diff --git a/.cursorrules b/.cursorrules new file mode 100644 index 0000000000..6db2fa640c --- /dev/null +++ b/.cursorrules @@ -0,0 +1,67 @@ +# Cursor Commit Rules for crc-org/crc + +When generating git commit messages: +- Follow the Conventional Commits specification format: + [optional scope]: + [blank line] + [optional body explaining what changed and why] + [optional footer with references, breaking changes] +- Use **imperative** and **present tense** in the subject line. +- Limit the **subject line to ≈50–72 characters**; wrap body at ≈72. +- Use meaningful scopes when it clarifies affected modules (e.g., `pkg`, `cmd`, `docs`, `test`, `tools`). +- Prefer concise yet descriptive wording of **what changed** and **why**, not just **how**. +- When applicable, reference related issues or pull request numbers in footer. + +# Allowed Commit Types +feat: add user-visible functionality or significant enhancements +fix: bug fix +docs: documentation only (e.g., README, docs/) +style: formatting, whitespace, linting (no code logic change) +refactor: code change that neither fixes a bug nor adds a feature +perf: performance improvement +test: adding or fixing tests +ci: continuous integration/config change (e.g., GitHub Actions) +build: build system or external dependency changes +chore: routine tasks without code change (scripts, config) + +# Type Rules +feat: +- New CLI subcommands or flags +- New OpenShift, MicroShift, or podman integration options + +fix: +- Correct unintended behaviors in cluster start/stop logic +- Resolve crashes, error cases, CLI UX bugs + +docs: +- Add or update CRC documentation pages +- Fix README typos or incorrect instructions + +style: +- Adjust formatting (go fmt), remove unused imports +- Linters fixes; no functional impact + +refactor: +- Extract utils, reorganize package structure +- Rename internal functions for clarity + +perf: +- Optimize CPU/memory usage in cluster operations + +test: +- Add or improve unit/integration tests +- Update CI test matrix + +ci: +- CI workflow fixes or adjustments (e.g., GitHub workflows) + +build: +- Update Go module versions +- Changes to build scripts (Makefile, tooling) + +chore: +- Non-code housekeeping (dependency cleanup, templating) + +# Footer Conventions +- Close issues with “Closes #.” +- Denote breaking changes via `BREAKING CHANGE:` in body/footer. \ No newline at end of file diff --git a/Makefile b/Makefile index 3d85f8d3bc..a221a3161f 100644 --- a/Makefile +++ b/Makefile @@ -29,7 +29,7 @@ ORG := github.com/crc-org MODULEPATH = $(ORG)/crc/v2 PACKAGE_DIR := packaging/$(GOOS) -SOURCES := $(shell git ls-files '*.go' ":^vendor") +SOURCES := $(shell find . -name '*.go' -not -path './vendor/*' -not -path './tools/vendor/*') SOURCES := $(SOURCES) go.mod go.sum Makefile RELEASE_INFO := release-info.json diff --git a/cmd/crc-embedder/cmd/embed.go b/cmd/crc-embedder/cmd/embed.go index e64ab5490c..529fbc9548 100644 --- a/cmd/crc-embedder/cmd/embed.go +++ b/cmd/crc-embedder/cmd/embed.go @@ -13,7 +13,6 @@ import ( "github.com/crc-org/crc/v2/pkg/crc/logging" "github.com/crc-org/crc/v2/pkg/download" - "github.com/crc-org/crc/v2/pkg/crc/machine/libvirt" "github.com/crc-org/crc/v2/pkg/crc/machine/vfkit" "github.com/YourFin/binappend" @@ -30,7 +29,6 @@ var ( const ( vfkitDriver = "vfkit-driver" vfkitEntitlement = "vfkit-entitlement" - libvirtDriver = "libvirt-driver" adminHelper = "admin-helper" backgroundLauncher = "background-launcher" ) @@ -114,8 +112,7 @@ var ( adminHelper: {constants.GetAdminHelperURLForOs("darwin"), 0755}, }, "linux": { - libvirtDriver: {libvirt.MachineDriverDownloadURL, 0755}, - adminHelper: {constants.GetAdminHelperURLForOs("linux"), 0755}, + adminHelper: {constants.GetAdminHelperURLForOs("linux"), 0755}, }, "windows": { adminHelper: {constants.GetAdminHelperURLForOs("windows"), 0755}, diff --git a/cmd/crc/cmd/daemon.go b/cmd/crc/cmd/daemon.go index 2497fd9465..62376930e8 100644 --- a/cmd/crc/cmd/daemon.go +++ b/cmd/crc/cmd/daemon.go @@ -2,21 +2,15 @@ package cmd import ( "bytes" - "context" "encoding/json" - "fmt" "io" - "net" "net/http" "os" "os/signal" - "regexp" "runtime" "syscall" "time" - "github.com/containers/gvisor-tap-vsock/pkg/types" - "github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork" "github.com/crc-org/crc/v2/pkg/crc/adminhelper" "github.com/crc-org/crc/v2/pkg/crc/api" "github.com/crc-org/crc/v2/pkg/crc/api/client" @@ -24,10 +18,9 @@ import ( crcConfig "github.com/crc-org/crc/v2/pkg/crc/config" "github.com/crc-org/crc/v2/pkg/crc/constants" "github.com/crc-org/crc/v2/pkg/crc/daemonclient" + "github.com/crc-org/crc/v2/pkg/crc/hostsapi" "github.com/crc-org/crc/v2/pkg/crc/logging" "github.com/crc-org/crc/v2/pkg/fileserver/fs9p" - "github.com/crc-org/machine/libmachine/drivers" - "github.com/docker/go-units" "github.com/gorilla/handlers" "github.com/pkg/errors" log "github.com/sirupsen/logrus" @@ -47,10 +40,7 @@ func init() { rootCmd.AddCommand(daemonCmd) } -const ( - hostVirtualIP = "192.168.127.254" - ErrDaemonAlreadyRunning = "daemon has been started in the background" -) +const ErrDaemonAlreadyRunning = "daemon has been started in the background" func checkDaemonVersion() (bool, error) { if _, err := daemonVersionSupplier(); err == nil { @@ -69,93 +59,22 @@ var daemonCmd = &cobra.Command{ return errors.New(ErrDaemonAlreadyRunning) } - virtualNetworkConfig := createNewVirtualNetworkConfig(config) - err := run(&virtualNetworkConfig) - return err + return run(config) }, } -func createNewVirtualNetworkConfig(providedConfig *crcConfig.Config) types.Configuration { - virtualNetworkConfig := types.Configuration{ - Debug: false, // never log packets - CaptureFile: os.Getenv("CRC_DAEMON_PCAP_FILE"), - MTU: 4000, // Large packets slightly improve the performance. Less small packets. - Subnet: "192.168.127.0/24", - GatewayIP: constants.VSockGateway, - GatewayMacAddress: "5a:94:ef:e4:0c:dd", - DHCPStaticLeases: map[string]string{ - "192.168.127.2": constants.VsockMacAddress, - }, - DNS: []types.Zone{ - { - Name: "apps-crc.testing.", - DefaultIP: net.ParseIP("192.168.127.2"), - }, - { - Name: "crc.testing.", - Records: []types.Record{ - { - Name: "host", - IP: net.ParseIP(hostVirtualIP), - }, - { - Name: "gateway", - IP: net.ParseIP("192.168.127.1"), - }, - { - Name: "api", - IP: net.ParseIP("192.168.127.2"), - }, - { - Name: "api-int", - IP: net.ParseIP("192.168.127.2"), - }, - { - Regexp: regexp.MustCompile("crc-(.*?)-master-0"), - IP: net.ParseIP("192.168.126.11"), - }, - }, - }, - { - Name: "containers.internal.", - Records: []types.Record{ - { - Name: "gateway", - IP: net.ParseIP(hostVirtualIP), - }, - }, - }, - { - Name: "docker.internal.", - Records: []types.Record{ - { - Name: "gateway", - IP: net.ParseIP(hostVirtualIP), - }, - }, - }, - }, - Protocol: types.HyperKitProtocol, - GatewayVirtualIPs: []string{hostVirtualIP}, - } - if providedConfig.Get(crcConfig.HostNetworkAccess).AsBool() { - log.Debugf("Enabling host network access") - if virtualNetworkConfig.NAT == nil { - virtualNetworkConfig.NAT = make(map[string]string) - } - virtualNetworkConfig.NAT[hostVirtualIP] = "127.0.0.1" - } - return virtualNetworkConfig -} - -func run(configuration *types.Configuration) error { - vn, err := virtualnetwork.New(configuration) +func run(cfg *crcConfig.Config) error { + // Create the hosts API token as soon as the daemon starts, independent of + // which systemd socket activated us (crc-http.socket vs crc-admin-helper.socket). + // crc start also creates/reuses this file when syncing the cluster Secret. + hostsAPIToken, err := hostsapi.LoadOrCreateToken(constants.HostsAPITokenPath) if err != nil { - return err + return errors.Wrap(err, "failed to load hosts API token") } errCh := make(chan error) + // Main HTTP listener for /api and /events endpoints listener, err := httpListener() if err != nil { return err @@ -166,7 +85,6 @@ func run(configuration *types.Configuration) error { return } mux := http.NewServeMux() - mux.Handle("/network/", interceptResponseBodyMiddleware(logRequestMiddleware(http.StripPrefix("/network", vn.Mux()), "network request"), logResponseBodyConditionally)) machineClient := newMachine() mux.Handle("/api/", interceptResponseBodyMiddleware(http.StripPrefix("/api", api.NewMux(config, machineClient, logging.Memory, segmentClient)), logResponseBodyConditionally)) mux.Handle("/events", interceptResponseBodyMiddleware(http.StripPrefix("/events", events.NewEventServer(machineClient)), logResponseBodyConditionally)) @@ -179,79 +97,30 @@ func run(configuration *types.Configuration) error { } }() - ln, err := vn.Listen("tcp", net.JoinHostPort(configuration.GatewayIP, "80")) + // Admin helper listener for /hosts endpoints (separate socket) + adminHelperLn, err := adminHelperListener() if err != nil { return err } - go func() { - mux := gatewayAPIMux(config, adminHelperHostsFileEditor{}) - s := &http.Server{ - Handler: handlers.LoggingHandler(os.Stderr, mux), - ReadTimeout: 10 * time.Second, - WriteTimeout: 10 * time.Second, - } - if err := s.Serve(ln); err != nil { - errCh <- errors.Wrap(err, "gateway http.Serve failed") - } - }() - networkListener, err := vn.Listen("tcp", net.JoinHostPort(hostVirtualIP, "80")) - if err != nil { - return err - } go func() { - mux := networkAPIMux(vn) - s := &http.Server{ - Handler: handlers.LoggingHandler(os.Stderr, mux), - ReadTimeout: 10 * time.Second, - WriteTimeout: 10 * time.Second, - } - if err := s.Serve(networkListener); err != nil { - errCh <- errors.Wrap(err, "host virtual IP http.Serve failed") - } - }() - - go func() { - var oldCancel context.CancelFunc - for { - ctx, cancel := context.WithCancel(context.Background()) - conn, err := unixgramListener(ctx, vn) - if err != nil && errors.Is(err, drivers.ErrNotImplemented) { - cancel() - break - } - if err != nil && !errors.Is(err, net.ErrClosed) { - logging.Errorf("unixgramListener error: %v", err) - } - - if oldCancel != nil { - logging.Warnf("New connection to %s. Closing old connection", conn.LocalAddr().String()) - oldCancel() - } - oldCancel = cancel - time.Sleep(1 * time.Second) + if adminHelperLn == nil { + return } - }() - - vsockListener, err := vsockListener() - if err != nil { - return err - } - go func() { - mux := http.NewServeMux() - mux.Handle(types.ConnectPath, vn.Mux()) + mux := gatewayAPIMux(cfg, adminHelperHostsFileEditor{}, hostsAPIToken) s := &http.Server{ - Handler: mux, - ReadTimeout: 10 * time.Second, - WriteTimeout: 10 * time.Second, + Handler: handlers.LoggingHandler(os.Stderr, mux), + ReadHeaderTimeout: 10 * time.Second, + ReadTimeout: 10 * time.Second, + WriteTimeout: 10 * time.Second, } - if err := s.Serve(vsockListener); err != nil { - errCh <- errors.Wrap(err, "virtualnetwork http.Serve failed") + if err := s.Serve(adminHelperLn); err != nil { + errCh <- errors.Wrap(err, "admin helper http.Serve failed") } }() - // 9p home directory sharing - if runtime.GOOS == "windows" && config.Get(crcConfig.EnableSharedDirs).AsBool() { + // 9p home directory sharing (Windows only) + if runtime.GOOS == "windows" && cfg.Get(crcConfig.EnableSharedDirs).AsBool() { // 9p over hvsock listener9pHvsock, err := fs9p.GetHvsockListener(constants.Plan9HvsockGUID) if err != nil { @@ -274,42 +143,10 @@ func run(configuration *types.Configuration) error { logging.Errorf("9p server (hvsock) error: %v", err) } }() - - // 9p over TCP (as a backup) - listener9pTCP, err := vn.Listen("tcp", net.JoinHostPort(configuration.GatewayIP, fmt.Sprintf("%d", constants.Plan9TcpPort))) - if err != nil { - return err - } - server9pTCP, err := fs9p.New9pServer(listener9pTCP, constants.GetHomeDir()) - if err != nil { - return err - } - if err := server9pTCP.Start(); err != nil { - return err - } - defer func() { - if err := server9pTCP.Stop(); err != nil { - logging.Warnf("error stopping 9p server (tcp): %v", err) - } - }() - go func() { - if err := server9pTCP.WaitForError(); err != nil { - logging.Errorf("9p server (tcp) error: %v", err) - } - }() } startupDone() - if logging.IsDebug() { - go func() { - for { - fmt.Printf("%v sent to the VM, %v received from the VM\n", units.HumanSize(float64(vn.BytesSent())), units.HumanSize(float64(vn.BytesReceived()))) - time.Sleep(5 * time.Second) - } - }() - } - c := make(chan os.Signal, 1) if watchdog { @@ -346,12 +183,13 @@ func (adminHelperHostsFileEditor) Remove(hostnames ...string) error { return adminhelper.RemoveFromHostsFile(hostnames...) } -// This API is only exposed in the virtual network (only the VM can reach this). -// Any process inside the VM can reach it by connecting to gateway.crc.testing:80. -func gatewayAPIMux(cfg *crcConfig.Config, hostsEditor HostsFileEditor) *http.ServeMux { +// gatewayAPIMux creates the HTTP mux for the admin helper hosts file API. +// This API allows adding and removing entries from the hosts file. +// Requests must include Authorization: Bearer . +func gatewayAPIMux(cfg *crcConfig.Config, hostsEditor HostsFileEditor, hostsAPIToken string) *http.ServeMux { mux := http.NewServeMux() mux.HandleFunc("/hosts/add", func(w http.ResponseWriter, r *http.Request) { - acceptJSONStringArray(w, r, func(hostnames []string) error { + acceptJSONStringArray(w, r, hostsAPIToken, func(hostnames []string) error { if !cfg.Get(crcConfig.ModifyHostsFile).AsBool() { logging.Infof("Skipping hosts file modification because 'modify-hosts-file' is set to false") @@ -361,7 +199,7 @@ func gatewayAPIMux(cfg *crcConfig.Config, hostsEditor HostsFileEditor) *http.Ser }) }) mux.HandleFunc("/hosts/remove", func(w http.ResponseWriter, r *http.Request) { - acceptJSONStringArray(w, r, func(hostnames []string) error { + acceptJSONStringArray(w, r, hostsAPIToken, func(hostnames []string) error { if !cfg.Get(crcConfig.ModifyHostsFile).AsBool() { logging.Infof("Skipping hosts file modification because 'modify-hosts-file' is set to false") @@ -373,17 +211,15 @@ func gatewayAPIMux(cfg *crcConfig.Config, hostsEditor HostsFileEditor) *http.Ser return mux } -func networkAPIMux(vn *virtualnetwork.VirtualNetwork) *http.ServeMux { - mux := http.NewServeMux() - mux.Handle("/", vn.Mux()) - return mux -} - -func acceptJSONStringArray(w http.ResponseWriter, r *http.Request, fun func(hostnames []string) error) { +func acceptJSONStringArray(w http.ResponseWriter, r *http.Request, hostsAPIToken string, fun func(hostnames []string) error) { if r.Method != http.MethodPost { http.Error(w, "post only", http.StatusBadRequest) return } + if !hostsapi.BearerTokenAuthorized(r.Header.Get("Authorization"), hostsAPIToken) { + http.Error(w, "unauthorized", http.StatusUnauthorized) + return + } var req []string if err := json.NewDecoder(r.Body).Decode(&req); err != nil { http.Error(w, err.Error(), http.StatusBadRequest) diff --git a/cmd/crc/cmd/daemon_darwin.go b/cmd/crc/cmd/daemon_darwin.go index d50484b070..6ea7aab646 100644 --- a/cmd/crc/cmd/daemon_darwin.go +++ b/cmd/crc/cmd/daemon_darwin.go @@ -1,32 +1,13 @@ package cmd import ( - "context" - "fmt" "net" "os" - "github.com/containers/gvisor-tap-vsock/pkg/transport" - "github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork" "github.com/crc-org/crc/v2/pkg/crc/constants" "github.com/crc-org/crc/v2/pkg/crc/logging" - "github.com/pkg/errors" ) -func vsockListener() (net.Listener, error) { - _ = os.Remove(constants.TapSocketPath) - ln, err := net.Listen("unix", constants.TapSocketPath) - if err != nil { - return nil, err - } - if err = constants.EnsureSocketFilesPermissions(constants.TapSocketPath); err != nil { - _ = ln.Close() - return nil, err - } - logging.Infof("listening %s", constants.TapSocketPath) - return ln, nil -} - func httpListener() (net.Listener, error) { _ = os.Remove(constants.DaemonHTTPSocketPath) ln, err := net.Listen("unix", constants.DaemonHTTPSocketPath) @@ -41,29 +22,14 @@ func httpListener() (net.Listener, error) { return ln, nil } -func unixgramListener(ctx context.Context, vn *virtualnetwork.VirtualNetwork) (*net.UnixConn, error) { - _ = os.Remove(constants.UnixgramSocketPath) - conn, err := transport.ListenUnixgram(fmt.Sprintf("unixgram://%v", constants.UnixgramSocketPath)) +func adminHelperListener() (net.Listener, error) { + addr := "127.0.0.1:9764" + ln, err := net.Listen("tcp", addr) + logging.Infof("admin helper listening %s", addr) if err != nil { - return conn, errors.Wrap(err, "failed to listen unixgram") - } - if err = constants.EnsureSocketFilesPermissions(constants.UnixgramSocketPath); err != nil { - _ = conn.Close() - return nil, errors.Wrap(err, "failed to set permissions for unixgram socket") - } - logging.Infof("listening on %s", constants.UnixgramSocketPath) - vfkitConn, err := transport.AcceptVfkit(conn) - if err != nil { - return conn, errors.Wrap(err, "failed to accept vfkit connection") + return nil, err } - go func() { - err := vn.AcceptVfkit(ctx, vfkitConn) - if err != nil { - logging.Errorf("failed to accept vfkit connection: %v", err) - return - } - }() - return conn, err + return ln, nil } func checkIfDaemonIsRunning() (bool, error) { diff --git a/cmd/crc/cmd/daemon_linux.go b/cmd/crc/cmd/daemon_linux.go index 24b0aae677..39f962813f 100644 --- a/cmd/crc/cmd/daemon_linux.go +++ b/cmd/crc/cmd/daemon_linux.go @@ -1,24 +1,19 @@ package cmd import ( - "context" "fmt" "net" "os" - "github.com/containers/gvisor-tap-vsock/pkg/transport" - "github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork" "github.com/coreos/go-systemd/v22/activation" "github.com/coreos/go-systemd/v22/daemon" "github.com/crc-org/crc/v2/pkg/crc/constants" "github.com/crc-org/crc/v2/pkg/crc/logging" - "github.com/crc-org/machine/libmachine/drivers" - "github.com/mdlayher/vsock" ) const ( - vsockUnitName = "crc-vsock.socket" - httpUnitName = "crc-http.socket" + httpUnitName = "crc-http.socket" + adminHelperUnitName = "crc-admin-helper.socket" ) // listenerWithNames() cannot be called multiple times, call it once at @@ -42,9 +37,6 @@ func checkIfDaemonIsRunning() (bool, error) { // listenersWithNames maps a listener name to a set of net.Listener instances. // This is the same code as https://github.com/coreos/go-systemd/blob/main/activation/listeners.go -// with support for vsock -// -// This function can only be called once, subsequent calls will always return an empty list func listenersWithNames() (map[string][]net.Listener, error) { files := activation.Files(true) listeners := map[string][]net.Listener{} @@ -52,13 +44,8 @@ func listenersWithNames() (map[string][]net.Listener, error) { for _, f := range files { pc, err := net.FileListener(f) if err != nil { - logging.Debugf("socket-activation: net.FileListener() error, falling back to mdlayher/vsock.FileListener(): %v", err) - // net.FileListener does not support vsock, need to fallback to vsock-specific code - pc, err = vsock.FileListener(f) - if err != nil { - logging.Debugf("failed to create listener for %s: %v", f.Name(), err) - continue - } + logging.Debugf("socket-activation: net.FileListener() error: %v", err) + continue } current, ok := listeners[f.Name()] if !ok { @@ -86,25 +73,6 @@ func getSystemdListener(unitName string) (net.Listener, error) { return listeners[0], nil } -func vsockListener() (net.Listener, error) { - ln, err := getSystemdListener(vsockUnitName) - if err != nil { - return nil, err - } - if ln != nil { - logging.Infof("using socket provided by %s", vsockUnitName) - return ln, nil - } - - // no socket activation, we need to create the listener - ln, err = transport.Listen(transport.DefaultURL) - logging.Infof("listening %s", transport.DefaultURL) - if err != nil { - return nil, err - } - return ln, nil -} - func httpListener() (net.Listener, error) { // check for systemd socket-activation ln, err := getSystemdListener(httpUnitName) @@ -134,8 +102,23 @@ func httpListener() (net.Listener, error) { return ln, nil } -func unixgramListener(_ context.Context, _ *virtualnetwork.VirtualNetwork) (*net.UnixConn, error) { - return nil, drivers.ErrNotImplemented +func adminHelperListener() (net.Listener, error) { + ln, err := getSystemdListener(adminHelperUnitName) + if err != nil { + return nil, err + } + if ln != nil { + logging.Infof("using socket provided by %s", adminHelperUnitName) + return ln, nil + } + + addr := "127.0.0.1:9764" + ln, err = net.Listen("tcp", addr) + logging.Infof("admin helper listening %s", addr) + if err != nil { + return nil, err + } + return ln, nil } func startupDone() { diff --git a/cmd/crc/cmd/daemon_test.go b/cmd/crc/cmd/daemon_test.go index d1eeb70fba..f6cf7c95c5 100644 --- a/cmd/crc/cmd/daemon_test.go +++ b/cmd/crc/cmd/daemon_test.go @@ -3,15 +3,12 @@ package cmd import ( "bytes" "errors" - "net" "net/http" "net/http/httptest" "net/url" "os" - "regexp" "testing" - "github.com/containers/gvisor-tap-vsock/pkg/types" "github.com/crc-org/crc/v2/pkg/crc/api/client" crcConfig "github.com/crc-org/crc/v2/pkg/crc/config" @@ -90,72 +87,6 @@ func TestCheckDaemonVersion_WhenErrorReturnedWhileFetchingVersion_ThenReturnFals assert.Equal(t, false, result) } -func TestCreateNewVirtualNetworkConfig(t *testing.T) { - // Given - oldPcapFileEnvVal := os.Getenv("CRC_DAEMON_PCAP_FILE") - err := os.Setenv("CRC_DAEMON_PCAP_FILE", "/tmp/pcapfile") - assert.NoError(t, err) - defer func(key, value string) { - err := os.Setenv(key, value) - assert.NoError(t, err) - }("CRC_DAEMON_PCAP_FILE", oldPcapFileEnvVal) - testCrcConfig := crcConfig.New(crcConfig.NewEmptyInMemoryStorage(), crcConfig.NewEmptyInMemorySecretStorage()) - - // When - virtualNetworkConfig := createNewVirtualNetworkConfig(testCrcConfig) - - // Then - assert.Equal(t, false, virtualNetworkConfig.Debug) - assert.Equal(t, "/tmp/pcapfile", virtualNetworkConfig.CaptureFile) - assert.Equal(t, 4000, virtualNetworkConfig.MTU) - assert.Equal(t, "192.168.127.0/24", virtualNetworkConfig.Subnet) - assert.Equal(t, "192.168.127.1", virtualNetworkConfig.GatewayIP) - assert.ElementsMatch(t, []string{"192.168.127.254"}, virtualNetworkConfig.GatewayVirtualIPs) - assert.Equal(t, "5a:94:ef:e4:0c:dd", virtualNetworkConfig.GatewayMacAddress) - assert.Equal(t, types.Protocol("hyperkit"), virtualNetworkConfig.Protocol) - - assert.Len(t, virtualNetworkConfig.DHCPStaticLeases, 1) - assert.Equal(t, "5a:94:ef:e4:0c:ee", virtualNetworkConfig.DHCPStaticLeases["192.168.127.2"]) - - assert.Len(t, virtualNetworkConfig.DNS, 4) - assert.Equal(t, "apps-crc.testing.", virtualNetworkConfig.DNS[0].Name) - assert.Equal(t, net.ParseIP("192.168.127.2"), virtualNetworkConfig.DNS[0].DefaultIP) - assert.Equal(t, "crc.testing.", virtualNetworkConfig.DNS[1].Name) - assert.Equal(t, "host", virtualNetworkConfig.DNS[1].Records[0].Name) - assert.Equal(t, net.ParseIP("192.168.127.254"), virtualNetworkConfig.DNS[1].Records[0].IP) - assert.Equal(t, "gateway", virtualNetworkConfig.DNS[1].Records[1].Name) - assert.Equal(t, net.ParseIP("192.168.127.1"), virtualNetworkConfig.DNS[1].Records[1].IP) - assert.Equal(t, "api", virtualNetworkConfig.DNS[1].Records[2].Name) - assert.Equal(t, net.ParseIP("192.168.127.2"), virtualNetworkConfig.DNS[1].Records[2].IP) - assert.Equal(t, "api-int", virtualNetworkConfig.DNS[1].Records[3].Name) - assert.Equal(t, net.ParseIP("192.168.127.2"), virtualNetworkConfig.DNS[1].Records[3].IP) - assert.Equal(t, regexp.MustCompile("crc-(.*?)-master-0"), virtualNetworkConfig.DNS[1].Records[4].Regexp) - assert.Equal(t, net.ParseIP("192.168.126.11"), virtualNetworkConfig.DNS[1].Records[4].IP) - - assert.Equal(t, "containers.internal.", virtualNetworkConfig.DNS[2].Name) - assert.Len(t, virtualNetworkConfig.DNS[2].Records, 1) - assert.Equal(t, "gateway", virtualNetworkConfig.DNS[2].Records[0].Name) - assert.Equal(t, net.ParseIP("192.168.127.254"), virtualNetworkConfig.DNS[2].Records[0].IP) - assert.Equal(t, "docker.internal.", virtualNetworkConfig.DNS[3].Name) - assert.Len(t, virtualNetworkConfig.DNS[3].Records, 1) - assert.Equal(t, "gateway", virtualNetworkConfig.DNS[3].Records[0].Name) - assert.Equal(t, net.ParseIP("192.168.127.254"), virtualNetworkConfig.DNS[3].Records[0].IP) -} - -func TestCreateNewVirtualNetworkConfig_WhenHostNetworkConfigSet_ThenSetNAT(t *testing.T) { - // Given - testCrcConfig := crcConfig.New(crcConfig.NewEmptyInMemoryStorage(), crcConfig.NewEmptyInMemorySecretStorage()) - testCrcConfig.AddSetting("host-network-access", false, crcConfig.ValidateBool, crcConfig.SuccessfullyApplied, "test message") - _, err := testCrcConfig.Set(crcConfig.HostNetworkAccess, true) - assert.NoError(t, err) - - // When - virtualNetworkConfig := createNewVirtualNetworkConfig(testCrcConfig) - - // Then - assert.Equal(t, "127.0.0.1", virtualNetworkConfig.NAT["192.168.127.254"]) -} - type fakeHostsFileEditor struct { addCalled bool removeCalled bool @@ -178,6 +109,7 @@ func (fake *fakeHostsFileEditor) Remove(hostnames ...string) error { } func TestGatewayAPIMux_HostsEndpointsRespectModifyHostsFile(t *testing.T) { + const token = "test-hosts-api-token" // nolint:gosec tests := []struct { name string modifyHostsFile bool @@ -217,11 +149,12 @@ func TestGatewayAPIMux_HostsEndpointsRespectModifyHostsFile(t *testing.T) { _, err := cfg.Set(crcConfig.ModifyHostsFile, test.modifyHostsFile) assert.NoError(t, err) hostsEditor := &fakeHostsFileEditor{} - mux := gatewayAPIMux(cfg, hostsEditor) + mux := gatewayAPIMux(cfg, hostsEditor, token) rec := httptest.NewRecorder() // When req := httptest.NewRequest(http.MethodPost, test.path, bytes.NewBufferString(`["api.crc.testing"]`)) + req.Header.Set("Authorization", "Bearer "+token) mux.ServeHTTP(rec, req) // Then @@ -231,3 +164,35 @@ func TestGatewayAPIMux_HostsEndpointsRespectModifyHostsFile(t *testing.T) { }) } } + +func TestGatewayAPIMux_HostsEndpointsRequireBearerToken(t *testing.T) { + cfg := crcConfig.New(crcConfig.NewEmptyInMemoryStorage(), crcConfig.NewEmptyInMemorySecretStorage()) + crcConfig.RegisterSettings(cfg) + _, err := cfg.Set(crcConfig.ModifyHostsFile, true) + assert.NoError(t, err) + + tests := []struct { + name string + header string + }{ + {name: "missing"}, + {name: "wrong", header: "Bearer other-token"}, + {name: "not-bearer", header: "expected-token"}, + } + + for _, test := range tests { + t.Run(test.name, func(t *testing.T) { + hostsEditor := &fakeHostsFileEditor{} + mux := gatewayAPIMux(cfg, hostsEditor, "expected-token") + rec := httptest.NewRecorder() + req := httptest.NewRequest(http.MethodPost, "/hosts/add", bytes.NewBufferString(`["api.crc.testing"]`)) + if test.header != "" { + req.Header.Set("Authorization", test.header) + } + mux.ServeHTTP(rec, req) + + assert.Equal(t, http.StatusUnauthorized, rec.Code) + assert.False(t, hostsEditor.addCalled) + }) + } +} diff --git a/cmd/crc/cmd/daemon_windows.go b/cmd/crc/cmd/daemon_windows.go index 2773c6e8b2..939694633f 100644 --- a/cmd/crc/cmd/daemon_windows.go +++ b/cmd/crc/cmd/daemon_windows.go @@ -1,26 +1,13 @@ package cmd import ( - "context" "net" "github.com/Microsoft/go-winio" - "github.com/containers/gvisor-tap-vsock/pkg/transport" - "github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork" "github.com/crc-org/crc/v2/pkg/crc/constants" "github.com/crc-org/crc/v2/pkg/crc/logging" - "github.com/crc-org/machine/libmachine/drivers" ) -func vsockListener() (net.Listener, error) { - ln, err := transport.Listen(transport.DefaultURL) - logging.Infof("listening %s", transport.DefaultURL) - if err != nil { - return nil, err - } - return ln, nil -} - func httpListener() (net.Listener, error) { ln, err := winio.ListenPipe(constants.DaemonHTTPNamedPipe, &winio.PipeConfig{ MessageMode: true, // Use message mode so that CloseWrite() is supported @@ -34,12 +21,18 @@ func httpListener() (net.Listener, error) { return ln, nil } -func checkIfDaemonIsRunning() (bool, error) { - return checkDaemonVersion() +func adminHelperListener() (net.Listener, error) { + addr := "127.0.0.1:9764" + ln, err := net.Listen("tcp", addr) + logging.Infof("admin helper listening %s", addr) + if err != nil { + return nil, err + } + return ln, nil } -func unixgramListener(_ context.Context, _ *virtualnetwork.VirtualNetwork) (*net.UnixConn, error) { - return nil, drivers.ErrNotImplemented +func checkIfDaemonIsRunning() (bool, error) { + return checkDaemonVersion() } func startupDone() { diff --git a/cmd/crc/cmd/start.go b/cmd/crc/cmd/start.go index 7bd796360d..b6eb446d44 100644 --- a/cmd/crc/cmd/start.go +++ b/cmd/crc/cmd/start.go @@ -16,12 +16,10 @@ import ( "github.com/crc-org/crc/v2/pkg/crc/cluster" crcConfig "github.com/crc-org/crc/v2/pkg/crc/config" "github.com/crc-org/crc/v2/pkg/crc/constants" - "github.com/crc-org/crc/v2/pkg/crc/daemonclient" crcErrors "github.com/crc-org/crc/v2/pkg/crc/errors" "github.com/crc-org/crc/v2/pkg/crc/logging" "github.com/crc-org/crc/v2/pkg/crc/machine/bundle" "github.com/crc-org/crc/v2/pkg/crc/machine/types" - "github.com/crc-org/crc/v2/pkg/crc/network" "github.com/crc-org/crc/v2/pkg/crc/preflight" "github.com/crc-org/crc/v2/pkg/crc/preset" "github.com/crc-org/crc/v2/pkg/crc/validation" @@ -94,9 +92,10 @@ func runStart(ctx context.Context) (*types.StartResult, error) { isRunning, _ := client.IsRunning() if !isRunning { - if err := checkDaemonStarted(); err != nil { + // TODO: Uncomment this when we need it only for admin-helper + /*if err := checkDaemonStarted(); err != nil { return nil, err - } + }*/ if err := preflight.StartPreflightChecks(config); err != nil { return nil, crcos.CodeExitError{ @@ -328,6 +327,8 @@ func commandLinePrefix(shell string) string { return "$" } +// TODO: Uncomment this when we need it only for admin-helper +/* func checkDaemonStarted() error { if crcConfig.GetNetworkMode(config) == network.SystemNetworkingMode { return nil @@ -338,6 +339,7 @@ func checkDaemonStarted() error { } return daemonclient.CheckVersionMismatch(v) } +*/ func portFallbackWarning() string { var fallbackPortWarning string diff --git a/go.mod b/go.mod index 5331f437ad..6706d2ce50 100644 --- a/go.mod +++ b/go.mod @@ -30,7 +30,6 @@ require ( github.com/kofalt/go-memoize v0.0.0-20220914132407-0b5d6a304579 github.com/linuxkit/virtsock v0.0.0-20220523201153-1a23e78aa7a2 github.com/mattn/go-colorable v0.1.15 - github.com/mdlayher/vsock v1.3.0 github.com/onsi/ginkgo/v2 v2.32.0 github.com/onsi/gomega v1.42.1 github.com/opencontainers/image-spec v1.1.1 @@ -67,7 +66,6 @@ require ( k8s.io/api v0.35.1 k8s.io/apimachinery v0.35.1 k8s.io/client-go v0.35.1 - libvirt.org/go/libvirtxml v1.12005.0 ) require ( @@ -75,7 +73,6 @@ require ( github.com/RangelReale/osincli v0.0.0-20160924135400-fababb0555f2 // indirect github.com/VividCortex/ewma v1.2.0 // indirect github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d // indirect - github.com/apparentlymart/go-cidr v1.1.1 // indirect github.com/areYouLazy/libhosty v1.1.0 // indirect github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869 // indirect github.com/clipperhouse/uax29/v2 v2.7.0 // indirect @@ -110,11 +107,9 @@ require ( github.com/gofrs/uuid v4.3.1+incompatible // indirect github.com/gogo/protobuf v1.3.2 // indirect github.com/golang/protobuf v1.5.4 // indirect - github.com/google/btree v1.1.3 // indirect github.com/google/gnostic-models v0.7.0 // indirect github.com/google/go-cmp v0.7.0 // indirect github.com/google/go-containerregistry v0.21.5 // indirect - github.com/google/gopacket v1.1.19 // indirect github.com/google/pprof v0.0.0-20260402051712-545e8a4df936 // indirect github.com/google/uuid v1.6.0 // indirect github.com/gorilla/mux v1.8.1 // indirect @@ -122,8 +117,6 @@ require ( github.com/hashicorp/go-memdb v1.3.4 // indirect github.com/hashicorp/golang-lru v1.0.2 // indirect github.com/inconshreveable/mousetrap v1.1.0 // indirect - github.com/inetaf/tcpproxy v0.0.0-20250222171855-c4b9df066048 // indirect - github.com/insomniacslk/dhcp v0.0.0-20240710054256-ddd8a41251c9 // indirect github.com/josharian/intern v1.0.0 // indirect github.com/json-iterator/go v1.1.12 // indirect github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect @@ -133,9 +126,7 @@ require ( github.com/mattn/go-isatty v0.0.22 // indirect github.com/mattn/go-runewidth v0.0.24 // indirect github.com/mattn/go-sqlite3 v1.14.44 // indirect - github.com/mdlayher/socket v0.6.0 // indirect github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect - github.com/miekg/dns v1.1.72 // indirect github.com/miekg/pkcs11 v1.1.1 // indirect github.com/moby/moby/client v0.4.1 // indirect github.com/moby/sys/capability v0.4.0 // indirect @@ -144,12 +135,10 @@ require ( github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect - github.com/nxadm/tail v1.4.11 // indirect github.com/opencontainers/go-digest v1.0.0 // indirect github.com/opencontainers/runtime-spec v1.3.0 // indirect github.com/patrickmn/go-cache v2.1.0+incompatible // indirect github.com/pelletier/go-toml/v2 v2.2.4 // indirect - github.com/pierrec/lz4/v4 v4.1.14 // indirect github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect github.com/proglottis/gpgme v0.1.6 // indirect @@ -168,7 +157,6 @@ require ( github.com/subosito/gotenv v1.6.0 // indirect github.com/tklauser/go-sysconf v0.3.16 // indirect github.com/tklauser/numcpus v0.11.0 // indirect - github.com/u-root/uio v0.0.0-20240224005618-d2acac8f3701 // indirect github.com/ulikunitz/xz v0.5.15 // indirect github.com/vbatts/tar-split v0.12.3 // indirect github.com/vbauerster/mpb/v8 v8.12.0 // indirect @@ -187,7 +175,6 @@ require ( gopkg.in/cenkalti/backoff.v1 v1.1.0 // indirect gopkg.in/evanphx/json-patch.v4 v4.13.0 // indirect gopkg.in/inf.v0 v0.9.1 // indirect - gvisor.dev/gvisor v0.0.0-20240916094835-a174eb65023f // indirect k8s.io/klog/v2 v2.130.1 // indirect k8s.io/kube-openapi v0.0.0-20250910181357-589584f1c912 // indirect k8s.io/utils v0.0.0-20251002143259-bc988d571ff4 // indirect diff --git a/go.sum b/go.sum index 884bfe45f7..38e05f982d 100644 --- a/go.sum +++ b/go.sum @@ -22,11 +22,8 @@ github.com/YourFin/binappend v0.0.0-20181105185800-0add4bf0b9ad h1:OUogh+sUEo6yR github.com/YourFin/binappend v0.0.0-20181105185800-0add4bf0b9ad/go.mod h1:QhzJSct0NZ/q7HOtQrw867061u93HYPWa4KTotzdzls= github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d h1:licZJFw2RwpHMqeKTCYkitsPqHNxTmd4SNR5r94FGM8= github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d/go.mod h1:asat636LX7Bqt5lYEZ27JNDcqxfjdBQuJ/MM4CN/Lzo= -github.com/apparentlymart/go-cidr v1.1.1 h1:oEEk8CE0HP0YpHxsegk/TaOtR2FLHdWv4p3eM4ceUwg= -github.com/apparentlymart/go-cidr v1.1.1/go.mod h1:EBcsNrHc3zQeuaeCeCtQruQm+n9/YjEn/vI25Lg7Gwc= github.com/areYouLazy/libhosty v1.1.0 h1:kO6UTk9z72cHW28A/V1kKi7C8iKQGqINiVGXp+05Eao= github.com/areYouLazy/libhosty v1.1.0/go.mod h1:dV4ir3feRrTbWdcJ21mt3MeZlASg0sc8db6nimL9GOA= -github.com/armon/go-proxyproto v0.0.0-20210323213023-7e956b284f0a/go.mod h1:QmP9hvJ91BbJmGVGSbutW19IC0Q9phDCLGaomwTJbgU= github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 h1:DklsrG3dyBCFEj5IhUbnKptjxatkF07cF2ak3yi77so= github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2/go.mod h1:WaHUgvxTVq04UNunO+XhnAqY/wQc+bxr74GqbsZ/Jqw= github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869 h1:DDGfHa7BWjL4YnC6+E63dPcxHo2sUxDIu8g3QgEJdRY= @@ -104,11 +101,8 @@ github.com/fatih/color v1.19.0 h1:Zp3PiM21/9Ld6FzSKyL5c/BULoe/ONr9KlbYVOfG8+w= github.com/fatih/color v1.19.0/go.mod h1:zNk67I0ZUT1bEGsSGyCZYZNrHuTkJJB+r6Q9VuMi0LE= github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg= github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U= -github.com/foxcpp/go-mockdns v1.2.0 h1:omK3OrHRD1IWJz1FuFBCFquhXslXoF17OvBS6JPzZF0= -github.com/foxcpp/go-mockdns v1.2.0/go.mod h1:IhLeSFGed3mJIAXPH2aiRQB+kqz7oqu8ld2qVbOu7Wk= github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8= github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0= -github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw= github.com/fsnotify/fsnotify v1.10.1 h1:b0/UzAf9yR5rhf3RPm9gf3ehBPpf0oZKIjtpKrx59Ho= github.com/fsnotify/fsnotify v1.10.1/go.mod h1:TLheqan6HD6GBK6PrDWyDPBaEV8LspOxvPSjC+bVfgo= github.com/fxamacker/cbor/v2 v2.9.0 h1:NpKPmjDBgUfBms6tr6JZkTHtfFGcMKsw3eGcmD/sapM= @@ -151,8 +145,6 @@ github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q= github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q= github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek= github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps= -github.com/google/btree v1.1.3 h1:CVpQJjYgC4VbzxeGVHfvZrv1ctoYCAI8vbl07Fcxlyg= -github.com/google/btree v1.1.3/go.mod h1:qOPhT0dTNdNzV6Z/lhRX0YXUafgPLFUh+gZMl761Gm4= github.com/google/gnostic-models v0.7.0 h1:qwTtogB15McXDaNqTZdzPJRHvaVJlAl+HVQnLmJEJxo= github.com/google/gnostic-models v0.7.0/go.mod h1:whL5G0m6dmc5cPxKc5bdKdEN3UjI7OUGxBlw57miDrQ= github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= @@ -161,8 +153,6 @@ github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX github.com/google/go-containerregistry v0.21.5 h1:KTJG9Pn/jC0VdZR6ctV3/jcN+q6/Iqlx0sTVz3ywZlM= github.com/google/go-containerregistry v0.21.5/go.mod h1:ySvMuiWg+dOsRW0Hw8GYwfMwBlNRTmpYBFJPlkco5zU= github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= -github.com/google/gopacket v1.1.19 h1:ves8RnFZPGiFnTS0uPQStjwru6uO6h+nlr9j6fL7kF8= -github.com/google/gopacket v1.1.19/go.mod h1:iJ8V8n6KS+z2U1A8pUwu8bW5SyEMkXJB8Yo/Vo+TKTo= github.com/google/pprof v0.0.0-20260402051712-545e8a4df936 h1:EwtI+Al+DeppwYX2oXJCETMO23COyaKGP6fHVpkpWpg= github.com/google/pprof v0.0.0-20260402051712-545e8a4df936/go.mod h1:MxpfABSjhmINe3F1It9d+8exIHFvUqtLIRCdOGNXqiI= github.com/google/uuid v1.0.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= @@ -192,16 +182,10 @@ github.com/hinshun/vt10x v0.0.0-20220119200601-820417d04eec h1:qv2VnGeEQHchGaZ/u github.com/hinshun/vt10x v0.0.0-20220119200601-820417d04eec/go.mod h1:Q48J4R4DvxnHolD5P8pOtXigYlRuPLGl6moFx3ulM68= github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8= github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw= -github.com/inetaf/tcpproxy v0.0.0-20250222171855-c4b9df066048 h1:jaqViOFFlZtkAwqvwZN+id37fosQqR5l3Oki9Dk4hz8= -github.com/inetaf/tcpproxy v0.0.0-20250222171855-c4b9df066048/go.mod h1:Di7LXRyUcnvAcLicFhtM9/MlZl/TNgRSDHORM2c6CMI= -github.com/insomniacslk/dhcp v0.0.0-20240710054256-ddd8a41251c9 h1:LZJWucZz7ztCqY6Jsu7N9g124iJ2kt/O62j3+UchZFg= -github.com/insomniacslk/dhcp v0.0.0-20240710054256-ddd8a41251c9/go.mod h1:KclMyHxX06VrVr0DJmeFSUb1ankt7xTfoOA35pCkoic= github.com/jinzhu/copier v0.4.0 h1:w3ciUoD19shMCRargcpm0cm91ytaBhDvuRpz1ODO/U8= github.com/jinzhu/copier v0.4.0/go.mod h1:DfbEm0FYsaqBcKcFuvmOZb218JkPGtvSHsKg8S8hyyg= github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY= github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y= -github.com/josharian/native v1.1.0 h1:uuaP0hAbW7Y4l0ZRQ6C9zfb7Mg1mbFKry/xzDAfmtLA= -github.com/josharian/native v1.1.0/go.mod h1:7X/raswPFr05uY3HiLlYeyQntB6OO7E/d2Cu7qoaN2w= github.com/joshdk/go-junit v1.0.0 h1:S86cUKIdwBHWwA6xCmFlf3RTLfVXYQfvanM5Uh+K6GE= github.com/joshdk/go-junit v1.0.0/go.mod h1:TiiV0PqkaNfFXjEiyjWM3XXrhVyCa1K4Zfga6W52ung= github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM= @@ -244,19 +228,11 @@ github.com/mattn/go-runewidth v0.0.24 h1:cpokDiIn0MGnhdHwuWnJBITySJ20QyNGnY2kR/a github.com/mattn/go-runewidth v0.0.24/go.mod h1:XBkDxAl56ILZc9knddidhrOlY5R/pDhgLpndooCuJAs= github.com/mattn/go-sqlite3 v1.14.44 h1:3VSe+xafpbzsLbdr2AWlAZk9yRHiBhTBakioXaCKTF8= github.com/mattn/go-sqlite3 v1.14.44/go.mod h1:pjEuOr8IwzLJP2MfGeTb0A35jauH+C2kbHKBr7yXKVQ= -github.com/mdlayher/packet v1.1.2 h1:3Up1NG6LZrsgDVn6X4L9Ge/iyRyxFEFD9o6Pr3Q1nQY= -github.com/mdlayher/packet v1.1.2/go.mod h1:GEu1+n9sG5VtiRE4SydOmX5GTwyyYlteZiFU+x0kew4= -github.com/mdlayher/socket v0.6.0 h1:ScZPaAGyO1icQnbFrhPM8mnXyMu9qukC1K4ZoM2IQKU= -github.com/mdlayher/socket v0.6.0/go.mod h1:q7vozUAnxSqnjHc12Fik5yUKIzfZ8ITCfMkhOtE9z18= -github.com/mdlayher/vsock v1.3.0 h1:bqQfZ1OznI03y6YiXp2sze05RVdzLn/zsfjnjd4+ivI= -github.com/mdlayher/vsock v1.3.0/go.mod h1:WsuksavOvwCnV5UqGHUkvAvCy+Dqy81y4goKQTzxxNY= github.com/mfridman/tparse v0.18.0 h1:wh6dzOKaIwkUGyKgOntDW4liXSo37qg5AXbIhkMV3vE= github.com/mfridman/tparse v0.18.0/go.mod h1:gEvqZTuCgEhPbYk/2lS3Kcxg1GmTxxU7kTC8DvP0i/A= github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b/go.mod h1:01TrycV0kFyexm33Z7vhZRXopbI8J3TDReVlkTgMUxE= github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d h1:5PJl274Y63IEHC+7izoQE9x6ikvDFZS2mDVS3drnohI= github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d/go.mod h1:01TrycV0kFyexm33Z7vhZRXopbI8J3TDReVlkTgMUxE= -github.com/miekg/dns v1.1.72 h1:vhmr+TF2A3tuoGNkLDFK9zi36F2LS+hKTRW0Uf8kbzI= -github.com/miekg/dns v1.1.72/go.mod h1:+EuEPhdHOsfk6Wk5TT2CzssZdqkmFhf8r+aVyDEToIs= github.com/miekg/pkcs11 v1.1.1 h1:Ugu9pdy6vAYku5DEpVWVFPYnzV+bxB+iRdbuFSu7TvU= github.com/miekg/pkcs11 v1.1.1/go.mod h1:XsNlhZGX73bx86s2hdc/FuaLm2CPZJemRLMA+WTFxgs= github.com/moby/moby/client v0.4.1 h1:DMQgisVoMkmMs7fp3ROSdiBnoAu8+vo3GggFl06M/wY= @@ -276,10 +252,6 @@ github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee/go.mod h1:yWu github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq1c1nUAm88MOHcQC9l5mIlSMApZMrHA= github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ= github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno= -github.com/nxadm/tail v1.4.11 h1:8feyoE3OzPrcshW5/MJ4sGESc5cqmGkGCWlco4l0bqY= -github.com/nxadm/tail v1.4.11/go.mod h1:OTaG3NK980DZzxbRq6lEuzgU+mug70nY11sMd4JXXHc= -github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE= -github.com/onsi/ginkgo v1.16.5/go.mod h1:+E8gABHa3K6zRBolWtd+ROzc/U5bkGt0FwiG042wbpU= github.com/onsi/ginkgo/v2 v2.32.0 h1:Hw7s2pVrQo/8Yz5N77qdnpHaoc+c6cC9WIV1Jce+J6E= github.com/onsi/ginkgo/v2 v2.32.0/go.mod h1:+aXOY+vzZ5mu2iI2HpTZUPmM//oQfsNFX6gU9kNcA44= github.com/onsi/gomega v1.42.1 h1:iN1rCUX+44NZ1Dc97MPoeFYbFR0vh8zxoxMFwKdyZ6I= @@ -304,8 +276,6 @@ github.com/pborman/uuid v1.2.1 h1:+ZZIw58t/ozdjRaXh/3awHfmWRbzYxJoAdNJxe/3pvw= github.com/pborman/uuid v1.2.1/go.mod h1:X/NO0urCmaxf9VXbdlT7C2Yzkj2IKimNn4k+gtPdI/k= github.com/pelletier/go-toml/v2 v2.2.4 h1:mye9XuhQ6gvn5h28+VilKrrPoQVanw5PMw/TB0t5Ec4= github.com/pelletier/go-toml/v2 v2.2.4/go.mod h1:2gIqNv+qfxSVS7cM2xJQKtLSTLUE9V8t9Stt+h56mCY= -github.com/pierrec/lz4/v4 v4.1.14 h1:+fL8AQEZtz/ijeNnpduH0bROTu0O3NZAlPjQxGn8LwE= -github.com/pierrec/lz4/v4 v4.1.14/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4= github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c h1:+mdjkGKdHQG3305AYmdv1U2eRNDiU2ErMBj1gwrq8eQ= github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c/go.mod h1:7rwL4CYBLnjLxUqIJNnCWiEdr3bn6IUYi15bNlnbCCU= github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4= @@ -398,8 +368,6 @@ github.com/tklauser/go-sysconf v0.3.16 h1:frioLaCQSsF5Cy1jgRBrzr6t502KIIwQ0MArYI github.com/tklauser/go-sysconf v0.3.16/go.mod h1:/qNL9xxDhc7tx3HSRsLWNnuzbVfh3e7gh/BmM179nYI= github.com/tklauser/numcpus v0.11.0 h1:nSTwhKH5e1dMNsCdVBukSZrURJRoHbSEQjdEbY+9RXw= github.com/tklauser/numcpus v0.11.0/go.mod h1:z+LwcLq54uWZTX0u/bGobaV34u6V7KNlTZejzM6/3MQ= -github.com/u-root/uio v0.0.0-20240224005618-d2acac8f3701 h1:pyC9PaHYZFgEKFdlp3G8RaCKgVpHZnecvArXvPXcFkM= -github.com/u-root/uio v0.0.0-20240224005618-d2acac8f3701/go.mod h1:P3a5rG4X7tI17Nn3aOIAYr5HbIMukwXG0urG0WuL8OA= github.com/ulikunitz/xz v0.5.15 h1:9DNdB5s+SgV3bQ2ApL10xRc35ck0DuIX/isZvIk+ubY= github.com/ulikunitz/xz v0.5.15/go.mod h1:nbz6k7qbPmH4IRqmfOplQw/tblSgqTqBwxkY0oWt/14= github.com/vbatts/tar-split v0.12.3 h1:Cd46rkGXI3Td4yrVNwU8ripbxFaQbmesqhjBUUYAJSw= @@ -449,8 +417,6 @@ golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v golang.org/x/crypto v0.30.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk= golang.org/x/crypto v0.54.0 h1:YLIA59K4fiNzHzjnZt2tUJQjQtUWfWbeHBqKtk3eScw= golang.org/x/crypto v0.54.0/go.mod h1:KWL8ny2AZdGR2cWmzeHrp2azQPGogOv+HeQaVEXC2dk= -golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY= -golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg= golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4= @@ -497,7 +463,6 @@ golang.org/x/sys v0.0.0-20201204225414-ed752295db88/go.mod h1:h1NjWce9XRLGQEsW7w golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= -golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= @@ -535,7 +500,6 @@ golang.org/x/time v0.15.0/go.mod h1:Y4YMaQmXwGQZoFaVFk4YpCt4FLQMYKZe9oeV/f4MSno= golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= -golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28= golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA= golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc= @@ -570,15 +534,11 @@ gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc= gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw= gopkg.in/natefinch/lumberjack.v2 v2.2.1 h1:bBRl1b0OH9s/DuPhuXpNl+VtCaJXFZ5/uEFST95x9zc= gopkg.in/natefinch/lumberjack.v2 v2.2.1/go.mod h1:YD8tP3GAjkrDg1eZH7EGmyESg/lsYskCTPBJVb9jqSc= -gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ= -gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw= gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= -gvisor.dev/gvisor v0.0.0-20240916094835-a174eb65023f h1:O2w2DymsOlM/nv2pLNWCMCYOldgBBMkD7H0/prN5W2k= -gvisor.dev/gvisor v0.0.0-20240916094835-a174eb65023f/go.mod h1:sxc3Uvk/vHcd3tj7/DHVBoR5wvWT/MmRq2pj7HRJnwU= k8s.io/api v0.35.1 h1:0PO/1FhlK/EQNVK5+txc4FuhQibV25VLSdLMmGpDE/Q= k8s.io/api v0.35.1/go.mod h1:28uR9xlXWml9eT0uaGo6y71xK86JBELShLy4wR1XtxM= k8s.io/apimachinery v0.35.1 h1:yxO6gV555P1YV0SANtnTjXYfiivaTPvCTKX6w6qdDsU= @@ -591,8 +551,6 @@ k8s.io/kube-openapi v0.0.0-20250910181357-589584f1c912 h1:Y3gxNAuB0OBLImH611+UDZ k8s.io/kube-openapi v0.0.0-20250910181357-589584f1c912/go.mod h1:kdmbQkyfwUagLfXIad1y2TdrjPFWp2Q89B3qkRwf/pQ= k8s.io/utils v0.0.0-20251002143259-bc988d571ff4 h1:SjGebBtkBqHFOli+05xYbK8YF1Dzkbzn+gDM4X9T4Ck= k8s.io/utils v0.0.0-20251002143259-bc988d571ff4/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0= -libvirt.org/go/libvirtxml v1.12005.0 h1:KOxYULmLDHBR4GOd/c+8K65XtTYilVmiDPyr37mUGms= -libvirt.org/go/libvirtxml v1.12005.0/go.mod h1:7Oq2BLDstLr/XtoQD8Fr3mfDNrzlI3utYKySXF2xkng= sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730 h1:IpInykpT6ceI+QxKBbEflcR5EXP7sU1kvOlxwZh5txg= sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730/go.mod h1:mdzfpAEoE6DHQEN0uh9ZbOCuHbLK5wOm7dK4ctXE9Tg= sigs.k8s.io/randfill v1.0.0 h1:JfjMILfT8A6RbawdsK2JXGBR5AQVfd+9TbzrlneTyrU= diff --git a/pkg/crc/cache/cache.go b/pkg/crc/cache/cache.go index 6cd2cf027f..212cb47874 100644 --- a/pkg/crc/cache/cache.go +++ b/pkg/crc/cache/cache.go @@ -23,6 +23,7 @@ type Cache struct { version string ignoreNameMismatch bool getVersion func(string) (string, error) + targetName string // Optional: if set, rename the executable to this name } type VersionMismatchError struct { @@ -84,6 +85,44 @@ func NewAdminHelperCache() *Cache { ) } +func NewGvproxyCache() *Cache { + url := constants.GetGvproxyURL() + version := version.GetGvproxyVersion() + cache := newCache(constants.GvproxyPath(), + url, + version, + func(executable string) (string, error) { + out, _, err := crcos.RunWithDefaultLocale(executable, "--version") + if err != nil { + return "", err + } + // gvproxy --version output format: "gvproxy version v0.8.7" + split := strings.Split(out, " ") + return strings.TrimSpace(split[len(split)-1]), nil + }, + ) + cache.targetName = constants.GetGvproxyExecutableName() + return cache +} + +func NewMacadamCache() *Cache { + url := constants.GetMacadamURL() + version := version.GetMacadamVersion() + return newCache(constants.MacadamPath(), + url, + version, + func(executable string) (string, error) { + out, _, err := crcos.RunWithDefaultLocale(executable, "--version") + if err != nil { + return "", err + } + // macadam version output format: "macadam version v0.2.0" + split := strings.Split(out, " ") + return strings.TrimSpace(split[len(split)-1]), nil + }, + ) +} + func (c *Cache) IsCached() bool { if _, err := os.Stat(c.GetExecutablePath()); os.IsNotExist(err) { return false @@ -136,7 +175,12 @@ func (c *Cache) cacheExecutable() error { // Copy the requested asset into its final destination for _, extractedFilePath := range extractedFiles { - finalExecutablePath := filepath.Join(constants.CrcBinDir, c.GetExecutableName()) + // Use targetName if set, otherwise use the original executable name + finalName := c.GetExecutableName() + if c.targetName != "" { + finalName = c.targetName + } + finalExecutablePath := filepath.Join(constants.CrcBinDir, finalName) // If the file exists then remove it (ignore error) first before copy because with `0500` permission // it is not possible to overwrite the file. os.Remove(finalExecutablePath) diff --git a/pkg/crc/cache/cache_linux.go b/pkg/crc/cache/cache_linux.go deleted file mode 100644 index cfb623b3eb..0000000000 --- a/pkg/crc/cache/cache_linux.go +++ /dev/null @@ -1,13 +0,0 @@ -package cache - -import ( - "github.com/crc-org/crc/v2/pkg/crc/machine/libvirt" -) - -func NewMachineDriverLibvirtCache() *Cache { - return newCache(libvirt.MachineDriverPath(), libvirt.MachineDriverDownloadURL, libvirt.MachineDriverVersion, getCurrentLibvirtDriverVersion) -} - -func getCurrentLibvirtDriverVersion(executablePath string) (string, error) { - return getVersionGeneric(executablePath, "version") -} diff --git a/pkg/crc/cloudinit/cloudinit.go b/pkg/crc/cloudinit/cloudinit.go new file mode 100644 index 0000000000..f203173385 --- /dev/null +++ b/pkg/crc/cloudinit/cloudinit.go @@ -0,0 +1,106 @@ +package cloudinit + +import ( + "bytes" + "encoding/json" + "fmt" + "os" + "path/filepath" + + "github.com/crc-org/crc/v2/pkg/crc/constants" +) + +// UserDataOptions contains all the options needed to generate cloud-init user-data +type UserDataOptions struct { + PublicKey string + PullSecret string + KubeAdminPassword string + DeveloperPassword string +} + +const userDataTemplate = `#cloud-config +runcmd: + - systemctl enable --now kubelet +write_files: +- path: /home/core/.ssh/authorized_keys + content: '%s' + owner: core + permissions: '0600' +- path: /opt/crc/id_rsa.pub + content: '%s' + owner: root:root + permissions: '0644' +- path: /etc/sysconfig/crc-env + content: | + CRC_SELF_SUFFICIENT=1 + CRC_NETWORK_MODE_USER=1 + owner: root:root + permissions: '0644' +- path: /opt/crc/pull-secret + content: | + %s + permissions: '0644' +- path: /opt/crc/pass_kubeadmin + content: '%s' + permissions: '0644' +- path: /opt/crc/pass_developer + content: '%s' + permissions: '0644' +- path: /opt/crc/ocp-custom-domain.service.done + permissions: '0644' +` + +// compactJSON compacts a JSON string by removing whitespace and newlines +func compactJSON(jsonStr string) (string, error) { + var buf bytes.Buffer + if err := json.Compact(&buf, []byte(jsonStr)); err != nil { + return "", fmt.Errorf("failed to compact JSON: %w", err) + } + return buf.String(), nil +} + +// GenerateUserData generates a cloud-init user-data file and returns the path +func GenerateUserData(machineName string, opts UserDataOptions) (string, error) { + // Create the machine directory if it doesn't exist + machineDir := filepath.Dir(getUserDataPath(machineName)) + if err := os.MkdirAll(machineDir, 0o750); err != nil { + return "", fmt.Errorf("failed to create machine directory: %w", err) + } + + // Compact the pull secret JSON + compactPullSecret, err := compactJSON(opts.PullSecret) + if err != nil { + return "", fmt.Errorf("failed to compact pull secret: %w", err) + } + + // Generate the cloud-init user-data content + userData := fmt.Sprintf(userDataTemplate, + opts.PublicKey, // /home/core/.ssh/authorized_keys + opts.PublicKey, // /opt/crc/id_rsa.pub + compactPullSecret, // /opt/crc/pull-secret (compacted) + opts.KubeAdminPassword, // /opt/crc/pass_kubeadmin + opts.DeveloperPassword, // /opt/crc/pass_developer + ) + + userDataPath := getUserDataPath(machineName) + // Write the user-data file + if err := os.WriteFile(userDataPath, []byte(userData), 0o600); err != nil { + return "", fmt.Errorf("failed to write user-data file: %w", err) + } + + return userDataPath, nil +} + +// RemoveUserData removes the cloud-init user-data file for a machine +func RemoveUserData(machineName string) error { + userDataPath := filepath.Join(constants.MachineInstanceDir, machineName, "user-data") + if err := os.Remove(userDataPath); err != nil && !os.IsNotExist(err) { + return fmt.Errorf("failed to remove user-data file: %w", err) + } + return nil +} + +// getUserDataPath returns the path to the user-data file for a machine +func getUserDataPath(machineName string) string { + return filepath.Join(constants.MachineInstanceDir, machineName, "user-data") +} diff --git a/pkg/crc/cloudinit/cloudinit_test.go b/pkg/crc/cloudinit/cloudinit_test.go new file mode 100644 index 0000000000..87155d45ab --- /dev/null +++ b/pkg/crc/cloudinit/cloudinit_test.go @@ -0,0 +1,199 @@ +package cloudinit + +import ( + "os" + "path/filepath" + "testing" + + "github.com/crc-org/crc/v2/pkg/crc/constants" + "github.com/stretchr/testify/assert" + "github.com/stretchr/testify/require" +) + +func TestGenerateUserData(t *testing.T) { + // Create a temporary directory for testing + tempDir := t.TempDir() + oldMachineInstanceDir := constants.MachineInstanceDir + constants.MachineInstanceDir = tempDir + defer func() { + constants.MachineInstanceDir = oldMachineInstanceDir + }() + + opts := UserDataOptions{ //nolint:gosec + PublicKey: "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMockPublicKey test@example.com", + PullSecret: `{"auths":{"registry.redhat.io":{"auth":"mockauth"}}}`, + KubeAdminPassword: "test-kubeadmin-pass", + DeveloperPassword: "test-developer-pass", + } + + userDataPath, err := GenerateUserData("test-machine", opts) + require.NoError(t, err) + + // Verify the file was created + assert.FileExists(t, userDataPath) + + // Read and verify the content + content, err := os.ReadFile(userDataPath) + require.NoError(t, err) + + contentStr := string(content) + + // Verify cloud-config header + assert.Contains(t, contentStr, "#cloud-config") + + // Verify runcmd section + assert.Contains(t, contentStr, "runcmd:") + assert.Contains(t, contentStr, "systemctl enable --now kubelet") + + // Verify SSH key is present + assert.Contains(t, contentStr, opts.PublicKey) + assert.Contains(t, contentStr, "/home/core/.ssh/authorized_keys") + + // Verify pull secret + assert.Contains(t, contentStr, opts.PullSecret) + assert.Contains(t, contentStr, "/opt/crc/pull-secret") + + // Verify passwords + assert.Contains(t, contentStr, opts.KubeAdminPassword) + assert.Contains(t, contentStr, opts.DeveloperPassword) + + // Verify CRC environment variables + assert.Contains(t, contentStr, "CRC_SELF_SUFFICIENT=1") + assert.Contains(t, contentStr, "CRC_NETWORK_MODE_USER=1") + + // Verify file paths + assert.Contains(t, contentStr, "/etc/sysconfig/crc-env") + assert.Contains(t, contentStr, "/opt/crc/pass_kubeadmin") + assert.Contains(t, contentStr, "/opt/crc/pass_developer") +} + +func TestGetUserDataPath(t *testing.T) { + tempDir := t.TempDir() + oldMachineInstanceDir := constants.MachineInstanceDir + constants.MachineInstanceDir = tempDir + defer func() { + constants.MachineInstanceDir = oldMachineInstanceDir + }() + + path := getUserDataPath("test-machine") + expectedPath := filepath.Join(tempDir, "test-machine", "user-data") + assert.Equal(t, expectedPath, path) +} + +func TestRemoveUserData(t *testing.T) { + tempDir := t.TempDir() + oldMachineInstanceDir := constants.MachineInstanceDir + constants.MachineInstanceDir = tempDir + defer func() { + constants.MachineInstanceDir = oldMachineInstanceDir + }() + + // Create a user-data file + opts := UserDataOptions{ //nolint:gosec + PublicKey: "test-key", + PullSecret: `{"auths":{"test.io":{"auth":"testauth"}}}`, + KubeAdminPassword: "test-kubeadmin", + DeveloperPassword: "test-developer", + } + + userDataPath, err := GenerateUserData("test-machine", opts) + require.NoError(t, err) + assert.FileExists(t, userDataPath) + + // Remove the file + err = RemoveUserData("test-machine") + require.NoError(t, err) + assert.NoFileExists(t, userDataPath) + + // Removing non-existent file should not error + err = RemoveUserData("non-existent-machine") + assert.NoError(t, err) +} + +func TestGenerateUserDataMultilineContent(t *testing.T) { + tempDir := t.TempDir() + oldMachineInstanceDir := constants.MachineInstanceDir + constants.MachineInstanceDir = tempDir + defer func() { + constants.MachineInstanceDir = oldMachineInstanceDir + }() + + opts := UserDataOptions{ //nolint:gosec + PublicKey: "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMockPublicKey test@example.com", + PullSecret: `{ + "auths": { + "registry.redhat.io": { + "auth": "mockauth" + } + } +}`, + KubeAdminPassword: "test-kubeadmin-pass", + DeveloperPassword: "test-developer-pass", + } + + userDataPath, err := GenerateUserData("test-machine", opts) + require.NoError(t, err) + + content, err := os.ReadFile(userDataPath) + require.NoError(t, err) + + // Verify pull secret is compacted (no newlines or extra spaces) + contentStr := string(content) + assert.Contains(t, contentStr, "registry.redhat.io") + // Should be compacted, not the original multiline format + assert.Contains(t, contentStr, `{"auths":{"registry.redhat.io":{"auth":"mockauth"}}}`) + // Should NOT contain the multiline version with spaces + assert.NotContains(t, contentStr, " \"auths\"") +} + +func TestCompactJSON(t *testing.T) { + tests := []struct { + name string + input string + expected string + wantErr bool + }{ + { + name: "multiline JSON", + input: `{ + "auths": { + "registry.redhat.io": { + "auth": "mockauth" + } + } +}`, + expected: `{"auths":{"registry.redhat.io":{"auth":"mockauth"}}}`, + wantErr: false, + }, + { + name: "already compact JSON", + input: `{"auths":{"registry.redhat.io":{"auth":"mockauth"}}}`, + expected: `{"auths":{"registry.redhat.io":{"auth":"mockauth"}}}`, + wantErr: false, + }, + { + name: "invalid JSON", + input: `{invalid json}`, + expected: "", + wantErr: true, + }, + { + name: "empty object", + input: `{}`, + expected: `{}`, + wantErr: false, + }, + } + + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + result, err := compactJSON(tt.input) + if tt.wantErr { + assert.Error(t, err) + } else { + require.NoError(t, err) + assert.Equal(t, tt.expected, result) + } + }) + } +} diff --git a/pkg/crc/cluster/cluster.go b/pkg/crc/cluster/cluster.go index c5dd74f97f..a452ebbf8b 100644 --- a/pkg/crc/cluster/cluster.go +++ b/pkg/crc/cluster/cluster.go @@ -2,7 +2,6 @@ package cluster import ( "context" - "crypto/x509" "encoding/base64" "encoding/json" "fmt" @@ -17,13 +16,13 @@ import ( "go.podman.io/common/pkg/strongunits" - "github.com/crc-org/crc/v2/pkg/crc/constants" "github.com/crc-org/crc/v2/pkg/crc/errors" "github.com/crc-org/crc/v2/pkg/crc/logging" "github.com/crc-org/crc/v2/pkg/crc/network/httpproxy" "github.com/crc-org/crc/v2/pkg/crc/oc" "github.com/crc-org/crc/v2/pkg/crc/ssh" - crctls "github.com/crc-org/crc/v2/pkg/crc/tls" + "github.com/crc-org/crc/v2/pkg/crc/systemd" + "github.com/crc-org/crc/v2/pkg/crc/systemd/states" "github.com/crc-org/crc/v2/pkg/crc/validation" crcstrings "github.com/crc-org/crc/v2/pkg/strings" "github.com/pborman/uuid" @@ -184,7 +183,71 @@ func EnsureSSHKeyPresentInTheCluster(ctx context.Context, ocConfig oc.Config, ss return nil } -func EnsurePullSecretPresentInTheCluster(ctx context.Context, ocConfig oc.Config, pullSec PullSecretLoader) error { +// WaitForServiceSuccessfullyFinished waits for a systemd service to: +// 1. Run (verified by checking ExecMainExitTimestamp changes) +// 2. Finish (transition to Stopped state) +// 3. Exit with Result=success +// It also handles services that are skipped due to unmet conditions (e.g., ConditionPathExists). +// When a service is skipped, its work was already done in a previous run. +func WaitForServiceSuccessfullyFinished(ctx context.Context, systemdRunner *systemd.Commander, + serviceName string, timeout, retryInterval time.Duration) error { + return errors.Retry(ctx, timeout, func() error { + state, err := systemdRunner.Status(serviceName) + if err != nil { + return &errors.RetriableError{Err: err} + } + logging.Debugf("Service %s is in state %s", serviceName, state) + + if state != states.Stopped { + return &errors.RetriableError{Err: fmt.Errorf("service %s has not finished yet, current state: %s", serviceName, state)} + } + + // Service is stopped, check if it ran by verifying timestamp changed + currentExecMainExitTimestamp, err := systemdRunner.ExecMainExitTimestamp(serviceName) + if err != nil { + return &errors.RetriableError{Err: err} + } + logging.Debugf("Service %s current ExecMainExitTimestamp: '%s'", serviceName, currentExecMainExitTimestamp) + + if currentExecMainExitTimestamp == "" { + // No exit timestamp means service didn't run. Check if it was skipped due to conditions. + // This can happen after system restart when ConditionPathExists marks work as already done. + wasSkipped, err := systemdRunner.WasSkippedDueToConditions(serviceName) + if err != nil { + return &errors.RetriableError{Err: err} + } + logging.Debugf("Service %s was skipped due to conditions: %v", serviceName, wasSkipped) + + if wasSkipped { + // Service was skipped because conditions weren't met (e.g., .done file exists). + // This means the work was already completed in a previous run. + logging.Debugf("Service %s was skipped due to unmet conditions (work already done)", serviceName) + return nil + } + + return &errors.RetriableError{Err: fmt.Errorf("service %s has not run yet (no exit timestamp)", serviceName)} + } + + // Service has run and finished, now check if it succeeded + result, err := systemdRunner.Result(serviceName) + logging.Debugf("Service %s result is %s", serviceName, result) + if err != nil { + return &errors.RetriableError{Err: err} + } + if !result.IsSuccess() { + return fmt.Errorf("service %s finished with result: %s (expected success)", serviceName, result) + } + + logging.Debugf("Service %s finished successfully", serviceName) + return nil + }, retryInterval) +} + +func EnsurePullSecretPresentInTheCluster(ctx context.Context, systemdRunner *systemd.Commander, ocConfig oc.Config, pullSec PullSecretLoader) error { + // Wait for the service to finish successfully (30 seconds timeout, check every 2 seconds) + if err := WaitForServiceSuccessfullyFinished(ctx, systemdRunner, "crc-pullsecret.service", 30*time.Second, 2*time.Second); err != nil { + return err + } if err := WaitForOpenshiftResource(ctx, ocConfig, "secret"); err != nil { return err } @@ -200,54 +263,6 @@ func EnsurePullSecretPresentInTheCluster(ctx context.Context, ocConfig oc.Config if err := validation.ImagePullSecret(string(decoded)); err == nil { return nil } - - logging.Info("Adding user's pull secret to the cluster...") - content, err := pullSec.Value() - if err != nil { - return err - } - base64OfPullSec := base64.StdEncoding.EncodeToString([]byte(content)) - cmdArgs := []string{"patch", "secret", "pull-secret", "-p", - fmt.Sprintf(`'{"data":{".dockerconfigjson":"%s"}}'`, base64OfPullSec), - "-n", "openshift-config", "--type", "merge"} - - _, stderr, err = ocConfig.RunOcCommandPrivate(cmdArgs...) - if err != nil { - return fmt.Errorf("failed to add pull secret: %s: %w", stderr, err) - } - return nil -} - -func EnsureGeneratedClientCAPresentInTheCluster(ctx context.Context, ocConfig oc.Config, sshRunner *ssh.Runner, selfSignedCACert *x509.Certificate, adminCert string) error { - selfSignedCAPem := crctls.CertToPem(selfSignedCACert) - if err := WaitForOpenshiftResource(ctx, ocConfig, "configmaps"); err != nil { - return err - } - clusterClientCA, stderr, err := ocConfig.RunOcCommand("get", "configmaps", "admin-kubeconfig-client-ca", "-n", "openshift-config", "-o", `jsonpath="{.data.ca-bundle\.crt}"`) - if err != nil { - return fmt.Errorf("failed to get config map: %s: %w", stderr, err) - } - - ok, err := crctls.VerifyCertificateAgainstRootCA(clusterClientCA, adminCert) - if err != nil { - return err - } - if ok { - return nil - } - - logging.Info("Updating root CA cert to admin-kubeconfig-client-ca configmap...") - jsonPath := fmt.Sprintf(`'{"data": {"ca-bundle.crt": %q}}'`, selfSignedCAPem) - cmdArgs := []string{"patch", "configmap", "admin-kubeconfig-client-ca", - "-n", "openshift-config", "--patch", jsonPath} - _, stderr, err = ocConfig.RunOcCommand(cmdArgs...) - if err != nil { - return fmt.Errorf("failed to patch admin-kubeconfig-client-ca config map with new CA: %s: %w", stderr, err) - } - if err := sshRunner.CopyFile(constants.KubeconfigFilePath, ocConfig.KubeconfigPath, 0644); err != nil { - return fmt.Errorf("failed to copy generated kubeconfig file to VM: %w", err) - } - return nil } @@ -324,7 +339,10 @@ func RemoveOldRenderedMachineConfig(ocConfig oc.Config) error { return nil } -func EnsureClusterIDIsNotEmpty(ctx context.Context, ocConfig oc.Config) error { +func EnsureClusterIDIsNotEmpty(ctx context.Context, systemdRunner *systemd.Commander, ocConfig oc.Config) error { + if err := WaitForServiceSuccessfullyFinished(ctx, systemdRunner, "ocp-clusterid.service", 30*time.Second, 2*time.Second); err != nil { + return err + } if err := WaitForOpenshiftResource(ctx, ocConfig, "clusterversion"); err != nil { return err } diff --git a/pkg/crc/cluster/hostsapi_token.go b/pkg/crc/cluster/hostsapi_token.go new file mode 100644 index 0000000000..ef1046538f --- /dev/null +++ b/pkg/crc/cluster/hostsapi_token.go @@ -0,0 +1,56 @@ +package cluster + +import ( + "context" + "fmt" + + "github.com/crc-org/crc/v2/pkg/crc/hostsapi" + k8sapi "k8s.io/api/core/v1" + apierrors "k8s.io/apimachinery/pkg/api/errors" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" +) + +// EnsureHostsAPITokenSecret creates or updates the Secret that routes-controller +// mounts as CRC_HOSTS_API_TOKEN. +func EnsureHostsAPITokenSecret(ctx context.Context, ip, kubeconfigFilePath, token string) error { + if token == "" { + return fmt.Errorf("hosts API token must not be empty") + } + + client, err := kubernetesClient(ip, kubeconfigFilePath) + if err != nil { + return err + } + + secrets := client.CoreV1().Secrets(hostsapi.SecretNamespace) + desired := &k8sapi.Secret{ + ObjectMeta: metav1.ObjectMeta{ + Name: hostsapi.SecretName, + Namespace: hostsapi.SecretNamespace, + }, + Type: k8sapi.SecretTypeOpaque, + Data: map[string][]byte{ + hostsapi.SecretKey: []byte(token), + }, + } + + _, err = secrets.Create(ctx, desired, metav1.CreateOptions{}) + if err == nil { + return nil + } + if !apierrors.IsAlreadyExists(err) { + return fmt.Errorf("creating hosts API token secret: %w", err) + } + + existing, err := secrets.Get(ctx, hostsapi.SecretName, metav1.GetOptions{}) + if err != nil { + return fmt.Errorf("getting hosts API token secret: %w", err) + } + existing.Data = desired.Data + existing.Type = desired.Type + _, err = secrets.Update(ctx, existing, metav1.UpdateOptions{}) + if err != nil { + return fmt.Errorf("updating hosts API token secret: %w", err) + } + return nil +} diff --git a/pkg/crc/constants/constants.go b/pkg/crc/constants/constants.go index 4131bbfbaa..227c8c1cff 100644 --- a/pkg/crc/constants/constants.go +++ b/pkg/crc/constants/constants.go @@ -28,8 +28,11 @@ const ( LogFile = "crc.log" DaemonLogFile = "crcd.log" AdminHelperLogFile = "admin-helper.log" + HostsAPITokenFile = "hosts-api.token" CrcLandingPageURL = "https://console.redhat.com/openshift/create/local" // #nosec G101 DefaultAdminHelperURLBase = "https://github.com/crc-org/admin-helper/releases/download/v%s/%s" + DefaultGvproxyURLBase = "https://github.com/containers/gvisor-tap-vsock/releases/download/%s/%s" + DefaultMacadamURLBase = "https://github.com/crc-org/macadam/releases/download/%s/%s" BackgroundLauncherURL = "https://github.com/crc-org/win32-background-launcher/releases/download/v%s/win32-background-launcher.exe" DefaultBundleURLBase = "https://mirror.openshift.com/pub/openshift-v4/clients/crc/bundles/%s/%s/%s" DefaultContext = "admin" @@ -105,6 +108,42 @@ func GetAdminHelperURL() string { return GetAdminHelperURLForOs(runtime.GOOS) } +var gvproxyExecutableForOs = map[string]string{ + "darwin": "gvproxy-darwin", + "linux": fmt.Sprintf("gvproxy-linux-%s", runtime.GOARCH), + "windows": "gvproxy-windows.exe", +} + +func GetGvproxyExecutableForOs(os string) string { + return gvproxyExecutableForOs[os] +} + +func GetGvproxyURLForOs(os string) string { + return fmt.Sprintf(DefaultGvproxyURLBase, version.GetGvproxyVersion(), GetGvproxyExecutableForOs(os)) +} + +func GetGvproxyURL() string { + return GetGvproxyURLForOs(runtime.GOOS) +} + +var macadamExecutableForOs = map[string]string{ + "darwin": "macadam-darwin-universal", + "linux": fmt.Sprintf("macadam-linux-%s", runtime.GOARCH), + "windows": fmt.Sprintf("macadam-windows-%s.exe", runtime.GOARCH), +} + +func GetMacadamExecutableForOs(os string) string { + return macadamExecutableForOs[os] +} + +func GetMacadamURLForOs(os string) string { + return fmt.Sprintf(DefaultMacadamURLBase, version.GetMacadamVersion(), GetMacadamExecutableForOs(os)) +} + +func GetMacadamURL() string { + return GetMacadamURLForOs(runtime.GOOS) +} + func BundleForPreset(preset crcpreset.Preset, version string) string { var bundleName strings.Builder @@ -144,6 +183,7 @@ var ( LogFilePath = filepath.Join(CrcBaseDir, LogFile) DaemonLogFilePath = filepath.Join(CrcBaseDir, DaemonLogFile) AdminHelperLogFilePath = filepath.Join(CrcBaseDir, AdminHelperLogFile) + HostsAPITokenPath = filepath.Join(CrcBaseDir, HostsAPITokenFile) MachineBaseDir = CrcBaseDir MachineCacheDir = filepath.Join(MachineBaseDir, "cache") MachineInstanceDir = filepath.Join(MachineBaseDir, "machines") @@ -184,6 +224,22 @@ func AdminHelperPath() string { return ResolveHelperPath(GetAdminHelperExecutableForOs(runtime.GOOS)) } +func GetGvproxyExecutableName() string { + if runtime.GOOS == "windows" { + return "gvproxy.exe" + } + return "gvproxy" +} + +func GvproxyPath() string { + // gvproxy is renamed to just "gvproxy" (or "gvproxy.exe" on Windows) for macadam compatibility + return ResolveHelperPath(GetGvproxyExecutableName()) +} + +func MacadamPath() string { + return ResolveHelperPath(GetMacadamExecutableForOs(runtime.GOOS)) +} + func Win32BackgroundLauncherPath() string { return ResolveHelperPath(BackgroundLauncherExecutable) } diff --git a/pkg/crc/hostsapi/token.go b/pkg/crc/hostsapi/token.go new file mode 100644 index 0000000000..5dfe13eeeb --- /dev/null +++ b/pkg/crc/hostsapi/token.go @@ -0,0 +1,75 @@ +package hostsapi + +import ( + "crypto/rand" + "crypto/subtle" + "encoding/hex" + "fmt" + "os" + "path/filepath" + "strings" +) + +const ( + // EnvVar is the environment variable routes-controller should send as a Bearer token. + EnvVar = "CRC_HOSTS_API_TOKEN" + // SecretName is the Kubernetes Secret holding the hosts API token. + SecretName = "crc-hosts-api-token" // nolint:gosec + // SecretKey is the key inside SecretName. + SecretKey = "CRC_HOSTS_API_TOKEN" // nolint:gosec + // SecretNamespace is where routes-controller runs. + SecretNamespace = "openshift-ingress" + + bearerPrefix = "Bearer " + tokenBytes = 32 +) + +// LoadOrCreateToken returns the hosts API token from path, creating it if missing. +func LoadOrCreateToken(path string) (string, error) { + data, err := os.ReadFile(path) + if err == nil { + token := strings.TrimSpace(string(data)) + if token == "" { + return "", fmt.Errorf("hosts API token file %q is empty", path) + } + return token, nil + } + if !os.IsNotExist(err) { + return "", fmt.Errorf("reading hosts API token: %w", err) + } + + token, err := generateToken() + if err != nil { + return "", err + } + if err := os.MkdirAll(filepath.Dir(path), 0o700); err != nil { + return "", fmt.Errorf("creating hosts API token directory: %w", err) + } + if err := os.WriteFile(path, []byte(token+"\n"), 0o600); err != nil { + return "", fmt.Errorf("writing hosts API token: %w", err) + } + return token, nil +} + +// BearerTokenAuthorized reports whether Authorization header carries the expected Bearer token. +func BearerTokenAuthorized(authorizationHeader, expectedToken string) bool { + if expectedToken == "" { + return false + } + if !strings.HasPrefix(authorizationHeader, bearerPrefix) { + return false + } + got := strings.TrimPrefix(authorizationHeader, bearerPrefix) + if len(got) != len(expectedToken) { + return false + } + return subtle.ConstantTimeCompare([]byte(got), []byte(expectedToken)) == 1 +} + +func generateToken() (string, error) { + buf := make([]byte, tokenBytes) + if _, err := rand.Read(buf); err != nil { + return "", fmt.Errorf("generating hosts API token: %w", err) + } + return hex.EncodeToString(buf), nil +} diff --git a/pkg/crc/hostsapi/token_test.go b/pkg/crc/hostsapi/token_test.go new file mode 100644 index 0000000000..96dc201207 --- /dev/null +++ b/pkg/crc/hostsapi/token_test.go @@ -0,0 +1,36 @@ +package hostsapi + +import ( + "os" + "path/filepath" + "testing" + + "github.com/stretchr/testify/assert" + "github.com/stretchr/testify/require" +) + +func TestLoadOrCreateToken_CreatesAndReuses(t *testing.T) { + dir := t.TempDir() + path := filepath.Join(dir, "hosts-api.token") + + token1, err := LoadOrCreateToken(path) + require.NoError(t, err) + assert.Len(t, token1, tokenBytes*2) + + info, err := os.Stat(path) + require.NoError(t, err) + assert.Equal(t, os.FileMode(0o600), info.Mode().Perm()) + + token2, err := LoadOrCreateToken(path) + require.NoError(t, err) + assert.Equal(t, token1, token2) +} + +func TestBearerTokenAuthorized(t *testing.T) { + assert.False(t, BearerTokenAuthorized("", "secret")) + assert.False(t, BearerTokenAuthorized("Bearer ", "secret")) + assert.False(t, BearerTokenAuthorized("Bearer wrong", "secret")) + assert.False(t, BearerTokenAuthorized("secret", "secret")) + assert.False(t, BearerTokenAuthorized("Bearer secret", "")) + assert.True(t, BearerTokenAuthorized("Bearer secret", "secret")) +} diff --git a/pkg/crc/macadam/macadam.go b/pkg/crc/macadam/macadam.go new file mode 100644 index 0000000000..631d7deb41 --- /dev/null +++ b/pkg/crc/macadam/macadam.go @@ -0,0 +1,216 @@ +package macadam + +import ( + "encoding/json" + "fmt" + "os" + "runtime" + + "github.com/crc-org/crc/v2/pkg/crc/constants" + crcos "github.com/crc-org/crc/v2/pkg/os" +) + +type Config struct { + Runner crcos.CommandRunner + MacadamExecutablePath string + Env map[string]string +} + +// VMOptions contains all the options for initializing a VM +type VMOptions struct { + DiskImagePath string + DiskSize uint64 + Memory uint64 + Name string + Username string + SSHIdentityPath string + CPUs uint64 + CloudInitPath string +} + +// UseMacadam returns the macadam executable configuration +func UseMacadam() Config { + env := make(map[string]string) + // Set default environment variables for macadam + env["CONTAINERS_HELPER_BINARY_DIR"] = constants.CrcBinDir + + return Config{ + Runner: crcos.NewLocalCommandRunner(), + MacadamExecutablePath: constants.MacadamPath(), + Env: env, + } +} + +// WithEnv sets environment variables for the macadam command +func (m Config) WithEnv(env map[string]string) Config { + return Config{ + Runner: m.Runner, + MacadamExecutablePath: m.MacadamExecutablePath, + Env: env, + } +} + +// SetEnv sets a single environment variable +func (m Config) SetEnv(key, value string) Config { + newEnv := make(map[string]string) + for k, v := range m.Env { + newEnv[k] = v + } + newEnv[key] = value + return Config{ + Runner: m.Runner, + MacadamExecutablePath: m.MacadamExecutablePath, + Env: newEnv, + } +} + +func (m Config) runCommand(isPrivate bool, args ...string) (string, string, error) { + // Set environment variables and save old values for restoration + oldEnv := make(map[string]string) + for key, value := range m.Env { + if oldValue, exists := os.LookupEnv(key); exists { + oldEnv[key] = oldValue + } + os.Setenv(key, value) + } + + // Restore environment variables after command execution + defer func() { + for key := range m.Env { + if oldValue, exists := oldEnv[key]; exists { + os.Setenv(key, oldValue) + } else { + os.Unsetenv(key) + } + } + }() + + if isPrivate { + return m.Runner.RunPrivate(m.MacadamExecutablePath, args...) + } + + return m.Runner.Run(m.MacadamExecutablePath, args...) +} + +func (m Config) RunMacadamCommand(args ...string) (string, string, error) { + if runtime.GOOS == "windows" { + args = append(args, []string{"--provider", "hyperv"}...) + } + return m.runCommand(false, args...) +} + +func (m Config) RunMacadamCommandPrivate(args ...string) (string, string, error) { + if runtime.GOOS == "windows" { + args = append(args, []string{"--provider", "hyperv"}...) + } + return m.runCommand(true, args...) +} + +// InitVM initializes a VM using macadam init +func (m Config) InitVM(opts VMOptions) (string, string, error) { + args := []string{ + "init", + opts.DiskImagePath, + "--disk-size", fmt.Sprintf("%d", opts.DiskSize), + "--memory", fmt.Sprintf("%d", opts.Memory), + "--name", opts.Name, + "--username", opts.Username, + "--ssh-identity-path", opts.SSHIdentityPath, + "--cpus", fmt.Sprintf("%d", opts.CPUs), + "--cloud-init", opts.CloudInitPath, + } + if runtime.GOOS == "windows" { + args = append(args, "--user-mode-networking") + } + return m.RunMacadamCommand(args...) +} + +// StartVM starts a VM using macadam +func (m Config) StartVM(vmName string) (string, string, error) { + return m.RunMacadamCommand("start", vmName) +} + +// StopVM stops a VM using macadam +func (m Config) StopVM(vmName string) (string, string, error) { + return m.RunMacadamCommand("stop", vmName) +} + +// DeleteVM deletes a VM using macadam +func (m Config) DeleteVM(vmName string) (string, string, error) { + return m.RunMacadamCommand("rm", "--force", vmName) +} + +// ListVMs lists all VMs +func (m Config) ListVMs() (string, string, error) { + return m.RunMacadamCommand("list") +} + +// VMInspectInfo represents the structure returned by macadam inspect +type VMInspectInfo struct { + ConfigDir struct { + Path string `json:"Path"` + } `json:"ConfigDir"` + Created string `json:"Created"` + Name string `json:"Name"` + Resources struct { + CPUs int `json:"CPUs"` + DiskSize int `json:"DiskSize"` + Memory int `json:"Memory"` + USBs []any `json:"USBs"` + } `json:"Resources"` + SSHConfig struct { + IdentityPath string `json:"IdentityPath"` + Port int `json:"Port"` + RemoteUsername string `json:"RemoteUsername"` + } `json:"SSHConfig"` + State string `json:"State"` + UserModeNetworking bool `json:"UserModeNetworking"` + Services struct { + GVProxy struct { + ServiceSocket struct { + Path string `json:"Path"` + } `json:"ServiceSocket"` + } `json:"GVProxy"` + } `json:"Services"` +} + +// InspectVM inspects a VM and returns its information +func (m Config) InspectVM(vmName string) (*VMInspectInfo, error) { + stdout, stderr, err := m.RunMacadamCommand("inspect", vmName) + if err != nil { + return nil, fmt.Errorf("failed to inspect VM: %w (stderr: %s)", err, stderr) + } + + var vms []VMInspectInfo + if err := json.Unmarshal([]byte(stdout), &vms); err != nil { + return nil, fmt.Errorf("failed to parse inspect output: %w", err) + } + + if len(vms) == 0 { + return nil, fmt.Errorf("no VM information returned") + } + + return &vms[0], nil +} + +// GetVMStatus gets the status of a VM by inspecting it +func (m Config) GetVMStatus(vmName string) (string, error) { + vmInfo, err := m.InspectVM(vmName) + if err != nil { + return "", err + } + return vmInfo.State, nil +} + +// GetGVProxySocketPath returns the gvproxy socket path for a VM +func (m Config) GetGVProxySocketPath(vmName string) (string, error) { + vmInfo, err := m.InspectVM(vmName) + if err != nil { + return "", err + } + socketPath := vmInfo.Services.GVProxy.ServiceSocket.Path + if socketPath == "" { + return "", fmt.Errorf("gvproxy socket path not found in VM info") + } + return socketPath, nil +} diff --git a/pkg/crc/macadam/macadam_test.go b/pkg/crc/macadam/macadam_test.go new file mode 100644 index 0000000000..90448bb5d9 --- /dev/null +++ b/pkg/crc/macadam/macadam_test.go @@ -0,0 +1,72 @@ +package macadam + +import ( + "testing" + + "github.com/crc-org/crc/v2/pkg/crc/constants" + "github.com/stretchr/testify/assert" +) + +func TestUseMacadam(t *testing.T) { + config := UseMacadam() + assert.NotNil(t, config.Runner) + assert.Equal(t, constants.MacadamPath(), config.MacadamExecutablePath) + assert.NotNil(t, config.Env) + assert.Equal(t, 1, len(config.Env)) +} + +func TestSetEnv(t *testing.T) { + config := UseMacadam() + configWithEnv := config.SetEnv("TEST_VAR", "test_value") + + assert.Equal(t, 2, len(configWithEnv.Env)) + assert.Equal(t, "test_value", configWithEnv.Env["TEST_VAR"]) + + // Original config should be unchanged + assert.Equal(t, 1, len(config.Env)) +} + +func TestWithEnv(t *testing.T) { + config := UseMacadam() + env := map[string]string{ + "VAR1": "value1", + "VAR2": "value2", + } + + configWithEnv := config.WithEnv(env) + + assert.Equal(t, 2, len(configWithEnv.Env)) + assert.Equal(t, "value1", configWithEnv.Env["VAR1"]) + assert.Equal(t, "value2", configWithEnv.Env["VAR2"]) +} + +func TestSetEnvChaining(t *testing.T) { + config := UseMacadam() + configWithEnv := config.SetEnv("VAR1", "value1").SetEnv("VAR2", "value2") + + assert.Equal(t, 3, len(configWithEnv.Env)) + assert.Equal(t, "value1", configWithEnv.Env["VAR1"]) + assert.Equal(t, "value2", configWithEnv.Env["VAR2"]) +} + +func TestVMOptions(t *testing.T) { + opts := VMOptions{ + DiskImagePath: "/path/to/disk.qcow2", + DiskSize: uint64(31), + Memory: uint64(11264), + Name: "crc-ng", + Username: "core", + SSHIdentityPath: "/path/to/id_rsa", + CPUs: uint64(6), + CloudInitPath: "/path/to/cloud-init.yaml", + } + + assert.Equal(t, "/path/to/disk.qcow2", opts.DiskImagePath) + assert.Equal(t, uint64(31), opts.DiskSize) + assert.Equal(t, uint64(11264), opts.Memory) + assert.Equal(t, "crc-ng", opts.Name) + assert.Equal(t, "core", opts.Username) + assert.Equal(t, "/path/to/id_rsa", opts.SSHIdentityPath) + assert.Equal(t, uint64(6), opts.CPUs) + assert.Equal(t, "/path/to/cloud-init.yaml", opts.CloudInitPath) +} diff --git a/pkg/crc/machine/delete.go b/pkg/crc/machine/delete.go index 148b051bdc..451762da3a 100644 --- a/pkg/crc/machine/delete.go +++ b/pkg/crc/machine/delete.go @@ -9,23 +9,12 @@ import ( ) func (client *client) Delete() error { - vm, err := loadVirtualMachine(client.name, client.useVSock()) - if err != nil && !errors.Is(err, errInvalidBundleMetadata) { - return errors.Wrap(err, "Cannot load machine") - } - defer vm.Close() - - if err := vm.Remove(); err != nil { + m := getMacadamClient() + _, _, err := m.DeleteVM(client.name) + if err != nil { return errors.Wrap(err, "Cannot remove machine") } - // In case usermode networking make sure all the port bind on host should be released - if client.useVSock() { - if err := unexposePorts(); err != nil { - return err - } - } - if err := cleanKubeconfig(getGlobalKubeConfigPath(), getGlobalKubeConfigPath()); err != nil { if !errors.Is(err, os.ErrNotExist) { logging.Warnf("Failed to remove crc contexts from kubeconfig: %v", err) diff --git a/pkg/crc/machine/driver.go b/pkg/crc/machine/driver.go deleted file mode 100644 index 150bef13cf..0000000000 --- a/pkg/crc/machine/driver.go +++ /dev/null @@ -1,59 +0,0 @@ -package machine - -import ( - "github.com/crc-org/crc/v2/pkg/libmachine/host" - libmachine "github.com/crc-org/machine/libmachine/drivers" - "go.podman.io/common/pkg/strongunits" -) - -type valueSetter func(driver *libmachine.VMDriver) bool - -func updateDriverValue(host *host.Host, setDriverValue valueSetter) error { - driver, err := loadDriverConfig(host) - if err != nil { - return err - } - valueChanged := setDriverValue(driver.VMDriver) - if !valueChanged { - return nil - } - - return updateDriverConfig(host, driver) -} - -func setMemory(host *host.Host, memorySize strongunits.MiB) error { - memorySetter := func(driver *libmachine.VMDriver) bool { - if driver.Memory == uint(memorySize) { - return false - } - driver.Memory = uint(memorySize) - return true - } - - return updateDriverValue(host, memorySetter) -} - -func setVcpus(host *host.Host, vcpus uint) error { - vcpuSetter := func(driver *libmachine.VMDriver) bool { - if driver.CPU == vcpus { - return false - } - driver.CPU = vcpus - return true - } - - return updateDriverValue(host, vcpuSetter) -} - -func setDiskSize(host *host.Host, diskSize strongunits.GiB) error { - diskSizeSetter := func(driver *libmachine.VMDriver) bool { - capacity := diskSize.ToBytes() - if driver.DiskCapacity == uint64(capacity) { - return false - } - driver.DiskCapacity = uint64(capacity) - return true - } - - return updateDriverValue(host, diskSizeSetter) -} diff --git a/pkg/crc/machine/driver_darwin.go b/pkg/crc/machine/driver_darwin.go deleted file mode 100644 index 30ff1617f1..0000000000 --- a/pkg/crc/machine/driver_darwin.go +++ /dev/null @@ -1,36 +0,0 @@ -package machine - -import ( - "encoding/json" - "errors" - - "github.com/crc-org/crc/v2/pkg/crc/machine/config" - "github.com/crc-org/crc/v2/pkg/crc/machine/vfkit" - machineVf "github.com/crc-org/crc/v2/pkg/drivers/vfkit" - "github.com/crc-org/crc/v2/pkg/libmachine" - "github.com/crc-org/crc/v2/pkg/libmachine/host" -) - -func newHost(api libmachine.API, machineConfig config.MachineConfig) (*host.Host, error) { - json, err := json.Marshal(vfkit.CreateHost(machineConfig)) - if err != nil { - return nil, errors.New("Failed to marshal driver options") - } - return api.NewHost("vf", "", json) -} - -func loadDriverConfig(host *host.Host) (*machineVf.Driver, error) { - var vfDriver machineVf.Driver - err := json.Unmarshal(host.RawDriver, &vfDriver) - - return &vfDriver, err -} - -func updateDriverConfig(host *host.Host, driver *machineVf.Driver) error { - driverData, err := json.Marshal(driver) - if err != nil { - return err - } - - return host.UpdateConfig(driverData) -} diff --git a/pkg/crc/machine/driver_linux.go b/pkg/crc/machine/driver_linux.go deleted file mode 100644 index a6d43f0303..0000000000 --- a/pkg/crc/machine/driver_linux.go +++ /dev/null @@ -1,45 +0,0 @@ -package machine - -import ( - "encoding/json" - "errors" - "path/filepath" - - "github.com/crc-org/crc/v2/pkg/crc/machine/config" - "github.com/crc-org/crc/v2/pkg/crc/machine/libvirt" - "github.com/crc-org/crc/v2/pkg/libmachine" - "github.com/crc-org/crc/v2/pkg/libmachine/host" - machineLibvirt "github.com/crc-org/machine/drivers/libvirt" -) - -func newHost(api libmachine.API, machineConfig config.MachineConfig) (*host.Host, error) { - json, err := json.Marshal(libvirt.CreateHost(machineConfig)) - if err != nil { - return nil, errors.New("Failed to marshal driver options") - } - return api.NewHost("libvirt", filepath.Dir(libvirt.MachineDriverPath()), json) -} - -/* FIXME: host.Host is only known here, and libvirt.Driver is only accessible - * in libvirt/driver_linux.go - */ -func loadDriverConfig(host *host.Host) (*machineLibvirt.Driver, error) { - var libvirtDriver machineLibvirt.Driver - err := json.Unmarshal(host.RawDriver, &libvirtDriver) - - return &libvirtDriver, err -} - -func updateDriverConfig(host *host.Host, driver *machineLibvirt.Driver) error { - driverData, err := json.Marshal(driver) - if err != nil { - return err - } - return host.UpdateConfig(driverData) -} - -/* -func (r *RPCServerDriver) SetConfigRaw(data []byte, _ *struct{}) error { - return json.Unmarshal(data, &r.ActualDriver) -} -*/ diff --git a/pkg/crc/machine/driver_windows.go b/pkg/crc/machine/driver_windows.go deleted file mode 100644 index b7ef70bab7..0000000000 --- a/pkg/crc/machine/driver_windows.go +++ /dev/null @@ -1,35 +0,0 @@ -package machine - -import ( - "encoding/json" - "errors" - - "github.com/crc-org/crc/v2/pkg/crc/machine/config" - "github.com/crc-org/crc/v2/pkg/crc/machine/libhvee" - machineLibhvee "github.com/crc-org/crc/v2/pkg/drivers/libhvee" - "github.com/crc-org/crc/v2/pkg/libmachine" - "github.com/crc-org/crc/v2/pkg/libmachine/host" -) - -func newHost(api libmachine.API, machineConfig config.MachineConfig) (*host.Host, error) { - json, err := json.Marshal(libhvee.CreateHost(machineConfig)) - if err != nil { - return nil, errors.New("Failed to marshal driver options") - } - return api.NewHost("hyperv", "", json) -} - -func loadDriverConfig(host *host.Host) (*machineLibhvee.Driver, error) { - var libhveeDriver machineLibhvee.Driver - err := json.Unmarshal(host.RawDriver, &libhveeDriver) - - return &libhveeDriver, err -} - -func updateDriverConfig(host *host.Host, driver *machineLibhvee.Driver) error { - driverData, err := json.Marshal(driver) - if err != nil { - return err - } - return host.UpdateConfig(driverData) -} diff --git a/pkg/crc/machine/exists.go b/pkg/crc/machine/exists.go index 2348bb6b78..545d72e2dc 100644 --- a/pkg/crc/machine/exists.go +++ b/pkg/crc/machine/exists.go @@ -7,9 +7,7 @@ import ( ) func (client *client) Exists() (bool, error) { - libMachineAPIClient, cleanup := createLibMachineClient() - defer cleanup() - exists, err := libMachineAPIClient.Exists(client.name) + exists, err := vmExists(client.name) if err != nil { return false, fmt.Errorf("error checking if the host exists: %w", err) } diff --git a/pkg/crc/machine/generate_bundle.go b/pkg/crc/machine/generate_bundle.go index 36635b5caa..52030d55e4 100644 --- a/pkg/crc/machine/generate_bundle.go +++ b/pkg/crc/machine/generate_bundle.go @@ -9,9 +9,9 @@ import ( "github.com/crc-org/crc/v2/pkg/crc/constants" "github.com/crc-org/crc/v2/pkg/crc/logging" "github.com/crc-org/crc/v2/pkg/crc/machine/bundle" + "github.com/crc-org/crc/v2/pkg/crc/machine/state" "github.com/crc-org/crc/v2/pkg/crc/oc" crcssh "github.com/crc-org/crc/v2/pkg/crc/ssh" - "github.com/crc-org/machine/libmachine/state" "github.com/pkg/errors" ) @@ -115,7 +115,7 @@ func loadVM(client *client) (*bundle.CrcBundleInfo, *crcssh.Runner, error) { } defer vm.Close() - currentState, err := vm.Driver.GetState() + currentState, err := vm.State() if err != nil { return nil, nil, errors.Wrap(err, "Cannot get machine state") } diff --git a/pkg/crc/machine/ip.go b/pkg/crc/machine/ip.go index f03b2a8d15..ab9ed33438 100644 --- a/pkg/crc/machine/ip.go +++ b/pkg/crc/machine/ip.go @@ -17,9 +17,13 @@ func (client *client) ConnectionDetails() (*types.ConnectionDetails, error) { if err != nil { return nil, errors.Wrap(err, "Cannot get IP") } + port, err := vm.SSHPort() + if err != nil { + return nil, errors.Wrap(err, "Cannot get SSH port") + } return &types.ConnectionDetails{ IP: ip, - SSHPort: vm.SSHPort(), + SSHPort: port, SSHUsername: constants.DefaultSSHUser, SSHKeys: []string{constants.GetPrivateKeyPath(), constants.GetECDSAPrivateKeyPath(), vm.bundle.GetSSHKeyPath()}, }, nil diff --git a/pkg/crc/machine/libvirt/constants.go b/pkg/crc/machine/libvirt/constants.go deleted file mode 100644 index bd683972e0..0000000000 --- a/pkg/crc/machine/libvirt/constants.go +++ /dev/null @@ -1,33 +0,0 @@ -//go:build linux || build - -package libvirt - -import ( - "fmt" - "runtime" - - "github.com/crc-org/crc/v2/pkg/crc/constants" -) - -const ( - // Defaults - DefaultNetwork = "crc" - DefaultStoragePool = "crc" - - // Static addresses - MACAddress = "52:fd:fc:07:21:82" - IPAddress = "192.168.130.11" -) - -const ( - MachineDriverVersion = "0.13.11" -) - -var ( - machineDriverCommand = fmt.Sprintf("crc-driver-libvirt-%s", runtime.GOARCH) - MachineDriverDownloadURL = fmt.Sprintf("https://github.com/crc-org/machine-driver-libvirt/releases/download/%s/%s", MachineDriverVersion, machineDriverCommand) -) - -func MachineDriverPath() string { - return constants.ResolveHelperPath(machineDriverCommand) -} diff --git a/pkg/crc/machine/libvirt/driver_linux.go b/pkg/crc/machine/libvirt/driver_linux.go deleted file mode 100644 index bc77e20a49..0000000000 --- a/pkg/crc/machine/libvirt/driver_linux.go +++ /dev/null @@ -1,43 +0,0 @@ -package libvirt - -import ( - "fmt" - - "github.com/crc-org/crc/v2/pkg/crc/constants" - "github.com/crc-org/crc/v2/pkg/crc/machine/config" - "github.com/crc-org/crc/v2/pkg/crc/network" - "github.com/crc-org/machine/drivers/libvirt" - "github.com/crc-org/machine/libmachine/drivers" -) - -func CreateHost(machineConfig config.MachineConfig) *libvirt.Driver { - libvirtDriver := libvirt.NewDriver(machineConfig.Name, constants.MachineBaseDir) - - config.InitVMDriverFromMachineConfig(machineConfig, libvirtDriver.VMDriver) - - if machineConfig.NetworkMode == network.UserNetworkingMode { - libvirtDriver.Network = "" // don't need to attach a network interface - libvirtDriver.VSock = true - } else { - libvirtDriver.Network = DefaultNetwork - } - - libvirtDriver.StoragePool = DefaultStoragePool - libvirtDriver.SharedDirs = configureShareDirs(machineConfig) - - return libvirtDriver -} - -func configureShareDirs(machineConfig config.MachineConfig) []drivers.SharedDir { - var sharedDirs []drivers.SharedDir - for i, dir := range machineConfig.SharedDirs { - sharedDir := drivers.SharedDir{ - Source: dir, - Target: dir, - Tag: fmt.Sprintf("dir%d", i), - Type: "virtiofs", - } - sharedDirs = append(sharedDirs, sharedDir) - } - return sharedDirs -} diff --git a/pkg/crc/machine/libvirt/templates_linux.go b/pkg/crc/machine/libvirt/templates_linux.go deleted file mode 100644 index 4e5522517b..0000000000 --- a/pkg/crc/machine/libvirt/templates_linux.go +++ /dev/null @@ -1,26 +0,0 @@ -package libvirt - -const ( - NetworkTemplate = ` - {{ .NetworkName }} - 49eee855-d342-46c3-9ed3-b8d1758814cd - - - - - - - - - - - - - ` -) - -type NetworkConfig struct { - NetworkName string - MAC string - IP string -} diff --git a/pkg/crc/machine/macadam_helpers.go b/pkg/crc/machine/macadam_helpers.go new file mode 100644 index 0000000000..537b438dd0 --- /dev/null +++ b/pkg/crc/machine/macadam_helpers.go @@ -0,0 +1,106 @@ +package machine + +import ( + "encoding/json" + "strings" + + "github.com/crc-org/crc/v2/pkg/crc/constants" + "github.com/crc-org/crc/v2/pkg/crc/macadam" + "github.com/crc-org/crc/v2/pkg/crc/machine/state" + "github.com/pkg/errors" +) + +// getMacadamClient returns a configured macadam client +func getMacadamClient() macadam.Config { + return macadam.UseMacadam() +} + +// vmExists checks if a VM exists by querying macadam +func vmExists(vmName string) (bool, error) { + m := getMacadamClient() + stdout, _, err := m.ListVMs() + if err != nil { + return false, errors.Wrap(err, "failed to list VMs") + } + + // Parse the list output to check if VM exists + lines := strings.Split(stdout, "\n") + for _, line := range lines { + if strings.Contains(line, vmName) { + return true, nil + } + } + return false, nil +} + +// getVMState gets the state of a VM using macadam +func getVMState(vmName string) (state.State, error) { + m := getMacadamClient() + statusStr, err := m.GetVMStatus(vmName) + if err != nil { + // If the command fails, the VM likely doesn't exist or is in error state + return state.Error, errors.Wrap(err, "failed to get VM status") + } + + // Parse macadam inspect state output + // Expected format: "running", "stopped", etc. + return parseMacadamState(statusStr), nil +} + +// parseMacadamState converts macadam status string to CRC state +func parseMacadamState(statusStr string) state.State { + statusStr = strings.ToLower(strings.TrimSpace(statusStr)) + + if strings.Contains(statusStr, "running") { + return state.Running + } + if strings.Contains(statusStr, "stopped") || strings.Contains(statusStr, "shutoff") { + return state.Stopped + } + if strings.Contains(statusStr, "stopping") { + return state.Stopping + } + if strings.Contains(statusStr, "starting") { + return state.Starting + } + + return state.Error +} + +// getVMIP returns the IP address of the VM +// For now, this returns 127.0.0.1 for vsock mode or attempts to get it from SSH config +func getVMIP(vmName string, useVSock bool) (string, error) { + if useVSock { + return "127.0.0.1", nil + } + + // TODO: Implement IP retrieval for non-vsock mode + // This might involve reading from macadam config or using SSH + return "192.168.130.11", nil // Default IP used by CRC +} + +// getVMSSHPort returns the SSH port for the VM +func getVMSSHPort(vmName string, useVSock bool) (int, error) { + if !useVSock { + return constants.DefaultSSHPort, nil + } + + // For vsock/user-mode networking, get the dynamic port from macadam inspect + m := getMacadamClient() + stdout, stderr, err := m.RunMacadamCommand("inspect", vmName) + if err != nil { + return 0, errors.Wrapf(err, "failed to inspect VM (stderr: %s)", stderr) + } + + // Parse the JSON output + var vms []macadam.VMInspectInfo + if err := json.Unmarshal([]byte(stdout), &vms); err != nil { + return 0, errors.Wrap(err, "failed to parse inspect output") + } + + if len(vms) == 0 { + return 0, errors.New("no VM information returned") + } + + return vms[0].SSHConfig.Port, nil +} diff --git a/pkg/crc/machine/machine.go b/pkg/crc/machine/machine.go index 7c84ae4382..234274e8c3 100644 --- a/pkg/crc/machine/machine.go +++ b/pkg/crc/machine/machine.go @@ -9,8 +9,6 @@ import ( "github.com/crc-org/crc/v2/pkg/crc/machine/bundle" "github.com/crc-org/crc/v2/pkg/crc/machine/types" "github.com/crc-org/crc/v2/pkg/crc/network/httpproxy" - "github.com/crc-org/crc/v2/pkg/libmachine" - "github.com/crc-org/machine/libmachine/drivers" ) func getClusterConfig(bundleInfo *bundle.CrcBundleInfo) (*types.ClusterConfig, error) { @@ -49,27 +47,6 @@ func getClusterConfig(bundleInfo *bundle.CrcBundleInfo) (*types.ClusterConfig, e }, nil } -func getBundleMetadataFromDriver(driver drivers.Driver) (*bundle.CrcBundleInfo, error) { - bundleName, err := driver.GetBundleName() - if err != nil { - err := fmt.Errorf("Error getting bundle name from CRC instance, make sure you ran 'crc setup' and are using the latest bundle") - return nil, err - } - metadata, err := bundle.Get(bundleName) - if err != nil { - return nil, err - } - - return metadata, err -} - -func createLibMachineClient() (libmachine.API, func()) { - client := libmachine.NewClient(constants.MachineBaseDir) - return client, func() { - client.Close() - } -} - func getProxyConfig(bundleInfo *bundle.CrcBundleInfo) (*httpproxy.ProxyConfig, error) { proxy, err := httpproxy.NewProxyConfig() if err != nil { diff --git a/pkg/crc/machine/poweroff.go b/pkg/crc/machine/poweroff.go index 6f6077edaa..f3a059e63d 100644 --- a/pkg/crc/machine/poweroff.go +++ b/pkg/crc/machine/poweroff.go @@ -3,13 +3,9 @@ package machine import "github.com/pkg/errors" func (client *client) PowerOff() error { - vm, err := loadVirtualMachine(client.name, client.useVSock()) + m := getMacadamClient() + _, _, err := m.StopVM(client.name) if err != nil { - return errors.Wrap(err, "Cannot load machine") - } - defer vm.Close() - - if err := vm.Kill(); err != nil { return errors.Wrap(err, "Cannot kill machine") } return nil diff --git a/pkg/crc/machine/start.go b/pkg/crc/machine/start.go index 9d1254259f..23fa8d6eea 100644 --- a/pkg/crc/machine/start.go +++ b/pkg/crc/machine/start.go @@ -2,8 +2,6 @@ package machine import ( "context" - "crypto/rsa" - "crypto/x509" "fmt" "math/rand" "os" @@ -13,16 +11,18 @@ import ( "go.podman.io/common/pkg/strongunits" + "github.com/crc-org/crc/v2/pkg/crc/cloudinit" "github.com/crc-org/crc/v2/pkg/crc/cluster" "github.com/crc-org/crc/v2/pkg/crc/constants" crcerrors "github.com/crc-org/crc/v2/pkg/crc/errors" + "github.com/crc-org/crc/v2/pkg/crc/hostsapi" "github.com/crc-org/crc/v2/pkg/crc/logging" + "github.com/crc-org/crc/v2/pkg/crc/macadam" "github.com/crc-org/crc/v2/pkg/crc/machine/bundle" "github.com/crc-org/crc/v2/pkg/crc/machine/config" "github.com/crc-org/crc/v2/pkg/crc/machine/state" "github.com/crc-org/crc/v2/pkg/crc/machine/types" "github.com/crc-org/crc/v2/pkg/crc/network" - "github.com/crc-org/crc/v2/pkg/crc/network/httpproxy" "github.com/crc-org/crc/v2/pkg/crc/oc" crcPreset "github.com/crc-org/crc/v2/pkg/crc/preset" "github.com/crc-org/crc/v2/pkg/crc/services" @@ -30,12 +30,8 @@ import ( crcssh "github.com/crc-org/crc/v2/pkg/crc/ssh" "github.com/crc-org/crc/v2/pkg/crc/systemd" "github.com/crc-org/crc/v2/pkg/crc/telemetry" - crctls "github.com/crc-org/crc/v2/pkg/crc/tls" "github.com/crc-org/crc/v2/pkg/crc/validation" - "github.com/crc-org/crc/v2/pkg/libmachine/host" crcos "github.com/crc-org/crc/v2/pkg/os" - "github.com/crc-org/machine/libmachine/drivers" - libmachinestate "github.com/crc-org/machine/libmachine/state" "github.com/docker/go-units" "github.com/pkg/errors" "golang.org/x/crypto/ssh" @@ -62,46 +58,9 @@ func getCrcBundleInfo(ctx context.Context, preset crcPreset.Preset, bundleName, return bundle.Use(bundleName) } -func (client *client) updateVMConfig(startConfig types.StartConfig, vm *virtualMachine) error { - /* Memory */ - logging.Debugf("Updating CRC VM configuration") - if err := setMemory(vm.Host, startConfig.Memory); err != nil { - logging.Debugf("Failed to update CRC VM configuration: %v", err) - if err == drivers.ErrNotImplemented { - logging.Warn("Memory configuration change has been ignored as the machine driver does not support it") - } else { - return err - } - } - if err := setVcpus(vm.Host, startConfig.CPUs); err != nil { - logging.Debugf("Failed to update CRC VM configuration: %v", err) - if err == drivers.ErrNotImplemented { - logging.Warn("CPU configuration change has been ignored as the machine driver does not support it") - } else { - return err - } - } - if err := vm.api.Save(vm.Host); err != nil { - return err - } - - /* Disk size */ - if startConfig.DiskSize != constants.DefaultDiskSize { - if err := setDiskSize(vm.Host, startConfig.DiskSize); err != nil { - logging.Debugf("Failed to update CRC disk configuration: %v", err) - if err == drivers.ErrNotImplemented { - logging.Warn("Disk size configuration change has been ignored as the machine driver does not support it") - } else { - return err - } - } - if err := vm.api.Save(vm.Host); err != nil { - return err - } - } - - return nil -} +// updateVMConfig is no longer needed with macadam as VM configuration +// is set during initialization and cannot be changed afterwards +// If configuration changes are needed, the VM must be deleted and recreated func growRootFileSystem(sshRunner *crcssh.Runner, preset crcPreset.Preset, persistentVolumeSize int) error { rootPart, err := getrootPartition(sshRunner, preset) @@ -119,7 +78,6 @@ func growRootFileSystem(sshRunner *crcssh.Runner, preset crcPreset.Preset, persi return err } logging.Debugf("No free space after %s, nothing to do", rootPart) - return nil } if preset == crcPreset.Microshift { @@ -200,70 +158,10 @@ func growLVForMicroshift(sshRunner crcos.CommandRunner, lvFullName string, rootP return nil } -func configureSharedDirs(vm *virtualMachine, sshRunner *crcssh.Runner) error { - logging.Debugf("Configuring shared directories") - sharedDirs, err := vm.Driver.GetSharedDirs() - if err != nil { - // the libvirt machine driver uses net/rpc, which wraps errors - // in rpc.ServerError, but without using golang 1.13 error - // wrapping feature. Moreover, this package is marked as - // frozen/not accepting new features, so it's unlikely we'll - // ever be able to use errors.Is() - if err.Error() == drivers.ErrNotSupported.Error() || err.Error() == drivers.ErrNotImplemented.Error() { - return nil - } - return err - } - if len(sharedDirs) == 0 { - return nil - } - logging.Infof("Configuring shared directories") - for _, mount := range sharedDirs { - // Try to create the mount directory and if it fails then - // make the file system mutable and again try to create the - // mount directory. - // If the directory is already exists, then `mkdir -p` won't return an error. - if _, _, err := sshRunner.RunPrivileged(fmt.Sprintf("Creating %s", mount.Target), "mkdir", "-p", mount.Target); err != nil { - if _, _, err := sshRunner.RunPrivileged("Making / mutable", "chattr", "-i", "/"); err != nil { - return err - } - if _, _, err := sshRunner.RunPrivileged(fmt.Sprintf("Creating %s", mount.Target), "mkdir", "-p", mount.Target); err != nil { - return err - } - if _, _, err := sshRunner.RunPrivileged("Making / immutable again", "chattr", "+i", "/"); err != nil { - return err - } - } - logging.Debugf("Mounting tag %s at %s", mount.Tag, mount.Target) - switch mount.Type { - case "virtiofs": - if _, _, err := sshRunner.RunPrivileged(fmt.Sprintf("Mounting %s", mount.Target), "mount", "-o", "context=\"system_u:object_r:container_file_t:s0\"", "-t", mount.Type, mount.Tag, mount.Target); err != nil { - return err - } - - case "9p": - if vm.bundle.IsMicroshift() { - // temporarily disable 9P file sharing for microshift until - // new bundles are released - break - } - // change owner to core user to allow mounting to it as a non-root user - if _, _, err := sshRunner.RunPrivileged("Changing owner of mount directory", "chown", "core:core", mount.Target); err != nil { - return err - } - if _, _, err := sshRunner.Run("9pfs -V -p", fmt.Sprintf("%d", constants.Plan9HvsockPort), "2", mount.Target); err != nil { - logging.Warnf("Failed to connect to 9p server over hvsock: %v", err) - logging.Warnf("Falling back to 9p over TCP") - if _, _, err := sshRunner.Run("9pfs", constants.VSockGateway, mount.Target); err != nil { - return err - } - } - - default: - return fmt.Errorf("Unknown Shared dir type requested: %s", mount.Type) - } - } - +func configureSharedDirs(_ *virtualMachine, _ *crcssh.Runner) error { + // TODO: Implement shared directory configuration for macadam + // For now, shared directories are not supported with macadam + logging.Debug("Shared directory configuration not yet implemented for macadam") return nil } @@ -335,7 +233,7 @@ func (client *client) Start(ctx context.Context, startConfig types.StartConfig) if crcBundleMetadata.IsOpenShift() { machineConfig.KubeConfig = crcBundleMetadata.GetKubeConfigPath() } - if err := createHost(machineConfig, crcBundleMetadata.GetBundleType()); err != nil { + if err := createHost(machineConfig, crcBundleMetadata.GetBundleType(), startConfig.PullSecret, startConfig.KubeAdminPassword, startConfig.DeveloperPassword); err != nil { return nil, errors.Wrap(err, "Error creating machine") } } else { @@ -381,17 +279,10 @@ func (client *client) Start(ctx context.Context, startConfig types.StartConfig) logging.Infof("Starting CRC VM for %s %s...", startConfig.Preset, vm.bundle.GetVersion()) - if client.useVSock() { - if err := exposePorts(startConfig.Preset, startConfig.IngressHTTPPort, startConfig.IngressHTTPSPort); err != nil { - return nil, err - } - } - - if err := client.updateVMConfig(startConfig, vm); err != nil { - return nil, errors.Wrap(err, "Could not update CRC VM configuration") - } + // Note: With macadam, VM configuration is set during init and cannot be updated afterwards + // If config changes are needed, the VM must be recreated - if err := startHost(ctx, vm); err != nil { + if err := startHost(ctx, vm.name); err != nil { return nil, errors.Wrap(err, "Error starting machine") } @@ -409,6 +300,23 @@ func (client *client) Start(ctx context.Context, startConfig types.StartConfig) return nil, errors.Wrap(err, "Error getting the IP") } logging.Infof("CRC instance is running with IP %s", instanceIP) + + // Configure internal DNS if using vsock/user-mode networking + if client.useVSock() { + gvClient, err := getGVProxyClient(vm.name) + if err != nil { + return nil, errors.Wrap(err, "Error getting gvproxy client") + } + if err := enableInternalDNS(gvClient); err != nil { + logging.Warnf("Failed to configure internal DNS: %v", err) + // Don't fail startup if DNS configuration fails, just warn + } + if err := exposePorts(gvClient, startConfig.Preset, startConfig.IngressHTTPPort, startConfig.IngressHTTPSPort); err != nil { + logging.Warnf("Failed to expose ports: %v", err) + // Don't fail startup if port exposure fails, just warn + } + } + sshRunner, err := vm.SSHRunner() if err != nil { return nil, errors.Wrap(err, "Error creating the ssh client") @@ -538,7 +446,7 @@ func (client *client) Start(ctx context.Context, startConfig types.StartConfig) } if client.useVSock() { - if err := ensureRoutesControllerIsRunning(sshRunner, ocConfig); err != nil { + if err := ensureRoutesControllerIsRunning(ctx, sshRunner, ocConfig, instanceIP); err != nil { return nil, err } } @@ -560,32 +468,23 @@ func (client *client) Start(ctx context.Context, startConfig types.StartConfig) return nil, errors.Wrap(err, "Failed to check certificate validity") } - logging.Info("Starting kubelet service") - sd := systemd.NewInstanceSystemdCommander(sshRunner) - if err := sd.Start("kubelet"); err != nil { - return nil, errors.Wrap(err, "Error starting kubelet") - } - ocConfig := oc.UseOCWithSSH(sshRunner) - if err := cluster.ApproveCSRAndWaitForCertsRenewal(ctx, sshRunner, ocConfig, certsExpired[cluster.KubeletClientCert], certsExpired[cluster.KubeletServerCert], certsExpired[cluster.AggregatorClientCert]); err != nil { - logBundleDate(vm.bundle) - return nil, errors.Wrap(err, "Failed to renew TLS certificates: please check if a newer CRC release is available") - } - if err := cluster.WaitForAPIServer(ctx, ocConfig); err != nil { return nil, errors.Wrap(err, "Error waiting for apiserver") } - if err := ensureProxyIsConfiguredInOpenShift(ctx, ocConfig, sshRunner, proxyConfig); err != nil { - return nil, errors.Wrap(err, "Failed to update cluster proxy configuration") + if err := cluster.ApproveCSRAndWaitForCertsRenewal(ctx, sshRunner, ocConfig, certsExpired[cluster.KubeletClientCert], certsExpired[cluster.KubeletServerCert], certsExpired[cluster.AggregatorClientCert]); err != nil { + logBundleDate(vm.bundle) + return nil, errors.Wrap(err, "Failed to renew TLS certificates: please check if a newer CRC release is available") } if err := cluster.DeleteMCOLeaderLease(ctx, ocConfig); err != nil { return nil, err } + systemdRunner := systemd.NewInstanceSystemdCommander(sshRunner) - if err := cluster.EnsurePullSecretPresentInTheCluster(ctx, ocConfig, startConfig.PullSecret); err != nil { + if err := cluster.EnsurePullSecretPresentInTheCluster(ctx, systemdRunner, ocConfig, startConfig.PullSecret); err != nil { return nil, errors.Wrap(err, "Failed to update cluster pull secret") } @@ -593,16 +492,16 @@ func (client *client) Start(ctx context.Context, startConfig types.StartConfig) return nil, errors.Wrap(err, "Failed to update ssh public key to machine config") } - if err := cluster.UpdateUserPasswords(ctx, ocConfig, startConfig.KubeAdminPassword, startConfig.DeveloperPassword); err != nil { - return nil, errors.Wrap(err, "Failed to update kubeadmin user password") + if err := cluster.EnsureClusterIDIsNotEmpty(ctx, systemdRunner, ocConfig); err != nil { + return nil, errors.Wrap(err, "Failed to update cluster ID") } - if err := cluster.EnsureClusterIDIsNotEmpty(ctx, ocConfig); err != nil { - return nil, errors.Wrap(err, "Failed to update cluster ID") + if err := copyKubeconfigFileFromVMToHost(ctx, systemdRunner, sshRunner, constants.KubeconfigFilePath); err != nil { + return nil, errors.Wrap(err, "Failed to update kubeconfig file") } if client.useVSock() { - if err := ensureRoutesControllerIsRunning(sshRunner, ocConfig); err != nil { + if err := ensureRoutesControllerIsRunning(ctx, sshRunner, ocConfig, instanceIP); err != nil { return nil, err } } @@ -614,10 +513,6 @@ func (client *client) Start(ctx context.Context, startConfig types.StartConfig) } } - if err := updateKubeconfig(ctx, ocConfig, sshRunner, vm.bundle.GetKubeConfigPath()); err != nil { - return nil, errors.Wrap(err, "Failed to update kubeconfig file") - } - logging.Infof("Starting %s instance... [waiting for the cluster to stabilize]", startConfig.Preset) if err := cluster.WaitForClusterStable(ctx, instanceIP, constants.KubeconfigFilePath, proxyConfig); err != nil { logging.Warnf("Cluster is not ready: %v", err) @@ -627,7 +522,7 @@ func (client *client) Start(ctx context.Context, startConfig types.StartConfig) return nil, errors.Wrap(err, "Failed to update pull secret on the disk") } - waitForProxyPropagation(ctx, ocConfig, proxyConfig) + /*waitForProxyPropagation(ctx, ocConfig, proxyConfig)*/ clusterConfig, err := getClusterConfig(vm.bundle) if err != nil { @@ -647,14 +542,17 @@ func (client *client) Start(ctx context.Context, startConfig types.StartConfig) } func (client *client) IsRunning() (bool, error) { - vm, err := loadVirtualMachine(client.name, client.useVSock()) + // Check if VM exists first + exists, err := vmExists(client.name) if err != nil { - return false, errors.Wrap(err, "Cannot load machine") + return false, errors.Wrap(err, "Cannot check if machine exists") + } + if !exists { + return false, nil } - defer vm.Close() // get the actual state - vmState, err := vm.State() + vmState, err := getVMState(client.name) if err != nil { // but reports not started on error return false, errors.Wrap(err, "Error getting the state") @@ -674,62 +572,117 @@ func (client *client) validateStartConfig(startConfig types.StartConfig) error { return nil } -func createHost(machineConfig config.MachineConfig, preset crcPreset.Preset) error { - api, cleanup := createLibMachineClient() - defer cleanup() +func createHost(machineConfig config.MachineConfig, preset crcPreset.Preset, pullSecret cluster.PullSecretLoader, userKubeAdminPassword string, userDeveloperPassword string) error { + logging.Info("Generating new SSH key pair...") + if err := crcssh.GenerateSSHKey(constants.GetPrivateKeyPath()); err != nil { + return fmt.Errorf("error generating ssh key pair: %w", err) + } - vm, err := newHost(api, machineConfig) + // Read the public key for cloud-init + pubKeyBytes, err := os.ReadFile(constants.GetPublicKeyPath()) if err != nil { - return fmt.Errorf("error creating new host: %w", err) + return fmt.Errorf("Error reading public key: %v", err) } + publicKey := strings.TrimSpace(string(pubKeyBytes)) - logging.Debug("Running pre-create checks...") + // Generate passwords for OpenShift/OKD + var kubeAdminPassword, developerPassword string + if preset == crcPreset.OpenShift || preset == crcPreset.OKD { + // Use user-provided kubeadmin password if available, otherwise generate a new one + if userKubeAdminPassword != "" { + logging.Infof("Using user-provided kubeadmin password from config") + kubeAdminPassword = userKubeAdminPassword + if err := os.WriteFile(constants.GetKubeAdminPasswordPath(), []byte(kubeAdminPassword), 0o600); err != nil { + return errors.Wrap(err, "Error writing kubeadmin password") + } + } else { + if err := cluster.GenerateUserPassword(constants.GetKubeAdminPasswordPath(), "kubeadmin"); err != nil { + return errors.Wrap(err, "Error generating new kubeadmin password") + } + kubeAdminPassBytes, err := os.ReadFile(constants.GetKubeAdminPasswordPath()) + if err != nil { + return errors.Wrap(err, "Error reading kubeadmin password") + } + kubeAdminPassword = strings.TrimSpace(string(kubeAdminPassBytes)) + } - if err := vm.Driver.PreCreateCheck(); err != nil { - return errors.Wrap(err, "error with pre-create check") + // Use user-provided developer password if available, otherwise use default + if userDeveloperPassword != "" { + logging.Infof("Using user-provided developer password from config") + developerPassword = userDeveloperPassword + } else { + developerPassword = constants.DefaultDeveloperPassword + } + if err = os.WriteFile(constants.GetDeveloperPasswordPath(), []byte(developerPassword), 0o600); err != nil { + return errors.Wrap(err, "Error writing developer password") + } } - if err := api.Save(vm); err != nil { - return fmt.Errorf("error saving host to store before attempting creation: %w", err) + content, err := pullSecret.Value() + if err != nil { + return errors.Wrap(err, "error getting pull secret") } - logging.Debug("Creating machine...") + logging.Debug("Generating cloud-init user-data...") + cloudInitOpts := cloudinit.UserDataOptions{ + PublicKey: publicKey, + PullSecret: content, + KubeAdminPassword: kubeAdminPassword, + DeveloperPassword: developerPassword, + } - if err := vm.Driver.Create(); err != nil { - return fmt.Errorf("error in driver during machine creation: %w", err) + userDataPath, err := cloudinit.GenerateUserData(machineConfig.Name, cloudInitOpts) + if err != nil { + return fmt.Errorf("error generating cloud-init user-data: %w", err) } - logging.Info("Generating new SSH key pair...") - if err := crcssh.GenerateSSHKey(constants.GetPrivateKeyPath()); err != nil { - return fmt.Errorf("error generating ssh key pair: %w", err) + vmOpts := macadam.VMOptions{ + DiskImagePath: machineConfig.ImageSourcePath, + DiskSize: uint64(machineConfig.DiskSize), + Memory: uint64(machineConfig.Memory), + Name: machineConfig.Name, + Username: "core", + SSHIdentityPath: constants.GetPrivateKeyPath(), + CPUs: uint64(machineConfig.CPUs), + CloudInitPath: userDataPath, } - if preset == crcPreset.OpenShift || preset == crcPreset.OKD { - if err := cluster.GenerateUserPassword(constants.GetKubeAdminPasswordPath(), "kubeadmin"); err != nil { - return errors.Wrap(err, "Error generating new kubeadmin password") - } - if err = os.WriteFile(constants.GetDeveloperPasswordPath(), []byte(constants.DefaultDeveloperPassword), 0o600); err != nil { - return errors.Wrap(err, "Error writing developer password") - } + + logging.Debug("Creating machine with macadam...") + m := macadam.UseMacadam() + stdout, stderr, err := m.InitVM(vmOpts) + if err != nil { + return fmt.Errorf("error in macadam during machine creation: %w\nStdout: %s\nStderr: %s", err, stdout, stderr) } - if err := api.SetExists(vm.Name); err != nil { - return fmt.Errorf("failed to record VM existence: %w", err) + + if err := saveBundleMetadataToConfig(machineConfig.Name, machineConfig.BundleName); err != nil { + logging.Warnf("Failed to save bundle metadata: %v", err) } logging.Debug("Machine successfully created") return nil } -func startHost(ctx context.Context, vm *virtualMachine) error { - if err := vm.Driver.Start(); err != nil { +func startHost(ctx context.Context, vmName string) error { + m := getMacadamClient() + _, stdErr, err := m.StartVM(vmName) + fmt.Println("stdErr", stdErr) + // TODO: Ignoring error for now, we need to handle this better + // https://github.com/cfergeau/podman/pull/24 + if err != nil && !strings.Contains(stdErr, "machine did not transition into running state") { return fmt.Errorf("error in driver during machine start: %w", err) } - if err := vm.api.Save(vm.Host); err != nil { - return fmt.Errorf("error saving virtual machine to store after attempting creation: %w", err) - } - logging.Debug("Waiting for machine to be running, this may take a few minutes...") - if err := crcerrors.Retry(ctx, 3*time.Minute, host.MachineInState(vm.Driver, libmachinestate.Running), 3*time.Second); err != nil { + if err := crcerrors.Retry(ctx, 3*time.Minute, func() error { + vmState, err := getVMState(vmName) + if err != nil { + return err + } + if vmState != state.Running { + return fmt.Errorf("machine not running yet, current state: %s", vmState) + } + return nil + }, 3*time.Second); err != nil { return fmt.Errorf("error waiting for machine to be running: %w", err) } @@ -798,48 +751,6 @@ func updateSSHKeyPair(sshRunner *crcssh.Runner) error { return nil } -func copyKubeconfigFileWithUpdatedUserClientCertAndKey(selfSignedCAKey *rsa.PrivateKey, selfSignedCACert *x509.Certificate, srcKubeConfigPath, dstKubeConfigPath string) error { - if _, err := os.Stat(constants.KubeconfigFilePath); err == nil { - return nil - } - clientKey, clientCert, err := crctls.GenerateClientCertificate(selfSignedCAKey, selfSignedCACert) - if err != nil { - return err - } - return updateClientCrtAndKeyToKubeconfig(clientKey, clientCert, srcKubeConfigPath, dstKubeConfigPath) -} - -func ensureProxyIsConfiguredInOpenShift(ctx context.Context, ocConfig oc.Config, sshRunner *crcssh.Runner, proxy *httpproxy.ProxyConfig) (err error) { - if !proxy.IsEnabled() { - return nil - } - logging.Info("Adding proxy configuration to the cluster...") - return cluster.AddProxyConfigToCluster(ctx, sshRunner, ocConfig, proxy) -} - -func waitForProxyPropagation(ctx context.Context, ocConfig oc.Config, proxyConfig *httpproxy.ProxyConfig) { - if !proxyConfig.IsEnabled() { - return - } - logging.Info("Waiting for the proxy configuration to be applied...") - checkProxySettingsForOperator := func() error { - proxySet, err := cluster.CheckProxySettingsForOperator(ocConfig, proxyConfig, "marketplace-operator", "openshift-marketplace") - if err != nil { - logging.Debugf("Error getting proxy setting for openshift-marketplace operator %v", err) - return &crcerrors.RetriableError{Err: err} - } - if !proxySet { - logging.Debug("Proxy changes for cluster in progress") - return &crcerrors.RetriableError{Err: fmt.Errorf("")} - } - return nil - } - - if err := crcerrors.Retry(ctx, 300*time.Second, checkProxySettingsForOperator, 2*time.Second); err != nil { - logging.Debug("Failed to propagate proxy settings to cluster") - } -} - func logBundleDate(crcBundleMetadata *bundle.CrcBundleInfo) { if buildTime, err := crcBundleMetadata.GetBundleBuildTime(); err == nil { bundleAgeDays := time.Since(buildTime).Hours() / 24 @@ -850,13 +761,19 @@ func logBundleDate(crcBundleMetadata *bundle.CrcBundleInfo) { } } -func ensureRoutesControllerIsRunning(sshRunner *crcssh.Runner, ocConfig oc.Config) error { +func ensureRoutesControllerIsRunning(ctx context.Context, sshRunner *crcssh.Runner, ocConfig oc.Config, instanceIP string) error { // Check if the bundle have `/opt/crc/routes-controller.yaml` file and if it has // then use it to create the resource for the routes controller. _, _, err := sshRunner.Run("ls", "/opt/crc/routes-controller.yaml") if err != nil { return err } + + // Secret must exist before routes-controller starts so it can mount CRC_HOSTS_API_TOKEN. + if err := ensureHostsAPITokenInCluster(ctx, instanceIP); err != nil { + return err + } + _, _, err = ocConfig.RunOcCommand("apply", "-f", "/opt/crc/routes-controller.yaml") if err != nil { return err @@ -864,6 +781,17 @@ func ensureRoutesControllerIsRunning(sshRunner *crcssh.Runner, ocConfig oc.Confi return ensureRoutesNetworkPolicy(sshRunner, ocConfig) } +func ensureHostsAPITokenInCluster(ctx context.Context, instanceIP string) error { + token, err := hostsapi.LoadOrCreateToken(constants.HostsAPITokenPath) + if err != nil { + return errors.Wrap(err, "failed to load hosts API token") + } + if err := cluster.EnsureHostsAPITokenSecret(ctx, instanceIP, constants.KubeconfigFilePath, token); err != nil { + return errors.Wrap(err, "failed to ensure hosts API token secret") + } + return nil +} + func ensureRoutesNetworkPolicy(sshRunner *crcssh.Runner, ocConfig oc.Config) error { if err := sshRunner.CopyDataPrivileged([]byte(constants.RoutesNetworkPolicyYAML), "/opt/crc/routes-networkpolicy.yaml", 0o644); err != nil { return err @@ -872,20 +800,13 @@ func ensureRoutesNetworkPolicy(sshRunner *crcssh.Runner, ocConfig oc.Config) err return err } -func updateKubeconfig(ctx context.Context, ocConfig oc.Config, sshRunner *crcssh.Runner, kubeconfigFilePath string) error { - selfSignedCAKey, selfSignedCACert, err := crctls.GetSelfSignedCA() - if err != nil { - return errors.Wrap(err, "Not able to generate root CA key and Cert") - } - if err := copyKubeconfigFileWithUpdatedUserClientCertAndKey(selfSignedCAKey, selfSignedCACert, kubeconfigFilePath, constants.KubeconfigFilePath); err != nil { - return errors.Wrapf(err, "Failed to copy kubeconfig file: %s", constants.KubeconfigFilePath) - } - adminClientCA, err := adminClientCertificate(constants.KubeconfigFilePath) - if err != nil { - return errors.Wrap(err, "Not able to get user CA") +func copyKubeconfigFileFromVMToHost(ctx context.Context, systemdRunner *systemd.Commander, sshRunner *crcssh.Runner, kubeconfigFilePath string) error { + logging.Info("Waiting for the updated kubeconfig file to be available on the host...") + if err := cluster.WaitForServiceSuccessfullyFinished(ctx, systemdRunner, "ocp-cluster-ca.service", 300*time.Second, 2*time.Second); err != nil { + return err } - if err := cluster.EnsureGeneratedClientCAPresentInTheCluster(ctx, ocConfig, sshRunner, selfSignedCACert, adminClientCA); err != nil { - return errors.Wrap(err, "Failed to update user CA to cluster") + if err := sshRunner.CopyFileFromVM("/opt/kubeconfig", kubeconfigFilePath, 0o600); err != nil { + return err } return nil } diff --git a/pkg/crc/machine/state/state.go b/pkg/crc/machine/state/state.go index 60bdfc2707..258c3173c3 100644 --- a/pkg/crc/machine/state/state.go +++ b/pkg/crc/machine/state/state.go @@ -1,7 +1,5 @@ package state -import libmachinestate "github.com/crc-org/machine/libmachine/state" - // State represents the state of crc (both VM and components) type State string @@ -12,13 +10,3 @@ const ( Starting State = "Starting" Error State = "Error" ) - -func FromMachine(input libmachinestate.State) State { - switch input { - case libmachinestate.Running: - return Running - case libmachinestate.Stopped: - return Stopped - } - return Error -} diff --git a/pkg/crc/machine/stop.go b/pkg/crc/machine/stop.go index d21f74890f..9217c18fb2 100644 --- a/pkg/crc/machine/stop.go +++ b/pkg/crc/machine/stop.go @@ -15,29 +15,23 @@ func (client *client) Stop() (state.State, error) { logging.Warnf("Failed to remove crc contexts from kubeconfig: %v", err) } }(getGlobalKubeConfigPath(), getGlobalKubeConfigPath()) + if running, _ := client.IsRunning(); !running { return state.Error, errors.New("Instance is already stopped") } - vm, err := loadVirtualMachine(client.name, client.useVSock()) - if err != nil { - return state.Error, errors.Wrap(err, "Cannot load machine") - } - defer vm.Close() + logging.Info("Stopping the instance, this may take a few minutes...") - if err := vm.Stop(); err != nil { - status, stateErr := vm.State() - if stateErr != nil { - logging.Debugf("Cannot get VM status after stopping it: %v", stateErr) - } - return status, errors.Wrap(err, "Cannot stop machine") + + m := getMacadamClient() + _, _, err := m.StopVM(client.name) + if err != nil { + return state.Error, errors.Wrap(err, "Cannot stop machine") } - status, err := vm.State() + + status, err := getVMState(client.name) if err != nil { return state.Error, errors.Wrap(err, "Cannot get VM status") } - // In case usermode networking make sure all the port bind on host should be released - if client.useVSock() { - return status, unexposePorts() - } + return status, nil } diff --git a/pkg/crc/machine/virtualmachine.go b/pkg/crc/machine/virtualmachine.go index d1bcbcb426..f0155764a6 100644 --- a/pkg/crc/machine/virtualmachine.go +++ b/pkg/crc/machine/virtualmachine.go @@ -1,23 +1,22 @@ package machine import ( + "encoding/json" "fmt" + "os" + "path/filepath" "github.com/crc-org/crc/v2/pkg/crc/constants" "github.com/crc-org/crc/v2/pkg/crc/logging" "github.com/crc-org/crc/v2/pkg/crc/machine/bundle" "github.com/crc-org/crc/v2/pkg/crc/machine/state" "github.com/crc-org/crc/v2/pkg/crc/ssh" - "github.com/crc-org/crc/v2/pkg/libmachine" - libmachinehost "github.com/crc-org/crc/v2/pkg/libmachine/host" "github.com/pkg/errors" ) type virtualMachine struct { - name string - *libmachinehost.Host + name string bundle *bundle.CrcBundleInfo - api libmachine.API vsock bool } @@ -30,14 +29,18 @@ func errMissingHost(name string) *MissingHostError { } func (err *MissingHostError) Error() string { - return fmt.Sprintf("no such libmachine vm: %s", err.name) + return fmt.Sprintf("no such VM: %s", err.name) } var errInvalidBundleMetadata = errors.New("Error loading bundle metadata") +// vmConfig stores metadata about the VM that persists across restarts +type vmConfig struct { + BundleName string `json:"bundleName"` +} + func loadVirtualMachine(name string, useVSock bool) (*virtualMachine, error) { - apiClient := libmachine.NewClient(constants.MachineBaseDir) - exists, err := apiClient.Exists(name) + exists, err := vmExists(name) if err != nil { return nil, errors.Wrap(err, "Cannot check if machine exists") } @@ -45,12 +48,7 @@ func loadVirtualMachine(name string, useVSock bool) (*virtualMachine, error) { return nil, errMissingHost(name) } - libmachineHost, err := apiClient.Load(name) - if err != nil { - return nil, errors.Wrap(err, "Cannot load machine") - } - - crcBundleMetadata, err := getBundleMetadataFromDriver(libmachineHost.Driver) + crcBundleMetadata, err := getBundleMetadataFromConfig(name) if err != nil { logging.Debugf("Failed to get bundle metadata: %v", err) err = errInvalidBundleMetadata @@ -58,49 +56,90 @@ func loadVirtualMachine(name string, useVSock bool) (*virtualMachine, error) { return &virtualMachine{ name: name, - Host: libmachineHost, bundle: crcBundleMetadata, - api: apiClient, vsock: useVSock, }, err } -func (vm *virtualMachine) Close() error { - return vm.api.Close() +func getBundleMetadataFromConfig(vmName string) (*bundle.CrcBundleInfo, error) { + // Try to read bundle name from a config file in the machine directory + configPath := filepath.Join(constants.MachineInstanceDir, vmName, "config.json") + data, err := os.ReadFile(configPath) + if err != nil { + // Fallback: try to get from the most recent bundle + logging.Debugf("config.json not found, using most recent bundle: %v", err) + bundles, err := bundle.List() + if err != nil || len(bundles) == 0 { + return nil, errors.New("no bundle information available") + } + // Use the first/most recent bundle + return &bundles[0], nil + } + + // Parse config to get bundle name + var config vmConfig + if err := json.Unmarshal(data, &config); err != nil { + logging.Debugf("Failed to parse config.json, using most recent bundle: %v", err) + bundles, err := bundle.List() + if err != nil || len(bundles) == 0 { + return nil, errors.New("no bundle information available") + } + return &bundles[0], nil + } + + // Get bundle info by name + return bundle.Get(config.BundleName) } -func (vm *virtualMachine) Remove() error { - if err := vm.Driver.Remove(); err != nil { - return errors.Wrap(err, "Driver cannot remove machine") +// saveBundleMetadataToConfig saves the bundle name to a config file for later retrieval +func saveBundleMetadataToConfig(vmName, bundleName string) error { + configDir := filepath.Join(constants.MachineInstanceDir, vmName) + if err := os.MkdirAll(configDir, 0750); err != nil { + return fmt.Errorf("failed to create config directory: %v", err) } - if err := vm.api.Remove(vm.name); err != nil { - return errors.Wrap(err, "Cannot remove machine") + config := vmConfig{ + BundleName: bundleName, } + data, err := json.MarshalIndent(config, "", " ") + if err != nil { + return fmt.Errorf("failed to marshal config: %v", err) + } + + configPath := filepath.Join(configDir, "config.json") + if err := os.WriteFile(configPath, data, 0o600); err != nil { + return fmt.Errorf("failed to write config file: %v", err) + } + + logging.Debugf("Saved bundle metadata to %s", configPath) return nil } -func (vm *virtualMachine) State() (state.State, error) { - vmStatus, err := vm.Driver.GetState() +func (vm *virtualMachine) Close() error { + // No-op for macadam-based implementation + return nil +} + +func (vm *virtualMachine) Remove() error { + m := getMacadamClient() + _, _, err := m.DeleteVM(vm.name) if err != nil { - return state.Error, err + return errors.Wrap(err, "Cannot remove machine") } - return state.FromMachine(vmStatus), nil + return nil +} + +func (vm *virtualMachine) State() (state.State, error) { + return getVMState(vm.name) } func (vm *virtualMachine) IP() (string, error) { - if vm.vsock { - return "127.0.0.1", nil - } - return vm.Driver.GetIP() + return getVMIP(vm.name, vm.vsock) } -func (vm *virtualMachine) SSHPort() int { - if vm.vsock { - return constants.VsockSSHPort - } - return constants.DefaultSSHPort +func (vm *virtualMachine) SSHPort() (int, error) { + return getVMSSHPort(vm.name, vm.vsock) } func (vm *virtualMachine) SSHRunner() (*ssh.Runner, error) { @@ -108,5 +147,9 @@ func (vm *virtualMachine) SSHRunner() (*ssh.Runner, error) { if err != nil { return nil, err } - return ssh.CreateRunner(ip, vm.SSHPort(), constants.GetPrivateKeyPath(), constants.GetECDSAPrivateKeyPath(), vm.bundle.GetSSHKeyPath()) + port, err := vm.SSHPort() + if err != nil { + return nil, err + } + return ssh.CreateRunner(ip, port, constants.GetPrivateKeyPath(), constants.GetECDSAPrivateKeyPath(), vm.bundle.GetSSHKeyPath()) } diff --git a/pkg/crc/machine/vsock.go b/pkg/crc/machine/vsock.go index 7d9c72613a..dc9d760c0d 100644 --- a/pkg/crc/machine/vsock.go +++ b/pkg/crc/machine/vsock.go @@ -1,77 +1,96 @@ package machine import ( + "context" "fmt" "net" + "net/http" "net/url" + "os" "runtime" "strconv" + "time" + gvproxyclient "github.com/containers/gvisor-tap-vsock/pkg/client" "github.com/containers/gvisor-tap-vsock/pkg/types" "github.com/crc-org/crc/v2/pkg/crc/constants" - "github.com/crc-org/crc/v2/pkg/crc/daemonclient" - crcErrors "github.com/crc-org/crc/v2/pkg/crc/errors" "github.com/crc-org/crc/v2/pkg/crc/logging" + "github.com/crc-org/crc/v2/pkg/crc/network/httpproxy" crcPreset "github.com/crc-org/crc/v2/pkg/crc/preset" "github.com/pkg/errors" ) -func exposePorts(preset crcPreset.Preset, ingressHTTPPort, ingressHTTPSPort uint) error { +func exposePorts(gvClient *gvproxyclient.Client, preset crcPreset.Preset, ingressHTTPPort, ingressHTTPSPort uint) error { portsToExpose := vsockPorts(preset, ingressHTTPPort, ingressHTTPSPort) - daemonClient := daemonclient.New() - alreadyOpenedPorts, err := listOpenPorts(daemonClient) - if err != nil { - return err - } - var missingPorts []types.ExposeRequest for _, port := range portsToExpose { - if !isOpened(alreadyOpenedPorts, port) { - missingPorts = append(missingPorts, port) - } - } - for i := range missingPorts { - port := &missingPorts[i] - if err := daemonClient.NetworkClient.Expose(port); err != nil { + if err := gvClient.Expose(&port); err != nil { return errors.Wrapf(err, "failed to expose port %s -> %s", port.Local, port.Remote) } } return nil } -func isOpened(exposed []types.ExposeRequest, port types.ExposeRequest) bool { - for _, alreadyOpenedPort := range exposed { - if port == alreadyOpenedPort { - return true +func getGVProxyClient(vmName string) (*gvproxyclient.Client, error) { + m := getMacadamClient() + socketPath, err := m.GetGVProxySocketPath(vmName) + if err != nil { + return nil, errors.Wrapf(err, "failed to get gvproxy socket path") + } + if _, err := os.Stat(socketPath); err != nil { + if os.IsNotExist(err) { + return nil, fmt.Errorf("gvproxy socket does not exist at %s", socketPath) } + return nil, errors.Wrapf(err, "failed to check gvproxy socket at %s", socketPath) } - return false -} -func unexposePorts() error { - var mErr crcErrors.MultiError - daemonClient := daemonclient.New() - alreadyOpenedPorts, err := listOpenPorts(daemonClient) - if err != nil { - return err + baseTransport := httpproxy.HTTPTransport() + + var transport *http.Transport + if t, ok := baseTransport.(*http.Transport); ok { + transport = t.Clone() + } else { + transport = &http.Transport{} } - for _, port := range alreadyOpenedPorts { - if err := daemonClient.NetworkClient.Unexpose(&types.UnexposeRequest{Protocol: port.Protocol, Local: port.Local}); err != nil { - mErr.Collect(errors.Wrapf(err, "failed to unexpose port %s ", port.Local)) - } + + transport.DialContext = func(ctx context.Context, _, _ string) (net.Conn, error) { + return net.Dial("unix", socketPath) } - if len(mErr.Errors) == 0 { - return nil + + client := &http.Client{ + Transport: transport, + Timeout: 10 * time.Second, } - return mErr + + return gvproxyclient.New(client, "http://gvproxy"), nil } -func listOpenPorts(daemonClient *daemonclient.Client) ([]types.ExposeRequest, error) { - alreadyOpenedPorts, err := daemonClient.NetworkClient.List() - if err != nil { - logging.Error("Is 'crc daemon' running? Network mode 'vsock' requires 'crc daemon' to be running, run it manually on different terminal/tab") - return nil, err +// enableInternalDNS configures the internal DNS server via gvproxy Unix socket +func enableInternalDNS(gvClient *gvproxyclient.Client) error { + zone1 := types.Zone{ + Name: "crc.testing.", + Records: []types.Record{ + {Name: "host", IP: net.ParseIP("192.168.127.254")}, + {Name: "api", IP: net.ParseIP("192.168.127.2")}, + {Name: "api-int", IP: net.ParseIP("192.168.127.2")}, + {Name: "crc", IP: net.ParseIP("192.168.126.11")}, + }, } - return alreadyOpenedPorts, nil + + if err := gvClient.AddDNS(&zone1); err != nil { + return errors.Wrap(err, "failed to add DNS zone to gvproxy") + } + + zone2 := types.Zone{ + Name: "apps-crc.testing.", + DefaultIP: net.ParseIP("192.168.127.2"), + } + + if err := gvClient.AddDNS(&zone2); err != nil { + return errors.Wrap(err, "failed to add DNS zone to gvproxy") + } + + logging.Info("Successfully configured internal DNS server") + return nil } const ( diff --git a/pkg/crc/preflight/preflight_checks_common.go b/pkg/crc/preflight/preflight_checks_common.go index 2568cad1f1..974da1d8ec 100644 --- a/pkg/crc/preflight/preflight_checks_common.go +++ b/pkg/crc/preflight/preflight_checks_common.go @@ -6,7 +6,9 @@ import ( "os" "path/filepath" + "github.com/crc-org/crc/v2/pkg/crc/cache" "github.com/crc-org/crc/v2/pkg/crc/manpages" + "github.com/crc-org/crc/v2/pkg/crc/version" "github.com/crc-org/crc/v2/pkg/crc/adminhelper" "github.com/crc-org/crc/v2/pkg/crc/cluster" @@ -34,6 +36,30 @@ func bundleCheck(bundlePath string, preset crcpreset.Preset, enableBundleQuayFal } } +func gvproxyCheck() Check { + return Check{ + configKeySuffix: "check-gvproxy-cached", + checkDescription: "Checking if gvproxy executable is cached", + check: checkGVProxyExecutableCached, + fixDescription: "Caching gvproxy executable", + fix: fixGVProxyExecutableCached, + + labels: None, + } +} + +func macadamCheck() Check { + return Check{ + configKeySuffix: "check-macadam-cached", + checkDescription: "Checking if macadam executable is cached", + check: checkMacadamExecutableCached, + fixDescription: "Caching macadam executable", + fix: fixMacadamExecutableCached, + + labels: None, + } +} + func memoryCheck(preset crcpreset.Preset) Check { return Check{ configKeySuffix: "check-ram", @@ -172,3 +198,66 @@ func removeCrcManPages() error { func removeCRCHostEntriesFromKnownHosts() error { return ssh.RemoveCRCHostEntriesFromKnownHosts() } + +// Check if gvproxy executable is cached or not +func checkGVProxyExecutableCached() error { + if version.IsInstaller() { + return nil + } + + gvproxy := cache.NewGvproxyCache() + if !gvproxy.IsCached() { + return errors.New("gvproxy executable is not cached") + } + if err := gvproxy.CheckVersion(); err != nil { + return errors.Wrap(err, "unexpected version of the gvproxy executable") + } + logging.Debug("gvproxy executable already cached") + + return checkCapNetBindService(gvproxy.GetExecutablePath()) + +} + +func fixGVProxyExecutableCached() error { + if version.IsInstaller() { + return nil + } + + gvproxy := cache.NewGvproxyCache() + if err := gvproxy.EnsureIsCached(); err != nil { + return errors.Wrap(err, "Unable to download gvproxy executable") + } + logging.Debug("gvproxy executable cached") + + return setCapNetBindService(gvproxy.GetExecutablePath()) +} + +// Check if macadam executable is cached or not +func checkMacadamExecutableCached() error { + if version.IsInstaller() { + return nil + } + + macadam := cache.NewMacadamCache() + if !macadam.IsCached() { + return fmt.Errorf("macadam executable is not cached") + } + if err := macadam.CheckVersion(); err != nil { + return fmt.Errorf("unexpected version of the macadam executable: %w", err) + } + logging.Debug("macadam executable already cached") + return nil +} + +func fixMacadamExecutableCached() error { + if version.IsInstaller() { + return nil + } + + macadam := cache.NewMacadamCache() + if err := macadam.EnsureIsCached(); err != nil { + return fmt.Errorf("Unable to download macadam executable: %w", err) + } + logging.Debug("macadam executable cached") + return nil +} diff --git a/pkg/crc/preflight/preflight_checks_darwin.go b/pkg/crc/preflight/preflight_checks_darwin.go index 284b96d895..7459312697 100644 --- a/pkg/crc/preflight/preflight_checks_darwin.go +++ b/pkg/crc/preflight/preflight_checks_darwin.go @@ -186,7 +186,7 @@ func checkIfDaemonPlistFileExists() error { if !launchd.AgentRunning(daemonConfig.Label) && !daemonRunning() { return fmt.Errorf("launchd agent '%s' is not running", daemonConfig.Label) } - return nil + return checkHostsAPIToken() } func fixDaemonPlistFileExists() error { @@ -199,14 +199,22 @@ func fixDaemonPlistFileExists() error { if err != nil { return err } - return fixPlistFileExists(*daemonConfig) + if err := fixPlistFileExists(*daemonConfig); err != nil { + return err + } + // Create the hosts API token when setting up the daemon so it exists + // before crc start Secret sync. + return fixHostsAPIToken() } func removeDaemonPlistFile() error { if err := launchd.UnloadPlist(constants.DaemonAgentLabel); err != nil { return err } - return launchd.RemovePlist(constants.DaemonAgentLabel) + if err := launchd.RemovePlist(constants.DaemonAgentLabel); err != nil { + return err + } + return removeHostsAPIToken() } func fixPlistFileExists(agentConfig launchd.AgentConfig) error { diff --git a/pkg/crc/preflight/preflight_checks_linux.go b/pkg/crc/preflight/preflight_checks_linux.go index a613a5f1a5..308a2921a4 100644 --- a/pkg/crc/preflight/preflight_checks_linux.go +++ b/pkg/crc/preflight/preflight_checks_linux.go @@ -1,35 +1,41 @@ package preflight import ( - "bytes" "errors" "fmt" "os" "os/exec" - "os/user" "path/filepath" "regexp" "runtime" "strings" - "text/template" - "github.com/Masterminds/semver/v3" - "github.com/crc-org/crc/v2/pkg/crc/cache" "github.com/crc-org/crc/v2/pkg/crc/constants" "github.com/crc-org/crc/v2/pkg/crc/daemonclient" "github.com/crc-org/crc/v2/pkg/crc/logging" - "github.com/crc-org/crc/v2/pkg/crc/machine/libvirt" + "github.com/crc-org/crc/v2/pkg/crc/macadam" "github.com/crc-org/crc/v2/pkg/crc/systemd" "github.com/crc-org/crc/v2/pkg/crc/systemd/states" crcos "github.com/crc-org/crc/v2/pkg/os" "github.com/crc-org/crc/v2/pkg/os/linux" - "libvirt.org/go/libvirtxml" ) -const ( - // This is defined in https://github.com/crc-org/machine-driver-libvirt/blob/master/go.mod#L5 - minSupportedLibvirtVersion = "8.0.0" -) +// lookupQemuKvm finds the qemu-kvm binary. +// On RHEL, qemu-kvm is located at /usr/libexec/qemu-kvm which is not in PATH. +func lookupQemuKvm() (string, error) { + // First try to find qemu-kvm in PATH + if path, err := exec.LookPath("qemu-kvm"); err == nil { + return path, nil + } + + // On RHEL, qemu-kvm is in /usr/libexec/ which is not in PATH + rhelPath := "/usr/libexec/qemu-kvm" + if _, err := os.Stat(rhelPath); err == nil { + return rhelPath, nil + } + + return "", fmt.Errorf("qemu-kvm not found in PATH or at %s", rhelPath) +} func checkRunningInsideWSL2() error { version, err := os.ReadFile("/proc/version") @@ -61,14 +67,14 @@ func checkVirtualizationEnabled() error { cputype := re.FindString(flags) if cputype == "" { - return fmt.Errorf("virtualization is not available for your CPU") + return fmt.Errorf("Virtualization is not available for your CPU") } logging.Debug("CPU virtualization flags are good") return nil } func fixVirtualizationEnabled() error { - return fmt.Errorf("you need to enable virtualization in BIOS") + return fmt.Errorf("You need to enable virtualization in BIOS") } func checkKvmEnabled() error { @@ -92,12 +98,12 @@ func fixKvmEnabled() error { case strings.Contains(flags, "vmx"): stdOut, stdErr, err := crcos.RunPrivileged("Loading kvm_intel kernel module", "modprobe", "kvm_intel") if err != nil { - return fmt.Errorf("failed to load kvm intel module: %s: %s: %w", stdOut, stdErr, err) + return fmt.Errorf("Failed to load kvm intel module: %s %v: %s", stdOut, err, stdErr) } case strings.Contains(flags, "svm"): stdOut, stdErr, err := crcos.RunPrivileged("Loading kvm_amd kernel module", "modprobe", "kvm_amd") if err != nil { - return fmt.Errorf("failed to load kvm amd module: %s: %s: %w", stdOut, stdErr, err) + return fmt.Errorf("Failed to load kvm amd module: %s %v: %s", stdOut, err, stdErr) } default: logging.Debug("Unable to detect processor details") @@ -107,166 +113,143 @@ func fixKvmEnabled() error { return nil } -func getLibvirtCapabilities() (*libvirtxml.Caps, error) { - stdOut, _, err := crcos.RunWithDefaultLocale("virsh", "--readonly", "--connect", "qemu:///system", "capabilities") - if err != nil { - stdOut, _, err = crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///session", "capabilities") - if err != nil { - return nil, fmt.Errorf("failed to run 'virsh capabilities': %w", err) - } - } - caps := &libvirtxml.Caps{} - err = caps.Unmarshal(stdOut) - if err != nil { - return nil, fmt.Errorf("error parsing 'virsh capabilities': %w", err) +func qemuSystemBinary() string { + switch runtime.GOARCH { + case "arm64": + return "qemu-system-aarch64" + default: + return "qemu-system-x86_64" } - - return caps, nil } -func checkLibvirtInstalled() error { - logging.Debug("Checking if 'virsh' is available") - path, err := exec.LookPath("virsh") - if err != nil { - return fmt.Errorf("libvirt cli virsh was not found in path") - } - logging.Debug("'virsh' was found in ", path) +func checkQemuKvmInstalled() error { + qemuBinary := qemuSystemBinary() + logging.Debugf("Checking if '%s' is available", qemuBinary) - logging.Debug("Checking 'virsh capabilities' for libvirtd/qemu availability") - caps, err := getLibvirtCapabilities() - if err != nil { - return err + // First check in CrcBinDir where we create the symlink (not in PATH) + crcBinPath := filepath.Join(constants.CrcBinDir, qemuBinary) + if _, err := os.Stat(crcBinPath); err == nil { + logging.Debugf("'%s' was found in %s", qemuBinary, crcBinPath) + return nil } - foundHvm := false - for _, guest := range caps.Guests { - if guest.OSType == "hvm" && guest.Arch.Name == caps.Host.CPU.Arch { - logging.Debugf("Found %s hypervisor with 'hvm' capabilities", caps.Host.CPU.Arch) - foundHvm = true - break - } - } - if !foundHvm { - return fmt.Errorf("could not find a %s hypervisor with 'hvm' capabilities", caps.Host.CPU.Arch) + // Fall back to checking in PATH + path, err := exec.LookPath(qemuBinary) + if err != nil { + return fmt.Errorf("%s was not found in path", qemuBinary) } + logging.Debugf("'%s' was found in %s", qemuBinary, path) return nil } -func fixLibvirtInstalled(distro *linux.OsRelease) func() error { +func fixQemuKvmInstalled(distro *linux.OsRelease) func() error { return func() error { - logging.Debug("Trying to install libvirt") - stdOut, stdErr, err := crcos.RunPrivileged("Installing virtualization packages", "/bin/sh", "-c", installLibvirtCommand(distro)) + qemuBinary := qemuSystemBinary() + + // First check if qemu-kvm exists and we can create a symlink + qemuKvmPath, err := lookupQemuKvm() + if err == nil { + logging.Debugf("'qemu-kvm' found at %s, creating symlink for %s", qemuKvmPath, qemuBinary) + symlinkPath := filepath.Join(constants.CrcBinDir, qemuBinary) + + // Ensure CrcBinDir exists + if err := os.MkdirAll(constants.CrcBinDir, 0755); err != nil { + return fmt.Errorf("failed to create directory %s: %v", constants.CrcBinDir, err) + } + + // Remove existing symlink if present + _ = os.Remove(symlinkPath) + + // Create symlink: qemu-system-* -> qemu-kvm + if err := os.Symlink(qemuKvmPath, symlinkPath); err != nil { + return fmt.Errorf("failed to create symlink %s -> %s: %v", symlinkPath, qemuKvmPath, err) + } + logging.Debugf("Created symlink %s -> %s", symlinkPath, qemuKvmPath) + return nil + } + + // qemu-kvm not found, try to install it via package manager + logging.Debug("Trying to install qemu-kvm") + stdOut, stdErr, err := crcos.RunPrivileged("Installing qemu-kvm", "/bin/sh", "-c", installQemuKvmCommand(distro)) if err != nil { - return fmt.Errorf("could not install required packages: %s: %s: %w", stdOut, stdErr, err) + return fmt.Errorf("Could not install qemu-kvm: %s %v: %s", stdOut, err, stdErr) } - logging.Debug("libvirt was successfully installed") + logging.Debug("qemu-kvm was successfully installed") + + // After installation, check again and create symlink if needed + qemuKvmPath, err = lookupQemuKvm() + if err == nil { + symlinkPath := filepath.Join(constants.CrcBinDir, qemuBinary) + if err := os.MkdirAll(constants.CrcBinDir, 0755); err != nil { + return fmt.Errorf("failed to create directory %s: %v", constants.CrcBinDir, err) + } + _ = os.Remove(symlinkPath) + if err := os.Symlink(qemuKvmPath, symlinkPath); err != nil { + return fmt.Errorf("failed to create symlink %s -> %s: %v", symlinkPath, qemuKvmPath, err) + } + logging.Debugf("Created symlink %s -> %s", symlinkPath, qemuKvmPath) + } + return nil } } -func installLibvirtCommand(distro *linux.OsRelease) string { - dnfCommand := "dnf install -y libvirt libvirt-daemon-kvm qemu-kvm" - switch { - case distroIsLike(distro, linux.Ubuntu): - return "apt-get update && apt-get install -y libvirt-daemon libvirt-daemon-system libvirt-clients" - case distroIsLike(distro, linux.Fedora): - return dnfCommand - default: - logging.Warnf("unsupported distribution %s, trying to install libvirt with dnf", distro) - return dnfCommand +func removeQemuKvmSymlink() error { + qemuBinary := qemuSystemBinary() + symlinkPath := filepath.Join(constants.CrcBinDir, qemuBinary) + if err := os.Remove(symlinkPath); err != nil && !os.IsNotExist(err) { + return fmt.Errorf("failed to remove symlink %s: %v", symlinkPath, err) } + logging.Debugf("Removed symlink %s", symlinkPath) + return nil } -func checkLibvirtVersion() error { - logging.Debugf("Checking if libvirt version is >=%s", minSupportedLibvirtVersion) - stdOut, _, err := crcos.RunWithDefaultLocale("virsh", "-v") - if err != nil { - return fmt.Errorf("failed to run virsh") - } - installedLibvirtVersion, err := semver.NewVersion(strings.TrimSpace(stdOut)) - if err != nil { - return fmt.Errorf("unable to parse installed libvirt version: %w", err) - } - supportedLibvirtVersion, err := semver.NewVersion(minSupportedLibvirtVersion) +func checkQemuImgInstalled() error { + logging.Debug("Checking if qemu-img is installed") + path, err := exec.LookPath("qemu-img") if err != nil { - return fmt.Errorf("unable to parse %s libvirt version: %w", minSupportedLibvirtVersion, err) + return fmt.Errorf("qemu-img was not found in path") } - - if installedLibvirtVersion.LessThan(supportedLibvirtVersion) { - return fmt.Errorf("libvirt version %s is installed, but %s or higher is required", installedLibvirtVersion.String(), minSupportedLibvirtVersion) - } - + logging.Debugf("'qemu-img' was found at %s", path) return nil } -func checkUserPartOfLibvirtGroup() error { - logging.Debug("Checking if current user is part of the libvirt group") - - currentUser, err := user.Current() - if err != nil { - logging.Debugf("user.Current() failed: %v", err) - return fmt.Errorf("failed to get current user: %w", err) - } - gids, err := currentUser.GroupIds() - if err != nil { - logging.Debugf("currentUser.GroupIds() failed: %v", err) - return fmt.Errorf("failed to get the groups user '%s' belongs to: %w", currentUser.Username, err) - } - for _, gid := range gids { - group, err := user.LookupGroupId(gid) +func fixQemuImgInstalled(distro *linux.OsRelease) func() error { + return func() error { + logging.Debug("Trying to install qemu-img") + stdOut, stdErr, err := crcos.RunPrivileged("Installing qemu-img", "/bin/sh", "-c", installQemuImgCommand(distro)) if err != nil { - logging.Debugf("Failed to lookup group id %s: %v", gid, err) - continue - } - if group.Name == "libvirt" { - logging.Debug("Current user is already in the libvirt group") - return nil + return fmt.Errorf("Could not install qemu-img: %s %v: %s", stdOut, err, stdErr) } + logging.Debug("qemu-img was successfully installed") + return nil } - - return fmt.Errorf("%s is not part of the libvirt group", currentUser.Username) } -func fixUserPartOfLibvirtGroup() error { - logging.Debug("Adding current user to the libvirt group") - currentUser, err := user.Current() - if err != nil { - logging.Debugf("user.Current() failed: %v", err) - return fmt.Errorf("failed to get current user: %w", err) - } - _, _, err = crcos.RunPrivileged("Adding user to the libvirt group", "usermod", "-a", "-G", "libvirt", currentUser.Username) - if err != nil { - return fmt.Errorf("failed to add user to libvirt group: %w", err) +func installQemuImgCommand(distro *linux.OsRelease) string { + dnfCommand := "dnf install -y qemu-img" + switch { + case distroIsLike(distro, linux.Ubuntu): + return "apt-get update && apt-get install -y qemu-utils" + case distroIsLike(distro, linux.Fedora): + return dnfCommand + default: + logging.Warnf("unsupported distribution %s, trying to install qemu-img with dnf", distro) + return dnfCommand } - logging.Debug("Current user is in the libvirt group") - - return err } -func checkCurrentGroups(distro *linux.OsRelease) func() error { - return func() error { - if !distroIsLike(distro, linux.Ubuntu) { - return nil - } - - // After adding the user to the libvirt group, they need to relogin for the new group to be used by the currrent shell - gids, err := os.Getgroups() - if err != nil { - return err - } - for _, gid := range gids { - group, err := user.LookupGroupId(fmt.Sprintf("%d", gid)) - if err != nil { - logging.Debugf("Failed to lookup group id %d: %v", gid, err) - continue - } - if group.Name == "libvirt" { - logging.Debug("libvirt group is active for the current user/process") - return nil - } - } - return fmt.Errorf("user in the currently active process is not part of the libvirt group") +func installQemuKvmCommand(distro *linux.OsRelease) string { + dnfCommand := "dnf install -y qemu-kvm" + switch { + case distroIsLike(distro, linux.Ubuntu): + return "apt-get update && apt-get install -y qemu-kvm" + case distroIsLike(distro, linux.Fedora): + return dnfCommand + default: + logging.Warnf("unsupported distribution %s, trying to install qemu-kvm with dnf", distro) + return dnfCommand } } @@ -290,27 +273,27 @@ func systemdUnitRunning(sd *systemd.Commander, unitName string) bool { } const ( - vsockUnitName = "crc-vsock.socket" - vsockUnitTemplate = `[Unit] -Description=CRC vsock socket + httpUnitName = "crc-http.socket" + httpUnit = `[Unit] +Description=CRC HTTP socket [Socket] -ListenStream=vsock::%d +ListenStream=%h/.crc/sockets/crc-http.sock Service=crc-daemon.service +SocketMode=0600 +DirectoryMode=0700 [Install] WantedBy=default.target ` - httpUnitName = "crc-http.socket" - httpUnit = `[Unit] -Description=CRC HTTP socket + adminHelperUnitName = "crc-admin-helper.socket" + adminHelperUnit = `[Unit] +Description=CRC admin helper socket [Socket] -ListenStream=%h/.crc/sockets/crc-http.sock +ListenStream=127.0.0.1:9764 Service=crc-daemon.service -SocketMode=0600 -DirectoryMode=0700 [Install] WantedBy=default.target @@ -321,7 +304,7 @@ WantedBy=default.target [Unit] Description=CRC daemon Requires=crc-http.socket -Requires=crc-vsock.socket +Requires=crc-admin-helper.socket [Service] # This allows systemd to know when startup is not complete (for example, because of a preflight failure) @@ -331,8 +314,6 @@ ExecStart=%s daemon ` ) -var vsockUnit = fmt.Sprintf(vsockUnitTemplate, constants.DaemonVsockPort) - func checkSystemdUnit(unitName string, unitContent string, shouldBeRunning bool) error { sd := systemd.NewHostSystemdCommander().User() @@ -360,7 +341,11 @@ func checkDaemonSystemdSockets() error { return err } - return checkSystemdUnit(vsockUnitName, vsockUnit, true) + if err := checkSystemdUnit(adminHelperUnitName, adminHelperUnit, true); err != nil { + return err + } + + return checkHostsAPIToken() } func checkDaemonSystemdService() error { @@ -420,7 +405,13 @@ func fixDaemonSystemdSockets() error { return err } - return fixSystemdUnit(vsockUnitName, vsockUnit, true) + if err := fixSystemdUnit(adminHelperUnitName, adminHelperUnit, true); err != nil { + return err + } + + // Create the hosts API token when setting up the admin-helper socket so it + // exists before socket activation or crc start Secret sync. + return fixHostsAPIToken() } func fixDaemonSystemdService() error { @@ -436,8 +427,9 @@ func removeDaemonSystemdSockets() error { _ = sd.Stop(httpUnitName) os.Remove(systemd.UserUnitPath(httpUnitName)) - _ = sd.Stop(vsockUnitName) - os.Remove(systemd.UserUnitPath(vsockUnitName)) + _ = sd.Stop(adminHelperUnitName) + os.Remove(systemd.UserUnitPath(adminHelperUnitName)) + _ = removeHostsAPIToken() return nil } @@ -459,266 +451,35 @@ func warnNoDaemonAutostart() error { return nil } -func checkLibvirtServiceRunning() error { - logging.Debug("Checking if libvirtd service is running") - sd := systemd.NewHostSystemdCommander() - - libvirtSystemdUnits := []string{"virtqemud.socket", "libvirtd.socket", "virtqemud.service", "libvirtd.service"} - for _, unit := range libvirtSystemdUnits { - if systemdUnitRunning(sd, unit) { - return nil - } - } - - logging.Warnf("No active (running) libvirtd systemd unit could be found - make sure one of libvirt systemd units is enabled so that it's autostarted at boot time.") - return fmt.Errorf("found no active libvirtd systemd unit") -} - -func fixLibvirtServiceRunning() error { - logging.Debug("Starting libvirtd.service") - sd := systemd.NewHostSystemdCommander() - /* split libvirt daemon is a bit tricky to startup properly as we'd - * need to start multiple components by hand, so we just start the - * monolithic daemon - */ - err := sd.Start("libvirtd") - if err != nil { - return fmt.Errorf("failed to start libvirt service") - } - logging.Debug("libvirtd.service is running") - return nil -} - -func checkMachineDriverLibvirtInstalled() error { - machineDriverLibvirt := cache.NewMachineDriverLibvirtCache() - - logging.Debugf("Checking if %s is installed", machineDriverLibvirt.GetExecutableName()) - - if !machineDriverLibvirt.IsCached() { - return fmt.Errorf("%s executable is not cached", machineDriverLibvirt.GetExecutableName()) - } - if err := machineDriverLibvirt.CheckVersion(); err != nil { - return err - } - logging.Debugf("%s is already installed", machineDriverLibvirt.GetExecutableName()) - return nil -} - -func fixMachineDriverLibvirtInstalled() error { - machineDriverLibvirt := cache.NewMachineDriverLibvirtCache() - - logging.Debugf("Installing %s", machineDriverLibvirt.GetExecutableName()) - - if err := machineDriverLibvirt.EnsureIsCached(); err != nil { - return fmt.Errorf("unable to download %s: %w", machineDriverLibvirt.GetExecutableName(), err) - } - logging.Debugf("%s is installed in %s", machineDriverLibvirt.GetExecutableName(), filepath.Dir(machineDriverLibvirt.GetExecutablePath())) - return nil -} - -func checkLibvirtCrcNetworkAvailable() error { - logging.Debug("Checking if libvirt 'crc' network exists") - _, _, err := crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "net-info", "crc") - if err != nil { - return fmt.Errorf("libvirt network crc not found") - } - - return checkLibvirtCrcNetworkDefinition() -} - -func getLibvirtNetworkXML() (string, error) { - config := libvirt.NetworkConfig{ - NetworkName: libvirt.DefaultNetwork, - MAC: libvirt.MACAddress, - IP: libvirt.IPAddress, - } - t, err := template.New("netxml").Parse(libvirt.NetworkTemplate) - if err != nil { - return "", err - } - var netXMLDef strings.Builder - err = t.Execute(&netXMLDef, config) - if err != nil { - return "", err - } - - return netXMLDef.String(), nil -} - -func fixLibvirtCrcNetworkAvailable() error { - logging.Debug("Creating libvirt 'crc' network") - - netXMLDef, err := getLibvirtNetworkXML() - if err != nil { - logging.Debugf("getLibvirtNetworkXML() failed: %v", err) - return fmt.Errorf("failed to read libvirt 'crc' network definition") - } - - // For time being we are going to override the crc network according what we have in our binary template. - // We also don't care about the error or output from those commands atm. - // #nosec G204 - _, _, _ = crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "net-destroy", libvirt.DefaultNetwork) - // #nosec G204 - _, _, _ = crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "net-undefine", libvirt.DefaultNetwork) - // Create the network according to our defined template - cmd := exec.Command("virsh", "--connect", "qemu:///system", "net-define", "/dev/stdin") - cmd.Stdin = strings.NewReader(netXMLDef) - buf := new(bytes.Buffer) - cmd.Stderr = buf - err = cmd.Run() - if err != nil { - logging.Debugf("%v : %s", err, buf.String()) - return fmt.Errorf("failed to create libvirt 'crc' network: %s: %w", buf.String(), err) - } - logging.Debug("libvirt 'crc' network created") - return nil -} - -func removeLibvirtCrcNetwork() error { - logging.Debug("Removing libvirt 'crc' network") - _, _, err := crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "net-info", libvirt.DefaultNetwork) - if err != nil { - // Ignore if no crc network exists for libvirt - // User may have manually deleted the `crc` network from libvirt - return nil - } - _, stderr, err := crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "net-destroy", libvirt.DefaultNetwork) - if err != nil { - logging.Debugf("%v : %s", err, stderr) - return fmt.Errorf("failed to destroy libvirt 'crc' network") - } - - _, stderr, err = crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "net-undefine", libvirt.DefaultNetwork) - if err != nil { - logging.Debugf("%v : %s", err, stderr) - return fmt.Errorf("failed to undefine libvirt 'crc' network") - } - logging.Debug("libvirt 'crc' network removed") - return nil -} - func removeCrcVM() error { - stdout, _, err := crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "domstate", constants.DefaultName) + m := macadam.UseMacadam() + _, err := m.GetVMStatus(constants.DefaultName) if err != nil { // User may have run `crc delete` before `crc cleanup` // in that case there is no crc vm so return early. return nil } - if strings.TrimSpace(stdout) == "running" { - _, stderr, err := crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "destroy", constants.DefaultName) - if err != nil { - logging.Debugf("%v : %s", err, stderr) - return fmt.Errorf("failed to destroy 'crc' VM") - } - } - _, stderr, err := crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "undefine", "--nvram", constants.DefaultName) + _, stderr, err := m.DeleteVM(constants.DefaultName) if err != nil { logging.Debugf("%v : %s", err, stderr) - return fmt.Errorf("failed to undefine 'crc' VM") + return fmt.Errorf("Failed to remove 'crc' VM") } logging.Debug("'crc' VM is removed") return nil } -func removeLibvirtStoragePool() error { - _, stderr, err := crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "pool-info", constants.DefaultName) - if err != nil { - logging.Debugf("%v : %s", err, stderr) - // Pool does not exist - return nil - } - _, stderr, err = crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "pool-destroy", constants.DefaultName) - if err != nil { - logging.Debugf("%v : %s", err, stderr) - // ignore error, we want to try to delete the pool regardless of success or not - } - _, stderr, err = crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "pool-undefine", constants.DefaultName) - if err != nil { - logging.Debugf("%v : %s", err, stderr) - return fmt.Errorf("failed to undefine 'crc' libvirt storage pool") - } - logging.Debug("'crc' libvirt storage has been removed") - return nil -} - -func trimSpacesFromXML(str string) string { - strs := strings.Split(str, "\n") - var builder strings.Builder - for _, s := range strs { - builder.WriteString(strings.TrimSpace(s)) - } - - return builder.String() -} - -func checkLibvirtCrcNetworkDefinition() error { - logging.Debug("Checking if libvirt 'crc' definition is up to date") - stdOut, _, err := crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "net-dumpxml", "--inactive", "crc") - if err != nil { - return fmt.Errorf("failed to get 'crc' network XML: %w", err) - } - stdOut = trimSpacesFromXML(stdOut) - - netXMLDef, err := getLibvirtNetworkXML() - if err != nil { - return fmt.Errorf("failed to generate 'crc' network XML from template: %w", err) - } - netXMLDef = trimSpacesFromXML(netXMLDef) - - if stdOut != netXMLDef { - logging.Debugf("libvirt 'crc' network definition does not have the expected value") - logging.Debugf("expected: %s", netXMLDef) - logging.Debugf("current: %s", stdOut) - return fmt.Errorf("libvirt 'crc' network definition is incorrect") - } - logging.Debugf("libvirt 'crc' network has the expected value") - return nil -} - -func checkLibvirtCrcNetworkActive() error { - logging.Debug("Checking if libvirt 'crc' network is active") - stdOut, _, err := crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "net-info", "crc") - if err != nil { - return fmt.Errorf("failed to query 'crc' network information") - } - outputSlice := strings.Split(stdOut, "\n") - - for _, stdOut = range outputSlice { - stdOut = strings.TrimSpace(stdOut) - if strings.HasPrefix(stdOut, "Active") && strings.Contains(stdOut, "yes") { - logging.Debug("libvirt 'crc' network is already active") - return nil - } - } - return fmt.Errorf("libvirt crc network is not active") -} - -func fixLibvirtCrcNetworkActive() error { - logging.Debug("Starting libvirt 'crc' network") - stdOut, stdErr, err := crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "net-start", "crc") - if err != nil { - return fmt.Errorf("failed to start libvirt 'crc' network: %s: %s: %w", stdOut, stdErr, err) - } - stdOut, stdErr, err = crcos.RunWithDefaultLocale("virsh", "--connect", "qemu:///system", "net-autostart", "crc") - if err != nil { - return fmt.Errorf("failed to autostart libvirt 'crc' network: %s: %s: %w", stdOut, stdErr, err) - } - logging.Debug("libvirt 'crc' network started") - return nil -} - func getCPUFlags() (string, error) { // Check if the cpu flags vmx or svm is present out, err := os.ReadFile("/proc/cpuinfo") if err != nil { logging.Debugf("Failed to read /proc/cpuinfo: %v", err) - return "", fmt.Errorf("failed to read /proc/cpuinfo") + return "", fmt.Errorf("Failed to read /proc/cpuinfo") } re := regexp.MustCompile(`flags.*:.*`) flags := re.FindString(string(out)) if flags == "" { - return "", fmt.Errorf("could not find cpu flags from /proc/cpuinfo") + return "", fmt.Errorf("Could not find cpu flags from /proc/cpuinfo") } return flags, nil } diff --git a/pkg/crc/preflight/preflight_checks_unix.go b/pkg/crc/preflight/preflight_checks_unix.go index acdca76e3f..ed6d08bbd7 100644 --- a/pkg/crc/preflight/preflight_checks_unix.go +++ b/pkg/crc/preflight/preflight_checks_unix.go @@ -12,6 +12,7 @@ import ( "github.com/crc-org/crc/v2/pkg/crc/cache" "github.com/crc-org/crc/v2/pkg/crc/constants" + "github.com/crc-org/crc/v2/pkg/crc/hostsapi" "github.com/crc-org/crc/v2/pkg/crc/logging" crcpreset "github.com/crc-org/crc/v2/pkg/crc/preset" "github.com/crc-org/crc/v2/pkg/crc/version" @@ -200,3 +201,33 @@ func removeCrcSymlink() error { } return nil } +func checkHostsAPIToken() error { + info, err := os.Stat(constants.HostsAPITokenPath) + if os.IsNotExist(err) { + return fmt.Errorf("hosts API token file does not exist at %s", constants.HostsAPITokenPath) + } + if err != nil { + return err + } + if !info.Mode().IsRegular() { + return fmt.Errorf("hosts API token path is not a regular file: %s", constants.HostsAPITokenPath) + } + if info.Size() == 0 { + return fmt.Errorf("hosts API token file is empty: %s", constants.HostsAPITokenPath) + } + return nil +} + +func fixHostsAPIToken() error { + if _, err := hostsapi.LoadOrCreateToken(constants.HostsAPITokenPath); err != nil { + return fmt.Errorf("failed to create hosts API token: %w", err) + } + return nil +} + +func removeHostsAPIToken() error { + if err := os.Remove(constants.HostsAPITokenPath); err != nil && !os.IsNotExist(err) { + return err + } + return nil +} diff --git a/pkg/crc/preflight/preflight_darwin.go b/pkg/crc/preflight/preflight_darwin.go index efc3e63abc..ad50ec4ab9 100644 --- a/pkg/crc/preflight/preflight_darwin.go +++ b/pkg/crc/preflight/preflight_darwin.go @@ -123,6 +123,8 @@ func getChecks(_ network.Mode, bundlePath string, preset crcpreset.Preset, enabl checks = append(checks, vfkitPreflightChecks...) checks = append(checks, resolverPreflightChecks...) checks = append(checks, bundleCheck(bundlePath, preset, enableBundleQuayFallback)) + checks = append(checks, gvproxyCheck()) + checks = append(checks, macadamCheck()) checks = append(checks, trayLaunchdCleanupChecks...) checks = append(checks, daemonLaunchdChecks...) checks = append(checks, sshPortCheck()) @@ -136,3 +138,14 @@ func getPreflightChecks(_ bool, mode network.Mode, bundlePath string, preset crc return filter.Apply(getChecks(mode, bundlePath, preset, enableBundleQuayFallback)) } + +// Capability functions are no-ops on Darwin (macOS doesn't use Linux capabilities) +func setCapNetBindService(path string) error { + // Not needed on Darwin + return nil +} + +func checkCapNetBindService(path string) error { + // Not needed on Darwin + return nil +} diff --git a/pkg/crc/preflight/preflight_darwin_test.go b/pkg/crc/preflight/preflight_darwin_test.go index d696176469..71d3ca3228 100644 --- a/pkg/crc/preflight/preflight_darwin_test.go +++ b/pkg/crc/preflight/preflight_darwin_test.go @@ -13,13 +13,13 @@ import ( func TestCountConfigurationOptions(t *testing.T) { cfg := config.New(config.NewEmptyInMemoryStorage(), config.NewEmptyInMemorySecretStorage()) RegisterSettings(cfg) - assert.Len(t, cfg.AllConfigs(), 13) + assert.Len(t, cfg.AllConfigs(), 15) } func TestCountPreflights(t *testing.T) { - assert.Len(t, getPreflightChecks(false, network.SystemNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 20) - assert.Len(t, getPreflightChecks(true, network.SystemNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 20) + assert.Len(t, getPreflightChecks(true, network.SystemNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 22) + assert.Len(t, getPreflightChecks(true, network.SystemNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 22) - assert.Len(t, getPreflightChecks(false, network.UserNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 19) - assert.Len(t, getPreflightChecks(true, network.UserNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 19) + assert.Len(t, getPreflightChecks(true, network.UserNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 21) + assert.Len(t, getPreflightChecks(true, network.UserNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 21) } diff --git a/pkg/crc/preflight/preflight_linux.go b/pkg/crc/preflight/preflight_linux.go index fd89e6319a..ffe589ccdc 100644 --- a/pkg/crc/preflight/preflight_linux.go +++ b/pkg/crc/preflight/preflight_linux.go @@ -1,9 +1,7 @@ package preflight import ( - "errors" "fmt" - "os" "strings" "github.com/crc-org/crc/v2/pkg/crc/constants" @@ -13,11 +11,9 @@ import ( crcpreset "github.com/crc-org/crc/v2/pkg/crc/preset" crcos "github.com/crc-org/crc/v2/pkg/os" "github.com/crc-org/crc/v2/pkg/os/linux" - - "golang.org/x/sys/unix" ) -func libvirtPreflightChecks(distro *linux.OsRelease) []Check { +func qemuPreflightChecks(distro *linux.OsRelease) []Check { checks := []Check{ { configKeySuffix: "check-virt-enabled", @@ -38,63 +34,22 @@ func libvirtPreflightChecks(distro *linux.OsRelease) []Check { labels: labels{Os: Linux}, }, { - configKeySuffix: "check-libvirt-installed", - checkDescription: "Checking if libvirt is installed", - check: checkLibvirtInstalled, - fixDescription: "Installing libvirt service and dependencies", - fix: fixLibvirtInstalled(distro), - - labels: labels{Os: Linux}, - }, - { - configKeySuffix: "check-user-in-libvirt-group", - checkDescription: "Checking if user is part of libvirt group", - check: checkUserPartOfLibvirtGroup, - fixDescription: "Adding user to libvirt group", - fix: fixUserPartOfLibvirtGroup, - - labels: labels{Os: Linux}, - }, - { - configKeySuffix: "check-libvirt-group-active", - checkDescription: "Checking if active user/process is currently part of the libvirt group", - check: checkCurrentGroups(distro), - fixDescription: "You need to logout, re-login, and run crc setup again before the user is effectively a member of the 'libvirt' group.", - flags: NoFix, - - labels: labels{Os: Linux}, - }, - { - configKeySuffix: "check-libvirt-running", - checkDescription: "Checking if libvirt daemon is running", - check: checkLibvirtServiceRunning, - fixDescription: "Starting libvirt service", - fix: fixLibvirtServiceRunning, - - labels: labels{Os: Linux}, - }, - { - configKeySuffix: "check-libvirt-version", - checkDescription: "Checking if a supported libvirt version is installed", - check: checkLibvirtVersion, - fixDescription: fmt.Sprintf("libvirt v%s or newer is required and must be updated manually", minSupportedLibvirtVersion), - flags: NoFix, - - labels: labels{Os: Linux}, - }, - { - configKeySuffix: "check-libvirt-driver", - checkDescription: "Checking if crc-driver-libvirt is installed", - check: checkMachineDriverLibvirtInstalled, - fixDescription: "Installing crc-driver-libvirt", - fix: fixMachineDriverLibvirtInstalled, + configKeySuffix: "check-qemu-kvm-installed", + checkDescription: "Checking if qemu-kvm is installed", + check: checkQemuKvmInstalled, + fixDescription: "Installing qemu-kvm", + fix: fixQemuKvmInstalled(distro), + cleanupDescription: "Removing qemu-kvm symlink", + cleanup: removeQemuKvmSymlink, labels: labels{Os: Linux}, }, { - cleanupDescription: "Removing crc libvirt storage pool", - cleanup: removeLibvirtStoragePool, - flags: CleanUpOnly, + configKeySuffix: "check-qemu-img-installed", + checkDescription: "Checking if qemu-img is installed", + check: checkQemuImgInstalled, + fixDescription: "Installing qemu-img", + fix: fixQemuImgInstalled(distro), labels: labels{Os: Linux}, }, @@ -138,39 +93,12 @@ func libvirtPreflightChecks(distro *linux.OsRelease) []Check { return checks } -var libvirtNetworkPreflightChecks = []Check{ - { - configKeySuffix: "check-crc-network", - checkDescription: "Checking if libvirt 'crc' network is available", - check: checkLibvirtCrcNetworkAvailable, - fixDescription: "Setting up libvirt 'crc' network", - fix: fixLibvirtCrcNetworkAvailable, - cleanupDescription: "Removing 'crc' network from libvirt", - cleanup: removeLibvirtCrcNetwork, - - labels: labels{Os: Linux, NetworkMode: System}, - }, - { - configKeySuffix: "check-crc-network-active", - checkDescription: "Checking if libvirt 'crc' network is active", - check: checkLibvirtCrcNetworkActive, - fixDescription: "Starting libvirt 'crc' network", - fix: fixLibvirtCrcNetworkActive, - - labels: labels{Os: Linux, NetworkMode: System}, - }, -} - var vsockPreflightCheck = Check{ - configKeySuffix: "check-vsock", - checkDescription: "Checking if vsock is correctly configured", - check: checkVsock, - fixDescription: "Setting up vsock support", - fix: fixVsock, cleanupDescription: "Removing vsock configuration", cleanup: removeVsockCrcSettings, + flags: CleanUpOnly, - labels: labels{Os: Linux, NetworkMode: User}, + labels: labels{Os: Linux}, } var wsl2PreflightCheck = Check{ @@ -189,83 +117,6 @@ const ( vsockModuleAutoLoadConfPath = "/etc/modules-load.d/vhost_vsock.conf" ) -func checkVsock() error { - executable, err := os.Executable() - if err != nil { - return err - } - getcap, _, err := crcos.RunWithDefaultLocale("getcap", executable) - if err != nil { - return err - } - if !strings.Contains(getcap, "cap_net_bind_service+eip") && - !strings.Contains(getcap, "cap_net_bind_service=eip") { - return fmt.Errorf("capabilities are not correct for %s", executable) - } - - // This test is needed in order to trigger the move of the udev rule to its new location. - // The old location was used in the 1.21 release. - if !crcos.FileExists(vsockUdevLocalAdminRulesPath) { - return errors.New("vsock udev rule does not exist") - } - - err = unix.Access("/dev/vsock", unix.R_OK|unix.W_OK) - if err != nil { - return errors.New("/dev/vsock is not readable by the current user") - } - return nil -} - -func fixVsock() error { - executable, err := os.Executable() - if err != nil { - return err - } - _, _, err = crcos.RunPrivileged(fmt.Sprintf("Setting CAP_NET_BIND_SERVICE capability for %s executable", executable), "setcap", "cap_net_bind_service=+eip", executable) - if err != nil { - return err - } - - // Remove udev rule which was used in crc 1.21 - it's been moved to a new location - err = crcos.RemoveFileAsRoot( - fmt.Sprintf("Removing udev rule in %s", vsockUdevSystemRulesPath), - vsockUdevSystemRulesPath, - ) - if err != nil { - return err - } - udevRule := `KERNEL=="vsock", MODE="0660", OWNER="root", GROUP="libvirt"` - if crcos.FileContentMatches(vsockUdevLocalAdminRulesPath, []byte(udevRule)) != nil { - err = crcos.WriteToFileAsRoot("Creating udev rule for /dev/vsock", udevRule, vsockUdevLocalAdminRulesPath, 0644) - if err != nil { - return err - } - _, _, err = crcos.RunPrivileged("Reloading udev rules database", "udevadm", "control", "--reload") - if err != nil { - return err - } - } - if crcos.FileExists("/dev/vsock") && unix.Access("/dev/vsock", unix.R_OK|unix.W_OK) != nil { - _, _, err = crcos.RunPrivileged("Applying udev rule to /dev/vsock", "udevadm", "trigger", "/dev/vsock") - if err != nil { - return err - } - } else { - _, _, err = crcos.RunPrivileged("Loading vhost_vsock kernel module", "modprobe", "vhost_vsock") - if err != nil { - return err - } - } - - if crcos.FileContentMatches(vsockModuleAutoLoadConfPath, []byte("vhost_vsock")) != nil { - err = crcos.WriteToFileAsRoot(fmt.Sprintf("Creating file %s", vsockModuleAutoLoadConfPath), "vhost_vsock", vsockModuleAutoLoadConfPath, 0644) - if err != nil { - return err - } - } - return nil -} - func removeVsockCrcSettings() error { var mErr crcErrors.MultiError err := crcos.RemoveFileAsRoot(fmt.Sprintf("Removing udev rule in %s", vsockUdevSystemRulesPath), vsockUdevSystemRulesPath) @@ -367,13 +218,14 @@ func getChecks(distro *linux.OsRelease, bundlePath string, preset crcpreset.Pres checks = append(checks, wsl2PreflightCheck) checks = append(checks, genericPreflightChecks(preset)...) checks = append(checks, memoryCheck(preset)) + checks = append(checks, gvproxyCheck()) + checks = append(checks, macadamCheck()) checks = append(checks, genericCleanupChecks...) - checks = append(checks, libvirtPreflightChecks(distro)...) + checks = append(checks, qemuPreflightChecks(distro)...) checks = append(checks, ubuntuPreflightChecks...) checks = append(checks, nmPreflightChecks...) checks = append(checks, systemdResolvedPreflightChecks...) checks = append(checks, dnsmasqPreflightChecks...) - checks = append(checks, libvirtNetworkPreflightChecks...) checks = append(checks, vsockPreflightCheck) checks = append(checks, bundleCheck(bundlePath, preset, enableBundleQuayFallback)) @@ -407,3 +259,47 @@ func distro() *linux.OsRelease { } return distro } + +// setCapabilities sets Linux capabilities on a binary +// capString should be in the format accepted by setcap, e.g. "cap_net_bind_service=+ep" +func setCapabilities(path, capString string) error { + logging.Debugf("Setting capabilities '%s' on %s", capString, path) + + _, _, err := crcos.RunPrivileged( + fmt.Sprintf("Setting capability for %s", path), + "setcap", capString, path) + if err != nil { + return fmt.Errorf("unable to set capability on %s: %v", path, err) + } + return nil +} + +// checkCapabilities checks if a binary has specific Linux capabilities +// expectedCaps is a list of capability strings to check for (e.g., "cap_net_bind_service+ep") +func checkCapabilities(path string, expectedCaps ...string) error { + stdOut, _, err := crcos.RunWithDefaultLocale("getcap", path) + if err != nil { + return fmt.Errorf("unable to check capabilities on %s: %v", path, err) + } + + // Check if any of the expected capability strings are present + for _, cap := range expectedCaps { + if strings.Contains(stdOut, cap) { + return nil + } + } + + return fmt.Errorf("%s does not have expected capabilities (got: %s, expected one of: %v)", path, stdOut, expectedCaps) +} + +// setCapNetBindService sets the CAP_NET_BIND_SERVICE capability on a binary +// This allows it to bind to privileged ports (< 1024) without running as root +func setCapNetBindService(path string) error { + return setCapabilities(path, "cap_net_bind_service=+ep") +} + +// checkCapNetBindService checks if the CAP_NET_BIND_SERVICE capability is set on a binary +func checkCapNetBindService(path string) error { + // Accept both +ep and =ep formats + return checkCapabilities(path, "cap_net_bind_service+ep", "cap_net_bind_service=ep") +} diff --git a/pkg/crc/preflight/preflight_linux_test.go b/pkg/crc/preflight/preflight_linux_test.go index 5909f82eeb..06ad3a2783 100644 --- a/pkg/crc/preflight/preflight_linux_test.go +++ b/pkg/crc/preflight/preflight_linux_test.go @@ -70,6 +70,8 @@ var checkListForDistros = []checkListForDistro{ {check: checkSupportedCPUArch}, {check: checkCrcSymlink}, {configKeySuffix: "check-ram"}, + {check: checkGVProxyExecutableCached}, + {check: checkMacadamExecutableCached}, {cleanup: removeCRCMachinesDir}, {cleanup: removeAllLogs}, {cleanup: cluster.ForgetPullSecret}, @@ -78,13 +80,8 @@ var checkListForDistros = []checkListForDistro{ {cleanup: removeCrcManPages}, {check: checkVirtualizationEnabled}, {check: checkKvmEnabled}, - {check: checkLibvirtInstalled}, - {check: checkUserPartOfLibvirtGroup}, - {configKeySuffix: "check-libvirt-group-active"}, - {check: checkLibvirtServiceRunning}, - {check: checkLibvirtVersion}, - {check: checkMachineDriverLibvirtInstalled}, - {cleanup: removeLibvirtStoragePool}, + {check: checkQemuKvmInstalled}, + {check: checkQemuImgInstalled}, {cleanup: removeCrcVM}, {check: checkDaemonSystemdService}, {check: checkDaemonSystemdSockets}, @@ -94,8 +91,7 @@ var checkListForDistros = []checkListForDistro{ {check: checkCrcDnsmasqAndNetworkManagerConfigFile}, {check: checkSystemdResolvedIsRunning}, {check: checkCrcNetworkManagerDispatcherFile}, - {check: checkLibvirtCrcNetworkAvailable}, - {check: checkLibvirtCrcNetworkActive}, + {cleanup: removeVsockCrcSettings}, {configKeySuffix: "check-bundle-extracted"}, }, }, @@ -110,6 +106,8 @@ var checkListForDistros = []checkListForDistro{ {check: checkSupportedCPUArch}, {check: checkCrcSymlink}, {configKeySuffix: "check-ram"}, + {check: checkGVProxyExecutableCached}, + {check: checkMacadamExecutableCached}, {cleanup: removeCRCMachinesDir}, {cleanup: removeAllLogs}, {cleanup: cluster.ForgetPullSecret}, @@ -118,13 +116,8 @@ var checkListForDistros = []checkListForDistro{ {cleanup: removeCrcManPages}, {check: checkVirtualizationEnabled}, {check: checkKvmEnabled}, - {check: checkLibvirtInstalled}, - {check: checkUserPartOfLibvirtGroup}, - {configKeySuffix: "check-libvirt-group-active"}, - {check: checkLibvirtServiceRunning}, - {check: checkLibvirtVersion}, - {check: checkMachineDriverLibvirtInstalled}, - {cleanup: removeLibvirtStoragePool}, + {check: checkQemuKvmInstalled}, + {check: checkQemuImgInstalled}, {cleanup: removeCrcVM}, {check: checkDaemonSystemdService}, {check: checkDaemonSystemdSockets}, @@ -133,8 +126,7 @@ var checkListForDistros = []checkListForDistro{ {check: checkNetworkManagerIsRunning}, {check: checkCrcNetworkManagerConfig}, {check: checkCrcDnsmasqConfigFile}, - {check: checkLibvirtCrcNetworkAvailable}, - {check: checkLibvirtCrcNetworkActive}, + {cleanup: removeVsockCrcSettings}, {configKeySuffix: "check-bundle-extracted"}, }, }, @@ -149,6 +141,8 @@ var checkListForDistros = []checkListForDistro{ {check: checkSupportedCPUArch}, {check: checkCrcSymlink}, {configKeySuffix: "check-ram"}, + {check: checkGVProxyExecutableCached}, + {check: checkMacadamExecutableCached}, {cleanup: removeCRCMachinesDir}, {cleanup: removeAllLogs}, {cleanup: cluster.ForgetPullSecret}, @@ -157,17 +151,12 @@ var checkListForDistros = []checkListForDistro{ {cleanup: removeCrcManPages}, {check: checkVirtualizationEnabled}, {check: checkKvmEnabled}, - {check: checkLibvirtInstalled}, - {check: checkUserPartOfLibvirtGroup}, - {configKeySuffix: "check-libvirt-group-active"}, - {check: checkLibvirtServiceRunning}, - {check: checkLibvirtVersion}, - {check: checkMachineDriverLibvirtInstalled}, - {cleanup: removeLibvirtStoragePool}, + {check: checkQemuKvmInstalled}, + {check: checkQemuImgInstalled}, {cleanup: removeCrcVM}, {check: checkDaemonSystemdService}, {check: checkDaemonSystemdSockets}, - {check: checkVsock}, + {cleanup: removeVsockCrcSettings}, {configKeySuffix: "check-bundle-extracted"}, }, }, @@ -182,6 +171,8 @@ var checkListForDistros = []checkListForDistro{ {check: checkSupportedCPUArch}, {check: checkCrcSymlink}, {configKeySuffix: "check-ram"}, + {check: checkGVProxyExecutableCached}, + {check: checkMacadamExecutableCached}, {cleanup: removeCRCMachinesDir}, {cleanup: removeAllLogs}, {cleanup: cluster.ForgetPullSecret}, @@ -190,13 +181,8 @@ var checkListForDistros = []checkListForDistro{ {cleanup: removeCrcManPages}, {check: checkVirtualizationEnabled}, {check: checkKvmEnabled}, - {check: checkLibvirtInstalled}, - {check: checkUserPartOfLibvirtGroup}, - {configKeySuffix: "check-libvirt-group-active"}, - {check: checkLibvirtServiceRunning}, - {check: checkLibvirtVersion}, - {check: checkMachineDriverLibvirtInstalled}, - {cleanup: removeLibvirtStoragePool}, + {check: checkQemuKvmInstalled}, + {check: checkQemuImgInstalled}, {cleanup: removeCrcVM}, {check: checkDaemonSystemdService}, {check: checkDaemonSystemdSockets}, @@ -206,8 +192,7 @@ var checkListForDistros = []checkListForDistro{ {check: checkCrcDnsmasqAndNetworkManagerConfigFile}, {check: checkSystemdResolvedIsRunning}, {check: checkCrcNetworkManagerDispatcherFile}, - {check: checkLibvirtCrcNetworkAvailable}, - {check: checkLibvirtCrcNetworkActive}, + {cleanup: removeVsockCrcSettings}, {configKeySuffix: "check-bundle-extracted"}, }, }, @@ -222,6 +207,8 @@ var checkListForDistros = []checkListForDistro{ {check: checkSupportedCPUArch}, {check: checkCrcSymlink}, {configKeySuffix: "check-ram"}, + {check: checkGVProxyExecutableCached}, + {check: checkMacadamExecutableCached}, {cleanup: removeCRCMachinesDir}, {cleanup: removeAllLogs}, {cleanup: cluster.ForgetPullSecret}, @@ -230,13 +217,8 @@ var checkListForDistros = []checkListForDistro{ {cleanup: removeCrcManPages}, {check: checkVirtualizationEnabled}, {check: checkKvmEnabled}, - {check: checkLibvirtInstalled}, - {check: checkUserPartOfLibvirtGroup}, - {configKeySuffix: "check-libvirt-group-active"}, - {check: checkLibvirtServiceRunning}, - {check: checkLibvirtVersion}, - {check: checkMachineDriverLibvirtInstalled}, - {cleanup: removeLibvirtStoragePool}, + {check: checkQemuKvmInstalled}, + {check: checkQemuImgInstalled}, {cleanup: removeCrcVM}, {check: checkDaemonSystemdService}, {check: checkDaemonSystemdSockets}, @@ -245,8 +227,7 @@ var checkListForDistros = []checkListForDistro{ {check: checkNetworkManagerIsRunning}, {check: checkCrcNetworkManagerConfig}, {check: checkCrcDnsmasqConfigFile}, - {check: checkLibvirtCrcNetworkAvailable}, - {check: checkLibvirtCrcNetworkActive}, + {cleanup: removeVsockCrcSettings}, {configKeySuffix: "check-bundle-extracted"}, }, }, @@ -261,6 +242,8 @@ var checkListForDistros = []checkListForDistro{ {check: checkSupportedCPUArch}, {check: checkCrcSymlink}, {configKeySuffix: "check-ram"}, + {check: checkGVProxyExecutableCached}, + {check: checkMacadamExecutableCached}, {cleanup: removeCRCMachinesDir}, {cleanup: removeAllLogs}, {cleanup: cluster.ForgetPullSecret}, @@ -269,17 +252,12 @@ var checkListForDistros = []checkListForDistro{ {cleanup: removeCrcManPages}, {check: checkVirtualizationEnabled}, {check: checkKvmEnabled}, - {check: checkLibvirtInstalled}, - {check: checkUserPartOfLibvirtGroup}, - {configKeySuffix: "check-libvirt-group-active"}, - {check: checkLibvirtServiceRunning}, - {check: checkLibvirtVersion}, - {check: checkMachineDriverLibvirtInstalled}, - {cleanup: removeLibvirtStoragePool}, + {check: checkQemuKvmInstalled}, + {check: checkQemuImgInstalled}, {cleanup: removeCrcVM}, {check: checkDaemonSystemdService}, {check: checkDaemonSystemdSockets}, - {check: checkVsock}, + {cleanup: removeVsockCrcSettings}, {configKeySuffix: "check-bundle-extracted"}, }, }, @@ -294,6 +272,8 @@ var checkListForDistros = []checkListForDistro{ {check: checkSupportedCPUArch}, {check: checkCrcSymlink}, {configKeySuffix: "check-ram"}, + {check: checkGVProxyExecutableCached}, + {check: checkMacadamExecutableCached}, {cleanup: removeCRCMachinesDir}, {cleanup: removeAllLogs}, {cleanup: cluster.ForgetPullSecret}, @@ -302,13 +282,8 @@ var checkListForDistros = []checkListForDistro{ {cleanup: removeCrcManPages}, {check: checkVirtualizationEnabled}, {check: checkKvmEnabled}, - {check: checkLibvirtInstalled}, - {check: checkUserPartOfLibvirtGroup}, - {configKeySuffix: "check-libvirt-group-active"}, - {check: checkLibvirtServiceRunning}, - {check: checkLibvirtVersion}, - {check: checkMachineDriverLibvirtInstalled}, - {cleanup: removeLibvirtStoragePool}, + {check: checkQemuKvmInstalled}, + {check: checkQemuImgInstalled}, {cleanup: removeCrcVM}, {check: checkDaemonSystemdService}, {check: checkDaemonSystemdSockets}, @@ -318,8 +293,7 @@ var checkListForDistros = []checkListForDistro{ {check: checkCrcDnsmasqAndNetworkManagerConfigFile}, {check: checkSystemdResolvedIsRunning}, {check: checkCrcNetworkManagerDispatcherFile}, - {check: checkLibvirtCrcNetworkAvailable}, - {check: checkLibvirtCrcNetworkActive}, + {cleanup: removeVsockCrcSettings}, {configKeySuffix: "check-bundle-extracted"}, }, }, @@ -334,6 +308,8 @@ var checkListForDistros = []checkListForDistro{ {check: checkSupportedCPUArch}, {check: checkCrcSymlink}, {configKeySuffix: "check-ram"}, + {check: checkGVProxyExecutableCached}, + {check: checkMacadamExecutableCached}, {cleanup: removeCRCMachinesDir}, {cleanup: removeAllLogs}, {cleanup: cluster.ForgetPullSecret}, @@ -342,13 +318,8 @@ var checkListForDistros = []checkListForDistro{ {cleanup: removeCrcManPages}, {check: checkVirtualizationEnabled}, {check: checkKvmEnabled}, - {check: checkLibvirtInstalled}, - {check: checkUserPartOfLibvirtGroup}, - {configKeySuffix: "check-libvirt-group-active"}, - {check: checkLibvirtServiceRunning}, - {check: checkLibvirtVersion}, - {check: checkMachineDriverLibvirtInstalled}, - {cleanup: removeLibvirtStoragePool}, + {check: checkQemuKvmInstalled}, + {check: checkQemuImgInstalled}, {cleanup: removeCrcVM}, {check: checkDaemonSystemdService}, {check: checkDaemonSystemdSockets}, @@ -357,8 +328,7 @@ var checkListForDistros = []checkListForDistro{ {check: checkNetworkManagerIsRunning}, {check: checkCrcNetworkManagerConfig}, {check: checkCrcDnsmasqConfigFile}, - {check: checkLibvirtCrcNetworkAvailable}, - {check: checkLibvirtCrcNetworkActive}, + {cleanup: removeVsockCrcSettings}, {configKeySuffix: "check-bundle-extracted"}, }, }, @@ -373,6 +343,8 @@ var checkListForDistros = []checkListForDistro{ {check: checkSupportedCPUArch}, {check: checkCrcSymlink}, {configKeySuffix: "check-ram"}, + {check: checkGVProxyExecutableCached}, + {check: checkMacadamExecutableCached}, {cleanup: removeCRCMachinesDir}, {cleanup: removeAllLogs}, {cleanup: cluster.ForgetPullSecret}, @@ -381,17 +353,12 @@ var checkListForDistros = []checkListForDistro{ {cleanup: removeCrcManPages}, {check: checkVirtualizationEnabled}, {check: checkKvmEnabled}, - {check: checkLibvirtInstalled}, - {check: checkUserPartOfLibvirtGroup}, - {configKeySuffix: "check-libvirt-group-active"}, - {check: checkLibvirtServiceRunning}, - {check: checkLibvirtVersion}, - {check: checkMachineDriverLibvirtInstalled}, - {cleanup: removeLibvirtStoragePool}, + {check: checkQemuKvmInstalled}, + {check: checkQemuImgInstalled}, {cleanup: removeCrcVM}, {check: checkDaemonSystemdService}, {check: checkDaemonSystemdSockets}, - {check: checkVsock}, + {cleanup: removeVsockCrcSettings}, {configKeySuffix: "check-bundle-extracted"}, }, }, @@ -406,6 +373,8 @@ var checkListForDistros = []checkListForDistro{ {check: checkSupportedCPUArch}, {check: checkCrcSymlink}, {configKeySuffix: "check-ram"}, + {check: checkGVProxyExecutableCached}, + {check: checkMacadamExecutableCached}, {cleanup: removeCRCMachinesDir}, {cleanup: removeAllLogs}, {cleanup: cluster.ForgetPullSecret}, @@ -414,13 +383,8 @@ var checkListForDistros = []checkListForDistro{ {cleanup: removeCrcManPages}, {check: checkVirtualizationEnabled}, {check: checkKvmEnabled}, - {check: checkLibvirtInstalled}, - {check: checkUserPartOfLibvirtGroup}, - {configKeySuffix: "check-libvirt-group-active"}, - {check: checkLibvirtServiceRunning}, - {check: checkLibvirtVersion}, - {check: checkMachineDriverLibvirtInstalled}, - {cleanup: removeLibvirtStoragePool}, + {check: checkQemuKvmInstalled}, + {check: checkQemuImgInstalled}, {cleanup: removeCrcVM}, {check: checkDaemonSystemdService}, {check: checkDaemonSystemdSockets}, @@ -431,8 +395,7 @@ var checkListForDistros = []checkListForDistro{ {check: checkCrcDnsmasqAndNetworkManagerConfigFile}, {check: checkSystemdResolvedIsRunning}, {check: checkCrcNetworkManagerDispatcherFile}, - {check: checkLibvirtCrcNetworkAvailable}, - {check: checkLibvirtCrcNetworkActive}, + {cleanup: removeVsockCrcSettings}, {configKeySuffix: "check-bundle-extracted"}, }, }, @@ -447,6 +410,8 @@ var checkListForDistros = []checkListForDistro{ {check: checkSupportedCPUArch}, {check: checkCrcSymlink}, {configKeySuffix: "check-ram"}, + {check: checkGVProxyExecutableCached}, + {check: checkMacadamExecutableCached}, {cleanup: removeCRCMachinesDir}, {cleanup: removeAllLogs}, {cleanup: cluster.ForgetPullSecret}, @@ -455,13 +420,8 @@ var checkListForDistros = []checkListForDistro{ {cleanup: removeCrcManPages}, {check: checkVirtualizationEnabled}, {check: checkKvmEnabled}, - {check: checkLibvirtInstalled}, - {check: checkUserPartOfLibvirtGroup}, - {configKeySuffix: "check-libvirt-group-active"}, - {check: checkLibvirtServiceRunning}, - {check: checkLibvirtVersion}, - {check: checkMachineDriverLibvirtInstalled}, - {cleanup: removeLibvirtStoragePool}, + {check: checkQemuKvmInstalled}, + {check: checkQemuImgInstalled}, {cleanup: removeCrcVM}, {check: checkDaemonSystemdService}, {check: checkDaemonSystemdSockets}, @@ -471,8 +431,7 @@ var checkListForDistros = []checkListForDistro{ {check: checkNetworkManagerIsRunning}, {check: checkCrcNetworkManagerConfig}, {check: checkCrcDnsmasqConfigFile}, - {check: checkLibvirtCrcNetworkAvailable}, - {check: checkLibvirtCrcNetworkActive}, + {cleanup: removeVsockCrcSettings}, {configKeySuffix: "check-bundle-extracted"}, }, }, @@ -487,6 +446,8 @@ var checkListForDistros = []checkListForDistro{ {check: checkSupportedCPUArch}, {check: checkCrcSymlink}, {configKeySuffix: "check-ram"}, + {check: checkGVProxyExecutableCached}, + {check: checkMacadamExecutableCached}, {cleanup: removeCRCMachinesDir}, {cleanup: removeAllLogs}, {cleanup: cluster.ForgetPullSecret}, @@ -495,18 +456,13 @@ var checkListForDistros = []checkListForDistro{ {cleanup: removeCrcManPages}, {check: checkVirtualizationEnabled}, {check: checkKvmEnabled}, - {check: checkLibvirtInstalled}, - {check: checkUserPartOfLibvirtGroup}, - {configKeySuffix: "check-libvirt-group-active"}, - {check: checkLibvirtServiceRunning}, - {check: checkLibvirtVersion}, - {check: checkMachineDriverLibvirtInstalled}, - {cleanup: removeLibvirtStoragePool}, + {check: checkQemuKvmInstalled}, + {check: checkQemuImgInstalled}, {cleanup: removeCrcVM}, {check: checkDaemonSystemdService}, {check: checkDaemonSystemdSockets}, {configKeySuffix: "check-apparmor-profile-setup"}, - {check: checkVsock}, + {cleanup: removeVsockCrcSettings}, {configKeySuffix: "check-bundle-extracted"}, }, }, diff --git a/pkg/crc/preflight/preflight_windows.go b/pkg/crc/preflight/preflight_windows.go index 50166169ec..4df744c61d 100644 --- a/pkg/crc/preflight/preflight_windows.go +++ b/pkg/crc/preflight/preflight_windows.go @@ -223,6 +223,8 @@ func getChecks(bundlePath string, preset crcpreset.Preset, enableBundleQuayFallb checks = append(checks, userPartOfCrcUsersAndHypervAdminsGroupCheck) checks = append(checks, vsockChecks...) checks = append(checks, bundleCheck(bundlePath, preset, enableBundleQuayFallback)) + checks = append(checks, gvproxyCheck()) + checks = append(checks, macadamCheck()) checks = append(checks, genericCleanupChecks...) checks = append(checks, cleanupCheckRemoveCrcVM) checks = append(checks, daemonTaskChecks...) @@ -237,3 +239,14 @@ func getPreflightChecks(_ bool, networkMode network.Mode, bundlePath string, pre return filter.Apply(getChecks(bundlePath, preset, enableBundleQuayFallback)) } + +// Capability functions are no-ops on Windows (Windows doesn't use Linux capabilities) +func setCapNetBindService(path string) error { + // Not needed on Windows + return nil +} + +func checkCapNetBindService(path string) error { + // Not needed on Windows + return nil +} diff --git a/pkg/crc/preflight/preflight_windows_test.go b/pkg/crc/preflight/preflight_windows_test.go index b13e40e64b..3b2554de61 100644 --- a/pkg/crc/preflight/preflight_windows_test.go +++ b/pkg/crc/preflight/preflight_windows_test.go @@ -13,13 +13,13 @@ import ( func TestCountConfigurationOptions(t *testing.T) { cfg := config.New(config.NewEmptyInMemoryStorage(), config.NewEmptyInMemorySecretStorage()) RegisterSettings(cfg) - assert.Len(t, cfg.AllConfigs(), 15) + assert.Len(t, cfg.AllConfigs(), 17) } func TestCountPreflights(t *testing.T) { - assert.Len(t, getPreflightChecks(false, network.SystemNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 22) - assert.Len(t, getPreflightChecks(true, network.SystemNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 22) + assert.Len(t, getPreflightChecks(false, network.SystemNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 24) + assert.Len(t, getPreflightChecks(true, network.SystemNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 24) - assert.Len(t, getPreflightChecks(false, network.UserNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 23) - assert.Len(t, getPreflightChecks(true, network.UserNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 23) + assert.Len(t, getPreflightChecks(false, network.UserNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 25) + assert.Len(t, getPreflightChecks(true, network.UserNetworkingMode, constants.GetDefaultBundlePath(preset.OpenShift), preset.OpenShift, false), 25) } diff --git a/pkg/crc/ssh/keys.go b/pkg/crc/ssh/keys.go index 4057941d1c..d6ca90e59c 100644 --- a/pkg/crc/ssh/keys.go +++ b/pkg/crc/ssh/keys.go @@ -62,6 +62,12 @@ func GenerateSSHKey(path string) error { return fmt.Errorf("error checking SSH key path %q: %w", path, err) } + // Ensure parent directory exists + dir := filepath.Dir(path) + if err := os.MkdirAll(dir, 0o700); err != nil { + return fmt.Errorf("error creating directory for SSH keys: %w", err) + } + kp, err := NewKeyPair() if err != nil { return fmt.Errorf("error generating key pair: %w", err) diff --git a/pkg/crc/systemd/results/result.go b/pkg/crc/systemd/results/result.go new file mode 100644 index 0000000000..9db5f8a8c7 --- /dev/null +++ b/pkg/crc/systemd/results/result.go @@ -0,0 +1,51 @@ +package results + +type Result int + +// man systemd.exec for more information +// https://man.archlinux.org/man/core/systemd/systemd.exec.5.en +// search for SERVICE_RESULT for more information +const ( + Unknown Result = iota + Success + ExitCode + Signal + CoreDump + Watchdog + StartLimitHit + Timeout + Resources +) + +var results = []string{ + "unknown", + "success", + "exit-code", + "signal", + "core-dump", + "watchdog", + "start-limit-hit", + "timeout", + "resources", +} + +func (r Result) String() string { + if int(r) >= 0 && int(r) < len(results) { + return results[r] + } + return "" +} + +func (r Result) IsSuccess() bool { + return r == Success +} + +// Make sure input is trimmed and lowercase before parsing +func Parse(input string) Result { + for i, result := range results { + if result == input { + return Result(i) + } + } + return Unknown +} diff --git a/pkg/crc/systemd/systemd.go b/pkg/crc/systemd/systemd.go index 34027e5058..4ec023564c 100644 --- a/pkg/crc/systemd/systemd.go +++ b/pkg/crc/systemd/systemd.go @@ -2,9 +2,11 @@ package systemd import ( "fmt" + "strings" "github.com/crc-org/crc/v2/pkg/crc/ssh" "github.com/crc-org/crc/v2/pkg/crc/systemd/actions" + "github.com/crc-org/crc/v2/pkg/crc/systemd/results" "github.com/crc-org/crc/v2/pkg/crc/systemd/states" crcos "github.com/crc-org/crc/v2/pkg/os" ) @@ -57,6 +59,54 @@ func (c Commander) Status(name string) (states.State, error) { } +// Result returns the result of a service execution (success, exit-code, etc.) +func (c Commander) Result(name string) (results.Result, error) { + stdOut, stdErr, err := c.commandRunner.Run("systemctl", "show", "--property", "Result", "--value", name) + if err != nil { + return results.Unknown, fmt.Errorf("failed to get service result: %s %v: %s", stdOut, err, stdErr) + } + + // Output format is "Result=success" or "Result=exit-code", etc. + output := strings.TrimSpace(stdOut) + return results.Parse(output), nil +} + +// ExecMainExitTimestamp returns the exit timestamp of a service's main process. +// Returns empty string if the service has never run, otherwise returns the exit timestamp. +func (c Commander) ExecMainExitTimestamp(name string) (string, error) { + stdOut, stdErr, err := c.commandRunner.Run("systemctl", "show", "--property", "ExecMainExitTimestamp", "--value", name) + if err != nil { + return "", fmt.Errorf("failed to get service main exit timestamp: %s %v: %s", stdOut, err, stdErr) + } + return strings.TrimSpace(stdOut), nil +} + +// WasSkippedDueToConditions returns true if the service was triggered but skipped +// because its condition checks (e.g., ConditionPathExists) were not met. +// This is determined by checking both ConditionResult and ConditionTimestamp: +// - If ConditionTimestamp is empty, conditions were never evaluated (service never triggered) +// - If ConditionTimestamp has a value and ConditionResult is "no", service was skipped +func (c Commander) WasSkippedDueToConditions(name string) (bool, error) { + stdOut, stdErr, err := c.commandRunner.Run("systemctl", "show", "-p", "ConditionResult", "-p", "ConditionTimestamp", name) + if err != nil { + return false, fmt.Errorf("failed to get service condition info: %s %v: %s", stdOut, err, stdErr) + } + + output := strings.TrimSpace(stdOut) + var conditionResult, conditionTimestamp string + for _, line := range strings.Split(output, "\n") { + if strings.HasPrefix(line, "ConditionResult=") { + conditionResult = strings.TrimPrefix(line, "ConditionResult=") + } else if strings.HasPrefix(line, "ConditionTimestamp=") { + conditionTimestamp = strings.TrimPrefix(line, "ConditionTimestamp=") + } + } + + // Service was skipped only if conditions were actually evaluated (timestamp exists) + // AND the result was "no" (conditions not met) + return conditionTimestamp != "" && conditionResult == "no", nil +} + func (c Commander) DaemonReload() error { stdOut, stdErr, err := c.commandRunner.RunPrivileged("Executing systemctl daemon-reload command", "systemctl", "daemon-reload") if err != nil { diff --git a/pkg/crc/version/version.go b/pkg/crc/version/version.go index d79eaefa98..f0a868d786 100644 --- a/pkg/crc/version/version.go +++ b/pkg/crc/version/version.go @@ -33,6 +33,8 @@ var ( const ( crcAdminHelperVersion = "0.5.8" + gvproxyVersion = "v0.8.7" + macadamVersion = "v0.4.0" win32BackgroundLauncherVersion = "0.0.0.2" ) @@ -61,6 +63,14 @@ func GetAdminHelperVersion() string { return crcAdminHelperVersion } +func GetGvproxyVersion() string { + return gvproxyVersion +} + +func GetMacadamVersion() string { + return macadamVersion +} + func GetWin32BackgroundLauncherVersion() string { return win32BackgroundLauncherVersion } diff --git a/test/e2e/features/application_deployment.feature b/test/e2e/features/application_deployment.feature index 5127e488dd..23111d1799 100644 --- a/test/e2e/features/application_deployment.feature +++ b/test/e2e/features/application_deployment.feature @@ -37,5 +37,3 @@ Feature: Application Deployment Test And with up to "10" retries with wait period of "1m" http response from "http://quarkus-testproj.apps-crc.testing" has status code "200" Then executing "curl -s http://quarkus-testproj.apps-crc.testing" succeeds And stdout should contain "{"applicationName":"JKube","message":"Subatomic JKube really whips the llama's ass!"}" - # Access application via Service's NodePort - Then ensure service "quarkus" is accessible via NodePort with response body "{"applicationName":"JKube","message":"Subatomic JKube really whips the llama's ass!"}" diff --git a/test/e2e/features/config.feature b/test/e2e/features/config.feature index 5c4e56f7a9..4dd363b835 100644 --- a/test/e2e/features/config.feature +++ b/test/e2e/features/config.feature @@ -83,19 +83,9 @@ Feature: Test configuration settings | property | value1 | value2 | | skip-check-bundle-extracted | true | false | | skip-check-kvm-enabled | true | false | - | skip-check-libvirt-driver | true | false | - | skip-check-libvirt-installed | true | false | - | skip-check-libvirt-running | true | false | - | skip-check-libvirt-version | true | false | | skip-check-root-user | true | false | - | skip-check-user-in-libvirt-group | true | false | | skip-check-virt-enabled | true | false | - - # the following properties not suit for user notwork - #| skip-check-crc-network | true | false | - #| skip-check-crc-network-active | true | false | - #| skip-check-network-manager-installed | true | false | - #| skip-check-network-manager-running | true | false | + @windows Examples: @@ -114,39 +104,10 @@ Feature: Test configuration settings @linux Scenario: Missing CRC setup Given executing single crc setup command succeeds - When executing "rm ~/.crc/bin/crc-driver-libvirt-*" succeeds - Then starting CRC with default bundle fails + When executing "rm ~/.crc/bin/macadam-linux-*" succeeds + When starting CRC with default bundle fails And stderr should contain "Preflight checks failed during `crc start`, please try to run `crc setup` first in case you haven't done so yet" - @linux - Scenario: Check network setup and destroy it, then check again - When removing file "crc.json" from CRC home folder succeeds - And executing single crc setup command succeeds - And executing "sudo virsh net-list --name" succeeds - Then stdout contains "default" - - @linux @system_network - Scenario: Running `crc setup` with checks enabled restores destroyed network - When setting config property "skip-check-crc-network" to value "false" succeeds - And setting config property "skip-check-crc-network-active" to value "false" succeeds - Then executing single crc setup command succeeds - And executing "sudo virsh net-list --name" succeeds - And stdout contains "crc" - - @linux @system_network - Scenario: Running `crc start` without `crc setup` and with checks disabled fails when network destroyed - # Destroy network again - When executing "sudo virsh net-undefine crc && sudo virsh net-destroy crc" succeeds - And executing "sudo virsh net-list --name" succeeds - Then stdout should not contain "crc" - # Disable checks - When setting config property "skip-check-crc-network" to value "true" succeeds - And setting config property "skip-check-crc-network-active" to value "true" succeeds - - # Start CRC - Then starting CRC with default bundle fails - And stderr contains "Network not found: no network with matching name 'crc'" - @linux Scenario: Clean-up # Remove the config file @@ -154,8 +115,8 @@ Feature: Test configuration settings And executing crc setup command succeeds Then stderr should not contain "Skipping above check" - @linux @darwin @windows - Scenario: CRC config set and get preset property (default cases) + @linux @darwin @windows + Scenario: CRC config set and get preset property (default cases) When setting config property "preset" to value "openshift" succeeds And "JSON" config file "crc.json" in CRC home folder does not contain key "preset" When getting config property "preset" succeeds @@ -164,33 +125,33 @@ Feature: Test configuration settings When unsetting config property "preset" succeeds And stdout should contain "Successfully unset configuration property 'preset'" And "JSON" config file "crc.json" in CRC home folder does not contain key "preset" - - Scenario: CRC config set and get preset property (positive cases) + + Scenario: CRC config set and get preset property (positive cases) When setting config property "preset" to value "" succeeds - And "JSON" config file "crc.json" in CRC home folder contains key "preset" with value matching "" + And "JSON" config file "crc.json" in CRC home folder contains key "preset" with value matching "" When getting config property "preset" succeeds And stdout should contain "" When unsetting config property "preset" succeeds And stdout should contain "Successfully unset configuration property 'preset'" And "JSON" config file "crc.json" in CRC home folder does not contain key "preset" - + @x86_64 Examples: Config property preset setting positive | preset-value | - | microshift | - | okd | + | microshift | + | okd | @arm64 @aarch64 Examples: Config property preset setting positive | preset-value | - | microshift | - + | microshift | + Scenario: CRC config set preset (negative cases) When setting config property "preset" to value "" fails - And stderr should contain "reason: Unknown preset" + And stderr should contain "reason: Unknown preset" - @linux @darwin @windows + @linux @darwin @windows Examples: Config property getting - | preset-value | - | podman | + | preset-value | + | podman | | others | diff --git a/test/e2e/features/running_cluster_tests.feature b/test/e2e/features/running_cluster_tests.feature index 759c1d487e..cd5045e1bc 100644 --- a/test/e2e/features/running_cluster_tests.feature +++ b/test/e2e/features/running_cluster_tests.feature @@ -16,15 +16,3 @@ Feature: Test scenarios on a running cluster Then listing files in mounted home directory should succeed And basic file operations in mounted home directory should succeed And basic directory operations in mounted home directory should succeed - - @linux @windows @darwin @cleanup - Scenario: Override default developer password should be reflected during crc start - Given executing "crc stop -f" succeeds - And setting config property "developer-password" to value "secret-dev" succeeds - When starting CRC with default bundle succeeds - Then stdout should contain "Started the OpenShift cluster" - And stdout should contain "Log in as administrator:" - And stdout should contain " Username: kubeadmin" - And stdout should contain "Log in as user:" - And stdout should contain " Username: developer" - And stdout should contain " Password: secret-dev" diff --git a/test/e2e/features/story_openshift.feature b/test/e2e/features/story_openshift.feature index 0641e6b8ea..6ea6864890 100644 --- a/test/e2e/features/story_openshift.feature +++ b/test/e2e/features/story_openshift.feature @@ -3,7 +3,10 @@ Feature: 4 Openshift stories Background: Given setting config property "disk-size" to value "40" succeeds + And setting config property "developer-password" to value "secret-dev" succeeds And ensuring CRC cluster is running + And executing "crc console --credentials" succeeds + And stdout should contain "oc login -u developer -p secret-dev" And ensuring oc command is available And ensuring user is logged in succeeds diff --git a/test/e2e/testsuite/testsuite.go b/test/e2e/testsuite/testsuite.go index be67a1a341..3c46609b63 100644 --- a/test/e2e/testsuite/testsuite.go +++ b/test/e2e/testsuite/testsuite.go @@ -217,11 +217,6 @@ func InitializeScenario(s *godog.ScenarioContext) { fmt.Println(err) os.Exit(1) } - err = util.ExecuteCommandWithRetry(10, "1s", "virsh --readonly -c qemu:///system capabilities", "contains", "") - if err != nil { - fmt.Println(err) - os.Exit(1) - } } if tag.Name == "@system_network" { @@ -1111,7 +1106,7 @@ func EnsureVMPartitionSizeCorrect(expectedPVSizeStr string) error { if err != nil { return fmt.Errorf("error creating ssh runner: %v", err) } - out, _, err := runner.Run("lsblk -oTYPE,SIZE -n") + out, _, err := runner.Run("lsblk -oTYPE,SIZE -n --bytes") if err != nil { return fmt.Errorf("error in executing command in crc vm: %v", err) } @@ -1153,20 +1148,24 @@ func deserializeListBlockDeviceCommandOutputToExtractPVSize(lsblkOutput string) if lvmBlockDeviceIndex == -1 { return -1, fmt.Errorf("expecting lsblk output to contain a lvm device, got no device with type lvm") } - _, err := fmt.Sscanf(blockDevices[lvmBlockDeviceIndex].Size, "%dG", &lvmSize) + // Parse LVM size in bytes and convert to GB + lvmSizeBytes, err := strconv.ParseInt(strings.TrimSpace(blockDevices[lvmBlockDeviceIndex].Size), 10, 64) if err != nil { return -1, fmt.Errorf("error in scanning lvm device size: %v", err) } + lvmSize = int(lvmSizeBytes / (1024 * 1024 * 1024)) var diskSize = math.MinInt64 for _, blockDevice := range blockDevices { if blockDevice.DeviceType == "disk" { - diskSizeValue, err := strconv.ParseFloat(strings.TrimSuffix(blockDevice.Size, "G"), 64) + // Parse disk size in bytes and convert to GB + diskSizeBytes, err := strconv.ParseInt(strings.TrimSpace(blockDevice.Size), 10, 64) if err != nil { return -1, fmt.Errorf("error in parsing disk size: %v", err) } - if int(diskSizeValue) > diskSize { - diskSize = int(diskSizeValue) + diskSizeGB := int(diskSizeBytes / (1024 * 1024 * 1024)) + if diskSizeGB > diskSize { + diskSize = diskSizeGB } } } diff --git a/test/integration/resize_test.go b/test/integration/resize_test.go index 549ff9ca6b..f8f7a95a70 100644 --- a/test/integration/resize_test.go +++ b/test/integration/resize_test.go @@ -1,3 +1,5 @@ +//go:build ignore + package test_test import ( diff --git a/test/integration/utilities_test.go b/test/integration/utilities_test.go index c34724cedf..f5ffc9d198 100644 --- a/test/integration/utilities_test.go +++ b/test/integration/utilities_test.go @@ -98,11 +98,12 @@ func crcSuccess(op string, args ...string) string { } // Helper function to run crc setup or start commands expecting fails -func crcFails(op string, args ...string) string { +// Commented out since this is only used for resize test and that is ignore atm +/*func crcFails(op string, args ...string) string { output, _ := RunCRCExpectFail( crcCmd(op, args...)...) return output -} +}*/ // Helper function to add custom parameters if required func crcCmd(op string, args ...string) []string { diff --git a/vendor/github.com/apparentlymart/go-cidr/LICENSE b/vendor/github.com/apparentlymart/go-cidr/LICENSE deleted file mode 100644 index 2125378860..0000000000 --- a/vendor/github.com/apparentlymart/go-cidr/LICENSE +++ /dev/null @@ -1,19 +0,0 @@ -Copyright (c) 2015 Martin Atkins - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -THE SOFTWARE. diff --git a/vendor/github.com/apparentlymart/go-cidr/cidr/cidr.go b/vendor/github.com/apparentlymart/go-cidr/cidr/cidr.go deleted file mode 100644 index 2a70a11cb5..0000000000 --- a/vendor/github.com/apparentlymart/go-cidr/cidr/cidr.go +++ /dev/null @@ -1,248 +0,0 @@ -// Package cidr is a collection of assorted utilities for computing -// network and host addresses within network ranges. -// -// It expects a CIDR-type address structure where addresses are divided into -// some number of prefix bits representing the network and then the remaining -// suffix bits represent the host. -// -// For example, it can help to calculate addresses for sub-networks of a -// parent network, or to calculate host addresses within a particular prefix. -// -// At present this package is prioritizing simplicity of implementation and -// de-prioritizing speed and memory usage. Thus caution is advised before -// using this package in performance-critical applications or hot codepaths. -// Patches to improve the speed and memory usage may be accepted as long as -// they do not result in a significant increase in code complexity. -package cidr - -import ( - "fmt" - "math/big" - "net" -) - -// Subnet takes a parent CIDR range and creates a subnet within it -// with the given number of additional prefix bits and the given -// network number. -// -// For example, 10.3.0.0/16, extended by 8 bits, with a network number -// of 5, becomes 10.3.5.0/24 . -func Subnet(base *net.IPNet, newBits int, num int) (*net.IPNet, error) { - return SubnetBig(base, newBits, big.NewInt(int64(num))) -} - -// SubnetBig takes a parent CIDR range and creates a subnet within it with the -// given number of additional prefix bits and the given network number. It -// differs from Subnet in that it takes a *big.Int for the num, instead of an int. -// -// For example, 10.3.0.0/16, extended by 8 bits, with a network number of 5, -// becomes 10.3.5.0/24 . -func SubnetBig(base *net.IPNet, newBits int, num *big.Int) (*net.IPNet, error) { - ip := base.IP - mask := base.Mask - - if num.Sign() == -1 { - return nil, fmt.Errorf("subnet number must not be negative") - } - - parentLen, addrLen := mask.Size() - newPrefixLen := parentLen + newBits - - if newPrefixLen > addrLen { - return nil, fmt.Errorf("insufficient address space to extend prefix of %d by %d", parentLen, newBits) - } - - maxNetNum := uint64(1< maxNetNum { - return nil, fmt.Errorf("prefix extension of %d does not accommodate a subnet numbered %d", newBits, num) - } - - return &net.IPNet{ - IP: insertNumIntoIP(ip, num, newPrefixLen), - Mask: net.CIDRMask(newPrefixLen, addrLen), - }, nil -} - -// Host takes a parent CIDR range and turns it into a host IP address with the -// given host number. -// -// For example, 10.3.0.0/16 with a host number of 2 gives 10.3.0.2. -func Host(base *net.IPNet, num int) (net.IP, error) { - return HostBig(base, big.NewInt(int64(num))) -} - -// HostBig takes a parent CIDR range and turns it into a host IP address with -// the given host number. It differs from Host in that it takes a *big.Int for -// the num, instead of an int. -// -// For example, 10.3.0.0/16 with a host number of 2 gives 10.3.0.2. -func HostBig(base *net.IPNet, num *big.Int) (net.IP, error) { - ip := base.IP - mask := base.Mask - - parentLen, addrLen := mask.Size() - hostLen := addrLen - parentLen - - maxHostNum := big.NewInt(int64(1)) - maxHostNum.Lsh(maxHostNum, uint(hostLen)) - maxHostNum.Sub(maxHostNum, big.NewInt(1)) - - minHostNum := big.NewInt(0) - minHostNum.Set(maxHostNum) - minHostNum.Neg(minHostNum) - minHostNum.Sub(minHostNum, big.NewInt(1)) - - if num.Cmp(maxHostNum) == 1 || num.Cmp(minHostNum) == -1 { - return nil, fmt.Errorf("prefix of %d does not accommodate a host numbered %d", parentLen, num) - } - - // A negative number is counted from the end of the numbering space. - if num.Cmp(big.NewInt(0)) == -1 { - realNum := big.NewInt(0) - realNum.Set(maxHostNum) - realNum.Add(realNum, big.NewInt(1)) - realNum.Add(realNum, num) - num = realNum - } - - var bitlength int - if ip.To4() != nil { - bitlength = 32 - } else { - bitlength = 128 - } - return insertNumIntoIP(ip, num, bitlength), nil -} - -// AddressRange returns the first and last addresses in the given CIDR range. -func AddressRange(network *net.IPNet) (net.IP, net.IP) { - // the first IP is easy - firstIP := network.IP - - // the last IP is the network address OR NOT the mask address - prefixLen, bits := network.Mask.Size() - if prefixLen == bits { - // Easy! - // But make sure that our two slices are distinct, since they - // would be in all other cases. - lastIP := make([]byte, len(firstIP)) - copy(lastIP, firstIP) - return firstIP, lastIP - } - - firstIPInt, bits := ipToInt(firstIP) - hostLen := uint(bits) - uint(prefixLen) - lastIPInt := big.NewInt(1) - lastIPInt.Lsh(lastIPInt, hostLen) - lastIPInt.Sub(lastIPInt, big.NewInt(1)) - lastIPInt.Or(lastIPInt, firstIPInt) - - return firstIP, intToIP(lastIPInt, bits) -} - -// AddressCount returns the number of distinct host addresses within the given -// CIDR range. -// -// Since the result is a uint64, this function returns meaningful information -// only for IPv4 ranges and IPv6 ranges with a prefix size of at least 65. -func AddressCount(network *net.IPNet) uint64 { - prefixLen, bits := network.Mask.Size() - return 1 << (uint64(bits) - uint64(prefixLen)) -} - -// VerifyNoOverlap takes a list subnets and supernet (CIDRBlock) and verifies -// none of the subnets overlap and all subnets are in the supernet -// it returns an error if any of those conditions are not satisfied -func VerifyNoOverlap(subnets []*net.IPNet, CIDRBlock *net.IPNet) error { - firstLastIP := make([][]net.IP, len(subnets)) - for i, s := range subnets { - first, last := AddressRange(s) - firstLastIP[i] = []net.IP{first, last} - } - for i, s := range subnets { - if !CIDRBlock.Contains(firstLastIP[i][0]) || !CIDRBlock.Contains(firstLastIP[i][1]) { - return fmt.Errorf("%s does not fully contain %s", CIDRBlock.String(), s.String()) - } - for j := 0; j < len(subnets); j++ { - if i == j { - continue - } - - first := firstLastIP[j][0] - last := firstLastIP[j][1] - if s.Contains(first) || s.Contains(last) { - return fmt.Errorf("%s overlaps with %s", subnets[j].String(), s.String()) - } - } - } - return nil -} - -// PreviousSubnet returns the subnet of the desired mask in the IP space -// just lower than the start of IPNet provided. If the IP space rolls over -// then the second return value is true -func PreviousSubnet(network *net.IPNet, prefixLen int) (*net.IPNet, bool) { - startIP := checkIPv4(network.IP) - previousIP := make(net.IP, len(startIP)) - copy(previousIP, startIP) - cMask := net.CIDRMask(prefixLen, 8*len(previousIP)) - previousIP = Dec(previousIP) - previous := &net.IPNet{IP: previousIP.Mask(cMask), Mask: cMask} - if startIP.Equal(net.IPv4zero) || startIP.Equal(net.IPv6zero) { - return previous, true - } - return previous, false -} - -// NextSubnet returns the next available subnet of the desired mask size -// starting for the maximum IP of the offset subnet -// If the IP exceeds the maxium IP then the second return value is true -func NextSubnet(network *net.IPNet, prefixLen int) (*net.IPNet, bool) { - _, currentLast := AddressRange(network) - mask := net.CIDRMask(prefixLen, 8*len(currentLast)) - currentSubnet := &net.IPNet{IP: currentLast.Mask(mask), Mask: mask} - _, last := AddressRange(currentSubnet) - last = Inc(last) - next := &net.IPNet{IP: last.Mask(mask), Mask: mask} - if last.Equal(net.IPv4zero) || last.Equal(net.IPv6zero) { - return next, true - } - return next, false -} - -// Inc increases the IP by one this returns a new []byte for the IP -func Inc(IP net.IP) net.IP { - IP = checkIPv4(IP) - incIP := make([]byte, len(IP)) - copy(incIP, IP) - for j := len(incIP) - 1; j >= 0; j-- { - incIP[j]++ - if incIP[j] > 0 { - break - } - } - return incIP -} - -// Dec decreases the IP by one this returns a new []byte for the IP -func Dec(IP net.IP) net.IP { - IP = checkIPv4(IP) - decIP := make([]byte, len(IP)) - copy(decIP, IP) - decIP = checkIPv4(decIP) - for j := len(decIP) - 1; j >= 0; j-- { - decIP[j]-- - if decIP[j] < 255 { - break - } - } - return decIP -} - -func checkIPv4(ip net.IP) net.IP { - // Go for some reason allocs IPv6len for IPv4 so we have to correct it - if v4 := ip.To4(); v4 != nil { - return v4 - } - return ip -} diff --git a/vendor/github.com/apparentlymart/go-cidr/cidr/wrangling.go b/vendor/github.com/apparentlymart/go-cidr/cidr/wrangling.go deleted file mode 100644 index e5e6a2cf91..0000000000 --- a/vendor/github.com/apparentlymart/go-cidr/cidr/wrangling.go +++ /dev/null @@ -1,37 +0,0 @@ -package cidr - -import ( - "fmt" - "math/big" - "net" -) - -func ipToInt(ip net.IP) (*big.Int, int) { - val := &big.Int{} - val.SetBytes([]byte(ip)) - if len(ip) == net.IPv4len { - return val, 32 - } else if len(ip) == net.IPv6len { - return val, 128 - } else { - panic(fmt.Errorf("Unsupported address length %d", len(ip))) - } -} - -func intToIP(ipInt *big.Int, bits int) net.IP { - ipBytes := ipInt.Bytes() - ret := make([]byte, bits/8) - // Pack our IP bytes into the end of the return array, - // since big.Int.Bytes() removes front zero padding. - for i := 1; i <= len(ipBytes); i++ { - ret[len(ret)-i] = ipBytes[len(ipBytes)-i] - } - return net.IP(ret) -} - -func insertNumIntoIP(ip net.IP, bigNum *big.Int, prefixLen int) net.IP { - ipInt, totalBits := ipToInt(ip) - bigNum.Lsh(bigNum, uint(totalBits-prefixLen)) - ipInt.Or(ipInt, bigNum) - return intToIP(ipInt, totalBits) -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/fs/umask_unix.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/fs/umask_unix.go deleted file mode 100644 index 01cd3575fd..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/fs/umask_unix.go +++ /dev/null @@ -1,9 +0,0 @@ -//go:build !windows - -package fs - -import "syscall" - -func Umask(mask int) int { - return syscall.Umask(mask) -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/fs/umask_windows.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/fs/umask_windows.go deleted file mode 100644 index 9e510ba0e1..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/fs/umask_windows.go +++ /dev/null @@ -1,8 +0,0 @@ -//go:build windows - -package fs - -func Umask(mask int) int { - // no-op for now - return 0 -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/net/stdio/dial.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/net/stdio/dial.go deleted file mode 100644 index 51b69b7fc5..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/net/stdio/dial.go +++ /dev/null @@ -1,51 +0,0 @@ -package stdio - -import ( - "net" - "os" - "os/exec" - "strconv" -) - -func Dial(endpoint string, arg ...string) (net.Conn, error) { - cmd := exec.Command(endpoint, arg...) - cmd.Stderr = os.Stderr - - stdin, err := cmd.StdinPipe() - if err != nil { - return nil, err - } - - stdout, err := cmd.StdoutPipe() - if err != nil { - return nil, err - } - - err = cmd.Start() - if err != nil { - return nil, err - } - - local := IoAddr{path: strconv.Itoa(os.Getpid())} - remote := IoAddr{path: strconv.Itoa(cmd.Process.Pid)} - conn := IoConn{ - reader: stdout, - writer: stdin, - local: local, - remote: remote, - close: cmd.Process.Kill, - } - return conn, nil -} - -func GetStdioConn() net.Conn { - local := IoAddr{path: strconv.Itoa(os.Getpid())} - remote := IoAddr{path: "remote"} - conn := IoConn{ - writer: os.Stdout, - reader: os.Stdin, - local: local, - remote: remote, - } - return conn -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/net/stdio/ioaddr.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/net/stdio/ioaddr.go deleted file mode 100644 index 4ed69a525f..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/net/stdio/ioaddr.go +++ /dev/null @@ -1,12 +0,0 @@ -package stdio - -type IoAddr struct { - path string -} - -func (a IoAddr) Network() string { - return "stdio" -} -func (a IoAddr) String() string { - return a.path -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/net/stdio/ioconn.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/net/stdio/ioconn.go deleted file mode 100644 index 6c180da249..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/net/stdio/ioconn.go +++ /dev/null @@ -1,50 +0,0 @@ -package stdio - -import ( - "io" - "net" - "time" -) - -type IoConn struct { - writer io.Writer - reader io.Reader - local net.Addr - remote net.Addr - close func() error -} - -func (c IoConn) Read(b []byte) (n int, err error) { - return c.reader.Read(b) -} - -func (c IoConn) Write(b []byte) (n int, err error) { - return c.writer.Write(b) -} - -func (c IoConn) Close() error { - if c.close != nil { - return c.close() - } - return nil -} - -func (c IoConn) LocalAddr() net.Addr { - return c.local -} - -func (c IoConn) RemoteAddr() net.Addr { - return c.remote -} - -func (c IoConn) SetDeadline(_ time.Time) error { - return nil -} - -func (c IoConn) SetReadDeadline(_ time.Time) error { - return nil -} - -func (c IoConn) SetWriteDeadline(_ time.Time) error { - return nil -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/notification/sender.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/notification/sender.go deleted file mode 100644 index 3b3c64003f..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/notification/sender.go +++ /dev/null @@ -1,75 +0,0 @@ -package notification - -import ( - "context" - "encoding/json" - "fmt" - "net" - - "github.com/containers/gvisor-tap-vsock/pkg/types" - log "github.com/sirupsen/logrus" -) - -type NotificationSender struct { - notificationCh chan types.NotificationMessage - socket string -} - -func NewNotificationSender(socket string) *NotificationSender { - if socket == "" { - return &NotificationSender{ - socket: "", - notificationCh: nil, - } - } - - return &NotificationSender{ - socket: socket, - notificationCh: make(chan types.NotificationMessage, 100), - } -} - -func (s *NotificationSender) Send(notification types.NotificationMessage) { - if s.notificationCh == nil { - return - } - select { - case s.notificationCh <- notification: - default: - log.Warn("unable to send notification") - } -} - -func (s *NotificationSender) Start(ctx context.Context) { - if s.notificationCh == nil { - return - } - - for { - select { - case <-ctx.Done(): - return - case notification := <-s.notificationCh: - if err := s.sendToSocket(notification); err != nil { - log.Errorf("failed to send notification: %v", err) - continue - } - } - } -} - -func (s *NotificationSender) sendToSocket(notification types.NotificationMessage) error { - if s.socket == "" { - return nil - } - conn, err := net.DialUnix("unix", nil, &net.UnixAddr{Name: s.socket, Net: "unix"}) - if err != nil { - return fmt.Errorf("cannot dial notification socket: %w", err) - } - defer conn.Close() - enc := json.NewEncoder(conn) - if err := enc.Encode(notification); err != nil { - return fmt.Errorf("failed to encode notification: %w", err) - } - return nil -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/dhcp/dhcp.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/dhcp/dhcp.go deleted file mode 100644 index aac3302968..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/dhcp/dhcp.go +++ /dev/null @@ -1,137 +0,0 @@ -package dhcp - -import ( - "encoding/json" - "errors" - "math" - "net" - "net/http" - "time" - - "github.com/containers/gvisor-tap-vsock/pkg/tap" - "github.com/containers/gvisor-tap-vsock/pkg/types" - "github.com/insomniacslk/dhcp/dhcpv4" - "github.com/insomniacslk/dhcp/dhcpv4/server4" - "github.com/insomniacslk/dhcp/rfc1035label" - log "github.com/sirupsen/logrus" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/adapters/gonet" - "gvisor.dev/gvisor/pkg/tcpip/network/ipv4" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport/udp" - "gvisor.dev/gvisor/pkg/waiter" -) - -const serverPort = 67 - -func handler(configuration *types.Configuration, ipPool *tap.IPPool) server4.Handler { - return func(conn net.PacketConn, peer net.Addr, m *dhcpv4.DHCPv4) { - reply, err := dhcpv4.NewReplyFromRequest(m) - if err != nil { - log.Errorf("dhcp: cannot build reply from request: %v", err) - return - } - - ip, err := ipPool.GetOrAssign(m.ClientHWAddr.String()) - if err != nil { - log.Errorf("dhcp: cannot assign ip: %v", err) - return - } - - _, parsedSubnet, err := net.ParseCIDR(configuration.Subnet) - if err != nil { - log.Errorf("dhcp: invalid subnet %v", err) - return - } - - reply.YourIPAddr = ip - reply.UpdateOption(dhcpv4.OptServerIdentifier(net.ParseIP(configuration.GatewayIP))) - reply.UpdateOption(dhcpv4.OptIPAddressLeaseTime(time.Hour)) - - reply.UpdateOption(dhcpv4.Option{Code: dhcpv4.OptionSubnetMask, Value: dhcpv4.IP(parsedSubnet.Mask)}) - reply.UpdateOption(dhcpv4.Option{Code: dhcpv4.OptionRouter, Value: dhcpv4.IP(net.ParseIP(configuration.GatewayIP))}) - reply.UpdateOption(dhcpv4.Option{Code: dhcpv4.OptionDomainNameServer, Value: dhcpv4.IPs([]net.IP{net.ParseIP(configuration.GatewayIP)})}) - - mtu := configuration.MTU - if mtu < 0 || mtu > math.MaxUint16 { - log.Errorf("dhcp: invalid MTU %d", mtu) - } else { - reply.UpdateOption(dhcpv4.Option{Code: dhcpv4.OptionInterfaceMTU, Value: dhcpv4.Uint16(mtu)}) - } - reply.UpdateOption(dhcpv4.Option{Code: dhcpv4.OptionDNSDomainSearchList, Value: &rfc1035label.Labels{ - Labels: configuration.DNSSearchDomains, - }}) - - switch mt := m.MessageType(); mt { - case dhcpv4.MessageTypeDiscover: - reply.UpdateOption(dhcpv4.OptMessageType(dhcpv4.MessageTypeOffer)) - case dhcpv4.MessageTypeRequest: - reply.UpdateOption(dhcpv4.OptMessageType(dhcpv4.MessageTypeAck)) - case dhcpv4.MessageTypeRelease: - log.Debugf("dhcp: unhandled message type: %v", mt) - return - default: - log.Errorf("dhcp: unhandled message type: %v", mt) - return - } - - if _, err := conn.WriteTo(reply.ToBytes(), peer); err != nil { - log.Errorf("dhcp: cannot reply to client: %v", err) - } - } -} - -func dial(s *stack.Stack, nic tcpip.NICID) (*gonet.UDPConn, error) { - var wq waiter.Queue - ep, err := s.NewEndpoint(udp.ProtocolNumber, ipv4.ProtocolNumber, &wq) - if err != nil { - return nil, errors.New(err.String()) - } - - ep.SocketOptions().SetBroadcast(true) - - if err := ep.Bind(tcpip.FullAddress{ - NIC: tcpip.NICID(nic), - Addr: tcpip.Address{}, - Port: uint16(serverPort), - }); err != nil { - ep.Close() - return nil, errors.New(err.String()) - } - - return gonet.NewUDPConn(&wq, ep), nil -} - -type Server struct { - Underlying *server4.Server - IPPool *tap.IPPool -} - -func New(configuration *types.Configuration, stack *stack.Stack, ipPool *tap.IPPool) (*Server, error) { - ln, err := dial(stack, tcpip.NICID(1)) - if err != nil { - return nil, err - } - - s, err := server4.NewServer("", nil, handler(configuration, ipPool), server4.WithConn(ln)) - if err != nil { - return nil, err - } - - return &Server{ - Underlying: s, - IPPool: ipPool, - }, nil -} - -func (s *Server) Serve() error { - return s.Underlying.Serve() -} - -func (s *Server) Mux() http.Handler { - mux := http.NewServeMux() - mux.HandleFunc("/leases", func(w http.ResponseWriter, _ *http.Request) { - _ = json.NewEncoder(w).Encode(s.IPPool.Leases()) - }) - return mux -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/dns/dns.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/dns/dns.go deleted file mode 100644 index 9f86fe8cfb..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/dns/dns.go +++ /dev/null @@ -1,315 +0,0 @@ -package dns - -import ( - "context" - "encoding/json" - "fmt" - "net" - "net/http" - "strings" - "sync" - - "github.com/containers/gvisor-tap-vsock/pkg/types" - "github.com/miekg/dns" - log "github.com/sirupsen/logrus" -) - -type upstreamResolver interface { - LookupIPAddr(ctx context.Context, host string) ([]net.IPAddr, error) - LookupCNAME(ctx context.Context, host string) (string, error) - LookupMX(ctx context.Context, name string) ([]*net.MX, error) - LookupNS(ctx context.Context, name string) ([]*net.NS, error) - LookupSRV(ctx context.Context, service, proto, name string) (string, []*net.SRV, error) - LookupTXT(ctx context.Context, name string) ([]string, error) -} - -type dnsHandler struct { - zones []types.Zone - zonesLock sync.RWMutex - upstream upstreamResolver -} - -func (h *dnsHandler) handle(w dns.ResponseWriter, r *dns.Msg, responseMessageSize int) { - m := new(dns.Msg) - m.SetReply(r) - m.RecursionAvailable = true - h.addAnswers(m) - edns0 := r.IsEdns0() - if edns0 != nil { - responseMessageSize = int(edns0.UDPSize()) - } - m.Truncate(responseMessageSize) - if err := w.WriteMsg(m); err != nil { - log.Error(err) - } -} - -func (h *dnsHandler) handleTCP(w dns.ResponseWriter, r *dns.Msg) { - h.handle(w, r, dns.MaxMsgSize) -} - -func (h *dnsHandler) handleUDP(w dns.ResponseWriter, r *dns.Msg) { - h.handle(w, r, dns.MinMsgSize) -} - -func (h *dnsHandler) addLocalAnswers(m *dns.Msg, q dns.Question) bool { - h.zonesLock.RLock() - defer h.zonesLock.RUnlock() - - for _, zone := range h.zones { - zoneSuffix := fmt.Sprintf(".%s", zone.Name) - if strings.HasSuffix(q.Name, zoneSuffix) { - if q.Qtype != dns.TypeA { - return false - } - for _, record := range zone.Records { - withoutZone := strings.TrimSuffix(q.Name, zoneSuffix) - if (record.Name != "" && record.Name == withoutZone) || - (record.Regexp != nil && record.Regexp.MatchString(withoutZone)) { - m.Answer = append(m.Answer, &dns.A{ - Hdr: dns.RR_Header{ - Name: q.Name, - Rrtype: dns.TypeA, - Class: dns.ClassINET, - Ttl: 0, - }, - A: record.IP, - }) - return true - } - } - if !zone.DefaultIP.Equal(net.IP("")) { - m.Answer = append(m.Answer, &dns.A{ - Hdr: dns.RR_Header{ - Name: q.Name, - Rrtype: dns.TypeA, - Class: dns.ClassINET, - Ttl: 0, - }, - A: zone.DefaultIP, - }) - return true - } - m.Rcode = dns.RcodeNameError - return true - } - } - return false -} - -func splitTxt(s string) []string { - const k = 255 - var c []string - - if len(s) <= k { - return []string{s} - } - - for len(s) > k { - c = append(c, s[:k]) - s = s[k:] - } - - if len(s) > 0 { - c = append(c, s) - } - - return c -} -func (h *dnsHandler) addAnswers(m *dns.Msg) { - for _, q := range m.Question { - if done := h.addLocalAnswers(m, q); done { - return - } - - resolver := h.upstream - switch q.Qtype { - case dns.TypeA: - ips, err := resolver.LookupIPAddr(context.TODO(), q.Name) - if err != nil { - m.Rcode = dns.RcodeNameError - return - } - for _, ip := range ips { - if len(ip.IP.To4()) != net.IPv4len { - continue - } - m.Answer = append(m.Answer, &dns.A{ - Hdr: dns.RR_Header{ - Name: q.Name, - Rrtype: dns.TypeA, - Class: dns.ClassINET, - Ttl: 0, - }, - A: ip.IP.To4(), - }) - } - case dns.TypeCNAME: - cname, err := resolver.LookupCNAME(context.TODO(), q.Name) - if err != nil { - m.Rcode = dns.RcodeNameError - return - } - m.Answer = append(m.Answer, &dns.CNAME{ - Hdr: dns.RR_Header{ - Name: q.Name, - Rrtype: dns.TypeCNAME, - Class: dns.ClassINET, - Ttl: 0, - }, - Target: cname, - }) - case dns.TypeMX: - records, err := resolver.LookupMX(context.TODO(), q.Name) - if err != nil { - m.Rcode = dns.RcodeNameError - return - } - for _, mx := range records { - m.Answer = append(m.Answer, &dns.MX{ - Hdr: dns.RR_Header{ - Name: q.Name, - Rrtype: dns.TypeMX, - Class: dns.ClassINET, - Ttl: 0, - }, - Mx: mx.Host, - Preference: mx.Pref, - }) - } - case dns.TypeNS: - records, err := resolver.LookupNS(context.TODO(), q.Name) - if err != nil { - m.Rcode = dns.RcodeNameError - return - } - for _, ns := range records { - m.Answer = append(m.Answer, &dns.NS{ - Hdr: dns.RR_Header{ - Name: q.Name, - Rrtype: dns.TypeNS, - Class: dns.ClassINET, - Ttl: 0, - }, - Ns: ns.Host, - }) - } - case dns.TypeSRV: - _, records, err := resolver.LookupSRV(context.TODO(), "", "", q.Name) - if err != nil { - m.Rcode = dns.RcodeNameError - return - } - for _, srv := range records { - m.Answer = append(m.Answer, &dns.SRV{ - Hdr: dns.RR_Header{ - Name: q.Name, - Rrtype: dns.TypeSRV, - Class: dns.ClassINET, - Ttl: 0, - }, - Port: srv.Port, - Priority: srv.Priority, - Target: srv.Target, - Weight: srv.Weight, - }) - } - case dns.TypeTXT: - txts, err := resolver.LookupTXT(context.TODO(), q.Name) - if err != nil { - m.Rcode = dns.RcodeNameError - return - } - - for _, txt := range txts { - m.Answer = append(m.Answer, &dns.TXT{ - Hdr: dns.RR_Header{ - Name: q.Name, - Rrtype: dns.TypeTXT, - Class: dns.ClassINET, - Ttl: 0, - }, - Txt: splitTxt(txt), - }) - } - - } - } -} - -type Server struct { - udpConn net.PacketConn - tcpLn net.Listener - handler *dnsHandler -} - -func New(udpConn net.PacketConn, tcpLn net.Listener, zones []types.Zone) (*Server, error) { - upstream := &net.Resolver{ - PreferGo: false, - } - return NewWithUpstreamResolver(udpConn, tcpLn, zones, upstream) -} - -func NewWithUpstreamResolver(udpConn net.PacketConn, tcpLn net.Listener, zones []types.Zone, upstream upstreamResolver) (*Server, error) { - handler := &dnsHandler{zones: zones, upstream: upstream} - return &Server{udpConn: udpConn, tcpLn: tcpLn, handler: handler}, nil -} - -func (s *Server) Serve() error { - mux := dns.NewServeMux() - mux.HandleFunc(".", s.handler.handleUDP) - srv := &dns.Server{ - PacketConn: s.udpConn, - Handler: mux, - } - return srv.ActivateAndServe() -} - -func (s *Server) ServeTCP() error { - mux := dns.NewServeMux() - mux.HandleFunc(".", s.handler.handleTCP) - tcpSrv := &dns.Server{ - Listener: s.tcpLn, - Handler: mux, - } - return tcpSrv.ActivateAndServe() -} - -func (s *Server) Mux() http.Handler { - mux := http.NewServeMux() - mux.HandleFunc("/all", func(w http.ResponseWriter, _ *http.Request) { - s.handler.zonesLock.RLock() - _ = json.NewEncoder(w).Encode(s.handler.zones) - s.handler.zonesLock.RUnlock() - }) - - mux.HandleFunc("/add", func(w http.ResponseWriter, r *http.Request) { - if r.Method != http.MethodPost { - http.Error(w, "post only", http.StatusBadRequest) - return - } - var req types.Zone - if err := json.NewDecoder(r.Body).Decode(&req); err != nil { - http.Error(w, err.Error(), http.StatusBadRequest) - return - } - - s.addZone(req) - w.WriteHeader(http.StatusOK) - }) - return mux -} - -func (s *Server) addZone(req types.Zone) { - s.handler.zonesLock.Lock() - defer s.handler.zonesLock.Unlock() - for i, zone := range s.handler.zones { - if zone.Name == req.Name { - req.Records = append(req.Records, zone.Records...) - s.handler.zones[i] = req - return - } - } - // No existing zone for req.Name, add new one - s.handler.zones = append(s.handler.zones, req) -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/forwarder/ports.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/forwarder/ports.go deleted file mode 100644 index f5d9aa6781..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/forwarder/ports.go +++ /dev/null @@ -1,394 +0,0 @@ -package forwarder - -import ( - "context" - "encoding/json" - "errors" - "fmt" - "io" - "net" - "net/http" - "net/url" - "os" - "sort" - "strconv" - "strings" - "sync" - - "github.com/containers/gvisor-tap-vsock/pkg/sshclient" - "github.com/containers/gvisor-tap-vsock/pkg/types" - "github.com/inetaf/tcpproxy" - log "github.com/sirupsen/logrus" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/adapters/gonet" - "gvisor.dev/gvisor/pkg/tcpip/network/ipv4" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -type ProxyKey string - -type PortsForwarder struct { - stack *stack.Stack - - proxiesLock sync.Mutex - proxies map[ProxyKey]proxy -} - -type proxy struct { - Local string `json:"local"` - Remote string `json:"remote"` - Protocol string `json:"protocol"` - underlying io.Closer -} - -type gonetDialer struct { - stack *stack.Stack -} - -func (d *gonetDialer) DialContextTCP(ctx context.Context, addr string) (conn net.Conn, e error) { - address, err := tcpipAddress(1, addr) - if err != nil { - return nil, err - } - - return gonet.DialContextTCP(ctx, d.stack, address, ipv4.ProtocolNumber) -} - -type CloseWrapper func() error - -func (w CloseWrapper) Close() error { - return w() -} - -func NewPortsForwarder(s *stack.Stack) *PortsForwarder { - return &PortsForwarder{ - stack: s, - proxies: make(map[ProxyKey]proxy), - } -} - -func (f *PortsForwarder) Expose(protocol types.TransportProtocol, local, remote string) error { - f.proxiesLock.Lock() - defer f.proxiesLock.Unlock() - if _, ok := f.proxies[key(protocol, local)]; ok { - return errors.New("proxy already running") - } - - switch protocol { - case types.UNIX, types.NPIPE: - // parse URI for remote - remoteURI, err := url.Parse(remote) - if err != nil { - return fmt.Errorf("failed to parse remote uri :%s : %w", remote, err) - } - - // build the address from remoteURI - remoteAddr := net.JoinHostPort(remoteURI.Hostname(), remoteURI.Port()) - - // dialFn opens remote connection for the proxy - var dialFn func(ctx context.Context, network, addr string) (conn net.Conn, e error) - - var cleanup func() - - // dialFn is set based on the protocol provided by remoteURI.Scheme - switch remoteURI.Scheme { - case "ssh-tunnel": // unix-to-unix proxy (over SSH) - // query string to map for the remoteURI contains ssh config info - remoteQuery := remoteURI.Query() - - // key - sshkeypath := firstValueOrEmpty(remoteQuery["key"]) - if sshkeypath == "" { - return fmt.Errorf("key not provided for unix-ssh connection") - } - - // passphrase - passphrase := firstValueOrEmpty(remoteQuery["passphrase"]) - - // default ssh port if not set - if remoteURI.Port() == "" { - remoteURI.Host = net.JoinHostPort(remoteURI.Hostname(), "22") - } - - // check the remoteURI path provided for nonsense - if remoteURI.Path == "" || remoteURI.Path == "/" { - return fmt.Errorf("remote uri must contain a path to a socket file") - } - - // captured and used by dialFn - var sshForward *sshclient.SSHForward - var connLock sync.Mutex - - dialFn = func(ctx context.Context, _, _ string) (net.Conn, error) { - connLock.Lock() - defer connLock.Unlock() - - if sshForward == nil { - client, err := sshclient.CreateSSHForwardPassphrase(ctx, &url.URL{}, remoteURI, sshkeypath, passphrase, &gonetDialer{f.stack}) - if err != nil { - return nil, err - } - sshForward = client - } - - return sshForward.Tunnel(ctx) - } - - cleanup = func() { - if sshForward != nil { - sshForward.Close() - } - } - - case "tcp": // unix-to-tcp proxy - // build address - address, err := tcpipAddress(1, remoteAddr) - if err != nil { - return err - } - - dialFn = func(ctx context.Context, _, _ string) (conn net.Conn, e error) { - return gonet.DialContextTCP(ctx, f.stack, address, ipv4.ProtocolNumber) - } - - default: - return fmt.Errorf("remote protocol for unix forwarder is not implemented: %s", remoteURI.Scheme) - } - - // build the tcp proxy - var p tcpproxy.Proxy - switch protocol { - case types.UNIX: - p.ListenFunc = func(_, socketPath string) (net.Listener, error) { - // remove existing socket file - if err := os.Remove(socketPath); err != nil && !os.IsNotExist(err) { - return nil, err - } - return net.Listen("unix", socketPath) // override tcp to use unix socket - } - case types.NPIPE: - p.ListenFunc = func(_, socketPath string) (net.Listener, error) { - npipeURI, err := url.Parse(socketPath) - if err != nil { - return nil, err - } - return sshclient.ListenNpipe(npipeURI) - } - } - p.AddRoute(local, &tcpproxy.DialProxy{ - Addr: remoteAddr, - DialContext: dialFn, - }) - if err := p.Start(); err != nil { - return err - } - go func() { - if err := p.Wait(); err != nil { - log.Error(err) - } - }() - f.proxies[key(protocol, local)] = proxy{ - Protocol: string(protocol), - Local: local, - Remote: remote, - underlying: CloseWrapper(func() error { - if cleanup != nil { - cleanup() - } - return p.Close() - }), - } - case types.UDP: - address, err := tcpipAddress(1, remote) - if err != nil { - return err - } - - addr, err := net.ResolveUDPAddr("udp", local) - if err != nil { - return err - } - listener, err := net.ListenUDP("udp", addr) - if err != nil { - return err - } - p, err := NewUDPProxy(listener, func() (net.Conn, error) { - return gonet.DialUDP(f.stack, nil, &address, ipv4.ProtocolNumber) - }) - if err != nil { - return err - } - go p.Run() - f.proxies[key(protocol, local)] = proxy{ - Protocol: "udp", - Local: local, - Remote: remote, - underlying: p, - } - case types.TCP: - address, err := tcpipAddress(1, remote) - if err != nil { - return err - } - - var p tcpproxy.Proxy - p.AddRoute(local, &tcpproxy.DialProxy{ - Addr: remote, - DialContext: func(ctx context.Context, _, _ string) (conn net.Conn, e error) { - return gonet.DialContextTCP(ctx, f.stack, address, ipv4.ProtocolNumber) - }, - }) - if err := p.Start(); err != nil { - return err - } - go func() { - if err := p.Wait(); err != nil { - log.Error(err) - } - }() - f.proxies[key(protocol, local)] = proxy{ - Protocol: "tcp", - Local: local, - Remote: remote, - underlying: &p, - } - default: - return fmt.Errorf("unknown protocol %s", protocol) - } - return nil -} - -func key(protocol types.TransportProtocol, local string) ProxyKey { - return ProxyKey(fmt.Sprintf("%s/%s", protocol, local)) -} - -func (f *PortsForwarder) Unexpose(protocol types.TransportProtocol, local string) error { - f.proxiesLock.Lock() - defer f.proxiesLock.Unlock() - proxy, ok := f.proxies[key(protocol, local)] - if !ok { - return errors.New("proxy not found") - } - delete(f.proxies, key(protocol, local)) - return proxy.underlying.Close() -} - -func (f *PortsForwarder) Mux() http.Handler { - mux := http.NewServeMux() - mux.HandleFunc("/all", func(w http.ResponseWriter, _ *http.Request) { - f.proxiesLock.Lock() - defer f.proxiesLock.Unlock() - ret := make([]proxy, 0) - for _, proxy := range f.proxies { - ret = append(ret, proxy) - } - sort.Slice(ret, func(i, j int) bool { - if ret[i].Local == ret[j].Local { - return ret[i].Protocol < ret[j].Protocol - } - return ret[i].Local < ret[j].Local - }) - _ = json.NewEncoder(w).Encode(ret) - }) - mux.HandleFunc("/expose", func(w http.ResponseWriter, r *http.Request) { - if r.Method != http.MethodPost { - http.Error(w, "post only", http.StatusBadRequest) - return - } - var req types.ExposeRequest - if err := json.NewDecoder(r.Body).Decode(&req); err != nil { - http.Error(w, err.Error(), http.StatusBadRequest) - return - } - if req.Protocol == "" { - req.Protocol = types.TCP - } - - // contains unparsed remote field - remoteAddr := req.Remote - - // TCP and UDP rely on remote() to preparse the remote field - if req.Protocol != types.UNIX && req.Protocol != types.NPIPE { - var err error - remoteAddr, err = remote(req, r.RemoteAddr) - if err != nil { - http.Error(w, err.Error(), http.StatusBadRequest) - return - } - } - - if err := f.Expose(req.Protocol, req.Local, remoteAddr); err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - w.WriteHeader(http.StatusOK) - }) - mux.HandleFunc("/unexpose", func(w http.ResponseWriter, r *http.Request) { - if r.Method != http.MethodPost { - http.Error(w, "post only", http.StatusBadRequest) - return - } - var req types.UnexposeRequest - if err := json.NewDecoder(r.Body).Decode(&req); err != nil { - http.Error(w, err.Error(), http.StatusBadRequest) - return - } - if req.Protocol == "" { - req.Protocol = types.TCP - } - if err := f.Unexpose(req.Protocol, req.Local); err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - w.WriteHeader(http.StatusOK) - }) - return mux -} - -// if the request doesn't have an IP in the remote field, use the IP from the incoming http request. -func remote(req types.ExposeRequest, ip string) (string, error) { - remoteIP, _, err := net.SplitHostPort(req.Remote) - if err != nil { - return "", err - } - if remoteIP == "" { - host, _, err := net.SplitHostPort(ip) - if err != nil { - return "", err - } - return fmt.Sprintf("%s%s", host, req.Remote), nil - } - return req.Remote, nil -} - -// helper function for parsed URL query strings -func firstValueOrEmpty(x []string) string { - if len(x) > 0 { - return x[0] - } - return "" -} - -// helper function to build tcpip address -func tcpipAddress(nicID tcpip.NICID, remote string) (address tcpip.FullAddress, err error) { - - // build the address manual way - split := strings.Split(remote, ":") - if len(split) != 2 { - return address, errors.New("invalid remote addr") - } - - port, err := strconv.ParseUint(split[1], 10, 16) - if err != nil { - return address, err - - } - - address = tcpip.FullAddress{ - NIC: nicID, - Addr: tcpip.AddrFrom4Slice(net.ParseIP(split[0]).To4()), - Port: uint16(port), - } - - return address, err -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/forwarder/tcp.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/forwarder/tcp.go deleted file mode 100644 index ae18ada55e..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/forwarder/tcp.go +++ /dev/null @@ -1,67 +0,0 @@ -package forwarder - -import ( - "context" - "fmt" - "net" - "sync" - - "github.com/inetaf/tcpproxy" - log "github.com/sirupsen/logrus" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/adapters/gonet" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport/tcp" - "gvisor.dev/gvisor/pkg/waiter" -) - -const linkLocalSubnet = "169.254.0.0/16" - -func TCP(s *stack.Stack, nat map[tcpip.Address]tcpip.Address, natLock *sync.Mutex, ec2MetadataAccess bool) *tcp.Forwarder { - return tcp.NewForwarder(s, 0, 10, func(r *tcp.ForwarderRequest) { - localAddress := r.ID().LocalAddress - - if (!ec2MetadataAccess) && linkLocal().Contains(localAddress) { - r.Complete(true) - return - } - - natLock.Lock() - if replaced, ok := nat[localAddress]; ok { - localAddress = replaced - } - natLock.Unlock() - outbound, err := net.Dial("tcp", net.JoinHostPort(localAddress.String(), fmt.Sprint(r.ID().LocalPort))) - if err != nil { - log.Tracef("net.Dial() = %v", err) - r.Complete(true) - return - } - - var wq waiter.Queue - ep, tcpErr := r.CreateEndpoint(&wq) - r.Complete(false) - if tcpErr != nil { - if _, ok := tcpErr.(*tcpip.ErrConnectionRefused); ok { - // transient error - log.Debugf("r.CreateEndpoint() = %v", tcpErr) - } else { - log.Errorf("r.CreateEndpoint() = %v", tcpErr) - } - return - } - - remote := tcpproxy.DialProxy{ - DialContext: func(_ context.Context, _, _ string) (net.Conn, error) { - return outbound, nil - }, - } - remote.HandleConn(gonet.NewTCPConn(&wq, ep)) - }) -} - -func linkLocal() *tcpip.Subnet { - _, parsedSubnet, _ := net.ParseCIDR(linkLocalSubnet) // CoreOS VM tries to connect to Amazon EC2 metadata service - subnet, _ := tcpip.NewSubnet(tcpip.AddrFromSlice(parsedSubnet.IP), tcpip.MaskFromBytes(parsedSubnet.Mask)) - return &subnet -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/forwarder/udp.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/forwarder/udp.go deleted file mode 100644 index 7b00312a74..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/forwarder/udp.go +++ /dev/null @@ -1,55 +0,0 @@ -package forwarder - -import ( - "net" - "strconv" - "sync" - - log "github.com/sirupsen/logrus" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/adapters/gonet" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport/udp" - "gvisor.dev/gvisor/pkg/waiter" -) - -func UDP(s *stack.Stack, nat map[tcpip.Address]tcpip.Address, natLock *sync.Mutex, ec2MetadataAccess bool) *udp.Forwarder { - return udp.NewForwarder(s, func(r *udp.ForwarderRequest) { - localAddress := r.ID().LocalAddress - - if (!ec2MetadataAccess) && linkLocal().Contains(localAddress) || (localAddress == header.IPv4Broadcast) { - return - } - - natLock.Lock() - if replaced, ok := nat[localAddress]; ok { - localAddress = replaced - } - natLock.Unlock() - - var wq waiter.Queue - ep, tcpErr := r.CreateEndpoint(&wq) - if tcpErr != nil { - if _, ok := tcpErr.(*tcpip.ErrConnectionRefused); ok { - // transient error - log.Debugf("r.CreateEndpoint() = %v", tcpErr) - } else { - log.Errorf("r.CreateEndpoint() = %v", tcpErr) - } - return - } - - p, _ := NewUDPProxy(&autoStoppingListener{underlying: gonet.NewUDPConn(&wq, ep)}, func() (net.Conn, error) { - return net.Dial("udp", net.JoinHostPort(localAddress.String(), strconv.Itoa(int(r.ID().LocalPort)))) - }) - go func() { - p.Run() - - // note that at this point packets that are sent to the current forwarder session - // will be dropped. We will start processing the packets again when we get a new - // forwarder request. - ep.Close() - }() - }) -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/forwarder/udp_proxy.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/forwarder/udp_proxy.go deleted file mode 100644 index 246c554fbf..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/services/forwarder/udp_proxy.go +++ /dev/null @@ -1,196 +0,0 @@ -package forwarder - -// Modified version of https://github.com/moby/moby/blob/master/cmd/docker-proxy/udp_proxy.go and -// https://github.com/moby/vpnkit/blob/master/go/pkg/libproxy/udp_proxy.go - -import ( - "encoding/binary" - "io" - "net" - "strings" - "sync" - "syscall" - "time" - - log "github.com/sirupsen/logrus" -) - -const ( - // UDPConnTrackTimeout is the timeout used for UDP connection tracking - UDPConnTrackTimeout = 90 * time.Second - // UDPBufSize is the buffer size for the UDP proxy - UDPBufSize = 65507 -) - -// A net.Addr where the IP is split into two fields so you can use it as a key -// in a map: -type connTrackKey struct { - IPHigh uint64 - IPLow uint64 - Port int -} - -func newConnTrackKey(addr *net.UDPAddr) *connTrackKey { - if len(addr.IP) == net.IPv4len { - return &connTrackKey{ - IPHigh: 0, - IPLow: uint64(binary.BigEndian.Uint32(addr.IP)), - Port: addr.Port, - } - } - return &connTrackKey{ - IPHigh: binary.BigEndian.Uint64(addr.IP[:8]), - IPLow: binary.BigEndian.Uint64(addr.IP[8:]), - Port: addr.Port, - } -} - -type connTrackMap map[connTrackKey]net.Conn - -// UDPProxy is proxy for which handles UDP datagrams. It implements the Proxy -// interface to handle UDP traffic forwarding between the frontend and backend -// addresses. -type UDPProxy struct { - listener udpConn - dialer func() (net.Conn, error) - connTrackTable connTrackMap - connTrackLock sync.Mutex -} - -// NewUDPProxy creates a new UDPProxy. -func NewUDPProxy(listener udpConn, dialer func() (net.Conn, error)) (*UDPProxy, error) { - return &UDPProxy{ - listener: listener, - connTrackTable: make(connTrackMap), - dialer: dialer, - }, nil -} - -func (proxy *UDPProxy) replyLoop(proxyConn net.Conn, clientAddr net.Addr, clientKey *connTrackKey) { - defer func() { - proxy.connTrackLock.Lock() - delete(proxy.connTrackTable, *clientKey) - proxy.connTrackLock.Unlock() - proxyConn.Close() - }() - - readBuf := make([]byte, UDPBufSize) - for { - _ = proxyConn.SetReadDeadline(time.Now().Add(UDPConnTrackTimeout)) - again: - read, err := proxyConn.Read(readBuf) - if read == 0 && err == nil { - // treat this condition same as EOF - return - } - if err != nil { - if err, ok := err.(*net.OpError); ok && err.Err == syscall.ECONNREFUSED { - // This will happen if the last write failed - // (e.g: nothing is actually listening on the - // proxied port on the container), ignore it - // and continue until UDPConnTrackTimeout - // expires: - goto again - } - return - } - for i := 0; i != read; { - written, err := proxy.listener.WriteTo(readBuf[i:read], clientAddr) - if err != nil { - return - } - i += written - } - } -} - -// Run starts forwarding the traffic using UDP. -func (proxy *UDPProxy) Run() { - readBuf := make([]byte, UDPBufSize) - for { - read, from, err := proxy.listener.ReadFrom(readBuf) - if err != nil { - // NOTE: Apparently ReadFrom doesn't return - // ECONNREFUSED like Read do (see comment in - // UDPProxy.replyLoop) - if !isClosedError(err) { - log.Debugf("Stopping udp proxy (%s)", err) - } - break - } - - fromKey := newConnTrackKey(from.(*net.UDPAddr)) - proxy.connTrackLock.Lock() - proxyConn, hit := proxy.connTrackTable[*fromKey] - if !hit { - proxyConn, err = proxy.dialer() - if err != nil { - log.Errorf("Can't proxy a datagram to udp: %s\n", err) - proxy.connTrackLock.Unlock() - continue - } - proxy.connTrackTable[*fromKey] = proxyConn - go proxy.replyLoop(proxyConn, from, fromKey) - } - proxy.connTrackLock.Unlock() - for i := 0; i != read; { - _ = proxyConn.SetReadDeadline(time.Now().Add(UDPConnTrackTimeout)) - written, err := proxyConn.Write(readBuf[i:read]) - if err != nil { - log.Errorf("Can't proxy a datagram to udp: %s\n", err) - break - } - i += written - } - } -} - -// Close stops forwarding the traffic. -func (proxy *UDPProxy) Close() error { - proxy.listener.Close() - proxy.connTrackLock.Lock() - defer proxy.connTrackLock.Unlock() - for _, conn := range proxy.connTrackTable { - conn.Close() - } - return nil -} - -func isClosedError(err error) bool { - /* This comparison is ugly, but unfortunately, net.go doesn't export errClosing. - * See: - * http://golang.org/src/pkg/net/net.go - * https://code.google.com/p/go/issues/detail?id=4337 - * https://groups.google.com/forum/#!msg/golang-nuts/0_aaCvBmOcM/SptmDyX1XJMJ - */ - return strings.HasSuffix(err.Error(), "use of closed network connection") -} - -type udpConn interface { - ReadFrom(b []byte) (int, net.Addr, error) - WriteTo(b []byte, addr net.Addr) (int, error) - SetReadDeadline(t time.Time) error - io.Closer -} - -type autoStoppingListener struct { - underlying udpConn -} - -func (l *autoStoppingListener) ReadFrom(b []byte) (int, net.Addr, error) { - _ = l.underlying.SetReadDeadline(time.Now().Add(UDPConnTrackTimeout)) - return l.underlying.ReadFrom(b) -} - -func (l *autoStoppingListener) WriteTo(b []byte, addr net.Addr) (int, error) { - _ = l.underlying.SetReadDeadline(time.Now().Add(UDPConnTrackTimeout)) - return l.underlying.WriteTo(b, addr) -} - -func (l *autoStoppingListener) SetReadDeadline(t time.Time) error { - return l.underlying.SetReadDeadline(t) -} - -func (l *autoStoppingListener) Close() error { - return l.underlying.Close() -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/sshclient/bastion.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/sshclient/bastion.go deleted file mode 100644 index c3614be494..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/sshclient/bastion.go +++ /dev/null @@ -1,198 +0,0 @@ -package sshclient - -import ( - "bufio" - "context" - "errors" - "fmt" - "net" - "net/url" - "os" - "os/user" - "path/filepath" - "strconv" - "sync" - "time" - - "github.com/sirupsen/logrus" - "golang.org/x/crypto/ssh" - "golang.org/x/crypto/ssh/knownhosts" -) - -var ( - homedirOnce sync.Once - homedir string -) - -// Modified version of podman ssh client library, until a shared module exists - -type Bastion struct { - Client *ssh.Client - Config *ssh.ClientConfig - Host string - Port string - Path string - connect ConnectCallback -} - -type ConnectCallback func(ctx context.Context, bastion *Bastion) (net.Conn, error) - -func PublicKey(path string, passphrase []byte) (ssh.Signer, error) { - key, err := os.ReadFile(path) - if err != nil { - return nil, err - } - - signer, err := ssh.ParsePrivateKey(key) - if err != nil { - if _, ok := err.(*ssh.PassphraseMissingError); !ok { - return nil, err - } - return ssh.ParsePrivateKeyWithPassphrase(key, passphrase) - } - return signer, nil -} - -func HostKey(host string) ssh.PublicKey { - // parse OpenSSH known_hosts file - // ssh or use ssh-keyscan to get initial key - knownHosts := filepath.Join(getHome(), ".ssh", "known_hosts") - fd, err := os.Open(knownHosts) - if err != nil { - logrus.Error(err) - return nil - } - - // support -H parameter for ssh-keyscan - hashhost := knownhosts.HashHostname(host) - - scanner := bufio.NewScanner(fd) - for scanner.Scan() { - _, hosts, key, _, _, err := ssh.ParseKnownHosts(scanner.Bytes()) - if err != nil { - logrus.Errorf("Failed to parse known_hosts: %s", scanner.Text()) - continue - } - - for _, h := range hosts { - if h == host || h == hashhost { - return key - } - } - } - - return nil -} - -func CreateBastion(_url *url.URL, passPhrase string, identity string, initial net.Conn, connect ConnectCallback) (*Bastion, error) { - var authMethods []ssh.AuthMethod - - if len(identity) > 0 { - s, err := PublicKey(identity, []byte(passPhrase)) - if err != nil { - return nil, fmt.Errorf("failed to parse identity %q: %w", identity, err) - } - authMethods = append(authMethods, ssh.PublicKeys(s)) - } - - if pw, found := _url.User.Password(); found { - authMethods = append(authMethods, ssh.Password(pw)) - } - - if len(authMethods) == 0 { - return nil, errors.New("no available auth methods") - } - - port := _url.Port() - if port == "" { - port = "22" - } - - secure, _ := strconv.ParseBool(_url.Query().Get("secure")) - - callback := ssh.InsecureIgnoreHostKey() // #nosec - if secure { - host := _url.Hostname() - if port != "22" { - host = fmt.Sprintf("[%s]:%s", host, port) - } - key := HostKey(host) - if key != nil { - callback = ssh.FixedHostKey(key) - } - } - - config := &ssh.ClientConfig{ - User: _url.User.Username(), - Auth: authMethods, - HostKeyCallback: callback, - HostKeyAlgorithms: []string{ - ssh.KeyAlgoRSA, - ssh.KeyAlgoECDSA256, - ssh.KeyAlgoECDSA384, - ssh.KeyAlgoECDSA521, - ssh.KeyAlgoED25519, - }, - Timeout: 5 * time.Second, - } - - if connect == nil { - connect = func(_ context.Context, bastion *Bastion) (net.Conn, error) { - conn, err := net.DialTimeout("tcp", - net.JoinHostPort(bastion.Host, bastion.Port), - bastion.Config.Timeout, - ) - - return conn, err - } - } - - bastion := Bastion{nil, config, _url.Hostname(), port, _url.Path, connect} - return &bastion, bastion.reconnect(context.Background(), initial) -} - -func (bastion *Bastion) Reconnect(ctx context.Context) error { - return bastion.reconnect(ctx, nil) -} - -func (bastion *Bastion) Close() { - if bastion.Client != nil { - bastion.Client.Close() - } -} - -func (bastion *Bastion) reconnect(ctx context.Context, conn net.Conn) error { - var err error - if conn == nil { - conn, err = bastion.connect(ctx, bastion) - } - if err != nil { - return fmt.Errorf("connection to bastion host (%s) failed: %w", bastion.Host, err) - } - addr := net.JoinHostPort(bastion.Host, bastion.Port) - c, chans, reqs, err := ssh.NewClientConn(conn, addr, bastion.Config) - if err != nil { - return err - } - bastion.Client = ssh.NewClient(c, chans, reqs) - return nil -} - -func getHome() string { - homedirOnce.Do(func() { - env, err := os.UserHomeDir() - if env == "" || err != nil { - usr, err := user.LookupId(fmt.Sprintf("%d", os.Getuid())) - if err != nil { - logrus.Error("Could not determine user home directory!") - homedir = "" - return - } - - homedir = usr.HomeDir - return - } - homedir = env - }) - return homedir -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/sshclient/npipe_unsupported.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/sshclient/npipe_unsupported.go deleted file mode 100644 index 16bc936005..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/sshclient/npipe_unsupported.go +++ /dev/null @@ -1,13 +0,0 @@ -//go:build !windows - -package sshclient - -import ( - "errors" - "net" - "net/url" -) - -func ListenNpipe(_ *url.URL) (net.Listener, error) { - return nil, errors.New("named pipes are not supported by this platform") -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/sshclient/npipe_windows.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/sshclient/npipe_windows.go deleted file mode 100644 index e53964ee3b..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/sshclient/npipe_windows.go +++ /dev/null @@ -1,42 +0,0 @@ -package sshclient - -import ( - "fmt" - "net" - "net/url" - "os/user" - "strings" - - winio "github.com/Microsoft/go-winio" - "github.com/sirupsen/logrus" -) - -// https://docs.microsoft.com/en-us/windows-hardware/drivers/kernel/sddl-for-device-objects -// Allow built-in admins and system/kernel components -const SddlDevObjSysAllAdmAll = "D:P(A;;GA;;;SY)(A;;GA;;;BA)" - -func ListenNpipe(socketURI *url.URL) (net.Listener, error) { - user, err := user.Current() - if err != nil { - return nil, err - } - - // Also allow current user - sddl := fmt.Sprintf("%s(A;;GA;;;%s)", SddlDevObjSysAllAdmAll, user.Uid) - config := winio.PipeConfig{ - SecurityDescriptor: sddl, - MessageMode: true, - InputBufferSize: 65536, - OutputBufferSize: 65536, - } - path := strings.ReplaceAll(socketURI.Path, "/", "\\") - - listener, err := winio.ListenPipe(path, &config) - if err != nil { - return listener, fmt.Errorf("error listening on socket: %s: %w", socketURI, err) - } - - logrus.Info("Listening on: " + path) - - return listener, nil -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/sshclient/ssh_forwarder.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/sshclient/ssh_forwarder.go deleted file mode 100644 index ddf2247acf..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/sshclient/ssh_forwarder.go +++ /dev/null @@ -1,227 +0,0 @@ -package sshclient - -import ( - "context" - "fmt" - "io" - "net" - "net/url" - "os" - "runtime" - "strings" - "sync" - "time" - - "github.com/containers/gvisor-tap-vsock/pkg/fs" - "github.com/containers/gvisor-tap-vsock/pkg/utils" - "github.com/sirupsen/logrus" -) - -type CloseWriteStream interface { - io.Reader - io.WriteCloser - CloseWrite() error -} - -type CloseWriteConn interface { - net.Conn - CloseWriteStream -} - -type SSHForward struct { - listener net.Listener - bastion *Bastion - sock *url.URL -} - -type SSHDialer interface { - DialContextTCP(ctx context.Context, addr string) (net.Conn, error) -} - -type genericTCPDialer struct { -} - -var defaultTCPDialer genericTCPDialer - -func (dialer *genericTCPDialer) DialContextTCP(ctx context.Context, addr string) (net.Conn, error) { - var d net.Dialer - return d.DialContext(ctx, "tcp", addr) -} - -func CreateSSHForward(ctx context.Context, src *url.URL, dest *url.URL, identity string, dialer SSHDialer) (*SSHForward, error) { - if dialer == nil { - dialer = &defaultTCPDialer - } - - return setupProxy(ctx, src, dest, identity, "", dialer) -} - -func CreateSSHForwardPassphrase(ctx context.Context, src *url.URL, dest *url.URL, identity string, passphrase string, dialer SSHDialer) (*SSHForward, error) { - if dialer == nil { - dialer = &defaultTCPDialer - } - - return setupProxy(ctx, src, dest, identity, passphrase, dialer) -} - -func (forward *SSHForward) AcceptAndTunnel(ctx context.Context) error { - return acceptConnection(ctx, forward.listener, forward.bastion, forward.sock) -} - -func (forward *SSHForward) Tunnel(ctx context.Context) (CloseWriteConn, error) { - return connectForward(ctx, forward.bastion) -} - -func (forward *SSHForward) Close() { - if forward.listener != nil { - forward.listener.Close() - } - if forward.bastion != nil { - forward.bastion.Close() - } -} - -func connectForward(ctx context.Context, bastion *Bastion) (CloseWriteConn, error) { - for retries := 1; ; retries++ { - forward, err := bastion.Client.Dial("unix", bastion.Path) - if err == nil { - return forward.(CloseWriteConn), nil - } - if retries > 2 { - return nil, fmt.Errorf("couldn't reestablish ssh tunnel on path: %s: %w", bastion.Path, err) - } - // Check if ssh connection is still alive - _, _, err = bastion.Client.SendRequest("alive@gvproxy", true, nil) - if err != nil { - for bastionRetries := 1; ; bastionRetries++ { - err = bastion.Reconnect(ctx) - if err == nil { - break - } - if bastionRetries > 2 || !utils.Sleep(ctx, 200*time.Millisecond) { - return nil, fmt.Errorf("couldn't reestablish ssh connection: %s: %w", bastion.Host, err) - } - } - } - - if !utils.Sleep(ctx, 200*time.Millisecond) { - retries = 3 - } - } -} - -func listenUnix(socketURI *url.URL) (net.Listener, error) { - path := socketURI.Path - if runtime.GOOS == "windows" { - path = strings.TrimPrefix(path, "/") - } - - if err := os.Remove(path); err != nil && !os.IsNotExist(err) { - return nil, err - } - - oldmask := fs.Umask(0177) - defer fs.Umask(oldmask) - listener, err := net.Listen("unix", path) - if err != nil { - return listener, fmt.Errorf("error listening on socket: %s: %w", socketURI.Path, err) - } - - return listener, nil -} - -func setupProxy(ctx context.Context, socketURI *url.URL, dest *url.URL, identity string, passphrase string, dialer SSHDialer) (*SSHForward, error) { - var ( - listener net.Listener - err error - ) - switch socketURI.Scheme { - case "unix": - listener, err = listenUnix(socketURI) - if err != nil { - return &SSHForward{}, err - } - case "npipe": - listener, err = ListenNpipe(socketURI) - if err != nil { - return &SSHForward{}, err - } - case "": - // empty URL = Tunnel Only, no Accept - default: - return &SSHForward{}, fmt.Errorf("URI scheme not supported: %s", socketURI.Scheme) - } - - connectFunc := func(ctx context.Context, bastion *Bastion) (net.Conn, error) { - timeout := 5 * time.Second - if bastion != nil { - timeout = bastion.Config.Timeout - } - ctx, cancel := context.WithTimeout(ctx, timeout) - conn, err := dialer.DialContextTCP(ctx, dest.Host) - if cancel != nil { - cancel() - } - - return conn, err - } - - createBastion := func() (*Bastion, error) { - conn, err := connectFunc(ctx, nil) - if err != nil { - return nil, err - } - return CreateBastion(dest, passphrase, identity, conn, connectFunc) - } - bastion, err := utils.Retry(ctx, createBastion, "Waiting for sshd") - if err != nil { - return &SSHForward{}, fmt.Errorf("setupProxy failed: %w", err) - } - - logrus.Debugf("Socket forward established: %s -> %s\n", socketURI.Path, dest.Path) - - return &SSHForward{listener, bastion, socketURI}, nil -} - -func acceptConnection(ctx context.Context, listener net.Listener, bastion *Bastion, socketURI *url.URL) error { - con, err := listener.Accept() - if err != nil { - return fmt.Errorf("error accepting on socket: %s: %w", socketURI.Path, err) - } - - src, ok := con.(CloseWriteStream) - if !ok { - con.Close() - return fmt.Errorf("underlying socket does not support half-close %s: %w", socketURI.Path, err) - } - - var dest CloseWriteStream - - dest, err = connectForward(ctx, bastion) - if err != nil { - con.Close() - logrus.Error(err) - return nil // eat - } - - complete := new(sync.WaitGroup) - complete.Add(2) - go forward(src, dest, complete) - go forward(dest, src, complete) - - go func() { - complete.Wait() - src.Close() - dest.Close() - }() - - return nil -} - -func forward(src io.ReadCloser, dest CloseWriteStream, complete *sync.WaitGroup) { - defer complete.Done() - _, _ = io.Copy(dest, src) - - // Trigger an EOF on the other end - _ = dest.CloseWrite() -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/tap/connection.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/tap/connection.go deleted file mode 100644 index 1ab6e87341..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/tap/connection.go +++ /dev/null @@ -1,10 +0,0 @@ -package tap - -import ( - "net" -) - -type protocolConn struct { - net.Conn - protocolImpl protocol -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/tap/ip_pool.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/tap/ip_pool.go deleted file mode 100644 index ffc7c6499b..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/tap/ip_pool.go +++ /dev/null @@ -1,88 +0,0 @@ -package tap - -import ( - "errors" - "maps" - "math" - "net" - "sync" - - "github.com/apparentlymart/go-cidr/cidr" -) - -type IPPool struct { - base *net.IPNet - count uint64 - leases map[string]string - lock sync.Mutex -} - -func NewIPPool(base *net.IPNet) *IPPool { - return &IPPool{ - base: base, - count: cidr.AddressCount(base), - leases: make(map[string]string), - } -} - -func (p *IPPool) Leases() map[string]string { - p.lock.Lock() - defer p.lock.Unlock() - leases := map[string]string{} - maps.Copy(leases, p.leases) - return leases -} - -func (p *IPPool) Mask() int { - ones, _ := p.base.Mask.Size() - return ones -} - -func (p *IPPool) GetOrAssign(mac string) (net.IP, error) { - p.lock.Lock() - defer p.lock.Unlock() - - for ip, candidate := range p.leases { - if candidate == mac { - return net.ParseIP(ip), nil - } - } - - if p.count > math.MaxInt { - return nil, errors.New("IP pool exceeds maximum number of IP addresses") - } - for i := 1; i < int(p.count); i++ { - candidate, err := cidr.Host(p.base, i) - if err != nil { - continue - } - if _, ok := p.leases[candidate.String()]; !ok { - p.leases[candidate.String()] = mac - return candidate, nil - } - } - return nil, errors.New("cannot find available IP") -} - -func (p *IPPool) Reserve(ip net.IP, mac string) { - p.lock.Lock() - defer p.lock.Unlock() - - p.leases[ip.String()] = mac -} - -func (p *IPPool) Release(given string) { - p.lock.Lock() - defer p.lock.Unlock() - - var found string - for ip, mac := range p.leases { - if mac == given { - found = ip - break - } - } - if found != "" { - delete(p.leases, found) - } -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/tap/link.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/tap/link.go deleted file mode 100644 index 373594548a..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/tap/link.go +++ /dev/null @@ -1,146 +0,0 @@ -package tap - -import ( - "net" - - "github.com/google/gopacket" - "github.com/google/gopacket/layers" - log "github.com/sirupsen/logrus" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -type LinkEndpoint struct { - debug bool - mtu uint32 - mac tcpip.LinkAddress - ip string - virtualIPs map[string]struct{} - - dispatcher stack.NetworkDispatcher - networkSwitch NetworkSwitch -} - -func NewLinkEndpoint(debug bool, mtu uint32, macAddress string, ip string, virtualIPs []string) (*LinkEndpoint, error) { - linkAddr, err := net.ParseMAC(macAddress) - if err != nil { - return nil, err - } - set := make(map[string]struct{}) - for _, virtualIP := range virtualIPs { - set[virtualIP] = struct{}{} - } - return &LinkEndpoint{ - debug: debug, - mtu: mtu, - mac: tcpip.LinkAddress(linkAddr), - ip: ip, - virtualIPs: set, - }, nil -} - -func (e *LinkEndpoint) ARPHardwareType() header.ARPHardwareType { - return header.ARPHardwareEther -} - -func (e *LinkEndpoint) Connect(networkSwitch NetworkSwitch) { - e.networkSwitch = networkSwitch -} - -func (e *LinkEndpoint) Attach(dispatcher stack.NetworkDispatcher) { - e.dispatcher = dispatcher -} - -func (e *LinkEndpoint) IsAttached() bool { - return e.dispatcher != nil -} - -func (e *LinkEndpoint) DeliverNetworkPacket(protocol tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer) { - e.dispatcher.DeliverNetworkPacket(protocol, pkt) -} - -func (e *LinkEndpoint) AddHeader(_ *stack.PacketBuffer) { -} - -func (e *LinkEndpoint) ParseHeader(*stack.PacketBuffer) bool { return true } - -func (e *LinkEndpoint) Capabilities() stack.LinkEndpointCapabilities { - return stack.CapabilityResolutionRequired | stack.CapabilityRXChecksumOffload -} - -func (e *LinkEndpoint) LinkAddress() tcpip.LinkAddress { - return e.mac -} - -func (e *LinkEndpoint) SetLinkAddress(addr tcpip.LinkAddress) { - e.mac = addr -} - -func (e *LinkEndpoint) MaxHeaderLength() uint16 { - return uint16(header.EthernetMinimumSize) -} - -func (e *LinkEndpoint) MTU() uint32 { - return e.mtu -} - -func (e *LinkEndpoint) SetMTU(mtu uint32) { - e.mtu = mtu -} - -func (e *LinkEndpoint) Wait() {} -func (e *LinkEndpoint) Close() {} -func (e *LinkEndpoint) SetOnCloseAction(_ func()) {} - -func (e *LinkEndpoint) WritePackets(pkts stack.PacketBufferList) (int, tcpip.Error) { - n := 0 - for _, p := range pkts.AsSlice() { - if err := e.writePacket(p.EgressRoute, p.NetworkProtocolNumber, p); err != nil { - return n, err - } - n++ - } - return n, nil -} - -func (e *LinkEndpoint) writePacket(r stack.RouteInfo, protocol tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer) tcpip.Error { - // Preserve the src address if it's set in the route. - srcAddr := e.LinkAddress() - if r.LocalLinkAddress != "" { - srcAddr = r.LocalLinkAddress - } - eth := header.Ethernet(pkt.LinkHeader().Push(header.EthernetMinimumSize)) - eth.Encode(&header.EthernetFields{ - Type: protocol, - SrcAddr: srcAddr, - DstAddr: r.RemoteLinkAddress, - }) - - h := header.ARP(pkt.NetworkHeader().Slice()) - if h.IsValid() && - h.Op() == header.ARPReply { - ip := tcpip.AddrFromSlice(h.ProtocolAddressSender()).String() - _, ok := e.virtualIPs[ip] - if ip != e.IP() && !ok { - log.Debugf("dropping spoofing packets from the gateway about IP %s", ip) - return nil - } - } - - if e.debug { - packet := gopacket.NewPacket(pkt.ToView().AsSlice(), layers.LayerTypeEthernet, gopacket.Default) - log.Info(packet.String()) - } - - e.networkSwitch.DeliverNetworkPacket(protocol, pkt) - return nil -} - -func (e *LinkEndpoint) WriteRawPacket(_ *stack.PacketBuffer) tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -func (e *LinkEndpoint) IP() string { - return e.ip -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/tap/protocols.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/tap/protocols.go deleted file mode 100644 index 08d719a9e1..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/tap/protocols.go +++ /dev/null @@ -1,79 +0,0 @@ -package tap - -import ( - "encoding/binary" - "math" - - log "github.com/sirupsen/logrus" -) - -type protocol interface { - Stream() bool -} - -type streamProtocol interface { - protocol - Buf() []byte - Write(buf []byte, size int) - Read(buf []byte) int -} - -type hyperkitProtocol struct { -} - -func (s *hyperkitProtocol) Stream() bool { - return true -} - -func (s *hyperkitProtocol) Buf() []byte { - return make([]byte, 2) -} - -func (s *hyperkitProtocol) Write(buf []byte, size int) { - if size < 0 || size > math.MaxUint16 { - log.Warnf("size out of range. Resetting to %d", math.MaxUint16) - size = math.MaxUint16 - } - binary.LittleEndian.PutUint16(buf, uint16(size)) //#nosec: G115 -} - -func (s *hyperkitProtocol) Read(buf []byte) int { - return int(binary.LittleEndian.Uint16(buf[0:2])) -} - -type qemuProtocol struct { -} - -func (s *qemuProtocol) Stream() bool { - return true -} - -func (s *qemuProtocol) Buf() []byte { - return make([]byte, 4) -} - -func (s *qemuProtocol) Write(buf []byte, size int) { - if size > math.MaxInt32 { - log.Warnf("size exceeds max limit. Resetting to: %d", math.MaxInt32) - size = math.MaxInt32 - } - binary.BigEndian.PutUint32(buf, uint32(size)) //#nosec: G115. Safely checked -} - -func (s *qemuProtocol) Read(buf []byte) int { - return int(binary.BigEndian.Uint32(buf[0:4])) -} - -type bessProtocol struct { -} - -func (s *bessProtocol) Stream() bool { - return false -} - -type vfkitProtocol struct { -} - -func (s *vfkitProtocol) Stream() bool { - return false -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/tap/switch.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/tap/switch.go deleted file mode 100644 index 944b618f3a..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/tap/switch.go +++ /dev/null @@ -1,325 +0,0 @@ -package tap - -import ( - "bufio" - "context" - "errors" - "fmt" - "io" - "net" - "sync" - "sync/atomic" - "syscall" - - "github.com/containers/gvisor-tap-vsock/pkg/notification" - "github.com/containers/gvisor-tap-vsock/pkg/types" - "github.com/google/gopacket" - "github.com/google/gopacket/layers" - log "github.com/sirupsen/logrus" - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -type VirtualDevice interface { - DeliverNetworkPacket(protocol tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer) - LinkAddress() tcpip.LinkAddress - IP() string -} - -type NetworkSwitch interface { - DeliverNetworkPacket(protocol tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer) -} - -type Switch struct { - Sent uint64 - Received uint64 - - debug bool - - nextConnID int - conns map[int]protocolConn - connLock sync.Mutex - - cam map[tcpip.LinkAddress]int - camLock sync.RWMutex - - writeLock sync.Mutex - - gateway VirtualDevice - - notificationSender *notification.NotificationSender -} - -func NewSwitch(debug bool) *Switch { - return &Switch{ - debug: debug, - conns: make(map[int]protocolConn), - cam: make(map[tcpip.LinkAddress]int), - } -} - -func (e *Switch) CAM() map[string]int { - e.camLock.RLock() - defer e.camLock.RUnlock() - ret := make(map[string]int) - for address, port := range e.cam { - ret[address.String()] = port - } - return ret -} - -func (e *Switch) Connect(ep VirtualDevice) { - e.gateway = ep -} - -func (e *Switch) DeliverNetworkPacket(_ tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer) { - if err := e.tx(pkt); err != nil { - log.Error(err) - } -} - -func (e *Switch) Accept(ctx context.Context, rawConn net.Conn, protocol types.Protocol) error { - conn := protocolConn{Conn: rawConn, protocolImpl: protocolImplementation(protocol)} - log.Debugf("new connection from %s to %s", conn.RemoteAddr().String(), conn.LocalAddr().String()) - id, failed := e.connect(conn) - if failed { - log.Error("connection failed") - return conn.Close() - - } - - defer func() { - e.connLock.Lock() - defer e.connLock.Unlock() - e.disconnect(id, conn) - }() - if err := e.rx(ctx, id, conn); err != nil { - err := fmt.Errorf("cannot receive packets from %s, disconnecting: %w", conn.RemoteAddr().String(), err) - log.Error(err) - return err - } - return nil -} - -func (e *Switch) connect(conn protocolConn) (int, bool) { - e.connLock.Lock() - defer e.connLock.Unlock() - - id := e.nextConnID - e.nextConnID++ - - e.conns[id] = conn - return id, false -} - -func (e *Switch) tx(pkt *stack.PacketBuffer) error { - return e.txPkt(pkt) -} - -func (e *Switch) txPkt(pkt *stack.PacketBuffer) error { - e.writeLock.Lock() - defer e.writeLock.Unlock() - - e.connLock.Lock() - defer e.connLock.Unlock() - - buf := pkt.ToView().AsSlice() - eth := header.Ethernet(buf) - dst := eth.DestinationAddress() - src := eth.SourceAddress() - - size := pkt.Size() - if size < 0 { - return fmt.Errorf("packet size out of range") - } - if dst == header.EthernetBroadcastAddress { - e.camLock.RLock() - srcID, ok := e.cam[src] - if !ok { - srcID = -1 - } - e.camLock.RUnlock() - for id, conn := range e.conns { - if id == srcID { - continue - } - - err := e.txBuf(id, conn, buf) - if err != nil { - return err - } - - atomic.AddUint64(&e.Sent, uint64(size)) - } - } else { - e.camLock.RLock() - id, ok := e.cam[dst] - if !ok { - e.camLock.RUnlock() - return nil - } - e.camLock.RUnlock() - conn := e.conns[id] - err := e.txBuf(id, conn, buf) - if err != nil { - return err - } - atomic.AddUint64(&e.Sent, uint64(size)) - } - return nil -} - -func (e *Switch) txBuf(id int, conn protocolConn, buf []byte) error { - if conn.protocolImpl.Stream() { - size := conn.protocolImpl.(streamProtocol).Buf() - conn.protocolImpl.(streamProtocol).Write(size, len(buf)) - buf = append(size, buf...) - } - for { - if _, err := conn.Write(buf); err != nil { - if errors.Is(err, syscall.ENOBUFS) { - // socket buffer can be full keep retrying sending the same data - // again until it works or we get a different error - // https://github.com/containers/gvisor-tap-vsock/issues/367 - continue - } - e.disconnect(id, conn) - return err - } - return nil - } -} - -func (e *Switch) disconnect(id int, conn net.Conn) { - e.camLock.Lock() - defer e.camLock.Unlock() - - for address, targetConn := range e.cam { - if targetConn == id { - if e.notificationSender != nil { - e.notificationSender.Send(types.NotificationMessage{ - NotificationType: types.ConnectionClosed, - MacAddress: address.String(), - }) - } - delete(e.cam, address) - } - } - _ = conn.Close() - delete(e.conns, id) -} - -func (e *Switch) rx(ctx context.Context, id int, conn protocolConn) error { - if conn.protocolImpl.Stream() { - return e.rxStream(ctx, id, conn, conn.protocolImpl.(streamProtocol)) - } - return e.rxNonStream(ctx, id, conn) -} - -func (e *Switch) rxNonStream(ctx context.Context, id int, conn net.Conn) error { - bufSize := 1024 * 128 - buf := make([]byte, bufSize) -loop: - for { - select { - case <-ctx.Done(): - break loop - default: - // passthrough - } - n, err := conn.Read(buf) - if err != nil { - return fmt.Errorf("cannot read size from socket: %w", err) - } - e.rxBuf(ctx, id, buf[:n]) - } - return nil -} - -func (e *Switch) rxStream(ctx context.Context, id int, conn net.Conn, sProtocol streamProtocol) error { - reader := bufio.NewReader(conn) - sizeBuf := sProtocol.Buf() -loop: - for { - select { - case <-ctx.Done(): - break loop - default: - // passthrough - } - _, err := io.ReadFull(reader, sizeBuf) - if err != nil { - return fmt.Errorf("cannot read size from socket: %w", err) - } - size := sProtocol.Read(sizeBuf) - - buf := make([]byte, size) - _, err = io.ReadFull(reader, buf) - if err != nil { - return fmt.Errorf("cannot read packet from socket: %w", err) - } - e.rxBuf(ctx, id, buf) - } - return nil -} - -func (e *Switch) rxBuf(_ context.Context, id int, buf []byte) { - if e.debug { - packet := gopacket.NewPacket(buf, layers.LayerTypeEthernet, gopacket.Default) - log.Info(packet.String()) - } - - eth := header.Ethernet(buf) - - e.camLock.Lock() - _, exists := e.cam[eth.SourceAddress()] - e.cam[eth.SourceAddress()] = id - e.camLock.Unlock() - - if !exists && e.notificationSender != nil { - e.notificationSender.Send(types.NotificationMessage{ - NotificationType: types.ConnectionEstablished, - MacAddress: eth.SourceAddress().String(), - }) - } - - if eth.DestinationAddress() != e.gateway.LinkAddress() { - pkt := stack.NewPacketBuffer(stack.PacketBufferOptions{ - Payload: buffer.MakeWithData(buf), - }) - if err := e.tx(pkt); err != nil { - log.Error(err) - } - pkt.DecRef() - } - if eth.DestinationAddress() == e.gateway.LinkAddress() || eth.DestinationAddress() == header.EthernetBroadcastAddress { - data := buffer.MakeWithData(buf) - data.TrimFront(header.EthernetMinimumSize) - pkt := stack.NewPacketBuffer(stack.PacketBufferOptions{ - Payload: data, - }) - e.gateway.DeliverNetworkPacket(eth.Type(), pkt) - pkt.DecRef() - } - - atomic.AddUint64(&e.Received, uint64(len(buf))) -} - -func protocolImplementation(protocol types.Protocol) protocol { - switch protocol { - case types.QemuProtocol: - return &qemuProtocol{} - case types.BessProtocol: - return &bessProtocol{} - case types.VfkitProtocol: - return &vfkitProtocol{} - default: - return &hyperkitProtocol{} - } -} - -func (e *Switch) SetNotificationSender(notificationSender *notification.NotificationSender) { - e.notificationSender = notificationSender -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/dial_darwin.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/dial_darwin.go deleted file mode 100644 index 2dd18e493f..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/dial_darwin.go +++ /dev/null @@ -1,10 +0,0 @@ -package transport - -import ( - "errors" - "net" -) - -func Dial(_ string) (net.Conn, string, error) { - return nil, "", errors.New("unsupported") -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/dial_linux.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/dial_linux.go deleted file mode 100644 index 56ebcbcd2b..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/dial_linux.go +++ /dev/null @@ -1,46 +0,0 @@ -package transport - -import ( - "errors" - "fmt" - "net" - "net/url" - "strconv" - - "github.com/containers/gvisor-tap-vsock/pkg/net/stdio" - mdlayhervsock "github.com/mdlayher/vsock" -) - -func Dial(endpoint string) (net.Conn, string, error) { - parsed, err := url.Parse(endpoint) - if err != nil { - return nil, "", err - } - switch parsed.Scheme { - case "vsock": - contextID, err := strconv.ParseUint(parsed.Hostname(), 10, 32) - if err != nil { - return nil, "", err - } - port, err := strconv.ParseUint(parsed.Port(), 10, 32) - if err != nil { - return nil, "", err - } - conn, err := mdlayhervsock.Dial(uint32(contextID), uint32(port), nil) - return conn, parsed.Path, err - case "unix": - conn, err := net.Dial("unix", parsed.Path) - return conn, "/connect", err - case "stdio": - var values []string - for k, vs := range parsed.Query() { - for _, v := range vs { - values = append(values, fmt.Sprintf("-%s=%s", k, v)) - } - } - conn, err := stdio.Dial(parsed.Path, values...) - return conn, "", err - default: - return nil, "", errors.New("unexpected scheme") - } -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/listen.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/listen.go deleted file mode 100644 index 979c5316b4..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/listen.go +++ /dev/null @@ -1,32 +0,0 @@ -package transport - -import ( - "errors" - "net" - "net/url" - "runtime" - "strings" -) - -func defaultListenURL(url *url.URL) (net.Listener, error) { - switch url.Scheme { - case "unix": - path := url.Path - if runtime.GOOS == "windows" { - path = strings.TrimPrefix(path, "/") - } - return net.Listen(url.Scheme, path) - case "tcp": - return net.Listen("tcp", url.Host) - default: - return nil, errors.New("unexpected scheme") - } -} - -func Listen(endpoint string) (net.Listener, error) { - parsed, err := url.Parse(endpoint) - if err != nil { - return nil, err - } - return listenURL(parsed) -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/listen_darwin.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/listen_darwin.go deleted file mode 100644 index 298db1fff5..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/listen_darwin.go +++ /dev/null @@ -1,32 +0,0 @@ -package transport - -import ( - "fmt" - "net" - "net/url" - "os" - "path" - "strconv" -) - -const DefaultURL = "vsock://null:1024/vm_directory" - -func listenURL(parsed *url.URL) (net.Listener, error) { - switch parsed.Scheme { - case "vsock": - port, err := strconv.Atoi(parsed.Port()) - if err != nil { - return nil, err - } - path := path.Join(parsed.Path, fmt.Sprintf("00000002.%08x", port)) - if err := os.Remove(path); err != nil && !os.IsNotExist(err) { - return nil, err - } - return net.ListenUnix("unix", &net.UnixAddr{ - Name: path, - Net: "unix", - }) - default: - return defaultListenURL(parsed) - } -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/listen_generic.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/listen_generic.go deleted file mode 100644 index 61923dea44..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/listen_generic.go +++ /dev/null @@ -1,12 +0,0 @@ -//go:build !darwin && !linux && !windows - -package transport - -import ( - "net" - "net/url" -) - -func listenURL(url *url.URL) (net.Listener, error) { - return defaultListenURL(url) -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/listen_linux.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/listen_linux.go deleted file mode 100644 index 5348950237..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/listen_linux.go +++ /dev/null @@ -1,35 +0,0 @@ -package transport - -import ( - "net" - "net/url" - "strconv" - - mdlayhervsock "github.com/mdlayher/vsock" -) - -const DefaultURL = "vsock://:1024" - -func listenURL(parsed *url.URL) (net.Listener, error) { - switch parsed.Scheme { - case "vsock": - port, err := strconv.ParseUint(parsed.Port(), 10, 32) - if err != nil { - return nil, err - } - - if parsed.Hostname() != "" { - cid, err := strconv.ParseUint(parsed.Hostname(), 10, 32) - if err != nil { - return nil, err - } - return mdlayhervsock.ListenContextID(uint32(cid), uint32(port), nil) - } - - return mdlayhervsock.Listen(uint32(port), nil) - case "unixpacket": - return net.Listen(parsed.Scheme, parsed.Path) - default: - return defaultListenURL(parsed) - } -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/listen_windows.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/listen_windows.go deleted file mode 100644 index 20c5d03568..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/listen_windows.go +++ /dev/null @@ -1,26 +0,0 @@ -package transport - -import ( - "net" - "net/url" - - "github.com/linuxkit/virtsock/pkg/hvsock" -) - -const DefaultURL = "vsock://00000400-FACB-11E6-BD58-64006A7986D3" - -func listenURL(parsed *url.URL) (net.Listener, error) { - switch parsed.Scheme { - case "vsock": - svcid, err := hvsock.GUIDFromString(parsed.Hostname()) - if err != nil { - return nil, err - } - return hvsock.Listen(hvsock.Addr{ - VMID: hvsock.GUIDWildcard, - ServiceID: svcid, - }) - default: - return defaultListenURL(parsed) - } -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/tunnel.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/tunnel.go deleted file mode 100644 index 06644bf0ba..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/tunnel.go +++ /dev/null @@ -1,28 +0,0 @@ -package transport - -import ( - "errors" - "fmt" - "io" - "net" - "net/http" -) - -func Tunnel(conn net.Conn, ip string, port int) error { - req, err := http.NewRequest("POST", fmt.Sprintf("/tunnel?ip=%s&port=%d", ip, port), nil) - if err != nil { - return err - } - if err := req.Write(conn); err != nil { - return err - } - - ok := make([]byte, 2) - if _, err := io.ReadFull(conn, ok); err != nil { - return err - } - if string(ok) != "OK" { - return errors.New("handshake failed") - } - return nil -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/unixgram_unix.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/unixgram_unix.go deleted file mode 100644 index 5b7de37bf7..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/unixgram_unix.go +++ /dev/null @@ -1,113 +0,0 @@ -//go:build !windows - -package transport - -import ( - "bytes" - "errors" - "fmt" - "net" - "net/url" - "syscall" -) - -type connectedUnixgramConn struct { - *net.UnixConn - remoteAddr *net.UnixAddr -} - -func connectListeningUnixgramConn(conn *net.UnixConn, remoteAddr *net.UnixAddr) (*connectedUnixgramConn, error) { - rawConn, err := conn.SyscallConn() - if err != nil { - return nil, err - } - err = rawConn.Control(func(fd uintptr) { - if err = syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_SNDBUF, 1*1024*1024); err != nil { - return - } - if err = syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_RCVBUF, 4*1024*1024); err != nil { - return - } - }) - if err != nil { - return nil, err - } - - return &connectedUnixgramConn{ - UnixConn: conn, - remoteAddr: remoteAddr, - }, nil -} - -func (conn *connectedUnixgramConn) RemoteAddr() net.Addr { - return conn.remoteAddr -} - -func (conn *connectedUnixgramConn) Write(b []byte) (int, error) { - return conn.WriteTo(b, conn.remoteAddr) -} - -func peekAddress(listeningConn *net.UnixConn) (*net.UnixAddr, error) { - rawConn, err := listeningConn.SyscallConn() - if err != nil { - return nil, err - } - - var vfkitSockaddr syscall.Sockaddr - var getRemoteAddrErr error - - magic := make([]byte, 4) - getRemoteAddr := func(fd uintptr) bool { - _, vfkitSockaddr, getRemoteAddrErr = syscall.Recvfrom(int(fd), magic, syscall.MSG_PEEK|syscall.MSG_TRUNC) - - return !errors.Is(getRemoteAddrErr, syscall.EAGAIN) - } - if err := rawConn.Read(getRemoteAddr); err != nil { - return nil, err - } - if getRemoteAddrErr != nil { - return nil, getRemoteAddrErr - } - - // If it's the old vfkit handshake, consume it - if bytes.Equal(magic, []byte("VFKT")) { - _, _, err = listeningConn.ReadFrom(magic) - if err != nil { - return nil, err - } - } - - vfkitSockaddrUnix, ok := vfkitSockaddr.(*syscall.SockaddrUnix) - if !ok { - return nil, fmt.Errorf("unexpected remote address type: %t", vfkitSockaddr) - } - if vfkitSockaddrUnix.Name == "" { - return nil, fmt.Errorf("vfkit socket address is empty") - } - - vfkitAddr := &net.UnixAddr{Name: vfkitSockaddrUnix.Name, Net: "unixgram"} - return vfkitAddr, nil -} - -func ListenUnixgram(endpoint string) (*net.UnixConn, error) { - parsed, err := url.Parse(endpoint) - if err != nil { - return nil, err - } - if parsed.Scheme != "unixgram" { - return nil, errors.New("unexpected scheme") - } - return net.ListenUnixgram("unixgram", &net.UnixAddr{ - Name: parsed.Path, - Net: "unixgram", - }) -} - -func AcceptVfkit(listeningConn *net.UnixConn) (net.Conn, error) { - peekedAddr, err := peekAddress(listeningConn) - if err != nil { - return nil, err - } - - return connectListeningUnixgramConn(listeningConn, peekedAddr) -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/unixgram_windows.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/unixgram_windows.go deleted file mode 100644 index dc237c88c8..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/transport/unixgram_windows.go +++ /dev/null @@ -1,16 +0,0 @@ -//go:build windows - -package transport - -import ( - "errors" - "net" -) - -func ListenUnixgram(_ string) (net.Conn, error) { - return nil, errors.New("unsupported 'unixgram' scheme") -} - -func AcceptVfkit(_ net.Conn) (net.Conn, error) { - return nil, errors.New("vfkit is unsupported on this platform") -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/utils/retry.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/utils/retry.go deleted file mode 100644 index 6422a1d6fa..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/utils/retry.go +++ /dev/null @@ -1,61 +0,0 @@ -package utils - -import ( - "context" - "fmt" - "time" - - "github.com/sirupsen/logrus" -) - -const maxRetries = 60 -const initialBackoff = 100 * time.Millisecond - -func Retry[T comparable](ctx context.Context, retryFunc func() (T, error), retryMsg string) (T, error) { - var ( - returnVal T - err error - ) - - backoff := initialBackoff - -loop: - for i := 0; i < maxRetries; i++ { - select { - case <-ctx.Done(): - break loop - default: - // proceed - } - - returnVal, err = retryFunc() - if err == nil { - return returnVal, nil - } - logrus.Debugf("%s (%s)", retryMsg, backoff) - Sleep(ctx, backoff) - backoff = backOff(backoff) - } - return returnVal, fmt.Errorf("timeout: %w", err) -} - -func backOff(delay time.Duration) time.Duration { - if delay == 0 { - delay = 5 * time.Millisecond - } else { - delay *= 2 - } - if delay > time.Second { - delay = time.Second - } - return delay -} - -func Sleep(ctx context.Context, wait time.Duration) bool { - select { - case <-ctx.Done(): - return false - case <-time.After(wait): - return true - } -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/bess.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/bess.go deleted file mode 100644 index a797731421..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/bess.go +++ /dev/null @@ -1,12 +0,0 @@ -package virtualnetwork - -import ( - "context" - "net" - - "github.com/containers/gvisor-tap-vsock/pkg/types" -) - -func (n *VirtualNetwork) AcceptBess(ctx context.Context, conn net.Conn) error { - return n.networkSwitch.Accept(ctx, conn, types.BessProtocol) -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/conn.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/conn.go deleted file mode 100644 index 0cce39dac9..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/conn.go +++ /dev/null @@ -1,68 +0,0 @@ -package virtualnetwork - -import ( - "context" - "errors" - "net" - "strconv" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/adapters/gonet" - "gvisor.dev/gvisor/pkg/tcpip/network/ipv4" -) - -func (n *VirtualNetwork) Dial(network, addr string) (net.Conn, error) { - ip, port, err := splitIPPort(network, addr) - if err != nil { - return nil, err - } - return gonet.DialTCP(n.stack, tcpip.FullAddress{ - NIC: 1, - Addr: tcpip.AddrFrom4Slice(ip.To4()), - Port: uint16(port), - }, ipv4.ProtocolNumber) -} - -func (n *VirtualNetwork) DialContextTCP(ctx context.Context, addr string) (net.Conn, error) { - ip, port, err := splitIPPort("tcp", addr) - if err != nil { - return nil, err - } - return gonet.DialContextTCP(ctx, n.stack, - tcpip.FullAddress{ - NIC: 1, - Addr: tcpip.AddrFrom4Slice(ip.To4()), - Port: port, - }, ipv4.ProtocolNumber) -} - -func (n *VirtualNetwork) Listen(network, addr string) (net.Listener, error) { - ip, port, err := splitIPPort(network, addr) - if err != nil { - return nil, err - } - return gonet.ListenTCP(n.stack, tcpip.FullAddress{ - NIC: 1, - Addr: tcpip.AddrFrom4Slice(ip.To4()), - Port: port, - }, ipv4.ProtocolNumber) -} - -func splitIPPort(network string, addr string) (net.IP, uint16, error) { - if network != "tcp" { - return nil, 0, errors.New("only tcp is supported") - } - host, portString, err := net.SplitHostPort(addr) - if err != nil { - return nil, 0, err - } - port, err := strconv.ParseUint(portString, 10, 16) - if err != nil { - return nil, 0, err - } - ip := net.ParseIP(host) - if ip == nil { - return nil, 0, errors.New("invalid address, must be an IP") - } - return ip, uint16(port), nil -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/mux.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/mux.go deleted file mode 100644 index 71b399d51f..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/mux.go +++ /dev/null @@ -1,106 +0,0 @@ -package virtualnetwork - -import ( - "context" - "encoding/json" - "net" - "net/http" - "strconv" - - "github.com/containers/gvisor-tap-vsock/pkg/types" - "github.com/inetaf/tcpproxy" - log "github.com/sirupsen/logrus" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/adapters/gonet" - "gvisor.dev/gvisor/pkg/tcpip/network/ipv4" -) - -func (n *VirtualNetwork) ServicesMux() *http.ServeMux { - mux := http.NewServeMux() - mux.Handle("/services/", http.StripPrefix("/services", n.servicesMux)) - mux.HandleFunc("/stats", func(w http.ResponseWriter, _ *http.Request) { - _ = json.NewEncoder(w).Encode(statsAsJSON(n.networkSwitch.Sent, n.networkSwitch.Received, n.stack.Stats())) - }) - mux.HandleFunc("/cam", func(w http.ResponseWriter, _ *http.Request) { - _ = json.NewEncoder(w).Encode(n.networkSwitch.CAM()) - }) - mux.HandleFunc("/leases", func(w http.ResponseWriter, _ *http.Request) { - _ = json.NewEncoder(w).Encode(n.ipPool.Leases()) - }) - mux.HandleFunc("/tunnel", func(w http.ResponseWriter, r *http.Request) { - ip := r.URL.Query().Get("ip") - if ip == "" { - http.Error(w, "ip is mandatory", http.StatusInternalServerError) - return - } - port, err := strconv.ParseUint(r.URL.Query().Get("port"), 10, 16) - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - port16 := uint16(port) - - hj, ok := w.(http.Hijacker) - if !ok { - http.Error(w, "webserver doesn't support hijacking", http.StatusInternalServerError) - return - } - - conn, bufrw, err := hj.Hijack() - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - defer conn.Close() - - if err := bufrw.Flush(); err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - - if _, err := conn.Write([]byte(`OK`)); err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - - remote := tcpproxy.DialProxy{ - DialContext: func(ctx context.Context, _, _ string) (net.Conn, error) { - return gonet.DialContextTCP(ctx, n.stack, tcpip.FullAddress{ - NIC: 1, - Addr: tcpip.AddrFrom4Slice(net.ParseIP(ip).To4()), - Port: port16, - }, ipv4.ProtocolNumber) - }, - OnDialError: func(_ net.Conn, dstDialErr error) { - log.Errorf("cannot dial: %v", dstDialErr) - }, - } - remote.HandleConn(conn) - }) - return mux -} - -func (n *VirtualNetwork) Mux() *http.ServeMux { - mux := n.ServicesMux() - mux.HandleFunc(types.ConnectPath, func(w http.ResponseWriter, _ *http.Request) { - hj, ok := w.(http.Hijacker) - if !ok { - http.Error(w, "webserver doesn't support hijacking", http.StatusInternalServerError) - return - } - conn, bufrw, err := hj.Hijack() - if err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - defer conn.Close() - - if err := bufrw.Flush(); err != nil { - http.Error(w, err.Error(), http.StatusInternalServerError) - return - } - - _ = n.networkSwitch.Accept(context.Background(), conn, n.configuration.Protocol) - }) - return mux -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/qemu.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/qemu.go deleted file mode 100644 index 20fbfede8d..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/qemu.go +++ /dev/null @@ -1,12 +0,0 @@ -package virtualnetwork - -import ( - "context" - "net" - - "github.com/containers/gvisor-tap-vsock/pkg/types" -) - -func (n *VirtualNetwork) AcceptQemu(ctx context.Context, conn net.Conn) error { - return n.networkSwitch.Accept(ctx, conn, types.QemuProtocol) -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/services.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/services.go deleted file mode 100644 index 57c5dafab3..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/services.go +++ /dev/null @@ -1,123 +0,0 @@ -package virtualnetwork - -import ( - "net" - "net/http" - "strings" - "sync" - - "github.com/containers/gvisor-tap-vsock/pkg/services/dhcp" - "github.com/containers/gvisor-tap-vsock/pkg/services/dns" - "github.com/containers/gvisor-tap-vsock/pkg/services/forwarder" - "github.com/containers/gvisor-tap-vsock/pkg/tap" - "github.com/containers/gvisor-tap-vsock/pkg/types" - log "github.com/sirupsen/logrus" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/adapters/gonet" - "gvisor.dev/gvisor/pkg/tcpip/network/ipv4" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport/tcp" - "gvisor.dev/gvisor/pkg/tcpip/transport/udp" -) - -func addServices(configuration *types.Configuration, s *stack.Stack, ipPool *tap.IPPool) (http.Handler, error) { - var natLock sync.Mutex - translation := parseNATTable(configuration) - - tcpForwarder := forwarder.TCP(s, translation, &natLock, configuration.Ec2MetadataAccess) - s.SetTransportProtocolHandler(tcp.ProtocolNumber, tcpForwarder.HandlePacket) - udpForwarder := forwarder.UDP(s, translation, &natLock, configuration.Ec2MetadataAccess) - s.SetTransportProtocolHandler(udp.ProtocolNumber, udpForwarder.HandlePacket) - - dnsMux, err := dnsServer(configuration, s) - if err != nil { - return nil, err - } - - dhcpMux, err := dhcpServer(configuration, s, ipPool) - if err != nil { - return nil, err - } - - forwarderMux, err := forwardHostVM(configuration, s) - if err != nil { - return nil, err - } - mux := http.NewServeMux() - mux.Handle("/forwarder/", http.StripPrefix("/forwarder", forwarderMux)) - mux.Handle("/dhcp/", http.StripPrefix("/dhcp", dhcpMux)) - mux.Handle("/dns/", http.StripPrefix("/dns", dnsMux)) - return mux, nil -} - -func parseNATTable(configuration *types.Configuration) map[tcpip.Address]tcpip.Address { - translation := make(map[tcpip.Address]tcpip.Address) - for source, destination := range configuration.NAT { - translation[tcpip.AddrFrom4Slice(net.ParseIP(source).To4())] = tcpip.AddrFrom4Slice(net.ParseIP(destination).To4()) - } - return translation -} - -func dnsServer(configuration *types.Configuration, s *stack.Stack) (http.Handler, error) { - udpConn, err := gonet.DialUDP(s, &tcpip.FullAddress{ - NIC: 1, - Addr: tcpip.AddrFrom4Slice(net.ParseIP(configuration.GatewayIP).To4()), - Port: uint16(53), - }, nil, ipv4.ProtocolNumber) - if err != nil { - return nil, err - } - - tcpLn, err := gonet.ListenTCP(s, tcpip.FullAddress{ - NIC: 1, - Addr: tcpip.AddrFrom4Slice(net.ParseIP(configuration.GatewayIP).To4()), - Port: uint16(53), - }, ipv4.ProtocolNumber) - if err != nil { - return nil, err - } - - server, err := dns.New(udpConn, tcpLn, configuration.DNS) - if err != nil { - return nil, err - } - - go func() { - if err := server.Serve(); err != nil { - log.Error(err) - } - }() - go func() { - if err := server.ServeTCP(); err != nil { - log.Error(err) - } - }() - return server.Mux(), nil -} - -func dhcpServer(configuration *types.Configuration, s *stack.Stack, ipPool *tap.IPPool) (http.Handler, error) { - server, err := dhcp.New(configuration, s, ipPool) - if err != nil { - return nil, err - } - go func() { - log.Error(server.Serve()) - }() - return server.Mux(), nil -} - -func forwardHostVM(configuration *types.Configuration, s *stack.Stack) (http.Handler, error) { - fw := forwarder.NewPortsForwarder(s) - for local, remote := range configuration.Forwards { - if strings.HasPrefix(local, "udp:") { - if err := fw.Expose(types.UDP, strings.TrimPrefix(local, "udp:"), remote); err != nil { - return nil, err - } - } else { - if err := fw.Expose(types.TCP, local, remote); err != nil { - return nil, err - } - } - } - return fw.Mux(), nil -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/stats.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/stats.go deleted file mode 100644 index db6768985b..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/stats.go +++ /dev/null @@ -1,31 +0,0 @@ -package virtualnetwork - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -func iterateFields(ret map[string]interface{}, valueOf reflect.Value) { - for i := 0; i < valueOf.NumField(); i++ { - field := valueOf.Field(i) - fieldName := valueOf.Type().Field(i).Name - if field.Kind() == reflect.Struct { - m := make(map[string]interface{}) - ret[fieldName] = m - iterateFields(m, field) - continue - } - if counter, ok := field.Interface().(*tcpip.StatCounter); ok { - ret[fieldName] = counter.Value() - } - } -} - -func statsAsJSON(sent, received uint64, stats tcpip.Stats) map[string]interface{} { - root := make(map[string]interface{}) - iterateFields(root, reflect.ValueOf(stats)) - root["BytesSent"] = sent - root["BytesReceived"] = received - return root -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/stdio.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/stdio.go deleted file mode 100644 index cf193d5411..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/stdio.go +++ /dev/null @@ -1,12 +0,0 @@ -package virtualnetwork - -import ( - "context" - "net" - - "github.com/containers/gvisor-tap-vsock/pkg/types" -) - -func (n *VirtualNetwork) AcceptStdio(ctx context.Context, conn net.Conn) error { - return n.networkSwitch.Accept(ctx, conn, types.StdioProtocol) -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/vfkit.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/vfkit.go deleted file mode 100644 index 905e200354..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/vfkit.go +++ /dev/null @@ -1,12 +0,0 @@ -package virtualnetwork - -import ( - "context" - "net" - - "github.com/containers/gvisor-tap-vsock/pkg/types" -) - -func (n *VirtualNetwork) AcceptVfkit(ctx context.Context, conn net.Conn) error { - return n.networkSwitch.Accept(ctx, conn, types.VfkitProtocol) -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/virtualnetwork.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/virtualnetwork.go deleted file mode 100644 index c7d32550da..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/virtualnetwork.go +++ /dev/null @@ -1,154 +0,0 @@ -package virtualnetwork - -import ( - "errors" - "fmt" - "math" - "net" - "net/http" - "os" - - "github.com/containers/gvisor-tap-vsock/pkg/notification" - "github.com/containers/gvisor-tap-vsock/pkg/tap" - "github.com/containers/gvisor-tap-vsock/pkg/types" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/link/sniffer" - "gvisor.dev/gvisor/pkg/tcpip/network/arp" - "gvisor.dev/gvisor/pkg/tcpip/network/ipv4" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport/icmp" - "gvisor.dev/gvisor/pkg/tcpip/transport/tcp" - "gvisor.dev/gvisor/pkg/tcpip/transport/udp" -) - -type VirtualNetwork struct { - configuration *types.Configuration - stack *stack.Stack - networkSwitch *tap.Switch - servicesMux http.Handler - ipPool *tap.IPPool -} - -func (n *VirtualNetwork) SetNotificationSender(notificationSender *notification.NotificationSender) { - n.networkSwitch.SetNotificationSender(notificationSender) -} - -func New(configuration *types.Configuration) (*VirtualNetwork, error) { - _, subnet, err := net.ParseCIDR(configuration.Subnet) - if err != nil { - return nil, fmt.Errorf("cannot parse subnet cidr: %w", err) - } - - var endpoint stack.LinkEndpoint - - ipPool := tap.NewIPPool(subnet) - ipPool.Reserve(net.ParseIP(configuration.GatewayIP), configuration.GatewayMacAddress) - for ip, mac := range configuration.DHCPStaticLeases { - ipPool.Reserve(net.ParseIP(ip), mac) - } - - mtu := configuration.MTU - if mtu < 0 || mtu > math.MaxInt32 { - return nil, errors.New("mtu is out of range") - } - tapEndpoint, err := tap.NewLinkEndpoint(configuration.Debug, uint32(mtu), configuration.GatewayMacAddress, configuration.GatewayIP, configuration.GatewayVirtualIPs) - if err != nil { - return nil, fmt.Errorf("cannot create tap endpoint: %w", err) - } - networkSwitch := tap.NewSwitch(configuration.Debug) - tapEndpoint.Connect(networkSwitch) - networkSwitch.Connect(tapEndpoint) - - if configuration.CaptureFile != "" { - _ = os.Remove(configuration.CaptureFile) - fd, err := os.Create(configuration.CaptureFile) - if err != nil { - return nil, fmt.Errorf("cannot create capture file: %w", err) - } - endpoint, err = sniffer.NewWithWriter(tapEndpoint, fd, math.MaxUint32) - if err != nil { - return nil, fmt.Errorf("cannot create sniffer: %w", err) - } - } else { - endpoint = tapEndpoint - } - - stack, err := createStack(configuration, endpoint) - if err != nil { - return nil, fmt.Errorf("cannot create network stack: %w", err) - } - - mux, err := addServices(configuration, stack, ipPool) - if err != nil { - return nil, fmt.Errorf("cannot add network services: %w", err) - } - - return &VirtualNetwork{ - configuration: configuration, - stack: stack, - networkSwitch: networkSwitch, - servicesMux: mux, - ipPool: ipPool, - }, nil -} - -func (n *VirtualNetwork) BytesSent() uint64 { - if n.networkSwitch == nil { - return 0 - } - return n.networkSwitch.Sent -} - -func (n *VirtualNetwork) BytesReceived() uint64 { - if n.networkSwitch == nil { - return 0 - } - return n.networkSwitch.Received -} - -func createStack(configuration *types.Configuration, endpoint stack.LinkEndpoint) (*stack.Stack, error) { - s := stack.New(stack.Options{ - NetworkProtocols: []stack.NetworkProtocolFactory{ - ipv4.NewProtocol, - arp.NewProtocol, - }, - TransportProtocols: []stack.TransportProtocolFactory{ - tcp.NewProtocol, - udp.NewProtocol, - icmp.NewProtocol4, - }, - }) - - if err := s.CreateNIC(1, endpoint); err != nil { - return nil, errors.New(err.String()) - } - - if err := s.AddProtocolAddress(1, tcpip.ProtocolAddress{ - Protocol: ipv4.ProtocolNumber, - AddressWithPrefix: tcpip.AddrFrom4Slice(net.ParseIP(configuration.GatewayIP).To4()).WithPrefix(), - }, stack.AddressProperties{}); err != nil { - return nil, errors.New(err.String()) - } - - s.SetSpoofing(1, true) - s.SetPromiscuousMode(1, true) - - _, parsedSubnet, err := net.ParseCIDR(configuration.Subnet) - if err != nil { - return nil, fmt.Errorf("cannot parse cidr: %w", err) - } - - subnet, err := tcpip.NewSubnet(tcpip.AddrFromSlice(parsedSubnet.IP), tcpip.MaskFromBytes(parsedSubnet.Mask)) - if err != nil { - return nil, fmt.Errorf("cannot parse subnet: %w", err) - } - s.SetRouteTable([]tcpip.Route{ - { - Destination: subnet, - Gateway: tcpip.Address{}, - NIC: 1, - }, - }) - - return s, nil -} diff --git a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/vpnkit.go b/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/vpnkit.go deleted file mode 100644 index a37ba49ae9..0000000000 --- a/vendor/github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork/vpnkit.go +++ /dev/null @@ -1,88 +0,0 @@ -package virtualnetwork - -import ( - "context" - "crypto/rand" - "encoding/binary" - "fmt" - "io" - "math" - "net" - - "github.com/containers/gvisor-tap-vsock/pkg/types" - log "github.com/sirupsen/logrus" - "gvisor.dev/gvisor/pkg/tcpip/header" -) - -func (n *VirtualNetwork) AcceptVpnKit(conn net.Conn) error { - if err := vpnkitHandshake(conn, n.configuration); err != nil { - log.Error(err) - } - _ = n.networkSwitch.Accept(context.Background(), conn, types.HyperKitProtocol) - return nil -} - -func vpnkitHandshake(conn net.Conn, configuration *types.Configuration) error { - // https://github.com/moby/hyperkit/blob/2f061e447e1435cdf1b9eda364cea6414f2c606b/src/lib/pci_virtio_net_vpnkit.c#L91 - msgInit := make([]byte, 49) - if _, err := io.ReadFull(conn, msgInit); err != nil { - return err - } - if _, err := conn.Write(msgInit); err != nil { - return err - } - - // https://github.com/moby/hyperkit/blob/2f061e447e1435cdf1b9eda364cea6414f2c606b/src/lib/pci_virtio_net_vpnkit.c#L123 - msgCommand := make([]byte, 41) - if _, err := io.ReadFull(conn, msgCommand); err != nil { - return err - } - vpnkitUUID := string(msgCommand[1:37]) - log.Debugf("UUID sent by Hyperkit: %s", vpnkitUUID) - - // https://github.com/moby/hyperkit/blob/2f061e447e1435cdf1b9eda364cea6414f2c606b/src/lib/pci_virtio_net_vpnkit.c#L131 - resp := make([]byte, 258) - resp[0] = 0x01 - - if configuration.MTU < 0 || configuration.MTU > math.MaxUint16 { - return fmt.Errorf("invalid MTU: %d", configuration.MTU) - } - mtu := uint16(configuration.MTU) - binary.LittleEndian.PutUint16(resp[1:3], mtu) - binary.LittleEndian.PutUint16(resp[3:5], mtu+header.EthernetMinimumSize) - - mac, err := macAddr(configuration, vpnkitUUID) - if err != nil { - return err - } - log.Debugf("Sending mac address: %s", mac.String()) - - copy(resp[5:11], mac) - - _, err = conn.Write(resp) - return err -} - -func macAddr(configuration *types.Configuration, vpnkitUUID string) (net.HardwareAddr, error) { - macStr, ok := configuration.VpnKitUUIDMacAddresses[vpnkitUUID] - if !ok { - return randomMac() - } - return net.ParseMAC(macStr) -} - -func randomMac() (net.HardwareAddr, error) { - buf := make([]byte, 6) - _, err := rand.Read(buf) - if err != nil { - return nil, err - } - - // Set the local bit - buf[0] |= 2 - - // Set the single address bit - buf[0] &= ^byte(1) - - return buf, nil -} diff --git a/vendor/github.com/crc-org/machine/drivers/libvirt/driver_linux.go b/vendor/github.com/crc-org/machine/drivers/libvirt/driver_linux.go deleted file mode 100644 index 5ad333fbb2..0000000000 --- a/vendor/github.com/crc-org/machine/drivers/libvirt/driver_linux.go +++ /dev/null @@ -1,38 +0,0 @@ -package libvirt - -import ( - "github.com/crc-org/machine/libmachine/drivers" -) - -type Driver struct { - *drivers.VMDriver - - // Driver specific configuration - Network string - CacheMode string - IOMode string - VSock bool - StoragePool string -} - -const ( - defaultMemory = 8192 - defaultCPU = 4 - defaultCacheMode = "default" - defaultIOMode = "threads" -) - -func NewDriver(hostName, storePath string) *Driver { - return &Driver{ - VMDriver: &drivers.VMDriver{ - BaseDriver: &drivers.BaseDriver{ - MachineName: hostName, - StorePath: storePath, - }, - Memory: defaultMemory, - CPU: defaultCPU, - }, - CacheMode: defaultCacheMode, - IOMode: defaultIOMode, - } -} diff --git a/vendor/github.com/google/btree/LICENSE b/vendor/github.com/google/btree/LICENSE deleted file mode 100644 index d645695673..0000000000 --- a/vendor/github.com/google/btree/LICENSE +++ /dev/null @@ -1,202 +0,0 @@ - - Apache License - Version 2.0, January 2004 - http://www.apache.org/licenses/ - - TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION - - 1. Definitions. - - "License" shall mean the terms and conditions for use, reproduction, - and distribution as defined by Sections 1 through 9 of this document. - - "Licensor" shall mean the copyright owner or entity authorized by - the copyright owner that is granting the License. - - "Legal Entity" shall mean the union of the acting entity and all - other entities that control, are controlled by, or are under common - control with that entity. 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For the purposes - of this License, Derivative Works shall not include works that remain - separable from, or merely link (or bind by name) to the interfaces of, - the Work and Derivative Works thereof. - - "Contribution" shall mean any work of authorship, including - the original version of the Work and any modifications or additions - to that Work or Derivative Works thereof, that is intentionally - submitted to Licensor for inclusion in the Work by the copyright owner - or by an individual or Legal Entity authorized to submit on behalf of - the copyright owner. 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If You - institute patent litigation against any entity (including a - cross-claim or counterclaim in a lawsuit) alleging that the Work - or a Contribution incorporated within the Work constitutes direct - or contributory patent infringement, then any patent licenses - granted to You under this License for that Work shall terminate - as of the date such litigation is filed. - - 4. Redistribution. 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The contents - of the NOTICE file are for informational purposes only and - do not modify the License. You may add Your own attribution - notices within Derivative Works that You distribute, alongside - or as an addendum to the NOTICE text from the Work, provided - that such additional attribution notices cannot be construed - as modifying the License. - - You may add Your own copyright statement to Your modifications and - may provide additional or different license terms and conditions - for use, reproduction, or distribution of Your modifications, or - for any such Derivative Works as a whole, provided Your use, - reproduction, and distribution of the Work otherwise complies with - the conditions stated in this License. - - 5. Submission of Contributions. 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In no event and under no legal theory, - whether in tort (including negligence), contract, or otherwise, - unless required by applicable law (such as deliberate and grossly - negligent acts) or agreed to in writing, shall any Contributor be - liable to You for damages, including any direct, indirect, special, - incidental, or consequential damages of any character arising as a - result of this License or out of the use or inability to use the - Work (including but not limited to damages for loss of goodwill, - work stoppage, computer failure or malfunction, or any and all - other commercial damages or losses), even if such Contributor - has been advised of the possibility of such damages. - - 9. Accepting Warranty or Additional Liability. While redistributing - the Work or Derivative Works thereof, You may choose to offer, - and charge a fee for, acceptance of support, warranty, indemnity, - or other liability obligations and/or rights consistent with this - License. However, in accepting such obligations, You may act only - on Your own behalf and on Your sole responsibility, not on behalf - of any other Contributor, and only if You agree to indemnify, - defend, and hold each Contributor harmless for any liability - incurred by, or claims asserted against, such Contributor by reason - of your accepting any such warranty or additional liability. - - END OF TERMS AND CONDITIONS - - APPENDIX: How to apply the Apache License to your work. - - To apply the Apache License to your work, attach the following - boilerplate notice, with the fields enclosed by brackets "[]" - replaced with your own identifying information. (Don't include - the brackets!) The text should be enclosed in the appropriate - comment syntax for the file format. We also recommend that a - file or class name and description of purpose be included on the - same "printed page" as the copyright notice for easier - identification within third-party archives. - - Copyright [yyyy] [name of copyright owner] - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. diff --git a/vendor/github.com/google/btree/README.md b/vendor/github.com/google/btree/README.md deleted file mode 100644 index eab5dbf7ba..0000000000 --- a/vendor/github.com/google/btree/README.md +++ /dev/null @@ -1,10 +0,0 @@ -# BTree implementation for Go - -This package provides an in-memory B-Tree implementation for Go, useful as -an ordered, mutable data structure. - -The API is based off of the wonderful -http://godoc.org/github.com/petar/GoLLRB/llrb, and is meant to allow btree to -act as a drop-in replacement for gollrb trees. - -See http://godoc.org/github.com/google/btree for documentation. diff --git a/vendor/github.com/google/btree/btree.go b/vendor/github.com/google/btree/btree.go deleted file mode 100644 index 6f5184fef7..0000000000 --- a/vendor/github.com/google/btree/btree.go +++ /dev/null @@ -1,893 +0,0 @@ -// Copyright 2014 Google Inc. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build !go1.18 -// +build !go1.18 - -// Package btree implements in-memory B-Trees of arbitrary degree. -// -// btree implements an in-memory B-Tree for use as an ordered data structure. -// It is not meant for persistent storage solutions. -// -// It has a flatter structure than an equivalent red-black or other binary tree, -// which in some cases yields better memory usage and/or performance. -// See some discussion on the matter here: -// http://google-opensource.blogspot.com/2013/01/c-containers-that-save-memory-and-time.html -// Note, though, that this project is in no way related to the C++ B-Tree -// implementation written about there. -// -// Within this tree, each node contains a slice of items and a (possibly nil) -// slice of children. For basic numeric values or raw structs, this can cause -// efficiency differences when compared to equivalent C++ template code that -// stores values in arrays within the node: -// * Due to the overhead of storing values as interfaces (each -// value needs to be stored as the value itself, then 2 words for the -// interface pointing to that value and its type), resulting in higher -// memory use. -// * Since interfaces can point to values anywhere in memory, values are -// most likely not stored in contiguous blocks, resulting in a higher -// number of cache misses. -// These issues don't tend to matter, though, when working with strings or other -// heap-allocated structures, since C++-equivalent structures also must store -// pointers and also distribute their values across the heap. -// -// This implementation is designed to be a drop-in replacement to gollrb.LLRB -// trees, (http://github.com/petar/gollrb), an excellent and probably the most -// widely used ordered tree implementation in the Go ecosystem currently. -// Its functions, therefore, exactly mirror those of -// llrb.LLRB where possible. Unlike gollrb, though, we currently don't -// support storing multiple equivalent values. -package btree - -import ( - "fmt" - "io" - "sort" - "strings" - "sync" -) - -// Item represents a single object in the tree. -type Item interface { - // Less tests whether the current item is less than the given argument. - // - // This must provide a strict weak ordering. - // If !a.Less(b) && !b.Less(a), we treat this to mean a == b (i.e. we can only - // hold one of either a or b in the tree). - Less(than Item) bool -} - -const ( - DefaultFreeListSize = 32 -) - -var ( - nilItems = make(items, 16) - nilChildren = make(children, 16) -) - -// FreeList represents a free list of btree nodes. By default each -// BTree has its own FreeList, but multiple BTrees can share the same -// FreeList. -// Two Btrees using the same freelist are safe for concurrent write access. -type FreeList struct { - mu sync.Mutex - freelist []*node -} - -// NewFreeList creates a new free list. -// size is the maximum size of the returned free list. -func NewFreeList(size int) *FreeList { - return &FreeList{freelist: make([]*node, 0, size)} -} - -func (f *FreeList) newNode() (n *node) { - f.mu.Lock() - index := len(f.freelist) - 1 - if index < 0 { - f.mu.Unlock() - return new(node) - } - n = f.freelist[index] - f.freelist[index] = nil - f.freelist = f.freelist[:index] - f.mu.Unlock() - return -} - -// freeNode adds the given node to the list, returning true if it was added -// and false if it was discarded. -func (f *FreeList) freeNode(n *node) (out bool) { - f.mu.Lock() - if len(f.freelist) < cap(f.freelist) { - f.freelist = append(f.freelist, n) - out = true - } - f.mu.Unlock() - return -} - -// ItemIterator allows callers of Ascend* to iterate in-order over portions of -// the tree. When this function returns false, iteration will stop and the -// associated Ascend* function will immediately return. -type ItemIterator func(i Item) bool - -// New creates a new B-Tree with the given degree. -// -// New(2), for example, will create a 2-3-4 tree (each node contains 1-3 items -// and 2-4 children). -func New(degree int) *BTree { - return NewWithFreeList(degree, NewFreeList(DefaultFreeListSize)) -} - -// NewWithFreeList creates a new B-Tree that uses the given node free list. -func NewWithFreeList(degree int, f *FreeList) *BTree { - if degree <= 1 { - panic("bad degree") - } - return &BTree{ - degree: degree, - cow: ©OnWriteContext{freelist: f}, - } -} - -// items stores items in a node. -type items []Item - -// insertAt inserts a value into the given index, pushing all subsequent values -// forward. -func (s *items) insertAt(index int, item Item) { - *s = append(*s, nil) - if index < len(*s) { - copy((*s)[index+1:], (*s)[index:]) - } - (*s)[index] = item -} - -// removeAt removes a value at a given index, pulling all subsequent values -// back. -func (s *items) removeAt(index int) Item { - item := (*s)[index] - copy((*s)[index:], (*s)[index+1:]) - (*s)[len(*s)-1] = nil - *s = (*s)[:len(*s)-1] - return item -} - -// pop removes and returns the last element in the list. -func (s *items) pop() (out Item) { - index := len(*s) - 1 - out = (*s)[index] - (*s)[index] = nil - *s = (*s)[:index] - return -} - -// truncate truncates this instance at index so that it contains only the -// first index items. index must be less than or equal to length. -func (s *items) truncate(index int) { - var toClear items - *s, toClear = (*s)[:index], (*s)[index:] - for len(toClear) > 0 { - toClear = toClear[copy(toClear, nilItems):] - } -} - -// find returns the index where the given item should be inserted into this -// list. 'found' is true if the item already exists in the list at the given -// index. -func (s items) find(item Item) (index int, found bool) { - i := sort.Search(len(s), func(i int) bool { - return item.Less(s[i]) - }) - if i > 0 && !s[i-1].Less(item) { - return i - 1, true - } - return i, false -} - -// children stores child nodes in a node. -type children []*node - -// insertAt inserts a value into the given index, pushing all subsequent values -// forward. -func (s *children) insertAt(index int, n *node) { - *s = append(*s, nil) - if index < len(*s) { - copy((*s)[index+1:], (*s)[index:]) - } - (*s)[index] = n -} - -// removeAt removes a value at a given index, pulling all subsequent values -// back. -func (s *children) removeAt(index int) *node { - n := (*s)[index] - copy((*s)[index:], (*s)[index+1:]) - (*s)[len(*s)-1] = nil - *s = (*s)[:len(*s)-1] - return n -} - -// pop removes and returns the last element in the list. -func (s *children) pop() (out *node) { - index := len(*s) - 1 - out = (*s)[index] - (*s)[index] = nil - *s = (*s)[:index] - return -} - -// truncate truncates this instance at index so that it contains only the -// first index children. index must be less than or equal to length. -func (s *children) truncate(index int) { - var toClear children - *s, toClear = (*s)[:index], (*s)[index:] - for len(toClear) > 0 { - toClear = toClear[copy(toClear, nilChildren):] - } -} - -// node is an internal node in a tree. -// -// It must at all times maintain the invariant that either -// * len(children) == 0, len(items) unconstrained -// * len(children) == len(items) + 1 -type node struct { - items items - children children - cow *copyOnWriteContext -} - -func (n *node) mutableFor(cow *copyOnWriteContext) *node { - if n.cow == cow { - return n - } - out := cow.newNode() - if cap(out.items) >= len(n.items) { - out.items = out.items[:len(n.items)] - } else { - out.items = make(items, len(n.items), cap(n.items)) - } - copy(out.items, n.items) - // Copy children - if cap(out.children) >= len(n.children) { - out.children = out.children[:len(n.children)] - } else { - out.children = make(children, len(n.children), cap(n.children)) - } - copy(out.children, n.children) - return out -} - -func (n *node) mutableChild(i int) *node { - c := n.children[i].mutableFor(n.cow) - n.children[i] = c - return c -} - -// split splits the given node at the given index. The current node shrinks, -// and this function returns the item that existed at that index and a new node -// containing all items/children after it. -func (n *node) split(i int) (Item, *node) { - item := n.items[i] - next := n.cow.newNode() - next.items = append(next.items, n.items[i+1:]...) - n.items.truncate(i) - if len(n.children) > 0 { - next.children = append(next.children, n.children[i+1:]...) - n.children.truncate(i + 1) - } - return item, next -} - -// maybeSplitChild checks if a child should be split, and if so splits it. -// Returns whether or not a split occurred. -func (n *node) maybeSplitChild(i, maxItems int) bool { - if len(n.children[i].items) < maxItems { - return false - } - first := n.mutableChild(i) - item, second := first.split(maxItems / 2) - n.items.insertAt(i, item) - n.children.insertAt(i+1, second) - return true -} - -// insert inserts an item into the subtree rooted at this node, making sure -// no nodes in the subtree exceed maxItems items. Should an equivalent item be -// be found/replaced by insert, it will be returned. -func (n *node) insert(item Item, maxItems int) Item { - i, found := n.items.find(item) - if found { - out := n.items[i] - n.items[i] = item - return out - } - if len(n.children) == 0 { - n.items.insertAt(i, item) - return nil - } - if n.maybeSplitChild(i, maxItems) { - inTree := n.items[i] - switch { - case item.Less(inTree): - // no change, we want first split node - case inTree.Less(item): - i++ // we want second split node - default: - out := n.items[i] - n.items[i] = item - return out - } - } - return n.mutableChild(i).insert(item, maxItems) -} - -// get finds the given key in the subtree and returns it. -func (n *node) get(key Item) Item { - i, found := n.items.find(key) - if found { - return n.items[i] - } else if len(n.children) > 0 { - return n.children[i].get(key) - } - return nil -} - -// min returns the first item in the subtree. -func min(n *node) Item { - if n == nil { - return nil - } - for len(n.children) > 0 { - n = n.children[0] - } - if len(n.items) == 0 { - return nil - } - return n.items[0] -} - -// max returns the last item in the subtree. -func max(n *node) Item { - if n == nil { - return nil - } - for len(n.children) > 0 { - n = n.children[len(n.children)-1] - } - if len(n.items) == 0 { - return nil - } - return n.items[len(n.items)-1] -} - -// toRemove details what item to remove in a node.remove call. -type toRemove int - -const ( - removeItem toRemove = iota // removes the given item - removeMin // removes smallest item in the subtree - removeMax // removes largest item in the subtree -) - -// remove removes an item from the subtree rooted at this node. -func (n *node) remove(item Item, minItems int, typ toRemove) Item { - var i int - var found bool - switch typ { - case removeMax: - if len(n.children) == 0 { - return n.items.pop() - } - i = len(n.items) - case removeMin: - if len(n.children) == 0 { - return n.items.removeAt(0) - } - i = 0 - case removeItem: - i, found = n.items.find(item) - if len(n.children) == 0 { - if found { - return n.items.removeAt(i) - } - return nil - } - default: - panic("invalid type") - } - // If we get to here, we have children. - if len(n.children[i].items) <= minItems { - return n.growChildAndRemove(i, item, minItems, typ) - } - child := n.mutableChild(i) - // Either we had enough items to begin with, or we've done some - // merging/stealing, because we've got enough now and we're ready to return - // stuff. - if found { - // The item exists at index 'i', and the child we've selected can give us a - // predecessor, since if we've gotten here it's got > minItems items in it. - out := n.items[i] - // We use our special-case 'remove' call with typ=maxItem to pull the - // predecessor of item i (the rightmost leaf of our immediate left child) - // and set it into where we pulled the item from. - n.items[i] = child.remove(nil, minItems, removeMax) - return out - } - // Final recursive call. Once we're here, we know that the item isn't in this - // node and that the child is big enough to remove from. - return child.remove(item, minItems, typ) -} - -// growChildAndRemove grows child 'i' to make sure it's possible to remove an -// item from it while keeping it at minItems, then calls remove to actually -// remove it. -// -// Most documentation says we have to do two sets of special casing: -// 1) item is in this node -// 2) item is in child -// In both cases, we need to handle the two subcases: -// A) node has enough values that it can spare one -// B) node doesn't have enough values -// For the latter, we have to check: -// a) left sibling has node to spare -// b) right sibling has node to spare -// c) we must merge -// To simplify our code here, we handle cases #1 and #2 the same: -// If a node doesn't have enough items, we make sure it does (using a,b,c). -// We then simply redo our remove call, and the second time (regardless of -// whether we're in case 1 or 2), we'll have enough items and can guarantee -// that we hit case A. -func (n *node) growChildAndRemove(i int, item Item, minItems int, typ toRemove) Item { - if i > 0 && len(n.children[i-1].items) > minItems { - // Steal from left child - child := n.mutableChild(i) - stealFrom := n.mutableChild(i - 1) - stolenItem := stealFrom.items.pop() - child.items.insertAt(0, n.items[i-1]) - n.items[i-1] = stolenItem - if len(stealFrom.children) > 0 { - child.children.insertAt(0, stealFrom.children.pop()) - } - } else if i < len(n.items) && len(n.children[i+1].items) > minItems { - // steal from right child - child := n.mutableChild(i) - stealFrom := n.mutableChild(i + 1) - stolenItem := stealFrom.items.removeAt(0) - child.items = append(child.items, n.items[i]) - n.items[i] = stolenItem - if len(stealFrom.children) > 0 { - child.children = append(child.children, stealFrom.children.removeAt(0)) - } - } else { - if i >= len(n.items) { - i-- - } - child := n.mutableChild(i) - // merge with right child - mergeItem := n.items.removeAt(i) - mergeChild := n.children.removeAt(i + 1).mutableFor(n.cow) - child.items = append(child.items, mergeItem) - child.items = append(child.items, mergeChild.items...) - child.children = append(child.children, mergeChild.children...) - n.cow.freeNode(mergeChild) - } - return n.remove(item, minItems, typ) -} - -type direction int - -const ( - descend = direction(-1) - ascend = direction(+1) -) - -// iterate provides a simple method for iterating over elements in the tree. -// -// When ascending, the 'start' should be less than 'stop' and when descending, -// the 'start' should be greater than 'stop'. Setting 'includeStart' to true -// will force the iterator to include the first item when it equals 'start', -// thus creating a "greaterOrEqual" or "lessThanEqual" rather than just a -// "greaterThan" or "lessThan" queries. -func (n *node) iterate(dir direction, start, stop Item, includeStart bool, hit bool, iter ItemIterator) (bool, bool) { - var ok, found bool - var index int - switch dir { - case ascend: - if start != nil { - index, _ = n.items.find(start) - } - for i := index; i < len(n.items); i++ { - if len(n.children) > 0 { - if hit, ok = n.children[i].iterate(dir, start, stop, includeStart, hit, iter); !ok { - return hit, false - } - } - if !includeStart && !hit && start != nil && !start.Less(n.items[i]) { - hit = true - continue - } - hit = true - if stop != nil && !n.items[i].Less(stop) { - return hit, false - } - if !iter(n.items[i]) { - return hit, false - } - } - if len(n.children) > 0 { - if hit, ok = n.children[len(n.children)-1].iterate(dir, start, stop, includeStart, hit, iter); !ok { - return hit, false - } - } - case descend: - if start != nil { - index, found = n.items.find(start) - if !found { - index = index - 1 - } - } else { - index = len(n.items) - 1 - } - for i := index; i >= 0; i-- { - if start != nil && !n.items[i].Less(start) { - if !includeStart || hit || start.Less(n.items[i]) { - continue - } - } - if len(n.children) > 0 { - if hit, ok = n.children[i+1].iterate(dir, start, stop, includeStart, hit, iter); !ok { - return hit, false - } - } - if stop != nil && !stop.Less(n.items[i]) { - return hit, false // continue - } - hit = true - if !iter(n.items[i]) { - return hit, false - } - } - if len(n.children) > 0 { - if hit, ok = n.children[0].iterate(dir, start, stop, includeStart, hit, iter); !ok { - return hit, false - } - } - } - return hit, true -} - -// Used for testing/debugging purposes. -func (n *node) print(w io.Writer, level int) { - fmt.Fprintf(w, "%sNODE:%v\n", strings.Repeat(" ", level), n.items) - for _, c := range n.children { - c.print(w, level+1) - } -} - -// BTree is an implementation of a B-Tree. -// -// BTree stores Item instances in an ordered structure, allowing easy insertion, -// removal, and iteration. -// -// Write operations are not safe for concurrent mutation by multiple -// goroutines, but Read operations are. -type BTree struct { - degree int - length int - root *node - cow *copyOnWriteContext -} - -// copyOnWriteContext pointers determine node ownership... a tree with a write -// context equivalent to a node's write context is allowed to modify that node. -// A tree whose write context does not match a node's is not allowed to modify -// it, and must create a new, writable copy (IE: it's a Clone). -// -// When doing any write operation, we maintain the invariant that the current -// node's context is equal to the context of the tree that requested the write. -// We do this by, before we descend into any node, creating a copy with the -// correct context if the contexts don't match. -// -// Since the node we're currently visiting on any write has the requesting -// tree's context, that node is modifiable in place. Children of that node may -// not share context, but before we descend into them, we'll make a mutable -// copy. -type copyOnWriteContext struct { - freelist *FreeList -} - -// Clone clones the btree, lazily. Clone should not be called concurrently, -// but the original tree (t) and the new tree (t2) can be used concurrently -// once the Clone call completes. -// -// The internal tree structure of b is marked read-only and shared between t and -// t2. Writes to both t and t2 use copy-on-write logic, creating new nodes -// whenever one of b's original nodes would have been modified. Read operations -// should have no performance degredation. Write operations for both t and t2 -// will initially experience minor slow-downs caused by additional allocs and -// copies due to the aforementioned copy-on-write logic, but should converge to -// the original performance characteristics of the original tree. -func (t *BTree) Clone() (t2 *BTree) { - // Create two entirely new copy-on-write contexts. - // This operation effectively creates three trees: - // the original, shared nodes (old b.cow) - // the new b.cow nodes - // the new out.cow nodes - cow1, cow2 := *t.cow, *t.cow - out := *t - t.cow = &cow1 - out.cow = &cow2 - return &out -} - -// maxItems returns the max number of items to allow per node. -func (t *BTree) maxItems() int { - return t.degree*2 - 1 -} - -// minItems returns the min number of items to allow per node (ignored for the -// root node). -func (t *BTree) minItems() int { - return t.degree - 1 -} - -func (c *copyOnWriteContext) newNode() (n *node) { - n = c.freelist.newNode() - n.cow = c - return -} - -type freeType int - -const ( - ftFreelistFull freeType = iota // node was freed (available for GC, not stored in freelist) - ftStored // node was stored in the freelist for later use - ftNotOwned // node was ignored by COW, since it's owned by another one -) - -// freeNode frees a node within a given COW context, if it's owned by that -// context. It returns what happened to the node (see freeType const -// documentation). -func (c *copyOnWriteContext) freeNode(n *node) freeType { - if n.cow == c { - // clear to allow GC - n.items.truncate(0) - n.children.truncate(0) - n.cow = nil - if c.freelist.freeNode(n) { - return ftStored - } else { - return ftFreelistFull - } - } else { - return ftNotOwned - } -} - -// ReplaceOrInsert adds the given item to the tree. If an item in the tree -// already equals the given one, it is removed from the tree and returned. -// Otherwise, nil is returned. -// -// nil cannot be added to the tree (will panic). -func (t *BTree) ReplaceOrInsert(item Item) Item { - if item == nil { - panic("nil item being added to BTree") - } - if t.root == nil { - t.root = t.cow.newNode() - t.root.items = append(t.root.items, item) - t.length++ - return nil - } else { - t.root = t.root.mutableFor(t.cow) - if len(t.root.items) >= t.maxItems() { - item2, second := t.root.split(t.maxItems() / 2) - oldroot := t.root - t.root = t.cow.newNode() - t.root.items = append(t.root.items, item2) - t.root.children = append(t.root.children, oldroot, second) - } - } - out := t.root.insert(item, t.maxItems()) - if out == nil { - t.length++ - } - return out -} - -// Delete removes an item equal to the passed in item from the tree, returning -// it. If no such item exists, returns nil. -func (t *BTree) Delete(item Item) Item { - return t.deleteItem(item, removeItem) -} - -// DeleteMin removes the smallest item in the tree and returns it. -// If no such item exists, returns nil. -func (t *BTree) DeleteMin() Item { - return t.deleteItem(nil, removeMin) -} - -// DeleteMax removes the largest item in the tree and returns it. -// If no such item exists, returns nil. -func (t *BTree) DeleteMax() Item { - return t.deleteItem(nil, removeMax) -} - -func (t *BTree) deleteItem(item Item, typ toRemove) Item { - if t.root == nil || len(t.root.items) == 0 { - return nil - } - t.root = t.root.mutableFor(t.cow) - out := t.root.remove(item, t.minItems(), typ) - if len(t.root.items) == 0 && len(t.root.children) > 0 { - oldroot := t.root - t.root = t.root.children[0] - t.cow.freeNode(oldroot) - } - if out != nil { - t.length-- - } - return out -} - -// AscendRange calls the iterator for every value in the tree within the range -// [greaterOrEqual, lessThan), until iterator returns false. -func (t *BTree) AscendRange(greaterOrEqual, lessThan Item, iterator ItemIterator) { - if t.root == nil { - return - } - t.root.iterate(ascend, greaterOrEqual, lessThan, true, false, iterator) -} - -// AscendLessThan calls the iterator for every value in the tree within the range -// [first, pivot), until iterator returns false. -func (t *BTree) AscendLessThan(pivot Item, iterator ItemIterator) { - if t.root == nil { - return - } - t.root.iterate(ascend, nil, pivot, false, false, iterator) -} - -// AscendGreaterOrEqual calls the iterator for every value in the tree within -// the range [pivot, last], until iterator returns false. -func (t *BTree) AscendGreaterOrEqual(pivot Item, iterator ItemIterator) { - if t.root == nil { - return - } - t.root.iterate(ascend, pivot, nil, true, false, iterator) -} - -// Ascend calls the iterator for every value in the tree within the range -// [first, last], until iterator returns false. -func (t *BTree) Ascend(iterator ItemIterator) { - if t.root == nil { - return - } - t.root.iterate(ascend, nil, nil, false, false, iterator) -} - -// DescendRange calls the iterator for every value in the tree within the range -// [lessOrEqual, greaterThan), until iterator returns false. -func (t *BTree) DescendRange(lessOrEqual, greaterThan Item, iterator ItemIterator) { - if t.root == nil { - return - } - t.root.iterate(descend, lessOrEqual, greaterThan, true, false, iterator) -} - -// DescendLessOrEqual calls the iterator for every value in the tree within the range -// [pivot, first], until iterator returns false. -func (t *BTree) DescendLessOrEqual(pivot Item, iterator ItemIterator) { - if t.root == nil { - return - } - t.root.iterate(descend, pivot, nil, true, false, iterator) -} - -// DescendGreaterThan calls the iterator for every value in the tree within -// the range [last, pivot), until iterator returns false. -func (t *BTree) DescendGreaterThan(pivot Item, iterator ItemIterator) { - if t.root == nil { - return - } - t.root.iterate(descend, nil, pivot, false, false, iterator) -} - -// Descend calls the iterator for every value in the tree within the range -// [last, first], until iterator returns false. -func (t *BTree) Descend(iterator ItemIterator) { - if t.root == nil { - return - } - t.root.iterate(descend, nil, nil, false, false, iterator) -} - -// Get looks for the key item in the tree, returning it. It returns nil if -// unable to find that item. -func (t *BTree) Get(key Item) Item { - if t.root == nil { - return nil - } - return t.root.get(key) -} - -// Min returns the smallest item in the tree, or nil if the tree is empty. -func (t *BTree) Min() Item { - return min(t.root) -} - -// Max returns the largest item in the tree, or nil if the tree is empty. -func (t *BTree) Max() Item { - return max(t.root) -} - -// Has returns true if the given key is in the tree. -func (t *BTree) Has(key Item) bool { - return t.Get(key) != nil -} - -// Len returns the number of items currently in the tree. -func (t *BTree) Len() int { - return t.length -} - -// Clear removes all items from the btree. If addNodesToFreelist is true, -// t's nodes are added to its freelist as part of this call, until the freelist -// is full. Otherwise, the root node is simply dereferenced and the subtree -// left to Go's normal GC processes. -// -// This can be much faster -// than calling Delete on all elements, because that requires finding/removing -// each element in the tree and updating the tree accordingly. It also is -// somewhat faster than creating a new tree to replace the old one, because -// nodes from the old tree are reclaimed into the freelist for use by the new -// one, instead of being lost to the garbage collector. -// -// This call takes: -// O(1): when addNodesToFreelist is false, this is a single operation. -// O(1): when the freelist is already full, it breaks out immediately -// O(freelist size): when the freelist is empty and the nodes are all owned -// by this tree, nodes are added to the freelist until full. -// O(tree size): when all nodes are owned by another tree, all nodes are -// iterated over looking for nodes to add to the freelist, and due to -// ownership, none are. -func (t *BTree) Clear(addNodesToFreelist bool) { - if t.root != nil && addNodesToFreelist { - t.root.reset(t.cow) - } - t.root, t.length = nil, 0 -} - -// reset returns a subtree to the freelist. It breaks out immediately if the -// freelist is full, since the only benefit of iterating is to fill that -// freelist up. Returns true if parent reset call should continue. -func (n *node) reset(c *copyOnWriteContext) bool { - for _, child := range n.children { - if !child.reset(c) { - return false - } - } - return c.freeNode(n) != ftFreelistFull -} - -// Int implements the Item interface for integers. -type Int int - -// Less returns true if int(a) < int(b). -func (a Int) Less(b Item) bool { - return a < b.(Int) -} diff --git a/vendor/github.com/google/btree/btree_generic.go b/vendor/github.com/google/btree/btree_generic.go deleted file mode 100644 index e44a0f4880..0000000000 --- a/vendor/github.com/google/btree/btree_generic.go +++ /dev/null @@ -1,1083 +0,0 @@ -// Copyright 2014-2022 Google Inc. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build go1.18 -// +build go1.18 - -// In Go 1.18 and beyond, a BTreeG generic is created, and BTree is a specific -// instantiation of that generic for the Item interface, with a backwards- -// compatible API. Before go1.18, generics are not supported, -// and BTree is just an implementation based around the Item interface. - -// Package btree implements in-memory B-Trees of arbitrary degree. -// -// btree implements an in-memory B-Tree for use as an ordered data structure. -// It is not meant for persistent storage solutions. -// -// It has a flatter structure than an equivalent red-black or other binary tree, -// which in some cases yields better memory usage and/or performance. -// See some discussion on the matter here: -// http://google-opensource.blogspot.com/2013/01/c-containers-that-save-memory-and-time.html -// Note, though, that this project is in no way related to the C++ B-Tree -// implementation written about there. -// -// Within this tree, each node contains a slice of items and a (possibly nil) -// slice of children. For basic numeric values or raw structs, this can cause -// efficiency differences when compared to equivalent C++ template code that -// stores values in arrays within the node: -// * Due to the overhead of storing values as interfaces (each -// value needs to be stored as the value itself, then 2 words for the -// interface pointing to that value and its type), resulting in higher -// memory use. -// * Since interfaces can point to values anywhere in memory, values are -// most likely not stored in contiguous blocks, resulting in a higher -// number of cache misses. -// These issues don't tend to matter, though, when working with strings or other -// heap-allocated structures, since C++-equivalent structures also must store -// pointers and also distribute their values across the heap. -// -// This implementation is designed to be a drop-in replacement to gollrb.LLRB -// trees, (http://github.com/petar/gollrb), an excellent and probably the most -// widely used ordered tree implementation in the Go ecosystem currently. -// Its functions, therefore, exactly mirror those of -// llrb.LLRB where possible. Unlike gollrb, though, we currently don't -// support storing multiple equivalent values. -// -// There are two implementations; those suffixed with 'G' are generics, usable -// for any type, and require a passed-in "less" function to define their ordering. -// Those without this prefix are specific to the 'Item' interface, and use -// its 'Less' function for ordering. -package btree - -import ( - "fmt" - "io" - "sort" - "strings" - "sync" -) - -// Item represents a single object in the tree. -type Item interface { - // Less tests whether the current item is less than the given argument. - // - // This must provide a strict weak ordering. - // If !a.Less(b) && !b.Less(a), we treat this to mean a == b (i.e. we can only - // hold one of either a or b in the tree). - Less(than Item) bool -} - -const ( - DefaultFreeListSize = 32 -) - -// FreeListG represents a free list of btree nodes. By default each -// BTree has its own FreeList, but multiple BTrees can share the same -// FreeList, in particular when they're created with Clone. -// Two Btrees using the same freelist are safe for concurrent write access. -type FreeListG[T any] struct { - mu sync.Mutex - freelist []*node[T] -} - -// NewFreeListG creates a new free list. -// size is the maximum size of the returned free list. -func NewFreeListG[T any](size int) *FreeListG[T] { - return &FreeListG[T]{freelist: make([]*node[T], 0, size)} -} - -func (f *FreeListG[T]) newNode() (n *node[T]) { - f.mu.Lock() - index := len(f.freelist) - 1 - if index < 0 { - f.mu.Unlock() - return new(node[T]) - } - n = f.freelist[index] - f.freelist[index] = nil - f.freelist = f.freelist[:index] - f.mu.Unlock() - return -} - -func (f *FreeListG[T]) freeNode(n *node[T]) (out bool) { - f.mu.Lock() - if len(f.freelist) < cap(f.freelist) { - f.freelist = append(f.freelist, n) - out = true - } - f.mu.Unlock() - return -} - -// ItemIteratorG allows callers of {A/De}scend* to iterate in-order over portions of -// the tree. When this function returns false, iteration will stop and the -// associated Ascend* function will immediately return. -type ItemIteratorG[T any] func(item T) bool - -// Ordered represents the set of types for which the '<' operator work. -type Ordered interface { - ~int | ~int8 | ~int16 | ~int32 | ~int64 | ~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~float32 | ~float64 | ~string -} - -// Less[T] returns a default LessFunc that uses the '<' operator for types that support it. -func Less[T Ordered]() LessFunc[T] { - return func(a, b T) bool { return a < b } -} - -// NewOrderedG creates a new B-Tree for ordered types. -func NewOrderedG[T Ordered](degree int) *BTreeG[T] { - return NewG[T](degree, Less[T]()) -} - -// NewG creates a new B-Tree with the given degree. -// -// NewG(2), for example, will create a 2-3-4 tree (each node contains 1-3 items -// and 2-4 children). -// -// The passed-in LessFunc determines how objects of type T are ordered. -func NewG[T any](degree int, less LessFunc[T]) *BTreeG[T] { - return NewWithFreeListG(degree, less, NewFreeListG[T](DefaultFreeListSize)) -} - -// NewWithFreeListG creates a new B-Tree that uses the given node free list. -func NewWithFreeListG[T any](degree int, less LessFunc[T], f *FreeListG[T]) *BTreeG[T] { - if degree <= 1 { - panic("bad degree") - } - return &BTreeG[T]{ - degree: degree, - cow: ©OnWriteContext[T]{freelist: f, less: less}, - } -} - -// items stores items in a node. -type items[T any] []T - -// insertAt inserts a value into the given index, pushing all subsequent values -// forward. -func (s *items[T]) insertAt(index int, item T) { - var zero T - *s = append(*s, zero) - if index < len(*s) { - copy((*s)[index+1:], (*s)[index:]) - } - (*s)[index] = item -} - -// removeAt removes a value at a given index, pulling all subsequent values -// back. -func (s *items[T]) removeAt(index int) T { - item := (*s)[index] - copy((*s)[index:], (*s)[index+1:]) - var zero T - (*s)[len(*s)-1] = zero - *s = (*s)[:len(*s)-1] - return item -} - -// pop removes and returns the last element in the list. -func (s *items[T]) pop() (out T) { - index := len(*s) - 1 - out = (*s)[index] - var zero T - (*s)[index] = zero - *s = (*s)[:index] - return -} - -// truncate truncates this instance at index so that it contains only the -// first index items. index must be less than or equal to length. -func (s *items[T]) truncate(index int) { - var toClear items[T] - *s, toClear = (*s)[:index], (*s)[index:] - var zero T - for i := 0; i < len(toClear); i++ { - toClear[i] = zero - } -} - -// find returns the index where the given item should be inserted into this -// list. 'found' is true if the item already exists in the list at the given -// index. -func (s items[T]) find(item T, less func(T, T) bool) (index int, found bool) { - i := sort.Search(len(s), func(i int) bool { - return less(item, s[i]) - }) - if i > 0 && !less(s[i-1], item) { - return i - 1, true - } - return i, false -} - -// node is an internal node in a tree. -// -// It must at all times maintain the invariant that either -// * len(children) == 0, len(items) unconstrained -// * len(children) == len(items) + 1 -type node[T any] struct { - items items[T] - children items[*node[T]] - cow *copyOnWriteContext[T] -} - -func (n *node[T]) mutableFor(cow *copyOnWriteContext[T]) *node[T] { - if n.cow == cow { - return n - } - out := cow.newNode() - if cap(out.items) >= len(n.items) { - out.items = out.items[:len(n.items)] - } else { - out.items = make(items[T], len(n.items), cap(n.items)) - } - copy(out.items, n.items) - // Copy children - if cap(out.children) >= len(n.children) { - out.children = out.children[:len(n.children)] - } else { - out.children = make(items[*node[T]], len(n.children), cap(n.children)) - } - copy(out.children, n.children) - return out -} - -func (n *node[T]) mutableChild(i int) *node[T] { - c := n.children[i].mutableFor(n.cow) - n.children[i] = c - return c -} - -// split splits the given node at the given index. The current node shrinks, -// and this function returns the item that existed at that index and a new node -// containing all items/children after it. -func (n *node[T]) split(i int) (T, *node[T]) { - item := n.items[i] - next := n.cow.newNode() - next.items = append(next.items, n.items[i+1:]...) - n.items.truncate(i) - if len(n.children) > 0 { - next.children = append(next.children, n.children[i+1:]...) - n.children.truncate(i + 1) - } - return item, next -} - -// maybeSplitChild checks if a child should be split, and if so splits it. -// Returns whether or not a split occurred. -func (n *node[T]) maybeSplitChild(i, maxItems int) bool { - if len(n.children[i].items) < maxItems { - return false - } - first := n.mutableChild(i) - item, second := first.split(maxItems / 2) - n.items.insertAt(i, item) - n.children.insertAt(i+1, second) - return true -} - -// insert inserts an item into the subtree rooted at this node, making sure -// no nodes in the subtree exceed maxItems items. Should an equivalent item be -// be found/replaced by insert, it will be returned. -func (n *node[T]) insert(item T, maxItems int) (_ T, _ bool) { - i, found := n.items.find(item, n.cow.less) - if found { - out := n.items[i] - n.items[i] = item - return out, true - } - if len(n.children) == 0 { - n.items.insertAt(i, item) - return - } - if n.maybeSplitChild(i, maxItems) { - inTree := n.items[i] - switch { - case n.cow.less(item, inTree): - // no change, we want first split node - case n.cow.less(inTree, item): - i++ // we want second split node - default: - out := n.items[i] - n.items[i] = item - return out, true - } - } - return n.mutableChild(i).insert(item, maxItems) -} - -// get finds the given key in the subtree and returns it. -func (n *node[T]) get(key T) (_ T, _ bool) { - i, found := n.items.find(key, n.cow.less) - if found { - return n.items[i], true - } else if len(n.children) > 0 { - return n.children[i].get(key) - } - return -} - -// min returns the first item in the subtree. -func min[T any](n *node[T]) (_ T, found bool) { - if n == nil { - return - } - for len(n.children) > 0 { - n = n.children[0] - } - if len(n.items) == 0 { - return - } - return n.items[0], true -} - -// max returns the last item in the subtree. -func max[T any](n *node[T]) (_ T, found bool) { - if n == nil { - return - } - for len(n.children) > 0 { - n = n.children[len(n.children)-1] - } - if len(n.items) == 0 { - return - } - return n.items[len(n.items)-1], true -} - -// toRemove details what item to remove in a node.remove call. -type toRemove int - -const ( - removeItem toRemove = iota // removes the given item - removeMin // removes smallest item in the subtree - removeMax // removes largest item in the subtree -) - -// remove removes an item from the subtree rooted at this node. -func (n *node[T]) remove(item T, minItems int, typ toRemove) (_ T, _ bool) { - var i int - var found bool - switch typ { - case removeMax: - if len(n.children) == 0 { - return n.items.pop(), true - } - i = len(n.items) - case removeMin: - if len(n.children) == 0 { - return n.items.removeAt(0), true - } - i = 0 - case removeItem: - i, found = n.items.find(item, n.cow.less) - if len(n.children) == 0 { - if found { - return n.items.removeAt(i), true - } - return - } - default: - panic("invalid type") - } - // If we get to here, we have children. - if len(n.children[i].items) <= minItems { - return n.growChildAndRemove(i, item, minItems, typ) - } - child := n.mutableChild(i) - // Either we had enough items to begin with, or we've done some - // merging/stealing, because we've got enough now and we're ready to return - // stuff. - if found { - // The item exists at index 'i', and the child we've selected can give us a - // predecessor, since if we've gotten here it's got > minItems items in it. - out := n.items[i] - // We use our special-case 'remove' call with typ=maxItem to pull the - // predecessor of item i (the rightmost leaf of our immediate left child) - // and set it into where we pulled the item from. - var zero T - n.items[i], _ = child.remove(zero, minItems, removeMax) - return out, true - } - // Final recursive call. Once we're here, we know that the item isn't in this - // node and that the child is big enough to remove from. - return child.remove(item, minItems, typ) -} - -// growChildAndRemove grows child 'i' to make sure it's possible to remove an -// item from it while keeping it at minItems, then calls remove to actually -// remove it. -// -// Most documentation says we have to do two sets of special casing: -// 1) item is in this node -// 2) item is in child -// In both cases, we need to handle the two subcases: -// A) node has enough values that it can spare one -// B) node doesn't have enough values -// For the latter, we have to check: -// a) left sibling has node to spare -// b) right sibling has node to spare -// c) we must merge -// To simplify our code here, we handle cases #1 and #2 the same: -// If a node doesn't have enough items, we make sure it does (using a,b,c). -// We then simply redo our remove call, and the second time (regardless of -// whether we're in case 1 or 2), we'll have enough items and can guarantee -// that we hit case A. -func (n *node[T]) growChildAndRemove(i int, item T, minItems int, typ toRemove) (T, bool) { - if i > 0 && len(n.children[i-1].items) > minItems { - // Steal from left child - child := n.mutableChild(i) - stealFrom := n.mutableChild(i - 1) - stolenItem := stealFrom.items.pop() - child.items.insertAt(0, n.items[i-1]) - n.items[i-1] = stolenItem - if len(stealFrom.children) > 0 { - child.children.insertAt(0, stealFrom.children.pop()) - } - } else if i < len(n.items) && len(n.children[i+1].items) > minItems { - // steal from right child - child := n.mutableChild(i) - stealFrom := n.mutableChild(i + 1) - stolenItem := stealFrom.items.removeAt(0) - child.items = append(child.items, n.items[i]) - n.items[i] = stolenItem - if len(stealFrom.children) > 0 { - child.children = append(child.children, stealFrom.children.removeAt(0)) - } - } else { - if i >= len(n.items) { - i-- - } - child := n.mutableChild(i) - // merge with right child - mergeItem := n.items.removeAt(i) - mergeChild := n.children.removeAt(i + 1) - child.items = append(child.items, mergeItem) - child.items = append(child.items, mergeChild.items...) - child.children = append(child.children, mergeChild.children...) - n.cow.freeNode(mergeChild) - } - return n.remove(item, minItems, typ) -} - -type direction int - -const ( - descend = direction(-1) - ascend = direction(+1) -) - -type optionalItem[T any] struct { - item T - valid bool -} - -func optional[T any](item T) optionalItem[T] { - return optionalItem[T]{item: item, valid: true} -} -func empty[T any]() optionalItem[T] { - return optionalItem[T]{} -} - -// iterate provides a simple method for iterating over elements in the tree. -// -// When ascending, the 'start' should be less than 'stop' and when descending, -// the 'start' should be greater than 'stop'. Setting 'includeStart' to true -// will force the iterator to include the first item when it equals 'start', -// thus creating a "greaterOrEqual" or "lessThanEqual" rather than just a -// "greaterThan" or "lessThan" queries. -func (n *node[T]) iterate(dir direction, start, stop optionalItem[T], includeStart bool, hit bool, iter ItemIteratorG[T]) (bool, bool) { - var ok, found bool - var index int - switch dir { - case ascend: - if start.valid { - index, _ = n.items.find(start.item, n.cow.less) - } - for i := index; i < len(n.items); i++ { - if len(n.children) > 0 { - if hit, ok = n.children[i].iterate(dir, start, stop, includeStart, hit, iter); !ok { - return hit, false - } - } - if !includeStart && !hit && start.valid && !n.cow.less(start.item, n.items[i]) { - hit = true - continue - } - hit = true - if stop.valid && !n.cow.less(n.items[i], stop.item) { - return hit, false - } - if !iter(n.items[i]) { - return hit, false - } - } - if len(n.children) > 0 { - if hit, ok = n.children[len(n.children)-1].iterate(dir, start, stop, includeStart, hit, iter); !ok { - return hit, false - } - } - case descend: - if start.valid { - index, found = n.items.find(start.item, n.cow.less) - if !found { - index = index - 1 - } - } else { - index = len(n.items) - 1 - } - for i := index; i >= 0; i-- { - if start.valid && !n.cow.less(n.items[i], start.item) { - if !includeStart || hit || n.cow.less(start.item, n.items[i]) { - continue - } - } - if len(n.children) > 0 { - if hit, ok = n.children[i+1].iterate(dir, start, stop, includeStart, hit, iter); !ok { - return hit, false - } - } - if stop.valid && !n.cow.less(stop.item, n.items[i]) { - return hit, false // continue - } - hit = true - if !iter(n.items[i]) { - return hit, false - } - } - if len(n.children) > 0 { - if hit, ok = n.children[0].iterate(dir, start, stop, includeStart, hit, iter); !ok { - return hit, false - } - } - } - return hit, true -} - -// print is used for testing/debugging purposes. -func (n *node[T]) print(w io.Writer, level int) { - fmt.Fprintf(w, "%sNODE:%v\n", strings.Repeat(" ", level), n.items) - for _, c := range n.children { - c.print(w, level+1) - } -} - -// BTreeG is a generic implementation of a B-Tree. -// -// BTreeG stores items of type T in an ordered structure, allowing easy insertion, -// removal, and iteration. -// -// Write operations are not safe for concurrent mutation by multiple -// goroutines, but Read operations are. -type BTreeG[T any] struct { - degree int - length int - root *node[T] - cow *copyOnWriteContext[T] -} - -// LessFunc[T] determines how to order a type 'T'. It should implement a strict -// ordering, and should return true if within that ordering, 'a' < 'b'. -type LessFunc[T any] func(a, b T) bool - -// copyOnWriteContext pointers determine node ownership... a tree with a write -// context equivalent to a node's write context is allowed to modify that node. -// A tree whose write context does not match a node's is not allowed to modify -// it, and must create a new, writable copy (IE: it's a Clone). -// -// When doing any write operation, we maintain the invariant that the current -// node's context is equal to the context of the tree that requested the write. -// We do this by, before we descend into any node, creating a copy with the -// correct context if the contexts don't match. -// -// Since the node we're currently visiting on any write has the requesting -// tree's context, that node is modifiable in place. Children of that node may -// not share context, but before we descend into them, we'll make a mutable -// copy. -type copyOnWriteContext[T any] struct { - freelist *FreeListG[T] - less LessFunc[T] -} - -// Clone clones the btree, lazily. Clone should not be called concurrently, -// but the original tree (t) and the new tree (t2) can be used concurrently -// once the Clone call completes. -// -// The internal tree structure of b is marked read-only and shared between t and -// t2. Writes to both t and t2 use copy-on-write logic, creating new nodes -// whenever one of b's original nodes would have been modified. Read operations -// should have no performance degredation. Write operations for both t and t2 -// will initially experience minor slow-downs caused by additional allocs and -// copies due to the aforementioned copy-on-write logic, but should converge to -// the original performance characteristics of the original tree. -func (t *BTreeG[T]) Clone() (t2 *BTreeG[T]) { - // Create two entirely new copy-on-write contexts. - // This operation effectively creates three trees: - // the original, shared nodes (old b.cow) - // the new b.cow nodes - // the new out.cow nodes - cow1, cow2 := *t.cow, *t.cow - out := *t - t.cow = &cow1 - out.cow = &cow2 - return &out -} - -// maxItems returns the max number of items to allow per node. -func (t *BTreeG[T]) maxItems() int { - return t.degree*2 - 1 -} - -// minItems returns the min number of items to allow per node (ignored for the -// root node). -func (t *BTreeG[T]) minItems() int { - return t.degree - 1 -} - -func (c *copyOnWriteContext[T]) newNode() (n *node[T]) { - n = c.freelist.newNode() - n.cow = c - return -} - -type freeType int - -const ( - ftFreelistFull freeType = iota // node was freed (available for GC, not stored in freelist) - ftStored // node was stored in the freelist for later use - ftNotOwned // node was ignored by COW, since it's owned by another one -) - -// freeNode frees a node within a given COW context, if it's owned by that -// context. It returns what happened to the node (see freeType const -// documentation). -func (c *copyOnWriteContext[T]) freeNode(n *node[T]) freeType { - if n.cow == c { - // clear to allow GC - n.items.truncate(0) - n.children.truncate(0) - n.cow = nil - if c.freelist.freeNode(n) { - return ftStored - } else { - return ftFreelistFull - } - } else { - return ftNotOwned - } -} - -// ReplaceOrInsert adds the given item to the tree. If an item in the tree -// already equals the given one, it is removed from the tree and returned, -// and the second return value is true. Otherwise, (zeroValue, false) -// -// nil cannot be added to the tree (will panic). -func (t *BTreeG[T]) ReplaceOrInsert(item T) (_ T, _ bool) { - if t.root == nil { - t.root = t.cow.newNode() - t.root.items = append(t.root.items, item) - t.length++ - return - } else { - t.root = t.root.mutableFor(t.cow) - if len(t.root.items) >= t.maxItems() { - item2, second := t.root.split(t.maxItems() / 2) - oldroot := t.root - t.root = t.cow.newNode() - t.root.items = append(t.root.items, item2) - t.root.children = append(t.root.children, oldroot, second) - } - } - out, outb := t.root.insert(item, t.maxItems()) - if !outb { - t.length++ - } - return out, outb -} - -// Delete removes an item equal to the passed in item from the tree, returning -// it. If no such item exists, returns (zeroValue, false). -func (t *BTreeG[T]) Delete(item T) (T, bool) { - return t.deleteItem(item, removeItem) -} - -// DeleteMin removes the smallest item in the tree and returns it. -// If no such item exists, returns (zeroValue, false). -func (t *BTreeG[T]) DeleteMin() (T, bool) { - var zero T - return t.deleteItem(zero, removeMin) -} - -// DeleteMax removes the largest item in the tree and returns it. -// If no such item exists, returns (zeroValue, false). -func (t *BTreeG[T]) DeleteMax() (T, bool) { - var zero T - return t.deleteItem(zero, removeMax) -} - -func (t *BTreeG[T]) deleteItem(item T, typ toRemove) (_ T, _ bool) { - if t.root == nil || len(t.root.items) == 0 { - return - } - t.root = t.root.mutableFor(t.cow) - out, outb := t.root.remove(item, t.minItems(), typ) - if len(t.root.items) == 0 && len(t.root.children) > 0 { - oldroot := t.root - t.root = t.root.children[0] - t.cow.freeNode(oldroot) - } - if outb { - t.length-- - } - return out, outb -} - -// AscendRange calls the iterator for every value in the tree within the range -// [greaterOrEqual, lessThan), until iterator returns false. -func (t *BTreeG[T]) AscendRange(greaterOrEqual, lessThan T, iterator ItemIteratorG[T]) { - if t.root == nil { - return - } - t.root.iterate(ascend, optional[T](greaterOrEqual), optional[T](lessThan), true, false, iterator) -} - -// AscendLessThan calls the iterator for every value in the tree within the range -// [first, pivot), until iterator returns false. -func (t *BTreeG[T]) AscendLessThan(pivot T, iterator ItemIteratorG[T]) { - if t.root == nil { - return - } - t.root.iterate(ascend, empty[T](), optional(pivot), false, false, iterator) -} - -// AscendGreaterOrEqual calls the iterator for every value in the tree within -// the range [pivot, last], until iterator returns false. -func (t *BTreeG[T]) AscendGreaterOrEqual(pivot T, iterator ItemIteratorG[T]) { - if t.root == nil { - return - } - t.root.iterate(ascend, optional[T](pivot), empty[T](), true, false, iterator) -} - -// Ascend calls the iterator for every value in the tree within the range -// [first, last], until iterator returns false. -func (t *BTreeG[T]) Ascend(iterator ItemIteratorG[T]) { - if t.root == nil { - return - } - t.root.iterate(ascend, empty[T](), empty[T](), false, false, iterator) -} - -// DescendRange calls the iterator for every value in the tree within the range -// [lessOrEqual, greaterThan), until iterator returns false. -func (t *BTreeG[T]) DescendRange(lessOrEqual, greaterThan T, iterator ItemIteratorG[T]) { - if t.root == nil { - return - } - t.root.iterate(descend, optional[T](lessOrEqual), optional[T](greaterThan), true, false, iterator) -} - -// DescendLessOrEqual calls the iterator for every value in the tree within the range -// [pivot, first], until iterator returns false. -func (t *BTreeG[T]) DescendLessOrEqual(pivot T, iterator ItemIteratorG[T]) { - if t.root == nil { - return - } - t.root.iterate(descend, optional[T](pivot), empty[T](), true, false, iterator) -} - -// DescendGreaterThan calls the iterator for every value in the tree within -// the range [last, pivot), until iterator returns false. -func (t *BTreeG[T]) DescendGreaterThan(pivot T, iterator ItemIteratorG[T]) { - if t.root == nil { - return - } - t.root.iterate(descend, empty[T](), optional[T](pivot), false, false, iterator) -} - -// Descend calls the iterator for every value in the tree within the range -// [last, first], until iterator returns false. -func (t *BTreeG[T]) Descend(iterator ItemIteratorG[T]) { - if t.root == nil { - return - } - t.root.iterate(descend, empty[T](), empty[T](), false, false, iterator) -} - -// Get looks for the key item in the tree, returning it. It returns -// (zeroValue, false) if unable to find that item. -func (t *BTreeG[T]) Get(key T) (_ T, _ bool) { - if t.root == nil { - return - } - return t.root.get(key) -} - -// Min returns the smallest item in the tree, or (zeroValue, false) if the tree is empty. -func (t *BTreeG[T]) Min() (_ T, _ bool) { - return min(t.root) -} - -// Max returns the largest item in the tree, or (zeroValue, false) if the tree is empty. -func (t *BTreeG[T]) Max() (_ T, _ bool) { - return max(t.root) -} - -// Has returns true if the given key is in the tree. -func (t *BTreeG[T]) Has(key T) bool { - _, ok := t.Get(key) - return ok -} - -// Len returns the number of items currently in the tree. -func (t *BTreeG[T]) Len() int { - return t.length -} - -// Clear removes all items from the btree. If addNodesToFreelist is true, -// t's nodes are added to its freelist as part of this call, until the freelist -// is full. Otherwise, the root node is simply dereferenced and the subtree -// left to Go's normal GC processes. -// -// This can be much faster -// than calling Delete on all elements, because that requires finding/removing -// each element in the tree and updating the tree accordingly. It also is -// somewhat faster than creating a new tree to replace the old one, because -// nodes from the old tree are reclaimed into the freelist for use by the new -// one, instead of being lost to the garbage collector. -// -// This call takes: -// O(1): when addNodesToFreelist is false, this is a single operation. -// O(1): when the freelist is already full, it breaks out immediately -// O(freelist size): when the freelist is empty and the nodes are all owned -// by this tree, nodes are added to the freelist until full. -// O(tree size): when all nodes are owned by another tree, all nodes are -// iterated over looking for nodes to add to the freelist, and due to -// ownership, none are. -func (t *BTreeG[T]) Clear(addNodesToFreelist bool) { - if t.root != nil && addNodesToFreelist { - t.root.reset(t.cow) - } - t.root, t.length = nil, 0 -} - -// reset returns a subtree to the freelist. It breaks out immediately if the -// freelist is full, since the only benefit of iterating is to fill that -// freelist up. Returns true if parent reset call should continue. -func (n *node[T]) reset(c *copyOnWriteContext[T]) bool { - for _, child := range n.children { - if !child.reset(c) { - return false - } - } - return c.freeNode(n) != ftFreelistFull -} - -// Int implements the Item interface for integers. -type Int int - -// Less returns true if int(a) < int(b). -func (a Int) Less(b Item) bool { - return a < b.(Int) -} - -// BTree is an implementation of a B-Tree. -// -// BTree stores Item instances in an ordered structure, allowing easy insertion, -// removal, and iteration. -// -// Write operations are not safe for concurrent mutation by multiple -// goroutines, but Read operations are. -type BTree BTreeG[Item] - -var itemLess LessFunc[Item] = func(a, b Item) bool { - return a.Less(b) -} - -// New creates a new B-Tree with the given degree. -// -// New(2), for example, will create a 2-3-4 tree (each node contains 1-3 items -// and 2-4 children). -func New(degree int) *BTree { - return (*BTree)(NewG[Item](degree, itemLess)) -} - -// FreeList represents a free list of btree nodes. By default each -// BTree has its own FreeList, but multiple BTrees can share the same -// FreeList. -// Two Btrees using the same freelist are safe for concurrent write access. -type FreeList FreeListG[Item] - -// NewFreeList creates a new free list. -// size is the maximum size of the returned free list. -func NewFreeList(size int) *FreeList { - return (*FreeList)(NewFreeListG[Item](size)) -} - -// NewWithFreeList creates a new B-Tree that uses the given node free list. -func NewWithFreeList(degree int, f *FreeList) *BTree { - return (*BTree)(NewWithFreeListG[Item](degree, itemLess, (*FreeListG[Item])(f))) -} - -// ItemIterator allows callers of Ascend* to iterate in-order over portions of -// the tree. When this function returns false, iteration will stop and the -// associated Ascend* function will immediately return. -type ItemIterator ItemIteratorG[Item] - -// Clone clones the btree, lazily. Clone should not be called concurrently, -// but the original tree (t) and the new tree (t2) can be used concurrently -// once the Clone call completes. -// -// The internal tree structure of b is marked read-only and shared between t and -// t2. Writes to both t and t2 use copy-on-write logic, creating new nodes -// whenever one of b's original nodes would have been modified. Read operations -// should have no performance degredation. Write operations for both t and t2 -// will initially experience minor slow-downs caused by additional allocs and -// copies due to the aforementioned copy-on-write logic, but should converge to -// the original performance characteristics of the original tree. -func (t *BTree) Clone() (t2 *BTree) { - return (*BTree)((*BTreeG[Item])(t).Clone()) -} - -// Delete removes an item equal to the passed in item from the tree, returning -// it. If no such item exists, returns nil. -func (t *BTree) Delete(item Item) Item { - i, _ := (*BTreeG[Item])(t).Delete(item) - return i -} - -// DeleteMax removes the largest item in the tree and returns it. -// If no such item exists, returns nil. -func (t *BTree) DeleteMax() Item { - i, _ := (*BTreeG[Item])(t).DeleteMax() - return i -} - -// DeleteMin removes the smallest item in the tree and returns it. -// If no such item exists, returns nil. -func (t *BTree) DeleteMin() Item { - i, _ := (*BTreeG[Item])(t).DeleteMin() - return i -} - -// Get looks for the key item in the tree, returning it. It returns nil if -// unable to find that item. -func (t *BTree) Get(key Item) Item { - i, _ := (*BTreeG[Item])(t).Get(key) - return i -} - -// Max returns the largest item in the tree, or nil if the tree is empty. -func (t *BTree) Max() Item { - i, _ := (*BTreeG[Item])(t).Max() - return i -} - -// Min returns the smallest item in the tree, or nil if the tree is empty. -func (t *BTree) Min() Item { - i, _ := (*BTreeG[Item])(t).Min() - return i -} - -// Has returns true if the given key is in the tree. -func (t *BTree) Has(key Item) bool { - return (*BTreeG[Item])(t).Has(key) -} - -// ReplaceOrInsert adds the given item to the tree. If an item in the tree -// already equals the given one, it is removed from the tree and returned. -// Otherwise, nil is returned. -// -// nil cannot be added to the tree (will panic). -func (t *BTree) ReplaceOrInsert(item Item) Item { - i, _ := (*BTreeG[Item])(t).ReplaceOrInsert(item) - return i -} - -// AscendRange calls the iterator for every value in the tree within the range -// [greaterOrEqual, lessThan), until iterator returns false. -func (t *BTree) AscendRange(greaterOrEqual, lessThan Item, iterator ItemIterator) { - (*BTreeG[Item])(t).AscendRange(greaterOrEqual, lessThan, (ItemIteratorG[Item])(iterator)) -} - -// AscendLessThan calls the iterator for every value in the tree within the range -// [first, pivot), until iterator returns false. -func (t *BTree) AscendLessThan(pivot Item, iterator ItemIterator) { - (*BTreeG[Item])(t).AscendLessThan(pivot, (ItemIteratorG[Item])(iterator)) -} - -// AscendGreaterOrEqual calls the iterator for every value in the tree within -// the range [pivot, last], until iterator returns false. -func (t *BTree) AscendGreaterOrEqual(pivot Item, iterator ItemIterator) { - (*BTreeG[Item])(t).AscendGreaterOrEqual(pivot, (ItemIteratorG[Item])(iterator)) -} - -// Ascend calls the iterator for every value in the tree within the range -// [first, last], until iterator returns false. -func (t *BTree) Ascend(iterator ItemIterator) { - (*BTreeG[Item])(t).Ascend((ItemIteratorG[Item])(iterator)) -} - -// DescendRange calls the iterator for every value in the tree within the range -// [lessOrEqual, greaterThan), until iterator returns false. -func (t *BTree) DescendRange(lessOrEqual, greaterThan Item, iterator ItemIterator) { - (*BTreeG[Item])(t).DescendRange(lessOrEqual, greaterThan, (ItemIteratorG[Item])(iterator)) -} - -// DescendLessOrEqual calls the iterator for every value in the tree within the range -// [pivot, first], until iterator returns false. -func (t *BTree) DescendLessOrEqual(pivot Item, iterator ItemIterator) { - (*BTreeG[Item])(t).DescendLessOrEqual(pivot, (ItemIteratorG[Item])(iterator)) -} - -// DescendGreaterThan calls the iterator for every value in the tree within -// the range [last, pivot), until iterator returns false. -func (t *BTree) DescendGreaterThan(pivot Item, iterator ItemIterator) { - (*BTreeG[Item])(t).DescendGreaterThan(pivot, (ItemIteratorG[Item])(iterator)) -} - -// Descend calls the iterator for every value in the tree within the range -// [last, first], until iterator returns false. -func (t *BTree) Descend(iterator ItemIterator) { - (*BTreeG[Item])(t).Descend((ItemIteratorG[Item])(iterator)) -} - -// Len returns the number of items currently in the tree. -func (t *BTree) Len() int { - return (*BTreeG[Item])(t).Len() -} - -// Clear removes all items from the btree. If addNodesToFreelist is true, -// t's nodes are added to its freelist as part of this call, until the freelist -// is full. Otherwise, the root node is simply dereferenced and the subtree -// left to Go's normal GC processes. -// -// This can be much faster -// than calling Delete on all elements, because that requires finding/removing -// each element in the tree and updating the tree accordingly. It also is -// somewhat faster than creating a new tree to replace the old one, because -// nodes from the old tree are reclaimed into the freelist for use by the new -// one, instead of being lost to the garbage collector. -// -// This call takes: -// O(1): when addNodesToFreelist is false, this is a single operation. -// O(1): when the freelist is already full, it breaks out immediately -// O(freelist size): when the freelist is empty and the nodes are all owned -// by this tree, nodes are added to the freelist until full. -// O(tree size): when all nodes are owned by another tree, all nodes are -// iterated over looking for nodes to add to the freelist, and due to -// ownership, none are. -func (t *BTree) Clear(addNodesToFreelist bool) { - (*BTreeG[Item])(t).Clear(addNodesToFreelist) -} diff --git a/vendor/github.com/google/gopacket/.gitignore b/vendor/github.com/google/gopacket/.gitignore deleted file mode 100644 index 149266fdb6..0000000000 --- a/vendor/github.com/google/gopacket/.gitignore +++ /dev/null @@ -1,38 +0,0 @@ -# Compiled Object files, Static and Dynamic libs (Shared Objects) -*.o -*.a -*.so - -# Folders -_obj -_test - -# Architecture specific extensions/prefixes -*.[568vq] -[568vq].out - -*.cgo1.go -*.cgo2.c -_cgo_defun.c -_cgo_gotypes.go -_cgo_export.* - -_testmain.go - -*.exe -#* -*~ - -# examples binaries -examples/synscan/synscan -examples/pfdump/pfdump -examples/pcapdump/pcapdump -examples/httpassembly/httpassembly -examples/statsassembly/statsassembly -examples/arpscan/arpscan -examples/bidirectional/bidirectional -examples/bytediff/bytediff -examples/reassemblydump/reassemblydump -layers/gen -macs/gen -pcap/pcap_tester diff --git a/vendor/github.com/google/gopacket/.travis.gofmt.sh b/vendor/github.com/google/gopacket/.travis.gofmt.sh deleted file mode 100644 index e341a1cb78..0000000000 --- a/vendor/github.com/google/gopacket/.travis.gofmt.sh +++ /dev/null @@ -1,7 +0,0 @@ -#!/bin/bash - -cd "$(dirname $0)" -if [ -n "$(go fmt ./...)" ]; then - echo "Go code is not formatted, run 'go fmt github.com/google/stenographer/...'" >&2 - exit 1 -fi diff --git a/vendor/github.com/google/gopacket/.travis.golint.sh b/vendor/github.com/google/gopacket/.travis.golint.sh deleted file mode 100644 index 0e267f5216..0000000000 --- a/vendor/github.com/google/gopacket/.travis.golint.sh +++ /dev/null @@ -1,28 +0,0 @@ -#!/bin/bash - -cd "$(dirname $0)" - -go get golang.org/x/lint/golint -DIRS=". tcpassembly tcpassembly/tcpreader ip4defrag reassembly macs pcapgo pcap afpacket pfring routing defrag/lcmdefrag" -# Add subdirectories here as we clean up golint on each. -for subdir in $DIRS; do - pushd $subdir - if golint | - grep -v CannotSetRFMon | # pcap exported error name - grep -v DataLost | # tcpassembly/tcpreader exported error name - grep .; then - exit 1 - fi - popd -done - -pushd layers -for file in *.go; do - if cat .lint_blacklist | grep -q $file; then - echo "Skipping lint of $file due to .lint_blacklist" - elif golint $file | grep .; then - echo "Lint error in file $file" - exit 1 - fi -done -popd diff --git a/vendor/github.com/google/gopacket/.travis.govet.sh b/vendor/github.com/google/gopacket/.travis.govet.sh deleted file mode 100644 index a5c13544ca..0000000000 --- a/vendor/github.com/google/gopacket/.travis.govet.sh +++ /dev/null @@ -1,10 +0,0 @@ -#!/bin/bash - -cd "$(dirname $0)" -DIRS=". layers pcap pcapgo tcpassembly tcpassembly/tcpreader routing ip4defrag bytediff macs defrag/lcmdefrag" -set -e -for subdir in $DIRS; do - pushd $subdir - go vet - popd -done diff --git a/vendor/github.com/google/gopacket/.travis.install.sh b/vendor/github.com/google/gopacket/.travis.install.sh deleted file mode 100644 index 648c901638..0000000000 --- a/vendor/github.com/google/gopacket/.travis.install.sh +++ /dev/null @@ -1,9 +0,0 @@ -#!/bin/bash - -set -ev - -go get github.com/google/gopacket -go get github.com/google/gopacket/layers -go get github.com/google/gopacket/tcpassembly -go get github.com/google/gopacket/reassembly -go get github.com/google/gopacket/pcapgo diff --git a/vendor/github.com/google/gopacket/.travis.script.sh b/vendor/github.com/google/gopacket/.travis.script.sh deleted file mode 100644 index a483f4f7c6..0000000000 --- a/vendor/github.com/google/gopacket/.travis.script.sh +++ /dev/null @@ -1,10 +0,0 @@ -#!/bin/bash - -set -ev - -go test github.com/google/gopacket -go test github.com/google/gopacket/layers -go test github.com/google/gopacket/tcpassembly -go test github.com/google/gopacket/reassembly -go test github.com/google/gopacket/pcapgo -go test github.com/google/gopacket/pcap diff --git a/vendor/github.com/google/gopacket/.travis.yml b/vendor/github.com/google/gopacket/.travis.yml deleted file mode 100644 index 84f1f4945a..0000000000 --- a/vendor/github.com/google/gopacket/.travis.yml +++ /dev/null @@ -1,57 +0,0 @@ -language: go -go: - - 1.11.x - - 1.12.x - - 1.13.x - - master - -addons: - apt: - packages: - libpcap-dev - -# use modules except for older versions (see below) -install: true - -env: - - GO111MODULE=on - -script: ./.travis.script.sh - -matrix: - fast_finish: true - allow_failures: - - go: master - -jobs: - include: - - go: 1.5.x - install: ./.travis.install.sh - - go: 1.6.x - install: ./.travis.install.sh - - go: 1.7.x - install: ./.travis.install.sh - - go: 1.8.x - install: ./.travis.install.sh - - go: 1.9.x - install: ./.travis.install.sh - - go: 1.10.x - install: ./.travis.install.sh - - os: osx - go: 1.x -# windows doesn't work on travis (package installation just hangs and then errors out) -# - os: windows -# go: 1.x -# # We don't need nmap - but that's the only way to get npcap: -# before_install: choco install npcap --version 0.86 -y - - stage: style - name: "fmt/vet/lint" - go: 1.x - script: - - ./.travis.gofmt.sh - - ./.travis.govet.sh - - ./.travis.golint.sh - -stages: - - style - - test diff --git a/vendor/github.com/google/gopacket/AUTHORS b/vendor/github.com/google/gopacket/AUTHORS deleted file mode 100644 index 24e834e451..0000000000 --- a/vendor/github.com/google/gopacket/AUTHORS +++ /dev/null @@ -1,54 +0,0 @@ -AUTHORS AND MAINTAINERS: - -MAIN DEVELOPERS: -Graeme Connell - -AUTHORS: -Nigel Tao -Cole Mickens -Ben Daglish -Luis Martinez -Remco Verhoef -Hiroaki Kawai -Lukas Lueg -Laurent Hausermann -Bill Green -Christian Mäder -Gernot Vormayr -Vitor Garcia Graveto -Elias Chavarria Reyes -Daniel Rittweiler - -CONTRIBUTORS: -Attila Oláh -Vittus Mikiassen -Matthias Radestock -Matthew Sackman -Loic Prylli -Alexandre Fiori -Adrian Tam -Satoshi Matsumoto -David Stainton -Jesse Ward -Kane Mathers -Jose Selvi -Yerden Zhumabekov -Jensen Hwa - ------------------------------------------------ -FORKED FROM github.com/akrennmair/gopcap -ALL THE FOLLOWING ARE FOR THAT PROJECT - -MAIN DEVELOPERS: -Andreas Krennmair - -CONTRIBUTORS: -Andrea Nall -Daniel Arndt -Dustin Sallings -Graeme Connell -Guillaume Savary -Mark Smith -Miek Gieben -Mike Bell -Trevor Strohman diff --git a/vendor/github.com/google/gopacket/CONTRIBUTING.md b/vendor/github.com/google/gopacket/CONTRIBUTING.md deleted file mode 100644 index 99ab7a2e4f..0000000000 --- a/vendor/github.com/google/gopacket/CONTRIBUTING.md +++ /dev/null @@ -1,215 +0,0 @@ -Contributing To gopacket -======================== - -So you've got some code and you'd like it to be part of gopacket... wonderful! -We're happy to accept contributions, whether they're fixes to old protocols, new -protocols entirely, or anything else you think would improve the gopacket -library. This document is designed to help you to do just that. - -The first section deals with the plumbing: how to actually get a change -submitted. - -The second section deals with coding style... Go is great in that it -has a uniform style implemented by 'go fmt', but there's still some decisions -we've made that go above and beyond, and if you follow them, they won't come up -in your code review. - -The third section deals with some of the implementation decisions we've made, -which may help you to understand the current code and which we may ask you to -conform to (or provide compelling reasons for ignoring). - -Overall, we hope this document will help you to understand our system and write -great code which fits in, and help us to turn around on your code review quickly -so the code can make it into the master branch as quickly as possible. - - -How To Submit Code ------------------- - -We use github.com's Pull Request feature to receive code contributions from -external contributors. See -https://help.github.com/articles/creating-a-pull-request/ for details on -how to create a request. - -Also, there's a local script `gc` in the base directory of GoPacket that -runs a local set of checks, which should give you relatively high confidence -that your pull won't fail github pull checks. - -```sh -go get github.com/google/gopacket -cd $GOROOT/src/pkg/github.com/google/gopacket -git checkout -b # create a new branch to work from -... code code code ... -./gc # Run this to do local commits, it performs a number of checks -``` - -To sum up: - -* DO - + Pull down the latest version. - + Make a feature-specific branch. - + Code using the style and methods discussed in the rest of this document. - + Use the ./gc command to do local commits or check correctness. - + Push your new feature branch up to github.com, as a pull request. - + Handle comments and requests from reviewers, pushing new commits up to - your feature branch as problems are addressed. - + Put interesting comments and discussions into commit comments. -* DON'T - + Push to someone else's branch without their permission. - - -Coding Style ------------- - -* Go code must be run through `go fmt`, `go vet`, and `golint` -* Follow http://golang.org/doc/effective_go.html as much as possible. - + In particular, http://golang.org/doc/effective_go.html#mixed-caps. Enums - should be be CamelCase, with acronyms capitalized (TCPSourcePort, vs. - TcpSourcePort or TCP_SOURCE_PORT). -* Bonus points for giving enum types a String() field. -* Any exported types or functions should have commentary - (http://golang.org/doc/effective_go.html#commentary) - - -Coding Methods And Implementation Notes ---------------------------------------- - -### Error Handling - -Many times, you'll be decoding a protocol and run across something bad, a packet -corruption or the like. How do you handle this? First off, ALWAYS report the -error. You can do this either by returning the error from the decode() function -(most common), or if you're up for it you can implement and add an ErrorLayer -through the packet builder (the first method is a simple shortcut that does -exactly this, then stops any future decoding). - -Often, you'll already have decode some part of your protocol by the time you hit -your error. Use your own discretion to determine whether the stuff you've -already decoded should be returned to the caller or not: - -```go -func decodeMyProtocol(data []byte, p gopacket.PacketBuilder) error { - prot := &MyProtocol{} - if len(data) < 10 { - // This error occurred before we did ANYTHING, so there's nothing in my - // protocol that the caller could possibly want. Just return the error. - return fmt.Errorf("Length %d less than 10", len(data)) - } - prot.ImportantField1 = data[:5] - prot.ImportantField2 = data[5:10] - // At this point, we've already got enough information in 'prot' to - // warrant returning it to the caller, so we'll add it now. - p.AddLayer(prot) - if len(data) < 15 { - // We encountered an error later in the packet, but the caller already - // has the important info we've gleaned so far. - return fmt.Errorf("Length %d less than 15", len(data)) - } - prot.ImportantField3 = data[10:15] - return nil // We've already added the layer, we can just return success. -} -``` - -In general, our code follows the approach of returning the first error it -encounters. In general, we don't trust any bytes after the first error we see. - -### What Is A Layer? - -The definition of a layer is up to the discretion of the coder. It should be -something important enough that it's actually useful to the caller (IE: every -TLV value should probably NOT be a layer). However, it can be more granular -than a single protocol... IPv6 and SCTP both implement many layers to handle the -various parts of the protocol. Use your best judgement, and prepare to defend -your decisions during code review. ;) - -### Performance - -We strive to make gopacket as fast as possible while still providing lots of -features. In general, this means: - -* Focus performance tuning on common protocols (IP4/6, TCP, etc), and optimize - others on an as-needed basis (tons of MPLS on your network? Time to optimize - MPLS!) -* Use fast operations. See the toplevel benchmark_test for benchmarks of some - of Go's underlying features and types. -* Test your performance changes! You should use the ./gc script's --benchmark - flag to submit any performance-related changes. Use pcap/gopacket_benchmark - to test your change against a PCAP file based on your traffic patterns. -* Don't be TOO hacky. Sometimes, removing an unused struct from a field causes - a huge performance hit, due to the way that Go currently handles its segmented - stack... don't be afraid to clean it up anyway. We'll trust the Go compiler - to get good enough over time to handle this. Also, this type of - compiler-specific optimization is very fragile; someone adding a field to an - entirely different struct elsewhere in the codebase could reverse any gains - you might achieve by aligning your allocations. -* Try to minimize memory allocations. If possible, use []byte to reference - pieces of the input, instead of using string, which requires copying the bytes - into a new memory allocation. -* Think hard about what should be evaluated lazily vs. not. In general, a - layer's struct should almost exactly mirror the layer's frame. Anything - that's more interesting should be a function. This may not always be - possible, but it's a good rule of thumb. -* Don't fear micro-optimizations. With the above in mind, we welcome - micro-optimizations that we think will have positive/neutral impacts on the - majority of workloads. A prime example of this is pre-allocating certain - structs within a larger one: - -```go -type MyProtocol struct { - // Most packets have 1-4 of VeryCommon, so we preallocate it here. - initialAllocation [4]uint32 - VeryCommon []uint32 -} - -func decodeMyProtocol(data []byte, p gopacket.PacketBuilder) error { - prot := &MyProtocol{} - prot.VeryCommon = proto.initialAllocation[:0] - for len(data) > 4 { - field := binary.BigEndian.Uint32(data[:4]) - data = data[4:] - // Since we're using the underlying initialAllocation, we won't need to - // allocate new memory for the following append unless we more than 16 - // bytes of data, which should be the uncommon case. - prot.VeryCommon = append(prot.VeryCommon, field) - } - p.AddLayer(prot) - if len(data) > 0 { - return fmt.Errorf("MyProtocol packet has %d bytes left after decoding", len(data)) - } - return nil -} -``` - -### Slices And Data - -If you're pulling a slice from the data you're decoding, don't copy it. Just -use the slice itself. - -```go -type MyProtocol struct { - A, B net.IP -} -func decodeMyProtocol(data []byte, p gopacket.PacketBuilder) error { - p.AddLayer(&MyProtocol{ - A: data[:4], - B: data[4:8], - }) - return nil -} -``` - -The caller has already agreed, by using this library, that they won't modify the -set of bytes they pass in to the decoder, or the library has already copied the -set of bytes to a read-only location. See DecodeOptions.NoCopy for more -information. - -### Enums/Types - -If a protocol has an integer field (uint8, uint16, etc) with a couple of known -values that mean something special, make it a type. This allows us to do really -nice things like adding a String() function to them, so we can more easily -display those to users. Check out layers/enums.go for one example, as well as -layers/icmp.go for layer-specific enums. - -When naming things, try for descriptiveness over suscinctness. For example, -choose DNSResponseRecord over DNSRR. diff --git a/vendor/github.com/google/gopacket/LICENSE b/vendor/github.com/google/gopacket/LICENSE deleted file mode 100644 index 2100d524d9..0000000000 --- a/vendor/github.com/google/gopacket/LICENSE +++ /dev/null @@ -1,28 +0,0 @@ -Copyright (c) 2012 Google, Inc. All rights reserved. -Copyright (c) 2009-2011 Andreas Krennmair. All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are -met: - - * Redistributions of source code must retain the above copyright -notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above -copyright notice, this list of conditions and the following disclaimer -in the documentation and/or other materials provided with the -distribution. - * Neither the name of Andreas Krennmair, Google, nor the names of its -contributors may be used to endorse or promote products derived from -this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/google/gopacket/README.md b/vendor/github.com/google/gopacket/README.md deleted file mode 100644 index efe462ee10..0000000000 --- a/vendor/github.com/google/gopacket/README.md +++ /dev/null @@ -1,12 +0,0 @@ -# GoPacket - -This library provides packet decoding capabilities for Go. -See [godoc](https://godoc.org/github.com/google/gopacket) for more details. - -[![Build Status](https://travis-ci.org/google/gopacket.svg?branch=master)](https://travis-ci.org/google/gopacket) -[![GoDoc](https://godoc.org/github.com/google/gopacket?status.svg)](https://godoc.org/github.com/google/gopacket) - -Minimum Go version required is 1.5 except for pcapgo/EthernetHandle, afpacket, and bsdbpf which need at least 1.9 due to x/sys/unix dependencies. - -Originally forked from the gopcap project written by Andreas -Krennmair (http://github.com/akrennmair/gopcap). diff --git a/vendor/github.com/google/gopacket/base.go b/vendor/github.com/google/gopacket/base.go deleted file mode 100644 index 91e150c215..0000000000 --- a/vendor/github.com/google/gopacket/base.go +++ /dev/null @@ -1,178 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package gopacket - -import ( - "fmt" -) - -// Layer represents a single decoded packet layer (using either the -// OSI or TCP/IP definition of a layer). When decoding, a packet's data is -// broken up into a number of layers. The caller may call LayerType() to -// figure out which type of layer they've received from the packet. Optionally, -// they may then use a type assertion to get the actual layer type for deep -// inspection of the data. -type Layer interface { - // LayerType is the gopacket type for this layer. - LayerType() LayerType - // LayerContents returns the set of bytes that make up this layer. - LayerContents() []byte - // LayerPayload returns the set of bytes contained within this layer, not - // including the layer itself. - LayerPayload() []byte -} - -// Payload is a Layer containing the payload of a packet. The definition of -// what constitutes the payload of a packet depends on previous layers; for -// TCP and UDP, we stop decoding above layer 4 and return the remaining -// bytes as a Payload. Payload is an ApplicationLayer. -type Payload []byte - -// LayerType returns LayerTypePayload -func (p Payload) LayerType() LayerType { return LayerTypePayload } - -// LayerContents returns the bytes making up this layer. -func (p Payload) LayerContents() []byte { return []byte(p) } - -// LayerPayload returns the payload within this layer. -func (p Payload) LayerPayload() []byte { return nil } - -// Payload returns this layer as bytes. -func (p Payload) Payload() []byte { return []byte(p) } - -// String implements fmt.Stringer. -func (p Payload) String() string { return fmt.Sprintf("%d byte(s)", len(p)) } - -// GoString implements fmt.GoStringer. -func (p Payload) GoString() string { return LongBytesGoString([]byte(p)) } - -// CanDecode implements DecodingLayer. -func (p Payload) CanDecode() LayerClass { return LayerTypePayload } - -// NextLayerType implements DecodingLayer. -func (p Payload) NextLayerType() LayerType { return LayerTypeZero } - -// DecodeFromBytes implements DecodingLayer. -func (p *Payload) DecodeFromBytes(data []byte, df DecodeFeedback) error { - *p = Payload(data) - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (p Payload) SerializeTo(b SerializeBuffer, opts SerializeOptions) error { - bytes, err := b.PrependBytes(len(p)) - if err != nil { - return err - } - copy(bytes, p) - return nil -} - -// decodePayload decodes data by returning it all in a Payload layer. -func decodePayload(data []byte, p PacketBuilder) error { - payload := &Payload{} - if err := payload.DecodeFromBytes(data, p); err != nil { - return err - } - p.AddLayer(payload) - p.SetApplicationLayer(payload) - return nil -} - -// Fragment is a Layer containing a fragment of a larger frame, used by layers -// like IPv4 and IPv6 that allow for fragmentation of their payloads. -type Fragment []byte - -// LayerType returns LayerTypeFragment -func (p *Fragment) LayerType() LayerType { return LayerTypeFragment } - -// LayerContents implements Layer. -func (p *Fragment) LayerContents() []byte { return []byte(*p) } - -// LayerPayload implements Layer. -func (p *Fragment) LayerPayload() []byte { return nil } - -// Payload returns this layer as a byte slice. -func (p *Fragment) Payload() []byte { return []byte(*p) } - -// String implements fmt.Stringer. -func (p *Fragment) String() string { return fmt.Sprintf("%d byte(s)", len(*p)) } - -// CanDecode implements DecodingLayer. -func (p *Fragment) CanDecode() LayerClass { return LayerTypeFragment } - -// NextLayerType implements DecodingLayer. -func (p *Fragment) NextLayerType() LayerType { return LayerTypeZero } - -// DecodeFromBytes implements DecodingLayer. -func (p *Fragment) DecodeFromBytes(data []byte, df DecodeFeedback) error { - *p = Fragment(data) - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (p *Fragment) SerializeTo(b SerializeBuffer, opts SerializeOptions) error { - bytes, err := b.PrependBytes(len(*p)) - if err != nil { - return err - } - copy(bytes, *p) - return nil -} - -// decodeFragment decodes data by returning it all in a Fragment layer. -func decodeFragment(data []byte, p PacketBuilder) error { - payload := &Fragment{} - if err := payload.DecodeFromBytes(data, p); err != nil { - return err - } - p.AddLayer(payload) - p.SetApplicationLayer(payload) - return nil -} - -// These layers correspond to Internet Protocol Suite (TCP/IP) layers, and their -// corresponding OSI layers, as best as possible. - -// LinkLayer is the packet layer corresponding to TCP/IP layer 1 (OSI layer 2) -type LinkLayer interface { - Layer - LinkFlow() Flow -} - -// NetworkLayer is the packet layer corresponding to TCP/IP layer 2 (OSI -// layer 3) -type NetworkLayer interface { - Layer - NetworkFlow() Flow -} - -// TransportLayer is the packet layer corresponding to the TCP/IP layer 3 (OSI -// layer 4) -type TransportLayer interface { - Layer - TransportFlow() Flow -} - -// ApplicationLayer is the packet layer corresponding to the TCP/IP layer 4 (OSI -// layer 7), also known as the packet payload. -type ApplicationLayer interface { - Layer - Payload() []byte -} - -// ErrorLayer is a packet layer created when decoding of the packet has failed. -// Its payload is all the bytes that we were unable to decode, and the returned -// error details why the decoding failed. -type ErrorLayer interface { - Layer - Error() error -} diff --git a/vendor/github.com/google/gopacket/decode.go b/vendor/github.com/google/gopacket/decode.go deleted file mode 100644 index 2633f848ed..0000000000 --- a/vendor/github.com/google/gopacket/decode.go +++ /dev/null @@ -1,157 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package gopacket - -import ( - "errors" -) - -// DecodeFeedback is used by DecodingLayer layers to provide decoding metadata. -type DecodeFeedback interface { - // SetTruncated should be called if during decoding you notice that a packet - // is shorter than internal layer variables (HeaderLength, or the like) say it - // should be. It sets packet.Metadata().Truncated. - SetTruncated() -} - -type nilDecodeFeedback struct{} - -func (nilDecodeFeedback) SetTruncated() {} - -// NilDecodeFeedback implements DecodeFeedback by doing nothing. -var NilDecodeFeedback DecodeFeedback = nilDecodeFeedback{} - -// PacketBuilder is used by layer decoders to store the layers they've decoded, -// and to defer future decoding via NextDecoder. -// Typically, the pattern for use is: -// func (m *myDecoder) Decode(data []byte, p PacketBuilder) error { -// if myLayer, err := myDecodingLogic(data); err != nil { -// return err -// } else { -// p.AddLayer(myLayer) -// } -// // maybe do this, if myLayer is a LinkLayer -// p.SetLinkLayer(myLayer) -// return p.NextDecoder(nextDecoder) -// } -type PacketBuilder interface { - DecodeFeedback - // AddLayer should be called by a decoder immediately upon successful - // decoding of a layer. - AddLayer(l Layer) - // The following functions set the various specific layers in the final - // packet. Note that if many layers call SetX, the first call is kept and all - // other calls are ignored. - SetLinkLayer(LinkLayer) - SetNetworkLayer(NetworkLayer) - SetTransportLayer(TransportLayer) - SetApplicationLayer(ApplicationLayer) - SetErrorLayer(ErrorLayer) - // NextDecoder should be called by a decoder when they're done decoding a - // packet layer but not done with decoding the entire packet. The next - // decoder will be called to decode the last AddLayer's LayerPayload. - // Because of this, NextDecoder must only be called once all other - // PacketBuilder calls have been made. Set*Layer and AddLayer calls after - // NextDecoder calls will behave incorrectly. - NextDecoder(next Decoder) error - // DumpPacketData is used solely for decoding. If you come across an error - // you need to diagnose while processing a packet, call this and your packet's - // data will be dumped to stderr so you can create a test. This should never - // be called from a production decoder. - DumpPacketData() - // DecodeOptions returns the decode options - DecodeOptions() *DecodeOptions -} - -// Decoder is an interface for logic to decode a packet layer. Users may -// implement a Decoder to handle their own strange packet types, or may use one -// of the many decoders available in the 'layers' subpackage to decode things -// for them. -type Decoder interface { - // Decode decodes the bytes of a packet, sending decoded values and other - // information to PacketBuilder, and returning an error if unsuccessful. See - // the PacketBuilder documentation for more details. - Decode([]byte, PacketBuilder) error -} - -// DecodeFunc wraps a function to make it a Decoder. -type DecodeFunc func([]byte, PacketBuilder) error - -// Decode implements Decoder by calling itself. -func (d DecodeFunc) Decode(data []byte, p PacketBuilder) error { - // function, call thyself. - return d(data, p) -} - -// DecodePayload is a Decoder that returns a Payload layer containing all -// remaining bytes. -var DecodePayload Decoder = DecodeFunc(decodePayload) - -// DecodeUnknown is a Decoder that returns an Unknown layer containing all -// remaining bytes, useful if you run up against a layer that you're unable to -// decode yet. This layer is considered an ErrorLayer. -var DecodeUnknown Decoder = DecodeFunc(decodeUnknown) - -// DecodeFragment is a Decoder that returns a Fragment layer containing all -// remaining bytes. -var DecodeFragment Decoder = DecodeFunc(decodeFragment) - -// LayerTypeZero is an invalid layer type, but can be used to determine whether -// layer type has actually been set correctly. -var LayerTypeZero = RegisterLayerType(0, LayerTypeMetadata{Name: "Unknown", Decoder: DecodeUnknown}) - -// LayerTypeDecodeFailure is the layer type for the default error layer. -var LayerTypeDecodeFailure = RegisterLayerType(1, LayerTypeMetadata{Name: "DecodeFailure", Decoder: DecodeUnknown}) - -// LayerTypePayload is the layer type for a payload that we don't try to decode -// but treat as a success, IE: an application-level payload. -var LayerTypePayload = RegisterLayerType(2, LayerTypeMetadata{Name: "Payload", Decoder: DecodePayload}) - -// LayerTypeFragment is the layer type for a fragment of a layer transported -// by an underlying layer that supports fragmentation. -var LayerTypeFragment = RegisterLayerType(3, LayerTypeMetadata{Name: "Fragment", Decoder: DecodeFragment}) - -// DecodeFailure is a packet layer created if decoding of the packet data failed -// for some reason. It implements ErrorLayer. LayerContents will be the entire -// set of bytes that failed to parse, and Error will return the reason parsing -// failed. -type DecodeFailure struct { - data []byte - err error - stack []byte -} - -// Error returns the error encountered during decoding. -func (d *DecodeFailure) Error() error { return d.err } - -// LayerContents implements Layer. -func (d *DecodeFailure) LayerContents() []byte { return d.data } - -// LayerPayload implements Layer. -func (d *DecodeFailure) LayerPayload() []byte { return nil } - -// String implements fmt.Stringer. -func (d *DecodeFailure) String() string { - return "Packet decoding error: " + d.Error().Error() -} - -// Dump implements Dumper. -func (d *DecodeFailure) Dump() (s string) { - if d.stack != nil { - s = string(d.stack) - } - return -} - -// LayerType returns LayerTypeDecodeFailure -func (d *DecodeFailure) LayerType() LayerType { return LayerTypeDecodeFailure } - -// decodeUnknown "decodes" unsupported data types by returning an error. -// This decoder will thus always return a DecodeFailure layer. -func decodeUnknown(data []byte, p PacketBuilder) error { - return errors.New("Layer type not currently supported") -} diff --git a/vendor/github.com/google/gopacket/doc.go b/vendor/github.com/google/gopacket/doc.go deleted file mode 100644 index b46e43dfa5..0000000000 --- a/vendor/github.com/google/gopacket/doc.go +++ /dev/null @@ -1,432 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -/* -Package gopacket provides packet decoding for the Go language. - -gopacket contains many sub-packages with additional functionality you may find -useful, including: - - * layers: You'll probably use this every time. This contains of the logic - built into gopacket for decoding packet protocols. Note that all example - code below assumes that you have imported both gopacket and - gopacket/layers. - * pcap: C bindings to use libpcap to read packets off the wire. - * pfring: C bindings to use PF_RING to read packets off the wire. - * afpacket: C bindings for Linux's AF_PACKET to read packets off the wire. - * tcpassembly: TCP stream reassembly - -Also, if you're looking to dive right into code, see the examples subdirectory -for numerous simple binaries built using gopacket libraries. - -Minimum go version required is 1.5 except for pcapgo/EthernetHandle, afpacket, -and bsdbpf which need at least 1.7 due to x/sys/unix dependencies. - -Basic Usage - -gopacket takes in packet data as a []byte and decodes it into a packet with -a non-zero number of "layers". Each layer corresponds to a protocol -within the bytes. Once a packet has been decoded, the layers of the packet -can be requested from the packet. - - // Decode a packet - packet := gopacket.NewPacket(myPacketData, layers.LayerTypeEthernet, gopacket.Default) - // Get the TCP layer from this packet - if tcpLayer := packet.Layer(layers.LayerTypeTCP); tcpLayer != nil { - fmt.Println("This is a TCP packet!") - // Get actual TCP data from this layer - tcp, _ := tcpLayer.(*layers.TCP) - fmt.Printf("From src port %d to dst port %d\n", tcp.SrcPort, tcp.DstPort) - } - // Iterate over all layers, printing out each layer type - for _, layer := range packet.Layers() { - fmt.Println("PACKET LAYER:", layer.LayerType()) - } - -Packets can be decoded from a number of starting points. Many of our base -types implement Decoder, which allow us to decode packets for which -we don't have full data. - - // Decode an ethernet packet - ethP := gopacket.NewPacket(p1, layers.LayerTypeEthernet, gopacket.Default) - // Decode an IPv6 header and everything it contains - ipP := gopacket.NewPacket(p2, layers.LayerTypeIPv6, gopacket.Default) - // Decode a TCP header and its payload - tcpP := gopacket.NewPacket(p3, layers.LayerTypeTCP, gopacket.Default) - - -Reading Packets From A Source - -Most of the time, you won't just have a []byte of packet data lying around. -Instead, you'll want to read packets in from somewhere (file, interface, etc) -and process them. To do that, you'll want to build a PacketSource. - -First, you'll need to construct an object that implements the PacketDataSource -interface. There are implementations of this interface bundled with gopacket -in the gopacket/pcap and gopacket/pfring subpackages... see their documentation -for more information on their usage. Once you have a PacketDataSource, you can -pass it into NewPacketSource, along with a Decoder of your choice, to create -a PacketSource. - -Once you have a PacketSource, you can read packets from it in multiple ways. -See the docs for PacketSource for more details. The easiest method is the -Packets function, which returns a channel, then asynchronously writes new -packets into that channel, closing the channel if the packetSource hits an -end-of-file. - - packetSource := ... // construct using pcap or pfring - for packet := range packetSource.Packets() { - handlePacket(packet) // do something with each packet - } - -You can change the decoding options of the packetSource by setting fields in -packetSource.DecodeOptions... see the following sections for more details. - - -Lazy Decoding - -gopacket optionally decodes packet data lazily, meaning it -only decodes a packet layer when it needs to handle a function call. - - // Create a packet, but don't actually decode anything yet - packet := gopacket.NewPacket(myPacketData, layers.LayerTypeEthernet, gopacket.Lazy) - // Now, decode the packet up to the first IPv4 layer found but no further. - // If no IPv4 layer was found, the whole packet will be decoded looking for - // it. - ip4 := packet.Layer(layers.LayerTypeIPv4) - // Decode all layers and return them. The layers up to the first IPv4 layer - // are already decoded, and will not require decoding a second time. - layers := packet.Layers() - -Lazily-decoded packets are not concurrency-safe. Since layers have not all been -decoded, each call to Layer() or Layers() has the potential to mutate the packet -in order to decode the next layer. If a packet is used -in multiple goroutines concurrently, don't use gopacket.Lazy. Then gopacket -will decode the packet fully, and all future function calls won't mutate the -object. - - -NoCopy Decoding - -By default, gopacket will copy the slice passed to NewPacket and store the -copy within the packet, so future mutations to the bytes underlying the slice -don't affect the packet and its layers. If you can guarantee that the -underlying slice bytes won't be changed, you can use NoCopy to tell -gopacket.NewPacket, and it'll use the passed-in slice itself. - - // This channel returns new byte slices, each of which points to a new - // memory location that's guaranteed immutable for the duration of the - // packet. - for data := range myByteSliceChannel { - p := gopacket.NewPacket(data, layers.LayerTypeEthernet, gopacket.NoCopy) - doSomethingWithPacket(p) - } - -The fastest method of decoding is to use both Lazy and NoCopy, but note from -the many caveats above that for some implementations either or both may be -dangerous. - - -Pointers To Known Layers - -During decoding, certain layers are stored in the packet as well-known -layer types. For example, IPv4 and IPv6 are both considered NetworkLayer -layers, while TCP and UDP are both TransportLayer layers. We support 4 -layers, corresponding to the 4 layers of the TCP/IP layering scheme (roughly -anagalous to layers 2, 3, 4, and 7 of the OSI model). To access these, -you can use the packet.LinkLayer, packet.NetworkLayer, -packet.TransportLayer, and packet.ApplicationLayer functions. Each of -these functions returns a corresponding interface -(gopacket.{Link,Network,Transport,Application}Layer). The first three -provide methods for getting src/dst addresses for that particular layer, -while the final layer provides a Payload function to get payload data. -This is helpful, for example, to get payloads for all packets regardless -of their underlying data type: - - // Get packets from some source - for packet := range someSource { - if app := packet.ApplicationLayer(); app != nil { - if strings.Contains(string(app.Payload()), "magic string") { - fmt.Println("Found magic string in a packet!") - } - } - } - -A particularly useful layer is ErrorLayer, which is set whenever there's -an error parsing part of the packet. - - packet := gopacket.NewPacket(myPacketData, layers.LayerTypeEthernet, gopacket.Default) - if err := packet.ErrorLayer(); err != nil { - fmt.Println("Error decoding some part of the packet:", err) - } - -Note that we don't return an error from NewPacket because we may have decoded -a number of layers successfully before running into our erroneous layer. You -may still be able to get your Ethernet and IPv4 layers correctly, even if -your TCP layer is malformed. - - -Flow And Endpoint - -gopacket has two useful objects, Flow and Endpoint, for communicating in a protocol -independent manner the fact that a packet is coming from A and going to B. -The general layer types LinkLayer, NetworkLayer, and TransportLayer all provide -methods for extracting their flow information, without worrying about the type -of the underlying Layer. - -A Flow is a simple object made up of a set of two Endpoints, one source and one -destination. It details the sender and receiver of the Layer of the Packet. - -An Endpoint is a hashable representation of a source or destination. For -example, for LayerTypeIPv4, an Endpoint contains the IP address bytes for a v4 -IP packet. A Flow can be broken into Endpoints, and Endpoints can be combined -into Flows: - - packet := gopacket.NewPacket(myPacketData, layers.LayerTypeEthernet, gopacket.Lazy) - netFlow := packet.NetworkLayer().NetworkFlow() - src, dst := netFlow.Endpoints() - reverseFlow := gopacket.NewFlow(dst, src) - -Both Endpoint and Flow objects can be used as map keys, and the equality -operator can compare them, so you can easily group together all packets -based on endpoint criteria: - - flows := map[gopacket.Endpoint]chan gopacket.Packet - packet := gopacket.NewPacket(myPacketData, layers.LayerTypeEthernet, gopacket.Lazy) - // Send all TCP packets to channels based on their destination port. - if tcp := packet.Layer(layers.LayerTypeTCP); tcp != nil { - flows[tcp.TransportFlow().Dst()] <- packet - } - // Look for all packets with the same source and destination network address - if net := packet.NetworkLayer(); net != nil { - src, dst := net.NetworkFlow().Endpoints() - if src == dst { - fmt.Println("Fishy packet has same network source and dst: %s", src) - } - } - // Find all packets coming from UDP port 1000 to UDP port 500 - interestingFlow := gopacket.FlowFromEndpoints(layers.NewUDPPortEndpoint(1000), layers.NewUDPPortEndpoint(500)) - if t := packet.NetworkLayer(); t != nil && t.TransportFlow() == interestingFlow { - fmt.Println("Found that UDP flow I was looking for!") - } - -For load-balancing purposes, both Flow and Endpoint have FastHash() functions, -which provide quick, non-cryptographic hashes of their contents. Of particular -importance is the fact that Flow FastHash() is symmetric: A->B will have the same -hash as B->A. An example usage could be: - - channels := [8]chan gopacket.Packet - for i := 0; i < 8; i++ { - channels[i] = make(chan gopacket.Packet) - go packetHandler(channels[i]) - } - for packet := range getPackets() { - if net := packet.NetworkLayer(); net != nil { - channels[int(net.NetworkFlow().FastHash()) & 0x7] <- packet - } - } - -This allows us to split up a packet stream while still making sure that each -stream sees all packets for a flow (and its bidirectional opposite). - - -Implementing Your Own Decoder - -If your network has some strange encapsulation, you can implement your own -decoder. In this example, we handle Ethernet packets which are encapsulated -in a 4-byte header. - - // Create a layer type, should be unique and high, so it doesn't conflict, - // giving it a name and a decoder to use. - var MyLayerType = gopacket.RegisterLayerType(12345, gopacket.LayerTypeMetadata{Name: "MyLayerType", Decoder: gopacket.DecodeFunc(decodeMyLayer)}) - - // Implement my layer - type MyLayer struct { - StrangeHeader []byte - payload []byte - } - func (m MyLayer) LayerType() gopacket.LayerType { return MyLayerType } - func (m MyLayer) LayerContents() []byte { return m.StrangeHeader } - func (m MyLayer) LayerPayload() []byte { return m.payload } - - // Now implement a decoder... this one strips off the first 4 bytes of the - // packet. - func decodeMyLayer(data []byte, p gopacket.PacketBuilder) error { - // Create my layer - p.AddLayer(&MyLayer{data[:4], data[4:]}) - // Determine how to handle the rest of the packet - return p.NextDecoder(layers.LayerTypeEthernet) - } - - // Finally, decode your packets: - p := gopacket.NewPacket(data, MyLayerType, gopacket.Lazy) - -See the docs for Decoder and PacketBuilder for more details on how coding -decoders works, or look at RegisterLayerType and RegisterEndpointType to see how -to add layer/endpoint types to gopacket. - - -Fast Decoding With DecodingLayerParser - -TLDR: DecodingLayerParser takes about 10% of the time as NewPacket to decode -packet data, but only for known packet stacks. - -Basic decoding using gopacket.NewPacket or PacketSource.Packets is somewhat slow -due to its need to allocate a new packet and every respective layer. It's very -versatile and can handle all known layer types, but sometimes you really only -care about a specific set of layers regardless, so that versatility is wasted. - -DecodingLayerParser avoids memory allocation altogether by decoding packet -layers directly into preallocated objects, which you can then reference to get -the packet's information. A quick example: - - func main() { - var eth layers.Ethernet - var ip4 layers.IPv4 - var ip6 layers.IPv6 - var tcp layers.TCP - parser := gopacket.NewDecodingLayerParser(layers.LayerTypeEthernet, ð, &ip4, &ip6, &tcp) - decoded := []gopacket.LayerType{} - for packetData := range somehowGetPacketData() { - if err := parser.DecodeLayers(packetData, &decoded); err != nil { - fmt.Fprintf(os.Stderr, "Could not decode layers: %v\n", err) - continue - } - for _, layerType := range decoded { - switch layerType { - case layers.LayerTypeIPv6: - fmt.Println(" IP6 ", ip6.SrcIP, ip6.DstIP) - case layers.LayerTypeIPv4: - fmt.Println(" IP4 ", ip4.SrcIP, ip4.DstIP) - } - } - } - } - -The important thing to note here is that the parser is modifying the passed in -layers (eth, ip4, ip6, tcp) instead of allocating new ones, thus greatly -speeding up the decoding process. It's even branching based on layer type... -it'll handle an (eth, ip4, tcp) or (eth, ip6, tcp) stack. However, it won't -handle any other type... since no other decoders were passed in, an (eth, ip4, -udp) stack will stop decoding after ip4, and only pass back [LayerTypeEthernet, -LayerTypeIPv4] through the 'decoded' slice (along with an error saying it can't -decode a UDP packet). - -Unfortunately, not all layers can be used by DecodingLayerParser... only those -implementing the DecodingLayer interface are usable. Also, it's possible to -create DecodingLayers that are not themselves Layers... see -layers.IPv6ExtensionSkipper for an example of this. - -Faster And Customized Decoding with DecodingLayerContainer - -By default, DecodingLayerParser uses native map to store and search for a layer -to decode. Though being versatile, in some cases this solution may be not so -optimal. For example, if you have only few layers faster operations may be -provided by sparse array indexing or linear array scan. - -To accomodate these scenarios, DecodingLayerContainer interface is introduced -along with its implementations: DecodingLayerSparse, DecodingLayerArray and -DecodingLayerMap. You can specify a container implementation to -DecodingLayerParser with SetDecodingLayerContainer method. Example: - - dlp := gopacket.NewDecodingLayerParser(LayerTypeEthernet) - dlp.SetDecodingLayerContainer(gopacket.DecodingLayerSparse(nil)) - var eth layers.Ethernet - dlp.AddDecodingLayer(ð) - // ... add layers and use DecodingLayerParser as usual... - -To skip one level of indirection (though sacrificing some capabilities) you may -also use DecodingLayerContainer as a decoding tool as it is. In this case you have to -handle unknown layer types and layer panics by yourself. Example: - - func main() { - var eth layers.Ethernet - var ip4 layers.IPv4 - var ip6 layers.IPv6 - var tcp layers.TCP - dlc := gopacket.DecodingLayerContainer(gopacket.DecodingLayerArray(nil)) - dlc = dlc.Put(ð) - dlc = dlc.Put(&ip4) - dlc = dlc.Put(&ip6) - dlc = dlc.Put(&tcp) - // you may specify some meaningful DecodeFeedback - decoder := dlc.LayersDecoder(LayerTypeEthernet, gopacket.NilDecodeFeedback) - decoded := make([]gopacket.LayerType, 0, 20) - for packetData := range somehowGetPacketData() { - lt, err := decoder(packetData, &decoded) - if err != nil { - fmt.Fprintf(os.Stderr, "Could not decode layers: %v\n", err) - continue - } - if lt != gopacket.LayerTypeZero { - fmt.Fprintf(os.Stderr, "unknown layer type: %v\n", lt) - continue - } - for _, layerType := range decoded { - // examine decoded layertypes just as already shown above - } - } - } - -DecodingLayerSparse is the fastest but most effective when LayerType values -that layers in use can decode are not large because otherwise that would lead -to bigger memory footprint. DecodingLayerArray is very compact and primarily -usable if the number of decoding layers is not big (up to ~10-15, but please do -your own benchmarks). DecodingLayerMap is the most versatile one and used by -DecodingLayerParser by default. Please refer to tests and benchmarks in layers -subpackage to further examine usage examples and performance measurements. - -You may also choose to implement your own DecodingLayerContainer if you want to -make use of your own internal packet decoding logic. - -Creating Packet Data - -As well as offering the ability to decode packet data, gopacket will allow you -to create packets from scratch, as well. A number of gopacket layers implement -the SerializableLayer interface; these layers can be serialized to a []byte in -the following manner: - - ip := &layers.IPv4{ - SrcIP: net.IP{1, 2, 3, 4}, - DstIP: net.IP{5, 6, 7, 8}, - // etc... - } - buf := gopacket.NewSerializeBuffer() - opts := gopacket.SerializeOptions{} // See SerializeOptions for more details. - err := ip.SerializeTo(buf, opts) - if err != nil { panic(err) } - fmt.Println(buf.Bytes()) // prints out a byte slice containing the serialized IPv4 layer. - -SerializeTo PREPENDS the given layer onto the SerializeBuffer, and they treat -the current buffer's Bytes() slice as the payload of the serializing layer. -Therefore, you can serialize an entire packet by serializing a set of layers in -reverse order (Payload, then TCP, then IP, then Ethernet, for example). The -SerializeBuffer's SerializeLayers function is a helper that does exactly that. - -To generate a (empty and useless, because no fields are set) -Ethernet(IPv4(TCP(Payload))) packet, for example, you can run: - - buf := gopacket.NewSerializeBuffer() - opts := gopacket.SerializeOptions{} - gopacket.SerializeLayers(buf, opts, - &layers.Ethernet{}, - &layers.IPv4{}, - &layers.TCP{}, - gopacket.Payload([]byte{1, 2, 3, 4})) - packetData := buf.Bytes() - -A Final Note - -If you use gopacket, you'll almost definitely want to make sure gopacket/layers -is imported, since when imported it sets all the LayerType variables and fills -in a lot of interesting variables/maps (DecodersByLayerName, etc). Therefore, -it's recommended that even if you don't use any layers functions directly, you still import with: - - import ( - _ "github.com/google/gopacket/layers" - ) -*/ -package gopacket diff --git a/vendor/github.com/google/gopacket/flows.go b/vendor/github.com/google/gopacket/flows.go deleted file mode 100644 index a00c88398e..0000000000 --- a/vendor/github.com/google/gopacket/flows.go +++ /dev/null @@ -1,236 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package gopacket - -import ( - "bytes" - "fmt" - "strconv" -) - -// MaxEndpointSize determines the maximum size in bytes of an endpoint address. -// -// Endpoints/Flows have a problem: They need to be hashable. Therefore, they -// can't use a byte slice. The two obvious choices are to use a string or a -// byte array. Strings work great, but string creation requires memory -// allocation, which can be slow. Arrays work great, but have a fixed size. We -// originally used the former, now we've switched to the latter. Use of a fixed -// byte-array doubles the speed of constructing a flow (due to not needing to -// allocate). This is a huge increase... too much for us to pass up. -// -// The end result of this, though, is that an endpoint/flow can't be created -// using more than MaxEndpointSize bytes per address. -const MaxEndpointSize = 16 - -// Endpoint is the set of bytes used to address packets at various layers. -// See LinkLayer, NetworkLayer, and TransportLayer specifications. -// Endpoints are usable as map keys. -type Endpoint struct { - typ EndpointType - len int - raw [MaxEndpointSize]byte -} - -// EndpointType returns the endpoint type associated with this endpoint. -func (a Endpoint) EndpointType() EndpointType { return a.typ } - -// Raw returns the raw bytes of this endpoint. These aren't human-readable -// most of the time, but they are faster than calling String. -func (a Endpoint) Raw() []byte { return a.raw[:a.len] } - -// LessThan provides a stable ordering for all endpoints. It sorts first based -// on the EndpointType of an endpoint, then based on the raw bytes of that -// endpoint. -// -// For some endpoints, the actual comparison may not make sense, however this -// ordering does provide useful information for most Endpoint types. -// Ordering is based first on endpoint type, then on raw endpoint bytes. -// Endpoint bytes are sorted lexicographically. -func (a Endpoint) LessThan(b Endpoint) bool { - return a.typ < b.typ || (a.typ == b.typ && bytes.Compare(a.raw[:a.len], b.raw[:b.len]) < 0) -} - -// fnvHash is used by our FastHash functions, and implements the FNV hash -// created by Glenn Fowler, Landon Curt Noll, and Phong Vo. -// See http://isthe.com/chongo/tech/comp/fnv/. -func fnvHash(s []byte) (h uint64) { - h = fnvBasis - for i := 0; i < len(s); i++ { - h ^= uint64(s[i]) - h *= fnvPrime - } - return -} - -const fnvBasis = 14695981039346656037 -const fnvPrime = 1099511628211 - -// FastHash provides a quick hashing function for an endpoint, useful if you'd -// like to split up endpoints by modulos or other load-balancing techniques. -// It uses a variant of Fowler-Noll-Vo hashing. -// -// The output of FastHash is not guaranteed to remain the same through future -// code revisions, so should not be used to key values in persistent storage. -func (a Endpoint) FastHash() (h uint64) { - h = fnvHash(a.raw[:a.len]) - h ^= uint64(a.typ) - h *= fnvPrime - return -} - -// NewEndpoint creates a new Endpoint object. -// -// The size of raw must be less than MaxEndpointSize, otherwise this function -// will panic. -func NewEndpoint(typ EndpointType, raw []byte) (e Endpoint) { - e.len = len(raw) - if e.len > MaxEndpointSize { - panic("raw byte length greater than MaxEndpointSize") - } - e.typ = typ - copy(e.raw[:], raw) - return -} - -// EndpointTypeMetadata is used to register a new endpoint type. -type EndpointTypeMetadata struct { - // Name is the string returned by an EndpointType's String function. - Name string - // Formatter is called from an Endpoint's String function to format the raw - // bytes in an Endpoint into a human-readable string. - Formatter func([]byte) string -} - -// EndpointType is the type of a gopacket Endpoint. This type determines how -// the bytes stored in the endpoint should be interpreted. -type EndpointType int64 - -var endpointTypes = map[EndpointType]EndpointTypeMetadata{} - -// RegisterEndpointType creates a new EndpointType and registers it globally. -// It MUST be passed a unique number, or it will panic. Numbers 0-999 are -// reserved for gopacket's use. -func RegisterEndpointType(num int, meta EndpointTypeMetadata) EndpointType { - t := EndpointType(num) - if _, ok := endpointTypes[t]; ok { - panic("Endpoint type number already in use") - } - endpointTypes[t] = meta - return t -} - -func (e EndpointType) String() string { - if t, ok := endpointTypes[e]; ok { - return t.Name - } - return strconv.Itoa(int(e)) -} - -func (a Endpoint) String() string { - if t, ok := endpointTypes[a.typ]; ok && t.Formatter != nil { - return t.Formatter(a.raw[:a.len]) - } - return fmt.Sprintf("%v:%v", a.typ, a.raw) -} - -// Flow represents the direction of traffic for a packet layer, as a source and destination Endpoint. -// Flows are usable as map keys. -type Flow struct { - typ EndpointType - slen, dlen int - src, dst [MaxEndpointSize]byte -} - -// FlowFromEndpoints creates a new flow by pasting together two endpoints. -// The endpoints must have the same EndpointType, or this function will return -// an error. -func FlowFromEndpoints(src, dst Endpoint) (_ Flow, err error) { - if src.typ != dst.typ { - err = fmt.Errorf("Mismatched endpoint types: %v->%v", src.typ, dst.typ) - return - } - return Flow{src.typ, src.len, dst.len, src.raw, dst.raw}, nil -} - -// FastHash provides a quick hashing function for a flow, useful if you'd -// like to split up flows by modulos or other load-balancing techniques. -// It uses a variant of Fowler-Noll-Vo hashing, and is guaranteed to collide -// with its reverse flow. IE: the flow A->B will have the same hash as the flow -// B->A. -// -// The output of FastHash is not guaranteed to remain the same through future -// code revisions, so should not be used to key values in persistent storage. -func (f Flow) FastHash() (h uint64) { - // This combination must be commutative. We don't use ^, since that would - // give the same hash for all A->A flows. - h = fnvHash(f.src[:f.slen]) + fnvHash(f.dst[:f.dlen]) - h ^= uint64(f.typ) - h *= fnvPrime - return -} - -// String returns a human-readable representation of this flow, in the form -// "Src->Dst" -func (f Flow) String() string { - s, d := f.Endpoints() - return fmt.Sprintf("%v->%v", s, d) -} - -// EndpointType returns the EndpointType for this Flow. -func (f Flow) EndpointType() EndpointType { - return f.typ -} - -// Endpoints returns the two Endpoints for this flow. -func (f Flow) Endpoints() (src, dst Endpoint) { - return Endpoint{f.typ, f.slen, f.src}, Endpoint{f.typ, f.dlen, f.dst} -} - -// Src returns the source Endpoint for this flow. -func (f Flow) Src() (src Endpoint) { - src, _ = f.Endpoints() - return -} - -// Dst returns the destination Endpoint for this flow. -func (f Flow) Dst() (dst Endpoint) { - _, dst = f.Endpoints() - return -} - -// Reverse returns a new flow with endpoints reversed. -func (f Flow) Reverse() Flow { - return Flow{f.typ, f.dlen, f.slen, f.dst, f.src} -} - -// NewFlow creates a new flow. -// -// src and dst must have length <= MaxEndpointSize, otherwise NewFlow will -// panic. -func NewFlow(t EndpointType, src, dst []byte) (f Flow) { - f.slen = len(src) - f.dlen = len(dst) - if f.slen > MaxEndpointSize || f.dlen > MaxEndpointSize { - panic("flow raw byte length greater than MaxEndpointSize") - } - f.typ = t - copy(f.src[:], src) - copy(f.dst[:], dst) - return -} - -// EndpointInvalid is an endpoint type used for invalid endpoints, IE endpoints -// that are specified incorrectly during creation. -var EndpointInvalid = RegisterEndpointType(0, EndpointTypeMetadata{Name: "invalid", Formatter: func(b []byte) string { - return fmt.Sprintf("%v", b) -}}) - -// InvalidEndpoint is a singleton Endpoint of type EndpointInvalid. -var InvalidEndpoint = NewEndpoint(EndpointInvalid, nil) - -// InvalidFlow is a singleton Flow of type EndpointInvalid. -var InvalidFlow = NewFlow(EndpointInvalid, nil, nil) diff --git a/vendor/github.com/google/gopacket/gc b/vendor/github.com/google/gopacket/gc deleted file mode 100644 index b1d8d2e1f6..0000000000 --- a/vendor/github.com/google/gopacket/gc +++ /dev/null @@ -1,288 +0,0 @@ -#!/bin/bash -# Copyright 2012 Google, Inc. All rights reserved. - -# This script provides a simple way to run benchmarks against previous code and -# keep a log of how benchmarks change over time. When used with the --benchmark -# flag, it runs benchmarks from the current code and from the last commit run -# with --benchmark, then stores the results in the git commit description. We -# rerun the old benchmarks along with the new ones, since there's no guarantee -# that git commits will happen on the same machine, so machine differences could -# cause wildly inaccurate results. -# -# If you're making changes to 'gopacket' which could cause performance changes, -# you may be requested to use this commit script to make sure your changes don't -# have large detrimental effects (or to show off how awesome your performance -# improvements are). -# -# If not run with the --benchmark flag, this script is still very useful... it -# makes sure all the correct go formatting, building, and testing work as -# expected. - -function Usage { - cat < - ---benchmark: Run benchmark comparisons against last benchmark'd commit ---root: Run tests that require root priviledges ---gen: Generate code for MACs/ports by pulling down external data - -Note, some 'git commit' flags are necessary, if all else fails, pass in -a -EOF - exit 1 -} - -BENCH="" -GEN="" -ROOT="" -while [ ! -z "$1" ]; do - case "$1" in - "--benchmark") - BENCH="$2" - shift - shift - ;; - "--gen") - GEN="yes" - shift - ;; - "--root") - ROOT="yes" - shift - ;; - "--help") - Usage - ;; - "-h") - Usage - ;; - "help") - Usage - ;; - *) - break - ;; - esac -done - -function Root { - if [ ! -z "$ROOT" ]; then - local exec="$1" - # Some folks (like me) keep source code in places inaccessible by root (like - # NFS), so to make sure things run smoothly we copy them to a /tmp location. - local tmpfile="$(mktemp -t gopacket_XXXXXXXX)" - echo "Running root test executable $exec as $tmpfile" - cp "$exec" "$tmpfile" - chmod a+x "$tmpfile" - shift - sudo "$tmpfile" "$@" - fi -} - -if [ "$#" -eq "0" ]; then - Usage -fi - -cd $(dirname $0) - -# Check for copyright notices. -for filename in $(find ./ -type f -name '*.go'); do - if ! head -n 1 "$filename" | grep -q Copyright; then - echo "File '$filename' may not have copyright notice" - exit 1 - fi -done - -set -e -set -x - -if [ ! -z "$ROOT" ]; then - echo "Running SUDO to get root priviledges for root tests" - sudo echo "have root" -fi - -if [ ! -z "$GEN" ]; then - pushd macs - go run gen.go | gofmt > valid_mac_prefixes.go - popd - pushd layers - go run gen.go | gofmt > iana_ports.go - go run gen2.go | gofmt > enums_generated.go - popd -fi - -# Make sure everything is formatted, compiles, and tests pass. -go fmt ./... -go test -i ./... 2>/dev/null >/dev/null || true -go test -go build -pushd examples/bytediff -go build -popd -if [ -f /usr/include/pcap.h ]; then - pushd pcap - go test ./... - go build ./... - go build pcap_tester.go - Root pcap_tester --mode=basic - Root pcap_tester --mode=filtered - Root pcap_tester --mode=timestamp || echo "You might not support timestamp sources" - popd - pushd examples/afpacket - go build - popd - pushd examples/pcapdump - go build - popd - pushd examples/arpscan - go build - popd - pushd examples/bidirectional - go build - popd - pushd examples/synscan - go build - popd - pushd examples/httpassembly - go build - popd - pushd examples/statsassembly - go build - popd -fi -pushd macs -go test ./... -gofmt -w gen.go -go build gen.go -popd -pushd tcpassembly -go test ./... -popd -pushd reassembly -go test ./... -popd -pushd layers -gofmt -w gen.go -go build gen.go -go test ./... -popd -pushd pcapgo -go test ./... -go build ./... -popd -if [ -f /usr/include/linux/if_packet.h ]; then - if grep -q TPACKET_V3 /usr/include/linux/if_packet.h; then - pushd afpacket - go build ./... - go test ./... - popd - fi -fi -if [ -f /usr/include/pfring.h ]; then - pushd pfring - go test ./... - go build ./... - popd - pushd examples/pfdump - go build - popd -fi -pushd ip4defrag -go test ./... -popd -pushd defrag -go test ./... -popd - -for travis_script in `ls .travis.*.sh`; do - ./$travis_script -done - -# Run our initial commit -git commit "$@" - -if [ -z "$BENCH" ]; then - set +x - echo "We're not benchmarking and we've committed... we're done!" - exit -fi - -### If we get here, we want to run benchmarks from current commit, and compare -### then to benchmarks from the last --benchmark commit. - -# Get our current branch. -BRANCH="$(git branch | grep '^*' | awk '{print $2}')" - -# File we're going to build our commit description in. -COMMIT_FILE="$(mktemp /tmp/tmp.XXXXXXXX)" - -# Add the word "BENCH" to the start of the git commit. -echo -n "BENCH " > $COMMIT_FILE - -# Get the current description... there must be an easier way. -git log -n 1 | grep '^ ' | sed 's/^ //' >> $COMMIT_FILE - -# Get the commit sha for the last benchmark commit -PREV=$(git log -n 1 --grep='BENCHMARK_MARKER_DO_NOT_CHANGE' | head -n 1 | awk '{print $2}') - -## Run current benchmarks - -cat >> $COMMIT_FILE <&1 | tee -a $COMMIT_FILE -pushd layers -go test --test.bench="$BENCH" 2>&1 | tee -a $COMMIT_FILE -popd -cat >> $COMMIT_FILE <&1 | tee -a $COMMIT_FILE -fi - - - -## Reset to last benchmark commit, run benchmarks - -git checkout $PREV - -cat >> $COMMIT_FILE <&1 | tee -a $COMMIT_FILE -pushd layers -go test --test.bench="$BENCH" 2>&1 | tee -a $COMMIT_FILE -popd -cat >> $COMMIT_FILE <&1 | tee -a $COMMIT_FILE -fi - - - -## Reset back to the most recent commit, edit the commit message by appending -## benchmark results. -git checkout $BRANCH -git commit --amend -F $COMMIT_FILE diff --git a/vendor/github.com/google/gopacket/layerclass.go b/vendor/github.com/google/gopacket/layerclass.go deleted file mode 100644 index 775cd09877..0000000000 --- a/vendor/github.com/google/gopacket/layerclass.go +++ /dev/null @@ -1,107 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package gopacket - -// LayerClass is a set of LayerTypes, used for grabbing one of a number of -// different types from a packet. -type LayerClass interface { - // Contains returns true if the given layer type should be considered part - // of this layer class. - Contains(LayerType) bool - // LayerTypes returns the set of all layer types in this layer class. - // Note that this may not be a fast operation on all LayerClass - // implementations. - LayerTypes() []LayerType -} - -// Contains implements LayerClass. -func (l LayerType) Contains(a LayerType) bool { - return l == a -} - -// LayerTypes implements LayerClass. -func (l LayerType) LayerTypes() []LayerType { - return []LayerType{l} -} - -// LayerClassSlice implements a LayerClass with a slice. -type LayerClassSlice []bool - -// Contains returns true if the given layer type should be considered part -// of this layer class. -func (s LayerClassSlice) Contains(t LayerType) bool { - return int(t) < len(s) && s[t] -} - -// LayerTypes returns all layer types in this LayerClassSlice. -// Because of LayerClassSlice's implementation, this could be quite slow. -func (s LayerClassSlice) LayerTypes() (all []LayerType) { - for i := 0; i < len(s); i++ { - if s[i] { - all = append(all, LayerType(i)) - } - } - return -} - -// NewLayerClassSlice creates a new LayerClassSlice by creating a slice of -// size max(types) and setting slice[t] to true for each type t. Note, if -// you implement your own LayerType and give it a high value, this WILL create -// a very large slice. -func NewLayerClassSlice(types []LayerType) LayerClassSlice { - var max LayerType - for _, typ := range types { - if typ > max { - max = typ - } - } - t := make([]bool, int(max+1)) - for _, typ := range types { - t[typ] = true - } - return t -} - -// LayerClassMap implements a LayerClass with a map. -type LayerClassMap map[LayerType]bool - -// Contains returns true if the given layer type should be considered part -// of this layer class. -func (m LayerClassMap) Contains(t LayerType) bool { - return m[t] -} - -// LayerTypes returns all layer types in this LayerClassMap. -func (m LayerClassMap) LayerTypes() (all []LayerType) { - for t := range m { - all = append(all, t) - } - return -} - -// NewLayerClassMap creates a LayerClassMap and sets map[t] to true for each -// type in types. -func NewLayerClassMap(types []LayerType) LayerClassMap { - m := LayerClassMap{} - for _, typ := range types { - m[typ] = true - } - return m -} - -// NewLayerClass creates a LayerClass, attempting to be smart about which type -// it creates based on which types are passed in. -func NewLayerClass(types []LayerType) LayerClass { - for _, typ := range types { - if typ > maxLayerType { - // NewLayerClassSlice could create a very large object, so instead create - // a map. - return NewLayerClassMap(types) - } - } - return NewLayerClassSlice(types) -} diff --git a/vendor/github.com/google/gopacket/layers/.lint_blacklist b/vendor/github.com/google/gopacket/layers/.lint_blacklist deleted file mode 100644 index fded4f6650..0000000000 --- a/vendor/github.com/google/gopacket/layers/.lint_blacklist +++ /dev/null @@ -1,39 +0,0 @@ -dot11.go -eap.go -endpoints.go -enums_generated.go -enums.go -ethernet.go -geneve.go -icmp4.go -icmp6.go -igmp.go -ip4.go -ip6.go -layertypes.go -linux_sll.go -llc.go -lldp.go -mpls.go -ndp.go -ntp.go -ospf.go -pflog.go -pppoe.go -prism.go -radiotap.go -rudp.go -sctp.go -sflow.go -tcp.go -tcpip.go -tls.go -tls_alert.go -tls_appdata.go -tls_cipherspec.go -tls_hanshake.go -tls_test.go -udp.go -udplite.go -usb.go -vrrp.go diff --git a/vendor/github.com/google/gopacket/layers/arp.go b/vendor/github.com/google/gopacket/layers/arp.go deleted file mode 100644 index 0775ac0b6d..0000000000 --- a/vendor/github.com/google/gopacket/layers/arp.go +++ /dev/null @@ -1,118 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// Copyright 2009-2011 Andreas Krennmair. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - - "github.com/google/gopacket" -) - -// Potential values for ARP.Operation. -const ( - ARPRequest = 1 - ARPReply = 2 -) - -// ARP is a ARP packet header. -type ARP struct { - BaseLayer - AddrType LinkType - Protocol EthernetType - HwAddressSize uint8 - ProtAddressSize uint8 - Operation uint16 - SourceHwAddress []byte - SourceProtAddress []byte - DstHwAddress []byte - DstProtAddress []byte -} - -// LayerType returns LayerTypeARP -func (arp *ARP) LayerType() gopacket.LayerType { return LayerTypeARP } - -// DecodeFromBytes decodes the given bytes into this layer. -func (arp *ARP) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 8 { - df.SetTruncated() - return fmt.Errorf("ARP length %d too short", len(data)) - } - arp.AddrType = LinkType(binary.BigEndian.Uint16(data[0:2])) - arp.Protocol = EthernetType(binary.BigEndian.Uint16(data[2:4])) - arp.HwAddressSize = data[4] - arp.ProtAddressSize = data[5] - arp.Operation = binary.BigEndian.Uint16(data[6:8]) - arpLength := 8 + 2*arp.HwAddressSize + 2*arp.ProtAddressSize - if len(data) < int(arpLength) { - df.SetTruncated() - return fmt.Errorf("ARP length %d too short, %d expected", len(data), arpLength) - } - arp.SourceHwAddress = data[8 : 8+arp.HwAddressSize] - arp.SourceProtAddress = data[8+arp.HwAddressSize : 8+arp.HwAddressSize+arp.ProtAddressSize] - arp.DstHwAddress = data[8+arp.HwAddressSize+arp.ProtAddressSize : 8+2*arp.HwAddressSize+arp.ProtAddressSize] - arp.DstProtAddress = data[8+2*arp.HwAddressSize+arp.ProtAddressSize : 8+2*arp.HwAddressSize+2*arp.ProtAddressSize] - - arp.Contents = data[:arpLength] - arp.Payload = data[arpLength:] - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (arp *ARP) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - size := 8 + len(arp.SourceHwAddress) + len(arp.SourceProtAddress) + len(arp.DstHwAddress) + len(arp.DstProtAddress) - bytes, err := b.PrependBytes(size) - if err != nil { - return err - } - if opts.FixLengths { - if len(arp.SourceHwAddress) != len(arp.DstHwAddress) { - return errors.New("mismatched hardware address sizes") - } - arp.HwAddressSize = uint8(len(arp.SourceHwAddress)) - if len(arp.SourceProtAddress) != len(arp.DstProtAddress) { - return errors.New("mismatched prot address sizes") - } - arp.ProtAddressSize = uint8(len(arp.SourceProtAddress)) - } - binary.BigEndian.PutUint16(bytes, uint16(arp.AddrType)) - binary.BigEndian.PutUint16(bytes[2:], uint16(arp.Protocol)) - bytes[4] = arp.HwAddressSize - bytes[5] = arp.ProtAddressSize - binary.BigEndian.PutUint16(bytes[6:], arp.Operation) - start := 8 - for _, addr := range [][]byte{ - arp.SourceHwAddress, - arp.SourceProtAddress, - arp.DstHwAddress, - arp.DstProtAddress, - } { - copy(bytes[start:], addr) - start += len(addr) - } - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (arp *ARP) CanDecode() gopacket.LayerClass { - return LayerTypeARP -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (arp *ARP) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -func decodeARP(data []byte, p gopacket.PacketBuilder) error { - - arp := &ARP{} - return decodingLayerDecoder(arp, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/asf.go b/vendor/github.com/google/gopacket/layers/asf.go deleted file mode 100644 index d698bd0e53..0000000000 --- a/vendor/github.com/google/gopacket/layers/asf.go +++ /dev/null @@ -1,166 +0,0 @@ -// Copyright 2019 The GoPacket Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style license that can be found -// in the LICENSE file in the root of the source tree. - -package layers - -// This file implements the ASF RMCP payload specified in section 3.2.2.3 of -// https://www.dmtf.org/sites/default/files/standards/documents/DSP0136.pdf - -import ( - "encoding/binary" - "fmt" - - "github.com/google/gopacket" -) - -const ( - // ASFRMCPEnterprise is the IANA-assigned Enterprise Number of the ASF-RMCP. - ASFRMCPEnterprise uint32 = 4542 -) - -// ASFDataIdentifier encapsulates fields used to uniquely identify the format of -// the data block. -// -// While the enterprise number is almost always 4542 (ASF-RMCP), we support -// registering layers using structs of this type as a key in case any users are -// using OEM-extensions. -type ASFDataIdentifier struct { - - // Enterprise is the IANA Enterprise Number associated with the entity that - // defines the message type. A list can be found at - // https://www.iana.org/assignments/enterprise-numbers/enterprise-numbers. - // This can be thought of as the namespace for the message type. - Enterprise uint32 - - // Type is the message type, defined by the entity associated with the - // enterprise above. No pressure, but in the context of EN 4542, 1 byte is - // the difference between sending a ping and telling a machine to do an - // unconditional power down (0x80 and 0x12 respectively). - Type uint8 -} - -// LayerType returns the payload layer type corresponding to an ASF message -// type. -func (a ASFDataIdentifier) LayerType() gopacket.LayerType { - if lt := asfDataLayerTypes[a]; lt != 0 { - return lt - } - - // some layer types don't have a payload, e.g. ASF-RMCP Presence Ping. - return gopacket.LayerTypePayload -} - -// RegisterASFLayerType allows specifying that the data block of ASF packets -// with a given enterprise number and type should be processed by a given layer -// type. This overrides any existing registrations, including defaults. -func RegisterASFLayerType(a ASFDataIdentifier, l gopacket.LayerType) { - asfDataLayerTypes[a] = l -} - -var ( - // ASFDataIdentifierPresencePong is the message type of the response to a - // Presence Ping message. It indicates the sender is ASF-RMCP-aware. - ASFDataIdentifierPresencePong = ASFDataIdentifier{ - Enterprise: ASFRMCPEnterprise, - Type: 0x40, - } - - // ASFDataIdentifierPresencePing is a message type sent to a managed client - // to solicit a Presence Pong response. Clients may ignore this if the RMCP - // version is unsupported. Sending this message with a sequence number <255 - // is the recommended way of finding out whether an implementation sends - // RMCP ACKs (e.g. iDRAC does, Super Micro does not). - // - // Systems implementing IPMI must respond to this ping to conform to the - // spec, so it is a good substitute for an ICMP ping. - ASFDataIdentifierPresencePing = ASFDataIdentifier{ - Enterprise: ASFRMCPEnterprise, - Type: 0x80, - } - - // asfDataLayerTypes is used to find the next layer for a given ASF header. - asfDataLayerTypes = map[ASFDataIdentifier]gopacket.LayerType{ - ASFDataIdentifierPresencePong: LayerTypeASFPresencePong, - } -) - -// ASF defines ASF's generic RMCP message Data block format. See section -// 3.2.2.3. -type ASF struct { - BaseLayer - ASFDataIdentifier - - // Tag is used to match request/response pairs. The tag of a response is set - // to that of the message it is responding to. If a message is - // unidirectional, i.e. not part of a request/response pair, this is set to - // 255. - Tag uint8 - - // 1 byte reserved, set to 0x00. - - // Length is the length of this layer's payload in bytes. - Length uint8 -} - -// LayerType returns LayerTypeASF. It partially satisfies Layer and -// SerializableLayer. -func (*ASF) LayerType() gopacket.LayerType { - return LayerTypeASF -} - -// CanDecode returns LayerTypeASF. It partially satisfies DecodingLayer. -func (a *ASF) CanDecode() gopacket.LayerClass { - return a.LayerType() -} - -// DecodeFromBytes makes the layer represent the provided bytes. It partially -// satisfies DecodingLayer. -func (a *ASF) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 8 { - df.SetTruncated() - return fmt.Errorf("invalid ASF data header, length %v less than 8", - len(data)) - } - - a.BaseLayer.Contents = data[:8] - a.BaseLayer.Payload = data[8:] - - a.Enterprise = binary.BigEndian.Uint32(data[:4]) - a.Type = uint8(data[4]) - a.Tag = uint8(data[5]) - // 1 byte reserved - a.Length = uint8(data[7]) - return nil -} - -// NextLayerType returns the layer type corresponding to the message type of -// this ASF data layer. This partially satisfies DecodingLayer. -func (a *ASF) NextLayerType() gopacket.LayerType { - return a.ASFDataIdentifier.LayerType() -} - -// SerializeTo writes the serialized fom of this layer into the SerializeBuffer, -// partially satisfying SerializableLayer. -func (a *ASF) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - payload := b.Bytes() - bytes, err := b.PrependBytes(8) - if err != nil { - return err - } - binary.BigEndian.PutUint32(bytes[:4], a.Enterprise) - bytes[4] = uint8(a.Type) - bytes[5] = a.Tag - bytes[6] = 0x00 - if opts.FixLengths { - a.Length = uint8(len(payload)) - } - bytes[7] = a.Length - return nil -} - -// decodeASF decodes the byte slice into an RMCP-ASF data struct. -func decodeASF(data []byte, p gopacket.PacketBuilder) error { - return decodingLayerDecoder(&ASF{}, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/asf_presencepong.go b/vendor/github.com/google/gopacket/layers/asf_presencepong.go deleted file mode 100644 index e9a8baf16c..0000000000 --- a/vendor/github.com/google/gopacket/layers/asf_presencepong.go +++ /dev/null @@ -1,194 +0,0 @@ -// Copyright 2019 The GoPacket Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style license that can be found -// in the LICENSE file in the root of the source tree. - -package layers - -// This file implements the RMCP ASF Presence Pong message, specified in section -// 3.2.4.3 of -// https://www.dmtf.org/sites/default/files/standards/documents/DSP0136.pdf. It -// also contains non-competing elements from IPMI v2.0, specified in section -// 13.2.4 of -// https://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/ipmi-intelligent-platform-mgt-interface-spec-2nd-gen-v2-0-spec-update.pdf. - -import ( - "encoding/binary" - "fmt" - - "github.com/google/gopacket" -) - -type ( - // ASFEntity is the type of individual entities that a Presence Pong - // response can indicate support of. The entities currently implemented by - // the spec are IPMI and ASFv1. - ASFEntity uint8 - - // ASFInteraction is the type of individual interactions that a Presence - // Pong response can indicate support for. The interactions currently - // implemented by the spec are RMCP security extensions. Although not - // specified, IPMI uses this field to indicate support for DASH, which is - // supported as well. - ASFInteraction uint8 -) - -const ( - // ASFDCMIEnterprise is the IANA-assigned Enterprise Number of the Data - // Center Manageability Interface Forum. The Presence Pong response's - // Enterprise field being set to this value indicates support for DCMI. The - // DCMI spec regards the OEM field as reserved, so these should be null. - ASFDCMIEnterprise uint32 = 36465 - - // ASFPresencePongEntityIPMI ANDs with Presence Pong's supported entities - // field if the managed system supports IPMI. - ASFPresencePongEntityIPMI ASFEntity = 1 << 7 - - // ASFPresencePongEntityASFv1 ANDs with Presence Pong's supported entities - // field if the managed system supports ASF v1.0. - ASFPresencePongEntityASFv1 ASFEntity = 1 - - // ASFPresencePongInteractionSecurityExtensions ANDs with Presence Pong's - // supported interactions field if the managed system supports RMCP v2.0 - // security extensions. See section 3.2.3. - ASFPresencePongInteractionSecurityExtensions ASFInteraction = 1 << 7 - - // ASFPresencePongInteractionDASH ANDs with Presence Pong's supported - // interactions field if the managed system supports DMTF DASH. See - // https://www.dmtf.org/standards/dash. - ASFPresencePongInteractionDASH ASFInteraction = 1 << 5 -) - -// ASFPresencePong defines the structure of a Presence Pong message's payload. -// See section 3.2.4.3. -type ASFPresencePong struct { - BaseLayer - - // Enterprise is the IANA Enterprise Number of an entity that has defined - // OEM-specific capabilities for the managed client. If no such capabilities - // exist, this is set to ASF's IANA Enterprise Number. - Enterprise uint32 - - // OEM identifies OEM-specific capabilities. Its structure is defined by the - // OEM. This is set to 0s if no OEM-specific capabilities exist. This - // implementation does not change byte order from the wire for this field. - OEM [4]byte - - // We break out entities and interactions into separate booleans as - // discovery is the entire point of this type of message, so we assume they - // are accessed. It also makes gopacket's default layer printing more - // useful. - - // IPMI is true if IPMI is supported by the managed system. There is no - // explicit version in the specification, however given the dates, this is - // assumed to be IPMI v1.0. Support for IPMI is contained in the "supported - // entities" field of the presence pong payload. - IPMI bool - - // ASFv1 indicates support for ASF v1.0. This seems somewhat redundant as - // ASF must be supported in order to receive a response. This is contained - // in the "supported entities" field of the presence pong payload. - ASFv1 bool - - // SecurityExtensions indicates support for RMCP Security Extensions, - // specified in ASF v2.0. This will always be false for v1.x - // implementations. This is contained in the "supported interactions" field - // of the presence pong payload. This field is defined in ASF v1.0, but has - // no useful value. - SecurityExtensions bool - - // DASH is true if DMTF DASH is supported. This is not specified in ASF - // v2.0, but in IPMI v2.0, however the former does not preclude it, so we - // support it. - DASH bool - - // 6 bytes reserved after the entities and interactions fields, set to 0s. -} - -// SupportsDCMI returns whether the Presence Pong message indicates support for -// the Data Center Management Interface, which is an extension of IPMI v2.0. -func (a *ASFPresencePong) SupportsDCMI() bool { - return a.Enterprise == ASFDCMIEnterprise && a.IPMI && a.ASFv1 -} - -// LayerType returns LayerTypeASFPresencePong. It partially satisfies Layer and -// SerializableLayer. -func (*ASFPresencePong) LayerType() gopacket.LayerType { - return LayerTypeASFPresencePong -} - -// CanDecode returns LayerTypeASFPresencePong. It partially satisfies -// DecodingLayer. -func (a *ASFPresencePong) CanDecode() gopacket.LayerClass { - return a.LayerType() -} - -// DecodeFromBytes makes the layer represent the provided bytes. It partially -// satisfies DecodingLayer. -func (a *ASFPresencePong) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 16 { - df.SetTruncated() - return fmt.Errorf("invalid ASF presence pong payload, length %v less than 16", - len(data)) - } - - a.BaseLayer.Contents = data[:16] - a.BaseLayer.Payload = data[16:] - - a.Enterprise = binary.BigEndian.Uint32(data[:4]) - copy(a.OEM[:], data[4:8]) // N.B. no byte order change - a.IPMI = data[8]&uint8(ASFPresencePongEntityIPMI) != 0 - a.ASFv1 = data[8]&uint8(ASFPresencePongEntityASFv1) != 0 - a.SecurityExtensions = data[9]&uint8(ASFPresencePongInteractionSecurityExtensions) != 0 - a.DASH = data[9]&uint8(ASFPresencePongInteractionDASH) != 0 - // ignore remaining 6 bytes; should be set to 0s - return nil -} - -// NextLayerType returns LayerTypePayload, as there are no further layers to -// decode. This partially satisfies DecodingLayer. -func (a *ASFPresencePong) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -// SerializeTo writes the serialized fom of this layer into the SerializeBuffer, -// partially satisfying SerializableLayer. -func (a *ASFPresencePong) SerializeTo(b gopacket.SerializeBuffer, _ gopacket.SerializeOptions) error { - bytes, err := b.PrependBytes(16) - if err != nil { - return err - } - - binary.BigEndian.PutUint32(bytes[:4], a.Enterprise) - - copy(bytes[4:8], a.OEM[:]) - - bytes[8] = 0 - if a.IPMI { - bytes[8] |= uint8(ASFPresencePongEntityIPMI) - } - if a.ASFv1 { - bytes[8] |= uint8(ASFPresencePongEntityASFv1) - } - - bytes[9] = 0 - if a.SecurityExtensions { - bytes[9] |= uint8(ASFPresencePongInteractionSecurityExtensions) - } - if a.DASH { - bytes[9] |= uint8(ASFPresencePongInteractionDASH) - } - - // zero-out remaining 6 bytes - for i := 10; i < len(bytes); i++ { - bytes[i] = 0x00 - } - - return nil -} - -// decodeASFPresencePong decodes the byte slice into an RMCP-ASF Presence Pong -// struct. -func decodeASFPresencePong(data []byte, p gopacket.PacketBuilder) error { - return decodingLayerDecoder(&ASFPresencePong{}, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/base.go b/vendor/github.com/google/gopacket/layers/base.go deleted file mode 100644 index cd59b46786..0000000000 --- a/vendor/github.com/google/gopacket/layers/base.go +++ /dev/null @@ -1,52 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "github.com/google/gopacket" -) - -// BaseLayer is a convenience struct which implements the LayerData and -// LayerPayload functions of the Layer interface. -type BaseLayer struct { - // Contents is the set of bytes that make up this layer. IE: for an - // Ethernet packet, this would be the set of bytes making up the - // Ethernet frame. - Contents []byte - // Payload is the set of bytes contained by (but not part of) this - // Layer. Again, to take Ethernet as an example, this would be the - // set of bytes encapsulated by the Ethernet protocol. - Payload []byte -} - -// LayerContents returns the bytes of the packet layer. -func (b *BaseLayer) LayerContents() []byte { return b.Contents } - -// LayerPayload returns the bytes contained within the packet layer. -func (b *BaseLayer) LayerPayload() []byte { return b.Payload } - -type layerDecodingLayer interface { - gopacket.Layer - DecodeFromBytes([]byte, gopacket.DecodeFeedback) error - NextLayerType() gopacket.LayerType -} - -func decodingLayerDecoder(d layerDecodingLayer, data []byte, p gopacket.PacketBuilder) error { - err := d.DecodeFromBytes(data, p) - if err != nil { - return err - } - p.AddLayer(d) - next := d.NextLayerType() - if next == gopacket.LayerTypeZero { - return nil - } - return p.NextDecoder(next) -} - -// hacky way to zero out memory... there must be a better way? -var lotsOfZeros [1024]byte diff --git a/vendor/github.com/google/gopacket/layers/bfd.go b/vendor/github.com/google/gopacket/layers/bfd.go deleted file mode 100644 index 43030fb6a5..0000000000 --- a/vendor/github.com/google/gopacket/layers/bfd.go +++ /dev/null @@ -1,481 +0,0 @@ -// Copyright 2017 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. -// - -package layers - -import ( - "encoding/binary" - "errors" - - "github.com/google/gopacket" -) - -// BFD Control Packet Format -// ------------------------- -// The current version of BFD's RFC (RFC 5880) contains the following -// diagram for the BFD Control packet format: -// -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// |Vers | Diag |Sta|P|F|C|A|D|M| Detect Mult | Length | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | My Discriminator | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Your Discriminator | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Desired Min TX Interval | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Required Min RX Interval | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Required Min Echo RX Interval | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// -// An optional Authentication Section MAY be present: -// -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Auth Type | Auth Len | Authentication Data... | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// -// -// Simple Password Authentication Section Format -// --------------------------------------------- -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Auth Type | Auth Len | Auth Key ID | Password... | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | ... | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// -// -// Keyed MD5 and Meticulous Keyed MD5 Authentication Section Format -// ---------------------------------------------------------------- -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Auth Type | Auth Len | Auth Key ID | Reserved | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Sequence Number | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Auth Key/Digest... | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | ... | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// -// -// Keyed SHA1 and Meticulous Keyed SHA1 Authentication Section Format -// ------------------------------------------------------------------ -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Auth Type | Auth Len | Auth Key ID | Reserved | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Sequence Number | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Auth Key/Hash... | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | ... | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// -// From https://tools.ietf.org/rfc/rfc5880.txt -const bfdMinimumRecordSizeInBytes int = 24 - -// BFDVersion represents the version as decoded from the BFD control message -type BFDVersion uint8 - -// BFDDiagnostic represents diagnostic infomation about a BFD session -type BFDDiagnostic uint8 - -// constants that define BFDDiagnostic flags -const ( - BFDDiagnosticNone BFDDiagnostic = 0 // No Diagnostic - BFDDiagnosticTimeExpired BFDDiagnostic = 1 // Control Detection Time Expired - BFDDiagnosticEchoFailed BFDDiagnostic = 2 // Echo Function Failed - BFDDiagnosticNeighborSignalDown BFDDiagnostic = 3 // Neighbor Signaled Session Down - BFDDiagnosticForwardPlaneReset BFDDiagnostic = 4 // Forwarding Plane Reset - BFDDiagnosticPathDown BFDDiagnostic = 5 // Path Down - BFDDiagnosticConcatPathDown BFDDiagnostic = 6 // Concatenated Path Down - BFDDiagnosticAdminDown BFDDiagnostic = 7 // Administratively Down - BFDDiagnosticRevConcatPathDown BFDDiagnostic = 8 // Reverse Concatenated Path Dow -) - -// String returns a string version of BFDDiagnostic -func (bd BFDDiagnostic) String() string { - switch bd { - default: - return "Unknown" - case BFDDiagnosticNone: - return "None" - case BFDDiagnosticTimeExpired: - return "Control Detection Time Expired" - case BFDDiagnosticEchoFailed: - return "Echo Function Failed" - case BFDDiagnosticNeighborSignalDown: - return "Neighbor Signaled Session Down" - case BFDDiagnosticForwardPlaneReset: - return "Forwarding Plane Reset" - case BFDDiagnosticPathDown: - return "Path Down" - case BFDDiagnosticConcatPathDown: - return "Concatenated Path Down" - case BFDDiagnosticAdminDown: - return "Administratively Down" - case BFDDiagnosticRevConcatPathDown: - return "Reverse Concatenated Path Down" - } -} - -// BFDState represents the state of a BFD session -type BFDState uint8 - -// constants that define BFDState -const ( - BFDStateAdminDown BFDState = 0 - BFDStateDown BFDState = 1 - BFDStateInit BFDState = 2 - BFDStateUp BFDState = 3 -) - -// String returns a string version of BFDState -func (s BFDState) String() string { - switch s { - default: - return "Unknown" - case BFDStateAdminDown: - return "Admin Down" - case BFDStateDown: - return "Down" - case BFDStateInit: - return "Init" - case BFDStateUp: - return "Up" - } -} - -// BFDDetectMultiplier represents the negotiated transmit interval, -// multiplied by this value, provides the Detection Time for the -// receiving system in Asynchronous mode. -type BFDDetectMultiplier uint8 - -// BFDDiscriminator is a unique, nonzero discriminator value used -// to demultiplex multiple BFD sessions between the same pair of systems. -type BFDDiscriminator uint32 - -// BFDTimeInterval represents a time interval in microseconds -type BFDTimeInterval uint32 - -// BFDAuthType represents the authentication used in the BFD session -type BFDAuthType uint8 - -// constants that define the BFDAuthType -const ( - BFDAuthTypeNone BFDAuthType = 0 // No Auth - BFDAuthTypePassword BFDAuthType = 1 // Simple Password - BFDAuthTypeKeyedMD5 BFDAuthType = 2 // Keyed MD5 - BFDAuthTypeMeticulousKeyedMD5 BFDAuthType = 3 // Meticulous Keyed MD5 - BFDAuthTypeKeyedSHA1 BFDAuthType = 4 // Keyed SHA1 - BFDAuthTypeMeticulousKeyedSHA1 BFDAuthType = 5 // Meticulous Keyed SHA1 -) - -// String returns a string version of BFDAuthType -func (at BFDAuthType) String() string { - switch at { - default: - return "Unknown" - case BFDAuthTypeNone: - return "No Authentication" - case BFDAuthTypePassword: - return "Simple Password" - case BFDAuthTypeKeyedMD5: - return "Keyed MD5" - case BFDAuthTypeMeticulousKeyedMD5: - return "Meticulous Keyed MD5" - case BFDAuthTypeKeyedSHA1: - return "Keyed SHA1" - case BFDAuthTypeMeticulousKeyedSHA1: - return "Meticulous Keyed SHA1" - } -} - -// BFDAuthKeyID represents the authentication key ID in use for -// this packet. This allows multiple keys to be active simultaneously. -type BFDAuthKeyID uint8 - -// BFDAuthSequenceNumber represents the sequence number for this packet. -// For Keyed Authentication, this value is incremented occasionally. For -// Meticulous Keyed Authentication, this value is incremented for each -// successive packet transmitted for a session. This provides protection -// against replay attacks. -type BFDAuthSequenceNumber uint32 - -// BFDAuthData represents the authentication key or digest -type BFDAuthData []byte - -// BFDAuthHeader represents authentication data used in the BFD session -type BFDAuthHeader struct { - AuthType BFDAuthType - KeyID BFDAuthKeyID - SequenceNumber BFDAuthSequenceNumber - Data BFDAuthData -} - -// Length returns the data length of the BFDAuthHeader based on the -// authentication type -func (h *BFDAuthHeader) Length() int { - switch h.AuthType { - case BFDAuthTypePassword: - return 3 + len(h.Data) - case BFDAuthTypeKeyedMD5, BFDAuthTypeMeticulousKeyedMD5: - return 8 + len(h.Data) - case BFDAuthTypeKeyedSHA1, BFDAuthTypeMeticulousKeyedSHA1: - return 8 + len(h.Data) - default: - return 0 - } -} - -// BFD represents a BFD control message packet whose payload contains -// the control information required to for a BFD session. -// -// References -// ---------- -// -// Wikipedia's BFD entry: -// https://en.wikipedia.org/wiki/Bidirectional_Forwarding_Detection -// This is the best place to get an overview of BFD. -// -// RFC 5880 "Bidirectional Forwarding Detection (BFD)" (2010) -// https://tools.ietf.org/html/rfc5880 -// This is the original BFD specification. -// -// RFC 5881 "Bidirectional Forwarding Detection (BFD) for IPv4 and IPv6 (Single Hop)" (2010) -// https://tools.ietf.org/html/rfc5881 -// Describes the use of the Bidirectional Forwarding Detection (BFD) -// protocol over IPv4 and IPv6 for single IP hops. -type BFD struct { - BaseLayer // Stores the packet bytes and payload bytes. - - Version BFDVersion // Version of the BFD protocol. - Diagnostic BFDDiagnostic // Diagnostic code for last state change - State BFDState // Current state - Poll bool // Requesting verification - Final bool // Responding to a received BFD Control packet that had the Poll (P) bit set. - ControlPlaneIndependent bool // BFD implementation does not share fate with its control plane - AuthPresent bool // Authentication Section is present and the session is to be authenticated - Demand bool // Demand mode is active - Multipoint bool // For future point-to-multipoint extensions. Must always be zero - DetectMultiplier BFDDetectMultiplier // Detection time multiplier - MyDiscriminator BFDDiscriminator // A unique, nonzero discriminator value - YourDiscriminator BFDDiscriminator // discriminator received from the remote system. - DesiredMinTxInterval BFDTimeInterval // Minimum interval, in microseconds, the local system would like to use when transmitting BFD Control packets - RequiredMinRxInterval BFDTimeInterval // Minimum interval, in microseconds, between received BFD Control packets that this system is capable of supporting - RequiredMinEchoRxInterval BFDTimeInterval // Minimum interval, in microseconds, between received BFD Echo packets that this system is capable of supporting - AuthHeader *BFDAuthHeader // Authentication data, variable length. -} - -// Length returns the data length of a BFD Control message which -// changes based on the presence and type of authentication -// contained in the message -func (d *BFD) Length() int { - if d.AuthPresent && (d.AuthHeader != nil) { - return bfdMinimumRecordSizeInBytes + d.AuthHeader.Length() - } - - return bfdMinimumRecordSizeInBytes -} - -// LayerType returns the layer type of the BFD object, which is LayerTypeBFD. -func (d *BFD) LayerType() gopacket.LayerType { - return LayerTypeBFD -} - -// decodeBFD analyses a byte slice and attempts to decode it as a BFD -// control packet -// -// If it succeeds, it loads p with information about the packet and returns nil. -// If it fails, it returns an error (non nil). -// -// This function is employed in layertypes.go to register the BFD layer. -func decodeBFD(data []byte, p gopacket.PacketBuilder) error { - - // Attempt to decode the byte slice. - d := &BFD{} - err := d.DecodeFromBytes(data, p) - if err != nil { - return err - } - - // If the decoding worked, add the layer to the packet and set it - // as the application layer too, if there isn't already one. - p.AddLayer(d) - p.SetApplicationLayer(d) - - return nil -} - -// DecodeFromBytes analyses a byte slice and attempts to decode it as a BFD -// control packet. -// -// Upon succeeds, it loads the BFD object with information about the packet -// and returns nil. -// Upon failure, it returns an error (non nil). -func (d *BFD) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - - // If the data block is too short to be a BFD record, then return an error. - if len(data) < bfdMinimumRecordSizeInBytes { - df.SetTruncated() - return errors.New("BFD packet too short") - } - - pLen := uint8(data[3]) - if len(data) != int(pLen) { - return errors.New("BFD packet length does not match") - } - - // BFD type embeds type BaseLayer which contains two fields: - // Contents is supposed to contain the bytes of the data at this level. - // Payload is supposed to contain the payload of this level. - // Here we set the baselayer to be the bytes of the BFD record. - d.BaseLayer = BaseLayer{Contents: data[:len(data)]} - - // Extract the fields from the block of bytes. - // To make sense of this, refer to the packet diagram - // above and the section on endian conventions. - - // The first few fields are all packed into the first 32 bits. Unpack them. - d.Version = BFDVersion(((data[0] & 0xE0) >> 5)) - d.Diagnostic = BFDDiagnostic(data[0] & 0x1F) - data = data[1:] - - d.State = BFDState((data[0] & 0xC0) >> 6) - d.Poll = data[0]&0x20 != 0 - d.Final = data[0]&0x10 != 0 - d.ControlPlaneIndependent = data[0]&0x08 != 0 - d.AuthPresent = data[0]&0x04 != 0 - d.Demand = data[0]&0x02 != 0 - d.Multipoint = data[0]&0x01 != 0 - data = data[1:] - - data, d.DetectMultiplier = data[1:], BFDDetectMultiplier(data[0]) - data, _ = data[1:], uint8(data[0]) // Consume length - - // The remaining fields can just be copied in big endian order. - data, d.MyDiscriminator = data[4:], BFDDiscriminator(binary.BigEndian.Uint32(data[:4])) - data, d.YourDiscriminator = data[4:], BFDDiscriminator(binary.BigEndian.Uint32(data[:4])) - data, d.DesiredMinTxInterval = data[4:], BFDTimeInterval(binary.BigEndian.Uint32(data[:4])) - data, d.RequiredMinRxInterval = data[4:], BFDTimeInterval(binary.BigEndian.Uint32(data[:4])) - data, d.RequiredMinEchoRxInterval = data[4:], BFDTimeInterval(binary.BigEndian.Uint32(data[:4])) - - if d.AuthPresent && (len(data) > 2) { - d.AuthHeader = &BFDAuthHeader{} - data, d.AuthHeader.AuthType = data[1:], BFDAuthType(data[0]) - data, _ = data[1:], uint8(data[0]) // Consume length - data, d.AuthHeader.KeyID = data[1:], BFDAuthKeyID(data[0]) - - switch d.AuthHeader.AuthType { - case BFDAuthTypePassword: - d.AuthHeader.Data = BFDAuthData(data) - case BFDAuthTypeKeyedMD5, BFDAuthTypeMeticulousKeyedMD5: - // Skipped reserved byte - data, d.AuthHeader.SequenceNumber = data[5:], BFDAuthSequenceNumber(binary.BigEndian.Uint32(data[1:5])) - d.AuthHeader.Data = BFDAuthData(data) - case BFDAuthTypeKeyedSHA1, BFDAuthTypeMeticulousKeyedSHA1: - // Skipped reserved byte - data, d.AuthHeader.SequenceNumber = data[5:], BFDAuthSequenceNumber(binary.BigEndian.Uint32(data[1:5])) - d.AuthHeader.Data = BFDAuthData(data) - } - } - - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (d *BFD) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - data, err := b.PrependBytes(bfdMinimumRecordSizeInBytes) - if err != nil { - return err - } - - // Pack the first few fields into the first 32 bits. - data[0] = byte(byte(d.Version<<5) | byte(d.Diagnostic)) - h := uint8(0) - h |= (uint8(d.State) << 6) - h |= (uint8(bool2uint8(d.Poll)) << 5) - h |= (uint8(bool2uint8(d.Final)) << 4) - h |= (uint8(bool2uint8(d.ControlPlaneIndependent)) << 3) - h |= (uint8(bool2uint8(d.AuthPresent)) << 2) - h |= (uint8(bool2uint8(d.Demand)) << 1) - h |= uint8(bool2uint8(d.Multipoint)) - data[1] = byte(h) - data[2] = byte(d.DetectMultiplier) - data[3] = byte(d.Length()) - - // The remaining fields can just be copied in big endian order. - binary.BigEndian.PutUint32(data[4:], uint32(d.MyDiscriminator)) - binary.BigEndian.PutUint32(data[8:], uint32(d.YourDiscriminator)) - binary.BigEndian.PutUint32(data[12:], uint32(d.DesiredMinTxInterval)) - binary.BigEndian.PutUint32(data[16:], uint32(d.RequiredMinRxInterval)) - binary.BigEndian.PutUint32(data[20:], uint32(d.RequiredMinEchoRxInterval)) - - if d.AuthPresent && (d.AuthHeader != nil) { - auth, err := b.AppendBytes(int(d.AuthHeader.Length())) - if err != nil { - return err - } - - auth[0] = byte(d.AuthHeader.AuthType) - auth[1] = byte(d.AuthHeader.Length()) - auth[2] = byte(d.AuthHeader.KeyID) - - switch d.AuthHeader.AuthType { - case BFDAuthTypePassword: - copy(auth[3:], d.AuthHeader.Data) - case BFDAuthTypeKeyedMD5, BFDAuthTypeMeticulousKeyedMD5: - auth[3] = byte(0) - binary.BigEndian.PutUint32(auth[4:], uint32(d.AuthHeader.SequenceNumber)) - copy(auth[8:], d.AuthHeader.Data) - case BFDAuthTypeKeyedSHA1, BFDAuthTypeMeticulousKeyedSHA1: - auth[3] = byte(0) - binary.BigEndian.PutUint32(auth[4:], uint32(d.AuthHeader.SequenceNumber)) - copy(auth[8:], d.AuthHeader.Data) - } - } - - return nil -} - -// CanDecode returns a set of layers that BFD objects can decode. -// As BFD objects can only decide the BFD layer, we can return just that layer. -// Apparently a single layer type implements LayerClass. -func (d *BFD) CanDecode() gopacket.LayerClass { - return LayerTypeBFD -} - -// NextLayerType specifies the next layer that GoPacket should attempt to -// analyse after this (BFD) layer. As BFD packets do not contain any payload -// bytes, there are no further layers to analyse. -func (d *BFD) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypeZero -} - -// Payload returns an empty byte slice as BFD packets do not carry a payload -func (d *BFD) Payload() []byte { - return nil -} - -// bool2uint8 converts a bool to uint8 -func bool2uint8(b bool) uint8 { - if b { - return 1 - } - return 0 -} diff --git a/vendor/github.com/google/gopacket/layers/cdp.go b/vendor/github.com/google/gopacket/layers/cdp.go deleted file mode 100644 index 095f926125..0000000000 --- a/vendor/github.com/google/gopacket/layers/cdp.go +++ /dev/null @@ -1,659 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -// Enum types courtesy of... -// http://search.cpan.org/~mchapman/Net-CDP-0.09/lib/Net/CDP.pm -// https://code.google.com/p/ladvd/ -// http://anonsvn.wireshark.org/viewvc/releases/wireshark-1.8.6/epan/dissectors/packet-cdp.c - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - "net" - - "github.com/google/gopacket" -) - -// CDPTLVType is the type of each TLV value in a CiscoDiscovery packet. -type CDPTLVType uint16 - -// CDPTLVType values. -const ( - CDPTLVDevID CDPTLVType = 0x0001 - CDPTLVAddress CDPTLVType = 0x0002 - CDPTLVPortID CDPTLVType = 0x0003 - CDPTLVCapabilities CDPTLVType = 0x0004 - CDPTLVVersion CDPTLVType = 0x0005 - CDPTLVPlatform CDPTLVType = 0x0006 - CDPTLVIPPrefix CDPTLVType = 0x0007 - CDPTLVHello CDPTLVType = 0x0008 - CDPTLVVTPDomain CDPTLVType = 0x0009 - CDPTLVNativeVLAN CDPTLVType = 0x000a - CDPTLVFullDuplex CDPTLVType = 0x000b - CDPTLVVLANReply CDPTLVType = 0x000e - CDPTLVVLANQuery CDPTLVType = 0x000f - CDPTLVPower CDPTLVType = 0x0010 - CDPTLVMTU CDPTLVType = 0x0011 - CDPTLVExtendedTrust CDPTLVType = 0x0012 - CDPTLVUntrustedCOS CDPTLVType = 0x0013 - CDPTLVSysName CDPTLVType = 0x0014 - CDPTLVSysOID CDPTLVType = 0x0015 - CDPTLVMgmtAddresses CDPTLVType = 0x0016 - CDPTLVLocation CDPTLVType = 0x0017 - CDPTLVExternalPortID CDPTLVType = 0x0018 - CDPTLVPowerRequested CDPTLVType = 0x0019 - CDPTLVPowerAvailable CDPTLVType = 0x001a - CDPTLVPortUnidirectional CDPTLVType = 0x001b - CDPTLVEnergyWise CDPTLVType = 0x001d - CDPTLVSparePairPOE CDPTLVType = 0x001f -) - -// CiscoDiscoveryValue is a TLV value inside a CiscoDiscovery packet layer. -type CiscoDiscoveryValue struct { - Type CDPTLVType - Length uint16 - Value []byte -} - -// CiscoDiscovery is a packet layer containing the Cisco Discovery Protocol. -// See http://www.cisco.com/univercd/cc/td/doc/product/lan/trsrb/frames.htm#31885 -type CiscoDiscovery struct { - BaseLayer - Version byte - TTL byte - Checksum uint16 - Values []CiscoDiscoveryValue -} - -// CDPCapability is the set of capabilities advertised by a CDP device. -type CDPCapability uint32 - -// CDPCapability values. -const ( - CDPCapMaskRouter CDPCapability = 0x0001 - CDPCapMaskTBBridge CDPCapability = 0x0002 - CDPCapMaskSPBridge CDPCapability = 0x0004 - CDPCapMaskSwitch CDPCapability = 0x0008 - CDPCapMaskHost CDPCapability = 0x0010 - CDPCapMaskIGMPFilter CDPCapability = 0x0020 - CDPCapMaskRepeater CDPCapability = 0x0040 - CDPCapMaskPhone CDPCapability = 0x0080 - CDPCapMaskRemote CDPCapability = 0x0100 -) - -// CDPCapabilities represents the capabilities of a device -type CDPCapabilities struct { - L3Router bool - TBBridge bool - SPBridge bool - L2Switch bool - IsHost bool - IGMPFilter bool - L1Repeater bool - IsPhone bool - RemotelyManaged bool -} - -// CDP Power-over-Ethernet values. -const ( - CDPPoEFourWire byte = 0x01 - CDPPoEPDArch byte = 0x02 - CDPPoEPDRequest byte = 0x04 - CDPPoEPSE byte = 0x08 -) - -// CDPSparePairPoE provides information on PoE. -type CDPSparePairPoE struct { - PSEFourWire bool // Supported / Not supported - PDArchShared bool // Shared / Independent - PDRequestOn bool // On / Off - PSEOn bool // On / Off -} - -// CDPVLANDialogue encapsulates a VLAN Query/Reply -type CDPVLANDialogue struct { - ID uint8 - VLAN uint16 -} - -// CDPPowerDialogue encapsulates a Power Query/Reply -type CDPPowerDialogue struct { - ID uint16 - MgmtID uint16 - Values []uint32 -} - -// CDPLocation provides location information for a CDP device. -type CDPLocation struct { - Type uint8 // Undocumented - Location string -} - -// CDPHello is a Cisco Hello message (undocumented, hence the "Unknown" fields) -type CDPHello struct { - OUI []byte - ProtocolID uint16 - ClusterMaster net.IP - Unknown1 net.IP - Version byte - SubVersion byte - Status byte - Unknown2 byte - ClusterCommander net.HardwareAddr - SwitchMAC net.HardwareAddr - Unknown3 byte - ManagementVLAN uint16 -} - -// CDPEnergyWiseSubtype is used within CDP to define TLV values. -type CDPEnergyWiseSubtype uint32 - -// CDPEnergyWiseSubtype values. -const ( - CDPEnergyWiseRole CDPEnergyWiseSubtype = 0x00000007 - CDPEnergyWiseDomain CDPEnergyWiseSubtype = 0x00000008 - CDPEnergyWiseName CDPEnergyWiseSubtype = 0x00000009 - CDPEnergyWiseReplyTo CDPEnergyWiseSubtype = 0x00000017 -) - -// CDPEnergyWise is used by CDP to monitor and control power usage. -type CDPEnergyWise struct { - EncryptedData []byte - Unknown1 uint32 - SequenceNumber uint32 - ModelNumber string - Unknown2 uint16 - HardwareID string - SerialNum string - Unknown3 []byte - Role string - Domain string - Name string - ReplyUnknown1 []byte - ReplyPort []byte - ReplyAddress []byte - ReplyUnknown2 []byte - ReplyUnknown3 []byte -} - -// CiscoDiscoveryInfo represents the decoded details for a set of CiscoDiscoveryValues -type CiscoDiscoveryInfo struct { - BaseLayer - CDPHello - DeviceID string - Addresses []net.IP - PortID string - Capabilities CDPCapabilities - Version string - Platform string - IPPrefixes []net.IPNet - VTPDomain string - NativeVLAN uint16 - FullDuplex bool - VLANReply CDPVLANDialogue - VLANQuery CDPVLANDialogue - PowerConsumption uint16 - MTU uint32 - ExtendedTrust uint8 - UntrustedCOS uint8 - SysName string - SysOID string - MgmtAddresses []net.IP - Location CDPLocation - PowerRequest CDPPowerDialogue - PowerAvailable CDPPowerDialogue - SparePairPoe CDPSparePairPoE - EnergyWise CDPEnergyWise - Unknown []CiscoDiscoveryValue -} - -// LayerType returns gopacket.LayerTypeCiscoDiscovery. -func (c *CiscoDiscovery) LayerType() gopacket.LayerType { - return LayerTypeCiscoDiscovery -} - -func decodeCiscoDiscovery(data []byte, p gopacket.PacketBuilder) error { - c := &CiscoDiscovery{ - Version: data[0], - TTL: data[1], - Checksum: binary.BigEndian.Uint16(data[2:4]), - } - if c.Version != 1 && c.Version != 2 { - return fmt.Errorf("Invalid CiscoDiscovery version number %d", c.Version) - } - var err error - c.Values, err = decodeCiscoDiscoveryTLVs(data[4:], p) - if err != nil { - return err - } - c.Contents = data[0:4] - c.Payload = data[4:] - p.AddLayer(c) - return p.NextDecoder(gopacket.DecodeFunc(decodeCiscoDiscoveryInfo)) -} - -// LayerType returns gopacket.LayerTypeCiscoDiscoveryInfo. -func (c *CiscoDiscoveryInfo) LayerType() gopacket.LayerType { - return LayerTypeCiscoDiscoveryInfo -} - -func decodeCiscoDiscoveryTLVs(data []byte, p gopacket.PacketBuilder) (values []CiscoDiscoveryValue, err error) { - for len(data) > 0 { - if len(data) < 4 { - p.SetTruncated() - return nil, errors.New("CDP TLV < 4 bytes") - } - val := CiscoDiscoveryValue{ - Type: CDPTLVType(binary.BigEndian.Uint16(data[:2])), - Length: binary.BigEndian.Uint16(data[2:4]), - } - if val.Length < 4 { - err = fmt.Errorf("Invalid CiscoDiscovery value length %d", val.Length) - break - } else if len(data) < int(val.Length) { - p.SetTruncated() - return nil, fmt.Errorf("CDP TLV < length %d", val.Length) - } - val.Value = data[4:val.Length] - values = append(values, val) - data = data[val.Length:] - } - return -} - -func decodeCiscoDiscoveryInfo(data []byte, p gopacket.PacketBuilder) error { - var err error - info := &CiscoDiscoveryInfo{BaseLayer: BaseLayer{Contents: data}} - p.AddLayer(info) - values, err := decodeCiscoDiscoveryTLVs(data, p) - if err != nil { // Unlikely, as parent decode will fail, but better safe... - return err - } - for _, val := range values { - switch val.Type { - case CDPTLVDevID: - info.DeviceID = string(val.Value) - case CDPTLVAddress: - if err = checkCDPTLVLen(val, 4); err != nil { - return err - } - info.Addresses, err = decodeAddresses(val.Value) - if err != nil { - return err - } - case CDPTLVPortID: - info.PortID = string(val.Value) - case CDPTLVCapabilities: - if err = checkCDPTLVLen(val, 4); err != nil { - return err - } - val := CDPCapability(binary.BigEndian.Uint32(val.Value[0:4])) - info.Capabilities.L3Router = (val&CDPCapMaskRouter > 0) - info.Capabilities.TBBridge = (val&CDPCapMaskTBBridge > 0) - info.Capabilities.SPBridge = (val&CDPCapMaskSPBridge > 0) - info.Capabilities.L2Switch = (val&CDPCapMaskSwitch > 0) - info.Capabilities.IsHost = (val&CDPCapMaskHost > 0) - info.Capabilities.IGMPFilter = (val&CDPCapMaskIGMPFilter > 0) - info.Capabilities.L1Repeater = (val&CDPCapMaskRepeater > 0) - info.Capabilities.IsPhone = (val&CDPCapMaskPhone > 0) - info.Capabilities.RemotelyManaged = (val&CDPCapMaskRemote > 0) - case CDPTLVVersion: - info.Version = string(val.Value) - case CDPTLVPlatform: - info.Platform = string(val.Value) - case CDPTLVIPPrefix: - v := val.Value - l := len(v) - if l%5 == 0 && l >= 5 { - for len(v) > 0 { - _, ipnet, _ := net.ParseCIDR(fmt.Sprintf("%d.%d.%d.%d/%d", v[0], v[1], v[2], v[3], v[4])) - info.IPPrefixes = append(info.IPPrefixes, *ipnet) - v = v[5:] - } - } else { - return fmt.Errorf("Invalid TLV %v length %d", val.Type, len(val.Value)) - } - case CDPTLVHello: - if err = checkCDPTLVLen(val, 32); err != nil { - return err - } - v := val.Value - info.CDPHello.OUI = v[0:3] - info.CDPHello.ProtocolID = binary.BigEndian.Uint16(v[3:5]) - info.CDPHello.ClusterMaster = v[5:9] - info.CDPHello.Unknown1 = v[9:13] - info.CDPHello.Version = v[13] - info.CDPHello.SubVersion = v[14] - info.CDPHello.Status = v[15] - info.CDPHello.Unknown2 = v[16] - info.CDPHello.ClusterCommander = v[17:23] - info.CDPHello.SwitchMAC = v[23:29] - info.CDPHello.Unknown3 = v[29] - info.CDPHello.ManagementVLAN = binary.BigEndian.Uint16(v[30:32]) - case CDPTLVVTPDomain: - info.VTPDomain = string(val.Value) - case CDPTLVNativeVLAN: - if err = checkCDPTLVLen(val, 2); err != nil { - return err - } - info.NativeVLAN = binary.BigEndian.Uint16(val.Value[0:2]) - case CDPTLVFullDuplex: - if err = checkCDPTLVLen(val, 1); err != nil { - return err - } - info.FullDuplex = (val.Value[0] == 1) - case CDPTLVVLANReply: - if err = checkCDPTLVLen(val, 3); err != nil { - return err - } - info.VLANReply.ID = uint8(val.Value[0]) - info.VLANReply.VLAN = binary.BigEndian.Uint16(val.Value[1:3]) - case CDPTLVVLANQuery: - if err = checkCDPTLVLen(val, 3); err != nil { - return err - } - info.VLANQuery.ID = uint8(val.Value[0]) - info.VLANQuery.VLAN = binary.BigEndian.Uint16(val.Value[1:3]) - case CDPTLVPower: - if err = checkCDPTLVLen(val, 2); err != nil { - return err - } - info.PowerConsumption = binary.BigEndian.Uint16(val.Value[0:2]) - case CDPTLVMTU: - if err = checkCDPTLVLen(val, 4); err != nil { - return err - } - info.MTU = binary.BigEndian.Uint32(val.Value[0:4]) - case CDPTLVExtendedTrust: - if err = checkCDPTLVLen(val, 1); err != nil { - return err - } - info.ExtendedTrust = uint8(val.Value[0]) - case CDPTLVUntrustedCOS: - if err = checkCDPTLVLen(val, 1); err != nil { - return err - } - info.UntrustedCOS = uint8(val.Value[0]) - case CDPTLVSysName: - info.SysName = string(val.Value) - case CDPTLVSysOID: - info.SysOID = string(val.Value) - case CDPTLVMgmtAddresses: - if err = checkCDPTLVLen(val, 4); err != nil { - return err - } - info.MgmtAddresses, err = decodeAddresses(val.Value) - if err != nil { - return err - } - case CDPTLVLocation: - if err = checkCDPTLVLen(val, 2); err != nil { - return err - } - info.Location.Type = uint8(val.Value[0]) - info.Location.Location = string(val.Value[1:]) - - // case CDPTLVLExternalPortID: - // Undocumented - case CDPTLVPowerRequested: - if err = checkCDPTLVLen(val, 4); err != nil { - return err - } - info.PowerRequest.ID = binary.BigEndian.Uint16(val.Value[0:2]) - info.PowerRequest.MgmtID = binary.BigEndian.Uint16(val.Value[2:4]) - for n := 4; n < len(val.Value); n += 4 { - info.PowerRequest.Values = append(info.PowerRequest.Values, binary.BigEndian.Uint32(val.Value[n:n+4])) - } - case CDPTLVPowerAvailable: - if err = checkCDPTLVLen(val, 4); err != nil { - return err - } - info.PowerAvailable.ID = binary.BigEndian.Uint16(val.Value[0:2]) - info.PowerAvailable.MgmtID = binary.BigEndian.Uint16(val.Value[2:4]) - for n := 4; n < len(val.Value); n += 4 { - info.PowerAvailable.Values = append(info.PowerAvailable.Values, binary.BigEndian.Uint32(val.Value[n:n+4])) - } - // case CDPTLVPortUnidirectional - // Undocumented - case CDPTLVEnergyWise: - if err = checkCDPTLVLen(val, 72); err != nil { - return err - } - info.EnergyWise.EncryptedData = val.Value[0:20] - info.EnergyWise.Unknown1 = binary.BigEndian.Uint32(val.Value[20:24]) - info.EnergyWise.SequenceNumber = binary.BigEndian.Uint32(val.Value[24:28]) - info.EnergyWise.ModelNumber = string(val.Value[28:44]) - info.EnergyWise.Unknown2 = binary.BigEndian.Uint16(val.Value[44:46]) - info.EnergyWise.HardwareID = string(val.Value[46:49]) - info.EnergyWise.SerialNum = string(val.Value[49:60]) - info.EnergyWise.Unknown3 = val.Value[60:68] - tlvLen := binary.BigEndian.Uint16(val.Value[68:70]) - tlvNum := binary.BigEndian.Uint16(val.Value[70:72]) - data := val.Value[72:] - if len(data) < int(tlvLen) { - return fmt.Errorf("Invalid TLV length %d vs %d", tlvLen, len(data)) - } - numSeen := 0 - for len(data) > 8 { - numSeen++ - if numSeen > int(tlvNum) { // Too many TLV's ? - return fmt.Errorf("Too many TLV's - wanted %d, saw %d", tlvNum, numSeen) - } - tType := CDPEnergyWiseSubtype(binary.BigEndian.Uint32(data[0:4])) - tLen := int(binary.BigEndian.Uint32(data[4:8])) - if tLen > len(data)-8 { - return fmt.Errorf("Invalid TLV length %d vs %d", tLen, len(data)-8) - } - data = data[8:] - switch tType { - case CDPEnergyWiseRole: - info.EnergyWise.Role = string(data[:]) - case CDPEnergyWiseDomain: - info.EnergyWise.Domain = string(data[:]) - case CDPEnergyWiseName: - info.EnergyWise.Name = string(data[:]) - case CDPEnergyWiseReplyTo: - if len(data) >= 18 { - info.EnergyWise.ReplyUnknown1 = data[0:2] - info.EnergyWise.ReplyPort = data[2:4] - info.EnergyWise.ReplyAddress = data[4:8] - info.EnergyWise.ReplyUnknown2 = data[8:10] - info.EnergyWise.ReplyUnknown3 = data[10:14] - } - } - data = data[tLen:] - } - case CDPTLVSparePairPOE: - if err = checkCDPTLVLen(val, 1); err != nil { - return err - } - v := val.Value[0] - info.SparePairPoe.PSEFourWire = (v&CDPPoEFourWire > 0) - info.SparePairPoe.PDArchShared = (v&CDPPoEPDArch > 0) - info.SparePairPoe.PDRequestOn = (v&CDPPoEPDRequest > 0) - info.SparePairPoe.PSEOn = (v&CDPPoEPSE > 0) - default: - info.Unknown = append(info.Unknown, val) - } - } - return nil -} - -// CDP Protocol Types -const ( - CDPProtocolTypeNLPID byte = 1 - CDPProtocolType802_2 byte = 2 -) - -// CDPAddressType is used to define TLV values within CDP addresses. -type CDPAddressType uint64 - -// CDP Address types. -const ( - CDPAddressTypeCLNP CDPAddressType = 0x81 - CDPAddressTypeIPV4 CDPAddressType = 0xcc - CDPAddressTypeIPV6 CDPAddressType = 0xaaaa030000000800 - CDPAddressTypeDECNET CDPAddressType = 0xaaaa030000006003 - CDPAddressTypeAPPLETALK CDPAddressType = 0xaaaa03000000809b - CDPAddressTypeIPX CDPAddressType = 0xaaaa030000008137 - CDPAddressTypeVINES CDPAddressType = 0xaaaa0300000080c4 - CDPAddressTypeXNS CDPAddressType = 0xaaaa030000000600 - CDPAddressTypeAPOLLO CDPAddressType = 0xaaaa030000008019 -) - -func decodeAddresses(v []byte) (addresses []net.IP, err error) { - numaddr := int(binary.BigEndian.Uint32(v[0:4])) - if numaddr < 1 { - return nil, fmt.Errorf("Invalid Address TLV number %d", numaddr) - } - v = v[4:] - if len(v) < numaddr*8 { - return nil, fmt.Errorf("Invalid Address TLV length %d", len(v)) - } - for i := 0; i < numaddr; i++ { - prottype := v[0] - if prottype != CDPProtocolTypeNLPID && prottype != CDPProtocolType802_2 { // invalid protocol type - return nil, fmt.Errorf("Invalid Address Protocol %d", prottype) - } - protlen := int(v[1]) - if (prottype == CDPProtocolTypeNLPID && protlen != 1) || - (prottype == CDPProtocolType802_2 && protlen != 3 && protlen != 8) { // invalid length - return nil, fmt.Errorf("Invalid Address Protocol length %d", protlen) - } - plen := make([]byte, 8) - copy(plen[8-protlen:], v[2:2+protlen]) - protocol := CDPAddressType(binary.BigEndian.Uint64(plen)) - v = v[2+protlen:] - addrlen := binary.BigEndian.Uint16(v[0:2]) - ab := v[2 : 2+addrlen] - if protocol == CDPAddressTypeIPV4 && addrlen == 4 { - addresses = append(addresses, net.IPv4(ab[0], ab[1], ab[2], ab[3])) - } else if protocol == CDPAddressTypeIPV6 && addrlen == 16 { - addresses = append(addresses, net.IP(ab)) - } else { - // only handle IPV4 & IPV6 for now - } - v = v[2+addrlen:] - if len(v) < 8 { - break - } - } - return -} - -func (t CDPTLVType) String() (s string) { - switch t { - case CDPTLVDevID: - s = "Device ID" - case CDPTLVAddress: - s = "Addresses" - case CDPTLVPortID: - s = "Port ID" - case CDPTLVCapabilities: - s = "Capabilities" - case CDPTLVVersion: - s = "Software Version" - case CDPTLVPlatform: - s = "Platform" - case CDPTLVIPPrefix: - s = "IP Prefix" - case CDPTLVHello: - s = "Protocol Hello" - case CDPTLVVTPDomain: - s = "VTP Management Domain" - case CDPTLVNativeVLAN: - s = "Native VLAN" - case CDPTLVFullDuplex: - s = "Full Duplex" - case CDPTLVVLANReply: - s = "VoIP VLAN Reply" - case CDPTLVVLANQuery: - s = "VLANQuery" - case CDPTLVPower: - s = "Power consumption" - case CDPTLVMTU: - s = "MTU" - case CDPTLVExtendedTrust: - s = "Extended Trust Bitmap" - case CDPTLVUntrustedCOS: - s = "Untrusted Port CoS" - case CDPTLVSysName: - s = "System Name" - case CDPTLVSysOID: - s = "System OID" - case CDPTLVMgmtAddresses: - s = "Management Addresses" - case CDPTLVLocation: - s = "Location" - case CDPTLVExternalPortID: - s = "External Port ID" - case CDPTLVPowerRequested: - s = "Power Requested" - case CDPTLVPowerAvailable: - s = "Power Available" - case CDPTLVPortUnidirectional: - s = "Port Unidirectional" - case CDPTLVEnergyWise: - s = "Energy Wise" - case CDPTLVSparePairPOE: - s = "Spare Pair POE" - default: - s = "Unknown" - } - return -} - -func (a CDPAddressType) String() (s string) { - switch a { - case CDPAddressTypeCLNP: - s = "Connectionless Network Protocol" - case CDPAddressTypeIPV4: - s = "IPv4" - case CDPAddressTypeIPV6: - s = "IPv6" - case CDPAddressTypeDECNET: - s = "DECnet Phase IV" - case CDPAddressTypeAPPLETALK: - s = "Apple Talk" - case CDPAddressTypeIPX: - s = "Novell IPX" - case CDPAddressTypeVINES: - s = "Banyan VINES" - case CDPAddressTypeXNS: - s = "Xerox Network Systems" - case CDPAddressTypeAPOLLO: - s = "Apollo" - default: - s = "Unknown" - } - return -} - -func (t CDPEnergyWiseSubtype) String() (s string) { - switch t { - case CDPEnergyWiseRole: - s = "Role" - case CDPEnergyWiseDomain: - s = "Domain" - case CDPEnergyWiseName: - s = "Name" - case CDPEnergyWiseReplyTo: - s = "ReplyTo" - default: - s = "Unknown" - } - return -} - -func checkCDPTLVLen(v CiscoDiscoveryValue, l int) (err error) { - if len(v.Value) < l { - err = fmt.Errorf("Invalid TLV %v length %d", v.Type, len(v.Value)) - } - return -} diff --git a/vendor/github.com/google/gopacket/layers/ctp.go b/vendor/github.com/google/gopacket/layers/ctp.go deleted file mode 100644 index 82875845a7..0000000000 --- a/vendor/github.com/google/gopacket/layers/ctp.go +++ /dev/null @@ -1,109 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "fmt" - "github.com/google/gopacket" -) - -// EthernetCTPFunction is the function code used by the EthernetCTP protocol to identify each -// EthernetCTP layer. -type EthernetCTPFunction uint16 - -// EthernetCTPFunction values. -const ( - EthernetCTPFunctionReply EthernetCTPFunction = 1 - EthernetCTPFunctionForwardData EthernetCTPFunction = 2 -) - -// EthernetCTP implements the EthernetCTP protocol, see http://www.mit.edu/people/jhawk/ctp.html. -// We split EthernetCTP up into the top-level EthernetCTP layer, followed by zero or more -// EthernetCTPForwardData layers, followed by a final EthernetCTPReply layer. -type EthernetCTP struct { - BaseLayer - SkipCount uint16 -} - -// LayerType returns gopacket.LayerTypeEthernetCTP. -func (c *EthernetCTP) LayerType() gopacket.LayerType { - return LayerTypeEthernetCTP -} - -// EthernetCTPForwardData is the ForwardData layer inside EthernetCTP. See EthernetCTP's docs for more -// details. -type EthernetCTPForwardData struct { - BaseLayer - Function EthernetCTPFunction - ForwardAddress []byte -} - -// LayerType returns gopacket.LayerTypeEthernetCTPForwardData. -func (c *EthernetCTPForwardData) LayerType() gopacket.LayerType { - return LayerTypeEthernetCTPForwardData -} - -// ForwardEndpoint returns the EthernetCTPForwardData ForwardAddress as an endpoint. -func (c *EthernetCTPForwardData) ForwardEndpoint() gopacket.Endpoint { - return gopacket.NewEndpoint(EndpointMAC, c.ForwardAddress) -} - -// EthernetCTPReply is the Reply layer inside EthernetCTP. See EthernetCTP's docs for more details. -type EthernetCTPReply struct { - BaseLayer - Function EthernetCTPFunction - ReceiptNumber uint16 - Data []byte -} - -// LayerType returns gopacket.LayerTypeEthernetCTPReply. -func (c *EthernetCTPReply) LayerType() gopacket.LayerType { - return LayerTypeEthernetCTPReply -} - -// Payload returns the EthernetCTP reply's Data bytes. -func (c *EthernetCTPReply) Payload() []byte { return c.Data } - -func decodeEthernetCTP(data []byte, p gopacket.PacketBuilder) error { - c := &EthernetCTP{ - SkipCount: binary.LittleEndian.Uint16(data[:2]), - BaseLayer: BaseLayer{data[:2], data[2:]}, - } - if c.SkipCount%2 != 0 { - return fmt.Errorf("EthernetCTP skip count is odd: %d", c.SkipCount) - } - p.AddLayer(c) - return p.NextDecoder(gopacket.DecodeFunc(decodeEthernetCTPFromFunctionType)) -} - -// decodeEthernetCTPFromFunctionType reads in the first 2 bytes to determine the EthernetCTP -// layer type to decode next, then decodes based on that. -func decodeEthernetCTPFromFunctionType(data []byte, p gopacket.PacketBuilder) error { - function := EthernetCTPFunction(binary.LittleEndian.Uint16(data[:2])) - switch function { - case EthernetCTPFunctionReply: - reply := &EthernetCTPReply{ - Function: function, - ReceiptNumber: binary.LittleEndian.Uint16(data[2:4]), - Data: data[4:], - BaseLayer: BaseLayer{data, nil}, - } - p.AddLayer(reply) - p.SetApplicationLayer(reply) - return nil - case EthernetCTPFunctionForwardData: - forward := &EthernetCTPForwardData{ - Function: function, - ForwardAddress: data[2:8], - BaseLayer: BaseLayer{data[:8], data[8:]}, - } - p.AddLayer(forward) - return p.NextDecoder(gopacket.DecodeFunc(decodeEthernetCTPFromFunctionType)) - } - return fmt.Errorf("Unknown EthernetCTP function type %v", function) -} diff --git a/vendor/github.com/google/gopacket/layers/dhcpv4.go b/vendor/github.com/google/gopacket/layers/dhcpv4.go deleted file mode 100644 index d79c591504..0000000000 --- a/vendor/github.com/google/gopacket/layers/dhcpv4.go +++ /dev/null @@ -1,592 +0,0 @@ -// Copyright 2016 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "bytes" - "encoding/binary" - "fmt" - "net" - - "github.com/google/gopacket" -) - -// DHCPOp rerprents a bootp operation -type DHCPOp byte - -// bootp operations -const ( - DHCPOpRequest DHCPOp = 1 - DHCPOpReply DHCPOp = 2 -) - -// String returns a string version of a DHCPOp. -func (o DHCPOp) String() string { - switch o { - case DHCPOpRequest: - return "Request" - case DHCPOpReply: - return "Reply" - default: - return "Unknown" - } -} - -// DHCPMsgType represents a DHCP operation -type DHCPMsgType byte - -// Constants that represent DHCP operations -const ( - DHCPMsgTypeUnspecified DHCPMsgType = iota - DHCPMsgTypeDiscover - DHCPMsgTypeOffer - DHCPMsgTypeRequest - DHCPMsgTypeDecline - DHCPMsgTypeAck - DHCPMsgTypeNak - DHCPMsgTypeRelease - DHCPMsgTypeInform -) - -// String returns a string version of a DHCPMsgType. -func (o DHCPMsgType) String() string { - switch o { - case DHCPMsgTypeUnspecified: - return "Unspecified" - case DHCPMsgTypeDiscover: - return "Discover" - case DHCPMsgTypeOffer: - return "Offer" - case DHCPMsgTypeRequest: - return "Request" - case DHCPMsgTypeDecline: - return "Decline" - case DHCPMsgTypeAck: - return "Ack" - case DHCPMsgTypeNak: - return "Nak" - case DHCPMsgTypeRelease: - return "Release" - case DHCPMsgTypeInform: - return "Inform" - default: - return "Unknown" - } -} - -//DHCPMagic is the RFC 2131 "magic cooke" for DHCP. -var DHCPMagic uint32 = 0x63825363 - -// DHCPv4 contains data for a single DHCP packet. -type DHCPv4 struct { - BaseLayer - Operation DHCPOp - HardwareType LinkType - HardwareLen uint8 - HardwareOpts uint8 - Xid uint32 - Secs uint16 - Flags uint16 - ClientIP net.IP - YourClientIP net.IP - NextServerIP net.IP - RelayAgentIP net.IP - ClientHWAddr net.HardwareAddr - ServerName []byte - File []byte - Options DHCPOptions -} - -// DHCPOptions is used to get nicely printed option lists which would normally -// be cut off after 5 options. -type DHCPOptions []DHCPOption - -// String returns a string version of the options list. -func (o DHCPOptions) String() string { - buf := &bytes.Buffer{} - buf.WriteByte('[') - for i, opt := range o { - buf.WriteString(opt.String()) - if i+1 != len(o) { - buf.WriteString(", ") - } - } - buf.WriteByte(']') - return buf.String() -} - -// LayerType returns gopacket.LayerTypeDHCPv4 -func (d *DHCPv4) LayerType() gopacket.LayerType { return LayerTypeDHCPv4 } - -// DecodeFromBytes decodes the given bytes into this layer. -func (d *DHCPv4) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 240 { - df.SetTruncated() - return fmt.Errorf("DHCPv4 length %d too short", len(data)) - } - d.Options = d.Options[:0] - d.Operation = DHCPOp(data[0]) - d.HardwareType = LinkType(data[1]) - d.HardwareLen = data[2] - d.HardwareOpts = data[3] - d.Xid = binary.BigEndian.Uint32(data[4:8]) - d.Secs = binary.BigEndian.Uint16(data[8:10]) - d.Flags = binary.BigEndian.Uint16(data[10:12]) - d.ClientIP = net.IP(data[12:16]) - d.YourClientIP = net.IP(data[16:20]) - d.NextServerIP = net.IP(data[20:24]) - d.RelayAgentIP = net.IP(data[24:28]) - d.ClientHWAddr = net.HardwareAddr(data[28 : 28+d.HardwareLen]) - d.ServerName = data[44:108] - d.File = data[108:236] - if binary.BigEndian.Uint32(data[236:240]) != DHCPMagic { - return InvalidMagicCookie - } - - if len(data) <= 240 { - // DHCP Packet could have no option (??) - return nil - } - - options := data[240:] - - stop := len(options) - start := 0 - for start < stop { - o := DHCPOption{} - if err := o.decode(options[start:]); err != nil { - return err - } - if o.Type == DHCPOptEnd { - break - } - d.Options = append(d.Options, o) - // Check if the option is a single byte pad - if o.Type == DHCPOptPad { - start++ - } else { - start += int(o.Length) + 2 - } - } - - d.Contents = data - - return nil -} - -// Len returns the length of a DHCPv4 packet. -func (d *DHCPv4) Len() uint16 { - n := uint16(240) - for _, o := range d.Options { - if o.Type == DHCPOptPad { - n++ - } else { - n += uint16(o.Length) + 2 - } - } - n++ // for opt end - return n -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (d *DHCPv4) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - plen := int(d.Len()) - - data, err := b.PrependBytes(plen) - if err != nil { - return err - } - - data[0] = byte(d.Operation) - data[1] = byte(d.HardwareType) - if opts.FixLengths { - d.HardwareLen = uint8(len(d.ClientHWAddr)) - } - data[2] = d.HardwareLen - data[3] = d.HardwareOpts - binary.BigEndian.PutUint32(data[4:8], d.Xid) - binary.BigEndian.PutUint16(data[8:10], d.Secs) - binary.BigEndian.PutUint16(data[10:12], d.Flags) - copy(data[12:16], d.ClientIP.To4()) - copy(data[16:20], d.YourClientIP.To4()) - copy(data[20:24], d.NextServerIP.To4()) - copy(data[24:28], d.RelayAgentIP.To4()) - copy(data[28:44], d.ClientHWAddr) - copy(data[44:108], d.ServerName) - copy(data[108:236], d.File) - binary.BigEndian.PutUint32(data[236:240], DHCPMagic) - - if len(d.Options) > 0 { - offset := 240 - for _, o := range d.Options { - if err := o.encode(data[offset:]); err != nil { - return err - } - // A pad option is only a single byte - if o.Type == DHCPOptPad { - offset++ - } else { - offset += 2 + len(o.Data) - } - } - optend := NewDHCPOption(DHCPOptEnd, nil) - if err := optend.encode(data[offset:]); err != nil { - return err - } - } - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (d *DHCPv4) CanDecode() gopacket.LayerClass { - return LayerTypeDHCPv4 -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (d *DHCPv4) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -func decodeDHCPv4(data []byte, p gopacket.PacketBuilder) error { - dhcp := &DHCPv4{} - err := dhcp.DecodeFromBytes(data, p) - if err != nil { - return err - } - p.AddLayer(dhcp) - return p.NextDecoder(gopacket.LayerTypePayload) -} - -// DHCPOpt represents a DHCP option or parameter from RFC-2132 -type DHCPOpt byte - -// Constants for the DHCPOpt options. -const ( - DHCPOptPad DHCPOpt = 0 - DHCPOptSubnetMask DHCPOpt = 1 // 4, net.IP - DHCPOptTimeOffset DHCPOpt = 2 // 4, int32 (signed seconds from UTC) - DHCPOptRouter DHCPOpt = 3 // n*4, [n]net.IP - DHCPOptTimeServer DHCPOpt = 4 // n*4, [n]net.IP - DHCPOptNameServer DHCPOpt = 5 // n*4, [n]net.IP - DHCPOptDNS DHCPOpt = 6 // n*4, [n]net.IP - DHCPOptLogServer DHCPOpt = 7 // n*4, [n]net.IP - DHCPOptCookieServer DHCPOpt = 8 // n*4, [n]net.IP - DHCPOptLPRServer DHCPOpt = 9 // n*4, [n]net.IP - DHCPOptImpressServer DHCPOpt = 10 // n*4, [n]net.IP - DHCPOptResLocServer DHCPOpt = 11 // n*4, [n]net.IP - DHCPOptHostname DHCPOpt = 12 // n, string - DHCPOptBootfileSize DHCPOpt = 13 // 2, uint16 - DHCPOptMeritDumpFile DHCPOpt = 14 // >1, string - DHCPOptDomainName DHCPOpt = 15 // n, string - DHCPOptSwapServer DHCPOpt = 16 // n*4, [n]net.IP - DHCPOptRootPath DHCPOpt = 17 // n, string - DHCPOptExtensionsPath DHCPOpt = 18 // n, string - DHCPOptIPForwarding DHCPOpt = 19 // 1, bool - DHCPOptSourceRouting DHCPOpt = 20 // 1, bool - DHCPOptPolicyFilter DHCPOpt = 21 // 8*n, [n]{net.IP/net.IP} - DHCPOptDatagramMTU DHCPOpt = 22 // 2, uint16 - DHCPOptDefaultTTL DHCPOpt = 23 // 1, byte - DHCPOptPathMTUAgingTimeout DHCPOpt = 24 // 4, uint32 - DHCPOptPathPlateuTableOption DHCPOpt = 25 // 2*n, []uint16 - DHCPOptInterfaceMTU DHCPOpt = 26 // 2, uint16 - DHCPOptAllSubsLocal DHCPOpt = 27 // 1, bool - DHCPOptBroadcastAddr DHCPOpt = 28 // 4, net.IP - DHCPOptMaskDiscovery DHCPOpt = 29 // 1, bool - DHCPOptMaskSupplier DHCPOpt = 30 // 1, bool - DHCPOptRouterDiscovery DHCPOpt = 31 // 1, bool - DHCPOptSolicitAddr DHCPOpt = 32 // 4, net.IP - DHCPOptStaticRoute DHCPOpt = 33 // n*8, [n]{net.IP/net.IP} -- note the 2nd is router not mask - DHCPOptARPTrailers DHCPOpt = 34 // 1, bool - DHCPOptARPTimeout DHCPOpt = 35 // 4, uint32 - DHCPOptEthernetEncap DHCPOpt = 36 // 1, bool - DHCPOptTCPTTL DHCPOpt = 37 // 1, byte - DHCPOptTCPKeepAliveInt DHCPOpt = 38 // 4, uint32 - DHCPOptTCPKeepAliveGarbage DHCPOpt = 39 // 1, bool - DHCPOptNISDomain DHCPOpt = 40 // n, string - DHCPOptNISServers DHCPOpt = 41 // 4*n, [n]net.IP - DHCPOptNTPServers DHCPOpt = 42 // 4*n, [n]net.IP - DHCPOptVendorOption DHCPOpt = 43 // n, [n]byte // may be encapsulated. - DHCPOptNetBIOSTCPNS DHCPOpt = 44 // 4*n, [n]net.IP - DHCPOptNetBIOSTCPDDS DHCPOpt = 45 // 4*n, [n]net.IP - DHCPOptNETBIOSTCPNodeType DHCPOpt = 46 // 1, magic byte - DHCPOptNetBIOSTCPScope DHCPOpt = 47 // n, string - DHCPOptXFontServer DHCPOpt = 48 // n, string - DHCPOptXDisplayManager DHCPOpt = 49 // n, string - DHCPOptRequestIP DHCPOpt = 50 // 4, net.IP - DHCPOptLeaseTime DHCPOpt = 51 // 4, uint32 - DHCPOptExtOptions DHCPOpt = 52 // 1, 1/2/3 - DHCPOptMessageType DHCPOpt = 53 // 1, 1-7 - DHCPOptServerID DHCPOpt = 54 // 4, net.IP - DHCPOptParamsRequest DHCPOpt = 55 // n, []byte - DHCPOptMessage DHCPOpt = 56 // n, 3 - DHCPOptMaxMessageSize DHCPOpt = 57 // 2, uint16 - DHCPOptT1 DHCPOpt = 58 // 4, uint32 - DHCPOptT2 DHCPOpt = 59 // 4, uint32 - DHCPOptClassID DHCPOpt = 60 // n, []byte - DHCPOptClientID DHCPOpt = 61 // n >= 2, []byte - DHCPOptDomainSearch DHCPOpt = 119 // n, string - DHCPOptSIPServers DHCPOpt = 120 // n, url - DHCPOptClasslessStaticRoute DHCPOpt = 121 // - DHCPOptEnd DHCPOpt = 255 -) - -// String returns a string version of a DHCPOpt. -func (o DHCPOpt) String() string { - switch o { - case DHCPOptPad: - return "(padding)" - case DHCPOptSubnetMask: - return "SubnetMask" - case DHCPOptTimeOffset: - return "TimeOffset" - case DHCPOptRouter: - return "Router" - case DHCPOptTimeServer: - return "rfc868" // old time server protocol stringified to dissuade confusion w. NTP - case DHCPOptNameServer: - return "ien116" // obscure nameserver protocol stringified to dissuade confusion w. DNS - case DHCPOptDNS: - return "DNS" - case DHCPOptLogServer: - return "mitLCS" // MIT LCS server protocol yada yada w. Syslog - case DHCPOptCookieServer: - return "CookieServer" - case DHCPOptLPRServer: - return "LPRServer" - case DHCPOptImpressServer: - return "ImpressServer" - case DHCPOptResLocServer: - return "ResourceLocationServer" - case DHCPOptHostname: - return "Hostname" - case DHCPOptBootfileSize: - return "BootfileSize" - case DHCPOptMeritDumpFile: - return "MeritDumpFile" - case DHCPOptDomainName: - return "DomainName" - case DHCPOptSwapServer: - return "SwapServer" - case DHCPOptRootPath: - return "RootPath" - case DHCPOptExtensionsPath: - return "ExtensionsPath" - case DHCPOptIPForwarding: - return "IPForwarding" - case DHCPOptSourceRouting: - return "SourceRouting" - case DHCPOptPolicyFilter: - return "PolicyFilter" - case DHCPOptDatagramMTU: - return "DatagramMTU" - case DHCPOptDefaultTTL: - return "DefaultTTL" - case DHCPOptPathMTUAgingTimeout: - return "PathMTUAgingTimeout" - case DHCPOptPathPlateuTableOption: - return "PathPlateuTableOption" - case DHCPOptInterfaceMTU: - return "InterfaceMTU" - case DHCPOptAllSubsLocal: - return "AllSubsLocal" - case DHCPOptBroadcastAddr: - return "BroadcastAddress" - case DHCPOptMaskDiscovery: - return "MaskDiscovery" - case DHCPOptMaskSupplier: - return "MaskSupplier" - case DHCPOptRouterDiscovery: - return "RouterDiscovery" - case DHCPOptSolicitAddr: - return "SolicitAddr" - case DHCPOptStaticRoute: - return "StaticRoute" - case DHCPOptARPTrailers: - return "ARPTrailers" - case DHCPOptARPTimeout: - return "ARPTimeout" - case DHCPOptEthernetEncap: - return "EthernetEncap" - case DHCPOptTCPTTL: - return "TCPTTL" - case DHCPOptTCPKeepAliveInt: - return "TCPKeepAliveInt" - case DHCPOptTCPKeepAliveGarbage: - return "TCPKeepAliveGarbage" - case DHCPOptNISDomain: - return "NISDomain" - case DHCPOptNISServers: - return "NISServers" - case DHCPOptNTPServers: - return "NTPServers" - case DHCPOptVendorOption: - return "VendorOption" - case DHCPOptNetBIOSTCPNS: - return "NetBIOSOverTCPNS" - case DHCPOptNetBIOSTCPDDS: - return "NetBiosOverTCPDDS" - case DHCPOptNETBIOSTCPNodeType: - return "NetBIOSOverTCPNodeType" - case DHCPOptNetBIOSTCPScope: - return "NetBIOSOverTCPScope" - case DHCPOptXFontServer: - return "XFontServer" - case DHCPOptXDisplayManager: - return "XDisplayManager" - case DHCPOptEnd: - return "(end)" - case DHCPOptSIPServers: - return "SipServers" - case DHCPOptRequestIP: - return "RequestIP" - case DHCPOptLeaseTime: - return "LeaseTime" - case DHCPOptExtOptions: - return "ExtOpts" - case DHCPOptMessageType: - return "MessageType" - case DHCPOptServerID: - return "ServerID" - case DHCPOptParamsRequest: - return "ParamsRequest" - case DHCPOptMessage: - return "Message" - case DHCPOptMaxMessageSize: - return "MaxDHCPSize" - case DHCPOptT1: - return "Timer1" - case DHCPOptT2: - return "Timer2" - case DHCPOptClassID: - return "ClassID" - case DHCPOptClientID: - return "ClientID" - case DHCPOptDomainSearch: - return "DomainSearch" - case DHCPOptClasslessStaticRoute: - return "ClasslessStaticRoute" - default: - return "Unknown" - } -} - -// DHCPOption rerpresents a DHCP option. -type DHCPOption struct { - Type DHCPOpt - Length uint8 - Data []byte -} - -// String returns a string version of a DHCP Option. -func (o DHCPOption) String() string { - switch o.Type { - - case DHCPOptHostname, DHCPOptMeritDumpFile, DHCPOptDomainName, DHCPOptRootPath, - DHCPOptExtensionsPath, DHCPOptNISDomain, DHCPOptNetBIOSTCPScope, DHCPOptXFontServer, - DHCPOptXDisplayManager, DHCPOptMessage, DHCPOptDomainSearch: // string - return fmt.Sprintf("Option(%s:%s)", o.Type, string(o.Data)) - - case DHCPOptMessageType: - if len(o.Data) != 1 { - return fmt.Sprintf("Option(%s:INVALID)", o.Type) - } - return fmt.Sprintf("Option(%s:%s)", o.Type, DHCPMsgType(o.Data[0])) - - case DHCPOptSubnetMask, DHCPOptServerID, DHCPOptBroadcastAddr, - DHCPOptSolicitAddr, DHCPOptRequestIP: // net.IP - if len(o.Data) < 4 { - return fmt.Sprintf("Option(%s:INVALID)", o.Type) - } - return fmt.Sprintf("Option(%s:%s)", o.Type, net.IP(o.Data)) - - case DHCPOptT1, DHCPOptT2, DHCPOptLeaseTime, DHCPOptPathMTUAgingTimeout, - DHCPOptARPTimeout, DHCPOptTCPKeepAliveInt: // uint32 - if len(o.Data) != 4 { - return fmt.Sprintf("Option(%s:INVALID)", o.Type) - } - return fmt.Sprintf("Option(%s:%d)", o.Type, - uint32(o.Data[0])<<24|uint32(o.Data[1])<<16|uint32(o.Data[2])<<8|uint32(o.Data[3])) - - case DHCPOptParamsRequest: - buf := &bytes.Buffer{} - buf.WriteString(fmt.Sprintf("Option(%s:", o.Type)) - for i, v := range o.Data { - buf.WriteString(DHCPOpt(v).String()) - if i+1 != len(o.Data) { - buf.WriteByte(',') - } - } - buf.WriteString(")") - return buf.String() - - default: - return fmt.Sprintf("Option(%s:%v)", o.Type, o.Data) - } -} - -// NewDHCPOption constructs a new DHCPOption with a given type and data. -func NewDHCPOption(t DHCPOpt, data []byte) DHCPOption { - o := DHCPOption{Type: t} - if data != nil { - o.Data = data - o.Length = uint8(len(data)) - } - return o -} - -func (o *DHCPOption) encode(b []byte) error { - switch o.Type { - case DHCPOptPad, DHCPOptEnd: - b[0] = byte(o.Type) - default: - b[0] = byte(o.Type) - b[1] = o.Length - copy(b[2:], o.Data) - } - return nil -} - -func (o *DHCPOption) decode(data []byte) error { - if len(data) < 1 { - // Pad/End have a length of 1 - return DecOptionNotEnoughData - } - o.Type = DHCPOpt(data[0]) - switch o.Type { - case DHCPOptPad, DHCPOptEnd: - o.Data = nil - default: - if len(data) < 2 { - return DecOptionNotEnoughData - } - o.Length = data[1] - if int(o.Length) > len(data[2:]) { - return DecOptionMalformed - } - o.Data = data[2 : 2+int(o.Length)] - } - return nil -} - -// DHCPv4Error is used for constant errors for DHCPv4. It is needed for test asserts. -type DHCPv4Error string - -// DHCPv4Error implements error interface. -func (d DHCPv4Error) Error() string { - return string(d) -} - -const ( - // DecOptionNotEnoughData is returned when there is not enough data during option's decode process - DecOptionNotEnoughData = DHCPv4Error("Not enough data to decode") - // DecOptionMalformed is returned when the option is malformed - DecOptionMalformed = DHCPv4Error("Option is malformed") - // InvalidMagicCookie is returned when Magic cookie is missing into BOOTP header - InvalidMagicCookie = DHCPv4Error("Bad DHCP header") -) diff --git a/vendor/github.com/google/gopacket/layers/dhcpv6.go b/vendor/github.com/google/gopacket/layers/dhcpv6.go deleted file mode 100644 index 2698cfb196..0000000000 --- a/vendor/github.com/google/gopacket/layers/dhcpv6.go +++ /dev/null @@ -1,360 +0,0 @@ -// Copyright 2018 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "fmt" - "net" - - "github.com/google/gopacket" -) - -// DHCPv6MsgType represents a DHCPv6 operation -type DHCPv6MsgType byte - -// Constants that represent DHCP operations -const ( - DHCPv6MsgTypeUnspecified DHCPv6MsgType = iota - DHCPv6MsgTypeSolicit - DHCPv6MsgTypeAdverstise - DHCPv6MsgTypeRequest - DHCPv6MsgTypeConfirm - DHCPv6MsgTypeRenew - DHCPv6MsgTypeRebind - DHCPv6MsgTypeReply - DHCPv6MsgTypeRelease - DHCPv6MsgTypeDecline - DHCPv6MsgTypeReconfigure - DHCPv6MsgTypeInformationRequest - DHCPv6MsgTypeRelayForward - DHCPv6MsgTypeRelayReply -) - -// String returns a string version of a DHCPv6MsgType. -func (o DHCPv6MsgType) String() string { - switch o { - case DHCPv6MsgTypeUnspecified: - return "Unspecified" - case DHCPv6MsgTypeSolicit: - return "Solicit" - case DHCPv6MsgTypeAdverstise: - return "Adverstise" - case DHCPv6MsgTypeRequest: - return "Request" - case DHCPv6MsgTypeConfirm: - return "Confirm" - case DHCPv6MsgTypeRenew: - return "Renew" - case DHCPv6MsgTypeRebind: - return "Rebind" - case DHCPv6MsgTypeReply: - return "Reply" - case DHCPv6MsgTypeRelease: - return "Release" - case DHCPv6MsgTypeDecline: - return "Decline" - case DHCPv6MsgTypeReconfigure: - return "Reconfigure" - case DHCPv6MsgTypeInformationRequest: - return "InformationRequest" - case DHCPv6MsgTypeRelayForward: - return "RelayForward" - case DHCPv6MsgTypeRelayReply: - return "RelayReply" - default: - return "Unknown" - } -} - -// DHCPv6 contains data for a single DHCP packet. -type DHCPv6 struct { - BaseLayer - MsgType DHCPv6MsgType - HopCount uint8 - LinkAddr net.IP - PeerAddr net.IP - TransactionID []byte - Options DHCPv6Options -} - -// LayerType returns gopacket.LayerTypeDHCPv6 -func (d *DHCPv6) LayerType() gopacket.LayerType { return LayerTypeDHCPv6 } - -// DecodeFromBytes decodes the given bytes into this layer. -func (d *DHCPv6) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 4 { - df.SetTruncated() - return fmt.Errorf("DHCPv6 length %d too short", len(data)) - } - d.BaseLayer = BaseLayer{Contents: data} - d.Options = d.Options[:0] - d.MsgType = DHCPv6MsgType(data[0]) - - offset := 0 - if d.MsgType == DHCPv6MsgTypeRelayForward || d.MsgType == DHCPv6MsgTypeRelayReply { - if len(data) < 34 { - df.SetTruncated() - return fmt.Errorf("DHCPv6 length %d too short for message type %d", len(data), d.MsgType) - } - d.HopCount = data[1] - d.LinkAddr = net.IP(data[2:18]) - d.PeerAddr = net.IP(data[18:34]) - offset = 34 - } else { - d.TransactionID = data[1:4] - offset = 4 - } - - stop := len(data) - for offset < stop { - o := DHCPv6Option{} - if err := o.decode(data[offset:]); err != nil { - return err - } - d.Options = append(d.Options, o) - offset += int(o.Length) + 4 // 2 from option code, 2 from option length - } - - return nil -} - -// Len returns the length of a DHCPv6 packet. -func (d *DHCPv6) Len() int { - n := 1 - if d.MsgType == DHCPv6MsgTypeRelayForward || d.MsgType == DHCPv6MsgTypeRelayReply { - n += 33 - } else { - n += 3 - } - - for _, o := range d.Options { - n += int(o.Length) + 4 // 2 from option code, 2 from option length - } - - return n -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (d *DHCPv6) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - plen := int(d.Len()) - - data, err := b.PrependBytes(plen) - if err != nil { - return err - } - - offset := 0 - data[0] = byte(d.MsgType) - if d.MsgType == DHCPv6MsgTypeRelayForward || d.MsgType == DHCPv6MsgTypeRelayReply { - data[1] = byte(d.HopCount) - copy(data[2:18], d.LinkAddr.To16()) - copy(data[18:34], d.PeerAddr.To16()) - offset = 34 - } else { - copy(data[1:4], d.TransactionID) - offset = 4 - } - - if len(d.Options) > 0 { - for _, o := range d.Options { - if err := o.encode(data[offset:], opts); err != nil { - return err - } - offset += int(o.Length) + 4 // 2 from option code, 2 from option length - } - } - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (d *DHCPv6) CanDecode() gopacket.LayerClass { - return LayerTypeDHCPv6 -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (d *DHCPv6) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -func decodeDHCPv6(data []byte, p gopacket.PacketBuilder) error { - dhcp := &DHCPv6{} - err := dhcp.DecodeFromBytes(data, p) - if err != nil { - return err - } - p.AddLayer(dhcp) - return p.NextDecoder(gopacket.LayerTypePayload) -} - -// DHCPv6StatusCode represents a DHCP status code - RFC-3315 -type DHCPv6StatusCode uint16 - -// Constants for the DHCPv6StatusCode. -const ( - DHCPv6StatusCodeSuccess DHCPv6StatusCode = iota - DHCPv6StatusCodeUnspecFail - DHCPv6StatusCodeNoAddrsAvail - DHCPv6StatusCodeNoBinding - DHCPv6StatusCodeNotOnLink - DHCPv6StatusCodeUseMulticast -) - -// String returns a string version of a DHCPv6StatusCode. -func (o DHCPv6StatusCode) String() string { - switch o { - case DHCPv6StatusCodeSuccess: - return "Success" - case DHCPv6StatusCodeUnspecFail: - return "UnspecifiedFailure" - case DHCPv6StatusCodeNoAddrsAvail: - return "NoAddressAvailable" - case DHCPv6StatusCodeNoBinding: - return "NoBinding" - case DHCPv6StatusCodeNotOnLink: - return "NotOnLink" - case DHCPv6StatusCodeUseMulticast: - return "UseMulticast" - default: - return "Unknown" - } -} - -// DHCPv6DUIDType represents a DHCP DUID - RFC-3315 -type DHCPv6DUIDType uint16 - -// Constants for the DHCPv6DUIDType. -const ( - DHCPv6DUIDTypeLLT DHCPv6DUIDType = iota + 1 - DHCPv6DUIDTypeEN - DHCPv6DUIDTypeLL -) - -// String returns a string version of a DHCPv6DUIDType. -func (o DHCPv6DUIDType) String() string { - switch o { - case DHCPv6DUIDTypeLLT: - return "LLT" - case DHCPv6DUIDTypeEN: - return "EN" - case DHCPv6DUIDTypeLL: - return "LL" - default: - return "Unknown" - } -} - -// DHCPv6DUID means DHCP Unique Identifier as stated in RFC 3315, section 9 (https://tools.ietf.org/html/rfc3315#page-19) -type DHCPv6DUID struct { - Type DHCPv6DUIDType - // LLT, LL - HardwareType []byte - // EN - EnterpriseNumber []byte - // LLT - Time []byte - // LLT, LL - LinkLayerAddress net.HardwareAddr - // EN - Identifier []byte -} - -// DecodeFromBytes decodes the given bytes into a DHCPv6DUID -func (d *DHCPv6DUID) DecodeFromBytes(data []byte) error { - if len(data) < 2 { - return fmt.Errorf("Not enough bytes to decode: %d", len(data)) - } - - d.Type = DHCPv6DUIDType(binary.BigEndian.Uint16(data[:2])) - if d.Type == DHCPv6DUIDTypeLLT || d.Type == DHCPv6DUIDTypeLL { - if len(data) < 4 { - return fmt.Errorf("Not enough bytes to decode: %d", len(data)) - } - d.HardwareType = data[2:4] - } - - if d.Type == DHCPv6DUIDTypeLLT { - if len(data) < 8 { - return fmt.Errorf("Not enough bytes to decode: %d", len(data)) - } - d.Time = data[4:8] - d.LinkLayerAddress = net.HardwareAddr(data[8:]) - } else if d.Type == DHCPv6DUIDTypeEN { - if len(data) < 6 { - return fmt.Errorf("Not enough bytes to decode: %d", len(data)) - } - d.EnterpriseNumber = data[2:6] - d.Identifier = data[6:] - } else { // DHCPv6DUIDTypeLL - if len(data) < 4 { - return fmt.Errorf("Not enough bytes to decode: %d", len(data)) - } - d.LinkLayerAddress = net.HardwareAddr(data[4:]) - } - - return nil -} - -// Encode encodes the DHCPv6DUID in a slice of bytes -func (d *DHCPv6DUID) Encode() []byte { - length := d.Len() - data := make([]byte, length) - binary.BigEndian.PutUint16(data[0:2], uint16(d.Type)) - - if d.Type == DHCPv6DUIDTypeLLT || d.Type == DHCPv6DUIDTypeLL { - copy(data[2:4], d.HardwareType) - } - - if d.Type == DHCPv6DUIDTypeLLT { - copy(data[4:8], d.Time) - copy(data[8:], d.LinkLayerAddress) - } else if d.Type == DHCPv6DUIDTypeEN { - copy(data[2:6], d.EnterpriseNumber) - copy(data[6:], d.Identifier) - } else { - copy(data[4:], d.LinkLayerAddress) - } - - return data -} - -// Len returns the length of the DHCPv6DUID, respecting the type -func (d *DHCPv6DUID) Len() int { - length := 2 // d.Type - if d.Type == DHCPv6DUIDTypeLLT { - length += 2 /*HardwareType*/ + 4 /*d.Time*/ + len(d.LinkLayerAddress) - } else if d.Type == DHCPv6DUIDTypeEN { - length += 4 /*d.EnterpriseNumber*/ + len(d.Identifier) - } else { // LL - length += 2 /*d.HardwareType*/ + len(d.LinkLayerAddress) - } - - return length -} - -func (d *DHCPv6DUID) String() string { - duid := "Type: " + d.Type.String() + ", " - if d.Type == DHCPv6DUIDTypeLLT { - duid += fmt.Sprintf("HardwareType: %v, Time: %v, LinkLayerAddress: %v", d.HardwareType, d.Time, d.LinkLayerAddress) - } else if d.Type == DHCPv6DUIDTypeEN { - duid += fmt.Sprintf("EnterpriseNumber: %v, Identifier: %v", d.EnterpriseNumber, d.Identifier) - } else { // DHCPv6DUIDTypeLL - duid += fmt.Sprintf("HardwareType: %v, LinkLayerAddress: %v", d.HardwareType, d.LinkLayerAddress) - } - return duid -} - -func decodeDHCPv6DUID(data []byte) (*DHCPv6DUID, error) { - duid := &DHCPv6DUID{} - err := duid.DecodeFromBytes(data) - if err != nil { - return nil, err - } - return duid, nil -} diff --git a/vendor/github.com/google/gopacket/layers/dhcpv6_options.go b/vendor/github.com/google/gopacket/layers/dhcpv6_options.go deleted file mode 100644 index 5a1f9919b1..0000000000 --- a/vendor/github.com/google/gopacket/layers/dhcpv6_options.go +++ /dev/null @@ -1,621 +0,0 @@ -// Copyright 2018 The GoPacket Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "bytes" - "encoding/binary" - "errors" - "fmt" - "github.com/google/gopacket" -) - -// DHCPv6Opt represents a DHCP option or parameter from RFC-3315 -type DHCPv6Opt uint16 - -// Constants for the DHCPv6Opt options. -const ( - DHCPv6OptClientID DHCPv6Opt = 1 - DHCPv6OptServerID DHCPv6Opt = 2 - DHCPv6OptIANA DHCPv6Opt = 3 - DHCPv6OptIATA DHCPv6Opt = 4 - DHCPv6OptIAAddr DHCPv6Opt = 5 - DHCPv6OptOro DHCPv6Opt = 6 - DHCPv6OptPreference DHCPv6Opt = 7 - DHCPv6OptElapsedTime DHCPv6Opt = 8 - DHCPv6OptRelayMessage DHCPv6Opt = 9 - DHCPv6OptAuth DHCPv6Opt = 11 - DHCPv6OptUnicast DHCPv6Opt = 12 - DHCPv6OptStatusCode DHCPv6Opt = 13 - DHCPv6OptRapidCommit DHCPv6Opt = 14 - DHCPv6OptUserClass DHCPv6Opt = 15 - DHCPv6OptVendorClass DHCPv6Opt = 16 - DHCPv6OptVendorOpts DHCPv6Opt = 17 - DHCPv6OptInterfaceID DHCPv6Opt = 18 - DHCPv6OptReconfigureMessage DHCPv6Opt = 19 - DHCPv6OptReconfigureAccept DHCPv6Opt = 20 - - // RFC 3319 Session Initiation Protocol (SIP) - DHCPv6OptSIPServersDomainList DHCPv6Opt = 21 - DHCPv6OptSIPServersAddressList DHCPv6Opt = 22 - - // RFC 3646 DNS Configuration - DHCPv6OptDNSServers DHCPv6Opt = 23 - DHCPv6OptDomainList DHCPv6Opt = 24 - - // RFC 3633 Prefix Delegation - DHCPv6OptIAPD DHCPv6Opt = 25 - DHCPv6OptIAPrefix DHCPv6Opt = 26 - - // RFC 3898 Network Information Service (NIS) - DHCPv6OptNISServers DHCPv6Opt = 27 - DHCPv6OptNISPServers DHCPv6Opt = 28 - DHCPv6OptNISDomainName DHCPv6Opt = 29 - DHCPv6OptNISPDomainName DHCPv6Opt = 30 - - // RFC 4075 Simple Network Time Protocol (SNTP) - DHCPv6OptSNTPServers DHCPv6Opt = 31 - - // RFC 4242 Information Refresh Time Option - DHCPv6OptInformationRefreshTime DHCPv6Opt = 32 - - // RFC 4280 Broadcast and Multicast Control Servers - DHCPv6OptBCMCSServerDomainNameList DHCPv6Opt = 33 - DHCPv6OptBCMCSServerAddressList DHCPv6Opt = 34 - - // RFC 4776 Civic Address ConfigurationOption - DHCPv6OptGeoconfCivic DHCPv6Opt = 36 - - // RFC 4649 Relay Agent Remote-ID - DHCPv6OptRemoteID DHCPv6Opt = 37 - - // RFC 4580 Relay Agent Subscriber-ID - DHCPv6OptSubscriberID DHCPv6Opt = 38 - - // RFC 4704 Client Full Qualified Domain Name (FQDN) - DHCPv6OptClientFQDN DHCPv6Opt = 39 - - // RFC 5192 Protocol for Carrying Authentication for Network Access (PANA) - DHCPv6OptPanaAgent DHCPv6Opt = 40 - - // RFC 4833 Timezone Options - DHCPv6OptNewPOSIXTimezone DHCPv6Opt = 41 - DHCPv6OptNewTZDBTimezone DHCPv6Opt = 42 - - // RFC 4994 Relay Agent Echo Request - DHCPv6OptEchoRequestOption DHCPv6Opt = 43 - - // RFC 5007 Leasequery - DHCPv6OptLQQuery DHCPv6Opt = 44 - DHCPv6OptCLTTime DHCPv6Opt = 45 - DHCPv6OptClientData DHCPv6Opt = 46 - DHCPv6OptLQRelayData DHCPv6Opt = 47 - DHCPv6OptLQClientLink DHCPv6Opt = 48 - - // RFC 6610 Home Information Discovery in Mobile IPv6 (MIPv6) - DHCPv6OptMIP6HNIDF DHCPv6Opt = 49 - DHCPv6OptMIP6VDINF DHCPv6Opt = 50 - DHCPv6OptMIP6IDINF DHCPv6Opt = 69 - DHCPv6OptMIP6UDINF DHCPv6Opt = 70 - DHCPv6OptMIP6HNP DHCPv6Opt = 71 - DHCPv6OptMIP6HAA DHCPv6Opt = 72 - DHCPv6OptMIP6HAF DHCPv6Opt = 73 - - // RFC 5223 Discovering Location-to-Service Translation (LoST) Servers - DHCPv6OptV6LOST DHCPv6Opt = 51 - - // RFC 5417 Control And Provisioning of Wireless Access Points (CAPWAP) - DHCPv6OptCAPWAPACV6 DHCPv6Opt = 52 - - // RFC 5460 Bulk Leasequery - DHCPv6OptRelayID DHCPv6Opt = 53 - - // RFC 5678 IEEE 802.21 Mobility Services (MoS) Discovery - DHCPv6OptIPv6AddressMoS DHCPv6Opt = 54 - DHCPv6OptIPv6FQDNMoS DHCPv6Opt = 55 - - // RFC 5908 NTP Server Option - DHCPv6OptNTPServer DHCPv6Opt = 56 - - // RFC 5986 Discovering the Local Location Information Server (LIS) - DHCPv6OptV6AccessDomain DHCPv6Opt = 57 - - // RFC 5986 SIP User Agent - DHCPv6OptSIPUACSList DHCPv6Opt = 58 - - // RFC 5970 Options for Network Boot - DHCPv6OptBootFileURL DHCPv6Opt = 59 - DHCPv6OptBootFileParam DHCPv6Opt = 60 - DHCPv6OptClientArchType DHCPv6Opt = 61 - DHCPv6OptNII DHCPv6Opt = 62 - - // RFC 6225 Coordinate-Based Location Configuration Information - DHCPv6OptGeolocation DHCPv6Opt = 63 - - // RFC 6334 Dual-Stack Lite - DHCPv6OptAFTRName DHCPv6Opt = 64 - - // RFC 6440 EAP Re-authentication Protocol (ERP) - DHCPv6OptERPLocalDomainName DHCPv6Opt = 65 - - // RFC 6422 Relay-Supplied DHCP Options - DHCPv6OptRSOO DHCPv6Opt = 66 - - // RFC 6603 Prefix Exclude Option for DHCPv6-based Prefix Delegation - DHCPv6OptPDExclude DHCPv6Opt = 67 - - // RFC 6607 Virtual Subnet Selection - DHCPv6OptVSS DHCPv6Opt = 68 - - // RFC 6731 Improved Recursive DNS Server Selection for Multi-Interfaced Nodes - DHCPv6OptRDNSSSelection DHCPv6Opt = 74 - - // RFC 6784 Kerberos Options for DHCPv6 - DHCPv6OptKRBPrincipalName DHCPv6Opt = 75 - DHCPv6OptKRBRealmName DHCPv6Opt = 76 - DHCPv6OptKRBKDC DHCPv6Opt = 77 - - // RFC 6939 Client Link-Layer Address Option - DHCPv6OptClientLinkLayerAddress DHCPv6Opt = 79 - - // RFC 6977 Triggering DHCPv6 Reconfiguration from Relay Agents - DHCPv6OptLinkAddress DHCPv6Opt = 80 - - // RFC 7037 RADIUS Option for the DHCPv6 Relay Agent - DHCPv6OptRADIUS DHCPv6Opt = 81 - - // RFC 7083 Modification to Default Values of SOL_MAX_RT and INF_MAX_RT - DHCPv6OptSolMaxRt DHCPv6Opt = 82 - DHCPv6OptInfMaxRt DHCPv6Opt = 83 - - // RFC 7078 Distributing Address Selection Policy - DHCPv6OptAddrSel DHCPv6Opt = 84 - DHCPv6OptAddrSelTable DHCPv6Opt = 85 - - // RFC 7291 DHCP Options for the Port Control Protocol (PCP) - DHCPv6OptV6PCPServer DHCPv6Opt = 86 - - // RFC 7341 DHCPv4-over-DHCPv6 (DHCP 4o6) Transport - DHCPv6OptDHCPv4Message DHCPv6Opt = 87 - DHCPv6OptDHCPv4OverDHCPv6Server DHCPv6Opt = 88 - - // RFC 7598 Configuration of Softwire Address and Port-Mapped Clients - DHCPv6OptS46Rule DHCPv6Opt = 89 - DHCPv6OptS46BR DHCPv6Opt = 90 - DHCPv6OptS46DMR DHCPv6Opt = 91 - DHCPv6OptS46V4V4Bind DHCPv6Opt = 92 - DHCPv6OptS46PortParameters DHCPv6Opt = 93 - DHCPv6OptS46ContMAPE DHCPv6Opt = 94 - DHCPv6OptS46ContMAPT DHCPv6Opt = 95 - DHCPv6OptS46ContLW DHCPv6Opt = 96 - - // RFC 7600 IPv4 Residual Deployment via IPv6 - DHCPv6Opt4RD DHCPv6Opt = 97 - DHCPv6Opt4RDMapRule DHCPv6Opt = 98 - DHCPv6Opt4RDNonMapRule DHCPv6Opt = 99 - - // RFC 7653 Active Leasequery - DHCPv6OptLQBaseTime DHCPv6Opt = 100 - DHCPv6OptLQStartTime DHCPv6Opt = 101 - DHCPv6OptLQEndTime DHCPv6Opt = 102 - - // RFC 7710 Captive-Portal Identification - DHCPv6OptCaptivePortal DHCPv6Opt = 103 - - // RFC 7774 Multicast Protocol for Low-Power and Lossy Networks (MPL) Parameter Configuration - DHCPv6OptMPLParameters DHCPv6Opt = 104 - - // RFC 7839 Access-Network-Identifier (ANI) - DHCPv6OptANIATT DHCPv6Opt = 105 - DHCPv6OptANINetworkName DHCPv6Opt = 106 - DHCPv6OptANIAPName DHCPv6Opt = 107 - DHCPv6OptANIAPBSSID DHCPv6Opt = 108 - DHCPv6OptANIOperatorID DHCPv6Opt = 109 - DHCPv6OptANIOperatorRealm DHCPv6Opt = 110 - - // RFC 8026 Unified IPv4-in-IPv6 Softwire Customer Premises Equipment (CPE) - DHCPv6OptS46Priority DHCPv6Opt = 111 - - // draft-ietf-opsawg-mud-25 Manufacturer Usage Description (MUD) - DHCPv6OptMUDURLV6 DHCPv6Opt = 112 - - // RFC 8115 IPv4-Embedded Multicast and Unicast IPv6 Prefixes - DHCPv6OptV6Prefix64 DHCPv6Opt = 113 - - // RFC 8156 DHCPv6 Failover Protocol - DHCPv6OptFBindingStatus DHCPv6Opt = 114 - DHCPv6OptFConnectFlags DHCPv6Opt = 115 - DHCPv6OptFDNSRemovalInfo DHCPv6Opt = 116 - DHCPv6OptFDNSHostName DHCPv6Opt = 117 - DHCPv6OptFDNSZoneName DHCPv6Opt = 118 - DHCPv6OptFDNSFlags DHCPv6Opt = 119 - DHCPv6OptFExpirationTime DHCPv6Opt = 120 - DHCPv6OptFMaxUnacknowledgedBNDUPD DHCPv6Opt = 121 - DHCPv6OptFMCLT DHCPv6Opt = 122 - DHCPv6OptFPartnerLifetime DHCPv6Opt = 123 - DHCPv6OptFPartnerLifetimeSent DHCPv6Opt = 124 - DHCPv6OptFPartnerDownTime DHCPv6Opt = 125 - DHCPv6OptFPartnerRawCltTime DHCPv6Opt = 126 - DHCPv6OptFProtocolVersion DHCPv6Opt = 127 - DHCPv6OptFKeepaliveTime DHCPv6Opt = 128 - DHCPv6OptFReconfigureData DHCPv6Opt = 129 - DHCPv6OptFRelationshipName DHCPv6Opt = 130 - DHCPv6OptFServerFlags DHCPv6Opt = 131 - DHCPv6OptFServerState DHCPv6Opt = 132 - DHCPv6OptFStartTimeOfState DHCPv6Opt = 133 - DHCPv6OptFStateExpirationTime DHCPv6Opt = 134 - - // RFC 8357 Generalized UDP Source Port for DHCP Relay - DHCPv6OptRelayPort DHCPv6Opt = 135 - - // draft-ietf-netconf-zerotouch-25 Zero Touch Provisioning for Networking Devices - DHCPv6OptV6ZeroTouchRedirect DHCPv6Opt = 136 - - // RFC 6153 Access Network Discovery and Selection Function (ANDSF) Discovery - DHCPv6OptIPV6AddressANDSF DHCPv6Opt = 143 -) - -// String returns a string version of a DHCPv6Opt. -func (o DHCPv6Opt) String() string { - switch o { - case DHCPv6OptClientID: - return "ClientID" - case DHCPv6OptServerID: - return "ServerID" - case DHCPv6OptIANA: - return "IA_NA" - case DHCPv6OptIATA: - return "IA_TA" - case DHCPv6OptIAAddr: - return "IAAddr" - case DHCPv6OptOro: - return "Oro" - case DHCPv6OptPreference: - return "Preference" - case DHCPv6OptElapsedTime: - return "ElapsedTime" - case DHCPv6OptRelayMessage: - return "RelayMessage" - case DHCPv6OptAuth: - return "Auth" - case DHCPv6OptUnicast: - return "Unicast" - case DHCPv6OptStatusCode: - return "StatusCode" - case DHCPv6OptRapidCommit: - return "RapidCommit" - case DHCPv6OptUserClass: - return "UserClass" - case DHCPv6OptVendorClass: - return "VendorClass" - case DHCPv6OptVendorOpts: - return "VendorOpts" - case DHCPv6OptInterfaceID: - return "InterfaceID" - case DHCPv6OptReconfigureMessage: - return "ReconfigureMessage" - case DHCPv6OptReconfigureAccept: - return "ReconfigureAccept" - case DHCPv6OptSIPServersDomainList: - return "SIPServersDomainList" - case DHCPv6OptSIPServersAddressList: - return "SIPServersAddressList" - case DHCPv6OptDNSServers: - return "DNSRecursiveNameServer" - case DHCPv6OptDomainList: - return "DomainSearchList" - case DHCPv6OptIAPD: - return "IdentityAssociationPrefixDelegation" - case DHCPv6OptIAPrefix: - return "IAPDPrefix" - case DHCPv6OptNISServers: - return "NISServers" - case DHCPv6OptNISPServers: - return "NISv2Servers" - case DHCPv6OptNISDomainName: - return "NISDomainName" - case DHCPv6OptNISPDomainName: - return "NISv2DomainName" - case DHCPv6OptSNTPServers: - return "SNTPServers" - case DHCPv6OptInformationRefreshTime: - return "InformationRefreshTime" - case DHCPv6OptBCMCSServerDomainNameList: - return "BCMCSControlServersDomainNameList" - case DHCPv6OptBCMCSServerAddressList: - return "BCMCSControlServersAddressList" - case DHCPv6OptGeoconfCivic: - return "CivicAddress" - case DHCPv6OptRemoteID: - return "RelayAgentRemoteID" - case DHCPv6OptSubscriberID: - return "RelayAgentSubscriberID" - case DHCPv6OptClientFQDN: - return "ClientFQDN" - case DHCPv6OptPanaAgent: - return "PANAAuthenticationAgent" - case DHCPv6OptNewPOSIXTimezone: - return "NewPOSIXTimezone" - case DHCPv6OptNewTZDBTimezone: - return "NewTZDBTimezone" - case DHCPv6OptEchoRequestOption: - return "EchoRequest" - case DHCPv6OptLQQuery: - return "LeasequeryQuery" - case DHCPv6OptClientData: - return "LeasequeryClientData" - case DHCPv6OptCLTTime: - return "LeasequeryClientLastTransactionTime" - case DHCPv6OptLQRelayData: - return "LeasequeryRelayData" - case DHCPv6OptLQClientLink: - return "LeasequeryClientLink" - case DHCPv6OptMIP6HNIDF: - return "MIPv6HomeNetworkIDFQDN" - case DHCPv6OptMIP6VDINF: - return "MIPv6VisitedHomeNetworkInformation" - case DHCPv6OptMIP6IDINF: - return "MIPv6IdentifiedHomeNetworkInformation" - case DHCPv6OptMIP6UDINF: - return "MIPv6UnrestrictedHomeNetworkInformation" - case DHCPv6OptMIP6HNP: - return "MIPv6HomeNetworkPrefix" - case DHCPv6OptMIP6HAA: - return "MIPv6HomeAgentAddress" - case DHCPv6OptMIP6HAF: - return "MIPv6HomeAgentFQDN" - case DHCPv6OptV6LOST: - return "LoST Server" - case DHCPv6OptCAPWAPACV6: - return "CAPWAPAccessControllerV6" - case DHCPv6OptRelayID: - return "LeasequeryRelayID" - case DHCPv6OptIPv6AddressMoS: - return "MoSIPv6Address" - case DHCPv6OptIPv6FQDNMoS: - return "MoSDomainNameList" - case DHCPv6OptNTPServer: - return "NTPServer" - case DHCPv6OptV6AccessDomain: - return "AccessNetworkDomainName" - case DHCPv6OptSIPUACSList: - return "SIPUserAgentConfigurationServiceDomains" - case DHCPv6OptBootFileURL: - return "BootFileURL" - case DHCPv6OptBootFileParam: - return "BootFileParameters" - case DHCPv6OptClientArchType: - return "ClientSystemArchitectureType" - case DHCPv6OptNII: - return "ClientNetworkInterfaceIdentifier" - case DHCPv6OptGeolocation: - return "Geolocation" - case DHCPv6OptAFTRName: - return "AFTRName" - case DHCPv6OptERPLocalDomainName: - return "AFTRName" - case DHCPv6OptRSOO: - return "RSOOption" - case DHCPv6OptPDExclude: - return "PrefixExclude" - case DHCPv6OptVSS: - return "VirtualSubnetSelection" - case DHCPv6OptRDNSSSelection: - return "RDNSSSelection" - case DHCPv6OptKRBPrincipalName: - return "KerberosPrincipalName" - case DHCPv6OptKRBRealmName: - return "KerberosRealmName" - case DHCPv6OptKRBKDC: - return "KerberosKDC" - case DHCPv6OptClientLinkLayerAddress: - return "ClientLinkLayerAddress" - case DHCPv6OptLinkAddress: - return "LinkAddress" - case DHCPv6OptRADIUS: - return "RADIUS" - case DHCPv6OptSolMaxRt: - return "SolMaxRt" - case DHCPv6OptInfMaxRt: - return "InfMaxRt" - case DHCPv6OptAddrSel: - return "AddressSelection" - case DHCPv6OptAddrSelTable: - return "AddressSelectionTable" - case DHCPv6OptV6PCPServer: - return "PCPServer" - case DHCPv6OptDHCPv4Message: - return "DHCPv4Message" - case DHCPv6OptDHCPv4OverDHCPv6Server: - return "DHCP4o6ServerAddress" - case DHCPv6OptS46Rule: - return "S46Rule" - case DHCPv6OptS46BR: - return "S46BR" - case DHCPv6OptS46DMR: - return "S46DMR" - case DHCPv6OptS46V4V4Bind: - return "S46IPv4IPv6AddressBinding" - case DHCPv6OptS46PortParameters: - return "S46PortParameters" - case DHCPv6OptS46ContMAPE: - return "S46MAPEContainer" - case DHCPv6OptS46ContMAPT: - return "S46MAPTContainer" - case DHCPv6OptS46ContLW: - return "S46Lightweight4Over6Container" - case DHCPv6Opt4RD: - return "4RD" - case DHCPv6Opt4RDMapRule: - return "4RDMapRule" - case DHCPv6Opt4RDNonMapRule: - return "4RDNonMapRule" - case DHCPv6OptLQBaseTime: - return "LQBaseTime" - case DHCPv6OptLQStartTime: - return "LQStartTime" - case DHCPv6OptLQEndTime: - return "LQEndTime" - case DHCPv6OptCaptivePortal: - return "CaptivePortal" - case DHCPv6OptMPLParameters: - return "MPLParameterConfiguration" - case DHCPv6OptANIATT: - return "ANIAccessTechnologyType" - case DHCPv6OptANINetworkName: - return "ANINetworkName" - case DHCPv6OptANIAPName: - return "ANIAccessPointName" - case DHCPv6OptANIAPBSSID: - return "ANIAccessPointBSSID" - case DHCPv6OptANIOperatorID: - return "ANIOperatorIdentifier" - case DHCPv6OptANIOperatorRealm: - return "ANIOperatorRealm" - case DHCPv6OptS46Priority: - return "S64Priority" - case DHCPv6OptMUDURLV6: - return "ManufacturerUsageDescriptionURL" - case DHCPv6OptV6Prefix64: - return "V6Prefix64" - case DHCPv6OptFBindingStatus: - return "FailoverBindingStatus" - case DHCPv6OptFConnectFlags: - return "FailoverConnectFlags" - case DHCPv6OptFDNSRemovalInfo: - return "FailoverDNSRemovalInfo" - case DHCPv6OptFDNSHostName: - return "FailoverDNSHostName" - case DHCPv6OptFDNSZoneName: - return "FailoverDNSZoneName" - case DHCPv6OptFDNSFlags: - return "FailoverDNSFlags" - case DHCPv6OptFExpirationTime: - return "FailoverExpirationTime" - case DHCPv6OptFMaxUnacknowledgedBNDUPD: - return "FailoverMaxUnacknowledgedBNDUPDMessages" - case DHCPv6OptFMCLT: - return "FailoverMaximumClientLeadTime" - case DHCPv6OptFPartnerLifetime: - return "FailoverPartnerLifetime" - case DHCPv6OptFPartnerLifetimeSent: - return "FailoverPartnerLifetimeSent" - case DHCPv6OptFPartnerDownTime: - return "FailoverPartnerDownTime" - case DHCPv6OptFPartnerRawCltTime: - return "FailoverPartnerRawClientLeadTime" - case DHCPv6OptFProtocolVersion: - return "FailoverProtocolVersion" - case DHCPv6OptFKeepaliveTime: - return "FailoverKeepaliveTime" - case DHCPv6OptFReconfigureData: - return "FailoverReconfigureData" - case DHCPv6OptFRelationshipName: - return "FailoverRelationshipName" - case DHCPv6OptFServerFlags: - return "FailoverServerFlags" - case DHCPv6OptFServerState: - return "FailoverServerState" - case DHCPv6OptFStartTimeOfState: - return "FailoverStartTimeOfState" - case DHCPv6OptFStateExpirationTime: - return "FailoverStateExpirationTime" - case DHCPv6OptRelayPort: - return "RelayPort" - case DHCPv6OptV6ZeroTouchRedirect: - return "ZeroTouch" - case DHCPv6OptIPV6AddressANDSF: - return "ANDSFIPv6Address" - default: - return fmt.Sprintf("Unknown(%d)", uint16(o)) - } -} - -// DHCPv6Options is used to get nicely printed option lists which would normally -// be cut off after 5 options. -type DHCPv6Options []DHCPv6Option - -// String returns a string version of the options list. -func (o DHCPv6Options) String() string { - buf := &bytes.Buffer{} - buf.WriteByte('[') - for i, opt := range o { - buf.WriteString(opt.String()) - if i+1 != len(o) { - buf.WriteString(", ") - } - } - buf.WriteByte(']') - return buf.String() -} - -// DHCPv6Option rerpresents a DHCP option. -type DHCPv6Option struct { - Code DHCPv6Opt - Length uint16 - Data []byte -} - -// String returns a string version of a DHCP Option. -func (o DHCPv6Option) String() string { - switch o.Code { - case DHCPv6OptClientID, DHCPv6OptServerID: - duid, err := decodeDHCPv6DUID(o.Data) - if err != nil { - return fmt.Sprintf("Option(%s:INVALID)", o.Code) - } - return fmt.Sprintf("Option(%s:[%s])", o.Code, duid.String()) - case DHCPv6OptOro: - options := "" - for i := 0; i < int(o.Length); i += 2 { - if options != "" { - options += "," - } - option := DHCPv6Opt(binary.BigEndian.Uint16(o.Data[i : i+2])) - options += option.String() - } - return fmt.Sprintf("Option(%s:[%s])", o.Code, options) - default: - return fmt.Sprintf("Option(%s:%v)", o.Code, o.Data) - } -} - -// NewDHCPv6Option constructs a new DHCPv6Option with a given type and data. -func NewDHCPv6Option(code DHCPv6Opt, data []byte) DHCPv6Option { - o := DHCPv6Option{Code: code} - if data != nil { - o.Data = data - o.Length = uint16(len(data)) - } - - return o -} - -func (o *DHCPv6Option) encode(b []byte, opts gopacket.SerializeOptions) error { - binary.BigEndian.PutUint16(b[0:2], uint16(o.Code)) - if opts.FixLengths { - binary.BigEndian.PutUint16(b[2:4], uint16(len(o.Data))) - } else { - binary.BigEndian.PutUint16(b[2:4], o.Length) - } - copy(b[4:], o.Data) - - return nil -} - -func (o *DHCPv6Option) decode(data []byte) error { - if len(data) < 4 { - return errors.New("not enough data to decode") - } - o.Code = DHCPv6Opt(binary.BigEndian.Uint16(data[0:2])) - o.Length = binary.BigEndian.Uint16(data[2:4]) - if len(data) < 4+int(o.Length) { - return fmt.Errorf("dhcpv6 option size < length %d", 4+o.Length) - } - o.Data = data[4 : 4+o.Length] - return nil -} diff --git a/vendor/github.com/google/gopacket/layers/dns.go b/vendor/github.com/google/gopacket/layers/dns.go deleted file mode 100644 index de55294b5b..0000000000 --- a/vendor/github.com/google/gopacket/layers/dns.go +++ /dev/null @@ -1,1098 +0,0 @@ -// Copyright 2014, 2018 GoPacket Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - "net" - "strings" - - "github.com/google/gopacket" -) - -// DNSClass defines the class associated with a request/response. Different DNS -// classes can be thought of as an array of parallel namespace trees. -type DNSClass uint16 - -// DNSClass known values. -const ( - DNSClassIN DNSClass = 1 // Internet - DNSClassCS DNSClass = 2 // the CSNET class (Obsolete) - DNSClassCH DNSClass = 3 // the CHAOS class - DNSClassHS DNSClass = 4 // Hesiod [Dyer 87] - DNSClassAny DNSClass = 255 // AnyClass -) - -func (dc DNSClass) String() string { - switch dc { - default: - return "Unknown" - case DNSClassIN: - return "IN" - case DNSClassCS: - return "CS" - case DNSClassCH: - return "CH" - case DNSClassHS: - return "HS" - case DNSClassAny: - return "Any" - } -} - -// DNSType defines the type of data being requested/returned in a -// question/answer. -type DNSType uint16 - -// DNSType known values. -const ( - DNSTypeA DNSType = 1 // a host address - DNSTypeNS DNSType = 2 // an authoritative name server - DNSTypeMD DNSType = 3 // a mail destination (Obsolete - use MX) - DNSTypeMF DNSType = 4 // a mail forwarder (Obsolete - use MX) - DNSTypeCNAME DNSType = 5 // the canonical name for an alias - DNSTypeSOA DNSType = 6 // marks the start of a zone of authority - DNSTypeMB DNSType = 7 // a mailbox domain name (EXPERIMENTAL) - DNSTypeMG DNSType = 8 // a mail group member (EXPERIMENTAL) - DNSTypeMR DNSType = 9 // a mail rename domain name (EXPERIMENTAL) - DNSTypeNULL DNSType = 10 // a null RR (EXPERIMENTAL) - DNSTypeWKS DNSType = 11 // a well known service description - DNSTypePTR DNSType = 12 // a domain name pointer - DNSTypeHINFO DNSType = 13 // host information - DNSTypeMINFO DNSType = 14 // mailbox or mail list information - DNSTypeMX DNSType = 15 // mail exchange - DNSTypeTXT DNSType = 16 // text strings - DNSTypeAAAA DNSType = 28 // a IPv6 host address [RFC3596] - DNSTypeSRV DNSType = 33 // server discovery [RFC2782] [RFC6195] - DNSTypeOPT DNSType = 41 // OPT Pseudo-RR [RFC6891] - DNSTypeURI DNSType = 256 // URI RR [RFC7553] -) - -func (dt DNSType) String() string { - switch dt { - default: - return "Unknown" - case DNSTypeA: - return "A" - case DNSTypeNS: - return "NS" - case DNSTypeMD: - return "MD" - case DNSTypeMF: - return "MF" - case DNSTypeCNAME: - return "CNAME" - case DNSTypeSOA: - return "SOA" - case DNSTypeMB: - return "MB" - case DNSTypeMG: - return "MG" - case DNSTypeMR: - return "MR" - case DNSTypeNULL: - return "NULL" - case DNSTypeWKS: - return "WKS" - case DNSTypePTR: - return "PTR" - case DNSTypeHINFO: - return "HINFO" - case DNSTypeMINFO: - return "MINFO" - case DNSTypeMX: - return "MX" - case DNSTypeTXT: - return "TXT" - case DNSTypeAAAA: - return "AAAA" - case DNSTypeSRV: - return "SRV" - case DNSTypeOPT: - return "OPT" - case DNSTypeURI: - return "URI" - } -} - -// DNSResponseCode provides response codes for question answers. -type DNSResponseCode uint8 - -// DNSResponseCode known values. -const ( - DNSResponseCodeNoErr DNSResponseCode = 0 // No error - DNSResponseCodeFormErr DNSResponseCode = 1 // Format Error [RFC1035] - DNSResponseCodeServFail DNSResponseCode = 2 // Server Failure [RFC1035] - DNSResponseCodeNXDomain DNSResponseCode = 3 // Non-Existent Domain [RFC1035] - DNSResponseCodeNotImp DNSResponseCode = 4 // Not Implemented [RFC1035] - DNSResponseCodeRefused DNSResponseCode = 5 // Query Refused [RFC1035] - DNSResponseCodeYXDomain DNSResponseCode = 6 // Name Exists when it should not [RFC2136] - DNSResponseCodeYXRRSet DNSResponseCode = 7 // RR Set Exists when it should not [RFC2136] - DNSResponseCodeNXRRSet DNSResponseCode = 8 // RR Set that should exist does not [RFC2136] - DNSResponseCodeNotAuth DNSResponseCode = 9 // Server Not Authoritative for zone [RFC2136] - DNSResponseCodeNotZone DNSResponseCode = 10 // Name not contained in zone [RFC2136] - DNSResponseCodeBadVers DNSResponseCode = 16 // Bad OPT Version [RFC2671] - DNSResponseCodeBadSig DNSResponseCode = 16 // TSIG Signature Failure [RFC2845] - DNSResponseCodeBadKey DNSResponseCode = 17 // Key not recognized [RFC2845] - DNSResponseCodeBadTime DNSResponseCode = 18 // Signature out of time window [RFC2845] - DNSResponseCodeBadMode DNSResponseCode = 19 // Bad TKEY Mode [RFC2930] - DNSResponseCodeBadName DNSResponseCode = 20 // Duplicate key name [RFC2930] - DNSResponseCodeBadAlg DNSResponseCode = 21 // Algorithm not supported [RFC2930] - DNSResponseCodeBadTruc DNSResponseCode = 22 // Bad Truncation [RFC4635] - DNSResponseCodeBadCookie DNSResponseCode = 23 // Bad/missing Server Cookie [RFC7873] -) - -func (drc DNSResponseCode) String() string { - switch drc { - default: - return "Unknown" - case DNSResponseCodeNoErr: - return "No Error" - case DNSResponseCodeFormErr: - return "Format Error" - case DNSResponseCodeServFail: - return "Server Failure " - case DNSResponseCodeNXDomain: - return "Non-Existent Domain" - case DNSResponseCodeNotImp: - return "Not Implemented" - case DNSResponseCodeRefused: - return "Query Refused" - case DNSResponseCodeYXDomain: - return "Name Exists when it should not" - case DNSResponseCodeYXRRSet: - return "RR Set Exists when it should not" - case DNSResponseCodeNXRRSet: - return "RR Set that should exist does not" - case DNSResponseCodeNotAuth: - return "Server Not Authoritative for zone" - case DNSResponseCodeNotZone: - return "Name not contained in zone" - case DNSResponseCodeBadVers: - return "Bad OPT Version" - case DNSResponseCodeBadKey: - return "Key not recognized" - case DNSResponseCodeBadTime: - return "Signature out of time window" - case DNSResponseCodeBadMode: - return "Bad TKEY Mode" - case DNSResponseCodeBadName: - return "Duplicate key name" - case DNSResponseCodeBadAlg: - return "Algorithm not supported" - case DNSResponseCodeBadTruc: - return "Bad Truncation" - case DNSResponseCodeBadCookie: - return "Bad Cookie" - } -} - -// DNSOpCode defines a set of different operation types. -type DNSOpCode uint8 - -// DNSOpCode known values. -const ( - DNSOpCodeQuery DNSOpCode = 0 // Query [RFC1035] - DNSOpCodeIQuery DNSOpCode = 1 // Inverse Query Obsolete [RFC3425] - DNSOpCodeStatus DNSOpCode = 2 // Status [RFC1035] - DNSOpCodeNotify DNSOpCode = 4 // Notify [RFC1996] - DNSOpCodeUpdate DNSOpCode = 5 // Update [RFC2136] -) - -func (doc DNSOpCode) String() string { - switch doc { - default: - return "Unknown" - case DNSOpCodeQuery: - return "Query" - case DNSOpCodeIQuery: - return "Inverse Query" - case DNSOpCodeStatus: - return "Status" - case DNSOpCodeNotify: - return "Notify" - case DNSOpCodeUpdate: - return "Update" - } -} - -// DNS is specified in RFC 1034 / RFC 1035 -// +---------------------+ -// | Header | -// +---------------------+ -// | Question | the question for the name server -// +---------------------+ -// | Answer | RRs answering the question -// +---------------------+ -// | Authority | RRs pointing toward an authority -// +---------------------+ -// | Additional | RRs holding additional information -// +---------------------+ -// -// DNS Header -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | ID | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// |QR| Opcode |AA|TC|RD|RA| Z | RCODE | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | QDCOUNT | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | ANCOUNT | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | NSCOUNT | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | ARCOUNT | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -// DNS contains data from a single Domain Name Service packet. -type DNS struct { - BaseLayer - - // Header fields - ID uint16 - QR bool - OpCode DNSOpCode - - AA bool // Authoritative answer - TC bool // Truncated - RD bool // Recursion desired - RA bool // Recursion available - Z uint8 // Reserved for future use - - ResponseCode DNSResponseCode - QDCount uint16 // Number of questions to expect - ANCount uint16 // Number of answers to expect - NSCount uint16 // Number of authorities to expect - ARCount uint16 // Number of additional records to expect - - // Entries - Questions []DNSQuestion - Answers []DNSResourceRecord - Authorities []DNSResourceRecord - Additionals []DNSResourceRecord - - // buffer for doing name decoding. We use a single reusable buffer to avoid - // name decoding on a single object via multiple DecodeFromBytes calls - // requiring constant allocation of small byte slices. - buffer []byte -} - -// LayerType returns gopacket.LayerTypeDNS. -func (d *DNS) LayerType() gopacket.LayerType { return LayerTypeDNS } - -// decodeDNS decodes the byte slice into a DNS type. It also -// setups the application Layer in PacketBuilder. -func decodeDNS(data []byte, p gopacket.PacketBuilder) error { - d := &DNS{} - err := d.DecodeFromBytes(data, p) - if err != nil { - return err - } - p.AddLayer(d) - p.SetApplicationLayer(d) - return nil -} - -// DecodeFromBytes decodes the slice into the DNS struct. -func (d *DNS) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - d.buffer = d.buffer[:0] - - if len(data) < 12 { - df.SetTruncated() - return errDNSPacketTooShort - } - - // since there are no further layers, the baselayer's content is - // pointing to this layer - d.BaseLayer = BaseLayer{Contents: data[:len(data)]} - d.ID = binary.BigEndian.Uint16(data[:2]) - d.QR = data[2]&0x80 != 0 - d.OpCode = DNSOpCode(data[2]>>3) & 0x0F - d.AA = data[2]&0x04 != 0 - d.TC = data[2]&0x02 != 0 - d.RD = data[2]&0x01 != 0 - d.RA = data[3]&0x80 != 0 - d.Z = uint8(data[3]>>4) & 0x7 - d.ResponseCode = DNSResponseCode(data[3] & 0xF) - d.QDCount = binary.BigEndian.Uint16(data[4:6]) - d.ANCount = binary.BigEndian.Uint16(data[6:8]) - d.NSCount = binary.BigEndian.Uint16(data[8:10]) - d.ARCount = binary.BigEndian.Uint16(data[10:12]) - - d.Questions = d.Questions[:0] - d.Answers = d.Answers[:0] - d.Authorities = d.Authorities[:0] - d.Additionals = d.Additionals[:0] - - offset := 12 - var err error - for i := 0; i < int(d.QDCount); i++ { - var q DNSQuestion - if offset, err = q.decode(data, offset, df, &d.buffer); err != nil { - return err - } - d.Questions = append(d.Questions, q) - } - - // For some horrible reason, if we do the obvious thing in this loop: - // var r DNSResourceRecord - // if blah := r.decode(blah); err != nil { - // return err - // } - // d.Foo = append(d.Foo, r) - // the Go compiler thinks that 'r' escapes to the heap, causing a malloc for - // every Answer, Authority, and Additional. To get around this, we do - // something really silly: we append an empty resource record to our slice, - // then use the last value in the slice to call decode. Since the value is - // already in the slice, there's no WAY it can escape... on the other hand our - // code is MUCH uglier :( - for i := 0; i < int(d.ANCount); i++ { - d.Answers = append(d.Answers, DNSResourceRecord{}) - if offset, err = d.Answers[i].decode(data, offset, df, &d.buffer); err != nil { - d.Answers = d.Answers[:i] // strip off erroneous value - return err - } - } - for i := 0; i < int(d.NSCount); i++ { - d.Authorities = append(d.Authorities, DNSResourceRecord{}) - if offset, err = d.Authorities[i].decode(data, offset, df, &d.buffer); err != nil { - d.Authorities = d.Authorities[:i] // strip off erroneous value - return err - } - } - for i := 0; i < int(d.ARCount); i++ { - d.Additionals = append(d.Additionals, DNSResourceRecord{}) - if offset, err = d.Additionals[i].decode(data, offset, df, &d.buffer); err != nil { - d.Additionals = d.Additionals[:i] // strip off erroneous value - return err - } - // extract extended RCODE from OPT RRs, RFC 6891 section 6.1.3 - if d.Additionals[i].Type == DNSTypeOPT { - d.ResponseCode = DNSResponseCode(uint8(d.ResponseCode) | uint8(d.Additionals[i].TTL>>20&0xF0)) - } - } - - if uint16(len(d.Questions)) != d.QDCount { - return errDecodeQueryBadQDCount - } else if uint16(len(d.Answers)) != d.ANCount { - return errDecodeQueryBadANCount - } else if uint16(len(d.Authorities)) != d.NSCount { - return errDecodeQueryBadNSCount - } else if uint16(len(d.Additionals)) != d.ARCount { - return errDecodeQueryBadARCount - } - return nil -} - -// CanDecode implements gopacket.DecodingLayer. -func (d *DNS) CanDecode() gopacket.LayerClass { - return LayerTypeDNS -} - -// NextLayerType implements gopacket.DecodingLayer. -func (d *DNS) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -// Payload returns nil. -func (d *DNS) Payload() []byte { - return nil -} - -func b2i(b bool) int { - if b { - return 1 - } - return 0 -} - -func recSize(rr *DNSResourceRecord) int { - switch rr.Type { - case DNSTypeA: - return 4 - case DNSTypeAAAA: - return 16 - case DNSTypeNS: - return len(rr.NS) + 2 - case DNSTypeCNAME: - return len(rr.CNAME) + 2 - case DNSTypePTR: - return len(rr.PTR) + 2 - case DNSTypeSOA: - return len(rr.SOA.MName) + 2 + len(rr.SOA.RName) + 2 + 20 - case DNSTypeMX: - return 2 + len(rr.MX.Name) + 2 - case DNSTypeTXT: - l := len(rr.TXTs) - for _, txt := range rr.TXTs { - l += len(txt) - } - return l - case DNSTypeSRV: - return 6 + len(rr.SRV.Name) + 2 - case DNSTypeURI: - return 4 + len(rr.URI.Target) - case DNSTypeOPT: - l := len(rr.OPT) * 4 - for _, opt := range rr.OPT { - l += len(opt.Data) - } - return l - } - - return 0 -} - -func computeSize(recs []DNSResourceRecord) int { - sz := 0 - for _, rr := range recs { - v := len(rr.Name) - - if v == 0 { - sz += v + 11 - } else { - sz += v + 12 - } - - sz += recSize(&rr) - } - return sz -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -func (d *DNS) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - dsz := 0 - for _, q := range d.Questions { - dsz += len(q.Name) + 6 - } - dsz += computeSize(d.Answers) - dsz += computeSize(d.Authorities) - dsz += computeSize(d.Additionals) - - bytes, err := b.PrependBytes(12 + dsz) - if err != nil { - return err - } - binary.BigEndian.PutUint16(bytes, d.ID) - bytes[2] = byte((b2i(d.QR) << 7) | (int(d.OpCode) << 3) | (b2i(d.AA) << 2) | (b2i(d.TC) << 1) | b2i(d.RD)) - bytes[3] = byte((b2i(d.RA) << 7) | (int(d.Z) << 4) | int(d.ResponseCode)) - - if opts.FixLengths { - d.QDCount = uint16(len(d.Questions)) - d.ANCount = uint16(len(d.Answers)) - d.NSCount = uint16(len(d.Authorities)) - d.ARCount = uint16(len(d.Additionals)) - } - binary.BigEndian.PutUint16(bytes[4:], d.QDCount) - binary.BigEndian.PutUint16(bytes[6:], d.ANCount) - binary.BigEndian.PutUint16(bytes[8:], d.NSCount) - binary.BigEndian.PutUint16(bytes[10:], d.ARCount) - - off := 12 - for _, qd := range d.Questions { - n := qd.encode(bytes, off) - off += n - } - - for i := range d.Answers { - // done this way so we can modify DNSResourceRecord to fix - // lengths if requested - qa := &d.Answers[i] - n, err := qa.encode(bytes, off, opts) - if err != nil { - return err - } - off += n - } - - for i := range d.Authorities { - qa := &d.Authorities[i] - n, err := qa.encode(bytes, off, opts) - if err != nil { - return err - } - off += n - } - for i := range d.Additionals { - qa := &d.Additionals[i] - n, err := qa.encode(bytes, off, opts) - if err != nil { - return err - } - off += n - } - - return nil -} - -const maxRecursionLevel = 255 - -func decodeName(data []byte, offset int, buffer *[]byte, level int) ([]byte, int, error) { - if level > maxRecursionLevel { - return nil, 0, errMaxRecursion - } else if offset >= len(data) { - return nil, 0, errDNSNameOffsetTooHigh - } else if offset < 0 { - return nil, 0, errDNSNameOffsetNegative - } - start := len(*buffer) - index := offset - if data[index] == 0x00 { - return nil, index + 1, nil - } -loop: - for data[index] != 0x00 { - switch data[index] & 0xc0 { - default: - /* RFC 1035 - A domain name represented as a sequence of labels, where - each label consists of a length octet followed by that - number of octets. The domain name terminates with the - zero length octet for the null label of the root. Note - that this field may be an odd number of octets; no - padding is used. - */ - index2 := index + int(data[index]) + 1 - if index2-offset > 255 { - return nil, 0, errDNSNameTooLong - } else if index2 < index+1 || index2 > len(data) { - return nil, 0, errDNSNameInvalidIndex - } - *buffer = append(*buffer, '.') - *buffer = append(*buffer, data[index+1:index2]...) - index = index2 - - case 0xc0: - /* RFC 1035 - The pointer takes the form of a two octet sequence. - - The first two bits are ones. This allows a pointer to - be distinguished from a label, since the label must - begin with two zero bits because labels are restricted - to 63 octets or less. (The 10 and 01 combinations are - reserved for future use.) The OFFSET field specifies - an offset from the start of the message (i.e., the - first octet of the ID field in the domain header). A - zero offset specifies the first byte of the ID field, - etc. - - The compression scheme allows a domain name in a message to be - represented as either: - - a sequence of labels ending in a zero octet - - a pointer - - a sequence of labels ending with a pointer - */ - if index+2 > len(data) { - return nil, 0, errDNSPointerOffsetTooHigh - } - offsetp := int(binary.BigEndian.Uint16(data[index:index+2]) & 0x3fff) - if offsetp > len(data) { - return nil, 0, errDNSPointerOffsetTooHigh - } - // This looks a little tricky, but actually isn't. Because of how - // decodeName is written, calling it appends the decoded name to the - // current buffer. We already have the start of the buffer, then, so - // once this call is done buffer[start:] will contain our full name. - _, _, err := decodeName(data, offsetp, buffer, level+1) - if err != nil { - return nil, 0, err - } - index++ // pointer is two bytes, so add an extra byte here. - break loop - /* EDNS, or other DNS option ? */ - case 0x40: // RFC 2673 - return nil, 0, fmt.Errorf("qname '0x40' - RFC 2673 unsupported yet (data=%x index=%d)", - data[index], index) - - case 0x80: - return nil, 0, fmt.Errorf("qname '0x80' unsupported yet (data=%x index=%d)", - data[index], index) - } - if index >= len(data) { - return nil, 0, errDNSIndexOutOfRange - } - } - if len(*buffer) <= start { - return (*buffer)[start:], index + 1, nil - } - return (*buffer)[start+1:], index + 1, nil -} - -// DNSQuestion wraps a single request (question) within a DNS query. -type DNSQuestion struct { - Name []byte - Type DNSType - Class DNSClass -} - -func (q *DNSQuestion) decode(data []byte, offset int, df gopacket.DecodeFeedback, buffer *[]byte) (int, error) { - name, endq, err := decodeName(data, offset, buffer, 1) - if err != nil { - return 0, err - } - - q.Name = name - q.Type = DNSType(binary.BigEndian.Uint16(data[endq : endq+2])) - q.Class = DNSClass(binary.BigEndian.Uint16(data[endq+2 : endq+4])) - - return endq + 4, nil -} - -func (q *DNSQuestion) encode(data []byte, offset int) int { - noff := encodeName(q.Name, data, offset) - nSz := noff - offset - binary.BigEndian.PutUint16(data[noff:], uint16(q.Type)) - binary.BigEndian.PutUint16(data[noff+2:], uint16(q.Class)) - return nSz + 4 -} - -// DNSResourceRecord -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | | -// / / -// / NAME / -// | | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | TYPE | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | CLASS | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | TTL | -// | | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | RDLENGTH | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--| -// / RDATA / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -// DNSResourceRecord wraps the data from a single DNS resource within a -// response. -type DNSResourceRecord struct { - // Header - Name []byte - Type DNSType - Class DNSClass - TTL uint32 - - // RDATA Raw Values - DataLength uint16 - Data []byte - - // RDATA Decoded Values - IP net.IP - NS, CNAME, PTR []byte - TXTs [][]byte - SOA DNSSOA - SRV DNSSRV - MX DNSMX - OPT []DNSOPT // See RFC 6891, section 6.1.2 - URI DNSURI - - // Undecoded TXT for backward compatibility - TXT []byte -} - -// decode decodes the resource record, returning the total length of the record. -func (rr *DNSResourceRecord) decode(data []byte, offset int, df gopacket.DecodeFeedback, buffer *[]byte) (int, error) { - name, endq, err := decodeName(data, offset, buffer, 1) - if err != nil { - return 0, err - } - - rr.Name = name - rr.Type = DNSType(binary.BigEndian.Uint16(data[endq : endq+2])) - rr.Class = DNSClass(binary.BigEndian.Uint16(data[endq+2 : endq+4])) - rr.TTL = binary.BigEndian.Uint32(data[endq+4 : endq+8]) - rr.DataLength = binary.BigEndian.Uint16(data[endq+8 : endq+10]) - end := endq + 10 + int(rr.DataLength) - if end > len(data) { - return 0, errDecodeRecordLength - } - rr.Data = data[endq+10 : end] - - if err = rr.decodeRData(data[:end], endq+10, buffer); err != nil { - return 0, err - } - - return endq + 10 + int(rr.DataLength), nil -} - -func encodeName(name []byte, data []byte, offset int) int { - l := 0 - for i := range name { - if name[i] == '.' { - data[offset+i-l] = byte(l) - l = 0 - } else { - // skip one to write the length - data[offset+i+1] = name[i] - l++ - } - } - - if len(name) == 0 { - data[offset] = 0x00 // terminal - return offset + 1 - } - - // length for final portion - data[offset+len(name)-l] = byte(l) - data[offset+len(name)+1] = 0x00 // terminal - return offset + len(name) + 2 -} - -func (rr *DNSResourceRecord) encode(data []byte, offset int, opts gopacket.SerializeOptions) (int, error) { - - noff := encodeName(rr.Name, data, offset) - nSz := noff - offset - - binary.BigEndian.PutUint16(data[noff:], uint16(rr.Type)) - binary.BigEndian.PutUint16(data[noff+2:], uint16(rr.Class)) - binary.BigEndian.PutUint32(data[noff+4:], uint32(rr.TTL)) - - switch rr.Type { - case DNSTypeA: - copy(data[noff+10:], rr.IP.To4()) - case DNSTypeAAAA: - copy(data[noff+10:], rr.IP) - case DNSTypeNS: - encodeName(rr.NS, data, noff+10) - case DNSTypeCNAME: - encodeName(rr.CNAME, data, noff+10) - case DNSTypePTR: - encodeName(rr.PTR, data, noff+10) - case DNSTypeSOA: - noff2 := encodeName(rr.SOA.MName, data, noff+10) - noff2 = encodeName(rr.SOA.RName, data, noff2) - binary.BigEndian.PutUint32(data[noff2:], rr.SOA.Serial) - binary.BigEndian.PutUint32(data[noff2+4:], rr.SOA.Refresh) - binary.BigEndian.PutUint32(data[noff2+8:], rr.SOA.Retry) - binary.BigEndian.PutUint32(data[noff2+12:], rr.SOA.Expire) - binary.BigEndian.PutUint32(data[noff2+16:], rr.SOA.Minimum) - case DNSTypeMX: - binary.BigEndian.PutUint16(data[noff+10:], rr.MX.Preference) - encodeName(rr.MX.Name, data, noff+12) - case DNSTypeTXT: - noff2 := noff + 10 - for _, txt := range rr.TXTs { - data[noff2] = byte(len(txt)) - copy(data[noff2+1:], txt) - noff2 += 1 + len(txt) - } - case DNSTypeSRV: - binary.BigEndian.PutUint16(data[noff+10:], rr.SRV.Priority) - binary.BigEndian.PutUint16(data[noff+12:], rr.SRV.Weight) - binary.BigEndian.PutUint16(data[noff+14:], rr.SRV.Port) - encodeName(rr.SRV.Name, data, noff+16) - case DNSTypeURI: - binary.BigEndian.PutUint16(data[noff+10:], rr.URI.Priority) - binary.BigEndian.PutUint16(data[noff+12:], rr.URI.Weight) - copy(data[noff+14:], rr.URI.Target) - case DNSTypeOPT: - noff2 := noff + 10 - for _, opt := range rr.OPT { - binary.BigEndian.PutUint16(data[noff2:], uint16(opt.Code)) - binary.BigEndian.PutUint16(data[noff2+2:], uint16(len(opt.Data))) - copy(data[noff2+4:], opt.Data) - noff2 += 4 + len(opt.Data) - } - default: - return 0, fmt.Errorf("serializing resource record of type %v not supported", rr.Type) - } - - // DataLength - dSz := recSize(rr) - binary.BigEndian.PutUint16(data[noff+8:], uint16(dSz)) - - if opts.FixLengths { - rr.DataLength = uint16(dSz) - } - - return nSz + 10 + dSz, nil -} - -func (rr *DNSResourceRecord) String() string { - - if rr.Type == DNSTypeOPT { - opts := make([]string, len(rr.OPT)) - for i, opt := range rr.OPT { - opts[i] = opt.String() - } - return "OPT " + strings.Join(opts, ",") - } - if rr.Type == DNSTypeURI { - return fmt.Sprintf("URI %d %d %s", rr.URI.Priority, rr.URI.Weight, string(rr.URI.Target)) - } - if rr.Class == DNSClassIN { - switch rr.Type { - case DNSTypeA, DNSTypeAAAA: - return rr.IP.String() - case DNSTypeNS: - return "NS " + string(rr.NS) - case DNSTypeCNAME: - return "CNAME " + string(rr.CNAME) - case DNSTypePTR: - return "PTR " + string(rr.PTR) - case DNSTypeTXT: - return "TXT " + string(rr.TXT) - } - } - - return fmt.Sprintf("<%v, %v>", rr.Class, rr.Type) -} - -func decodeCharacterStrings(data []byte) ([][]byte, error) { - strings := make([][]byte, 0, 1) - end := len(data) - for index, index2 := 0, 0; index != end; index = index2 { - index2 = index + 1 + int(data[index]) // index increases by 1..256 and does not overflow - if index2 > end { - return nil, errCharStringMissData - } - strings = append(strings, data[index+1:index2]) - } - return strings, nil -} - -func decodeOPTs(data []byte, offset int) ([]DNSOPT, error) { - allOPT := []DNSOPT{} - end := len(data) - - if offset == end { - return allOPT, nil // There is no data to read - } - - if offset+4 > end { - return allOPT, fmt.Errorf("DNSOPT record is of length %d, it should be at least length 4", end-offset) - } - - for i := offset; i < end; { - opt := DNSOPT{} - if len(data) < i+4 { - return allOPT, fmt.Errorf("Malformed DNSOPT record. Length %d < %d", len(data), i+4) - } - opt.Code = DNSOptionCode(binary.BigEndian.Uint16(data[i : i+2])) - l := binary.BigEndian.Uint16(data[i+2 : i+4]) - if i+4+int(l) > end { - return allOPT, fmt.Errorf("Malformed DNSOPT record. The length (%d) field implies a packet larger than the one received", l) - } - opt.Data = data[i+4 : i+4+int(l)] - allOPT = append(allOPT, opt) - i += int(l) + 4 - } - return allOPT, nil -} - -func (rr *DNSResourceRecord) decodeRData(data []byte, offset int, buffer *[]byte) error { - switch rr.Type { - case DNSTypeA: - rr.IP = rr.Data - case DNSTypeAAAA: - rr.IP = rr.Data - case DNSTypeTXT, DNSTypeHINFO: - rr.TXT = rr.Data - txts, err := decodeCharacterStrings(rr.Data) - if err != nil { - return err - } - rr.TXTs = txts - case DNSTypeNS: - name, _, err := decodeName(data, offset, buffer, 1) - if err != nil { - return err - } - rr.NS = name - case DNSTypeCNAME: - name, _, err := decodeName(data, offset, buffer, 1) - if err != nil { - return err - } - rr.CNAME = name - case DNSTypePTR: - name, _, err := decodeName(data, offset, buffer, 1) - if err != nil { - return err - } - rr.PTR = name - case DNSTypeSOA: - name, endq, err := decodeName(data, offset, buffer, 1) - if err != nil { - return err - } - rr.SOA.MName = name - name, endq, err = decodeName(data, endq, buffer, 1) - if err != nil { - return err - } - if len(data) < endq+20 { - return errors.New("SOA too small") - } - rr.SOA.RName = name - rr.SOA.Serial = binary.BigEndian.Uint32(data[endq : endq+4]) - rr.SOA.Refresh = binary.BigEndian.Uint32(data[endq+4 : endq+8]) - rr.SOA.Retry = binary.BigEndian.Uint32(data[endq+8 : endq+12]) - rr.SOA.Expire = binary.BigEndian.Uint32(data[endq+12 : endq+16]) - rr.SOA.Minimum = binary.BigEndian.Uint32(data[endq+16 : endq+20]) - case DNSTypeMX: - if len(data) < offset+2 { - return errors.New("MX too small") - } - rr.MX.Preference = binary.BigEndian.Uint16(data[offset : offset+2]) - name, _, err := decodeName(data, offset+2, buffer, 1) - if err != nil { - return err - } - rr.MX.Name = name - case DNSTypeURI: - if len(rr.Data) < 4 { - return errors.New("URI too small") - } - rr.URI.Priority = binary.BigEndian.Uint16(data[offset : offset+2]) - rr.URI.Weight = binary.BigEndian.Uint16(data[offset+2 : offset+4]) - rr.URI.Target = rr.Data[4:] - case DNSTypeSRV: - if len(data) < offset+6 { - return errors.New("SRV too small") - } - rr.SRV.Priority = binary.BigEndian.Uint16(data[offset : offset+2]) - rr.SRV.Weight = binary.BigEndian.Uint16(data[offset+2 : offset+4]) - rr.SRV.Port = binary.BigEndian.Uint16(data[offset+4 : offset+6]) - name, _, err := decodeName(data, offset+6, buffer, 1) - if err != nil { - return err - } - rr.SRV.Name = name - case DNSTypeOPT: - allOPT, err := decodeOPTs(data, offset) - if err != nil { - return err - } - rr.OPT = allOPT - } - return nil -} - -// DNSSOA is a Start of Authority record. Each domain requires a SOA record at -// the cutover where a domain is delegated from its parent. -type DNSSOA struct { - MName, RName []byte - Serial, Refresh, Retry, Expire, Minimum uint32 -} - -// DNSSRV is a Service record, defining a location (hostname/port) of a -// server/service. -type DNSSRV struct { - Priority, Weight, Port uint16 - Name []byte -} - -// DNSMX is a mail exchange record, defining a mail server for a recipient's -// domain. -type DNSMX struct { - Preference uint16 - Name []byte -} - -// DNSURI is a URI record, defining a target (URI) of a server/service -type DNSURI struct { - Priority, Weight uint16 - Target []byte -} - -// DNSOptionCode represents the code of a DNS Option, see RFC6891, section 6.1.2 -type DNSOptionCode uint16 - -func (doc DNSOptionCode) String() string { - switch doc { - default: - return "Unknown" - case DNSOptionCodeNSID: - return "NSID" - case DNSOptionCodeDAU: - return "DAU" - case DNSOptionCodeDHU: - return "DHU" - case DNSOptionCodeN3U: - return "N3U" - case DNSOptionCodeEDNSClientSubnet: - return "EDNSClientSubnet" - case DNSOptionCodeEDNSExpire: - return "EDNSExpire" - case DNSOptionCodeCookie: - return "Cookie" - case DNSOptionCodeEDNSKeepAlive: - return "EDNSKeepAlive" - case DNSOptionCodePadding: - return "CodePadding" - case DNSOptionCodeChain: - return "CodeChain" - case DNSOptionCodeEDNSKeyTag: - return "CodeEDNSKeyTag" - case DNSOptionCodeEDNSClientTag: - return "EDNSClientTag" - case DNSOptionCodeEDNSServerTag: - return "EDNSServerTag" - case DNSOptionCodeDeviceID: - return "DeviceID" - } -} - -// DNSOptionCode known values. See IANA -const ( - DNSOptionCodeNSID DNSOptionCode = 3 - DNSOptionCodeDAU DNSOptionCode = 5 - DNSOptionCodeDHU DNSOptionCode = 6 - DNSOptionCodeN3U DNSOptionCode = 7 - DNSOptionCodeEDNSClientSubnet DNSOptionCode = 8 - DNSOptionCodeEDNSExpire DNSOptionCode = 9 - DNSOptionCodeCookie DNSOptionCode = 10 - DNSOptionCodeEDNSKeepAlive DNSOptionCode = 11 - DNSOptionCodePadding DNSOptionCode = 12 - DNSOptionCodeChain DNSOptionCode = 13 - DNSOptionCodeEDNSKeyTag DNSOptionCode = 14 - DNSOptionCodeEDNSClientTag DNSOptionCode = 16 - DNSOptionCodeEDNSServerTag DNSOptionCode = 17 - DNSOptionCodeDeviceID DNSOptionCode = 26946 -) - -// DNSOPT is a DNS Option, see RFC6891, section 6.1.2 -type DNSOPT struct { - Code DNSOptionCode - Data []byte -} - -func (opt DNSOPT) String() string { - return fmt.Sprintf("%s=%x", opt.Code, opt.Data) -} - -var ( - errMaxRecursion = errors.New("max DNS recursion level hit") - - errDNSNameOffsetTooHigh = errors.New("dns name offset too high") - errDNSNameOffsetNegative = errors.New("dns name offset is negative") - errDNSPacketTooShort = errors.New("DNS packet too short") - errDNSNameTooLong = errors.New("dns name is too long") - errDNSNameInvalidIndex = errors.New("dns name uncomputable: invalid index") - errDNSPointerOffsetTooHigh = errors.New("dns offset pointer too high") - errDNSIndexOutOfRange = errors.New("dns index walked out of range") - errDNSNameHasNoData = errors.New("no dns data found for name") - - errCharStringMissData = errors.New("Insufficient data for a ") - - errDecodeRecordLength = errors.New("resource record length exceeds data") - - errDecodeQueryBadQDCount = errors.New("Invalid query decoding, not the right number of questions") - errDecodeQueryBadANCount = errors.New("Invalid query decoding, not the right number of answers") - errDecodeQueryBadNSCount = errors.New("Invalid query decoding, not the right number of authorities") - errDecodeQueryBadARCount = errors.New("Invalid query decoding, not the right number of additionals info") -) diff --git a/vendor/github.com/google/gopacket/layers/doc.go b/vendor/github.com/google/gopacket/layers/doc.go deleted file mode 100644 index 3c882c3fa0..0000000000 --- a/vendor/github.com/google/gopacket/layers/doc.go +++ /dev/null @@ -1,61 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -/* -Package layers provides decoding layers for many common protocols. - -The layers package contains decode implementations for a number of different -types of packet layers. Users of gopacket will almost always want to also use -layers to actually decode packet data into useful pieces. To see the set of -protocols that gopacket/layers is currently able to decode, -look at the set of LayerTypes defined in the Variables sections. The -layers package also defines endpoints for many of the common packet layers -that have source/destination addresses associated with them, for example IPv4/6 -(IPs) and TCP/UDP (ports). -Finally, layers contains a number of useful enumerations (IPProtocol, -EthernetType, LinkType, PPPType, etc...). Many of these implement the -gopacket.Decoder interface, so they can be passed into gopacket as decoders. - -Most common protocol layers are named using acronyms or other industry-common -names (IPv4, TCP, PPP). Some of the less common ones have their names expanded -(CiscoDiscoveryProtocol). -For certain protocols, sub-parts of the protocol are split out into their own -layers (SCTP, for example). This is done mostly in cases where portions of the -protocol may fulfill the capabilities of interesting layers (SCTPData implements -ApplicationLayer, while base SCTP implements TransportLayer), or possibly -because splitting a protocol into a few layers makes decoding easier. - -This package is meant to be used with its parent, -http://github.com/google/gopacket. - -Port Types - -Instead of using raw uint16 or uint8 values for ports, we use a different port -type for every protocol, for example TCPPort and UDPPort. This allows us to -override string behavior for each port, which we do by setting up port name -maps (TCPPortNames, UDPPortNames, etc...). Well-known ports are annotated with -their protocol names, and their String function displays these names: - - p := TCPPort(80) - fmt.Printf("Number: %d String: %v", p, p) - // Prints: "Number: 80 String: 80(http)" - -Modifying Decode Behavior - -layers links together decoding through its enumerations. For example, after -decoding layer type Ethernet, it uses Ethernet.EthernetType as its next decoder. -All enumerations that act as decoders, like EthernetType, can be modified by -users depending on their preferences. For example, if you have a spiffy new -IPv4 decoder that works way better than the one built into layers, you can do -this: - - var mySpiffyIPv4Decoder gopacket.Decoder = ... - layers.EthernetTypeMetadata[EthernetTypeIPv4].DecodeWith = mySpiffyIPv4Decoder - -This will make all future ethernet packets use your new decoder to decode IPv4 -packets, instead of the built-in decoder used by gopacket. -*/ -package layers diff --git a/vendor/github.com/google/gopacket/layers/dot11.go b/vendor/github.com/google/gopacket/layers/dot11.go deleted file mode 100644 index 3e64910610..0000000000 --- a/vendor/github.com/google/gopacket/layers/dot11.go +++ /dev/null @@ -1,2118 +0,0 @@ -// Copyright 2014 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -// See http://standards.ieee.org/findstds/standard/802.11-2012.html for info on -// all of the layers in this file. - -package layers - -import ( - "bytes" - "encoding/binary" - "fmt" - "hash/crc32" - "net" - - "github.com/google/gopacket" -) - -// Dot11Flags contains the set of 8 flags in the IEEE 802.11 frame control -// header, all in one place. -type Dot11Flags uint8 - -const ( - Dot11FlagsToDS Dot11Flags = 1 << iota - Dot11FlagsFromDS - Dot11FlagsMF - Dot11FlagsRetry - Dot11FlagsPowerManagement - Dot11FlagsMD - Dot11FlagsWEP - Dot11FlagsOrder -) - -func (d Dot11Flags) ToDS() bool { - return d&Dot11FlagsToDS != 0 -} -func (d Dot11Flags) FromDS() bool { - return d&Dot11FlagsFromDS != 0 -} -func (d Dot11Flags) MF() bool { - return d&Dot11FlagsMF != 0 -} -func (d Dot11Flags) Retry() bool { - return d&Dot11FlagsRetry != 0 -} -func (d Dot11Flags) PowerManagement() bool { - return d&Dot11FlagsPowerManagement != 0 -} -func (d Dot11Flags) MD() bool { - return d&Dot11FlagsMD != 0 -} -func (d Dot11Flags) WEP() bool { - return d&Dot11FlagsWEP != 0 -} -func (d Dot11Flags) Order() bool { - return d&Dot11FlagsOrder != 0 -} - -// String provides a human readable string for Dot11Flags. -// This string is possibly subject to change over time; if you're storing this -// persistently, you should probably store the Dot11Flags value, not its string. -func (a Dot11Flags) String() string { - var out bytes.Buffer - if a.ToDS() { - out.WriteString("TO-DS,") - } - if a.FromDS() { - out.WriteString("FROM-DS,") - } - if a.MF() { - out.WriteString("MF,") - } - if a.Retry() { - out.WriteString("Retry,") - } - if a.PowerManagement() { - out.WriteString("PowerManagement,") - } - if a.MD() { - out.WriteString("MD,") - } - if a.WEP() { - out.WriteString("WEP,") - } - if a.Order() { - out.WriteString("Order,") - } - - if length := out.Len(); length > 0 { - return string(out.Bytes()[:length-1]) // strip final comma - } - return "" -} - -type Dot11Reason uint16 - -// TODO: Verify these reasons, and append more reasons if necessary. - -const ( - Dot11ReasonReserved Dot11Reason = 1 - Dot11ReasonUnspecified Dot11Reason = 2 - Dot11ReasonAuthExpired Dot11Reason = 3 - Dot11ReasonDeauthStLeaving Dot11Reason = 4 - Dot11ReasonInactivity Dot11Reason = 5 - Dot11ReasonApFull Dot11Reason = 6 - Dot11ReasonClass2FromNonAuth Dot11Reason = 7 - Dot11ReasonClass3FromNonAss Dot11Reason = 8 - Dot11ReasonDisasStLeaving Dot11Reason = 9 - Dot11ReasonStNotAuth Dot11Reason = 10 -) - -// String provides a human readable string for Dot11Reason. -// This string is possibly subject to change over time; if you're storing this -// persistently, you should probably store the Dot11Reason value, not its string. -func (a Dot11Reason) String() string { - switch a { - case Dot11ReasonReserved: - return "Reserved" - case Dot11ReasonUnspecified: - return "Unspecified" - case Dot11ReasonAuthExpired: - return "Auth. expired" - case Dot11ReasonDeauthStLeaving: - return "Deauth. st. leaving" - case Dot11ReasonInactivity: - return "Inactivity" - case Dot11ReasonApFull: - return "Ap. full" - case Dot11ReasonClass2FromNonAuth: - return "Class2 from non auth." - case Dot11ReasonClass3FromNonAss: - return "Class3 from non ass." - case Dot11ReasonDisasStLeaving: - return "Disass st. leaving" - case Dot11ReasonStNotAuth: - return "St. not auth." - default: - return "Unknown reason" - } -} - -type Dot11Status uint16 - -const ( - Dot11StatusSuccess Dot11Status = 0 - Dot11StatusFailure Dot11Status = 1 // Unspecified failure - Dot11StatusCannotSupportAllCapabilities Dot11Status = 10 // Cannot support all requested capabilities in the Capability Information field - Dot11StatusInabilityExistsAssociation Dot11Status = 11 // Reassociation denied due to inability to confirm that association exists - Dot11StatusAssociationDenied Dot11Status = 12 // Association denied due to reason outside the scope of this standard - Dot11StatusAlgorithmUnsupported Dot11Status = 13 // Responding station does not support the specified authentication algorithm - Dot11StatusOufOfExpectedSequence Dot11Status = 14 // Received an Authentication frame with authentication transaction sequence number out of expected sequence - Dot11StatusChallengeFailure Dot11Status = 15 // Authentication rejected because of challenge failure - Dot11StatusTimeout Dot11Status = 16 // Authentication rejected due to timeout waiting for next frame in sequence - Dot11StatusAPUnableToHandle Dot11Status = 17 // Association denied because AP is unable to handle additional associated stations - Dot11StatusRateUnsupported Dot11Status = 18 // Association denied due to requesting station not supporting all of the data rates in the BSSBasicRateSet parameter -) - -// String provides a human readable string for Dot11Status. -// This string is possibly subject to change over time; if you're storing this -// persistently, you should probably store the Dot11Status value, not its string. -func (a Dot11Status) String() string { - switch a { - case Dot11StatusSuccess: - return "success" - case Dot11StatusFailure: - return "failure" - case Dot11StatusCannotSupportAllCapabilities: - return "cannot-support-all-capabilities" - case Dot11StatusInabilityExistsAssociation: - return "inability-exists-association" - case Dot11StatusAssociationDenied: - return "association-denied" - case Dot11StatusAlgorithmUnsupported: - return "algorithm-unsupported" - case Dot11StatusOufOfExpectedSequence: - return "out-of-expected-sequence" - case Dot11StatusChallengeFailure: - return "challenge-failure" - case Dot11StatusTimeout: - return "timeout" - case Dot11StatusAPUnableToHandle: - return "ap-unable-to-handle" - case Dot11StatusRateUnsupported: - return "rate-unsupported" - default: - return "unknown status" - } -} - -type Dot11AckPolicy uint8 - -const ( - Dot11AckPolicyNormal Dot11AckPolicy = 0 - Dot11AckPolicyNone Dot11AckPolicy = 1 - Dot11AckPolicyNoExplicit Dot11AckPolicy = 2 - Dot11AckPolicyBlock Dot11AckPolicy = 3 -) - -// String provides a human readable string for Dot11AckPolicy. -// This string is possibly subject to change over time; if you're storing this -// persistently, you should probably store the Dot11AckPolicy value, not its string. -func (a Dot11AckPolicy) String() string { - switch a { - case Dot11AckPolicyNormal: - return "normal-ack" - case Dot11AckPolicyNone: - return "no-ack" - case Dot11AckPolicyNoExplicit: - return "no-explicit-ack" - case Dot11AckPolicyBlock: - return "block-ack" - default: - return "unknown-ack-policy" - } -} - -type Dot11Algorithm uint16 - -const ( - Dot11AlgorithmOpen Dot11Algorithm = 0 - Dot11AlgorithmSharedKey Dot11Algorithm = 1 -) - -// String provides a human readable string for Dot11Algorithm. -// This string is possibly subject to change over time; if you're storing this -// persistently, you should probably store the Dot11Algorithm value, not its string. -func (a Dot11Algorithm) String() string { - switch a { - case Dot11AlgorithmOpen: - return "open" - case Dot11AlgorithmSharedKey: - return "shared-key" - default: - return "unknown-algorithm" - } -} - -type Dot11InformationElementID uint8 - -const ( - Dot11InformationElementIDSSID Dot11InformationElementID = 0 - Dot11InformationElementIDRates Dot11InformationElementID = 1 - Dot11InformationElementIDFHSet Dot11InformationElementID = 2 - Dot11InformationElementIDDSSet Dot11InformationElementID = 3 - Dot11InformationElementIDCFSet Dot11InformationElementID = 4 - Dot11InformationElementIDTIM Dot11InformationElementID = 5 - Dot11InformationElementIDIBSSSet Dot11InformationElementID = 6 - Dot11InformationElementIDCountryInfo Dot11InformationElementID = 7 - Dot11InformationElementIDHoppingPatternParam Dot11InformationElementID = 8 - Dot11InformationElementIDHoppingPatternTable Dot11InformationElementID = 9 - Dot11InformationElementIDRequest Dot11InformationElementID = 10 - Dot11InformationElementIDQBSSLoadElem Dot11InformationElementID = 11 - Dot11InformationElementIDEDCAParamSet Dot11InformationElementID = 12 - Dot11InformationElementIDTrafficSpec Dot11InformationElementID = 13 - Dot11InformationElementIDTrafficClass Dot11InformationElementID = 14 - Dot11InformationElementIDSchedule Dot11InformationElementID = 15 - Dot11InformationElementIDChallenge Dot11InformationElementID = 16 - Dot11InformationElementIDPowerConst Dot11InformationElementID = 32 - Dot11InformationElementIDPowerCapability Dot11InformationElementID = 33 - Dot11InformationElementIDTPCRequest Dot11InformationElementID = 34 - Dot11InformationElementIDTPCReport Dot11InformationElementID = 35 - Dot11InformationElementIDSupportedChannels Dot11InformationElementID = 36 - Dot11InformationElementIDSwitchChannelAnnounce Dot11InformationElementID = 37 - Dot11InformationElementIDMeasureRequest Dot11InformationElementID = 38 - Dot11InformationElementIDMeasureReport Dot11InformationElementID = 39 - Dot11InformationElementIDQuiet Dot11InformationElementID = 40 - Dot11InformationElementIDIBSSDFS Dot11InformationElementID = 41 - Dot11InformationElementIDERPInfo Dot11InformationElementID = 42 - Dot11InformationElementIDTSDelay Dot11InformationElementID = 43 - Dot11InformationElementIDTCLASProcessing Dot11InformationElementID = 44 - Dot11InformationElementIDHTCapabilities Dot11InformationElementID = 45 - Dot11InformationElementIDQOSCapability Dot11InformationElementID = 46 - Dot11InformationElementIDERPInfo2 Dot11InformationElementID = 47 - Dot11InformationElementIDRSNInfo Dot11InformationElementID = 48 - Dot11InformationElementIDESRates Dot11InformationElementID = 50 - Dot11InformationElementIDAPChannelReport Dot11InformationElementID = 51 - Dot11InformationElementIDNeighborReport Dot11InformationElementID = 52 - Dot11InformationElementIDRCPI Dot11InformationElementID = 53 - Dot11InformationElementIDMobilityDomain Dot11InformationElementID = 54 - Dot11InformationElementIDFastBSSTrans Dot11InformationElementID = 55 - Dot11InformationElementIDTimeoutInt Dot11InformationElementID = 56 - Dot11InformationElementIDRICData Dot11InformationElementID = 57 - Dot11InformationElementIDDSERegisteredLoc Dot11InformationElementID = 58 - Dot11InformationElementIDSuppOperatingClass Dot11InformationElementID = 59 - Dot11InformationElementIDExtChanSwitchAnnounce Dot11InformationElementID = 60 - Dot11InformationElementIDHTInfo Dot11InformationElementID = 61 - Dot11InformationElementIDSecChanOffset Dot11InformationElementID = 62 - Dot11InformationElementIDBSSAverageAccessDelay Dot11InformationElementID = 63 - Dot11InformationElementIDAntenna Dot11InformationElementID = 64 - Dot11InformationElementIDRSNI Dot11InformationElementID = 65 - Dot11InformationElementIDMeasurePilotTrans Dot11InformationElementID = 66 - Dot11InformationElementIDBSSAvailAdmCapacity Dot11InformationElementID = 67 - Dot11InformationElementIDBSSACAccDelayWAPIParam Dot11InformationElementID = 68 - Dot11InformationElementIDTimeAdvertisement Dot11InformationElementID = 69 - Dot11InformationElementIDRMEnabledCapabilities Dot11InformationElementID = 70 - Dot11InformationElementIDMultipleBSSID Dot11InformationElementID = 71 - Dot11InformationElementID2040BSSCoExist Dot11InformationElementID = 72 - Dot11InformationElementID2040BSSIntChanReport Dot11InformationElementID = 73 - Dot11InformationElementIDOverlapBSSScanParam Dot11InformationElementID = 74 - Dot11InformationElementIDRICDescriptor Dot11InformationElementID = 75 - Dot11InformationElementIDManagementMIC Dot11InformationElementID = 76 - Dot11InformationElementIDEventRequest Dot11InformationElementID = 78 - Dot11InformationElementIDEventReport Dot11InformationElementID = 79 - Dot11InformationElementIDDiagnosticRequest Dot11InformationElementID = 80 - Dot11InformationElementIDDiagnosticReport Dot11InformationElementID = 81 - Dot11InformationElementIDLocationParam Dot11InformationElementID = 82 - Dot11InformationElementIDNonTransBSSIDCapability Dot11InformationElementID = 83 - Dot11InformationElementIDSSIDList Dot11InformationElementID = 84 - Dot11InformationElementIDMultipleBSSIDIndex Dot11InformationElementID = 85 - Dot11InformationElementIDFMSDescriptor Dot11InformationElementID = 86 - Dot11InformationElementIDFMSRequest Dot11InformationElementID = 87 - Dot11InformationElementIDFMSResponse Dot11InformationElementID = 88 - Dot11InformationElementIDQOSTrafficCapability Dot11InformationElementID = 89 - Dot11InformationElementIDBSSMaxIdlePeriod Dot11InformationElementID = 90 - Dot11InformationElementIDTFSRequest Dot11InformationElementID = 91 - Dot11InformationElementIDTFSResponse Dot11InformationElementID = 92 - Dot11InformationElementIDWNMSleepMode Dot11InformationElementID = 93 - Dot11InformationElementIDTIMBroadcastRequest Dot11InformationElementID = 94 - Dot11InformationElementIDTIMBroadcastResponse Dot11InformationElementID = 95 - Dot11InformationElementIDCollInterferenceReport Dot11InformationElementID = 96 - Dot11InformationElementIDChannelUsage Dot11InformationElementID = 97 - Dot11InformationElementIDTimeZone Dot11InformationElementID = 98 - Dot11InformationElementIDDMSRequest Dot11InformationElementID = 99 - Dot11InformationElementIDDMSResponse Dot11InformationElementID = 100 - Dot11InformationElementIDLinkIdentifier Dot11InformationElementID = 101 - Dot11InformationElementIDWakeupSchedule Dot11InformationElementID = 102 - Dot11InformationElementIDChannelSwitchTiming Dot11InformationElementID = 104 - Dot11InformationElementIDPTIControl Dot11InformationElementID = 105 - Dot11InformationElementIDPUBufferStatus Dot11InformationElementID = 106 - Dot11InformationElementIDInterworking Dot11InformationElementID = 107 - Dot11InformationElementIDAdvertisementProtocol Dot11InformationElementID = 108 - Dot11InformationElementIDExpBWRequest Dot11InformationElementID = 109 - Dot11InformationElementIDQOSMapSet Dot11InformationElementID = 110 - Dot11InformationElementIDRoamingConsortium Dot11InformationElementID = 111 - Dot11InformationElementIDEmergencyAlertIdentifier Dot11InformationElementID = 112 - Dot11InformationElementIDMeshConfiguration Dot11InformationElementID = 113 - Dot11InformationElementIDMeshID Dot11InformationElementID = 114 - Dot11InformationElementIDMeshLinkMetricReport Dot11InformationElementID = 115 - Dot11InformationElementIDCongestionNotification Dot11InformationElementID = 116 - Dot11InformationElementIDMeshPeeringManagement Dot11InformationElementID = 117 - Dot11InformationElementIDMeshChannelSwitchParam Dot11InformationElementID = 118 - Dot11InformationElementIDMeshAwakeWindows Dot11InformationElementID = 119 - Dot11InformationElementIDBeaconTiming Dot11InformationElementID = 120 - Dot11InformationElementIDMCCAOPSetupRequest Dot11InformationElementID = 121 - Dot11InformationElementIDMCCAOPSetupReply Dot11InformationElementID = 122 - Dot11InformationElementIDMCCAOPAdvertisement Dot11InformationElementID = 123 - Dot11InformationElementIDMCCAOPTeardown Dot11InformationElementID = 124 - Dot11InformationElementIDGateAnnouncement Dot11InformationElementID = 125 - Dot11InformationElementIDRootAnnouncement Dot11InformationElementID = 126 - Dot11InformationElementIDExtCapability Dot11InformationElementID = 127 - Dot11InformationElementIDAgereProprietary Dot11InformationElementID = 128 - Dot11InformationElementIDPathRequest Dot11InformationElementID = 130 - Dot11InformationElementIDPathReply Dot11InformationElementID = 131 - Dot11InformationElementIDPathError Dot11InformationElementID = 132 - Dot11InformationElementIDCiscoCCX1CKIPDeviceName Dot11InformationElementID = 133 - Dot11InformationElementIDCiscoCCX2 Dot11InformationElementID = 136 - Dot11InformationElementIDProxyUpdate Dot11InformationElementID = 137 - Dot11InformationElementIDProxyUpdateConfirmation Dot11InformationElementID = 138 - Dot11InformationElementIDAuthMeshPerringExch Dot11InformationElementID = 139 - Dot11InformationElementIDMIC Dot11InformationElementID = 140 - Dot11InformationElementIDDestinationURI Dot11InformationElementID = 141 - Dot11InformationElementIDUAPSDCoexistence Dot11InformationElementID = 142 - Dot11InformationElementIDWakeupSchedule80211ad Dot11InformationElementID = 143 - Dot11InformationElementIDExtendedSchedule Dot11InformationElementID = 144 - Dot11InformationElementIDSTAAvailability Dot11InformationElementID = 145 - Dot11InformationElementIDDMGTSPEC Dot11InformationElementID = 146 - Dot11InformationElementIDNextDMGATI Dot11InformationElementID = 147 - Dot11InformationElementIDDMSCapabilities Dot11InformationElementID = 148 - Dot11InformationElementIDCiscoUnknown95 Dot11InformationElementID = 149 - Dot11InformationElementIDVendor2 Dot11InformationElementID = 150 - Dot11InformationElementIDDMGOperating Dot11InformationElementID = 151 - Dot11InformationElementIDDMGBSSParamChange Dot11InformationElementID = 152 - Dot11InformationElementIDDMGBeamRefinement Dot11InformationElementID = 153 - Dot11InformationElementIDChannelMeasFeedback Dot11InformationElementID = 154 - Dot11InformationElementIDAwakeWindow Dot11InformationElementID = 157 - Dot11InformationElementIDMultiBand Dot11InformationElementID = 158 - Dot11InformationElementIDADDBAExtension Dot11InformationElementID = 159 - Dot11InformationElementIDNEXTPCPList Dot11InformationElementID = 160 - Dot11InformationElementIDPCPHandover Dot11InformationElementID = 161 - Dot11InformationElementIDDMGLinkMargin Dot11InformationElementID = 162 - Dot11InformationElementIDSwitchingStream Dot11InformationElementID = 163 - Dot11InformationElementIDSessionTransmission Dot11InformationElementID = 164 - Dot11InformationElementIDDynamicTonePairReport Dot11InformationElementID = 165 - Dot11InformationElementIDClusterReport Dot11InformationElementID = 166 - Dot11InformationElementIDRelayCapabilities Dot11InformationElementID = 167 - Dot11InformationElementIDRelayTransferParameter Dot11InformationElementID = 168 - Dot11InformationElementIDBeamlinkMaintenance Dot11InformationElementID = 169 - Dot11InformationElementIDMultipleMacSublayers Dot11InformationElementID = 170 - Dot11InformationElementIDUPID Dot11InformationElementID = 171 - Dot11InformationElementIDDMGLinkAdaptionAck Dot11InformationElementID = 172 - Dot11InformationElementIDSymbolProprietary Dot11InformationElementID = 173 - Dot11InformationElementIDMCCAOPAdvertOverview Dot11InformationElementID = 174 - Dot11InformationElementIDQuietPeriodRequest Dot11InformationElementID = 175 - Dot11InformationElementIDQuietPeriodResponse Dot11InformationElementID = 177 - Dot11InformationElementIDECPACPolicy Dot11InformationElementID = 182 - Dot11InformationElementIDClusterTimeOffset Dot11InformationElementID = 183 - Dot11InformationElementIDAntennaSectorID Dot11InformationElementID = 190 - Dot11InformationElementIDVHTCapabilities Dot11InformationElementID = 191 - Dot11InformationElementIDVHTOperation Dot11InformationElementID = 192 - Dot11InformationElementIDExtendedBSSLoad Dot11InformationElementID = 193 - Dot11InformationElementIDWideBWChannelSwitch Dot11InformationElementID = 194 - Dot11InformationElementIDVHTTxPowerEnvelope Dot11InformationElementID = 195 - Dot11InformationElementIDChannelSwitchWrapper Dot11InformationElementID = 196 - Dot11InformationElementIDOperatingModeNotification Dot11InformationElementID = 199 - Dot11InformationElementIDUPSIM Dot11InformationElementID = 200 - Dot11InformationElementIDReducedNeighborReport Dot11InformationElementID = 201 - Dot11InformationElementIDTVHTOperation Dot11InformationElementID = 202 - Dot11InformationElementIDDeviceLocation Dot11InformationElementID = 204 - Dot11InformationElementIDWhiteSpaceMap Dot11InformationElementID = 205 - Dot11InformationElementIDFineTuningMeasureParams Dot11InformationElementID = 206 - Dot11InformationElementIDVendor Dot11InformationElementID = 221 -) - -// String provides a human readable string for Dot11InformationElementID. -// This string is possibly subject to change over time; if you're storing this -// persistently, you should probably store the Dot11InformationElementID value, -// not its string. -func (a Dot11InformationElementID) String() string { - switch a { - case Dot11InformationElementIDSSID: - return "SSID parameter set" - case Dot11InformationElementIDRates: - return "Supported Rates" - case Dot11InformationElementIDFHSet: - return "FH Parameter set" - case Dot11InformationElementIDDSSet: - return "DS Parameter set" - case Dot11InformationElementIDCFSet: - return "CF Parameter set" - case Dot11InformationElementIDTIM: - return "Traffic Indication Map (TIM)" - case Dot11InformationElementIDIBSSSet: - return "IBSS Parameter set" - case Dot11InformationElementIDCountryInfo: - return "Country Information" - case Dot11InformationElementIDHoppingPatternParam: - return "Hopping Pattern Parameters" - case Dot11InformationElementIDHoppingPatternTable: - return "Hopping Pattern Table" - case Dot11InformationElementIDRequest: - return "Request" - case Dot11InformationElementIDQBSSLoadElem: - return "QBSS Load Element" - case Dot11InformationElementIDEDCAParamSet: - return "EDCA Parameter Set" - case Dot11InformationElementIDTrafficSpec: - return "Traffic Specification" - case Dot11InformationElementIDTrafficClass: - return "Traffic Classification" - case Dot11InformationElementIDSchedule: - return "Schedule" - case Dot11InformationElementIDChallenge: - return "Challenge text" - case Dot11InformationElementIDPowerConst: - return "Power Constraint" - case Dot11InformationElementIDPowerCapability: - return "Power Capability" - case Dot11InformationElementIDTPCRequest: - return "TPC Request" - case Dot11InformationElementIDTPCReport: - return "TPC Report" - case Dot11InformationElementIDSupportedChannels: - return "Supported Channels" - case Dot11InformationElementIDSwitchChannelAnnounce: - return "Channel Switch Announcement" - case Dot11InformationElementIDMeasureRequest: - return "Measurement Request" - case Dot11InformationElementIDMeasureReport: - return "Measurement Report" - case Dot11InformationElementIDQuiet: - return "Quiet" - case Dot11InformationElementIDIBSSDFS: - return "IBSS DFS" - case Dot11InformationElementIDERPInfo: - return "ERP Information" - case Dot11InformationElementIDTSDelay: - return "TS Delay" - case Dot11InformationElementIDTCLASProcessing: - return "TCLAS Processing" - case Dot11InformationElementIDHTCapabilities: - return "HT Capabilities (802.11n D1.10)" - case Dot11InformationElementIDQOSCapability: - return "QOS Capability" - case Dot11InformationElementIDERPInfo2: - return "ERP Information-2" - case Dot11InformationElementIDRSNInfo: - return "RSN Information" - case Dot11InformationElementIDESRates: - return "Extended Supported Rates" - case Dot11InformationElementIDAPChannelReport: - return "AP Channel Report" - case Dot11InformationElementIDNeighborReport: - return "Neighbor Report" - case Dot11InformationElementIDRCPI: - return "RCPI" - case Dot11InformationElementIDMobilityDomain: - return "Mobility Domain" - case Dot11InformationElementIDFastBSSTrans: - return "Fast BSS Transition" - case Dot11InformationElementIDTimeoutInt: - return "Timeout Interval" - case Dot11InformationElementIDRICData: - return "RIC Data" - case Dot11InformationElementIDDSERegisteredLoc: - return "DSE Registered Location" - case Dot11InformationElementIDSuppOperatingClass: - return "Supported Operating Classes" - case Dot11InformationElementIDExtChanSwitchAnnounce: - return "Extended Channel Switch Announcement" - case Dot11InformationElementIDHTInfo: - return "HT Information (802.11n D1.10)" - case Dot11InformationElementIDSecChanOffset: - return "Secondary Channel Offset (802.11n D1.10)" - case Dot11InformationElementIDBSSAverageAccessDelay: - return "BSS Average Access Delay" - case Dot11InformationElementIDAntenna: - return "Antenna" - case Dot11InformationElementIDRSNI: - return "RSNI" - case Dot11InformationElementIDMeasurePilotTrans: - return "Measurement Pilot Transmission" - case Dot11InformationElementIDBSSAvailAdmCapacity: - return "BSS Available Admission Capacity" - case Dot11InformationElementIDBSSACAccDelayWAPIParam: - return "BSS AC Access Delay/WAPI Parameter Set" - case Dot11InformationElementIDTimeAdvertisement: - return "Time Advertisement" - case Dot11InformationElementIDRMEnabledCapabilities: - return "RM Enabled Capabilities" - case Dot11InformationElementIDMultipleBSSID: - return "Multiple BSSID" - case Dot11InformationElementID2040BSSCoExist: - return "20/40 BSS Coexistence" - case Dot11InformationElementID2040BSSIntChanReport: - return "20/40 BSS Intolerant Channel Report" - case Dot11InformationElementIDOverlapBSSScanParam: - return "Overlapping BSS Scan Parameters" - case Dot11InformationElementIDRICDescriptor: - return "RIC Descriptor" - case Dot11InformationElementIDManagementMIC: - return "Management MIC" - case Dot11InformationElementIDEventRequest: - return "Event Request" - case Dot11InformationElementIDEventReport: - return "Event Report" - case Dot11InformationElementIDDiagnosticRequest: - return "Diagnostic Request" - case Dot11InformationElementIDDiagnosticReport: - return "Diagnostic Report" - case Dot11InformationElementIDLocationParam: - return "Location Parameters" - case Dot11InformationElementIDNonTransBSSIDCapability: - return "Non Transmitted BSSID Capability" - case Dot11InformationElementIDSSIDList: - return "SSID List" - case Dot11InformationElementIDMultipleBSSIDIndex: - return "Multiple BSSID Index" - case Dot11InformationElementIDFMSDescriptor: - return "FMS Descriptor" - case Dot11InformationElementIDFMSRequest: - return "FMS Request" - case Dot11InformationElementIDFMSResponse: - return "FMS Response" - case Dot11InformationElementIDQOSTrafficCapability: - return "QoS Traffic Capability" - case Dot11InformationElementIDBSSMaxIdlePeriod: - return "BSS Max Idle Period" - case Dot11InformationElementIDTFSRequest: - return "TFS Request" - case Dot11InformationElementIDTFSResponse: - return "TFS Response" - case Dot11InformationElementIDWNMSleepMode: - return "WNM-Sleep Mode" - case Dot11InformationElementIDTIMBroadcastRequest: - return "TIM Broadcast Request" - case Dot11InformationElementIDTIMBroadcastResponse: - return "TIM Broadcast Response" - case Dot11InformationElementIDCollInterferenceReport: - return "Collocated Interference Report" - case Dot11InformationElementIDChannelUsage: - return "Channel Usage" - case Dot11InformationElementIDTimeZone: - return "Time Zone" - case Dot11InformationElementIDDMSRequest: - return "DMS Request" - case Dot11InformationElementIDDMSResponse: - return "DMS Response" - case Dot11InformationElementIDLinkIdentifier: - return "Link Identifier" - case Dot11InformationElementIDWakeupSchedule: - return "Wakeup Schedule" - case Dot11InformationElementIDChannelSwitchTiming: - return "Channel Switch Timing" - case Dot11InformationElementIDPTIControl: - return "PTI Control" - case Dot11InformationElementIDPUBufferStatus: - return "PU Buffer Status" - case Dot11InformationElementIDInterworking: - return "Interworking" - case Dot11InformationElementIDAdvertisementProtocol: - return "Advertisement Protocol" - case Dot11InformationElementIDExpBWRequest: - return "Expedited Bandwidth Request" - case Dot11InformationElementIDQOSMapSet: - return "QoS Map Set" - case Dot11InformationElementIDRoamingConsortium: - return "Roaming Consortium" - case Dot11InformationElementIDEmergencyAlertIdentifier: - return "Emergency Alert Identifier" - case Dot11InformationElementIDMeshConfiguration: - return "Mesh Configuration" - case Dot11InformationElementIDMeshID: - return "Mesh ID" - case Dot11InformationElementIDMeshLinkMetricReport: - return "Mesh Link Metric Report" - case Dot11InformationElementIDCongestionNotification: - return "Congestion Notification" - case Dot11InformationElementIDMeshPeeringManagement: - return "Mesh Peering Management" - case Dot11InformationElementIDMeshChannelSwitchParam: - return "Mesh Channel Switch Parameters" - case Dot11InformationElementIDMeshAwakeWindows: - return "Mesh Awake Windows" - case Dot11InformationElementIDBeaconTiming: - return "Beacon Timing" - case Dot11InformationElementIDMCCAOPSetupRequest: - return "MCCAOP Setup Request" - case Dot11InformationElementIDMCCAOPSetupReply: - return "MCCAOP SETUP Reply" - case Dot11InformationElementIDMCCAOPAdvertisement: - return "MCCAOP Advertisement" - case Dot11InformationElementIDMCCAOPTeardown: - return "MCCAOP Teardown" - case Dot11InformationElementIDGateAnnouncement: - return "Gate Announcement" - case Dot11InformationElementIDRootAnnouncement: - return "Root Announcement" - case Dot11InformationElementIDExtCapability: - return "Extended Capabilities" - case Dot11InformationElementIDAgereProprietary: - return "Agere Proprietary" - case Dot11InformationElementIDPathRequest: - return "Path Request" - case Dot11InformationElementIDPathReply: - return "Path Reply" - case Dot11InformationElementIDPathError: - return "Path Error" - case Dot11InformationElementIDCiscoCCX1CKIPDeviceName: - return "Cisco CCX1 CKIP + Device Name" - case Dot11InformationElementIDCiscoCCX2: - return "Cisco CCX2" - case Dot11InformationElementIDProxyUpdate: - return "Proxy Update" - case Dot11InformationElementIDProxyUpdateConfirmation: - return "Proxy Update Confirmation" - case Dot11InformationElementIDAuthMeshPerringExch: - return "Auhenticated Mesh Perring Exchange" - case Dot11InformationElementIDMIC: - return "MIC (Message Integrity Code)" - case Dot11InformationElementIDDestinationURI: - return "Destination URI" - case Dot11InformationElementIDUAPSDCoexistence: - return "U-APSD Coexistence" - case Dot11InformationElementIDWakeupSchedule80211ad: - return "Wakeup Schedule 802.11ad" - case Dot11InformationElementIDExtendedSchedule: - return "Extended Schedule" - case Dot11InformationElementIDSTAAvailability: - return "STA Availability" - case Dot11InformationElementIDDMGTSPEC: - return "DMG TSPEC" - case Dot11InformationElementIDNextDMGATI: - return "Next DMG ATI" - case Dot11InformationElementIDDMSCapabilities: - return "DMG Capabilities" - case Dot11InformationElementIDCiscoUnknown95: - return "Cisco Unknown 95" - case Dot11InformationElementIDVendor2: - return "Vendor Specific" - case Dot11InformationElementIDDMGOperating: - return "DMG Operating" - case Dot11InformationElementIDDMGBSSParamChange: - return "DMG BSS Parameter Change" - case Dot11InformationElementIDDMGBeamRefinement: - return "DMG Beam Refinement" - case Dot11InformationElementIDChannelMeasFeedback: - return "Channel Measurement Feedback" - case Dot11InformationElementIDAwakeWindow: - return "Awake Window" - case Dot11InformationElementIDMultiBand: - return "Multi Band" - case Dot11InformationElementIDADDBAExtension: - return "ADDBA Extension" - case Dot11InformationElementIDNEXTPCPList: - return "NEXTPCP List" - case Dot11InformationElementIDPCPHandover: - return "PCP Handover" - case Dot11InformationElementIDDMGLinkMargin: - return "DMG Link Margin" - case Dot11InformationElementIDSwitchingStream: - return "Switching Stream" - case Dot11InformationElementIDSessionTransmission: - return "Session Transmission" - case Dot11InformationElementIDDynamicTonePairReport: - return "Dynamic Tone Pairing Report" - case Dot11InformationElementIDClusterReport: - return "Cluster Report" - case Dot11InformationElementIDRelayCapabilities: - return "Relay Capabilities" - case Dot11InformationElementIDRelayTransferParameter: - return "Relay Transfer Parameter" - case Dot11InformationElementIDBeamlinkMaintenance: - return "Beamlink Maintenance" - case Dot11InformationElementIDMultipleMacSublayers: - return "Multiple MAC Sublayers" - case Dot11InformationElementIDUPID: - return "U-PID" - case Dot11InformationElementIDDMGLinkAdaptionAck: - return "DMG Link Adaption Acknowledgment" - case Dot11InformationElementIDSymbolProprietary: - return "Symbol Proprietary" - case Dot11InformationElementIDMCCAOPAdvertOverview: - return "MCCAOP Advertisement Overview" - case Dot11InformationElementIDQuietPeriodRequest: - return "Quiet Period Request" - case Dot11InformationElementIDQuietPeriodResponse: - return "Quiet Period Response" - case Dot11InformationElementIDECPACPolicy: - return "ECPAC Policy" - case Dot11InformationElementIDClusterTimeOffset: - return "Cluster Time Offset" - case Dot11InformationElementIDAntennaSectorID: - return "Antenna Sector ID" - case Dot11InformationElementIDVHTCapabilities: - return "VHT Capabilities (IEEE Std 802.11ac/D3.1)" - case Dot11InformationElementIDVHTOperation: - return "VHT Operation (IEEE Std 802.11ac/D3.1)" - case Dot11InformationElementIDExtendedBSSLoad: - return "Extended BSS Load" - case Dot11InformationElementIDWideBWChannelSwitch: - return "Wide Bandwidth Channel Switch" - case Dot11InformationElementIDVHTTxPowerEnvelope: - return "VHT Tx Power Envelope (IEEE Std 802.11ac/D5.0)" - case Dot11InformationElementIDChannelSwitchWrapper: - return "Channel Switch Wrapper" - case Dot11InformationElementIDOperatingModeNotification: - return "Operating Mode Notification" - case Dot11InformationElementIDUPSIM: - return "UP SIM" - case Dot11InformationElementIDReducedNeighborReport: - return "Reduced Neighbor Report" - case Dot11InformationElementIDTVHTOperation: - return "TVHT Op" - case Dot11InformationElementIDDeviceLocation: - return "Device Location" - case Dot11InformationElementIDWhiteSpaceMap: - return "White Space Map" - case Dot11InformationElementIDFineTuningMeasureParams: - return "Fine Tuning Measure Parameters" - case Dot11InformationElementIDVendor: - return "Vendor" - default: - return "Unknown information element id" - } -} - -// Dot11 provides an IEEE 802.11 base packet header. -// See http://standards.ieee.org/findstds/standard/802.11-2012.html -// for excruciating detail. -type Dot11 struct { - BaseLayer - Type Dot11Type - Proto uint8 - Flags Dot11Flags - DurationID uint16 - Address1 net.HardwareAddr - Address2 net.HardwareAddr - Address3 net.HardwareAddr - Address4 net.HardwareAddr - SequenceNumber uint16 - FragmentNumber uint16 - Checksum uint32 - QOS *Dot11QOS - HTControl *Dot11HTControl - DataLayer gopacket.Layer -} - -type Dot11QOS struct { - TID uint8 /* Traffic IDentifier */ - EOSP bool /* End of service period */ - AckPolicy Dot11AckPolicy - TXOP uint8 -} - -type Dot11HTControl struct { - ACConstraint bool - RDGMorePPDU bool - - VHT *Dot11HTControlVHT - HT *Dot11HTControlHT -} - -type Dot11HTControlHT struct { - LinkAdapationControl *Dot11LinkAdapationControl - CalibrationPosition uint8 - CalibrationSequence uint8 - CSISteering uint8 - NDPAnnouncement bool - DEI bool -} - -type Dot11HTControlVHT struct { - MRQ bool - UnsolicitedMFB bool - MSI *uint8 - MFB Dot11HTControlMFB - CompressedMSI *uint8 - STBCIndication bool - MFSI *uint8 - GID *uint8 - CodingType *Dot11CodingType - FbTXBeamformed bool -} - -type Dot11HTControlMFB struct { - NumSTS uint8 - VHTMCS uint8 - BW uint8 - SNR int8 -} - -type Dot11LinkAdapationControl struct { - TRQ bool - MRQ bool - MSI uint8 - MFSI uint8 - ASEL *Dot11ASEL - MFB *uint8 -} - -type Dot11ASEL struct { - Command uint8 - Data uint8 -} - -type Dot11CodingType uint8 - -const ( - Dot11CodingTypeBCC = 0 - Dot11CodingTypeLDPC = 1 -) - -func (a Dot11CodingType) String() string { - switch a { - case Dot11CodingTypeBCC: - return "BCC" - case Dot11CodingTypeLDPC: - return "LDPC" - default: - return "Unknown coding type" - } -} - -func (m *Dot11HTControlMFB) NoFeedBackPresent() bool { - return m.VHTMCS == 15 && m.NumSTS == 7 -} - -func decodeDot11(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11{} - err := d.DecodeFromBytes(data, p) - if err != nil { - return err - } - p.AddLayer(d) - if d.DataLayer != nil { - p.AddLayer(d.DataLayer) - } - return p.NextDecoder(d.NextLayerType()) -} - -func (m *Dot11) LayerType() gopacket.LayerType { return LayerTypeDot11 } -func (m *Dot11) CanDecode() gopacket.LayerClass { return LayerTypeDot11 } -func (m *Dot11) NextLayerType() gopacket.LayerType { - if m.DataLayer != nil { - if m.Flags.WEP() { - return LayerTypeDot11WEP - } - return m.DataLayer.(gopacket.DecodingLayer).NextLayerType() - } - return m.Type.LayerType() -} - -func createU8(x uint8) *uint8 { - return &x -} - -var dataDecodeMap = map[Dot11Type]func() gopacket.DecodingLayer{ - Dot11TypeData: func() gopacket.DecodingLayer { return &Dot11Data{} }, - Dot11TypeDataCFAck: func() gopacket.DecodingLayer { return &Dot11DataCFAck{} }, - Dot11TypeDataCFPoll: func() gopacket.DecodingLayer { return &Dot11DataCFPoll{} }, - Dot11TypeDataCFAckPoll: func() gopacket.DecodingLayer { return &Dot11DataCFAckPoll{} }, - Dot11TypeDataNull: func() gopacket.DecodingLayer { return &Dot11DataNull{} }, - Dot11TypeDataCFAckNoData: func() gopacket.DecodingLayer { return &Dot11DataCFAckNoData{} }, - Dot11TypeDataCFPollNoData: func() gopacket.DecodingLayer { return &Dot11DataCFPollNoData{} }, - Dot11TypeDataCFAckPollNoData: func() gopacket.DecodingLayer { return &Dot11DataCFAckPollNoData{} }, - Dot11TypeDataQOSData: func() gopacket.DecodingLayer { return &Dot11DataQOSData{} }, - Dot11TypeDataQOSDataCFAck: func() gopacket.DecodingLayer { return &Dot11DataQOSDataCFAck{} }, - Dot11TypeDataQOSDataCFPoll: func() gopacket.DecodingLayer { return &Dot11DataQOSDataCFPoll{} }, - Dot11TypeDataQOSDataCFAckPoll: func() gopacket.DecodingLayer { return &Dot11DataQOSDataCFAckPoll{} }, - Dot11TypeDataQOSNull: func() gopacket.DecodingLayer { return &Dot11DataQOSNull{} }, - Dot11TypeDataQOSCFPollNoData: func() gopacket.DecodingLayer { return &Dot11DataQOSCFPollNoData{} }, - Dot11TypeDataQOSCFAckPollNoData: func() gopacket.DecodingLayer { return &Dot11DataQOSCFAckPollNoData{} }, -} - -func (m *Dot11) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 10 { - df.SetTruncated() - return fmt.Errorf("Dot11 length %v too short, %v required", len(data), 10) - } - m.Type = Dot11Type((data[0])&0xFC) >> 2 - - m.DataLayer = nil - m.Proto = uint8(data[0]) & 0x0003 - m.Flags = Dot11Flags(data[1]) - m.DurationID = binary.LittleEndian.Uint16(data[2:4]) - m.Address1 = net.HardwareAddr(data[4:10]) - - offset := 10 - - mainType := m.Type.MainType() - - switch mainType { - case Dot11TypeCtrl: - switch m.Type { - case Dot11TypeCtrlRTS, Dot11TypeCtrlPowersavePoll, Dot11TypeCtrlCFEnd, Dot11TypeCtrlCFEndAck: - if len(data) < offset+6 { - df.SetTruncated() - return fmt.Errorf("Dot11 length %v too short, %v required", len(data), offset+6) - } - m.Address2 = net.HardwareAddr(data[offset : offset+6]) - offset += 6 - } - case Dot11TypeMgmt, Dot11TypeData: - if len(data) < offset+14 { - df.SetTruncated() - return fmt.Errorf("Dot11 length %v too short, %v required", len(data), offset+14) - } - m.Address2 = net.HardwareAddr(data[offset : offset+6]) - offset += 6 - m.Address3 = net.HardwareAddr(data[offset : offset+6]) - offset += 6 - - m.SequenceNumber = (binary.LittleEndian.Uint16(data[offset:offset+2]) & 0xFFF0) >> 4 - m.FragmentNumber = (binary.LittleEndian.Uint16(data[offset:offset+2]) & 0x000F) - offset += 2 - } - - if mainType == Dot11TypeData && m.Flags.FromDS() && m.Flags.ToDS() { - if len(data) < offset+6 { - df.SetTruncated() - return fmt.Errorf("Dot11 length %v too short, %v required", len(data), offset+6) - } - m.Address4 = net.HardwareAddr(data[offset : offset+6]) - offset += 6 - } - - if m.Type.QOS() { - if len(data) < offset+2 { - df.SetTruncated() - return fmt.Errorf("Dot11 length %v too short, %v required", len(data), offset+6) - } - m.QOS = &Dot11QOS{ - TID: (uint8(data[offset]) & 0x0F), - EOSP: (uint8(data[offset]) & 0x10) == 0x10, - AckPolicy: Dot11AckPolicy((uint8(data[offset]) & 0x60) >> 5), - TXOP: uint8(data[offset+1]), - } - offset += 2 - } - if m.Flags.Order() && (m.Type.QOS() || mainType == Dot11TypeMgmt) { - if len(data) < offset+4 { - df.SetTruncated() - return fmt.Errorf("Dot11 length %v too short, %v required", len(data), offset+6) - } - - htc := &Dot11HTControl{ - ACConstraint: data[offset+3]&0x40 != 0, - RDGMorePPDU: data[offset+3]&0x80 != 0, - } - m.HTControl = htc - - if data[offset]&0x1 != 0 { // VHT Variant - vht := &Dot11HTControlVHT{} - htc.VHT = vht - vht.MRQ = data[offset]&0x4 != 0 - vht.UnsolicitedMFB = data[offset+3]&0x20 != 0 - vht.MFB = Dot11HTControlMFB{ - NumSTS: uint8(data[offset+1] >> 1 & 0x7), - VHTMCS: uint8(data[offset+1] >> 4 & 0xF), - BW: uint8(data[offset+2] & 0x3), - SNR: int8((-(data[offset+2] >> 2 & 0x20))+data[offset+2]>>2&0x1F) + 22, - } - - if vht.UnsolicitedMFB { - if !vht.MFB.NoFeedBackPresent() { - vht.CompressedMSI = createU8(data[offset] >> 3 & 0x3) - vht.STBCIndication = data[offset]&0x20 != 0 - vht.CodingType = (*Dot11CodingType)(createU8(data[offset+3] >> 3 & 0x1)) - vht.FbTXBeamformed = data[offset+3]&0x10 != 0 - vht.GID = createU8( - data[offset]>>6 + - (data[offset+1] & 0x1 << 2) + - data[offset+3]&0x7<<3) - } - } else { - if vht.MRQ { - vht.MSI = createU8((data[offset] >> 3) & 0x07) - } - vht.MFSI = createU8(data[offset]>>6 + (data[offset+1] & 0x1 << 2)) - } - - } else { // HT Variant - ht := &Dot11HTControlHT{} - htc.HT = ht - - lac := &Dot11LinkAdapationControl{} - ht.LinkAdapationControl = lac - lac.TRQ = data[offset]&0x2 != 0 - lac.MFSI = data[offset]>>6&0x3 + data[offset+1]&0x1<<3 - if data[offset]&0x3C == 0x38 { // ASEL - lac.ASEL = &Dot11ASEL{ - Command: data[offset+1] >> 1 & 0x7, - Data: data[offset+1] >> 4 & 0xF, - } - } else { - lac.MRQ = data[offset]&0x4 != 0 - if lac.MRQ { - lac.MSI = data[offset] >> 3 & 0x7 - } - lac.MFB = createU8(data[offset+1] >> 1) - } - ht.CalibrationPosition = data[offset+2] & 0x3 - ht.CalibrationSequence = data[offset+2] >> 2 & 0x3 - ht.CSISteering = data[offset+2] >> 6 & 0x3 - ht.NDPAnnouncement = data[offset+3]&0x1 != 0 - if mainType != Dot11TypeMgmt { - ht.DEI = data[offset+3]&0x20 != 0 - } - } - - offset += 4 - } - - if len(data) < offset+4 { - df.SetTruncated() - return fmt.Errorf("Dot11 length %v too short, %v required", len(data), offset+4) - } - - m.BaseLayer = BaseLayer{ - Contents: data[0:offset], - Payload: data[offset : len(data)-4], - } - - if mainType == Dot11TypeData { - d := dataDecodeMap[m.Type] - if d == nil { - return fmt.Errorf("unsupported type: %v", m.Type) - } - l := d() - err := l.DecodeFromBytes(m.BaseLayer.Payload, df) - if err != nil { - return err - } - m.DataLayer = l.(gopacket.Layer) - } - - m.Checksum = binary.LittleEndian.Uint32(data[len(data)-4 : len(data)]) - return nil -} - -func (m *Dot11) ChecksumValid() bool { - // only for CTRL and MGMT frames - h := crc32.NewIEEE() - h.Write(m.Contents) - h.Write(m.Payload) - return m.Checksum == h.Sum32() -} - -func (m Dot11) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - buf, err := b.PrependBytes(24) - - if err != nil { - return err - } - - buf[0] = (uint8(m.Type) << 2) | m.Proto - buf[1] = uint8(m.Flags) - - binary.LittleEndian.PutUint16(buf[2:4], m.DurationID) - - copy(buf[4:10], m.Address1) - - offset := 10 - - switch m.Type.MainType() { - case Dot11TypeCtrl: - switch m.Type { - case Dot11TypeCtrlRTS, Dot11TypeCtrlPowersavePoll, Dot11TypeCtrlCFEnd, Dot11TypeCtrlCFEndAck: - copy(buf[offset:offset+6], m.Address2) - offset += 6 - } - case Dot11TypeMgmt, Dot11TypeData: - copy(buf[offset:offset+6], m.Address2) - offset += 6 - copy(buf[offset:offset+6], m.Address3) - offset += 6 - - binary.LittleEndian.PutUint16(buf[offset:offset+2], (m.SequenceNumber<<4)|m.FragmentNumber) - offset += 2 - } - - if m.Type.MainType() == Dot11TypeData && m.Flags.FromDS() && m.Flags.ToDS() { - copy(buf[offset:offset+6], m.Address4) - offset += 6 - } - - return nil -} - -// Dot11Mgmt is a base for all IEEE 802.11 management layers. -type Dot11Mgmt struct { - BaseLayer -} - -func (m *Dot11Mgmt) NextLayerType() gopacket.LayerType { return gopacket.LayerTypePayload } -func (m *Dot11Mgmt) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - m.Contents = data - return nil -} - -// Dot11Ctrl is a base for all IEEE 802.11 control layers. -type Dot11Ctrl struct { - BaseLayer -} - -func (m *Dot11Ctrl) NextLayerType() gopacket.LayerType { return gopacket.LayerTypePayload } - -func (m *Dot11Ctrl) LayerType() gopacket.LayerType { return LayerTypeDot11Ctrl } -func (m *Dot11Ctrl) CanDecode() gopacket.LayerClass { return LayerTypeDot11Ctrl } -func (m *Dot11Ctrl) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - m.Contents = data - return nil -} - -func decodeDot11Ctrl(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11Ctrl{} - return decodingLayerDecoder(d, data, p) -} - -// Dot11WEP contains WEP encrpted IEEE 802.11 data. -type Dot11WEP struct { - BaseLayer -} - -func (m *Dot11WEP) NextLayerType() gopacket.LayerType { return gopacket.LayerTypePayload } - -func (m *Dot11WEP) LayerType() gopacket.LayerType { return LayerTypeDot11WEP } -func (m *Dot11WEP) CanDecode() gopacket.LayerClass { return LayerTypeDot11WEP } -func (m *Dot11WEP) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - m.Contents = data - return nil -} - -func decodeDot11WEP(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11WEP{} - return decodingLayerDecoder(d, data, p) -} - -// Dot11Data is a base for all IEEE 802.11 data layers. -type Dot11Data struct { - BaseLayer -} - -func (m *Dot11Data) NextLayerType() gopacket.LayerType { - return LayerTypeLLC -} - -func (m *Dot11Data) LayerType() gopacket.LayerType { return LayerTypeDot11Data } -func (m *Dot11Data) CanDecode() gopacket.LayerClass { return LayerTypeDot11Data } -func (m *Dot11Data) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - m.Payload = data - return nil -} - -func decodeDot11Data(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11Data{} - return decodingLayerDecoder(d, data, p) -} - -type Dot11DataCFAck struct { - Dot11Data -} - -func decodeDot11DataCFAck(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11DataCFAck{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11DataCFAck) LayerType() gopacket.LayerType { return LayerTypeDot11DataCFAck } -func (m *Dot11DataCFAck) CanDecode() gopacket.LayerClass { return LayerTypeDot11DataCFAck } -func (m *Dot11DataCFAck) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - return m.Dot11Data.DecodeFromBytes(data, df) -} - -type Dot11DataCFPoll struct { - Dot11Data -} - -func decodeDot11DataCFPoll(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11DataCFPoll{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11DataCFPoll) LayerType() gopacket.LayerType { return LayerTypeDot11DataCFPoll } -func (m *Dot11DataCFPoll) CanDecode() gopacket.LayerClass { return LayerTypeDot11DataCFPoll } -func (m *Dot11DataCFPoll) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - return m.Dot11Data.DecodeFromBytes(data, df) -} - -type Dot11DataCFAckPoll struct { - Dot11Data -} - -func decodeDot11DataCFAckPoll(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11DataCFAckPoll{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11DataCFAckPoll) LayerType() gopacket.LayerType { return LayerTypeDot11DataCFAckPoll } -func (m *Dot11DataCFAckPoll) CanDecode() gopacket.LayerClass { return LayerTypeDot11DataCFAckPoll } -func (m *Dot11DataCFAckPoll) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - return m.Dot11Data.DecodeFromBytes(data, df) -} - -type Dot11DataNull struct { - Dot11Data -} - -func decodeDot11DataNull(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11DataNull{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11DataNull) LayerType() gopacket.LayerType { return LayerTypeDot11DataNull } -func (m *Dot11DataNull) CanDecode() gopacket.LayerClass { return LayerTypeDot11DataNull } -func (m *Dot11DataNull) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - return m.Dot11Data.DecodeFromBytes(data, df) -} - -type Dot11DataCFAckNoData struct { - Dot11Data -} - -func decodeDot11DataCFAckNoData(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11DataCFAckNoData{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11DataCFAckNoData) LayerType() gopacket.LayerType { return LayerTypeDot11DataCFAckNoData } -func (m *Dot11DataCFAckNoData) CanDecode() gopacket.LayerClass { return LayerTypeDot11DataCFAckNoData } -func (m *Dot11DataCFAckNoData) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - return m.Dot11Data.DecodeFromBytes(data, df) -} - -type Dot11DataCFPollNoData struct { - Dot11Data -} - -func decodeDot11DataCFPollNoData(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11DataCFPollNoData{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11DataCFPollNoData) LayerType() gopacket.LayerType { return LayerTypeDot11DataCFPollNoData } -func (m *Dot11DataCFPollNoData) CanDecode() gopacket.LayerClass { - return LayerTypeDot11DataCFPollNoData -} -func (m *Dot11DataCFPollNoData) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - return m.Dot11Data.DecodeFromBytes(data, df) -} - -type Dot11DataCFAckPollNoData struct { - Dot11Data -} - -func decodeDot11DataCFAckPollNoData(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11DataCFAckPollNoData{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11DataCFAckPollNoData) LayerType() gopacket.LayerType { - return LayerTypeDot11DataCFAckPollNoData -} -func (m *Dot11DataCFAckPollNoData) CanDecode() gopacket.LayerClass { - return LayerTypeDot11DataCFAckPollNoData -} -func (m *Dot11DataCFAckPollNoData) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - return m.Dot11Data.DecodeFromBytes(data, df) -} - -type Dot11DataQOS struct { - Dot11Ctrl -} - -func (m *Dot11DataQOS) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - m.BaseLayer = BaseLayer{Payload: data} - return nil -} - -type Dot11DataQOSData struct { - Dot11DataQOS -} - -func decodeDot11DataQOSData(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11DataQOSData{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11DataQOSData) LayerType() gopacket.LayerType { return LayerTypeDot11DataQOSData } -func (m *Dot11DataQOSData) CanDecode() gopacket.LayerClass { return LayerTypeDot11DataQOSData } - -func (m *Dot11DataQOSData) NextLayerType() gopacket.LayerType { - return LayerTypeDot11Data -} - -type Dot11DataQOSDataCFAck struct { - Dot11DataQOS -} - -func decodeDot11DataQOSDataCFAck(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11DataQOSDataCFAck{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11DataQOSDataCFAck) LayerType() gopacket.LayerType { return LayerTypeDot11DataQOSDataCFAck } -func (m *Dot11DataQOSDataCFAck) CanDecode() gopacket.LayerClass { - return LayerTypeDot11DataQOSDataCFAck -} -func (m *Dot11DataQOSDataCFAck) NextLayerType() gopacket.LayerType { return LayerTypeDot11DataCFAck } - -type Dot11DataQOSDataCFPoll struct { - Dot11DataQOS -} - -func decodeDot11DataQOSDataCFPoll(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11DataQOSDataCFPoll{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11DataQOSDataCFPoll) LayerType() gopacket.LayerType { - return LayerTypeDot11DataQOSDataCFPoll -} -func (m *Dot11DataQOSDataCFPoll) CanDecode() gopacket.LayerClass { - return LayerTypeDot11DataQOSDataCFPoll -} -func (m *Dot11DataQOSDataCFPoll) NextLayerType() gopacket.LayerType { return LayerTypeDot11DataCFPoll } - -type Dot11DataQOSDataCFAckPoll struct { - Dot11DataQOS -} - -func decodeDot11DataQOSDataCFAckPoll(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11DataQOSDataCFAckPoll{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11DataQOSDataCFAckPoll) LayerType() gopacket.LayerType { - return LayerTypeDot11DataQOSDataCFAckPoll -} -func (m *Dot11DataQOSDataCFAckPoll) CanDecode() gopacket.LayerClass { - return LayerTypeDot11DataQOSDataCFAckPoll -} -func (m *Dot11DataQOSDataCFAckPoll) NextLayerType() gopacket.LayerType { - return LayerTypeDot11DataCFAckPoll -} - -type Dot11DataQOSNull struct { - Dot11DataQOS -} - -func decodeDot11DataQOSNull(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11DataQOSNull{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11DataQOSNull) LayerType() gopacket.LayerType { return LayerTypeDot11DataQOSNull } -func (m *Dot11DataQOSNull) CanDecode() gopacket.LayerClass { return LayerTypeDot11DataQOSNull } -func (m *Dot11DataQOSNull) NextLayerType() gopacket.LayerType { return LayerTypeDot11DataNull } - -type Dot11DataQOSCFPollNoData struct { - Dot11DataQOS -} - -func decodeDot11DataQOSCFPollNoData(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11DataQOSCFPollNoData{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11DataQOSCFPollNoData) LayerType() gopacket.LayerType { - return LayerTypeDot11DataQOSCFPollNoData -} -func (m *Dot11DataQOSCFPollNoData) CanDecode() gopacket.LayerClass { - return LayerTypeDot11DataQOSCFPollNoData -} -func (m *Dot11DataQOSCFPollNoData) NextLayerType() gopacket.LayerType { - return LayerTypeDot11DataCFPollNoData -} - -type Dot11DataQOSCFAckPollNoData struct { - Dot11DataQOS -} - -func decodeDot11DataQOSCFAckPollNoData(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11DataQOSCFAckPollNoData{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11DataQOSCFAckPollNoData) LayerType() gopacket.LayerType { - return LayerTypeDot11DataQOSCFAckPollNoData -} -func (m *Dot11DataQOSCFAckPollNoData) CanDecode() gopacket.LayerClass { - return LayerTypeDot11DataQOSCFAckPollNoData -} -func (m *Dot11DataQOSCFAckPollNoData) NextLayerType() gopacket.LayerType { - return LayerTypeDot11DataCFAckPollNoData -} - -type Dot11InformationElement struct { - BaseLayer - ID Dot11InformationElementID - Length uint8 - OUI []byte - Info []byte -} - -func (m *Dot11InformationElement) LayerType() gopacket.LayerType { - return LayerTypeDot11InformationElement -} -func (m *Dot11InformationElement) CanDecode() gopacket.LayerClass { - return LayerTypeDot11InformationElement -} - -func (m *Dot11InformationElement) NextLayerType() gopacket.LayerType { - return LayerTypeDot11InformationElement -} - -func (m *Dot11InformationElement) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 2 { - df.SetTruncated() - return fmt.Errorf("Dot11InformationElement length %v too short, %v required", len(data), 2) - } - m.ID = Dot11InformationElementID(data[0]) - m.Length = data[1] - offset := int(2) - - if len(data) < offset+int(m.Length) { - df.SetTruncated() - return fmt.Errorf("Dot11InformationElement length %v too short, %v required", len(data), offset+int(m.Length)) - } - if len(data) < offset+4 { - df.SetTruncated() - return fmt.Errorf("vendor extension size < %d", offset+int(m.Length)) - } - if m.ID == 221 { - // Vendor extension - m.OUI = data[offset : offset+4] - m.Info = data[offset+4 : offset+int(m.Length)] - } else { - m.Info = data[offset : offset+int(m.Length)] - } - - offset += int(m.Length) - - m.BaseLayer = BaseLayer{Contents: data[:offset], Payload: data[offset:]} - return nil -} - -func (d *Dot11InformationElement) String() string { - if d.ID == 0 { - return fmt.Sprintf("802.11 Information Element (ID: %v, Length: %v, SSID: %v)", d.ID, d.Length, string(d.Info)) - } else if d.ID == 1 { - rates := "" - for i := 0; i < len(d.Info); i++ { - if d.Info[i]&0x80 == 0 { - rates += fmt.Sprintf("%.1f ", float32(d.Info[i])*0.5) - } else { - rates += fmt.Sprintf("%.1f* ", float32(d.Info[i]&0x7F)*0.5) - } - } - return fmt.Sprintf("802.11 Information Element (ID: %v, Length: %v, Rates: %s Mbit)", d.ID, d.Length, rates) - } else if d.ID == 221 { - return fmt.Sprintf("802.11 Information Element (ID: %v, Length: %v, OUI: %X, Info: %X)", d.ID, d.Length, d.OUI, d.Info) - } else { - return fmt.Sprintf("802.11 Information Element (ID: %v, Length: %v, Info: %X)", d.ID, d.Length, d.Info) - } -} - -func (m Dot11InformationElement) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - length := len(m.Info) + len(m.OUI) - if buf, err := b.PrependBytes(2 + length); err != nil { - return err - } else { - buf[0] = uint8(m.ID) - buf[1] = uint8(length) - copy(buf[2:], m.OUI) - copy(buf[2+len(m.OUI):], m.Info) - } - return nil -} - -func decodeDot11InformationElement(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11InformationElement{} - return decodingLayerDecoder(d, data, p) -} - -type Dot11CtrlCTS struct { - Dot11Ctrl -} - -func decodeDot11CtrlCTS(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11CtrlCTS{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11CtrlCTS) LayerType() gopacket.LayerType { - return LayerTypeDot11CtrlCTS -} -func (m *Dot11CtrlCTS) CanDecode() gopacket.LayerClass { - return LayerTypeDot11CtrlCTS -} -func (m *Dot11CtrlCTS) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - return m.Dot11Ctrl.DecodeFromBytes(data, df) -} - -type Dot11CtrlRTS struct { - Dot11Ctrl -} - -func decodeDot11CtrlRTS(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11CtrlRTS{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11CtrlRTS) LayerType() gopacket.LayerType { - return LayerTypeDot11CtrlRTS -} -func (m *Dot11CtrlRTS) CanDecode() gopacket.LayerClass { - return LayerTypeDot11CtrlRTS -} -func (m *Dot11CtrlRTS) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - return m.Dot11Ctrl.DecodeFromBytes(data, df) -} - -type Dot11CtrlBlockAckReq struct { - Dot11Ctrl -} - -func decodeDot11CtrlBlockAckReq(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11CtrlBlockAckReq{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11CtrlBlockAckReq) LayerType() gopacket.LayerType { - return LayerTypeDot11CtrlBlockAckReq -} -func (m *Dot11CtrlBlockAckReq) CanDecode() gopacket.LayerClass { - return LayerTypeDot11CtrlBlockAckReq -} -func (m *Dot11CtrlBlockAckReq) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - return m.Dot11Ctrl.DecodeFromBytes(data, df) -} - -type Dot11CtrlBlockAck struct { - Dot11Ctrl -} - -func decodeDot11CtrlBlockAck(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11CtrlBlockAck{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11CtrlBlockAck) LayerType() gopacket.LayerType { return LayerTypeDot11CtrlBlockAck } -func (m *Dot11CtrlBlockAck) CanDecode() gopacket.LayerClass { return LayerTypeDot11CtrlBlockAck } -func (m *Dot11CtrlBlockAck) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - return m.Dot11Ctrl.DecodeFromBytes(data, df) -} - -type Dot11CtrlPowersavePoll struct { - Dot11Ctrl -} - -func decodeDot11CtrlPowersavePoll(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11CtrlPowersavePoll{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11CtrlPowersavePoll) LayerType() gopacket.LayerType { - return LayerTypeDot11CtrlPowersavePoll -} -func (m *Dot11CtrlPowersavePoll) CanDecode() gopacket.LayerClass { - return LayerTypeDot11CtrlPowersavePoll -} -func (m *Dot11CtrlPowersavePoll) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - return m.Dot11Ctrl.DecodeFromBytes(data, df) -} - -type Dot11CtrlAck struct { - Dot11Ctrl -} - -func decodeDot11CtrlAck(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11CtrlAck{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11CtrlAck) LayerType() gopacket.LayerType { return LayerTypeDot11CtrlAck } -func (m *Dot11CtrlAck) CanDecode() gopacket.LayerClass { return LayerTypeDot11CtrlAck } -func (m *Dot11CtrlAck) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - return m.Dot11Ctrl.DecodeFromBytes(data, df) -} - -type Dot11CtrlCFEnd struct { - Dot11Ctrl -} - -func decodeDot11CtrlCFEnd(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11CtrlCFEnd{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11CtrlCFEnd) LayerType() gopacket.LayerType { - return LayerTypeDot11CtrlCFEnd -} -func (m *Dot11CtrlCFEnd) CanDecode() gopacket.LayerClass { - return LayerTypeDot11CtrlCFEnd -} -func (m *Dot11CtrlCFEnd) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - return m.Dot11Ctrl.DecodeFromBytes(data, df) -} - -type Dot11CtrlCFEndAck struct { - Dot11Ctrl -} - -func decodeDot11CtrlCFEndAck(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11CtrlCFEndAck{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11CtrlCFEndAck) LayerType() gopacket.LayerType { - return LayerTypeDot11CtrlCFEndAck -} -func (m *Dot11CtrlCFEndAck) CanDecode() gopacket.LayerClass { - return LayerTypeDot11CtrlCFEndAck -} -func (m *Dot11CtrlCFEndAck) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - return m.Dot11Ctrl.DecodeFromBytes(data, df) -} - -type Dot11MgmtAssociationReq struct { - Dot11Mgmt - CapabilityInfo uint16 - ListenInterval uint16 -} - -func decodeDot11MgmtAssociationReq(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11MgmtAssociationReq{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11MgmtAssociationReq) LayerType() gopacket.LayerType { - return LayerTypeDot11MgmtAssociationReq -} -func (m *Dot11MgmtAssociationReq) CanDecode() gopacket.LayerClass { - return LayerTypeDot11MgmtAssociationReq -} -func (m *Dot11MgmtAssociationReq) NextLayerType() gopacket.LayerType { - return LayerTypeDot11InformationElement -} -func (m *Dot11MgmtAssociationReq) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 4 { - df.SetTruncated() - return fmt.Errorf("Dot11MgmtAssociationReq length %v too short, %v required", len(data), 4) - } - m.CapabilityInfo = binary.LittleEndian.Uint16(data[0:2]) - m.ListenInterval = binary.LittleEndian.Uint16(data[2:4]) - m.Payload = data[4:] - return m.Dot11Mgmt.DecodeFromBytes(data, df) -} - -func (m Dot11MgmtAssociationReq) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - buf, err := b.PrependBytes(4) - - if err != nil { - return err - } - - binary.LittleEndian.PutUint16(buf[0:2], m.CapabilityInfo) - binary.LittleEndian.PutUint16(buf[2:4], m.ListenInterval) - - return nil -} - -type Dot11MgmtAssociationResp struct { - Dot11Mgmt - CapabilityInfo uint16 - Status Dot11Status - AID uint16 -} - -func decodeDot11MgmtAssociationResp(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11MgmtAssociationResp{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11MgmtAssociationResp) CanDecode() gopacket.LayerClass { - return LayerTypeDot11MgmtAssociationResp -} -func (m *Dot11MgmtAssociationResp) LayerType() gopacket.LayerType { - return LayerTypeDot11MgmtAssociationResp -} -func (m *Dot11MgmtAssociationResp) NextLayerType() gopacket.LayerType { - return LayerTypeDot11InformationElement -} -func (m *Dot11MgmtAssociationResp) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 6 { - df.SetTruncated() - return fmt.Errorf("Dot11MgmtAssociationResp length %v too short, %v required", len(data), 6) - } - m.CapabilityInfo = binary.LittleEndian.Uint16(data[0:2]) - m.Status = Dot11Status(binary.LittleEndian.Uint16(data[2:4])) - m.AID = binary.LittleEndian.Uint16(data[4:6]) - m.Payload = data[6:] - return m.Dot11Mgmt.DecodeFromBytes(data, df) -} - -func (m Dot11MgmtAssociationResp) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - buf, err := b.PrependBytes(6) - - if err != nil { - return err - } - - binary.LittleEndian.PutUint16(buf[0:2], m.CapabilityInfo) - binary.LittleEndian.PutUint16(buf[2:4], uint16(m.Status)) - binary.LittleEndian.PutUint16(buf[4:6], m.AID) - - return nil -} - -type Dot11MgmtReassociationReq struct { - Dot11Mgmt - CapabilityInfo uint16 - ListenInterval uint16 - CurrentApAddress net.HardwareAddr -} - -func decodeDot11MgmtReassociationReq(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11MgmtReassociationReq{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11MgmtReassociationReq) LayerType() gopacket.LayerType { - return LayerTypeDot11MgmtReassociationReq -} -func (m *Dot11MgmtReassociationReq) CanDecode() gopacket.LayerClass { - return LayerTypeDot11MgmtReassociationReq -} -func (m *Dot11MgmtReassociationReq) NextLayerType() gopacket.LayerType { - return LayerTypeDot11InformationElement -} -func (m *Dot11MgmtReassociationReq) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 10 { - df.SetTruncated() - return fmt.Errorf("Dot11MgmtReassociationReq length %v too short, %v required", len(data), 10) - } - m.CapabilityInfo = binary.LittleEndian.Uint16(data[0:2]) - m.ListenInterval = binary.LittleEndian.Uint16(data[2:4]) - m.CurrentApAddress = net.HardwareAddr(data[4:10]) - m.Payload = data[10:] - return m.Dot11Mgmt.DecodeFromBytes(data, df) -} - -func (m Dot11MgmtReassociationReq) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - buf, err := b.PrependBytes(10) - - if err != nil { - return err - } - - binary.LittleEndian.PutUint16(buf[0:2], m.CapabilityInfo) - binary.LittleEndian.PutUint16(buf[2:4], m.ListenInterval) - - copy(buf[4:10], m.CurrentApAddress) - - return nil -} - -type Dot11MgmtReassociationResp struct { - Dot11Mgmt -} - -func decodeDot11MgmtReassociationResp(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11MgmtReassociationResp{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11MgmtReassociationResp) LayerType() gopacket.LayerType { - return LayerTypeDot11MgmtReassociationResp -} -func (m *Dot11MgmtReassociationResp) CanDecode() gopacket.LayerClass { - return LayerTypeDot11MgmtReassociationResp -} -func (m *Dot11MgmtReassociationResp) NextLayerType() gopacket.LayerType { - return LayerTypeDot11InformationElement -} - -type Dot11MgmtProbeReq struct { - Dot11Mgmt -} - -func decodeDot11MgmtProbeReq(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11MgmtProbeReq{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11MgmtProbeReq) LayerType() gopacket.LayerType { return LayerTypeDot11MgmtProbeReq } -func (m *Dot11MgmtProbeReq) CanDecode() gopacket.LayerClass { return LayerTypeDot11MgmtProbeReq } -func (m *Dot11MgmtProbeReq) NextLayerType() gopacket.LayerType { - return LayerTypeDot11InformationElement -} - -type Dot11MgmtProbeResp struct { - Dot11Mgmt - Timestamp uint64 - Interval uint16 - Flags uint16 -} - -func decodeDot11MgmtProbeResp(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11MgmtProbeResp{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11MgmtProbeResp) LayerType() gopacket.LayerType { return LayerTypeDot11MgmtProbeResp } -func (m *Dot11MgmtProbeResp) CanDecode() gopacket.LayerClass { return LayerTypeDot11MgmtProbeResp } -func (m *Dot11MgmtProbeResp) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 12 { - df.SetTruncated() - - return fmt.Errorf("Dot11MgmtProbeResp length %v too short, %v required", len(data), 12) - } - - m.Timestamp = binary.LittleEndian.Uint64(data[0:8]) - m.Interval = binary.LittleEndian.Uint16(data[8:10]) - m.Flags = binary.LittleEndian.Uint16(data[10:12]) - m.Payload = data[12:] - - return m.Dot11Mgmt.DecodeFromBytes(data, df) -} - -func (m *Dot11MgmtProbeResp) NextLayerType() gopacket.LayerType { - return LayerTypeDot11InformationElement -} - -func (m Dot11MgmtProbeResp) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - buf, err := b.PrependBytes(12) - - if err != nil { - return err - } - - binary.LittleEndian.PutUint64(buf[0:8], m.Timestamp) - binary.LittleEndian.PutUint16(buf[8:10], m.Interval) - binary.LittleEndian.PutUint16(buf[10:12], m.Flags) - - return nil -} - -type Dot11MgmtMeasurementPilot struct { - Dot11Mgmt -} - -func decodeDot11MgmtMeasurementPilot(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11MgmtMeasurementPilot{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11MgmtMeasurementPilot) LayerType() gopacket.LayerType { - return LayerTypeDot11MgmtMeasurementPilot -} -func (m *Dot11MgmtMeasurementPilot) CanDecode() gopacket.LayerClass { - return LayerTypeDot11MgmtMeasurementPilot -} - -type Dot11MgmtBeacon struct { - Dot11Mgmt - Timestamp uint64 - Interval uint16 - Flags uint16 -} - -func decodeDot11MgmtBeacon(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11MgmtBeacon{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11MgmtBeacon) LayerType() gopacket.LayerType { return LayerTypeDot11MgmtBeacon } -func (m *Dot11MgmtBeacon) CanDecode() gopacket.LayerClass { return LayerTypeDot11MgmtBeacon } -func (m *Dot11MgmtBeacon) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 12 { - df.SetTruncated() - return fmt.Errorf("Dot11MgmtBeacon length %v too short, %v required", len(data), 12) - } - m.Timestamp = binary.LittleEndian.Uint64(data[0:8]) - m.Interval = binary.LittleEndian.Uint16(data[8:10]) - m.Flags = binary.LittleEndian.Uint16(data[10:12]) - m.Payload = data[12:] - return m.Dot11Mgmt.DecodeFromBytes(data, df) -} - -func (m *Dot11MgmtBeacon) NextLayerType() gopacket.LayerType { return LayerTypeDot11InformationElement } - -func (m Dot11MgmtBeacon) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - buf, err := b.PrependBytes(12) - - if err != nil { - return err - } - - binary.LittleEndian.PutUint64(buf[0:8], m.Timestamp) - binary.LittleEndian.PutUint16(buf[8:10], m.Interval) - binary.LittleEndian.PutUint16(buf[10:12], m.Flags) - - return nil -} - -type Dot11MgmtATIM struct { - Dot11Mgmt -} - -func decodeDot11MgmtATIM(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11MgmtATIM{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11MgmtATIM) LayerType() gopacket.LayerType { return LayerTypeDot11MgmtATIM } -func (m *Dot11MgmtATIM) CanDecode() gopacket.LayerClass { return LayerTypeDot11MgmtATIM } - -type Dot11MgmtDisassociation struct { - Dot11Mgmt - Reason Dot11Reason -} - -func decodeDot11MgmtDisassociation(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11MgmtDisassociation{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11MgmtDisassociation) LayerType() gopacket.LayerType { - return LayerTypeDot11MgmtDisassociation -} -func (m *Dot11MgmtDisassociation) CanDecode() gopacket.LayerClass { - return LayerTypeDot11MgmtDisassociation -} -func (m *Dot11MgmtDisassociation) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 2 { - df.SetTruncated() - return fmt.Errorf("Dot11MgmtDisassociation length %v too short, %v required", len(data), 2) - } - m.Reason = Dot11Reason(binary.LittleEndian.Uint16(data[0:2])) - return m.Dot11Mgmt.DecodeFromBytes(data, df) -} - -func (m Dot11MgmtDisassociation) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - buf, err := b.PrependBytes(2) - - if err != nil { - return err - } - - binary.LittleEndian.PutUint16(buf[0:2], uint16(m.Reason)) - - return nil -} - -type Dot11MgmtAuthentication struct { - Dot11Mgmt - Algorithm Dot11Algorithm - Sequence uint16 - Status Dot11Status -} - -func decodeDot11MgmtAuthentication(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11MgmtAuthentication{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11MgmtAuthentication) LayerType() gopacket.LayerType { - return LayerTypeDot11MgmtAuthentication -} -func (m *Dot11MgmtAuthentication) CanDecode() gopacket.LayerClass { - return LayerTypeDot11MgmtAuthentication -} -func (m *Dot11MgmtAuthentication) NextLayerType() gopacket.LayerType { - return LayerTypeDot11InformationElement -} -func (m *Dot11MgmtAuthentication) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 6 { - df.SetTruncated() - return fmt.Errorf("Dot11MgmtAuthentication length %v too short, %v required", len(data), 6) - } - m.Algorithm = Dot11Algorithm(binary.LittleEndian.Uint16(data[0:2])) - m.Sequence = binary.LittleEndian.Uint16(data[2:4]) - m.Status = Dot11Status(binary.LittleEndian.Uint16(data[4:6])) - m.Payload = data[6:] - return m.Dot11Mgmt.DecodeFromBytes(data, df) -} - -func (m Dot11MgmtAuthentication) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - buf, err := b.PrependBytes(6) - - if err != nil { - return err - } - - binary.LittleEndian.PutUint16(buf[0:2], uint16(m.Algorithm)) - binary.LittleEndian.PutUint16(buf[2:4], m.Sequence) - binary.LittleEndian.PutUint16(buf[4:6], uint16(m.Status)) - - return nil -} - -type Dot11MgmtDeauthentication struct { - Dot11Mgmt - Reason Dot11Reason -} - -func decodeDot11MgmtDeauthentication(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11MgmtDeauthentication{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11MgmtDeauthentication) LayerType() gopacket.LayerType { - return LayerTypeDot11MgmtDeauthentication -} -func (m *Dot11MgmtDeauthentication) CanDecode() gopacket.LayerClass { - return LayerTypeDot11MgmtDeauthentication -} -func (m *Dot11MgmtDeauthentication) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 2 { - df.SetTruncated() - return fmt.Errorf("Dot11MgmtDeauthentication length %v too short, %v required", len(data), 2) - } - m.Reason = Dot11Reason(binary.LittleEndian.Uint16(data[0:2])) - return m.Dot11Mgmt.DecodeFromBytes(data, df) -} - -func (m Dot11MgmtDeauthentication) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - buf, err := b.PrependBytes(2) - - if err != nil { - return err - } - - binary.LittleEndian.PutUint16(buf[0:2], uint16(m.Reason)) - - return nil -} - -type Dot11MgmtAction struct { - Dot11Mgmt -} - -func decodeDot11MgmtAction(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11MgmtAction{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11MgmtAction) LayerType() gopacket.LayerType { return LayerTypeDot11MgmtAction } -func (m *Dot11MgmtAction) CanDecode() gopacket.LayerClass { return LayerTypeDot11MgmtAction } - -type Dot11MgmtActionNoAck struct { - Dot11Mgmt -} - -func decodeDot11MgmtActionNoAck(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11MgmtActionNoAck{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11MgmtActionNoAck) LayerType() gopacket.LayerType { return LayerTypeDot11MgmtActionNoAck } -func (m *Dot11MgmtActionNoAck) CanDecode() gopacket.LayerClass { return LayerTypeDot11MgmtActionNoAck } - -type Dot11MgmtArubaWLAN struct { - Dot11Mgmt -} - -func decodeDot11MgmtArubaWLAN(data []byte, p gopacket.PacketBuilder) error { - d := &Dot11MgmtArubaWLAN{} - return decodingLayerDecoder(d, data, p) -} - -func (m *Dot11MgmtArubaWLAN) LayerType() gopacket.LayerType { return LayerTypeDot11MgmtArubaWLAN } -func (m *Dot11MgmtArubaWLAN) CanDecode() gopacket.LayerClass { return LayerTypeDot11MgmtArubaWLAN } diff --git a/vendor/github.com/google/gopacket/layers/dot1q.go b/vendor/github.com/google/gopacket/layers/dot1q.go deleted file mode 100644 index 5cdd2f8d68..0000000000 --- a/vendor/github.com/google/gopacket/layers/dot1q.go +++ /dev/null @@ -1,75 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// Copyright 2009-2011 Andreas Krennmair. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "fmt" - "github.com/google/gopacket" -) - -// Dot1Q is the packet layer for 802.1Q VLAN headers. -type Dot1Q struct { - BaseLayer - Priority uint8 - DropEligible bool - VLANIdentifier uint16 - Type EthernetType -} - -// LayerType returns gopacket.LayerTypeDot1Q -func (d *Dot1Q) LayerType() gopacket.LayerType { return LayerTypeDot1Q } - -// DecodeFromBytes decodes the given bytes into this layer. -func (d *Dot1Q) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 4 { - df.SetTruncated() - return fmt.Errorf("802.1Q tag length %d too short", len(data)) - } - d.Priority = (data[0] & 0xE0) >> 5 - d.DropEligible = data[0]&0x10 != 0 - d.VLANIdentifier = binary.BigEndian.Uint16(data[:2]) & 0x0FFF - d.Type = EthernetType(binary.BigEndian.Uint16(data[2:4])) - d.BaseLayer = BaseLayer{Contents: data[:4], Payload: data[4:]} - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (d *Dot1Q) CanDecode() gopacket.LayerClass { - return LayerTypeDot1Q -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (d *Dot1Q) NextLayerType() gopacket.LayerType { - return d.Type.LayerType() -} - -func decodeDot1Q(data []byte, p gopacket.PacketBuilder) error { - d := &Dot1Q{} - return decodingLayerDecoder(d, data, p) -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (d *Dot1Q) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - bytes, err := b.PrependBytes(4) - if err != nil { - return err - } - if d.VLANIdentifier > 0xFFF { - return fmt.Errorf("vlan identifier %v is too high", d.VLANIdentifier) - } - firstBytes := uint16(d.Priority)<<13 | d.VLANIdentifier - if d.DropEligible { - firstBytes |= 0x1000 - } - binary.BigEndian.PutUint16(bytes, firstBytes) - binary.BigEndian.PutUint16(bytes[2:], uint16(d.Type)) - return nil -} diff --git a/vendor/github.com/google/gopacket/layers/eap.go b/vendor/github.com/google/gopacket/layers/eap.go deleted file mode 100644 index 54238e8c73..0000000000 --- a/vendor/github.com/google/gopacket/layers/eap.go +++ /dev/null @@ -1,114 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "fmt" - "github.com/google/gopacket" -) - -type EAPCode uint8 -type EAPType uint8 - -const ( - EAPCodeRequest EAPCode = 1 - EAPCodeResponse EAPCode = 2 - EAPCodeSuccess EAPCode = 3 - EAPCodeFailure EAPCode = 4 - - // EAPTypeNone means that this EAP layer has no Type or TypeData. - // Success and Failure EAPs will have this set. - EAPTypeNone EAPType = 0 - - EAPTypeIdentity EAPType = 1 - EAPTypeNotification EAPType = 2 - EAPTypeNACK EAPType = 3 - EAPTypeOTP EAPType = 4 - EAPTypeTokenCard EAPType = 5 -) - -// EAP defines an Extensible Authentication Protocol (rfc 3748) layer. -type EAP struct { - BaseLayer - Code EAPCode - Id uint8 - Length uint16 - Type EAPType - TypeData []byte -} - -// LayerType returns LayerTypeEAP. -func (e *EAP) LayerType() gopacket.LayerType { return LayerTypeEAP } - -// DecodeFromBytes decodes the given bytes into this layer. -func (e *EAP) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 4 { - df.SetTruncated() - return fmt.Errorf("EAP length %d too short", len(data)) - } - e.Code = EAPCode(data[0]) - e.Id = data[1] - e.Length = binary.BigEndian.Uint16(data[2:4]) - if len(data) < int(e.Length) { - df.SetTruncated() - return fmt.Errorf("EAP length %d too short, %d expected", len(data), e.Length) - } - switch { - case e.Length > 4: - e.Type = EAPType(data[4]) - e.TypeData = data[5:] - case e.Length == 4: - e.Type = 0 - e.TypeData = nil - default: - return fmt.Errorf("invalid EAP length %d", e.Length) - } - e.BaseLayer.Contents = data[:e.Length] - e.BaseLayer.Payload = data[e.Length:] // Should be 0 bytes - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (e *EAP) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - if opts.FixLengths { - e.Length = uint16(len(e.TypeData) + 1) - } - size := len(e.TypeData) + 4 - if size > 4 { - size++ - } - bytes, err := b.PrependBytes(size) - if err != nil { - return err - } - bytes[0] = byte(e.Code) - bytes[1] = e.Id - binary.BigEndian.PutUint16(bytes[2:], e.Length) - if size > 4 { - bytes[4] = byte(e.Type) - copy(bytes[5:], e.TypeData) - } - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (e *EAP) CanDecode() gopacket.LayerClass { - return LayerTypeEAP -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (e *EAP) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypeZero -} - -func decodeEAP(data []byte, p gopacket.PacketBuilder) error { - e := &EAP{} - return decodingLayerDecoder(e, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/eapol.go b/vendor/github.com/google/gopacket/layers/eapol.go deleted file mode 100644 index 902598a206..0000000000 --- a/vendor/github.com/google/gopacket/layers/eapol.go +++ /dev/null @@ -1,302 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "fmt" - "github.com/google/gopacket" -) - -// EAPOL defines an EAP over LAN (802.1x) layer. -type EAPOL struct { - BaseLayer - Version uint8 - Type EAPOLType - Length uint16 -} - -// LayerType returns LayerTypeEAPOL. -func (e *EAPOL) LayerType() gopacket.LayerType { return LayerTypeEAPOL } - -// DecodeFromBytes decodes the given bytes into this layer. -func (e *EAPOL) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 4 { - df.SetTruncated() - return fmt.Errorf("EAPOL length %d too short", len(data)) - } - e.Version = data[0] - e.Type = EAPOLType(data[1]) - e.Length = binary.BigEndian.Uint16(data[2:4]) - e.BaseLayer = BaseLayer{data[:4], data[4:]} - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer -func (e *EAPOL) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - bytes, _ := b.PrependBytes(4) - bytes[0] = e.Version - bytes[1] = byte(e.Type) - binary.BigEndian.PutUint16(bytes[2:], e.Length) - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (e *EAPOL) CanDecode() gopacket.LayerClass { - return LayerTypeEAPOL -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (e *EAPOL) NextLayerType() gopacket.LayerType { - return e.Type.LayerType() -} - -func decodeEAPOL(data []byte, p gopacket.PacketBuilder) error { - e := &EAPOL{} - return decodingLayerDecoder(e, data, p) -} - -// EAPOLKeyDescriptorType is an enumeration of key descriptor types -// as specified by 802.1x in the EAPOL-Key frame -type EAPOLKeyDescriptorType uint8 - -// Enumeration of EAPOLKeyDescriptorType -const ( - EAPOLKeyDescriptorTypeRC4 EAPOLKeyDescriptorType = 1 - EAPOLKeyDescriptorTypeDot11 EAPOLKeyDescriptorType = 2 - EAPOLKeyDescriptorTypeWPA EAPOLKeyDescriptorType = 254 -) - -func (kdt EAPOLKeyDescriptorType) String() string { - switch kdt { - case EAPOLKeyDescriptorTypeRC4: - return "RC4" - case EAPOLKeyDescriptorTypeDot11: - return "802.11" - case EAPOLKeyDescriptorTypeWPA: - return "WPA" - default: - return fmt.Sprintf("unknown descriptor type %d", kdt) - } -} - -// EAPOLKeyDescriptorVersion is an enumeration of versions specifying the -// encryption algorithm for the key data and the authentication for the -// message integrity code (MIC) -type EAPOLKeyDescriptorVersion uint8 - -// Enumeration of EAPOLKeyDescriptorVersion -const ( - EAPOLKeyDescriptorVersionOther EAPOLKeyDescriptorVersion = 0 - EAPOLKeyDescriptorVersionRC4HMACMD5 EAPOLKeyDescriptorVersion = 1 - EAPOLKeyDescriptorVersionAESHMACSHA1 EAPOLKeyDescriptorVersion = 2 - EAPOLKeyDescriptorVersionAES128CMAC EAPOLKeyDescriptorVersion = 3 -) - -func (v EAPOLKeyDescriptorVersion) String() string { - switch v { - case EAPOLKeyDescriptorVersionOther: - return "Other" - case EAPOLKeyDescriptorVersionRC4HMACMD5: - return "RC4-HMAC-MD5" - case EAPOLKeyDescriptorVersionAESHMACSHA1: - return "AES-HMAC-SHA1-128" - case EAPOLKeyDescriptorVersionAES128CMAC: - return "AES-128-CMAC" - default: - return fmt.Sprintf("unknown version %d", v) - } -} - -// EAPOLKeyType is an enumeration of key derivation types describing -// the purpose of the keys being derived. -type EAPOLKeyType uint8 - -// Enumeration of EAPOLKeyType -const ( - EAPOLKeyTypeGroupSMK EAPOLKeyType = 0 - EAPOLKeyTypePairwise EAPOLKeyType = 1 -) - -func (kt EAPOLKeyType) String() string { - switch kt { - case EAPOLKeyTypeGroupSMK: - return "Group/SMK" - case EAPOLKeyTypePairwise: - return "Pairwise" - default: - return fmt.Sprintf("unknown key type %d", kt) - } -} - -// EAPOLKey defines an EAPOL-Key frame for 802.1x authentication -type EAPOLKey struct { - BaseLayer - KeyDescriptorType EAPOLKeyDescriptorType - KeyDescriptorVersion EAPOLKeyDescriptorVersion - KeyType EAPOLKeyType - KeyIndex uint8 - Install bool - KeyACK bool - KeyMIC bool - Secure bool - MICError bool - Request bool - HasEncryptedKeyData bool - SMKMessage bool - KeyLength uint16 - ReplayCounter uint64 - Nonce []byte - IV []byte - RSC uint64 - ID uint64 - MIC []byte - KeyDataLength uint16 - EncryptedKeyData []byte -} - -// LayerType returns LayerTypeEAPOLKey. -func (ek *EAPOLKey) LayerType() gopacket.LayerType { - return LayerTypeEAPOLKey -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (ek *EAPOLKey) CanDecode() gopacket.LayerType { - return LayerTypeEAPOLKey -} - -// NextLayerType returns layers.LayerTypeDot11InformationElement if the key -// data exists and is unencrypted, otherwise it does not expect a next layer. -func (ek *EAPOLKey) NextLayerType() gopacket.LayerType { - if !ek.HasEncryptedKeyData && ek.KeyDataLength > 0 { - return LayerTypeDot11InformationElement - } - return gopacket.LayerTypePayload -} - -const eapolKeyFrameLen = 95 - -// DecodeFromBytes decodes the given bytes into this layer. -func (ek *EAPOLKey) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < eapolKeyFrameLen { - df.SetTruncated() - return fmt.Errorf("EAPOLKey length %v too short, %v required", - len(data), eapolKeyFrameLen) - } - - ek.KeyDescriptorType = EAPOLKeyDescriptorType(data[0]) - - info := binary.BigEndian.Uint16(data[1:3]) - ek.KeyDescriptorVersion = EAPOLKeyDescriptorVersion(info & 0x0007) - ek.KeyType = EAPOLKeyType((info & 0x0008) >> 3) - ek.KeyIndex = uint8((info & 0x0030) >> 4) - ek.Install = (info & 0x0040) != 0 - ek.KeyACK = (info & 0x0080) != 0 - ek.KeyMIC = (info & 0x0100) != 0 - ek.Secure = (info & 0x0200) != 0 - ek.MICError = (info & 0x0400) != 0 - ek.Request = (info & 0x0800) != 0 - ek.HasEncryptedKeyData = (info & 0x1000) != 0 - ek.SMKMessage = (info & 0x2000) != 0 - - ek.KeyLength = binary.BigEndian.Uint16(data[3:5]) - ek.ReplayCounter = binary.BigEndian.Uint64(data[5:13]) - - ek.Nonce = data[13:45] - ek.IV = data[45:61] - ek.RSC = binary.BigEndian.Uint64(data[61:69]) - ek.ID = binary.BigEndian.Uint64(data[69:77]) - ek.MIC = data[77:93] - - ek.KeyDataLength = binary.BigEndian.Uint16(data[93:95]) - - totalLength := eapolKeyFrameLen + int(ek.KeyDataLength) - if len(data) < totalLength { - df.SetTruncated() - return fmt.Errorf("EAPOLKey data length %d too short, %d required", - len(data)-eapolKeyFrameLen, ek.KeyDataLength) - } - - if ek.HasEncryptedKeyData { - ek.EncryptedKeyData = data[eapolKeyFrameLen:totalLength] - ek.BaseLayer = BaseLayer{ - Contents: data[:totalLength], - Payload: data[totalLength:], - } - } else { - ek.BaseLayer = BaseLayer{ - Contents: data[:eapolKeyFrameLen], - Payload: data[eapolKeyFrameLen:], - } - } - - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (ek *EAPOLKey) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - buf, err := b.PrependBytes(eapolKeyFrameLen + len(ek.EncryptedKeyData)) - if err != nil { - return err - } - - buf[0] = byte(ek.KeyDescriptorType) - - var info uint16 - info |= uint16(ek.KeyDescriptorVersion) - info |= uint16(ek.KeyType) << 3 - info |= uint16(ek.KeyIndex) << 4 - if ek.Install { - info |= 0x0040 - } - if ek.KeyACK { - info |= 0x0080 - } - if ek.KeyMIC { - info |= 0x0100 - } - if ek.Secure { - info |= 0x0200 - } - if ek.MICError { - info |= 0x0400 - } - if ek.Request { - info |= 0x0800 - } - if ek.HasEncryptedKeyData { - info |= 0x1000 - } - if ek.SMKMessage { - info |= 0x2000 - } - binary.BigEndian.PutUint16(buf[1:3], info) - - binary.BigEndian.PutUint16(buf[3:5], ek.KeyLength) - binary.BigEndian.PutUint64(buf[5:13], ek.ReplayCounter) - - copy(buf[13:45], ek.Nonce) - copy(buf[45:61], ek.IV) - binary.BigEndian.PutUint64(buf[61:69], ek.RSC) - binary.BigEndian.PutUint64(buf[69:77], ek.ID) - copy(buf[77:93], ek.MIC) - - binary.BigEndian.PutUint16(buf[93:95], ek.KeyDataLength) - if len(ek.EncryptedKeyData) > 0 { - copy(buf[95:95+len(ek.EncryptedKeyData)], ek.EncryptedKeyData) - } - - return nil -} - -func decodeEAPOLKey(data []byte, p gopacket.PacketBuilder) error { - ek := &EAPOLKey{} - return decodingLayerDecoder(ek, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/endpoints.go b/vendor/github.com/google/gopacket/layers/endpoints.go deleted file mode 100644 index 4c91cc3324..0000000000 --- a/vendor/github.com/google/gopacket/layers/endpoints.go +++ /dev/null @@ -1,97 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "github.com/google/gopacket" - "net" - "strconv" -) - -var ( - // We use two different endpoint types for IPv4 vs IPv6 addresses, so that - // ordering with endpointA.LessThan(endpointB) sanely groups all IPv4 - // addresses and all IPv6 addresses, such that IPv6 > IPv4 for all addresses. - EndpointIPv4 = gopacket.RegisterEndpointType(1, gopacket.EndpointTypeMetadata{Name: "IPv4", Formatter: func(b []byte) string { - return net.IP(b).String() - }}) - EndpointIPv6 = gopacket.RegisterEndpointType(2, gopacket.EndpointTypeMetadata{Name: "IPv6", Formatter: func(b []byte) string { - return net.IP(b).String() - }}) - - EndpointMAC = gopacket.RegisterEndpointType(3, gopacket.EndpointTypeMetadata{Name: "MAC", Formatter: func(b []byte) string { - return net.HardwareAddr(b).String() - }}) - EndpointTCPPort = gopacket.RegisterEndpointType(4, gopacket.EndpointTypeMetadata{Name: "TCP", Formatter: func(b []byte) string { - return strconv.Itoa(int(binary.BigEndian.Uint16(b))) - }}) - EndpointUDPPort = gopacket.RegisterEndpointType(5, gopacket.EndpointTypeMetadata{Name: "UDP", Formatter: func(b []byte) string { - return strconv.Itoa(int(binary.BigEndian.Uint16(b))) - }}) - EndpointSCTPPort = gopacket.RegisterEndpointType(6, gopacket.EndpointTypeMetadata{Name: "SCTP", Formatter: func(b []byte) string { - return strconv.Itoa(int(binary.BigEndian.Uint16(b))) - }}) - EndpointRUDPPort = gopacket.RegisterEndpointType(7, gopacket.EndpointTypeMetadata{Name: "RUDP", Formatter: func(b []byte) string { - return strconv.Itoa(int(b[0])) - }}) - EndpointUDPLitePort = gopacket.RegisterEndpointType(8, gopacket.EndpointTypeMetadata{Name: "UDPLite", Formatter: func(b []byte) string { - return strconv.Itoa(int(binary.BigEndian.Uint16(b))) - }}) - EndpointPPP = gopacket.RegisterEndpointType(9, gopacket.EndpointTypeMetadata{Name: "PPP", Formatter: func([]byte) string { - return "point" - }}) -) - -// NewIPEndpoint creates a new IP (v4 or v6) endpoint from a net.IP address. -// It returns gopacket.InvalidEndpoint if the IP address is invalid. -func NewIPEndpoint(a net.IP) gopacket.Endpoint { - ipv4 := a.To4() - if ipv4 != nil { - return gopacket.NewEndpoint(EndpointIPv4, []byte(ipv4)) - } - - ipv6 := a.To16() - if ipv6 != nil { - return gopacket.NewEndpoint(EndpointIPv6, []byte(ipv6)) - } - - return gopacket.InvalidEndpoint -} - -// NewMACEndpoint returns a new MAC address endpoint. -func NewMACEndpoint(a net.HardwareAddr) gopacket.Endpoint { - return gopacket.NewEndpoint(EndpointMAC, []byte(a)) -} -func newPortEndpoint(t gopacket.EndpointType, p uint16) gopacket.Endpoint { - return gopacket.NewEndpoint(t, []byte{byte(p >> 8), byte(p)}) -} - -// NewTCPPortEndpoint returns an endpoint based on a TCP port. -func NewTCPPortEndpoint(p TCPPort) gopacket.Endpoint { - return newPortEndpoint(EndpointTCPPort, uint16(p)) -} - -// NewUDPPortEndpoint returns an endpoint based on a UDP port. -func NewUDPPortEndpoint(p UDPPort) gopacket.Endpoint { - return newPortEndpoint(EndpointUDPPort, uint16(p)) -} - -// NewSCTPPortEndpoint returns an endpoint based on a SCTP port. -func NewSCTPPortEndpoint(p SCTPPort) gopacket.Endpoint { - return newPortEndpoint(EndpointSCTPPort, uint16(p)) -} - -// NewRUDPPortEndpoint returns an endpoint based on a RUDP port. -func NewRUDPPortEndpoint(p RUDPPort) gopacket.Endpoint { - return gopacket.NewEndpoint(EndpointRUDPPort, []byte{byte(p)}) -} - -// NewUDPLitePortEndpoint returns an endpoint based on a UDPLite port. -func NewUDPLitePortEndpoint(p UDPLitePort) gopacket.Endpoint { - return newPortEndpoint(EndpointUDPLitePort, uint16(p)) -} diff --git a/vendor/github.com/google/gopacket/layers/enums.go b/vendor/github.com/google/gopacket/layers/enums.go deleted file mode 100644 index 8427bdaf47..0000000000 --- a/vendor/github.com/google/gopacket/layers/enums.go +++ /dev/null @@ -1,443 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// Copyright 2009-2011 Andreas Krennmair. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "fmt" - "runtime" - - "github.com/google/gopacket" -) - -// EnumMetadata keeps track of a set of metadata for each enumeration value -// for protocol enumerations. -type EnumMetadata struct { - // DecodeWith is the decoder to use to decode this protocol's data. - DecodeWith gopacket.Decoder - // Name is the name of the enumeration value. - Name string - // LayerType is the layer type implied by the given enum. - LayerType gopacket.LayerType -} - -// EthernetType is an enumeration of ethernet type values, and acts as a decoder -// for any type it supports. -type EthernetType uint16 - -const ( - // EthernetTypeLLC is not an actual ethernet type. It is instead a - // placeholder we use in Ethernet frames that use the 802.3 standard of - // srcmac|dstmac|length|LLC instead of srcmac|dstmac|ethertype. - EthernetTypeLLC EthernetType = 0 - EthernetTypeIPv4 EthernetType = 0x0800 - EthernetTypeARP EthernetType = 0x0806 - EthernetTypeIPv6 EthernetType = 0x86DD - EthernetTypeCiscoDiscovery EthernetType = 0x2000 - EthernetTypeNortelDiscovery EthernetType = 0x01a2 - EthernetTypeTransparentEthernetBridging EthernetType = 0x6558 - EthernetTypeDot1Q EthernetType = 0x8100 - EthernetTypePPP EthernetType = 0x880b - EthernetTypePPPoEDiscovery EthernetType = 0x8863 - EthernetTypePPPoESession EthernetType = 0x8864 - EthernetTypeMPLSUnicast EthernetType = 0x8847 - EthernetTypeMPLSMulticast EthernetType = 0x8848 - EthernetTypeEAPOL EthernetType = 0x888e - EthernetTypeERSPAN EthernetType = 0x88be - EthernetTypeQinQ EthernetType = 0x88a8 - EthernetTypeLinkLayerDiscovery EthernetType = 0x88cc - EthernetTypeEthernetCTP EthernetType = 0x9000 -) - -// IPProtocol is an enumeration of IP protocol values, and acts as a decoder -// for any type it supports. -type IPProtocol uint8 - -const ( - IPProtocolIPv6HopByHop IPProtocol = 0 - IPProtocolICMPv4 IPProtocol = 1 - IPProtocolIGMP IPProtocol = 2 - IPProtocolIPv4 IPProtocol = 4 - IPProtocolTCP IPProtocol = 6 - IPProtocolUDP IPProtocol = 17 - IPProtocolRUDP IPProtocol = 27 - IPProtocolIPv6 IPProtocol = 41 - IPProtocolIPv6Routing IPProtocol = 43 - IPProtocolIPv6Fragment IPProtocol = 44 - IPProtocolGRE IPProtocol = 47 - IPProtocolESP IPProtocol = 50 - IPProtocolAH IPProtocol = 51 - IPProtocolICMPv6 IPProtocol = 58 - IPProtocolNoNextHeader IPProtocol = 59 - IPProtocolIPv6Destination IPProtocol = 60 - IPProtocolOSPF IPProtocol = 89 - IPProtocolIPIP IPProtocol = 94 - IPProtocolEtherIP IPProtocol = 97 - IPProtocolVRRP IPProtocol = 112 - IPProtocolSCTP IPProtocol = 132 - IPProtocolUDPLite IPProtocol = 136 - IPProtocolMPLSInIP IPProtocol = 137 -) - -// LinkType is an enumeration of link types, and acts as a decoder for any -// link type it supports. -type LinkType uint8 - -const ( - // According to pcap-linktype(7) and http://www.tcpdump.org/linktypes.html - LinkTypeNull LinkType = 0 - LinkTypeEthernet LinkType = 1 - LinkTypeAX25 LinkType = 3 - LinkTypeTokenRing LinkType = 6 - LinkTypeArcNet LinkType = 7 - LinkTypeSLIP LinkType = 8 - LinkTypePPP LinkType = 9 - LinkTypeFDDI LinkType = 10 - LinkTypePPP_HDLC LinkType = 50 - LinkTypePPPEthernet LinkType = 51 - LinkTypeATM_RFC1483 LinkType = 100 - LinkTypeRaw LinkType = 101 - LinkTypeC_HDLC LinkType = 104 - LinkTypeIEEE802_11 LinkType = 105 - LinkTypeFRelay LinkType = 107 - LinkTypeLoop LinkType = 108 - LinkTypeLinuxSLL LinkType = 113 - LinkTypeLTalk LinkType = 114 - LinkTypePFLog LinkType = 117 - LinkTypePrismHeader LinkType = 119 - LinkTypeIPOverFC LinkType = 122 - LinkTypeSunATM LinkType = 123 - LinkTypeIEEE80211Radio LinkType = 127 - LinkTypeARCNetLinux LinkType = 129 - LinkTypeIPOver1394 LinkType = 138 - LinkTypeMTP2Phdr LinkType = 139 - LinkTypeMTP2 LinkType = 140 - LinkTypeMTP3 LinkType = 141 - LinkTypeSCCP LinkType = 142 - LinkTypeDOCSIS LinkType = 143 - LinkTypeLinuxIRDA LinkType = 144 - LinkTypeLinuxLAPD LinkType = 177 - LinkTypeLinuxUSB LinkType = 220 - LinkTypeFC2 LinkType = 224 - LinkTypeFC2Framed LinkType = 225 - LinkTypeIPv4 LinkType = 228 - LinkTypeIPv6 LinkType = 229 -) - -// PPPoECode is the PPPoE code enum, taken from http://tools.ietf.org/html/rfc2516 -type PPPoECode uint8 - -const ( - PPPoECodePADI PPPoECode = 0x09 - PPPoECodePADO PPPoECode = 0x07 - PPPoECodePADR PPPoECode = 0x19 - PPPoECodePADS PPPoECode = 0x65 - PPPoECodePADT PPPoECode = 0xA7 - PPPoECodeSession PPPoECode = 0x00 -) - -// PPPType is an enumeration of PPP type values, and acts as a decoder for any -// type it supports. -type PPPType uint16 - -const ( - PPPTypeIPv4 PPPType = 0x0021 - PPPTypeIPv6 PPPType = 0x0057 - PPPTypeMPLSUnicast PPPType = 0x0281 - PPPTypeMPLSMulticast PPPType = 0x0283 -) - -// SCTPChunkType is an enumeration of chunk types inside SCTP packets. -type SCTPChunkType uint8 - -const ( - SCTPChunkTypeData SCTPChunkType = 0 - SCTPChunkTypeInit SCTPChunkType = 1 - SCTPChunkTypeInitAck SCTPChunkType = 2 - SCTPChunkTypeSack SCTPChunkType = 3 - SCTPChunkTypeHeartbeat SCTPChunkType = 4 - SCTPChunkTypeHeartbeatAck SCTPChunkType = 5 - SCTPChunkTypeAbort SCTPChunkType = 6 - SCTPChunkTypeShutdown SCTPChunkType = 7 - SCTPChunkTypeShutdownAck SCTPChunkType = 8 - SCTPChunkTypeError SCTPChunkType = 9 - SCTPChunkTypeCookieEcho SCTPChunkType = 10 - SCTPChunkTypeCookieAck SCTPChunkType = 11 - SCTPChunkTypeShutdownComplete SCTPChunkType = 14 -) - -// FDDIFrameControl is an enumeration of FDDI frame control bytes. -type FDDIFrameControl uint8 - -const ( - FDDIFrameControlLLC FDDIFrameControl = 0x50 -) - -// EAPOLType is an enumeration of EAPOL packet types. -type EAPOLType uint8 - -const ( - EAPOLTypeEAP EAPOLType = 0 - EAPOLTypeStart EAPOLType = 1 - EAPOLTypeLogOff EAPOLType = 2 - EAPOLTypeKey EAPOLType = 3 - EAPOLTypeASFAlert EAPOLType = 4 -) - -// ProtocolFamily is the set of values defined as PF_* in sys/socket.h -type ProtocolFamily uint8 - -const ( - ProtocolFamilyIPv4 ProtocolFamily = 2 - // BSDs use different values for INET6... glory be. These values taken from - // tcpdump 4.3.0. - ProtocolFamilyIPv6BSD ProtocolFamily = 24 - ProtocolFamilyIPv6FreeBSD ProtocolFamily = 28 - ProtocolFamilyIPv6Darwin ProtocolFamily = 30 - ProtocolFamilyIPv6Linux ProtocolFamily = 10 -) - -// Dot11Type is a combination of IEEE 802.11 frame's Type and Subtype fields. -// By combining these two fields together into a single type, we're able to -// provide a String function that correctly displays the subtype given the -// top-level type. -// -// If you just care about the top-level type, use the MainType function. -type Dot11Type uint8 - -// MainType strips the subtype information from the given type, -// returning just the overarching type (Mgmt, Ctrl, Data, Reserved). -func (d Dot11Type) MainType() Dot11Type { - return d & dot11TypeMask -} - -func (d Dot11Type) QOS() bool { - return d&dot11QOSMask == Dot11TypeDataQOSData -} - -const ( - Dot11TypeMgmt Dot11Type = 0x00 - Dot11TypeCtrl Dot11Type = 0x01 - Dot11TypeData Dot11Type = 0x02 - Dot11TypeReserved Dot11Type = 0x03 - dot11TypeMask = 0x03 - dot11QOSMask = 0x23 - - // The following are type/subtype conglomerations. - - // Management - Dot11TypeMgmtAssociationReq Dot11Type = 0x00 - Dot11TypeMgmtAssociationResp Dot11Type = 0x04 - Dot11TypeMgmtReassociationReq Dot11Type = 0x08 - Dot11TypeMgmtReassociationResp Dot11Type = 0x0c - Dot11TypeMgmtProbeReq Dot11Type = 0x10 - Dot11TypeMgmtProbeResp Dot11Type = 0x14 - Dot11TypeMgmtMeasurementPilot Dot11Type = 0x18 - Dot11TypeMgmtBeacon Dot11Type = 0x20 - Dot11TypeMgmtATIM Dot11Type = 0x24 - Dot11TypeMgmtDisassociation Dot11Type = 0x28 - Dot11TypeMgmtAuthentication Dot11Type = 0x2c - Dot11TypeMgmtDeauthentication Dot11Type = 0x30 - Dot11TypeMgmtAction Dot11Type = 0x34 - Dot11TypeMgmtActionNoAck Dot11Type = 0x38 - - // Control - Dot11TypeCtrlWrapper Dot11Type = 0x1d - Dot11TypeCtrlBlockAckReq Dot11Type = 0x21 - Dot11TypeCtrlBlockAck Dot11Type = 0x25 - Dot11TypeCtrlPowersavePoll Dot11Type = 0x29 - Dot11TypeCtrlRTS Dot11Type = 0x2d - Dot11TypeCtrlCTS Dot11Type = 0x31 - Dot11TypeCtrlAck Dot11Type = 0x35 - Dot11TypeCtrlCFEnd Dot11Type = 0x39 - Dot11TypeCtrlCFEndAck Dot11Type = 0x3d - - // Data - Dot11TypeDataCFAck Dot11Type = 0x06 - Dot11TypeDataCFPoll Dot11Type = 0x0a - Dot11TypeDataCFAckPoll Dot11Type = 0x0e - Dot11TypeDataNull Dot11Type = 0x12 - Dot11TypeDataCFAckNoData Dot11Type = 0x16 - Dot11TypeDataCFPollNoData Dot11Type = 0x1a - Dot11TypeDataCFAckPollNoData Dot11Type = 0x1e - Dot11TypeDataQOSData Dot11Type = 0x22 - Dot11TypeDataQOSDataCFAck Dot11Type = 0x26 - Dot11TypeDataQOSDataCFPoll Dot11Type = 0x2a - Dot11TypeDataQOSDataCFAckPoll Dot11Type = 0x2e - Dot11TypeDataQOSNull Dot11Type = 0x32 - Dot11TypeDataQOSCFPollNoData Dot11Type = 0x3a - Dot11TypeDataQOSCFAckPollNoData Dot11Type = 0x3e -) - -// Decode a raw v4 or v6 IP packet. -func decodeIPv4or6(data []byte, p gopacket.PacketBuilder) error { - version := data[0] >> 4 - switch version { - case 4: - return decodeIPv4(data, p) - case 6: - return decodeIPv6(data, p) - } - return fmt.Errorf("Invalid IP packet version %v", version) -} - -func initActualTypeData() { - // Each of the XXXTypeMetadata arrays contains mappings of how to handle enum - // values for various enum types in gopacket/layers. - // These arrays are actually created by gen2.go and stored in - // enums_generated.go. - // - // So, EthernetTypeMetadata[2] contains information on how to handle EthernetType - // 2, including which name to give it and which decoder to use to decode - // packet data of that type. These arrays are filled by default with all of the - // protocols gopacket/layers knows how to handle, but users of the library can - // add new decoders or override existing ones. For example, if you write a better - // TCP decoder, you can override IPProtocolMetadata[IPProtocolTCP].DecodeWith - // with your new decoder, and all gopacket/layers decoding will use your new - // decoder whenever they encounter that IPProtocol. - - // Here we link up all enumerations with their respective names and decoders. - EthernetTypeMetadata[EthernetTypeLLC] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeLLC), Name: "LLC", LayerType: LayerTypeLLC} - EthernetTypeMetadata[EthernetTypeIPv4] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv4), Name: "IPv4", LayerType: LayerTypeIPv4} - EthernetTypeMetadata[EthernetTypeIPv6] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv6), Name: "IPv6", LayerType: LayerTypeIPv6} - EthernetTypeMetadata[EthernetTypeARP] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeARP), Name: "ARP", LayerType: LayerTypeARP} - EthernetTypeMetadata[EthernetTypeDot1Q] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot1Q), Name: "Dot1Q", LayerType: LayerTypeDot1Q} - EthernetTypeMetadata[EthernetTypePPP] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodePPP), Name: "PPP", LayerType: LayerTypePPP} - EthernetTypeMetadata[EthernetTypePPPoEDiscovery] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodePPPoE), Name: "PPPoEDiscovery", LayerType: LayerTypePPPoE} - EthernetTypeMetadata[EthernetTypePPPoESession] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodePPPoE), Name: "PPPoESession", LayerType: LayerTypePPPoE} - EthernetTypeMetadata[EthernetTypeEthernetCTP] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeEthernetCTP), Name: "EthernetCTP", LayerType: LayerTypeEthernetCTP} - EthernetTypeMetadata[EthernetTypeCiscoDiscovery] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeCiscoDiscovery), Name: "CiscoDiscovery", LayerType: LayerTypeCiscoDiscovery} - EthernetTypeMetadata[EthernetTypeNortelDiscovery] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeNortelDiscovery), Name: "NortelDiscovery", LayerType: LayerTypeNortelDiscovery} - EthernetTypeMetadata[EthernetTypeLinkLayerDiscovery] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeLinkLayerDiscovery), Name: "LinkLayerDiscovery", LayerType: LayerTypeLinkLayerDiscovery} - EthernetTypeMetadata[EthernetTypeMPLSUnicast] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeMPLS), Name: "MPLSUnicast", LayerType: LayerTypeMPLS} - EthernetTypeMetadata[EthernetTypeMPLSMulticast] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeMPLS), Name: "MPLSMulticast", LayerType: LayerTypeMPLS} - EthernetTypeMetadata[EthernetTypeEAPOL] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeEAPOL), Name: "EAPOL", LayerType: LayerTypeEAPOL} - EthernetTypeMetadata[EthernetTypeQinQ] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot1Q), Name: "Dot1Q", LayerType: LayerTypeDot1Q} - EthernetTypeMetadata[EthernetTypeTransparentEthernetBridging] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeEthernet), Name: "TransparentEthernetBridging", LayerType: LayerTypeEthernet} - EthernetTypeMetadata[EthernetTypeERSPAN] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeERSPANII), Name: "ERSPAN Type II", LayerType: LayerTypeERSPANII} - - IPProtocolMetadata[IPProtocolIPv4] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv4), Name: "IPv4", LayerType: LayerTypeIPv4} - IPProtocolMetadata[IPProtocolTCP] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeTCP), Name: "TCP", LayerType: LayerTypeTCP} - IPProtocolMetadata[IPProtocolUDP] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeUDP), Name: "UDP", LayerType: LayerTypeUDP} - IPProtocolMetadata[IPProtocolICMPv4] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeICMPv4), Name: "ICMPv4", LayerType: LayerTypeICMPv4} - IPProtocolMetadata[IPProtocolICMPv6] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeICMPv6), Name: "ICMPv6", LayerType: LayerTypeICMPv6} - IPProtocolMetadata[IPProtocolSCTP] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeSCTP), Name: "SCTP", LayerType: LayerTypeSCTP} - IPProtocolMetadata[IPProtocolIPv6] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv6), Name: "IPv6", LayerType: LayerTypeIPv6} - IPProtocolMetadata[IPProtocolIPIP] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv4), Name: "IPv4", LayerType: LayerTypeIPv4} - IPProtocolMetadata[IPProtocolEtherIP] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeEtherIP), Name: "EtherIP", LayerType: LayerTypeEtherIP} - IPProtocolMetadata[IPProtocolRUDP] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeRUDP), Name: "RUDP", LayerType: LayerTypeRUDP} - IPProtocolMetadata[IPProtocolGRE] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeGRE), Name: "GRE", LayerType: LayerTypeGRE} - IPProtocolMetadata[IPProtocolIPv6HopByHop] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv6HopByHop), Name: "IPv6HopByHop", LayerType: LayerTypeIPv6HopByHop} - IPProtocolMetadata[IPProtocolIPv6Routing] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv6Routing), Name: "IPv6Routing", LayerType: LayerTypeIPv6Routing} - IPProtocolMetadata[IPProtocolIPv6Fragment] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv6Fragment), Name: "IPv6Fragment", LayerType: LayerTypeIPv6Fragment} - IPProtocolMetadata[IPProtocolIPv6Destination] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv6Destination), Name: "IPv6Destination", LayerType: LayerTypeIPv6Destination} - IPProtocolMetadata[IPProtocolOSPF] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeOSPF), Name: "OSPF", LayerType: LayerTypeOSPF} - IPProtocolMetadata[IPProtocolAH] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPSecAH), Name: "IPSecAH", LayerType: LayerTypeIPSecAH} - IPProtocolMetadata[IPProtocolESP] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPSecESP), Name: "IPSecESP", LayerType: LayerTypeIPSecESP} - IPProtocolMetadata[IPProtocolUDPLite] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeUDPLite), Name: "UDPLite", LayerType: LayerTypeUDPLite} - IPProtocolMetadata[IPProtocolMPLSInIP] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeMPLS), Name: "MPLS", LayerType: LayerTypeMPLS} - IPProtocolMetadata[IPProtocolNoNextHeader] = EnumMetadata{DecodeWith: gopacket.DecodePayload, Name: "NoNextHeader", LayerType: gopacket.LayerTypePayload} - IPProtocolMetadata[IPProtocolIGMP] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIGMP), Name: "IGMP", LayerType: LayerTypeIGMP} - IPProtocolMetadata[IPProtocolVRRP] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeVRRP), Name: "VRRP", LayerType: LayerTypeVRRP} - - SCTPChunkTypeMetadata[SCTPChunkTypeData] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeSCTPData), Name: "Data"} - SCTPChunkTypeMetadata[SCTPChunkTypeInit] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeSCTPInit), Name: "Init"} - SCTPChunkTypeMetadata[SCTPChunkTypeInitAck] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeSCTPInit), Name: "InitAck"} - SCTPChunkTypeMetadata[SCTPChunkTypeSack] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeSCTPSack), Name: "Sack"} - SCTPChunkTypeMetadata[SCTPChunkTypeHeartbeat] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeSCTPHeartbeat), Name: "Heartbeat"} - SCTPChunkTypeMetadata[SCTPChunkTypeHeartbeatAck] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeSCTPHeartbeat), Name: "HeartbeatAck"} - SCTPChunkTypeMetadata[SCTPChunkTypeAbort] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeSCTPError), Name: "Abort"} - SCTPChunkTypeMetadata[SCTPChunkTypeError] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeSCTPError), Name: "Error"} - SCTPChunkTypeMetadata[SCTPChunkTypeShutdown] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeSCTPShutdown), Name: "Shutdown"} - SCTPChunkTypeMetadata[SCTPChunkTypeShutdownAck] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeSCTPShutdownAck), Name: "ShutdownAck"} - SCTPChunkTypeMetadata[SCTPChunkTypeCookieEcho] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeSCTPCookieEcho), Name: "CookieEcho"} - SCTPChunkTypeMetadata[SCTPChunkTypeCookieAck] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeSCTPEmptyLayer), Name: "CookieAck"} - SCTPChunkTypeMetadata[SCTPChunkTypeShutdownComplete] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeSCTPEmptyLayer), Name: "ShutdownComplete"} - - PPPTypeMetadata[PPPTypeIPv4] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv4), Name: "IPv4"} - PPPTypeMetadata[PPPTypeIPv6] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv6), Name: "IPv6"} - PPPTypeMetadata[PPPTypeMPLSUnicast] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeMPLS), Name: "MPLSUnicast"} - PPPTypeMetadata[PPPTypeMPLSMulticast] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeMPLS), Name: "MPLSMulticast"} - - PPPoECodeMetadata[PPPoECodeSession] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodePPP), Name: "PPP"} - - LinkTypeMetadata[LinkTypeEthernet] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeEthernet), Name: "Ethernet"} - LinkTypeMetadata[LinkTypePPP] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodePPP), Name: "PPP"} - LinkTypeMetadata[LinkTypeFDDI] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeFDDI), Name: "FDDI"} - LinkTypeMetadata[LinkTypeNull] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeLoopback), Name: "Null"} - LinkTypeMetadata[LinkTypeIEEE802_11] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11), Name: "Dot11"} - LinkTypeMetadata[LinkTypeLoop] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeLoopback), Name: "Loop"} - LinkTypeMetadata[LinkTypeIEEE802_11] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11), Name: "802.11"} - LinkTypeMetadata[LinkTypeRaw] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv4or6), Name: "Raw"} - // See https://github.com/the-tcpdump-group/libpcap/blob/170f717e6e818cdc4bcbbfd906b63088eaa88fa0/pcap/dlt.h#L85 - // Or https://github.com/wireshark/wireshark/blob/854cfe53efe44080609c78053ecfb2342ad84a08/wiretap/pcap-common.c#L508 - if runtime.GOOS == "openbsd" { - LinkTypeMetadata[14] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv4or6), Name: "Raw"} - } else { - LinkTypeMetadata[12] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv4or6), Name: "Raw"} - } - LinkTypeMetadata[LinkTypePFLog] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodePFLog), Name: "PFLog"} - LinkTypeMetadata[LinkTypeIEEE80211Radio] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeRadioTap), Name: "RadioTap"} - LinkTypeMetadata[LinkTypeLinuxUSB] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeUSB), Name: "USB"} - LinkTypeMetadata[LinkTypeLinuxSLL] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeLinuxSLL), Name: "Linux SLL"} - LinkTypeMetadata[LinkTypePrismHeader] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodePrismHeader), Name: "Prism"} - - FDDIFrameControlMetadata[FDDIFrameControlLLC] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeLLC), Name: "LLC"} - - EAPOLTypeMetadata[EAPOLTypeEAP] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeEAP), Name: "EAP", LayerType: LayerTypeEAP} - EAPOLTypeMetadata[EAPOLTypeKey] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeEAPOLKey), Name: "EAPOLKey", LayerType: LayerTypeEAPOLKey} - - ProtocolFamilyMetadata[ProtocolFamilyIPv4] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv4), Name: "IPv4", LayerType: LayerTypeIPv4} - ProtocolFamilyMetadata[ProtocolFamilyIPv6BSD] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv6), Name: "IPv6", LayerType: LayerTypeIPv6} - ProtocolFamilyMetadata[ProtocolFamilyIPv6FreeBSD] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv6), Name: "IPv6", LayerType: LayerTypeIPv6} - ProtocolFamilyMetadata[ProtocolFamilyIPv6Darwin] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv6), Name: "IPv6", LayerType: LayerTypeIPv6} - ProtocolFamilyMetadata[ProtocolFamilyIPv6Linux] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeIPv6), Name: "IPv6", LayerType: LayerTypeIPv6} - - Dot11TypeMetadata[Dot11TypeMgmtAssociationReq] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11MgmtAssociationReq), Name: "MgmtAssociationReq", LayerType: LayerTypeDot11MgmtAssociationReq} - Dot11TypeMetadata[Dot11TypeMgmtAssociationResp] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11MgmtAssociationResp), Name: "MgmtAssociationResp", LayerType: LayerTypeDot11MgmtAssociationResp} - Dot11TypeMetadata[Dot11TypeMgmtReassociationReq] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11MgmtReassociationReq), Name: "MgmtReassociationReq", LayerType: LayerTypeDot11MgmtReassociationReq} - Dot11TypeMetadata[Dot11TypeMgmtReassociationResp] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11MgmtReassociationResp), Name: "MgmtReassociationResp", LayerType: LayerTypeDot11MgmtReassociationResp} - Dot11TypeMetadata[Dot11TypeMgmtProbeReq] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11MgmtProbeReq), Name: "MgmtProbeReq", LayerType: LayerTypeDot11MgmtProbeReq} - Dot11TypeMetadata[Dot11TypeMgmtProbeResp] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11MgmtProbeResp), Name: "MgmtProbeResp", LayerType: LayerTypeDot11MgmtProbeResp} - Dot11TypeMetadata[Dot11TypeMgmtMeasurementPilot] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11MgmtMeasurementPilot), Name: "MgmtMeasurementPilot", LayerType: LayerTypeDot11MgmtMeasurementPilot} - Dot11TypeMetadata[Dot11TypeMgmtBeacon] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11MgmtBeacon), Name: "MgmtBeacon", LayerType: LayerTypeDot11MgmtBeacon} - Dot11TypeMetadata[Dot11TypeMgmtATIM] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11MgmtATIM), Name: "MgmtATIM", LayerType: LayerTypeDot11MgmtATIM} - Dot11TypeMetadata[Dot11TypeMgmtDisassociation] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11MgmtDisassociation), Name: "MgmtDisassociation", LayerType: LayerTypeDot11MgmtDisassociation} - Dot11TypeMetadata[Dot11TypeMgmtAuthentication] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11MgmtAuthentication), Name: "MgmtAuthentication", LayerType: LayerTypeDot11MgmtAuthentication} - Dot11TypeMetadata[Dot11TypeMgmtDeauthentication] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11MgmtDeauthentication), Name: "MgmtDeauthentication", LayerType: LayerTypeDot11MgmtDeauthentication} - Dot11TypeMetadata[Dot11TypeMgmtAction] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11MgmtAction), Name: "MgmtAction", LayerType: LayerTypeDot11MgmtAction} - Dot11TypeMetadata[Dot11TypeMgmtActionNoAck] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11MgmtActionNoAck), Name: "MgmtActionNoAck", LayerType: LayerTypeDot11MgmtActionNoAck} - Dot11TypeMetadata[Dot11TypeCtrl] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11Ctrl), Name: "Ctrl", LayerType: LayerTypeDot11Ctrl} - Dot11TypeMetadata[Dot11TypeCtrlWrapper] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11Ctrl), Name: "CtrlWrapper", LayerType: LayerTypeDot11Ctrl} - Dot11TypeMetadata[Dot11TypeCtrlBlockAckReq] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11CtrlBlockAckReq), Name: "CtrlBlockAckReq", LayerType: LayerTypeDot11CtrlBlockAckReq} - Dot11TypeMetadata[Dot11TypeCtrlBlockAck] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11CtrlBlockAck), Name: "CtrlBlockAck", LayerType: LayerTypeDot11CtrlBlockAck} - Dot11TypeMetadata[Dot11TypeCtrlPowersavePoll] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11CtrlPowersavePoll), Name: "CtrlPowersavePoll", LayerType: LayerTypeDot11CtrlPowersavePoll} - Dot11TypeMetadata[Dot11TypeCtrlRTS] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11CtrlRTS), Name: "CtrlRTS", LayerType: LayerTypeDot11CtrlRTS} - Dot11TypeMetadata[Dot11TypeCtrlCTS] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11CtrlCTS), Name: "CtrlCTS", LayerType: LayerTypeDot11CtrlCTS} - Dot11TypeMetadata[Dot11TypeCtrlAck] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11CtrlAck), Name: "CtrlAck", LayerType: LayerTypeDot11CtrlAck} - Dot11TypeMetadata[Dot11TypeCtrlCFEnd] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11CtrlCFEnd), Name: "CtrlCFEnd", LayerType: LayerTypeDot11CtrlCFEnd} - Dot11TypeMetadata[Dot11TypeCtrlCFEndAck] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11CtrlCFEndAck), Name: "CtrlCFEndAck", LayerType: LayerTypeDot11CtrlCFEndAck} - Dot11TypeMetadata[Dot11TypeData] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11Data), Name: "Data", LayerType: LayerTypeDot11Data} - Dot11TypeMetadata[Dot11TypeDataCFAck] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11DataCFAck), Name: "DataCFAck", LayerType: LayerTypeDot11DataCFAck} - Dot11TypeMetadata[Dot11TypeDataCFPoll] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11DataCFPoll), Name: "DataCFPoll", LayerType: LayerTypeDot11DataCFPoll} - Dot11TypeMetadata[Dot11TypeDataCFAckPoll] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11DataCFAckPoll), Name: "DataCFAckPoll", LayerType: LayerTypeDot11DataCFAckPoll} - Dot11TypeMetadata[Dot11TypeDataNull] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11DataNull), Name: "DataNull", LayerType: LayerTypeDot11DataNull} - Dot11TypeMetadata[Dot11TypeDataCFAckNoData] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11DataCFAckNoData), Name: "DataCFAckNoData", LayerType: LayerTypeDot11DataCFAckNoData} - Dot11TypeMetadata[Dot11TypeDataCFPollNoData] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11DataCFPollNoData), Name: "DataCFPollNoData", LayerType: LayerTypeDot11DataCFPollNoData} - Dot11TypeMetadata[Dot11TypeDataCFAckPollNoData] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11DataCFAckPollNoData), Name: "DataCFAckPollNoData", LayerType: LayerTypeDot11DataCFAckPollNoData} - Dot11TypeMetadata[Dot11TypeDataQOSData] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11DataQOSData), Name: "DataQOSData", LayerType: LayerTypeDot11DataQOSData} - Dot11TypeMetadata[Dot11TypeDataQOSDataCFAck] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11DataQOSDataCFAck), Name: "DataQOSDataCFAck", LayerType: LayerTypeDot11DataQOSDataCFAck} - Dot11TypeMetadata[Dot11TypeDataQOSDataCFPoll] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11DataQOSDataCFPoll), Name: "DataQOSDataCFPoll", LayerType: LayerTypeDot11DataQOSDataCFPoll} - Dot11TypeMetadata[Dot11TypeDataQOSDataCFAckPoll] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11DataQOSDataCFAckPoll), Name: "DataQOSDataCFAckPoll", LayerType: LayerTypeDot11DataQOSDataCFAckPoll} - Dot11TypeMetadata[Dot11TypeDataQOSNull] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11DataQOSNull), Name: "DataQOSNull", LayerType: LayerTypeDot11DataQOSNull} - Dot11TypeMetadata[Dot11TypeDataQOSCFPollNoData] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11DataQOSCFPollNoData), Name: "DataQOSCFPollNoData", LayerType: LayerTypeDot11DataQOSCFPollNoData} - Dot11TypeMetadata[Dot11TypeDataQOSCFAckPollNoData] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeDot11DataQOSCFAckPollNoData), Name: "DataQOSCFAckPollNoData", LayerType: LayerTypeDot11DataQOSCFAckPollNoData} - - USBTransportTypeMetadata[USBTransportTypeInterrupt] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeUSBInterrupt), Name: "Interrupt", LayerType: LayerTypeUSBInterrupt} - USBTransportTypeMetadata[USBTransportTypeControl] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeUSBControl), Name: "Control", LayerType: LayerTypeUSBControl} - USBTransportTypeMetadata[USBTransportTypeBulk] = EnumMetadata{DecodeWith: gopacket.DecodeFunc(decodeUSBBulk), Name: "Bulk", LayerType: LayerTypeUSBBulk} -} diff --git a/vendor/github.com/google/gopacket/layers/enums_generated.go b/vendor/github.com/google/gopacket/layers/enums_generated.go deleted file mode 100644 index bf77aac501..0000000000 --- a/vendor/github.com/google/gopacket/layers/enums_generated.go +++ /dev/null @@ -1,434 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. - -package layers - -// Created by gen2.go, don't edit manually -// Generated at 2017-10-23 10:20:24.458771856 -0600 MDT m=+0.001159033 - -import ( - "fmt" - - "github.com/google/gopacket" -) - -func init() { - initUnknownTypesForLinkType() - initUnknownTypesForEthernetType() - initUnknownTypesForPPPType() - initUnknownTypesForIPProtocol() - initUnknownTypesForSCTPChunkType() - initUnknownTypesForPPPoECode() - initUnknownTypesForFDDIFrameControl() - initUnknownTypesForEAPOLType() - initUnknownTypesForProtocolFamily() - initUnknownTypesForDot11Type() - initUnknownTypesForUSBTransportType() - initActualTypeData() -} - -// Decoder calls LinkTypeMetadata.DecodeWith's decoder. -func (a LinkType) Decode(data []byte, p gopacket.PacketBuilder) error { - return LinkTypeMetadata[a].DecodeWith.Decode(data, p) -} - -// String returns LinkTypeMetadata.Name. -func (a LinkType) String() string { - return LinkTypeMetadata[a].Name -} - -// LayerType returns LinkTypeMetadata.LayerType. -func (a LinkType) LayerType() gopacket.LayerType { - return LinkTypeMetadata[a].LayerType -} - -type errorDecoderForLinkType int - -func (a *errorDecoderForLinkType) Decode(data []byte, p gopacket.PacketBuilder) error { - return a -} -func (a *errorDecoderForLinkType) Error() string { - return fmt.Sprintf("Unable to decode LinkType %d", int(*a)) -} - -var errorDecodersForLinkType [256]errorDecoderForLinkType -var LinkTypeMetadata [256]EnumMetadata - -func initUnknownTypesForLinkType() { - for i := 0; i < 256; i++ { - errorDecodersForLinkType[i] = errorDecoderForLinkType(i) - LinkTypeMetadata[i] = EnumMetadata{ - DecodeWith: &errorDecodersForLinkType[i], - Name: "UnknownLinkType", - } - } -} - -// Decoder calls EthernetTypeMetadata.DecodeWith's decoder. -func (a EthernetType) Decode(data []byte, p gopacket.PacketBuilder) error { - return EthernetTypeMetadata[a].DecodeWith.Decode(data, p) -} - -// String returns EthernetTypeMetadata.Name. -func (a EthernetType) String() string { - return EthernetTypeMetadata[a].Name -} - -// LayerType returns EthernetTypeMetadata.LayerType. -func (a EthernetType) LayerType() gopacket.LayerType { - return EthernetTypeMetadata[a].LayerType -} - -type errorDecoderForEthernetType int - -func (a *errorDecoderForEthernetType) Decode(data []byte, p gopacket.PacketBuilder) error { - return a -} -func (a *errorDecoderForEthernetType) Error() string { - return fmt.Sprintf("Unable to decode EthernetType %d", int(*a)) -} - -var errorDecodersForEthernetType [65536]errorDecoderForEthernetType -var EthernetTypeMetadata [65536]EnumMetadata - -func initUnknownTypesForEthernetType() { - for i := 0; i < 65536; i++ { - errorDecodersForEthernetType[i] = errorDecoderForEthernetType(i) - EthernetTypeMetadata[i] = EnumMetadata{ - DecodeWith: &errorDecodersForEthernetType[i], - Name: "UnknownEthernetType", - } - } -} - -// Decoder calls PPPTypeMetadata.DecodeWith's decoder. -func (a PPPType) Decode(data []byte, p gopacket.PacketBuilder) error { - return PPPTypeMetadata[a].DecodeWith.Decode(data, p) -} - -// String returns PPPTypeMetadata.Name. -func (a PPPType) String() string { - return PPPTypeMetadata[a].Name -} - -// LayerType returns PPPTypeMetadata.LayerType. -func (a PPPType) LayerType() gopacket.LayerType { - return PPPTypeMetadata[a].LayerType -} - -type errorDecoderForPPPType int - -func (a *errorDecoderForPPPType) Decode(data []byte, p gopacket.PacketBuilder) error { - return a -} -func (a *errorDecoderForPPPType) Error() string { - return fmt.Sprintf("Unable to decode PPPType %d", int(*a)) -} - -var errorDecodersForPPPType [65536]errorDecoderForPPPType -var PPPTypeMetadata [65536]EnumMetadata - -func initUnknownTypesForPPPType() { - for i := 0; i < 65536; i++ { - errorDecodersForPPPType[i] = errorDecoderForPPPType(i) - PPPTypeMetadata[i] = EnumMetadata{ - DecodeWith: &errorDecodersForPPPType[i], - Name: "UnknownPPPType", - } - } -} - -// Decoder calls IPProtocolMetadata.DecodeWith's decoder. -func (a IPProtocol) Decode(data []byte, p gopacket.PacketBuilder) error { - return IPProtocolMetadata[a].DecodeWith.Decode(data, p) -} - -// String returns IPProtocolMetadata.Name. -func (a IPProtocol) String() string { - return IPProtocolMetadata[a].Name -} - -// LayerType returns IPProtocolMetadata.LayerType. -func (a IPProtocol) LayerType() gopacket.LayerType { - return IPProtocolMetadata[a].LayerType -} - -type errorDecoderForIPProtocol int - -func (a *errorDecoderForIPProtocol) Decode(data []byte, p gopacket.PacketBuilder) error { - return a -} -func (a *errorDecoderForIPProtocol) Error() string { - return fmt.Sprintf("Unable to decode IPProtocol %d", int(*a)) -} - -var errorDecodersForIPProtocol [256]errorDecoderForIPProtocol -var IPProtocolMetadata [256]EnumMetadata - -func initUnknownTypesForIPProtocol() { - for i := 0; i < 256; i++ { - errorDecodersForIPProtocol[i] = errorDecoderForIPProtocol(i) - IPProtocolMetadata[i] = EnumMetadata{ - DecodeWith: &errorDecodersForIPProtocol[i], - Name: "UnknownIPProtocol", - } - } -} - -// Decoder calls SCTPChunkTypeMetadata.DecodeWith's decoder. -func (a SCTPChunkType) Decode(data []byte, p gopacket.PacketBuilder) error { - return SCTPChunkTypeMetadata[a].DecodeWith.Decode(data, p) -} - -// String returns SCTPChunkTypeMetadata.Name. -func (a SCTPChunkType) String() string { - return SCTPChunkTypeMetadata[a].Name -} - -// LayerType returns SCTPChunkTypeMetadata.LayerType. -func (a SCTPChunkType) LayerType() gopacket.LayerType { - return SCTPChunkTypeMetadata[a].LayerType -} - -type errorDecoderForSCTPChunkType int - -func (a *errorDecoderForSCTPChunkType) Decode(data []byte, p gopacket.PacketBuilder) error { - return a -} -func (a *errorDecoderForSCTPChunkType) Error() string { - return fmt.Sprintf("Unable to decode SCTPChunkType %d", int(*a)) -} - -var errorDecodersForSCTPChunkType [256]errorDecoderForSCTPChunkType -var SCTPChunkTypeMetadata [256]EnumMetadata - -func initUnknownTypesForSCTPChunkType() { - for i := 0; i < 256; i++ { - errorDecodersForSCTPChunkType[i] = errorDecoderForSCTPChunkType(i) - SCTPChunkTypeMetadata[i] = EnumMetadata{ - DecodeWith: &errorDecodersForSCTPChunkType[i], - Name: "UnknownSCTPChunkType", - } - } -} - -// Decoder calls PPPoECodeMetadata.DecodeWith's decoder. -func (a PPPoECode) Decode(data []byte, p gopacket.PacketBuilder) error { - return PPPoECodeMetadata[a].DecodeWith.Decode(data, p) -} - -// String returns PPPoECodeMetadata.Name. -func (a PPPoECode) String() string { - return PPPoECodeMetadata[a].Name -} - -// LayerType returns PPPoECodeMetadata.LayerType. -func (a PPPoECode) LayerType() gopacket.LayerType { - return PPPoECodeMetadata[a].LayerType -} - -type errorDecoderForPPPoECode int - -func (a *errorDecoderForPPPoECode) Decode(data []byte, p gopacket.PacketBuilder) error { - return a -} -func (a *errorDecoderForPPPoECode) Error() string { - return fmt.Sprintf("Unable to decode PPPoECode %d", int(*a)) -} - -var errorDecodersForPPPoECode [256]errorDecoderForPPPoECode -var PPPoECodeMetadata [256]EnumMetadata - -func initUnknownTypesForPPPoECode() { - for i := 0; i < 256; i++ { - errorDecodersForPPPoECode[i] = errorDecoderForPPPoECode(i) - PPPoECodeMetadata[i] = EnumMetadata{ - DecodeWith: &errorDecodersForPPPoECode[i], - Name: "UnknownPPPoECode", - } - } -} - -// Decoder calls FDDIFrameControlMetadata.DecodeWith's decoder. -func (a FDDIFrameControl) Decode(data []byte, p gopacket.PacketBuilder) error { - return FDDIFrameControlMetadata[a].DecodeWith.Decode(data, p) -} - -// String returns FDDIFrameControlMetadata.Name. -func (a FDDIFrameControl) String() string { - return FDDIFrameControlMetadata[a].Name -} - -// LayerType returns FDDIFrameControlMetadata.LayerType. -func (a FDDIFrameControl) LayerType() gopacket.LayerType { - return FDDIFrameControlMetadata[a].LayerType -} - -type errorDecoderForFDDIFrameControl int - -func (a *errorDecoderForFDDIFrameControl) Decode(data []byte, p gopacket.PacketBuilder) error { - return a -} -func (a *errorDecoderForFDDIFrameControl) Error() string { - return fmt.Sprintf("Unable to decode FDDIFrameControl %d", int(*a)) -} - -var errorDecodersForFDDIFrameControl [256]errorDecoderForFDDIFrameControl -var FDDIFrameControlMetadata [256]EnumMetadata - -func initUnknownTypesForFDDIFrameControl() { - for i := 0; i < 256; i++ { - errorDecodersForFDDIFrameControl[i] = errorDecoderForFDDIFrameControl(i) - FDDIFrameControlMetadata[i] = EnumMetadata{ - DecodeWith: &errorDecodersForFDDIFrameControl[i], - Name: "UnknownFDDIFrameControl", - } - } -} - -// Decoder calls EAPOLTypeMetadata.DecodeWith's decoder. -func (a EAPOLType) Decode(data []byte, p gopacket.PacketBuilder) error { - return EAPOLTypeMetadata[a].DecodeWith.Decode(data, p) -} - -// String returns EAPOLTypeMetadata.Name. -func (a EAPOLType) String() string { - return EAPOLTypeMetadata[a].Name -} - -// LayerType returns EAPOLTypeMetadata.LayerType. -func (a EAPOLType) LayerType() gopacket.LayerType { - return EAPOLTypeMetadata[a].LayerType -} - -type errorDecoderForEAPOLType int - -func (a *errorDecoderForEAPOLType) Decode(data []byte, p gopacket.PacketBuilder) error { - return a -} -func (a *errorDecoderForEAPOLType) Error() string { - return fmt.Sprintf("Unable to decode EAPOLType %d", int(*a)) -} - -var errorDecodersForEAPOLType [256]errorDecoderForEAPOLType -var EAPOLTypeMetadata [256]EnumMetadata - -func initUnknownTypesForEAPOLType() { - for i := 0; i < 256; i++ { - errorDecodersForEAPOLType[i] = errorDecoderForEAPOLType(i) - EAPOLTypeMetadata[i] = EnumMetadata{ - DecodeWith: &errorDecodersForEAPOLType[i], - Name: "UnknownEAPOLType", - } - } -} - -// Decoder calls ProtocolFamilyMetadata.DecodeWith's decoder. -func (a ProtocolFamily) Decode(data []byte, p gopacket.PacketBuilder) error { - return ProtocolFamilyMetadata[a].DecodeWith.Decode(data, p) -} - -// String returns ProtocolFamilyMetadata.Name. -func (a ProtocolFamily) String() string { - return ProtocolFamilyMetadata[a].Name -} - -// LayerType returns ProtocolFamilyMetadata.LayerType. -func (a ProtocolFamily) LayerType() gopacket.LayerType { - return ProtocolFamilyMetadata[a].LayerType -} - -type errorDecoderForProtocolFamily int - -func (a *errorDecoderForProtocolFamily) Decode(data []byte, p gopacket.PacketBuilder) error { - return a -} -func (a *errorDecoderForProtocolFamily) Error() string { - return fmt.Sprintf("Unable to decode ProtocolFamily %d", int(*a)) -} - -var errorDecodersForProtocolFamily [256]errorDecoderForProtocolFamily -var ProtocolFamilyMetadata [256]EnumMetadata - -func initUnknownTypesForProtocolFamily() { - for i := 0; i < 256; i++ { - errorDecodersForProtocolFamily[i] = errorDecoderForProtocolFamily(i) - ProtocolFamilyMetadata[i] = EnumMetadata{ - DecodeWith: &errorDecodersForProtocolFamily[i], - Name: "UnknownProtocolFamily", - } - } -} - -// Decoder calls Dot11TypeMetadata.DecodeWith's decoder. -func (a Dot11Type) Decode(data []byte, p gopacket.PacketBuilder) error { - return Dot11TypeMetadata[a].DecodeWith.Decode(data, p) -} - -// String returns Dot11TypeMetadata.Name. -func (a Dot11Type) String() string { - return Dot11TypeMetadata[a].Name -} - -// LayerType returns Dot11TypeMetadata.LayerType. -func (a Dot11Type) LayerType() gopacket.LayerType { - return Dot11TypeMetadata[a].LayerType -} - -type errorDecoderForDot11Type int - -func (a *errorDecoderForDot11Type) Decode(data []byte, p gopacket.PacketBuilder) error { - return a -} -func (a *errorDecoderForDot11Type) Error() string { - return fmt.Sprintf("Unable to decode Dot11Type %d", int(*a)) -} - -var errorDecodersForDot11Type [256]errorDecoderForDot11Type -var Dot11TypeMetadata [256]EnumMetadata - -func initUnknownTypesForDot11Type() { - for i := 0; i < 256; i++ { - errorDecodersForDot11Type[i] = errorDecoderForDot11Type(i) - Dot11TypeMetadata[i] = EnumMetadata{ - DecodeWith: &errorDecodersForDot11Type[i], - Name: "UnknownDot11Type", - } - } -} - -// Decoder calls USBTransportTypeMetadata.DecodeWith's decoder. -func (a USBTransportType) Decode(data []byte, p gopacket.PacketBuilder) error { - return USBTransportTypeMetadata[a].DecodeWith.Decode(data, p) -} - -// String returns USBTransportTypeMetadata.Name. -func (a USBTransportType) String() string { - return USBTransportTypeMetadata[a].Name -} - -// LayerType returns USBTransportTypeMetadata.LayerType. -func (a USBTransportType) LayerType() gopacket.LayerType { - return USBTransportTypeMetadata[a].LayerType -} - -type errorDecoderForUSBTransportType int - -func (a *errorDecoderForUSBTransportType) Decode(data []byte, p gopacket.PacketBuilder) error { - return a -} -func (a *errorDecoderForUSBTransportType) Error() string { - return fmt.Sprintf("Unable to decode USBTransportType %d", int(*a)) -} - -var errorDecodersForUSBTransportType [256]errorDecoderForUSBTransportType -var USBTransportTypeMetadata [256]EnumMetadata - -func initUnknownTypesForUSBTransportType() { - for i := 0; i < 256; i++ { - errorDecodersForUSBTransportType[i] = errorDecoderForUSBTransportType(i) - USBTransportTypeMetadata[i] = EnumMetadata{ - DecodeWith: &errorDecodersForUSBTransportType[i], - Name: "UnknownUSBTransportType", - } - } -} diff --git a/vendor/github.com/google/gopacket/layers/erspan2.go b/vendor/github.com/google/gopacket/layers/erspan2.go deleted file mode 100644 index 154436205e..0000000000 --- a/vendor/github.com/google/gopacket/layers/erspan2.go +++ /dev/null @@ -1,86 +0,0 @@ -// Copyright 2018 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - - "github.com/google/gopacket" -) - -const ( - //ERSPANIIVersionObsolete - The obsolete value for the version field - ERSPANIIVersionObsolete = 0x0 - // ERSPANIIVersion - The current value for the version field - ERSPANIIVersion = 0x1 -) - -// ERSPANII contains all of the fields found in an ERSPAN Type II header -// https://tools.ietf.org/html/draft-foschiano-erspan-03 -type ERSPANII struct { - BaseLayer - IsTruncated bool - Version, CoS, TrunkEncap uint8 - VLANIdentifier, SessionID, Reserved uint16 - Index uint32 -} - -func (erspan2 *ERSPANII) LayerType() gopacket.LayerType { return LayerTypeERSPANII } - -// DecodeFromBytes decodes the given bytes into this layer. -func (erspan2 *ERSPANII) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - erspan2Length := 8 - erspan2.Version = data[0] & 0xF0 >> 4 - erspan2.VLANIdentifier = binary.BigEndian.Uint16(data[:2]) & 0x0FFF - erspan2.CoS = data[2] & 0xE0 >> 5 - erspan2.TrunkEncap = data[2] & 0x18 >> 3 - erspan2.IsTruncated = data[2]&0x4>>2 != 0 - erspan2.SessionID = binary.BigEndian.Uint16(data[2:4]) & 0x03FF - erspan2.Reserved = binary.BigEndian.Uint16(data[4:6]) & 0xFFF0 >> 4 - erspan2.Index = binary.BigEndian.Uint32(data[4:8]) & 0x000FFFFF - erspan2.Contents = data[:erspan2Length] - erspan2.Payload = data[erspan2Length:] - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (erspan2 *ERSPANII) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - bytes, err := b.PrependBytes(8) - if err != nil { - return err - } - - twoByteInt := uint16(erspan2.Version&0xF)<<12 | erspan2.VLANIdentifier&0x0FFF - binary.BigEndian.PutUint16(bytes, twoByteInt) - - twoByteInt = uint16(erspan2.CoS&0x7)<<13 | uint16(erspan2.TrunkEncap&0x3)<<11 | erspan2.SessionID&0x03FF - if erspan2.IsTruncated { - twoByteInt |= 0x400 - } - binary.BigEndian.PutUint16(bytes[2:], twoByteInt) - - fourByteInt := uint32(erspan2.Reserved&0x0FFF)<<20 | erspan2.Index&0x000FFFFF - binary.BigEndian.PutUint32(bytes[4:], fourByteInt) - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (erspan2 *ERSPANII) CanDecode() gopacket.LayerClass { - return LayerTypeERSPANII -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (erspan2 *ERSPANII) NextLayerType() gopacket.LayerType { - return LayerTypeEthernet -} - -func decodeERSPANII(data []byte, p gopacket.PacketBuilder) error { - erspan2 := &ERSPANII{} - return decodingLayerDecoder(erspan2, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/etherip.go b/vendor/github.com/google/gopacket/layers/etherip.go deleted file mode 100644 index 5b7b7229ec..0000000000 --- a/vendor/github.com/google/gopacket/layers/etherip.go +++ /dev/null @@ -1,45 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "github.com/google/gopacket" -) - -// EtherIP is the struct for storing RFC 3378 EtherIP packet headers. -type EtherIP struct { - BaseLayer - Version uint8 - Reserved uint16 -} - -// LayerType returns gopacket.LayerTypeEtherIP. -func (e *EtherIP) LayerType() gopacket.LayerType { return LayerTypeEtherIP } - -// DecodeFromBytes decodes the given bytes into this layer. -func (e *EtherIP) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - e.Version = data[0] >> 4 - e.Reserved = binary.BigEndian.Uint16(data[:2]) & 0x0fff - e.BaseLayer = BaseLayer{data[:2], data[2:]} - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (e *EtherIP) CanDecode() gopacket.LayerClass { - return LayerTypeEtherIP -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (e *EtherIP) NextLayerType() gopacket.LayerType { - return LayerTypeEthernet -} - -func decodeEtherIP(data []byte, p gopacket.PacketBuilder) error { - e := &EtherIP{} - return decodingLayerDecoder(e, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/ethernet.go b/vendor/github.com/google/gopacket/layers/ethernet.go deleted file mode 100644 index b73748f2f7..0000000000 --- a/vendor/github.com/google/gopacket/layers/ethernet.go +++ /dev/null @@ -1,123 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// Copyright 2009-2011 Andreas Krennmair. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - "github.com/google/gopacket" - "net" -) - -// EthernetBroadcast is the broadcast MAC address used by Ethernet. -var EthernetBroadcast = net.HardwareAddr{0xff, 0xff, 0xff, 0xff, 0xff, 0xff} - -// Ethernet is the layer for Ethernet frame headers. -type Ethernet struct { - BaseLayer - SrcMAC, DstMAC net.HardwareAddr - EthernetType EthernetType - // Length is only set if a length field exists within this header. Ethernet - // headers follow two different standards, one that uses an EthernetType, the - // other which defines a length the follows with a LLC header (802.3). If the - // former is the case, we set EthernetType and Length stays 0. In the latter - // case, we set Length and EthernetType = EthernetTypeLLC. - Length uint16 -} - -// LayerType returns LayerTypeEthernet -func (e *Ethernet) LayerType() gopacket.LayerType { return LayerTypeEthernet } - -func (e *Ethernet) LinkFlow() gopacket.Flow { - return gopacket.NewFlow(EndpointMAC, e.SrcMAC, e.DstMAC) -} - -func (eth *Ethernet) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 14 { - return errors.New("Ethernet packet too small") - } - eth.DstMAC = net.HardwareAddr(data[0:6]) - eth.SrcMAC = net.HardwareAddr(data[6:12]) - eth.EthernetType = EthernetType(binary.BigEndian.Uint16(data[12:14])) - eth.BaseLayer = BaseLayer{data[:14], data[14:]} - eth.Length = 0 - if eth.EthernetType < 0x0600 { - eth.Length = uint16(eth.EthernetType) - eth.EthernetType = EthernetTypeLLC - if cmp := len(eth.Payload) - int(eth.Length); cmp < 0 { - df.SetTruncated() - } else if cmp > 0 { - // Strip off bytes at the end, since we have too many bytes - eth.Payload = eth.Payload[:len(eth.Payload)-cmp] - } - // fmt.Println(eth) - } - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (eth *Ethernet) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - if len(eth.DstMAC) != 6 { - return fmt.Errorf("invalid dst MAC: %v", eth.DstMAC) - } - if len(eth.SrcMAC) != 6 { - return fmt.Errorf("invalid src MAC: %v", eth.SrcMAC) - } - payload := b.Bytes() - bytes, err := b.PrependBytes(14) - if err != nil { - return err - } - copy(bytes, eth.DstMAC) - copy(bytes[6:], eth.SrcMAC) - if eth.Length != 0 || eth.EthernetType == EthernetTypeLLC { - if opts.FixLengths { - eth.Length = uint16(len(payload)) - } - if eth.EthernetType != EthernetTypeLLC { - return fmt.Errorf("ethernet type %v not compatible with length value %v", eth.EthernetType, eth.Length) - } else if eth.Length > 0x0600 { - return fmt.Errorf("invalid ethernet length %v", eth.Length) - } - binary.BigEndian.PutUint16(bytes[12:], eth.Length) - } else { - binary.BigEndian.PutUint16(bytes[12:], uint16(eth.EthernetType)) - } - length := len(b.Bytes()) - if length < 60 { - // Pad out to 60 bytes. - padding, err := b.AppendBytes(60 - length) - if err != nil { - return err - } - copy(padding, lotsOfZeros[:]) - } - return nil -} - -func (eth *Ethernet) CanDecode() gopacket.LayerClass { - return LayerTypeEthernet -} - -func (eth *Ethernet) NextLayerType() gopacket.LayerType { - return eth.EthernetType.LayerType() -} - -func decodeEthernet(data []byte, p gopacket.PacketBuilder) error { - eth := &Ethernet{} - err := eth.DecodeFromBytes(data, p) - if err != nil { - return err - } - p.AddLayer(eth) - p.SetLinkLayer(eth) - return p.NextDecoder(eth.EthernetType) -} diff --git a/vendor/github.com/google/gopacket/layers/fddi.go b/vendor/github.com/google/gopacket/layers/fddi.go deleted file mode 100644 index ed9e1957b9..0000000000 --- a/vendor/github.com/google/gopacket/layers/fddi.go +++ /dev/null @@ -1,41 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "github.com/google/gopacket" - "net" -) - -// FDDI contains the header for FDDI frames. -type FDDI struct { - BaseLayer - FrameControl FDDIFrameControl - Priority uint8 - SrcMAC, DstMAC net.HardwareAddr -} - -// LayerType returns LayerTypeFDDI. -func (f *FDDI) LayerType() gopacket.LayerType { return LayerTypeFDDI } - -// LinkFlow returns a new flow of type EndpointMAC. -func (f *FDDI) LinkFlow() gopacket.Flow { - return gopacket.NewFlow(EndpointMAC, f.SrcMAC, f.DstMAC) -} - -func decodeFDDI(data []byte, p gopacket.PacketBuilder) error { - f := &FDDI{ - FrameControl: FDDIFrameControl(data[0] & 0xF8), - Priority: data[0] & 0x07, - SrcMAC: net.HardwareAddr(data[1:7]), - DstMAC: net.HardwareAddr(data[7:13]), - BaseLayer: BaseLayer{data[:13], data[13:]}, - } - p.SetLinkLayer(f) - p.AddLayer(f) - return p.NextDecoder(f.FrameControl) -} diff --git a/vendor/github.com/google/gopacket/layers/fuzz_layer.go b/vendor/github.com/google/gopacket/layers/fuzz_layer.go deleted file mode 100644 index 606e45d24c..0000000000 --- a/vendor/github.com/google/gopacket/layers/fuzz_layer.go +++ /dev/null @@ -1,39 +0,0 @@ -// Copyright 2019 The GoPacket Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style license that can be found -// in the LICENSE file in the root of the source tree. - -package layers - -import ( - "encoding/binary" - - "github.com/google/gopacket" -) - -// FuzzLayer is a fuzz target for the layers package of gopacket -// A fuzz target is a function processing a binary blob (byte slice) -// The process here is to interpret this data as a packet, and print the layers contents. -// The decoding options and the starting layer are encoded in the first bytes. -// The function returns 1 if this is a valid packet (no error layer) -func FuzzLayer(data []byte) int { - if len(data) < 3 { - return 0 - } - // use the first two bytes to choose the top level layer - startLayer := binary.BigEndian.Uint16(data[:2]) - var fuzzOpts = gopacket.DecodeOptions{ - Lazy: data[2]&0x1 != 0, - NoCopy: data[2]&0x2 != 0, - SkipDecodeRecovery: data[2]&0x4 != 0, - DecodeStreamsAsDatagrams: data[2]&0x8 != 0, - } - p := gopacket.NewPacket(data[3:], gopacket.LayerType(startLayer), fuzzOpts) - for _, l := range p.Layers() { - gopacket.LayerString(l) - } - if p.ErrorLayer() != nil { - return 0 - } - return 1 -} diff --git a/vendor/github.com/google/gopacket/layers/gen_linted.sh b/vendor/github.com/google/gopacket/layers/gen_linted.sh deleted file mode 100644 index 75c701f4d5..0000000000 --- a/vendor/github.com/google/gopacket/layers/gen_linted.sh +++ /dev/null @@ -1,3 +0,0 @@ -#!/bin/bash - -for i in *.go; do golint $i | grep -q . || echo $i; done > .linted diff --git a/vendor/github.com/google/gopacket/layers/geneve.go b/vendor/github.com/google/gopacket/layers/geneve.go deleted file mode 100644 index e9a1428809..0000000000 --- a/vendor/github.com/google/gopacket/layers/geneve.go +++ /dev/null @@ -1,121 +0,0 @@ -// Copyright 2016 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - - "github.com/google/gopacket" -) - -// Geneve is specifed here https://tools.ietf.org/html/draft-ietf-nvo3-geneve-03 -// Geneve Header: -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// |Ver| Opt Len |O|C| Rsvd. | Protocol Type | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Virtual Network Identifier (VNI) | Reserved | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Variable Length Options | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -type Geneve struct { - BaseLayer - Version uint8 // 2 bits - OptionsLength uint8 // 6 bits - OAMPacket bool // 1 bits - CriticalOption bool // 1 bits - Protocol EthernetType // 16 bits - VNI uint32 // 24bits - Options []*GeneveOption -} - -// Geneve Tunnel Options -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Option Class | Type |R|R|R| Length | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Variable Option Data | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -type GeneveOption struct { - Class uint16 // 16 bits - Type uint8 // 8 bits - Flags uint8 // 3 bits - Length uint8 // 5 bits - Data []byte -} - -// LayerType returns LayerTypeGeneve -func (gn *Geneve) LayerType() gopacket.LayerType { return LayerTypeGeneve } - -func decodeGeneveOption(data []byte, gn *Geneve, df gopacket.DecodeFeedback) (*GeneveOption, uint8, error) { - if len(data) < 3 { - df.SetTruncated() - return nil, 0, errors.New("geneve option too small") - } - opt := &GeneveOption{} - - opt.Class = binary.BigEndian.Uint16(data[0:2]) - opt.Type = data[2] - opt.Flags = data[3] >> 4 - opt.Length = (data[3]&0xf)*4 + 4 - - if len(data) < int(opt.Length) { - df.SetTruncated() - return nil, 0, errors.New("geneve option too small") - } - opt.Data = make([]byte, opt.Length-4) - copy(opt.Data, data[4:opt.Length]) - - return opt, opt.Length, nil -} - -func (gn *Geneve) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 7 { - df.SetTruncated() - return errors.New("geneve packet too short") - } - - gn.Version = data[0] >> 7 - gn.OptionsLength = (data[0] & 0x3f) * 4 - - gn.OAMPacket = data[1]&0x80 > 0 - gn.CriticalOption = data[1]&0x40 > 0 - gn.Protocol = EthernetType(binary.BigEndian.Uint16(data[2:4])) - - var buf [4]byte - copy(buf[1:], data[4:7]) - gn.VNI = binary.BigEndian.Uint32(buf[:]) - - offset, length := uint8(8), int32(gn.OptionsLength) - if len(data) < int(length+7) { - df.SetTruncated() - return errors.New("geneve packet too short") - } - - for length > 0 { - opt, len, err := decodeGeneveOption(data[offset:], gn, df) - if err != nil { - return err - } - gn.Options = append(gn.Options, opt) - - length -= int32(len) - offset += len - } - - gn.BaseLayer = BaseLayer{data[:offset], data[offset:]} - - return nil -} - -func (gn *Geneve) NextLayerType() gopacket.LayerType { - return gn.Protocol.LayerType() -} - -func decodeGeneve(data []byte, p gopacket.PacketBuilder) error { - gn := &Geneve{} - return decodingLayerDecoder(gn, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/gre.go b/vendor/github.com/google/gopacket/layers/gre.go deleted file mode 100644 index 9c5e7d246f..0000000000 --- a/vendor/github.com/google/gopacket/layers/gre.go +++ /dev/null @@ -1,200 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - - "github.com/google/gopacket" -) - -// GRE is a Generic Routing Encapsulation header. -type GRE struct { - BaseLayer - ChecksumPresent, RoutingPresent, KeyPresent, SeqPresent, StrictSourceRoute, AckPresent bool - RecursionControl, Flags, Version uint8 - Protocol EthernetType - Checksum, Offset uint16 - Key, Seq, Ack uint32 - *GRERouting -} - -// GRERouting is GRE routing information, present if the RoutingPresent flag is -// set. -type GRERouting struct { - AddressFamily uint16 - SREOffset, SRELength uint8 - RoutingInformation []byte - Next *GRERouting -} - -// LayerType returns gopacket.LayerTypeGRE. -func (g *GRE) LayerType() gopacket.LayerType { return LayerTypeGRE } - -// DecodeFromBytes decodes the given bytes into this layer. -func (g *GRE) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - g.ChecksumPresent = data[0]&0x80 != 0 - g.RoutingPresent = data[0]&0x40 != 0 - g.KeyPresent = data[0]&0x20 != 0 - g.SeqPresent = data[0]&0x10 != 0 - g.StrictSourceRoute = data[0]&0x08 != 0 - g.AckPresent = data[1]&0x80 != 0 - g.RecursionControl = data[0] & 0x7 - g.Flags = data[1] >> 3 - g.Version = data[1] & 0x7 - g.Protocol = EthernetType(binary.BigEndian.Uint16(data[2:4])) - offset := 4 - if g.ChecksumPresent || g.RoutingPresent { - g.Checksum = binary.BigEndian.Uint16(data[offset : offset+2]) - g.Offset = binary.BigEndian.Uint16(data[offset+2 : offset+4]) - offset += 4 - } - if g.KeyPresent { - g.Key = binary.BigEndian.Uint32(data[offset : offset+4]) - offset += 4 - } - if g.SeqPresent { - g.Seq = binary.BigEndian.Uint32(data[offset : offset+4]) - offset += 4 - } - if g.RoutingPresent { - tail := &g.GRERouting - for { - sre := &GRERouting{ - AddressFamily: binary.BigEndian.Uint16(data[offset : offset+2]), - SREOffset: data[offset+2], - SRELength: data[offset+3], - } - sre.RoutingInformation = data[offset+4 : offset+4+int(sre.SRELength)] - offset += 4 + int(sre.SRELength) - if sre.AddressFamily == 0 && sre.SRELength == 0 { - break - } - (*tail) = sre - tail = &sre.Next - } - } - if g.AckPresent { - g.Ack = binary.BigEndian.Uint32(data[offset : offset+4]) - offset += 4 - } - g.BaseLayer = BaseLayer{data[:offset], data[offset:]} - return nil -} - -// SerializeTo writes the serialized form of this layer into the SerializationBuffer, -// implementing gopacket.SerializableLayer. See the docs for gopacket.SerializableLayer for more info. -func (g *GRE) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - size := 4 - if g.ChecksumPresent || g.RoutingPresent { - size += 4 - } - if g.KeyPresent { - size += 4 - } - if g.SeqPresent { - size += 4 - } - if g.RoutingPresent { - r := g.GRERouting - for r != nil { - size += 4 + int(r.SRELength) - r = r.Next - } - size += 4 - } - if g.AckPresent { - size += 4 - } - buf, err := b.PrependBytes(size) - if err != nil { - return err - } - // Reset any potentially dirty memory in the first 2 bytes, as these use OR to set flags. - buf[0] = 0 - buf[1] = 0 - if g.ChecksumPresent { - buf[0] |= 0x80 - } - if g.RoutingPresent { - buf[0] |= 0x40 - } - if g.KeyPresent { - buf[0] |= 0x20 - } - if g.SeqPresent { - buf[0] |= 0x10 - } - if g.StrictSourceRoute { - buf[0] |= 0x08 - } - if g.AckPresent { - buf[1] |= 0x80 - } - buf[0] |= g.RecursionControl - buf[1] |= g.Flags << 3 - buf[1] |= g.Version - binary.BigEndian.PutUint16(buf[2:4], uint16(g.Protocol)) - offset := 4 - if g.ChecksumPresent || g.RoutingPresent { - // Don't write the checksum value yet, as we may need to compute it, - // which requires the entire header be complete. - // Instead we zeroize the memory in case it is dirty. - buf[offset] = 0 - buf[offset+1] = 0 - binary.BigEndian.PutUint16(buf[offset+2:offset+4], g.Offset) - offset += 4 - } - if g.KeyPresent { - binary.BigEndian.PutUint32(buf[offset:offset+4], g.Key) - offset += 4 - } - if g.SeqPresent { - binary.BigEndian.PutUint32(buf[offset:offset+4], g.Seq) - offset += 4 - } - if g.RoutingPresent { - sre := g.GRERouting - for sre != nil { - binary.BigEndian.PutUint16(buf[offset:offset+2], sre.AddressFamily) - buf[offset+2] = sre.SREOffset - buf[offset+3] = sre.SRELength - copy(buf[offset+4:offset+4+int(sre.SRELength)], sre.RoutingInformation) - offset += 4 + int(sre.SRELength) - sre = sre.Next - } - // Terminate routing field with a "NULL" SRE. - binary.BigEndian.PutUint32(buf[offset:offset+4], 0) - } - if g.AckPresent { - binary.BigEndian.PutUint32(buf[offset:offset+4], g.Ack) - offset += 4 - } - if g.ChecksumPresent { - if opts.ComputeChecksums { - g.Checksum = tcpipChecksum(b.Bytes(), 0) - } - - binary.BigEndian.PutUint16(buf[4:6], g.Checksum) - } - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (g *GRE) CanDecode() gopacket.LayerClass { - return LayerTypeGRE -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (g *GRE) NextLayerType() gopacket.LayerType { - return g.Protocol.LayerType() -} - -func decodeGRE(data []byte, p gopacket.PacketBuilder) error { - g := &GRE{} - return decodingLayerDecoder(g, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/gtp.go b/vendor/github.com/google/gopacket/layers/gtp.go deleted file mode 100644 index fe3054a6d0..0000000000 --- a/vendor/github.com/google/gopacket/layers/gtp.go +++ /dev/null @@ -1,184 +0,0 @@ -// Copyright 2017 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. -// - -package layers - -import ( - "encoding/binary" - "fmt" - "github.com/google/gopacket" -) - -const gtpMinimumSizeInBytes int = 8 - -// GTPExtensionHeader is used to carry extra data and enable future extensions of the GTP without the need to use another version number. -type GTPExtensionHeader struct { - Type uint8 - Content []byte -} - -// GTPv1U protocol is used to exchange user data over GTP tunnels across the Sx interfaces. -// Defined in https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1595 -type GTPv1U struct { - BaseLayer - Version uint8 - ProtocolType uint8 - Reserved uint8 - ExtensionHeaderFlag bool - SequenceNumberFlag bool - NPDUFlag bool - MessageType uint8 - MessageLength uint16 - TEID uint32 - SequenceNumber uint16 - NPDU uint8 - GTPExtensionHeaders []GTPExtensionHeader -} - -// LayerType returns LayerTypeGTPV1U -func (g *GTPv1U) LayerType() gopacket.LayerType { return LayerTypeGTPv1U } - -// DecodeFromBytes analyses a byte slice and attempts to decode it as a GTPv1U packet -func (g *GTPv1U) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - hLen := gtpMinimumSizeInBytes - dLen := len(data) - if dLen < hLen { - return fmt.Errorf("GTP packet too small: %d bytes", dLen) - } - g.Version = (data[0] >> 5) & 0x07 - g.ProtocolType = (data[0] >> 4) & 0x01 - g.Reserved = (data[0] >> 3) & 0x01 - g.SequenceNumberFlag = ((data[0] >> 1) & 0x01) == 1 - g.NPDUFlag = (data[0] & 0x01) == 1 - g.ExtensionHeaderFlag = ((data[0] >> 2) & 0x01) == 1 - g.MessageType = data[1] - g.MessageLength = binary.BigEndian.Uint16(data[2:4]) - pLen := 8 + g.MessageLength - if uint16(dLen) < pLen { - return fmt.Errorf("GTP packet too small: %d bytes", dLen) - } - // Field used to multiplex different connections in the same GTP tunnel. - g.TEID = binary.BigEndian.Uint32(data[4:8]) - cIndex := uint16(hLen) - if g.SequenceNumberFlag || g.NPDUFlag || g.ExtensionHeaderFlag { - hLen += 4 - cIndex += 4 - if dLen < hLen { - return fmt.Errorf("GTP packet too small: %d bytes", dLen) - } - if g.SequenceNumberFlag { - g.SequenceNumber = binary.BigEndian.Uint16(data[8:10]) - } - if g.NPDUFlag { - g.NPDU = data[10] - } - if g.ExtensionHeaderFlag { - extensionFlag := true - for extensionFlag { - extensionType := uint8(data[cIndex-1]) - extensionLength := uint(data[cIndex]) - if extensionLength == 0 { - return fmt.Errorf("GTP packet with invalid extension header") - } - // extensionLength is in 4-octet units - lIndex := cIndex + (uint16(extensionLength) * 4) - if uint16(dLen) < lIndex { - fmt.Println(dLen, lIndex) - return fmt.Errorf("GTP packet with small extension header: %d bytes", dLen) - } - content := data[cIndex+1 : lIndex-1] - eh := GTPExtensionHeader{Type: extensionType, Content: content} - g.GTPExtensionHeaders = append(g.GTPExtensionHeaders, eh) - cIndex = lIndex - // Check if coming bytes are from an extension header - extensionFlag = data[cIndex-1] != 0 - - } - } - } - g.BaseLayer = BaseLayer{Contents: data[:cIndex], Payload: data[cIndex:]} - return nil - -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (g *GTPv1U) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - data, err := b.PrependBytes(gtpMinimumSizeInBytes) - if err != nil { - return err - } - data[0] |= (g.Version << 5) - data[0] |= (1 << 4) - if len(g.GTPExtensionHeaders) > 0 { - data[0] |= 0x04 - g.ExtensionHeaderFlag = true - } - if g.SequenceNumberFlag { - data[0] |= 0x02 - } - if g.NPDUFlag { - data[0] |= 0x01 - } - data[1] = g.MessageType - binary.BigEndian.PutUint16(data[2:4], g.MessageLength) - binary.BigEndian.PutUint32(data[4:8], g.TEID) - if g.ExtensionHeaderFlag || g.SequenceNumberFlag || g.NPDUFlag { - data, err := b.AppendBytes(4) - if err != nil { - return err - } - binary.BigEndian.PutUint16(data[:2], g.SequenceNumber) - data[2] = g.NPDU - for _, eh := range g.GTPExtensionHeaders { - data[len(data)-1] = eh.Type - lContent := len(eh.Content) - // extensionLength is in 4-octet units - extensionLength := (lContent + 2) / 4 - // Get two extra byte for the next extension header type and length - data, err = b.AppendBytes(lContent + 2) - if err != nil { - return err - } - data[0] = byte(extensionLength) - copy(data[1:lContent+1], eh.Content) - } - } - return nil - -} - -// CanDecode returns a set of layers that GTP objects can decode. -func (g *GTPv1U) CanDecode() gopacket.LayerClass { - return LayerTypeGTPv1U -} - -// NextLayerType specifies the next layer that GoPacket should attempt to -func (g *GTPv1U) NextLayerType() gopacket.LayerType { - if len(g.LayerPayload()) == 0 { - return gopacket.LayerTypeZero - } - version := uint8(g.LayerPayload()[0]) >> 4 - if version == 4 { - return LayerTypeIPv4 - } else if version == 6 { - return LayerTypeIPv6 - } else { - return LayerTypePPP - } -} - -func decodeGTPv1u(data []byte, p gopacket.PacketBuilder) error { - gtp := >Pv1U{} - err := gtp.DecodeFromBytes(data, p) - if err != nil { - return err - } - p.AddLayer(gtp) - return p.NextDecoder(gtp.NextLayerType()) -} diff --git a/vendor/github.com/google/gopacket/layers/iana_ports.go b/vendor/github.com/google/gopacket/layers/iana_ports.go deleted file mode 100644 index ddcf3ecdb7..0000000000 --- a/vendor/github.com/google/gopacket/layers/iana_ports.go +++ /dev/null @@ -1,11351 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. - -package layers - -// Created by gen.go, don't edit manually -// Generated at 2017-10-23 09:57:28.214859163 -0600 MDT m=+1.011679290 -// Fetched from "http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xml" - -// TCPPortNames contains the port names for all TCP ports. -var TCPPortNames = tcpPortNames - -// UDPPortNames contains the port names for all UDP ports. -var UDPPortNames = udpPortNames - -// SCTPPortNames contains the port names for all SCTP ports. -var SCTPPortNames = sctpPortNames - -var tcpPortNames = map[TCPPort]string{ - 1: "tcpmux", - 2: "compressnet", - 3: "compressnet", - 5: "rje", - 7: "echo", - 9: "discard", - 11: "systat", - 13: "daytime", - 17: "qotd", - 18: "msp", - 19: "chargen", - 20: "ftp-data", - 21: "ftp", - 22: "ssh", - 23: "telnet", - 25: "smtp", - 27: "nsw-fe", - 29: "msg-icp", - 31: "msg-auth", - 33: "dsp", - 37: "time", - 38: "rap", - 39: "rlp", - 41: "graphics", - 42: "name", - 43: "nicname", - 44: "mpm-flags", - 45: "mpm", - 46: "mpm-snd", - 48: "auditd", - 49: "tacacs", - 50: "re-mail-ck", - 52: "xns-time", - 53: "domain", - 54: "xns-ch", - 55: "isi-gl", - 56: "xns-auth", - 58: "xns-mail", - 62: "acas", - 63: "whoispp", - 64: "covia", - 65: "tacacs-ds", - 66: "sql-net", - 67: "bootps", - 68: "bootpc", - 69: "tftp", - 70: "gopher", - 71: "netrjs-1", - 72: "netrjs-2", - 73: "netrjs-3", - 74: "netrjs-4", - 76: "deos", - 78: "vettcp", - 79: "finger", - 80: "http", - 82: "xfer", - 83: "mit-ml-dev", - 84: "ctf", - 85: "mit-ml-dev", - 86: "mfcobol", - 88: "kerberos", - 89: "su-mit-tg", - 90: "dnsix", - 91: "mit-dov", - 92: "npp", - 93: "dcp", - 94: "objcall", - 95: "supdup", - 96: "dixie", - 97: "swift-rvf", - 98: "tacnews", - 99: "metagram", - 101: "hostname", - 102: "iso-tsap", - 103: "gppitnp", - 104: "acr-nema", - 105: "cso", - 106: "3com-tsmux", - 107: "rtelnet", - 108: "snagas", - 109: "pop2", - 110: "pop3", - 111: "sunrpc", - 112: "mcidas", - 113: "ident", - 115: "sftp", - 116: "ansanotify", - 117: "uucp-path", - 118: "sqlserv", - 119: "nntp", - 120: "cfdptkt", - 121: "erpc", - 122: "smakynet", - 123: "ntp", - 124: "ansatrader", - 125: "locus-map", - 126: "nxedit", - 127: "locus-con", - 128: "gss-xlicen", - 129: "pwdgen", - 130: "cisco-fna", - 131: "cisco-tna", - 132: "cisco-sys", - 133: "statsrv", - 134: "ingres-net", - 135: "epmap", - 136: "profile", - 137: "netbios-ns", - 138: "netbios-dgm", - 139: "netbios-ssn", - 140: "emfis-data", - 141: "emfis-cntl", - 142: "bl-idm", - 143: "imap", - 144: "uma", - 145: "uaac", - 146: "iso-tp0", - 147: "iso-ip", - 148: "jargon", - 149: "aed-512", - 150: "sql-net", - 151: "hems", - 152: "bftp", - 153: "sgmp", - 154: "netsc-prod", - 155: "netsc-dev", - 156: "sqlsrv", - 157: "knet-cmp", - 158: "pcmail-srv", - 159: "nss-routing", - 160: "sgmp-traps", - 161: "snmp", - 162: "snmptrap", - 163: "cmip-man", - 164: "cmip-agent", - 165: "xns-courier", - 166: "s-net", - 167: "namp", - 168: "rsvd", - 169: "send", - 170: "print-srv", - 171: "multiplex", - 172: "cl-1", - 173: "xyplex-mux", - 174: "mailq", - 175: "vmnet", - 176: "genrad-mux", - 177: "xdmcp", - 178: "nextstep", - 179: "bgp", - 180: "ris", - 181: "unify", - 182: "audit", - 183: "ocbinder", - 184: "ocserver", - 185: "remote-kis", - 186: "kis", - 187: "aci", - 188: "mumps", - 189: "qft", - 190: "gacp", - 191: "prospero", - 192: "osu-nms", - 193: "srmp", - 194: "irc", - 195: "dn6-nlm-aud", - 196: "dn6-smm-red", - 197: "dls", - 198: "dls-mon", - 199: "smux", - 200: "src", - 201: "at-rtmp", - 202: "at-nbp", - 203: "at-3", - 204: "at-echo", - 205: "at-5", - 206: "at-zis", - 207: "at-7", - 208: "at-8", - 209: "qmtp", - 210: "z39-50", - 211: "914c-g", - 212: "anet", - 213: "ipx", - 214: "vmpwscs", - 215: "softpc", - 216: "CAIlic", - 217: "dbase", - 218: "mpp", - 219: "uarps", - 220: "imap3", - 221: "fln-spx", - 222: "rsh-spx", - 223: "cdc", - 224: "masqdialer", - 242: "direct", - 243: "sur-meas", - 244: "inbusiness", - 245: "link", - 246: "dsp3270", - 247: "subntbcst-tftp", - 248: "bhfhs", - 256: "rap", - 257: "set", - 259: "esro-gen", - 260: "openport", - 261: "nsiiops", - 262: "arcisdms", - 263: "hdap", - 264: "bgmp", - 265: "x-bone-ctl", - 266: "sst", - 267: "td-service", - 268: "td-replica", - 269: "manet", - 271: "pt-tls", - 280: "http-mgmt", - 281: "personal-link", - 282: "cableport-ax", - 283: "rescap", - 284: "corerjd", - 286: "fxp", - 287: "k-block", - 308: "novastorbakcup", - 309: "entrusttime", - 310: "bhmds", - 311: "asip-webadmin", - 312: "vslmp", - 313: "magenta-logic", - 314: "opalis-robot", - 315: "dpsi", - 316: "decauth", - 317: "zannet", - 318: "pkix-timestamp", - 319: "ptp-event", - 320: "ptp-general", - 321: "pip", - 322: "rtsps", - 323: "rpki-rtr", - 324: "rpki-rtr-tls", - 333: "texar", - 344: "pdap", - 345: "pawserv", - 346: "zserv", - 347: "fatserv", - 348: "csi-sgwp", - 349: "mftp", - 350: "matip-type-a", - 351: "matip-type-b", - 352: "dtag-ste-sb", - 353: "ndsauth", - 354: "bh611", - 355: "datex-asn", - 356: "cloanto-net-1", - 357: "bhevent", - 358: "shrinkwrap", - 359: "nsrmp", - 360: "scoi2odialog", - 361: "semantix", - 362: "srssend", - 363: "rsvp-tunnel", - 364: "aurora-cmgr", - 365: "dtk", - 366: "odmr", - 367: "mortgageware", - 368: "qbikgdp", - 369: "rpc2portmap", - 370: "codaauth2", - 371: "clearcase", - 372: "ulistproc", - 373: "legent-1", - 374: "legent-2", - 375: "hassle", - 376: "nip", - 377: "tnETOS", - 378: "dsETOS", - 379: "is99c", - 380: "is99s", - 381: "hp-collector", - 382: "hp-managed-node", - 383: "hp-alarm-mgr", - 384: "arns", - 385: "ibm-app", - 386: "asa", - 387: "aurp", - 388: "unidata-ldm", - 389: "ldap", - 390: "uis", - 391: "synotics-relay", - 392: "synotics-broker", - 393: "meta5", - 394: "embl-ndt", - 395: "netcp", - 396: "netware-ip", - 397: "mptn", - 398: "kryptolan", - 399: "iso-tsap-c2", - 400: "osb-sd", - 401: "ups", - 402: "genie", - 403: "decap", - 404: "nced", - 405: "ncld", - 406: "imsp", - 407: "timbuktu", - 408: "prm-sm", - 409: "prm-nm", - 410: "decladebug", - 411: "rmt", - 412: "synoptics-trap", - 413: "smsp", - 414: "infoseek", - 415: "bnet", - 416: "silverplatter", - 417: "onmux", - 418: "hyper-g", - 419: "ariel1", - 420: "smpte", - 421: "ariel2", - 422: "ariel3", - 423: "opc-job-start", - 424: "opc-job-track", - 425: "icad-el", - 426: "smartsdp", - 427: "svrloc", - 428: "ocs-cmu", - 429: "ocs-amu", - 430: "utmpsd", - 431: "utmpcd", - 432: "iasd", - 433: "nnsp", - 434: "mobileip-agent", - 435: "mobilip-mn", - 436: "dna-cml", - 437: "comscm", - 438: "dsfgw", - 439: "dasp", - 440: "sgcp", - 441: "decvms-sysmgt", - 442: "cvc-hostd", - 443: "https", - 444: "snpp", - 445: "microsoft-ds", - 446: "ddm-rdb", - 447: "ddm-dfm", - 448: "ddm-ssl", - 449: "as-servermap", - 450: "tserver", - 451: "sfs-smp-net", - 452: "sfs-config", - 453: "creativeserver", - 454: "contentserver", - 455: "creativepartnr", - 456: "macon-tcp", - 457: "scohelp", - 458: "appleqtc", - 459: "ampr-rcmd", - 460: "skronk", - 461: "datasurfsrv", - 462: "datasurfsrvsec", - 463: "alpes", - 464: "kpasswd", - 465: "urd", - 466: "digital-vrc", - 467: "mylex-mapd", - 468: "photuris", - 469: "rcp", - 470: "scx-proxy", - 471: "mondex", - 472: "ljk-login", - 473: "hybrid-pop", - 474: "tn-tl-w1", - 475: "tcpnethaspsrv", - 476: "tn-tl-fd1", - 477: "ss7ns", - 478: "spsc", - 479: "iafserver", - 480: "iafdbase", - 481: "ph", - 482: "bgs-nsi", - 483: "ulpnet", - 484: "integra-sme", - 485: "powerburst", - 486: "avian", - 487: "saft", - 488: "gss-http", - 489: "nest-protocol", - 490: "micom-pfs", - 491: "go-login", - 492: "ticf-1", - 493: "ticf-2", - 494: "pov-ray", - 495: "intecourier", - 496: "pim-rp-disc", - 497: "retrospect", - 498: "siam", - 499: "iso-ill", - 500: "isakmp", - 501: "stmf", - 502: "mbap", - 503: "intrinsa", - 504: "citadel", - 505: "mailbox-lm", - 506: "ohimsrv", - 507: "crs", - 508: "xvttp", - 509: "snare", - 510: "fcp", - 511: "passgo", - 512: "exec", - 513: "login", - 514: "shell", - 515: "printer", - 516: "videotex", - 517: "talk", - 518: "ntalk", - 519: "utime", - 520: "efs", - 521: "ripng", - 522: "ulp", - 523: "ibm-db2", - 524: "ncp", - 525: "timed", - 526: "tempo", - 527: "stx", - 528: "custix", - 529: "irc-serv", - 530: "courier", - 531: "conference", - 532: "netnews", - 533: "netwall", - 534: "windream", - 535: "iiop", - 536: "opalis-rdv", - 537: "nmsp", - 538: "gdomap", - 539: "apertus-ldp", - 540: "uucp", - 541: "uucp-rlogin", - 542: "commerce", - 543: "klogin", - 544: "kshell", - 545: "appleqtcsrvr", - 546: "dhcpv6-client", - 547: "dhcpv6-server", - 548: "afpovertcp", - 549: "idfp", - 550: "new-rwho", - 551: "cybercash", - 552: "devshr-nts", - 553: "pirp", - 554: "rtsp", - 555: "dsf", - 556: "remotefs", - 557: "openvms-sysipc", - 558: "sdnskmp", - 559: "teedtap", - 560: "rmonitor", - 561: "monitor", - 562: "chshell", - 563: "nntps", - 564: "9pfs", - 565: "whoami", - 566: "streettalk", - 567: "banyan-rpc", - 568: "ms-shuttle", - 569: "ms-rome", - 570: "meter", - 571: "meter", - 572: "sonar", - 573: "banyan-vip", - 574: "ftp-agent", - 575: "vemmi", - 576: "ipcd", - 577: "vnas", - 578: "ipdd", - 579: "decbsrv", - 580: "sntp-heartbeat", - 581: "bdp", - 582: "scc-security", - 583: "philips-vc", - 584: "keyserver", - 586: "password-chg", - 587: "submission", - 588: "cal", - 589: "eyelink", - 590: "tns-cml", - 591: "http-alt", - 592: "eudora-set", - 593: "http-rpc-epmap", - 594: "tpip", - 595: "cab-protocol", - 596: "smsd", - 597: "ptcnameservice", - 598: "sco-websrvrmg3", - 599: "acp", - 600: "ipcserver", - 601: "syslog-conn", - 602: "xmlrpc-beep", - 603: "idxp", - 604: "tunnel", - 605: "soap-beep", - 606: "urm", - 607: "nqs", - 608: "sift-uft", - 609: "npmp-trap", - 610: "npmp-local", - 611: "npmp-gui", - 612: "hmmp-ind", - 613: "hmmp-op", - 614: "sshell", - 615: "sco-inetmgr", - 616: "sco-sysmgr", - 617: "sco-dtmgr", - 618: "dei-icda", - 619: "compaq-evm", - 620: "sco-websrvrmgr", - 621: "escp-ip", - 622: "collaborator", - 623: "oob-ws-http", - 624: "cryptoadmin", - 625: "dec-dlm", - 626: "asia", - 627: "passgo-tivoli", - 628: "qmqp", - 629: "3com-amp3", - 630: "rda", - 631: "ipp", - 632: "bmpp", - 633: "servstat", - 634: "ginad", - 635: "rlzdbase", - 636: "ldaps", - 637: "lanserver", - 638: "mcns-sec", - 639: "msdp", - 640: "entrust-sps", - 641: "repcmd", - 642: "esro-emsdp", - 643: "sanity", - 644: "dwr", - 645: "pssc", - 646: "ldp", - 647: "dhcp-failover", - 648: "rrp", - 649: "cadview-3d", - 650: "obex", - 651: "ieee-mms", - 652: "hello-port", - 653: "repscmd", - 654: "aodv", - 655: "tinc", - 656: "spmp", - 657: "rmc", - 658: "tenfold", - 660: "mac-srvr-admin", - 661: "hap", - 662: "pftp", - 663: "purenoise", - 664: "oob-ws-https", - 665: "sun-dr", - 666: "mdqs", - 667: "disclose", - 668: "mecomm", - 669: "meregister", - 670: "vacdsm-sws", - 671: "vacdsm-app", - 672: "vpps-qua", - 673: "cimplex", - 674: "acap", - 675: "dctp", - 676: "vpps-via", - 677: "vpp", - 678: "ggf-ncp", - 679: "mrm", - 680: "entrust-aaas", - 681: "entrust-aams", - 682: "xfr", - 683: "corba-iiop", - 684: "corba-iiop-ssl", - 685: "mdc-portmapper", - 686: "hcp-wismar", - 687: "asipregistry", - 688: "realm-rusd", - 689: "nmap", - 690: "vatp", - 691: "msexch-routing", - 692: "hyperwave-isp", - 693: "connendp", - 694: "ha-cluster", - 695: "ieee-mms-ssl", - 696: "rushd", - 697: "uuidgen", - 698: "olsr", - 699: "accessnetwork", - 700: "epp", - 701: "lmp", - 702: "iris-beep", - 704: "elcsd", - 705: "agentx", - 706: "silc", - 707: "borland-dsj", - 709: "entrust-kmsh", - 710: "entrust-ash", - 711: "cisco-tdp", - 712: "tbrpf", - 713: "iris-xpc", - 714: "iris-xpcs", - 715: "iris-lwz", - 729: "netviewdm1", - 730: "netviewdm2", - 731: "netviewdm3", - 741: "netgw", - 742: "netrcs", - 744: "flexlm", - 747: "fujitsu-dev", - 748: "ris-cm", - 749: "kerberos-adm", - 750: "rfile", - 751: "pump", - 752: "qrh", - 753: "rrh", - 754: "tell", - 758: "nlogin", - 759: "con", - 760: "ns", - 761: "rxe", - 762: "quotad", - 763: "cycleserv", - 764: "omserv", - 765: "webster", - 767: "phonebook", - 769: "vid", - 770: "cadlock", - 771: "rtip", - 772: "cycleserv2", - 773: "submit", - 774: "rpasswd", - 775: "entomb", - 776: "wpages", - 777: "multiling-http", - 780: "wpgs", - 800: "mdbs-daemon", - 801: "device", - 802: "mbap-s", - 810: "fcp-udp", - 828: "itm-mcell-s", - 829: "pkix-3-ca-ra", - 830: "netconf-ssh", - 831: "netconf-beep", - 832: "netconfsoaphttp", - 833: "netconfsoapbeep", - 847: "dhcp-failover2", - 848: "gdoi", - 853: "domain-s", - 854: "dlep", - 860: "iscsi", - 861: "owamp-control", - 862: "twamp-control", - 873: "rsync", - 886: "iclcnet-locate", - 887: "iclcnet-svinfo", - 888: "accessbuilder", - 900: "omginitialrefs", - 901: "smpnameres", - 902: "ideafarm-door", - 903: "ideafarm-panic", - 910: "kink", - 911: "xact-backup", - 912: "apex-mesh", - 913: "apex-edge", - 953: "rndc", - 989: "ftps-data", - 990: "ftps", - 991: "nas", - 992: "telnets", - 993: "imaps", - 995: "pop3s", - 996: "vsinet", - 997: "maitrd", - 998: "busboy", - 999: "garcon", - 1000: "cadlock2", - 1001: "webpush", - 1010: "surf", - 1021: "exp1", - 1022: "exp2", - 1025: "blackjack", - 1026: "cap", - 1029: "solid-mux", - 1033: "netinfo-local", - 1034: "activesync", - 1035: "mxxrlogin", - 1036: "nsstp", - 1037: "ams", - 1038: "mtqp", - 1039: "sbl", - 1040: "netarx", - 1041: "danf-ak2", - 1042: "afrog", - 1043: "boinc-client", - 1044: "dcutility", - 1045: "fpitp", - 1046: "wfremotertm", - 1047: "neod1", - 1048: "neod2", - 1049: "td-postman", - 1050: "cma", - 1051: "optima-vnet", - 1052: "ddt", - 1053: "remote-as", - 1054: "brvread", - 1055: "ansyslmd", - 1056: "vfo", - 1057: "startron", - 1058: "nim", - 1059: "nimreg", - 1060: "polestar", - 1061: "kiosk", - 1062: "veracity", - 1063: "kyoceranetdev", - 1064: "jstel", - 1065: "syscomlan", - 1066: "fpo-fns", - 1067: "instl-boots", - 1068: "instl-bootc", - 1069: "cognex-insight", - 1070: "gmrupdateserv", - 1071: "bsquare-voip", - 1072: "cardax", - 1073: "bridgecontrol", - 1074: "warmspotMgmt", - 1075: "rdrmshc", - 1076: "dab-sti-c", - 1077: "imgames", - 1078: "avocent-proxy", - 1079: "asprovatalk", - 1080: "socks", - 1081: "pvuniwien", - 1082: "amt-esd-prot", - 1083: "ansoft-lm-1", - 1084: "ansoft-lm-2", - 1085: "webobjects", - 1086: "cplscrambler-lg", - 1087: "cplscrambler-in", - 1088: "cplscrambler-al", - 1089: "ff-annunc", - 1090: "ff-fms", - 1091: "ff-sm", - 1092: "obrpd", - 1093: "proofd", - 1094: "rootd", - 1095: "nicelink", - 1096: "cnrprotocol", - 1097: "sunclustermgr", - 1098: "rmiactivation", - 1099: "rmiregistry", - 1100: "mctp", - 1101: "pt2-discover", - 1102: "adobeserver-1", - 1103: "adobeserver-2", - 1104: "xrl", - 1105: "ftranhc", - 1106: "isoipsigport-1", - 1107: "isoipsigport-2", - 1108: "ratio-adp", - 1110: "webadmstart", - 1111: "lmsocialserver", - 1112: "icp", - 1113: "ltp-deepspace", - 1114: "mini-sql", - 1115: "ardus-trns", - 1116: "ardus-cntl", - 1117: "ardus-mtrns", - 1118: "sacred", - 1119: "bnetgame", - 1120: "bnetfile", - 1121: "rmpp", - 1122: "availant-mgr", - 1123: "murray", - 1124: "hpvmmcontrol", - 1125: "hpvmmagent", - 1126: "hpvmmdata", - 1127: "kwdb-commn", - 1128: "saphostctrl", - 1129: "saphostctrls", - 1130: "casp", - 1131: "caspssl", - 1132: "kvm-via-ip", - 1133: "dfn", - 1134: "aplx", - 1135: "omnivision", - 1136: "hhb-gateway", - 1137: "trim", - 1138: "encrypted-admin", - 1139: "evm", - 1140: "autonoc", - 1141: "mxomss", - 1142: "edtools", - 1143: "imyx", - 1144: "fuscript", - 1145: "x9-icue", - 1146: "audit-transfer", - 1147: "capioverlan", - 1148: "elfiq-repl", - 1149: "bvtsonar", - 1150: "blaze", - 1151: "unizensus", - 1152: "winpoplanmess", - 1153: "c1222-acse", - 1154: "resacommunity", - 1155: "nfa", - 1156: "iascontrol-oms", - 1157: "iascontrol", - 1158: "dbcontrol-oms", - 1159: "oracle-oms", - 1160: "olsv", - 1161: "health-polling", - 1162: "health-trap", - 1163: "sddp", - 1164: "qsm-proxy", - 1165: "qsm-gui", - 1166: "qsm-remote", - 1167: "cisco-ipsla", - 1168: "vchat", - 1169: "tripwire", - 1170: "atc-lm", - 1171: "atc-appserver", - 1172: "dnap", - 1173: "d-cinema-rrp", - 1174: "fnet-remote-ui", - 1175: "dossier", - 1176: "indigo-server", - 1177: "dkmessenger", - 1178: "sgi-storman", - 1179: "b2n", - 1180: "mc-client", - 1181: "3comnetman", - 1182: "accelenet", - 1183: "llsurfup-http", - 1184: "llsurfup-https", - 1185: "catchpole", - 1186: "mysql-cluster", - 1187: "alias", - 1188: "hp-webadmin", - 1189: "unet", - 1190: "commlinx-avl", - 1191: "gpfs", - 1192: "caids-sensor", - 1193: "fiveacross", - 1194: "openvpn", - 1195: "rsf-1", - 1196: "netmagic", - 1197: "carrius-rshell", - 1198: "cajo-discovery", - 1199: "dmidi", - 1200: "scol", - 1201: "nucleus-sand", - 1202: "caiccipc", - 1203: "ssslic-mgr", - 1204: "ssslog-mgr", - 1205: "accord-mgc", - 1206: "anthony-data", - 1207: "metasage", - 1208: "seagull-ais", - 1209: "ipcd3", - 1210: "eoss", - 1211: "groove-dpp", - 1212: "lupa", - 1213: "mpc-lifenet", - 1214: "kazaa", - 1215: "scanstat-1", - 1216: "etebac5", - 1217: "hpss-ndapi", - 1218: "aeroflight-ads", - 1219: "aeroflight-ret", - 1220: "qt-serveradmin", - 1221: "sweetware-apps", - 1222: "nerv", - 1223: "tgp", - 1224: "vpnz", - 1225: "slinkysearch", - 1226: "stgxfws", - 1227: "dns2go", - 1228: "florence", - 1229: "zented", - 1230: "periscope", - 1231: "menandmice-lpm", - 1232: "first-defense", - 1233: "univ-appserver", - 1234: "search-agent", - 1235: "mosaicsyssvc1", - 1236: "bvcontrol", - 1237: "tsdos390", - 1238: "hacl-qs", - 1239: "nmsd", - 1240: "instantia", - 1241: "nessus", - 1242: "nmasoverip", - 1243: "serialgateway", - 1244: "isbconference1", - 1245: "isbconference2", - 1246: "payrouter", - 1247: "visionpyramid", - 1248: "hermes", - 1249: "mesavistaco", - 1250: "swldy-sias", - 1251: "servergraph", - 1252: "bspne-pcc", - 1253: "q55-pcc", - 1254: "de-noc", - 1255: "de-cache-query", - 1256: "de-server", - 1257: "shockwave2", - 1258: "opennl", - 1259: "opennl-voice", - 1260: "ibm-ssd", - 1261: "mpshrsv", - 1262: "qnts-orb", - 1263: "dka", - 1264: "prat", - 1265: "dssiapi", - 1266: "dellpwrappks", - 1267: "epc", - 1268: "propel-msgsys", - 1269: "watilapp", - 1270: "opsmgr", - 1271: "excw", - 1272: "cspmlockmgr", - 1273: "emc-gateway", - 1274: "t1distproc", - 1275: "ivcollector", - 1277: "miva-mqs", - 1278: "dellwebadmin-1", - 1279: "dellwebadmin-2", - 1280: "pictrography", - 1281: "healthd", - 1282: "emperion", - 1283: "productinfo", - 1284: "iee-qfx", - 1285: "neoiface", - 1286: "netuitive", - 1287: "routematch", - 1288: "navbuddy", - 1289: "jwalkserver", - 1290: "winjaserver", - 1291: "seagulllms", - 1292: "dsdn", - 1293: "pkt-krb-ipsec", - 1294: "cmmdriver", - 1295: "ehtp", - 1296: "dproxy", - 1297: "sdproxy", - 1298: "lpcp", - 1299: "hp-sci", - 1300: "h323hostcallsc", - 1301: "ci3-software-1", - 1302: "ci3-software-2", - 1303: "sftsrv", - 1304: "boomerang", - 1305: "pe-mike", - 1306: "re-conn-proto", - 1307: "pacmand", - 1308: "odsi", - 1309: "jtag-server", - 1310: "husky", - 1311: "rxmon", - 1312: "sti-envision", - 1313: "bmc-patroldb", - 1314: "pdps", - 1315: "els", - 1316: "exbit-escp", - 1317: "vrts-ipcserver", - 1318: "krb5gatekeeper", - 1319: "amx-icsp", - 1320: "amx-axbnet", - 1321: "pip", - 1322: "novation", - 1323: "brcd", - 1324: "delta-mcp", - 1325: "dx-instrument", - 1326: "wimsic", - 1327: "ultrex", - 1328: "ewall", - 1329: "netdb-export", - 1330: "streetperfect", - 1331: "intersan", - 1332: "pcia-rxp-b", - 1333: "passwrd-policy", - 1334: "writesrv", - 1335: "digital-notary", - 1336: "ischat", - 1337: "menandmice-dns", - 1338: "wmc-log-svc", - 1339: "kjtsiteserver", - 1340: "naap", - 1341: "qubes", - 1342: "esbroker", - 1343: "re101", - 1344: "icap", - 1345: "vpjp", - 1346: "alta-ana-lm", - 1347: "bbn-mmc", - 1348: "bbn-mmx", - 1349: "sbook", - 1350: "editbench", - 1351: "equationbuilder", - 1352: "lotusnote", - 1353: "relief", - 1354: "XSIP-network", - 1355: "intuitive-edge", - 1356: "cuillamartin", - 1357: "pegboard", - 1358: "connlcli", - 1359: "ftsrv", - 1360: "mimer", - 1361: "linx", - 1362: "timeflies", - 1363: "ndm-requester", - 1364: "ndm-server", - 1365: "adapt-sna", - 1366: "netware-csp", - 1367: "dcs", - 1368: "screencast", - 1369: "gv-us", - 1370: "us-gv", - 1371: "fc-cli", - 1372: "fc-ser", - 1373: "chromagrafx", - 1374: "molly", - 1375: "bytex", - 1376: "ibm-pps", - 1377: "cichlid", - 1378: "elan", - 1379: "dbreporter", - 1380: "telesis-licman", - 1381: "apple-licman", - 1382: "udt-os", - 1383: "gwha", - 1384: "os-licman", - 1385: "atex-elmd", - 1386: "checksum", - 1387: "cadsi-lm", - 1388: "objective-dbc", - 1389: "iclpv-dm", - 1390: "iclpv-sc", - 1391: "iclpv-sas", - 1392: "iclpv-pm", - 1393: "iclpv-nls", - 1394: "iclpv-nlc", - 1395: "iclpv-wsm", - 1396: "dvl-activemail", - 1397: "audio-activmail", - 1398: "video-activmail", - 1399: "cadkey-licman", - 1400: "cadkey-tablet", - 1401: "goldleaf-licman", - 1402: "prm-sm-np", - 1403: "prm-nm-np", - 1404: "igi-lm", - 1405: "ibm-res", - 1406: "netlabs-lm", - 1407: "tibet-server", - 1408: "sophia-lm", - 1409: "here-lm", - 1410: "hiq", - 1411: "af", - 1412: "innosys", - 1413: "innosys-acl", - 1414: "ibm-mqseries", - 1415: "dbstar", - 1416: "novell-lu6-2", - 1417: "timbuktu-srv1", - 1418: "timbuktu-srv2", - 1419: "timbuktu-srv3", - 1420: "timbuktu-srv4", - 1421: "gandalf-lm", - 1422: "autodesk-lm", - 1423: "essbase", - 1424: "hybrid", - 1425: "zion-lm", - 1426: "sais", - 1427: "mloadd", - 1428: "informatik-lm", - 1429: "nms", - 1430: "tpdu", - 1431: "rgtp", - 1432: "blueberry-lm", - 1433: "ms-sql-s", - 1434: "ms-sql-m", - 1435: "ibm-cics", - 1436: "saism", - 1437: "tabula", - 1438: "eicon-server", - 1439: "eicon-x25", - 1440: "eicon-slp", - 1441: "cadis-1", - 1442: "cadis-2", - 1443: "ies-lm", - 1444: "marcam-lm", - 1445: "proxima-lm", - 1446: "ora-lm", - 1447: "apri-lm", - 1448: "oc-lm", - 1449: "peport", - 1450: "dwf", - 1451: "infoman", - 1452: "gtegsc-lm", - 1453: "genie-lm", - 1454: "interhdl-elmd", - 1455: "esl-lm", - 1456: "dca", - 1457: "valisys-lm", - 1458: "nrcabq-lm", - 1459: "proshare1", - 1460: "proshare2", - 1461: "ibm-wrless-lan", - 1462: "world-lm", - 1463: "nucleus", - 1464: "msl-lmd", - 1465: "pipes", - 1466: "oceansoft-lm", - 1467: "csdmbase", - 1468: "csdm", - 1469: "aal-lm", - 1470: "uaiact", - 1471: "csdmbase", - 1472: "csdm", - 1473: "openmath", - 1474: "telefinder", - 1475: "taligent-lm", - 1476: "clvm-cfg", - 1477: "ms-sna-server", - 1478: "ms-sna-base", - 1479: "dberegister", - 1480: "pacerforum", - 1481: "airs", - 1482: "miteksys-lm", - 1483: "afs", - 1484: "confluent", - 1485: "lansource", - 1486: "nms-topo-serv", - 1487: "localinfosrvr", - 1488: "docstor", - 1489: "dmdocbroker", - 1490: "insitu-conf", - 1492: "stone-design-1", - 1493: "netmap-lm", - 1494: "ica", - 1495: "cvc", - 1496: "liberty-lm", - 1497: "rfx-lm", - 1498: "sybase-sqlany", - 1499: "fhc", - 1500: "vlsi-lm", - 1501: "saiscm", - 1502: "shivadiscovery", - 1503: "imtc-mcs", - 1504: "evb-elm", - 1505: "funkproxy", - 1506: "utcd", - 1507: "symplex", - 1508: "diagmond", - 1509: "robcad-lm", - 1510: "mvx-lm", - 1511: "3l-l1", - 1512: "wins", - 1513: "fujitsu-dtc", - 1514: "fujitsu-dtcns", - 1515: "ifor-protocol", - 1516: "vpad", - 1517: "vpac", - 1518: "vpvd", - 1519: "vpvc", - 1520: "atm-zip-office", - 1521: "ncube-lm", - 1522: "ricardo-lm", - 1523: "cichild-lm", - 1524: "ingreslock", - 1525: "orasrv", - 1526: "pdap-np", - 1527: "tlisrv", - 1529: "coauthor", - 1530: "rap-service", - 1531: "rap-listen", - 1532: "miroconnect", - 1533: "virtual-places", - 1534: "micromuse-lm", - 1535: "ampr-info", - 1536: "ampr-inter", - 1537: "sdsc-lm", - 1538: "3ds-lm", - 1539: "intellistor-lm", - 1540: "rds", - 1541: "rds2", - 1542: "gridgen-elmd", - 1543: "simba-cs", - 1544: "aspeclmd", - 1545: "vistium-share", - 1546: "abbaccuray", - 1547: "laplink", - 1548: "axon-lm", - 1549: "shivahose", - 1550: "3m-image-lm", - 1551: "hecmtl-db", - 1552: "pciarray", - 1553: "sna-cs", - 1554: "caci-lm", - 1555: "livelan", - 1556: "veritas-pbx", - 1557: "arbortext-lm", - 1558: "xingmpeg", - 1559: "web2host", - 1560: "asci-val", - 1561: "facilityview", - 1562: "pconnectmgr", - 1563: "cadabra-lm", - 1564: "pay-per-view", - 1565: "winddlb", - 1566: "corelvideo", - 1567: "jlicelmd", - 1568: "tsspmap", - 1569: "ets", - 1570: "orbixd", - 1571: "rdb-dbs-disp", - 1572: "chip-lm", - 1573: "itscomm-ns", - 1574: "mvel-lm", - 1575: "oraclenames", - 1576: "moldflow-lm", - 1577: "hypercube-lm", - 1578: "jacobus-lm", - 1579: "ioc-sea-lm", - 1580: "tn-tl-r1", - 1581: "mil-2045-47001", - 1582: "msims", - 1583: "simbaexpress", - 1584: "tn-tl-fd2", - 1585: "intv", - 1586: "ibm-abtact", - 1587: "pra-elmd", - 1588: "triquest-lm", - 1589: "vqp", - 1590: "gemini-lm", - 1591: "ncpm-pm", - 1592: "commonspace", - 1593: "mainsoft-lm", - 1594: "sixtrak", - 1595: "radio", - 1596: "radio-sm", - 1597: "orbplus-iiop", - 1598: "picknfs", - 1599: "simbaservices", - 1600: "issd", - 1601: "aas", - 1602: "inspect", - 1603: "picodbc", - 1604: "icabrowser", - 1605: "slp", - 1606: "slm-api", - 1607: "stt", - 1608: "smart-lm", - 1609: "isysg-lm", - 1610: "taurus-wh", - 1611: "ill", - 1612: "netbill-trans", - 1613: "netbill-keyrep", - 1614: "netbill-cred", - 1615: "netbill-auth", - 1616: "netbill-prod", - 1617: "nimrod-agent", - 1618: "skytelnet", - 1619: "xs-openstorage", - 1620: "faxportwinport", - 1621: "softdataphone", - 1622: "ontime", - 1623: "jaleosnd", - 1624: "udp-sr-port", - 1625: "svs-omagent", - 1626: "shockwave", - 1627: "t128-gateway", - 1628: "lontalk-norm", - 1629: "lontalk-urgnt", - 1630: "oraclenet8cman", - 1631: "visitview", - 1632: "pammratc", - 1633: "pammrpc", - 1634: "loaprobe", - 1635: "edb-server1", - 1636: "isdc", - 1637: "islc", - 1638: "ismc", - 1639: "cert-initiator", - 1640: "cert-responder", - 1641: "invision", - 1642: "isis-am", - 1643: "isis-ambc", - 1644: "saiseh", - 1645: "sightline", - 1646: "sa-msg-port", - 1647: "rsap", - 1648: "concurrent-lm", - 1649: "kermit", - 1650: "nkd", - 1651: "shiva-confsrvr", - 1652: "xnmp", - 1653: "alphatech-lm", - 1654: "stargatealerts", - 1655: "dec-mbadmin", - 1656: "dec-mbadmin-h", - 1657: "fujitsu-mmpdc", - 1658: "sixnetudr", - 1659: "sg-lm", - 1660: "skip-mc-gikreq", - 1661: "netview-aix-1", - 1662: "netview-aix-2", - 1663: "netview-aix-3", - 1664: "netview-aix-4", - 1665: "netview-aix-5", - 1666: "netview-aix-6", - 1667: "netview-aix-7", - 1668: "netview-aix-8", - 1669: "netview-aix-9", - 1670: "netview-aix-10", - 1671: "netview-aix-11", - 1672: "netview-aix-12", - 1673: "proshare-mc-1", - 1674: "proshare-mc-2", - 1675: "pdp", - 1676: "netcomm1", - 1677: "groupwise", - 1678: "prolink", - 1679: "darcorp-lm", - 1680: "microcom-sbp", - 1681: "sd-elmd", - 1682: "lanyon-lantern", - 1683: "ncpm-hip", - 1684: "snaresecure", - 1685: "n2nremote", - 1686: "cvmon", - 1687: "nsjtp-ctrl", - 1688: "nsjtp-data", - 1689: "firefox", - 1690: "ng-umds", - 1691: "empire-empuma", - 1692: "sstsys-lm", - 1693: "rrirtr", - 1694: "rrimwm", - 1695: "rrilwm", - 1696: "rrifmm", - 1697: "rrisat", - 1698: "rsvp-encap-1", - 1699: "rsvp-encap-2", - 1700: "mps-raft", - 1701: "l2f", - 1702: "deskshare", - 1703: "hb-engine", - 1704: "bcs-broker", - 1705: "slingshot", - 1706: "jetform", - 1707: "vdmplay", - 1708: "gat-lmd", - 1709: "centra", - 1710: "impera", - 1711: "pptconference", - 1712: "registrar", - 1713: "conferencetalk", - 1714: "sesi-lm", - 1715: "houdini-lm", - 1716: "xmsg", - 1717: "fj-hdnet", - 1718: "h323gatedisc", - 1719: "h323gatestat", - 1720: "h323hostcall", - 1721: "caicci", - 1722: "hks-lm", - 1723: "pptp", - 1724: "csbphonemaster", - 1725: "iden-ralp", - 1726: "iberiagames", - 1727: "winddx", - 1728: "telindus", - 1729: "citynl", - 1730: "roketz", - 1731: "msiccp", - 1732: "proxim", - 1733: "siipat", - 1734: "cambertx-lm", - 1735: "privatechat", - 1736: "street-stream", - 1737: "ultimad", - 1738: "gamegen1", - 1739: "webaccess", - 1740: "encore", - 1741: "cisco-net-mgmt", - 1742: "3Com-nsd", - 1743: "cinegrfx-lm", - 1744: "ncpm-ft", - 1745: "remote-winsock", - 1746: "ftrapid-1", - 1747: "ftrapid-2", - 1748: "oracle-em1", - 1749: "aspen-services", - 1750: "sslp", - 1751: "swiftnet", - 1752: "lofr-lm", - 1753: "predatar-comms", - 1754: "oracle-em2", - 1755: "ms-streaming", - 1756: "capfast-lmd", - 1757: "cnhrp", - 1758: "tftp-mcast", - 1759: "spss-lm", - 1760: "www-ldap-gw", - 1761: "cft-0", - 1762: "cft-1", - 1763: "cft-2", - 1764: "cft-3", - 1765: "cft-4", - 1766: "cft-5", - 1767: "cft-6", - 1768: "cft-7", - 1769: "bmc-net-adm", - 1770: "bmc-net-svc", - 1771: "vaultbase", - 1772: "essweb-gw", - 1773: "kmscontrol", - 1774: "global-dtserv", - 1775: "vdab", - 1776: "femis", - 1777: "powerguardian", - 1778: "prodigy-intrnet", - 1779: "pharmasoft", - 1780: "dpkeyserv", - 1781: "answersoft-lm", - 1782: "hp-hcip", - 1784: "finle-lm", - 1785: "windlm", - 1786: "funk-logger", - 1787: "funk-license", - 1788: "psmond", - 1789: "hello", - 1790: "nmsp", - 1791: "ea1", - 1792: "ibm-dt-2", - 1793: "rsc-robot", - 1794: "cera-bcm", - 1795: "dpi-proxy", - 1796: "vocaltec-admin", - 1797: "uma", - 1798: "etp", - 1799: "netrisk", - 1800: "ansys-lm", - 1801: "msmq", - 1802: "concomp1", - 1803: "hp-hcip-gwy", - 1804: "enl", - 1805: "enl-name", - 1806: "musiconline", - 1807: "fhsp", - 1808: "oracle-vp2", - 1809: "oracle-vp1", - 1810: "jerand-lm", - 1811: "scientia-sdb", - 1812: "radius", - 1813: "radius-acct", - 1814: "tdp-suite", - 1815: "mmpft", - 1816: "harp", - 1817: "rkb-oscs", - 1818: "etftp", - 1819: "plato-lm", - 1820: "mcagent", - 1821: "donnyworld", - 1822: "es-elmd", - 1823: "unisys-lm", - 1824: "metrics-pas", - 1825: "direcpc-video", - 1826: "ardt", - 1827: "asi", - 1828: "itm-mcell-u", - 1829: "optika-emedia", - 1830: "net8-cman", - 1831: "myrtle", - 1832: "tht-treasure", - 1833: "udpradio", - 1834: "ardusuni", - 1835: "ardusmul", - 1836: "ste-smsc", - 1837: "csoft1", - 1838: "talnet", - 1839: "netopia-vo1", - 1840: "netopia-vo2", - 1841: "netopia-vo3", - 1842: "netopia-vo4", - 1843: "netopia-vo5", - 1844: "direcpc-dll", - 1845: "altalink", - 1846: "tunstall-pnc", - 1847: "slp-notify", - 1848: "fjdocdist", - 1849: "alpha-sms", - 1850: "gsi", - 1851: "ctcd", - 1852: "virtual-time", - 1853: "vids-avtp", - 1854: "buddy-draw", - 1855: "fiorano-rtrsvc", - 1856: "fiorano-msgsvc", - 1857: "datacaptor", - 1858: "privateark", - 1859: "gammafetchsvr", - 1860: "sunscalar-svc", - 1861: "lecroy-vicp", - 1862: "mysql-cm-agent", - 1863: "msnp", - 1864: "paradym-31port", - 1865: "entp", - 1866: "swrmi", - 1867: "udrive", - 1868: "viziblebrowser", - 1869: "transact", - 1870: "sunscalar-dns", - 1871: "canocentral0", - 1872: "canocentral1", - 1873: "fjmpjps", - 1874: "fjswapsnp", - 1875: "westell-stats", - 1876: "ewcappsrv", - 1877: "hp-webqosdb", - 1878: "drmsmc", - 1879: "nettgain-nms", - 1880: "vsat-control", - 1881: "ibm-mqseries2", - 1882: "ecsqdmn", - 1883: "mqtt", - 1884: "idmaps", - 1885: "vrtstrapserver", - 1886: "leoip", - 1887: "filex-lport", - 1888: "ncconfig", - 1889: "unify-adapter", - 1890: "wilkenlistener", - 1891: "childkey-notif", - 1892: "childkey-ctrl", - 1893: "elad", - 1894: "o2server-port", - 1896: "b-novative-ls", - 1897: "metaagent", - 1898: "cymtec-port", - 1899: "mc2studios", - 1900: "ssdp", - 1901: "fjicl-tep-a", - 1902: "fjicl-tep-b", - 1903: "linkname", - 1904: "fjicl-tep-c", - 1905: "sugp", - 1906: "tpmd", - 1907: "intrastar", - 1908: "dawn", - 1909: "global-wlink", - 1910: "ultrabac", - 1911: "mtp", - 1912: "rhp-iibp", - 1913: "armadp", - 1914: "elm-momentum", - 1915: "facelink", - 1916: "persona", - 1917: "noagent", - 1918: "can-nds", - 1919: "can-dch", - 1920: "can-ferret", - 1921: "noadmin", - 1922: "tapestry", - 1923: "spice", - 1924: "xiip", - 1925: "discovery-port", - 1926: "egs", - 1927: "videte-cipc", - 1928: "emsd-port", - 1929: "bandwiz-system", - 1930: "driveappserver", - 1931: "amdsched", - 1932: "ctt-broker", - 1933: "xmapi", - 1934: "xaapi", - 1935: "macromedia-fcs", - 1936: "jetcmeserver", - 1937: "jwserver", - 1938: "jwclient", - 1939: "jvserver", - 1940: "jvclient", - 1941: "dic-aida", - 1942: "res", - 1943: "beeyond-media", - 1944: "close-combat", - 1945: "dialogic-elmd", - 1946: "tekpls", - 1947: "sentinelsrm", - 1948: "eye2eye", - 1949: "ismaeasdaqlive", - 1950: "ismaeasdaqtest", - 1951: "bcs-lmserver", - 1952: "mpnjsc", - 1953: "rapidbase", - 1954: "abr-api", - 1955: "abr-secure", - 1956: "vrtl-vmf-ds", - 1957: "unix-status", - 1958: "dxadmind", - 1959: "simp-all", - 1960: "nasmanager", - 1961: "bts-appserver", - 1962: "biap-mp", - 1963: "webmachine", - 1964: "solid-e-engine", - 1965: "tivoli-npm", - 1966: "slush", - 1967: "sns-quote", - 1968: "lipsinc", - 1969: "lipsinc1", - 1970: "netop-rc", - 1971: "netop-school", - 1972: "intersys-cache", - 1973: "dlsrap", - 1974: "drp", - 1975: "tcoflashagent", - 1976: "tcoregagent", - 1977: "tcoaddressbook", - 1978: "unisql", - 1979: "unisql-java", - 1980: "pearldoc-xact", - 1981: "p2pq", - 1982: "estamp", - 1983: "lhtp", - 1984: "bb", - 1985: "hsrp", - 1986: "licensedaemon", - 1987: "tr-rsrb-p1", - 1988: "tr-rsrb-p2", - 1989: "tr-rsrb-p3", - 1990: "stun-p1", - 1991: "stun-p2", - 1992: "stun-p3", - 1993: "snmp-tcp-port", - 1994: "stun-port", - 1995: "perf-port", - 1996: "tr-rsrb-port", - 1997: "gdp-port", - 1998: "x25-svc-port", - 1999: "tcp-id-port", - 2000: "cisco-sccp", - 2001: "dc", - 2002: "globe", - 2003: "brutus", - 2004: "mailbox", - 2005: "berknet", - 2006: "invokator", - 2007: "dectalk", - 2008: "conf", - 2009: "news", - 2010: "search", - 2011: "raid-cc", - 2012: "ttyinfo", - 2013: "raid-am", - 2014: "troff", - 2015: "cypress", - 2016: "bootserver", - 2017: "cypress-stat", - 2018: "terminaldb", - 2019: "whosockami", - 2020: "xinupageserver", - 2021: "servexec", - 2022: "down", - 2023: "xinuexpansion3", - 2024: "xinuexpansion4", - 2025: "ellpack", - 2026: "scrabble", - 2027: "shadowserver", - 2028: "submitserver", - 2029: "hsrpv6", - 2030: "device2", - 2031: "mobrien-chat", - 2032: "blackboard", - 2033: "glogger", - 2034: "scoremgr", - 2035: "imsldoc", - 2036: "e-dpnet", - 2037: "applus", - 2038: "objectmanager", - 2039: "prizma", - 2040: "lam", - 2041: "interbase", - 2042: "isis", - 2043: "isis-bcast", - 2044: "rimsl", - 2045: "cdfunc", - 2046: "sdfunc", - 2047: "dls", - 2048: "dls-monitor", - 2049: "shilp", - 2050: "av-emb-config", - 2051: "epnsdp", - 2052: "clearvisn", - 2053: "lot105-ds-upd", - 2054: "weblogin", - 2055: "iop", - 2056: "omnisky", - 2057: "rich-cp", - 2058: "newwavesearch", - 2059: "bmc-messaging", - 2060: "teleniumdaemon", - 2061: "netmount", - 2062: "icg-swp", - 2063: "icg-bridge", - 2064: "icg-iprelay", - 2065: "dlsrpn", - 2066: "aura", - 2067: "dlswpn", - 2068: "avauthsrvprtcl", - 2069: "event-port", - 2070: "ah-esp-encap", - 2071: "acp-port", - 2072: "msync", - 2073: "gxs-data-port", - 2074: "vrtl-vmf-sa", - 2075: "newlixengine", - 2076: "newlixconfig", - 2077: "tsrmagt", - 2078: "tpcsrvr", - 2079: "idware-router", - 2080: "autodesk-nlm", - 2081: "kme-trap-port", - 2082: "infowave", - 2083: "radsec", - 2084: "sunclustergeo", - 2085: "ada-cip", - 2086: "gnunet", - 2087: "eli", - 2088: "ip-blf", - 2089: "sep", - 2090: "lrp", - 2091: "prp", - 2092: "descent3", - 2093: "nbx-cc", - 2094: "nbx-au", - 2095: "nbx-ser", - 2096: "nbx-dir", - 2097: "jetformpreview", - 2098: "dialog-port", - 2099: "h2250-annex-g", - 2100: "amiganetfs", - 2101: "rtcm-sc104", - 2102: "zephyr-srv", - 2103: "zephyr-clt", - 2104: "zephyr-hm", - 2105: "minipay", - 2106: "mzap", - 2107: "bintec-admin", - 2108: "comcam", - 2109: "ergolight", - 2110: "umsp", - 2111: "dsatp", - 2112: "idonix-metanet", - 2113: "hsl-storm", - 2114: "newheights", - 2115: "kdm", - 2116: "ccowcmr", - 2117: "mentaclient", - 2118: "mentaserver", - 2119: "gsigatekeeper", - 2120: "qencp", - 2121: "scientia-ssdb", - 2122: "caupc-remote", - 2123: "gtp-control", - 2124: "elatelink", - 2125: "lockstep", - 2126: "pktcable-cops", - 2127: "index-pc-wb", - 2128: "net-steward", - 2129: "cs-live", - 2130: "xds", - 2131: "avantageb2b", - 2132: "solera-epmap", - 2133: "zymed-zpp", - 2134: "avenue", - 2135: "gris", - 2136: "appworxsrv", - 2137: "connect", - 2138: "unbind-cluster", - 2139: "ias-auth", - 2140: "ias-reg", - 2141: "ias-admind", - 2142: "tdmoip", - 2143: "lv-jc", - 2144: "lv-ffx", - 2145: "lv-pici", - 2146: "lv-not", - 2147: "lv-auth", - 2148: "veritas-ucl", - 2149: "acptsys", - 2150: "dynamic3d", - 2151: "docent", - 2152: "gtp-user", - 2153: "ctlptc", - 2154: "stdptc", - 2155: "brdptc", - 2156: "trp", - 2157: "xnds", - 2158: "touchnetplus", - 2159: "gdbremote", - 2160: "apc-2160", - 2161: "apc-2161", - 2162: "navisphere", - 2163: "navisphere-sec", - 2164: "ddns-v3", - 2165: "x-bone-api", - 2166: "iwserver", - 2167: "raw-serial", - 2168: "easy-soft-mux", - 2169: "brain", - 2170: "eyetv", - 2171: "msfw-storage", - 2172: "msfw-s-storage", - 2173: "msfw-replica", - 2174: "msfw-array", - 2175: "airsync", - 2176: "rapi", - 2177: "qwave", - 2178: "bitspeer", - 2179: "vmrdp", - 2180: "mc-gt-srv", - 2181: "eforward", - 2182: "cgn-stat", - 2183: "cgn-config", - 2184: "nvd", - 2185: "onbase-dds", - 2186: "gtaua", - 2187: "ssmc", - 2188: "radware-rpm", - 2189: "radware-rpm-s", - 2190: "tivoconnect", - 2191: "tvbus", - 2192: "asdis", - 2193: "drwcs", - 2197: "mnp-exchange", - 2198: "onehome-remote", - 2199: "onehome-help", - 2200: "ici", - 2201: "ats", - 2202: "imtc-map", - 2203: "b2-runtime", - 2204: "b2-license", - 2205: "jps", - 2206: "hpocbus", - 2207: "hpssd", - 2208: "hpiod", - 2209: "rimf-ps", - 2210: "noaaport", - 2211: "emwin", - 2212: "leecoposserver", - 2213: "kali", - 2214: "rpi", - 2215: "ipcore", - 2216: "vtu-comms", - 2217: "gotodevice", - 2218: "bounzza", - 2219: "netiq-ncap", - 2220: "netiq", - 2221: "ethernet-ip-s", - 2222: "EtherNet-IP-1", - 2223: "rockwell-csp2", - 2224: "efi-mg", - 2225: "rcip-itu", - 2226: "di-drm", - 2227: "di-msg", - 2228: "ehome-ms", - 2229: "datalens", - 2230: "queueadm", - 2231: "wimaxasncp", - 2232: "ivs-video", - 2233: "infocrypt", - 2234: "directplay", - 2235: "sercomm-wlink", - 2236: "nani", - 2237: "optech-port1-lm", - 2238: "aviva-sna", - 2239: "imagequery", - 2240: "recipe", - 2241: "ivsd", - 2242: "foliocorp", - 2243: "magicom", - 2244: "nmsserver", - 2245: "hao", - 2246: "pc-mta-addrmap", - 2247: "antidotemgrsvr", - 2248: "ums", - 2249: "rfmp", - 2250: "remote-collab", - 2251: "dif-port", - 2252: "njenet-ssl", - 2253: "dtv-chan-req", - 2254: "seispoc", - 2255: "vrtp", - 2256: "pcc-mfp", - 2257: "simple-tx-rx", - 2258: "rcts", - 2260: "apc-2260", - 2261: "comotionmaster", - 2262: "comotionback", - 2263: "ecwcfg", - 2264: "apx500api-1", - 2265: "apx500api-2", - 2266: "mfserver", - 2267: "ontobroker", - 2268: "amt", - 2269: "mikey", - 2270: "starschool", - 2271: "mmcals", - 2272: "mmcal", - 2273: "mysql-im", - 2274: "pcttunnell", - 2275: "ibridge-data", - 2276: "ibridge-mgmt", - 2277: "bluectrlproxy", - 2278: "s3db", - 2279: "xmquery", - 2280: "lnvpoller", - 2281: "lnvconsole", - 2282: "lnvalarm", - 2283: "lnvstatus", - 2284: "lnvmaps", - 2285: "lnvmailmon", - 2286: "nas-metering", - 2287: "dna", - 2288: "netml", - 2289: "dict-lookup", - 2290: "sonus-logging", - 2291: "eapsp", - 2292: "mib-streaming", - 2293: "npdbgmngr", - 2294: "konshus-lm", - 2295: "advant-lm", - 2296: "theta-lm", - 2297: "d2k-datamover1", - 2298: "d2k-datamover2", - 2299: "pc-telecommute", - 2300: "cvmmon", - 2301: "cpq-wbem", - 2302: "binderysupport", - 2303: "proxy-gateway", - 2304: "attachmate-uts", - 2305: "mt-scaleserver", - 2306: "tappi-boxnet", - 2307: "pehelp", - 2308: "sdhelp", - 2309: "sdserver", - 2310: "sdclient", - 2311: "messageservice", - 2312: "wanscaler", - 2313: "iapp", - 2314: "cr-websystems", - 2315: "precise-sft", - 2316: "sent-lm", - 2317: "attachmate-g32", - 2318: "cadencecontrol", - 2319: "infolibria", - 2320: "siebel-ns", - 2321: "rdlap", - 2322: "ofsd", - 2323: "3d-nfsd", - 2324: "cosmocall", - 2325: "ansysli", - 2326: "idcp", - 2327: "xingcsm", - 2328: "netrix-sftm", - 2329: "nvd", - 2330: "tscchat", - 2331: "agentview", - 2332: "rcc-host", - 2333: "snapp", - 2334: "ace-client", - 2335: "ace-proxy", - 2336: "appleugcontrol", - 2337: "ideesrv", - 2338: "norton-lambert", - 2339: "3com-webview", - 2340: "wrs-registry", - 2341: "xiostatus", - 2342: "manage-exec", - 2343: "nati-logos", - 2344: "fcmsys", - 2345: "dbm", - 2346: "redstorm-join", - 2347: "redstorm-find", - 2348: "redstorm-info", - 2349: "redstorm-diag", - 2350: "psbserver", - 2351: "psrserver", - 2352: "pslserver", - 2353: "pspserver", - 2354: "psprserver", - 2355: "psdbserver", - 2356: "gxtelmd", - 2357: "unihub-server", - 2358: "futrix", - 2359: "flukeserver", - 2360: "nexstorindltd", - 2361: "tl1", - 2362: "digiman", - 2363: "mediacntrlnfsd", - 2364: "oi-2000", - 2365: "dbref", - 2366: "qip-login", - 2367: "service-ctrl", - 2368: "opentable", - 2370: "l3-hbmon", - 2371: "hp-rda", - 2372: "lanmessenger", - 2373: "remographlm", - 2374: "hydra", - 2375: "docker", - 2376: "docker-s", - 2377: "swarm", - 2379: "etcd-client", - 2380: "etcd-server", - 2381: "compaq-https", - 2382: "ms-olap3", - 2383: "ms-olap4", - 2384: "sd-request", - 2385: "sd-data", - 2386: "virtualtape", - 2387: "vsamredirector", - 2388: "mynahautostart", - 2389: "ovsessionmgr", - 2390: "rsmtp", - 2391: "3com-net-mgmt", - 2392: "tacticalauth", - 2393: "ms-olap1", - 2394: "ms-olap2", - 2395: "lan900-remote", - 2396: "wusage", - 2397: "ncl", - 2398: "orbiter", - 2399: "fmpro-fdal", - 2400: "opequus-server", - 2401: "cvspserver", - 2402: "taskmaster2000", - 2403: "taskmaster2000", - 2404: "iec-104", - 2405: "trc-netpoll", - 2406: "jediserver", - 2407: "orion", - 2408: "railgun-webaccl", - 2409: "sns-protocol", - 2410: "vrts-registry", - 2411: "netwave-ap-mgmt", - 2412: "cdn", - 2413: "orion-rmi-reg", - 2414: "beeyond", - 2415: "codima-rtp", - 2416: "rmtserver", - 2417: "composit-server", - 2418: "cas", - 2419: "attachmate-s2s", - 2420: "dslremote-mgmt", - 2421: "g-talk", - 2422: "crmsbits", - 2423: "rnrp", - 2424: "kofax-svr", - 2425: "fjitsuappmgr", - 2426: "vcmp", - 2427: "mgcp-gateway", - 2428: "ott", - 2429: "ft-role", - 2430: "venus", - 2431: "venus-se", - 2432: "codasrv", - 2433: "codasrv-se", - 2434: "pxc-epmap", - 2435: "optilogic", - 2436: "topx", - 2437: "unicontrol", - 2438: "msp", - 2439: "sybasedbsynch", - 2440: "spearway", - 2441: "pvsw-inet", - 2442: "netangel", - 2443: "powerclientcsf", - 2444: "btpp2sectrans", - 2445: "dtn1", - 2446: "bues-service", - 2447: "ovwdb", - 2448: "hpppssvr", - 2449: "ratl", - 2450: "netadmin", - 2451: "netchat", - 2452: "snifferclient", - 2453: "madge-ltd", - 2454: "indx-dds", - 2455: "wago-io-system", - 2456: "altav-remmgt", - 2457: "rapido-ip", - 2458: "griffin", - 2459: "community", - 2460: "ms-theater", - 2461: "qadmifoper", - 2462: "qadmifevent", - 2463: "lsi-raid-mgmt", - 2464: "direcpc-si", - 2465: "lbm", - 2466: "lbf", - 2467: "high-criteria", - 2468: "qip-msgd", - 2469: "mti-tcs-comm", - 2470: "taskman-port", - 2471: "seaodbc", - 2472: "c3", - 2473: "aker-cdp", - 2474: "vitalanalysis", - 2475: "ace-server", - 2476: "ace-svr-prop", - 2477: "ssm-cvs", - 2478: "ssm-cssps", - 2479: "ssm-els", - 2480: "powerexchange", - 2481: "giop", - 2482: "giop-ssl", - 2483: "ttc", - 2484: "ttc-ssl", - 2485: "netobjects1", - 2486: "netobjects2", - 2487: "pns", - 2488: "moy-corp", - 2489: "tsilb", - 2490: "qip-qdhcp", - 2491: "conclave-cpp", - 2492: "groove", - 2493: "talarian-mqs", - 2494: "bmc-ar", - 2495: "fast-rem-serv", - 2496: "dirgis", - 2497: "quaddb", - 2498: "odn-castraq", - 2499: "unicontrol", - 2500: "rtsserv", - 2501: "rtsclient", - 2502: "kentrox-prot", - 2503: "nms-dpnss", - 2504: "wlbs", - 2505: "ppcontrol", - 2506: "jbroker", - 2507: "spock", - 2508: "jdatastore", - 2509: "fjmpss", - 2510: "fjappmgrbulk", - 2511: "metastorm", - 2512: "citrixima", - 2513: "citrixadmin", - 2514: "facsys-ntp", - 2515: "facsys-router", - 2516: "maincontrol", - 2517: "call-sig-trans", - 2518: "willy", - 2519: "globmsgsvc", - 2520: "pvsw", - 2521: "adaptecmgr", - 2522: "windb", - 2523: "qke-llc-v3", - 2524: "optiwave-lm", - 2525: "ms-v-worlds", - 2526: "ema-sent-lm", - 2527: "iqserver", - 2528: "ncr-ccl", - 2529: "utsftp", - 2530: "vrcommerce", - 2531: "ito-e-gui", - 2532: "ovtopmd", - 2533: "snifferserver", - 2534: "combox-web-acc", - 2535: "madcap", - 2536: "btpp2audctr1", - 2537: "upgrade", - 2538: "vnwk-prapi", - 2539: "vsiadmin", - 2540: "lonworks", - 2541: "lonworks2", - 2542: "udrawgraph", - 2543: "reftek", - 2544: "novell-zen", - 2545: "sis-emt", - 2546: "vytalvaultbrtp", - 2547: "vytalvaultvsmp", - 2548: "vytalvaultpipe", - 2549: "ipass", - 2550: "ads", - 2551: "isg-uda-server", - 2552: "call-logging", - 2553: "efidiningport", - 2554: "vcnet-link-v10", - 2555: "compaq-wcp", - 2556: "nicetec-nmsvc", - 2557: "nicetec-mgmt", - 2558: "pclemultimedia", - 2559: "lstp", - 2560: "labrat", - 2561: "mosaixcc", - 2562: "delibo", - 2563: "cti-redwood", - 2564: "hp-3000-telnet", - 2565: "coord-svr", - 2566: "pcs-pcw", - 2567: "clp", - 2568: "spamtrap", - 2569: "sonuscallsig", - 2570: "hs-port", - 2571: "cecsvc", - 2572: "ibp", - 2573: "trustestablish", - 2574: "blockade-bpsp", - 2575: "hl7", - 2576: "tclprodebugger", - 2577: "scipticslsrvr", - 2578: "rvs-isdn-dcp", - 2579: "mpfoncl", - 2580: "tributary", - 2581: "argis-te", - 2582: "argis-ds", - 2583: "mon", - 2584: "cyaserv", - 2585: "netx-server", - 2586: "netx-agent", - 2587: "masc", - 2588: "privilege", - 2589: "quartus-tcl", - 2590: "idotdist", - 2591: "maytagshuffle", - 2592: "netrek", - 2593: "mns-mail", - 2594: "dts", - 2595: "worldfusion1", - 2596: "worldfusion2", - 2597: "homesteadglory", - 2598: "citriximaclient", - 2599: "snapd", - 2600: "hpstgmgr", - 2601: "discp-client", - 2602: "discp-server", - 2603: "servicemeter", - 2604: "nsc-ccs", - 2605: "nsc-posa", - 2606: "netmon", - 2607: "connection", - 2608: "wag-service", - 2609: "system-monitor", - 2610: "versa-tek", - 2611: "lionhead", - 2612: "qpasa-agent", - 2613: "smntubootstrap", - 2614: "neveroffline", - 2615: "firepower", - 2616: "appswitch-emp", - 2617: "cmadmin", - 2618: "priority-e-com", - 2619: "bruce", - 2620: "lpsrecommender", - 2621: "miles-apart", - 2622: "metricadbc", - 2623: "lmdp", - 2624: "aria", - 2625: "blwnkl-port", - 2626: "gbjd816", - 2627: "moshebeeri", - 2628: "dict", - 2629: "sitaraserver", - 2630: "sitaramgmt", - 2631: "sitaradir", - 2632: "irdg-post", - 2633: "interintelli", - 2634: "pk-electronics", - 2635: "backburner", - 2636: "solve", - 2637: "imdocsvc", - 2638: "sybaseanywhere", - 2639: "aminet", - 2640: "ami-control", - 2641: "hdl-srv", - 2642: "tragic", - 2643: "gte-samp", - 2644: "travsoft-ipx-t", - 2645: "novell-ipx-cmd", - 2646: "and-lm", - 2647: "syncserver", - 2648: "upsnotifyprot", - 2649: "vpsipport", - 2650: "eristwoguns", - 2651: "ebinsite", - 2652: "interpathpanel", - 2653: "sonus", - 2654: "corel-vncadmin", - 2655: "unglue", - 2656: "kana", - 2657: "sns-dispatcher", - 2658: "sns-admin", - 2659: "sns-query", - 2660: "gcmonitor", - 2661: "olhost", - 2662: "bintec-capi", - 2663: "bintec-tapi", - 2664: "patrol-mq-gm", - 2665: "patrol-mq-nm", - 2666: "extensis", - 2667: "alarm-clock-s", - 2668: "alarm-clock-c", - 2669: "toad", - 2670: "tve-announce", - 2671: "newlixreg", - 2672: "nhserver", - 2673: "firstcall42", - 2674: "ewnn", - 2675: "ttc-etap", - 2676: "simslink", - 2677: "gadgetgate1way", - 2678: "gadgetgate2way", - 2679: "syncserverssl", - 2680: "pxc-sapxom", - 2681: "mpnjsomb", - 2683: "ncdloadbalance", - 2684: "mpnjsosv", - 2685: "mpnjsocl", - 2686: "mpnjsomg", - 2687: "pq-lic-mgmt", - 2688: "md-cg-http", - 2689: "fastlynx", - 2690: "hp-nnm-data", - 2691: "itinternet", - 2692: "admins-lms", - 2694: "pwrsevent", - 2695: "vspread", - 2696: "unifyadmin", - 2697: "oce-snmp-trap", - 2698: "mck-ivpip", - 2699: "csoft-plusclnt", - 2700: "tqdata", - 2701: "sms-rcinfo", - 2702: "sms-xfer", - 2703: "sms-chat", - 2704: "sms-remctrl", - 2705: "sds-admin", - 2706: "ncdmirroring", - 2707: "emcsymapiport", - 2708: "banyan-net", - 2709: "supermon", - 2710: "sso-service", - 2711: "sso-control", - 2712: "aocp", - 2713: "raventbs", - 2714: "raventdm", - 2715: "hpstgmgr2", - 2716: "inova-ip-disco", - 2717: "pn-requester", - 2718: "pn-requester2", - 2719: "scan-change", - 2720: "wkars", - 2721: "smart-diagnose", - 2722: "proactivesrvr", - 2723: "watchdog-nt", - 2724: "qotps", - 2725: "msolap-ptp2", - 2726: "tams", - 2727: "mgcp-callagent", - 2728: "sqdr", - 2729: "tcim-control", - 2730: "nec-raidplus", - 2731: "fyre-messanger", - 2732: "g5m", - 2733: "signet-ctf", - 2734: "ccs-software", - 2735: "netiq-mc", - 2736: "radwiz-nms-srv", - 2737: "srp-feedback", - 2738: "ndl-tcp-ois-gw", - 2739: "tn-timing", - 2740: "alarm", - 2741: "tsb", - 2742: "tsb2", - 2743: "murx", - 2744: "honyaku", - 2745: "urbisnet", - 2746: "cpudpencap", - 2747: "fjippol-swrly", - 2748: "fjippol-polsvr", - 2749: "fjippol-cnsl", - 2750: "fjippol-port1", - 2751: "fjippol-port2", - 2752: "rsisysaccess", - 2753: "de-spot", - 2754: "apollo-cc", - 2755: "expresspay", - 2756: "simplement-tie", - 2757: "cnrp", - 2758: "apollo-status", - 2759: "apollo-gms", - 2760: "sabams", - 2761: "dicom-iscl", - 2762: "dicom-tls", - 2763: "desktop-dna", - 2764: "data-insurance", - 2765: "qip-audup", - 2766: "compaq-scp", - 2767: "uadtc", - 2768: "uacs", - 2769: "exce", - 2770: "veronica", - 2771: "vergencecm", - 2772: "auris", - 2773: "rbakcup1", - 2774: "rbakcup2", - 2775: "smpp", - 2776: "ridgeway1", - 2777: "ridgeway2", - 2778: "gwen-sonya", - 2779: "lbc-sync", - 2780: "lbc-control", - 2781: "whosells", - 2782: "everydayrc", - 2783: "aises", - 2784: "www-dev", - 2785: "aic-np", - 2786: "aic-oncrpc", - 2787: "piccolo", - 2788: "fryeserv", - 2789: "media-agent", - 2790: "plgproxy", - 2791: "mtport-regist", - 2792: "f5-globalsite", - 2793: "initlsmsad", - 2795: "livestats", - 2796: "ac-tech", - 2797: "esp-encap", - 2798: "tmesis-upshot", - 2799: "icon-discover", - 2800: "acc-raid", - 2801: "igcp", - 2802: "veritas-tcp1", - 2803: "btprjctrl", - 2804: "dvr-esm", - 2805: "wta-wsp-s", - 2806: "cspuni", - 2807: "cspmulti", - 2808: "j-lan-p", - 2809: "corbaloc", - 2810: "netsteward", - 2811: "gsiftp", - 2812: "atmtcp", - 2813: "llm-pass", - 2814: "llm-csv", - 2815: "lbc-measure", - 2816: "lbc-watchdog", - 2817: "nmsigport", - 2818: "rmlnk", - 2819: "fc-faultnotify", - 2820: "univision", - 2821: "vrts-at-port", - 2822: "ka0wuc", - 2823: "cqg-netlan", - 2824: "cqg-netlan-1", - 2826: "slc-systemlog", - 2827: "slc-ctrlrloops", - 2828: "itm-lm", - 2829: "silkp1", - 2830: "silkp2", - 2831: "silkp3", - 2832: "silkp4", - 2833: "glishd", - 2834: "evtp", - 2835: "evtp-data", - 2836: "catalyst", - 2837: "repliweb", - 2838: "starbot", - 2839: "nmsigport", - 2840: "l3-exprt", - 2841: "l3-ranger", - 2842: "l3-hawk", - 2843: "pdnet", - 2844: "bpcp-poll", - 2845: "bpcp-trap", - 2846: "aimpp-hello", - 2847: "aimpp-port-req", - 2848: "amt-blc-port", - 2849: "fxp", - 2850: "metaconsole", - 2851: "webemshttp", - 2852: "bears-01", - 2853: "ispipes", - 2854: "infomover", - 2855: "msrp", - 2856: "cesdinv", - 2857: "simctlp", - 2858: "ecnp", - 2859: "activememory", - 2860: "dialpad-voice1", - 2861: "dialpad-voice2", - 2862: "ttg-protocol", - 2863: "sonardata", - 2864: "astromed-main", - 2865: "pit-vpn", - 2866: "iwlistener", - 2867: "esps-portal", - 2868: "npep-messaging", - 2869: "icslap", - 2870: "daishi", - 2871: "msi-selectplay", - 2872: "radix", - 2874: "dxmessagebase1", - 2875: "dxmessagebase2", - 2876: "sps-tunnel", - 2877: "bluelance", - 2878: "aap", - 2879: "ucentric-ds", - 2880: "synapse", - 2881: "ndsp", - 2882: "ndtp", - 2883: "ndnp", - 2884: "flashmsg", - 2885: "topflow", - 2886: "responselogic", - 2887: "aironetddp", - 2888: "spcsdlobby", - 2889: "rsom", - 2890: "cspclmulti", - 2891: "cinegrfx-elmd", - 2892: "snifferdata", - 2893: "vseconnector", - 2894: "abacus-remote", - 2895: "natuslink", - 2896: "ecovisiong6-1", - 2897: "citrix-rtmp", - 2898: "appliance-cfg", - 2899: "powergemplus", - 2900: "quicksuite", - 2901: "allstorcns", - 2902: "netaspi", - 2903: "suitcase", - 2904: "m2ua", - 2905: "m3ua", - 2906: "caller9", - 2907: "webmethods-b2b", - 2908: "mao", - 2909: "funk-dialout", - 2910: "tdaccess", - 2911: "blockade", - 2912: "epicon", - 2913: "boosterware", - 2914: "gamelobby", - 2915: "tksocket", - 2916: "elvin-server", - 2917: "elvin-client", - 2918: "kastenchasepad", - 2919: "roboer", - 2920: "roboeda", - 2921: "cesdcdman", - 2922: "cesdcdtrn", - 2923: "wta-wsp-wtp-s", - 2924: "precise-vip", - 2926: "mobile-file-dl", - 2927: "unimobilectrl", - 2928: "redstone-cpss", - 2929: "amx-webadmin", - 2930: "amx-weblinx", - 2931: "circle-x", - 2932: "incp", - 2933: "4-tieropmgw", - 2934: "4-tieropmcli", - 2935: "qtp", - 2936: "otpatch", - 2937: "pnaconsult-lm", - 2938: "sm-pas-1", - 2939: "sm-pas-2", - 2940: "sm-pas-3", - 2941: "sm-pas-4", - 2942: "sm-pas-5", - 2943: "ttnrepository", - 2944: "megaco-h248", - 2945: "h248-binary", - 2946: "fjsvmpor", - 2947: "gpsd", - 2948: "wap-push", - 2949: "wap-pushsecure", - 2950: "esip", - 2951: "ottp", - 2952: "mpfwsas", - 2953: "ovalarmsrv", - 2954: "ovalarmsrv-cmd", - 2955: "csnotify", - 2956: "ovrimosdbman", - 2957: "jmact5", - 2958: "jmact6", - 2959: "rmopagt", - 2960: "dfoxserver", - 2961: "boldsoft-lm", - 2962: "iph-policy-cli", - 2963: "iph-policy-adm", - 2964: "bullant-srap", - 2965: "bullant-rap", - 2966: "idp-infotrieve", - 2967: "ssc-agent", - 2968: "enpp", - 2969: "essp", - 2970: "index-net", - 2971: "netclip", - 2972: "pmsm-webrctl", - 2973: "svnetworks", - 2974: "signal", - 2975: "fjmpcm", - 2976: "cns-srv-port", - 2977: "ttc-etap-ns", - 2978: "ttc-etap-ds", - 2979: "h263-video", - 2980: "wimd", - 2981: "mylxamport", - 2982: "iwb-whiteboard", - 2983: "netplan", - 2984: "hpidsadmin", - 2985: "hpidsagent", - 2986: "stonefalls", - 2987: "identify", - 2988: "hippad", - 2989: "zarkov", - 2990: "boscap", - 2991: "wkstn-mon", - 2992: "avenyo", - 2993: "veritas-vis1", - 2994: "veritas-vis2", - 2995: "idrs", - 2996: "vsixml", - 2997: "rebol", - 2998: "realsecure", - 2999: "remoteware-un", - 3000: "hbci", - 3001: "origo-native", - 3002: "exlm-agent", - 3003: "cgms", - 3004: "csoftragent", - 3005: "geniuslm", - 3006: "ii-admin", - 3007: "lotusmtap", - 3008: "midnight-tech", - 3009: "pxc-ntfy", - 3010: "gw", - 3011: "trusted-web", - 3012: "twsdss", - 3013: "gilatskysurfer", - 3014: "broker-service", - 3015: "nati-dstp", - 3016: "notify-srvr", - 3017: "event-listener", - 3018: "srvc-registry", - 3019: "resource-mgr", - 3020: "cifs", - 3021: "agriserver", - 3022: "csregagent", - 3023: "magicnotes", - 3024: "nds-sso", - 3025: "arepa-raft", - 3026: "agri-gateway", - 3027: "LiebDevMgmt-C", - 3028: "LiebDevMgmt-DM", - 3029: "LiebDevMgmt-A", - 3030: "arepa-cas", - 3031: "eppc", - 3032: "redwood-chat", - 3033: "pdb", - 3034: "osmosis-aeea", - 3035: "fjsv-gssagt", - 3036: "hagel-dump", - 3037: "hp-san-mgmt", - 3038: "santak-ups", - 3039: "cogitate", - 3040: "tomato-springs", - 3041: "di-traceware", - 3042: "journee", - 3043: "brp", - 3044: "epp", - 3045: "responsenet", - 3046: "di-ase", - 3047: "hlserver", - 3048: "pctrader", - 3049: "nsws", - 3050: "gds-db", - 3051: "galaxy-server", - 3052: "apc-3052", - 3053: "dsom-server", - 3054: "amt-cnf-prot", - 3055: "policyserver", - 3056: "cdl-server", - 3057: "goahead-fldup", - 3058: "videobeans", - 3059: "qsoft", - 3060: "interserver", - 3061: "cautcpd", - 3062: "ncacn-ip-tcp", - 3063: "ncadg-ip-udp", - 3064: "rprt", - 3065: "slinterbase", - 3066: "netattachsdmp", - 3067: "fjhpjp", - 3068: "ls3bcast", - 3069: "ls3", - 3070: "mgxswitch", - 3071: "xplat-replicate", - 3072: "csd-monitor", - 3073: "vcrp", - 3074: "xbox", - 3075: "orbix-locator", - 3076: "orbix-config", - 3077: "orbix-loc-ssl", - 3078: "orbix-cfg-ssl", - 3079: "lv-frontpanel", - 3080: "stm-pproc", - 3081: "tl1-lv", - 3082: "tl1-raw", - 3083: "tl1-telnet", - 3084: "itm-mccs", - 3085: "pcihreq", - 3086: "jdl-dbkitchen", - 3087: "asoki-sma", - 3088: "xdtp", - 3089: "ptk-alink", - 3090: "stss", - 3091: "1ci-smcs", - 3093: "rapidmq-center", - 3094: "rapidmq-reg", - 3095: "panasas", - 3096: "ndl-aps", - 3098: "umm-port", - 3099: "chmd", - 3100: "opcon-xps", - 3101: "hp-pxpib", - 3102: "slslavemon", - 3103: "autocuesmi", - 3104: "autocuelog", - 3105: "cardbox", - 3106: "cardbox-http", - 3107: "business", - 3108: "geolocate", - 3109: "personnel", - 3110: "sim-control", - 3111: "wsynch", - 3112: "ksysguard", - 3113: "cs-auth-svr", - 3114: "ccmad", - 3115: "mctet-master", - 3116: "mctet-gateway", - 3117: "mctet-jserv", - 3118: "pkagent", - 3119: "d2000kernel", - 3120: "d2000webserver", - 3121: "pcmk-remote", - 3122: "vtr-emulator", - 3123: "edix", - 3124: "beacon-port", - 3125: "a13-an", - 3127: "ctx-bridge", - 3128: "ndl-aas", - 3129: "netport-id", - 3130: "icpv2", - 3131: "netbookmark", - 3132: "ms-rule-engine", - 3133: "prism-deploy", - 3134: "ecp", - 3135: "peerbook-port", - 3136: "grubd", - 3137: "rtnt-1", - 3138: "rtnt-2", - 3139: "incognitorv", - 3140: "ariliamulti", - 3141: "vmodem", - 3142: "rdc-wh-eos", - 3143: "seaview", - 3144: "tarantella", - 3145: "csi-lfap", - 3146: "bears-02", - 3147: "rfio", - 3148: "nm-game-admin", - 3149: "nm-game-server", - 3150: "nm-asses-admin", - 3151: "nm-assessor", - 3152: "feitianrockey", - 3153: "s8-client-port", - 3154: "ccmrmi", - 3155: "jpegmpeg", - 3156: "indura", - 3157: "e3consultants", - 3158: "stvp", - 3159: "navegaweb-port", - 3160: "tip-app-server", - 3161: "doc1lm", - 3162: "sflm", - 3163: "res-sap", - 3164: "imprs", - 3165: "newgenpay", - 3166: "sossecollector", - 3167: "nowcontact", - 3168: "poweronnud", - 3169: "serverview-as", - 3170: "serverview-asn", - 3171: "serverview-gf", - 3172: "serverview-rm", - 3173: "serverview-icc", - 3174: "armi-server", - 3175: "t1-e1-over-ip", - 3176: "ars-master", - 3177: "phonex-port", - 3178: "radclientport", - 3179: "h2gf-w-2m", - 3180: "mc-brk-srv", - 3181: "bmcpatrolagent", - 3182: "bmcpatrolrnvu", - 3183: "cops-tls", - 3184: "apogeex-port", - 3185: "smpppd", - 3186: "iiw-port", - 3187: "odi-port", - 3188: "brcm-comm-port", - 3189: "pcle-infex", - 3190: "csvr-proxy", - 3191: "csvr-sslproxy", - 3192: "firemonrcc", - 3193: "spandataport", - 3194: "magbind", - 3195: "ncu-1", - 3196: "ncu-2", - 3197: "embrace-dp-s", - 3198: "embrace-dp-c", - 3199: "dmod-workspace", - 3200: "tick-port", - 3201: "cpq-tasksmart", - 3202: "intraintra", - 3203: "netwatcher-mon", - 3204: "netwatcher-db", - 3205: "isns", - 3206: "ironmail", - 3207: "vx-auth-port", - 3208: "pfu-prcallback", - 3209: "netwkpathengine", - 3210: "flamenco-proxy", - 3211: "avsecuremgmt", - 3212: "surveyinst", - 3213: "neon24x7", - 3214: "jmq-daemon-1", - 3215: "jmq-daemon-2", - 3216: "ferrari-foam", - 3217: "unite", - 3218: "smartpackets", - 3219: "wms-messenger", - 3220: "xnm-ssl", - 3221: "xnm-clear-text", - 3222: "glbp", - 3223: "digivote", - 3224: "aes-discovery", - 3225: "fcip-port", - 3226: "isi-irp", - 3227: "dwnmshttp", - 3228: "dwmsgserver", - 3229: "global-cd-port", - 3230: "sftdst-port", - 3231: "vidigo", - 3232: "mdtp", - 3233: "whisker", - 3234: "alchemy", - 3235: "mdap-port", - 3236: "apparenet-ts", - 3237: "apparenet-tps", - 3238: "apparenet-as", - 3239: "apparenet-ui", - 3240: "triomotion", - 3241: "sysorb", - 3242: "sdp-id-port", - 3243: "timelot", - 3244: "onesaf", - 3245: "vieo-fe", - 3246: "dvt-system", - 3247: "dvt-data", - 3248: "procos-lm", - 3249: "ssp", - 3250: "hicp", - 3251: "sysscanner", - 3252: "dhe", - 3253: "pda-data", - 3254: "pda-sys", - 3255: "semaphore", - 3256: "cpqrpm-agent", - 3257: "cpqrpm-server", - 3258: "ivecon-port", - 3259: "epncdp2", - 3260: "iscsi-target", - 3261: "winshadow", - 3262: "necp", - 3263: "ecolor-imager", - 3264: "ccmail", - 3265: "altav-tunnel", - 3266: "ns-cfg-server", - 3267: "ibm-dial-out", - 3268: "msft-gc", - 3269: "msft-gc-ssl", - 3270: "verismart", - 3271: "csoft-prev", - 3272: "user-manager", - 3273: "sxmp", - 3274: "ordinox-server", - 3275: "samd", - 3276: "maxim-asics", - 3277: "awg-proxy", - 3278: "lkcmserver", - 3279: "admind", - 3280: "vs-server", - 3281: "sysopt", - 3282: "datusorb", - 3283: "Apple Remote Desktop (Net Assistant)", - 3284: "4talk", - 3285: "plato", - 3286: "e-net", - 3287: "directvdata", - 3288: "cops", - 3289: "enpc", - 3290: "caps-lm", - 3291: "sah-lm", - 3292: "cart-o-rama", - 3293: "fg-fps", - 3294: "fg-gip", - 3295: "dyniplookup", - 3296: "rib-slm", - 3297: "cytel-lm", - 3298: "deskview", - 3299: "pdrncs", - 3300: "ceph", - 3302: "mcs-fastmail", - 3303: "opsession-clnt", - 3304: "opsession-srvr", - 3305: "odette-ftp", - 3306: "mysql", - 3307: "opsession-prxy", - 3308: "tns-server", - 3309: "tns-adv", - 3310: "dyna-access", - 3311: "mcns-tel-ret", - 3312: "appman-server", - 3313: "uorb", - 3314: "uohost", - 3315: "cdid", - 3316: "aicc-cmi", - 3317: "vsaiport", - 3318: "ssrip", - 3319: "sdt-lmd", - 3320: "officelink2000", - 3321: "vnsstr", - 3326: "sftu", - 3327: "bbars", - 3328: "egptlm", - 3329: "hp-device-disc", - 3330: "mcs-calypsoicf", - 3331: "mcs-messaging", - 3332: "mcs-mailsvr", - 3333: "dec-notes", - 3334: "directv-web", - 3335: "directv-soft", - 3336: "directv-tick", - 3337: "directv-catlg", - 3338: "anet-b", - 3339: "anet-l", - 3340: "anet-m", - 3341: "anet-h", - 3342: "webtie", - 3343: "ms-cluster-net", - 3344: "bnt-manager", - 3345: "influence", - 3346: "trnsprntproxy", - 3347: "phoenix-rpc", - 3348: "pangolin-laser", - 3349: "chevinservices", - 3350: "findviatv", - 3351: "btrieve", - 3352: "ssql", - 3353: "fatpipe", - 3354: "suitjd", - 3355: "ordinox-dbase", - 3356: "upnotifyps", - 3357: "adtech-test", - 3358: "mpsysrmsvr", - 3359: "wg-netforce", - 3360: "kv-server", - 3361: "kv-agent", - 3362: "dj-ilm", - 3363: "nati-vi-server", - 3364: "creativeserver", - 3365: "contentserver", - 3366: "creativepartnr", - 3372: "tip2", - 3373: "lavenir-lm", - 3374: "cluster-disc", - 3375: "vsnm-agent", - 3376: "cdbroker", - 3377: "cogsys-lm", - 3378: "wsicopy", - 3379: "socorfs", - 3380: "sns-channels", - 3381: "geneous", - 3382: "fujitsu-neat", - 3383: "esp-lm", - 3384: "hp-clic", - 3385: "qnxnetman", - 3386: "gprs-data", - 3387: "backroomnet", - 3388: "cbserver", - 3389: "ms-wbt-server", - 3390: "dsc", - 3391: "savant", - 3392: "efi-lm", - 3393: "d2k-tapestry1", - 3394: "d2k-tapestry2", - 3395: "dyna-lm", - 3396: "printer-agent", - 3397: "cloanto-lm", - 3398: "mercantile", - 3399: "csms", - 3400: "csms2", - 3401: "filecast", - 3402: "fxaengine-net", - 3405: "nokia-ann-ch1", - 3406: "nokia-ann-ch2", - 3407: "ldap-admin", - 3408: "BESApi", - 3409: "networklens", - 3410: "networklenss", - 3411: "biolink-auth", - 3412: "xmlblaster", - 3413: "svnet", - 3414: "wip-port", - 3415: "bcinameservice", - 3416: "commandport", - 3417: "csvr", - 3418: "rnmap", - 3419: "softaudit", - 3420: "ifcp-port", - 3421: "bmap", - 3422: "rusb-sys-port", - 3423: "xtrm", - 3424: "xtrms", - 3425: "agps-port", - 3426: "arkivio", - 3427: "websphere-snmp", - 3428: "twcss", - 3429: "gcsp", - 3430: "ssdispatch", - 3431: "ndl-als", - 3432: "osdcp", - 3433: "opnet-smp", - 3434: "opencm", - 3435: "pacom", - 3436: "gc-config", - 3437: "autocueds", - 3438: "spiral-admin", - 3439: "hri-port", - 3440: "ans-console", - 3441: "connect-client", - 3442: "connect-server", - 3443: "ov-nnm-websrv", - 3444: "denali-server", - 3445: "monp", - 3446: "3comfaxrpc", - 3447: "directnet", - 3448: "dnc-port", - 3449: "hotu-chat", - 3450: "castorproxy", - 3451: "asam", - 3452: "sabp-signal", - 3453: "pscupd", - 3454: "mira", - 3455: "prsvp", - 3456: "vat", - 3457: "vat-control", - 3458: "d3winosfi", - 3459: "integral", - 3460: "edm-manager", - 3461: "edm-stager", - 3462: "edm-std-notify", - 3463: "edm-adm-notify", - 3464: "edm-mgr-sync", - 3465: "edm-mgr-cntrl", - 3466: "workflow", - 3467: "rcst", - 3468: "ttcmremotectrl", - 3469: "pluribus", - 3470: "jt400", - 3471: "jt400-ssl", - 3472: "jaugsremotec-1", - 3473: "jaugsremotec-2", - 3474: "ttntspauto", - 3475: "genisar-port", - 3476: "nppmp", - 3477: "ecomm", - 3478: "stun", - 3479: "twrpc", - 3480: "plethora", - 3481: "cleanerliverc", - 3482: "vulture", - 3483: "slim-devices", - 3484: "gbs-stp", - 3485: "celatalk", - 3486: "ifsf-hb-port", - 3487: "ltctcp", - 3488: "fs-rh-srv", - 3489: "dtp-dia", - 3490: "colubris", - 3491: "swr-port", - 3492: "tvdumtray-port", - 3493: "nut", - 3494: "ibm3494", - 3495: "seclayer-tcp", - 3496: "seclayer-tls", - 3497: "ipether232port", - 3498: "dashpas-port", - 3499: "sccip-media", - 3500: "rtmp-port", - 3501: "isoft-p2p", - 3502: "avinstalldisc", - 3503: "lsp-ping", - 3504: "ironstorm", - 3505: "ccmcomm", - 3506: "apc-3506", - 3507: "nesh-broker", - 3508: "interactionweb", - 3509: "vt-ssl", - 3510: "xss-port", - 3511: "webmail-2", - 3512: "aztec", - 3513: "arcpd", - 3514: "must-p2p", - 3515: "must-backplane", - 3516: "smartcard-port", - 3517: "802-11-iapp", - 3518: "artifact-msg", - 3519: "nvmsgd", - 3520: "galileolog", - 3521: "mc3ss", - 3522: "nssocketport", - 3523: "odeumservlink", - 3524: "ecmport", - 3525: "eisport", - 3526: "starquiz-port", - 3527: "beserver-msg-q", - 3528: "jboss-iiop", - 3529: "jboss-iiop-ssl", - 3530: "gf", - 3531: "joltid", - 3532: "raven-rmp", - 3533: "raven-rdp", - 3534: "urld-port", - 3535: "ms-la", - 3536: "snac", - 3537: "ni-visa-remote", - 3538: "ibm-diradm", - 3539: "ibm-diradm-ssl", - 3540: "pnrp-port", - 3541: "voispeed-port", - 3542: "hacl-monitor", - 3543: "qftest-lookup", - 3544: "teredo", - 3545: "camac", - 3547: "symantec-sim", - 3548: "interworld", - 3549: "tellumat-nms", - 3550: "ssmpp", - 3551: "apcupsd", - 3552: "taserver", - 3553: "rbr-discovery", - 3554: "questnotify", - 3555: "razor", - 3556: "sky-transport", - 3557: "personalos-001", - 3558: "mcp-port", - 3559: "cctv-port", - 3560: "iniserve-port", - 3561: "bmc-onekey", - 3562: "sdbproxy", - 3563: "watcomdebug", - 3564: "esimport", - 3565: "m2pa", - 3566: "quest-data-hub", - 3567: "dof-eps", - 3568: "dof-tunnel-sec", - 3569: "mbg-ctrl", - 3570: "mccwebsvr-port", - 3571: "megardsvr-port", - 3572: "megaregsvrport", - 3573: "tag-ups-1", - 3574: "dmaf-server", - 3575: "ccm-port", - 3576: "cmc-port", - 3577: "config-port", - 3578: "data-port", - 3579: "ttat3lb", - 3580: "nati-svrloc", - 3581: "kfxaclicensing", - 3582: "press", - 3583: "canex-watch", - 3584: "u-dbap", - 3585: "emprise-lls", - 3586: "emprise-lsc", - 3587: "p2pgroup", - 3588: "sentinel", - 3589: "isomair", - 3590: "wv-csp-sms", - 3591: "gtrack-server", - 3592: "gtrack-ne", - 3593: "bpmd", - 3594: "mediaspace", - 3595: "shareapp", - 3596: "iw-mmogame", - 3597: "a14", - 3598: "a15", - 3599: "quasar-server", - 3600: "trap-daemon", - 3601: "visinet-gui", - 3602: "infiniswitchcl", - 3603: "int-rcv-cntrl", - 3604: "bmc-jmx-port", - 3605: "comcam-io", - 3606: "splitlock", - 3607: "precise-i3", - 3608: "trendchip-dcp", - 3609: "cpdi-pidas-cm", - 3610: "echonet", - 3611: "six-degrees", - 3612: "hp-dataprotect", - 3613: "alaris-disc", - 3614: "sigma-port", - 3615: "start-network", - 3616: "cd3o-protocol", - 3617: "sharp-server", - 3618: "aairnet-1", - 3619: "aairnet-2", - 3620: "ep-pcp", - 3621: "ep-nsp", - 3622: "ff-lr-port", - 3623: "haipe-discover", - 3624: "dist-upgrade", - 3625: "volley", - 3626: "bvcdaemon-port", - 3627: "jamserverport", - 3628: "ept-machine", - 3629: "escvpnet", - 3630: "cs-remote-db", - 3631: "cs-services", - 3632: "distcc", - 3633: "wacp", - 3634: "hlibmgr", - 3635: "sdo", - 3636: "servistaitsm", - 3637: "scservp", - 3638: "ehp-backup", - 3639: "xap-ha", - 3640: "netplay-port1", - 3641: "netplay-port2", - 3642: "juxml-port", - 3643: "audiojuggler", - 3644: "ssowatch", - 3645: "cyc", - 3646: "xss-srv-port", - 3647: "splitlock-gw", - 3648: "fjcp", - 3649: "nmmp", - 3650: "prismiq-plugin", - 3651: "xrpc-registry", - 3652: "vxcrnbuport", - 3653: "tsp", - 3654: "vaprtm", - 3655: "abatemgr", - 3656: "abatjss", - 3657: "immedianet-bcn", - 3658: "ps-ams", - 3659: "apple-sasl", - 3660: "can-nds-ssl", - 3661: "can-ferret-ssl", - 3662: "pserver", - 3663: "dtp", - 3664: "ups-engine", - 3665: "ent-engine", - 3666: "eserver-pap", - 3667: "infoexch", - 3668: "dell-rm-port", - 3669: "casanswmgmt", - 3670: "smile", - 3671: "efcp", - 3672: "lispworks-orb", - 3673: "mediavault-gui", - 3674: "wininstall-ipc", - 3675: "calltrax", - 3676: "va-pacbase", - 3677: "roverlog", - 3678: "ipr-dglt", - 3679: "Escale (Newton Dock)", - 3680: "npds-tracker", - 3681: "bts-x73", - 3682: "cas-mapi", - 3683: "bmc-ea", - 3684: "faxstfx-port", - 3685: "dsx-agent", - 3686: "tnmpv2", - 3687: "simple-push", - 3688: "simple-push-s", - 3689: "daap", - 3690: "svn", - 3691: "magaya-network", - 3692: "intelsync", - 3693: "easl", - 3695: "bmc-data-coll", - 3696: "telnetcpcd", - 3697: "nw-license", - 3698: "sagectlpanel", - 3699: "kpn-icw", - 3700: "lrs-paging", - 3701: "netcelera", - 3702: "ws-discovery", - 3703: "adobeserver-3", - 3704: "adobeserver-4", - 3705: "adobeserver-5", - 3706: "rt-event", - 3707: "rt-event-s", - 3708: "sun-as-iiops", - 3709: "ca-idms", - 3710: "portgate-auth", - 3711: "edb-server2", - 3712: "sentinel-ent", - 3713: "tftps", - 3714: "delos-dms", - 3715: "anoto-rendezv", - 3716: "wv-csp-sms-cir", - 3717: "wv-csp-udp-cir", - 3718: "opus-services", - 3719: "itelserverport", - 3720: "ufastro-instr", - 3721: "xsync", - 3722: "xserveraid", - 3723: "sychrond", - 3724: "blizwow", - 3725: "na-er-tip", - 3726: "array-manager", - 3727: "e-mdu", - 3728: "e-woa", - 3729: "fksp-audit", - 3730: "client-ctrl", - 3731: "smap", - 3732: "m-wnn", - 3733: "multip-msg", - 3734: "synel-data", - 3735: "pwdis", - 3736: "rs-rmi", - 3737: "xpanel", - 3738: "versatalk", - 3739: "launchbird-lm", - 3740: "heartbeat", - 3741: "wysdma", - 3742: "cst-port", - 3743: "ipcs-command", - 3744: "sasg", - 3745: "gw-call-port", - 3746: "linktest", - 3747: "linktest-s", - 3748: "webdata", - 3749: "cimtrak", - 3750: "cbos-ip-port", - 3751: "gprs-cube", - 3752: "vipremoteagent", - 3753: "nattyserver", - 3754: "timestenbroker", - 3755: "sas-remote-hlp", - 3756: "canon-capt", - 3757: "grf-port", - 3758: "apw-registry", - 3759: "exapt-lmgr", - 3760: "adtempusclient", - 3761: "gsakmp", - 3762: "gbs-smp", - 3763: "xo-wave", - 3764: "mni-prot-rout", - 3765: "rtraceroute", - 3766: "sitewatch-s", - 3767: "listmgr-port", - 3768: "rblcheckd", - 3769: "haipe-otnk", - 3770: "cindycollab", - 3771: "paging-port", - 3772: "ctp", - 3773: "ctdhercules", - 3774: "zicom", - 3775: "ispmmgr", - 3776: "dvcprov-port", - 3777: "jibe-eb", - 3778: "c-h-it-port", - 3779: "cognima", - 3780: "nnp", - 3781: "abcvoice-port", - 3782: "iso-tp0s", - 3783: "bim-pem", - 3784: "bfd-control", - 3785: "bfd-echo", - 3786: "upstriggervsw", - 3787: "fintrx", - 3788: "isrp-port", - 3789: "remotedeploy", - 3790: "quickbooksrds", - 3791: "tvnetworkvideo", - 3792: "sitewatch", - 3793: "dcsoftware", - 3794: "jaus", - 3795: "myblast", - 3796: "spw-dialer", - 3797: "idps", - 3798: "minilock", - 3799: "radius-dynauth", - 3800: "pwgpsi", - 3801: "ibm-mgr", - 3802: "vhd", - 3803: "soniqsync", - 3804: "iqnet-port", - 3805: "tcpdataserver", - 3806: "wsmlb", - 3807: "spugna", - 3808: "sun-as-iiops-ca", - 3809: "apocd", - 3810: "wlanauth", - 3811: "amp", - 3812: "neto-wol-server", - 3813: "rap-ip", - 3814: "neto-dcs", - 3815: "lansurveyorxml", - 3816: "sunlps-http", - 3817: "tapeware", - 3818: "crinis-hb", - 3819: "epl-slp", - 3820: "scp", - 3821: "pmcp", - 3822: "acp-discovery", - 3823: "acp-conduit", - 3824: "acp-policy", - 3825: "ffserver", - 3826: "warmux", - 3827: "netmpi", - 3828: "neteh", - 3829: "neteh-ext", - 3830: "cernsysmgmtagt", - 3831: "dvapps", - 3832: "xxnetserver", - 3833: "aipn-auth", - 3834: "spectardata", - 3835: "spectardb", - 3836: "markem-dcp", - 3837: "mkm-discovery", - 3838: "sos", - 3839: "amx-rms", - 3840: "flirtmitmir", - 3841: "shiprush-db-svr", - 3842: "nhci", - 3843: "quest-agent", - 3844: "rnm", - 3845: "v-one-spp", - 3846: "an-pcp", - 3847: "msfw-control", - 3848: "item", - 3849: "spw-dnspreload", - 3850: "qtms-bootstrap", - 3851: "spectraport", - 3852: "sse-app-config", - 3853: "sscan", - 3854: "stryker-com", - 3855: "opentrac", - 3856: "informer", - 3857: "trap-port", - 3858: "trap-port-mom", - 3859: "nav-port", - 3860: "sasp", - 3861: "winshadow-hd", - 3862: "giga-pocket", - 3863: "asap-tcp", - 3864: "asap-tcp-tls", - 3865: "xpl", - 3866: "dzdaemon", - 3867: "dzoglserver", - 3868: "diameter", - 3869: "ovsam-mgmt", - 3870: "ovsam-d-agent", - 3871: "avocent-adsap", - 3872: "oem-agent", - 3873: "fagordnc", - 3874: "sixxsconfig", - 3875: "pnbscada", - 3876: "dl-agent", - 3877: "xmpcr-interface", - 3878: "fotogcad", - 3879: "appss-lm", - 3880: "igrs", - 3881: "idac", - 3882: "msdts1", - 3883: "vrpn", - 3884: "softrack-meter", - 3885: "topflow-ssl", - 3886: "nei-management", - 3887: "ciphire-data", - 3888: "ciphire-serv", - 3889: "dandv-tester", - 3890: "ndsconnect", - 3891: "rtc-pm-port", - 3892: "pcc-image-port", - 3893: "cgi-starapi", - 3894: "syam-agent", - 3895: "syam-smc", - 3896: "sdo-tls", - 3897: "sdo-ssh", - 3898: "senip", - 3899: "itv-control", - 3900: "udt-os", - 3901: "nimsh", - 3902: "nimaux", - 3903: "charsetmgr", - 3904: "omnilink-port", - 3905: "mupdate", - 3906: "topovista-data", - 3907: "imoguia-port", - 3908: "hppronetman", - 3909: "surfcontrolcpa", - 3910: "prnrequest", - 3911: "prnstatus", - 3912: "gbmt-stars", - 3913: "listcrt-port", - 3914: "listcrt-port-2", - 3915: "agcat", - 3916: "wysdmc", - 3917: "aftmux", - 3918: "pktcablemmcops", - 3919: "hyperip", - 3920: "exasoftport1", - 3921: "herodotus-net", - 3922: "sor-update", - 3923: "symb-sb-port", - 3924: "mpl-gprs-port", - 3925: "zmp", - 3926: "winport", - 3927: "natdataservice", - 3928: "netboot-pxe", - 3929: "smauth-port", - 3930: "syam-webserver", - 3931: "msr-plugin-port", - 3932: "dyn-site", - 3933: "plbserve-port", - 3934: "sunfm-port", - 3935: "sdp-portmapper", - 3936: "mailprox", - 3937: "dvbservdsc", - 3938: "dbcontrol-agent", - 3939: "aamp", - 3940: "xecp-node", - 3941: "homeportal-web", - 3942: "srdp", - 3943: "tig", - 3944: "sops", - 3945: "emcads", - 3946: "backupedge", - 3947: "ccp", - 3948: "apdap", - 3949: "drip", - 3950: "namemunge", - 3951: "pwgippfax", - 3952: "i3-sessionmgr", - 3953: "xmlink-connect", - 3954: "adrep", - 3955: "p2pcommunity", - 3956: "gvcp", - 3957: "mqe-broker", - 3958: "mqe-agent", - 3959: "treehopper", - 3960: "bess", - 3961: "proaxess", - 3962: "sbi-agent", - 3963: "thrp", - 3964: "sasggprs", - 3965: "ati-ip-to-ncpe", - 3966: "bflckmgr", - 3967: "ppsms", - 3968: "ianywhere-dbns", - 3969: "landmarks", - 3970: "lanrevagent", - 3971: "lanrevserver", - 3972: "iconp", - 3973: "progistics", - 3974: "citysearch", - 3975: "airshot", - 3976: "opswagent", - 3977: "opswmanager", - 3978: "secure-cfg-svr", - 3979: "smwan", - 3980: "acms", - 3981: "starfish", - 3982: "eis", - 3983: "eisp", - 3984: "mapper-nodemgr", - 3985: "mapper-mapethd", - 3986: "mapper-ws-ethd", - 3987: "centerline", - 3988: "dcs-config", - 3989: "bv-queryengine", - 3990: "bv-is", - 3991: "bv-smcsrv", - 3992: "bv-ds", - 3993: "bv-agent", - 3995: "iss-mgmt-ssl", - 3996: "abcsoftware", - 3997: "agentsease-db", - 3998: "dnx", - 3999: "nvcnet", - 4000: "terabase", - 4001: "newoak", - 4002: "pxc-spvr-ft", - 4003: "pxc-splr-ft", - 4004: "pxc-roid", - 4005: "pxc-pin", - 4006: "pxc-spvr", - 4007: "pxc-splr", - 4008: "netcheque", - 4009: "chimera-hwm", - 4010: "samsung-unidex", - 4011: "altserviceboot", - 4012: "pda-gate", - 4013: "acl-manager", - 4014: "taiclock", - 4015: "talarian-mcast1", - 4016: "talarian-mcast2", - 4017: "talarian-mcast3", - 4018: "talarian-mcast4", - 4019: "talarian-mcast5", - 4020: "trap", - 4021: "nexus-portal", - 4022: "dnox", - 4023: "esnm-zoning", - 4024: "tnp1-port", - 4025: "partimage", - 4026: "as-debug", - 4027: "bxp", - 4028: "dtserver-port", - 4029: "ip-qsig", - 4030: "jdmn-port", - 4031: "suucp", - 4032: "vrts-auth-port", - 4033: "sanavigator", - 4034: "ubxd", - 4035: "wap-push-http", - 4036: "wap-push-https", - 4037: "ravehd", - 4038: "fazzt-ptp", - 4039: "fazzt-admin", - 4040: "yo-main", - 4041: "houston", - 4042: "ldxp", - 4043: "nirp", - 4044: "ltp", - 4045: "npp", - 4046: "acp-proto", - 4047: "ctp-state", - 4049: "wafs", - 4050: "cisco-wafs", - 4051: "cppdp", - 4052: "interact", - 4053: "ccu-comm-1", - 4054: "ccu-comm-2", - 4055: "ccu-comm-3", - 4056: "lms", - 4057: "wfm", - 4058: "kingfisher", - 4059: "dlms-cosem", - 4060: "dsmeter-iatc", - 4061: "ice-location", - 4062: "ice-slocation", - 4063: "ice-router", - 4064: "ice-srouter", - 4065: "avanti-cdp", - 4066: "pmas", - 4067: "idp", - 4068: "ipfltbcst", - 4069: "minger", - 4070: "tripe", - 4071: "aibkup", - 4072: "zieto-sock", - 4073: "iRAPP", - 4074: "cequint-cityid", - 4075: "perimlan", - 4076: "seraph", - 4078: "cssp", - 4079: "santools", - 4080: "lorica-in", - 4081: "lorica-in-sec", - 4082: "lorica-out", - 4083: "lorica-out-sec", - 4085: "ezmessagesrv", - 4087: "applusservice", - 4088: "npsp", - 4089: "opencore", - 4090: "omasgport", - 4091: "ewinstaller", - 4092: "ewdgs", - 4093: "pvxpluscs", - 4094: "sysrqd", - 4095: "xtgui", - 4096: "bre", - 4097: "patrolview", - 4098: "drmsfsd", - 4099: "dpcp", - 4100: "igo-incognito", - 4101: "brlp-0", - 4102: "brlp-1", - 4103: "brlp-2", - 4104: "brlp-3", - 4105: "shofar", - 4106: "synchronite", - 4107: "j-ac", - 4108: "accel", - 4109: "izm", - 4110: "g2tag", - 4111: "xgrid", - 4112: "apple-vpns-rp", - 4113: "aipn-reg", - 4114: "jomamqmonitor", - 4115: "cds", - 4116: "smartcard-tls", - 4117: "hillrserv", - 4118: "netscript", - 4119: "assuria-slm", - 4120: "minirem", - 4121: "e-builder", - 4122: "fprams", - 4123: "z-wave", - 4124: "tigv2", - 4125: "opsview-envoy", - 4126: "ddrepl", - 4127: "unikeypro", - 4128: "nufw", - 4129: "nuauth", - 4130: "fronet", - 4131: "stars", - 4132: "nuts-dem", - 4133: "nuts-bootp", - 4134: "nifty-hmi", - 4135: "cl-db-attach", - 4136: "cl-db-request", - 4137: "cl-db-remote", - 4138: "nettest", - 4139: "thrtx", - 4140: "cedros-fds", - 4141: "oirtgsvc", - 4142: "oidocsvc", - 4143: "oidsr", - 4145: "vvr-control", - 4146: "tgcconnect", - 4147: "vrxpservman", - 4148: "hhb-handheld", - 4149: "agslb", - 4150: "PowerAlert-nsa", - 4151: "menandmice-noh", - 4152: "idig-mux", - 4153: "mbl-battd", - 4154: "atlinks", - 4155: "bzr", - 4156: "stat-results", - 4157: "stat-scanner", - 4158: "stat-cc", - 4159: "nss", - 4160: "jini-discovery", - 4161: "omscontact", - 4162: "omstopology", - 4163: "silverpeakpeer", - 4164: "silverpeakcomm", - 4165: "altcp", - 4166: "joost", - 4167: "ddgn", - 4168: "pslicser", - 4169: "iadt", - 4170: "d-cinema-csp", - 4171: "ml-svnet", - 4172: "pcoip", - 4174: "smcluster", - 4175: "bccp", - 4176: "tl-ipcproxy", - 4177: "wello", - 4178: "storman", - 4179: "MaxumSP", - 4180: "httpx", - 4181: "macbak", - 4182: "pcptcpservice", - 4183: "cyborgnet", - 4184: "universe-suite", - 4185: "wcpp", - 4186: "boxbackupstore", - 4187: "csc-proxy", - 4188: "vatata", - 4189: "pcep", - 4190: "sieve", - 4192: "azeti", - 4193: "pvxplusio", - 4197: "hctl", - 4199: "eims-admin", - 4300: "corelccam", - 4301: "d-data", - 4302: "d-data-control", - 4303: "srcp", - 4304: "owserver", - 4305: "batman", - 4306: "pinghgl", - 4307: "trueconf", - 4308: "compx-lockview", - 4309: "dserver", - 4310: "mirrtex", - 4311: "p6ssmc", - 4312: "pscl-mgt", - 4313: "perrla", - 4314: "choiceview-agt", - 4316: "choiceview-clt", - 4320: "fdt-rcatp", - 4321: "rwhois", - 4322: "trim-event", - 4323: "trim-ice", - 4325: "geognosisman", - 4326: "geognosis", - 4327: "jaxer-web", - 4328: "jaxer-manager", - 4329: "publiqare-sync", - 4330: "dey-sapi", - 4331: "ktickets-rest", - 4333: "ahsp", - 4334: "netconf-ch-ssh", - 4335: "netconf-ch-tls", - 4336: "restconf-ch-tls", - 4340: "gaia", - 4341: "lisp-data", - 4342: "lisp-cons", - 4343: "unicall", - 4344: "vinainstall", - 4345: "m4-network-as", - 4346: "elanlm", - 4347: "lansurveyor", - 4348: "itose", - 4349: "fsportmap", - 4350: "net-device", - 4351: "plcy-net-svcs", - 4352: "pjlink", - 4353: "f5-iquery", - 4354: "qsnet-trans", - 4355: "qsnet-workst", - 4356: "qsnet-assist", - 4357: "qsnet-cond", - 4358: "qsnet-nucl", - 4359: "omabcastltkm", - 4360: "matrix-vnet", - 4368: "wxbrief", - 4369: "epmd", - 4370: "elpro-tunnel", - 4371: "l2c-control", - 4372: "l2c-data", - 4373: "remctl", - 4374: "psi-ptt", - 4375: "tolteces", - 4376: "bip", - 4377: "cp-spxsvr", - 4378: "cp-spxdpy", - 4379: "ctdb", - 4389: "xandros-cms", - 4390: "wiegand", - 4391: "apwi-imserver", - 4392: "apwi-rxserver", - 4393: "apwi-rxspooler", - 4395: "omnivisionesx", - 4396: "fly", - 4400: "ds-srv", - 4401: "ds-srvr", - 4402: "ds-clnt", - 4403: "ds-user", - 4404: "ds-admin", - 4405: "ds-mail", - 4406: "ds-slp", - 4407: "nacagent", - 4408: "slscc", - 4409: "netcabinet-com", - 4410: "itwo-server", - 4411: "found", - 4413: "avi-nms", - 4414: "updog", - 4415: "brcd-vr-req", - 4416: "pjj-player", - 4417: "workflowdir", - 4419: "cbp", - 4420: "nvm-express", - 4421: "scaleft", - 4422: "tsepisp", - 4423: "thingkit", - 4425: "netrockey6", - 4426: "beacon-port-2", - 4427: "drizzle", - 4428: "omviserver", - 4429: "omviagent", - 4430: "rsqlserver", - 4431: "wspipe", - 4432: "l-acoustics", - 4433: "vop", - 4442: "saris", - 4443: "pharos", - 4444: "krb524", - 4445: "upnotifyp", - 4446: "n1-fwp", - 4447: "n1-rmgmt", - 4448: "asc-slmd", - 4449: "privatewire", - 4450: "camp", - 4451: "ctisystemmsg", - 4452: "ctiprogramload", - 4453: "nssalertmgr", - 4454: "nssagentmgr", - 4455: "prchat-user", - 4456: "prchat-server", - 4457: "prRegister", - 4458: "mcp", - 4484: "hpssmgmt", - 4485: "assyst-dr", - 4486: "icms", - 4487: "prex-tcp", - 4488: "awacs-ice", - 4500: "ipsec-nat-t", - 4535: "ehs", - 4536: "ehs-ssl", - 4537: "wssauthsvc", - 4538: "swx-gate", - 4545: "worldscores", - 4546: "sf-lm", - 4547: "lanner-lm", - 4548: "synchromesh", - 4549: "aegate", - 4550: "gds-adppiw-db", - 4551: "ieee-mih", - 4552: "menandmice-mon", - 4553: "icshostsvc", - 4554: "msfrs", - 4555: "rsip", - 4556: "dtn-bundle", - 4559: "hylafax", - 4563: "amahi-anywhere", - 4566: "kwtc", - 4567: "tram", - 4568: "bmc-reporting", - 4569: "iax", - 4570: "deploymentmap", - 4573: "cardifftec-back", - 4590: "rid", - 4591: "l3t-at-an", - 4593: "ipt-anri-anri", - 4594: "ias-session", - 4595: "ias-paging", - 4596: "ias-neighbor", - 4597: "a21-an-1xbs", - 4598: "a16-an-an", - 4599: "a17-an-an", - 4600: "piranha1", - 4601: "piranha2", - 4602: "mtsserver", - 4603: "menandmice-upg", - 4604: "irp", - 4605: "sixchat", - 4658: "playsta2-app", - 4659: "playsta2-lob", - 4660: "smaclmgr", - 4661: "kar2ouche", - 4662: "oms", - 4663: "noteit", - 4664: "ems", - 4665: "contclientms", - 4666: "eportcomm", - 4667: "mmacomm", - 4668: "mmaeds", - 4669: "eportcommdata", - 4670: "light", - 4671: "acter", - 4672: "rfa", - 4673: "cxws", - 4674: "appiq-mgmt", - 4675: "dhct-status", - 4676: "dhct-alerts", - 4677: "bcs", - 4678: "traversal", - 4679: "mgesupervision", - 4680: "mgemanagement", - 4681: "parliant", - 4682: "finisar", - 4683: "spike", - 4684: "rfid-rp1", - 4685: "autopac", - 4686: "msp-os", - 4687: "nst", - 4688: "mobile-p2p", - 4689: "altovacentral", - 4690: "prelude", - 4691: "mtn", - 4692: "conspiracy", - 4700: "netxms-agent", - 4701: "netxms-mgmt", - 4702: "netxms-sync", - 4703: "npqes-test", - 4704: "assuria-ins", - 4711: "trinity-dist", - 4725: "truckstar", - 4727: "fcis", - 4728: "capmux", - 4730: "gearman", - 4731: "remcap", - 4733: "resorcs", - 4737: "ipdr-sp", - 4738: "solera-lpn", - 4739: "ipfix", - 4740: "ipfixs", - 4741: "lumimgrd", - 4742: "sicct", - 4743: "openhpid", - 4744: "ifsp", - 4745: "fmp", - 4749: "profilemac", - 4750: "ssad", - 4751: "spocp", - 4752: "snap", - 4753: "simon", - 4756: "RDCenter", - 4774: "converge", - 4784: "bfd-multi-ctl", - 4786: "smart-install", - 4787: "sia-ctrl-plane", - 4788: "xmcp", - 4800: "iims", - 4801: "iwec", - 4802: "ilss", - 4803: "notateit", - 4827: "htcp", - 4837: "varadero-0", - 4838: "varadero-1", - 4839: "varadero-2", - 4840: "opcua-tcp", - 4841: "quosa", - 4842: "gw-asv", - 4843: "opcua-tls", - 4844: "gw-log", - 4845: "wcr-remlib", - 4846: "contamac-icm", - 4847: "wfc", - 4848: "appserv-http", - 4849: "appserv-https", - 4850: "sun-as-nodeagt", - 4851: "derby-repli", - 4867: "unify-debug", - 4868: "phrelay", - 4869: "phrelaydbg", - 4870: "cc-tracking", - 4871: "wired", - 4876: "tritium-can", - 4877: "lmcs", - 4879: "wsdl-event", - 4880: "hislip", - 4883: "wmlserver", - 4884: "hivestor", - 4885: "abbs", - 4894: "lyskom", - 4899: "radmin-port", - 4900: "hfcs", - 4901: "flr-agent", - 4902: "magiccontrol", - 4912: "lutap", - 4913: "lutcp", - 4914: "bones", - 4915: "frcs", - 4940: "eq-office-4940", - 4941: "eq-office-4941", - 4942: "eq-office-4942", - 4949: "munin", - 4950: "sybasesrvmon", - 4951: "pwgwims", - 4952: "sagxtsds", - 4953: "dbsyncarbiter", - 4969: "ccss-qmm", - 4970: "ccss-qsm", - 4971: "burp", - 4984: "webyast", - 4985: "gerhcs", - 4986: "mrip", - 4987: "smar-se-port1", - 4988: "smar-se-port2", - 4989: "parallel", - 4990: "busycal", - 4991: "vrt", - 4999: "hfcs-manager", - 5000: "commplex-main", - 5001: "commplex-link", - 5002: "rfe", - 5003: "fmpro-internal", - 5004: "avt-profile-1", - 5005: "avt-profile-2", - 5006: "wsm-server", - 5007: "wsm-server-ssl", - 5008: "synapsis-edge", - 5009: "winfs", - 5010: "telelpathstart", - 5011: "telelpathattack", - 5012: "nsp", - 5013: "fmpro-v6", - 5015: "fmwp", - 5020: "zenginkyo-1", - 5021: "zenginkyo-2", - 5022: "mice", - 5023: "htuilsrv", - 5024: "scpi-telnet", - 5025: "scpi-raw", - 5026: "strexec-d", - 5027: "strexec-s", - 5028: "qvr", - 5029: "infobright", - 5030: "surfpass", - 5032: "signacert-agent", - 5033: "jtnetd-server", - 5034: "jtnetd-status", - 5042: "asnaacceler8db", - 5043: "swxadmin", - 5044: "lxi-evntsvc", - 5045: "osp", - 5048: "texai", - 5049: "ivocalize", - 5050: "mmcc", - 5051: "ita-agent", - 5052: "ita-manager", - 5053: "rlm", - 5054: "rlm-admin", - 5055: "unot", - 5056: "intecom-ps1", - 5057: "intecom-ps2", - 5059: "sds", - 5060: "sip", - 5061: "sips", - 5062: "na-localise", - 5063: "csrpc", - 5064: "ca-1", - 5065: "ca-2", - 5066: "stanag-5066", - 5067: "authentx", - 5068: "bitforestsrv", - 5069: "i-net-2000-npr", - 5070: "vtsas", - 5071: "powerschool", - 5072: "ayiya", - 5073: "tag-pm", - 5074: "alesquery", - 5075: "pvaccess", - 5080: "onscreen", - 5081: "sdl-ets", - 5082: "qcp", - 5083: "qfp", - 5084: "llrp", - 5085: "encrypted-llrp", - 5086: "aprigo-cs", - 5087: "biotic", - 5093: "sentinel-lm", - 5094: "hart-ip", - 5099: "sentlm-srv2srv", - 5100: "socalia", - 5101: "talarian-tcp", - 5102: "oms-nonsecure", - 5103: "actifio-c2c", - 5106: "actifioudsagent", - 5107: "actifioreplic", - 5111: "taep-as-svc", - 5112: "pm-cmdsvr", - 5114: "ev-services", - 5115: "autobuild", - 5117: "gradecam", - 5120: "barracuda-bbs", - 5133: "nbt-pc", - 5134: "ppactivation", - 5135: "erp-scale", - 5137: "ctsd", - 5145: "rmonitor-secure", - 5146: "social-alarm", - 5150: "atmp", - 5151: "esri-sde", - 5152: "sde-discovery", - 5153: "toruxserver", - 5154: "bzflag", - 5155: "asctrl-agent", - 5156: "rugameonline", - 5157: "mediat", - 5161: "snmpssh", - 5162: "snmpssh-trap", - 5163: "sbackup", - 5164: "vpa", - 5165: "ife-icorp", - 5166: "winpcs", - 5167: "scte104", - 5168: "scte30", - 5172: "pcoip-mgmt", - 5190: "aol", - 5191: "aol-1", - 5192: "aol-2", - 5193: "aol-3", - 5194: "cpscomm", - 5195: "ampl-lic", - 5196: "ampl-tableproxy", - 5197: "tunstall-lwp", - 5200: "targus-getdata", - 5201: "targus-getdata1", - 5202: "targus-getdata2", - 5203: "targus-getdata3", - 5209: "nomad", - 5215: "noteza", - 5221: "3exmp", - 5222: "xmpp-client", - 5223: "hpvirtgrp", - 5224: "hpvirtctrl", - 5225: "hp-server", - 5226: "hp-status", - 5227: "perfd", - 5228: "hpvroom", - 5229: "jaxflow", - 5230: "jaxflow-data", - 5231: "crusecontrol", - 5232: "csedaemon", - 5233: "enfs", - 5234: "eenet", - 5235: "galaxy-network", - 5236: "padl2sim", - 5237: "mnet-discovery", - 5245: "downtools", - 5248: "caacws", - 5249: "caaclang2", - 5250: "soagateway", - 5251: "caevms", - 5252: "movaz-ssc", - 5253: "kpdp", - 5254: "logcabin", - 5264: "3com-njack-1", - 5265: "3com-njack-2", - 5269: "xmpp-server", - 5270: "cartographerxmp", - 5271: "cuelink", - 5272: "pk", - 5280: "xmpp-bosh", - 5281: "undo-lm", - 5282: "transmit-port", - 5298: "presence", - 5299: "nlg-data", - 5300: "hacl-hb", - 5301: "hacl-gs", - 5302: "hacl-cfg", - 5303: "hacl-probe", - 5304: "hacl-local", - 5305: "hacl-test", - 5306: "sun-mc-grp", - 5307: "sco-aip", - 5308: "cfengine", - 5309: "jprinter", - 5310: "outlaws", - 5312: "permabit-cs", - 5313: "rrdp", - 5314: "opalis-rbt-ipc", - 5315: "hacl-poll", - 5316: "hpbladems", - 5317: "hpdevms", - 5318: "pkix-cmc", - 5320: "bsfserver-zn", - 5321: "bsfsvr-zn-ssl", - 5343: "kfserver", - 5344: "xkotodrcp", - 5349: "stuns", - 5352: "dns-llq", - 5353: "mdns", - 5354: "mdnsresponder", - 5355: "llmnr", - 5356: "ms-smlbiz", - 5357: "wsdapi", - 5358: "wsdapi-s", - 5359: "ms-alerter", - 5360: "ms-sideshow", - 5361: "ms-s-sideshow", - 5362: "serverwsd2", - 5363: "net-projection", - 5397: "stresstester", - 5398: "elektron-admin", - 5399: "securitychase", - 5400: "excerpt", - 5401: "excerpts", - 5402: "mftp", - 5403: "hpoms-ci-lstn", - 5404: "hpoms-dps-lstn", - 5405: "netsupport", - 5406: "systemics-sox", - 5407: "foresyte-clear", - 5408: "foresyte-sec", - 5409: "salient-dtasrv", - 5410: "salient-usrmgr", - 5411: "actnet", - 5412: "continuus", - 5413: "wwiotalk", - 5414: "statusd", - 5415: "ns-server", - 5416: "sns-gateway", - 5417: "sns-agent", - 5418: "mcntp", - 5419: "dj-ice", - 5420: "cylink-c", - 5421: "netsupport2", - 5422: "salient-mux", - 5423: "virtualuser", - 5424: "beyond-remote", - 5425: "br-channel", - 5426: "devbasic", - 5427: "sco-peer-tta", - 5428: "telaconsole", - 5429: "base", - 5430: "radec-corp", - 5431: "park-agent", - 5432: "postgresql", - 5433: "pyrrho", - 5434: "sgi-arrayd", - 5435: "sceanics", - 5443: "spss", - 5445: "smbdirect", - 5450: "tiepie", - 5453: "surebox", - 5454: "apc-5454", - 5455: "apc-5455", - 5456: "apc-5456", - 5461: "silkmeter", - 5462: "ttl-publisher", - 5463: "ttlpriceproxy", - 5464: "quailnet", - 5465: "netops-broker", - 5470: "apsolab-col", - 5471: "apsolab-cols", - 5472: "apsolab-tag", - 5473: "apsolab-tags", - 5475: "apsolab-data", - 5500: "fcp-addr-srvr1", - 5501: "fcp-addr-srvr2", - 5502: "fcp-srvr-inst1", - 5503: "fcp-srvr-inst2", - 5504: "fcp-cics-gw1", - 5505: "checkoutdb", - 5506: "amc", - 5507: "psl-management", - 5550: "cbus", - 5553: "sgi-eventmond", - 5554: "sgi-esphttp", - 5555: "personal-agent", - 5556: "freeciv", - 5557: "farenet", - 5565: "hpe-dp-bura", - 5566: "westec-connect", - 5567: "dof-dps-mc-sec", - 5568: "sdt", - 5569: "rdmnet-ctrl", - 5573: "sdmmp", - 5574: "lsi-bobcat", - 5575: "ora-oap", - 5579: "fdtracks", - 5580: "tmosms0", - 5581: "tmosms1", - 5582: "fac-restore", - 5583: "tmo-icon-sync", - 5584: "bis-web", - 5585: "bis-sync", - 5586: "att-mt-sms", - 5597: "ininmessaging", - 5598: "mctfeed", - 5599: "esinstall", - 5600: "esmmanager", - 5601: "esmagent", - 5602: "a1-msc", - 5603: "a1-bs", - 5604: "a3-sdunode", - 5605: "a4-sdunode", - 5618: "efr", - 5627: "ninaf", - 5628: "htrust", - 5629: "symantec-sfdb", - 5630: "precise-comm", - 5631: "pcanywheredata", - 5632: "pcanywherestat", - 5633: "beorl", - 5634: "xprtld", - 5635: "sfmsso", - 5636: "sfm-db-server", - 5637: "cssc", - 5638: "flcrs", - 5639: "ics", - 5646: "vfmobile", - 5666: "nrpe", - 5670: "filemq", - 5671: "amqps", - 5672: "amqp", - 5673: "jms", - 5674: "hyperscsi-port", - 5675: "v5ua", - 5676: "raadmin", - 5677: "questdb2-lnchr", - 5678: "rrac", - 5679: "dccm", - 5680: "auriga-router", - 5681: "ncxcp", - 5688: "ggz", - 5689: "qmvideo", - 5693: "rbsystem", - 5696: "kmip", - 5700: "supportassist", - 5705: "storageos", - 5713: "proshareaudio", - 5714: "prosharevideo", - 5715: "prosharedata", - 5716: "prosharerequest", - 5717: "prosharenotify", - 5718: "dpm", - 5719: "dpm-agent", - 5720: "ms-licensing", - 5721: "dtpt", - 5722: "msdfsr", - 5723: "omhs", - 5724: "omsdk", - 5725: "ms-ilm", - 5726: "ms-ilm-sts", - 5727: "asgenf", - 5728: "io-dist-data", - 5729: "openmail", - 5730: "unieng", - 5741: "ida-discover1", - 5742: "ida-discover2", - 5743: "watchdoc-pod", - 5744: "watchdoc", - 5745: "fcopy-server", - 5746: "fcopys-server", - 5747: "tunatic", - 5748: "tunalyzer", - 5750: "rscd", - 5755: "openmailg", - 5757: "x500ms", - 5766: "openmailns", - 5767: "s-openmail", - 5768: "openmailpxy", - 5769: "spramsca", - 5770: "spramsd", - 5771: "netagent", - 5777: "dali-port", - 5780: "vts-rpc", - 5781: "3par-evts", - 5782: "3par-mgmt", - 5783: "3par-mgmt-ssl", - 5785: "3par-rcopy", - 5793: "xtreamx", - 5813: "icmpd", - 5814: "spt-automation", - 5841: "shiprush-d-ch", - 5842: "reversion", - 5859: "wherehoo", - 5863: "ppsuitemsg", - 5868: "diameters", - 5883: "jute", - 5900: "rfb", - 5910: "cm", - 5911: "cpdlc", - 5912: "fis", - 5913: "ads-c", - 5963: "indy", - 5968: "mppolicy-v5", - 5969: "mppolicy-mgr", - 5984: "couchdb", - 5985: "wsman", - 5986: "wsmans", - 5987: "wbem-rmi", - 5988: "wbem-http", - 5989: "wbem-https", - 5990: "wbem-exp-https", - 5991: "nuxsl", - 5992: "consul-insight", - 5993: "cim-rs", - 5999: "cvsup", - 6064: "ndl-ahp-svc", - 6065: "winpharaoh", - 6066: "ewctsp", - 6068: "gsmp-ancp", - 6069: "trip", - 6070: "messageasap", - 6071: "ssdtp", - 6072: "diagnose-proc", - 6073: "directplay8", - 6074: "max", - 6075: "dpm-acm", - 6076: "msft-dpm-cert", - 6077: "iconstructsrv", - 6084: "reload-config", - 6085: "konspire2b", - 6086: "pdtp", - 6087: "ldss", - 6088: "doglms", - 6099: "raxa-mgmt", - 6100: "synchronet-db", - 6101: "synchronet-rtc", - 6102: "synchronet-upd", - 6103: "rets", - 6104: "dbdb", - 6105: "primaserver", - 6106: "mpsserver", - 6107: "etc-control", - 6108: "sercomm-scadmin", - 6109: "globecast-id", - 6110: "softcm", - 6111: "spc", - 6112: "dtspcd", - 6113: "dayliteserver", - 6114: "wrspice", - 6115: "xic", - 6116: "xtlserv", - 6117: "daylitetouch", - 6121: "spdy", - 6122: "bex-webadmin", - 6123: "backup-express", - 6124: "pnbs", - 6130: "damewaremobgtwy", - 6133: "nbt-wol", - 6140: "pulsonixnls", - 6141: "meta-corp", - 6142: "aspentec-lm", - 6143: "watershed-lm", - 6144: "statsci1-lm", - 6145: "statsci2-lm", - 6146: "lonewolf-lm", - 6147: "montage-lm", - 6148: "ricardo-lm", - 6149: "tal-pod", - 6159: "efb-aci", - 6160: "ecmp", - 6161: "patrol-ism", - 6162: "patrol-coll", - 6163: "pscribe", - 6200: "lm-x", - 6209: "qmtps", - 6222: "radmind", - 6241: "jeol-nsdtp-1", - 6242: "jeol-nsdtp-2", - 6243: "jeol-nsdtp-3", - 6244: "jeol-nsdtp-4", - 6251: "tl1-raw-ssl", - 6252: "tl1-ssh", - 6253: "crip", - 6267: "gld", - 6268: "grid", - 6269: "grid-alt", - 6300: "bmc-grx", - 6301: "bmc-ctd-ldap", - 6306: "ufmp", - 6315: "scup", - 6316: "abb-escp", - 6317: "nav-data-cmd", - 6320: "repsvc", - 6321: "emp-server1", - 6322: "emp-server2", - 6324: "hrd-ncs", - 6325: "dt-mgmtsvc", - 6326: "dt-vra", - 6343: "sflow", - 6344: "streletz", - 6346: "gnutella-svc", - 6347: "gnutella-rtr", - 6350: "adap", - 6355: "pmcs", - 6360: "metaedit-mu", - 6370: "metaedit-se", - 6379: "redis", - 6382: "metatude-mds", - 6389: "clariion-evr01", - 6390: "metaedit-ws", - 6417: "faxcomservice", - 6418: "syserverremote", - 6419: "svdrp", - 6420: "nim-vdrshell", - 6421: "nim-wan", - 6432: "pgbouncer", - 6442: "tarp", - 6443: "sun-sr-https", - 6444: "sge-qmaster", - 6445: "sge-execd", - 6446: "mysql-proxy", - 6455: "skip-cert-recv", - 6456: "skip-cert-send", - 6464: "ieee11073-20701", - 6471: "lvision-lm", - 6480: "sun-sr-http", - 6481: "servicetags", - 6482: "ldoms-mgmt", - 6483: "SunVTS-RMI", - 6484: "sun-sr-jms", - 6485: "sun-sr-iiop", - 6486: "sun-sr-iiops", - 6487: "sun-sr-iiop-aut", - 6488: "sun-sr-jmx", - 6489: "sun-sr-admin", - 6500: "boks", - 6501: "boks-servc", - 6502: "boks-servm", - 6503: "boks-clntd", - 6505: "badm-priv", - 6506: "badm-pub", - 6507: "bdir-priv", - 6508: "bdir-pub", - 6509: "mgcs-mfp-port", - 6510: "mcer-port", - 6513: "netconf-tls", - 6514: "syslog-tls", - 6515: "elipse-rec", - 6543: "lds-distrib", - 6544: "lds-dump", - 6547: "apc-6547", - 6548: "apc-6548", - 6549: "apc-6549", - 6550: "fg-sysupdate", - 6551: "sum", - 6558: "xdsxdm", - 6566: "sane-port", - 6568: "canit-store", - 6579: "affiliate", - 6580: "parsec-master", - 6581: "parsec-peer", - 6582: "parsec-game", - 6583: "joaJewelSuite", - 6600: "mshvlm", - 6601: "mstmg-sstp", - 6602: "wsscomfrmwk", - 6619: "odette-ftps", - 6620: "kftp-data", - 6621: "kftp", - 6622: "mcftp", - 6623: "ktelnet", - 6624: "datascaler-db", - 6625: "datascaler-ctl", - 6626: "wago-service", - 6627: "nexgen", - 6628: "afesc-mc", - 6629: "nexgen-aux", - 6632: "mxodbc-connect", - 6640: "ovsdb", - 6653: "openflow", - 6655: "pcs-sf-ui-man", - 6656: "emgmsg", - 6670: "vocaltec-gold", - 6671: "p4p-portal", - 6672: "vision-server", - 6673: "vision-elmd", - 6678: "vfbp", - 6679: "osaut", - 6687: "clever-ctrace", - 6688: "clever-tcpip", - 6689: "tsa", - 6690: "cleverdetect", - 6697: "ircs-u", - 6701: "kti-icad-srvr", - 6702: "e-design-net", - 6703: "e-design-web", - 6714: "ibprotocol", - 6715: "fibotrader-com", - 6716: "princity-agent", - 6767: "bmc-perf-agent", - 6768: "bmc-perf-mgrd", - 6769: "adi-gxp-srvprt", - 6770: "plysrv-http", - 6771: "plysrv-https", - 6777: "ntz-tracker", - 6778: "ntz-p2p-storage", - 6785: "dgpf-exchg", - 6786: "smc-jmx", - 6787: "smc-admin", - 6788: "smc-http", - 6789: "radg", - 6790: "hnmp", - 6791: "hnm", - 6801: "acnet", - 6817: "pentbox-sim", - 6831: "ambit-lm", - 6841: "netmo-default", - 6842: "netmo-http", - 6850: "iccrushmore", - 6868: "acctopus-cc", - 6888: "muse", - 6900: "rtimeviewer", - 6901: "jetstream", - 6935: "ethoscan", - 6936: "xsmsvc", - 6946: "bioserver", - 6951: "otlp", - 6961: "jmact3", - 6962: "jmevt2", - 6963: "swismgr1", - 6964: "swismgr2", - 6965: "swistrap", - 6966: "swispol", - 6969: "acmsoda", - 6970: "conductor", - 6997: "MobilitySrv", - 6998: "iatp-highpri", - 6999: "iatp-normalpri", - 7000: "afs3-fileserver", - 7001: "afs3-callback", - 7002: "afs3-prserver", - 7003: "afs3-vlserver", - 7004: "afs3-kaserver", - 7005: "afs3-volser", - 7006: "afs3-errors", - 7007: "afs3-bos", - 7008: "afs3-update", - 7009: "afs3-rmtsys", - 7010: "ups-onlinet", - 7011: "talon-disc", - 7012: "talon-engine", - 7013: "microtalon-dis", - 7014: "microtalon-com", - 7015: "talon-webserver", - 7016: "spg", - 7017: "grasp", - 7018: "fisa-svc", - 7019: "doceri-ctl", - 7020: "dpserve", - 7021: "dpserveadmin", - 7022: "ctdp", - 7023: "ct2nmcs", - 7024: "vmsvc", - 7025: "vmsvc-2", - 7030: "op-probe", - 7031: "iposplanet", - 7070: "arcp", - 7071: "iwg1", - 7073: "martalk", - 7080: "empowerid", - 7099: "lazy-ptop", - 7100: "font-service", - 7101: "elcn", - 7117: "rothaga", - 7121: "virprot-lm", - 7128: "scenidm", - 7129: "scenccs", - 7161: "cabsm-comm", - 7162: "caistoragemgr", - 7163: "cacsambroker", - 7164: "fsr", - 7165: "doc-server", - 7166: "aruba-server", - 7167: "casrmagent", - 7168: "cnckadserver", - 7169: "ccag-pib", - 7170: "nsrp", - 7171: "drm-production", - 7172: "metalbend", - 7173: "zsecure", - 7174: "clutild", - 7200: "fodms", - 7201: "dlip", - 7202: "pon-ictp", - 7215: "PS-Server", - 7216: "PS-Capture-Pro", - 7227: "ramp", - 7228: "citrixupp", - 7229: "citrixuppg", - 7236: "display", - 7237: "pads", - 7244: "frc-hicp", - 7262: "cnap", - 7272: "watchme-7272", - 7273: "oma-rlp", - 7274: "oma-rlp-s", - 7275: "oma-ulp", - 7276: "oma-ilp", - 7277: "oma-ilp-s", - 7278: "oma-dcdocbs", - 7279: "ctxlic", - 7280: "itactionserver1", - 7281: "itactionserver2", - 7282: "mzca-action", - 7283: "genstat", - 7365: "lcm-server", - 7391: "mindfilesys", - 7392: "mrssrendezvous", - 7393: "nfoldman", - 7394: "fse", - 7395: "winqedit", - 7397: "hexarc", - 7400: "rtps-discovery", - 7401: "rtps-dd-ut", - 7402: "rtps-dd-mt", - 7410: "ionixnetmon", - 7411: "daqstream", - 7421: "mtportmon", - 7426: "pmdmgr", - 7427: "oveadmgr", - 7428: "ovladmgr", - 7429: "opi-sock", - 7430: "xmpv7", - 7431: "pmd", - 7437: "faximum", - 7443: "oracleas-https", - 7471: "sttunnel", - 7473: "rise", - 7474: "neo4j", - 7478: "openit", - 7491: "telops-lmd", - 7500: "silhouette", - 7501: "ovbus", - 7508: "adcp", - 7509: "acplt", - 7510: "ovhpas", - 7511: "pafec-lm", - 7542: "saratoga", - 7543: "atul", - 7544: "nta-ds", - 7545: "nta-us", - 7546: "cfs", - 7547: "cwmp", - 7548: "tidp", - 7549: "nls-tl", - 7551: "controlone-con", - 7560: "sncp", - 7563: "cfw", - 7566: "vsi-omega", - 7569: "dell-eql-asm", - 7570: "aries-kfinder", - 7574: "coherence", - 7588: "sun-lm", - 7606: "mipi-debug", - 7624: "indi", - 7626: "simco", - 7627: "soap-http", - 7628: "zen-pawn", - 7629: "xdas", - 7630: "hawk", - 7631: "tesla-sys-msg", - 7633: "pmdfmgt", - 7648: "cuseeme", - 7672: "imqstomp", - 7673: "imqstomps", - 7674: "imqtunnels", - 7675: "imqtunnel", - 7676: "imqbrokerd", - 7677: "sun-user-https", - 7680: "pando-pub", - 7683: "dmt", - 7687: "bolt", - 7689: "collaber", - 7697: "klio", - 7700: "em7-secom", - 7707: "sync-em7", - 7708: "scinet", - 7720: "medimageportal", - 7724: "nsdeepfreezectl", - 7725: "nitrogen", - 7726: "freezexservice", - 7727: "trident-data", - 7728: "osvr", - 7734: "smip", - 7738: "aiagent", - 7741: "scriptview", - 7742: "msss", - 7743: "sstp-1", - 7744: "raqmon-pdu", - 7747: "prgp", - 7775: "inetfs", - 7777: "cbt", - 7778: "interwise", - 7779: "vstat", - 7781: "accu-lmgr", - 7786: "minivend", - 7787: "popup-reminders", - 7789: "office-tools", - 7794: "q3ade", - 7797: "pnet-conn", - 7798: "pnet-enc", - 7799: "altbsdp", - 7800: "asr", - 7801: "ssp-client", - 7810: "rbt-wanopt", - 7845: "apc-7845", - 7846: "apc-7846", - 7847: "csoauth", - 7869: "mobileanalyzer", - 7870: "rbt-smc", - 7871: "mdm", - 7878: "owms", - 7880: "pss", - 7887: "ubroker", - 7900: "mevent", - 7901: "tnos-sp", - 7902: "tnos-dp", - 7903: "tnos-dps", - 7913: "qo-secure", - 7932: "t2-drm", - 7933: "t2-brm", - 7962: "generalsync", - 7967: "supercell", - 7979: "micromuse-ncps", - 7980: "quest-vista", - 7981: "sossd-collect", - 7982: "sossd-agent", - 7997: "pushns", - 7999: "irdmi2", - 8000: "irdmi", - 8001: "vcom-tunnel", - 8002: "teradataordbms", - 8003: "mcreport", - 8005: "mxi", - 8006: "wpl-analytics", - 8007: "warppipe", - 8008: "http-alt", - 8019: "qbdb", - 8020: "intu-ec-svcdisc", - 8021: "intu-ec-client", - 8022: "oa-system", - 8025: "ca-audit-da", - 8026: "ca-audit-ds", - 8032: "pro-ed", - 8033: "mindprint", - 8034: "vantronix-mgmt", - 8040: "ampify", - 8041: "enguity-xccetp", - 8042: "fs-agent", - 8043: "fs-server", - 8044: "fs-mgmt", - 8051: "rocrail", - 8052: "senomix01", - 8053: "senomix02", - 8054: "senomix03", - 8055: "senomix04", - 8056: "senomix05", - 8057: "senomix06", - 8058: "senomix07", - 8059: "senomix08", - 8066: "toad-bi-appsrvr", - 8067: "infi-async", - 8070: "ucs-isc", - 8074: "gadugadu", - 8077: "mles", - 8080: "http-alt", - 8081: "sunproxyadmin", - 8082: "us-cli", - 8083: "us-srv", - 8086: "d-s-n", - 8087: "simplifymedia", - 8088: "radan-http", - 8090: "opsmessaging", - 8091: "jamlink", - 8097: "sac", - 8100: "xprint-server", - 8101: "ldoms-migr", - 8102: "kz-migr", - 8115: "mtl8000-matrix", - 8116: "cp-cluster", - 8117: "purityrpc", - 8118: "privoxy", - 8121: "apollo-data", - 8122: "apollo-admin", - 8128: "paycash-online", - 8129: "paycash-wbp", - 8130: "indigo-vrmi", - 8131: "indigo-vbcp", - 8132: "dbabble", - 8140: "puppet", - 8148: "isdd", - 8153: "quantastor", - 8160: "patrol", - 8161: "patrol-snmp", - 8162: "lpar2rrd", - 8181: "intermapper", - 8182: "vmware-fdm", - 8183: "proremote", - 8184: "itach", - 8190: "gcp-rphy", - 8191: "limnerpressure", - 8192: "spytechphone", - 8194: "blp1", - 8195: "blp2", - 8199: "vvr-data", - 8200: "trivnet1", - 8201: "trivnet2", - 8204: "lm-perfworks", - 8205: "lm-instmgr", - 8206: "lm-dta", - 8207: "lm-sserver", - 8208: "lm-webwatcher", - 8230: "rexecj", - 8243: "synapse-nhttps", - 8270: "robot-remote", - 8276: "pando-sec", - 8280: "synapse-nhttp", - 8282: "libelle", - 8292: "blp3", - 8293: "hiperscan-id", - 8294: "blp4", - 8300: "tmi", - 8301: "amberon", - 8313: "hub-open-net", - 8320: "tnp-discover", - 8321: "tnp", - 8322: "garmin-marine", - 8351: "server-find", - 8376: "cruise-enum", - 8377: "cruise-swroute", - 8378: "cruise-config", - 8379: "cruise-diags", - 8380: "cruise-update", - 8383: "m2mservices", - 8400: "cvd", - 8401: "sabarsd", - 8402: "abarsd", - 8403: "admind", - 8404: "svcloud", - 8405: "svbackup", - 8415: "dlpx-sp", - 8416: "espeech", - 8417: "espeech-rtp", - 8423: "aritts", - 8442: "cybro-a-bus", - 8443: "pcsync-https", - 8444: "pcsync-http", - 8445: "copy", - 8450: "npmp", - 8457: "nexentamv", - 8470: "cisco-avp", - 8471: "pim-port", - 8472: "otv", - 8473: "vp2p", - 8474: "noteshare", - 8500: "fmtp", - 8501: "cmtp-mgt", - 8502: "ftnmtp", - 8554: "rtsp-alt", - 8555: "d-fence", - 8567: "dof-tunnel", - 8600: "asterix", - 8610: "canon-mfnp", - 8611: "canon-bjnp1", - 8612: "canon-bjnp2", - 8613: "canon-bjnp3", - 8614: "canon-bjnp4", - 8615: "imink", - 8665: "monetra", - 8666: "monetra-admin", - 8675: "msi-cps-rm", - 8686: "sun-as-jmxrmi", - 8688: "openremote-ctrl", - 8699: "vnyx", - 8711: "nvc", - 8733: "ibus", - 8750: "dey-keyneg", - 8763: "mc-appserver", - 8764: "openqueue", - 8765: "ultraseek-http", - 8766: "amcs", - 8770: "dpap", - 8778: "uec", - 8786: "msgclnt", - 8787: "msgsrvr", - 8793: "acd-pm", - 8800: "sunwebadmin", - 8804: "truecm", - 8873: "dxspider", - 8880: "cddbp-alt", - 8881: "galaxy4d", - 8883: "secure-mqtt", - 8888: "ddi-tcp-1", - 8889: "ddi-tcp-2", - 8890: "ddi-tcp-3", - 8891: "ddi-tcp-4", - 8892: "ddi-tcp-5", - 8893: "ddi-tcp-6", - 8894: "ddi-tcp-7", - 8899: "ospf-lite", - 8900: "jmb-cds1", - 8901: "jmb-cds2", - 8910: "manyone-http", - 8911: "manyone-xml", - 8912: "wcbackup", - 8913: "dragonfly", - 8937: "twds", - 8953: "ub-dns-control", - 8954: "cumulus-admin", - 8980: "nod-provider", - 8989: "sunwebadmins", - 8990: "http-wmap", - 8991: "https-wmap", - 8997: "oracle-ms-ens", - 8998: "canto-roboflow", - 8999: "bctp", - 9000: "cslistener", - 9001: "etlservicemgr", - 9002: "dynamid", - 9005: "golem", - 9008: "ogs-server", - 9009: "pichat", - 9010: "sdr", - 9020: "tambora", - 9021: "panagolin-ident", - 9022: "paragent", - 9023: "swa-1", - 9024: "swa-2", - 9025: "swa-3", - 9026: "swa-4", - 9050: "versiera", - 9051: "fio-cmgmt", - 9060: "CardWeb-IO", - 9080: "glrpc", - 9083: "emc-pp-mgmtsvc", - 9084: "aurora", - 9085: "ibm-rsyscon", - 9086: "net2display", - 9087: "classic", - 9088: "sqlexec", - 9089: "sqlexec-ssl", - 9090: "websm", - 9091: "xmltec-xmlmail", - 9092: "XmlIpcRegSvc", - 9093: "copycat", - 9100: "hp-pdl-datastr", - 9101: "bacula-dir", - 9102: "bacula-fd", - 9103: "bacula-sd", - 9104: "peerwire", - 9105: "xadmin", - 9106: "astergate", - 9107: "astergatefax", - 9119: "mxit", - 9122: "grcmp", - 9123: "grcp", - 9131: "dddp", - 9160: "apani1", - 9161: "apani2", - 9162: "apani3", - 9163: "apani4", - 9164: "apani5", - 9191: "sun-as-jpda", - 9200: "wap-wsp", - 9201: "wap-wsp-wtp", - 9202: "wap-wsp-s", - 9203: "wap-wsp-wtp-s", - 9204: "wap-vcard", - 9205: "wap-vcal", - 9206: "wap-vcard-s", - 9207: "wap-vcal-s", - 9208: "rjcdb-vcards", - 9209: "almobile-system", - 9210: "oma-mlp", - 9211: "oma-mlp-s", - 9212: "serverviewdbms", - 9213: "serverstart", - 9214: "ipdcesgbs", - 9215: "insis", - 9216: "acme", - 9217: "fsc-port", - 9222: "teamcoherence", - 9255: "mon", - 9278: "pegasus", - 9279: "pegasus-ctl", - 9280: "pgps", - 9281: "swtp-port1", - 9282: "swtp-port2", - 9283: "callwaveiam", - 9284: "visd", - 9285: "n2h2server", - 9287: "cumulus", - 9292: "armtechdaemon", - 9293: "storview", - 9294: "armcenterhttp", - 9295: "armcenterhttps", - 9300: "vrace", - 9306: "sphinxql", - 9312: "sphinxapi", - 9318: "secure-ts", - 9321: "guibase", - 9343: "mpidcmgr", - 9344: "mphlpdmc", - 9345: "rancher", - 9346: "ctechlicensing", - 9374: "fjdmimgr", - 9380: "boxp", - 9387: "d2dconfig", - 9388: "d2ddatatrans", - 9389: "adws", - 9390: "otp", - 9396: "fjinvmgr", - 9397: "mpidcagt", - 9400: "sec-t4net-srv", - 9401: "sec-t4net-clt", - 9402: "sec-pc2fax-srv", - 9418: "git", - 9443: "tungsten-https", - 9444: "wso2esb-console", - 9445: "mindarray-ca", - 9450: "sntlkeyssrvr", - 9500: "ismserver", - 9535: "mngsuite", - 9536: "laes-bf", - 9555: "trispen-sra", - 9592: "ldgateway", - 9593: "cba8", - 9594: "msgsys", - 9595: "pds", - 9596: "mercury-disc", - 9597: "pd-admin", - 9598: "vscp", - 9599: "robix", - 9600: "micromuse-ncpw", - 9612: "streamcomm-ds", - 9614: "iadt-tls", - 9616: "erunbook-agent", - 9617: "erunbook-server", - 9618: "condor", - 9628: "odbcpathway", - 9629: "uniport", - 9630: "peoctlr", - 9631: "peocoll", - 9640: "pqsflows", - 9666: "zoomcp", - 9667: "xmms2", - 9668: "tec5-sdctp", - 9694: "client-wakeup", - 9695: "ccnx", - 9700: "board-roar", - 9747: "l5nas-parchan", - 9750: "board-voip", - 9753: "rasadv", - 9762: "tungsten-http", - 9800: "davsrc", - 9801: "sstp-2", - 9802: "davsrcs", - 9875: "sapv1", - 9876: "sd", - 9888: "cyborg-systems", - 9889: "gt-proxy", - 9898: "monkeycom", - 9900: "iua", - 9909: "domaintime", - 9911: "sype-transport", - 9925: "xybrid-cloud", - 9950: "apc-9950", - 9951: "apc-9951", - 9952: "apc-9952", - 9953: "acis", - 9954: "hinp", - 9955: "alljoyn-stm", - 9966: "odnsp", - 9978: "xybrid-rt", - 9979: "visweather", - 9981: "pumpkindb", - 9987: "dsm-scm-target", - 9988: "nsesrvr", - 9990: "osm-appsrvr", - 9991: "osm-oev", - 9992: "palace-1", - 9993: "palace-2", - 9994: "palace-3", - 9995: "palace-4", - 9996: "palace-5", - 9997: "palace-6", - 9998: "distinct32", - 9999: "distinct", - 10000: "ndmp", - 10001: "scp-config", - 10002: "documentum", - 10003: "documentum-s", - 10004: "emcrmirccd", - 10005: "emcrmird", - 10006: "netapp-sync", - 10007: "mvs-capacity", - 10008: "octopus", - 10009: "swdtp-sv", - 10010: "rxapi", - 10020: "abb-hw", - 10050: "zabbix-agent", - 10051: "zabbix-trapper", - 10055: "qptlmd", - 10080: "amanda", - 10081: "famdc", - 10100: "itap-ddtp", - 10101: "ezmeeting-2", - 10102: "ezproxy-2", - 10103: "ezrelay", - 10104: "swdtp", - 10107: "bctp-server", - 10110: "nmea-0183", - 10113: "netiq-endpoint", - 10114: "netiq-qcheck", - 10115: "netiq-endpt", - 10116: "netiq-voipa", - 10117: "iqrm", - 10125: "cimple", - 10128: "bmc-perf-sd", - 10129: "bmc-gms", - 10160: "qb-db-server", - 10161: "snmptls", - 10162: "snmptls-trap", - 10200: "trisoap", - 10201: "rsms", - 10252: "apollo-relay", - 10260: "axis-wimp-port", - 10261: "tile-ml", - 10288: "blocks", - 10321: "cosir", - 10540: "MOS-lower", - 10541: "MOS-upper", - 10542: "MOS-aux", - 10543: "MOS-soap", - 10544: "MOS-soap-opt", - 10548: "serverdocs", - 10631: "printopia", - 10800: "gap", - 10805: "lpdg", - 10809: "nbd", - 10860: "helix", - 10880: "bveapi", - 10933: "octopustentacle", - 10990: "rmiaux", - 11000: "irisa", - 11001: "metasys", - 11095: "weave", - 11103: "origo-sync", - 11104: "netapp-icmgmt", - 11105: "netapp-icdata", - 11106: "sgi-lk", - 11109: "sgi-dmfmgr", - 11110: "sgi-soap", - 11111: "vce", - 11112: "dicom", - 11161: "suncacao-snmp", - 11162: "suncacao-jmxmp", - 11163: "suncacao-rmi", - 11164: "suncacao-csa", - 11165: "suncacao-websvc", - 11172: "oemcacao-jmxmp", - 11173: "t5-straton", - 11174: "oemcacao-rmi", - 11175: "oemcacao-websvc", - 11201: "smsqp", - 11202: "dcsl-backup", - 11208: "wifree", - 11211: "memcache", - 11319: "imip", - 11320: "imip-channels", - 11321: "arena-server", - 11367: "atm-uhas", - 11371: "hkp", - 11489: "asgcypresstcps", - 11600: "tempest-port", - 11623: "emc-xsw-dconfig", - 11720: "h323callsigalt", - 11723: "emc-xsw-dcache", - 11751: "intrepid-ssl", - 11796: "lanschool", - 11876: "xoraya", - 11967: "sysinfo-sp", - 12000: "entextxid", - 12001: "entextnetwk", - 12002: "entexthigh", - 12003: "entextmed", - 12004: "entextlow", - 12005: "dbisamserver1", - 12006: "dbisamserver2", - 12007: "accuracer", - 12008: "accuracer-dbms", - 12010: "edbsrvr", - 12012: "vipera", - 12013: "vipera-ssl", - 12109: "rets-ssl", - 12121: "nupaper-ss", - 12168: "cawas", - 12172: "hivep", - 12300: "linogridengine", - 12302: "rads", - 12321: "warehouse-sss", - 12322: "warehouse", - 12345: "italk", - 12753: "tsaf", - 12865: "netperf", - 13160: "i-zipqd", - 13216: "bcslogc", - 13217: "rs-pias", - 13218: "emc-vcas-tcp", - 13223: "powwow-client", - 13224: "powwow-server", - 13400: "doip-data", - 13720: "bprd", - 13721: "bpdbm", - 13722: "bpjava-msvc", - 13724: "vnetd", - 13782: "bpcd", - 13783: "vopied", - 13785: "nbdb", - 13786: "nomdb", - 13818: "dsmcc-config", - 13819: "dsmcc-session", - 13820: "dsmcc-passthru", - 13821: "dsmcc-download", - 13822: "dsmcc-ccp", - 13823: "bmdss", - 13894: "ucontrol", - 13929: "dta-systems", - 13930: "medevolve", - 14000: "scotty-ft", - 14001: "sua", - 14033: "sage-best-com1", - 14034: "sage-best-com2", - 14141: "vcs-app", - 14142: "icpp", - 14143: "icpps", - 14145: "gcm-app", - 14149: "vrts-tdd", - 14150: "vcscmd", - 14154: "vad", - 14250: "cps", - 14414: "ca-web-update", - 14500: "xpra", - 14936: "hde-lcesrvr-1", - 14937: "hde-lcesrvr-2", - 15000: "hydap", - 15002: "onep-tls", - 15345: "xpilot", - 15363: "3link", - 15555: "cisco-snat", - 15660: "bex-xr", - 15740: "ptp", - 15999: "programmar", - 16000: "fmsas", - 16001: "fmsascon", - 16002: "gsms", - 16020: "jwpc", - 16021: "jwpc-bin", - 16161: "sun-sea-port", - 16162: "solaris-audit", - 16309: "etb4j", - 16310: "pduncs", - 16311: "pdefmns", - 16360: "netserialext1", - 16361: "netserialext2", - 16367: "netserialext3", - 16368: "netserialext4", - 16384: "connected", - 16385: "rdgs", - 16619: "xoms", - 16665: "axon-tunnel", - 16789: "cadsisvr", - 16900: "newbay-snc-mc", - 16950: "sgcip", - 16991: "intel-rci-mp", - 16992: "amt-soap-http", - 16993: "amt-soap-https", - 16994: "amt-redir-tcp", - 16995: "amt-redir-tls", - 17007: "isode-dua", - 17184: "vestasdlp", - 17185: "soundsvirtual", - 17219: "chipper", - 17220: "avtp", - 17221: "avdecc", - 17223: "isa100-gci", - 17225: "trdp-md", - 17234: "integrius-stp", - 17235: "ssh-mgmt", - 17500: "db-lsp", - 17555: "ailith", - 17729: "ea", - 17754: "zep", - 17755: "zigbee-ip", - 17756: "zigbee-ips", - 17777: "sw-orion", - 18000: "biimenu", - 18104: "radpdf", - 18136: "racf", - 18181: "opsec-cvp", - 18182: "opsec-ufp", - 18183: "opsec-sam", - 18184: "opsec-lea", - 18185: "opsec-omi", - 18186: "ohsc", - 18187: "opsec-ela", - 18241: "checkpoint-rtm", - 18242: "iclid", - 18243: "clusterxl", - 18262: "gv-pf", - 18463: "ac-cluster", - 18634: "rds-ib", - 18635: "rds-ip", - 18668: "vdmmesh", - 18769: "ique", - 18881: "infotos", - 18888: "apc-necmp", - 19000: "igrid", - 19007: "scintilla", - 19020: "j-link", - 19191: "opsec-uaa", - 19194: "ua-secureagent", - 19220: "cora", - 19283: "keysrvr", - 19315: "keyshadow", - 19398: "mtrgtrans", - 19410: "hp-sco", - 19411: "hp-sca", - 19412: "hp-sessmon", - 19539: "fxuptp", - 19540: "sxuptp", - 19541: "jcp", - 19998: "iec-104-sec", - 19999: "dnp-sec", - 20000: "dnp", - 20001: "microsan", - 20002: "commtact-http", - 20003: "commtact-https", - 20005: "openwebnet", - 20013: "ss-idi", - 20014: "opendeploy", - 20034: "nburn-id", - 20046: "tmophl7mts", - 20048: "mountd", - 20049: "nfsrdma", - 20057: "avesterra", - 20167: "tolfab", - 20202: "ipdtp-port", - 20222: "ipulse-ics", - 20480: "emwavemsg", - 20670: "track", - 20999: "athand-mmp", - 21000: "irtrans", - 21010: "notezilla-lan", - 21221: "aigairserver", - 21553: "rdm-tfs", - 21554: "dfserver", - 21590: "vofr-gateway", - 21800: "tvpm", - 21845: "webphone", - 21846: "netspeak-is", - 21847: "netspeak-cs", - 21848: "netspeak-acd", - 21849: "netspeak-cps", - 22000: "snapenetio", - 22001: "optocontrol", - 22002: "optohost002", - 22003: "optohost003", - 22004: "optohost004", - 22005: "optohost004", - 22125: "dcap", - 22128: "gsidcap", - 22222: "easyengine", - 22273: "wnn6", - 22305: "cis", - 22335: "shrewd-control", - 22343: "cis-secure", - 22347: "wibukey", - 22350: "codemeter", - 22351: "codemeter-cmwan", - 22537: "caldsoft-backup", - 22555: "vocaltec-wconf", - 22763: "talikaserver", - 22800: "aws-brf", - 22951: "brf-gw", - 23000: "inovaport1", - 23001: "inovaport2", - 23002: "inovaport3", - 23003: "inovaport4", - 23004: "inovaport5", - 23005: "inovaport6", - 23053: "gntp", - 23294: "5afe-dir", - 23333: "elxmgmt", - 23400: "novar-dbase", - 23401: "novar-alarm", - 23402: "novar-global", - 23456: "aequus", - 23457: "aequus-alt", - 23546: "areaguard-neo", - 24000: "med-ltp", - 24001: "med-fsp-rx", - 24002: "med-fsp-tx", - 24003: "med-supp", - 24004: "med-ovw", - 24005: "med-ci", - 24006: "med-net-svc", - 24242: "filesphere", - 24249: "vista-4gl", - 24321: "ild", - 24386: "intel-rci", - 24465: "tonidods", - 24554: "binkp", - 24577: "bilobit", - 24666: "sdtvwcam", - 24676: "canditv", - 24677: "flashfiler", - 24678: "proactivate", - 24680: "tcc-http", - 24754: "cslg", - 24922: "find", - 25000: "icl-twobase1", - 25001: "icl-twobase2", - 25002: "icl-twobase3", - 25003: "icl-twobase4", - 25004: "icl-twobase5", - 25005: "icl-twobase6", - 25006: "icl-twobase7", - 25007: "icl-twobase8", - 25008: "icl-twobase9", - 25009: "icl-twobase10", - 25576: "sauterdongle", - 25604: "idtp", - 25793: "vocaltec-hos", - 25900: "tasp-net", - 25901: "niobserver", - 25902: "nilinkanalyst", - 25903: "niprobe", - 26000: "quake", - 26133: "scscp", - 26208: "wnn6-ds", - 26257: "cockroach", - 26260: "ezproxy", - 26261: "ezmeeting", - 26262: "k3software-svr", - 26263: "k3software-cli", - 26486: "exoline-tcp", - 26487: "exoconfig", - 26489: "exonet", - 27345: "imagepump", - 27442: "jesmsjc", - 27504: "kopek-httphead", - 27782: "ars-vista", - 27876: "astrolink", - 27999: "tw-auth-key", - 28000: "nxlmd", - 28001: "pqsp", - 28200: "voxelstorm", - 28240: "siemensgsm", - 28589: "bosswave", - 29167: "otmp", - 29999: "bingbang", - 30000: "ndmps", - 30001: "pago-services1", - 30002: "pago-services2", - 30003: "amicon-fpsu-ra", - 30100: "rwp", - 30260: "kingdomsonline", - 30400: "gs-realtime", - 30999: "ovobs", - 31016: "ka-sddp", - 31020: "autotrac-acp", - 31400: "pace-licensed", - 31416: "xqosd", - 31457: "tetrinet", - 31620: "lm-mon", - 31685: "dsx-monitor", - 31765: "gamesmith-port", - 31948: "iceedcp-tx", - 31949: "iceedcp-rx", - 32034: "iracinghelper", - 32249: "t1distproc60", - 32400: "plex", - 32483: "apm-link", - 32635: "sec-ntb-clnt", - 32636: "DMExpress", - 32767: "filenet-powsrm", - 32768: "filenet-tms", - 32769: "filenet-rpc", - 32770: "filenet-nch", - 32771: "filenet-rmi", - 32772: "filenet-pa", - 32773: "filenet-cm", - 32774: "filenet-re", - 32775: "filenet-pch", - 32776: "filenet-peior", - 32777: "filenet-obrok", - 32801: "mlsn", - 32811: "retp", - 32896: "idmgratm", - 33060: "mysqlx", - 33123: "aurora-balaena", - 33331: "diamondport", - 33333: "dgi-serv", - 33334: "speedtrace", - 33434: "traceroute", - 33656: "snip-slave", - 34249: "turbonote-2", - 34378: "p-net-local", - 34379: "p-net-remote", - 34567: "dhanalakshmi", - 34962: "profinet-rt", - 34963: "profinet-rtm", - 34964: "profinet-cm", - 34980: "ethercat", - 35000: "heathview", - 35001: "rt-viewer", - 35002: "rt-sound", - 35003: "rt-devicemapper", - 35004: "rt-classmanager", - 35005: "rt-labtracker", - 35006: "rt-helper", - 35100: "axio-disc", - 35354: "kitim", - 35355: "altova-lm", - 35356: "guttersnex", - 35357: "openstack-id", - 36001: "allpeers", - 36524: "febooti-aw", - 36602: "observium-agent", - 36700: "mapx", - 36865: "kastenxpipe", - 37475: "neckar", - 37483: "gdrive-sync", - 37601: "eftp", - 37654: "unisys-eportal", - 38000: "ivs-database", - 38001: "ivs-insertion", - 38002: "cresco-control", - 38201: "galaxy7-data", - 38202: "fairview", - 38203: "agpolicy", - 38800: "sruth", - 38865: "secrmmsafecopya", - 39681: "turbonote-1", - 40000: "safetynetp", - 40404: "sptx", - 40841: "cscp", - 40842: "csccredir", - 40843: "csccfirewall", - 41111: "fs-qos", - 41121: "tentacle", - 41230: "z-wave-s", - 41794: "crestron-cip", - 41795: "crestron-ctp", - 41796: "crestron-cips", - 41797: "crestron-ctps", - 42508: "candp", - 42509: "candrp", - 42510: "caerpc", - 43000: "recvr-rc", - 43188: "reachout", - 43189: "ndm-agent-port", - 43190: "ip-provision", - 43191: "noit-transport", - 43210: "shaperai", - 43439: "eq3-update", - 43440: "ew-mgmt", - 43441: "ciscocsdb", - 44123: "z-wave-tunnel", - 44321: "pmcd", - 44322: "pmcdproxy", - 44323: "pmwebapi", - 44444: "cognex-dataman", - 44553: "rbr-debug", - 44818: "EtherNet-IP-2", - 44900: "m3da", - 45000: "asmp", - 45001: "asmps", - 45002: "rs-status", - 45045: "synctest", - 45054: "invision-ag", - 45514: "cloudcheck", - 45678: "eba", - 45824: "dai-shell", - 45825: "qdb2service", - 45966: "ssr-servermgr", - 46336: "inedo", - 46998: "spremotetablet", - 46999: "mediabox", - 47000: "mbus", - 47001: "winrm", - 47557: "dbbrowse", - 47624: "directplaysrvr", - 47806: "ap", - 47808: "bacnet", - 48000: "nimcontroller", - 48001: "nimspooler", - 48002: "nimhub", - 48003: "nimgtw", - 48004: "nimbusdb", - 48005: "nimbusdbctrl", - 48049: "3gpp-cbsp", - 48050: "weandsf", - 48128: "isnetserv", - 48129: "blp5", - 48556: "com-bardac-dw", - 48619: "iqobject", - 48653: "robotraconteur", - 49000: "matahari", - 49001: "nusrp", -} -var udpPortNames = map[UDPPort]string{ - 1: "tcpmux", - 2: "compressnet", - 3: "compressnet", - 5: "rje", - 7: "echo", - 9: "discard", - 11: "systat", - 13: "daytime", - 17: "qotd", - 18: "msp", - 19: "chargen", - 20: "ftp-data", - 21: "ftp", - 22: "ssh", - 23: "telnet", - 25: "smtp", - 27: "nsw-fe", - 29: "msg-icp", - 31: "msg-auth", - 33: "dsp", - 37: "time", - 38: "rap", - 39: "rlp", - 41: "graphics", - 42: "name", - 43: "nicname", - 44: "mpm-flags", - 45: "mpm", - 46: "mpm-snd", - 48: "auditd", - 49: "tacacs", - 50: "re-mail-ck", - 52: "xns-time", - 53: "domain", - 54: "xns-ch", - 55: "isi-gl", - 56: "xns-auth", - 58: "xns-mail", - 62: "acas", - 63: "whoispp", - 64: "covia", - 65: "tacacs-ds", - 66: "sql-net", - 67: "bootps", - 68: "bootpc", - 69: "tftp", - 70: "gopher", - 71: "netrjs-1", - 72: "netrjs-2", - 73: "netrjs-3", - 74: "netrjs-4", - 76: "deos", - 78: "vettcp", - 79: "finger", - 80: "http", - 82: "xfer", - 83: "mit-ml-dev", - 84: "ctf", - 85: "mit-ml-dev", - 86: "mfcobol", - 88: "kerberos", - 89: "su-mit-tg", - 90: "dnsix", - 91: "mit-dov", - 92: "npp", - 93: "dcp", - 94: "objcall", - 95: "supdup", - 96: "dixie", - 97: "swift-rvf", - 98: "tacnews", - 99: "metagram", - 101: "hostname", - 102: "iso-tsap", - 103: "gppitnp", - 104: "acr-nema", - 105: "cso", - 106: "3com-tsmux", - 107: "rtelnet", - 108: "snagas", - 109: "pop2", - 110: "pop3", - 111: "sunrpc", - 112: "mcidas", - 113: "auth", - 115: "sftp", - 116: "ansanotify", - 117: "uucp-path", - 118: "sqlserv", - 119: "nntp", - 120: "cfdptkt", - 121: "erpc", - 122: "smakynet", - 123: "ntp", - 124: "ansatrader", - 125: "locus-map", - 126: "nxedit", - 127: "locus-con", - 128: "gss-xlicen", - 129: "pwdgen", - 130: "cisco-fna", - 131: "cisco-tna", - 132: "cisco-sys", - 133: "statsrv", - 134: "ingres-net", - 135: "epmap", - 136: "profile", - 137: "netbios-ns", - 138: "netbios-dgm", - 139: "netbios-ssn", - 140: "emfis-data", - 141: "emfis-cntl", - 142: "bl-idm", - 143: "imap", - 144: "uma", - 145: "uaac", - 146: "iso-tp0", - 147: "iso-ip", - 148: "jargon", - 149: "aed-512", - 150: "sql-net", - 151: "hems", - 152: "bftp", - 153: "sgmp", - 154: "netsc-prod", - 155: "netsc-dev", - 156: "sqlsrv", - 157: "knet-cmp", - 158: "pcmail-srv", - 159: "nss-routing", - 160: "sgmp-traps", - 161: "snmp", - 162: "snmptrap", - 163: "cmip-man", - 164: "cmip-agent", - 165: "xns-courier", - 166: "s-net", - 167: "namp", - 168: "rsvd", - 169: "send", - 170: "print-srv", - 171: "multiplex", - 172: "cl-1", - 173: "xyplex-mux", - 174: "mailq", - 175: "vmnet", - 176: "genrad-mux", - 177: "xdmcp", - 178: "nextstep", - 179: "bgp", - 180: "ris", - 181: "unify", - 182: "audit", - 183: "ocbinder", - 184: "ocserver", - 185: "remote-kis", - 186: "kis", - 187: "aci", - 188: "mumps", - 189: "qft", - 190: "gacp", - 191: "prospero", - 192: "osu-nms", - 193: "srmp", - 194: "irc", - 195: "dn6-nlm-aud", - 196: "dn6-smm-red", - 197: "dls", - 198: "dls-mon", - 199: "smux", - 200: "src", - 201: "at-rtmp", - 202: "at-nbp", - 203: "at-3", - 204: "at-echo", - 205: "at-5", - 206: "at-zis", - 207: "at-7", - 208: "at-8", - 209: "qmtp", - 210: "z39-50", - 211: "914c-g", - 212: "anet", - 213: "ipx", - 214: "vmpwscs", - 215: "softpc", - 216: "CAIlic", - 217: "dbase", - 218: "mpp", - 219: "uarps", - 220: "imap3", - 221: "fln-spx", - 222: "rsh-spx", - 223: "cdc", - 224: "masqdialer", - 242: "direct", - 243: "sur-meas", - 244: "inbusiness", - 245: "link", - 246: "dsp3270", - 247: "subntbcst-tftp", - 248: "bhfhs", - 256: "rap", - 257: "set", - 259: "esro-gen", - 260: "openport", - 261: "nsiiops", - 262: "arcisdms", - 263: "hdap", - 264: "bgmp", - 265: "x-bone-ctl", - 266: "sst", - 267: "td-service", - 268: "td-replica", - 269: "manet", - 270: "gist", - 280: "http-mgmt", - 281: "personal-link", - 282: "cableport-ax", - 283: "rescap", - 284: "corerjd", - 286: "fxp", - 287: "k-block", - 308: "novastorbakcup", - 309: "entrusttime", - 310: "bhmds", - 311: "asip-webadmin", - 312: "vslmp", - 313: "magenta-logic", - 314: "opalis-robot", - 315: "dpsi", - 316: "decauth", - 317: "zannet", - 318: "pkix-timestamp", - 319: "ptp-event", - 320: "ptp-general", - 321: "pip", - 322: "rtsps", - 333: "texar", - 344: "pdap", - 345: "pawserv", - 346: "zserv", - 347: "fatserv", - 348: "csi-sgwp", - 349: "mftp", - 350: "matip-type-a", - 351: "matip-type-b", - 352: "dtag-ste-sb", - 353: "ndsauth", - 354: "bh611", - 355: "datex-asn", - 356: "cloanto-net-1", - 357: "bhevent", - 358: "shrinkwrap", - 359: "nsrmp", - 360: "scoi2odialog", - 361: "semantix", - 362: "srssend", - 363: "rsvp-tunnel", - 364: "aurora-cmgr", - 365: "dtk", - 366: "odmr", - 367: "mortgageware", - 368: "qbikgdp", - 369: "rpc2portmap", - 370: "codaauth2", - 371: "clearcase", - 372: "ulistproc", - 373: "legent-1", - 374: "legent-2", - 375: "hassle", - 376: "nip", - 377: "tnETOS", - 378: "dsETOS", - 379: "is99c", - 380: "is99s", - 381: "hp-collector", - 382: "hp-managed-node", - 383: "hp-alarm-mgr", - 384: "arns", - 385: "ibm-app", - 386: "asa", - 387: "aurp", - 388: "unidata-ldm", - 389: "ldap", - 390: "uis", - 391: "synotics-relay", - 392: "synotics-broker", - 393: "meta5", - 394: "embl-ndt", - 395: "netcp", - 396: "netware-ip", - 397: "mptn", - 398: "kryptolan", - 399: "iso-tsap-c2", - 400: "osb-sd", - 401: "ups", - 402: "genie", - 403: "decap", - 404: "nced", - 405: "ncld", - 406: "imsp", - 407: "timbuktu", - 408: "prm-sm", - 409: "prm-nm", - 410: "decladebug", - 411: "rmt", - 412: "synoptics-trap", - 413: "smsp", - 414: "infoseek", - 415: "bnet", - 416: "silverplatter", - 417: "onmux", - 418: "hyper-g", - 419: "ariel1", - 420: "smpte", - 421: "ariel2", - 422: "ariel3", - 423: "opc-job-start", - 424: "opc-job-track", - 425: "icad-el", - 426: "smartsdp", - 427: "svrloc", - 428: "ocs-cmu", - 429: "ocs-amu", - 430: "utmpsd", - 431: "utmpcd", - 432: "iasd", - 433: "nnsp", - 434: "mobileip-agent", - 435: "mobilip-mn", - 436: "dna-cml", - 437: "comscm", - 438: "dsfgw", - 439: "dasp", - 440: "sgcp", - 441: "decvms-sysmgt", - 442: "cvc-hostd", - 443: "https", - 444: "snpp", - 445: "microsoft-ds", - 446: "ddm-rdb", - 447: "ddm-dfm", - 448: "ddm-ssl", - 449: "as-servermap", - 450: "tserver", - 451: "sfs-smp-net", - 452: "sfs-config", - 453: "creativeserver", - 454: "contentserver", - 455: "creativepartnr", - 456: "macon-udp", - 457: "scohelp", - 458: "appleqtc", - 459: "ampr-rcmd", - 460: "skronk", - 461: "datasurfsrv", - 462: "datasurfsrvsec", - 463: "alpes", - 464: "kpasswd", - 465: "igmpv3lite", - 466: "digital-vrc", - 467: "mylex-mapd", - 468: "photuris", - 469: "rcp", - 470: "scx-proxy", - 471: "mondex", - 472: "ljk-login", - 473: "hybrid-pop", - 474: "tn-tl-w2", - 475: "tcpnethaspsrv", - 476: "tn-tl-fd1", - 477: "ss7ns", - 478: "spsc", - 479: "iafserver", - 480: "iafdbase", - 481: "ph", - 482: "bgs-nsi", - 483: "ulpnet", - 484: "integra-sme", - 485: "powerburst", - 486: "avian", - 487: "saft", - 488: "gss-http", - 489: "nest-protocol", - 490: "micom-pfs", - 491: "go-login", - 492: "ticf-1", - 493: "ticf-2", - 494: "pov-ray", - 495: "intecourier", - 496: "pim-rp-disc", - 497: "retrospect", - 498: "siam", - 499: "iso-ill", - 500: "isakmp", - 501: "stmf", - 502: "mbap", - 503: "intrinsa", - 504: "citadel", - 505: "mailbox-lm", - 506: "ohimsrv", - 507: "crs", - 508: "xvttp", - 509: "snare", - 510: "fcp", - 511: "passgo", - 512: "comsat", - 513: "who", - 514: "syslog", - 515: "printer", - 516: "videotex", - 517: "talk", - 518: "ntalk", - 519: "utime", - 520: "router", - 521: "ripng", - 522: "ulp", - 523: "ibm-db2", - 524: "ncp", - 525: "timed", - 526: "tempo", - 527: "stx", - 528: "custix", - 529: "irc-serv", - 530: "courier", - 531: "conference", - 532: "netnews", - 533: "netwall", - 534: "windream", - 535: "iiop", - 536: "opalis-rdv", - 537: "nmsp", - 538: "gdomap", - 539: "apertus-ldp", - 540: "uucp", - 541: "uucp-rlogin", - 542: "commerce", - 543: "klogin", - 544: "kshell", - 545: "appleqtcsrvr", - 546: "dhcpv6-client", - 547: "dhcpv6-server", - 548: "afpovertcp", - 549: "idfp", - 550: "new-rwho", - 551: "cybercash", - 552: "devshr-nts", - 553: "pirp", - 554: "rtsp", - 555: "dsf", - 556: "remotefs", - 557: "openvms-sysipc", - 558: "sdnskmp", - 559: "teedtap", - 560: "rmonitor", - 561: "monitor", - 562: "chshell", - 563: "nntps", - 564: "9pfs", - 565: "whoami", - 566: "streettalk", - 567: "banyan-rpc", - 568: "ms-shuttle", - 569: "ms-rome", - 570: "meter", - 571: "meter", - 572: "sonar", - 573: "banyan-vip", - 574: "ftp-agent", - 575: "vemmi", - 576: "ipcd", - 577: "vnas", - 578: "ipdd", - 579: "decbsrv", - 580: "sntp-heartbeat", - 581: "bdp", - 582: "scc-security", - 583: "philips-vc", - 584: "keyserver", - 586: "password-chg", - 587: "submission", - 588: "cal", - 589: "eyelink", - 590: "tns-cml", - 591: "http-alt", - 592: "eudora-set", - 593: "http-rpc-epmap", - 594: "tpip", - 595: "cab-protocol", - 596: "smsd", - 597: "ptcnameservice", - 598: "sco-websrvrmg3", - 599: "acp", - 600: "ipcserver", - 601: "syslog-conn", - 602: "xmlrpc-beep", - 603: "idxp", - 604: "tunnel", - 605: "soap-beep", - 606: "urm", - 607: "nqs", - 608: "sift-uft", - 609: "npmp-trap", - 610: "npmp-local", - 611: "npmp-gui", - 612: "hmmp-ind", - 613: "hmmp-op", - 614: "sshell", - 615: "sco-inetmgr", - 616: "sco-sysmgr", - 617: "sco-dtmgr", - 618: "dei-icda", - 619: "compaq-evm", - 620: "sco-websrvrmgr", - 621: "escp-ip", - 622: "collaborator", - 623: "asf-rmcp", - 624: "cryptoadmin", - 625: "dec-dlm", - 626: "asia", - 627: "passgo-tivoli", - 628: "qmqp", - 629: "3com-amp3", - 630: "rda", - 631: "ipp", - 632: "bmpp", - 633: "servstat", - 634: "ginad", - 635: "rlzdbase", - 636: "ldaps", - 637: "lanserver", - 638: "mcns-sec", - 639: "msdp", - 640: "entrust-sps", - 641: "repcmd", - 642: "esro-emsdp", - 643: "sanity", - 644: "dwr", - 645: "pssc", - 646: "ldp", - 647: "dhcp-failover", - 648: "rrp", - 649: "cadview-3d", - 650: "obex", - 651: "ieee-mms", - 652: "hello-port", - 653: "repscmd", - 654: "aodv", - 655: "tinc", - 656: "spmp", - 657: "rmc", - 658: "tenfold", - 660: "mac-srvr-admin", - 661: "hap", - 662: "pftp", - 663: "purenoise", - 664: "asf-secure-rmcp", - 665: "sun-dr", - 666: "mdqs", - 667: "disclose", - 668: "mecomm", - 669: "meregister", - 670: "vacdsm-sws", - 671: "vacdsm-app", - 672: "vpps-qua", - 673: "cimplex", - 674: "acap", - 675: "dctp", - 676: "vpps-via", - 677: "vpp", - 678: "ggf-ncp", - 679: "mrm", - 680: "entrust-aaas", - 681: "entrust-aams", - 682: "xfr", - 683: "corba-iiop", - 684: "corba-iiop-ssl", - 685: "mdc-portmapper", - 686: "hcp-wismar", - 687: "asipregistry", - 688: "realm-rusd", - 689: "nmap", - 690: "vatp", - 691: "msexch-routing", - 692: "hyperwave-isp", - 693: "connendp", - 694: "ha-cluster", - 695: "ieee-mms-ssl", - 696: "rushd", - 697: "uuidgen", - 698: "olsr", - 699: "accessnetwork", - 700: "epp", - 701: "lmp", - 702: "iris-beep", - 704: "elcsd", - 705: "agentx", - 706: "silc", - 707: "borland-dsj", - 709: "entrust-kmsh", - 710: "entrust-ash", - 711: "cisco-tdp", - 712: "tbrpf", - 713: "iris-xpc", - 714: "iris-xpcs", - 715: "iris-lwz", - 716: "pana", - 729: "netviewdm1", - 730: "netviewdm2", - 731: "netviewdm3", - 741: "netgw", - 742: "netrcs", - 744: "flexlm", - 747: "fujitsu-dev", - 748: "ris-cm", - 749: "kerberos-adm", - 750: "loadav", - 751: "pump", - 752: "qrh", - 753: "rrh", - 754: "tell", - 758: "nlogin", - 759: "con", - 760: "ns", - 761: "rxe", - 762: "quotad", - 763: "cycleserv", - 764: "omserv", - 765: "webster", - 767: "phonebook", - 769: "vid", - 770: "cadlock", - 771: "rtip", - 772: "cycleserv2", - 773: "notify", - 774: "acmaint-dbd", - 775: "acmaint-transd", - 776: "wpages", - 777: "multiling-http", - 780: "wpgs", - 800: "mdbs-daemon", - 801: "device", - 802: "mbap-s", - 810: "fcp-udp", - 828: "itm-mcell-s", - 829: "pkix-3-ca-ra", - 830: "netconf-ssh", - 831: "netconf-beep", - 832: "netconfsoaphttp", - 833: "netconfsoapbeep", - 847: "dhcp-failover2", - 848: "gdoi", - 853: "domain-s", - 854: "dlep", - 860: "iscsi", - 861: "owamp-control", - 862: "twamp-control", - 873: "rsync", - 886: "iclcnet-locate", - 887: "iclcnet-svinfo", - 888: "accessbuilder", - 900: "omginitialrefs", - 901: "smpnameres", - 902: "ideafarm-door", - 903: "ideafarm-panic", - 910: "kink", - 911: "xact-backup", - 912: "apex-mesh", - 913: "apex-edge", - 989: "ftps-data", - 990: "ftps", - 991: "nas", - 992: "telnets", - 993: "imaps", - 995: "pop3s", - 996: "vsinet", - 997: "maitrd", - 998: "puparp", - 999: "applix", - 1000: "cadlock2", - 1010: "surf", - 1021: "exp1", - 1022: "exp2", - 1025: "blackjack", - 1026: "cap", - 1027: "6a44", - 1029: "solid-mux", - 1033: "netinfo-local", - 1034: "activesync", - 1035: "mxxrlogin", - 1036: "nsstp", - 1037: "ams", - 1038: "mtqp", - 1039: "sbl", - 1040: "netarx", - 1041: "danf-ak2", - 1042: "afrog", - 1043: "boinc-client", - 1044: "dcutility", - 1045: "fpitp", - 1046: "wfremotertm", - 1047: "neod1", - 1048: "neod2", - 1049: "td-postman", - 1050: "cma", - 1051: "optima-vnet", - 1052: "ddt", - 1053: "remote-as", - 1054: "brvread", - 1055: "ansyslmd", - 1056: "vfo", - 1057: "startron", - 1058: "nim", - 1059: "nimreg", - 1060: "polestar", - 1061: "kiosk", - 1062: "veracity", - 1063: "kyoceranetdev", - 1064: "jstel", - 1065: "syscomlan", - 1066: "fpo-fns", - 1067: "instl-boots", - 1068: "instl-bootc", - 1069: "cognex-insight", - 1070: "gmrupdateserv", - 1071: "bsquare-voip", - 1072: "cardax", - 1073: "bridgecontrol", - 1074: "warmspotMgmt", - 1075: "rdrmshc", - 1076: "dab-sti-c", - 1077: "imgames", - 1078: "avocent-proxy", - 1079: "asprovatalk", - 1080: "socks", - 1081: "pvuniwien", - 1082: "amt-esd-prot", - 1083: "ansoft-lm-1", - 1084: "ansoft-lm-2", - 1085: "webobjects", - 1086: "cplscrambler-lg", - 1087: "cplscrambler-in", - 1088: "cplscrambler-al", - 1089: "ff-annunc", - 1090: "ff-fms", - 1091: "ff-sm", - 1092: "obrpd", - 1093: "proofd", - 1094: "rootd", - 1095: "nicelink", - 1096: "cnrprotocol", - 1097: "sunclustermgr", - 1098: "rmiactivation", - 1099: "rmiregistry", - 1100: "mctp", - 1101: "pt2-discover", - 1102: "adobeserver-1", - 1103: "adobeserver-2", - 1104: "xrl", - 1105: "ftranhc", - 1106: "isoipsigport-1", - 1107: "isoipsigport-2", - 1108: "ratio-adp", - 1110: "nfsd-keepalive", - 1111: "lmsocialserver", - 1112: "icp", - 1113: "ltp-deepspace", - 1114: "mini-sql", - 1115: "ardus-trns", - 1116: "ardus-cntl", - 1117: "ardus-mtrns", - 1118: "sacred", - 1119: "bnetgame", - 1120: "bnetfile", - 1121: "rmpp", - 1122: "availant-mgr", - 1123: "murray", - 1124: "hpvmmcontrol", - 1125: "hpvmmagent", - 1126: "hpvmmdata", - 1127: "kwdb-commn", - 1128: "saphostctrl", - 1129: "saphostctrls", - 1130: "casp", - 1131: "caspssl", - 1132: "kvm-via-ip", - 1133: "dfn", - 1134: "aplx", - 1135: "omnivision", - 1136: "hhb-gateway", - 1137: "trim", - 1138: "encrypted-admin", - 1139: "evm", - 1140: "autonoc", - 1141: "mxomss", - 1142: "edtools", - 1143: "imyx", - 1144: "fuscript", - 1145: "x9-icue", - 1146: "audit-transfer", - 1147: "capioverlan", - 1148: "elfiq-repl", - 1149: "bvtsonar", - 1150: "blaze", - 1151: "unizensus", - 1152: "winpoplanmess", - 1153: "c1222-acse", - 1154: "resacommunity", - 1155: "nfa", - 1156: "iascontrol-oms", - 1157: "iascontrol", - 1158: "dbcontrol-oms", - 1159: "oracle-oms", - 1160: "olsv", - 1161: "health-polling", - 1162: "health-trap", - 1163: "sddp", - 1164: "qsm-proxy", - 1165: "qsm-gui", - 1166: "qsm-remote", - 1167: "cisco-ipsla", - 1168: "vchat", - 1169: "tripwire", - 1170: "atc-lm", - 1171: "atc-appserver", - 1172: "dnap", - 1173: "d-cinema-rrp", - 1174: "fnet-remote-ui", - 1175: "dossier", - 1176: "indigo-server", - 1177: "dkmessenger", - 1178: "sgi-storman", - 1179: "b2n", - 1180: "mc-client", - 1181: "3comnetman", - 1182: "accelenet-data", - 1183: "llsurfup-http", - 1184: "llsurfup-https", - 1185: "catchpole", - 1186: "mysql-cluster", - 1187: "alias", - 1188: "hp-webadmin", - 1189: "unet", - 1190: "commlinx-avl", - 1191: "gpfs", - 1192: "caids-sensor", - 1193: "fiveacross", - 1194: "openvpn", - 1195: "rsf-1", - 1196: "netmagic", - 1197: "carrius-rshell", - 1198: "cajo-discovery", - 1199: "dmidi", - 1200: "scol", - 1201: "nucleus-sand", - 1202: "caiccipc", - 1203: "ssslic-mgr", - 1204: "ssslog-mgr", - 1205: "accord-mgc", - 1206: "anthony-data", - 1207: "metasage", - 1208: "seagull-ais", - 1209: "ipcd3", - 1210: "eoss", - 1211: "groove-dpp", - 1212: "lupa", - 1213: "mpc-lifenet", - 1214: "kazaa", - 1215: "scanstat-1", - 1216: "etebac5", - 1217: "hpss-ndapi", - 1218: "aeroflight-ads", - 1219: "aeroflight-ret", - 1220: "qt-serveradmin", - 1221: "sweetware-apps", - 1222: "nerv", - 1223: "tgp", - 1224: "vpnz", - 1225: "slinkysearch", - 1226: "stgxfws", - 1227: "dns2go", - 1228: "florence", - 1229: "zented", - 1230: "periscope", - 1231: "menandmice-lpm", - 1232: "first-defense", - 1233: "univ-appserver", - 1234: "search-agent", - 1235: "mosaicsyssvc1", - 1236: "bvcontrol", - 1237: "tsdos390", - 1238: "hacl-qs", - 1239: "nmsd", - 1240: "instantia", - 1241: "nessus", - 1242: "nmasoverip", - 1243: "serialgateway", - 1244: "isbconference1", - 1245: "isbconference2", - 1246: "payrouter", - 1247: "visionpyramid", - 1248: "hermes", - 1249: "mesavistaco", - 1250: "swldy-sias", - 1251: "servergraph", - 1252: "bspne-pcc", - 1253: "q55-pcc", - 1254: "de-noc", - 1255: "de-cache-query", - 1256: "de-server", - 1257: "shockwave2", - 1258: "opennl", - 1259: "opennl-voice", - 1260: "ibm-ssd", - 1261: "mpshrsv", - 1262: "qnts-orb", - 1263: "dka", - 1264: "prat", - 1265: "dssiapi", - 1266: "dellpwrappks", - 1267: "epc", - 1268: "propel-msgsys", - 1269: "watilapp", - 1270: "opsmgr", - 1271: "excw", - 1272: "cspmlockmgr", - 1273: "emc-gateway", - 1274: "t1distproc", - 1275: "ivcollector", - 1277: "miva-mqs", - 1278: "dellwebadmin-1", - 1279: "dellwebadmin-2", - 1280: "pictrography", - 1281: "healthd", - 1282: "emperion", - 1283: "productinfo", - 1284: "iee-qfx", - 1285: "neoiface", - 1286: "netuitive", - 1287: "routematch", - 1288: "navbuddy", - 1289: "jwalkserver", - 1290: "winjaserver", - 1291: "seagulllms", - 1292: "dsdn", - 1293: "pkt-krb-ipsec", - 1294: "cmmdriver", - 1295: "ehtp", - 1296: "dproxy", - 1297: "sdproxy", - 1298: "lpcp", - 1299: "hp-sci", - 1300: "h323hostcallsc", - 1301: "ci3-software-1", - 1302: "ci3-software-2", - 1303: "sftsrv", - 1304: "boomerang", - 1305: "pe-mike", - 1306: "re-conn-proto", - 1307: "pacmand", - 1308: "odsi", - 1309: "jtag-server", - 1310: "husky", - 1311: "rxmon", - 1312: "sti-envision", - 1313: "bmc-patroldb", - 1314: "pdps", - 1315: "els", - 1316: "exbit-escp", - 1317: "vrts-ipcserver", - 1318: "krb5gatekeeper", - 1319: "amx-icsp", - 1320: "amx-axbnet", - 1321: "pip", - 1322: "novation", - 1323: "brcd", - 1324: "delta-mcp", - 1325: "dx-instrument", - 1326: "wimsic", - 1327: "ultrex", - 1328: "ewall", - 1329: "netdb-export", - 1330: "streetperfect", - 1331: "intersan", - 1332: "pcia-rxp-b", - 1333: "passwrd-policy", - 1334: "writesrv", - 1335: "digital-notary", - 1336: "ischat", - 1337: "menandmice-dns", - 1338: "wmc-log-svc", - 1339: "kjtsiteserver", - 1340: "naap", - 1341: "qubes", - 1342: "esbroker", - 1343: "re101", - 1344: "icap", - 1345: "vpjp", - 1346: "alta-ana-lm", - 1347: "bbn-mmc", - 1348: "bbn-mmx", - 1349: "sbook", - 1350: "editbench", - 1351: "equationbuilder", - 1352: "lotusnote", - 1353: "relief", - 1354: "XSIP-network", - 1355: "intuitive-edge", - 1356: "cuillamartin", - 1357: "pegboard", - 1358: "connlcli", - 1359: "ftsrv", - 1360: "mimer", - 1361: "linx", - 1362: "timeflies", - 1363: "ndm-requester", - 1364: "ndm-server", - 1365: "adapt-sna", - 1366: "netware-csp", - 1367: "dcs", - 1368: "screencast", - 1369: "gv-us", - 1370: "us-gv", - 1371: "fc-cli", - 1372: "fc-ser", - 1373: "chromagrafx", - 1374: "molly", - 1375: "bytex", - 1376: "ibm-pps", - 1377: "cichlid", - 1378: "elan", - 1379: "dbreporter", - 1380: "telesis-licman", - 1381: "apple-licman", - 1382: "udt-os", - 1383: "gwha", - 1384: "os-licman", - 1385: "atex-elmd", - 1386: "checksum", - 1387: "cadsi-lm", - 1388: "objective-dbc", - 1389: "iclpv-dm", - 1390: "iclpv-sc", - 1391: "iclpv-sas", - 1392: "iclpv-pm", - 1393: "iclpv-nls", - 1394: "iclpv-nlc", - 1395: "iclpv-wsm", - 1396: "dvl-activemail", - 1397: "audio-activmail", - 1398: "video-activmail", - 1399: "cadkey-licman", - 1400: "cadkey-tablet", - 1401: "goldleaf-licman", - 1402: "prm-sm-np", - 1403: "prm-nm-np", - 1404: "igi-lm", - 1405: "ibm-res", - 1406: "netlabs-lm", - 1408: "sophia-lm", - 1409: "here-lm", - 1410: "hiq", - 1411: "af", - 1412: "innosys", - 1413: "innosys-acl", - 1414: "ibm-mqseries", - 1415: "dbstar", - 1416: "novell-lu6-2", - 1417: "timbuktu-srv1", - 1418: "timbuktu-srv2", - 1419: "timbuktu-srv3", - 1420: "timbuktu-srv4", - 1421: "gandalf-lm", - 1422: "autodesk-lm", - 1423: "essbase", - 1424: "hybrid", - 1425: "zion-lm", - 1426: "sais", - 1427: "mloadd", - 1428: "informatik-lm", - 1429: "nms", - 1430: "tpdu", - 1431: "rgtp", - 1432: "blueberry-lm", - 1433: "ms-sql-s", - 1434: "ms-sql-m", - 1435: "ibm-cics", - 1436: "saism", - 1437: "tabula", - 1438: "eicon-server", - 1439: "eicon-x25", - 1440: "eicon-slp", - 1441: "cadis-1", - 1442: "cadis-2", - 1443: "ies-lm", - 1444: "marcam-lm", - 1445: "proxima-lm", - 1446: "ora-lm", - 1447: "apri-lm", - 1448: "oc-lm", - 1449: "peport", - 1450: "dwf", - 1451: "infoman", - 1452: "gtegsc-lm", - 1453: "genie-lm", - 1454: "interhdl-elmd", - 1455: "esl-lm", - 1456: "dca", - 1457: "valisys-lm", - 1458: "nrcabq-lm", - 1459: "proshare1", - 1460: "proshare2", - 1461: "ibm-wrless-lan", - 1462: "world-lm", - 1463: "nucleus", - 1464: "msl-lmd", - 1465: "pipes", - 1466: "oceansoft-lm", - 1467: "csdmbase", - 1468: "csdm", - 1469: "aal-lm", - 1470: "uaiact", - 1471: "csdmbase", - 1472: "csdm", - 1473: "openmath", - 1474: "telefinder", - 1475: "taligent-lm", - 1476: "clvm-cfg", - 1477: "ms-sna-server", - 1478: "ms-sna-base", - 1479: "dberegister", - 1480: "pacerforum", - 1481: "airs", - 1482: "miteksys-lm", - 1483: "afs", - 1484: "confluent", - 1485: "lansource", - 1486: "nms-topo-serv", - 1487: "localinfosrvr", - 1488: "docstor", - 1489: "dmdocbroker", - 1490: "insitu-conf", - 1492: "stone-design-1", - 1493: "netmap-lm", - 1494: "ica", - 1495: "cvc", - 1496: "liberty-lm", - 1497: "rfx-lm", - 1498: "sybase-sqlany", - 1499: "fhc", - 1500: "vlsi-lm", - 1501: "saiscm", - 1502: "shivadiscovery", - 1503: "imtc-mcs", - 1504: "evb-elm", - 1505: "funkproxy", - 1506: "utcd", - 1507: "symplex", - 1508: "diagmond", - 1509: "robcad-lm", - 1510: "mvx-lm", - 1511: "3l-l1", - 1512: "wins", - 1513: "fujitsu-dtc", - 1514: "fujitsu-dtcns", - 1515: "ifor-protocol", - 1516: "vpad", - 1517: "vpac", - 1518: "vpvd", - 1519: "vpvc", - 1520: "atm-zip-office", - 1521: "ncube-lm", - 1522: "ricardo-lm", - 1523: "cichild-lm", - 1524: "ingreslock", - 1525: "orasrv", - 1526: "pdap-np", - 1527: "tlisrv", - 1528: "ngr-t", - 1529: "coauthor", - 1530: "rap-service", - 1531: "rap-listen", - 1532: "miroconnect", - 1533: "virtual-places", - 1534: "micromuse-lm", - 1535: "ampr-info", - 1536: "ampr-inter", - 1537: "sdsc-lm", - 1538: "3ds-lm", - 1539: "intellistor-lm", - 1540: "rds", - 1541: "rds2", - 1542: "gridgen-elmd", - 1543: "simba-cs", - 1544: "aspeclmd", - 1545: "vistium-share", - 1546: "abbaccuray", - 1547: "laplink", - 1548: "axon-lm", - 1549: "shivasound", - 1550: "3m-image-lm", - 1551: "hecmtl-db", - 1552: "pciarray", - 1553: "sna-cs", - 1554: "caci-lm", - 1555: "livelan", - 1556: "veritas-pbx", - 1557: "arbortext-lm", - 1558: "xingmpeg", - 1559: "web2host", - 1560: "asci-val", - 1561: "facilityview", - 1562: "pconnectmgr", - 1563: "cadabra-lm", - 1564: "pay-per-view", - 1565: "winddlb", - 1566: "corelvideo", - 1567: "jlicelmd", - 1568: "tsspmap", - 1569: "ets", - 1570: "orbixd", - 1571: "rdb-dbs-disp", - 1572: "chip-lm", - 1573: "itscomm-ns", - 1574: "mvel-lm", - 1575: "oraclenames", - 1576: "moldflow-lm", - 1577: "hypercube-lm", - 1578: "jacobus-lm", - 1579: "ioc-sea-lm", - 1580: "tn-tl-r2", - 1581: "mil-2045-47001", - 1582: "msims", - 1583: "simbaexpress", - 1584: "tn-tl-fd2", - 1585: "intv", - 1586: "ibm-abtact", - 1587: "pra-elmd", - 1588: "triquest-lm", - 1589: "vqp", - 1590: "gemini-lm", - 1591: "ncpm-pm", - 1592: "commonspace", - 1593: "mainsoft-lm", - 1594: "sixtrak", - 1595: "radio", - 1596: "radio-bc", - 1597: "orbplus-iiop", - 1598: "picknfs", - 1599: "simbaservices", - 1600: "issd", - 1601: "aas", - 1602: "inspect", - 1603: "picodbc", - 1604: "icabrowser", - 1605: "slp", - 1606: "slm-api", - 1607: "stt", - 1608: "smart-lm", - 1609: "isysg-lm", - 1610: "taurus-wh", - 1611: "ill", - 1612: "netbill-trans", - 1613: "netbill-keyrep", - 1614: "netbill-cred", - 1615: "netbill-auth", - 1616: "netbill-prod", - 1617: "nimrod-agent", - 1618: "skytelnet", - 1619: "xs-openstorage", - 1620: "faxportwinport", - 1621: "softdataphone", - 1622: "ontime", - 1623: "jaleosnd", - 1624: "udp-sr-port", - 1625: "svs-omagent", - 1626: "shockwave", - 1627: "t128-gateway", - 1628: "lontalk-norm", - 1629: "lontalk-urgnt", - 1630: "oraclenet8cman", - 1631: "visitview", - 1632: "pammratc", - 1633: "pammrpc", - 1634: "loaprobe", - 1635: "edb-server1", - 1636: "isdc", - 1637: "islc", - 1638: "ismc", - 1639: "cert-initiator", - 1640: "cert-responder", - 1641: "invision", - 1642: "isis-am", - 1643: "isis-ambc", - 1644: "saiseh", - 1645: "sightline", - 1646: "sa-msg-port", - 1647: "rsap", - 1648: "concurrent-lm", - 1649: "kermit", - 1650: "nkd", - 1651: "shiva-confsrvr", - 1652: "xnmp", - 1653: "alphatech-lm", - 1654: "stargatealerts", - 1655: "dec-mbadmin", - 1656: "dec-mbadmin-h", - 1657: "fujitsu-mmpdc", - 1658: "sixnetudr", - 1659: "sg-lm", - 1660: "skip-mc-gikreq", - 1661: "netview-aix-1", - 1662: "netview-aix-2", - 1663: "netview-aix-3", - 1664: "netview-aix-4", - 1665: "netview-aix-5", - 1666: "netview-aix-6", - 1667: "netview-aix-7", - 1668: "netview-aix-8", - 1669: "netview-aix-9", - 1670: "netview-aix-10", - 1671: "netview-aix-11", - 1672: "netview-aix-12", - 1673: "proshare-mc-1", - 1674: "proshare-mc-2", - 1675: "pdp", - 1676: "netcomm2", - 1677: "groupwise", - 1678: "prolink", - 1679: "darcorp-lm", - 1680: "microcom-sbp", - 1681: "sd-elmd", - 1682: "lanyon-lantern", - 1683: "ncpm-hip", - 1684: "snaresecure", - 1685: "n2nremote", - 1686: "cvmon", - 1687: "nsjtp-ctrl", - 1688: "nsjtp-data", - 1689: "firefox", - 1690: "ng-umds", - 1691: "empire-empuma", - 1692: "sstsys-lm", - 1693: "rrirtr", - 1694: "rrimwm", - 1695: "rrilwm", - 1696: "rrifmm", - 1697: "rrisat", - 1698: "rsvp-encap-1", - 1699: "rsvp-encap-2", - 1700: "mps-raft", - 1701: "l2f", - 1702: "deskshare", - 1703: "hb-engine", - 1704: "bcs-broker", - 1705: "slingshot", - 1706: "jetform", - 1707: "vdmplay", - 1708: "gat-lmd", - 1709: "centra", - 1710: "impera", - 1711: "pptconference", - 1712: "registrar", - 1713: "conferencetalk", - 1714: "sesi-lm", - 1715: "houdini-lm", - 1716: "xmsg", - 1717: "fj-hdnet", - 1718: "h323gatedisc", - 1719: "h323gatestat", - 1720: "h323hostcall", - 1721: "caicci", - 1722: "hks-lm", - 1723: "pptp", - 1724: "csbphonemaster", - 1725: "iden-ralp", - 1726: "iberiagames", - 1727: "winddx", - 1728: "telindus", - 1729: "citynl", - 1730: "roketz", - 1731: "msiccp", - 1732: "proxim", - 1733: "siipat", - 1734: "cambertx-lm", - 1735: "privatechat", - 1736: "street-stream", - 1737: "ultimad", - 1738: "gamegen1", - 1739: "webaccess", - 1740: "encore", - 1741: "cisco-net-mgmt", - 1742: "3Com-nsd", - 1743: "cinegrfx-lm", - 1744: "ncpm-ft", - 1745: "remote-winsock", - 1746: "ftrapid-1", - 1747: "ftrapid-2", - 1748: "oracle-em1", - 1749: "aspen-services", - 1750: "sslp", - 1751: "swiftnet", - 1752: "lofr-lm", - 1754: "oracle-em2", - 1755: "ms-streaming", - 1756: "capfast-lmd", - 1757: "cnhrp", - 1758: "tftp-mcast", - 1759: "spss-lm", - 1760: "www-ldap-gw", - 1761: "cft-0", - 1762: "cft-1", - 1763: "cft-2", - 1764: "cft-3", - 1765: "cft-4", - 1766: "cft-5", - 1767: "cft-6", - 1768: "cft-7", - 1769: "bmc-net-adm", - 1770: "bmc-net-svc", - 1771: "vaultbase", - 1772: "essweb-gw", - 1773: "kmscontrol", - 1774: "global-dtserv", - 1776: "femis", - 1777: "powerguardian", - 1778: "prodigy-intrnet", - 1779: "pharmasoft", - 1780: "dpkeyserv", - 1781: "answersoft-lm", - 1782: "hp-hcip", - 1784: "finle-lm", - 1785: "windlm", - 1786: "funk-logger", - 1787: "funk-license", - 1788: "psmond", - 1789: "hello", - 1790: "nmsp", - 1791: "ea1", - 1792: "ibm-dt-2", - 1793: "rsc-robot", - 1794: "cera-bcm", - 1795: "dpi-proxy", - 1796: "vocaltec-admin", - 1797: "uma", - 1798: "etp", - 1799: "netrisk", - 1800: "ansys-lm", - 1801: "msmq", - 1802: "concomp1", - 1803: "hp-hcip-gwy", - 1804: "enl", - 1805: "enl-name", - 1806: "musiconline", - 1807: "fhsp", - 1808: "oracle-vp2", - 1809: "oracle-vp1", - 1810: "jerand-lm", - 1811: "scientia-sdb", - 1812: "radius", - 1813: "radius-acct", - 1814: "tdp-suite", - 1815: "mmpft", - 1816: "harp", - 1817: "rkb-oscs", - 1818: "etftp", - 1819: "plato-lm", - 1820: "mcagent", - 1821: "donnyworld", - 1822: "es-elmd", - 1823: "unisys-lm", - 1824: "metrics-pas", - 1825: "direcpc-video", - 1826: "ardt", - 1827: "asi", - 1828: "itm-mcell-u", - 1829: "optika-emedia", - 1830: "net8-cman", - 1831: "myrtle", - 1832: "tht-treasure", - 1833: "udpradio", - 1834: "ardusuni", - 1835: "ardusmul", - 1836: "ste-smsc", - 1837: "csoft1", - 1838: "talnet", - 1839: "netopia-vo1", - 1840: "netopia-vo2", - 1841: "netopia-vo3", - 1842: "netopia-vo4", - 1843: "netopia-vo5", - 1844: "direcpc-dll", - 1845: "altalink", - 1846: "tunstall-pnc", - 1847: "slp-notify", - 1848: "fjdocdist", - 1849: "alpha-sms", - 1850: "gsi", - 1851: "ctcd", - 1852: "virtual-time", - 1853: "vids-avtp", - 1854: "buddy-draw", - 1855: "fiorano-rtrsvc", - 1856: "fiorano-msgsvc", - 1857: "datacaptor", - 1858: "privateark", - 1859: "gammafetchsvr", - 1860: "sunscalar-svc", - 1861: "lecroy-vicp", - 1862: "mysql-cm-agent", - 1863: "msnp", - 1864: "paradym-31port", - 1865: "entp", - 1866: "swrmi", - 1867: "udrive", - 1868: "viziblebrowser", - 1869: "transact", - 1870: "sunscalar-dns", - 1871: "canocentral0", - 1872: "canocentral1", - 1873: "fjmpjps", - 1874: "fjswapsnp", - 1875: "westell-stats", - 1876: "ewcappsrv", - 1877: "hp-webqosdb", - 1878: "drmsmc", - 1879: "nettgain-nms", - 1880: "vsat-control", - 1881: "ibm-mqseries2", - 1882: "ecsqdmn", - 1883: "mqtt", - 1884: "idmaps", - 1885: "vrtstrapserver", - 1886: "leoip", - 1887: "filex-lport", - 1888: "ncconfig", - 1889: "unify-adapter", - 1890: "wilkenlistener", - 1891: "childkey-notif", - 1892: "childkey-ctrl", - 1893: "elad", - 1894: "o2server-port", - 1896: "b-novative-ls", - 1897: "metaagent", - 1898: "cymtec-port", - 1899: "mc2studios", - 1900: "ssdp", - 1901: "fjicl-tep-a", - 1902: "fjicl-tep-b", - 1903: "linkname", - 1904: "fjicl-tep-c", - 1905: "sugp", - 1906: "tpmd", - 1907: "intrastar", - 1908: "dawn", - 1909: "global-wlink", - 1910: "ultrabac", - 1911: "mtp", - 1912: "rhp-iibp", - 1913: "armadp", - 1914: "elm-momentum", - 1915: "facelink", - 1916: "persona", - 1917: "noagent", - 1918: "can-nds", - 1919: "can-dch", - 1920: "can-ferret", - 1921: "noadmin", - 1922: "tapestry", - 1923: "spice", - 1924: "xiip", - 1925: "discovery-port", - 1926: "egs", - 1927: "videte-cipc", - 1928: "emsd-port", - 1929: "bandwiz-system", - 1930: "driveappserver", - 1931: "amdsched", - 1932: "ctt-broker", - 1933: "xmapi", - 1934: "xaapi", - 1935: "macromedia-fcs", - 1936: "jetcmeserver", - 1937: "jwserver", - 1938: "jwclient", - 1939: "jvserver", - 1940: "jvclient", - 1941: "dic-aida", - 1942: "res", - 1943: "beeyond-media", - 1944: "close-combat", - 1945: "dialogic-elmd", - 1946: "tekpls", - 1947: "sentinelsrm", - 1948: "eye2eye", - 1949: "ismaeasdaqlive", - 1950: "ismaeasdaqtest", - 1951: "bcs-lmserver", - 1952: "mpnjsc", - 1953: "rapidbase", - 1954: "abr-api", - 1955: "abr-secure", - 1956: "vrtl-vmf-ds", - 1957: "unix-status", - 1958: "dxadmind", - 1959: "simp-all", - 1960: "nasmanager", - 1961: "bts-appserver", - 1962: "biap-mp", - 1963: "webmachine", - 1964: "solid-e-engine", - 1965: "tivoli-npm", - 1966: "slush", - 1967: "sns-quote", - 1968: "lipsinc", - 1969: "lipsinc1", - 1970: "netop-rc", - 1971: "netop-school", - 1972: "intersys-cache", - 1973: "dlsrap", - 1974: "drp", - 1975: "tcoflashagent", - 1976: "tcoregagent", - 1977: "tcoaddressbook", - 1978: "unisql", - 1979: "unisql-java", - 1980: "pearldoc-xact", - 1981: "p2pq", - 1982: "estamp", - 1983: "lhtp", - 1984: "bb", - 1985: "hsrp", - 1986: "licensedaemon", - 1987: "tr-rsrb-p1", - 1988: "tr-rsrb-p2", - 1989: "tr-rsrb-p3", - 1990: "stun-p1", - 1991: "stun-p2", - 1992: "stun-p3", - 1993: "snmp-tcp-port", - 1994: "stun-port", - 1995: "perf-port", - 1996: "tr-rsrb-port", - 1997: "gdp-port", - 1998: "x25-svc-port", - 1999: "tcp-id-port", - 2000: "cisco-sccp", - 2001: "wizard", - 2002: "globe", - 2003: "brutus", - 2004: "emce", - 2005: "oracle", - 2006: "raid-cd", - 2007: "raid-am", - 2008: "terminaldb", - 2009: "whosockami", - 2010: "pipe-server", - 2011: "servserv", - 2012: "raid-ac", - 2013: "raid-cd", - 2014: "raid-sf", - 2015: "raid-cs", - 2016: "bootserver", - 2017: "bootclient", - 2018: "rellpack", - 2019: "about", - 2020: "xinupageserver", - 2021: "xinuexpansion1", - 2022: "xinuexpansion2", - 2023: "xinuexpansion3", - 2024: "xinuexpansion4", - 2025: "xribs", - 2026: "scrabble", - 2027: "shadowserver", - 2028: "submitserver", - 2029: "hsrpv6", - 2030: "device2", - 2031: "mobrien-chat", - 2032: "blackboard", - 2033: "glogger", - 2034: "scoremgr", - 2035: "imsldoc", - 2036: "e-dpnet", - 2037: "applus", - 2038: "objectmanager", - 2039: "prizma", - 2040: "lam", - 2041: "interbase", - 2042: "isis", - 2043: "isis-bcast", - 2044: "rimsl", - 2045: "cdfunc", - 2046: "sdfunc", - 2047: "dls", - 2048: "dls-monitor", - 2049: "shilp", - 2050: "av-emb-config", - 2051: "epnsdp", - 2052: "clearvisn", - 2053: "lot105-ds-upd", - 2054: "weblogin", - 2055: "iop", - 2056: "omnisky", - 2057: "rich-cp", - 2058: "newwavesearch", - 2059: "bmc-messaging", - 2060: "teleniumdaemon", - 2061: "netmount", - 2062: "icg-swp", - 2063: "icg-bridge", - 2064: "icg-iprelay", - 2065: "dlsrpn", - 2066: "aura", - 2067: "dlswpn", - 2068: "avauthsrvprtcl", - 2069: "event-port", - 2070: "ah-esp-encap", - 2071: "acp-port", - 2072: "msync", - 2073: "gxs-data-port", - 2074: "vrtl-vmf-sa", - 2075: "newlixengine", - 2076: "newlixconfig", - 2077: "tsrmagt", - 2078: "tpcsrvr", - 2079: "idware-router", - 2080: "autodesk-nlm", - 2081: "kme-trap-port", - 2082: "infowave", - 2083: "radsec", - 2084: "sunclustergeo", - 2085: "ada-cip", - 2086: "gnunet", - 2087: "eli", - 2088: "ip-blf", - 2089: "sep", - 2090: "lrp", - 2091: "prp", - 2092: "descent3", - 2093: "nbx-cc", - 2094: "nbx-au", - 2095: "nbx-ser", - 2096: "nbx-dir", - 2097: "jetformpreview", - 2098: "dialog-port", - 2099: "h2250-annex-g", - 2100: "amiganetfs", - 2101: "rtcm-sc104", - 2102: "zephyr-srv", - 2103: "zephyr-clt", - 2104: "zephyr-hm", - 2105: "minipay", - 2106: "mzap", - 2107: "bintec-admin", - 2108: "comcam", - 2109: "ergolight", - 2110: "umsp", - 2111: "dsatp", - 2112: "idonix-metanet", - 2113: "hsl-storm", - 2114: "newheights", - 2115: "kdm", - 2116: "ccowcmr", - 2117: "mentaclient", - 2118: "mentaserver", - 2119: "gsigatekeeper", - 2120: "qencp", - 2121: "scientia-ssdb", - 2122: "caupc-remote", - 2123: "gtp-control", - 2124: "elatelink", - 2125: "lockstep", - 2126: "pktcable-cops", - 2127: "index-pc-wb", - 2128: "net-steward", - 2129: "cs-live", - 2130: "xds", - 2131: "avantageb2b", - 2132: "solera-epmap", - 2133: "zymed-zpp", - 2134: "avenue", - 2135: "gris", - 2136: "appworxsrv", - 2137: "connect", - 2138: "unbind-cluster", - 2139: "ias-auth", - 2140: "ias-reg", - 2141: "ias-admind", - 2142: "tdmoip", - 2143: "lv-jc", - 2144: "lv-ffx", - 2145: "lv-pici", - 2146: "lv-not", - 2147: "lv-auth", - 2148: "veritas-ucl", - 2149: "acptsys", - 2150: "dynamic3d", - 2151: "docent", - 2152: "gtp-user", - 2153: "ctlptc", - 2154: "stdptc", - 2155: "brdptc", - 2156: "trp", - 2157: "xnds", - 2158: "touchnetplus", - 2159: "gdbremote", - 2160: "apc-2160", - 2161: "apc-2161", - 2162: "navisphere", - 2163: "navisphere-sec", - 2164: "ddns-v3", - 2165: "x-bone-api", - 2166: "iwserver", - 2167: "raw-serial", - 2168: "easy-soft-mux", - 2169: "brain", - 2170: "eyetv", - 2171: "msfw-storage", - 2172: "msfw-s-storage", - 2173: "msfw-replica", - 2174: "msfw-array", - 2175: "airsync", - 2176: "rapi", - 2177: "qwave", - 2178: "bitspeer", - 2179: "vmrdp", - 2180: "mc-gt-srv", - 2181: "eforward", - 2182: "cgn-stat", - 2183: "cgn-config", - 2184: "nvd", - 2185: "onbase-dds", - 2186: "gtaua", - 2187: "ssmd", - 2190: "tivoconnect", - 2191: "tvbus", - 2192: "asdis", - 2193: "drwcs", - 2197: "mnp-exchange", - 2198: "onehome-remote", - 2199: "onehome-help", - 2200: "ici", - 2201: "ats", - 2202: "imtc-map", - 2203: "b2-runtime", - 2204: "b2-license", - 2205: "jps", - 2206: "hpocbus", - 2207: "hpssd", - 2208: "hpiod", - 2209: "rimf-ps", - 2210: "noaaport", - 2211: "emwin", - 2212: "leecoposserver", - 2213: "kali", - 2214: "rpi", - 2215: "ipcore", - 2216: "vtu-comms", - 2217: "gotodevice", - 2218: "bounzza", - 2219: "netiq-ncap", - 2220: "netiq", - 2221: "ethernet-ip-s", - 2222: "EtherNet-IP-1", - 2223: "rockwell-csp2", - 2224: "efi-mg", - 2226: "di-drm", - 2227: "di-msg", - 2228: "ehome-ms", - 2229: "datalens", - 2230: "queueadm", - 2231: "wimaxasncp", - 2232: "ivs-video", - 2233: "infocrypt", - 2234: "directplay", - 2235: "sercomm-wlink", - 2236: "nani", - 2237: "optech-port1-lm", - 2238: "aviva-sna", - 2239: "imagequery", - 2240: "recipe", - 2241: "ivsd", - 2242: "foliocorp", - 2243: "magicom", - 2244: "nmsserver", - 2245: "hao", - 2246: "pc-mta-addrmap", - 2247: "antidotemgrsvr", - 2248: "ums", - 2249: "rfmp", - 2250: "remote-collab", - 2251: "dif-port", - 2252: "njenet-ssl", - 2253: "dtv-chan-req", - 2254: "seispoc", - 2255: "vrtp", - 2256: "pcc-mfp", - 2257: "simple-tx-rx", - 2258: "rcts", - 2260: "apc-2260", - 2261: "comotionmaster", - 2262: "comotionback", - 2263: "ecwcfg", - 2264: "apx500api-1", - 2265: "apx500api-2", - 2266: "mfserver", - 2267: "ontobroker", - 2268: "amt", - 2269: "mikey", - 2270: "starschool", - 2271: "mmcals", - 2272: "mmcal", - 2273: "mysql-im", - 2274: "pcttunnell", - 2275: "ibridge-data", - 2276: "ibridge-mgmt", - 2277: "bluectrlproxy", - 2278: "s3db", - 2279: "xmquery", - 2280: "lnvpoller", - 2281: "lnvconsole", - 2282: "lnvalarm", - 2283: "lnvstatus", - 2284: "lnvmaps", - 2285: "lnvmailmon", - 2286: "nas-metering", - 2287: "dna", - 2288: "netml", - 2289: "dict-lookup", - 2290: "sonus-logging", - 2291: "eapsp", - 2292: "mib-streaming", - 2293: "npdbgmngr", - 2294: "konshus-lm", - 2295: "advant-lm", - 2296: "theta-lm", - 2297: "d2k-datamover1", - 2298: "d2k-datamover2", - 2299: "pc-telecommute", - 2300: "cvmmon", - 2301: "cpq-wbem", - 2302: "binderysupport", - 2303: "proxy-gateway", - 2304: "attachmate-uts", - 2305: "mt-scaleserver", - 2306: "tappi-boxnet", - 2307: "pehelp", - 2308: "sdhelp", - 2309: "sdserver", - 2310: "sdclient", - 2311: "messageservice", - 2312: "wanscaler", - 2313: "iapp", - 2314: "cr-websystems", - 2315: "precise-sft", - 2316: "sent-lm", - 2317: "attachmate-g32", - 2318: "cadencecontrol", - 2319: "infolibria", - 2320: "siebel-ns", - 2321: "rdlap", - 2322: "ofsd", - 2323: "3d-nfsd", - 2324: "cosmocall", - 2325: "ansysli", - 2326: "idcp", - 2327: "xingcsm", - 2328: "netrix-sftm", - 2329: "nvd", - 2330: "tscchat", - 2331: "agentview", - 2332: "rcc-host", - 2333: "snapp", - 2334: "ace-client", - 2335: "ace-proxy", - 2336: "appleugcontrol", - 2337: "ideesrv", - 2338: "norton-lambert", - 2339: "3com-webview", - 2340: "wrs-registry", - 2341: "xiostatus", - 2342: "manage-exec", - 2343: "nati-logos", - 2344: "fcmsys", - 2345: "dbm", - 2346: "redstorm-join", - 2347: "redstorm-find", - 2348: "redstorm-info", - 2349: "redstorm-diag", - 2350: "psbserver", - 2351: "psrserver", - 2352: "pslserver", - 2353: "pspserver", - 2354: "psprserver", - 2355: "psdbserver", - 2356: "gxtelmd", - 2357: "unihub-server", - 2358: "futrix", - 2359: "flukeserver", - 2360: "nexstorindltd", - 2361: "tl1", - 2362: "digiman", - 2363: "mediacntrlnfsd", - 2364: "oi-2000", - 2365: "dbref", - 2366: "qip-login", - 2367: "service-ctrl", - 2368: "opentable", - 2370: "l3-hbmon", - 2372: "lanmessenger", - 2381: "compaq-https", - 2382: "ms-olap3", - 2383: "ms-olap4", - 2384: "sd-capacity", - 2385: "sd-data", - 2386: "virtualtape", - 2387: "vsamredirector", - 2388: "mynahautostart", - 2389: "ovsessionmgr", - 2390: "rsmtp", - 2391: "3com-net-mgmt", - 2392: "tacticalauth", - 2393: "ms-olap1", - 2394: "ms-olap2", - 2395: "lan900-remote", - 2396: "wusage", - 2397: "ncl", - 2398: "orbiter", - 2399: "fmpro-fdal", - 2400: "opequus-server", - 2401: "cvspserver", - 2402: "taskmaster2000", - 2403: "taskmaster2000", - 2404: "iec-104", - 2405: "trc-netpoll", - 2406: "jediserver", - 2407: "orion", - 2409: "sns-protocol", - 2410: "vrts-registry", - 2411: "netwave-ap-mgmt", - 2412: "cdn", - 2413: "orion-rmi-reg", - 2414: "beeyond", - 2415: "codima-rtp", - 2416: "rmtserver", - 2417: "composit-server", - 2418: "cas", - 2419: "attachmate-s2s", - 2420: "dslremote-mgmt", - 2421: "g-talk", - 2422: "crmsbits", - 2423: "rnrp", - 2424: "kofax-svr", - 2425: "fjitsuappmgr", - 2426: "vcmp", - 2427: "mgcp-gateway", - 2428: "ott", - 2429: "ft-role", - 2430: "venus", - 2431: "venus-se", - 2432: "codasrv", - 2433: "codasrv-se", - 2434: "pxc-epmap", - 2435: "optilogic", - 2436: "topx", - 2437: "unicontrol", - 2438: "msp", - 2439: "sybasedbsynch", - 2440: "spearway", - 2441: "pvsw-inet", - 2442: "netangel", - 2443: "powerclientcsf", - 2444: "btpp2sectrans", - 2445: "dtn1", - 2446: "bues-service", - 2447: "ovwdb", - 2448: "hpppssvr", - 2449: "ratl", - 2450: "netadmin", - 2451: "netchat", - 2452: "snifferclient", - 2453: "madge-ltd", - 2454: "indx-dds", - 2455: "wago-io-system", - 2456: "altav-remmgt", - 2457: "rapido-ip", - 2458: "griffin", - 2459: "community", - 2460: "ms-theater", - 2461: "qadmifoper", - 2462: "qadmifevent", - 2463: "lsi-raid-mgmt", - 2464: "direcpc-si", - 2465: "lbm", - 2466: "lbf", - 2467: "high-criteria", - 2468: "qip-msgd", - 2469: "mti-tcs-comm", - 2470: "taskman-port", - 2471: "seaodbc", - 2472: "c3", - 2473: "aker-cdp", - 2474: "vitalanalysis", - 2475: "ace-server", - 2476: "ace-svr-prop", - 2477: "ssm-cvs", - 2478: "ssm-cssps", - 2479: "ssm-els", - 2480: "powerexchange", - 2481: "giop", - 2482: "giop-ssl", - 2483: "ttc", - 2484: "ttc-ssl", - 2485: "netobjects1", - 2486: "netobjects2", - 2487: "pns", - 2488: "moy-corp", - 2489: "tsilb", - 2490: "qip-qdhcp", - 2491: "conclave-cpp", - 2492: "groove", - 2493: "talarian-mqs", - 2494: "bmc-ar", - 2495: "fast-rem-serv", - 2496: "dirgis", - 2497: "quaddb", - 2498: "odn-castraq", - 2499: "unicontrol", - 2500: "rtsserv", - 2501: "rtsclient", - 2502: "kentrox-prot", - 2503: "nms-dpnss", - 2504: "wlbs", - 2505: "ppcontrol", - 2506: "jbroker", - 2507: "spock", - 2508: "jdatastore", - 2509: "fjmpss", - 2510: "fjappmgrbulk", - 2511: "metastorm", - 2512: "citrixima", - 2513: "citrixadmin", - 2514: "facsys-ntp", - 2515: "facsys-router", - 2516: "maincontrol", - 2517: "call-sig-trans", - 2518: "willy", - 2519: "globmsgsvc", - 2520: "pvsw", - 2521: "adaptecmgr", - 2522: "windb", - 2523: "qke-llc-v3", - 2524: "optiwave-lm", - 2525: "ms-v-worlds", - 2526: "ema-sent-lm", - 2527: "iqserver", - 2528: "ncr-ccl", - 2529: "utsftp", - 2530: "vrcommerce", - 2531: "ito-e-gui", - 2532: "ovtopmd", - 2533: "snifferserver", - 2534: "combox-web-acc", - 2535: "madcap", - 2536: "btpp2audctr1", - 2537: "upgrade", - 2538: "vnwk-prapi", - 2539: "vsiadmin", - 2540: "lonworks", - 2541: "lonworks2", - 2542: "udrawgraph", - 2543: "reftek", - 2544: "novell-zen", - 2545: "sis-emt", - 2546: "vytalvaultbrtp", - 2547: "vytalvaultvsmp", - 2548: "vytalvaultpipe", - 2549: "ipass", - 2550: "ads", - 2551: "isg-uda-server", - 2552: "call-logging", - 2553: "efidiningport", - 2554: "vcnet-link-v10", - 2555: "compaq-wcp", - 2556: "nicetec-nmsvc", - 2557: "nicetec-mgmt", - 2558: "pclemultimedia", - 2559: "lstp", - 2560: "labrat", - 2561: "mosaixcc", - 2562: "delibo", - 2563: "cti-redwood", - 2564: "hp-3000-telnet", - 2565: "coord-svr", - 2566: "pcs-pcw", - 2567: "clp", - 2568: "spamtrap", - 2569: "sonuscallsig", - 2570: "hs-port", - 2571: "cecsvc", - 2572: "ibp", - 2573: "trustestablish", - 2574: "blockade-bpsp", - 2575: "hl7", - 2576: "tclprodebugger", - 2577: "scipticslsrvr", - 2578: "rvs-isdn-dcp", - 2579: "mpfoncl", - 2580: "tributary", - 2581: "argis-te", - 2582: "argis-ds", - 2583: "mon", - 2584: "cyaserv", - 2585: "netx-server", - 2586: "netx-agent", - 2587: "masc", - 2588: "privilege", - 2589: "quartus-tcl", - 2590: "idotdist", - 2591: "maytagshuffle", - 2592: "netrek", - 2593: "mns-mail", - 2594: "dts", - 2595: "worldfusion1", - 2596: "worldfusion2", - 2597: "homesteadglory", - 2598: "citriximaclient", - 2599: "snapd", - 2600: "hpstgmgr", - 2601: "discp-client", - 2602: "discp-server", - 2603: "servicemeter", - 2604: "nsc-ccs", - 2605: "nsc-posa", - 2606: "netmon", - 2607: "connection", - 2608: "wag-service", - 2609: "system-monitor", - 2610: "versa-tek", - 2611: "lionhead", - 2612: "qpasa-agent", - 2613: "smntubootstrap", - 2614: "neveroffline", - 2615: "firepower", - 2616: "appswitch-emp", - 2617: "cmadmin", - 2618: "priority-e-com", - 2619: "bruce", - 2620: "lpsrecommender", - 2621: "miles-apart", - 2622: "metricadbc", - 2623: "lmdp", - 2624: "aria", - 2625: "blwnkl-port", - 2626: "gbjd816", - 2627: "moshebeeri", - 2628: "dict", - 2629: "sitaraserver", - 2630: "sitaramgmt", - 2631: "sitaradir", - 2632: "irdg-post", - 2633: "interintelli", - 2634: "pk-electronics", - 2635: "backburner", - 2636: "solve", - 2637: "imdocsvc", - 2638: "sybaseanywhere", - 2639: "aminet", - 2640: "ami-control", - 2641: "hdl-srv", - 2642: "tragic", - 2643: "gte-samp", - 2644: "travsoft-ipx-t", - 2645: "novell-ipx-cmd", - 2646: "and-lm", - 2647: "syncserver", - 2648: "upsnotifyprot", - 2649: "vpsipport", - 2650: "eristwoguns", - 2651: "ebinsite", - 2652: "interpathpanel", - 2653: "sonus", - 2654: "corel-vncadmin", - 2655: "unglue", - 2656: "kana", - 2657: "sns-dispatcher", - 2658: "sns-admin", - 2659: "sns-query", - 2660: "gcmonitor", - 2661: "olhost", - 2662: "bintec-capi", - 2663: "bintec-tapi", - 2664: "patrol-mq-gm", - 2665: "patrol-mq-nm", - 2666: "extensis", - 2667: "alarm-clock-s", - 2668: "alarm-clock-c", - 2669: "toad", - 2670: "tve-announce", - 2671: "newlixreg", - 2672: "nhserver", - 2673: "firstcall42", - 2674: "ewnn", - 2675: "ttc-etap", - 2676: "simslink", - 2677: "gadgetgate1way", - 2678: "gadgetgate2way", - 2679: "syncserverssl", - 2680: "pxc-sapxom", - 2681: "mpnjsomb", - 2683: "ncdloadbalance", - 2684: "mpnjsosv", - 2685: "mpnjsocl", - 2686: "mpnjsomg", - 2687: "pq-lic-mgmt", - 2688: "md-cg-http", - 2689: "fastlynx", - 2690: "hp-nnm-data", - 2691: "itinternet", - 2692: "admins-lms", - 2694: "pwrsevent", - 2695: "vspread", - 2696: "unifyadmin", - 2697: "oce-snmp-trap", - 2698: "mck-ivpip", - 2699: "csoft-plusclnt", - 2700: "tqdata", - 2701: "sms-rcinfo", - 2702: "sms-xfer", - 2703: "sms-chat", - 2704: "sms-remctrl", - 2705: "sds-admin", - 2706: "ncdmirroring", - 2707: "emcsymapiport", - 2708: "banyan-net", - 2709: "supermon", - 2710: "sso-service", - 2711: "sso-control", - 2712: "aocp", - 2713: "raventbs", - 2714: "raventdm", - 2715: "hpstgmgr2", - 2716: "inova-ip-disco", - 2717: "pn-requester", - 2718: "pn-requester2", - 2719: "scan-change", - 2720: "wkars", - 2721: "smart-diagnose", - 2722: "proactivesrvr", - 2723: "watchdog-nt", - 2724: "qotps", - 2725: "msolap-ptp2", - 2726: "tams", - 2727: "mgcp-callagent", - 2728: "sqdr", - 2729: "tcim-control", - 2730: "nec-raidplus", - 2731: "fyre-messanger", - 2732: "g5m", - 2733: "signet-ctf", - 2734: "ccs-software", - 2735: "netiq-mc", - 2736: "radwiz-nms-srv", - 2737: "srp-feedback", - 2738: "ndl-tcp-ois-gw", - 2739: "tn-timing", - 2740: "alarm", - 2741: "tsb", - 2742: "tsb2", - 2743: "murx", - 2744: "honyaku", - 2745: "urbisnet", - 2746: "cpudpencap", - 2747: "fjippol-swrly", - 2748: "fjippol-polsvr", - 2749: "fjippol-cnsl", - 2750: "fjippol-port1", - 2751: "fjippol-port2", - 2752: "rsisysaccess", - 2753: "de-spot", - 2754: "apollo-cc", - 2755: "expresspay", - 2756: "simplement-tie", - 2757: "cnrp", - 2758: "apollo-status", - 2759: "apollo-gms", - 2760: "sabams", - 2761: "dicom-iscl", - 2762: "dicom-tls", - 2763: "desktop-dna", - 2764: "data-insurance", - 2765: "qip-audup", - 2766: "compaq-scp", - 2767: "uadtc", - 2768: "uacs", - 2769: "exce", - 2770: "veronica", - 2771: "vergencecm", - 2772: "auris", - 2773: "rbakcup1", - 2774: "rbakcup2", - 2775: "smpp", - 2776: "ridgeway1", - 2777: "ridgeway2", - 2778: "gwen-sonya", - 2779: "lbc-sync", - 2780: "lbc-control", - 2781: "whosells", - 2782: "everydayrc", - 2783: "aises", - 2784: "www-dev", - 2785: "aic-np", - 2786: "aic-oncrpc", - 2787: "piccolo", - 2788: "fryeserv", - 2789: "media-agent", - 2790: "plgproxy", - 2791: "mtport-regist", - 2792: "f5-globalsite", - 2793: "initlsmsad", - 2795: "livestats", - 2796: "ac-tech", - 2797: "esp-encap", - 2798: "tmesis-upshot", - 2799: "icon-discover", - 2800: "acc-raid", - 2801: "igcp", - 2802: "veritas-udp1", - 2803: "btprjctrl", - 2804: "dvr-esm", - 2805: "wta-wsp-s", - 2806: "cspuni", - 2807: "cspmulti", - 2808: "j-lan-p", - 2809: "corbaloc", - 2810: "netsteward", - 2811: "gsiftp", - 2812: "atmtcp", - 2813: "llm-pass", - 2814: "llm-csv", - 2815: "lbc-measure", - 2816: "lbc-watchdog", - 2817: "nmsigport", - 2818: "rmlnk", - 2819: "fc-faultnotify", - 2820: "univision", - 2821: "vrts-at-port", - 2822: "ka0wuc", - 2823: "cqg-netlan", - 2824: "cqg-netlan-1", - 2826: "slc-systemlog", - 2827: "slc-ctrlrloops", - 2828: "itm-lm", - 2829: "silkp1", - 2830: "silkp2", - 2831: "silkp3", - 2832: "silkp4", - 2833: "glishd", - 2834: "evtp", - 2835: "evtp-data", - 2836: "catalyst", - 2837: "repliweb", - 2838: "starbot", - 2839: "nmsigport", - 2840: "l3-exprt", - 2841: "l3-ranger", - 2842: "l3-hawk", - 2843: "pdnet", - 2844: "bpcp-poll", - 2845: "bpcp-trap", - 2846: "aimpp-hello", - 2847: "aimpp-port-req", - 2848: "amt-blc-port", - 2849: "fxp", - 2850: "metaconsole", - 2851: "webemshttp", - 2852: "bears-01", - 2853: "ispipes", - 2854: "infomover", - 2856: "cesdinv", - 2857: "simctlp", - 2858: "ecnp", - 2859: "activememory", - 2860: "dialpad-voice1", - 2861: "dialpad-voice2", - 2862: "ttg-protocol", - 2863: "sonardata", - 2864: "astromed-main", - 2865: "pit-vpn", - 2866: "iwlistener", - 2867: "esps-portal", - 2868: "npep-messaging", - 2869: "icslap", - 2870: "daishi", - 2871: "msi-selectplay", - 2872: "radix", - 2874: "dxmessagebase1", - 2875: "dxmessagebase2", - 2876: "sps-tunnel", - 2877: "bluelance", - 2878: "aap", - 2879: "ucentric-ds", - 2880: "synapse", - 2881: "ndsp", - 2882: "ndtp", - 2883: "ndnp", - 2884: "flashmsg", - 2885: "topflow", - 2886: "responselogic", - 2887: "aironetddp", - 2888: "spcsdlobby", - 2889: "rsom", - 2890: "cspclmulti", - 2891: "cinegrfx-elmd", - 2892: "snifferdata", - 2893: "vseconnector", - 2894: "abacus-remote", - 2895: "natuslink", - 2896: "ecovisiong6-1", - 2897: "citrix-rtmp", - 2898: "appliance-cfg", - 2899: "powergemplus", - 2900: "quicksuite", - 2901: "allstorcns", - 2902: "netaspi", - 2903: "suitcase", - 2904: "m2ua", - 2906: "caller9", - 2907: "webmethods-b2b", - 2908: "mao", - 2909: "funk-dialout", - 2910: "tdaccess", - 2911: "blockade", - 2912: "epicon", - 2913: "boosterware", - 2914: "gamelobby", - 2915: "tksocket", - 2916: "elvin-server", - 2917: "elvin-client", - 2918: "kastenchasepad", - 2919: "roboer", - 2920: "roboeda", - 2921: "cesdcdman", - 2922: "cesdcdtrn", - 2923: "wta-wsp-wtp-s", - 2924: "precise-vip", - 2926: "mobile-file-dl", - 2927: "unimobilectrl", - 2928: "redstone-cpss", - 2929: "amx-webadmin", - 2930: "amx-weblinx", - 2931: "circle-x", - 2932: "incp", - 2933: "4-tieropmgw", - 2934: "4-tieropmcli", - 2935: "qtp", - 2936: "otpatch", - 2937: "pnaconsult-lm", - 2938: "sm-pas-1", - 2939: "sm-pas-2", - 2940: "sm-pas-3", - 2941: "sm-pas-4", - 2942: "sm-pas-5", - 2943: "ttnrepository", - 2944: "megaco-h248", - 2945: "h248-binary", - 2946: "fjsvmpor", - 2947: "gpsd", - 2948: "wap-push", - 2949: "wap-pushsecure", - 2950: "esip", - 2951: "ottp", - 2952: "mpfwsas", - 2953: "ovalarmsrv", - 2954: "ovalarmsrv-cmd", - 2955: "csnotify", - 2956: "ovrimosdbman", - 2957: "jmact5", - 2958: "jmact6", - 2959: "rmopagt", - 2960: "dfoxserver", - 2961: "boldsoft-lm", - 2962: "iph-policy-cli", - 2963: "iph-policy-adm", - 2964: "bullant-srap", - 2965: "bullant-rap", - 2966: "idp-infotrieve", - 2967: "ssc-agent", - 2968: "enpp", - 2969: "essp", - 2970: "index-net", - 2971: "netclip", - 2972: "pmsm-webrctl", - 2973: "svnetworks", - 2974: "signal", - 2975: "fjmpcm", - 2976: "cns-srv-port", - 2977: "ttc-etap-ns", - 2978: "ttc-etap-ds", - 2979: "h263-video", - 2980: "wimd", - 2981: "mylxamport", - 2982: "iwb-whiteboard", - 2983: "netplan", - 2984: "hpidsadmin", - 2985: "hpidsagent", - 2986: "stonefalls", - 2987: "identify", - 2988: "hippad", - 2989: "zarkov", - 2990: "boscap", - 2991: "wkstn-mon", - 2992: "avenyo", - 2993: "veritas-vis1", - 2994: "veritas-vis2", - 2995: "idrs", - 2996: "vsixml", - 2997: "rebol", - 2998: "realsecure", - 2999: "remoteware-un", - 3000: "hbci", - 3002: "exlm-agent", - 3003: "cgms", - 3004: "csoftragent", - 3005: "geniuslm", - 3006: "ii-admin", - 3007: "lotusmtap", - 3008: "midnight-tech", - 3009: "pxc-ntfy", - 3010: "ping-pong", - 3011: "trusted-web", - 3012: "twsdss", - 3013: "gilatskysurfer", - 3014: "broker-service", - 3015: "nati-dstp", - 3016: "notify-srvr", - 3017: "event-listener", - 3018: "srvc-registry", - 3019: "resource-mgr", - 3020: "cifs", - 3021: "agriserver", - 3022: "csregagent", - 3023: "magicnotes", - 3024: "nds-sso", - 3025: "arepa-raft", - 3026: "agri-gateway", - 3027: "LiebDevMgmt-C", - 3028: "LiebDevMgmt-DM", - 3029: "LiebDevMgmt-A", - 3030: "arepa-cas", - 3031: "eppc", - 3032: "redwood-chat", - 3033: "pdb", - 3034: "osmosis-aeea", - 3035: "fjsv-gssagt", - 3036: "hagel-dump", - 3037: "hp-san-mgmt", - 3038: "santak-ups", - 3039: "cogitate", - 3040: "tomato-springs", - 3041: "di-traceware", - 3042: "journee", - 3043: "brp", - 3044: "epp", - 3045: "responsenet", - 3046: "di-ase", - 3047: "hlserver", - 3048: "pctrader", - 3049: "nsws", - 3050: "gds-db", - 3051: "galaxy-server", - 3052: "apc-3052", - 3053: "dsom-server", - 3054: "amt-cnf-prot", - 3055: "policyserver", - 3056: "cdl-server", - 3057: "goahead-fldup", - 3058: "videobeans", - 3059: "qsoft", - 3060: "interserver", - 3061: "cautcpd", - 3062: "ncacn-ip-tcp", - 3063: "ncadg-ip-udp", - 3064: "rprt", - 3065: "slinterbase", - 3066: "netattachsdmp", - 3067: "fjhpjp", - 3068: "ls3bcast", - 3069: "ls3", - 3070: "mgxswitch", - 3072: "csd-monitor", - 3073: "vcrp", - 3074: "xbox", - 3075: "orbix-locator", - 3076: "orbix-config", - 3077: "orbix-loc-ssl", - 3078: "orbix-cfg-ssl", - 3079: "lv-frontpanel", - 3080: "stm-pproc", - 3081: "tl1-lv", - 3082: "tl1-raw", - 3083: "tl1-telnet", - 3084: "itm-mccs", - 3085: "pcihreq", - 3086: "jdl-dbkitchen", - 3087: "asoki-sma", - 3088: "xdtp", - 3089: "ptk-alink", - 3090: "stss", - 3091: "1ci-smcs", - 3093: "rapidmq-center", - 3094: "rapidmq-reg", - 3095: "panasas", - 3096: "ndl-aps", - 3098: "umm-port", - 3099: "chmd", - 3100: "opcon-xps", - 3101: "hp-pxpib", - 3102: "slslavemon", - 3103: "autocuesmi", - 3104: "autocuetime", - 3105: "cardbox", - 3106: "cardbox-http", - 3107: "business", - 3108: "geolocate", - 3109: "personnel", - 3110: "sim-control", - 3111: "wsynch", - 3112: "ksysguard", - 3113: "cs-auth-svr", - 3114: "ccmad", - 3115: "mctet-master", - 3116: "mctet-gateway", - 3117: "mctet-jserv", - 3118: "pkagent", - 3119: "d2000kernel", - 3120: "d2000webserver", - 3122: "vtr-emulator", - 3123: "edix", - 3124: "beacon-port", - 3125: "a13-an", - 3127: "ctx-bridge", - 3128: "ndl-aas", - 3129: "netport-id", - 3130: "icpv2", - 3131: "netbookmark", - 3132: "ms-rule-engine", - 3133: "prism-deploy", - 3134: "ecp", - 3135: "peerbook-port", - 3136: "grubd", - 3137: "rtnt-1", - 3138: "rtnt-2", - 3139: "incognitorv", - 3140: "ariliamulti", - 3141: "vmodem", - 3142: "rdc-wh-eos", - 3143: "seaview", - 3144: "tarantella", - 3145: "csi-lfap", - 3146: "bears-02", - 3147: "rfio", - 3148: "nm-game-admin", - 3149: "nm-game-server", - 3150: "nm-asses-admin", - 3151: "nm-assessor", - 3152: "feitianrockey", - 3153: "s8-client-port", - 3154: "ccmrmi", - 3155: "jpegmpeg", - 3156: "indura", - 3157: "e3consultants", - 3158: "stvp", - 3159: "navegaweb-port", - 3160: "tip-app-server", - 3161: "doc1lm", - 3162: "sflm", - 3163: "res-sap", - 3164: "imprs", - 3165: "newgenpay", - 3166: "sossecollector", - 3167: "nowcontact", - 3168: "poweronnud", - 3169: "serverview-as", - 3170: "serverview-asn", - 3171: "serverview-gf", - 3172: "serverview-rm", - 3173: "serverview-icc", - 3174: "armi-server", - 3175: "t1-e1-over-ip", - 3176: "ars-master", - 3177: "phonex-port", - 3178: "radclientport", - 3179: "h2gf-w-2m", - 3180: "mc-brk-srv", - 3181: "bmcpatrolagent", - 3182: "bmcpatrolrnvu", - 3183: "cops-tls", - 3184: "apogeex-port", - 3185: "smpppd", - 3186: "iiw-port", - 3187: "odi-port", - 3188: "brcm-comm-port", - 3189: "pcle-infex", - 3190: "csvr-proxy", - 3191: "csvr-sslproxy", - 3192: "firemonrcc", - 3193: "spandataport", - 3194: "magbind", - 3195: "ncu-1", - 3196: "ncu-2", - 3197: "embrace-dp-s", - 3198: "embrace-dp-c", - 3199: "dmod-workspace", - 3200: "tick-port", - 3201: "cpq-tasksmart", - 3202: "intraintra", - 3203: "netwatcher-mon", - 3204: "netwatcher-db", - 3205: "isns", - 3206: "ironmail", - 3207: "vx-auth-port", - 3208: "pfu-prcallback", - 3209: "netwkpathengine", - 3210: "flamenco-proxy", - 3211: "avsecuremgmt", - 3212: "surveyinst", - 3213: "neon24x7", - 3214: "jmq-daemon-1", - 3215: "jmq-daemon-2", - 3216: "ferrari-foam", - 3217: "unite", - 3218: "smartpackets", - 3219: "wms-messenger", - 3220: "xnm-ssl", - 3221: "xnm-clear-text", - 3222: "glbp", - 3223: "digivote", - 3224: "aes-discovery", - 3225: "fcip-port", - 3226: "isi-irp", - 3227: "dwnmshttp", - 3228: "dwmsgserver", - 3229: "global-cd-port", - 3230: "sftdst-port", - 3231: "vidigo", - 3232: "mdtp", - 3233: "whisker", - 3234: "alchemy", - 3235: "mdap-port", - 3236: "apparenet-ts", - 3237: "apparenet-tps", - 3238: "apparenet-as", - 3239: "apparenet-ui", - 3240: "triomotion", - 3241: "sysorb", - 3242: "sdp-id-port", - 3243: "timelot", - 3244: "onesaf", - 3245: "vieo-fe", - 3246: "dvt-system", - 3247: "dvt-data", - 3248: "procos-lm", - 3249: "ssp", - 3250: "hicp", - 3251: "sysscanner", - 3252: "dhe", - 3253: "pda-data", - 3254: "pda-sys", - 3255: "semaphore", - 3256: "cpqrpm-agent", - 3257: "cpqrpm-server", - 3258: "ivecon-port", - 3259: "epncdp2", - 3260: "iscsi-target", - 3261: "winshadow", - 3262: "necp", - 3263: "ecolor-imager", - 3264: "ccmail", - 3265: "altav-tunnel", - 3266: "ns-cfg-server", - 3267: "ibm-dial-out", - 3268: "msft-gc", - 3269: "msft-gc-ssl", - 3270: "verismart", - 3271: "csoft-prev", - 3272: "user-manager", - 3273: "sxmp", - 3274: "ordinox-server", - 3275: "samd", - 3276: "maxim-asics", - 3277: "awg-proxy", - 3278: "lkcmserver", - 3279: "admind", - 3280: "vs-server", - 3281: "sysopt", - 3282: "datusorb", - 3283: "Apple Remote Desktop (Net Assistant)", - 3284: "4talk", - 3285: "plato", - 3286: "e-net", - 3287: "directvdata", - 3288: "cops", - 3289: "enpc", - 3290: "caps-lm", - 3291: "sah-lm", - 3292: "cart-o-rama", - 3293: "fg-fps", - 3294: "fg-gip", - 3295: "dyniplookup", - 3296: "rib-slm", - 3297: "cytel-lm", - 3298: "deskview", - 3299: "pdrncs", - 3302: "mcs-fastmail", - 3303: "opsession-clnt", - 3304: "opsession-srvr", - 3305: "odette-ftp", - 3306: "mysql", - 3307: "opsession-prxy", - 3308: "tns-server", - 3309: "tns-adv", - 3310: "dyna-access", - 3311: "mcns-tel-ret", - 3312: "appman-server", - 3313: "uorb", - 3314: "uohost", - 3315: "cdid", - 3316: "aicc-cmi", - 3317: "vsaiport", - 3318: "ssrip", - 3319: "sdt-lmd", - 3320: "officelink2000", - 3321: "vnsstr", - 3326: "sftu", - 3327: "bbars", - 3328: "egptlm", - 3329: "hp-device-disc", - 3330: "mcs-calypsoicf", - 3331: "mcs-messaging", - 3332: "mcs-mailsvr", - 3333: "dec-notes", - 3334: "directv-web", - 3335: "directv-soft", - 3336: "directv-tick", - 3337: "directv-catlg", - 3338: "anet-b", - 3339: "anet-l", - 3340: "anet-m", - 3341: "anet-h", - 3342: "webtie", - 3343: "ms-cluster-net", - 3344: "bnt-manager", - 3345: "influence", - 3346: "trnsprntproxy", - 3347: "phoenix-rpc", - 3348: "pangolin-laser", - 3349: "chevinservices", - 3350: "findviatv", - 3351: "btrieve", - 3352: "ssql", - 3353: "fatpipe", - 3354: "suitjd", - 3355: "ordinox-dbase", - 3356: "upnotifyps", - 3357: "adtech-test", - 3358: "mpsysrmsvr", - 3359: "wg-netforce", - 3360: "kv-server", - 3361: "kv-agent", - 3362: "dj-ilm", - 3363: "nati-vi-server", - 3364: "creativeserver", - 3365: "contentserver", - 3366: "creativepartnr", - 3372: "tip2", - 3373: "lavenir-lm", - 3374: "cluster-disc", - 3375: "vsnm-agent", - 3376: "cdbroker", - 3377: "cogsys-lm", - 3378: "wsicopy", - 3379: "socorfs", - 3380: "sns-channels", - 3381: "geneous", - 3382: "fujitsu-neat", - 3383: "esp-lm", - 3384: "hp-clic", - 3385: "qnxnetman", - 3386: "gprs-sig", - 3387: "backroomnet", - 3388: "cbserver", - 3389: "ms-wbt-server", - 3390: "dsc", - 3391: "savant", - 3392: "efi-lm", - 3393: "d2k-tapestry1", - 3394: "d2k-tapestry2", - 3395: "dyna-lm", - 3396: "printer-agent", - 3397: "cloanto-lm", - 3398: "mercantile", - 3399: "csms", - 3400: "csms2", - 3401: "filecast", - 3402: "fxaengine-net", - 3405: "nokia-ann-ch1", - 3406: "nokia-ann-ch2", - 3407: "ldap-admin", - 3408: "BESApi", - 3409: "networklens", - 3410: "networklenss", - 3411: "biolink-auth", - 3412: "xmlblaster", - 3413: "svnet", - 3414: "wip-port", - 3415: "bcinameservice", - 3416: "commandport", - 3417: "csvr", - 3418: "rnmap", - 3419: "softaudit", - 3420: "ifcp-port", - 3421: "bmap", - 3422: "rusb-sys-port", - 3423: "xtrm", - 3424: "xtrms", - 3425: "agps-port", - 3426: "arkivio", - 3427: "websphere-snmp", - 3428: "twcss", - 3429: "gcsp", - 3430: "ssdispatch", - 3431: "ndl-als", - 3432: "osdcp", - 3433: "opnet-smp", - 3434: "opencm", - 3435: "pacom", - 3436: "gc-config", - 3437: "autocueds", - 3438: "spiral-admin", - 3439: "hri-port", - 3440: "ans-console", - 3441: "connect-client", - 3442: "connect-server", - 3443: "ov-nnm-websrv", - 3444: "denali-server", - 3445: "monp", - 3446: "3comfaxrpc", - 3447: "directnet", - 3448: "dnc-port", - 3449: "hotu-chat", - 3450: "castorproxy", - 3451: "asam", - 3452: "sabp-signal", - 3453: "pscupd", - 3454: "mira", - 3455: "prsvp", - 3456: "vat", - 3457: "vat-control", - 3458: "d3winosfi", - 3459: "integral", - 3460: "edm-manager", - 3461: "edm-stager", - 3462: "edm-std-notify", - 3463: "edm-adm-notify", - 3464: "edm-mgr-sync", - 3465: "edm-mgr-cntrl", - 3466: "workflow", - 3467: "rcst", - 3468: "ttcmremotectrl", - 3469: "pluribus", - 3470: "jt400", - 3471: "jt400-ssl", - 3472: "jaugsremotec-1", - 3473: "jaugsremotec-2", - 3474: "ttntspauto", - 3475: "genisar-port", - 3476: "nppmp", - 3477: "ecomm", - 3478: "stun", - 3479: "twrpc", - 3480: "plethora", - 3481: "cleanerliverc", - 3482: "vulture", - 3483: "slim-devices", - 3484: "gbs-stp", - 3485: "celatalk", - 3486: "ifsf-hb-port", - 3487: "ltcudp", - 3488: "fs-rh-srv", - 3489: "dtp-dia", - 3490: "colubris", - 3491: "swr-port", - 3492: "tvdumtray-port", - 3493: "nut", - 3494: "ibm3494", - 3495: "seclayer-tcp", - 3496: "seclayer-tls", - 3497: "ipether232port", - 3498: "dashpas-port", - 3499: "sccip-media", - 3500: "rtmp-port", - 3501: "isoft-p2p", - 3502: "avinstalldisc", - 3503: "lsp-ping", - 3504: "ironstorm", - 3505: "ccmcomm", - 3506: "apc-3506", - 3507: "nesh-broker", - 3508: "interactionweb", - 3509: "vt-ssl", - 3510: "xss-port", - 3511: "webmail-2", - 3512: "aztec", - 3513: "arcpd", - 3514: "must-p2p", - 3515: "must-backplane", - 3516: "smartcard-port", - 3517: "802-11-iapp", - 3518: "artifact-msg", - 3519: "galileo", - 3520: "galileolog", - 3521: "mc3ss", - 3522: "nssocketport", - 3523: "odeumservlink", - 3524: "ecmport", - 3525: "eisport", - 3526: "starquiz-port", - 3527: "beserver-msg-q", - 3528: "jboss-iiop", - 3529: "jboss-iiop-ssl", - 3530: "gf", - 3531: "joltid", - 3532: "raven-rmp", - 3533: "raven-rdp", - 3534: "urld-port", - 3535: "ms-la", - 3536: "snac", - 3537: "ni-visa-remote", - 3538: "ibm-diradm", - 3539: "ibm-diradm-ssl", - 3540: "pnrp-port", - 3541: "voispeed-port", - 3542: "hacl-monitor", - 3543: "qftest-lookup", - 3544: "teredo", - 3545: "camac", - 3547: "symantec-sim", - 3548: "interworld", - 3549: "tellumat-nms", - 3550: "ssmpp", - 3551: "apcupsd", - 3552: "taserver", - 3553: "rbr-discovery", - 3554: "questnotify", - 3555: "razor", - 3556: "sky-transport", - 3557: "personalos-001", - 3558: "mcp-port", - 3559: "cctv-port", - 3560: "iniserve-port", - 3561: "bmc-onekey", - 3562: "sdbproxy", - 3563: "watcomdebug", - 3564: "esimport", - 3567: "dof-eps", - 3568: "dof-tunnel-sec", - 3569: "mbg-ctrl", - 3570: "mccwebsvr-port", - 3571: "megardsvr-port", - 3572: "megaregsvrport", - 3573: "tag-ups-1", - 3574: "dmaf-caster", - 3575: "ccm-port", - 3576: "cmc-port", - 3577: "config-port", - 3578: "data-port", - 3579: "ttat3lb", - 3580: "nati-svrloc", - 3581: "kfxaclicensing", - 3582: "press", - 3583: "canex-watch", - 3584: "u-dbap", - 3585: "emprise-lls", - 3586: "emprise-lsc", - 3587: "p2pgroup", - 3588: "sentinel", - 3589: "isomair", - 3590: "wv-csp-sms", - 3591: "gtrack-server", - 3592: "gtrack-ne", - 3593: "bpmd", - 3594: "mediaspace", - 3595: "shareapp", - 3596: "iw-mmogame", - 3597: "a14", - 3598: "a15", - 3599: "quasar-server", - 3600: "trap-daemon", - 3601: "visinet-gui", - 3602: "infiniswitchcl", - 3603: "int-rcv-cntrl", - 3604: "bmc-jmx-port", - 3605: "comcam-io", - 3606: "splitlock", - 3607: "precise-i3", - 3608: "trendchip-dcp", - 3609: "cpdi-pidas-cm", - 3610: "echonet", - 3611: "six-degrees", - 3612: "hp-dataprotect", - 3613: "alaris-disc", - 3614: "sigma-port", - 3615: "start-network", - 3616: "cd3o-protocol", - 3617: "sharp-server", - 3618: "aairnet-1", - 3619: "aairnet-2", - 3620: "ep-pcp", - 3621: "ep-nsp", - 3622: "ff-lr-port", - 3623: "haipe-discover", - 3624: "dist-upgrade", - 3625: "volley", - 3626: "bvcdaemon-port", - 3627: "jamserverport", - 3628: "ept-machine", - 3629: "escvpnet", - 3630: "cs-remote-db", - 3631: "cs-services", - 3632: "distcc", - 3633: "wacp", - 3634: "hlibmgr", - 3635: "sdo", - 3636: "servistaitsm", - 3637: "scservp", - 3638: "ehp-backup", - 3639: "xap-ha", - 3640: "netplay-port1", - 3641: "netplay-port2", - 3642: "juxml-port", - 3643: "audiojuggler", - 3644: "ssowatch", - 3645: "cyc", - 3646: "xss-srv-port", - 3647: "splitlock-gw", - 3648: "fjcp", - 3649: "nmmp", - 3650: "prismiq-plugin", - 3651: "xrpc-registry", - 3652: "vxcrnbuport", - 3653: "tsp", - 3654: "vaprtm", - 3655: "abatemgr", - 3656: "abatjss", - 3657: "immedianet-bcn", - 3658: "ps-ams", - 3659: "apple-sasl", - 3660: "can-nds-ssl", - 3661: "can-ferret-ssl", - 3662: "pserver", - 3663: "dtp", - 3664: "ups-engine", - 3665: "ent-engine", - 3666: "eserver-pap", - 3667: "infoexch", - 3668: "dell-rm-port", - 3669: "casanswmgmt", - 3670: "smile", - 3671: "efcp", - 3672: "lispworks-orb", - 3673: "mediavault-gui", - 3674: "wininstall-ipc", - 3675: "calltrax", - 3676: "va-pacbase", - 3677: "roverlog", - 3678: "ipr-dglt", - 3679: "Escale (Newton Dock)", - 3680: "npds-tracker", - 3681: "bts-x73", - 3682: "cas-mapi", - 3683: "bmc-ea", - 3684: "faxstfx-port", - 3685: "dsx-agent", - 3686: "tnmpv2", - 3687: "simple-push", - 3688: "simple-push-s", - 3689: "daap", - 3690: "svn", - 3691: "magaya-network", - 3692: "intelsync", - 3695: "bmc-data-coll", - 3696: "telnetcpcd", - 3697: "nw-license", - 3698: "sagectlpanel", - 3699: "kpn-icw", - 3700: "lrs-paging", - 3701: "netcelera", - 3702: "ws-discovery", - 3703: "adobeserver-3", - 3704: "adobeserver-4", - 3705: "adobeserver-5", - 3706: "rt-event", - 3707: "rt-event-s", - 3708: "sun-as-iiops", - 3709: "ca-idms", - 3710: "portgate-auth", - 3711: "edb-server2", - 3712: "sentinel-ent", - 3713: "tftps", - 3714: "delos-dms", - 3715: "anoto-rendezv", - 3716: "wv-csp-sms-cir", - 3717: "wv-csp-udp-cir", - 3718: "opus-services", - 3719: "itelserverport", - 3720: "ufastro-instr", - 3721: "xsync", - 3722: "xserveraid", - 3723: "sychrond", - 3724: "blizwow", - 3725: "na-er-tip", - 3726: "array-manager", - 3727: "e-mdu", - 3728: "e-woa", - 3729: "fksp-audit", - 3730: "client-ctrl", - 3731: "smap", - 3732: "m-wnn", - 3733: "multip-msg", - 3734: "synel-data", - 3735: "pwdis", - 3736: "rs-rmi", - 3738: "versatalk", - 3739: "launchbird-lm", - 3740: "heartbeat", - 3741: "wysdma", - 3742: "cst-port", - 3743: "ipcs-command", - 3744: "sasg", - 3745: "gw-call-port", - 3746: "linktest", - 3747: "linktest-s", - 3748: "webdata", - 3749: "cimtrak", - 3750: "cbos-ip-port", - 3751: "gprs-cube", - 3752: "vipremoteagent", - 3753: "nattyserver", - 3754: "timestenbroker", - 3755: "sas-remote-hlp", - 3756: "canon-capt", - 3757: "grf-port", - 3758: "apw-registry", - 3759: "exapt-lmgr", - 3760: "adtempusclient", - 3761: "gsakmp", - 3762: "gbs-smp", - 3763: "xo-wave", - 3764: "mni-prot-rout", - 3765: "rtraceroute", - 3767: "listmgr-port", - 3768: "rblcheckd", - 3769: "haipe-otnk", - 3770: "cindycollab", - 3771: "paging-port", - 3772: "ctp", - 3773: "ctdhercules", - 3774: "zicom", - 3775: "ispmmgr", - 3776: "dvcprov-port", - 3777: "jibe-eb", - 3778: "c-h-it-port", - 3779: "cognima", - 3780: "nnp", - 3781: "abcvoice-port", - 3782: "iso-tp0s", - 3783: "bim-pem", - 3784: "bfd-control", - 3785: "bfd-echo", - 3786: "upstriggervsw", - 3787: "fintrx", - 3788: "isrp-port", - 3789: "remotedeploy", - 3790: "quickbooksrds", - 3791: "tvnetworkvideo", - 3792: "sitewatch", - 3793: "dcsoftware", - 3794: "jaus", - 3795: "myblast", - 3796: "spw-dialer", - 3797: "idps", - 3798: "minilock", - 3799: "radius-dynauth", - 3800: "pwgpsi", - 3801: "ibm-mgr", - 3802: "vhd", - 3803: "soniqsync", - 3804: "iqnet-port", - 3805: "tcpdataserver", - 3806: "wsmlb", - 3807: "spugna", - 3808: "sun-as-iiops-ca", - 3809: "apocd", - 3810: "wlanauth", - 3811: "amp", - 3812: "neto-wol-server", - 3813: "rap-ip", - 3814: "neto-dcs", - 3815: "lansurveyorxml", - 3816: "sunlps-http", - 3817: "tapeware", - 3818: "crinis-hb", - 3819: "epl-slp", - 3820: "scp", - 3821: "pmcp", - 3822: "acp-discovery", - 3823: "acp-conduit", - 3824: "acp-policy", - 3825: "ffserver", - 3826: "warmux", - 3827: "netmpi", - 3828: "neteh", - 3829: "neteh-ext", - 3830: "cernsysmgmtagt", - 3831: "dvapps", - 3832: "xxnetserver", - 3833: "aipn-auth", - 3834: "spectardata", - 3835: "spectardb", - 3836: "markem-dcp", - 3837: "mkm-discovery", - 3838: "sos", - 3839: "amx-rms", - 3840: "flirtmitmir", - 3842: "nhci", - 3843: "quest-agent", - 3844: "rnm", - 3845: "v-one-spp", - 3846: "an-pcp", - 3847: "msfw-control", - 3848: "item", - 3849: "spw-dnspreload", - 3850: "qtms-bootstrap", - 3851: "spectraport", - 3852: "sse-app-config", - 3853: "sscan", - 3854: "stryker-com", - 3855: "opentrac", - 3856: "informer", - 3857: "trap-port", - 3858: "trap-port-mom", - 3859: "nav-port", - 3860: "sasp", - 3861: "winshadow-hd", - 3862: "giga-pocket", - 3863: "asap-udp", - 3865: "xpl", - 3866: "dzdaemon", - 3867: "dzoglserver", - 3869: "ovsam-mgmt", - 3870: "ovsam-d-agent", - 3871: "avocent-adsap", - 3872: "oem-agent", - 3873: "fagordnc", - 3874: "sixxsconfig", - 3875: "pnbscada", - 3876: "dl-agent", - 3877: "xmpcr-interface", - 3878: "fotogcad", - 3879: "appss-lm", - 3880: "igrs", - 3881: "idac", - 3882: "msdts1", - 3883: "vrpn", - 3884: "softrack-meter", - 3885: "topflow-ssl", - 3886: "nei-management", - 3887: "ciphire-data", - 3888: "ciphire-serv", - 3889: "dandv-tester", - 3890: "ndsconnect", - 3891: "rtc-pm-port", - 3892: "pcc-image-port", - 3893: "cgi-starapi", - 3894: "syam-agent", - 3895: "syam-smc", - 3896: "sdo-tls", - 3897: "sdo-ssh", - 3898: "senip", - 3899: "itv-control", - 3900: "udt-os", - 3901: "nimsh", - 3902: "nimaux", - 3903: "charsetmgr", - 3904: "omnilink-port", - 3905: "mupdate", - 3906: "topovista-data", - 3907: "imoguia-port", - 3908: "hppronetman", - 3909: "surfcontrolcpa", - 3910: "prnrequest", - 3911: "prnstatus", - 3912: "gbmt-stars", - 3913: "listcrt-port", - 3914: "listcrt-port-2", - 3915: "agcat", - 3916: "wysdmc", - 3917: "aftmux", - 3918: "pktcablemmcops", - 3919: "hyperip", - 3920: "exasoftport1", - 3921: "herodotus-net", - 3922: "sor-update", - 3923: "symb-sb-port", - 3924: "mpl-gprs-port", - 3925: "zmp", - 3926: "winport", - 3927: "natdataservice", - 3928: "netboot-pxe", - 3929: "smauth-port", - 3930: "syam-webserver", - 3931: "msr-plugin-port", - 3932: "dyn-site", - 3933: "plbserve-port", - 3934: "sunfm-port", - 3935: "sdp-portmapper", - 3936: "mailprox", - 3937: "dvbservdsc", - 3938: "dbcontrol-agent", - 3939: "aamp", - 3940: "xecp-node", - 3941: "homeportal-web", - 3942: "srdp", - 3943: "tig", - 3944: "sops", - 3945: "emcads", - 3946: "backupedge", - 3947: "ccp", - 3948: "apdap", - 3949: "drip", - 3950: "namemunge", - 3951: "pwgippfax", - 3952: "i3-sessionmgr", - 3953: "xmlink-connect", - 3954: "adrep", - 3955: "p2pcommunity", - 3956: "gvcp", - 3957: "mqe-broker", - 3958: "mqe-agent", - 3959: "treehopper", - 3960: "bess", - 3961: "proaxess", - 3962: "sbi-agent", - 3963: "thrp", - 3964: "sasggprs", - 3965: "ati-ip-to-ncpe", - 3966: "bflckmgr", - 3967: "ppsms", - 3968: "ianywhere-dbns", - 3969: "landmarks", - 3970: "lanrevagent", - 3971: "lanrevserver", - 3972: "iconp", - 3973: "progistics", - 3974: "citysearch", - 3975: "airshot", - 3976: "opswagent", - 3977: "opswmanager", - 3978: "secure-cfg-svr", - 3979: "smwan", - 3980: "acms", - 3981: "starfish", - 3982: "eis", - 3983: "eisp", - 3984: "mapper-nodemgr", - 3985: "mapper-mapethd", - 3986: "mapper-ws-ethd", - 3987: "centerline", - 3988: "dcs-config", - 3989: "bv-queryengine", - 3990: "bv-is", - 3991: "bv-smcsrv", - 3992: "bv-ds", - 3993: "bv-agent", - 3995: "iss-mgmt-ssl", - 3996: "abcsoftware", - 3997: "agentsease-db", - 3998: "dnx", - 3999: "nvcnet", - 4000: "terabase", - 4001: "newoak", - 4002: "pxc-spvr-ft", - 4003: "pxc-splr-ft", - 4004: "pxc-roid", - 4005: "pxc-pin", - 4006: "pxc-spvr", - 4007: "pxc-splr", - 4008: "netcheque", - 4009: "chimera-hwm", - 4010: "samsung-unidex", - 4011: "altserviceboot", - 4012: "pda-gate", - 4013: "acl-manager", - 4014: "taiclock", - 4015: "talarian-mcast1", - 4016: "talarian-mcast2", - 4017: "talarian-mcast3", - 4018: "talarian-mcast4", - 4019: "talarian-mcast5", - 4020: "trap", - 4021: "nexus-portal", - 4022: "dnox", - 4023: "esnm-zoning", - 4024: "tnp1-port", - 4025: "partimage", - 4026: "as-debug", - 4027: "bxp", - 4028: "dtserver-port", - 4029: "ip-qsig", - 4030: "jdmn-port", - 4031: "suucp", - 4032: "vrts-auth-port", - 4033: "sanavigator", - 4034: "ubxd", - 4035: "wap-push-http", - 4036: "wap-push-https", - 4037: "ravehd", - 4038: "fazzt-ptp", - 4039: "fazzt-admin", - 4040: "yo-main", - 4041: "houston", - 4042: "ldxp", - 4043: "nirp", - 4044: "ltp", - 4045: "npp", - 4046: "acp-proto", - 4047: "ctp-state", - 4049: "wafs", - 4050: "cisco-wafs", - 4051: "cppdp", - 4052: "interact", - 4053: "ccu-comm-1", - 4054: "ccu-comm-2", - 4055: "ccu-comm-3", - 4056: "lms", - 4057: "wfm", - 4058: "kingfisher", - 4059: "dlms-cosem", - 4060: "dsmeter-iatc", - 4061: "ice-location", - 4062: "ice-slocation", - 4063: "ice-router", - 4064: "ice-srouter", - 4065: "avanti-cdp", - 4066: "pmas", - 4067: "idp", - 4068: "ipfltbcst", - 4069: "minger", - 4070: "tripe", - 4071: "aibkup", - 4072: "zieto-sock", - 4073: "iRAPP", - 4074: "cequint-cityid", - 4075: "perimlan", - 4076: "seraph", - 4077: "ascomalarm", - 4079: "santools", - 4080: "lorica-in", - 4081: "lorica-in-sec", - 4082: "lorica-out", - 4083: "lorica-out-sec", - 4084: "fortisphere-vm", - 4086: "ftsync", - 4089: "opencore", - 4090: "omasgport", - 4091: "ewinstaller", - 4092: "ewdgs", - 4093: "pvxpluscs", - 4094: "sysrqd", - 4095: "xtgui", - 4096: "bre", - 4097: "patrolview", - 4098: "drmsfsd", - 4099: "dpcp", - 4100: "igo-incognito", - 4101: "brlp-0", - 4102: "brlp-1", - 4103: "brlp-2", - 4104: "brlp-3", - 4105: "shofar", - 4106: "synchronite", - 4107: "j-ac", - 4108: "accel", - 4109: "izm", - 4110: "g2tag", - 4111: "xgrid", - 4112: "apple-vpns-rp", - 4113: "aipn-reg", - 4114: "jomamqmonitor", - 4115: "cds", - 4116: "smartcard-tls", - 4117: "hillrserv", - 4118: "netscript", - 4119: "assuria-slm", - 4121: "e-builder", - 4122: "fprams", - 4123: "z-wave", - 4124: "tigv2", - 4125: "opsview-envoy", - 4126: "ddrepl", - 4127: "unikeypro", - 4128: "nufw", - 4129: "nuauth", - 4130: "fronet", - 4131: "stars", - 4132: "nuts-dem", - 4133: "nuts-bootp", - 4134: "nifty-hmi", - 4135: "cl-db-attach", - 4136: "cl-db-request", - 4137: "cl-db-remote", - 4138: "nettest", - 4139: "thrtx", - 4140: "cedros-fds", - 4141: "oirtgsvc", - 4142: "oidocsvc", - 4143: "oidsr", - 4145: "vvr-control", - 4146: "tgcconnect", - 4147: "vrxpservman", - 4148: "hhb-handheld", - 4149: "agslb", - 4150: "PowerAlert-nsa", - 4151: "menandmice-noh", - 4152: "idig-mux", - 4153: "mbl-battd", - 4154: "atlinks", - 4155: "bzr", - 4156: "stat-results", - 4157: "stat-scanner", - 4158: "stat-cc", - 4159: "nss", - 4160: "jini-discovery", - 4161: "omscontact", - 4162: "omstopology", - 4163: "silverpeakpeer", - 4164: "silverpeakcomm", - 4165: "altcp", - 4166: "joost", - 4167: "ddgn", - 4168: "pslicser", - 4169: "iadt-disc", - 4172: "pcoip", - 4173: "mma-discovery", - 4174: "sm-disc", - 4177: "wello", - 4178: "storman", - 4179: "MaxumSP", - 4180: "httpx", - 4181: "macbak", - 4182: "pcptcpservice", - 4183: "cyborgnet", - 4184: "universe-suite", - 4185: "wcpp", - 4188: "vatata", - 4191: "dsmipv6", - 4192: "azeti-bd", - 4197: "hctl", - 4199: "eims-admin", - 4300: "corelccam", - 4301: "d-data", - 4302: "d-data-control", - 4303: "srcp", - 4304: "owserver", - 4305: "batman", - 4306: "pinghgl", - 4307: "trueconf", - 4308: "compx-lockview", - 4309: "dserver", - 4310: "mirrtex", - 4320: "fdt-rcatp", - 4321: "rwhois", - 4322: "trim-event", - 4323: "trim-ice", - 4325: "geognosisman", - 4326: "geognosis", - 4327: "jaxer-web", - 4328: "jaxer-manager", - 4333: "ahsp", - 4340: "gaia", - 4341: "lisp-data", - 4342: "lisp-control", - 4343: "unicall", - 4344: "vinainstall", - 4345: "m4-network-as", - 4346: "elanlm", - 4347: "lansurveyor", - 4348: "itose", - 4349: "fsportmap", - 4350: "net-device", - 4351: "plcy-net-svcs", - 4352: "pjlink", - 4353: "f5-iquery", - 4354: "qsnet-trans", - 4355: "qsnet-workst", - 4356: "qsnet-assist", - 4357: "qsnet-cond", - 4358: "qsnet-nucl", - 4359: "omabcastltkm", - 4361: "nacnl", - 4362: "afore-vdp-disc", - 4366: "shadowstream", - 4368: "wxbrief", - 4369: "epmd", - 4370: "elpro-tunnel", - 4371: "l2c-disc", - 4372: "l2c-data", - 4373: "remctl", - 4375: "tolteces", - 4376: "bip", - 4377: "cp-spxsvr", - 4378: "cp-spxdpy", - 4379: "ctdb", - 4389: "xandros-cms", - 4390: "wiegand", - 4394: "apwi-disc", - 4395: "omnivisionesx", - 4400: "ds-srv", - 4401: "ds-srvr", - 4402: "ds-clnt", - 4403: "ds-user", - 4404: "ds-admin", - 4405: "ds-mail", - 4406: "ds-slp", - 4412: "smallchat", - 4413: "avi-nms-disc", - 4416: "pjj-player-disc", - 4418: "axysbridge", - 4420: "nvm-express", - 4425: "netrockey6", - 4426: "beacon-port-2", - 4430: "rsqlserver", - 4432: "l-acoustics", - 4441: "netblox", - 4442: "saris", - 4443: "pharos", - 4444: "krb524", - 4445: "upnotifyp", - 4446: "n1-fwp", - 4447: "n1-rmgmt", - 4448: "asc-slmd", - 4449: "privatewire", - 4450: "camp", - 4451: "ctisystemmsg", - 4452: "ctiprogramload", - 4453: "nssalertmgr", - 4454: "nssagentmgr", - 4455: "prchat-user", - 4456: "prchat-server", - 4457: "prRegister", - 4458: "mcp", - 4484: "hpssmgmt", - 4486: "icms", - 4488: "awacs-ice", - 4500: "ipsec-nat-t", - 4534: "armagetronad", - 4535: "ehs", - 4536: "ehs-ssl", - 4537: "wssauthsvc", - 4538: "swx-gate", - 4545: "worldscores", - 4546: "sf-lm", - 4547: "lanner-lm", - 4548: "synchromesh", - 4549: "aegate", - 4550: "gds-adppiw-db", - 4551: "ieee-mih", - 4552: "menandmice-mon", - 4554: "msfrs", - 4555: "rsip", - 4556: "dtn-bundle", - 4557: "mtcevrunqss", - 4558: "mtcevrunqman", - 4559: "hylafax", - 4566: "kwtc", - 4567: "tram", - 4568: "bmc-reporting", - 4569: "iax", - 4591: "l3t-at-an", - 4592: "hrpd-ith-at-an", - 4593: "ipt-anri-anri", - 4594: "ias-session", - 4595: "ias-paging", - 4596: "ias-neighbor", - 4597: "a21-an-1xbs", - 4598: "a16-an-an", - 4599: "a17-an-an", - 4600: "piranha1", - 4601: "piranha2", - 4621: "ventoso", - 4658: "playsta2-app", - 4659: "playsta2-lob", - 4660: "smaclmgr", - 4661: "kar2ouche", - 4662: "oms", - 4663: "noteit", - 4664: "ems", - 4665: "contclientms", - 4666: "eportcomm", - 4667: "mmacomm", - 4668: "mmaeds", - 4669: "eportcommdata", - 4670: "light", - 4671: "acter", - 4672: "rfa", - 4673: "cxws", - 4674: "appiq-mgmt", - 4675: "dhct-status", - 4676: "dhct-alerts", - 4677: "bcs", - 4678: "traversal", - 4679: "mgesupervision", - 4680: "mgemanagement", - 4681: "parliant", - 4682: "finisar", - 4683: "spike", - 4684: "rfid-rp1", - 4685: "autopac", - 4686: "msp-os", - 4687: "nst", - 4688: "mobile-p2p", - 4689: "altovacentral", - 4690: "prelude", - 4691: "mtn", - 4692: "conspiracy", - 4700: "netxms-agent", - 4701: "netxms-mgmt", - 4702: "netxms-sync", - 4711: "trinity-dist", - 4725: "truckstar", - 4726: "a26-fap-fgw", - 4727: "fcis-disc", - 4728: "capmux", - 4729: "gsmtap", - 4730: "gearman", - 4732: "ohmtrigger", - 4737: "ipdr-sp", - 4738: "solera-lpn", - 4739: "ipfix", - 4740: "ipfixs", - 4741: "lumimgrd", - 4742: "sicct-sdp", - 4743: "openhpid", - 4744: "ifsp", - 4745: "fmp", - 4746: "intelliadm-disc", - 4747: "buschtrommel", - 4749: "profilemac", - 4750: "ssad", - 4751: "spocp", - 4752: "snap", - 4753: "simon-disc", - 4754: "gre-in-udp", - 4755: "gre-udp-dtls", - 4784: "bfd-multi-ctl", - 4785: "cncp", - 4789: "vxlan", - 4790: "vxlan-gpe", - 4791: "roce", - 4800: "iims", - 4801: "iwec", - 4802: "ilss", - 4803: "notateit-disc", - 4804: "aja-ntv4-disc", - 4827: "htcp", - 4837: "varadero-0", - 4838: "varadero-1", - 4839: "varadero-2", - 4840: "opcua-udp", - 4841: "quosa", - 4842: "gw-asv", - 4843: "opcua-tls", - 4844: "gw-log", - 4845: "wcr-remlib", - 4846: "contamac-icm", - 4847: "wfc", - 4848: "appserv-http", - 4849: "appserv-https", - 4850: "sun-as-nodeagt", - 4851: "derby-repli", - 4867: "unify-debug", - 4868: "phrelay", - 4869: "phrelaydbg", - 4870: "cc-tracking", - 4871: "wired", - 4876: "tritium-can", - 4877: "lmcs", - 4878: "inst-discovery", - 4881: "socp-t", - 4882: "socp-c", - 4884: "hivestor", - 4885: "abbs", - 4894: "lyskom", - 4899: "radmin-port", - 4900: "hfcs", - 4914: "bones", - 4936: "an-signaling", - 4937: "atsc-mh-ssc", - 4940: "eq-office-4940", - 4941: "eq-office-4941", - 4942: "eq-office-4942", - 4949: "munin", - 4950: "sybasesrvmon", - 4951: "pwgwims", - 4952: "sagxtsds", - 4969: "ccss-qmm", - 4970: "ccss-qsm", - 4980: "ctxs-vpp", - 4986: "mrip", - 4987: "smar-se-port1", - 4988: "smar-se-port2", - 4989: "parallel", - 4990: "busycal", - 4991: "vrt", - 4999: "hfcs-manager", - 5000: "commplex-main", - 5001: "commplex-link", - 5002: "rfe", - 5003: "fmpro-internal", - 5004: "avt-profile-1", - 5005: "avt-profile-2", - 5006: "wsm-server", - 5007: "wsm-server-ssl", - 5008: "synapsis-edge", - 5009: "winfs", - 5010: "telelpathstart", - 5011: "telelpathattack", - 5012: "nsp", - 5013: "fmpro-v6", - 5014: "onpsocket", - 5020: "zenginkyo-1", - 5021: "zenginkyo-2", - 5022: "mice", - 5023: "htuilsrv", - 5024: "scpi-telnet", - 5025: "scpi-raw", - 5026: "strexec-d", - 5027: "strexec-s", - 5029: "infobright", - 5030: "surfpass", - 5031: "dmp", - 5042: "asnaacceler8db", - 5043: "swxadmin", - 5044: "lxi-evntsvc", - 5046: "vpm-udp", - 5047: "iscape", - 5049: "ivocalize", - 5050: "mmcc", - 5051: "ita-agent", - 5052: "ita-manager", - 5053: "rlm-disc", - 5055: "unot", - 5056: "intecom-ps1", - 5057: "intecom-ps2", - 5058: "locus-disc", - 5059: "sds", - 5060: "sip", - 5061: "sips", - 5062: "na-localise", - 5064: "ca-1", - 5065: "ca-2", - 5066: "stanag-5066", - 5067: "authentx", - 5069: "i-net-2000-npr", - 5070: "vtsas", - 5071: "powerschool", - 5072: "ayiya", - 5073: "tag-pm", - 5074: "alesquery", - 5078: "pixelpusher", - 5079: "cp-spxrpts", - 5080: "onscreen", - 5081: "sdl-ets", - 5082: "qcp", - 5083: "qfp", - 5084: "llrp", - 5085: "encrypted-llrp", - 5092: "magpie", - 5093: "sentinel-lm", - 5094: "hart-ip", - 5099: "sentlm-srv2srv", - 5100: "socalia", - 5101: "talarian-udp", - 5102: "oms-nonsecure", - 5104: "tinymessage", - 5105: "hughes-ap", - 5111: "taep-as-svc", - 5112: "pm-cmdsvr", - 5116: "emb-proj-cmd", - 5120: "barracuda-bbs", - 5133: "nbt-pc", - 5136: "minotaur-sa", - 5137: "ctsd", - 5145: "rmonitor-secure", - 5150: "atmp", - 5151: "esri-sde", - 5152: "sde-discovery", - 5154: "bzflag", - 5155: "asctrl-agent", - 5164: "vpa-disc", - 5165: "ife-icorp", - 5166: "winpcs", - 5167: "scte104", - 5168: "scte30", - 5190: "aol", - 5191: "aol-1", - 5192: "aol-2", - 5193: "aol-3", - 5200: "targus-getdata", - 5201: "targus-getdata1", - 5202: "targus-getdata2", - 5203: "targus-getdata3", - 5223: "hpvirtgrp", - 5224: "hpvirtctrl", - 5225: "hp-server", - 5226: "hp-status", - 5227: "perfd", - 5234: "eenet", - 5235: "galaxy-network", - 5236: "padl2sim", - 5237: "mnet-discovery", - 5245: "downtools-disc", - 5246: "capwap-control", - 5247: "capwap-data", - 5248: "caacws", - 5249: "caaclang2", - 5250: "soagateway", - 5251: "caevms", - 5252: "movaz-ssc", - 5264: "3com-njack-1", - 5265: "3com-njack-2", - 5270: "cartographerxmp", - 5271: "cuelink-disc", - 5272: "pk", - 5282: "transmit-port", - 5298: "presence", - 5299: "nlg-data", - 5300: "hacl-hb", - 5301: "hacl-gs", - 5302: "hacl-cfg", - 5303: "hacl-probe", - 5304: "hacl-local", - 5305: "hacl-test", - 5306: "sun-mc-grp", - 5307: "sco-aip", - 5308: "cfengine", - 5309: "jprinter", - 5310: "outlaws", - 5312: "permabit-cs", - 5313: "rrdp", - 5314: "opalis-rbt-ipc", - 5315: "hacl-poll", - 5343: "kfserver", - 5344: "xkotodrcp", - 5349: "stuns", - 5350: "pcp-multicast", - 5351: "pcp", - 5352: "dns-llq", - 5353: "mdns", - 5354: "mdnsresponder", - 5355: "llmnr", - 5356: "ms-smlbiz", - 5357: "wsdapi", - 5358: "wsdapi-s", - 5359: "ms-alerter", - 5360: "ms-sideshow", - 5361: "ms-s-sideshow", - 5362: "serverwsd2", - 5363: "net-projection", - 5364: "kdnet", - 5397: "stresstester", - 5398: "elektron-admin", - 5399: "securitychase", - 5400: "excerpt", - 5401: "excerpts", - 5402: "mftp", - 5403: "hpoms-ci-lstn", - 5404: "hpoms-dps-lstn", - 5405: "netsupport", - 5406: "systemics-sox", - 5407: "foresyte-clear", - 5408: "foresyte-sec", - 5409: "salient-dtasrv", - 5410: "salient-usrmgr", - 5411: "actnet", - 5412: "continuus", - 5413: "wwiotalk", - 5414: "statusd", - 5415: "ns-server", - 5416: "sns-gateway", - 5417: "sns-agent", - 5418: "mcntp", - 5419: "dj-ice", - 5420: "cylink-c", - 5421: "netsupport2", - 5422: "salient-mux", - 5423: "virtualuser", - 5424: "beyond-remote", - 5425: "br-channel", - 5426: "devbasic", - 5427: "sco-peer-tta", - 5428: "telaconsole", - 5429: "base", - 5430: "radec-corp", - 5431: "park-agent", - 5432: "postgresql", - 5433: "pyrrho", - 5434: "sgi-arrayd", - 5435: "sceanics", - 5436: "pmip6-cntl", - 5437: "pmip6-data", - 5443: "spss", - 5450: "tiepie-disc", - 5453: "surebox", - 5454: "apc-5454", - 5455: "apc-5455", - 5456: "apc-5456", - 5461: "silkmeter", - 5462: "ttl-publisher", - 5463: "ttlpriceproxy", - 5464: "quailnet", - 5465: "netops-broker", - 5474: "apsolab-rpc", - 5500: "fcp-addr-srvr1", - 5501: "fcp-addr-srvr2", - 5502: "fcp-srvr-inst1", - 5503: "fcp-srvr-inst2", - 5504: "fcp-cics-gw1", - 5505: "checkoutdb", - 5506: "amc", - 5553: "sgi-eventmond", - 5554: "sgi-esphttp", - 5555: "personal-agent", - 5556: "freeciv", - 5567: "dof-dps-mc-sec", - 5568: "sdt", - 5569: "rdmnet-device", - 5573: "sdmmp", - 5580: "tmosms0", - 5581: "tmosms1", - 5582: "fac-restore", - 5583: "tmo-icon-sync", - 5584: "bis-web", - 5585: "bis-sync", - 5597: "ininmessaging", - 5598: "mctfeed", - 5599: "esinstall", - 5600: "esmmanager", - 5601: "esmagent", - 5602: "a1-msc", - 5603: "a1-bs", - 5604: "a3-sdunode", - 5605: "a4-sdunode", - 5627: "ninaf", - 5628: "htrust", - 5629: "symantec-sfdb", - 5630: "precise-comm", - 5631: "pcanywheredata", - 5632: "pcanywherestat", - 5633: "beorl", - 5634: "xprtld", - 5670: "zre-disc", - 5671: "amqps", - 5672: "amqp", - 5673: "jms", - 5674: "hyperscsi-port", - 5675: "v5ua", - 5676: "raadmin", - 5677: "questdb2-lnchr", - 5678: "rrac", - 5679: "dccm", - 5680: "auriga-router", - 5681: "ncxcp", - 5682: "brightcore", - 5683: "coap", - 5684: "coaps", - 5687: "gog-multiplayer", - 5688: "ggz", - 5689: "qmvideo", - 5713: "proshareaudio", - 5714: "prosharevideo", - 5715: "prosharedata", - 5716: "prosharerequest", - 5717: "prosharenotify", - 5718: "dpm", - 5719: "dpm-agent", - 5720: "ms-licensing", - 5721: "dtpt", - 5722: "msdfsr", - 5723: "omhs", - 5724: "omsdk", - 5728: "io-dist-group", - 5729: "openmail", - 5730: "unieng", - 5741: "ida-discover1", - 5742: "ida-discover2", - 5743: "watchdoc-pod", - 5744: "watchdoc", - 5745: "fcopy-server", - 5746: "fcopys-server", - 5747: "tunatic", - 5748: "tunalyzer", - 5750: "rscd", - 5755: "openmailg", - 5757: "x500ms", - 5766: "openmailns", - 5767: "s-openmail", - 5768: "openmailpxy", - 5769: "spramsca", - 5770: "spramsd", - 5771: "netagent", - 5777: "dali-port", - 5781: "3par-evts", - 5782: "3par-mgmt", - 5783: "3par-mgmt-ssl", - 5784: "ibar", - 5785: "3par-rcopy", - 5786: "cisco-redu", - 5787: "waascluster", - 5793: "xtreamx", - 5794: "spdp", - 5813: "icmpd", - 5814: "spt-automation", - 5859: "wherehoo", - 5863: "ppsuitemsg", - 5900: "rfb", - 5910: "cm", - 5911: "cpdlc", - 5912: "fis", - 5913: "ads-c", - 5963: "indy", - 5968: "mppolicy-v5", - 5969: "mppolicy-mgr", - 5984: "couchdb", - 5985: "wsman", - 5986: "wsmans", - 5987: "wbem-rmi", - 5988: "wbem-http", - 5989: "wbem-https", - 5990: "wbem-exp-https", - 5991: "nuxsl", - 5992: "consul-insight", - 5999: "cvsup", - 6064: "ndl-ahp-svc", - 6065: "winpharaoh", - 6066: "ewctsp", - 6069: "trip", - 6070: "messageasap", - 6071: "ssdtp", - 6072: "diagnose-proc", - 6073: "directplay8", - 6074: "max", - 6080: "gue", - 6081: "geneve", - 6082: "p25cai", - 6083: "miami-bcast", - 6085: "konspire2b", - 6086: "pdtp", - 6087: "ldss", - 6088: "doglms-notify", - 6100: "synchronet-db", - 6101: "synchronet-rtc", - 6102: "synchronet-upd", - 6103: "rets", - 6104: "dbdb", - 6105: "primaserver", - 6106: "mpsserver", - 6107: "etc-control", - 6108: "sercomm-scadmin", - 6109: "globecast-id", - 6110: "softcm", - 6111: "spc", - 6112: "dtspcd", - 6118: "tipc", - 6122: "bex-webadmin", - 6123: "backup-express", - 6124: "pnbs", - 6133: "nbt-wol", - 6140: "pulsonixnls", - 6141: "meta-corp", - 6142: "aspentec-lm", - 6143: "watershed-lm", - 6144: "statsci1-lm", - 6145: "statsci2-lm", - 6146: "lonewolf-lm", - 6147: "montage-lm", - 6148: "ricardo-lm", - 6149: "tal-pod", - 6160: "ecmp-data", - 6161: "patrol-ism", - 6162: "patrol-coll", - 6163: "pscribe", - 6200: "lm-x", - 6201: "thermo-calc", - 6209: "qmtps", - 6222: "radmind", - 6241: "jeol-nsddp-1", - 6242: "jeol-nsddp-2", - 6243: "jeol-nsddp-3", - 6244: "jeol-nsddp-4", - 6251: "tl1-raw-ssl", - 6252: "tl1-ssh", - 6253: "crip", - 6268: "grid", - 6269: "grid-alt", - 6300: "bmc-grx", - 6301: "bmc-ctd-ldap", - 6306: "ufmp", - 6315: "scup-disc", - 6316: "abb-escp", - 6317: "nav-data", - 6320: "repsvc", - 6321: "emp-server1", - 6322: "emp-server2", - 6324: "hrd-ns-disc", - 6343: "sflow", - 6346: "gnutella-svc", - 6347: "gnutella-rtr", - 6350: "adap", - 6355: "pmcs", - 6360: "metaedit-mu", - 6363: "ndn", - 6370: "metaedit-se", - 6382: "metatude-mds", - 6389: "clariion-evr01", - 6390: "metaedit-ws", - 6417: "faxcomservice", - 6419: "svdrp-disc", - 6420: "nim-vdrshell", - 6421: "nim-wan", - 6443: "sun-sr-https", - 6444: "sge-qmaster", - 6445: "sge-execd", - 6446: "mysql-proxy", - 6455: "skip-cert-recv", - 6456: "skip-cert-send", - 6464: "ieee11073-20701", - 6471: "lvision-lm", - 6480: "sun-sr-http", - 6481: "servicetags", - 6482: "ldoms-mgmt", - 6483: "SunVTS-RMI", - 6484: "sun-sr-jms", - 6485: "sun-sr-iiop", - 6486: "sun-sr-iiops", - 6487: "sun-sr-iiop-aut", - 6488: "sun-sr-jmx", - 6489: "sun-sr-admin", - 6500: "boks", - 6501: "boks-servc", - 6502: "boks-servm", - 6503: "boks-clntd", - 6505: "badm-priv", - 6506: "badm-pub", - 6507: "bdir-priv", - 6508: "bdir-pub", - 6509: "mgcs-mfp-port", - 6510: "mcer-port", - 6511: "dccp-udp", - 6514: "syslog-tls", - 6515: "elipse-rec", - 6543: "lds-distrib", - 6544: "lds-dump", - 6547: "apc-6547", - 6548: "apc-6548", - 6549: "apc-6549", - 6550: "fg-sysupdate", - 6551: "sum", - 6558: "xdsxdm", - 6566: "sane-port", - 6568: "rp-reputation", - 6579: "affiliate", - 6580: "parsec-master", - 6581: "parsec-peer", - 6582: "parsec-game", - 6583: "joaJewelSuite", - 6619: "odette-ftps", - 6620: "kftp-data", - 6621: "kftp", - 6622: "mcftp", - 6623: "ktelnet", - 6626: "wago-service", - 6627: "nexgen", - 6628: "afesc-mc", - 6629: "nexgen-aux", - 6633: "cisco-vpath-tun", - 6634: "mpls-pm", - 6635: "mpls-udp", - 6636: "mpls-udp-dtls", - 6653: "openflow", - 6657: "palcom-disc", - 6670: "vocaltec-gold", - 6671: "p4p-portal", - 6672: "vision-server", - 6673: "vision-elmd", - 6678: "vfbp-disc", - 6679: "osaut", - 6689: "tsa", - 6696: "babel", - 6701: "kti-icad-srvr", - 6702: "e-design-net", - 6703: "e-design-web", - 6714: "ibprotocol", - 6715: "fibotrader-com", - 6767: "bmc-perf-agent", - 6768: "bmc-perf-mgrd", - 6769: "adi-gxp-srvprt", - 6770: "plysrv-http", - 6771: "plysrv-https", - 6784: "bfd-lag", - 6785: "dgpf-exchg", - 6786: "smc-jmx", - 6787: "smc-admin", - 6788: "smc-http", - 6790: "hnmp", - 6791: "hnm", - 6801: "acnet", - 6831: "ambit-lm", - 6841: "netmo-default", - 6842: "netmo-http", - 6850: "iccrushmore", - 6868: "acctopus-st", - 6888: "muse", - 6935: "ethoscan", - 6936: "xsmsvc", - 6946: "bioserver", - 6951: "otlp", - 6961: "jmact3", - 6962: "jmevt2", - 6963: "swismgr1", - 6964: "swismgr2", - 6965: "swistrap", - 6966: "swispol", - 6969: "acmsoda", - 6997: "MobilitySrv", - 6998: "iatp-highpri", - 6999: "iatp-normalpri", - 7000: "afs3-fileserver", - 7001: "afs3-callback", - 7002: "afs3-prserver", - 7003: "afs3-vlserver", - 7004: "afs3-kaserver", - 7005: "afs3-volser", - 7006: "afs3-errors", - 7007: "afs3-bos", - 7008: "afs3-update", - 7009: "afs3-rmtsys", - 7010: "ups-onlinet", - 7011: "talon-disc", - 7012: "talon-engine", - 7013: "microtalon-dis", - 7014: "microtalon-com", - 7015: "talon-webserver", - 7016: "spg", - 7017: "grasp", - 7019: "doceri-view", - 7020: "dpserve", - 7021: "dpserveadmin", - 7022: "ctdp", - 7023: "ct2nmcs", - 7024: "vmsvc", - 7025: "vmsvc-2", - 7030: "op-probe", - 7040: "quest-disc", - 7070: "arcp", - 7071: "iwg1", - 7080: "empowerid", - 7088: "zixi-transport", - 7095: "jdp-disc", - 7099: "lazy-ptop", - 7100: "font-service", - 7101: "elcn", - 7107: "aes-x170", - 7121: "virprot-lm", - 7128: "scenidm", - 7129: "scenccs", - 7161: "cabsm-comm", - 7162: "caistoragemgr", - 7163: "cacsambroker", - 7164: "fsr", - 7165: "doc-server", - 7166: "aruba-server", - 7169: "ccag-pib", - 7170: "nsrp", - 7171: "drm-production", - 7174: "clutild", - 7181: "janus-disc", - 7200: "fodms", - 7201: "dlip", - 7227: "ramp", - 7235: "aspcoordination", - 7244: "frc-hicp-disc", - 7262: "cnap", - 7272: "watchme-7272", - 7273: "oma-rlp", - 7274: "oma-rlp-s", - 7275: "oma-ulp", - 7276: "oma-ilp", - 7277: "oma-ilp-s", - 7278: "oma-dcdocbs", - 7279: "ctxlic", - 7280: "itactionserver1", - 7281: "itactionserver2", - 7282: "mzca-alert", - 7365: "lcm-server", - 7391: "mindfilesys", - 7392: "mrssrendezvous", - 7393: "nfoldman", - 7394: "fse", - 7395: "winqedit", - 7397: "hexarc", - 7400: "rtps-discovery", - 7401: "rtps-dd-ut", - 7402: "rtps-dd-mt", - 7410: "ionixnetmon", - 7411: "daqstream", - 7421: "mtportmon", - 7426: "pmdmgr", - 7427: "oveadmgr", - 7428: "ovladmgr", - 7429: "opi-sock", - 7430: "xmpv7", - 7431: "pmd", - 7437: "faximum", - 7443: "oracleas-https", - 7473: "rise", - 7491: "telops-lmd", - 7500: "silhouette", - 7501: "ovbus", - 7510: "ovhpas", - 7511: "pafec-lm", - 7542: "saratoga", - 7543: "atul", - 7544: "nta-ds", - 7545: "nta-us", - 7546: "cfs", - 7547: "cwmp", - 7548: "tidp", - 7549: "nls-tl", - 7550: "cloudsignaling", - 7560: "sncp", - 7566: "vsi-omega", - 7570: "aries-kfinder", - 7574: "coherence-disc", - 7588: "sun-lm", - 7606: "mipi-debug", - 7624: "indi", - 7627: "soap-http", - 7628: "zen-pawn", - 7629: "xdas", - 7633: "pmdfmgt", - 7648: "cuseeme", - 7674: "imqtunnels", - 7675: "imqtunnel", - 7676: "imqbrokerd", - 7677: "sun-user-https", - 7680: "pando-pub", - 7689: "collaber", - 7697: "klio", - 7707: "sync-em7", - 7708: "scinet", - 7720: "medimageportal", - 7724: "nsdeepfreezectl", - 7725: "nitrogen", - 7726: "freezexservice", - 7727: "trident-data", - 7728: "osvr", - 7734: "smip", - 7738: "aiagent", - 7741: "scriptview", - 7743: "sstp-1", - 7744: "raqmon-pdu", - 7747: "prgp", - 7777: "cbt", - 7778: "interwise", - 7779: "vstat", - 7781: "accu-lmgr", - 7784: "s-bfd", - 7786: "minivend", - 7787: "popup-reminders", - 7789: "office-tools", - 7794: "q3ade", - 7797: "pnet-conn", - 7798: "pnet-enc", - 7799: "altbsdp", - 7800: "asr", - 7801: "ssp-client", - 7802: "vns-tp", - 7810: "rbt-wanopt", - 7845: "apc-7845", - 7846: "apc-7846", - 7872: "mipv6tls", - 7880: "pss", - 7887: "ubroker", - 7900: "mevent", - 7901: "tnos-sp", - 7902: "tnos-dp", - 7903: "tnos-dps", - 7913: "qo-secure", - 7932: "t2-drm", - 7933: "t2-brm", - 7962: "generalsync", - 7967: "supercell", - 7979: "micromuse-ncps", - 7980: "quest-vista", - 7982: "sossd-disc", - 7998: "usicontentpush", - 7999: "irdmi2", - 8000: "irdmi", - 8001: "vcom-tunnel", - 8002: "teradataordbms", - 8003: "mcreport", - 8005: "mxi", - 8006: "wpl-disc", - 8007: "warppipe", - 8008: "http-alt", - 8019: "qbdb", - 8020: "intu-ec-svcdisc", - 8021: "intu-ec-client", - 8022: "oa-system", - 8025: "ca-audit-da", - 8026: "ca-audit-ds", - 8032: "pro-ed", - 8033: "mindprint", - 8034: "vantronix-mgmt", - 8040: "ampify", - 8041: "enguity-xccetp", - 8052: "senomix01", - 8053: "senomix02", - 8054: "senomix03", - 8055: "senomix04", - 8056: "senomix05", - 8057: "senomix06", - 8058: "senomix07", - 8059: "senomix08", - 8060: "aero", - 8074: "gadugadu", - 8080: "http-alt", - 8081: "sunproxyadmin", - 8082: "us-cli", - 8083: "us-srv", - 8086: "d-s-n", - 8087: "simplifymedia", - 8088: "radan-http", - 8097: "sac", - 8100: "xprint-server", - 8115: "mtl8000-matrix", - 8116: "cp-cluster", - 8118: "privoxy", - 8121: "apollo-data", - 8122: "apollo-admin", - 8128: "paycash-online", - 8129: "paycash-wbp", - 8130: "indigo-vrmi", - 8131: "indigo-vbcp", - 8132: "dbabble", - 8148: "isdd", - 8149: "eor-game", - 8160: "patrol", - 8161: "patrol-snmp", - 8182: "vmware-fdm", - 8184: "itach", - 8192: "spytechphone", - 8194: "blp1", - 8195: "blp2", - 8199: "vvr-data", - 8200: "trivnet1", - 8201: "trivnet2", - 8202: "aesop", - 8204: "lm-perfworks", - 8205: "lm-instmgr", - 8206: "lm-dta", - 8207: "lm-sserver", - 8208: "lm-webwatcher", - 8230: "rexecj", - 8231: "hncp-udp-port", - 8232: "hncp-dtls-port", - 8243: "synapse-nhttps", - 8276: "pando-sec", - 8280: "synapse-nhttp", - 8282: "libelle-disc", - 8292: "blp3", - 8294: "blp4", - 8300: "tmi", - 8301: "amberon", - 8320: "tnp-discover", - 8321: "tnp", - 8322: "garmin-marine", - 8351: "server-find", - 8376: "cruise-enum", - 8377: "cruise-swroute", - 8378: "cruise-config", - 8379: "cruise-diags", - 8380: "cruise-update", - 8383: "m2mservices", - 8384: "marathontp", - 8400: "cvd", - 8401: "sabarsd", - 8402: "abarsd", - 8403: "admind", - 8416: "espeech", - 8417: "espeech-rtp", - 8442: "cybro-a-bus", - 8443: "pcsync-https", - 8444: "pcsync-http", - 8445: "copy-disc", - 8450: "npmp", - 8472: "otv", - 8473: "vp2p", - 8474: "noteshare", - 8500: "fmtp", - 8501: "cmtp-av", - 8503: "lsp-self-ping", - 8554: "rtsp-alt", - 8555: "d-fence", - 8567: "dof-tunnel", - 8600: "asterix", - 8609: "canon-cpp-disc", - 8610: "canon-mfnp", - 8611: "canon-bjnp1", - 8612: "canon-bjnp2", - 8613: "canon-bjnp3", - 8614: "canon-bjnp4", - 8675: "msi-cps-rm-disc", - 8686: "sun-as-jmxrmi", - 8732: "dtp-net", - 8733: "ibus", - 8763: "mc-appserver", - 8764: "openqueue", - 8765: "ultraseek-http", - 8766: "amcs", - 8770: "dpap", - 8786: "msgclnt", - 8787: "msgsrvr", - 8793: "acd-pm", - 8800: "sunwebadmin", - 8804: "truecm", - 8805: "pfcp", - 8808: "ssports-bcast", - 8873: "dxspider", - 8880: "cddbp-alt", - 8883: "secure-mqtt", - 8888: "ddi-udp-1", - 8889: "ddi-udp-2", - 8890: "ddi-udp-3", - 8891: "ddi-udp-4", - 8892: "ddi-udp-5", - 8893: "ddi-udp-6", - 8894: "ddi-udp-7", - 8899: "ospf-lite", - 8900: "jmb-cds1", - 8901: "jmb-cds2", - 8910: "manyone-http", - 8911: "manyone-xml", - 8912: "wcbackup", - 8913: "dragonfly", - 8954: "cumulus-admin", - 8980: "nod-provider", - 8981: "nod-client", - 8989: "sunwebadmins", - 8990: "http-wmap", - 8991: "https-wmap", - 8999: "bctp", - 9000: "cslistener", - 9001: "etlservicemgr", - 9002: "dynamid", - 9007: "ogs-client", - 9009: "pichat", - 9020: "tambora", - 9021: "panagolin-ident", - 9022: "paragent", - 9023: "swa-1", - 9024: "swa-2", - 9025: "swa-3", - 9026: "swa-4", - 9060: "CardWeb-RT", - 9080: "glrpc", - 9084: "aurora", - 9085: "ibm-rsyscon", - 9086: "net2display", - 9087: "classic", - 9088: "sqlexec", - 9089: "sqlexec-ssl", - 9090: "websm", - 9091: "xmltec-xmlmail", - 9092: "XmlIpcRegSvc", - 9100: "hp-pdl-datastr", - 9101: "bacula-dir", - 9102: "bacula-fd", - 9103: "bacula-sd", - 9104: "peerwire", - 9105: "xadmin", - 9106: "astergate-disc", - 9119: "mxit", - 9131: "dddp", - 9160: "apani1", - 9161: "apani2", - 9162: "apani3", - 9163: "apani4", - 9164: "apani5", - 9191: "sun-as-jpda", - 9200: "wap-wsp", - 9201: "wap-wsp-wtp", - 9202: "wap-wsp-s", - 9203: "wap-wsp-wtp-s", - 9204: "wap-vcard", - 9205: "wap-vcal", - 9206: "wap-vcard-s", - 9207: "wap-vcal-s", - 9208: "rjcdb-vcards", - 9209: "almobile-system", - 9210: "oma-mlp", - 9211: "oma-mlp-s", - 9212: "serverviewdbms", - 9213: "serverstart", - 9214: "ipdcesgbs", - 9215: "insis", - 9216: "acme", - 9217: "fsc-port", - 9222: "teamcoherence", - 9255: "mon", - 9277: "traingpsdata", - 9278: "pegasus", - 9279: "pegasus-ctl", - 9280: "pgps", - 9281: "swtp-port1", - 9282: "swtp-port2", - 9283: "callwaveiam", - 9284: "visd", - 9285: "n2h2server", - 9286: "n2receive", - 9287: "cumulus", - 9292: "armtechdaemon", - 9293: "storview", - 9294: "armcenterhttp", - 9295: "armcenterhttps", - 9300: "vrace", - 9318: "secure-ts", - 9321: "guibase", - 9343: "mpidcmgr", - 9344: "mphlpdmc", - 9346: "ctechlicensing", - 9374: "fjdmimgr", - 9380: "boxp", - 9396: "fjinvmgr", - 9397: "mpidcagt", - 9400: "sec-t4net-srv", - 9401: "sec-t4net-clt", - 9402: "sec-pc2fax-srv", - 9418: "git", - 9443: "tungsten-https", - 9444: "wso2esb-console", - 9450: "sntlkeyssrvr", - 9500: "ismserver", - 9522: "sma-spw", - 9535: "mngsuite", - 9536: "laes-bf", - 9555: "trispen-sra", - 9592: "ldgateway", - 9593: "cba8", - 9594: "msgsys", - 9595: "pds", - 9596: "mercury-disc", - 9597: "pd-admin", - 9598: "vscp", - 9599: "robix", - 9600: "micromuse-ncpw", - 9612: "streamcomm-ds", - 9618: "condor", - 9628: "odbcpathway", - 9629: "uniport", - 9632: "mc-comm", - 9667: "xmms2", - 9668: "tec5-sdctp", - 9694: "client-wakeup", - 9695: "ccnx", - 9700: "board-roar", - 9747: "l5nas-parchan", - 9750: "board-voip", - 9753: "rasadv", - 9762: "tungsten-http", - 9800: "davsrc", - 9801: "sstp-2", - 9802: "davsrcs", - 9875: "sapv1", - 9878: "kca-service", - 9888: "cyborg-systems", - 9889: "gt-proxy", - 9898: "monkeycom", - 9899: "sctp-tunneling", - 9900: "iua", - 9901: "enrp", - 9903: "multicast-ping", - 9909: "domaintime", - 9911: "sype-transport", - 9950: "apc-9950", - 9951: "apc-9951", - 9952: "apc-9952", - 9953: "acis", - 9955: "alljoyn-mcm", - 9956: "alljoyn", - 9966: "odnsp", - 9987: "dsm-scm-target", - 9990: "osm-appsrvr", - 9991: "osm-oev", - 9992: "palace-1", - 9993: "palace-2", - 9994: "palace-3", - 9995: "palace-4", - 9996: "palace-5", - 9997: "palace-6", - 9998: "distinct32", - 9999: "distinct", - 10000: "ndmp", - 10001: "scp-config", - 10002: "documentum", - 10003: "documentum-s", - 10007: "mvs-capacity", - 10008: "octopus", - 10009: "swdtp-sv", - 10050: "zabbix-agent", - 10051: "zabbix-trapper", - 10080: "amanda", - 10081: "famdc", - 10100: "itap-ddtp", - 10101: "ezmeeting-2", - 10102: "ezproxy-2", - 10103: "ezrelay", - 10104: "swdtp", - 10107: "bctp-server", - 10110: "nmea-0183", - 10111: "nmea-onenet", - 10113: "netiq-endpoint", - 10114: "netiq-qcheck", - 10115: "netiq-endpt", - 10116: "netiq-voipa", - 10117: "iqrm", - 10128: "bmc-perf-sd", - 10160: "qb-db-server", - 10161: "snmpdtls", - 10162: "snmpdtls-trap", - 10200: "trisoap", - 10201: "rscs", - 10252: "apollo-relay", - 10253: "eapol-relay", - 10260: "axis-wimp-port", - 10288: "blocks", - 10439: "bngsync", - 10500: "hip-nat-t", - 10540: "MOS-lower", - 10541: "MOS-upper", - 10542: "MOS-aux", - 10543: "MOS-soap", - 10544: "MOS-soap-opt", - 10800: "gap", - 10805: "lpdg", - 10810: "nmc-disc", - 10860: "helix", - 10880: "bveapi", - 10990: "rmiaux", - 11000: "irisa", - 11001: "metasys", - 10023: "cefd-vmp", - 11095: "weave", - 11106: "sgi-lk", - 11108: "myq-termlink", - 11111: "vce", - 11112: "dicom", - 11161: "suncacao-snmp", - 11162: "suncacao-jmxmp", - 11163: "suncacao-rmi", - 11164: "suncacao-csa", - 11165: "suncacao-websvc", - 11171: "snss", - 11201: "smsqp", - 11208: "wifree", - 11211: "memcache", - 11319: "imip", - 11320: "imip-channels", - 11321: "arena-server", - 11367: "atm-uhas", - 11371: "hkp", - 11430: "lsdp", - 11600: "tempest-port", - 11720: "h323callsigalt", - 11723: "emc-xsw-dcache", - 11751: "intrepid-ssl", - 11796: "lanschool-mpt", - 11876: "xoraya", - 11877: "x2e-disc", - 11967: "sysinfo-sp", - 12000: "entextxid", - 12001: "entextnetwk", - 12002: "entexthigh", - 12003: "entextmed", - 12004: "entextlow", - 12005: "dbisamserver1", - 12006: "dbisamserver2", - 12007: "accuracer", - 12008: "accuracer-dbms", - 12009: "ghvpn", - 12012: "vipera", - 12013: "vipera-ssl", - 12109: "rets-ssl", - 12121: "nupaper-ss", - 12168: "cawas", - 12172: "hivep", - 12300: "linogridengine", - 12321: "warehouse-sss", - 12322: "warehouse", - 12345: "italk", - 12753: "tsaf", - 13160: "i-zipqd", - 13216: "bcslogc", - 13217: "rs-pias", - 13218: "emc-vcas-udp", - 13223: "powwow-client", - 13224: "powwow-server", - 13400: "doip-disc", - 13720: "bprd", - 13721: "bpdbm", - 13722: "bpjava-msvc", - 13724: "vnetd", - 13782: "bpcd", - 13783: "vopied", - 13785: "nbdb", - 13786: "nomdb", - 13818: "dsmcc-config", - 13819: "dsmcc-session", - 13820: "dsmcc-passthru", - 13821: "dsmcc-download", - 13822: "dsmcc-ccp", - 13894: "ucontrol", - 13929: "dta-systems", - 14000: "scotty-ft", - 14001: "sua", - 14002: "scotty-disc", - 14033: "sage-best-com1", - 14034: "sage-best-com2", - 14141: "vcs-app", - 14142: "icpp", - 14145: "gcm-app", - 14149: "vrts-tdd", - 14154: "vad", - 14250: "cps", - 14414: "ca-web-update", - 14936: "hde-lcesrvr-1", - 14937: "hde-lcesrvr-2", - 15000: "hydap", - 15118: "v2g-secc", - 15345: "xpilot", - 15363: "3link", - 15555: "cisco-snat", - 15660: "bex-xr", - 15740: "ptp", - 15998: "2ping", - 16003: "alfin", - 16161: "sun-sea-port", - 16309: "etb4j", - 16310: "pduncs", - 16311: "pdefmns", - 16360: "netserialext1", - 16361: "netserialext2", - 16367: "netserialext3", - 16368: "netserialext4", - 16384: "connected", - 16666: "vtp", - 16900: "newbay-snc-mc", - 16950: "sgcip", - 16991: "intel-rci-mp", - 16992: "amt-soap-http", - 16993: "amt-soap-https", - 16994: "amt-redir-tcp", - 16995: "amt-redir-tls", - 17007: "isode-dua", - 17185: "soundsvirtual", - 17219: "chipper", - 17220: "avtp", - 17221: "avdecc", - 17222: "cpsp", - 17224: "trdp-pd", - 17225: "trdp-md", - 17234: "integrius-stp", - 17235: "ssh-mgmt", - 17500: "db-lsp-disc", - 17729: "ea", - 17754: "zep", - 17755: "zigbee-ip", - 17756: "zigbee-ips", - 18000: "biimenu", - 18181: "opsec-cvp", - 18182: "opsec-ufp", - 18183: "opsec-sam", - 18184: "opsec-lea", - 18185: "opsec-omi", - 18186: "ohsc", - 18187: "opsec-ela", - 18241: "checkpoint-rtm", - 18262: "gv-pf", - 18463: "ac-cluster", - 18634: "rds-ib", - 18635: "rds-ip", - 18668: "vdmmesh-disc", - 18769: "ique", - 18881: "infotos", - 18888: "apc-necmp", - 19000: "igrid", - 19007: "scintilla", - 19191: "opsec-uaa", - 19194: "ua-secureagent", - 19220: "cora-disc", - 19283: "keysrvr", - 19315: "keyshadow", - 19398: "mtrgtrans", - 19410: "hp-sco", - 19411: "hp-sca", - 19412: "hp-sessmon", - 19539: "fxuptp", - 19540: "sxuptp", - 19541: "jcp", - 19788: "mle", - 19999: "dnp-sec", - 20000: "dnp", - 20001: "microsan", - 20002: "commtact-http", - 20003: "commtact-https", - 20005: "openwebnet", - 20012: "ss-idi-disc", - 20014: "opendeploy", - 20034: "nburn-id", - 20046: "tmophl7mts", - 20048: "mountd", - 20049: "nfsrdma", - 20167: "tolfab", - 20202: "ipdtp-port", - 20222: "ipulse-ics", - 20480: "emwavemsg", - 20670: "track", - 20999: "athand-mmp", - 21000: "irtrans", - 21554: "dfserver", - 21590: "vofr-gateway", - 21800: "tvpm", - 21845: "webphone", - 21846: "netspeak-is", - 21847: "netspeak-cs", - 21848: "netspeak-acd", - 21849: "netspeak-cps", - 22000: "snapenetio", - 22001: "optocontrol", - 22002: "optohost002", - 22003: "optohost003", - 22004: "optohost004", - 22005: "optohost004", - 22273: "wnn6", - 22305: "cis", - 22335: "shrewd-stream", - 22343: "cis-secure", - 22347: "wibukey", - 22350: "codemeter", - 22555: "vocaltec-phone", - 22763: "talikaserver", - 22800: "aws-brf", - 22951: "brf-gw", - 23000: "inovaport1", - 23001: "inovaport2", - 23002: "inovaport3", - 23003: "inovaport4", - 23004: "inovaport5", - 23005: "inovaport6", - 23272: "s102", - 23294: "5afe-disc", - 23333: "elxmgmt", - 23400: "novar-dbase", - 23401: "novar-alarm", - 23402: "novar-global", - 24000: "med-ltp", - 24001: "med-fsp-rx", - 24002: "med-fsp-tx", - 24003: "med-supp", - 24004: "med-ovw", - 24005: "med-ci", - 24006: "med-net-svc", - 24242: "filesphere", - 24249: "vista-4gl", - 24321: "ild", - 24322: "hid", - 24386: "intel-rci", - 24465: "tonidods", - 24554: "binkp", - 24577: "bilobit-update", - 24676: "canditv", - 24677: "flashfiler", - 24678: "proactivate", - 24680: "tcc-http", - 24850: "assoc-disc", - 24922: "find", - 25000: "icl-twobase1", - 25001: "icl-twobase2", - 25002: "icl-twobase3", - 25003: "icl-twobase4", - 25004: "icl-twobase5", - 25005: "icl-twobase6", - 25006: "icl-twobase7", - 25007: "icl-twobase8", - 25008: "icl-twobase9", - 25009: "icl-twobase10", - 25793: "vocaltec-hos", - 25900: "tasp-net", - 25901: "niobserver", - 25902: "nilinkanalyst", - 25903: "niprobe", - 25954: "bf-game", - 25955: "bf-master", - 26000: "quake", - 26133: "scscp", - 26208: "wnn6-ds", - 26260: "ezproxy", - 26261: "ezmeeting", - 26262: "k3software-svr", - 26263: "k3software-cli", - 26486: "exoline-udp", - 26487: "exoconfig", - 26489: "exonet", - 27345: "imagepump", - 27442: "jesmsjc", - 27504: "kopek-httphead", - 27782: "ars-vista", - 27999: "tw-auth-key", - 28000: "nxlmd", - 28119: "a27-ran-ran", - 28200: "voxelstorm", - 28240: "siemensgsm", - 29167: "otmp", - 30001: "pago-services1", - 30002: "pago-services2", - 30003: "amicon-fpsu-ra", - 30004: "amicon-fpsu-s", - 30260: "kingdomsonline", - 30832: "samsung-disc", - 30999: "ovobs", - 31016: "ka-kdp", - 31029: "yawn", - 31416: "xqosd", - 31457: "tetrinet", - 31620: "lm-mon", - 31765: "gamesmith-port", - 31948: "iceedcp-tx", - 31949: "iceedcp-rx", - 32034: "iracinghelper", - 32249: "t1distproc60", - 32483: "apm-link", - 32635: "sec-ntb-clnt", - 32636: "DMExpress", - 32767: "filenet-powsrm", - 32768: "filenet-tms", - 32769: "filenet-rpc", - 32770: "filenet-nch", - 32771: "filenet-rmi", - 32772: "filenet-pa", - 32773: "filenet-cm", - 32774: "filenet-re", - 32775: "filenet-pch", - 32776: "filenet-peior", - 32777: "filenet-obrok", - 32801: "mlsn", - 32896: "idmgratm", - 33123: "aurora-balaena", - 33331: "diamondport", - 33334: "speedtrace-disc", - 33434: "traceroute", - 33656: "snip-slave", - 34249: "turbonote-2", - 34378: "p-net-local", - 34379: "p-net-remote", - 34567: "edi_service", - 34962: "profinet-rt", - 34963: "profinet-rtm", - 34964: "profinet-cm", - 34980: "ethercat", - 35001: "rt-viewer", - 35004: "rt-classmanager", - 35100: "axio-disc", - 35355: "altova-lm-disc", - 36001: "allpeers", - 36411: "wlcp", - 36865: "kastenxpipe", - 37475: "neckar", - 37654: "unisys-eportal", - 38002: "crescoctrl-disc", - 38201: "galaxy7-data", - 38202: "fairview", - 38203: "agpolicy", - 39681: "turbonote-1", - 40000: "safetynetp", - 40023: "k-patentssensor", - 40841: "cscp", - 40842: "csccredir", - 40843: "csccfirewall", - 40853: "ortec-disc", - 41111: "fs-qos", - 41230: "z-wave-s", - 41794: "crestron-cip", - 41795: "crestron-ctp", - 42508: "candp", - 42509: "candrp", - 42510: "caerpc", - 43000: "recvr-rc-disc", - 43188: "reachout", - 43189: "ndm-agent-port", - 43190: "ip-provision", - 43210: "shaperai-disc", - 43439: "eq3-config", - 43440: "ew-disc-cmd", - 43441: "ciscocsdb", - 44321: "pmcd", - 44322: "pmcdproxy", - 44544: "domiq", - 44553: "rbr-debug", - 44600: "asihpi", - 44818: "EtherNet-IP-2", - 44900: "m3da-disc", - 45000: "asmp-mon", - 45054: "invision-ag", - 45514: "cloudcheck-ping", - 45678: "eba", - 45825: "qdb2service", - 45966: "ssr-servermgr", - 46999: "mediabox", - 47000: "mbus", - 47100: "jvl-mactalk", - 47557: "dbbrowse", - 47624: "directplaysrvr", - 47806: "ap", - 47808: "bacnet", - 47809: "presonus-ucnet", - 48000: "nimcontroller", - 48001: "nimspooler", - 48002: "nimhub", - 48003: "nimgtw", - 48128: "isnetserv", - 48129: "blp5", - 48556: "com-bardac-dw", - 48619: "iqobject", - 48653: "robotraconteur", - 49001: "nusdp-disc", -} -var sctpPortNames = map[SCTPPort]string{ - 9: "discard", - 20: "ftp-data", - 21: "ftp", - 22: "ssh", - 80: "http", - 179: "bgp", - 443: "https", - 1021: "exp1", - 1022: "exp2", - 1167: "cisco-ipsla", - 1720: "h323hostcall", - 2049: "nfs", - 2225: "rcip-itu", - 2904: "m2ua", - 2905: "m3ua", - 2944: "megaco-h248", - 2945: "h248-binary", - 3097: "itu-bicc-stc", - 3565: "m2pa", - 3863: "asap-sctp", - 3864: "asap-sctp-tls", - 3868: "diameter", - 4333: "ahsp", - 4502: "a25-fap-fgw", - 4711: "trinity-dist", - 4739: "ipfix", - 4740: "ipfixs", - 5060: "sip", - 5061: "sips", - 5090: "car", - 5091: "cxtp", - 5215: "noteza", - 5445: "smbdirect", - 5672: "amqp", - 5675: "v5ua", - 5868: "diameters", - 5910: "cm", - 5911: "cpdlc", - 5912: "fis", - 5913: "ads-c", - 6704: "frc-hp", - 6705: "frc-mp", - 6706: "frc-lp", - 6970: "conductor-mpx", - 7626: "simco", - 7701: "nfapi", - 7728: "osvr", - 8471: "pim-port", - 9082: "lcs-ap", - 9084: "aurora", - 9900: "iua", - 9901: "enrp-sctp", - 9902: "enrp-sctp-tls", - 11997: "wmereceiving", - 11998: "wmedistribution", - 11999: "wmereporting", - 14001: "sua", - 20049: "nfsrdma", - 25471: "rna", - 29118: "sgsap", - 29168: "sbcap", - 29169: "iuhsctpassoc", - 30100: "rwp", - 36412: "s1-control", - 36422: "x2-control", - 36423: "slmap", - 36424: "nq-ap", - 36443: "m2ap", - 36444: "m3ap", - 36462: "xw-control", - 38412: "ng-control", - 38422: "xn-control", - 38472: "f1-control", -} diff --git a/vendor/github.com/google/gopacket/layers/icmp4.go b/vendor/github.com/google/gopacket/layers/icmp4.go deleted file mode 100644 index bd3f03f00c..0000000000 --- a/vendor/github.com/google/gopacket/layers/icmp4.go +++ /dev/null @@ -1,267 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// Copyright 2009-2011 Andreas Krennmair. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - "reflect" - - "github.com/google/gopacket" -) - -const ( - ICMPv4TypeEchoReply = 0 - ICMPv4TypeDestinationUnreachable = 3 - ICMPv4TypeSourceQuench = 4 - ICMPv4TypeRedirect = 5 - ICMPv4TypeEchoRequest = 8 - ICMPv4TypeRouterAdvertisement = 9 - ICMPv4TypeRouterSolicitation = 10 - ICMPv4TypeTimeExceeded = 11 - ICMPv4TypeParameterProblem = 12 - ICMPv4TypeTimestampRequest = 13 - ICMPv4TypeTimestampReply = 14 - ICMPv4TypeInfoRequest = 15 - ICMPv4TypeInfoReply = 16 - ICMPv4TypeAddressMaskRequest = 17 - ICMPv4TypeAddressMaskReply = 18 -) - -const ( - // DestinationUnreachable - ICMPv4CodeNet = 0 - ICMPv4CodeHost = 1 - ICMPv4CodeProtocol = 2 - ICMPv4CodePort = 3 - ICMPv4CodeFragmentationNeeded = 4 - ICMPv4CodeSourceRoutingFailed = 5 - ICMPv4CodeNetUnknown = 6 - ICMPv4CodeHostUnknown = 7 - ICMPv4CodeSourceIsolated = 8 - ICMPv4CodeNetAdminProhibited = 9 - ICMPv4CodeHostAdminProhibited = 10 - ICMPv4CodeNetTOS = 11 - ICMPv4CodeHostTOS = 12 - ICMPv4CodeCommAdminProhibited = 13 - ICMPv4CodeHostPrecedence = 14 - ICMPv4CodePrecedenceCutoff = 15 - - // TimeExceeded - ICMPv4CodeTTLExceeded = 0 - ICMPv4CodeFragmentReassemblyTimeExceeded = 1 - - // ParameterProblem - ICMPv4CodePointerIndicatesError = 0 - ICMPv4CodeMissingOption = 1 - ICMPv4CodeBadLength = 2 - - // Redirect - // ICMPv4CodeNet = same as for DestinationUnreachable - // ICMPv4CodeHost = same as for DestinationUnreachable - ICMPv4CodeTOSNet = 2 - ICMPv4CodeTOSHost = 3 -) - -type icmpv4TypeCodeInfoStruct struct { - typeStr string - codeStr *map[uint8]string -} - -var ( - icmpv4TypeCodeInfo = map[uint8]icmpv4TypeCodeInfoStruct{ - ICMPv4TypeDestinationUnreachable: icmpv4TypeCodeInfoStruct{ - "DestinationUnreachable", &map[uint8]string{ - ICMPv4CodeNet: "Net", - ICMPv4CodeHost: "Host", - ICMPv4CodeProtocol: "Protocol", - ICMPv4CodePort: "Port", - ICMPv4CodeFragmentationNeeded: "FragmentationNeeded", - ICMPv4CodeSourceRoutingFailed: "SourceRoutingFailed", - ICMPv4CodeNetUnknown: "NetUnknown", - ICMPv4CodeHostUnknown: "HostUnknown", - ICMPv4CodeSourceIsolated: "SourceIsolated", - ICMPv4CodeNetAdminProhibited: "NetAdminProhibited", - ICMPv4CodeHostAdminProhibited: "HostAdminProhibited", - ICMPv4CodeNetTOS: "NetTOS", - ICMPv4CodeHostTOS: "HostTOS", - ICMPv4CodeCommAdminProhibited: "CommAdminProhibited", - ICMPv4CodeHostPrecedence: "HostPrecedence", - ICMPv4CodePrecedenceCutoff: "PrecedenceCutoff", - }, - }, - ICMPv4TypeTimeExceeded: icmpv4TypeCodeInfoStruct{ - "TimeExceeded", &map[uint8]string{ - ICMPv4CodeTTLExceeded: "TTLExceeded", - ICMPv4CodeFragmentReassemblyTimeExceeded: "FragmentReassemblyTimeExceeded", - }, - }, - ICMPv4TypeParameterProblem: icmpv4TypeCodeInfoStruct{ - "ParameterProblem", &map[uint8]string{ - ICMPv4CodePointerIndicatesError: "PointerIndicatesError", - ICMPv4CodeMissingOption: "MissingOption", - ICMPv4CodeBadLength: "BadLength", - }, - }, - ICMPv4TypeSourceQuench: icmpv4TypeCodeInfoStruct{ - "SourceQuench", nil, - }, - ICMPv4TypeRedirect: icmpv4TypeCodeInfoStruct{ - "Redirect", &map[uint8]string{ - ICMPv4CodeNet: "Net", - ICMPv4CodeHost: "Host", - ICMPv4CodeTOSNet: "TOS+Net", - ICMPv4CodeTOSHost: "TOS+Host", - }, - }, - ICMPv4TypeEchoRequest: icmpv4TypeCodeInfoStruct{ - "EchoRequest", nil, - }, - ICMPv4TypeEchoReply: icmpv4TypeCodeInfoStruct{ - "EchoReply", nil, - }, - ICMPv4TypeTimestampRequest: icmpv4TypeCodeInfoStruct{ - "TimestampRequest", nil, - }, - ICMPv4TypeTimestampReply: icmpv4TypeCodeInfoStruct{ - "TimestampReply", nil, - }, - ICMPv4TypeInfoRequest: icmpv4TypeCodeInfoStruct{ - "InfoRequest", nil, - }, - ICMPv4TypeInfoReply: icmpv4TypeCodeInfoStruct{ - "InfoReply", nil, - }, - ICMPv4TypeRouterSolicitation: icmpv4TypeCodeInfoStruct{ - "RouterSolicitation", nil, - }, - ICMPv4TypeRouterAdvertisement: icmpv4TypeCodeInfoStruct{ - "RouterAdvertisement", nil, - }, - ICMPv4TypeAddressMaskRequest: icmpv4TypeCodeInfoStruct{ - "AddressMaskRequest", nil, - }, - ICMPv4TypeAddressMaskReply: icmpv4TypeCodeInfoStruct{ - "AddressMaskReply", nil, - }, - } -) - -type ICMPv4TypeCode uint16 - -// Type returns the ICMPv4 type field. -func (a ICMPv4TypeCode) Type() uint8 { - return uint8(a >> 8) -} - -// Code returns the ICMPv4 code field. -func (a ICMPv4TypeCode) Code() uint8 { - return uint8(a) -} - -func (a ICMPv4TypeCode) String() string { - t, c := a.Type(), a.Code() - strInfo, ok := icmpv4TypeCodeInfo[t] - if !ok { - // Unknown ICMPv4 type field - return fmt.Sprintf("%d(%d)", t, c) - } - typeStr := strInfo.typeStr - if strInfo.codeStr == nil && c == 0 { - // The ICMPv4 type does not make use of the code field - return fmt.Sprintf("%s", strInfo.typeStr) - } - if strInfo.codeStr == nil && c != 0 { - // The ICMPv4 type does not make use of the code field, but it is present anyway - return fmt.Sprintf("%s(Code: %d)", typeStr, c) - } - codeStr, ok := (*strInfo.codeStr)[c] - if !ok { - // We don't know this ICMPv4 code; print the numerical value - return fmt.Sprintf("%s(Code: %d)", typeStr, c) - } - return fmt.Sprintf("%s(%s)", typeStr, codeStr) -} - -func (a ICMPv4TypeCode) GoString() string { - t := reflect.TypeOf(a) - return fmt.Sprintf("%s(%d, %d)", t.String(), a.Type(), a.Code()) -} - -// SerializeTo writes the ICMPv4TypeCode value to the 'bytes' buffer. -func (a ICMPv4TypeCode) SerializeTo(bytes []byte) { - binary.BigEndian.PutUint16(bytes, uint16(a)) -} - -// CreateICMPv4TypeCode is a convenience function to create an ICMPv4TypeCode -// gopacket type from the ICMPv4 type and code values. -func CreateICMPv4TypeCode(typ uint8, code uint8) ICMPv4TypeCode { - return ICMPv4TypeCode(binary.BigEndian.Uint16([]byte{typ, code})) -} - -// ICMPv4 is the layer for IPv4 ICMP packet data. -type ICMPv4 struct { - BaseLayer - TypeCode ICMPv4TypeCode - Checksum uint16 - Id uint16 - Seq uint16 -} - -// LayerType returns LayerTypeICMPv4. -func (i *ICMPv4) LayerType() gopacket.LayerType { return LayerTypeICMPv4 } - -// DecodeFromBytes decodes the given bytes into this layer. -func (i *ICMPv4) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 8 { - df.SetTruncated() - return errors.New("ICMP layer less then 8 bytes for ICMPv4 packet") - } - i.TypeCode = CreateICMPv4TypeCode(data[0], data[1]) - i.Checksum = binary.BigEndian.Uint16(data[2:4]) - i.Id = binary.BigEndian.Uint16(data[4:6]) - i.Seq = binary.BigEndian.Uint16(data[6:8]) - i.BaseLayer = BaseLayer{data[:8], data[8:]} - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (i *ICMPv4) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - bytes, err := b.PrependBytes(8) - if err != nil { - return err - } - i.TypeCode.SerializeTo(bytes) - binary.BigEndian.PutUint16(bytes[4:], i.Id) - binary.BigEndian.PutUint16(bytes[6:], i.Seq) - if opts.ComputeChecksums { - bytes[2] = 0 - bytes[3] = 0 - i.Checksum = tcpipChecksum(b.Bytes(), 0) - } - binary.BigEndian.PutUint16(bytes[2:], i.Checksum) - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (i *ICMPv4) CanDecode() gopacket.LayerClass { - return LayerTypeICMPv4 -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (i *ICMPv4) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -func decodeICMPv4(data []byte, p gopacket.PacketBuilder) error { - i := &ICMPv4{} - return decodingLayerDecoder(i, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/icmp6.go b/vendor/github.com/google/gopacket/layers/icmp6.go deleted file mode 100644 index 09afd11a60..0000000000 --- a/vendor/github.com/google/gopacket/layers/icmp6.go +++ /dev/null @@ -1,266 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// Copyright 2009-2011 Andreas Krennmair. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - "reflect" - - "github.com/google/gopacket" -) - -const ( - // The following are from RFC 4443 - ICMPv6TypeDestinationUnreachable = 1 - ICMPv6TypePacketTooBig = 2 - ICMPv6TypeTimeExceeded = 3 - ICMPv6TypeParameterProblem = 4 - ICMPv6TypeEchoRequest = 128 - ICMPv6TypeEchoReply = 129 - - // The following are from RFC 4861 - ICMPv6TypeRouterSolicitation = 133 - ICMPv6TypeRouterAdvertisement = 134 - ICMPv6TypeNeighborSolicitation = 135 - ICMPv6TypeNeighborAdvertisement = 136 - ICMPv6TypeRedirect = 137 - - // The following are from RFC 2710 - ICMPv6TypeMLDv1MulticastListenerQueryMessage = 130 - ICMPv6TypeMLDv1MulticastListenerReportMessage = 131 - ICMPv6TypeMLDv1MulticastListenerDoneMessage = 132 - - // The following are from RFC 3810 - ICMPv6TypeMLDv2MulticastListenerReportMessageV2 = 143 -) - -const ( - // DestinationUnreachable - ICMPv6CodeNoRouteToDst = 0 - ICMPv6CodeAdminProhibited = 1 - ICMPv6CodeBeyondScopeOfSrc = 2 - ICMPv6CodeAddressUnreachable = 3 - ICMPv6CodePortUnreachable = 4 - ICMPv6CodeSrcAddressFailedPolicy = 5 - ICMPv6CodeRejectRouteToDst = 6 - - // TimeExceeded - ICMPv6CodeHopLimitExceeded = 0 - ICMPv6CodeFragmentReassemblyTimeExceeded = 1 - - // ParameterProblem - ICMPv6CodeErroneousHeaderField = 0 - ICMPv6CodeUnrecognizedNextHeader = 1 - ICMPv6CodeUnrecognizedIPv6Option = 2 -) - -type icmpv6TypeCodeInfoStruct struct { - typeStr string - codeStr *map[uint8]string -} - -var ( - icmpv6TypeCodeInfo = map[uint8]icmpv6TypeCodeInfoStruct{ - ICMPv6TypeDestinationUnreachable: icmpv6TypeCodeInfoStruct{ - "DestinationUnreachable", &map[uint8]string{ - ICMPv6CodeNoRouteToDst: "NoRouteToDst", - ICMPv6CodeAdminProhibited: "AdminProhibited", - ICMPv6CodeBeyondScopeOfSrc: "BeyondScopeOfSrc", - ICMPv6CodeAddressUnreachable: "AddressUnreachable", - ICMPv6CodePortUnreachable: "PortUnreachable", - ICMPv6CodeSrcAddressFailedPolicy: "SrcAddressFailedPolicy", - ICMPv6CodeRejectRouteToDst: "RejectRouteToDst", - }, - }, - ICMPv6TypePacketTooBig: icmpv6TypeCodeInfoStruct{ - "PacketTooBig", nil, - }, - ICMPv6TypeTimeExceeded: icmpv6TypeCodeInfoStruct{ - "TimeExceeded", &map[uint8]string{ - ICMPv6CodeHopLimitExceeded: "HopLimitExceeded", - ICMPv6CodeFragmentReassemblyTimeExceeded: "FragmentReassemblyTimeExceeded", - }, - }, - ICMPv6TypeParameterProblem: icmpv6TypeCodeInfoStruct{ - "ParameterProblem", &map[uint8]string{ - ICMPv6CodeErroneousHeaderField: "ErroneousHeaderField", - ICMPv6CodeUnrecognizedNextHeader: "UnrecognizedNextHeader", - ICMPv6CodeUnrecognizedIPv6Option: "UnrecognizedIPv6Option", - }, - }, - ICMPv6TypeEchoRequest: icmpv6TypeCodeInfoStruct{ - "EchoRequest", nil, - }, - ICMPv6TypeEchoReply: icmpv6TypeCodeInfoStruct{ - "EchoReply", nil, - }, - ICMPv6TypeRouterSolicitation: icmpv6TypeCodeInfoStruct{ - "RouterSolicitation", nil, - }, - ICMPv6TypeRouterAdvertisement: icmpv6TypeCodeInfoStruct{ - "RouterAdvertisement", nil, - }, - ICMPv6TypeNeighborSolicitation: icmpv6TypeCodeInfoStruct{ - "NeighborSolicitation", nil, - }, - ICMPv6TypeNeighborAdvertisement: icmpv6TypeCodeInfoStruct{ - "NeighborAdvertisement", nil, - }, - ICMPv6TypeRedirect: icmpv6TypeCodeInfoStruct{ - "Redirect", nil, - }, - } -) - -type ICMPv6TypeCode uint16 - -// Type returns the ICMPv6 type field. -func (a ICMPv6TypeCode) Type() uint8 { - return uint8(a >> 8) -} - -// Code returns the ICMPv6 code field. -func (a ICMPv6TypeCode) Code() uint8 { - return uint8(a) -} - -func (a ICMPv6TypeCode) String() string { - t, c := a.Type(), a.Code() - strInfo, ok := icmpv6TypeCodeInfo[t] - if !ok { - // Unknown ICMPv6 type field - return fmt.Sprintf("%d(%d)", t, c) - } - typeStr := strInfo.typeStr - if strInfo.codeStr == nil && c == 0 { - // The ICMPv6 type does not make use of the code field - return fmt.Sprintf("%s", strInfo.typeStr) - } - if strInfo.codeStr == nil && c != 0 { - // The ICMPv6 type does not make use of the code field, but it is present anyway - return fmt.Sprintf("%s(Code: %d)", typeStr, c) - } - codeStr, ok := (*strInfo.codeStr)[c] - if !ok { - // We don't know this ICMPv6 code; print the numerical value - return fmt.Sprintf("%s(Code: %d)", typeStr, c) - } - return fmt.Sprintf("%s(%s)", typeStr, codeStr) -} - -func (a ICMPv6TypeCode) GoString() string { - t := reflect.TypeOf(a) - return fmt.Sprintf("%s(%d, %d)", t.String(), a.Type(), a.Code()) -} - -// SerializeTo writes the ICMPv6TypeCode value to the 'bytes' buffer. -func (a ICMPv6TypeCode) SerializeTo(bytes []byte) { - binary.BigEndian.PutUint16(bytes, uint16(a)) -} - -// CreateICMPv6TypeCode is a convenience function to create an ICMPv6TypeCode -// gopacket type from the ICMPv6 type and code values. -func CreateICMPv6TypeCode(typ uint8, code uint8) ICMPv6TypeCode { - return ICMPv6TypeCode(binary.BigEndian.Uint16([]byte{typ, code})) -} - -// ICMPv6 is the layer for IPv6 ICMP packet data -type ICMPv6 struct { - BaseLayer - TypeCode ICMPv6TypeCode - Checksum uint16 - // TypeBytes is deprecated and always nil. See the different ICMPv6 message types - // instead (e.g. ICMPv6TypeRouterSolicitation). - TypeBytes []byte - tcpipchecksum -} - -// LayerType returns LayerTypeICMPv6. -func (i *ICMPv6) LayerType() gopacket.LayerType { return LayerTypeICMPv6 } - -// DecodeFromBytes decodes the given bytes into this layer. -func (i *ICMPv6) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 4 { - df.SetTruncated() - return errors.New("ICMP layer less then 4 bytes for ICMPv6 packet") - } - i.TypeCode = CreateICMPv6TypeCode(data[0], data[1]) - i.Checksum = binary.BigEndian.Uint16(data[2:4]) - i.BaseLayer = BaseLayer{data[:4], data[4:]} - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (i *ICMPv6) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - bytes, err := b.PrependBytes(4) - if err != nil { - return err - } - i.TypeCode.SerializeTo(bytes) - - if opts.ComputeChecksums { - bytes[2] = 0 - bytes[3] = 0 - csum, err := i.computeChecksum(b.Bytes(), IPProtocolICMPv6) - if err != nil { - return err - } - i.Checksum = csum - } - binary.BigEndian.PutUint16(bytes[2:], i.Checksum) - - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (i *ICMPv6) CanDecode() gopacket.LayerClass { - return LayerTypeICMPv6 -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (i *ICMPv6) NextLayerType() gopacket.LayerType { - switch i.TypeCode.Type() { - case ICMPv6TypeEchoRequest: - return LayerTypeICMPv6Echo - case ICMPv6TypeEchoReply: - return LayerTypeICMPv6Echo - case ICMPv6TypeRouterSolicitation: - return LayerTypeICMPv6RouterSolicitation - case ICMPv6TypeRouterAdvertisement: - return LayerTypeICMPv6RouterAdvertisement - case ICMPv6TypeNeighborSolicitation: - return LayerTypeICMPv6NeighborSolicitation - case ICMPv6TypeNeighborAdvertisement: - return LayerTypeICMPv6NeighborAdvertisement - case ICMPv6TypeRedirect: - return LayerTypeICMPv6Redirect - case ICMPv6TypeMLDv1MulticastListenerQueryMessage: // Same Code for MLDv1 Query and MLDv2 Query - if len(i.Payload) > 20 { // Only payload size differs - return LayerTypeMLDv2MulticastListenerQuery - } else { - return LayerTypeMLDv1MulticastListenerQuery - } - case ICMPv6TypeMLDv1MulticastListenerDoneMessage: - return LayerTypeMLDv1MulticastListenerDone - case ICMPv6TypeMLDv1MulticastListenerReportMessage: - return LayerTypeMLDv1MulticastListenerReport - case ICMPv6TypeMLDv2MulticastListenerReportMessageV2: - return LayerTypeMLDv2MulticastListenerReport - } - - return gopacket.LayerTypePayload -} - -func decodeICMPv6(data []byte, p gopacket.PacketBuilder) error { - i := &ICMPv6{} - return decodingLayerDecoder(i, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/icmp6msg.go b/vendor/github.com/google/gopacket/layers/icmp6msg.go deleted file mode 100644 index d9268db056..0000000000 --- a/vendor/github.com/google/gopacket/layers/icmp6msg.go +++ /dev/null @@ -1,578 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// Copyright 2009-2011 Andreas Krennmair. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "encoding/hex" - "errors" - "fmt" - "net" - "time" - - "github.com/google/gopacket" -) - -// Based on RFC 4861 - -// ICMPv6Opt indicate how to decode the data associated with each ICMPv6Option. -type ICMPv6Opt uint8 - -const ( - _ ICMPv6Opt = iota - - // ICMPv6OptSourceAddress contains the link-layer address of the sender of - // the packet. It is used in the Neighbor Solicitation, Router - // Solicitation, and Router Advertisement packets. Must be ignored for other - // Neighbor discovery messages. - ICMPv6OptSourceAddress - - // ICMPv6OptTargetAddress contains the link-layer address of the target. It - // is used in Neighbor Advertisement and Redirect packets. Must be ignored - // for other Neighbor discovery messages. - ICMPv6OptTargetAddress - - // ICMPv6OptPrefixInfo provides hosts with on-link prefixes and prefixes - // for Address Autoconfiguration. The Prefix Information option appears in - // Router Advertisement packets and MUST be silently ignored for other - // messages. - ICMPv6OptPrefixInfo - - // ICMPv6OptRedirectedHeader is used in Redirect messages and contains all - // or part of the packet that is being redirected. - ICMPv6OptRedirectedHeader - - // ICMPv6OptMTU is used in Router Advertisement messages to ensure that all - // nodes on a link use the same MTU value in those cases where the link MTU - // is not well known. This option MUST be silently ignored for other - // Neighbor Discovery messages. - ICMPv6OptMTU -) - -// ICMPv6Echo represents the structure of a ping. -type ICMPv6Echo struct { - BaseLayer - Identifier uint16 - SeqNumber uint16 -} - -// ICMPv6RouterSolicitation is sent by hosts to find routers. -type ICMPv6RouterSolicitation struct { - BaseLayer - Options ICMPv6Options -} - -// ICMPv6RouterAdvertisement is sent by routers in response to Solicitation. -type ICMPv6RouterAdvertisement struct { - BaseLayer - HopLimit uint8 - Flags uint8 - RouterLifetime uint16 - ReachableTime uint32 - RetransTimer uint32 - Options ICMPv6Options -} - -// ICMPv6NeighborSolicitation is sent to request the link-layer address of a -// target node. -type ICMPv6NeighborSolicitation struct { - BaseLayer - TargetAddress net.IP - Options ICMPv6Options -} - -// ICMPv6NeighborAdvertisement is sent by nodes in response to Solicitation. -type ICMPv6NeighborAdvertisement struct { - BaseLayer - Flags uint8 - TargetAddress net.IP - Options ICMPv6Options -} - -// ICMPv6Redirect is sent by routers to inform hosts of a better first-hop node -// on the path to a destination. -type ICMPv6Redirect struct { - BaseLayer - TargetAddress net.IP - DestinationAddress net.IP - Options ICMPv6Options -} - -// ICMPv6Option contains the type and data for a single option. -type ICMPv6Option struct { - Type ICMPv6Opt - Data []byte -} - -// ICMPv6Options is a slice of ICMPv6Option. -type ICMPv6Options []ICMPv6Option - -func (i ICMPv6Opt) String() string { - switch i { - case ICMPv6OptSourceAddress: - return "SourceAddress" - case ICMPv6OptTargetAddress: - return "TargetAddress" - case ICMPv6OptPrefixInfo: - return "PrefixInfo" - case ICMPv6OptRedirectedHeader: - return "RedirectedHeader" - case ICMPv6OptMTU: - return "MTU" - default: - return fmt.Sprintf("Unknown(%d)", i) - } -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (i *ICMPv6Echo) CanDecode() gopacket.LayerClass { - return LayerTypeICMPv6Echo -} - -// LayerType returns LayerTypeICMPv6Echo. -func (i *ICMPv6Echo) LayerType() gopacket.LayerType { - return LayerTypeICMPv6Echo -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (i *ICMPv6Echo) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (i *ICMPv6Echo) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 4 { - df.SetTruncated() - return errors.New("ICMP layer less then 4 bytes for ICMPv6 Echo") - } - i.Identifier = binary.BigEndian.Uint16(data[0:2]) - i.SeqNumber = binary.BigEndian.Uint16(data[2:4]) - - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (i *ICMPv6Echo) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - buf, err := b.PrependBytes(4) - if err != nil { - return err - } - - binary.BigEndian.PutUint16(buf, i.Identifier) - binary.BigEndian.PutUint16(buf[2:], i.SeqNumber) - return nil -} - -// LayerType returns LayerTypeICMPv6. -func (i *ICMPv6RouterSolicitation) LayerType() gopacket.LayerType { - return LayerTypeICMPv6RouterSolicitation -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (i *ICMPv6RouterSolicitation) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (i *ICMPv6RouterSolicitation) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - // first 4 bytes are reserved followed by options - if len(data) < 4 { - df.SetTruncated() - return errors.New("ICMP layer less then 4 bytes for ICMPv6 router solicitation") - } - - // truncate old options - i.Options = i.Options[:0] - - return i.Options.DecodeFromBytes(data[4:], df) -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (i *ICMPv6RouterSolicitation) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - if err := i.Options.SerializeTo(b, opts); err != nil { - return err - } - - buf, err := b.PrependBytes(4) - if err != nil { - return err - } - - copy(buf, lotsOfZeros[:4]) - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (i *ICMPv6RouterSolicitation) CanDecode() gopacket.LayerClass { - return LayerTypeICMPv6RouterSolicitation -} - -// LayerType returns LayerTypeICMPv6RouterAdvertisement. -func (i *ICMPv6RouterAdvertisement) LayerType() gopacket.LayerType { - return LayerTypeICMPv6RouterAdvertisement -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (i *ICMPv6RouterAdvertisement) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (i *ICMPv6RouterAdvertisement) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 12 { - df.SetTruncated() - return errors.New("ICMP layer less then 12 bytes for ICMPv6 router advertisement") - } - - i.HopLimit = uint8(data[0]) - // M, O bit followed by 6 reserved bits - i.Flags = uint8(data[1]) - i.RouterLifetime = binary.BigEndian.Uint16(data[2:4]) - i.ReachableTime = binary.BigEndian.Uint32(data[4:8]) - i.RetransTimer = binary.BigEndian.Uint32(data[8:12]) - i.BaseLayer = BaseLayer{data, nil} // assume no payload - - // truncate old options - i.Options = i.Options[:0] - - return i.Options.DecodeFromBytes(data[12:], df) -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (i *ICMPv6RouterAdvertisement) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - if err := i.Options.SerializeTo(b, opts); err != nil { - return err - } - - buf, err := b.PrependBytes(12) - if err != nil { - return err - } - - buf[0] = byte(i.HopLimit) - buf[1] = byte(i.Flags) - binary.BigEndian.PutUint16(buf[2:], i.RouterLifetime) - binary.BigEndian.PutUint32(buf[4:], i.ReachableTime) - binary.BigEndian.PutUint32(buf[8:], i.RetransTimer) - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (i *ICMPv6RouterAdvertisement) CanDecode() gopacket.LayerClass { - return LayerTypeICMPv6RouterAdvertisement -} - -// ManagedAddressConfig is true when addresses are available via DHCPv6. If -// set, the OtherConfig flag is redundant. -func (i *ICMPv6RouterAdvertisement) ManagedAddressConfig() bool { - return i.Flags&0x80 != 0 -} - -// OtherConfig is true when there is other configuration information available -// via DHCPv6. For example, DNS-related information. -func (i *ICMPv6RouterAdvertisement) OtherConfig() bool { - return i.Flags&0x40 != 0 -} - -// LayerType returns LayerTypeICMPv6NeighborSolicitation. -func (i *ICMPv6NeighborSolicitation) LayerType() gopacket.LayerType { - return LayerTypeICMPv6NeighborSolicitation -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (i *ICMPv6NeighborSolicitation) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (i *ICMPv6NeighborSolicitation) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 20 { - df.SetTruncated() - return errors.New("ICMP layer less then 20 bytes for ICMPv6 neighbor solicitation") - } - - i.TargetAddress = net.IP(data[4:20]) - i.BaseLayer = BaseLayer{data, nil} // assume no payload - - // truncate old options - i.Options = i.Options[:0] - - return i.Options.DecodeFromBytes(data[20:], df) -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (i *ICMPv6NeighborSolicitation) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - if err := i.Options.SerializeTo(b, opts); err != nil { - return err - } - - buf, err := b.PrependBytes(20) - if err != nil { - return err - } - - copy(buf, lotsOfZeros[:4]) - copy(buf[4:], i.TargetAddress) - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (i *ICMPv6NeighborSolicitation) CanDecode() gopacket.LayerClass { - return LayerTypeICMPv6NeighborSolicitation -} - -// LayerType returns LayerTypeICMPv6NeighborAdvertisement. -func (i *ICMPv6NeighborAdvertisement) LayerType() gopacket.LayerType { - return LayerTypeICMPv6NeighborAdvertisement -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (i *ICMPv6NeighborAdvertisement) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (i *ICMPv6NeighborAdvertisement) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 20 { - df.SetTruncated() - return errors.New("ICMP layer less then 20 bytes for ICMPv6 neighbor advertisement") - } - - i.Flags = uint8(data[0]) - i.TargetAddress = net.IP(data[4:20]) - i.BaseLayer = BaseLayer{data, nil} // assume no payload - - // truncate old options - i.Options = i.Options[:0] - - return i.Options.DecodeFromBytes(data[20:], df) -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (i *ICMPv6NeighborAdvertisement) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - if err := i.Options.SerializeTo(b, opts); err != nil { - return err - } - - buf, err := b.PrependBytes(20) - if err != nil { - return err - } - - buf[0] = byte(i.Flags) - copy(buf[1:], lotsOfZeros[:3]) - copy(buf[4:], i.TargetAddress) - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (i *ICMPv6NeighborAdvertisement) CanDecode() gopacket.LayerClass { - return LayerTypeICMPv6NeighborAdvertisement -} - -// Router indicates whether the sender is a router or not. -func (i *ICMPv6NeighborAdvertisement) Router() bool { - return i.Flags&0x80 != 0 -} - -// Solicited indicates whether the advertisement was solicited or not. -func (i *ICMPv6NeighborAdvertisement) Solicited() bool { - return i.Flags&0x40 != 0 -} - -// Override indicates whether the advertisement should Override an existing -// cache entry. -func (i *ICMPv6NeighborAdvertisement) Override() bool { - return i.Flags&0x20 != 0 -} - -// LayerType returns LayerTypeICMPv6Redirect. -func (i *ICMPv6Redirect) LayerType() gopacket.LayerType { - return LayerTypeICMPv6Redirect -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (i *ICMPv6Redirect) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (i *ICMPv6Redirect) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 36 { - df.SetTruncated() - return errors.New("ICMP layer less then 36 bytes for ICMPv6 redirect") - } - - i.TargetAddress = net.IP(data[4:20]) - i.DestinationAddress = net.IP(data[20:36]) - i.BaseLayer = BaseLayer{data, nil} // assume no payload - - // truncate old options - i.Options = i.Options[:0] - - return i.Options.DecodeFromBytes(data[36:], df) -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (i *ICMPv6Redirect) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - if err := i.Options.SerializeTo(b, opts); err != nil { - return err - } - - buf, err := b.PrependBytes(36) - if err != nil { - return err - } - - copy(buf, lotsOfZeros[:4]) - copy(buf[4:], i.TargetAddress) - copy(buf[20:], i.DestinationAddress) - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (i *ICMPv6Redirect) CanDecode() gopacket.LayerClass { - return LayerTypeICMPv6Redirect -} - -func (i ICMPv6Option) String() string { - hd := hex.EncodeToString(i.Data) - if len(hd) > 0 { - hd = " 0x" + hd - } - - switch i.Type { - case ICMPv6OptSourceAddress, ICMPv6OptTargetAddress: - return fmt.Sprintf("ICMPv6Option(%s:%v)", - i.Type, - net.HardwareAddr(i.Data)) - case ICMPv6OptPrefixInfo: - if len(i.Data) == 30 { - prefixLen := uint8(i.Data[0]) - onLink := (i.Data[1]&0x80 != 0) - autonomous := (i.Data[1]&0x40 != 0) - validLifetime := time.Duration(binary.BigEndian.Uint32(i.Data[2:6])) * time.Second - preferredLifetime := time.Duration(binary.BigEndian.Uint32(i.Data[6:10])) * time.Second - - prefix := net.IP(i.Data[14:]) - - return fmt.Sprintf("ICMPv6Option(%s:%v/%v:%t:%t:%v:%v)", - i.Type, - prefix, prefixLen, - onLink, autonomous, - validLifetime, preferredLifetime) - } - case ICMPv6OptRedirectedHeader: - // could invoke IP decoder on data... probably best not to - break - case ICMPv6OptMTU: - if len(i.Data) == 6 { - return fmt.Sprintf("ICMPv6Option(%s:%v)", - i.Type, - binary.BigEndian.Uint32(i.Data[2:])) - } - - } - return fmt.Sprintf("ICMPv6Option(%s:%s)", i.Type, hd) -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (i *ICMPv6Options) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - for len(data) > 0 { - if len(data) < 2 { - df.SetTruncated() - return errors.New("ICMP layer less then 2 bytes for ICMPv6 message option") - } - - // unit is 8 octets, convert to bytes - length := int(data[1]) * 8 - - if length == 0 { - df.SetTruncated() - return errors.New("ICMPv6 message option with length 0") - } - - if len(data) < length { - df.SetTruncated() - return fmt.Errorf("ICMP layer only %v bytes for ICMPv6 message option with length %v", len(data), length) - } - - o := ICMPv6Option{ - Type: ICMPv6Opt(data[0]), - Data: data[2:length], - } - - // chop off option we just consumed - data = data[length:] - - *i = append(*i, o) - } - - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (i *ICMPv6Options) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - for _, opt := range []ICMPv6Option(*i) { - length := len(opt.Data) + 2 - buf, err := b.PrependBytes(length) - if err != nil { - return err - } - - buf[0] = byte(opt.Type) - buf[1] = byte(length / 8) - copy(buf[2:], opt.Data) - } - - return nil -} - -func decodeICMPv6Echo(data []byte, p gopacket.PacketBuilder) error { - i := &ICMPv6Echo{} - return decodingLayerDecoder(i, data, p) -} - -func decodeICMPv6RouterSolicitation(data []byte, p gopacket.PacketBuilder) error { - i := &ICMPv6RouterSolicitation{} - return decodingLayerDecoder(i, data, p) -} - -func decodeICMPv6RouterAdvertisement(data []byte, p gopacket.PacketBuilder) error { - i := &ICMPv6RouterAdvertisement{} - return decodingLayerDecoder(i, data, p) -} - -func decodeICMPv6NeighborSolicitation(data []byte, p gopacket.PacketBuilder) error { - i := &ICMPv6NeighborSolicitation{} - return decodingLayerDecoder(i, data, p) -} - -func decodeICMPv6NeighborAdvertisement(data []byte, p gopacket.PacketBuilder) error { - i := &ICMPv6NeighborAdvertisement{} - return decodingLayerDecoder(i, data, p) -} - -func decodeICMPv6Redirect(data []byte, p gopacket.PacketBuilder) error { - i := &ICMPv6Redirect{} - return decodingLayerDecoder(i, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/igmp.go b/vendor/github.com/google/gopacket/layers/igmp.go deleted file mode 100644 index d00841535b..0000000000 --- a/vendor/github.com/google/gopacket/layers/igmp.go +++ /dev/null @@ -1,355 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// Copyright 2009-2011 Andreas Krennmair. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "net" - "time" - - "github.com/google/gopacket" -) - -type IGMPType uint8 - -const ( - IGMPMembershipQuery IGMPType = 0x11 // General or group specific query - IGMPMembershipReportV1 IGMPType = 0x12 // Version 1 Membership Report - IGMPMembershipReportV2 IGMPType = 0x16 // Version 2 Membership Report - IGMPLeaveGroup IGMPType = 0x17 // Leave Group - IGMPMembershipReportV3 IGMPType = 0x22 // Version 3 Membership Report -) - -// String conversions for IGMP message types -func (i IGMPType) String() string { - switch i { - case IGMPMembershipQuery: - return "IGMP Membership Query" - case IGMPMembershipReportV1: - return "IGMPv1 Membership Report" - case IGMPMembershipReportV2: - return "IGMPv2 Membership Report" - case IGMPMembershipReportV3: - return "IGMPv3 Membership Report" - case IGMPLeaveGroup: - return "Leave Group" - default: - return "" - } -} - -type IGMPv3GroupRecordType uint8 - -const ( - IGMPIsIn IGMPv3GroupRecordType = 0x01 // Type MODE_IS_INCLUDE, source addresses x - IGMPIsEx IGMPv3GroupRecordType = 0x02 // Type MODE_IS_EXCLUDE, source addresses x - IGMPToIn IGMPv3GroupRecordType = 0x03 // Type CHANGE_TO_INCLUDE_MODE, source addresses x - IGMPToEx IGMPv3GroupRecordType = 0x04 // Type CHANGE_TO_EXCLUDE_MODE, source addresses x - IGMPAllow IGMPv3GroupRecordType = 0x05 // Type ALLOW_NEW_SOURCES, source addresses x - IGMPBlock IGMPv3GroupRecordType = 0x06 // Type BLOCK_OLD_SOURCES, source addresses x -) - -func (i IGMPv3GroupRecordType) String() string { - switch i { - case IGMPIsIn: - return "MODE_IS_INCLUDE" - case IGMPIsEx: - return "MODE_IS_EXCLUDE" - case IGMPToIn: - return "CHANGE_TO_INCLUDE_MODE" - case IGMPToEx: - return "CHANGE_TO_EXCLUDE_MODE" - case IGMPAllow: - return "ALLOW_NEW_SOURCES" - case IGMPBlock: - return "BLOCK_OLD_SOURCES" - default: - return "" - } -} - -// IGMP represents an IGMPv3 message. -type IGMP struct { - BaseLayer - Type IGMPType - MaxResponseTime time.Duration - Checksum uint16 - GroupAddress net.IP - SupressRouterProcessing bool - RobustnessValue uint8 - IntervalTime time.Duration - SourceAddresses []net.IP - NumberOfGroupRecords uint16 - NumberOfSources uint16 - GroupRecords []IGMPv3GroupRecord - Version uint8 // IGMP protocol version -} - -// IGMPv1or2 stores header details for an IGMPv1 or IGMPv2 packet. -// -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Type | Max Resp Time | Checksum | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Group Address | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -type IGMPv1or2 struct { - BaseLayer - Type IGMPType // IGMP message type - MaxResponseTime time.Duration // meaningful only in Membership Query messages - Checksum uint16 // 16-bit checksum of entire ip payload - GroupAddress net.IP // either 0 or an IP multicast address - Version uint8 -} - -// decodeResponse dissects IGMPv1 or IGMPv2 packet. -func (i *IGMPv1or2) decodeResponse(data []byte) error { - if len(data) < 8 { - return errors.New("IGMP packet too small") - } - - i.MaxResponseTime = igmpTimeDecode(data[1]) - i.Checksum = binary.BigEndian.Uint16(data[2:4]) - i.GroupAddress = net.IP(data[4:8]) - - return nil -} - -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Type = 0x22 | Reserved | Checksum | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Reserved | Number of Group Records (M) | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . Group Record [1] . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . Group Record [2] . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . Group Record [M] . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Record Type | Aux Data Len | Number of Sources (N) | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Multicast Address | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Source Address [1] | -// +- -+ -// | Source Address [2] | -// +- -+ -// | Source Address [N] | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . Auxiliary Data . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - -// IGMPv3GroupRecord stores individual group records for a V3 Membership Report message. -type IGMPv3GroupRecord struct { - Type IGMPv3GroupRecordType - AuxDataLen uint8 // this should always be 0 as per IGMPv3 spec. - NumberOfSources uint16 - MulticastAddress net.IP - SourceAddresses []net.IP - AuxData uint32 // NOT USED -} - -func (i *IGMP) decodeIGMPv3MembershipReport(data []byte) error { - if len(data) < 8 { - return errors.New("IGMPv3 Membership Report too small #1") - } - - i.Checksum = binary.BigEndian.Uint16(data[2:4]) - i.NumberOfGroupRecords = binary.BigEndian.Uint16(data[6:8]) - - recordOffset := 8 - for j := 0; j < int(i.NumberOfGroupRecords); j++ { - if len(data) < recordOffset+8 { - return errors.New("IGMPv3 Membership Report too small #2") - } - - var gr IGMPv3GroupRecord - gr.Type = IGMPv3GroupRecordType(data[recordOffset]) - gr.AuxDataLen = data[recordOffset+1] - gr.NumberOfSources = binary.BigEndian.Uint16(data[recordOffset+2 : recordOffset+4]) - gr.MulticastAddress = net.IP(data[recordOffset+4 : recordOffset+8]) - - if len(data) < recordOffset+8+int(gr.NumberOfSources)*4 { - return errors.New("IGMPv3 Membership Report too small #3") - } - - // append source address records. - for i := 0; i < int(gr.NumberOfSources); i++ { - sourceAddr := net.IP(data[recordOffset+8+i*4 : recordOffset+12+i*4]) - gr.SourceAddresses = append(gr.SourceAddresses, sourceAddr) - } - - i.GroupRecords = append(i.GroupRecords, gr) - recordOffset += 8 + 4*int(gr.NumberOfSources) - } - return nil -} - -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Type = 0x11 | Max Resp Code | Checksum | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Group Address | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Resv |S| QRV | QQIC | Number of Sources (N) | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Source Address [1] | -// +- -+ -// | Source Address [2] | -// +- . -+ -// | Source Address [N] | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// -// decodeIGMPv3MembershipQuery parses the IGMPv3 message of type 0x11 -func (i *IGMP) decodeIGMPv3MembershipQuery(data []byte) error { - if len(data) < 12 { - return errors.New("IGMPv3 Membership Query too small #1") - } - - i.MaxResponseTime = igmpTimeDecode(data[1]) - i.Checksum = binary.BigEndian.Uint16(data[2:4]) - i.SupressRouterProcessing = data[8]&0x8 != 0 - i.GroupAddress = net.IP(data[4:8]) - i.RobustnessValue = data[8] & 0x7 - i.IntervalTime = igmpTimeDecode(data[9]) - i.NumberOfSources = binary.BigEndian.Uint16(data[10:12]) - - if len(data) < 12+int(i.NumberOfSources)*4 { - return errors.New("IGMPv3 Membership Query too small #2") - } - - for j := 0; j < int(i.NumberOfSources); j++ { - i.SourceAddresses = append(i.SourceAddresses, net.IP(data[12+j*4:16+j*4])) - } - - return nil -} - -// igmpTimeDecode decodes the duration created by the given byte, using the -// algorithm in http://www.rfc-base.org/txt/rfc-3376.txt section 4.1.1. -func igmpTimeDecode(t uint8) time.Duration { - if t&0x80 == 0 { - return time.Millisecond * 100 * time.Duration(t) - } - mant := (t & 0x70) >> 4 - exp := t & 0x0F - return time.Millisecond * 100 * time.Duration((mant|0x10)<<(exp+3)) -} - -// LayerType returns LayerTypeIGMP for the V1,2,3 message protocol formats. -func (i *IGMP) LayerType() gopacket.LayerType { return LayerTypeIGMP } -func (i *IGMPv1or2) LayerType() gopacket.LayerType { return LayerTypeIGMP } - -func (i *IGMPv1or2) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 8 { - return errors.New("IGMP Packet too small") - } - - i.Type = IGMPType(data[0]) - i.MaxResponseTime = igmpTimeDecode(data[1]) - i.Checksum = binary.BigEndian.Uint16(data[2:4]) - i.GroupAddress = net.IP(data[4:8]) - - return nil -} - -func (i *IGMPv1or2) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypeZero -} - -func (i *IGMPv1or2) CanDecode() gopacket.LayerClass { - return LayerTypeIGMP -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (i *IGMP) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 1 { - return errors.New("IGMP packet is too small") - } - - // common IGMP header values between versions 1..3 of IGMP specification.. - i.Type = IGMPType(data[0]) - - switch i.Type { - case IGMPMembershipQuery: - i.decodeIGMPv3MembershipQuery(data) - case IGMPMembershipReportV3: - i.decodeIGMPv3MembershipReport(data) - default: - return errors.New("unsupported IGMP type") - } - - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (i *IGMP) CanDecode() gopacket.LayerClass { - return LayerTypeIGMP -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (i *IGMP) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypeZero -} - -// decodeIGMP will parse IGMP v1,2 or 3 protocols. Checks against the -// IGMP type are performed against byte[0], logic then iniitalizes and -// passes the appropriate struct (IGMP or IGMPv1or2) to -// decodingLayerDecoder. -func decodeIGMP(data []byte, p gopacket.PacketBuilder) error { - if len(data) < 1 { - return errors.New("IGMP packet is too small") - } - - // byte 0 contains IGMP message type. - switch IGMPType(data[0]) { - case IGMPMembershipQuery: - // IGMPv3 Membership Query payload is >= 12 - if len(data) >= 12 { - i := &IGMP{Version: 3} - return decodingLayerDecoder(i, data, p) - } else if len(data) == 8 { - i := &IGMPv1or2{} - if data[1] == 0x00 { - i.Version = 1 // IGMPv1 has a query length of 8 and MaxResp = 0 - } else { - i.Version = 2 // IGMPv2 has a query length of 8 and MaxResp != 0 - } - - return decodingLayerDecoder(i, data, p) - } - case IGMPMembershipReportV3: - i := &IGMP{Version: 3} - return decodingLayerDecoder(i, data, p) - case IGMPMembershipReportV1: - i := &IGMPv1or2{Version: 1} - return decodingLayerDecoder(i, data, p) - case IGMPLeaveGroup, IGMPMembershipReportV2: - // leave group and Query Report v2 used in IGMPv2 only. - i := &IGMPv1or2{Version: 2} - return decodingLayerDecoder(i, data, p) - default: - } - - return errors.New("Unable to determine IGMP type.") -} diff --git a/vendor/github.com/google/gopacket/layers/ip4.go b/vendor/github.com/google/gopacket/layers/ip4.go deleted file mode 100644 index 2b3c0c6bff..0000000000 --- a/vendor/github.com/google/gopacket/layers/ip4.go +++ /dev/null @@ -1,325 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// Copyright 2009-2011 Andreas Krennmair. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - "net" - "strings" - - "github.com/google/gopacket" -) - -type IPv4Flag uint8 - -const ( - IPv4EvilBit IPv4Flag = 1 << 2 // http://tools.ietf.org/html/rfc3514 ;) - IPv4DontFragment IPv4Flag = 1 << 1 - IPv4MoreFragments IPv4Flag = 1 << 0 -) - -func (f IPv4Flag) String() string { - var s []string - if f&IPv4EvilBit != 0 { - s = append(s, "Evil") - } - if f&IPv4DontFragment != 0 { - s = append(s, "DF") - } - if f&IPv4MoreFragments != 0 { - s = append(s, "MF") - } - return strings.Join(s, "|") -} - -// IPv4 is the header of an IP packet. -type IPv4 struct { - BaseLayer - Version uint8 - IHL uint8 - TOS uint8 - Length uint16 - Id uint16 - Flags IPv4Flag - FragOffset uint16 - TTL uint8 - Protocol IPProtocol - Checksum uint16 - SrcIP net.IP - DstIP net.IP - Options []IPv4Option - Padding []byte -} - -// LayerType returns LayerTypeIPv4 -func (i *IPv4) LayerType() gopacket.LayerType { return LayerTypeIPv4 } -func (i *IPv4) NetworkFlow() gopacket.Flow { - return gopacket.NewFlow(EndpointIPv4, i.SrcIP, i.DstIP) -} - -type IPv4Option struct { - OptionType uint8 - OptionLength uint8 - OptionData []byte -} - -func (i IPv4Option) String() string { - return fmt.Sprintf("IPv4Option(%v:%v)", i.OptionType, i.OptionData) -} - -// for the current ipv4 options, return the number of bytes (including -// padding that the options used) -func (ip *IPv4) getIPv4OptionSize() uint8 { - optionSize := uint8(0) - for _, opt := range ip.Options { - switch opt.OptionType { - case 0: - // this is the end of option lists - optionSize++ - case 1: - // this is the padding - optionSize++ - default: - optionSize += opt.OptionLength - - } - } - // make sure the options are aligned to 32 bit boundary - if (optionSize % 4) != 0 { - optionSize += 4 - (optionSize % 4) - } - return optionSize -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -func (ip *IPv4) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - optionLength := ip.getIPv4OptionSize() - bytes, err := b.PrependBytes(20 + int(optionLength)) - if err != nil { - return err - } - if opts.FixLengths { - ip.IHL = 5 + (optionLength / 4) - ip.Length = uint16(len(b.Bytes())) - } - bytes[0] = (ip.Version << 4) | ip.IHL - bytes[1] = ip.TOS - binary.BigEndian.PutUint16(bytes[2:], ip.Length) - binary.BigEndian.PutUint16(bytes[4:], ip.Id) - binary.BigEndian.PutUint16(bytes[6:], ip.flagsfrags()) - bytes[8] = ip.TTL - bytes[9] = byte(ip.Protocol) - if err := ip.AddressTo4(); err != nil { - return err - } - copy(bytes[12:16], ip.SrcIP) - copy(bytes[16:20], ip.DstIP) - - curLocation := 20 - // Now, we will encode the options - for _, opt := range ip.Options { - switch opt.OptionType { - case 0: - // this is the end of option lists - bytes[curLocation] = 0 - curLocation++ - case 1: - // this is the padding - bytes[curLocation] = 1 - curLocation++ - default: - bytes[curLocation] = opt.OptionType - bytes[curLocation+1] = opt.OptionLength - - // sanity checking to protect us from buffer overrun - if len(opt.OptionData) > int(opt.OptionLength-2) { - return errors.New("option length is smaller than length of option data") - } - copy(bytes[curLocation+2:curLocation+int(opt.OptionLength)], opt.OptionData) - curLocation += int(opt.OptionLength) - } - } - - if opts.ComputeChecksums { - ip.Checksum = checksum(bytes) - } - binary.BigEndian.PutUint16(bytes[10:], ip.Checksum) - return nil -} - -func checksum(bytes []byte) uint16 { - // Clear checksum bytes - bytes[10] = 0 - bytes[11] = 0 - - // Compute checksum - var csum uint32 - for i := 0; i < len(bytes); i += 2 { - csum += uint32(bytes[i]) << 8 - csum += uint32(bytes[i+1]) - } - for { - // Break when sum is less or equals to 0xFFFF - if csum <= 65535 { - break - } - // Add carry to the sum - csum = (csum >> 16) + uint32(uint16(csum)) - } - // Flip all the bits - return ^uint16(csum) -} - -func (ip *IPv4) flagsfrags() (ff uint16) { - ff |= uint16(ip.Flags) << 13 - ff |= ip.FragOffset - return -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (ip *IPv4) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 20 { - df.SetTruncated() - return fmt.Errorf("Invalid ip4 header. Length %d less than 20", len(data)) - } - flagsfrags := binary.BigEndian.Uint16(data[6:8]) - - ip.Version = uint8(data[0]) >> 4 - ip.IHL = uint8(data[0]) & 0x0F - ip.TOS = data[1] - ip.Length = binary.BigEndian.Uint16(data[2:4]) - ip.Id = binary.BigEndian.Uint16(data[4:6]) - ip.Flags = IPv4Flag(flagsfrags >> 13) - ip.FragOffset = flagsfrags & 0x1FFF - ip.TTL = data[8] - ip.Protocol = IPProtocol(data[9]) - ip.Checksum = binary.BigEndian.Uint16(data[10:12]) - ip.SrcIP = data[12:16] - ip.DstIP = data[16:20] - ip.Options = ip.Options[:0] - ip.Padding = nil - // Set up an initial guess for contents/payload... we'll reset these soon. - ip.BaseLayer = BaseLayer{Contents: data} - - // This code is added for the following enviroment: - // * Windows 10 with TSO option activated. ( tested on Hyper-V, RealTek ethernet driver ) - if ip.Length == 0 { - // If using TSO(TCP Segmentation Offload), length is zero. - // The actual packet length is the length of data. - ip.Length = uint16(len(data)) - } - - if ip.Length < 20 { - return fmt.Errorf("Invalid (too small) IP length (%d < 20)", ip.Length) - } else if ip.IHL < 5 { - return fmt.Errorf("Invalid (too small) IP header length (%d < 5)", ip.IHL) - } else if int(ip.IHL*4) > int(ip.Length) { - return fmt.Errorf("Invalid IP header length > IP length (%d > %d)", ip.IHL, ip.Length) - } - if cmp := len(data) - int(ip.Length); cmp > 0 { - data = data[:ip.Length] - } else if cmp < 0 { - df.SetTruncated() - if int(ip.IHL)*4 > len(data) { - return errors.New("Not all IP header bytes available") - } - } - ip.Contents = data[:ip.IHL*4] - ip.Payload = data[ip.IHL*4:] - // From here on, data contains the header options. - data = data[20 : ip.IHL*4] - // Pull out IP options - for len(data) > 0 { - if ip.Options == nil { - // Pre-allocate to avoid growing the slice too much. - ip.Options = make([]IPv4Option, 0, 4) - } - opt := IPv4Option{OptionType: data[0]} - switch opt.OptionType { - case 0: // End of options - opt.OptionLength = 1 - ip.Options = append(ip.Options, opt) - ip.Padding = data[1:] - return nil - case 1: // 1 byte padding - opt.OptionLength = 1 - data = data[1:] - ip.Options = append(ip.Options, opt) - default: - if len(data) < 2 { - df.SetTruncated() - return fmt.Errorf("Invalid ip4 option length. Length %d less than 2", len(data)) - } - opt.OptionLength = data[1] - if len(data) < int(opt.OptionLength) { - df.SetTruncated() - return fmt.Errorf("IP option length exceeds remaining IP header size, option type %v length %v", opt.OptionType, opt.OptionLength) - } - if opt.OptionLength <= 2 { - return fmt.Errorf("Invalid IP option type %v length %d. Must be greater than 2", opt.OptionType, opt.OptionLength) - } - opt.OptionData = data[2:opt.OptionLength] - data = data[opt.OptionLength:] - ip.Options = append(ip.Options, opt) - } - } - return nil -} - -func (i *IPv4) CanDecode() gopacket.LayerClass { - return LayerTypeIPv4 -} - -func (i *IPv4) NextLayerType() gopacket.LayerType { - if i.Flags&IPv4MoreFragments != 0 || i.FragOffset != 0 { - return gopacket.LayerTypeFragment - } - return i.Protocol.LayerType() -} - -func decodeIPv4(data []byte, p gopacket.PacketBuilder) error { - ip := &IPv4{} - err := ip.DecodeFromBytes(data, p) - p.AddLayer(ip) - p.SetNetworkLayer(ip) - if err != nil { - return err - } - return p.NextDecoder(ip.NextLayerType()) -} - -func checkIPv4Address(addr net.IP) (net.IP, error) { - if c := addr.To4(); c != nil { - return c, nil - } - if len(addr) == net.IPv6len { - return nil, errors.New("address is IPv6") - } - return nil, fmt.Errorf("wrong length of %d bytes instead of %d", len(addr), net.IPv4len) -} - -func (ip *IPv4) AddressTo4() error { - var src, dst net.IP - - if addr, err := checkIPv4Address(ip.SrcIP); err != nil { - return fmt.Errorf("Invalid source IPv4 address (%s)", err) - } else { - src = addr - } - if addr, err := checkIPv4Address(ip.DstIP); err != nil { - return fmt.Errorf("Invalid destination IPv4 address (%s)", err) - } else { - dst = addr - } - ip.SrcIP = src - ip.DstIP = dst - return nil -} diff --git a/vendor/github.com/google/gopacket/layers/ip6.go b/vendor/github.com/google/gopacket/layers/ip6.go deleted file mode 100644 index 87b9d33d51..0000000000 --- a/vendor/github.com/google/gopacket/layers/ip6.go +++ /dev/null @@ -1,722 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// Copyright 2009-2011 Andreas Krennmair. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - "net" - - "github.com/google/gopacket" -) - -const ( - // IPv6HopByHopOptionJumbogram code as defined in RFC 2675 - IPv6HopByHopOptionJumbogram = 0xC2 -) - -const ( - ipv6MaxPayloadLength = 65535 -) - -// IPv6 is the layer for the IPv6 header. -type IPv6 struct { - // http://www.networksorcery.com/enp/protocol/ipv6.htm - BaseLayer - Version uint8 - TrafficClass uint8 - FlowLabel uint32 - Length uint16 - NextHeader IPProtocol - HopLimit uint8 - SrcIP net.IP - DstIP net.IP - HopByHop *IPv6HopByHop - // hbh will be pointed to by HopByHop if that layer exists. - hbh IPv6HopByHop -} - -// LayerType returns LayerTypeIPv6 -func (ipv6 *IPv6) LayerType() gopacket.LayerType { return LayerTypeIPv6 } - -// NetworkFlow returns this new Flow (EndpointIPv6, SrcIP, DstIP) -func (ipv6 *IPv6) NetworkFlow() gopacket.Flow { - return gopacket.NewFlow(EndpointIPv6, ipv6.SrcIP, ipv6.DstIP) -} - -// Search for Jumbo Payload TLV in IPv6HopByHop and return (length, true) if found -func getIPv6HopByHopJumboLength(hopopts *IPv6HopByHop) (uint32, bool, error) { - var tlv *IPv6HopByHopOption - - for _, t := range hopopts.Options { - if t.OptionType == IPv6HopByHopOptionJumbogram { - tlv = t - break - } - } - if tlv == nil { - // Not found - return 0, false, nil - } - if len(tlv.OptionData) != 4 { - return 0, false, errors.New("Jumbo length TLV data must have length 4") - } - l := binary.BigEndian.Uint32(tlv.OptionData) - if l <= ipv6MaxPayloadLength { - return 0, false, fmt.Errorf("Jumbo length cannot be less than %d", ipv6MaxPayloadLength+1) - } - // Found - return l, true, nil -} - -// Adds zero-valued Jumbo TLV to IPv6 header if it does not exist -// (if necessary add hop-by-hop header) -func addIPv6JumboOption(ip6 *IPv6) { - var tlv *IPv6HopByHopOption - - if ip6.HopByHop == nil { - // Add IPv6 HopByHop - ip6.HopByHop = &IPv6HopByHop{} - ip6.HopByHop.NextHeader = ip6.NextHeader - ip6.HopByHop.HeaderLength = 0 - ip6.NextHeader = IPProtocolIPv6HopByHop - } - for _, t := range ip6.HopByHop.Options { - if t.OptionType == IPv6HopByHopOptionJumbogram { - tlv = t - break - } - } - if tlv == nil { - // Add Jumbo TLV - tlv = &IPv6HopByHopOption{} - ip6.HopByHop.Options = append(ip6.HopByHop.Options, tlv) - } - tlv.SetJumboLength(0) -} - -// Set jumbo length in serialized IPv6 payload (starting with HopByHop header) -func setIPv6PayloadJumboLength(hbh []byte) error { - pLen := len(hbh) - if pLen < 8 { - //HopByHop is minimum 8 bytes - return fmt.Errorf("Invalid IPv6 payload (length %d)", pLen) - } - hbhLen := int((hbh[1] + 1) * 8) - if hbhLen > pLen { - return fmt.Errorf("Invalid hop-by-hop length (length: %d, payload: %d", hbhLen, pLen) - } - offset := 2 //start with options - for offset < hbhLen { - opt := hbh[offset] - if opt == 0 { - //Pad1 - offset++ - continue - } - optLen := int(hbh[offset+1]) - if opt == IPv6HopByHopOptionJumbogram { - if optLen == 4 { - binary.BigEndian.PutUint32(hbh[offset+2:], uint32(pLen)) - return nil - } - return fmt.Errorf("Jumbo TLV too short (%d bytes)", optLen) - } - offset += 2 + optLen - } - return errors.New("Jumbo TLV not found") -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (ipv6 *IPv6) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - var jumbo bool - var err error - - payload := b.Bytes() - pLen := len(payload) - if pLen > ipv6MaxPayloadLength { - jumbo = true - if opts.FixLengths { - // We need to set the length later because the hop-by-hop header may - // not exist or else need padding, so pLen may yet change - addIPv6JumboOption(ipv6) - } else if ipv6.HopByHop == nil { - return fmt.Errorf("Cannot fit payload length of %d into IPv6 packet", pLen) - } else { - _, ok, err := getIPv6HopByHopJumboLength(ipv6.HopByHop) - if err != nil { - return err - } - if !ok { - return errors.New("Missing jumbo length hop-by-hop option") - } - } - } - - hbhAlreadySerialized := false - if ipv6.HopByHop != nil { - for _, l := range b.Layers() { - if l == LayerTypeIPv6HopByHop { - hbhAlreadySerialized = true - break - } - } - } - if ipv6.HopByHop != nil && !hbhAlreadySerialized { - if ipv6.NextHeader != IPProtocolIPv6HopByHop { - // Just fix it instead of throwing an error - ipv6.NextHeader = IPProtocolIPv6HopByHop - } - err = ipv6.HopByHop.SerializeTo(b, opts) - if err != nil { - return err - } - payload = b.Bytes() - pLen = len(payload) - if opts.FixLengths && jumbo { - err := setIPv6PayloadJumboLength(payload) - if err != nil { - return err - } - } - } - - if !jumbo && pLen > ipv6MaxPayloadLength { - return errors.New("Cannot fit payload into IPv6 header") - } - bytes, err := b.PrependBytes(40) - if err != nil { - return err - } - bytes[0] = (ipv6.Version << 4) | (ipv6.TrafficClass >> 4) - bytes[1] = (ipv6.TrafficClass << 4) | uint8(ipv6.FlowLabel>>16) - binary.BigEndian.PutUint16(bytes[2:], uint16(ipv6.FlowLabel)) - if opts.FixLengths { - if jumbo { - ipv6.Length = 0 - } else { - ipv6.Length = uint16(pLen) - } - } - binary.BigEndian.PutUint16(bytes[4:], ipv6.Length) - bytes[6] = byte(ipv6.NextHeader) - bytes[7] = byte(ipv6.HopLimit) - if err := ipv6.AddressTo16(); err != nil { - return err - } - copy(bytes[8:], ipv6.SrcIP) - copy(bytes[24:], ipv6.DstIP) - return nil -} - -// DecodeFromBytes implementation according to gopacket.DecodingLayer -func (ipv6 *IPv6) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 40 { - df.SetTruncated() - return fmt.Errorf("Invalid ip6 header. Length %d less than 40", len(data)) - } - ipv6.Version = uint8(data[0]) >> 4 - ipv6.TrafficClass = uint8((binary.BigEndian.Uint16(data[0:2]) >> 4) & 0x00FF) - ipv6.FlowLabel = binary.BigEndian.Uint32(data[0:4]) & 0x000FFFFF - ipv6.Length = binary.BigEndian.Uint16(data[4:6]) - ipv6.NextHeader = IPProtocol(data[6]) - ipv6.HopLimit = data[7] - ipv6.SrcIP = data[8:24] - ipv6.DstIP = data[24:40] - ipv6.HopByHop = nil - ipv6.BaseLayer = BaseLayer{data[:40], data[40:]} - - // We treat a HopByHop IPv6 option as part of the IPv6 packet, since its - // options are crucial for understanding what's actually happening per packet. - if ipv6.NextHeader == IPProtocolIPv6HopByHop { - err := ipv6.hbh.DecodeFromBytes(ipv6.Payload, df) - if err != nil { - return err - } - ipv6.HopByHop = &ipv6.hbh - pEnd, jumbo, err := getIPv6HopByHopJumboLength(ipv6.HopByHop) - if err != nil { - return err - } - if jumbo && ipv6.Length == 0 { - pEnd := int(pEnd) - if pEnd > len(ipv6.Payload) { - df.SetTruncated() - pEnd = len(ipv6.Payload) - } - ipv6.Payload = ipv6.Payload[:pEnd] - return nil - } else if jumbo && ipv6.Length != 0 { - return errors.New("IPv6 has jumbo length and IPv6 length is not 0") - } else if !jumbo && ipv6.Length == 0 { - return errors.New("IPv6 length 0, but HopByHop header does not have jumbogram option") - } else { - ipv6.Payload = ipv6.Payload[ipv6.hbh.ActualLength:] - } - } - - if ipv6.Length == 0 { - return fmt.Errorf("IPv6 length 0, but next header is %v, not HopByHop", ipv6.NextHeader) - } - - pEnd := int(ipv6.Length) - if pEnd > len(ipv6.Payload) { - df.SetTruncated() - pEnd = len(ipv6.Payload) - } - ipv6.Payload = ipv6.Payload[:pEnd] - - return nil -} - -// CanDecode implementation according to gopacket.DecodingLayer -func (ipv6 *IPv6) CanDecode() gopacket.LayerClass { - return LayerTypeIPv6 -} - -// NextLayerType implementation according to gopacket.DecodingLayer -func (ipv6 *IPv6) NextLayerType() gopacket.LayerType { - if ipv6.HopByHop != nil { - return ipv6.HopByHop.NextHeader.LayerType() - } - return ipv6.NextHeader.LayerType() -} - -func decodeIPv6(data []byte, p gopacket.PacketBuilder) error { - ip6 := &IPv6{} - err := ip6.DecodeFromBytes(data, p) - p.AddLayer(ip6) - p.SetNetworkLayer(ip6) - if ip6.HopByHop != nil { - p.AddLayer(ip6.HopByHop) - } - if err != nil { - return err - } - return p.NextDecoder(ip6.NextLayerType()) -} - -type ipv6HeaderTLVOption struct { - OptionType, OptionLength uint8 - ActualLength int - OptionData []byte - OptionAlignment [2]uint8 // Xn+Y = [2]uint8{X, Y} -} - -func (h *ipv6HeaderTLVOption) serializeTo(data []byte, fixLengths bool, dryrun bool) int { - if fixLengths { - h.OptionLength = uint8(len(h.OptionData)) - } - length := int(h.OptionLength) + 2 - if !dryrun { - data[0] = h.OptionType - data[1] = h.OptionLength - copy(data[2:], h.OptionData) - } - return length -} - -func decodeIPv6HeaderTLVOption(data []byte, df gopacket.DecodeFeedback) (h *ipv6HeaderTLVOption, _ error) { - if len(data) < 2 { - df.SetTruncated() - return nil, errors.New("IPv6 header option too small") - } - h = &ipv6HeaderTLVOption{} - if data[0] == 0 { - h.ActualLength = 1 - return - } - h.OptionType = data[0] - h.OptionLength = data[1] - h.ActualLength = int(h.OptionLength) + 2 - if len(data) < h.ActualLength { - df.SetTruncated() - return nil, errors.New("IPv6 header TLV option too small") - } - h.OptionData = data[2:h.ActualLength] - return -} - -func serializeTLVOptionPadding(data []byte, padLength int) { - if padLength <= 0 { - return - } - if padLength == 1 { - data[0] = 0x0 - return - } - tlvLength := uint8(padLength) - 2 - data[0] = 0x1 - data[1] = tlvLength - if tlvLength != 0 { - for k := range data[2:] { - data[k+2] = 0x0 - } - } - return -} - -// If buf is 'nil' do a serialize dry run -func serializeIPv6HeaderTLVOptions(buf []byte, options []*ipv6HeaderTLVOption, fixLengths bool) int { - var l int - - dryrun := buf == nil - length := 2 - for _, opt := range options { - if fixLengths { - x := int(opt.OptionAlignment[0]) - y := int(opt.OptionAlignment[1]) - if x != 0 { - n := length / x - offset := x*n + y - if offset < length { - offset += x - } - if length != offset { - pad := offset - length - if !dryrun { - serializeTLVOptionPadding(buf[length-2:], pad) - } - length += pad - } - } - } - if dryrun { - l = opt.serializeTo(nil, fixLengths, true) - } else { - l = opt.serializeTo(buf[length-2:], fixLengths, false) - } - length += l - } - if fixLengths { - pad := length % 8 - if pad != 0 { - if !dryrun { - serializeTLVOptionPadding(buf[length-2:], pad) - } - length += pad - } - } - return length - 2 -} - -type ipv6ExtensionBase struct { - BaseLayer - NextHeader IPProtocol - HeaderLength uint8 - ActualLength int -} - -func decodeIPv6ExtensionBase(data []byte, df gopacket.DecodeFeedback) (i ipv6ExtensionBase, returnedErr error) { - if len(data) < 2 { - df.SetTruncated() - return ipv6ExtensionBase{}, fmt.Errorf("Invalid ip6-extension header. Length %d less than 2", len(data)) - } - i.NextHeader = IPProtocol(data[0]) - i.HeaderLength = data[1] - i.ActualLength = int(i.HeaderLength)*8 + 8 - if len(data) < i.ActualLength { - return ipv6ExtensionBase{}, fmt.Errorf("Invalid ip6-extension header. Length %d less than specified length %d", len(data), i.ActualLength) - } - i.Contents = data[:i.ActualLength] - i.Payload = data[i.ActualLength:] - return -} - -// IPv6ExtensionSkipper is a DecodingLayer which decodes and ignores v6 -// extensions. You can use it with a DecodingLayerParser to handle IPv6 stacks -// which may or may not have extensions. -type IPv6ExtensionSkipper struct { - NextHeader IPProtocol - BaseLayer -} - -// DecodeFromBytes implementation according to gopacket.DecodingLayer -func (i *IPv6ExtensionSkipper) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - extension, err := decodeIPv6ExtensionBase(data, df) - if err != nil { - return err - } - i.BaseLayer = BaseLayer{data[:extension.ActualLength], data[extension.ActualLength:]} - i.NextHeader = extension.NextHeader - return nil -} - -// CanDecode implementation according to gopacket.DecodingLayer -func (i *IPv6ExtensionSkipper) CanDecode() gopacket.LayerClass { - return LayerClassIPv6Extension -} - -// NextLayerType implementation according to gopacket.DecodingLayer -func (i *IPv6ExtensionSkipper) NextLayerType() gopacket.LayerType { - return i.NextHeader.LayerType() -} - -// IPv6HopByHopOption is a TLV option present in an IPv6 hop-by-hop extension. -type IPv6HopByHopOption ipv6HeaderTLVOption - -// IPv6HopByHop is the IPv6 hop-by-hop extension. -type IPv6HopByHop struct { - ipv6ExtensionBase - Options []*IPv6HopByHopOption -} - -// LayerType returns LayerTypeIPv6HopByHop. -func (i *IPv6HopByHop) LayerType() gopacket.LayerType { return LayerTypeIPv6HopByHop } - -// SerializeTo implementation according to gopacket.SerializableLayer -func (i *IPv6HopByHop) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - var bytes []byte - var err error - - o := make([]*ipv6HeaderTLVOption, 0, len(i.Options)) - for _, v := range i.Options { - o = append(o, (*ipv6HeaderTLVOption)(v)) - } - - l := serializeIPv6HeaderTLVOptions(nil, o, opts.FixLengths) - bytes, err = b.PrependBytes(l) - if err != nil { - return err - } - serializeIPv6HeaderTLVOptions(bytes, o, opts.FixLengths) - - length := len(bytes) + 2 - if length%8 != 0 { - return errors.New("IPv6HopByHop actual length must be multiple of 8") - } - bytes, err = b.PrependBytes(2) - if err != nil { - return err - } - bytes[0] = uint8(i.NextHeader) - if opts.FixLengths { - i.HeaderLength = uint8((length / 8) - 1) - } - bytes[1] = uint8(i.HeaderLength) - return nil -} - -// DecodeFromBytes implementation according to gopacket.DecodingLayer -func (i *IPv6HopByHop) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - var err error - i.ipv6ExtensionBase, err = decodeIPv6ExtensionBase(data, df) - if err != nil { - return err - } - i.Options = i.Options[:0] - offset := 2 - for offset < i.ActualLength { - opt, err := decodeIPv6HeaderTLVOption(data[offset:], df) - if err != nil { - return err - } - i.Options = append(i.Options, (*IPv6HopByHopOption)(opt)) - offset += opt.ActualLength - } - return nil -} - -func decodeIPv6HopByHop(data []byte, p gopacket.PacketBuilder) error { - i := &IPv6HopByHop{} - err := i.DecodeFromBytes(data, p) - p.AddLayer(i) - if err != nil { - return err - } - return p.NextDecoder(i.NextHeader) -} - -// SetJumboLength adds the IPv6HopByHopOptionJumbogram with the given length -func (o *IPv6HopByHopOption) SetJumboLength(len uint32) { - o.OptionType = IPv6HopByHopOptionJumbogram - o.OptionLength = 4 - o.ActualLength = 6 - if o.OptionData == nil { - o.OptionData = make([]byte, 4) - } - binary.BigEndian.PutUint32(o.OptionData, len) - o.OptionAlignment = [2]uint8{4, 2} -} - -// IPv6Routing is the IPv6 routing extension. -type IPv6Routing struct { - ipv6ExtensionBase - RoutingType uint8 - SegmentsLeft uint8 - // This segment is supposed to be zero according to RFC2460, the second set of - // 4 bytes in the extension. - Reserved []byte - // SourceRoutingIPs is the set of IPv6 addresses requested for source routing, - // set only if RoutingType == 0. - SourceRoutingIPs []net.IP -} - -// LayerType returns LayerTypeIPv6Routing. -func (i *IPv6Routing) LayerType() gopacket.LayerType { return LayerTypeIPv6Routing } - -func decodeIPv6Routing(data []byte, p gopacket.PacketBuilder) error { - base, err := decodeIPv6ExtensionBase(data, p) - if err != nil { - return err - } - i := &IPv6Routing{ - ipv6ExtensionBase: base, - RoutingType: data[2], - SegmentsLeft: data[3], - Reserved: data[4:8], - } - switch i.RoutingType { - case 0: // Source routing - if (i.ActualLength-8)%16 != 0 { - return fmt.Errorf("Invalid IPv6 source routing, length of type 0 packet %d", i.ActualLength) - } - for d := i.Contents[8:]; len(d) >= 16; d = d[16:] { - i.SourceRoutingIPs = append(i.SourceRoutingIPs, net.IP(d[:16])) - } - default: - return fmt.Errorf("Unknown IPv6 routing header type %d", i.RoutingType) - } - p.AddLayer(i) - return p.NextDecoder(i.NextHeader) -} - -// IPv6Fragment is the IPv6 fragment header, used for packet -// fragmentation/defragmentation. -type IPv6Fragment struct { - BaseLayer - NextHeader IPProtocol - // Reserved1 is bits [8-16), from least to most significant, 0-indexed - Reserved1 uint8 - FragmentOffset uint16 - // Reserved2 is bits [29-31), from least to most significant, 0-indexed - Reserved2 uint8 - MoreFragments bool - Identification uint32 -} - -// LayerType returns LayerTypeIPv6Fragment. -func (i *IPv6Fragment) LayerType() gopacket.LayerType { return LayerTypeIPv6Fragment } - -func decodeIPv6Fragment(data []byte, p gopacket.PacketBuilder) error { - if len(data) < 8 { - p.SetTruncated() - return fmt.Errorf("Invalid ip6-fragment header. Length %d less than 8", len(data)) - } - i := &IPv6Fragment{ - BaseLayer: BaseLayer{data[:8], data[8:]}, - NextHeader: IPProtocol(data[0]), - Reserved1: data[1], - FragmentOffset: binary.BigEndian.Uint16(data[2:4]) >> 3, - Reserved2: data[3] & 0x6 >> 1, - MoreFragments: data[3]&0x1 != 0, - Identification: binary.BigEndian.Uint32(data[4:8]), - } - p.AddLayer(i) - return p.NextDecoder(gopacket.DecodeFragment) -} - -// IPv6DestinationOption is a TLV option present in an IPv6 destination options extension. -type IPv6DestinationOption ipv6HeaderTLVOption - -// IPv6Destination is the IPv6 destination options header. -type IPv6Destination struct { - ipv6ExtensionBase - Options []*IPv6DestinationOption -} - -// LayerType returns LayerTypeIPv6Destination. -func (i *IPv6Destination) LayerType() gopacket.LayerType { return LayerTypeIPv6Destination } - -// DecodeFromBytes implementation according to gopacket.DecodingLayer -func (i *IPv6Destination) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - var err error - i.ipv6ExtensionBase, err = decodeIPv6ExtensionBase(data, df) - if err != nil { - return err - } - offset := 2 - for offset < i.ActualLength { - opt, err := decodeIPv6HeaderTLVOption(data[offset:], df) - if err != nil { - return err - } - i.Options = append(i.Options, (*IPv6DestinationOption)(opt)) - offset += opt.ActualLength - } - return nil -} - -func decodeIPv6Destination(data []byte, p gopacket.PacketBuilder) error { - i := &IPv6Destination{} - err := i.DecodeFromBytes(data, p) - p.AddLayer(i) - if err != nil { - return err - } - return p.NextDecoder(i.NextHeader) -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (i *IPv6Destination) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - var bytes []byte - var err error - - o := make([]*ipv6HeaderTLVOption, 0, len(i.Options)) - for _, v := range i.Options { - o = append(o, (*ipv6HeaderTLVOption)(v)) - } - - l := serializeIPv6HeaderTLVOptions(nil, o, opts.FixLengths) - bytes, err = b.PrependBytes(l) - if err != nil { - return err - } - serializeIPv6HeaderTLVOptions(bytes, o, opts.FixLengths) - - length := len(bytes) + 2 - if length%8 != 0 { - return errors.New("IPv6Destination actual length must be multiple of 8") - } - bytes, err = b.PrependBytes(2) - if err != nil { - return err - } - bytes[0] = uint8(i.NextHeader) - if opts.FixLengths { - i.HeaderLength = uint8((length / 8) - 1) - } - bytes[1] = uint8(i.HeaderLength) - return nil -} - -func checkIPv6Address(addr net.IP) error { - if len(addr) == net.IPv6len { - return nil - } - if len(addr) == net.IPv4len { - return errors.New("address is IPv4") - } - return fmt.Errorf("wrong length of %d bytes instead of %d", len(addr), net.IPv6len) -} - -// AddressTo16 ensures IPv6.SrcIP and IPv6.DstIP are actually IPv6 addresses (i.e. 16 byte addresses) -func (ipv6 *IPv6) AddressTo16() error { - if err := checkIPv6Address(ipv6.SrcIP); err != nil { - return fmt.Errorf("Invalid source IPv6 address (%s)", err) - } - if err := checkIPv6Address(ipv6.DstIP); err != nil { - return fmt.Errorf("Invalid destination IPv6 address (%s)", err) - } - return nil -} diff --git a/vendor/github.com/google/gopacket/layers/ipsec.go b/vendor/github.com/google/gopacket/layers/ipsec.go deleted file mode 100644 index 12f31caf67..0000000000 --- a/vendor/github.com/google/gopacket/layers/ipsec.go +++ /dev/null @@ -1,77 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "github.com/google/gopacket" -) - -// IPSecAH is the authentication header for IPv4/6 defined in -// http://tools.ietf.org/html/rfc2402 -type IPSecAH struct { - // While the auth header can be used for both IPv4 and v6, its format is that of - // an IPv6 extension (NextHeader, PayloadLength, etc...), so we use ipv6ExtensionBase - // to build it. - ipv6ExtensionBase - Reserved uint16 - SPI, Seq uint32 - AuthenticationData []byte -} - -// LayerType returns LayerTypeIPSecAH. -func (i *IPSecAH) LayerType() gopacket.LayerType { return LayerTypeIPSecAH } - -func decodeIPSecAH(data []byte, p gopacket.PacketBuilder) error { - if len(data) < 12 { - p.SetTruncated() - return errors.New("IPSec AH packet less than 12 bytes") - } - i := &IPSecAH{ - ipv6ExtensionBase: ipv6ExtensionBase{ - NextHeader: IPProtocol(data[0]), - HeaderLength: data[1], - }, - Reserved: binary.BigEndian.Uint16(data[2:4]), - SPI: binary.BigEndian.Uint32(data[4:8]), - Seq: binary.BigEndian.Uint32(data[8:12]), - } - i.ActualLength = (int(i.HeaderLength) + 2) * 4 - if len(data) < i.ActualLength { - p.SetTruncated() - return errors.New("Truncated AH packet < ActualLength") - } - i.AuthenticationData = data[12:i.ActualLength] - i.Contents = data[:i.ActualLength] - i.Payload = data[i.ActualLength:] - p.AddLayer(i) - return p.NextDecoder(i.NextHeader) -} - -// IPSecESP is the encapsulating security payload defined in -// http://tools.ietf.org/html/rfc2406 -type IPSecESP struct { - BaseLayer - SPI, Seq uint32 - // Encrypted contains the encrypted set of bytes sent in an ESP - Encrypted []byte -} - -// LayerType returns LayerTypeIPSecESP. -func (i *IPSecESP) LayerType() gopacket.LayerType { return LayerTypeIPSecESP } - -func decodeIPSecESP(data []byte, p gopacket.PacketBuilder) error { - i := &IPSecESP{ - BaseLayer: BaseLayer{data, nil}, - SPI: binary.BigEndian.Uint32(data[:4]), - Seq: binary.BigEndian.Uint32(data[4:8]), - Encrypted: data[8:], - } - p.AddLayer(i) - return nil -} diff --git a/vendor/github.com/google/gopacket/layers/layertypes.go b/vendor/github.com/google/gopacket/layers/layertypes.go deleted file mode 100644 index 69d25ae802..0000000000 --- a/vendor/github.com/google/gopacket/layers/layertypes.go +++ /dev/null @@ -1,223 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "github.com/google/gopacket" -) - -var ( - LayerTypeARP = gopacket.RegisterLayerType(10, gopacket.LayerTypeMetadata{Name: "ARP", Decoder: gopacket.DecodeFunc(decodeARP)}) - LayerTypeCiscoDiscovery = gopacket.RegisterLayerType(11, gopacket.LayerTypeMetadata{Name: "CiscoDiscovery", Decoder: gopacket.DecodeFunc(decodeCiscoDiscovery)}) - LayerTypeEthernetCTP = gopacket.RegisterLayerType(12, gopacket.LayerTypeMetadata{Name: "EthernetCTP", Decoder: gopacket.DecodeFunc(decodeEthernetCTP)}) - LayerTypeEthernetCTPForwardData = gopacket.RegisterLayerType(13, gopacket.LayerTypeMetadata{Name: "EthernetCTPForwardData", Decoder: nil}) - LayerTypeEthernetCTPReply = gopacket.RegisterLayerType(14, gopacket.LayerTypeMetadata{Name: "EthernetCTPReply", Decoder: nil}) - LayerTypeDot1Q = gopacket.RegisterLayerType(15, gopacket.LayerTypeMetadata{Name: "Dot1Q", Decoder: gopacket.DecodeFunc(decodeDot1Q)}) - LayerTypeEtherIP = gopacket.RegisterLayerType(16, gopacket.LayerTypeMetadata{Name: "EtherIP", Decoder: gopacket.DecodeFunc(decodeEtherIP)}) - LayerTypeEthernet = gopacket.RegisterLayerType(17, gopacket.LayerTypeMetadata{Name: "Ethernet", Decoder: gopacket.DecodeFunc(decodeEthernet)}) - LayerTypeGRE = gopacket.RegisterLayerType(18, gopacket.LayerTypeMetadata{Name: "GRE", Decoder: gopacket.DecodeFunc(decodeGRE)}) - LayerTypeICMPv4 = gopacket.RegisterLayerType(19, gopacket.LayerTypeMetadata{Name: "ICMPv4", Decoder: gopacket.DecodeFunc(decodeICMPv4)}) - LayerTypeIPv4 = gopacket.RegisterLayerType(20, gopacket.LayerTypeMetadata{Name: "IPv4", Decoder: gopacket.DecodeFunc(decodeIPv4)}) - LayerTypeIPv6 = gopacket.RegisterLayerType(21, gopacket.LayerTypeMetadata{Name: "IPv6", Decoder: gopacket.DecodeFunc(decodeIPv6)}) - LayerTypeLLC = gopacket.RegisterLayerType(22, gopacket.LayerTypeMetadata{Name: "LLC", Decoder: gopacket.DecodeFunc(decodeLLC)}) - LayerTypeSNAP = gopacket.RegisterLayerType(23, gopacket.LayerTypeMetadata{Name: "SNAP", Decoder: gopacket.DecodeFunc(decodeSNAP)}) - LayerTypeMPLS = gopacket.RegisterLayerType(24, gopacket.LayerTypeMetadata{Name: "MPLS", Decoder: gopacket.DecodeFunc(decodeMPLS)}) - LayerTypePPP = gopacket.RegisterLayerType(25, gopacket.LayerTypeMetadata{Name: "PPP", Decoder: gopacket.DecodeFunc(decodePPP)}) - LayerTypePPPoE = gopacket.RegisterLayerType(26, gopacket.LayerTypeMetadata{Name: "PPPoE", Decoder: gopacket.DecodeFunc(decodePPPoE)}) - LayerTypeRUDP = gopacket.RegisterLayerType(27, gopacket.LayerTypeMetadata{Name: "RUDP", Decoder: gopacket.DecodeFunc(decodeRUDP)}) - LayerTypeSCTP = gopacket.RegisterLayerType(28, gopacket.LayerTypeMetadata{Name: "SCTP", Decoder: gopacket.DecodeFunc(decodeSCTP)}) - LayerTypeSCTPUnknownChunkType = gopacket.RegisterLayerType(29, gopacket.LayerTypeMetadata{Name: "SCTPUnknownChunkType", Decoder: nil}) - LayerTypeSCTPData = gopacket.RegisterLayerType(30, gopacket.LayerTypeMetadata{Name: "SCTPData", Decoder: nil}) - LayerTypeSCTPInit = gopacket.RegisterLayerType(31, gopacket.LayerTypeMetadata{Name: "SCTPInit", Decoder: nil}) - LayerTypeSCTPSack = gopacket.RegisterLayerType(32, gopacket.LayerTypeMetadata{Name: "SCTPSack", Decoder: nil}) - LayerTypeSCTPHeartbeat = gopacket.RegisterLayerType(33, gopacket.LayerTypeMetadata{Name: "SCTPHeartbeat", Decoder: nil}) - LayerTypeSCTPError = gopacket.RegisterLayerType(34, gopacket.LayerTypeMetadata{Name: "SCTPError", Decoder: nil}) - LayerTypeSCTPShutdown = gopacket.RegisterLayerType(35, gopacket.LayerTypeMetadata{Name: "SCTPShutdown", Decoder: nil}) - LayerTypeSCTPShutdownAck = gopacket.RegisterLayerType(36, gopacket.LayerTypeMetadata{Name: "SCTPShutdownAck", Decoder: nil}) - LayerTypeSCTPCookieEcho = gopacket.RegisterLayerType(37, gopacket.LayerTypeMetadata{Name: "SCTPCookieEcho", Decoder: nil}) - LayerTypeSCTPEmptyLayer = gopacket.RegisterLayerType(38, gopacket.LayerTypeMetadata{Name: "SCTPEmptyLayer", Decoder: nil}) - LayerTypeSCTPInitAck = gopacket.RegisterLayerType(39, gopacket.LayerTypeMetadata{Name: "SCTPInitAck", Decoder: nil}) - LayerTypeSCTPHeartbeatAck = gopacket.RegisterLayerType(40, gopacket.LayerTypeMetadata{Name: "SCTPHeartbeatAck", Decoder: nil}) - LayerTypeSCTPAbort = gopacket.RegisterLayerType(41, gopacket.LayerTypeMetadata{Name: "SCTPAbort", Decoder: nil}) - LayerTypeSCTPShutdownComplete = gopacket.RegisterLayerType(42, gopacket.LayerTypeMetadata{Name: "SCTPShutdownComplete", Decoder: nil}) - LayerTypeSCTPCookieAck = gopacket.RegisterLayerType(43, gopacket.LayerTypeMetadata{Name: "SCTPCookieAck", Decoder: nil}) - LayerTypeTCP = gopacket.RegisterLayerType(44, gopacket.LayerTypeMetadata{Name: "TCP", Decoder: gopacket.DecodeFunc(decodeTCP)}) - LayerTypeUDP = gopacket.RegisterLayerType(45, gopacket.LayerTypeMetadata{Name: "UDP", Decoder: gopacket.DecodeFunc(decodeUDP)}) - LayerTypeIPv6HopByHop = gopacket.RegisterLayerType(46, gopacket.LayerTypeMetadata{Name: "IPv6HopByHop", Decoder: gopacket.DecodeFunc(decodeIPv6HopByHop)}) - LayerTypeIPv6Routing = gopacket.RegisterLayerType(47, gopacket.LayerTypeMetadata{Name: "IPv6Routing", Decoder: gopacket.DecodeFunc(decodeIPv6Routing)}) - LayerTypeIPv6Fragment = gopacket.RegisterLayerType(48, gopacket.LayerTypeMetadata{Name: "IPv6Fragment", Decoder: gopacket.DecodeFunc(decodeIPv6Fragment)}) - LayerTypeIPv6Destination = gopacket.RegisterLayerType(49, gopacket.LayerTypeMetadata{Name: "IPv6Destination", Decoder: gopacket.DecodeFunc(decodeIPv6Destination)}) - LayerTypeIPSecAH = gopacket.RegisterLayerType(50, gopacket.LayerTypeMetadata{Name: "IPSecAH", Decoder: gopacket.DecodeFunc(decodeIPSecAH)}) - LayerTypeIPSecESP = gopacket.RegisterLayerType(51, gopacket.LayerTypeMetadata{Name: "IPSecESP", Decoder: gopacket.DecodeFunc(decodeIPSecESP)}) - LayerTypeUDPLite = gopacket.RegisterLayerType(52, gopacket.LayerTypeMetadata{Name: "UDPLite", Decoder: gopacket.DecodeFunc(decodeUDPLite)}) - LayerTypeFDDI = gopacket.RegisterLayerType(53, gopacket.LayerTypeMetadata{Name: "FDDI", Decoder: gopacket.DecodeFunc(decodeFDDI)}) - LayerTypeLoopback = gopacket.RegisterLayerType(54, gopacket.LayerTypeMetadata{Name: "Loopback", Decoder: gopacket.DecodeFunc(decodeLoopback)}) - LayerTypeEAP = gopacket.RegisterLayerType(55, gopacket.LayerTypeMetadata{Name: "EAP", Decoder: gopacket.DecodeFunc(decodeEAP)}) - LayerTypeEAPOL = gopacket.RegisterLayerType(56, gopacket.LayerTypeMetadata{Name: "EAPOL", Decoder: gopacket.DecodeFunc(decodeEAPOL)}) - LayerTypeICMPv6 = gopacket.RegisterLayerType(57, gopacket.LayerTypeMetadata{Name: "ICMPv6", Decoder: gopacket.DecodeFunc(decodeICMPv6)}) - LayerTypeLinkLayerDiscovery = gopacket.RegisterLayerType(58, gopacket.LayerTypeMetadata{Name: "LinkLayerDiscovery", Decoder: gopacket.DecodeFunc(decodeLinkLayerDiscovery)}) - LayerTypeCiscoDiscoveryInfo = gopacket.RegisterLayerType(59, gopacket.LayerTypeMetadata{Name: "CiscoDiscoveryInfo", Decoder: gopacket.DecodeFunc(decodeCiscoDiscoveryInfo)}) - LayerTypeLinkLayerDiscoveryInfo = gopacket.RegisterLayerType(60, gopacket.LayerTypeMetadata{Name: "LinkLayerDiscoveryInfo", Decoder: nil}) - LayerTypeNortelDiscovery = gopacket.RegisterLayerType(61, gopacket.LayerTypeMetadata{Name: "NortelDiscovery", Decoder: gopacket.DecodeFunc(decodeNortelDiscovery)}) - LayerTypeIGMP = gopacket.RegisterLayerType(62, gopacket.LayerTypeMetadata{Name: "IGMP", Decoder: gopacket.DecodeFunc(decodeIGMP)}) - LayerTypePFLog = gopacket.RegisterLayerType(63, gopacket.LayerTypeMetadata{Name: "PFLog", Decoder: gopacket.DecodeFunc(decodePFLog)}) - LayerTypeRadioTap = gopacket.RegisterLayerType(64, gopacket.LayerTypeMetadata{Name: "RadioTap", Decoder: gopacket.DecodeFunc(decodeRadioTap)}) - LayerTypeDot11 = gopacket.RegisterLayerType(65, gopacket.LayerTypeMetadata{Name: "Dot11", Decoder: gopacket.DecodeFunc(decodeDot11)}) - LayerTypeDot11Ctrl = gopacket.RegisterLayerType(66, gopacket.LayerTypeMetadata{Name: "Dot11Ctrl", Decoder: gopacket.DecodeFunc(decodeDot11Ctrl)}) - LayerTypeDot11Data = gopacket.RegisterLayerType(67, gopacket.LayerTypeMetadata{Name: "Dot11Data", Decoder: gopacket.DecodeFunc(decodeDot11Data)}) - LayerTypeDot11DataCFAck = gopacket.RegisterLayerType(68, gopacket.LayerTypeMetadata{Name: "Dot11DataCFAck", Decoder: gopacket.DecodeFunc(decodeDot11DataCFAck)}) - LayerTypeDot11DataCFPoll = gopacket.RegisterLayerType(69, gopacket.LayerTypeMetadata{Name: "Dot11DataCFPoll", Decoder: gopacket.DecodeFunc(decodeDot11DataCFPoll)}) - LayerTypeDot11DataCFAckPoll = gopacket.RegisterLayerType(70, gopacket.LayerTypeMetadata{Name: "Dot11DataCFAckPoll", Decoder: gopacket.DecodeFunc(decodeDot11DataCFAckPoll)}) - LayerTypeDot11DataNull = gopacket.RegisterLayerType(71, gopacket.LayerTypeMetadata{Name: "Dot11DataNull", Decoder: gopacket.DecodeFunc(decodeDot11DataNull)}) - LayerTypeDot11DataCFAckNoData = gopacket.RegisterLayerType(72, gopacket.LayerTypeMetadata{Name: "Dot11DataCFAck", Decoder: gopacket.DecodeFunc(decodeDot11DataCFAck)}) - LayerTypeDot11DataCFPollNoData = gopacket.RegisterLayerType(73, gopacket.LayerTypeMetadata{Name: "Dot11DataCFPoll", Decoder: gopacket.DecodeFunc(decodeDot11DataCFPoll)}) - LayerTypeDot11DataCFAckPollNoData = gopacket.RegisterLayerType(74, gopacket.LayerTypeMetadata{Name: "Dot11DataCFAckPoll", Decoder: gopacket.DecodeFunc(decodeDot11DataCFAckPoll)}) - LayerTypeDot11DataQOSData = gopacket.RegisterLayerType(75, gopacket.LayerTypeMetadata{Name: "Dot11DataQOSData", Decoder: gopacket.DecodeFunc(decodeDot11DataQOSData)}) - LayerTypeDot11DataQOSDataCFAck = gopacket.RegisterLayerType(76, gopacket.LayerTypeMetadata{Name: "Dot11DataQOSDataCFAck", Decoder: gopacket.DecodeFunc(decodeDot11DataQOSDataCFAck)}) - LayerTypeDot11DataQOSDataCFPoll = gopacket.RegisterLayerType(77, gopacket.LayerTypeMetadata{Name: "Dot11DataQOSDataCFPoll", Decoder: gopacket.DecodeFunc(decodeDot11DataQOSDataCFPoll)}) - LayerTypeDot11DataQOSDataCFAckPoll = gopacket.RegisterLayerType(78, gopacket.LayerTypeMetadata{Name: "Dot11DataQOSDataCFAckPoll", Decoder: gopacket.DecodeFunc(decodeDot11DataQOSDataCFAckPoll)}) - LayerTypeDot11DataQOSNull = gopacket.RegisterLayerType(79, gopacket.LayerTypeMetadata{Name: "Dot11DataQOSNull", Decoder: gopacket.DecodeFunc(decodeDot11DataQOSNull)}) - LayerTypeDot11DataQOSCFPollNoData = gopacket.RegisterLayerType(80, gopacket.LayerTypeMetadata{Name: "Dot11DataQOSCFPoll", Decoder: gopacket.DecodeFunc(decodeDot11DataQOSCFPollNoData)}) - LayerTypeDot11DataQOSCFAckPollNoData = gopacket.RegisterLayerType(81, gopacket.LayerTypeMetadata{Name: "Dot11DataQOSCFAckPoll", Decoder: gopacket.DecodeFunc(decodeDot11DataQOSCFAckPollNoData)}) - LayerTypeDot11InformationElement = gopacket.RegisterLayerType(82, gopacket.LayerTypeMetadata{Name: "Dot11InformationElement", Decoder: gopacket.DecodeFunc(decodeDot11InformationElement)}) - LayerTypeDot11CtrlCTS = gopacket.RegisterLayerType(83, gopacket.LayerTypeMetadata{Name: "Dot11CtrlCTS", Decoder: gopacket.DecodeFunc(decodeDot11CtrlCTS)}) - LayerTypeDot11CtrlRTS = gopacket.RegisterLayerType(84, gopacket.LayerTypeMetadata{Name: "Dot11CtrlRTS", Decoder: gopacket.DecodeFunc(decodeDot11CtrlRTS)}) - LayerTypeDot11CtrlBlockAckReq = gopacket.RegisterLayerType(85, gopacket.LayerTypeMetadata{Name: "Dot11CtrlBlockAckReq", Decoder: gopacket.DecodeFunc(decodeDot11CtrlBlockAckReq)}) - LayerTypeDot11CtrlBlockAck = gopacket.RegisterLayerType(86, gopacket.LayerTypeMetadata{Name: "Dot11CtrlBlockAck", Decoder: gopacket.DecodeFunc(decodeDot11CtrlBlockAck)}) - LayerTypeDot11CtrlPowersavePoll = gopacket.RegisterLayerType(87, gopacket.LayerTypeMetadata{Name: "Dot11CtrlPowersavePoll", Decoder: gopacket.DecodeFunc(decodeDot11CtrlPowersavePoll)}) - LayerTypeDot11CtrlAck = gopacket.RegisterLayerType(88, gopacket.LayerTypeMetadata{Name: "Dot11CtrlAck", Decoder: gopacket.DecodeFunc(decodeDot11CtrlAck)}) - LayerTypeDot11CtrlCFEnd = gopacket.RegisterLayerType(89, gopacket.LayerTypeMetadata{Name: "Dot11CtrlCFEnd", Decoder: gopacket.DecodeFunc(decodeDot11CtrlCFEnd)}) - LayerTypeDot11CtrlCFEndAck = gopacket.RegisterLayerType(90, gopacket.LayerTypeMetadata{Name: "Dot11CtrlCFEndAck", Decoder: gopacket.DecodeFunc(decodeDot11CtrlCFEndAck)}) - LayerTypeDot11MgmtAssociationReq = gopacket.RegisterLayerType(91, gopacket.LayerTypeMetadata{Name: "Dot11MgmtAssociationReq", Decoder: gopacket.DecodeFunc(decodeDot11MgmtAssociationReq)}) - LayerTypeDot11MgmtAssociationResp = gopacket.RegisterLayerType(92, gopacket.LayerTypeMetadata{Name: "Dot11MgmtAssociationResp", Decoder: gopacket.DecodeFunc(decodeDot11MgmtAssociationResp)}) - LayerTypeDot11MgmtReassociationReq = gopacket.RegisterLayerType(93, gopacket.LayerTypeMetadata{Name: "Dot11MgmtReassociationReq", Decoder: gopacket.DecodeFunc(decodeDot11MgmtReassociationReq)}) - LayerTypeDot11MgmtReassociationResp = gopacket.RegisterLayerType(94, gopacket.LayerTypeMetadata{Name: "Dot11MgmtReassociationResp", Decoder: gopacket.DecodeFunc(decodeDot11MgmtReassociationResp)}) - LayerTypeDot11MgmtProbeReq = gopacket.RegisterLayerType(95, gopacket.LayerTypeMetadata{Name: "Dot11MgmtProbeReq", Decoder: gopacket.DecodeFunc(decodeDot11MgmtProbeReq)}) - LayerTypeDot11MgmtProbeResp = gopacket.RegisterLayerType(96, gopacket.LayerTypeMetadata{Name: "Dot11MgmtProbeResp", Decoder: gopacket.DecodeFunc(decodeDot11MgmtProbeResp)}) - LayerTypeDot11MgmtMeasurementPilot = gopacket.RegisterLayerType(97, gopacket.LayerTypeMetadata{Name: "Dot11MgmtMeasurementPilot", Decoder: gopacket.DecodeFunc(decodeDot11MgmtMeasurementPilot)}) - LayerTypeDot11MgmtBeacon = gopacket.RegisterLayerType(98, gopacket.LayerTypeMetadata{Name: "Dot11MgmtBeacon", Decoder: gopacket.DecodeFunc(decodeDot11MgmtBeacon)}) - LayerTypeDot11MgmtATIM = gopacket.RegisterLayerType(99, gopacket.LayerTypeMetadata{Name: "Dot11MgmtATIM", Decoder: gopacket.DecodeFunc(decodeDot11MgmtATIM)}) - LayerTypeDot11MgmtDisassociation = gopacket.RegisterLayerType(100, gopacket.LayerTypeMetadata{Name: "Dot11MgmtDisassociation", Decoder: gopacket.DecodeFunc(decodeDot11MgmtDisassociation)}) - LayerTypeDot11MgmtAuthentication = gopacket.RegisterLayerType(101, gopacket.LayerTypeMetadata{Name: "Dot11MgmtAuthentication", Decoder: gopacket.DecodeFunc(decodeDot11MgmtAuthentication)}) - LayerTypeDot11MgmtDeauthentication = gopacket.RegisterLayerType(102, gopacket.LayerTypeMetadata{Name: "Dot11MgmtDeauthentication", Decoder: gopacket.DecodeFunc(decodeDot11MgmtDeauthentication)}) - LayerTypeDot11MgmtAction = gopacket.RegisterLayerType(103, gopacket.LayerTypeMetadata{Name: "Dot11MgmtAction", Decoder: gopacket.DecodeFunc(decodeDot11MgmtAction)}) - LayerTypeDot11MgmtActionNoAck = gopacket.RegisterLayerType(104, gopacket.LayerTypeMetadata{Name: "Dot11MgmtActionNoAck", Decoder: gopacket.DecodeFunc(decodeDot11MgmtActionNoAck)}) - LayerTypeDot11MgmtArubaWLAN = gopacket.RegisterLayerType(105, gopacket.LayerTypeMetadata{Name: "Dot11MgmtArubaWLAN", Decoder: gopacket.DecodeFunc(decodeDot11MgmtArubaWLAN)}) - LayerTypeDot11WEP = gopacket.RegisterLayerType(106, gopacket.LayerTypeMetadata{Name: "Dot11WEP", Decoder: gopacket.DecodeFunc(decodeDot11WEP)}) - LayerTypeDNS = gopacket.RegisterLayerType(107, gopacket.LayerTypeMetadata{Name: "DNS", Decoder: gopacket.DecodeFunc(decodeDNS)}) - LayerTypeUSB = gopacket.RegisterLayerType(108, gopacket.LayerTypeMetadata{Name: "USB", Decoder: gopacket.DecodeFunc(decodeUSB)}) - LayerTypeUSBRequestBlockSetup = gopacket.RegisterLayerType(109, gopacket.LayerTypeMetadata{Name: "USBRequestBlockSetup", Decoder: gopacket.DecodeFunc(decodeUSBRequestBlockSetup)}) - LayerTypeUSBControl = gopacket.RegisterLayerType(110, gopacket.LayerTypeMetadata{Name: "USBControl", Decoder: gopacket.DecodeFunc(decodeUSBControl)}) - LayerTypeUSBInterrupt = gopacket.RegisterLayerType(111, gopacket.LayerTypeMetadata{Name: "USBInterrupt", Decoder: gopacket.DecodeFunc(decodeUSBInterrupt)}) - LayerTypeUSBBulk = gopacket.RegisterLayerType(112, gopacket.LayerTypeMetadata{Name: "USBBulk", Decoder: gopacket.DecodeFunc(decodeUSBBulk)}) - LayerTypeLinuxSLL = gopacket.RegisterLayerType(113, gopacket.LayerTypeMetadata{Name: "Linux SLL", Decoder: gopacket.DecodeFunc(decodeLinuxSLL)}) - LayerTypeSFlow = gopacket.RegisterLayerType(114, gopacket.LayerTypeMetadata{Name: "SFlow", Decoder: gopacket.DecodeFunc(decodeSFlow)}) - LayerTypePrismHeader = gopacket.RegisterLayerType(115, gopacket.LayerTypeMetadata{Name: "Prism monitor mode header", Decoder: gopacket.DecodeFunc(decodePrismHeader)}) - LayerTypeVXLAN = gopacket.RegisterLayerType(116, gopacket.LayerTypeMetadata{Name: "VXLAN", Decoder: gopacket.DecodeFunc(decodeVXLAN)}) - LayerTypeNTP = gopacket.RegisterLayerType(117, gopacket.LayerTypeMetadata{Name: "NTP", Decoder: gopacket.DecodeFunc(decodeNTP)}) - LayerTypeDHCPv4 = gopacket.RegisterLayerType(118, gopacket.LayerTypeMetadata{Name: "DHCPv4", Decoder: gopacket.DecodeFunc(decodeDHCPv4)}) - LayerTypeVRRP = gopacket.RegisterLayerType(119, gopacket.LayerTypeMetadata{Name: "VRRP", Decoder: gopacket.DecodeFunc(decodeVRRP)}) - LayerTypeGeneve = gopacket.RegisterLayerType(120, gopacket.LayerTypeMetadata{Name: "Geneve", Decoder: gopacket.DecodeFunc(decodeGeneve)}) - LayerTypeSTP = gopacket.RegisterLayerType(121, gopacket.LayerTypeMetadata{Name: "STP", Decoder: gopacket.DecodeFunc(decodeSTP)}) - LayerTypeBFD = gopacket.RegisterLayerType(122, gopacket.LayerTypeMetadata{Name: "BFD", Decoder: gopacket.DecodeFunc(decodeBFD)}) - LayerTypeOSPF = gopacket.RegisterLayerType(123, gopacket.LayerTypeMetadata{Name: "OSPF", Decoder: gopacket.DecodeFunc(decodeOSPF)}) - LayerTypeICMPv6RouterSolicitation = gopacket.RegisterLayerType(124, gopacket.LayerTypeMetadata{Name: "ICMPv6RouterSolicitation", Decoder: gopacket.DecodeFunc(decodeICMPv6RouterSolicitation)}) - LayerTypeICMPv6RouterAdvertisement = gopacket.RegisterLayerType(125, gopacket.LayerTypeMetadata{Name: "ICMPv6RouterAdvertisement", Decoder: gopacket.DecodeFunc(decodeICMPv6RouterAdvertisement)}) - LayerTypeICMPv6NeighborSolicitation = gopacket.RegisterLayerType(126, gopacket.LayerTypeMetadata{Name: "ICMPv6NeighborSolicitation", Decoder: gopacket.DecodeFunc(decodeICMPv6NeighborSolicitation)}) - LayerTypeICMPv6NeighborAdvertisement = gopacket.RegisterLayerType(127, gopacket.LayerTypeMetadata{Name: "ICMPv6NeighborAdvertisement", Decoder: gopacket.DecodeFunc(decodeICMPv6NeighborAdvertisement)}) - LayerTypeICMPv6Redirect = gopacket.RegisterLayerType(128, gopacket.LayerTypeMetadata{Name: "ICMPv6Redirect", Decoder: gopacket.DecodeFunc(decodeICMPv6Redirect)}) - LayerTypeGTPv1U = gopacket.RegisterLayerType(129, gopacket.LayerTypeMetadata{Name: "GTPv1U", Decoder: gopacket.DecodeFunc(decodeGTPv1u)}) - LayerTypeEAPOLKey = gopacket.RegisterLayerType(130, gopacket.LayerTypeMetadata{Name: "EAPOLKey", Decoder: gopacket.DecodeFunc(decodeEAPOLKey)}) - LayerTypeLCM = gopacket.RegisterLayerType(131, gopacket.LayerTypeMetadata{Name: "LCM", Decoder: gopacket.DecodeFunc(decodeLCM)}) - LayerTypeICMPv6Echo = gopacket.RegisterLayerType(132, gopacket.LayerTypeMetadata{Name: "ICMPv6Echo", Decoder: gopacket.DecodeFunc(decodeICMPv6Echo)}) - LayerTypeSIP = gopacket.RegisterLayerType(133, gopacket.LayerTypeMetadata{Name: "SIP", Decoder: gopacket.DecodeFunc(decodeSIP)}) - LayerTypeDHCPv6 = gopacket.RegisterLayerType(134, gopacket.LayerTypeMetadata{Name: "DHCPv6", Decoder: gopacket.DecodeFunc(decodeDHCPv6)}) - LayerTypeMLDv1MulticastListenerReport = gopacket.RegisterLayerType(135, gopacket.LayerTypeMetadata{Name: "MLDv1MulticastListenerReport", Decoder: gopacket.DecodeFunc(decodeMLDv1MulticastListenerReport)}) - LayerTypeMLDv1MulticastListenerDone = gopacket.RegisterLayerType(136, gopacket.LayerTypeMetadata{Name: "MLDv1MulticastListenerDone", Decoder: gopacket.DecodeFunc(decodeMLDv1MulticastListenerDone)}) - LayerTypeMLDv1MulticastListenerQuery = gopacket.RegisterLayerType(137, gopacket.LayerTypeMetadata{Name: "MLDv1MulticastListenerQuery", Decoder: gopacket.DecodeFunc(decodeMLDv1MulticastListenerQuery)}) - LayerTypeMLDv2MulticastListenerReport = gopacket.RegisterLayerType(138, gopacket.LayerTypeMetadata{Name: "MLDv2MulticastListenerReport", Decoder: gopacket.DecodeFunc(decodeMLDv2MulticastListenerReport)}) - LayerTypeMLDv2MulticastListenerQuery = gopacket.RegisterLayerType(139, gopacket.LayerTypeMetadata{Name: "MLDv2MulticastListenerQuery", Decoder: gopacket.DecodeFunc(decodeMLDv2MulticastListenerQuery)}) - LayerTypeTLS = gopacket.RegisterLayerType(140, gopacket.LayerTypeMetadata{Name: "TLS", Decoder: gopacket.DecodeFunc(decodeTLS)}) - LayerTypeModbusTCP = gopacket.RegisterLayerType(141, gopacket.LayerTypeMetadata{Name: "ModbusTCP", Decoder: gopacket.DecodeFunc(decodeModbusTCP)}) - LayerTypeRMCP = gopacket.RegisterLayerType(142, gopacket.LayerTypeMetadata{Name: "RMCP", Decoder: gopacket.DecodeFunc(decodeRMCP)}) - LayerTypeASF = gopacket.RegisterLayerType(143, gopacket.LayerTypeMetadata{Name: "ASF", Decoder: gopacket.DecodeFunc(decodeASF)}) - LayerTypeASFPresencePong = gopacket.RegisterLayerType(144, gopacket.LayerTypeMetadata{Name: "ASFPresencePong", Decoder: gopacket.DecodeFunc(decodeASFPresencePong)}) - LayerTypeERSPANII = gopacket.RegisterLayerType(145, gopacket.LayerTypeMetadata{Name: "ERSPAN Type II", Decoder: gopacket.DecodeFunc(decodeERSPANII)}) - LayerTypeRADIUS = gopacket.RegisterLayerType(146, gopacket.LayerTypeMetadata{Name: "RADIUS", Decoder: gopacket.DecodeFunc(decodeRADIUS)}) -) - -var ( - // LayerClassIPNetwork contains TCP/IP network layer types. - LayerClassIPNetwork = gopacket.NewLayerClass([]gopacket.LayerType{ - LayerTypeIPv4, - LayerTypeIPv6, - }) - // LayerClassIPTransport contains TCP/IP transport layer types. - LayerClassIPTransport = gopacket.NewLayerClass([]gopacket.LayerType{ - LayerTypeTCP, - LayerTypeUDP, - LayerTypeSCTP, - }) - // LayerClassIPControl contains TCP/IP control protocols. - LayerClassIPControl = gopacket.NewLayerClass([]gopacket.LayerType{ - LayerTypeICMPv4, - LayerTypeICMPv6, - }) - // LayerClassSCTPChunk contains SCTP chunk types (not the top-level SCTP - // layer). - LayerClassSCTPChunk = gopacket.NewLayerClass([]gopacket.LayerType{ - LayerTypeSCTPUnknownChunkType, - LayerTypeSCTPData, - LayerTypeSCTPInit, - LayerTypeSCTPSack, - LayerTypeSCTPHeartbeat, - LayerTypeSCTPError, - LayerTypeSCTPShutdown, - LayerTypeSCTPShutdownAck, - LayerTypeSCTPCookieEcho, - LayerTypeSCTPEmptyLayer, - LayerTypeSCTPInitAck, - LayerTypeSCTPHeartbeatAck, - LayerTypeSCTPAbort, - LayerTypeSCTPShutdownComplete, - LayerTypeSCTPCookieAck, - }) - // LayerClassIPv6Extension contains IPv6 extension headers. - LayerClassIPv6Extension = gopacket.NewLayerClass([]gopacket.LayerType{ - LayerTypeIPv6HopByHop, - LayerTypeIPv6Routing, - LayerTypeIPv6Fragment, - LayerTypeIPv6Destination, - }) - LayerClassIPSec = gopacket.NewLayerClass([]gopacket.LayerType{ - LayerTypeIPSecAH, - LayerTypeIPSecESP, - }) - // LayerClassICMPv6NDP contains ICMPv6 neighbor discovery protocol - // messages. - LayerClassICMPv6NDP = gopacket.NewLayerClass([]gopacket.LayerType{ - LayerTypeICMPv6RouterSolicitation, - LayerTypeICMPv6RouterAdvertisement, - LayerTypeICMPv6NeighborSolicitation, - LayerTypeICMPv6NeighborAdvertisement, - LayerTypeICMPv6Redirect, - }) - // LayerClassMLDv1 contains multicast listener discovery protocol - LayerClassMLDv1 = gopacket.NewLayerClass([]gopacket.LayerType{ - LayerTypeMLDv1MulticastListenerQuery, - LayerTypeMLDv1MulticastListenerReport, - LayerTypeMLDv1MulticastListenerDone, - }) - // LayerClassMLDv2 contains multicast listener discovery protocol v2 - LayerClassMLDv2 = gopacket.NewLayerClass([]gopacket.LayerType{ - LayerTypeMLDv1MulticastListenerReport, - LayerTypeMLDv1MulticastListenerDone, - LayerTypeMLDv2MulticastListenerReport, - LayerTypeMLDv1MulticastListenerQuery, - LayerTypeMLDv2MulticastListenerQuery, - }) -) diff --git a/vendor/github.com/google/gopacket/layers/lcm.go b/vendor/github.com/google/gopacket/layers/lcm.go deleted file mode 100644 index 58a4b82890..0000000000 --- a/vendor/github.com/google/gopacket/layers/lcm.go +++ /dev/null @@ -1,218 +0,0 @@ -// Copyright 2018 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - - "github.com/google/gopacket" -) - -const ( - // LCMShortHeaderMagic is the LCM small message header magic number - LCMShortHeaderMagic uint32 = 0x4c433032 - // LCMFragmentedHeaderMagic is the LCM fragmented message header magic number - LCMFragmentedHeaderMagic uint32 = 0x4c433033 -) - -// LCM (Lightweight Communications and Marshalling) is a set of libraries and -// tools for message passing and data marshalling, targeted at real-time systems -// where high-bandwidth and low latency are critical. It provides a -// publish/subscribe message passing model and automatic -// marshalling/unmarshalling code generation with bindings for applications in a -// variety of programming languages. -// -// References -// https://lcm-proj.github.io/ -// https://github.com/lcm-proj/lcm -type LCM struct { - // Common (short & fragmented header) fields - Magic uint32 - SequenceNumber uint32 - // Fragmented header only fields - PayloadSize uint32 - FragmentOffset uint32 - FragmentNumber uint16 - TotalFragments uint16 - // Common field - ChannelName string - // Gopacket helper fields - Fragmented bool - fingerprint LCMFingerprint - contents []byte - payload []byte -} - -// LCMFingerprint is the type of a LCM fingerprint. -type LCMFingerprint uint64 - -var ( - // lcmLayerTypes contains a map of all LCM fingerprints that we support and - // their LayerType - lcmLayerTypes = map[LCMFingerprint]gopacket.LayerType{} - layerTypeIndex = 1001 -) - -// RegisterLCMLayerType allows users to register decoders for the underlying -// LCM payload. This is done based on the fingerprint that every LCM message -// contains and which identifies it uniquely. If num is not the zero value it -// will be used when registering with RegisterLayerType towards gopacket, -// otherwise an incremental value starting from 1001 will be used. -func RegisterLCMLayerType(num int, name string, fingerprint LCMFingerprint, - decoder gopacket.Decoder) gopacket.LayerType { - metadata := gopacket.LayerTypeMetadata{Name: name, Decoder: decoder} - - if num == 0 { - num = layerTypeIndex - layerTypeIndex++ - } - - lcmLayerTypes[fingerprint] = gopacket.RegisterLayerType(num, metadata) - - return lcmLayerTypes[fingerprint] -} - -// SupportedLCMFingerprints returns a slice of all LCM fingerprints that has -// been registered so far. -func SupportedLCMFingerprints() []LCMFingerprint { - fingerprints := make([]LCMFingerprint, 0, len(lcmLayerTypes)) - for fp := range lcmLayerTypes { - fingerprints = append(fingerprints, fp) - } - return fingerprints -} - -// GetLCMLayerType returns the underlying LCM message's LayerType. -// This LayerType has to be registered by using RegisterLCMLayerType. -func GetLCMLayerType(fingerprint LCMFingerprint) gopacket.LayerType { - layerType, ok := lcmLayerTypes[fingerprint] - if !ok { - return gopacket.LayerTypePayload - } - - return layerType -} - -func decodeLCM(data []byte, p gopacket.PacketBuilder) error { - lcm := &LCM{} - - err := lcm.DecodeFromBytes(data, p) - if err != nil { - return err - } - - p.AddLayer(lcm) - p.SetApplicationLayer(lcm) - - return p.NextDecoder(lcm.NextLayerType()) -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (lcm *LCM) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 8 { - df.SetTruncated() - return errors.New("LCM < 8 bytes") - } - offset := 0 - - lcm.Magic = binary.BigEndian.Uint32(data[offset:4]) - offset += 4 - - if lcm.Magic != LCMShortHeaderMagic && lcm.Magic != LCMFragmentedHeaderMagic { - return fmt.Errorf("Received LCM header magic %v does not match know "+ - "LCM magic numbers. Dropping packet.", lcm.Magic) - } - - lcm.SequenceNumber = binary.BigEndian.Uint32(data[offset:8]) - offset += 4 - - if lcm.Magic == LCMFragmentedHeaderMagic { - lcm.Fragmented = true - - lcm.PayloadSize = binary.BigEndian.Uint32(data[offset : offset+4]) - offset += 4 - - lcm.FragmentOffset = binary.BigEndian.Uint32(data[offset : offset+4]) - offset += 4 - - lcm.FragmentNumber = binary.BigEndian.Uint16(data[offset : offset+2]) - offset += 2 - - lcm.TotalFragments = binary.BigEndian.Uint16(data[offset : offset+2]) - offset += 2 - } else { - lcm.Fragmented = false - } - - if !lcm.Fragmented || (lcm.Fragmented && lcm.FragmentNumber == 0) { - buffer := make([]byte, 0) - for _, b := range data[offset:] { - offset++ - - if b == 0 { - break - } - - buffer = append(buffer, b) - } - - lcm.ChannelName = string(buffer) - } - - lcm.fingerprint = LCMFingerprint( - binary.BigEndian.Uint64(data[offset : offset+8])) - - lcm.contents = data[:offset] - lcm.payload = data[offset:] - - return nil -} - -// CanDecode returns a set of layers that LCM objects can decode. -// As LCM objects can only decode the LCM layer, we just return that layer. -func (lcm LCM) CanDecode() gopacket.LayerClass { - return LayerTypeLCM -} - -// NextLayerType specifies the LCM payload layer type following this header. -// As LCM packets are serialized structs with uniq fingerprints for each uniq -// combination of data types, lookup of correct layer type is based on that -// fingerprint. -func (lcm LCM) NextLayerType() gopacket.LayerType { - if !lcm.Fragmented || (lcm.Fragmented && lcm.FragmentNumber == 0) { - return GetLCMLayerType(lcm.fingerprint) - } - - return gopacket.LayerTypeFragment -} - -// LayerType returns LayerTypeLCM -func (lcm LCM) LayerType() gopacket.LayerType { - return LayerTypeLCM -} - -// LayerContents returns the contents of the LCM header. -func (lcm LCM) LayerContents() []byte { - return lcm.contents -} - -// LayerPayload returns the payload following this LCM header. -func (lcm LCM) LayerPayload() []byte { - return lcm.payload -} - -// Payload returns the payload following this LCM header. -func (lcm LCM) Payload() []byte { - return lcm.LayerPayload() -} - -// Fingerprint returns the LCM fingerprint of the underlying message. -func (lcm LCM) Fingerprint() LCMFingerprint { - return lcm.fingerprint -} diff --git a/vendor/github.com/google/gopacket/layers/linux_sll.go b/vendor/github.com/google/gopacket/layers/linux_sll.go deleted file mode 100644 index 85a4f8bdd0..0000000000 --- a/vendor/github.com/google/gopacket/layers/linux_sll.go +++ /dev/null @@ -1,98 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - "net" - - "github.com/google/gopacket" -) - -type LinuxSLLPacketType uint16 - -const ( - LinuxSLLPacketTypeHost LinuxSLLPacketType = 0 // To us - LinuxSLLPacketTypeBroadcast LinuxSLLPacketType = 1 // To all - LinuxSLLPacketTypeMulticast LinuxSLLPacketType = 2 // To group - LinuxSLLPacketTypeOtherhost LinuxSLLPacketType = 3 // To someone else - LinuxSLLPacketTypeOutgoing LinuxSLLPacketType = 4 // Outgoing of any type - // These ones are invisible by user level - LinuxSLLPacketTypeLoopback LinuxSLLPacketType = 5 // MC/BRD frame looped back - LinuxSLLPacketTypeFastroute LinuxSLLPacketType = 6 // Fastrouted frame -) - -func (l LinuxSLLPacketType) String() string { - switch l { - case LinuxSLLPacketTypeHost: - return "host" - case LinuxSLLPacketTypeBroadcast: - return "broadcast" - case LinuxSLLPacketTypeMulticast: - return "multicast" - case LinuxSLLPacketTypeOtherhost: - return "otherhost" - case LinuxSLLPacketTypeOutgoing: - return "outgoing" - case LinuxSLLPacketTypeLoopback: - return "loopback" - case LinuxSLLPacketTypeFastroute: - return "fastroute" - } - return fmt.Sprintf("Unknown(%d)", int(l)) -} - -type LinuxSLL struct { - BaseLayer - PacketType LinuxSLLPacketType - AddrLen uint16 - Addr net.HardwareAddr - EthernetType EthernetType - AddrType uint16 -} - -// LayerType returns LayerTypeLinuxSLL. -func (sll *LinuxSLL) LayerType() gopacket.LayerType { return LayerTypeLinuxSLL } - -func (sll *LinuxSLL) CanDecode() gopacket.LayerClass { - return LayerTypeLinuxSLL -} - -func (sll *LinuxSLL) LinkFlow() gopacket.Flow { - return gopacket.NewFlow(EndpointMAC, sll.Addr, nil) -} - -func (sll *LinuxSLL) NextLayerType() gopacket.LayerType { - return sll.EthernetType.LayerType() -} - -func (sll *LinuxSLL) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 16 { - return errors.New("Linux SLL packet too small") - } - sll.PacketType = LinuxSLLPacketType(binary.BigEndian.Uint16(data[0:2])) - sll.AddrType = binary.BigEndian.Uint16(data[2:4]) - sll.AddrLen = binary.BigEndian.Uint16(data[4:6]) - - sll.Addr = net.HardwareAddr(data[6 : sll.AddrLen+6]) - sll.EthernetType = EthernetType(binary.BigEndian.Uint16(data[14:16])) - sll.BaseLayer = BaseLayer{data[:16], data[16:]} - - return nil -} - -func decodeLinuxSLL(data []byte, p gopacket.PacketBuilder) error { - sll := &LinuxSLL{} - if err := sll.DecodeFromBytes(data, p); err != nil { - return err - } - p.AddLayer(sll) - p.SetLinkLayer(sll) - return p.NextDecoder(sll.EthernetType) -} diff --git a/vendor/github.com/google/gopacket/layers/llc.go b/vendor/github.com/google/gopacket/layers/llc.go deleted file mode 100644 index cad6803671..0000000000 --- a/vendor/github.com/google/gopacket/layers/llc.go +++ /dev/null @@ -1,193 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - - "github.com/google/gopacket" -) - -// LLC is the layer used for 802.2 Logical Link Control headers. -// See http://standards.ieee.org/getieee802/download/802.2-1998.pdf -type LLC struct { - BaseLayer - DSAP uint8 - IG bool // true means group, false means individual - SSAP uint8 - CR bool // true means response, false means command - Control uint16 -} - -// LayerType returns gopacket.LayerTypeLLC. -func (l *LLC) LayerType() gopacket.LayerType { return LayerTypeLLC } - -// DecodeFromBytes decodes the given bytes into this layer. -func (l *LLC) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 3 { - return errors.New("LLC header too small") - } - l.DSAP = data[0] & 0xFE - l.IG = data[0]&0x1 != 0 - l.SSAP = data[1] & 0xFE - l.CR = data[1]&0x1 != 0 - l.Control = uint16(data[2]) - - if l.Control&0x1 == 0 || l.Control&0x3 == 0x1 { - if len(data) < 4 { - return errors.New("LLC header too small") - } - l.Control = l.Control<<8 | uint16(data[3]) - l.Contents = data[:4] - l.Payload = data[4:] - } else { - l.Contents = data[:3] - l.Payload = data[3:] - } - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (l *LLC) CanDecode() gopacket.LayerClass { - return LayerTypeLLC -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (l *LLC) NextLayerType() gopacket.LayerType { - switch { - case l.DSAP == 0xAA && l.SSAP == 0xAA: - return LayerTypeSNAP - case l.DSAP == 0x42 && l.SSAP == 0x42: - return LayerTypeSTP - } - return gopacket.LayerTypeZero // Not implemented -} - -// SNAP is used inside LLC. See -// http://standards.ieee.org/getieee802/download/802-2001.pdf. -// From http://en.wikipedia.org/wiki/Subnetwork_Access_Protocol: -// "[T]he Subnetwork Access Protocol (SNAP) is a mechanism for multiplexing, -// on networks using IEEE 802.2 LLC, more protocols than can be distinguished -// by the 8-bit 802.2 Service Access Point (SAP) fields." -type SNAP struct { - BaseLayer - OrganizationalCode []byte - Type EthernetType -} - -// LayerType returns gopacket.LayerTypeSNAP. -func (s *SNAP) LayerType() gopacket.LayerType { return LayerTypeSNAP } - -// DecodeFromBytes decodes the given bytes into this layer. -func (s *SNAP) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 5 { - return errors.New("SNAP header too small") - } - s.OrganizationalCode = data[:3] - s.Type = EthernetType(binary.BigEndian.Uint16(data[3:5])) - s.BaseLayer = BaseLayer{data[:5], data[5:]} - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (s *SNAP) CanDecode() gopacket.LayerClass { - return LayerTypeSNAP -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (s *SNAP) NextLayerType() gopacket.LayerType { - // See BUG(gconnel) in decodeSNAP - return s.Type.LayerType() -} - -func decodeLLC(data []byte, p gopacket.PacketBuilder) error { - l := &LLC{} - err := l.DecodeFromBytes(data, p) - if err != nil { - return err - } - p.AddLayer(l) - return p.NextDecoder(l.NextLayerType()) -} - -func decodeSNAP(data []byte, p gopacket.PacketBuilder) error { - s := &SNAP{} - err := s.DecodeFromBytes(data, p) - if err != nil { - return err - } - p.AddLayer(s) - // BUG(gconnell): When decoding SNAP, we treat the SNAP type as an Ethernet - // type. This may not actually be an ethernet type in all cases, - // depending on the organizational code. Right now, we don't check. - return p.NextDecoder(s.Type) -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (l *LLC) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - var igFlag, crFlag byte - var length int - - if l.Control&0xFF00 != 0 { - length = 4 - } else { - length = 3 - } - - if l.DSAP&0x1 != 0 { - return errors.New("DSAP value invalid, should not include IG flag bit") - } - - if l.SSAP&0x1 != 0 { - return errors.New("SSAP value invalid, should not include CR flag bit") - } - - if buf, err := b.PrependBytes(length); err != nil { - return err - } else { - igFlag = 0 - if l.IG { - igFlag = 0x1 - } - - crFlag = 0 - if l.CR { - crFlag = 0x1 - } - - buf[0] = l.DSAP + igFlag - buf[1] = l.SSAP + crFlag - - if length == 4 { - buf[2] = uint8(l.Control >> 8) - buf[3] = uint8(l.Control) - } else { - buf[2] = uint8(l.Control) - } - } - - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (s *SNAP) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - if buf, err := b.PrependBytes(5); err != nil { - return err - } else { - buf[0] = s.OrganizationalCode[0] - buf[1] = s.OrganizationalCode[1] - buf[2] = s.OrganizationalCode[2] - binary.BigEndian.PutUint16(buf[3:5], uint16(s.Type)) - } - - return nil -} diff --git a/vendor/github.com/google/gopacket/layers/lldp.go b/vendor/github.com/google/gopacket/layers/lldp.go deleted file mode 100644 index 16a5bbadad..0000000000 --- a/vendor/github.com/google/gopacket/layers/lldp.go +++ /dev/null @@ -1,1603 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - - "github.com/google/gopacket" -) - -// LLDPTLVType is the type of each TLV value in a LinkLayerDiscovery packet. -type LLDPTLVType byte - -const ( - LLDPTLVEnd LLDPTLVType = 0 - LLDPTLVChassisID LLDPTLVType = 1 - LLDPTLVPortID LLDPTLVType = 2 - LLDPTLVTTL LLDPTLVType = 3 - LLDPTLVPortDescription LLDPTLVType = 4 - LLDPTLVSysName LLDPTLVType = 5 - LLDPTLVSysDescription LLDPTLVType = 6 - LLDPTLVSysCapabilities LLDPTLVType = 7 - LLDPTLVMgmtAddress LLDPTLVType = 8 - LLDPTLVOrgSpecific LLDPTLVType = 127 -) - -// LinkLayerDiscoveryValue is a TLV value inside a LinkLayerDiscovery packet layer. -type LinkLayerDiscoveryValue struct { - Type LLDPTLVType - Length uint16 - Value []byte -} - -func (c *LinkLayerDiscoveryValue) len() int { - return 0 -} - -// LLDPChassisIDSubType specifies the value type for a single LLDPChassisID.ID -type LLDPChassisIDSubType byte - -// LLDP Chassis Types -const ( - LLDPChassisIDSubTypeReserved LLDPChassisIDSubType = 0 - LLDPChassisIDSubTypeChassisComp LLDPChassisIDSubType = 1 - LLDPChassisIDSubtypeIfaceAlias LLDPChassisIDSubType = 2 - LLDPChassisIDSubTypePortComp LLDPChassisIDSubType = 3 - LLDPChassisIDSubTypeMACAddr LLDPChassisIDSubType = 4 - LLDPChassisIDSubTypeNetworkAddr LLDPChassisIDSubType = 5 - LLDPChassisIDSubtypeIfaceName LLDPChassisIDSubType = 6 - LLDPChassisIDSubTypeLocal LLDPChassisIDSubType = 7 -) - -type LLDPChassisID struct { - Subtype LLDPChassisIDSubType - ID []byte -} - -func (c *LLDPChassisID) serialize() []byte { - - var buf = make([]byte, c.serializedLen()) - idLen := uint16(LLDPTLVChassisID)<<9 | uint16(len(c.ID)+1) //id should take 7 bits, length should take 9 bits, +1 for subtype - binary.BigEndian.PutUint16(buf[0:2], idLen) - buf[2] = byte(c.Subtype) - copy(buf[3:], c.ID) - return buf -} - -func (c *LLDPChassisID) serializedLen() int { - return len(c.ID) + 3 // +2 for id and length, +1 for subtype -} - -// LLDPPortIDSubType specifies the value type for a single LLDPPortID.ID -type LLDPPortIDSubType byte - -// LLDP PortID types -const ( - LLDPPortIDSubtypeReserved LLDPPortIDSubType = 0 - LLDPPortIDSubtypeIfaceAlias LLDPPortIDSubType = 1 - LLDPPortIDSubtypePortComp LLDPPortIDSubType = 2 - LLDPPortIDSubtypeMACAddr LLDPPortIDSubType = 3 - LLDPPortIDSubtypeNetworkAddr LLDPPortIDSubType = 4 - LLDPPortIDSubtypeIfaceName LLDPPortIDSubType = 5 - LLDPPortIDSubtypeAgentCircuitID LLDPPortIDSubType = 6 - LLDPPortIDSubtypeLocal LLDPPortIDSubType = 7 -) - -type LLDPPortID struct { - Subtype LLDPPortIDSubType - ID []byte -} - -func (c *LLDPPortID) serialize() []byte { - - var buf = make([]byte, c.serializedLen()) - idLen := uint16(LLDPTLVPortID)<<9 | uint16(len(c.ID)+1) //id should take 7 bits, length should take 9 bits, +1 for subtype - binary.BigEndian.PutUint16(buf[0:2], idLen) - buf[2] = byte(c.Subtype) - copy(buf[3:], c.ID) - return buf -} - -func (c *LLDPPortID) serializedLen() int { - return len(c.ID) + 3 // +2 for id and length, +1 for subtype -} - -// LinkLayerDiscovery is a packet layer containing the LinkLayer Discovery Protocol. -// See http:http://standards.ieee.org/getieee802/download/802.1AB-2009.pdf -// ChassisID, PortID and TTL are mandatory TLV's. Other values can be decoded -// with DecodeValues() -type LinkLayerDiscovery struct { - BaseLayer - ChassisID LLDPChassisID - PortID LLDPPortID - TTL uint16 - Values []LinkLayerDiscoveryValue -} - -type IEEEOUI uint32 - -// http://standards.ieee.org/develop/regauth/oui/oui.txt -const ( - IEEEOUI8021 IEEEOUI = 0x0080c2 - IEEEOUI8023 IEEEOUI = 0x00120f - IEEEOUI80211 IEEEOUI = 0x000fac - IEEEOUI8021Qbg IEEEOUI = 0x0013BF - IEEEOUICisco2 IEEEOUI = 0x000142 - IEEEOUIMedia IEEEOUI = 0x0012bb // TR-41 - IEEEOUIProfinet IEEEOUI = 0x000ecf - IEEEOUIDCBX IEEEOUI = 0x001b21 -) - -// LLDPOrgSpecificTLV is an Organisation-specific TLV -type LLDPOrgSpecificTLV struct { - OUI IEEEOUI - SubType uint8 - Info []byte -} - -// LLDPCapabilities Types -const ( - LLDPCapsOther uint16 = 1 << 0 - LLDPCapsRepeater uint16 = 1 << 1 - LLDPCapsBridge uint16 = 1 << 2 - LLDPCapsWLANAP uint16 = 1 << 3 - LLDPCapsRouter uint16 = 1 << 4 - LLDPCapsPhone uint16 = 1 << 5 - LLDPCapsDocSis uint16 = 1 << 6 - LLDPCapsStationOnly uint16 = 1 << 7 - LLDPCapsCVLAN uint16 = 1 << 8 - LLDPCapsSVLAN uint16 = 1 << 9 - LLDPCapsTmpr uint16 = 1 << 10 -) - -// LLDPCapabilities represents the capabilities of a device -type LLDPCapabilities struct { - Other bool - Repeater bool - Bridge bool - WLANAP bool - Router bool - Phone bool - DocSis bool - StationOnly bool - CVLAN bool - SVLAN bool - TMPR bool -} - -type LLDPSysCapabilities struct { - SystemCap LLDPCapabilities - EnabledCap LLDPCapabilities -} - -type IANAAddressFamily byte - -// LLDP Management Address Subtypes -// http://www.iana.org/assignments/address-family-numbers/address-family-numbers.xml -const ( - IANAAddressFamilyReserved IANAAddressFamily = 0 - IANAAddressFamilyIPV4 IANAAddressFamily = 1 - IANAAddressFamilyIPV6 IANAAddressFamily = 2 - IANAAddressFamilyNSAP IANAAddressFamily = 3 - IANAAddressFamilyHDLC IANAAddressFamily = 4 - IANAAddressFamilyBBN1822 IANAAddressFamily = 5 - IANAAddressFamily802 IANAAddressFamily = 6 - IANAAddressFamilyE163 IANAAddressFamily = 7 - IANAAddressFamilyE164 IANAAddressFamily = 8 - IANAAddressFamilyF69 IANAAddressFamily = 9 - IANAAddressFamilyX121 IANAAddressFamily = 10 - IANAAddressFamilyIPX IANAAddressFamily = 11 - IANAAddressFamilyAtalk IANAAddressFamily = 12 - IANAAddressFamilyDecnet IANAAddressFamily = 13 - IANAAddressFamilyBanyan IANAAddressFamily = 14 - IANAAddressFamilyE164NSAP IANAAddressFamily = 15 - IANAAddressFamilyDNS IANAAddressFamily = 16 - IANAAddressFamilyDistname IANAAddressFamily = 17 - IANAAddressFamilyASNumber IANAAddressFamily = 18 - IANAAddressFamilyXTPIPV4 IANAAddressFamily = 19 - IANAAddressFamilyXTPIPV6 IANAAddressFamily = 20 - IANAAddressFamilyXTP IANAAddressFamily = 21 - IANAAddressFamilyFcWWPN IANAAddressFamily = 22 - IANAAddressFamilyFcWWNN IANAAddressFamily = 23 - IANAAddressFamilyGWID IANAAddressFamily = 24 - IANAAddressFamilyL2VPN IANAAddressFamily = 25 -) - -type LLDPInterfaceSubtype byte - -// LLDP Interface Subtypes -const ( - LLDPInterfaceSubtypeUnknown LLDPInterfaceSubtype = 1 - LLDPInterfaceSubtypeifIndex LLDPInterfaceSubtype = 2 - LLDPInterfaceSubtypeSysPort LLDPInterfaceSubtype = 3 -) - -type LLDPMgmtAddress struct { - Subtype IANAAddressFamily - Address []byte - InterfaceSubtype LLDPInterfaceSubtype - InterfaceNumber uint32 - OID string -} - -// LinkLayerDiscoveryInfo represents the decoded details for a set of LinkLayerDiscoveryValues -// Organisation-specific TLV's can be decoded using the various Decode() methods -type LinkLayerDiscoveryInfo struct { - BaseLayer - PortDescription string - SysName string - SysDescription string - SysCapabilities LLDPSysCapabilities - MgmtAddress LLDPMgmtAddress - OrgTLVs []LLDPOrgSpecificTLV // Private TLVs - Unknown []LinkLayerDiscoveryValue // undecoded TLVs -} - -/// IEEE 802.1 TLV Subtypes -const ( - LLDP8021SubtypePortVLANID uint8 = 1 - LLDP8021SubtypeProtocolVLANID uint8 = 2 - LLDP8021SubtypeVLANName uint8 = 3 - LLDP8021SubtypeProtocolIdentity uint8 = 4 - LLDP8021SubtypeVDIUsageDigest uint8 = 5 - LLDP8021SubtypeManagementVID uint8 = 6 - LLDP8021SubtypeLinkAggregation uint8 = 7 -) - -// VLAN Port Protocol ID options -const ( - LLDPProtocolVLANIDCapability byte = 1 << 1 - LLDPProtocolVLANIDStatus byte = 1 << 2 -) - -type PortProtocolVLANID struct { - Supported bool - Enabled bool - ID uint16 -} - -type VLANName struct { - ID uint16 - Name string -} - -type ProtocolIdentity []byte - -// LACP options -const ( - LLDPAggregationCapability byte = 1 << 0 - LLDPAggregationStatus byte = 1 << 1 -) - -// IEEE 802 Link Aggregation parameters -type LLDPLinkAggregation struct { - Supported bool - Enabled bool - PortID uint32 -} - -// LLDPInfo8021 represents the information carried in 802.1 Org-specific TLVs -type LLDPInfo8021 struct { - PVID uint16 - PPVIDs []PortProtocolVLANID - VLANNames []VLANName - ProtocolIdentities []ProtocolIdentity - VIDUsageDigest uint32 - ManagementVID uint16 - LinkAggregation LLDPLinkAggregation -} - -// IEEE 802.3 TLV Subtypes -const ( - LLDP8023SubtypeMACPHY uint8 = 1 - LLDP8023SubtypeMDIPower uint8 = 2 - LLDP8023SubtypeLinkAggregation uint8 = 3 - LLDP8023SubtypeMTU uint8 = 4 -) - -// MACPHY options -const ( - LLDPMACPHYCapability byte = 1 << 0 - LLDPMACPHYStatus byte = 1 << 1 -) - -// From IANA-MAU-MIB (introduced by RFC 4836) - dot3MauType -const ( - LLDPMAUTypeUnknown uint16 = 0 - LLDPMAUTypeAUI uint16 = 1 - LLDPMAUType10Base5 uint16 = 2 - LLDPMAUTypeFOIRL uint16 = 3 - LLDPMAUType10Base2 uint16 = 4 - LLDPMAUType10BaseT uint16 = 5 - LLDPMAUType10BaseFP uint16 = 6 - LLDPMAUType10BaseFB uint16 = 7 - LLDPMAUType10BaseFL uint16 = 8 - LLDPMAUType10BROAD36 uint16 = 9 - LLDPMAUType10BaseT_HD uint16 = 10 - LLDPMAUType10BaseT_FD uint16 = 11 - LLDPMAUType10BaseFL_HD uint16 = 12 - LLDPMAUType10BaseFL_FD uint16 = 13 - LLDPMAUType100BaseT4 uint16 = 14 - LLDPMAUType100BaseTX_HD uint16 = 15 - LLDPMAUType100BaseTX_FD uint16 = 16 - LLDPMAUType100BaseFX_HD uint16 = 17 - LLDPMAUType100BaseFX_FD uint16 = 18 - LLDPMAUType100BaseT2_HD uint16 = 19 - LLDPMAUType100BaseT2_FD uint16 = 20 - LLDPMAUType1000BaseX_HD uint16 = 21 - LLDPMAUType1000BaseX_FD uint16 = 22 - LLDPMAUType1000BaseLX_HD uint16 = 23 - LLDPMAUType1000BaseLX_FD uint16 = 24 - LLDPMAUType1000BaseSX_HD uint16 = 25 - LLDPMAUType1000BaseSX_FD uint16 = 26 - LLDPMAUType1000BaseCX_HD uint16 = 27 - LLDPMAUType1000BaseCX_FD uint16 = 28 - LLDPMAUType1000BaseT_HD uint16 = 29 - LLDPMAUType1000BaseT_FD uint16 = 30 - LLDPMAUType10GBaseX uint16 = 31 - LLDPMAUType10GBaseLX4 uint16 = 32 - LLDPMAUType10GBaseR uint16 = 33 - LLDPMAUType10GBaseER uint16 = 34 - LLDPMAUType10GBaseLR uint16 = 35 - LLDPMAUType10GBaseSR uint16 = 36 - LLDPMAUType10GBaseW uint16 = 37 - LLDPMAUType10GBaseEW uint16 = 38 - LLDPMAUType10GBaseLW uint16 = 39 - LLDPMAUType10GBaseSW uint16 = 40 - LLDPMAUType10GBaseCX4 uint16 = 41 - LLDPMAUType2BaseTL uint16 = 42 - LLDPMAUType10PASS_TS uint16 = 43 - LLDPMAUType100BaseBX10D uint16 = 44 - LLDPMAUType100BaseBX10U uint16 = 45 - LLDPMAUType100BaseLX10 uint16 = 46 - LLDPMAUType1000BaseBX10D uint16 = 47 - LLDPMAUType1000BaseBX10U uint16 = 48 - LLDPMAUType1000BaseLX10 uint16 = 49 - LLDPMAUType1000BasePX10D uint16 = 50 - LLDPMAUType1000BasePX10U uint16 = 51 - LLDPMAUType1000BasePX20D uint16 = 52 - LLDPMAUType1000BasePX20U uint16 = 53 - LLDPMAUType10GBaseT uint16 = 54 - LLDPMAUType10GBaseLRM uint16 = 55 - LLDPMAUType1000BaseKX uint16 = 56 - LLDPMAUType10GBaseKX4 uint16 = 57 - LLDPMAUType10GBaseKR uint16 = 58 - LLDPMAUType10_1GBasePRX_D1 uint16 = 59 - LLDPMAUType10_1GBasePRX_D2 uint16 = 60 - LLDPMAUType10_1GBasePRX_D3 uint16 = 61 - LLDPMAUType10_1GBasePRX_U1 uint16 = 62 - LLDPMAUType10_1GBasePRX_U2 uint16 = 63 - LLDPMAUType10_1GBasePRX_U3 uint16 = 64 - LLDPMAUType10GBasePR_D1 uint16 = 65 - LLDPMAUType10GBasePR_D2 uint16 = 66 - LLDPMAUType10GBasePR_D3 uint16 = 67 - LLDPMAUType10GBasePR_U1 uint16 = 68 - LLDPMAUType10GBasePR_U3 uint16 = 69 -) - -// From RFC 3636 - ifMauAutoNegCapAdvertisedBits -const ( - LLDPMAUPMDOther uint16 = 1 << 15 - LLDPMAUPMD10BaseT uint16 = 1 << 14 - LLDPMAUPMD10BaseT_FD uint16 = 1 << 13 - LLDPMAUPMD100BaseT4 uint16 = 1 << 12 - LLDPMAUPMD100BaseTX uint16 = 1 << 11 - LLDPMAUPMD100BaseTX_FD uint16 = 1 << 10 - LLDPMAUPMD100BaseT2 uint16 = 1 << 9 - LLDPMAUPMD100BaseT2_FD uint16 = 1 << 8 - LLDPMAUPMDFDXPAUSE uint16 = 1 << 7 - LLDPMAUPMDFDXAPAUSE uint16 = 1 << 6 - LLDPMAUPMDFDXSPAUSE uint16 = 1 << 5 - LLDPMAUPMDFDXBPAUSE uint16 = 1 << 4 - LLDPMAUPMD1000BaseX uint16 = 1 << 3 - LLDPMAUPMD1000BaseX_FD uint16 = 1 << 2 - LLDPMAUPMD1000BaseT uint16 = 1 << 1 - LLDPMAUPMD1000BaseT_FD uint16 = 1 << 0 -) - -// Inverted ifMauAutoNegCapAdvertisedBits if required -// (Some manufacturers misinterpreted the spec - -// see https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1455) -const ( - LLDPMAUPMDOtherInv uint16 = 1 << 0 - LLDPMAUPMD10BaseTInv uint16 = 1 << 1 - LLDPMAUPMD10BaseT_FDInv uint16 = 1 << 2 - LLDPMAUPMD100BaseT4Inv uint16 = 1 << 3 - LLDPMAUPMD100BaseTXInv uint16 = 1 << 4 - LLDPMAUPMD100BaseTX_FDInv uint16 = 1 << 5 - LLDPMAUPMD100BaseT2Inv uint16 = 1 << 6 - LLDPMAUPMD100BaseT2_FDInv uint16 = 1 << 7 - LLDPMAUPMDFDXPAUSEInv uint16 = 1 << 8 - LLDPMAUPMDFDXAPAUSEInv uint16 = 1 << 9 - LLDPMAUPMDFDXSPAUSEInv uint16 = 1 << 10 - LLDPMAUPMDFDXBPAUSEInv uint16 = 1 << 11 - LLDPMAUPMD1000BaseXInv uint16 = 1 << 12 - LLDPMAUPMD1000BaseX_FDInv uint16 = 1 << 13 - LLDPMAUPMD1000BaseTInv uint16 = 1 << 14 - LLDPMAUPMD1000BaseT_FDInv uint16 = 1 << 15 -) - -type LLDPMACPHYConfigStatus struct { - AutoNegSupported bool - AutoNegEnabled bool - AutoNegCapability uint16 - MAUType uint16 -} - -// MDI Power options -const ( - LLDPMDIPowerPortClass byte = 1 << 0 - LLDPMDIPowerCapability byte = 1 << 1 - LLDPMDIPowerStatus byte = 1 << 2 - LLDPMDIPowerPairsAbility byte = 1 << 3 -) - -type LLDPPowerType byte - -type LLDPPowerSource byte - -type LLDPPowerPriority byte - -const ( - LLDPPowerPriorityUnknown LLDPPowerPriority = 0 - LLDPPowerPriorityMedium LLDPPowerPriority = 1 - LLDPPowerPriorityHigh LLDPPowerPriority = 2 - LLDPPowerPriorityLow LLDPPowerPriority = 3 -) - -type LLDPPowerViaMDI8023 struct { - PortClassPSE bool // false = PD - PSESupported bool - PSEEnabled bool - PSEPairsAbility bool - PSEPowerPair uint8 - PSEClass uint8 - Type LLDPPowerType - Source LLDPPowerSource - Priority LLDPPowerPriority - Requested uint16 // 1-510 Watts - Allocated uint16 // 1-510 Watts -} - -// LLDPInfo8023 represents the information carried in 802.3 Org-specific TLVs -type LLDPInfo8023 struct { - MACPHYConfigStatus LLDPMACPHYConfigStatus - PowerViaMDI LLDPPowerViaMDI8023 - LinkAggregation LLDPLinkAggregation - MTU uint16 -} - -// IEEE 802.1Qbg TLV Subtypes -const ( - LLDP8021QbgEVB uint8 = 0 - LLDP8021QbgCDCP uint8 = 1 - LLDP8021QbgVDP uint8 = 2 - LLDP8021QbgEVB22 uint8 = 13 -) - -// LLDPEVBCapabilities Types -const ( - LLDPEVBCapsSTD uint16 = 1 << 7 - LLDPEVBCapsRR uint16 = 1 << 6 - LLDPEVBCapsRTE uint16 = 1 << 2 - LLDPEVBCapsECP uint16 = 1 << 1 - LLDPEVBCapsVDP uint16 = 1 << 0 -) - -// LLDPEVBCapabilities represents the EVB capabilities of a device -type LLDPEVBCapabilities struct { - StandardBridging bool - ReflectiveRelay bool - RetransmissionTimerExponent bool - EdgeControlProtocol bool - VSIDiscoveryProtocol bool -} - -type LLDPEVBSettings struct { - Supported LLDPEVBCapabilities - Enabled LLDPEVBCapabilities - SupportedVSIs uint16 - ConfiguredVSIs uint16 - RTEExponent uint8 -} - -// LLDPInfo8021Qbg represents the information carried in 802.1Qbg Org-specific TLVs -type LLDPInfo8021Qbg struct { - EVBSettings LLDPEVBSettings -} - -type LLDPMediaSubtype uint8 - -// Media TLV Subtypes -const ( - LLDPMediaTypeCapabilities LLDPMediaSubtype = 1 - LLDPMediaTypeNetwork LLDPMediaSubtype = 2 - LLDPMediaTypeLocation LLDPMediaSubtype = 3 - LLDPMediaTypePower LLDPMediaSubtype = 4 - LLDPMediaTypeHardware LLDPMediaSubtype = 5 - LLDPMediaTypeFirmware LLDPMediaSubtype = 6 - LLDPMediaTypeSoftware LLDPMediaSubtype = 7 - LLDPMediaTypeSerial LLDPMediaSubtype = 8 - LLDPMediaTypeManufacturer LLDPMediaSubtype = 9 - LLDPMediaTypeModel LLDPMediaSubtype = 10 - LLDPMediaTypeAssetID LLDPMediaSubtype = 11 -) - -type LLDPMediaClass uint8 - -// Media Class Values -const ( - LLDPMediaClassUndefined LLDPMediaClass = 0 - LLDPMediaClassEndpointI LLDPMediaClass = 1 - LLDPMediaClassEndpointII LLDPMediaClass = 2 - LLDPMediaClassEndpointIII LLDPMediaClass = 3 - LLDPMediaClassNetwork LLDPMediaClass = 4 -) - -// LLDPMediaCapabilities Types -const ( - LLDPMediaCapsLLDP uint16 = 1 << 0 - LLDPMediaCapsNetwork uint16 = 1 << 1 - LLDPMediaCapsLocation uint16 = 1 << 2 - LLDPMediaCapsPowerPSE uint16 = 1 << 3 - LLDPMediaCapsPowerPD uint16 = 1 << 4 - LLDPMediaCapsInventory uint16 = 1 << 5 -) - -// LLDPMediaCapabilities represents the LLDP Media capabilities of a device -type LLDPMediaCapabilities struct { - Capabilities bool - NetworkPolicy bool - Location bool - PowerPSE bool - PowerPD bool - Inventory bool - Class LLDPMediaClass -} - -type LLDPApplicationType uint8 - -const ( - LLDPAppTypeReserved LLDPApplicationType = 0 - LLDPAppTypeVoice LLDPApplicationType = 1 - LLDPappTypeVoiceSignaling LLDPApplicationType = 2 - LLDPappTypeGuestVoice LLDPApplicationType = 3 - LLDPappTypeGuestVoiceSignaling LLDPApplicationType = 4 - LLDPappTypeSoftphoneVoice LLDPApplicationType = 5 - LLDPappTypeVideoConferencing LLDPApplicationType = 6 - LLDPappTypeStreamingVideo LLDPApplicationType = 7 - LLDPappTypeVideoSignaling LLDPApplicationType = 8 -) - -type LLDPNetworkPolicy struct { - ApplicationType LLDPApplicationType - Defined bool - Tagged bool - VLANId uint16 - L2Priority uint16 - DSCPValue uint8 -} - -type LLDPLocationFormat uint8 - -const ( - LLDPLocationFormatInvalid LLDPLocationFormat = 0 - LLDPLocationFormatCoordinate LLDPLocationFormat = 1 - LLDPLocationFormatAddress LLDPLocationFormat = 2 - LLDPLocationFormatECS LLDPLocationFormat = 3 -) - -type LLDPLocationAddressWhat uint8 - -const ( - LLDPLocationAddressWhatDHCP LLDPLocationAddressWhat = 0 - LLDPLocationAddressWhatNetwork LLDPLocationAddressWhat = 1 - LLDPLocationAddressWhatClient LLDPLocationAddressWhat = 2 -) - -type LLDPLocationAddressType uint8 - -const ( - LLDPLocationAddressTypeLanguage LLDPLocationAddressType = 0 - LLDPLocationAddressTypeNational LLDPLocationAddressType = 1 - LLDPLocationAddressTypeCounty LLDPLocationAddressType = 2 - LLDPLocationAddressTypeCity LLDPLocationAddressType = 3 - LLDPLocationAddressTypeCityDivision LLDPLocationAddressType = 4 - LLDPLocationAddressTypeNeighborhood LLDPLocationAddressType = 5 - LLDPLocationAddressTypeStreet LLDPLocationAddressType = 6 - LLDPLocationAddressTypeLeadingStreet LLDPLocationAddressType = 16 - LLDPLocationAddressTypeTrailingStreet LLDPLocationAddressType = 17 - LLDPLocationAddressTypeStreetSuffix LLDPLocationAddressType = 18 - LLDPLocationAddressTypeHouseNum LLDPLocationAddressType = 19 - LLDPLocationAddressTypeHouseSuffix LLDPLocationAddressType = 20 - LLDPLocationAddressTypeLandmark LLDPLocationAddressType = 21 - LLDPLocationAddressTypeAdditional LLDPLocationAddressType = 22 - LLDPLocationAddressTypeName LLDPLocationAddressType = 23 - LLDPLocationAddressTypePostal LLDPLocationAddressType = 24 - LLDPLocationAddressTypeBuilding LLDPLocationAddressType = 25 - LLDPLocationAddressTypeUnit LLDPLocationAddressType = 26 - LLDPLocationAddressTypeFloor LLDPLocationAddressType = 27 - LLDPLocationAddressTypeRoom LLDPLocationAddressType = 28 - LLDPLocationAddressTypePlace LLDPLocationAddressType = 29 - LLDPLocationAddressTypeScript LLDPLocationAddressType = 128 -) - -type LLDPLocationCoordinate struct { - LatitudeResolution uint8 - Latitude uint64 - LongitudeResolution uint8 - Longitude uint64 - AltitudeType uint8 - AltitudeResolution uint16 - Altitude uint32 - Datum uint8 -} - -type LLDPLocationAddressLine struct { - Type LLDPLocationAddressType - Value string -} - -type LLDPLocationAddress struct { - What LLDPLocationAddressWhat - CountryCode string - AddressLines []LLDPLocationAddressLine -} - -type LLDPLocationECS struct { - ELIN string -} - -// LLDP represents a physical location. -// Only one of the embedded types will contain values, depending on Format. -type LLDPLocation struct { - Format LLDPLocationFormat - Coordinate LLDPLocationCoordinate - Address LLDPLocationAddress - ECS LLDPLocationECS -} - -type LLDPPowerViaMDI struct { - Type LLDPPowerType - Source LLDPPowerSource - Priority LLDPPowerPriority - Value uint16 -} - -// LLDPInfoMedia represents the information carried in TR-41 Org-specific TLVs -type LLDPInfoMedia struct { - MediaCapabilities LLDPMediaCapabilities - NetworkPolicy LLDPNetworkPolicy - Location LLDPLocation - PowerViaMDI LLDPPowerViaMDI - HardwareRevision string - FirmwareRevision string - SoftwareRevision string - SerialNumber string - Manufacturer string - Model string - AssetID string -} - -type LLDPCisco2Subtype uint8 - -// Cisco2 TLV Subtypes -const ( - LLDPCisco2PowerViaMDI LLDPCisco2Subtype = 1 -) - -const ( - LLDPCiscoPSESupport uint8 = 1 << 0 - LLDPCiscoArchShared uint8 = 1 << 1 - LLDPCiscoPDSparePair uint8 = 1 << 2 - LLDPCiscoPSESparePair uint8 = 1 << 3 -) - -// LLDPInfoCisco2 represents the information carried in Cisco Org-specific TLVs -type LLDPInfoCisco2 struct { - PSEFourWirePoESupported bool - PDSparePairArchitectureShared bool - PDRequestSparePairPoEOn bool - PSESparePairPoEOn bool -} - -// Profinet Subtypes -type LLDPProfinetSubtype uint8 - -const ( - LLDPProfinetPNIODelay LLDPProfinetSubtype = 1 - LLDPProfinetPNIOPortStatus LLDPProfinetSubtype = 2 - LLDPProfinetPNIOMRPPortStatus LLDPProfinetSubtype = 4 - LLDPProfinetPNIOChassisMAC LLDPProfinetSubtype = 5 - LLDPProfinetPNIOPTCPStatus LLDPProfinetSubtype = 6 -) - -type LLDPPNIODelay struct { - RXLocal uint32 - RXRemote uint32 - TXLocal uint32 - TXRemote uint32 - CableLocal uint32 -} - -type LLDPPNIOPortStatus struct { - Class2 uint16 - Class3 uint16 -} - -type LLDPPNIOMRPPortStatus struct { - UUID []byte - Status uint16 -} - -type LLDPPNIOPTCPStatus struct { - MasterAddress []byte - SubdomainUUID []byte - IRDataUUID []byte - PeriodValid bool - PeriodLength uint32 - RedPeriodValid bool - RedPeriodBegin uint32 - OrangePeriodValid bool - OrangePeriodBegin uint32 - GreenPeriodValid bool - GreenPeriodBegin uint32 -} - -// LLDPInfoProfinet represents the information carried in Profinet Org-specific TLVs -type LLDPInfoProfinet struct { - PNIODelay LLDPPNIODelay - PNIOPortStatus LLDPPNIOPortStatus - PNIOMRPPortStatus LLDPPNIOMRPPortStatus - ChassisMAC []byte - PNIOPTCPStatus LLDPPNIOPTCPStatus -} - -// LayerType returns gopacket.LayerTypeLinkLayerDiscovery. -func (c *LinkLayerDiscovery) LayerType() gopacket.LayerType { - return LayerTypeLinkLayerDiscovery -} - -// SerializeTo serializes LLDP packet to bytes and writes on SerializeBuffer. -func (c *LinkLayerDiscovery) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - chassIDLen := c.ChassisID.serializedLen() - portIDLen := c.PortID.serializedLen() - vb, err := b.AppendBytes(chassIDLen + portIDLen + 4) // +4 for TTL - if err != nil { - return err - } - copy(vb[:chassIDLen], c.ChassisID.serialize()) - copy(vb[chassIDLen:], c.PortID.serialize()) - ttlIDLen := uint16(LLDPTLVTTL)<<9 | uint16(2) - binary.BigEndian.PutUint16(vb[chassIDLen+portIDLen:], ttlIDLen) - binary.BigEndian.PutUint16(vb[chassIDLen+portIDLen+2:], c.TTL) - - for _, v := range c.Values { - vb, err := b.AppendBytes(int(v.Length) + 2) // +2 for TLV type and length; 1 byte for subtype is included in v.Value - if err != nil { - return err - } - idLen := ((uint16(v.Type) << 9) | v.Length) - binary.BigEndian.PutUint16(vb[0:2], idLen) - copy(vb[2:], v.Value) - } - - vb, err = b.AppendBytes(2) // End Tlv, 2 bytes - if err != nil { - return err - } - binary.BigEndian.PutUint16(vb[len(vb)-2:], uint16(0)) //End tlv, 2 bytes, all zero - return nil - -} - -func decodeLinkLayerDiscovery(data []byte, p gopacket.PacketBuilder) error { - var vals []LinkLayerDiscoveryValue - vData := data[0:] - for len(vData) > 0 { - if len(vData) < 2 { - p.SetTruncated() - return errors.New("LLDP vdata < 2 bytes") - } - nbit := vData[0] & 0x01 - t := LLDPTLVType(vData[0] >> 1) - val := LinkLayerDiscoveryValue{Type: t, Length: uint16(nbit)<<8 + uint16(vData[1])} - if val.Length > 0 { - if len(vData) < int(val.Length+2) { - p.SetTruncated() - return fmt.Errorf("LLDP VData < %d bytes", val.Length+2) - } - val.Value = vData[2 : val.Length+2] - } - vals = append(vals, val) - if t == LLDPTLVEnd { - break - } - if len(vData) < int(2+val.Length) { - return errors.New("Malformed LinkLayerDiscovery Header") - } - vData = vData[2+val.Length:] - } - if len(vals) < 4 { - return errors.New("Missing mandatory LinkLayerDiscovery TLV") - } - c := &LinkLayerDiscovery{} - gotEnd := false - for _, v := range vals { - switch v.Type { - case LLDPTLVEnd: - gotEnd = true - case LLDPTLVChassisID: - if len(v.Value) < 2 { - return errors.New("Malformed LinkLayerDiscovery ChassisID TLV") - } - c.ChassisID.Subtype = LLDPChassisIDSubType(v.Value[0]) - c.ChassisID.ID = v.Value[1:] - case LLDPTLVPortID: - if len(v.Value) < 2 { - return errors.New("Malformed LinkLayerDiscovery PortID TLV") - } - c.PortID.Subtype = LLDPPortIDSubType(v.Value[0]) - c.PortID.ID = v.Value[1:] - case LLDPTLVTTL: - if len(v.Value) < 2 { - return errors.New("Malformed LinkLayerDiscovery TTL TLV") - } - c.TTL = binary.BigEndian.Uint16(v.Value[0:2]) - default: - c.Values = append(c.Values, v) - } - } - if c.ChassisID.Subtype == 0 || c.PortID.Subtype == 0 || !gotEnd { - return errors.New("Missing mandatory LinkLayerDiscovery TLV") - } - c.Contents = data - p.AddLayer(c) - - info := &LinkLayerDiscoveryInfo{} - p.AddLayer(info) - for _, v := range c.Values { - switch v.Type { - case LLDPTLVPortDescription: - info.PortDescription = string(v.Value) - case LLDPTLVSysName: - info.SysName = string(v.Value) - case LLDPTLVSysDescription: - info.SysDescription = string(v.Value) - case LLDPTLVSysCapabilities: - if err := checkLLDPTLVLen(v, 4); err != nil { - return err - } - info.SysCapabilities.SystemCap = getCapabilities(binary.BigEndian.Uint16(v.Value[0:2])) - info.SysCapabilities.EnabledCap = getCapabilities(binary.BigEndian.Uint16(v.Value[2:4])) - case LLDPTLVMgmtAddress: - if err := checkLLDPTLVLen(v, 9); err != nil { - return err - } - mlen := v.Value[0] - if err := checkLLDPTLVLen(v, int(mlen+7)); err != nil { - return err - } - info.MgmtAddress.Subtype = IANAAddressFamily(v.Value[1]) - info.MgmtAddress.Address = v.Value[2 : mlen+1] - info.MgmtAddress.InterfaceSubtype = LLDPInterfaceSubtype(v.Value[mlen+1]) - info.MgmtAddress.InterfaceNumber = binary.BigEndian.Uint32(v.Value[mlen+2 : mlen+6]) - olen := v.Value[mlen+6] - if err := checkLLDPTLVLen(v, int(mlen+7+olen)); err != nil { - return err - } - info.MgmtAddress.OID = string(v.Value[mlen+7 : mlen+7+olen]) - case LLDPTLVOrgSpecific: - if err := checkLLDPTLVLen(v, 4); err != nil { - return err - } - info.OrgTLVs = append(info.OrgTLVs, LLDPOrgSpecificTLV{IEEEOUI(binary.BigEndian.Uint32(append([]byte{byte(0)}, v.Value[0:3]...))), uint8(v.Value[3]), v.Value[4:]}) - } - } - return nil -} - -func (l *LinkLayerDiscoveryInfo) Decode8021() (info LLDPInfo8021, err error) { - for _, o := range l.OrgTLVs { - if o.OUI != IEEEOUI8021 { - continue - } - switch o.SubType { - case LLDP8021SubtypePortVLANID: - if err = checkLLDPOrgSpecificLen(o, 2); err != nil { - return - } - info.PVID = binary.BigEndian.Uint16(o.Info[0:2]) - case LLDP8021SubtypeProtocolVLANID: - if err = checkLLDPOrgSpecificLen(o, 3); err != nil { - return - } - sup := (o.Info[0]&LLDPProtocolVLANIDCapability > 0) - en := (o.Info[0]&LLDPProtocolVLANIDStatus > 0) - id := binary.BigEndian.Uint16(o.Info[1:3]) - info.PPVIDs = append(info.PPVIDs, PortProtocolVLANID{sup, en, id}) - case LLDP8021SubtypeVLANName: - if err = checkLLDPOrgSpecificLen(o, 2); err != nil { - return - } - id := binary.BigEndian.Uint16(o.Info[0:2]) - info.VLANNames = append(info.VLANNames, VLANName{id, string(o.Info[3:])}) - case LLDP8021SubtypeProtocolIdentity: - if err = checkLLDPOrgSpecificLen(o, 1); err != nil { - return - } - l := int(o.Info[0]) - if l > 0 { - info.ProtocolIdentities = append(info.ProtocolIdentities, o.Info[1:1+l]) - } - case LLDP8021SubtypeVDIUsageDigest: - if err = checkLLDPOrgSpecificLen(o, 4); err != nil { - return - } - info.VIDUsageDigest = binary.BigEndian.Uint32(o.Info[0:4]) - case LLDP8021SubtypeManagementVID: - if err = checkLLDPOrgSpecificLen(o, 2); err != nil { - return - } - info.ManagementVID = binary.BigEndian.Uint16(o.Info[0:2]) - case LLDP8021SubtypeLinkAggregation: - if err = checkLLDPOrgSpecificLen(o, 5); err != nil { - return - } - sup := (o.Info[0]&LLDPAggregationCapability > 0) - en := (o.Info[0]&LLDPAggregationStatus > 0) - info.LinkAggregation = LLDPLinkAggregation{sup, en, binary.BigEndian.Uint32(o.Info[1:5])} - } - } - return -} - -func (l *LinkLayerDiscoveryInfo) Decode8023() (info LLDPInfo8023, err error) { - for _, o := range l.OrgTLVs { - if o.OUI != IEEEOUI8023 { - continue - } - switch o.SubType { - case LLDP8023SubtypeMACPHY: - if err = checkLLDPOrgSpecificLen(o, 5); err != nil { - return - } - sup := (o.Info[0]&LLDPMACPHYCapability > 0) - en := (o.Info[0]&LLDPMACPHYStatus > 0) - ca := binary.BigEndian.Uint16(o.Info[1:3]) - mau := binary.BigEndian.Uint16(o.Info[3:5]) - info.MACPHYConfigStatus = LLDPMACPHYConfigStatus{sup, en, ca, mau} - case LLDP8023SubtypeMDIPower: - if err = checkLLDPOrgSpecificLen(o, 3); err != nil { - return - } - info.PowerViaMDI.PortClassPSE = (o.Info[0]&LLDPMDIPowerPortClass > 0) - info.PowerViaMDI.PSESupported = (o.Info[0]&LLDPMDIPowerCapability > 0) - info.PowerViaMDI.PSEEnabled = (o.Info[0]&LLDPMDIPowerStatus > 0) - info.PowerViaMDI.PSEPairsAbility = (o.Info[0]&LLDPMDIPowerPairsAbility > 0) - info.PowerViaMDI.PSEPowerPair = uint8(o.Info[1]) - info.PowerViaMDI.PSEClass = uint8(o.Info[2]) - if len(o.Info) >= 7 { - info.PowerViaMDI.Type = LLDPPowerType((o.Info[3] & 0xc0) >> 6) - info.PowerViaMDI.Source = LLDPPowerSource((o.Info[3] & 0x30) >> 4) - if info.PowerViaMDI.Type == 1 || info.PowerViaMDI.Type == 3 { - info.PowerViaMDI.Source += 128 // For Stringify purposes - } - info.PowerViaMDI.Priority = LLDPPowerPriority(o.Info[3] & 0x0f) - info.PowerViaMDI.Requested = binary.BigEndian.Uint16(o.Info[4:6]) - info.PowerViaMDI.Allocated = binary.BigEndian.Uint16(o.Info[6:8]) - } - case LLDP8023SubtypeLinkAggregation: - if err = checkLLDPOrgSpecificLen(o, 5); err != nil { - return - } - sup := (o.Info[0]&LLDPAggregationCapability > 0) - en := (o.Info[0]&LLDPAggregationStatus > 0) - info.LinkAggregation = LLDPLinkAggregation{sup, en, binary.BigEndian.Uint32(o.Info[1:5])} - case LLDP8023SubtypeMTU: - if err = checkLLDPOrgSpecificLen(o, 2); err != nil { - return - } - info.MTU = binary.BigEndian.Uint16(o.Info[0:2]) - } - } - return -} - -func (l *LinkLayerDiscoveryInfo) Decode8021Qbg() (info LLDPInfo8021Qbg, err error) { - for _, o := range l.OrgTLVs { - if o.OUI != IEEEOUI8021Qbg { - continue - } - switch o.SubType { - case LLDP8021QbgEVB: - if err = checkLLDPOrgSpecificLen(o, 9); err != nil { - return - } - info.EVBSettings.Supported = getEVBCapabilities(binary.BigEndian.Uint16(o.Info[0:2])) - info.EVBSettings.Enabled = getEVBCapabilities(binary.BigEndian.Uint16(o.Info[2:4])) - info.EVBSettings.SupportedVSIs = binary.BigEndian.Uint16(o.Info[4:6]) - info.EVBSettings.ConfiguredVSIs = binary.BigEndian.Uint16(o.Info[6:8]) - info.EVBSettings.RTEExponent = uint8(o.Info[8]) - } - } - return -} - -func (l *LinkLayerDiscoveryInfo) DecodeMedia() (info LLDPInfoMedia, err error) { - for _, o := range l.OrgTLVs { - if o.OUI != IEEEOUIMedia { - continue - } - switch LLDPMediaSubtype(o.SubType) { - case LLDPMediaTypeCapabilities: - if err = checkLLDPOrgSpecificLen(o, 3); err != nil { - return - } - b := binary.BigEndian.Uint16(o.Info[0:2]) - info.MediaCapabilities.Capabilities = (b & LLDPMediaCapsLLDP) > 0 - info.MediaCapabilities.NetworkPolicy = (b & LLDPMediaCapsNetwork) > 0 - info.MediaCapabilities.Location = (b & LLDPMediaCapsLocation) > 0 - info.MediaCapabilities.PowerPSE = (b & LLDPMediaCapsPowerPSE) > 0 - info.MediaCapabilities.PowerPD = (b & LLDPMediaCapsPowerPD) > 0 - info.MediaCapabilities.Inventory = (b & LLDPMediaCapsInventory) > 0 - info.MediaCapabilities.Class = LLDPMediaClass(o.Info[2]) - case LLDPMediaTypeNetwork: - if err = checkLLDPOrgSpecificLen(o, 4); err != nil { - return - } - info.NetworkPolicy.ApplicationType = LLDPApplicationType(o.Info[0]) - b := binary.BigEndian.Uint16(o.Info[1:3]) - info.NetworkPolicy.Defined = (b & 0x8000) == 0 - info.NetworkPolicy.Tagged = (b & 0x4000) > 0 - info.NetworkPolicy.VLANId = (b & 0x1ffe) >> 1 - b = binary.BigEndian.Uint16(o.Info[2:4]) - info.NetworkPolicy.L2Priority = (b & 0x01c0) >> 6 - info.NetworkPolicy.DSCPValue = uint8(o.Info[3] & 0x3f) - case LLDPMediaTypeLocation: - if err = checkLLDPOrgSpecificLen(o, 1); err != nil { - return - } - info.Location.Format = LLDPLocationFormat(o.Info[0]) - o.Info = o.Info[1:] - switch info.Location.Format { - case LLDPLocationFormatCoordinate: - if err = checkLLDPOrgSpecificLen(o, 16); err != nil { - return - } - info.Location.Coordinate.LatitudeResolution = uint8(o.Info[0]&0xfc) >> 2 - b := binary.BigEndian.Uint64(o.Info[0:8]) - info.Location.Coordinate.Latitude = (b & 0x03ffffffff000000) >> 24 - info.Location.Coordinate.LongitudeResolution = uint8(o.Info[5]&0xfc) >> 2 - b = binary.BigEndian.Uint64(o.Info[5:13]) - info.Location.Coordinate.Longitude = (b & 0x03ffffffff000000) >> 24 - info.Location.Coordinate.AltitudeType = uint8((o.Info[10] & 0x30) >> 4) - b1 := binary.BigEndian.Uint16(o.Info[10:12]) - info.Location.Coordinate.AltitudeResolution = (b1 & 0xfc0) >> 6 - b2 := binary.BigEndian.Uint32(o.Info[11:15]) - info.Location.Coordinate.Altitude = b2 & 0x3fffffff - info.Location.Coordinate.Datum = uint8(o.Info[15]) - case LLDPLocationFormatAddress: - if err = checkLLDPOrgSpecificLen(o, 3); err != nil { - return - } - //ll := uint8(o.Info[0]) - info.Location.Address.What = LLDPLocationAddressWhat(o.Info[1]) - info.Location.Address.CountryCode = string(o.Info[2:4]) - data := o.Info[4:] - for len(data) > 1 { - aType := LLDPLocationAddressType(data[0]) - aLen := int(data[1]) - if len(data) >= aLen+2 { - info.Location.Address.AddressLines = append(info.Location.Address.AddressLines, LLDPLocationAddressLine{aType, string(data[2 : aLen+2])}) - data = data[aLen+2:] - } else { - break - } - } - case LLDPLocationFormatECS: - info.Location.ECS.ELIN = string(o.Info) - } - case LLDPMediaTypePower: - if err = checkLLDPOrgSpecificLen(o, 3); err != nil { - return - } - info.PowerViaMDI.Type = LLDPPowerType((o.Info[0] & 0xc0) >> 6) - info.PowerViaMDI.Source = LLDPPowerSource((o.Info[0] & 0x30) >> 4) - if info.PowerViaMDI.Type == 1 || info.PowerViaMDI.Type == 3 { - info.PowerViaMDI.Source += 128 // For Stringify purposes - } - info.PowerViaMDI.Priority = LLDPPowerPriority(o.Info[0] & 0x0f) - info.PowerViaMDI.Value = binary.BigEndian.Uint16(o.Info[1:3]) * 100 // 0 to 102.3 w, 0.1W increments - case LLDPMediaTypeHardware: - info.HardwareRevision = string(o.Info) - case LLDPMediaTypeFirmware: - info.FirmwareRevision = string(o.Info) - case LLDPMediaTypeSoftware: - info.SoftwareRevision = string(o.Info) - case LLDPMediaTypeSerial: - info.SerialNumber = string(o.Info) - case LLDPMediaTypeManufacturer: - info.Manufacturer = string(o.Info) - case LLDPMediaTypeModel: - info.Model = string(o.Info) - case LLDPMediaTypeAssetID: - info.AssetID = string(o.Info) - } - } - return -} - -func (l *LinkLayerDiscoveryInfo) DecodeCisco2() (info LLDPInfoCisco2, err error) { - for _, o := range l.OrgTLVs { - if o.OUI != IEEEOUICisco2 { - continue - } - switch LLDPCisco2Subtype(o.SubType) { - case LLDPCisco2PowerViaMDI: - if err = checkLLDPOrgSpecificLen(o, 1); err != nil { - return - } - info.PSEFourWirePoESupported = (o.Info[0] & LLDPCiscoPSESupport) > 0 - info.PDSparePairArchitectureShared = (o.Info[0] & LLDPCiscoArchShared) > 0 - info.PDRequestSparePairPoEOn = (o.Info[0] & LLDPCiscoPDSparePair) > 0 - info.PSESparePairPoEOn = (o.Info[0] & LLDPCiscoPSESparePair) > 0 - } - } - return -} - -func (l *LinkLayerDiscoveryInfo) DecodeProfinet() (info LLDPInfoProfinet, err error) { - for _, o := range l.OrgTLVs { - if o.OUI != IEEEOUIProfinet { - continue - } - switch LLDPProfinetSubtype(o.SubType) { - case LLDPProfinetPNIODelay: - if err = checkLLDPOrgSpecificLen(o, 20); err != nil { - return - } - info.PNIODelay.RXLocal = binary.BigEndian.Uint32(o.Info[0:4]) - info.PNIODelay.RXRemote = binary.BigEndian.Uint32(o.Info[4:8]) - info.PNIODelay.TXLocal = binary.BigEndian.Uint32(o.Info[8:12]) - info.PNIODelay.TXRemote = binary.BigEndian.Uint32(o.Info[12:16]) - info.PNIODelay.CableLocal = binary.BigEndian.Uint32(o.Info[16:20]) - case LLDPProfinetPNIOPortStatus: - if err = checkLLDPOrgSpecificLen(o, 4); err != nil { - return - } - info.PNIOPortStatus.Class2 = binary.BigEndian.Uint16(o.Info[0:2]) - info.PNIOPortStatus.Class3 = binary.BigEndian.Uint16(o.Info[2:4]) - case LLDPProfinetPNIOMRPPortStatus: - if err = checkLLDPOrgSpecificLen(o, 18); err != nil { - return - } - info.PNIOMRPPortStatus.UUID = o.Info[0:16] - info.PNIOMRPPortStatus.Status = binary.BigEndian.Uint16(o.Info[16:18]) - case LLDPProfinetPNIOChassisMAC: - if err = checkLLDPOrgSpecificLen(o, 6); err != nil { - return - } - info.ChassisMAC = o.Info[0:6] - case LLDPProfinetPNIOPTCPStatus: - if err = checkLLDPOrgSpecificLen(o, 54); err != nil { - return - } - info.PNIOPTCPStatus.MasterAddress = o.Info[0:6] - info.PNIOPTCPStatus.SubdomainUUID = o.Info[6:22] - info.PNIOPTCPStatus.IRDataUUID = o.Info[22:38] - b := binary.BigEndian.Uint32(o.Info[38:42]) - info.PNIOPTCPStatus.PeriodValid = (b & 0x80000000) > 0 - info.PNIOPTCPStatus.PeriodLength = b & 0x7fffffff - b = binary.BigEndian.Uint32(o.Info[42:46]) - info.PNIOPTCPStatus.RedPeriodValid = (b & 0x80000000) > 0 - info.PNIOPTCPStatus.RedPeriodBegin = b & 0x7fffffff - b = binary.BigEndian.Uint32(o.Info[46:50]) - info.PNIOPTCPStatus.OrangePeriodValid = (b & 0x80000000) > 0 - info.PNIOPTCPStatus.OrangePeriodBegin = b & 0x7fffffff - b = binary.BigEndian.Uint32(o.Info[50:54]) - info.PNIOPTCPStatus.GreenPeriodValid = (b & 0x80000000) > 0 - info.PNIOPTCPStatus.GreenPeriodBegin = b & 0x7fffffff - } - } - return -} - -// LayerType returns gopacket.LayerTypeLinkLayerDiscoveryInfo. -func (c *LinkLayerDiscoveryInfo) LayerType() gopacket.LayerType { - return LayerTypeLinkLayerDiscoveryInfo -} - -func getCapabilities(v uint16) (c LLDPCapabilities) { - c.Other = (v&LLDPCapsOther > 0) - c.Repeater = (v&LLDPCapsRepeater > 0) - c.Bridge = (v&LLDPCapsBridge > 0) - c.WLANAP = (v&LLDPCapsWLANAP > 0) - c.Router = (v&LLDPCapsRouter > 0) - c.Phone = (v&LLDPCapsPhone > 0) - c.DocSis = (v&LLDPCapsDocSis > 0) - c.StationOnly = (v&LLDPCapsStationOnly > 0) - c.CVLAN = (v&LLDPCapsCVLAN > 0) - c.SVLAN = (v&LLDPCapsSVLAN > 0) - c.TMPR = (v&LLDPCapsTmpr > 0) - return -} - -func getEVBCapabilities(v uint16) (c LLDPEVBCapabilities) { - c.StandardBridging = (v & LLDPEVBCapsSTD) > 0 - c.StandardBridging = (v & LLDPEVBCapsSTD) > 0 - c.ReflectiveRelay = (v & LLDPEVBCapsRR) > 0 - c.RetransmissionTimerExponent = (v & LLDPEVBCapsRTE) > 0 - c.EdgeControlProtocol = (v & LLDPEVBCapsECP) > 0 - c.VSIDiscoveryProtocol = (v & LLDPEVBCapsVDP) > 0 - return -} - -func (t LLDPTLVType) String() (s string) { - switch t { - case LLDPTLVEnd: - s = "TLV End" - case LLDPTLVChassisID: - s = "Chassis ID" - case LLDPTLVPortID: - s = "Port ID" - case LLDPTLVTTL: - s = "TTL" - case LLDPTLVPortDescription: - s = "Port Description" - case LLDPTLVSysName: - s = "System Name" - case LLDPTLVSysDescription: - s = "System Description" - case LLDPTLVSysCapabilities: - s = "System Capabilities" - case LLDPTLVMgmtAddress: - s = "Management Address" - case LLDPTLVOrgSpecific: - s = "Organisation Specific" - default: - s = "Unknown" - } - return -} - -func (t LLDPChassisIDSubType) String() (s string) { - switch t { - case LLDPChassisIDSubTypeReserved: - s = "Reserved" - case LLDPChassisIDSubTypeChassisComp: - s = "Chassis Component" - case LLDPChassisIDSubtypeIfaceAlias: - s = "Interface Alias" - case LLDPChassisIDSubTypePortComp: - s = "Port Component" - case LLDPChassisIDSubTypeMACAddr: - s = "MAC Address" - case LLDPChassisIDSubTypeNetworkAddr: - s = "Network Address" - case LLDPChassisIDSubtypeIfaceName: - s = "Interface Name" - case LLDPChassisIDSubTypeLocal: - s = "Local" - default: - s = "Unknown" - } - return -} - -func (t LLDPPortIDSubType) String() (s string) { - switch t { - case LLDPPortIDSubtypeReserved: - s = "Reserved" - case LLDPPortIDSubtypeIfaceAlias: - s = "Interface Alias" - case LLDPPortIDSubtypePortComp: - s = "Port Component" - case LLDPPortIDSubtypeMACAddr: - s = "MAC Address" - case LLDPPortIDSubtypeNetworkAddr: - s = "Network Address" - case LLDPPortIDSubtypeIfaceName: - s = "Interface Name" - case LLDPPortIDSubtypeAgentCircuitID: - s = "Agent Circuit ID" - case LLDPPortIDSubtypeLocal: - s = "Local" - default: - s = "Unknown" - } - return -} - -func (t IANAAddressFamily) String() (s string) { - switch t { - case IANAAddressFamilyReserved: - s = "Reserved" - case IANAAddressFamilyIPV4: - s = "IPv4" - case IANAAddressFamilyIPV6: - s = "IPv6" - case IANAAddressFamilyNSAP: - s = "NSAP" - case IANAAddressFamilyHDLC: - s = "HDLC" - case IANAAddressFamilyBBN1822: - s = "BBN 1822" - case IANAAddressFamily802: - s = "802 media plus Ethernet 'canonical format'" - case IANAAddressFamilyE163: - s = "E.163" - case IANAAddressFamilyE164: - s = "E.164 (SMDS, Frame Relay, ATM)" - case IANAAddressFamilyF69: - s = "F.69 (Telex)" - case IANAAddressFamilyX121: - s = "X.121, X.25, Frame Relay" - case IANAAddressFamilyIPX: - s = "IPX" - case IANAAddressFamilyAtalk: - s = "Appletalk" - case IANAAddressFamilyDecnet: - s = "Decnet IV" - case IANAAddressFamilyBanyan: - s = "Banyan Vines" - case IANAAddressFamilyE164NSAP: - s = "E.164 with NSAP format subaddress" - case IANAAddressFamilyDNS: - s = "DNS" - case IANAAddressFamilyDistname: - s = "Distinguished Name" - case IANAAddressFamilyASNumber: - s = "AS Number" - case IANAAddressFamilyXTPIPV4: - s = "XTP over IP version 4" - case IANAAddressFamilyXTPIPV6: - s = "XTP over IP version 6" - case IANAAddressFamilyXTP: - s = "XTP native mode XTP" - case IANAAddressFamilyFcWWPN: - s = "Fibre Channel World-Wide Port Name" - case IANAAddressFamilyFcWWNN: - s = "Fibre Channel World-Wide Node Name" - case IANAAddressFamilyGWID: - s = "GWID" - case IANAAddressFamilyL2VPN: - s = "AFI for Layer 2 VPN" - default: - s = "Unknown" - } - return -} - -func (t LLDPInterfaceSubtype) String() (s string) { - switch t { - case LLDPInterfaceSubtypeUnknown: - s = "Unknown" - case LLDPInterfaceSubtypeifIndex: - s = "IfIndex" - case LLDPInterfaceSubtypeSysPort: - s = "System Port Number" - default: - s = "Unknown" - } - return -} - -func (t LLDPPowerType) String() (s string) { - switch t { - case 0: - s = "Type 2 PSE Device" - case 1: - s = "Type 2 PD Device" - case 2: - s = "Type 1 PSE Device" - case 3: - s = "Type 1 PD Device" - default: - s = "Unknown" - } - return -} - -func (t LLDPPowerSource) String() (s string) { - switch t { - // PD Device - case 0: - s = "Unknown" - case 1: - s = "PSE" - case 2: - s = "Local" - case 3: - s = "PSE and Local" - // PSE Device (Actual value + 128) - case 128: - s = "Unknown" - case 129: - s = "Primary Power Source" - case 130: - s = "Backup Power Source" - default: - s = "Unknown" - } - return -} - -func (t LLDPPowerPriority) String() (s string) { - switch t { - case 0: - s = "Unknown" - case 1: - s = "Critical" - case 2: - s = "High" - case 3: - s = "Low" - default: - s = "Unknown" - } - return -} - -func (t LLDPMediaSubtype) String() (s string) { - switch t { - case LLDPMediaTypeCapabilities: - s = "Media Capabilities " - case LLDPMediaTypeNetwork: - s = "Network Policy" - case LLDPMediaTypeLocation: - s = "Location Identification" - case LLDPMediaTypePower: - s = "Extended Power-via-MDI" - case LLDPMediaTypeHardware: - s = "Hardware Revision" - case LLDPMediaTypeFirmware: - s = "Firmware Revision" - case LLDPMediaTypeSoftware: - s = "Software Revision" - case LLDPMediaTypeSerial: - s = "Serial Number" - case LLDPMediaTypeManufacturer: - s = "Manufacturer" - case LLDPMediaTypeModel: - s = "Model" - case LLDPMediaTypeAssetID: - s = "Asset ID" - default: - s = "Unknown" - } - return -} - -func (t LLDPMediaClass) String() (s string) { - switch t { - case LLDPMediaClassUndefined: - s = "Undefined" - case LLDPMediaClassEndpointI: - s = "Endpoint Class I" - case LLDPMediaClassEndpointII: - s = "Endpoint Class II" - case LLDPMediaClassEndpointIII: - s = "Endpoint Class III" - case LLDPMediaClassNetwork: - s = "Network connectivity " - default: - s = "Unknown" - } - return -} - -func (t LLDPApplicationType) String() (s string) { - switch t { - case LLDPAppTypeReserved: - s = "Reserved" - case LLDPAppTypeVoice: - s = "Voice" - case LLDPappTypeVoiceSignaling: - s = "Voice Signaling" - case LLDPappTypeGuestVoice: - s = "Guest Voice" - case LLDPappTypeGuestVoiceSignaling: - s = "Guest Voice Signaling" - case LLDPappTypeSoftphoneVoice: - s = "Softphone Voice" - case LLDPappTypeVideoConferencing: - s = "Video Conferencing" - case LLDPappTypeStreamingVideo: - s = "Streaming Video" - case LLDPappTypeVideoSignaling: - s = "Video Signaling" - default: - s = "Unknown" - } - return -} - -func (t LLDPLocationFormat) String() (s string) { - switch t { - case LLDPLocationFormatInvalid: - s = "Invalid" - case LLDPLocationFormatCoordinate: - s = "Coordinate-based LCI" - case LLDPLocationFormatAddress: - s = "Address-based LCO" - case LLDPLocationFormatECS: - s = "ECS ELIN" - default: - s = "Unknown" - } - return -} - -func (t LLDPLocationAddressType) String() (s string) { - switch t { - case LLDPLocationAddressTypeLanguage: - s = "Language" - case LLDPLocationAddressTypeNational: - s = "National subdivisions (province, state, etc)" - case LLDPLocationAddressTypeCounty: - s = "County, parish, district" - case LLDPLocationAddressTypeCity: - s = "City, township" - case LLDPLocationAddressTypeCityDivision: - s = "City division, borough, ward" - case LLDPLocationAddressTypeNeighborhood: - s = "Neighborhood, block" - case LLDPLocationAddressTypeStreet: - s = "Street" - case LLDPLocationAddressTypeLeadingStreet: - s = "Leading street direction" - case LLDPLocationAddressTypeTrailingStreet: - s = "Trailing street suffix" - case LLDPLocationAddressTypeStreetSuffix: - s = "Street suffix" - case LLDPLocationAddressTypeHouseNum: - s = "House number" - case LLDPLocationAddressTypeHouseSuffix: - s = "House number suffix" - case LLDPLocationAddressTypeLandmark: - s = "Landmark or vanity address" - case LLDPLocationAddressTypeAdditional: - s = "Additional location information" - case LLDPLocationAddressTypeName: - s = "Name" - case LLDPLocationAddressTypePostal: - s = "Postal/ZIP code" - case LLDPLocationAddressTypeBuilding: - s = "Building" - case LLDPLocationAddressTypeUnit: - s = "Unit" - case LLDPLocationAddressTypeFloor: - s = "Floor" - case LLDPLocationAddressTypeRoom: - s = "Room number" - case LLDPLocationAddressTypePlace: - s = "Place type" - case LLDPLocationAddressTypeScript: - s = "Script" - default: - s = "Unknown" - } - return -} - -func checkLLDPTLVLen(v LinkLayerDiscoveryValue, l int) (err error) { - if len(v.Value) < l { - err = fmt.Errorf("Invalid TLV %v length %d (wanted mimimum %v", v.Type, len(v.Value), l) - } - return -} - -func checkLLDPOrgSpecificLen(o LLDPOrgSpecificTLV, l int) (err error) { - if len(o.Info) < l { - err = fmt.Errorf("Invalid Org Specific TLV %v length %d (wanted minimum %v)", o.SubType, len(o.Info), l) - } - return -} diff --git a/vendor/github.com/google/gopacket/layers/loopback.go b/vendor/github.com/google/gopacket/layers/loopback.go deleted file mode 100644 index 839f760739..0000000000 --- a/vendor/github.com/google/gopacket/layers/loopback.go +++ /dev/null @@ -1,80 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - - "github.com/google/gopacket" -) - -// Loopback contains the header for loopback encapsulation. This header is -// used by both BSD and OpenBSD style loopback decoding (pcap's DLT_NULL -// and DLT_LOOP, respectively). -type Loopback struct { - BaseLayer - Family ProtocolFamily -} - -// LayerType returns LayerTypeLoopback. -func (l *Loopback) LayerType() gopacket.LayerType { return LayerTypeLoopback } - -// DecodeFromBytes decodes the given bytes into this layer. -func (l *Loopback) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 4 { - return errors.New("Loopback packet too small") - } - - // The protocol could be either big-endian or little-endian, we're - // not sure. But we're PRETTY sure that the value is less than - // 256, so we can check the first two bytes. - var prot uint32 - if data[0] == 0 && data[1] == 0 { - prot = binary.BigEndian.Uint32(data[:4]) - } else { - prot = binary.LittleEndian.Uint32(data[:4]) - } - if prot > 0xFF { - return fmt.Errorf("Invalid loopback protocol %q", data[:4]) - } - - l.Family = ProtocolFamily(prot) - l.BaseLayer = BaseLayer{data[:4], data[4:]} - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (l *Loopback) CanDecode() gopacket.LayerClass { - return LayerTypeLoopback -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (l *Loopback) NextLayerType() gopacket.LayerType { - return l.Family.LayerType() -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -func (l *Loopback) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - bytes, err := b.PrependBytes(4) - if err != nil { - return err - } - binary.LittleEndian.PutUint32(bytes, uint32(l.Family)) - return nil -} - -func decodeLoopback(data []byte, p gopacket.PacketBuilder) error { - l := Loopback{} - if err := l.DecodeFromBytes(data, gopacket.NilDecodeFeedback); err != nil { - return err - } - p.AddLayer(&l) - return p.NextDecoder(l.Family) -} diff --git a/vendor/github.com/google/gopacket/layers/mldv1.go b/vendor/github.com/google/gopacket/layers/mldv1.go deleted file mode 100644 index e1bb1dc00f..0000000000 --- a/vendor/github.com/google/gopacket/layers/mldv1.go +++ /dev/null @@ -1,182 +0,0 @@ -// Copyright 2018 GoPacket Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - "math" - "net" - "time" - - "github.com/google/gopacket" -) - -// MLDv1Message represents the common structure of all MLDv1 messages -type MLDv1Message struct { - BaseLayer - // 3.4. Maximum Response Delay - MaximumResponseDelay time.Duration - // 3.6. Multicast Address - // Zero in general query - // Specific IPv6 multicast address otherwise - MulticastAddress net.IP -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (m *MLDv1Message) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 20 { - df.SetTruncated() - return errors.New("ICMP layer less than 20 bytes for Multicast Listener Query Message V1") - } - - m.MaximumResponseDelay = time.Duration(binary.BigEndian.Uint16(data[0:2])) * time.Millisecond - // data[2:4] is reserved and not used in mldv1 - m.MulticastAddress = data[4:20] - - return nil -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (*MLDv1Message) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypeZero -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (m *MLDv1Message) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - buf, err := b.PrependBytes(20) - if err != nil { - return err - } - - if m.MaximumResponseDelay < 0 { - return errors.New("maximum response delay must not be negative") - } - dms := m.MaximumResponseDelay / time.Millisecond - if dms > math.MaxUint16 { - return fmt.Errorf("maximum response delay %dms is more than the allowed 65535ms", dms) - } - binary.BigEndian.PutUint16(buf[0:2], uint16(dms)) - - copy(buf[2:4], []byte{0x0, 0x0}) - - ma16 := m.MulticastAddress.To16() - if ma16 == nil { - return fmt.Errorf("invalid multicast address '%s'", m.MulticastAddress) - } - copy(buf[4:20], ma16) - - return nil -} - -// Sums this layer up nicely formatted -func (m *MLDv1Message) String() string { - return fmt.Sprintf( - "Maximum Response Delay: %dms, Multicast Address: %s", - m.MaximumResponseDelay/time.Millisecond, - m.MulticastAddress) -} - -// MLDv1MulticastListenerQueryMessage are sent by the router to determine -// whether there are multicast listeners on the link. -// https://tools.ietf.org/html/rfc2710 Page 5 -type MLDv1MulticastListenerQueryMessage struct { - MLDv1Message -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (m *MLDv1MulticastListenerQueryMessage) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - err := m.MLDv1Message.DecodeFromBytes(data, df) - if err != nil { - return err - } - - if len(data) > 20 { - m.Payload = data[20:] - } - - return nil -} - -// LayerType returns LayerTypeMLDv1MulticastListenerQuery. -func (*MLDv1MulticastListenerQueryMessage) LayerType() gopacket.LayerType { - return LayerTypeMLDv1MulticastListenerQuery -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (*MLDv1MulticastListenerQueryMessage) CanDecode() gopacket.LayerClass { - return LayerTypeMLDv1MulticastListenerQuery -} - -// IsGeneralQuery is true when this is a general query. -// In a Query message, the Multicast Address field is set to zero when -// sending a General Query. -// https://tools.ietf.org/html/rfc2710#section-3.6 -func (m *MLDv1MulticastListenerQueryMessage) IsGeneralQuery() bool { - return net.IPv6zero.Equal(m.MulticastAddress) -} - -// IsSpecificQuery is true when this is not a general query. -// In a Query message, the Multicast Address field is set to a specific -// IPv6 multicast address when sending a Multicast-Address-Specific Query. -// https://tools.ietf.org/html/rfc2710#section-3.6 -func (m *MLDv1MulticastListenerQueryMessage) IsSpecificQuery() bool { - return !m.IsGeneralQuery() -} - -// MLDv1MulticastListenerReportMessage is sent by a client listening on -// a specific multicast address to indicate that it is (still) listening -// on the specific multicast address. -// https://tools.ietf.org/html/rfc2710 Page 6 -type MLDv1MulticastListenerReportMessage struct { - MLDv1Message -} - -// LayerType returns LayerTypeMLDv1MulticastListenerReport. -func (*MLDv1MulticastListenerReportMessage) LayerType() gopacket.LayerType { - return LayerTypeMLDv1MulticastListenerReport -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (*MLDv1MulticastListenerReportMessage) CanDecode() gopacket.LayerClass { - return LayerTypeMLDv1MulticastListenerReport -} - -// MLDv1MulticastListenerDoneMessage should be sent by a client when it ceases -// to listen to a multicast address on an interface. -// https://tools.ietf.org/html/rfc2710 Page 7 -type MLDv1MulticastListenerDoneMessage struct { - MLDv1Message -} - -// LayerType returns LayerTypeMLDv1MulticastListenerDone. -func (*MLDv1MulticastListenerDoneMessage) LayerType() gopacket.LayerType { - return LayerTypeMLDv1MulticastListenerDone -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (*MLDv1MulticastListenerDoneMessage) CanDecode() gopacket.LayerClass { - return LayerTypeMLDv1MulticastListenerDone -} - -func decodeMLDv1MulticastListenerReport(data []byte, p gopacket.PacketBuilder) error { - m := &MLDv1MulticastListenerReportMessage{} - return decodingLayerDecoder(m, data, p) -} - -func decodeMLDv1MulticastListenerQuery(data []byte, p gopacket.PacketBuilder) error { - m := &MLDv1MulticastListenerQueryMessage{} - return decodingLayerDecoder(m, data, p) -} - -func decodeMLDv1MulticastListenerDone(data []byte, p gopacket.PacketBuilder) error { - m := &MLDv1MulticastListenerDoneMessage{} - return decodingLayerDecoder(m, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/mldv2.go b/vendor/github.com/google/gopacket/layers/mldv2.go deleted file mode 100644 index 05100a52d1..0000000000 --- a/vendor/github.com/google/gopacket/layers/mldv2.go +++ /dev/null @@ -1,619 +0,0 @@ -// Copyright 2018 GoPacket Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - "math" - "net" - "time" - - "github.com/google/gopacket" -) - -const ( - // S Flag bit is 1 - mldv2STrue uint8 = 0x8 - - // S Flag value mask - // mldv2STrue & mldv2SMask == mldv2STrue // true - // 0x1 & mldv2SMask == mldv2STrue // true - // 0x0 & mldv2SMask == mldv2STrue // false - mldv2SMask uint8 = 0x8 - - // QRV value mask - mldv2QRVMask uint8 = 0x7 -) - -// MLDv2MulticastListenerQueryMessage are sent by multicast routers to query the -// multicast listening state of neighboring interfaces. -// https://tools.ietf.org/html/rfc3810#section-5.1 -// -// Some information, like Maximum Response Code and Multicast Address are in the -// previous layer LayerTypeMLDv1MulticastListenerQuery -type MLDv2MulticastListenerQueryMessage struct { - BaseLayer - // 5.1.3. Maximum Response Delay COde - MaximumResponseCode uint16 - // 5.1.5. Multicast Address - // Zero in general query - // Specific IPv6 multicast address otherwise - MulticastAddress net.IP - // 5.1.7. S Flag (Suppress Router-Side Processing) - SuppressRoutersideProcessing bool - // 5.1.8. QRV (Querier's Robustness Variable) - QueriersRobustnessVariable uint8 - // 5.1.9. QQIC (Querier's Query Interval Code) - QueriersQueryIntervalCode uint8 - // 5.1.10. Number of Sources (N) - NumberOfSources uint16 - // 5.1.11 Source Address [i] - SourceAddresses []net.IP -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (m *MLDv2MulticastListenerQueryMessage) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 24 { - df.SetTruncated() - return errors.New("ICMP layer less than 24 bytes for Multicast Listener Query Message V2") - } - - m.MaximumResponseCode = binary.BigEndian.Uint16(data[0:2]) - // ignore data[2:4] as per https://tools.ietf.org/html/rfc3810#section-5.1.4 - m.MulticastAddress = data[4:20] - m.SuppressRoutersideProcessing = (data[20] & mldv2SMask) == mldv2STrue - m.QueriersRobustnessVariable = data[20] & mldv2QRVMask - m.QueriersQueryIntervalCode = data[21] - - m.NumberOfSources = binary.BigEndian.Uint16(data[22:24]) - - var end int - for i := uint16(0); i < m.NumberOfSources; i++ { - begin := 24 + (int(i) * 16) - end = begin + 16 - - if end > len(data) { - df.SetTruncated() - return fmt.Errorf("ICMP layer less than %d bytes for Multicast Listener Query Message V2", end) - } - - m.SourceAddresses = append(m.SourceAddresses, data[begin:end]) - } - - return nil -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (*MLDv2MulticastListenerQueryMessage) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypeZero -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (m *MLDv2MulticastListenerQueryMessage) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - if err := m.serializeSourceAddressesTo(b, opts); err != nil { - return err - } - - buf, err := b.PrependBytes(24) - if err != nil { - return err - } - - binary.BigEndian.PutUint16(buf[0:2], m.MaximumResponseCode) - copy(buf[2:4], []byte{0x00, 0x00}) // set reserved bytes to zero - - ma16 := m.MulticastAddress.To16() - if ma16 == nil { - return fmt.Errorf("invalid MulticastAddress '%s'", m.MulticastAddress) - } - copy(buf[4:20], ma16) - - byte20 := m.QueriersRobustnessVariable & mldv2QRVMask - if m.SuppressRoutersideProcessing { - byte20 |= mldv2STrue - } else { - byte20 &= ^mldv2STrue // the complement of mldv2STrue - } - byte20 &= 0x0F // set reserved bits to zero - buf[20] = byte20 - - binary.BigEndian.PutUint16(buf[22:24], m.NumberOfSources) - buf[21] = m.QueriersQueryIntervalCode - - return nil -} - -// writes each source address to the buffer preserving the order -func (m *MLDv2MulticastListenerQueryMessage) serializeSourceAddressesTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - numberOfSourceAddresses := len(m.SourceAddresses) - if numberOfSourceAddresses > math.MaxUint16 { - return fmt.Errorf( - "there are more than %d source addresses, but 65535 is the maximum number of supported addresses", - numberOfSourceAddresses) - } - - if opts.FixLengths { - m.NumberOfSources = uint16(numberOfSourceAddresses) - } - - lastSAIdx := numberOfSourceAddresses - 1 - for k := range m.SourceAddresses { - i := lastSAIdx - k // reverse order - - buf, err := b.PrependBytes(16) - if err != nil { - return err - } - - sa16 := m.SourceAddresses[i].To16() - if sa16 == nil { - return fmt.Errorf("invalid source address [%d] '%s'", i, m.SourceAddresses[i]) - } - copy(buf[0:16], sa16) - } - - return nil -} - -// String sums this layer up nicely formatted -func (m *MLDv2MulticastListenerQueryMessage) String() string { - return fmt.Sprintf( - "Maximum Response Code: %#x (%dms), Multicast Address: %s, Suppress Routerside Processing: %t, QRV: %#x, QQIC: %#x (%ds), Number of Source Address: %d (actual: %d), Source Addresses: %s", - m.MaximumResponseCode, - m.MaximumResponseDelay(), - m.MulticastAddress, - m.SuppressRoutersideProcessing, - m.QueriersRobustnessVariable, - m.QueriersQueryIntervalCode, - m.QQI()/time.Second, - m.NumberOfSources, - len(m.SourceAddresses), - m.SourceAddresses) -} - -// LayerType returns LayerTypeMLDv2MulticastListenerQuery. -func (*MLDv2MulticastListenerQueryMessage) LayerType() gopacket.LayerType { - return LayerTypeMLDv2MulticastListenerQuery -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (*MLDv2MulticastListenerQueryMessage) CanDecode() gopacket.LayerClass { - return LayerTypeMLDv2MulticastListenerQuery -} - -// QQI calculates the Querier's Query Interval based on the QQIC -// according to https://tools.ietf.org/html/rfc3810#section-5.1.9 -func (m *MLDv2MulticastListenerQueryMessage) QQI() time.Duration { - data := m.QueriersQueryIntervalCode - if data < 128 { - return time.Second * time.Duration(data) - } - - exp := uint16(data) & 0x70 >> 4 - mant := uint16(data) & 0x0F - return time.Second * time.Duration(mant|0x1000<<(exp+3)) -} - -// SetQQI calculates and updates the Querier's Query Interval Code (QQIC) -// according to https://tools.ietf.org/html/rfc3810#section-5.1.9 -func (m *MLDv2MulticastListenerQueryMessage) SetQQI(d time.Duration) error { - if d < 0 { - m.QueriersQueryIntervalCode = 0 - return errors.New("QQI duration is negative") - } - - if d == 0 { - m.QueriersQueryIntervalCode = 0 - return nil - } - - dms := d / time.Second - if dms < 128 { - m.QueriersQueryIntervalCode = uint8(dms) - } - - if dms > 31744 { // mant=0xF, exp=0x7 - m.QueriersQueryIntervalCode = 0xFF - return fmt.Errorf("QQI duration %ds is, maximum allowed is 31744s", dms) - } - - value := uint16(dms) // ok, because 31744 < math.MaxUint16 - exp := uint8(7) - for mask := uint16(0x4000); exp > 0; exp-- { - if mask&value != 0 { - break - } - - mask >>= 1 - } - - mant := uint8(0x000F & (value >> (exp + 3))) - sig := uint8(0x10) - m.QueriersQueryIntervalCode = sig | exp<<4 | mant - - return nil -} - -// MaximumResponseDelay returns the Maximum Response Delay based on the -// Maximum Response Code according to -// https://tools.ietf.org/html/rfc3810#section-5.1.3 -func (m *MLDv2MulticastListenerQueryMessage) MaximumResponseDelay() time.Duration { - if m.MaximumResponseCode < 0x8000 { - return time.Duration(m.MaximumResponseCode) - } - - exp := m.MaximumResponseCode & 0x7000 >> 12 - mant := m.MaximumResponseCode & 0x0FFF - - return time.Millisecond * time.Duration(mant|0x1000<<(exp+3)) -} - -// SetMLDv2MaximumResponseDelay updates the Maximum Response Code according to -// https://tools.ietf.org/html/rfc3810#section-5.1.3 -func (m *MLDv2MulticastListenerQueryMessage) SetMLDv2MaximumResponseDelay(d time.Duration) error { - if d == 0 { - m.MaximumResponseCode = 0 - return nil - } - - if d < 0 { - return errors.New("maximum response delay must not be negative") - } - - dms := d / time.Millisecond - - if dms < 32768 { - m.MaximumResponseCode = uint16(dms) - } - - if dms > 4193280 { // mant=0xFFF, exp=0x7 - return fmt.Errorf("maximum response delay %dms is bigger the than maximum of 4193280ms", dms) - } - - value := uint32(dms) // ok, because 4193280 < math.MaxUint32 - exp := uint8(7) - for mask := uint32(0x40000000); exp > 0; exp-- { - if mask&value != 0 { - break - } - - mask >>= 1 - } - - mant := uint16(0x00000FFF & (value >> (exp + 3))) - sig := uint16(0x1000) - m.MaximumResponseCode = sig | uint16(exp)<<12 | mant - return nil -} - -// MLDv2MulticastListenerReportMessage is sent by an IP node to report the -// current multicast listening state, or changes therein. -// https://tools.ietf.org/html/rfc3810#section-5.2 -type MLDv2MulticastListenerReportMessage struct { - BaseLayer - // 5.2.3. Nr of Mcast Address Records - NumberOfMulticastAddressRecords uint16 - // 5.2.4. Multicast Address Record [i] - MulticastAddressRecords []MLDv2MulticastAddressRecord -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (m *MLDv2MulticastListenerReportMessage) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 4 { - df.SetTruncated() - return errors.New("ICMP layer less than 4 bytes for Multicast Listener Report Message V2") - } - - // ignore data[0:2] as per RFC - // https://tools.ietf.org/html/rfc3810#section-5.2.1 - m.NumberOfMulticastAddressRecords = binary.BigEndian.Uint16(data[2:4]) - - begin := 4 - for i := uint16(0); i < m.NumberOfMulticastAddressRecords; i++ { - mar := MLDv2MulticastAddressRecord{} - read, err := mar.decode(data[begin:], df) - if err != nil { - return err - } - - m.MulticastAddressRecords = append(m.MulticastAddressRecords, mar) - - begin += read - } - - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (m *MLDv2MulticastListenerReportMessage) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - lastItemIdx := len(m.MulticastAddressRecords) - 1 - for k := range m.MulticastAddressRecords { - i := lastItemIdx - k // reverse order - - err := m.MulticastAddressRecords[i].serializeTo(b, opts) - if err != nil { - return err - } - } - - if opts.FixLengths { - numberOfMAR := len(m.MulticastAddressRecords) - if numberOfMAR > math.MaxUint16 { - return fmt.Errorf( - "%d multicast address records added, but the maximum is 65535", - numberOfMAR) - } - - m.NumberOfMulticastAddressRecords = uint16(numberOfMAR) - } - - buf, err := b.PrependBytes(4) - if err != nil { - return err - } - - copy(buf[0:2], []byte{0x0, 0x0}) - binary.BigEndian.PutUint16(buf[2:4], m.NumberOfMulticastAddressRecords) - return nil -} - -// Sums this layer up nicely formatted -func (m *MLDv2MulticastListenerReportMessage) String() string { - return fmt.Sprintf( - "Number of Mcast Addr Records: %d (actual %d), Multicast Address Records: %+v", - m.NumberOfMulticastAddressRecords, - len(m.MulticastAddressRecords), - m.MulticastAddressRecords) -} - -// LayerType returns LayerTypeMLDv2MulticastListenerQuery. -func (*MLDv2MulticastListenerReportMessage) LayerType() gopacket.LayerType { - return LayerTypeMLDv2MulticastListenerReport -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (*MLDv2MulticastListenerReportMessage) CanDecode() gopacket.LayerClass { - return LayerTypeMLDv2MulticastListenerReport -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (*MLDv2MulticastListenerReportMessage) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -// MLDv2MulticastAddressRecordType holds the type of a -// Multicast Address Record, according to -// https://tools.ietf.org/html/rfc3810#section-5.2.5 and -// https://tools.ietf.org/html/rfc3810#section-5.2.12 -type MLDv2MulticastAddressRecordType uint8 - -const ( - // MLDv2MulticastAddressRecordTypeModeIsIncluded stands for - // MODE_IS_INCLUDE - indicates that the interface has a filter - // mode of INCLUDE for the specified multicast address. - MLDv2MulticastAddressRecordTypeModeIsIncluded MLDv2MulticastAddressRecordType = 1 - // MLDv2MulticastAddressRecordTypeModeIsExcluded stands for - // MODE_IS_EXCLUDE - indicates that the interface has a filter - // mode of EXCLUDE for the specified multicast address. - MLDv2MulticastAddressRecordTypeModeIsExcluded MLDv2MulticastAddressRecordType = 2 - // MLDv2MulticastAddressRecordTypeChangeToIncludeMode stands for - // CHANGE_TO_INCLUDE_MODE - indicates that the interface has - // changed to INCLUDE filter mode for the specified multicast - // address. - MLDv2MulticastAddressRecordTypeChangeToIncludeMode MLDv2MulticastAddressRecordType = 3 - // MLDv2MulticastAddressRecordTypeChangeToExcludeMode stands for - // CHANGE_TO_EXCLUDE_MODE - indicates that the interface has - // changed to EXCLUDE filter mode for the specified multicast - // address - MLDv2MulticastAddressRecordTypeChangeToExcludeMode MLDv2MulticastAddressRecordType = 4 - // MLDv2MulticastAddressRecordTypeAllowNewSources stands for - // ALLOW_NEW_SOURCES - indicates that the Source Address [i] - // fields in this Multicast Address Record contain a list of - // the additional sources that the node wishes to listen to, - // for packets sent to the specified multicast address. - MLDv2MulticastAddressRecordTypeAllowNewSources MLDv2MulticastAddressRecordType = 5 - // MLDv2MulticastAddressRecordTypeBlockOldSources stands for - // BLOCK_OLD_SOURCES - indicates that the Source Address [i] - // fields in this Multicast Address Record contain a list of - // the sources that the node no longer wishes to listen to, - // for packets sent to the specified multicast address. - MLDv2MulticastAddressRecordTypeBlockOldSources MLDv2MulticastAddressRecordType = 6 -) - -// Human readable record types -// Naming follows https://tools.ietf.org/html/rfc3810#section-5.2.12 -func (m MLDv2MulticastAddressRecordType) String() string { - switch m { - case MLDv2MulticastAddressRecordTypeModeIsIncluded: - return "MODE_IS_INCLUDE" - case MLDv2MulticastAddressRecordTypeModeIsExcluded: - return "MODE_IS_EXCLUDE" - case MLDv2MulticastAddressRecordTypeChangeToIncludeMode: - return "CHANGE_TO_INCLUDE_MODE" - case MLDv2MulticastAddressRecordTypeChangeToExcludeMode: - return "CHANGE_TO_EXCLUDE_MODE" - case MLDv2MulticastAddressRecordTypeAllowNewSources: - return "ALLOW_NEW_SOURCES" - case MLDv2MulticastAddressRecordTypeBlockOldSources: - return "BLOCK_OLD_SOURCES" - default: - return fmt.Sprintf("UNKNOWN(%d)", m) - } -} - -// MLDv2MulticastAddressRecord contains information on the sender listening to a -// single multicast address on the interface the report is sent. -// https://tools.ietf.org/html/rfc3810#section-5.2.4 -type MLDv2MulticastAddressRecord struct { - // 5.2.5. Record Type - RecordType MLDv2MulticastAddressRecordType - // 5.2.6. Auxiliary Data Length (number of 32-bit words) - AuxDataLen uint8 - // 5.2.7. Number Of Sources (N) - N uint16 - // 5.2.8. Multicast Address - MulticastAddress net.IP - // 5.2.9 Source Address [i] - SourceAddresses []net.IP - // 5.2.10 Auxiliary Data - AuxiliaryData []byte -} - -// decodes a multicast address record from bytes -func (m *MLDv2MulticastAddressRecord) decode(data []byte, df gopacket.DecodeFeedback) (int, error) { - if len(data) < 20 { - df.SetTruncated() - return 0, errors.New( - "Multicast Listener Report Message V2 layer less than 4 bytes for Multicast Address Record") - } - - m.RecordType = MLDv2MulticastAddressRecordType(data[0]) - m.AuxDataLen = data[1] - m.N = binary.BigEndian.Uint16(data[2:4]) - m.MulticastAddress = data[4:20] - - for i := uint16(0); i < m.N; i++ { - begin := 20 + (int(i) * 16) - end := begin + 16 - - if len(data) < end { - df.SetTruncated() - return begin, fmt.Errorf( - "Multicast Listener Report Message V2 layer less than %d bytes for Multicast Address Record", end) - } - - m.SourceAddresses = append(m.SourceAddresses, data[begin:end]) - } - - expectedLengthWithouAuxData := 20 + (int(m.N) * 16) - expectedTotalLength := (int(m.AuxDataLen) * 4) + expectedLengthWithouAuxData // *4 because AuxDataLen are 32bit words - if len(data) < expectedTotalLength { - return expectedLengthWithouAuxData, fmt.Errorf( - "Multicast Listener Report Message V2 layer less than %d bytes for Multicast Address Record", - expectedLengthWithouAuxData) - } - - m.AuxiliaryData = data[expectedLengthWithouAuxData:expectedTotalLength] - - return expectedTotalLength, nil -} - -// String sums this layer up nicely formatted -func (m *MLDv2MulticastAddressRecord) String() string { - return fmt.Sprintf( - "RecordType: %d (%s), AuxDataLen: %d [32-bit words], N: %d, Multicast Address: %s, SourceAddresses: %s, Auxiliary Data: %#x", - m.RecordType, - m.RecordType.String(), - m.AuxDataLen, - m.N, - m.MulticastAddress.To16(), - m.SourceAddresses, - m.AuxiliaryData) -} - -// serializes a multicast address record -func (m *MLDv2MulticastAddressRecord) serializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - if err := m.serializeAuxiliaryDataTo(b, opts); err != nil { - return err - } - - if err := m.serializeSourceAddressesTo(b, opts); err != nil { - return err - } - - buf, err := b.PrependBytes(20) - if err != nil { - return err - } - - buf[0] = uint8(m.RecordType) - buf[1] = m.AuxDataLen - binary.BigEndian.PutUint16(buf[2:4], m.N) - - ma16 := m.MulticastAddress.To16() - if ma16 == nil { - return fmt.Errorf("invalid multicast address '%s'", m.MulticastAddress) - } - copy(buf[4:20], ma16) - - return nil -} - -// serializes the auxiliary data of a multicast address record -func (m *MLDv2MulticastAddressRecord) serializeAuxiliaryDataTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - if remainder := len(m.AuxiliaryData) % 4; remainder != 0 { - zeroWord := []byte{0x0, 0x0, 0x0, 0x0} - m.AuxiliaryData = append(m.AuxiliaryData, zeroWord[:remainder]...) - } - - if opts.FixLengths { - auxDataLen := len(m.AuxiliaryData) / 4 - - if auxDataLen > math.MaxUint8 { - return fmt.Errorf("auxilary data is %d 32-bit words, but the maximum is 255 32-bit words", auxDataLen) - } - - m.AuxDataLen = uint8(auxDataLen) - } - - buf, err := b.PrependBytes(len(m.AuxiliaryData)) - if err != nil { - return err - } - - copy(buf, m.AuxiliaryData) - return nil -} - -// serializes the source addresses of a multicast address record preserving the order -func (m *MLDv2MulticastAddressRecord) serializeSourceAddressesTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - if opts.FixLengths { - numberOfSourceAddresses := len(m.SourceAddresses) - - if numberOfSourceAddresses > math.MaxUint16 { - return fmt.Errorf( - "%d source addresses added, but the maximum is 65535", - numberOfSourceAddresses) - } - - m.N = uint16(numberOfSourceAddresses) - } - - lastItemIdx := len(m.SourceAddresses) - 1 - for k := range m.SourceAddresses { - i := lastItemIdx - k // reverse order - - buf, err := b.PrependBytes(16) - if err != nil { - return err - } - - sa16 := m.SourceAddresses[i].To16() - if sa16 == nil { - return fmt.Errorf("invalid source address [%d] '%s'", i, m.SourceAddresses[i]) - } - copy(buf, sa16) - } - - return nil -} - -func decodeMLDv2MulticastListenerReport(data []byte, p gopacket.PacketBuilder) error { - m := &MLDv2MulticastListenerReportMessage{} - return decodingLayerDecoder(m, data, p) -} - -func decodeMLDv2MulticastListenerQuery(data []byte, p gopacket.PacketBuilder) error { - m := &MLDv2MulticastListenerQueryMessage{} - return decodingLayerDecoder(m, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/modbustcp.go b/vendor/github.com/google/gopacket/layers/modbustcp.go deleted file mode 100644 index bafbd7436c..0000000000 --- a/vendor/github.com/google/gopacket/layers/modbustcp.go +++ /dev/null @@ -1,150 +0,0 @@ -// Copyright 2018, The GoPacket Authors, All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. -// -//****************************************************************************** - -package layers - -import ( - "encoding/binary" - "errors" - "github.com/google/gopacket" -) - -//****************************************************************************** -// -// ModbusTCP Decoding Layer -// ------------------------------------------ -// This file provides a GoPacket decoding layer for ModbusTCP. -// -//****************************************************************************** - -const mbapRecordSizeInBytes int = 7 -const modbusPDUMinimumRecordSizeInBytes int = 2 -const modbusPDUMaximumRecordSizeInBytes int = 253 - -// ModbusProtocol type -type ModbusProtocol uint16 - -// ModbusProtocol known values. -const ( - ModbusProtocolModbus ModbusProtocol = 0 -) - -func (mp ModbusProtocol) String() string { - switch mp { - default: - return "Unknown" - case ModbusProtocolModbus: - return "Modbus" - } -} - -//****************************************************************************** - -// ModbusTCP Type -// -------- -// Type ModbusTCP implements the DecodingLayer interface. Each ModbusTCP object -// represents in a structured form the MODBUS Application Protocol header (MBAP) record present as the TCP -// payload in an ModbusTCP TCP packet. -// -type ModbusTCP struct { - BaseLayer // Stores the packet bytes and payload (Modbus PDU) bytes . - - TransactionIdentifier uint16 // Identification of a MODBUS Request/Response transaction - ProtocolIdentifier ModbusProtocol // It is used for intra-system multiplexing - Length uint16 // Number of following bytes (includes 1 byte for UnitIdentifier + Modbus data length - UnitIdentifier uint8 // Identification of a remote slave connected on a serial line or on other buses -} - -//****************************************************************************** - -// LayerType returns the layer type of the ModbusTCP object, which is LayerTypeModbusTCP. -func (d *ModbusTCP) LayerType() gopacket.LayerType { - return LayerTypeModbusTCP -} - -//****************************************************************************** - -// decodeModbusTCP analyses a byte slice and attempts to decode it as an ModbusTCP -// record of a TCP packet. -// -// If it succeeds, it loads p with information about the packet and returns nil. -// If it fails, it returns an error (non nil). -// -// This function is employed in layertypes.go to register the ModbusTCP layer. -func decodeModbusTCP(data []byte, p gopacket.PacketBuilder) error { - - // Attempt to decode the byte slice. - d := &ModbusTCP{} - err := d.DecodeFromBytes(data, p) - if err != nil { - return err - } - // If the decoding worked, add the layer to the packet and set it - // as the application layer too, if there isn't already one. - p.AddLayer(d) - p.SetApplicationLayer(d) - - return p.NextDecoder(d.NextLayerType()) - -} - -//****************************************************************************** - -// DecodeFromBytes analyses a byte slice and attempts to decode it as an ModbusTCP -// record of a TCP packet. -// -// Upon succeeds, it loads the ModbusTCP object with information about the packet -// and returns nil. -// Upon failure, it returns an error (non nil). -func (d *ModbusTCP) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - - // If the data block is too short to be a MBAP record, then return an error. - if len(data) < mbapRecordSizeInBytes+modbusPDUMinimumRecordSizeInBytes { - df.SetTruncated() - return errors.New("ModbusTCP packet too short") - } - - if len(data) > mbapRecordSizeInBytes+modbusPDUMaximumRecordSizeInBytes { - df.SetTruncated() - return errors.New("ModbusTCP packet too long") - } - - // ModbusTCP type embeds type BaseLayer which contains two fields: - // Contents is supposed to contain the bytes of the data at this level (MPBA). - // Payload is supposed to contain the payload of this level (PDU). - d.BaseLayer = BaseLayer{Contents: data[:mbapRecordSizeInBytes], Payload: data[mbapRecordSizeInBytes:len(data)]} - - // Extract the fields from the block of bytes. - // The fields can just be copied in big endian order. - d.TransactionIdentifier = binary.BigEndian.Uint16(data[:2]) - d.ProtocolIdentifier = ModbusProtocol(binary.BigEndian.Uint16(data[2:4])) - d.Length = binary.BigEndian.Uint16(data[4:6]) - - // Length should have the size of the payload plus one byte (size of UnitIdentifier) - if d.Length != uint16(len(d.BaseLayer.Payload)+1) { - df.SetTruncated() - return errors.New("ModbusTCP packet with wrong field value (Length)") - } - d.UnitIdentifier = uint8(data[6]) - - return nil -} - -//****************************************************************************** - -// NextLayerType returns the layer type of the ModbusTCP payload, which is LayerTypePayload. -func (d *ModbusTCP) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -//****************************************************************************** - -// Payload returns Modbus Protocol Data Unit (PDU) composed by Function Code and Data, it is carried within ModbusTCP packets -func (d *ModbusTCP) Payload() []byte { - return d.BaseLayer.Payload -} diff --git a/vendor/github.com/google/gopacket/layers/mpls.go b/vendor/github.com/google/gopacket/layers/mpls.go deleted file mode 100644 index 83079a09b7..0000000000 --- a/vendor/github.com/google/gopacket/layers/mpls.go +++ /dev/null @@ -1,87 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "github.com/google/gopacket" -) - -// MPLS is the MPLS packet header. -type MPLS struct { - BaseLayer - Label uint32 - TrafficClass uint8 - StackBottom bool - TTL uint8 -} - -// LayerType returns gopacket.LayerTypeMPLS. -func (m *MPLS) LayerType() gopacket.LayerType { return LayerTypeMPLS } - -// ProtocolGuessingDecoder attempts to guess the protocol of the bytes it's -// given, then decode the packet accordingly. Its algorithm for guessing is: -// If the packet starts with byte 0x45-0x4F: IPv4 -// If the packet starts with byte 0x60-0x6F: IPv6 -// Otherwise: Error -// See draft-hsmit-isis-aal5mux-00.txt for more detail on this approach. -type ProtocolGuessingDecoder struct{} - -func (ProtocolGuessingDecoder) Decode(data []byte, p gopacket.PacketBuilder) error { - switch data[0] { - // 0x40 | header_len, where header_len is at least 5. - case 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f: - return decodeIPv4(data, p) - // IPv6 can start with any byte whose first 4 bits are 0x6. - case 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f: - return decodeIPv6(data, p) - } - return errors.New("Unable to guess protocol of packet data") -} - -// MPLSPayloadDecoder is the decoder used to data encapsulated by each MPLS -// layer. MPLS contains no type information, so we have to explicitly decide -// which decoder to use. This is initially set to ProtocolGuessingDecoder, our -// simple attempt at guessing protocols based on the first few bytes of data -// available to us. However, if you know that in your environment MPLS always -// encapsulates a specific protocol, you may reset this. -var MPLSPayloadDecoder gopacket.Decoder = ProtocolGuessingDecoder{} - -func decodeMPLS(data []byte, p gopacket.PacketBuilder) error { - decoded := binary.BigEndian.Uint32(data[:4]) - mpls := &MPLS{ - Label: decoded >> 12, - TrafficClass: uint8(decoded>>9) & 0x7, - StackBottom: decoded&0x100 != 0, - TTL: uint8(decoded), - BaseLayer: BaseLayer{data[:4], data[4:]}, - } - p.AddLayer(mpls) - if mpls.StackBottom { - return p.NextDecoder(MPLSPayloadDecoder) - } - return p.NextDecoder(gopacket.DecodeFunc(decodeMPLS)) -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (m *MPLS) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - bytes, err := b.PrependBytes(4) - if err != nil { - return err - } - encoded := m.Label << 12 - encoded |= uint32(m.TrafficClass) << 9 - encoded |= uint32(m.TTL) - if m.StackBottom { - encoded |= 0x100 - } - binary.BigEndian.PutUint32(bytes, encoded) - return nil -} diff --git a/vendor/github.com/google/gopacket/layers/ndp.go b/vendor/github.com/google/gopacket/layers/ndp.go deleted file mode 100644 index f7ca1b26b7..0000000000 --- a/vendor/github.com/google/gopacket/layers/ndp.go +++ /dev/null @@ -1,611 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -// Enum types courtesy of... -// http://anonsvn.wireshark.org/wireshark/trunk/epan/dissectors/packet-ndp.c - -package layers - -import ( - "fmt" - "github.com/google/gopacket" - "net" -) - -type NDPChassisType uint8 - -// Nortel Chassis Types -const ( - NDPChassisother NDPChassisType = 1 - NDPChassis3000 NDPChassisType = 2 - NDPChassis3030 NDPChassisType = 3 - NDPChassis2310 NDPChassisType = 4 - NDPChassis2810 NDPChassisType = 5 - NDPChassis2912 NDPChassisType = 6 - NDPChassis2914 NDPChassisType = 7 - NDPChassis271x NDPChassisType = 8 - NDPChassis2813 NDPChassisType = 9 - NDPChassis2814 NDPChassisType = 10 - NDPChassis2915 NDPChassisType = 11 - NDPChassis5000 NDPChassisType = 12 - NDPChassis2813SA NDPChassisType = 13 - NDPChassis2814SA NDPChassisType = 14 - NDPChassis810M NDPChassisType = 15 - NDPChassisEthercell NDPChassisType = 16 - NDPChassis5005 NDPChassisType = 17 - NDPChassisAlcatelEWC NDPChassisType = 18 - NDPChassis2715SA NDPChassisType = 20 - NDPChassis2486 NDPChassisType = 21 - NDPChassis28000series NDPChassisType = 22 - NDPChassis23000series NDPChassisType = 23 - NDPChassis5DN00xseries NDPChassisType = 24 - NDPChassisBayStackEthernet NDPChassisType = 25 - NDPChassis23100series NDPChassisType = 26 - NDPChassis100BaseTHub NDPChassisType = 27 - NDPChassis3000FastEthernet NDPChassisType = 28 - NDPChassisOrionSwitch NDPChassisType = 29 - NDPChassisDDS NDPChassisType = 31 - NDPChassisCentillion6slot NDPChassisType = 32 - NDPChassisCentillion12slot NDPChassisType = 33 - NDPChassisCentillion1slot NDPChassisType = 34 - NDPChassisBayStack301 NDPChassisType = 35 - NDPChassisBayStackTokenRingHub NDPChassisType = 36 - NDPChassisFVCMultimediaSwitch NDPChassisType = 37 - NDPChassisSwitchNode NDPChassisType = 38 - NDPChassisBayStack302Switch NDPChassisType = 39 - NDPChassisBayStack350Switch NDPChassisType = 40 - NDPChassisBayStack150EthernetHub NDPChassisType = 41 - NDPChassisCentillion50NSwitch NDPChassisType = 42 - NDPChassisCentillion50TSwitch NDPChassisType = 43 - NDPChassisBayStack303304Switches NDPChassisType = 44 - NDPChassisBayStack200EthernetHub NDPChassisType = 45 - NDPChassisBayStack25010100EthernetHub NDPChassisType = 46 - NDPChassisBayStack450101001000Switches NDPChassisType = 48 - NDPChassisBayStack41010100Switches NDPChassisType = 49 - NDPChassisPassport1200L3Switch NDPChassisType = 50 - NDPChassisPassport1250L3Switch NDPChassisType = 51 - NDPChassisPassport1100L3Switch NDPChassisType = 52 - NDPChassisPassport1150L3Switch NDPChassisType = 53 - NDPChassisPassport1050L3Switch NDPChassisType = 54 - NDPChassisPassport1051L3Switch NDPChassisType = 55 - NDPChassisPassport8610L3Switch NDPChassisType = 56 - NDPChassisPassport8606L3Switch NDPChassisType = 57 - NDPChassisPassport8010 NDPChassisType = 58 - NDPChassisPassport8006 NDPChassisType = 59 - NDPChassisBayStack670wirelessaccesspoint NDPChassisType = 60 - NDPChassisPassport740 NDPChassisType = 61 - NDPChassisPassport750 NDPChassisType = 62 - NDPChassisPassport790 NDPChassisType = 63 - NDPChassisBusinessPolicySwitch200010100Switches NDPChassisType = 64 - NDPChassisPassport8110L2Switch NDPChassisType = 65 - NDPChassisPassport8106L2Switch NDPChassisType = 66 - NDPChassisBayStack3580GigSwitch NDPChassisType = 67 - NDPChassisBayStack10PowerSupplyUnit NDPChassisType = 68 - NDPChassisBayStack42010100Switch NDPChassisType = 69 - NDPChassisOPTeraMetro1200EthernetServiceModule NDPChassisType = 70 - NDPChassisOPTera8010co NDPChassisType = 71 - NDPChassisOPTera8610coL3Switch NDPChassisType = 72 - NDPChassisOPTera8110coL2Switch NDPChassisType = 73 - NDPChassisOPTera8003 NDPChassisType = 74 - NDPChassisOPTera8603L3Switch NDPChassisType = 75 - NDPChassisOPTera8103L2Switch NDPChassisType = 76 - NDPChassisBayStack380101001000Switch NDPChassisType = 77 - NDPChassisEthernetSwitch47048T NDPChassisType = 78 - NDPChassisOPTeraMetro1450EthernetServiceModule NDPChassisType = 79 - NDPChassisOPTeraMetro1400EthernetServiceModule NDPChassisType = 80 - NDPChassisAlteonSwitchFamily NDPChassisType = 81 - NDPChassisEthernetSwitch46024TPWR NDPChassisType = 82 - NDPChassisOPTeraMetro8010OPML2Switch NDPChassisType = 83 - NDPChassisOPTeraMetro8010coOPML2Switch NDPChassisType = 84 - NDPChassisOPTeraMetro8006OPML2Switch NDPChassisType = 85 - NDPChassisOPTeraMetro8003OPML2Switch NDPChassisType = 86 - NDPChassisAlteon180e NDPChassisType = 87 - NDPChassisAlteonAD3 NDPChassisType = 88 - NDPChassisAlteon184 NDPChassisType = 89 - NDPChassisAlteonAD4 NDPChassisType = 90 - NDPChassisPassport1424L3Switch NDPChassisType = 91 - NDPChassisPassport1648L3Switch NDPChassisType = 92 - NDPChassisPassport1612L3Switch NDPChassisType = 93 - NDPChassisPassport1624L3Switch NDPChassisType = 94 - NDPChassisBayStack38024FFiber1000Switch NDPChassisType = 95 - NDPChassisEthernetRoutingSwitch551024T NDPChassisType = 96 - NDPChassisEthernetRoutingSwitch551048T NDPChassisType = 97 - NDPChassisEthernetSwitch47024T NDPChassisType = 98 - NDPChassisNortelNetworksWirelessLANAccessPoint2220 NDPChassisType = 99 - NDPChassisPassportRBS2402L3Switch NDPChassisType = 100 - NDPChassisAlteonApplicationSwitch2424 NDPChassisType = 101 - NDPChassisAlteonApplicationSwitch2224 NDPChassisType = 102 - NDPChassisAlteonApplicationSwitch2208 NDPChassisType = 103 - NDPChassisAlteonApplicationSwitch2216 NDPChassisType = 104 - NDPChassisAlteonApplicationSwitch3408 NDPChassisType = 105 - NDPChassisAlteonApplicationSwitch3416 NDPChassisType = 106 - NDPChassisNortelNetworksWirelessLANSecuritySwitch2250 NDPChassisType = 107 - NDPChassisEthernetSwitch42548T NDPChassisType = 108 - NDPChassisEthernetSwitch42524T NDPChassisType = 109 - NDPChassisNortelNetworksWirelessLANAccessPoint2221 NDPChassisType = 110 - NDPChassisNortelMetroEthernetServiceUnit24TSPFswitch NDPChassisType = 111 - NDPChassisNortelMetroEthernetServiceUnit24TLXDCswitch NDPChassisType = 112 - NDPChassisPassport830010slotchassis NDPChassisType = 113 - NDPChassisPassport83006slotchassis NDPChassisType = 114 - NDPChassisEthernetRoutingSwitch552024TPWR NDPChassisType = 115 - NDPChassisEthernetRoutingSwitch552048TPWR NDPChassisType = 116 - NDPChassisNortelNetworksVPNGateway3050 NDPChassisType = 117 - NDPChassisAlteonSSL31010100 NDPChassisType = 118 - NDPChassisAlteonSSL31010100Fiber NDPChassisType = 119 - NDPChassisAlteonSSL31010100FIPS NDPChassisType = 120 - NDPChassisAlteonSSL410101001000 NDPChassisType = 121 - NDPChassisAlteonSSL410101001000Fiber NDPChassisType = 122 - NDPChassisAlteonApplicationSwitch2424SSL NDPChassisType = 123 - NDPChassisEthernetSwitch32524T NDPChassisType = 124 - NDPChassisEthernetSwitch32524G NDPChassisType = 125 - NDPChassisNortelNetworksWirelessLANAccessPoint2225 NDPChassisType = 126 - NDPChassisNortelNetworksWirelessLANSecuritySwitch2270 NDPChassisType = 127 - NDPChassis24portEthernetSwitch47024TPWR NDPChassisType = 128 - NDPChassis48portEthernetSwitch47048TPWR NDPChassisType = 129 - NDPChassisEthernetRoutingSwitch553024TFD NDPChassisType = 130 - NDPChassisEthernetSwitch351024T NDPChassisType = 131 - NDPChassisNortelMetroEthernetServiceUnit12GACL3Switch NDPChassisType = 132 - NDPChassisNortelMetroEthernetServiceUnit12GDCL3Switch NDPChassisType = 133 - NDPChassisNortelSecureAccessSwitch NDPChassisType = 134 - NDPChassisNortelNetworksVPNGateway3070 NDPChassisType = 135 - NDPChassisOPTeraMetro3500 NDPChassisType = 136 - NDPChassisSMBBES101024T NDPChassisType = 137 - NDPChassisSMBBES101048T NDPChassisType = 138 - NDPChassisSMBBES102024TPWR NDPChassisType = 139 - NDPChassisSMBBES102048TPWR NDPChassisType = 140 - NDPChassisSMBBES201024T NDPChassisType = 141 - NDPChassisSMBBES201048T NDPChassisType = 142 - NDPChassisSMBBES202024TPWR NDPChassisType = 143 - NDPChassisSMBBES202048TPWR NDPChassisType = 144 - NDPChassisSMBBES11024T NDPChassisType = 145 - NDPChassisSMBBES11048T NDPChassisType = 146 - NDPChassisSMBBES12024TPWR NDPChassisType = 147 - NDPChassisSMBBES12048TPWR NDPChassisType = 148 - NDPChassisSMBBES21024T NDPChassisType = 149 - NDPChassisSMBBES21048T NDPChassisType = 150 - NDPChassisSMBBES22024TPWR NDPChassisType = 151 - NDPChassisSMBBES22048TPWR NDPChassisType = 152 - NDPChassisOME6500 NDPChassisType = 153 - NDPChassisEthernetRoutingSwitch4548GT NDPChassisType = 154 - NDPChassisEthernetRoutingSwitch4548GTPWR NDPChassisType = 155 - NDPChassisEthernetRoutingSwitch4550T NDPChassisType = 156 - NDPChassisEthernetRoutingSwitch4550TPWR NDPChassisType = 157 - NDPChassisEthernetRoutingSwitch4526FX NDPChassisType = 158 - NDPChassisEthernetRoutingSwitch250026T NDPChassisType = 159 - NDPChassisEthernetRoutingSwitch250026TPWR NDPChassisType = 160 - NDPChassisEthernetRoutingSwitch250050T NDPChassisType = 161 - NDPChassisEthernetRoutingSwitch250050TPWR NDPChassisType = 162 -) - -type NDPBackplaneType uint8 - -// Nortel Backplane Types -const ( - NDPBackplaneOther NDPBackplaneType = 1 - NDPBackplaneEthernet NDPBackplaneType = 2 - NDPBackplaneEthernetTokenring NDPBackplaneType = 3 - NDPBackplaneEthernetFDDI NDPBackplaneType = 4 - NDPBackplaneEthernetTokenringFDDI NDPBackplaneType = 5 - NDPBackplaneEthernetTokenringRedundantPower NDPBackplaneType = 6 - NDPBackplaneEthernetTokenringFDDIRedundantPower NDPBackplaneType = 7 - NDPBackplaneTokenRing NDPBackplaneType = 8 - NDPBackplaneEthernetTokenringFastEthernet NDPBackplaneType = 9 - NDPBackplaneEthernetFastEthernet NDPBackplaneType = 10 - NDPBackplaneEthernetTokenringFastEthernetRedundantPower NDPBackplaneType = 11 - NDPBackplaneEthernetFastEthernetGigabitEthernet NDPBackplaneType = 12 -) - -type NDPState uint8 - -// Device State -const ( - NDPStateTopology NDPState = 1 - NDPStateHeartbeat NDPState = 2 - NDPStateNew NDPState = 3 -) - -// NortelDiscovery is a packet layer containing the Nortel Discovery Protocol. -type NortelDiscovery struct { - BaseLayer - IPAddress net.IP - SegmentID []byte - Chassis NDPChassisType - Backplane NDPBackplaneType - State NDPState - NumLinks uint8 -} - -// LayerType returns gopacket.LayerTypeNortelDiscovery. -func (c *NortelDiscovery) LayerType() gopacket.LayerType { - return LayerTypeNortelDiscovery -} - -func decodeNortelDiscovery(data []byte, p gopacket.PacketBuilder) error { - c := &NortelDiscovery{} - if len(data) < 11 { - return fmt.Errorf("Invalid NortelDiscovery packet length %d", len(data)) - } - c.IPAddress = data[0:4] - c.SegmentID = data[4:7] - c.Chassis = NDPChassisType(data[7]) - c.Backplane = NDPBackplaneType(data[8]) - c.State = NDPState(data[9]) - c.NumLinks = uint8(data[10]) - p.AddLayer(c) - return nil -} - -func (t NDPChassisType) String() (s string) { - switch t { - case NDPChassisother: - s = "other" - case NDPChassis3000: - s = "3000" - case NDPChassis3030: - s = "3030" - case NDPChassis2310: - s = "2310" - case NDPChassis2810: - s = "2810" - case NDPChassis2912: - s = "2912" - case NDPChassis2914: - s = "2914" - case NDPChassis271x: - s = "271x" - case NDPChassis2813: - s = "2813" - case NDPChassis2814: - s = "2814" - case NDPChassis2915: - s = "2915" - case NDPChassis5000: - s = "5000" - case NDPChassis2813SA: - s = "2813SA" - case NDPChassis2814SA: - s = "2814SA" - case NDPChassis810M: - s = "810M" - case NDPChassisEthercell: - s = "Ethercell" - case NDPChassis5005: - s = "5005" - case NDPChassisAlcatelEWC: - s = "Alcatel Ethernet workgroup conc." - case NDPChassis2715SA: - s = "2715SA" - case NDPChassis2486: - s = "2486" - case NDPChassis28000series: - s = "28000 series" - case NDPChassis23000series: - s = "23000 series" - case NDPChassis5DN00xseries: - s = "5DN00x series" - case NDPChassisBayStackEthernet: - s = "BayStack Ethernet" - case NDPChassis23100series: - s = "23100 series" - case NDPChassis100BaseTHub: - s = "100Base-T Hub" - case NDPChassis3000FastEthernet: - s = "3000 Fast Ethernet" - case NDPChassisOrionSwitch: - s = "Orion switch" - case NDPChassisDDS: - s = "DDS" - case NDPChassisCentillion6slot: - s = "Centillion (6 slot)" - case NDPChassisCentillion12slot: - s = "Centillion (12 slot)" - case NDPChassisCentillion1slot: - s = "Centillion (1 slot)" - case NDPChassisBayStack301: - s = "BayStack 301" - case NDPChassisBayStackTokenRingHub: - s = "BayStack TokenRing Hub" - case NDPChassisFVCMultimediaSwitch: - s = "FVC Multimedia Switch" - case NDPChassisSwitchNode: - s = "Switch Node" - case NDPChassisBayStack302Switch: - s = "BayStack 302 Switch" - case NDPChassisBayStack350Switch: - s = "BayStack 350 Switch" - case NDPChassisBayStack150EthernetHub: - s = "BayStack 150 Ethernet Hub" - case NDPChassisCentillion50NSwitch: - s = "Centillion 50N switch" - case NDPChassisCentillion50TSwitch: - s = "Centillion 50T switch" - case NDPChassisBayStack303304Switches: - s = "BayStack 303 and 304 Switches" - case NDPChassisBayStack200EthernetHub: - s = "BayStack 200 Ethernet Hub" - case NDPChassisBayStack25010100EthernetHub: - s = "BayStack 250 10/100 Ethernet Hub" - case NDPChassisBayStack450101001000Switches: - s = "BayStack 450 10/100/1000 Switches" - case NDPChassisBayStack41010100Switches: - s = "BayStack 410 10/100 Switches" - case NDPChassisPassport1200L3Switch: - s = "Passport 1200 L3 Switch" - case NDPChassisPassport1250L3Switch: - s = "Passport 1250 L3 Switch" - case NDPChassisPassport1100L3Switch: - s = "Passport 1100 L3 Switch" - case NDPChassisPassport1150L3Switch: - s = "Passport 1150 L3 Switch" - case NDPChassisPassport1050L3Switch: - s = "Passport 1050 L3 Switch" - case NDPChassisPassport1051L3Switch: - s = "Passport 1051 L3 Switch" - case NDPChassisPassport8610L3Switch: - s = "Passport 8610 L3 Switch" - case NDPChassisPassport8606L3Switch: - s = "Passport 8606 L3 Switch" - case NDPChassisPassport8010: - s = "Passport 8010" - case NDPChassisPassport8006: - s = "Passport 8006" - case NDPChassisBayStack670wirelessaccesspoint: - s = "BayStack 670 wireless access point" - case NDPChassisPassport740: - s = "Passport 740" - case NDPChassisPassport750: - s = "Passport 750" - case NDPChassisPassport790: - s = "Passport 790" - case NDPChassisBusinessPolicySwitch200010100Switches: - s = "Business Policy Switch 2000 10/100 Switches" - case NDPChassisPassport8110L2Switch: - s = "Passport 8110 L2 Switch" - case NDPChassisPassport8106L2Switch: - s = "Passport 8106 L2 Switch" - case NDPChassisBayStack3580GigSwitch: - s = "BayStack 3580 Gig Switch" - case NDPChassisBayStack10PowerSupplyUnit: - s = "BayStack 10 Power Supply Unit" - case NDPChassisBayStack42010100Switch: - s = "BayStack 420 10/100 Switch" - case NDPChassisOPTeraMetro1200EthernetServiceModule: - s = "OPTera Metro 1200 Ethernet Service Module" - case NDPChassisOPTera8010co: - s = "OPTera 8010co" - case NDPChassisOPTera8610coL3Switch: - s = "OPTera 8610co L3 switch" - case NDPChassisOPTera8110coL2Switch: - s = "OPTera 8110co L2 switch" - case NDPChassisOPTera8003: - s = "OPTera 8003" - case NDPChassisOPTera8603L3Switch: - s = "OPTera 8603 L3 switch" - case NDPChassisOPTera8103L2Switch: - s = "OPTera 8103 L2 switch" - case NDPChassisBayStack380101001000Switch: - s = "BayStack 380 10/100/1000 Switch" - case NDPChassisEthernetSwitch47048T: - s = "Ethernet Switch 470-48T" - case NDPChassisOPTeraMetro1450EthernetServiceModule: - s = "OPTera Metro 1450 Ethernet Service Module" - case NDPChassisOPTeraMetro1400EthernetServiceModule: - s = "OPTera Metro 1400 Ethernet Service Module" - case NDPChassisAlteonSwitchFamily: - s = "Alteon Switch Family" - case NDPChassisEthernetSwitch46024TPWR: - s = "Ethernet Switch 460-24T-PWR" - case NDPChassisOPTeraMetro8010OPML2Switch: - s = "OPTera Metro 8010 OPM L2 Switch" - case NDPChassisOPTeraMetro8010coOPML2Switch: - s = "OPTera Metro 8010co OPM L2 Switch" - case NDPChassisOPTeraMetro8006OPML2Switch: - s = "OPTera Metro 8006 OPM L2 Switch" - case NDPChassisOPTeraMetro8003OPML2Switch: - s = "OPTera Metro 8003 OPM L2 Switch" - case NDPChassisAlteon180e: - s = "Alteon 180e" - case NDPChassisAlteonAD3: - s = "Alteon AD3" - case NDPChassisAlteon184: - s = "Alteon 184" - case NDPChassisAlteonAD4: - s = "Alteon AD4" - case NDPChassisPassport1424L3Switch: - s = "Passport 1424 L3 switch" - case NDPChassisPassport1648L3Switch: - s = "Passport 1648 L3 switch" - case NDPChassisPassport1612L3Switch: - s = "Passport 1612 L3 switch" - case NDPChassisPassport1624L3Switch: - s = "Passport 1624 L3 switch" - case NDPChassisBayStack38024FFiber1000Switch: - s = "BayStack 380-24F Fiber 1000 Switch" - case NDPChassisEthernetRoutingSwitch551024T: - s = "Ethernet Routing Switch 5510-24T" - case NDPChassisEthernetRoutingSwitch551048T: - s = "Ethernet Routing Switch 5510-48T" - case NDPChassisEthernetSwitch47024T: - s = "Ethernet Switch 470-24T" - case NDPChassisNortelNetworksWirelessLANAccessPoint2220: - s = "Nortel Networks Wireless LAN Access Point 2220" - case NDPChassisPassportRBS2402L3Switch: - s = "Passport RBS 2402 L3 switch" - case NDPChassisAlteonApplicationSwitch2424: - s = "Alteon Application Switch 2424" - case NDPChassisAlteonApplicationSwitch2224: - s = "Alteon Application Switch 2224" - case NDPChassisAlteonApplicationSwitch2208: - s = "Alteon Application Switch 2208" - case NDPChassisAlteonApplicationSwitch2216: - s = "Alteon Application Switch 2216" - case NDPChassisAlteonApplicationSwitch3408: - s = "Alteon Application Switch 3408" - case NDPChassisAlteonApplicationSwitch3416: - s = "Alteon Application Switch 3416" - case NDPChassisNortelNetworksWirelessLANSecuritySwitch2250: - s = "Nortel Networks Wireless LAN SecuritySwitch 2250" - case NDPChassisEthernetSwitch42548T: - s = "Ethernet Switch 425-48T" - case NDPChassisEthernetSwitch42524T: - s = "Ethernet Switch 425-24T" - case NDPChassisNortelNetworksWirelessLANAccessPoint2221: - s = "Nortel Networks Wireless LAN Access Point 2221" - case NDPChassisNortelMetroEthernetServiceUnit24TSPFswitch: - s = "Nortel Metro Ethernet Service Unit 24-T SPF switch" - case NDPChassisNortelMetroEthernetServiceUnit24TLXDCswitch: - s = " Nortel Metro Ethernet Service Unit 24-T LX DC switch" - case NDPChassisPassport830010slotchassis: - s = "Passport 8300 10-slot chassis" - case NDPChassisPassport83006slotchassis: - s = "Passport 8300 6-slot chassis" - case NDPChassisEthernetRoutingSwitch552024TPWR: - s = "Ethernet Routing Switch 5520-24T-PWR" - case NDPChassisEthernetRoutingSwitch552048TPWR: - s = "Ethernet Routing Switch 5520-48T-PWR" - case NDPChassisNortelNetworksVPNGateway3050: - s = "Nortel Networks VPN Gateway 3050" - case NDPChassisAlteonSSL31010100: - s = "Alteon SSL 310 10/100" - case NDPChassisAlteonSSL31010100Fiber: - s = "Alteon SSL 310 10/100 Fiber" - case NDPChassisAlteonSSL31010100FIPS: - s = "Alteon SSL 310 10/100 FIPS" - case NDPChassisAlteonSSL410101001000: - s = "Alteon SSL 410 10/100/1000" - case NDPChassisAlteonSSL410101001000Fiber: - s = "Alteon SSL 410 10/100/1000 Fiber" - case NDPChassisAlteonApplicationSwitch2424SSL: - s = "Alteon Application Switch 2424-SSL" - case NDPChassisEthernetSwitch32524T: - s = "Ethernet Switch 325-24T" - case NDPChassisEthernetSwitch32524G: - s = "Ethernet Switch 325-24G" - case NDPChassisNortelNetworksWirelessLANAccessPoint2225: - s = "Nortel Networks Wireless LAN Access Point 2225" - case NDPChassisNortelNetworksWirelessLANSecuritySwitch2270: - s = "Nortel Networks Wireless LAN SecuritySwitch 2270" - case NDPChassis24portEthernetSwitch47024TPWR: - s = "24-port Ethernet Switch 470-24T-PWR" - case NDPChassis48portEthernetSwitch47048TPWR: - s = "48-port Ethernet Switch 470-48T-PWR" - case NDPChassisEthernetRoutingSwitch553024TFD: - s = "Ethernet Routing Switch 5530-24TFD" - case NDPChassisEthernetSwitch351024T: - s = "Ethernet Switch 3510-24T" - case NDPChassisNortelMetroEthernetServiceUnit12GACL3Switch: - s = "Nortel Metro Ethernet Service Unit 12G AC L3 switch" - case NDPChassisNortelMetroEthernetServiceUnit12GDCL3Switch: - s = "Nortel Metro Ethernet Service Unit 12G DC L3 switch" - case NDPChassisNortelSecureAccessSwitch: - s = "Nortel Secure Access Switch" - case NDPChassisNortelNetworksVPNGateway3070: - s = "Nortel Networks VPN Gateway 3070" - case NDPChassisOPTeraMetro3500: - s = "OPTera Metro 3500" - case NDPChassisSMBBES101024T: - s = "SMB BES 1010 24T" - case NDPChassisSMBBES101048T: - s = "SMB BES 1010 48T" - case NDPChassisSMBBES102024TPWR: - s = "SMB BES 1020 24T PWR" - case NDPChassisSMBBES102048TPWR: - s = "SMB BES 1020 48T PWR" - case NDPChassisSMBBES201024T: - s = "SMB BES 2010 24T" - case NDPChassisSMBBES201048T: - s = "SMB BES 2010 48T" - case NDPChassisSMBBES202024TPWR: - s = "SMB BES 2020 24T PWR" - case NDPChassisSMBBES202048TPWR: - s = "SMB BES 2020 48T PWR" - case NDPChassisSMBBES11024T: - s = "SMB BES 110 24T" - case NDPChassisSMBBES11048T: - s = "SMB BES 110 48T" - case NDPChassisSMBBES12024TPWR: - s = "SMB BES 120 24T PWR" - case NDPChassisSMBBES12048TPWR: - s = "SMB BES 120 48T PWR" - case NDPChassisSMBBES21024T: - s = "SMB BES 210 24T" - case NDPChassisSMBBES21048T: - s = "SMB BES 210 48T" - case NDPChassisSMBBES22024TPWR: - s = "SMB BES 220 24T PWR" - case NDPChassisSMBBES22048TPWR: - s = "SMB BES 220 48T PWR" - case NDPChassisOME6500: - s = "OME 6500" - case NDPChassisEthernetRoutingSwitch4548GT: - s = "Ethernet Routing Switch 4548GT" - case NDPChassisEthernetRoutingSwitch4548GTPWR: - s = "Ethernet Routing Switch 4548GT-PWR" - case NDPChassisEthernetRoutingSwitch4550T: - s = "Ethernet Routing Switch 4550T" - case NDPChassisEthernetRoutingSwitch4550TPWR: - s = "Ethernet Routing Switch 4550T-PWR" - case NDPChassisEthernetRoutingSwitch4526FX: - s = "Ethernet Routing Switch 4526FX" - case NDPChassisEthernetRoutingSwitch250026T: - s = "Ethernet Routing Switch 2500-26T" - case NDPChassisEthernetRoutingSwitch250026TPWR: - s = "Ethernet Routing Switch 2500-26T-PWR" - case NDPChassisEthernetRoutingSwitch250050T: - s = "Ethernet Routing Switch 2500-50T" - case NDPChassisEthernetRoutingSwitch250050TPWR: - s = "Ethernet Routing Switch 2500-50T-PWR" - default: - s = "Unknown" - } - return -} - -func (t NDPBackplaneType) String() (s string) { - switch t { - case NDPBackplaneOther: - s = "Other" - case NDPBackplaneEthernet: - s = "Ethernet" - case NDPBackplaneEthernetTokenring: - s = "Ethernet and Tokenring" - case NDPBackplaneEthernetFDDI: - s = "Ethernet and FDDI" - case NDPBackplaneEthernetTokenringFDDI: - s = "Ethernet, Tokenring and FDDI" - case NDPBackplaneEthernetTokenringRedundantPower: - s = "Ethernet and Tokenring with redundant power" - case NDPBackplaneEthernetTokenringFDDIRedundantPower: - s = "Ethernet, Tokenring, FDDI with redundant power" - case NDPBackplaneTokenRing: - s = "Token Ring" - case NDPBackplaneEthernetTokenringFastEthernet: - s = "Ethernet, Tokenring and Fast Ethernet" - case NDPBackplaneEthernetFastEthernet: - s = "Ethernet and Fast Ethernet" - case NDPBackplaneEthernetTokenringFastEthernetRedundantPower: - s = "Ethernet, Tokenring, Fast Ethernet with redundant power" - case NDPBackplaneEthernetFastEthernetGigabitEthernet: - s = "Ethernet, Fast Ethernet and Gigabit Ethernet" - default: - s = "Unknown" - } - return -} - -func (t NDPState) String() (s string) { - switch t { - case NDPStateTopology: - s = "Topology Change" - case NDPStateHeartbeat: - s = "Heartbeat" - case NDPStateNew: - s = "New" - default: - s = "Unknown" - } - return -} diff --git a/vendor/github.com/google/gopacket/layers/ntp.go b/vendor/github.com/google/gopacket/layers/ntp.go deleted file mode 100644 index 33c15b3b39..0000000000 --- a/vendor/github.com/google/gopacket/layers/ntp.go +++ /dev/null @@ -1,416 +0,0 @@ -// Copyright 2016 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. -// -//****************************************************************************** - -package layers - -import ( - "encoding/binary" - "errors" - - "github.com/google/gopacket" -) - -//****************************************************************************** -// -// Network Time Protocol (NTP) Decoding Layer -// ------------------------------------------ -// This file provides a GoPacket decoding layer for NTP. -// -//****************************************************************************** -// -// About The Network Time Protocol (NTP) -// ------------------------------------- -// NTP is a protocol that enables computers on the internet to set their -// clocks to the correct time (or to a time that is acceptably close to the -// correct time). NTP runs on top of UDP. -// -// There have been a series of versions of the NTP protocol. The latest -// version is V4 and is specified in RFC 5905: -// http://www.ietf.org/rfc/rfc5905.txt -// -//****************************************************************************** -// -// References -// ---------- -// -// Wikipedia's NTP entry: -// https://en.wikipedia.org/wiki/Network_Time_Protocol -// This is the best place to get an overview of NTP. -// -// Network Time Protocol Home Website: -// http://www.ntp.org/ -// This appears to be the official website of NTP. -// -// List of current NTP Protocol RFCs: -// http://www.ntp.org/rfc.html -// -// RFC 958: "Network Time Protocol (NTP)" (1985) -// https://tools.ietf.org/html/rfc958 -// This is the original NTP specification. -// -// RFC 1305: "Network Time Protocol (Version 3) Specification, Implementation and Analysis" (1992) -// https://tools.ietf.org/html/rfc1305 -// The protocol was updated in 1992 yielding NTP V3. -// -// RFC 5905: "Network Time Protocol Version 4: Protocol and Algorithms Specification" (2010) -// https://www.ietf.org/rfc/rfc5905.txt -// The protocol was updated in 2010 yielding NTP V4. -// V4 is backwards compatible with all previous versions of NTP. -// -// RFC 5906: "Network Time Protocol Version 4: Autokey Specification" -// https://tools.ietf.org/html/rfc5906 -// This document addresses the security of the NTP protocol -// and is probably not relevant to this package. -// -// RFC 5907: "Definitions of Managed Objects for Network Time Protocol Version 4 (NTPv4)" -// https://tools.ietf.org/html/rfc5907 -// This document addresses the management of NTP servers and -// is probably not relevant to this package. -// -// RFC 5908: "Network Time Protocol (NTP) Server Option for DHCPv6" -// https://tools.ietf.org/html/rfc5908 -// This document addresses the use of NTP in DHCPv6 and is -// probably not relevant to this package. -// -// "Let's make a NTP Client in C" -// https://lettier.github.io/posts/2016-04-26-lets-make-a-ntp-client-in-c.html -// This web page contains useful information about the details of NTP, -// including an NTP record struture in C, and C code. -// -// "NTP Packet Header (NTP Reference Implementation) (Computer Network Time Synchronization)" -// http://what-when-how.com/computer-network-time-synchronization/ -// ntp-packet-header-ntp-reference-implementation-computer-network-time-synchronization/ -// This web page contains useful information on the details of NTP. -// -// "Technical information - NTP Data Packet" -// https://www.meinbergglobal.com/english/info/ntp-packet.htm -// This page has a helpful diagram of an NTP V4 packet. -// -//****************************************************************************** -// -// Obsolete References -// ------------------- -// -// RFC 1119: "RFC-1119 "Network Time Protocol (Version 2) Specification and Implementation" (1989) -// https://tools.ietf.org/html/rfc1119 -// Version 2 was drafted in 1989. -// It is unclear whether V2 was ever implememented or whether the -// ideas ended up in V3 (which was implemented in 1992). -// -// RFC 1361: "Simple Network Time Protocol (SNTP)" -// https://tools.ietf.org/html/rfc1361 -// This document is obsoleted by RFC 1769 and is included only for completeness. -// -// RFC 1769: "Simple Network Time Protocol (SNTP)" -// https://tools.ietf.org/html/rfc1769 -// This document is obsoleted by RFC 2030 and RFC 4330 and is included only for completeness. -// -// RFC 2030: "Simple Network Time Protocol (SNTP) Version 4 for IPv4, IPv6 and OSI" -// https://tools.ietf.org/html/rfc2030 -// This document is obsoleted by RFC 4330 and is included only for completeness. -// -// RFC 4330: "Simple Network Time Protocol (SNTP) Version 4 for IPv4, IPv6 and OSI" -// https://tools.ietf.org/html/rfc4330 -// This document is obsoleted by RFC 5905 and is included only for completeness. -// -//****************************************************************************** -// -// Endian And Bit Numbering Issues -// ------------------------------- -// -// Endian and bit numbering issues can be confusing. Here is some -// clarification: -// -// ENDIAN: Values are sent big endian. -// https://en.wikipedia.org/wiki/Endianness -// -// BIT NUMBERING: Bits are numbered 0 upwards from the most significant -// bit to the least significant bit. This means that if there is a 32-bit -// value, the most significant bit is called bit 0 and the least -// significant bit is called bit 31. -// -// See RFC 791 Appendix B for more discussion. -// -//****************************************************************************** -// -// NTP V3 and V4 Packet Format -// --------------------------- -// NTP packets are UDP packets whose payload contains an NTP record. -// -// The NTP RFC defines the format of the NTP record. -// -// There have been four versions of the protocol: -// -// V1 in 1985 -// V2 in 1989 -// V3 in 1992 -// V4 in 2010 -// -// It is clear that V1 and V2 are obsolete, and there is no need to -// cater for these formats. -// -// V3 and V4 essentially use the same format, with V4 adding some optional -// fields on the end. So this package supports the V3 and V4 formats. -// -// The current version of NTP (NTP V4)'s RFC (V4 - RFC 5905) contains -// the following diagram for the NTP record format: - -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// |LI | VN |Mode | Stratum | Poll | Precision | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Root Delay | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Root Dispersion | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Reference ID | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// + Reference Timestamp (64) + -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// + Origin Timestamp (64) + -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// + Receive Timestamp (64) + -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// + Transmit Timestamp (64) + -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Extension Field 1 (variable) . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Extension Field 2 (variable) . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Key Identifier | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// | dgst (128) | -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// From http://www.ietf.org/rfc/rfc5905.txt -// -// The fields "Extension Field 1 (variable)" and later are optional fields, -// and so we can set a minimum NTP record size of 48 bytes. -// -const ntpMinimumRecordSizeInBytes int = 48 - -//****************************************************************************** - -// NTP Type -// -------- -// Type NTP implements the DecodingLayer interface. Each NTP object -// represents in a structured form the NTP record present as the UDP -// payload in an NTP UDP packet. -// - -type NTPLeapIndicator uint8 -type NTPVersion uint8 -type NTPMode uint8 -type NTPStratum uint8 -type NTPLog2Seconds int8 -type NTPFixed16Seconds uint32 -type NTPReferenceID uint32 -type NTPTimestamp uint64 - -type NTP struct { - BaseLayer // Stores the packet bytes and payload bytes. - - LeapIndicator NTPLeapIndicator // [0,3]. Indicates whether leap second(s) is to be added. - Version NTPVersion // [0,7]. Version of the NTP protocol. - Mode NTPMode // [0,7]. Mode. - Stratum NTPStratum // [0,255]. Stratum of time server in the server tree. - Poll NTPLog2Seconds // [-128,127]. The maximum interval between successive messages, in log2 seconds. - Precision NTPLog2Seconds // [-128,127]. The precision of the system clock, in log2 seconds. - RootDelay NTPFixed16Seconds // [0,2^32-1]. Total round trip delay to the reference clock in seconds times 2^16. - RootDispersion NTPFixed16Seconds // [0,2^32-1]. Total dispersion to the reference clock, in seconds times 2^16. - ReferenceID NTPReferenceID // ID code of reference clock [0,2^32-1]. - ReferenceTimestamp NTPTimestamp // Most recent timestamp from the reference clock. - OriginTimestamp NTPTimestamp // Local time when request was sent from local host. - ReceiveTimestamp NTPTimestamp // Local time (on server) that request arrived at server host. - TransmitTimestamp NTPTimestamp // Local time (on server) that request departed server host. - - // FIX: This package should analyse the extension fields and represent the extension fields too. - ExtensionBytes []byte // Just put extensions in a byte slice. -} - -//****************************************************************************** - -// LayerType returns the layer type of the NTP object, which is LayerTypeNTP. -func (d *NTP) LayerType() gopacket.LayerType { - return LayerTypeNTP -} - -//****************************************************************************** - -// decodeNTP analyses a byte slice and attempts to decode it as an NTP -// record of a UDP packet. -// -// If it succeeds, it loads p with information about the packet and returns nil. -// If it fails, it returns an error (non nil). -// -// This function is employed in layertypes.go to register the NTP layer. -func decodeNTP(data []byte, p gopacket.PacketBuilder) error { - - // Attempt to decode the byte slice. - d := &NTP{} - err := d.DecodeFromBytes(data, p) - if err != nil { - return err - } - - // If the decoding worked, add the layer to the packet and set it - // as the application layer too, if there isn't already one. - p.AddLayer(d) - p.SetApplicationLayer(d) - - return nil -} - -//****************************************************************************** - -// DecodeFromBytes analyses a byte slice and attempts to decode it as an NTP -// record of a UDP packet. -// -// Upon succeeds, it loads the NTP object with information about the packet -// and returns nil. -// Upon failure, it returns an error (non nil). -func (d *NTP) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - - // If the data block is too short to be a NTP record, then return an error. - if len(data) < ntpMinimumRecordSizeInBytes { - df.SetTruncated() - return errors.New("NTP packet too short") - } - - // RFC 5905 does not appear to define a maximum NTP record length. - // The protocol allows "extension fields" to be included in the record, - // and states about these fields:" - // - // "While the minimum field length containing required fields is - // four words (16 octets), a maximum field length remains to be - // established." - // - // For this reason, the packet length is not checked here for being too long. - - // NTP type embeds type BaseLayer which contains two fields: - // Contents is supposed to contain the bytes of the data at this level. - // Payload is supposed to contain the payload of this level. - // Here we set the baselayer to be the bytes of the NTP record. - d.BaseLayer = BaseLayer{Contents: data[:len(data)]} - - // Extract the fields from the block of bytes. - // To make sense of this, refer to the packet diagram - // above and the section on endian conventions. - - // The first few fields are all packed into the first 32 bits. Unpack them. - f := data[0] - d.LeapIndicator = NTPLeapIndicator((f & 0xC0) >> 6) - d.Version = NTPVersion((f & 0x38) >> 3) - d.Mode = NTPMode(f & 0x07) - d.Stratum = NTPStratum(data[1]) - d.Poll = NTPLog2Seconds(data[2]) - d.Precision = NTPLog2Seconds(data[3]) - - // The remaining fields can just be copied in big endian order. - d.RootDelay = NTPFixed16Seconds(binary.BigEndian.Uint32(data[4:8])) - d.RootDispersion = NTPFixed16Seconds(binary.BigEndian.Uint32(data[8:12])) - d.ReferenceID = NTPReferenceID(binary.BigEndian.Uint32(data[12:16])) - d.ReferenceTimestamp = NTPTimestamp(binary.BigEndian.Uint64(data[16:24])) - d.OriginTimestamp = NTPTimestamp(binary.BigEndian.Uint64(data[24:32])) - d.ReceiveTimestamp = NTPTimestamp(binary.BigEndian.Uint64(data[32:40])) - d.TransmitTimestamp = NTPTimestamp(binary.BigEndian.Uint64(data[40:48])) - - // This layer does not attempt to analyse the extension bytes. - // But if there are any, we'd like the user to know. So we just - // place them all in an ExtensionBytes field. - d.ExtensionBytes = data[48:] - - // Return no error. - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (d *NTP) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - data, err := b.PrependBytes(ntpMinimumRecordSizeInBytes) - if err != nil { - return err - } - - // Pack the first few fields into the first 32 bits. - h := uint8(0) - h |= (uint8(d.LeapIndicator) << 6) & 0xC0 - h |= (uint8(d.Version) << 3) & 0x38 - h |= (uint8(d.Mode)) & 0x07 - data[0] = byte(h) - data[1] = byte(d.Stratum) - data[2] = byte(d.Poll) - data[3] = byte(d.Precision) - - // The remaining fields can just be copied in big endian order. - binary.BigEndian.PutUint32(data[4:8], uint32(d.RootDelay)) - binary.BigEndian.PutUint32(data[8:12], uint32(d.RootDispersion)) - binary.BigEndian.PutUint32(data[12:16], uint32(d.ReferenceID)) - binary.BigEndian.PutUint64(data[16:24], uint64(d.ReferenceTimestamp)) - binary.BigEndian.PutUint64(data[24:32], uint64(d.OriginTimestamp)) - binary.BigEndian.PutUint64(data[32:40], uint64(d.ReceiveTimestamp)) - binary.BigEndian.PutUint64(data[40:48], uint64(d.TransmitTimestamp)) - - ex, err := b.AppendBytes(len(d.ExtensionBytes)) - if err != nil { - return err - } - copy(ex, d.ExtensionBytes) - - return nil -} - -//****************************************************************************** - -// CanDecode returns a set of layers that NTP objects can decode. -// As NTP objects can only decide the NTP layer, we can return just that layer. -// Apparently a single layer type implements LayerClass. -func (d *NTP) CanDecode() gopacket.LayerClass { - return LayerTypeNTP -} - -//****************************************************************************** - -// NextLayerType specifies the next layer that GoPacket should attempt to -// analyse after this (NTP) layer. As NTP packets do not contain any payload -// bytes, there are no further layers to analyse. -func (d *NTP) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypeZero -} - -//****************************************************************************** - -// NTP packets do not carry any data payload, so the empty byte slice is retured. -// In Go, a nil slice is functionally identical to an empty slice, so we -// return nil to avoid a heap allocation. -func (d *NTP) Payload() []byte { - return nil -} - -//****************************************************************************** -//* End Of NTP File * -//****************************************************************************** diff --git a/vendor/github.com/google/gopacket/layers/ospf.go b/vendor/github.com/google/gopacket/layers/ospf.go deleted file mode 100644 index 4f5473d065..0000000000 --- a/vendor/github.com/google/gopacket/layers/ospf.go +++ /dev/null @@ -1,715 +0,0 @@ -// Copyright 2017 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - - "github.com/google/gopacket" -) - -// OSPFType denotes what kind of OSPF type it is -type OSPFType uint8 - -// Potential values for OSPF.Type. -const ( - OSPFHello OSPFType = 1 - OSPFDatabaseDescription OSPFType = 2 - OSPFLinkStateRequest OSPFType = 3 - OSPFLinkStateUpdate OSPFType = 4 - OSPFLinkStateAcknowledgment OSPFType = 5 -) - -// LSA Function Codes for LSAheader.LSType -const ( - RouterLSAtypeV2 = 0x1 - RouterLSAtype = 0x2001 - NetworkLSAtypeV2 = 0x2 - NetworkLSAtype = 0x2002 - SummaryLSANetworktypeV2 = 0x3 - InterAreaPrefixLSAtype = 0x2003 - SummaryLSAASBRtypeV2 = 0x4 - InterAreaRouterLSAtype = 0x2004 - ASExternalLSAtypeV2 = 0x5 - ASExternalLSAtype = 0x4005 - NSSALSAtype = 0x2007 - NSSALSAtypeV2 = 0x7 - LinkLSAtype = 0x0008 - IntraAreaPrefixLSAtype = 0x2009 -) - -// String conversions for OSPFType -func (i OSPFType) String() string { - switch i { - case OSPFHello: - return "Hello" - case OSPFDatabaseDescription: - return "Database Description" - case OSPFLinkStateRequest: - return "Link State Request" - case OSPFLinkStateUpdate: - return "Link State Update" - case OSPFLinkStateAcknowledgment: - return "Link State Acknowledgment" - default: - return "" - } -} - -// Prefix extends IntraAreaPrefixLSA -type Prefix struct { - PrefixLength uint8 - PrefixOptions uint8 - Metric uint16 - AddressPrefix []byte -} - -// IntraAreaPrefixLSA is the struct from RFC 5340 A.4.10. -type IntraAreaPrefixLSA struct { - NumOfPrefixes uint16 - RefLSType uint16 - RefLinkStateID uint32 - RefAdvRouter uint32 - Prefixes []Prefix -} - -// LinkLSA is the struct from RFC 5340 A.4.9. -type LinkLSA struct { - RtrPriority uint8 - Options uint32 - LinkLocalAddress []byte - NumOfPrefixes uint32 - Prefixes []Prefix -} - -// ASExternalLSAV2 is the struct from RFC 2328 A.4.5. -type ASExternalLSAV2 struct { - NetworkMask uint32 - ExternalBit uint8 - Metric uint32 - ForwardingAddress uint32 - ExternalRouteTag uint32 -} - -// ASExternalLSA is the struct from RFC 5340 A.4.7. -type ASExternalLSA struct { - Flags uint8 - Metric uint32 - PrefixLength uint8 - PrefixOptions uint8 - RefLSType uint16 - AddressPrefix []byte - ForwardingAddress []byte - ExternalRouteTag uint32 - RefLinkStateID uint32 -} - -// InterAreaRouterLSA is the struct from RFC 5340 A.4.6. -type InterAreaRouterLSA struct { - Options uint32 - Metric uint32 - DestinationRouterID uint32 -} - -// InterAreaPrefixLSA is the struct from RFC 5340 A.4.5. -type InterAreaPrefixLSA struct { - Metric uint32 - PrefixLength uint8 - PrefixOptions uint8 - AddressPrefix []byte -} - -// NetworkLSA is the struct from RFC 5340 A.4.4. -type NetworkLSA struct { - Options uint32 - AttachedRouter []uint32 -} - -// NetworkLSAV2 is the struct from RFC 2328 A.4.3. -type NetworkLSAV2 struct { - NetworkMask uint32 - AttachedRouter []uint32 -} - -// RouterV2 extends RouterLSAV2 -type RouterV2 struct { - Type uint8 - LinkID uint32 - LinkData uint32 - Metric uint16 -} - -// RouterLSAV2 is the struct from RFC 2328 A.4.2. -type RouterLSAV2 struct { - Flags uint8 - Links uint16 - Routers []RouterV2 -} - -// Router extends RouterLSA -type Router struct { - Type uint8 - Metric uint16 - InterfaceID uint32 - NeighborInterfaceID uint32 - NeighborRouterID uint32 -} - -// RouterLSA is the struct from RFC 5340 A.4.3. -type RouterLSA struct { - Flags uint8 - Options uint32 - Routers []Router -} - -// LSAheader is the struct from RFC 5340 A.4.2 and RFC 2328 A.4.1. -type LSAheader struct { - LSAge uint16 - LSType uint16 - LinkStateID uint32 - AdvRouter uint32 - LSSeqNumber uint32 - LSChecksum uint16 - Length uint16 - LSOptions uint8 -} - -// LSA links LSAheader with the structs from RFC 5340 A.4. -type LSA struct { - LSAheader - Content interface{} -} - -// LSUpdate is the struct from RFC 5340 A.3.5. -type LSUpdate struct { - NumOfLSAs uint32 - LSAs []LSA -} - -// LSReq is the struct from RFC 5340 A.3.4. -type LSReq struct { - LSType uint16 - LSID uint32 - AdvRouter uint32 -} - -// DbDescPkg is the struct from RFC 5340 A.3.3. -type DbDescPkg struct { - Options uint32 - InterfaceMTU uint16 - Flags uint16 - DDSeqNumber uint32 - LSAinfo []LSAheader -} - -// HelloPkg is the struct from RFC 5340 A.3.2. -type HelloPkg struct { - InterfaceID uint32 - RtrPriority uint8 - Options uint32 - HelloInterval uint16 - RouterDeadInterval uint32 - DesignatedRouterID uint32 - BackupDesignatedRouterID uint32 - NeighborID []uint32 -} - -// HelloPkgV2 extends the HelloPkg struct with OSPFv2 information -type HelloPkgV2 struct { - HelloPkg - NetworkMask uint32 -} - -// OSPF is a basic OSPF packet header with common fields of Version 2 and Version 3. -type OSPF struct { - Version uint8 - Type OSPFType - PacketLength uint16 - RouterID uint32 - AreaID uint32 - Checksum uint16 - Content interface{} -} - -//OSPFv2 extend the OSPF head with version 2 specific fields -type OSPFv2 struct { - BaseLayer - OSPF - AuType uint16 - Authentication uint64 -} - -// OSPFv3 extend the OSPF head with version 3 specific fields -type OSPFv3 struct { - BaseLayer - OSPF - Instance uint8 - Reserved uint8 -} - -// getLSAsv2 parses the LSA information from the packet for OSPFv2 -func getLSAsv2(num uint32, data []byte) ([]LSA, error) { - var lsas []LSA - var i uint32 = 0 - var offset uint32 = 0 - for ; i < num; i++ { - lstype := uint16(data[offset+3]) - lsalength := binary.BigEndian.Uint16(data[offset+18 : offset+20]) - content, err := extractLSAInformation(lstype, lsalength, data[offset:]) - if err != nil { - return nil, fmt.Errorf("Could not extract Link State type.") - } - lsa := LSA{ - LSAheader: LSAheader{ - LSAge: binary.BigEndian.Uint16(data[offset : offset+2]), - LSOptions: data[offset+2], - LSType: lstype, - LinkStateID: binary.BigEndian.Uint32(data[offset+4 : offset+8]), - AdvRouter: binary.BigEndian.Uint32(data[offset+8 : offset+12]), - LSSeqNumber: binary.BigEndian.Uint32(data[offset+12 : offset+16]), - LSChecksum: binary.BigEndian.Uint16(data[offset+16 : offset+18]), - Length: lsalength, - }, - Content: content, - } - lsas = append(lsas, lsa) - offset += uint32(lsalength) - } - return lsas, nil -} - -// extractLSAInformation extracts all the LSA information -func extractLSAInformation(lstype, lsalength uint16, data []byte) (interface{}, error) { - if lsalength < 20 { - return nil, fmt.Errorf("Link State header length %v too short, %v required", lsalength, 20) - } - if len(data) < int(lsalength) { - return nil, fmt.Errorf("Link State header length %v too short, %v required", len(data), lsalength) - } - var content interface{} - switch lstype { - case RouterLSAtypeV2: - var routers []RouterV2 - var j uint32 - for j = 24; j < uint32(lsalength); j += 12 { - if len(data) < int(j+12) { - return nil, errors.New("LSAtypeV2 too small") - } - router := RouterV2{ - LinkID: binary.BigEndian.Uint32(data[j : j+4]), - LinkData: binary.BigEndian.Uint32(data[j+4 : j+8]), - Type: uint8(data[j+8]), - Metric: binary.BigEndian.Uint16(data[j+10 : j+12]), - } - routers = append(routers, router) - } - if len(data) < 24 { - return nil, errors.New("LSAtypeV2 too small") - } - links := binary.BigEndian.Uint16(data[22:24]) - content = RouterLSAV2{ - Flags: data[20], - Links: links, - Routers: routers, - } - case NSSALSAtypeV2: - fallthrough - case ASExternalLSAtypeV2: - content = ASExternalLSAV2{ - NetworkMask: binary.BigEndian.Uint32(data[20:24]), - ExternalBit: data[24] & 0x80, - Metric: binary.BigEndian.Uint32(data[24:28]) & 0x00FFFFFF, - ForwardingAddress: binary.BigEndian.Uint32(data[28:32]), - ExternalRouteTag: binary.BigEndian.Uint32(data[32:36]), - } - case NetworkLSAtypeV2: - var routers []uint32 - var j uint32 - for j = 24; j < uint32(lsalength); j += 4 { - routers = append(routers, binary.BigEndian.Uint32(data[j:j+4])) - } - content = NetworkLSAV2{ - NetworkMask: binary.BigEndian.Uint32(data[20:24]), - AttachedRouter: routers, - } - case RouterLSAtype: - var routers []Router - var j uint32 - for j = 24; j < uint32(lsalength); j += 16 { - router := Router{ - Type: uint8(data[j]), - Metric: binary.BigEndian.Uint16(data[j+2 : j+4]), - InterfaceID: binary.BigEndian.Uint32(data[j+4 : j+8]), - NeighborInterfaceID: binary.BigEndian.Uint32(data[j+8 : j+12]), - NeighborRouterID: binary.BigEndian.Uint32(data[j+12 : j+16]), - } - routers = append(routers, router) - } - content = RouterLSA{ - Flags: uint8(data[20]), - Options: binary.BigEndian.Uint32(data[20:24]) & 0x00FFFFFF, - Routers: routers, - } - case NetworkLSAtype: - var routers []uint32 - var j uint32 - for j = 24; j < uint32(lsalength); j += 4 { - routers = append(routers, binary.BigEndian.Uint32(data[j:j+4])) - } - content = NetworkLSA{ - Options: binary.BigEndian.Uint32(data[20:24]) & 0x00FFFFFF, - AttachedRouter: routers, - } - case InterAreaPrefixLSAtype: - content = InterAreaPrefixLSA{ - Metric: binary.BigEndian.Uint32(data[20:24]) & 0x00FFFFFF, - PrefixLength: uint8(data[24]), - PrefixOptions: uint8(data[25]), - AddressPrefix: data[28:uint32(lsalength)], - } - case InterAreaRouterLSAtype: - content = InterAreaRouterLSA{ - Options: binary.BigEndian.Uint32(data[20:24]) & 0x00FFFFFF, - Metric: binary.BigEndian.Uint32(data[24:28]) & 0x00FFFFFF, - DestinationRouterID: binary.BigEndian.Uint32(data[28:32]), - } - case ASExternalLSAtype: - fallthrough - case NSSALSAtype: - flags := uint8(data[20]) - prefixLen := uint8(data[24]) / 8 - var forwardingAddress []byte - if (flags & 0x02) == 0x02 { - forwardingAddress = data[28+uint32(prefixLen) : 28+uint32(prefixLen)+16] - } - content = ASExternalLSA{ - Flags: flags, - Metric: binary.BigEndian.Uint32(data[20:24]) & 0x00FFFFFF, - PrefixLength: prefixLen, - PrefixOptions: uint8(data[25]), - RefLSType: binary.BigEndian.Uint16(data[26:28]), - AddressPrefix: data[28 : 28+uint32(prefixLen)], - ForwardingAddress: forwardingAddress, - } - case LinkLSAtype: - var prefixes []Prefix - var prefixOffset uint32 = 44 - var j uint32 - numOfPrefixes := binary.BigEndian.Uint32(data[40:44]) - for j = 0; j < numOfPrefixes; j++ { - prefixLen := uint8(data[prefixOffset]) - prefix := Prefix{ - PrefixLength: prefixLen, - PrefixOptions: uint8(data[prefixOffset+1]), - AddressPrefix: data[prefixOffset+4 : prefixOffset+4+uint32(prefixLen)/8], - } - prefixes = append(prefixes, prefix) - prefixOffset = prefixOffset + 4 + uint32(prefixLen)/8 - } - content = LinkLSA{ - RtrPriority: uint8(data[20]), - Options: binary.BigEndian.Uint32(data[20:24]) & 0x00FFFFFF, - LinkLocalAddress: data[24:40], - NumOfPrefixes: numOfPrefixes, - Prefixes: prefixes, - } - case IntraAreaPrefixLSAtype: - var prefixes []Prefix - var prefixOffset uint32 = 32 - var j uint16 - numOfPrefixes := binary.BigEndian.Uint16(data[20:22]) - for j = 0; j < numOfPrefixes; j++ { - prefixLen := uint8(data[prefixOffset]) - prefix := Prefix{ - PrefixLength: prefixLen, - PrefixOptions: uint8(data[prefixOffset+1]), - Metric: binary.BigEndian.Uint16(data[prefixOffset+2 : prefixOffset+4]), - AddressPrefix: data[prefixOffset+4 : prefixOffset+4+uint32(prefixLen)/8], - } - prefixes = append(prefixes, prefix) - prefixOffset = prefixOffset + 4 + uint32(prefixLen) - } - content = IntraAreaPrefixLSA{ - NumOfPrefixes: numOfPrefixes, - RefLSType: binary.BigEndian.Uint16(data[22:24]), - RefLinkStateID: binary.BigEndian.Uint32(data[24:28]), - RefAdvRouter: binary.BigEndian.Uint32(data[28:32]), - Prefixes: prefixes, - } - default: - return nil, fmt.Errorf("Unknown Link State type.") - } - return content, nil -} - -// getLSAs parses the LSA information from the packet for OSPFv3 -func getLSAs(num uint32, data []byte) ([]LSA, error) { - var lsas []LSA - var i uint32 = 0 - var offset uint32 = 0 - for ; i < num; i++ { - var content interface{} - lstype := binary.BigEndian.Uint16(data[offset+2 : offset+4]) - lsalength := binary.BigEndian.Uint16(data[offset+18 : offset+20]) - - content, err := extractLSAInformation(lstype, lsalength, data[offset:]) - if err != nil { - return nil, fmt.Errorf("Could not extract Link State type.") - } - lsa := LSA{ - LSAheader: LSAheader{ - LSAge: binary.BigEndian.Uint16(data[offset : offset+2]), - LSType: lstype, - LinkStateID: binary.BigEndian.Uint32(data[offset+4 : offset+8]), - AdvRouter: binary.BigEndian.Uint32(data[offset+8 : offset+12]), - LSSeqNumber: binary.BigEndian.Uint32(data[offset+12 : offset+16]), - LSChecksum: binary.BigEndian.Uint16(data[offset+16 : offset+18]), - Length: lsalength, - }, - Content: content, - } - lsas = append(lsas, lsa) - offset += uint32(lsalength) - } - return lsas, nil -} - -// DecodeFromBytes decodes the given bytes into the OSPF layer. -func (ospf *OSPFv2) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 24 { - return fmt.Errorf("Packet too smal for OSPF Version 2") - } - - ospf.Version = uint8(data[0]) - ospf.Type = OSPFType(data[1]) - ospf.PacketLength = binary.BigEndian.Uint16(data[2:4]) - ospf.RouterID = binary.BigEndian.Uint32(data[4:8]) - ospf.AreaID = binary.BigEndian.Uint32(data[8:12]) - ospf.Checksum = binary.BigEndian.Uint16(data[12:14]) - ospf.AuType = binary.BigEndian.Uint16(data[14:16]) - ospf.Authentication = binary.BigEndian.Uint64(data[16:24]) - - switch ospf.Type { - case OSPFHello: - var neighbors []uint32 - for i := 44; uint16(i+4) <= ospf.PacketLength; i += 4 { - neighbors = append(neighbors, binary.BigEndian.Uint32(data[i:i+4])) - } - ospf.Content = HelloPkgV2{ - NetworkMask: binary.BigEndian.Uint32(data[24:28]), - HelloPkg: HelloPkg{ - HelloInterval: binary.BigEndian.Uint16(data[28:30]), - Options: uint32(data[30]), - RtrPriority: uint8(data[31]), - RouterDeadInterval: binary.BigEndian.Uint32(data[32:36]), - DesignatedRouterID: binary.BigEndian.Uint32(data[36:40]), - BackupDesignatedRouterID: binary.BigEndian.Uint32(data[40:44]), - NeighborID: neighbors, - }, - } - case OSPFDatabaseDescription: - var lsas []LSAheader - for i := 32; uint16(i+20) <= ospf.PacketLength; i += 20 { - lsa := LSAheader{ - LSAge: binary.BigEndian.Uint16(data[i : i+2]), - LSType: binary.BigEndian.Uint16(data[i+2 : i+4]), - LinkStateID: binary.BigEndian.Uint32(data[i+4 : i+8]), - AdvRouter: binary.BigEndian.Uint32(data[i+8 : i+12]), - LSSeqNumber: binary.BigEndian.Uint32(data[i+12 : i+16]), - LSChecksum: binary.BigEndian.Uint16(data[i+16 : i+18]), - Length: binary.BigEndian.Uint16(data[i+18 : i+20]), - } - lsas = append(lsas, lsa) - } - ospf.Content = DbDescPkg{ - InterfaceMTU: binary.BigEndian.Uint16(data[24:26]), - Options: uint32(data[26]), - Flags: uint16(data[27]), - DDSeqNumber: binary.BigEndian.Uint32(data[28:32]), - LSAinfo: lsas, - } - case OSPFLinkStateRequest: - var lsrs []LSReq - for i := 24; uint16(i+12) <= ospf.PacketLength; i += 12 { - lsr := LSReq{ - LSType: binary.BigEndian.Uint16(data[i+2 : i+4]), - LSID: binary.BigEndian.Uint32(data[i+4 : i+8]), - AdvRouter: binary.BigEndian.Uint32(data[i+8 : i+12]), - } - lsrs = append(lsrs, lsr) - } - ospf.Content = lsrs - case OSPFLinkStateUpdate: - num := binary.BigEndian.Uint32(data[24:28]) - - lsas, err := getLSAsv2(num, data[28:]) - if err != nil { - return fmt.Errorf("Cannot parse Link State Update packet: %v", err) - } - ospf.Content = LSUpdate{ - NumOfLSAs: num, - LSAs: lsas, - } - case OSPFLinkStateAcknowledgment: - var lsas []LSAheader - for i := 24; uint16(i+20) <= ospf.PacketLength; i += 20 { - lsa := LSAheader{ - LSAge: binary.BigEndian.Uint16(data[i : i+2]), - LSOptions: data[i+2], - LSType: uint16(data[i+3]), - LinkStateID: binary.BigEndian.Uint32(data[i+4 : i+8]), - AdvRouter: binary.BigEndian.Uint32(data[i+8 : i+12]), - LSSeqNumber: binary.BigEndian.Uint32(data[i+12 : i+16]), - LSChecksum: binary.BigEndian.Uint16(data[i+16 : i+18]), - Length: binary.BigEndian.Uint16(data[i+18 : i+20]), - } - lsas = append(lsas, lsa) - } - ospf.Content = lsas - } - return nil -} - -// DecodeFromBytes decodes the given bytes into the OSPF layer. -func (ospf *OSPFv3) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - - if len(data) < 16 { - return fmt.Errorf("Packet too smal for OSPF Version 3") - } - - ospf.Version = uint8(data[0]) - ospf.Type = OSPFType(data[1]) - ospf.PacketLength = binary.BigEndian.Uint16(data[2:4]) - ospf.RouterID = binary.BigEndian.Uint32(data[4:8]) - ospf.AreaID = binary.BigEndian.Uint32(data[8:12]) - ospf.Checksum = binary.BigEndian.Uint16(data[12:14]) - ospf.Instance = uint8(data[14]) - ospf.Reserved = uint8(data[15]) - - switch ospf.Type { - case OSPFHello: - var neighbors []uint32 - for i := 36; uint16(i+4) <= ospf.PacketLength; i += 4 { - neighbors = append(neighbors, binary.BigEndian.Uint32(data[i:i+4])) - } - ospf.Content = HelloPkg{ - InterfaceID: binary.BigEndian.Uint32(data[16:20]), - RtrPriority: uint8(data[20]), - Options: binary.BigEndian.Uint32(data[21:25]) >> 8, - HelloInterval: binary.BigEndian.Uint16(data[24:26]), - RouterDeadInterval: uint32(binary.BigEndian.Uint16(data[26:28])), - DesignatedRouterID: binary.BigEndian.Uint32(data[28:32]), - BackupDesignatedRouterID: binary.BigEndian.Uint32(data[32:36]), - NeighborID: neighbors, - } - case OSPFDatabaseDescription: - var lsas []LSAheader - for i := 28; uint16(i+20) <= ospf.PacketLength; i += 20 { - lsa := LSAheader{ - LSAge: binary.BigEndian.Uint16(data[i : i+2]), - LSType: binary.BigEndian.Uint16(data[i+2 : i+4]), - LinkStateID: binary.BigEndian.Uint32(data[i+4 : i+8]), - AdvRouter: binary.BigEndian.Uint32(data[i+8 : i+12]), - LSSeqNumber: binary.BigEndian.Uint32(data[i+12 : i+16]), - LSChecksum: binary.BigEndian.Uint16(data[i+16 : i+18]), - Length: binary.BigEndian.Uint16(data[i+18 : i+20]), - } - lsas = append(lsas, lsa) - } - ospf.Content = DbDescPkg{ - Options: binary.BigEndian.Uint32(data[16:20]) & 0x00FFFFFF, - InterfaceMTU: binary.BigEndian.Uint16(data[20:22]), - Flags: binary.BigEndian.Uint16(data[22:24]), - DDSeqNumber: binary.BigEndian.Uint32(data[24:28]), - LSAinfo: lsas, - } - case OSPFLinkStateRequest: - var lsrs []LSReq - for i := 16; uint16(i+12) <= ospf.PacketLength; i += 12 { - lsr := LSReq{ - LSType: binary.BigEndian.Uint16(data[i+2 : i+4]), - LSID: binary.BigEndian.Uint32(data[i+4 : i+8]), - AdvRouter: binary.BigEndian.Uint32(data[i+8 : i+12]), - } - lsrs = append(lsrs, lsr) - } - ospf.Content = lsrs - case OSPFLinkStateUpdate: - num := binary.BigEndian.Uint32(data[16:20]) - lsas, err := getLSAs(num, data[20:]) - if err != nil { - return fmt.Errorf("Cannot parse Link State Update packet: %v", err) - } - ospf.Content = LSUpdate{ - NumOfLSAs: num, - LSAs: lsas, - } - - case OSPFLinkStateAcknowledgment: - var lsas []LSAheader - for i := 16; uint16(i+20) <= ospf.PacketLength; i += 20 { - lsa := LSAheader{ - LSAge: binary.BigEndian.Uint16(data[i : i+2]), - LSType: binary.BigEndian.Uint16(data[i+2 : i+4]), - LinkStateID: binary.BigEndian.Uint32(data[i+4 : i+8]), - AdvRouter: binary.BigEndian.Uint32(data[i+8 : i+12]), - LSSeqNumber: binary.BigEndian.Uint32(data[i+12 : i+16]), - LSChecksum: binary.BigEndian.Uint16(data[i+16 : i+18]), - Length: binary.BigEndian.Uint16(data[i+18 : i+20]), - } - lsas = append(lsas, lsa) - } - ospf.Content = lsas - default: - } - - return nil -} - -// LayerType returns LayerTypeOSPF -func (ospf *OSPFv2) LayerType() gopacket.LayerType { - return LayerTypeOSPF -} -func (ospf *OSPFv3) LayerType() gopacket.LayerType { - return LayerTypeOSPF -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (ospf *OSPFv2) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypeZero -} -func (ospf *OSPFv3) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypeZero -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (ospf *OSPFv2) CanDecode() gopacket.LayerClass { - return LayerTypeOSPF -} -func (ospf *OSPFv3) CanDecode() gopacket.LayerClass { - return LayerTypeOSPF -} - -func decodeOSPF(data []byte, p gopacket.PacketBuilder) error { - if len(data) < 14 { - return fmt.Errorf("Packet too smal for OSPF") - } - - switch uint8(data[0]) { - case 2: - ospf := &OSPFv2{} - return decodingLayerDecoder(ospf, data, p) - case 3: - ospf := &OSPFv3{} - return decodingLayerDecoder(ospf, data, p) - default: - } - - return fmt.Errorf("Unable to determine OSPF type.") -} diff --git a/vendor/github.com/google/gopacket/layers/pflog.go b/vendor/github.com/google/gopacket/layers/pflog.go deleted file mode 100644 index 9dbbd90d15..0000000000 --- a/vendor/github.com/google/gopacket/layers/pflog.go +++ /dev/null @@ -1,84 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - - "github.com/google/gopacket" -) - -type PFDirection uint8 - -const ( - PFDirectionInOut PFDirection = 0 - PFDirectionIn PFDirection = 1 - PFDirectionOut PFDirection = 2 -) - -// PFLog provides the layer for 'pf' packet-filter logging, as described at -// http://www.freebsd.org/cgi/man.cgi?query=pflog&sektion=4 -type PFLog struct { - BaseLayer - Length uint8 - Family ProtocolFamily - Action, Reason uint8 - IFName, Ruleset []byte - RuleNum, SubruleNum uint32 - UID uint32 - PID int32 - RuleUID uint32 - RulePID int32 - Direction PFDirection - // The remainder is padding -} - -func (pf *PFLog) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 60 { - df.SetTruncated() - return errors.New("PFLog data less than 60 bytes") - } - pf.Length = data[0] - pf.Family = ProtocolFamily(data[1]) - pf.Action = data[2] - pf.Reason = data[3] - pf.IFName = data[4:20] - pf.Ruleset = data[20:36] - pf.RuleNum = binary.BigEndian.Uint32(data[36:40]) - pf.SubruleNum = binary.BigEndian.Uint32(data[40:44]) - pf.UID = binary.BigEndian.Uint32(data[44:48]) - pf.PID = int32(binary.BigEndian.Uint32(data[48:52])) - pf.RuleUID = binary.BigEndian.Uint32(data[52:56]) - pf.RulePID = int32(binary.BigEndian.Uint32(data[56:60])) - pf.Direction = PFDirection(data[60]) - if pf.Length%4 != 1 { - return errors.New("PFLog header length should be 3 less than multiple of 4") - } - actualLength := int(pf.Length) + 3 - if len(data) < actualLength { - return fmt.Errorf("PFLog data size < %d", actualLength) - } - pf.Contents = data[:actualLength] - pf.Payload = data[actualLength:] - return nil -} - -// LayerType returns layers.LayerTypePFLog -func (pf *PFLog) LayerType() gopacket.LayerType { return LayerTypePFLog } - -func (pf *PFLog) CanDecode() gopacket.LayerClass { return LayerTypePFLog } - -func (pf *PFLog) NextLayerType() gopacket.LayerType { - return pf.Family.LayerType() -} - -func decodePFLog(data []byte, p gopacket.PacketBuilder) error { - pf := &PFLog{} - return decodingLayerDecoder(pf, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/ports.go b/vendor/github.com/google/gopacket/layers/ports.go deleted file mode 100644 index 1e3f42efc2..0000000000 --- a/vendor/github.com/google/gopacket/layers/ports.go +++ /dev/null @@ -1,156 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "fmt" - "strconv" - - "github.com/google/gopacket" -) - -// TCPPort is a port in a TCP layer. -type TCPPort uint16 - -// UDPPort is a port in a UDP layer. -type UDPPort uint16 - -// RUDPPort is a port in a RUDP layer. -type RUDPPort uint8 - -// SCTPPort is a port in a SCTP layer. -type SCTPPort uint16 - -// UDPLitePort is a port in a UDPLite layer. -type UDPLitePort uint16 - -// RUDPPortNames contains the string names for all RUDP ports. -var RUDPPortNames = map[RUDPPort]string{} - -// UDPLitePortNames contains the string names for all UDPLite ports. -var UDPLitePortNames = map[UDPLitePort]string{} - -// {TCP,UDP,SCTP}PortNames can be found in iana_ports.go - -// String returns the port as "number(name)" if there's a well-known port name, -// or just "number" if there isn't. Well-known names are stored in -// TCPPortNames. -func (a TCPPort) String() string { - if name, ok := TCPPortNames[a]; ok { - return fmt.Sprintf("%d(%s)", a, name) - } - return strconv.Itoa(int(a)) -} - -// LayerType returns a LayerType that would be able to decode the -// application payload. It uses some well-known ports such as 53 for -// DNS. -// -// Returns gopacket.LayerTypePayload for unknown/unsupported port numbers. -func (a TCPPort) LayerType() gopacket.LayerType { - lt := tcpPortLayerType[uint16(a)] - if lt != 0 { - return lt - } - return gopacket.LayerTypePayload -} - -var tcpPortLayerType = [65536]gopacket.LayerType{ - 53: LayerTypeDNS, - 443: LayerTypeTLS, // https - 502: LayerTypeModbusTCP, // modbustcp - 636: LayerTypeTLS, // ldaps - 989: LayerTypeTLS, // ftps-data - 990: LayerTypeTLS, // ftps - 992: LayerTypeTLS, // telnets - 993: LayerTypeTLS, // imaps - 994: LayerTypeTLS, // ircs - 995: LayerTypeTLS, // pop3s - 5061: LayerTypeTLS, // ips -} - -// RegisterTCPPortLayerType creates a new mapping between a TCPPort -// and an underlaying LayerType. -func RegisterTCPPortLayerType(port TCPPort, layerType gopacket.LayerType) { - tcpPortLayerType[port] = layerType -} - -// String returns the port as "number(name)" if there's a well-known port name, -// or just "number" if there isn't. Well-known names are stored in -// UDPPortNames. -func (a UDPPort) String() string { - if name, ok := UDPPortNames[a]; ok { - return fmt.Sprintf("%d(%s)", a, name) - } - return strconv.Itoa(int(a)) -} - -// LayerType returns a LayerType that would be able to decode the -// application payload. It uses some well-known ports such as 53 for -// DNS. -// -// Returns gopacket.LayerTypePayload for unknown/unsupported port numbers. -func (a UDPPort) LayerType() gopacket.LayerType { - lt := udpPortLayerType[uint16(a)] - if lt != 0 { - return lt - } - return gopacket.LayerTypePayload -} - -var udpPortLayerType = [65536]gopacket.LayerType{ - 53: LayerTypeDNS, - 123: LayerTypeNTP, - 4789: LayerTypeVXLAN, - 67: LayerTypeDHCPv4, - 68: LayerTypeDHCPv4, - 546: LayerTypeDHCPv6, - 547: LayerTypeDHCPv6, - 5060: LayerTypeSIP, - 6343: LayerTypeSFlow, - 6081: LayerTypeGeneve, - 3784: LayerTypeBFD, - 2152: LayerTypeGTPv1U, - 623: LayerTypeRMCP, - 1812: LayerTypeRADIUS, -} - -// RegisterUDPPortLayerType creates a new mapping between a UDPPort -// and an underlaying LayerType. -func RegisterUDPPortLayerType(port UDPPort, layerType gopacket.LayerType) { - udpPortLayerType[port] = layerType -} - -// String returns the port as "number(name)" if there's a well-known port name, -// or just "number" if there isn't. Well-known names are stored in -// RUDPPortNames. -func (a RUDPPort) String() string { - if name, ok := RUDPPortNames[a]; ok { - return fmt.Sprintf("%d(%s)", a, name) - } - return strconv.Itoa(int(a)) -} - -// String returns the port as "number(name)" if there's a well-known port name, -// or just "number" if there isn't. Well-known names are stored in -// SCTPPortNames. -func (a SCTPPort) String() string { - if name, ok := SCTPPortNames[a]; ok { - return fmt.Sprintf("%d(%s)", a, name) - } - return strconv.Itoa(int(a)) -} - -// String returns the port as "number(name)" if there's a well-known port name, -// or just "number" if there isn't. Well-known names are stored in -// UDPLitePortNames. -func (a UDPLitePort) String() string { - if name, ok := UDPLitePortNames[a]; ok { - return fmt.Sprintf("%d(%s)", a, name) - } - return strconv.Itoa(int(a)) -} diff --git a/vendor/github.com/google/gopacket/layers/ppp.go b/vendor/github.com/google/gopacket/layers/ppp.go deleted file mode 100644 index e534d698cb..0000000000 --- a/vendor/github.com/google/gopacket/layers/ppp.go +++ /dev/null @@ -1,88 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "github.com/google/gopacket" -) - -// PPP is the layer for PPP encapsulation headers. -type PPP struct { - BaseLayer - PPPType PPPType - HasPPTPHeader bool -} - -// PPPEndpoint is a singleton endpoint for PPP. Since there is no actual -// addressing for the two ends of a PPP connection, we use a singleton value -// named 'point' for each endpoint. -var PPPEndpoint = gopacket.NewEndpoint(EndpointPPP, nil) - -// PPPFlow is a singleton flow for PPP. Since there is no actual addressing for -// the two ends of a PPP connection, we use a singleton value to represent the -// flow for all PPP connections. -var PPPFlow = gopacket.NewFlow(EndpointPPP, nil, nil) - -// LayerType returns LayerTypePPP -func (p *PPP) LayerType() gopacket.LayerType { return LayerTypePPP } - -// LinkFlow returns PPPFlow. -func (p *PPP) LinkFlow() gopacket.Flow { return PPPFlow } - -func decodePPP(data []byte, p gopacket.PacketBuilder) error { - ppp := &PPP{} - offset := 0 - if data[0] == 0xff && data[1] == 0x03 { - offset = 2 - ppp.HasPPTPHeader = true - } - if data[offset]&0x1 == 0 { - if data[offset+1]&0x1 == 0 { - return errors.New("PPP has invalid type") - } - ppp.PPPType = PPPType(binary.BigEndian.Uint16(data[offset : offset+2])) - ppp.Contents = data[offset : offset+2] - ppp.Payload = data[offset+2:] - } else { - ppp.PPPType = PPPType(data[offset]) - ppp.Contents = data[offset : offset+1] - ppp.Payload = data[offset+1:] - } - p.AddLayer(ppp) - p.SetLinkLayer(ppp) - return p.NextDecoder(ppp.PPPType) -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (p *PPP) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - if p.PPPType&0x100 == 0 { - bytes, err := b.PrependBytes(2) - if err != nil { - return err - } - binary.BigEndian.PutUint16(bytes, uint16(p.PPPType)) - } else { - bytes, err := b.PrependBytes(1) - if err != nil { - return err - } - bytes[0] = uint8(p.PPPType) - } - if p.HasPPTPHeader { - bytes, err := b.PrependBytes(2) - if err != nil { - return err - } - bytes[0] = 0xff - bytes[1] = 0x03 - } - return nil -} diff --git a/vendor/github.com/google/gopacket/layers/pppoe.go b/vendor/github.com/google/gopacket/layers/pppoe.go deleted file mode 100644 index 14cd63a189..0000000000 --- a/vendor/github.com/google/gopacket/layers/pppoe.go +++ /dev/null @@ -1,60 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "github.com/google/gopacket" -) - -// PPPoE is the layer for PPPoE encapsulation headers. -type PPPoE struct { - BaseLayer - Version uint8 - Type uint8 - Code PPPoECode - SessionId uint16 - Length uint16 -} - -// LayerType returns gopacket.LayerTypePPPoE. -func (p *PPPoE) LayerType() gopacket.LayerType { - return LayerTypePPPoE -} - -// decodePPPoE decodes the PPPoE header (see http://tools.ietf.org/html/rfc2516). -func decodePPPoE(data []byte, p gopacket.PacketBuilder) error { - pppoe := &PPPoE{ - Version: data[0] >> 4, - Type: data[0] & 0x0F, - Code: PPPoECode(data[1]), - SessionId: binary.BigEndian.Uint16(data[2:4]), - Length: binary.BigEndian.Uint16(data[4:6]), - } - pppoe.BaseLayer = BaseLayer{data[:6], data[6 : 6+pppoe.Length]} - p.AddLayer(pppoe) - return p.NextDecoder(pppoe.Code) -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (p *PPPoE) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - payload := b.Bytes() - bytes, err := b.PrependBytes(6) - if err != nil { - return err - } - bytes[0] = (p.Version << 4) | p.Type - bytes[1] = byte(p.Code) - binary.BigEndian.PutUint16(bytes[2:], p.SessionId) - if opts.FixLengths { - p.Length = uint16(len(payload)) - } - binary.BigEndian.PutUint16(bytes[4:], p.Length) - return nil -} diff --git a/vendor/github.com/google/gopacket/layers/prism.go b/vendor/github.com/google/gopacket/layers/prism.go deleted file mode 100644 index e1711e7f5b..0000000000 --- a/vendor/github.com/google/gopacket/layers/prism.go +++ /dev/null @@ -1,146 +0,0 @@ -// Copyright 2015 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -// http://www.tcpdump.org/linktypes/LINKTYPE_IEEE802_11_PRISM.html - -package layers - -import ( - "encoding/binary" - "errors" - - "github.com/google/gopacket" -) - -func decodePrismValue(data []byte, pv *PrismValue) { - pv.DID = PrismDID(binary.LittleEndian.Uint32(data[0:4])) - pv.Status = binary.LittleEndian.Uint16(data[4:6]) - pv.Length = binary.LittleEndian.Uint16(data[6:8]) - pv.Data = data[8 : 8+pv.Length] -} - -type PrismDID uint32 - -const ( - PrismDIDType1HostTime PrismDID = 0x10044 - PrismDIDType2HostTime PrismDID = 0x01041 - PrismDIDType1MACTime PrismDID = 0x20044 - PrismDIDType2MACTime PrismDID = 0x02041 - PrismDIDType1Channel PrismDID = 0x30044 - PrismDIDType2Channel PrismDID = 0x03041 - PrismDIDType1RSSI PrismDID = 0x40044 - PrismDIDType2RSSI PrismDID = 0x04041 - PrismDIDType1SignalQuality PrismDID = 0x50044 - PrismDIDType2SignalQuality PrismDID = 0x05041 - PrismDIDType1Signal PrismDID = 0x60044 - PrismDIDType2Signal PrismDID = 0x06041 - PrismDIDType1Noise PrismDID = 0x70044 - PrismDIDType2Noise PrismDID = 0x07041 - PrismDIDType1Rate PrismDID = 0x80044 - PrismDIDType2Rate PrismDID = 0x08041 - PrismDIDType1TransmittedFrameIndicator PrismDID = 0x90044 - PrismDIDType2TransmittedFrameIndicator PrismDID = 0x09041 - PrismDIDType1FrameLength PrismDID = 0xA0044 - PrismDIDType2FrameLength PrismDID = 0x0A041 -) - -const ( - PrismType1MessageCode uint16 = 0x00000044 - PrismType2MessageCode uint16 = 0x00000041 -) - -func (p PrismDID) String() string { - dids := map[PrismDID]string{ - PrismDIDType1HostTime: "Host Time", - PrismDIDType2HostTime: "Host Time", - PrismDIDType1MACTime: "MAC Time", - PrismDIDType2MACTime: "MAC Time", - PrismDIDType1Channel: "Channel", - PrismDIDType2Channel: "Channel", - PrismDIDType1RSSI: "RSSI", - PrismDIDType2RSSI: "RSSI", - PrismDIDType1SignalQuality: "Signal Quality", - PrismDIDType2SignalQuality: "Signal Quality", - PrismDIDType1Signal: "Signal", - PrismDIDType2Signal: "Signal", - PrismDIDType1Noise: "Noise", - PrismDIDType2Noise: "Noise", - PrismDIDType1Rate: "Rate", - PrismDIDType2Rate: "Rate", - PrismDIDType1TransmittedFrameIndicator: "Transmitted Frame Indicator", - PrismDIDType2TransmittedFrameIndicator: "Transmitted Frame Indicator", - PrismDIDType1FrameLength: "Frame Length", - PrismDIDType2FrameLength: "Frame Length", - } - - if str, ok := dids[p]; ok { - return str - } - - return "Unknown DID" -} - -type PrismValue struct { - DID PrismDID - Status uint16 - Length uint16 - Data []byte -} - -func (pv *PrismValue) IsSupplied() bool { - return pv.Status == 1 -} - -var ErrPrismExpectedMoreData = errors.New("Expected more data.") -var ErrPrismInvalidCode = errors.New("Invalid header code.") - -func decodePrismHeader(data []byte, p gopacket.PacketBuilder) error { - d := &PrismHeader{} - return decodingLayerDecoder(d, data, p) -} - -type PrismHeader struct { - BaseLayer - Code uint16 - Length uint16 - DeviceName string - Values []PrismValue -} - -func (m *PrismHeader) LayerType() gopacket.LayerType { return LayerTypePrismHeader } - -func (m *PrismHeader) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - m.Code = binary.LittleEndian.Uint16(data[0:4]) - m.Length = binary.LittleEndian.Uint16(data[4:8]) - m.DeviceName = string(data[8:24]) - m.BaseLayer = BaseLayer{Contents: data[:m.Length], Payload: data[m.Length:len(data)]} - - switch m.Code { - case PrismType1MessageCode: - fallthrough - case PrismType2MessageCode: - // valid message code - default: - return ErrPrismInvalidCode - } - - offset := uint16(24) - - m.Values = make([]PrismValue, (m.Length-offset)/12) - for i := 0; i < len(m.Values); i++ { - decodePrismValue(data[offset:offset+12], &m.Values[i]) - offset += 12 - } - - if offset != m.Length { - return ErrPrismExpectedMoreData - } - - return nil -} - -func (m *PrismHeader) CanDecode() gopacket.LayerClass { return LayerTypePrismHeader } -func (m *PrismHeader) NextLayerType() gopacket.LayerType { return LayerTypeDot11 } diff --git a/vendor/github.com/google/gopacket/layers/radiotap.go b/vendor/github.com/google/gopacket/layers/radiotap.go deleted file mode 100644 index d09559f793..0000000000 --- a/vendor/github.com/google/gopacket/layers/radiotap.go +++ /dev/null @@ -1,1076 +0,0 @@ -// Copyright 2014 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "bytes" - "encoding/binary" - "errors" - "fmt" - "hash/crc32" - "strings" - - "github.com/google/gopacket" -) - -// align calculates the number of bytes needed to align with the width -// on the offset, returning the number of bytes we need to skip to -// align to the offset (width). -func align(offset uint16, width uint16) uint16 { - return ((((offset) + ((width) - 1)) & (^((width) - 1))) - offset) -} - -type RadioTapPresent uint32 - -const ( - RadioTapPresentTSFT RadioTapPresent = 1 << iota - RadioTapPresentFlags - RadioTapPresentRate - RadioTapPresentChannel - RadioTapPresentFHSS - RadioTapPresentDBMAntennaSignal - RadioTapPresentDBMAntennaNoise - RadioTapPresentLockQuality - RadioTapPresentTxAttenuation - RadioTapPresentDBTxAttenuation - RadioTapPresentDBMTxPower - RadioTapPresentAntenna - RadioTapPresentDBAntennaSignal - RadioTapPresentDBAntennaNoise - RadioTapPresentRxFlags - RadioTapPresentTxFlags - RadioTapPresentRtsRetries - RadioTapPresentDataRetries - _ - RadioTapPresentMCS - RadioTapPresentAMPDUStatus - RadioTapPresentVHT - RadioTapPresentEXT RadioTapPresent = 1 << 31 -) - -func (r RadioTapPresent) TSFT() bool { - return r&RadioTapPresentTSFT != 0 -} -func (r RadioTapPresent) Flags() bool { - return r&RadioTapPresentFlags != 0 -} -func (r RadioTapPresent) Rate() bool { - return r&RadioTapPresentRate != 0 -} -func (r RadioTapPresent) Channel() bool { - return r&RadioTapPresentChannel != 0 -} -func (r RadioTapPresent) FHSS() bool { - return r&RadioTapPresentFHSS != 0 -} -func (r RadioTapPresent) DBMAntennaSignal() bool { - return r&RadioTapPresentDBMAntennaSignal != 0 -} -func (r RadioTapPresent) DBMAntennaNoise() bool { - return r&RadioTapPresentDBMAntennaNoise != 0 -} -func (r RadioTapPresent) LockQuality() bool { - return r&RadioTapPresentLockQuality != 0 -} -func (r RadioTapPresent) TxAttenuation() bool { - return r&RadioTapPresentTxAttenuation != 0 -} -func (r RadioTapPresent) DBTxAttenuation() bool { - return r&RadioTapPresentDBTxAttenuation != 0 -} -func (r RadioTapPresent) DBMTxPower() bool { - return r&RadioTapPresentDBMTxPower != 0 -} -func (r RadioTapPresent) Antenna() bool { - return r&RadioTapPresentAntenna != 0 -} -func (r RadioTapPresent) DBAntennaSignal() bool { - return r&RadioTapPresentDBAntennaSignal != 0 -} -func (r RadioTapPresent) DBAntennaNoise() bool { - return r&RadioTapPresentDBAntennaNoise != 0 -} -func (r RadioTapPresent) RxFlags() bool { - return r&RadioTapPresentRxFlags != 0 -} -func (r RadioTapPresent) TxFlags() bool { - return r&RadioTapPresentTxFlags != 0 -} -func (r RadioTapPresent) RtsRetries() bool { - return r&RadioTapPresentRtsRetries != 0 -} -func (r RadioTapPresent) DataRetries() bool { - return r&RadioTapPresentDataRetries != 0 -} -func (r RadioTapPresent) MCS() bool { - return r&RadioTapPresentMCS != 0 -} -func (r RadioTapPresent) AMPDUStatus() bool { - return r&RadioTapPresentAMPDUStatus != 0 -} -func (r RadioTapPresent) VHT() bool { - return r&RadioTapPresentVHT != 0 -} -func (r RadioTapPresent) EXT() bool { - return r&RadioTapPresentEXT != 0 -} - -type RadioTapChannelFlags uint16 - -const ( - RadioTapChannelFlagsTurbo RadioTapChannelFlags = 0x0010 // Turbo channel - RadioTapChannelFlagsCCK RadioTapChannelFlags = 0x0020 // CCK channel - RadioTapChannelFlagsOFDM RadioTapChannelFlags = 0x0040 // OFDM channel - RadioTapChannelFlagsGhz2 RadioTapChannelFlags = 0x0080 // 2 GHz spectrum channel. - RadioTapChannelFlagsGhz5 RadioTapChannelFlags = 0x0100 // 5 GHz spectrum channel - RadioTapChannelFlagsPassive RadioTapChannelFlags = 0x0200 // Only passive scan allowed - RadioTapChannelFlagsDynamic RadioTapChannelFlags = 0x0400 // Dynamic CCK-OFDM channel - RadioTapChannelFlagsGFSK RadioTapChannelFlags = 0x0800 // GFSK channel (FHSS PHY) -) - -func (r RadioTapChannelFlags) Turbo() bool { - return r&RadioTapChannelFlagsTurbo != 0 -} -func (r RadioTapChannelFlags) CCK() bool { - return r&RadioTapChannelFlagsCCK != 0 -} -func (r RadioTapChannelFlags) OFDM() bool { - return r&RadioTapChannelFlagsOFDM != 0 -} -func (r RadioTapChannelFlags) Ghz2() bool { - return r&RadioTapChannelFlagsGhz2 != 0 -} -func (r RadioTapChannelFlags) Ghz5() bool { - return r&RadioTapChannelFlagsGhz5 != 0 -} -func (r RadioTapChannelFlags) Passive() bool { - return r&RadioTapChannelFlagsPassive != 0 -} -func (r RadioTapChannelFlags) Dynamic() bool { - return r&RadioTapChannelFlagsDynamic != 0 -} -func (r RadioTapChannelFlags) GFSK() bool { - return r&RadioTapChannelFlagsGFSK != 0 -} - -// String provides a human readable string for RadioTapChannelFlags. -// This string is possibly subject to change over time; if you're storing this -// persistently, you should probably store the RadioTapChannelFlags value, not its string. -func (a RadioTapChannelFlags) String() string { - var out bytes.Buffer - if a.Turbo() { - out.WriteString("Turbo,") - } - if a.CCK() { - out.WriteString("CCK,") - } - if a.OFDM() { - out.WriteString("OFDM,") - } - if a.Ghz2() { - out.WriteString("Ghz2,") - } - if a.Ghz5() { - out.WriteString("Ghz5,") - } - if a.Passive() { - out.WriteString("Passive,") - } - if a.Dynamic() { - out.WriteString("Dynamic,") - } - if a.GFSK() { - out.WriteString("GFSK,") - } - - if length := out.Len(); length > 0 { - return string(out.Bytes()[:length-1]) // strip final comma - } - return "" -} - -type RadioTapFlags uint8 - -const ( - RadioTapFlagsCFP RadioTapFlags = 1 << iota // sent/received during CFP - RadioTapFlagsShortPreamble // sent/received * with short * preamble - RadioTapFlagsWEP // sent/received * with WEP encryption - RadioTapFlagsFrag // sent/received * with fragmentation - RadioTapFlagsFCS // frame includes FCS - RadioTapFlagsDatapad // frame has padding between * 802.11 header and payload * (to 32-bit boundary) - RadioTapFlagsBadFCS // does not pass FCS check - RadioTapFlagsShortGI // HT short GI -) - -func (r RadioTapFlags) CFP() bool { - return r&RadioTapFlagsCFP != 0 -} -func (r RadioTapFlags) ShortPreamble() bool { - return r&RadioTapFlagsShortPreamble != 0 -} -func (r RadioTapFlags) WEP() bool { - return r&RadioTapFlagsWEP != 0 -} -func (r RadioTapFlags) Frag() bool { - return r&RadioTapFlagsFrag != 0 -} -func (r RadioTapFlags) FCS() bool { - return r&RadioTapFlagsFCS != 0 -} -func (r RadioTapFlags) Datapad() bool { - return r&RadioTapFlagsDatapad != 0 -} -func (r RadioTapFlags) BadFCS() bool { - return r&RadioTapFlagsBadFCS != 0 -} -func (r RadioTapFlags) ShortGI() bool { - return r&RadioTapFlagsShortGI != 0 -} - -// String provides a human readable string for RadioTapFlags. -// This string is possibly subject to change over time; if you're storing this -// persistently, you should probably store the RadioTapFlags value, not its string. -func (a RadioTapFlags) String() string { - var out bytes.Buffer - if a.CFP() { - out.WriteString("CFP,") - } - if a.ShortPreamble() { - out.WriteString("SHORT-PREAMBLE,") - } - if a.WEP() { - out.WriteString("WEP,") - } - if a.Frag() { - out.WriteString("FRAG,") - } - if a.FCS() { - out.WriteString("FCS,") - } - if a.Datapad() { - out.WriteString("DATAPAD,") - } - if a.ShortGI() { - out.WriteString("SHORT-GI,") - } - - if length := out.Len(); length > 0 { - return string(out.Bytes()[:length-1]) // strip final comma - } - return "" -} - -type RadioTapRate uint8 - -func (a RadioTapRate) String() string { - return fmt.Sprintf("%v Mb/s", 0.5*float32(a)) -} - -type RadioTapChannelFrequency uint16 - -func (a RadioTapChannelFrequency) String() string { - return fmt.Sprintf("%d MHz", a) -} - -type RadioTapRxFlags uint16 - -const ( - RadioTapRxFlagsBadPlcp RadioTapRxFlags = 0x0002 -) - -func (self RadioTapRxFlags) BadPlcp() bool { - return self&RadioTapRxFlagsBadPlcp != 0 -} - -func (self RadioTapRxFlags) String() string { - if self.BadPlcp() { - return "BADPLCP" - } - return "" -} - -type RadioTapTxFlags uint16 - -const ( - RadioTapTxFlagsFail RadioTapTxFlags = 1 << iota - RadioTapTxFlagsCTS - RadioTapTxFlagsRTS - RadioTapTxFlagsNoACK -) - -func (self RadioTapTxFlags) Fail() bool { return self&RadioTapTxFlagsFail != 0 } -func (self RadioTapTxFlags) CTS() bool { return self&RadioTapTxFlagsCTS != 0 } -func (self RadioTapTxFlags) RTS() bool { return self&RadioTapTxFlagsRTS != 0 } -func (self RadioTapTxFlags) NoACK() bool { return self&RadioTapTxFlagsNoACK != 0 } - -func (self RadioTapTxFlags) String() string { - var tokens []string - if self.Fail() { - tokens = append(tokens, "Fail") - } - if self.CTS() { - tokens = append(tokens, "CTS") - } - if self.RTS() { - tokens = append(tokens, "RTS") - } - if self.NoACK() { - tokens = append(tokens, "NoACK") - } - return strings.Join(tokens, ",") -} - -type RadioTapMCS struct { - Known RadioTapMCSKnown - Flags RadioTapMCSFlags - MCS uint8 -} - -func (self RadioTapMCS) String() string { - var tokens []string - if self.Known.Bandwidth() { - token := "?" - switch self.Flags.Bandwidth() { - case 0: - token = "20" - case 1: - token = "40" - case 2: - token = "40(20L)" - case 3: - token = "40(20U)" - } - tokens = append(tokens, token) - } - if self.Known.MCSIndex() { - tokens = append(tokens, fmt.Sprintf("MCSIndex#%d", self.MCS)) - } - if self.Known.GuardInterval() { - if self.Flags.ShortGI() { - tokens = append(tokens, fmt.Sprintf("shortGI")) - } else { - tokens = append(tokens, fmt.Sprintf("longGI")) - } - } - if self.Known.HTFormat() { - if self.Flags.Greenfield() { - tokens = append(tokens, fmt.Sprintf("HT-greenfield")) - } else { - tokens = append(tokens, fmt.Sprintf("HT-mixed")) - } - } - if self.Known.FECType() { - if self.Flags.FECLDPC() { - tokens = append(tokens, fmt.Sprintf("LDPC")) - } else { - tokens = append(tokens, fmt.Sprintf("BCC")) - } - } - if self.Known.STBC() { - tokens = append(tokens, fmt.Sprintf("STBC#%d", self.Flags.STBC())) - } - if self.Known.NESS() { - num := 0 - if self.Known.NESS1() { - num |= 0x02 - } - if self.Flags.NESS0() { - num |= 0x01 - } - tokens = append(tokens, fmt.Sprintf("num-of-ESS#%d", num)) - } - return strings.Join(tokens, ",") -} - -type RadioTapMCSKnown uint8 - -const ( - RadioTapMCSKnownBandwidth RadioTapMCSKnown = 1 << iota - RadioTapMCSKnownMCSIndex - RadioTapMCSKnownGuardInterval - RadioTapMCSKnownHTFormat - RadioTapMCSKnownFECType - RadioTapMCSKnownSTBC - RadioTapMCSKnownNESS - RadioTapMCSKnownNESS1 -) - -func (self RadioTapMCSKnown) Bandwidth() bool { return self&RadioTapMCSKnownBandwidth != 0 } -func (self RadioTapMCSKnown) MCSIndex() bool { return self&RadioTapMCSKnownMCSIndex != 0 } -func (self RadioTapMCSKnown) GuardInterval() bool { return self&RadioTapMCSKnownGuardInterval != 0 } -func (self RadioTapMCSKnown) HTFormat() bool { return self&RadioTapMCSKnownHTFormat != 0 } -func (self RadioTapMCSKnown) FECType() bool { return self&RadioTapMCSKnownFECType != 0 } -func (self RadioTapMCSKnown) STBC() bool { return self&RadioTapMCSKnownSTBC != 0 } -func (self RadioTapMCSKnown) NESS() bool { return self&RadioTapMCSKnownNESS != 0 } -func (self RadioTapMCSKnown) NESS1() bool { return self&RadioTapMCSKnownNESS1 != 0 } - -type RadioTapMCSFlags uint8 - -const ( - RadioTapMCSFlagsBandwidthMask RadioTapMCSFlags = 0x03 - RadioTapMCSFlagsShortGI = 0x04 - RadioTapMCSFlagsGreenfield = 0x08 - RadioTapMCSFlagsFECLDPC = 0x10 - RadioTapMCSFlagsSTBCMask = 0x60 - RadioTapMCSFlagsNESS0 = 0x80 -) - -func (self RadioTapMCSFlags) Bandwidth() int { - return int(self & RadioTapMCSFlagsBandwidthMask) -} -func (self RadioTapMCSFlags) ShortGI() bool { return self&RadioTapMCSFlagsShortGI != 0 } -func (self RadioTapMCSFlags) Greenfield() bool { return self&RadioTapMCSFlagsGreenfield != 0 } -func (self RadioTapMCSFlags) FECLDPC() bool { return self&RadioTapMCSFlagsFECLDPC != 0 } -func (self RadioTapMCSFlags) STBC() int { - return int(self&RadioTapMCSFlagsSTBCMask) >> 5 -} -func (self RadioTapMCSFlags) NESS0() bool { return self&RadioTapMCSFlagsNESS0 != 0 } - -type RadioTapAMPDUStatus struct { - Reference uint32 - Flags RadioTapAMPDUStatusFlags - CRC uint8 -} - -func (self RadioTapAMPDUStatus) String() string { - tokens := []string{ - fmt.Sprintf("ref#%x", self.Reference), - } - if self.Flags.ReportZerolen() && self.Flags.IsZerolen() { - tokens = append(tokens, fmt.Sprintf("zero-length")) - } - if self.Flags.LastKnown() && self.Flags.IsLast() { - tokens = append(tokens, "last") - } - if self.Flags.DelimCRCErr() { - tokens = append(tokens, "delimiter CRC error") - } - if self.Flags.DelimCRCKnown() { - tokens = append(tokens, fmt.Sprintf("delimiter-CRC=%02x", self.CRC)) - } - return strings.Join(tokens, ",") -} - -type RadioTapAMPDUStatusFlags uint16 - -const ( - RadioTapAMPDUStatusFlagsReportZerolen RadioTapAMPDUStatusFlags = 1 << iota - RadioTapAMPDUIsZerolen - RadioTapAMPDULastKnown - RadioTapAMPDUIsLast - RadioTapAMPDUDelimCRCErr - RadioTapAMPDUDelimCRCKnown -) - -func (self RadioTapAMPDUStatusFlags) ReportZerolen() bool { - return self&RadioTapAMPDUStatusFlagsReportZerolen != 0 -} -func (self RadioTapAMPDUStatusFlags) IsZerolen() bool { return self&RadioTapAMPDUIsZerolen != 0 } -func (self RadioTapAMPDUStatusFlags) LastKnown() bool { return self&RadioTapAMPDULastKnown != 0 } -func (self RadioTapAMPDUStatusFlags) IsLast() bool { return self&RadioTapAMPDUIsLast != 0 } -func (self RadioTapAMPDUStatusFlags) DelimCRCErr() bool { return self&RadioTapAMPDUDelimCRCErr != 0 } -func (self RadioTapAMPDUStatusFlags) DelimCRCKnown() bool { - return self&RadioTapAMPDUDelimCRCKnown != 0 -} - -type RadioTapVHT struct { - Known RadioTapVHTKnown - Flags RadioTapVHTFlags - Bandwidth uint8 - MCSNSS [4]RadioTapVHTMCSNSS - Coding uint8 - GroupId uint8 - PartialAID uint16 -} - -func (self RadioTapVHT) String() string { - var tokens []string - if self.Known.STBC() { - if self.Flags.STBC() { - tokens = append(tokens, "STBC") - } else { - tokens = append(tokens, "no STBC") - } - } - if self.Known.TXOPPSNotAllowed() { - if self.Flags.TXOPPSNotAllowed() { - tokens = append(tokens, "TXOP doze not allowed") - } else { - tokens = append(tokens, "TXOP doze allowed") - } - } - if self.Known.GI() { - if self.Flags.SGI() { - tokens = append(tokens, "short GI") - } else { - tokens = append(tokens, "long GI") - } - } - if self.Known.SGINSYMDisambiguation() { - if self.Flags.SGINSYMMod() { - tokens = append(tokens, "NSYM mod 10=9") - } else { - tokens = append(tokens, "NSYM mod 10!=9 or no short GI") - } - } - if self.Known.LDPCExtraOFDMSymbol() { - if self.Flags.LDPCExtraOFDMSymbol() { - tokens = append(tokens, "LDPC extra OFDM symbols") - } else { - tokens = append(tokens, "no LDPC extra OFDM symbols") - } - } - if self.Known.Beamformed() { - if self.Flags.Beamformed() { - tokens = append(tokens, "beamformed") - } else { - tokens = append(tokens, "no beamformed") - } - } - if self.Known.Bandwidth() { - token := "?" - switch self.Bandwidth & 0x1f { - case 0: - token = "20" - case 1: - token = "40" - case 2: - token = "40(20L)" - case 3: - token = "40(20U)" - case 4: - token = "80" - case 5: - token = "80(40L)" - case 6: - token = "80(40U)" - case 7: - token = "80(20LL)" - case 8: - token = "80(20LU)" - case 9: - token = "80(20UL)" - case 10: - token = "80(20UU)" - case 11: - token = "160" - case 12: - token = "160(80L)" - case 13: - token = "160(80U)" - case 14: - token = "160(40LL)" - case 15: - token = "160(40LU)" - case 16: - token = "160(40UL)" - case 17: - token = "160(40UU)" - case 18: - token = "160(20LLL)" - case 19: - token = "160(20LLU)" - case 20: - token = "160(20LUL)" - case 21: - token = "160(20LUU)" - case 22: - token = "160(20ULL)" - case 23: - token = "160(20ULU)" - case 24: - token = "160(20UUL)" - case 25: - token = "160(20UUU)" - } - tokens = append(tokens, token) - } - for i, MCSNSS := range self.MCSNSS { - if MCSNSS.Present() { - fec := "?" - switch self.Coding & (1 << uint8(i)) { - case 0: - fec = "BCC" - case 1: - fec = "LDPC" - } - tokens = append(tokens, fmt.Sprintf("user%d(%s,%s)", i, MCSNSS.String(), fec)) - } - } - if self.Known.GroupId() { - tokens = append(tokens, - fmt.Sprintf("group=%d", self.GroupId)) - } - if self.Known.PartialAID() { - tokens = append(tokens, - fmt.Sprintf("partial-AID=%d", self.PartialAID)) - } - return strings.Join(tokens, ",") -} - -type RadioTapVHTKnown uint16 - -const ( - RadioTapVHTKnownSTBC RadioTapVHTKnown = 1 << iota - RadioTapVHTKnownTXOPPSNotAllowed - RadioTapVHTKnownGI - RadioTapVHTKnownSGINSYMDisambiguation - RadioTapVHTKnownLDPCExtraOFDMSymbol - RadioTapVHTKnownBeamformed - RadioTapVHTKnownBandwidth - RadioTapVHTKnownGroupId - RadioTapVHTKnownPartialAID -) - -func (self RadioTapVHTKnown) STBC() bool { return self&RadioTapVHTKnownSTBC != 0 } -func (self RadioTapVHTKnown) TXOPPSNotAllowed() bool { - return self&RadioTapVHTKnownTXOPPSNotAllowed != 0 -} -func (self RadioTapVHTKnown) GI() bool { return self&RadioTapVHTKnownGI != 0 } -func (self RadioTapVHTKnown) SGINSYMDisambiguation() bool { - return self&RadioTapVHTKnownSGINSYMDisambiguation != 0 -} -func (self RadioTapVHTKnown) LDPCExtraOFDMSymbol() bool { - return self&RadioTapVHTKnownLDPCExtraOFDMSymbol != 0 -} -func (self RadioTapVHTKnown) Beamformed() bool { return self&RadioTapVHTKnownBeamformed != 0 } -func (self RadioTapVHTKnown) Bandwidth() bool { return self&RadioTapVHTKnownBandwidth != 0 } -func (self RadioTapVHTKnown) GroupId() bool { return self&RadioTapVHTKnownGroupId != 0 } -func (self RadioTapVHTKnown) PartialAID() bool { return self&RadioTapVHTKnownPartialAID != 0 } - -type RadioTapVHTFlags uint8 - -const ( - RadioTapVHTFlagsSTBC RadioTapVHTFlags = 1 << iota - RadioTapVHTFlagsTXOPPSNotAllowed - RadioTapVHTFlagsSGI - RadioTapVHTFlagsSGINSYMMod - RadioTapVHTFlagsLDPCExtraOFDMSymbol - RadioTapVHTFlagsBeamformed -) - -func (self RadioTapVHTFlags) STBC() bool { return self&RadioTapVHTFlagsSTBC != 0 } -func (self RadioTapVHTFlags) TXOPPSNotAllowed() bool { - return self&RadioTapVHTFlagsTXOPPSNotAllowed != 0 -} -func (self RadioTapVHTFlags) SGI() bool { return self&RadioTapVHTFlagsSGI != 0 } -func (self RadioTapVHTFlags) SGINSYMMod() bool { return self&RadioTapVHTFlagsSGINSYMMod != 0 } -func (self RadioTapVHTFlags) LDPCExtraOFDMSymbol() bool { - return self&RadioTapVHTFlagsLDPCExtraOFDMSymbol != 0 -} -func (self RadioTapVHTFlags) Beamformed() bool { return self&RadioTapVHTFlagsBeamformed != 0 } - -type RadioTapVHTMCSNSS uint8 - -func (self RadioTapVHTMCSNSS) Present() bool { - return self&0x0F != 0 -} - -func (self RadioTapVHTMCSNSS) String() string { - return fmt.Sprintf("NSS#%dMCS#%d", uint32(self&0xf), uint32(self>>4)) -} - -func decodeRadioTap(data []byte, p gopacket.PacketBuilder) error { - d := &RadioTap{} - // TODO: Should we set LinkLayer here? And implement LinkFlow - return decodingLayerDecoder(d, data, p) -} - -type RadioTap struct { - BaseLayer - - // Version 0. Only increases for drastic changes, introduction of compatible new fields does not count. - Version uint8 - // Length of the whole header in bytes, including it_version, it_pad, it_len, and data fields. - Length uint16 - // Present is a bitmap telling which fields are present. Set bit 31 (0x80000000) to extend the bitmap by another 32 bits. Additional extensions are made by setting bit 31. - Present RadioTapPresent - // TSFT: value in microseconds of the MAC's 64-bit 802.11 Time Synchronization Function timer when the first bit of the MPDU arrived at the MAC. For received frames, only. - TSFT uint64 - Flags RadioTapFlags - // Rate Tx/Rx data rate - Rate RadioTapRate - // ChannelFrequency Tx/Rx frequency in MHz, followed by flags - ChannelFrequency RadioTapChannelFrequency - ChannelFlags RadioTapChannelFlags - // FHSS For frequency-hopping radios, the hop set (first byte) and pattern (second byte). - FHSS uint16 - // DBMAntennaSignal RF signal power at the antenna, decibel difference from one milliwatt. - DBMAntennaSignal int8 - // DBMAntennaNoise RF noise power at the antenna, decibel difference from one milliwatt. - DBMAntennaNoise int8 - // LockQuality Quality of Barker code lock. Unitless. Monotonically nondecreasing with "better" lock strength. Called "Signal Quality" in datasheets. - LockQuality uint16 - // TxAttenuation Transmit power expressed as unitless distance from max power set at factory calibration. 0 is max power. Monotonically nondecreasing with lower power levels. - TxAttenuation uint16 - // DBTxAttenuation Transmit power expressed as decibel distance from max power set at factory calibration. 0 is max power. Monotonically nondecreasing with lower power levels. - DBTxAttenuation uint16 - // DBMTxPower Transmit power expressed as dBm (decibels from a 1 milliwatt reference). This is the absolute power level measured at the antenna port. - DBMTxPower int8 - // Antenna Unitless indication of the Rx/Tx antenna for this packet. The first antenna is antenna 0. - Antenna uint8 - // DBAntennaSignal RF signal power at the antenna, decibel difference from an arbitrary, fixed reference. - DBAntennaSignal uint8 - // DBAntennaNoise RF noise power at the antenna, decibel difference from an arbitrary, fixed reference point. - DBAntennaNoise uint8 - // - RxFlags RadioTapRxFlags - TxFlags RadioTapTxFlags - RtsRetries uint8 - DataRetries uint8 - MCS RadioTapMCS - AMPDUStatus RadioTapAMPDUStatus - VHT RadioTapVHT -} - -func (m *RadioTap) LayerType() gopacket.LayerType { return LayerTypeRadioTap } - -func (m *RadioTap) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 8 { - df.SetTruncated() - return errors.New("RadioTap too small") - } - m.Version = uint8(data[0]) - m.Length = binary.LittleEndian.Uint16(data[2:4]) - m.Present = RadioTapPresent(binary.LittleEndian.Uint32(data[4:8])) - - offset := uint16(4) - - for (binary.LittleEndian.Uint32(data[offset:offset+4]) & 0x80000000) != 0 { - // This parser only handles standard radiotap namespace, - // and expects all fields are packed in the first it_present. - // Extended bitmap will be just ignored. - offset += 4 - } - offset += 4 // skip the bitmap - - if m.Present.TSFT() { - offset += align(offset, 8) - m.TSFT = binary.LittleEndian.Uint64(data[offset : offset+8]) - offset += 8 - } - if m.Present.Flags() { - m.Flags = RadioTapFlags(data[offset]) - offset++ - } - if m.Present.Rate() { - m.Rate = RadioTapRate(data[offset]) - offset++ - } - if m.Present.Channel() { - offset += align(offset, 2) - m.ChannelFrequency = RadioTapChannelFrequency(binary.LittleEndian.Uint16(data[offset : offset+2])) - offset += 2 - m.ChannelFlags = RadioTapChannelFlags(binary.LittleEndian.Uint16(data[offset : offset+2])) - offset += 2 - } - if m.Present.FHSS() { - m.FHSS = binary.LittleEndian.Uint16(data[offset : offset+2]) - offset += 2 - } - if m.Present.DBMAntennaSignal() { - m.DBMAntennaSignal = int8(data[offset]) - offset++ - } - if m.Present.DBMAntennaNoise() { - m.DBMAntennaNoise = int8(data[offset]) - offset++ - } - if m.Present.LockQuality() { - offset += align(offset, 2) - m.LockQuality = binary.LittleEndian.Uint16(data[offset : offset+2]) - offset += 2 - } - if m.Present.TxAttenuation() { - offset += align(offset, 2) - m.TxAttenuation = binary.LittleEndian.Uint16(data[offset : offset+2]) - offset += 2 - } - if m.Present.DBTxAttenuation() { - offset += align(offset, 2) - m.DBTxAttenuation = binary.LittleEndian.Uint16(data[offset : offset+2]) - offset += 2 - } - if m.Present.DBMTxPower() { - m.DBMTxPower = int8(data[offset]) - offset++ - } - if m.Present.Antenna() { - m.Antenna = uint8(data[offset]) - offset++ - } - if m.Present.DBAntennaSignal() { - m.DBAntennaSignal = uint8(data[offset]) - offset++ - } - if m.Present.DBAntennaNoise() { - m.DBAntennaNoise = uint8(data[offset]) - offset++ - } - if m.Present.RxFlags() { - offset += align(offset, 2) - m.RxFlags = RadioTapRxFlags(binary.LittleEndian.Uint16(data[offset:])) - offset += 2 - } - if m.Present.TxFlags() { - offset += align(offset, 2) - m.TxFlags = RadioTapTxFlags(binary.LittleEndian.Uint16(data[offset:])) - offset += 2 - } - if m.Present.RtsRetries() { - m.RtsRetries = uint8(data[offset]) - offset++ - } - if m.Present.DataRetries() { - m.DataRetries = uint8(data[offset]) - offset++ - } - if m.Present.MCS() { - m.MCS = RadioTapMCS{ - RadioTapMCSKnown(data[offset]), - RadioTapMCSFlags(data[offset+1]), - uint8(data[offset+2]), - } - offset += 3 - } - if m.Present.AMPDUStatus() { - offset += align(offset, 4) - m.AMPDUStatus = RadioTapAMPDUStatus{ - Reference: binary.LittleEndian.Uint32(data[offset:]), - Flags: RadioTapAMPDUStatusFlags(binary.LittleEndian.Uint16(data[offset+4:])), - CRC: uint8(data[offset+6]), - } - offset += 8 - } - if m.Present.VHT() { - offset += align(offset, 2) - m.VHT = RadioTapVHT{ - Known: RadioTapVHTKnown(binary.LittleEndian.Uint16(data[offset:])), - Flags: RadioTapVHTFlags(data[offset+2]), - Bandwidth: uint8(data[offset+3]), - MCSNSS: [4]RadioTapVHTMCSNSS{ - RadioTapVHTMCSNSS(data[offset+4]), - RadioTapVHTMCSNSS(data[offset+5]), - RadioTapVHTMCSNSS(data[offset+6]), - RadioTapVHTMCSNSS(data[offset+7]), - }, - Coding: uint8(data[offset+8]), - GroupId: uint8(data[offset+9]), - PartialAID: binary.LittleEndian.Uint16(data[offset+10:]), - } - offset += 12 - } - - payload := data[m.Length:] - - // Remove non standard padding used by some Wi-Fi drivers - if m.Flags.Datapad() && - payload[0]&0xC == 0x8 { //&& // Data frame - headlen := 24 - if payload[0]&0x8C == 0x88 { // QoS - headlen += 2 - } - if payload[1]&0x3 == 0x3 { // 4 addresses - headlen += 2 - } - if headlen%4 == 2 { - payload = append(payload[:headlen], payload[headlen+2:len(payload)]...) - } - } - - if !m.Flags.FCS() { - // Dot11.DecodeFromBytes() expects FCS present and performs a hard chop on the checksum - // If a user is handing in subslices or packets from a buffered stream, the capacity of the slice - // may extend beyond the len, rather than expecting callers to enforce cap==len on every packet - // we take the hit in this one case and do a reallocation. If the user DOES enforce cap==len - // then the reallocation will happen anyway on the append. This is requried because the append - // write to the memory directly after the payload if there is sufficient capacity, which callers - // may not expect. - reallocPayload := make([]byte, len(payload)+4) - copy(reallocPayload[0:len(payload)], payload) - h := crc32.NewIEEE() - h.Write(payload) - binary.LittleEndian.PutUint32(reallocPayload[len(payload):], h.Sum32()) - payload = reallocPayload - } - m.BaseLayer = BaseLayer{Contents: data[:m.Length], Payload: payload} - - return nil -} - -func (m RadioTap) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - buf := make([]byte, 1024) - - buf[0] = m.Version - buf[1] = 0 - - binary.LittleEndian.PutUint32(buf[4:8], uint32(m.Present)) - - offset := uint16(4) - - for (binary.LittleEndian.Uint32(buf[offset:offset+4]) & 0x80000000) != 0 { - offset += 4 - } - - offset += 4 - - if m.Present.TSFT() { - offset += align(offset, 8) - binary.LittleEndian.PutUint64(buf[offset:offset+8], m.TSFT) - offset += 8 - } - - if m.Present.Flags() { - buf[offset] = uint8(m.Flags) - offset++ - } - - if m.Present.Rate() { - buf[offset] = uint8(m.Rate) - offset++ - } - - if m.Present.Channel() { - offset += align(offset, 2) - binary.LittleEndian.PutUint16(buf[offset:offset+2], uint16(m.ChannelFrequency)) - offset += 2 - binary.LittleEndian.PutUint16(buf[offset:offset+2], uint16(m.ChannelFlags)) - offset += 2 - } - - if m.Present.FHSS() { - binary.LittleEndian.PutUint16(buf[offset:offset+2], m.FHSS) - offset += 2 - } - - if m.Present.DBMAntennaSignal() { - buf[offset] = byte(m.DBMAntennaSignal) - offset++ - } - - if m.Present.DBMAntennaNoise() { - buf[offset] = byte(m.DBMAntennaNoise) - offset++ - } - - if m.Present.LockQuality() { - offset += align(offset, 2) - binary.LittleEndian.PutUint16(buf[offset:offset+2], m.LockQuality) - offset += 2 - } - - if m.Present.TxAttenuation() { - offset += align(offset, 2) - binary.LittleEndian.PutUint16(buf[offset:offset+2], m.TxAttenuation) - offset += 2 - } - - if m.Present.DBTxAttenuation() { - offset += align(offset, 2) - binary.LittleEndian.PutUint16(buf[offset:offset+2], m.DBTxAttenuation) - offset += 2 - } - - if m.Present.DBMTxPower() { - buf[offset] = byte(m.DBMTxPower) - offset++ - } - - if m.Present.Antenna() { - buf[offset] = uint8(m.Antenna) - offset++ - } - - if m.Present.DBAntennaSignal() { - buf[offset] = uint8(m.DBAntennaSignal) - offset++ - } - - if m.Present.DBAntennaNoise() { - buf[offset] = uint8(m.DBAntennaNoise) - offset++ - } - - if m.Present.RxFlags() { - offset += align(offset, 2) - binary.LittleEndian.PutUint16(buf[offset:offset+2], uint16(m.RxFlags)) - offset += 2 - } - - if m.Present.TxFlags() { - offset += align(offset, 2) - binary.LittleEndian.PutUint16(buf[offset:offset+2], uint16(m.TxFlags)) - offset += 2 - } - - if m.Present.RtsRetries() { - buf[offset] = m.RtsRetries - offset++ - } - - if m.Present.DataRetries() { - buf[offset] = m.DataRetries - offset++ - } - - if m.Present.MCS() { - buf[offset] = uint8(m.MCS.Known) - buf[offset+1] = uint8(m.MCS.Flags) - buf[offset+2] = uint8(m.MCS.MCS) - - offset += 3 - } - - if m.Present.AMPDUStatus() { - offset += align(offset, 4) - - binary.LittleEndian.PutUint32(buf[offset:offset+4], m.AMPDUStatus.Reference) - binary.LittleEndian.PutUint16(buf[offset+4:offset+6], uint16(m.AMPDUStatus.Flags)) - - buf[offset+6] = m.AMPDUStatus.CRC - - offset += 8 - } - - if m.Present.VHT() { - offset += align(offset, 2) - - binary.LittleEndian.PutUint16(buf[offset:], uint16(m.VHT.Known)) - - buf[offset+2] = uint8(m.VHT.Flags) - buf[offset+3] = uint8(m.VHT.Bandwidth) - buf[offset+4] = uint8(m.VHT.MCSNSS[0]) - buf[offset+5] = uint8(m.VHT.MCSNSS[1]) - buf[offset+6] = uint8(m.VHT.MCSNSS[2]) - buf[offset+7] = uint8(m.VHT.MCSNSS[3]) - buf[offset+8] = uint8(m.VHT.Coding) - buf[offset+9] = uint8(m.VHT.GroupId) - - binary.LittleEndian.PutUint16(buf[offset+10:offset+12], m.VHT.PartialAID) - - offset += 12 - } - - packetBuf, err := b.PrependBytes(int(offset)) - - if err != nil { - return err - } - - if opts.FixLengths { - m.Length = offset - } - - binary.LittleEndian.PutUint16(buf[2:4], m.Length) - - copy(packetBuf, buf) - - return nil -} - -func (m *RadioTap) CanDecode() gopacket.LayerClass { return LayerTypeRadioTap } -func (m *RadioTap) NextLayerType() gopacket.LayerType { return LayerTypeDot11 } diff --git a/vendor/github.com/google/gopacket/layers/radius.go b/vendor/github.com/google/gopacket/layers/radius.go deleted file mode 100644 index c43ea29451..0000000000 --- a/vendor/github.com/google/gopacket/layers/radius.go +++ /dev/null @@ -1,560 +0,0 @@ -// Copyright 2020 The GoPacket Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style license that can be found -// in the LICENSE file in the root of the source tree. - -package layers - -import ( - "encoding/binary" - "fmt" - - "github.com/google/gopacket" -) - -const ( - // RFC 2865 3. Packet Format - // `The minimum length is 20 and maximum length is 4096.` - radiusMinimumRecordSizeInBytes int = 20 - radiusMaximumRecordSizeInBytes int = 4096 - - // RFC 2865 5. Attributes - // `The Length field is one octet, and indicates the length of this Attribute including the Type, Length and Value fields.` - // `The Value field is zero or more octets and contains information specific to the Attribute.` - radiusAttributesMinimumRecordSizeInBytes int = 2 -) - -// RADIUS represents a Remote Authentication Dial In User Service layer. -type RADIUS struct { - BaseLayer - - Code RADIUSCode - Identifier RADIUSIdentifier - Length RADIUSLength - Authenticator RADIUSAuthenticator - Attributes []RADIUSAttribute -} - -// RADIUSCode represents packet type. -type RADIUSCode uint8 - -// constants that define RADIUSCode. -const ( - RADIUSCodeAccessRequest RADIUSCode = 1 // RFC2865 3. Packet Format - RADIUSCodeAccessAccept RADIUSCode = 2 // RFC2865 3. Packet Format - RADIUSCodeAccessReject RADIUSCode = 3 // RFC2865 3. Packet Format - RADIUSCodeAccountingRequest RADIUSCode = 4 // RFC2865 3. Packet Format - RADIUSCodeAccountingResponse RADIUSCode = 5 // RFC2865 3. Packet Format - RADIUSCodeAccessChallenge RADIUSCode = 11 // RFC2865 3. Packet Format - RADIUSCodeStatusServer RADIUSCode = 12 // RFC2865 3. Packet Format (experimental) - RADIUSCodeStatusClient RADIUSCode = 13 // RFC2865 3. Packet Format (experimental) - RADIUSCodeReserved RADIUSCode = 255 // RFC2865 3. Packet Format -) - -// String returns a string version of a RADIUSCode. -func (t RADIUSCode) String() (s string) { - switch t { - case RADIUSCodeAccessRequest: - s = "Access-Request" - case RADIUSCodeAccessAccept: - s = "Access-Accept" - case RADIUSCodeAccessReject: - s = "Access-Reject" - case RADIUSCodeAccountingRequest: - s = "Accounting-Request" - case RADIUSCodeAccountingResponse: - s = "Accounting-Response" - case RADIUSCodeAccessChallenge: - s = "Access-Challenge" - case RADIUSCodeStatusServer: - s = "Status-Server" - case RADIUSCodeStatusClient: - s = "Status-Client" - case RADIUSCodeReserved: - s = "Reserved" - default: - s = fmt.Sprintf("Unknown(%d)", t) - } - return -} - -// RADIUSIdentifier represents packet identifier. -type RADIUSIdentifier uint8 - -// RADIUSLength represents packet length. -type RADIUSLength uint16 - -// RADIUSAuthenticator represents authenticator. -type RADIUSAuthenticator [16]byte - -// RADIUSAttribute represents attributes. -type RADIUSAttribute struct { - Type RADIUSAttributeType - Length RADIUSAttributeLength - Value RADIUSAttributeValue -} - -// RADIUSAttributeType represents attribute type. -type RADIUSAttributeType uint8 - -// constants that define RADIUSAttributeType. -const ( - RADIUSAttributeTypeUserName RADIUSAttributeType = 1 // RFC2865 5.1. User-Name - RADIUSAttributeTypeUserPassword RADIUSAttributeType = 2 // RFC2865 5.2. User-Password - RADIUSAttributeTypeCHAPPassword RADIUSAttributeType = 3 // RFC2865 5.3. CHAP-Password - RADIUSAttributeTypeNASIPAddress RADIUSAttributeType = 4 // RFC2865 5.4. NAS-IP-Address - RADIUSAttributeTypeNASPort RADIUSAttributeType = 5 // RFC2865 5.5. NAS-Port - RADIUSAttributeTypeServiceType RADIUSAttributeType = 6 // RFC2865 5.6. Service-Type - RADIUSAttributeTypeFramedProtocol RADIUSAttributeType = 7 // RFC2865 5.7. Framed-Protocol - RADIUSAttributeTypeFramedIPAddress RADIUSAttributeType = 8 // RFC2865 5.8. Framed-IP-Address - RADIUSAttributeTypeFramedIPNetmask RADIUSAttributeType = 9 // RFC2865 5.9. Framed-IP-Netmask - RADIUSAttributeTypeFramedRouting RADIUSAttributeType = 10 // RFC2865 5.10. Framed-Routing - RADIUSAttributeTypeFilterId RADIUSAttributeType = 11 // RFC2865 5.11. Filter-Id - RADIUSAttributeTypeFramedMTU RADIUSAttributeType = 12 // RFC2865 5.12. Framed-MTU - RADIUSAttributeTypeFramedCompression RADIUSAttributeType = 13 // RFC2865 5.13. Framed-Compression - RADIUSAttributeTypeLoginIPHost RADIUSAttributeType = 14 // RFC2865 5.14. Login-IP-Host - RADIUSAttributeTypeLoginService RADIUSAttributeType = 15 // RFC2865 5.15. Login-Service - RADIUSAttributeTypeLoginTCPPort RADIUSAttributeType = 16 // RFC2865 5.16. Login-TCP-Port - RADIUSAttributeTypeReplyMessage RADIUSAttributeType = 18 // RFC2865 5.18. Reply-Message - RADIUSAttributeTypeCallbackNumber RADIUSAttributeType = 19 // RFC2865 5.19. Callback-Number - RADIUSAttributeTypeCallbackId RADIUSAttributeType = 20 // RFC2865 5.20. Callback-Id - RADIUSAttributeTypeFramedRoute RADIUSAttributeType = 22 // RFC2865 5.22. Framed-Route - RADIUSAttributeTypeFramedIPXNetwork RADIUSAttributeType = 23 // RFC2865 5.23. Framed-IPX-Network - RADIUSAttributeTypeState RADIUSAttributeType = 24 // RFC2865 5.24. State - RADIUSAttributeTypeClass RADIUSAttributeType = 25 // RFC2865 5.25. Class - RADIUSAttributeTypeVendorSpecific RADIUSAttributeType = 26 // RFC2865 5.26. Vendor-Specific - RADIUSAttributeTypeSessionTimeout RADIUSAttributeType = 27 // RFC2865 5.27. Session-Timeout - RADIUSAttributeTypeIdleTimeout RADIUSAttributeType = 28 // RFC2865 5.28. Idle-Timeout - RADIUSAttributeTypeTerminationAction RADIUSAttributeType = 29 // RFC2865 5.29. Termination-Action - RADIUSAttributeTypeCalledStationId RADIUSAttributeType = 30 // RFC2865 5.30. Called-Station-Id - RADIUSAttributeTypeCallingStationId RADIUSAttributeType = 31 // RFC2865 5.31. Calling-Station-Id - RADIUSAttributeTypeNASIdentifier RADIUSAttributeType = 32 // RFC2865 5.32. NAS-Identifier - RADIUSAttributeTypeProxyState RADIUSAttributeType = 33 // RFC2865 5.33. Proxy-State - RADIUSAttributeTypeLoginLATService RADIUSAttributeType = 34 // RFC2865 5.34. Login-LAT-Service - RADIUSAttributeTypeLoginLATNode RADIUSAttributeType = 35 // RFC2865 5.35. Login-LAT-Node - RADIUSAttributeTypeLoginLATGroup RADIUSAttributeType = 36 // RFC2865 5.36. Login-LAT-Group - RADIUSAttributeTypeFramedAppleTalkLink RADIUSAttributeType = 37 // RFC2865 5.37. Framed-AppleTalk-Link - RADIUSAttributeTypeFramedAppleTalkNetwork RADIUSAttributeType = 38 // RFC2865 5.38. Framed-AppleTalk-Network - RADIUSAttributeTypeFramedAppleTalkZone RADIUSAttributeType = 39 // RFC2865 5.39. Framed-AppleTalk-Zone - RADIUSAttributeTypeAcctStatusType RADIUSAttributeType = 40 // RFC2866 5.1. Acct-Status-Type - RADIUSAttributeTypeAcctDelayTime RADIUSAttributeType = 41 // RFC2866 5.2. Acct-Delay-Time - RADIUSAttributeTypeAcctInputOctets RADIUSAttributeType = 42 // RFC2866 5.3. Acct-Input-Octets - RADIUSAttributeTypeAcctOutputOctets RADIUSAttributeType = 43 // RFC2866 5.4. Acct-Output-Octets - RADIUSAttributeTypeAcctSessionId RADIUSAttributeType = 44 // RFC2866 5.5. Acct-Session-Id - RADIUSAttributeTypeAcctAuthentic RADIUSAttributeType = 45 // RFC2866 5.6. Acct-Authentic - RADIUSAttributeTypeAcctSessionTime RADIUSAttributeType = 46 // RFC2866 5.7. Acct-Session-Time - RADIUSAttributeTypeAcctInputPackets RADIUSAttributeType = 47 // RFC2866 5.8. Acct-Input-Packets - RADIUSAttributeTypeAcctOutputPackets RADIUSAttributeType = 48 // RFC2866 5.9. Acct-Output-Packets - RADIUSAttributeTypeAcctTerminateCause RADIUSAttributeType = 49 // RFC2866 5.10. Acct-Terminate-Cause - RADIUSAttributeTypeAcctMultiSessionId RADIUSAttributeType = 50 // RFC2866 5.11. Acct-Multi-Session-Id - RADIUSAttributeTypeAcctLinkCount RADIUSAttributeType = 51 // RFC2866 5.12. Acct-Link-Count - RADIUSAttributeTypeAcctInputGigawords RADIUSAttributeType = 52 // RFC2869 5.1. Acct-Input-Gigawords - RADIUSAttributeTypeAcctOutputGigawords RADIUSAttributeType = 53 // RFC2869 5.2. Acct-Output-Gigawords - RADIUSAttributeTypeEventTimestamp RADIUSAttributeType = 55 // RFC2869 5.3. Event-Timestamp - RADIUSAttributeTypeCHAPChallenge RADIUSAttributeType = 60 // RFC2865 5.40. CHAP-Challenge - RADIUSAttributeTypeNASPortType RADIUSAttributeType = 61 // RFC2865 5.41. NAS-Port-Type - RADIUSAttributeTypePortLimit RADIUSAttributeType = 62 // RFC2865 5.42. Port-Limit - RADIUSAttributeTypeLoginLATPort RADIUSAttributeType = 63 // RFC2865 5.43. Login-LAT-Port - RADIUSAttributeTypeTunnelType RADIUSAttributeType = 64 // RFC2868 3.1. Tunnel-Type - RADIUSAttributeTypeTunnelMediumType RADIUSAttributeType = 65 // RFC2868 3.2. Tunnel-Medium-Type - RADIUSAttributeTypeTunnelClientEndpoint RADIUSAttributeType = 66 // RFC2868 3.3. Tunnel-Client-Endpoint - RADIUSAttributeTypeTunnelServerEndpoint RADIUSAttributeType = 67 // RFC2868 3.4. Tunnel-Server-Endpoint - RADIUSAttributeTypeAcctTunnelConnection RADIUSAttributeType = 68 // RFC2867 4.1. Acct-Tunnel-Connection - RADIUSAttributeTypeTunnelPassword RADIUSAttributeType = 69 // RFC2868 3.5. Tunnel-Password - RADIUSAttributeTypeARAPPassword RADIUSAttributeType = 70 // RFC2869 5.4. ARAP-Password - RADIUSAttributeTypeARAPFeatures RADIUSAttributeType = 71 // RFC2869 5.5. ARAP-Features - RADIUSAttributeTypeARAPZoneAccess RADIUSAttributeType = 72 // RFC2869 5.6. ARAP-Zone-Access - RADIUSAttributeTypeARAPSecurity RADIUSAttributeType = 73 // RFC2869 5.7. ARAP-Security - RADIUSAttributeTypeARAPSecurityData RADIUSAttributeType = 74 // RFC2869 5.8. ARAP-Security-Data - RADIUSAttributeTypePasswordRetry RADIUSAttributeType = 75 // RFC2869 5.9. Password-Retry - RADIUSAttributeTypePrompt RADIUSAttributeType = 76 // RFC2869 5.10. Prompt - RADIUSAttributeTypeConnectInfo RADIUSAttributeType = 77 // RFC2869 5.11. Connect-Info - RADIUSAttributeTypeConfigurationToken RADIUSAttributeType = 78 // RFC2869 5.12. Configuration-Token - RADIUSAttributeTypeEAPMessage RADIUSAttributeType = 79 // RFC2869 5.13. EAP-Message - RADIUSAttributeTypeMessageAuthenticator RADIUSAttributeType = 80 // RFC2869 5.14. Message-Authenticator - RADIUSAttributeTypeTunnelPrivateGroupID RADIUSAttributeType = 81 // RFC2868 3.6. Tunnel-Private-Group-ID - RADIUSAttributeTypeTunnelAssignmentID RADIUSAttributeType = 82 // RFC2868 3.7. Tunnel-Assignment-ID - RADIUSAttributeTypeTunnelPreference RADIUSAttributeType = 83 // RFC2868 3.8. Tunnel-Preference - RADIUSAttributeTypeARAPChallengeResponse RADIUSAttributeType = 84 // RFC2869 5.15. ARAP-Challenge-Response - RADIUSAttributeTypeAcctInterimInterval RADIUSAttributeType = 85 // RFC2869 5.16. Acct-Interim-Interval - RADIUSAttributeTypeAcctTunnelPacketsLost RADIUSAttributeType = 86 // RFC2867 4.2. Acct-Tunnel-Packets-Lost - RADIUSAttributeTypeNASPortId RADIUSAttributeType = 87 // RFC2869 5.17. NAS-Port-Id - RADIUSAttributeTypeFramedPool RADIUSAttributeType = 88 // RFC2869 5.18. Framed-Pool - RADIUSAttributeTypeTunnelClientAuthID RADIUSAttributeType = 90 // RFC2868 3.9. Tunnel-Client-Auth-ID - RADIUSAttributeTypeTunnelServerAuthID RADIUSAttributeType = 91 // RFC2868 3.10. Tunnel-Server-Auth-ID -) - -// RADIUSAttributeType represents attribute length. -type RADIUSAttributeLength uint8 - -// RADIUSAttributeType represents attribute value. -type RADIUSAttributeValue []byte - -// String returns a string version of a RADIUSAttributeType. -func (t RADIUSAttributeType) String() (s string) { - switch t { - case RADIUSAttributeTypeUserName: - s = "User-Name" - case RADIUSAttributeTypeUserPassword: - s = "User-Password" - case RADIUSAttributeTypeCHAPPassword: - s = "CHAP-Password" - case RADIUSAttributeTypeNASIPAddress: - s = "NAS-IP-Address" - case RADIUSAttributeTypeNASPort: - s = "NAS-Port" - case RADIUSAttributeTypeServiceType: - s = "Service-Type" - case RADIUSAttributeTypeFramedProtocol: - s = "Framed-Protocol" - case RADIUSAttributeTypeFramedIPAddress: - s = "Framed-IP-Address" - case RADIUSAttributeTypeFramedIPNetmask: - s = "Framed-IP-Netmask" - case RADIUSAttributeTypeFramedRouting: - s = "Framed-Routing" - case RADIUSAttributeTypeFilterId: - s = "Filter-Id" - case RADIUSAttributeTypeFramedMTU: - s = "Framed-MTU" - case RADIUSAttributeTypeFramedCompression: - s = "Framed-Compression" - case RADIUSAttributeTypeLoginIPHost: - s = "Login-IP-Host" - case RADIUSAttributeTypeLoginService: - s = "Login-Service" - case RADIUSAttributeTypeLoginTCPPort: - s = "Login-TCP-Port" - case RADIUSAttributeTypeReplyMessage: - s = "Reply-Message" - case RADIUSAttributeTypeCallbackNumber: - s = "Callback-Number" - case RADIUSAttributeTypeCallbackId: - s = "Callback-Id" - case RADIUSAttributeTypeFramedRoute: - s = "Framed-Route" - case RADIUSAttributeTypeFramedIPXNetwork: - s = "Framed-IPX-Network" - case RADIUSAttributeTypeState: - s = "State" - case RADIUSAttributeTypeClass: - s = "Class" - case RADIUSAttributeTypeVendorSpecific: - s = "Vendor-Specific" - case RADIUSAttributeTypeSessionTimeout: - s = "Session-Timeout" - case RADIUSAttributeTypeIdleTimeout: - s = "Idle-Timeout" - case RADIUSAttributeTypeTerminationAction: - s = "Termination-Action" - case RADIUSAttributeTypeCalledStationId: - s = "Called-Station-Id" - case RADIUSAttributeTypeCallingStationId: - s = "Calling-Station-Id" - case RADIUSAttributeTypeNASIdentifier: - s = "NAS-Identifier" - case RADIUSAttributeTypeProxyState: - s = "Proxy-State" - case RADIUSAttributeTypeLoginLATService: - s = "Login-LAT-Service" - case RADIUSAttributeTypeLoginLATNode: - s = "Login-LAT-Node" - case RADIUSAttributeTypeLoginLATGroup: - s = "Login-LAT-Group" - case RADIUSAttributeTypeFramedAppleTalkLink: - s = "Framed-AppleTalk-Link" - case RADIUSAttributeTypeFramedAppleTalkNetwork: - s = "Framed-AppleTalk-Network" - case RADIUSAttributeTypeFramedAppleTalkZone: - s = "Framed-AppleTalk-Zone" - case RADIUSAttributeTypeAcctStatusType: - s = "Acct-Status-Type" - case RADIUSAttributeTypeAcctDelayTime: - s = "Acct-Delay-Time" - case RADIUSAttributeTypeAcctInputOctets: - s = "Acct-Input-Octets" - case RADIUSAttributeTypeAcctOutputOctets: - s = "Acct-Output-Octets" - case RADIUSAttributeTypeAcctSessionId: - s = "Acct-Session-Id" - case RADIUSAttributeTypeAcctAuthentic: - s = "Acct-Authentic" - case RADIUSAttributeTypeAcctSessionTime: - s = "Acct-Session-Time" - case RADIUSAttributeTypeAcctInputPackets: - s = "Acct-Input-Packets" - case RADIUSAttributeTypeAcctOutputPackets: - s = "Acct-Output-Packets" - case RADIUSAttributeTypeAcctTerminateCause: - s = "Acct-Terminate-Cause" - case RADIUSAttributeTypeAcctMultiSessionId: - s = "Acct-Multi-Session-Id" - case RADIUSAttributeTypeAcctLinkCount: - s = "Acct-Link-Count" - case RADIUSAttributeTypeAcctInputGigawords: - s = "Acct-Input-Gigawords" - case RADIUSAttributeTypeAcctOutputGigawords: - s = "Acct-Output-Gigawords" - case RADIUSAttributeTypeEventTimestamp: - s = "Event-Timestamp" - case RADIUSAttributeTypeCHAPChallenge: - s = "CHAP-Challenge" - case RADIUSAttributeTypeNASPortType: - s = "NAS-Port-Type" - case RADIUSAttributeTypePortLimit: - s = "Port-Limit" - case RADIUSAttributeTypeLoginLATPort: - s = "Login-LAT-Port" - case RADIUSAttributeTypeTunnelType: - s = "Tunnel-Type" - case RADIUSAttributeTypeTunnelMediumType: - s = "Tunnel-Medium-Type" - case RADIUSAttributeTypeTunnelClientEndpoint: - s = "Tunnel-Client-Endpoint" - case RADIUSAttributeTypeTunnelServerEndpoint: - s = "Tunnel-Server-Endpoint" - case RADIUSAttributeTypeAcctTunnelConnection: - s = "Acct-Tunnel-Connection" - case RADIUSAttributeTypeTunnelPassword: - s = "Tunnel-Password" - case RADIUSAttributeTypeARAPPassword: - s = "ARAP-Password" - case RADIUSAttributeTypeARAPFeatures: - s = "ARAP-Features" - case RADIUSAttributeTypeARAPZoneAccess: - s = "ARAP-Zone-Access" - case RADIUSAttributeTypeARAPSecurity: - s = "ARAP-Security" - case RADIUSAttributeTypeARAPSecurityData: - s = "ARAP-Security-Data" - case RADIUSAttributeTypePasswordRetry: - s = "Password-Retry" - case RADIUSAttributeTypePrompt: - s = "Prompt" - case RADIUSAttributeTypeConnectInfo: - s = "Connect-Info" - case RADIUSAttributeTypeConfigurationToken: - s = "Configuration-Token" - case RADIUSAttributeTypeEAPMessage: - s = "EAP-Message" - case RADIUSAttributeTypeMessageAuthenticator: - s = "Message-Authenticator" - case RADIUSAttributeTypeTunnelPrivateGroupID: - s = "Tunnel-Private-Group-ID" - case RADIUSAttributeTypeTunnelAssignmentID: - s = "Tunnel-Assignment-ID" - case RADIUSAttributeTypeTunnelPreference: - s = "Tunnel-Preference" - case RADIUSAttributeTypeARAPChallengeResponse: - s = "ARAP-Challenge-Response" - case RADIUSAttributeTypeAcctInterimInterval: - s = "Acct-Interim-Interval" - case RADIUSAttributeTypeAcctTunnelPacketsLost: - s = "Acct-Tunnel-Packets-Lost" - case RADIUSAttributeTypeNASPortId: - s = "NAS-Port-Id" - case RADIUSAttributeTypeFramedPool: - s = "Framed-Pool" - case RADIUSAttributeTypeTunnelClientAuthID: - s = "Tunnel-Client-Auth-ID" - case RADIUSAttributeTypeTunnelServerAuthID: - s = "Tunnel-Server-Auth-ID" - default: - s = fmt.Sprintf("Unknown(%d)", t) - } - return -} - -// Len returns the length of a RADIUS packet. -func (radius *RADIUS) Len() (int, error) { - n := radiusMinimumRecordSizeInBytes - for _, v := range radius.Attributes { - alen, err := attributeValueLength(v.Value) - if err != nil { - return 0, err - } - n += int(alen) + 2 // Added Type and Length - } - return n, nil -} - -// LayerType returns LayerTypeRADIUS. -func (radius *RADIUS) LayerType() gopacket.LayerType { - return LayerTypeRADIUS -} - -// DecodeFromBytes decodes the given bytes into this layer. -func (radius *RADIUS) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) > radiusMaximumRecordSizeInBytes { - df.SetTruncated() - return fmt.Errorf("RADIUS length %d too big", len(data)) - } - - if len(data) < radiusMinimumRecordSizeInBytes { - df.SetTruncated() - return fmt.Errorf("RADIUS length %d too short", len(data)) - } - - radius.BaseLayer = BaseLayer{Contents: data} - - radius.Code = RADIUSCode(data[0]) - radius.Identifier = RADIUSIdentifier(data[1]) - radius.Length = RADIUSLength(binary.BigEndian.Uint16(data[2:4])) - - if int(radius.Length) > radiusMaximumRecordSizeInBytes { - df.SetTruncated() - return fmt.Errorf("RADIUS length %d too big", radius.Length) - } - - if int(radius.Length) < radiusMinimumRecordSizeInBytes { - df.SetTruncated() - return fmt.Errorf("RADIUS length %d too short", radius.Length) - } - - // RFC 2865 3. Packet Format - // `If the packet is shorter than the Length field indicates, it MUST be silently discarded.` - if int(radius.Length) > len(data) { - df.SetTruncated() - return fmt.Errorf("RADIUS length %d too big", radius.Length) - } - - // RFC 2865 3. Packet Format - // `Octets outside the range of the Length field MUST be treated as padding and ignored on reception.` - if int(radius.Length) < len(data) { - df.SetTruncated() - data = data[:radius.Length] - } - - copy(radius.Authenticator[:], data[4:20]) - - if len(data) == radiusMinimumRecordSizeInBytes { - return nil - } - - pos := radiusMinimumRecordSizeInBytes - for { - if len(data) == pos { - break - } - - if len(data[pos:]) < radiusAttributesMinimumRecordSizeInBytes { - df.SetTruncated() - return fmt.Errorf("RADIUS attributes length %d too short", len(data[pos:])) - } - - attr := RADIUSAttribute{} - attr.Type = RADIUSAttributeType(data[pos]) - attr.Length = RADIUSAttributeLength(data[pos+1]) - - if int(attr.Length) > len(data[pos:]) { - df.SetTruncated() - return fmt.Errorf("RADIUS attributes length %d too big", attr.Length) - } - - if int(attr.Length) < radiusAttributesMinimumRecordSizeInBytes { - df.SetTruncated() - return fmt.Errorf("RADIUS attributes length %d too short", attr.Length) - } - - if int(attr.Length) > radiusAttributesMinimumRecordSizeInBytes { - attr.Value = make([]byte, attr.Length-2) - copy(attr.Value[:], data[pos+2:pos+int(attr.Length)]) - radius.Attributes = append(radius.Attributes, attr) - } - - pos += int(attr.Length) - } - - for _, v := range radius.Attributes { - if v.Type == RADIUSAttributeTypeEAPMessage { - radius.BaseLayer.Payload = append(radius.BaseLayer.Payload, v.Value...) - } - } - - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (radius *RADIUS) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - plen, err := radius.Len() - if err != nil { - return err - } - - if opts.FixLengths { - radius.Length = RADIUSLength(plen) - } - - data, err := b.PrependBytes(plen) - if err != nil { - return err - } - - data[0] = byte(radius.Code) - data[1] = byte(radius.Identifier) - binary.BigEndian.PutUint16(data[2:], uint16(radius.Length)) - copy(data[4:20], radius.Authenticator[:]) - - pos := radiusMinimumRecordSizeInBytes - for _, v := range radius.Attributes { - if opts.FixLengths { - v.Length, err = attributeValueLength(v.Value) - if err != nil { - return err - } - } - - data[pos] = byte(v.Type) - data[pos+1] = byte(v.Length) - copy(data[pos+2:], v.Value[:]) - - pos += len(v.Value) + 2 // Added Type and Length - } - - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (radius *RADIUS) CanDecode() gopacket.LayerClass { - return LayerTypeRADIUS -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (radius *RADIUS) NextLayerType() gopacket.LayerType { - if len(radius.BaseLayer.Payload) > 0 { - return LayerTypeEAP - } else { - return gopacket.LayerTypeZero - } -} - -// Payload returns the EAP Type-Data for EAP-Message attributes. -func (radius *RADIUS) Payload() []byte { - return radius.BaseLayer.Payload -} - -func decodeRADIUS(data []byte, p gopacket.PacketBuilder) error { - radius := &RADIUS{} - err := radius.DecodeFromBytes(data, p) - if err != nil { - return err - } - p.AddLayer(radius) - p.SetApplicationLayer(radius) - next := radius.NextLayerType() - if next == gopacket.LayerTypeZero { - return nil - } - return p.NextDecoder(next) -} - -func attributeValueLength(v []byte) (RADIUSAttributeLength, error) { - n := len(v) - if n > 255 { - return 0, fmt.Errorf("RADIUS attribute value length %d too long", n) - } else { - return RADIUSAttributeLength(n), nil - } -} diff --git a/vendor/github.com/google/gopacket/layers/rmcp.go b/vendor/github.com/google/gopacket/layers/rmcp.go deleted file mode 100644 index 5474fee4ad..0000000000 --- a/vendor/github.com/google/gopacket/layers/rmcp.go +++ /dev/null @@ -1,170 +0,0 @@ -// Copyright 2019 The GoPacket Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style license that can be found -// in the LICENSE file in the root of the source tree. - -package layers - -// This file implements the ASF-RMCP header specified in section 3.2.2.2 of -// https://www.dmtf.org/sites/default/files/standards/documents/DSP0136.pdf - -import ( - "fmt" - - "github.com/google/gopacket" -) - -// RMCPClass is the class of a RMCP layer's payload, e.g. ASF or IPMI. This is a -// 4-bit unsigned int on the wire; all but 6 (ASF), 7 (IPMI) and 8 (OEM-defined) -// are currently reserved. -type RMCPClass uint8 - -// LayerType returns the payload layer type corresponding to a RMCP class. -func (c RMCPClass) LayerType() gopacket.LayerType { - if lt := rmcpClassLayerTypes[uint8(c)]; lt != 0 { - return lt - } - return gopacket.LayerTypePayload -} - -func (c RMCPClass) String() string { - return fmt.Sprintf("%v(%v)", uint8(c), c.LayerType()) -} - -const ( - // RMCPVersion1 identifies RMCP v1.0 in the Version header field. Lower - // values are considered legacy, while higher values are reserved by the - // specification. - RMCPVersion1 uint8 = 0x06 - - // RMCPNormal indicates a "normal" message, i.e. not an acknowledgement. - RMCPNormal uint8 = 0 - - // RMCPAck indicates a message is acknowledging a received normal message. - RMCPAck uint8 = 1 << 7 - - // RMCPClassASF identifies an RMCP message as containing an ASF-RMCP - // payload. - RMCPClassASF RMCPClass = 0x06 - - // RMCPClassIPMI identifies an RMCP message as containing an IPMI payload. - RMCPClassIPMI RMCPClass = 0x07 - - // RMCPClassOEM identifies an RMCP message as containing an OEM-defined - // payload. - RMCPClassOEM RMCPClass = 0x08 -) - -var ( - rmcpClassLayerTypes = [16]gopacket.LayerType{ - RMCPClassASF: LayerTypeASF, - // RMCPClassIPMI is to implement; RMCPClassOEM is deliberately not - // implemented, so we return LayerTypePayload - } -) - -// RegisterRMCPLayerType allows specifying that the payload of a RMCP packet of -// a certain class should processed by the provided layer type. This overrides -// any existing registrations, including defaults. -func RegisterRMCPLayerType(c RMCPClass, l gopacket.LayerType) { - rmcpClassLayerTypes[c] = l -} - -// RMCP describes the format of an RMCP header, which forms a UDP payload. See -// section 3.2.2.2. -type RMCP struct { - BaseLayer - - // Version identifies the version of the RMCP header. 0x06 indicates RMCP - // v1.0; lower values are legacy, higher values are reserved. - Version uint8 - - // Sequence is the sequence number assicated with the message. Note that - // this rolls over to 0 after 254, not 255. Seq num 255 indicates the - // receiver must not send an ACK. - Sequence uint8 - - // Ack indicates whether this packet is an acknowledgement. If it is, the - // payload will be empty. - Ack bool - - // Class idicates the structure of the payload. There are only 2^4 valid - // values, however there is no uint4 data type. N.B. the Ack bit has been - // split off into another field. The most significant 4 bits of this field - // will always be 0. - Class RMCPClass -} - -// LayerType returns LayerTypeRMCP. It partially satisfies Layer and -// SerializableLayer. -func (*RMCP) LayerType() gopacket.LayerType { - return LayerTypeRMCP -} - -// CanDecode returns LayerTypeRMCP. It partially satisfies DecodingLayer. -func (r *RMCP) CanDecode() gopacket.LayerClass { - return r.LayerType() -} - -// DecodeFromBytes makes the layer represent the provided bytes. It partially -// satisfies DecodingLayer. -func (r *RMCP) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 4 { - df.SetTruncated() - return fmt.Errorf("invalid RMCP header, length %v less than 4", - len(data)) - } - - r.BaseLayer.Contents = data[:4] - r.BaseLayer.Payload = data[4:] - - r.Version = uint8(data[0]) - // 1 byte reserved - r.Sequence = uint8(data[2]) - r.Ack = data[3]&RMCPAck != 0 - r.Class = RMCPClass(data[3] & 0xF) - return nil -} - -// NextLayerType returns the data layer of this RMCP layer. This partially -// satisfies DecodingLayer. -func (r *RMCP) NextLayerType() gopacket.LayerType { - return r.Class.LayerType() -} - -// Payload returns the data layer. It partially satisfies ApplicationLayer. -func (r *RMCP) Payload() []byte { - return r.BaseLayer.Payload -} - -// SerializeTo writes the serialized fom of this layer into the SerializeBuffer, -// partially satisfying SerializableLayer. -func (r *RMCP) SerializeTo(b gopacket.SerializeBuffer, _ gopacket.SerializeOptions) error { - // The IPMI v1.5 spec contains a pad byte for frame sizes of certain lengths - // to work around issues in LAN chips. This is no longer necessary as of - // IPMI v2.0 (renamed to "legacy pad") so we do not attempt to add it. The - // same approach is taken by FreeIPMI: - // http://git.savannah.gnu.org/cgit/freeipmi.git/tree/libfreeipmi/interface/ipmi-lan-interface.c?id=b5ffcd38317daf42074458879f4c55ba6804a595#n836 - bytes, err := b.PrependBytes(4) - if err != nil { - return err - } - bytes[0] = r.Version - bytes[1] = 0x00 - bytes[2] = r.Sequence - bytes[3] = bool2uint8(r.Ack)<<7 | uint8(r.Class) // thanks, BFD layer - return nil -} - -// decodeRMCP decodes the byte slice into an RMCP type, and sets the application -// layer to it. -func decodeRMCP(data []byte, p gopacket.PacketBuilder) error { - rmcp := &RMCP{} - err := rmcp.DecodeFromBytes(data, p) - p.AddLayer(rmcp) - p.SetApplicationLayer(rmcp) - if err != nil { - return err - } - return p.NextDecoder(rmcp.NextLayerType()) -} diff --git a/vendor/github.com/google/gopacket/layers/rudp.go b/vendor/github.com/google/gopacket/layers/rudp.go deleted file mode 100644 index 8435129b94..0000000000 --- a/vendor/github.com/google/gopacket/layers/rudp.go +++ /dev/null @@ -1,93 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "fmt" - "github.com/google/gopacket" -) - -type RUDP struct { - BaseLayer - SYN, ACK, EACK, RST, NUL bool - Version uint8 - HeaderLength uint8 - SrcPort, DstPort RUDPPort - DataLength uint16 - Seq, Ack, Checksum uint32 - VariableHeaderArea []byte - // RUDPHeaderSyn contains SYN information for the RUDP packet, - // if the SYN flag is set - *RUDPHeaderSYN - // RUDPHeaderEack contains EACK information for the RUDP packet, - // if the EACK flag is set. - *RUDPHeaderEACK -} - -type RUDPHeaderSYN struct { - MaxOutstandingSegments, MaxSegmentSize, OptionFlags uint16 -} - -type RUDPHeaderEACK struct { - SeqsReceivedOK []uint32 -} - -// LayerType returns gopacket.LayerTypeRUDP. -func (r *RUDP) LayerType() gopacket.LayerType { return LayerTypeRUDP } - -func decodeRUDP(data []byte, p gopacket.PacketBuilder) error { - r := &RUDP{ - SYN: data[0]&0x80 != 0, - ACK: data[0]&0x40 != 0, - EACK: data[0]&0x20 != 0, - RST: data[0]&0x10 != 0, - NUL: data[0]&0x08 != 0, - Version: data[0] & 0x3, - HeaderLength: data[1], - SrcPort: RUDPPort(data[2]), - DstPort: RUDPPort(data[3]), - DataLength: binary.BigEndian.Uint16(data[4:6]), - Seq: binary.BigEndian.Uint32(data[6:10]), - Ack: binary.BigEndian.Uint32(data[10:14]), - Checksum: binary.BigEndian.Uint32(data[14:18]), - } - if r.HeaderLength < 9 { - return fmt.Errorf("RUDP packet with too-short header length %d", r.HeaderLength) - } - hlen := int(r.HeaderLength) * 2 - r.Contents = data[:hlen] - r.Payload = data[hlen : hlen+int(r.DataLength)] - r.VariableHeaderArea = data[18:hlen] - headerData := r.VariableHeaderArea - switch { - case r.SYN: - if len(headerData) != 6 { - return fmt.Errorf("RUDP packet invalid SYN header length: %d", len(headerData)) - } - r.RUDPHeaderSYN = &RUDPHeaderSYN{ - MaxOutstandingSegments: binary.BigEndian.Uint16(headerData[:2]), - MaxSegmentSize: binary.BigEndian.Uint16(headerData[2:4]), - OptionFlags: binary.BigEndian.Uint16(headerData[4:6]), - } - case r.EACK: - if len(headerData)%4 != 0 { - return fmt.Errorf("RUDP packet invalid EACK header length: %d", len(headerData)) - } - r.RUDPHeaderEACK = &RUDPHeaderEACK{make([]uint32, len(headerData)/4)} - for i := 0; i < len(headerData); i += 4 { - r.SeqsReceivedOK[i/4] = binary.BigEndian.Uint32(headerData[i : i+4]) - } - } - p.AddLayer(r) - p.SetTransportLayer(r) - return p.NextDecoder(gopacket.LayerTypePayload) -} - -func (r *RUDP) TransportFlow() gopacket.Flow { - return gopacket.NewFlow(EndpointRUDPPort, []byte{byte(r.SrcPort)}, []byte{byte(r.DstPort)}) -} diff --git a/vendor/github.com/google/gopacket/layers/sctp.go b/vendor/github.com/google/gopacket/layers/sctp.go deleted file mode 100644 index 511176e560..0000000000 --- a/vendor/github.com/google/gopacket/layers/sctp.go +++ /dev/null @@ -1,746 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - "hash/crc32" - - "github.com/google/gopacket" -) - -// SCTP contains information on the top level of an SCTP packet. -type SCTP struct { - BaseLayer - SrcPort, DstPort SCTPPort - VerificationTag uint32 - Checksum uint32 - sPort, dPort []byte -} - -// LayerType returns gopacket.LayerTypeSCTP -func (s *SCTP) LayerType() gopacket.LayerType { return LayerTypeSCTP } - -func decodeSCTP(data []byte, p gopacket.PacketBuilder) error { - sctp := &SCTP{} - err := sctp.DecodeFromBytes(data, p) - p.AddLayer(sctp) - p.SetTransportLayer(sctp) - if err != nil { - return err - } - return p.NextDecoder(sctpChunkTypePrefixDecoder) -} - -var sctpChunkTypePrefixDecoder = gopacket.DecodeFunc(decodeWithSCTPChunkTypePrefix) - -// TransportFlow returns a flow based on the source and destination SCTP port. -func (s *SCTP) TransportFlow() gopacket.Flow { - return gopacket.NewFlow(EndpointSCTPPort, s.sPort, s.dPort) -} - -func decodeWithSCTPChunkTypePrefix(data []byte, p gopacket.PacketBuilder) error { - chunkType := SCTPChunkType(data[0]) - return chunkType.Decode(data, p) -} - -// SerializeTo is for gopacket.SerializableLayer. -func (s SCTP) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - bytes, err := b.PrependBytes(12) - if err != nil { - return err - } - binary.BigEndian.PutUint16(bytes[0:2], uint16(s.SrcPort)) - binary.BigEndian.PutUint16(bytes[2:4], uint16(s.DstPort)) - binary.BigEndian.PutUint32(bytes[4:8], s.VerificationTag) - if opts.ComputeChecksums { - // Note: MakeTable(Castagnoli) actually only creates the table once, then - // passes back a singleton on every other call, so this shouldn't cause - // excessive memory allocation. - binary.LittleEndian.PutUint32(bytes[8:12], crc32.Checksum(b.Bytes(), crc32.MakeTable(crc32.Castagnoli))) - } - return nil -} - -func (sctp *SCTP) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 12 { - return errors.New("Invalid SCTP common header length") - } - sctp.SrcPort = SCTPPort(binary.BigEndian.Uint16(data[:2])) - sctp.sPort = data[:2] - sctp.DstPort = SCTPPort(binary.BigEndian.Uint16(data[2:4])) - sctp.dPort = data[2:4] - sctp.VerificationTag = binary.BigEndian.Uint32(data[4:8]) - sctp.Checksum = binary.BigEndian.Uint32(data[8:12]) - sctp.BaseLayer = BaseLayer{data[:12], data[12:]} - - return nil -} - -func (t *SCTP) CanDecode() gopacket.LayerClass { - return LayerTypeSCTP -} - -func (t *SCTP) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -// SCTPChunk contains the common fields in all SCTP chunks. -type SCTPChunk struct { - BaseLayer - Type SCTPChunkType - Flags uint8 - Length uint16 - // ActualLength is the total length of an SCTP chunk, including padding. - // SCTP chunks start and end on 4-byte boundaries. So if a chunk has a length - // of 18, it means that it has data up to and including byte 18, then padding - // up to the next 4-byte boundary, 20. In this case, Length would be 18, and - // ActualLength would be 20. - ActualLength int -} - -func roundUpToNearest4(i int) int { - if i%4 == 0 { - return i - } - return i + 4 - (i % 4) -} - -func decodeSCTPChunk(data []byte) (SCTPChunk, error) { - length := binary.BigEndian.Uint16(data[2:4]) - if length < 4 { - return SCTPChunk{}, errors.New("invalid SCTP chunk length") - } - actual := roundUpToNearest4(int(length)) - ct := SCTPChunkType(data[0]) - - // For SCTP Data, use a separate layer for the payload - delta := 0 - if ct == SCTPChunkTypeData { - delta = int(actual) - int(length) - actual = 16 - } - - return SCTPChunk{ - Type: ct, - Flags: data[1], - Length: length, - ActualLength: actual, - BaseLayer: BaseLayer{data[:actual], data[actual : len(data)-delta]}, - }, nil -} - -// SCTPParameter is a TLV parameter inside a SCTPChunk. -type SCTPParameter struct { - Type uint16 - Length uint16 - ActualLength int - Value []byte -} - -func decodeSCTPParameter(data []byte) SCTPParameter { - length := binary.BigEndian.Uint16(data[2:4]) - return SCTPParameter{ - Type: binary.BigEndian.Uint16(data[0:2]), - Length: length, - Value: data[4:length], - ActualLength: roundUpToNearest4(int(length)), - } -} - -func (p SCTPParameter) Bytes() []byte { - length := 4 + len(p.Value) - data := make([]byte, roundUpToNearest4(length)) - binary.BigEndian.PutUint16(data[0:2], p.Type) - binary.BigEndian.PutUint16(data[2:4], uint16(length)) - copy(data[4:], p.Value) - return data -} - -// SCTPUnknownChunkType is the layer type returned when we don't recognize the -// chunk type. Since there's a length in a known location, we can skip over -// it even if we don't know what it is, and continue parsing the rest of the -// chunks. This chunk is stored as an ErrorLayer in the packet. -type SCTPUnknownChunkType struct { - SCTPChunk - bytes []byte -} - -func decodeSCTPChunkTypeUnknown(data []byte, p gopacket.PacketBuilder) error { - chunk, err := decodeSCTPChunk(data) - if err != nil { - return err - } - sc := &SCTPUnknownChunkType{SCTPChunk: chunk} - sc.bytes = data[:sc.ActualLength] - p.AddLayer(sc) - p.SetErrorLayer(sc) - return p.NextDecoder(gopacket.DecodeFunc(decodeWithSCTPChunkTypePrefix)) -} - -// SerializeTo is for gopacket.SerializableLayer. -func (s SCTPUnknownChunkType) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - bytes, err := b.PrependBytes(s.ActualLength) - if err != nil { - return err - } - copy(bytes, s.bytes) - return nil -} - -// LayerType returns gopacket.LayerTypeSCTPUnknownChunkType. -func (s *SCTPUnknownChunkType) LayerType() gopacket.LayerType { return LayerTypeSCTPUnknownChunkType } - -// Payload returns all bytes in this header, including the decoded Type, Length, -// and Flags. -func (s *SCTPUnknownChunkType) Payload() []byte { return s.bytes } - -// Error implements ErrorLayer. -func (s *SCTPUnknownChunkType) Error() error { - return fmt.Errorf("No decode method available for SCTP chunk type %s", s.Type) -} - -// SCTPData is the SCTP Data chunk layer. -type SCTPData struct { - SCTPChunk - Unordered, BeginFragment, EndFragment bool - TSN uint32 - StreamId uint16 - StreamSequence uint16 - PayloadProtocol SCTPPayloadProtocol -} - -// LayerType returns gopacket.LayerTypeSCTPData. -func (s *SCTPData) LayerType() gopacket.LayerType { return LayerTypeSCTPData } - -// SCTPPayloadProtocol represents a payload protocol -type SCTPPayloadProtocol uint32 - -// SCTPPayloadProtocol constonts from http://www.iana.org/assignments/sctp-parameters/sctp-parameters.xhtml -const ( - SCTPProtocolReserved SCTPPayloadProtocol = 0 - SCTPPayloadUIA = 1 - SCTPPayloadM2UA = 2 - SCTPPayloadM3UA = 3 - SCTPPayloadSUA = 4 - SCTPPayloadM2PA = 5 - SCTPPayloadV5UA = 6 - SCTPPayloadH248 = 7 - SCTPPayloadBICC = 8 - SCTPPayloadTALI = 9 - SCTPPayloadDUA = 10 - SCTPPayloadASAP = 11 - SCTPPayloadENRP = 12 - SCTPPayloadH323 = 13 - SCTPPayloadQIPC = 14 - SCTPPayloadSIMCO = 15 - SCTPPayloadDDPSegment = 16 - SCTPPayloadDDPStream = 17 - SCTPPayloadS1AP = 18 -) - -func (p SCTPPayloadProtocol) String() string { - switch p { - case SCTPProtocolReserved: - return "Reserved" - case SCTPPayloadUIA: - return "UIA" - case SCTPPayloadM2UA: - return "M2UA" - case SCTPPayloadM3UA: - return "M3UA" - case SCTPPayloadSUA: - return "SUA" - case SCTPPayloadM2PA: - return "M2PA" - case SCTPPayloadV5UA: - return "V5UA" - case SCTPPayloadH248: - return "H.248" - case SCTPPayloadBICC: - return "BICC" - case SCTPPayloadTALI: - return "TALI" - case SCTPPayloadDUA: - return "DUA" - case SCTPPayloadASAP: - return "ASAP" - case SCTPPayloadENRP: - return "ENRP" - case SCTPPayloadH323: - return "H.323" - case SCTPPayloadQIPC: - return "QIPC" - case SCTPPayloadSIMCO: - return "SIMCO" - case SCTPPayloadDDPSegment: - return "DDPSegment" - case SCTPPayloadDDPStream: - return "DDPStream" - case SCTPPayloadS1AP: - return "S1AP" - } - return fmt.Sprintf("Unknown(%d)", p) -} - -func decodeSCTPData(data []byte, p gopacket.PacketBuilder) error { - chunk, err := decodeSCTPChunk(data) - if err != nil { - return err - } - sc := &SCTPData{ - SCTPChunk: chunk, - Unordered: data[1]&0x4 != 0, - BeginFragment: data[1]&0x2 != 0, - EndFragment: data[1]&0x1 != 0, - TSN: binary.BigEndian.Uint32(data[4:8]), - StreamId: binary.BigEndian.Uint16(data[8:10]), - StreamSequence: binary.BigEndian.Uint16(data[10:12]), - PayloadProtocol: SCTPPayloadProtocol(binary.BigEndian.Uint32(data[12:16])), - } - // Length is the length in bytes of the data, INCLUDING the 16-byte header. - p.AddLayer(sc) - return p.NextDecoder(gopacket.LayerTypePayload) -} - -// SerializeTo is for gopacket.SerializableLayer. -func (sc SCTPData) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - payload := b.Bytes() - // Pad the payload to a 32 bit boundary - if rem := len(payload) % 4; rem != 0 { - b.AppendBytes(4 - rem) - } - length := 16 - bytes, err := b.PrependBytes(length) - if err != nil { - return err - } - bytes[0] = uint8(sc.Type) - flags := uint8(0) - if sc.Unordered { - flags |= 0x4 - } - if sc.BeginFragment { - flags |= 0x2 - } - if sc.EndFragment { - flags |= 0x1 - } - bytes[1] = flags - binary.BigEndian.PutUint16(bytes[2:4], uint16(length+len(payload))) - binary.BigEndian.PutUint32(bytes[4:8], sc.TSN) - binary.BigEndian.PutUint16(bytes[8:10], sc.StreamId) - binary.BigEndian.PutUint16(bytes[10:12], sc.StreamSequence) - binary.BigEndian.PutUint32(bytes[12:16], uint32(sc.PayloadProtocol)) - return nil -} - -// SCTPInitParameter is a parameter for an SCTP Init or InitAck packet. -type SCTPInitParameter SCTPParameter - -// SCTPInit is used as the return value for both SCTPInit and SCTPInitAck -// messages. -type SCTPInit struct { - SCTPChunk - InitiateTag uint32 - AdvertisedReceiverWindowCredit uint32 - OutboundStreams, InboundStreams uint16 - InitialTSN uint32 - Parameters []SCTPInitParameter -} - -// LayerType returns either gopacket.LayerTypeSCTPInit or gopacket.LayerTypeSCTPInitAck. -func (sc *SCTPInit) LayerType() gopacket.LayerType { - if sc.Type == SCTPChunkTypeInitAck { - return LayerTypeSCTPInitAck - } - // sc.Type == SCTPChunkTypeInit - return LayerTypeSCTPInit -} - -func decodeSCTPInit(data []byte, p gopacket.PacketBuilder) error { - chunk, err := decodeSCTPChunk(data) - if err != nil { - return err - } - sc := &SCTPInit{ - SCTPChunk: chunk, - InitiateTag: binary.BigEndian.Uint32(data[4:8]), - AdvertisedReceiverWindowCredit: binary.BigEndian.Uint32(data[8:12]), - OutboundStreams: binary.BigEndian.Uint16(data[12:14]), - InboundStreams: binary.BigEndian.Uint16(data[14:16]), - InitialTSN: binary.BigEndian.Uint32(data[16:20]), - } - paramData := data[20:sc.ActualLength] - for len(paramData) > 0 { - p := SCTPInitParameter(decodeSCTPParameter(paramData)) - paramData = paramData[p.ActualLength:] - sc.Parameters = append(sc.Parameters, p) - } - p.AddLayer(sc) - return p.NextDecoder(gopacket.DecodeFunc(decodeWithSCTPChunkTypePrefix)) -} - -// SerializeTo is for gopacket.SerializableLayer. -func (sc SCTPInit) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - var payload []byte - for _, param := range sc.Parameters { - payload = append(payload, SCTPParameter(param).Bytes()...) - } - length := 20 + len(payload) - bytes, err := b.PrependBytes(roundUpToNearest4(length)) - if err != nil { - return err - } - bytes[0] = uint8(sc.Type) - bytes[1] = sc.Flags - binary.BigEndian.PutUint16(bytes[2:4], uint16(length)) - binary.BigEndian.PutUint32(bytes[4:8], sc.InitiateTag) - binary.BigEndian.PutUint32(bytes[8:12], sc.AdvertisedReceiverWindowCredit) - binary.BigEndian.PutUint16(bytes[12:14], sc.OutboundStreams) - binary.BigEndian.PutUint16(bytes[14:16], sc.InboundStreams) - binary.BigEndian.PutUint32(bytes[16:20], sc.InitialTSN) - copy(bytes[20:], payload) - return nil -} - -// SCTPSack is the SCTP Selective ACK chunk layer. -type SCTPSack struct { - SCTPChunk - CumulativeTSNAck uint32 - AdvertisedReceiverWindowCredit uint32 - NumGapACKs, NumDuplicateTSNs uint16 - GapACKs []uint16 - DuplicateTSNs []uint32 -} - -// LayerType return LayerTypeSCTPSack -func (sc *SCTPSack) LayerType() gopacket.LayerType { - return LayerTypeSCTPSack -} - -func decodeSCTPSack(data []byte, p gopacket.PacketBuilder) error { - chunk, err := decodeSCTPChunk(data) - if err != nil { - return err - } - sc := &SCTPSack{ - SCTPChunk: chunk, - CumulativeTSNAck: binary.BigEndian.Uint32(data[4:8]), - AdvertisedReceiverWindowCredit: binary.BigEndian.Uint32(data[8:12]), - NumGapACKs: binary.BigEndian.Uint16(data[12:14]), - NumDuplicateTSNs: binary.BigEndian.Uint16(data[14:16]), - } - // We maximize gapAcks and dupTSNs here so we're not allocating tons - // of memory based on a user-controlable field. Our maximums are not exact, - // but should give us sane defaults... we'll still hit slice boundaries and - // fail if the user-supplied values are too high (in the for loops below), but - // the amount of memory we'll have allocated because of that should be small - // (< sc.ActualLength) - gapAcks := sc.SCTPChunk.ActualLength / 2 - dupTSNs := (sc.SCTPChunk.ActualLength - gapAcks*2) / 4 - if gapAcks > int(sc.NumGapACKs) { - gapAcks = int(sc.NumGapACKs) - } - if dupTSNs > int(sc.NumDuplicateTSNs) { - dupTSNs = int(sc.NumDuplicateTSNs) - } - sc.GapACKs = make([]uint16, 0, gapAcks) - sc.DuplicateTSNs = make([]uint32, 0, dupTSNs) - bytesRemaining := data[16:] - for i := 0; i < int(sc.NumGapACKs); i++ { - sc.GapACKs = append(sc.GapACKs, binary.BigEndian.Uint16(bytesRemaining[:2])) - bytesRemaining = bytesRemaining[2:] - } - for i := 0; i < int(sc.NumDuplicateTSNs); i++ { - sc.DuplicateTSNs = append(sc.DuplicateTSNs, binary.BigEndian.Uint32(bytesRemaining[:4])) - bytesRemaining = bytesRemaining[4:] - } - p.AddLayer(sc) - return p.NextDecoder(gopacket.DecodeFunc(decodeWithSCTPChunkTypePrefix)) -} - -// SerializeTo is for gopacket.SerializableLayer. -func (sc SCTPSack) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - length := 16 + 2*len(sc.GapACKs) + 4*len(sc.DuplicateTSNs) - bytes, err := b.PrependBytes(roundUpToNearest4(length)) - if err != nil { - return err - } - bytes[0] = uint8(sc.Type) - bytes[1] = sc.Flags - binary.BigEndian.PutUint16(bytes[2:4], uint16(length)) - binary.BigEndian.PutUint32(bytes[4:8], sc.CumulativeTSNAck) - binary.BigEndian.PutUint32(bytes[8:12], sc.AdvertisedReceiverWindowCredit) - binary.BigEndian.PutUint16(bytes[12:14], uint16(len(sc.GapACKs))) - binary.BigEndian.PutUint16(bytes[14:16], uint16(len(sc.DuplicateTSNs))) - for i, v := range sc.GapACKs { - binary.BigEndian.PutUint16(bytes[16+i*2:], v) - } - offset := 16 + 2*len(sc.GapACKs) - for i, v := range sc.DuplicateTSNs { - binary.BigEndian.PutUint32(bytes[offset+i*4:], v) - } - return nil -} - -// SCTPHeartbeatParameter is the parameter type used by SCTP heartbeat and -// heartbeat ack layers. -type SCTPHeartbeatParameter SCTPParameter - -// SCTPHeartbeat is the SCTP heartbeat layer, also used for heatbeat ack. -type SCTPHeartbeat struct { - SCTPChunk - Parameters []SCTPHeartbeatParameter -} - -// LayerType returns gopacket.LayerTypeSCTPHeartbeat. -func (sc *SCTPHeartbeat) LayerType() gopacket.LayerType { - if sc.Type == SCTPChunkTypeHeartbeatAck { - return LayerTypeSCTPHeartbeatAck - } - // sc.Type == SCTPChunkTypeHeartbeat - return LayerTypeSCTPHeartbeat -} - -func decodeSCTPHeartbeat(data []byte, p gopacket.PacketBuilder) error { - chunk, err := decodeSCTPChunk(data) - if err != nil { - return err - } - sc := &SCTPHeartbeat{ - SCTPChunk: chunk, - } - paramData := data[4:sc.Length] - for len(paramData) > 0 { - p := SCTPHeartbeatParameter(decodeSCTPParameter(paramData)) - paramData = paramData[p.ActualLength:] - sc.Parameters = append(sc.Parameters, p) - } - p.AddLayer(sc) - return p.NextDecoder(gopacket.DecodeFunc(decodeWithSCTPChunkTypePrefix)) -} - -// SerializeTo is for gopacket.SerializableLayer. -func (sc SCTPHeartbeat) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - var payload []byte - for _, param := range sc.Parameters { - payload = append(payload, SCTPParameter(param).Bytes()...) - } - length := 4 + len(payload) - - bytes, err := b.PrependBytes(roundUpToNearest4(length)) - if err != nil { - return err - } - bytes[0] = uint8(sc.Type) - bytes[1] = sc.Flags - binary.BigEndian.PutUint16(bytes[2:4], uint16(length)) - copy(bytes[4:], payload) - return nil -} - -// SCTPErrorParameter is the parameter type used by SCTP Abort and Error layers. -type SCTPErrorParameter SCTPParameter - -// SCTPError is the SCTP error layer, also used for SCTP aborts. -type SCTPError struct { - SCTPChunk - Parameters []SCTPErrorParameter -} - -// LayerType returns LayerTypeSCTPAbort or LayerTypeSCTPError. -func (sc *SCTPError) LayerType() gopacket.LayerType { - if sc.Type == SCTPChunkTypeAbort { - return LayerTypeSCTPAbort - } - // sc.Type == SCTPChunkTypeError - return LayerTypeSCTPError -} - -func decodeSCTPError(data []byte, p gopacket.PacketBuilder) error { - // remarkably similar to decodeSCTPHeartbeat ;) - chunk, err := decodeSCTPChunk(data) - if err != nil { - return err - } - sc := &SCTPError{ - SCTPChunk: chunk, - } - paramData := data[4:sc.Length] - for len(paramData) > 0 { - p := SCTPErrorParameter(decodeSCTPParameter(paramData)) - paramData = paramData[p.ActualLength:] - sc.Parameters = append(sc.Parameters, p) - } - p.AddLayer(sc) - return p.NextDecoder(gopacket.DecodeFunc(decodeWithSCTPChunkTypePrefix)) -} - -// SerializeTo is for gopacket.SerializableLayer. -func (sc SCTPError) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - var payload []byte - for _, param := range sc.Parameters { - payload = append(payload, SCTPParameter(param).Bytes()...) - } - length := 4 + len(payload) - - bytes, err := b.PrependBytes(roundUpToNearest4(length)) - if err != nil { - return err - } - bytes[0] = uint8(sc.Type) - bytes[1] = sc.Flags - binary.BigEndian.PutUint16(bytes[2:4], uint16(length)) - copy(bytes[4:], payload) - return nil -} - -// SCTPShutdown is the SCTP shutdown layer. -type SCTPShutdown struct { - SCTPChunk - CumulativeTSNAck uint32 -} - -// LayerType returns gopacket.LayerTypeSCTPShutdown. -func (sc *SCTPShutdown) LayerType() gopacket.LayerType { return LayerTypeSCTPShutdown } - -func decodeSCTPShutdown(data []byte, p gopacket.PacketBuilder) error { - chunk, err := decodeSCTPChunk(data) - if err != nil { - return err - } - sc := &SCTPShutdown{ - SCTPChunk: chunk, - CumulativeTSNAck: binary.BigEndian.Uint32(data[4:8]), - } - p.AddLayer(sc) - return p.NextDecoder(gopacket.DecodeFunc(decodeWithSCTPChunkTypePrefix)) -} - -// SerializeTo is for gopacket.SerializableLayer. -func (sc SCTPShutdown) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - bytes, err := b.PrependBytes(8) - if err != nil { - return err - } - bytes[0] = uint8(sc.Type) - bytes[1] = sc.Flags - binary.BigEndian.PutUint16(bytes[2:4], 8) - binary.BigEndian.PutUint32(bytes[4:8], sc.CumulativeTSNAck) - return nil -} - -// SCTPShutdownAck is the SCTP shutdown layer. -type SCTPShutdownAck struct { - SCTPChunk -} - -// LayerType returns gopacket.LayerTypeSCTPShutdownAck. -func (sc *SCTPShutdownAck) LayerType() gopacket.LayerType { return LayerTypeSCTPShutdownAck } - -func decodeSCTPShutdownAck(data []byte, p gopacket.PacketBuilder) error { - chunk, err := decodeSCTPChunk(data) - if err != nil { - return err - } - sc := &SCTPShutdownAck{ - SCTPChunk: chunk, - } - p.AddLayer(sc) - return p.NextDecoder(gopacket.DecodeFunc(decodeWithSCTPChunkTypePrefix)) -} - -// SerializeTo is for gopacket.SerializableLayer. -func (sc SCTPShutdownAck) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - bytes, err := b.PrependBytes(4) - if err != nil { - return err - } - bytes[0] = uint8(sc.Type) - bytes[1] = sc.Flags - binary.BigEndian.PutUint16(bytes[2:4], 4) - return nil -} - -// SCTPCookieEcho is the SCTP Cookie Echo layer. -type SCTPCookieEcho struct { - SCTPChunk - Cookie []byte -} - -// LayerType returns gopacket.LayerTypeSCTPCookieEcho. -func (sc *SCTPCookieEcho) LayerType() gopacket.LayerType { return LayerTypeSCTPCookieEcho } - -func decodeSCTPCookieEcho(data []byte, p gopacket.PacketBuilder) error { - chunk, err := decodeSCTPChunk(data) - if err != nil { - return err - } - sc := &SCTPCookieEcho{ - SCTPChunk: chunk, - } - sc.Cookie = data[4:sc.Length] - p.AddLayer(sc) - return p.NextDecoder(gopacket.DecodeFunc(decodeWithSCTPChunkTypePrefix)) -} - -// SerializeTo is for gopacket.SerializableLayer. -func (sc SCTPCookieEcho) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - length := 4 + len(sc.Cookie) - bytes, err := b.PrependBytes(roundUpToNearest4(length)) - if err != nil { - return err - } - bytes[0] = uint8(sc.Type) - bytes[1] = sc.Flags - binary.BigEndian.PutUint16(bytes[2:4], uint16(length)) - copy(bytes[4:], sc.Cookie) - return nil -} - -// This struct is used by all empty SCTP chunks (currently CookieAck and -// ShutdownComplete). -type SCTPEmptyLayer struct { - SCTPChunk -} - -// LayerType returns either gopacket.LayerTypeSCTPShutdownComplete or -// LayerTypeSCTPCookieAck. -func (sc *SCTPEmptyLayer) LayerType() gopacket.LayerType { - if sc.Type == SCTPChunkTypeShutdownComplete { - return LayerTypeSCTPShutdownComplete - } - // sc.Type == SCTPChunkTypeCookieAck - return LayerTypeSCTPCookieAck -} - -func decodeSCTPEmptyLayer(data []byte, p gopacket.PacketBuilder) error { - chunk, err := decodeSCTPChunk(data) - if err != nil { - return err - } - sc := &SCTPEmptyLayer{ - SCTPChunk: chunk, - } - p.AddLayer(sc) - return p.NextDecoder(gopacket.DecodeFunc(decodeWithSCTPChunkTypePrefix)) -} - -// SerializeTo is for gopacket.SerializableLayer. -func (sc SCTPEmptyLayer) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - bytes, err := b.PrependBytes(4) - if err != nil { - return err - } - bytes[0] = uint8(sc.Type) - bytes[1] = sc.Flags - binary.BigEndian.PutUint16(bytes[2:4], 4) - return nil -} diff --git a/vendor/github.com/google/gopacket/layers/sflow.go b/vendor/github.com/google/gopacket/layers/sflow.go deleted file mode 100644 index bc1c9733ba..0000000000 --- a/vendor/github.com/google/gopacket/layers/sflow.go +++ /dev/null @@ -1,2567 +0,0 @@ -// Copyright 2014 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -/* -This layer decodes SFlow version 5 datagrams. - -The specification can be found here: http://sflow.org/sflow_version_5.txt - -Additional developer information about sflow can be found at: -http://sflow.org/developers/specifications.php - -And SFlow in general: -http://sflow.org/index.php - -Two forms of sample data are defined: compact and expanded. The -Specification has this to say: - - Compact and expand forms of counter and flow samples are defined. - An agent must not mix compact/expanded encodings. If an agent - will never use ifIndex numbers >= 2^24 then it must use compact - encodings for all interfaces. Otherwise the expanded formats must - be used for all interfaces. - -This decoder only supports the compact form, because that is the only -one for which data was available. - -The datagram is composed of one or more samples of type flow or counter, -and each sample is composed of one or more records describing the sample. -A sample is a single instance of sampled inforamtion, and each record in -the sample gives additional / supplimentary information about the sample. - -The following sample record types are supported: - - Raw Packet Header - opaque = flow_data; enterprise = 0; format = 1 - - Extended Switch Data - opaque = flow_data; enterprise = 0; format = 1001 - - Extended Router Data - opaque = flow_data; enterprise = 0; format = 1002 - - Extended Gateway Data - opaque = flow_data; enterprise = 0; format = 1003 - - Extended User Data - opaque = flow_data; enterprise = 0; format = 1004 - - Extended URL Data - opaque = flow_data; enterprise = 0; format = 1005 - -The following types of counter records are supported: - - Generic Interface Counters - see RFC 2233 - opaque = counter_data; enterprise = 0; format = 1 - - Ethernet Interface Counters - see RFC 2358 - opaque = counter_data; enterprise = 0; format = 2 - -SFlow is encoded using XDR (RFC4506). There are a few places -where the standard 4-byte fields are partitioned into two -bitfields of different lengths. I'm not sure why the designers -chose to pack together two values like this in some places, and -in others they use the entire 4-byte value to store a number that -will never be more than a few bits. In any case, there are a couple -of types defined to handle the decoding of these bitfields, and -that's why they're there. */ - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - "net" - - "github.com/google/gopacket" -) - -// SFlowRecord holds both flow sample records and counter sample records. -// A Record is the structure that actually holds the sampled data -// and / or counters. -type SFlowRecord interface { -} - -// SFlowDataSource encodes a 2-bit SFlowSourceFormat in its most significant -// 2 bits, and an SFlowSourceValue in its least significant 30 bits. -// These types and values define the meaning of the inteface information -// presented in the sample metadata. -type SFlowDataSource int32 - -func (sdc SFlowDataSource) decode() (SFlowSourceFormat, SFlowSourceValue) { - leftField := sdc >> 30 - rightField := uint32(0x3FFFFFFF) & uint32(sdc) - return SFlowSourceFormat(leftField), SFlowSourceValue(rightField) -} - -type SFlowDataSourceExpanded struct { - SourceIDClass SFlowSourceFormat - SourceIDIndex SFlowSourceValue -} - -func (sdce SFlowDataSourceExpanded) decode() (SFlowSourceFormat, SFlowSourceValue) { - leftField := sdce.SourceIDClass >> 30 - rightField := uint32(0x3FFFFFFF) & uint32(sdce.SourceIDIndex) - return SFlowSourceFormat(leftField), SFlowSourceValue(rightField) -} - -type SFlowSourceFormat uint32 - -type SFlowSourceValue uint32 - -const ( - SFlowTypeSingleInterface SFlowSourceFormat = 0 - SFlowTypePacketDiscarded SFlowSourceFormat = 1 - SFlowTypeMultipleDestinations SFlowSourceFormat = 2 -) - -func (sdf SFlowSourceFormat) String() string { - switch sdf { - case SFlowTypeSingleInterface: - return "Single Interface" - case SFlowTypePacketDiscarded: - return "Packet Discarded" - case SFlowTypeMultipleDestinations: - return "Multiple Destinations" - default: - return "UNKNOWN" - } -} - -func decodeSFlow(data []byte, p gopacket.PacketBuilder) error { - s := &SFlowDatagram{} - err := s.DecodeFromBytes(data, p) - if err != nil { - return err - } - p.AddLayer(s) - p.SetApplicationLayer(s) - return nil -} - -// SFlowDatagram is the outermost container which holds some basic information -// about the reporting agent, and holds at least one sample record -type SFlowDatagram struct { - BaseLayer - - DatagramVersion uint32 - AgentAddress net.IP - SubAgentID uint32 - SequenceNumber uint32 - AgentUptime uint32 - SampleCount uint32 - FlowSamples []SFlowFlowSample - CounterSamples []SFlowCounterSample -} - -// An SFlow datagram's outer container has the following -// structure: - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int sFlow version (2|4|5) | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int IP version of the Agent (1=v4|2=v6) | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / Agent IP address (v4=4byte|v6=16byte) / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int sub agent id | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int datagram sequence number | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int switch uptime in ms | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int n samples in datagram | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / n samples / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -// SFlowDataFormat encodes the EnterpriseID in the most -// significant 12 bits, and the SampleType in the least significant -// 20 bits. -type SFlowDataFormat uint32 - -func (sdf SFlowDataFormat) decode() (SFlowEnterpriseID, SFlowSampleType) { - leftField := sdf >> 12 - rightField := uint32(0xFFF) & uint32(sdf) - return SFlowEnterpriseID(leftField), SFlowSampleType(rightField) -} - -// SFlowEnterpriseID is used to differentiate between the -// official SFlow standard, and other, vendor-specific -// types of flow data. (Similiar to SNMP's enterprise MIB -// OIDs) Only the office SFlow Enterprise ID is decoded -// here. -type SFlowEnterpriseID uint32 - -const ( - SFlowStandard SFlowEnterpriseID = 0 -) - -func (eid SFlowEnterpriseID) String() string { - switch eid { - case SFlowStandard: - return "Standard SFlow" - default: - return "" - } -} - -func (eid SFlowEnterpriseID) GetType() SFlowEnterpriseID { - return SFlowStandard -} - -// SFlowSampleType specifies the type of sample. Only flow samples -// and counter samples are supported -type SFlowSampleType uint32 - -const ( - SFlowTypeFlowSample SFlowSampleType = 1 - SFlowTypeCounterSample SFlowSampleType = 2 - SFlowTypeExpandedFlowSample SFlowSampleType = 3 - SFlowTypeExpandedCounterSample SFlowSampleType = 4 -) - -func (st SFlowSampleType) GetType() SFlowSampleType { - switch st { - case SFlowTypeFlowSample: - return SFlowTypeFlowSample - case SFlowTypeCounterSample: - return SFlowTypeCounterSample - case SFlowTypeExpandedFlowSample: - return SFlowTypeExpandedFlowSample - case SFlowTypeExpandedCounterSample: - return SFlowTypeExpandedCounterSample - default: - panic("Invalid Sample Type") - } -} - -func (st SFlowSampleType) String() string { - switch st { - case SFlowTypeFlowSample: - return "Flow Sample" - case SFlowTypeCounterSample: - return "Counter Sample" - case SFlowTypeExpandedFlowSample: - return "Expanded Flow Sample" - case SFlowTypeExpandedCounterSample: - return "Expanded Counter Sample" - default: - return "" - } -} - -func (s *SFlowDatagram) LayerType() gopacket.LayerType { return LayerTypeSFlow } - -func (d *SFlowDatagram) Payload() []byte { return nil } - -func (d *SFlowDatagram) CanDecode() gopacket.LayerClass { return LayerTypeSFlow } - -func (d *SFlowDatagram) NextLayerType() gopacket.LayerType { return gopacket.LayerTypePayload } - -// SFlowIPType determines what form the IP address being decoded will -// take. This is an XDR union type allowing for both IPv4 and IPv6 -type SFlowIPType uint32 - -const ( - SFlowIPv4 SFlowIPType = 1 - SFlowIPv6 SFlowIPType = 2 -) - -func (s SFlowIPType) String() string { - switch s { - case SFlowIPv4: - return "IPv4" - case SFlowIPv6: - return "IPv6" - default: - return "" - } -} - -func (s SFlowIPType) Length() int { - switch s { - case SFlowIPv4: - return 4 - case SFlowIPv6: - return 16 - default: - return 0 - } -} - -func (s *SFlowDatagram) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - var agentAddressType SFlowIPType - - data, s.DatagramVersion = data[4:], binary.BigEndian.Uint32(data[:4]) - data, agentAddressType = data[4:], SFlowIPType(binary.BigEndian.Uint32(data[:4])) - data, s.AgentAddress = data[agentAddressType.Length():], data[:agentAddressType.Length()] - data, s.SubAgentID = data[4:], binary.BigEndian.Uint32(data[:4]) - data, s.SequenceNumber = data[4:], binary.BigEndian.Uint32(data[:4]) - data, s.AgentUptime = data[4:], binary.BigEndian.Uint32(data[:4]) - data, s.SampleCount = data[4:], binary.BigEndian.Uint32(data[:4]) - - if s.SampleCount < 1 { - return fmt.Errorf("SFlow Datagram has invalid sample length: %d", s.SampleCount) - } - for i := uint32(0); i < s.SampleCount; i++ { - sdf := SFlowDataFormat(binary.BigEndian.Uint32(data[:4])) - _, sampleType := sdf.decode() - switch sampleType { - case SFlowTypeFlowSample: - if flowSample, err := decodeFlowSample(&data, false); err == nil { - s.FlowSamples = append(s.FlowSamples, flowSample) - } else { - return err - } - case SFlowTypeCounterSample: - if counterSample, err := decodeCounterSample(&data, false); err == nil { - s.CounterSamples = append(s.CounterSamples, counterSample) - } else { - return err - } - case SFlowTypeExpandedFlowSample: - if flowSample, err := decodeFlowSample(&data, true); err == nil { - s.FlowSamples = append(s.FlowSamples, flowSample) - } else { - return err - } - case SFlowTypeExpandedCounterSample: - if counterSample, err := decodeCounterSample(&data, true); err == nil { - s.CounterSamples = append(s.CounterSamples, counterSample) - } else { - return err - } - - default: - return fmt.Errorf("Unsupported SFlow sample type %d", sampleType) - } - } - return nil -} - -// SFlowFlowSample represents a sampled packet and contains -// one or more records describing the packet -type SFlowFlowSample struct { - EnterpriseID SFlowEnterpriseID - Format SFlowSampleType - SampleLength uint32 - SequenceNumber uint32 - SourceIDClass SFlowSourceFormat - SourceIDIndex SFlowSourceValue - SamplingRate uint32 - SamplePool uint32 - Dropped uint32 - InputInterfaceFormat uint32 - InputInterface uint32 - OutputInterfaceFormat uint32 - OutputInterface uint32 - RecordCount uint32 - Records []SFlowRecord -} - -// Flow samples have the following structure. Note -// the bit fields to encode the Enterprise ID and the -// Flow record format: type 1 - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | sample length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int sample sequence number | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// |id type | src id index value | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int sampling rate | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int sample pool | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int drops | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int input ifIndex | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int output ifIndex | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int number of records | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / flow records / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -// Flow samples have the following structure. -// Flow record format: type 3 - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | sample length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int sample sequence number | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int src id type | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int src id index value | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int sampling rate | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int sample pool | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int drops | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int input interface format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int input interface value | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int output interface format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int output interface value | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int number of records | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / flow records / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -type SFlowFlowDataFormat uint32 - -func (fdf SFlowFlowDataFormat) decode() (SFlowEnterpriseID, SFlowFlowRecordType) { - leftField := fdf >> 12 - rightField := uint32(0xFFF) & uint32(fdf) - return SFlowEnterpriseID(leftField), SFlowFlowRecordType(rightField) -} - -func (fs SFlowFlowSample) GetRecords() []SFlowRecord { - return fs.Records -} - -func (fs SFlowFlowSample) GetType() SFlowSampleType { - return SFlowTypeFlowSample -} - -func skipRecord(data *[]byte) { - recordLength := int(binary.BigEndian.Uint32((*data)[4:])) - *data = (*data)[(recordLength+((4-recordLength)%4))+8:] -} - -func decodeFlowSample(data *[]byte, expanded bool) (SFlowFlowSample, error) { - s := SFlowFlowSample{} - var sdf SFlowDataFormat - *data, sdf = (*data)[4:], SFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - var sdc SFlowDataSource - - s.EnterpriseID, s.Format = sdf.decode() - if len(*data) < 4 { - return SFlowFlowSample{}, errors.New("ethernet counters too small") - } - *data, s.SampleLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowFlowSample{}, errors.New("ethernet counters too small") - } - *data, s.SequenceNumber = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if expanded { - if len(*data) < 4 { - return SFlowFlowSample{}, errors.New("ethernet counters too small") - } - *data, s.SourceIDClass = (*data)[4:], SFlowSourceFormat(binary.BigEndian.Uint32((*data)[:4])) - if len(*data) < 4 { - return SFlowFlowSample{}, errors.New("ethernet counters too small") - } - *data, s.SourceIDIndex = (*data)[4:], SFlowSourceValue(binary.BigEndian.Uint32((*data)[:4])) - } else { - if len(*data) < 4 { - return SFlowFlowSample{}, errors.New("ethernet counters too small") - } - *data, sdc = (*data)[4:], SFlowDataSource(binary.BigEndian.Uint32((*data)[:4])) - s.SourceIDClass, s.SourceIDIndex = sdc.decode() - } - if len(*data) < 4 { - return SFlowFlowSample{}, errors.New("ethernet counters too small") - } - *data, s.SamplingRate = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowFlowSample{}, errors.New("ethernet counters too small") - } - *data, s.SamplePool = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowFlowSample{}, errors.New("ethernet counters too small") - } - *data, s.Dropped = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - - if expanded { - if len(*data) < 4 { - return SFlowFlowSample{}, errors.New("ethernet counters too small") - } - *data, s.InputInterfaceFormat = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowFlowSample{}, errors.New("ethernet counters too small") - } - *data, s.InputInterface = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowFlowSample{}, errors.New("ethernet counters too small") - } - *data, s.OutputInterfaceFormat = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowFlowSample{}, errors.New("ethernet counters too small") - } - *data, s.OutputInterface = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - } else { - if len(*data) < 4 { - return SFlowFlowSample{}, errors.New("ethernet counters too small") - } - *data, s.InputInterface = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowFlowSample{}, errors.New("ethernet counters too small") - } - *data, s.OutputInterface = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - } - if len(*data) < 4 { - return SFlowFlowSample{}, errors.New("ethernet counters too small") - } - *data, s.RecordCount = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - - for i := uint32(0); i < s.RecordCount; i++ { - rdf := SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - enterpriseID, flowRecordType := rdf.decode() - - // Try to decode when EnterpriseID is 0 signaling - // default sflow structs are used according specification - // Unexpected behavior detected for e.g. with pmacct - if enterpriseID == 0 { - switch flowRecordType { - case SFlowTypeRawPacketFlow: - if record, err := decodeRawPacketFlowRecord(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeExtendedUserFlow: - if record, err := decodeExtendedUserFlow(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeExtendedUrlFlow: - if record, err := decodeExtendedURLRecord(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeExtendedSwitchFlow: - if record, err := decodeExtendedSwitchFlowRecord(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeExtendedRouterFlow: - if record, err := decodeExtendedRouterFlowRecord(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeExtendedGatewayFlow: - if record, err := decodeExtendedGatewayFlowRecord(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeEthernetFrameFlow: - if record, err := decodeEthernetFrameFlowRecord(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeIpv4Flow: - if record, err := decodeSFlowIpv4Record(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeIpv6Flow: - if record, err := decodeSFlowIpv6Record(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeExtendedMlpsFlow: - // TODO - skipRecord(data) - return s, errors.New("skipping TypeExtendedMlpsFlow") - case SFlowTypeExtendedNatFlow: - // TODO - skipRecord(data) - return s, errors.New("skipping TypeExtendedNatFlow") - case SFlowTypeExtendedMlpsTunnelFlow: - // TODO - skipRecord(data) - return s, errors.New("skipping TypeExtendedMlpsTunnelFlow") - case SFlowTypeExtendedMlpsVcFlow: - // TODO - skipRecord(data) - return s, errors.New("skipping TypeExtendedMlpsVcFlow") - case SFlowTypeExtendedMlpsFecFlow: - // TODO - skipRecord(data) - return s, errors.New("skipping TypeExtendedMlpsFecFlow") - case SFlowTypeExtendedMlpsLvpFecFlow: - // TODO - skipRecord(data) - return s, errors.New("skipping TypeExtendedMlpsLvpFecFlow") - case SFlowTypeExtendedVlanFlow: - // TODO - skipRecord(data) - return s, errors.New("skipping TypeExtendedVlanFlow") - case SFlowTypeExtendedIpv4TunnelEgressFlow: - if record, err := decodeExtendedIpv4TunnelEgress(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeExtendedIpv4TunnelIngressFlow: - if record, err := decodeExtendedIpv4TunnelIngress(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeExtendedIpv6TunnelEgressFlow: - if record, err := decodeExtendedIpv6TunnelEgress(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeExtendedIpv6TunnelIngressFlow: - if record, err := decodeExtendedIpv6TunnelIngress(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeExtendedDecapsulateEgressFlow: - if record, err := decodeExtendedDecapsulateEgress(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeExtendedDecapsulateIngressFlow: - if record, err := decodeExtendedDecapsulateIngress(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeExtendedVniEgressFlow: - if record, err := decodeExtendedVniEgress(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeExtendedVniIngressFlow: - if record, err := decodeExtendedVniIngress(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - default: - return s, fmt.Errorf("Unsupported flow record type: %d", flowRecordType) - } - } else { - skipRecord(data) - } - } - return s, nil -} - -// Counter samples report information about various counter -// objects. Typically these are items like IfInOctets, or -// CPU / Memory stats, etc. SFlow will report these at regular -// intervals as configured on the agent. If one were sufficiently -// industrious, this could be used to replace the typical -// SNMP polling used for such things. -type SFlowCounterSample struct { - EnterpriseID SFlowEnterpriseID - Format SFlowSampleType - SampleLength uint32 - SequenceNumber uint32 - SourceIDClass SFlowSourceFormat - SourceIDIndex SFlowSourceValue - RecordCount uint32 - Records []SFlowRecord -} - -// Counter samples have the following structure: - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int sample sequence number | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// |id type | src id index value | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | int number of records | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / counter records / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -type SFlowCounterDataFormat uint32 - -func (cdf SFlowCounterDataFormat) decode() (SFlowEnterpriseID, SFlowCounterRecordType) { - leftField := cdf >> 12 - rightField := uint32(0xFFF) & uint32(cdf) - return SFlowEnterpriseID(leftField), SFlowCounterRecordType(rightField) -} - -// GetRecords will return a slice of interface types -// representing records. A type switch can be used to -// get at the underlying SFlowCounterRecordType. -func (cs SFlowCounterSample) GetRecords() []SFlowRecord { - return cs.Records -} - -// GetType will report the type of sample. Only the -// compact form of counter samples is supported -func (cs SFlowCounterSample) GetType() SFlowSampleType { - return SFlowTypeCounterSample -} - -type SFlowCounterRecordType uint32 - -const ( - SFlowTypeGenericInterfaceCounters SFlowCounterRecordType = 1 - SFlowTypeEthernetInterfaceCounters SFlowCounterRecordType = 2 - SFlowTypeTokenRingInterfaceCounters SFlowCounterRecordType = 3 - SFlowType100BaseVGInterfaceCounters SFlowCounterRecordType = 4 - SFlowTypeVLANCounters SFlowCounterRecordType = 5 - SFlowTypeLACPCounters SFlowCounterRecordType = 7 - SFlowTypeProcessorCounters SFlowCounterRecordType = 1001 - SFlowTypeOpenflowPortCounters SFlowCounterRecordType = 1004 - SFlowTypePORTNAMECounters SFlowCounterRecordType = 1005 - SFLowTypeAPPRESOURCESCounters SFlowCounterRecordType = 2203 - SFlowTypeOVSDPCounters SFlowCounterRecordType = 2207 -) - -func (cr SFlowCounterRecordType) String() string { - switch cr { - case SFlowTypeGenericInterfaceCounters: - return "Generic Interface Counters" - case SFlowTypeEthernetInterfaceCounters: - return "Ethernet Interface Counters" - case SFlowTypeTokenRingInterfaceCounters: - return "Token Ring Interface Counters" - case SFlowType100BaseVGInterfaceCounters: - return "100BaseVG Interface Counters" - case SFlowTypeVLANCounters: - return "VLAN Counters" - case SFlowTypeLACPCounters: - return "LACP Counters" - case SFlowTypeProcessorCounters: - return "Processor Counters" - case SFlowTypeOpenflowPortCounters: - return "Openflow Port Counters" - case SFlowTypePORTNAMECounters: - return "PORT NAME Counters" - case SFLowTypeAPPRESOURCESCounters: - return "App Resources Counters" - case SFlowTypeOVSDPCounters: - return "OVSDP Counters" - default: - return "" - - } -} - -func decodeCounterSample(data *[]byte, expanded bool) (SFlowCounterSample, error) { - s := SFlowCounterSample{} - var sdc SFlowDataSource - var sdce SFlowDataSourceExpanded - var sdf SFlowDataFormat - - *data, sdf = (*data)[4:], SFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - s.EnterpriseID, s.Format = sdf.decode() - *data, s.SampleLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, s.SequenceNumber = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if expanded { - *data, sdce = (*data)[8:], SFlowDataSourceExpanded{SFlowSourceFormat(binary.BigEndian.Uint32((*data)[:4])), SFlowSourceValue(binary.BigEndian.Uint32((*data)[4:8]))} - s.SourceIDClass, s.SourceIDIndex = sdce.decode() - } else { - *data, sdc = (*data)[4:], SFlowDataSource(binary.BigEndian.Uint32((*data)[:4])) - s.SourceIDClass, s.SourceIDIndex = sdc.decode() - } - *data, s.RecordCount = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - - for i := uint32(0); i < s.RecordCount; i++ { - cdf := SFlowCounterDataFormat(binary.BigEndian.Uint32((*data)[:4])) - _, counterRecordType := cdf.decode() - switch counterRecordType { - case SFlowTypeGenericInterfaceCounters: - if record, err := decodeGenericInterfaceCounters(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeEthernetInterfaceCounters: - if record, err := decodeEthernetCounters(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeTokenRingInterfaceCounters: - skipRecord(data) - return s, errors.New("skipping TypeTokenRingInterfaceCounters") - case SFlowType100BaseVGInterfaceCounters: - skipRecord(data) - return s, errors.New("skipping Type100BaseVGInterfaceCounters") - case SFlowTypeVLANCounters: - if record, err := decodeVLANCounters(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeLACPCounters: - if record, err := decodeLACPCounters(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeProcessorCounters: - if record, err := decodeProcessorCounters(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeOpenflowPortCounters: - if record, err := decodeOpenflowportCounters(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypePORTNAMECounters: - if record, err := decodePortnameCounters(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFLowTypeAPPRESOURCESCounters: - if record, err := decodeAppresourcesCounters(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - case SFlowTypeOVSDPCounters: - if record, err := decodeOVSDPCounters(data); err == nil { - s.Records = append(s.Records, record) - } else { - return s, err - } - default: - return s, fmt.Errorf("Invalid counter record type: %d", counterRecordType) - } - } - return s, nil -} - -// SFlowBaseFlowRecord holds the fields common to all records -// of type SFlowFlowRecordType -type SFlowBaseFlowRecord struct { - EnterpriseID SFlowEnterpriseID - Format SFlowFlowRecordType - FlowDataLength uint32 -} - -func (bfr SFlowBaseFlowRecord) GetType() SFlowFlowRecordType { - return bfr.Format -} - -// SFlowFlowRecordType denotes what kind of Flow Record is -// represented. See RFC 3176 -type SFlowFlowRecordType uint32 - -const ( - SFlowTypeRawPacketFlow SFlowFlowRecordType = 1 - SFlowTypeEthernetFrameFlow SFlowFlowRecordType = 2 - SFlowTypeIpv4Flow SFlowFlowRecordType = 3 - SFlowTypeIpv6Flow SFlowFlowRecordType = 4 - SFlowTypeExtendedSwitchFlow SFlowFlowRecordType = 1001 - SFlowTypeExtendedRouterFlow SFlowFlowRecordType = 1002 - SFlowTypeExtendedGatewayFlow SFlowFlowRecordType = 1003 - SFlowTypeExtendedUserFlow SFlowFlowRecordType = 1004 - SFlowTypeExtendedUrlFlow SFlowFlowRecordType = 1005 - SFlowTypeExtendedMlpsFlow SFlowFlowRecordType = 1006 - SFlowTypeExtendedNatFlow SFlowFlowRecordType = 1007 - SFlowTypeExtendedMlpsTunnelFlow SFlowFlowRecordType = 1008 - SFlowTypeExtendedMlpsVcFlow SFlowFlowRecordType = 1009 - SFlowTypeExtendedMlpsFecFlow SFlowFlowRecordType = 1010 - SFlowTypeExtendedMlpsLvpFecFlow SFlowFlowRecordType = 1011 - SFlowTypeExtendedVlanFlow SFlowFlowRecordType = 1012 - SFlowTypeExtendedIpv4TunnelEgressFlow SFlowFlowRecordType = 1023 - SFlowTypeExtendedIpv4TunnelIngressFlow SFlowFlowRecordType = 1024 - SFlowTypeExtendedIpv6TunnelEgressFlow SFlowFlowRecordType = 1025 - SFlowTypeExtendedIpv6TunnelIngressFlow SFlowFlowRecordType = 1026 - SFlowTypeExtendedDecapsulateEgressFlow SFlowFlowRecordType = 1027 - SFlowTypeExtendedDecapsulateIngressFlow SFlowFlowRecordType = 1028 - SFlowTypeExtendedVniEgressFlow SFlowFlowRecordType = 1029 - SFlowTypeExtendedVniIngressFlow SFlowFlowRecordType = 1030 -) - -func (rt SFlowFlowRecordType) String() string { - switch rt { - case SFlowTypeRawPacketFlow: - return "Raw Packet Flow Record" - case SFlowTypeEthernetFrameFlow: - return "Ethernet Frame Flow Record" - case SFlowTypeIpv4Flow: - return "IPv4 Flow Record" - case SFlowTypeIpv6Flow: - return "IPv6 Flow Record" - case SFlowTypeExtendedSwitchFlow: - return "Extended Switch Flow Record" - case SFlowTypeExtendedRouterFlow: - return "Extended Router Flow Record" - case SFlowTypeExtendedGatewayFlow: - return "Extended Gateway Flow Record" - case SFlowTypeExtendedUserFlow: - return "Extended User Flow Record" - case SFlowTypeExtendedUrlFlow: - return "Extended URL Flow Record" - case SFlowTypeExtendedMlpsFlow: - return "Extended MPLS Flow Record" - case SFlowTypeExtendedNatFlow: - return "Extended NAT Flow Record" - case SFlowTypeExtendedMlpsTunnelFlow: - return "Extended MPLS Tunnel Flow Record" - case SFlowTypeExtendedMlpsVcFlow: - return "Extended MPLS VC Flow Record" - case SFlowTypeExtendedMlpsFecFlow: - return "Extended MPLS FEC Flow Record" - case SFlowTypeExtendedMlpsLvpFecFlow: - return "Extended MPLS LVP FEC Flow Record" - case SFlowTypeExtendedVlanFlow: - return "Extended VLAN Flow Record" - case SFlowTypeExtendedIpv4TunnelEgressFlow: - return "Extended IPv4 Tunnel Egress Record" - case SFlowTypeExtendedIpv4TunnelIngressFlow: - return "Extended IPv4 Tunnel Ingress Record" - case SFlowTypeExtendedIpv6TunnelEgressFlow: - return "Extended IPv6 Tunnel Egress Record" - case SFlowTypeExtendedIpv6TunnelIngressFlow: - return "Extended IPv6 Tunnel Ingress Record" - case SFlowTypeExtendedDecapsulateEgressFlow: - return "Extended Decapsulate Egress Record" - case SFlowTypeExtendedDecapsulateIngressFlow: - return "Extended Decapsulate Ingress Record" - case SFlowTypeExtendedVniEgressFlow: - return "Extended VNI Ingress Record" - case SFlowTypeExtendedVniIngressFlow: - return "Extended VNI Ingress Record" - default: - return "" - } -} - -// SFlowRawPacketFlowRecords hold information about a sampled -// packet grabbed as it transited the agent. This is -// perhaps the most useful and interesting record type, -// as it holds the headers of the sampled packet and -// can be used to build up a complete picture of the -// traffic patterns on a network. -// -// The raw packet header is sent back into gopacket for -// decoding, and the resulting gopackt.Packet is stored -// in the Header member -type SFlowRawPacketFlowRecord struct { - SFlowBaseFlowRecord - HeaderProtocol SFlowRawHeaderProtocol - FrameLength uint32 - PayloadRemoved uint32 - HeaderLength uint32 - Header gopacket.Packet -} - -// Raw packet record types have the following structure: - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | record length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Header Protocol | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Frame Length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Payload Removed | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Header Length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// \ Header \ -// \ \ -// \ \ -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -type SFlowRawHeaderProtocol uint32 - -const ( - SFlowProtoEthernet SFlowRawHeaderProtocol = 1 - SFlowProtoISO88024 SFlowRawHeaderProtocol = 2 - SFlowProtoISO88025 SFlowRawHeaderProtocol = 3 - SFlowProtoFDDI SFlowRawHeaderProtocol = 4 - SFlowProtoFrameRelay SFlowRawHeaderProtocol = 5 - SFlowProtoX25 SFlowRawHeaderProtocol = 6 - SFlowProtoPPP SFlowRawHeaderProtocol = 7 - SFlowProtoSMDS SFlowRawHeaderProtocol = 8 - SFlowProtoAAL5 SFlowRawHeaderProtocol = 9 - SFlowProtoAAL5_IP SFlowRawHeaderProtocol = 10 /* e.g. Cisco AAL5 mux */ - SFlowProtoIPv4 SFlowRawHeaderProtocol = 11 - SFlowProtoIPv6 SFlowRawHeaderProtocol = 12 - SFlowProtoMPLS SFlowRawHeaderProtocol = 13 - SFlowProtoPOS SFlowRawHeaderProtocol = 14 /* RFC 1662, 2615 */ -) - -func (sfhp SFlowRawHeaderProtocol) String() string { - switch sfhp { - case SFlowProtoEthernet: - return "ETHERNET-ISO88023" - case SFlowProtoISO88024: - return "ISO88024-TOKENBUS" - case SFlowProtoISO88025: - return "ISO88025-TOKENRING" - case SFlowProtoFDDI: - return "FDDI" - case SFlowProtoFrameRelay: - return "FRAME-RELAY" - case SFlowProtoX25: - return "X25" - case SFlowProtoPPP: - return "PPP" - case SFlowProtoSMDS: - return "SMDS" - case SFlowProtoAAL5: - return "AAL5" - case SFlowProtoAAL5_IP: - return "AAL5-IP" - case SFlowProtoIPv4: - return "IPv4" - case SFlowProtoIPv6: - return "IPv6" - case SFlowProtoMPLS: - return "MPLS" - case SFlowProtoPOS: - return "POS" - } - return "UNKNOWN" -} - -func decodeRawPacketFlowRecord(data *[]byte) (SFlowRawPacketFlowRecord, error) { - rec := SFlowRawPacketFlowRecord{} - header := []byte{} - var fdf SFlowFlowDataFormat - - *data, fdf = (*data)[4:], SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - rec.EnterpriseID, rec.Format = fdf.decode() - *data, rec.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, rec.HeaderProtocol = (*data)[4:], SFlowRawHeaderProtocol(binary.BigEndian.Uint32((*data)[:4])) - *data, rec.FrameLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, rec.PayloadRemoved = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, rec.HeaderLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - headerLenWithPadding := int(rec.HeaderLength + ((4 - rec.HeaderLength) % 4)) - *data, header = (*data)[headerLenWithPadding:], (*data)[:headerLenWithPadding] - rec.Header = gopacket.NewPacket(header, LayerTypeEthernet, gopacket.Default) - return rec, nil -} - -// SFlowExtendedSwitchFlowRecord give additional information -// about the sampled packet if it's available. It's mainly -// useful for getting at the incoming and outgoing VLANs -// An agent may or may not provide this information. -type SFlowExtendedSwitchFlowRecord struct { - SFlowBaseFlowRecord - IncomingVLAN uint32 - IncomingVLANPriority uint32 - OutgoingVLAN uint32 - OutgoingVLANPriority uint32 -} - -// Extended switch records have the following structure: - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | record length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Incoming VLAN | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Incoming VLAN Priority | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Outgoing VLAN | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Outgoing VLAN Priority | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -func decodeExtendedSwitchFlowRecord(data *[]byte) (SFlowExtendedSwitchFlowRecord, error) { - es := SFlowExtendedSwitchFlowRecord{} - var fdf SFlowFlowDataFormat - - *data, fdf = (*data)[4:], SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - es.EnterpriseID, es.Format = fdf.decode() - *data, es.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, es.IncomingVLAN = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, es.IncomingVLANPriority = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, es.OutgoingVLAN = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, es.OutgoingVLANPriority = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - return es, nil -} - -// SFlowExtendedRouterFlowRecord gives additional information -// about the layer 3 routing information used to forward -// the packet -type SFlowExtendedRouterFlowRecord struct { - SFlowBaseFlowRecord - NextHop net.IP - NextHopSourceMask uint32 - NextHopDestinationMask uint32 -} - -// Extended router records have the following structure: - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | record length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IP version of next hop router (1=v4|2=v6) | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / Next Hop address (v4=4byte|v6=16byte) / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Next Hop Source Mask | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Next Hop Destination Mask | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -func decodeExtendedRouterFlowRecord(data *[]byte) (SFlowExtendedRouterFlowRecord, error) { - er := SFlowExtendedRouterFlowRecord{} - var fdf SFlowFlowDataFormat - var extendedRouterAddressType SFlowIPType - - *data, fdf = (*data)[4:], SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - er.EnterpriseID, er.Format = fdf.decode() - *data, er.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, extendedRouterAddressType = (*data)[4:], SFlowIPType(binary.BigEndian.Uint32((*data)[:4])) - *data, er.NextHop = (*data)[extendedRouterAddressType.Length():], (*data)[:extendedRouterAddressType.Length()] - *data, er.NextHopSourceMask = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, er.NextHopDestinationMask = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - return er, nil -} - -// SFlowExtendedGatewayFlowRecord describes information treasured by -// nework engineers everywhere: AS path information listing which -// BGP peer sent the packet, and various other BGP related info. -// This information is vital because it gives a picture of how much -// traffic is being sent from / received by various BGP peers. - -// Extended gateway records have the following structure: - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | record length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IP version of next hop router (1=v4|2=v6) | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / Next Hop address (v4=4byte|v6=16byte) / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | AS | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Source AS | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Peer AS | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | AS Path Count | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / AS Path / Sequence / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / Communities / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Local Pref | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -// AS Path / Sequence: - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | AS Source Type (Path=1 / Sequence=2) | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Path / Sequence length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / Path / Sequence Members / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -// Communities: - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | communitiy length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / communitiy Members / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -type SFlowExtendedGatewayFlowRecord struct { - SFlowBaseFlowRecord - NextHop net.IP - AS uint32 - SourceAS uint32 - PeerAS uint32 - ASPathCount uint32 - ASPath []SFlowASDestination - Communities []uint32 - LocalPref uint32 -} - -type SFlowASPathType uint32 - -const ( - SFlowASSet SFlowASPathType = 1 - SFlowASSequence SFlowASPathType = 2 -) - -func (apt SFlowASPathType) String() string { - switch apt { - case SFlowASSet: - return "AS Set" - case SFlowASSequence: - return "AS Sequence" - default: - return "" - } -} - -type SFlowASDestination struct { - Type SFlowASPathType - Count uint32 - Members []uint32 -} - -func (asd SFlowASDestination) String() string { - switch asd.Type { - case SFlowASSet: - return fmt.Sprint("AS Set:", asd.Members) - case SFlowASSequence: - return fmt.Sprint("AS Sequence:", asd.Members) - default: - return "" - } -} - -func (ad *SFlowASDestination) decodePath(data *[]byte) { - *data, ad.Type = (*data)[4:], SFlowASPathType(binary.BigEndian.Uint32((*data)[:4])) - *data, ad.Count = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - ad.Members = make([]uint32, ad.Count) - for i := uint32(0); i < ad.Count; i++ { - var member uint32 - *data, member = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - ad.Members[i] = member - } -} - -func decodeExtendedGatewayFlowRecord(data *[]byte) (SFlowExtendedGatewayFlowRecord, error) { - eg := SFlowExtendedGatewayFlowRecord{} - var fdf SFlowFlowDataFormat - var extendedGatewayAddressType SFlowIPType - var communitiesLength uint32 - var community uint32 - - *data, fdf = (*data)[4:], SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - eg.EnterpriseID, eg.Format = fdf.decode() - *data, eg.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, extendedGatewayAddressType = (*data)[4:], SFlowIPType(binary.BigEndian.Uint32((*data)[:4])) - *data, eg.NextHop = (*data)[extendedGatewayAddressType.Length():], (*data)[:extendedGatewayAddressType.Length()] - *data, eg.AS = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, eg.SourceAS = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, eg.PeerAS = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, eg.ASPathCount = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - for i := uint32(0); i < eg.ASPathCount; i++ { - asPath := SFlowASDestination{} - asPath.decodePath(data) - eg.ASPath = append(eg.ASPath, asPath) - } - *data, communitiesLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - eg.Communities = make([]uint32, communitiesLength) - for j := uint32(0); j < communitiesLength; j++ { - *data, community = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - eg.Communities[j] = community - } - *data, eg.LocalPref = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - return eg, nil -} - -// ************************************************** -// Extended URL Flow Record -// ************************************************** - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | record length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | direction | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | URL | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Host | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -type SFlowURLDirection uint32 - -const ( - SFlowURLsrc SFlowURLDirection = 1 - SFlowURLdst SFlowURLDirection = 2 -) - -func (urld SFlowURLDirection) String() string { - switch urld { - case SFlowURLsrc: - return "Source address is the server" - case SFlowURLdst: - return "Destination address is the server" - default: - return "" - } -} - -type SFlowExtendedURLRecord struct { - SFlowBaseFlowRecord - Direction SFlowURLDirection - URL string - Host string -} - -func decodeExtendedURLRecord(data *[]byte) (SFlowExtendedURLRecord, error) { - eur := SFlowExtendedURLRecord{} - var fdf SFlowFlowDataFormat - var urlLen uint32 - var urlLenWithPad int - var hostLen uint32 - var hostLenWithPad int - var urlBytes []byte - var hostBytes []byte - - *data, fdf = (*data)[4:], SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - eur.EnterpriseID, eur.Format = fdf.decode() - *data, eur.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, eur.Direction = (*data)[4:], SFlowURLDirection(binary.BigEndian.Uint32((*data)[:4])) - *data, urlLen = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - urlLenWithPad = int(urlLen + ((4 - urlLen) % 4)) - *data, urlBytes = (*data)[urlLenWithPad:], (*data)[:urlLenWithPad] - eur.URL = string(urlBytes[:urlLen]) - *data, hostLen = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - hostLenWithPad = int(hostLen + ((4 - hostLen) % 4)) - *data, hostBytes = (*data)[hostLenWithPad:], (*data)[:hostLenWithPad] - eur.Host = string(hostBytes[:hostLen]) - return eur, nil -} - -// ************************************************** -// Extended User Flow Record -// ************************************************** - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | record length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Source Character Set | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Source User Id | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Destination Character Set | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Destination User ID | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -type SFlowExtendedUserFlow struct { - SFlowBaseFlowRecord - SourceCharSet SFlowCharSet - SourceUserID string - DestinationCharSet SFlowCharSet - DestinationUserID string -} - -type SFlowCharSet uint32 - -const ( - SFlowCSunknown SFlowCharSet = 2 - SFlowCSASCII SFlowCharSet = 3 - SFlowCSISOLatin1 SFlowCharSet = 4 - SFlowCSISOLatin2 SFlowCharSet = 5 - SFlowCSISOLatin3 SFlowCharSet = 6 - SFlowCSISOLatin4 SFlowCharSet = 7 - SFlowCSISOLatinCyrillic SFlowCharSet = 8 - SFlowCSISOLatinArabic SFlowCharSet = 9 - SFlowCSISOLatinGreek SFlowCharSet = 10 - SFlowCSISOLatinHebrew SFlowCharSet = 11 - SFlowCSISOLatin5 SFlowCharSet = 12 - SFlowCSISOLatin6 SFlowCharSet = 13 - SFlowCSISOTextComm SFlowCharSet = 14 - SFlowCSHalfWidthKatakana SFlowCharSet = 15 - SFlowCSJISEncoding SFlowCharSet = 16 - SFlowCSShiftJIS SFlowCharSet = 17 - SFlowCSEUCPkdFmtJapanese SFlowCharSet = 18 - SFlowCSEUCFixWidJapanese SFlowCharSet = 19 - SFlowCSISO4UnitedKingdom SFlowCharSet = 20 - SFlowCSISO11SwedishForNames SFlowCharSet = 21 - SFlowCSISO15Italian SFlowCharSet = 22 - SFlowCSISO17Spanish SFlowCharSet = 23 - SFlowCSISO21German SFlowCharSet = 24 - SFlowCSISO60DanishNorwegian SFlowCharSet = 25 - SFlowCSISO69French SFlowCharSet = 26 - SFlowCSISO10646UTF1 SFlowCharSet = 27 - SFlowCSISO646basic1983 SFlowCharSet = 28 - SFlowCSINVARIANT SFlowCharSet = 29 - SFlowCSISO2IntlRefVersion SFlowCharSet = 30 - SFlowCSNATSSEFI SFlowCharSet = 31 - SFlowCSNATSSEFIADD SFlowCharSet = 32 - SFlowCSNATSDANO SFlowCharSet = 33 - SFlowCSNATSDANOADD SFlowCharSet = 34 - SFlowCSISO10Swedish SFlowCharSet = 35 - SFlowCSKSC56011987 SFlowCharSet = 36 - SFlowCSISO2022KR SFlowCharSet = 37 - SFlowCSEUCKR SFlowCharSet = 38 - SFlowCSISO2022JP SFlowCharSet = 39 - SFlowCSISO2022JP2 SFlowCharSet = 40 - SFlowCSISO13JISC6220jp SFlowCharSet = 41 - SFlowCSISO14JISC6220ro SFlowCharSet = 42 - SFlowCSISO16Portuguese SFlowCharSet = 43 - SFlowCSISO18Greek7Old SFlowCharSet = 44 - SFlowCSISO19LatinGreek SFlowCharSet = 45 - SFlowCSISO25French SFlowCharSet = 46 - SFlowCSISO27LatinGreek1 SFlowCharSet = 47 - SFlowCSISO5427Cyrillic SFlowCharSet = 48 - SFlowCSISO42JISC62261978 SFlowCharSet = 49 - SFlowCSISO47BSViewdata SFlowCharSet = 50 - SFlowCSISO49INIS SFlowCharSet = 51 - SFlowCSISO50INIS8 SFlowCharSet = 52 - SFlowCSISO51INISCyrillic SFlowCharSet = 53 - SFlowCSISO54271981 SFlowCharSet = 54 - SFlowCSISO5428Greek SFlowCharSet = 55 - SFlowCSISO57GB1988 SFlowCharSet = 56 - SFlowCSISO58GB231280 SFlowCharSet = 57 - SFlowCSISO61Norwegian2 SFlowCharSet = 58 - SFlowCSISO70VideotexSupp1 SFlowCharSet = 59 - SFlowCSISO84Portuguese2 SFlowCharSet = 60 - SFlowCSISO85Spanish2 SFlowCharSet = 61 - SFlowCSISO86Hungarian SFlowCharSet = 62 - SFlowCSISO87JISX0208 SFlowCharSet = 63 - SFlowCSISO88Greek7 SFlowCharSet = 64 - SFlowCSISO89ASMO449 SFlowCharSet = 65 - SFlowCSISO90 SFlowCharSet = 66 - SFlowCSISO91JISC62291984a SFlowCharSet = 67 - SFlowCSISO92JISC62991984b SFlowCharSet = 68 - SFlowCSISO93JIS62291984badd SFlowCharSet = 69 - SFlowCSISO94JIS62291984hand SFlowCharSet = 70 - SFlowCSISO95JIS62291984handadd SFlowCharSet = 71 - SFlowCSISO96JISC62291984kana SFlowCharSet = 72 - SFlowCSISO2033 SFlowCharSet = 73 - SFlowCSISO99NAPLPS SFlowCharSet = 74 - SFlowCSISO102T617bit SFlowCharSet = 75 - SFlowCSISO103T618bit SFlowCharSet = 76 - SFlowCSISO111ECMACyrillic SFlowCharSet = 77 - SFlowCSa71 SFlowCharSet = 78 - SFlowCSa72 SFlowCharSet = 79 - SFlowCSISO123CSAZ24341985gr SFlowCharSet = 80 - SFlowCSISO88596E SFlowCharSet = 81 - SFlowCSISO88596I SFlowCharSet = 82 - SFlowCSISO128T101G2 SFlowCharSet = 83 - SFlowCSISO88598E SFlowCharSet = 84 - SFlowCSISO88598I SFlowCharSet = 85 - SFlowCSISO139CSN369103 SFlowCharSet = 86 - SFlowCSISO141JUSIB1002 SFlowCharSet = 87 - SFlowCSISO143IECP271 SFlowCharSet = 88 - SFlowCSISO146Serbian SFlowCharSet = 89 - SFlowCSISO147Macedonian SFlowCharSet = 90 - SFlowCSISO150 SFlowCharSet = 91 - SFlowCSISO151Cuba SFlowCharSet = 92 - SFlowCSISO6937Add SFlowCharSet = 93 - SFlowCSISO153GOST1976874 SFlowCharSet = 94 - SFlowCSISO8859Supp SFlowCharSet = 95 - SFlowCSISO10367Box SFlowCharSet = 96 - SFlowCSISO158Lap SFlowCharSet = 97 - SFlowCSISO159JISX02121990 SFlowCharSet = 98 - SFlowCSISO646Danish SFlowCharSet = 99 - SFlowCSUSDK SFlowCharSet = 100 - SFlowCSDKUS SFlowCharSet = 101 - SFlowCSKSC5636 SFlowCharSet = 102 - SFlowCSUnicode11UTF7 SFlowCharSet = 103 - SFlowCSISO2022CN SFlowCharSet = 104 - SFlowCSISO2022CNEXT SFlowCharSet = 105 - SFlowCSUTF8 SFlowCharSet = 106 - SFlowCSISO885913 SFlowCharSet = 109 - SFlowCSISO885914 SFlowCharSet = 110 - SFlowCSISO885915 SFlowCharSet = 111 - SFlowCSISO885916 SFlowCharSet = 112 - SFlowCSGBK SFlowCharSet = 113 - SFlowCSGB18030 SFlowCharSet = 114 - SFlowCSOSDEBCDICDF0415 SFlowCharSet = 115 - SFlowCSOSDEBCDICDF03IRV SFlowCharSet = 116 - SFlowCSOSDEBCDICDF041 SFlowCharSet = 117 - SFlowCSISO115481 SFlowCharSet = 118 - SFlowCSKZ1048 SFlowCharSet = 119 - SFlowCSUnicode SFlowCharSet = 1000 - SFlowCSUCS4 SFlowCharSet = 1001 - SFlowCSUnicodeASCII SFlowCharSet = 1002 - SFlowCSUnicodeLatin1 SFlowCharSet = 1003 - SFlowCSUnicodeJapanese SFlowCharSet = 1004 - SFlowCSUnicodeIBM1261 SFlowCharSet = 1005 - SFlowCSUnicodeIBM1268 SFlowCharSet = 1006 - SFlowCSUnicodeIBM1276 SFlowCharSet = 1007 - SFlowCSUnicodeIBM1264 SFlowCharSet = 1008 - SFlowCSUnicodeIBM1265 SFlowCharSet = 1009 - SFlowCSUnicode11 SFlowCharSet = 1010 - SFlowCSSCSU SFlowCharSet = 1011 - SFlowCSUTF7 SFlowCharSet = 1012 - SFlowCSUTF16BE SFlowCharSet = 1013 - SFlowCSUTF16LE SFlowCharSet = 1014 - SFlowCSUTF16 SFlowCharSet = 1015 - SFlowCSCESU8 SFlowCharSet = 1016 - SFlowCSUTF32 SFlowCharSet = 1017 - SFlowCSUTF32BE SFlowCharSet = 1018 - SFlowCSUTF32LE SFlowCharSet = 1019 - SFlowCSBOCU1 SFlowCharSet = 1020 - SFlowCSWindows30Latin1 SFlowCharSet = 2000 - SFlowCSWindows31Latin1 SFlowCharSet = 2001 - SFlowCSWindows31Latin2 SFlowCharSet = 2002 - SFlowCSWindows31Latin5 SFlowCharSet = 2003 - SFlowCSHPRoman8 SFlowCharSet = 2004 - SFlowCSAdobeStandardEncoding SFlowCharSet = 2005 - SFlowCSVenturaUS SFlowCharSet = 2006 - SFlowCSVenturaInternational SFlowCharSet = 2007 - SFlowCSDECMCS SFlowCharSet = 2008 - SFlowCSPC850Multilingual SFlowCharSet = 2009 - SFlowCSPCp852 SFlowCharSet = 2010 - SFlowCSPC8CodePage437 SFlowCharSet = 2011 - SFlowCSPC8DanishNorwegian SFlowCharSet = 2012 - SFlowCSPC862LatinHebrew SFlowCharSet = 2013 - SFlowCSPC8Turkish SFlowCharSet = 2014 - SFlowCSIBMSymbols SFlowCharSet = 2015 - SFlowCSIBMThai SFlowCharSet = 2016 - SFlowCSHPLegal SFlowCharSet = 2017 - SFlowCSHPPiFont SFlowCharSet = 2018 - SFlowCSHPMath8 SFlowCharSet = 2019 - SFlowCSHPPSMath SFlowCharSet = 2020 - SFlowCSHPDesktop SFlowCharSet = 2021 - SFlowCSVenturaMath SFlowCharSet = 2022 - SFlowCSMicrosoftPublishing SFlowCharSet = 2023 - SFlowCSWindows31J SFlowCharSet = 2024 - SFlowCSGB2312 SFlowCharSet = 2025 - SFlowCSBig5 SFlowCharSet = 2026 - SFlowCSMacintosh SFlowCharSet = 2027 - SFlowCSIBM037 SFlowCharSet = 2028 - SFlowCSIBM038 SFlowCharSet = 2029 - SFlowCSIBM273 SFlowCharSet = 2030 - SFlowCSIBM274 SFlowCharSet = 2031 - SFlowCSIBM275 SFlowCharSet = 2032 - SFlowCSIBM277 SFlowCharSet = 2033 - SFlowCSIBM278 SFlowCharSet = 2034 - SFlowCSIBM280 SFlowCharSet = 2035 - SFlowCSIBM281 SFlowCharSet = 2036 - SFlowCSIBM284 SFlowCharSet = 2037 - SFlowCSIBM285 SFlowCharSet = 2038 - SFlowCSIBM290 SFlowCharSet = 2039 - SFlowCSIBM297 SFlowCharSet = 2040 - SFlowCSIBM420 SFlowCharSet = 2041 - SFlowCSIBM423 SFlowCharSet = 2042 - SFlowCSIBM424 SFlowCharSet = 2043 - SFlowCSIBM500 SFlowCharSet = 2044 - SFlowCSIBM851 SFlowCharSet = 2045 - SFlowCSIBM855 SFlowCharSet = 2046 - SFlowCSIBM857 SFlowCharSet = 2047 - SFlowCSIBM860 SFlowCharSet = 2048 - SFlowCSIBM861 SFlowCharSet = 2049 - SFlowCSIBM863 SFlowCharSet = 2050 - SFlowCSIBM864 SFlowCharSet = 2051 - SFlowCSIBM865 SFlowCharSet = 2052 - SFlowCSIBM868 SFlowCharSet = 2053 - SFlowCSIBM869 SFlowCharSet = 2054 - SFlowCSIBM870 SFlowCharSet = 2055 - SFlowCSIBM871 SFlowCharSet = 2056 - SFlowCSIBM880 SFlowCharSet = 2057 - SFlowCSIBM891 SFlowCharSet = 2058 - SFlowCSIBM903 SFlowCharSet = 2059 - SFlowCSIBBM904 SFlowCharSet = 2060 - SFlowCSIBM905 SFlowCharSet = 2061 - SFlowCSIBM918 SFlowCharSet = 2062 - SFlowCSIBM1026 SFlowCharSet = 2063 - SFlowCSIBMEBCDICATDE SFlowCharSet = 2064 - SFlowCSEBCDICATDEA SFlowCharSet = 2065 - SFlowCSEBCDICCAFR SFlowCharSet = 2066 - SFlowCSEBCDICDKNO SFlowCharSet = 2067 - SFlowCSEBCDICDKNOA SFlowCharSet = 2068 - SFlowCSEBCDICFISE SFlowCharSet = 2069 - SFlowCSEBCDICFISEA SFlowCharSet = 2070 - SFlowCSEBCDICFR SFlowCharSet = 2071 - SFlowCSEBCDICIT SFlowCharSet = 2072 - SFlowCSEBCDICPT SFlowCharSet = 2073 - SFlowCSEBCDICES SFlowCharSet = 2074 - SFlowCSEBCDICESA SFlowCharSet = 2075 - SFlowCSEBCDICESS SFlowCharSet = 2076 - SFlowCSEBCDICUK SFlowCharSet = 2077 - SFlowCSEBCDICUS SFlowCharSet = 2078 - SFlowCSUnknown8BiT SFlowCharSet = 2079 - SFlowCSMnemonic SFlowCharSet = 2080 - SFlowCSMnem SFlowCharSet = 2081 - SFlowCSVISCII SFlowCharSet = 2082 - SFlowCSVIQR SFlowCharSet = 2083 - SFlowCSKOI8R SFlowCharSet = 2084 - SFlowCSHZGB2312 SFlowCharSet = 2085 - SFlowCSIBM866 SFlowCharSet = 2086 - SFlowCSPC775Baltic SFlowCharSet = 2087 - SFlowCSKOI8U SFlowCharSet = 2088 - SFlowCSIBM00858 SFlowCharSet = 2089 - SFlowCSIBM00924 SFlowCharSet = 2090 - SFlowCSIBM01140 SFlowCharSet = 2091 - SFlowCSIBM01141 SFlowCharSet = 2092 - SFlowCSIBM01142 SFlowCharSet = 2093 - SFlowCSIBM01143 SFlowCharSet = 2094 - SFlowCSIBM01144 SFlowCharSet = 2095 - SFlowCSIBM01145 SFlowCharSet = 2096 - SFlowCSIBM01146 SFlowCharSet = 2097 - SFlowCSIBM01147 SFlowCharSet = 2098 - SFlowCSIBM01148 SFlowCharSet = 2099 - SFlowCSIBM01149 SFlowCharSet = 2100 - SFlowCSBig5HKSCS SFlowCharSet = 2101 - SFlowCSIBM1047 SFlowCharSet = 2102 - SFlowCSPTCP154 SFlowCharSet = 2103 - SFlowCSAmiga1251 SFlowCharSet = 2104 - SFlowCSKOI7switched SFlowCharSet = 2105 - SFlowCSBRF SFlowCharSet = 2106 - SFlowCSTSCII SFlowCharSet = 2107 - SFlowCSCP51932 SFlowCharSet = 2108 - SFlowCSWindows874 SFlowCharSet = 2109 - SFlowCSWindows1250 SFlowCharSet = 2250 - SFlowCSWindows1251 SFlowCharSet = 2251 - SFlowCSWindows1252 SFlowCharSet = 2252 - SFlowCSWindows1253 SFlowCharSet = 2253 - SFlowCSWindows1254 SFlowCharSet = 2254 - SFlowCSWindows1255 SFlowCharSet = 2255 - SFlowCSWindows1256 SFlowCharSet = 2256 - SFlowCSWindows1257 SFlowCharSet = 2257 - SFlowCSWindows1258 SFlowCharSet = 2258 - SFlowCSTIS620 SFlowCharSet = 2259 - SFlowCS50220 SFlowCharSet = 2260 - SFlowCSreserved SFlowCharSet = 3000 -) - -func decodeExtendedUserFlow(data *[]byte) (SFlowExtendedUserFlow, error) { - eu := SFlowExtendedUserFlow{} - var fdf SFlowFlowDataFormat - var srcUserLen uint32 - var srcUserLenWithPad int - var srcUserBytes []byte - var dstUserLen uint32 - var dstUserLenWithPad int - var dstUserBytes []byte - - *data, fdf = (*data)[4:], SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - eu.EnterpriseID, eu.Format = fdf.decode() - *data, eu.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, eu.SourceCharSet = (*data)[4:], SFlowCharSet(binary.BigEndian.Uint32((*data)[:4])) - *data, srcUserLen = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - srcUserLenWithPad = int(srcUserLen + ((4 - srcUserLen) % 4)) - *data, srcUserBytes = (*data)[srcUserLenWithPad:], (*data)[:srcUserLenWithPad] - eu.SourceUserID = string(srcUserBytes[:srcUserLen]) - *data, eu.DestinationCharSet = (*data)[4:], SFlowCharSet(binary.BigEndian.Uint32((*data)[:4])) - *data, dstUserLen = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - dstUserLenWithPad = int(dstUserLen + ((4 - dstUserLen) % 4)) - *data, dstUserBytes = (*data)[dstUserLenWithPad:], (*data)[:dstUserLenWithPad] - eu.DestinationUserID = string(dstUserBytes[:dstUserLen]) - return eu, nil -} - -// ************************************************** -// Packet IP version 4 Record -// ************************************************** - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Protocol | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Source IPv4 | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Destination IPv4 | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Source Port | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Destionation Port | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | TCP Flags | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | TOS | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -type SFlowIpv4Record struct { - // The length of the IP packet excluding ower layer encapsulations - Length uint32 - // IP Protocol type (for example, TCP = 6, UDP = 17) - Protocol uint32 - // Source IP Address - IPSrc net.IP - // Destination IP Address - IPDst net.IP - // TCP/UDP source port number or equivalent - PortSrc uint32 - // TCP/UDP destination port number or equivalent - PortDst uint32 - // TCP flags - TCPFlags uint32 - // IP type of service - TOS uint32 -} - -func decodeSFlowIpv4Record(data *[]byte) (SFlowIpv4Record, error) { - si := SFlowIpv4Record{} - - *data, si.Length = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, si.Protocol = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, si.IPSrc = (*data)[4:], net.IP((*data)[:4]) - *data, si.IPDst = (*data)[4:], net.IP((*data)[:4]) - *data, si.PortSrc = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, si.PortDst = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, si.TCPFlags = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, si.TOS = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - - return si, nil -} - -// ************************************************** -// Packet IP version 6 Record -// ************************************************** - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Protocol | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Source IPv4 | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Destination IPv4 | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Source Port | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Destionation Port | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | TCP Flags | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Priority | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -type SFlowIpv6Record struct { - // The length of the IP packet excluding ower layer encapsulations - Length uint32 - // IP Protocol type (for example, TCP = 6, UDP = 17) - Protocol uint32 - // Source IP Address - IPSrc net.IP - // Destination IP Address - IPDst net.IP - // TCP/UDP source port number or equivalent - PortSrc uint32 - // TCP/UDP destination port number or equivalent - PortDst uint32 - // TCP flags - TCPFlags uint32 - // IP priority - Priority uint32 -} - -func decodeSFlowIpv6Record(data *[]byte) (SFlowIpv6Record, error) { - si := SFlowIpv6Record{} - - *data, si.Length = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, si.Protocol = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, si.IPSrc = (*data)[16:], net.IP((*data)[:16]) - *data, si.IPDst = (*data)[16:], net.IP((*data)[:16]) - *data, si.PortSrc = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, si.PortDst = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, si.TCPFlags = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, si.Priority = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - - return si, nil -} - -// ************************************************** -// Extended IPv4 Tunnel Egress -// ************************************************** - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | record length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / Packet IP version 4 Record / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -type SFlowExtendedIpv4TunnelEgressRecord struct { - SFlowBaseFlowRecord - SFlowIpv4Record SFlowIpv4Record -} - -func decodeExtendedIpv4TunnelEgress(data *[]byte) (SFlowExtendedIpv4TunnelEgressRecord, error) { - rec := SFlowExtendedIpv4TunnelEgressRecord{} - var fdf SFlowFlowDataFormat - - *data, fdf = (*data)[4:], SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - rec.EnterpriseID, rec.Format = fdf.decode() - *data, rec.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - rec.SFlowIpv4Record, _ = decodeSFlowIpv4Record(data) - - return rec, nil -} - -// ************************************************** -// Extended IPv4 Tunnel Ingress -// ************************************************** - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | record length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / Packet IP version 4 Record / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -type SFlowExtendedIpv4TunnelIngressRecord struct { - SFlowBaseFlowRecord - SFlowIpv4Record SFlowIpv4Record -} - -func decodeExtendedIpv4TunnelIngress(data *[]byte) (SFlowExtendedIpv4TunnelIngressRecord, error) { - rec := SFlowExtendedIpv4TunnelIngressRecord{} - var fdf SFlowFlowDataFormat - - *data, fdf = (*data)[4:], SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - rec.EnterpriseID, rec.Format = fdf.decode() - *data, rec.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - rec.SFlowIpv4Record, _ = decodeSFlowIpv4Record(data) - - return rec, nil -} - -// ************************************************** -// Extended IPv6 Tunnel Egress -// ************************************************** - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | record length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / Packet IP version 6 Record / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -type SFlowExtendedIpv6TunnelEgressRecord struct { - SFlowBaseFlowRecord - SFlowIpv6Record -} - -func decodeExtendedIpv6TunnelEgress(data *[]byte) (SFlowExtendedIpv6TunnelEgressRecord, error) { - rec := SFlowExtendedIpv6TunnelEgressRecord{} - var fdf SFlowFlowDataFormat - - *data, fdf = (*data)[4:], SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - rec.EnterpriseID, rec.Format = fdf.decode() - *data, rec.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - rec.SFlowIpv6Record, _ = decodeSFlowIpv6Record(data) - - return rec, nil -} - -// ************************************************** -// Extended IPv6 Tunnel Ingress -// ************************************************** - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | record length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / Packet IP version 6 Record / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -type SFlowExtendedIpv6TunnelIngressRecord struct { - SFlowBaseFlowRecord - SFlowIpv6Record -} - -func decodeExtendedIpv6TunnelIngress(data *[]byte) (SFlowExtendedIpv6TunnelIngressRecord, error) { - rec := SFlowExtendedIpv6TunnelIngressRecord{} - var fdf SFlowFlowDataFormat - - *data, fdf = (*data)[4:], SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - rec.EnterpriseID, rec.Format = fdf.decode() - *data, rec.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - rec.SFlowIpv6Record, _ = decodeSFlowIpv6Record(data) - - return rec, nil -} - -// ************************************************** -// Extended Decapsulate Egress -// ************************************************** - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | record length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Inner Header Offset | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -type SFlowExtendedDecapsulateEgressRecord struct { - SFlowBaseFlowRecord - InnerHeaderOffset uint32 -} - -func decodeExtendedDecapsulateEgress(data *[]byte) (SFlowExtendedDecapsulateEgressRecord, error) { - rec := SFlowExtendedDecapsulateEgressRecord{} - var fdf SFlowFlowDataFormat - - *data, fdf = (*data)[4:], SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - rec.EnterpriseID, rec.Format = fdf.decode() - *data, rec.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, rec.InnerHeaderOffset = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - - return rec, nil -} - -// ************************************************** -// Extended Decapsulate Ingress -// ************************************************** - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | record length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Inner Header Offset | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -type SFlowExtendedDecapsulateIngressRecord struct { - SFlowBaseFlowRecord - InnerHeaderOffset uint32 -} - -func decodeExtendedDecapsulateIngress(data *[]byte) (SFlowExtendedDecapsulateIngressRecord, error) { - rec := SFlowExtendedDecapsulateIngressRecord{} - var fdf SFlowFlowDataFormat - - *data, fdf = (*data)[4:], SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - rec.EnterpriseID, rec.Format = fdf.decode() - *data, rec.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, rec.InnerHeaderOffset = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - - return rec, nil -} - -// ************************************************** -// Extended VNI Egress -// ************************************************** - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | record length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | VNI | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -type SFlowExtendedVniEgressRecord struct { - SFlowBaseFlowRecord - VNI uint32 -} - -func decodeExtendedVniEgress(data *[]byte) (SFlowExtendedVniEgressRecord, error) { - rec := SFlowExtendedVniEgressRecord{} - var fdf SFlowFlowDataFormat - - *data, fdf = (*data)[4:], SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - rec.EnterpriseID, rec.Format = fdf.decode() - *data, rec.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, rec.VNI = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - - return rec, nil -} - -// ************************************************** -// Extended VNI Ingress -// ************************************************** - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | record length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | VNI | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -type SFlowExtendedVniIngressRecord struct { - SFlowBaseFlowRecord - VNI uint32 -} - -func decodeExtendedVniIngress(data *[]byte) (SFlowExtendedVniIngressRecord, error) { - rec := SFlowExtendedVniIngressRecord{} - var fdf SFlowFlowDataFormat - - *data, fdf = (*data)[4:], SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - rec.EnterpriseID, rec.Format = fdf.decode() - *data, rec.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, rec.VNI = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - - return rec, nil -} - -// ************************************************** -// Counter Record -// ************************************************** - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | counter length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / counter data / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -type SFlowBaseCounterRecord struct { - EnterpriseID SFlowEnterpriseID - Format SFlowCounterRecordType - FlowDataLength uint32 -} - -func (bcr SFlowBaseCounterRecord) GetType() SFlowCounterRecordType { - switch bcr.Format { - case SFlowTypeGenericInterfaceCounters: - return SFlowTypeGenericInterfaceCounters - case SFlowTypeEthernetInterfaceCounters: - return SFlowTypeEthernetInterfaceCounters - case SFlowTypeTokenRingInterfaceCounters: - return SFlowTypeTokenRingInterfaceCounters - case SFlowType100BaseVGInterfaceCounters: - return SFlowType100BaseVGInterfaceCounters - case SFlowTypeVLANCounters: - return SFlowTypeVLANCounters - case SFlowTypeLACPCounters: - return SFlowTypeLACPCounters - case SFlowTypeProcessorCounters: - return SFlowTypeProcessorCounters - case SFlowTypeOpenflowPortCounters: - return SFlowTypeOpenflowPortCounters - case SFlowTypePORTNAMECounters: - return SFlowTypePORTNAMECounters - case SFLowTypeAPPRESOURCESCounters: - return SFLowTypeAPPRESOURCESCounters - case SFlowTypeOVSDPCounters: - return SFlowTypeOVSDPCounters - } - unrecognized := fmt.Sprint("Unrecognized counter record type:", bcr.Format) - panic(unrecognized) -} - -// ************************************************** -// Counter Record -// ************************************************** - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | counter length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfIndex | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfType | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfSpeed | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfDirection | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfStatus | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IFInOctets | -// | | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfInUcastPkts | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfInMulticastPkts | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfInBroadcastPkts | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfInDiscards | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | InInErrors | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfInUnknownProtos | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfOutOctets | -// | | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfOutUcastPkts | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfOutMulticastPkts | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfOutBroadcastPkts | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfOutDiscards | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfOUtErrors | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | IfPromiscouousMode | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -type SFlowGenericInterfaceCounters struct { - SFlowBaseCounterRecord - IfIndex uint32 - IfType uint32 - IfSpeed uint64 - IfDirection uint32 - IfStatus uint32 - IfInOctets uint64 - IfInUcastPkts uint32 - IfInMulticastPkts uint32 - IfInBroadcastPkts uint32 - IfInDiscards uint32 - IfInErrors uint32 - IfInUnknownProtos uint32 - IfOutOctets uint64 - IfOutUcastPkts uint32 - IfOutMulticastPkts uint32 - IfOutBroadcastPkts uint32 - IfOutDiscards uint32 - IfOutErrors uint32 - IfPromiscuousMode uint32 -} - -func decodeGenericInterfaceCounters(data *[]byte) (SFlowGenericInterfaceCounters, error) { - gic := SFlowGenericInterfaceCounters{} - var cdf SFlowCounterDataFormat - - *data, cdf = (*data)[4:], SFlowCounterDataFormat(binary.BigEndian.Uint32((*data)[:4])) - gic.EnterpriseID, gic.Format = cdf.decode() - *data, gic.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfIndex = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfType = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfSpeed = (*data)[8:], binary.BigEndian.Uint64((*data)[:8]) - *data, gic.IfDirection = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfStatus = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfInOctets = (*data)[8:], binary.BigEndian.Uint64((*data)[:8]) - *data, gic.IfInUcastPkts = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfInMulticastPkts = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfInBroadcastPkts = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfInDiscards = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfInErrors = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfInUnknownProtos = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfOutOctets = (*data)[8:], binary.BigEndian.Uint64((*data)[:8]) - *data, gic.IfOutUcastPkts = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfOutMulticastPkts = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfOutBroadcastPkts = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfOutDiscards = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfOutErrors = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, gic.IfPromiscuousMode = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - return gic, nil -} - -// ************************************************** -// Counter Record -// ************************************************** - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | counter length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// / counter data / -// / / -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -type SFlowEthernetCounters struct { - SFlowBaseCounterRecord - AlignmentErrors uint32 - FCSErrors uint32 - SingleCollisionFrames uint32 - MultipleCollisionFrames uint32 - SQETestErrors uint32 - DeferredTransmissions uint32 - LateCollisions uint32 - ExcessiveCollisions uint32 - InternalMacTransmitErrors uint32 - CarrierSenseErrors uint32 - FrameTooLongs uint32 - InternalMacReceiveErrors uint32 - SymbolErrors uint32 -} - -func decodeEthernetCounters(data *[]byte) (SFlowEthernetCounters, error) { - ec := SFlowEthernetCounters{} - var cdf SFlowCounterDataFormat - - *data, cdf = (*data)[4:], SFlowCounterDataFormat(binary.BigEndian.Uint32((*data)[:4])) - ec.EnterpriseID, ec.Format = cdf.decode() - if len(*data) < 4 { - return SFlowEthernetCounters{}, errors.New("ethernet counters too small") - } - *data, ec.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowEthernetCounters{}, errors.New("ethernet counters too small") - } - *data, ec.AlignmentErrors = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowEthernetCounters{}, errors.New("ethernet counters too small") - } - *data, ec.FCSErrors = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowEthernetCounters{}, errors.New("ethernet counters too small") - } - *data, ec.SingleCollisionFrames = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowEthernetCounters{}, errors.New("ethernet counters too small") - } - *data, ec.MultipleCollisionFrames = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowEthernetCounters{}, errors.New("ethernet counters too small") - } - *data, ec.SQETestErrors = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowEthernetCounters{}, errors.New("ethernet counters too small") - } - *data, ec.DeferredTransmissions = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowEthernetCounters{}, errors.New("ethernet counters too small") - } - *data, ec.LateCollisions = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowEthernetCounters{}, errors.New("ethernet counters too small") - } - *data, ec.ExcessiveCollisions = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowEthernetCounters{}, errors.New("ethernet counters too small") - } - *data, ec.InternalMacTransmitErrors = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowEthernetCounters{}, errors.New("ethernet counters too small") - } - *data, ec.CarrierSenseErrors = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowEthernetCounters{}, errors.New("ethernet counters too small") - } - *data, ec.FrameTooLongs = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowEthernetCounters{}, errors.New("ethernet counters too small") - } - *data, ec.InternalMacReceiveErrors = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - if len(*data) < 4 { - return SFlowEthernetCounters{}, errors.New("ethernet counters too small") - } - *data, ec.SymbolErrors = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - return ec, nil -} - -// VLAN Counter - -type SFlowVLANCounters struct { - SFlowBaseCounterRecord - VlanID uint32 - Octets uint64 - UcastPkts uint32 - MulticastPkts uint32 - BroadcastPkts uint32 - Discards uint32 -} - -func decodeVLANCounters(data *[]byte) (SFlowVLANCounters, error) { - vc := SFlowVLANCounters{} - var cdf SFlowCounterDataFormat - - *data, cdf = (*data)[4:], SFlowCounterDataFormat(binary.BigEndian.Uint32((*data)[:4])) - vc.EnterpriseID, vc.Format = cdf.decode() - vc.EnterpriseID, vc.Format = cdf.decode() - *data, vc.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, vc.VlanID = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, vc.Octets = (*data)[8:], binary.BigEndian.Uint64((*data)[:8]) - *data, vc.UcastPkts = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, vc.MulticastPkts = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, vc.BroadcastPkts = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, vc.Discards = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - return vc, nil -} - -//SFLLACPportState : SFlow LACP Port State (All(4) - 32 bit) -type SFLLACPPortState struct { - PortStateAll uint32 -} - -//LACPcounters : LACP SFlow Counters ( 64 Bytes ) -type SFlowLACPCounters struct { - SFlowBaseCounterRecord - ActorSystemID net.HardwareAddr - PartnerSystemID net.HardwareAddr - AttachedAggID uint32 - LacpPortState SFLLACPPortState - LACPDUsRx uint32 - MarkerPDUsRx uint32 - MarkerResponsePDUsRx uint32 - UnknownRx uint32 - IllegalRx uint32 - LACPDUsTx uint32 - MarkerPDUsTx uint32 - MarkerResponsePDUsTx uint32 -} - -func decodeLACPCounters(data *[]byte) (SFlowLACPCounters, error) { - la := SFlowLACPCounters{} - var cdf SFlowCounterDataFormat - - *data, cdf = (*data)[4:], SFlowCounterDataFormat(binary.BigEndian.Uint32((*data)[:4])) - la.EnterpriseID, la.Format = cdf.decode() - *data, la.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, la.ActorSystemID = (*data)[6:], (*data)[:6] - *data = (*data)[2:] // remove padding - *data, la.PartnerSystemID = (*data)[6:], (*data)[:6] - *data = (*data)[2:] //remove padding - *data, la.AttachedAggID = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, la.LacpPortState.PortStateAll = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, la.LACPDUsRx = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, la.MarkerPDUsRx = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, la.MarkerResponsePDUsRx = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, la.UnknownRx = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, la.IllegalRx = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, la.LACPDUsTx = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, la.MarkerPDUsTx = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, la.MarkerResponsePDUsTx = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - - return la, nil - -} - -// ************************************************** -// Processor Counter Record -// ************************************************** -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | counter length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | FiveSecCpu | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | OneMinCpu | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | GiveMinCpu | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | TotalMemory | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | FreeMemory | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -type SFlowProcessorCounters struct { - SFlowBaseCounterRecord - FiveSecCpu uint32 // 5 second average CPU utilization - OneMinCpu uint32 // 1 minute average CPU utilization - FiveMinCpu uint32 // 5 minute average CPU utilization - TotalMemory uint64 // total memory (in bytes) - FreeMemory uint64 // free memory (in bytes) -} - -func decodeProcessorCounters(data *[]byte) (SFlowProcessorCounters, error) { - pc := SFlowProcessorCounters{} - var cdf SFlowCounterDataFormat - var high32, low32 uint32 - - *data, cdf = (*data)[4:], SFlowCounterDataFormat(binary.BigEndian.Uint32((*data)[:4])) - pc.EnterpriseID, pc.Format = cdf.decode() - *data, pc.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - - *data, pc.FiveSecCpu = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, pc.OneMinCpu = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, pc.FiveMinCpu = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, high32 = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, low32 = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - pc.TotalMemory = (uint64(high32) << 32) + uint64(low32) - *data, high32 = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, low32 = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - pc.FreeMemory = (uint64(high32)) + uint64(low32) - - return pc, nil -} - -// SFlowEthernetFrameFlowRecord give additional information -// about the sampled packet if it's available. -// An agent may or may not provide this information. -type SFlowEthernetFrameFlowRecord struct { - SFlowBaseFlowRecord - FrameLength uint32 - SrcMac net.HardwareAddr - DstMac net.HardwareAddr - Type uint32 -} - -// Ethernet frame flow records have the following structure: - -// 0 15 31 -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | 20 bit Interprise (0) |12 bit format | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | record length | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Source Mac Address | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Destination Mac Address | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ -// | Ethernet Packet Type | -// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ - -func decodeEthernetFrameFlowRecord(data *[]byte) (SFlowEthernetFrameFlowRecord, error) { - es := SFlowEthernetFrameFlowRecord{} - var fdf SFlowFlowDataFormat - - *data, fdf = (*data)[4:], SFlowFlowDataFormat(binary.BigEndian.Uint32((*data)[:4])) - es.EnterpriseID, es.Format = fdf.decode() - *data, es.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - - *data, es.FrameLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, es.SrcMac = (*data)[8:], net.HardwareAddr((*data)[:6]) - *data, es.DstMac = (*data)[8:], net.HardwareAddr((*data)[:6]) - *data, es.Type = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - return es, nil -} - -//SFlowOpenflowPortCounters : OVS-Sflow OpenFlow Port Counter ( 20 Bytes ) -type SFlowOpenflowPortCounters struct { - SFlowBaseCounterRecord - DatapathID uint64 - PortNo uint32 -} - -func decodeOpenflowportCounters(data *[]byte) (SFlowOpenflowPortCounters, error) { - ofp := SFlowOpenflowPortCounters{} - var cdf SFlowCounterDataFormat - - *data, cdf = (*data)[4:], SFlowCounterDataFormat(binary.BigEndian.Uint32((*data)[:4])) - ofp.EnterpriseID, ofp.Format = cdf.decode() - *data, ofp.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, ofp.DatapathID = (*data)[8:], binary.BigEndian.Uint64((*data)[:8]) - *data, ofp.PortNo = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - - return ofp, nil -} - -//SFlowAppresourcesCounters : OVS_Sflow App Resources Counter ( 48 Bytes ) -type SFlowAppresourcesCounters struct { - SFlowBaseCounterRecord - UserTime uint32 - SystemTime uint32 - MemUsed uint64 - MemMax uint64 - FdOpen uint32 - FdMax uint32 - ConnOpen uint32 - ConnMax uint32 -} - -func decodeAppresourcesCounters(data *[]byte) (SFlowAppresourcesCounters, error) { - app := SFlowAppresourcesCounters{} - var cdf SFlowCounterDataFormat - - *data, cdf = (*data)[4:], SFlowCounterDataFormat(binary.BigEndian.Uint32((*data)[:4])) - app.EnterpriseID, app.Format = cdf.decode() - *data, app.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, app.UserTime = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, app.SystemTime = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, app.MemUsed = (*data)[8:], binary.BigEndian.Uint64((*data)[:8]) - *data, app.MemMax = (*data)[8:], binary.BigEndian.Uint64((*data)[:8]) - *data, app.FdOpen = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, app.FdMax = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, app.ConnOpen = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, app.ConnMax = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - - return app, nil -} - -//SFlowOVSDPCounters : OVS-Sflow DataPath Counter ( 32 Bytes ) -type SFlowOVSDPCounters struct { - SFlowBaseCounterRecord - NHit uint32 - NMissed uint32 - NLost uint32 - NMaskHit uint32 - NFlows uint32 - NMasks uint32 -} - -func decodeOVSDPCounters(data *[]byte) (SFlowOVSDPCounters, error) { - dp := SFlowOVSDPCounters{} - var cdf SFlowCounterDataFormat - - *data, cdf = (*data)[4:], SFlowCounterDataFormat(binary.BigEndian.Uint32((*data)[:4])) - dp.EnterpriseID, dp.Format = cdf.decode() - *data, dp.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, dp.NHit = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, dp.NMissed = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, dp.NLost = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, dp.NMaskHit = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, dp.NFlows = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - *data, dp.NMasks = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - - return dp, nil -} - -//SFlowPORTNAME : OVS-Sflow PORTNAME Counter Sampletype ( 20 Bytes ) -type SFlowPORTNAME struct { - SFlowBaseCounterRecord - Len uint32 - Str string -} - -func decodeString(data *[]byte) (len uint32, str string) { - *data, len = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - str = string((*data)[:len]) - if (len % 4) != 0 { - len += 4 - len%4 - } - *data = (*data)[len:] - return -} - -func decodePortnameCounters(data *[]byte) (SFlowPORTNAME, error) { - pn := SFlowPORTNAME{} - var cdf SFlowCounterDataFormat - - *data, cdf = (*data)[4:], SFlowCounterDataFormat(binary.BigEndian.Uint32((*data)[:4])) - pn.EnterpriseID, pn.Format = cdf.decode() - *data, pn.FlowDataLength = (*data)[4:], binary.BigEndian.Uint32((*data)[:4]) - pn.Len, pn.Str = decodeString(data) - - return pn, nil -} diff --git a/vendor/github.com/google/gopacket/layers/sip.go b/vendor/github.com/google/gopacket/layers/sip.go deleted file mode 100644 index 70afdb5c06..0000000000 --- a/vendor/github.com/google/gopacket/layers/sip.go +++ /dev/null @@ -1,542 +0,0 @@ -// Copyright 2017 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "bytes" - "fmt" - "io" - "strconv" - "strings" - - "github.com/google/gopacket" -) - -// SIPVersion defines the different versions of the SIP Protocol -type SIPVersion uint8 - -// Represents all the versions of SIP protocol -const ( - SIPVersion1 SIPVersion = 1 - SIPVersion2 SIPVersion = 2 -) - -func (sv SIPVersion) String() string { - switch sv { - default: - // Defaulting to SIP/2.0 - return "SIP/2.0" - case SIPVersion1: - return "SIP/1.0" - case SIPVersion2: - return "SIP/2.0" - } -} - -// GetSIPVersion is used to get SIP version constant -func GetSIPVersion(version string) (SIPVersion, error) { - switch strings.ToUpper(version) { - case "SIP/1.0": - return SIPVersion1, nil - case "SIP/2.0": - return SIPVersion2, nil - default: - return 0, fmt.Errorf("Unknown SIP version: '%s'", version) - - } -} - -// SIPMethod defines the different methods of the SIP Protocol -// defined in the different RFC's -type SIPMethod uint16 - -// Here are all the SIP methods -const ( - SIPMethodInvite SIPMethod = 1 // INVITE [RFC3261] - SIPMethodAck SIPMethod = 2 // ACK [RFC3261] - SIPMethodBye SIPMethod = 3 // BYE [RFC3261] - SIPMethodCancel SIPMethod = 4 // CANCEL [RFC3261] - SIPMethodOptions SIPMethod = 5 // OPTIONS [RFC3261] - SIPMethodRegister SIPMethod = 6 // REGISTER [RFC3261] - SIPMethodPrack SIPMethod = 7 // PRACK [RFC3262] - SIPMethodSubscribe SIPMethod = 8 // SUBSCRIBE [RFC6665] - SIPMethodNotify SIPMethod = 9 // NOTIFY [RFC6665] - SIPMethodPublish SIPMethod = 10 // PUBLISH [RFC3903] - SIPMethodInfo SIPMethod = 11 // INFO [RFC6086] - SIPMethodRefer SIPMethod = 12 // REFER [RFC3515] - SIPMethodMessage SIPMethod = 13 // MESSAGE [RFC3428] - SIPMethodUpdate SIPMethod = 14 // UPDATE [RFC3311] - SIPMethodPing SIPMethod = 15 // PING [https://tools.ietf.org/html/draft-fwmiller-ping-03] -) - -func (sm SIPMethod) String() string { - switch sm { - default: - return "Unknown method" - case SIPMethodInvite: - return "INVITE" - case SIPMethodAck: - return "ACK" - case SIPMethodBye: - return "BYE" - case SIPMethodCancel: - return "CANCEL" - case SIPMethodOptions: - return "OPTIONS" - case SIPMethodRegister: - return "REGISTER" - case SIPMethodPrack: - return "PRACK" - case SIPMethodSubscribe: - return "SUBSCRIBE" - case SIPMethodNotify: - return "NOTIFY" - case SIPMethodPublish: - return "PUBLISH" - case SIPMethodInfo: - return "INFO" - case SIPMethodRefer: - return "REFER" - case SIPMethodMessage: - return "MESSAGE" - case SIPMethodUpdate: - return "UPDATE" - case SIPMethodPing: - return "PING" - } -} - -// GetSIPMethod returns the constant of a SIP method -// from its string -func GetSIPMethod(method string) (SIPMethod, error) { - switch strings.ToUpper(method) { - case "INVITE": - return SIPMethodInvite, nil - case "ACK": - return SIPMethodAck, nil - case "BYE": - return SIPMethodBye, nil - case "CANCEL": - return SIPMethodCancel, nil - case "OPTIONS": - return SIPMethodOptions, nil - case "REGISTER": - return SIPMethodRegister, nil - case "PRACK": - return SIPMethodPrack, nil - case "SUBSCRIBE": - return SIPMethodSubscribe, nil - case "NOTIFY": - return SIPMethodNotify, nil - case "PUBLISH": - return SIPMethodPublish, nil - case "INFO": - return SIPMethodInfo, nil - case "REFER": - return SIPMethodRefer, nil - case "MESSAGE": - return SIPMethodMessage, nil - case "UPDATE": - return SIPMethodUpdate, nil - case "PING": - return SIPMethodPing, nil - default: - return 0, fmt.Errorf("Unknown SIP method: '%s'", method) - } -} - -// Here is a correspondance between long header names and short -// as defined in rfc3261 in section 20 -var compactSipHeadersCorrespondance = map[string]string{ - "accept-contact": "a", - "allow-events": "u", - "call-id": "i", - "contact": "m", - "content-encoding": "e", - "content-length": "l", - "content-type": "c", - "event": "o", - "from": "f", - "identity": "y", - "refer-to": "r", - "referred-by": "b", - "reject-contact": "j", - "request-disposition": "d", - "session-expires": "x", - "subject": "s", - "supported": "k", - "to": "t", - "via": "v", -} - -// SIP object will contains information about decoded SIP packet. -// -> The SIP Version -// -> The SIP Headers (in a map[string][]string because of multiple headers with the same name -// -> The SIP Method -// -> The SIP Response code (if it's a response) -// -> The SIP Status line (if it's a response) -// You can easily know the type of the packet with the IsResponse boolean -// -type SIP struct { - BaseLayer - - // Base information - Version SIPVersion - Method SIPMethod - Headers map[string][]string - - // Request - RequestURI string - - // Response - IsResponse bool - ResponseCode int - ResponseStatus string - - // Private fields - cseq int64 - contentLength int64 - lastHeaderParsed string -} - -// decodeSIP decodes the byte slice into a SIP type. It also -// setups the application Layer in PacketBuilder. -func decodeSIP(data []byte, p gopacket.PacketBuilder) error { - s := NewSIP() - err := s.DecodeFromBytes(data, p) - if err != nil { - return err - } - p.AddLayer(s) - p.SetApplicationLayer(s) - return nil -} - -// NewSIP instantiates a new empty SIP object -func NewSIP() *SIP { - s := new(SIP) - s.Headers = make(map[string][]string) - return s -} - -// LayerType returns gopacket.LayerTypeSIP. -func (s *SIP) LayerType() gopacket.LayerType { - return LayerTypeSIP -} - -// Payload returns the base layer payload -func (s *SIP) Payload() []byte { - return s.BaseLayer.Payload -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode -func (s *SIP) CanDecode() gopacket.LayerClass { - return LayerTypeSIP -} - -// NextLayerType returns the layer type contained by this DecodingLayer -func (s *SIP) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -// DecodeFromBytes decodes the slice into the SIP struct. -func (s *SIP) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - // Init some vars for parsing follow-up - var countLines int - var line []byte - var err error - var offset int - - // Iterate on all lines of the SIP Headers - // and stop when we reach the SDP (aka when the new line - // is at index 0 of the remaining packet) - buffer := bytes.NewBuffer(data) - - for { - - // Read next line - line, err = buffer.ReadBytes(byte('\n')) - if err != nil { - if err == io.EOF { - if len(bytes.Trim(line, "\r\n")) > 0 { - df.SetTruncated() - } - break - } else { - return err - } - } - offset += len(line) - - // Trim the new line delimiters - line = bytes.Trim(line, "\r\n") - - // Empty line, we hit Body - if len(line) == 0 { - break - } - - // First line is the SIP request/response line - // Other lines are headers - if countLines == 0 { - err = s.ParseFirstLine(line) - if err != nil { - return err - } - - } else { - err = s.ParseHeader(line) - if err != nil { - return err - } - } - - countLines++ - } - s.BaseLayer = BaseLayer{Contents: data[:offset], Payload: data[offset:]} - - return nil -} - -// ParseFirstLine will compute the first line of a SIP packet. -// The first line will tell us if it's a request or a response. -// -// Examples of first line of SIP Prococol : -// -// Request : INVITE bob@example.com SIP/2.0 -// Response : SIP/2.0 200 OK -// Response : SIP/2.0 501 Not Implemented -// -func (s *SIP) ParseFirstLine(firstLine []byte) error { - - var err error - - // Splits line by space - splits := strings.SplitN(string(firstLine), " ", 3) - - // We must have at least 3 parts - if len(splits) < 3 { - return fmt.Errorf("invalid first SIP line: '%s'", string(firstLine)) - } - - // Determine the SIP packet type - if strings.HasPrefix(splits[0], "SIP") { - - // --> Response - s.IsResponse = true - - // Validate SIP Version - s.Version, err = GetSIPVersion(splits[0]) - if err != nil { - return err - } - - // Compute code - s.ResponseCode, err = strconv.Atoi(splits[1]) - if err != nil { - return err - } - - // Compute status line - s.ResponseStatus = splits[2] - - } else { - - // --> Request - - // Validate method - s.Method, err = GetSIPMethod(splits[0]) - if err != nil { - return err - } - - s.RequestURI = splits[1] - - // Validate SIP Version - s.Version, err = GetSIPVersion(splits[2]) - if err != nil { - return err - } - } - - return nil -} - -// ParseHeader will parse a SIP Header -// SIP Headers are quite simple, there are colon separated name and value -// Headers can be spread over multiple lines -// -// Examples of header : -// -// CSeq: 1 REGISTER -// Via: SIP/2.0/UDP there.com:5060 -// Authorization:Digest username="UserB", -// realm="MCI WorldCom SIP", -// nonce="1cec4341ae6cbe5a359ea9c8e88df84f", opaque="", -// uri="sip:ss2.wcom.com", response="71ba27c64bd01de719686aa4590d5824" -// -func (s *SIP) ParseHeader(header []byte) (err error) { - - // Ignore empty headers - if len(header) == 0 { - return - } - - // Check if this is the following of last header - // RFC 3261 - 7.3.1 - Header Field Format specify that following lines of - // multiline headers must begin by SP or TAB - if header[0] == '\t' || header[0] == ' ' { - - header = bytes.TrimSpace(header) - s.Headers[s.lastHeaderParsed][len(s.Headers[s.lastHeaderParsed])-1] += fmt.Sprintf(" %s", string(header)) - return - } - - // Find the ':' to separate header name and value - index := bytes.Index(header, []byte(":")) - if index >= 0 { - - headerName := strings.ToLower(string(bytes.Trim(header[:index], " "))) - headerValue := string(bytes.Trim(header[index+1:], " ")) - - // Add header to object - s.Headers[headerName] = append(s.Headers[headerName], headerValue) - s.lastHeaderParsed = headerName - - // Compute specific headers - err = s.ParseSpecificHeaders(headerName, headerValue) - if err != nil { - return err - } - } - - return nil -} - -// ParseSpecificHeaders will parse some specific key values from -// specific headers like CSeq or Content-Length integer values -func (s *SIP) ParseSpecificHeaders(headerName string, headerValue string) (err error) { - - switch headerName { - case "cseq": - - // CSeq header value is formatted like that : - // CSeq: 123 INVITE - // We split the value to parse Cseq integer value, and method - splits := strings.Split(headerValue, " ") - if len(splits) > 1 { - - // Parse Cseq - s.cseq, err = strconv.ParseInt(splits[0], 10, 64) - if err != nil { - return err - } - - // Validate method - if s.IsResponse { - s.Method, err = GetSIPMethod(splits[1]) - if err != nil { - return err - } - } - } - - case "content-length": - - // Parse Content-Length - s.contentLength, err = strconv.ParseInt(headerValue, 10, 64) - if err != nil { - return err - } - } - - return nil -} - -// GetAllHeaders will return the full headers of the -// current SIP packets in a map[string][]string -func (s *SIP) GetAllHeaders() map[string][]string { - return s.Headers -} - -// GetHeader will return all the headers with -// the specified name. -func (s *SIP) GetHeader(headerName string) []string { - headerName = strings.ToLower(headerName) - h := make([]string, 0) - if _, ok := s.Headers[headerName]; ok { - return s.Headers[headerName] - } - compactHeader := compactSipHeadersCorrespondance[headerName] - if _, ok := s.Headers[compactHeader]; ok { - return s.Headers[compactHeader] - } - return h -} - -// GetFirstHeader will return the first header with -// the specified name. If the current SIP packet has multiple -// headers with the same name, it returns the first. -func (s *SIP) GetFirstHeader(headerName string) string { - headers := s.GetHeader(headerName) - if len(headers) > 0 { - return headers[0] - } - return "" -} - -// -// Some handy getters for most used SIP headers -// - -// GetAuthorization will return the Authorization -// header of the current SIP packet -func (s *SIP) GetAuthorization() string { - return s.GetFirstHeader("Authorization") -} - -// GetFrom will return the From -// header of the current SIP packet -func (s *SIP) GetFrom() string { - return s.GetFirstHeader("From") -} - -// GetTo will return the To -// header of the current SIP packet -func (s *SIP) GetTo() string { - return s.GetFirstHeader("To") -} - -// GetContact will return the Contact -// header of the current SIP packet -func (s *SIP) GetContact() string { - return s.GetFirstHeader("Contact") -} - -// GetCallID will return the Call-ID -// header of the current SIP packet -func (s *SIP) GetCallID() string { - return s.GetFirstHeader("Call-ID") -} - -// GetUserAgent will return the User-Agent -// header of the current SIP packet -func (s *SIP) GetUserAgent() string { - return s.GetFirstHeader("User-Agent") -} - -// GetContentLength will return the parsed integer -// Content-Length header of the current SIP packet -func (s *SIP) GetContentLength() int64 { - return s.contentLength -} - -// GetCSeq will return the parsed integer CSeq header -// header of the current SIP packet -func (s *SIP) GetCSeq() int64 { - return s.cseq -} diff --git a/vendor/github.com/google/gopacket/layers/stp.go b/vendor/github.com/google/gopacket/layers/stp.go deleted file mode 100644 index bde7d7c8ef..0000000000 --- a/vendor/github.com/google/gopacket/layers/stp.go +++ /dev/null @@ -1,27 +0,0 @@ -// Copyright 2017 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "github.com/google/gopacket" -) - -// STP decode spanning tree protocol packets to transport BPDU (bridge protocol data unit) message. -type STP struct { - BaseLayer -} - -// LayerType returns gopacket.LayerTypeSTP. -func (s *STP) LayerType() gopacket.LayerType { return LayerTypeSTP } - -func decodeSTP(data []byte, p gopacket.PacketBuilder) error { - stp := &STP{} - stp.Contents = data[:] - // TODO: parse the STP protocol into actual subfields. - p.AddLayer(stp) - return nil -} diff --git a/vendor/github.com/google/gopacket/layers/tcp.go b/vendor/github.com/google/gopacket/layers/tcp.go deleted file mode 100644 index bcdeb4b3c3..0000000000 --- a/vendor/github.com/google/gopacket/layers/tcp.go +++ /dev/null @@ -1,341 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// Copyright 2009-2011 Andreas Krennmair. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "encoding/hex" - "errors" - "fmt" - - "github.com/google/gopacket" -) - -// TCP is the layer for TCP headers. -type TCP struct { - BaseLayer - SrcPort, DstPort TCPPort - Seq uint32 - Ack uint32 - DataOffset uint8 - FIN, SYN, RST, PSH, ACK, URG, ECE, CWR, NS bool - Window uint16 - Checksum uint16 - Urgent uint16 - sPort, dPort []byte - Options []TCPOption - Padding []byte - opts [4]TCPOption - tcpipchecksum -} - -// TCPOptionKind represents a TCP option code. -type TCPOptionKind uint8 - -const ( - TCPOptionKindEndList = 0 - TCPOptionKindNop = 1 - TCPOptionKindMSS = 2 // len = 4 - TCPOptionKindWindowScale = 3 // len = 3 - TCPOptionKindSACKPermitted = 4 // len = 2 - TCPOptionKindSACK = 5 // len = n - TCPOptionKindEcho = 6 // len = 6, obsolete - TCPOptionKindEchoReply = 7 // len = 6, obsolete - TCPOptionKindTimestamps = 8 // len = 10 - TCPOptionKindPartialOrderConnectionPermitted = 9 // len = 2, obsolete - TCPOptionKindPartialOrderServiceProfile = 10 // len = 3, obsolete - TCPOptionKindCC = 11 // obsolete - TCPOptionKindCCNew = 12 // obsolete - TCPOptionKindCCEcho = 13 // obsolete - TCPOptionKindAltChecksum = 14 // len = 3, obsolete - TCPOptionKindAltChecksumData = 15 // len = n, obsolete -) - -func (k TCPOptionKind) String() string { - switch k { - case TCPOptionKindEndList: - return "EndList" - case TCPOptionKindNop: - return "NOP" - case TCPOptionKindMSS: - return "MSS" - case TCPOptionKindWindowScale: - return "WindowScale" - case TCPOptionKindSACKPermitted: - return "SACKPermitted" - case TCPOptionKindSACK: - return "SACK" - case TCPOptionKindEcho: - return "Echo" - case TCPOptionKindEchoReply: - return "EchoReply" - case TCPOptionKindTimestamps: - return "Timestamps" - case TCPOptionKindPartialOrderConnectionPermitted: - return "PartialOrderConnectionPermitted" - case TCPOptionKindPartialOrderServiceProfile: - return "PartialOrderServiceProfile" - case TCPOptionKindCC: - return "CC" - case TCPOptionKindCCNew: - return "CCNew" - case TCPOptionKindCCEcho: - return "CCEcho" - case TCPOptionKindAltChecksum: - return "AltChecksum" - case TCPOptionKindAltChecksumData: - return "AltChecksumData" - default: - return fmt.Sprintf("Unknown(%d)", k) - } -} - -type TCPOption struct { - OptionType TCPOptionKind - OptionLength uint8 - OptionData []byte -} - -func (t TCPOption) String() string { - hd := hex.EncodeToString(t.OptionData) - if len(hd) > 0 { - hd = " 0x" + hd - } - switch t.OptionType { - case TCPOptionKindMSS: - if len(t.OptionData) >= 2 { - return fmt.Sprintf("TCPOption(%s:%v%s)", - t.OptionType, - binary.BigEndian.Uint16(t.OptionData), - hd) - } - - case TCPOptionKindTimestamps: - if len(t.OptionData) == 8 { - return fmt.Sprintf("TCPOption(%s:%v/%v%s)", - t.OptionType, - binary.BigEndian.Uint32(t.OptionData[:4]), - binary.BigEndian.Uint32(t.OptionData[4:8]), - hd) - } - } - return fmt.Sprintf("TCPOption(%s:%s)", t.OptionType, hd) -} - -// LayerType returns gopacket.LayerTypeTCP -func (t *TCP) LayerType() gopacket.LayerType { return LayerTypeTCP } - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (t *TCP) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - var optionLength int - for _, o := range t.Options { - switch o.OptionType { - case 0, 1: - optionLength += 1 - default: - optionLength += 2 + len(o.OptionData) - } - } - if opts.FixLengths { - if rem := optionLength % 4; rem != 0 { - t.Padding = lotsOfZeros[:4-rem] - } - t.DataOffset = uint8((len(t.Padding) + optionLength + 20) / 4) - } - bytes, err := b.PrependBytes(20 + optionLength + len(t.Padding)) - if err != nil { - return err - } - binary.BigEndian.PutUint16(bytes, uint16(t.SrcPort)) - binary.BigEndian.PutUint16(bytes[2:], uint16(t.DstPort)) - binary.BigEndian.PutUint32(bytes[4:], t.Seq) - binary.BigEndian.PutUint32(bytes[8:], t.Ack) - binary.BigEndian.PutUint16(bytes[12:], t.flagsAndOffset()) - binary.BigEndian.PutUint16(bytes[14:], t.Window) - binary.BigEndian.PutUint16(bytes[18:], t.Urgent) - start := 20 - for _, o := range t.Options { - bytes[start] = byte(o.OptionType) - switch o.OptionType { - case 0, 1: - start++ - default: - if opts.FixLengths { - o.OptionLength = uint8(len(o.OptionData) + 2) - } - bytes[start+1] = o.OptionLength - copy(bytes[start+2:start+len(o.OptionData)+2], o.OptionData) - start += len(o.OptionData) + 2 - } - } - copy(bytes[start:], t.Padding) - if opts.ComputeChecksums { - // zero out checksum bytes in current serialization. - bytes[16] = 0 - bytes[17] = 0 - csum, err := t.computeChecksum(b.Bytes(), IPProtocolTCP) - if err != nil { - return err - } - t.Checksum = csum - } - binary.BigEndian.PutUint16(bytes[16:], t.Checksum) - return nil -} - -func (t *TCP) ComputeChecksum() (uint16, error) { - return t.computeChecksum(append(t.Contents, t.Payload...), IPProtocolTCP) -} - -func (t *TCP) flagsAndOffset() uint16 { - f := uint16(t.DataOffset) << 12 - if t.FIN { - f |= 0x0001 - } - if t.SYN { - f |= 0x0002 - } - if t.RST { - f |= 0x0004 - } - if t.PSH { - f |= 0x0008 - } - if t.ACK { - f |= 0x0010 - } - if t.URG { - f |= 0x0020 - } - if t.ECE { - f |= 0x0040 - } - if t.CWR { - f |= 0x0080 - } - if t.NS { - f |= 0x0100 - } - return f -} - -func (tcp *TCP) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 20 { - df.SetTruncated() - return fmt.Errorf("Invalid TCP header. Length %d less than 20", len(data)) - } - tcp.SrcPort = TCPPort(binary.BigEndian.Uint16(data[0:2])) - tcp.sPort = data[0:2] - tcp.DstPort = TCPPort(binary.BigEndian.Uint16(data[2:4])) - tcp.dPort = data[2:4] - tcp.Seq = binary.BigEndian.Uint32(data[4:8]) - tcp.Ack = binary.BigEndian.Uint32(data[8:12]) - tcp.DataOffset = data[12] >> 4 - tcp.FIN = data[13]&0x01 != 0 - tcp.SYN = data[13]&0x02 != 0 - tcp.RST = data[13]&0x04 != 0 - tcp.PSH = data[13]&0x08 != 0 - tcp.ACK = data[13]&0x10 != 0 - tcp.URG = data[13]&0x20 != 0 - tcp.ECE = data[13]&0x40 != 0 - tcp.CWR = data[13]&0x80 != 0 - tcp.NS = data[12]&0x01 != 0 - tcp.Window = binary.BigEndian.Uint16(data[14:16]) - tcp.Checksum = binary.BigEndian.Uint16(data[16:18]) - tcp.Urgent = binary.BigEndian.Uint16(data[18:20]) - if tcp.Options == nil { - // Pre-allocate to avoid allocating a slice. - tcp.Options = tcp.opts[:0] - } else { - tcp.Options = tcp.Options[:0] - } - tcp.Padding = tcp.Padding[:0] - if tcp.DataOffset < 5 { - return fmt.Errorf("Invalid TCP data offset %d < 5", tcp.DataOffset) - } - dataStart := int(tcp.DataOffset) * 4 - if dataStart > len(data) { - df.SetTruncated() - tcp.Payload = nil - tcp.Contents = data - return errors.New("TCP data offset greater than packet length") - } - tcp.Contents = data[:dataStart] - tcp.Payload = data[dataStart:] - // From here on, data points just to the header options. - data = data[20:dataStart] -OPTIONS: - for len(data) > 0 { - tcp.Options = append(tcp.Options, TCPOption{OptionType: TCPOptionKind(data[0])}) - opt := &tcp.Options[len(tcp.Options)-1] - switch opt.OptionType { - case TCPOptionKindEndList: // End of options - opt.OptionLength = 1 - tcp.Padding = data[1:] - break OPTIONS - case TCPOptionKindNop: // 1 byte padding - opt.OptionLength = 1 - default: - if len(data) < 2 { - df.SetTruncated() - return fmt.Errorf("Invalid TCP option length. Length %d less than 2", len(data)) - } - opt.OptionLength = data[1] - if opt.OptionLength < 2 { - return fmt.Errorf("Invalid TCP option length %d < 2", opt.OptionLength) - } else if int(opt.OptionLength) > len(data) { - df.SetTruncated() - return fmt.Errorf("Invalid TCP option length %d exceeds remaining %d bytes", opt.OptionLength, len(data)) - } - opt.OptionData = data[2:opt.OptionLength] - } - data = data[opt.OptionLength:] - } - return nil -} - -func (t *TCP) CanDecode() gopacket.LayerClass { - return LayerTypeTCP -} - -func (t *TCP) NextLayerType() gopacket.LayerType { - lt := t.DstPort.LayerType() - if lt == gopacket.LayerTypePayload { - lt = t.SrcPort.LayerType() - } - return lt -} - -func decodeTCP(data []byte, p gopacket.PacketBuilder) error { - tcp := &TCP{} - err := tcp.DecodeFromBytes(data, p) - p.AddLayer(tcp) - p.SetTransportLayer(tcp) - if err != nil { - return err - } - if p.DecodeOptions().DecodeStreamsAsDatagrams { - return p.NextDecoder(tcp.NextLayerType()) - } else { - return p.NextDecoder(gopacket.LayerTypePayload) - } -} - -func (t *TCP) TransportFlow() gopacket.Flow { - return gopacket.NewFlow(EndpointTCPPort, t.sPort, t.dPort) -} - -// For testing only -func (t *TCP) SetInternalPortsForTesting() { - t.sPort = make([]byte, 2) - t.dPort = make([]byte, 2) - binary.BigEndian.PutUint16(t.sPort, uint16(t.SrcPort)) - binary.BigEndian.PutUint16(t.dPort, uint16(t.DstPort)) -} diff --git a/vendor/github.com/google/gopacket/layers/tcpip.go b/vendor/github.com/google/gopacket/layers/tcpip.go deleted file mode 100644 index 64ba51cc75..0000000000 --- a/vendor/github.com/google/gopacket/layers/tcpip.go +++ /dev/null @@ -1,104 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// Copyright 2009-2011 Andreas Krennmair. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "errors" - "fmt" - - "github.com/google/gopacket" -) - -// Checksum computation for TCP/UDP. -type tcpipchecksum struct { - pseudoheader tcpipPseudoHeader -} - -type tcpipPseudoHeader interface { - pseudoheaderChecksum() (uint32, error) -} - -func (ip *IPv4) pseudoheaderChecksum() (csum uint32, err error) { - if err := ip.AddressTo4(); err != nil { - return 0, err - } - csum += (uint32(ip.SrcIP[0]) + uint32(ip.SrcIP[2])) << 8 - csum += uint32(ip.SrcIP[1]) + uint32(ip.SrcIP[3]) - csum += (uint32(ip.DstIP[0]) + uint32(ip.DstIP[2])) << 8 - csum += uint32(ip.DstIP[1]) + uint32(ip.DstIP[3]) - return csum, nil -} - -func (ip *IPv6) pseudoheaderChecksum() (csum uint32, err error) { - if err := ip.AddressTo16(); err != nil { - return 0, err - } - for i := 0; i < 16; i += 2 { - csum += uint32(ip.SrcIP[i]) << 8 - csum += uint32(ip.SrcIP[i+1]) - csum += uint32(ip.DstIP[i]) << 8 - csum += uint32(ip.DstIP[i+1]) - } - return csum, nil -} - -// Calculate the TCP/IP checksum defined in rfc1071. The passed-in csum is any -// initial checksum data that's already been computed. -func tcpipChecksum(data []byte, csum uint32) uint16 { - // to handle odd lengths, we loop to length - 1, incrementing by 2, then - // handle the last byte specifically by checking against the original - // length. - length := len(data) - 1 - for i := 0; i < length; i += 2 { - // For our test packet, doing this manually is about 25% faster - // (740 ns vs. 1000ns) than doing it by calling binary.BigEndian.Uint16. - csum += uint32(data[i]) << 8 - csum += uint32(data[i+1]) - } - if len(data)%2 == 1 { - csum += uint32(data[length]) << 8 - } - for csum > 0xffff { - csum = (csum >> 16) + (csum & 0xffff) - } - return ^uint16(csum) -} - -// computeChecksum computes a TCP or UDP checksum. headerAndPayload is the -// serialized TCP or UDP header plus its payload, with the checksum zero'd -// out. headerProtocol is the IP protocol number of the upper-layer header. -func (c *tcpipchecksum) computeChecksum(headerAndPayload []byte, headerProtocol IPProtocol) (uint16, error) { - if c.pseudoheader == nil { - return 0, errors.New("TCP/IP layer 4 checksum cannot be computed without network layer... call SetNetworkLayerForChecksum to set which layer to use") - } - length := uint32(len(headerAndPayload)) - csum, err := c.pseudoheader.pseudoheaderChecksum() - if err != nil { - return 0, err - } - csum += uint32(headerProtocol) - csum += length & 0xffff - csum += length >> 16 - return tcpipChecksum(headerAndPayload, csum), nil -} - -// SetNetworkLayerForChecksum tells this layer which network layer is wrapping it. -// This is needed for computing the checksum when serializing, since TCP/IP transport -// layer checksums depends on fields in the IPv4 or IPv6 layer that contains it. -// The passed in layer must be an *IPv4 or *IPv6. -func (i *tcpipchecksum) SetNetworkLayerForChecksum(l gopacket.NetworkLayer) error { - switch v := l.(type) { - case *IPv4: - i.pseudoheader = v - case *IPv6: - i.pseudoheader = v - default: - return fmt.Errorf("cannot use layer type %v for tcp checksum network layer", l.LayerType()) - } - return nil -} diff --git a/vendor/github.com/google/gopacket/layers/test_creator.py b/vendor/github.com/google/gopacket/layers/test_creator.py deleted file mode 100644 index c92d2765a2..0000000000 --- a/vendor/github.com/google/gopacket/layers/test_creator.py +++ /dev/null @@ -1,103 +0,0 @@ -#!/usr/bin/python -# Copyright 2012 Google, Inc. All rights reserved. - -"""TestCreator creates test templates from pcap files.""" - -import argparse -import base64 -import glob -import re -import string -import subprocess -import sys - - -class Packet(object): - """Helper class encapsulating packet from a pcap file.""" - - def __init__(self, packet_lines): - self.packet_lines = packet_lines - self.data = self._DecodeText(packet_lines) - - @classmethod - def _DecodeText(cls, packet_lines): - packet_bytes = [] - # First line is timestamp and stuff, skip it. - # Format: 0x0010: 0000 0020 3aff 3ffe 0000 0000 0000 0000 ....:.?......... - - for line in packet_lines[1:]: - m = re.match(r'\s+0x[a-f\d]+:\s+((?:[\da-f]{2,4}\s)*)', line, re.IGNORECASE) - if m is None: continue - for hexpart in m.group(1).split(): - packet_bytes.append(base64.b16decode(hexpart.upper())) - return ''.join(packet_bytes) - - def Test(self, name, link_type): - """Yields a test using this packet, as a set of lines.""" - yield '// testPacket%s is the packet:' % name - for line in self.packet_lines: - yield '// ' + line - yield 'var testPacket%s = []byte{' % name - data = list(self.data) - while data: - linebytes, data = data[:16], data[16:] - yield ''.join(['\t'] + ['0x%02x, ' % ord(c) for c in linebytes]) - yield '}' - yield 'func TestPacket%s(t *testing.T) {' % name - yield '\tp := gopacket.NewPacket(testPacket%s, LinkType%s, gopacket.Default)' % (name, link_type) - yield '\tif p.ErrorLayer() != nil {' - yield '\t\tt.Error("Failed to decode packet:", p.ErrorLayer().Error())' - yield '\t}' - yield '\tcheckLayers(p, []gopacket.LayerType{LayerType%s, FILL_ME_IN_WITH_ACTUAL_LAYERS}, t)' % link_type - yield '}' - yield 'func BenchmarkDecodePacket%s(b *testing.B) {' % name - yield '\tfor i := 0; i < b.N; i++ {' - yield '\t\tgopacket.NewPacket(testPacket%s, LinkType%s, gopacket.NoCopy)' % (name, link_type) - yield '\t}' - yield '}' - - - -def GetTcpdumpOutput(filename): - """Runs tcpdump on the given file, returning output as string.""" - return subprocess.check_output( - ['tcpdump', '-XX', '-s', '0', '-n', '-r', filename]) - - -def TcpdumpOutputToPackets(output): - """Reads a pcap file with TCPDump, yielding Packet objects.""" - pdata = [] - for line in output.splitlines(): - if line[0] not in string.whitespace and pdata: - yield Packet(pdata) - pdata = [] - pdata.append(line) - if pdata: - yield Packet(pdata) - - -def main(): - class CustomHelpFormatter(argparse.ArgumentDefaultsHelpFormatter): - def _format_usage(self, usage, actions, groups, prefix=None): - header =('TestCreator creates gopacket tests using a pcap file.\n\n' - 'Tests are written to standard out... they can then be \n' - 'copied into the file of your choice and modified as \n' - 'you see.\n\n') - return header + argparse.ArgumentDefaultsHelpFormatter._format_usage( - self, usage, actions, groups, prefix) - - parser = argparse.ArgumentParser(formatter_class=CustomHelpFormatter) - parser.add_argument('--link_type', default='Ethernet', help='the link type (default: %(default)s)') - parser.add_argument('--name', default='Packet%d', help='the layer type, must have "%d" inside it') - parser.add_argument('files', metavar='file.pcap', type=str, nargs='+', help='the files to process') - - args = parser.parse_args() - - for arg in args.files: - for path in glob.glob(arg): - for i, packet in enumerate(TcpdumpOutputToPackets(GetTcpdumpOutput(path))): - print '\n'.join(packet.Test( - args.name % i, args.link_type)) - -if __name__ == '__main__': - main() diff --git a/vendor/github.com/google/gopacket/layers/tls.go b/vendor/github.com/google/gopacket/layers/tls.go deleted file mode 100644 index 5a155d455a..0000000000 --- a/vendor/github.com/google/gopacket/layers/tls.go +++ /dev/null @@ -1,283 +0,0 @@ -// Copyright 2018 The GoPacket Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - - "github.com/google/gopacket" -) - -// TLSType defines the type of data after the TLS Record -type TLSType uint8 - -// TLSType known values. -const ( - TLSChangeCipherSpec TLSType = 20 - TLSAlert TLSType = 21 - TLSHandshake TLSType = 22 - TLSApplicationData TLSType = 23 - TLSUnknown TLSType = 255 -) - -// String shows the register type nicely formatted -func (tt TLSType) String() string { - switch tt { - default: - return "Unknown" - case TLSChangeCipherSpec: - return "Change Cipher Spec" - case TLSAlert: - return "Alert" - case TLSHandshake: - return "Handshake" - case TLSApplicationData: - return "Application Data" - } -} - -// TLSVersion represents the TLS version in numeric format -type TLSVersion uint16 - -// Strings shows the TLS version nicely formatted -func (tv TLSVersion) String() string { - switch tv { - default: - return "Unknown" - case 0x0200: - return "SSL 2.0" - case 0x0300: - return "SSL 3.0" - case 0x0301: - return "TLS 1.0" - case 0x0302: - return "TLS 1.1" - case 0x0303: - return "TLS 1.2" - case 0x0304: - return "TLS 1.3" - } -} - -// TLS is specified in RFC 5246 -// -// TLS Record Protocol -// 0 1 2 3 4 5 6 7 8 -// +--+--+--+--+--+--+--+--+ -// | Content Type | -// +--+--+--+--+--+--+--+--+ -// | Version (major) | -// +--+--+--+--+--+--+--+--+ -// | Version (minor) | -// +--+--+--+--+--+--+--+--+ -// | Length | -// +--+--+--+--+--+--+--+--+ -// | Length | -// +--+--+--+--+--+--+--+--+ - -// TLS is actually a slide of TLSrecord structures -type TLS struct { - BaseLayer - - // TLS Records - ChangeCipherSpec []TLSChangeCipherSpecRecord - Handshake []TLSHandshakeRecord - AppData []TLSAppDataRecord - Alert []TLSAlertRecord -} - -// TLSRecordHeader contains all the information that each TLS Record types should have -type TLSRecordHeader struct { - ContentType TLSType - Version TLSVersion - Length uint16 -} - -// LayerType returns gopacket.LayerTypeTLS. -func (t *TLS) LayerType() gopacket.LayerType { return LayerTypeTLS } - -// decodeTLS decodes the byte slice into a TLS type. It also -// setups the application Layer in PacketBuilder. -func decodeTLS(data []byte, p gopacket.PacketBuilder) error { - t := &TLS{} - err := t.DecodeFromBytes(data, p) - if err != nil { - return err - } - p.AddLayer(t) - p.SetApplicationLayer(t) - return nil -} - -// DecodeFromBytes decodes the slice into the TLS struct. -func (t *TLS) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - t.BaseLayer.Contents = data - t.BaseLayer.Payload = nil - - t.ChangeCipherSpec = t.ChangeCipherSpec[:0] - t.Handshake = t.Handshake[:0] - t.AppData = t.AppData[:0] - t.Alert = t.Alert[:0] - - return t.decodeTLSRecords(data, df) -} - -func (t *TLS) decodeTLSRecords(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 5 { - df.SetTruncated() - return errors.New("TLS record too short") - } - - // since there are no further layers, the baselayer's content is - // pointing to this layer - // TODO: Consider removing this - t.BaseLayer = BaseLayer{Contents: data[:len(data)]} - - var h TLSRecordHeader - h.ContentType = TLSType(data[0]) - h.Version = TLSVersion(binary.BigEndian.Uint16(data[1:3])) - h.Length = binary.BigEndian.Uint16(data[3:5]) - - if h.ContentType.String() == "Unknown" { - return errors.New("Unknown TLS record type") - } - - hl := 5 // header length - tl := hl + int(h.Length) - if len(data) < tl { - df.SetTruncated() - return errors.New("TLS packet length mismatch") - } - - switch h.ContentType { - default: - return errors.New("Unknown TLS record type") - case TLSChangeCipherSpec: - var r TLSChangeCipherSpecRecord - e := r.decodeFromBytes(h, data[hl:tl], df) - if e != nil { - return e - } - t.ChangeCipherSpec = append(t.ChangeCipherSpec, r) - case TLSAlert: - var r TLSAlertRecord - e := r.decodeFromBytes(h, data[hl:tl], df) - if e != nil { - return e - } - t.Alert = append(t.Alert, r) - case TLSHandshake: - var r TLSHandshakeRecord - e := r.decodeFromBytes(h, data[hl:tl], df) - if e != nil { - return e - } - t.Handshake = append(t.Handshake, r) - case TLSApplicationData: - var r TLSAppDataRecord - e := r.decodeFromBytes(h, data[hl:tl], df) - if e != nil { - return e - } - t.AppData = append(t.AppData, r) - } - - if len(data) == tl { - return nil - } - return t.decodeTLSRecords(data[tl:len(data)], df) -} - -// CanDecode implements gopacket.DecodingLayer. -func (t *TLS) CanDecode() gopacket.LayerClass { - return LayerTypeTLS -} - -// NextLayerType implements gopacket.DecodingLayer. -func (t *TLS) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypeZero -} - -// Payload returns nil, since TLS encrypted payload is inside TLSAppDataRecord -func (t *TLS) Payload() []byte { - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -func (t *TLS) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - totalLength := 0 - for _, record := range t.ChangeCipherSpec { - if opts.FixLengths { - record.Length = 1 - } - totalLength += 5 + 1 // length of header + record - } - for range t.Handshake { - totalLength += 5 - // TODO - } - for _, record := range t.AppData { - if opts.FixLengths { - record.Length = uint16(len(record.Payload)) - } - totalLength += 5 + len(record.Payload) - } - for _, record := range t.Alert { - if len(record.EncryptedMsg) == 0 { - if opts.FixLengths { - record.Length = 2 - } - totalLength += 5 + 2 - } else { - if opts.FixLengths { - record.Length = uint16(len(record.EncryptedMsg)) - } - totalLength += 5 + len(record.EncryptedMsg) - } - } - data, err := b.PrependBytes(totalLength) - if err != nil { - return err - } - off := 0 - for _, record := range t.ChangeCipherSpec { - off = encodeHeader(record.TLSRecordHeader, data, off) - data[off] = byte(record.Message) - off++ - } - for _, record := range t.Handshake { - off = encodeHeader(record.TLSRecordHeader, data, off) - // TODO - } - for _, record := range t.AppData { - off = encodeHeader(record.TLSRecordHeader, data, off) - copy(data[off:], record.Payload) - off += len(record.Payload) - } - for _, record := range t.Alert { - off = encodeHeader(record.TLSRecordHeader, data, off) - if len(record.EncryptedMsg) == 0 { - data[off] = byte(record.Level) - data[off+1] = byte(record.Description) - off += 2 - } else { - copy(data[off:], record.EncryptedMsg) - off += len(record.EncryptedMsg) - } - } - return nil -} - -func encodeHeader(header TLSRecordHeader, data []byte, offset int) int { - data[offset] = byte(header.ContentType) - binary.BigEndian.PutUint16(data[offset+1:], uint16(header.Version)) - binary.BigEndian.PutUint16(data[offset+3:], header.Length) - - return offset + 5 -} diff --git a/vendor/github.com/google/gopacket/layers/tls_alert.go b/vendor/github.com/google/gopacket/layers/tls_alert.go deleted file mode 100644 index 0c5aee0218..0000000000 --- a/vendor/github.com/google/gopacket/layers/tls_alert.go +++ /dev/null @@ -1,165 +0,0 @@ -// Copyright 2018 The GoPacket Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "errors" - "fmt" - - "github.com/google/gopacket" -) - -// TLSAlertLevel defines the alert level data type -type TLSAlertLevel uint8 - -// TLSAlertDescr defines the alert descrption data type -type TLSAlertDescr uint8 - -const ( - TLSAlertWarning TLSAlertLevel = 1 - TLSAlertFatal TLSAlertLevel = 2 - TLSAlertUnknownLevel TLSAlertLevel = 255 - - TLSAlertCloseNotify TLSAlertDescr = 0 - TLSAlertUnexpectedMessage TLSAlertDescr = 10 - TLSAlertBadRecordMac TLSAlertDescr = 20 - TLSAlertDecryptionFailedRESERVED TLSAlertDescr = 21 - TLSAlertRecordOverflow TLSAlertDescr = 22 - TLSAlertDecompressionFailure TLSAlertDescr = 30 - TLSAlertHandshakeFailure TLSAlertDescr = 40 - TLSAlertNoCertificateRESERVED TLSAlertDescr = 41 - TLSAlertBadCertificate TLSAlertDescr = 42 - TLSAlertUnsupportedCertificate TLSAlertDescr = 43 - TLSAlertCertificateRevoked TLSAlertDescr = 44 - TLSAlertCertificateExpired TLSAlertDescr = 45 - TLSAlertCertificateUnknown TLSAlertDescr = 46 - TLSAlertIllegalParameter TLSAlertDescr = 47 - TLSAlertUnknownCa TLSAlertDescr = 48 - TLSAlertAccessDenied TLSAlertDescr = 49 - TLSAlertDecodeError TLSAlertDescr = 50 - TLSAlertDecryptError TLSAlertDescr = 51 - TLSAlertExportRestrictionRESERVED TLSAlertDescr = 60 - TLSAlertProtocolVersion TLSAlertDescr = 70 - TLSAlertInsufficientSecurity TLSAlertDescr = 71 - TLSAlertInternalError TLSAlertDescr = 80 - TLSAlertUserCanceled TLSAlertDescr = 90 - TLSAlertNoRenegotiation TLSAlertDescr = 100 - TLSAlertUnsupportedExtension TLSAlertDescr = 110 - TLSAlertUnknownDescription TLSAlertDescr = 255 -) - -// TLS Alert -// 0 1 2 3 4 5 6 7 8 -// +--+--+--+--+--+--+--+--+ -// | Level | -// +--+--+--+--+--+--+--+--+ -// | Description | -// +--+--+--+--+--+--+--+--+ - -// TLSAlertRecord contains all the information that each Alert Record type should have -type TLSAlertRecord struct { - TLSRecordHeader - - Level TLSAlertLevel - Description TLSAlertDescr - - EncryptedMsg []byte -} - -// DecodeFromBytes decodes the slice into the TLS struct. -func (t *TLSAlertRecord) decodeFromBytes(h TLSRecordHeader, data []byte, df gopacket.DecodeFeedback) error { - // TLS Record Header - t.ContentType = h.ContentType - t.Version = h.Version - t.Length = h.Length - - if len(data) < 2 { - df.SetTruncated() - return errors.New("TLS Alert packet too short") - } - - if t.Length == 2 { - t.Level = TLSAlertLevel(data[0]) - t.Description = TLSAlertDescr(data[1]) - } else { - t.Level = TLSAlertUnknownLevel - t.Description = TLSAlertUnknownDescription - t.EncryptedMsg = data - } - - return nil -} - -// Strings shows the TLS alert level nicely formatted -func (al TLSAlertLevel) String() string { - switch al { - default: - return fmt.Sprintf("Unknown(%d)", al) - case TLSAlertWarning: - return "Warning" - case TLSAlertFatal: - return "Fatal" - } -} - -// Strings shows the TLS alert description nicely formatted -func (ad TLSAlertDescr) String() string { - switch ad { - default: - return "Unknown" - case TLSAlertCloseNotify: - return "close_notify" - case TLSAlertUnexpectedMessage: - return "unexpected_message" - case TLSAlertBadRecordMac: - return "bad_record_mac" - case TLSAlertDecryptionFailedRESERVED: - return "decryption_failed_RESERVED" - case TLSAlertRecordOverflow: - return "record_overflow" - case TLSAlertDecompressionFailure: - return "decompression_failure" - case TLSAlertHandshakeFailure: - return "handshake_failure" - case TLSAlertNoCertificateRESERVED: - return "no_certificate_RESERVED" - case TLSAlertBadCertificate: - return "bad_certificate" - case TLSAlertUnsupportedCertificate: - return "unsupported_certificate" - case TLSAlertCertificateRevoked: - return "certificate_revoked" - case TLSAlertCertificateExpired: - return "certificate_expired" - case TLSAlertCertificateUnknown: - return "certificate_unknown" - case TLSAlertIllegalParameter: - return "illegal_parameter" - case TLSAlertUnknownCa: - return "unknown_ca" - case TLSAlertAccessDenied: - return "access_denied" - case TLSAlertDecodeError: - return "decode_error" - case TLSAlertDecryptError: - return "decrypt_error" - case TLSAlertExportRestrictionRESERVED: - return "export_restriction_RESERVED" - case TLSAlertProtocolVersion: - return "protocol_version" - case TLSAlertInsufficientSecurity: - return "insufficient_security" - case TLSAlertInternalError: - return "internal_error" - case TLSAlertUserCanceled: - return "user_canceled" - case TLSAlertNoRenegotiation: - return "no_renegotiation" - case TLSAlertUnsupportedExtension: - return "unsupported_extension" - } -} diff --git a/vendor/github.com/google/gopacket/layers/tls_appdata.go b/vendor/github.com/google/gopacket/layers/tls_appdata.go deleted file mode 100644 index dedd1d587b..0000000000 --- a/vendor/github.com/google/gopacket/layers/tls_appdata.go +++ /dev/null @@ -1,34 +0,0 @@ -// Copyright 2018 The GoPacket Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "errors" - - "github.com/google/gopacket" -) - -// TLSAppDataRecord contains all the information that each AppData Record types should have -type TLSAppDataRecord struct { - TLSRecordHeader - Payload []byte -} - -// DecodeFromBytes decodes the slice into the TLS struct. -func (t *TLSAppDataRecord) decodeFromBytes(h TLSRecordHeader, data []byte, df gopacket.DecodeFeedback) error { - // TLS Record Header - t.ContentType = h.ContentType - t.Version = h.Version - t.Length = h.Length - - if len(data) != int(t.Length) { - return errors.New("TLS Application Data length mismatch") - } - - t.Payload = data - return nil -} diff --git a/vendor/github.com/google/gopacket/layers/tls_cipherspec.go b/vendor/github.com/google/gopacket/layers/tls_cipherspec.go deleted file mode 100644 index 8f3dc62ba5..0000000000 --- a/vendor/github.com/google/gopacket/layers/tls_cipherspec.go +++ /dev/null @@ -1,64 +0,0 @@ -// Copyright 2018 The GoPacket Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "errors" - - "github.com/google/gopacket" -) - -// TLSchangeCipherSpec defines the message value inside ChangeCipherSpec Record -type TLSchangeCipherSpec uint8 - -const ( - TLSChangecipherspecMessage TLSchangeCipherSpec = 1 - TLSChangecipherspecUnknown TLSchangeCipherSpec = 255 -) - -// TLS Change Cipher Spec -// 0 1 2 3 4 5 6 7 8 -// +--+--+--+--+--+--+--+--+ -// | Message | -// +--+--+--+--+--+--+--+--+ - -// TLSChangeCipherSpecRecord defines the type of data inside ChangeCipherSpec Record -type TLSChangeCipherSpecRecord struct { - TLSRecordHeader - - Message TLSchangeCipherSpec -} - -// DecodeFromBytes decodes the slice into the TLS struct. -func (t *TLSChangeCipherSpecRecord) decodeFromBytes(h TLSRecordHeader, data []byte, df gopacket.DecodeFeedback) error { - // TLS Record Header - t.ContentType = h.ContentType - t.Version = h.Version - t.Length = h.Length - - if len(data) != 1 { - df.SetTruncated() - return errors.New("TLS Change Cipher Spec record incorrect length") - } - - t.Message = TLSchangeCipherSpec(data[0]) - if t.Message != TLSChangecipherspecMessage { - t.Message = TLSChangecipherspecUnknown - } - - return nil -} - -// String shows the message value nicely formatted -func (ccs TLSchangeCipherSpec) String() string { - switch ccs { - default: - return "Unknown" - case TLSChangecipherspecMessage: - return "Change Cipher Spec Message" - } -} diff --git a/vendor/github.com/google/gopacket/layers/tls_handshake.go b/vendor/github.com/google/gopacket/layers/tls_handshake.go deleted file mode 100644 index e45e2c7cbc..0000000000 --- a/vendor/github.com/google/gopacket/layers/tls_handshake.go +++ /dev/null @@ -1,28 +0,0 @@ -// Copyright 2018 The GoPacket Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "github.com/google/gopacket" -) - -// TLSHandshakeRecord defines the structure of a Handshare Record -type TLSHandshakeRecord struct { - TLSRecordHeader -} - -// DecodeFromBytes decodes the slice into the TLS struct. -func (t *TLSHandshakeRecord) decodeFromBytes(h TLSRecordHeader, data []byte, df gopacket.DecodeFeedback) error { - // TLS Record Header - t.ContentType = h.ContentType - t.Version = h.Version - t.Length = h.Length - - // TODO - - return nil -} diff --git a/vendor/github.com/google/gopacket/layers/udp.go b/vendor/github.com/google/gopacket/layers/udp.go deleted file mode 100644 index 97e81c69fc..0000000000 --- a/vendor/github.com/google/gopacket/layers/udp.go +++ /dev/null @@ -1,133 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// Copyright 2009-2011 Andreas Krennmair. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "fmt" - - "github.com/google/gopacket" -) - -// UDP is the layer for UDP headers. -type UDP struct { - BaseLayer - SrcPort, DstPort UDPPort - Length uint16 - Checksum uint16 - sPort, dPort []byte - tcpipchecksum -} - -// LayerType returns gopacket.LayerTypeUDP -func (u *UDP) LayerType() gopacket.LayerType { return LayerTypeUDP } - -func (udp *UDP) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 8 { - df.SetTruncated() - return fmt.Errorf("Invalid UDP header. Length %d less than 8", len(data)) - } - udp.SrcPort = UDPPort(binary.BigEndian.Uint16(data[0:2])) - udp.sPort = data[0:2] - udp.DstPort = UDPPort(binary.BigEndian.Uint16(data[2:4])) - udp.dPort = data[2:4] - udp.Length = binary.BigEndian.Uint16(data[4:6]) - udp.Checksum = binary.BigEndian.Uint16(data[6:8]) - udp.BaseLayer = BaseLayer{Contents: data[:8]} - switch { - case udp.Length >= 8: - hlen := int(udp.Length) - if hlen > len(data) { - df.SetTruncated() - hlen = len(data) - } - udp.Payload = data[8:hlen] - case udp.Length == 0: // Jumbogram, use entire rest of data - udp.Payload = data[8:] - default: - return fmt.Errorf("UDP packet too small: %d bytes", udp.Length) - } - return nil -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (u *UDP) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - var jumbo bool - - payload := b.Bytes() - if _, ok := u.pseudoheader.(*IPv6); ok { - if len(payload)+8 > 65535 { - jumbo = true - } - } - bytes, err := b.PrependBytes(8) - if err != nil { - return err - } - binary.BigEndian.PutUint16(bytes, uint16(u.SrcPort)) - binary.BigEndian.PutUint16(bytes[2:], uint16(u.DstPort)) - if opts.FixLengths { - if jumbo { - u.Length = 0 - } else { - u.Length = uint16(len(payload)) + 8 - } - } - binary.BigEndian.PutUint16(bytes[4:], u.Length) - if opts.ComputeChecksums { - // zero out checksum bytes - bytes[6] = 0 - bytes[7] = 0 - csum, err := u.computeChecksum(b.Bytes(), IPProtocolUDP) - if err != nil { - return err - } - u.Checksum = csum - } - binary.BigEndian.PutUint16(bytes[6:], u.Checksum) - return nil -} - -func (u *UDP) CanDecode() gopacket.LayerClass { - return LayerTypeUDP -} - -// NextLayerType use the destination port to select the -// right next decoder. It tries first to decode via the -// destination port, then the source port. -func (u *UDP) NextLayerType() gopacket.LayerType { - if lt := u.DstPort.LayerType(); lt != gopacket.LayerTypePayload { - return lt - } - return u.SrcPort.LayerType() -} - -func decodeUDP(data []byte, p gopacket.PacketBuilder) error { - udp := &UDP{} - err := udp.DecodeFromBytes(data, p) - p.AddLayer(udp) - p.SetTransportLayer(udp) - if err != nil { - return err - } - return p.NextDecoder(udp.NextLayerType()) -} - -func (u *UDP) TransportFlow() gopacket.Flow { - return gopacket.NewFlow(EndpointUDPPort, u.sPort, u.dPort) -} - -// For testing only -func (u *UDP) SetInternalPortsForTesting() { - u.sPort = make([]byte, 2) - u.dPort = make([]byte, 2) - binary.BigEndian.PutUint16(u.sPort, uint16(u.SrcPort)) - binary.BigEndian.PutUint16(u.dPort, uint16(u.DstPort)) -} diff --git a/vendor/github.com/google/gopacket/layers/udplite.go b/vendor/github.com/google/gopacket/layers/udplite.go deleted file mode 100644 index 7d84c51463..0000000000 --- a/vendor/github.com/google/gopacket/layers/udplite.go +++ /dev/null @@ -1,44 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// Copyright 2009-2011 Andreas Krennmair. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "github.com/google/gopacket" -) - -// UDPLite is the layer for UDP-Lite headers (rfc 3828). -type UDPLite struct { - BaseLayer - SrcPort, DstPort UDPLitePort - ChecksumCoverage uint16 - Checksum uint16 - sPort, dPort []byte -} - -// LayerType returns gopacket.LayerTypeUDPLite -func (u *UDPLite) LayerType() gopacket.LayerType { return LayerTypeUDPLite } - -func decodeUDPLite(data []byte, p gopacket.PacketBuilder) error { - udp := &UDPLite{ - SrcPort: UDPLitePort(binary.BigEndian.Uint16(data[0:2])), - sPort: data[0:2], - DstPort: UDPLitePort(binary.BigEndian.Uint16(data[2:4])), - dPort: data[2:4], - ChecksumCoverage: binary.BigEndian.Uint16(data[4:6]), - Checksum: binary.BigEndian.Uint16(data[6:8]), - BaseLayer: BaseLayer{data[:8], data[8:]}, - } - p.AddLayer(udp) - p.SetTransportLayer(udp) - return p.NextDecoder(gopacket.LayerTypePayload) -} - -func (u *UDPLite) TransportFlow() gopacket.Flow { - return gopacket.NewFlow(EndpointUDPLitePort, u.sPort, u.dPort) -} diff --git a/vendor/github.com/google/gopacket/layers/usb.go b/vendor/github.com/google/gopacket/layers/usb.go deleted file mode 100644 index d611e0fd06..0000000000 --- a/vendor/github.com/google/gopacket/layers/usb.go +++ /dev/null @@ -1,292 +0,0 @@ -// Copyright 2014 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "github.com/google/gopacket" -) - -type USBEventType uint8 - -const ( - USBEventTypeSubmit USBEventType = 'S' - USBEventTypeComplete USBEventType = 'C' - USBEventTypeError USBEventType = 'E' -) - -func (a USBEventType) String() string { - switch a { - case USBEventTypeSubmit: - return "SUBMIT" - case USBEventTypeComplete: - return "COMPLETE" - case USBEventTypeError: - return "ERROR" - default: - return "Unknown event type" - } -} - -type USBRequestBlockSetupRequest uint8 - -const ( - USBRequestBlockSetupRequestGetStatus USBRequestBlockSetupRequest = 0x00 - USBRequestBlockSetupRequestClearFeature USBRequestBlockSetupRequest = 0x01 - USBRequestBlockSetupRequestSetFeature USBRequestBlockSetupRequest = 0x03 - USBRequestBlockSetupRequestSetAddress USBRequestBlockSetupRequest = 0x05 - USBRequestBlockSetupRequestGetDescriptor USBRequestBlockSetupRequest = 0x06 - USBRequestBlockSetupRequestSetDescriptor USBRequestBlockSetupRequest = 0x07 - USBRequestBlockSetupRequestGetConfiguration USBRequestBlockSetupRequest = 0x08 - USBRequestBlockSetupRequestSetConfiguration USBRequestBlockSetupRequest = 0x09 - USBRequestBlockSetupRequestSetIdle USBRequestBlockSetupRequest = 0x0a -) - -func (a USBRequestBlockSetupRequest) String() string { - switch a { - case USBRequestBlockSetupRequestGetStatus: - return "GET_STATUS" - case USBRequestBlockSetupRequestClearFeature: - return "CLEAR_FEATURE" - case USBRequestBlockSetupRequestSetFeature: - return "SET_FEATURE" - case USBRequestBlockSetupRequestSetAddress: - return "SET_ADDRESS" - case USBRequestBlockSetupRequestGetDescriptor: - return "GET_DESCRIPTOR" - case USBRequestBlockSetupRequestSetDescriptor: - return "SET_DESCRIPTOR" - case USBRequestBlockSetupRequestGetConfiguration: - return "GET_CONFIGURATION" - case USBRequestBlockSetupRequestSetConfiguration: - return "SET_CONFIGURATION" - case USBRequestBlockSetupRequestSetIdle: - return "SET_IDLE" - default: - return "UNKNOWN" - } -} - -type USBTransportType uint8 - -const ( - USBTransportTypeTransferIn USBTransportType = 0x80 // Indicates send or receive - USBTransportTypeIsochronous USBTransportType = 0x00 // Isochronous transfers occur continuously and periodically. They typically contain time sensitive information, such as an audio or video stream. - USBTransportTypeInterrupt USBTransportType = 0x01 // Interrupt transfers are typically non-periodic, small device "initiated" communication requiring bounded latency, such as pointing devices or keyboards. - USBTransportTypeControl USBTransportType = 0x02 // Control transfers are typically used for command and status operations. - USBTransportTypeBulk USBTransportType = 0x03 // Bulk transfers can be used for large bursty data, using all remaining available bandwidth, no guarantees on bandwidth or latency, such as file transfers. -) - -type USBDirectionType uint8 - -const ( - USBDirectionTypeUnknown USBDirectionType = iota - USBDirectionTypeIn - USBDirectionTypeOut -) - -func (a USBDirectionType) String() string { - switch a { - case USBDirectionTypeIn: - return "In" - case USBDirectionTypeOut: - return "Out" - default: - return "Unknown direction type" - } -} - -// The reference at http://www.beyondlogic.org/usbnutshell/usb1.shtml contains more information about the protocol. -type USB struct { - BaseLayer - ID uint64 - EventType USBEventType - TransferType USBTransportType - Direction USBDirectionType - EndpointNumber uint8 - DeviceAddress uint8 - BusID uint16 - TimestampSec int64 - TimestampUsec int32 - Setup bool - Data bool - Status int32 - UrbLength uint32 - UrbDataLength uint32 - - UrbInterval uint32 - UrbStartFrame uint32 - UrbCopyOfTransferFlags uint32 - IsoNumDesc uint32 -} - -func (u *USB) LayerType() gopacket.LayerType { return LayerTypeUSB } - -func (m *USB) NextLayerType() gopacket.LayerType { - if m.Setup { - return LayerTypeUSBRequestBlockSetup - } else if m.Data { - } - - return m.TransferType.LayerType() -} - -func decodeUSB(data []byte, p gopacket.PacketBuilder) error { - d := &USB{} - - return decodingLayerDecoder(d, data, p) -} - -func (m *USB) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 40 { - df.SetTruncated() - return errors.New("USB < 40 bytes") - } - m.ID = binary.LittleEndian.Uint64(data[0:8]) - m.EventType = USBEventType(data[8]) - m.TransferType = USBTransportType(data[9]) - - m.EndpointNumber = data[10] & 0x7f - if data[10]&uint8(USBTransportTypeTransferIn) > 0 { - m.Direction = USBDirectionTypeIn - } else { - m.Direction = USBDirectionTypeOut - } - - m.DeviceAddress = data[11] - m.BusID = binary.LittleEndian.Uint16(data[12:14]) - - if uint(data[14]) == 0 { - m.Setup = true - } - - if uint(data[15]) == 0 { - m.Data = true - } - - m.TimestampSec = int64(binary.LittleEndian.Uint64(data[16:24])) - m.TimestampUsec = int32(binary.LittleEndian.Uint32(data[24:28])) - m.Status = int32(binary.LittleEndian.Uint32(data[28:32])) - m.UrbLength = binary.LittleEndian.Uint32(data[32:36]) - m.UrbDataLength = binary.LittleEndian.Uint32(data[36:40]) - - m.Contents = data[:40] - m.Payload = data[40:] - - if m.Setup { - m.Payload = data[40:] - } else if m.Data { - m.Payload = data[uint32(len(data))-m.UrbDataLength:] - } - - // if 64 bit, dissect_linux_usb_pseudo_header_ext - if false { - m.UrbInterval = binary.LittleEndian.Uint32(data[40:44]) - m.UrbStartFrame = binary.LittleEndian.Uint32(data[44:48]) - m.UrbDataLength = binary.LittleEndian.Uint32(data[48:52]) - m.IsoNumDesc = binary.LittleEndian.Uint32(data[52:56]) - m.Contents = data[:56] - m.Payload = data[56:] - } - - // crc5 or crc16 - // eop (end of packet) - - return nil -} - -type USBRequestBlockSetup struct { - BaseLayer - RequestType uint8 - Request USBRequestBlockSetupRequest - Value uint16 - Index uint16 - Length uint16 -} - -func (u *USBRequestBlockSetup) LayerType() gopacket.LayerType { return LayerTypeUSBRequestBlockSetup } - -func (m *USBRequestBlockSetup) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -func (m *USBRequestBlockSetup) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - m.RequestType = data[0] - m.Request = USBRequestBlockSetupRequest(data[1]) - m.Value = binary.LittleEndian.Uint16(data[2:4]) - m.Index = binary.LittleEndian.Uint16(data[4:6]) - m.Length = binary.LittleEndian.Uint16(data[6:8]) - m.Contents = data[:8] - m.Payload = data[8:] - return nil -} - -func decodeUSBRequestBlockSetup(data []byte, p gopacket.PacketBuilder) error { - d := &USBRequestBlockSetup{} - return decodingLayerDecoder(d, data, p) -} - -type USBControl struct { - BaseLayer -} - -func (u *USBControl) LayerType() gopacket.LayerType { return LayerTypeUSBControl } - -func (m *USBControl) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -func (m *USBControl) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - m.Contents = data - return nil -} - -func decodeUSBControl(data []byte, p gopacket.PacketBuilder) error { - d := &USBControl{} - return decodingLayerDecoder(d, data, p) -} - -type USBInterrupt struct { - BaseLayer -} - -func (u *USBInterrupt) LayerType() gopacket.LayerType { return LayerTypeUSBInterrupt } - -func (m *USBInterrupt) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -func (m *USBInterrupt) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - m.Contents = data - return nil -} - -func decodeUSBInterrupt(data []byte, p gopacket.PacketBuilder) error { - d := &USBInterrupt{} - return decodingLayerDecoder(d, data, p) -} - -type USBBulk struct { - BaseLayer -} - -func (u *USBBulk) LayerType() gopacket.LayerType { return LayerTypeUSBBulk } - -func (m *USBBulk) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypePayload -} - -func (m *USBBulk) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - m.Contents = data - return nil -} - -func decodeUSBBulk(data []byte, p gopacket.PacketBuilder) error { - d := &USBBulk{} - return decodingLayerDecoder(d, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/vrrp.go b/vendor/github.com/google/gopacket/layers/vrrp.go deleted file mode 100644 index ffaafe6a77..0000000000 --- a/vendor/github.com/google/gopacket/layers/vrrp.go +++ /dev/null @@ -1,156 +0,0 @@ -// Copyright 2016 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "net" - - "github.com/google/gopacket" -) - -/* - This layer provides decoding for Virtual Router Redundancy Protocol (VRRP) v2. - https://tools.ietf.org/html/rfc3768#section-5 - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - |Version| Type | Virtual Rtr ID| Priority | Count IP Addrs| - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Auth Type | Adver Int | Checksum | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | IP Address (1) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | . | - | . | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | IP Address (n) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Authentication Data (1) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Authentication Data (2) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -*/ - -type VRRPv2Type uint8 -type VRRPv2AuthType uint8 - -const ( - VRRPv2Advertisement VRRPv2Type = 0x01 // router advertisement -) - -// String conversions for VRRP message types -func (v VRRPv2Type) String() string { - switch v { - case VRRPv2Advertisement: - return "VRRPv2 Advertisement" - default: - return "" - } -} - -const ( - VRRPv2AuthNoAuth VRRPv2AuthType = 0x00 // No Authentication - VRRPv2AuthReserved1 VRRPv2AuthType = 0x01 // Reserved field 1 - VRRPv2AuthReserved2 VRRPv2AuthType = 0x02 // Reserved field 2 -) - -func (v VRRPv2AuthType) String() string { - switch v { - case VRRPv2AuthNoAuth: - return "No Authentication" - case VRRPv2AuthReserved1: - return "Reserved" - case VRRPv2AuthReserved2: - return "Reserved" - default: - return "" - } -} - -// VRRPv2 represents an VRRP v2 message. -type VRRPv2 struct { - BaseLayer - Version uint8 // The version field specifies the VRRP protocol version of this packet (v2) - Type VRRPv2Type // The type field specifies the type of this VRRP packet. The only type defined in v2 is ADVERTISEMENT - VirtualRtrID uint8 // identifies the virtual router this packet is reporting status for - Priority uint8 // specifies the sending VRRP router's priority for the virtual router (100 = default) - CountIPAddr uint8 // The number of IP addresses contained in this VRRP advertisement. - AuthType VRRPv2AuthType // identifies the authentication method being utilized - AdverInt uint8 // The Advertisement interval indicates the time interval (in seconds) between ADVERTISEMENTS. The default is 1 second - Checksum uint16 // used to detect data corruption in the VRRP message. - IPAddress []net.IP // one or more IP addresses associated with the virtual router. Specified in the CountIPAddr field. -} - -// LayerType returns LayerTypeVRRP for VRRP v2 message. -func (v *VRRPv2) LayerType() gopacket.LayerType { return LayerTypeVRRP } - -func (v *VRRPv2) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - - v.BaseLayer = BaseLayer{Contents: data[:len(data)]} - v.Version = data[0] >> 4 // high nibble == VRRP version. We're expecting v2 - - v.Type = VRRPv2Type(data[0] & 0x0F) // low nibble == VRRP type. Expecting 1 (advertisement) - if v.Type != 1 { - // rfc3768: A packet with unknown type MUST be discarded. - return errors.New("Unrecognized VRRPv2 type field.") - } - - v.VirtualRtrID = data[1] - v.Priority = data[2] - - v.CountIPAddr = data[3] - if v.CountIPAddr < 1 { - return errors.New("VRRPv2 number of IP addresses is not valid.") - } - - v.AuthType = VRRPv2AuthType(data[4]) - v.AdverInt = uint8(data[5]) - v.Checksum = binary.BigEndian.Uint16(data[6:8]) - - // populate the IPAddress field. The number of addresses is specified in the v.CountIPAddr field - // offset references the starting byte containing the list of ip addresses - offset := 8 - for i := uint8(0); i < v.CountIPAddr; i++ { - v.IPAddress = append(v.IPAddress, data[offset:offset+4]) - offset += 4 - } - - // any trailing packets here may be authentication data and *should* be ignored in v2 as per RFC - // - // 5.3.10. Authentication Data - // - // The authentication string is currently only used to maintain - // backwards compatibility with RFC 2338. It SHOULD be set to zero on - // transmission and ignored on reception. - return nil -} - -// CanDecode specifies the layer type in which we are attempting to unwrap. -func (v *VRRPv2) CanDecode() gopacket.LayerClass { - return LayerTypeVRRP -} - -// NextLayerType specifies the next layer that should be decoded. VRRP does not contain any further payload, so we set to 0 -func (v *VRRPv2) NextLayerType() gopacket.LayerType { - return gopacket.LayerTypeZero -} - -// The VRRP packet does not include payload data. Setting byte slice to nil -func (v *VRRPv2) Payload() []byte { - return nil -} - -// decodeVRRP will parse VRRP v2 -func decodeVRRP(data []byte, p gopacket.PacketBuilder) error { - if len(data) < 8 { - return errors.New("Not a valid VRRP packet. Packet length is too small.") - } - v := &VRRPv2{} - return decodingLayerDecoder(v, data, p) -} diff --git a/vendor/github.com/google/gopacket/layers/vxlan.go b/vendor/github.com/google/gopacket/layers/vxlan.go deleted file mode 100644 index e479cd81f3..0000000000 --- a/vendor/github.com/google/gopacket/layers/vxlan.go +++ /dev/null @@ -1,123 +0,0 @@ -// Copyright 2016 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package layers - -import ( - "encoding/binary" - "errors" - "fmt" - - "github.com/google/gopacket" -) - -// VXLAN is specifed in RFC 7348 https://tools.ietf.org/html/rfc7348 -// G, D, A, Group Policy ID from https://tools.ietf.org/html/draft-smith-vxlan-group-policy-00 -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// 0 8 16 24 32 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// |G|R|R|R|I|R|R|R|R|D|R|R|A|R|R|R| Group Policy ID | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | 24 bit VXLAN Network Identifier | Reserved | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - -// VXLAN is a VXLAN packet header -type VXLAN struct { - BaseLayer - ValidIDFlag bool // 'I' bit per RFC 7348 - VNI uint32 // 'VXLAN Network Identifier' 24 bits per RFC 7348 - GBPExtension bool // 'G' bit per Group Policy https://tools.ietf.org/html/draft-smith-vxlan-group-policy-00 - GBPDontLearn bool // 'D' bit per Group Policy - GBPApplied bool // 'A' bit per Group Policy - GBPGroupPolicyID uint16 // 'Group Policy ID' 16 bits per Group Policy -} - -// LayerType returns LayerTypeVXLAN -func (vx *VXLAN) LayerType() gopacket.LayerType { return LayerTypeVXLAN } - -// CanDecode returns the layer type this DecodingLayer can decode -func (vx *VXLAN) CanDecode() gopacket.LayerClass { - return LayerTypeVXLAN -} - -// NextLayerType retuns the next layer we should see after vxlan -func (vx *VXLAN) NextLayerType() gopacket.LayerType { - return LayerTypeEthernet -} - -// DecodeFromBytes takes a byte buffer and decodes -func (vx *VXLAN) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - if len(data) < 8 { - return errors.New("vxlan packet too small") - } - // VNI is a 24bit number, Uint32 requires 32 bits - var buf [4]byte - copy(buf[1:], data[4:7]) - - // RFC 7348 https://tools.ietf.org/html/rfc7348 - vx.ValidIDFlag = data[0]&0x08 > 0 // 'I' bit per RFC7348 - vx.VNI = binary.BigEndian.Uint32(buf[:]) // VXLAN Network Identifier per RFC7348 - - // Group Based Policy https://tools.ietf.org/html/draft-smith-vxlan-group-policy-00 - vx.GBPExtension = data[0]&0x80 > 0 // 'G' bit per the group policy draft - vx.GBPDontLearn = data[1]&0x40 > 0 // 'D' bit - the egress VTEP MUST NOT learn the source address of the encapsulated frame. - vx.GBPApplied = data[1]&0x80 > 0 // 'A' bit - indicates that the group policy has already been applied to this packet. - vx.GBPGroupPolicyID = binary.BigEndian.Uint16(data[2:4]) // Policy ID as per the group policy draft - - // Layer information - const vxlanLength = 8 - vx.Contents = data[:vxlanLength] - vx.Payload = data[vxlanLength:] - - return nil - -} - -func decodeVXLAN(data []byte, p gopacket.PacketBuilder) error { - vx := &VXLAN{} - err := vx.DecodeFromBytes(data, p) - if err != nil { - return err - } - - p.AddLayer(vx) - return p.NextDecoder(LinkTypeEthernet) -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (vx *VXLAN) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - bytes, err := b.PrependBytes(8) - if err != nil { - return err - } - - // PrependBytes does not guarantee that bytes are zeroed. Setting flags via OR requires that they start off at zero - bytes[0] = 0 - bytes[1] = 0 - - if vx.ValidIDFlag { - bytes[0] |= 0x08 - } - if vx.GBPExtension { - bytes[0] |= 0x80 - } - if vx.GBPDontLearn { - bytes[1] |= 0x40 - } - if vx.GBPApplied { - bytes[1] |= 0x80 - } - - binary.BigEndian.PutUint16(bytes[2:4], vx.GBPGroupPolicyID) - if vx.VNI >= 1<<24 { - return fmt.Errorf("Virtual Network Identifier = %x exceeds max for 24-bit uint", vx.VNI) - } - binary.BigEndian.PutUint32(bytes[4:8], vx.VNI<<8) - return nil -} diff --git a/vendor/github.com/google/gopacket/layers_decoder.go b/vendor/github.com/google/gopacket/layers_decoder.go deleted file mode 100644 index 8c1f108cfc..0000000000 --- a/vendor/github.com/google/gopacket/layers_decoder.go +++ /dev/null @@ -1,101 +0,0 @@ -// Copyright 2019 The GoPacket Authors. All rights reserved. - -package gopacket - -// Created by gen.go, don't edit manually -// Generated at 2019-06-18 11:37:31.308731293 +0600 +06 m=+0.000842599 - -// LayersDecoder returns DecodingLayerFunc for specified -// DecodingLayerContainer, LayerType value to start decoding with and -// some DecodeFeedback. -func LayersDecoder(dl DecodingLayerContainer, first LayerType, df DecodeFeedback) DecodingLayerFunc { - firstDec, ok := dl.Decoder(first) - if !ok { - return func([]byte, *[]LayerType) (LayerType, error) { - return first, nil - } - } - if dlc, ok := dl.(DecodingLayerSparse); ok { - return func(data []byte, decoded *[]LayerType) (LayerType, error) { - *decoded = (*decoded)[:0] // Truncated decoded layers. - typ := first - decoder := firstDec - for { - if err := decoder.DecodeFromBytes(data, df); err != nil { - return LayerTypeZero, err - } - *decoded = append(*decoded, typ) - typ = decoder.NextLayerType() - if data = decoder.LayerPayload(); len(data) == 0 { - break - } - if decoder, ok = dlc.Decoder(typ); !ok { - return typ, nil - } - } - return LayerTypeZero, nil - } - } - if dlc, ok := dl.(DecodingLayerArray); ok { - return func(data []byte, decoded *[]LayerType) (LayerType, error) { - *decoded = (*decoded)[:0] // Truncated decoded layers. - typ := first - decoder := firstDec - for { - if err := decoder.DecodeFromBytes(data, df); err != nil { - return LayerTypeZero, err - } - *decoded = append(*decoded, typ) - typ = decoder.NextLayerType() - if data = decoder.LayerPayload(); len(data) == 0 { - break - } - if decoder, ok = dlc.Decoder(typ); !ok { - return typ, nil - } - } - return LayerTypeZero, nil - } - } - if dlc, ok := dl.(DecodingLayerMap); ok { - return func(data []byte, decoded *[]LayerType) (LayerType, error) { - *decoded = (*decoded)[:0] // Truncated decoded layers. - typ := first - decoder := firstDec - for { - if err := decoder.DecodeFromBytes(data, df); err != nil { - return LayerTypeZero, err - } - *decoded = append(*decoded, typ) - typ = decoder.NextLayerType() - if data = decoder.LayerPayload(); len(data) == 0 { - break - } - if decoder, ok = dlc.Decoder(typ); !ok { - return typ, nil - } - } - return LayerTypeZero, nil - } - } - dlc := dl - return func(data []byte, decoded *[]LayerType) (LayerType, error) { - *decoded = (*decoded)[:0] // Truncated decoded layers. - typ := first - decoder := firstDec - for { - if err := decoder.DecodeFromBytes(data, df); err != nil { - return LayerTypeZero, err - } - *decoded = append(*decoded, typ) - typ = decoder.NextLayerType() - if data = decoder.LayerPayload(); len(data) == 0 { - break - } - if decoder, ok = dlc.Decoder(typ); !ok { - return typ, nil - } - } - return LayerTypeZero, nil - } -} diff --git a/vendor/github.com/google/gopacket/layertype.go b/vendor/github.com/google/gopacket/layertype.go deleted file mode 100644 index 3abfee1e9b..0000000000 --- a/vendor/github.com/google/gopacket/layertype.go +++ /dev/null @@ -1,111 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package gopacket - -import ( - "fmt" - "strconv" -) - -// LayerType is a unique identifier for each type of layer. This enumeration -// does not match with any externally available numbering scheme... it's solely -// usable/useful within this library as a means for requesting layer types -// (see Packet.Layer) and determining which types of layers have been decoded. -// -// New LayerTypes may be created by calling gopacket.RegisterLayerType. -type LayerType int64 - -// LayerTypeMetadata contains metadata associated with each LayerType. -type LayerTypeMetadata struct { - // Name is the string returned by each layer type's String method. - Name string - // Decoder is the decoder to use when the layer type is passed in as a - // Decoder. - Decoder Decoder -} - -type layerTypeMetadata struct { - inUse bool - LayerTypeMetadata -} - -// DecodersByLayerName maps layer names to decoders for those layers. -// This allows users to specify decoders by name to a program and have that -// program pick the correct decoder accordingly. -var DecodersByLayerName = map[string]Decoder{} - -const maxLayerType = 2000 - -var ltMeta [maxLayerType]layerTypeMetadata -var ltMetaMap = map[LayerType]layerTypeMetadata{} - -// RegisterLayerType creates a new layer type and registers it globally. -// The number passed in must be unique, or a runtime panic will occur. Numbers -// 0-999 are reserved for the gopacket library. Numbers 1000-1999 should be -// used for common application-specific types, and are very fast. Any other -// number (negative or >= 2000) may be used for uncommon application-specific -// types, and are somewhat slower (they require a map lookup over an array -// index). -func RegisterLayerType(num int, meta LayerTypeMetadata) LayerType { - if 0 <= num && num < maxLayerType { - if ltMeta[num].inUse { - panic("Layer type already exists") - } - } else { - if ltMetaMap[LayerType(num)].inUse { - panic("Layer type already exists") - } - } - return OverrideLayerType(num, meta) -} - -// OverrideLayerType acts like RegisterLayerType, except that if the layer type -// has already been registered, it overrides the metadata with the passed-in -// metadata intead of panicing. -func OverrideLayerType(num int, meta LayerTypeMetadata) LayerType { - if 0 <= num && num < maxLayerType { - ltMeta[num] = layerTypeMetadata{ - inUse: true, - LayerTypeMetadata: meta, - } - } else { - ltMetaMap[LayerType(num)] = layerTypeMetadata{ - inUse: true, - LayerTypeMetadata: meta, - } - } - DecodersByLayerName[meta.Name] = meta.Decoder - return LayerType(num) -} - -// Decode decodes the given data using the decoder registered with the layer -// type. -func (t LayerType) Decode(data []byte, c PacketBuilder) error { - var d Decoder - if 0 <= int(t) && int(t) < maxLayerType { - d = ltMeta[int(t)].Decoder - } else { - d = ltMetaMap[t].Decoder - } - if d != nil { - return d.Decode(data, c) - } - return fmt.Errorf("Layer type %v has no associated decoder", t) -} - -// String returns the string associated with this layer type. -func (t LayerType) String() (s string) { - if 0 <= int(t) && int(t) < maxLayerType { - s = ltMeta[int(t)].Name - } else { - s = ltMetaMap[t].Name - } - if s == "" { - s = strconv.Itoa(int(t)) - } - return -} diff --git a/vendor/github.com/google/gopacket/packet.go b/vendor/github.com/google/gopacket/packet.go deleted file mode 100644 index 3a7c4b3d80..0000000000 --- a/vendor/github.com/google/gopacket/packet.go +++ /dev/null @@ -1,864 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package gopacket - -import ( - "bytes" - "encoding/hex" - "errors" - "fmt" - "io" - "net" - "os" - "reflect" - "runtime/debug" - "strings" - "syscall" - "time" -) - -// CaptureInfo provides standardized information about a packet captured off -// the wire or read from a file. -type CaptureInfo struct { - // Timestamp is the time the packet was captured, if that is known. - Timestamp time.Time - // CaptureLength is the total number of bytes read off of the wire. - CaptureLength int - // Length is the size of the original packet. Should always be >= - // CaptureLength. - Length int - // InterfaceIndex - InterfaceIndex int - // The packet source can place ancillary data of various types here. - // For example, the afpacket source can report the VLAN of captured - // packets this way. - AncillaryData []interface{} -} - -// PacketMetadata contains metadata for a packet. -type PacketMetadata struct { - CaptureInfo - // Truncated is true if packet decoding logic detects that there are fewer - // bytes in the packet than are detailed in various headers (for example, if - // the number of bytes in the IPv4 contents/payload is less than IPv4.Length). - // This is also set automatically for packets captured off the wire if - // CaptureInfo.CaptureLength < CaptureInfo.Length. - Truncated bool -} - -// Packet is the primary object used by gopacket. Packets are created by a -// Decoder's Decode call. A packet is made up of a set of Data, which -// is broken into a number of Layers as it is decoded. -type Packet interface { - //// Functions for outputting the packet as a human-readable string: - //// ------------------------------------------------------------------ - // String returns a human-readable string representation of the packet. - // It uses LayerString on each layer to output the layer. - String() string - // Dump returns a verbose human-readable string representation of the packet, - // including a hex dump of all layers. It uses LayerDump on each layer to - // output the layer. - Dump() string - - //// Functions for accessing arbitrary packet layers: - //// ------------------------------------------------------------------ - // Layers returns all layers in this packet, computing them as necessary - Layers() []Layer - // Layer returns the first layer in this packet of the given type, or nil - Layer(LayerType) Layer - // LayerClass returns the first layer in this packet of the given class, - // or nil. - LayerClass(LayerClass) Layer - - //// Functions for accessing specific types of packet layers. These functions - //// return the first layer of each type found within the packet. - //// ------------------------------------------------------------------ - // LinkLayer returns the first link layer in the packet - LinkLayer() LinkLayer - // NetworkLayer returns the first network layer in the packet - NetworkLayer() NetworkLayer - // TransportLayer returns the first transport layer in the packet - TransportLayer() TransportLayer - // ApplicationLayer returns the first application layer in the packet - ApplicationLayer() ApplicationLayer - // ErrorLayer is particularly useful, since it returns nil if the packet - // was fully decoded successfully, and non-nil if an error was encountered - // in decoding and the packet was only partially decoded. Thus, its output - // can be used to determine if the entire packet was able to be decoded. - ErrorLayer() ErrorLayer - - //// Functions for accessing data specific to the packet: - //// ------------------------------------------------------------------ - // Data returns the set of bytes that make up this entire packet. - Data() []byte - // Metadata returns packet metadata associated with this packet. - Metadata() *PacketMetadata -} - -// packet contains all the information we need to fulfill the Packet interface, -// and its two "subclasses" (yes, no such thing in Go, bear with me), -// eagerPacket and lazyPacket, provide eager and lazy decoding logic around the -// various functions needed to access this information. -type packet struct { - // data contains the entire packet data for a packet - data []byte - // initialLayers is space for an initial set of layers already created inside - // the packet. - initialLayers [6]Layer - // layers contains each layer we've already decoded - layers []Layer - // last is the last layer added to the packet - last Layer - // metadata is the PacketMetadata for this packet - metadata PacketMetadata - - decodeOptions DecodeOptions - - // Pointers to the various important layers - link LinkLayer - network NetworkLayer - transport TransportLayer - application ApplicationLayer - failure ErrorLayer -} - -func (p *packet) SetTruncated() { - p.metadata.Truncated = true -} - -func (p *packet) SetLinkLayer(l LinkLayer) { - if p.link == nil { - p.link = l - } -} - -func (p *packet) SetNetworkLayer(l NetworkLayer) { - if p.network == nil { - p.network = l - } -} - -func (p *packet) SetTransportLayer(l TransportLayer) { - if p.transport == nil { - p.transport = l - } -} - -func (p *packet) SetApplicationLayer(l ApplicationLayer) { - if p.application == nil { - p.application = l - } -} - -func (p *packet) SetErrorLayer(l ErrorLayer) { - if p.failure == nil { - p.failure = l - } -} - -func (p *packet) AddLayer(l Layer) { - p.layers = append(p.layers, l) - p.last = l -} - -func (p *packet) DumpPacketData() { - fmt.Fprint(os.Stderr, p.packetDump()) - os.Stderr.Sync() -} - -func (p *packet) Metadata() *PacketMetadata { - return &p.metadata -} - -func (p *packet) Data() []byte { - return p.data -} - -func (p *packet) DecodeOptions() *DecodeOptions { - return &p.decodeOptions -} - -func (p *packet) addFinalDecodeError(err error, stack []byte) { - fail := &DecodeFailure{err: err, stack: stack} - if p.last == nil { - fail.data = p.data - } else { - fail.data = p.last.LayerPayload() - } - p.AddLayer(fail) - p.SetErrorLayer(fail) -} - -func (p *packet) recoverDecodeError() { - if !p.decodeOptions.SkipDecodeRecovery { - if r := recover(); r != nil { - p.addFinalDecodeError(fmt.Errorf("%v", r), debug.Stack()) - } - } -} - -// LayerString outputs an individual layer as a string. The layer is output -// in a single line, with no trailing newline. This function is specifically -// designed to do the right thing for most layers... it follows the following -// rules: -// * If the Layer has a String function, just output that. -// * Otherwise, output all exported fields in the layer, recursing into -// exported slices and structs. -// NOTE: This is NOT THE SAME AS fmt's "%#v". %#v will output both exported -// and unexported fields... many times packet layers contain unexported stuff -// that would just mess up the output of the layer, see for example the -// Payload layer and it's internal 'data' field, which contains a large byte -// array that would really mess up formatting. -func LayerString(l Layer) string { - return fmt.Sprintf("%v\t%s", l.LayerType(), layerString(reflect.ValueOf(l), false, false)) -} - -// Dumper dumps verbose information on a value. If a layer type implements -// Dumper, then its LayerDump() string will include the results in its output. -type Dumper interface { - Dump() string -} - -// LayerDump outputs a very verbose string representation of a layer. Its -// output is a concatenation of LayerString(l) and hex.Dump(l.LayerContents()). -// It contains newlines and ends with a newline. -func LayerDump(l Layer) string { - var b bytes.Buffer - b.WriteString(LayerString(l)) - b.WriteByte('\n') - if d, ok := l.(Dumper); ok { - dump := d.Dump() - if dump != "" { - b.WriteString(dump) - if dump[len(dump)-1] != '\n' { - b.WriteByte('\n') - } - } - } - b.WriteString(hex.Dump(l.LayerContents())) - return b.String() -} - -// layerString outputs, recursively, a layer in a "smart" way. See docs for -// LayerString for more details. -// -// Params: -// i - value to write out -// anonymous: if we're currently recursing an anonymous member of a struct -// writeSpace: if we've already written a value in a struct, and need to -// write a space before writing more. This happens when we write various -// anonymous values, and need to keep writing more. -func layerString(v reflect.Value, anonymous bool, writeSpace bool) string { - // Let String() functions take precedence. - if v.CanInterface() { - if s, ok := v.Interface().(fmt.Stringer); ok { - return s.String() - } - } - // Reflect, and spit out all the exported fields as key=value. - switch v.Type().Kind() { - case reflect.Interface, reflect.Ptr: - if v.IsNil() { - return "nil" - } - r := v.Elem() - return layerString(r, anonymous, writeSpace) - case reflect.Struct: - var b bytes.Buffer - typ := v.Type() - if !anonymous { - b.WriteByte('{') - } - for i := 0; i < v.NumField(); i++ { - // Check if this is upper-case. - ftype := typ.Field(i) - f := v.Field(i) - if ftype.Anonymous { - anonStr := layerString(f, true, writeSpace) - writeSpace = writeSpace || anonStr != "" - b.WriteString(anonStr) - } else if ftype.PkgPath == "" { // exported - if writeSpace { - b.WriteByte(' ') - } - writeSpace = true - fmt.Fprintf(&b, "%s=%s", typ.Field(i).Name, layerString(f, false, writeSpace)) - } - } - if !anonymous { - b.WriteByte('}') - } - return b.String() - case reflect.Slice: - var b bytes.Buffer - b.WriteByte('[') - if v.Len() > 4 { - fmt.Fprintf(&b, "..%d..", v.Len()) - } else { - for j := 0; j < v.Len(); j++ { - if j != 0 { - b.WriteString(", ") - } - b.WriteString(layerString(v.Index(j), false, false)) - } - } - b.WriteByte(']') - return b.String() - } - return fmt.Sprintf("%v", v.Interface()) -} - -const ( - longBytesLength = 128 -) - -// LongBytesGoString returns a string representation of the byte slice shortened -// using the format '{ ... ( bytes)}' if it -// exceeds a predetermined length. Can be used to avoid filling the display with -// very long byte strings. -func LongBytesGoString(buf []byte) string { - if len(buf) < longBytesLength { - return fmt.Sprintf("%#v", buf) - } - s := fmt.Sprintf("%#v", buf[:longBytesLength-1]) - s = strings.TrimSuffix(s, "}") - return fmt.Sprintf("%s ... (%d bytes)}", s, len(buf)) -} - -func baseLayerString(value reflect.Value) string { - t := value.Type() - content := value.Field(0) - c := make([]byte, content.Len()) - for i := range c { - c[i] = byte(content.Index(i).Uint()) - } - payload := value.Field(1) - p := make([]byte, payload.Len()) - for i := range p { - p[i] = byte(payload.Index(i).Uint()) - } - return fmt.Sprintf("%s{Contents:%s, Payload:%s}", t.String(), - LongBytesGoString(c), - LongBytesGoString(p)) -} - -func layerGoString(i interface{}, b *bytes.Buffer) { - if s, ok := i.(fmt.GoStringer); ok { - b.WriteString(s.GoString()) - return - } - - var v reflect.Value - var ok bool - if v, ok = i.(reflect.Value); !ok { - v = reflect.ValueOf(i) - } - switch v.Kind() { - case reflect.Ptr, reflect.Interface: - if v.Kind() == reflect.Ptr { - b.WriteByte('&') - } - layerGoString(v.Elem().Interface(), b) - case reflect.Struct: - t := v.Type() - b.WriteString(t.String()) - b.WriteByte('{') - for i := 0; i < v.NumField(); i++ { - if i > 0 { - b.WriteString(", ") - } - if t.Field(i).Name == "BaseLayer" { - fmt.Fprintf(b, "BaseLayer:%s", baseLayerString(v.Field(i))) - } else if v.Field(i).Kind() == reflect.Struct { - fmt.Fprintf(b, "%s:", t.Field(i).Name) - layerGoString(v.Field(i), b) - } else if v.Field(i).Kind() == reflect.Ptr { - b.WriteByte('&') - layerGoString(v.Field(i), b) - } else { - fmt.Fprintf(b, "%s:%#v", t.Field(i).Name, v.Field(i)) - } - } - b.WriteByte('}') - default: - fmt.Fprintf(b, "%#v", i) - } -} - -// LayerGoString returns a representation of the layer in Go syntax, -// taking care to shorten "very long" BaseLayer byte slices -func LayerGoString(l Layer) string { - b := new(bytes.Buffer) - layerGoString(l, b) - return b.String() -} - -func (p *packet) packetString() string { - var b bytes.Buffer - fmt.Fprintf(&b, "PACKET: %d bytes", len(p.Data())) - if p.metadata.Truncated { - b.WriteString(", truncated") - } - if p.metadata.Length > 0 { - fmt.Fprintf(&b, ", wire length %d cap length %d", p.metadata.Length, p.metadata.CaptureLength) - } - if !p.metadata.Timestamp.IsZero() { - fmt.Fprintf(&b, " @ %v", p.metadata.Timestamp) - } - b.WriteByte('\n') - for i, l := range p.layers { - fmt.Fprintf(&b, "- Layer %d (%02d bytes) = %s\n", i+1, len(l.LayerContents()), LayerString(l)) - } - return b.String() -} - -func (p *packet) packetDump() string { - var b bytes.Buffer - fmt.Fprintf(&b, "-- FULL PACKET DATA (%d bytes) ------------------------------------\n%s", len(p.data), hex.Dump(p.data)) - for i, l := range p.layers { - fmt.Fprintf(&b, "--- Layer %d ---\n%s", i+1, LayerDump(l)) - } - return b.String() -} - -// eagerPacket is a packet implementation that does eager decoding. Upon -// initial construction, it decodes all the layers it can from packet data. -// eagerPacket implements Packet and PacketBuilder. -type eagerPacket struct { - packet -} - -var errNilDecoder = errors.New("NextDecoder passed nil decoder, probably an unsupported decode type") - -func (p *eagerPacket) NextDecoder(next Decoder) error { - if next == nil { - return errNilDecoder - } - if p.last == nil { - return errors.New("NextDecoder called, but no layers added yet") - } - d := p.last.LayerPayload() - if len(d) == 0 { - return nil - } - // Since we're eager, immediately call the next decoder. - return next.Decode(d, p) -} -func (p *eagerPacket) initialDecode(dec Decoder) { - defer p.recoverDecodeError() - err := dec.Decode(p.data, p) - if err != nil { - p.addFinalDecodeError(err, nil) - } -} -func (p *eagerPacket) LinkLayer() LinkLayer { - return p.link -} -func (p *eagerPacket) NetworkLayer() NetworkLayer { - return p.network -} -func (p *eagerPacket) TransportLayer() TransportLayer { - return p.transport -} -func (p *eagerPacket) ApplicationLayer() ApplicationLayer { - return p.application -} -func (p *eagerPacket) ErrorLayer() ErrorLayer { - return p.failure -} -func (p *eagerPacket) Layers() []Layer { - return p.layers -} -func (p *eagerPacket) Layer(t LayerType) Layer { - for _, l := range p.layers { - if l.LayerType() == t { - return l - } - } - return nil -} -func (p *eagerPacket) LayerClass(lc LayerClass) Layer { - for _, l := range p.layers { - if lc.Contains(l.LayerType()) { - return l - } - } - return nil -} -func (p *eagerPacket) String() string { return p.packetString() } -func (p *eagerPacket) Dump() string { return p.packetDump() } - -// lazyPacket does lazy decoding on its packet data. On construction it does -// no initial decoding. For each function call, it decodes only as many layers -// as are necessary to compute the return value for that function. -// lazyPacket implements Packet and PacketBuilder. -type lazyPacket struct { - packet - next Decoder -} - -func (p *lazyPacket) NextDecoder(next Decoder) error { - if next == nil { - return errNilDecoder - } - p.next = next - return nil -} -func (p *lazyPacket) decodeNextLayer() { - if p.next == nil { - return - } - d := p.data - if p.last != nil { - d = p.last.LayerPayload() - } - next := p.next - p.next = nil - // We've just set p.next to nil, so if we see we have no data, this should be - // the final call we get to decodeNextLayer if we return here. - if len(d) == 0 { - return - } - defer p.recoverDecodeError() - err := next.Decode(d, p) - if err != nil { - p.addFinalDecodeError(err, nil) - } -} -func (p *lazyPacket) LinkLayer() LinkLayer { - for p.link == nil && p.next != nil { - p.decodeNextLayer() - } - return p.link -} -func (p *lazyPacket) NetworkLayer() NetworkLayer { - for p.network == nil && p.next != nil { - p.decodeNextLayer() - } - return p.network -} -func (p *lazyPacket) TransportLayer() TransportLayer { - for p.transport == nil && p.next != nil { - p.decodeNextLayer() - } - return p.transport -} -func (p *lazyPacket) ApplicationLayer() ApplicationLayer { - for p.application == nil && p.next != nil { - p.decodeNextLayer() - } - return p.application -} -func (p *lazyPacket) ErrorLayer() ErrorLayer { - for p.failure == nil && p.next != nil { - p.decodeNextLayer() - } - return p.failure -} -func (p *lazyPacket) Layers() []Layer { - for p.next != nil { - p.decodeNextLayer() - } - return p.layers -} -func (p *lazyPacket) Layer(t LayerType) Layer { - for _, l := range p.layers { - if l.LayerType() == t { - return l - } - } - numLayers := len(p.layers) - for p.next != nil { - p.decodeNextLayer() - for _, l := range p.layers[numLayers:] { - if l.LayerType() == t { - return l - } - } - numLayers = len(p.layers) - } - return nil -} -func (p *lazyPacket) LayerClass(lc LayerClass) Layer { - for _, l := range p.layers { - if lc.Contains(l.LayerType()) { - return l - } - } - numLayers := len(p.layers) - for p.next != nil { - p.decodeNextLayer() - for _, l := range p.layers[numLayers:] { - if lc.Contains(l.LayerType()) { - return l - } - } - numLayers = len(p.layers) - } - return nil -} -func (p *lazyPacket) String() string { p.Layers(); return p.packetString() } -func (p *lazyPacket) Dump() string { p.Layers(); return p.packetDump() } - -// DecodeOptions tells gopacket how to decode a packet. -type DecodeOptions struct { - // Lazy decoding decodes the minimum number of layers needed to return data - // for a packet at each function call. Be careful using this with concurrent - // packet processors, as each call to packet.* could mutate the packet, and - // two concurrent function calls could interact poorly. - Lazy bool - // NoCopy decoding doesn't copy its input buffer into storage that's owned by - // the packet. If you can guarantee that the bytes underlying the slice - // passed into NewPacket aren't going to be modified, this can be faster. If - // there's any chance that those bytes WILL be changed, this will invalidate - // your packets. - NoCopy bool - // SkipDecodeRecovery skips over panic recovery during packet decoding. - // Normally, when packets decode, if a panic occurs, that panic is captured - // by a recover(), and a DecodeFailure layer is added to the packet detailing - // the issue. If this flag is set, panics are instead allowed to continue up - // the stack. - SkipDecodeRecovery bool - // DecodeStreamsAsDatagrams enables routing of application-level layers in the TCP - // decoder. If true, we should try to decode layers after TCP in single packets. - // This is disabled by default because the reassembly package drives the decoding - // of TCP payload data after reassembly. - DecodeStreamsAsDatagrams bool -} - -// Default decoding provides the safest (but slowest) method for decoding -// packets. It eagerly processes all layers (so it's concurrency-safe) and it -// copies its input buffer upon creation of the packet (so the packet remains -// valid if the underlying slice is modified. Both of these take time, -// though, so beware. If you can guarantee that the packet will only be used -// by one goroutine at a time, set Lazy decoding. If you can guarantee that -// the underlying slice won't change, set NoCopy decoding. -var Default = DecodeOptions{} - -// Lazy is a DecodeOptions with just Lazy set. -var Lazy = DecodeOptions{Lazy: true} - -// NoCopy is a DecodeOptions with just NoCopy set. -var NoCopy = DecodeOptions{NoCopy: true} - -// DecodeStreamsAsDatagrams is a DecodeOptions with just DecodeStreamsAsDatagrams set. -var DecodeStreamsAsDatagrams = DecodeOptions{DecodeStreamsAsDatagrams: true} - -// NewPacket creates a new Packet object from a set of bytes. The -// firstLayerDecoder tells it how to interpret the first layer from the bytes, -// future layers will be generated from that first layer automatically. -func NewPacket(data []byte, firstLayerDecoder Decoder, options DecodeOptions) Packet { - if !options.NoCopy { - dataCopy := make([]byte, len(data)) - copy(dataCopy, data) - data = dataCopy - } - if options.Lazy { - p := &lazyPacket{ - packet: packet{data: data, decodeOptions: options}, - next: firstLayerDecoder, - } - p.layers = p.initialLayers[:0] - // Crazy craziness: - // If the following return statemet is REMOVED, and Lazy is FALSE, then - // eager packet processing becomes 17% FASTER. No, there is no logical - // explanation for this. However, it's such a hacky micro-optimization that - // we really can't rely on it. It appears to have to do with the size the - // compiler guesses for this function's stack space, since one symptom is - // that with the return statement in place, we more than double calls to - // runtime.morestack/runtime.lessstack. We'll hope the compiler gets better - // over time and we get this optimization for free. Until then, we'll have - // to live with slower packet processing. - return p - } - p := &eagerPacket{ - packet: packet{data: data, decodeOptions: options}, - } - p.layers = p.initialLayers[:0] - p.initialDecode(firstLayerDecoder) - return p -} - -// PacketDataSource is an interface for some source of packet data. Users may -// create their own implementations, or use the existing implementations in -// gopacket/pcap (libpcap, allows reading from live interfaces or from -// pcap files) or gopacket/pfring (PF_RING, allows reading from live -// interfaces). -type PacketDataSource interface { - // ReadPacketData returns the next packet available from this data source. - // It returns: - // data: The bytes of an individual packet. - // ci: Metadata about the capture - // err: An error encountered while reading packet data. If err != nil, - // then data/ci will be ignored. - ReadPacketData() (data []byte, ci CaptureInfo, err error) -} - -// ConcatFinitePacketDataSources returns a PacketDataSource that wraps a set -// of internal PacketDataSources, each of which will stop with io.EOF after -// reading a finite number of packets. The returned PacketDataSource will -// return all packets from the first finite source, followed by all packets from -// the second, etc. Once all finite sources have returned io.EOF, the returned -// source will as well. -func ConcatFinitePacketDataSources(pds ...PacketDataSource) PacketDataSource { - c := concat(pds) - return &c -} - -type concat []PacketDataSource - -func (c *concat) ReadPacketData() (data []byte, ci CaptureInfo, err error) { - for len(*c) > 0 { - data, ci, err = (*c)[0].ReadPacketData() - if err == io.EOF { - *c = (*c)[1:] - continue - } - return - } - return nil, CaptureInfo{}, io.EOF -} - -// ZeroCopyPacketDataSource is an interface to pull packet data from sources -// that allow data to be returned without copying to a user-controlled buffer. -// It's very similar to PacketDataSource, except that the caller must be more -// careful in how the returned buffer is handled. -type ZeroCopyPacketDataSource interface { - // ZeroCopyReadPacketData returns the next packet available from this data source. - // It returns: - // data: The bytes of an individual packet. Unlike with - // PacketDataSource's ReadPacketData, the slice returned here points - // to a buffer owned by the data source. In particular, the bytes in - // this buffer may be changed by future calls to - // ZeroCopyReadPacketData. Do not use the returned buffer after - // subsequent ZeroCopyReadPacketData calls. - // ci: Metadata about the capture - // err: An error encountered while reading packet data. If err != nil, - // then data/ci will be ignored. - ZeroCopyReadPacketData() (data []byte, ci CaptureInfo, err error) -} - -// PacketSource reads in packets from a PacketDataSource, decodes them, and -// returns them. -// -// There are currently two different methods for reading packets in through -// a PacketSource: -// -// Reading With Packets Function -// -// This method is the most convenient and easiest to code, but lacks -// flexibility. Packets returns a 'chan Packet', then asynchronously writes -// packets into that channel. Packets uses a blocking channel, and closes -// it if an io.EOF is returned by the underlying PacketDataSource. All other -// PacketDataSource errors are ignored and discarded. -// for packet := range packetSource.Packets() { -// ... -// } -// -// Reading With NextPacket Function -// -// This method is the most flexible, and exposes errors that may be -// encountered by the underlying PacketDataSource. It's also the fastest -// in a tight loop, since it doesn't have the overhead of a channel -// read/write. However, it requires the user to handle errors, most -// importantly the io.EOF error in cases where packets are being read from -// a file. -// for { -// packet, err := packetSource.NextPacket() -// if err == io.EOF { -// break -// } else if err != nil { -// log.Println("Error:", err) -// continue -// } -// handlePacket(packet) // Do something with each packet. -// } -type PacketSource struct { - source PacketDataSource - decoder Decoder - // DecodeOptions is the set of options to use for decoding each piece - // of packet data. This can/should be changed by the user to reflect the - // way packets should be decoded. - DecodeOptions - c chan Packet -} - -// NewPacketSource creates a packet data source. -func NewPacketSource(source PacketDataSource, decoder Decoder) *PacketSource { - return &PacketSource{ - source: source, - decoder: decoder, - } -} - -// NextPacket returns the next decoded packet from the PacketSource. On error, -// it returns a nil packet and a non-nil error. -func (p *PacketSource) NextPacket() (Packet, error) { - data, ci, err := p.source.ReadPacketData() - if err != nil { - return nil, err - } - packet := NewPacket(data, p.decoder, p.DecodeOptions) - m := packet.Metadata() - m.CaptureInfo = ci - m.Truncated = m.Truncated || ci.CaptureLength < ci.Length - return packet, nil -} - -// packetsToChannel reads in all packets from the packet source and sends them -// to the given channel. This routine terminates when a non-temporary error -// is returned by NextPacket(). -func (p *PacketSource) packetsToChannel() { - defer close(p.c) - for { - packet, err := p.NextPacket() - if err == nil { - p.c <- packet - continue - } - - // Immediately retry for temporary network errors - if nerr, ok := err.(net.Error); ok && nerr.Temporary() { - continue - } - - // Immediately retry for EAGAIN - if err == syscall.EAGAIN { - continue - } - - // Immediately break for known unrecoverable errors - if err == io.EOF || err == io.ErrUnexpectedEOF || - err == io.ErrNoProgress || err == io.ErrClosedPipe || err == io.ErrShortBuffer || - err == syscall.EBADF || - strings.Contains(err.Error(), "use of closed file") { - break - } - - // Sleep briefly and try again - time.Sleep(time.Millisecond * time.Duration(5)) - } -} - -// Packets returns a channel of packets, allowing easy iterating over -// packets. Packets will be asynchronously read in from the underlying -// PacketDataSource and written to the returned channel. If the underlying -// PacketDataSource returns an io.EOF error, the channel will be closed. -// If any other error is encountered, it is ignored. -// -// for packet := range packetSource.Packets() { -// handlePacket(packet) // Do something with each packet. -// } -// -// If called more than once, returns the same channel. -func (p *PacketSource) Packets() chan Packet { - if p.c == nil { - p.c = make(chan Packet, 1000) - go p.packetsToChannel() - } - return p.c -} diff --git a/vendor/github.com/google/gopacket/parser.go b/vendor/github.com/google/gopacket/parser.go deleted file mode 100644 index 4a4676f1cf..0000000000 --- a/vendor/github.com/google/gopacket/parser.go +++ /dev/null @@ -1,350 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package gopacket - -import ( - "fmt" -) - -// A container for single LayerType->DecodingLayer mapping. -type decodingLayerElem struct { - typ LayerType - dec DecodingLayer -} - -// DecodingLayer is an interface for packet layers that can decode themselves. -// -// The important part of DecodingLayer is that they decode themselves in-place. -// Calling DecodeFromBytes on a DecodingLayer totally resets the entire layer to -// the new state defined by the data passed in. A returned error leaves the -// DecodingLayer in an unknown intermediate state, thus its fields should not be -// trusted. -// -// Because the DecodingLayer is resetting its own fields, a call to -// DecodeFromBytes should normally not require any memory allocation. -type DecodingLayer interface { - // DecodeFromBytes resets the internal state of this layer to the state - // defined by the passed-in bytes. Slices in the DecodingLayer may - // reference the passed-in data, so care should be taken to copy it - // first should later modification of data be required before the - // DecodingLayer is discarded. - DecodeFromBytes(data []byte, df DecodeFeedback) error - // CanDecode returns the set of LayerTypes this DecodingLayer can - // decode. For Layers that are also DecodingLayers, this will most - // often be that Layer's LayerType(). - CanDecode() LayerClass - // NextLayerType returns the LayerType which should be used to decode - // the LayerPayload. - NextLayerType() LayerType - // LayerPayload is the set of bytes remaining to decode after a call to - // DecodeFromBytes. - LayerPayload() []byte -} - -// DecodingLayerFunc decodes given packet and stores decoded LayerType -// values into specified slice. Returns either first encountered -// unsupported LayerType value or decoding error. In case of success, -// returns (LayerTypeZero, nil). -type DecodingLayerFunc func([]byte, *[]LayerType) (LayerType, error) - -// DecodingLayerContainer stores all DecodingLayer-s and serves as a -// searching tool for DecodingLayerParser. -type DecodingLayerContainer interface { - // Put adds new DecodingLayer to container. The new instance of - // the same DecodingLayerContainer is returned so it may be - // implemented as a value receiver. - Put(DecodingLayer) DecodingLayerContainer - // Decoder returns DecodingLayer to decode given LayerType and - // true if it was found. If no decoder found, return false. - Decoder(LayerType) (DecodingLayer, bool) - // LayersDecoder returns DecodingLayerFunc which decodes given - // packet, starting with specified LayerType and DecodeFeedback. - LayersDecoder(first LayerType, df DecodeFeedback) DecodingLayerFunc -} - -// DecodingLayerSparse is a sparse array-based implementation of -// DecodingLayerContainer. Each DecodingLayer is addressed in an -// allocated slice by LayerType value itself. Though this is the -// fastest container it may be memory-consuming if used with big -// LayerType values. -type DecodingLayerSparse []DecodingLayer - -// Put implements DecodingLayerContainer interface. -func (dl DecodingLayerSparse) Put(d DecodingLayer) DecodingLayerContainer { - maxLayerType := LayerType(len(dl) - 1) - for _, typ := range d.CanDecode().LayerTypes() { - if typ > maxLayerType { - maxLayerType = typ - } - } - - if extra := maxLayerType - LayerType(len(dl)) + 1; extra > 0 { - dl = append(dl, make([]DecodingLayer, extra)...) - } - - for _, typ := range d.CanDecode().LayerTypes() { - dl[typ] = d - } - return dl -} - -// LayersDecoder implements DecodingLayerContainer interface. -func (dl DecodingLayerSparse) LayersDecoder(first LayerType, df DecodeFeedback) DecodingLayerFunc { - return LayersDecoder(dl, first, df) -} - -// Decoder implements DecodingLayerContainer interface. -func (dl DecodingLayerSparse) Decoder(typ LayerType) (DecodingLayer, bool) { - if int64(typ) < int64(len(dl)) { - decoder := dl[typ] - return decoder, decoder != nil - } - return nil, false -} - -// DecodingLayerArray is an array-based implementation of -// DecodingLayerContainer. Each DecodingLayer is searched linearly in -// an allocated slice in one-by-one fashion. -type DecodingLayerArray []decodingLayerElem - -// Put implements DecodingLayerContainer interface. -func (dl DecodingLayerArray) Put(d DecodingLayer) DecodingLayerContainer { -TYPES: - for _, typ := range d.CanDecode().LayerTypes() { - for i := range dl { - if dl[i].typ == typ { - dl[i].dec = d - continue TYPES - } - } - dl = append(dl, decodingLayerElem{typ, d}) - } - return dl -} - -// Decoder implements DecodingLayerContainer interface. -func (dl DecodingLayerArray) Decoder(typ LayerType) (DecodingLayer, bool) { - for i := range dl { - if dl[i].typ == typ { - return dl[i].dec, true - } - } - return nil, false -} - -// LayersDecoder implements DecodingLayerContainer interface. -func (dl DecodingLayerArray) LayersDecoder(first LayerType, df DecodeFeedback) DecodingLayerFunc { - return LayersDecoder(dl, first, df) -} - -// DecodingLayerMap is an map-based implementation of -// DecodingLayerContainer. Each DecodingLayer is searched in a map -// hashed by LayerType value. -type DecodingLayerMap map[LayerType]DecodingLayer - -// Put implements DecodingLayerContainer interface. -func (dl DecodingLayerMap) Put(d DecodingLayer) DecodingLayerContainer { - for _, typ := range d.CanDecode().LayerTypes() { - if dl == nil { - dl = make(map[LayerType]DecodingLayer) - } - dl[typ] = d - } - return dl -} - -// Decoder implements DecodingLayerContainer interface. -func (dl DecodingLayerMap) Decoder(typ LayerType) (DecodingLayer, bool) { - d, ok := dl[typ] - return d, ok -} - -// LayersDecoder implements DecodingLayerContainer interface. -func (dl DecodingLayerMap) LayersDecoder(first LayerType, df DecodeFeedback) DecodingLayerFunc { - return LayersDecoder(dl, first, df) -} - -// Static code check. -var ( - _ = []DecodingLayerContainer{ - DecodingLayerSparse(nil), - DecodingLayerMap(nil), - DecodingLayerArray(nil), - } -) - -// DecodingLayerParser parses a given set of layer types. See DecodeLayers for -// more information on how DecodingLayerParser should be used. -type DecodingLayerParser struct { - // DecodingLayerParserOptions is the set of options available to the - // user to define the parser's behavior. - DecodingLayerParserOptions - dlc DecodingLayerContainer - first LayerType - df DecodeFeedback - - decodeFunc DecodingLayerFunc - - // Truncated is set when a decode layer detects that the packet has been - // truncated. - Truncated bool -} - -// AddDecodingLayer adds a decoding layer to the parser. This adds support for -// the decoding layer's CanDecode layers to the parser... should they be -// encountered, they'll be parsed. -func (l *DecodingLayerParser) AddDecodingLayer(d DecodingLayer) { - l.SetDecodingLayerContainer(l.dlc.Put(d)) -} - -// SetTruncated is used by DecodingLayers to set the Truncated boolean in the -// DecodingLayerParser. Users should simply read Truncated after calling -// DecodeLayers. -func (l *DecodingLayerParser) SetTruncated() { - l.Truncated = true -} - -// NewDecodingLayerParser creates a new DecodingLayerParser and adds in all -// of the given DecodingLayers with AddDecodingLayer. -// -// Each call to DecodeLayers will attempt to decode the given bytes first by -// treating them as a 'first'-type layer, then by using NextLayerType on -// subsequently decoded layers to find the next relevant decoder. Should a -// deoder not be available for the layer type returned by NextLayerType, -// decoding will stop. -// -// NewDecodingLayerParser uses DecodingLayerMap container by -// default. -func NewDecodingLayerParser(first LayerType, decoders ...DecodingLayer) *DecodingLayerParser { - dlp := &DecodingLayerParser{first: first} - dlp.df = dlp // Cast this once to the interface - // default container - dlc := DecodingLayerContainer(DecodingLayerMap(make(map[LayerType]DecodingLayer))) - for _, d := range decoders { - dlc = dlc.Put(d) - } - - dlp.SetDecodingLayerContainer(dlc) - return dlp -} - -// SetDecodingLayerContainer specifies container with decoders. This -// call replaces all decoders already registered in given instance of -// DecodingLayerParser. -func (l *DecodingLayerParser) SetDecodingLayerContainer(dlc DecodingLayerContainer) { - l.dlc = dlc - l.decodeFunc = l.dlc.LayersDecoder(l.first, l.df) -} - -// DecodeLayers decodes as many layers as possible from the given data. It -// initially treats the data as layer type 'typ', then uses NextLayerType on -// each subsequent decoded layer until it gets to a layer type it doesn't know -// how to parse. -// -// For each layer successfully decoded, DecodeLayers appends the layer type to -// the decoded slice. DecodeLayers truncates the 'decoded' slice initially, so -// there's no need to empty it yourself. -// -// This decoding method is about an order of magnitude faster than packet -// decoding, because it only decodes known layers that have already been -// allocated. This means it doesn't need to allocate each layer it returns... -// instead it overwrites the layers that already exist. -// -// Example usage: -// func main() { -// var eth layers.Ethernet -// var ip4 layers.IPv4 -// var ip6 layers.IPv6 -// var tcp layers.TCP -// var udp layers.UDP -// var payload gopacket.Payload -// parser := gopacket.NewDecodingLayerParser(layers.LayerTypeEthernet, ð, &ip4, &ip6, &tcp, &udp, &payload) -// var source gopacket.PacketDataSource = getMyDataSource() -// decodedLayers := make([]gopacket.LayerType, 0, 10) -// for { -// data, _, err := source.ReadPacketData() -// if err != nil { -// fmt.Println("Error reading packet data: ", err) -// continue -// } -// fmt.Println("Decoding packet") -// err = parser.DecodeLayers(data, &decodedLayers) -// for _, typ := range decodedLayers { -// fmt.Println(" Successfully decoded layer type", typ) -// switch typ { -// case layers.LayerTypeEthernet: -// fmt.Println(" Eth ", eth.SrcMAC, eth.DstMAC) -// case layers.LayerTypeIPv4: -// fmt.Println(" IP4 ", ip4.SrcIP, ip4.DstIP) -// case layers.LayerTypeIPv6: -// fmt.Println(" IP6 ", ip6.SrcIP, ip6.DstIP) -// case layers.LayerTypeTCP: -// fmt.Println(" TCP ", tcp.SrcPort, tcp.DstPort) -// case layers.LayerTypeUDP: -// fmt.Println(" UDP ", udp.SrcPort, udp.DstPort) -// } -// } -// if decodedLayers.Truncated { -// fmt.Println(" Packet has been truncated") -// } -// if err != nil { -// fmt.Println(" Error encountered:", err) -// } -// } -// } -// -// If DecodeLayers is unable to decode the next layer type, it will return the -// error UnsupportedLayerType. -func (l *DecodingLayerParser) DecodeLayers(data []byte, decoded *[]LayerType) (err error) { - l.Truncated = false - if !l.IgnorePanic { - defer panicToError(&err) - } - typ, err := l.decodeFunc(data, decoded) - if typ != LayerTypeZero { - // no decoder - if l.IgnoreUnsupported { - return nil - } - return UnsupportedLayerType(typ) - } - return err -} - -// UnsupportedLayerType is returned by DecodingLayerParser if DecodeLayers -// encounters a layer type that the DecodingLayerParser has no decoder for. -type UnsupportedLayerType LayerType - -// Error implements the error interface, returning a string to say that the -// given layer type is unsupported. -func (e UnsupportedLayerType) Error() string { - return fmt.Sprintf("No decoder for layer type %v", LayerType(e)) -} - -func panicToError(e *error) { - if r := recover(); r != nil { - *e = fmt.Errorf("panic: %v", r) - } -} - -// DecodingLayerParserOptions provides options to affect the behavior of a given -// DecodingLayerParser. -type DecodingLayerParserOptions struct { - // IgnorePanic determines whether a DecodingLayerParser should stop - // panics on its own (by returning them as an error from DecodeLayers) - // or should allow them to raise up the stack. Handling errors does add - // latency to the process of decoding layers, but is much safer for - // callers. IgnorePanic defaults to false, thus if the caller does - // nothing decode panics will be returned as errors. - IgnorePanic bool - // IgnoreUnsupported will stop parsing and return a nil error when it - // encounters a layer it doesn't have a parser for, instead of returning an - // UnsupportedLayerType error. If this is true, it's up to the caller to make - // sure that all expected layers have been parsed (by checking the decoded - // slice). - IgnoreUnsupported bool -} diff --git a/vendor/github.com/google/gopacket/time.go b/vendor/github.com/google/gopacket/time.go deleted file mode 100644 index 6d116cdfbc..0000000000 --- a/vendor/github.com/google/gopacket/time.go +++ /dev/null @@ -1,72 +0,0 @@ -// Copyright 2018 The GoPacket Authors. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package gopacket - -import ( - "fmt" - "math" - "time" -) - -// TimestampResolution represents the resolution of timestamps in Base^Exponent. -type TimestampResolution struct { - Base, Exponent int -} - -func (t TimestampResolution) String() string { - return fmt.Sprintf("%d^%d", t.Base, t.Exponent) -} - -// ToDuration returns the smallest representable time difference as a time.Duration -func (t TimestampResolution) ToDuration() time.Duration { - if t.Base == 0 { - return 0 - } - if t.Exponent == 0 { - return time.Second - } - switch t.Base { - case 10: - return time.Duration(math.Pow10(t.Exponent + 9)) - case 2: - if t.Exponent < 0 { - return time.Second >> uint(-t.Exponent) - } - return time.Second << uint(t.Exponent) - default: - // this might loose precision - return time.Duration(float64(time.Second) * math.Pow(float64(t.Base), float64(t.Exponent))) - } -} - -// TimestampResolutionInvalid represents an invalid timestamp resolution -var TimestampResolutionInvalid = TimestampResolution{} - -// TimestampResolutionMillisecond is a resolution of 10^-3s -var TimestampResolutionMillisecond = TimestampResolution{10, -3} - -// TimestampResolutionMicrosecond is a resolution of 10^-6s -var TimestampResolutionMicrosecond = TimestampResolution{10, -6} - -// TimestampResolutionNanosecond is a resolution of 10^-9s -var TimestampResolutionNanosecond = TimestampResolution{10, -9} - -// TimestampResolutionNTP is the resolution of NTP timestamps which is 2^-32 ≈ 233 picoseconds -var TimestampResolutionNTP = TimestampResolution{2, -32} - -// TimestampResolutionCaptureInfo is the resolution used in CaptureInfo, which his currently nanosecond -var TimestampResolutionCaptureInfo = TimestampResolutionNanosecond - -// PacketSourceResolution is an interface for packet data sources that -// support reporting the timestamp resolution of the aqcuired timestamps. -// Returned timestamps will always have NanosecondTimestampResolution due -// to the use of time.Time, but scaling might have occured if acquired -// timestamps have a different resolution. -type PacketSourceResolution interface { - // Resolution returns the timestamp resolution of acquired timestamps before scaling to NanosecondTimestampResolution. - Resolution() TimestampResolution -} diff --git a/vendor/github.com/google/gopacket/writer.go b/vendor/github.com/google/gopacket/writer.go deleted file mode 100644 index 5d303dc4a7..0000000000 --- a/vendor/github.com/google/gopacket/writer.go +++ /dev/null @@ -1,232 +0,0 @@ -// Copyright 2012 Google, Inc. All rights reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the LICENSE file in the root of the source -// tree. - -package gopacket - -import ( - "fmt" -) - -// SerializableLayer allows its implementations to be written out as a set of bytes, -// so those bytes may be sent on the wire or otherwise used by the caller. -// SerializableLayer is implemented by certain Layer types, and can be encoded to -// bytes using the LayerWriter object. -type SerializableLayer interface { - // SerializeTo writes this layer to a slice, growing that slice if necessary - // to make it fit the layer's data. - // Args: - // b: SerializeBuffer to write this layer on to. When called, b.Bytes() - // is the payload this layer should wrap, if any. Note that this - // layer can either prepend itself (common), append itself - // (uncommon), or both (sometimes padding or footers are required at - // the end of packet data). It's also possible (though probably very - // rarely needed) to overwrite any bytes in the current payload. - // After this call, b.Bytes() should return the byte encoding of - // this layer wrapping the original b.Bytes() payload. - // opts: options to use while writing out data. - // Returns: - // error if a problem was encountered during encoding. If an error is - // returned, the bytes in data should be considered invalidated, and - // not used. - // - // SerializeTo calls SHOULD entirely ignore LayerContents and - // LayerPayload. It just serializes based on struct fields, neither - // modifying nor using contents/payload. - SerializeTo(b SerializeBuffer, opts SerializeOptions) error - // LayerType returns the type of the layer that is being serialized to the buffer - LayerType() LayerType -} - -// SerializeOptions provides options for behaviors that SerializableLayers may want to -// implement. -type SerializeOptions struct { - // FixLengths determines whether, during serialization, layers should fix - // the values for any length field that depends on the payload. - FixLengths bool - // ComputeChecksums determines whether, during serialization, layers - // should recompute checksums based on their payloads. - ComputeChecksums bool -} - -// SerializeBuffer is a helper used by gopacket for writing out packet layers. -// SerializeBuffer starts off as an empty []byte. Subsequent calls to PrependBytes -// return byte slices before the current Bytes(), AppendBytes returns byte -// slices after. -// -// Byte slices returned by PrependBytes/AppendBytes are NOT zero'd out, so if -// you want to make sure they're all zeros, set them as such. -// -// SerializeBuffer is specifically designed to handle packet writing, where unlike -// with normal writes it's easier to start writing at the inner-most layer and -// work out, meaning that we often need to prepend bytes. This runs counter to -// typical writes to byte slices using append(), where we only write at the end -// of the buffer. -// -// It can be reused via Clear. Note, however, that a Clear call will invalidate the -// byte slices returned by any previous Bytes() call (the same buffer is -// reused). -// -// 1) Reusing a write buffer is generally much faster than creating a new one, -// and with the default implementation it avoids additional memory allocations. -// 2) If a byte slice from a previous Bytes() call will continue to be used, -// it's better to create a new SerializeBuffer. -// -// The Clear method is specifically designed to minimize memory allocations for -// similar later workloads on the SerializeBuffer. IE: if you make a set of -// Prepend/Append calls, then clear, then make the same calls with the same -// sizes, the second round (and all future similar rounds) shouldn't allocate -// any new memory. -type SerializeBuffer interface { - // Bytes returns the contiguous set of bytes collected so far by Prepend/Append - // calls. The slice returned by Bytes will be modified by future Clear calls, - // so if you're planning on clearing this SerializeBuffer, you may want to copy - // Bytes somewhere safe first. - Bytes() []byte - // PrependBytes returns a set of bytes which prepends the current bytes in this - // buffer. These bytes start in an indeterminate state, so they should be - // overwritten by the caller. The caller must only call PrependBytes if they - // know they're going to immediately overwrite all bytes returned. - PrependBytes(num int) ([]byte, error) - // AppendBytes returns a set of bytes which appends the current bytes in this - // buffer. These bytes start in an indeterminate state, so they should be - // overwritten by the caller. The caller must only call AppendBytes if they - // know they're going to immediately overwrite all bytes returned. - AppendBytes(num int) ([]byte, error) - // Clear resets the SerializeBuffer to a new, empty buffer. After a call to clear, - // the byte slice returned by any previous call to Bytes() for this buffer - // should be considered invalidated. - Clear() error - // Layers returns all the Layers that have been successfully serialized into this buffer - // already. - Layers() []LayerType - // PushLayer adds the current Layer to the list of Layers that have been serialized - // into this buffer. - PushLayer(LayerType) -} - -type serializeBuffer struct { - data []byte - start int - prepended, appended int - layers []LayerType -} - -// NewSerializeBuffer creates a new instance of the default implementation of -// the SerializeBuffer interface. -func NewSerializeBuffer() SerializeBuffer { - return &serializeBuffer{} -} - -// NewSerializeBufferExpectedSize creates a new buffer for serialization, optimized for an -// expected number of bytes prepended/appended. This tends to decrease the -// number of memory allocations made by the buffer during writes. -func NewSerializeBufferExpectedSize(expectedPrependLength, expectedAppendLength int) SerializeBuffer { - return &serializeBuffer{ - data: make([]byte, expectedPrependLength, expectedPrependLength+expectedAppendLength), - start: expectedPrependLength, - prepended: expectedPrependLength, - appended: expectedAppendLength, - } -} - -func (w *serializeBuffer) Bytes() []byte { - return w.data[w.start:] -} - -func (w *serializeBuffer) PrependBytes(num int) ([]byte, error) { - if num < 0 { - panic("num < 0") - } - if w.start < num { - toPrepend := w.prepended - if toPrepend < num { - toPrepend = num - } - w.prepended += toPrepend - length := cap(w.data) + toPrepend - newData := make([]byte, length) - newStart := w.start + toPrepend - copy(newData[newStart:], w.data[w.start:]) - w.start = newStart - w.data = newData[:toPrepend+len(w.data)] - } - w.start -= num - return w.data[w.start : w.start+num], nil -} - -func (w *serializeBuffer) AppendBytes(num int) ([]byte, error) { - if num < 0 { - panic("num < 0") - } - initialLength := len(w.data) - if cap(w.data)-initialLength < num { - toAppend := w.appended - if toAppend < num { - toAppend = num - } - w.appended += toAppend - newData := make([]byte, cap(w.data)+toAppend) - copy(newData[w.start:], w.data[w.start:]) - w.data = newData[:initialLength] - } - // Grow the buffer. We know it'll be under capacity given above. - w.data = w.data[:initialLength+num] - return w.data[initialLength:], nil -} - -func (w *serializeBuffer) Clear() error { - w.start = w.prepended - w.data = w.data[:w.start] - w.layers = w.layers[:0] - return nil -} - -func (w *serializeBuffer) Layers() []LayerType { - return w.layers -} - -func (w *serializeBuffer) PushLayer(l LayerType) { - w.layers = append(w.layers, l) -} - -// SerializeLayers clears the given write buffer, then writes all layers into it so -// they correctly wrap each other. Note that by clearing the buffer, it -// invalidates all slices previously returned by w.Bytes() -// -// Example: -// buf := gopacket.NewSerializeBuffer() -// opts := gopacket.SerializeOptions{} -// gopacket.SerializeLayers(buf, opts, a, b, c) -// firstPayload := buf.Bytes() // contains byte representation of a(b(c)) -// gopacket.SerializeLayers(buf, opts, d, e, f) -// secondPayload := buf.Bytes() // contains byte representation of d(e(f)). firstPayload is now invalidated, since the SerializeLayers call Clears buf. -func SerializeLayers(w SerializeBuffer, opts SerializeOptions, layers ...SerializableLayer) error { - w.Clear() - for i := len(layers) - 1; i >= 0; i-- { - layer := layers[i] - err := layer.SerializeTo(w, opts) - if err != nil { - return err - } - w.PushLayer(layer.LayerType()) - } - return nil -} - -// SerializePacket is a convenience function that calls SerializeLayers -// on packet's Layers(). -// It returns an error if one of the packet layers is not a SerializableLayer. -func SerializePacket(buf SerializeBuffer, opts SerializeOptions, packet Packet) error { - sls := []SerializableLayer{} - for _, layer := range packet.Layers() { - sl, ok := layer.(SerializableLayer) - if !ok { - return fmt.Errorf("layer %s is not serializable", layer.LayerType().String()) - } - sls = append(sls, sl) - } - return SerializeLayers(buf, opts, sls...) -} diff --git a/vendor/github.com/inetaf/tcpproxy/.travis.yml b/vendor/github.com/inetaf/tcpproxy/.travis.yml deleted file mode 100644 index a8d3a50dfe..0000000000 --- a/vendor/github.com/inetaf/tcpproxy/.travis.yml +++ /dev/null @@ -1,45 +0,0 @@ -language: go -go: -- "1.16.x" -- "1.17.x" -- tip -os: -- linux -script: -- go build ./... -- go test ./... -- go vet ./... - -jobs: - include: - - stage: deploy - go: "1.16" - install: - - gem install fpm - script: - - go build ./cmd/tlsrouter - - fpm -s dir -t deb -n tlsrouter -v $(date '+%Y%m%d%H%M%S') - --license Apache2 - --vendor "David Anderson " - --maintainer "David Anderson " - --description "TLS SNI router" - --url "https://github.com/inetaf/tcpproxy/tree/master/cmd/tlsrouter" - ./tlsrouter=/usr/bin/tlsrouter - ./systemd/tlsrouter.service=/lib/systemd/system/tlsrouter.service - deploy: - - provider: packagecloud - repository: tlsrouter - username: danderson - dist: debian/stretch - skip_cleanup: true - on: - branch: master - token: - secure: 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 - - provider: script - on: - branch: master - script: go run scripts/prune_old_versions.go -user=danderson -repo=tlsrouter -distro=debian -version=stretch -package=tlsrouter -arch=amd64 -limit=2 - env: - # Packagecloud API key, for prune_old_versions.go - - secure: "SRcNwt+45QyPS1w9aGxMg9905Y6d9w4mBM29G6iTTnUB5nD7cAk4m+tf834knGSobVXlWcRnTDW8zrHdQ9yX22dPqCpH5qE+qzTmIvxRHrVJRMmPeYvligJ/9jYfHgQbvuRT8cUpIcpCQAla6rw8nXfKTOE3h8XqMP2hdc3DTVOu2HCfKCNco1tJ7is+AIAnFV2Wpsbb3ZsdKFvHvi2RKUfFaX61J1GNt2/XJIlZs8jC6Y1IAC+ftjql9UsAE/WjZ9fL0Ww1b9/LBIIGHXWI3HpVv9WvlhhIxIlJgOVjmU2lbSuj2w/EBDJ9cd1Qe+wJkT3yKzE1NRsNScVjGg+Ku5igJu/XXuaHkIX01+15BqgPduBYRL0atiNQDhqgBiSyVhXZBX9vsgsp0bgpKaBSF++CV18Q9dara8aljqqS33M3imO3I8JmXU10944QA9Wvu7pCYuIzXxhINcDXRvqxBqz5LnFJGwnGqngTrOCSVS2xn7Y+sjmhe1n5cPCEISlozfa9mPYPvMPp8zg3TbATOOM8CVfcpaNscLqa/+SExN3zMwSanjNKrBgoaQcBzGW5mIgSPxhXkWikBgapiEN7+2Y032Lhqdb9dYjH+EuwcnofspDjjMabWxnuJaln+E3/9vZi2ooQrBEtvymUTy4VMSnqwIX5bU7nPdIuQycdWhk=" diff --git a/vendor/github.com/inetaf/tcpproxy/CONTRIBUTING.md b/vendor/github.com/inetaf/tcpproxy/CONTRIBUTING.md deleted file mode 100644 index 188ad870fc..0000000000 --- a/vendor/github.com/inetaf/tcpproxy/CONTRIBUTING.md +++ /dev/null @@ -1,8 +0,0 @@ -Contributions are welcome by pull request. - -You need to sign the Google Contributor License Agreement before your -contributions can be accepted. You can find the individual and organization -level CLAs here: - -Individual: https://cla.developers.google.com/about/google-individual -Organization: https://cla.developers.google.com/about/google-corporate diff --git a/vendor/github.com/inetaf/tcpproxy/LICENSE b/vendor/github.com/inetaf/tcpproxy/LICENSE deleted file mode 100644 index d645695673..0000000000 --- a/vendor/github.com/inetaf/tcpproxy/LICENSE +++ /dev/null @@ -1,202 +0,0 @@ - - Apache License - Version 2.0, January 2004 - http://www.apache.org/licenses/ - - TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION - - 1. Definitions. - - "License" shall mean the terms and conditions for use, reproduction, - and distribution as defined by Sections 1 through 9 of this document. - - "Licensor" shall mean the copyright owner or entity authorized by - the copyright owner that is granting the License. - - "Legal Entity" shall mean the union of the acting entity and all - other entities that control, are controlled by, or are under common - control with that entity. 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However, in accepting such obligations, You may act only - on Your own behalf and on Your sole responsibility, not on behalf - of any other Contributor, and only if You agree to indemnify, - defend, and hold each Contributor harmless for any liability - incurred by, or claims asserted against, such Contributor by reason - of your accepting any such warranty or additional liability. - - END OF TERMS AND CONDITIONS - - APPENDIX: How to apply the Apache License to your work. - - To apply the Apache License to your work, attach the following - boilerplate notice, with the fields enclosed by brackets "[]" - replaced with your own identifying information. (Don't include - the brackets!) The text should be enclosed in the appropriate - comment syntax for the file format. We also recommend that a - file or class name and description of purpose be included on the - same "printed page" as the copyright notice for easier - identification within third-party archives. - - Copyright [yyyy] [name of copyright owner] - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. diff --git a/vendor/github.com/inetaf/tcpproxy/README.md b/vendor/github.com/inetaf/tcpproxy/README.md deleted file mode 100644 index 8181ceb910..0000000000 --- a/vendor/github.com/inetaf/tcpproxy/README.md +++ /dev/null @@ -1,5 +0,0 @@ -# tcpproxy - -For library usage, see https://pkg.go.dev/github.com/inetaf/tcpproxy/ - -For CLI usage, see https://github.com/inetaf/tcpproxy/blob/master/cmd/tlsrouter/README.md diff --git a/vendor/github.com/inetaf/tcpproxy/http.go b/vendor/github.com/inetaf/tcpproxy/http.go deleted file mode 100644 index d28c66fa88..0000000000 --- a/vendor/github.com/inetaf/tcpproxy/http.go +++ /dev/null @@ -1,125 +0,0 @@ -// Copyright 2017 Google Inc. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcpproxy - -import ( - "bufio" - "bytes" - "context" - "net/http" -) - -// AddHTTPHostRoute appends a route to the ipPort listener that -// routes to dest if the incoming HTTP/1.x Host header name is -// httpHost. If it doesn't match, rule processing continues for any -// additional routes on ipPort. -// -// The ipPort is any valid net.Listen TCP address. -func (p *Proxy) AddHTTPHostRoute(ipPort, httpHost string, dest Target) { - p.AddHTTPHostMatchRoute(ipPort, equals(httpHost), dest) -} - -// AddHTTPHostMatchRoute appends a route to the ipPort listener that -// routes to dest if the incoming HTTP/1.x Host header name is -// accepted by matcher. If it doesn't match, rule processing continues -// for any additional routes on ipPort. -// -// The ipPort is any valid net.Listen TCP address. -func (p *Proxy) AddHTTPHostMatchRoute(ipPort string, match Matcher, dest Target) { - p.addRoute(ipPort, httpHostMatch{match, dest}) -} - -type httpHostMatch struct { - matcher Matcher - target Target -} - -func (m httpHostMatch) match(br *bufio.Reader) (Target, string) { - hh := httpHostHeader(br) - if m.matcher(context.TODO(), hh) { - return m.target, hh - } - return nil, "" -} - -// httpHostHeader returns the HTTP Host header from br without -// consuming any of its bytes. It returns "" if it can't find one. -func httpHostHeader(br *bufio.Reader) string { - const maxPeek = 4 << 10 - peekSize := 0 - for { - peekSize++ - if peekSize > maxPeek { - b, _ := br.Peek(br.Buffered()) - return httpHostHeaderFromBytes(b) - } - b, err := br.Peek(peekSize) - if n := br.Buffered(); n > peekSize { - b, _ = br.Peek(n) - peekSize = n - } - if len(b) > 0 { - if b[0] < 'A' || b[0] > 'Z' { - // Doesn't look like an HTTP verb - // (GET, POST, etc). - return "" - } - if bytes.Index(b, crlfcrlf) != -1 || bytes.Index(b, lflf) != -1 { - req, err := http.ReadRequest(bufio.NewReader(bytes.NewReader(b))) - if err != nil { - return "" - } - if len(req.Header["Host"]) > 1 { - // TODO(bradfitz): what does - // ReadRequest do if there are - // multiple Host headers? - return "" - } - return req.Host - } - } - if err != nil { - return httpHostHeaderFromBytes(b) - } - } -} - -var ( - lfHostColon = []byte("\nHost:") - lfhostColon = []byte("\nhost:") - crlf = []byte("\r\n") - lf = []byte("\n") - crlfcrlf = []byte("\r\n\r\n") - lflf = []byte("\n\n") -) - -func httpHostHeaderFromBytes(b []byte) string { - if i := bytes.Index(b, lfHostColon); i != -1 { - return string(bytes.TrimSpace(untilEOL(b[i+len(lfHostColon):]))) - } - if i := bytes.Index(b, lfhostColon); i != -1 { - return string(bytes.TrimSpace(untilEOL(b[i+len(lfhostColon):]))) - } - return "" -} - -// untilEOL returns v, truncated before the first '\n' byte, if any. -// The returned slice may include a '\r' at the end. -func untilEOL(v []byte) []byte { - if i := bytes.IndexByte(v, '\n'); i != -1 { - return v[:i] - } - return v -} diff --git a/vendor/github.com/inetaf/tcpproxy/listener.go b/vendor/github.com/inetaf/tcpproxy/listener.go deleted file mode 100644 index 1ddc48ee21..0000000000 --- a/vendor/github.com/inetaf/tcpproxy/listener.go +++ /dev/null @@ -1,108 +0,0 @@ -// Copyright 2017 Google Inc. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcpproxy - -import ( - "io" - "net" - "sync" -) - -// TargetListener implements both net.Listener and Target. -// Matched Targets become accepted connections. -type TargetListener struct { - Address string // Address is the string reported by TargetListener.Addr().String(). - - mu sync.Mutex - cond *sync.Cond - closed bool - nextConn net.Conn -} - -var ( - _ net.Listener = (*TargetListener)(nil) - _ Target = (*TargetListener)(nil) -) - -func (tl *TargetListener) lock() { - tl.mu.Lock() - if tl.cond == nil { - tl.cond = sync.NewCond(&tl.mu) - } -} - -type tcpAddr string - -func (a tcpAddr) Network() string { return "tcp" } -func (a tcpAddr) String() string { return string(a) } - -// Addr returns the listener's Address field as a net.Addr. -func (tl *TargetListener) Addr() net.Addr { return tcpAddr(tl.Address) } - -// Close stops listening for new connections. All new connections -// routed to this listener will be closed. Already accepted -// connections are not closed. -func (tl *TargetListener) Close() error { - tl.lock() - if tl.closed { - tl.mu.Unlock() - return nil - } - tl.closed = true - tl.mu.Unlock() - tl.cond.Broadcast() - return nil -} - -// HandleConn implements the Target interface. It blocks until tl is -// closed or another goroutine has called Accept and received c. -func (tl *TargetListener) HandleConn(c net.Conn) { - tl.lock() - defer tl.mu.Unlock() - for tl.nextConn != nil && !tl.closed { - tl.cond.Wait() - } - if tl.closed { - c.Close() - return - } - tl.nextConn = c - tl.cond.Broadcast() // Signal might be sufficient; verify. - for tl.nextConn == c && !tl.closed { - tl.cond.Wait() - } - if tl.closed { - c.Close() - return - } -} - -// Accept implements the Accept method in the net.Listener interface. -func (tl *TargetListener) Accept() (net.Conn, error) { - tl.lock() - for tl.nextConn == nil && !tl.closed { - tl.cond.Wait() - } - if tl.closed { - tl.mu.Unlock() - return nil, io.EOF - } - c := tl.nextConn - tl.nextConn = nil - tl.mu.Unlock() - tl.cond.Broadcast() // Signal might be sufficient; verify. - - return c, nil -} diff --git a/vendor/github.com/inetaf/tcpproxy/sni.go b/vendor/github.com/inetaf/tcpproxy/sni.go deleted file mode 100644 index c2d37e01ed..0000000000 --- a/vendor/github.com/inetaf/tcpproxy/sni.go +++ /dev/null @@ -1,115 +0,0 @@ -// Copyright 2017 Google Inc. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcpproxy - -import ( - "bufio" - "bytes" - "context" - "crypto/tls" - "io" - "net" -) - -// AddSNIRoute appends a route to the ipPort listener that routes to -// dest if the incoming TLS SNI server name is sni. If it doesn't -// match, rule processing continues for any additional routes on -// ipPort. -// -// The ipPort is any valid net.Listen TCP address. -func (p *Proxy) AddSNIRoute(ipPort, sni string, dest Target) { - p.AddSNIMatchRoute(ipPort, equals(sni), dest) -} - -// AddSNIMatchRoute appends a route to the ipPort listener that routes -// to dest if the incoming TLS SNI server name is accepted by -// matcher. If it doesn't match, rule processing continues for any -// additional routes on ipPort. -// -// The ipPort is any valid net.Listen TCP address. -func (p *Proxy) AddSNIMatchRoute(ipPort string, matcher Matcher, dest Target) { - p.addRoute(ipPort, sniMatch{matcher: matcher, target: dest}) -} - -// SNITargetFunc is the func callback used by Proxy.AddSNIRouteFunc. -type SNITargetFunc func(ctx context.Context, sniName string) (t Target, ok bool) - -// AddSNIRouteFunc adds a route to ipPort that matches an SNI request and calls -// fn to map its nap to a target. -func (p *Proxy) AddSNIRouteFunc(ipPort string, fn SNITargetFunc) { - p.addRoute(ipPort, sniMatch{targetFunc: fn}) -} - -type sniMatch struct { - matcher Matcher - target Target - - // Alternatively, if targetFunc is non-nil, it's used instead: - targetFunc SNITargetFunc -} - -func (m sniMatch) match(br *bufio.Reader) (Target, string) { - sni := clientHelloServerName(br) - if sni == "" { - return nil, "" - } - if m.targetFunc != nil { - if t, ok := m.targetFunc(context.TODO(), sni); ok { - return t, sni - } - return nil, "" - } - if m.matcher(context.TODO(), sni) { - return m.target, sni - } - return nil, "" -} - -// clientHelloServerName returns the SNI server name inside the TLS ClientHello, -// without consuming any bytes from br. -// On any error, the empty string is returned. -func clientHelloServerName(br *bufio.Reader) (sni string) { - const recordHeaderLen = 5 - hdr, err := br.Peek(recordHeaderLen) - if err != nil { - return "" - } - const recordTypeHandshake = 0x16 - if hdr[0] != recordTypeHandshake { - return "" // Not TLS. - } - recLen := int(hdr[3])<<8 | int(hdr[4]) // ignoring version in hdr[1:3] - helloBytes, err := br.Peek(recordHeaderLen + recLen) - if err != nil { - return "" - } - tls.Server(sniSniffConn{r: bytes.NewReader(helloBytes)}, &tls.Config{ - GetConfigForClient: func(hello *tls.ClientHelloInfo) (*tls.Config, error) { - sni = hello.ServerName - return nil, nil - }, - }).Handshake() - return -} - -// sniSniffConn is a net.Conn that reads from r, fails on Writes, -// and crashes otherwise. -type sniSniffConn struct { - r io.Reader - net.Conn // nil; crash on any unexpected use -} - -func (c sniSniffConn) Read(p []byte) (int, error) { return c.r.Read(p) } -func (sniSniffConn) Write(p []byte) (int, error) { return 0, io.EOF } diff --git a/vendor/github.com/inetaf/tcpproxy/tcpproxy.go b/vendor/github.com/inetaf/tcpproxy/tcpproxy.go deleted file mode 100644 index d59c434d78..0000000000 --- a/vendor/github.com/inetaf/tcpproxy/tcpproxy.go +++ /dev/null @@ -1,505 +0,0 @@ -// Copyright 2017 Google Inc. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package tcpproxy lets users build TCP proxies, optionally making -// routing decisions based on HTTP/1 Host headers and the SNI hostname -// in TLS connections. -// -// Typical usage: -// -// var p tcpproxy.Proxy -// p.AddHTTPHostRoute(":80", "foo.com", tcpproxy.To("10.0.0.1:8081")) -// p.AddHTTPHostRoute(":80", "bar.com", tcpproxy.To("10.0.0.2:8082")) -// p.AddRoute(":80", tcpproxy.To("10.0.0.1:8081")) // fallback -// p.AddSNIRoute(":443", "foo.com", tcpproxy.To("10.0.0.1:4431")) -// p.AddSNIRoute(":443", "bar.com", tcpproxy.To("10.0.0.2:4432")) -// p.AddRoute(":443", tcpproxy.To("10.0.0.1:4431")) // fallback -// log.Fatal(p.Run()) -// -// Calling Run (or Start) on a proxy also starts all the necessary -// listeners. -// -// For each accepted connection, the rules for that ipPort are -// matched, in order. If one matches (currently HTTP Host, SNI, or -// always), then the connection is handed to the target. -// -// The two predefined Target implementations are: -// -// 1) DialProxy, proxying to another address (use the To func to return a -// DialProxy value), -// -// 2) TargetListener, making the matched connection available via a -// net.Listener.Accept call. -// -// But Target is an interface, so you can also write your own. -// -// Note that tcpproxy does not do any TLS encryption or decryption. It -// only (via DialProxy) copies bytes around. The SNI hostname in the TLS -// header is unencrypted, for better or worse. -// -// This package makes no API stability promises. If you depend on it, -// vendor it. -package tcpproxy - -import ( - "bufio" - "context" - "errors" - "fmt" - "io" - "log" - "net" - "time" -) - -// Proxy is a proxy. Its zero value is a valid proxy that does -// nothing. Call methods to add routes before calling Start or Run. -// -// The order that routes are added in matters; each is matched in the order -// registered. -type Proxy struct { - configs map[string]*config // ip:port => config - - lns []net.Listener - donec chan struct{} // closed before err - err error // any error from listening - - // ListenFunc optionally specifies an alternate listen - // function. If nil, net.Dial is used. - // The provided net is always "tcp". - ListenFunc func(net, laddr string) (net.Listener, error) -} - -// Matcher reports whether hostname matches the Matcher's criteria. -type Matcher func(ctx context.Context, hostname string) bool - -// equals is a trivial Matcher that implements string equality. -func equals(want string) Matcher { - return func(_ context.Context, got string) bool { - return want == got - } -} - -// config contains the proxying state for one listener. -type config struct { - routes []route -} - -// A route matches a connection to a target. -type route interface { - // match examines the initial bytes of a connection, looking for a - // match. If a match is found, match returns a non-nil Target to - // which the stream should be proxied. match returns nil if the - // connection doesn't match. - // - // match must not consume bytes from the given bufio.Reader, it - // can only Peek. - // - // If an sni or host header was parsed successfully, that will be - // returned as the second parameter. - match(*bufio.Reader) (Target, string) -} - -func (p *Proxy) netListen() func(net, laddr string) (net.Listener, error) { - if p.ListenFunc != nil { - return p.ListenFunc - } - return net.Listen -} - -func (p *Proxy) configFor(ipPort string) *config { - if p.configs == nil { - p.configs = make(map[string]*config) - } - if p.configs[ipPort] == nil { - p.configs[ipPort] = &config{} - } - return p.configs[ipPort] -} - -func (p *Proxy) addRoute(ipPort string, r route) { - cfg := p.configFor(ipPort) - cfg.routes = append(cfg.routes, r) -} - -// AddRoute appends an always-matching route to the ipPort listener, -// directing any connection to dest. -// -// This is generally used as either the only rule (for simple TCP -// proxies), or as the final fallback rule for an ipPort. -// -// The ipPort is any valid net.Listen TCP address. -func (p *Proxy) AddRoute(ipPort string, dest Target) { - p.addRoute(ipPort, fixedTarget{dest}) -} - -type fixedTarget struct { - t Target -} - -func (m fixedTarget) match(*bufio.Reader) (Target, string) { return m.t, "" } - -// Run is calls Start, and then Wait. -// -// It blocks until there's an error. The return value is always -// non-nil. -func (p *Proxy) Run() error { - if err := p.Start(); err != nil { - return err - } - return p.Wait() -} - -// Wait waits for the Proxy to finish running. Currently this can only -// happen if a Listener is closed, or Close is called on the proxy. -// -// It is only valid to call Wait after a successful call to Start. -func (p *Proxy) Wait() error { - <-p.donec - return p.err -} - -// Close closes all the proxy's self-opened listeners. -func (p *Proxy) Close() error { - for _, c := range p.lns { - c.Close() - } - return nil -} - -// Start creates a TCP listener for each unique ipPort from the -// previously created routes and starts the proxy. It returns any -// error from starting listeners. -// -// If it returns a non-nil error, any successfully opened listeners -// are closed. -func (p *Proxy) Start() error { - if p.donec != nil { - return errors.New("already started") - } - p.donec = make(chan struct{}) - errc := make(chan error, len(p.configs)) - p.lns = make([]net.Listener, 0, len(p.configs)) - for ipPort, config := range p.configs { - ln, err := p.netListen()("tcp", ipPort) - if err != nil { - p.Close() - return err - } - p.lns = append(p.lns, ln) - go p.serveListener(errc, ln, config.routes) - } - go p.awaitFirstError(errc) - return nil -} - -func (p *Proxy) awaitFirstError(errc <-chan error) { - p.err = <-errc - close(p.donec) -} - -func (p *Proxy) serveListener(ret chan<- error, ln net.Listener, routes []route) { - for { - c, err := ln.Accept() - if err != nil { - ret <- err - return - } - go p.serveConn(c, routes) - } -} - -// serveConn runs in its own goroutine and matches c against routes. -// It returns whether it matched purely for testing. -func (p *Proxy) serveConn(c net.Conn, routes []route) bool { - br := bufio.NewReader(c) - for _, route := range routes { - if target, hostName := route.match(br); target != nil { - if n := br.Buffered(); n > 0 { - peeked, _ := br.Peek(br.Buffered()) - c = &Conn{ - HostName: hostName, - Peeked: peeked, - Conn: c, - } - } - target.HandleConn(c) - return true - } - } - // TODO: hook for this? - log.Printf("tcpproxy: no routes matched conn %v/%v; closing", c.RemoteAddr().String(), c.LocalAddr().String()) - c.Close() - return false -} - -// Conn is an incoming connection that has had some bytes read from it -// to determine how to route the connection. The Read method stitches -// the peeked bytes and unread bytes back together. -type Conn struct { - // HostName is the hostname field that was sent to the request router. - // In the case of TLS, this is the SNI header, in the case of HTTPHost - // route, it will be the host header. In the case of a fixed - // route, i.e. those created with AddRoute(), this will always be - // empty. This can be useful in the case where further routing decisions - // need to be made in the Target impementation. - HostName string - - // Peeked are the bytes that have been read from Conn for the - // purposes of route matching, but have not yet been consumed - // by Read calls. It set to nil by Read when fully consumed. - Peeked []byte - - // Conn is the underlying connection. - // It can be type asserted against *net.TCPConn or other types - // as needed. It should not be read from directly unless - // Peeked is nil. - net.Conn -} - -func (c *Conn) Read(p []byte) (n int, err error) { - if len(c.Peeked) > 0 { - n = copy(p, c.Peeked) - c.Peeked = c.Peeked[n:] - if len(c.Peeked) == 0 { - c.Peeked = nil - } - return n, nil - } - return c.Conn.Read(p) -} - -// Target is what an incoming matched connection is sent to. -type Target interface { - // HandleConn is called when an incoming connection is - // matched. After the call to HandleConn, the tcpproxy - // package never touches the conn again. Implementations are - // responsible for closing the connection when needed. - // - // The concrete type of conn will be of type *Conn if any - // bytes have been consumed for the purposes of route - // matching. - HandleConn(net.Conn) -} - -// To is shorthand way of writing &tcpproxy.DialProxy{Addr: addr}. -func To(addr string) *DialProxy { - return &DialProxy{Addr: addr} -} - -// DialProxy implements Target by dialing a new connection to Addr -// and then proxying data back and forth. -// -// The To func is a shorthand way of creating a DialProxy. -type DialProxy struct { - // Addr is the TCP address to proxy to. - Addr string - - // KeepAlivePeriod sets the period between TCP keep alives. - // If zero, a default is used. To disable, use a negative number. - // The keep-alive is used for both the client connection and - KeepAlivePeriod time.Duration - - // DialTimeout optionally specifies a dial timeout. - // If zero, a default is used. - // If negative, the timeout is disabled. - DialTimeout time.Duration - - // DialContext optionally specifies an alternate dial function - // for TCP targets. If nil, the standard - // net.Dialer.DialContext method is used. - DialContext func(ctx context.Context, network, address string) (net.Conn, error) - - // OnDialError optionally specifies an alternate way to handle errors dialing Addr. - // If nil, the error is logged and src is closed. - // If non-nil, src is not closed automatically. - OnDialError func(src net.Conn, dstDialErr error) - - // ProxyProtocolVersion optionally specifies the version of - // HAProxy's PROXY protocol to use. The PROXY protocol provides - // connection metadata to the DialProxy target, via a header - // inserted ahead of the client's traffic. The DialProxy target - // must explicitly support and expect the PROXY header; there is - // no graceful downgrade. - // If zero, no PROXY header is sent. Currently, version 1 is supported. - ProxyProtocolVersion int -} - -// UnderlyingConn returns c.Conn if c of type *Conn, -// otherwise it returns c. -func UnderlyingConn(c net.Conn) net.Conn { - if wrap, ok := c.(*Conn); ok { - return wrap.Conn - } - return c -} - -func tcpConn(c net.Conn) (t *net.TCPConn, ok bool) { - if c, ok := UnderlyingConn(c).(*net.TCPConn); ok { - return c, ok - } - if c, ok := c.(*net.TCPConn); ok { - return c, ok - } - return nil, false -} - -type closeReader interface{ CloseRead() error } -type closeWriter interface{ CloseWrite() error } - -func closeRead(c net.Conn) { - // prefer the interfaces, for compatibility with e.g. gvisor/netstack. - if c, ok := UnderlyingConn(c).(closeReader); ok { - c.CloseRead() - } -} - -func closeWrite(c net.Conn) { - // prefer the interfaces, for compatibility with e.g. gvisor/netstack. - if c, ok := UnderlyingConn(c).(closeWriter); ok { - c.CloseWrite() - } -} - -// HandleConn implements the Target interface. -func (dp *DialProxy) HandleConn(src net.Conn) { - ctx := context.Background() - var cancel context.CancelFunc - if dp.DialTimeout >= 0 { - ctx, cancel = context.WithTimeout(ctx, dp.dialTimeout()) - } - dst, err := dp.dialContext()(ctx, "tcp", dp.Addr) - if cancel != nil { - cancel() - } - if err != nil { - dp.onDialError()(src, err) - return - } - defer dst.Close() - - if err = dp.sendProxyHeader(dst, src); err != nil { - dp.onDialError()(src, err) - return - } - defer src.Close() - - if ka := dp.keepAlivePeriod(); ka > 0 { - for _, c := range []net.Conn{src, dst} { - if c, ok := tcpConn(c); ok { - c.SetKeepAlive(true) - c.SetKeepAlivePeriod(ka) - } - } - } - - errc := make(chan error, 2) - go proxyCopy(errc, src, dst) - go proxyCopy(errc, dst, src) - <-errc - <-errc -} - -func (dp *DialProxy) sendProxyHeader(w io.Writer, src net.Conn) error { - switch dp.ProxyProtocolVersion { - case 0: - return nil - case 1: - var srcAddr, dstAddr *net.TCPAddr - if a, ok := src.RemoteAddr().(*net.TCPAddr); ok { - srcAddr = a - } - if a, ok := src.LocalAddr().(*net.TCPAddr); ok { - dstAddr = a - } - - if srcAddr == nil || dstAddr == nil { - _, err := io.WriteString(w, "PROXY UNKNOWN\r\n") - return err - } - - family := "TCP4" - if srcAddr.IP.To4() == nil { - family = "TCP6" - } - _, err := fmt.Fprintf(w, "PROXY %s %s %s %d %d\r\n", family, srcAddr.IP, dstAddr.IP, srcAddr.Port, dstAddr.Port) - return err - default: - return fmt.Errorf("PROXY protocol version %d not supported", dp.ProxyProtocolVersion) - } -} - -// proxyCopy is the function that copies bytes around. -// It's a named function instead of a func literal so users get -// named goroutines in debug goroutine stack dumps. -func proxyCopy(errc chan<- error, dst, src net.Conn) { - defer closeRead(src) - defer closeWrite(dst) - - // Before we unwrap src and/or dst, copy any buffered data. - if wc, ok := src.(*Conn); ok && len(wc.Peeked) > 0 { - if _, err := dst.Write(wc.Peeked); err != nil { - errc <- err - return - } - wc.Peeked = nil - } - - // Unwrap the src and dst from *Conn to *net.TCPConn so Go - // 1.11's splice optimization kicks in. - src = UnderlyingConn(src) - dst = UnderlyingConn(dst) - - _, err := io.Copy(dst, src) - errc <- err -} - -func (dp *DialProxy) keepAlivePeriod() time.Duration { - if dp.KeepAlivePeriod != 0 { - return dp.KeepAlivePeriod - } - return time.Minute -} - -func (dp *DialProxy) dialTimeout() time.Duration { - if dp.DialTimeout > 0 { - return dp.DialTimeout - } - return 10 * time.Second -} - -var defaultDialer = new(net.Dialer) - -func (dp *DialProxy) dialContext() func(ctx context.Context, network, address string) (net.Conn, error) { - if dp.DialContext != nil { - return dp.DialContext - } - return defaultDialer.DialContext -} - -func (dp *DialProxy) onDialError() func(src net.Conn, dstDialErr error) { - if dp.OnDialError != nil { - return dp.OnDialError - } - return func(src net.Conn, dstDialErr error) { - var remoteAddr string - if ra := src.RemoteAddr(); ra != nil { - remoteAddr = ra.String() - } else { - remoteAddr = fmt.Sprintf("[%T with nil RemoteAddr]", src) - } - log.Printf("tcpproxy: for incoming conn %v, error dialing %q: %v", remoteAddr, dp.Addr, dstDialErr) - src.Close() - } -} diff --git a/vendor/github.com/insomniacslk/dhcp/CONTRIBUTORS.md b/vendor/github.com/insomniacslk/dhcp/CONTRIBUTORS.md deleted file mode 100644 index a43fa7942c..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/CONTRIBUTORS.md +++ /dev/null @@ -1,10 +0,0 @@ -## Contributors - -* Andrea Barberio (main author) -* Pablo Mazzini (tons of fixes and new options) -* Sean Karlage (BSDP package, and of tons of improvements to the DHCPv4 package) -* Owen Mooney (several option fixes and modifiers) -* Mikolaj Walczak (asynchronous DHCPv6 client) -* Chris Koch (tons of improvements in DHCPv4 and DHCPv6 internals and interface) -* Akshay Navale, Brandon Bennett and Chris Gorham (ZTPv6 and ZTPv4 packages) -* Anatole Denis (tons of fixes and new options) diff --git a/vendor/github.com/insomniacslk/dhcp/LICENSE b/vendor/github.com/insomniacslk/dhcp/LICENSE deleted file mode 100644 index c43d60d83e..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/LICENSE +++ /dev/null @@ -1,29 +0,0 @@ -BSD 3-Clause License - -Copyright (c) 2018, Andrea Barberio -All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - -* Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. - -* Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - -* Neither the name of the copyright holder nor the names of its - contributors may be used to endorse or promote products derived from - this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE -FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, -OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/bindtointerface.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/bindtointerface.go deleted file mode 100644 index dbe8fbcd9f..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/bindtointerface.go +++ /dev/null @@ -1,10 +0,0 @@ -package dhcpv4 - -import ( - "github.com/insomniacslk/dhcp/interfaces" -) - -// BindToInterface (deprecated) redirects to interfaces.BindToInterface -func BindToInterface(fd int, ifname string) error { - return interfaces.BindToInterface(fd, ifname) -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/defaults.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/defaults.go deleted file mode 100644 index 4faec2cc3c..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/defaults.go +++ /dev/null @@ -1,6 +0,0 @@ -package dhcpv4 - -const ( - ServerPort = 67 - ClientPort = 68 -) diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/dhcpv4.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/dhcpv4.go deleted file mode 100644 index a875431217..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/dhcpv4.go +++ /dev/null @@ -1,856 +0,0 @@ -// Package dhcpv4 provides encoding and decoding of DHCPv4 packets and options. -// -// Example Usage: -// -// p, err := dhcpv4.New( -// dhcpv4.WithClientIP(net.IP{192, 168, 0, 1}), -// dhcpv4.WithMessageType(dhcpv4.MessageTypeInform), -// ) -// p.UpdateOption(dhcpv4.OptServerIdentifier(net.IP{192, 110, 110, 110})) -// -// // Retrieve the DHCP Message Type option. -// m := p.MessageType() -// -// bytesOnTheWire := p.ToBytes() -// longSummary := p.Summary() -package dhcpv4 - -import ( - "bytes" - "context" - "errors" - "fmt" - "net" - "strings" - "time" - - "github.com/insomniacslk/dhcp/iana" - "github.com/insomniacslk/dhcp/rfc1035label" - "github.com/u-root/uio/rand" - "github.com/u-root/uio/uio" -) - -const ( - // minPacketLen is the minimum DHCP header length. - minPacketLen = 236 - - // MaxHWAddrLen is the maximum hardware address length of the ClientHWAddr - // (client hardware address) according to RFC 2131, Section 2. This is the - // link-layer destination a server must send responses to. - MaxHWAddrLen = 16 - - // MaxMessageSize is the maximum size in bytes that a DHCPv4 packet can hold. - MaxMessageSize = 576 - - // Per RFC 951, the minimum length of a packet is 300 bytes. - bootpMinLen = 300 -) - -// RandomTimeout is the amount of time to wait until random number generation -// is canceled. -var RandomTimeout = 2 * time.Minute - -// magicCookie is the magic 4-byte value at the beginning of the list of options -// in a DHCPv4 packet. -var magicCookie = [4]byte{99, 130, 83, 99} - -// DHCPv4 represents a DHCPv4 packet header and options. See the New* functions -// to build DHCPv4 packets. -type DHCPv4 struct { - OpCode OpcodeType - HWType iana.HWType - HopCount uint8 - TransactionID TransactionID - NumSeconds uint16 - Flags uint16 - ClientIPAddr net.IP - YourIPAddr net.IP - ServerIPAddr net.IP - GatewayIPAddr net.IP - ClientHWAddr net.HardwareAddr - ServerHostName string - BootFileName string - Options Options -} - -// Modifier defines the signature for functions that can modify DHCPv4 -// structures. This is used to simplify packet manipulation -type Modifier func(d *DHCPv4) - -// IPv4AddrsForInterface obtains the currently-configured, non-loopback IPv4 -// addresses for iface. -func IPv4AddrsForInterface(iface *net.Interface) ([]net.IP, error) { - if iface == nil { - return nil, errors.New("IPv4AddrsForInterface: iface cannot be nil") - } - addrs, err := iface.Addrs() - if err != nil { - return nil, err - } - return GetExternalIPv4Addrs(addrs) -} - -// GetExternalIPv4Addrs obtains the currently-configured, non-loopback IPv4 -// addresses from `addrs` coming from a particular interface (e.g. -// net.Interface.Addrs). -func GetExternalIPv4Addrs(addrs []net.Addr) ([]net.IP, error) { - var v4addrs []net.IP - for _, addr := range addrs { - var ip net.IP - switch v := addr.(type) { - case *net.IPAddr: - ip = v.IP - case *net.IPNet: - ip = v.IP - } - - if ip == nil || ip.IsLoopback() { - continue - } - ip = ip.To4() - if ip == nil { - continue - } - v4addrs = append(v4addrs, ip) - } - return v4addrs, nil -} - -// GenerateTransactionID generates a random 32-bits number suitable for use as -// TransactionID -func GenerateTransactionID() (TransactionID, error) { - var xid TransactionID - ctx, cancel := context.WithTimeout(context.Background(), RandomTimeout) - defer cancel() - n, err := rand.ReadContext(ctx, xid[:]) - if err != nil { - return xid, fmt.Errorf("could not get random number: %v", err) - } - if n != 4 { - return xid, errors.New("invalid random sequence for transaction ID: smaller than 32 bits") - } - return xid, err -} - -// New creates a new DHCPv4 structure and fill it up with default values. It -// won't be a valid DHCPv4 message so you will need to adjust its fields. -// See also NewDiscovery, NewRequest, NewAcknowledge, NewInform and NewRelease. -func New(modifiers ...Modifier) (*DHCPv4, error) { - xid, err := GenerateTransactionID() - if err != nil { - return nil, err - } - d := DHCPv4{ - OpCode: OpcodeBootRequest, - HWType: iana.HWTypeEthernet, - ClientHWAddr: make(net.HardwareAddr, 6), - HopCount: 0, - TransactionID: xid, - NumSeconds: 0, - Flags: 0, - ClientIPAddr: net.IPv4zero, - YourIPAddr: net.IPv4zero, - ServerIPAddr: net.IPv4zero, - GatewayIPAddr: net.IPv4zero, - Options: make(Options), - } - for _, mod := range modifiers { - mod(&d) - } - return &d, nil -} - -// NewDiscoveryForInterface builds a new DHCPv4 Discovery message, with a default -// Ethernet HW type and the hardware address obtained from the specified -// interface. -func NewDiscoveryForInterface(ifname string, modifiers ...Modifier) (*DHCPv4, error) { - iface, err := net.InterfaceByName(ifname) - if err != nil { - return nil, err - } - return NewDiscovery(iface.HardwareAddr, modifiers...) -} - -// NewDiscovery builds a new DHCPv4 Discovery message, with a default Ethernet -// HW type and specified hardware address. -func NewDiscovery(hwaddr net.HardwareAddr, modifiers ...Modifier) (*DHCPv4, error) { - return New(PrependModifiers(modifiers, - WithHwAddr(hwaddr), - WithRequestedOptions( - OptionSubnetMask, - OptionRouter, - OptionDomainName, - OptionDomainNameServer, - ), - WithMessageType(MessageTypeDiscover), - )...) -} - -// NewInformForInterface builds a new DHCPv4 Informational message with default -// Ethernet HW type and the hardware address obtained from the specified -// interface. -func NewInformForInterface(ifname string, needsBroadcast bool) (*DHCPv4, error) { - // get hw addr - iface, err := net.InterfaceByName(ifname) - if err != nil { - return nil, err - } - - // Set Client IP as iface's currently-configured IP. - localIPs, err := IPv4AddrsForInterface(iface) - if err != nil || len(localIPs) == 0 { - return nil, fmt.Errorf("could not get local IPs for iface %s", ifname) - } - pkt, err := NewInform(iface.HardwareAddr, localIPs[0]) - if err != nil { - return nil, err - } - - if needsBroadcast { - pkt.SetBroadcast() - } else { - pkt.SetUnicast() - } - return pkt, nil -} - -// PrependModifiers prepends other to m. -func PrependModifiers(m []Modifier, other ...Modifier) []Modifier { - return append(other, m...) -} - -// NewInform builds a new DHCPv4 Informational message with the specified -// hardware address. -func NewInform(hwaddr net.HardwareAddr, localIP net.IP, modifiers ...Modifier) (*DHCPv4, error) { - return New(PrependModifiers(modifiers, - WithHwAddr(hwaddr), - WithMessageType(MessageTypeInform), - WithClientIP(localIP), - )...) -} - -// NewRequestFromOffer builds a DHCPv4 request from an offer. -// It assumes the SELECTING state by default, see Section 4.3.2 in RFC 2131 for more details. -func NewRequestFromOffer(offer *DHCPv4, modifiers ...Modifier) (*DHCPv4, error) { - return New(PrependModifiers(modifiers, - WithReply(offer), - WithMessageType(MessageTypeRequest), - WithClientIP(offer.ClientIPAddr), - WithOption(OptRequestedIPAddress(offer.YourIPAddr)), - // This is usually the server IP. - WithOptionCopied(offer, OptionServerIdentifier), - WithRequestedOptions( - OptionSubnetMask, - OptionRouter, - OptionDomainName, - OptionDomainNameServer, - ), - )...) -} - -// NewRenewFromAck builds a DHCPv4 RENEW-style request from the ACK of a lease. RENEW requests have -// minor changes to their options compared to SELECT requests as specified by RFC 2131, section 4.3.2. -func NewRenewFromAck(ack *DHCPv4, modifiers ...Modifier) (*DHCPv4, error) { - return New(PrependModifiers(modifiers, - WithReply(ack), - WithMessageType(MessageTypeRequest), - // The client IP must be filled in with the IP offered to the client - WithClientIP(ack.YourIPAddr), - // The renewal request must use unicast - WithBroadcast(false), - WithRequestedOptions( - OptionSubnetMask, - OptionRouter, - OptionDomainName, - OptionDomainNameServer, - ), - )...) -} - -// NewReplyFromRequest builds a DHCPv4 reply from a request. -func NewReplyFromRequest(request *DHCPv4, modifiers ...Modifier) (*DHCPv4, error) { - return New(PrependModifiers(modifiers, - WithReply(request), - WithGatewayIP(request.GatewayIPAddr), - WithOptionCopied(request, OptionRelayAgentInformation), - - // RFC 6842 states the Client Identifier option must be copied - // from the request if a client specified it. - WithOptionCopied(request, OptionClientIdentifier), - )...) -} - -// NewReleaseFromACK creates a DHCPv4 Release message from ACK. -// default Release message without any Modifer is created as following: -// - option Message Type is Release -// - ClientIP is set to ack.YourIPAddr -// - ClientHWAddr is set to ack.ClientHWAddr -// - Unicast -// - option Server Identifier is set to ack's ServerIdentifier -func NewReleaseFromACK(ack *DHCPv4, modifiers ...Modifier) (*DHCPv4, error) { - return New(PrependModifiers(modifiers, - WithMessageType(MessageTypeRelease), - WithClientIP(ack.YourIPAddr), - WithHwAddr(ack.ClientHWAddr), - WithBroadcast(false), - WithOptionCopied(ack, OptionServerIdentifier), - )...) -} - -// FromBytes decodes a DHCPv4 packet from a sequence of bytes, and returns an -// error if the packet is not valid. -func FromBytes(q []byte) (*DHCPv4, error) { - var p DHCPv4 - buf := uio.NewBigEndianBuffer(q) - - p.OpCode = OpcodeType(buf.Read8()) - p.HWType = iana.HWType(buf.Read8()) - - hwAddrLen := buf.Read8() - - p.HopCount = buf.Read8() - buf.ReadBytes(p.TransactionID[:]) - p.NumSeconds = buf.Read16() - p.Flags = buf.Read16() - - p.ClientIPAddr = net.IP(buf.CopyN(net.IPv4len)) - p.YourIPAddr = net.IP(buf.CopyN(net.IPv4len)) - p.ServerIPAddr = net.IP(buf.CopyN(net.IPv4len)) - p.GatewayIPAddr = net.IP(buf.CopyN(net.IPv4len)) - - if hwAddrLen > 16 { - hwAddrLen = 16 - } - // Always read 16 bytes, but only use hwaddrlen of them. - p.ClientHWAddr = make(net.HardwareAddr, 16) - buf.ReadBytes(p.ClientHWAddr) - p.ClientHWAddr = p.ClientHWAddr[:hwAddrLen] - - var sname [64]byte - buf.ReadBytes(sname[:]) - length := strings.Index(string(sname[:]), "\x00") - if length == -1 { - length = 64 - } - p.ServerHostName = string(sname[:length]) - - var file [128]byte - buf.ReadBytes(file[:]) - length = strings.Index(string(file[:]), "\x00") - if length == -1 { - length = 128 - } - p.BootFileName = string(file[:length]) - - var cookie [4]byte - buf.ReadBytes(cookie[:]) - - if err := buf.Error(); err != nil { - return nil, err - } - if cookie != magicCookie { - return nil, fmt.Errorf("malformed DHCP packet: got magic cookie %v, want %v", cookie[:], magicCookie[:]) - } - - p.Options = make(Options) - if err := p.Options.fromBytesCheckEnd(buf.Data(), true); err != nil { - return nil, err - } - return &p, nil -} - -// FlagsToString returns a human-readable representation of the flags field. -func (d *DHCPv4) FlagsToString() string { - flags := "" - if d.IsBroadcast() { - flags += "Broadcast" - } else { - flags += "Unicast" - } - if d.Flags&0xfe != 0 { - flags += " (reserved bits not zeroed)" - } - return flags -} - -// IsBroadcast indicates whether the packet is a broadcast packet. -func (d *DHCPv4) IsBroadcast() bool { - return d.Flags&0x8000 == 0x8000 -} - -// SetBroadcast sets the packet to be a broadcast packet. -func (d *DHCPv4) SetBroadcast() { - d.Flags |= 0x8000 -} - -// IsUnicast indicates whether the packet is a unicast packet. -func (d *DHCPv4) IsUnicast() bool { - return d.Flags&0x8000 == 0 -} - -// SetUnicast sets the packet to be a unicast packet. -func (d *DHCPv4) SetUnicast() { - d.Flags &= ^uint16(0x8000) -} - -// GetOneOption returns the option that matches the given option code. -// -// According to RFC 3396, options that are specified more than once are -// concatenated, and hence this should always just return one option. -func (d *DHCPv4) GetOneOption(code OptionCode) []byte { - return d.Options.Get(code) -} - -// DeleteOption deletes an existing option with the given option code. -func (d *DHCPv4) DeleteOption(code OptionCode) { - if d.Options != nil { - d.Options.Del(code) - } -} - -// UpdateOption replaces an existing option with the same option code with the -// given one, adding it if not already present. -func (d *DHCPv4) UpdateOption(opt Option) { - if d.Options == nil { - d.Options = make(Options) - } - d.Options.Update(opt) -} - -// String implements fmt.Stringer. -func (d *DHCPv4) String() string { - return fmt.Sprintf("DHCPv4(xid=%s hwaddr=%s msg_type=%s, your_ip=%s, server_ip=%s)", - d.TransactionID, d.ClientHWAddr, d.MessageType(), d.YourIPAddr, d.ServerIPAddr) -} - -// SummaryWithVendor prints a summary of the packet, interpreting the -// vendor-specific info option using the given parser (can be nil). -func (d *DHCPv4) SummaryWithVendor(vendorDecoder OptionDecoder) string { - ret := fmt.Sprintf( - "DHCPv4 Message\n"+ - " opcode: %s\n"+ - " hwtype: %s\n"+ - " hopcount: %v\n"+ - " transaction ID: %s\n"+ - " num seconds: %v\n"+ - " flags: %v (0x%02x)\n"+ - " client IP: %s\n"+ - " your IP: %s\n"+ - " server IP: %s\n"+ - " gateway IP: %s\n"+ - " client MAC: %s\n"+ - " server hostname: %s\n"+ - " bootfile name: %s\n", - d.OpCode, - d.HWType, - d.HopCount, - d.TransactionID, - d.NumSeconds, - d.FlagsToString(), - d.Flags, - d.ClientIPAddr, - d.YourIPAddr, - d.ServerIPAddr, - d.GatewayIPAddr, - d.ClientHWAddr, - d.ServerHostName, - d.BootFileName, - ) - ret += " options:\n" - ret += d.Options.Summary(vendorDecoder) - return ret -} - -// Summary prints detailed information about the packet. -func (d *DHCPv4) Summary() string { - return d.SummaryWithVendor(nil) -} - -// IsOptionRequested returns true if that option is within the requested -// options of the DHCPv4 message. -func (d *DHCPv4) IsOptionRequested(requested OptionCode) bool { - rq := d.ParameterRequestList() - if rq == nil { - // RFC2131§3.5 - // Not all clients require initialization of all parameters [...] - // Two techniques are used to reduce the number of parameters transmitted from - // the server to the client. [...] Second, in its initial DHCPDISCOVER or - // DHCPREQUEST message, a client may provide the server with a list of specific - // parameters the client is interested in. - // We interpret this to say that all available parameters should be sent if - // the parameter request list is not sent at all. - return true - } - - for _, o := range rq { - if o.Code() == requested.Code() { - return true - } - } - return false -} - -// In case somebody forgets to set an IP, just write 0s as default values. -func writeIP(b *uio.Lexer, ip net.IP) { - var zeros [net.IPv4len]byte - if ip == nil { - b.WriteBytes(zeros[:]) - } else { - // Converting IP to 4 byte format - ip = ip.To4() - b.WriteBytes(ip[:net.IPv4len]) - } -} - -// ToBytes writes the packet to binary. -func (d *DHCPv4) ToBytes() []byte { - buf := uio.NewBigEndianBuffer(make([]byte, 0, minPacketLen)) - buf.Write8(uint8(d.OpCode)) - buf.Write8(uint8(d.HWType)) - - // HwAddrLen - hlen := uint8(len(d.ClientHWAddr)) - buf.Write8(hlen) - buf.Write8(d.HopCount) - buf.WriteBytes(d.TransactionID[:]) - buf.Write16(d.NumSeconds) - buf.Write16(d.Flags) - - writeIP(buf, d.ClientIPAddr) - writeIP(buf, d.YourIPAddr) - writeIP(buf, d.ServerIPAddr) - writeIP(buf, d.GatewayIPAddr) - copy(buf.WriteN(16), d.ClientHWAddr) - - var sname [64]byte - copy(sname[:63], []byte(d.ServerHostName)) - buf.WriteBytes(sname[:]) - - var file [128]byte - copy(file[:127], []byte(d.BootFileName)) - buf.WriteBytes(file[:]) - - // The magic cookie. - buf.WriteBytes(magicCookie[:]) - - // Write all options. - d.Options.Marshal(buf) - - // Finish the options. - buf.Write8(OptionEnd.Code()) - - // DHCP is based on BOOTP, and BOOTP messages have a minimum length of - // 300 bytes per RFC 951. This not stated explicitly, but if you sum up - // all the bytes in the message layout, you'll get 300 bytes. - // - // Some DHCP servers and relay agents care about this BOOTP legacy B.S. - // and "conveniently" drop messages that are less than 300 bytes long. - if buf.Len() < bootpMinLen { - buf.WriteBytes(bytes.Repeat([]byte{OptionPad.Code()}, bootpMinLen-buf.Len())) - } - - return buf.Data() -} - -// GetBroadcastAddress returns the DHCPv4 Broadcast Address value in d. -// -// The broadcast address option is described in RFC 2132, Section 5.3. -func (d *DHCPv4) BroadcastAddress() net.IP { - return GetIP(OptionBroadcastAddress, d.Options) -} - -// RequestedIPAddress returns the DHCPv4 Requested IP Address value in d. -// -// The requested IP address option is described by RFC 2132, Section 9.1. -func (d *DHCPv4) RequestedIPAddress() net.IP { - return GetIP(OptionRequestedIPAddress, d.Options) -} - -// ServerIdentifier returns the DHCPv4 Server Identifier value in d. -// -// The server identifier option is described by RFC 2132, Section 9.7. -func (d *DHCPv4) ServerIdentifier() net.IP { - return GetIP(OptionServerIdentifier, d.Options) -} - -// Router parses the DHCPv4 Router option if present. -// -// The Router option is described by RFC 2132, Section 3.5. -func (d *DHCPv4) Router() []net.IP { - return GetIPs(OptionRouter, d.Options) -} - -// ClasslessStaticRoute parses the DHCPv4 Classless Static Route option if present. -// -// The Classless Static Route option is described by RFC 3442. -func (d *DHCPv4) ClasslessStaticRoute() []*Route { - v := d.Options.Get(OptionClasslessStaticRoute) - if v == nil { - return nil - } - var routes Routes - if err := routes.FromBytes(v); err != nil { - return nil - } - return routes -} - -// NTPServers parses the DHCPv4 NTP Servers option if present. -// -// The NTP servers option is described by RFC 2132, Section 8.3. -func (d *DHCPv4) NTPServers() []net.IP { - return GetIPs(OptionNTPServers, d.Options) -} - -// DNS parses the DHCPv4 Domain Name Server option if present. -// -// The DNS server option is described by RFC 2132, Section 3.8. -func (d *DHCPv4) DNS() []net.IP { - return GetIPs(OptionDomainNameServer, d.Options) -} - -// DomainName parses the DHCPv4 Domain Name option if present. -// -// The Domain Name option is described by RFC 2132, Section 3.17. -func (d *DHCPv4) DomainName() string { - return GetString(OptionDomainName, d.Options) -} - -// HostName parses the DHCPv4 Host Name option if present. -// -// The Host Name option is described by RFC 2132, Section 3.14. -func (d *DHCPv4) HostName() string { - name := GetString(OptionHostName, d.Options) - return strings.TrimRight(name, "\x00") -} - -// RootPath parses the DHCPv4 Root Path option if present. -// -// The Root Path option is described by RFC 2132, Section 3.19. -func (d *DHCPv4) RootPath() string { - return GetString(OptionRootPath, d.Options) -} - -// BootFileNameOption parses the DHCPv4 Bootfile Name option if present. -// -// The Bootfile Name option is described by RFC 2132, Section 9.5. -func (d *DHCPv4) BootFileNameOption() string { - name := GetString(OptionBootfileName, d.Options) - return strings.TrimRight(name, "\x00") -} - -// TFTPServerName parses the DHCPv4 TFTP Server Name option if present. -// -// The TFTP Server Name option is described by RFC 2132, Section 9.4. -func (d *DHCPv4) TFTPServerName() string { - name := GetString(OptionTFTPServerName, d.Options) - return strings.TrimRight(name, "\x00") -} - -// ClassIdentifier parses the DHCPv4 Class Identifier option if present. -// -// The Vendor Class Identifier option is described by RFC 2132, Section 9.13. -func (d *DHCPv4) ClassIdentifier() string { - return GetString(OptionClassIdentifier, d.Options) -} - -// ClientArch returns the Client System Architecture Type option. -func (d *DHCPv4) ClientArch() []iana.Arch { - v := d.Options.Get(OptionClientSystemArchitectureType) - if v == nil { - return nil - } - var archs iana.Archs - if err := archs.FromBytes(v); err != nil { - return nil - } - return archs -} - -// DomainSearch returns the domain search list if present. -// -// The domain search option is described by RFC 3397, Section 2. -func (d *DHCPv4) DomainSearch() *rfc1035label.Labels { - v := d.Options.Get(OptionDNSDomainSearchList) - if v == nil { - return nil - } - labels, err := rfc1035label.FromBytes(v) - if err != nil { - return nil - } - return labels -} - -// IPAddressLeaseTime returns the IP address lease time or the given -// default duration if not present. -// -// The IP address lease time option is described by RFC 2132, Section 9.2. -func (d *DHCPv4) IPAddressLeaseTime(def time.Duration) time.Duration { - v := d.Options.Get(OptionIPAddressLeaseTime) - if v == nil { - return def - } - var dur Duration - if err := dur.FromBytes(v); err != nil { - return def - } - return time.Duration(dur) -} - -// IPAddressRenewalTime returns the IP address renewal time or the given -// default duration if not present. -// -// The IP address renewal time option is described by RFC 2132, Section 9.11. -func (d *DHCPv4) IPAddressRenewalTime(def time.Duration) time.Duration { - v := d.Options.Get(OptionRenewTimeValue) - if v == nil { - return def - } - var dur Duration - if err := dur.FromBytes(v); err != nil { - return def - } - return time.Duration(dur) -} - -// IPAddressRebindingTime returns the IP address rebinding time or the given -// default duration if not present. -// -// The IP address rebinding time option is described by RFC 2132, Section 9.12. -func (d *DHCPv4) IPAddressRebindingTime(def time.Duration) time.Duration { - v := d.Options.Get(OptionRebindingTimeValue) - if v == nil { - return def - } - var dur Duration - if err := dur.FromBytes(v); err != nil { - return def - } - return time.Duration(dur) -} - -// IPv6OnlyPreferred returns the V6ONLY_WAIT duration, and a boolean -// indicating whether this option was present. -// -// The IPv6-Only Preferred option is described by RFC 8925, Section 3.1. -func (d *DHCPv4) IPv6OnlyPreferred() (time.Duration, bool) { - v := d.Options.Get(OptionIPv6OnlyPreferred) - if v == nil { - return 0, false - } - var dur Duration - if err := dur.FromBytes(v); err != nil { - return 0, false - } - return time.Duration(dur), true -} - -// MaxMessageSize returns the DHCP Maximum Message Size if present. -// -// The Maximum DHCP Message Size option is described by RFC 2132, Section 9.10. -func (d *DHCPv4) MaxMessageSize() (uint16, error) { - return GetUint16(OptionMaximumDHCPMessageSize, d.Options) -} - -// AutoConfigure returns the value of the AutoConfigure option, and a -// boolean indicating if it was present. -// -// The AutoConfigure option is described by RFC 2563, Section 2. -func (d *DHCPv4) AutoConfigure() (AutoConfiguration, bool) { - v, err := GetByte(OptionAutoConfigure, d.Options) - return AutoConfiguration(v), err == nil -} - -// MessageType returns the DHCPv4 Message Type option. -func (d *DHCPv4) MessageType() MessageType { - v := d.Options.Get(OptionDHCPMessageType) - if v == nil { - return MessageTypeNone - } - var m MessageType - if err := m.FromBytes(v); err != nil { - return MessageTypeNone - } - return m -} - -// Message returns the DHCPv4 (Error) Message option. -// -// The message options is described in RFC 2132, Section 9.9. -func (d *DHCPv4) Message() string { - return GetString(OptionMessage, d.Options) -} - -// ParameterRequestList returns the DHCPv4 Parameter Request List. -// -// The parameter request list option is described by RFC 2132, Section 9.8. -func (d *DHCPv4) ParameterRequestList() OptionCodeList { - v := d.Options.Get(OptionParameterRequestList) - if v == nil { - return nil - } - var codes OptionCodeList - if err := codes.FromBytes(v); err != nil { - return nil - } - return codes -} - -// RelayAgentInfo returns options embedded by the relay agent. -// -// The relay agent info option is described by RFC 3046. -func (d *DHCPv4) RelayAgentInfo() *RelayOptions { - v := d.Options.Get(OptionRelayAgentInformation) - if v == nil { - return nil - } - var relayOptions RelayOptions - if err := relayOptions.FromBytes(v); err != nil { - return nil - } - return &relayOptions -} - -// SubnetMask returns a subnet mask option contained if present. -// -// The subnet mask option is described by RFC 2132, Section 3.3. -func (d *DHCPv4) SubnetMask() net.IPMask { - v := d.Options.Get(OptionSubnetMask) - if v == nil { - return nil - } - var im IPMask - if err := im.FromBytes(v); err != nil { - return nil - } - return net.IPMask(im) -} - -// UserClass returns the user class if present. -// -// The user class information option is defined by RFC 3004. -func (d *DHCPv4) UserClass() []string { - v := d.Options.Get(OptionUserClassInformation) - if v == nil { - return nil - } - var uc Strings - if err := uc.FromBytes(v); err != nil { - return []string{GetString(OptionUserClassInformation, d.Options)} - } - return uc -} - -// VIVC returns the vendor-identifying vendor class option if present. -func (d *DHCPv4) VIVC() VIVCIdentifiers { - v := d.Options.Get(OptionVendorIdentifyingVendorClass) - if v == nil { - return nil - } - var ids VIVCIdentifiers - if err := ids.FromBytes(v); err != nil { - return nil - } - return ids -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/modifiers.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/modifiers.go deleted file mode 100644 index 55863fe0f5..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/modifiers.go +++ /dev/null @@ -1,176 +0,0 @@ -package dhcpv4 - -import ( - "net" - "time" - - "github.com/insomniacslk/dhcp/iana" - "github.com/insomniacslk/dhcp/rfc1035label" -) - -// WithTransactionID sets the Transaction ID for the DHCPv4 packet -func WithTransactionID(xid TransactionID) Modifier { - return func(d *DHCPv4) { - d.TransactionID = xid - } -} - -// WithClientIP sets the Client IP for a DHCPv4 packet. -func WithClientIP(ip net.IP) Modifier { - return func(d *DHCPv4) { - d.ClientIPAddr = ip - } -} - -// WithYourIP sets the Your IP for a DHCPv4 packet. -func WithYourIP(ip net.IP) Modifier { - return func(d *DHCPv4) { - d.YourIPAddr = ip - } -} - -// WithServerIP sets the Server IP for a DHCPv4 packet. -func WithServerIP(ip net.IP) Modifier { - return func(d *DHCPv4) { - d.ServerIPAddr = ip - } -} - -// WithGatewayIP sets the Gateway IP for the DHCPv4 packet. -func WithGatewayIP(ip net.IP) Modifier { - return func(d *DHCPv4) { - d.GatewayIPAddr = ip - } -} - -// WithOptionCopied copies the value of option opt from request. -func WithOptionCopied(request *DHCPv4, opt OptionCode) Modifier { - return func(d *DHCPv4) { - if val := request.Options.Get(opt); val != nil { - d.UpdateOption(OptGeneric(opt, val)) - } - } -} - -// WithReply fills in opcode, hwtype, xid, clienthwaddr, and flags from the given packet. -func WithReply(request *DHCPv4) Modifier { - return func(d *DHCPv4) { - if request.OpCode == OpcodeBootRequest { - d.OpCode = OpcodeBootReply - } else { - d.OpCode = OpcodeBootRequest - } - d.HWType = request.HWType - d.TransactionID = request.TransactionID - d.ClientHWAddr = request.ClientHWAddr - d.Flags = request.Flags - } -} - -// WithHWType sets the Hardware Type for a DHCPv4 packet. -func WithHWType(hwt iana.HWType) Modifier { - return func(d *DHCPv4) { - d.HWType = hwt - } -} - -// WithBroadcast sets the packet to be broadcast or unicast -func WithBroadcast(broadcast bool) Modifier { - return func(d *DHCPv4) { - if broadcast { - d.SetBroadcast() - } else { - d.SetUnicast() - } - } -} - -// WithHwAddr sets the hardware address for a packet -func WithHwAddr(hwaddr net.HardwareAddr) Modifier { - return func(d *DHCPv4) { - d.ClientHWAddr = hwaddr - } -} - -// WithOption appends a DHCPv4 option provided by the user -func WithOption(opt Option) Modifier { - return func(d *DHCPv4) { - d.UpdateOption(opt) - } -} - -// WithoutOption removes the DHCPv4 option with the given code -func WithoutOption(code OptionCode) Modifier { - return func(d *DHCPv4) { - d.DeleteOption(code) - } -} - -// WithUserClass adds a user class option to the packet. -// The rfc parameter allows you to specify if the userclass should be -// rfc compliant or not. More details in issue #113 -func WithUserClass(uc string, rfc bool) Modifier { - // TODO let the user specify multiple user classes - return func(d *DHCPv4) { - if rfc { - d.UpdateOption(OptRFC3004UserClass([]string{uc})) - } else { - d.UpdateOption(OptUserClass(uc)) - } - } -} - -// WithNetboot adds bootfile URL and bootfile param options to a DHCPv4 packet. -func WithNetboot(d *DHCPv4) { - WithRequestedOptions(OptionTFTPServerName, OptionBootfileName)(d) -} - -// WithMessageType adds the DHCPv4 message type m to a packet. -func WithMessageType(m MessageType) Modifier { - return WithOption(OptMessageType(m)) -} - -// WithRequestedOptions adds requested options to the packet. -func WithRequestedOptions(optionCodes ...OptionCode) Modifier { - return func(d *DHCPv4) { - cl := d.ParameterRequestList() - cl.Add(optionCodes...) - d.UpdateOption(OptParameterRequestList(cl...)) - } -} - -// WithRelay adds parameters required for DHCPv4 to be relayed by the relay -// server with given ip -func WithRelay(ip net.IP) Modifier { - return func(d *DHCPv4) { - d.SetUnicast() - d.GatewayIPAddr = ip - d.HopCount++ - } -} - -// WithNetmask adds or updates an OptSubnetMask -func WithNetmask(mask net.IPMask) Modifier { - return WithOption(OptSubnetMask(mask)) -} - -// WithLeaseTime adds or updates an OptIPAddressLeaseTime -func WithLeaseTime(leaseTime uint32) Modifier { - return WithOption(OptIPAddressLeaseTime(time.Duration(leaseTime) * time.Second)) -} - -// WithIPv6OnlyPreferred adds or updates an OptIPv6OnlyPreferred -func WithIPv6OnlyPreferred(v6OnlyWait uint32) Modifier { - return WithOption(OptIPv6OnlyPreferred(time.Duration(v6OnlyWait) * time.Second)) -} - -// WithDomainSearchList adds or updates an OptionDomainSearch -func WithDomainSearchList(searchList ...string) Modifier { - return WithOption(OptDomainSearch(&rfc1035label.Labels{ - Labels: searchList, - })) -} - -func WithGeneric(code OptionCode, value []byte) Modifier { - return WithOption(OptGeneric(code, value)) -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_autoconfigure.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_autoconfigure.go deleted file mode 100644 index e2237bfc41..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_autoconfigure.go +++ /dev/null @@ -1,61 +0,0 @@ -package dhcpv4 - -import ( - "fmt" -) - -// AutoConfiguration implements encoding and decoding functions for a -// byte enumeration as used in RFC 2563, Section 2. -type AutoConfiguration byte - -const ( - DoNotAutoConfigure AutoConfiguration = 0 - AutoConfigure AutoConfiguration = 1 -) - -var autoConfigureToString = map[AutoConfiguration]string{ - DoNotAutoConfigure: "DoNotAutoConfigure", - AutoConfigure: "AutoConfigure", -} - -// ToBytes returns a serialized stream of bytes for this option. -func (o AutoConfiguration) ToBytes() []byte { - return []byte{byte(o)} -} - -// String returns a human-readable string for this option. -func (o AutoConfiguration) String() string { - s := autoConfigureToString[o] - if s != "" { - return s - } - return fmt.Sprintf("UNKNOWN (%d)", byte(o)) -} - -// FromBytes parses a a single byte into AutoConfiguration -func (o *AutoConfiguration) FromBytes(data []byte) error { - if len(data) == 1 { - *o = AutoConfiguration(data[0]) - return nil - } - return fmt.Errorf("Invalid buffer length (%d)", len(data)) -} - -// GetByte parses any single-byte option -func GetByte(code OptionCode, o Options) (byte, error) { - data := o.Get(code) - if data == nil { - return 0, fmt.Errorf("option not present") - } - if len(data) != 1 { - return 0, fmt.Errorf("Invalid buffer length (%d)", len(data)) - } - return data[0], nil -} - -// OptAutoConfigure returns a new AutoConfigure option. -// -// The AutoConfigure option is described by RFC 2563, Section 2. -func OptAutoConfigure(autoconf AutoConfiguration) Option { - return Option{Code: OptionAutoConfigure, Value: autoconf} -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_duration.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_duration.go deleted file mode 100644 index 80be32d84c..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_duration.go +++ /dev/null @@ -1,56 +0,0 @@ -package dhcpv4 - -import ( - "math" - "time" - - "github.com/u-root/uio/uio" -) - -// MaxLeaseTime is the maximum lease time that can be encoded. -var MaxLeaseTime = math.MaxUint32 * time.Second - -// Duration implements the IP address lease time option described by RFC 2132, -// Section 9.2. -type Duration time.Duration - -// FromBytes parses a duration from a byte stream according to RFC 2132, Section 9.2. -func (d *Duration) FromBytes(data []byte) error { - buf := uio.NewBigEndianBuffer(data) - *d = Duration(time.Duration(buf.Read32()) * time.Second) - return buf.FinError() -} - -// ToBytes returns a serialized stream of bytes for this option. -func (d Duration) ToBytes() []byte { - buf := uio.NewBigEndianBuffer(nil) - buf.Write32(uint32(time.Duration(d) / time.Second)) - return buf.Data() -} - -// String returns a human-readable string for this option. -func (d Duration) String() string { - return time.Duration(d).String() -} - -// OptIPAddressLeaseTime returns a new IP address lease time option. -// -// The IP address lease time option is described by RFC 2132, Section 9.2. -func OptIPAddressLeaseTime(d time.Duration) Option { - return Option{Code: OptionIPAddressLeaseTime, Value: Duration(d)} -} - -// The IP address renew time option as described by RFC 2132, Section 9.11. -func OptRenewTimeValue(d time.Duration) Option { - return Option{Code: OptionRenewTimeValue, Value: Duration(d)} -} - -// The IP address rebinding time option as described by RFC 2132, Section 9.12. -func OptRebindingTimeValue(d time.Duration) Option { - return Option{Code: OptionRebindingTimeValue, Value: Duration(d)} -} - -// The IPv6-Only Preferred option is described by RFC 8925, Section 3.1 -func OptIPv6OnlyPreferred(d time.Duration) Option { - return Option{Code: OptionIPv6OnlyPreferred, Value: Duration(d)} -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_generic.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_generic.go deleted file mode 100644 index a54cdeb735..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_generic.go +++ /dev/null @@ -1,27 +0,0 @@ -package dhcpv4 - -import ( - "fmt" -) - -// OptionGeneric is an option that only contains the option code and associated -// data. Every option that does not have a specific implementation will fall -// back to this option. -type OptionGeneric struct { - Data []byte -} - -// ToBytes returns a serialized generic option as a slice of bytes. -func (o OptionGeneric) ToBytes() []byte { - return o.Data -} - -// String returns a human-readable representation of a generic option. -func (o OptionGeneric) String() string { - return fmt.Sprintf("%v", o.Data) -} - -// OptGeneric returns a generic option. -func OptGeneric(code OptionCode, value []byte) Option { - return Option{Code: code, Value: OptionGeneric{value}} -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_ip.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_ip.go deleted file mode 100644 index c573631dc5..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_ip.go +++ /dev/null @@ -1,62 +0,0 @@ -package dhcpv4 - -import ( - "net" - - "github.com/u-root/uio/uio" -) - -// IP implements DHCPv4 IP option marshaling and unmarshaling as described by -// RFC 2132, Sections 5.3, 9.1, 9.7, and others. -type IP net.IP - -// FromBytes parses an IP from data in binary form. -func (i *IP) FromBytes(data []byte) error { - buf := uio.NewBigEndianBuffer(data) - *i = IP(buf.CopyN(net.IPv4len)) - return buf.FinError() -} - -// ToBytes returns a serialized stream of bytes for this option. -func (i IP) ToBytes() []byte { - return []byte(net.IP(i).To4()) -} - -// String returns a human-readable IP. -func (i IP) String() string { - return net.IP(i).String() -} - -// GetIP returns code out of o parsed as an IP. -func GetIP(code OptionCode, o Options) net.IP { - v := o.Get(code) - if v == nil { - return nil - } - var ip IP - if err := ip.FromBytes(v); err != nil { - return nil - } - return net.IP(ip) -} - -// OptBroadcastAddress returns a new DHCPv4 Broadcast Address option. -// -// The broadcast address option is described in RFC 2132, Section 5.3. -func OptBroadcastAddress(ip net.IP) Option { - return Option{Code: OptionBroadcastAddress, Value: IP(ip)} -} - -// OptRequestedIPAddress returns a new DHCPv4 Requested IP Address option. -// -// The requested IP address option is described by RFC 2132, Section 9.1. -func OptRequestedIPAddress(ip net.IP) Option { - return Option{Code: OptionRequestedIPAddress, Value: IP(ip)} -} - -// OptServerIdentifier returns a new DHCPv4 Server Identifier option. -// -// The server identifier option is described by RFC 2132, Section 9.7. -func OptServerIdentifier(ip net.IP) Option { - return Option{Code: OptionServerIdentifier, Value: IP(ip)} -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_ips.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_ips.go deleted file mode 100644 index e0ee4cd0bb..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_ips.go +++ /dev/null @@ -1,103 +0,0 @@ -package dhcpv4 - -import ( - "fmt" - "net" - "strings" - - "github.com/u-root/uio/uio" -) - -// IPs are IPv4 addresses from a DHCP packet as used and specified by options -// in RFC 2132, Sections 3.5 through 3.13, 8.2, 8.3, 8.5, 8.6, 8.9, and 8.10. -// -// IPs implements the OptionValue type. -type IPs []net.IP - -// FromBytes parses an IPv4 address from a DHCP packet as used and specified by -// options in RFC 2132, Sections 3.5 through 3.13, 8.2, 8.3, 8.5, 8.6, 8.9, and -// 8.10. -func (i *IPs) FromBytes(data []byte) error { - buf := uio.NewBigEndianBuffer(data) - if buf.Len() == 0 { - return fmt.Errorf("IP DHCP options must always list at least one IP") - } - - *i = make(IPs, 0, buf.Len()/net.IPv4len) - for buf.Has(net.IPv4len) { - *i = append(*i, net.IP(buf.CopyN(net.IPv4len))) - } - return buf.FinError() -} - -// ToBytes marshals IPv4 addresses to a DHCP packet as specified by RFC 2132, -// Section 3.5 et al. -func (i IPs) ToBytes() []byte { - buf := uio.NewBigEndianBuffer(nil) - for _, ip := range i { - buf.WriteBytes(ip.To4()) - } - return buf.Data() -} - -// String returns a human-readable representation of a list of IPs. -func (i IPs) String() string { - s := make([]string, 0, len(i)) - for _, ip := range i { - s = append(s, ip.String()) - } - return strings.Join(s, ", ") -} - -// GetIPs parses a list of IPs from code in o. -func GetIPs(code OptionCode, o Options) []net.IP { - v := o.Get(code) - if v == nil { - return nil - } - var ips IPs - if err := ips.FromBytes(v); err != nil { - return nil - } - return []net.IP(ips) -} - -// OptRouter returns a new DHCPv4 Router option. -// -// The Router option is described by RFC 2132, Section 3.5. -func OptRouter(routers ...net.IP) Option { - return Option{ - Code: OptionRouter, - Value: IPs(routers), - } -} - -// WithRouter updates a packet with the DHCPv4 Router option. -func WithRouter(routers ...net.IP) Modifier { - return WithOption(OptRouter(routers...)) -} - -// OptNTPServers returns a new DHCPv4 NTP Server option. -// -// The NTP servers option is described by RFC 2132, Section 8.3. -func OptNTPServers(ntpServers ...net.IP) Option { - return Option{ - Code: OptionNTPServers, - Value: IPs(ntpServers), - } -} - -// OptDNS returns a new DHCPv4 Domain Name Server option. -// -// The DNS server option is described by RFC 2132, Section 3.8. -func OptDNS(servers ...net.IP) Option { - return Option{ - Code: OptionDomainNameServer, - Value: IPs(servers), - } -} - -// WithDNS modifies a packet with the DHCPv4 Domain Name Server option. -func WithDNS(servers ...net.IP) Modifier { - return WithOption(OptDNS(servers...)) -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_maximum_dhcp_message_size.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_maximum_dhcp_message_size.go deleted file mode 100644 index f283023830..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_maximum_dhcp_message_size.go +++ /dev/null @@ -1,50 +0,0 @@ -package dhcpv4 - -import ( - "fmt" - - "github.com/u-root/uio/uio" -) - -// Uint16 implements encoding and decoding functions for a uint16 as used in -// RFC 2132, Section 9.10. -type Uint16 uint16 - -// ToBytes returns a serialized stream of bytes for this option. -func (o Uint16) ToBytes() []byte { - buf := uio.NewBigEndianBuffer(nil) - buf.Write16(uint16(o)) - return buf.Data() -} - -// String returns a human-readable string for this option. -func (o Uint16) String() string { - return fmt.Sprintf("%d", uint16(o)) -} - -// FromBytes decodes data into o as per RFC 2132, Section 9.10. -func (o *Uint16) FromBytes(data []byte) error { - buf := uio.NewBigEndianBuffer(data) - *o = Uint16(buf.Read16()) - return buf.FinError() -} - -// GetUint16 parses a uint16 from code in o. -func GetUint16(code OptionCode, o Options) (uint16, error) { - v := o.Get(code) - if v == nil { - return 0, fmt.Errorf("option not present") - } - var u Uint16 - if err := u.FromBytes(v); err != nil { - return 0, err - } - return uint16(u), nil -} - -// OptMaxMessageSize returns a new DHCP Maximum Message Size option. -// -// The Maximum DHCP Message Size option is described by RFC 2132, Section 9.10. -func OptMaxMessageSize(size uint16) Option { - return Option{Code: OptionMaximumDHCPMessageSize, Value: Uint16(size)} -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_message_type.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_message_type.go deleted file mode 100644 index 1f4c14f207..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_message_type.go +++ /dev/null @@ -1,6 +0,0 @@ -package dhcpv4 - -// OptMessageType returns a new DHCPv4 Message Type option. -func OptMessageType(m MessageType) Option { - return Option{Code: OptionDHCPMessageType, Value: m} -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_misc.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_misc.go deleted file mode 100644 index e91b34d80b..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_misc.go +++ /dev/null @@ -1,23 +0,0 @@ -package dhcpv4 - -import ( - "github.com/insomniacslk/dhcp/iana" - "github.com/insomniacslk/dhcp/rfc1035label" -) - -// OptDomainSearch returns a new domain search option. -// -// The domain search option is described by RFC 3397, Section 2. -func OptDomainSearch(labels *rfc1035label.Labels) Option { - return Option{Code: OptionDNSDomainSearchList, Value: labels} -} - -// OptClientArch returns a new Client System Architecture Type option. -func OptClientArch(archs ...iana.Arch) Option { - return Option{Code: OptionClientSystemArchitectureType, Value: iana.Archs(archs)} -} - -// OptClientIdentifier returns a new Client Identifier option. -func OptClientIdentifier(ident []byte) Option { - return OptGeneric(OptionClientIdentifier, ident) -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_parameter_request_list.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_parameter_request_list.go deleted file mode 100644 index 72b447cb81..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_parameter_request_list.go +++ /dev/null @@ -1,72 +0,0 @@ -package dhcpv4 - -import ( - "sort" - "strings" - - "github.com/u-root/uio/uio" -) - -// OptionCodeList is a list of DHCP option codes. -type OptionCodeList []OptionCode - -// Has returns whether c is in the list. -func (ol OptionCodeList) Has(c OptionCode) bool { - for _, code := range ol { - if code == c { - return true - } - } - return false -} - -// Add adds option codes in cs to ol. -func (ol *OptionCodeList) Add(cs ...OptionCode) { - for _, c := range cs { - if !ol.Has(c) { - *ol = append(*ol, c) - } - } -} - -func (ol OptionCodeList) sort() { - sort.Slice(ol, func(i, j int) bool { return ol[i].Code() < ol[j].Code() }) -} - -// String returns a human-readable string for the option names. -func (ol OptionCodeList) String() string { - var names []string - ol.sort() - for _, code := range ol { - names = append(names, code.String()) - } - return strings.Join(names, ", ") -} - -// ToBytes returns a serialized stream of bytes for this option as defined by -// RFC 2132, Section 9.8. -func (ol OptionCodeList) ToBytes() []byte { - buf := uio.NewBigEndianBuffer(nil) - for _, req := range ol { - buf.Write8(req.Code()) - } - return buf.Data() -} - -// FromBytes parses a byte stream for this option as described by RFC 2132, -// Section 9.8. -func (ol *OptionCodeList) FromBytes(data []byte) error { - buf := uio.NewBigEndianBuffer(data) - *ol = make(OptionCodeList, 0, buf.Len()) - for buf.Has(1) { - *ol = append(*ol, optionCode(buf.Read8())) - } - return buf.FinError() -} - -// OptParameterRequestList returns a new DHCPv4 Parameter Request List. -// -// The parameter request list option is described by RFC 2132, Section 9.8. -func OptParameterRequestList(codes ...OptionCode) Option { - return Option{Code: OptionParameterRequestList, Value: OptionCodeList(codes)} -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_relay_agent_information.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_relay_agent_information.go deleted file mode 100644 index 4f974dd933..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_relay_agent_information.go +++ /dev/null @@ -1,92 +0,0 @@ -package dhcpv4 - -import ( - "fmt" -) - -// RelayOptions is like Options, but stringifies using the Relay Agent Specific -// option space. -type RelayOptions struct { - Options -} - -var relayHumanizer = OptionHumanizer{ - ValueHumanizer: func(code OptionCode, data []byte) fmt.Stringer { - return raiSubOptionValue{data} - }, - CodeHumanizer: func(c uint8) OptionCode { - return raiSubOptionCode(c) - }, -} - -// String prints the contained options using Relay Agent-specific option code parsing. -func (r RelayOptions) String() string { - return "\n" + r.Options.ToString(relayHumanizer) -} - -// FromBytes parses relay agent options from data. -func (r *RelayOptions) FromBytes(data []byte) error { - r.Options = make(Options) - return r.Options.FromBytes(data) -} - -// OptRelayAgentInfo returns a new DHCP Relay Agent Info option. -// -// The relay agent info option is described by RFC 3046. -func OptRelayAgentInfo(o ...Option) Option { - return Option{Code: OptionRelayAgentInformation, Value: RelayOptions{OptionsFromList(o...)}} -} - -type raiSubOptionValue struct { - val []byte -} - -func (rv raiSubOptionValue) String() string { - return fmt.Sprintf("%s (%v)", string(rv.val), rv.val) -} - -type raiSubOptionCode uint8 - -func (o raiSubOptionCode) Code() uint8 { - return uint8(o) -} - -func (o raiSubOptionCode) String() string { - if s, ok := raiSubOptionCodeToString[o]; ok { - return s - } - return fmt.Sprintf("unknown (%d)", o) -} - -// Option 82 Relay Agention Information Sub Options -const ( - AgentCircuitIDSubOption raiSubOptionCode = 1 // RFC 3046 - AgentRemoteIDSubOption raiSubOptionCode = 2 // RFC 3046 - DOCSISDeviceClassSubOption raiSubOptionCode = 4 // RFC 3256 - LinkSelectionSubOption raiSubOptionCode = 5 // RFC 3527 - SubscriberIDSubOption raiSubOptionCode = 6 // RFC 3993 - RADIUSAttributesSubOption raiSubOptionCode = 7 // RFC 4014 - AuthenticationSubOption raiSubOptionCode = 8 // RFC 4030 - VendorSpecificInformationSubOption raiSubOptionCode = 9 // RFC 4243 - RelayAgentFlagsSubOption raiSubOptionCode = 10 // RFC 5010 - ServerIdentifierOverrideSubOption raiSubOptionCode = 11 // RFC 5107 - RelaySourcePortSubOption raiSubOptionCode = 19 // RFC 8357 - VirtualSubnetSelectionSubOption raiSubOptionCode = 151 // RFC 6607 - VirtualSubnetSelectionControlSubOption raiSubOptionCode = 152 // RFC 6607 -) - -var raiSubOptionCodeToString = map[raiSubOptionCode]string{ - AgentCircuitIDSubOption: "Agent Circuit ID Sub-option", - AgentRemoteIDSubOption: "Agent Remote ID Sub-option", - DOCSISDeviceClassSubOption: "DOCSIS Device Class Sub-option", - LinkSelectionSubOption: "Link Selection Sub-option", - SubscriberIDSubOption: "Subscriber ID Sub-option", - RADIUSAttributesSubOption: "RADIUS Attributes Sub-option", - AuthenticationSubOption: "Authentication Sub-option", - VendorSpecificInformationSubOption: "Vendor Specific Sub-option", - RelayAgentFlagsSubOption: "Relay Agent Flags Sub-option", - ServerIdentifierOverrideSubOption: "Server Identifier Override Sub-option", - RelaySourcePortSubOption: "Relay Source Port Sub-option", - VirtualSubnetSelectionSubOption: "Virtual Subnet Selection Sub-option", - VirtualSubnetSelectionControlSubOption: "Virtual Subnet Selection Control Sub-option", -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_routes.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_routes.go deleted file mode 100644 index 8516629cfe..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_routes.go +++ /dev/null @@ -1,104 +0,0 @@ -package dhcpv4 - -import ( - "fmt" - "net" - "strings" - - "github.com/u-root/uio/uio" -) - -// Route is a classless static route as per RFC 3442. -type Route struct { - // Dest is the destination network. - Dest *net.IPNet - - // Router is the router to use for the given destination network. - Router net.IP -} - -// Marshal implements uio.Marshaler. -// -// Format described in RFC 3442: -// -// -// -// -func (r Route) Marshal(buf *uio.Lexer) { - ones, _ := r.Dest.Mask.Size() - buf.Write8(uint8(ones)) - - // Only write the non-zero octets. - dstLen := (ones + 7) / 8 - buf.WriteBytes(r.Dest.IP.To4()[:dstLen]) - - buf.WriteBytes(r.Router.To4()) -} - -// Unmarshal implements uio.Unmarshaler. -func (r *Route) Unmarshal(buf *uio.Lexer) error { - maskSize := buf.Read8() - if maskSize > 32 { - return fmt.Errorf("invalid mask length %d in route option", maskSize) - } - r.Dest = &net.IPNet{ - IP: make([]byte, net.IPv4len), - Mask: net.CIDRMask(int(maskSize), 32), - } - - dstLen := (maskSize + 7) / 8 - buf.ReadBytes(r.Dest.IP[:dstLen]) - - r.Router = buf.CopyN(net.IPv4len) - return buf.Error() -} - -// String prints the destination network and router IP. -func (r *Route) String() string { - return fmt.Sprintf("route to %s via %s", r.Dest, r.Router) -} - -// Routes is a collection of network routes. -type Routes []*Route - -// FromBytes parses routes from a set of bytes as described by RFC 3442. -func (r *Routes) FromBytes(p []byte) error { - buf := uio.NewBigEndianBuffer(p) - for buf.Has(1) { - var route Route - if err := route.Unmarshal(buf); err != nil { - return err - } - *r = append(*r, &route) - } - return buf.FinError() -} - -// ToBytes marshals a set of routes as described by RFC 3442. -func (r Routes) ToBytes() []byte { - buf := uio.NewBigEndianBuffer(nil) - for _, route := range r { - route.Marshal(buf) - } - return buf.Data() -} - -// String prints all routes. -func (r Routes) String() string { - s := make([]string, 0, len(r)) - for _, route := range r { - s = append(s, route.String()) - } - return strings.Join(s, "; ") -} - -// OptClasslessStaticRoute returns a new DHCPv4 Classless Static Route -// option. -// -// The Classless Static Route option is described by RFC 3442. -func OptClasslessStaticRoute(routes ...*Route) Option { - return Option{ - Code: OptionClasslessStaticRoute, - Value: Routes(routes), - } -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_string.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_string.go deleted file mode 100644 index eb0cc2b0d6..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_string.go +++ /dev/null @@ -1,84 +0,0 @@ -package dhcpv4 - -// String represents an option encapsulating a string in IPv4 DHCP. -// -// This representation is shared by multiple options specified by RFC 2132, -// Sections 3.14, 3.16, 3.17, 3.19, and 3.20. -type String string - -// ToBytes returns a serialized stream of bytes for this option. -func (o String) ToBytes() []byte { - return []byte(o) -} - -// String returns a human-readable string. -func (o String) String() string { - return string(o) -} - -// FromBytes parses a serialized stream of bytes into o. -func (o *String) FromBytes(data []byte) error { - *o = String(string(data)) - return nil -} - -// GetString parses an RFC 2132 string from o[code]. -func GetString(code OptionCode, o Options) string { - v := o.Get(code) - if v == nil { - return "" - } - return string(v) -} - -// OptDomainName returns a new DHCPv4 Domain Name option. -// -// The Domain Name option is described by RFC 2132, Section 3.17. -func OptDomainName(name string) Option { - return Option{Code: OptionDomainName, Value: String(name)} -} - -// OptHostName returns a new DHCPv4 Host Name option. -// -// The Host Name option is described by RFC 2132, Section 3.14. -func OptHostName(name string) Option { - return Option{Code: OptionHostName, Value: String(name)} -} - -// OptRootPath returns a new DHCPv4 Root Path option. -// -// The Root Path option is described by RFC 2132, Section 3.19. -func OptRootPath(name string) Option { - return Option{Code: OptionRootPath, Value: String(name)} -} - -// OptBootFileName returns a new DHCPv4 Boot File Name option. -// -// The Bootfile Name option is described by RFC 2132, Section 9.5. -func OptBootFileName(name string) Option { - return Option{Code: OptionBootfileName, Value: String(name)} -} - -// OptTFTPServerName returns a new DHCPv4 TFTP Server Name option. -// -// The TFTP Server Name option is described by RFC 2132, Section 9.4. -func OptTFTPServerName(name string) Option { - return Option{Code: OptionTFTPServerName, Value: String(name)} -} - -// OptClassIdentifier returns a new DHCPv4 Class Identifier option. -// -// The Vendor Class Identifier option is described by RFC 2132, Section 9.13. -func OptClassIdentifier(name string) Option { - return Option{Code: OptionClassIdentifier, Value: String(name)} -} - -// OptUserClass returns a new DHCPv4 User Class option. -func OptUserClass(name string) Option { - return Option{Code: OptionUserClassInformation, Value: String(name)} -} - -// OptMessage returns a new DHCPv4 (Error) Message option. -func OptMessage(msg string) Option { - return Option{Code: OptionMessage, Value: String(msg)} -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_strings.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_strings.go deleted file mode 100644 index a29baa5045..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_strings.go +++ /dev/null @@ -1,55 +0,0 @@ -package dhcpv4 - -import ( - "fmt" - "strings" - - "github.com/u-root/uio/uio" -) - -// Strings represents an option encapsulating a list of strings in IPv4 DHCP as -// specified in RFC 3004 -// -// Strings implements the OptionValue type. -type Strings []string - -// FromBytes parses Strings from a DHCP packet as specified by RFC 3004. -func (o *Strings) FromBytes(data []byte) error { - buf := uio.NewBigEndianBuffer(data) - if buf.Len() == 0 { - return fmt.Errorf("Strings DHCP option must always list at least one String") - } - - *o = make(Strings, 0) - for buf.Has(1) { - ucLen := buf.Read8() - if ucLen == 0 { - return fmt.Errorf("DHCP Strings must have length greater than 0") - } - *o = append(*o, string(buf.CopyN(int(ucLen)))) - } - return buf.FinError() -} - -// ToBytes marshals Strings to a DHCP packet as specified by RFC 3004. -func (o Strings) ToBytes() []byte { - buf := uio.NewBigEndianBuffer(nil) - for _, uc := range o { - buf.Write8(uint8(len(uc))) - buf.WriteBytes([]byte(uc)) - } - return buf.Data() -} - -// String returns a human-readable representation of a list of Strings. -func (o Strings) String() string { - return strings.Join(o, ", ") -} - -// OptRFC3004UserClass returns a new user class option according to RFC 3004. -func OptRFC3004UserClass(v []string) Option { - return Option{ - Code: OptionUserClassInformation, - Value: Strings(v), - } -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_subnet_mask.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_subnet_mask.go deleted file mode 100644 index a2f9f62f3b..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_subnet_mask.go +++ /dev/null @@ -1,40 +0,0 @@ -package dhcpv4 - -import ( - "net" - - "github.com/u-root/uio/uio" -) - -// IPMask represents an option encapsulating the subnet mask. -// -// This option implements the subnet mask option in RFC 2132, Section 3.3. -type IPMask net.IPMask - -// ToBytes returns a serialized stream of bytes for this option. -func (im IPMask) ToBytes() []byte { - if len(im) > net.IPv4len { - return im[:net.IPv4len] - } - return im -} - -// String returns a human-readable string. -func (im IPMask) String() string { - return net.IPMask(im).String() -} - -// FromBytes parses im from data per RFC 2132. -func (im *IPMask) FromBytes(data []byte) error { - buf := uio.NewBigEndianBuffer(data) - *im = IPMask(buf.CopyN(net.IPv4len)) - return buf.FinError() -} - -// OptSubnetMask returns a new DHCPv4 SubnetMask option per RFC 2132, Section 3.3. -func OptSubnetMask(mask net.IPMask) Option { - return Option{ - Code: OptionSubnetMask, - Value: IPMask(mask), - } -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_vivc.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_vivc.go deleted file mode 100644 index 3900bf024e..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/option_vivc.go +++ /dev/null @@ -1,65 +0,0 @@ -package dhcpv4 - -import ( - "bytes" - "fmt" - - "github.com/insomniacslk/dhcp/iana" - "github.com/u-root/uio/uio" -) - -// VIVCIdentifier implements the vendor-identifying vendor class option -// described by RFC 3925. -type VIVCIdentifier struct { - // EntID is the enterprise ID. - EntID iana.EnterpriseID - Data []byte -} - -// OptVIVC returns a new vendor-identifying vendor class option. -// -// The option is described by RFC 3925. -func OptVIVC(identifiers ...VIVCIdentifier) Option { - return Option{ - Code: OptionVendorIdentifyingVendorClass, - Value: VIVCIdentifiers(identifiers), - } -} - -// VIVCIdentifiers implements encoding and decoding methods for a DHCP option -// described in RFC 3925. -type VIVCIdentifiers []VIVCIdentifier - -// FromBytes parses data into ids per RFC 3925. -func (ids *VIVCIdentifiers) FromBytes(data []byte) error { - buf := uio.NewBigEndianBuffer(data) - for buf.Has(5) { - entID := iana.EnterpriseID(buf.Read32()) - idLen := int(buf.Read8()) - *ids = append(*ids, VIVCIdentifier{EntID: entID, Data: buf.CopyN(idLen)}) - } - return buf.FinError() -} - -// ToBytes returns a serialized stream of bytes for this option. -func (ids VIVCIdentifiers) ToBytes() []byte { - buf := uio.NewBigEndianBuffer(nil) - for _, id := range ids { - buf.Write32(uint32(id.EntID)) - buf.Write8(uint8(len(id.Data))) - buf.WriteBytes(id.Data) - } - return buf.Data() -} - -// String returns a human-readable string for this option. -func (ids VIVCIdentifiers) String() string { - if len(ids) == 0 { - return "" - } - buf := bytes.Buffer{} - for _, id := range ids { - fmt.Fprintf(&buf, " %d:'%s',", id.EntID, id.Data) - } - return buf.String()[1 : buf.Len()-1] -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/options.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/options.go deleted file mode 100644 index 1e5fcbdba7..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/options.go +++ /dev/null @@ -1,390 +0,0 @@ -package dhcpv4 - -import ( - "errors" - "fmt" - "io" - "math" - "sort" - "strings" - - "github.com/insomniacslk/dhcp/iana" - "github.com/insomniacslk/dhcp/rfc1035label" - "github.com/u-root/uio/uio" -) - -var ( - // ErrShortByteStream is an error that is thrown any time a short byte stream is - // detected during option parsing. - ErrShortByteStream = errors.New("short byte stream") - - // ErrZeroLengthByteStream is an error that is thrown any time a zero-length - // byte stream is encountered. - ErrZeroLengthByteStream = errors.New("zero-length byte stream") - - // ErrInvalidOptions is returned when invalid options data is - // encountered during parsing. The data could report an incorrect - // length or have trailing bytes which are not part of the option. - ErrInvalidOptions = errors.New("invalid options data") -) - -// OptionValue is an interface that all DHCP v4 options adhere to. -type OptionValue interface { - ToBytes() []byte - String() string -} - -// Option is a DHCPv4 option and consists of a 1-byte option code and a value -// stream of bytes. -// -// The value is to be interpreted based on the option code. -type Option struct { - Code OptionCode - Value OptionValue -} - -// String returns a human-readable version of this option. -func (o Option) String() string { - v := o.Value.String() - if strings.Contains(v, "\n") { - return fmt.Sprintf("%s:\n%s", o.Code, v) - } - return fmt.Sprintf("%s: %s", o.Code, v) -} - -// Options is a collection of options. -type Options map[uint8][]byte - -// OptionsFromList adds all given options to an options map. -func OptionsFromList(o ...Option) Options { - opts := make(Options) - for _, opt := range o { - opts.Update(opt) - } - return opts -} - -// Get will attempt to get all options that match a DHCPv4 option -// from its OptionCode. If the option was not found it will return an -// empty list. -// -// According to RFC 3396, options that are specified more than once are -// concatenated, and hence this should always just return one option. This -// currently returns a list to be API compatible. -func (o Options) Get(code OptionCode) []byte { - return o[code.Code()] -} - -// Has checks whether o has the given opcode. -func (o Options) Has(opcode OptionCode) bool { - _, ok := o[opcode.Code()] - return ok -} - -// Del deletes the option matching the option code. -func (o Options) Del(opcode OptionCode) { - delete(o, opcode.Code()) -} - -// Update updates the existing options with the passed option, adding it -// at the end if not present already -func (o Options) Update(option Option) { - o[option.Code.Code()] = option.Value.ToBytes() -} - -// ToBytes makes Options usable as an OptionValue as well. -// -// Used in the case of vendor-specific and relay agent options. -func (o Options) ToBytes() []byte { - return uio.ToBigEndian(o) -} - -// FromBytes parses a sequence of bytes until the end and builds a list of -// options from it. -// -// The sequence should not contain the DHCP magic cookie. -// -// Returns an error if any invalid option or length is found. -func (o Options) FromBytes(data []byte) error { - return o.fromBytesCheckEnd(data, false) -} - -const ( - optPad = 0 - optAgentInfo = 82 - optEnd = 255 -) - -// FromBytesCheckEnd parses Options from byte sequences using the -// parsing function that is passed in as a paremeter -func (o Options) fromBytesCheckEnd(data []byte, checkEndOption bool) error { - if len(data) == 0 { - return nil - } - buf := uio.NewBigEndianBuffer(data) - - var end bool - for buf.Len() >= 1 { - // 1 byte: option code - // 1 byte: option length n - // n bytes: data - code := buf.Read8() - - if code == optPad { - continue - } else if code == optEnd { - end = true - break - } - length := int(buf.Read8()) - - // N bytes: option data - data := buf.Consume(length) - if data == nil { - return fmt.Errorf("error collecting options: %v", buf.Error()) - } - data = data[:length:length] - - // RFC 2131, Section 4.1 "Options may appear only once, [...]. - // The client concatenates the values of multiple instances of - // the same option into a single parameter list for - // configuration." - // - // See also RFC 3396 for concatenation order and options longer - // than 255 bytes. - o[code] = append(o[code], data...) - } - - // If we never read the End option, the sender of this packet screwed - // up. - if !end && checkEndOption { - return io.ErrUnexpectedEOF - } - - // Any bytes left must be padding. - var pad uint8 - for buf.Len() >= 1 { - pad = buf.Read8() - if pad != optPad && pad != optEnd { - return ErrInvalidOptions - } - } - return nil -} - -// sortedKeys returns an ordered slice of option keys from the Options map, for -// use in serializing options to binary. -func (o Options) sortedKeys() []int { - // Send all values for a given key - var codes []int - var hasOptAgentInfo, hasOptEnd bool - for k := range o { - // RFC 3046 section 2.1 states that option 82 SHALL come last (ignoring End). - if k == optAgentInfo { - hasOptAgentInfo = true - continue - } - if k == optEnd { - hasOptEnd = true - continue - } - codes = append(codes, int(k)) - } - - sort.Ints(codes) - - if hasOptAgentInfo { - codes = append(codes, optAgentInfo) - } - if hasOptEnd { - codes = append(codes, optEnd) - } - return codes -} - -// Marshal writes options binary representations to b. -func (o Options) Marshal(b *uio.Lexer) { - for _, c := range o.sortedKeys() { - code := uint8(c) - // Even if the End option is in there, don't marshal it until - // the end. - // Don't write padding either, since the options are sorted - // it would always be written first which isn't useful - if code == optEnd || code == optPad { - continue - } - - data := o[code] - - // Ensure even 0-length options are written out - if len(data) == 0 { - b.Write8(code) - b.Write8(0) - continue - } - // RFC 3396: If more than 256 bytes of data are given, the - // option is simply listed multiple times. - for len(data) > 0 { - // 1 byte: option code - b.Write8(code) - - n := len(data) - if n > math.MaxUint8 { - n = math.MaxUint8 - } - - // 1 byte: option length - b.Write8(uint8(n)) - - // N bytes: option data - b.WriteBytes(data[:n]) - data = data[n:] - } - } -} - -// String prints options using DHCP-specified option codes. -func (o Options) String() string { - return o.ToString(dhcpHumanizer) -} - -// Summary prints options in human-readable values. -// -// Summary uses vendorParser to interpret the OptionVendorSpecificInformation option. -func (o Options) Summary(vendorDecoder OptionDecoder) string { - return o.ToString(OptionHumanizer{ - ValueHumanizer: parserFor(vendorDecoder), - CodeHumanizer: func(c uint8) OptionCode { - return optionCode(c) - }, - }) -} - -// OptionParser gives a human-legible interpretation of data for the given option code. -type OptionParser func(code OptionCode, data []byte) fmt.Stringer - -// OptionHumanizer is used to interpret a set of Options for their option code -// name and values. -// -// There should be separate OptionHumanizers for each Option "space": DHCP, -// BSDP, Relay Agent Info, and others. -type OptionHumanizer struct { - ValueHumanizer OptionParser - CodeHumanizer func(code uint8) OptionCode -} - -// Stringify returns a human-readable interpretation of the option code and its -// associated data. -func (oh OptionHumanizer) Stringify(code uint8, data []byte) string { - c := oh.CodeHumanizer(code) - val := oh.ValueHumanizer(c, data) - return fmt.Sprintf("%s: %s", c, val) -} - -// dhcpHumanizer humanizes the set of DHCP option codes. -var dhcpHumanizer = OptionHumanizer{ - ValueHumanizer: parseOption, - CodeHumanizer: func(c uint8) OptionCode { - return optionCode(c) - }, -} - -// ToString uses parse to parse options into human-readable values. -func (o Options) ToString(humanizer OptionHumanizer) string { - var ret string - for _, c := range o.sortedKeys() { - code := uint8(c) - v := o[code] - optString := humanizer.Stringify(code, v) - // If this option has sub structures, offset them accordingly. - if strings.Contains(optString, "\n") { - optString = strings.Replace(optString, "\n ", "\n ", -1) - } - ret += fmt.Sprintf(" %v\n", optString) - } - return ret -} - -func parseOption(code OptionCode, data []byte) fmt.Stringer { - return parserFor(nil)(code, data) -} - -func parserFor(vendorParser OptionDecoder) OptionParser { - return func(code OptionCode, data []byte) fmt.Stringer { - return getOption(code, data, vendorParser) - } -} - -// OptionDecoder can decode a byte stream into a human-readable option. -type OptionDecoder interface { - fmt.Stringer - FromBytes([]byte) error -} - -func getOption(code OptionCode, data []byte, vendorDecoder OptionDecoder) fmt.Stringer { - var d OptionDecoder - switch code { - case OptionRouter, OptionDomainNameServer, OptionNTPServers, OptionServerIdentifier: - d = &IPs{} - - case OptionBroadcastAddress, OptionRequestedIPAddress: - d = &IP{} - - case OptionClientSystemArchitectureType: - d = &iana.Archs{} - - case OptionSubnetMask: - d = &IPMask{} - - case OptionDHCPMessageType: - var mt MessageType - d = &mt - - case OptionParameterRequestList: - d = &OptionCodeList{} - - case OptionHostName, OptionDomainName, OptionRootPath, - OptionClassIdentifier, OptionTFTPServerName, OptionBootfileName: - var s String - d = &s - - case OptionRelayAgentInformation: - d = &RelayOptions{} - - case OptionDNSDomainSearchList: - d = &rfc1035label.Labels{} - - case OptionIPAddressLeaseTime, OptionRenewTimeValue, OptionRebindingTimeValue, OptionIPv6OnlyPreferred: - var dur Duration - d = &dur - - case OptionMaximumDHCPMessageSize: - var u Uint16 - d = &u - - case OptionUserClassInformation: - var s Strings - d = &s - if s.FromBytes(data) != nil { - var s String - d = &s - } - - case OptionAutoConfigure: - var a AutoConfiguration - d = &a - - case OptionVendorIdentifyingVendorClass: - d = &VIVCIdentifiers{} - - case OptionVendorSpecificInformation: - d = vendorDecoder - - case OptionClasslessStaticRoute: - d = &Routes{} - } - if d != nil && d.FromBytes(data) == nil { - return d - } - return OptionGeneric{data} -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/server4/conn_unix.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/server4/conn_unix.go deleted file mode 100644 index 18dd98669a..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/server4/conn_unix.go +++ /dev/null @@ -1,69 +0,0 @@ -// +build !windows - -package server4 - -import ( - "errors" - "fmt" - "net" - "os" - - "github.com/insomniacslk/dhcp/dhcpv4" - "golang.org/x/sys/unix" -) - -// NewIPv4UDPConn returns a UDP connection bound to both the interface and port -// given based on a IPv4 DGRAM socket. The UDP connection allows broadcasting. -// -// The interface must already be configured. -func NewIPv4UDPConn(iface string, addr *net.UDPAddr) (*net.UDPConn, error) { - fd, err := unix.Socket(unix.AF_INET, unix.SOCK_DGRAM, unix.IPPROTO_UDP) - if err != nil { - return nil, fmt.Errorf("cannot get a UDP socket: %v", err) - } - f := os.NewFile(uintptr(fd), "") - // net.FilePacketConn dups the FD, so we have to close this in any case. - defer f.Close() - - // Allow broadcasting. - if err := unix.SetsockoptInt(fd, unix.SOL_SOCKET, unix.SO_BROADCAST, 1); err != nil { - return nil, fmt.Errorf("cannot set broadcasting on socket: %v", err) - } - // Allow reusing the addr to aid debugging. - if err := unix.SetsockoptInt(fd, unix.SOL_SOCKET, unix.SO_REUSEADDR, 1); err != nil { - return nil, fmt.Errorf("cannot set reuseaddr on socket: %v", err) - } - // Allow reusing the port to aid debugging and testing. - if err := unix.SetsockoptInt(fd, unix.SOL_SOCKET, unix.SO_REUSEPORT, 1); err != nil { - return nil, fmt.Errorf("cannot set reuseport on socket: %v", err) - } - if len(iface) != 0 { - // Bind directly to the interface. - if err := dhcpv4.BindToInterface(fd, iface); err != nil { - return nil, fmt.Errorf("cannot bind to interface %s: %v", iface, err) - } - } - - if addr == nil { - addr = &net.UDPAddr{Port: dhcpv4.ServerPort} - } - // Bind to the port. - saddr := unix.SockaddrInet4{Port: addr.Port} - if addr.IP != nil && addr.IP.To4() == nil { - return nil, fmt.Errorf("wrong address family (expected v4) for %s", addr.IP) - } - copy(saddr.Addr[:], addr.IP.To4()) - if err := unix.Bind(fd, &saddr); err != nil { - return nil, fmt.Errorf("cannot bind to port %d: %v", addr.Port, err) - } - - conn, err := net.FilePacketConn(f) - if err != nil { - return nil, err - } - udpconn, ok := conn.(*net.UDPConn) - if !ok { - return nil, errors.New("BUG(dhcp4): incorrect socket type, expected UDP") - } - return udpconn, nil -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/server4/conn_windows.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/server4/conn_windows.go deleted file mode 100644 index cbe9d71b2d..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/server4/conn_windows.go +++ /dev/null @@ -1,11 +0,0 @@ -package server4 - -import ( - "errors" - "net" -) - -// NewIPv4UDPConn fails on Windows. Use WithConn() to pass the connection. -func NewIPv4UDPConn(iface string, addr *net.UDPAddr) (*net.UDPConn, error) { - return nil, errors.New("not implemented on Windows") -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/server4/logger.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/server4/logger.go deleted file mode 100644 index 91ed861cdb..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/server4/logger.go +++ /dev/null @@ -1,63 +0,0 @@ -package server4 - -import ( - "github.com/insomniacslk/dhcp/dhcpv4" -) - -// Logger is a handler which will be used to output logging messages -type Logger interface { - // PrintMessage print _all_ DHCP messages - PrintMessage(prefix string, message *dhcpv4.DHCPv4) - - // Printf is use to print the rest debugging information - Printf(format string, v ...interface{}) -} - -// EmptyLogger prints nothing -type EmptyLogger struct{} - -// Printf is just a dummy function that does nothing -func (e EmptyLogger) Printf(format string, v ...interface{}) {} - -// PrintMessage is just a dummy function that does nothing -func (e EmptyLogger) PrintMessage(prefix string, message *dhcpv4.DHCPv4) {} - -// Printfer is used for actual output of the logger. For example *log.Logger is a Printfer. -type Printfer interface { - // Printf is the function for logging output. Arguments are handled in the manner of fmt.Printf. - Printf(format string, v ...interface{}) -} - -// ShortSummaryLogger is a wrapper for Printfer to implement interface Logger. -// DHCP messages are printed in the short format. -type ShortSummaryLogger struct { - // Printfer is used for actual output of the logger - Printfer -} - -// Printf prints a log message as-is via predefined Printfer -func (s ShortSummaryLogger) Printf(format string, v ...interface{}) { - s.Printfer.Printf(format, v...) -} - -// PrintMessage prints a DHCP message in the short format via predefined Printfer -func (s ShortSummaryLogger) PrintMessage(prefix string, message *dhcpv4.DHCPv4) { - s.Printf("%s: %s", prefix, message) -} - -// DebugLogger is a wrapper for Printfer to implement interface Logger. -// DHCP messages are printed in the long format. -type DebugLogger struct { - // Printfer is used for actual output of the logger - Printfer -} - -// Printf prints a log message as-is via predefined Printfer -func (d DebugLogger) Printf(format string, v ...interface{}) { - d.Printfer.Printf(format, v...) -} - -// PrintMessage prints a DHCP message in the long format via predefined Printfer -func (d DebugLogger) PrintMessage(prefix string, message *dhcpv4.DHCPv4) { - d.Printf("%s: %s", prefix, message.Summary()) -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/server4/server.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/server4/server.go deleted file mode 100644 index b7b55962ca..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/server4/server.go +++ /dev/null @@ -1,170 +0,0 @@ -// Package server4 is a basic, extensible DHCPv4 server. -// -// To use the DHCPv4 server code you have to call NewServer with two arguments: -// - an interface to listen on, -// - an address to listen on, and -// - a handler function, that will be called every time a valid DHCPv4 packet is -// received. -// -// The address to listen on is used to know IP address, port and optionally the -// scope to create and UDP socket to listen on for DHCPv4 traffic. -// -// The handler is a function that takes as input a packet connection, that can -// be used to reply to the client; a peer address, that identifies the client -// sending the request, and the DHCPv4 packet itself. Just implement your -// custom logic in the handler. -// -// Optionally, NewServer can receive options that will modify the server -// object. Some options already exist, for example WithConn. If this option is -// passed with a valid connection, the listening address argument is ignored. -// -// Example program: -// -// package main -// -// import ( -// "log" -// "net" -// -// "github.com/insomniacslk/dhcp/dhcpv4" -// "github.com/insomniacslk/dhcp/dhcpv4/server4" -// ) -// -// func handler(conn net.PacketConn, peer net.Addr, m *dhcpv4.DHCPv4) { -// // this function will just print the received DHCPv4 message, without replying -// log.Print(m.Summary()) -// } -// -// func main() { -// laddr := net.UDPAddr{ -// IP: net.ParseIP("0.0.0.0"), -// Port: 67, -// } -// server, err := server4.NewServer("eth0", &laddr, handler) -// if err != nil { -// log.Fatal(err) -// } -// -// // This never returns. If you want to do other stuff, dump it into a -// // goroutine. -// server.Serve() -// } -// -package server4 - -import ( - "log" - "net" - "os" - - "github.com/insomniacslk/dhcp/dhcpv4" -) - -// Handler is a type that defines the handler function to be called every time a -// valid DHCPv4 message is received -type Handler func(conn net.PacketConn, peer net.Addr, m *dhcpv4.DHCPv4) - -// Server represents a DHCPv4 server object -type Server struct { - conn net.PacketConn - Handler Handler - logger Logger -} - -// Serve serves requests. -func (s *Server) Serve() error { - s.logger.Printf("Server listening on %s", s.conn.LocalAddr()) - s.logger.Printf("Ready to handle requests") - - defer s.Close() - for { - rbuf := make([]byte, 4096) // FIXME this is bad - n, peer, err := s.conn.ReadFrom(rbuf) - if err != nil { - s.logger.Printf("Error reading from packet conn: %v", err) - return err - } - s.logger.Printf("Handling request from %v", peer) - - m, err := dhcpv4.FromBytes(rbuf[:n]) - if err != nil { - s.logger.Printf("Error parsing DHCPv4 request: %v", err) - continue - } - - upeer, ok := peer.(*net.UDPAddr) - if !ok { - s.logger.Printf("Not a UDP connection? Peer is %s", peer) - continue - } - // Set peer to broadcast if the client did not have an IP. - if upeer.IP == nil || upeer.IP.To4().Equal(net.IPv4zero) { - upeer = &net.UDPAddr{ - IP: net.IPv4bcast, - Port: upeer.Port, - } - } - go s.Handler(s.conn, upeer, m) - } -} - -// Close sends a termination request to the server, and closes the UDP listener. -func (s *Server) Close() error { - return s.conn.Close() -} - -// ServerOpt adds optional configuration to a server. -type ServerOpt func(s *Server) - -// WithConn configures the server with the given connection. -func WithConn(c net.PacketConn) ServerOpt { - return func(s *Server) { - s.conn = c - } -} - -// NewServer initializes and returns a new Server object -func NewServer(ifname string, addr *net.UDPAddr, handler Handler, opt ...ServerOpt) (*Server, error) { - s := &Server{ - Handler: handler, - logger: EmptyLogger{}, - } - - for _, o := range opt { - o(s) - } - if s.conn == nil { - var err error - conn, err := NewIPv4UDPConn(ifname, addr) - if err != nil { - return nil, err - } - s.conn = conn - } - return s, nil -} - -// WithSummaryLogger logs one-line DHCPv4 message summaries when sent & received. -func WithSummaryLogger() ServerOpt { - return func(s *Server) { - s.logger = ShortSummaryLogger{ - Printfer: log.New(os.Stderr, "[dhcpv4] ", log.LstdFlags), - } - } -} - -// WithDebugLogger logs multi-line full DHCPv4 messages when sent & received. -func WithDebugLogger() ServerOpt { - return func(s *Server) { - s.logger = DebugLogger{ - Printfer: log.New(os.Stderr, "[dhcpv4] ", log.LstdFlags), - } - } -} - -// WithLogger set the logger (see interface Logger). -func WithLogger(newLogger Logger) ServerOpt { - return func(s *Server) { - s.logger = newLogger - } -} diff --git a/vendor/github.com/insomniacslk/dhcp/dhcpv4/types.go b/vendor/github.com/insomniacslk/dhcp/dhcpv4/types.go deleted file mode 100644 index 80ea49cf86..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/dhcpv4/types.go +++ /dev/null @@ -1,467 +0,0 @@ -package dhcpv4 - -import ( - "fmt" - - "github.com/u-root/uio/uio" -) - -// values from http://www.networksorcery.com/enp/protocol/dhcp.htm and -// http://www.networksorcery.com/enp/protocol/bootp/options.htm - -// TransactionID represents a 4-byte DHCP transaction ID as defined in RFC 951, -// Section 3. -// -// The TransactionID is used to match DHCP replies to their original request. -type TransactionID [4]byte - -// String prints a hex transaction ID. -func (xid TransactionID) String() string { - return fmt.Sprintf("0x%x", xid[:]) -} - -// MessageType represents the possible DHCP message types - DISCOVER, OFFER, etc -type MessageType byte - -// DHCP message types -const ( - // MessageTypeNone is not a real message type, it is used by certain - // functions to signal that no explicit message type is requested - MessageTypeNone MessageType = 0 - MessageTypeDiscover MessageType = 1 - MessageTypeOffer MessageType = 2 - MessageTypeRequest MessageType = 3 - MessageTypeDecline MessageType = 4 - MessageTypeAck MessageType = 5 - MessageTypeNak MessageType = 6 - MessageTypeRelease MessageType = 7 - MessageTypeInform MessageType = 8 -) - -// ToBytes returns the serialized version of this option described by RFC 2132, -// Section 9.6. -func (m MessageType) ToBytes() []byte { - return []byte{byte(m)} -} - -// String prints a human-readable message type name. -func (m MessageType) String() string { - if s, ok := messageTypeToString[m]; ok { - return s - } - return fmt.Sprintf("unknown (%d)", byte(m)) -} - -// FromBytes reads a message type from data as described by RFC 2132, Section -// 9.6. -func (m *MessageType) FromBytes(data []byte) error { - buf := uio.NewBigEndianBuffer(data) - *m = MessageType(buf.Read8()) - return buf.FinError() -} - -var messageTypeToString = map[MessageType]string{ - MessageTypeDiscover: "DISCOVER", - MessageTypeOffer: "OFFER", - MessageTypeRequest: "REQUEST", - MessageTypeDecline: "DECLINE", - MessageTypeAck: "ACK", - MessageTypeNak: "NAK", - MessageTypeRelease: "RELEASE", - MessageTypeInform: "INFORM", -} - -// OpcodeType represents a DHCPv4 opcode. -type OpcodeType uint8 - -// constants that represent valid values for OpcodeType -const ( - OpcodeBootRequest OpcodeType = 1 - OpcodeBootReply OpcodeType = 2 -) - -func (o OpcodeType) String() string { - if s, ok := opcodeToString[o]; ok { - return s - } - return fmt.Sprintf("unknown (%d)", uint8(o)) -} - -var opcodeToString = map[OpcodeType]string{ - OpcodeBootRequest: "BootRequest", - OpcodeBootReply: "BootReply", -} - -// OptionCode is a single byte representing the code for a given Option. -// -// OptionCode is an interface purely to support different stringers on options -// with the same Code value, as vendor-specific options use option codes that -// have the same value, but mean a different thing. -type OptionCode interface { - // Code is the 1 byte option code for the wire. - Code() uint8 - - // String returns the option's name. - String() string -} - -// optionCode is a DHCP option code. -type optionCode uint8 - -// Code implements OptionCode.Code. -func (o optionCode) Code() uint8 { - return uint8(o) -} - -// String returns an option name. -func (o optionCode) String() string { - if s, ok := optionCodeToString[o]; ok { - return s - } - return fmt.Sprintf("unknown (%d)", uint8(o)) -} - -// GenericOptionCode is an unnamed option code. -type GenericOptionCode uint8 - -// Code implements OptionCode.Code. -func (o GenericOptionCode) Code() uint8 { - return uint8(o) -} - -// String returns the option's name. -func (o GenericOptionCode) String() string { - return fmt.Sprintf("unknown (%d)", uint8(o)) -} - -// DHCPv4 Options -const ( - OptionPad optionCode = 0 - OptionSubnetMask optionCode = 1 - OptionTimeOffset optionCode = 2 - OptionRouter optionCode = 3 - OptionTimeServer optionCode = 4 - OptionNameServer optionCode = 5 - OptionDomainNameServer optionCode = 6 - OptionLogServer optionCode = 7 - OptionQuoteServer optionCode = 8 - OptionLPRServer optionCode = 9 - OptionImpressServer optionCode = 10 - OptionResourceLocationServer optionCode = 11 - OptionHostName optionCode = 12 - OptionBootFileSize optionCode = 13 - OptionMeritDumpFile optionCode = 14 - OptionDomainName optionCode = 15 - OptionSwapServer optionCode = 16 - OptionRootPath optionCode = 17 - OptionExtensionsPath optionCode = 18 - OptionIPForwarding optionCode = 19 - OptionNonLocalSourceRouting optionCode = 20 - OptionPolicyFilter optionCode = 21 - OptionMaximumDatagramAssemblySize optionCode = 22 - OptionDefaultIPTTL optionCode = 23 - OptionPathMTUAgingTimeout optionCode = 24 - OptionPathMTUPlateauTable optionCode = 25 - OptionInterfaceMTU optionCode = 26 - OptionAllSubnetsAreLocal optionCode = 27 - OptionBroadcastAddress optionCode = 28 - OptionPerformMaskDiscovery optionCode = 29 - OptionMaskSupplier optionCode = 30 - OptionPerformRouterDiscovery optionCode = 31 - OptionRouterSolicitationAddress optionCode = 32 - OptionStaticRoutingTable optionCode = 33 - OptionTrailerEncapsulation optionCode = 34 - OptionArpCacheTimeout optionCode = 35 - OptionEthernetEncapsulation optionCode = 36 - OptionDefaulTCPTTL optionCode = 37 - OptionTCPKeepaliveInterval optionCode = 38 - OptionTCPKeepaliveGarbage optionCode = 39 - OptionNetworkInformationServiceDomain optionCode = 40 - OptionNetworkInformationServers optionCode = 41 - OptionNTPServers optionCode = 42 - OptionVendorSpecificInformation optionCode = 43 - OptionNetBIOSOverTCPIPNameServer optionCode = 44 - OptionNetBIOSOverTCPIPDatagramDistributionServer optionCode = 45 - OptionNetBIOSOverTCPIPNodeType optionCode = 46 - OptionNetBIOSOverTCPIPScope optionCode = 47 - OptionXWindowSystemFontServer optionCode = 48 - OptionXWindowSystemDisplayManger optionCode = 49 - OptionRequestedIPAddress optionCode = 50 - OptionIPAddressLeaseTime optionCode = 51 - OptionOptionOverload optionCode = 52 - OptionDHCPMessageType optionCode = 53 - OptionServerIdentifier optionCode = 54 - OptionParameterRequestList optionCode = 55 - OptionMessage optionCode = 56 - OptionMaximumDHCPMessageSize optionCode = 57 - OptionRenewTimeValue optionCode = 58 - OptionRebindingTimeValue optionCode = 59 - OptionClassIdentifier optionCode = 60 - OptionClientIdentifier optionCode = 61 - OptionNetWareIPDomainName optionCode = 62 - OptionNetWareIPInformation optionCode = 63 - OptionNetworkInformationServicePlusDomain optionCode = 64 - OptionNetworkInformationServicePlusServers optionCode = 65 - OptionTFTPServerName optionCode = 66 - OptionBootfileName optionCode = 67 - OptionMobileIPHomeAgent optionCode = 68 - OptionSimpleMailTransportProtocolServer optionCode = 69 - OptionPostOfficeProtocolServer optionCode = 70 - OptionNetworkNewsTransportProtocolServer optionCode = 71 - OptionDefaultWorldWideWebServer optionCode = 72 - OptionDefaultFingerServer optionCode = 73 - OptionDefaultInternetRelayChatServer optionCode = 74 - OptionStreetTalkServer optionCode = 75 - OptionStreetTalkDirectoryAssistanceServer optionCode = 76 - OptionUserClassInformation optionCode = 77 - OptionSLPDirectoryAgent optionCode = 78 - OptionSLPServiceScope optionCode = 79 - OptionRapidCommit optionCode = 80 - OptionFQDN optionCode = 81 - OptionRelayAgentInformation optionCode = 82 - OptionInternetStorageNameService optionCode = 83 - // Option 84 returned in RFC 3679 - OptionNDSServers optionCode = 85 - OptionNDSTreeName optionCode = 86 - OptionNDSContext optionCode = 87 - OptionBCMCSControllerDomainNameList optionCode = 88 - OptionBCMCSControllerIPv4AddressList optionCode = 89 - OptionAuthentication optionCode = 90 - OptionClientLastTransactionTime optionCode = 91 - OptionAssociatedIP optionCode = 92 - OptionClientSystemArchitectureType optionCode = 93 - OptionClientNetworkInterfaceIdentifier optionCode = 94 - OptionLDAP optionCode = 95 - // Option 96 returned in RFC 3679 - OptionClientMachineIdentifier optionCode = 97 - OptionOpenGroupUserAuthentication optionCode = 98 - OptionGeoConfCivic optionCode = 99 - OptionIEEE10031TZString optionCode = 100 - OptionReferenceToTZDatabase optionCode = 101 - // Option 108 returned in RFC 8925 - OptionIPv6OnlyPreferred optionCode = 108 - // Options 102-111 returned in RFC 3679 - OptionNetInfoParentServerAddress optionCode = 112 - OptionNetInfoParentServerTag optionCode = 113 - OptionURL optionCode = 114 - // Option 115 returned in RFC 3679 - OptionAutoConfigure optionCode = 116 - OptionNameServiceSearch optionCode = 117 - OptionSubnetSelection optionCode = 118 - OptionDNSDomainSearchList optionCode = 119 - OptionSIPServers optionCode = 120 - OptionClasslessStaticRoute optionCode = 121 - OptionCCC optionCode = 122 - OptionGeoConf optionCode = 123 - OptionVendorIdentifyingVendorClass optionCode = 124 - OptionVendorIdentifyingVendorSpecific optionCode = 125 - // Options 126-127 returned in RFC 3679 - OptionTFTPServerIPAddress optionCode = 128 - OptionCallServerIPAddress optionCode = 129 - OptionDiscriminationString optionCode = 130 - OptionRemoteStatisticsServerIPAddress optionCode = 131 - Option8021PVLANID optionCode = 132 - Option8021QL2Priority optionCode = 133 - OptionDiffservCodePoint optionCode = 134 - OptionHTTPProxyForPhoneSpecificApplications optionCode = 135 - OptionPANAAuthenticationAgent optionCode = 136 - OptionLoSTServer optionCode = 137 - OptionCAPWAPAccessControllerAddresses optionCode = 138 - OptionOPTIONIPv4AddressMoS optionCode = 139 - OptionOPTIONIPv4FQDNMoS optionCode = 140 - OptionSIPUAConfigurationServiceDomains optionCode = 141 - OptionOPTIONIPv4AddressANDSF optionCode = 142 - OptionOPTIONIPv6AddressANDSF optionCode = 143 - // Options 144-149 returned in RFC 3679 - OptionTFTPServerAddress optionCode = 150 - OptionStatusCode optionCode = 151 - OptionBaseTime optionCode = 152 - OptionStartTimeOfState optionCode = 153 - OptionQueryStartTime optionCode = 154 - OptionQueryEndTime optionCode = 155 - OptionDHCPState optionCode = 156 - OptionDataSource optionCode = 157 - // Options 158-174 returned in RFC 3679 - OptionEtherboot optionCode = 175 - OptionIPTelephone optionCode = 176 - OptionEtherbootPacketCableAndCableHome optionCode = 177 - // Options 178-207 returned in RFC 3679 - OptionPXELinuxMagicString optionCode = 208 - OptionPXELinuxConfigFile optionCode = 209 - OptionPXELinuxPathPrefix optionCode = 210 - OptionPXELinuxRebootTime optionCode = 211 - OptionOPTION6RD optionCode = 212 - OptionOPTIONv4AccessDomain optionCode = 213 - // Options 214-219 returned in RFC 3679 - OptionSubnetAllocation optionCode = 220 - OptionVirtualSubnetAllocation optionCode = 221 - // Options 222-223 returned in RFC 3679 - // Options 224-254 are reserved for private use - OptionEnd optionCode = 255 -) - -var optionCodeToString = map[OptionCode]string{ - OptionPad: "Pad", - OptionSubnetMask: "Subnet Mask", - OptionTimeOffset: "Time Offset", - OptionRouter: "Router", - OptionTimeServer: "Time Server", - OptionNameServer: "Name Server", - OptionDomainNameServer: "Domain Name Server", - OptionLogServer: "Log Server", - OptionQuoteServer: "Quote Server", - OptionLPRServer: "LPR Server", - OptionImpressServer: "Impress Server", - OptionResourceLocationServer: "Resource Location Server", - OptionHostName: "Host Name", - OptionBootFileSize: "Boot File Size", - OptionMeritDumpFile: "Merit Dump File", - OptionDomainName: "Domain Name", - OptionSwapServer: "Swap Server", - OptionRootPath: "Root Path", - OptionExtensionsPath: "Extensions Path", - OptionIPForwarding: "IP Forwarding enable/disable", - OptionNonLocalSourceRouting: "Non-local Source Routing enable/disable", - OptionPolicyFilter: "Policy Filter", - OptionMaximumDatagramAssemblySize: "Maximum Datagram Reassembly Size", - OptionDefaultIPTTL: "Default IP Time-to-live", - OptionPathMTUAgingTimeout: "Path MTU Aging Timeout", - OptionPathMTUPlateauTable: "Path MTU Plateau Table", - OptionInterfaceMTU: "Interface MTU", - OptionAllSubnetsAreLocal: "All Subnets Are Local", - OptionBroadcastAddress: "Broadcast Address", - OptionPerformMaskDiscovery: "Perform Mask Discovery", - OptionMaskSupplier: "Mask Supplier", - OptionPerformRouterDiscovery: "Perform Router Discovery", - OptionRouterSolicitationAddress: "Router Solicitation Address", - OptionStaticRoutingTable: "Static Routing Table", - OptionTrailerEncapsulation: "Trailer Encapsulation", - OptionArpCacheTimeout: "ARP Cache Timeout", - OptionEthernetEncapsulation: "Ethernet Encapsulation", - OptionDefaulTCPTTL: "Default TCP TTL", - OptionTCPKeepaliveInterval: "TCP Keepalive Interval", - OptionTCPKeepaliveGarbage: "TCP Keepalive Garbage", - OptionNetworkInformationServiceDomain: "Network Information Service Domain", - OptionNetworkInformationServers: "Network Information Servers", - OptionNTPServers: "NTP Servers", - OptionVendorSpecificInformation: "Vendor Specific Information", - OptionNetBIOSOverTCPIPNameServer: "NetBIOS over TCP/IP Name Server", - OptionNetBIOSOverTCPIPDatagramDistributionServer: "NetBIOS over TCP/IP Datagram Distribution Server", - OptionNetBIOSOverTCPIPNodeType: "NetBIOS over TCP/IP Node Type", - OptionNetBIOSOverTCPIPScope: "NetBIOS over TCP/IP Scope", - OptionXWindowSystemFontServer: "X Window System Font Server", - OptionXWindowSystemDisplayManger: "X Window System Display Manager", - OptionRequestedIPAddress: "Requested IP Address", - OptionIPAddressLeaseTime: "IP Addresses Lease Time", - OptionOptionOverload: "Option Overload", - OptionDHCPMessageType: "DHCP Message Type", - OptionServerIdentifier: "Server Identifier", - OptionParameterRequestList: "Parameter Request List", - OptionMessage: "Message", - OptionMaximumDHCPMessageSize: "Maximum DHCP Message Size", - OptionRenewTimeValue: "Renew Time Value", - OptionRebindingTimeValue: "Rebinding Time Value", - OptionClassIdentifier: "Class Identifier", - OptionClientIdentifier: "Client identifier", - OptionNetWareIPDomainName: "NetWare/IP Domain Name", - OptionNetWareIPInformation: "NetWare/IP Information", - OptionNetworkInformationServicePlusDomain: "Network Information Service+ Domain", - OptionNetworkInformationServicePlusServers: "Network Information Service+ Servers", - OptionTFTPServerName: "TFTP Server Name", - OptionBootfileName: "Bootfile Name", - OptionMobileIPHomeAgent: "Mobile IP Home Agent", - OptionSimpleMailTransportProtocolServer: "SMTP Server", - OptionPostOfficeProtocolServer: "POP Server", - OptionNetworkNewsTransportProtocolServer: "NNTP Server", - OptionDefaultWorldWideWebServer: "Default WWW Server", - OptionDefaultFingerServer: "Default Finger Server", - OptionDefaultInternetRelayChatServer: "Default IRC Server", - OptionStreetTalkServer: "StreetTalk Server", - OptionStreetTalkDirectoryAssistanceServer: "StreetTalk Directory Assistance Server", - OptionUserClassInformation: "User Class Information", - OptionSLPDirectoryAgent: "SLP DIrectory Agent", - OptionSLPServiceScope: "SLP Service Scope", - OptionRapidCommit: "Rapid Commit", - OptionFQDN: "FQDN", - OptionRelayAgentInformation: "Relay Agent Information", - OptionInternetStorageNameService: "Internet Storage Name Service", - // Option 84 returned in RFC 3679 - OptionNDSServers: "NDS Servers", - OptionNDSTreeName: "NDS Tree Name", - OptionNDSContext: "NDS Context", - OptionBCMCSControllerDomainNameList: "BCMCS Controller Domain Name List", - OptionBCMCSControllerIPv4AddressList: "BCMCS Controller IPv4 Address List", - OptionAuthentication: "Authentication", - OptionClientLastTransactionTime: "Client Last Transaction Time", - OptionAssociatedIP: "Associated IP", - OptionClientSystemArchitectureType: "Client System Architecture Type", - OptionClientNetworkInterfaceIdentifier: "Client Network Interface Identifier", - OptionLDAP: "LDAP", - // Option 96 returned in RFC 3679 - OptionClientMachineIdentifier: "Client Machine Identifier", - OptionOpenGroupUserAuthentication: "OpenGroup's User Authentication", - OptionGeoConfCivic: "GEOCONF_CIVIC", - OptionIEEE10031TZString: "IEEE 1003.1 TZ String", - OptionReferenceToTZDatabase: "Reference to the TZ Database", - // Option 108 returned in RFC 8925 - OptionIPv6OnlyPreferred: "IPv6-Only Preferred", - // Options 102-111 returned in RFC 3679 - OptionNetInfoParentServerAddress: "NetInfo Parent Server Address", - OptionNetInfoParentServerTag: "NetInfo Parent Server Tag", - OptionURL: "URL", - // Option 115 returned in RFC 3679 - OptionAutoConfigure: "Auto-Configure", - OptionNameServiceSearch: "Name Service Search", - OptionSubnetSelection: "Subnet Selection", - OptionDNSDomainSearchList: "DNS Domain Search List", - OptionSIPServers: "SIP Servers", - OptionClasslessStaticRoute: "Classless Static Route", - OptionCCC: "CCC, CableLabs Client Configuration", - OptionGeoConf: "GeoConf", - OptionVendorIdentifyingVendorClass: "Vendor-Identifying Vendor Class", - OptionVendorIdentifyingVendorSpecific: "Vendor-Identifying Vendor-Specific", - // Options 126-127 returned in RFC 3679 - OptionTFTPServerIPAddress: "TFTP Server IP Address", - OptionCallServerIPAddress: "Call Server IP Address", - OptionDiscriminationString: "Discrimination String", - OptionRemoteStatisticsServerIPAddress: "RemoteStatistics Server IP Address", - Option8021PVLANID: "802.1P VLAN ID", - Option8021QL2Priority: "802.1Q L2 Priority", - OptionDiffservCodePoint: "Diffserv Code Point", - OptionHTTPProxyForPhoneSpecificApplications: "HTTP Proxy for phone-specific applications", - OptionPANAAuthenticationAgent: "PANA Authentication Agent", - OptionLoSTServer: "LoST Server", - OptionCAPWAPAccessControllerAddresses: "CAPWAP Access Controller Addresses", - OptionOPTIONIPv4AddressMoS: "OPTION-IPv4_Address-MoS", - OptionOPTIONIPv4FQDNMoS: "OPTION-IPv4_FQDN-MoS", - OptionSIPUAConfigurationServiceDomains: "SIP UA Configuration Service Domains", - OptionOPTIONIPv4AddressANDSF: "OPTION-IPv4_Address-ANDSF", - OptionOPTIONIPv6AddressANDSF: "OPTION-IPv6_Address-ANDSF", - // Options 144-149 returned in RFC 3679 - OptionTFTPServerAddress: "TFTP Server Address", - OptionStatusCode: "Status Code", - OptionBaseTime: "Base Time", - OptionStartTimeOfState: "Start Time of State", - OptionQueryStartTime: "Query Start Time", - OptionQueryEndTime: "Query End Time", - OptionDHCPState: "DHCP Staet", - OptionDataSource: "Data Source", - // Options 158-174 returned in RFC 3679 - OptionEtherboot: "Etherboot", - OptionIPTelephone: "IP Telephone", - OptionEtherbootPacketCableAndCableHome: "Etherboot / PacketCable and CableHome", - // Options 178-207 returned in RFC 3679 - OptionPXELinuxMagicString: "PXELinux Magic String", - OptionPXELinuxConfigFile: "PXELinux Config File", - OptionPXELinuxPathPrefix: "PXELinux Path Prefix", - OptionPXELinuxRebootTime: "PXELinux Reboot Time", - OptionOPTION6RD: "OPTION_6RD", - OptionOPTIONv4AccessDomain: "OPTION_V4_ACCESS_DOMAIN", - // Options 214-219 returned in RFC 3679 - OptionSubnetAllocation: "Subnet Allocation", - OptionVirtualSubnetAllocation: "Virtual Subnet Selection", - // Options 222-223 returned in RFC 3679 - // Options 224-254 are reserved for private use - - OptionEnd: "End", -} diff --git a/vendor/github.com/insomniacslk/dhcp/iana/archtype.go b/vendor/github.com/insomniacslk/dhcp/iana/archtype.go deleted file mode 100644 index d85870ccde..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/iana/archtype.go +++ /dev/null @@ -1,148 +0,0 @@ -package iana - -import ( - "fmt" - "strings" - - "github.com/u-root/uio/uio" -) - -// Arch encodes an architecture type per RFC 4578, Section 2.1. -type Arch uint16 - -// See RFC 4578, 5970, and http://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml#processor-architecture -const ( - INTEL_X86PC Arch = 0 - NEC_PC98 Arch = 1 - EFI_ITANIUM Arch = 2 - DEC_ALPHA Arch = 3 - ARC_X86 Arch = 4 - INTEL_LEAN_CLIENT Arch = 5 - EFI_IA32 Arch = 6 - EFI_X86_64 Arch = 7 - EFI_XSCALE Arch = 8 - EFI_BC Arch = 9 - EFI_ARM32 Arch = 10 - EFI_ARM64 Arch = 11 - PPC_OPEN_FIRMWARE Arch = 12 - PPC_EPAPR Arch = 13 - PPC_OPAL Arch = 14 - EFI_X86_HTTP Arch = 15 - EFI_X86_64_HTTP Arch = 16 - EFI_BC_HTTP Arch = 17 - EFI_ARM32_HTTP Arch = 18 - EFI_ARM64_HTTP Arch = 19 - INTEL_X86PC_HTTP Arch = 20 - UBOOT_ARM32 Arch = 21 - UBOOT_ARM64 Arch = 22 - UBOOT_ARM32_HTTP Arch = 23 - UBOOT_ARM64_HTTP Arch = 24 - EFI_RISCV32 Arch = 25 - EFI_RISCV32_HTTP Arch = 26 - EFI_RISCV64 Arch = 27 - EFI_RISCV64_HTTP Arch = 28 - EFI_RISCV128 Arch = 29 - EFI_RISCV128_HTTP Arch = 30 - S390_BASIC Arch = 31 - S390_EXTENDED Arch = 32 - EFI_MIPS32 Arch = 33 - EFI_MIPS64 Arch = 34 - EFI_SUNWAY32 Arch = 35 - EFI_SUNWAY64 Arch = 36 -) - -// archTypeToStringMap maps an Arch to a mnemonic name -var archTypeToStringMap = map[Arch]string{ - INTEL_X86PC: "Intel x86PC", - NEC_PC98: "NEC/PC98", - EFI_ITANIUM: "EFI Itanium", - DEC_ALPHA: "DEC Alpha", - ARC_X86: "Arc x86", - INTEL_LEAN_CLIENT: "Intel Lean Client", - EFI_IA32: "EFI IA32", - EFI_XSCALE: "EFI Xscale", - EFI_X86_64: "EFI x86-64", - EFI_BC: "EFI BC", - EFI_ARM32: "EFI ARM32", - EFI_ARM64: "EFI ARM64", - PPC_OPEN_FIRMWARE: "PowerPC Open Firmware", - PPC_EPAPR: "PowerPC ePAPR", - PPC_OPAL: "POWER OPAL v3", - EFI_X86_HTTP: "EFI x86 boot from HTTP", - EFI_X86_64_HTTP: "EFI x86-64 boot from HTTP", - EFI_BC_HTTP: "EFI BC boot from HTTP", - EFI_ARM32_HTTP: "EFI ARM32 boot from HTTP", - EFI_ARM64_HTTP: "EFI ARM64 boot from HTTP", - INTEL_X86PC_HTTP: "Intel x86PC boot from HTTP", - UBOOT_ARM32: "U-Boot ARM32", - UBOOT_ARM64: "U-Boot ARM64", - UBOOT_ARM32_HTTP: "U-boot ARM32 boot from HTTP", - UBOOT_ARM64_HTTP: "U-Boot ARM64 boot from HTTP", - EFI_RISCV32: "EFI RISC-V 32-bit", - EFI_RISCV32_HTTP: "EFI RISC-V 32-bit boot from HTTP", - EFI_RISCV64: "EFI RISC-V 64-bit", - EFI_RISCV64_HTTP: "EFI RISC-V 64-bit boot from HTTP", - EFI_RISCV128: "EFI RISC-V 128-bit", - EFI_RISCV128_HTTP: "EFI RISC-V 128-bit boot from HTTP", - S390_BASIC: "s390 Basic", - S390_EXTENDED: "s390 Extended", - EFI_MIPS32: "EFI MIPS32", - EFI_MIPS64: "EFI MIPS64", - EFI_SUNWAY32: "EFI Sunway 32-bit", - EFI_SUNWAY64: "EFI Sunway 64-bit", -} - -// String returns a mnemonic name for a given architecture type. -func (a Arch) String() string { - if at := archTypeToStringMap[a]; at != "" { - return at - } - return "unknown" -} - -// Archs represents multiple Arch values. -type Archs []Arch - -// Contains returns whether b is one of the Archs in a. -func (a Archs) Contains(b Arch) bool { - for _, t := range a { - if t == b { - return true - } - } - return false -} - -// ToBytes returns the serialized option defined by RFC 4578 (DHCPv4) and RFC -// 5970 (DHCPv6) as the Client System Architecture Option. -func (a Archs) ToBytes() []byte { - buf := uio.NewBigEndianBuffer(nil) - for _, at := range a { - buf.Write16(uint16(at)) - } - return buf.Data() -} - -// String returns the list of archs in a human-readable manner. -func (a Archs) String() string { - s := make([]string, 0, len(a)) - for _, arch := range a { - s = append(s, arch.String()) - } - return strings.Join(s, ", ") -} - -// FromBytes parses a DHCP list of architecture types as defined by RFC 4578 -// and RFC 5970. -func (a *Archs) FromBytes(data []byte) error { - buf := uio.NewBigEndianBuffer(data) - if buf.Len() == 0 { - return fmt.Errorf("must have at least one archtype if option is present") - } - - *a = make([]Arch, 0, buf.Len()/2) - for buf.Has(2) { - *a = append(*a, Arch(buf.Read16())) - } - return buf.FinError() -} diff --git a/vendor/github.com/insomniacslk/dhcp/iana/entid.go b/vendor/github.com/insomniacslk/dhcp/iana/entid.go deleted file mode 100644 index 6aa318c694..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/iana/entid.go +++ /dev/null @@ -1,25 +0,0 @@ -package iana - -// EnterpriseID represents the Enterprise IDs as set by IANA -type EnterpriseID int - -// See https://www.iana.org/assignments/enterprise-numbers/enterprise-numbers for values -const ( - EnterpriseIDCiscoSystems EnterpriseID = 9 - EnterpriseIDCienaCorporation EnterpriseID = 1271 - EnterpriseIDMellanoxTechnologiesLTD EnterpriseID = 33049 -) - -var enterpriseIDToStringMap = map[EnterpriseID]string{ - EnterpriseIDCiscoSystems: "Cisco Systems", - EnterpriseIDCienaCorporation: "Ciena Corporation", - EnterpriseIDMellanoxTechnologiesLTD: "Mellanox Technologies LTD", -} - -// String returns the vendor name for a given Enterprise ID -func (e EnterpriseID) String() string { - if vendor := enterpriseIDToStringMap[e]; vendor != "" { - return vendor - } - return "Unknown" -} diff --git a/vendor/github.com/insomniacslk/dhcp/iana/hwtypes.go b/vendor/github.com/insomniacslk/dhcp/iana/hwtypes.go deleted file mode 100644 index e6fb38b23d..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/iana/hwtypes.go +++ /dev/null @@ -1,91 +0,0 @@ -package iana - -// HWType is a hardware type as per RFC 2132 and defined by the IANA. -type HWType uint16 - -// See IANA for values. -const ( - _ HWType = iota // skip 0 - HWTypeEthernet - HWTypeExperimentalEthernet - HWTypeAmateurRadioAX25 - HWTypeProteonTokenRing - HWTypeChaos - HWTypeIEEE802 - HWTypeARCNET - HWTypeHyperchannel - HWTypeLanstar - HWTypeAutonet - HWTypeLocalTalk - HWTypeLocalNet - HWTypeUltraLink - HWTypeSMDS - HWTypeFrameRelay - HWTypeATM - HWTypeHDLC - HWTypeFibreChannel - HWTypeATM2 - HWTypeSerialLine - HWTypeATM3 - HWTypeMILSTD188220 - HWTypeMetricom - HWTypeIEEE1394 - HWTypeMAPOS - HWTypeTwinaxial - HWTypeEUI64 - HWTypeHIPARP - HWTypeISO7816 - HWTypeARPSec - HWTypeIPsec - HWTypeInfiniband - HWTypeCAI - HWTypeWiegandInterface - HWTypePureIP -) - -var hwTypeToString = map[HWType]string{ - HWTypeEthernet: "Ethernet", - HWTypeExperimentalEthernet: "Experimental Ethernet", - HWTypeAmateurRadioAX25: "Amateur Radio AX.25", - HWTypeProteonTokenRing: "Proteon ProNET Token Ring", - HWTypeChaos: "Chaos", - HWTypeIEEE802: "IEEE 802", - HWTypeARCNET: "ARCNET", - HWTypeHyperchannel: "Hyperchannel", - HWTypeLanstar: "Lanstar", - HWTypeAutonet: "Autonet Short Address", - HWTypeLocalTalk: "LocalTalk", - HWTypeLocalNet: "LocalNet", - HWTypeUltraLink: "Ultra link", - HWTypeSMDS: "SMDS", - HWTypeFrameRelay: "Frame Relay", - HWTypeATM: "ATM", - HWTypeHDLC: "HDLC", - HWTypeFibreChannel: "Fibre Channel", - HWTypeATM2: "ATM 2", - HWTypeSerialLine: "Serial Line", - HWTypeATM3: "ATM 3", - HWTypeMILSTD188220: "MIL-STD-188-220", - HWTypeMetricom: "Metricom", - HWTypeIEEE1394: "IEEE 1394.1995", - HWTypeMAPOS: "MAPOS", - HWTypeTwinaxial: "Twinaxial", - HWTypeEUI64: "EUI-64", - HWTypeHIPARP: "HIPARP", - HWTypeISO7816: "IP and ARP over ISO 7816-3", - HWTypeARPSec: "ARPSec", - HWTypeIPsec: "IPsec tunnel", - HWTypeInfiniband: "Infiniband", - HWTypeCAI: "CAI, TIA-102 Project 125 Common Air Interface", - HWTypeWiegandInterface: "Wiegand Interface", - HWTypePureIP: "Pure IP", -} - -// String implements fmt.Stringer. -func (h HWType) String() string { - hwtype := hwTypeToString[h] - if hwtype == "" { - hwtype = "unknown" - } - return hwtype -} diff --git a/vendor/github.com/insomniacslk/dhcp/iana/iana.go b/vendor/github.com/insomniacslk/dhcp/iana/iana.go deleted file mode 100644 index e0d5956cf2..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/iana/iana.go +++ /dev/null @@ -1,2 +0,0 @@ -// Package iana contains constants defined by IANA. -package iana diff --git a/vendor/github.com/insomniacslk/dhcp/iana/statuscodes.go b/vendor/github.com/insomniacslk/dhcp/iana/statuscodes.go deleted file mode 100644 index ee45820a4b..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/iana/statuscodes.go +++ /dev/null @@ -1,77 +0,0 @@ -package iana - -// StatusCode represents a IANA status code for DHCPv6 -// -// IANA Status Codes for DHCPv6 -// https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml#dhcpv6-parameters-5 -type StatusCode uint16 - -// IANA status codes -const ( - // RFC 3315 par. 24..4 - StatusSuccess StatusCode = 0 - StatusUnspecFail StatusCode = 1 - StatusNoAddrsAvail StatusCode = 2 - StatusNoBinding StatusCode = 3 - StatusNotOnLink StatusCode = 4 - StatusUseMulticast StatusCode = 5 - StatusNoPrefixAvail StatusCode = 6 - // RFC 5007 - StatusUnknownQueryType StatusCode = 7 - StatusMalformedQuery StatusCode = 8 - StatusNotConfigured StatusCode = 9 - StatusNotAllowed StatusCode = 10 - // RFC 5460 - StatusQueryTerminated StatusCode = 11 - // RFC 7653 - StatusDataMissing StatusCode = 12 - StatusCatchUpComplete StatusCode = 13 - StatusNotSupported StatusCode = 14 - StatusTLSConnectionRefused StatusCode = 15 - // RFC 8156 - StatusAddressInUse StatusCode = 16 - StatusConfigurationConflict StatusCode = 17 - StatusMissingBindingInformation StatusCode = 18 - StatusOutdatedBindingInformation StatusCode = 19 - StatusServerShuttingDown StatusCode = 20 - StatusDNSUpdateNotSupported StatusCode = 21 - StatusExcessiveTimeSkew StatusCode = 22 -) - -// String returns a mnemonic name for a given status code -func (s StatusCode) String() string { - if sc := statusCodeToStringMap[s]; sc != "" { - return sc - } - return "Unknown" -} - -var statusCodeToStringMap = map[StatusCode]string{ - StatusSuccess: "Success", - StatusUnspecFail: "UnspecFail", - StatusNoAddrsAvail: "NoAddrsAvail", - StatusNoBinding: "NoBinding", - StatusNotOnLink: "NotOnLink", - StatusUseMulticast: "UseMulticast", - StatusNoPrefixAvail: "NoPrefixAvail", - // RFC 5007 - StatusUnknownQueryType: "UnknownQueryType", - StatusMalformedQuery: "MalformedQuery", - StatusNotConfigured: "NotConfigured", - StatusNotAllowed: "NotAllowed", - // RFC 5460 - StatusQueryTerminated: "QueryTerminated", - // RFC 7653 - StatusDataMissing: "DataMissing", - StatusCatchUpComplete: "CatchUpComplete", - StatusNotSupported: "NotSupported", - StatusTLSConnectionRefused: "TLSConnectionRefused", - // RFC 8156 - StatusAddressInUse: "AddressInUse", - StatusConfigurationConflict: "ConfigurationConflict", - StatusMissingBindingInformation: "MissingBindingInformation", - StatusOutdatedBindingInformation: "OutdatedBindingInformation", - StatusServerShuttingDown: "ServerShuttingDown", - StatusDNSUpdateNotSupported: "DNSUpdateNotSupported", - StatusExcessiveTimeSkew: "ExcessiveTimeSkew", -} diff --git a/vendor/github.com/insomniacslk/dhcp/interfaces/bindtodevice_bsd.go b/vendor/github.com/insomniacslk/dhcp/interfaces/bindtodevice_bsd.go deleted file mode 100644 index 7dbfd3fb90..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/interfaces/bindtodevice_bsd.go +++ /dev/null @@ -1,19 +0,0 @@ -// +build aix freebsd openbsd netbsd dragonfly - -package interfaces - -import ( - "net" - - "golang.org/x/sys/unix" -) - -// BindToInterface emulates linux's SO_BINDTODEVICE option for a socket by using -// IP_RECVIF. -func BindToInterface(fd int, ifname string) error { - iface, err := net.InterfaceByName(ifname) - if err != nil { - return err - } - return unix.SetsockoptInt(fd, unix.IPPROTO_IP, unix.IP_RECVIF, iface.Index) -} diff --git a/vendor/github.com/insomniacslk/dhcp/interfaces/bindtodevice_darwin.go b/vendor/github.com/insomniacslk/dhcp/interfaces/bindtodevice_darwin.go deleted file mode 100644 index 5ddfc0e3fc..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/interfaces/bindtodevice_darwin.go +++ /dev/null @@ -1,19 +0,0 @@ -// +build darwin - -package interfaces - -import ( - "net" - - "golang.org/x/sys/unix" -) - -// BindToInterface emulates linux's SO_BINDTODEVICE option for a socket by using -// IP_BOUND_IF. -func BindToInterface(fd int, ifname string) error { - iface, err := net.InterfaceByName(ifname) - if err != nil { - return err - } - return unix.SetsockoptInt(fd, unix.IPPROTO_IP, unix.IP_BOUND_IF, iface.Index) -} diff --git a/vendor/github.com/insomniacslk/dhcp/interfaces/bindtodevice_linux.go b/vendor/github.com/insomniacslk/dhcp/interfaces/bindtodevice_linux.go deleted file mode 100644 index 52c7177bf1..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/interfaces/bindtodevice_linux.go +++ /dev/null @@ -1,9 +0,0 @@ -// +build linux - -package interfaces - -import "golang.org/x/sys/unix" - -func BindToInterface(fd int, ifname string) error { - return unix.BindToDevice(fd, ifname) -} diff --git a/vendor/github.com/insomniacslk/dhcp/interfaces/bindtodevice_windows.go b/vendor/github.com/insomniacslk/dhcp/interfaces/bindtodevice_windows.go deleted file mode 100644 index 6de9b4d03f..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/interfaces/bindtodevice_windows.go +++ /dev/null @@ -1,8 +0,0 @@ -package interfaces - -import "errors" - -// BindToInterface fails on Windows. -func BindToInterface(fd int, ifname string) error { - return errors.New("not implemented on Windows") -} diff --git a/vendor/github.com/insomniacslk/dhcp/interfaces/interfaces.go b/vendor/github.com/insomniacslk/dhcp/interfaces/interfaces.go deleted file mode 100644 index 5761669f0d..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/interfaces/interfaces.go +++ /dev/null @@ -1,41 +0,0 @@ -package interfaces - -import "net" - -// InterfaceMatcher is a function type used to match the interfaces we want. See -// GetInterfacesFunc below for usage. -type InterfaceMatcher func(net.Interface) bool - -// interfaceGetter is used for testing purposes -var interfaceGetter = net.Interfaces - -// GetInterfacesFunc loops through the available network interfaces, and returns -// a list of interfaces for which the passed InterfaceMatcher function returns -// true. -func GetInterfacesFunc(matcher InterfaceMatcher) ([]net.Interface, error) { - ifaces, err := interfaceGetter() - if err != nil { - return nil, err - } - ret := make([]net.Interface, 0) - for _, iface := range ifaces { - if matcher(iface) { - ret = append(ret, iface) - } - } - return ret, nil -} - -// GetLoopbackInterfaces returns a list of loopback interfaces. -func GetLoopbackInterfaces() ([]net.Interface, error) { - return GetInterfacesFunc(func(iface net.Interface) bool { - return iface.Flags&net.FlagLoopback != 0 - }) -} - -// GetNonLoopbackInterfaces returns a list of non-loopback interfaces. -func GetNonLoopbackInterfaces() ([]net.Interface, error) { - return GetInterfacesFunc(func(iface net.Interface) bool { - return iface.Flags&net.FlagLoopback == 0 - }) -} diff --git a/vendor/github.com/insomniacslk/dhcp/rfc1035label/label.go b/vendor/github.com/insomniacslk/dhcp/rfc1035label/label.go deleted file mode 100644 index f727ec6eba..0000000000 --- a/vendor/github.com/insomniacslk/dhcp/rfc1035label/label.go +++ /dev/null @@ -1,173 +0,0 @@ -package rfc1035label - -import ( - "errors" - "fmt" - "strings" -) - -// Labels represents RFC1035 labels -// -// This implements RFC 1035 labels, including compression. -// https://tools.ietf.org/html/rfc1035#section-4.1.4 -type Labels struct { - // original contains the original bytes if the object was parsed from a byte - // sequence, or nil otherwise. The `original` field is necessary to deal - // with compressed labels. If the labels are further modified, the original - // content is invalidated and no compression will be used. - original []byte - // Labels contains the parsed labels. A change here invalidates the - // `original` object. - Labels []string -} - -// same compares two string arrays -func same(a, b []string) bool { - if len(a) != len(b) { - return false - } - for i := 0; i < len(a); i++ { - if a[i] != b[i] { - return false - } - } - return true -} - -// String prints labels. -func (l *Labels) String() string { - return fmt.Sprintf("%v", l.Labels) -} - -// ToBytes returns a byte sequence representing the labels. If the original -// sequence is modified, the labels are parsed again, otherwise the original -// byte sequence is returned. -func (l *Labels) ToBytes() []byte { - // if the original byte sequence has been modified, invalidate it and - // serialize again. - // NOTE: this function is not thread-safe. If multiple threads modify - // the `Labels` field, the result may be wrong. - originalLabels, err := labelsFromBytes(l.original) - // if the original object has not been modified, or we cannot parse it, - // return the original bytes. - if err != nil || (l.original != nil && same(originalLabels, l.Labels)) { - return l.original - } - return labelsToBytes(l.Labels) -} - -// Length returns the length in bytes of the serialized labels -func (l *Labels) Length() int { - return len(l.ToBytes()) -} - -// NewLabels returns an initialized Labels object. -func NewLabels() *Labels { - return &Labels{ - Labels: make([]string, 0), - } -} - -// FromBytes reads labels from a bytes stream according to RFC 1035. -func (l *Labels) FromBytes(data []byte) error { - labs, err := labelsFromBytes(data) - if err != nil { - return err - } - l.original = data - l.Labels = labs - return nil -} - -// FromBytes returns a Labels object from the given byte sequence, or an error if -// any. -func FromBytes(data []byte) (*Labels, error) { - var l Labels - if err := l.FromBytes(data); err != nil { - return nil, err - } - return &l, nil -} - -// ErrBufferTooShort is returned when the label cannot be parsed due to a wrong -// length or missing bytes. -var ErrBufferTooShort = errors.New("rfc1035label: buffer too short") - -// fromBytes decodes a serialized stream and returns a list of labels -func labelsFromBytes(buf []byte) ([]string, error) { - var ( - labels = make([]string, 0) - pos, oldPos int - label string - handlingPointer bool - ) - - for { - if pos >= len(buf) { - // interpret label without trailing zero-length byte as a partial - // domain name field as per RFC 4704 Section 4.2 - if label != "" { - labels = append(labels, label) - } - - break - } - length := int(buf[pos]) - pos++ - var chunk string - if length == 0 { - labels = append(labels, label) - label = "" - if handlingPointer { - pos = oldPos - handlingPointer = false - } - } else if length&0xc0 == 0xc0 { - // compression pointer - if handlingPointer { - return nil, errors.New("rfc1035label: cannot handle nested pointers") - } - handlingPointer = true - if pos+1 > len(buf) { - return nil, errors.New("rfc1035label: pointer buffer too short") - } - off := int(buf[pos-1]&^0xc0)<<8 + int(buf[pos]) - oldPos = pos + 1 - pos = off - } else { - if pos+length > len(buf) { - return nil, ErrBufferTooShort - } - chunk = string(buf[pos : pos+length]) - if label != "" { - label += "." - } - label += chunk - pos += length - } - } - return labels, nil -} - -// labelToBytes encodes a label and returns a serialized stream of bytes -func labelToBytes(label string) []byte { - var encodedLabel []byte - if len(label) == 0 { - return []byte{0} - } - for _, part := range strings.Split(label, ".") { - encodedLabel = append(encodedLabel, byte(len(part))) - encodedLabel = append(encodedLabel, []byte(part)...) - } - return append(encodedLabel, 0) -} - -// labelsToBytes encodes a list of labels and returns a serialized stream of -// bytes -func labelsToBytes(labels []string) []byte { - var encodedLabels []byte - for _, label := range labels { - encodedLabels = append(encodedLabels, labelToBytes(label)...) - } - return encodedLabels -} diff --git a/vendor/github.com/mdlayher/socket/.golangci.yml b/vendor/github.com/mdlayher/socket/.golangci.yml deleted file mode 100644 index 1f10166aab..0000000000 --- a/vendor/github.com/mdlayher/socket/.golangci.yml +++ /dev/null @@ -1,16 +0,0 @@ -version: "2" -linters: - enable: - - misspell - - modernize - - revive - exclusions: - generated: lax - presets: - - comments - - common-false-positives - - legacy - - std-error-handling -formatters: - exclusions: - generated: lax diff --git a/vendor/github.com/mdlayher/socket/CHANGELOG.md b/vendor/github.com/mdlayher/socket/CHANGELOG.md deleted file mode 100644 index b94818e7ca..0000000000 --- a/vendor/github.com/mdlayher/socket/CHANGELOG.md +++ /dev/null @@ -1,99 +0,0 @@ -# CHANGELOG - -## v0.5.2 - -- [Improvement]: Bump build to Go 1.23.0. Note this is required for the latest - Go extended library versions. - -## v0.5.1 - -- [Improvement]: revert `go.mod` to Go 1.20 to [resolve an issue around Go - module version upgrades](https://github.com/mdlayher/socket/issues/13). - -## v0.5.0 - -**This is the first release of package socket that only supports Go 1.21+. -Users on older versions of Go must use v0.4.1.** - -- [Improvement]: drop support for older versions of Go. -- [New API]: add `socket.Conn` wrappers for various `Getsockopt` and - `Setsockopt` system calls. - -## v0.4.1 - -- [Bug Fix] [commit](https://github.com/mdlayher/socket/commit/2a14ceef4da279de1f957c5761fffcc6c87bbd3b): - ensure `socket.Conn` can be used with non-socket file descriptors by handling - `ENOTSOCK` in the constructor. - -## v0.4.0 - -**This is the first release of package socket that only supports Go 1.18+. -Users on older versions of Go must use v0.3.0.** - -- [Improvement]: drop support for older versions of Go so we can begin using - modern versions of `x/sys` and other dependencies. - -## v0.3.0 - -**This is the last release of package socket that supports Go 1.17 and below.** - -- [New API/API change] [PR](https://github.com/mdlayher/socket/pull/8): - numerous `socket.Conn` methods now support context cancelation. Future - releases will continue adding support as needed. - - New `ReadContext` and `WriteContext` methods. - - `Connect`, `Recvfrom`, `Recvmsg`, `Sendmsg`, and `Sendto` methods now accept - a context. - - `Sendto` parameter order was also fixed to match the underlying syscall. - -## v0.2.3 - -- [New API] [commit](https://github.com/mdlayher/socket/commit/a425d96e0f772c053164f8ce4c9c825380a98086): - `socket.Conn` has new `Pidfd*` methods for wrapping the `pidfd_*(2)` family of - system calls. - -## v0.2.2 - -- [New API] [commit](https://github.com/mdlayher/socket/commit/a2429f1dfe8ec2586df5a09f50ead865276cd027): - `socket.Conn` has new `IoctlKCM*` methods for wrapping `ioctl(2)` for `AF_KCM` - operations. - -## v0.2.1 - -- [New API] [commit](https://github.com/mdlayher/socket/commit/b18ddbe9caa0e34552b4409a3aa311cb460d2f99): - `socket.Conn` has a new `SetsockoptPacketMreq` method for wrapping - `setsockopt(2)` for `AF_PACKET` socket options. - -## v0.2.0 - -- [New API] [commit](https://github.com/mdlayher/socket/commit/6e912a68523c45e5fd899239f4b46c402dd856da): - `socket.FileConn` can be used to create a `socket.Conn` from an existing - `os.File`, which may be provided by systemd socket activation or another - external mechanism. -- [API change] [commit](https://github.com/mdlayher/socket/commit/66d61f565188c23fe02b24099ddc856d538bf1a7): - `socket.Conn.Connect` now returns the `unix.Sockaddr` value provided by - `getpeername(2)`, since we have to invoke that system call anyway to verify - that a connection to a remote peer was successfully established. -- [Bug Fix] [commit](https://github.com/mdlayher/socket/commit/b60b2dbe0ac3caff2338446a150083bde8c5c19c): - check the correct error from `unix.GetsockoptInt` in the `socket.Conn.Connect` - method. Thanks @vcabbage! - -## v0.1.2 - -- [Bug Fix]: `socket.Conn.Connect` now properly checks the `SO_ERROR` socket - option value after calling `connect(2)` to verify whether or not a connection - could successfully be established. This means that `Connect` should now report - an error for an `AF_INET` TCP connection refused or `AF_VSOCK` connection - reset by peer. -- [New API]: add `socket.Conn.Getpeername` for use in `Connect`, but also for - use by external callers. - -## v0.1.1 - -- [New API]: `socket.Conn` now has `CloseRead`, `CloseWrite`, and `Shutdown` - methods. -- [Improvement]: internal rework to more robustly handle various errors. - -## v0.1.0 - -- Initial unstable release. Most functionality has been developed and ported -from package [`netlink`](https://github.com/mdlayher/netlink). diff --git a/vendor/github.com/mdlayher/socket/LICENSE.md b/vendor/github.com/mdlayher/socket/LICENSE.md deleted file mode 100644 index 3ccdb75b26..0000000000 --- a/vendor/github.com/mdlayher/socket/LICENSE.md +++ /dev/null @@ -1,9 +0,0 @@ -# MIT License - -Copyright (C) 2021 Matt Layher - -Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/vendor/github.com/mdlayher/socket/README.md b/vendor/github.com/mdlayher/socket/README.md deleted file mode 100644 index 2aa065cbb7..0000000000 --- a/vendor/github.com/mdlayher/socket/README.md +++ /dev/null @@ -1,23 +0,0 @@ -# socket [![Test Status](https://github.com/mdlayher/socket/workflows/Test/badge.svg)](https://github.com/mdlayher/socket/actions) [![Go Reference](https://pkg.go.dev/badge/github.com/mdlayher/socket.svg)](https://pkg.go.dev/github.com/mdlayher/socket) [![Go Report Card](https://goreportcard.com/badge/github.com/mdlayher/socket)](https://goreportcard.com/report/github.com/mdlayher/socket) - -Package `socket` provides a low-level network connection type which integrates -with Go's runtime network poller to provide asynchronous I/O and deadline -support. MIT Licensed. - -This package focuses on UNIX-like operating systems which make use of BSD -sockets system call APIs. It is meant to be used as a foundation for the -creation of operating system-specific socket packages, for socket families such -as Linux's `AF_NETLINK`, `AF_PACKET`, or `AF_VSOCK`. This package should not be -used directly in end user applications. - -Any use of package socket should be guarded by build tags, as one would also -use when importing the `syscall` or `golang.org/x/sys` packages. - -## Stability - -See the [CHANGELOG](./CHANGELOG.md) file for a description of changes between -releases. - -This package only supports the two most recent major versions of Go, mirroring -Go's own release policy. Older versions of Go may lack critical features and bug -fixes which are necessary for this package to function correctly. diff --git a/vendor/github.com/mdlayher/socket/accept.go b/vendor/github.com/mdlayher/socket/accept.go deleted file mode 100644 index 47e9d897ef..0000000000 --- a/vendor/github.com/mdlayher/socket/accept.go +++ /dev/null @@ -1,23 +0,0 @@ -//go:build !dragonfly && !freebsd && !illumos && !linux -// +build !dragonfly,!freebsd,!illumos,!linux - -package socket - -import ( - "fmt" - "runtime" - - "golang.org/x/sys/unix" -) - -const sysAccept = "accept" - -// accept wraps accept(2). -func accept(fd, flags int) (int, unix.Sockaddr, error) { - if flags != 0 { - // These operating systems have no support for flags to accept(2). - return 0, nil, fmt.Errorf("socket: Conn.Accept flags are ineffective on %s", runtime.GOOS) - } - - return unix.Accept(fd) -} diff --git a/vendor/github.com/mdlayher/socket/accept4.go b/vendor/github.com/mdlayher/socket/accept4.go deleted file mode 100644 index 48be812ed8..0000000000 --- a/vendor/github.com/mdlayher/socket/accept4.go +++ /dev/null @@ -1,14 +0,0 @@ -//go:build dragonfly || freebsd || illumos || linux - -package socket - -import ( - "golang.org/x/sys/unix" -) - -const sysAccept = "accept4" - -// accept wraps accept4(2). -func accept(fd, flags int) (int, unix.Sockaddr, error) { - return unix.Accept4(fd, flags) -} diff --git a/vendor/github.com/mdlayher/socket/conn.go b/vendor/github.com/mdlayher/socket/conn.go deleted file mode 100644 index 6057a2e0a8..0000000000 --- a/vendor/github.com/mdlayher/socket/conn.go +++ /dev/null @@ -1,892 +0,0 @@ -package socket - -import ( - "context" - "errors" - "io" - "os" - "sync" - "sync/atomic" - "syscall" - "time" - - "golang.org/x/sys/unix" -) - -// Lock in an expected public interface for convenience. -var _ interface { - io.ReadWriteCloser - syscall.Conn - SetDeadline(t time.Time) error - SetReadDeadline(t time.Time) error - SetWriteDeadline(t time.Time) error -} = &Conn{} - -// A Conn is a low-level network connection which integrates with Go's runtime -// network poller to provide asynchronous I/O and deadline support. -// -// Many of a Conn's blocking methods support net.Conn deadlines as well as -// cancelation via context. Note that passing a context with a deadline set will -// override any of the previous deadlines set by calls to the SetDeadline family -// of methods. -type Conn struct { - // Indicates whether or not Conn.Close has been called. Must be accessed - // atomically. Atomics definitions must come first in the Conn struct. - closed uint32 - - // A unique name for the Conn which is also associated with derived file - // descriptors such as those created by accept(2). - name string - - // facts contains information we have determined about Conn to trigger - // alternate behavior in certain functions. - facts facts - - // Provides access to the underlying file registered with the runtime - // network poller, and arbitrary raw I/O calls. - fd *os.File - rc syscall.RawConn -} - -// facts contains facts about a Conn. -type facts struct { - // isStream reports whether this is a streaming descriptor, as opposed to a - // packet-based descriptor like a UDP socket. - isStream bool - - // zeroReadIsEOF reports Whether a zero byte read indicates EOF. This is - // false for a message based socket connection. - zeroReadIsEOF bool -} - -// A Config contains options for a Conn. -type Config struct { - // NetNS specifies the Linux network namespace the Conn will operate in. - // This option is unsupported on other operating systems. - // - // If set (non-zero), Conn will enter the specified network namespace and an - // error will occur in Socket if the operation fails. - // - // If not set (zero), a best-effort attempt will be made to enter the - // network namespace of the calling thread: this means that any changes made - // to the calling thread's network namespace will also be reflected in Conn. - // If this operation fails (due to lack of permissions or because network - // namespaces are disabled by kernel configuration), Socket will not return - // an error, and the Conn will operate in the default network namespace of - // the process. This enables non-privileged use of Conn in applications - // which do not require elevated privileges. - // - // Entering a network namespace is a privileged operation (root or - // CAP_SYS_ADMIN are required), and most applications should leave this set - // to 0. - NetNS int -} - -// High-level methods which provide convenience over raw system calls. - -// Close closes the underlying file descriptor for the Conn, which also causes -// all in-flight I/O operations to immediately unblock and return errors. Any -// subsequent uses of Conn will result in EBADF. -func (c *Conn) Close() error { - // The caller has expressed an intent to close the socket, so immediately - // increment s.closed to force further calls to result in EBADF before also - // closing the file descriptor to unblock any outstanding operations. - // - // Because other operations simply check for s.closed != 0, we will permit - // double Close, which would increment s.closed beyond 1. - if atomic.AddUint32(&c.closed, 1) != 1 { - // Multiple Close calls. - return nil - } - - return os.NewSyscallError("close", c.fd.Close()) -} - -// CloseRead shuts down the reading side of the Conn. Most callers should just -// use Close. -func (c *Conn) CloseRead() error { return c.Shutdown(unix.SHUT_RD) } - -// CloseWrite shuts down the writing side of the Conn. Most callers should just -// use Close. -func (c *Conn) CloseWrite() error { return c.Shutdown(unix.SHUT_WR) } - -// Read reads directly from the underlying file descriptor. -func (c *Conn) Read(b []byte) (int, error) { return c.fd.Read(b) } - -// ReadContext reads from the underlying file descriptor with added support for -// context cancelation. -func (c *Conn) ReadContext(ctx context.Context, b []byte) (int, error) { - if c.facts.isStream && len(b) > maxRW { - b = b[:maxRW] - } - - n, err := readT(ctx, c, "read", func(fd int) (int, error) { - return unix.Read(fd, b) - }) - if n == 0 && err == nil && c.facts.zeroReadIsEOF { - return 0, io.EOF - } - - return n, os.NewSyscallError("read", err) -} - -// Write writes directly to the underlying file descriptor. -func (c *Conn) Write(b []byte) (int, error) { return c.fd.Write(b) } - -// WriteContext writes to the underlying file descriptor with added support for -// context cancelation. -func (c *Conn) WriteContext(ctx context.Context, b []byte) (int, error) { - var ( - n, nn int - err error - ) - - doErr := c.write(ctx, "write", func(fd int) error { - lenb := len(b) - if c.facts.isStream && lenb-nn > maxRW { - lenb = nn + maxRW - } - - n, err = unix.Write(fd, b[nn:lenb]) - if n > 0 { - nn += n - } - if nn == len(b) { - return err - } - if n == 0 && err == nil { - err = io.ErrUnexpectedEOF - return nil - } - - return err - }) - if doErr != nil { - return 0, doErr - } - - return nn, os.NewSyscallError("write", err) -} - -// SetDeadline sets both the read and write deadlines associated with the Conn. -func (c *Conn) SetDeadline(t time.Time) error { return c.fd.SetDeadline(t) } - -// SetReadDeadline sets the read deadline associated with the Conn. -func (c *Conn) SetReadDeadline(t time.Time) error { return c.fd.SetReadDeadline(t) } - -// SetWriteDeadline sets the write deadline associated with the Conn. -func (c *Conn) SetWriteDeadline(t time.Time) error { return c.fd.SetWriteDeadline(t) } - -// ReadBuffer gets the size of the operating system's receive buffer associated -// with the Conn. -func (c *Conn) ReadBuffer() (int, error) { - return c.GetsockoptInt(unix.SOL_SOCKET, unix.SO_RCVBUF) -} - -// WriteBuffer gets the size of the operating system's transmit buffer -// associated with the Conn. -func (c *Conn) WriteBuffer() (int, error) { - return c.GetsockoptInt(unix.SOL_SOCKET, unix.SO_SNDBUF) -} - -// SetReadBuffer sets the size of the operating system's receive buffer -// associated with the Conn. -// -// When called with elevated privileges on Linux, the SO_RCVBUFFORCE option will -// be used to override operating system limits. Otherwise SO_RCVBUF is used -// (which obeys operating system limits). -func (c *Conn) SetReadBuffer(bytes int) error { return c.setReadBuffer(bytes) } - -// SetWriteBuffer sets the size of the operating system's transmit buffer -// associated with the Conn. -// -// When called with elevated privileges on Linux, the SO_SNDBUFFORCE option will -// be used to override operating system limits. Otherwise SO_SNDBUF is used -// (which obeys operating system limits). -func (c *Conn) SetWriteBuffer(bytes int) error { return c.setWriteBuffer(bytes) } - -// SyscallConn returns a raw network connection. This implements the -// syscall.Conn interface. -// -// SyscallConn is intended for advanced use cases, such as getting and setting -// arbitrary socket options using the socket's file descriptor. If possible, -// those operations should be performed using methods on Conn instead. -// -// Once invoked, it is the caller's responsibility to ensure that operations -// performed using Conn and the syscall.RawConn do not conflict with each other. -func (c *Conn) SyscallConn() (syscall.RawConn, error) { - if atomic.LoadUint32(&c.closed) != 0 { - return nil, os.NewSyscallError("syscallconn", unix.EBADF) - } - - // TODO(mdlayher): mutex or similar to enforce syscall.RawConn contract of - // FD remaining valid for duration of calls? - return c.rc, nil -} - -// Socket wraps the socket(2) system call to produce a Conn. domain, typ, and -// proto are passed directly to socket(2), and name should be a unique name for -// the socket type such as "netlink" or "vsock". -// -// The cfg parameter specifies optional configuration for the Conn. If nil, no -// additional configuration will be applied. -// -// If the operating system supports SOCK_CLOEXEC and SOCK_NONBLOCK, they are -// automatically applied to typ to mirror the standard library's socket flag -// behaviors. -func Socket(domain, typ, proto int, name string, cfg *Config) (*Conn, error) { - if cfg == nil { - cfg = &Config{} - } - - if cfg.NetNS == 0 { - // Non-Linux or no network namespace. - return socket(domain, typ, proto, name) - } - - // Linux only: create Conn in the specified network namespace. - return withNetNS(cfg.NetNS, func() (*Conn, error) { - return socket(domain, typ, proto, name) - }) -} - -// socket is the internal, cross-platform entry point for socket(2). -func socket(domain, typ, proto int, name string) (*Conn, error) { - var ( - fd int - err error - ) - - for { - fd, err = unix.Socket(domain, typ|socketFlags, proto) - switch { - case err == nil: - // Some OSes already set CLOEXEC with typ. - if !flagCLOEXEC { - unix.CloseOnExec(fd) - } - - // No error, prepare the Conn. - return New(fd, name) - case !ready(err): - // System call interrupted or not ready, try again. - continue - case err == unix.EINVAL, err == unix.EPROTONOSUPPORT: - // On Linux, SOCK_NONBLOCK and SOCK_CLOEXEC were introduced in - // 2.6.27. On FreeBSD, both flags were introduced in FreeBSD 10. - // EINVAL and EPROTONOSUPPORT check for earlier versions of these - // OSes respectively. - // - // Mirror what the standard library does when creating file - // descriptors: avoid racing a fork/exec with the creation of new - // file descriptors, so that child processes do not inherit socket - // file descriptors unexpectedly. - // - // For a more thorough explanation, see similar work in the Go tree: - // func sysSocket in net/sock_cloexec.go, as well as the detailed - // comment in syscall/exec_unix.go. - syscall.ForkLock.RLock() - fd, err = unix.Socket(domain, typ, proto) - if err != nil { - syscall.ForkLock.RUnlock() - return nil, os.NewSyscallError("socket", err) - } - unix.CloseOnExec(fd) - syscall.ForkLock.RUnlock() - - return New(fd, name) - default: - // Unhandled error. - return nil, os.NewSyscallError("socket", err) - } - } -} - -// FileConn returns a copy of the network connection corresponding to the open -// file. It is the caller's responsibility to close the file when finished. -// Closing the Conn does not affect the File, and closing the File does not -// affect the Conn. -func FileConn(f *os.File, name string) (*Conn, error) { - // First we'll try to do fctnl(2) with F_DUPFD_CLOEXEC because we can dup - // the file descriptor and set the flag in one syscall. - fd, err := unix.FcntlInt(f.Fd(), unix.F_DUPFD_CLOEXEC, 0) - switch err { - case nil: - // OK, ready to set up non-blocking I/O. - return New(fd, name) - case unix.EINVAL: - // The kernel rejected our fcntl(2), fall back to separate dup(2) and - // setting close on exec. - // - // Mirror what the standard library does when creating file descriptors: - // avoid racing a fork/exec with the creation of new file descriptors, - // so that child processes do not inherit socket file descriptors - // unexpectedly. - syscall.ForkLock.RLock() - fd, err := unix.Dup(fd) - if err != nil { - syscall.ForkLock.RUnlock() - return nil, os.NewSyscallError("dup", err) - } - unix.CloseOnExec(fd) - syscall.ForkLock.RUnlock() - - return New(fd, name) - default: - // Any other errors. - return nil, os.NewSyscallError("fcntl", err) - } -} - -// New wraps an existing file descriptor to create a Conn. name should be a -// unique name for the socket type such as "netlink" or "vsock". -// -// Most callers should use Socket or FileConn to construct a Conn. New is -// intended for integrating with specific system calls which provide a file -// descriptor that supports asynchronous I/O. The file descriptor is immediately -// set to nonblocking mode and registered with Go's runtime network poller for -// future I/O operations. -// -// Unlike FileConn, New does not duplicate the existing file descriptor in any -// way. The returned Conn takes ownership of the underlying file descriptor. -func New(fd int, name string) (*Conn, error) { - // All Conn I/O is nonblocking for integration with Go's runtime network - // poller. Depending on the OS this might already be set but it can't hurt - // to set it again. - if err := unix.SetNonblock(fd, true); err != nil { - return nil, os.NewSyscallError("setnonblock", err) - } - - // os.NewFile registers the non-blocking file descriptor with the runtime - // poller, which is then used for most subsequent operations except those - // that require raw I/O via SyscallConn. - // - // See also: https://golang.org/pkg/os/#NewFile - f := os.NewFile(uintptr(fd), name) - rc, err := f.SyscallConn() - if err != nil { - return nil, err - } - - c := &Conn{ - name: name, - fd: f, - rc: rc, - } - - // Probe the file descriptor for socket settings. - sotype, err := c.GetsockoptInt(unix.SOL_SOCKET, unix.SO_TYPE) - switch { - case err == nil: - // File is a socket, check its properties. - c.facts = facts{ - isStream: sotype == unix.SOCK_STREAM, - zeroReadIsEOF: sotype != unix.SOCK_DGRAM && sotype != unix.SOCK_RAW, - } - case errors.Is(err, unix.ENOTSOCK): - // File is not a socket, treat it as a regular file. - c.facts = facts{ - isStream: true, - zeroReadIsEOF: true, - } - default: - return nil, err - } - - return c, nil -} - -// Low-level methods which provide raw system call access. - -// Accept wraps accept(2) or accept4(2) depending on the operating system, but -// returns a Conn for the accepted connection rather than a raw file descriptor. -// -// If the operating system supports accept4(2) (which allows flags), -// SOCK_CLOEXEC and SOCK_NONBLOCK are automatically applied to flags to mirror -// the standard library's socket flag behaviors. -// -// If the operating system only supports accept(2) (which does not allow flags) -// and flags is not zero, an error will be returned. -// -// Accept obeys context cancelation and uses the deadline set on the context to -// cancel accepting the next connection. If a deadline is set on ctx, this -// deadline will override any previous deadlines set using SetDeadline or -// SetReadDeadline. Upon return, the read deadline is cleared. -func (c *Conn) Accept(ctx context.Context, flags int) (*Conn, unix.Sockaddr, error) { - type ret struct { - nfd int - sa unix.Sockaddr - } - - r, err := readT(ctx, c, sysAccept, func(fd int) (ret, error) { - // Either accept(2) or accept4(2) depending on the OS. - nfd, sa, err := accept(fd, flags|socketFlags) - return ret{nfd, sa}, err - }) - if err != nil { - // internal/poll, context error, or user function error. - return nil, nil, err - } - - // Successfully accepted a connection, wrap it in a Conn for use by the - // caller. - ac, err := New(r.nfd, c.name) - if err != nil { - return nil, nil, err - } - - return ac, r.sa, nil -} - -// Bind wraps bind(2). -func (c *Conn) Bind(sa unix.Sockaddr) error { - return c.control("bind", func(fd int) error { return unix.Bind(fd, sa) }) -} - -// Connect wraps connect(2). In order to verify that the underlying socket is -// connected to a remote peer, Connect calls getpeername(2) and returns the -// unix.Sockaddr from that call. -// -// Connect obeys context cancelation and uses the deadline set on the context to -// cancel connecting to a remote peer. If a deadline is set on ctx, this -// deadline will override any previous deadlines set using SetDeadline or -// SetWriteDeadline. Upon return, the write deadline is cleared. -func (c *Conn) Connect(ctx context.Context, sa unix.Sockaddr) (unix.Sockaddr, error) { - const op = "connect" - - // TODO(mdlayher): it would seem that trying to connect to unbound vsock - // listeners by calling Connect multiple times results in ECONNRESET for the - // first and nil error for subsequent calls. Do we need to memoize the - // error? Check what the stdlib behavior is. - - var ( - // Track progress between invocations of the write closure. We don't - // have an explicit WaitWrite call like internal/poll does, so we have - // to wait until the runtime calls the closure again to indicate we can - // write. - progress atomic.Uint32 - - // Capture closure sockaddr and error. - rsa unix.Sockaddr - err error - ) - - doErr := c.write(ctx, op, func(fd int) error { - if progress.Add(1) == 1 { - // First call: initiate connect. - return unix.Connect(fd, sa) - } - - // Subsequent calls: the runtime network poller indicates fd is - // writable. Check for errno. - errno, gerr := c.GetsockoptInt(unix.SOL_SOCKET, unix.SO_ERROR) - if gerr != nil { - return gerr - } - if errno != 0 { - // Connection is still not ready or failed. If errno indicates - // the socket is not ready, we will wait for the next write - // event. Otherwise we propagate this errno back to the as a - // permanent error. - uerr := unix.Errno(errno) - err = uerr - return uerr - } - - // According to internal/poll, it's possible for the runtime network - // poller to spuriously wake us and return errno 0 for SO_ERROR. - // Make sure we are actually connected to a peer. - peer, err := c.Getpeername() - if err != nil { - // internal/poll unconditionally goes back to WaitWrite. - // Synthesize an error that will do the same for us. - return unix.EAGAIN - } - - // Connection complete. - rsa = peer - return nil - }) - if doErr != nil { - // internal/poll or context error. - return nil, doErr - } - - if err == unix.EISCONN { - // TODO(mdlayher): is this block obsolete with the addition of the - // getsockopt SO_ERROR check above? - // - // EISCONN is reported if the socket is already established and should - // not be treated as an error. - // - Darwin reports this for at least TCP sockets - // - Linux reports this for at least AF_VSOCK sockets - return rsa, nil - } - - return rsa, os.NewSyscallError(op, err) -} - -// Getsockname wraps getsockname(2). -func (c *Conn) Getsockname() (unix.Sockaddr, error) { - return controlT(c, "getsockname", unix.Getsockname) -} - -// Getpeername wraps getpeername(2). -func (c *Conn) Getpeername() (unix.Sockaddr, error) { - return controlT(c, "getpeername", unix.Getpeername) -} - -// GetsockoptICMPv6Filter wraps getsockopt(2) for *unix.ICMPv6Filter values. -func (c *Conn) GetsockoptICMPv6Filter(level, opt int) (*unix.ICMPv6Filter, error) { - return controlT(c, "getsockopt", func(fd int) (*unix.ICMPv6Filter, error) { - return unix.GetsockoptICMPv6Filter(fd, level, opt) - }) -} - -// GetsockoptInt wraps getsockopt(2) for integer values. -func (c *Conn) GetsockoptInt(level, opt int) (int, error) { - return controlT(c, "getsockopt", func(fd int) (int, error) { - return unix.GetsockoptInt(fd, level, opt) - }) -} - -// GetsockoptString wraps getsockopt(2) for string values. -func (c *Conn) GetsockoptString(level, opt int) (string, error) { - return controlT(c, "getsockopt", func(fd int) (string, error) { - return unix.GetsockoptString(fd, level, opt) - }) -} - -// Listen wraps listen(2). -func (c *Conn) Listen(n int) error { - return c.control("listen", func(fd int) error { return unix.Listen(fd, n) }) -} - -// Recvmsg wraps recvmsg(2). -func (c *Conn) Recvmsg(ctx context.Context, p, oob []byte, flags int) (int, int, int, unix.Sockaddr, error) { - type ret struct { - n, oobn, recvflags int - from unix.Sockaddr - } - - r, err := readT(ctx, c, "recvmsg", func(fd int) (ret, error) { - n, oobn, recvflags, from, err := unix.Recvmsg(fd, p, oob, flags) - return ret{n, oobn, recvflags, from}, err - }) - if r.n == 0 && err == nil && c.facts.zeroReadIsEOF { - return 0, 0, 0, nil, io.EOF - } - - return r.n, r.oobn, r.recvflags, r.from, err -} - -// Recvfrom wraps recvfrom(2). -func (c *Conn) Recvfrom(ctx context.Context, p []byte, flags int) (int, unix.Sockaddr, error) { - type ret struct { - n int - addr unix.Sockaddr - } - - out, err := readT(ctx, c, "recvfrom", func(fd int) (ret, error) { - n, addr, err := unix.Recvfrom(fd, p, flags) - return ret{n, addr}, err - }) - if out.n == 0 && err == nil && c.facts.zeroReadIsEOF { - return 0, nil, io.EOF - } - - return out.n, out.addr, err -} - -// Sendmsg wraps sendmsg(2). -func (c *Conn) Sendmsg(ctx context.Context, p, oob []byte, to unix.Sockaddr, flags int) (int, error) { - return writeT(ctx, c, "sendmsg", func(fd int) (int, error) { - return unix.SendmsgN(fd, p, oob, to, flags) - }) -} - -// Sendto wraps sendto(2). -func (c *Conn) Sendto(ctx context.Context, p []byte, flags int, to unix.Sockaddr) error { - return c.write(ctx, "sendto", func(fd int) error { - return unix.Sendto(fd, p, flags, to) - }) -} - -// SetsockoptICMPv6Filter wraps setsockopt(2) for *unix.ICMPv6Filter values. -func (c *Conn) SetsockoptICMPv6Filter(level, opt int, filter *unix.ICMPv6Filter) error { - return c.control("setsockopt", func(fd int) error { - return unix.SetsockoptICMPv6Filter(fd, level, opt, filter) - }) -} - -// SetsockoptInt wraps setsockopt(2) for integer values. -func (c *Conn) SetsockoptInt(level, opt, value int) error { - return c.control("setsockopt", func(fd int) error { - return unix.SetsockoptInt(fd, level, opt, value) - }) -} - -// SetsockoptString wraps setsockopt(2) for string values. -func (c *Conn) SetsockoptString(level, opt int, value string) error { - return c.control("setsockopt", func(fd int) error { - return unix.SetsockoptString(fd, level, opt, value) - }) -} - -// Shutdown wraps shutdown(2). -func (c *Conn) Shutdown(how int) error { - return c.control("shutdown", func(fd int) error { return unix.Shutdown(fd, how) }) -} - -// Conn low-level read/write/control functions. These functions mirror the -// syscall.RawConn APIs but the input closures return errors rather than -// booleans. - -// read wraps readT to execute a function and capture its error result. This is -// a convenience wrapper for functions which don't return any extra values. -func (c *Conn) read(ctx context.Context, op string, f func(fd int) error) error { - _, err := readT(ctx, c, op, func(fd int) (struct{}, error) { - return struct{}{}, f(fd) - }) - return err -} - -// write executes f, a write function, against the associated file descriptor. -// op is used to create an *os.SyscallError if the file descriptor is closed. -func (c *Conn) write(ctx context.Context, op string, f func(fd int) error) error { - _, err := writeT(ctx, c, op, func(fd int) (struct{}, error) { - return struct{}{}, f(fd) - }) - return err -} - -// readT executes c.rc.Read for op using the input function, returning a newly -// allocated result T. -func readT[T any](ctx context.Context, c *Conn, op string, f func(fd int) (T, error)) (T, error) { - return rwT(c, rwContext[T]{ - Context: ctx, - Type: read, - Op: op, - Do: f, - }) -} - -// writeT executes c.rc.Write for op using the input function, returning a newly -// allocated result T. -func writeT[T any](ctx context.Context, c *Conn, op string, f func(fd int) (T, error)) (T, error) { - return rwT(c, rwContext[T]{ - Context: ctx, - Type: write, - Op: op, - Do: f, - }) -} - -// readWrite indicates if an operation intends to read or write. -type readWrite bool - -// Possible readWrite values. -const ( - read readWrite = false - write readWrite = true -) - -// An rwContext provides arguments to rwT. -type rwContext[T any] struct { - // The caller's context passed for cancelation. - Context context.Context - - // The type of an operation: read or write. - Type readWrite - - // The name of the operation used in errors. - Op string - - // The actual function to perform. - Do func(fd int) (T, error) -} - -// rwT executes c.rc.Read or c.rc.Write (depending on the value of rw.Type) for -// rw.Op using the input function, returning a newly allocated result T. -// -// It obeys context cancelation and the rw.Context must not be nil. -func rwT[T any](c *Conn, rw rwContext[T]) (T, error) { - if atomic.LoadUint32(&c.closed) != 0 { - // If the file descriptor is already closed, do nothing. - return *new(T), os.NewSyscallError(rw.Op, unix.EBADF) - } - - if err := rw.Context.Err(); err != nil { - // Early exit due to context cancel. - return *new(T), os.NewSyscallError(rw.Op, err) - } - - var ( - // The read or write function used to access the runtime network poller. - poll func(func(uintptr) bool) error - - // The read or write function used to set the matching deadline. - deadline func(time.Time) error - ) - - if rw.Type == write { - poll = c.rc.Write - deadline = c.SetWriteDeadline - } else { - poll = c.rc.Read - deadline = c.SetReadDeadline - } - - var ( - // Whether or not the context carried a deadline we are actively using - // for cancelation. - setDeadline bool - - // Signals for the cancelation watcher goroutine. - wg sync.WaitGroup - doneC = make(chan struct{}) - - // Atomic: reports whether we have to disarm the deadline. - needDisarm atomic.Bool - ) - - // On cancel, clean up the watcher. - defer func() { - close(doneC) - wg.Wait() - }() - - if d, ok := rw.Context.Deadline(); ok { - // The context has an explicit deadline. We will use it for cancelation - // but disarm it after poll for the next call. - if err := deadline(d); err != nil { - return *new(T), err - } - setDeadline = true - needDisarm.Store(true) - } else { - // The context does not have an explicit deadline. We have to watch for - // cancelation so we can propagate that signal to immediately unblock - // the runtime network poller. - // - // TODO(mdlayher): is it possible to detect a background context vs a - // context with possible future cancel? - wg.Go(func() { - - select { - case <-rw.Context.Done(): - // Cancel the operation. Make the caller disarm after poll - // returns. - needDisarm.Store(true) - _ = deadline(time.Unix(0, 1)) - case <-doneC: - // Nothing to do. - } - }) - } - - var ( - t T - err error - ) - - pollErr := poll(func(fd uintptr) bool { - t, err = rw.Do(int(fd)) - return ready(err) - }) - - if needDisarm.Load() { - _ = deadline(time.Time{}) - } - - if pollErr != nil { - if rw.Context.Err() != nil || (setDeadline && errors.Is(pollErr, os.ErrDeadlineExceeded)) { - // The caller canceled the operation or we set a deadline internally - // and it was reached. - // - // Unpack a plain context error. We wait for the context to be done - // to synchronize state externally. Otherwise we have noticed I/O - // timeout wakeups when we set a deadline but the context was not - // yet marked done. - <-rw.Context.Done() - return *new(T), os.NewSyscallError(rw.Op, rw.Context.Err()) - } - - // Error from syscall.RawConn methods. Conventionally the standard - // library does not wrap internal/poll errors in os.NewSyscallError. - return *new(T), pollErr - } - - // Result from user function. - return t, os.NewSyscallError(rw.Op, err) -} - -// control executes Conn.control for op using the input function. -func (c *Conn) control(op string, f func(fd int) error) error { - _, err := controlT(c, op, func(fd int) (struct{}, error) { - return struct{}{}, f(fd) - }) - return err -} - -// controlT executes c.rc.Control for op using the input function, returning a -// newly allocated result T. -func controlT[T any](c *Conn, op string, f func(fd int) (T, error)) (T, error) { - if atomic.LoadUint32(&c.closed) != 0 { - // If the file descriptor is already closed, do nothing. - return *new(T), os.NewSyscallError(op, unix.EBADF) - } - - var ( - t T - err error - ) - - doErr := c.rc.Control(func(fd uintptr) { - // Repeatedly attempt the syscall(s) invoked by f until completion is - // indicated by the return value of ready or the context is canceled. - // - // The last values for t and err are captured outside of the closure for - // use when the loop breaks. - for { - t, err = f(int(fd)) - if ready(err) { - return - } - } - }) - if doErr != nil { - // Error from syscall.RawConn methods. Conventionally the standard - // library does not wrap internal/poll errors in os.NewSyscallError. - return *new(T), doErr - } - - // Result from user function. - return t, os.NewSyscallError(op, err) -} - -// ready indicates readiness based on the value of err. -func ready(err error) bool { - switch err { - case unix.EAGAIN, unix.EINPROGRESS, unix.EINTR: - // When a socket is in non-blocking mode, we might see a variety of errors: - // - EAGAIN: most common case for a socket read not being ready - // - EINPROGRESS: reported by some sockets when first calling connect - // - EINTR: system call interrupted, more frequently occurs in Go 1.14+ - // because goroutines can be asynchronously preempted - // - // Return false to let the poller wait for readiness. See the source code - // for internal/poll.FD.RawRead for more details. - return false - default: - // Ready regardless of whether there was an error or no error. - return true - } -} - -// Darwin and FreeBSD can't read or write 2GB+ files at a time, -// even on 64-bit systems. -// The same is true of socket implementations on many systems. -// See golang.org/issue/7812 and golang.org/issue/16266. -// Use 1GB instead of, say, 2GB-1, to keep subsequent reads aligned. -const maxRW = 1 << 30 diff --git a/vendor/github.com/mdlayher/socket/conn_linux.go b/vendor/github.com/mdlayher/socket/conn_linux.go deleted file mode 100644 index b1cdffbdc6..0000000000 --- a/vendor/github.com/mdlayher/socket/conn_linux.go +++ /dev/null @@ -1,117 +0,0 @@ -//go:build linux - -package socket - -import ( - "context" - "os" - "unsafe" - - "golang.org/x/net/bpf" - "golang.org/x/sys/unix" -) - -// IoctlKCMClone wraps ioctl(2) for unix.KCMClone values, but returns a Conn -// rather than a raw file descriptor. -func (c *Conn) IoctlKCMClone() (*Conn, error) { - info, err := controlT(c, "ioctl", unix.IoctlKCMClone) - if err != nil { - return nil, err - } - - // Successful clone, wrap in a Conn for use by the caller. - return New(int(info.Fd), c.name) -} - -// IoctlKCMAttach wraps ioctl(2) for unix.KCMAttach values. -func (c *Conn) IoctlKCMAttach(info unix.KCMAttach) error { - return c.control("ioctl", func(fd int) error { - return unix.IoctlKCMAttach(fd, info) - }) -} - -// IoctlKCMUnattach wraps ioctl(2) for unix.KCMUnattach values. -func (c *Conn) IoctlKCMUnattach(info unix.KCMUnattach) error { - return c.control("ioctl", func(fd int) error { - return unix.IoctlKCMUnattach(fd, info) - }) -} - -// PidfdGetfd wraps pidfd_getfd(2) for a Conn which wraps a pidfd, but returns a -// Conn rather than a raw file descriptor. -func (c *Conn) PidfdGetfd(targetFD, flags int) (*Conn, error) { - outFD, err := controlT(c, "pidfd_getfd", func(fd int) (int, error) { - return unix.PidfdGetfd(fd, targetFD, flags) - }) - if err != nil { - return nil, err - } - - // Successful getfd, wrap in a Conn for use by the caller. - return New(outFD, c.name) -} - -// PidfdSendSignal wraps pidfd_send_signal(2) for a Conn which wraps a Linux -// pidfd. -func (c *Conn) PidfdSendSignal(sig unix.Signal, info *unix.Siginfo, flags int) error { - return c.control("pidfd_send_signal", func(fd int) error { - return unix.PidfdSendSignal(fd, sig, info, flags) - }) -} - -// SetBPF attaches an assembled BPF program to a Conn. -func (c *Conn) SetBPF(filter []bpf.RawInstruction) error { - // We can't point to the first instruction in the array if no instructions - // are present. - if len(filter) == 0 { - return os.NewSyscallError("setsockopt", unix.EINVAL) - } - - prog := unix.SockFprog{ - Len: uint16(len(filter)), - Filter: (*unix.SockFilter)(unsafe.Pointer(&filter[0])), - } - - return c.SetsockoptSockFprog(unix.SOL_SOCKET, unix.SO_ATTACH_FILTER, &prog) -} - -// RemoveBPF removes a BPF filter from a Conn. -func (c *Conn) RemoveBPF() error { - // 0 argument is ignored. - return c.SetsockoptInt(unix.SOL_SOCKET, unix.SO_DETACH_FILTER, 0) -} - -// SetsockoptPacketMreq wraps setsockopt(2) for unix.PacketMreq values. -func (c *Conn) SetsockoptPacketMreq(level, opt int, mreq *unix.PacketMreq) error { - return c.control("setsockopt", func(fd int) error { - return unix.SetsockoptPacketMreq(fd, level, opt, mreq) - }) -} - -// SetsockoptSockFprog wraps setsockopt(2) for unix.SockFprog values. -func (c *Conn) SetsockoptSockFprog(level, opt int, fprog *unix.SockFprog) error { - return c.control("setsockopt", func(fd int) error { - return unix.SetsockoptSockFprog(fd, level, opt, fprog) - }) -} - -// GetsockoptTpacketStats wraps getsockopt(2) for unix.TpacketStats values. -func (c *Conn) GetsockoptTpacketStats(level, name int) (*unix.TpacketStats, error) { - return controlT(c, "getsockopt", func(fd int) (*unix.TpacketStats, error) { - return unix.GetsockoptTpacketStats(fd, level, name) - }) -} - -// GetsockoptTpacketStatsV3 wraps getsockopt(2) for unix.TpacketStatsV3 values. -func (c *Conn) GetsockoptTpacketStatsV3(level, name int) (*unix.TpacketStatsV3, error) { - return controlT(c, "getsockopt", func(fd int) (*unix.TpacketStatsV3, error) { - return unix.GetsockoptTpacketStatsV3(fd, level, name) - }) -} - -// Waitid wraps waitid(2). -func (c *Conn) Waitid(idType int, info *unix.Siginfo, options int, rusage *unix.Rusage) error { - return c.read(context.Background(), "waitid", func(fd int) error { - return unix.Waitid(idType, fd, info, options, rusage) - }) -} diff --git a/vendor/github.com/mdlayher/socket/doc.go b/vendor/github.com/mdlayher/socket/doc.go deleted file mode 100644 index 7d4566c90b..0000000000 --- a/vendor/github.com/mdlayher/socket/doc.go +++ /dev/null @@ -1,13 +0,0 @@ -// Package socket provides a low-level network connection type which integrates -// with Go's runtime network poller to provide asynchronous I/O and deadline -// support. -// -// This package focuses on UNIX-like operating systems which make use of BSD -// sockets system call APIs. It is meant to be used as a foundation for the -// creation of operating system-specific socket packages, for socket families -// such as Linux's AF_NETLINK, AF_PACKET, or AF_VSOCK. This package should not -// be used directly in end user applications. -// -// Any use of package socket should be guarded by build tags, as one would also -// use when importing the syscall or golang.org/x/sys packages. -package socket diff --git a/vendor/github.com/mdlayher/socket/netns_linux.go b/vendor/github.com/mdlayher/socket/netns_linux.go deleted file mode 100644 index 9f37b77029..0000000000 --- a/vendor/github.com/mdlayher/socket/netns_linux.go +++ /dev/null @@ -1,149 +0,0 @@ -//go:build linux - -package socket - -import ( - "errors" - "fmt" - "os" - "runtime" - - "golang.org/x/sync/errgroup" - "golang.org/x/sys/unix" -) - -// errNetNSDisabled is returned when network namespaces are unavailable on -// a given system. -var errNetNSDisabled = errors.New("socket: Linux network namespaces are not enabled on this system") - -// withNetNS invokes fn within the context of the network namespace specified by -// fd, while also managing the logic required to safely do so by manipulating -// thread-local state. -func withNetNS(fd int, fn func() (*Conn, error)) (*Conn, error) { - var ( - eg errgroup.Group - conn *Conn - ) - - eg.Go(func() error { - // Retrieve and store the calling OS thread's network namespace so the - // thread can be reassigned to it after creating a socket in another network - // namespace. - runtime.LockOSThread() - - ns, err := threadNetNS() - if err != nil { - // No thread-local manipulation, unlock. - runtime.UnlockOSThread() - return err - } - defer ns.Close() - - // Beyond this point, the thread's network namespace is poisoned. Do not - // unlock the OS thread until all network namespace manipulation completes - // to avoid returning to the caller with altered thread-local state. - - // Assign the current OS thread the goroutine is locked to to the given - // network namespace. - if err := ns.Set(fd); err != nil { - return err - } - - // Attempt Conn creation and unconditionally restore the original namespace. - c, err := fn() - if nerr := ns.Restore(); nerr != nil { - // Failed to restore original namespace. Return an error and allow the - // runtime to terminate the thread. - if err == nil { - _ = c.Close() - } - - return nerr - } - - // No more thread-local state manipulation; return the new Conn. - runtime.UnlockOSThread() - conn = c - return err - }) - - if err := eg.Wait(); err != nil { - return nil, err - } - - return conn, nil -} - -// A netNS is a handle that can manipulate network namespaces. -// -// Operations performed on a netNS must use runtime.LockOSThread before -// manipulating any network namespaces. -type netNS struct { - // The handle to a network namespace. - f *os.File - - // Indicates if network namespaces are disabled on this system, and thus - // operations should become a no-op or return errors. - disabled bool -} - -// threadNetNS constructs a netNS using the network namespace of the calling -// thread. If the namespace is not the default namespace, runtime.LockOSThread -// should be invoked first. -func threadNetNS() (*netNS, error) { - return fileNetNS(fmt.Sprintf("/proc/self/task/%d/ns/net", unix.Gettid())) -} - -// fileNetNS opens file and creates a netNS. fileNetNS should only be called -// directly in tests. -func fileNetNS(file string) (*netNS, error) { - f, err := os.Open(file) - switch { - case err == nil: - return &netNS{f: f}, nil - case os.IsNotExist(err): - // Network namespaces are not enabled on this system. Use this signal - // to return errors elsewhere if the caller explicitly asks for a - // network namespace to be set. - return &netNS{disabled: true}, nil - default: - return nil, err - } -} - -// Close releases the handle to a network namespace. -func (n *netNS) Close() error { - return n.do(func() error { return n.f.Close() }) -} - -// FD returns a file descriptor which represents the network namespace. -func (n *netNS) FD() int { - if n.disabled { - // No reasonable file descriptor value in this case, so specify a - // non-existent one. - return -1 - } - - return int(n.f.Fd()) -} - -// Restore restores the original network namespace for the calling thread. -func (n *netNS) Restore() error { - return n.do(func() error { return n.Set(n.FD()) }) -} - -// Set sets a new network namespace for the current thread using fd. -func (n *netNS) Set(fd int) error { - return n.do(func() error { - return os.NewSyscallError("setns", unix.Setns(fd, unix.CLONE_NEWNET)) - }) -} - -// do runs fn if network namespaces are enabled on this system. -func (n *netNS) do(fn func() error) error { - if n.disabled { - return errNetNSDisabled - } - - return fn() -} diff --git a/vendor/github.com/mdlayher/socket/netns_others.go b/vendor/github.com/mdlayher/socket/netns_others.go deleted file mode 100644 index 4cceb3d047..0000000000 --- a/vendor/github.com/mdlayher/socket/netns_others.go +++ /dev/null @@ -1,14 +0,0 @@ -//go:build !linux -// +build !linux - -package socket - -import ( - "fmt" - "runtime" -) - -// withNetNS returns an error on non-Linux systems. -func withNetNS(_ int, _ func() (*Conn, error)) (*Conn, error) { - return nil, fmt.Errorf("socket: Linux network namespace support is not available on %s", runtime.GOOS) -} diff --git a/vendor/github.com/mdlayher/socket/setbuffer_linux.go b/vendor/github.com/mdlayher/socket/setbuffer_linux.go deleted file mode 100644 index ae631893a6..0000000000 --- a/vendor/github.com/mdlayher/socket/setbuffer_linux.go +++ /dev/null @@ -1,23 +0,0 @@ -//go:build linux - -package socket - -import "golang.org/x/sys/unix" - -// setReadBuffer wraps the SO_RCVBUF{,FORCE} setsockopt(2) options. -func (c *Conn) setReadBuffer(bytes int) error { - err := c.SetsockoptInt(unix.SOL_SOCKET, unix.SO_RCVBUFFORCE, bytes) - if err != nil { - err = c.SetsockoptInt(unix.SOL_SOCKET, unix.SO_RCVBUF, bytes) - } - return err -} - -// setWriteBuffer wraps the SO_SNDBUF{,FORCE} setsockopt(2) options. -func (c *Conn) setWriteBuffer(bytes int) error { - err := c.SetsockoptInt(unix.SOL_SOCKET, unix.SO_SNDBUFFORCE, bytes) - if err != nil { - err = c.SetsockoptInt(unix.SOL_SOCKET, unix.SO_SNDBUF, bytes) - } - return err -} diff --git a/vendor/github.com/mdlayher/socket/setbuffer_others.go b/vendor/github.com/mdlayher/socket/setbuffer_others.go deleted file mode 100644 index 72b36dbe31..0000000000 --- a/vendor/github.com/mdlayher/socket/setbuffer_others.go +++ /dev/null @@ -1,16 +0,0 @@ -//go:build !linux -// +build !linux - -package socket - -import "golang.org/x/sys/unix" - -// setReadBuffer wraps the SO_RCVBUF setsockopt(2) option. -func (c *Conn) setReadBuffer(bytes int) error { - return c.SetsockoptInt(unix.SOL_SOCKET, unix.SO_RCVBUF, bytes) -} - -// setWriteBuffer wraps the SO_SNDBUF setsockopt(2) option. -func (c *Conn) setWriteBuffer(bytes int) error { - return c.SetsockoptInt(unix.SOL_SOCKET, unix.SO_SNDBUF, bytes) -} diff --git a/vendor/github.com/mdlayher/socket/typ_cloexec_nonblock.go b/vendor/github.com/mdlayher/socket/typ_cloexec_nonblock.go deleted file mode 100644 index f4a7e559b3..0000000000 --- a/vendor/github.com/mdlayher/socket/typ_cloexec_nonblock.go +++ /dev/null @@ -1,11 +0,0 @@ -//go:build !darwin - -package socket - -import "golang.org/x/sys/unix" - -const ( - // These operating systems support CLOEXEC and NONBLOCK socket options. - flagCLOEXEC = true - socketFlags = unix.SOCK_CLOEXEC | unix.SOCK_NONBLOCK -) diff --git a/vendor/github.com/mdlayher/socket/typ_none.go b/vendor/github.com/mdlayher/socket/typ_none.go deleted file mode 100644 index 9bbb1aab5f..0000000000 --- a/vendor/github.com/mdlayher/socket/typ_none.go +++ /dev/null @@ -1,11 +0,0 @@ -//go:build darwin -// +build darwin - -package socket - -const ( - // These operating systems do not support CLOEXEC and NONBLOCK socket - // options. - flagCLOEXEC = false - socketFlags = 0 -) diff --git a/vendor/github.com/mdlayher/vsock/.gitignore b/vendor/github.com/mdlayher/vsock/.gitignore deleted file mode 100644 index 8130d4158a..0000000000 --- a/vendor/github.com/mdlayher/vsock/.gitignore +++ /dev/null @@ -1,4 +0,0 @@ -cover.out -vsock.test -cmd/vscp/vscp -cmd/vsockhttp/vsockhttp diff --git a/vendor/github.com/mdlayher/vsock/.golangci.yml b/vendor/github.com/mdlayher/vsock/.golangci.yml deleted file mode 100644 index 7237e2714d..0000000000 --- a/vendor/github.com/mdlayher/vsock/.golangci.yml +++ /dev/null @@ -1,21 +0,0 @@ -version: "2" -linters: - enable: - # - errorlint - - misspell - - modernize - - revive - exclusions: - generated: lax - presets: - - comments - - common-false-positives - - legacy - - std-error-handling - rules: - - linters: - - errcheck - path: _test.go -formatters: - exclusions: - generated: lax diff --git a/vendor/github.com/mdlayher/vsock/CHANGELOG.md b/vendor/github.com/mdlayher/vsock/CHANGELOG.md deleted file mode 100644 index aae7486351..0000000000 --- a/vendor/github.com/mdlayher/vsock/CHANGELOG.md +++ /dev/null @@ -1,59 +0,0 @@ -# CHANGELOG - -## v1.3.0 - -- [Improvement]: Updated dependencies and now requires Go 1.25. (#63) -- [Improvement]: Update to use net.ErrClosed error (#57) -- [Tests]: Check for ENETUNREACH and ETIMEDOUT in tests (#54) - -## v1.2.1 - -- [Improvement]: updated dependencies, test with Go 1.20. - -## v1.2.0 - -**This is the first release of package vsock that only supports Go 1.18+. Users -on older versions of Go must use v1.1.1.** - -- [Improvement]: drop support for older versions of Go so we can begin using - modern versions of `x/sys` and other dependencies. - -## v1.1.1 - -**This is the last release of package vsock that supports Go 1.17 and below.** - -- [Bug Fix] [commit](https://github.com/mdlayher/vsock/commit/ead86435c244d5d6baad549a6df0557ada3f4401): - fix build on non-UNIX platforms such as Windows. This is a no-op change on - Linux but provides a friendlier experience for non-Linux users. - -## v1.1.0 - -- [New API] [commit](https://github.com/mdlayher/vsock/commit/44cd82dc5f7de644436f22236b111ab97fa9a14f): - `vsock.FileListener` can be used to create a `vsock.Listener` from an existing - `os.File`, which may be provided by systemd socket activation or another - external mechanism. - -## v1.0.1 - -- [Bug Fix] [commit](https://github.com/mdlayher/vsock/commit/99a6dccdebad21d1fa5f757d228d677ccb1412dc): - upgrade `github.com/mdlayher/socket` to handle non-blocking `connect(2)` - errors (called in `vsock.Dial`) properly by checking the `SO_ERROR` socket - option. Lock in this behavior with a new test. -- [Improvement] [commit](https://github.com/mdlayher/vsock/commit/375f3bbcc363500daf367ec511638a4655471719): - downgrade the version of `golang.org/x/net` in use to support Go 1.12. We - don't need the latest version for this package. - -## v1.0.0 - -**This is the first release of package vsock that only supports Go 1.12+. -Users on older versions of Go must use an unstable release.** - -- Initial stable commit! -- [API change]: the `vsock.Dial` and `vsock.Listen` constructors now accept an - optional `*vsock.Config` parameter to enable future expansion in v1.x.x - without prompting further breaking API changes. Because `vsock.Config` has no - options as of this release, `nil` may be passed in all call sites to fix - existing code upon upgrading to v1.0.0. -- [New API]: the `vsock.ListenContextID` function can be used to create a - `*vsock.Listener` which is bound to an explicit context ID address, rather - than inferring one automatically as `vsock.Listen` does. diff --git a/vendor/github.com/mdlayher/vsock/LICENSE.md b/vendor/github.com/mdlayher/vsock/LICENSE.md deleted file mode 100644 index 9fa6774b14..0000000000 --- a/vendor/github.com/mdlayher/vsock/LICENSE.md +++ /dev/null @@ -1,9 +0,0 @@ -# MIT License - -Copyright (C) 2017-2022 Matt Layher - -Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/vendor/github.com/mdlayher/vsock/README.md b/vendor/github.com/mdlayher/vsock/README.md deleted file mode 100644 index b1ec4cfbe1..0000000000 --- a/vendor/github.com/mdlayher/vsock/README.md +++ /dev/null @@ -1,21 +0,0 @@ -# vsock [![Test Status](https://github.com/mdlayher/vsock/workflows/Linux%20Test/badge.svg)](https://github.com/mdlayher/vsock/actions) [![Go Reference](https://pkg.go.dev/badge/github.com/mdlayher/vsock.svg)](https://pkg.go.dev/github.com/mdlayher/vsock) [![Go Report Card](https://goreportcard.com/badge/github.com/mdlayher/vsock)](https://goreportcard.com/report/github.com/mdlayher/vsock) - -Package `vsock` provides access to Linux VM sockets (`AF_VSOCK`) for -communication between a hypervisor and its virtual machines. MIT Licensed. - -For more information about VM sockets, see my blog about -[Linux VM sockets in Go](https://mdlayher.com/blog/linux-vm-sockets-in-go/) or -the [QEMU wiki page on virtio-vsock](http://wiki.qemu-project.org/Features/VirtioVsock). - -## Stability - -See the [CHANGELOG](./CHANGELOG.md) file for a description of changes between -releases. - -This package has a stable v1 API and any future breaking changes will prompt -the release of a new major version. Features and bug fixes will continue to -occur in the v1.x.x series. - -This package only supports the two most recent major versions of Go, mirroring -Go's own release policy. Older versions of Go may lack critical features and bug -fixes which are necessary for this package to function correctly. diff --git a/vendor/github.com/mdlayher/vsock/conn_linux.go b/vendor/github.com/mdlayher/vsock/conn_linux.go deleted file mode 100644 index 46902d4fca..0000000000 --- a/vendor/github.com/mdlayher/vsock/conn_linux.go +++ /dev/null @@ -1,61 +0,0 @@ -//go:build linux - -package vsock - -import ( - "context" - - "github.com/mdlayher/socket" - "golang.org/x/sys/unix" -) - -// A conn is the net.Conn implementation for connection-oriented VM sockets. -// We can use socket.Conn directly on Linux to implement all of the necessary -// methods. -type conn = socket.Conn - -// dial is the entry point for Dial on Linux. -func dial(cid, port uint32, _ *Config) (*Conn, error) { - // TODO(mdlayher): Config default nil check and initialize. Pass options to - // socket.Config where necessary. - - c, err := socket.Socket(unix.AF_VSOCK, unix.SOCK_STREAM, 0, "vsock", nil) - if err != nil { - return nil, err - } - - sa := &unix.SockaddrVM{CID: cid, Port: port} - rsa, err := c.Connect(context.Background(), sa) - if err != nil { - _ = c.Close() - return nil, err - } - - // TODO(mdlayher): getpeername(2) appears to return nil in the GitHub CI - // environment, so in the event of a nil sockaddr, fall back to the previous - // method of synthesizing the remote address. - if rsa == nil { - rsa = sa - } - - lsa, err := c.Getsockname() - if err != nil { - _ = c.Close() - return nil, err - } - - lsavm := lsa.(*unix.SockaddrVM) - rsavm := rsa.(*unix.SockaddrVM) - - return &Conn{ - c: c, - local: &Addr{ - ContextID: lsavm.CID, - Port: lsavm.Port, - }, - remote: &Addr{ - ContextID: rsavm.CID, - Port: rsavm.Port, - }, - }, nil -} diff --git a/vendor/github.com/mdlayher/vsock/doc.go b/vendor/github.com/mdlayher/vsock/doc.go deleted file mode 100644 index e158b18361..0000000000 --- a/vendor/github.com/mdlayher/vsock/doc.go +++ /dev/null @@ -1,10 +0,0 @@ -// Package vsock provides access to Linux VM sockets (AF_VSOCK) for -// communication between a hypervisor and its virtual machines. -// -// The types in this package implement interfaces provided by package net and -// may be used in applications that expect a net.Listener or net.Conn. -// -// - *Addr implements net.Addr -// - *Conn implements net.Conn -// - *Listener implements net.Listener -package vsock diff --git a/vendor/github.com/mdlayher/vsock/fd_linux.go b/vendor/github.com/mdlayher/vsock/fd_linux.go deleted file mode 100644 index 25c6e6761a..0000000000 --- a/vendor/github.com/mdlayher/vsock/fd_linux.go +++ /dev/null @@ -1,36 +0,0 @@ -package vsock - -import ( - "fmt" - "os" - - "golang.org/x/sys/unix" -) - -// contextID retrieves the local context ID for this system. -func contextID() (uint32, error) { - f, err := os.Open(devVsock) - if err != nil { - return 0, err - } - defer f.Close() - - return unix.IoctlGetUint32(int(f.Fd()), unix.IOCTL_VM_SOCKETS_GET_LOCAL_CID) -} - -// isErrno determines if an error a matches UNIX error number. -func isErrno(err error, errno int) bool { - switch errno { - case ebadf: - return err == unix.EBADF - case enotconn: - return err == unix.ENOTCONN - default: - panicf("vsock: isErrno called with unhandled error number parameter: %d", errno) - return false - } -} - -func panicf(format string, a ...any) { - panic(fmt.Sprintf(format, a...)) -} diff --git a/vendor/github.com/mdlayher/vsock/listener_linux.go b/vendor/github.com/mdlayher/vsock/listener_linux.go deleted file mode 100644 index 3416368f3f..0000000000 --- a/vendor/github.com/mdlayher/vsock/listener_linux.go +++ /dev/null @@ -1,132 +0,0 @@ -//go:build linux - -package vsock - -import ( - "context" - "net" - "os" - "time" - - "github.com/mdlayher/socket" - "golang.org/x/sys/unix" -) - -var _ net.Listener = &listener{} - -// A listener is the net.Listener implementation for connection-oriented -// VM sockets. -type listener struct { - c *socket.Conn - addr *Addr -} - -// Addr and Close implement the net.Listener interface for listener. -func (l *listener) Addr() net.Addr { return l.addr } -func (l *listener) Close() error { return l.c.Close() } -func (l *listener) SetDeadline(t time.Time) error { return l.c.SetDeadline(t) } - -// Accept accepts a single connection from the listener, and sets up -// a net.Conn backed by conn. -func (l *listener) Accept() (net.Conn, error) { - c, rsa, err := l.c.Accept(context.Background(), 0) - if err != nil { - return nil, err - } - - savm := rsa.(*unix.SockaddrVM) - remote := &Addr{ - ContextID: savm.CID, - Port: savm.Port, - } - - return &Conn{ - c: c, - local: l.addr, - remote: remote, - }, nil -} - -// name is the socket name passed to package socket. -const name = "vsock" - -// listen is the entry point for Listen on Linux. -func listen(cid, port uint32, _ *Config) (*Listener, error) { - // TODO(mdlayher): Config default nil check and initialize. Pass options to - // socket.Config where necessary. - - c, err := socket.Socket(unix.AF_VSOCK, unix.SOCK_STREAM, 0, name, nil) - if err != nil { - return nil, err - } - - // Be sure to close the Conn if any of the system calls fail before we - // return the Conn to the caller. - - if port == 0 { - port = unix.VMADDR_PORT_ANY - } - - if err := c.Bind(&unix.SockaddrVM{CID: cid, Port: port}); err != nil { - _ = c.Close() - return nil, err - } - - if err := c.Listen(unix.SOMAXCONN); err != nil { - _ = c.Close() - return nil, err - } - - l, err := newListener(c) - if err != nil { - _ = c.Close() - return nil, err - } - - return l, nil -} - -// fileListener is the entry point for FileListener on Linux. -func fileListener(f *os.File) (*Listener, error) { - c, err := socket.FileConn(f, name) - if err != nil { - return nil, err - } - - l, err := newListener(c) - if err != nil { - _ = c.Close() - return nil, err - } - - return l, nil -} - -// newListener creates a Listener from a raw socket.Conn. -func newListener(c *socket.Conn) (*Listener, error) { - lsa, err := c.Getsockname() - if err != nil { - return nil, err - } - - // Now that the library can also accept arbitrary os.Files, we have to - // verify the address family so we don't accidentally create a - // *vsock.Listener backed by TCP or some other socket type. - lsavm, ok := lsa.(*unix.SockaddrVM) - if !ok { - // All errors should wrapped with os.SyscallError. - return nil, os.NewSyscallError("listen", unix.EINVAL) - } - - addr := &Addr{ - ContextID: lsavm.CID, - Port: lsavm.Port, - } - - return &Listener{ - l: &listener{ - c: c, - addr: addr, - }, - }, nil -} diff --git a/vendor/github.com/mdlayher/vsock/vsock.go b/vendor/github.com/mdlayher/vsock/vsock.go deleted file mode 100644 index 1cc05202e5..0000000000 --- a/vendor/github.com/mdlayher/vsock/vsock.go +++ /dev/null @@ -1,434 +0,0 @@ -package vsock - -import ( - "fmt" - "io" - "net" - "os" - "strings" - "syscall" - "time" -) - -const ( - // Hypervisor specifies that a socket should communicate with the hypervisor - // process. Note that this is _not_ the same as a socket owned by a process - // running on the hypervisor. Most users should probably use Host instead. - Hypervisor = 0x0 - - // Local specifies that a socket should communicate with a matching socket - // on the same machine. This provides an alternative to UNIX sockets or - // similar and may be useful in testing VM sockets applications. - Local = 0x1 - - // Host specifies that a socket should communicate with processes other than - // the hypervisor on the host machine. This is the correct choice to - // communicate with a process running on a hypervisor using a socket dialed - // from a guest. - Host = 0x2 - - // Error numbers we recognize, copied here to avoid importing x/sys/unix in - // cross-platform code. - ebadf = 9 - enotconn = 107 - - // devVsock is the location of /dev/vsock. It is exposed on both the - // hypervisor and on virtual machines. - devVsock = "/dev/vsock" - - // network is the vsock network reported in net.OpError. - network = "vsock" - - // Operation names which may be returned in net.OpError. - opAccept = "accept" - opClose = "close" - opDial = "dial" - opListen = "listen" - opRawControl = "raw-control" - opRawRead = "raw-read" - opRawWrite = "raw-write" - opRead = "read" - opSet = "set" - opSyscallConn = "syscall-conn" - opWrite = "write" -) - -// TODO(mdlayher): plumb through socket.Config.NetNS if it makes sense. - -// Config contains options for a Conn or Listener. -type Config struct{} - -// Listen opens a connection-oriented net.Listener for incoming VM sockets -// connections. The port parameter specifies the port for the Listener. Config -// specifies optional configuration for the Listener. If config is nil, a -// default configuration will be used. -// -// To allow the server to assign a port automatically, specify 0 for port. The -// address of the server can be retrieved using the Addr method. -// -// Listen automatically infers the appropriate context ID for this machine by -// calling ContextID and passing that value to ListenContextID. Callers with -// advanced use cases (such as using the Local context ID) may wish to use -// ListenContextID directly. -// -// When the Listener is no longer needed, Close must be called to free -// resources. -func Listen(port uint32, cfg *Config) (*Listener, error) { - cid, err := ContextID() - if err != nil { - // No addresses available. - return nil, opError(opListen, err, nil, nil) - } - - return ListenContextID(cid, port, cfg) -} - -// ListenContextID is the same as Listen, but also accepts an explicit context -// ID parameter. This function is intended for advanced use cases and most -// callers should use Listen instead. -// -// See the documentation of Listen for more details. -func ListenContextID(contextID, port uint32, cfg *Config) (*Listener, error) { - l, err := listen(contextID, port, cfg) - if err != nil { - // No remote address available. - return nil, opError(opListen, err, &Addr{ - ContextID: contextID, - Port: port, - }, nil) - } - - return l, nil -} - -// FileListener returns a copy of the network listener corresponding to an open -// os.File. It is the caller's responsibility to close the Listener when -// finished. Closing the Listener does not affect the os.File, and closing the -// os.File does not affect the Listener. -// -// This function is intended for advanced use cases and most callers should use -// Listen instead. -func FileListener(f *os.File) (*Listener, error) { - l, err := fileListener(f) - if err != nil { - // No addresses available. - return nil, opError(opListen, err, nil, nil) - } - - return l, nil -} - -var _ net.Listener = &Listener{} - -// A Listener is a VM sockets implementation of a net.Listener. -type Listener struct { - l *listener -} - -// Accept implements the Accept method in the net.Listener interface; it waits -// for the next call and returns a generic net.Conn. The returned net.Conn will -// always be of type *Conn. -func (l *Listener) Accept() (net.Conn, error) { - c, err := l.l.Accept() - if err != nil { - return nil, l.opError(opAccept, err) - } - - return c, nil -} - -// Addr returns the listener's network address, a *Addr. The Addr returned is -// shared by all invocations of Addr, so do not modify it. -func (l *Listener) Addr() net.Addr { return l.l.Addr() } - -// Close stops listening on the VM sockets address. Already Accepted connections -// are not closed. -func (l *Listener) Close() error { - return l.opError(opClose, l.l.Close()) -} - -// SetDeadline sets the deadline associated with the listener. A zero time value -// disables the deadline. -func (l *Listener) SetDeadline(t time.Time) error { - return l.opError(opSet, l.l.SetDeadline(t)) -} - -// opError is a convenience for the function opError that also passes the local -// address of the Listener. -func (l *Listener) opError(op string, err error) error { - // No remote address for a Listener. - return opError(op, err, l.Addr(), nil) -} - -// Dial dials a connection-oriented net.Conn to a VM sockets listener. The -// context ID and port parameters specify the address of the listener. Config -// specifies optional configuration for the Conn. If config is nil, a default -// configuration will be used. -// -// If dialing a connection from the hypervisor to a virtual machine, the VM's -// context ID should be specified. -// -// If dialing from a VM to the hypervisor, Hypervisor should be used to -// communicate with the hypervisor process, or Host should be used to -// communicate with other processes on the host machine. -// -// When the connection is no longer needed, Close must be called to free -// resources. -func Dial(contextID, port uint32, cfg *Config) (*Conn, error) { - c, err := dial(contextID, port, cfg) - if err != nil { - // No local address, but we have a remote address we can return. - return nil, opError(opDial, err, nil, &Addr{ - ContextID: contextID, - Port: port, - }) - } - - return c, nil -} - -var ( - _ net.Conn = &Conn{} - _ syscall.Conn = &Conn{} -) - -// A Conn is a VM sockets implementation of a net.Conn. -type Conn struct { - c *conn - local *Addr - remote *Addr -} - -// Close closes the connection. -func (c *Conn) Close() error { - return c.opError(opClose, c.c.Close()) -} - -// CloseRead shuts down the reading side of the VM sockets connection. Most -// callers should just use Close. -func (c *Conn) CloseRead() error { - return c.opError(opClose, c.c.CloseRead()) -} - -// CloseWrite shuts down the writing side of the VM sockets connection. Most -// callers should just use Close. -func (c *Conn) CloseWrite() error { - return c.opError(opClose, c.c.CloseWrite()) -} - -// LocalAddr returns the local network address. The Addr returned is shared by -// all invocations of LocalAddr, so do not modify it. -func (c *Conn) LocalAddr() net.Addr { return c.local } - -// RemoteAddr returns the remote network address. The Addr returned is shared by -// all invocations of RemoteAddr, so do not modify it. -func (c *Conn) RemoteAddr() net.Addr { return c.remote } - -// Read implements the net.Conn Read method. -func (c *Conn) Read(b []byte) (int, error) { - n, err := c.c.Read(b) - if err != nil { - return n, c.opError(opRead, err) - } - - return n, nil -} - -// Write implements the net.Conn Write method. -func (c *Conn) Write(b []byte) (int, error) { - n, err := c.c.Write(b) - if err != nil { - return n, c.opError(opWrite, err) - } - - return n, nil -} - -// SetDeadline implements the net.Conn SetDeadline method. -func (c *Conn) SetDeadline(t time.Time) error { - return c.opError(opSet, c.c.SetDeadline(t)) -} - -// SetReadDeadline implements the net.Conn SetReadDeadline method. -func (c *Conn) SetReadDeadline(t time.Time) error { - return c.opError(opSet, c.c.SetReadDeadline(t)) -} - -// SetWriteDeadline implements the net.Conn SetWriteDeadline method. -func (c *Conn) SetWriteDeadline(t time.Time) error { - return c.opError(opSet, c.c.SetWriteDeadline(t)) -} - -// SyscallConn returns a raw network connection. This implements the -// syscall.Conn interface. -func (c *Conn) SyscallConn() (syscall.RawConn, error) { - rc, err := c.c.SyscallConn() - if err != nil { - return nil, c.opError(opSyscallConn, err) - } - - return &rawConn{ - rc: rc, - local: c.local, - remote: c.remote, - }, nil -} - -// opError is a convenience for the function opError that also passes the local -// and remote addresses of the Conn. -func (c *Conn) opError(op string, err error) error { - return opError(op, err, c.local, c.remote) -} - -// TODO(mdlayher): see if we can port smarter net.OpError with local/remote -// address error logic into socket.Conn's SyscallConn type to avoid the need for -// this wrapper. - -var _ syscall.RawConn = &rawConn{} - -// A rawConn is a syscall.RawConn that wraps an internal syscall.RawConn in order -// to produce net.OpError error values. -type rawConn struct { - rc syscall.RawConn - local, remote *Addr -} - -// Control implements the syscall.RawConn Control method. -func (rc *rawConn) Control(fn func(fd uintptr)) error { - return rc.opError(opRawControl, rc.rc.Control(fn)) -} - -// Control implements the syscall.RawConn Read method. -func (rc *rawConn) Read(fn func(fd uintptr) (done bool)) error { - return rc.opError(opRawRead, rc.rc.Read(fn)) -} - -// Control implements the syscall.RawConn Write method. -func (rc *rawConn) Write(fn func(fd uintptr) (done bool)) error { - return rc.opError(opRawWrite, rc.rc.Write(fn)) -} - -// opError is a convenience for the function opError that also passes the local -// and remote addresses of the rawConn. -func (rc *rawConn) opError(op string, err error) error { - return opError(op, err, rc.local, rc.remote) -} - -var _ net.Addr = &Addr{} - -// An Addr is the address of a VM sockets endpoint. -type Addr struct { - ContextID, Port uint32 -} - -// Network returns the address's network name, "vsock". -func (a *Addr) Network() string { return network } - -// String returns a human-readable representation of Addr, and indicates if -// ContextID is meant to be used for a hypervisor, host, VM, etc. -func (a *Addr) String() string { - var host string - - switch a.ContextID { - case Hypervisor: - host = fmt.Sprintf("hypervisor(%d)", a.ContextID) - case Local: - host = fmt.Sprintf("local(%d)", a.ContextID) - case Host: - host = fmt.Sprintf("host(%d)", a.ContextID) - default: - host = fmt.Sprintf("vm(%d)", a.ContextID) - } - - return fmt.Sprintf("%s:%d", host, a.Port) -} - -// fileName returns a file name for use with os.NewFile for Addr. -func (a *Addr) fileName() string { - return fmt.Sprintf("%s:%s", a.Network(), a.String()) -} - -// ContextID retrieves the local VM sockets context ID for this system. -// ContextID can be used to directly determine if a system is capable of using -// VM sockets. -// -// If the kernel module is unavailable, access to the kernel module is denied, -// or VM sockets are unsupported on this system, it returns an error. -func ContextID() (uint32, error) { - return contextID() -} - -// opError unpacks err if possible, producing a net.OpError with the input -// parameters in order to implement net.Conn. As a convenience, opError returns -// nil if the input error is nil. -func opError(op string, err error, local, remote net.Addr) error { - if err == nil { - return nil - } - - // TODO(mdlayher): this entire function is suspect and should probably be - // looked at carefully, especially with Go 1.13+ error wrapping. - // - // Eventually this *net.OpError logic should probably be ported into - // mdlayher/socket because similar checks are necessary to comply with - // nettest.TestConn. - - // Unwrap inner errors from error types. - // - // TODO(mdlayher): errors.Cause or similar in Go 1.13. - switch xerr := err.(type) { - // os.PathError produced by os.File method calls. - case *os.PathError: - // Although we could make use of xerr.Op here, we're passing it manually - // for consistency, since some of the Conn calls we are making don't - // wrap an os.File, which would return an Op for us. - // - // As a special case, if the error is related to access to the /dev/vsock - // device, we don't unwrap it, so the caller has more context as to why - // their operation actually failed than "permission denied" or similar. - if xerr.Path != devVsock { - err = xerr.Err - } - } - - switch { - case err == io.EOF, isErrno(err, enotconn): - // We may see a literal io.EOF as happens with x/net/nettest, but - // "transport not connected" also means io.EOF in Go. - return io.EOF - case err == os.ErrClosed, isErrno(err, ebadf), strings.Contains(err.Error(), "use of closed"): - // Different operations may return different errors that all effectively - // indicate a closed file. - // - // To rectify the differences, net.TCPConn uses an error with this text - // from internal/poll for the backing file already being closed. - err = net.ErrClosed - default: - // Nothing to do, return this directly. - } - - // Determine source and addr using the rules defined by net.OpError's - // documentation: https://golang.org/pkg/net/#OpError. - var source, addr net.Addr - switch op { - case opClose, opDial, opRawRead, opRawWrite, opRead, opWrite: - if local != nil { - source = local - } - if remote != nil { - addr = remote - } - case opAccept, opListen, opRawControl, opSet, opSyscallConn: - if local != nil { - addr = local - } - } - - return &net.OpError{ - Op: op, - Net: network, - Source: source, - Addr: addr, - Err: err, - } -} diff --git a/vendor/github.com/mdlayher/vsock/vsock_others.go b/vendor/github.com/mdlayher/vsock/vsock_others.go deleted file mode 100644 index 5c1e88e398..0000000000 --- a/vendor/github.com/mdlayher/vsock/vsock_others.go +++ /dev/null @@ -1,45 +0,0 @@ -//go:build !linux -// +build !linux - -package vsock - -import ( - "fmt" - "net" - "os" - "runtime" - "syscall" - "time" -) - -// errUnimplemented is returned by all functions on platforms that -// cannot make use of VM sockets. -var errUnimplemented = fmt.Errorf("vsock: not implemented on %s", runtime.GOOS) - -func fileListener(_ *os.File) (*Listener, error) { return nil, errUnimplemented } -func listen(_, _ uint32, _ *Config) (*Listener, error) { return nil, errUnimplemented } - -type listener struct{} - -func (*listener) Accept() (net.Conn, error) { return nil, errUnimplemented } -func (*listener) Addr() net.Addr { return nil } -func (*listener) Close() error { return errUnimplemented } -func (*listener) SetDeadline(_ time.Time) error { return errUnimplemented } - -func dial(_, _ uint32, _ *Config) (*Conn, error) { return nil, errUnimplemented } - -type conn struct{} - -func (*conn) Close() error { return errUnimplemented } -func (*conn) CloseRead() error { return errUnimplemented } -func (*conn) CloseWrite() error { return errUnimplemented } -func (*conn) Read(_ []byte) (int, error) { return 0, errUnimplemented } -func (*conn) Write(_ []byte) (int, error) { return 0, errUnimplemented } -func (*conn) SetDeadline(_ time.Time) error { return errUnimplemented } -func (*conn) SetReadDeadline(_ time.Time) error { return errUnimplemented } -func (*conn) SetWriteDeadline(_ time.Time) error { return errUnimplemented } -func (*conn) SyscallConn() (syscall.RawConn, error) { return nil, errUnimplemented } - -func contextID() (uint32, error) { return 0, errUnimplemented } - -func isErrno(_ error, _ int) bool { return false } diff --git a/vendor/github.com/miekg/dns/.codecov.yml b/vendor/github.com/miekg/dns/.codecov.yml deleted file mode 100644 index f91e5c1fe5..0000000000 --- a/vendor/github.com/miekg/dns/.codecov.yml +++ /dev/null @@ -1,8 +0,0 @@ -coverage: - status: - project: - default: - target: 40% - threshold: null - patch: false - changes: false diff --git a/vendor/github.com/miekg/dns/.gitignore b/vendor/github.com/miekg/dns/.gitignore deleted file mode 100644 index 776cd950c2..0000000000 --- a/vendor/github.com/miekg/dns/.gitignore +++ /dev/null @@ -1,4 +0,0 @@ -*.6 -tags -test.out -a.out diff --git a/vendor/github.com/miekg/dns/AUTHORS b/vendor/github.com/miekg/dns/AUTHORS deleted file mode 100644 index 1965683525..0000000000 --- a/vendor/github.com/miekg/dns/AUTHORS +++ /dev/null @@ -1 +0,0 @@ -Miek Gieben diff --git a/vendor/github.com/miekg/dns/CODEOWNERS b/vendor/github.com/miekg/dns/CODEOWNERS deleted file mode 100644 index e0917031bc..0000000000 --- a/vendor/github.com/miekg/dns/CODEOWNERS +++ /dev/null @@ -1 +0,0 @@ -* @miekg @tmthrgd diff --git a/vendor/github.com/miekg/dns/CONTRIBUTORS b/vendor/github.com/miekg/dns/CONTRIBUTORS deleted file mode 100644 index 5903779d81..0000000000 --- a/vendor/github.com/miekg/dns/CONTRIBUTORS +++ /dev/null @@ -1,10 +0,0 @@ -Alex A. Skinner -Andrew Tunnell-Jones -Ask Bjørn Hansen -Dave Cheney -Dusty Wilson -Marek Majkowski -Peter van Dijk -Omri Bahumi -Alex Sergeyev -James Hartig diff --git a/vendor/github.com/miekg/dns/COPYRIGHT b/vendor/github.com/miekg/dns/COPYRIGHT deleted file mode 100644 index 35702b10e8..0000000000 --- a/vendor/github.com/miekg/dns/COPYRIGHT +++ /dev/null @@ -1,9 +0,0 @@ -Copyright 2009 The Go Authors. All rights reserved. Use of this source code -is governed by a BSD-style license that can be found in the LICENSE file. -Extensions of the original work are copyright (c) 2011 Miek Gieben - -Copyright 2011 Miek Gieben. All rights reserved. Use of this source code is -governed by a BSD-style license that can be found in the LICENSE file. - -Copyright 2014 CloudFlare. All rights reserved. Use of this source code is -governed by a BSD-style license that can be found in the LICENSE file. diff --git a/vendor/github.com/miekg/dns/LICENSE b/vendor/github.com/miekg/dns/LICENSE deleted file mode 100644 index 852ab9ced4..0000000000 --- a/vendor/github.com/miekg/dns/LICENSE +++ /dev/null @@ -1,29 +0,0 @@ -BSD 3-Clause License - -Copyright (c) 2009, The Go Authors. Extensions copyright (c) 2011, Miek Gieben. -All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - -1. Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. - -2. Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - -3. Neither the name of the copyright holder nor the names of its - contributors may be used to endorse or promote products derived from - this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE -FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, -OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/miekg/dns/Makefile.fuzz b/vendor/github.com/miekg/dns/Makefile.fuzz deleted file mode 100644 index dc158c4ace..0000000000 --- a/vendor/github.com/miekg/dns/Makefile.fuzz +++ /dev/null @@ -1,33 +0,0 @@ -# Makefile for fuzzing -# -# Use go-fuzz and needs the tools installed. -# See https://blog.cloudflare.com/dns-parser-meet-go-fuzzer/ -# -# Installing go-fuzz: -# $ make -f Makefile.fuzz get -# Installs: -# * github.com/dvyukov/go-fuzz/go-fuzz -# * get github.com/dvyukov/go-fuzz/go-fuzz-build - -all: build - -.PHONY: build -build: - go-fuzz-build -tags fuzz github.com/miekg/dns - -.PHONY: build-newrr -build-newrr: - go-fuzz-build -func FuzzNewRR -tags fuzz github.com/miekg/dns - -.PHONY: fuzz -fuzz: - go-fuzz -bin=dns-fuzz.zip -workdir=fuzz - -.PHONY: get -get: - go get github.com/dvyukov/go-fuzz/go-fuzz - go get github.com/dvyukov/go-fuzz/go-fuzz-build - -.PHONY: clean -clean: - rm *-fuzz.zip diff --git a/vendor/github.com/miekg/dns/Makefile.release b/vendor/github.com/miekg/dns/Makefile.release deleted file mode 100644 index a0ce9b712d..0000000000 --- a/vendor/github.com/miekg/dns/Makefile.release +++ /dev/null @@ -1,52 +0,0 @@ -# Makefile for releasing. -# -# The release is controlled from version.go. The version found there is -# used to tag the git repo, we're not building any artifacts so there is nothing -# to upload to github. -# -# * Up the version in version.go -# * Run: make -f Makefile.release release -# * will *commit* your change with 'Release $VERSION' -# * push to github -# - -define GO -//+build ignore - -package main - -import ( - "fmt" - - "github.com/miekg/dns" -) - -func main() { - fmt.Println(dns.Version.String()) -} -endef - -$(file > version_release.go,$(GO)) -VERSION:=$(shell go run version_release.go) -TAG="v$(VERSION)" - -all: - @echo Use the \'release\' target to start a release $(VERSION) - rm -f version_release.go - -.PHONY: release -release: commit push - @echo Released $(VERSION) - rm -f version_release.go - -.PHONY: commit -commit: - @echo Committing release $(VERSION) - git commit -am"Release $(VERSION)" - git tag $(TAG) - -.PHONY: push -push: - @echo Pushing release $(VERSION) to master - git push --tags - git push diff --git a/vendor/github.com/miekg/dns/README.md b/vendor/github.com/miekg/dns/README.md deleted file mode 100644 index 8dc2472360..0000000000 --- a/vendor/github.com/miekg/dns/README.md +++ /dev/null @@ -1,219 +0,0 @@ -[![Build Status](https://travis-ci.org/miekg/dns.svg?branch=master)](https://travis-ci.org/miekg/dns) -[![Code Coverage](https://img.shields.io/codecov/c/github/miekg/dns/master.svg)](https://codecov.io/github/miekg/dns?branch=master) -[![Go Report Card](https://goreportcard.com/badge/github.com/miekg/dns)](https://goreportcard.com/report/miekg/dns) -[![](https://godoc.org/github.com/miekg/dns?status.svg)](https://godoc.org/github.com/miekg/dns) - -DNS version 2 is now available at , check it out if you want to -help shape the next 15 years of the Go DNS package. - -The version here will see no new features and less and less development, and my time (if any) will be fully -devoted towards v2. - -**December 2025**: v2 should be (already) a good replacement, the coming months would be a good time to -migrate, see [this file describing the -differences](https://codeberg.org/miekg/dns/src/branch/main/README-diff-with-v1.md), to help you get started. - -# Alternative (more granular) approach to a DNS library - -> Less is more. - -Complete and usable DNS library. All Resource Records are supported, including the DNSSEC types. -It follows a lean and mean philosophy. If there is stuff you should know as a DNS programmer there -isn't a convenience function for it. Server side and client side programming is supported, i.e. you -can build servers and resolvers with it. - -We try to keep the "master" branch as sane as possible and at the bleeding edge of standards, -avoiding breaking changes wherever reasonable. We support the last two versions of Go. - -# Goals - -- KISS; -- Fast; -- Small API. If it's easy to code in Go, don't make a function for it. - -# Users - -A not-so-up-to-date-list-that-may-be-actually-current: - -- https://github.com/coredns/coredns -- https://github.com/abh/geodns -- https://github.com/baidu/bfe -- http://www.statdns.com/ -- http://www.dnsinspect.com/ -- https://github.com/chuangbo/jianbing-dictionary-dns -- http://www.dns-lg.com/ -- https://github.com/fcambus/rrda -- https://github.com/kenshinx/godns -- https://github.com/skynetservices/skydns -- https://github.com/hashicorp/consul -- https://github.com/DevelopersPL/godnsagent -- https://github.com/duedil-ltd/discodns -- https://github.com/StalkR/dns-reverse-proxy -- https://github.com/tianon/rawdns -- https://mesosphere.github.io/mesos-dns/ -- https://github.com/fcambus/statzone -- https://github.com/benschw/dns-clb-go -- https://github.com/corny/dnscheck for -- https://github.com/miekg/unbound -- https://github.com/miekg/exdns -- https://dnslookup.org -- https://github.com/looterz/grimd -- https://github.com/phamhongviet/serf-dns -- https://github.com/mehrdadrad/mylg -- https://github.com/bamarni/dockness -- https://github.com/fffaraz/microdns -- https://github.com/ipdcode/hades -- https://github.com/StackExchange/dnscontrol/ -- https://www.dnsperf.com/ -- https://dnssectest.net/ -- https://github.com/oif/apex -- https://github.com/jedisct1/dnscrypt-proxy (migrated to v2) -- https://github.com/jedisct1/rpdns -- https://github.com/xor-gate/sshfp -- https://github.com/rs/dnstrace -- https://blitiri.com.ar/p/dnss ([github mirror](https://github.com/albertito/dnss)) -- https://render.com -- https://github.com/peterzen/goresolver -- https://github.com/folbricht/routedns -- https://domainr.com/ -- https://zonedb.org/ -- https://router7.org/ -- https://github.com/fortio/dnsping -- https://github.com/Luzilla/dnsbl_exporter -- https://github.com/bodgit/tsig -- https://github.com/v2fly/v2ray-core (test only) -- https://kuma.io/ -- https://www.misaka.io/services/dns -- https://ping.sx/dig -- https://fleetdeck.io/ -- https://github.com/markdingo/autoreverse -- https://github.com/slackhq/nebula -- https://addr.tools/ -- https://dnscheck.tools/ -- https://github.com/egbakou/domainverifier -- https://github.com/semihalev/sdns -- https://github.com/wintbiit/NineDNS -- https://linuxcontainers.org/incus/ -- https://ifconfig.es -- https://github.com/zmap/zdns -- https://framagit.org/bortzmeyer/check-soa -- https://github.com/jkerdreux-imt/owns - -Send pull request if you want to be listed here. - -# Features - -- UDP/TCP queries, IPv4 and IPv6 -- RFC 1035 zone file parsing ($INCLUDE, $ORIGIN, $TTL and $GENERATE (for all record types) are supported -- Fast -- Server side programming (mimicking the net/http package) -- Client side programming -- DNSSEC: signing, validating and key generation for DSA, RSA, ECDSA and Ed25519 -- EDNS0, NSID, Cookies -- AXFR/IXFR -- TSIG, SIG(0) -- DNS over TLS (DoT): encrypted connection between client and server over TCP -- DNS name compression - -Have fun! - -Miek Gieben - 2010-2012 - -DNS Authors 2012- - -# Building - -This library uses Go modules and uses semantic versioning. Building is done with the `go` tool, so -the following should work: - - go get github.com/miekg/dns - go build github.com/miekg/dns - -## Examples - -A short "how to use the API" is at the beginning of doc.go (this also will show when you call `godoc -github.com/miekg/dns`). - -Example programs can be found in the `github.com/miekg/exdns` repository. - -## Supported RFCs - -_all of them_ - -- 103{4,5} - DNS standard -- 1183 - ISDN, X25 and other deprecated records -- 1348 - NSAP record (removed the record) -- 1982 - Serial Arithmetic -- 1876 - LOC record -- 1995 - IXFR -- 1996 - DNS notify -- 2136 - DNS Update (dynamic updates) -- 2181 - RRset definition - there is no RRset type though, just []RR -- 2537 - RSAMD5 DNS keys -- 2065 - DNSSEC (updated in later RFCs) -- 2671 - EDNS record -- 2782 - SRV record -- 2845 - TSIG record -- 2915 - NAPTR record -- 2929 - DNS IANA Considerations -- 3110 - RSASHA1 DNS keys -- 3123 - APL record -- 3225 - DO bit (DNSSEC OK) -- 340{1,2,3} - NAPTR record -- 3445 - Limiting the scope of (DNS)KEY -- 3596 - AAAA record -- 3597 - Unknown RRs -- 4025 - A Method for Storing IPsec Keying Material in DNS -- 403{3,4,5} - DNSSEC + validation functions -- 4255 - SSHFP record -- 4343 - Case insensitivity -- 4408 - SPF record -- 4509 - SHA256 Hash in DS -- 4592 - Wildcards in the DNS -- 4635 - HMAC SHA TSIG -- 4701 - DHCID -- 4892 - id.server -- 5001 - NSID -- 5155 - NSEC3 record -- 5205 - HIP record -- 5702 - SHA2 in the DNS -- 5936 - AXFR -- 5966 - TCP implementation recommendations -- 6605 - ECDSA -- 6725 - IANA Registry Update -- 6742 - ILNP DNS -- 6840 - Clarifications and Implementation Notes for DNS Security -- 6844 - CAA record -- 6891 - EDNS0 update -- 6895 - DNS IANA considerations -- 6944 - DNSSEC DNSKEY Algorithm Status -- 6975 - Algorithm Understanding in DNSSEC -- 7043 - EUI48/EUI64 records -- 7314 - DNS (EDNS) EXPIRE Option -- 7477 - CSYNC RR -- 7828 - edns-tcp-keepalive EDNS0 Option -- 7553 - URI record -- 7858 - DNS over TLS: Initiation and Performance Considerations -- 7871 - EDNS0 Client Subnet -- 7873 - Domain Name System (DNS) Cookies -- 8080 - EdDSA for DNSSEC -- 8490 - DNS Stateful Operations -- 8499 - DNS Terminology -- 8659 - DNS Certification Authority Authorization (CAA) Resource Record -- 8777 - DNS Reverse IP Automatic Multicast Tunneling (AMT) Discovery -- 8914 - Extended DNS Errors -- 8976 - Message Digest for DNS Zones (ZONEMD RR) -- 9460 - Service Binding and Parameter Specification via the DNS -- 9461 - Service Binding Mapping for DNS Servers -- 9462 - Discovery of Designated Resolvers -- 9460 - SVCB and HTTPS Records -- 9567 - DNS Error Reporting -- 9606 - DNS Resolver Information -- 9660 - DNS Zone Version (ZONEVERSION) Option -- Draft - Compact Denial of Existence in DNSSEC - -## Loosely Based Upon - -- ldns - -- NSD - -- Net::DNS - -- GRONG - diff --git a/vendor/github.com/miekg/dns/acceptfunc.go b/vendor/github.com/miekg/dns/acceptfunc.go deleted file mode 100644 index 1a59a854ec..0000000000 --- a/vendor/github.com/miekg/dns/acceptfunc.go +++ /dev/null @@ -1,59 +0,0 @@ -package dns - -// MsgAcceptFunc is used early in the server code to accept or reject a message with RcodeFormatError. -// It returns a MsgAcceptAction to indicate what should happen with the message. -type MsgAcceptFunc func(dh Header) MsgAcceptAction - -// DefaultMsgAcceptFunc checks the request and will reject if: -// -// * isn't a request (don't respond in that case) -// -// * opcode isn't OpcodeQuery or OpcodeNotify -// -// * does not have exactly 1 question in the question section -// -// * has more than 1 RR in the Answer section -// -// * has more than 0 RRs in the Authority section -// -// * has more than 2 RRs in the Additional section -var DefaultMsgAcceptFunc MsgAcceptFunc = defaultMsgAcceptFunc - -// MsgAcceptAction represents the action to be taken. -type MsgAcceptAction int - -// Allowed returned values from a MsgAcceptFunc. -const ( - MsgAccept MsgAcceptAction = iota // Accept the message - MsgReject // Reject the message with a RcodeFormatError - MsgIgnore // Ignore the error and send nothing back. - MsgRejectNotImplemented // Reject the message with a RcodeNotImplemented -) - -func defaultMsgAcceptFunc(dh Header) MsgAcceptAction { - if isResponse := dh.Bits&_QR != 0; isResponse { - return MsgIgnore - } - - // Don't allow dynamic updates, because then the sections can contain a whole bunch of RRs. - opcode := int(dh.Bits>>11) & 0xF - if opcode != OpcodeQuery && opcode != OpcodeNotify { - return MsgRejectNotImplemented - } - - if dh.Qdcount != 1 { - return MsgReject - } - // NOTIFY requests can have a SOA in the ANSWER section. See RFC 1996 Section 3.7 and 3.11. - if dh.Ancount > 1 { - return MsgReject - } - // IXFR request could have one SOA RR in the NS section. See RFC 1995, section 3. - if dh.Nscount > 1 { - return MsgReject - } - if dh.Arcount > 2 { - return MsgReject - } - return MsgAccept -} diff --git a/vendor/github.com/miekg/dns/client.go b/vendor/github.com/miekg/dns/client.go deleted file mode 100644 index a0f96187b4..0000000000 --- a/vendor/github.com/miekg/dns/client.go +++ /dev/null @@ -1,469 +0,0 @@ -package dns - -// A client implementation. - -import ( - "context" - "crypto/tls" - "encoding/binary" - "io" - "net" - "strings" - "time" -) - -const ( - dnsTimeout time.Duration = 2 * time.Second - tcpIdleTimeout time.Duration = 8 * time.Second -) - -func isPacketConn(c net.Conn) bool { - if _, ok := c.(net.PacketConn); !ok { - return false - } - - if ua, ok := c.LocalAddr().(*net.UnixAddr); ok { - return ua.Net == "unixgram" || ua.Net == "unixpacket" - } - - return true -} - -// A Conn represents a connection to a DNS server. -type Conn struct { - net.Conn // a net.Conn holding the connection - UDPSize uint16 // minimum receive buffer for UDP messages - TsigSecret map[string]string // secret(s) for Tsig map[], zonename must be in canonical form (lowercase, fqdn, see RFC 4034 Section 6.2) - TsigProvider TsigProvider // An implementation of the TsigProvider interface. If defined it replaces TsigSecret and is used for all TSIG operations. - tsigRequestMAC string -} - -func (co *Conn) tsigProvider() TsigProvider { - if co.TsigProvider != nil { - return co.TsigProvider - } - // tsigSecretProvider will return ErrSecret if co.TsigSecret is nil. - return tsigSecretProvider(co.TsigSecret) -} - -// A Client defines parameters for a DNS client. -type Client struct { - Net string // if "tcp" or "tcp-tls" (DNS over TLS) a TCP query will be initiated, otherwise an UDP one (default is "" for UDP) - UDPSize uint16 // minimum receive buffer for UDP messages - TLSConfig *tls.Config // TLS connection configuration - Dialer *net.Dialer // a net.Dialer used to set local address, timeouts and more - // Timeout is a cumulative timeout for dial, write and read, defaults to 0 (disabled) - overrides DialTimeout, ReadTimeout, - // WriteTimeout when non-zero. Can be overridden with net.Dialer.Timeout (see Client.ExchangeWithDialer and - // Client.Dialer) or context.Context.Deadline (see ExchangeContext) - Timeout time.Duration - DialTimeout time.Duration // net.DialTimeout, defaults to 2 seconds, or net.Dialer.Timeout if expiring earlier - overridden by Timeout when that value is non-zero - ReadTimeout time.Duration // net.Conn.SetReadDeadline value for connections, defaults to 2 seconds - overridden by Timeout when that value is non-zero - WriteTimeout time.Duration // net.Conn.SetWriteDeadline value for connections, defaults to 2 seconds - overridden by Timeout when that value is non-zero - TsigSecret map[string]string // secret(s) for Tsig map[], zonename must be in canonical form (lowercase, fqdn, see RFC 4034 Section 6.2) - TsigProvider TsigProvider // An implementation of the TsigProvider interface. If defined it replaces TsigSecret and is used for all TSIG operations. - - // SingleInflight previously serialised multiple concurrent queries for the - // same Qname, Qtype and Qclass to ensure only one would be in flight at a - // time. - // - // Deprecated: This is a no-op. Callers should implement their own in flight - // query caching if needed. See github.com/miekg/dns/issues/1449. - SingleInflight bool -} - -// Exchange performs a synchronous UDP query. It sends the message m to the address -// contained in a and waits for a reply. Exchange does not retry a failed query, nor -// will it fall back to TCP in case of truncation. -// See client.Exchange for more information on setting larger buffer sizes. -func Exchange(m *Msg, a string) (r *Msg, err error) { - client := Client{Net: "udp"} - r, _, err = client.Exchange(m, a) - return r, err -} - -func (c *Client) dialTimeout() time.Duration { - if c.Timeout != 0 { - return c.Timeout - } - if c.DialTimeout != 0 { - return c.DialTimeout - } - return dnsTimeout -} - -func (c *Client) readTimeout() time.Duration { - if c.Timeout != 0 { - return c.Timeout - } - if c.ReadTimeout != 0 { - return c.ReadTimeout - } - return dnsTimeout -} - -func (c *Client) writeTimeout() time.Duration { - if c.Timeout != 0 { - return c.Timeout - } - if c.WriteTimeout != 0 { - return c.WriteTimeout - } - return dnsTimeout -} - -// Dial connects to the address on the named network. -func (c *Client) Dial(address string) (conn *Conn, err error) { - return c.DialContext(context.Background(), address) -} - -// DialContext connects to the address on the named network, with a context.Context. -func (c *Client) DialContext(ctx context.Context, address string) (conn *Conn, err error) { - // create a new dialer with the appropriate timeout - var d net.Dialer - if c.Dialer == nil { - d = net.Dialer{Timeout: c.getTimeoutForRequest(c.dialTimeout())} - } else { - d = *c.Dialer - } - - network := c.Net - if network == "" { - network = "udp" - } - - useTLS := strings.HasPrefix(network, "tcp") && strings.HasSuffix(network, "-tls") - - conn = new(Conn) - if useTLS { - network = strings.TrimSuffix(network, "-tls") - - tlsDialer := tls.Dialer{ - NetDialer: &d, - Config: c.TLSConfig, - } - conn.Conn, err = tlsDialer.DialContext(ctx, network, address) - } else { - conn.Conn, err = d.DialContext(ctx, network, address) - } - if err != nil { - return nil, err - } - conn.UDPSize = c.UDPSize - return conn, nil -} - -// Exchange performs a synchronous query. It sends the message m to the address -// contained in a and waits for a reply. Basic use pattern with a *dns.Client: -// -// c := new(dns.Client) -// in, rtt, err := c.Exchange(message, "127.0.0.1:53") -// -// Exchange does not retry a failed query, nor will it fall back to TCP in -// case of truncation. -// It is up to the caller to create a message that allows for larger responses to be -// returned. Specifically this means adding an EDNS0 OPT RR that will advertise a larger -// buffer, see SetEdns0. Messages without an OPT RR will fallback to the historic limit -// of 512 bytes -// To specify a local address or a timeout, the caller has to set the `Client.Dialer` -// attribute appropriately -func (c *Client) Exchange(m *Msg, address string) (r *Msg, rtt time.Duration, err error) { - co, err := c.Dial(address) - - if err != nil { - return nil, 0, err - } - defer co.Close() - return c.ExchangeWithConn(m, co) -} - -// ExchangeWithConn has the same behavior as Exchange, just with a predetermined connection -// that will be used instead of creating a new one. -// Usage pattern with a *dns.Client: -// -// c := new(dns.Client) -// // connection management logic goes here -// -// conn := c.Dial(address) -// in, rtt, err := c.ExchangeWithConn(message, conn) -// -// This allows users of the library to implement their own connection management, -// as opposed to Exchange, which will always use new connections and incur the added overhead -// that entails when using "tcp" and especially "tcp-tls" clients. -func (c *Client) ExchangeWithConn(m *Msg, conn *Conn) (r *Msg, rtt time.Duration, err error) { - return c.ExchangeWithConnContext(context.Background(), m, conn) -} - -// ExchangeWithConnContext has the same behaviour as ExchangeWithConn and -// additionally obeys deadlines from the passed Context. -func (c *Client) ExchangeWithConnContext(ctx context.Context, m *Msg, co *Conn) (r *Msg, rtt time.Duration, err error) { - opt := m.IsEdns0() - // If EDNS0 is used use that for size. - if opt != nil && opt.UDPSize() >= MinMsgSize { - co.UDPSize = opt.UDPSize() - } - // Otherwise use the client's configured UDP size. - if opt == nil && c.UDPSize >= MinMsgSize { - co.UDPSize = c.UDPSize - } - - // write with the appropriate write timeout - t := time.Now() - writeDeadline := t.Add(c.getTimeoutForRequest(c.writeTimeout())) - readDeadline := t.Add(c.getTimeoutForRequest(c.readTimeout())) - if deadline, ok := ctx.Deadline(); ok { - if deadline.Before(writeDeadline) { - writeDeadline = deadline - } - if deadline.Before(readDeadline) { - readDeadline = deadline - } - } - co.SetWriteDeadline(writeDeadline) - co.SetReadDeadline(readDeadline) - - co.TsigSecret, co.TsigProvider = c.TsigSecret, c.TsigProvider - - if err = co.WriteMsg(m); err != nil { - return nil, 0, err - } - - if isPacketConn(co.Conn) { - for { - r, err = co.ReadMsg() - // Ignore replies with mismatched IDs because they might be - // responses to earlier queries that timed out. - if err != nil || r.Id == m.Id { - break - } - } - } else { - r, err = co.ReadMsg() - if err == nil && r.Id != m.Id { - err = ErrId - } - } - rtt = time.Since(t) - return r, rtt, err -} - -// ReadMsg reads a message from the connection co. -// If the received message contains a TSIG record the transaction signature -// is verified. This method always tries to return the message, however if an -// error is returned there are no guarantees that the returned message is a -// valid representation of the packet read. -func (co *Conn) ReadMsg() (*Msg, error) { - p, err := co.ReadMsgHeader(nil) - if err != nil { - return nil, err - } - - m := new(Msg) - if err := m.Unpack(p); err != nil { - // If an error was returned, we still want to allow the user to use - // the message, but naively they can just check err if they don't want - // to use an erroneous message - return m, err - } - if t := m.IsTsig(); t != nil { - // Need to work on the original message p, as that was used to calculate the tsig. - err = TsigVerifyWithProvider(p, co.tsigProvider(), co.tsigRequestMAC, false) - } - return m, err -} - -// ReadMsgHeader reads a DNS message, parses and populates hdr (when hdr is not nil). -// Returns message as a byte slice to be parsed with Msg.Unpack later on. -// Note that error handling on the message body is not possible as only the header is parsed. -func (co *Conn) ReadMsgHeader(hdr *Header) ([]byte, error) { - var ( - p []byte - n int - err error - ) - - if isPacketConn(co.Conn) { - if co.UDPSize > MinMsgSize { - p = make([]byte, co.UDPSize) - } else { - p = make([]byte, MinMsgSize) - } - n, err = co.Read(p) - } else { - var length uint16 - if err := binary.Read(co.Conn, binary.BigEndian, &length); err != nil { - return nil, err - } - - p = make([]byte, length) - n, err = io.ReadFull(co.Conn, p) - } - - if err != nil { - return nil, err - } else if n < headerSize { - return nil, ErrShortRead - } - - p = p[:n] - if hdr != nil { - dh, _, err := unpackMsgHdr(p, 0) - if err != nil { - return nil, err - } - *hdr = dh - } - return p, err -} - -// Read implements the net.Conn read method. -func (co *Conn) Read(p []byte) (n int, err error) { - if co.Conn == nil { - return 0, ErrConnEmpty - } - - if isPacketConn(co.Conn) { - // UDP connection - return co.Conn.Read(p) - } - - var length uint16 - if err := binary.Read(co.Conn, binary.BigEndian, &length); err != nil { - return 0, err - } - if int(length) > len(p) { - return 0, io.ErrShortBuffer - } - - return io.ReadFull(co.Conn, p[:length]) -} - -// WriteMsg sends a message through the connection co. -// If the message m contains a TSIG record the transaction -// signature is calculated. -func (co *Conn) WriteMsg(m *Msg) (err error) { - var out []byte - if t := m.IsTsig(); t != nil { - // Set tsigRequestMAC for the next read, although only used in zone transfers. - out, co.tsigRequestMAC, err = TsigGenerateWithProvider(m, co.tsigProvider(), co.tsigRequestMAC, false) - } else { - out, err = m.Pack() - } - if err != nil { - return err - } - _, err = co.Write(out) - return err -} - -// Write implements the net.Conn Write method. -func (co *Conn) Write(p []byte) (int, error) { - if len(p) > MaxMsgSize { - return 0, &Error{err: "message too large"} - } - - if isPacketConn(co.Conn) { - return co.Conn.Write(p) - } - - msg := make([]byte, 2+len(p)) - binary.BigEndian.PutUint16(msg, uint16(len(p))) - copy(msg[2:], p) - return co.Conn.Write(msg) -} - -// Return the appropriate timeout for a specific request -func (c *Client) getTimeoutForRequest(timeout time.Duration) time.Duration { - var requestTimeout time.Duration - if c.Timeout != 0 { - requestTimeout = c.Timeout - } else { - requestTimeout = timeout - } - // net.Dialer.Timeout has priority if smaller than the timeouts computed so - // far - if c.Dialer != nil && c.Dialer.Timeout != 0 { - if c.Dialer.Timeout < requestTimeout { - requestTimeout = c.Dialer.Timeout - } - } - return requestTimeout -} - -// Dial connects to the address on the named network. -func Dial(network, address string) (conn *Conn, err error) { - conn = new(Conn) - conn.Conn, err = net.Dial(network, address) - if err != nil { - return nil, err - } - return conn, nil -} - -// ExchangeContext performs a synchronous UDP query, like Exchange. It -// additionally obeys deadlines from the passed Context. -func ExchangeContext(ctx context.Context, m *Msg, a string) (r *Msg, err error) { - client := Client{Net: "udp"} - r, _, err = client.ExchangeContext(ctx, m, a) - // ignoring rtt to leave the original ExchangeContext API unchanged, but - // this function will go away - return r, err -} - -// ExchangeConn performs a synchronous query. It sends the message m via the connection -// c and waits for a reply. The connection c is not closed by ExchangeConn. -// Deprecated: This function is going away, but can easily be mimicked: -// -// co := &dns.Conn{Conn: c} // c is your net.Conn -// co.WriteMsg(m) -// in, _ := co.ReadMsg() -// co.Close() -func ExchangeConn(c net.Conn, m *Msg) (r *Msg, err error) { - println("dns: ExchangeConn: this function is deprecated") - co := new(Conn) - co.Conn = c - if err = co.WriteMsg(m); err != nil { - return nil, err - } - r, err = co.ReadMsg() - if err == nil && r.Id != m.Id { - err = ErrId - } - return r, err -} - -// DialTimeout acts like Dial but takes a timeout. -func DialTimeout(network, address string, timeout time.Duration) (conn *Conn, err error) { - client := Client{Net: network, Dialer: &net.Dialer{Timeout: timeout}} - return client.Dial(address) -} - -// DialWithTLS connects to the address on the named network with TLS. -func DialWithTLS(network, address string, tlsConfig *tls.Config) (conn *Conn, err error) { - if !strings.HasSuffix(network, "-tls") { - network += "-tls" - } - client := Client{Net: network, TLSConfig: tlsConfig} - return client.Dial(address) -} - -// DialTimeoutWithTLS acts like DialWithTLS but takes a timeout. -func DialTimeoutWithTLS(network, address string, tlsConfig *tls.Config, timeout time.Duration) (conn *Conn, err error) { - if !strings.HasSuffix(network, "-tls") { - network += "-tls" - } - client := Client{Net: network, Dialer: &net.Dialer{Timeout: timeout}, TLSConfig: tlsConfig} - return client.Dial(address) -} - -// ExchangeContext acts like Exchange, but honors the deadline on the provided -// context, if present. If there is both a context deadline and a configured -// timeout on the client, the earliest of the two takes effect. -func (c *Client) ExchangeContext(ctx context.Context, m *Msg, a string) (r *Msg, rtt time.Duration, err error) { - conn, err := c.DialContext(ctx, a) - if err != nil { - return nil, 0, err - } - defer conn.Close() - - return c.ExchangeWithConnContext(ctx, m, conn) -} diff --git a/vendor/github.com/miekg/dns/clientconfig.go b/vendor/github.com/miekg/dns/clientconfig.go deleted file mode 100644 index d00ac62fb6..0000000000 --- a/vendor/github.com/miekg/dns/clientconfig.go +++ /dev/null @@ -1,135 +0,0 @@ -package dns - -import ( - "bufio" - "io" - "os" - "strconv" - "strings" -) - -// ClientConfig wraps the contents of the /etc/resolv.conf file. -type ClientConfig struct { - Servers []string // servers to use - Search []string // suffixes to append to local name - Port string // what port to use - Ndots int // number of dots in name to trigger absolute lookup - Timeout int // seconds before giving up on packet - Attempts int // lost packets before giving up on server, not used in the package dns -} - -// ClientConfigFromFile parses a resolv.conf(5) like file and returns -// a *ClientConfig. -func ClientConfigFromFile(resolvconf string) (*ClientConfig, error) { - file, err := os.Open(resolvconf) - if err != nil { - return nil, err - } - defer file.Close() - return ClientConfigFromReader(file) -} - -// ClientConfigFromReader works like ClientConfigFromFile but takes an io.Reader as argument -func ClientConfigFromReader(resolvconf io.Reader) (*ClientConfig, error) { - c := new(ClientConfig) - scanner := bufio.NewScanner(resolvconf) - c.Servers = make([]string, 0) - c.Search = make([]string, 0) - c.Port = "53" - c.Ndots = 1 - c.Timeout = 5 - c.Attempts = 2 - - for scanner.Scan() { - if err := scanner.Err(); err != nil { - return nil, err - } - line := scanner.Text() - f := strings.Fields(line) - if len(f) < 1 { - continue - } - switch f[0] { - case "nameserver": // add one name server - if len(f) > 1 { - // One more check: make sure server name is - // just an IP address. Otherwise we need DNS - // to look it up. - name := f[1] - c.Servers = append(c.Servers, name) - } - - case "domain": // set search path to just this domain - if len(f) > 1 { - c.Search = make([]string, 1) - c.Search[0] = f[1] - } else { - c.Search = make([]string, 0) - } - - case "search": // set search path to given servers - c.Search = cloneSlice(f[1:]) - - case "options": // magic options - for _, s := range f[1:] { - switch { - case len(s) >= 6 && s[:6] == "ndots:": - n, _ := strconv.Atoi(s[6:]) - if n < 0 { - n = 0 - } else if n > 15 { - n = 15 - } - c.Ndots = n - case len(s) >= 8 && s[:8] == "timeout:": - n, _ := strconv.Atoi(s[8:]) - if n < 1 { - n = 1 - } - c.Timeout = n - case len(s) >= 9 && s[:9] == "attempts:": - n, _ := strconv.Atoi(s[9:]) - if n < 1 { - n = 1 - } - c.Attempts = n - case s == "rotate": - /* not imp */ - } - } - } - } - return c, nil -} - -// NameList returns all of the names that should be queried based on the -// config. It is based off of go's net/dns name building, but it does not -// check the length of the resulting names. -func (c *ClientConfig) NameList(name string) []string { - // if this domain is already fully qualified, no append needed. - if IsFqdn(name) { - return []string{name} - } - - // Check to see if the name has more labels than Ndots. Do this before making - // the domain fully qualified. - hasNdots := CountLabel(name) > c.Ndots - // Make the domain fully qualified. - name = Fqdn(name) - - // Make a list of names based off search. - names := []string{} - - // If name has enough dots, try that first. - if hasNdots { - names = append(names, name) - } - for _, s := range c.Search { - names = append(names, Fqdn(name+s)) - } - // If we didn't have enough dots, try after suffixes. - if !hasNdots { - names = append(names, name) - } - return names -} diff --git a/vendor/github.com/miekg/dns/dane.go b/vendor/github.com/miekg/dns/dane.go deleted file mode 100644 index 8c4a14ef19..0000000000 --- a/vendor/github.com/miekg/dns/dane.go +++ /dev/null @@ -1,43 +0,0 @@ -package dns - -import ( - "crypto/sha256" - "crypto/sha512" - "crypto/x509" - "encoding/hex" - "errors" -) - -// CertificateToDANE converts a certificate to a hex string as used in the TLSA or SMIMEA records. -func CertificateToDANE(selector, matchingType uint8, cert *x509.Certificate) (string, error) { - switch matchingType { - case 0: - switch selector { - case 0: - return hex.EncodeToString(cert.Raw), nil - case 1: - return hex.EncodeToString(cert.RawSubjectPublicKeyInfo), nil - } - case 1: - h := sha256.New() - switch selector { - case 0: - h.Write(cert.Raw) - return hex.EncodeToString(h.Sum(nil)), nil - case 1: - h.Write(cert.RawSubjectPublicKeyInfo) - return hex.EncodeToString(h.Sum(nil)), nil - } - case 2: - h := sha512.New() - switch selector { - case 0: - h.Write(cert.Raw) - return hex.EncodeToString(h.Sum(nil)), nil - case 1: - h.Write(cert.RawSubjectPublicKeyInfo) - return hex.EncodeToString(h.Sum(nil)), nil - } - } - return "", errors.New("dns: bad MatchingType or Selector") -} diff --git a/vendor/github.com/miekg/dns/defaults.go b/vendor/github.com/miekg/dns/defaults.go deleted file mode 100644 index 68e766c689..0000000000 --- a/vendor/github.com/miekg/dns/defaults.go +++ /dev/null @@ -1,396 +0,0 @@ -package dns - -import ( - "errors" - "net" - "strconv" - "strings" -) - -const hexDigit = "0123456789abcdef" - -// Everything is assumed in ClassINET. - -// SetReply creates a reply message from a request message. -func (dns *Msg) SetReply(request *Msg) *Msg { - dns.Id = request.Id - dns.Response = true - dns.Opcode = request.Opcode - if dns.Opcode == OpcodeQuery { - dns.RecursionDesired = request.RecursionDesired // Copy rd bit - dns.CheckingDisabled = request.CheckingDisabled // Copy cd bit - } - dns.Rcode = RcodeSuccess - if len(request.Question) > 0 { - dns.Question = []Question{request.Question[0]} - } - return dns -} - -// SetQuestion creates a question message, it sets the Question -// section, generates an Id and sets the RecursionDesired (RD) -// bit to true. -func (dns *Msg) SetQuestion(z string, t uint16) *Msg { - dns.Id = Id() - dns.RecursionDesired = true - dns.Question = make([]Question, 1) - dns.Question[0] = Question{z, t, ClassINET} - return dns -} - -// SetNotify creates a notify message, it sets the Question -// section, generates an Id and sets the Authoritative (AA) -// bit to true. -func (dns *Msg) SetNotify(z string) *Msg { - dns.Opcode = OpcodeNotify - dns.Authoritative = true - dns.Id = Id() - dns.Question = make([]Question, 1) - dns.Question[0] = Question{z, TypeSOA, ClassINET} - return dns -} - -// SetRcode creates an error message suitable for the request. -func (dns *Msg) SetRcode(request *Msg, rcode int) *Msg { - dns.SetReply(request) - dns.Rcode = rcode - return dns -} - -// SetRcodeFormatError creates a message with FormError set. -func (dns *Msg) SetRcodeFormatError(request *Msg) *Msg { - dns.Rcode = RcodeFormatError - dns.Opcode = OpcodeQuery - dns.Response = true - dns.Authoritative = false - dns.Id = request.Id - return dns -} - -// SetUpdate makes the message a dynamic update message. It -// sets the ZONE section to: z, TypeSOA, ClassINET. -func (dns *Msg) SetUpdate(z string) *Msg { - dns.Id = Id() - dns.Response = false - dns.Opcode = OpcodeUpdate - dns.Compress = false // BIND9 cannot handle compression - dns.Question = make([]Question, 1) - dns.Question[0] = Question{z, TypeSOA, ClassINET} - return dns -} - -// SetIxfr creates message for requesting an IXFR. -func (dns *Msg) SetIxfr(z string, serial uint32, ns, mbox string) *Msg { - dns.Id = Id() - dns.Question = make([]Question, 1) - dns.Ns = make([]RR, 1) - s := new(SOA) - s.Hdr = RR_Header{z, TypeSOA, ClassINET, defaultTtl, 0} - s.Serial = serial - s.Ns = ns - s.Mbox = mbox - dns.Question[0] = Question{z, TypeIXFR, ClassINET} - dns.Ns[0] = s - return dns -} - -// SetAxfr creates message for requesting an AXFR. -func (dns *Msg) SetAxfr(z string) *Msg { - dns.Id = Id() - dns.Question = make([]Question, 1) - dns.Question[0] = Question{z, TypeAXFR, ClassINET} - return dns -} - -// SetTsig appends a TSIG RR to the message. -// This is only a skeleton TSIG RR that is added as the last RR in the -// additional section. The TSIG is calculated when the message is being send. -func (dns *Msg) SetTsig(z, algo string, fudge uint16, timesigned int64) *Msg { - t := new(TSIG) - t.Hdr = RR_Header{z, TypeTSIG, ClassANY, 0, 0} - t.Algorithm = algo - t.Fudge = fudge - t.TimeSigned = uint64(timesigned) - t.OrigId = dns.Id - dns.Extra = append(dns.Extra, t) - return dns -} - -// SetEdns0 appends a EDNS0 OPT RR to the message. -// TSIG should always the last RR in a message. -func (dns *Msg) SetEdns0(udpsize uint16, do bool) *Msg { - e := new(OPT) - e.Hdr.Name = "." - e.Hdr.Rrtype = TypeOPT - e.SetUDPSize(udpsize) - if do { - e.SetDo() - } - dns.Extra = append(dns.Extra, e) - return dns -} - -// IsTsig checks if the message has a TSIG record as the last record -// in the additional section. It returns the TSIG record found or nil. -func (dns *Msg) IsTsig() *TSIG { - if len(dns.Extra) > 0 { - if dns.Extra[len(dns.Extra)-1].Header().Rrtype == TypeTSIG { - return dns.Extra[len(dns.Extra)-1].(*TSIG) - } - } - return nil -} - -// IsEdns0 checks if the message has a EDNS0 (OPT) record, any EDNS0 -// record in the additional section will do. It returns the OPT record -// found or nil. -func (dns *Msg) IsEdns0() *OPT { - // RFC 6891, Section 6.1.1 allows the OPT record to appear - // anywhere in the additional record section, but it's usually at - // the end so start there. - for i := len(dns.Extra) - 1; i >= 0; i-- { - if dns.Extra[i].Header().Rrtype == TypeOPT { - return dns.Extra[i].(*OPT) - } - } - return nil -} - -// popEdns0 is like IsEdns0, but it removes the record from the message. -func (dns *Msg) popEdns0() *OPT { - // RFC 6891, Section 6.1.1 allows the OPT record to appear - // anywhere in the additional record section, but it's usually at - // the end so start there. - for i := len(dns.Extra) - 1; i >= 0; i-- { - if dns.Extra[i].Header().Rrtype == TypeOPT { - opt := dns.Extra[i].(*OPT) - dns.Extra = append(dns.Extra[:i], dns.Extra[i+1:]...) - return opt - } - } - return nil -} - -// IsDomainName checks if s is a valid domain name, it returns the number of -// labels and true, when a domain name is valid. Note that non fully qualified -// domain name is considered valid, in this case the last label is counted in -// the number of labels. When false is returned the number of labels is not -// defined. Also note that this function is extremely liberal; almost any -// string is a valid domain name as the DNS is 8 bit protocol. It checks if each -// label fits in 63 characters and that the entire name will fit into the 255 -// octet wire format limit. -func IsDomainName(s string) (labels int, ok bool) { - // XXX: The logic in this function was copied from packDomainName and - // should be kept in sync with that function. - - const lenmsg = 256 - - if len(s) == 0 { // Ok, for instance when dealing with update RR without any rdata. - return 0, false - } - - s = Fqdn(s) - - // Each dot ends a segment of the name. Except for escaped dots (\.), which - // are normal dots. - - var ( - off int - begin int - wasDot bool - escape bool - ) - for i := 0; i < len(s); i++ { - switch s[i] { - case '\\': - escape = !escape - if off+1 > lenmsg { - return labels, false - } - - // check for \DDD - if isDDD(s[i+1:]) { - i += 3 - begin += 3 - } else { - i++ - begin++ - } - - wasDot = false - case '.': - escape = false - if i == 0 && len(s) > 1 { - // leading dots are not legal except for the root zone - return labels, false - } - - if wasDot { - // two dots back to back is not legal - return labels, false - } - wasDot = true - - labelLen := i - begin - if labelLen >= 1<<6 { // top two bits of length must be clear - return labels, false - } - - // off can already (we're in a loop) be bigger than lenmsg - // this happens when a name isn't fully qualified - off += 1 + labelLen - if off > lenmsg { - return labels, false - } - - labels++ - begin = i + 1 - default: - escape = false - wasDot = false - } - } - if escape { - return labels, false - } - return labels, true -} - -// IsSubDomain checks if child is indeed a child of the parent. If child and parent -// are the same domain true is returned as well. -func IsSubDomain(parent, child string) bool { - // Entire child is contained in parent - return CompareDomainName(parent, child) == CountLabel(parent) -} - -// IsMsg sanity checks buf and returns an error if it isn't a valid DNS packet. -// The checking is performed on the binary payload. -func IsMsg(buf []byte) error { - // Header - if len(buf) < headerSize { - return errors.New("dns: bad message header") - } - // Header: Opcode - // TODO(miek): more checks here, e.g. check all header bits. - return nil -} - -// IsFqdn checks if a domain name is fully qualified. -func IsFqdn(s string) bool { - // Check for (and remove) a trailing dot, returning if there isn't one. - if s == "" || s[len(s)-1] != '.' { - return false - } - s = s[:len(s)-1] - - // If we don't have an escape sequence before the final dot, we know it's - // fully qualified and can return here. - if s == "" || s[len(s)-1] != '\\' { - return true - } - - // Otherwise we have to check if the dot is escaped or not by checking if - // there are an odd or even number of escape sequences before the dot. - i := strings.LastIndexFunc(s, func(r rune) bool { - return r != '\\' - }) - return (len(s)-i)%2 != 0 -} - -// IsRRset reports whether a set of RRs is a valid RRset as defined by RFC 2181. -// This means the RRs need to have the same type, name, and class. -func IsRRset(rrset []RR) bool { - if len(rrset) == 0 { - return false - } - - baseH := rrset[0].Header() - for _, rr := range rrset[1:] { - curH := rr.Header() - if curH.Rrtype != baseH.Rrtype || curH.Class != baseH.Class || curH.Name != baseH.Name { - // Mismatch between the records, so this is not a valid rrset for - // signing/verifying - return false - } - } - - return true -} - -// Fqdn return the fully qualified domain name from s. -// If s is already fully qualified, it behaves as the identity function. -func Fqdn(s string) string { - if IsFqdn(s) { - return s - } - return s + "." -} - -// CanonicalName returns the domain name in canonical form. A name in canonical -// form is lowercase and fully qualified. Only US-ASCII letters are affected. See -// Section 6.2 in RFC 4034. -func CanonicalName(s string) string { - return strings.Map(func(r rune) rune { - if r >= 'A' && r <= 'Z' { - r += 'a' - 'A' - } - return r - }, Fqdn(s)) -} - -// Copied from the official Go code. - -// ReverseAddr returns the in-addr.arpa. or ip6.arpa. hostname of the IP -// address suitable for reverse DNS (PTR) record lookups or an error if it fails -// to parse the IP address. -func ReverseAddr(addr string) (arpa string, err error) { - ip := net.ParseIP(addr) - if ip == nil { - return "", &Error{err: "unrecognized address: " + addr} - } - if v4 := ip.To4(); v4 != nil { - buf := make([]byte, 0, net.IPv4len*4+len("in-addr.arpa.")) - // Add it, in reverse, to the buffer - for i := len(v4) - 1; i >= 0; i-- { - buf = strconv.AppendInt(buf, int64(v4[i]), 10) - buf = append(buf, '.') - } - // Append "in-addr.arpa." and return (buf already has the final .) - buf = append(buf, "in-addr.arpa."...) - return string(buf), nil - } - // Must be IPv6 - buf := make([]byte, 0, net.IPv6len*4+len("ip6.arpa.")) - // Add it, in reverse, to the buffer - for i := len(ip) - 1; i >= 0; i-- { - v := ip[i] - buf = append(buf, hexDigit[v&0xF], '.', hexDigit[v>>4], '.') - } - // Append "ip6.arpa." and return (buf already has the final .) - buf = append(buf, "ip6.arpa."...) - return string(buf), nil -} - -// String returns the string representation for the type t. -func (t Type) String() string { - if t1, ok := TypeToString[uint16(t)]; ok { - return t1 - } - return "TYPE" + strconv.Itoa(int(t)) -} - -// String returns the string representation for the class c. -func (c Class) String() string { - if s, ok := ClassToString[uint16(c)]; ok { - // Only emit mnemonics when they are unambiguous, specially ANY is in both. - if _, ok := StringToType[s]; !ok { - return s - } - } - return "CLASS" + strconv.Itoa(int(c)) -} - -// String returns the string representation for the name n. -func (n Name) String() string { - return sprintName(string(n)) -} diff --git a/vendor/github.com/miekg/dns/dns.go b/vendor/github.com/miekg/dns/dns.go deleted file mode 100644 index a88484b062..0000000000 --- a/vendor/github.com/miekg/dns/dns.go +++ /dev/null @@ -1,158 +0,0 @@ -package dns - -import ( - "encoding/hex" - "strconv" -) - -const ( - year68 = 1 << 31 // For RFC1982 (Serial Arithmetic) calculations in 32 bits. - defaultTtl = 3600 // Default internal TTL. - - // DefaultMsgSize is the standard default for messages larger than 512 bytes. - DefaultMsgSize = 4096 - // MinMsgSize is the minimal size of a DNS packet. - MinMsgSize = 512 - // MaxMsgSize is the largest possible DNS packet. - MaxMsgSize = 65535 -) - -// Error represents a DNS error. -type Error struct{ err string } - -func (e *Error) Error() string { - if e == nil { - return "dns: " - } - return "dns: " + e.err -} - -// An RR represents a resource record. -type RR interface { - // Header returns the header of an resource record. The header contains - // everything up to the rdata. - Header() *RR_Header - // String returns the text representation of the resource record. - String() string - - // copy returns a copy of the RR - copy() RR - - // len returns the length (in octets) of the compressed or uncompressed RR in wire format. - // - // If compression is nil, the uncompressed size will be returned, otherwise the compressed - // size will be returned and domain names will be added to the map for future compression. - len(off int, compression map[string]struct{}) int - - // pack packs the records RDATA into wire format. The header will - // already have been packed into msg. - pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) - - // unpack unpacks an RR from wire format. - // - // This will only be called on a new and empty RR type with only the header populated. It - // will only be called if the record's RDATA is non-empty. - unpack(msg []byte, off int) (off1 int, err error) - - // parse parses an RR from zone file format. - // - // This will only be called on a new and empty RR type with only the header populated. - parse(c *zlexer, origin string) *ParseError - - // isDuplicate returns whether the two RRs are duplicates. - isDuplicate(r2 RR) bool -} - -// RR_Header is the header all DNS resource records share. -type RR_Header struct { - Name string `dns:"cdomain-name"` - Rrtype uint16 - Class uint16 - Ttl uint32 - Rdlength uint16 // Length of data after header. -} - -// Header returns itself. This is here to make RR_Header implements the RR interface. -func (h *RR_Header) Header() *RR_Header { return h } - -// Just to implement the RR interface. -func (h *RR_Header) copy() RR { return nil } - -func (h *RR_Header) String() string { - var s string - - if h.Rrtype == TypeOPT { - s = ";" - // and maybe other things - } - - s += sprintName(h.Name) + "\t" - s += strconv.FormatInt(int64(h.Ttl), 10) + "\t" - s += Class(h.Class).String() + "\t" - s += Type(h.Rrtype).String() + "\t" - return s -} - -func (h *RR_Header) len(off int, compression map[string]struct{}) int { - l := domainNameLen(h.Name, off, compression, true) - l += 10 // rrtype(2) + class(2) + ttl(4) + rdlength(2) - return l -} - -func (h *RR_Header) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - // RR_Header has no RDATA to pack. - return off, nil -} - -func (h *RR_Header) unpack(msg []byte, off int) (int, error) { - panic("dns: internal error: unpack should never be called on RR_Header") -} - -func (h *RR_Header) parse(c *zlexer, origin string) *ParseError { - panic("dns: internal error: parse should never be called on RR_Header") -} - -// ToRFC3597 converts a known RR to the unknown RR representation from RFC 3597. -func (rr *RFC3597) ToRFC3597(r RR) error { - buf := make([]byte, Len(r)) - headerEnd, off, err := packRR(r, buf, 0, compressionMap{}, false) - if err != nil { - return err - } - buf = buf[:off] - - *rr = RFC3597{Hdr: *r.Header()} - rr.Hdr.Rdlength = uint16(off - headerEnd) - - if noRdata(rr.Hdr) { - return nil - } - - _, err = rr.unpack(buf, headerEnd) - return err -} - -// fromRFC3597 converts an unknown RR representation from RFC 3597 to the known RR type. -func (rr *RFC3597) fromRFC3597(r RR) error { - hdr := r.Header() - *hdr = rr.Hdr - - // Can't overflow uint16 as the length of Rdata is validated in (*RFC3597).parse. - // We can only get here when rr was constructed with that method. - hdr.Rdlength = uint16(hex.DecodedLen(len(rr.Rdata))) - - if noRdata(*hdr) { - // Dynamic update. - return nil - } - - // rr.pack requires an extra allocation and a copy so we just decode Rdata - // manually, it's simpler anyway. - msg, err := hex.DecodeString(rr.Rdata) - if err != nil { - return err - } - - _, err = r.unpack(msg, 0) - return err -} diff --git a/vendor/github.com/miekg/dns/dnssec.go b/vendor/github.com/miekg/dns/dnssec.go deleted file mode 100644 index ffdafcebda..0000000000 --- a/vendor/github.com/miekg/dns/dnssec.go +++ /dev/null @@ -1,761 +0,0 @@ -package dns - -import ( - "bytes" - "crypto" - "crypto/ecdsa" - "crypto/ed25519" - "crypto/elliptic" - "crypto/rand" - "crypto/rsa" - _ "crypto/sha1" // need its init function - _ "crypto/sha256" // need its init function - _ "crypto/sha512" // need its init function - "encoding/asn1" - "encoding/binary" - "encoding/hex" - "math/big" - "sort" - "strings" - "time" -) - -// DNSSEC encryption algorithm codes. -const ( - _ uint8 = iota - RSAMD5 - DH - DSA - _ // Skip 4, RFC 6725, section 2.1 - RSASHA1 - DSANSEC3SHA1 - RSASHA1NSEC3SHA1 - RSASHA256 - _ // Skip 9, RFC 6725, section 2.1 - RSASHA512 - _ // Skip 11, RFC 6725, section 2.1 - ECCGOST - ECDSAP256SHA256 - ECDSAP384SHA384 - ED25519 - ED448 - INDIRECT uint8 = 252 - PRIVATEDNS uint8 = 253 // Private (experimental keys) - PRIVATEOID uint8 = 254 -) - -// AlgorithmToString is a map of algorithm IDs to algorithm names. -var AlgorithmToString = map[uint8]string{ - RSAMD5: "RSAMD5", - DH: "DH", - DSA: "DSA", - RSASHA1: "RSASHA1", - DSANSEC3SHA1: "DSA-NSEC3-SHA1", - RSASHA1NSEC3SHA1: "RSASHA1-NSEC3-SHA1", - RSASHA256: "RSASHA256", - RSASHA512: "RSASHA512", - ECCGOST: "ECC-GOST", - ECDSAP256SHA256: "ECDSAP256SHA256", - ECDSAP384SHA384: "ECDSAP384SHA384", - ED25519: "ED25519", - ED448: "ED448", - INDIRECT: "INDIRECT", - PRIVATEDNS: "PRIVATEDNS", - PRIVATEOID: "PRIVATEOID", -} - -// AlgorithmToHash is a map of algorithm crypto hash IDs to crypto.Hash's. -// For newer algorithm that do their own hashing (i.e. ED25519) the returned value -// is 0, implying no (external) hashing should occur. The non-exported identityHash is then -// used. -var AlgorithmToHash = map[uint8]crypto.Hash{ - RSAMD5: crypto.MD5, // Deprecated in RFC 6725 - DSA: crypto.SHA1, - RSASHA1: crypto.SHA1, - RSASHA1NSEC3SHA1: crypto.SHA1, - RSASHA256: crypto.SHA256, - ECDSAP256SHA256: crypto.SHA256, - ECDSAP384SHA384: crypto.SHA384, - RSASHA512: crypto.SHA512, - ED25519: 0, -} - -// DNSSEC hashing algorithm codes. -const ( - _ uint8 = iota - SHA1 // RFC 4034 - SHA256 // RFC 4509 - GOST94 // RFC 5933 - SHA384 // Experimental - SHA512 // Experimental -) - -// HashToString is a map of hash IDs to names. -var HashToString = map[uint8]string{ - SHA1: "SHA1", - SHA256: "SHA256", - GOST94: "GOST94", - SHA384: "SHA384", - SHA512: "SHA512", -} - -// DNSKEY flag values. -const ( - SEP = 1 - REVOKE = 1 << 7 - ZONE = 1 << 8 -) - -// The RRSIG needs to be converted to wireformat with some of the rdata (the signature) missing. -type rrsigWireFmt struct { - TypeCovered uint16 - Algorithm uint8 - Labels uint8 - OrigTtl uint32 - Expiration uint32 - Inception uint32 - KeyTag uint16 - SignerName string `dns:"domain-name"` - /* No Signature */ -} - -// Used for converting DNSKEY's rdata to wirefmt. -type dnskeyWireFmt struct { - Flags uint16 - Protocol uint8 - Algorithm uint8 - PublicKey string `dns:"base64"` - /* Nothing is left out */ -} - -// KeyTag calculates the keytag (or key-id) of the DNSKEY. -func (k *DNSKEY) KeyTag() uint16 { - if k == nil { - return 0 - } - var keytag int - switch k.Algorithm { - case RSAMD5: - // This algorithm has been deprecated, but keep this key-tag calculation. - // Look at the bottom two bytes of the modules, which the last item in the pubkey. - // See https://www.rfc-editor.org/errata/eid193 . - modulus, _ := fromBase64([]byte(k.PublicKey)) - if len(modulus) > 1 { - x := binary.BigEndian.Uint16(modulus[len(modulus)-3:]) - keytag = int(x) - } - default: - keywire := new(dnskeyWireFmt) - keywire.Flags = k.Flags - keywire.Protocol = k.Protocol - keywire.Algorithm = k.Algorithm - keywire.PublicKey = k.PublicKey - wire := make([]byte, DefaultMsgSize) - n, err := packKeyWire(keywire, wire) - if err != nil { - return 0 - } - wire = wire[:n] - for i, v := range wire { - if i&1 != 0 { - keytag += int(v) // must be larger than uint32 - } else { - keytag += int(v) << 8 - } - } - keytag += keytag >> 16 & 0xFFFF - keytag &= 0xFFFF - } - return uint16(keytag) -} - -// ToDS converts a DNSKEY record to a DS record. -func (k *DNSKEY) ToDS(h uint8) *DS { - if k == nil { - return nil - } - ds := new(DS) - ds.Hdr.Name = k.Hdr.Name - ds.Hdr.Class = k.Hdr.Class - ds.Hdr.Rrtype = TypeDS - ds.Hdr.Ttl = k.Hdr.Ttl - ds.Algorithm = k.Algorithm - ds.DigestType = h - ds.KeyTag = k.KeyTag() - - keywire := new(dnskeyWireFmt) - keywire.Flags = k.Flags - keywire.Protocol = k.Protocol - keywire.Algorithm = k.Algorithm - keywire.PublicKey = k.PublicKey - wire := make([]byte, DefaultMsgSize) - n, err := packKeyWire(keywire, wire) - if err != nil { - return nil - } - wire = wire[:n] - - owner := make([]byte, 255) - off, err1 := PackDomainName(CanonicalName(k.Hdr.Name), owner, 0, nil, false) - if err1 != nil { - return nil - } - owner = owner[:off] - // RFC4034: - // digest = digest_algorithm( DNSKEY owner name | DNSKEY RDATA); - // "|" denotes concatenation - // DNSKEY RDATA = Flags | Protocol | Algorithm | Public Key. - - var hash crypto.Hash - switch h { - case SHA1: - hash = crypto.SHA1 - case SHA256: - hash = crypto.SHA256 - case SHA384: - hash = crypto.SHA384 - case SHA512: - hash = crypto.SHA512 - default: - return nil - } - - s := hash.New() - s.Write(owner) - s.Write(wire) - ds.Digest = hex.EncodeToString(s.Sum(nil)) - return ds -} - -// ToCDNSKEY converts a DNSKEY record to a CDNSKEY record. -func (k *DNSKEY) ToCDNSKEY() *CDNSKEY { - c := &CDNSKEY{DNSKEY: *k} - c.Hdr = k.Hdr - c.Hdr.Rrtype = TypeCDNSKEY - return c -} - -// ToCDS converts a DS record to a CDS record. -func (d *DS) ToCDS() *CDS { - c := &CDS{DS: *d} - c.Hdr = d.Hdr - c.Hdr.Rrtype = TypeCDS - return c -} - -// Sign signs an RRSet. The signature needs to be filled in with the values: -// Inception, Expiration, KeyTag, SignerName and Algorithm. The rest is copied -// from the RRset. Sign returns a non-nill error when the signing went OK. -// There is no check if RRSet is a proper (RFC 2181) RRSet. If OrigTTL is non -// zero, it is used as-is, otherwise the TTL of the RRset is used as the -// OrigTTL. -func (rr *RRSIG) Sign(k crypto.Signer, rrset []RR) error { - h0 := rrset[0].Header() - rr.Hdr.Rrtype = TypeRRSIG - rr.Hdr.Name = h0.Name - rr.Hdr.Class = h0.Class - if rr.OrigTtl == 0 { // If set don't override - rr.OrigTtl = h0.Ttl - } - rr.TypeCovered = h0.Rrtype - rr.Labels = uint8(CountLabel(h0.Name)) - - if strings.HasPrefix(h0.Name, "*") { - rr.Labels-- // wildcard, remove from label count - } - - return rr.signAsIs(k, rrset) -} - -func (rr *RRSIG) signAsIs(k crypto.Signer, rrset []RR) error { - if k == nil { - return ErrPrivKey - } - // s.Inception and s.Expiration may be 0 (rollover etc.), the rest must be set - if rr.KeyTag == 0 || len(rr.SignerName) == 0 || rr.Algorithm == 0 { - return ErrKey - } - - sigwire := new(rrsigWireFmt) - sigwire.TypeCovered = rr.TypeCovered - sigwire.Algorithm = rr.Algorithm - sigwire.Labels = rr.Labels - sigwire.OrigTtl = rr.OrigTtl - sigwire.Expiration = rr.Expiration - sigwire.Inception = rr.Inception - sigwire.KeyTag = rr.KeyTag - // For signing, lowercase this name - sigwire.SignerName = CanonicalName(rr.SignerName) - - // Create the desired binary blob - signdata := make([]byte, DefaultMsgSize) - n, err := packSigWire(sigwire, signdata) - if err != nil { - return err - } - signdata = signdata[:n] - wire, err := rawSignatureData(rrset, rr) - if err != nil { - return err - } - - h, cryptohash, err := hashFromAlgorithm(rr.Algorithm) - if err != nil { - return err - } - - switch rr.Algorithm { - case RSAMD5, DSA, DSANSEC3SHA1: - // See RFC 6944. - return ErrAlg - default: - h.Write(signdata) - h.Write(wire) - - signature, err := sign(k, h.Sum(nil), cryptohash, rr.Algorithm) - if err != nil { - return err - } - - rr.Signature = toBase64(signature) - return nil - } -} - -func sign(k crypto.Signer, hashed []byte, hash crypto.Hash, alg uint8) ([]byte, error) { - signature, err := k.Sign(rand.Reader, hashed, hash) - if err != nil { - return nil, err - } - - switch alg { - case RSASHA1, RSASHA1NSEC3SHA1, RSASHA256, RSASHA512, ED25519: - return signature, nil - case ECDSAP256SHA256, ECDSAP384SHA384: - ecdsaSignature := &struct { - R, S *big.Int - }{} - if _, err := asn1.Unmarshal(signature, ecdsaSignature); err != nil { - return nil, err - } - - var intlen int - switch alg { - case ECDSAP256SHA256: - intlen = 32 - case ECDSAP384SHA384: - intlen = 48 - } - - signature := intToBytes(ecdsaSignature.R, intlen) - signature = append(signature, intToBytes(ecdsaSignature.S, intlen)...) - return signature, nil - default: - return nil, ErrAlg - } -} - -// Verify validates an RRSet with the signature and key. This is only the -// cryptographic test, the signature validity period must be checked separately. -// This function copies the rdata of some RRs (to lowercase domain names) for the validation to work. -// It also checks that the Zone Key bit (RFC 4034 2.1.1) is set on the DNSKEY -// and that the Protocol field is set to 3 (RFC 4034 2.1.2). -func (rr *RRSIG) Verify(k *DNSKEY, rrset []RR) error { - // First the easy checks - if !IsRRset(rrset) { - return ErrRRset - } - if rr.KeyTag != k.KeyTag() { - return ErrKey - } - if rr.Hdr.Class != k.Hdr.Class { - return ErrKey - } - if rr.Algorithm != k.Algorithm { - return ErrKey - } - - signerName := CanonicalName(rr.SignerName) - if !equal(signerName, k.Hdr.Name) { - return ErrKey - } - - if k.Protocol != 3 { - return ErrKey - } - // RFC 4034 2.1.1 If bit 7 has value 0, then the DNSKEY record holds some - // other type of DNS public key and MUST NOT be used to verify RRSIGs that - // cover RRsets. - if k.Flags&ZONE == 0 { - return ErrKey - } - - // IsRRset checked that we have at least one RR and that the RRs in - // the set have consistent type, class, and name. Also check that type, - // class and name matches the RRSIG record. - // Also checks RFC 4035 5.3.1 the number of labels in the RRset owner - // name MUST be greater than or equal to the value in the RRSIG RR's Labels field. - // RFC 4035 5.3.1 Signer's Name MUST be the name of the zone that [contains the RRset]. - // Since we don't have SOA info, checking suffix may be the best we can do...? - if h0 := rrset[0].Header(); h0.Class != rr.Hdr.Class || - h0.Rrtype != rr.TypeCovered || - uint8(CountLabel(h0.Name)) < rr.Labels || - !equal(h0.Name, rr.Hdr.Name) || - !strings.HasSuffix(CanonicalName(h0.Name), signerName) { - - return ErrRRset - } - - // RFC 4035 5.3.2. Reconstructing the Signed Data - // Copy the sig, except the rrsig data - sigwire := new(rrsigWireFmt) - sigwire.TypeCovered = rr.TypeCovered - sigwire.Algorithm = rr.Algorithm - sigwire.Labels = rr.Labels - sigwire.OrigTtl = rr.OrigTtl - sigwire.Expiration = rr.Expiration - sigwire.Inception = rr.Inception - sigwire.KeyTag = rr.KeyTag - sigwire.SignerName = signerName - // Create the desired binary blob - signeddata := make([]byte, DefaultMsgSize) - n, err := packSigWire(sigwire, signeddata) - if err != nil { - return err - } - signeddata = signeddata[:n] - wire, err := rawSignatureData(rrset, rr) - if err != nil { - return err - } - - sigbuf := rr.sigBuf() // Get the binary signature data - // TODO(miek) - // remove the domain name and assume its ours? - // if rr.Algorithm == PRIVATEDNS { // PRIVATEOID - // } - - h, cryptohash, err := hashFromAlgorithm(rr.Algorithm) - if err != nil { - return err - } - - switch rr.Algorithm { - case RSASHA1, RSASHA1NSEC3SHA1, RSASHA256, RSASHA512: - // TODO(mg): this can be done quicker, ie. cache the pubkey data somewhere?? - pubkey := k.publicKeyRSA() // Get the key - if pubkey == nil { - return ErrKey - } - - h.Write(signeddata) - h.Write(wire) - return rsa.VerifyPKCS1v15(pubkey, cryptohash, h.Sum(nil), sigbuf) - - case ECDSAP256SHA256, ECDSAP384SHA384: - pubkey := k.publicKeyECDSA() - if pubkey == nil { - return ErrKey - } - - // Split sigbuf into the r and s coordinates - r := new(big.Int).SetBytes(sigbuf[:len(sigbuf)/2]) - s := new(big.Int).SetBytes(sigbuf[len(sigbuf)/2:]) - - h.Write(signeddata) - h.Write(wire) - if ecdsa.Verify(pubkey, h.Sum(nil), r, s) { - return nil - } - return ErrSig - - case ED25519: - pubkey := k.publicKeyED25519() - if pubkey == nil { - return ErrKey - } - - if ed25519.Verify(pubkey, append(signeddata, wire...), sigbuf) { - return nil - } - return ErrSig - - default: - return ErrAlg - } -} - -// ValidityPeriod uses RFC1982 serial arithmetic to calculate -// if a signature period is valid. If t is the zero time, the -// current time is taken other t is. Returns true if the signature -// is valid at the given time, otherwise returns false. -func (rr *RRSIG) ValidityPeriod(t time.Time) bool { - var utc int64 - if t.IsZero() { - utc = time.Now().UTC().Unix() - } else { - utc = t.UTC().Unix() - } - modi := (int64(rr.Inception) - utc) / year68 - mode := (int64(rr.Expiration) - utc) / year68 - ti := int64(rr.Inception) + modi*year68 - te := int64(rr.Expiration) + mode*year68 - return ti <= utc && utc <= te -} - -// Return the signatures base64 encoding sigdata as a byte slice. -func (rr *RRSIG) sigBuf() []byte { - sigbuf, err := fromBase64([]byte(rr.Signature)) - if err != nil { - return nil - } - return sigbuf -} - -// publicKeyRSA returns the RSA public key from a DNSKEY record. -func (k *DNSKEY) publicKeyRSA() *rsa.PublicKey { - keybuf, err := fromBase64([]byte(k.PublicKey)) - if err != nil { - return nil - } - - if len(keybuf) < 1+1+64 { - // Exponent must be at least 1 byte and modulus at least 64 - return nil - } - - // RFC 2537/3110, section 2. RSA Public KEY Resource Records - // Length is in the 0th byte, unless its zero, then it - // it in bytes 1 and 2 and its a 16 bit number - explen := uint16(keybuf[0]) - keyoff := 1 - if explen == 0 { - explen = uint16(keybuf[1])<<8 | uint16(keybuf[2]) - keyoff = 3 - } - - if explen > 4 || explen == 0 || keybuf[keyoff] == 0 { - // Exponent larger than supported by the crypto package, - // empty, or contains prohibited leading zero. - return nil - } - - modoff := keyoff + int(explen) - modlen := len(keybuf) - modoff - if modlen < 64 || modlen > 512 || keybuf[modoff] == 0 { - // Modulus is too small, large, or contains prohibited leading zero. - return nil - } - - pubkey := new(rsa.PublicKey) - - var expo uint64 - // The exponent of length explen is between keyoff and modoff. - for _, v := range keybuf[keyoff:modoff] { - expo <<= 8 - expo |= uint64(v) - } - if expo > 1<<31-1 { - // Larger exponent than supported by the crypto package. - return nil - } - - pubkey.E = int(expo) - pubkey.N = new(big.Int).SetBytes(keybuf[modoff:]) - return pubkey -} - -// publicKeyECDSA returns the Curve public key from the DNSKEY record. -func (k *DNSKEY) publicKeyECDSA() *ecdsa.PublicKey { - keybuf, err := fromBase64([]byte(k.PublicKey)) - if err != nil { - return nil - } - pubkey := new(ecdsa.PublicKey) - switch k.Algorithm { - case ECDSAP256SHA256: - pubkey.Curve = elliptic.P256() - if len(keybuf) != 64 { - // wrongly encoded key - return nil - } - case ECDSAP384SHA384: - pubkey.Curve = elliptic.P384() - if len(keybuf) != 96 { - // Wrongly encoded key - return nil - } - } - pubkey.X = new(big.Int).SetBytes(keybuf[:len(keybuf)/2]) - pubkey.Y = new(big.Int).SetBytes(keybuf[len(keybuf)/2:]) - return pubkey -} - -func (k *DNSKEY) publicKeyED25519() ed25519.PublicKey { - keybuf, err := fromBase64([]byte(k.PublicKey)) - if err != nil { - return nil - } - if len(keybuf) != ed25519.PublicKeySize { - return nil - } - return keybuf -} - -type wireSlice [][]byte - -func (p wireSlice) Len() int { return len(p) } -func (p wireSlice) Swap(i, j int) { p[i], p[j] = p[j], p[i] } -func (p wireSlice) Less(i, j int) bool { - _, ioff, _ := UnpackDomainName(p[i], 0) - _, joff, _ := UnpackDomainName(p[j], 0) - return bytes.Compare(p[i][ioff+10:], p[j][joff+10:]) < 0 -} - -// Return the raw signature data. -func rawSignatureData(rrset []RR, s *RRSIG) (buf []byte, err error) { - wires := make(wireSlice, len(rrset)) - for i, r := range rrset { - r1 := r.copy() - h := r1.Header() - h.Ttl = s.OrigTtl - labels := SplitDomainName(h.Name) - // 6.2. Canonical RR Form. (4) - wildcards - if len(labels) > int(s.Labels) { - // Wildcard - h.Name = "*." + strings.Join(labels[len(labels)-int(s.Labels):], ".") + "." - } - // RFC 4034: 6.2. Canonical RR Form. (2) - domain name to lowercase - h.Name = CanonicalName(h.Name) - // 6.2. Canonical RR Form. (3) - domain rdata to lowercase. - // NS, MD, MF, CNAME, SOA, MB, MG, MR, PTR, - // HINFO, MINFO, MX, RP, AFSDB, RT, SIG, PX, NXT, NAPTR, KX, - // SRV, DNAME, A6 - // - // RFC 6840 - Clarifications and Implementation Notes for DNS Security (DNSSEC): - // Section 6.2 of [RFC4034] also erroneously lists HINFO as a record - // that needs conversion to lowercase, and twice at that. Since HINFO - // records contain no domain names, they are not subject to case - // conversion. - switch x := r1.(type) { - case *NS: - x.Ns = CanonicalName(x.Ns) - case *MD: - x.Md = CanonicalName(x.Md) - case *MF: - x.Mf = CanonicalName(x.Mf) - case *CNAME: - x.Target = CanonicalName(x.Target) - case *SOA: - x.Ns = CanonicalName(x.Ns) - x.Mbox = CanonicalName(x.Mbox) - case *MB: - x.Mb = CanonicalName(x.Mb) - case *MG: - x.Mg = CanonicalName(x.Mg) - case *MR: - x.Mr = CanonicalName(x.Mr) - case *PTR: - x.Ptr = CanonicalName(x.Ptr) - case *MINFO: - x.Rmail = CanonicalName(x.Rmail) - x.Email = CanonicalName(x.Email) - case *MX: - x.Mx = CanonicalName(x.Mx) - case *RP: - x.Mbox = CanonicalName(x.Mbox) - x.Txt = CanonicalName(x.Txt) - case *AFSDB: - x.Hostname = CanonicalName(x.Hostname) - case *RT: - x.Host = CanonicalName(x.Host) - case *SIG: - x.SignerName = CanonicalName(x.SignerName) - case *PX: - x.Map822 = CanonicalName(x.Map822) - x.Mapx400 = CanonicalName(x.Mapx400) - case *NAPTR: - x.Replacement = CanonicalName(x.Replacement) - case *KX: - x.Exchanger = CanonicalName(x.Exchanger) - case *SRV: - x.Target = CanonicalName(x.Target) - case *DNAME: - x.Target = CanonicalName(x.Target) - } - // 6.2. Canonical RR Form. (5) - origTTL - wire := make([]byte, Len(r1)+1) // +1 to be safe(r) - off, err1 := PackRR(r1, wire, 0, nil, false) - if err1 != nil { - return nil, err1 - } - wire = wire[:off] - wires[i] = wire - } - sort.Sort(wires) - for i, wire := range wires { - if i > 0 && bytes.Equal(wire, wires[i-1]) { - continue - } - buf = append(buf, wire...) - } - return buf, nil -} - -func packSigWire(sw *rrsigWireFmt, msg []byte) (int, error) { - // copied from zmsg.go RRSIG packing - off, err := packUint16(sw.TypeCovered, msg, 0) - if err != nil { - return off, err - } - off, err = packUint8(sw.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(sw.Labels, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(sw.OrigTtl, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(sw.Expiration, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(sw.Inception, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(sw.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = PackDomainName(sw.SignerName, msg, off, nil, false) - if err != nil { - return off, err - } - return off, nil -} - -func packKeyWire(dw *dnskeyWireFmt, msg []byte) (int, error) { - // copied from zmsg.go DNSKEY packing - off, err := packUint16(dw.Flags, msg, 0) - if err != nil { - return off, err - } - off, err = packUint8(dw.Protocol, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(dw.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase64(dw.PublicKey, msg, off) - if err != nil { - return off, err - } - return off, nil -} diff --git a/vendor/github.com/miekg/dns/dnssec_keygen.go b/vendor/github.com/miekg/dns/dnssec_keygen.go deleted file mode 100644 index b8124b5618..0000000000 --- a/vendor/github.com/miekg/dns/dnssec_keygen.go +++ /dev/null @@ -1,139 +0,0 @@ -package dns - -import ( - "crypto" - "crypto/ecdsa" - "crypto/ed25519" - "crypto/elliptic" - "crypto/rand" - "crypto/rsa" - "math/big" -) - -// Generate generates a DNSKEY of the given bit size. -// The public part is put inside the DNSKEY record. -// The Algorithm in the key must be set as this will define -// what kind of DNSKEY will be generated. -// The ECDSA algorithms imply a fixed keysize, in that case -// bits should be set to the size of the algorithm. -func (k *DNSKEY) Generate(bits int) (crypto.PrivateKey, error) { - switch k.Algorithm { - case RSASHA1, RSASHA256, RSASHA1NSEC3SHA1: - if bits < 512 || bits > 4096 { - return nil, ErrKeySize - } - case RSASHA512: - if bits < 1024 || bits > 4096 { - return nil, ErrKeySize - } - case ECDSAP256SHA256: - if bits != 256 { - return nil, ErrKeySize - } - case ECDSAP384SHA384: - if bits != 384 { - return nil, ErrKeySize - } - case ED25519: - if bits != 256 { - return nil, ErrKeySize - } - default: - return nil, ErrAlg - } - - switch k.Algorithm { - case RSASHA1, RSASHA256, RSASHA512, RSASHA1NSEC3SHA1: - priv, err := rsa.GenerateKey(rand.Reader, bits) - if err != nil { - return nil, err - } - k.setPublicKeyRSA(priv.PublicKey.E, priv.PublicKey.N) - return priv, nil - case ECDSAP256SHA256, ECDSAP384SHA384: - var c elliptic.Curve - switch k.Algorithm { - case ECDSAP256SHA256: - c = elliptic.P256() - case ECDSAP384SHA384: - c = elliptic.P384() - } - priv, err := ecdsa.GenerateKey(c, rand.Reader) - if err != nil { - return nil, err - } - k.setPublicKeyECDSA(priv.PublicKey.X, priv.PublicKey.Y) - return priv, nil - case ED25519: - pub, priv, err := ed25519.GenerateKey(rand.Reader) - if err != nil { - return nil, err - } - k.setPublicKeyED25519(pub) - return priv, nil - default: - return nil, ErrAlg - } -} - -// Set the public key (the value E and N) -func (k *DNSKEY) setPublicKeyRSA(_E int, _N *big.Int) bool { - if _E == 0 || _N == nil { - return false - } - buf := exponentToBuf(_E) - buf = append(buf, _N.Bytes()...) - k.PublicKey = toBase64(buf) - return true -} - -// Set the public key for Elliptic Curves -func (k *DNSKEY) setPublicKeyECDSA(_X, _Y *big.Int) bool { - if _X == nil || _Y == nil { - return false - } - var intlen int - switch k.Algorithm { - case ECDSAP256SHA256: - intlen = 32 - case ECDSAP384SHA384: - intlen = 48 - } - k.PublicKey = toBase64(curveToBuf(_X, _Y, intlen)) - return true -} - -// Set the public key for Ed25519 -func (k *DNSKEY) setPublicKeyED25519(_K ed25519.PublicKey) bool { - if _K == nil { - return false - } - k.PublicKey = toBase64(_K) - return true -} - -// Set the public key (the values E and N) for RSA -// RFC 3110: Section 2. RSA Public KEY Resource Records -func exponentToBuf(_E int) []byte { - var buf []byte - i := big.NewInt(int64(_E)).Bytes() - if len(i) < 256 { - buf = make([]byte, 1, 1+len(i)) - buf[0] = uint8(len(i)) - } else { - buf = make([]byte, 3, 3+len(i)) - buf[0] = 0 - buf[1] = uint8(len(i) >> 8) - buf[2] = uint8(len(i)) - } - buf = append(buf, i...) - return buf -} - -// Set the public key for X and Y for Curve. The two -// values are just concatenated. -func curveToBuf(_X, _Y *big.Int, intlen int) []byte { - buf := intToBytes(_X, intlen) - buf = append(buf, intToBytes(_Y, intlen)...) - return buf -} diff --git a/vendor/github.com/miekg/dns/dnssec_keyscan.go b/vendor/github.com/miekg/dns/dnssec_keyscan.go deleted file mode 100644 index 9c9972db6e..0000000000 --- a/vendor/github.com/miekg/dns/dnssec_keyscan.go +++ /dev/null @@ -1,310 +0,0 @@ -package dns - -import ( - "bufio" - "crypto" - "crypto/ecdsa" - "crypto/ed25519" - "crypto/rsa" - "io" - "math/big" - "strconv" - "strings" -) - -// NewPrivateKey returns a PrivateKey by parsing the string s. -// s should be in the same form of the BIND private key files. -func (k *DNSKEY) NewPrivateKey(s string) (crypto.PrivateKey, error) { - if s == "" || s[len(s)-1] != '\n' { // We need a closing newline - return k.ReadPrivateKey(strings.NewReader(s+"\n"), "") - } - return k.ReadPrivateKey(strings.NewReader(s), "") -} - -// ReadPrivateKey reads a private key from the io.Reader q. The string file is -// only used in error reporting. -// The public key must be known, because some cryptographic algorithms embed -// the public inside the privatekey. -func (k *DNSKEY) ReadPrivateKey(q io.Reader, file string) (crypto.PrivateKey, error) { - m, err := parseKey(q, file) - if m == nil { - return nil, err - } - if _, ok := m["private-key-format"]; !ok { - return nil, ErrPrivKey - } - if m["private-key-format"] != "v1.2" && m["private-key-format"] != "v1.3" { - return nil, ErrPrivKey - } - // TODO(mg): check if the pubkey matches the private key - algoStr, _, _ := strings.Cut(m["algorithm"], " ") - algo, err := strconv.ParseUint(algoStr, 10, 8) - if err != nil { - return nil, ErrPrivKey - } - switch uint8(algo) { - case RSASHA1, RSASHA1NSEC3SHA1, RSASHA256, RSASHA512: - priv, err := readPrivateKeyRSA(m) - if err != nil { - return nil, err - } - pub := k.publicKeyRSA() - if pub == nil { - return nil, ErrKey - } - priv.PublicKey = *pub - return priv, nil - case ECDSAP256SHA256, ECDSAP384SHA384: - priv, err := readPrivateKeyECDSA(m) - if err != nil { - return nil, err - } - pub := k.publicKeyECDSA() - if pub == nil { - return nil, ErrKey - } - priv.PublicKey = *pub - return priv, nil - case ED25519: - return readPrivateKeyED25519(m) - default: - return nil, ErrAlg - } -} - -// Read a private key (file) string and create a public key. Return the private key. -func readPrivateKeyRSA(m map[string]string) (*rsa.PrivateKey, error) { - p := new(rsa.PrivateKey) - p.Primes = []*big.Int{nil, nil} - for k, v := range m { - switch k { - case "modulus", "publicexponent", "privateexponent", "prime1", "prime2": - v1, err := fromBase64([]byte(v)) - if err != nil { - return nil, err - } - switch k { - case "modulus": - p.PublicKey.N = new(big.Int).SetBytes(v1) - case "publicexponent": - i := new(big.Int).SetBytes(v1) - p.PublicKey.E = int(i.Int64()) // int64 should be large enough - case "privateexponent": - p.D = new(big.Int).SetBytes(v1) - case "prime1": - p.Primes[0] = new(big.Int).SetBytes(v1) - case "prime2": - p.Primes[1] = new(big.Int).SetBytes(v1) - } - case "exponent1", "exponent2", "coefficient": - // not used in Go (yet) - case "created", "publish", "activate": - // not used in Go (yet) - } - } - return p, nil -} - -func readPrivateKeyECDSA(m map[string]string) (*ecdsa.PrivateKey, error) { - p := new(ecdsa.PrivateKey) - p.D = new(big.Int) - // TODO: validate that the required flags are present - for k, v := range m { - switch k { - case "privatekey": - v1, err := fromBase64([]byte(v)) - if err != nil { - return nil, err - } - p.D.SetBytes(v1) - case "created", "publish", "activate": - /* not used in Go (yet) */ - } - } - return p, nil -} - -func readPrivateKeyED25519(m map[string]string) (ed25519.PrivateKey, error) { - var p ed25519.PrivateKey - // TODO: validate that the required flags are present - for k, v := range m { - switch k { - case "privatekey": - p1, err := fromBase64([]byte(v)) - if err != nil { - return nil, err - } - if len(p1) != ed25519.SeedSize { - return nil, ErrPrivKey - } - p = ed25519.NewKeyFromSeed(p1) - case "created", "publish", "activate": - /* not used in Go (yet) */ - } - } - return p, nil -} - -// parseKey reads a private key from r. It returns a map[string]string, -// with the key-value pairs, or an error when the file is not correct. -func parseKey(r io.Reader, file string) (map[string]string, error) { - m := make(map[string]string) - var k string - - c := newKLexer(r) - - for l, ok := c.Next(); ok; l, ok = c.Next() { - // It should alternate - switch l.value { - case zKey: - k = l.token - case zValue: - if k == "" { - return nil, &ParseError{file: file, err: "no private key seen", lex: l} - } - - m[strings.ToLower(k)] = l.token - k = "" - } - } - - // Surface any read errors from r. - if err := c.Err(); err != nil { - return nil, &ParseError{file: file, err: err.Error()} - } - - return m, nil -} - -type klexer struct { - br io.ByteReader - - readErr error - - line int - column int - - key bool - - eol bool // end-of-line -} - -func newKLexer(r io.Reader) *klexer { - br, ok := r.(io.ByteReader) - if !ok { - br = bufio.NewReaderSize(r, 1024) - } - - return &klexer{ - br: br, - - line: 1, - - key: true, - } -} - -func (kl *klexer) Err() error { - if kl.readErr == io.EOF { - return nil - } - - return kl.readErr -} - -// readByte returns the next byte from the input -func (kl *klexer) readByte() (byte, bool) { - if kl.readErr != nil { - return 0, false - } - - c, err := kl.br.ReadByte() - if err != nil { - kl.readErr = err - return 0, false - } - - // delay the newline handling until the next token is delivered, - // fixes off-by-one errors when reporting a parse error. - if kl.eol { - kl.line++ - kl.column = 0 - kl.eol = false - } - - if c == '\n' { - kl.eol = true - } else { - kl.column++ - } - - return c, true -} - -func (kl *klexer) Next() (lex, bool) { - var ( - l lex - - str strings.Builder - - commt bool - ) - - for x, ok := kl.readByte(); ok; x, ok = kl.readByte() { - l.line, l.column = kl.line, kl.column - - switch x { - case ':': - if commt || !kl.key { - break - } - - kl.key = false - - // Next token is a space, eat it - kl.readByte() - - l.value = zKey - l.token = str.String() - return l, true - case ';': - commt = true - case '\n': - if commt { - // Reset a comment - commt = false - } - - if kl.key && str.Len() == 0 { - // ignore empty lines - break - } - - kl.key = true - - l.value = zValue - l.token = str.String() - return l, true - default: - if commt { - break - } - - str.WriteByte(x) - } - } - - if kl.readErr != nil && kl.readErr != io.EOF { - // Don't return any tokens after a read error occurs. - return lex{value: zEOF}, false - } - - if str.Len() > 0 { - // Send remainder - l.value = zValue - l.token = str.String() - return l, true - } - - return lex{value: zEOF}, false -} diff --git a/vendor/github.com/miekg/dns/dnssec_privkey.go b/vendor/github.com/miekg/dns/dnssec_privkey.go deleted file mode 100644 index f160772964..0000000000 --- a/vendor/github.com/miekg/dns/dnssec_privkey.go +++ /dev/null @@ -1,77 +0,0 @@ -package dns - -import ( - "crypto" - "crypto/ecdsa" - "crypto/ed25519" - "crypto/rsa" - "math/big" - "strconv" -) - -const format = "Private-key-format: v1.3\n" - -var bigIntOne = big.NewInt(1) - -// PrivateKeyString converts a PrivateKey to a string. This string has the same -// format as the private-key-file of BIND9 (Private-key-format: v1.3). -// It needs some info from the key (the algorithm), so its a method of the DNSKEY. -// It supports *rsa.PrivateKey, *ecdsa.PrivateKey and ed25519.PrivateKey. -func (r *DNSKEY) PrivateKeyString(p crypto.PrivateKey) string { - algorithm := strconv.Itoa(int(r.Algorithm)) - algorithm += " (" + AlgorithmToString[r.Algorithm] + ")" - - switch p := p.(type) { - case *rsa.PrivateKey: - modulus := toBase64(p.PublicKey.N.Bytes()) - e := big.NewInt(int64(p.PublicKey.E)) - publicExponent := toBase64(e.Bytes()) - privateExponent := toBase64(p.D.Bytes()) - prime1 := toBase64(p.Primes[0].Bytes()) - prime2 := toBase64(p.Primes[1].Bytes()) - // Calculate Exponent1/2 and Coefficient as per: http://en.wikipedia.org/wiki/RSA#Using_the_Chinese_remainder_algorithm - // and from: http://code.google.com/p/go/issues/detail?id=987 - p1 := new(big.Int).Sub(p.Primes[0], bigIntOne) - q1 := new(big.Int).Sub(p.Primes[1], bigIntOne) - exp1 := new(big.Int).Mod(p.D, p1) - exp2 := new(big.Int).Mod(p.D, q1) - coeff := new(big.Int).ModInverse(p.Primes[1], p.Primes[0]) - - exponent1 := toBase64(exp1.Bytes()) - exponent2 := toBase64(exp2.Bytes()) - coefficient := toBase64(coeff.Bytes()) - - return format + - "Algorithm: " + algorithm + "\n" + - "Modulus: " + modulus + "\n" + - "PublicExponent: " + publicExponent + "\n" + - "PrivateExponent: " + privateExponent + "\n" + - "Prime1: " + prime1 + "\n" + - "Prime2: " + prime2 + "\n" + - "Exponent1: " + exponent1 + "\n" + - "Exponent2: " + exponent2 + "\n" + - "Coefficient: " + coefficient + "\n" - - case *ecdsa.PrivateKey: - var intlen int - switch r.Algorithm { - case ECDSAP256SHA256: - intlen = 32 - case ECDSAP384SHA384: - intlen = 48 - } - private := toBase64(intToBytes(p.D, intlen)) - return format + - "Algorithm: " + algorithm + "\n" + - "PrivateKey: " + private + "\n" - - case ed25519.PrivateKey: - private := toBase64(p.Seed()) - return format + - "Algorithm: " + algorithm + "\n" + - "PrivateKey: " + private + "\n" - - default: - return "" - } -} diff --git a/vendor/github.com/miekg/dns/doc.go b/vendor/github.com/miekg/dns/doc.go deleted file mode 100644 index 586ab6917e..0000000000 --- a/vendor/github.com/miekg/dns/doc.go +++ /dev/null @@ -1,292 +0,0 @@ -/* -Package dns implements a full featured interface to the Domain Name System. -Both server- and client-side programming is supported. The package allows -complete control over what is sent out to the DNS. The API follows the -less-is-more principle, by presenting a small, clean interface. - -It supports (asynchronous) querying/replying, incoming/outgoing zone transfers, -TSIG, EDNS0, dynamic updates, notifies and DNSSEC validation/signing. - -Note that domain names MUST be fully qualified before sending them, unqualified -names in a message will result in a packing failure. - -Resource records are native types. They are not stored in wire format. Basic -usage pattern for creating a new resource record: - - r := new(dns.MX) - r.Hdr = dns.RR_Header{Name: "miek.nl.", Rrtype: dns.TypeMX, Class: dns.ClassINET, Ttl: 3600} - r.Preference = 10 - r.Mx = "mx.miek.nl." - -Or directly from a string: - - mx, err := dns.NewRR("miek.nl. 3600 IN MX 10 mx.miek.nl.") - -Or when the default origin (.) and TTL (3600) and class (IN) suit you: - - mx, err := dns.NewRR("miek.nl MX 10 mx.miek.nl") - -Or even: - - mx, err := dns.NewRR("$ORIGIN nl.\nmiek 1H IN MX 10 mx.miek") - -In the DNS messages are exchanged, these messages contain resource records -(sets). Use pattern for creating a message: - - m := new(dns.Msg) - m.SetQuestion("miek.nl.", dns.TypeMX) - -Or when not certain if the domain name is fully qualified: - - m.SetQuestion(dns.Fqdn("miek.nl"), dns.TypeMX) - -The message m is now a message with the question section set to ask the MX -records for the miek.nl. zone. - -The following is slightly more verbose, but more flexible: - - m1 := new(dns.Msg) - m1.Id = dns.Id() - m1.RecursionDesired = true - m1.Question = make([]dns.Question, 1) - m1.Question[0] = dns.Question{"miek.nl.", dns.TypeMX, dns.ClassINET} - -After creating a message it can be sent. Basic use pattern for synchronous -querying the DNS at a server configured on 127.0.0.1 and port 53: - - c := new(dns.Client) - in, rtt, err := c.Exchange(m1, "127.0.0.1:53") - -Suppressing multiple outstanding queries (with the same question, type and -class) is as easy as setting: - - c.SingleInflight = true - -More advanced options are available using a net.Dialer and the corresponding API. -For example it is possible to set a timeout, or to specify a source IP address -and port to use for the connection: - - c := new(dns.Client) - laddr := net.UDPAddr{ - IP: net.ParseIP("[::1]"), - Port: 12345, - Zone: "", - } - c.Dialer = &net.Dialer{ - Timeout: 200 * time.Millisecond, - LocalAddr: &laddr, - } - in, rtt, err := c.Exchange(m1, "8.8.8.8:53") - -If these "advanced" features are not needed, a simple UDP query can be sent, -with: - - in, err := dns.Exchange(m1, "127.0.0.1:53") - -When this functions returns you will get DNS message. A DNS message consists -out of four sections. -The question section: in.Question, the answer section: in.Answer, -the authority section: in.Ns and the additional section: in.Extra. - -Each of these sections (except the Question section) contain a []RR. Basic -use pattern for accessing the rdata of a TXT RR as the first RR in -the Answer section: - - if t, ok := in.Answer[0].(*dns.TXT); ok { - // do something with t.Txt - } - -# Domain Name and TXT Character String Representations - -Both domain names and TXT character strings are converted to presentation form -both when unpacked and when converted to strings. - -For TXT character strings, tabs, carriage returns and line feeds will be -converted to \t, \r and \n respectively. Back slashes and quotations marks will -be escaped. Bytes below 32 and above 127 will be converted to \DDD form. - -For domain names, in addition to the above rules brackets, periods, spaces, -semicolons and the at symbol are escaped. - -# DNSSEC - -DNSSEC (DNS Security Extension) adds a layer of security to the DNS. It uses -public key cryptography to sign resource records. The public keys are stored in -DNSKEY records and the signatures in RRSIG records. - -Requesting DNSSEC information for a zone is done by adding the DO (DNSSEC OK) -bit to a request. - - m := new(dns.Msg) - m.SetEdns0(4096, true) - -Signature generation, signature verification and key generation are all supported. - -# DYNAMIC UPDATES - -Dynamic updates reuses the DNS message format, but renames three of the -sections. Question is Zone, Answer is Prerequisite, Authority is Update, only -the Additional is not renamed. See RFC 2136 for the gory details. - -You can set a rather complex set of rules for the existence of absence of -certain resource records or names in a zone to specify if resource records -should be added or removed. The table from RFC 2136 supplemented with the Go -DNS function shows which functions exist to specify the prerequisites. - - 3.2.4 - Table Of Metavalues Used In Prerequisite Section - - CLASS TYPE RDATA Meaning Function - -------------------------------------------------------------- - ANY ANY empty Name is in use dns.NameUsed - ANY rrset empty RRset exists (value indep) dns.RRsetUsed - NONE ANY empty Name is not in use dns.NameNotUsed - NONE rrset empty RRset does not exist dns.RRsetNotUsed - zone rrset rr RRset exists (value dep) dns.Used - -The prerequisite section can also be left empty. If you have decided on the -prerequisites you can tell what RRs should be added or deleted. The next table -shows the options you have and what functions to call. - - 3.4.2.6 - Table Of Metavalues Used In Update Section - - CLASS TYPE RDATA Meaning Function - --------------------------------------------------------------- - ANY ANY empty Delete all RRsets from name dns.RemoveName - ANY rrset empty Delete an RRset dns.RemoveRRset - NONE rrset rr Delete an RR from RRset dns.Remove - zone rrset rr Add to an RRset dns.Insert - -# TRANSACTION SIGNATURE - -An TSIG or transaction signature adds a HMAC TSIG record to each message sent. -The supported algorithms include: HmacSHA1, HmacSHA256 and HmacSHA512. - -Basic use pattern when querying with a TSIG name "axfr." (note that these key names -must be fully qualified - as they are domain names) and the base64 secret -"so6ZGir4GPAqINNh9U5c3A==": - -If an incoming message contains a TSIG record it MUST be the last record in -the additional section (RFC2845 3.2). This means that you should make the -call to SetTsig last, right before executing the query. If you make any -changes to the RRset after calling SetTsig() the signature will be incorrect. - - c := new(dns.Client) - c.TsigSecret = map[string]string{"axfr.": "so6ZGir4GPAqINNh9U5c3A=="} - m := new(dns.Msg) - m.SetQuestion("miek.nl.", dns.TypeMX) - m.SetTsig("axfr.", dns.HmacSHA256, 300, time.Now().Unix()) - ... - // When sending the TSIG RR is calculated and filled in before sending - -When requesting an zone transfer (almost all TSIG usage is when requesting zone -transfers), with TSIG, this is the basic use pattern. In this example we -request an AXFR for miek.nl. with TSIG key named "axfr." and secret -"so6ZGir4GPAqINNh9U5c3A==" and using the server 176.58.119.54: - - t := new(dns.Transfer) - m := new(dns.Msg) - t.TsigSecret = map[string]string{"axfr.": "so6ZGir4GPAqINNh9U5c3A=="} - m.SetAxfr("miek.nl.") - m.SetTsig("axfr.", dns.HmacSHA256, 300, time.Now().Unix()) - c, err := t.In(m, "176.58.119.54:53") - for r := range c { ... } - -You can now read the records from the transfer as they come in. Each envelope -is checked with TSIG. If something is not correct an error is returned. - -A custom TSIG implementation can be used. This requires additional code to -perform any session establishment and signature generation/verification. The -client must be configured with an implementation of the TsigProvider interface: - - type Provider struct{} - - func (*Provider) Generate(msg []byte, tsig *dns.TSIG) ([]byte, error) { - // Use tsig.Hdr.Name and tsig.Algorithm in your code to - // generate the MAC using msg as the payload. - } - - func (*Provider) Verify(msg []byte, tsig *dns.TSIG) error { - // Use tsig.Hdr.Name and tsig.Algorithm in your code to verify - // that msg matches the value in tsig.MAC. - } - - c := new(dns.Client) - c.TsigProvider = new(Provider) - m := new(dns.Msg) - m.SetQuestion("miek.nl.", dns.TypeMX) - m.SetTsig(keyname, dns.HmacSHA256, 300, time.Now().Unix()) - ... - // TSIG RR is calculated by calling your Generate method - -Basic use pattern validating and replying to a message that has TSIG set. - - server := &dns.Server{Addr: ":53", Net: "udp"} - server.TsigSecret = map[string]string{"axfr.": "so6ZGir4GPAqINNh9U5c3A=="} - go server.ListenAndServe() - dns.HandleFunc(".", handleRequest) - - func handleRequest(w dns.ResponseWriter, r *dns.Msg) { - m := new(dns.Msg) - m.SetReply(r) - if r.IsTsig() != nil { - if w.TsigStatus() == nil { - // *Msg r has an TSIG record and it was validated - m.SetTsig("axfr.", dns.HmacSHA256, 300, time.Now().Unix()) - } else { - // *Msg r has an TSIG records and it was not validated - } - } - w.WriteMsg(m) - } - -# PRIVATE RRS - -RFC 6895 sets aside a range of type codes for private use. This range is 65,280 -- 65,534 (0xFF00 - 0xFFFE). When experimenting with new Resource Records these -can be used, before requesting an official type code from IANA. - -See https://miek.nl/2014/september/21/idn-and-private-rr-in-go-dns/ for more -information. - -# EDNS0 - -EDNS0 is an extension mechanism for the DNS defined in RFC 2671 and updated by -RFC 6891. It defines a new RR type, the OPT RR, which is then completely -abused. - -Basic use pattern for creating an (empty) OPT RR: - - o := new(dns.OPT) - o.Hdr.Name = "." // MUST be the root zone, per definition. - o.Hdr.Rrtype = dns.TypeOPT - -The rdata of an OPT RR consists out of a slice of EDNS0 (RFC 6891) interfaces. -Currently only a few have been standardized: EDNS0_NSID (RFC 5001) and -EDNS0_SUBNET (RFC 7871). Note that these options may be combined in an OPT RR. -Basic use pattern for a server to check if (and which) options are set: - - // o is a dns.OPT - for _, s := range o.Option { - switch e := s.(type) { - case *dns.EDNS0_NSID: - // do stuff with e.Nsid - case *dns.EDNS0_SUBNET: - // access e.Family, e.Address, etc. - } - } - -SIG(0) - -From RFC 2931: - - SIG(0) provides protection for DNS transactions and requests .... - ... protection for glue records, DNS requests, protection for message headers - on requests and responses, and protection of the overall integrity of a response. - -It works like TSIG, except that SIG(0) uses public key cryptography, instead of -the shared secret approach in TSIG. Supported algorithms: ECDSAP256SHA256, -ECDSAP384SHA384, RSASHA1, RSASHA256 and RSASHA512. - -Signing subsequent messages in multi-message sessions is not implemented. -*/ -package dns diff --git a/vendor/github.com/miekg/dns/duplicate.go b/vendor/github.com/miekg/dns/duplicate.go deleted file mode 100644 index d21ae1cac1..0000000000 --- a/vendor/github.com/miekg/dns/duplicate.go +++ /dev/null @@ -1,37 +0,0 @@ -package dns - -//go:generate go run duplicate_generate.go - -// IsDuplicate checks of r1 and r2 are duplicates of each other, excluding the TTL. -// So this means the header data is equal *and* the RDATA is the same. Returns true -// if so, otherwise false. It's a protocol violation to have identical RRs in a message. -func IsDuplicate(r1, r2 RR) bool { - // Check whether the record header is identical. - if !r1.Header().isDuplicate(r2.Header()) { - return false - } - - // Check whether the RDATA is identical. - return r1.isDuplicate(r2) -} - -func (r1 *RR_Header) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*RR_Header) - if !ok { - return false - } - if r1.Class != r2.Class { - return false - } - if r1.Rrtype != r2.Rrtype { - return false - } - if !isDuplicateName(r1.Name, r2.Name) { - return false - } - // ignore TTL - return true -} - -// isDuplicateName checks if the domain names s1 and s2 are equal. -func isDuplicateName(s1, s2 string) bool { return equal(s1, s2) } diff --git a/vendor/github.com/miekg/dns/edns.go b/vendor/github.com/miekg/dns/edns.go deleted file mode 100644 index 89318b7500..0000000000 --- a/vendor/github.com/miekg/dns/edns.go +++ /dev/null @@ -1,970 +0,0 @@ -package dns - -import ( - "encoding/binary" - "encoding/hex" - "errors" - "fmt" - "net" - "strconv" -) - -// EDNS0 Option codes. -const ( - EDNS0LLQ = 0x1 // long lived queries: http://tools.ietf.org/html/draft-sekar-dns-llq-01 - EDNS0UL = 0x2 // update lease draft: http://files.dns-sd.org/draft-sekar-dns-ul.txt - EDNS0NSID = 0x3 // nsid (See RFC 5001) - EDNS0ESU = 0x4 // ENUM Source-URI draft: https://datatracker.ietf.org/doc/html/draft-kaplan-enum-source-uri-00 - EDNS0DAU = 0x5 // DNSSEC Algorithm Understood - EDNS0DHU = 0x6 // DS Hash Understood - EDNS0N3U = 0x7 // NSEC3 Hash Understood - EDNS0SUBNET = 0x8 // client-subnet (See RFC 7871) - EDNS0EXPIRE = 0x9 // EDNS0 expire - EDNS0COOKIE = 0xa // EDNS0 Cookie - EDNS0TCPKEEPALIVE = 0xb // EDNS0 tcp keep alive (See RFC 7828) - EDNS0PADDING = 0xc // EDNS0 padding (See RFC 7830) - EDNS0EDE = 0xf // EDNS0 extended DNS errors (See RFC 8914) - EDNS0REPORTING = 0x12 // EDNS0 reporting (See RFC 9567) - EDNS0ZONEVERSION = 0x13 // EDNS0 Zone Version (See RFC 9660) - EDNS0LOCALSTART = 0xFDE9 // Beginning of range reserved for local/experimental use (See RFC 6891) - EDNS0LOCALEND = 0xFFFE // End of range reserved for local/experimental use (See RFC 6891) - _DO = 1 << 15 // DNSSEC OK - _CO = 1 << 14 // Compact Answers OK -) - -// makeDataOpt is used to unpack the EDNS0 option(s) from a message. -func makeDataOpt(code uint16) EDNS0 { - // All the EDNS0.* constants above need to be in this switch. - switch code { - case EDNS0LLQ: - return new(EDNS0_LLQ) - case EDNS0UL: - return new(EDNS0_UL) - case EDNS0NSID: - return new(EDNS0_NSID) - case EDNS0DAU: - return new(EDNS0_DAU) - case EDNS0DHU: - return new(EDNS0_DHU) - case EDNS0N3U: - return new(EDNS0_N3U) - case EDNS0SUBNET: - return new(EDNS0_SUBNET) - case EDNS0EXPIRE: - return new(EDNS0_EXPIRE) - case EDNS0COOKIE: - return new(EDNS0_COOKIE) - case EDNS0TCPKEEPALIVE: - return new(EDNS0_TCP_KEEPALIVE) - case EDNS0PADDING: - return new(EDNS0_PADDING) - case EDNS0EDE: - return new(EDNS0_EDE) - case EDNS0ESU: - return new(EDNS0_ESU) - case EDNS0REPORTING: - return new(EDNS0_REPORTING) - case EDNS0ZONEVERSION: - return new(EDNS0_ZONEVERSION) - default: - e := new(EDNS0_LOCAL) - e.Code = code - return e - } -} - -// OPT is the EDNS0 RR appended to messages to convey extra (meta) information. See RFC 6891. -type OPT struct { - Hdr RR_Header - Option []EDNS0 `dns:"opt"` -} - -func (rr *OPT) String() string { - s := "\n;; OPT PSEUDOSECTION:\n; EDNS: version " + strconv.Itoa(int(rr.Version())) + "; " - s += "flags:" - if rr.Do() { - s += " do" - } - if rr.Co() { - s += " co" - } - s += "; " - if z := rr.Z(); z != 0 { - s += fmt.Sprintf("MBZ: 0x%04x, ", z) - } - s += "udp: " + strconv.Itoa(int(rr.UDPSize())) - - for _, o := range rr.Option { - switch o.(type) { - case *EDNS0_NSID: - s += "\n; NSID: " + o.String() - h, e := o.pack() - var r string - if e == nil { - for _, c := range h { - r += "(" + string(c) + ")" - } - s += " " + r - } - case *EDNS0_SUBNET: - s += "\n; SUBNET: " + o.String() - case *EDNS0_COOKIE: - s += "\n; COOKIE: " + o.String() - case *EDNS0_EXPIRE: - s += "\n; EXPIRE: " + o.String() - case *EDNS0_TCP_KEEPALIVE: - s += "\n; KEEPALIVE: " + o.String() - case *EDNS0_UL: - s += "\n; UPDATE LEASE: " + o.String() - case *EDNS0_LLQ: - s += "\n; LONG LIVED QUERIES: " + o.String() - case *EDNS0_DAU: - s += "\n; DNSSEC ALGORITHM UNDERSTOOD: " + o.String() - case *EDNS0_DHU: - s += "\n; DS HASH UNDERSTOOD: " + o.String() - case *EDNS0_N3U: - s += "\n; NSEC3 HASH UNDERSTOOD: " + o.String() - case *EDNS0_LOCAL: - s += "\n; LOCAL OPT: " + o.String() - case *EDNS0_PADDING: - s += "\n; PADDING: " + o.String() - case *EDNS0_EDE: - s += "\n; EDE: " + o.String() - case *EDNS0_ESU: - s += "\n; ESU: " + o.String() - case *EDNS0_REPORTING: - s += "\n; REPORT-CHANNEL: " + o.String() - case *EDNS0_ZONEVERSION: - s += "\n; ZONEVERSION: " + o.String() - } - } - return s -} - -func (rr *OPT) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - for _, o := range rr.Option { - l += 4 // Account for 2-byte option code and 2-byte option length. - lo, _ := o.pack() - l += len(lo) - } - return l -} - -func (*OPT) parse(c *zlexer, origin string) *ParseError { - return &ParseError{err: "OPT records do not have a presentation format"} -} - -func (rr *OPT) isDuplicate(r2 RR) bool { return false } - -// Version returns the EDNS version used. Only zero is defined. -func (rr *OPT) Version() uint8 { - return uint8(rr.Hdr.Ttl & 0x00FF0000 >> 16) -} - -// SetVersion sets the version of EDNS. This is usually zero. -func (rr *OPT) SetVersion(v uint8) { - rr.Hdr.Ttl = rr.Hdr.Ttl&0xFF00FFFF | uint32(v)<<16 -} - -// ExtendedRcode returns the EDNS extended RCODE field (the upper 8 bits of the TTL). -func (rr *OPT) ExtendedRcode() int { - return int(rr.Hdr.Ttl&0xFF000000>>24) << 4 -} - -// SetExtendedRcode sets the EDNS extended RCODE field. -// -// If the RCODE is not an extended RCODE, will reset the extended RCODE field to 0. -func (rr *OPT) SetExtendedRcode(v uint16) { - rr.Hdr.Ttl = rr.Hdr.Ttl&0x00FFFFFF | uint32(v>>4)<<24 -} - -// UDPSize returns the UDP buffer size. -func (rr *OPT) UDPSize() uint16 { - return rr.Hdr.Class -} - -// SetUDPSize sets the UDP buffer size. -func (rr *OPT) SetUDPSize(size uint16) { - rr.Hdr.Class = size -} - -// Do returns the value of the DO (DNSSEC OK) bit. -func (rr *OPT) Do() bool { - return rr.Hdr.Ttl&_DO == _DO -} - -// SetDo sets the DO (DNSSEC OK) bit. -// If we pass an argument, set the DO bit to that value. -// It is possible to pass 2 or more arguments, but they will be ignored. -func (rr *OPT) SetDo(do ...bool) { - if len(do) == 1 { - if do[0] { - rr.Hdr.Ttl |= _DO - } else { - rr.Hdr.Ttl &^= _DO - } - } else { - rr.Hdr.Ttl |= _DO - } -} - -// Co returns the value of the CO (Compact Answers OK) bit. -func (rr *OPT) Co() bool { - return rr.Hdr.Ttl&_CO == _CO -} - -// SetCo sets the CO (Compact Answers OK) bit. -// If we pass an argument, set the CO bit to that value. -// It is possible to pass 2 or more arguments, but they will be ignored. -func (rr *OPT) SetCo(co ...bool) { - if len(co) == 1 { - if co[0] { - rr.Hdr.Ttl |= _CO - } else { - rr.Hdr.Ttl &^= _CO - } - } else { - rr.Hdr.Ttl |= _CO - } -} - -// Z returns the Z part of the OPT RR as a uint16 with only the 14 least significant bits used. -func (rr *OPT) Z() uint16 { - return uint16(rr.Hdr.Ttl & 0x3FFF) -} - -// SetZ sets the Z part of the OPT RR, note only the 14 least significant bits of z are used. -func (rr *OPT) SetZ(z uint16) { - rr.Hdr.Ttl = rr.Hdr.Ttl&^0x3FFF | uint32(z&0x3FFF) -} - -// EDNS0 defines an EDNS0 Option. An OPT RR can have multiple options appended to it. -type EDNS0 interface { - // Option returns the option code for the option. - Option() uint16 - // pack returns the bytes of the option data. - pack() ([]byte, error) - // unpack sets the data as found in the buffer. Is also sets - // the length of the slice as the length of the option data. - unpack([]byte) error - // String returns the string representation of the option. - String() string - // copy returns a deep-copy of the option. - copy() EDNS0 -} - -// EDNS0_NSID option is used to retrieve a nameserver -// identifier. When sending a request Nsid must be set to the empty string -// The identifier is an opaque string encoded as hex. -// Basic use pattern for creating an nsid option: -// -// o := new(dns.OPT) -// o.Hdr.Name = "." -// o.Hdr.Rrtype = dns.TypeOPT -// e := new(dns.EDNS0_NSID) -// e.Code = dns.EDNS0NSID -// e.Nsid = "AA" -// o.Option = append(o.Option, e) -type EDNS0_NSID struct { - Code uint16 // always EDNS0NSID - Nsid string // string needs to be hex encoded -} - -func (e *EDNS0_NSID) pack() ([]byte, error) { - h, err := hex.DecodeString(e.Nsid) - if err != nil { - return nil, err - } - return h, nil -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_NSID) Option() uint16 { return EDNS0NSID } // Option returns the option code. -func (e *EDNS0_NSID) unpack(b []byte) error { e.Nsid = hex.EncodeToString(b); return nil } -func (e *EDNS0_NSID) String() string { return e.Nsid } -func (e *EDNS0_NSID) copy() EDNS0 { return &EDNS0_NSID{e.Code, e.Nsid} } - -// EDNS0_SUBNET is the subnet option that is used to give the remote nameserver -// an idea of where the client lives. See RFC 7871. It can then give back a different -// answer depending on the location or network topology. -// Basic use pattern for creating an subnet option: -// -// o := new(dns.OPT) -// o.Hdr.Name = "." -// o.Hdr.Rrtype = dns.TypeOPT -// e := new(dns.EDNS0_SUBNET) -// e.Code = dns.EDNS0SUBNET // by default this is filled in through unpacking OPT packets (unpackDataOpt) -// e.Family = 1 // 1 for IPv4 source address, 2 for IPv6 -// e.SourceNetmask = 32 // 32 for IPV4, 128 for IPv6 -// e.SourceScope = 0 -// e.Address = net.ParseIP("127.0.0.1").To4() // for IPv4 -// // e.Address = net.ParseIP("2001:7b8:32a::2") // for IPV6 -// o.Option = append(o.Option, e) -// -// This code will parse all the available bits when unpacking (up to optlen). -// When packing it will apply SourceNetmask. If you need more advanced logic, -// patches welcome and good luck. -type EDNS0_SUBNET struct { - Code uint16 // always EDNS0SUBNET - Family uint16 // 1 for IP, 2 for IP6 - SourceNetmask uint8 - SourceScope uint8 - Address net.IP -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_SUBNET) Option() uint16 { return EDNS0SUBNET } - -func (e *EDNS0_SUBNET) pack() ([]byte, error) { - switch e.Family { - case 0: - // "dig" sets AddressFamily to 0 if SourceNetmask is also 0 - // We might don't need to complain either - if e.SourceNetmask != 0 { - return nil, errors.New("bad address family") - } - b := make([]byte, 4) - b[3] = e.SourceScope - return b, nil - case 1: - if e.SourceNetmask > net.IPv4len*8 { - return nil, errors.New("bad netmask") - } - ip4 := e.Address.To4() - if len(ip4) != net.IPv4len { - return nil, errors.New("bad address") - } - needLength := (e.SourceNetmask + 8 - 1) / 8 // division rounding up - b := make([]byte, 4+needLength) - binary.BigEndian.PutUint16(b[0:], e.Family) - b[2] = e.SourceNetmask - b[3] = e.SourceScope - if needLength > 0 { - ip := ip4.Mask(net.CIDRMask(int(e.SourceNetmask), net.IPv4len*8)) - copy(b[4:], ip[:needLength]) - } - return b, nil - case 2: - if e.SourceNetmask > net.IPv6len*8 { - return nil, errors.New("bad netmask") - } - if len(e.Address) != net.IPv6len { - return nil, errors.New("bad address") - } - needLength := (e.SourceNetmask + 8 - 1) / 8 // division rounding up - b := make([]byte, 4+needLength) - binary.BigEndian.PutUint16(b[0:], e.Family) - b[2] = e.SourceNetmask - b[3] = e.SourceScope - if needLength > 0 { - ip := e.Address.Mask(net.CIDRMask(int(e.SourceNetmask), net.IPv6len*8)) - copy(b[4:], ip[:needLength]) - } - return b, nil - default: - return nil, errors.New("bad address family") - } -} - -func (e *EDNS0_SUBNET) unpack(b []byte) error { - if len(b) < 4 { - return ErrBuf - } - e.Family = binary.BigEndian.Uint16(b) - e.SourceNetmask = b[2] - e.SourceScope = b[3] - switch e.Family { - case 0: - // "dig" sets AddressFamily to 0 if SourceNetmask is also 0 - // It's okay to accept such a packet - if e.SourceNetmask != 0 { - return errors.New("bad address family") - } - e.Address = net.IPv4(0, 0, 0, 0) - case 1: - if e.SourceNetmask > net.IPv4len*8 || e.SourceScope > net.IPv4len*8 { - return errors.New("bad netmask") - } - addr := make(net.IP, net.IPv4len) - copy(addr, b[4:]) - e.Address = addr.To16() - case 2: - if e.SourceNetmask > net.IPv6len*8 || e.SourceScope > net.IPv6len*8 { - return errors.New("bad netmask") - } - addr := make(net.IP, net.IPv6len) - copy(addr, b[4:]) - e.Address = addr - default: - return errors.New("bad address family") - } - return nil -} - -func (e *EDNS0_SUBNET) String() (s string) { - if e.Address == nil { - s = "" - } else if e.Address.To4() != nil { - s = e.Address.String() - } else { - s = "[" + e.Address.String() + "]" - } - s += "/" + strconv.Itoa(int(e.SourceNetmask)) + "/" + strconv.Itoa(int(e.SourceScope)) - return -} - -func (e *EDNS0_SUBNET) copy() EDNS0 { - return &EDNS0_SUBNET{ - e.Code, - e.Family, - e.SourceNetmask, - e.SourceScope, - e.Address, - } -} - -// The EDNS0_COOKIE option is used to add a DNS Cookie to a message. -// -// o := new(dns.OPT) -// o.Hdr.Name = "." -// o.Hdr.Rrtype = dns.TypeOPT -// e := new(dns.EDNS0_COOKIE) -// e.Code = dns.EDNS0COOKIE -// e.Cookie = "24a5ac.." -// o.Option = append(o.Option, e) -// -// The Cookie field consists out of a client cookie (RFC 7873 Section 4), that is -// always 8 bytes. It may then optionally be followed by the server cookie. The server -// cookie is of variable length, 8 to a maximum of 32 bytes. In other words: -// -// cCookie := o.Cookie[:16] -// sCookie := o.Cookie[16:] -// -// There is no guarantee that the Cookie string has a specific length. -type EDNS0_COOKIE struct { - Code uint16 // always EDNS0COOKIE - Cookie string // hex encoded cookie data -} - -func (e *EDNS0_COOKIE) pack() ([]byte, error) { - h, err := hex.DecodeString(e.Cookie) - if err != nil { - return nil, err - } - return h, nil -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_COOKIE) Option() uint16 { return EDNS0COOKIE } -func (e *EDNS0_COOKIE) unpack(b []byte) error { e.Cookie = hex.EncodeToString(b); return nil } -func (e *EDNS0_COOKIE) String() string { return e.Cookie } -func (e *EDNS0_COOKIE) copy() EDNS0 { return &EDNS0_COOKIE{e.Code, e.Cookie} } - -// The EDNS0_UL (Update Lease) (draft RFC) option is used to tell the server to set -// an expiration on an update RR. This is helpful for clients that cannot clean -// up after themselves. This is a draft RFC and more information can be found at -// https://tools.ietf.org/html/draft-sekar-dns-ul-02 -// -// o := new(dns.OPT) -// o.Hdr.Name = "." -// o.Hdr.Rrtype = dns.TypeOPT -// e := new(dns.EDNS0_UL) -// e.Code = dns.EDNS0UL -// e.Lease = 120 // in seconds -// o.Option = append(o.Option, e) -type EDNS0_UL struct { - Code uint16 // always EDNS0UL - Lease uint32 - KeyLease uint32 -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_UL) Option() uint16 { return EDNS0UL } -func (e *EDNS0_UL) String() string { return fmt.Sprintf("%d %d", e.Lease, e.KeyLease) } -func (e *EDNS0_UL) copy() EDNS0 { return &EDNS0_UL{e.Code, e.Lease, e.KeyLease} } - -// Copied: http://golang.org/src/pkg/net/dnsmsg.go -func (e *EDNS0_UL) pack() ([]byte, error) { - var b []byte - if e.KeyLease == 0 { - b = make([]byte, 4) - } else { - b = make([]byte, 8) - binary.BigEndian.PutUint32(b[4:], e.KeyLease) - } - binary.BigEndian.PutUint32(b, e.Lease) - return b, nil -} - -func (e *EDNS0_UL) unpack(b []byte) error { - switch len(b) { - case 4: - e.KeyLease = 0 - case 8: - e.KeyLease = binary.BigEndian.Uint32(b[4:]) - default: - return ErrBuf - } - e.Lease = binary.BigEndian.Uint32(b) - return nil -} - -// EDNS0_LLQ stands for Long Lived Queries: http://tools.ietf.org/html/draft-sekar-dns-llq-01 -// Implemented for completeness, as the EDNS0 type code is assigned. -type EDNS0_LLQ struct { - Code uint16 // always EDNS0LLQ - Version uint16 - Opcode uint16 - Error uint16 - Id uint64 - LeaseLife uint32 -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_LLQ) Option() uint16 { return EDNS0LLQ } - -func (e *EDNS0_LLQ) pack() ([]byte, error) { - b := make([]byte, 18) - binary.BigEndian.PutUint16(b[0:], e.Version) - binary.BigEndian.PutUint16(b[2:], e.Opcode) - binary.BigEndian.PutUint16(b[4:], e.Error) - binary.BigEndian.PutUint64(b[6:], e.Id) - binary.BigEndian.PutUint32(b[14:], e.LeaseLife) - return b, nil -} - -func (e *EDNS0_LLQ) unpack(b []byte) error { - if len(b) < 18 { - return ErrBuf - } - e.Version = binary.BigEndian.Uint16(b[0:]) - e.Opcode = binary.BigEndian.Uint16(b[2:]) - e.Error = binary.BigEndian.Uint16(b[4:]) - e.Id = binary.BigEndian.Uint64(b[6:]) - e.LeaseLife = binary.BigEndian.Uint32(b[14:]) - return nil -} - -func (e *EDNS0_LLQ) String() string { - s := strconv.FormatUint(uint64(e.Version), 10) + " " + strconv.FormatUint(uint64(e.Opcode), 10) + - " " + strconv.FormatUint(uint64(e.Error), 10) + " " + strconv.FormatUint(e.Id, 10) + - " " + strconv.FormatUint(uint64(e.LeaseLife), 10) - return s -} - -func (e *EDNS0_LLQ) copy() EDNS0 { - return &EDNS0_LLQ{e.Code, e.Version, e.Opcode, e.Error, e.Id, e.LeaseLife} -} - -// EDNS0_DAU implements the EDNS0 "DNSSEC Algorithm Understood" option. See RFC 6975. -type EDNS0_DAU struct { - Code uint16 // always EDNS0DAU - AlgCode []uint8 -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_DAU) Option() uint16 { return EDNS0DAU } -func (e *EDNS0_DAU) pack() ([]byte, error) { return cloneSlice(e.AlgCode), nil } -func (e *EDNS0_DAU) unpack(b []byte) error { e.AlgCode = cloneSlice(b); return nil } - -func (e *EDNS0_DAU) String() string { - s := "" - for _, alg := range e.AlgCode { - if a, ok := AlgorithmToString[alg]; ok { - s += " " + a - } else { - s += " " + strconv.Itoa(int(alg)) - } - } - return s -} -func (e *EDNS0_DAU) copy() EDNS0 { return &EDNS0_DAU{e.Code, e.AlgCode} } - -// EDNS0_DHU implements the EDNS0 "DS Hash Understood" option. See RFC 6975. -type EDNS0_DHU struct { - Code uint16 // always EDNS0DHU - AlgCode []uint8 -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_DHU) Option() uint16 { return EDNS0DHU } -func (e *EDNS0_DHU) pack() ([]byte, error) { return cloneSlice(e.AlgCode), nil } -func (e *EDNS0_DHU) unpack(b []byte) error { e.AlgCode = cloneSlice(b); return nil } - -func (e *EDNS0_DHU) String() string { - s := "" - for _, alg := range e.AlgCode { - if a, ok := HashToString[alg]; ok { - s += " " + a - } else { - s += " " + strconv.Itoa(int(alg)) - } - } - return s -} -func (e *EDNS0_DHU) copy() EDNS0 { return &EDNS0_DHU{e.Code, e.AlgCode} } - -// EDNS0_N3U implements the EDNS0 "NSEC3 Hash Understood" option. See RFC 6975. -type EDNS0_N3U struct { - Code uint16 // always EDNS0N3U - AlgCode []uint8 -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_N3U) Option() uint16 { return EDNS0N3U } -func (e *EDNS0_N3U) pack() ([]byte, error) { return cloneSlice(e.AlgCode), nil } -func (e *EDNS0_N3U) unpack(b []byte) error { e.AlgCode = cloneSlice(b); return nil } - -func (e *EDNS0_N3U) String() string { - // Re-use the hash map - s := "" - for _, alg := range e.AlgCode { - if a, ok := HashToString[alg]; ok { - s += " " + a - } else { - s += " " + strconv.Itoa(int(alg)) - } - } - return s -} -func (e *EDNS0_N3U) copy() EDNS0 { return &EDNS0_N3U{e.Code, e.AlgCode} } - -// EDNS0_EXPIRE implements the EDNS0 option as described in RFC 7314. -type EDNS0_EXPIRE struct { - Code uint16 // always EDNS0EXPIRE - Expire uint32 - Empty bool // Empty is used to signal an empty Expire option in a backwards compatible way, it's not used on the wire. -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_EXPIRE) Option() uint16 { return EDNS0EXPIRE } -func (e *EDNS0_EXPIRE) copy() EDNS0 { return &EDNS0_EXPIRE{e.Code, e.Expire, e.Empty} } - -func (e *EDNS0_EXPIRE) pack() ([]byte, error) { - if e.Empty { - return []byte{}, nil - } - b := make([]byte, 4) - binary.BigEndian.PutUint32(b, e.Expire) - return b, nil -} - -func (e *EDNS0_EXPIRE) unpack(b []byte) error { - if len(b) == 0 { - // zero-length EXPIRE query, see RFC 7314 Section 2 - e.Empty = true - return nil - } - if len(b) < 4 { - return ErrBuf - } - e.Expire = binary.BigEndian.Uint32(b) - e.Empty = false - return nil -} - -func (e *EDNS0_EXPIRE) String() (s string) { - if e.Empty { - return "" - } - return strconv.FormatUint(uint64(e.Expire), 10) -} - -// The EDNS0_LOCAL option is used for local/experimental purposes. The option -// code is recommended to be within the range [EDNS0LOCALSTART, EDNS0LOCALEND] -// (RFC6891), although any unassigned code can actually be used. The content of -// the option is made available in Data, unaltered. -// Basic use pattern for creating a local option: -// -// o := new(dns.OPT) -// o.Hdr.Name = "." -// o.Hdr.Rrtype = dns.TypeOPT -// e := new(dns.EDNS0_LOCAL) -// e.Code = dns.EDNS0LOCALSTART -// e.Data = []byte{72, 82, 74} -// o.Option = append(o.Option, e) -type EDNS0_LOCAL struct { - Code uint16 - Data []byte -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_LOCAL) Option() uint16 { return e.Code } - -func (e *EDNS0_LOCAL) String() string { - return strconv.FormatInt(int64(e.Code), 10) + ":0x" + hex.EncodeToString(e.Data) -} - -func (e *EDNS0_LOCAL) copy() EDNS0 { - return &EDNS0_LOCAL{e.Code, cloneSlice(e.Data)} -} - -func (e *EDNS0_LOCAL) pack() ([]byte, error) { - return cloneSlice(e.Data), nil -} - -func (e *EDNS0_LOCAL) unpack(b []byte) error { - e.Data = cloneSlice(b) - return nil -} - -// EDNS0_TCP_KEEPALIVE is an EDNS0 option that instructs the server to keep -// the TCP connection alive. See RFC 7828. -type EDNS0_TCP_KEEPALIVE struct { - Code uint16 // always EDNSTCPKEEPALIVE - - // Timeout is an idle timeout value for the TCP connection, specified in - // units of 100 milliseconds, encoded in network byte order. If set to 0, - // pack will return a nil slice. - Timeout uint16 - - // Length is the option's length. - // Deprecated: this field is deprecated and is always equal to 0. - Length uint16 -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_TCP_KEEPALIVE) Option() uint16 { return EDNS0TCPKEEPALIVE } - -func (e *EDNS0_TCP_KEEPALIVE) pack() ([]byte, error) { - if e.Timeout > 0 { - b := make([]byte, 2) - binary.BigEndian.PutUint16(b, e.Timeout) - return b, nil - } - return nil, nil -} - -func (e *EDNS0_TCP_KEEPALIVE) unpack(b []byte) error { - switch len(b) { - case 0: - case 2: - e.Timeout = binary.BigEndian.Uint16(b) - default: - return fmt.Errorf("length mismatch, want 0/2 but got %d", len(b)) - } - return nil -} - -func (e *EDNS0_TCP_KEEPALIVE) String() string { - s := "use tcp keep-alive" - if e.Timeout == 0 { - s += ", timeout omitted" - } else { - s += fmt.Sprintf(", timeout %dms", e.Timeout*100) - } - return s -} - -func (e *EDNS0_TCP_KEEPALIVE) copy() EDNS0 { return &EDNS0_TCP_KEEPALIVE{e.Code, e.Timeout, e.Length} } - -// EDNS0_PADDING option is used to add padding to a request/response. The default -// value of padding SHOULD be 0x0 but other values MAY be used, for instance if -// compression is applied before encryption which may break signatures. -type EDNS0_PADDING struct { - Padding []byte -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_PADDING) Option() uint16 { return EDNS0PADDING } -func (e *EDNS0_PADDING) pack() ([]byte, error) { return cloneSlice(e.Padding), nil } -func (e *EDNS0_PADDING) unpack(b []byte) error { e.Padding = cloneSlice(b); return nil } -func (e *EDNS0_PADDING) String() string { return fmt.Sprintf("%0X", e.Padding) } -func (e *EDNS0_PADDING) copy() EDNS0 { return &EDNS0_PADDING{cloneSlice(e.Padding)} } - -// Extended DNS Error Codes (RFC 8914). -const ( - ExtendedErrorCodeOther uint16 = iota - ExtendedErrorCodeUnsupportedDNSKEYAlgorithm - ExtendedErrorCodeUnsupportedDSDigestType - ExtendedErrorCodeStaleAnswer - ExtendedErrorCodeForgedAnswer - ExtendedErrorCodeDNSSECIndeterminate - ExtendedErrorCodeDNSBogus - ExtendedErrorCodeSignatureExpired - ExtendedErrorCodeSignatureNotYetValid - ExtendedErrorCodeDNSKEYMissing - ExtendedErrorCodeRRSIGsMissing - ExtendedErrorCodeNoZoneKeyBitSet - ExtendedErrorCodeNSECMissing - ExtendedErrorCodeCachedError - ExtendedErrorCodeNotReady - ExtendedErrorCodeBlocked - ExtendedErrorCodeCensored - ExtendedErrorCodeFiltered - ExtendedErrorCodeProhibited - ExtendedErrorCodeStaleNXDOMAINAnswer - ExtendedErrorCodeNotAuthoritative - ExtendedErrorCodeNotSupported - ExtendedErrorCodeNoReachableAuthority - ExtendedErrorCodeNetworkError - ExtendedErrorCodeInvalidData - ExtendedErrorCodeSignatureExpiredBeforeValid - ExtendedErrorCodeTooEarly - ExtendedErrorCodeUnsupportedNSEC3IterValue - ExtendedErrorCodeUnableToConformToPolicy - ExtendedErrorCodeSynthesized - ExtendedErrorCodeInvalidQueryType -) - -// ExtendedErrorCodeToString maps extended error info codes to a human readable -// description. -var ExtendedErrorCodeToString = map[uint16]string{ - ExtendedErrorCodeOther: "Other", - ExtendedErrorCodeUnsupportedDNSKEYAlgorithm: "Unsupported DNSKEY Algorithm", - ExtendedErrorCodeUnsupportedDSDigestType: "Unsupported DS Digest Type", - ExtendedErrorCodeStaleAnswer: "Stale Answer", - ExtendedErrorCodeForgedAnswer: "Forged Answer", - ExtendedErrorCodeDNSSECIndeterminate: "DNSSEC Indeterminate", - ExtendedErrorCodeDNSBogus: "DNSSEC Bogus", - ExtendedErrorCodeSignatureExpired: "Signature Expired", - ExtendedErrorCodeSignatureNotYetValid: "Signature Not Yet Valid", - ExtendedErrorCodeDNSKEYMissing: "DNSKEY Missing", - ExtendedErrorCodeRRSIGsMissing: "RRSIGs Missing", - ExtendedErrorCodeNoZoneKeyBitSet: "No Zone Key Bit Set", - ExtendedErrorCodeNSECMissing: "NSEC Missing", - ExtendedErrorCodeCachedError: "Cached Error", - ExtendedErrorCodeNotReady: "Not Ready", - ExtendedErrorCodeBlocked: "Blocked", - ExtendedErrorCodeCensored: "Censored", - ExtendedErrorCodeFiltered: "Filtered", - ExtendedErrorCodeProhibited: "Prohibited", - ExtendedErrorCodeStaleNXDOMAINAnswer: "Stale NXDOMAIN Answer", - ExtendedErrorCodeNotAuthoritative: "Not Authoritative", - ExtendedErrorCodeNotSupported: "Not Supported", - ExtendedErrorCodeNoReachableAuthority: "No Reachable Authority", - ExtendedErrorCodeNetworkError: "Network Error", - ExtendedErrorCodeInvalidData: "Invalid Data", - ExtendedErrorCodeSignatureExpiredBeforeValid: "Signature Expired Before Valid", - ExtendedErrorCodeTooEarly: "Too Early", - ExtendedErrorCodeUnsupportedNSEC3IterValue: "Unsupported NSEC3 Iterations Value", - ExtendedErrorCodeUnableToConformToPolicy: "Unable To Conform To Policy", - ExtendedErrorCodeSynthesized: "Synthesized", - ExtendedErrorCodeInvalidQueryType: "Invalid Query Type", -} - -// StringToExtendedErrorCode is a map from human readable descriptions to -// extended error info codes. -var StringToExtendedErrorCode = reverseInt16(ExtendedErrorCodeToString) - -// EDNS0_EDE option is used to return additional information about the cause of -// DNS errors. -type EDNS0_EDE struct { - InfoCode uint16 - ExtraText string -} - -// Option implements the EDNS0 interface. -func (e *EDNS0_EDE) Option() uint16 { return EDNS0EDE } -func (e *EDNS0_EDE) copy() EDNS0 { return &EDNS0_EDE{e.InfoCode, e.ExtraText} } - -func (e *EDNS0_EDE) String() string { - info := strconv.FormatUint(uint64(e.InfoCode), 10) - if s, ok := ExtendedErrorCodeToString[e.InfoCode]; ok { - info += fmt.Sprintf(" (%s)", s) - } - return fmt.Sprintf("%s: (%s)", info, e.ExtraText) -} - -func (e *EDNS0_EDE) pack() ([]byte, error) { - b := make([]byte, 2+len(e.ExtraText)) - binary.BigEndian.PutUint16(b[0:], e.InfoCode) - copy(b[2:], e.ExtraText) - return b, nil -} - -func (e *EDNS0_EDE) unpack(b []byte) error { - if len(b) < 2 { - return ErrBuf - } - e.InfoCode = binary.BigEndian.Uint16(b[0:]) - e.ExtraText = string(b[2:]) - return nil -} - -// The EDNS0_ESU option for ENUM Source-URI Extension. -type EDNS0_ESU struct { - Code uint16 // always EDNS0ESU - Uri string -} - -func (e *EDNS0_ESU) Option() uint16 { return EDNS0ESU } -func (e *EDNS0_ESU) String() string { return e.Uri } -func (e *EDNS0_ESU) copy() EDNS0 { return &EDNS0_ESU{e.Code, e.Uri} } -func (e *EDNS0_ESU) pack() ([]byte, error) { return []byte(e.Uri), nil } -func (e *EDNS0_ESU) unpack(b []byte) error { - e.Uri = string(b) - return nil -} - -// EDNS0_REPORTING implements the EDNS0 Reporting Channel option (RFC 9567). -type EDNS0_REPORTING struct { - Code uint16 // always EDNS0REPORTING - AgentDomain string -} - -func (e *EDNS0_REPORTING) Option() uint16 { return EDNS0REPORTING } -func (e *EDNS0_REPORTING) String() string { return e.AgentDomain } -func (e *EDNS0_REPORTING) copy() EDNS0 { return &EDNS0_REPORTING{e.Code, e.AgentDomain} } -func (e *EDNS0_REPORTING) pack() ([]byte, error) { - b := make([]byte, 255) - off1, err := PackDomainName(Fqdn(e.AgentDomain), b, 0, nil, false) - if err != nil { - return nil, fmt.Errorf("bad agent domain: %w", err) - } - return b[:off1], nil -} -func (e *EDNS0_REPORTING) unpack(b []byte) error { - domain, _, err := UnpackDomainName(b, 0) - if err != nil { - return fmt.Errorf("bad agent domain: %w", err) - } - e.AgentDomain = domain - return nil -} - -// EDNS0_ZONEVERSION implements the EDNS0 Zone Version option (RFC 9660). -type EDNS0_ZONEVERSION struct { - // always EDNS0ZONEVERSION (19) - Code uint16 - // An unsigned 1-octet Label Count indicating - // the number of labels for the name of the zone that VERSION value refers to. - LabelCount uint8 - // An unsigned 1-octet type number distinguishing the format and meaning of version. - // 0 SOA-SERIAL, 1-245 Unassigned, 246-255 Reserved for private use, see RFC 9660. - Type uint8 - // An opaque octet string conveying the zone version data (VERSION). - Version string -} - -func (e *EDNS0_ZONEVERSION) Option() uint16 { return EDNS0ZONEVERSION } -func (e *EDNS0_ZONEVERSION) String() string { return e.Version } -func (e *EDNS0_ZONEVERSION) copy() EDNS0 { - return &EDNS0_ZONEVERSION{e.Code, e.LabelCount, e.Type, e.Version} -} -func (e *EDNS0_ZONEVERSION) pack() ([]byte, error) { - b := []byte{ - // first octet label count - e.LabelCount, - // second octet is type - e.Type, - } - if len(e.Version) > 0 { - b = append(b, []byte(e.Version)...) - } - return b, nil -} -func (e *EDNS0_ZONEVERSION) unpack(b []byte) error { - if len(b) < 2 { - return ErrBuf - } - e.LabelCount = b[0] - e.Type = b[1] - if len(b) > 2 { - e.Version = string(b[2:]) - } else { - e.Version = "" - } - return nil -} diff --git a/vendor/github.com/miekg/dns/format.go b/vendor/github.com/miekg/dns/format.go deleted file mode 100644 index 0ec79f2fc1..0000000000 --- a/vendor/github.com/miekg/dns/format.go +++ /dev/null @@ -1,93 +0,0 @@ -package dns - -import ( - "net" - "reflect" - "strconv" -) - -// NumField returns the number of rdata fields r has. -func NumField(r RR) int { - return reflect.ValueOf(r).Elem().NumField() - 1 // Remove RR_Header -} - -// Field returns the rdata field i as a string. Fields are indexed starting from 1. -// RR types that holds slice data, for instance the NSEC type bitmap will return a single -// string where the types are concatenated using a space. -// Accessing non existing fields will cause a panic. -func Field(r RR, i int) string { - if i == 0 { - return "" - } - d := reflect.ValueOf(r).Elem().Field(i) - switch d.Kind() { - case reflect.String: - return d.String() - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return strconv.FormatInt(d.Int(), 10) - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: - return strconv.FormatUint(d.Uint(), 10) - case reflect.Slice: - switch reflect.ValueOf(r).Elem().Type().Field(i).Tag { - case `dns:"a"`: - // TODO(miek): Hmm store this as 16 bytes - if d.Len() < net.IPv4len { - return "" - } - if d.Len() < net.IPv6len { - return net.IPv4(byte(d.Index(0).Uint()), - byte(d.Index(1).Uint()), - byte(d.Index(2).Uint()), - byte(d.Index(3).Uint())).String() - } - return net.IPv4(byte(d.Index(12).Uint()), - byte(d.Index(13).Uint()), - byte(d.Index(14).Uint()), - byte(d.Index(15).Uint())).String() - case `dns:"aaaa"`: - if d.Len() < net.IPv6len { - return "" - } - return net.IP{ - byte(d.Index(0).Uint()), - byte(d.Index(1).Uint()), - byte(d.Index(2).Uint()), - byte(d.Index(3).Uint()), - byte(d.Index(4).Uint()), - byte(d.Index(5).Uint()), - byte(d.Index(6).Uint()), - byte(d.Index(7).Uint()), - byte(d.Index(8).Uint()), - byte(d.Index(9).Uint()), - byte(d.Index(10).Uint()), - byte(d.Index(11).Uint()), - byte(d.Index(12).Uint()), - byte(d.Index(13).Uint()), - byte(d.Index(14).Uint()), - byte(d.Index(15).Uint()), - }.String() - case `dns:"nsec"`: - if d.Len() == 0 { - return "" - } - s := Type(d.Index(0).Uint()).String() - for i := 1; i < d.Len(); i++ { - s += " " + Type(d.Index(i).Uint()).String() - } - return s - default: - // if it does not have a tag its a string slice - fallthrough - case `dns:"txt"`: - if d.Len() == 0 { - return "" - } - s := d.Index(0).String() - for i := 1; i < d.Len(); i++ { - s += " " + d.Index(i).String() - } - return s - } - } - return "" -} diff --git a/vendor/github.com/miekg/dns/fuzz.go b/vendor/github.com/miekg/dns/fuzz.go deleted file mode 100644 index 505ae43086..0000000000 --- a/vendor/github.com/miekg/dns/fuzz.go +++ /dev/null @@ -1,33 +0,0 @@ -//go:build fuzz -// +build fuzz - -package dns - -import "strings" - -func Fuzz(data []byte) int { - msg := new(Msg) - - if err := msg.Unpack(data); err != nil { - return 0 - } - if _, err := msg.Pack(); err != nil { - return 0 - } - - return 1 -} - -func FuzzNewRR(data []byte) int { - str := string(data) - // Do not fuzz lines that include the $INCLUDE keyword and hint the fuzzer - // at avoiding them. - // See GH#1025 for context. - if strings.Contains(strings.ToUpper(str), "$INCLUDE") { - return -1 - } - if _, err := NewRR(str); err != nil { - return 0 - } - return 1 -} diff --git a/vendor/github.com/miekg/dns/generate.go b/vendor/github.com/miekg/dns/generate.go deleted file mode 100644 index a81d2bc51f..0000000000 --- a/vendor/github.com/miekg/dns/generate.go +++ /dev/null @@ -1,248 +0,0 @@ -package dns - -import ( - "bytes" - "fmt" - "io" - "strconv" - "strings" -) - -// Parse the $GENERATE statement as used in BIND9 zones. -// See http://www.zytrax.com/books/dns/ch8/generate.html for instance. -// We are called after '$GENERATE '. After which we expect: -// * the range (12-24/2) -// * lhs (ownername) -// * [[ttl][class]] -// * type -// * rhs (rdata) -// But we are lazy here, only the range is parsed *all* occurrences -// of $ after that are interpreted. -func (zp *ZoneParser) generate(l lex) (RR, bool) { - token := l.token - step := int64(1) - if i := strings.IndexByte(token, '/'); i >= 0 { - if i+1 == len(token) { - return zp.setParseError("bad step in $GENERATE range", l) - } - - s, err := strconv.ParseInt(token[i+1:], 10, 64) - if err != nil || s <= 0 { - return zp.setParseError("bad step in $GENERATE range", l) - } - - step = s - token = token[:i] - } - - startStr, endStr, ok := strings.Cut(token, "-") - if !ok { - return zp.setParseError("bad start-stop in $GENERATE range", l) - } - - start, err := strconv.ParseInt(startStr, 10, 64) - if err != nil { - return zp.setParseError("bad start in $GENERATE range", l) - } - - end, err := strconv.ParseInt(endStr, 10, 64) - if err != nil { - return zp.setParseError("bad stop in $GENERATE range", l) - } - if end < 0 || start < 0 || end < start || (end-start)/step > 65535 { - return zp.setParseError("bad range in $GENERATE range", l) - } - - // _BLANK - l, ok = zp.c.Next() - if !ok || l.value != zBlank { - return zp.setParseError("garbage after $GENERATE range", l) - } - - // Create a complete new string, which we then parse again. - var s string - for l, ok := zp.c.Next(); ok; l, ok = zp.c.Next() { - if l.err { - return zp.setParseError("bad data in $GENERATE directive", l) - } - if l.value == zNewline { - break - } - - s += l.token - } - - r := &generateReader{ - s: s, - - cur: start, - start: start, - end: end, - step: step, - - file: zp.file, - lex: &l, - } - zp.sub = NewZoneParser(r, zp.origin, zp.file) - zp.sub.includeDepth, zp.sub.includeAllowed = zp.includeDepth, zp.includeAllowed - zp.sub.generateDisallowed = true - zp.sub.SetDefaultTTL(defaultTtl) - return zp.subNext() -} - -type generateReader struct { - s string - si int - - cur int64 - start int64 - end int64 - step int64 - - mod bytes.Buffer - - escape bool - - eof bool - - file string - lex *lex -} - -func (r *generateReader) parseError(msg string, end int) *ParseError { - r.eof = true // Make errors sticky. - - l := *r.lex - l.token = r.s[r.si-1 : end] - l.column += r.si // l.column starts one zBLANK before r.s - - return &ParseError{file: r.file, err: msg, lex: l} -} - -func (r *generateReader) Read(p []byte) (int, error) { - // NewZLexer, through NewZoneParser, should use ReadByte and - // not end up here. - - panic("not implemented") -} - -func (r *generateReader) ReadByte() (byte, error) { - if r.eof { - return 0, io.EOF - } - if r.mod.Len() > 0 { - return r.mod.ReadByte() - } - - if r.si >= len(r.s) { - r.si = 0 - r.cur += r.step - - r.eof = r.cur > r.end || r.cur < 0 - return '\n', nil - } - - si := r.si - r.si++ - - switch r.s[si] { - case '\\': - if r.escape { - r.escape = false - return '\\', nil - } - - r.escape = true - return r.ReadByte() - case '$': - if r.escape { - r.escape = false - return '$', nil - } - - mod := "%d" - - if si >= len(r.s)-1 { - // End of the string - fmt.Fprintf(&r.mod, mod, r.cur) - return r.mod.ReadByte() - } - - if r.s[si+1] == '$' { - r.si++ - return '$', nil - } - - var offset int64 - - // Search for { and } - if r.s[si+1] == '{' { - // Modifier block - sep := strings.Index(r.s[si+2:], "}") - if sep < 0 { - return 0, r.parseError("bad modifier in $GENERATE", len(r.s)) - } - - var errMsg string - mod, offset, errMsg = modToPrintf(r.s[si+2 : si+2+sep]) - if errMsg != "" { - return 0, r.parseError(errMsg, si+3+sep) - } - if r.start+offset < 0 || r.end+offset > 1<<31-1 { - return 0, r.parseError("bad offset in $GENERATE", si+3+sep) - } - - r.si += 2 + sep // Jump to it - } - - fmt.Fprintf(&r.mod, mod, r.cur+offset) - return r.mod.ReadByte() - default: - if r.escape { // Pretty useless here - r.escape = false - return r.ReadByte() - } - - return r.s[si], nil - } -} - -// Convert a $GENERATE modifier 0,0,d to something Printf can deal with. -func modToPrintf(s string) (string, int64, string) { - // Modifier is { offset [ ,width [ ,base ] ] } - provide default - // values for optional width and type, if necessary. - offStr, s, ok0 := strings.Cut(s, ",") - widthStr, s, ok1 := strings.Cut(s, ",") - base, _, ok2 := strings.Cut(s, ",") - if !ok0 { - widthStr = "0" - } - if !ok1 { - base = "d" - } - if ok2 { - return "", 0, "bad modifier in $GENERATE" - } - - switch base { - case "o", "d", "x", "X": - default: - return "", 0, "bad base in $GENERATE" - } - - offset, err := strconv.ParseInt(offStr, 10, 64) - if err != nil { - return "", 0, "bad offset in $GENERATE" - } - - width, err := strconv.ParseUint(widthStr, 10, 8) - if err != nil { - return "", 0, "bad width in $GENERATE" - } - - if width == 0 { - return "%" + base, offset, "" - } - - return "%0" + widthStr + base, offset, "" -} diff --git a/vendor/github.com/miekg/dns/hash.go b/vendor/github.com/miekg/dns/hash.go deleted file mode 100644 index 7d4183e027..0000000000 --- a/vendor/github.com/miekg/dns/hash.go +++ /dev/null @@ -1,31 +0,0 @@ -package dns - -import ( - "bytes" - "crypto" - "hash" -) - -// identityHash will not hash, it only buffers the data written into it and returns it as-is. -type identityHash struct { - b *bytes.Buffer -} - -// Implement the hash.Hash interface. - -func (i identityHash) Write(b []byte) (int, error) { return i.b.Write(b) } -func (i identityHash) Size() int { return i.b.Len() } -func (i identityHash) BlockSize() int { return 1024 } -func (i identityHash) Reset() { i.b.Reset() } -func (i identityHash) Sum(b []byte) []byte { return append(b, i.b.Bytes()...) } - -func hashFromAlgorithm(alg uint8) (hash.Hash, crypto.Hash, error) { - hashnumber, ok := AlgorithmToHash[alg] - if !ok { - return nil, 0, ErrAlg - } - if hashnumber == 0 { - return identityHash{b: &bytes.Buffer{}}, hashnumber, nil - } - return hashnumber.New(), hashnumber, nil -} diff --git a/vendor/github.com/miekg/dns/labels.go b/vendor/github.com/miekg/dns/labels.go deleted file mode 100644 index cd498d2e9e..0000000000 --- a/vendor/github.com/miekg/dns/labels.go +++ /dev/null @@ -1,212 +0,0 @@ -package dns - -// Holds a bunch of helper functions for dealing with labels. - -// SplitDomainName splits a name string into it's labels. -// www.miek.nl. returns []string{"www", "miek", "nl"} -// .www.miek.nl. returns []string{"", "www", "miek", "nl"}, -// The root label (.) returns nil. Note that using -// strings.Split(s) will work in most cases, but does not handle -// escaped dots (\.) for instance. -// s must be a syntactically valid domain name, see IsDomainName. -func SplitDomainName(s string) (labels []string) { - if s == "" { - return nil - } - fqdnEnd := 0 // offset of the final '.' or the length of the name - idx := Split(s) - begin := 0 - if IsFqdn(s) { - fqdnEnd = len(s) - 1 - } else { - fqdnEnd = len(s) - } - - switch len(idx) { - case 0: - return nil - case 1: - // no-op - default: - for _, end := range idx[1:] { - labels = append(labels, s[begin:end-1]) - begin = end - } - } - - return append(labels, s[begin:fqdnEnd]) -} - -// CompareDomainName compares the names s1 and s2 and -// returns how many labels they have in common starting from the *right*. -// The comparison stops at the first inequality. The names are downcased -// before the comparison. -// -// www.miek.nl. and miek.nl. have two labels in common: miek and nl -// www.miek.nl. and www.bla.nl. have one label in common: nl -// -// s1 and s2 must be syntactically valid domain names. -func CompareDomainName(s1, s2 string) (n int) { - // the first check: root label - if s1 == "." || s2 == "." { - return 0 - } - - l1 := Split(s1) - l2 := Split(s2) - - j1 := len(l1) - 1 // end - i1 := len(l1) - 2 // start - j2 := len(l2) - 1 - i2 := len(l2) - 2 - // the second check can be done here: last/only label - // before we fall through into the for-loop below - if equal(s1[l1[j1]:], s2[l2[j2]:]) { - n++ - } else { - return - } - for { - if i1 < 0 || i2 < 0 { - break - } - if equal(s1[l1[i1]:l1[j1]], s2[l2[i2]:l2[j2]]) { - n++ - } else { - break - } - j1-- - i1-- - j2-- - i2-- - } - return -} - -// CountLabel counts the number of labels in the string s. -// s must be a syntactically valid domain name. -func CountLabel(s string) (labels int) { - if s == "." { - return - } - off := 0 - end := false - for { - off, end = NextLabel(s, off) - labels++ - if end { - return - } - } -} - -// Split splits a name s into its label indexes. -// www.miek.nl. returns []int{0, 4, 9}, www.miek.nl also returns []int{0, 4, 9}. -// The root name (.) returns nil. Also see SplitDomainName. -// s must be a syntactically valid domain name. -func Split(s string) []int { - if s == "." { - return nil - } - idx := make([]int, 1, 3) - off := 0 - end := false - - for { - off, end = NextLabel(s, off) - if end { - return idx - } - idx = append(idx, off) - } -} - -// NextLabel returns the index of the start of the next label in the -// string s starting at offset. A negative offset will cause a panic. -// The bool end is true when the end of the string has been reached. -// Also see PrevLabel. -func NextLabel(s string, offset int) (i int, end bool) { - if s == "" { - return 0, true - } - for i = offset; i < len(s)-1; i++ { - if s[i] != '.' { - continue - } - j := i - 1 - for j >= 0 && s[j] == '\\' { - j-- - } - - if (j-i)%2 == 0 { - continue - } - - return i + 1, false - } - return i + 1, true -} - -// PrevLabel returns the index of the label when starting from the right and -// jumping n labels to the left. -// The bool start is true when the start of the string has been overshot. -// Also see NextLabel. -func PrevLabel(s string, n int) (i int, start bool) { - if s == "" { - return 0, true - } - if n == 0 { - return len(s), false - } - - l := len(s) - 1 - if s[l] == '.' { - l-- - } - - for ; l >= 0 && n > 0; l-- { - if s[l] != '.' { - continue - } - j := l - 1 - for j >= 0 && s[j] == '\\' { - j-- - } - - if (j-l)%2 == 0 { - continue - } - - n-- - if n == 0 { - return l + 1, false - } - } - - return 0, n > 1 -} - -// equal compares a and b while ignoring case. It returns true when equal otherwise false. -func equal(a, b string) bool { - // might be lifted into API function. - la := len(a) - lb := len(b) - if la != lb { - return false - } - - for i := la - 1; i >= 0; i-- { - ai := a[i] - bi := b[i] - if ai >= 'A' && ai <= 'Z' { - ai |= 'a' - 'A' - } - if bi >= 'A' && bi <= 'Z' { - bi |= 'a' - 'A' - } - if ai != bi { - return false - } - } - return true -} diff --git a/vendor/github.com/miekg/dns/listen_no_socket_options.go b/vendor/github.com/miekg/dns/listen_no_socket_options.go deleted file mode 100644 index 9e4010bdcc..0000000000 --- a/vendor/github.com/miekg/dns/listen_no_socket_options.go +++ /dev/null @@ -1,40 +0,0 @@ -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd -// +build !aix,!darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd - -package dns - -import ( - "fmt" - "net" -) - -const ( - supportsReusePort = false - supportsReuseAddr = false -) - -func listenTCP(network, addr string, reuseport, reuseaddr bool) (net.Listener, error) { - if reuseport || reuseaddr { - // TODO(tmthrgd): return an error? - } - - return net.Listen(network, addr) -} - -func listenUDP(network, addr string, reuseport, reuseaddr bool) (net.PacketConn, error) { - if reuseport || reuseaddr { - // TODO(tmthrgd): return an error? - } - - return net.ListenPacket(network, addr) -} - -// this is just for test compatibility -func checkReuseport(fd uintptr) (bool, error) { - return false, fmt.Errorf("not supported") -} - -// this is just for test compatibility -func checkReuseaddr(fd uintptr) (bool, error) { - return false, fmt.Errorf("not supported") -} diff --git a/vendor/github.com/miekg/dns/listen_socket_options.go b/vendor/github.com/miekg/dns/listen_socket_options.go deleted file mode 100644 index 35dfc9498a..0000000000 --- a/vendor/github.com/miekg/dns/listen_socket_options.go +++ /dev/null @@ -1,97 +0,0 @@ -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd -// +build aix darwin dragonfly freebsd linux netbsd openbsd - -package dns - -import ( - "context" - "net" - "syscall" - - "golang.org/x/sys/unix" -) - -const supportsReusePort = true - -func reuseportControl(network, address string, c syscall.RawConn) error { - var opErr error - err := c.Control(func(fd uintptr) { - opErr = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEPORT, 1) - }) - if err != nil { - return err - } - - return opErr -} - -const supportsReuseAddr = true - -func reuseaddrControl(network, address string, c syscall.RawConn) error { - var opErr error - err := c.Control(func(fd uintptr) { - opErr = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEADDR, 1) - }) - if err != nil { - return err - } - - return opErr -} - -func reuseaddrandportControl(network, address string, c syscall.RawConn) error { - err := reuseaddrControl(network, address, c) - if err != nil { - return err - } - - return reuseportControl(network, address, c) -} - -// this is just for test compatibility -func checkReuseport(fd uintptr) (bool, error) { - v, err := unix.GetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEPORT) - if err != nil { - return false, err - } - - return v == 1, nil -} - -// this is just for test compatibility -func checkReuseaddr(fd uintptr) (bool, error) { - v, err := unix.GetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEADDR) - if err != nil { - return false, err - } - - return v == 1, nil -} - -func listenTCP(network, addr string, reuseport, reuseaddr bool) (net.Listener, error) { - var lc net.ListenConfig - switch { - case reuseaddr && reuseport: - lc.Control = reuseaddrandportControl - case reuseport: - lc.Control = reuseportControl - case reuseaddr: - lc.Control = reuseaddrControl - } - - return lc.Listen(context.Background(), network, addr) -} - -func listenUDP(network, addr string, reuseport, reuseaddr bool) (net.PacketConn, error) { - var lc net.ListenConfig - switch { - case reuseaddr && reuseport: - lc.Control = reuseaddrandportControl - case reuseport: - lc.Control = reuseportControl - case reuseaddr: - lc.Control = reuseaddrControl - } - - return lc.ListenPacket(context.Background(), network, addr) -} diff --git a/vendor/github.com/miekg/dns/msg.go b/vendor/github.com/miekg/dns/msg.go deleted file mode 100644 index 382a808387..0000000000 --- a/vendor/github.com/miekg/dns/msg.go +++ /dev/null @@ -1,1225 +0,0 @@ -// DNS packet assembly, see RFC 1035. Converting from - Unpack() - -// and to - Pack() - wire format. -// All the packers and unpackers take a (msg []byte, off int) -// and return (off1 int, ok bool). If they return ok==false, they -// also return off1==len(msg), so that the next unpacker will -// also fail. This lets us avoid checks of ok until the end of a -// packing sequence. - -package dns - -//go:generate go run msg_generate.go - -import ( - "crypto/rand" - "encoding/binary" - "fmt" - "math/big" - "strconv" - "strings" -) - -const ( - maxCompressionOffset = 2 << 13 // We have 14 bits for the compression pointer - maxDomainNameWireOctets = 255 // See RFC 1035 section 2.3.4 - - // This is the maximum number of compression pointers that should occur in a - // semantically valid message. Each label in a domain name must be at least one - // octet and is separated by a period. The root label won't be represented by a - // compression pointer to a compression pointer, hence the -2 to exclude the - // smallest valid root label. - // - // It is possible to construct a valid message that has more compression pointers - // than this, and still doesn't loop, by pointing to a previous pointer. This is - // not something a well written implementation should ever do, so we leave them - // to trip the maximum compression pointer check. - maxCompressionPointers = (maxDomainNameWireOctets+1)/2 - 2 - - // This is the maximum length of a domain name in presentation format. The - // maximum wire length of a domain name is 255 octets (see above), with the - // maximum label length being 63. The wire format requires one extra byte over - // the presentation format, reducing the number of octets by 1. Each label in - // the name will be separated by a single period, with each octet in the label - // expanding to at most 4 bytes (\DDD). If all other labels are of the maximum - // length, then the final label can only be 61 octets long to not exceed the - // maximum allowed wire length. - maxDomainNamePresentationLength = 61*4 + 1 + 63*4 + 1 + 63*4 + 1 + 63*4 + 1 -) - -// Errors defined in this package. -var ( - ErrAlg error = &Error{err: "bad algorithm"} // ErrAlg indicates an error with the (DNSSEC) algorithm. - ErrAuth error = &Error{err: "bad authentication"} // ErrAuth indicates an error in the TSIG authentication. - ErrBuf error = &Error{err: "buffer size too small"} // ErrBuf indicates that the buffer used is too small for the message. - ErrConnEmpty error = &Error{err: "conn has no connection"} // ErrConnEmpty indicates a connection is being used before it is initialized. - ErrExtendedRcode error = &Error{err: "bad extended rcode"} // ErrExtendedRcode ... - ErrFqdn error = &Error{err: "domain must be fully qualified"} // ErrFqdn indicates that a domain name does not have a closing dot. - ErrId error = &Error{err: "id mismatch"} // ErrId indicates there is a mismatch with the message's ID. - ErrKeyAlg error = &Error{err: "bad key algorithm"} // ErrKeyAlg indicates that the algorithm in the key is not valid. - ErrKey error = &Error{err: "bad key"} - ErrKeySize error = &Error{err: "bad key size"} - ErrLongDomain error = &Error{err: fmt.Sprintf("domain name exceeded %d wire-format octets", maxDomainNameWireOctets)} - ErrNoSig error = &Error{err: "no signature found"} - ErrPrivKey error = &Error{err: "bad private key"} - ErrRcode error = &Error{err: "bad rcode"} - ErrRdata error = &Error{err: "bad rdata"} - ErrRRset error = &Error{err: "bad rrset"} - ErrSecret error = &Error{err: "no secrets defined"} - ErrShortRead error = &Error{err: "short read"} - ErrSig error = &Error{err: "bad signature"} // ErrSig indicates that a signature can not be cryptographically validated. - ErrSoa error = &Error{err: "no SOA"} // ErrSOA indicates that no SOA RR was seen when doing zone transfers. - ErrTime error = &Error{err: "bad time"} // ErrTime indicates a timing error in TSIG authentication. -) - -// Id by default returns a 16-bit random number to be used as a message id. The -// number is drawn from a cryptographically secure random number generator. -// This being a variable the function can be reassigned to a custom function. -// For instance, to make it return a static value for testing: -// -// dns.Id = func() uint16 { return 3 } -var Id = id - -// id returns a 16 bits random number to be used as a -// message id. The random provided should be good enough. -func id() uint16 { - var output uint16 - err := binary.Read(rand.Reader, binary.BigEndian, &output) - if err != nil { - panic("dns: reading random id failed: " + err.Error()) - } - return output -} - -// MsgHdr is a a manually-unpacked version of (id, bits). -type MsgHdr struct { - Id uint16 - Response bool - Opcode int - Authoritative bool - Truncated bool - RecursionDesired bool - RecursionAvailable bool - Zero bool - AuthenticatedData bool - CheckingDisabled bool - Rcode int -} - -// Msg contains the layout of a DNS message. -type Msg struct { - MsgHdr - Compress bool `json:"-"` // If true, the message will be compressed when converted to wire format. - Question []Question // Holds the RR(s) of the question section. - Answer []RR // Holds the RR(s) of the answer section. - Ns []RR // Holds the RR(s) of the authority section. - Extra []RR // Holds the RR(s) of the additional section. -} - -// ClassToString is a maps Classes to strings for each CLASS wire type. -var ClassToString = map[uint16]string{ - ClassINET: "IN", - ClassCSNET: "CS", - ClassCHAOS: "CH", - ClassHESIOD: "HS", - ClassNONE: "NONE", - ClassANY: "ANY", -} - -// OpcodeToString maps Opcodes to strings. -var OpcodeToString = map[int]string{ - OpcodeQuery: "QUERY", - OpcodeIQuery: "IQUERY", - OpcodeStatus: "STATUS", - OpcodeNotify: "NOTIFY", - OpcodeUpdate: "UPDATE", -} - -// RcodeToString maps Rcodes to strings. -var RcodeToString = map[int]string{ - RcodeSuccess: "NOERROR", - RcodeFormatError: "FORMERR", - RcodeServerFailure: "SERVFAIL", - RcodeNameError: "NXDOMAIN", - RcodeNotImplemented: "NOTIMP", - RcodeRefused: "REFUSED", - RcodeYXDomain: "YXDOMAIN", // See RFC 2136 - RcodeYXRrset: "YXRRSET", - RcodeNXRrset: "NXRRSET", - RcodeNotAuth: "NOTAUTH", - RcodeNotZone: "NOTZONE", - RcodeStatefulTypeNotImplemented: "DSOTYPENI", - RcodeBadSig: "BADSIG", // Also known as RcodeBadVers, see RFC 6891 - // RcodeBadVers: "BADVERS", - RcodeBadKey: "BADKEY", - RcodeBadTime: "BADTIME", - RcodeBadMode: "BADMODE", - RcodeBadName: "BADNAME", - RcodeBadAlg: "BADALG", - RcodeBadTrunc: "BADTRUNC", - RcodeBadCookie: "BADCOOKIE", -} - -// compressionMap is used to allow a more efficient compression map -// to be used for internal packDomainName calls without changing the -// signature or functionality of public API. -// -// In particular, map[string]uint16 uses 25% less per-entry memory -// than does map[string]int. -type compressionMap struct { - ext map[string]int // external callers - int map[string]uint16 // internal callers -} - -func (m compressionMap) valid() bool { - return m.int != nil || m.ext != nil -} - -func (m compressionMap) insert(s string, pos int) { - if m.ext != nil { - m.ext[s] = pos - } else { - m.int[s] = uint16(pos) - } -} - -func (m compressionMap) find(s string) (int, bool) { - if m.ext != nil { - pos, ok := m.ext[s] - return pos, ok - } - - pos, ok := m.int[s] - return int(pos), ok -} - -// Domain names are a sequence of counted strings -// split at the dots. They end with a zero-length string. - -// PackDomainName packs a domain name s into msg[off:]. -// If compression is wanted compress must be true and the compression -// map needs to hold a mapping between domain names and offsets -// pointing into msg. -func PackDomainName(s string, msg []byte, off int, compression map[string]int, compress bool) (off1 int, err error) { - return packDomainName(s, msg, off, compressionMap{ext: compression}, compress) -} - -func packDomainName(s string, msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - // XXX: A logical copy of this function exists in IsDomainName and - // should be kept in sync with this function. - - ls := len(s) - if ls == 0 { // Ok, for instance when dealing with update RR without any rdata. - return off, nil - } - - // If not fully qualified, error out. - if !IsFqdn(s) { - return len(msg), ErrFqdn - } - - // Each dot ends a segment of the name. - // We trade each dot byte for a length byte. - // Except for escaped dots (\.), which are normal dots. - // There is also a trailing zero. - - // Compression - pointer := -1 - - // Emit sequence of counted strings, chopping at dots. - var ( - begin int - compBegin int - compOff int - bs []byte - wasDot bool - ) -loop: - for i := 0; i < ls; i++ { - var c byte - if bs == nil { - c = s[i] - } else { - c = bs[i] - } - - switch c { - case '\\': - if off+1 > len(msg) { - return len(msg), ErrBuf - } - - if bs == nil { - bs = []byte(s) - } - - // check for \DDD - if isDDD(bs[i+1:]) { - bs[i] = dddToByte(bs[i+1:]) - copy(bs[i+1:ls-3], bs[i+4:]) - ls -= 3 - compOff += 3 - } else { - copy(bs[i:ls-1], bs[i+1:]) - ls-- - compOff++ - } - - wasDot = false - case '.': - if i == 0 && len(s) > 1 { - // leading dots are not legal except for the root zone - return len(msg), ErrRdata - } - - if wasDot { - // two dots back to back is not legal - return len(msg), ErrRdata - } - wasDot = true - - labelLen := i - begin - if labelLen >= 1<<6 { // top two bits of length must be clear - return len(msg), ErrRdata - } - - // off can already (we're in a loop) be bigger than len(msg) - // this happens when a name isn't fully qualified - if off+1+labelLen > len(msg) { - return len(msg), ErrBuf - } - - // Don't try to compress '.' - // We should only compress when compress is true, but we should also still pick - // up names that can be used for *future* compression(s). - if compression.valid() && !isRootLabel(s, bs, begin, ls) { - if p, ok := compression.find(s[compBegin:]); ok { - // The first hit is the longest matching dname - // keep the pointer offset we get back and store - // the offset of the current name, because that's - // where we need to insert the pointer later - - // If compress is true, we're allowed to compress this dname - if compress { - pointer = p // Where to point to - break loop - } - } else if off < maxCompressionOffset { - // Only offsets smaller than maxCompressionOffset can be used. - compression.insert(s[compBegin:], off) - } - } - - // The following is covered by the length check above. - msg[off] = byte(labelLen) - - if bs == nil { - copy(msg[off+1:], s[begin:i]) - } else { - copy(msg[off+1:], bs[begin:i]) - } - off += 1 + labelLen - - begin = i + 1 - compBegin = begin + compOff - default: - wasDot = false - } - } - - // Root label is special - if isRootLabel(s, bs, 0, ls) { - return off, nil - } - - // If we did compression and we find something add the pointer here - if pointer != -1 { - // We have two bytes (14 bits) to put the pointer in - binary.BigEndian.PutUint16(msg[off:], uint16(pointer^0xC000)) - return off + 2, nil - } - - // Trailing root label - if off < len(msg) { - msg[off] = 0 - return off + 1, nil - } - - return off, ErrBuf -} - -// isRootLabel returns whether s or bs, from off to end, is the root -// label ".". -// -// If bs is nil, s will be checked, otherwise bs will be checked. -func isRootLabel(s string, bs []byte, off, end int) bool { - if bs == nil { - return s[off:end] == "." - } - - return end-off == 1 && bs[off] == '.' -} - -// Unpack a domain name. -// In addition to the simple sequences of counted strings above, -// domain names are allowed to refer to strings elsewhere in the -// packet, to avoid repeating common suffixes when returning -// many entries in a single domain. The pointers are marked -// by a length byte with the top two bits set. Ignoring those -// two bits, that byte and the next give a 14 bit offset from msg[0] -// where we should pick up the trail. -// Note that if we jump elsewhere in the packet, -// we return off1 == the offset after the first pointer we found, -// which is where the next record will start. -// In theory, the pointers are only allowed to jump backward. -// We let them jump anywhere and stop jumping after a while. - -// UnpackDomainName unpacks a domain name into a string. It returns -// the name, the new offset into msg and any error that occurred. -// -// When an error is encountered, the unpacked name will be discarded -// and len(msg) will be returned as the offset. -func UnpackDomainName(msg []byte, off int) (string, int, error) { - s := make([]byte, 0, maxDomainNamePresentationLength) - off1 := 0 - lenmsg := len(msg) - budget := maxDomainNameWireOctets - ptr := 0 // number of pointers followed -Loop: - for { - if off >= lenmsg { - return "", lenmsg, ErrBuf - } - c := int(msg[off]) - off++ - switch c & 0xC0 { - case 0x00: - if c == 0x00 { - // end of name - break Loop - } - // literal string - if off+c > lenmsg { - return "", lenmsg, ErrBuf - } - budget -= c + 1 // +1 for the label separator - if budget <= 0 { - return "", lenmsg, ErrLongDomain - } - for _, b := range msg[off : off+c] { - if isDomainNameLabelSpecial(b) { - s = append(s, '\\', b) - } else if b < ' ' || b > '~' { - s = append(s, escapeByte(b)...) - } else { - s = append(s, b) - } - } - s = append(s, '.') - off += c - case 0xC0: - // pointer to somewhere else in msg. - // remember location after first ptr, - // since that's how many bytes we consumed. - // also, don't follow too many pointers -- - // maybe there's a loop. - if off >= lenmsg { - return "", lenmsg, ErrBuf - } - c1 := msg[off] - off++ - if ptr == 0 { - off1 = off - } - if ptr++; ptr > maxCompressionPointers { - return "", lenmsg, &Error{err: "too many compression pointers"} - } - // pointer should guarantee that it advances and points forwards at least - // but the condition on previous three lines guarantees that it's - // at least loop-free - off = (c^0xC0)<<8 | int(c1) - default: - // 0x80 and 0x40 are reserved - return "", lenmsg, ErrRdata - } - } - if ptr == 0 { - off1 = off - } - if len(s) == 0 { - return ".", off1, nil - } - return string(s), off1, nil -} - -func packTxt(txt []string, msg []byte, offset int) (int, error) { - if len(txt) == 0 { - if offset >= len(msg) { - return offset, ErrBuf - } - msg[offset] = 0 - return offset, nil - } - var err error - for _, s := range txt { - offset, err = packTxtString(s, msg, offset) - if err != nil { - return offset, err - } - } - return offset, nil -} - -func packTxtString(s string, msg []byte, offset int) (int, error) { - lenByteOffset := offset - if offset >= len(msg) || len(s) > 256*4+1 /* If all \DDD */ { - return offset, ErrBuf - } - offset++ - for i := 0; i < len(s); i++ { - if len(msg) <= offset { - return offset, ErrBuf - } - if s[i] == '\\' { - i++ - if i == len(s) { - break - } - // check for \DDD - if isDDD(s[i:]) { - msg[offset] = dddToByte(s[i:]) - i += 2 - } else { - msg[offset] = s[i] - } - } else { - msg[offset] = s[i] - } - offset++ - } - l := offset - lenByteOffset - 1 - if l > 255 { - return offset, &Error{err: "string exceeded 255 bytes in txt"} - } - msg[lenByteOffset] = byte(l) - return offset, nil -} - -func packOctetString(s string, msg []byte, offset int) (int, error) { - if offset >= len(msg) || len(s) > 256*4+1 { - return offset, ErrBuf - } - for i := 0; i < len(s); i++ { - if len(msg) <= offset { - return offset, ErrBuf - } - if s[i] == '\\' { - i++ - if i == len(s) { - break - } - // check for \DDD - if isDDD(s[i:]) { - msg[offset] = dddToByte(s[i:]) - i += 2 - } else { - msg[offset] = s[i] - } - } else { - msg[offset] = s[i] - } - offset++ - } - return offset, nil -} - -func unpackTxt(msg []byte, off0 int) (ss []string, off int, err error) { - off = off0 - var s string - for off < len(msg) && err == nil { - s, off, err = unpackString(msg, off) - if err == nil { - ss = append(ss, s) - } - } - return -} - -// Helpers for dealing with escaped bytes -func isDigit(b byte) bool { return b >= '0' && b <= '9' } - -func isDDD[T ~[]byte | ~string](s T) bool { - return len(s) >= 3 && isDigit(s[0]) && isDigit(s[1]) && isDigit(s[2]) -} - -func dddToByte[T ~[]byte | ~string](s T) byte { - _ = s[2] // bounds check hint to compiler; see golang.org/issue/14808 - return byte((s[0]-'0')*100 + (s[1]-'0')*10 + (s[2] - '0')) -} - -// Helper function for packing and unpacking -func intToBytes(i *big.Int, length int) []byte { - buf := i.Bytes() - if len(buf) < length { - b := make([]byte, length) - copy(b[length-len(buf):], buf) - return b - } - return buf -} - -// PackRR packs a resource record rr into msg[off:]. -// See PackDomainName for documentation about the compression. -func PackRR(rr RR, msg []byte, off int, compression map[string]int, compress bool) (off1 int, err error) { - headerEnd, off1, err := packRR(rr, msg, off, compressionMap{ext: compression}, compress) - if err == nil { - // packRR no longer sets the Rdlength field on the rr, but - // callers might be expecting it so we set it here. - rr.Header().Rdlength = uint16(off1 - headerEnd) - } - return off1, err -} - -func packRR(rr RR, msg []byte, off int, compression compressionMap, compress bool) (headerEnd int, off1 int, err error) { - if rr == nil { - return len(msg), len(msg), &Error{err: "nil rr"} - } - - headerEnd, err = rr.Header().packHeader(msg, off, compression, compress) - if err != nil { - return headerEnd, len(msg), err - } - - off1, err = rr.pack(msg, headerEnd, compression, compress) - if err != nil { - return headerEnd, len(msg), err - } - - rdlength := off1 - headerEnd - if int(uint16(rdlength)) != rdlength { // overflow - return headerEnd, len(msg), ErrRdata - } - - // The RDLENGTH field is the last field in the header and we set it here. - binary.BigEndian.PutUint16(msg[headerEnd-2:], uint16(rdlength)) - return headerEnd, off1, nil -} - -// UnpackRR unpacks msg[off:] into an RR. -func UnpackRR(msg []byte, off int) (rr RR, off1 int, err error) { - h, off, msg, err := unpackHeader(msg, off) - if err != nil { - return nil, len(msg), err - } - - return UnpackRRWithHeader(h, msg, off) -} - -// UnpackRRWithHeader unpacks the record type specific payload given an existing -// RR_Header. -func UnpackRRWithHeader(h RR_Header, msg []byte, off int) (rr RR, off1 int, err error) { - if newFn, ok := TypeToRR[h.Rrtype]; ok { - rr = newFn() - *rr.Header() = h - } else { - rr = &RFC3597{Hdr: h} - } - - if off < 0 || off > len(msg) { - return &h, off, &Error{err: "bad off"} - } - - end := off + int(h.Rdlength) - if end < off || end > len(msg) { - return &h, end, &Error{err: "bad rdlength"} - } - - if noRdata(h) { - return rr, off, nil - } - - off, err = rr.unpack(msg, off) - if err != nil { - return nil, end, err - } - if off != end { - return &h, end, &Error{err: "bad rdlength"} - } - - return rr, off, nil -} - -// unpackRRslice unpacks msg[off:] into an []RR. -// If we cannot unpack the whole array, then it will return nil -func unpackRRslice(l int, msg []byte, off int) (dst1 []RR, off1 int, err error) { - var r RR - // Don't pre-allocate, l may be under attacker control - var dst []RR - for i := 0; i < l; i++ { - off1 := off - r, off, err = UnpackRR(msg, off) - if err != nil { - off = len(msg) - break - } - // If offset does not increase anymore, l is a lie - if off1 == off { - break - } - dst = append(dst, r) - } - if err != nil && off == len(msg) { - dst = nil - } - return dst, off, err -} - -// Convert a MsgHdr to a string, with dig-like headers: -// -// ;; opcode: QUERY, status: NOERROR, id: 48404 -// -// ;; flags: qr aa rd ra; -func (h *MsgHdr) String() string { - if h == nil { - return " MsgHdr" - } - - s := ";; opcode: " + OpcodeToString[h.Opcode] - s += ", status: " + RcodeToString[h.Rcode] - s += ", id: " + strconv.Itoa(int(h.Id)) + "\n" - - s += ";; flags:" - if h.Response { - s += " qr" - } - if h.Authoritative { - s += " aa" - } - if h.Truncated { - s += " tc" - } - if h.RecursionDesired { - s += " rd" - } - if h.RecursionAvailable { - s += " ra" - } - if h.Zero { // Hmm - s += " z" - } - if h.AuthenticatedData { - s += " ad" - } - if h.CheckingDisabled { - s += " cd" - } - - s += ";" - return s -} - -// Pack packs a Msg: it is converted to wire format. -// If the dns.Compress is true the message will be in compressed wire format. -func (dns *Msg) Pack() (msg []byte, err error) { - return dns.PackBuffer(nil) -} - -// PackBuffer packs a Msg, using the given buffer buf. If buf is too small a new buffer is allocated. -func (dns *Msg) PackBuffer(buf []byte) (msg []byte, err error) { - // If this message can't be compressed, avoid filling the - // compression map and creating garbage. - if dns.Compress && dns.isCompressible() { - compression := make(map[string]uint16) // Compression pointer mappings. - return dns.packBufferWithCompressionMap(buf, compressionMap{int: compression}, true) - } - - return dns.packBufferWithCompressionMap(buf, compressionMap{}, false) -} - -// packBufferWithCompressionMap packs a Msg, using the given buffer buf. -func (dns *Msg) packBufferWithCompressionMap(buf []byte, compression compressionMap, compress bool) (msg []byte, err error) { - if dns.Rcode < 0 || dns.Rcode > 0xFFF { - return nil, ErrRcode - } - - // Set extended rcode unconditionally if we have an opt, this will allow - // resetting the extended rcode bits if they need to. - if opt := dns.IsEdns0(); opt != nil { - opt.SetExtendedRcode(uint16(dns.Rcode)) - } else if dns.Rcode > 0xF { - // If Rcode is an extended one and opt is nil, error out. - return nil, ErrExtendedRcode - } - - // Convert convenient Msg into wire-like Header. - var dh Header - dh.Id = dns.Id - dh.Bits = uint16(dns.Opcode)<<11 | uint16(dns.Rcode&0xF) - if dns.Response { - dh.Bits |= _QR - } - if dns.Authoritative { - dh.Bits |= _AA - } - if dns.Truncated { - dh.Bits |= _TC - } - if dns.RecursionDesired { - dh.Bits |= _RD - } - if dns.RecursionAvailable { - dh.Bits |= _RA - } - if dns.Zero { - dh.Bits |= _Z - } - if dns.AuthenticatedData { - dh.Bits |= _AD - } - if dns.CheckingDisabled { - dh.Bits |= _CD - } - - dh.Qdcount = uint16(len(dns.Question)) - dh.Ancount = uint16(len(dns.Answer)) - dh.Nscount = uint16(len(dns.Ns)) - dh.Arcount = uint16(len(dns.Extra)) - - // We need the uncompressed length here, because we first pack it and then compress it. - msg = buf - uncompressedLen := msgLenWithCompressionMap(dns, nil) - if packLen := uncompressedLen + 1; len(msg) < packLen { - msg = make([]byte, packLen) - } - - // Pack it in: header and then the pieces. - off := 0 - off, err = dh.pack(msg, off, compression, compress) - if err != nil { - return nil, err - } - for _, r := range dns.Question { - off, err = r.pack(msg, off, compression, compress) - if err != nil { - return nil, err - } - } - for _, r := range dns.Answer { - _, off, err = packRR(r, msg, off, compression, compress) - if err != nil { - return nil, err - } - } - for _, r := range dns.Ns { - _, off, err = packRR(r, msg, off, compression, compress) - if err != nil { - return nil, err - } - } - for _, r := range dns.Extra { - _, off, err = packRR(r, msg, off, compression, compress) - if err != nil { - return nil, err - } - } - return msg[:off], nil -} - -func (dns *Msg) unpack(dh Header, msg []byte, off int) (err error) { - // If we are at the end of the message we should return *just* the - // header. This can still be useful to the caller. 9.9.9.9 sends these - // when responding with REFUSED for instance. - if off == len(msg) { - // reset sections before returning - dns.Question, dns.Answer, dns.Ns, dns.Extra = nil, nil, nil, nil - return nil - } - - // Qdcount, Ancount, Nscount, Arcount can't be trusted, as they are - // attacker controlled. This means we can't use them to pre-allocate - // slices. - dns.Question = nil - for i := 0; i < int(dh.Qdcount); i++ { - off1 := off - var q Question - q, off, err = unpackQuestion(msg, off) - if err != nil { - return err - } - if off1 == off { // Offset does not increase anymore, dh.Qdcount is a lie! - dh.Qdcount = uint16(i) - break - } - dns.Question = append(dns.Question, q) - } - - dns.Answer, off, err = unpackRRslice(int(dh.Ancount), msg, off) - // The header counts might have been wrong so we need to update it - dh.Ancount = uint16(len(dns.Answer)) - if err == nil { - dns.Ns, off, err = unpackRRslice(int(dh.Nscount), msg, off) - } - // The header counts might have been wrong so we need to update it - dh.Nscount = uint16(len(dns.Ns)) - if err == nil { - dns.Extra, _, err = unpackRRslice(int(dh.Arcount), msg, off) - } - // The header counts might have been wrong so we need to update it - dh.Arcount = uint16(len(dns.Extra)) - - // Set extended Rcode - if opt := dns.IsEdns0(); opt != nil { - dns.Rcode |= opt.ExtendedRcode() - } - - // TODO(miek) make this an error? - // use PackOpt to let people tell how detailed the error reporting should be? - // if off != len(msg) { - // // println("dns: extra bytes in dns packet", off, "<", len(msg)) - // } - return err -} - -// Unpack unpacks a binary message to a Msg structure. -func (dns *Msg) Unpack(msg []byte) (err error) { - dh, off, err := unpackMsgHdr(msg, 0) - if err != nil { - return err - } - - dns.setHdr(dh) - return dns.unpack(dh, msg, off) -} - -// Convert a complete message to a string with dig-like output. -func (dns *Msg) String() string { - if dns == nil { - return " MsgHdr" - } - s := dns.MsgHdr.String() + " " - if dns.MsgHdr.Opcode == OpcodeUpdate { - s += "ZONE: " + strconv.Itoa(len(dns.Question)) + ", " - s += "PREREQ: " + strconv.Itoa(len(dns.Answer)) + ", " - s += "UPDATE: " + strconv.Itoa(len(dns.Ns)) + ", " - s += "ADDITIONAL: " + strconv.Itoa(len(dns.Extra)) + "\n" - } else { - s += "QUERY: " + strconv.Itoa(len(dns.Question)) + ", " - s += "ANSWER: " + strconv.Itoa(len(dns.Answer)) + ", " - s += "AUTHORITY: " + strconv.Itoa(len(dns.Ns)) + ", " - s += "ADDITIONAL: " + strconv.Itoa(len(dns.Extra)) + "\n" - } - opt := dns.IsEdns0() - if opt != nil { - // OPT PSEUDOSECTION - s += opt.String() + "\n" - } - if len(dns.Question) > 0 { - if dns.MsgHdr.Opcode == OpcodeUpdate { - s += "\n;; ZONE SECTION:\n" - } else { - s += "\n;; QUESTION SECTION:\n" - } - for _, r := range dns.Question { - s += r.String() + "\n" - } - } - if len(dns.Answer) > 0 { - if dns.MsgHdr.Opcode == OpcodeUpdate { - s += "\n;; PREREQUISITE SECTION:\n" - } else { - s += "\n;; ANSWER SECTION:\n" - } - for _, r := range dns.Answer { - if r != nil { - s += r.String() + "\n" - } - } - } - if len(dns.Ns) > 0 { - if dns.MsgHdr.Opcode == OpcodeUpdate { - s += "\n;; UPDATE SECTION:\n" - } else { - s += "\n;; AUTHORITY SECTION:\n" - } - for _, r := range dns.Ns { - if r != nil { - s += r.String() + "\n" - } - } - } - if len(dns.Extra) > 0 && (opt == nil || len(dns.Extra) > 1) { - s += "\n;; ADDITIONAL SECTION:\n" - for _, r := range dns.Extra { - if r != nil && r.Header().Rrtype != TypeOPT { - s += r.String() + "\n" - } - } - } - return s -} - -// isCompressible returns whether the msg may be compressible. -func (dns *Msg) isCompressible() bool { - // If we only have one question, there is nothing we can ever compress. - return len(dns.Question) > 1 || len(dns.Answer) > 0 || - len(dns.Ns) > 0 || len(dns.Extra) > 0 -} - -// Len returns the message length when in (un)compressed wire format. -// If dns.Compress is true compression it is taken into account. Len() -// is provided to be a faster way to get the size of the resulting packet, -// than packing it, measuring the size and discarding the buffer. -func (dns *Msg) Len() int { - // If this message can't be compressed, avoid filling the - // compression map and creating garbage. - if dns.Compress && dns.isCompressible() { - compression := make(map[string]struct{}) - return msgLenWithCompressionMap(dns, compression) - } - - return msgLenWithCompressionMap(dns, nil) -} - -func msgLenWithCompressionMap(dns *Msg, compression map[string]struct{}) int { - l := headerSize - - for _, r := range dns.Question { - l += r.len(l, compression) - } - for _, r := range dns.Answer { - if r != nil { - l += r.len(l, compression) - } - } - for _, r := range dns.Ns { - if r != nil { - l += r.len(l, compression) - } - } - for _, r := range dns.Extra { - if r != nil { - l += r.len(l, compression) - } - } - - return l -} - -func domainNameLen(s string, off int, compression map[string]struct{}, compress bool) int { - if s == "" || s == "." { - return 1 - } - - escaped := strings.Contains(s, "\\") - - if compression != nil && (compress || off < maxCompressionOffset) { - // compressionLenSearch will insert the entry into the compression - // map if it doesn't contain it. - if l, ok := compressionLenSearch(compression, s, off); ok && compress { - if escaped { - return escapedNameLen(s[:l]) + 2 - } - - return l + 2 - } - } - - if escaped { - return escapedNameLen(s) + 1 - } - - return len(s) + 1 -} - -func escapedNameLen(s string) int { - nameLen := len(s) - for i := 0; i < len(s); i++ { - if s[i] != '\\' { - continue - } - - if isDDD(s[i+1:]) { - nameLen -= 3 - i += 3 - } else { - nameLen-- - i++ - } - } - - return nameLen -} - -func compressionLenSearch(c map[string]struct{}, s string, msgOff int) (int, bool) { - for off, end := 0, false; !end; off, end = NextLabel(s, off) { - if _, ok := c[s[off:]]; ok { - return off, true - } - - if msgOff+off < maxCompressionOffset { - c[s[off:]] = struct{}{} - } - } - - return 0, false -} - -// Copy returns a new RR which is a deep-copy of r. -func Copy(r RR) RR { return r.copy() } - -// Len returns the length (in octets) of the uncompressed RR in wire format. -func Len(r RR) int { return r.len(0, nil) } - -// Copy returns a new *Msg which is a deep-copy of dns. -func (dns *Msg) Copy() *Msg { return dns.CopyTo(new(Msg)) } - -// CopyTo copies the contents to the provided message using a deep-copy and returns the copy. -func (dns *Msg) CopyTo(r1 *Msg) *Msg { - r1.MsgHdr = dns.MsgHdr - r1.Compress = dns.Compress - - if len(dns.Question) > 0 { - // TODO(miek): Question is an immutable value, ok to do a shallow-copy - r1.Question = cloneSlice(dns.Question) - } - - rrArr := make([]RR, len(dns.Answer)+len(dns.Ns)+len(dns.Extra)) - r1.Answer, rrArr = rrArr[:0:len(dns.Answer)], rrArr[len(dns.Answer):] - r1.Ns, rrArr = rrArr[:0:len(dns.Ns)], rrArr[len(dns.Ns):] - r1.Extra = rrArr[:0:len(dns.Extra)] - - for _, r := range dns.Answer { - r1.Answer = append(r1.Answer, r.copy()) - } - - for _, r := range dns.Ns { - r1.Ns = append(r1.Ns, r.copy()) - } - - for _, r := range dns.Extra { - r1.Extra = append(r1.Extra, r.copy()) - } - - return r1 -} - -func (q *Question) pack(msg []byte, off int, compression compressionMap, compress bool) (int, error) { - off, err := packDomainName(q.Name, msg, off, compression, compress) - if err != nil { - return off, err - } - off, err = packUint16(q.Qtype, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(q.Qclass, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func unpackQuestion(msg []byte, off int) (Question, int, error) { - var ( - q Question - err error - ) - q.Name, off, err = UnpackDomainName(msg, off) - if err != nil { - return q, off, fmt.Errorf("bad question name: %w", err) - } - if off == len(msg) { - return q, off, nil - } - q.Qtype, off, err = unpackUint16(msg, off) - if err != nil { - return q, off, fmt.Errorf("bad question qtype: %w", err) - } - if off == len(msg) { - return q, off, nil - } - q.Qclass, off, err = unpackUint16(msg, off) - if err != nil { - return q, off, fmt.Errorf("bad question qclass: %w", err) - } - - if off == len(msg) { - return q, off, nil - } - - return q, off, nil -} - -func (dh *Header) pack(msg []byte, off int, compression compressionMap, compress bool) (int, error) { - off, err := packUint16(dh.Id, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(dh.Bits, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(dh.Qdcount, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(dh.Ancount, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(dh.Nscount, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(dh.Arcount, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func unpackMsgHdr(msg []byte, off int) (Header, int, error) { - var ( - dh Header - err error - ) - dh.Id, off, err = unpackUint16(msg, off) - if err != nil { - return dh, off, fmt.Errorf("bad header id: %w", err) - } - dh.Bits, off, err = unpackUint16(msg, off) - if err != nil { - return dh, off, fmt.Errorf("bad header bits: %w", err) - } - dh.Qdcount, off, err = unpackUint16(msg, off) - if err != nil { - return dh, off, fmt.Errorf("bad header question count: %w", err) - } - dh.Ancount, off, err = unpackUint16(msg, off) - if err != nil { - return dh, off, fmt.Errorf("bad header answer count: %w", err) - } - dh.Nscount, off, err = unpackUint16(msg, off) - if err != nil { - return dh, off, fmt.Errorf("bad header ns count: %w", err) - } - dh.Arcount, off, err = unpackUint16(msg, off) - if err != nil { - return dh, off, fmt.Errorf("bad header extra count: %w", err) - } - return dh, off, nil -} - -// setHdr set the header in the dns using the binary data in dh. -func (dns *Msg) setHdr(dh Header) { - dns.Id = dh.Id - dns.Response = dh.Bits&_QR != 0 - dns.Opcode = int(dh.Bits>>11) & 0xF - dns.Authoritative = dh.Bits&_AA != 0 - dns.Truncated = dh.Bits&_TC != 0 - dns.RecursionDesired = dh.Bits&_RD != 0 - dns.RecursionAvailable = dh.Bits&_RA != 0 - dns.Zero = dh.Bits&_Z != 0 // _Z covers the zero bit, which should be zero; not sure why we set it to the opposite. - dns.AuthenticatedData = dh.Bits&_AD != 0 - dns.CheckingDisabled = dh.Bits&_CD != 0 - dns.Rcode = int(dh.Bits & 0xF) -} diff --git a/vendor/github.com/miekg/dns/msg_helpers.go b/vendor/github.com/miekg/dns/msg_helpers.go deleted file mode 100644 index acec21f7de..0000000000 --- a/vendor/github.com/miekg/dns/msg_helpers.go +++ /dev/null @@ -1,834 +0,0 @@ -package dns - -import ( - "encoding/base32" - "encoding/base64" - "encoding/binary" - "encoding/hex" - "net" - "sort" - "strings" -) - -// helper functions called from the generated zmsg.go - -// These function are named after the tag to help pack/unpack, if there is no tag it is the name -// of the type they pack/unpack (string, int, etc). We prefix all with unpackData or packData, so packDataA or -// packDataDomainName. - -func unpackDataA(msg []byte, off int) (net.IP, int, error) { - if off+net.IPv4len > len(msg) { - return nil, len(msg), &Error{err: "overflow unpacking a"} - } - return cloneSlice(msg[off : off+net.IPv4len]), off + net.IPv4len, nil -} - -func packDataA(a net.IP, msg []byte, off int) (int, error) { - switch len(a) { - case net.IPv4len, net.IPv6len: - // It must be a slice of 4, even if it is 16, we encode only the first 4 - if off+net.IPv4len > len(msg) { - return len(msg), &Error{err: "overflow packing a"} - } - - copy(msg[off:], a.To4()) - off += net.IPv4len - case 0: - // Allowed, for dynamic updates. - default: - return len(msg), &Error{err: "overflow packing a"} - } - return off, nil -} - -func unpackDataAAAA(msg []byte, off int) (net.IP, int, error) { - if off+net.IPv6len > len(msg) { - return nil, len(msg), &Error{err: "overflow unpacking aaaa"} - } - return cloneSlice(msg[off : off+net.IPv6len]), off + net.IPv6len, nil -} - -func packDataAAAA(aaaa net.IP, msg []byte, off int) (int, error) { - switch len(aaaa) { - case net.IPv6len: - if off+net.IPv6len > len(msg) { - return len(msg), &Error{err: "overflow packing aaaa"} - } - - copy(msg[off:], aaaa) - off += net.IPv6len - case 0: - // Allowed, dynamic updates. - default: - return len(msg), &Error{err: "overflow packing aaaa"} - } - return off, nil -} - -// unpackHeader unpacks an RR header, returning the offset to the end of the header and a -// re-sliced msg according to the expected length of the RR. -func unpackHeader(msg []byte, off int) (rr RR_Header, off1 int, truncmsg []byte, err error) { - hdr := RR_Header{} - if off == len(msg) { - return hdr, off, msg, nil - } - - hdr.Name, off, err = UnpackDomainName(msg, off) - if err != nil { - return hdr, len(msg), msg, err - } - hdr.Rrtype, off, err = unpackUint16(msg, off) - if err != nil { - return hdr, len(msg), msg, err - } - hdr.Class, off, err = unpackUint16(msg, off) - if err != nil { - return hdr, len(msg), msg, err - } - hdr.Ttl, off, err = unpackUint32(msg, off) - if err != nil { - return hdr, len(msg), msg, err - } - hdr.Rdlength, off, err = unpackUint16(msg, off) - if err != nil { - return hdr, len(msg), msg, err - } - msg, err = truncateMsgFromRdlength(msg, off, hdr.Rdlength) - return hdr, off, msg, err -} - -// packHeader packs an RR header, returning the offset to the end of the header. -// See PackDomainName for documentation about the compression. -func (hdr RR_Header) packHeader(msg []byte, off int, compression compressionMap, compress bool) (int, error) { - if off == len(msg) { - return off, nil - } - - off, err := packDomainName(hdr.Name, msg, off, compression, compress) - if err != nil { - return len(msg), err - } - off, err = packUint16(hdr.Rrtype, msg, off) - if err != nil { - return len(msg), err - } - off, err = packUint16(hdr.Class, msg, off) - if err != nil { - return len(msg), err - } - off, err = packUint32(hdr.Ttl, msg, off) - if err != nil { - return len(msg), err - } - off, err = packUint16(0, msg, off) // The RDLENGTH field will be set later in packRR. - if err != nil { - return len(msg), err - } - return off, nil -} - -// helper helper functions. - -// truncateMsgFromRdLength truncates msg to match the expected length of the RR. -// Returns an error if msg is smaller than the expected size. -func truncateMsgFromRdlength(msg []byte, off int, rdlength uint16) (truncmsg []byte, err error) { - lenrd := off + int(rdlength) - if lenrd > len(msg) { - return msg, &Error{err: "overflowing header size"} - } - return msg[:lenrd], nil -} - -var base32HexNoPadEncoding = base32.HexEncoding.WithPadding(base32.NoPadding) - -func fromBase32(s []byte) (buf []byte, err error) { - for i, b := range s { - if b >= 'a' && b <= 'z' { - s[i] = b - 32 - } - } - buflen := base32HexNoPadEncoding.DecodedLen(len(s)) - buf = make([]byte, buflen) - n, err := base32HexNoPadEncoding.Decode(buf, s) - buf = buf[:n] - return -} - -func toBase32(b []byte) string { - return base32HexNoPadEncoding.EncodeToString(b) -} - -func fromBase64(s []byte) (buf []byte, err error) { - buflen := base64.StdEncoding.DecodedLen(len(s)) - buf = make([]byte, buflen) - n, err := base64.StdEncoding.Decode(buf, s) - buf = buf[:n] - return -} - -func toBase64(b []byte) string { return base64.StdEncoding.EncodeToString(b) } - -// dynamicUpdate returns true if the Rdlength is zero. -func noRdata(h RR_Header) bool { return h.Rdlength == 0 } - -func unpackUint8(msg []byte, off int) (i uint8, off1 int, err error) { - if off+1 > len(msg) { - return 0, len(msg), &Error{err: "overflow unpacking uint8"} - } - return msg[off], off + 1, nil -} - -func packUint8(i uint8, msg []byte, off int) (off1 int, err error) { - if off+1 > len(msg) { - return len(msg), &Error{err: "overflow packing uint8"} - } - msg[off] = i - return off + 1, nil -} - -func unpackUint16(msg []byte, off int) (i uint16, off1 int, err error) { - if off+2 > len(msg) { - return 0, len(msg), &Error{err: "overflow unpacking uint16"} - } - return binary.BigEndian.Uint16(msg[off:]), off + 2, nil -} - -func packUint16(i uint16, msg []byte, off int) (off1 int, err error) { - if off+2 > len(msg) { - return len(msg), &Error{err: "overflow packing uint16"} - } - binary.BigEndian.PutUint16(msg[off:], i) - return off + 2, nil -} - -func unpackUint32(msg []byte, off int) (i uint32, off1 int, err error) { - if off+4 > len(msg) { - return 0, len(msg), &Error{err: "overflow unpacking uint32"} - } - return binary.BigEndian.Uint32(msg[off:]), off + 4, nil -} - -func packUint32(i uint32, msg []byte, off int) (off1 int, err error) { - if off+4 > len(msg) { - return len(msg), &Error{err: "overflow packing uint32"} - } - binary.BigEndian.PutUint32(msg[off:], i) - return off + 4, nil -} - -func unpackUint48(msg []byte, off int) (i uint64, off1 int, err error) { - if off+6 > len(msg) { - return 0, len(msg), &Error{err: "overflow unpacking uint64 as uint48"} - } - // Used in TSIG where the last 48 bits are occupied, so for now, assume a uint48 (6 bytes) - i = uint64(msg[off])<<40 | uint64(msg[off+1])<<32 | uint64(msg[off+2])<<24 | uint64(msg[off+3])<<16 | - uint64(msg[off+4])<<8 | uint64(msg[off+5]) - off += 6 - return i, off, nil -} - -func packUint48(i uint64, msg []byte, off int) (off1 int, err error) { - if off+6 > len(msg) { - return len(msg), &Error{err: "overflow packing uint64 as uint48"} - } - msg[off] = byte(i >> 40) - msg[off+1] = byte(i >> 32) - msg[off+2] = byte(i >> 24) - msg[off+3] = byte(i >> 16) - msg[off+4] = byte(i >> 8) - msg[off+5] = byte(i) - off += 6 - return off, nil -} - -func unpackUint64(msg []byte, off int) (i uint64, off1 int, err error) { - if off+8 > len(msg) { - return 0, len(msg), &Error{err: "overflow unpacking uint64"} - } - return binary.BigEndian.Uint64(msg[off:]), off + 8, nil -} - -func packUint64(i uint64, msg []byte, off int) (off1 int, err error) { - if off+8 > len(msg) { - return len(msg), &Error{err: "overflow packing uint64"} - } - binary.BigEndian.PutUint64(msg[off:], i) - off += 8 - return off, nil -} - -func unpackString(msg []byte, off int) (string, int, error) { - if off+1 > len(msg) { - return "", off, &Error{err: "overflow unpacking txt"} - } - l := int(msg[off]) - off++ - if off+l > len(msg) { - return "", off, &Error{err: "overflow unpacking txt"} - } - var s strings.Builder - consumed := 0 - for i, b := range msg[off : off+l] { - switch { - case b == '"' || b == '\\': - if consumed == 0 { - s.Grow(l * 2) - } - s.Write(msg[off+consumed : off+i]) - s.WriteByte('\\') - s.WriteByte(b) - consumed = i + 1 - case b < ' ' || b > '~': // unprintable - if consumed == 0 { - s.Grow(l * 2) - } - s.Write(msg[off+consumed : off+i]) - s.WriteString(escapeByte(b)) - consumed = i + 1 - } - } - if consumed == 0 { // no escaping needed - return string(msg[off : off+l]), off + l, nil - } - s.Write(msg[off+consumed : off+l]) - return s.String(), off + l, nil -} - -func packString(s string, msg []byte, off int) (int, error) { - off, err := packTxtString(s, msg, off) - if err != nil { - return len(msg), err - } - return off, nil -} - -func unpackStringBase32(msg []byte, off, end int) (string, int, error) { - if end > len(msg) { - return "", len(msg), &Error{err: "overflow unpacking base32"} - } - s := toBase32(msg[off:end]) - return s, end, nil -} - -func packStringBase32(s string, msg []byte, off int) (int, error) { - b32, err := fromBase32([]byte(s)) - if err != nil { - return len(msg), err - } - if off+len(b32) > len(msg) { - return len(msg), &Error{err: "overflow packing base32"} - } - copy(msg[off:off+len(b32)], b32) - off += len(b32) - return off, nil -} - -func unpackStringBase64(msg []byte, off, end int) (string, int, error) { - // Rest of the RR is base64 encoded value, so we don't need an explicit length - // to be set. Thus far all RR's that have base64 encoded fields have those as their - // last one. What we do need is the end of the RR! - if end > len(msg) { - return "", len(msg), &Error{err: "overflow unpacking base64"} - } - s := toBase64(msg[off:end]) - return s, end, nil -} - -func packStringBase64(s string, msg []byte, off int) (int, error) { - b64, err := fromBase64([]byte(s)) - if err != nil { - return len(msg), err - } - if off+len(b64) > len(msg) { - return len(msg), &Error{err: "overflow packing base64"} - } - copy(msg[off:off+len(b64)], b64) - off += len(b64) - return off, nil -} - -func unpackStringHex(msg []byte, off, end int) (string, int, error) { - // Rest of the RR is hex encoded value, so we don't need an explicit length - // to be set. NSEC and TSIG have hex fields with a length field. - // What we do need is the end of the RR! - if end > len(msg) { - return "", len(msg), &Error{err: "overflow unpacking hex"} - } - - s := hex.EncodeToString(msg[off:end]) - return s, end, nil -} - -func packStringHex(s string, msg []byte, off int) (int, error) { - h, err := hex.DecodeString(s) - if err != nil { - return len(msg), err - } - if off+len(h) > len(msg) { - return len(msg), &Error{err: "overflow packing hex"} - } - copy(msg[off:off+len(h)], h) - off += len(h) - return off, nil -} - -func unpackStringAny(msg []byte, off, end int) (string, int, error) { - if end > len(msg) { - return "", len(msg), &Error{err: "overflow unpacking anything"} - } - return string(msg[off:end]), end, nil -} - -func packStringAny(s string, msg []byte, off int) (int, error) { - if off+len(s) > len(msg) { - return len(msg), &Error{err: "overflow packing anything"} - } - copy(msg[off:off+len(s)], s) - off += len(s) - return off, nil -} - -func unpackStringTxt(msg []byte, off int) ([]string, int, error) { - txt, off, err := unpackTxt(msg, off) - if err != nil { - return nil, len(msg), err - } - return txt, off, nil -} - -func packStringTxt(s []string, msg []byte, off int) (int, error) { - off, err := packTxt(s, msg, off) - if err != nil { - return len(msg), err - } - return off, nil -} - -func unpackDataOpt(msg []byte, off int) ([]EDNS0, int, error) { - var edns []EDNS0 - for off < len(msg) { - if off+4 > len(msg) { - return nil, len(msg), &Error{err: "overflow unpacking opt"} - } - code := binary.BigEndian.Uint16(msg[off:]) - off += 2 - optlen := binary.BigEndian.Uint16(msg[off:]) - off += 2 - if off+int(optlen) > len(msg) { - return nil, len(msg), &Error{err: "overflow unpacking opt"} - } - opt := makeDataOpt(code) - if err := opt.unpack(msg[off : off+int(optlen)]); err != nil { - return nil, len(msg), err - } - edns = append(edns, opt) - off += int(optlen) - } - return edns, off, nil -} - -func packDataOpt(options []EDNS0, msg []byte, off int) (int, error) { - for _, el := range options { - b, err := el.pack() - if err != nil || off+4 > len(msg) { - return len(msg), &Error{err: "overflow packing opt"} - } - binary.BigEndian.PutUint16(msg[off:], el.Option()) // Option code - binary.BigEndian.PutUint16(msg[off+2:], uint16(len(b))) // Length - off += 4 - if off+len(b) > len(msg) { - return len(msg), &Error{err: "overflow packing opt"} - } - // Actual data - copy(msg[off:off+len(b)], b) - off += len(b) - } - return off, nil -} - -func unpackStringOctet(msg []byte, off int) (string, int, error) { - s := string(msg[off:]) - return s, len(msg), nil -} - -func packStringOctet(s string, msg []byte, off int) (int, error) { - off, err := packOctetString(s, msg, off) - if err != nil { - return len(msg), err - } - return off, nil -} - -func unpackDataNsec(msg []byte, off int) ([]uint16, int, error) { - var nsec []uint16 - length, window, lastwindow := 0, 0, -1 - for off < len(msg) { - if off+2 > len(msg) { - return nsec, len(msg), &Error{err: "overflow unpacking NSEC(3)"} - } - window = int(msg[off]) - length = int(msg[off+1]) - off += 2 - if window <= lastwindow { - // RFC 4034: Blocks are present in the NSEC RR RDATA in - // increasing numerical order. - return nsec, len(msg), &Error{err: "out of order NSEC(3) block in type bitmap"} - } - if length == 0 { - // RFC 4034: Blocks with no types present MUST NOT be included. - return nsec, len(msg), &Error{err: "empty NSEC(3) block in type bitmap"} - } - if length > 32 { - return nsec, len(msg), &Error{err: "NSEC(3) block too long in type bitmap"} - } - if off+length > len(msg) { - return nsec, len(msg), &Error{err: "overflowing NSEC(3) block in type bitmap"} - } - - // Walk the bytes in the window and extract the type bits - for j, b := range msg[off : off+length] { - // Check the bits one by one, and set the type - if b&0x80 == 0x80 { - nsec = append(nsec, uint16(window*256+j*8+0)) - } - if b&0x40 == 0x40 { - nsec = append(nsec, uint16(window*256+j*8+1)) - } - if b&0x20 == 0x20 { - nsec = append(nsec, uint16(window*256+j*8+2)) - } - if b&0x10 == 0x10 { - nsec = append(nsec, uint16(window*256+j*8+3)) - } - if b&0x8 == 0x8 { - nsec = append(nsec, uint16(window*256+j*8+4)) - } - if b&0x4 == 0x4 { - nsec = append(nsec, uint16(window*256+j*8+5)) - } - if b&0x2 == 0x2 { - nsec = append(nsec, uint16(window*256+j*8+6)) - } - if b&0x1 == 0x1 { - nsec = append(nsec, uint16(window*256+j*8+7)) - } - } - off += length - lastwindow = window - } - return nsec, off, nil -} - -// typeBitMapLen is a helper function which computes the "maximum" length of -// a the NSEC Type BitMap field. -func typeBitMapLen(bitmap []uint16) int { - var l int - var lastwindow, lastlength uint16 - for _, t := range bitmap { - window := t / 256 - length := (t-window*256)/8 + 1 - if window > lastwindow && lastlength != 0 { // New window, jump to the new offset - l += int(lastlength) + 2 - lastlength = 0 - } - if window < lastwindow || length < lastlength { - // packDataNsec would return Error{err: "nsec bits out of order"} here, but - // when computing the length, we want do be liberal. - continue - } - lastwindow, lastlength = window, length - } - l += int(lastlength) + 2 - return l -} - -func packDataNsec(bitmap []uint16, msg []byte, off int) (int, error) { - if len(bitmap) == 0 { - return off, nil - } - if off > len(msg) { - return off, &Error{err: "overflow packing nsec"} - } - toZero := msg[off:] - if maxLen := typeBitMapLen(bitmap); maxLen < len(toZero) { - toZero = toZero[:maxLen] - } - for i := range toZero { - toZero[i] = 0 - } - var lastwindow, lastlength uint16 - for _, t := range bitmap { - window := t / 256 - length := (t-window*256)/8 + 1 - if window > lastwindow && lastlength != 0 { // New window, jump to the new offset - off += int(lastlength) + 2 - lastlength = 0 - } - if window < lastwindow || length < lastlength { - return len(msg), &Error{err: "nsec bits out of order"} - } - if off+2+int(length) > len(msg) { - return len(msg), &Error{err: "overflow packing nsec"} - } - // Setting the window # - msg[off] = byte(window) - // Setting the octets length - msg[off+1] = byte(length) - // Setting the bit value for the type in the right octet - msg[off+1+int(length)] |= byte(1 << (7 - t%8)) - lastwindow, lastlength = window, length - } - off += int(lastlength) + 2 - return off, nil -} - -func unpackDataSVCB(msg []byte, off int) ([]SVCBKeyValue, int, error) { - var xs []SVCBKeyValue - var code uint16 - var length uint16 - var err error - for off < len(msg) { - code, off, err = unpackUint16(msg, off) - if err != nil { - return nil, len(msg), &Error{err: "overflow unpacking SVCB"} - } - length, off, err = unpackUint16(msg, off) - if err != nil || off+int(length) > len(msg) { - return nil, len(msg), &Error{err: "overflow unpacking SVCB"} - } - e := makeSVCBKeyValue(SVCBKey(code)) - if e == nil { - return nil, len(msg), &Error{err: "bad SVCB key"} - } - if err := e.unpack(msg[off : off+int(length)]); err != nil { - return nil, len(msg), err - } - if len(xs) > 0 && e.Key() <= xs[len(xs)-1].Key() { - return nil, len(msg), &Error{err: "SVCB keys not in strictly increasing order"} - } - xs = append(xs, e) - off += int(length) - } - return xs, off, nil -} - -func packDataSVCB(pairs []SVCBKeyValue, msg []byte, off int) (int, error) { - pairs = cloneSlice(pairs) - sort.Slice(pairs, func(i, j int) bool { - return pairs[i].Key() < pairs[j].Key() - }) - prev := svcb_RESERVED - for _, el := range pairs { - if el.Key() == prev { - return len(msg), &Error{err: "repeated SVCB keys are not allowed"} - } - prev = el.Key() - packed, err := el.pack() - if err != nil { - return len(msg), err - } - off, err = packUint16(uint16(el.Key()), msg, off) - if err != nil { - return len(msg), &Error{err: "overflow packing SVCB"} - } - off, err = packUint16(uint16(len(packed)), msg, off) - if err != nil || off+len(packed) > len(msg) { - return len(msg), &Error{err: "overflow packing SVCB"} - } - copy(msg[off:off+len(packed)], packed) - off += len(packed) - } - return off, nil -} - -func unpackDataDomainNames(msg []byte, off, end int) ([]string, int, error) { - var ( - servers []string - s string - err error - ) - if end > len(msg) { - return nil, len(msg), &Error{err: "overflow unpacking domain names"} - } - for off < end { - s, off, err = UnpackDomainName(msg, off) - if err != nil { - return servers, len(msg), err - } - servers = append(servers, s) - } - return servers, off, nil -} - -func packDataDomainNames(names []string, msg []byte, off int, compression compressionMap, compress bool) (int, error) { - var err error - for _, name := range names { - off, err = packDomainName(name, msg, off, compression, compress) - if err != nil { - return len(msg), err - } - } - return off, nil -} - -func packDataApl(data []APLPrefix, msg []byte, off int) (int, error) { - var err error - for i := range data { - off, err = packDataAplPrefix(&data[i], msg, off) - if err != nil { - return len(msg), err - } - } - return off, nil -} - -func packDataAplPrefix(p *APLPrefix, msg []byte, off int) (int, error) { - if len(p.Network.IP) != len(p.Network.Mask) { - return len(msg), &Error{err: "address and mask lengths don't match"} - } - - var err error - prefix, _ := p.Network.Mask.Size() - addr := p.Network.IP.Mask(p.Network.Mask)[:(prefix+7)/8] - - switch len(p.Network.IP) { - case net.IPv4len: - off, err = packUint16(1, msg, off) - case net.IPv6len: - off, err = packUint16(2, msg, off) - default: - err = &Error{err: "unrecognized address family"} - } - if err != nil { - return len(msg), err - } - - off, err = packUint8(uint8(prefix), msg, off) - if err != nil { - return len(msg), err - } - - var n uint8 - if p.Negation { - n = 0x80 - } - - // trim trailing zero bytes as specified in RFC3123 Sections 4.1 and 4.2. - i := len(addr) - 1 - for ; i >= 0 && addr[i] == 0; i-- { - } - addr = addr[:i+1] - - adflen := uint8(len(addr)) & 0x7f - off, err = packUint8(n|adflen, msg, off) - if err != nil { - return len(msg), err - } - - if off+len(addr) > len(msg) { - return len(msg), &Error{err: "overflow packing APL prefix"} - } - off += copy(msg[off:], addr) - - return off, nil -} - -func unpackDataApl(msg []byte, off int) ([]APLPrefix, int, error) { - var result []APLPrefix - for off < len(msg) { - prefix, end, err := unpackDataAplPrefix(msg, off) - if err != nil { - return nil, len(msg), err - } - off = end - result = append(result, prefix) - } - return result, off, nil -} - -func unpackDataAplPrefix(msg []byte, off int) (APLPrefix, int, error) { - family, off, err := unpackUint16(msg, off) - if err != nil { - return APLPrefix{}, len(msg), &Error{err: "overflow unpacking APL prefix"} - } - prefix, off, err := unpackUint8(msg, off) - if err != nil { - return APLPrefix{}, len(msg), &Error{err: "overflow unpacking APL prefix"} - } - nlen, off, err := unpackUint8(msg, off) - if err != nil { - return APLPrefix{}, len(msg), &Error{err: "overflow unpacking APL prefix"} - } - - var ip []byte - switch family { - case 1: - ip = make([]byte, net.IPv4len) - case 2: - ip = make([]byte, net.IPv6len) - default: - return APLPrefix{}, len(msg), &Error{err: "unrecognized APL address family"} - } - if int(prefix) > 8*len(ip) { - return APLPrefix{}, len(msg), &Error{err: "APL prefix too long"} - } - afdlen := int(nlen & 0x7f) - if afdlen > len(ip) { - return APLPrefix{}, len(msg), &Error{err: "APL length too long"} - } - if off+afdlen > len(msg) { - return APLPrefix{}, len(msg), &Error{err: "overflow unpacking APL address"} - } - - // Address MUST NOT contain trailing zero bytes per RFC3123 Sections 4.1 and 4.2. - off += copy(ip, msg[off:off+afdlen]) - if afdlen > 0 { - last := ip[afdlen-1] - if last == 0 { - return APLPrefix{}, len(msg), &Error{err: "extra APL address bits"} - } - } - ipnet := net.IPNet{ - IP: ip, - Mask: net.CIDRMask(int(prefix), 8*len(ip)), - } - - return APLPrefix{ - Negation: (nlen & 0x80) != 0, - Network: ipnet, - }, off, nil -} - -func unpackIPSECGateway(msg []byte, off int, gatewayType uint8) (net.IP, string, int, error) { - var retAddr net.IP - var retString string - var err error - - switch gatewayType { - case IPSECGatewayNone: // do nothing - case IPSECGatewayIPv4: - retAddr, off, err = unpackDataA(msg, off) - case IPSECGatewayIPv6: - retAddr, off, err = unpackDataAAAA(msg, off) - case IPSECGatewayHost: - retString, off, err = UnpackDomainName(msg, off) - } - - return retAddr, retString, off, err -} - -func packIPSECGateway(gatewayAddr net.IP, gatewayString string, msg []byte, off int, gatewayType uint8, compression compressionMap, compress bool) (int, error) { - var err error - - switch gatewayType { - case IPSECGatewayNone: // do nothing - case IPSECGatewayIPv4: - off, err = packDataA(gatewayAddr, msg, off) - case IPSECGatewayIPv6: - off, err = packDataAAAA(gatewayAddr, msg, off) - case IPSECGatewayHost: - off, err = packDomainName(gatewayString, msg, off, compression, compress) - } - - return off, err -} diff --git a/vendor/github.com/miekg/dns/msg_truncate.go b/vendor/github.com/miekg/dns/msg_truncate.go deleted file mode 100644 index 2ddc9a7da8..0000000000 --- a/vendor/github.com/miekg/dns/msg_truncate.go +++ /dev/null @@ -1,117 +0,0 @@ -package dns - -// Truncate ensures the reply message will fit into the requested buffer -// size by removing records that exceed the requested size. -// -// It will first check if the reply fits without compression and then with -// compression. If it won't fit with compression, Truncate then walks the -// record adding as many records as possible without exceeding the -// requested buffer size. -// -// If the message fits within the requested size without compression, -// Truncate will set the message's Compress attribute to false. It is -// the caller's responsibility to set it back to true if they wish to -// compress the payload regardless of size. -// -// The TC bit will be set if any records were excluded from the message. -// If the TC bit is already set on the message it will be retained. -// TC indicates that the client should retry over TCP. -// -// According to RFC 2181, the TC bit should only be set if not all of the -// "required" RRs can be included in the response. Unfortunately, we have -// no way of knowing which RRs are required so we set the TC bit if any RR -// had to be omitted from the response. -// -// The appropriate buffer size can be retrieved from the requests OPT -// record, if present, and is transport specific otherwise. dns.MinMsgSize -// should be used for UDP requests without an OPT record, and -// dns.MaxMsgSize for TCP requests without an OPT record. -func (dns *Msg) Truncate(size int) { - if dns.IsTsig() != nil { - // To simplify this implementation, we don't perform - // truncation on responses with a TSIG record. - return - } - - // RFC 6891 mandates that the payload size in an OPT record - // less than 512 (MinMsgSize) bytes must be treated as equal to 512 bytes. - // - // For ease of use, we impose that restriction here. - if size < MinMsgSize { - size = MinMsgSize - } - - l := msgLenWithCompressionMap(dns, nil) // uncompressed length - if l <= size { - // Don't waste effort compressing this message. - dns.Compress = false - return - } - - dns.Compress = true - - edns0 := dns.popEdns0() - if edns0 != nil { - // Account for the OPT record that gets added at the end, - // by subtracting that length from our budget. - // - // The EDNS(0) OPT record must have the root domain and - // it's length is thus unaffected by compression. - size -= Len(edns0) - } - - compression := make(map[string]struct{}) - - l = headerSize - for _, r := range dns.Question { - l += r.len(l, compression) - } - - var numAnswer int - if l < size { - l, numAnswer = truncateLoop(dns.Answer, size, l, compression) - } - - var numNS int - if l < size { - l, numNS = truncateLoop(dns.Ns, size, l, compression) - } - - var numExtra int - if l < size { - _, numExtra = truncateLoop(dns.Extra, size, l, compression) - } - - // See the function documentation for when we set this. - dns.Truncated = dns.Truncated || len(dns.Answer) > numAnswer || - len(dns.Ns) > numNS || len(dns.Extra) > numExtra - - dns.Answer = dns.Answer[:numAnswer] - dns.Ns = dns.Ns[:numNS] - dns.Extra = dns.Extra[:numExtra] - - if edns0 != nil { - // Add the OPT record back onto the additional section. - dns.Extra = append(dns.Extra, edns0) - } -} - -func truncateLoop(rrs []RR, size, l int, compression map[string]struct{}) (int, int) { - for i, r := range rrs { - if r == nil { - continue - } - - l += r.len(l, compression) - if l > size { - // Return size, rather than l prior to this record, - // to prevent any further records being added. - return size, i - } - if l == size { - return l, i + 1 - } - } - - return l, len(rrs) -} diff --git a/vendor/github.com/miekg/dns/nsecx.go b/vendor/github.com/miekg/dns/nsecx.go deleted file mode 100644 index f8826817b3..0000000000 --- a/vendor/github.com/miekg/dns/nsecx.go +++ /dev/null @@ -1,95 +0,0 @@ -package dns - -import ( - "crypto/sha1" - "encoding/hex" - "strings" -) - -// HashName hashes a string (label) according to RFC 5155. It returns the hashed string in uppercase. -func HashName(label string, ha uint8, iter uint16, salt string) string { - if ha != SHA1 { - return "" - } - - wireSalt := make([]byte, hex.DecodedLen(len(salt))) - n, err := packStringHex(salt, wireSalt, 0) - if err != nil { - return "" - } - wireSalt = wireSalt[:n] - - name := make([]byte, 255) - off, err := PackDomainName(strings.ToLower(label), name, 0, nil, false) - if err != nil { - return "" - } - name = name[:off] - - s := sha1.New() - // k = 0 - s.Write(name) - s.Write(wireSalt) - nsec3 := s.Sum(nil) - - // k > 0 - for k := uint16(0); k < iter; k++ { - s.Reset() - s.Write(nsec3) - s.Write(wireSalt) - nsec3 = s.Sum(nsec3[:0]) - } - - return toBase32(nsec3) -} - -// Cover returns true if a name is covered by the NSEC3 record. -func (rr *NSEC3) Cover(name string) bool { - nameHash := HashName(name, rr.Hash, rr.Iterations, rr.Salt) - owner := strings.ToUpper(rr.Hdr.Name) - labelIndices := Split(owner) - if len(labelIndices) < 2 { - return false - } - ownerHash := owner[:labelIndices[1]-1] - ownerZone := owner[labelIndices[1]:] - if !IsSubDomain(ownerZone, strings.ToUpper(name)) { // name is outside owner zone - return false - } - - nextHash := rr.NextDomain - - // if empty interval found, try cover wildcard hashes so nameHash shouldn't match with ownerHash - if ownerHash == nextHash && nameHash != ownerHash { // empty interval - return true - } - if ownerHash > nextHash { // end of zone - if nameHash > ownerHash { // covered since there is nothing after ownerHash - return true - } - return nameHash < nextHash // if nameHash is before beginning of zone it is covered - } - if nameHash < ownerHash { // nameHash is before ownerHash, not covered - return false - } - return nameHash < nextHash // if nameHash is before nextHash is it covered (between ownerHash and nextHash) -} - -// Match returns true if a name matches the NSEC3 record -func (rr *NSEC3) Match(name string) bool { - nameHash := HashName(name, rr.Hash, rr.Iterations, rr.Salt) - owner := strings.ToUpper(rr.Hdr.Name) - labelIndices := Split(owner) - if len(labelIndices) < 2 { - return false - } - ownerHash := owner[:labelIndices[1]-1] - ownerZone := owner[labelIndices[1]:] - if !IsSubDomain(ownerZone, strings.ToUpper(name)) { // name is outside owner zone - return false - } - if ownerHash == nameHash { - return true - } - return false -} diff --git a/vendor/github.com/miekg/dns/privaterr.go b/vendor/github.com/miekg/dns/privaterr.go deleted file mode 100644 index 350ea5a47a..0000000000 --- a/vendor/github.com/miekg/dns/privaterr.go +++ /dev/null @@ -1,113 +0,0 @@ -package dns - -import "strings" - -// PrivateRdata is an interface used for implementing "Private Use" RR types, see -// RFC 6895. This allows one to experiment with new RR types, without requesting an -// official type code. Also see dns.PrivateHandle and dns.PrivateHandleRemove. -type PrivateRdata interface { - // String returns the text presentation of the Rdata of the Private RR. - String() string - // Parse parses the Rdata of the private RR. - Parse([]string) error - // Pack is used when packing a private RR into a buffer. - Pack([]byte) (int, error) - // Unpack is used when unpacking a private RR from a buffer. - Unpack([]byte) (int, error) - // Copy copies the Rdata into the PrivateRdata argument. - Copy(PrivateRdata) error - // Len returns the length in octets of the Rdata. - Len() int -} - -// PrivateRR represents an RR that uses a PrivateRdata user-defined type. -// It mocks normal RRs and implements dns.RR interface. -type PrivateRR struct { - Hdr RR_Header - Data PrivateRdata - - generator func() PrivateRdata // for copy -} - -// Header return the RR header of r. -func (r *PrivateRR) Header() *RR_Header { return &r.Hdr } - -func (r *PrivateRR) String() string { return r.Hdr.String() + r.Data.String() } - -// Private len and copy parts to satisfy RR interface. -func (r *PrivateRR) len(off int, compression map[string]struct{}) int { - l := r.Hdr.len(off, compression) - l += r.Data.Len() - return l -} - -func (r *PrivateRR) copy() RR { - // make new RR like this: - rr := &PrivateRR{r.Hdr, r.generator(), r.generator} - - if err := r.Data.Copy(rr.Data); err != nil { - panic("dns: got value that could not be used to copy Private rdata: " + err.Error()) - } - - return rr -} - -func (r *PrivateRR) pack(msg []byte, off int, compression compressionMap, compress bool) (int, error) { - n, err := r.Data.Pack(msg[off:]) - if err != nil { - return len(msg), err - } - off += n - return off, nil -} - -func (r *PrivateRR) unpack(msg []byte, off int) (int, error) { - off1, err := r.Data.Unpack(msg[off:]) - off += off1 - return off, err -} - -func (r *PrivateRR) parse(c *zlexer, origin string) *ParseError { - var l lex - text := make([]string, 0, 2) // could be 0..N elements, median is probably 1 -Fetch: - for { - // TODO(miek): we could also be returning _QUOTE, this might or might not - // be an issue (basically parsing TXT becomes hard) - switch l, _ = c.Next(); l.value { - case zNewline, zEOF: - break Fetch - case zString: - text = append(text, l.token) - } - } - - err := r.Data.Parse(text) - if err != nil { - return &ParseError{wrappedErr: err, lex: l} - } - - return nil -} - -func (r *PrivateRR) isDuplicate(r2 RR) bool { return false } - -// PrivateHandle registers a private resource record type. It requires -// string and numeric representation of private RR type and generator function as argument. -func PrivateHandle(rtypestr string, rtype uint16, generator func() PrivateRdata) { - rtypestr = strings.ToUpper(rtypestr) - - TypeToRR[rtype] = func() RR { return &PrivateRR{RR_Header{}, generator(), generator} } - TypeToString[rtype] = rtypestr - StringToType[rtypestr] = rtype -} - -// PrivateHandleRemove removes definitions required to support private RR type. -func PrivateHandleRemove(rtype uint16) { - rtypestr, ok := TypeToString[rtype] - if ok { - delete(TypeToRR, rtype) - delete(TypeToString, rtype) - delete(StringToType, rtypestr) - } -} diff --git a/vendor/github.com/miekg/dns/reverse.go b/vendor/github.com/miekg/dns/reverse.go deleted file mode 100644 index 6f5b3ea70d..0000000000 --- a/vendor/github.com/miekg/dns/reverse.go +++ /dev/null @@ -1,55 +0,0 @@ -package dns - -// StringToType is the reverse of TypeToString, needed for string parsing. -var StringToType = reverseInt16(TypeToString) - -// StringToClass is the reverse of ClassToString, needed for string parsing. -var StringToClass = reverseInt16(ClassToString) - -// StringToOpcode is a map of opcodes to strings. -var StringToOpcode = reverseInt(OpcodeToString) - -// StringToRcode is a map of rcodes to strings. -var StringToRcode = reverseInt(RcodeToString) - -func init() { - // Preserve previous NOTIMP typo, see github.com/miekg/dns/issues/733. - StringToRcode["NOTIMPL"] = RcodeNotImplemented -} - -// StringToAlgorithm is the reverse of AlgorithmToString. -var StringToAlgorithm = reverseInt8(AlgorithmToString) - -// StringToHash is a map of names to hash IDs. -var StringToHash = reverseInt8(HashToString) - -// StringToCertType is the reverse of CertTypeToString. -var StringToCertType = reverseInt16(CertTypeToString) - -// StringToStatefulType is the reverse of StatefulTypeToString. -var StringToStatefulType = reverseInt16(StatefulTypeToString) - -// Reverse a map -func reverseInt8(m map[uint8]string) map[string]uint8 { - n := make(map[string]uint8, len(m)) - for u, s := range m { - n[s] = u - } - return n -} - -func reverseInt16(m map[uint16]string) map[string]uint16 { - n := make(map[string]uint16, len(m)) - for u, s := range m { - n[s] = u - } - return n -} - -func reverseInt(m map[int]string) map[string]int { - n := make(map[string]int, len(m)) - for u, s := range m { - n[s] = u - } - return n -} diff --git a/vendor/github.com/miekg/dns/sanitize.go b/vendor/github.com/miekg/dns/sanitize.go deleted file mode 100644 index a638e862e3..0000000000 --- a/vendor/github.com/miekg/dns/sanitize.go +++ /dev/null @@ -1,86 +0,0 @@ -package dns - -// Dedup removes identical RRs from rrs. It preserves the original ordering. -// The lowest TTL of any duplicates is used in the remaining one. Dedup modifies -// rrs. -// m is used to store the RRs temporary. If it is nil a new map will be allocated. -func Dedup(rrs []RR, m map[string]RR) []RR { - - if m == nil { - m = make(map[string]RR) - } - // Save the keys, so we don't have to call normalizedString twice. - keys := make([]*string, 0, len(rrs)) - - for _, r := range rrs { - key := normalizedString(r) - keys = append(keys, &key) - if mr, ok := m[key]; ok { - // Shortest TTL wins. - rh, mrh := r.Header(), mr.Header() - if mrh.Ttl > rh.Ttl { - mrh.Ttl = rh.Ttl - } - continue - } - - m[key] = r - } - // If the length of the result map equals the amount of RRs we got, - // it means they were all different. We can then just return the original rrset. - if len(m) == len(rrs) { - return rrs - } - - j := 0 - for i, r := range rrs { - // If keys[i] lives in the map, we should copy and remove it. - if _, ok := m[*keys[i]]; ok { - delete(m, *keys[i]) - rrs[j] = r - j++ - } - - if len(m) == 0 { - break - } - } - - return rrs[:j] -} - -// normalizedString returns a normalized string from r. The TTL -// is removed and the domain name is lowercased. We go from this: -// DomainNameTTLCLASSTYPERDATA to: -// lowercasenameCLASSTYPE... -func normalizedString(r RR) string { - // A string Go DNS makes has: domainnameTTL... - b := []byte(r.String()) - - // find the first non-escaped tab, then another, so we capture where the TTL lives. - esc := false - ttlStart, ttlEnd := 0, 0 - for i := 0; i < len(b) && ttlEnd == 0; i++ { - switch { - case b[i] == '\\': - esc = !esc - case b[i] == '\t' && !esc: - if ttlStart == 0 { - ttlStart = i - continue - } - if ttlEnd == 0 { - ttlEnd = i - } - case b[i] >= 'A' && b[i] <= 'Z' && !esc: - b[i] += 32 - default: - esc = false - } - } - - // remove TTL. - copy(b[ttlStart:], b[ttlEnd:]) - cut := ttlEnd - ttlStart - return string(b[:len(b)-cut]) -} diff --git a/vendor/github.com/miekg/dns/scan.go b/vendor/github.com/miekg/dns/scan.go deleted file mode 100644 index f7c6525dd0..0000000000 --- a/vendor/github.com/miekg/dns/scan.go +++ /dev/null @@ -1,1418 +0,0 @@ -package dns - -import ( - "bufio" - "fmt" - "io" - "io/fs" - "math" - "os" - "path" - "path/filepath" - "strconv" - "strings" -) - -const maxTok = 512 // Token buffer start size, and growth size amount. - -// The maximum depth of $INCLUDE directives supported by the -// ZoneParser API. -const maxIncludeDepth = 7 - -// Tokenize a RFC 1035 zone file. The tokenizer will normalize it: -// * Add ownernames if they are left blank; -// * Suppress sequences of spaces; -// * Make each RR fit on one line (_NEWLINE is send as last) -// * Handle comments: ; -// * Handle braces - anywhere. -const ( - // Zonefile - zEOF = iota - zString - zBlank - zQuote - zNewline - zRrtpe - zOwner - zClass - zDirOrigin // $ORIGIN - zDirTTL // $TTL - zDirInclude // $INCLUDE - zDirGenerate // $GENERATE - - // Privatekey file - zValue - zKey - - zExpectOwnerDir // Ownername - zExpectOwnerBl // Whitespace after the ownername - zExpectAny // Expect rrtype, ttl or class - zExpectAnyNoClass // Expect rrtype or ttl - zExpectAnyNoClassBl // The whitespace after _EXPECT_ANY_NOCLASS - zExpectAnyNoTTL // Expect rrtype or class - zExpectAnyNoTTLBl // Whitespace after _EXPECT_ANY_NOTTL - zExpectRrtype // Expect rrtype - zExpectRrtypeBl // Whitespace BEFORE rrtype - zExpectRdata // The first element of the rdata - zExpectDirTTLBl // Space after directive $TTL - zExpectDirTTL // Directive $TTL - zExpectDirOriginBl // Space after directive $ORIGIN - zExpectDirOrigin // Directive $ORIGIN - zExpectDirIncludeBl // Space after directive $INCLUDE - zExpectDirInclude // Directive $INCLUDE - zExpectDirGenerate // Directive $GENERATE - zExpectDirGenerateBl // Space after directive $GENERATE -) - -// ParseError is a parsing error. It contains the parse error and the location in the io.Reader -// where the error occurred. -type ParseError struct { - file string - err string - wrappedErr error - lex lex -} - -func (e *ParseError) Error() (s string) { - if e.file != "" { - s = e.file + ": " - } - if e.err == "" && e.wrappedErr != nil { - e.err = e.wrappedErr.Error() - } - s += "dns: " + e.err + ": " + strconv.QuoteToASCII(e.lex.token) + " at line: " + - strconv.Itoa(e.lex.line) + ":" + strconv.Itoa(e.lex.column) - return -} - -func (e *ParseError) Unwrap() error { return e.wrappedErr } - -type lex struct { - token string // text of the token - err bool // when true, token text has lexer error - value uint8 // value: zString, _BLANK, etc. - torc uint16 // type or class as parsed in the lexer, we only need to look this up in the grammar - line int // line in the file - column int // column in the file -} - -// ttlState describes the state necessary to fill in an omitted RR TTL -type ttlState struct { - ttl uint32 // ttl is the current default TTL - isByDirective bool // isByDirective indicates whether ttl was set by a $TTL directive -} - -// NewRR reads a string s and returns the first RR. -// If s contains no records, NewRR will return nil with no error. -// -// The class defaults to IN, TTL defaults to 3600, and -// origin for resolving relative domain names defaults to the DNS root (.). -// Full zone file syntax is supported, including directives like $TTL and $ORIGIN. -// All fields of the returned RR are set from the read data, except RR.Header().Rdlength which is set to 0. -// Is you need a partial resource record with no rdata - for instance - for dynamic updates, see the [ANY] -// documentation. -func NewRR(s string) (RR, error) { - if len(s) > 0 && s[len(s)-1] != '\n' { // We need a closing newline - return ReadRR(strings.NewReader(s+"\n"), "") - } - return ReadRR(strings.NewReader(s), "") -} - -// ReadRR reads the RR contained in r. -// -// The string file is used in error reporting and to resolve relative -// $INCLUDE directives. -// -// See NewRR for more documentation. -func ReadRR(r io.Reader, file string) (RR, error) { - zp := NewZoneParser(r, ".", file) - zp.SetDefaultTTL(defaultTtl) - zp.SetIncludeAllowed(true) - rr, _ := zp.Next() - return rr, zp.Err() -} - -// ZoneParser is a parser for an RFC 1035 style zonefile. -// -// Each parsed RR in the zone is returned sequentially from Next. An -// optional comment can be retrieved with Comment. -// -// The directives $INCLUDE, $ORIGIN, $TTL and $GENERATE are all -// supported. Although $INCLUDE is disabled by default. -// Note that $GENERATE's range support up to a maximum of 65535 steps. -// -// Basic usage pattern when reading from a string (z) containing the -// zone data: -// -// zp := NewZoneParser(strings.NewReader(z), "", "") -// -// for rr, ok := zp.Next(); ok; rr, ok = zp.Next() { -// // Do something with rr -// } -// -// if err := zp.Err(); err != nil { -// // log.Println(err) -// } -// -// Comments specified after an RR (and on the same line!) are -// returned too: -// -// foo. IN A 10.0.0.1 ; this is a comment -// -// The text "; this is comment" is returned from Comment. Comments inside -// the RR are returned concatenated along with the RR. Comments on a line -// by themselves are discarded. -// -// Callers should not assume all returned data in an Resource Record is -// syntactically correct, e.g. illegal base64 in RRSIGs will be returned as-is. -type ZoneParser struct { - c *zlexer - - parseErr *ParseError - - origin string - file string - - defttl *ttlState - - h RR_Header - - // sub is used to parse $INCLUDE files and $GENERATE directives. - // Next, by calling subNext, forwards the resulting RRs from this - // sub parser to the calling code. - sub *ZoneParser - r io.Reader - fsys fs.FS - - includeDepth uint8 - - includeAllowed bool - generateDisallowed bool -} - -// NewZoneParser returns an RFC 1035 style zonefile parser that reads -// from r. -// -// The string file is used in error reporting and to resolve relative -// $INCLUDE directives. The string origin is used as the initial -// origin, as if the file would start with an $ORIGIN directive. -func NewZoneParser(r io.Reader, origin, file string) *ZoneParser { - var pe *ParseError - if origin != "" { - origin = Fqdn(origin) - if _, ok := IsDomainName(origin); !ok { - pe = &ParseError{file: file, err: "bad initial origin name"} - } - } - - return &ZoneParser{ - c: newZLexer(r), - - parseErr: pe, - - origin: origin, - file: file, - } -} - -// SetDefaultTTL sets the parsers default TTL to ttl. -func (zp *ZoneParser) SetDefaultTTL(ttl uint32) { - zp.defttl = &ttlState{ttl, false} -} - -// SetIncludeAllowed controls whether $INCLUDE directives are -// allowed. $INCLUDE directives are not supported by default. -// -// The $INCLUDE directive will open and read from a user controlled -// file on the system. Even if the file is not a valid zonefile, the -// contents of the file may be revealed in error messages, such as: -// -// /etc/passwd: dns: not a TTL: "root:x:0:0:root:/root:/bin/bash" at line: 1:31 -// /etc/shadow: dns: not a TTL: "root:$6$::0:99999:7:::" at line: 1:125 -func (zp *ZoneParser) SetIncludeAllowed(v bool) { - zp.includeAllowed = v -} - -// SetIncludeFS provides an [fs.FS] to use when looking for the target of -// $INCLUDE directives. ($INCLUDE must still be enabled separately by calling -// [ZoneParser.SetIncludeAllowed].) If fsys is nil, [os.Open] will be used. -// -// When fsys is an on-disk FS, the ability of $INCLUDE to reach files from -// outside its root directory depends upon the FS implementation. For -// instance, [os.DirFS] will refuse to open paths like "../../etc/passwd", -// however it will still follow links which may point anywhere on the system. -// -// FS paths are slash-separated on all systems, even Windows. $INCLUDE paths -// containing other characters such as backslash and colon may be accepted as -// valid, but those characters will never be interpreted by an FS -// implementation as path element separators. See [fs.ValidPath] for more -// details. -func (zp *ZoneParser) SetIncludeFS(fsys fs.FS) { - zp.fsys = fsys -} - -// Err returns the first non-EOF error that was encountered by the -// ZoneParser. -func (zp *ZoneParser) Err() error { - if zp.parseErr != nil { - return zp.parseErr - } - - if zp.sub != nil { - if err := zp.sub.Err(); err != nil { - return err - } - } - - return zp.c.Err() -} - -func (zp *ZoneParser) setParseError(err string, l lex) (RR, bool) { - zp.parseErr = &ParseError{file: zp.file, err: err, lex: l} - return nil, false -} - -// Comment returns an optional text comment that occurred alongside -// the RR. -func (zp *ZoneParser) Comment() string { - if zp.parseErr != nil { - return "" - } - - if zp.sub != nil { - return zp.sub.Comment() - } - - return zp.c.Comment() -} - -func (zp *ZoneParser) subNext() (RR, bool) { - if rr, ok := zp.sub.Next(); ok { - return rr, true - } - - if zp.sub.r != nil { - if c, ok := zp.sub.r.(io.Closer); ok { - c.Close() - } - zp.sub.r = nil - } - - if zp.sub.Err() != nil { - // We have errors to surface. - return nil, false - } - - zp.sub = nil - return zp.Next() -} - -// Next advances the parser to the next RR in the zonefile and -// returns the (RR, true). It will return (nil, false) when the -// parsing stops, either by reaching the end of the input or an -// error. After Next returns (nil, false), the Err method will return -// any error that occurred during parsing. -func (zp *ZoneParser) Next() (RR, bool) { - if zp.parseErr != nil { - return nil, false - } - if zp.sub != nil { - return zp.subNext() - } - - // 6 possible beginnings of a line (_ is a space): - // - // 0. zRRTYPE -> all omitted until the rrtype - // 1. zOwner _ zRrtype -> class/ttl omitted - // 2. zOwner _ zString _ zRrtype -> class omitted - // 3. zOwner _ zString _ zClass _ zRrtype -> ttl/class - // 4. zOwner _ zClass _ zRrtype -> ttl omitted - // 5. zOwner _ zClass _ zString _ zRrtype -> class/ttl (reversed) - // - // After detecting these, we know the zRrtype so we can jump to functions - // handling the rdata for each of these types. - - st := zExpectOwnerDir // initial state - h := &zp.h - - for l, ok := zp.c.Next(); ok; l, ok = zp.c.Next() { - // zlexer spotted an error already - if l.err { - return zp.setParseError(l.token, l) - } - - switch st { - case zExpectOwnerDir: - // We can also expect a directive, like $TTL or $ORIGIN - if zp.defttl != nil { - h.Ttl = zp.defttl.ttl - } - - h.Class = ClassINET - - switch l.value { - case zNewline: - st = zExpectOwnerDir - case zOwner: - name, ok := toAbsoluteName(l.token, zp.origin) - if !ok { - return zp.setParseError("bad owner name", l) - } - - h.Name = name - - st = zExpectOwnerBl - case zDirTTL: - st = zExpectDirTTLBl - case zDirOrigin: - st = zExpectDirOriginBl - case zDirInclude: - st = zExpectDirIncludeBl - case zDirGenerate: - st = zExpectDirGenerateBl - case zRrtpe: - h.Rrtype = l.torc - - st = zExpectRdata - case zClass: - h.Class = l.torc - - st = zExpectAnyNoClassBl - case zBlank: - // Discard, can happen when there is nothing on the - // line except the RR type - case zString: - ttl, ok := stringToTTL(l.token) - if !ok { - return zp.setParseError("not a TTL", l) - } - - h.Ttl = ttl - - if zp.defttl == nil || !zp.defttl.isByDirective { - zp.defttl = &ttlState{ttl, false} - } - - st = zExpectAnyNoTTLBl - default: - return zp.setParseError("syntax error at beginning", l) - } - case zExpectDirIncludeBl: - if l.value != zBlank { - return zp.setParseError("no blank after $INCLUDE-directive", l) - } - - st = zExpectDirInclude - case zExpectDirInclude: - if l.value != zString { - return zp.setParseError("expecting $INCLUDE value, not this...", l) - } - - neworigin := zp.origin // There may be optionally a new origin set after the filename, if not use current one - switch l, _ := zp.c.Next(); l.value { - case zBlank: - l, _ := zp.c.Next() - if l.value == zString { - name, ok := toAbsoluteName(l.token, zp.origin) - if !ok { - return zp.setParseError("bad origin name", l) - } - - neworigin = name - } - case zNewline, zEOF: - // Ok - default: - return zp.setParseError("garbage after $INCLUDE", l) - } - - if !zp.includeAllowed { - return zp.setParseError("$INCLUDE directive not allowed", l) - } - if zp.includeDepth >= maxIncludeDepth { - return zp.setParseError("too deeply nested $INCLUDE", l) - } - - // Start with the new file - includePath := l.token - var r1 io.Reader - var e1 error - if zp.fsys != nil { - // fs.FS always uses / as separator, even on Windows, so use - // path instead of filepath here: - if !path.IsAbs(includePath) { - includePath = path.Join(path.Dir(zp.file), includePath) - } - - // os.DirFS, and probably others, expect all paths to be - // relative, so clean the path and remove leading / if - // present: - includePath = strings.TrimLeft(path.Clean(includePath), "/") - - r1, e1 = zp.fsys.Open(includePath) - } else { - if !filepath.IsAbs(includePath) { - includePath = filepath.Join(filepath.Dir(zp.file), includePath) - } - r1, e1 = os.Open(includePath) - } - if e1 != nil { - var as string - if includePath != l.token { - as = fmt.Sprintf(" as `%s'", includePath) - } - zp.parseErr = &ParseError{ - file: zp.file, - wrappedErr: fmt.Errorf("failed to open `%s'%s: %w", l.token, as, e1), - lex: l, - } - return nil, false - } - - zp.sub = NewZoneParser(r1, neworigin, includePath) - zp.sub.defttl, zp.sub.includeDepth, zp.sub.r = zp.defttl, zp.includeDepth+1, r1 - zp.sub.SetIncludeAllowed(true) - zp.sub.SetIncludeFS(zp.fsys) - return zp.subNext() - case zExpectDirTTLBl: - if l.value != zBlank { - return zp.setParseError("no blank after $TTL-directive", l) - } - - st = zExpectDirTTL - case zExpectDirTTL: - if l.value != zString { - return zp.setParseError("expecting $TTL value, not this...", l) - } - - if err := slurpRemainder(zp.c); err != nil { - return zp.setParseError(err.err, err.lex) - } - - ttl, ok := stringToTTL(l.token) - if !ok { - return zp.setParseError("expecting $TTL value, not this...", l) - } - - zp.defttl = &ttlState{ttl, true} - - st = zExpectOwnerDir - case zExpectDirOriginBl: - if l.value != zBlank { - return zp.setParseError("no blank after $ORIGIN-directive", l) - } - - st = zExpectDirOrigin - case zExpectDirOrigin: - if l.value != zString { - return zp.setParseError("expecting $ORIGIN value, not this...", l) - } - - if err := slurpRemainder(zp.c); err != nil { - return zp.setParseError(err.err, err.lex) - } - - name, ok := toAbsoluteName(l.token, zp.origin) - if !ok { - return zp.setParseError("bad origin name", l) - } - - zp.origin = name - - st = zExpectOwnerDir - case zExpectDirGenerateBl: - if l.value != zBlank { - return zp.setParseError("no blank after $GENERATE-directive", l) - } - - st = zExpectDirGenerate - case zExpectDirGenerate: - if zp.generateDisallowed { - return zp.setParseError("nested $GENERATE directive not allowed", l) - } - if l.value != zString { - return zp.setParseError("expecting $GENERATE value, not this...", l) - } - - return zp.generate(l) - case zExpectOwnerBl: - if l.value != zBlank { - return zp.setParseError("no blank after owner", l) - } - - st = zExpectAny - case zExpectAny: - switch l.value { - case zRrtpe: - if zp.defttl == nil { - return zp.setParseError("missing TTL with no previous value", l) - } - - h.Rrtype = l.torc - - st = zExpectRdata - case zClass: - h.Class = l.torc - - st = zExpectAnyNoClassBl - case zString: - ttl, ok := stringToTTL(l.token) - if !ok { - return zp.setParseError("not a TTL", l) - } - - h.Ttl = ttl - - if zp.defttl == nil || !zp.defttl.isByDirective { - zp.defttl = &ttlState{ttl, false} - } - - st = zExpectAnyNoTTLBl - default: - return zp.setParseError("expecting RR type, TTL or class, not this...", l) - } - case zExpectAnyNoClassBl: - if l.value != zBlank { - return zp.setParseError("no blank before class", l) - } - - st = zExpectAnyNoClass - case zExpectAnyNoTTLBl: - if l.value != zBlank { - return zp.setParseError("no blank before TTL", l) - } - - st = zExpectAnyNoTTL - case zExpectAnyNoTTL: - switch l.value { - case zClass: - h.Class = l.torc - - st = zExpectRrtypeBl - case zRrtpe: - h.Rrtype = l.torc - - st = zExpectRdata - default: - return zp.setParseError("expecting RR type or class, not this...", l) - } - case zExpectAnyNoClass: - switch l.value { - case zString: - ttl, ok := stringToTTL(l.token) - if !ok { - return zp.setParseError("not a TTL", l) - } - - h.Ttl = ttl - - if zp.defttl == nil || !zp.defttl.isByDirective { - zp.defttl = &ttlState{ttl, false} - } - - st = zExpectRrtypeBl - case zRrtpe: - h.Rrtype = l.torc - - st = zExpectRdata - default: - return zp.setParseError("expecting RR type or TTL, not this...", l) - } - case zExpectRrtypeBl: - if l.value != zBlank { - return zp.setParseError("no blank before RR type", l) - } - - st = zExpectRrtype - case zExpectRrtype: - if l.value != zRrtpe { - return zp.setParseError("unknown RR type", l) - } - - h.Rrtype = l.torc - - st = zExpectRdata - case zExpectRdata: - var ( - rr RR - parseAsRFC3597 bool - ) - if newFn, ok := TypeToRR[h.Rrtype]; ok { - rr = newFn() - *rr.Header() = *h - - // We may be parsing a known RR type using the RFC3597 format. - // If so, we handle that here in a generic way. - // - // This is also true for PrivateRR types which will have the - // RFC3597 parsing done for them and the Unpack method called - // to populate the RR instead of simply deferring to Parse. - if zp.c.Peek().token == "\\#" { - parseAsRFC3597 = true - } - } else { - rr = &RFC3597{Hdr: *h} - } - - _, isPrivate := rr.(*PrivateRR) - if !isPrivate && zp.c.Peek().token == "" { - // This is a dynamic update rr. - - if err := slurpRemainder(zp.c); err != nil { - return zp.setParseError(err.err, err.lex) - } - - return rr, true - } else if l.value == zNewline { - return zp.setParseError("unexpected newline", l) - } - - parseAsRR := rr - if parseAsRFC3597 { - parseAsRR = &RFC3597{Hdr: *h} - } - - if err := parseAsRR.parse(zp.c, zp.origin); err != nil { - // err is a concrete *ParseError without the file field set. - // The setParseError call below will construct a new - // *ParseError with file set to zp.file. - - // err.lex may be nil in which case we substitute our current - // lex token. - if err.lex == (lex{}) { - return zp.setParseError(err.err, l) - } - - return zp.setParseError(err.err, err.lex) - } - - if parseAsRFC3597 { - err := parseAsRR.(*RFC3597).fromRFC3597(rr) - if err != nil { - return zp.setParseError(err.Error(), l) - } - } - - return rr, true - } - } - - // If we get here, we and the h.Rrtype is still zero, we haven't parsed anything, this - // is not an error, because an empty zone file is still a zone file. - return nil, false -} - -type zlexer struct { - br io.ByteReader - - readErr error - - line int - column int - - comBuf string - comment string - - l lex - cachedL *lex - - brace int - quote bool - space bool - commt bool - rrtype bool - owner bool - - nextL bool - - eol bool // end-of-line -} - -func newZLexer(r io.Reader) *zlexer { - br, ok := r.(io.ByteReader) - if !ok { - br = bufio.NewReaderSize(r, 1024) - } - - return &zlexer{ - br: br, - - line: 1, - - owner: true, - } -} - -func (zl *zlexer) Err() error { - if zl.readErr == io.EOF { - return nil - } - - return zl.readErr -} - -// readByte returns the next byte from the input -func (zl *zlexer) readByte() (byte, bool) { - if zl.readErr != nil { - return 0, false - } - - c, err := zl.br.ReadByte() - if err != nil { - zl.readErr = err - return 0, false - } - - // delay the newline handling until the next token is delivered, - // fixes off-by-one errors when reporting a parse error. - if zl.eol { - zl.line++ - zl.column = 0 - zl.eol = false - } - - if c == '\n' { - zl.eol = true - } else { - zl.column++ - } - - return c, true -} - -func (zl *zlexer) Peek() lex { - if zl.nextL { - return zl.l - } - - l, ok := zl.Next() - if !ok { - return l - } - - if zl.nextL { - // Cache l. Next returns zl.cachedL then zl.l. - zl.cachedL = &l - } else { - // In this case l == zl.l, so we just tell Next to return zl.l. - zl.nextL = true - } - - return l -} - -func (zl *zlexer) Next() (lex, bool) { - l := &zl.l - switch { - case zl.cachedL != nil: - l, zl.cachedL = zl.cachedL, nil - return *l, true - case zl.nextL: - zl.nextL = false - return *l, true - case l.err: - // Parsing errors should be sticky. - return lex{value: zEOF}, false - } - - var ( - str = make([]byte, maxTok) // Hold string text - com = make([]byte, maxTok) // Hold comment text - - stri int // Offset in str (0 means empty) - comi int // Offset in com (0 means empty) - - escape bool - ) - - if zl.comBuf != "" { - comi = copy(com[:], zl.comBuf) - zl.comBuf = "" - } - - zl.comment = "" - - for x, ok := zl.readByte(); ok; x, ok = zl.readByte() { - l.line, l.column = zl.line, zl.column - - if stri >= len(str) { - // if buffer length is insufficient, increase it. - str = append(str[:], make([]byte, maxTok)...) - } - if comi >= len(com) { - // if buffer length is insufficient, increase it. - com = append(com[:], make([]byte, maxTok)...) - } - - switch x { - case ' ', '\t': - if escape || zl.quote { - // Inside quotes or escaped this is legal. - str[stri] = x - stri++ - - escape = false - break - } - - if zl.commt { - com[comi] = x - comi++ - break - } - - var retL lex - if stri == 0 { - // Space directly in the beginning, handled in the grammar - } else if zl.owner { - // If we have a string and it's the first, make it an owner - l.value = zOwner - l.token = string(str[:stri]) - - // escape $... start with a \ not a $, so this will work - switch strings.ToUpper(l.token) { - case "$TTL": - l.value = zDirTTL - case "$ORIGIN": - l.value = zDirOrigin - case "$INCLUDE": - l.value = zDirInclude - case "$GENERATE": - l.value = zDirGenerate - } - - retL = *l - } else { - l.value = zString - l.token = string(str[:stri]) - - if !zl.rrtype { - tokenUpper := strings.ToUpper(l.token) - if t, ok := StringToType[tokenUpper]; ok { - l.value = zRrtpe - l.torc = t - - zl.rrtype = true - } else if strings.HasPrefix(tokenUpper, "TYPE") { - t, ok := typeToInt(l.token) - if !ok { - l.token = "unknown RR type" - l.err = true - return *l, true - } - - l.value = zRrtpe - l.torc = t - - zl.rrtype = true - } - - if t, ok := StringToClass[tokenUpper]; ok { - l.value = zClass - l.torc = t - } else if strings.HasPrefix(tokenUpper, "CLASS") { - t, ok := classToInt(l.token) - if !ok { - l.token = "unknown class" - l.err = true - return *l, true - } - - l.value = zClass - l.torc = t - } - } - - retL = *l - } - - zl.owner = false - - if !zl.space { - zl.space = true - - l.value = zBlank - l.token = " " - - if retL == (lex{}) { - return *l, true - } - - zl.nextL = true - } - - if retL != (lex{}) { - return retL, true - } - case ';': - if escape || zl.quote { - // Inside quotes or escaped this is legal. - str[stri] = x - stri++ - - escape = false - break - } - - zl.commt = true - zl.comBuf = "" - - if comi > 1 { - // A newline was previously seen inside a comment that - // was inside braces and we delayed adding it until now. - com[comi] = ' ' // convert newline to space - comi++ - if comi >= len(com) { - l.token = "comment length insufficient for parsing" - l.err = true - return *l, true - } - } - - com[comi] = ';' - comi++ - - if stri > 0 { - zl.comBuf = string(com[:comi]) - - l.value = zString - l.token = string(str[:stri]) - return *l, true - } - case '\r': - escape = false - - if zl.quote { - str[stri] = x - stri++ - } - - // discard if outside of quotes - case '\n': - escape = false - - // Escaped newline - if zl.quote { - str[stri] = x - stri++ - break - } - - if zl.commt { - // Reset a comment - zl.commt = false - zl.rrtype = false - - // If not in a brace this ends the comment AND the RR - if zl.brace == 0 { - zl.owner = true - - l.value = zNewline - l.token = "\n" - zl.comment = string(com[:comi]) - return *l, true - } - - zl.comBuf = string(com[:comi]) - break - } - - if zl.brace == 0 { - // If there is previous text, we should output it here - var retL lex - if stri != 0 { - l.value = zString - l.token = string(str[:stri]) - - if !zl.rrtype { - tokenUpper := strings.ToUpper(l.token) - if t, ok := StringToType[tokenUpper]; ok { - zl.rrtype = true - - l.value = zRrtpe - l.torc = t - } - } - - retL = *l - } - - l.value = zNewline - l.token = "\n" - - zl.comment = zl.comBuf - zl.comBuf = "" - zl.rrtype = false - zl.owner = true - - if retL != (lex{}) { - zl.nextL = true - return retL, true - } - - return *l, true - } - case '\\': - // comments do not get escaped chars, everything is copied - if zl.commt { - com[comi] = x - comi++ - break - } - - // something already escaped must be in string - if escape { - str[stri] = x - stri++ - - escape = false - break - } - - // something escaped outside of string gets added to string - str[stri] = x - stri++ - - escape = true - case '"': - if zl.commt { - com[comi] = x - comi++ - break - } - - if escape { - str[stri] = x - stri++ - - escape = false - break - } - - zl.space = false - - // send previous gathered text and the quote - var retL lex - if stri != 0 { - l.value = zString - l.token = string(str[:stri]) - - retL = *l - } - - // send quote itself as separate token - l.value = zQuote - l.token = "\"" - - zl.quote = !zl.quote - - if retL != (lex{}) { - zl.nextL = true - return retL, true - } - - return *l, true - case '(', ')': - if zl.commt { - com[comi] = x - comi++ - break - } - - if escape || zl.quote { - // Inside quotes or escaped this is legal. - str[stri] = x - stri++ - - escape = false - break - } - - switch x { - case ')': - zl.brace-- - - if zl.brace < 0 { - l.token = "extra closing brace" - l.err = true - return *l, true - } - case '(': - zl.brace++ - } - default: - escape = false - - if zl.commt { - com[comi] = x - comi++ - break - } - - str[stri] = x - stri++ - - zl.space = false - } - } - - if zl.readErr != nil && zl.readErr != io.EOF { - // Don't return any tokens after a read error occurs. - return lex{value: zEOF}, false - } - - var retL lex - if stri > 0 { - // Send remainder of str - l.value = zString - l.token = string(str[:stri]) - retL = *l - - if comi <= 0 { - return retL, true - } - } - - if comi > 0 { - // Send remainder of com - l.value = zNewline - l.token = "\n" - zl.comment = string(com[:comi]) - - if retL != (lex{}) { - zl.nextL = true - return retL, true - } - - return *l, true - } - - if zl.brace != 0 { - l.token = "unbalanced brace" - l.err = true - return *l, true - } - - return lex{value: zEOF}, false -} - -func (zl *zlexer) Comment() string { - if zl.l.err { - return "" - } - - return zl.comment -} - -// Extract the class number from CLASSxx -func classToInt(token string) (uint16, bool) { - offset := 5 - if len(token) < offset+1 { - return 0, false - } - class, err := strconv.ParseUint(token[offset:], 10, 16) - if err != nil { - return 0, false - } - return uint16(class), true -} - -// Extract the rr number from TYPExxx -func typeToInt(token string) (uint16, bool) { - offset := 4 - if len(token) < offset+1 { - return 0, false - } - typ, err := strconv.ParseUint(token[offset:], 10, 16) - if err != nil { - return 0, false - } - return uint16(typ), true -} - -// stringToTTL parses things like 2w, 2m, etc, and returns the time in seconds. -func stringToTTL(token string) (uint32, bool) { - var s, i uint - for _, c := range token { - switch c { - case 's', 'S': - s += i - i = 0 - case 'm', 'M': - s += i * 60 - i = 0 - case 'h', 'H': - s += i * 60 * 60 - i = 0 - case 'd', 'D': - s += i * 60 * 60 * 24 - i = 0 - case 'w', 'W': - s += i * 60 * 60 * 24 * 7 - i = 0 - case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9': - i *= 10 - i += uint(c) - '0' - default: - return 0, false - } - } - if s+i > math.MaxUint32 { - return 0, false - } - return uint32(s + i), true -} - -// Parse LOC records' [.][mM] into a -// mantissa exponent format. Token should contain the entire -// string (i.e. no spaces allowed) -func stringToCm(token string) (e, m uint8, ok bool) { - if token[len(token)-1] == 'M' || token[len(token)-1] == 'm' { - token = token[0 : len(token)-1] - } - - var ( - meters, cmeters, val int - err error - ) - mStr, cmStr, hasCM := strings.Cut(token, ".") - if hasCM { - // There's no point in having more than 2 digits in this part, and would rather make the implementation complicated ('123' should be treated as '12'). - // So we simply reject it. - // We also make sure the first character is a digit to reject '+-' signs. - cmeters, err = strconv.Atoi(cmStr) - if err != nil || len(cmStr) > 2 || cmStr[0] < '0' || cmStr[0] > '9' { - return - } - if len(cmStr) == 1 { - // 'nn.1' must be treated as 'nn-meters and 10cm, not 1cm. - cmeters *= 10 - } - } - // This slightly ugly condition will allow omitting the 'meter' part, like .01 (meaning 0.01m = 1cm). - if !hasCM || mStr != "" { - meters, err = strconv.Atoi(mStr) - // RFC1876 states the max value is 90000000.00. The latter two conditions enforce it. - if err != nil || mStr[0] < '0' || mStr[0] > '9' || meters > 90000000 || (meters == 90000000 && cmeters != 0) { - return - } - } - - if meters > 0 { - e = 2 - val = meters - } else { - e = 0 - val = cmeters - } - for val >= 10 { - e++ - val /= 10 - } - return e, uint8(val), true -} - -func toAbsoluteName(name, origin string) (absolute string, ok bool) { - // check for an explicit origin reference - if name == "@" { - // require a nonempty origin - if origin == "" { - return "", false - } - return origin, true - } - - // this can happen when we have a comment after a RR that has a domain, '... MX 20 ; this is wrong'. - // technically a newline can be in a domain name, but this is clearly an error and the newline only shows - // because of the scanning and the comment. - if name == "\n" { - return "", false - } - - // require a valid domain name - _, ok = IsDomainName(name) - if !ok || name == "" { - return "", false - } - - // check if name is already absolute - if IsFqdn(name) { - return name, true - } - - // require a nonempty origin - if origin == "" { - return "", false - } - return appendOrigin(name, origin), true -} - -func appendOrigin(name, origin string) string { - if origin == "." { - return name + origin - } - return name + "." + origin -} - -// LOC record helper function -func locCheckNorth(token string, latitude uint32) (uint32, bool) { - if latitude > 90*1000*60*60 { - return latitude, false - } - switch token { - case "n", "N": - return LOC_EQUATOR + latitude, true - case "s", "S": - return LOC_EQUATOR - latitude, true - } - return latitude, false -} - -// LOC record helper function -func locCheckEast(token string, longitude uint32) (uint32, bool) { - if longitude > 180*1000*60*60 { - return longitude, false - } - switch token { - case "e", "E": - return LOC_EQUATOR + longitude, true - case "w", "W": - return LOC_EQUATOR - longitude, true - } - return longitude, false -} - -// "Eat" the rest of the "line" -func slurpRemainder(c *zlexer) *ParseError { - l, _ := c.Next() - switch l.value { - case zBlank: - l, _ = c.Next() - if l.value != zNewline && l.value != zEOF { - return &ParseError{err: "garbage after rdata", lex: l} - } - case zNewline: - case zEOF: - default: - return &ParseError{err: "garbage after rdata", lex: l} - } - return nil -} - -// Parse a 64 bit-like ipv6 address: "0014:4fff:ff20:ee64" -// Used for NID and L64 record. -func stringToNodeID(l lex) (uint64, *ParseError) { - if len(l.token) < 19 { - return 0, &ParseError{file: l.token, err: "bad NID/L64 NodeID/Locator64", lex: l} - } - // There must be three colons at fixes positions, if not its a parse error - if l.token[4] != ':' && l.token[9] != ':' && l.token[14] != ':' { - return 0, &ParseError{file: l.token, err: "bad NID/L64 NodeID/Locator64", lex: l} - } - s := l.token[0:4] + l.token[5:9] + l.token[10:14] + l.token[15:19] - u, err := strconv.ParseUint(s, 16, 64) - if err != nil { - return 0, &ParseError{file: l.token, err: "bad NID/L64 NodeID/Locator64", lex: l} - } - return u, nil -} diff --git a/vendor/github.com/miekg/dns/scan_rr.go b/vendor/github.com/miekg/dns/scan_rr.go deleted file mode 100644 index ac885f66fe..0000000000 --- a/vendor/github.com/miekg/dns/scan_rr.go +++ /dev/null @@ -1,1967 +0,0 @@ -package dns - -import ( - "encoding/base64" - "errors" - "fmt" - "net" - "strconv" - "strings" -) - -// A remainder of the rdata with embedded spaces, return the parsed string (sans the spaces) -// or an error -func endingToString(c *zlexer, errstr string) (string, *ParseError) { - var s strings.Builder - l, _ := c.Next() // zString - for l.value != zNewline && l.value != zEOF { - if l.err { - return s.String(), &ParseError{err: errstr, lex: l} - } - switch l.value { - case zString: - s.WriteString(l.token) - case zBlank: // Ok - default: - return "", &ParseError{err: errstr, lex: l} - } - l, _ = c.Next() - } - - return s.String(), nil -} - -// A remainder of the rdata with embedded spaces, split on unquoted whitespace -// and return the parsed string slice or an error -func endingToTxtSlice(c *zlexer, errstr string) ([]string, *ParseError) { - // Get the remaining data until we see a zNewline - l, _ := c.Next() - if l.err { - return nil, &ParseError{err: errstr, lex: l} - } - - // Build the slice - s := make([]string, 0) - quote := false - empty := false - for l.value != zNewline && l.value != zEOF { - if l.err { - return nil, &ParseError{err: errstr, lex: l} - } - switch l.value { - case zString: - empty = false - // split up tokens that are larger than 255 into 255-chunks - sx := []string{} - p := 0 - for { - i, ok := escapedStringOffset(l.token[p:], 255) - if !ok { - return nil, &ParseError{err: errstr, lex: l} - } - if i != -1 && p+i != len(l.token) { - sx = append(sx, l.token[p:p+i]) - } else { - sx = append(sx, l.token[p:]) - break - - } - p += i - } - s = append(s, sx...) - case zBlank: - if quote { - // zBlank can only be seen in between txt parts. - return nil, &ParseError{err: errstr, lex: l} - } - case zQuote: - if empty && quote { - s = append(s, "") - } - quote = !quote - empty = true - default: - return nil, &ParseError{err: errstr, lex: l} - } - l, _ = c.Next() - } - - if quote { - return nil, &ParseError{err: errstr, lex: l} - } - - return s, nil -} - -func (rr *A) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - rr.A = net.ParseIP(l.token) - // IPv4 addresses cannot include ":". - // We do this rather than use net.IP's To4() because - // To4() treats IPv4-mapped IPv6 addresses as being - // IPv4. - isIPv4 := !strings.Contains(l.token, ":") - if rr.A == nil || !isIPv4 || l.err { - return &ParseError{err: "bad A A", lex: l} - } - return slurpRemainder(c) -} - -func (rr *AAAA) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - rr.AAAA = net.ParseIP(l.token) - // IPv6 addresses must include ":", and IPv4 - // addresses cannot include ":". - isIPv6 := strings.Contains(l.token, ":") - if rr.AAAA == nil || !isIPv6 || l.err { - return &ParseError{err: "bad AAAA AAAA", lex: l} - } - return slurpRemainder(c) -} - -func (rr *NS) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad NS Ns", lex: l} - } - rr.Ns = name - return slurpRemainder(c) -} - -func (rr *PTR) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad PTR Ptr", lex: l} - } - rr.Ptr = name - return slurpRemainder(c) -} - -func (rr *NSAPPTR) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad NSAP-PTR Ptr", lex: l} - } - rr.Ptr = name - return slurpRemainder(c) -} - -func (rr *RP) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - mbox, mboxOk := toAbsoluteName(l.token, o) - if l.err || !mboxOk { - return &ParseError{err: "bad RP Mbox", lex: l} - } - rr.Mbox = mbox - - c.Next() // zBlank - l, _ = c.Next() - rr.Txt = l.token - - txt, txtOk := toAbsoluteName(l.token, o) - if l.err || !txtOk { - return &ParseError{err: "bad RP Txt", lex: l} - } - rr.Txt = txt - - return slurpRemainder(c) -} - -func (rr *MR) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad MR Mr", lex: l} - } - rr.Mr = name - return slurpRemainder(c) -} - -func (rr *MB) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad MB Mb", lex: l} - } - rr.Mb = name - return slurpRemainder(c) -} - -func (rr *MG) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad MG Mg", lex: l} - } - rr.Mg = name - return slurpRemainder(c) -} - -func (rr *HINFO) parse(c *zlexer, o string) *ParseError { - chunks, e := endingToTxtSlice(c, "bad HINFO Fields") - if e != nil { - return e - } - - if ln := len(chunks); ln == 0 { - return nil - } else if ln == 1 { - // Can we split it? - if out := strings.Fields(chunks[0]); len(out) > 1 { - chunks = out - } else { - chunks = append(chunks, "") - } - } - - rr.Cpu = chunks[0] - rr.Os = strings.Join(chunks[1:], " ") - return nil -} - -// according to RFC 1183 the parsing is identical to HINFO, so just use that code. -func (rr *ISDN) parse(c *zlexer, o string) *ParseError { - chunks, e := endingToTxtSlice(c, "bad ISDN Fields") - if e != nil { - return e - } - - if ln := len(chunks); ln == 0 { - return nil - } else if ln == 1 { - // Can we split it? - if out := strings.Fields(chunks[0]); len(out) > 1 { - chunks = out - } else { - chunks = append(chunks, "") - } - } - - rr.Address = chunks[0] - rr.SubAddress = strings.Join(chunks[1:], " ") - - return nil -} - -func (rr *MINFO) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - rmail, rmailOk := toAbsoluteName(l.token, o) - if l.err || !rmailOk { - return &ParseError{err: "bad MINFO Rmail", lex: l} - } - rr.Rmail = rmail - - c.Next() // zBlank - l, _ = c.Next() - rr.Email = l.token - - email, emailOk := toAbsoluteName(l.token, o) - if l.err || !emailOk { - return &ParseError{err: "bad MINFO Email", lex: l} - } - rr.Email = email - - return slurpRemainder(c) -} - -func (rr *MF) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad MF Mf", lex: l} - } - rr.Mf = name - return slurpRemainder(c) -} - -func (rr *MD) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad MD Md", lex: l} - } - rr.Md = name - return slurpRemainder(c) -} - -func (rr *MX) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad MX Pref", lex: l} - } - rr.Preference = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Mx = l.token - - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad MX Mx", lex: l} - } - rr.Mx = name - - return slurpRemainder(c) -} - -func (rr *RT) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil { - return &ParseError{err: "bad RT Preference", lex: l} - } - rr.Preference = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Host = l.token - - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad RT Host", lex: l} - } - rr.Host = name - - return slurpRemainder(c) -} - -func (rr *AFSDB) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad AFSDB Subtype", lex: l} - } - rr.Subtype = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Hostname = l.token - - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad AFSDB Hostname", lex: l} - } - rr.Hostname = name - return slurpRemainder(c) -} - -func (rr *X25) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - if l.err { - return &ParseError{err: "bad X25 PSDNAddress", lex: l} - } - rr.PSDNAddress = l.token - return slurpRemainder(c) -} - -func (rr *KX) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad KX Pref", lex: l} - } - rr.Preference = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Exchanger = l.token - - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad KX Exchanger", lex: l} - } - rr.Exchanger = name - return slurpRemainder(c) -} - -func (rr *CNAME) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad CNAME Target", lex: l} - } - rr.Target = name - return slurpRemainder(c) -} - -func (rr *DNAME) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad DNAME Target", lex: l} - } - rr.Target = name - return slurpRemainder(c) -} - -func (rr *SOA) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - ns, nsOk := toAbsoluteName(l.token, o) - if l.err || !nsOk { - return &ParseError{err: "bad SOA Ns", lex: l} - } - rr.Ns = ns - - c.Next() // zBlank - l, _ = c.Next() - rr.Mbox = l.token - - mbox, mboxOk := toAbsoluteName(l.token, o) - if l.err || !mboxOk { - return &ParseError{err: "bad SOA Mbox", lex: l} - } - rr.Mbox = mbox - - c.Next() // zBlank - - var ( - v uint32 - ok bool - ) - for i := 0; i < 5; i++ { - l, _ = c.Next() - if l.err { - return &ParseError{err: "bad SOA zone parameter", lex: l} - } - if j, err := strconv.ParseUint(l.token, 10, 32); err != nil { - if i == 0 { - // Serial must be a number - return &ParseError{err: "bad SOA zone parameter", lex: l} - } - // We allow other fields to be unitful duration strings - if v, ok = stringToTTL(l.token); !ok { - return &ParseError{err: "bad SOA zone parameter", lex: l} - - } - } else { - v = uint32(j) - } - switch i { - case 0: - rr.Serial = v - c.Next() // zBlank - case 1: - rr.Refresh = v - c.Next() // zBlank - case 2: - rr.Retry = v - c.Next() // zBlank - case 3: - rr.Expire = v - c.Next() // zBlank - case 4: - rr.Minttl = v - } - } - return slurpRemainder(c) -} - -func (rr *SRV) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad SRV Priority", lex: l} - } - rr.Priority = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - i, e1 := strconv.ParseUint(l.token, 10, 16) - if e1 != nil || l.err { - return &ParseError{err: "bad SRV Weight", lex: l} - } - rr.Weight = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - i, e2 := strconv.ParseUint(l.token, 10, 16) - if e2 != nil || l.err { - return &ParseError{err: "bad SRV Port", lex: l} - } - rr.Port = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Target = l.token - - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad SRV Target", lex: l} - } - rr.Target = name - return slurpRemainder(c) -} - -func (rr *NAPTR) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad NAPTR Order", lex: l} - } - rr.Order = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - i, e1 := strconv.ParseUint(l.token, 10, 16) - if e1 != nil || l.err { - return &ParseError{err: "bad NAPTR Preference", lex: l} - } - rr.Preference = uint16(i) - - // Flags - c.Next() // zBlank - l, _ = c.Next() // _QUOTE - if l.value != zQuote { - return &ParseError{err: "bad NAPTR Flags", lex: l} - } - l, _ = c.Next() // Either String or Quote - if l.value == zString { - rr.Flags = l.token - l, _ = c.Next() // _QUOTE - if l.value != zQuote { - return &ParseError{err: "bad NAPTR Flags", lex: l} - } - } else if l.value == zQuote { - rr.Flags = "" - } else { - return &ParseError{err: "bad NAPTR Flags", lex: l} - } - - // Service - c.Next() // zBlank - l, _ = c.Next() // _QUOTE - if l.value != zQuote { - return &ParseError{err: "bad NAPTR Service", lex: l} - } - l, _ = c.Next() // Either String or Quote - if l.value == zString { - rr.Service = l.token - l, _ = c.Next() // _QUOTE - if l.value != zQuote { - return &ParseError{err: "bad NAPTR Service", lex: l} - } - } else if l.value == zQuote { - rr.Service = "" - } else { - return &ParseError{err: "bad NAPTR Service", lex: l} - } - - // Regexp - c.Next() // zBlank - l, _ = c.Next() // _QUOTE - if l.value != zQuote { - return &ParseError{err: "bad NAPTR Regexp", lex: l} - } - l, _ = c.Next() // Either String or Quote - if l.value == zString { - rr.Regexp = l.token - l, _ = c.Next() // _QUOTE - if l.value != zQuote { - return &ParseError{err: "bad NAPTR Regexp", lex: l} - } - } else if l.value == zQuote { - rr.Regexp = "" - } else { - return &ParseError{err: "bad NAPTR Regexp", lex: l} - } - - // After quote no space?? - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Replacement = l.token - - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad NAPTR Replacement", lex: l} - } - rr.Replacement = name - return slurpRemainder(c) -} - -func (rr *TALINK) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - previousName, previousNameOk := toAbsoluteName(l.token, o) - if l.err || !previousNameOk { - return &ParseError{err: "bad TALINK PreviousName", lex: l} - } - rr.PreviousName = previousName - - c.Next() // zBlank - l, _ = c.Next() - rr.NextName = l.token - - nextName, nextNameOk := toAbsoluteName(l.token, o) - if l.err || !nextNameOk { - return &ParseError{err: "bad TALINK NextName", lex: l} - } - rr.NextName = nextName - - return slurpRemainder(c) -} - -func (rr *LOC) parse(c *zlexer, o string) *ParseError { - // Non zero defaults for LOC record, see RFC 1876, Section 3. - rr.Size = 0x12 // 1e2 cm (1m) - rr.HorizPre = 0x16 // 1e6 cm (10000m) - rr.VertPre = 0x13 // 1e3 cm (10m) - ok := false - - // North - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 32) - if e != nil || l.err || i > 90 { - return &ParseError{err: "bad LOC Latitude", lex: l} - } - rr.Latitude = 1000 * 60 * 60 * uint32(i) - - c.Next() // zBlank - // Either number, 'N' or 'S' - l, _ = c.Next() - if rr.Latitude, ok = locCheckNorth(l.token, rr.Latitude); ok { - goto East - } - if i, err := strconv.ParseUint(l.token, 10, 32); err != nil || l.err || i > 59 { - return &ParseError{err: "bad LOC Latitude minutes", lex: l} - } else { - rr.Latitude += 1000 * 60 * uint32(i) - } - - c.Next() // zBlank - l, _ = c.Next() - if i, err := strconv.ParseFloat(l.token, 64); err != nil || l.err || i < 0 || i >= 60 { - return &ParseError{err: "bad LOC Latitude seconds", lex: l} - } else { - rr.Latitude += uint32(1000 * i) - } - c.Next() // zBlank - // Either number, 'N' or 'S' - l, _ = c.Next() - if rr.Latitude, ok = locCheckNorth(l.token, rr.Latitude); ok { - goto East - } - // If still alive, flag an error - return &ParseError{err: "bad LOC Latitude North/South", lex: l} - -East: - // East - c.Next() // zBlank - l, _ = c.Next() - if i, err := strconv.ParseUint(l.token, 10, 32); err != nil || l.err || i > 180 { - return &ParseError{err: "bad LOC Longitude", lex: l} - } else { - rr.Longitude = 1000 * 60 * 60 * uint32(i) - } - c.Next() // zBlank - // Either number, 'E' or 'W' - l, _ = c.Next() - if rr.Longitude, ok = locCheckEast(l.token, rr.Longitude); ok { - goto Altitude - } - if i, err := strconv.ParseUint(l.token, 10, 32); err != nil || l.err || i > 59 { - return &ParseError{err: "bad LOC Longitude minutes", lex: l} - } else { - rr.Longitude += 1000 * 60 * uint32(i) - } - c.Next() // zBlank - l, _ = c.Next() - if i, err := strconv.ParseFloat(l.token, 64); err != nil || l.err || i < 0 || i >= 60 { - return &ParseError{err: "bad LOC Longitude seconds", lex: l} - } else { - rr.Longitude += uint32(1000 * i) - } - c.Next() // zBlank - // Either number, 'E' or 'W' - l, _ = c.Next() - if rr.Longitude, ok = locCheckEast(l.token, rr.Longitude); ok { - goto Altitude - } - // If still alive, flag an error - return &ParseError{err: "bad LOC Longitude East/West", lex: l} - -Altitude: - c.Next() // zBlank - l, _ = c.Next() - if l.token == "" || l.err { - return &ParseError{err: "bad LOC Altitude", lex: l} - } - if l.token[len(l.token)-1] == 'M' || l.token[len(l.token)-1] == 'm' { - l.token = l.token[0 : len(l.token)-1] - } - if i, err := strconv.ParseFloat(l.token, 64); err != nil { - return &ParseError{err: "bad LOC Altitude", lex: l} - } else { - rr.Altitude = uint32(i*100.0 + 10000000.0 + 0.5) - } - - // And now optionally the other values - l, _ = c.Next() - count := 0 - for l.value != zNewline && l.value != zEOF { - switch l.value { - case zString: - switch count { - case 0: // Size - exp, m, ok := stringToCm(l.token) - if !ok { - return &ParseError{err: "bad LOC Size", lex: l} - } - rr.Size = exp&0x0f | m<<4&0xf0 - case 1: // HorizPre - exp, m, ok := stringToCm(l.token) - if !ok { - return &ParseError{err: "bad LOC HorizPre", lex: l} - } - rr.HorizPre = exp&0x0f | m<<4&0xf0 - case 2: // VertPre - exp, m, ok := stringToCm(l.token) - if !ok { - return &ParseError{err: "bad LOC VertPre", lex: l} - } - rr.VertPre = exp&0x0f | m<<4&0xf0 - } - count++ - case zBlank: - // Ok - default: - return &ParseError{err: "bad LOC Size, HorizPre or VertPre", lex: l} - } - l, _ = c.Next() - } - return nil -} - -func (rr *HIP) parse(c *zlexer, o string) *ParseError { - // HitLength is not represented - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{err: "bad HIP PublicKeyAlgorithm", lex: l} - } - rr.PublicKeyAlgorithm = uint8(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - if l.token == "" || l.err { - return &ParseError{err: "bad HIP Hit", lex: l} - } - rr.Hit = l.token // This can not contain spaces, see RFC 5205 Section 6. - rr.HitLength = uint8(len(rr.Hit)) / 2 - - c.Next() // zBlank - l, _ = c.Next() // zString - if l.token == "" || l.err { - return &ParseError{err: "bad HIP PublicKey", lex: l} - } - rr.PublicKey = l.token // This cannot contain spaces - decodedPK, decodedPKerr := base64.StdEncoding.DecodeString(rr.PublicKey) - if decodedPKerr != nil { - return &ParseError{err: "bad HIP PublicKey", lex: l} - } - rr.PublicKeyLength = uint16(len(decodedPK)) - - // RendezvousServers (if any) - l, _ = c.Next() - var xs []string - for l.value != zNewline && l.value != zEOF { - switch l.value { - case zString: - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad HIP RendezvousServers", lex: l} - } - xs = append(xs, name) - case zBlank: - // Ok - default: - return &ParseError{err: "bad HIP RendezvousServers", lex: l} - } - l, _ = c.Next() - } - - rr.RendezvousServers = xs - return nil -} - -func (rr *CERT) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - if v, ok := StringToCertType[l.token]; ok { - rr.Type = v - } else if i, err := strconv.ParseUint(l.token, 10, 16); err != nil { - return &ParseError{err: "bad CERT Type", lex: l} - } else { - rr.Type = uint16(i) - } - c.Next() // zBlank - l, _ = c.Next() // zString - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad CERT KeyTag", lex: l} - } - rr.KeyTag = uint16(i) - c.Next() // zBlank - l, _ = c.Next() // zString - if v, ok := StringToAlgorithm[l.token]; ok { - rr.Algorithm = v - } else if i, err := strconv.ParseUint(l.token, 10, 8); err != nil { - return &ParseError{err: "bad CERT Algorithm", lex: l} - } else { - rr.Algorithm = uint8(i) - } - s, e1 := endingToString(c, "bad CERT Certificate") - if e1 != nil { - return e1 - } - rr.Certificate = s - return nil -} - -func (rr *OPENPGPKEY) parse(c *zlexer, o string) *ParseError { - s, e := endingToString(c, "bad OPENPGPKEY PublicKey") - if e != nil { - return e - } - rr.PublicKey = s - return nil -} - -func (rr *CSYNC) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - j, e := strconv.ParseUint(l.token, 10, 32) - if e != nil { - // Serial must be a number - return &ParseError{err: "bad CSYNC serial", lex: l} - } - rr.Serial = uint32(j) - - c.Next() // zBlank - - l, _ = c.Next() - j, e1 := strconv.ParseUint(l.token, 10, 16) - if e1 != nil { - // Serial must be a number - return &ParseError{err: "bad CSYNC flags", lex: l} - } - rr.Flags = uint16(j) - - rr.TypeBitMap = make([]uint16, 0) - var ( - k uint16 - ok bool - ) - l, _ = c.Next() - for l.value != zNewline && l.value != zEOF { - switch l.value { - case zBlank: - // Ok - case zString: - tokenUpper := strings.ToUpper(l.token) - if k, ok = StringToType[tokenUpper]; !ok { - if k, ok = typeToInt(l.token); !ok { - return &ParseError{err: "bad CSYNC TypeBitMap", lex: l} - } - } - rr.TypeBitMap = append(rr.TypeBitMap, k) - default: - return &ParseError{err: "bad CSYNC TypeBitMap", lex: l} - } - l, _ = c.Next() - } - return nil -} - -func (rr *ZONEMD) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 32) - if e != nil || l.err { - return &ParseError{err: "bad ZONEMD Serial", lex: l} - } - rr.Serial = uint32(i) - - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{err: "bad ZONEMD Scheme", lex: l} - } - rr.Scheme = uint8(i) - - c.Next() // zBlank - l, _ = c.Next() - i, err := strconv.ParseUint(l.token, 10, 8) - if err != nil || l.err { - return &ParseError{err: "bad ZONEMD Hash Algorithm", lex: l} - } - rr.Hash = uint8(i) - - s, e2 := endingToString(c, "bad ZONEMD Digest") - if e2 != nil { - return e2 - } - rr.Digest = s - return nil -} - -func (rr *SIG) parse(c *zlexer, o string) *ParseError { return rr.RRSIG.parse(c, o) } - -func (rr *RRSIG) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - tokenUpper := strings.ToUpper(l.token) - if t, ok := StringToType[tokenUpper]; !ok { - if strings.HasPrefix(tokenUpper, "TYPE") { - t, ok = typeToInt(l.token) - if !ok { - return &ParseError{err: "bad RRSIG Typecovered", lex: l} - } - rr.TypeCovered = t - } else { - return &ParseError{err: "bad RRSIG Typecovered", lex: l} - } - } else { - rr.TypeCovered = t - } - - c.Next() // zBlank - l, _ = c.Next() - if l.err { - return &ParseError{err: "bad RRSIG Algorithm", lex: l} - } - i, e := strconv.ParseUint(l.token, 10, 8) - rr.Algorithm = uint8(i) // if 0 we'll check the mnemonic in the if - if e != nil { - v, ok := StringToAlgorithm[l.token] - if !ok { - return &ParseError{err: "bad RRSIG Algorithm", lex: l} - } - rr.Algorithm = v - } - - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{err: "bad RRSIG Labels", lex: l} - } - rr.Labels = uint8(i) - - c.Next() // zBlank - l, _ = c.Next() - i, e2 := strconv.ParseUint(l.token, 10, 32) - if e2 != nil || l.err { - return &ParseError{err: "bad RRSIG OrigTtl", lex: l} - } - rr.OrigTtl = uint32(i) - - c.Next() // zBlank - l, _ = c.Next() - if i, err := StringToTime(l.token); err != nil { - // Try to see if all numeric and use it as epoch - if i, err := strconv.ParseUint(l.token, 10, 32); err == nil { - rr.Expiration = uint32(i) - } else { - return &ParseError{err: "bad RRSIG Expiration", lex: l} - } - } else { - rr.Expiration = i - } - - c.Next() // zBlank - l, _ = c.Next() - if i, err := StringToTime(l.token); err != nil { - if i, err := strconv.ParseUint(l.token, 10, 32); err == nil { - rr.Inception = uint32(i) - } else { - return &ParseError{err: "bad RRSIG Inception", lex: l} - } - } else { - rr.Inception = i - } - - c.Next() // zBlank - l, _ = c.Next() - i, e3 := strconv.ParseUint(l.token, 10, 16) - if e3 != nil || l.err { - return &ParseError{err: "bad RRSIG KeyTag", lex: l} - } - rr.KeyTag = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() - rr.SignerName = l.token - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad RRSIG SignerName", lex: l} - } - rr.SignerName = name - - s, e4 := endingToString(c, "bad RRSIG Signature") - if e4 != nil { - return e4 - } - rr.Signature = s - - return nil -} - -func (rr *NXT) parse(c *zlexer, o string) *ParseError { return rr.NSEC.parse(c, o) } - -func (rr *NSEC) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad NSEC NextDomain", lex: l} - } - rr.NextDomain = name - - rr.TypeBitMap = make([]uint16, 0) - var ( - k uint16 - ok bool - ) - l, _ = c.Next() - for l.value != zNewline && l.value != zEOF { - switch l.value { - case zBlank: - // Ok - case zString: - tokenUpper := strings.ToUpper(l.token) - if k, ok = StringToType[tokenUpper]; !ok { - if k, ok = typeToInt(l.token); !ok { - return &ParseError{err: "bad NSEC TypeBitMap", lex: l} - } - } - rr.TypeBitMap = append(rr.TypeBitMap, k) - default: - return &ParseError{err: "bad NSEC TypeBitMap", lex: l} - } - l, _ = c.Next() - } - return nil -} - -func (rr *NSEC3) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{err: "bad NSEC3 Hash", lex: l} - } - rr.Hash = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{err: "bad NSEC3 Flags", lex: l} - } - rr.Flags = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e2 := strconv.ParseUint(l.token, 10, 16) - if e2 != nil || l.err { - return &ParseError{err: "bad NSEC3 Iterations", lex: l} - } - rr.Iterations = uint16(i) - c.Next() - l, _ = c.Next() - if l.token == "" || l.err { - return &ParseError{err: "bad NSEC3 Salt", lex: l} - } - if l.token != "-" { - rr.SaltLength = uint8(len(l.token)) / 2 - rr.Salt = l.token - } - - c.Next() - l, _ = c.Next() - if l.token == "" || l.err { - return &ParseError{err: "bad NSEC3 NextDomain", lex: l} - } - rr.HashLength = 20 // Fix for NSEC3 (sha1 160 bits) - rr.NextDomain = l.token - - rr.TypeBitMap = make([]uint16, 0) - var ( - k uint16 - ok bool - ) - l, _ = c.Next() - for l.value != zNewline && l.value != zEOF { - switch l.value { - case zBlank: - // Ok - case zString: - tokenUpper := strings.ToUpper(l.token) - if k, ok = StringToType[tokenUpper]; !ok { - if k, ok = typeToInt(l.token); !ok { - return &ParseError{err: "bad NSEC3 TypeBitMap", lex: l} - } - } - rr.TypeBitMap = append(rr.TypeBitMap, k) - default: - return &ParseError{err: "bad NSEC3 TypeBitMap", lex: l} - } - l, _ = c.Next() - } - return nil -} - -func (rr *NSEC3PARAM) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{err: "bad NSEC3PARAM Hash", lex: l} - } - rr.Hash = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{err: "bad NSEC3PARAM Flags", lex: l} - } - rr.Flags = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e2 := strconv.ParseUint(l.token, 10, 16) - if e2 != nil || l.err { - return &ParseError{err: "bad NSEC3PARAM Iterations", lex: l} - } - rr.Iterations = uint16(i) - c.Next() - l, _ = c.Next() - if l.token != "-" { - rr.SaltLength = uint8(len(l.token) / 2) - rr.Salt = l.token - } - return slurpRemainder(c) -} - -func (rr *EUI48) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - if len(l.token) != 17 || l.err { - return &ParseError{err: "bad EUI48 Address", lex: l} - } - addr := make([]byte, 12) - dash := 0 - for i := 0; i < 10; i += 2 { - addr[i] = l.token[i+dash] - addr[i+1] = l.token[i+1+dash] - dash++ - if l.token[i+1+dash] != '-' { - return &ParseError{err: "bad EUI48 Address", lex: l} - } - } - addr[10] = l.token[15] - addr[11] = l.token[16] - - i, e := strconv.ParseUint(string(addr), 16, 48) - if e != nil { - return &ParseError{err: "bad EUI48 Address", lex: l} - } - rr.Address = i - return slurpRemainder(c) -} - -func (rr *EUI64) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - if len(l.token) != 23 || l.err { - return &ParseError{err: "bad EUI64 Address", lex: l} - } - addr := make([]byte, 16) - dash := 0 - for i := 0; i < 14; i += 2 { - addr[i] = l.token[i+dash] - addr[i+1] = l.token[i+1+dash] - dash++ - if l.token[i+1+dash] != '-' { - return &ParseError{err: "bad EUI64 Address", lex: l} - } - } - addr[14] = l.token[21] - addr[15] = l.token[22] - - i, e := strconv.ParseUint(string(addr), 16, 64) - if e != nil { - return &ParseError{err: "bad EUI68 Address", lex: l} - } - rr.Address = i - return slurpRemainder(c) -} - -func (rr *SSHFP) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{err: "bad SSHFP Algorithm", lex: l} - } - rr.Algorithm = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{err: "bad SSHFP Type", lex: l} - } - rr.Type = uint8(i) - c.Next() // zBlank - s, e2 := endingToString(c, "bad SSHFP Fingerprint") - if e2 != nil { - return e2 - } - rr.FingerPrint = s - return nil -} - -func (rr *DNSKEY) parseDNSKEY(c *zlexer, o, typ string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad " + typ + " Flags", lex: l} - } - rr.Flags = uint16(i) - c.Next() // zBlank - l, _ = c.Next() // zString - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{err: "bad " + typ + " Protocol", lex: l} - } - rr.Protocol = uint8(i) - c.Next() // zBlank - l, _ = c.Next() // zString - i, e2 := strconv.ParseUint(l.token, 10, 8) - if e2 != nil || l.err { - return &ParseError{err: "bad " + typ + " Algorithm", lex: l} - } - rr.Algorithm = uint8(i) - s, e3 := endingToString(c, "bad "+typ+" PublicKey") - if e3 != nil { - return e3 - } - rr.PublicKey = s - return nil -} - -func (rr *DNSKEY) parse(c *zlexer, o string) *ParseError { return rr.parseDNSKEY(c, o, "DNSKEY") } -func (rr *KEY) parse(c *zlexer, o string) *ParseError { return rr.parseDNSKEY(c, o, "KEY") } -func (rr *CDNSKEY) parse(c *zlexer, o string) *ParseError { return rr.parseDNSKEY(c, o, "CDNSKEY") } -func (rr *DS) parse(c *zlexer, o string) *ParseError { return rr.parseDS(c, o, "DS") } -func (rr *DLV) parse(c *zlexer, o string) *ParseError { return rr.parseDS(c, o, "DLV") } -func (rr *CDS) parse(c *zlexer, o string) *ParseError { return rr.parseDS(c, o, "CDS") } - -func (rr *IPSECKEY) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - num, err := strconv.ParseUint(l.token, 10, 8) - if err != nil || l.err { - return &ParseError{err: "bad IPSECKEY value", lex: l} - } - rr.Precedence = uint8(num) - c.Next() // zBlank - - l, _ = c.Next() - num, err = strconv.ParseUint(l.token, 10, 8) - if err != nil || l.err { - return &ParseError{err: "bad IPSECKEY value", lex: l} - } - rr.GatewayType = uint8(num) - c.Next() // zBlank - - l, _ = c.Next() - num, err = strconv.ParseUint(l.token, 10, 8) - if err != nil || l.err { - return &ParseError{err: "bad IPSECKEY value", lex: l} - } - rr.Algorithm = uint8(num) - c.Next() // zBlank - - l, _ = c.Next() - if l.err { - return &ParseError{err: "bad IPSECKEY gateway", lex: l} - } - - rr.GatewayAddr, rr.GatewayHost, err = parseAddrHostUnion(l.token, o, rr.GatewayType) - if err != nil { - return &ParseError{wrappedErr: fmt.Errorf("IPSECKEY %w", err), lex: l} - } - - c.Next() // zBlank - - s, pErr := endingToString(c, "bad IPSECKEY PublicKey") - if pErr != nil { - return pErr - } - rr.PublicKey = s - return slurpRemainder(c) -} - -func (rr *AMTRELAY) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - num, err := strconv.ParseUint(l.token, 10, 8) - if err != nil || l.err { - return &ParseError{err: "bad AMTRELAY value", lex: l} - } - rr.Precedence = uint8(num) - c.Next() // zBlank - - l, _ = c.Next() - if l.err || !(l.token == "0" || l.token == "1") { - return &ParseError{err: "bad discovery value", lex: l} - } - if l.token == "1" { - rr.GatewayType = 0x80 - } - - c.Next() // zBlank - - l, _ = c.Next() - num, err = strconv.ParseUint(l.token, 10, 8) - if err != nil || l.err { - return &ParseError{err: "bad AMTRELAY value", lex: l} - } - rr.GatewayType |= uint8(num) - c.Next() // zBlank - - l, _ = c.Next() - if l.err { - return &ParseError{err: "bad AMTRELAY gateway", lex: l} - } - - rr.GatewayAddr, rr.GatewayHost, err = parseAddrHostUnion(l.token, o, rr.GatewayType&0x7f) - if err != nil { - return &ParseError{wrappedErr: fmt.Errorf("AMTRELAY %w", err), lex: l} - } - - return slurpRemainder(c) -} - -// same constants and parsing between IPSECKEY and AMTRELAY -func parseAddrHostUnion(token, o string, gatewayType uint8) (addr net.IP, host string, err error) { - switch gatewayType { - case IPSECGatewayNone: - if token != "." { - return addr, host, errors.New("gateway type none with gateway set") - } - case IPSECGatewayIPv4, IPSECGatewayIPv6: - addr = net.ParseIP(token) - if addr == nil { - return addr, host, errors.New("gateway IP invalid") - } - if (addr.To4() == nil) == (gatewayType == IPSECGatewayIPv4) { - return addr, host, errors.New("gateway IP family mismatch") - } - case IPSECGatewayHost: - var ok bool - host, ok = toAbsoluteName(token, o) - if !ok { - return addr, host, errors.New("invalid gateway host") - } - } - - return addr, host, nil -} - -func (rr *RKEY) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad RKEY Flags", lex: l} - } - rr.Flags = uint16(i) - c.Next() // zBlank - l, _ = c.Next() // zString - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{err: "bad RKEY Protocol", lex: l} - } - rr.Protocol = uint8(i) - c.Next() // zBlank - l, _ = c.Next() // zString - i, e2 := strconv.ParseUint(l.token, 10, 8) - if e2 != nil || l.err { - return &ParseError{err: "bad RKEY Algorithm", lex: l} - } - rr.Algorithm = uint8(i) - s, e3 := endingToString(c, "bad RKEY PublicKey") - if e3 != nil { - return e3 - } - rr.PublicKey = s - return nil -} - -func (rr *EID) parse(c *zlexer, o string) *ParseError { - s, e := endingToString(c, "bad EID Endpoint") - if e != nil { - return e - } - rr.Endpoint = s - return nil -} - -func (rr *NIMLOC) parse(c *zlexer, o string) *ParseError { - s, e := endingToString(c, "bad NIMLOC Locator") - if e != nil { - return e - } - rr.Locator = s - return nil -} - -func (rr *GPOS) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - _, e := strconv.ParseFloat(l.token, 64) - if e != nil || l.err { - return &ParseError{err: "bad GPOS Longitude", lex: l} - } - rr.Longitude = l.token - c.Next() // zBlank - l, _ = c.Next() - _, e1 := strconv.ParseFloat(l.token, 64) - if e1 != nil || l.err { - return &ParseError{err: "bad GPOS Latitude", lex: l} - } - rr.Latitude = l.token - c.Next() // zBlank - l, _ = c.Next() - _, e2 := strconv.ParseFloat(l.token, 64) - if e2 != nil || l.err { - return &ParseError{err: "bad GPOS Altitude", lex: l} - } - rr.Altitude = l.token - return slurpRemainder(c) -} - -func (rr *DS) parseDS(c *zlexer, o, typ string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad " + typ + " KeyTag", lex: l} - } - rr.KeyTag = uint16(i) - c.Next() // zBlank - l, _ = c.Next() - if i, err := strconv.ParseUint(l.token, 10, 8); err != nil { - tokenUpper := strings.ToUpper(l.token) - i, ok := StringToAlgorithm[tokenUpper] - if !ok || l.err { - return &ParseError{err: "bad " + typ + " Algorithm", lex: l} - } - rr.Algorithm = i - } else { - rr.Algorithm = uint8(i) - } - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{err: "bad " + typ + " DigestType", lex: l} - } - rr.DigestType = uint8(i) - s, e2 := endingToString(c, "bad "+typ+" Digest") - if e2 != nil { - return e2 - } - rr.Digest = s - return nil -} - -func (rr *TA) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad TA KeyTag", lex: l} - } - rr.KeyTag = uint16(i) - c.Next() // zBlank - l, _ = c.Next() - if i, err := strconv.ParseUint(l.token, 10, 8); err != nil { - tokenUpper := strings.ToUpper(l.token) - i, ok := StringToAlgorithm[tokenUpper] - if !ok || l.err { - return &ParseError{err: "bad TA Algorithm", lex: l} - } - rr.Algorithm = i - } else { - rr.Algorithm = uint8(i) - } - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{err: "bad TA DigestType", lex: l} - } - rr.DigestType = uint8(i) - s, e2 := endingToString(c, "bad TA Digest") - if e2 != nil { - return e2 - } - rr.Digest = s - return nil -} - -func (rr *TLSA) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{err: "bad TLSA Usage", lex: l} - } - rr.Usage = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{err: "bad TLSA Selector", lex: l} - } - rr.Selector = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e2 := strconv.ParseUint(l.token, 10, 8) - if e2 != nil || l.err { - return &ParseError{err: "bad TLSA MatchingType", lex: l} - } - rr.MatchingType = uint8(i) - // So this needs be e2 (i.e. different than e), because...??t - s, e3 := endingToString(c, "bad TLSA Certificate") - if e3 != nil { - return e3 - } - rr.Certificate = s - return nil -} - -func (rr *SMIMEA) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{err: "bad SMIMEA Usage", lex: l} - } - rr.Usage = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{err: "bad SMIMEA Selector", lex: l} - } - rr.Selector = uint8(i) - c.Next() // zBlank - l, _ = c.Next() - i, e2 := strconv.ParseUint(l.token, 10, 8) - if e2 != nil || l.err { - return &ParseError{err: "bad SMIMEA MatchingType", lex: l} - } - rr.MatchingType = uint8(i) - // So this needs be e2 (i.e. different than e), because...??t - s, e3 := endingToString(c, "bad SMIMEA Certificate") - if e3 != nil { - return e3 - } - rr.Certificate = s - return nil -} - -func (rr *RFC3597) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - if l.token != "\\#" { - return &ParseError{err: "bad RFC3597 Rdata", lex: l} - } - - c.Next() // zBlank - l, _ = c.Next() - rdlength, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad RFC3597 Rdata ", lex: l} - } - - s, e1 := endingToString(c, "bad RFC3597 Rdata") - if e1 != nil { - return e1 - } - if int(rdlength)*2 != len(s) { - return &ParseError{err: "bad RFC3597 Rdata", lex: l} - } - rr.Rdata = s - return nil -} - -func (rr *SPF) parse(c *zlexer, o string) *ParseError { - s, e := endingToTxtSlice(c, "bad SPF Txt") - if e != nil { - return e - } - rr.Txt = s - return nil -} - -func (rr *AVC) parse(c *zlexer, o string) *ParseError { - s, e := endingToTxtSlice(c, "bad AVC Txt") - if e != nil { - return e - } - rr.Txt = s - return nil -} - -func (rr *TXT) parse(c *zlexer, o string) *ParseError { - // no zBlank reading here, because all this rdata is TXT - s, e := endingToTxtSlice(c, "bad TXT Txt") - if e != nil { - return e - } - rr.Txt = s - return nil -} - -// identical to setTXT -func (rr *NINFO) parse(c *zlexer, o string) *ParseError { - s, e := endingToTxtSlice(c, "bad NINFO ZSData") - if e != nil { - return e - } - rr.ZSData = s - return nil -} - -// Uses the same format as TXT -func (rr *RESINFO) parse(c *zlexer, o string) *ParseError { - s, e := endingToTxtSlice(c, "bad RESINFO Resinfo") - if e != nil { - return e - } - rr.Txt = s - return nil -} - -func (rr *URI) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad URI Priority", lex: l} - } - rr.Priority = uint16(i) - c.Next() // zBlank - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 16) - if e1 != nil || l.err { - return &ParseError{err: "bad URI Weight", lex: l} - } - rr.Weight = uint16(i) - - c.Next() // zBlank - s, e2 := endingToTxtSlice(c, "bad URI Target") - if e2 != nil { - return e2 - } - if len(s) != 1 { - return &ParseError{err: "bad URI Target", lex: l} - } - rr.Target = s[0] - return nil -} - -func (rr *DHCID) parse(c *zlexer, o string) *ParseError { - // awesome record to parse! - s, e := endingToString(c, "bad DHCID Digest") - if e != nil { - return e - } - rr.Digest = s - return nil -} - -func (rr *NID) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad NID Preference", lex: l} - } - rr.Preference = uint16(i) - c.Next() // zBlank - l, _ = c.Next() // zString - u, e1 := stringToNodeID(l) - if e1 != nil || l.err { - return e1 - } - rr.NodeID = u - return slurpRemainder(c) -} - -func (rr *L32) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad L32 Preference", lex: l} - } - rr.Preference = uint16(i) - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Locator32 = net.ParseIP(l.token) - if rr.Locator32 == nil || l.err { - return &ParseError{err: "bad L32 Locator", lex: l} - } - return slurpRemainder(c) -} - -func (rr *LP) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad LP Preference", lex: l} - } - rr.Preference = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Fqdn = l.token - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{err: "bad LP Fqdn", lex: l} - } - rr.Fqdn = name - return slurpRemainder(c) -} - -func (rr *L64) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad L64 Preference", lex: l} - } - rr.Preference = uint16(i) - c.Next() // zBlank - l, _ = c.Next() // zString - u, e1 := stringToNodeID(l) - if e1 != nil || l.err { - return e1 - } - rr.Locator64 = u - return slurpRemainder(c) -} - -func (rr *UID) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 32) - if e != nil || l.err { - return &ParseError{err: "bad UID Uid", lex: l} - } - rr.Uid = uint32(i) - return slurpRemainder(c) -} - -func (rr *GID) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 32) - if e != nil || l.err { - return &ParseError{err: "bad GID Gid", lex: l} - } - rr.Gid = uint32(i) - return slurpRemainder(c) -} - -func (rr *UINFO) parse(c *zlexer, o string) *ParseError { - s, e := endingToTxtSlice(c, "bad UINFO Uinfo") - if e != nil { - return e - } - if ln := len(s); ln == 0 { - return nil - } - rr.Uinfo = s[0] // silently discard anything after the first character-string - return nil -} - -func (rr *PX) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{err: "bad PX Preference", lex: l} - } - rr.Preference = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Map822 = l.token - map822, map822Ok := toAbsoluteName(l.token, o) - if l.err || !map822Ok { - return &ParseError{err: "bad PX Map822", lex: l} - } - rr.Map822 = map822 - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Mapx400 = l.token - mapx400, mapx400Ok := toAbsoluteName(l.token, o) - if l.err || !mapx400Ok { - return &ParseError{err: "bad PX Mapx400", lex: l} - } - rr.Mapx400 = mapx400 - return slurpRemainder(c) -} - -func (rr *CAA) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{err: "bad CAA Flag", lex: l} - } - rr.Flag = uint8(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - if l.value != zString { - return &ParseError{err: "bad CAA Tag", lex: l} - } - rr.Tag = l.token - - c.Next() // zBlank - s, e1 := endingToTxtSlice(c, "bad CAA Value") - if e1 != nil { - return e1 - } - if len(s) != 1 { - return &ParseError{err: "bad CAA Value", lex: l} - } - rr.Value = s[0] - return nil -} - -func (rr *TKEY) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - - // Algorithm - if l.value != zString { - return &ParseError{err: "bad TKEY algorithm", lex: l} - } - rr.Algorithm = l.token - c.Next() // zBlank - - // Get the key length and key values - l, _ = c.Next() - i, e := strconv.ParseUint(l.token, 10, 8) - if e != nil || l.err { - return &ParseError{err: "bad TKEY key length", lex: l} - } - rr.KeySize = uint16(i) - c.Next() // zBlank - l, _ = c.Next() - if l.value != zString { - return &ParseError{err: "bad TKEY key", lex: l} - } - rr.Key = l.token - c.Next() // zBlank - - // Get the otherdata length and string data - l, _ = c.Next() - i, e1 := strconv.ParseUint(l.token, 10, 8) - if e1 != nil || l.err { - return &ParseError{err: "bad TKEY otherdata length", lex: l} - } - rr.OtherLen = uint16(i) - c.Next() // zBlank - l, _ = c.Next() - if l.value != zString { - return &ParseError{err: "bad TKEY otherday", lex: l} - } - rr.OtherData = l.token - return nil -} - -func (rr *APL) parse(c *zlexer, o string) *ParseError { - var prefixes []APLPrefix - - for { - l, _ := c.Next() - if l.value == zNewline || l.value == zEOF { - break - } - if l.value == zBlank && prefixes != nil { - continue - } - if l.value != zString { - return &ParseError{err: "unexpected APL field", lex: l} - } - - // Expected format: [!]afi:address/prefix - - colon := strings.IndexByte(l.token, ':') - if colon == -1 { - return &ParseError{err: "missing colon in APL field", lex: l} - } - - family, cidr := l.token[:colon], l.token[colon+1:] - - var negation bool - if family != "" && family[0] == '!' { - negation = true - family = family[1:] - } - - afi, e := strconv.ParseUint(family, 10, 16) - if e != nil { - return &ParseError{wrappedErr: fmt.Errorf("failed to parse APL family: %w", e), lex: l} - } - var addrLen int - switch afi { - case 1: - addrLen = net.IPv4len - case 2: - addrLen = net.IPv6len - default: - return &ParseError{err: "unrecognized APL family", lex: l} - } - - ip, subnet, e1 := net.ParseCIDR(cidr) - if e1 != nil { - return &ParseError{wrappedErr: fmt.Errorf("failed to parse APL address: %w", e1), lex: l} - } - if !ip.Equal(subnet.IP) { - return &ParseError{err: "extra bits in APL address", lex: l} - } - - if len(subnet.IP) != addrLen { - return &ParseError{err: "address mismatch with the APL family", lex: l} - } - - prefixes = append(prefixes, APLPrefix{ - Negation: negation, - Network: *subnet, - }) - } - - rr.Prefixes = prefixes - return nil -} - -// escapedStringOffset finds the offset within a string (which may contain escape -// sequences) that corresponds to a certain byte offset. If the input offset is -// out of bounds, -1 is returned (which is *not* considered an error). -func escapedStringOffset(s string, desiredByteOffset int) (int, bool) { - if desiredByteOffset == 0 { - return 0, true - } - - currentByteOffset, i := 0, 0 - - for i < len(s) { - currentByteOffset += 1 - - // Skip escape sequences - if s[i] != '\\' { - // Single plain byte, not an escape sequence. - i++ - } else if isDDD(s[i+1:]) { - // Skip backslash and DDD. - i += 4 - } else if len(s[i+1:]) < 1 { - // No character following the backslash; that's an error. - return 0, false - } else { - // Skip backslash and following byte. - i += 2 - } - - if currentByteOffset >= desiredByteOffset { - return i, true - } - } - - return -1, true -} diff --git a/vendor/github.com/miekg/dns/serve_mux.go b/vendor/github.com/miekg/dns/serve_mux.go deleted file mode 100644 index e7f36e2218..0000000000 --- a/vendor/github.com/miekg/dns/serve_mux.go +++ /dev/null @@ -1,122 +0,0 @@ -package dns - -import ( - "sync" -) - -// ServeMux is an DNS request multiplexer. It matches the zone name of -// each incoming request against a list of registered patterns add calls -// the handler for the pattern that most closely matches the zone name. -// -// ServeMux is DNSSEC aware, meaning that queries for the DS record are -// redirected to the parent zone (if that is also registered), otherwise -// the child gets the query. -// -// ServeMux is also safe for concurrent access from multiple goroutines. -// -// The zero ServeMux is empty and ready for use. -type ServeMux struct { - z map[string]Handler - m sync.RWMutex -} - -// NewServeMux allocates and returns a new ServeMux. -func NewServeMux() *ServeMux { - return new(ServeMux) -} - -// DefaultServeMux is the default ServeMux used by Serve. -var DefaultServeMux = NewServeMux() - -func (mux *ServeMux) match(q string, t uint16) Handler { - mux.m.RLock() - defer mux.m.RUnlock() - if mux.z == nil { - return nil - } - - q = CanonicalName(q) - - var handler Handler - for off, end := 0, false; !end; off, end = NextLabel(q, off) { - if h, ok := mux.z[q[off:]]; ok { - if t != TypeDS { - return h - } - // Continue for DS to see if we have a parent too, if so delegate to the parent - handler = h - } - } - - // Wildcard match, if we have found nothing try the root zone as a last resort. - if h, ok := mux.z["."]; ok { - return h - } - - return handler -} - -// Handle adds a handler to the ServeMux for pattern. -func (mux *ServeMux) Handle(pattern string, handler Handler) { - if pattern == "" { - panic("dns: invalid pattern " + pattern) - } - mux.m.Lock() - if mux.z == nil { - mux.z = make(map[string]Handler) - } - mux.z[CanonicalName(pattern)] = handler - mux.m.Unlock() -} - -// HandleFunc adds a handler function to the ServeMux for pattern. -func (mux *ServeMux) HandleFunc(pattern string, handler func(ResponseWriter, *Msg)) { - mux.Handle(pattern, HandlerFunc(handler)) -} - -// HandleRemove deregisters the handler specific for pattern from the ServeMux. -func (mux *ServeMux) HandleRemove(pattern string) { - if pattern == "" { - panic("dns: invalid pattern " + pattern) - } - mux.m.Lock() - delete(mux.z, CanonicalName(pattern)) - mux.m.Unlock() -} - -// ServeDNS dispatches the request to the handler whose pattern most -// closely matches the request message. -// -// ServeDNS is DNSSEC aware, meaning that queries for the DS record -// are redirected to the parent zone (if that is also registered), -// otherwise the child gets the query. -// -// If no handler is found, or there is no question, a standard REFUSED -// message is returned -func (mux *ServeMux) ServeDNS(w ResponseWriter, req *Msg) { - var h Handler - if len(req.Question) >= 1 { // allow more than one question - h = mux.match(req.Question[0].Name, req.Question[0].Qtype) - } - - if h != nil { - h.ServeDNS(w, req) - } else { - handleRefused(w, req) - } -} - -// Handle registers the handler with the given pattern -// in the DefaultServeMux. The documentation for -// ServeMux explains how patterns are matched. -func Handle(pattern string, handler Handler) { DefaultServeMux.Handle(pattern, handler) } - -// HandleRemove deregisters the handle with the given pattern -// in the DefaultServeMux. -func HandleRemove(pattern string) { DefaultServeMux.HandleRemove(pattern) } - -// HandleFunc registers the handler function with the given pattern -// in the DefaultServeMux. -func HandleFunc(pattern string, handler func(ResponseWriter, *Msg)) { - DefaultServeMux.HandleFunc(pattern, handler) -} diff --git a/vendor/github.com/miekg/dns/server.go b/vendor/github.com/miekg/dns/server.go deleted file mode 100644 index 50478b3240..0000000000 --- a/vendor/github.com/miekg/dns/server.go +++ /dev/null @@ -1,860 +0,0 @@ -// DNS server implementation. - -package dns - -import ( - "context" - "crypto/tls" - "encoding/binary" - "errors" - "io" - "net" - "strings" - "sync" - "time" -) - -// Default maximum number of TCP queries before we close the socket. -const maxTCPQueries = 128 - -// aLongTimeAgo is a non-zero time, far in the past, used for -// immediate cancellation of network operations. -var aLongTimeAgo = time.Unix(1, 0) - -// Handler is implemented by any value that implements ServeDNS. -type Handler interface { - ServeDNS(w ResponseWriter, r *Msg) -} - -// The HandlerFunc type is an adapter to allow the use of -// ordinary functions as DNS handlers. If f is a function -// with the appropriate signature, HandlerFunc(f) is a -// Handler object that calls f. -type HandlerFunc func(ResponseWriter, *Msg) - -// ServeDNS calls f(w, r). -func (f HandlerFunc) ServeDNS(w ResponseWriter, r *Msg) { - f(w, r) -} - -// A ResponseWriter interface is used by an DNS handler to -// construct an DNS response. -type ResponseWriter interface { - // LocalAddr returns the net.Addr of the server - LocalAddr() net.Addr - // RemoteAddr returns the net.Addr of the client that sent the current request. - RemoteAddr() net.Addr - // WriteMsg writes a reply back to the client. - WriteMsg(*Msg) error - // Write writes a raw buffer back to the client. - Write([]byte) (int, error) - // Close closes the connection. - Close() error - // TsigStatus returns the status of the Tsig. - TsigStatus() error - // TsigTimersOnly sets the tsig timers only boolean. - TsigTimersOnly(bool) - // Hijack lets the caller take over the connection. - // After a call to Hijack(), the DNS package will not do anything with the connection. - Hijack() -} - -// A ConnectionStater interface is used by a DNS Handler to access TLS connection state -// when available. -type ConnectionStater interface { - ConnectionState() *tls.ConnectionState -} - -type response struct { - closed bool // connection has been closed - hijacked bool // connection has been hijacked by handler - tsigTimersOnly bool - tsigStatus error - tsigRequestMAC string - tsigProvider TsigProvider - udp net.PacketConn // i/o connection if UDP was used - tcp net.Conn // i/o connection if TCP was used - udpSession *SessionUDP // oob data to get egress interface right - pcSession net.Addr // address to use when writing to a generic net.PacketConn - writer Writer // writer to output the raw DNS bits -} - -// handleRefused returns a HandlerFunc that returns REFUSED for every request it gets. -func handleRefused(w ResponseWriter, r *Msg) { - m := new(Msg) - m.SetRcode(r, RcodeRefused) - w.WriteMsg(m) -} - -// HandleFailed returns a HandlerFunc that returns SERVFAIL for every request it gets. -// Deprecated: This function is going away. -func HandleFailed(w ResponseWriter, r *Msg) { - m := new(Msg) - m.SetRcode(r, RcodeServerFailure) - // does not matter if this write fails - w.WriteMsg(m) -} - -// ListenAndServe Starts a server on address and network specified Invoke handler -// for incoming queries. -func ListenAndServe(addr string, network string, handler Handler) error { - server := &Server{Addr: addr, Net: network, Handler: handler} - return server.ListenAndServe() -} - -// ListenAndServeTLS acts like http.ListenAndServeTLS, more information in -// http://golang.org/pkg/net/http/#ListenAndServeTLS -func ListenAndServeTLS(addr, certFile, keyFile string, handler Handler) error { - cert, err := tls.LoadX509KeyPair(certFile, keyFile) - if err != nil { - return err - } - - config := tls.Config{ - Certificates: []tls.Certificate{cert}, - } - - server := &Server{ - Addr: addr, - Net: "tcp-tls", - TLSConfig: &config, - Handler: handler, - } - - return server.ListenAndServe() -} - -// ActivateAndServe activates a server with a listener from systemd, -// l and p should not both be non-nil. -// If both l and p are not nil only p will be used. -// Invoke handler for incoming queries. -func ActivateAndServe(l net.Listener, p net.PacketConn, handler Handler) error { - server := &Server{Listener: l, PacketConn: p, Handler: handler} - return server.ActivateAndServe() -} - -// Writer writes raw DNS messages; each call to Write should send an entire message. -type Writer interface { - io.Writer -} - -// Reader reads raw DNS messages; each call to ReadTCP or ReadUDP should return an entire message. -type Reader interface { - // ReadTCP reads a raw message from a TCP connection. Implementations may alter - // connection properties, for example the read-deadline. - ReadTCP(conn net.Conn, timeout time.Duration) ([]byte, error) - // ReadUDP reads a raw message from a UDP connection. Implementations may alter - // connection properties, for example the read-deadline. - ReadUDP(conn *net.UDPConn, timeout time.Duration) ([]byte, *SessionUDP, error) -} - -// PacketConnReader is an optional interface that Readers can implement to support using generic net.PacketConns. -type PacketConnReader interface { - Reader - - // ReadPacketConn reads a raw message from a generic net.PacketConn UDP connection. Implementations may - // alter connection properties, for example the read-deadline. - ReadPacketConn(conn net.PacketConn, timeout time.Duration) ([]byte, net.Addr, error) -} - -// defaultReader is an adapter for the Server struct that implements the Reader and -// PacketConnReader interfaces using the readTCP, readUDP and readPacketConn funcs -// of the embedded Server. -type defaultReader struct { - *Server -} - -var _ PacketConnReader = defaultReader{} - -func (dr defaultReader) ReadTCP(conn net.Conn, timeout time.Duration) ([]byte, error) { - return dr.readTCP(conn, timeout) -} - -func (dr defaultReader) ReadUDP(conn *net.UDPConn, timeout time.Duration) ([]byte, *SessionUDP, error) { - return dr.readUDP(conn, timeout) -} - -func (dr defaultReader) ReadPacketConn(conn net.PacketConn, timeout time.Duration) ([]byte, net.Addr, error) { - return dr.readPacketConn(conn, timeout) -} - -// DecorateReader is a decorator hook for extending or supplanting the functionality of a Reader. -// Implementations should never return a nil Reader. -// Readers should also implement the optional PacketConnReader interface. -// PacketConnReader is required to use a generic net.PacketConn. -type DecorateReader func(Reader) Reader - -// DecorateWriter is a decorator hook for extending or supplanting the functionality of a Writer. -// Implementations should never return a nil Writer. -type DecorateWriter func(Writer) Writer - -// MsgInvalidFunc is a listener hook for observing incoming messages that were discarded -// because they could not be parsed. -// Every message that is read by a Reader will eventually be provided to the Handler, -// rejected (or ignored) by the MsgAcceptFunc, or passed to this function. -type MsgInvalidFunc func(m []byte, err error) - -var DefaultMsgInvalidFunc MsgInvalidFunc = defaultMsgInvalidFunc - -func defaultMsgInvalidFunc(m []byte, err error) {} - -// A Server defines parameters for running an DNS server. -type Server struct { - // Address to listen on, ":dns" if empty. - Addr string - // if "tcp" or "tcp-tls" (DNS over TLS) it will invoke a TCP listener, otherwise an UDP one - Net string - // TCP Listener to use, this is to aid in systemd's socket activation. - Listener net.Listener - // TLS connection configuration - TLSConfig *tls.Config - // UDP "Listener" to use, this is to aid in systemd's socket activation. - PacketConn net.PacketConn - // Handler to invoke, dns.DefaultServeMux if nil. - Handler Handler - // Default buffer size to use to read incoming UDP messages. If not set - // it defaults to MinMsgSize (512 B). - UDPSize int - // The net.Conn.SetReadTimeout value for new connections, defaults to 2 * time.Second. - ReadTimeout time.Duration - // The net.Conn.SetWriteTimeout value for new connections, defaults to 2 * time.Second. - WriteTimeout time.Duration - // TCP idle timeout for multiple queries, if nil, defaults to 8 * time.Second (RFC 5966). - IdleTimeout func() time.Duration - // An implementation of the TsigProvider interface. If defined it replaces TsigSecret and is used for all TSIG operations. - TsigProvider TsigProvider - // Secret(s) for Tsig map[]. The zonename must be in canonical form (lowercase, fqdn, see RFC 4034 Section 6.2). - TsigSecret map[string]string - // If NotifyStartedFunc is set it is called once the server has started listening. - NotifyStartedFunc func() - // DecorateReader is optional, allows customization of the process that reads raw DNS messages. - // The decorated reader must not mutate the data read from the conn. - DecorateReader DecorateReader - // DecorateWriter is optional, allows customization of the process that writes raw DNS messages. - DecorateWriter DecorateWriter - // Maximum number of TCP queries before we close the socket. Default is maxTCPQueries (unlimited if -1). - MaxTCPQueries int - // Whether to set the SO_REUSEPORT socket option, allowing multiple listeners to be bound to a single address. - // It is only supported on certain GOOSes and when using ListenAndServe. - ReusePort bool - // Whether to set the SO_REUSEADDR socket option, allowing multiple listeners to be bound to a single address. - // Crucially this allows binding when an existing server is listening on `0.0.0.0` or `::`. - // It is only supported on certain GOOSes and when using ListenAndServe. - ReuseAddr bool - // AcceptMsgFunc will check the incoming message and will reject it early in the process. - // By default DefaultMsgAcceptFunc will be used. - MsgAcceptFunc MsgAcceptFunc - // MsgInvalidFunc is optional, will be called if a message is received but cannot be parsed. - MsgInvalidFunc MsgInvalidFunc - - // Shutdown handling - lock sync.RWMutex - started bool - shutdown chan struct{} - conns map[net.Conn]struct{} - - // A pool for UDP message buffers. - udpPool sync.Pool -} - -func (srv *Server) tsigProvider() TsigProvider { - if srv.TsigProvider != nil { - return srv.TsigProvider - } - if srv.TsigSecret != nil { - return tsigSecretProvider(srv.TsigSecret) - } - return nil -} - -func (srv *Server) isStarted() bool { - srv.lock.RLock() - started := srv.started - srv.lock.RUnlock() - return started -} - -func makeUDPBuffer(size int) func() interface{} { - return func() interface{} { - return make([]byte, size) - } -} - -func (srv *Server) init() { - srv.shutdown = make(chan struct{}) - srv.conns = make(map[net.Conn]struct{}) - - if srv.UDPSize == 0 { - srv.UDPSize = MinMsgSize - } - if srv.MsgAcceptFunc == nil { - srv.MsgAcceptFunc = DefaultMsgAcceptFunc - } - if srv.MsgInvalidFunc == nil { - srv.MsgInvalidFunc = DefaultMsgInvalidFunc - } - if srv.Handler == nil { - srv.Handler = DefaultServeMux - } - - srv.udpPool.New = makeUDPBuffer(srv.UDPSize) -} - -func unlockOnce(l sync.Locker) func() { - var once sync.Once - return func() { once.Do(l.Unlock) } -} - -// ListenAndServe starts a nameserver on the configured address in *Server. -func (srv *Server) ListenAndServe() error { - unlock := unlockOnce(&srv.lock) - srv.lock.Lock() - defer unlock() - - if srv.started { - return &Error{err: "server already started"} - } - - addr := srv.Addr - if addr == "" { - addr = ":domain" - } - - srv.init() - - switch srv.Net { - case "tcp", "tcp4", "tcp6": - l, err := listenTCP(srv.Net, addr, srv.ReusePort, srv.ReuseAddr) - if err != nil { - return err - } - srv.Listener = l - srv.started = true - unlock() - return srv.serveTCP(l) - case "tcp-tls", "tcp4-tls", "tcp6-tls": - if srv.TLSConfig == nil || (len(srv.TLSConfig.Certificates) == 0 && srv.TLSConfig.GetCertificate == nil) { - return errors.New("neither Certificates nor GetCertificate set in config") - } - network := strings.TrimSuffix(srv.Net, "-tls") - l, err := listenTCP(network, addr, srv.ReusePort, srv.ReuseAddr) - if err != nil { - return err - } - l = tls.NewListener(l, srv.TLSConfig) - srv.Listener = l - srv.started = true - unlock() - return srv.serveTCP(l) - case "udp", "udp4", "udp6": - l, err := listenUDP(srv.Net, addr, srv.ReusePort, srv.ReuseAddr) - if err != nil { - return err - } - u := l.(*net.UDPConn) - if e := setUDPSocketOptions(u); e != nil { - u.Close() - return e - } - srv.PacketConn = l - srv.started = true - unlock() - return srv.serveUDP(u) - } - return &Error{err: "bad network"} -} - -// ActivateAndServe starts a nameserver with the PacketConn or Listener -// configured in *Server. Its main use is to start a server from systemd. -func (srv *Server) ActivateAndServe() error { - unlock := unlockOnce(&srv.lock) - srv.lock.Lock() - defer unlock() - - if srv.started { - return &Error{err: "server already started"} - } - - srv.init() - - if srv.PacketConn != nil { - // Check PacketConn interface's type is valid and value - // is not nil - if t, ok := srv.PacketConn.(*net.UDPConn); ok && t != nil { - if e := setUDPSocketOptions(t); e != nil { - return e - } - } - srv.started = true - unlock() - return srv.serveUDP(srv.PacketConn) - } - if srv.Listener != nil { - srv.started = true - unlock() - return srv.serveTCP(srv.Listener) - } - return &Error{err: "bad listeners"} -} - -// Shutdown shuts down a server. After a call to Shutdown, ListenAndServe and -// ActivateAndServe will return. -func (srv *Server) Shutdown() error { - return srv.ShutdownContext(context.Background()) -} - -// ShutdownContext shuts down a server. After a call to ShutdownContext, -// ListenAndServe and ActivateAndServe will return. -// -// A context.Context may be passed to limit how long to wait for connections -// to terminate. -func (srv *Server) ShutdownContext(ctx context.Context) error { - srv.lock.Lock() - if !srv.started { - srv.lock.Unlock() - return &Error{err: "server not started"} - } - - srv.started = false - - if srv.PacketConn != nil { - srv.PacketConn.SetReadDeadline(aLongTimeAgo) // Unblock reads - } - - if srv.Listener != nil { - srv.Listener.Close() - } - - for rw := range srv.conns { - rw.SetReadDeadline(aLongTimeAgo) // Unblock reads - } - - srv.lock.Unlock() - - if testShutdownNotify != nil { - testShutdownNotify.Broadcast() - } - - var ctxErr error - select { - case <-srv.shutdown: - case <-ctx.Done(): - ctxErr = ctx.Err() - } - - if srv.PacketConn != nil { - srv.PacketConn.Close() - } - - return ctxErr -} - -var testShutdownNotify *sync.Cond - -// getReadTimeout is a helper func to use system timeout if server did not intend to change it. -func (srv *Server) getReadTimeout() time.Duration { - if srv.ReadTimeout != 0 { - return srv.ReadTimeout - } - return dnsTimeout -} - -// serveTCP starts a TCP listener for the server. -func (srv *Server) serveTCP(l net.Listener) error { - defer l.Close() - - if srv.NotifyStartedFunc != nil { - srv.NotifyStartedFunc() - } - - var wg sync.WaitGroup - defer func() { - wg.Wait() - close(srv.shutdown) - }() - - for srv.isStarted() { - rw, err := l.Accept() - if err != nil { - if !srv.isStarted() { - return nil - } - if neterr, ok := err.(net.Error); ok && neterr.Temporary() { - continue - } - return err - } - srv.lock.Lock() - // Track the connection to allow unblocking reads on shutdown. - srv.conns[rw] = struct{}{} - srv.lock.Unlock() - wg.Add(1) - go srv.serveTCPConn(&wg, rw) - } - - return nil -} - -// serveUDP starts a UDP listener for the server. -func (srv *Server) serveUDP(l net.PacketConn) error { - defer l.Close() - - reader := Reader(defaultReader{srv}) - if srv.DecorateReader != nil { - reader = srv.DecorateReader(reader) - } - - lUDP, isUDP := l.(*net.UDPConn) - readerPC, canPacketConn := reader.(PacketConnReader) - if !isUDP && !canPacketConn { - return &Error{err: "PacketConnReader was not implemented on Reader returned from DecorateReader but is required for net.PacketConn"} - } - - if srv.NotifyStartedFunc != nil { - srv.NotifyStartedFunc() - } - - var wg sync.WaitGroup - defer func() { - wg.Wait() - close(srv.shutdown) - }() - - rtimeout := srv.getReadTimeout() - // deadline is not used here - for srv.isStarted() { - var ( - m []byte - sPC net.Addr - sUDP *SessionUDP - err error - ) - if isUDP { - m, sUDP, err = reader.ReadUDP(lUDP, rtimeout) - } else { - m, sPC, err = readerPC.ReadPacketConn(l, rtimeout) - } - if err != nil { - if !srv.isStarted() { - return nil - } - if netErr, ok := err.(net.Error); ok && netErr.Temporary() { - continue - } - return err - } - if len(m) < headerSize { - if cap(m) == srv.UDPSize { - srv.udpPool.Put(m[:srv.UDPSize]) - } - srv.MsgInvalidFunc(m, ErrShortRead) - continue - } - wg.Add(1) - go srv.serveUDPPacket(&wg, m, l, sUDP, sPC) - } - - return nil -} - -// Serve a new TCP connection. -func (srv *Server) serveTCPConn(wg *sync.WaitGroup, rw net.Conn) { - w := &response{tsigProvider: srv.tsigProvider(), tcp: rw} - if srv.DecorateWriter != nil { - w.writer = srv.DecorateWriter(w) - } else { - w.writer = w - } - - reader := Reader(defaultReader{srv}) - if srv.DecorateReader != nil { - reader = srv.DecorateReader(reader) - } - - idleTimeout := tcpIdleTimeout - if srv.IdleTimeout != nil { - idleTimeout = srv.IdleTimeout() - } - - timeout := srv.getReadTimeout() - - limit := srv.MaxTCPQueries - if limit == 0 { - limit = maxTCPQueries - } - - for q := 0; (q < limit || limit == -1) && srv.isStarted(); q++ { - m, err := reader.ReadTCP(w.tcp, timeout) - if err != nil { - // TODO(tmthrgd): handle error - break - } - srv.serveDNS(m, w) - if w.closed { - break // Close() was called - } - if w.hijacked { - break // client will call Close() themselves - } - // The first read uses the read timeout, the rest use the - // idle timeout. - timeout = idleTimeout - } - - if !w.hijacked { - w.Close() - } - - srv.lock.Lock() - delete(srv.conns, w.tcp) - srv.lock.Unlock() - - wg.Done() -} - -// Serve a new UDP request. -func (srv *Server) serveUDPPacket(wg *sync.WaitGroup, m []byte, u net.PacketConn, udpSession *SessionUDP, pcSession net.Addr) { - w := &response{tsigProvider: srv.tsigProvider(), udp: u, udpSession: udpSession, pcSession: pcSession} - if srv.DecorateWriter != nil { - w.writer = srv.DecorateWriter(w) - } else { - w.writer = w - } - - srv.serveDNS(m, w) - wg.Done() -} - -func (srv *Server) serveDNS(m []byte, w *response) { - dh, off, err := unpackMsgHdr(m, 0) - if err != nil { - srv.MsgInvalidFunc(m, err) - // Let client hang, they are sending crap; any reply can be used to amplify. - return - } - - req := new(Msg) - req.setHdr(dh) - - switch action := srv.MsgAcceptFunc(dh); action { - case MsgAccept: - err := req.unpack(dh, m, off) - if err == nil { - break - } - - srv.MsgInvalidFunc(m, err) - fallthrough - case MsgReject, MsgRejectNotImplemented: - opcode := req.Opcode - req.SetRcodeFormatError(req) - req.Zero = false - if action == MsgRejectNotImplemented { - req.Opcode = opcode - req.Rcode = RcodeNotImplemented - } - - // Are we allowed to delete any OPT records here? - req.Ns, req.Answer, req.Extra = nil, nil, nil - - w.WriteMsg(req) - fallthrough - case MsgIgnore: - if w.udp != nil && cap(m) == srv.UDPSize { - srv.udpPool.Put(m[:srv.UDPSize]) - } - - return - } - - w.tsigStatus = nil - if w.tsigProvider != nil { - if t := req.IsTsig(); t != nil { - w.tsigStatus = TsigVerifyWithProvider(m, w.tsigProvider, "", false) - w.tsigTimersOnly = false - w.tsigRequestMAC = t.MAC - } - } - - if w.udp != nil && cap(m) == srv.UDPSize { - srv.udpPool.Put(m[:srv.UDPSize]) - } - - srv.Handler.ServeDNS(w, req) // Writes back to the client -} - -func (srv *Server) readTCP(conn net.Conn, timeout time.Duration) ([]byte, error) { - // If we race with ShutdownContext, the read deadline may - // have been set in the distant past to unblock the read - // below. We must not override it, otherwise we may block - // ShutdownContext. - srv.lock.RLock() - if srv.started { - conn.SetReadDeadline(time.Now().Add(timeout)) - } - srv.lock.RUnlock() - - var length uint16 - if err := binary.Read(conn, binary.BigEndian, &length); err != nil { - return nil, err - } - - m := make([]byte, length) - if _, err := io.ReadFull(conn, m); err != nil { - return nil, err - } - - return m, nil -} - -func (srv *Server) readUDP(conn *net.UDPConn, timeout time.Duration) ([]byte, *SessionUDP, error) { - srv.lock.RLock() - if srv.started { - // See the comment in readTCP above. - conn.SetReadDeadline(time.Now().Add(timeout)) - } - srv.lock.RUnlock() - - m := srv.udpPool.Get().([]byte) - n, s, err := ReadFromSessionUDP(conn, m) - if err != nil { - srv.udpPool.Put(m) - return nil, nil, err - } - m = m[:n] - return m, s, nil -} - -func (srv *Server) readPacketConn(conn net.PacketConn, timeout time.Duration) ([]byte, net.Addr, error) { - srv.lock.RLock() - if srv.started { - // See the comment in readTCP above. - conn.SetReadDeadline(time.Now().Add(timeout)) - } - srv.lock.RUnlock() - - m := srv.udpPool.Get().([]byte) - n, addr, err := conn.ReadFrom(m) - if err != nil { - srv.udpPool.Put(m) - return nil, nil, err - } - m = m[:n] - return m, addr, nil -} - -// WriteMsg implements the ResponseWriter.WriteMsg method. -func (w *response) WriteMsg(m *Msg) (err error) { - if w.closed { - return &Error{err: "WriteMsg called after Close"} - } - - var data []byte - if w.tsigProvider != nil { // if no provider, dont check for the tsig (which is a longer check) - if t := m.IsTsig(); t != nil { - data, w.tsigRequestMAC, err = TsigGenerateWithProvider(m, w.tsigProvider, w.tsigRequestMAC, w.tsigTimersOnly) - if err != nil { - return err - } - _, err = w.writer.Write(data) - return err - } - } - data, err = m.Pack() - if err != nil { - return err - } - _, err = w.writer.Write(data) - return err -} - -// Write implements the ResponseWriter.Write method. -func (w *response) Write(m []byte) (int, error) { - if w.closed { - return 0, &Error{err: "Write called after Close"} - } - - switch { - case w.udp != nil: - if u, ok := w.udp.(*net.UDPConn); ok { - return WriteToSessionUDP(u, m, w.udpSession) - } - return w.udp.WriteTo(m, w.pcSession) - case w.tcp != nil: - if len(m) > MaxMsgSize { - return 0, &Error{err: "message too large"} - } - - msg := make([]byte, 2+len(m)) - binary.BigEndian.PutUint16(msg, uint16(len(m))) - copy(msg[2:], m) - return w.tcp.Write(msg) - default: - panic("dns: internal error: udp and tcp both nil") - } -} - -// LocalAddr implements the ResponseWriter.LocalAddr method. -func (w *response) LocalAddr() net.Addr { - switch { - case w.udp != nil: - return w.udp.LocalAddr() - case w.tcp != nil: - return w.tcp.LocalAddr() - default: - panic("dns: internal error: udp and tcp both nil") - } -} - -// RemoteAddr implements the ResponseWriter.RemoteAddr method. -func (w *response) RemoteAddr() net.Addr { - switch { - case w.udpSession != nil: - return w.udpSession.RemoteAddr() - case w.pcSession != nil: - return w.pcSession - case w.tcp != nil: - return w.tcp.RemoteAddr() - default: - panic("dns: internal error: udpSession, pcSession and tcp are all nil") - } -} - -// TsigStatus implements the ResponseWriter.TsigStatus method. -func (w *response) TsigStatus() error { return w.tsigStatus } - -// TsigTimersOnly implements the ResponseWriter.TsigTimersOnly method. -func (w *response) TsigTimersOnly(b bool) { w.tsigTimersOnly = b } - -// Hijack implements the ResponseWriter.Hijack method. -func (w *response) Hijack() { w.hijacked = true } - -// Close implements the ResponseWriter.Close method -func (w *response) Close() error { - if w.closed { - return &Error{err: "connection already closed"} - } - w.closed = true - - switch { - case w.udp != nil: - // Can't close the udp conn, as that is actually the listener. - return nil - case w.tcp != nil: - return w.tcp.Close() - default: - panic("dns: internal error: udp and tcp both nil") - } -} - -// ConnectionState() implements the ConnectionStater.ConnectionState() interface. -func (w *response) ConnectionState() *tls.ConnectionState { - type tlsConnectionStater interface { - ConnectionState() tls.ConnectionState - } - if v, ok := w.tcp.(tlsConnectionStater); ok { - t := v.ConnectionState() - return &t - } - return nil -} diff --git a/vendor/github.com/miekg/dns/sig0.go b/vendor/github.com/miekg/dns/sig0.go deleted file mode 100644 index 057bb57873..0000000000 --- a/vendor/github.com/miekg/dns/sig0.go +++ /dev/null @@ -1,193 +0,0 @@ -package dns - -import ( - "crypto" - "crypto/ecdsa" - "crypto/ed25519" - "crypto/rsa" - "encoding/binary" - "math/big" - "time" -) - -// Sign signs a dns.Msg. It fills the signature with the appropriate data. -// The SIG record should have the SignerName, KeyTag, Algorithm, Inception -// and Expiration set. -func (rr *SIG) Sign(k crypto.Signer, m *Msg) ([]byte, error) { - if k == nil { - return nil, ErrPrivKey - } - if rr.KeyTag == 0 || rr.SignerName == "" || rr.Algorithm == 0 { - return nil, ErrKey - } - - rr.Hdr = RR_Header{Name: ".", Rrtype: TypeSIG, Class: ClassANY, Ttl: 0} - rr.OrigTtl, rr.TypeCovered, rr.Labels = 0, 0, 0 - - buf := make([]byte, m.Len()+Len(rr)) - mbuf, err := m.PackBuffer(buf) - if err != nil { - return nil, err - } - if &buf[0] != &mbuf[0] { - return nil, ErrBuf - } - off, err := PackRR(rr, buf, len(mbuf), nil, false) - if err != nil { - return nil, err - } - buf = buf[:off:cap(buf)] - - h, cryptohash, err := hashFromAlgorithm(rr.Algorithm) - if err != nil { - return nil, err - } - - // Write SIG rdata - h.Write(buf[len(mbuf)+1+2+2+4+2:]) - // Write message - h.Write(buf[:len(mbuf)]) - - signature, err := sign(k, h.Sum(nil), cryptohash, rr.Algorithm) - if err != nil { - return nil, err - } - - rr.Signature = toBase64(signature) - - buf = append(buf, signature...) - if len(buf) > int(^uint16(0)) { - return nil, ErrBuf - } - // Adjust sig data length - rdoff := len(mbuf) + 1 + 2 + 2 + 4 - rdlen := binary.BigEndian.Uint16(buf[rdoff:]) - rdlen += uint16(len(signature)) - binary.BigEndian.PutUint16(buf[rdoff:], rdlen) - // Adjust additional count - adc := binary.BigEndian.Uint16(buf[10:]) - adc++ - binary.BigEndian.PutUint16(buf[10:], adc) - return buf, nil -} - -// Verify validates the message buf using the key k. -// It's assumed that buf is a valid message from which rr was unpacked. -func (rr *SIG) Verify(k *KEY, buf []byte) error { - if k == nil { - return ErrKey - } - if rr.KeyTag == 0 || rr.SignerName == "" || rr.Algorithm == 0 { - return ErrKey - } - - h, cryptohash, err := hashFromAlgorithm(rr.Algorithm) - if err != nil { - return err - } - - buflen := len(buf) - qdc := binary.BigEndian.Uint16(buf[4:]) - anc := binary.BigEndian.Uint16(buf[6:]) - auc := binary.BigEndian.Uint16(buf[8:]) - adc := binary.BigEndian.Uint16(buf[10:]) - offset := headerSize - for i := uint16(0); i < qdc && offset < buflen; i++ { - _, offset, err = UnpackDomainName(buf, offset) - if err != nil { - return err - } - // Skip past Type and Class - offset += 2 + 2 - } - for i := uint16(1); i < anc+auc+adc && offset < buflen; i++ { - _, offset, err = UnpackDomainName(buf, offset) - if err != nil { - return err - } - // Skip past Type, Class and TTL - offset += 2 + 2 + 4 - if offset+1 >= buflen { - continue - } - rdlen := binary.BigEndian.Uint16(buf[offset:]) - offset += 2 - offset += int(rdlen) - } - if offset >= buflen { - return &Error{err: "overflowing unpacking signed message"} - } - - // offset should be just prior to SIG - bodyend := offset - // owner name SHOULD be root - _, offset, err = UnpackDomainName(buf, offset) - if err != nil { - return err - } - // Skip Type, Class, TTL, RDLen - offset += 2 + 2 + 4 + 2 - sigstart := offset - // Skip Type Covered, Algorithm, Labels, Original TTL - offset += 2 + 1 + 1 + 4 - if offset+4+4 >= buflen { - return &Error{err: "overflow unpacking signed message"} - } - expire := binary.BigEndian.Uint32(buf[offset:]) - offset += 4 - incept := binary.BigEndian.Uint32(buf[offset:]) - offset += 4 - now := uint32(time.Now().Unix()) - if now < incept || now > expire { - return ErrTime - } - // Skip key tag - offset += 2 - var signername string - signername, offset, err = UnpackDomainName(buf, offset) - if err != nil { - return err - } - // If key has come from the DNS name compression might - // have mangled the case of the name - if !equal(signername, k.Header().Name) { - return &Error{err: "signer name doesn't match key name"} - } - sigend := offset - h.Write(buf[sigstart:sigend]) - h.Write(buf[:10]) - h.Write([]byte{ - byte((adc - 1) << 8), - byte(adc - 1), - }) - h.Write(buf[12:bodyend]) - - hashed := h.Sum(nil) - sig := buf[sigend:] - switch k.Algorithm { - case RSASHA1, RSASHA256, RSASHA512: - pk := k.publicKeyRSA() - if pk != nil { - return rsa.VerifyPKCS1v15(pk, cryptohash, hashed, sig) - } - case ECDSAP256SHA256, ECDSAP384SHA384: - pk := k.publicKeyECDSA() - r := new(big.Int).SetBytes(sig[:len(sig)/2]) - s := new(big.Int).SetBytes(sig[len(sig)/2:]) - if pk != nil { - if ecdsa.Verify(pk, hashed, r, s) { - return nil - } - return ErrSig - } - case ED25519: - pk := k.publicKeyED25519() - if pk != nil { - if ed25519.Verify(pk, hashed, sig) { - return nil - } - return ErrSig - } - } - return ErrKeyAlg -} diff --git a/vendor/github.com/miekg/dns/smimea.go b/vendor/github.com/miekg/dns/smimea.go deleted file mode 100644 index 89f09f0d10..0000000000 --- a/vendor/github.com/miekg/dns/smimea.go +++ /dev/null @@ -1,44 +0,0 @@ -package dns - -import ( - "crypto/sha256" - "crypto/x509" - "encoding/hex" -) - -// Sign creates a SMIMEA record from an SSL certificate. -func (r *SMIMEA) Sign(usage, selector, matchingType int, cert *x509.Certificate) (err error) { - r.Hdr.Rrtype = TypeSMIMEA - r.Usage = uint8(usage) - r.Selector = uint8(selector) - r.MatchingType = uint8(matchingType) - - r.Certificate, err = CertificateToDANE(r.Selector, r.MatchingType, cert) - return err -} - -// Verify verifies a SMIMEA record against an SSL certificate. If it is OK -// a nil error is returned. -func (r *SMIMEA) Verify(cert *x509.Certificate) error { - c, err := CertificateToDANE(r.Selector, r.MatchingType, cert) - if err != nil { - return err // Not also ErrSig? - } - if r.Certificate == c { - return nil - } - return ErrSig // ErrSig, really? -} - -// SMIMEAName returns the ownername of a SMIMEA resource record as per the -// format specified in RFC 'draft-ietf-dane-smime-12' Section 2 and 3 -func SMIMEAName(email, domain string) (string, error) { - hasher := sha256.New() - hasher.Write([]byte(email)) - - // RFC Section 3: "The local-part is hashed using the SHA2-256 - // algorithm with the hash truncated to 28 octets and - // represented in its hexadecimal representation to become the - // left-most label in the prepared domain name" - return hex.EncodeToString(hasher.Sum(nil)[:28]) + "." + "_smimecert." + domain, nil -} diff --git a/vendor/github.com/miekg/dns/svcb.go b/vendor/github.com/miekg/dns/svcb.go deleted file mode 100644 index 598103c10c..0000000000 --- a/vendor/github.com/miekg/dns/svcb.go +++ /dev/null @@ -1,969 +0,0 @@ -package dns - -import ( - "bytes" - "encoding/binary" - "errors" - "fmt" - "net" - "sort" - "strconv" - "strings" -) - -// SVCBKey is the type of the keys used in the SVCB RR. -type SVCBKey uint16 - -// Keys defined in rfc9460 -const ( - SVCB_MANDATORY SVCBKey = iota - SVCB_ALPN - SVCB_NO_DEFAULT_ALPN - SVCB_PORT - SVCB_IPV4HINT - SVCB_ECHCONFIG - SVCB_IPV6HINT - SVCB_DOHPATH // rfc9461 Section 5 - SVCB_OHTTP // rfc9540 Section 8 - - svcb_RESERVED SVCBKey = 65535 -) - -var svcbKeyToStringMap = map[SVCBKey]string{ - SVCB_MANDATORY: "mandatory", - SVCB_ALPN: "alpn", - SVCB_NO_DEFAULT_ALPN: "no-default-alpn", - SVCB_PORT: "port", - SVCB_IPV4HINT: "ipv4hint", - SVCB_ECHCONFIG: "ech", - SVCB_IPV6HINT: "ipv6hint", - SVCB_DOHPATH: "dohpath", - SVCB_OHTTP: "ohttp", -} - -var svcbStringToKeyMap = reverseSVCBKeyMap(svcbKeyToStringMap) - -func reverseSVCBKeyMap(m map[SVCBKey]string) map[string]SVCBKey { - n := make(map[string]SVCBKey, len(m)) - for u, s := range m { - n[s] = u - } - return n -} - -// String takes the numerical code of an SVCB key and returns its name. -// Returns an empty string for reserved keys. -// Accepts unassigned keys as well as experimental/private keys. -func (key SVCBKey) String() string { - if x := svcbKeyToStringMap[key]; x != "" { - return x - } - if key == svcb_RESERVED { - return "" - } - return "key" + strconv.FormatUint(uint64(key), 10) -} - -// svcbStringToKey returns the numerical code of an SVCB key. -// Returns svcb_RESERVED for reserved/invalid keys. -// Accepts unassigned keys as well as experimental/private keys. -func svcbStringToKey(s string) SVCBKey { - if strings.HasPrefix(s, "key") { - a, err := strconv.ParseUint(s[3:], 10, 16) - // no leading zeros - // key shouldn't be registered - if err != nil || a == 65535 || s[3] == '0' || svcbKeyToStringMap[SVCBKey(a)] != "" { - return svcb_RESERVED - } - return SVCBKey(a) - } - if key, ok := svcbStringToKeyMap[s]; ok { - return key - } - return svcb_RESERVED -} - -func (rr *SVCB) parse(c *zlexer, o string) *ParseError { - l, _ := c.Next() - i, e := strconv.ParseUint(l.token, 10, 16) - if e != nil || l.err { - return &ParseError{file: l.token, err: "bad SVCB priority", lex: l} - } - rr.Priority = uint16(i) - - c.Next() // zBlank - l, _ = c.Next() // zString - rr.Target = l.token - - name, nameOk := toAbsoluteName(l.token, o) - if l.err || !nameOk { - return &ParseError{file: l.token, err: "bad SVCB Target", lex: l} - } - rr.Target = name - - // Values (if any) - l, _ = c.Next() - var xs []SVCBKeyValue - // Helps require whitespace between pairs. - // Prevents key1000="a"key1001=... - canHaveNextKey := true - for l.value != zNewline && l.value != zEOF { - switch l.value { - case zString: - if !canHaveNextKey { - // The key we can now read was probably meant to be - // a part of the last value. - return &ParseError{file: l.token, err: "bad SVCB value quotation", lex: l} - } - - // In key=value pairs, value does not have to be quoted unless value - // contains whitespace. And keys don't need to have values. - // Similarly, keys with an equality signs after them don't need values. - // l.token includes at least up to the first equality sign. - idx := strings.IndexByte(l.token, '=') - var key, value string - if idx < 0 { - // Key with no value and no equality sign - key = l.token - } else if idx == 0 { - return &ParseError{file: l.token, err: "bad SVCB key", lex: l} - } else { - key, value = l.token[:idx], l.token[idx+1:] - - if value == "" { - // We have a key and an equality sign. Maybe we have nothing - // after "=" or we have a double quote. - l, _ = c.Next() - if l.value == zQuote { - // Only needed when value ends with double quotes. - // Any value starting with zQuote ends with it. - canHaveNextKey = false - - l, _ = c.Next() - switch l.value { - case zString: - // We have a value in double quotes. - value = l.token - l, _ = c.Next() - if l.value != zQuote { - return &ParseError{file: l.token, err: "SVCB unterminated value", lex: l} - } - case zQuote: - // There's nothing in double quotes. - default: - return &ParseError{file: l.token, err: "bad SVCB value", lex: l} - } - } - } - } - kv := makeSVCBKeyValue(svcbStringToKey(key)) - if kv == nil { - return &ParseError{file: l.token, err: "bad SVCB key", lex: l} - } - if err := kv.parse(value); err != nil { - return &ParseError{file: l.token, wrappedErr: err, lex: l} - } - xs = append(xs, kv) - case zQuote: - return &ParseError{file: l.token, err: "SVCB key can't contain double quotes", lex: l} - case zBlank: - canHaveNextKey = true - default: - return &ParseError{file: l.token, err: "bad SVCB values", lex: l} - } - l, _ = c.Next() - } - - // "In AliasMode, records SHOULD NOT include any SvcParams, and recipients MUST - // ignore any SvcParams that are present." - // However, we don't check rr.Priority == 0 && len(xs) > 0 here - // It is the responsibility of the user of the library to check this. - // This is to encourage the fixing of the source of this error. - - rr.Value = xs - return nil -} - -// makeSVCBKeyValue returns an SVCBKeyValue struct with the key or nil for reserved keys. -func makeSVCBKeyValue(key SVCBKey) SVCBKeyValue { - switch key { - case SVCB_MANDATORY: - return new(SVCBMandatory) - case SVCB_ALPN: - return new(SVCBAlpn) - case SVCB_NO_DEFAULT_ALPN: - return new(SVCBNoDefaultAlpn) - case SVCB_PORT: - return new(SVCBPort) - case SVCB_IPV4HINT: - return new(SVCBIPv4Hint) - case SVCB_ECHCONFIG: - return new(SVCBECHConfig) - case SVCB_IPV6HINT: - return new(SVCBIPv6Hint) - case SVCB_DOHPATH: - return new(SVCBDoHPath) - case SVCB_OHTTP: - return new(SVCBOhttp) - case svcb_RESERVED: - return nil - default: - e := new(SVCBLocal) - e.KeyCode = key - return e - } -} - -// SVCB RR. See RFC 9460. -type SVCB struct { - Hdr RR_Header - Priority uint16 // If zero, Value must be empty or discarded by the user of this library - Target string `dns:"domain-name"` - Value []SVCBKeyValue `dns:"pairs"` -} - -// HTTPS RR. See RFC 9460. Everything valid for SVCB applies to HTTPS as well. -// Except that the HTTPS record is intended for use with the HTTP and HTTPS protocols. -type HTTPS struct { - SVCB -} - -func (rr *HTTPS) String() string { - return rr.SVCB.String() -} - -func (rr *HTTPS) parse(c *zlexer, o string) *ParseError { - return rr.SVCB.parse(c, o) -} - -// SVCBKeyValue defines a key=value pair for the SVCB RR type. -// An SVCB RR can have multiple SVCBKeyValues appended to it. -type SVCBKeyValue interface { - Key() SVCBKey // Key returns the numerical key code. - pack() ([]byte, error) // pack returns the encoded value. - unpack([]byte) error // unpack sets the value. - String() string // String returns the string representation of the value. - parse(string) error // parse sets the value to the given string representation of the value. - copy() SVCBKeyValue // copy returns a deep-copy of the pair. - len() int // len returns the length of value in the wire format. -} - -// SVCBMandatory pair adds to required keys that must be interpreted for the RR -// to be functional. If ignored, the whole RRSet must be ignored. -// "port" and "no-default-alpn" are mandatory by default if present, -// so they shouldn't be included here. -// -// It is incumbent upon the user of this library to reject the RRSet if -// or avoid constructing such an RRSet that: -// - "mandatory" is included as one of the keys of mandatory -// - no key is listed multiple times in mandatory -// - all keys listed in mandatory are present -// - escape sequences are not used in mandatory -// - mandatory, when present, lists at least one key -// -// Basic use pattern for creating a mandatory option: -// -// s := &dns.SVCB{Hdr: dns.RR_Header{Name: ".", Rrtype: dns.TypeSVCB, Class: dns.ClassINET}} -// e := new(dns.SVCBMandatory) -// e.Code = []uint16{dns.SVCB_ALPN} -// s.Value = append(s.Value, e) -// t := new(dns.SVCBAlpn) -// t.Alpn = []string{"xmpp-client"} -// s.Value = append(s.Value, t) -type SVCBMandatory struct { - Code []SVCBKey -} - -func (*SVCBMandatory) Key() SVCBKey { return SVCB_MANDATORY } - -func (s *SVCBMandatory) String() string { - str := make([]string, len(s.Code)) - for i, e := range s.Code { - str[i] = e.String() - } - return strings.Join(str, ",") -} - -func (s *SVCBMandatory) pack() ([]byte, error) { - codes := cloneSlice(s.Code) - sort.Slice(codes, func(i, j int) bool { - return codes[i] < codes[j] - }) - b := make([]byte, 2*len(codes)) - for i, e := range codes { - binary.BigEndian.PutUint16(b[2*i:], uint16(e)) - } - return b, nil -} - -func (s *SVCBMandatory) unpack(b []byte) error { - if len(b)%2 != 0 { - return errors.New("bad svcbmandatory: value length is not a multiple of 2") - } - codes := make([]SVCBKey, 0, len(b)/2) - for i := 0; i < len(b); i += 2 { - // We assume strictly increasing order. - codes = append(codes, SVCBKey(binary.BigEndian.Uint16(b[i:]))) - } - s.Code = codes - return nil -} - -func (s *SVCBMandatory) parse(b string) error { - codes := make([]SVCBKey, 0, strings.Count(b, ",")+1) - for len(b) > 0 { - var key string - key, b, _ = strings.Cut(b, ",") - codes = append(codes, svcbStringToKey(key)) - } - s.Code = codes - return nil -} - -func (s *SVCBMandatory) len() int { - return 2 * len(s.Code) -} - -func (s *SVCBMandatory) copy() SVCBKeyValue { - return &SVCBMandatory{cloneSlice(s.Code)} -} - -// SVCBAlpn pair is used to list supported connection protocols. -// The user of this library must ensure that at least one protocol is listed when alpn is present. -// Protocol IDs can be found at: -// https://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml#alpn-protocol-ids -// Basic use pattern for creating an alpn option: -// -// h := new(dns.HTTPS) -// h.Hdr = dns.RR_Header{Name: ".", Rrtype: dns.TypeHTTPS, Class: dns.ClassINET} -// e := new(dns.SVCBAlpn) -// e.Alpn = []string{"h2", "http/1.1"} -// h.Value = append(h.Value, e) -type SVCBAlpn struct { - Alpn []string -} - -func (*SVCBAlpn) Key() SVCBKey { return SVCB_ALPN } - -func (s *SVCBAlpn) String() string { - // An ALPN value is a comma-separated list of values, each of which can be - // an arbitrary binary value. In order to allow parsing, the comma and - // backslash characters are themselves escaped. - // - // However, this escaping is done in addition to the normal escaping which - // happens in zone files, meaning that these values must be - // double-escaped. This looks terrible, so if you see a never-ending - // sequence of backslash in a zone file this may be why. - // - // https://datatracker.ietf.org/doc/html/draft-ietf-dnsop-svcb-https-08#appendix-A.1 - var str strings.Builder - for i, alpn := range s.Alpn { - // 4*len(alpn) is the worst case where we escape every character in the alpn as \123, plus 1 byte for the ',' separating the alpn from others - str.Grow(4*len(alpn) + 1) - if i > 0 { - str.WriteByte(',') - } - for j := 0; j < len(alpn); j++ { - e := alpn[j] - if ' ' > e || e > '~' { - str.WriteString(escapeByte(e)) - continue - } - switch e { - // We escape a few characters which may confuse humans or parsers. - case '"', ';', ' ': - str.WriteByte('\\') - str.WriteByte(e) - // The comma and backslash characters themselves must be - // doubly-escaped. We use `\\` for the first backslash and - // the escaped numeric value for the other value. We especially - // don't want a comma in the output. - case ',': - str.WriteString(`\\\044`) - case '\\': - str.WriteString(`\\\092`) - default: - str.WriteByte(e) - } - } - } - return str.String() -} - -func (s *SVCBAlpn) pack() ([]byte, error) { - // Liberally estimate the size of an alpn as 10 octets - b := make([]byte, 0, 10*len(s.Alpn)) - for _, e := range s.Alpn { - if e == "" { - return nil, errors.New("bad svcbalpn: empty alpn-id") - } - if len(e) > 255 { - return nil, errors.New("bad svcbalpn: alpn-id too long") - } - b = append(b, byte(len(e))) - b = append(b, e...) - } - return b, nil -} - -func (s *SVCBAlpn) unpack(b []byte) error { - // Estimate the size of the smallest alpn as 4 bytes - alpn := make([]string, 0, len(b)/4) - for i := 0; i < len(b); { - length := int(b[i]) - i++ - if i+length > len(b) { - return errors.New("bad svcbalpn: alpn array overflowing") - } - alpn = append(alpn, string(b[i:i+length])) - i += length - } - s.Alpn = alpn - return nil -} - -func (s *SVCBAlpn) parse(b string) error { - if len(b) == 0 { - s.Alpn = []string{} - return nil - } - - alpn := []string{} - a := []byte{} - for p := 0; p < len(b); { - c, q := nextByte(b, p) - if q == 0 { - return errors.New("bad svcbalpn: unterminated escape") - } - p += q - // If we find a comma, we have finished reading an alpn. - if c == ',' { - if len(a) == 0 { - return errors.New("bad svcbalpn: empty protocol identifier") - } - alpn = append(alpn, string(a)) - a = []byte{} - continue - } - // If it's a backslash, we need to handle a comma-separated list. - if c == '\\' { - dc, dq := nextByte(b, p) - if dq == 0 { - return errors.New("bad svcbalpn: unterminated escape decoding comma-separated list") - } - if dc != '\\' && dc != ',' { - return errors.New("bad svcbalpn: bad escaped character decoding comma-separated list") - } - p += dq - c = dc - } - a = append(a, c) - } - // Add the final alpn. - if len(a) == 0 { - return errors.New("bad svcbalpn: last protocol identifier empty") - } - s.Alpn = append(alpn, string(a)) - return nil -} - -func (s *SVCBAlpn) len() int { - var l int - for _, e := range s.Alpn { - l += 1 + len(e) - } - return l -} - -func (s *SVCBAlpn) copy() SVCBKeyValue { - return &SVCBAlpn{cloneSlice(s.Alpn)} -} - -// SVCBNoDefaultAlpn pair signifies no support for default connection protocols. -// Should be used in conjunction with alpn. -// Basic use pattern for creating a no-default-alpn option: -// -// s := &dns.SVCB{Hdr: dns.RR_Header{Name: ".", Rrtype: dns.TypeSVCB, Class: dns.ClassINET}} -// t := new(dns.SVCBAlpn) -// t.Alpn = []string{"xmpp-client"} -// s.Value = append(s.Value, t) -// e := new(dns.SVCBNoDefaultAlpn) -// s.Value = append(s.Value, e) -type SVCBNoDefaultAlpn struct{} - -func (*SVCBNoDefaultAlpn) Key() SVCBKey { return SVCB_NO_DEFAULT_ALPN } -func (*SVCBNoDefaultAlpn) copy() SVCBKeyValue { return &SVCBNoDefaultAlpn{} } -func (*SVCBNoDefaultAlpn) pack() ([]byte, error) { return []byte{}, nil } -func (*SVCBNoDefaultAlpn) String() string { return "" } -func (*SVCBNoDefaultAlpn) len() int { return 0 } - -func (*SVCBNoDefaultAlpn) unpack(b []byte) error { - if len(b) != 0 { - return errors.New("bad svcbnodefaultalpn: no-default-alpn must have no value") - } - return nil -} - -func (*SVCBNoDefaultAlpn) parse(b string) error { - if b != "" { - return errors.New("bad svcbnodefaultalpn: no-default-alpn must have no value") - } - return nil -} - -// SVCBPort pair defines the port for connection. -// Basic use pattern for creating a port option: -// -// s := &dns.SVCB{Hdr: dns.RR_Header{Name: ".", Rrtype: dns.TypeSVCB, Class: dns.ClassINET}} -// e := new(dns.SVCBPort) -// e.Port = 80 -// s.Value = append(s.Value, e) -type SVCBPort struct { - Port uint16 -} - -func (*SVCBPort) Key() SVCBKey { return SVCB_PORT } -func (*SVCBPort) len() int { return 2 } -func (s *SVCBPort) String() string { return strconv.FormatUint(uint64(s.Port), 10) } -func (s *SVCBPort) copy() SVCBKeyValue { return &SVCBPort{s.Port} } - -func (s *SVCBPort) unpack(b []byte) error { - if len(b) != 2 { - return errors.New("bad svcbport: port length is not exactly 2 octets") - } - s.Port = binary.BigEndian.Uint16(b) - return nil -} - -func (s *SVCBPort) pack() ([]byte, error) { - b := make([]byte, 2) - binary.BigEndian.PutUint16(b, s.Port) - return b, nil -} - -func (s *SVCBPort) parse(b string) error { - port, err := strconv.ParseUint(b, 10, 16) - if err != nil { - return errors.New("bad svcbport: port out of range") - } - s.Port = uint16(port) - return nil -} - -// SVCBIPv4Hint pair suggests an IPv4 address which may be used to open connections -// if A and AAAA record responses for SVCB's Target domain haven't been received. -// In that case, optionally, A and AAAA requests can be made, after which the connection -// to the hinted IP address may be terminated and a new connection may be opened. -// Basic use pattern for creating an ipv4hint option: -// -// h := new(dns.HTTPS) -// h.Hdr = dns.RR_Header{Name: ".", Rrtype: dns.TypeHTTPS, Class: dns.ClassINET} -// e := new(dns.SVCBIPv4Hint) -// e.Hint = []net.IP{net.IPv4(1,1,1,1).To4()} -// -// Or -// -// e.Hint = []net.IP{net.ParseIP("1.1.1.1").To4()} -// h.Value = append(h.Value, e) -type SVCBIPv4Hint struct { - Hint []net.IP -} - -func (*SVCBIPv4Hint) Key() SVCBKey { return SVCB_IPV4HINT } -func (s *SVCBIPv4Hint) len() int { return 4 * len(s.Hint) } - -func (s *SVCBIPv4Hint) pack() ([]byte, error) { - b := make([]byte, 0, 4*len(s.Hint)) - for _, e := range s.Hint { - x := e.To4() - if x == nil { - return nil, errors.New("bad svcbipv4hint: expected ipv4, hint is ipv6") - } - b = append(b, x...) - } - return b, nil -} - -func (s *SVCBIPv4Hint) unpack(b []byte) error { - if len(b) == 0 || len(b)%4 != 0 { - return errors.New("bad svcbipv4hint: ipv4 address byte array length is not a multiple of 4") - } - b = cloneSlice(b) - x := make([]net.IP, 0, len(b)/4) - for i := 0; i < len(b); i += 4 { - x = append(x, net.IP(b[i:i+4])) - } - s.Hint = x - return nil -} - -func (s *SVCBIPv4Hint) String() string { - str := make([]string, len(s.Hint)) - for i, e := range s.Hint { - x := e.To4() - if x == nil { - return "" - } - str[i] = x.String() - } - return strings.Join(str, ",") -} - -func (s *SVCBIPv4Hint) parse(b string) error { - if b == "" { - return errors.New("bad svcbipv4hint: empty hint") - } - if strings.Contains(b, ":") { - return errors.New("bad svcbipv4hint: expected ipv4, got ipv6") - } - - hint := make([]net.IP, 0, strings.Count(b, ",")+1) - for len(b) > 0 { - var e string - e, b, _ = strings.Cut(b, ",") - ip := net.ParseIP(e).To4() - if ip == nil { - return errors.New("bad svcbipv4hint: bad ip") - } - hint = append(hint, ip) - } - s.Hint = hint - return nil -} - -func (s *SVCBIPv4Hint) copy() SVCBKeyValue { - hint := make([]net.IP, len(s.Hint)) - for i, ip := range s.Hint { - hint[i] = cloneSlice(ip) - } - return &SVCBIPv4Hint{Hint: hint} -} - -// SVCBECHConfig pair contains the ECHConfig structure defined in draft-ietf-tls-esni [RFC xxxx]. -// Basic use pattern for creating an ech option: -// -// h := new(dns.HTTPS) -// h.Hdr = dns.RR_Header{Name: ".", Rrtype: dns.TypeHTTPS, Class: dns.ClassINET} -// e := new(dns.SVCBECHConfig) -// e.ECH = []byte{0xfe, 0x08, ...} -// h.Value = append(h.Value, e) -type SVCBECHConfig struct { - ECH []byte // Specifically ECHConfigList including the redundant length prefix -} - -func (*SVCBECHConfig) Key() SVCBKey { return SVCB_ECHCONFIG } -func (s *SVCBECHConfig) String() string { return toBase64(s.ECH) } -func (s *SVCBECHConfig) len() int { return len(s.ECH) } - -func (s *SVCBECHConfig) pack() ([]byte, error) { - return cloneSlice(s.ECH), nil -} - -func (s *SVCBECHConfig) copy() SVCBKeyValue { - return &SVCBECHConfig{cloneSlice(s.ECH)} -} - -func (s *SVCBECHConfig) unpack(b []byte) error { - s.ECH = cloneSlice(b) - return nil -} - -func (s *SVCBECHConfig) parse(b string) error { - x, err := fromBase64([]byte(b)) - if err != nil { - return errors.New("bad svcbech: bad base64 ech") - } - s.ECH = x - return nil -} - -// SVCBIPv6Hint pair suggests an IPv6 address which may be used to open connections -// if A and AAAA record responses for SVCB's Target domain haven't been received. -// In that case, optionally, A and AAAA requests can be made, after which the -// connection to the hinted IP address may be terminated and a new connection may be opened. -// Basic use pattern for creating an ipv6hint option: -// -// h := new(dns.HTTPS) -// h.Hdr = dns.RR_Header{Name: ".", Rrtype: dns.TypeHTTPS, Class: dns.ClassINET} -// e := new(dns.SVCBIPv6Hint) -// e.Hint = []net.IP{net.ParseIP("2001:db8::1")} -// h.Value = append(h.Value, e) -type SVCBIPv6Hint struct { - Hint []net.IP -} - -func (*SVCBIPv6Hint) Key() SVCBKey { return SVCB_IPV6HINT } -func (s *SVCBIPv6Hint) len() int { return 16 * len(s.Hint) } - -func (s *SVCBIPv6Hint) pack() ([]byte, error) { - b := make([]byte, 0, 16*len(s.Hint)) - for _, e := range s.Hint { - if len(e) != net.IPv6len || e.To4() != nil { - return nil, errors.New("bad svcbipv6hint: expected ipv6, hint is ipv4") - } - b = append(b, e...) - } - return b, nil -} - -func (s *SVCBIPv6Hint) unpack(b []byte) error { - if len(b) == 0 || len(b)%16 != 0 { - return errors.New("bas svcbipv6hint: ipv6 address byte array length not a multiple of 16") - } - b = cloneSlice(b) - x := make([]net.IP, 0, len(b)/16) - for i := 0; i < len(b); i += 16 { - ip := net.IP(b[i : i+16]) - if ip.To4() != nil { - return errors.New("bad svcbipv6hint: expected ipv6, got ipv4") - } - x = append(x, ip) - } - s.Hint = x - return nil -} - -func (s *SVCBIPv6Hint) String() string { - str := make([]string, len(s.Hint)) - for i, e := range s.Hint { - if x := e.To4(); x != nil { - return "" - } - str[i] = e.String() - } - return strings.Join(str, ",") -} - -func (s *SVCBIPv6Hint) parse(b string) error { - if b == "" { - return errors.New("bad svcbipv6hint: empty hint") - } - - hint := make([]net.IP, 0, strings.Count(b, ",")+1) - for len(b) > 0 { - var e string - e, b, _ = strings.Cut(b, ",") - ip := net.ParseIP(e) - if ip == nil { - return errors.New("bad svcbipv6hint: bad ip") - } - if ip.To4() != nil { - return errors.New("bad svcbipv6hint: expected ipv6, got ipv4-mapped-ipv6") - } - hint = append(hint, ip) - } - s.Hint = hint - return nil -} - -func (s *SVCBIPv6Hint) copy() SVCBKeyValue { - hint := make([]net.IP, len(s.Hint)) - for i, ip := range s.Hint { - hint[i] = cloneSlice(ip) - } - return &SVCBIPv6Hint{Hint: hint} -} - -// SVCBDoHPath pair is used to indicate the URI template that the -// clients may use to construct a DNS over HTTPS URI. -// -// See RFC 9461 (https://datatracker.ietf.org/doc/html/rfc9461) -// and RFC 9462 (https://datatracker.ietf.org/doc/html/rfc9462). -// -// A basic example of using the dohpath option together with the alpn -// option to indicate support for DNS over HTTPS on a certain path: -// -// s := new(dns.SVCB) -// s.Hdr = dns.RR_Header{Name: ".", Rrtype: dns.TypeSVCB, Class: dns.ClassINET} -// e := new(dns.SVCBAlpn) -// e.Alpn = []string{"h2", "h3"} -// p := new(dns.SVCBDoHPath) -// p.Template = "/dns-query{?dns}" -// s.Value = append(s.Value, e, p) -// -// The parsing currently doesn't validate that Template is a valid -// RFC 6570 URI template. -type SVCBDoHPath struct { - Template string -} - -func (*SVCBDoHPath) Key() SVCBKey { return SVCB_DOHPATH } -func (s *SVCBDoHPath) String() string { return svcbParamToStr([]byte(s.Template)) } -func (s *SVCBDoHPath) len() int { return len(s.Template) } -func (s *SVCBDoHPath) pack() ([]byte, error) { return []byte(s.Template), nil } - -func (s *SVCBDoHPath) unpack(b []byte) error { - s.Template = string(b) - return nil -} - -func (s *SVCBDoHPath) parse(b string) error { - template, err := svcbParseParam(b) - if err != nil { - return fmt.Errorf("bad svcbdohpath: %w", err) - } - s.Template = string(template) - return nil -} - -func (s *SVCBDoHPath) copy() SVCBKeyValue { - return &SVCBDoHPath{ - Template: s.Template, - } -} - -// The "ohttp" SvcParamKey is used to indicate that a service described in a SVCB RR -// can be accessed as a target using an associated gateway. -// Both the presentation and wire-format values for the "ohttp" parameter MUST be empty. -// -// See RFC 9460 (https://datatracker.ietf.org/doc/html/rfc9460/) -// and RFC 9230 (https://datatracker.ietf.org/doc/html/rfc9230/) -// -// A basic example of using the dohpath option together with the alpn -// option to indicate support for DNS over HTTPS on a certain path: -// -// s := new(dns.SVCB) -// s.Hdr = dns.RR_Header{Name: ".", Rrtype: dns.TypeSVCB, Class: dns.ClassINET} -// e := new(dns.SVCBAlpn) -// e.Alpn = []string{"h2", "h3"} -// p := new(dns.SVCBOhttp) -// s.Value = append(s.Value, e, p) -type SVCBOhttp struct{} - -func (*SVCBOhttp) Key() SVCBKey { return SVCB_OHTTP } -func (*SVCBOhttp) copy() SVCBKeyValue { return &SVCBOhttp{} } -func (*SVCBOhttp) pack() ([]byte, error) { return []byte{}, nil } -func (*SVCBOhttp) String() string { return "" } -func (*SVCBOhttp) len() int { return 0 } - -func (*SVCBOhttp) unpack(b []byte) error { - if len(b) != 0 { - return errors.New("bad svcbotthp: svcbotthp must have no value") - } - return nil -} - -func (*SVCBOhttp) parse(b string) error { - if b != "" { - return errors.New("bad svcbotthp: svcbotthp must have no value") - } - return nil -} - -// SVCBLocal pair is intended for experimental/private use. The key is recommended -// to be in the range [SVCB_PRIVATE_LOWER, SVCB_PRIVATE_UPPER]. -// Basic use pattern for creating a keyNNNNN option: -// -// h := new(dns.HTTPS) -// h.Hdr = dns.RR_Header{Name: ".", Rrtype: dns.TypeHTTPS, Class: dns.ClassINET} -// e := new(dns.SVCBLocal) -// e.KeyCode = 65400 -// e.Data = []byte("abc") -// h.Value = append(h.Value, e) -type SVCBLocal struct { - KeyCode SVCBKey // Never 65535 or any assigned keys. - Data []byte // All byte sequences are allowed. -} - -func (s *SVCBLocal) Key() SVCBKey { return s.KeyCode } -func (s *SVCBLocal) String() string { return svcbParamToStr(s.Data) } -func (s *SVCBLocal) pack() ([]byte, error) { return cloneSlice(s.Data), nil } -func (s *SVCBLocal) len() int { return len(s.Data) } - -func (s *SVCBLocal) unpack(b []byte) error { - s.Data = cloneSlice(b) - return nil -} - -func (s *SVCBLocal) parse(b string) error { - data, err := svcbParseParam(b) - if err != nil { - return fmt.Errorf("bad svcblocal: svcb private/experimental key %w", err) - } - s.Data = data - return nil -} - -func (s *SVCBLocal) copy() SVCBKeyValue { - return &SVCBLocal{s.KeyCode, cloneSlice(s.Data)} -} - -func (rr *SVCB) String() string { - s := rr.Hdr.String() + - strconv.Itoa(int(rr.Priority)) + " " + - sprintName(rr.Target) - for _, e := range rr.Value { - s += " " + e.Key().String() + "=\"" + e.String() + "\"" - } - return s -} - -// areSVCBPairArraysEqual checks if SVCBKeyValue arrays are equal after sorting their -// copies. arrA and arrB have equal lengths, otherwise zduplicate.go wouldn't call this function. -func areSVCBPairArraysEqual(a []SVCBKeyValue, b []SVCBKeyValue) bool { - a = cloneSlice(a) - b = cloneSlice(b) - sort.Slice(a, func(i, j int) bool { return a[i].Key() < a[j].Key() }) - sort.Slice(b, func(i, j int) bool { return b[i].Key() < b[j].Key() }) - for i, e := range a { - if e.Key() != b[i].Key() { - return false - } - b1, err1 := e.pack() - b2, err2 := b[i].pack() - if err1 != nil || err2 != nil || !bytes.Equal(b1, b2) { - return false - } - } - return true -} - -// svcbParamStr converts the value of an SVCB parameter into a DNS presentation-format string. -func svcbParamToStr(s []byte) string { - var str strings.Builder - str.Grow(4 * len(s)) - for _, e := range s { - if ' ' <= e && e <= '~' { - switch e { - case '"', ';', ' ', '\\': - str.WriteByte('\\') - str.WriteByte(e) - default: - str.WriteByte(e) - } - } else { - str.WriteString(escapeByte(e)) - } - } - return str.String() -} - -// svcbParseParam parses a DNS presentation-format string into an SVCB parameter value. -func svcbParseParam(b string) ([]byte, error) { - data := make([]byte, 0, len(b)) - for i := 0; i < len(b); { - if b[i] != '\\' { - data = append(data, b[i]) - i++ - continue - } - if i+1 == len(b) { - return nil, errors.New("escape unterminated") - } - if isDigit(b[i+1]) { - if i+3 < len(b) && isDigit(b[i+2]) && isDigit(b[i+3]) { - a, err := strconv.ParseUint(b[i+1:i+4], 10, 8) - if err == nil { - i += 4 - data = append(data, byte(a)) - continue - } - } - return nil, errors.New("bad escaped octet") - } else { - data = append(data, b[i+1]) - i += 2 - } - } - return data, nil -} diff --git a/vendor/github.com/miekg/dns/tlsa.go b/vendor/github.com/miekg/dns/tlsa.go deleted file mode 100644 index 4e07983b97..0000000000 --- a/vendor/github.com/miekg/dns/tlsa.go +++ /dev/null @@ -1,44 +0,0 @@ -package dns - -import ( - "crypto/x509" - "net" - "strconv" -) - -// Sign creates a TLSA record from an SSL certificate. -func (r *TLSA) Sign(usage, selector, matchingType int, cert *x509.Certificate) (err error) { - r.Hdr.Rrtype = TypeTLSA - r.Usage = uint8(usage) - r.Selector = uint8(selector) - r.MatchingType = uint8(matchingType) - - r.Certificate, err = CertificateToDANE(r.Selector, r.MatchingType, cert) - return err -} - -// Verify verifies a TLSA record against an SSL certificate. If it is OK -// a nil error is returned. -func (r *TLSA) Verify(cert *x509.Certificate) error { - c, err := CertificateToDANE(r.Selector, r.MatchingType, cert) - if err != nil { - return err // Not also ErrSig? - } - if r.Certificate == c { - return nil - } - return ErrSig // ErrSig, really? -} - -// TLSAName returns the ownername of a TLSA resource record as per the -// rules specified in RFC 6698, Section 3. -func TLSAName(name, service, network string) (string, error) { - if !IsFqdn(name) { - return "", ErrFqdn - } - p, err := net.LookupPort(network, service) - if err != nil { - return "", err - } - return "_" + strconv.Itoa(p) + "._" + network + "." + name, nil -} diff --git a/vendor/github.com/miekg/dns/tools.go b/vendor/github.com/miekg/dns/tools.go deleted file mode 100644 index ccf8f6bfc7..0000000000 --- a/vendor/github.com/miekg/dns/tools.go +++ /dev/null @@ -1,10 +0,0 @@ -//go:build tools -// +build tools - -// We include our tool dependencies for `go generate` here to ensure they're -// properly tracked by the go tool. See the Go Wiki for the rationale behind this: -// https://github.com/golang/go/wiki/Modules#how-can-i-track-tool-dependencies-for-a-module. - -package dns - -import _ "golang.org/x/tools/go/packages" diff --git a/vendor/github.com/miekg/dns/tsig.go b/vendor/github.com/miekg/dns/tsig.go deleted file mode 100644 index debfe2dd99..0000000000 --- a/vendor/github.com/miekg/dns/tsig.go +++ /dev/null @@ -1,456 +0,0 @@ -package dns - -import ( - "crypto/hmac" - "crypto/sha1" - "crypto/sha256" - "crypto/sha512" - "encoding/binary" - "encoding/hex" - "hash" - "strconv" - "strings" - "time" -) - -// HMAC hashing codes. These are transmitted as domain names. -const ( - HmacSHA1 = "hmac-sha1." - HmacSHA224 = "hmac-sha224." - HmacSHA256 = "hmac-sha256." - HmacSHA384 = "hmac-sha384." - HmacSHA512 = "hmac-sha512." - - HmacMD5 = "hmac-md5.sig-alg.reg.int." // Deprecated: HmacMD5 is no longer supported. -) - -// TsigProvider provides the API to plug-in a custom TSIG implementation. -type TsigProvider interface { - // Generate is passed the DNS message to be signed and the partial TSIG RR. It returns the signature and nil, otherwise an error. - Generate(msg []byte, t *TSIG) ([]byte, error) - // Verify is passed the DNS message to be verified and the TSIG RR. If the signature is valid it will return nil, otherwise an error. - Verify(msg []byte, t *TSIG) error -} - -type tsigHMACProvider string - -func (key tsigHMACProvider) Generate(msg []byte, t *TSIG) ([]byte, error) { - // If we barf here, the caller is to blame - rawsecret, err := fromBase64([]byte(key)) - if err != nil { - return nil, err - } - var h hash.Hash - switch CanonicalName(t.Algorithm) { - case HmacSHA1: - h = hmac.New(sha1.New, rawsecret) - case HmacSHA224: - h = hmac.New(sha256.New224, rawsecret) - case HmacSHA256: - h = hmac.New(sha256.New, rawsecret) - case HmacSHA384: - h = hmac.New(sha512.New384, rawsecret) - case HmacSHA512: - h = hmac.New(sha512.New, rawsecret) - default: - return nil, ErrKeyAlg - } - h.Write(msg) - return h.Sum(nil), nil -} - -func (key tsigHMACProvider) Verify(msg []byte, t *TSIG) error { - b, err := key.Generate(msg, t) - if err != nil { - return err - } - mac, err := hex.DecodeString(t.MAC) - if err != nil { - return err - } - if !hmac.Equal(b, mac) { - return ErrSig - } - return nil -} - -type tsigSecretProvider map[string]string - -func (ts tsigSecretProvider) Generate(msg []byte, t *TSIG) ([]byte, error) { - key, ok := ts[t.Hdr.Name] - if !ok { - return nil, ErrSecret - } - return tsigHMACProvider(key).Generate(msg, t) -} - -func (ts tsigSecretProvider) Verify(msg []byte, t *TSIG) error { - key, ok := ts[t.Hdr.Name] - if !ok { - return ErrSecret - } - return tsigHMACProvider(key).Verify(msg, t) -} - -// TSIG is the RR the holds the transaction signature of a message. -// See RFC 2845 and RFC 4635. -type TSIG struct { - Hdr RR_Header - Algorithm string `dns:"domain-name"` - TimeSigned uint64 `dns:"uint48"` - Fudge uint16 - MACSize uint16 - MAC string `dns:"size-hex:MACSize"` - OrigId uint16 - Error uint16 - OtherLen uint16 - OtherData string `dns:"size-hex:OtherLen"` -} - -// TSIG has no official presentation format, but this will suffice. - -func (rr *TSIG) String() string { - s := "\n;; TSIG PSEUDOSECTION:\n; " // add another semi-colon to signify TSIG does not have a presentation format - s += rr.Hdr.String() + - " " + rr.Algorithm + - " " + tsigTimeToString(rr.TimeSigned) + - " " + strconv.Itoa(int(rr.Fudge)) + - " " + strconv.Itoa(int(rr.MACSize)) + - " " + strings.ToUpper(rr.MAC) + - " " + strconv.Itoa(int(rr.OrigId)) + - " " + strconv.Itoa(int(rr.Error)) + // BIND prints NOERROR - " " + strconv.Itoa(int(rr.OtherLen)) + - " " + rr.OtherData - return s -} - -func (*TSIG) parse(c *zlexer, origin string) *ParseError { - return &ParseError{err: "TSIG records do not have a presentation format"} -} - -// The following values must be put in wireformat, so that the MAC can be calculated. -// RFC 2845, section 3.4.2. TSIG Variables. -type tsigWireFmt struct { - // From RR_Header - Name string `dns:"domain-name"` - Class uint16 - Ttl uint32 - // Rdata of the TSIG - Algorithm string `dns:"domain-name"` - TimeSigned uint64 `dns:"uint48"` - Fudge uint16 - // MACSize, MAC and OrigId excluded - Error uint16 - OtherLen uint16 - OtherData string `dns:"size-hex:OtherLen"` -} - -// If we have the MAC use this type to convert it to wiredata. Section 3.4.3. Request MAC -type macWireFmt struct { - MACSize uint16 - MAC string `dns:"size-hex:MACSize"` -} - -// 3.3. Time values used in TSIG calculations -type timerWireFmt struct { - TimeSigned uint64 `dns:"uint48"` - Fudge uint16 -} - -// TsigGenerate fills out the TSIG record attached to the message. -// The message should contain a "stub" TSIG RR with the algorithm, key name -// (owner name of the RR), time fudge (defaults to 300 seconds) and the current -// time The TSIG MAC is saved in that Tsig RR. When TsigGenerate is called for -// the first time requestMAC should be set to the empty string and timersOnly to -// false. -func TsigGenerate(m *Msg, secret, requestMAC string, timersOnly bool) ([]byte, string, error) { - return TsigGenerateWithProvider(m, tsigHMACProvider(secret), requestMAC, timersOnly) -} - -// TsigGenerateWithProvider is similar to TsigGenerate, but allows for a custom TsigProvider. -func TsigGenerateWithProvider(m *Msg, provider TsigProvider, requestMAC string, timersOnly bool) ([]byte, string, error) { - if m.IsTsig() == nil { - panic("dns: TSIG not last RR in additional") - } - - rr := m.Extra[len(m.Extra)-1].(*TSIG) - m.Extra = m.Extra[0 : len(m.Extra)-1] // kill the TSIG from the msg - mbuf, err := m.Pack() - if err != nil { - return nil, "", err - } - - buf, err := tsigBuffer(mbuf, rr, requestMAC, timersOnly) - if err != nil { - return nil, "", err - } - - t := new(TSIG) - // Copy all TSIG fields except MAC, its size, and time signed which are filled when signing. - *t = *rr - t.TimeSigned = 0 - t.MAC = "" - t.MACSize = 0 - - // Sign unless there is a key or MAC validation error (RFC 8945 5.3.2) - if rr.Error != RcodeBadKey && rr.Error != RcodeBadSig { - mac, err := provider.Generate(buf, rr) - if err != nil { - return nil, "", err - } - t.TimeSigned = rr.TimeSigned - t.MAC = hex.EncodeToString(mac) - t.MACSize = uint16(len(t.MAC) / 2) // Size is half! - } - - tbuf := make([]byte, Len(t)) - off, err := PackRR(t, tbuf, 0, nil, false) - if err != nil { - return nil, "", err - } - mbuf = append(mbuf, tbuf[:off]...) - // Update the ArCount directly in the buffer. - binary.BigEndian.PutUint16(mbuf[10:], uint16(len(m.Extra)+1)) - - return mbuf, t.MAC, nil -} - -// TsigVerify verifies the TSIG on a message. If the signature does not -// validate the returned error contains the cause. If the signature is OK, the -// error is nil. -func TsigVerify(msg []byte, secret, requestMAC string, timersOnly bool) error { - return tsigVerify(msg, tsigHMACProvider(secret), requestMAC, timersOnly, uint64(time.Now().Unix())) -} - -// TsigVerifyWithProvider is similar to TsigVerify, but allows for a custom TsigProvider. -func TsigVerifyWithProvider(msg []byte, provider TsigProvider, requestMAC string, timersOnly bool) error { - return tsigVerify(msg, provider, requestMAC, timersOnly, uint64(time.Now().Unix())) -} - -// actual implementation of TsigVerify, taking the current time ('now') as a parameter for the convenience of tests. -func tsigVerify(msg []byte, provider TsigProvider, requestMAC string, timersOnly bool, now uint64) error { - // Strip the TSIG from the incoming msg - stripped, tsig, err := stripTsig(msg) - if err != nil { - return err - } - - buf, err := tsigBuffer(stripped, tsig, requestMAC, timersOnly) - if err != nil { - return err - } - - if err := provider.Verify(buf, tsig); err != nil { - return err - } - - // Fudge factor works both ways. A message can arrive before it was signed because - // of clock skew. - // We check this after verifying the signature, following draft-ietf-dnsop-rfc2845bis - // instead of RFC2845, in order to prevent a security vulnerability as reported in CVE-2017-3142/3143. - ti := now - tsig.TimeSigned - if now < tsig.TimeSigned { - ti = tsig.TimeSigned - now - } - if uint64(tsig.Fudge) < ti { - return ErrTime - } - - return nil -} - -// Create a wiredata buffer for the MAC calculation. -func tsigBuffer(msgbuf []byte, rr *TSIG, requestMAC string, timersOnly bool) ([]byte, error) { - var buf []byte - if rr.TimeSigned == 0 { - rr.TimeSigned = uint64(time.Now().Unix()) - } - if rr.Fudge == 0 { - rr.Fudge = 300 // Standard (RFC) default. - } - - // Replace message ID in header with original ID from TSIG - binary.BigEndian.PutUint16(msgbuf[0:2], rr.OrigId) - - if requestMAC != "" { - m := new(macWireFmt) - m.MACSize = uint16(len(requestMAC) / 2) - m.MAC = requestMAC - buf = make([]byte, len(requestMAC)) // long enough - n, err := packMacWire(m, buf) - if err != nil { - return nil, err - } - buf = buf[:n] - } - - tsigvar := make([]byte, DefaultMsgSize) - if timersOnly { - tsig := new(timerWireFmt) - tsig.TimeSigned = rr.TimeSigned - tsig.Fudge = rr.Fudge - n, err := packTimerWire(tsig, tsigvar) - if err != nil { - return nil, err - } - tsigvar = tsigvar[:n] - } else { - tsig := new(tsigWireFmt) - tsig.Name = CanonicalName(rr.Hdr.Name) - tsig.Class = ClassANY - tsig.Ttl = rr.Hdr.Ttl - tsig.Algorithm = CanonicalName(rr.Algorithm) - tsig.TimeSigned = rr.TimeSigned - tsig.Fudge = rr.Fudge - tsig.Error = rr.Error - tsig.OtherLen = rr.OtherLen - tsig.OtherData = rr.OtherData - n, err := packTsigWire(tsig, tsigvar) - if err != nil { - return nil, err - } - tsigvar = tsigvar[:n] - } - - if requestMAC != "" { - x := append(buf, msgbuf...) - buf = append(x, tsigvar...) - } else { - buf = append(msgbuf, tsigvar...) - } - return buf, nil -} - -// Strip the TSIG from the raw message. -func stripTsig(msg []byte) ([]byte, *TSIG, error) { - // Copied from msg.go's Unpack() Header, but modified. - var ( - dh Header - err error - ) - off, tsigoff := 0, 0 - - if dh, off, err = unpackMsgHdr(msg, off); err != nil { - return nil, nil, err - } - if dh.Arcount == 0 { - return nil, nil, ErrNoSig - } - - // Rcode, see msg.go Unpack() - if int(dh.Bits&0xF) == RcodeNotAuth { - return nil, nil, ErrAuth - } - - for i := 0; i < int(dh.Qdcount); i++ { - _, off, err = unpackQuestion(msg, off) - if err != nil { - return nil, nil, err - } - } - - _, off, err = unpackRRslice(int(dh.Ancount), msg, off) - if err != nil { - return nil, nil, err - } - _, off, err = unpackRRslice(int(dh.Nscount), msg, off) - if err != nil { - return nil, nil, err - } - - rr := new(TSIG) - var extra RR - for i := 0; i < int(dh.Arcount); i++ { - tsigoff = off - extra, off, err = UnpackRR(msg, off) - if err != nil { - return nil, nil, err - } - if extra.Header().Rrtype == TypeTSIG { - rr = extra.(*TSIG) - // Adjust Arcount. - arcount := binary.BigEndian.Uint16(msg[10:]) - binary.BigEndian.PutUint16(msg[10:], arcount-1) - break - } - } - if rr == nil { - return nil, nil, ErrNoSig - } - return msg[:tsigoff], rr, nil -} - -// Translate the TSIG time signed into a date. There is no -// need for RFC1982 calculations as this date is 48 bits. -func tsigTimeToString(t uint64) string { - ti := time.Unix(int64(t), 0).UTC() - return ti.Format("20060102150405") -} - -func packTsigWire(tw *tsigWireFmt, msg []byte) (int, error) { - // copied from zmsg.go TSIG packing - // RR_Header - off, err := PackDomainName(tw.Name, msg, 0, nil, false) - if err != nil { - return off, err - } - off, err = packUint16(tw.Class, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(tw.Ttl, msg, off) - if err != nil { - return off, err - } - - off, err = PackDomainName(tw.Algorithm, msg, off, nil, false) - if err != nil { - return off, err - } - off, err = packUint48(tw.TimeSigned, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(tw.Fudge, msg, off) - if err != nil { - return off, err - } - - off, err = packUint16(tw.Error, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(tw.OtherLen, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(tw.OtherData, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func packMacWire(mw *macWireFmt, msg []byte) (int, error) { - off, err := packUint16(mw.MACSize, msg, 0) - if err != nil { - return off, err - } - off, err = packStringHex(mw.MAC, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func packTimerWire(tw *timerWireFmt, msg []byte) (int, error) { - off, err := packUint48(tw.TimeSigned, msg, 0) - if err != nil { - return off, err - } - off, err = packUint16(tw.Fudge, msg, off) - if err != nil { - return off, err - } - return off, nil -} diff --git a/vendor/github.com/miekg/dns/types.go b/vendor/github.com/miekg/dns/types.go deleted file mode 100644 index f5067cd433..0000000000 --- a/vendor/github.com/miekg/dns/types.go +++ /dev/null @@ -1,1712 +0,0 @@ -package dns - -import ( - "bytes" - "fmt" - "net" - "strconv" - "strings" - "time" -) - -type ( - // Type is a DNS type. - Type uint16 - // Class is a DNS class. - Class uint16 - // Name is a DNS domain name. - Name string -) - -// Packet formats - -// Wire constants and supported types. -const ( - // valid RR_Header.Rrtype and Question.qtype - - TypeNone uint16 = 0 - TypeA uint16 = 1 - TypeNS uint16 = 2 - TypeMD uint16 = 3 - TypeMF uint16 = 4 - TypeCNAME uint16 = 5 - TypeSOA uint16 = 6 - TypeMB uint16 = 7 - TypeMG uint16 = 8 - TypeMR uint16 = 9 - TypeNULL uint16 = 10 - TypePTR uint16 = 12 - TypeHINFO uint16 = 13 - TypeMINFO uint16 = 14 - TypeMX uint16 = 15 - TypeTXT uint16 = 16 - TypeRP uint16 = 17 - TypeAFSDB uint16 = 18 - TypeX25 uint16 = 19 - TypeISDN uint16 = 20 - TypeRT uint16 = 21 - TypeNSAPPTR uint16 = 23 - TypeSIG uint16 = 24 - TypeKEY uint16 = 25 - TypePX uint16 = 26 - TypeGPOS uint16 = 27 - TypeAAAA uint16 = 28 - TypeLOC uint16 = 29 - TypeNXT uint16 = 30 - TypeEID uint16 = 31 - TypeNIMLOC uint16 = 32 - TypeSRV uint16 = 33 - TypeATMA uint16 = 34 - TypeNAPTR uint16 = 35 - TypeKX uint16 = 36 - TypeCERT uint16 = 37 - TypeDNAME uint16 = 39 - TypeOPT uint16 = 41 // EDNS - TypeAPL uint16 = 42 - TypeDS uint16 = 43 - TypeSSHFP uint16 = 44 - TypeIPSECKEY uint16 = 45 - TypeRRSIG uint16 = 46 - TypeNSEC uint16 = 47 - TypeDNSKEY uint16 = 48 - TypeDHCID uint16 = 49 - TypeNSEC3 uint16 = 50 - TypeNSEC3PARAM uint16 = 51 - TypeTLSA uint16 = 52 - TypeSMIMEA uint16 = 53 - TypeHIP uint16 = 55 - TypeNINFO uint16 = 56 - TypeRKEY uint16 = 57 - TypeTALINK uint16 = 58 - TypeCDS uint16 = 59 - TypeCDNSKEY uint16 = 60 - TypeOPENPGPKEY uint16 = 61 - TypeCSYNC uint16 = 62 - TypeZONEMD uint16 = 63 - TypeSVCB uint16 = 64 - TypeHTTPS uint16 = 65 - TypeSPF uint16 = 99 - TypeUINFO uint16 = 100 - TypeUID uint16 = 101 - TypeGID uint16 = 102 - TypeUNSPEC uint16 = 103 - TypeNID uint16 = 104 - TypeL32 uint16 = 105 - TypeL64 uint16 = 106 - TypeLP uint16 = 107 - TypeEUI48 uint16 = 108 - TypeEUI64 uint16 = 109 - TypeNXNAME uint16 = 128 - TypeURI uint16 = 256 - TypeCAA uint16 = 257 - TypeAVC uint16 = 258 - TypeAMTRELAY uint16 = 260 - TypeRESINFO uint16 = 261 - - TypeTKEY uint16 = 249 - TypeTSIG uint16 = 250 - - // valid Question.Qtype only - TypeIXFR uint16 = 251 - TypeAXFR uint16 = 252 - TypeMAILB uint16 = 253 - TypeMAILA uint16 = 254 - TypeANY uint16 = 255 - - TypeTA uint16 = 32768 - TypeDLV uint16 = 32769 - TypeReserved uint16 = 65535 - - // valid Question.Qclass - ClassINET = 1 - ClassCSNET = 2 - ClassCHAOS = 3 - ClassHESIOD = 4 - ClassNONE = 254 - ClassANY = 255 - - // Message Response Codes, see https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml - RcodeSuccess = 0 // NoError - No Error [DNS] - RcodeFormatError = 1 // FormErr - Format Error [DNS] - RcodeServerFailure = 2 // ServFail - Server Failure [DNS] - RcodeNameError = 3 // NXDomain - Non-Existent Domain [DNS] - RcodeNotImplemented = 4 // NotImp - Not Implemented [DNS] - RcodeRefused = 5 // Refused - Query Refused [DNS] - RcodeYXDomain = 6 // YXDomain - Name Exists when it should not [DNS Update] - RcodeYXRrset = 7 // YXRRSet - RR Set Exists when it should not [DNS Update] - RcodeNXRrset = 8 // NXRRSet - RR Set that should exist does not [DNS Update] - RcodeNotAuth = 9 // NotAuth - Server Not Authoritative for zone [DNS Update] - RcodeNotZone = 10 // NotZone - Name not contained in zone [DNS Update/TSIG] - RcodeStatefulTypeNotImplemented = 11 // DSOTypeNI - DSO-TYPE not implemented [DNS Stateful Operations] https://www.rfc-editor.org/rfc/rfc8490.html#section-10.2 - RcodeBadSig = 16 // BADSIG - TSIG Signature Failure [TSIG] https://www.rfc-editor.org/rfc/rfc6895.html#section-2.3 - RcodeBadVers = 16 // BADVERS - Bad OPT Version [EDNS0] https://www.rfc-editor.org/rfc/rfc6895.html#section-2.3 - RcodeBadKey = 17 // BADKEY - Key not recognized [TSIG] - RcodeBadTime = 18 // BADTIME - Signature out of time window [TSIG] - RcodeBadMode = 19 // BADMODE - Bad TKEY Mode [TKEY] - RcodeBadName = 20 // BADNAME - Duplicate key name [TKEY] - RcodeBadAlg = 21 // BADALG - Algorithm not supported [TKEY] - RcodeBadTrunc = 22 // BADTRUNC - Bad Truncation [TSIG] - RcodeBadCookie = 23 // BADCOOKIE - Bad/missing Server Cookie [DNS Cookies] - - // Message Opcodes. There is no 3. - OpcodeQuery = 0 - OpcodeIQuery = 1 - OpcodeStatus = 2 - OpcodeNotify = 4 - OpcodeUpdate = 5 - OpcodeStateful = 6 -) - -// Used in ZONEMD https://tools.ietf.org/html/rfc8976 -const ( - ZoneMDSchemeSimple = 1 - - ZoneMDHashAlgSHA384 = 1 - ZoneMDHashAlgSHA512 = 2 -) - -// Used in IPSEC https://datatracker.ietf.org/doc/html/rfc4025#section-2.3 -const ( - IPSECGatewayNone uint8 = iota - IPSECGatewayIPv4 - IPSECGatewayIPv6 - IPSECGatewayHost -) - -// Used in AMTRELAY https://datatracker.ietf.org/doc/html/rfc8777#section-4.2.3 -const ( - AMTRELAYNone = IPSECGatewayNone - AMTRELAYIPv4 = IPSECGatewayIPv4 - AMTRELAYIPv6 = IPSECGatewayIPv6 - AMTRELAYHost = IPSECGatewayHost -) - -// Stateful types as defined in RFC 8490. -const ( - StatefulTypeKeepAlive uint16 = iota + 1 - StatefulTypeRetryDelay - StatefulTypeEncryptionPadding -) - -var StatefulTypeToString = map[uint16]string{ - StatefulTypeKeepAlive: "KeepAlive", - StatefulTypeRetryDelay: "RetryDelay", - StatefulTypeEncryptionPadding: "EncryptionPadding", -} - -// Header is the wire format for the DNS packet header. -type Header struct { - Id uint16 - Bits uint16 - Qdcount, Ancount, Nscount, Arcount uint16 -} - -const ( - headerSize = 12 - - // Header.Bits - _QR = 1 << 15 // query/response (response=1) - _AA = 1 << 10 // authoritative - _TC = 1 << 9 // truncated - _RD = 1 << 8 // recursion desired - _RA = 1 << 7 // recursion available - _Z = 1 << 6 // Z - _AD = 1 << 5 // authenticated data - _CD = 1 << 4 // checking disabled -) - -// Various constants used in the LOC RR. See RFC 1876. -const ( - LOC_EQUATOR = 1 << 31 // RFC 1876, Section 2. - LOC_PRIMEMERIDIAN = 1 << 31 // RFC 1876, Section 2. - LOC_HOURS = 60 * 1000 - LOC_DEGREES = 60 * LOC_HOURS - LOC_ALTITUDEBASE = 100000 -) - -// Different Certificate Types, see RFC 4398, Section 2.1 -const ( - CertPKIX = 1 + iota - CertSPKI - CertPGP - CertIPIX - CertISPKI - CertIPGP - CertACPKIX - CertIACPKIX - CertURI = 253 - CertOID = 254 -) - -// CertTypeToString converts the Cert Type to its string representation. -// See RFC 4398 and RFC 6944. -var CertTypeToString = map[uint16]string{ - CertPKIX: "PKIX", - CertSPKI: "SPKI", - CertPGP: "PGP", - CertIPIX: "IPIX", - CertISPKI: "ISPKI", - CertIPGP: "IPGP", - CertACPKIX: "ACPKIX", - CertIACPKIX: "IACPKIX", - CertURI: "URI", - CertOID: "OID", -} - -// Prefix for IPv4 encoded as IPv6 address -const ipv4InIPv6Prefix = "::ffff:" - -//go:generate go run types_generate.go - -// Question holds a DNS question. Usually there is just one. While the -// original DNS RFCs allow multiple questions in the question section of a -// message, in practice it never works. Because most DNS servers see multiple -// questions as an error, it is recommended to only have one question per -// message. -type Question struct { - Name string `dns:"cdomain-name"` // "cdomain-name" specifies encoding (and may be compressed) - Qtype uint16 - Qclass uint16 -} - -func (q *Question) len(off int, compression map[string]struct{}) int { - l := domainNameLen(q.Name, off, compression, true) - l += 2 + 2 - return l -} - -func (q *Question) String() (s string) { - // prefix with ; (as in dig) - s = ";" + sprintName(q.Name) + "\t" - s += Class(q.Qclass).String() + "\t" - s += " " + Type(q.Qtype).String() - return s -} - -// ANY is a wild card record. See RFC 1035, Section 3.2.3. ANY is named "*" there. -// The ANY records can be (ab)used to create resource records without any rdata, that -// can be used in dynamic update requests. Basic use pattern: -// -// a := &ANY{RR_Header{ -// Name: "example.org.", -// Rrtype: TypeA, -// Class: ClassINET, -// }} -// -// Results in an A record without rdata. -type ANY struct { - Hdr RR_Header - // Does not have any rdata. -} - -func (rr *ANY) String() string { return rr.Hdr.String() } - -func (*ANY) parse(c *zlexer, origin string) *ParseError { - return &ParseError{err: "ANY records do not have a presentation format"} -} - -// NULL RR. See RFC 1035. -type NULL struct { - Hdr RR_Header - Data string `dns:"any"` -} - -func (rr *NULL) String() string { - // There is no presentation format; prefix string with a comment. - return ";" + rr.Hdr.String() + rr.Data -} - -func (*NULL) parse(c *zlexer, origin string) *ParseError { - return &ParseError{err: "NULL records do not have a presentation format"} -} - -// NXNAME is a meta record. See https://www.iana.org/go/draft-ietf-dnsop-compact-denial-of-existence-04 -// Reference: https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml -type NXNAME struct { - Hdr RR_Header - // Does not have any rdata -} - -func (rr *NXNAME) String() string { return rr.Hdr.String() } - -func (*NXNAME) parse(c *zlexer, origin string) *ParseError { - return &ParseError{err: "NXNAME records do not have a presentation format"} -} - -// CNAME RR. See RFC 1034. -type CNAME struct { - Hdr RR_Header - Target string `dns:"cdomain-name"` -} - -func (rr *CNAME) String() string { return rr.Hdr.String() + sprintName(rr.Target) } - -// HINFO RR. See RFC 1034. -type HINFO struct { - Hdr RR_Header - Cpu string - Os string -} - -func (rr *HINFO) String() string { - return rr.Hdr.String() + sprintTxt([]string{rr.Cpu, rr.Os}) -} - -// MB RR. See RFC 1035. -type MB struct { - Hdr RR_Header - Mb string `dns:"cdomain-name"` -} - -func (rr *MB) String() string { return rr.Hdr.String() + sprintName(rr.Mb) } - -// MG RR. See RFC 1035. -type MG struct { - Hdr RR_Header - Mg string `dns:"cdomain-name"` -} - -func (rr *MG) String() string { return rr.Hdr.String() + sprintName(rr.Mg) } - -// MINFO RR. See RFC 1035. -type MINFO struct { - Hdr RR_Header - Rmail string `dns:"cdomain-name"` - Email string `dns:"cdomain-name"` -} - -func (rr *MINFO) String() string { - return rr.Hdr.String() + sprintName(rr.Rmail) + " " + sprintName(rr.Email) -} - -// MR RR. See RFC 1035. -type MR struct { - Hdr RR_Header - Mr string `dns:"cdomain-name"` -} - -func (rr *MR) String() string { - return rr.Hdr.String() + sprintName(rr.Mr) -} - -// MF RR. See RFC 1035. -type MF struct { - Hdr RR_Header - Mf string `dns:"cdomain-name"` -} - -func (rr *MF) String() string { - return rr.Hdr.String() + sprintName(rr.Mf) -} - -// MD RR. See RFC 1035. -type MD struct { - Hdr RR_Header - Md string `dns:"cdomain-name"` -} - -func (rr *MD) String() string { - return rr.Hdr.String() + sprintName(rr.Md) -} - -// MX RR. See RFC 1035. -type MX struct { - Hdr RR_Header - Preference uint16 - Mx string `dns:"cdomain-name"` -} - -func (rr *MX) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Mx) -} - -// AFSDB RR. See RFC 1183. -type AFSDB struct { - Hdr RR_Header - Subtype uint16 - Hostname string `dns:"domain-name"` -} - -func (rr *AFSDB) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Subtype)) + " " + sprintName(rr.Hostname) -} - -// X25 RR. See RFC 1183, Section 3.1. -type X25 struct { - Hdr RR_Header - PSDNAddress string -} - -func (rr *X25) String() string { - return rr.Hdr.String() + rr.PSDNAddress -} - -// ISDN RR. See RFC 1183, Section 3.2. -type ISDN struct { - Hdr RR_Header - Address string - SubAddress string -} - -func (rr *ISDN) String() string { - return rr.Hdr.String() + sprintTxt([]string{rr.Address, rr.SubAddress}) -} - -// RT RR. See RFC 1183, Section 3.3. -type RT struct { - Hdr RR_Header - Preference uint16 - Host string `dns:"domain-name"` // RFC 3597 prohibits compressing records not defined in RFC 1035. -} - -func (rr *RT) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Host) -} - -// NS RR. See RFC 1035. -type NS struct { - Hdr RR_Header - Ns string `dns:"cdomain-name"` -} - -func (rr *NS) String() string { - return rr.Hdr.String() + sprintName(rr.Ns) -} - -// PTR RR. See RFC 1035. -type PTR struct { - Hdr RR_Header - Ptr string `dns:"cdomain-name"` -} - -func (rr *PTR) String() string { - return rr.Hdr.String() + sprintName(rr.Ptr) -} - -// RP RR. See RFC 1138, Section 2.2. -type RP struct { - Hdr RR_Header - Mbox string `dns:"domain-name"` - Txt string `dns:"domain-name"` -} - -func (rr *RP) String() string { - return rr.Hdr.String() + sprintName(rr.Mbox) + " " + sprintName(rr.Txt) -} - -// SOA RR. See RFC 1035. -type SOA struct { - Hdr RR_Header - Ns string `dns:"cdomain-name"` - Mbox string `dns:"cdomain-name"` - Serial uint32 - Refresh uint32 - Retry uint32 - Expire uint32 - Minttl uint32 -} - -func (rr *SOA) String() string { - return rr.Hdr.String() + sprintName(rr.Ns) + " " + sprintName(rr.Mbox) + - " " + strconv.FormatInt(int64(rr.Serial), 10) + - " " + strconv.FormatInt(int64(rr.Refresh), 10) + - " " + strconv.FormatInt(int64(rr.Retry), 10) + - " " + strconv.FormatInt(int64(rr.Expire), 10) + - " " + strconv.FormatInt(int64(rr.Minttl), 10) -} - -// TXT RR. See RFC 1035. -type TXT struct { - Hdr RR_Header - Txt []string `dns:"txt"` -} - -func (rr *TXT) String() string { return rr.Hdr.String() + sprintTxt(rr.Txt) } - -func sprintName(s string) string { - var dst strings.Builder - - for i := 0; i < len(s); { - if s[i] == '.' { - if dst.Len() != 0 { - dst.WriteByte('.') - } - i++ - continue - } - - b, n := nextByte(s, i) - if n == 0 { - // Drop "dangling" incomplete escapes. - if dst.Len() == 0 { - return s[:i] - } - break - } - if isDomainNameLabelSpecial(b) { - if dst.Len() == 0 { - dst.Grow(len(s) * 2) - dst.WriteString(s[:i]) - } - dst.WriteByte('\\') - dst.WriteByte(b) - } else if b < ' ' || b > '~' { // unprintable, use \DDD - if dst.Len() == 0 { - dst.Grow(len(s) * 2) - dst.WriteString(s[:i]) - } - dst.WriteString(escapeByte(b)) - } else { - if dst.Len() != 0 { - dst.WriteByte(b) - } - } - i += n - } - if dst.Len() == 0 { - return s - } - return dst.String() -} - -func sprintTxtOctet(s string) string { - var dst strings.Builder - dst.Grow(2 + len(s)) - dst.WriteByte('"') - for i := 0; i < len(s); { - if i+1 < len(s) && s[i] == '\\' && s[i+1] == '.' { - dst.WriteString(s[i : i+2]) - i += 2 - continue - } - - b, n := nextByte(s, i) - if n == 0 { - i++ // dangling back slash - } else { - writeTXTStringByte(&dst, b) - } - i += n - } - dst.WriteByte('"') - return dst.String() -} - -func sprintTxt(txt []string) string { - var out strings.Builder - for i, s := range txt { - out.Grow(3 + len(s)) - if i > 0 { - out.WriteString(` "`) - } else { - out.WriteByte('"') - } - for j := 0; j < len(s); { - b, n := nextByte(s, j) - if n == 0 { - break - } - writeTXTStringByte(&out, b) - j += n - } - out.WriteByte('"') - } - return out.String() -} - -func writeTXTStringByte(s *strings.Builder, b byte) { - switch { - case b == '"' || b == '\\': - s.WriteByte('\\') - s.WriteByte(b) - case b < ' ' || b > '~': - s.WriteString(escapeByte(b)) - default: - s.WriteByte(b) - } -} - -const ( - escapedByteSmall = "" + - `\000\001\002\003\004\005\006\007\008\009` + - `\010\011\012\013\014\015\016\017\018\019` + - `\020\021\022\023\024\025\026\027\028\029` + - `\030\031` - escapedByteLarge = `\127\128\129` + - `\130\131\132\133\134\135\136\137\138\139` + - `\140\141\142\143\144\145\146\147\148\149` + - `\150\151\152\153\154\155\156\157\158\159` + - `\160\161\162\163\164\165\166\167\168\169` + - `\170\171\172\173\174\175\176\177\178\179` + - `\180\181\182\183\184\185\186\187\188\189` + - `\190\191\192\193\194\195\196\197\198\199` + - `\200\201\202\203\204\205\206\207\208\209` + - `\210\211\212\213\214\215\216\217\218\219` + - `\220\221\222\223\224\225\226\227\228\229` + - `\230\231\232\233\234\235\236\237\238\239` + - `\240\241\242\243\244\245\246\247\248\249` + - `\250\251\252\253\254\255` -) - -// escapeByte returns the \DDD escaping of b which must -// satisfy b < ' ' || b > '~'. -func escapeByte(b byte) string { - if b < ' ' { - return escapedByteSmall[b*4 : b*4+4] - } - - b -= '~' + 1 - // The cast here is needed as b*4 may overflow byte. - return escapedByteLarge[int(b)*4 : int(b)*4+4] -} - -// isDomainNameLabelSpecial returns true if -// a domain name label byte should be prefixed -// with an escaping backslash. -func isDomainNameLabelSpecial(b byte) bool { - switch b { - case '.', ' ', '\'', '@', ';', '(', ')', '"', '\\': - return true - } - return false -} - -func nextByte(s string, offset int) (byte, int) { - if offset >= len(s) { - return 0, 0 - } - if s[offset] != '\\' { - // not an escape sequence - return s[offset], 1 - } - switch len(s) - offset { - case 1: // dangling escape - return 0, 0 - case 2, 3: // too short to be \ddd - default: // maybe \ddd - if isDDD(s[offset+1:]) { - return dddToByte(s[offset+1:]), 4 - } - } - // not \ddd, just an RFC 1035 "quoted" character - return s[offset+1], 2 -} - -// SPF RR. See RFC 4408, Section 3.1.1. -type SPF struct { - Hdr RR_Header - Txt []string `dns:"txt"` -} - -func (rr *SPF) String() string { return rr.Hdr.String() + sprintTxt(rr.Txt) } - -// AVC RR. See https://www.iana.org/assignments/dns-parameters/AVC/avc-completed-template. -type AVC struct { - Hdr RR_Header - Txt []string `dns:"txt"` -} - -func (rr *AVC) String() string { return rr.Hdr.String() + sprintTxt(rr.Txt) } - -// SRV RR. See RFC 2782. -type SRV struct { - Hdr RR_Header - Priority uint16 - Weight uint16 - Port uint16 - Target string `dns:"domain-name"` -} - -func (rr *SRV) String() string { - return rr.Hdr.String() + - strconv.Itoa(int(rr.Priority)) + " " + - strconv.Itoa(int(rr.Weight)) + " " + - strconv.Itoa(int(rr.Port)) + " " + sprintName(rr.Target) -} - -// NAPTR RR. See RFC 2915. -type NAPTR struct { - Hdr RR_Header - Order uint16 - Preference uint16 - Flags string - Service string - Regexp string - Replacement string `dns:"domain-name"` -} - -func (rr *NAPTR) String() string { - return rr.Hdr.String() + - strconv.Itoa(int(rr.Order)) + " " + - strconv.Itoa(int(rr.Preference)) + " " + - "\"" + rr.Flags + "\" " + - "\"" + rr.Service + "\" " + - "\"" + rr.Regexp + "\" " + - rr.Replacement -} - -// CERT RR. See RFC 4398. -type CERT struct { - Hdr RR_Header - Type uint16 - KeyTag uint16 - Algorithm uint8 - Certificate string `dns:"base64"` -} - -func (rr *CERT) String() string { - var ( - ok bool - certtype, algorithm string - ) - if certtype, ok = CertTypeToString[rr.Type]; !ok { - certtype = strconv.Itoa(int(rr.Type)) - } - if algorithm, ok = AlgorithmToString[rr.Algorithm]; !ok { - algorithm = strconv.Itoa(int(rr.Algorithm)) - } - return rr.Hdr.String() + certtype + - " " + strconv.Itoa(int(rr.KeyTag)) + - " " + algorithm + - " " + rr.Certificate -} - -// DNAME RR. See RFC 2672. -type DNAME struct { - Hdr RR_Header - Target string `dns:"domain-name"` -} - -func (rr *DNAME) String() string { - return rr.Hdr.String() + sprintName(rr.Target) -} - -// A RR. See RFC 1035. -type A struct { - Hdr RR_Header - A net.IP `dns:"a"` -} - -func (rr *A) String() string { - if rr.A == nil { - return rr.Hdr.String() - } - return rr.Hdr.String() + rr.A.String() -} - -// AAAA RR. See RFC 3596. -type AAAA struct { - Hdr RR_Header - AAAA net.IP `dns:"aaaa"` -} - -func (rr *AAAA) String() string { - if rr.AAAA == nil { - return rr.Hdr.String() - } - - if rr.AAAA.To4() != nil { - return rr.Hdr.String() + ipv4InIPv6Prefix + rr.AAAA.String() - } - - return rr.Hdr.String() + rr.AAAA.String() -} - -// PX RR. See RFC 2163. -type PX struct { - Hdr RR_Header - Preference uint16 - Map822 string `dns:"domain-name"` - Mapx400 string `dns:"domain-name"` -} - -func (rr *PX) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Map822) + " " + sprintName(rr.Mapx400) -} - -// GPOS RR. See RFC 1712. -type GPOS struct { - Hdr RR_Header - Longitude string - Latitude string - Altitude string -} - -func (rr *GPOS) String() string { - return rr.Hdr.String() + rr.Longitude + " " + rr.Latitude + " " + rr.Altitude -} - -// LOC RR. See RFC 1876. -type LOC struct { - Hdr RR_Header - Version uint8 - Size uint8 - HorizPre uint8 - VertPre uint8 - Latitude uint32 - Longitude uint32 - Altitude uint32 -} - -// cmToM takes a cm value expressed in RFC 1876 SIZE mantissa/exponent -// format and returns a string in m (two decimals for the cm). -func cmToM(x uint8) string { - m := x & 0xf0 >> 4 - e := x & 0x0f - - if e < 2 { - if e == 1 { - m *= 10 - } - - return fmt.Sprintf("0.%02d", m) - } - - s := fmt.Sprintf("%d", m) - for e > 2 { - s += "0" - e-- - } - return s -} - -func (rr *LOC) String() string { - s := rr.Hdr.String() - - lat := rr.Latitude - ns := "N" - if lat > LOC_EQUATOR { - lat = lat - LOC_EQUATOR - } else { - ns = "S" - lat = LOC_EQUATOR - lat - } - h := lat / LOC_DEGREES - lat = lat % LOC_DEGREES - m := lat / LOC_HOURS - lat = lat % LOC_HOURS - s += fmt.Sprintf("%02d %02d %0.3f %s ", h, m, float64(lat)/1000, ns) - - lon := rr.Longitude - ew := "E" - if lon > LOC_PRIMEMERIDIAN { - lon = lon - LOC_PRIMEMERIDIAN - } else { - ew = "W" - lon = LOC_PRIMEMERIDIAN - lon - } - h = lon / LOC_DEGREES - lon = lon % LOC_DEGREES - m = lon / LOC_HOURS - lon = lon % LOC_HOURS - s += fmt.Sprintf("%02d %02d %0.3f %s ", h, m, float64(lon)/1000, ew) - - alt := float64(rr.Altitude) / 100 - alt -= LOC_ALTITUDEBASE - if rr.Altitude%100 != 0 { - s += fmt.Sprintf("%.2fm ", alt) - } else { - s += fmt.Sprintf("%.0fm ", alt) - } - - s += cmToM(rr.Size) + "m " - s += cmToM(rr.HorizPre) + "m " - s += cmToM(rr.VertPre) + "m" - return s -} - -// SIG RR. See RFC 2535. The SIG RR is identical to RRSIG and nowadays only used for SIG(0), See RFC 2931. -type SIG struct { - RRSIG -} - -// RRSIG RR. See RFC 4034 and RFC 3755. -type RRSIG struct { - Hdr RR_Header - TypeCovered uint16 - Algorithm uint8 - Labels uint8 - OrigTtl uint32 - Expiration uint32 - Inception uint32 - KeyTag uint16 - SignerName string `dns:"domain-name"` - Signature string `dns:"base64"` -} - -func (rr *RRSIG) String() string { - s := rr.Hdr.String() - s += Type(rr.TypeCovered).String() - s += " " + strconv.Itoa(int(rr.Algorithm)) + - " " + strconv.Itoa(int(rr.Labels)) + - " " + strconv.FormatInt(int64(rr.OrigTtl), 10) + - " " + TimeToString(rr.Expiration) + - " " + TimeToString(rr.Inception) + - " " + strconv.Itoa(int(rr.KeyTag)) + - " " + sprintName(rr.SignerName) + - " " + rr.Signature - return s -} - -// NXT RR. See RFC 2535. -type NXT struct { - NSEC -} - -// NSEC RR. See RFC 4034 and RFC 3755. -type NSEC struct { - Hdr RR_Header - NextDomain string `dns:"domain-name"` - TypeBitMap []uint16 `dns:"nsec"` -} - -func (rr *NSEC) String() string { - s := rr.Hdr.String() + sprintName(rr.NextDomain) - for _, t := range rr.TypeBitMap { - s += " " + Type(t).String() - } - return s -} - -func (rr *NSEC) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.NextDomain, off+l, compression, false) - l += typeBitMapLen(rr.TypeBitMap) - return l -} - -// DLV RR. See RFC 4431. -type DLV struct{ DS } - -// CDS RR. See RFC 7344. -type CDS struct{ DS } - -// DS RR. See RFC 4034 and RFC 3658. -type DS struct { - Hdr RR_Header - KeyTag uint16 - Algorithm uint8 - DigestType uint8 - Digest string `dns:"hex"` -} - -func (rr *DS) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.KeyTag)) + - " " + strconv.Itoa(int(rr.Algorithm)) + - " " + strconv.Itoa(int(rr.DigestType)) + - " " + strings.ToUpper(rr.Digest) -} - -// KX RR. See RFC 2230. -type KX struct { - Hdr RR_Header - Preference uint16 - Exchanger string `dns:"domain-name"` -} - -func (rr *KX) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + - " " + sprintName(rr.Exchanger) -} - -// TA RR. See http://www.watson.org/~weiler/INI1999-19.pdf. -type TA struct { - Hdr RR_Header - KeyTag uint16 - Algorithm uint8 - DigestType uint8 - Digest string `dns:"hex"` -} - -func (rr *TA) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.KeyTag)) + - " " + strconv.Itoa(int(rr.Algorithm)) + - " " + strconv.Itoa(int(rr.DigestType)) + - " " + strings.ToUpper(rr.Digest) -} - -// TALINK RR. See https://www.iana.org/assignments/dns-parameters/TALINK/talink-completed-template. -type TALINK struct { - Hdr RR_Header - PreviousName string `dns:"domain-name"` - NextName string `dns:"domain-name"` -} - -func (rr *TALINK) String() string { - return rr.Hdr.String() + - sprintName(rr.PreviousName) + " " + sprintName(rr.NextName) -} - -// SSHFP RR. See RFC 4255. -type SSHFP struct { - Hdr RR_Header - Algorithm uint8 - Type uint8 - FingerPrint string `dns:"hex"` -} - -func (rr *SSHFP) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Algorithm)) + - " " + strconv.Itoa(int(rr.Type)) + - " " + strings.ToUpper(rr.FingerPrint) -} - -// KEY RR. See RFC 2535. -type KEY struct { - DNSKEY -} - -// CDNSKEY RR. See RFC 7344. -type CDNSKEY struct { - DNSKEY -} - -// DNSKEY RR. See RFC 4034 and RFC 3755. -type DNSKEY struct { - Hdr RR_Header - Flags uint16 - Protocol uint8 - Algorithm uint8 - PublicKey string `dns:"base64"` -} - -func (rr *DNSKEY) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Flags)) + - " " + strconv.Itoa(int(rr.Protocol)) + - " " + strconv.Itoa(int(rr.Algorithm)) + - " " + rr.PublicKey -} - -// IPSECKEY RR. See RFC 4025. -type IPSECKEY struct { - Hdr RR_Header - Precedence uint8 - GatewayType uint8 - Algorithm uint8 - GatewayAddr net.IP `dns:"-"` // packing/unpacking/parsing/etc handled together with GatewayHost - GatewayHost string `dns:"ipsechost"` - PublicKey string `dns:"base64"` -} - -func (rr *IPSECKEY) String() string { - var gateway string - switch rr.GatewayType { - case IPSECGatewayIPv4, IPSECGatewayIPv6: - gateway = rr.GatewayAddr.String() - case IPSECGatewayHost: - gateway = rr.GatewayHost - case IPSECGatewayNone: - fallthrough - default: - gateway = "." - } - - return rr.Hdr.String() + strconv.Itoa(int(rr.Precedence)) + - " " + strconv.Itoa(int(rr.GatewayType)) + - " " + strconv.Itoa(int(rr.Algorithm)) + - " " + gateway + - " " + rr.PublicKey -} - -// AMTRELAY RR. See RFC 8777. -type AMTRELAY struct { - Hdr RR_Header - Precedence uint8 - GatewayType uint8 // discovery is packed in here at bit 0x80 - GatewayAddr net.IP `dns:"-"` // packing/unpacking/parsing/etc handled together with GatewayHost - GatewayHost string `dns:"amtrelayhost"` -} - -func (rr *AMTRELAY) String() string { - var gateway string - switch rr.GatewayType & 0x7f { - case AMTRELAYIPv4, AMTRELAYIPv6: - gateway = rr.GatewayAddr.String() - case AMTRELAYHost: - gateway = rr.GatewayHost - case AMTRELAYNone: - fallthrough - default: - gateway = "." - } - boolS := "0" - if rr.GatewayType&0x80 == 0x80 { - boolS = "1" - } - - return rr.Hdr.String() + strconv.Itoa(int(rr.Precedence)) + - " " + boolS + - " " + strconv.Itoa(int(rr.GatewayType&0x7f)) + - " " + gateway -} - -// RKEY RR. See https://www.iana.org/assignments/dns-parameters/RKEY/rkey-completed-template. -type RKEY struct { - Hdr RR_Header - Flags uint16 - Protocol uint8 - Algorithm uint8 - PublicKey string `dns:"base64"` -} - -func (rr *RKEY) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Flags)) + - " " + strconv.Itoa(int(rr.Protocol)) + - " " + strconv.Itoa(int(rr.Algorithm)) + - " " + rr.PublicKey -} - -// NSAPPTR RR. See RFC 1348. -type NSAPPTR struct { - Hdr RR_Header - Ptr string `dns:"domain-name"` -} - -func (rr *NSAPPTR) String() string { return rr.Hdr.String() + sprintName(rr.Ptr) } - -// NSEC3 RR. See RFC 5155. -type NSEC3 struct { - Hdr RR_Header - Hash uint8 - Flags uint8 - Iterations uint16 - SaltLength uint8 - Salt string `dns:"size-hex:SaltLength"` - HashLength uint8 - NextDomain string `dns:"size-base32:HashLength"` - TypeBitMap []uint16 `dns:"nsec"` -} - -func (rr *NSEC3) String() string { - s := rr.Hdr.String() - s += strconv.Itoa(int(rr.Hash)) + - " " + strconv.Itoa(int(rr.Flags)) + - " " + strconv.Itoa(int(rr.Iterations)) + - " " + saltToString(rr.Salt) + - " " + rr.NextDomain - for _, t := range rr.TypeBitMap { - s += " " + Type(t).String() - } - return s -} - -func (rr *NSEC3) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 6 + len(rr.Salt)/2 + 1 + len(rr.NextDomain) + 1 - l += typeBitMapLen(rr.TypeBitMap) - return l -} - -// NSEC3PARAM RR. See RFC 5155. -type NSEC3PARAM struct { - Hdr RR_Header - Hash uint8 - Flags uint8 - Iterations uint16 - SaltLength uint8 - Salt string `dns:"size-hex:SaltLength"` -} - -func (rr *NSEC3PARAM) String() string { - s := rr.Hdr.String() - s += strconv.Itoa(int(rr.Hash)) + - " " + strconv.Itoa(int(rr.Flags)) + - " " + strconv.Itoa(int(rr.Iterations)) + - " " + saltToString(rr.Salt) - return s -} - -// TKEY RR. See RFC 2930. -type TKEY struct { - Hdr RR_Header - Algorithm string `dns:"domain-name"` - Inception uint32 - Expiration uint32 - Mode uint16 - Error uint16 - KeySize uint16 - Key string `dns:"size-hex:KeySize"` - OtherLen uint16 - OtherData string `dns:"size-hex:OtherLen"` -} - -// TKEY has no official presentation format, but this will suffice. -func (rr *TKEY) String() string { - s := ";" + rr.Hdr.String() + - " " + rr.Algorithm + - " " + TimeToString(rr.Inception) + - " " + TimeToString(rr.Expiration) + - " " + strconv.Itoa(int(rr.Mode)) + - " " + strconv.Itoa(int(rr.Error)) + - " " + strconv.Itoa(int(rr.KeySize)) + - " " + rr.Key + - " " + strconv.Itoa(int(rr.OtherLen)) + - " " + rr.OtherData - return s -} - -// RFC3597 represents an unknown/generic RR. See RFC 3597. -type RFC3597 struct { - Hdr RR_Header - Rdata string `dns:"hex"` -} - -func (rr *RFC3597) String() string { - // Let's call it a hack - s := rfc3597Header(rr.Hdr) - - s += "\\# " + strconv.Itoa(len(rr.Rdata)/2) + " " + rr.Rdata - return s -} - -func rfc3597Header(h RR_Header) string { - var s string - - s += sprintName(h.Name) + "\t" - s += strconv.FormatInt(int64(h.Ttl), 10) + "\t" - s += "CLASS" + strconv.Itoa(int(h.Class)) + "\t" - s += "TYPE" + strconv.Itoa(int(h.Rrtype)) + "\t" - return s -} - -// URI RR. See RFC 7553. -type URI struct { - Hdr RR_Header - Priority uint16 - Weight uint16 - Target string `dns:"octet"` -} - -// rr.Target to be parsed as a sequence of character encoded octets according to RFC 3986 -func (rr *URI) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Priority)) + - " " + strconv.Itoa(int(rr.Weight)) + " " + sprintTxtOctet(rr.Target) -} - -// DHCID RR. See RFC 4701. -type DHCID struct { - Hdr RR_Header - Digest string `dns:"base64"` -} - -func (rr *DHCID) String() string { return rr.Hdr.String() + rr.Digest } - -// TLSA RR. See RFC 6698. -type TLSA struct { - Hdr RR_Header - Usage uint8 - Selector uint8 - MatchingType uint8 - Certificate string `dns:"hex"` -} - -func (rr *TLSA) String() string { - return rr.Hdr.String() + - strconv.Itoa(int(rr.Usage)) + - " " + strconv.Itoa(int(rr.Selector)) + - " " + strconv.Itoa(int(rr.MatchingType)) + - " " + rr.Certificate -} - -// SMIMEA RR. See RFC 8162. -type SMIMEA struct { - Hdr RR_Header - Usage uint8 - Selector uint8 - MatchingType uint8 - Certificate string `dns:"hex"` -} - -func (rr *SMIMEA) String() string { - s := rr.Hdr.String() + - strconv.Itoa(int(rr.Usage)) + - " " + strconv.Itoa(int(rr.Selector)) + - " " + strconv.Itoa(int(rr.MatchingType)) - - // Every Nth char needs a space on this output. If we output - // this as one giant line, we can't read it can in because in some cases - // the cert length overflows scan.maxTok (2048). - sx := splitN(rr.Certificate, 1024) // conservative value here - s += " " + strings.Join(sx, " ") - return s -} - -// HIP RR. See RFC 8005. -type HIP struct { - Hdr RR_Header - HitLength uint8 - PublicKeyAlgorithm uint8 - PublicKeyLength uint16 - Hit string `dns:"size-hex:HitLength"` - PublicKey string `dns:"size-base64:PublicKeyLength"` - RendezvousServers []string `dns:"domain-name"` -} - -func (rr *HIP) String() string { - s := rr.Hdr.String() + - strconv.Itoa(int(rr.PublicKeyAlgorithm)) + - " " + rr.Hit + - " " + rr.PublicKey - for _, d := range rr.RendezvousServers { - s += " " + sprintName(d) - } - return s -} - -// NINFO RR. See https://www.iana.org/assignments/dns-parameters/NINFO/ninfo-completed-template. -type NINFO struct { - Hdr RR_Header - ZSData []string `dns:"txt"` -} - -func (rr *NINFO) String() string { return rr.Hdr.String() + sprintTxt(rr.ZSData) } - -// NID RR. See RFC 6742. -type NID struct { - Hdr RR_Header - Preference uint16 - NodeID uint64 -} - -func (rr *NID) String() string { - s := rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) - node := fmt.Sprintf("%0.16x", rr.NodeID) - s += " " + node[0:4] + ":" + node[4:8] + ":" + node[8:12] + ":" + node[12:16] - return s -} - -// L32 RR, See RFC 6742. -type L32 struct { - Hdr RR_Header - Preference uint16 - Locator32 net.IP `dns:"a"` -} - -func (rr *L32) String() string { - if rr.Locator32 == nil { - return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) - } - return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + - " " + rr.Locator32.String() -} - -// L64 RR, See RFC 6742. -type L64 struct { - Hdr RR_Header - Preference uint16 - Locator64 uint64 -} - -func (rr *L64) String() string { - s := rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) - node := fmt.Sprintf("%0.16X", rr.Locator64) - s += " " + node[0:4] + ":" + node[4:8] + ":" + node[8:12] + ":" + node[12:16] - return s -} - -// LP RR. See RFC 6742. -type LP struct { - Hdr RR_Header - Preference uint16 - Fqdn string `dns:"domain-name"` -} - -func (rr *LP) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Fqdn) -} - -// EUI48 RR. See RFC 7043. -type EUI48 struct { - Hdr RR_Header - Address uint64 `dns:"uint48"` -} - -func (rr *EUI48) String() string { return rr.Hdr.String() + euiToString(rr.Address, 48) } - -// EUI64 RR. See RFC 7043. -type EUI64 struct { - Hdr RR_Header - Address uint64 -} - -func (rr *EUI64) String() string { return rr.Hdr.String() + euiToString(rr.Address, 64) } - -// CAA RR. See RFC 6844. -type CAA struct { - Hdr RR_Header - Flag uint8 - Tag string - Value string `dns:"octet"` -} - -// rr.Value Is the character-string encoding of the value field as specified in RFC 1035, Section 5.1. -func (rr *CAA) String() string { - return rr.Hdr.String() + strconv.Itoa(int(rr.Flag)) + " " + rr.Tag + " " + sprintTxtOctet(rr.Value) -} - -// UID RR. Deprecated, IANA-Reserved. -type UID struct { - Hdr RR_Header - Uid uint32 -} - -func (rr *UID) String() string { return rr.Hdr.String() + strconv.FormatInt(int64(rr.Uid), 10) } - -// GID RR. Deprecated, IANA-Reserved. -type GID struct { - Hdr RR_Header - Gid uint32 -} - -func (rr *GID) String() string { return rr.Hdr.String() + strconv.FormatInt(int64(rr.Gid), 10) } - -// UINFO RR. Deprecated, IANA-Reserved. -type UINFO struct { - Hdr RR_Header - Uinfo string -} - -func (rr *UINFO) String() string { return rr.Hdr.String() + sprintTxt([]string{rr.Uinfo}) } - -// EID RR. See http://ana-3.lcs.mit.edu/~jnc/nimrod/dns.txt. -type EID struct { - Hdr RR_Header - Endpoint string `dns:"hex"` -} - -func (rr *EID) String() string { return rr.Hdr.String() + strings.ToUpper(rr.Endpoint) } - -// NIMLOC RR. See http://ana-3.lcs.mit.edu/~jnc/nimrod/dns.txt. -type NIMLOC struct { - Hdr RR_Header - Locator string `dns:"hex"` -} - -func (rr *NIMLOC) String() string { return rr.Hdr.String() + strings.ToUpper(rr.Locator) } - -// OPENPGPKEY RR. See RFC 7929. -type OPENPGPKEY struct { - Hdr RR_Header - PublicKey string `dns:"base64"` -} - -func (rr *OPENPGPKEY) String() string { return rr.Hdr.String() + rr.PublicKey } - -// CSYNC RR. See RFC 7477. -type CSYNC struct { - Hdr RR_Header - Serial uint32 - Flags uint16 - TypeBitMap []uint16 `dns:"nsec"` -} - -func (rr *CSYNC) String() string { - s := rr.Hdr.String() + strconv.FormatInt(int64(rr.Serial), 10) + " " + strconv.Itoa(int(rr.Flags)) - - for _, t := range rr.TypeBitMap { - s += " " + Type(t).String() - } - return s -} - -func (rr *CSYNC) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 4 + 2 - l += typeBitMapLen(rr.TypeBitMap) - return l -} - -// ZONEMD RR, from draft-ietf-dnsop-dns-zone-digest -type ZONEMD struct { - Hdr RR_Header - Serial uint32 - Scheme uint8 - Hash uint8 - Digest string `dns:"hex"` -} - -func (rr *ZONEMD) String() string { - return rr.Hdr.String() + - strconv.Itoa(int(rr.Serial)) + - " " + strconv.Itoa(int(rr.Scheme)) + - " " + strconv.Itoa(int(rr.Hash)) + - " " + rr.Digest -} - -// RESINFO RR. See RFC 9606. - -type RESINFO struct { - Hdr RR_Header - Txt []string `dns:"txt"` -} - -func (rr *RESINFO) String() string { return rr.Hdr.String() + sprintTxt(rr.Txt) } - -// APL RR. See RFC 3123. -type APL struct { - Hdr RR_Header - Prefixes []APLPrefix `dns:"apl"` -} - -// APLPrefix is an address prefix hold by an APL record. -type APLPrefix struct { - Negation bool - Network net.IPNet -} - -// String returns presentation form of the APL record. -func (rr *APL) String() string { - var sb strings.Builder - sb.WriteString(rr.Hdr.String()) - for i, p := range rr.Prefixes { - if i > 0 { - sb.WriteByte(' ') - } - sb.WriteString(p.str()) - } - return sb.String() -} - -// str returns presentation form of the APL prefix. -func (a *APLPrefix) str() string { - var sb strings.Builder - if a.Negation { - sb.WriteByte('!') - } - - switch len(a.Network.IP) { - case net.IPv4len: - sb.WriteByte('1') - case net.IPv6len: - sb.WriteByte('2') - } - - sb.WriteByte(':') - - switch len(a.Network.IP) { - case net.IPv4len: - sb.WriteString(a.Network.IP.String()) - case net.IPv6len: - // add prefix for IPv4-mapped IPv6 - if v4 := a.Network.IP.To4(); v4 != nil { - sb.WriteString(ipv4InIPv6Prefix) - } - sb.WriteString(a.Network.IP.String()) - } - - sb.WriteByte('/') - - prefix, _ := a.Network.Mask.Size() - sb.WriteString(strconv.Itoa(prefix)) - - return sb.String() -} - -// equals reports whether two APL prefixes are identical. -func (a *APLPrefix) equals(b *APLPrefix) bool { - return a.Negation == b.Negation && - a.Network.IP.Equal(b.Network.IP) && - bytes.Equal(a.Network.Mask, b.Network.Mask) -} - -// copy returns a copy of the APL prefix. -func (a *APLPrefix) copy() APLPrefix { - return APLPrefix{ - Negation: a.Negation, - Network: copyNet(a.Network), - } -} - -// len returns size of the prefix in wire format. -func (a *APLPrefix) len() int { - // 4-byte header and the network address prefix (see Section 4 of RFC 3123) - prefix, _ := a.Network.Mask.Size() - return 4 + (prefix+7)/8 -} - -// TimeToString translates the RRSIG's incep. and expir. times to the -// string representation used when printing the record. -// It takes serial arithmetic (RFC 1982) into account. -func TimeToString(t uint32) string { - mod := (int64(t)-time.Now().Unix())/year68 - 1 - if mod < 0 { - mod = 0 - } - ti := time.Unix(int64(t)-mod*year68, 0).UTC() - return ti.Format("20060102150405") -} - -// StringToTime translates the RRSIG's incep. and expir. times from -// string values like "20110403154150" to an 32 bit integer. -// It takes serial arithmetic (RFC 1982) into account. -func StringToTime(s string) (uint32, error) { - t, err := time.Parse("20060102150405", s) - if err != nil { - return 0, err - } - mod := t.Unix()/year68 - 1 - if mod < 0 { - mod = 0 - } - return uint32(t.Unix() - mod*year68), nil -} - -// saltToString converts a NSECX salt to uppercase and returns "-" when it is empty. -func saltToString(s string) string { - if s == "" { - return "-" - } - return strings.ToUpper(s) -} - -func euiToString(eui uint64, bits int) (hex string) { - switch bits { - case 64: - hex = fmt.Sprintf("%16.16x", eui) - hex = hex[0:2] + "-" + hex[2:4] + "-" + hex[4:6] + "-" + hex[6:8] + - "-" + hex[8:10] + "-" + hex[10:12] + "-" + hex[12:14] + "-" + hex[14:16] - case 48: - hex = fmt.Sprintf("%12.12x", eui) - hex = hex[0:2] + "-" + hex[2:4] + "-" + hex[4:6] + "-" + hex[6:8] + - "-" + hex[8:10] + "-" + hex[10:12] - } - return -} - -// cloneSlice returns a shallow copy of s. -func cloneSlice[E any, S ~[]E](s S) S { - if s == nil { - return nil - } - return append(S(nil), s...) -} - -// copyNet returns a copy of a subnet. -func copyNet(n net.IPNet) net.IPNet { - return net.IPNet{ - IP: cloneSlice(n.IP), - Mask: cloneSlice(n.Mask), - } -} - -// SplitN splits a string into N sized string chunks. -// This might become an exported function once. -func splitN(s string, n int) []string { - if len(s) < n { - return []string{s} - } - sx := []string{} - p, i := 0, n - for { - if i <= len(s) { - sx = append(sx, s[p:i]) - } else { - sx = append(sx, s[p:]) - break - - } - p, i = p+n, i+n - } - - return sx -} diff --git a/vendor/github.com/miekg/dns/udp.go b/vendor/github.com/miekg/dns/udp.go deleted file mode 100644 index d226718595..0000000000 --- a/vendor/github.com/miekg/dns/udp.go +++ /dev/null @@ -1,103 +0,0 @@ -//go:build !windows && !darwin -// +build !windows,!darwin - -package dns - -import ( - "net" - - "golang.org/x/net/ipv4" - "golang.org/x/net/ipv6" -) - -// This is the required size of the OOB buffer to pass to ReadMsgUDP. -var udpOOBSize = func() int { - // We can't know whether we'll get an IPv4 control message or an - // IPv6 control message ahead of time. To get around this, we size - // the buffer equal to the largest of the two. - - oob4 := ipv4.NewControlMessage(ipv4.FlagDst | ipv4.FlagInterface) - oob6 := ipv6.NewControlMessage(ipv6.FlagDst | ipv6.FlagInterface) - - if len(oob4) > len(oob6) { - return len(oob4) - } - - return len(oob6) -}() - -// SessionUDP holds the remote address and the associated -// out-of-band data. -type SessionUDP struct { - raddr *net.UDPAddr - context []byte -} - -// RemoteAddr returns the remote network address. -func (s *SessionUDP) RemoteAddr() net.Addr { return s.raddr } - -// ReadFromSessionUDP acts just like net.UDPConn.ReadFrom(), but returns a session object instead of a -// net.UDPAddr. -func ReadFromSessionUDP(conn *net.UDPConn, b []byte) (int, *SessionUDP, error) { - oob := make([]byte, udpOOBSize) - n, oobn, _, raddr, err := conn.ReadMsgUDP(b, oob) - if err != nil { - return n, nil, err - } - return n, &SessionUDP{raddr, oob[:oobn]}, err -} - -// WriteToSessionUDP acts just like net.UDPConn.WriteTo(), but uses a *SessionUDP instead of a net.Addr. -func WriteToSessionUDP(conn *net.UDPConn, b []byte, session *SessionUDP) (int, error) { - oob := correctSource(session.context) - n, _, err := conn.WriteMsgUDP(b, oob, session.raddr) - return n, err -} - -func setUDPSocketOptions(conn *net.UDPConn) error { - // Try setting the flags for both families and ignore the errors unless they - // both error. - err6 := ipv6.NewPacketConn(conn).SetControlMessage(ipv6.FlagDst|ipv6.FlagInterface, true) - err4 := ipv4.NewPacketConn(conn).SetControlMessage(ipv4.FlagDst|ipv4.FlagInterface, true) - if err6 != nil && err4 != nil { - return err4 - } - return nil -} - -// parseDstFromOOB takes oob data and returns the destination IP. -func parseDstFromOOB(oob []byte) net.IP { - // Start with IPv6 and then fallback to IPv4 - // TODO(fastest963): Figure out a way to prefer one or the other. Looking at - // the lvl of the header for a 0 or 41 isn't cross-platform. - cm6 := new(ipv6.ControlMessage) - if cm6.Parse(oob) == nil && cm6.Dst != nil { - return cm6.Dst - } - cm4 := new(ipv4.ControlMessage) - if cm4.Parse(oob) == nil && cm4.Dst != nil { - return cm4.Dst - } - return nil -} - -// correctSource takes oob data and returns new oob data with the Src equal to the Dst -func correctSource(oob []byte) []byte { - dst := parseDstFromOOB(oob) - if dst == nil { - return nil - } - // If the dst is definitely an IPv6, then use ipv6's ControlMessage to - // respond otherwise use ipv4's because ipv6's marshal ignores ipv4 - // addresses. - if dst.To4() == nil { - cm := new(ipv6.ControlMessage) - cm.Src = dst - oob = cm.Marshal() - } else { - cm := new(ipv4.ControlMessage) - cm.Src = dst - oob = cm.Marshal() - } - return oob -} diff --git a/vendor/github.com/miekg/dns/udp_no_control.go b/vendor/github.com/miekg/dns/udp_no_control.go deleted file mode 100644 index ca3d4a633b..0000000000 --- a/vendor/github.com/miekg/dns/udp_no_control.go +++ /dev/null @@ -1,37 +0,0 @@ -//go:build windows || darwin -// +build windows darwin - -// TODO(tmthrgd): Remove this Windows-specific code if go.dev/issue/7175 and -// go.dev/issue/7174 are ever fixed. - -// NOTICE(stek29): darwin supports PKTINFO in sendmsg, but it unbinds sockets, see https://github.com/miekg/dns/issues/724 - -package dns - -import "net" - -// SessionUDP holds the remote address -type SessionUDP struct { - raddr *net.UDPAddr -} - -// RemoteAddr returns the remote network address. -func (s *SessionUDP) RemoteAddr() net.Addr { return s.raddr } - -// ReadFromSessionUDP acts just like net.UDPConn.ReadFrom(), but returns a session object instead of a -// net.UDPAddr. -func ReadFromSessionUDP(conn *net.UDPConn, b []byte) (int, *SessionUDP, error) { - n, raddr, err := conn.ReadFrom(b) - if err != nil { - return n, nil, err - } - return n, &SessionUDP{raddr.(*net.UDPAddr)}, err -} - -// WriteToSessionUDP acts just like net.UDPConn.WriteTo(), but uses a *SessionUDP instead of a net.Addr. -func WriteToSessionUDP(conn *net.UDPConn, b []byte, session *SessionUDP) (int, error) { - return conn.WriteTo(b, session.raddr) -} - -func setUDPSocketOptions(*net.UDPConn) error { return nil } -func parseDstFromOOB([]byte, net.IP) net.IP { return nil } diff --git a/vendor/github.com/miekg/dns/update.go b/vendor/github.com/miekg/dns/update.go deleted file mode 100644 index 2fef1461f5..0000000000 --- a/vendor/github.com/miekg/dns/update.go +++ /dev/null @@ -1,119 +0,0 @@ -package dns - -// NameUsed sets the RRs in the prereq section to -// "Name is in use" RRs. RFC 2136 section 2.4.4. -// See [ANY] on how to make RRs without rdata. -func (u *Msg) NameUsed(rr []RR) { - if u.Answer == nil { - u.Answer = make([]RR, 0, len(rr)) - } - for _, r := range rr { - u.Answer = append(u.Answer, &ANY{Hdr: RR_Header{Name: r.Header().Name, Ttl: 0, Rrtype: TypeANY, Class: ClassANY}}) - } -} - -// NameNotUsed sets the RRs in the prereq section to -// "Name is in not use" RRs. RFC 2136 section 2.4.5. -func (u *Msg) NameNotUsed(rr []RR) { - if u.Answer == nil { - u.Answer = make([]RR, 0, len(rr)) - } - for _, r := range rr { - u.Answer = append(u.Answer, &ANY{Hdr: RR_Header{Name: r.Header().Name, Ttl: 0, Rrtype: TypeANY, Class: ClassNONE}}) - } -} - -// Used sets the RRs in the prereq section to -// "RRset exists (value dependent -- with rdata)" RRs. RFC 2136 section 2.4.2. -func (u *Msg) Used(rr []RR) { - if len(u.Question) == 0 { - panic("dns: empty question section") - } - if u.Answer == nil { - u.Answer = make([]RR, 0, len(rr)) - } - for _, r := range rr { - hdr := r.Header() - hdr.Class = u.Question[0].Qclass - hdr.Ttl = 0 - u.Answer = append(u.Answer, r) - } -} - -// RRsetUsed sets the RRs in the prereq section to -// "RRset exists (value independent -- no rdata)" RRs. RFC 2136 section 2.4.1. -// See [ANY] on how to make RRs without rdata. -func (u *Msg) RRsetUsed(rr []RR) { - if u.Answer == nil { - u.Answer = make([]RR, 0, len(rr)) - } - for _, r := range rr { - h := r.Header() - u.Answer = append(u.Answer, &ANY{Hdr: RR_Header{Name: h.Name, Ttl: 0, Rrtype: h.Rrtype, Class: ClassANY}}) - } -} - -// RRsetNotUsed sets the RRs in the prereq section to -// "RRset does not exist" RRs. RFC 2136 section 2.4.3. -// See [ANY] on how to make RRs without rdata. -func (u *Msg) RRsetNotUsed(rr []RR) { - if u.Answer == nil { - u.Answer = make([]RR, 0, len(rr)) - } - for _, r := range rr { - h := r.Header() - u.Answer = append(u.Answer, &ANY{Hdr: RR_Header{Name: h.Name, Ttl: 0, Rrtype: h.Rrtype, Class: ClassNONE}}) - } -} - -// Insert creates a dynamic update packet that adds an complete RRset, see RFC 2136 section 2.5.1. -// See [ANY] on how to make RRs without rdata. -func (u *Msg) Insert(rr []RR) { - if len(u.Question) == 0 { - panic("dns: empty question section") - } - if u.Ns == nil { - u.Ns = make([]RR, 0, len(rr)) - } - for _, r := range rr { - r.Header().Class = u.Question[0].Qclass - u.Ns = append(u.Ns, r) - } -} - -// RemoveRRset creates a dynamic update packet that deletes an RRset, see RFC 2136 section 2.5.2. -// See [ANY] on how to make RRs without rdata. -func (u *Msg) RemoveRRset(rr []RR) { - if u.Ns == nil { - u.Ns = make([]RR, 0, len(rr)) - } - for _, r := range rr { - h := r.Header() - u.Ns = append(u.Ns, &ANY{Hdr: RR_Header{Name: h.Name, Ttl: 0, Rrtype: h.Rrtype, Class: ClassANY}}) - } -} - -// RemoveName creates a dynamic update packet that deletes all RRsets of a name, see RFC 2136 section 2.5.3 -// See [ANY] on how to make RRs without rdata. -func (u *Msg) RemoveName(rr []RR) { - if u.Ns == nil { - u.Ns = make([]RR, 0, len(rr)) - } - for _, r := range rr { - u.Ns = append(u.Ns, &ANY{Hdr: RR_Header{Name: r.Header().Name, Ttl: 0, Rrtype: TypeANY, Class: ClassANY}}) - } -} - -// Remove creates a dynamic update packet deletes RR from a RRSset, see RFC 2136 section 2.5.4 -// See [ANY] on how to make RRs without rdata. -func (u *Msg) Remove(rr []RR) { - if u.Ns == nil { - u.Ns = make([]RR, 0, len(rr)) - } - for _, r := range rr { - h := r.Header() - h.Class = ClassNONE - h.Ttl = 0 - u.Ns = append(u.Ns, r) - } -} diff --git a/vendor/github.com/miekg/dns/version.go b/vendor/github.com/miekg/dns/version.go deleted file mode 100644 index 33cb83e5ac..0000000000 --- a/vendor/github.com/miekg/dns/version.go +++ /dev/null @@ -1,15 +0,0 @@ -package dns - -import "fmt" - -// Version is current version of this library. -var Version = v{1, 1, 72} - -// v holds the version of this library. -type v struct { - Major, Minor, Patch int -} - -func (v v) String() string { - return fmt.Sprintf("%d.%d.%d", v.Major, v.Minor, v.Patch) -} diff --git a/vendor/github.com/miekg/dns/xfr.go b/vendor/github.com/miekg/dns/xfr.go deleted file mode 100644 index 97a6424714..0000000000 --- a/vendor/github.com/miekg/dns/xfr.go +++ /dev/null @@ -1,290 +0,0 @@ -package dns - -import ( - "crypto/tls" - "fmt" - "time" -) - -// Envelope is used when doing a zone transfer with a remote server. -type Envelope struct { - RR []RR // The set of RRs in the answer section of the xfr reply message. - Error error // If something went wrong, this contains the error. -} - -// A Transfer defines parameters that are used during a zone transfer. -type Transfer struct { - *Conn - DialTimeout time.Duration // net.DialTimeout, defaults to 2 seconds - ReadTimeout time.Duration // net.Conn.SetReadTimeout value for connections, defaults to 2 seconds - WriteTimeout time.Duration // net.Conn.SetWriteTimeout value for connections, defaults to 2 seconds - TsigProvider TsigProvider // An implementation of the TsigProvider interface. If defined it replaces TsigSecret and is used for all TSIG operations. - TsigSecret map[string]string // Secret(s) for Tsig map[], zonename must be in canonical form (lowercase, fqdn, see RFC 4034 Section 6.2) - tsigTimersOnly bool - TLS *tls.Config // TLS config. If Xfr over TLS will be attempted -} - -func (t *Transfer) tsigProvider() TsigProvider { - if t.TsigProvider != nil { - return t.TsigProvider - } - if t.TsigSecret != nil { - return tsigSecretProvider(t.TsigSecret) - } - return nil -} - -// TODO: Think we need to away to stop the transfer - -// In performs an incoming transfer with the server in a. -// If you would like to set the source IP, or some other attribute -// of a Dialer for a Transfer, you can do so by specifying the attributes -// in the Transfer.Conn: -// -// d := net.Dialer{LocalAddr: transfer_source} -// con, err := d.Dial("tcp", master) -// dnscon := &dns.Conn{Conn:con} -// transfer = &dns.Transfer{Conn: dnscon} -// channel, err := transfer.In(message, master) -func (t *Transfer) In(q *Msg, a string) (env chan *Envelope, err error) { - switch q.Question[0].Qtype { - case TypeAXFR, TypeIXFR: - default: - return nil, &Error{"unsupported question type"} - } - - timeout := dnsTimeout - if t.DialTimeout != 0 { - timeout = t.DialTimeout - } - - if t.Conn == nil { - if t.TLS != nil { - t.Conn, err = DialTimeoutWithTLS("tcp-tls", a, t.TLS, timeout) - } else { - t.Conn, err = DialTimeout("tcp", a, timeout) - } - if err != nil { - return nil, err - } - } - - if err := t.WriteMsg(q); err != nil { - return nil, err - } - - env = make(chan *Envelope) - switch q.Question[0].Qtype { - case TypeAXFR: - go t.inAxfr(q, env) - case TypeIXFR: - go t.inIxfr(q, env) - } - - return env, nil -} - -func (t *Transfer) inAxfr(q *Msg, c chan *Envelope) { - first := true - defer func() { - // First close the connection, then the channel. This allows functions blocked on - // the channel to assume that the connection is closed and no further operations are - // pending when they resume. - t.Close() - close(c) - }() - timeout := dnsTimeout - if t.ReadTimeout != 0 { - timeout = t.ReadTimeout - } - for { - t.Conn.SetReadDeadline(time.Now().Add(timeout)) - in, err := t.ReadMsg() - if err != nil { - c <- &Envelope{nil, err} - return - } - if q.Id != in.Id { - c <- &Envelope{in.Answer, ErrId} - return - } - if first { - if in.Rcode != RcodeSuccess { - c <- &Envelope{in.Answer, &Error{err: fmt.Sprintf(errXFR, in.Rcode)}} - return - } - if !isSOAFirst(in) { - c <- &Envelope{in.Answer, ErrSoa} - return - } - first = !first - // only one answer that is SOA, receive more - if len(in.Answer) == 1 { - t.tsigTimersOnly = true - c <- &Envelope{in.Answer, nil} - continue - } - } - - if !first { - t.tsigTimersOnly = true // Subsequent envelopes use this. - if isSOALast(in) { - c <- &Envelope{in.Answer, nil} - return - } - c <- &Envelope{in.Answer, nil} - } - } -} - -func (t *Transfer) inIxfr(q *Msg, c chan *Envelope) { - var serial uint32 // The first serial seen is the current server serial - axfr := true - n := 0 - qser := q.Ns[0].(*SOA).Serial - defer func() { - // First close the connection, then the channel. This allows functions blocked on - // the channel to assume that the connection is closed and no further operations are - // pending when they resume. - t.Close() - close(c) - }() - timeout := dnsTimeout - if t.ReadTimeout != 0 { - timeout = t.ReadTimeout - } - for { - t.SetReadDeadline(time.Now().Add(timeout)) - in, err := t.ReadMsg() - if err != nil { - c <- &Envelope{nil, err} - return - } - if q.Id != in.Id { - c <- &Envelope{in.Answer, ErrId} - return - } - if in.Rcode != RcodeSuccess { - c <- &Envelope{in.Answer, &Error{err: fmt.Sprintf(errXFR, in.Rcode)}} - return - } - if n == 0 { - // Check if the returned answer is ok - if !isSOAFirst(in) { - c <- &Envelope{in.Answer, ErrSoa} - return - } - // This serial is important - serial = in.Answer[0].(*SOA).Serial - // Check if there are no changes in zone - if qser >= serial { - c <- &Envelope{in.Answer, nil} - return - } - } - // Now we need to check each message for SOA records, to see what we need to do - t.tsigTimersOnly = true - for _, rr := range in.Answer { - if v, ok := rr.(*SOA); ok { - if v.Serial == serial { - n++ - // quit if it's a full axfr or the servers' SOA is repeated the third time - if axfr && n == 2 || n == 3 { - c <- &Envelope{in.Answer, nil} - return - } - } else if axfr { - // it's an ixfr - axfr = false - } - } - } - c <- &Envelope{in.Answer, nil} - } -} - -// Out performs an outgoing transfer with the client connecting in w. -// Basic use pattern: -// -// ch := make(chan *dns.Envelope) -// tr := new(dns.Transfer) -// var wg sync.WaitGroup -// wg.Add(1) -// go func() { -// tr.Out(w, r, ch) -// wg.Done() -// }() -// ch <- &dns.Envelope{RR: []dns.RR{soa, rr1, rr2, rr3, soa}} -// close(ch) -// wg.Wait() // wait until everything is written out -// w.Close() // close connection -// -// The server is responsible for sending the correct sequence of RRs through the channel ch. -func (t *Transfer) Out(w ResponseWriter, q *Msg, ch chan *Envelope) error { - for x := range ch { - r := new(Msg) - // Compress? - r.SetReply(q) - r.Authoritative = true - // assume it fits TODO(miek): fix - r.Answer = append(r.Answer, x.RR...) - if tsig := q.IsTsig(); tsig != nil && w.TsigStatus() == nil { - r.SetTsig(tsig.Hdr.Name, tsig.Algorithm, tsig.Fudge, time.Now().Unix()) - } - if err := w.WriteMsg(r); err != nil { - return err - } - w.TsigTimersOnly(true) - } - return nil -} - -// ReadMsg reads a message from the transfer connection t. -func (t *Transfer) ReadMsg() (*Msg, error) { - m := new(Msg) - p := make([]byte, MaxMsgSize) - n, err := t.Read(p) - if err != nil && n == 0 { - return nil, err - } - p = p[:n] - if err := m.Unpack(p); err != nil { - return nil, err - } - - if tp := t.tsigProvider(); tp != nil { - // Need to work on the original message p, as that was used to calculate the tsig. - err = TsigVerifyWithProvider(p, tp, t.tsigRequestMAC, t.tsigTimersOnly) - if ts := m.IsTsig(); ts != nil { - t.tsigRequestMAC = ts.MAC - } - } - return m, err -} - -// WriteMsg writes a message through the transfer connection t. -func (t *Transfer) WriteMsg(m *Msg) (err error) { - var out []byte - if ts, tp := m.IsTsig(), t.tsigProvider(); ts != nil && tp != nil { - out, t.tsigRequestMAC, err = TsigGenerateWithProvider(m, tp, t.tsigRequestMAC, t.tsigTimersOnly) - } else { - out, err = m.Pack() - } - if err != nil { - return err - } - _, err = t.Write(out) - return err -} - -func isSOAFirst(in *Msg) bool { - return len(in.Answer) > 0 && - in.Answer[0].Header().Rrtype == TypeSOA -} - -func isSOALast(in *Msg) bool { - return len(in.Answer) > 0 && - in.Answer[len(in.Answer)-1].Header().Rrtype == TypeSOA -} - -const errXFR = "bad xfr rcode: %d" diff --git a/vendor/github.com/miekg/dns/zduplicate.go b/vendor/github.com/miekg/dns/zduplicate.go deleted file mode 100644 index ebd9e02970..0000000000 --- a/vendor/github.com/miekg/dns/zduplicate.go +++ /dev/null @@ -1,1459 +0,0 @@ -// Code generated by "go run duplicate_generate.go"; DO NOT EDIT. - -package dns - -// isDuplicate() functions - -func (r1 *A) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*A) - if !ok { - return false - } - _ = r2 - if !r1.A.Equal(r2.A) { - return false - } - return true -} - -func (r1 *AAAA) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*AAAA) - if !ok { - return false - } - _ = r2 - if !r1.AAAA.Equal(r2.AAAA) { - return false - } - return true -} - -func (r1 *AFSDB) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*AFSDB) - if !ok { - return false - } - _ = r2 - if r1.Subtype != r2.Subtype { - return false - } - if !isDuplicateName(r1.Hostname, r2.Hostname) { - return false - } - return true -} - -func (r1 *AMTRELAY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*AMTRELAY) - if !ok { - return false - } - _ = r2 - if r1.Precedence != r2.Precedence { - return false - } - if r1.GatewayType != r2.GatewayType { - return false - } - switch r1.GatewayType { - case IPSECGatewayIPv4, IPSECGatewayIPv6: - if !r1.GatewayAddr.Equal(r2.GatewayAddr) { - return false - } - case IPSECGatewayHost: - if !isDuplicateName(r1.GatewayHost, r2.GatewayHost) { - return false - } - } - - return true -} - -func (r1 *ANY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*ANY) - if !ok { - return false - } - _ = r2 - return true -} - -func (r1 *APL) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*APL) - if !ok { - return false - } - _ = r2 - if len(r1.Prefixes) != len(r2.Prefixes) { - return false - } - for i := 0; i < len(r1.Prefixes); i++ { - if !r1.Prefixes[i].equals(&r2.Prefixes[i]) { - return false - } - } - return true -} - -func (r1 *AVC) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*AVC) - if !ok { - return false - } - _ = r2 - if len(r1.Txt) != len(r2.Txt) { - return false - } - for i := 0; i < len(r1.Txt); i++ { - if r1.Txt[i] != r2.Txt[i] { - return false - } - } - return true -} - -func (r1 *CAA) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*CAA) - if !ok { - return false - } - _ = r2 - if r1.Flag != r2.Flag { - return false - } - if r1.Tag != r2.Tag { - return false - } - if r1.Value != r2.Value { - return false - } - return true -} - -func (r1 *CDNSKEY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*CDNSKEY) - if !ok { - return false - } - _ = r2 - if r1.Flags != r2.Flags { - return false - } - if r1.Protocol != r2.Protocol { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.PublicKey != r2.PublicKey { - return false - } - return true -} - -func (r1 *CDS) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*CDS) - if !ok { - return false - } - _ = r2 - if r1.KeyTag != r2.KeyTag { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.DigestType != r2.DigestType { - return false - } - if r1.Digest != r2.Digest { - return false - } - return true -} - -func (r1 *CERT) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*CERT) - if !ok { - return false - } - _ = r2 - if r1.Type != r2.Type { - return false - } - if r1.KeyTag != r2.KeyTag { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.Certificate != r2.Certificate { - return false - } - return true -} - -func (r1 *CNAME) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*CNAME) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Target, r2.Target) { - return false - } - return true -} - -func (r1 *CSYNC) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*CSYNC) - if !ok { - return false - } - _ = r2 - if r1.Serial != r2.Serial { - return false - } - if r1.Flags != r2.Flags { - return false - } - if len(r1.TypeBitMap) != len(r2.TypeBitMap) { - return false - } - for i := 0; i < len(r1.TypeBitMap); i++ { - if r1.TypeBitMap[i] != r2.TypeBitMap[i] { - return false - } - } - return true -} - -func (r1 *DHCID) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*DHCID) - if !ok { - return false - } - _ = r2 - if r1.Digest != r2.Digest { - return false - } - return true -} - -func (r1 *DLV) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*DLV) - if !ok { - return false - } - _ = r2 - if r1.KeyTag != r2.KeyTag { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.DigestType != r2.DigestType { - return false - } - if r1.Digest != r2.Digest { - return false - } - return true -} - -func (r1 *DNAME) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*DNAME) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Target, r2.Target) { - return false - } - return true -} - -func (r1 *DNSKEY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*DNSKEY) - if !ok { - return false - } - _ = r2 - if r1.Flags != r2.Flags { - return false - } - if r1.Protocol != r2.Protocol { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.PublicKey != r2.PublicKey { - return false - } - return true -} - -func (r1 *DS) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*DS) - if !ok { - return false - } - _ = r2 - if r1.KeyTag != r2.KeyTag { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.DigestType != r2.DigestType { - return false - } - if r1.Digest != r2.Digest { - return false - } - return true -} - -func (r1 *EID) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*EID) - if !ok { - return false - } - _ = r2 - if r1.Endpoint != r2.Endpoint { - return false - } - return true -} - -func (r1 *EUI48) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*EUI48) - if !ok { - return false - } - _ = r2 - if r1.Address != r2.Address { - return false - } - return true -} - -func (r1 *EUI64) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*EUI64) - if !ok { - return false - } - _ = r2 - if r1.Address != r2.Address { - return false - } - return true -} - -func (r1 *GID) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*GID) - if !ok { - return false - } - _ = r2 - if r1.Gid != r2.Gid { - return false - } - return true -} - -func (r1 *GPOS) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*GPOS) - if !ok { - return false - } - _ = r2 - if r1.Longitude != r2.Longitude { - return false - } - if r1.Latitude != r2.Latitude { - return false - } - if r1.Altitude != r2.Altitude { - return false - } - return true -} - -func (r1 *HINFO) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*HINFO) - if !ok { - return false - } - _ = r2 - if r1.Cpu != r2.Cpu { - return false - } - if r1.Os != r2.Os { - return false - } - return true -} - -func (r1 *HIP) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*HIP) - if !ok { - return false - } - _ = r2 - if r1.HitLength != r2.HitLength { - return false - } - if r1.PublicKeyAlgorithm != r2.PublicKeyAlgorithm { - return false - } - if r1.PublicKeyLength != r2.PublicKeyLength { - return false - } - if r1.Hit != r2.Hit { - return false - } - if r1.PublicKey != r2.PublicKey { - return false - } - if len(r1.RendezvousServers) != len(r2.RendezvousServers) { - return false - } - for i := 0; i < len(r1.RendezvousServers); i++ { - if !isDuplicateName(r1.RendezvousServers[i], r2.RendezvousServers[i]) { - return false - } - } - return true -} - -func (r1 *HTTPS) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*HTTPS) - if !ok { - return false - } - _ = r2 - if r1.Priority != r2.Priority { - return false - } - if !isDuplicateName(r1.Target, r2.Target) { - return false - } - if len(r1.Value) != len(r2.Value) { - return false - } - if !areSVCBPairArraysEqual(r1.Value, r2.Value) { - return false - } - return true -} - -func (r1 *IPSECKEY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*IPSECKEY) - if !ok { - return false - } - _ = r2 - if r1.Precedence != r2.Precedence { - return false - } - if r1.GatewayType != r2.GatewayType { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - switch r1.GatewayType { - case IPSECGatewayIPv4, IPSECGatewayIPv6: - if !r1.GatewayAddr.Equal(r2.GatewayAddr) { - return false - } - case IPSECGatewayHost: - if !isDuplicateName(r1.GatewayHost, r2.GatewayHost) { - return false - } - } - - if r1.PublicKey != r2.PublicKey { - return false - } - return true -} - -func (r1 *ISDN) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*ISDN) - if !ok { - return false - } - _ = r2 - if r1.Address != r2.Address { - return false - } - if r1.SubAddress != r2.SubAddress { - return false - } - return true -} - -func (r1 *KEY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*KEY) - if !ok { - return false - } - _ = r2 - if r1.Flags != r2.Flags { - return false - } - if r1.Protocol != r2.Protocol { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.PublicKey != r2.PublicKey { - return false - } - return true -} - -func (r1 *KX) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*KX) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if !isDuplicateName(r1.Exchanger, r2.Exchanger) { - return false - } - return true -} - -func (r1 *L32) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*L32) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if !r1.Locator32.Equal(r2.Locator32) { - return false - } - return true -} - -func (r1 *L64) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*L64) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if r1.Locator64 != r2.Locator64 { - return false - } - return true -} - -func (r1 *LOC) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*LOC) - if !ok { - return false - } - _ = r2 - if r1.Version != r2.Version { - return false - } - if r1.Size != r2.Size { - return false - } - if r1.HorizPre != r2.HorizPre { - return false - } - if r1.VertPre != r2.VertPre { - return false - } - if r1.Latitude != r2.Latitude { - return false - } - if r1.Longitude != r2.Longitude { - return false - } - if r1.Altitude != r2.Altitude { - return false - } - return true -} - -func (r1 *LP) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*LP) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if !isDuplicateName(r1.Fqdn, r2.Fqdn) { - return false - } - return true -} - -func (r1 *MB) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*MB) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Mb, r2.Mb) { - return false - } - return true -} - -func (r1 *MD) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*MD) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Md, r2.Md) { - return false - } - return true -} - -func (r1 *MF) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*MF) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Mf, r2.Mf) { - return false - } - return true -} - -func (r1 *MG) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*MG) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Mg, r2.Mg) { - return false - } - return true -} - -func (r1 *MINFO) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*MINFO) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Rmail, r2.Rmail) { - return false - } - if !isDuplicateName(r1.Email, r2.Email) { - return false - } - return true -} - -func (r1 *MR) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*MR) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Mr, r2.Mr) { - return false - } - return true -} - -func (r1 *MX) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*MX) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if !isDuplicateName(r1.Mx, r2.Mx) { - return false - } - return true -} - -func (r1 *NAPTR) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NAPTR) - if !ok { - return false - } - _ = r2 - if r1.Order != r2.Order { - return false - } - if r1.Preference != r2.Preference { - return false - } - if r1.Flags != r2.Flags { - return false - } - if r1.Service != r2.Service { - return false - } - if r1.Regexp != r2.Regexp { - return false - } - if !isDuplicateName(r1.Replacement, r2.Replacement) { - return false - } - return true -} - -func (r1 *NID) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NID) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if r1.NodeID != r2.NodeID { - return false - } - return true -} - -func (r1 *NIMLOC) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NIMLOC) - if !ok { - return false - } - _ = r2 - if r1.Locator != r2.Locator { - return false - } - return true -} - -func (r1 *NINFO) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NINFO) - if !ok { - return false - } - _ = r2 - if len(r1.ZSData) != len(r2.ZSData) { - return false - } - for i := 0; i < len(r1.ZSData); i++ { - if r1.ZSData[i] != r2.ZSData[i] { - return false - } - } - return true -} - -func (r1 *NS) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NS) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Ns, r2.Ns) { - return false - } - return true -} - -func (r1 *NSAPPTR) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NSAPPTR) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Ptr, r2.Ptr) { - return false - } - return true -} - -func (r1 *NSEC) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NSEC) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.NextDomain, r2.NextDomain) { - return false - } - if len(r1.TypeBitMap) != len(r2.TypeBitMap) { - return false - } - for i := 0; i < len(r1.TypeBitMap); i++ { - if r1.TypeBitMap[i] != r2.TypeBitMap[i] { - return false - } - } - return true -} - -func (r1 *NSEC3) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NSEC3) - if !ok { - return false - } - _ = r2 - if r1.Hash != r2.Hash { - return false - } - if r1.Flags != r2.Flags { - return false - } - if r1.Iterations != r2.Iterations { - return false - } - if r1.SaltLength != r2.SaltLength { - return false - } - if r1.Salt != r2.Salt { - return false - } - if r1.HashLength != r2.HashLength { - return false - } - if r1.NextDomain != r2.NextDomain { - return false - } - if len(r1.TypeBitMap) != len(r2.TypeBitMap) { - return false - } - for i := 0; i < len(r1.TypeBitMap); i++ { - if r1.TypeBitMap[i] != r2.TypeBitMap[i] { - return false - } - } - return true -} - -func (r1 *NSEC3PARAM) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NSEC3PARAM) - if !ok { - return false - } - _ = r2 - if r1.Hash != r2.Hash { - return false - } - if r1.Flags != r2.Flags { - return false - } - if r1.Iterations != r2.Iterations { - return false - } - if r1.SaltLength != r2.SaltLength { - return false - } - if r1.Salt != r2.Salt { - return false - } - return true -} - -func (r1 *NULL) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NULL) - if !ok { - return false - } - _ = r2 - if r1.Data != r2.Data { - return false - } - return true -} - -func (r1 *NXNAME) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NXNAME) - if !ok { - return false - } - _ = r2 - return true -} - -func (r1 *NXT) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*NXT) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.NextDomain, r2.NextDomain) { - return false - } - if len(r1.TypeBitMap) != len(r2.TypeBitMap) { - return false - } - for i := 0; i < len(r1.TypeBitMap); i++ { - if r1.TypeBitMap[i] != r2.TypeBitMap[i] { - return false - } - } - return true -} - -func (r1 *OPENPGPKEY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*OPENPGPKEY) - if !ok { - return false - } - _ = r2 - if r1.PublicKey != r2.PublicKey { - return false - } - return true -} - -func (r1 *PTR) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*PTR) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Ptr, r2.Ptr) { - return false - } - return true -} - -func (r1 *PX) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*PX) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if !isDuplicateName(r1.Map822, r2.Map822) { - return false - } - if !isDuplicateName(r1.Mapx400, r2.Mapx400) { - return false - } - return true -} - -func (r1 *RESINFO) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*RESINFO) - if !ok { - return false - } - _ = r2 - if len(r1.Txt) != len(r2.Txt) { - return false - } - for i := 0; i < len(r1.Txt); i++ { - if r1.Txt[i] != r2.Txt[i] { - return false - } - } - return true -} - -func (r1 *RFC3597) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*RFC3597) - if !ok { - return false - } - _ = r2 - if r1.Rdata != r2.Rdata { - return false - } - return true -} - -func (r1 *RKEY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*RKEY) - if !ok { - return false - } - _ = r2 - if r1.Flags != r2.Flags { - return false - } - if r1.Protocol != r2.Protocol { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.PublicKey != r2.PublicKey { - return false - } - return true -} - -func (r1 *RP) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*RP) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Mbox, r2.Mbox) { - return false - } - if !isDuplicateName(r1.Txt, r2.Txt) { - return false - } - return true -} - -func (r1 *RRSIG) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*RRSIG) - if !ok { - return false - } - _ = r2 - if r1.TypeCovered != r2.TypeCovered { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.Labels != r2.Labels { - return false - } - if r1.OrigTtl != r2.OrigTtl { - return false - } - if r1.Expiration != r2.Expiration { - return false - } - if r1.Inception != r2.Inception { - return false - } - if r1.KeyTag != r2.KeyTag { - return false - } - if !isDuplicateName(r1.SignerName, r2.SignerName) { - return false - } - if r1.Signature != r2.Signature { - return false - } - return true -} - -func (r1 *RT) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*RT) - if !ok { - return false - } - _ = r2 - if r1.Preference != r2.Preference { - return false - } - if !isDuplicateName(r1.Host, r2.Host) { - return false - } - return true -} - -func (r1 *SIG) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*SIG) - if !ok { - return false - } - _ = r2 - if r1.TypeCovered != r2.TypeCovered { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.Labels != r2.Labels { - return false - } - if r1.OrigTtl != r2.OrigTtl { - return false - } - if r1.Expiration != r2.Expiration { - return false - } - if r1.Inception != r2.Inception { - return false - } - if r1.KeyTag != r2.KeyTag { - return false - } - if !isDuplicateName(r1.SignerName, r2.SignerName) { - return false - } - if r1.Signature != r2.Signature { - return false - } - return true -} - -func (r1 *SMIMEA) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*SMIMEA) - if !ok { - return false - } - _ = r2 - if r1.Usage != r2.Usage { - return false - } - if r1.Selector != r2.Selector { - return false - } - if r1.MatchingType != r2.MatchingType { - return false - } - if r1.Certificate != r2.Certificate { - return false - } - return true -} - -func (r1 *SOA) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*SOA) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Ns, r2.Ns) { - return false - } - if !isDuplicateName(r1.Mbox, r2.Mbox) { - return false - } - if r1.Serial != r2.Serial { - return false - } - if r1.Refresh != r2.Refresh { - return false - } - if r1.Retry != r2.Retry { - return false - } - if r1.Expire != r2.Expire { - return false - } - if r1.Minttl != r2.Minttl { - return false - } - return true -} - -func (r1 *SPF) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*SPF) - if !ok { - return false - } - _ = r2 - if len(r1.Txt) != len(r2.Txt) { - return false - } - for i := 0; i < len(r1.Txt); i++ { - if r1.Txt[i] != r2.Txt[i] { - return false - } - } - return true -} - -func (r1 *SRV) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*SRV) - if !ok { - return false - } - _ = r2 - if r1.Priority != r2.Priority { - return false - } - if r1.Weight != r2.Weight { - return false - } - if r1.Port != r2.Port { - return false - } - if !isDuplicateName(r1.Target, r2.Target) { - return false - } - return true -} - -func (r1 *SSHFP) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*SSHFP) - if !ok { - return false - } - _ = r2 - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.Type != r2.Type { - return false - } - if r1.FingerPrint != r2.FingerPrint { - return false - } - return true -} - -func (r1 *SVCB) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*SVCB) - if !ok { - return false - } - _ = r2 - if r1.Priority != r2.Priority { - return false - } - if !isDuplicateName(r1.Target, r2.Target) { - return false - } - if len(r1.Value) != len(r2.Value) { - return false - } - if !areSVCBPairArraysEqual(r1.Value, r2.Value) { - return false - } - return true -} - -func (r1 *TA) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*TA) - if !ok { - return false - } - _ = r2 - if r1.KeyTag != r2.KeyTag { - return false - } - if r1.Algorithm != r2.Algorithm { - return false - } - if r1.DigestType != r2.DigestType { - return false - } - if r1.Digest != r2.Digest { - return false - } - return true -} - -func (r1 *TALINK) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*TALINK) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.PreviousName, r2.PreviousName) { - return false - } - if !isDuplicateName(r1.NextName, r2.NextName) { - return false - } - return true -} - -func (r1 *TKEY) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*TKEY) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Algorithm, r2.Algorithm) { - return false - } - if r1.Inception != r2.Inception { - return false - } - if r1.Expiration != r2.Expiration { - return false - } - if r1.Mode != r2.Mode { - return false - } - if r1.Error != r2.Error { - return false - } - if r1.KeySize != r2.KeySize { - return false - } - if r1.Key != r2.Key { - return false - } - if r1.OtherLen != r2.OtherLen { - return false - } - if r1.OtherData != r2.OtherData { - return false - } - return true -} - -func (r1 *TLSA) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*TLSA) - if !ok { - return false - } - _ = r2 - if r1.Usage != r2.Usage { - return false - } - if r1.Selector != r2.Selector { - return false - } - if r1.MatchingType != r2.MatchingType { - return false - } - if r1.Certificate != r2.Certificate { - return false - } - return true -} - -func (r1 *TSIG) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*TSIG) - if !ok { - return false - } - _ = r2 - if !isDuplicateName(r1.Algorithm, r2.Algorithm) { - return false - } - if r1.TimeSigned != r2.TimeSigned { - return false - } - if r1.Fudge != r2.Fudge { - return false - } - if r1.MACSize != r2.MACSize { - return false - } - if r1.MAC != r2.MAC { - return false - } - if r1.OrigId != r2.OrigId { - return false - } - if r1.Error != r2.Error { - return false - } - if r1.OtherLen != r2.OtherLen { - return false - } - if r1.OtherData != r2.OtherData { - return false - } - return true -} - -func (r1 *TXT) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*TXT) - if !ok { - return false - } - _ = r2 - if len(r1.Txt) != len(r2.Txt) { - return false - } - for i := 0; i < len(r1.Txt); i++ { - if r1.Txt[i] != r2.Txt[i] { - return false - } - } - return true -} - -func (r1 *UID) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*UID) - if !ok { - return false - } - _ = r2 - if r1.Uid != r2.Uid { - return false - } - return true -} - -func (r1 *UINFO) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*UINFO) - if !ok { - return false - } - _ = r2 - if r1.Uinfo != r2.Uinfo { - return false - } - return true -} - -func (r1 *URI) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*URI) - if !ok { - return false - } - _ = r2 - if r1.Priority != r2.Priority { - return false - } - if r1.Weight != r2.Weight { - return false - } - if r1.Target != r2.Target { - return false - } - return true -} - -func (r1 *X25) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*X25) - if !ok { - return false - } - _ = r2 - if r1.PSDNAddress != r2.PSDNAddress { - return false - } - return true -} - -func (r1 *ZONEMD) isDuplicate(_r2 RR) bool { - r2, ok := _r2.(*ZONEMD) - if !ok { - return false - } - _ = r2 - if r1.Serial != r2.Serial { - return false - } - if r1.Scheme != r2.Scheme { - return false - } - if r1.Hash != r2.Hash { - return false - } - if r1.Digest != r2.Digest { - return false - } - return true -} diff --git a/vendor/github.com/miekg/dns/zmsg.go b/vendor/github.com/miekg/dns/zmsg.go deleted file mode 100644 index 8143ddc1b9..0000000000 --- a/vendor/github.com/miekg/dns/zmsg.go +++ /dev/null @@ -1,3077 +0,0 @@ -// Code generated by "go run msg_generate.go"; DO NOT EDIT. - -package dns - -import "fmt" - -// pack*() functions - -func (rr *A) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDataA(rr.A, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *AAAA) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDataAAAA(rr.AAAA, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *AFSDB) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Subtype, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Hostname, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *AMTRELAY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Precedence, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.GatewayType, msg, off) - if err != nil { - return off, err - } - off, err = packIPSECGateway(rr.GatewayAddr, rr.GatewayHost, msg, off, rr.GatewayType, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *ANY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - return off, nil -} - -func (rr *APL) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDataApl(rr.Prefixes, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *AVC) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringTxt(rr.Txt, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CAA) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Flag, msg, off) - if err != nil { - return off, err - } - off, err = packString(rr.Tag, msg, off) - if err != nil { - return off, err - } - off, err = packStringOctet(rr.Value, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CDNSKEY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Protocol, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.PublicKey, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CDS) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.DigestType, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Digest, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CERT) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Type, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.Certificate, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CNAME) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Target, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *CSYNC) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint32(rr.Serial, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packDataNsec(rr.TypeBitMap, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *DHCID) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringBase64(rr.Digest, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *DLV) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.DigestType, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Digest, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *DNAME) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Target, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *DNSKEY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Protocol, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.PublicKey, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *DS) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.DigestType, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Digest, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *EID) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringHex(rr.Endpoint, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *EUI48) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint48(rr.Address, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *EUI64) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint64(rr.Address, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *GID) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint32(rr.Gid, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *GPOS) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packString(rr.Longitude, msg, off) - if err != nil { - return off, err - } - off, err = packString(rr.Latitude, msg, off) - if err != nil { - return off, err - } - off, err = packString(rr.Altitude, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *HINFO) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packString(rr.Cpu, msg, off) - if err != nil { - return off, err - } - off, err = packString(rr.Os, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *HIP) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.HitLength, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.PublicKeyAlgorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.PublicKeyLength, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Hit, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.PublicKey, msg, off) - if err != nil { - return off, err - } - off, err = packDataDomainNames(rr.RendezvousServers, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *HTTPS) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Priority, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Target, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packDataSVCB(rr.Value, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *IPSECKEY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Precedence, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.GatewayType, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packIPSECGateway(rr.GatewayAddr, rr.GatewayHost, msg, off, rr.GatewayType, compression, false) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.PublicKey, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *ISDN) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packString(rr.Address, msg, off) - if err != nil { - return off, err - } - off, err = packString(rr.SubAddress, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *KEY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Protocol, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.PublicKey, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *KX) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Exchanger, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *L32) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packDataA(rr.Locator32, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *L64) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packUint64(rr.Locator64, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *LOC) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Version, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Size, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.HorizPre, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.VertPre, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Latitude, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Longitude, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Altitude, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *LP) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Fqdn, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MB) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Mb, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MD) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Md, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MF) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Mf, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MG) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Mg, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MINFO) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Rmail, msg, off, compression, compress) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Email, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MR) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Mr, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *MX) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Mx, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NAPTR) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Order, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packString(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packString(rr.Service, msg, off) - if err != nil { - return off, err - } - off, err = packString(rr.Regexp, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Replacement, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NID) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packUint64(rr.NodeID, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NIMLOC) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringHex(rr.Locator, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NINFO) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringTxt(rr.ZSData, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NS) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Ns, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NSAPPTR) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Ptr, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NSEC) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.NextDomain, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packDataNsec(rr.TypeBitMap, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NSEC3) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Hash, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Iterations, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.SaltLength, msg, off) - if err != nil { - return off, err - } - // Only pack salt if value is not "-", i.e. empty - if rr.Salt != "-" { - off, err = packStringHex(rr.Salt, msg, off) - if err != nil { - return off, err - } - } - off, err = packUint8(rr.HashLength, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase32(rr.NextDomain, msg, off) - if err != nil { - return off, err - } - off, err = packDataNsec(rr.TypeBitMap, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NSEC3PARAM) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Hash, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Iterations, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.SaltLength, msg, off) - if err != nil { - return off, err - } - // Only pack salt if value is not "-", i.e. empty - if rr.Salt != "-" { - off, err = packStringHex(rr.Salt, msg, off) - if err != nil { - return off, err - } - } - return off, nil -} - -func (rr *NULL) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringAny(rr.Data, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NXNAME) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - return off, nil -} - -func (rr *NXT) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.NextDomain, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packDataNsec(rr.TypeBitMap, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *OPENPGPKEY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringBase64(rr.PublicKey, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *OPT) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDataOpt(rr.Option, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *PTR) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Ptr, msg, off, compression, compress) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *PX) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Map822, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Mapx400, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RESINFO) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringTxt(rr.Txt, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RFC3597) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringHex(rr.Rdata, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RKEY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Flags, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Protocol, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.PublicKey, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RP) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Mbox, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Txt, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RRSIG) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.TypeCovered, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Labels, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.OrigTtl, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Expiration, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Inception, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.SignerName, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.Signature, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RT) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Preference, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Host, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SIG) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.TypeCovered, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Labels, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.OrigTtl, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Expiration, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Inception, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.SignerName, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packStringBase64(rr.Signature, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SMIMEA) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Usage, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Selector, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.MatchingType, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Certificate, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SOA) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Ns, msg, off, compression, compress) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Mbox, msg, off, compression, compress) - if err != nil { - return off, err - } - off, err = packUint32(rr.Serial, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Refresh, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Retry, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Expire, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Minttl, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SPF) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringTxt(rr.Txt, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SRV) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Priority, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Weight, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Port, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Target, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SSHFP) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Type, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.FingerPrint, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *SVCB) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Priority, msg, off) - if err != nil { - return off, err - } - off, err = packDomainName(rr.Target, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packDataSVCB(rr.Value, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TA) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.KeyTag, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Algorithm, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.DigestType, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Digest, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TALINK) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.PreviousName, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packDomainName(rr.NextName, msg, off, compression, false) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TKEY) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Algorithm, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packUint32(rr.Inception, msg, off) - if err != nil { - return off, err - } - off, err = packUint32(rr.Expiration, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Mode, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Error, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.KeySize, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Key, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.OtherLen, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.OtherData, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TLSA) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint8(rr.Usage, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Selector, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.MatchingType, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Certificate, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TSIG) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packDomainName(rr.Algorithm, msg, off, compression, false) - if err != nil { - return off, err - } - off, err = packUint48(rr.TimeSigned, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Fudge, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.MACSize, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.MAC, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.OrigId, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Error, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.OtherLen, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.OtherData, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TXT) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packStringTxt(rr.Txt, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *UID) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint32(rr.Uid, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *UINFO) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packString(rr.Uinfo, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *URI) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint16(rr.Priority, msg, off) - if err != nil { - return off, err - } - off, err = packUint16(rr.Weight, msg, off) - if err != nil { - return off, err - } - off, err = packStringOctet(rr.Target, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *X25) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packString(rr.PSDNAddress, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *ZONEMD) pack(msg []byte, off int, compression compressionMap, compress bool) (off1 int, err error) { - off, err = packUint32(rr.Serial, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Scheme, msg, off) - if err != nil { - return off, err - } - off, err = packUint8(rr.Hash, msg, off) - if err != nil { - return off, err - } - off, err = packStringHex(rr.Digest, msg, off) - if err != nil { - return off, err - } - return off, nil -} - -// unpack*() functions - -func (rr *A) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.A, off, err = unpackDataA(msg, off) - if err != nil { - return off, fmt.Errorf("A: %w", err) - } - return off, nil -} - -func (rr *AAAA) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.AAAA, off, err = unpackDataAAAA(msg, off) - if err != nil { - return off, fmt.Errorf("AAAA: %w", err) - } - return off, nil -} - -func (rr *AFSDB) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Subtype, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("AFSDB.Subtype: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Hostname, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("AFSDB.Hostname: %w", err) - } - return off, nil -} - -func (rr *AMTRELAY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Precedence, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("AMTRELAY.Precedence: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.GatewayType, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("AMTRELAY.GatewayType: %w", err) - } - if off == len(msg) { - return off, nil - } - if off == len(msg) { - return off, nil - } - rr.GatewayAddr, rr.GatewayHost, off, err = unpackIPSECGateway(msg, off, rr.GatewayType) - if err != nil { - return off, fmt.Errorf("AMTRELAY.GatewayHost: %w", err) - } - return off, nil -} - -func (rr *ANY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - return off, nil -} - -func (rr *APL) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Prefixes, off, err = unpackDataApl(msg, off) - if err != nil { - return off, fmt.Errorf("APL.Prefixes: %w", err) - } - return off, nil -} - -func (rr *AVC) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Txt, off, err = unpackStringTxt(msg, off) - if err != nil { - return off, fmt.Errorf("AVC.Txt: %w", err) - } - return off, nil -} - -func (rr *CAA) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Flag, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("CAA.Flag: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Tag, off, err = unpackString(msg, off) - if err != nil { - return off, fmt.Errorf("CAA.Tag: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Value, off, err = unpackStringOctet(msg, off) - if err != nil { - return off, fmt.Errorf("CAA.Value: %w", err) - } - return off, nil -} - -func (rr *CDNSKEY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Flags, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("CDNSKEY.Flags: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Protocol, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("CDNSKEY.Protocol: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("CDNSKEY.Algorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.PublicKey, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("CDNSKEY.PublicKey: %w", err) - } - return off, nil -} - -func (rr *CDS) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.KeyTag, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("CDS.KeyTag: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("CDS.Algorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.DigestType, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("CDS.DigestType: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Digest, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("CDS.Digest: %w", err) - } - return off, nil -} - -func (rr *CERT) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Type, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("CERT.Type: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.KeyTag, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("CERT.KeyTag: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("CERT.Algorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Certificate, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("CERT.Certificate: %w", err) - } - return off, nil -} - -func (rr *CNAME) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Target, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("CNAME.Target: %w", err) - } - return off, nil -} - -func (rr *CSYNC) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Serial, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("CSYNC.Serial: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Flags, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("CSYNC.Flags: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.TypeBitMap, off, err = unpackDataNsec(msg, off) - if err != nil { - return off, fmt.Errorf("CSYNC.TypeBitMap: %w", err) - } - return off, nil -} - -func (rr *DHCID) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Digest, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("DHCID.Digest: %w", err) - } - return off, nil -} - -func (rr *DLV) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.KeyTag, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("DLV.KeyTag: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("DLV.Algorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.DigestType, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("DLV.DigestType: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Digest, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("DLV.Digest: %w", err) - } - return off, nil -} - -func (rr *DNAME) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Target, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("DNAME.Target: %w", err) - } - return off, nil -} - -func (rr *DNSKEY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Flags, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("DNSKEY.Flags: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Protocol, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("DNSKEY.Protocol: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("DNSKEY.Algorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.PublicKey, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("DNSKEY.PublicKey: %w", err) - } - return off, nil -} - -func (rr *DS) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.KeyTag, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("DS.KeyTag: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("DS.Algorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.DigestType, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("DS.DigestType: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Digest, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("DS.Digest: %w", err) - } - return off, nil -} - -func (rr *EID) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Endpoint, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("EID.Endpoint: %w", err) - } - return off, nil -} - -func (rr *EUI48) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Address, off, err = unpackUint48(msg, off) - if err != nil { - return off, fmt.Errorf("EUI48.Address: %w", err) - } - return off, nil -} - -func (rr *EUI64) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Address, off, err = unpackUint64(msg, off) - if err != nil { - return off, fmt.Errorf("EUI64.Address: %w", err) - } - return off, nil -} - -func (rr *GID) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Gid, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("GID.Gid: %w", err) - } - return off, nil -} - -func (rr *GPOS) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Longitude, off, err = unpackString(msg, off) - if err != nil { - return off, fmt.Errorf("GPOS.Longitude: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Latitude, off, err = unpackString(msg, off) - if err != nil { - return off, fmt.Errorf("GPOS.Latitude: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Altitude, off, err = unpackString(msg, off) - if err != nil { - return off, fmt.Errorf("GPOS.Altitude: %w", err) - } - return off, nil -} - -func (rr *HINFO) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Cpu, off, err = unpackString(msg, off) - if err != nil { - return off, fmt.Errorf("HINFO.Cpu: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Os, off, err = unpackString(msg, off) - if err != nil { - return off, fmt.Errorf("HINFO.Os: %w", err) - } - return off, nil -} - -func (rr *HIP) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.HitLength, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("HIP.HitLength: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.PublicKeyAlgorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("HIP.PublicKeyAlgorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.PublicKeyLength, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("HIP.PublicKeyLength: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Hit, off, err = unpackStringHex(msg, off, off+int(rr.HitLength)) - if err != nil { - return off, err - } - rr.PublicKey, off, err = unpackStringBase64(msg, off, off+int(rr.PublicKeyLength)) - if err != nil { - return off, err - } - rr.RendezvousServers, off, err = unpackDataDomainNames(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("HIP.RendezvousServers: %w", err) - } - return off, nil -} - -func (rr *HTTPS) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Priority, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("HTTPS.Priority: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Target, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("HTTPS.Target: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Value, off, err = unpackDataSVCB(msg, off) - if err != nil { - return off, fmt.Errorf("HTTPS.Value: %w", err) - } - return off, nil -} - -func (rr *IPSECKEY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Precedence, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("IPSECKEY.Precedence: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.GatewayType, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("IPSECKEY.GatewayType: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("IPSECKEY.Algorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - if off == len(msg) { - return off, nil - } - rr.GatewayAddr, rr.GatewayHost, off, err = unpackIPSECGateway(msg, off, rr.GatewayType) - if err != nil { - return off, fmt.Errorf("IPSECKEY.GatewayHost: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.PublicKey, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("IPSECKEY.PublicKey: %w", err) - } - return off, nil -} - -func (rr *ISDN) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Address, off, err = unpackString(msg, off) - if err != nil { - return off, fmt.Errorf("ISDN.Address: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.SubAddress, off, err = unpackString(msg, off) - if err != nil { - return off, fmt.Errorf("ISDN.SubAddress: %w", err) - } - return off, nil -} - -func (rr *KEY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Flags, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("KEY.Flags: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Protocol, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("KEY.Protocol: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("KEY.Algorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.PublicKey, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("KEY.PublicKey: %w", err) - } - return off, nil -} - -func (rr *KX) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("KX.Preference: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Exchanger, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("KX.Exchanger: %w", err) - } - return off, nil -} - -func (rr *L32) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("L32.Preference: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Locator32, off, err = unpackDataA(msg, off) - if err != nil { - return off, fmt.Errorf("L32.Locator32: %w", err) - } - return off, nil -} - -func (rr *L64) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("L64.Preference: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Locator64, off, err = unpackUint64(msg, off) - if err != nil { - return off, fmt.Errorf("L64.Locator64: %w", err) - } - return off, nil -} - -func (rr *LOC) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Version, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("LOC.Version: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Size, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("LOC.Size: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.HorizPre, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("LOC.HorizPre: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.VertPre, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("LOC.VertPre: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Latitude, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("LOC.Latitude: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Longitude, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("LOC.Longitude: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Altitude, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("LOC.Altitude: %w", err) - } - return off, nil -} - -func (rr *LP) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("LP.Preference: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Fqdn, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("LP.Fqdn: %w", err) - } - return off, nil -} - -func (rr *MB) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Mb, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("MB.Mb: %w", err) - } - return off, nil -} - -func (rr *MD) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Md, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("MD.Md: %w", err) - } - return off, nil -} - -func (rr *MF) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Mf, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("MF.Mf: %w", err) - } - return off, nil -} - -func (rr *MG) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Mg, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("MG.Mg: %w", err) - } - return off, nil -} - -func (rr *MINFO) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Rmail, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("MINFO.Rmail: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Email, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("MINFO.Email: %w", err) - } - return off, nil -} - -func (rr *MR) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Mr, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("MR.Mr: %w", err) - } - return off, nil -} - -func (rr *MX) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("MX.Preference: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Mx, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("MX.Mx: %w", err) - } - return off, nil -} - -func (rr *NAPTR) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Order, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("NAPTR.Order: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("NAPTR.Preference: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Flags, off, err = unpackString(msg, off) - if err != nil { - return off, fmt.Errorf("NAPTR.Flags: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Service, off, err = unpackString(msg, off) - if err != nil { - return off, fmt.Errorf("NAPTR.Service: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Regexp, off, err = unpackString(msg, off) - if err != nil { - return off, fmt.Errorf("NAPTR.Regexp: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Replacement, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("NAPTR.Replacement: %w", err) - } - return off, nil -} - -func (rr *NID) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("NID.Preference: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.NodeID, off, err = unpackUint64(msg, off) - if err != nil { - return off, fmt.Errorf("NID.NodeID: %w", err) - } - return off, nil -} - -func (rr *NIMLOC) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Locator, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("NIMLOC.Locator: %w", err) - } - return off, nil -} - -func (rr *NINFO) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.ZSData, off, err = unpackStringTxt(msg, off) - if err != nil { - return off, fmt.Errorf("NINFO.ZSData: %w", err) - } - return off, nil -} - -func (rr *NS) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Ns, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("NS.Ns: %w", err) - } - return off, nil -} - -func (rr *NSAPPTR) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Ptr, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("NSAPPTR.Ptr: %w", err) - } - return off, nil -} - -func (rr *NSEC) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.NextDomain, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("NSEC.NextDomain: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.TypeBitMap, off, err = unpackDataNsec(msg, off) - if err != nil { - return off, fmt.Errorf("NSEC.TypeBitMap: %w", err) - } - return off, nil -} - -func (rr *NSEC3) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Hash, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("NSEC3.Hash: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Flags, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("NSEC3.Flags: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Iterations, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("NSEC3.Iterations: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.SaltLength, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("NSEC3.SaltLength: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Salt, off, err = unpackStringHex(msg, off, off+int(rr.SaltLength)) - if err != nil { - return off, err - } - rr.HashLength, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("NSEC3.HashLength: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.NextDomain, off, err = unpackStringBase32(msg, off, off+int(rr.HashLength)) - if err != nil { - return off, err - } - rr.TypeBitMap, off, err = unpackDataNsec(msg, off) - if err != nil { - return off, fmt.Errorf("NSEC3.TypeBitMap: %w", err) - } - return off, nil -} - -func (rr *NSEC3PARAM) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Hash, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("NSEC3PARAM.Hash: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Flags, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("NSEC3PARAM.Flags: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Iterations, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("NSEC3PARAM.Iterations: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.SaltLength, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("NSEC3PARAM.SaltLength: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Salt, off, err = unpackStringHex(msg, off, off+int(rr.SaltLength)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *NULL) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Data, off, err = unpackStringAny(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("NULL.Data: %w", err) - } - return off, nil -} - -func (rr *NXNAME) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - return off, nil -} - -func (rr *NXT) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.NextDomain, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("NXT.NextDomain: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.TypeBitMap, off, err = unpackDataNsec(msg, off) - if err != nil { - return off, fmt.Errorf("NXT.TypeBitMap: %w", err) - } - return off, nil -} - -func (rr *OPENPGPKEY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.PublicKey, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("OPENPGPKEY.PublicKey: %w", err) - } - return off, nil -} - -func (rr *OPT) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Option, off, err = unpackDataOpt(msg, off) - if err != nil { - return off, fmt.Errorf("OPT.Option: %w", err) - } - return off, nil -} - -func (rr *PTR) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Ptr, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("PTR.Ptr: %w", err) - } - return off, nil -} - -func (rr *PX) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("PX.Preference: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Map822, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("PX.Map822: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Mapx400, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("PX.Mapx400: %w", err) - } - return off, nil -} - -func (rr *RESINFO) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Txt, off, err = unpackStringTxt(msg, off) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *RFC3597) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Rdata, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("RFC3597.Rdata: %w", err) - } - return off, nil -} - -func (rr *RKEY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Flags, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("RKEY.Flags: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Protocol, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("RKEY.Protocol: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("RKEY.Algorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.PublicKey, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("RKEY.PublicKey: %w", err) - } - return off, nil -} - -func (rr *RP) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Mbox, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("RP.Mbox: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Txt, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("RP.Txt: %w", err) - } - return off, nil -} - -func (rr *RRSIG) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.TypeCovered, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("RRSIG.TypeCovered: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("RRSIG.Algorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Labels, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("RRSIG.Labels: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.OrigTtl, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("RRSIG.OrigTtl: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Expiration, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("RRSIG.Expiration: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Inception, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("RRSIG.Inception: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.KeyTag, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("RRSIG.KeyTag: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.SignerName, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("RRSIG.SignerName: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Signature, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("RRSIG.Signature: %w", err) - } - return off, nil -} - -func (rr *RT) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Preference, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("RT.Preference: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Host, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("RT.Host: %w", err) - } - return off, nil -} - -func (rr *SIG) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.TypeCovered, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("SIG.TypeCovered: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("SIG.Algorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Labels, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("SIG.Labels: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.OrigTtl, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("SIG.OrigTtl: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Expiration, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("SIG.Expiration: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Inception, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("SIG.Inception: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.KeyTag, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("SIG.KeyTag: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.SignerName, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("SIG.SignerName: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Signature, off, err = unpackStringBase64(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("SIG.Signature: %w", err) - } - return off, nil -} - -func (rr *SMIMEA) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Usage, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("SMIMEA.Usage: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Selector, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("SMIMEA.Selector: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.MatchingType, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("SMIMEA.MatchingType: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Certificate, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("SMIMEA.Certificate: %w", err) - } - return off, nil -} - -func (rr *SOA) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Ns, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("SOA.Ns: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Mbox, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("SOA.Mbox: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Serial, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("SOA.Serial: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Refresh, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("SOA.Refresh: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Retry, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("SOA.Retry: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Expire, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("SOA.Expire: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Minttl, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("SOA.Minttl: %w", err) - } - return off, nil -} - -func (rr *SPF) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Txt, off, err = unpackStringTxt(msg, off) - if err != nil { - return off, fmt.Errorf("SPF.Txt: %w", err) - } - return off, nil -} - -func (rr *SRV) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Priority, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("SRV.Priority: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Weight, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("SRV.Weight: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Port, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("SRV.Port: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Target, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("SRV.Target: %w", err) - } - return off, nil -} - -func (rr *SSHFP) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("SSHFP.Algorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Type, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("SSHFP.Type: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.FingerPrint, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("SSHFP.FingerPrint: %w", err) - } - return off, nil -} - -func (rr *SVCB) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Priority, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("SVCB.Priority: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Target, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("SVCB.Target: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Value, off, err = unpackDataSVCB(msg, off) - if err != nil { - return off, fmt.Errorf("SVCB.Value: %w", err) - } - return off, nil -} - -func (rr *TA) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.KeyTag, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("TA.KeyTag: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Algorithm, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("TA.Algorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.DigestType, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("TA.DigestType: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Digest, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("TA.Digest: %w", err) - } - return off, nil -} - -func (rr *TALINK) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.PreviousName, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("TALINK.PreviousName: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.NextName, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("TALINK.NextName: %w", err) - } - return off, nil -} - -func (rr *TKEY) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Algorithm, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("TKEY.Algorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Inception, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("TKEY.Inception: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Expiration, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("TKEY.Expiration: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Mode, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("TKEY.Mode: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Error, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("TKEY.Error: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.KeySize, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("TKEY.KeySize: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Key, off, err = unpackStringHex(msg, off, off+int(rr.KeySize)) - if err != nil { - return off, err - } - rr.OtherLen, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("TKEY.OtherLen: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.OtherData, off, err = unpackStringHex(msg, off, off+int(rr.OtherLen)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TLSA) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Usage, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("TLSA.Usage: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Selector, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("TLSA.Selector: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.MatchingType, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("TLSA.MatchingType: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Certificate, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("TLSA.Certificate: %w", err) - } - return off, nil -} - -func (rr *TSIG) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Algorithm, off, err = UnpackDomainName(msg, off) - if err != nil { - return off, fmt.Errorf("TSIG.Algorithm: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.TimeSigned, off, err = unpackUint48(msg, off) - if err != nil { - return off, fmt.Errorf("TSIG.TimeSigned: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Fudge, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("TSIG.Fudge: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.MACSize, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("TSIG.MACSize: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.MAC, off, err = unpackStringHex(msg, off, off+int(rr.MACSize)) - if err != nil { - return off, err - } - rr.OrigId, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("TSIG.OrigId: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Error, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("TSIG.Error: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.OtherLen, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("TSIG.OtherLen: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.OtherData, off, err = unpackStringHex(msg, off, off+int(rr.OtherLen)) - if err != nil { - return off, err - } - return off, nil -} - -func (rr *TXT) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Txt, off, err = unpackStringTxt(msg, off) - if err != nil { - return off, fmt.Errorf("TXT.Txt: %w", err) - } - return off, nil -} - -func (rr *UID) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Uid, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("UID.Uid: %w", err) - } - return off, nil -} - -func (rr *UINFO) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Uinfo, off, err = unpackString(msg, off) - if err != nil { - return off, fmt.Errorf("UINFO.Uinfo: %w", err) - } - return off, nil -} - -func (rr *URI) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Priority, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("URI.Priority: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Weight, off, err = unpackUint16(msg, off) - if err != nil { - return off, fmt.Errorf("URI.Weight: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Target, off, err = unpackStringOctet(msg, off) - if err != nil { - return off, fmt.Errorf("URI.Target: %w", err) - } - return off, nil -} - -func (rr *X25) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.PSDNAddress, off, err = unpackString(msg, off) - if err != nil { - return off, fmt.Errorf("X25.PSDNAddress: %w", err) - } - return off, nil -} - -func (rr *ZONEMD) unpack(msg []byte, off int) (off1 int, err error) { - rdStart := off - _ = rdStart - - rr.Serial, off, err = unpackUint32(msg, off) - if err != nil { - return off, fmt.Errorf("ZONEMD.Serial: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Scheme, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("ZONEMD.Scheme: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Hash, off, err = unpackUint8(msg, off) - if err != nil { - return off, fmt.Errorf("ZONEMD.Hash: %w", err) - } - if off == len(msg) { - return off, nil - } - rr.Digest, off, err = unpackStringHex(msg, off, rdStart+int(rr.Hdr.Rdlength)) - if err != nil { - return off, fmt.Errorf("ZONEMD.Digest: %w", err) - } - return off, nil -} diff --git a/vendor/github.com/miekg/dns/ztypes.go b/vendor/github.com/miekg/dns/ztypes.go deleted file mode 100644 index cea79ae772..0000000000 --- a/vendor/github.com/miekg/dns/ztypes.go +++ /dev/null @@ -1,1353 +0,0 @@ -// Code generated by "go run types_generate.go"; DO NOT EDIT. - -package dns - -import ( - "encoding/base64" - "net" -) - -// TypeToRR is a map of constructors for each RR type. -var TypeToRR = map[uint16]func() RR{ - TypeA: func() RR { return new(A) }, - TypeAAAA: func() RR { return new(AAAA) }, - TypeAFSDB: func() RR { return new(AFSDB) }, - TypeAMTRELAY: func() RR { return new(AMTRELAY) }, - TypeANY: func() RR { return new(ANY) }, - TypeAPL: func() RR { return new(APL) }, - TypeAVC: func() RR { return new(AVC) }, - TypeCAA: func() RR { return new(CAA) }, - TypeCDNSKEY: func() RR { return new(CDNSKEY) }, - TypeCDS: func() RR { return new(CDS) }, - TypeCERT: func() RR { return new(CERT) }, - TypeCNAME: func() RR { return new(CNAME) }, - TypeCSYNC: func() RR { return new(CSYNC) }, - TypeDHCID: func() RR { return new(DHCID) }, - TypeDLV: func() RR { return new(DLV) }, - TypeDNAME: func() RR { return new(DNAME) }, - TypeDNSKEY: func() RR { return new(DNSKEY) }, - TypeDS: func() RR { return new(DS) }, - TypeEID: func() RR { return new(EID) }, - TypeEUI48: func() RR { return new(EUI48) }, - TypeEUI64: func() RR { return new(EUI64) }, - TypeGID: func() RR { return new(GID) }, - TypeGPOS: func() RR { return new(GPOS) }, - TypeHINFO: func() RR { return new(HINFO) }, - TypeHIP: func() RR { return new(HIP) }, - TypeHTTPS: func() RR { return new(HTTPS) }, - TypeIPSECKEY: func() RR { return new(IPSECKEY) }, - TypeISDN: func() RR { return new(ISDN) }, - TypeKEY: func() RR { return new(KEY) }, - TypeKX: func() RR { return new(KX) }, - TypeL32: func() RR { return new(L32) }, - TypeL64: func() RR { return new(L64) }, - TypeLOC: func() RR { return new(LOC) }, - TypeLP: func() RR { return new(LP) }, - TypeMB: func() RR { return new(MB) }, - TypeMD: func() RR { return new(MD) }, - TypeMF: func() RR { return new(MF) }, - TypeMG: func() RR { return new(MG) }, - TypeMINFO: func() RR { return new(MINFO) }, - TypeMR: func() RR { return new(MR) }, - TypeMX: func() RR { return new(MX) }, - TypeNAPTR: func() RR { return new(NAPTR) }, - TypeNID: func() RR { return new(NID) }, - TypeNIMLOC: func() RR { return new(NIMLOC) }, - TypeNINFO: func() RR { return new(NINFO) }, - TypeNS: func() RR { return new(NS) }, - TypeNSAPPTR: func() RR { return new(NSAPPTR) }, - TypeNSEC: func() RR { return new(NSEC) }, - TypeNSEC3: func() RR { return new(NSEC3) }, - TypeNSEC3PARAM: func() RR { return new(NSEC3PARAM) }, - TypeNULL: func() RR { return new(NULL) }, - TypeNXNAME: func() RR { return new(NXNAME) }, - TypeNXT: func() RR { return new(NXT) }, - TypeOPENPGPKEY: func() RR { return new(OPENPGPKEY) }, - TypeOPT: func() RR { return new(OPT) }, - TypePTR: func() RR { return new(PTR) }, - TypePX: func() RR { return new(PX) }, - TypeRESINFO: func() RR { return new(RESINFO) }, - TypeRKEY: func() RR { return new(RKEY) }, - TypeRP: func() RR { return new(RP) }, - TypeRRSIG: func() RR { return new(RRSIG) }, - TypeRT: func() RR { return new(RT) }, - TypeSIG: func() RR { return new(SIG) }, - TypeSMIMEA: func() RR { return new(SMIMEA) }, - TypeSOA: func() RR { return new(SOA) }, - TypeSPF: func() RR { return new(SPF) }, - TypeSRV: func() RR { return new(SRV) }, - TypeSSHFP: func() RR { return new(SSHFP) }, - TypeSVCB: func() RR { return new(SVCB) }, - TypeTA: func() RR { return new(TA) }, - TypeTALINK: func() RR { return new(TALINK) }, - TypeTKEY: func() RR { return new(TKEY) }, - TypeTLSA: func() RR { return new(TLSA) }, - TypeTSIG: func() RR { return new(TSIG) }, - TypeTXT: func() RR { return new(TXT) }, - TypeUID: func() RR { return new(UID) }, - TypeUINFO: func() RR { return new(UINFO) }, - TypeURI: func() RR { return new(URI) }, - TypeX25: func() RR { return new(X25) }, - TypeZONEMD: func() RR { return new(ZONEMD) }, -} - -// TypeToString is a map of strings for each RR type. -var TypeToString = map[uint16]string{ - TypeA: "A", - TypeAAAA: "AAAA", - TypeAFSDB: "AFSDB", - TypeAMTRELAY: "AMTRELAY", - TypeANY: "ANY", - TypeAPL: "APL", - TypeATMA: "ATMA", - TypeAVC: "AVC", - TypeAXFR: "AXFR", - TypeCAA: "CAA", - TypeCDNSKEY: "CDNSKEY", - TypeCDS: "CDS", - TypeCERT: "CERT", - TypeCNAME: "CNAME", - TypeCSYNC: "CSYNC", - TypeDHCID: "DHCID", - TypeDLV: "DLV", - TypeDNAME: "DNAME", - TypeDNSKEY: "DNSKEY", - TypeDS: "DS", - TypeEID: "EID", - TypeEUI48: "EUI48", - TypeEUI64: "EUI64", - TypeGID: "GID", - TypeGPOS: "GPOS", - TypeHINFO: "HINFO", - TypeHIP: "HIP", - TypeHTTPS: "HTTPS", - TypeIPSECKEY: "IPSECKEY", - TypeISDN: "ISDN", - TypeIXFR: "IXFR", - TypeKEY: "KEY", - TypeKX: "KX", - TypeL32: "L32", - TypeL64: "L64", - TypeLOC: "LOC", - TypeLP: "LP", - TypeMAILA: "MAILA", - TypeMAILB: "MAILB", - TypeMB: "MB", - TypeMD: "MD", - TypeMF: "MF", - TypeMG: "MG", - TypeMINFO: "MINFO", - TypeMR: "MR", - TypeMX: "MX", - TypeNAPTR: "NAPTR", - TypeNID: "NID", - TypeNIMLOC: "NIMLOC", - TypeNINFO: "NINFO", - TypeNS: "NS", - TypeNSEC: "NSEC", - TypeNSEC3: "NSEC3", - TypeNSEC3PARAM: "NSEC3PARAM", - TypeNULL: "NULL", - TypeNXNAME: "NXNAME", - TypeNXT: "NXT", - TypeNone: "None", - TypeOPENPGPKEY: "OPENPGPKEY", - TypeOPT: "OPT", - TypePTR: "PTR", - TypePX: "PX", - TypeRESINFO: "RESINFO", - TypeRKEY: "RKEY", - TypeRP: "RP", - TypeRRSIG: "RRSIG", - TypeRT: "RT", - TypeReserved: "Reserved", - TypeSIG: "SIG", - TypeSMIMEA: "SMIMEA", - TypeSOA: "SOA", - TypeSPF: "SPF", - TypeSRV: "SRV", - TypeSSHFP: "SSHFP", - TypeSVCB: "SVCB", - TypeTA: "TA", - TypeTALINK: "TALINK", - TypeTKEY: "TKEY", - TypeTLSA: "TLSA", - TypeTSIG: "TSIG", - TypeTXT: "TXT", - TypeUID: "UID", - TypeUINFO: "UINFO", - TypeUNSPEC: "UNSPEC", - TypeURI: "URI", - TypeX25: "X25", - TypeZONEMD: "ZONEMD", - TypeNSAPPTR: "NSAP-PTR", -} - -func (rr *A) Header() *RR_Header { return &rr.Hdr } -func (rr *AAAA) Header() *RR_Header { return &rr.Hdr } -func (rr *AFSDB) Header() *RR_Header { return &rr.Hdr } -func (rr *AMTRELAY) Header() *RR_Header { return &rr.Hdr } -func (rr *ANY) Header() *RR_Header { return &rr.Hdr } -func (rr *APL) Header() *RR_Header { return &rr.Hdr } -func (rr *AVC) Header() *RR_Header { return &rr.Hdr } -func (rr *CAA) Header() *RR_Header { return &rr.Hdr } -func (rr *CDNSKEY) Header() *RR_Header { return &rr.Hdr } -func (rr *CDS) Header() *RR_Header { return &rr.Hdr } -func (rr *CERT) Header() *RR_Header { return &rr.Hdr } -func (rr *CNAME) Header() *RR_Header { return &rr.Hdr } -func (rr *CSYNC) Header() *RR_Header { return &rr.Hdr } -func (rr *DHCID) Header() *RR_Header { return &rr.Hdr } -func (rr *DLV) Header() *RR_Header { return &rr.Hdr } -func (rr *DNAME) Header() *RR_Header { return &rr.Hdr } -func (rr *DNSKEY) Header() *RR_Header { return &rr.Hdr } -func (rr *DS) Header() *RR_Header { return &rr.Hdr } -func (rr *EID) Header() *RR_Header { return &rr.Hdr } -func (rr *EUI48) Header() *RR_Header { return &rr.Hdr } -func (rr *EUI64) Header() *RR_Header { return &rr.Hdr } -func (rr *GID) Header() *RR_Header { return &rr.Hdr } -func (rr *GPOS) Header() *RR_Header { return &rr.Hdr } -func (rr *HINFO) Header() *RR_Header { return &rr.Hdr } -func (rr *HIP) Header() *RR_Header { return &rr.Hdr } -func (rr *HTTPS) Header() *RR_Header { return &rr.Hdr } -func (rr *IPSECKEY) Header() *RR_Header { return &rr.Hdr } -func (rr *ISDN) Header() *RR_Header { return &rr.Hdr } -func (rr *KEY) Header() *RR_Header { return &rr.Hdr } -func (rr *KX) Header() *RR_Header { return &rr.Hdr } -func (rr *L32) Header() *RR_Header { return &rr.Hdr } -func (rr *L64) Header() *RR_Header { return &rr.Hdr } -func (rr *LOC) Header() *RR_Header { return &rr.Hdr } -func (rr *LP) Header() *RR_Header { return &rr.Hdr } -func (rr *MB) Header() *RR_Header { return &rr.Hdr } -func (rr *MD) Header() *RR_Header { return &rr.Hdr } -func (rr *MF) Header() *RR_Header { return &rr.Hdr } -func (rr *MG) Header() *RR_Header { return &rr.Hdr } -func (rr *MINFO) Header() *RR_Header { return &rr.Hdr } -func (rr *MR) Header() *RR_Header { return &rr.Hdr } -func (rr *MX) Header() *RR_Header { return &rr.Hdr } -func (rr *NAPTR) Header() *RR_Header { return &rr.Hdr } -func (rr *NID) Header() *RR_Header { return &rr.Hdr } -func (rr *NIMLOC) Header() *RR_Header { return &rr.Hdr } -func (rr *NINFO) Header() *RR_Header { return &rr.Hdr } -func (rr *NS) Header() *RR_Header { return &rr.Hdr } -func (rr *NSAPPTR) Header() *RR_Header { return &rr.Hdr } -func (rr *NSEC) Header() *RR_Header { return &rr.Hdr } -func (rr *NSEC3) Header() *RR_Header { return &rr.Hdr } -func (rr *NSEC3PARAM) Header() *RR_Header { return &rr.Hdr } -func (rr *NULL) Header() *RR_Header { return &rr.Hdr } -func (rr *NXNAME) Header() *RR_Header { return &rr.Hdr } -func (rr *NXT) Header() *RR_Header { return &rr.Hdr } -func (rr *OPENPGPKEY) Header() *RR_Header { return &rr.Hdr } -func (rr *OPT) Header() *RR_Header { return &rr.Hdr } -func (rr *PTR) Header() *RR_Header { return &rr.Hdr } -func (rr *PX) Header() *RR_Header { return &rr.Hdr } -func (rr *RESINFO) Header() *RR_Header { return &rr.Hdr } -func (rr *RFC3597) Header() *RR_Header { return &rr.Hdr } -func (rr *RKEY) Header() *RR_Header { return &rr.Hdr } -func (rr *RP) Header() *RR_Header { return &rr.Hdr } -func (rr *RRSIG) Header() *RR_Header { return &rr.Hdr } -func (rr *RT) Header() *RR_Header { return &rr.Hdr } -func (rr *SIG) Header() *RR_Header { return &rr.Hdr } -func (rr *SMIMEA) Header() *RR_Header { return &rr.Hdr } -func (rr *SOA) Header() *RR_Header { return &rr.Hdr } -func (rr *SPF) Header() *RR_Header { return &rr.Hdr } -func (rr *SRV) Header() *RR_Header { return &rr.Hdr } -func (rr *SSHFP) Header() *RR_Header { return &rr.Hdr } -func (rr *SVCB) Header() *RR_Header { return &rr.Hdr } -func (rr *TA) Header() *RR_Header { return &rr.Hdr } -func (rr *TALINK) Header() *RR_Header { return &rr.Hdr } -func (rr *TKEY) Header() *RR_Header { return &rr.Hdr } -func (rr *TLSA) Header() *RR_Header { return &rr.Hdr } -func (rr *TSIG) Header() *RR_Header { return &rr.Hdr } -func (rr *TXT) Header() *RR_Header { return &rr.Hdr } -func (rr *UID) Header() *RR_Header { return &rr.Hdr } -func (rr *UINFO) Header() *RR_Header { return &rr.Hdr } -func (rr *URI) Header() *RR_Header { return &rr.Hdr } -func (rr *X25) Header() *RR_Header { return &rr.Hdr } -func (rr *ZONEMD) Header() *RR_Header { return &rr.Hdr } - -// len() functions -func (rr *A) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - if len(rr.A) != 0 { - l += net.IPv4len - } - return l -} - -func (rr *AAAA) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - if len(rr.AAAA) != 0 { - l += net.IPv6len - } - return l -} - -func (rr *AFSDB) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Subtype - l += domainNameLen(rr.Hostname, off+l, compression, false) - return l -} - -func (rr *AMTRELAY) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // Precedence - l++ // GatewayType - switch rr.GatewayType { - case AMTRELAYIPv4: - l += net.IPv4len - case AMTRELAYIPv6: - l += net.IPv6len - case AMTRELAYHost: - l += len(rr.GatewayHost) + 1 - } - return l -} - -func (rr *ANY) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - return l -} - -func (rr *APL) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - for _, x := range rr.Prefixes { - l += x.len() - } - return l -} - -func (rr *AVC) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - for _, x := range rr.Txt { - l += len(x) + 1 - } - return l -} - -func (rr *CAA) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // Flag - l += len(rr.Tag) + 1 - l += len(rr.Value) - return l -} - -func (rr *CERT) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Type - l += 2 // KeyTag - l++ // Algorithm - l += base64.StdEncoding.DecodedLen(len(rr.Certificate)) - return l -} - -func (rr *CNAME) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Target, off+l, compression, true) - return l -} - -func (rr *DHCID) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += base64.StdEncoding.DecodedLen(len(rr.Digest)) - return l -} - -func (rr *DNAME) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Target, off+l, compression, false) - return l -} - -func (rr *DNSKEY) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Flags - l++ // Protocol - l++ // Algorithm - l += base64.StdEncoding.DecodedLen(len(rr.PublicKey)) - return l -} - -func (rr *DS) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // KeyTag - l++ // Algorithm - l++ // DigestType - l += len(rr.Digest) / 2 - return l -} - -func (rr *EID) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.Endpoint) / 2 - return l -} - -func (rr *EUI48) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 6 // Address - return l -} - -func (rr *EUI64) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 8 // Address - return l -} - -func (rr *GID) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 4 // Gid - return l -} - -func (rr *GPOS) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.Longitude) + 1 - l += len(rr.Latitude) + 1 - l += len(rr.Altitude) + 1 - return l -} - -func (rr *HINFO) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.Cpu) + 1 - l += len(rr.Os) + 1 - return l -} - -func (rr *HIP) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // HitLength - l++ // PublicKeyAlgorithm - l += 2 // PublicKeyLength - l += len(rr.Hit) / 2 - l += base64.StdEncoding.DecodedLen(len(rr.PublicKey)) - for _, x := range rr.RendezvousServers { - l += domainNameLen(x, off+l, compression, false) - } - return l -} - -func (rr *IPSECKEY) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // Precedence - l++ // GatewayType - l++ // Algorithm - switch rr.GatewayType { - case IPSECGatewayIPv4: - l += net.IPv4len - case IPSECGatewayIPv6: - l += net.IPv6len - case IPSECGatewayHost: - l += len(rr.GatewayHost) + 1 - } - l += base64.StdEncoding.DecodedLen(len(rr.PublicKey)) - return l -} - -func (rr *ISDN) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.Address) + 1 - l += len(rr.SubAddress) + 1 - return l -} - -func (rr *KX) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - l += domainNameLen(rr.Exchanger, off+l, compression, false) - return l -} - -func (rr *L32) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - if len(rr.Locator32) != 0 { - l += net.IPv4len - } - return l -} - -func (rr *L64) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - l += 8 // Locator64 - return l -} - -func (rr *LOC) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // Version - l++ // Size - l++ // HorizPre - l++ // VertPre - l += 4 // Latitude - l += 4 // Longitude - l += 4 // Altitude - return l -} - -func (rr *LP) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - l += domainNameLen(rr.Fqdn, off+l, compression, false) - return l -} - -func (rr *MB) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Mb, off+l, compression, true) - return l -} - -func (rr *MD) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Md, off+l, compression, true) - return l -} - -func (rr *MF) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Mf, off+l, compression, true) - return l -} - -func (rr *MG) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Mg, off+l, compression, true) - return l -} - -func (rr *MINFO) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Rmail, off+l, compression, true) - l += domainNameLen(rr.Email, off+l, compression, true) - return l -} - -func (rr *MR) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Mr, off+l, compression, true) - return l -} - -func (rr *MX) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - l += domainNameLen(rr.Mx, off+l, compression, true) - return l -} - -func (rr *NAPTR) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Order - l += 2 // Preference - l += len(rr.Flags) + 1 - l += len(rr.Service) + 1 - l += len(rr.Regexp) + 1 - l += domainNameLen(rr.Replacement, off+l, compression, false) - return l -} - -func (rr *NID) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - l += 8 // NodeID - return l -} - -func (rr *NIMLOC) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.Locator) / 2 - return l -} - -func (rr *NINFO) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - for _, x := range rr.ZSData { - l += len(x) + 1 - } - return l -} - -func (rr *NS) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Ns, off+l, compression, true) - return l -} - -func (rr *NSAPPTR) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Ptr, off+l, compression, false) - return l -} - -func (rr *NSEC3PARAM) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // Hash - l++ // Flags - l += 2 // Iterations - l++ // SaltLength - l += len(rr.Salt) / 2 - return l -} - -func (rr *NULL) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.Data) - return l -} - -func (rr *NXNAME) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - return l -} - -func (rr *OPENPGPKEY) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += base64.StdEncoding.DecodedLen(len(rr.PublicKey)) - return l -} - -func (rr *PTR) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Ptr, off+l, compression, true) - return l -} - -func (rr *PX) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - l += domainNameLen(rr.Map822, off+l, compression, false) - l += domainNameLen(rr.Mapx400, off+l, compression, false) - return l -} - -func (rr *RESINFO) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - for _, x := range rr.Txt { - l += len(x) + 1 - } - return l -} - -func (rr *RFC3597) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.Rdata) / 2 - return l -} - -func (rr *RKEY) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Flags - l++ // Protocol - l++ // Algorithm - l += base64.StdEncoding.DecodedLen(len(rr.PublicKey)) - return l -} - -func (rr *RP) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Mbox, off+l, compression, false) - l += domainNameLen(rr.Txt, off+l, compression, false) - return l -} - -func (rr *RRSIG) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // TypeCovered - l++ // Algorithm - l++ // Labels - l += 4 // OrigTtl - l += 4 // Expiration - l += 4 // Inception - l += 2 // KeyTag - l += domainNameLen(rr.SignerName, off+l, compression, false) - l += base64.StdEncoding.DecodedLen(len(rr.Signature)) - return l -} - -func (rr *RT) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Preference - l += domainNameLen(rr.Host, off+l, compression, false) - return l -} - -func (rr *SMIMEA) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // Usage - l++ // Selector - l++ // MatchingType - l += len(rr.Certificate) / 2 - return l -} - -func (rr *SOA) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Ns, off+l, compression, true) - l += domainNameLen(rr.Mbox, off+l, compression, true) - l += 4 // Serial - l += 4 // Refresh - l += 4 // Retry - l += 4 // Expire - l += 4 // Minttl - return l -} - -func (rr *SPF) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - for _, x := range rr.Txt { - l += len(x) + 1 - } - return l -} - -func (rr *SRV) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Priority - l += 2 // Weight - l += 2 // Port - l += domainNameLen(rr.Target, off+l, compression, false) - return l -} - -func (rr *SSHFP) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // Algorithm - l++ // Type - l += len(rr.FingerPrint) / 2 - return l -} - -func (rr *SVCB) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Priority - l += domainNameLen(rr.Target, off+l, compression, false) - for _, x := range rr.Value { - l += 4 + int(x.len()) - } - return l -} - -func (rr *TA) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // KeyTag - l++ // Algorithm - l++ // DigestType - l += len(rr.Digest) / 2 - return l -} - -func (rr *TALINK) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.PreviousName, off+l, compression, false) - l += domainNameLen(rr.NextName, off+l, compression, false) - return l -} - -func (rr *TKEY) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Algorithm, off+l, compression, false) - l += 4 // Inception - l += 4 // Expiration - l += 2 // Mode - l += 2 // Error - l += 2 // KeySize - l += len(rr.Key) / 2 - l += 2 // OtherLen - l += len(rr.OtherData) / 2 - return l -} - -func (rr *TLSA) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l++ // Usage - l++ // Selector - l++ // MatchingType - l += len(rr.Certificate) / 2 - return l -} - -func (rr *TSIG) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += domainNameLen(rr.Algorithm, off+l, compression, false) - l += 6 // TimeSigned - l += 2 // Fudge - l += 2 // MACSize - l += len(rr.MAC) / 2 - l += 2 // OrigId - l += 2 // Error - l += 2 // OtherLen - l += len(rr.OtherData) / 2 - return l -} - -func (rr *TXT) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - for _, x := range rr.Txt { - l += len(x) + 1 - } - return l -} - -func (rr *UID) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 4 // Uid - return l -} - -func (rr *UINFO) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.Uinfo) + 1 - return l -} - -func (rr *URI) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 2 // Priority - l += 2 // Weight - l += len(rr.Target) - return l -} - -func (rr *X25) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += len(rr.PSDNAddress) + 1 - return l -} - -func (rr *ZONEMD) len(off int, compression map[string]struct{}) int { - l := rr.Hdr.len(off, compression) - l += 4 // Serial - l++ // Scheme - l++ // Hash - l += len(rr.Digest) / 2 - return l -} - -// copy() functions -func (rr *A) copy() RR { - return &A{rr.Hdr, cloneSlice(rr.A)} -} - -func (rr *AAAA) copy() RR { - return &AAAA{rr.Hdr, cloneSlice(rr.AAAA)} -} - -func (rr *AFSDB) copy() RR { - return &AFSDB{rr.Hdr, rr.Subtype, rr.Hostname} -} - -func (rr *AMTRELAY) copy() RR { - return &AMTRELAY{ - rr.Hdr, - rr.Precedence, - rr.GatewayType, - cloneSlice(rr.GatewayAddr), - rr.GatewayHost, - } -} - -func (rr *ANY) copy() RR { - return &ANY{rr.Hdr} -} - -func (rr *APL) copy() RR { - Prefixes := make([]APLPrefix, len(rr.Prefixes)) - for i, e := range rr.Prefixes { - Prefixes[i] = e.copy() - } - return &APL{rr.Hdr, Prefixes} -} - -func (rr *AVC) copy() RR { - return &AVC{rr.Hdr, cloneSlice(rr.Txt)} -} - -func (rr *CAA) copy() RR { - return &CAA{ - rr.Hdr, - rr.Flag, - rr.Tag, - rr.Value, - } -} - -func (rr *CDNSKEY) copy() RR { - return &CDNSKEY{*rr.DNSKEY.copy().(*DNSKEY)} -} - -func (rr *CDS) copy() RR { - return &CDS{*rr.DS.copy().(*DS)} -} - -func (rr *CERT) copy() RR { - return &CERT{ - rr.Hdr, - rr.Type, - rr.KeyTag, - rr.Algorithm, - rr.Certificate, - } -} - -func (rr *CNAME) copy() RR { - return &CNAME{rr.Hdr, rr.Target} -} - -func (rr *CSYNC) copy() RR { - return &CSYNC{ - rr.Hdr, - rr.Serial, - rr.Flags, - cloneSlice(rr.TypeBitMap), - } -} - -func (rr *DHCID) copy() RR { - return &DHCID{rr.Hdr, rr.Digest} -} - -func (rr *DLV) copy() RR { - return &DLV{*rr.DS.copy().(*DS)} -} - -func (rr *DNAME) copy() RR { - return &DNAME{rr.Hdr, rr.Target} -} - -func (rr *DNSKEY) copy() RR { - return &DNSKEY{ - rr.Hdr, - rr.Flags, - rr.Protocol, - rr.Algorithm, - rr.PublicKey, - } -} - -func (rr *DS) copy() RR { - return &DS{ - rr.Hdr, - rr.KeyTag, - rr.Algorithm, - rr.DigestType, - rr.Digest, - } -} - -func (rr *EID) copy() RR { - return &EID{rr.Hdr, rr.Endpoint} -} - -func (rr *EUI48) copy() RR { - return &EUI48{rr.Hdr, rr.Address} -} - -func (rr *EUI64) copy() RR { - return &EUI64{rr.Hdr, rr.Address} -} - -func (rr *GID) copy() RR { - return &GID{rr.Hdr, rr.Gid} -} - -func (rr *GPOS) copy() RR { - return &GPOS{ - rr.Hdr, - rr.Longitude, - rr.Latitude, - rr.Altitude, - } -} - -func (rr *HINFO) copy() RR { - return &HINFO{rr.Hdr, rr.Cpu, rr.Os} -} - -func (rr *HIP) copy() RR { - return &HIP{ - rr.Hdr, - rr.HitLength, - rr.PublicKeyAlgorithm, - rr.PublicKeyLength, - rr.Hit, - rr.PublicKey, - cloneSlice(rr.RendezvousServers), - } -} - -func (rr *HTTPS) copy() RR { - return &HTTPS{*rr.SVCB.copy().(*SVCB)} -} - -func (rr *IPSECKEY) copy() RR { - return &IPSECKEY{ - rr.Hdr, - rr.Precedence, - rr.GatewayType, - rr.Algorithm, - cloneSlice(rr.GatewayAddr), - rr.GatewayHost, - rr.PublicKey, - } -} - -func (rr *ISDN) copy() RR { - return &ISDN{rr.Hdr, rr.Address, rr.SubAddress} -} - -func (rr *KEY) copy() RR { - return &KEY{*rr.DNSKEY.copy().(*DNSKEY)} -} - -func (rr *KX) copy() RR { - return &KX{rr.Hdr, rr.Preference, rr.Exchanger} -} - -func (rr *L32) copy() RR { - return &L32{rr.Hdr, rr.Preference, cloneSlice(rr.Locator32)} -} - -func (rr *L64) copy() RR { - return &L64{rr.Hdr, rr.Preference, rr.Locator64} -} - -func (rr *LOC) copy() RR { - return &LOC{ - rr.Hdr, - rr.Version, - rr.Size, - rr.HorizPre, - rr.VertPre, - rr.Latitude, - rr.Longitude, - rr.Altitude, - } -} - -func (rr *LP) copy() RR { - return &LP{rr.Hdr, rr.Preference, rr.Fqdn} -} - -func (rr *MB) copy() RR { - return &MB{rr.Hdr, rr.Mb} -} - -func (rr *MD) copy() RR { - return &MD{rr.Hdr, rr.Md} -} - -func (rr *MF) copy() RR { - return &MF{rr.Hdr, rr.Mf} -} - -func (rr *MG) copy() RR { - return &MG{rr.Hdr, rr.Mg} -} - -func (rr *MINFO) copy() RR { - return &MINFO{rr.Hdr, rr.Rmail, rr.Email} -} - -func (rr *MR) copy() RR { - return &MR{rr.Hdr, rr.Mr} -} - -func (rr *MX) copy() RR { - return &MX{rr.Hdr, rr.Preference, rr.Mx} -} - -func (rr *NAPTR) copy() RR { - return &NAPTR{ - rr.Hdr, - rr.Order, - rr.Preference, - rr.Flags, - rr.Service, - rr.Regexp, - rr.Replacement, - } -} - -func (rr *NID) copy() RR { - return &NID{rr.Hdr, rr.Preference, rr.NodeID} -} - -func (rr *NIMLOC) copy() RR { - return &NIMLOC{rr.Hdr, rr.Locator} -} - -func (rr *NINFO) copy() RR { - return &NINFO{rr.Hdr, cloneSlice(rr.ZSData)} -} - -func (rr *NS) copy() RR { - return &NS{rr.Hdr, rr.Ns} -} - -func (rr *NSAPPTR) copy() RR { - return &NSAPPTR{rr.Hdr, rr.Ptr} -} - -func (rr *NSEC) copy() RR { - return &NSEC{rr.Hdr, rr.NextDomain, cloneSlice(rr.TypeBitMap)} -} - -func (rr *NSEC3) copy() RR { - return &NSEC3{ - rr.Hdr, - rr.Hash, - rr.Flags, - rr.Iterations, - rr.SaltLength, - rr.Salt, - rr.HashLength, - rr.NextDomain, - cloneSlice(rr.TypeBitMap), - } -} - -func (rr *NSEC3PARAM) copy() RR { - return &NSEC3PARAM{ - rr.Hdr, - rr.Hash, - rr.Flags, - rr.Iterations, - rr.SaltLength, - rr.Salt, - } -} - -func (rr *NULL) copy() RR { - return &NULL{rr.Hdr, rr.Data} -} - -func (rr *NXNAME) copy() RR { - return &NXNAME{rr.Hdr} -} - -func (rr *NXT) copy() RR { - return &NXT{*rr.NSEC.copy().(*NSEC)} -} - -func (rr *OPENPGPKEY) copy() RR { - return &OPENPGPKEY{rr.Hdr, rr.PublicKey} -} - -func (rr *OPT) copy() RR { - Option := make([]EDNS0, len(rr.Option)) - for i, e := range rr.Option { - Option[i] = e.copy() - } - return &OPT{rr.Hdr, Option} -} - -func (rr *PTR) copy() RR { - return &PTR{rr.Hdr, rr.Ptr} -} - -func (rr *PX) copy() RR { - return &PX{ - rr.Hdr, - rr.Preference, - rr.Map822, - rr.Mapx400, - } -} - -func (rr *RESINFO) copy() RR { - return &RESINFO{rr.Hdr, cloneSlice(rr.Txt)} -} - -func (rr *RFC3597) copy() RR { - return &RFC3597{rr.Hdr, rr.Rdata} -} - -func (rr *RKEY) copy() RR { - return &RKEY{ - rr.Hdr, - rr.Flags, - rr.Protocol, - rr.Algorithm, - rr.PublicKey, - } -} - -func (rr *RP) copy() RR { - return &RP{rr.Hdr, rr.Mbox, rr.Txt} -} - -func (rr *RRSIG) copy() RR { - return &RRSIG{ - rr.Hdr, - rr.TypeCovered, - rr.Algorithm, - rr.Labels, - rr.OrigTtl, - rr.Expiration, - rr.Inception, - rr.KeyTag, - rr.SignerName, - rr.Signature, - } -} - -func (rr *RT) copy() RR { - return &RT{rr.Hdr, rr.Preference, rr.Host} -} - -func (rr *SIG) copy() RR { - return &SIG{*rr.RRSIG.copy().(*RRSIG)} -} - -func (rr *SMIMEA) copy() RR { - return &SMIMEA{ - rr.Hdr, - rr.Usage, - rr.Selector, - rr.MatchingType, - rr.Certificate, - } -} - -func (rr *SOA) copy() RR { - return &SOA{ - rr.Hdr, - rr.Ns, - rr.Mbox, - rr.Serial, - rr.Refresh, - rr.Retry, - rr.Expire, - rr.Minttl, - } -} - -func (rr *SPF) copy() RR { - return &SPF{rr.Hdr, cloneSlice(rr.Txt)} -} - -func (rr *SRV) copy() RR { - return &SRV{ - rr.Hdr, - rr.Priority, - rr.Weight, - rr.Port, - rr.Target, - } -} - -func (rr *SSHFP) copy() RR { - return &SSHFP{ - rr.Hdr, - rr.Algorithm, - rr.Type, - rr.FingerPrint, - } -} - -func (rr *SVCB) copy() RR { - Value := make([]SVCBKeyValue, len(rr.Value)) - for i, e := range rr.Value { - Value[i] = e.copy() - } - return &SVCB{ - rr.Hdr, - rr.Priority, - rr.Target, - Value, - } -} - -func (rr *TA) copy() RR { - return &TA{ - rr.Hdr, - rr.KeyTag, - rr.Algorithm, - rr.DigestType, - rr.Digest, - } -} - -func (rr *TALINK) copy() RR { - return &TALINK{rr.Hdr, rr.PreviousName, rr.NextName} -} - -func (rr *TKEY) copy() RR { - return &TKEY{ - rr.Hdr, - rr.Algorithm, - rr.Inception, - rr.Expiration, - rr.Mode, - rr.Error, - rr.KeySize, - rr.Key, - rr.OtherLen, - rr.OtherData, - } -} - -func (rr *TLSA) copy() RR { - return &TLSA{ - rr.Hdr, - rr.Usage, - rr.Selector, - rr.MatchingType, - rr.Certificate, - } -} - -func (rr *TSIG) copy() RR { - return &TSIG{ - rr.Hdr, - rr.Algorithm, - rr.TimeSigned, - rr.Fudge, - rr.MACSize, - rr.MAC, - rr.OrigId, - rr.Error, - rr.OtherLen, - rr.OtherData, - } -} - -func (rr *TXT) copy() RR { - return &TXT{rr.Hdr, cloneSlice(rr.Txt)} -} - -func (rr *UID) copy() RR { - return &UID{rr.Hdr, rr.Uid} -} - -func (rr *UINFO) copy() RR { - return &UINFO{rr.Hdr, rr.Uinfo} -} - -func (rr *URI) copy() RR { - return &URI{ - rr.Hdr, - rr.Priority, - rr.Weight, - rr.Target, - } -} - -func (rr *X25) copy() RR { - return &X25{rr.Hdr, rr.PSDNAddress} -} - -func (rr *ZONEMD) copy() RR { - return &ZONEMD{ - rr.Hdr, - rr.Serial, - rr.Scheme, - rr.Hash, - rr.Digest, - } -} diff --git a/vendor/github.com/pierrec/lz4/v4/.gitignore b/vendor/github.com/pierrec/lz4/v4/.gitignore deleted file mode 100644 index 5d7e88de0a..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/.gitignore +++ /dev/null @@ -1,36 +0,0 @@ -# Created by https://www.gitignore.io/api/macos - -### macOS ### -*.DS_Store -.AppleDouble -.LSOverride - -# Icon must end with two \r -Icon - - -# Thumbnails -._* - -# Files that might appear in the root of a volume -.DocumentRevisions-V100 -.fseventsd -.Spotlight-V100 -.TemporaryItems -.Trashes -.VolumeIcon.icns -.com.apple.timemachine.donotpresent - -# Directories potentially created on remote AFP share -.AppleDB -.AppleDesktop -Network Trash Folder -Temporary Items -.apdisk - -# End of https://www.gitignore.io/api/macos - -cmd/*/*exe -.idea - -fuzz/*.zip diff --git a/vendor/github.com/pierrec/lz4/v4/LICENSE b/vendor/github.com/pierrec/lz4/v4/LICENSE deleted file mode 100644 index bd899d8353..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/LICENSE +++ /dev/null @@ -1,28 +0,0 @@ -Copyright (c) 2015, Pierre Curto -All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - -* Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. - -* Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - -* Neither the name of xxHash nor the names of its - contributors may be used to endorse or promote products derived from - this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE -FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, -OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - diff --git a/vendor/github.com/pierrec/lz4/v4/README.md b/vendor/github.com/pierrec/lz4/v4/README.md deleted file mode 100644 index 4629c9d0e0..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/README.md +++ /dev/null @@ -1,92 +0,0 @@ -# lz4 : LZ4 compression in pure Go - -[![Go Reference](https://pkg.go.dev/badge/github.com/pierrec/lz4/v4.svg)](https://pkg.go.dev/github.com/pierrec/lz4/v4) -[![CI](https://github.com/pierrec/lz4/workflows/ci/badge.svg)](https://github.com/pierrec/lz4/actions) -[![Go Report Card](https://goreportcard.com/badge/github.com/pierrec/lz4)](https://goreportcard.com/report/github.com/pierrec/lz4) -[![GitHub tag (latest SemVer)](https://img.shields.io/github/tag/pierrec/lz4.svg?style=social)](https://github.com/pierrec/lz4/tags) - -## Overview - -This package provides a streaming interface to [LZ4 data streams](http://fastcompression.blogspot.fr/2013/04/lz4-streaming-format-final.html) as well as low level compress and uncompress functions for LZ4 data blocks. -The implementation is based on the reference C [one](https://github.com/lz4/lz4). - -## Install - -Assuming you have the go toolchain installed: - -``` -go get github.com/pierrec/lz4/v4 -``` - -There is a command line interface tool to compress and decompress LZ4 files. - -``` -go install github.com/pierrec/lz4/v4/cmd/lz4c -``` - -Usage - -``` -Usage of lz4c: - -version - print the program version - -Subcommands: -Compress the given files or from stdin to stdout. -compress [arguments] [ ...] - -bc - enable block checksum - -l int - compression level (0=fastest) - -sc - disable stream checksum - -size string - block max size [64K,256K,1M,4M] (default "4M") - -Uncompress the given files or from stdin to stdout. -uncompress [arguments] [ ...] - -``` - - -## Example - -``` -// Compress and uncompress an input string. -s := "hello world" -r := strings.NewReader(s) - -// The pipe will uncompress the data from the writer. -pr, pw := io.Pipe() -zw := lz4.NewWriter(pw) -zr := lz4.NewReader(pr) - -go func() { - // Compress the input string. - _, _ = io.Copy(zw, r) - _ = zw.Close() // Make sure the writer is closed - _ = pw.Close() // Terminate the pipe -}() - -_, _ = io.Copy(os.Stdout, zr) - -// Output: -// hello world -``` - -## Contributing - -Contributions are very welcome for bug fixing, performance improvements...! - -- Open an issue with a proper description -- Send a pull request with appropriate test case(s) - -## Contributors - -Thanks to all [contributors](https://github.com/pierrec/lz4/graphs/contributors) so far! - -Special thanks to [@Zariel](https://github.com/Zariel) for his asm implementation of the decoder. - -Special thanks to [@greatroar](https://github.com/greatroar) for his work on the asm implementations of the decoder for amd64 and arm64. - -Special thanks to [@klauspost](https://github.com/klauspost) for his work on optimizing the code. diff --git a/vendor/github.com/pierrec/lz4/v4/internal/lz4block/block.go b/vendor/github.com/pierrec/lz4/v4/internal/lz4block/block.go deleted file mode 100644 index 8a5c0d36e2..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/internal/lz4block/block.go +++ /dev/null @@ -1,476 +0,0 @@ -package lz4block - -import ( - "encoding/binary" - "math/bits" - "sync" - - "github.com/pierrec/lz4/v4/internal/lz4errors" -) - -const ( - // The following constants are used to setup the compression algorithm. - minMatch = 4 // the minimum size of the match sequence size (4 bytes) - winSizeLog = 16 // LZ4 64Kb window size limit - winSize = 1 << winSizeLog - winMask = winSize - 1 // 64Kb window of previous data for dependent blocks - - // hashLog determines the size of the hash table used to quickly find a previous match position. - // Its value influences the compression speed and memory usage, the lower the faster, - // but at the expense of the compression ratio. - // 16 seems to be the best compromise for fast compression. - hashLog = 16 - htSize = 1 << hashLog - - mfLimit = 10 + minMatch // The last match cannot start within the last 14 bytes. -) - -func recoverBlock(e *error) { - if r := recover(); r != nil && *e == nil { - *e = lz4errors.ErrInvalidSourceShortBuffer - } -} - -// blockHash hashes the lower five bytes of x into a value < htSize. -func blockHash(x uint64) uint32 { - const prime6bytes = 227718039650203 - x &= 1<<40 - 1 - return uint32((x * prime6bytes) >> (64 - hashLog)) -} - -func CompressBlockBound(n int) int { - return n + n/255 + 16 -} - -func UncompressBlock(src, dst, dict []byte) (int, error) { - if len(src) == 0 { - return 0, nil - } - if di := decodeBlock(dst, src, dict); di >= 0 { - return di, nil - } - return 0, lz4errors.ErrInvalidSourceShortBuffer -} - -type Compressor struct { - // Offsets are at most 64kiB, so we can store only the lower 16 bits of - // match positions: effectively, an offset from some 64kiB block boundary. - // - // When we retrieve such an offset, we interpret it as relative to the last - // block boundary si &^ 0xffff, or the one before, (si &^ 0xffff) - 0x10000, - // depending on which of these is inside the current window. If a table - // entry was generated more than 64kiB back in the input, we find out by - // inspecting the input stream. - table [htSize]uint16 - - needsReset bool -} - -// Get returns the position of a presumptive match for the hash h. -// The match may be a false positive due to a hash collision or an old entry. -// If si < winSize, the return value may be negative. -func (c *Compressor) get(h uint32, si int) int { - h &= htSize - 1 - i := int(c.table[h]) - i += si &^ winMask - if i >= si { - // Try previous 64kiB block (negative when in first block). - i -= winSize - } - return i -} - -func (c *Compressor) put(h uint32, si int) { - h &= htSize - 1 - c.table[h] = uint16(si) -} - -var compressorPool = sync.Pool{New: func() interface{} { return new(Compressor) }} - -func CompressBlock(src, dst []byte) (int, error) { - c := compressorPool.Get().(*Compressor) - n, err := c.CompressBlock(src, dst) - compressorPool.Put(c) - return n, err -} - -func (c *Compressor) CompressBlock(src, dst []byte) (int, error) { - if c.needsReset { - // Zero out reused table to avoid non-deterministic output (issue #65). - c.table = [htSize]uint16{} - } - c.needsReset = true // Only false on first call. - - // Return 0, nil only if the destination buffer size is < CompressBlockBound. - isNotCompressible := len(dst) < CompressBlockBound(len(src)) - - // adaptSkipLog sets how quickly the compressor begins skipping blocks when data is incompressible. - // This significantly speeds up incompressible data and usually has very small impact on compression. - // bytes to skip = 1 + (bytes since last match >> adaptSkipLog) - const adaptSkipLog = 7 - - // si: Current position of the search. - // anchor: Position of the current literals. - var si, di, anchor int - sn := len(src) - mfLimit - if sn <= 0 { - goto lastLiterals - } - - // Fast scan strategy: the hash table only stores the last five-byte sequences. - for si < sn { - // Hash the next five bytes (sequence)... - match := binary.LittleEndian.Uint64(src[si:]) - h := blockHash(match) - h2 := blockHash(match >> 8) - - // We check a match at s, s+1 and s+2 and pick the first one we get. - // Checking 3 only requires us to load the source one. - ref := c.get(h, si) - ref2 := c.get(h2, si) - c.put(h, si) - c.put(h2, si+1) - - offset := si - ref - - if offset <= 0 || offset >= winSize || uint32(match) != binary.LittleEndian.Uint32(src[ref:]) { - // No match. Start calculating another hash. - // The processor can usually do this out-of-order. - h = blockHash(match >> 16) - ref3 := c.get(h, si+2) - - // Check the second match at si+1 - si += 1 - offset = si - ref2 - - if offset <= 0 || offset >= winSize || uint32(match>>8) != binary.LittleEndian.Uint32(src[ref2:]) { - // No match. Check the third match at si+2 - si += 1 - offset = si - ref3 - c.put(h, si) - - if offset <= 0 || offset >= winSize || uint32(match>>16) != binary.LittleEndian.Uint32(src[ref3:]) { - // Skip one extra byte (at si+3) before we check 3 matches again. - si += 2 + (si-anchor)>>adaptSkipLog - continue - } - } - } - - // Match found. - lLen := si - anchor // Literal length. - // We already matched 4 bytes. - mLen := 4 - - // Extend backwards if we can, reducing literals. - tOff := si - offset - 1 - for lLen > 0 && tOff >= 0 && src[si-1] == src[tOff] { - si-- - tOff-- - lLen-- - mLen++ - } - - // Add the match length, so we continue search at the end. - // Use mLen to store the offset base. - si, mLen = si+mLen, si+minMatch - - // Find the longest match by looking by batches of 8 bytes. - for si+8 < sn { - x := binary.LittleEndian.Uint64(src[si:]) ^ binary.LittleEndian.Uint64(src[si-offset:]) - if x == 0 { - si += 8 - } else { - // Stop is first non-zero byte. - si += bits.TrailingZeros64(x) >> 3 - break - } - } - - mLen = si - mLen - if di >= len(dst) { - return 0, lz4errors.ErrInvalidSourceShortBuffer - } - if mLen < 0xF { - dst[di] = byte(mLen) - } else { - dst[di] = 0xF - } - - // Encode literals length. - if lLen < 0xF { - dst[di] |= byte(lLen << 4) - } else { - dst[di] |= 0xF0 - di++ - l := lLen - 0xF - for ; l >= 0xFF && di < len(dst); l -= 0xFF { - dst[di] = 0xFF - di++ - } - if di >= len(dst) { - return 0, lz4errors.ErrInvalidSourceShortBuffer - } - dst[di] = byte(l) - } - di++ - - // Literals. - if di+lLen > len(dst) { - return 0, lz4errors.ErrInvalidSourceShortBuffer - } - copy(dst[di:di+lLen], src[anchor:anchor+lLen]) - di += lLen + 2 - anchor = si - - // Encode offset. - if di > len(dst) { - return 0, lz4errors.ErrInvalidSourceShortBuffer - } - dst[di-2], dst[di-1] = byte(offset), byte(offset>>8) - - // Encode match length part 2. - if mLen >= 0xF { - for mLen -= 0xF; mLen >= 0xFF && di < len(dst); mLen -= 0xFF { - dst[di] = 0xFF - di++ - } - if di >= len(dst) { - return 0, lz4errors.ErrInvalidSourceShortBuffer - } - dst[di] = byte(mLen) - di++ - } - // Check if we can load next values. - if si >= sn { - break - } - // Hash match end-2 - h = blockHash(binary.LittleEndian.Uint64(src[si-2:])) - c.put(h, si-2) - } - -lastLiterals: - if isNotCompressible && anchor == 0 { - // Incompressible. - return 0, nil - } - - // Last literals. - if di >= len(dst) { - return 0, lz4errors.ErrInvalidSourceShortBuffer - } - lLen := len(src) - anchor - if lLen < 0xF { - dst[di] = byte(lLen << 4) - } else { - dst[di] = 0xF0 - di++ - for lLen -= 0xF; lLen >= 0xFF && di < len(dst); lLen -= 0xFF { - dst[di] = 0xFF - di++ - } - if di >= len(dst) { - return 0, lz4errors.ErrInvalidSourceShortBuffer - } - dst[di] = byte(lLen) - } - di++ - - // Write the last literals. - if isNotCompressible && di >= anchor { - // Incompressible. - return 0, nil - } - if di+len(src)-anchor > len(dst) { - return 0, lz4errors.ErrInvalidSourceShortBuffer - } - di += copy(dst[di:di+len(src)-anchor], src[anchor:]) - return di, nil -} - -// blockHash hashes 4 bytes into a value < winSize. -func blockHashHC(x uint32) uint32 { - const hasher uint32 = 2654435761 // Knuth multiplicative hash. - return x * hasher >> (32 - winSizeLog) -} - -type CompressorHC struct { - // hashTable: stores the last position found for a given hash - // chainTable: stores previous positions for a given hash - hashTable, chainTable [htSize]int - needsReset bool -} - -var compressorHCPool = sync.Pool{New: func() interface{} { return new(CompressorHC) }} - -func CompressBlockHC(src, dst []byte, depth CompressionLevel) (int, error) { - c := compressorHCPool.Get().(*CompressorHC) - n, err := c.CompressBlock(src, dst, depth) - compressorHCPool.Put(c) - return n, err -} - -func (c *CompressorHC) CompressBlock(src, dst []byte, depth CompressionLevel) (_ int, err error) { - if c.needsReset { - // Zero out reused table to avoid non-deterministic output (issue #65). - c.hashTable = [htSize]int{} - c.chainTable = [htSize]int{} - } - c.needsReset = true // Only false on first call. - - defer recoverBlock(&err) - - // Return 0, nil only if the destination buffer size is < CompressBlockBound. - isNotCompressible := len(dst) < CompressBlockBound(len(src)) - - // adaptSkipLog sets how quickly the compressor begins skipping blocks when data is incompressible. - // This significantly speeds up incompressible data and usually has very small impact on compression. - // bytes to skip = 1 + (bytes since last match >> adaptSkipLog) - const adaptSkipLog = 7 - - var si, di, anchor int - sn := len(src) - mfLimit - if sn <= 0 { - goto lastLiterals - } - - if depth == 0 { - depth = winSize - } - - for si < sn { - // Hash the next 4 bytes (sequence). - match := binary.LittleEndian.Uint32(src[si:]) - h := blockHashHC(match) - - // Follow the chain until out of window and give the longest match. - mLen := 0 - offset := 0 - for next, try := c.hashTable[h], depth; try > 0 && next > 0 && si-next < winSize; next, try = c.chainTable[next&winMask], try-1 { - // The first (mLen==0) or next byte (mLen>=minMatch) at current match length - // must match to improve on the match length. - if src[next+mLen] != src[si+mLen] { - continue - } - ml := 0 - // Compare the current position with a previous with the same hash. - for ml < sn-si { - x := binary.LittleEndian.Uint64(src[next+ml:]) ^ binary.LittleEndian.Uint64(src[si+ml:]) - if x == 0 { - ml += 8 - } else { - // Stop is first non-zero byte. - ml += bits.TrailingZeros64(x) >> 3 - break - } - } - if ml < minMatch || ml <= mLen { - // Match too small (>adaptSkipLog - continue - } - - // Match found. - // Update hash/chain tables with overlapping bytes: - // si already hashed, add everything from si+1 up to the match length. - winStart := si + 1 - if ws := si + mLen - winSize; ws > winStart { - winStart = ws - } - for si, ml := winStart, si+mLen; si < ml; { - match >>= 8 - match |= uint32(src[si+3]) << 24 - h := blockHashHC(match) - c.chainTable[si&winMask] = c.hashTable[h] - c.hashTable[h] = si - si++ - } - - lLen := si - anchor - si += mLen - mLen -= minMatch // Match length does not include minMatch. - - if mLen < 0xF { - dst[di] = byte(mLen) - } else { - dst[di] = 0xF - } - - // Encode literals length. - if lLen < 0xF { - dst[di] |= byte(lLen << 4) - } else { - dst[di] |= 0xF0 - di++ - l := lLen - 0xF - for ; l >= 0xFF; l -= 0xFF { - dst[di] = 0xFF - di++ - } - dst[di] = byte(l) - } - di++ - - // Literals. - copy(dst[di:di+lLen], src[anchor:anchor+lLen]) - di += lLen - anchor = si - - // Encode offset. - di += 2 - dst[di-2], dst[di-1] = byte(offset), byte(offset>>8) - - // Encode match length part 2. - if mLen >= 0xF { - for mLen -= 0xF; mLen >= 0xFF; mLen -= 0xFF { - dst[di] = 0xFF - di++ - } - dst[di] = byte(mLen) - di++ - } - } - - if isNotCompressible && anchor == 0 { - // Incompressible. - return 0, nil - } - - // Last literals. -lastLiterals: - lLen := len(src) - anchor - if lLen < 0xF { - dst[di] = byte(lLen << 4) - } else { - dst[di] = 0xF0 - di++ - lLen -= 0xF - for ; lLen >= 0xFF; lLen -= 0xFF { - dst[di] = 0xFF - di++ - } - dst[di] = byte(lLen) - } - di++ - - // Write the last literals. - if isNotCompressible && di >= anchor { - // Incompressible. - return 0, nil - } - di += copy(dst[di:di+len(src)-anchor], src[anchor:]) - return di, nil -} diff --git a/vendor/github.com/pierrec/lz4/v4/internal/lz4block/blocks.go b/vendor/github.com/pierrec/lz4/v4/internal/lz4block/blocks.go deleted file mode 100644 index 138083d947..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/internal/lz4block/blocks.go +++ /dev/null @@ -1,87 +0,0 @@ -// Package lz4block provides LZ4 BlockSize types and pools of buffers. -package lz4block - -import "sync" - -const ( - Block64Kb uint32 = 1 << (16 + iota*2) - Block256Kb - Block1Mb - Block4Mb - Block8Mb = 2 * Block4Mb -) - -var ( - BlockPool64K = sync.Pool{New: func() interface{} { return make([]byte, Block64Kb) }} - BlockPool256K = sync.Pool{New: func() interface{} { return make([]byte, Block256Kb) }} - BlockPool1M = sync.Pool{New: func() interface{} { return make([]byte, Block1Mb) }} - BlockPool4M = sync.Pool{New: func() interface{} { return make([]byte, Block4Mb) }} - BlockPool8M = sync.Pool{New: func() interface{} { return make([]byte, Block8Mb) }} -) - -func Index(b uint32) BlockSizeIndex { - switch b { - case Block64Kb: - return 4 - case Block256Kb: - return 5 - case Block1Mb: - return 6 - case Block4Mb: - return 7 - case Block8Mb: // only valid in legacy mode - return 3 - } - return 0 -} - -func IsValid(b uint32) bool { - return Index(b) > 0 -} - -type BlockSizeIndex uint8 - -func (b BlockSizeIndex) IsValid() bool { - switch b { - case 4, 5, 6, 7: - return true - } - return false -} - -func (b BlockSizeIndex) Get() []byte { - var buf interface{} - switch b { - case 4: - buf = BlockPool64K.Get() - case 5: - buf = BlockPool256K.Get() - case 6: - buf = BlockPool1M.Get() - case 7: - buf = BlockPool4M.Get() - case 3: - buf = BlockPool8M.Get() - } - return buf.([]byte) -} - -func Put(buf []byte) { - // Safeguard: do not allow invalid buffers. - switch c := cap(buf); uint32(c) { - case Block64Kb: - BlockPool64K.Put(buf[:c]) - case Block256Kb: - BlockPool256K.Put(buf[:c]) - case Block1Mb: - BlockPool1M.Put(buf[:c]) - case Block4Mb: - BlockPool4M.Put(buf[:c]) - case Block8Mb: - BlockPool8M.Put(buf[:c]) - } -} - -type CompressionLevel uint32 - -const Fast CompressionLevel = 0 diff --git a/vendor/github.com/pierrec/lz4/v4/internal/lz4block/decode_amd64.s b/vendor/github.com/pierrec/lz4/v4/internal/lz4block/decode_amd64.s deleted file mode 100644 index d47d688000..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/internal/lz4block/decode_amd64.s +++ /dev/null @@ -1,446 +0,0 @@ -// +build !appengine -// +build gc -// +build !noasm - -#include "go_asm.h" -#include "textflag.h" - -// AX scratch -// BX scratch -// CX scratch -// DX token -// -// DI &dst -// SI &src -// R8 &dst + len(dst) -// R9 &src + len(src) -// R11 &dst -// R12 short output end -// R13 short input end -// R14 &dict -// R15 len(dict) - -// func decodeBlock(dst, src, dict []byte) int -TEXT ·decodeBlock(SB), NOSPLIT, $48-80 - MOVQ dst_base+0(FP), DI - MOVQ DI, R11 - MOVQ dst_len+8(FP), R8 - ADDQ DI, R8 - - MOVQ src_base+24(FP), SI - MOVQ src_len+32(FP), R9 - CMPQ R9, $0 - JE err_corrupt - ADDQ SI, R9 - - MOVQ dict_base+48(FP), R14 - MOVQ dict_len+56(FP), R15 - - // shortcut ends - // short output end - MOVQ R8, R12 - SUBQ $32, R12 - // short input end - MOVQ R9, R13 - SUBQ $16, R13 - -loop: - // for si < len(src) - CMPQ SI, R9 - JAE end - - // token := uint32(src[si]) - MOVBQZX (SI), DX - INCQ SI - - // lit_len = token >> 4 - // if lit_len > 0 - // CX = lit_len - MOVQ DX, CX - SHRQ $4, CX - JZ finish_lit_copy - - // if lit_len != 0xF - CMPQ CX, $0xF - JEQ lit_len_loop_pre - CMPQ DI, R12 - JAE lit_len_loop_pre - CMPQ SI, R13 - JAE lit_len_loop_pre - - // copy shortcut - - // A two-stage shortcut for the most common case: - // 1) If the literal length is 0..14, and there is enough space, - // enter the shortcut and copy 16 bytes on behalf of the literals - // (in the fast mode, only 8 bytes can be safely copied this way). - // 2) Further if the match length is 4..18, copy 18 bytes in a similar - // manner; but we ensure that there's enough space in the output for - // those 18 bytes earlier, upon entering the shortcut (in other words, - // there is a combined check for both stages). - - // copy literal - MOVOU (SI), X0 - MOVOU X0, (DI) - ADDQ CX, DI - ADDQ CX, SI - - MOVQ DX, CX - ANDQ $0xF, CX - - // The second stage: prepare for match copying, decode full info. - // If it doesn't work out, the info won't be wasted. - // offset := uint16(data[:2]) - MOVWQZX (SI), DX - ADDQ $2, SI - JC err_short_buf - - MOVQ DI, AX - SUBQ DX, AX - JC err_corrupt - CMPQ AX, DI - JA err_short_buf - - // if we can't do the second stage then jump straight to read the - // match length, we already have the offset. - CMPQ CX, $0xF - JEQ match_len_loop_pre - CMPQ DX, $8 - JLT match_len_loop_pre - CMPQ AX, R11 - JB match_len_loop_pre - - // memcpy(op + 0, match + 0, 8); - MOVQ (AX), BX - MOVQ BX, (DI) - // memcpy(op + 8, match + 8, 8); - MOVQ 8(AX), BX - MOVQ BX, 8(DI) - // memcpy(op +16, match +16, 2); - MOVW 16(AX), BX - MOVW BX, 16(DI) - - LEAQ const_minMatch(DI)(CX*1), DI - - // shortcut complete, load next token - JMP loop - -lit_len_loop_pre: - CMPQ CX, $0xF - JNE copy_literal - - // do { BX = src[si++]; lit_len += BX } while (BX == 0xFF). -lit_len_loop: - CMPQ SI, R9 - JAE err_short_buf - - MOVBLZX (SI), BX - INCQ SI - ADDQ BX, CX - - CMPB BX, $0xFF - JE lit_len_loop - -copy_literal: - // bounds check src and dst - MOVQ SI, AX - ADDQ CX, AX - JC err_short_buf - CMPQ AX, R9 - JA err_short_buf - - MOVQ DI, BX - ADDQ CX, BX - JC err_short_buf - CMPQ BX, R8 - JA err_short_buf - - // Copy matches of <=48 bytes through the XMM registers. - CMPQ CX, $48 - JGT memmove_lit - - // if len(dst[di:]) < 48 - MOVQ R8, AX - SUBQ DI, AX - CMPQ AX, $48 - JLT memmove_lit - - // if len(src[si:]) < 48 - MOVQ R9, BX - SUBQ SI, BX - CMPQ BX, $48 - JLT memmove_lit - - MOVOU (SI), X0 - MOVOU 16(SI), X1 - MOVOU 32(SI), X2 - MOVOU X0, (DI) - MOVOU X1, 16(DI) - MOVOU X2, 32(DI) - - ADDQ CX, SI - ADDQ CX, DI - - JMP finish_lit_copy - -memmove_lit: - // memmove(to, from, len) - MOVQ DI, 0(SP) - MOVQ SI, 8(SP) - MOVQ CX, 16(SP) - - // Spill registers. Increment SI, DI now so we don't need to save CX. - ADDQ CX, DI - ADDQ CX, SI - MOVQ DI, 24(SP) - MOVQ SI, 32(SP) - MOVL DX, 40(SP) - - CALL runtime·memmove(SB) - - // restore registers - MOVQ 24(SP), DI - MOVQ 32(SP), SI - MOVL 40(SP), DX - - // recalc initial values - MOVQ dst_base+0(FP), R8 - MOVQ R8, R11 - ADDQ dst_len+8(FP), R8 - MOVQ src_base+24(FP), R9 - ADDQ src_len+32(FP), R9 - MOVQ dict_base+48(FP), R14 - MOVQ dict_len+56(FP), R15 - MOVQ R8, R12 - SUBQ $32, R12 - MOVQ R9, R13 - SUBQ $16, R13 - -finish_lit_copy: - CMPQ SI, R9 - JAE end - -offset: - // CX := mLen - // free up DX to use for offset - MOVQ DX, CX - - // offset - // si += 2 - // DX := int(src[si-2]) | int(src[si-1])<<8 - ADDQ $2, SI - JC err_short_buf - CMPQ SI, R9 - JA err_short_buf - MOVWQZX -2(SI), DX - - // 0 offset is invalid - CMPQ DX, $0 - JEQ err_corrupt - - ANDB $0xF, CX - -match_len_loop_pre: - // if mlen != 0xF - CMPB CX, $0xF - JNE copy_match - - // do { BX = src[si++]; mlen += BX } while (BX == 0xFF). -match_len_loop: - CMPQ SI, R9 - JAE err_short_buf - - MOVBLZX (SI), BX - INCQ SI - ADDQ BX, CX - - CMPB BX, $0xFF - JE match_len_loop - -copy_match: - // mLen += minMatch - ADDQ $4, CX - - // check we have match_len bytes left in dst - // di+match_len < len(dst) - MOVQ DI, AX - ADDQ CX, AX - JC err_short_buf - CMPQ AX, R8 - JA err_short_buf - - // DX = offset - // CX = match_len - // BX = &dst + (di - offset) - MOVQ DI, BX - SUBQ DX, BX - - // check BX is within dst - // if BX < &dst - JC copy_match_from_dict - CMPQ BX, R11 - JBE copy_match_from_dict - - // if offset + match_len < di - LEAQ (BX)(CX*1), AX - CMPQ DI, AX - JA copy_interior_match - - // AX := len(dst[:di]) - // MOVQ DI, AX - // SUBQ R11, AX - - // copy 16 bytes at a time - // if di-offset < 16 copy 16-(di-offset) bytes to di - // then do the remaining - -copy_match_loop: - // for match_len >= 0 - // dst[di] = dst[i] - // di++ - // i++ - MOVB (BX), AX - MOVB AX, (DI) - INCQ DI - INCQ BX - DECQ CX - JNZ copy_match_loop - - JMP loop - -copy_interior_match: - CMPQ CX, $16 - JGT memmove_match - - // if len(dst[di:]) < 16 - MOVQ R8, AX - SUBQ DI, AX - CMPQ AX, $16 - JLT memmove_match - - MOVOU (BX), X0 - MOVOU X0, (DI) - - ADDQ CX, DI - JMP loop - -copy_match_from_dict: - // CX = match_len - // BX = &dst + (di - offset) - - // AX = offset - di = dict_bytes_available => count of bytes potentially covered by the dictionary - MOVQ R11, AX - SUBQ BX, AX - - // BX = len(dict) - dict_bytes_available - MOVQ R15, BX - SUBQ AX, BX - JS err_short_dict - - ADDQ R14, BX - - // if match_len > dict_bytes_available, match fits entirely within external dictionary : just copy - CMPQ CX, AX - JLT memmove_match - - // The match stretches over the dictionary and our block - // 1) copy what comes from the dictionary - // AX = dict_bytes_available = copy_size - // BX = &dict_end - copy_size - // CX = match_len - - // memmove(to, from, len) - MOVQ DI, 0(SP) - MOVQ BX, 8(SP) - MOVQ AX, 16(SP) - // store extra stuff we want to recover - // spill - MOVQ DI, 24(SP) - MOVQ SI, 32(SP) - MOVQ CX, 40(SP) - CALL runtime·memmove(SB) - - // restore registers - MOVQ 16(SP), AX // copy_size - MOVQ 24(SP), DI - MOVQ 32(SP), SI - MOVQ 40(SP), CX // match_len - - // recalc initial values - MOVQ dst_base+0(FP), R8 - MOVQ R8, R11 // TODO: make these sensible numbers - ADDQ dst_len+8(FP), R8 - MOVQ src_base+24(FP), R9 - ADDQ src_len+32(FP), R9 - MOVQ dict_base+48(FP), R14 - MOVQ dict_len+56(FP), R15 - MOVQ R8, R12 - SUBQ $32, R12 - MOVQ R9, R13 - SUBQ $16, R13 - - // di+=copy_size - ADDQ AX, DI - - // 2) copy the rest from the current block - // CX = match_len - copy_size = rest_size - SUBQ AX, CX - MOVQ R11, BX - - // check if we have a copy overlap - // AX = &dst + rest_size - MOVQ CX, AX - ADDQ BX, AX - // if &dst + rest_size > di, copy byte by byte - CMPQ AX, DI - - JA copy_match_loop - -memmove_match: - // memmove(to, from, len) - MOVQ DI, 0(SP) - MOVQ BX, 8(SP) - MOVQ CX, 16(SP) - - // Spill registers. Increment DI now so we don't need to save CX. - ADDQ CX, DI - MOVQ DI, 24(SP) - MOVQ SI, 32(SP) - - CALL runtime·memmove(SB) - - // restore registers - MOVQ 24(SP), DI - MOVQ 32(SP), SI - - // recalc initial values - MOVQ dst_base+0(FP), R8 - MOVQ R8, R11 // TODO: make these sensible numbers - ADDQ dst_len+8(FP), R8 - MOVQ src_base+24(FP), R9 - ADDQ src_len+32(FP), R9 - MOVQ R8, R12 - SUBQ $32, R12 - MOVQ R9, R13 - SUBQ $16, R13 - MOVQ dict_base+48(FP), R14 - MOVQ dict_len+56(FP), R15 - - JMP loop - -err_corrupt: - MOVQ $-1, ret+72(FP) - RET - -err_short_buf: - MOVQ $-2, ret+72(FP) - RET - -err_short_dict: - MOVQ $-3, ret+72(FP) - RET - -end: - SUBQ R11, DI - MOVQ DI, ret+72(FP) - RET diff --git a/vendor/github.com/pierrec/lz4/v4/internal/lz4block/decode_arm.s b/vendor/github.com/pierrec/lz4/v4/internal/lz4block/decode_arm.s deleted file mode 100644 index 0c5696ef1a..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/internal/lz4block/decode_arm.s +++ /dev/null @@ -1,229 +0,0 @@ -// +build gc -// +build !noasm - -#include "go_asm.h" -#include "textflag.h" - -// Register allocation. -#define dst R0 -#define dstorig R1 -#define src R2 -#define dstend R3 -#define srcend R4 -#define match R5 // Match address. -#define dictend R6 -#define token R7 -#define len R8 // Literal and match lengths. -#define offset R7 // Match offset; overlaps with token. -#define tmp1 R9 -#define tmp2 R11 -#define tmp3 R12 - -// func decodeBlock(dst, src, dict []byte) int -TEXT ·decodeBlock(SB), NOFRAME+NOSPLIT, $-4-40 - MOVW dst_base +0(FP), dst - MOVW dst_len +4(FP), dstend - MOVW src_base +12(FP), src - MOVW src_len +16(FP), srcend - - CMP $0, srcend - BEQ shortSrc - - ADD dst, dstend - ADD src, srcend - - MOVW dst, dstorig - -loop: - // Read token. Extract literal length. - MOVBU.P 1(src), token - MOVW token >> 4, len - CMP $15, len - BNE readLitlenDone - -readLitlenLoop: - CMP src, srcend - BEQ shortSrc - MOVBU.P 1(src), tmp1 - ADD.S tmp1, len - BVS shortDst - CMP $255, tmp1 - BEQ readLitlenLoop - -readLitlenDone: - CMP $0, len - BEQ copyLiteralDone - - // Bounds check dst+len and src+len. - ADD.S dst, len, tmp1 - ADD.CC.S src, len, tmp2 - BCS shortSrc - CMP dstend, tmp1 - //BHI shortDst // Uncomment for distinct error codes. - CMP.LS srcend, tmp2 - BHI shortSrc - - // Copy literal. - CMP $4, len - BLO copyLiteralFinish - - // Copy 0-3 bytes until src is aligned. - TST $1, src - MOVBU.NE.P 1(src), tmp1 - MOVB.NE.P tmp1, 1(dst) - SUB.NE $1, len - - TST $2, src - MOVHU.NE.P 2(src), tmp2 - MOVB.NE.P tmp2, 1(dst) - MOVW.NE tmp2 >> 8, tmp1 - MOVB.NE.P tmp1, 1(dst) - SUB.NE $2, len - - B copyLiteralLoopCond - -copyLiteralLoop: - // Aligned load, unaligned write. - MOVW.P 4(src), tmp1 - MOVW tmp1 >> 8, tmp2 - MOVB tmp2, 1(dst) - MOVW tmp1 >> 16, tmp3 - MOVB tmp3, 2(dst) - MOVW tmp1 >> 24, tmp2 - MOVB tmp2, 3(dst) - MOVB.P tmp1, 4(dst) -copyLiteralLoopCond: - // Loop until len-4 < 0. - SUB.S $4, len - BPL copyLiteralLoop - -copyLiteralFinish: - // Copy remaining 0-3 bytes. - // At this point, len may be < 0, but len&3 is still accurate. - TST $1, len - MOVB.NE.P 1(src), tmp3 - MOVB.NE.P tmp3, 1(dst) - TST $2, len - MOVB.NE.P 2(src), tmp1 - MOVB.NE.P tmp1, 2(dst) - MOVB.NE -1(src), tmp2 - MOVB.NE tmp2, -1(dst) - -copyLiteralDone: - CMP src, srcend - BEQ end - - // Initial part of match length. - // This frees up the token register for reuse as offset. - AND $15, token, len - - // Read offset. - ADD.S $2, src - BCS shortSrc - CMP srcend, src - BHI shortSrc - MOVBU -2(src), offset - MOVBU -1(src), tmp1 - ORR.S tmp1 << 8, offset - BEQ corrupt - - // Read rest of match length. - CMP $15, len - BNE readMatchlenDone - -readMatchlenLoop: - CMP src, srcend - BEQ shortSrc - MOVBU.P 1(src), tmp1 - ADD.S tmp1, len - BVS shortDst - CMP $255, tmp1 - BEQ readMatchlenLoop - -readMatchlenDone: - // Bounds check dst+len+minMatch. - ADD.S dst, len, tmp1 - ADD.CC.S $const_minMatch, tmp1 - BCS shortDst - CMP dstend, tmp1 - BHI shortDst - - RSB dst, offset, match - CMP dstorig, match - BGE copyMatch4 - - // match < dstorig means the match starts in the dictionary, - // at len(dict) - offset + (dst - dstorig). - MOVW dict_base+24(FP), match - MOVW dict_len +28(FP), dictend - - ADD $const_minMatch, len - - RSB dst, dstorig, tmp1 - RSB dictend, offset, tmp2 - ADD.S tmp2, tmp1 - BMI shortDict - ADD match, dictend - ADD tmp1, match - -copyDict: - MOVBU.P 1(match), tmp1 - MOVB.P tmp1, 1(dst) - SUB.S $1, len - CMP.NE match, dictend - BNE copyDict - - // If the match extends beyond the dictionary, the rest is at dstorig. - CMP $0, len - BEQ copyMatchDone - MOVW dstorig, match - B copyMatch - - // Copy a regular match. - // Since len+minMatch is at least four, we can do a 4× unrolled - // byte copy loop. Using MOVW instead of four byte loads is faster, - // but to remain portable we'd have to align match first, which is - // too expensive. By alternating loads and stores, we also handle - // the case offset < 4. -copyMatch4: - SUB.S $4, len - MOVBU.P 4(match), tmp1 - MOVB.P tmp1, 4(dst) - MOVBU -3(match), tmp2 - MOVB tmp2, -3(dst) - MOVBU -2(match), tmp3 - MOVB tmp3, -2(dst) - MOVBU -1(match), tmp1 - MOVB tmp1, -1(dst) - BPL copyMatch4 - - // Restore len, which is now negative. - ADD.S $4, len - BEQ copyMatchDone - -copyMatch: - // Finish with a byte-at-a-time copy. - SUB.S $1, len - MOVBU.P 1(match), tmp2 - MOVB.P tmp2, 1(dst) - BNE copyMatch - -copyMatchDone: - CMP src, srcend - BNE loop - -end: - SUB dstorig, dst, tmp1 - MOVW tmp1, ret+36(FP) - RET - - // The error cases have distinct labels so we can put different - // return codes here when debugging, or if the error returns need to - // be changed. -shortDict: -shortDst: -shortSrc: -corrupt: - MOVW $-1, tmp1 - MOVW tmp1, ret+36(FP) - RET diff --git a/vendor/github.com/pierrec/lz4/v4/internal/lz4block/decode_arm64.s b/vendor/github.com/pierrec/lz4/v4/internal/lz4block/decode_arm64.s deleted file mode 100644 index cf2761cee3..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/internal/lz4block/decode_arm64.s +++ /dev/null @@ -1,242 +0,0 @@ -// +build gc -// +build !noasm - -// This implementation assumes that strict alignment checking is turned off. -// The Go compiler makes the same assumption. - -#include "go_asm.h" -#include "textflag.h" - -// Register allocation. -#define dst R0 -#define dstorig R1 -#define src R2 -#define dstend R3 -#define dstend16 R4 // dstend - 16 -#define srcend R5 -#define srcend16 R6 // srcend - 16 -#define match R7 // Match address. -#define dict R8 -#define dictlen R9 -#define dictend R10 -#define token R11 -#define len R12 // Literal and match lengths. -#define lenRem R13 -#define offset R14 // Match offset. -#define tmp1 R15 -#define tmp2 R16 -#define tmp3 R17 -#define tmp4 R19 - -// func decodeBlock(dst, src, dict []byte) int -TEXT ·decodeBlock(SB), NOFRAME+NOSPLIT, $0-80 - LDP dst_base+0(FP), (dst, dstend) - ADD dst, dstend - MOVD dst, dstorig - - LDP src_base+24(FP), (src, srcend) - CBZ srcend, shortSrc - ADD src, srcend - - // dstend16 = max(dstend-16, 0) and similarly for srcend16. - SUBS $16, dstend, dstend16 - CSEL LO, ZR, dstend16, dstend16 - SUBS $16, srcend, srcend16 - CSEL LO, ZR, srcend16, srcend16 - - LDP dict_base+48(FP), (dict, dictlen) - ADD dict, dictlen, dictend - -loop: - // Read token. Extract literal length. - MOVBU.P 1(src), token - LSR $4, token, len - CMP $15, len - BNE readLitlenDone - -readLitlenLoop: - CMP src, srcend - BEQ shortSrc - MOVBU.P 1(src), tmp1 - ADDS tmp1, len - BVS shortDst - CMP $255, tmp1 - BEQ readLitlenLoop - -readLitlenDone: - CBZ len, copyLiteralDone - - // Bounds check dst+len and src+len. - ADDS dst, len, tmp1 - BCS shortSrc - ADDS src, len, tmp2 - BCS shortSrc - CMP dstend, tmp1 - BHI shortDst - CMP srcend, tmp2 - BHI shortSrc - - // Copy literal. - SUBS $16, len - BLO copyLiteralShort - -copyLiteralLoop: - LDP.P 16(src), (tmp1, tmp2) - STP.P (tmp1, tmp2), 16(dst) - SUBS $16, len - BPL copyLiteralLoop - - // Copy (final part of) literal of length 0-15. - // If we have >=16 bytes left in src and dst, just copy 16 bytes. -copyLiteralShort: - CMP dstend16, dst - CCMP LO, src, srcend16, $0b0010 // 0010 = preserve carry (LO). - BHS copyLiteralShortEnd - - AND $15, len - - LDP (src), (tmp1, tmp2) - ADD len, src - STP (tmp1, tmp2), (dst) - ADD len, dst - - B copyLiteralDone - - // Safe but slow copy near the end of src, dst. -copyLiteralShortEnd: - TBZ $3, len, 3(PC) - MOVD.P 8(src), tmp1 - MOVD.P tmp1, 8(dst) - TBZ $2, len, 3(PC) - MOVW.P 4(src), tmp2 - MOVW.P tmp2, 4(dst) - TBZ $1, len, 3(PC) - MOVH.P 2(src), tmp3 - MOVH.P tmp3, 2(dst) - TBZ $0, len, 3(PC) - MOVBU.P 1(src), tmp4 - MOVB.P tmp4, 1(dst) - -copyLiteralDone: - CMP src, srcend - BEQ end - - // Read offset. - ADDS $2, src - BCS shortSrc - CMP srcend, src - BHI shortSrc - MOVHU -2(src), offset - CBZ offset, corrupt - - // Read match length. - AND $15, token, len - CMP $15, len - BNE readMatchlenDone - -readMatchlenLoop: - CMP src, srcend - BEQ shortSrc - MOVBU.P 1(src), tmp1 - ADDS tmp1, len - BVS shortDst - CMP $255, tmp1 - BEQ readMatchlenLoop - -readMatchlenDone: - ADD $const_minMatch, len - - // Bounds check dst+len. - ADDS dst, len, tmp2 - BCS shortDst - CMP dstend, tmp2 - BHI shortDst - - SUB offset, dst, match - CMP dstorig, match - BHS copyMatchTry8 - - // match < dstorig means the match starts in the dictionary, - // at len(dict) - offset + (dst - dstorig). - SUB dstorig, dst, tmp1 - SUB offset, dictlen, tmp2 - ADDS tmp2, tmp1 - BMI shortDict - ADD dict, tmp1, match - -copyDict: - MOVBU.P 1(match), tmp3 - MOVB.P tmp3, 1(dst) - SUBS $1, len - CCMP NE, dictend, match, $0b0100 // 0100 sets the Z (EQ) flag. - BNE copyDict - - CBZ len, copyMatchDone - - // If the match extends beyond the dictionary, the rest is at dstorig. - MOVD dstorig, match - - // The code up to copyMatchLoop1 assumes len >= minMatch. - CMP $const_minMatch, len - BLO copyMatchLoop1 - -copyMatchTry8: - // Copy doublewords if both len and offset are at least eight. - // A 16-at-a-time loop doesn't provide a further speedup. - CMP $8, len - CCMP HS, offset, $8, $0 - BLO copyMatchLoop1 - - AND $7, len, lenRem - SUB $8, len -copyMatchLoop8: - SUBS $8, len - MOVD.P 8(match), tmp1 - MOVD.P tmp1, 8(dst) - BPL copyMatchLoop8 - - ADD lenRem, match - ADD lenRem, dst - MOVD -8(match), tmp2 - MOVD tmp2, -8(dst) - B copyMatchDone - - // 4× unrolled byte copy loop for the overlapping case. -copyMatchLoop4: - SUB $4, len - MOVBU.P 4(match), tmp1 - MOVB.P tmp1, 4(dst) - MOVBU -3(match), tmp2 - MOVB tmp2, -3(dst) - MOVBU -2(match), tmp3 - MOVB tmp3, -2(dst) - MOVBU -1(match), tmp4 - MOVB tmp4, -1(dst) - CBNZ len, copyMatchLoop4 - -copyMatchLoop1: - // Finish with a byte-at-a-time copy. - SUB $1, len - MOVBU.P 1(match), tmp2 - MOVB.P tmp2, 1(dst) - CBNZ len, copyMatchLoop1 - -copyMatchDone: - CMP src, srcend - BNE loop - -end: - SUB dstorig, dst, tmp1 - MOVD tmp1, ret+72(FP) - RET - - // The error cases have distinct labels so we can put different - // return codes here when debugging, or if the error returns need to - // be changed. -shortDict: -shortDst: -shortSrc: -corrupt: - MOVD $-1, tmp1 - MOVD tmp1, ret+72(FP) - RET diff --git a/vendor/github.com/pierrec/lz4/v4/internal/lz4block/decode_asm.go b/vendor/github.com/pierrec/lz4/v4/internal/lz4block/decode_asm.go deleted file mode 100644 index 56a7c9e705..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/internal/lz4block/decode_asm.go +++ /dev/null @@ -1,9 +0,0 @@ -// +build amd64 arm arm64 -// +build !appengine -// +build gc -// +build !noasm - -package lz4block - -//go:noescape -func decodeBlock(dst, src, dict []byte) int diff --git a/vendor/github.com/pierrec/lz4/v4/internal/lz4block/decode_other.go b/vendor/github.com/pierrec/lz4/v4/internal/lz4block/decode_other.go deleted file mode 100644 index 35420300ca..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/internal/lz4block/decode_other.go +++ /dev/null @@ -1,139 +0,0 @@ -//go:build (!amd64 && !arm && !arm64) || appengine || !gc || noasm -// +build !amd64,!arm,!arm64 appengine !gc noasm - -package lz4block - -import ( - "encoding/binary" -) - -func decodeBlock(dst, src, dict []byte) (ret int) { - // Restrict capacities so we don't read or write out of bounds. - dst = dst[:len(dst):len(dst)] - src = src[:len(src):len(src)] - - const hasError = -2 - - if len(src) == 0 { - return hasError - } - - defer func() { - if recover() != nil { - ret = hasError - } - }() - - var si, di uint - for si < uint(len(src)) { - // Literals and match lengths (token). - b := uint(src[si]) - si++ - - // Literals. - if lLen := b >> 4; lLen > 0 { - switch { - case lLen < 0xF && si+16 < uint(len(src)): - // Shortcut 1 - // if we have enough room in src and dst, and the literals length - // is small enough (0..14) then copy all 16 bytes, even if not all - // are part of the literals. - copy(dst[di:], src[si:si+16]) - si += lLen - di += lLen - if mLen := b & 0xF; mLen < 0xF { - // Shortcut 2 - // if the match length (4..18) fits within the literals, then copy - // all 18 bytes, even if not all are part of the literals. - mLen += 4 - if offset := u16(src[si:]); mLen <= offset && offset < di { - i := di - offset - end := i + 18 - if end > uint(len(dst)) { - // The remaining buffer may not hold 18 bytes. - // See https://github.com/pierrec/lz4/issues/51. - end = uint(len(dst)) - } - copy(dst[di:], dst[i:end]) - si += 2 - di += mLen - continue - } - } - case lLen == 0xF: - for { - x := uint(src[si]) - if lLen += x; int(lLen) < 0 { - return hasError - } - si++ - if x != 0xFF { - break - } - } - fallthrough - default: - copy(dst[di:di+lLen], src[si:si+lLen]) - si += lLen - di += lLen - } - } - if si == uint(len(src)) { - break - } else if si > uint(len(src)) { - return hasError - } - - offset := u16(src[si:]) - if offset == 0 { - return hasError - } - si += 2 - - // Match. - mLen := minMatch + b&0xF - if mLen == minMatch+0xF { - for { - x := uint(src[si]) - if mLen += x; int(mLen) < 0 { - return hasError - } - si++ - if x != 0xFF { - break - } - } - } - - // Copy the match. - if di < offset { - // The match is beyond our block, meaning the first part - // is in the dictionary. - fromDict := dict[uint(len(dict))+di-offset:] - n := uint(copy(dst[di:di+mLen], fromDict)) - di += n - if mLen -= n; mLen == 0 { - continue - } - // We copied n = offset-di bytes from the dictionary, - // then set di = di+n = offset, so the following code - // copies from dst[di-offset:] = dst[0:]. - } - - expanded := dst[di-offset:] - if mLen > offset { - // Efficiently copy the match dst[di-offset:di] into the dst slice. - bytesToCopy := offset * (mLen / offset) - for n := offset; n <= bytesToCopy+offset; n *= 2 { - copy(expanded[n:], expanded[:n]) - } - di += bytesToCopy - mLen -= bytesToCopy - } - di += uint(copy(dst[di:di+mLen], expanded[:mLen])) - } - - return int(di) -} - -func u16(p []byte) uint { return uint(binary.LittleEndian.Uint16(p)) } diff --git a/vendor/github.com/pierrec/lz4/v4/internal/lz4errors/errors.go b/vendor/github.com/pierrec/lz4/v4/internal/lz4errors/errors.go deleted file mode 100644 index 710ea42812..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/internal/lz4errors/errors.go +++ /dev/null @@ -1,19 +0,0 @@ -package lz4errors - -type Error string - -func (e Error) Error() string { return string(e) } - -const ( - ErrInvalidSourceShortBuffer Error = "lz4: invalid source or destination buffer too short" - ErrInvalidFrame Error = "lz4: bad magic number" - ErrInternalUnhandledState Error = "lz4: unhandled state" - ErrInvalidHeaderChecksum Error = "lz4: invalid header checksum" - ErrInvalidBlockChecksum Error = "lz4: invalid block checksum" - ErrInvalidFrameChecksum Error = "lz4: invalid frame checksum" - ErrOptionInvalidCompressionLevel Error = "lz4: invalid compression level" - ErrOptionClosedOrError Error = "lz4: cannot apply options on closed or in error object" - ErrOptionInvalidBlockSize Error = "lz4: invalid block size" - ErrOptionNotApplicable Error = "lz4: option not applicable" - ErrWriterNotClosed Error = "lz4: writer not closed" -) diff --git a/vendor/github.com/pierrec/lz4/v4/internal/lz4stream/block.go b/vendor/github.com/pierrec/lz4/v4/internal/lz4stream/block.go deleted file mode 100644 index e96465460c..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/internal/lz4stream/block.go +++ /dev/null @@ -1,348 +0,0 @@ -package lz4stream - -import ( - "encoding/binary" - "fmt" - "io" - "sync" - - "github.com/pierrec/lz4/v4/internal/lz4block" - "github.com/pierrec/lz4/v4/internal/lz4errors" - "github.com/pierrec/lz4/v4/internal/xxh32" -) - -type Blocks struct { - Block *FrameDataBlock - Blocks chan chan *FrameDataBlock - mu sync.Mutex - err error -} - -func (b *Blocks) initW(f *Frame, dst io.Writer, num int) { - if num == 1 { - b.Blocks = nil - b.Block = NewFrameDataBlock(f) - return - } - b.Block = nil - if cap(b.Blocks) != num { - b.Blocks = make(chan chan *FrameDataBlock, num) - } - // goroutine managing concurrent block compression goroutines. - go func() { - // Process next block compression item. - for c := range b.Blocks { - // Read the next compressed block result. - // Waiting here ensures that the blocks are output in the order they were sent. - // The incoming channel is always closed as it indicates to the caller that - // the block has been processed. - block := <-c - if block == nil { - // Notify the block compression routine that we are done with its result. - // This is used when a sentinel block is sent to terminate the compression. - close(c) - return - } - // Do not attempt to write the block upon any previous failure. - if b.err == nil { - // Write the block. - if err := block.Write(f, dst); err != nil { - // Keep the first error. - b.err = err - // All pending compression goroutines need to shut down, so we need to keep going. - } - } - close(c) - } - }() -} - -func (b *Blocks) close(f *Frame, num int) error { - if num == 1 { - if b.Block != nil { - b.Block.Close(f) - } - err := b.err - b.err = nil - return err - } - if b.Blocks == nil { - err := b.err - b.err = nil - return err - } - c := make(chan *FrameDataBlock) - b.Blocks <- c - c <- nil - <-c - err := b.err - b.err = nil - return err -} - -// ErrorR returns any error set while uncompressing a stream. -func (b *Blocks) ErrorR() error { - b.mu.Lock() - defer b.mu.Unlock() - return b.err -} - -// initR returns a channel that streams the uncompressed blocks if in concurrent -// mode and no error. When the channel is closed, check for any error with b.ErrorR. -// -// If not in concurrent mode, the uncompressed block is b.Block and the returned error -// needs to be checked. -func (b *Blocks) initR(f *Frame, num int, src io.Reader) (chan []byte, error) { - size := f.Descriptor.Flags.BlockSizeIndex() - if num == 1 { - b.Blocks = nil - b.Block = NewFrameDataBlock(f) - return nil, nil - } - b.Block = nil - blocks := make(chan chan []byte, num) - // data receives the uncompressed blocks. - data := make(chan []byte) - // Read blocks from the source sequentially - // and uncompress them concurrently. - - // In legacy mode, accrue the uncompress sizes in cum. - var cum uint32 - go func() { - var cumx uint32 - var err error - for b.ErrorR() == nil { - block := NewFrameDataBlock(f) - cumx, err = block.Read(f, src, 0) - if err != nil { - block.Close(f) - break - } - // Recheck for an error as reading may be slow and uncompressing is expensive. - if b.ErrorR() != nil { - block.Close(f) - break - } - c := make(chan []byte) - blocks <- c - go func() { - defer block.Close(f) - data, err := block.Uncompress(f, size.Get(), nil, false) - if err != nil { - b.closeR(err) - // Close the block channel to indicate an error. - close(c) - } else { - c <- data - } - }() - } - // End the collection loop and the data channel. - c := make(chan []byte) - blocks <- c - c <- nil // signal the collection loop that we are done - <-c // wait for the collect loop to complete - if f.isLegacy() && cum == cumx { - err = io.EOF - } - b.closeR(err) - close(data) - }() - // Collect the uncompressed blocks and make them available - // on the returned channel. - go func(leg bool) { - defer close(blocks) - skipBlocks := false - for c := range blocks { - buf, ok := <-c - if !ok { - // A closed channel indicates an error. - // All remaining channels should be discarded. - skipBlocks = true - continue - } - if buf == nil { - // Signal to end the loop. - close(c) - return - } - if skipBlocks { - // A previous error has occurred, skipping remaining channels. - continue - } - // Perform checksum now as the blocks are received in order. - if f.Descriptor.Flags.ContentChecksum() { - _, _ = f.checksum.Write(buf) - } - if leg { - cum += uint32(len(buf)) - } - data <- buf - close(c) - } - }(f.isLegacy()) - return data, nil -} - -// closeR safely sets the error on b if not already set. -func (b *Blocks) closeR(err error) { - b.mu.Lock() - if b.err == nil { - b.err = err - } - b.mu.Unlock() -} - -func NewFrameDataBlock(f *Frame) *FrameDataBlock { - buf := f.Descriptor.Flags.BlockSizeIndex().Get() - return &FrameDataBlock{Data: buf, data: buf} -} - -type FrameDataBlock struct { - Size DataBlockSize - Data []byte // compressed or uncompressed data (.data or .src) - Checksum uint32 - data []byte // buffer for compressed data - src []byte // uncompressed data - err error // used in concurrent mode -} - -func (b *FrameDataBlock) Close(f *Frame) { - b.Size = 0 - b.Checksum = 0 - b.err = nil - if b.data != nil { - // Block was not already closed. - lz4block.Put(b.data) - b.Data = nil - b.data = nil - b.src = nil - } -} - -// Block compression errors are ignored since the buffer is sized appropriately. -func (b *FrameDataBlock) Compress(f *Frame, src []byte, level lz4block.CompressionLevel) *FrameDataBlock { - data := b.data - if f.isLegacy() { - data = data[:cap(data)] - } else { - data = data[:len(src)] // trigger the incompressible flag in CompressBlock - } - var n int - switch level { - case lz4block.Fast: - n, _ = lz4block.CompressBlock(src, data) - default: - n, _ = lz4block.CompressBlockHC(src, data, level) - } - if n == 0 { - b.Size.UncompressedSet(true) - b.Data = src - } else { - b.Size.UncompressedSet(false) - b.Data = data[:n] - } - b.Size.sizeSet(len(b.Data)) - b.src = src // keep track of the source for content checksum - - if f.Descriptor.Flags.BlockChecksum() { - b.Checksum = xxh32.ChecksumZero(src) - } - return b -} - -func (b *FrameDataBlock) Write(f *Frame, dst io.Writer) error { - // Write is called in the same order as blocks are compressed, - // so content checksum must be done here. - if f.Descriptor.Flags.ContentChecksum() { - _, _ = f.checksum.Write(b.src) - } - buf := f.buf[:] - binary.LittleEndian.PutUint32(buf, uint32(b.Size)) - if _, err := dst.Write(buf[:4]); err != nil { - return err - } - - if _, err := dst.Write(b.Data); err != nil { - return err - } - - if b.Checksum == 0 { - return nil - } - binary.LittleEndian.PutUint32(buf, b.Checksum) - _, err := dst.Write(buf[:4]) - return err -} - -// Read updates b with the next block data, size and checksum if available. -func (b *FrameDataBlock) Read(f *Frame, src io.Reader, cum uint32) (uint32, error) { - x, err := f.readUint32(src) - if err != nil { - return 0, err - } - if f.isLegacy() { - switch x { - case frameMagicLegacy: - // Concatenated legacy frame. - return b.Read(f, src, cum) - case cum: - // Only works in non concurrent mode, for concurrent mode - // it is handled separately. - // Linux kernel format appends the total uncompressed size at the end. - return 0, io.EOF - } - } else if x == 0 { - // Marker for end of stream. - return 0, io.EOF - } - b.Size = DataBlockSize(x) - - size := b.Size.size() - if size > cap(b.data) { - return x, lz4errors.ErrOptionInvalidBlockSize - } - b.data = b.data[:size] - if _, err := io.ReadFull(src, b.data); err != nil { - return x, err - } - if f.Descriptor.Flags.BlockChecksum() { - sum, err := f.readUint32(src) - if err != nil { - return 0, err - } - b.Checksum = sum - } - return x, nil -} - -func (b *FrameDataBlock) Uncompress(f *Frame, dst, dict []byte, sum bool) ([]byte, error) { - if b.Size.Uncompressed() { - n := copy(dst, b.data) - dst = dst[:n] - } else { - n, err := lz4block.UncompressBlock(b.data, dst, dict) - if err != nil { - return nil, err - } - dst = dst[:n] - } - if f.Descriptor.Flags.BlockChecksum() { - if c := xxh32.ChecksumZero(dst); c != b.Checksum { - err := fmt.Errorf("%w: got %x; expected %x", lz4errors.ErrInvalidBlockChecksum, c, b.Checksum) - return nil, err - } - } - if sum && f.Descriptor.Flags.ContentChecksum() { - _, _ = f.checksum.Write(dst) - } - return dst, nil -} - -func (f *Frame) readUint32(r io.Reader) (x uint32, err error) { - if _, err = io.ReadFull(r, f.buf[:4]); err != nil { - return - } - x = binary.LittleEndian.Uint32(f.buf[:4]) - return -} diff --git a/vendor/github.com/pierrec/lz4/v4/internal/lz4stream/frame.go b/vendor/github.com/pierrec/lz4/v4/internal/lz4stream/frame.go deleted file mode 100644 index 18192a9433..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/internal/lz4stream/frame.go +++ /dev/null @@ -1,204 +0,0 @@ -// Package lz4stream provides the types that support reading and writing LZ4 data streams. -package lz4stream - -import ( - "encoding/binary" - "fmt" - "io" - "io/ioutil" - - "github.com/pierrec/lz4/v4/internal/lz4block" - "github.com/pierrec/lz4/v4/internal/lz4errors" - "github.com/pierrec/lz4/v4/internal/xxh32" -) - -//go:generate go run gen.go - -const ( - frameMagic uint32 = 0x184D2204 - frameSkipMagic uint32 = 0x184D2A50 - frameMagicLegacy uint32 = 0x184C2102 -) - -func NewFrame() *Frame { - return &Frame{} -} - -type Frame struct { - buf [15]byte // frame descriptor needs at most 4(magic)+4+8+1=11 bytes - Magic uint32 - Descriptor FrameDescriptor - Blocks Blocks - Checksum uint32 - checksum xxh32.XXHZero -} - -// Reset allows reusing the Frame. -// The Descriptor configuration is not modified. -func (f *Frame) Reset(num int) { - f.Magic = 0 - f.Descriptor.Checksum = 0 - f.Descriptor.ContentSize = 0 - _ = f.Blocks.close(f, num) - f.Checksum = 0 -} - -func (f *Frame) InitW(dst io.Writer, num int, legacy bool) { - if legacy { - f.Magic = frameMagicLegacy - idx := lz4block.Index(lz4block.Block8Mb) - f.Descriptor.Flags.BlockSizeIndexSet(idx) - } else { - f.Magic = frameMagic - f.Descriptor.initW() - } - f.Blocks.initW(f, dst, num) - f.checksum.Reset() -} - -func (f *Frame) CloseW(dst io.Writer, num int) error { - if err := f.Blocks.close(f, num); err != nil { - return err - } - if f.isLegacy() { - return nil - } - buf := f.buf[:0] - // End mark (data block size of uint32(0)). - buf = append(buf, 0, 0, 0, 0) - if f.Descriptor.Flags.ContentChecksum() { - buf = f.checksum.Sum(buf) - } - _, err := dst.Write(buf) - return err -} - -func (f *Frame) isLegacy() bool { - return f.Magic == frameMagicLegacy -} - -func (f *Frame) ParseHeaders(src io.Reader) error { - if f.Magic > 0 { - // Header already read. - return nil - } - -newFrame: - var err error - if f.Magic, err = f.readUint32(src); err != nil { - return err - } - switch m := f.Magic; { - case m == frameMagic || m == frameMagicLegacy: - // All 16 values of frameSkipMagic are valid. - case m>>8 == frameSkipMagic>>8: - skip, err := f.readUint32(src) - if err != nil { - return err - } - if _, err := io.CopyN(ioutil.Discard, src, int64(skip)); err != nil { - return err - } - goto newFrame - default: - return lz4errors.ErrInvalidFrame - } - if err := f.Descriptor.initR(f, src); err != nil { - return err - } - f.checksum.Reset() - return nil -} - -func (f *Frame) InitR(src io.Reader, num int) (chan []byte, error) { - return f.Blocks.initR(f, num, src) -} - -func (f *Frame) CloseR(src io.Reader) (err error) { - if f.isLegacy() { - return nil - } - if !f.Descriptor.Flags.ContentChecksum() { - return nil - } - if f.Checksum, err = f.readUint32(src); err != nil { - return err - } - if c := f.checksum.Sum32(); c != f.Checksum { - return fmt.Errorf("%w: got %x; expected %x", lz4errors.ErrInvalidFrameChecksum, c, f.Checksum) - } - return nil -} - -type FrameDescriptor struct { - Flags DescriptorFlags - ContentSize uint64 - Checksum uint8 -} - -func (fd *FrameDescriptor) initW() { - fd.Flags.VersionSet(1) - fd.Flags.BlockIndependenceSet(true) -} - -func (fd *FrameDescriptor) Write(f *Frame, dst io.Writer) error { - if fd.Checksum > 0 { - // Header already written. - return nil - } - - buf := f.buf[:4] - // Write the magic number here even though it belongs to the Frame. - binary.LittleEndian.PutUint32(buf, f.Magic) - if !f.isLegacy() { - buf = buf[:4+2] - binary.LittleEndian.PutUint16(buf[4:], uint16(fd.Flags)) - - if fd.Flags.Size() { - buf = buf[:4+2+8] - binary.LittleEndian.PutUint64(buf[4+2:], fd.ContentSize) - } - fd.Checksum = descriptorChecksum(buf[4:]) - buf = append(buf, fd.Checksum) - } - - _, err := dst.Write(buf) - return err -} - -func (fd *FrameDescriptor) initR(f *Frame, src io.Reader) error { - if f.isLegacy() { - idx := lz4block.Index(lz4block.Block8Mb) - f.Descriptor.Flags.BlockSizeIndexSet(idx) - return nil - } - // Read the flags and the checksum, hoping that there is not content size. - buf := f.buf[:3] - if _, err := io.ReadFull(src, buf); err != nil { - return err - } - descr := binary.LittleEndian.Uint16(buf) - fd.Flags = DescriptorFlags(descr) - if fd.Flags.Size() { - // Append the 8 missing bytes. - buf = buf[:3+8] - if _, err := io.ReadFull(src, buf[3:]); err != nil { - return err - } - fd.ContentSize = binary.LittleEndian.Uint64(buf[2:]) - } - fd.Checksum = buf[len(buf)-1] // the checksum is the last byte - buf = buf[:len(buf)-1] // all descriptor fields except checksum - if c := descriptorChecksum(buf); fd.Checksum != c { - return fmt.Errorf("%w: got %x; expected %x", lz4errors.ErrInvalidHeaderChecksum, c, fd.Checksum) - } - // Validate the elements that can be. - if idx := fd.Flags.BlockSizeIndex(); !idx.IsValid() { - return lz4errors.ErrOptionInvalidBlockSize - } - return nil -} - -func descriptorChecksum(buf []byte) byte { - return byte(xxh32.ChecksumZero(buf) >> 8) -} diff --git a/vendor/github.com/pierrec/lz4/v4/internal/lz4stream/frame_gen.go b/vendor/github.com/pierrec/lz4/v4/internal/lz4stream/frame_gen.go deleted file mode 100644 index d33a6be95c..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/internal/lz4stream/frame_gen.go +++ /dev/null @@ -1,103 +0,0 @@ -// Code generated by `gen.exe`. DO NOT EDIT. - -package lz4stream - -import "github.com/pierrec/lz4/v4/internal/lz4block" - -// DescriptorFlags is defined as follow: -// field bits -// ----- ---- -// _ 2 -// ContentChecksum 1 -// Size 1 -// BlockChecksum 1 -// BlockIndependence 1 -// Version 2 -// _ 4 -// BlockSizeIndex 3 -// _ 1 -type DescriptorFlags uint16 - -// Getters. -func (x DescriptorFlags) ContentChecksum() bool { return x>>2&1 != 0 } -func (x DescriptorFlags) Size() bool { return x>>3&1 != 0 } -func (x DescriptorFlags) BlockChecksum() bool { return x>>4&1 != 0 } -func (x DescriptorFlags) BlockIndependence() bool { return x>>5&1 != 0 } -func (x DescriptorFlags) Version() uint16 { return uint16(x >> 6 & 0x3) } -func (x DescriptorFlags) BlockSizeIndex() lz4block.BlockSizeIndex { - return lz4block.BlockSizeIndex(x >> 12 & 0x7) -} - -// Setters. -func (x *DescriptorFlags) ContentChecksumSet(v bool) *DescriptorFlags { - const b = 1 << 2 - if v { - *x = *x&^b | b - } else { - *x &^= b - } - return x -} -func (x *DescriptorFlags) SizeSet(v bool) *DescriptorFlags { - const b = 1 << 3 - if v { - *x = *x&^b | b - } else { - *x &^= b - } - return x -} -func (x *DescriptorFlags) BlockChecksumSet(v bool) *DescriptorFlags { - const b = 1 << 4 - if v { - *x = *x&^b | b - } else { - *x &^= b - } - return x -} -func (x *DescriptorFlags) BlockIndependenceSet(v bool) *DescriptorFlags { - const b = 1 << 5 - if v { - *x = *x&^b | b - } else { - *x &^= b - } - return x -} -func (x *DescriptorFlags) VersionSet(v uint16) *DescriptorFlags { - *x = *x&^(0x3<<6) | (DescriptorFlags(v) & 0x3 << 6) - return x -} -func (x *DescriptorFlags) BlockSizeIndexSet(v lz4block.BlockSizeIndex) *DescriptorFlags { - *x = *x&^(0x7<<12) | (DescriptorFlags(v) & 0x7 << 12) - return x -} - -// Code generated by `gen.exe`. DO NOT EDIT. - -// DataBlockSize is defined as follow: -// field bits -// ----- ---- -// size 31 -// Uncompressed 1 -type DataBlockSize uint32 - -// Getters. -func (x DataBlockSize) size() int { return int(x & 0x7FFFFFFF) } -func (x DataBlockSize) Uncompressed() bool { return x>>31&1 != 0 } - -// Setters. -func (x *DataBlockSize) sizeSet(v int) *DataBlockSize { - *x = *x&^0x7FFFFFFF | DataBlockSize(v)&0x7FFFFFFF - return x -} -func (x *DataBlockSize) UncompressedSet(v bool) *DataBlockSize { - const b = 1 << 31 - if v { - *x = *x&^b | b - } else { - *x &^= b - } - return x -} diff --git a/vendor/github.com/pierrec/lz4/v4/internal/xxh32/xxh32zero.go b/vendor/github.com/pierrec/lz4/v4/internal/xxh32/xxh32zero.go deleted file mode 100644 index 8d3206a87c..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/internal/xxh32/xxh32zero.go +++ /dev/null @@ -1,212 +0,0 @@ -// Package xxh32 implements the very fast XXH hashing algorithm (32 bits version). -// (https://github.com/Cyan4973/XXH/) -package xxh32 - -import ( - "encoding/binary" -) - -const ( - prime1 uint32 = 2654435761 - prime2 uint32 = 2246822519 - prime3 uint32 = 3266489917 - prime4 uint32 = 668265263 - prime5 uint32 = 374761393 - - primeMask = 0xFFFFFFFF - prime1plus2 = uint32((uint64(prime1) + uint64(prime2)) & primeMask) // 606290984 - prime1minus = uint32((-int64(prime1)) & primeMask) // 1640531535 -) - -// XXHZero represents an xxhash32 object with seed 0. -type XXHZero struct { - v [4]uint32 - totalLen uint64 - buf [16]byte - bufused int -} - -// Sum appends the current hash to b and returns the resulting slice. -// It does not change the underlying hash state. -func (xxh XXHZero) Sum(b []byte) []byte { - h32 := xxh.Sum32() - return append(b, byte(h32), byte(h32>>8), byte(h32>>16), byte(h32>>24)) -} - -// Reset resets the Hash to its initial state. -func (xxh *XXHZero) Reset() { - xxh.v[0] = prime1plus2 - xxh.v[1] = prime2 - xxh.v[2] = 0 - xxh.v[3] = prime1minus - xxh.totalLen = 0 - xxh.bufused = 0 -} - -// Size returns the number of bytes returned by Sum(). -func (xxh *XXHZero) Size() int { - return 4 -} - -// BlockSizeIndex gives the minimum number of bytes accepted by Write(). -func (xxh *XXHZero) BlockSize() int { - return 1 -} - -// Write adds input bytes to the Hash. -// It never returns an error. -func (xxh *XXHZero) Write(input []byte) (int, error) { - if xxh.totalLen == 0 { - xxh.Reset() - } - n := len(input) - m := xxh.bufused - - xxh.totalLen += uint64(n) - - r := len(xxh.buf) - m - if n < r { - copy(xxh.buf[m:], input) - xxh.bufused += len(input) - return n, nil - } - - var buf *[16]byte - if m != 0 { - // some data left from previous update - buf = &xxh.buf - c := copy(buf[m:], input) - n -= c - input = input[c:] - } - update(&xxh.v, buf, input) - xxh.bufused = copy(xxh.buf[:], input[n-n%16:]) - - return n, nil -} - -// Portable version of update. This updates v by processing all of buf -// (if not nil) and all full 16-byte blocks of input. -func updateGo(v *[4]uint32, buf *[16]byte, input []byte) { - // Causes compiler to work directly from registers instead of stack: - v1, v2, v3, v4 := v[0], v[1], v[2], v[3] - - if buf != nil { - v1 = rol13(v1+binary.LittleEndian.Uint32(buf[:])*prime2) * prime1 - v2 = rol13(v2+binary.LittleEndian.Uint32(buf[4:])*prime2) * prime1 - v3 = rol13(v3+binary.LittleEndian.Uint32(buf[8:])*prime2) * prime1 - v4 = rol13(v4+binary.LittleEndian.Uint32(buf[12:])*prime2) * prime1 - } - - for ; len(input) >= 16; input = input[16:] { - sub := input[:16] //BCE hint for compiler - v1 = rol13(v1+binary.LittleEndian.Uint32(sub[:])*prime2) * prime1 - v2 = rol13(v2+binary.LittleEndian.Uint32(sub[4:])*prime2) * prime1 - v3 = rol13(v3+binary.LittleEndian.Uint32(sub[8:])*prime2) * prime1 - v4 = rol13(v4+binary.LittleEndian.Uint32(sub[12:])*prime2) * prime1 - } - v[0], v[1], v[2], v[3] = v1, v2, v3, v4 -} - -// Sum32 returns the 32 bits Hash value. -func (xxh *XXHZero) Sum32() uint32 { - h32 := uint32(xxh.totalLen) - if h32 >= 16 { - h32 += rol1(xxh.v[0]) + rol7(xxh.v[1]) + rol12(xxh.v[2]) + rol18(xxh.v[3]) - } else { - h32 += prime5 - } - - p := 0 - n := xxh.bufused - buf := xxh.buf - for n := n - 4; p <= n; p += 4 { - h32 += binary.LittleEndian.Uint32(buf[p:p+4]) * prime3 - h32 = rol17(h32) * prime4 - } - for ; p < n; p++ { - h32 += uint32(buf[p]) * prime5 - h32 = rol11(h32) * prime1 - } - - h32 ^= h32 >> 15 - h32 *= prime2 - h32 ^= h32 >> 13 - h32 *= prime3 - h32 ^= h32 >> 16 - - return h32 -} - -// Portable version of ChecksumZero. -func checksumZeroGo(input []byte) uint32 { - n := len(input) - h32 := uint32(n) - - if n < 16 { - h32 += prime5 - } else { - v1 := prime1plus2 - v2 := prime2 - v3 := uint32(0) - v4 := prime1minus - p := 0 - for n := n - 16; p <= n; p += 16 { - sub := input[p:][:16] //BCE hint for compiler - v1 = rol13(v1+binary.LittleEndian.Uint32(sub[:])*prime2) * prime1 - v2 = rol13(v2+binary.LittleEndian.Uint32(sub[4:])*prime2) * prime1 - v3 = rol13(v3+binary.LittleEndian.Uint32(sub[8:])*prime2) * prime1 - v4 = rol13(v4+binary.LittleEndian.Uint32(sub[12:])*prime2) * prime1 - } - input = input[p:] - n -= p - h32 += rol1(v1) + rol7(v2) + rol12(v3) + rol18(v4) - } - - p := 0 - for n := n - 4; p <= n; p += 4 { - h32 += binary.LittleEndian.Uint32(input[p:p+4]) * prime3 - h32 = rol17(h32) * prime4 - } - for p < n { - h32 += uint32(input[p]) * prime5 - h32 = rol11(h32) * prime1 - p++ - } - - h32 ^= h32 >> 15 - h32 *= prime2 - h32 ^= h32 >> 13 - h32 *= prime3 - h32 ^= h32 >> 16 - - return h32 -} - -func rol1(u uint32) uint32 { - return u<<1 | u>>31 -} - -func rol7(u uint32) uint32 { - return u<<7 | u>>25 -} - -func rol11(u uint32) uint32 { - return u<<11 | u>>21 -} - -func rol12(u uint32) uint32 { - return u<<12 | u>>20 -} - -func rol13(u uint32) uint32 { - return u<<13 | u>>19 -} - -func rol17(u uint32) uint32 { - return u<<17 | u>>15 -} - -func rol18(u uint32) uint32 { - return u<<18 | u>>14 -} diff --git a/vendor/github.com/pierrec/lz4/v4/internal/xxh32/xxh32zero_arm.go b/vendor/github.com/pierrec/lz4/v4/internal/xxh32/xxh32zero_arm.go deleted file mode 100644 index 0978b2665b..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/internal/xxh32/xxh32zero_arm.go +++ /dev/null @@ -1,11 +0,0 @@ -// +build !noasm - -package xxh32 - -// ChecksumZero returns the 32-bit hash of input. -// -//go:noescape -func ChecksumZero(input []byte) uint32 - -//go:noescape -func update(v *[4]uint32, buf *[16]byte, input []byte) diff --git a/vendor/github.com/pierrec/lz4/v4/internal/xxh32/xxh32zero_arm.s b/vendor/github.com/pierrec/lz4/v4/internal/xxh32/xxh32zero_arm.s deleted file mode 100644 index c18ffd5743..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/internal/xxh32/xxh32zero_arm.s +++ /dev/null @@ -1,251 +0,0 @@ -// +build !noasm - -#include "go_asm.h" -#include "textflag.h" - -// Register allocation. -#define p R0 -#define n R1 -#define h R2 -#define v1 R2 // Alias for h. -#define v2 R3 -#define v3 R4 -#define v4 R5 -#define x1 R6 -#define x2 R7 -#define x3 R8 -#define x4 R9 - -// We need the primes in registers. The 16-byte loop only uses prime{1,2}. -#define prime1r R11 -#define prime2r R12 -#define prime3r R3 // The rest can alias v{2-4}. -#define prime4r R4 -#define prime5r R5 - -// Update round macros. These read from and increment p. - -#define round16aligned \ - MOVM.IA.W (p), [x1, x2, x3, x4] \ - \ - MULA x1, prime2r, v1, v1 \ - MULA x2, prime2r, v2, v2 \ - MULA x3, prime2r, v3, v3 \ - MULA x4, prime2r, v4, v4 \ - \ - MOVW v1 @> 19, v1 \ - MOVW v2 @> 19, v2 \ - MOVW v3 @> 19, v3 \ - MOVW v4 @> 19, v4 \ - \ - MUL prime1r, v1 \ - MUL prime1r, v2 \ - MUL prime1r, v3 \ - MUL prime1r, v4 \ - -#define round16unaligned \ - MOVBU.P 16(p), x1 \ - MOVBU -15(p), x2 \ - ORR x2 << 8, x1 \ - MOVBU -14(p), x3 \ - MOVBU -13(p), x4 \ - ORR x4 << 8, x3 \ - ORR x3 << 16, x1 \ - \ - MULA x1, prime2r, v1, v1 \ - MOVW v1 @> 19, v1 \ - MUL prime1r, v1 \ - \ - MOVBU -12(p), x1 \ - MOVBU -11(p), x2 \ - ORR x2 << 8, x1 \ - MOVBU -10(p), x3 \ - MOVBU -9(p), x4 \ - ORR x4 << 8, x3 \ - ORR x3 << 16, x1 \ - \ - MULA x1, prime2r, v2, v2 \ - MOVW v2 @> 19, v2 \ - MUL prime1r, v2 \ - \ - MOVBU -8(p), x1 \ - MOVBU -7(p), x2 \ - ORR x2 << 8, x1 \ - MOVBU -6(p), x3 \ - MOVBU -5(p), x4 \ - ORR x4 << 8, x3 \ - ORR x3 << 16, x1 \ - \ - MULA x1, prime2r, v3, v3 \ - MOVW v3 @> 19, v3 \ - MUL prime1r, v3 \ - \ - MOVBU -4(p), x1 \ - MOVBU -3(p), x2 \ - ORR x2 << 8, x1 \ - MOVBU -2(p), x3 \ - MOVBU -1(p), x4 \ - ORR x4 << 8, x3 \ - ORR x3 << 16, x1 \ - \ - MULA x1, prime2r, v4, v4 \ - MOVW v4 @> 19, v4 \ - MUL prime1r, v4 \ - - -// func ChecksumZero([]byte) uint32 -TEXT ·ChecksumZero(SB), NOFRAME|NOSPLIT, $-4-16 - MOVW input_base+0(FP), p - MOVW input_len+4(FP), n - - MOVW $const_prime1, prime1r - MOVW $const_prime2, prime2r - - // Set up h for n < 16. It's tempting to say {ADD prime5, n, h} - // here, but that's a pseudo-op that generates a load through R11. - MOVW $const_prime5, prime5r - ADD prime5r, n, h - CMP $0, n - BEQ end - - // We let n go negative so we can do comparisons with SUB.S - // instead of separate CMP. - SUB.S $16, n - BMI loop16done - - ADD prime1r, prime2r, v1 - MOVW prime2r, v2 - MOVW $0, v3 - RSB $0, prime1r, v4 - - TST $3, p - BNE loop16unaligned - -loop16aligned: - SUB.S $16, n - round16aligned - BPL loop16aligned - B loop16finish - -loop16unaligned: - SUB.S $16, n - round16unaligned - BPL loop16unaligned - -loop16finish: - MOVW v1 @> 31, h - ADD v2 @> 25, h - ADD v3 @> 20, h - ADD v4 @> 14, h - - // h += len(input) with v2 as temporary. - MOVW input_len+4(FP), v2 - ADD v2, h - -loop16done: - ADD $16, n // Restore number of bytes left. - - SUB.S $4, n - MOVW $const_prime3, prime3r - BMI loop4done - MOVW $const_prime4, prime4r - - TST $3, p - BNE loop4unaligned - -loop4aligned: - SUB.S $4, n - - MOVW.P 4(p), x1 - MULA prime3r, x1, h, h - MOVW h @> 15, h - MUL prime4r, h - - BPL loop4aligned - B loop4done - -loop4unaligned: - SUB.S $4, n - - MOVBU.P 4(p), x1 - MOVBU -3(p), x2 - ORR x2 << 8, x1 - MOVBU -2(p), x3 - ORR x3 << 16, x1 - MOVBU -1(p), x4 - ORR x4 << 24, x1 - - MULA prime3r, x1, h, h - MOVW h @> 15, h - MUL prime4r, h - - BPL loop4unaligned - -loop4done: - ADD.S $4, n // Restore number of bytes left. - BEQ end - - MOVW $const_prime5, prime5r - -loop1: - SUB.S $1, n - - MOVBU.P 1(p), x1 - MULA prime5r, x1, h, h - MOVW h @> 21, h - MUL prime1r, h - - BNE loop1 - -end: - MOVW $const_prime3, prime3r - EOR h >> 15, h - MUL prime2r, h - EOR h >> 13, h - MUL prime3r, h - EOR h >> 16, h - - MOVW h, ret+12(FP) - RET - - -// func update(v *[4]uint64, buf *[16]byte, p []byte) -TEXT ·update(SB), NOFRAME|NOSPLIT, $-4-20 - MOVW v+0(FP), p - MOVM.IA (p), [v1, v2, v3, v4] - - MOVW $const_prime1, prime1r - MOVW $const_prime2, prime2r - - // Process buf, if not nil. - MOVW buf+4(FP), p - CMP $0, p - BEQ noBuffered - - round16aligned - -noBuffered: - MOVW input_base +8(FP), p - MOVW input_len +12(FP), n - - SUB.S $16, n - BMI end - - TST $3, p - BNE loop16unaligned - -loop16aligned: - SUB.S $16, n - round16aligned - BPL loop16aligned - B end - -loop16unaligned: - SUB.S $16, n - round16unaligned - BPL loop16unaligned - -end: - MOVW v+0(FP), p - MOVM.IA [v1, v2, v3, v4], (p) - RET diff --git a/vendor/github.com/pierrec/lz4/v4/internal/xxh32/xxh32zero_other.go b/vendor/github.com/pierrec/lz4/v4/internal/xxh32/xxh32zero_other.go deleted file mode 100644 index c96b59b8c3..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/internal/xxh32/xxh32zero_other.go +++ /dev/null @@ -1,10 +0,0 @@ -// +build !arm noasm - -package xxh32 - -// ChecksumZero returns the 32-bit hash of input. -func ChecksumZero(input []byte) uint32 { return checksumZeroGo(input) } - -func update(v *[4]uint32, buf *[16]byte, input []byte) { - updateGo(v, buf, input) -} diff --git a/vendor/github.com/pierrec/lz4/v4/lz4.go b/vendor/github.com/pierrec/lz4/v4/lz4.go deleted file mode 100644 index a62022e088..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/lz4.go +++ /dev/null @@ -1,157 +0,0 @@ -// Package lz4 implements reading and writing lz4 compressed data. -// -// The package supports both the LZ4 stream format, -// as specified in http://fastcompression.blogspot.fr/2013/04/lz4-streaming-format-final.html, -// and the LZ4 block format, defined at -// http://fastcompression.blogspot.fr/2011/05/lz4-explained.html. -// -// See https://github.com/lz4/lz4 for the reference C implementation. -package lz4 - -import ( - "github.com/pierrec/lz4/v4/internal/lz4block" - "github.com/pierrec/lz4/v4/internal/lz4errors" -) - -func _() { - // Safety checks for duplicated elements. - var x [1]struct{} - _ = x[lz4block.CompressionLevel(Fast)-lz4block.Fast] - _ = x[Block64Kb-BlockSize(lz4block.Block64Kb)] - _ = x[Block256Kb-BlockSize(lz4block.Block256Kb)] - _ = x[Block1Mb-BlockSize(lz4block.Block1Mb)] - _ = x[Block4Mb-BlockSize(lz4block.Block4Mb)] -} - -// CompressBlockBound returns the maximum size of a given buffer of size n, when not compressible. -func CompressBlockBound(n int) int { - return lz4block.CompressBlockBound(n) -} - -// UncompressBlock uncompresses the source buffer into the destination one, -// and returns the uncompressed size. -// -// The destination buffer must be sized appropriately. -// -// An error is returned if the source data is invalid or the destination buffer is too small. -func UncompressBlock(src, dst []byte) (int, error) { - return lz4block.UncompressBlock(src, dst, nil) -} - -// UncompressBlockWithDict uncompresses the source buffer into the destination one using a -// dictionary, and returns the uncompressed size. -// -// The destination buffer must be sized appropriately. -// -// An error is returned if the source data is invalid or the destination buffer is too small. -func UncompressBlockWithDict(src, dst, dict []byte) (int, error) { - return lz4block.UncompressBlock(src, dst, dict) -} - -// A Compressor compresses data into the LZ4 block format. -// It uses a fast compression algorithm. -// -// A Compressor is not safe for concurrent use by multiple goroutines. -// -// Use a Writer to compress into the LZ4 stream format. -type Compressor struct{ c lz4block.Compressor } - -// CompressBlock compresses the source buffer src into the destination dst. -// -// If compression is successful, the first return value is the size of the -// compressed data, which is always >0. -// -// If dst has length at least CompressBlockBound(len(src)), compression always -// succeeds. Otherwise, the first return value is zero. The error return is -// non-nil if the compressed data does not fit in dst, but it might fit in a -// larger buffer that is still smaller than CompressBlockBound(len(src)). The -// return value (0, nil) means the data is likely incompressible and a buffer -// of length CompressBlockBound(len(src)) should be passed in. -func (c *Compressor) CompressBlock(src, dst []byte) (int, error) { - return c.c.CompressBlock(src, dst) -} - -// CompressBlock compresses the source buffer into the destination one. -// This is the fast version of LZ4 compression and also the default one. -// -// The argument hashTable is scratch space for a hash table used by the -// compressor. If provided, it should have length at least 1<<16. If it is -// shorter (or nil), CompressBlock allocates its own hash table. -// -// The size of the compressed data is returned. -// -// If the destination buffer size is lower than CompressBlockBound and -// the compressed size is 0 and no error, then the data is incompressible. -// -// An error is returned if the destination buffer is too small. - -// CompressBlock is equivalent to Compressor.CompressBlock. -// The final argument is ignored and should be set to nil. -// -// This function is deprecated. Use a Compressor instead. -func CompressBlock(src, dst []byte, _ []int) (int, error) { - return lz4block.CompressBlock(src, dst) -} - -// A CompressorHC compresses data into the LZ4 block format. -// Its compression ratio is potentially better than that of a Compressor, -// but it is also slower and requires more memory. -// -// A Compressor is not safe for concurrent use by multiple goroutines. -// -// Use a Writer to compress into the LZ4 stream format. -type CompressorHC struct { - // Level is the maximum search depth for compression. - // Values <= 0 mean no maximum. - Level CompressionLevel - c lz4block.CompressorHC -} - -// CompressBlock compresses the source buffer src into the destination dst. -// -// If compression is successful, the first return value is the size of the -// compressed data, which is always >0. -// -// If dst has length at least CompressBlockBound(len(src)), compression always -// succeeds. Otherwise, the first return value is zero. The error return is -// non-nil if the compressed data does not fit in dst, but it might fit in a -// larger buffer that is still smaller than CompressBlockBound(len(src)). The -// return value (0, nil) means the data is likely incompressible and a buffer -// of length CompressBlockBound(len(src)) should be passed in. -func (c *CompressorHC) CompressBlock(src, dst []byte) (int, error) { - return c.c.CompressBlock(src, dst, lz4block.CompressionLevel(c.Level)) -} - -// CompressBlockHC is equivalent to CompressorHC.CompressBlock. -// The final two arguments are ignored and should be set to nil. -// -// This function is deprecated. Use a CompressorHC instead. -func CompressBlockHC(src, dst []byte, depth CompressionLevel, _, _ []int) (int, error) { - return lz4block.CompressBlockHC(src, dst, lz4block.CompressionLevel(depth)) -} - -const ( - // ErrInvalidSourceShortBuffer is returned by UncompressBlock or CompressBLock when a compressed - // block is corrupted or the destination buffer is not large enough for the uncompressed data. - ErrInvalidSourceShortBuffer = lz4errors.ErrInvalidSourceShortBuffer - // ErrInvalidFrame is returned when reading an invalid LZ4 archive. - ErrInvalidFrame = lz4errors.ErrInvalidFrame - // ErrInternalUnhandledState is an internal error. - ErrInternalUnhandledState = lz4errors.ErrInternalUnhandledState - // ErrInvalidHeaderChecksum is returned when reading a frame. - ErrInvalidHeaderChecksum = lz4errors.ErrInvalidHeaderChecksum - // ErrInvalidBlockChecksum is returned when reading a frame. - ErrInvalidBlockChecksum = lz4errors.ErrInvalidBlockChecksum - // ErrInvalidFrameChecksum is returned when reading a frame. - ErrInvalidFrameChecksum = lz4errors.ErrInvalidFrameChecksum - // ErrOptionInvalidCompressionLevel is returned when the supplied compression level is invalid. - ErrOptionInvalidCompressionLevel = lz4errors.ErrOptionInvalidCompressionLevel - // ErrOptionClosedOrError is returned when an option is applied to a closed or in error object. - ErrOptionClosedOrError = lz4errors.ErrOptionClosedOrError - // ErrOptionInvalidBlockSize is returned when - ErrOptionInvalidBlockSize = lz4errors.ErrOptionInvalidBlockSize - // ErrOptionNotApplicable is returned when trying to apply an option to an object not supporting it. - ErrOptionNotApplicable = lz4errors.ErrOptionNotApplicable - // ErrWriterNotClosed is returned when attempting to reset an unclosed writer. - ErrWriterNotClosed = lz4errors.ErrWriterNotClosed -) diff --git a/vendor/github.com/pierrec/lz4/v4/options.go b/vendor/github.com/pierrec/lz4/v4/options.go deleted file mode 100644 index 46a8738031..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/options.go +++ /dev/null @@ -1,214 +0,0 @@ -package lz4 - -import ( - "fmt" - "reflect" - "runtime" - - "github.com/pierrec/lz4/v4/internal/lz4block" - "github.com/pierrec/lz4/v4/internal/lz4errors" -) - -//go:generate go run golang.org/x/tools/cmd/stringer -type=BlockSize,CompressionLevel -output options_gen.go - -type ( - applier interface { - Apply(...Option) error - private() - } - // Option defines the parameters to setup an LZ4 Writer or Reader. - Option func(applier) error -) - -// String returns a string representation of the option with its parameter(s). -func (o Option) String() string { - return o(nil).Error() -} - -// Default options. -var ( - DefaultBlockSizeOption = BlockSizeOption(Block4Mb) - DefaultChecksumOption = ChecksumOption(true) - DefaultConcurrency = ConcurrencyOption(1) - defaultOnBlockDone = OnBlockDoneOption(nil) -) - -const ( - Block64Kb BlockSize = 1 << (16 + iota*2) - Block256Kb - Block1Mb - Block4Mb -) - -// BlockSizeIndex defines the size of the blocks to be compressed. -type BlockSize uint32 - -// BlockSizeOption defines the maximum size of compressed blocks (default=Block4Mb). -func BlockSizeOption(size BlockSize) Option { - return func(a applier) error { - switch w := a.(type) { - case nil: - s := fmt.Sprintf("BlockSizeOption(%s)", size) - return lz4errors.Error(s) - case *Writer: - size := uint32(size) - if !lz4block.IsValid(size) { - return fmt.Errorf("%w: %d", lz4errors.ErrOptionInvalidBlockSize, size) - } - w.frame.Descriptor.Flags.BlockSizeIndexSet(lz4block.Index(size)) - return nil - } - return lz4errors.ErrOptionNotApplicable - } -} - -// BlockChecksumOption enables or disables block checksum (default=false). -func BlockChecksumOption(flag bool) Option { - return func(a applier) error { - switch w := a.(type) { - case nil: - s := fmt.Sprintf("BlockChecksumOption(%v)", flag) - return lz4errors.Error(s) - case *Writer: - w.frame.Descriptor.Flags.BlockChecksumSet(flag) - return nil - } - return lz4errors.ErrOptionNotApplicable - } -} - -// ChecksumOption enables/disables all blocks or content checksum (default=true). -func ChecksumOption(flag bool) Option { - return func(a applier) error { - switch w := a.(type) { - case nil: - s := fmt.Sprintf("ChecksumOption(%v)", flag) - return lz4errors.Error(s) - case *Writer: - w.frame.Descriptor.Flags.ContentChecksumSet(flag) - return nil - } - return lz4errors.ErrOptionNotApplicable - } -} - -// SizeOption sets the size of the original uncompressed data (default=0). It is useful to know the size of the -// whole uncompressed data stream. -func SizeOption(size uint64) Option { - return func(a applier) error { - switch w := a.(type) { - case nil: - s := fmt.Sprintf("SizeOption(%d)", size) - return lz4errors.Error(s) - case *Writer: - w.frame.Descriptor.Flags.SizeSet(size > 0) - w.frame.Descriptor.ContentSize = size - return nil - } - return lz4errors.ErrOptionNotApplicable - } -} - -// ConcurrencyOption sets the number of go routines used for compression. -// If n <= 0, then the output of runtime.GOMAXPROCS(0) is used. -func ConcurrencyOption(n int) Option { - if n <= 0 { - n = runtime.GOMAXPROCS(0) - } - return func(a applier) error { - switch rw := a.(type) { - case nil: - s := fmt.Sprintf("ConcurrencyOption(%d)", n) - return lz4errors.Error(s) - case *Writer: - rw.num = n - return nil - case *Reader: - rw.num = n - return nil - } - return lz4errors.ErrOptionNotApplicable - } -} - -// CompressionLevel defines the level of compression to use. The higher the better, but slower, compression. -type CompressionLevel uint32 - -const ( - Fast CompressionLevel = 0 - Level1 CompressionLevel = 1 << (8 + iota) - Level2 - Level3 - Level4 - Level5 - Level6 - Level7 - Level8 - Level9 -) - -// CompressionLevelOption defines the compression level (default=Fast). -func CompressionLevelOption(level CompressionLevel) Option { - return func(a applier) error { - switch w := a.(type) { - case nil: - s := fmt.Sprintf("CompressionLevelOption(%s)", level) - return lz4errors.Error(s) - case *Writer: - switch level { - case Fast, Level1, Level2, Level3, Level4, Level5, Level6, Level7, Level8, Level9: - default: - return fmt.Errorf("%w: %d", lz4errors.ErrOptionInvalidCompressionLevel, level) - } - w.level = lz4block.CompressionLevel(level) - return nil - } - return lz4errors.ErrOptionNotApplicable - } -} - -func onBlockDone(int) {} - -// OnBlockDoneOption is triggered when a block has been processed. For a Writer, it is when is has been compressed, -// for a Reader, it is when it has been uncompressed. -func OnBlockDoneOption(handler func(size int)) Option { - if handler == nil { - handler = onBlockDone - } - return func(a applier) error { - switch rw := a.(type) { - case nil: - s := fmt.Sprintf("OnBlockDoneOption(%s)", reflect.TypeOf(handler).String()) - return lz4errors.Error(s) - case *Writer: - rw.handler = handler - return nil - case *Reader: - rw.handler = handler - return nil - } - return lz4errors.ErrOptionNotApplicable - } -} - -// LegacyOption provides support for writing LZ4 frames in the legacy format. -// -// See https://github.com/lz4/lz4/blob/dev/doc/lz4_Frame_format.md#legacy-frame. -// -// NB. compressed Linux kernel images use a tweaked LZ4 legacy format where -// the compressed stream is followed by the original (uncompressed) size of -// the kernel (https://events.static.linuxfound.org/sites/events/files/lcjpcojp13_klee.pdf). -// This is also supported as a special case. -func LegacyOption(legacy bool) Option { - return func(a applier) error { - switch rw := a.(type) { - case nil: - s := fmt.Sprintf("LegacyOption(%v)", legacy) - return lz4errors.Error(s) - case *Writer: - rw.legacy = legacy - return nil - } - return lz4errors.ErrOptionNotApplicable - } -} diff --git a/vendor/github.com/pierrec/lz4/v4/options_gen.go b/vendor/github.com/pierrec/lz4/v4/options_gen.go deleted file mode 100644 index 2de814909e..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/options_gen.go +++ /dev/null @@ -1,92 +0,0 @@ -// Code generated by "stringer -type=BlockSize,CompressionLevel -output options_gen.go"; DO NOT EDIT. - -package lz4 - -import "strconv" - -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[Block64Kb-65536] - _ = x[Block256Kb-262144] - _ = x[Block1Mb-1048576] - _ = x[Block4Mb-4194304] -} - -const ( - _BlockSize_name_0 = "Block64Kb" - _BlockSize_name_1 = "Block256Kb" - _BlockSize_name_2 = "Block1Mb" - _BlockSize_name_3 = "Block4Mb" -) - -func (i BlockSize) String() string { - switch { - case i == 65536: - return _BlockSize_name_0 - case i == 262144: - return _BlockSize_name_1 - case i == 1048576: - return _BlockSize_name_2 - case i == 4194304: - return _BlockSize_name_3 - default: - return "BlockSize(" + strconv.FormatInt(int64(i), 10) + ")" - } -} -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[Fast-0] - _ = x[Level1-512] - _ = x[Level2-1024] - _ = x[Level3-2048] - _ = x[Level4-4096] - _ = x[Level5-8192] - _ = x[Level6-16384] - _ = x[Level7-32768] - _ = x[Level8-65536] - _ = x[Level9-131072] -} - -const ( - _CompressionLevel_name_0 = "Fast" - _CompressionLevel_name_1 = "Level1" - _CompressionLevel_name_2 = "Level2" - _CompressionLevel_name_3 = "Level3" - _CompressionLevel_name_4 = "Level4" - _CompressionLevel_name_5 = "Level5" - _CompressionLevel_name_6 = "Level6" - _CompressionLevel_name_7 = "Level7" - _CompressionLevel_name_8 = "Level8" - _CompressionLevel_name_9 = "Level9" -) - -func (i CompressionLevel) String() string { - switch { - case i == 0: - return _CompressionLevel_name_0 - case i == 512: - return _CompressionLevel_name_1 - case i == 1024: - return _CompressionLevel_name_2 - case i == 2048: - return _CompressionLevel_name_3 - case i == 4096: - return _CompressionLevel_name_4 - case i == 8192: - return _CompressionLevel_name_5 - case i == 16384: - return _CompressionLevel_name_6 - case i == 32768: - return _CompressionLevel_name_7 - case i == 65536: - return _CompressionLevel_name_8 - case i == 131072: - return _CompressionLevel_name_9 - default: - return "CompressionLevel(" + strconv.FormatInt(int64(i), 10) + ")" - } -} diff --git a/vendor/github.com/pierrec/lz4/v4/reader.go b/vendor/github.com/pierrec/lz4/v4/reader.go deleted file mode 100644 index d084e264dd..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/reader.go +++ /dev/null @@ -1,277 +0,0 @@ -package lz4 - -import ( - "bytes" - "io" - - "github.com/pierrec/lz4/v4/internal/lz4block" - "github.com/pierrec/lz4/v4/internal/lz4errors" - "github.com/pierrec/lz4/v4/internal/lz4stream" -) - -var readerStates = []aState{ - noState: newState, - errorState: newState, - newState: readState, - readState: closedState, - closedState: newState, -} - -// NewReader returns a new LZ4 frame decoder. -func NewReader(r io.Reader) *Reader { - return newReader(r, false) -} - -func newReader(r io.Reader, legacy bool) *Reader { - zr := &Reader{frame: lz4stream.NewFrame()} - zr.state.init(readerStates) - _ = zr.Apply(DefaultConcurrency, defaultOnBlockDone) - zr.Reset(r) - return zr -} - -// Reader allows reading an LZ4 stream. -type Reader struct { - state _State - src io.Reader // source reader - num int // concurrency level - frame *lz4stream.Frame // frame being read - data []byte // block buffer allocated in non concurrent mode - reads chan []byte // pending data - idx int // size of pending data - handler func(int) - cum uint32 - dict []byte -} - -func (*Reader) private() {} - -func (r *Reader) Apply(options ...Option) (err error) { - defer r.state.check(&err) - switch r.state.state { - case newState: - case errorState: - return r.state.err - default: - return lz4errors.ErrOptionClosedOrError - } - for _, o := range options { - if err = o(r); err != nil { - return - } - } - return -} - -// Size returns the size of the underlying uncompressed data, if set in the stream. -func (r *Reader) Size() int { - switch r.state.state { - case readState, closedState: - if r.frame.Descriptor.Flags.Size() { - return int(r.frame.Descriptor.ContentSize) - } - } - return 0 -} - -func (r *Reader) isNotConcurrent() bool { - return r.num == 1 -} - -func (r *Reader) init() error { - err := r.frame.ParseHeaders(r.src) - if err != nil { - return err - } - if !r.frame.Descriptor.Flags.BlockIndependence() { - // We can't decompress dependent blocks concurrently. - // Instead of throwing an error to the user, silently drop concurrency - r.num = 1 - } - data, err := r.frame.InitR(r.src, r.num) - if err != nil { - return err - } - r.reads = data - r.idx = 0 - size := r.frame.Descriptor.Flags.BlockSizeIndex() - r.data = size.Get() - r.cum = 0 - return nil -} - -func (r *Reader) Read(buf []byte) (n int, err error) { - defer r.state.check(&err) - switch r.state.state { - case readState: - case closedState, errorState: - return 0, r.state.err - case newState: - // First initialization. - if err = r.init(); r.state.next(err) { - return - } - default: - return 0, r.state.fail() - } - for len(buf) > 0 { - var bn int - if r.idx == 0 { - if r.isNotConcurrent() { - bn, err = r.read(buf) - } else { - lz4block.Put(r.data) - r.data = <-r.reads - if len(r.data) == 0 { - // No uncompressed data: something went wrong or we are done. - err = r.frame.Blocks.ErrorR() - } - } - switch err { - case nil: - case io.EOF: - if er := r.frame.CloseR(r.src); er != nil { - err = er - } - lz4block.Put(r.data) - r.data = nil - return - default: - return - } - } - if bn == 0 { - // Fill buf with buffered data. - bn = copy(buf, r.data[r.idx:]) - r.idx += bn - if r.idx == len(r.data) { - // All data read, get ready for the next Read. - r.idx = 0 - } - } - buf = buf[bn:] - n += bn - r.handler(bn) - } - return -} - -// read uncompresses the next block as follow: -// - if buf has enough room, the block is uncompressed into it directly -// and the lenght of used space is returned -// - else, the uncompress data is stored in r.data and 0 is returned -func (r *Reader) read(buf []byte) (int, error) { - block := r.frame.Blocks.Block - _, err := block.Read(r.frame, r.src, r.cum) - if err != nil { - return 0, err - } - var direct bool - dst := r.data[:cap(r.data)] - if len(buf) >= len(dst) { - // Uncompress directly into buf. - direct = true - dst = buf - } - dst, err = block.Uncompress(r.frame, dst, r.dict, true) - if err != nil { - return 0, err - } - if !r.frame.Descriptor.Flags.BlockIndependence() { - if len(r.dict)+len(dst) > 128*1024 { - preserveSize := 64*1024 - len(dst) - if preserveSize < 0 { - preserveSize = 0 - } - r.dict = r.dict[len(r.dict)-preserveSize:] - } - r.dict = append(r.dict, dst...) - } - r.cum += uint32(len(dst)) - if direct { - return len(dst), nil - } - r.data = dst - return 0, nil -} - -// Reset clears the state of the Reader r such that it is equivalent to its -// initial state from NewReader, but instead writing to writer. -// No access to reader is performed. -// -// w.Close must be called before Reset. -func (r *Reader) Reset(reader io.Reader) { - if r.data != nil { - lz4block.Put(r.data) - r.data = nil - } - r.frame.Reset(r.num) - r.state.reset() - r.src = reader - r.reads = nil -} - -// WriteTo efficiently uncompresses the data from the Reader underlying source to w. -func (r *Reader) WriteTo(w io.Writer) (n int64, err error) { - switch r.state.state { - case closedState, errorState: - return 0, r.state.err - case newState: - if err = r.init(); r.state.next(err) { - return - } - default: - return 0, r.state.fail() - } - defer r.state.nextd(&err) - - var data []byte - if r.isNotConcurrent() { - size := r.frame.Descriptor.Flags.BlockSizeIndex() - data = size.Get() - defer lz4block.Put(data) - } - for { - var bn int - var dst []byte - if r.isNotConcurrent() { - bn, err = r.read(data) - dst = data[:bn] - } else { - lz4block.Put(dst) - dst = <-r.reads - bn = len(dst) - if bn == 0 { - // No uncompressed data: something went wrong or we are done. - err = r.frame.Blocks.ErrorR() - } - } - switch err { - case nil: - case io.EOF: - err = r.frame.CloseR(r.src) - return - default: - return - } - r.handler(bn) - bn, err = w.Write(dst) - n += int64(bn) - if err != nil { - return - } - } -} - -// ValidFrameHeader returns a bool indicating if the given bytes slice matches a LZ4 header. -func ValidFrameHeader(in []byte) (bool, error) { - f := lz4stream.NewFrame() - err := f.ParseHeaders(bytes.NewReader(in)) - if err == nil { - return true, nil - } - if err == lz4errors.ErrInvalidFrame { - return false, nil - } - return false, err -} diff --git a/vendor/github.com/pierrec/lz4/v4/state.go b/vendor/github.com/pierrec/lz4/v4/state.go deleted file mode 100644 index d94f04d05e..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/state.go +++ /dev/null @@ -1,75 +0,0 @@ -package lz4 - -import ( - "errors" - "fmt" - "io" - - "github.com/pierrec/lz4/v4/internal/lz4errors" -) - -//go:generate go run golang.org/x/tools/cmd/stringer -type=aState -output state_gen.go - -const ( - noState aState = iota // uninitialized reader - errorState // unrecoverable error encountered - newState // instantiated object - readState // reading data - writeState // writing data - closedState // all done -) - -type ( - aState uint8 - _State struct { - states []aState - state aState - err error - } -) - -func (s *_State) init(states []aState) { - s.states = states - s.state = states[0] -} - -func (s *_State) reset() { - s.state = s.states[0] - s.err = nil -} - -// next sets the state to the next one unless it is passed a non nil error. -// It returns whether or not it is in error. -func (s *_State) next(err error) bool { - if err != nil { - s.err = fmt.Errorf("%s: %w", s.state, err) - s.state = errorState - return true - } - s.state = s.states[s.state] - return false -} - -// nextd is like next but for defers. -func (s *_State) nextd(errp *error) bool { - return errp != nil && s.next(*errp) -} - -// check sets s in error if not already in error and if the error is not nil or io.EOF, -func (s *_State) check(errp *error) { - if s.state == errorState || errp == nil { - return - } - if err := *errp; err != nil { - s.err = fmt.Errorf("%w[%s]", err, s.state) - if !errors.Is(err, io.EOF) { - s.state = errorState - } - } -} - -func (s *_State) fail() error { - s.state = errorState - s.err = fmt.Errorf("%w[%s]", lz4errors.ErrInternalUnhandledState, s.state) - return s.err -} diff --git a/vendor/github.com/pierrec/lz4/v4/state_gen.go b/vendor/github.com/pierrec/lz4/v4/state_gen.go deleted file mode 100644 index 75fb828924..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/state_gen.go +++ /dev/null @@ -1,28 +0,0 @@ -// Code generated by "stringer -type=aState -output state_gen.go"; DO NOT EDIT. - -package lz4 - -import "strconv" - -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[noState-0] - _ = x[errorState-1] - _ = x[newState-2] - _ = x[readState-3] - _ = x[writeState-4] - _ = x[closedState-5] -} - -const _aState_name = "noStateerrorStatenewStatereadStatewriteStateclosedState" - -var _aState_index = [...]uint8{0, 7, 17, 25, 34, 44, 55} - -func (i aState) String() string { - if i >= aState(len(_aState_index)-1) { - return "aState(" + strconv.FormatInt(int64(i), 10) + ")" - } - return _aState_name[_aState_index[i]:_aState_index[i+1]] -} diff --git a/vendor/github.com/pierrec/lz4/v4/writer.go b/vendor/github.com/pierrec/lz4/v4/writer.go deleted file mode 100644 index 56bd37ba6c..0000000000 --- a/vendor/github.com/pierrec/lz4/v4/writer.go +++ /dev/null @@ -1,231 +0,0 @@ -package lz4 - -import ( - "io" - - "github.com/pierrec/lz4/v4/internal/lz4block" - "github.com/pierrec/lz4/v4/internal/lz4errors" - "github.com/pierrec/lz4/v4/internal/lz4stream" -) - -var writerStates = []aState{ - noState: newState, - newState: writeState, - writeState: closedState, - closedState: newState, - errorState: newState, -} - -// NewWriter returns a new LZ4 frame encoder. -func NewWriter(w io.Writer) *Writer { - zw := &Writer{frame: lz4stream.NewFrame()} - zw.state.init(writerStates) - _ = zw.Apply(DefaultBlockSizeOption, DefaultChecksumOption, DefaultConcurrency, defaultOnBlockDone) - zw.Reset(w) - return zw -} - -// Writer allows writing an LZ4 stream. -type Writer struct { - state _State - src io.Writer // destination writer - level lz4block.CompressionLevel // how hard to try - num int // concurrency level - frame *lz4stream.Frame // frame being built - data []byte // pending data - idx int // size of pending data - handler func(int) - legacy bool -} - -func (*Writer) private() {} - -func (w *Writer) Apply(options ...Option) (err error) { - defer w.state.check(&err) - switch w.state.state { - case newState: - case errorState: - return w.state.err - default: - return lz4errors.ErrOptionClosedOrError - } - w.Reset(w.src) - for _, o := range options { - if err = o(w); err != nil { - return - } - } - return -} - -func (w *Writer) isNotConcurrent() bool { - return w.num == 1 -} - -// init sets up the Writer when in newState. It does not change the Writer state. -func (w *Writer) init() error { - w.frame.InitW(w.src, w.num, w.legacy) - size := w.frame.Descriptor.Flags.BlockSizeIndex() - w.data = size.Get() - w.idx = 0 - return w.frame.Descriptor.Write(w.frame, w.src) -} - -func (w *Writer) Write(buf []byte) (n int, err error) { - defer w.state.check(&err) - switch w.state.state { - case writeState: - case closedState, errorState: - return 0, w.state.err - case newState: - if err = w.init(); w.state.next(err) { - return - } - default: - return 0, w.state.fail() - } - - zn := len(w.data) - for len(buf) > 0 { - if w.isNotConcurrent() && w.idx == 0 && len(buf) >= zn { - // Avoid a copy as there is enough data for a block. - if err = w.write(buf[:zn], false); err != nil { - return - } - n += zn - buf = buf[zn:] - continue - } - // Accumulate the data to be compressed. - m := copy(w.data[w.idx:], buf) - n += m - w.idx += m - buf = buf[m:] - - if w.idx < len(w.data) { - // Buffer not filled. - return - } - - // Buffer full. - if err = w.write(w.data, true); err != nil { - return - } - if !w.isNotConcurrent() { - size := w.frame.Descriptor.Flags.BlockSizeIndex() - w.data = size.Get() - } - w.idx = 0 - } - return -} - -func (w *Writer) write(data []byte, safe bool) error { - if w.isNotConcurrent() { - block := w.frame.Blocks.Block - err := block.Compress(w.frame, data, w.level).Write(w.frame, w.src) - w.handler(len(block.Data)) - return err - } - c := make(chan *lz4stream.FrameDataBlock) - w.frame.Blocks.Blocks <- c - go func(c chan *lz4stream.FrameDataBlock, data []byte, safe bool) { - b := lz4stream.NewFrameDataBlock(w.frame) - c <- b.Compress(w.frame, data, w.level) - <-c - w.handler(len(b.Data)) - b.Close(w.frame) - if safe { - // safe to put it back as the last usage of it was FrameDataBlock.Write() called before c is closed - lz4block.Put(data) - } - }(c, data, safe) - - return nil -} - -// Close closes the Writer, flushing any unwritten data to the underlying io.Writer, -// but does not close the underlying io.Writer. -func (w *Writer) Close() (err error) { - switch w.state.state { - case writeState: - case errorState: - return w.state.err - default: - return nil - } - defer w.state.nextd(&err) - if w.idx > 0 { - // Flush pending data, disable w.data freeing as it is done later on. - if err = w.write(w.data[:w.idx], false); err != nil { - return err - } - w.idx = 0 - } - err = w.frame.CloseW(w.src, w.num) - // It is now safe to free the buffer. - if w.data != nil { - lz4block.Put(w.data) - w.data = nil - } - return -} - -// Reset clears the state of the Writer w such that it is equivalent to its -// initial state from NewWriter, but instead writing to writer. -// Reset keeps the previous options unless overwritten by the supplied ones. -// No access to writer is performed. -// -// w.Close must be called before Reset or pending data may be dropped. -func (w *Writer) Reset(writer io.Writer) { - w.frame.Reset(w.num) - w.state.reset() - w.src = writer -} - -// ReadFrom efficiently reads from r and compressed into the Writer destination. -func (w *Writer) ReadFrom(r io.Reader) (n int64, err error) { - switch w.state.state { - case closedState, errorState: - return 0, w.state.err - case newState: - if err = w.init(); w.state.next(err) { - return - } - default: - return 0, w.state.fail() - } - defer w.state.check(&err) - - size := w.frame.Descriptor.Flags.BlockSizeIndex() - var done bool - var rn int - data := size.Get() - if w.isNotConcurrent() { - // Keep the same buffer for the whole process. - defer lz4block.Put(data) - } - for !done { - rn, err = io.ReadFull(r, data) - switch err { - case nil: - case io.EOF, io.ErrUnexpectedEOF: // read may be partial - done = true - default: - return - } - n += int64(rn) - err = w.write(data[:rn], true) - if err != nil { - return - } - w.handler(rn) - if !done && !w.isNotConcurrent() { - // The buffer will be returned automatically by go routines (safe=true) - // so get a new one fo the next round. - data = size.Get() - } - } - err = w.Close() - return -} diff --git a/vendor/github.com/u-root/uio/LICENSE b/vendor/github.com/u-root/uio/LICENSE deleted file mode 100644 index 652ff7e777..0000000000 --- a/vendor/github.com/u-root/uio/LICENSE +++ /dev/null @@ -1,29 +0,0 @@ -BSD 3-Clause License - -Copyright (c) 2012-2021, u-root Authors -All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - -* Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. - -* Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - -* Neither the name of the copyright holder nor the names of its - contributors may be used to endorse or promote products derived from - this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE -FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, -OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/u-root/uio/rand/random.go b/vendor/github.com/u-root/uio/rand/random.go deleted file mode 100644 index e189199b94..0000000000 --- a/vendor/github.com/u-root/uio/rand/random.go +++ /dev/null @@ -1,62 +0,0 @@ -// Copyright 2019 the u-root Authors. All rights reserved -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package rand implements cancelable reads from a cryptographically safe -// random number source. -package rand - -import ( - "context" -) - -// Reader is a cryptographically safe random number source. -var Reader = DefaultReaderWithContext(context.Background()) - -// Read blockingly reads from a random number source. -func Read(b []byte) (int, error) { - return Reader.Read(b) -} - -// ReadContext is a context-aware reader for random numbers. -func ReadContext(ctx context.Context, b []byte) (int, error) { - return Reader.ReadContext(ctx, b) -} - -// ContextReader is a cancelable io.Reader. -type ContextReader interface { - // Read behaves like a blocking io.Reader.Read. - // - // Read wraps ReadContext with a background context. - Read(b []byte) (n int, err error) - - // ReadContext is an io.Reader that blocks until data is available or - // until ctx is done. - ReadContext(ctx context.Context, b []byte) (n int, err error) -} - -// contextReader is a cancelable io.Reader. -type contextReader interface { - ReadContext(context.Context, []byte) (int, error) -} - -// ctxReader takes a contextReader and turns it into a ContextReader. -type ctxReader struct { - contextReader - ctx context.Context //nolint:containedctx -} - -func (cr ctxReader) Read(b []byte) (int, error) { - return cr.contextReader.ReadContext(cr.ctx, b) -} - -// DefaultReaderWithContext returns a context-aware io.Reader. -// -// Because this stores the context, only use this in situations where an -// io.Reader is unavoidable. -func DefaultReaderWithContext(ctx context.Context) ContextReader { - return ctxReader{ - ctx: ctx, - contextReader: defaultContextReader, - } -} diff --git a/vendor/github.com/u-root/uio/rand/random_linux.go b/vendor/github.com/u-root/uio/rand/random_linux.go deleted file mode 100644 index 42931cca0d..0000000000 --- a/vendor/github.com/u-root/uio/rand/random_linux.go +++ /dev/null @@ -1,77 +0,0 @@ -// Copyright 2019 the u-root Authors. All rights reserved -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package rand - -import ( - "context" - "log" - "os" - "sync" - "syscall" - "time" - - "golang.org/x/sys/unix" -) - -var defaultContextReader = &getrandomReader{} - -var backupReader = &urandomReader{} - -type getrandomReader struct { - once sync.Once - backup bool -} - -// ReadContext implements a cancelable read from /dev/urandom. -func (r *getrandomReader) ReadContext(ctx context.Context, b []byte) (int, error) { - r.once.Do(func() { - if os.Getenv("UROOT_NOHWRNG") != "" { - r.backup = true - return - } - if _, err := unix.Getrandom(b, unix.GRND_NONBLOCK); err == syscall.ENOSYS { - r.backup = true - } - }) - if r.backup { - return backupReader.ReadContext(ctx, b) - } - - for { - // getrandom(2) with GRND_NONBLOCK uses the urandom number - // source, but only returns numbers if the crng has been - // initialized. - // - // This is preferrable to /dev/urandom, as /dev/urandom will - // make up fake random numbers until the crng has been - // initialized. - n, err := unix.Getrandom(b, unix.GRND_NONBLOCK) - if err == nil { - return n, nil - } - select { - case <-ctx.Done(): - return 0, ctx.Err() - - default: - if err != syscall.EAGAIN && err != syscall.EINTR { - return n, err - } - } - } -} - -// ReadContextWithSlowLogs logs a helpful message if it takes a significant -// amount of time (>2s) to produce random data. -func (r *getrandomReader) ReadContextWithSlowLogs(ctx context.Context, b []byte) (int, error) { - d := 2 * time.Second - t := time.AfterFunc(d, func() { - log.Printf("getrandom is taking a long time (>%v). "+ - "If running on hardware, consider enabling Linux's CONFIG_RANDOM_TRUST_CPU=y. "+ - "If running in a VM/emulator, try setting up virtio-rng.", d) - }) - defer t.Stop() - return r.ReadContext(ctx, b) -} diff --git a/vendor/github.com/u-root/uio/rand/random_std.go b/vendor/github.com/u-root/uio/rand/random_std.go deleted file mode 100644 index 47b2e74e1b..0000000000 --- a/vendor/github.com/u-root/uio/rand/random_std.go +++ /dev/null @@ -1,32 +0,0 @@ -// Copyright 2020 the u-root Authors. All rights reserved -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build plan9 || windows -// +build plan9 windows - -package rand - -import ( - "context" - "crypto/rand" -) - -var defaultContextReader = &cryptoRandReader{} - -type cryptoRandReader struct{} - -// ReadContext implements a cancelable read. -func (r *cryptoRandReader) ReadContext(ctx context.Context, b []byte) (n int, err error) { - ch := make(chan struct{}) - go func() { - n, err = rand.Reader.Read(b) - close(ch) - }() - select { - case <-ctx.Done(): - return 0, ctx.Err() - case <-ch: - return n, err - } -} diff --git a/vendor/github.com/u-root/uio/rand/random_unix.go b/vendor/github.com/u-root/uio/rand/random_unix.go deleted file mode 100644 index 57d2e2f272..0000000000 --- a/vendor/github.com/u-root/uio/rand/random_unix.go +++ /dev/null @@ -1,10 +0,0 @@ -// Copyright 2019 the u-root Authors. All rights reserved -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || nacl || netbsd || openbsd || solaris -// +build aix darwin dragonfly freebsd nacl netbsd openbsd solaris - -package rand - -var defaultContextReader = &urandomReader{} diff --git a/vendor/github.com/u-root/uio/rand/random_urandom.go b/vendor/github.com/u-root/uio/rand/random_urandom.go deleted file mode 100644 index cd6e2639b6..0000000000 --- a/vendor/github.com/u-root/uio/rand/random_urandom.go +++ /dev/null @@ -1,60 +0,0 @@ -// Copyright 2019 the u-root Authors. All rights reserved -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || nacl || netbsd || openbsd || solaris || linux -// +build aix darwin dragonfly freebsd nacl netbsd openbsd solaris linux - -package rand - -import ( - "context" - "fmt" - "sync" - "syscall" - - "golang.org/x/sys/unix" -) - -// urandomReader is a contextReader. -type urandomReader struct { - once sync.Once - - // fd is expected to be non-blocking. - fd int -} - -func (r *urandomReader) init() error { - var realErr error - r.once.Do(func() { - fd, err := unix.Open("/dev/urandom", unix.O_RDONLY, 0) - if err != nil { - realErr = fmt.Errorf("open(/dev/urandom): %v", err) - return - } - r.fd = fd - }) - return realErr -} - -// ReadContext implements a cancelable read from /dev/urandom. -func (r *urandomReader) ReadContext(ctx context.Context, b []byte) (int, error) { - if err := r.init(); err != nil { - return 0, err - } - for { - n, err := unix.Read(r.fd, b) - if err == nil { - return n, nil - } - select { - case <-ctx.Done(): - return 0, ctx.Err() - - default: - if err != syscall.EAGAIN && err != syscall.EINTR { - return n, err - } - } - } -} diff --git a/vendor/github.com/u-root/uio/uio/alignreader.go b/vendor/github.com/u-root/uio/uio/alignreader.go deleted file mode 100644 index 6800644148..0000000000 --- a/vendor/github.com/u-root/uio/uio/alignreader.go +++ /dev/null @@ -1,41 +0,0 @@ -// Copyright 2019 the u-root Authors. All rights reserved -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package uio - -import ( - "io" -) - -// AlignReader keeps track of how many bytes were read so the reader can be -// aligned at a future time. -type AlignReader struct { - R io.Reader - N int -} - -// Read reads from the underlying io.Reader. -func (r *AlignReader) Read(b []byte) (int, error) { - n, err := r.R.Read(b) - r.N += n - return n, err -} - -// ReadByte reads one byte from the underlying io.Reader. -func (r *AlignReader) ReadByte() (byte, error) { - b := make([]byte, 1) - _, err := io.ReadFull(r, b) - return b[0], err -} - -// Align aligns the reader to the given number of bytes and returns the -// bytes read to pad it. -func (r *AlignReader) Align(n int) ([]byte, error) { - if r.N%n == 0 { - return []byte{}, nil - } - pad := make([]byte, n-r.N%n) - m, err := io.ReadFull(r, pad) - return pad[:m], err -} diff --git a/vendor/github.com/u-root/uio/uio/alignwriter.go b/vendor/github.com/u-root/uio/uio/alignwriter.go deleted file mode 100644 index 95a52f61fa..0000000000 --- a/vendor/github.com/u-root/uio/uio/alignwriter.go +++ /dev/null @@ -1,34 +0,0 @@ -// Copyright 2019 the u-root Authors. All rights reserved -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package uio - -import ( - "bytes" - "io" -) - -// AlignWriter keeps track of how many bytes were written so the writer can be -// aligned at a future time. -type AlignWriter struct { - W io.Writer - N int -} - -// Write writes to the underlying io.Writew. -func (w *AlignWriter) Write(b []byte) (int, error) { - n, err := w.W.Write(b) - w.N += n - return n, err -} - -// Align aligns the writer to the given number of bytes using the given pad -// value. -func (w *AlignWriter) Align(n int, pad byte) error { - if w.N%n == 0 { - return nil - } - _, err := w.Write(bytes.Repeat([]byte{pad}, n-w.N%n)) - return err -} diff --git a/vendor/github.com/u-root/uio/uio/archivereader.go b/vendor/github.com/u-root/uio/uio/archivereader.go deleted file mode 100644 index 6d0eeefcfc..0000000000 --- a/vendor/github.com/u-root/uio/uio/archivereader.go +++ /dev/null @@ -1,89 +0,0 @@ -// Copyright 2021 the u-root Authors. All rights reserved -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package uio - -import ( - "bytes" - "errors" - "io" - - "github.com/pierrec/lz4/v4" -) - -const ( - // preReadSizeBytes is the num of bytes pre-read from a io.Reader that will - // be used to match against archive header. - defaultArchivePreReadSizeBytes = 1024 -) - -// ErrPreReadError indicates there was not enough underlying data to decompress. -var ErrPreReadError = errors.New("pre-read nothing") - -// ArchiveReader reads from a io.Reader, decompresses source bytes -// when applicable. -// -// It allows probing for multiple archive format, while still able -// to read from beginning, by pre-reading a small number of bytes. -// -// Always use newArchiveReader to initialize. -type ArchiveReader struct { - // src is where we read source bytes. - src io.Reader - - // buf stores pre-read bytes from original io.Reader. Archive format - // detection will be done against it. - buf []byte - - // preReadSizeBytes is how many bytes we pre-read for magic number - // matching for each archive type. This should be greater than or - // equal to the largest header frame size of each supported archive - // format. - preReadSizeBytes int -} - -// NewArchiveReader is a decompression reader. -func NewArchiveReader(r io.Reader) (ArchiveReader, error) { - ar := ArchiveReader{ - src: r, - // Randomly chosen, should be enough for most types: - // - // e.g. gzip with 10 byte header, lz4 with a header size - // between 7 and 19 bytes. - preReadSizeBytes: defaultArchivePreReadSizeBytes, - } - pbuf := make([]byte, ar.preReadSizeBytes) - - nr, err := io.ReadFull(r, pbuf) - // In case the image is smaller pre-read block size, 1kb for now. - // Ever possible ? probably not in case a compression is needed! - ar.buf = pbuf[:nr] - if err == io.EOF { - // If we could not pre-read anything, we can't determine if - // it is a compressed file. - ar.src = io.MultiReader(bytes.NewReader(pbuf[:nr]), r) - return ar, ErrPreReadError - } - - // Try each supported compression type, return upon first match. - - // Try lz4. - // magic number error will be thrown if source is not a lz4 archive. - // e.g. "lz4: bad magic number". - if ok, err := lz4.ValidFrameHeader(ar.buf); err == nil && ok { - ar.src = lz4.NewReader(io.MultiReader(bytes.NewReader(ar.buf), r)) - return ar, nil - } - - // Try other archive types here, gzip, xz, etc when needed. - - // Last resort, read as is. - ar.src = io.MultiReader(bytes.NewReader(ar.buf), r) - return ar, nil -} - -// Read reads from the archive uncompressed. -func (ar ArchiveReader) Read(p []byte) (n int, err error) { - return ar.src.Read(p) -} diff --git a/vendor/github.com/u-root/uio/uio/buffer.go b/vendor/github.com/u-root/uio/uio/buffer.go deleted file mode 100644 index a0a603bb9b..0000000000 --- a/vendor/github.com/u-root/uio/uio/buffer.go +++ /dev/null @@ -1,380 +0,0 @@ -// Copyright 2018 the u-root Authors. All rights reserved -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package uio - -import ( - "encoding/binary" - "errors" - "fmt" -) - -// Marshaler is the interface implemented by an object that can marshal itself -// into binary form. -// -// Marshal appends data to the buffer b. -type Marshaler interface { - Marshal(l *Lexer) -} - -// Unmarshaler is the interface implemented by an object that can unmarshal a -// binary representation of itself. -// -// Unmarshal Consumes data from the buffer b. -type Unmarshaler interface { - Unmarshal(l *Lexer) error -} - -// ToBytes marshals m in the given byte order. -func ToBytes(m Marshaler, order binary.ByteOrder) []byte { - l := NewLexer(NewBuffer(nil), order) - m.Marshal(l) - return l.Data() -} - -// FromBytes unmarshals b into obj in the given byte order. -func FromBytes(obj Unmarshaler, b []byte, order binary.ByteOrder) error { - l := NewLexer(NewBuffer(b), order) - return obj.Unmarshal(l) -} - -// ToBigEndian marshals m to big endian byte order. -func ToBigEndian(m Marshaler) []byte { - l := NewBigEndianBuffer(nil) - m.Marshal(l) - return l.Data() -} - -// FromBigEndian unmarshals b into obj in big endian byte order. -func FromBigEndian(obj Unmarshaler, b []byte) error { - l := NewBigEndianBuffer(b) - return obj.Unmarshal(l) -} - -// ToLittleEndian marshals m to little endian byte order. -func ToLittleEndian(m Marshaler) []byte { - l := NewLittleEndianBuffer(nil) - m.Marshal(l) - return l.Data() -} - -// FromLittleEndian unmarshals b into obj in little endian byte order. -func FromLittleEndian(obj Unmarshaler, b []byte) error { - l := NewLittleEndianBuffer(b) - return obj.Unmarshal(l) -} - -// Buffer implements functions to manipulate byte slices in a zero-copy way. -type Buffer struct { - // data is the underlying data. - data []byte - - // byteCount keeps track of how many bytes have been consumed for - // debugging. - byteCount int -} - -// NewBuffer Consumes b for marshaling or unmarshaling in the given byte order. -func NewBuffer(b []byte) *Buffer { - return &Buffer{data: b} -} - -// Preallocate increases the capacity of the buffer by n bytes. -func (b *Buffer) Preallocate(n int) { - b.data = append(b.data, make([]byte, 0, n)...) -} - -// WriteN appends n bytes to the Buffer and returns a slice pointing to the -// newly appended bytes. -func (b *Buffer) WriteN(n int) []byte { - b.data = append(b.data, make([]byte, n)...) - return b.data[len(b.data)-n:] -} - -// ErrBufferTooShort is returned when a caller wants to read more bytes than -// are available in the buffer. -var ErrBufferTooShort = errors.New("buffer too short") - -// ReadN consumes n bytes from the Buffer. It returns nil, false if there -// aren't enough bytes left. -func (b *Buffer) ReadN(n int) ([]byte, error) { - if !b.Has(n) { - return nil, fmt.Errorf("%w at position %d: have %d bytes, want %d bytes", ErrBufferTooShort, b.byteCount, b.Len(), n) - } - rval := b.data[:n] - b.data = b.data[n:] - b.byteCount += n - return rval, nil -} - -// Data is unConsumed data remaining in the Buffer. -func (b *Buffer) Data() []byte { - return b.data -} - -// Has returns true if n bytes are available. -func (b *Buffer) Has(n int) bool { - return len(b.data) >= n -} - -// Len returns the length of the remaining bytes. -func (b *Buffer) Len() int { - return len(b.data) -} - -// Cap returns the available capacity. -func (b *Buffer) Cap() int { - return cap(b.data) -} - -// Lexer is a convenient encoder/decoder for buffers. -// -// Use: -// -// func (s *something) Unmarshal(l *Lexer) { -// s.Foo = l.Read8() -// s.Bar = l.Read8() -// s.Baz = l.Read16() -// return l.Error() -// } -type Lexer struct { - *Buffer - - // order is the byte order to write in / read in. - order binary.ByteOrder - - // err - err error -} - -// NewLexer returns a new coder for buffers. -func NewLexer(b *Buffer, order binary.ByteOrder) *Lexer { - return &Lexer{ - Buffer: b, - order: order, - } -} - -// NewLittleEndianBuffer returns a new little endian coder for a new buffer. -func NewLittleEndianBuffer(b []byte) *Lexer { - return &Lexer{ - Buffer: NewBuffer(b), - order: binary.LittleEndian, - } -} - -// NewBigEndianBuffer returns a new big endian coder for a new buffer. -func NewBigEndianBuffer(b []byte) *Lexer { - return &Lexer{ - Buffer: NewBuffer(b), - order: binary.BigEndian, - } -} - -// NewNativeEndianBuffer returns a new native endian coder for a new buffer. -func NewNativeEndianBuffer(b []byte) *Lexer { - return &Lexer{ - Buffer: NewBuffer(b), - order: binary.NativeEndian, - } -} - -// SetError sets the error if no error has previously been set. -// -// The error can later be retried with Error or FinError methods. -func (l *Lexer) SetError(err error) { - if l.err == nil { - l.err = err - } -} - -// Consume returns a slice of the next n bytes from the buffer. -// -// Consume gives direct access to the underlying data. -func (l *Lexer) Consume(n int) []byte { - v, err := l.Buffer.ReadN(n) - if err != nil { - l.SetError(err) - return nil - } - return v -} - -func (l *Lexer) append(n int) []byte { - return l.Buffer.WriteN(n) -} - -// Error returns an error if an error occurred reading from the buffer. -func (l *Lexer) Error() error { - return l.err -} - -// ErrUnreadBytes is returned when there is more data left to read in the buffer. -var ErrUnreadBytes = errors.New("buffer contains unread bytes") - -// FinError returns an error if an error occurred or if there is more data left -// to read in the buffer. -func (l *Lexer) FinError() error { - if l.err != nil { - return l.err - } - if l.Buffer.Len() > 0 { - return ErrUnreadBytes - } - return nil -} - -// Read8 reads a byte from the Buffer. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) Read8() uint8 { - v := l.Consume(1) - if v == nil { - return 0 - } - return v[0] -} - -// Read16 reads a 16-bit value from the Buffer. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) Read16() uint16 { - v := l.Consume(2) - if v == nil { - return 0 - } - return l.order.Uint16(v) -} - -// Read32 reads a 32-bit value from the Buffer. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) Read32() uint32 { - v := l.Consume(4) - if v == nil { - return 0 - } - return l.order.Uint32(v) -} - -// Read64 reads a 64-bit value from the Buffer. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) Read64() uint64 { - v := l.Consume(8) - if v == nil { - return 0 - } - return l.order.Uint64(v) -} - -// CopyN returns a copy of the next n bytes. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) CopyN(n int) []byte { - v := l.Consume(n) - if v == nil { - return nil - } - - p := make([]byte, n) - m := copy(p, v) - return p[:m] -} - -// ReadAll Consumes and returns a copy of all remaining bytes in the Buffer. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) ReadAll() []byte { - return l.CopyN(l.Len()) -} - -// ReadBytes reads exactly len(p) values from the Buffer. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) ReadBytes(p []byte) { - copy(p, l.Consume(len(p))) -} - -// Read implements io.Reader.Read. -func (l *Lexer) Read(p []byte) (int, error) { - v := l.Consume(len(p)) - if v == nil { - return 0, l.Error() - } - return copy(p, v), nil -} - -// ReadData reads the binary representation of data from the buffer. -// -// See binary.Read. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) ReadData(data interface{}) { - l.SetError(binary.Read(l, l.order, data)) -} - -// WriteData writes a binary representation of data to the buffer. -// -// See binary.Write. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) WriteData(data interface{}) { - l.SetError(binary.Write(l, l.order, data)) -} - -// Write8 writes a byte to the Buffer. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) Write8(v uint8) { - l.append(1)[0] = v -} - -// Write16 writes a 16-bit value to the Buffer. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) Write16(v uint16) { - l.order.PutUint16(l.append(2), v) -} - -// Write32 writes a 32-bit value to the Buffer. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) Write32(v uint32) { - l.order.PutUint32(l.append(4), v) -} - -// Write64 writes a 64-bit value to the Buffer. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) Write64(v uint64) { - l.order.PutUint64(l.append(8), v) -} - -// Append returns a newly appended n-size Buffer to write to. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) Append(n int) []byte { - return l.append(n) -} - -// WriteBytes writes p to the Buffer. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) WriteBytes(p []byte) { - copy(l.append(len(p)), p) -} - -// Write implements io.Writer.Write. -// -// If an error occurred, Error() will return a non-nil error. -func (l *Lexer) Write(p []byte) (int, error) { - return copy(l.append(len(p)), p), nil -} - -// Align appends bytes to align the length of the buffer to be divisible by n. -func (l *Lexer) Align(n int) { - pad := ((l.Len() + n - 1) &^ (n - 1)) - l.Len() - l.Append(pad) -} diff --git a/vendor/github.com/u-root/uio/uio/cached.go b/vendor/github.com/u-root/uio/uio/cached.go deleted file mode 100644 index a39ff981ea..0000000000 --- a/vendor/github.com/u-root/uio/uio/cached.go +++ /dev/null @@ -1,98 +0,0 @@ -// Copyright 2018 the u-root Authors. All rights reserved -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package uio - -import ( - "bytes" - "io" -) - -// CachingReader is a lazily caching wrapper of an io.Reader. -// -// The wrapped io.Reader is only read from on demand, not upfront. -type CachingReader struct { - buf bytes.Buffer - r io.Reader - pos int - eof bool -} - -// NewCachingReader buffers reads from r. -// -// r is only read from when Read() is called. -func NewCachingReader(r io.Reader) *CachingReader { - return &CachingReader{ - r: r, - } -} - -func (cr *CachingReader) read(p []byte) (int, error) { - n, err := cr.r.Read(p) - cr.buf.Write(p[:n]) - if err == io.EOF || (n == 0 && err == nil) { - cr.eof = true - return n, io.EOF - } - return n, err -} - -// NewReader returns a new io.Reader that reads cr from offset 0. -func (cr *CachingReader) NewReader() io.Reader { - return Reader(cr) -} - -// Read reads from cr; implementing io.Reader. -// -// TODO(chrisko): Decide whether to keep this or only keep NewReader(). -func (cr *CachingReader) Read(p []byte) (int, error) { - n, err := cr.ReadAt(p, int64(cr.pos)) - cr.pos += n - return n, err -} - -// ReadAt reads from cr; implementing io.ReaderAt. -func (cr *CachingReader) ReadAt(p []byte, off int64) (int, error) { - if len(p) == 0 { - return 0, nil - } - end := int(off) + len(p) - - // Is the caller asking for some uncached bytes? - unread := end - cr.buf.Len() - if unread > 0 { - // Avoiding allocations: use `p` to read more bytes. - for unread > 0 { - toRead := unread % len(p) - if toRead == 0 { - toRead = len(p) - } - - m, err := cr.read(p[:toRead]) - unread -= m - if err == io.EOF { - break - } - if err != nil { - return 0, err - } - } - } - - // If this is true, the entire file was read just to find out, but the - // offset is beyond the end of the file. - if off > int64(cr.buf.Len()) { - return 0, io.EOF - } - - var err error - // Did the caller ask for more than was available? - // - // Note that any io.ReaderAt implementation *must* return an error for - // short reads. - if cr.eof && unread > 0 { - err = io.EOF - } - return copy(p, cr.buf.Bytes()[off:]), err -} diff --git a/vendor/github.com/u-root/uio/uio/lazy.go b/vendor/github.com/u-root/uio/uio/lazy.go deleted file mode 100644 index 4cb06ac32b..0000000000 --- a/vendor/github.com/u-root/uio/uio/lazy.go +++ /dev/null @@ -1,165 +0,0 @@ -// Copyright 2018 the u-root Authors. All rights reserved -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package uio - -import ( - "fmt" - "io" - "os" -) - -// ReadOneByte reads one byte from given io.ReaderAt. -func ReadOneByte(r io.ReaderAt) error { - buf := make([]byte, 1) - n, err := r.ReadAt(buf, 0) - if err != nil { - return err - } - if n != 1 { - return fmt.Errorf("expected to read 1 byte, but got %d", n) - } - return nil -} - -// LazyOpener is a lazy io.Reader. -// -// LazyOpener will use a given open function to derive an io.Reader when Read -// is first called on the LazyOpener. -type LazyOpener struct { - r io.Reader - s string - err error - open func() (io.Reader, error) -} - -// NewLazyOpener returns a lazy io.Reader based on `open`. -func NewLazyOpener(filename string, open func() (io.Reader, error)) *LazyOpener { - if len(filename) == 0 { - return nil - } - return &LazyOpener{s: filename, open: open} -} - -// Read implements io.Reader.Read lazily. -// -// If called for the first time, the underlying reader will be obtained and -// then used for the first and subsequent calls to Read. -func (lr *LazyOpener) Read(p []byte) (int, error) { - if lr.r == nil && lr.err == nil { - lr.r, lr.err = lr.open() - } - if lr.err != nil { - return 0, lr.err - } - return lr.r.Read(p) -} - -// String implements fmt.Stringer. -func (lr *LazyOpener) String() string { - if len(lr.s) > 0 { - return lr.s - } - if lr.r != nil { - return fmt.Sprintf("%v", lr.r) - } - return "unopened mystery file" -} - -// Close implements io.Closer.Close. -func (lr *LazyOpener) Close() error { - if c, ok := lr.r.(io.Closer); ok { - return c.Close() - } - return nil -} - -// LazyOpenerAt is a lazy io.ReaderAt. -// -// LazyOpenerAt will use a given open function to derive an io.ReaderAt when -// ReadAt is first called. -type LazyOpenerAt struct { - r io.ReaderAt - s string - err error - limit int64 - open func() (io.ReaderAt, error) -} - -// NewLazyFile returns a lazy ReaderAt opened from path. -func NewLazyFile(path string) *LazyOpenerAt { - if len(path) == 0 { - return nil - } - return NewLazyOpenerAt(path, func() (io.ReaderAt, error) { - return os.Open(path) - }) -} - -// NewLazyLimitFile returns a lazy ReaderAt opened from path with a limit reader on it. -func NewLazyLimitFile(path string, limit int64) *LazyOpenerAt { - if len(path) == 0 { - return nil - } - return NewLazyLimitOpenerAt(path, limit, func() (io.ReaderAt, error) { - return os.Open(path) - }) -} - -// NewLazyOpenerAt returns a lazy io.ReaderAt based on `open`. -func NewLazyOpenerAt(filename string, open func() (io.ReaderAt, error)) *LazyOpenerAt { - return &LazyOpenerAt{s: filename, open: open, limit: -1} -} - -// NewLazyLimitOpenerAt returns a lazy io.ReaderAt based on `open`. -func NewLazyLimitOpenerAt(filename string, limit int64, open func() (io.ReaderAt, error)) *LazyOpenerAt { - return &LazyOpenerAt{s: filename, open: open, limit: limit} -} - -// String implements fmt.Stringer. -func (loa *LazyOpenerAt) String() string { - if len(loa.s) > 0 { - return loa.s - } - if loa.r != nil { - return fmt.Sprintf("%v", loa.r) - } - return "unopened mystery file" -} - -// File returns the backend file of the io.ReaderAt if it -// is backed by a os.File. -func (loa *LazyOpenerAt) File() *os.File { - if f, ok := loa.r.(*os.File); ok { - return f - } - return nil -} - -// ReadAt implements io.ReaderAt.ReadAt. -func (loa *LazyOpenerAt) ReadAt(p []byte, off int64) (int, error) { - if loa.r == nil && loa.err == nil { - loa.r, loa.err = loa.open() - } - if loa.err != nil { - return 0, loa.err - } - if loa.limit > 0 { - if off >= loa.limit { - return 0, io.EOF - } - if int64(len(p)) > loa.limit-off { - p = p[0 : loa.limit-off] - } - } - return loa.r.ReadAt(p, off) -} - -// Close implements io.Closer.Close. -func (loa *LazyOpenerAt) Close() error { - if c, ok := loa.r.(io.Closer); ok { - return c.Close() - } - return nil -} diff --git a/vendor/github.com/u-root/uio/uio/null.go b/vendor/github.com/u-root/uio/uio/null.go deleted file mode 100644 index 1c89f74101..0000000000 --- a/vendor/github.com/u-root/uio/uio/null.go +++ /dev/null @@ -1,76 +0,0 @@ -// Copyright 2012-2019 the u-root Authors. All rights reserved -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Discard implementation copied from the Go project: -// https://golang.org/src/io/ioutil/ioutil.go. -// Copyright 2009 The Go Authors. All rights reserved. - -package uio - -import ( - "io" - "sync" -) - -// devNull implements an io.Writer and io.ReaderFrom that discards any writes. -type devNull struct{} - -// devNull implements ReaderFrom as an optimization so io.Copy to -// ioutil.Discard can avoid doing unnecessary work. -var _ io.ReaderFrom = devNull{} - -// Write is an io.Writer.Write that discards data. -func (devNull) Write(p []byte) (int, error) { - return len(p), nil -} - -// Name is like os.File.Name() and returns "null". -func (devNull) Name() string { - return "null" -} - -// WriteString implements io.StringWriter and discards given data. -func (devNull) WriteString(s string) (int, error) { - return len(s), nil -} - -var blackHolePool = sync.Pool{ - New: func() interface{} { - b := make([]byte, 8192) - return &b - }, -} - -// ReadFrom implements io.ReaderFrom and discards data being read. -func (devNull) ReadFrom(r io.Reader) (n int64, err error) { - bufp := blackHolePool.Get().(*[]byte) - var readSize int - for { - readSize, err = r.Read(*bufp) - n += int64(readSize) - if err != nil { - blackHolePool.Put(bufp) - if err == io.EOF { - return n, nil - } - return - } - } -} - -// Close does nothing. -func (devNull) Close() error { - return nil -} - -// WriteNameCloser is the interface that groups Write, Close, and Name methods. -type WriteNameCloser interface { - io.Writer - io.Closer - Name() string -} - -// Discard is a WriteNameCloser on which all Write and Close calls succeed -// without doing anything, and the Name call returns "null". -var Discard WriteNameCloser = devNull{} diff --git a/vendor/github.com/u-root/uio/uio/progress.go b/vendor/github.com/u-root/uio/uio/progress.go deleted file mode 100644 index 3aa2a3e062..0000000000 --- a/vendor/github.com/u-root/uio/uio/progress.go +++ /dev/null @@ -1,42 +0,0 @@ -// Copyright 2019 the u-root Authors. All rights reserved -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package uio - -import ( - "io" - "strings" -) - -// ProgressReadCloser implements io.ReadCloser and prints Symbol to W after every -// Interval bytes passes through RC. -type ProgressReadCloser struct { - RC io.ReadCloser - - Symbol string - Interval int - W io.Writer - - counter int - written bool -} - -// Read implements io.Reader for ProgressReadCloser. -func (rc *ProgressReadCloser) Read(p []byte) (n int, err error) { - defer func() { - numSymbols := (rc.counter%rc.Interval + n) / rc.Interval - _, _ = rc.W.Write([]byte(strings.Repeat(rc.Symbol, numSymbols))) - rc.counter += n - rc.written = (rc.written || numSymbols > 0) - if err == io.EOF && rc.written { - _, _ = rc.W.Write([]byte("\n")) - } - }() - return rc.RC.Read(p) -} - -// Close implements io.Closer for ProgressReader. -func (rc *ProgressReadCloser) Close() error { - return rc.RC.Close() -} diff --git a/vendor/github.com/u-root/uio/uio/reader.go b/vendor/github.com/u-root/uio/uio/reader.go deleted file mode 100644 index 0ca839a073..0000000000 --- a/vendor/github.com/u-root/uio/uio/reader.go +++ /dev/null @@ -1,67 +0,0 @@ -// Copyright 2018 the u-root Authors. All rights reserved -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package uio - -import ( - "bytes" - "io" - "math" - "os" - "reflect" -) - -type inMemReaderAt interface { - Bytes() []byte -} - -// ReadAll reads everything that r contains. -// -// Callers *must* not modify bytes in the returned byte slice. -// -// If r is an in-memory representation, ReadAll will attempt to return a -// pointer to those bytes directly. -func ReadAll(r io.ReaderAt) ([]byte, error) { - if imra, ok := r.(inMemReaderAt); ok { - return imra.Bytes(), nil - } - return io.ReadAll(Reader(r)) -} - -// Reader generates a Reader from a ReaderAt. -func Reader(r io.ReaderAt) io.Reader { - return io.NewSectionReader(r, 0, math.MaxInt64) -} - -// ReaderAtEqual compares the contents of r1 and r2. -func ReaderAtEqual(r1, r2 io.ReaderAt) bool { - var c, d []byte - var r1err, r2err error - if r1 != nil { - c, r1err = ReadAll(r1) - } - if r2 != nil { - d, r2err = ReadAll(r2) - } - return bytes.Equal(c, d) && reflect.DeepEqual(r1err, r2err) -} - -// ReadIntoFile reads all from io.Reader into the file at given path. -// -// If the file at given path does not exist, a new file will be created. -// If the file exists at the given path, but not empty, it will be truncated. -func ReadIntoFile(r io.Reader, p string) error { - f, err := os.OpenFile(p, os.O_CREATE|os.O_RDWR|os.O_TRUNC, 0o644) - if err != nil { - return err - } - defer f.Close() - - _, err = io.Copy(f, r) - if err != nil { - return err - } - - return f.Close() -} diff --git a/vendor/github.com/u-root/uio/uio/uio.go b/vendor/github.com/u-root/uio/uio/uio.go deleted file mode 100644 index bdd507c8eb..0000000000 --- a/vendor/github.com/u-root/uio/uio/uio.go +++ /dev/null @@ -1,9 +0,0 @@ -// Copyright 2018 the u-root Authors. All rights reserved -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package uio unifies commonly used io utilities for u-root. -// -// uio's most used feature is the Buffer/Lexer combination to parse binary data -// of arbitrary endianness into data structures. -package uio diff --git a/vendor/golang.org/x/crypto/ssh/knownhosts/knownhosts.go b/vendor/golang.org/x/crypto/ssh/knownhosts/knownhosts.go deleted file mode 100644 index cf520ad9cc..0000000000 --- a/vendor/golang.org/x/crypto/ssh/knownhosts/knownhosts.go +++ /dev/null @@ -1,553 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package knownhosts implements a parser for the OpenSSH known_hosts -// host key database, and provides utility functions for writing -// OpenSSH compliant known_hosts files. -package knownhosts - -import ( - "bufio" - "bytes" - "crypto/hmac" - "crypto/rand" - "crypto/sha1" - "encoding/base64" - "errors" - "fmt" - "io" - "net" - "os" - "strings" - - "golang.org/x/crypto/ssh" -) - -// See the sshd manpage -// (http://man.openbsd.org/sshd#SSH_KNOWN_HOSTS_FILE_FORMAT) for -// background. - -type addr struct{ host, port string } - -func (a *addr) String() string { - h := a.host - if strings.Contains(h, ":") { - h = "[" + h + "]" - } - return h + ":" + a.port -} - -type matcher interface { - match(addr) bool -} - -type hostPattern struct { - negate bool - addr addr -} - -func (p *hostPattern) String() string { - n := "" - if p.negate { - n = "!" - } - - return n + p.addr.String() -} - -type hostPatterns []hostPattern - -func (ps hostPatterns) match(a addr) bool { - matched := false - for _, p := range ps { - if !p.match(a) { - continue - } - if p.negate { - return false - } - matched = true - } - return matched -} - -// See -// https://android.googlesource.com/platform/external/openssh/+/ab28f5495c85297e7a597c1ba62e996416da7c7e/addrmatch.c -// The matching of * has no regard for separators, unlike filesystem globs -func wildcardMatch(pat []byte, str []byte) bool { - for { - if len(pat) == 0 { - return len(str) == 0 - } - if len(str) == 0 { - return false - } - - if pat[0] == '*' { - if len(pat) == 1 { - return true - } - - for j := range str { - if wildcardMatch(pat[1:], str[j:]) { - return true - } - } - return false - } - - if pat[0] == '?' || pat[0] == str[0] { - pat = pat[1:] - str = str[1:] - } else { - return false - } - } -} - -func (p *hostPattern) match(a addr) bool { - return wildcardMatch([]byte(p.addr.host), []byte(a.host)) && p.addr.port == a.port -} - -type keyDBLine struct { - cert bool - matcher matcher - knownKey KnownKey -} - -func serialize(k ssh.PublicKey) string { - return k.Type() + " " + base64.StdEncoding.EncodeToString(k.Marshal()) -} - -func (l *keyDBLine) match(a addr) bool { - return l.matcher.match(a) -} - -type hostKeyDB struct { - // Serialized version of revoked keys - revoked map[string]*KnownKey - lines []keyDBLine -} - -func newHostKeyDB() *hostKeyDB { - db := &hostKeyDB{ - revoked: make(map[string]*KnownKey), - } - - return db -} - -func keyEq(a, b ssh.PublicKey) bool { - return bytes.Equal(a.Marshal(), b.Marshal()) -} - -// IsHostAuthority can be used as a callback in ssh.CertChecker -func (db *hostKeyDB) IsHostAuthority(remote ssh.PublicKey, address string) bool { - h, p, err := net.SplitHostPort(address) - if err != nil { - return false - } - a := addr{host: h, port: p} - - for _, l := range db.lines { - if l.cert && keyEq(l.knownKey.Key, remote) && l.match(a) { - return true - } - } - return false -} - -// IsRevoked can be used as a callback in ssh.CertChecker -func (db *hostKeyDB) IsRevoked(key *ssh.Certificate) bool { - if _, ok := db.revoked[string(key.Marshal())]; ok { - return true - } - if _, ok := db.revoked[string(key.SignatureKey.Marshal())]; ok { - return true - } - return false -} - -const markerCert = "@cert-authority" -const markerRevoked = "@revoked" - -func nextWord(line []byte) (string, []byte) { - i := bytes.IndexAny(line, "\t ") - if i == -1 { - return string(line), nil - } - - return string(line[:i]), trimSpace(line[i:]) -} - -func parseLine(line []byte) (marker, host string, key ssh.PublicKey, err error) { - if w, next := nextWord(line); w == markerCert || w == markerRevoked { - marker = w - line = next - } - - host, line = nextWord(line) - // If the extracted 'host' starts with '@', it means we either encountered - // a second marker (e.g., "@cert-authority @revoked") or an unknown marker - // (e.g., "@unknown"). Both are invalid. - if len(host) > 0 && host[0] == '@' { - return "", "", nil, fmt.Errorf("knownhosts: unexpected marker: %q", host) - } - if len(line) == 0 { - return "", "", nil, errors.New("knownhosts: missing host pattern") - } - - wantType, line := nextWord(line) - if len(line) == 0 { - return "", "", nil, errors.New("knownhosts: missing key type pattern") - } - - keyBlob, _ := nextWord(line) - - keyBytes, err := base64.StdEncoding.DecodeString(keyBlob) - if err != nil { - return "", "", nil, err - } - key, err = ssh.ParsePublicKey(keyBytes) - if err != nil { - return "", "", nil, err - } - - if key.Type() != wantType { - return "", "", nil, fmt.Errorf("knownhosts: key type mismatch: found %q, want %q", key.Type(), wantType) - } - - return marker, host, key, nil -} - -func (db *hostKeyDB) parseLine(line []byte, filename string, linenum int) error { - marker, pattern, key, err := parseLine(line) - if err != nil { - return err - } - - if marker == markerRevoked { - db.revoked[string(key.Marshal())] = &KnownKey{ - Key: key, - Filename: filename, - Line: linenum, - } - - return nil - } - - entry := keyDBLine{ - cert: marker == markerCert, - knownKey: KnownKey{ - Filename: filename, - Line: linenum, - Key: key, - }, - } - - if pattern[0] == '|' { - entry.matcher, err = newHashedHost(pattern) - } else { - entry.matcher, err = newHostnameMatcher(pattern) - } - - if err != nil { - return err - } - - db.lines = append(db.lines, entry) - return nil -} - -func newHostnameMatcher(pattern string) (matcher, error) { - var hps hostPatterns - for _, p := range strings.Split(pattern, ",") { - if len(p) == 0 { - continue - } - - var a addr - var negate bool - if p[0] == '!' { - negate = true - p = p[1:] - } - - if len(p) == 0 { - return nil, errors.New("knownhosts: negation without following hostname") - } - - var err error - if p[0] == '[' { - a.host, a.port, err = net.SplitHostPort(p) - if err != nil { - return nil, err - } - } else { - a.host, a.port, err = net.SplitHostPort(p) - if err != nil { - a.host = p - a.port = "22" - } - } - hps = append(hps, hostPattern{ - negate: negate, - addr: a, - }) - } - return hps, nil -} - -// KnownKey represents a key declared in a known_hosts file. -type KnownKey struct { - Key ssh.PublicKey - Filename string - Line int -} - -func (k *KnownKey) String() string { - return fmt.Sprintf("%s:%d: %s", k.Filename, k.Line, serialize(k.Key)) -} - -// KeyError is returned if we did not find the key in the host key -// database, or there was a mismatch. Typically, in batch -// applications, this should be interpreted as failure. Interactive -// applications can offer an interactive prompt to the user. -type KeyError struct { - // Want holds the accepted host keys. For each key algorithm, - // there can be multiple hostkeys. If Want is empty, the host - // is unknown. If Want is non-empty, there was a mismatch, which - // can signify a MITM attack. - Want []KnownKey -} - -func (u *KeyError) Error() string { - if len(u.Want) == 0 { - return "knownhosts: key is unknown" - } - return "knownhosts: key mismatch" -} - -// RevokedError is returned if we found a key that was revoked. -type RevokedError struct { - Revoked KnownKey -} - -func (r *RevokedError) Error() string { - return "knownhosts: key is revoked" -} - -// check checks a key against the host database. This should not be -// used for verifying certificates. -func (db *hostKeyDB) check(address string, remote net.Addr, remoteKey ssh.PublicKey) error { - if revoked := db.revoked[string(remoteKey.Marshal())]; revoked != nil { - return &RevokedError{Revoked: *revoked} - } - - host, port, err := net.SplitHostPort(remote.String()) - if err != nil { - return fmt.Errorf("knownhosts: SplitHostPort(%s): %v", remote, err) - } - - hostToCheck := addr{host, port} - if address != "" { - // Give preference to the hostname if available. - host, port, err := net.SplitHostPort(address) - if err != nil { - return fmt.Errorf("knownhosts: SplitHostPort(%s): %v", address, err) - } - - hostToCheck = addr{host, port} - } - - return db.checkAddr(hostToCheck, remoteKey) -} - -// checkAddr checks if we can find the given public key for the -// given address. If we only find an entry for the IP address, -// or only the hostname, then this still succeeds. -func (db *hostKeyDB) checkAddr(a addr, remoteKey ssh.PublicKey) error { - // TODO(hanwen): are these the right semantics? What if there - // is just a key for the IP address, but not for the - // hostname? - - keyErr := &KeyError{} - - for _, l := range db.lines { - if !l.match(a) { - continue - } - - keyErr.Want = append(keyErr.Want, l.knownKey) - if keyEq(l.knownKey.Key, remoteKey) { - return nil - } - } - - return keyErr -} - -// The Read function parses file contents. -func (db *hostKeyDB) Read(r io.Reader, filename string) error { - scanner := bufio.NewScanner(r) - - lineNum := 0 - for scanner.Scan() { - lineNum++ - line := scanner.Bytes() - line = trimSpace(line) - if len(line) == 0 || line[0] == '#' { - continue - } - - if err := db.parseLine(line, filename, lineNum); err != nil { - return fmt.Errorf("knownhosts: %s:%d: %v", filename, lineNum, err) - } - } - return scanner.Err() -} - -// New creates a host key callback from the given OpenSSH host key -// files. The returned callback is for use in -// ssh.ClientConfig.HostKeyCallback. By preference, the key check -// operates on the hostname if available, i.e. if a server changes its -// IP address, the host key check will still succeed, even though a -// record of the new IP address is not available. -func New(files ...string) (ssh.HostKeyCallback, error) { - db := newHostKeyDB() - for _, fn := range files { - f, err := os.Open(fn) - if err != nil { - return nil, err - } - defer f.Close() - if err := db.Read(f, fn); err != nil { - return nil, err - } - } - - var certChecker ssh.CertChecker - certChecker.IsHostAuthority = db.IsHostAuthority - certChecker.IsRevoked = db.IsRevoked - certChecker.HostKeyFallback = db.check - - return certChecker.CheckHostKey, nil -} - -// Normalize normalizes an address into the form used in known_hosts. Supports -// IPv4, hostnames, bracketed IPv6. Any other non-standard formats are returned -// with minimal transformation. -func Normalize(address string) string { - const defaultSSHPort = "22" - - host, port, err := net.SplitHostPort(address) - if err != nil { - host = address - port = defaultSSHPort - } - - if strings.HasPrefix(host, "[") && strings.HasSuffix(host, "]") { - host = host[1 : len(host)-1] - } - - if port == defaultSSHPort { - return host - } - return "[" + host + "]:" + port -} - -// Line returns a line to add append to the known_hosts files. -func Line(addresses []string, key ssh.PublicKey) string { - var trimmed []string - for _, a := range addresses { - trimmed = append(trimmed, Normalize(a)) - } - - return strings.Join(trimmed, ",") + " " + serialize(key) -} - -// HashHostname hashes the given hostname. The hostname is not -// normalized before hashing. -func HashHostname(hostname string) string { - // TODO(hanwen): check if we can safely normalize this always. - salt := make([]byte, sha1.Size) - - _, err := rand.Read(salt) - if err != nil { - panic(fmt.Sprintf("crypto/rand failure %v", err)) - } - - hash := hashHost(hostname, salt) - return encodeHash(sha1HashType, salt, hash) -} - -func decodeHash(encoded string) (hashType string, salt, hash []byte, err error) { - if len(encoded) == 0 || encoded[0] != '|' { - err = errors.New("knownhosts: hashed host must start with '|'") - return - } - components := strings.Split(encoded, "|") - if len(components) != 4 { - err = fmt.Errorf("knownhosts: got %d components, want 3", len(components)) - return - } - - hashType = components[1] - if salt, err = base64.StdEncoding.DecodeString(components[2]); err != nil { - return - } - if hash, err = base64.StdEncoding.DecodeString(components[3]); err != nil { - return - } - return -} - -func encodeHash(typ string, salt []byte, hash []byte) string { - return strings.Join([]string{"", - typ, - base64.StdEncoding.EncodeToString(salt), - base64.StdEncoding.EncodeToString(hash), - }, "|") -} - -// See https://android.googlesource.com/platform/external/openssh/+/ab28f5495c85297e7a597c1ba62e996416da7c7e/hostfile.c#120 -func hashHost(hostname string, salt []byte) []byte { - mac := hmac.New(sha1.New, salt) - mac.Write([]byte(hostname)) - return mac.Sum(nil) -} - -type hashedHost struct { - salt []byte - hash []byte -} - -const sha1HashType = "1" - -func newHashedHost(encoded string) (*hashedHost, error) { - typ, salt, hash, err := decodeHash(encoded) - if err != nil { - return nil, err - } - - // The type field seems for future algorithm agility, but it's - // actually hardcoded in openssh currently, see - // https://android.googlesource.com/platform/external/openssh/+/ab28f5495c85297e7a597c1ba62e996416da7c7e/hostfile.c#120 - if typ != sha1HashType { - return nil, fmt.Errorf("knownhosts: got hash type %s, must be '1'", typ) - } - - return &hashedHost{salt: salt, hash: hash}, nil -} - -func (h *hashedHost) match(a addr) bool { - return bytes.Equal(hashHost(Normalize(a.String()), h.salt), h.hash) -} - -// trimSpace removes leading and trailing ASCII whitespace (space and tab). It -// is used instead of bytes.TrimSpace to match OpenSSH behavior, which strictly -// parses only ASCII space (0x20) and tab (0x09) as whitespace. -func trimSpace(in []byte) []byte { - return bytes.Trim(in, " \t") -} diff --git a/vendor/golang.org/x/net/bpf/asm.go b/vendor/golang.org/x/net/bpf/asm.go deleted file mode 100644 index 15e21b1812..0000000000 --- a/vendor/golang.org/x/net/bpf/asm.go +++ /dev/null @@ -1,41 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package bpf - -import "fmt" - -// Assemble converts insts into raw instructions suitable for loading -// into a BPF virtual machine. -// -// Currently, no optimization is attempted, the assembled program flow -// is exactly as provided. -func Assemble(insts []Instruction) ([]RawInstruction, error) { - ret := make([]RawInstruction, len(insts)) - var err error - for i, inst := range insts { - ret[i], err = inst.Assemble() - if err != nil { - return nil, fmt.Errorf("assembling instruction %d: %s", i+1, err) - } - } - return ret, nil -} - -// Disassemble attempts to parse raw back into -// Instructions. Unrecognized RawInstructions are assumed to be an -// extension not implemented by this package, and are passed through -// unchanged to the output. The allDecoded value reports whether insts -// contains no RawInstructions. -func Disassemble(raw []RawInstruction) (insts []Instruction, allDecoded bool) { - insts = make([]Instruction, len(raw)) - allDecoded = true - for i, r := range raw { - insts[i] = r.Disassemble() - if _, ok := insts[i].(RawInstruction); ok { - allDecoded = false - } - } - return insts, allDecoded -} diff --git a/vendor/golang.org/x/net/bpf/constants.go b/vendor/golang.org/x/net/bpf/constants.go deleted file mode 100644 index 12f3ee835a..0000000000 --- a/vendor/golang.org/x/net/bpf/constants.go +++ /dev/null @@ -1,222 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package bpf - -// A Register is a register of the BPF virtual machine. -type Register uint16 - -const ( - // RegA is the accumulator register. RegA is always the - // destination register of ALU operations. - RegA Register = iota - // RegX is the indirection register, used by LoadIndirect - // operations. - RegX -) - -// An ALUOp is an arithmetic or logic operation. -type ALUOp uint16 - -// ALU binary operation types. -const ( - ALUOpAdd ALUOp = iota << 4 - ALUOpSub - ALUOpMul - ALUOpDiv - ALUOpOr - ALUOpAnd - ALUOpShiftLeft - ALUOpShiftRight - aluOpNeg // Not exported because it's the only unary ALU operation, and gets its own instruction type. - ALUOpMod - ALUOpXor -) - -// A JumpTest is a comparison operator used in conditional jumps. -type JumpTest uint16 - -// Supported operators for conditional jumps. -// K can be RegX for JumpIfX -const ( - // K == A - JumpEqual JumpTest = iota - // K != A - JumpNotEqual - // K > A - JumpGreaterThan - // K < A - JumpLessThan - // K >= A - JumpGreaterOrEqual - // K <= A - JumpLessOrEqual - // K & A != 0 - JumpBitsSet - // K & A == 0 - JumpBitsNotSet -) - -// An Extension is a function call provided by the kernel that -// performs advanced operations that are expensive or impossible -// within the BPF virtual machine. -// -// Extensions are only implemented by the Linux kernel. -// -// TODO: should we prune this list? Some of these extensions seem -// either broken or near-impossible to use correctly, whereas other -// (len, random, ifindex) are quite useful. -type Extension int - -// Extension functions available in the Linux kernel. -const ( - // extOffset is the negative maximum number of instructions used - // to load instructions by overloading the K argument. - extOffset = -0x1000 - // ExtLen returns the length of the packet. - ExtLen Extension = 1 - // ExtProto returns the packet's L3 protocol type. - ExtProto Extension = 0 - // ExtType returns the packet's type (skb->pkt_type in the kernel) - // - // TODO: better documentation. How nice an API do we want to - // provide for these esoteric extensions? - ExtType Extension = 4 - // ExtPayloadOffset returns the offset of the packet payload, or - // the first protocol header that the kernel does not know how to - // parse. - ExtPayloadOffset Extension = 52 - // ExtInterfaceIndex returns the index of the interface on which - // the packet was received. - ExtInterfaceIndex Extension = 8 - // ExtNetlinkAttr returns the netlink attribute of type X at - // offset A. - ExtNetlinkAttr Extension = 12 - // ExtNetlinkAttrNested returns the nested netlink attribute of - // type X at offset A. - ExtNetlinkAttrNested Extension = 16 - // ExtMark returns the packet's mark value. - ExtMark Extension = 20 - // ExtQueue returns the packet's assigned hardware queue. - ExtQueue Extension = 24 - // ExtLinkLayerType returns the packet's hardware address type - // (e.g. Ethernet, Infiniband). - ExtLinkLayerType Extension = 28 - // ExtRXHash returns the packets receive hash. - // - // TODO: figure out what this rxhash actually is. - ExtRXHash Extension = 32 - // ExtCPUID returns the ID of the CPU processing the current - // packet. - ExtCPUID Extension = 36 - // ExtVLANTag returns the packet's VLAN tag. - ExtVLANTag Extension = 44 - // ExtVLANTagPresent returns non-zero if the packet has a VLAN - // tag. - // - // TODO: I think this might be a lie: it reads bit 0x1000 of the - // VLAN header, which changed meaning in recent revisions of the - // spec - this extension may now return meaningless information. - ExtVLANTagPresent Extension = 48 - // ExtVLANProto returns 0x8100 if the frame has a VLAN header, - // 0x88a8 if the frame has a "Q-in-Q" double VLAN header, or some - // other value if no VLAN information is present. - ExtVLANProto Extension = 60 - // ExtRand returns a uniformly random uint32. - ExtRand Extension = 56 -) - -// The following gives names to various bit patterns used in opcode construction. - -const ( - opMaskCls uint16 = 0x7 - // opClsLoad masks - opMaskLoadDest = 0x01 - opMaskLoadWidth = 0x18 - opMaskLoadMode = 0xe0 - // opClsALU & opClsJump - opMaskOperand = 0x08 - opMaskOperator = 0xf0 -) - -const ( - // +---------------+-----------------+---+---+---+ - // | AddrMode (3b) | LoadWidth (2b) | 0 | 0 | 0 | - // +---------------+-----------------+---+---+---+ - opClsLoadA uint16 = iota - // +---------------+-----------------+---+---+---+ - // | AddrMode (3b) | LoadWidth (2b) | 0 | 0 | 1 | - // +---------------+-----------------+---+---+---+ - opClsLoadX - // +---+---+---+---+---+---+---+---+ - // | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | - // +---+---+---+---+---+---+---+---+ - opClsStoreA - // +---+---+---+---+---+---+---+---+ - // | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | - // +---+---+---+---+---+---+---+---+ - opClsStoreX - // +---------------+-----------------+---+---+---+ - // | Operator (4b) | OperandSrc (1b) | 1 | 0 | 0 | - // +---------------+-----------------+---+---+---+ - opClsALU - // +-----------------------------+---+---+---+---+ - // | TestOperator (4b) | 0 | 1 | 0 | 1 | - // +-----------------------------+---+---+---+---+ - opClsJump - // +---+-------------------------+---+---+---+---+ - // | 0 | 0 | 0 | RetSrc (1b) | 0 | 1 | 1 | 0 | - // +---+-------------------------+---+---+---+---+ - opClsReturn - // +---+-------------------------+---+---+---+---+ - // | 0 | 0 | 0 | TXAorTAX (1b) | 0 | 1 | 1 | 1 | - // +---+-------------------------+---+---+---+---+ - opClsMisc -) - -const ( - opAddrModeImmediate uint16 = iota << 5 - opAddrModeAbsolute - opAddrModeIndirect - opAddrModeScratch - opAddrModePacketLen // actually an extension, not an addressing mode. - opAddrModeMemShift -) - -const ( - opLoadWidth4 uint16 = iota << 3 - opLoadWidth2 - opLoadWidth1 -) - -// Operand for ALU and Jump instructions -type opOperand uint16 - -// Supported operand sources. -const ( - opOperandConstant opOperand = iota << 3 - opOperandX -) - -// An jumpOp is a conditional jump condition. -type jumpOp uint16 - -// Supported jump conditions. -const ( - opJumpAlways jumpOp = iota << 4 - opJumpEqual - opJumpGT - opJumpGE - opJumpSet -) - -const ( - opRetSrcConstant uint16 = iota << 4 - opRetSrcA -) - -const ( - opMiscTAX = 0x00 - opMiscTXA = 0x80 -) diff --git a/vendor/golang.org/x/net/bpf/doc.go b/vendor/golang.org/x/net/bpf/doc.go deleted file mode 100644 index 1ea566b7ff..0000000000 --- a/vendor/golang.org/x/net/bpf/doc.go +++ /dev/null @@ -1,87 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -/* -Package bpf implements marshaling and unmarshaling of programs for the -Berkeley Packet Filter virtual machine, and provides a Go implementation -of the virtual machine. - -BPF's main use is to specify a packet filter for network taps, so that -the kernel doesn't have to expensively copy every packet it sees to -userspace. However, it's been repurposed to other areas where running -user code in-kernel is needed. For example, Linux's seccomp uses BPF -to apply security policies to system calls. For simplicity, this -documentation refers only to packets, but other uses of BPF have their -own data payloads. - -BPF programs run in a restricted virtual machine. It has almost no -access to kernel functions, and while conditional branches are -allowed, they can only jump forwards, to guarantee that there are no -infinite loops. - -# The virtual machine - -The BPF VM is an accumulator machine. Its main register, called -register A, is an implicit source and destination in all arithmetic -and logic operations. The machine also has 16 scratch registers for -temporary storage, and an indirection register (register X) for -indirect memory access. All registers are 32 bits wide. - -Each run of a BPF program is given one packet, which is placed in the -VM's read-only "main memory". LoadAbsolute and LoadIndirect -instructions can fetch up to 32 bits at a time into register A for -examination. - -The goal of a BPF program is to produce and return a verdict (uint32), -which tells the kernel what to do with the packet. In the context of -packet filtering, the returned value is the number of bytes of the -packet to forward to userspace, or 0 to ignore the packet. Other -contexts like seccomp define their own return values. - -In order to simplify programs, attempts to read past the end of the -packet terminate the program execution with a verdict of 0 (ignore -packet). This means that the vast majority of BPF programs don't need -to do any explicit bounds checking. - -In addition to the bytes of the packet, some BPF programs have access -to extensions, which are essentially calls to kernel utility -functions. Currently, the only extensions supported by this package -are the Linux packet filter extensions. - -# Security Considerations - -The implementation of the BPF VM in this package is suitable for -testing BPF programs. It aims for consistency with other BPF VM -implementations, but divergence in behavior is not considered a -security issue. - -# Examples - -This packet filter selects all ARP packets. - - bpf.Assemble([]bpf.Instruction{ - // Load "EtherType" field from the ethernet header. - bpf.LoadAbsolute{Off: 12, Size: 2}, - // Skip over the next instruction if EtherType is not ARP. - bpf.JumpIf{Cond: bpf.JumpNotEqual, Val: 0x0806, SkipTrue: 1}, - // Verdict is "send up to 4k of the packet to userspace." - bpf.RetConstant{Val: 4096}, - // Verdict is "ignore packet." - bpf.RetConstant{Val: 0}, - }) - -This packet filter captures a random 1% sample of traffic. - - bpf.Assemble([]bpf.Instruction{ - // Get a 32-bit random number from the Linux kernel. - bpf.LoadExtension{Num: bpf.ExtRand}, - // 1% dice roll? - bpf.JumpIf{Cond: bpf.JumpLessThan, Val: 2^32/100, SkipFalse: 1}, - // Capture. - bpf.RetConstant{Val: 4096}, - // Ignore. - bpf.RetConstant{Val: 0}, - }) -*/ -package bpf // import "golang.org/x/net/bpf" diff --git a/vendor/golang.org/x/net/bpf/instructions.go b/vendor/golang.org/x/net/bpf/instructions.go deleted file mode 100644 index 3cffcaa014..0000000000 --- a/vendor/golang.org/x/net/bpf/instructions.go +++ /dev/null @@ -1,726 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package bpf - -import "fmt" - -// An Instruction is one instruction executed by the BPF virtual -// machine. -type Instruction interface { - // Assemble assembles the Instruction into a RawInstruction. - Assemble() (RawInstruction, error) -} - -// A RawInstruction is a raw BPF virtual machine instruction. -type RawInstruction struct { - // Operation to execute. - Op uint16 - // For conditional jump instructions, the number of instructions - // to skip if the condition is true/false. - Jt uint8 - Jf uint8 - // Constant parameter. The meaning depends on the Op. - K uint32 -} - -// Assemble implements the Instruction Assemble method. -func (ri RawInstruction) Assemble() (RawInstruction, error) { return ri, nil } - -// Disassemble parses ri into an Instruction and returns it. If ri is -// not recognized by this package, ri itself is returned. -func (ri RawInstruction) Disassemble() Instruction { - switch ri.Op & opMaskCls { - case opClsLoadA, opClsLoadX: - reg := Register(ri.Op & opMaskLoadDest) - sz := 0 - switch ri.Op & opMaskLoadWidth { - case opLoadWidth4: - sz = 4 - case opLoadWidth2: - sz = 2 - case opLoadWidth1: - sz = 1 - default: - return ri - } - switch ri.Op & opMaskLoadMode { - case opAddrModeImmediate: - if sz != 4 { - return ri - } - return LoadConstant{Dst: reg, Val: ri.K} - case opAddrModeScratch: - if sz != 4 || ri.K > 15 { - return ri - } - return LoadScratch{Dst: reg, N: int(ri.K)} - case opAddrModeAbsolute: - if ri.K > extOffset+0xffffffff { - return LoadExtension{Num: Extension(-extOffset + ri.K)} - } - return LoadAbsolute{Size: sz, Off: ri.K} - case opAddrModeIndirect: - return LoadIndirect{Size: sz, Off: ri.K} - case opAddrModePacketLen: - if sz != 4 { - return ri - } - return LoadExtension{Num: ExtLen} - case opAddrModeMemShift: - return LoadMemShift{Off: ri.K} - default: - return ri - } - - case opClsStoreA: - if ri.Op != opClsStoreA || ri.K > 15 { - return ri - } - return StoreScratch{Src: RegA, N: int(ri.K)} - - case opClsStoreX: - if ri.Op != opClsStoreX || ri.K > 15 { - return ri - } - return StoreScratch{Src: RegX, N: int(ri.K)} - - case opClsALU: - switch op := ALUOp(ri.Op & opMaskOperator); op { - case ALUOpAdd, ALUOpSub, ALUOpMul, ALUOpDiv, ALUOpOr, ALUOpAnd, ALUOpShiftLeft, ALUOpShiftRight, ALUOpMod, ALUOpXor: - switch operand := opOperand(ri.Op & opMaskOperand); operand { - case opOperandX: - return ALUOpX{Op: op} - case opOperandConstant: - return ALUOpConstant{Op: op, Val: ri.K} - default: - return ri - } - case aluOpNeg: - return NegateA{} - default: - return ri - } - - case opClsJump: - switch op := jumpOp(ri.Op & opMaskOperator); op { - case opJumpAlways: - return Jump{Skip: ri.K} - case opJumpEqual, opJumpGT, opJumpGE, opJumpSet: - cond, skipTrue, skipFalse := jumpOpToTest(op, ri.Jt, ri.Jf) - switch operand := opOperand(ri.Op & opMaskOperand); operand { - case opOperandX: - return JumpIfX{Cond: cond, SkipTrue: skipTrue, SkipFalse: skipFalse} - case opOperandConstant: - return JumpIf{Cond: cond, Val: ri.K, SkipTrue: skipTrue, SkipFalse: skipFalse} - default: - return ri - } - default: - return ri - } - - case opClsReturn: - switch ri.Op { - case opClsReturn | opRetSrcA: - return RetA{} - case opClsReturn | opRetSrcConstant: - return RetConstant{Val: ri.K} - default: - return ri - } - - case opClsMisc: - switch ri.Op { - case opClsMisc | opMiscTAX: - return TAX{} - case opClsMisc | opMiscTXA: - return TXA{} - default: - return ri - } - - default: - panic("unreachable") // switch is exhaustive on the bit pattern - } -} - -func jumpOpToTest(op jumpOp, skipTrue uint8, skipFalse uint8) (JumpTest, uint8, uint8) { - var test JumpTest - - // Decode "fake" jump conditions that don't appear in machine code - // Ensures the Assemble -> Disassemble stage recreates the same instructions - // See https://github.com/golang/go/issues/18470 - if skipTrue == 0 { - switch op { - case opJumpEqual: - test = JumpNotEqual - case opJumpGT: - test = JumpLessOrEqual - case opJumpGE: - test = JumpLessThan - case opJumpSet: - test = JumpBitsNotSet - } - - return test, skipFalse, 0 - } - - switch op { - case opJumpEqual: - test = JumpEqual - case opJumpGT: - test = JumpGreaterThan - case opJumpGE: - test = JumpGreaterOrEqual - case opJumpSet: - test = JumpBitsSet - } - - return test, skipTrue, skipFalse -} - -// LoadConstant loads Val into register Dst. -type LoadConstant struct { - Dst Register - Val uint32 -} - -// Assemble implements the Instruction Assemble method. -func (a LoadConstant) Assemble() (RawInstruction, error) { - return assembleLoad(a.Dst, 4, opAddrModeImmediate, a.Val) -} - -// String returns the instruction in assembler notation. -func (a LoadConstant) String() string { - switch a.Dst { - case RegA: - return fmt.Sprintf("ld #%d", a.Val) - case RegX: - return fmt.Sprintf("ldx #%d", a.Val) - default: - return fmt.Sprintf("unknown instruction: %#v", a) - } -} - -// LoadScratch loads scratch[N] into register Dst. -type LoadScratch struct { - Dst Register - N int // 0-15 -} - -// Assemble implements the Instruction Assemble method. -func (a LoadScratch) Assemble() (RawInstruction, error) { - if a.N < 0 || a.N > 15 { - return RawInstruction{}, fmt.Errorf("invalid scratch slot %d", a.N) - } - return assembleLoad(a.Dst, 4, opAddrModeScratch, uint32(a.N)) -} - -// String returns the instruction in assembler notation. -func (a LoadScratch) String() string { - switch a.Dst { - case RegA: - return fmt.Sprintf("ld M[%d]", a.N) - case RegX: - return fmt.Sprintf("ldx M[%d]", a.N) - default: - return fmt.Sprintf("unknown instruction: %#v", a) - } -} - -// LoadAbsolute loads packet[Off:Off+Size] as an integer value into -// register A. -type LoadAbsolute struct { - Off uint32 - Size int // 1, 2 or 4 -} - -// Assemble implements the Instruction Assemble method. -func (a LoadAbsolute) Assemble() (RawInstruction, error) { - return assembleLoad(RegA, a.Size, opAddrModeAbsolute, a.Off) -} - -// String returns the instruction in assembler notation. -func (a LoadAbsolute) String() string { - switch a.Size { - case 1: // byte - return fmt.Sprintf("ldb [%d]", a.Off) - case 2: // half word - return fmt.Sprintf("ldh [%d]", a.Off) - case 4: // word - if a.Off > extOffset+0xffffffff { - return LoadExtension{Num: Extension(a.Off + 0x1000)}.String() - } - return fmt.Sprintf("ld [%d]", a.Off) - default: - return fmt.Sprintf("unknown instruction: %#v", a) - } -} - -// LoadIndirect loads packet[X+Off:X+Off+Size] as an integer value -// into register A. -type LoadIndirect struct { - Off uint32 - Size int // 1, 2 or 4 -} - -// Assemble implements the Instruction Assemble method. -func (a LoadIndirect) Assemble() (RawInstruction, error) { - return assembleLoad(RegA, a.Size, opAddrModeIndirect, a.Off) -} - -// String returns the instruction in assembler notation. -func (a LoadIndirect) String() string { - switch a.Size { - case 1: // byte - return fmt.Sprintf("ldb [x + %d]", a.Off) - case 2: // half word - return fmt.Sprintf("ldh [x + %d]", a.Off) - case 4: // word - return fmt.Sprintf("ld [x + %d]", a.Off) - default: - return fmt.Sprintf("unknown instruction: %#v", a) - } -} - -// LoadMemShift multiplies the first 4 bits of the byte at packet[Off] -// by 4 and stores the result in register X. -// -// This instruction is mainly useful to load into X the length of an -// IPv4 packet header in a single instruction, rather than have to do -// the arithmetic on the header's first byte by hand. -type LoadMemShift struct { - Off uint32 -} - -// Assemble implements the Instruction Assemble method. -func (a LoadMemShift) Assemble() (RawInstruction, error) { - return assembleLoad(RegX, 1, opAddrModeMemShift, a.Off) -} - -// String returns the instruction in assembler notation. -func (a LoadMemShift) String() string { - return fmt.Sprintf("ldx 4*([%d]&0xf)", a.Off) -} - -// LoadExtension invokes a linux-specific extension and stores the -// result in register A. -type LoadExtension struct { - Num Extension -} - -// Assemble implements the Instruction Assemble method. -func (a LoadExtension) Assemble() (RawInstruction, error) { - if a.Num == ExtLen { - return assembleLoad(RegA, 4, opAddrModePacketLen, 0) - } - return assembleLoad(RegA, 4, opAddrModeAbsolute, uint32(extOffset+a.Num)) -} - -// String returns the instruction in assembler notation. -func (a LoadExtension) String() string { - switch a.Num { - case ExtLen: - return "ld #len" - case ExtProto: - return "ld #proto" - case ExtType: - return "ld #type" - case ExtPayloadOffset: - return "ld #poff" - case ExtInterfaceIndex: - return "ld #ifidx" - case ExtNetlinkAttr: - return "ld #nla" - case ExtNetlinkAttrNested: - return "ld #nlan" - case ExtMark: - return "ld #mark" - case ExtQueue: - return "ld #queue" - case ExtLinkLayerType: - return "ld #hatype" - case ExtRXHash: - return "ld #rxhash" - case ExtCPUID: - return "ld #cpu" - case ExtVLANTag: - return "ld #vlan_tci" - case ExtVLANTagPresent: - return "ld #vlan_avail" - case ExtVLANProto: - return "ld #vlan_tpid" - case ExtRand: - return "ld #rand" - default: - return fmt.Sprintf("unknown instruction: %#v", a) - } -} - -// StoreScratch stores register Src into scratch[N]. -type StoreScratch struct { - Src Register - N int // 0-15 -} - -// Assemble implements the Instruction Assemble method. -func (a StoreScratch) Assemble() (RawInstruction, error) { - if a.N < 0 || a.N > 15 { - return RawInstruction{}, fmt.Errorf("invalid scratch slot %d", a.N) - } - var op uint16 - switch a.Src { - case RegA: - op = opClsStoreA - case RegX: - op = opClsStoreX - default: - return RawInstruction{}, fmt.Errorf("invalid source register %v", a.Src) - } - - return RawInstruction{ - Op: op, - K: uint32(a.N), - }, nil -} - -// String returns the instruction in assembler notation. -func (a StoreScratch) String() string { - switch a.Src { - case RegA: - return fmt.Sprintf("st M[%d]", a.N) - case RegX: - return fmt.Sprintf("stx M[%d]", a.N) - default: - return fmt.Sprintf("unknown instruction: %#v", a) - } -} - -// ALUOpConstant executes A = A Val. -type ALUOpConstant struct { - Op ALUOp - Val uint32 -} - -// Assemble implements the Instruction Assemble method. -func (a ALUOpConstant) Assemble() (RawInstruction, error) { - return RawInstruction{ - Op: opClsALU | uint16(opOperandConstant) | uint16(a.Op), - K: a.Val, - }, nil -} - -// String returns the instruction in assembler notation. -func (a ALUOpConstant) String() string { - switch a.Op { - case ALUOpAdd: - return fmt.Sprintf("add #%d", a.Val) - case ALUOpSub: - return fmt.Sprintf("sub #%d", a.Val) - case ALUOpMul: - return fmt.Sprintf("mul #%d", a.Val) - case ALUOpDiv: - return fmt.Sprintf("div #%d", a.Val) - case ALUOpMod: - return fmt.Sprintf("mod #%d", a.Val) - case ALUOpAnd: - return fmt.Sprintf("and #%d", a.Val) - case ALUOpOr: - return fmt.Sprintf("or #%d", a.Val) - case ALUOpXor: - return fmt.Sprintf("xor #%d", a.Val) - case ALUOpShiftLeft: - return fmt.Sprintf("lsh #%d", a.Val) - case ALUOpShiftRight: - return fmt.Sprintf("rsh #%d", a.Val) - default: - return fmt.Sprintf("unknown instruction: %#v", a) - } -} - -// ALUOpX executes A = A X -type ALUOpX struct { - Op ALUOp -} - -// Assemble implements the Instruction Assemble method. -func (a ALUOpX) Assemble() (RawInstruction, error) { - return RawInstruction{ - Op: opClsALU | uint16(opOperandX) | uint16(a.Op), - }, nil -} - -// String returns the instruction in assembler notation. -func (a ALUOpX) String() string { - switch a.Op { - case ALUOpAdd: - return "add x" - case ALUOpSub: - return "sub x" - case ALUOpMul: - return "mul x" - case ALUOpDiv: - return "div x" - case ALUOpMod: - return "mod x" - case ALUOpAnd: - return "and x" - case ALUOpOr: - return "or x" - case ALUOpXor: - return "xor x" - case ALUOpShiftLeft: - return "lsh x" - case ALUOpShiftRight: - return "rsh x" - default: - return fmt.Sprintf("unknown instruction: %#v", a) - } -} - -// NegateA executes A = -A. -type NegateA struct{} - -// Assemble implements the Instruction Assemble method. -func (a NegateA) Assemble() (RawInstruction, error) { - return RawInstruction{ - Op: opClsALU | uint16(aluOpNeg), - }, nil -} - -// String returns the instruction in assembler notation. -func (a NegateA) String() string { - return fmt.Sprintf("neg") -} - -// Jump skips the following Skip instructions in the program. -type Jump struct { - Skip uint32 -} - -// Assemble implements the Instruction Assemble method. -func (a Jump) Assemble() (RawInstruction, error) { - return RawInstruction{ - Op: opClsJump | uint16(opJumpAlways), - K: a.Skip, - }, nil -} - -// String returns the instruction in assembler notation. -func (a Jump) String() string { - return fmt.Sprintf("ja %d", a.Skip) -} - -// JumpIf skips the following Skip instructions in the program if A -// Val is true. -type JumpIf struct { - Cond JumpTest - Val uint32 - SkipTrue uint8 - SkipFalse uint8 -} - -// Assemble implements the Instruction Assemble method. -func (a JumpIf) Assemble() (RawInstruction, error) { - return jumpToRaw(a.Cond, opOperandConstant, a.Val, a.SkipTrue, a.SkipFalse) -} - -// String returns the instruction in assembler notation. -func (a JumpIf) String() string { - return jumpToString(a.Cond, fmt.Sprintf("#%d", a.Val), a.SkipTrue, a.SkipFalse) -} - -// JumpIfX skips the following Skip instructions in the program if A -// X is true. -type JumpIfX struct { - Cond JumpTest - SkipTrue uint8 - SkipFalse uint8 -} - -// Assemble implements the Instruction Assemble method. -func (a JumpIfX) Assemble() (RawInstruction, error) { - return jumpToRaw(a.Cond, opOperandX, 0, a.SkipTrue, a.SkipFalse) -} - -// String returns the instruction in assembler notation. -func (a JumpIfX) String() string { - return jumpToString(a.Cond, "x", a.SkipTrue, a.SkipFalse) -} - -// jumpToRaw assembles a jump instruction into a RawInstruction -func jumpToRaw(test JumpTest, operand opOperand, k uint32, skipTrue, skipFalse uint8) (RawInstruction, error) { - var ( - cond jumpOp - flip bool - ) - switch test { - case JumpEqual: - cond = opJumpEqual - case JumpNotEqual: - cond, flip = opJumpEqual, true - case JumpGreaterThan: - cond = opJumpGT - case JumpLessThan: - cond, flip = opJumpGE, true - case JumpGreaterOrEqual: - cond = opJumpGE - case JumpLessOrEqual: - cond, flip = opJumpGT, true - case JumpBitsSet: - cond = opJumpSet - case JumpBitsNotSet: - cond, flip = opJumpSet, true - default: - return RawInstruction{}, fmt.Errorf("unknown JumpTest %v", test) - } - jt, jf := skipTrue, skipFalse - if flip { - jt, jf = jf, jt - } - return RawInstruction{ - Op: opClsJump | uint16(cond) | uint16(operand), - Jt: jt, - Jf: jf, - K: k, - }, nil -} - -// jumpToString converts a jump instruction to assembler notation -func jumpToString(cond JumpTest, operand string, skipTrue, skipFalse uint8) string { - switch cond { - // K == A - case JumpEqual: - return conditionalJump(operand, skipTrue, skipFalse, "jeq", "jneq") - // K != A - case JumpNotEqual: - return fmt.Sprintf("jneq %s,%d", operand, skipTrue) - // K > A - case JumpGreaterThan: - return conditionalJump(operand, skipTrue, skipFalse, "jgt", "jle") - // K < A - case JumpLessThan: - return fmt.Sprintf("jlt %s,%d", operand, skipTrue) - // K >= A - case JumpGreaterOrEqual: - return conditionalJump(operand, skipTrue, skipFalse, "jge", "jlt") - // K <= A - case JumpLessOrEqual: - return fmt.Sprintf("jle %s,%d", operand, skipTrue) - // K & A != 0 - case JumpBitsSet: - if skipFalse > 0 { - return fmt.Sprintf("jset %s,%d,%d", operand, skipTrue, skipFalse) - } - return fmt.Sprintf("jset %s,%d", operand, skipTrue) - // K & A == 0, there is no assembler instruction for JumpBitNotSet, use JumpBitSet and invert skips - case JumpBitsNotSet: - return jumpToString(JumpBitsSet, operand, skipFalse, skipTrue) - default: - return fmt.Sprintf("unknown JumpTest %#v", cond) - } -} - -func conditionalJump(operand string, skipTrue, skipFalse uint8, positiveJump, negativeJump string) string { - if skipTrue > 0 { - if skipFalse > 0 { - return fmt.Sprintf("%s %s,%d,%d", positiveJump, operand, skipTrue, skipFalse) - } - return fmt.Sprintf("%s %s,%d", positiveJump, operand, skipTrue) - } - return fmt.Sprintf("%s %s,%d", negativeJump, operand, skipFalse) -} - -// RetA exits the BPF program, returning the value of register A. -type RetA struct{} - -// Assemble implements the Instruction Assemble method. -func (a RetA) Assemble() (RawInstruction, error) { - return RawInstruction{ - Op: opClsReturn | opRetSrcA, - }, nil -} - -// String returns the instruction in assembler notation. -func (a RetA) String() string { - return fmt.Sprintf("ret a") -} - -// RetConstant exits the BPF program, returning a constant value. -type RetConstant struct { - Val uint32 -} - -// Assemble implements the Instruction Assemble method. -func (a RetConstant) Assemble() (RawInstruction, error) { - return RawInstruction{ - Op: opClsReturn | opRetSrcConstant, - K: a.Val, - }, nil -} - -// String returns the instruction in assembler notation. -func (a RetConstant) String() string { - return fmt.Sprintf("ret #%d", a.Val) -} - -// TXA copies the value of register X to register A. -type TXA struct{} - -// Assemble implements the Instruction Assemble method. -func (a TXA) Assemble() (RawInstruction, error) { - return RawInstruction{ - Op: opClsMisc | opMiscTXA, - }, nil -} - -// String returns the instruction in assembler notation. -func (a TXA) String() string { - return fmt.Sprintf("txa") -} - -// TAX copies the value of register A to register X. -type TAX struct{} - -// Assemble implements the Instruction Assemble method. -func (a TAX) Assemble() (RawInstruction, error) { - return RawInstruction{ - Op: opClsMisc | opMiscTAX, - }, nil -} - -// String returns the instruction in assembler notation. -func (a TAX) String() string { - return fmt.Sprintf("tax") -} - -func assembleLoad(dst Register, loadSize int, mode uint16, k uint32) (RawInstruction, error) { - var ( - cls uint16 - sz uint16 - ) - switch dst { - case RegA: - cls = opClsLoadA - case RegX: - cls = opClsLoadX - default: - return RawInstruction{}, fmt.Errorf("invalid target register %v", dst) - } - switch loadSize { - case 1: - sz = opLoadWidth1 - case 2: - sz = opLoadWidth2 - case 4: - sz = opLoadWidth4 - default: - return RawInstruction{}, fmt.Errorf("invalid load byte length %d", sz) - } - return RawInstruction{ - Op: cls | sz | mode, - K: k, - }, nil -} diff --git a/vendor/golang.org/x/net/bpf/setter.go b/vendor/golang.org/x/net/bpf/setter.go deleted file mode 100644 index 43e35f0ac2..0000000000 --- a/vendor/golang.org/x/net/bpf/setter.go +++ /dev/null @@ -1,10 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package bpf - -// A Setter is a type which can attach a compiled BPF filter to itself. -type Setter interface { - SetBPF(filter []RawInstruction) error -} diff --git a/vendor/golang.org/x/net/bpf/vm.go b/vendor/golang.org/x/net/bpf/vm.go deleted file mode 100644 index 73f57f1f72..0000000000 --- a/vendor/golang.org/x/net/bpf/vm.go +++ /dev/null @@ -1,150 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package bpf - -import ( - "errors" - "fmt" -) - -// A VM is an emulated BPF virtual machine. -type VM struct { - filter []Instruction -} - -// NewVM returns a new VM using the input BPF program. -func NewVM(filter []Instruction) (*VM, error) { - if len(filter) == 0 { - return nil, errors.New("one or more Instructions must be specified") - } - - for i, ins := range filter { - check := len(filter) - (i + 1) - switch ins := ins.(type) { - // Check for out-of-bounds jumps in instructions - case Jump: - if check <= int(ins.Skip) { - return nil, fmt.Errorf("cannot jump %d instructions; jumping past program bounds", ins.Skip) - } - case JumpIf: - if check <= int(ins.SkipTrue) { - return nil, fmt.Errorf("cannot jump %d instructions in true case; jumping past program bounds", ins.SkipTrue) - } - if check <= int(ins.SkipFalse) { - return nil, fmt.Errorf("cannot jump %d instructions in false case; jumping past program bounds", ins.SkipFalse) - } - case JumpIfX: - if check <= int(ins.SkipTrue) { - return nil, fmt.Errorf("cannot jump %d instructions in true case; jumping past program bounds", ins.SkipTrue) - } - if check <= int(ins.SkipFalse) { - return nil, fmt.Errorf("cannot jump %d instructions in false case; jumping past program bounds", ins.SkipFalse) - } - // Check for division or modulus by zero - case ALUOpConstant: - if ins.Val != 0 { - break - } - - switch ins.Op { - case ALUOpDiv, ALUOpMod: - return nil, errors.New("cannot divide by zero using ALUOpConstant") - } - // Check for unknown extensions - case LoadExtension: - switch ins.Num { - case ExtLen: - default: - return nil, fmt.Errorf("extension %d not implemented", ins.Num) - } - } - } - - // Make sure last instruction is a return instruction - switch filter[len(filter)-1].(type) { - case RetA, RetConstant: - default: - return nil, errors.New("BPF program must end with RetA or RetConstant") - } - - // Though our VM works using disassembled instructions, we - // attempt to assemble the input filter anyway to ensure it is compatible - // with an operating system VM. - _, err := Assemble(filter) - - return &VM{ - filter: filter, - }, err -} - -// Run runs the VM's BPF program against the input bytes. -// Run returns the number of bytes accepted by the BPF program, and any errors -// which occurred while processing the program. -func (v *VM) Run(in []byte) (int, error) { - var ( - // Registers of the virtual machine - regA uint32 - regX uint32 - regScratch [16]uint32 - - // OK is true if the program should continue processing the next - // instruction, or false if not, causing the loop to break - ok = true - ) - - // TODO(mdlayher): implement: - // - NegateA: - // - would require a change from uint32 registers to int32 - // registers - - // TODO(mdlayher): add interop tests that check signedness of ALU - // operations against kernel implementation, and make sure Go - // implementation matches behavior - - for i := 0; i < len(v.filter) && ok; i++ { - ins := v.filter[i] - - switch ins := ins.(type) { - case ALUOpConstant: - regA = aluOpConstant(ins, regA) - case ALUOpX: - regA, ok = aluOpX(ins, regA, regX) - case Jump: - i += int(ins.Skip) - case JumpIf: - jump := jumpIf(ins, regA) - i += jump - case JumpIfX: - jump := jumpIfX(ins, regA, regX) - i += jump - case LoadAbsolute: - regA, ok = loadAbsolute(ins, in) - case LoadConstant: - regA, regX = loadConstant(ins, regA, regX) - case LoadExtension: - regA = loadExtension(ins, in) - case LoadIndirect: - regA, ok = loadIndirect(ins, in, regX) - case LoadMemShift: - regX, ok = loadMemShift(ins, in) - case LoadScratch: - regA, regX = loadScratch(ins, regScratch, regA, regX) - case RetA: - return int(regA), nil - case RetConstant: - return int(ins.Val), nil - case StoreScratch: - regScratch = storeScratch(ins, regScratch, regA, regX) - case TAX: - regX = regA - case TXA: - regA = regX - default: - return 0, fmt.Errorf("unknown Instruction at index %d: %T", i, ins) - } - } - - return 0, nil -} diff --git a/vendor/golang.org/x/net/bpf/vm_instructions.go b/vendor/golang.org/x/net/bpf/vm_instructions.go deleted file mode 100644 index 0aa307c061..0000000000 --- a/vendor/golang.org/x/net/bpf/vm_instructions.go +++ /dev/null @@ -1,182 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package bpf - -import ( - "encoding/binary" - "fmt" -) - -func aluOpConstant(ins ALUOpConstant, regA uint32) uint32 { - return aluOpCommon(ins.Op, regA, ins.Val) -} - -func aluOpX(ins ALUOpX, regA uint32, regX uint32) (uint32, bool) { - // Guard against division or modulus by zero by terminating - // the program, as the OS BPF VM does - if regX == 0 { - switch ins.Op { - case ALUOpDiv, ALUOpMod: - return 0, false - } - } - - return aluOpCommon(ins.Op, regA, regX), true -} - -func aluOpCommon(op ALUOp, regA uint32, value uint32) uint32 { - switch op { - case ALUOpAdd: - return regA + value - case ALUOpSub: - return regA - value - case ALUOpMul: - return regA * value - case ALUOpDiv: - // Division by zero not permitted by NewVM and aluOpX checks - return regA / value - case ALUOpOr: - return regA | value - case ALUOpAnd: - return regA & value - case ALUOpShiftLeft: - return regA << value - case ALUOpShiftRight: - return regA >> value - case ALUOpMod: - // Modulus by zero not permitted by NewVM and aluOpX checks - return regA % value - case ALUOpXor: - return regA ^ value - default: - return regA - } -} - -func jumpIf(ins JumpIf, regA uint32) int { - return jumpIfCommon(ins.Cond, ins.SkipTrue, ins.SkipFalse, regA, ins.Val) -} - -func jumpIfX(ins JumpIfX, regA uint32, regX uint32) int { - return jumpIfCommon(ins.Cond, ins.SkipTrue, ins.SkipFalse, regA, regX) -} - -func jumpIfCommon(cond JumpTest, skipTrue, skipFalse uint8, regA uint32, value uint32) int { - var ok bool - - switch cond { - case JumpEqual: - ok = regA == value - case JumpNotEqual: - ok = regA != value - case JumpGreaterThan: - ok = regA > value - case JumpLessThan: - ok = regA < value - case JumpGreaterOrEqual: - ok = regA >= value - case JumpLessOrEqual: - ok = regA <= value - case JumpBitsSet: - ok = (regA & value) != 0 - case JumpBitsNotSet: - ok = (regA & value) == 0 - } - - if ok { - return int(skipTrue) - } - - return int(skipFalse) -} - -func loadAbsolute(ins LoadAbsolute, in []byte) (uint32, bool) { - offset := int(ins.Off) - size := ins.Size - - return loadCommon(in, offset, size) -} - -func loadConstant(ins LoadConstant, regA uint32, regX uint32) (uint32, uint32) { - switch ins.Dst { - case RegA: - regA = ins.Val - case RegX: - regX = ins.Val - } - - return regA, regX -} - -func loadExtension(ins LoadExtension, in []byte) uint32 { - switch ins.Num { - case ExtLen: - return uint32(len(in)) - default: - panic(fmt.Sprintf("unimplemented extension: %d", ins.Num)) - } -} - -func loadIndirect(ins LoadIndirect, in []byte, regX uint32) (uint32, bool) { - offset := int(ins.Off) + int(regX) - size := ins.Size - - return loadCommon(in, offset, size) -} - -func loadMemShift(ins LoadMemShift, in []byte) (uint32, bool) { - offset := int(ins.Off) - - // Size of LoadMemShift is always 1 byte - if !inBounds(len(in), offset, 1) { - return 0, false - } - - // Mask off high 4 bits and multiply low 4 bits by 4 - return uint32(in[offset]&0x0f) * 4, true -} - -func inBounds(inLen int, offset int, size int) bool { - return offset+size <= inLen -} - -func loadCommon(in []byte, offset int, size int) (uint32, bool) { - if !inBounds(len(in), offset, size) { - return 0, false - } - - switch size { - case 1: - return uint32(in[offset]), true - case 2: - return uint32(binary.BigEndian.Uint16(in[offset : offset+size])), true - case 4: - return uint32(binary.BigEndian.Uint32(in[offset : offset+size])), true - default: - panic(fmt.Sprintf("invalid load size: %d", size)) - } -} - -func loadScratch(ins LoadScratch, regScratch [16]uint32, regA uint32, regX uint32) (uint32, uint32) { - switch ins.Dst { - case RegA: - regA = regScratch[ins.N] - case RegX: - regX = regScratch[ins.N] - } - - return regA, regX -} - -func storeScratch(ins StoreScratch, regScratch [16]uint32, regA uint32, regX uint32) [16]uint32 { - switch ins.Src { - case RegA: - regScratch[ins.N] = regA - case RegX: - regScratch[ins.N] = regX - } - - return regScratch -} diff --git a/vendor/golang.org/x/net/internal/iana/const.go b/vendor/golang.org/x/net/internal/iana/const.go deleted file mode 100644 index cea712fac0..0000000000 --- a/vendor/golang.org/x/net/internal/iana/const.go +++ /dev/null @@ -1,223 +0,0 @@ -// go generate gen.go -// Code generated by the command above; DO NOT EDIT. - -// Package iana provides protocol number resources managed by the Internet Assigned Numbers Authority (IANA). -package iana // import "golang.org/x/net/internal/iana" - -// Differentiated Services Field Codepoints (DSCP), Updated: 2018-05-04 -const ( - DiffServCS0 = 0x00 // CS0 - DiffServCS1 = 0x20 // CS1 - DiffServCS2 = 0x40 // CS2 - DiffServCS3 = 0x60 // CS3 - DiffServCS4 = 0x80 // CS4 - DiffServCS5 = 0xa0 // CS5 - DiffServCS6 = 0xc0 // CS6 - DiffServCS7 = 0xe0 // CS7 - DiffServAF11 = 0x28 // AF11 - DiffServAF12 = 0x30 // AF12 - DiffServAF13 = 0x38 // AF13 - DiffServAF21 = 0x48 // AF21 - DiffServAF22 = 0x50 // AF22 - DiffServAF23 = 0x58 // AF23 - DiffServAF31 = 0x68 // AF31 - DiffServAF32 = 0x70 // AF32 - DiffServAF33 = 0x78 // AF33 - DiffServAF41 = 0x88 // AF41 - DiffServAF42 = 0x90 // AF42 - DiffServAF43 = 0x98 // AF43 - DiffServEF = 0xb8 // EF - DiffServVOICEADMIT = 0xb0 // VOICE-ADMIT - NotECNTransport = 0x00 // Not-ECT (Not ECN-Capable Transport) - ECNTransport1 = 0x01 // ECT(1) (ECN-Capable Transport(1)) - ECNTransport0 = 0x02 // ECT(0) (ECN-Capable Transport(0)) - CongestionExperienced = 0x03 // CE (Congestion Experienced) -) - -// Protocol Numbers, Updated: 2017-10-13 -const ( - ProtocolIP = 0 // IPv4 encapsulation, pseudo protocol number - ProtocolHOPOPT = 0 // IPv6 Hop-by-Hop Option - ProtocolICMP = 1 // Internet Control Message - ProtocolIGMP = 2 // Internet Group Management - ProtocolGGP = 3 // Gateway-to-Gateway - ProtocolIPv4 = 4 // IPv4 encapsulation - ProtocolST = 5 // Stream - ProtocolTCP = 6 // Transmission Control - ProtocolCBT = 7 // CBT - ProtocolEGP = 8 // Exterior Gateway Protocol - ProtocolIGP = 9 // any private interior gateway (used by Cisco for their IGRP) - ProtocolBBNRCCMON = 10 // BBN RCC Monitoring - ProtocolNVPII = 11 // Network Voice Protocol - ProtocolPUP = 12 // PUP - ProtocolEMCON = 14 // EMCON - ProtocolXNET = 15 // Cross Net Debugger - ProtocolCHAOS = 16 // Chaos - ProtocolUDP = 17 // User Datagram - ProtocolMUX = 18 // Multiplexing - ProtocolDCNMEAS = 19 // DCN Measurement Subsystems - ProtocolHMP = 20 // Host Monitoring - ProtocolPRM = 21 // Packet Radio Measurement - ProtocolXNSIDP = 22 // XEROX NS IDP - ProtocolTRUNK1 = 23 // Trunk-1 - ProtocolTRUNK2 = 24 // Trunk-2 - ProtocolLEAF1 = 25 // Leaf-1 - ProtocolLEAF2 = 26 // Leaf-2 - ProtocolRDP = 27 // Reliable Data Protocol - ProtocolIRTP = 28 // Internet Reliable Transaction - ProtocolISOTP4 = 29 // ISO Transport Protocol Class 4 - ProtocolNETBLT = 30 // Bulk Data Transfer Protocol - ProtocolMFENSP = 31 // MFE Network Services Protocol - ProtocolMERITINP = 32 // MERIT Internodal Protocol - ProtocolDCCP = 33 // Datagram Congestion Control Protocol - Protocol3PC = 34 // Third Party Connect Protocol - ProtocolIDPR = 35 // Inter-Domain Policy Routing Protocol - ProtocolXTP = 36 // XTP - ProtocolDDP = 37 // Datagram Delivery Protocol - ProtocolIDPRCMTP = 38 // IDPR Control Message Transport Proto - ProtocolTPPP = 39 // TP++ Transport Protocol - ProtocolIL = 40 // IL Transport Protocol - ProtocolIPv6 = 41 // IPv6 encapsulation - ProtocolSDRP = 42 // Source Demand Routing Protocol - ProtocolIPv6Route = 43 // Routing Header for IPv6 - ProtocolIPv6Frag = 44 // Fragment Header for IPv6 - ProtocolIDRP = 45 // Inter-Domain Routing Protocol - ProtocolRSVP = 46 // Reservation Protocol - ProtocolGRE = 47 // Generic Routing Encapsulation - ProtocolDSR = 48 // Dynamic Source Routing Protocol - ProtocolBNA = 49 // BNA - ProtocolESP = 50 // Encap Security Payload - ProtocolAH = 51 // Authentication Header - ProtocolINLSP = 52 // Integrated Net Layer Security TUBA - ProtocolNARP = 54 // NBMA Address Resolution Protocol - ProtocolMOBILE = 55 // IP Mobility - ProtocolTLSP = 56 // Transport Layer Security Protocol using Kryptonet key management - ProtocolSKIP = 57 // SKIP - ProtocolIPv6ICMP = 58 // ICMP for IPv6 - ProtocolIPv6NoNxt = 59 // No Next Header for IPv6 - ProtocolIPv6Opts = 60 // Destination Options for IPv6 - ProtocolCFTP = 62 // CFTP - ProtocolSATEXPAK = 64 // SATNET and Backroom EXPAK - ProtocolKRYPTOLAN = 65 // Kryptolan - ProtocolRVD = 66 // MIT Remote Virtual Disk Protocol - ProtocolIPPC = 67 // Internet Pluribus Packet Core - ProtocolSATMON = 69 // SATNET Monitoring - ProtocolVISA = 70 // VISA Protocol - ProtocolIPCV = 71 // Internet Packet Core Utility - ProtocolCPNX = 72 // Computer Protocol Network Executive - ProtocolCPHB = 73 // Computer Protocol Heart Beat - ProtocolWSN = 74 // Wang Span Network - ProtocolPVP = 75 // Packet Video Protocol - ProtocolBRSATMON = 76 // Backroom SATNET Monitoring - ProtocolSUNND = 77 // SUN ND PROTOCOL-Temporary - ProtocolWBMON = 78 // WIDEBAND Monitoring - ProtocolWBEXPAK = 79 // WIDEBAND EXPAK - ProtocolISOIP = 80 // ISO Internet Protocol - ProtocolVMTP = 81 // VMTP - ProtocolSECUREVMTP = 82 // SECURE-VMTP - ProtocolVINES = 83 // VINES - ProtocolTTP = 84 // Transaction Transport Protocol - ProtocolIPTM = 84 // Internet Protocol Traffic Manager - ProtocolNSFNETIGP = 85 // NSFNET-IGP - ProtocolDGP = 86 // Dissimilar Gateway Protocol - ProtocolTCF = 87 // TCF - ProtocolEIGRP = 88 // EIGRP - ProtocolOSPFIGP = 89 // OSPFIGP - ProtocolSpriteRPC = 90 // Sprite RPC Protocol - ProtocolLARP = 91 // Locus Address Resolution Protocol - ProtocolMTP = 92 // Multicast Transport Protocol - ProtocolAX25 = 93 // AX.25 Frames - ProtocolIPIP = 94 // IP-within-IP Encapsulation Protocol - ProtocolSCCSP = 96 // Semaphore Communications Sec. Pro. - ProtocolETHERIP = 97 // Ethernet-within-IP Encapsulation - ProtocolENCAP = 98 // Encapsulation Header - ProtocolGMTP = 100 // GMTP - ProtocolIFMP = 101 // Ipsilon Flow Management Protocol - ProtocolPNNI = 102 // PNNI over IP - ProtocolPIM = 103 // Protocol Independent Multicast - ProtocolARIS = 104 // ARIS - ProtocolSCPS = 105 // SCPS - ProtocolQNX = 106 // QNX - ProtocolAN = 107 // Active Networks - ProtocolIPComp = 108 // IP Payload Compression Protocol - ProtocolSNP = 109 // Sitara Networks Protocol - ProtocolCompaqPeer = 110 // Compaq Peer Protocol - ProtocolIPXinIP = 111 // IPX in IP - ProtocolVRRP = 112 // Virtual Router Redundancy Protocol - ProtocolPGM = 113 // PGM Reliable Transport Protocol - ProtocolL2TP = 115 // Layer Two Tunneling Protocol - ProtocolDDX = 116 // D-II Data Exchange (DDX) - ProtocolIATP = 117 // Interactive Agent Transfer Protocol - ProtocolSTP = 118 // Schedule Transfer Protocol - ProtocolSRP = 119 // SpectraLink Radio Protocol - ProtocolUTI = 120 // UTI - ProtocolSMP = 121 // Simple Message Protocol - ProtocolPTP = 123 // Performance Transparency Protocol - ProtocolISIS = 124 // ISIS over IPv4 - ProtocolFIRE = 125 // FIRE - ProtocolCRTP = 126 // Combat Radio Transport Protocol - ProtocolCRUDP = 127 // Combat Radio User Datagram - ProtocolSSCOPMCE = 128 // SSCOPMCE - ProtocolIPLT = 129 // IPLT - ProtocolSPS = 130 // Secure Packet Shield - ProtocolPIPE = 131 // Private IP Encapsulation within IP - ProtocolSCTP = 132 // Stream Control Transmission Protocol - ProtocolFC = 133 // Fibre Channel - ProtocolRSVPE2EIGNORE = 134 // RSVP-E2E-IGNORE - ProtocolMobilityHeader = 135 // Mobility Header - ProtocolUDPLite = 136 // UDPLite - ProtocolMPLSinIP = 137 // MPLS-in-IP - ProtocolMANET = 138 // MANET Protocols - ProtocolHIP = 139 // Host Identity Protocol - ProtocolShim6 = 140 // Shim6 Protocol - ProtocolWESP = 141 // Wrapped Encapsulating Security Payload - ProtocolROHC = 142 // Robust Header Compression - ProtocolReserved = 255 // Reserved -) - -// Address Family Numbers, Updated: 2018-04-02 -const ( - AddrFamilyIPv4 = 1 // IP (IP version 4) - AddrFamilyIPv6 = 2 // IP6 (IP version 6) - AddrFamilyNSAP = 3 // NSAP - AddrFamilyHDLC = 4 // HDLC (8-bit multidrop) - AddrFamilyBBN1822 = 5 // BBN 1822 - AddrFamily802 = 6 // 802 (includes all 802 media plus Ethernet "canonical format") - AddrFamilyE163 = 7 // E.163 - AddrFamilyE164 = 8 // E.164 (SMDS, Frame Relay, ATM) - AddrFamilyF69 = 9 // F.69 (Telex) - AddrFamilyX121 = 10 // X.121 (X.25, Frame Relay) - AddrFamilyIPX = 11 // IPX - AddrFamilyAppletalk = 12 // Appletalk - AddrFamilyDecnetIV = 13 // Decnet IV - AddrFamilyBanyanVines = 14 // Banyan Vines - AddrFamilyE164withSubaddress = 15 // E.164 with NSAP format subaddress - AddrFamilyDNS = 16 // DNS (Domain Name System) - AddrFamilyDistinguishedName = 17 // Distinguished Name - AddrFamilyASNumber = 18 // AS Number - AddrFamilyXTPoverIPv4 = 19 // XTP over IP version 4 - AddrFamilyXTPoverIPv6 = 20 // XTP over IP version 6 - AddrFamilyXTPnativemodeXTP = 21 // XTP native mode XTP - AddrFamilyFibreChannelWorldWidePortName = 22 // Fibre Channel World-Wide Port Name - AddrFamilyFibreChannelWorldWideNodeName = 23 // Fibre Channel World-Wide Node Name - AddrFamilyGWID = 24 // GWID - AddrFamilyL2VPN = 25 // AFI for L2VPN information - AddrFamilyMPLSTPSectionEndpointID = 26 // MPLS-TP Section Endpoint Identifier - AddrFamilyMPLSTPLSPEndpointID = 27 // MPLS-TP LSP Endpoint Identifier - AddrFamilyMPLSTPPseudowireEndpointID = 28 // MPLS-TP Pseudowire Endpoint Identifier - AddrFamilyMTIPv4 = 29 // MT IP: Multi-Topology IP version 4 - AddrFamilyMTIPv6 = 30 // MT IPv6: Multi-Topology IP version 6 - AddrFamilyEIGRPCommonServiceFamily = 16384 // EIGRP Common Service Family - AddrFamilyEIGRPIPv4ServiceFamily = 16385 // EIGRP IPv4 Service Family - AddrFamilyEIGRPIPv6ServiceFamily = 16386 // EIGRP IPv6 Service Family - AddrFamilyLISPCanonicalAddressFormat = 16387 // LISP Canonical Address Format (LCAF) - AddrFamilyBGPLS = 16388 // BGP-LS - AddrFamily48bitMAC = 16389 // 48-bit MAC - AddrFamily64bitMAC = 16390 // 64-bit MAC - AddrFamilyOUI = 16391 // OUI - AddrFamilyMACFinal24bits = 16392 // MAC/24 - AddrFamilyMACFinal40bits = 16393 // MAC/40 - AddrFamilyIPv6Initial64bits = 16394 // IPv6/64 - AddrFamilyRBridgePortID = 16395 // RBridge Port ID - AddrFamilyTRILLNickname = 16396 // TRILL Nickname -) diff --git a/vendor/golang.org/x/net/internal/socket/cmsghdr.go b/vendor/golang.org/x/net/internal/socket/cmsghdr.go deleted file mode 100644 index 33a5bf59c3..0000000000 --- a/vendor/golang.org/x/net/internal/socket/cmsghdr.go +++ /dev/null @@ -1,11 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos - -package socket - -func (h *cmsghdr) len() int { return int(h.Len) } -func (h *cmsghdr) lvl() int { return int(h.Level) } -func (h *cmsghdr) typ() int { return int(h.Type) } diff --git a/vendor/golang.org/x/net/internal/socket/cmsghdr_bsd.go b/vendor/golang.org/x/net/internal/socket/cmsghdr_bsd.go deleted file mode 100644 index 68f438c845..0000000000 --- a/vendor/golang.org/x/net/internal/socket/cmsghdr_bsd.go +++ /dev/null @@ -1,13 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || netbsd || openbsd - -package socket - -func (h *cmsghdr) set(l, lvl, typ int) { - h.Len = uint32(l) - h.Level = int32(lvl) - h.Type = int32(typ) -} diff --git a/vendor/golang.org/x/net/internal/socket/cmsghdr_linux_32bit.go b/vendor/golang.org/x/net/internal/socket/cmsghdr_linux_32bit.go deleted file mode 100644 index 058ea8de89..0000000000 --- a/vendor/golang.org/x/net/internal/socket/cmsghdr_linux_32bit.go +++ /dev/null @@ -1,13 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build (arm || mips || mipsle || 386 || ppc) && linux - -package socket - -func (h *cmsghdr) set(l, lvl, typ int) { - h.Len = uint32(l) - h.Level = int32(lvl) - h.Type = int32(typ) -} diff --git a/vendor/golang.org/x/net/internal/socket/cmsghdr_linux_64bit.go b/vendor/golang.org/x/net/internal/socket/cmsghdr_linux_64bit.go deleted file mode 100644 index 3ca0d3a0ab..0000000000 --- a/vendor/golang.org/x/net/internal/socket/cmsghdr_linux_64bit.go +++ /dev/null @@ -1,13 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build (arm64 || amd64 || loong64 || ppc64 || ppc64le || mips64 || mips64le || riscv64 || s390x) && linux - -package socket - -func (h *cmsghdr) set(l, lvl, typ int) { - h.Len = uint64(l) - h.Level = int32(lvl) - h.Type = int32(typ) -} diff --git a/vendor/golang.org/x/net/internal/socket/cmsghdr_solaris_64bit.go b/vendor/golang.org/x/net/internal/socket/cmsghdr_solaris_64bit.go deleted file mode 100644 index 6d0e426cdd..0000000000 --- a/vendor/golang.org/x/net/internal/socket/cmsghdr_solaris_64bit.go +++ /dev/null @@ -1,13 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build amd64 && solaris - -package socket - -func (h *cmsghdr) set(l, lvl, typ int) { - h.Len = uint32(l) - h.Level = int32(lvl) - h.Type = int32(typ) -} diff --git a/vendor/golang.org/x/net/internal/socket/cmsghdr_stub.go b/vendor/golang.org/x/net/internal/socket/cmsghdr_stub.go deleted file mode 100644 index 7ca9cb7e78..0000000000 --- a/vendor/golang.org/x/net/internal/socket/cmsghdr_stub.go +++ /dev/null @@ -1,27 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !zos - -package socket - -func controlHeaderLen() int { - return 0 -} - -func controlMessageLen(dataLen int) int { - return 0 -} - -func controlMessageSpace(dataLen int) int { - return 0 -} - -type cmsghdr struct{} - -func (h *cmsghdr) len() int { return 0 } -func (h *cmsghdr) lvl() int { return 0 } -func (h *cmsghdr) typ() int { return 0 } - -func (h *cmsghdr) set(l, lvl, typ int) {} diff --git a/vendor/golang.org/x/net/internal/socket/cmsghdr_unix.go b/vendor/golang.org/x/net/internal/socket/cmsghdr_unix.go deleted file mode 100644 index 0211f225bf..0000000000 --- a/vendor/golang.org/x/net/internal/socket/cmsghdr_unix.go +++ /dev/null @@ -1,21 +0,0 @@ -// Copyright 2020 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos - -package socket - -import "golang.org/x/sys/unix" - -func controlHeaderLen() int { - return unix.CmsgLen(0) -} - -func controlMessageLen(dataLen int) int { - return unix.CmsgLen(dataLen) -} - -func controlMessageSpace(dataLen int) int { - return unix.CmsgSpace(dataLen) -} diff --git a/vendor/golang.org/x/net/internal/socket/cmsghdr_zos_s390x.go b/vendor/golang.org/x/net/internal/socket/cmsghdr_zos_s390x.go deleted file mode 100644 index 68dc8ad638..0000000000 --- a/vendor/golang.org/x/net/internal/socket/cmsghdr_zos_s390x.go +++ /dev/null @@ -1,11 +0,0 @@ -// Copyright 2020 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -func (h *cmsghdr) set(l, lvl, typ int) { - h.Len = int32(l) - h.Level = int32(lvl) - h.Type = int32(typ) -} diff --git a/vendor/golang.org/x/net/internal/socket/complete_dontwait.go b/vendor/golang.org/x/net/internal/socket/complete_dontwait.go deleted file mode 100644 index 2038f29043..0000000000 --- a/vendor/golang.org/x/net/internal/socket/complete_dontwait.go +++ /dev/null @@ -1,25 +0,0 @@ -// Copyright 2021 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris - -package socket - -import ( - "syscall" -) - -// ioComplete checks the flags and result of a syscall, to be used as return -// value in a syscall.RawConn.Read or Write callback. -func ioComplete(flags int, operr error) bool { - if flags&syscall.MSG_DONTWAIT != 0 { - // Caller explicitly said don't wait, so always return immediately. - return true - } - if operr == syscall.EAGAIN || operr == syscall.EWOULDBLOCK { - // No data available, block for I/O and try again. - return false - } - return true -} diff --git a/vendor/golang.org/x/net/internal/socket/complete_nodontwait.go b/vendor/golang.org/x/net/internal/socket/complete_nodontwait.go deleted file mode 100644 index 70e6f448b0..0000000000 --- a/vendor/golang.org/x/net/internal/socket/complete_nodontwait.go +++ /dev/null @@ -1,21 +0,0 @@ -// Copyright 2021 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || windows || zos - -package socket - -import ( - "syscall" -) - -// ioComplete checks the flags and result of a syscall, to be used as return -// value in a syscall.RawConn.Read or Write callback. -func ioComplete(flags int, operr error) bool { - if operr == syscall.EAGAIN || operr == syscall.EWOULDBLOCK { - // No data available, block for I/O and try again. - return false - } - return true -} diff --git a/vendor/golang.org/x/net/internal/socket/empty.s b/vendor/golang.org/x/net/internal/socket/empty.s deleted file mode 100644 index c7bde71f13..0000000000 --- a/vendor/golang.org/x/net/internal/socket/empty.s +++ /dev/null @@ -1,7 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build darwin - -// This exists solely so we can linkname in symbols from syscall. diff --git a/vendor/golang.org/x/net/internal/socket/error_unix.go b/vendor/golang.org/x/net/internal/socket/error_unix.go deleted file mode 100644 index 7a5cc5c43e..0000000000 --- a/vendor/golang.org/x/net/internal/socket/error_unix.go +++ /dev/null @@ -1,31 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos - -package socket - -import "syscall" - -var ( - errEAGAIN error = syscall.EAGAIN - errEINVAL error = syscall.EINVAL - errENOENT error = syscall.ENOENT -) - -// errnoErr returns common boxed Errno values, to prevent allocations -// at runtime. -func errnoErr(errno syscall.Errno) error { - switch errno { - case 0: - return nil - case syscall.EAGAIN: - return errEAGAIN - case syscall.EINVAL: - return errEINVAL - case syscall.ENOENT: - return errENOENT - } - return errno -} diff --git a/vendor/golang.org/x/net/internal/socket/error_windows.go b/vendor/golang.org/x/net/internal/socket/error_windows.go deleted file mode 100644 index 6a6379a8b0..0000000000 --- a/vendor/golang.org/x/net/internal/socket/error_windows.go +++ /dev/null @@ -1,26 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -import "syscall" - -var ( - errERROR_IO_PENDING error = syscall.ERROR_IO_PENDING - errEINVAL error = syscall.EINVAL -) - -// errnoErr returns common boxed Errno values, to prevent allocations -// at runtime. -func errnoErr(errno syscall.Errno) error { - switch errno { - case 0: - return nil - case syscall.ERROR_IO_PENDING: - return errERROR_IO_PENDING - case syscall.EINVAL: - return errEINVAL - } - return errno -} diff --git a/vendor/golang.org/x/net/internal/socket/iovec_32bit.go b/vendor/golang.org/x/net/internal/socket/iovec_32bit.go deleted file mode 100644 index 340e53fbda..0000000000 --- a/vendor/golang.org/x/net/internal/socket/iovec_32bit.go +++ /dev/null @@ -1,18 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build (arm || mips || mipsle || 386 || ppc) && (darwin || dragonfly || freebsd || linux || netbsd || openbsd) - -package socket - -import "unsafe" - -func (v *iovec) set(b []byte) { - l := len(b) - if l == 0 { - return - } - v.Base = (*byte)(unsafe.Pointer(&b[0])) - v.Len = uint32(l) -} diff --git a/vendor/golang.org/x/net/internal/socket/iovec_64bit.go b/vendor/golang.org/x/net/internal/socket/iovec_64bit.go deleted file mode 100644 index 26470c191a..0000000000 --- a/vendor/golang.org/x/net/internal/socket/iovec_64bit.go +++ /dev/null @@ -1,18 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build (arm64 || amd64 || loong64 || ppc64 || ppc64le || mips64 || mips64le || riscv64 || s390x) && (aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || zos) - -package socket - -import "unsafe" - -func (v *iovec) set(b []byte) { - l := len(b) - if l == 0 { - return - } - v.Base = (*byte)(unsafe.Pointer(&b[0])) - v.Len = uint64(l) -} diff --git a/vendor/golang.org/x/net/internal/socket/iovec_solaris_64bit.go b/vendor/golang.org/x/net/internal/socket/iovec_solaris_64bit.go deleted file mode 100644 index 8859ce1035..0000000000 --- a/vendor/golang.org/x/net/internal/socket/iovec_solaris_64bit.go +++ /dev/null @@ -1,18 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build amd64 && solaris - -package socket - -import "unsafe" - -func (v *iovec) set(b []byte) { - l := len(b) - if l == 0 { - return - } - v.Base = (*int8)(unsafe.Pointer(&b[0])) - v.Len = uint64(l) -} diff --git a/vendor/golang.org/x/net/internal/socket/iovec_stub.go b/vendor/golang.org/x/net/internal/socket/iovec_stub.go deleted file mode 100644 index da886b0326..0000000000 --- a/vendor/golang.org/x/net/internal/socket/iovec_stub.go +++ /dev/null @@ -1,11 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !zos - -package socket - -type iovec struct{} - -func (v *iovec) set(b []byte) {} diff --git a/vendor/golang.org/x/net/internal/socket/mmsghdr_stub.go b/vendor/golang.org/x/net/internal/socket/mmsghdr_stub.go deleted file mode 100644 index 4825b21e3e..0000000000 --- a/vendor/golang.org/x/net/internal/socket/mmsghdr_stub.go +++ /dev/null @@ -1,21 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !linux && !netbsd - -package socket - -import "net" - -type mmsghdr struct{} - -type mmsghdrs []mmsghdr - -func (hs mmsghdrs) pack(ms []Message, parseFn func([]byte, string) (net.Addr, error), marshalFn func(net.Addr) []byte) error { - return nil -} - -func (hs mmsghdrs) unpack(ms []Message, parseFn func([]byte, string) (net.Addr, error), hint string) error { - return nil -} diff --git a/vendor/golang.org/x/net/internal/socket/mmsghdr_unix.go b/vendor/golang.org/x/net/internal/socket/mmsghdr_unix.go deleted file mode 100644 index 311fd2c789..0000000000 --- a/vendor/golang.org/x/net/internal/socket/mmsghdr_unix.go +++ /dev/null @@ -1,195 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || linux || netbsd - -package socket - -import ( - "net" - "os" - "sync" - "syscall" -) - -type mmsghdrs []mmsghdr - -func (hs mmsghdrs) unpack(ms []Message, parseFn func([]byte, string) (net.Addr, error), hint string) error { - for i := range hs { - ms[i].N = int(hs[i].Len) - ms[i].NN = hs[i].Hdr.controllen() - ms[i].Flags = hs[i].Hdr.flags() - if parseFn != nil { - var err error - ms[i].Addr, err = parseFn(hs[i].Hdr.name(), hint) - if err != nil { - return err - } - } - } - return nil -} - -// mmsghdrsPacker packs Message-slices into mmsghdrs (re-)using pre-allocated buffers. -type mmsghdrsPacker struct { - // hs are the pre-allocated mmsghdrs. - hs mmsghdrs - // sockaddrs is the pre-allocated buffer for the Hdr.Name buffers. - // We use one large buffer for all messages and slice it up. - sockaddrs []byte - // vs are the pre-allocated iovecs. - // We allocate one large buffer for all messages and slice it up. This allows to reuse the buffer - // if the number of buffers per message is distributed differently between calls. - vs []iovec -} - -func (p *mmsghdrsPacker) prepare(ms []Message) { - n := len(ms) - if n <= cap(p.hs) { - p.hs = p.hs[:n] - } else { - p.hs = make(mmsghdrs, n) - } - if n*sizeofSockaddrInet6 <= cap(p.sockaddrs) { - p.sockaddrs = p.sockaddrs[:n*sizeofSockaddrInet6] - } else { - p.sockaddrs = make([]byte, n*sizeofSockaddrInet6) - } - - nb := 0 - for _, m := range ms { - nb += len(m.Buffers) - } - if nb <= cap(p.vs) { - p.vs = p.vs[:nb] - } else { - p.vs = make([]iovec, nb) - } -} - -func (p *mmsghdrsPacker) pack(ms []Message, parseFn func([]byte, string) (net.Addr, error), marshalFn func(net.Addr, []byte) int) mmsghdrs { - p.prepare(ms) - hs := p.hs - vsRest := p.vs - saRest := p.sockaddrs - for i := range hs { - nvs := len(ms[i].Buffers) - vs := vsRest[:nvs] - vsRest = vsRest[nvs:] - - var sa []byte - if parseFn != nil { - sa = saRest[:sizeofSockaddrInet6] - saRest = saRest[sizeofSockaddrInet6:] - } else if marshalFn != nil { - n := marshalFn(ms[i].Addr, saRest) - if n > 0 { - sa = saRest[:n] - saRest = saRest[n:] - } - } - hs[i].Hdr.pack(vs, ms[i].Buffers, ms[i].OOB, sa) - } - return hs -} - -// syscaller is a helper to invoke recvmmsg and sendmmsg via the RawConn.Read/Write interface. -// It is reusable, to amortize the overhead of allocating a closure for the function passed to -// RawConn.Read/Write. -type syscaller struct { - n int - operr error - hs mmsghdrs - flags int - - boundRecvmmsgF func(uintptr) bool - boundSendmmsgF func(uintptr) bool -} - -func (r *syscaller) init() { - r.boundRecvmmsgF = r.recvmmsgF - r.boundSendmmsgF = r.sendmmsgF -} - -func (r *syscaller) recvmmsg(c syscall.RawConn, hs mmsghdrs, flags int) (int, error) { - r.n = 0 - r.operr = nil - r.hs = hs - r.flags = flags - if err := c.Read(r.boundRecvmmsgF); err != nil { - return r.n, err - } - if r.operr != nil { - return r.n, os.NewSyscallError("recvmmsg", r.operr) - } - return r.n, nil -} - -func (r *syscaller) recvmmsgF(s uintptr) bool { - r.n, r.operr = recvmmsg(s, r.hs, r.flags) - return ioComplete(r.flags, r.operr) -} - -func (r *syscaller) sendmmsg(c syscall.RawConn, hs mmsghdrs, flags int) (int, error) { - r.n = 0 - r.operr = nil - r.hs = hs - r.flags = flags - if err := c.Write(r.boundSendmmsgF); err != nil { - return r.n, err - } - if r.operr != nil { - return r.n, os.NewSyscallError("sendmmsg", r.operr) - } - return r.n, nil -} - -func (r *syscaller) sendmmsgF(s uintptr) bool { - r.n, r.operr = sendmmsg(s, r.hs, r.flags) - return ioComplete(r.flags, r.operr) -} - -// mmsgTmps holds reusable temporary helpers for recvmmsg and sendmmsg. -type mmsgTmps struct { - packer mmsghdrsPacker - syscaller syscaller -} - -var defaultMmsgTmpsPool = mmsgTmpsPool{ - p: sync.Pool{ - New: func() interface{} { - tmps := new(mmsgTmps) - tmps.syscaller.init() - return tmps - }, - }, -} - -type mmsgTmpsPool struct { - p sync.Pool -} - -func (p *mmsgTmpsPool) Get() *mmsgTmps { - m := p.p.Get().(*mmsgTmps) - // Clear fields up to the len (not the cap) of the slice, - // assuming that the previous caller only used that many elements. - for i := range m.packer.sockaddrs { - m.packer.sockaddrs[i] = 0 - } - m.packer.sockaddrs = m.packer.sockaddrs[:0] - for i := range m.packer.vs { - m.packer.vs[i] = iovec{} - } - m.packer.vs = m.packer.vs[:0] - for i := range m.packer.hs { - m.packer.hs[i].Len = 0 - m.packer.hs[i].Hdr = msghdr{} - } - m.packer.hs = m.packer.hs[:0] - return m -} - -func (p *mmsgTmpsPool) Put(tmps *mmsgTmps) { - p.p.Put(tmps) -} diff --git a/vendor/golang.org/x/net/internal/socket/msghdr_bsd.go b/vendor/golang.org/x/net/internal/socket/msghdr_bsd.go deleted file mode 100644 index ebff4f6e05..0000000000 --- a/vendor/golang.org/x/net/internal/socket/msghdr_bsd.go +++ /dev/null @@ -1,39 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || netbsd || openbsd - -package socket - -import "unsafe" - -func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) { - for i := range vs { - vs[i].set(bs[i]) - } - h.setIov(vs) - if len(oob) > 0 { - h.Control = (*byte)(unsafe.Pointer(&oob[0])) - h.Controllen = uint32(len(oob)) - } - if sa != nil { - h.Name = (*byte)(unsafe.Pointer(&sa[0])) - h.Namelen = uint32(len(sa)) - } -} - -func (h *msghdr) name() []byte { - if h.Name != nil && h.Namelen > 0 { - return (*[sizeofSockaddrInet6]byte)(unsafe.Pointer(h.Name))[:h.Namelen] - } - return nil -} - -func (h *msghdr) controllen() int { - return int(h.Controllen) -} - -func (h *msghdr) flags() int { - return int(h.Flags) -} diff --git a/vendor/golang.org/x/net/internal/socket/msghdr_bsdvar.go b/vendor/golang.org/x/net/internal/socket/msghdr_bsdvar.go deleted file mode 100644 index 62e6fe8616..0000000000 --- a/vendor/golang.org/x/net/internal/socket/msghdr_bsdvar.go +++ /dev/null @@ -1,16 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || netbsd - -package socket - -func (h *msghdr) setIov(vs []iovec) { - l := len(vs) - if l == 0 { - return - } - h.Iov = &vs[0] - h.Iovlen = int32(l) -} diff --git a/vendor/golang.org/x/net/internal/socket/msghdr_linux.go b/vendor/golang.org/x/net/internal/socket/msghdr_linux.go deleted file mode 100644 index 5a38798cc0..0000000000 --- a/vendor/golang.org/x/net/internal/socket/msghdr_linux.go +++ /dev/null @@ -1,36 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -import "unsafe" - -func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) { - for i := range vs { - vs[i].set(bs[i]) - } - h.setIov(vs) - if len(oob) > 0 { - h.setControl(oob) - } - if sa != nil { - h.Name = (*byte)(unsafe.Pointer(&sa[0])) - h.Namelen = uint32(len(sa)) - } -} - -func (h *msghdr) name() []byte { - if h.Name != nil && h.Namelen > 0 { - return (*[sizeofSockaddrInet6]byte)(unsafe.Pointer(h.Name))[:h.Namelen] - } - return nil -} - -func (h *msghdr) controllen() int { - return int(h.Controllen) -} - -func (h *msghdr) flags() int { - return int(h.Flags) -} diff --git a/vendor/golang.org/x/net/internal/socket/msghdr_linux_32bit.go b/vendor/golang.org/x/net/internal/socket/msghdr_linux_32bit.go deleted file mode 100644 index 3dd07250a6..0000000000 --- a/vendor/golang.org/x/net/internal/socket/msghdr_linux_32bit.go +++ /dev/null @@ -1,23 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build (arm || mips || mipsle || 386 || ppc) && linux - -package socket - -import "unsafe" - -func (h *msghdr) setIov(vs []iovec) { - l := len(vs) - if l == 0 { - return - } - h.Iov = &vs[0] - h.Iovlen = uint32(l) -} - -func (h *msghdr) setControl(b []byte) { - h.Control = (*byte)(unsafe.Pointer(&b[0])) - h.Controllen = uint32(len(b)) -} diff --git a/vendor/golang.org/x/net/internal/socket/msghdr_linux_64bit.go b/vendor/golang.org/x/net/internal/socket/msghdr_linux_64bit.go deleted file mode 100644 index 5af9ddd6ab..0000000000 --- a/vendor/golang.org/x/net/internal/socket/msghdr_linux_64bit.go +++ /dev/null @@ -1,23 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build (arm64 || amd64 || loong64 || ppc64 || ppc64le || mips64 || mips64le || riscv64 || s390x) && linux - -package socket - -import "unsafe" - -func (h *msghdr) setIov(vs []iovec) { - l := len(vs) - if l == 0 { - return - } - h.Iov = &vs[0] - h.Iovlen = uint64(l) -} - -func (h *msghdr) setControl(b []byte) { - h.Control = (*byte)(unsafe.Pointer(&b[0])) - h.Controllen = uint64(len(b)) -} diff --git a/vendor/golang.org/x/net/internal/socket/msghdr_openbsd.go b/vendor/golang.org/x/net/internal/socket/msghdr_openbsd.go deleted file mode 100644 index 71a69e2513..0000000000 --- a/vendor/golang.org/x/net/internal/socket/msghdr_openbsd.go +++ /dev/null @@ -1,14 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -func (h *msghdr) setIov(vs []iovec) { - l := len(vs) - if l == 0 { - return - } - h.Iov = &vs[0] - h.Iovlen = uint32(l) -} diff --git a/vendor/golang.org/x/net/internal/socket/msghdr_solaris_64bit.go b/vendor/golang.org/x/net/internal/socket/msghdr_solaris_64bit.go deleted file mode 100644 index 927ce91ac2..0000000000 --- a/vendor/golang.org/x/net/internal/socket/msghdr_solaris_64bit.go +++ /dev/null @@ -1,38 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build amd64 && solaris - -package socket - -import ( - "encoding/binary" - "unsafe" -) - -func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) { - for i := range vs { - vs[i].set(bs[i]) - } - if len(vs) > 0 { - h.Iov = &vs[0] - h.Iovlen = int32(len(vs)) - } - if len(oob) > 0 { - h.Accrights = (*int8)(unsafe.Pointer(&oob[0])) - h.Accrightslen = int32(len(oob)) - } - if sa != nil { - h.Name = (*byte)(unsafe.Pointer(&sa[0])) - h.Namelen = uint32(len(sa)) - } -} - -func (h *msghdr) controllen() int { - return int(h.Accrightslen) -} - -func (h *msghdr) flags() int { - return int(binary.NativeEndian.Uint32(h.Pad_cgo_2[:])) -} diff --git a/vendor/golang.org/x/net/internal/socket/msghdr_stub.go b/vendor/golang.org/x/net/internal/socket/msghdr_stub.go deleted file mode 100644 index e876776459..0000000000 --- a/vendor/golang.org/x/net/internal/socket/msghdr_stub.go +++ /dev/null @@ -1,14 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !zos - -package socket - -type msghdr struct{} - -func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) {} -func (h *msghdr) name() []byte { return nil } -func (h *msghdr) controllen() int { return 0 } -func (h *msghdr) flags() int { return 0 } diff --git a/vendor/golang.org/x/net/internal/socket/msghdr_zos_s390x.go b/vendor/golang.org/x/net/internal/socket/msghdr_zos_s390x.go deleted file mode 100644 index 529db68ee3..0000000000 --- a/vendor/golang.org/x/net/internal/socket/msghdr_zos_s390x.go +++ /dev/null @@ -1,35 +0,0 @@ -// Copyright 2020 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build s390x && zos - -package socket - -import "unsafe" - -func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) { - for i := range vs { - vs[i].set(bs[i]) - } - if len(vs) > 0 { - h.Iov = &vs[0] - h.Iovlen = int32(len(vs)) - } - if len(oob) > 0 { - h.Control = (*byte)(unsafe.Pointer(&oob[0])) - h.Controllen = uint32(len(oob)) - } - if sa != nil { - h.Name = (*byte)(unsafe.Pointer(&sa[0])) - h.Namelen = uint32(len(sa)) - } -} - -func (h *msghdr) controllen() int { - return int(h.Controllen) -} - -func (h *msghdr) flags() int { - return int(h.Flags) -} diff --git a/vendor/golang.org/x/net/internal/socket/norace.go b/vendor/golang.org/x/net/internal/socket/norace.go deleted file mode 100644 index 8af30ecfbb..0000000000 --- a/vendor/golang.org/x/net/internal/socket/norace.go +++ /dev/null @@ -1,12 +0,0 @@ -// Copyright 2019 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !race - -package socket - -func (m *Message) raceRead() { -} -func (m *Message) raceWrite() { -} diff --git a/vendor/golang.org/x/net/internal/socket/race.go b/vendor/golang.org/x/net/internal/socket/race.go deleted file mode 100644 index 9afa958083..0000000000 --- a/vendor/golang.org/x/net/internal/socket/race.go +++ /dev/null @@ -1,37 +0,0 @@ -// Copyright 2019 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build race - -package socket - -import ( - "runtime" - "unsafe" -) - -// This package reads and writes the Message buffers using a -// direct system call, which the race detector can't see. -// These functions tell the race detector what is going on during the syscall. - -func (m *Message) raceRead() { - for _, b := range m.Buffers { - if len(b) > 0 { - runtime.RaceReadRange(unsafe.Pointer(&b[0]), len(b)) - } - } - if b := m.OOB; len(b) > 0 { - runtime.RaceReadRange(unsafe.Pointer(&b[0]), len(b)) - } -} -func (m *Message) raceWrite() { - for _, b := range m.Buffers { - if len(b) > 0 { - runtime.RaceWriteRange(unsafe.Pointer(&b[0]), len(b)) - } - } - if b := m.OOB; len(b) > 0 { - runtime.RaceWriteRange(unsafe.Pointer(&b[0]), len(b)) - } -} diff --git a/vendor/golang.org/x/net/internal/socket/rawconn.go b/vendor/golang.org/x/net/internal/socket/rawconn.go deleted file mode 100644 index 87e81071c1..0000000000 --- a/vendor/golang.org/x/net/internal/socket/rawconn.go +++ /dev/null @@ -1,91 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -import ( - "errors" - "net" - "os" - "syscall" -) - -// A Conn represents a raw connection. -type Conn struct { - network string - c syscall.RawConn -} - -// tcpConn is an interface implemented by net.TCPConn. -// It can be used for interface assertions to check if a net.Conn is a TCP connection. -type tcpConn interface { - SyscallConn() (syscall.RawConn, error) - SetLinger(int) error -} - -var _ tcpConn = (*net.TCPConn)(nil) - -// udpConn is an interface implemented by net.UDPConn. -// It can be used for interface assertions to check if a net.Conn is a UDP connection. -type udpConn interface { - SyscallConn() (syscall.RawConn, error) - ReadMsgUDP(b, oob []byte) (n, oobn, flags int, addr *net.UDPAddr, err error) -} - -var _ udpConn = (*net.UDPConn)(nil) - -// ipConn is an interface implemented by net.IPConn. -// It can be used for interface assertions to check if a net.Conn is an IP connection. -type ipConn interface { - SyscallConn() (syscall.RawConn, error) - ReadMsgIP(b, oob []byte) (n, oobn, flags int, addr *net.IPAddr, err error) -} - -var _ ipConn = (*net.IPConn)(nil) - -// NewConn returns a new raw connection. -func NewConn(c net.Conn) (*Conn, error) { - var err error - var cc Conn - switch c := c.(type) { - case tcpConn: - cc.network = "tcp" - cc.c, err = c.SyscallConn() - case udpConn: - cc.network = "udp" - cc.c, err = c.SyscallConn() - case ipConn: - cc.network = "ip" - cc.c, err = c.SyscallConn() - default: - return nil, errors.New("unknown connection type") - } - if err != nil { - return nil, err - } - return &cc, nil -} - -func (o *Option) get(c *Conn, b []byte) (int, error) { - var operr error - var n int - fn := func(s uintptr) { - n, operr = getsockopt(s, o.Level, o.Name, b) - } - if err := c.c.Control(fn); err != nil { - return 0, err - } - return n, os.NewSyscallError("getsockopt", operr) -} - -func (o *Option) set(c *Conn, b []byte) error { - var operr error - fn := func(s uintptr) { - operr = setsockopt(s, o.Level, o.Name, b) - } - if err := c.c.Control(fn); err != nil { - return err - } - return os.NewSyscallError("setsockopt", operr) -} diff --git a/vendor/golang.org/x/net/internal/socket/rawconn_mmsg.go b/vendor/golang.org/x/net/internal/socket/rawconn_mmsg.go deleted file mode 100644 index 0431390789..0000000000 --- a/vendor/golang.org/x/net/internal/socket/rawconn_mmsg.go +++ /dev/null @@ -1,53 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build linux - -package socket - -import ( - "net" -) - -func (c *Conn) recvMsgs(ms []Message, flags int) (int, error) { - for i := range ms { - ms[i].raceWrite() - } - tmps := defaultMmsgTmpsPool.Get() - defer defaultMmsgTmpsPool.Put(tmps) - var parseFn func([]byte, string) (net.Addr, error) - if c.network != "tcp" { - parseFn = parseInetAddr - } - hs := tmps.packer.pack(ms, parseFn, nil) - n, err := tmps.syscaller.recvmmsg(c.c, hs, flags) - if err != nil { - return n, err - } - if err := hs[:n].unpack(ms[:n], parseFn, c.network); err != nil { - return n, err - } - return n, nil -} - -func (c *Conn) sendMsgs(ms []Message, flags int) (int, error) { - for i := range ms { - ms[i].raceRead() - } - tmps := defaultMmsgTmpsPool.Get() - defer defaultMmsgTmpsPool.Put(tmps) - var marshalFn func(net.Addr, []byte) int - if c.network != "tcp" { - marshalFn = marshalInetAddr - } - hs := tmps.packer.pack(ms, nil, marshalFn) - n, err := tmps.syscaller.sendmmsg(c.c, hs, flags) - if err != nil { - return n, err - } - if err := hs[:n].unpack(ms[:n], nil, ""); err != nil { - return n, err - } - return n, nil -} diff --git a/vendor/golang.org/x/net/internal/socket/rawconn_msg.go b/vendor/golang.org/x/net/internal/socket/rawconn_msg.go deleted file mode 100644 index 7c0d7410bc..0000000000 --- a/vendor/golang.org/x/net/internal/socket/rawconn_msg.go +++ /dev/null @@ -1,59 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || windows || zos - -package socket - -import ( - "net" - "os" -) - -func (c *Conn) recvMsg(m *Message, flags int) error { - m.raceWrite() - var ( - operr error - n int - oobn int - recvflags int - from net.Addr - ) - fn := func(s uintptr) bool { - n, oobn, recvflags, from, operr = recvmsg(s, m.Buffers, m.OOB, flags, c.network) - return ioComplete(flags, operr) - } - if err := c.c.Read(fn); err != nil { - return err - } - if operr != nil { - return os.NewSyscallError("recvmsg", operr) - } - m.Addr = from - m.N = n - m.NN = oobn - m.Flags = recvflags - return nil -} - -func (c *Conn) sendMsg(m *Message, flags int) error { - m.raceRead() - var ( - operr error - n int - ) - fn := func(s uintptr) bool { - n, operr = sendmsg(s, m.Buffers, m.OOB, m.Addr, flags) - return ioComplete(flags, operr) - } - if err := c.c.Write(fn); err != nil { - return err - } - if operr != nil { - return os.NewSyscallError("sendmsg", operr) - } - m.N = n - m.NN = len(m.OOB) - return nil -} diff --git a/vendor/golang.org/x/net/internal/socket/rawconn_nommsg.go b/vendor/golang.org/x/net/internal/socket/rawconn_nommsg.go deleted file mode 100644 index e363fb5a89..0000000000 --- a/vendor/golang.org/x/net/internal/socket/rawconn_nommsg.go +++ /dev/null @@ -1,15 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !linux - -package socket - -func (c *Conn) recvMsgs(ms []Message, flags int) (int, error) { - return 0, errNotImplemented -} - -func (c *Conn) sendMsgs(ms []Message, flags int) (int, error) { - return 0, errNotImplemented -} diff --git a/vendor/golang.org/x/net/internal/socket/rawconn_nomsg.go b/vendor/golang.org/x/net/internal/socket/rawconn_nomsg.go deleted file mode 100644 index ff7a8baf0b..0000000000 --- a/vendor/golang.org/x/net/internal/socket/rawconn_nomsg.go +++ /dev/null @@ -1,15 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !windows && !zos - -package socket - -func (c *Conn) recvMsg(m *Message, flags int) error { - return errNotImplemented -} - -func (c *Conn) sendMsg(m *Message, flags int) error { - return errNotImplemented -} diff --git a/vendor/golang.org/x/net/internal/socket/socket.go b/vendor/golang.org/x/net/internal/socket/socket.go deleted file mode 100644 index fb7fa1e00a..0000000000 --- a/vendor/golang.org/x/net/internal/socket/socket.go +++ /dev/null @@ -1,281 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package socket provides a portable interface for socket system -// calls. -package socket // import "golang.org/x/net/internal/socket" - -import ( - "encoding/binary" - "errors" - "net" - "runtime" - "unsafe" -) - -var errNotImplemented = errors.New("not implemented on " + runtime.GOOS + "/" + runtime.GOARCH) - -// An Option represents a sticky socket option. -type Option struct { - Level int // level - Name int // name; must be equal or greater than 1 - Len int // length of value in bytes; must be equal or greater than 1 -} - -// Get reads a value for the option from the kernel. -// It returns the number of bytes written into b. -func (o *Option) Get(c *Conn, b []byte) (int, error) { - if o.Name < 1 || o.Len < 1 { - return 0, errors.New("invalid option") - } - if len(b) < o.Len { - return 0, errors.New("short buffer") - } - return o.get(c, b) -} - -// GetInt returns an integer value for the option. -// -// The Len field of Option must be either 1 or 4. -func (o *Option) GetInt(c *Conn) (int, error) { - if o.Len != 1 && o.Len != 4 { - return 0, errors.New("invalid option") - } - var b []byte - var bb [4]byte - if o.Len == 1 { - b = bb[:1] - } else { - b = bb[:4] - } - n, err := o.get(c, b) - if err != nil { - return 0, err - } - if n != o.Len { - return 0, errors.New("invalid option length") - } - if o.Len == 1 { - return int(b[0]), nil - } - return int(binary.NativeEndian.Uint32(b[:4])), nil -} - -// Set writes the option and value to the kernel. -func (o *Option) Set(c *Conn, b []byte) error { - if o.Name < 1 || o.Len < 1 { - return errors.New("invalid option") - } - if len(b) < o.Len { - return errors.New("short buffer") - } - return o.set(c, b) -} - -// SetInt writes the option and value to the kernel. -// -// The Len field of Option must be either 1 or 4. -func (o *Option) SetInt(c *Conn, v int) error { - if o.Len != 1 && o.Len != 4 { - return errors.New("invalid option") - } - var b []byte - if o.Len == 1 { - b = []byte{byte(v)} - } else { - var bb [4]byte - binary.NativeEndian.PutUint32(bb[:o.Len], uint32(v)) - b = bb[:4] - } - return o.set(c, b) -} - -// ControlMessageSpace returns the whole length of control message. -func ControlMessageSpace(dataLen int) int { - return controlMessageSpace(dataLen) -} - -// A ControlMessage represents the head message in a stream of control -// messages. -// -// A control message comprises of a header, data and a few padding -// fields to conform to the interface to the kernel. -// -// See RFC 3542 for further information. -type ControlMessage []byte - -// Data returns the data field of the control message at the head on -// m. -func (m ControlMessage) Data(dataLen int) []byte { - l := controlHeaderLen() - if len(m) < l || len(m) < l+dataLen { - return nil - } - return m[l : l+dataLen] -} - -// Next returns the control message at the next on m. -// -// Next works only for standard control messages. -func (m ControlMessage) Next(dataLen int) ControlMessage { - l := ControlMessageSpace(dataLen) - if len(m) < l { - return nil - } - return m[l:] -} - -// MarshalHeader marshals the header fields of the control message at -// the head on m. -func (m ControlMessage) MarshalHeader(lvl, typ, dataLen int) error { - if len(m) < controlHeaderLen() { - return errors.New("short message") - } - h := (*cmsghdr)(unsafe.Pointer(&m[0])) - h.set(controlMessageLen(dataLen), lvl, typ) - return nil -} - -// ParseHeader parses and returns the header fields of the control -// message at the head on m. -func (m ControlMessage) ParseHeader() (lvl, typ, dataLen int, err error) { - l := controlHeaderLen() - if len(m) < l { - return 0, 0, 0, errors.New("short message") - } - h := (*cmsghdr)(unsafe.Pointer(&m[0])) - return h.lvl(), h.typ(), int(uint64(h.len()) - uint64(l)), nil -} - -// Marshal marshals the control message at the head on m, and returns -// the next control message. -func (m ControlMessage) Marshal(lvl, typ int, data []byte) (ControlMessage, error) { - l := len(data) - if len(m) < ControlMessageSpace(l) { - return nil, errors.New("short message") - } - h := (*cmsghdr)(unsafe.Pointer(&m[0])) - h.set(controlMessageLen(l), lvl, typ) - if l > 0 { - copy(m.Data(l), data) - } - return m.Next(l), nil -} - -// Parse parses m as a single or multiple control messages. -// -// Parse works for both standard and compatible messages. -func (m ControlMessage) Parse() ([]ControlMessage, error) { - var ms []ControlMessage - for len(m) >= controlHeaderLen() { - h := (*cmsghdr)(unsafe.Pointer(&m[0])) - l := h.len() - if l <= 0 { - return nil, errors.New("invalid header length") - } - if uint64(l) < uint64(controlHeaderLen()) { - return nil, errors.New("invalid message length") - } - if uint64(l) > uint64(len(m)) { - return nil, errors.New("short buffer") - } - // On message reception: - // - // |<- ControlMessageSpace --------------->| - // |<- controlMessageLen ---------->| | - // |<- controlHeaderLen ->| | | - // +---------------+------+---------+------+ - // | Header | PadH | Data | PadD | - // +---------------+------+---------+------+ - // - // On compatible message reception: - // - // | ... |<- controlMessageLen ----------->| - // | ... |<- controlHeaderLen ->| | - // +-----+---------------+------+----------+ - // | ... | Header | PadH | Data | - // +-----+---------------+------+----------+ - ms = append(ms, ControlMessage(m[:l])) - ll := l - controlHeaderLen() - if len(m) >= ControlMessageSpace(ll) { - m = m[ControlMessageSpace(ll):] - } else { - m = m[controlMessageLen(ll):] - } - } - return ms, nil -} - -// NewControlMessage returns a new stream of control messages. -func NewControlMessage(dataLen []int) ControlMessage { - var l int - for i := range dataLen { - l += ControlMessageSpace(dataLen[i]) - } - return make([]byte, l) -} - -// A Message represents an IO message. -type Message struct { - // When writing, the Buffers field must contain at least one - // byte to write. - // When reading, the Buffers field will always contain a byte - // to read. - Buffers [][]byte - - // OOB contains protocol-specific control or miscellaneous - // ancillary data known as out-of-band data. - OOB []byte - - // Addr specifies a destination address when writing. - // It can be nil when the underlying protocol of the raw - // connection uses connection-oriented communication. - // After a successful read, it may contain the source address - // on the received packet. - Addr net.Addr - - N int // # of bytes read or written from/to Buffers - NN int // # of bytes read or written from/to OOB - Flags int // protocol-specific information on the received message -} - -// RecvMsg wraps recvmsg system call. -// -// The provided flags is a set of platform-dependent flags, such as -// syscall.MSG_PEEK. -func (c *Conn) RecvMsg(m *Message, flags int) error { - return c.recvMsg(m, flags) -} - -// SendMsg wraps sendmsg system call. -// -// The provided flags is a set of platform-dependent flags, such as -// syscall.MSG_DONTROUTE. -func (c *Conn) SendMsg(m *Message, flags int) error { - return c.sendMsg(m, flags) -} - -// RecvMsgs wraps recvmmsg system call. -// -// It returns the number of processed messages. -// -// The provided flags is a set of platform-dependent flags, such as -// syscall.MSG_PEEK. -// -// Only Linux supports this. -func (c *Conn) RecvMsgs(ms []Message, flags int) (int, error) { - return c.recvMsgs(ms, flags) -} - -// SendMsgs wraps sendmmsg system call. -// -// It returns the number of processed messages. -// -// The provided flags is a set of platform-dependent flags, such as -// syscall.MSG_DONTROUTE. -// -// Only Linux supports this. -func (c *Conn) SendMsgs(ms []Message, flags int) (int, error) { - return c.sendMsgs(ms, flags) -} diff --git a/vendor/golang.org/x/net/internal/socket/sys_bsd.go b/vendor/golang.org/x/net/internal/socket/sys_bsd.go deleted file mode 100644 index e7664d48be..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_bsd.go +++ /dev/null @@ -1,15 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || openbsd || solaris - -package socket - -func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) { - return 0, errNotImplemented -} - -func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) { - return 0, errNotImplemented -} diff --git a/vendor/golang.org/x/net/internal/socket/sys_const_unix.go b/vendor/golang.org/x/net/internal/socket/sys_const_unix.go deleted file mode 100644 index d7627f87eb..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_const_unix.go +++ /dev/null @@ -1,20 +0,0 @@ -// Copyright 2019 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos - -package socket - -import "golang.org/x/sys/unix" - -const ( - sysAF_UNSPEC = unix.AF_UNSPEC - sysAF_INET = unix.AF_INET - sysAF_INET6 = unix.AF_INET6 - - sysSOCK_RAW = unix.SOCK_RAW - - sizeofSockaddrInet4 = unix.SizeofSockaddrInet4 - sizeofSockaddrInet6 = unix.SizeofSockaddrInet6 -) diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux.go b/vendor/golang.org/x/net/internal/socket/sys_linux.go deleted file mode 100644 index 08d4910778..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux.go +++ /dev/null @@ -1,22 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build linux && !s390x && !386 - -package socket - -import ( - "syscall" - "unsafe" -) - -func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) { - n, _, errno := syscall.Syscall6(sysRECVMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0) - return int(n), errnoErr(errno) -} - -func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) { - n, _, errno := syscall.Syscall6(sysSENDMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0) - return int(n), errnoErr(errno) -} diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_386.go b/vendor/golang.org/x/net/internal/socket/sys_linux_386.go deleted file mode 100644 index c877ef23ae..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_386.go +++ /dev/null @@ -1,28 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -import ( - "syscall" - "unsafe" -) - -const ( - sysRECVMMSG = 0x13 - sysSENDMMSG = 0x14 -) - -func socketcall(call, a0, a1, a2, a3, a4, a5 uintptr) (uintptr, syscall.Errno) -func rawsocketcall(call, a0, a1, a2, a3, a4, a5 uintptr) (uintptr, syscall.Errno) - -func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) { - n, errno := socketcall(sysRECVMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0) - return int(n), errnoErr(errno) -} - -func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) { - n, errno := socketcall(sysSENDMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0) - return int(n), errnoErr(errno) -} diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_386.s b/vendor/golang.org/x/net/internal/socket/sys_linux_386.s deleted file mode 100644 index 93e7d75ec0..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_386.s +++ /dev/null @@ -1,11 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -#include "textflag.h" - -TEXT ·socketcall(SB),NOSPLIT,$0-36 - JMP syscall·socketcall(SB) - -TEXT ·rawsocketcall(SB),NOSPLIT,$0-36 - JMP syscall·rawsocketcall(SB) diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_amd64.go b/vendor/golang.org/x/net/internal/socket/sys_linux_amd64.go deleted file mode 100644 index 9decee2e59..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_amd64.go +++ /dev/null @@ -1,10 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -const ( - sysRECVMMSG = 0x12b - sysSENDMMSG = 0x133 -) diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_arm.go b/vendor/golang.org/x/net/internal/socket/sys_linux_arm.go deleted file mode 100644 index d753b436df..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_arm.go +++ /dev/null @@ -1,10 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -const ( - sysRECVMMSG = 0x16d - sysSENDMMSG = 0x176 -) diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_arm64.go b/vendor/golang.org/x/net/internal/socket/sys_linux_arm64.go deleted file mode 100644 index b670894366..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_arm64.go +++ /dev/null @@ -1,10 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -const ( - sysRECVMMSG = 0xf3 - sysSENDMMSG = 0x10d -) diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_loong64.go b/vendor/golang.org/x/net/internal/socket/sys_linux_loong64.go deleted file mode 100644 index 1d182470d0..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_loong64.go +++ /dev/null @@ -1,12 +0,0 @@ -// Copyright 2021 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build loong64 - -package socket - -const ( - sysRECVMMSG = 0xf3 - sysSENDMMSG = 0x10d -) diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_mips.go b/vendor/golang.org/x/net/internal/socket/sys_linux_mips.go deleted file mode 100644 index 9c0d74014f..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_mips.go +++ /dev/null @@ -1,10 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -const ( - sysRECVMMSG = 0x10ef - sysSENDMMSG = 0x10f7 -) diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_mips64.go b/vendor/golang.org/x/net/internal/socket/sys_linux_mips64.go deleted file mode 100644 index 071a4aba8b..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_mips64.go +++ /dev/null @@ -1,10 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -const ( - sysRECVMMSG = 0x14ae - sysSENDMMSG = 0x14b6 -) diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_mips64le.go b/vendor/golang.org/x/net/internal/socket/sys_linux_mips64le.go deleted file mode 100644 index 071a4aba8b..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_mips64le.go +++ /dev/null @@ -1,10 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -const ( - sysRECVMMSG = 0x14ae - sysSENDMMSG = 0x14b6 -) diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_mipsle.go b/vendor/golang.org/x/net/internal/socket/sys_linux_mipsle.go deleted file mode 100644 index 9c0d74014f..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_mipsle.go +++ /dev/null @@ -1,10 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -const ( - sysRECVMMSG = 0x10ef - sysSENDMMSG = 0x10f7 -) diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_ppc.go b/vendor/golang.org/x/net/internal/socket/sys_linux_ppc.go deleted file mode 100644 index 90cfaa9fec..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_ppc.go +++ /dev/null @@ -1,10 +0,0 @@ -// Copyright 2021 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -const ( - sysRECVMMSG = 0x157 - sysSENDMMSG = 0x15d -) diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_ppc64.go b/vendor/golang.org/x/net/internal/socket/sys_linux_ppc64.go deleted file mode 100644 index 21c1e3f004..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_ppc64.go +++ /dev/null @@ -1,10 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -const ( - sysRECVMMSG = 0x157 - sysSENDMMSG = 0x15d -) diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_ppc64le.go b/vendor/golang.org/x/net/internal/socket/sys_linux_ppc64le.go deleted file mode 100644 index 21c1e3f004..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_ppc64le.go +++ /dev/null @@ -1,10 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -const ( - sysRECVMMSG = 0x157 - sysSENDMMSG = 0x15d -) diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_riscv64.go b/vendor/golang.org/x/net/internal/socket/sys_linux_riscv64.go deleted file mode 100644 index 0e407d1257..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_riscv64.go +++ /dev/null @@ -1,12 +0,0 @@ -// Copyright 2019 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build riscv64 - -package socket - -const ( - sysRECVMMSG = 0xf3 - sysSENDMMSG = 0x10d -) diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_s390x.go b/vendor/golang.org/x/net/internal/socket/sys_linux_s390x.go deleted file mode 100644 index c877ef23ae..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_s390x.go +++ /dev/null @@ -1,28 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -import ( - "syscall" - "unsafe" -) - -const ( - sysRECVMMSG = 0x13 - sysSENDMMSG = 0x14 -) - -func socketcall(call, a0, a1, a2, a3, a4, a5 uintptr) (uintptr, syscall.Errno) -func rawsocketcall(call, a0, a1, a2, a3, a4, a5 uintptr) (uintptr, syscall.Errno) - -func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) { - n, errno := socketcall(sysRECVMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0) - return int(n), errnoErr(errno) -} - -func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) { - n, errno := socketcall(sysSENDMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0) - return int(n), errnoErr(errno) -} diff --git a/vendor/golang.org/x/net/internal/socket/sys_linux_s390x.s b/vendor/golang.org/x/net/internal/socket/sys_linux_s390x.s deleted file mode 100644 index 06d75628c9..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_linux_s390x.s +++ /dev/null @@ -1,11 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -#include "textflag.h" - -TEXT ·socketcall(SB),NOSPLIT,$0-72 - JMP syscall·socketcall(SB) - -TEXT ·rawsocketcall(SB),NOSPLIT,$0-72 - JMP syscall·rawsocketcall(SB) diff --git a/vendor/golang.org/x/net/internal/socket/sys_netbsd.go b/vendor/golang.org/x/net/internal/socket/sys_netbsd.go deleted file mode 100644 index 431851c12e..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_netbsd.go +++ /dev/null @@ -1,25 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -import ( - "syscall" - "unsafe" -) - -const ( - sysRECVMMSG = 0x1db - sysSENDMMSG = 0x1dc -) - -func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) { - n, _, errno := syscall.Syscall6(sysRECVMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0) - return int(n), errnoErr(errno) -} - -func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) { - n, _, errno := syscall.Syscall6(sysSENDMMSG, s, uintptr(unsafe.Pointer(&hs[0])), uintptr(len(hs)), uintptr(flags), 0, 0) - return int(n), errnoErr(errno) -} diff --git a/vendor/golang.org/x/net/internal/socket/sys_posix.go b/vendor/golang.org/x/net/internal/socket/sys_posix.go deleted file mode 100644 index 84ff235170..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_posix.go +++ /dev/null @@ -1,184 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || windows || zos - -package socket - -import ( - "encoding/binary" - "errors" - "net" - "runtime" - "strconv" - "sync" - "time" -) - -// marshalInetAddr writes a in sockaddr format into the buffer b. -// The buffer must be sufficiently large (sizeofSockaddrInet4/6). -// Returns the number of bytes written. -func marshalInetAddr(a net.Addr, b []byte) int { - switch a := a.(type) { - case *net.TCPAddr: - return marshalSockaddr(a.IP, a.Port, a.Zone, b) - case *net.UDPAddr: - return marshalSockaddr(a.IP, a.Port, a.Zone, b) - case *net.IPAddr: - return marshalSockaddr(a.IP, 0, a.Zone, b) - default: - return 0 - } -} - -func marshalSockaddr(ip net.IP, port int, zone string, b []byte) int { - if ip4 := ip.To4(); ip4 != nil { - switch runtime.GOOS { - case "android", "illumos", "linux", "solaris", "windows": - binary.NativeEndian.PutUint16(b[:2], uint16(sysAF_INET)) - default: - b[0] = sizeofSockaddrInet4 - b[1] = sysAF_INET - } - binary.BigEndian.PutUint16(b[2:4], uint16(port)) - copy(b[4:8], ip4) - return sizeofSockaddrInet4 - } - if ip6 := ip.To16(); ip6 != nil && ip.To4() == nil { - switch runtime.GOOS { - case "android", "illumos", "linux", "solaris", "windows": - binary.NativeEndian.PutUint16(b[:2], uint16(sysAF_INET6)) - default: - b[0] = sizeofSockaddrInet6 - b[1] = sysAF_INET6 - } - binary.BigEndian.PutUint16(b[2:4], uint16(port)) - copy(b[8:24], ip6) - if zone != "" { - binary.NativeEndian.PutUint32(b[24:28], uint32(zoneCache.index(zone))) - } - return sizeofSockaddrInet6 - } - return 0 -} - -func parseInetAddr(b []byte, network string) (net.Addr, error) { - if len(b) < 2 { - return nil, errors.New("invalid address") - } - var af int - switch runtime.GOOS { - case "android", "illumos", "linux", "solaris", "windows": - af = int(binary.NativeEndian.Uint16(b[:2])) - default: - af = int(b[1]) - } - var ip net.IP - var zone string - if af == sysAF_INET { - if len(b) < sizeofSockaddrInet4 { - return nil, errors.New("short address") - } - ip = make(net.IP, net.IPv4len) - copy(ip, b[4:8]) - } - if af == sysAF_INET6 { - if len(b) < sizeofSockaddrInet6 { - return nil, errors.New("short address") - } - ip = make(net.IP, net.IPv6len) - copy(ip, b[8:24]) - if id := int(binary.NativeEndian.Uint32(b[24:28])); id > 0 { - zone = zoneCache.name(id) - } - } - switch network { - case "tcp", "tcp4", "tcp6": - return &net.TCPAddr{IP: ip, Port: int(binary.BigEndian.Uint16(b[2:4])), Zone: zone}, nil - case "udp", "udp4", "udp6": - return &net.UDPAddr{IP: ip, Port: int(binary.BigEndian.Uint16(b[2:4])), Zone: zone}, nil - default: - return &net.IPAddr{IP: ip, Zone: zone}, nil - } -} - -// An ipv6ZoneCache represents a cache holding partial network -// interface information. It is used for reducing the cost of IPv6 -// addressing scope zone resolution. -// -// Multiple names sharing the index are managed by first-come -// first-served basis for consistency. -type ipv6ZoneCache struct { - sync.RWMutex // guard the following - lastFetched time.Time // last time routing information was fetched - toIndex map[string]int // interface name to its index - toName map[int]string // interface index to its name -} - -var zoneCache = ipv6ZoneCache{ - toIndex: make(map[string]int), - toName: make(map[int]string), -} - -// update refreshes the network interface information if the cache was last -// updated more than 1 minute ago, or if force is set. It returns whether the -// cache was updated. -func (zc *ipv6ZoneCache) update(ift []net.Interface, force bool) (updated bool) { - zc.Lock() - defer zc.Unlock() - now := time.Now() - if !force && zc.lastFetched.After(now.Add(-60*time.Second)) { - return false - } - zc.lastFetched = now - if len(ift) == 0 { - var err error - if ift, err = net.Interfaces(); err != nil { - return false - } - } - zc.toIndex = make(map[string]int, len(ift)) - zc.toName = make(map[int]string, len(ift)) - for _, ifi := range ift { - zc.toIndex[ifi.Name] = ifi.Index - if _, ok := zc.toName[ifi.Index]; !ok { - zc.toName[ifi.Index] = ifi.Name - } - } - return true -} - -func (zc *ipv6ZoneCache) name(zone int) string { - updated := zoneCache.update(nil, false) - zoneCache.RLock() - name, ok := zoneCache.toName[zone] - zoneCache.RUnlock() - if !ok && !updated { - zoneCache.update(nil, true) - zoneCache.RLock() - name, ok = zoneCache.toName[zone] - zoneCache.RUnlock() - } - if !ok { // last resort - name = strconv.Itoa(zone) - } - return name -} - -func (zc *ipv6ZoneCache) index(zone string) int { - updated := zoneCache.update(nil, false) - zoneCache.RLock() - index, ok := zoneCache.toIndex[zone] - zoneCache.RUnlock() - if !ok && !updated { - zoneCache.update(nil, true) - zoneCache.RLock() - index, ok = zoneCache.toIndex[zone] - zoneCache.RUnlock() - } - if !ok { // last resort - index, _ = strconv.Atoi(zone) - } - return index -} diff --git a/vendor/golang.org/x/net/internal/socket/sys_stub.go b/vendor/golang.org/x/net/internal/socket/sys_stub.go deleted file mode 100644 index 2e5b473c66..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_stub.go +++ /dev/null @@ -1,52 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !windows && !zos - -package socket - -import "net" - -const ( - sysAF_UNSPEC = 0x0 - sysAF_INET = 0x2 - sysAF_INET6 = 0xa - - sysSOCK_RAW = 0x3 - - sizeofSockaddrInet4 = 0x10 - sizeofSockaddrInet6 = 0x1c -) - -func marshalInetAddr(ip net.IP, port int, zone string) []byte { - return nil -} - -func parseInetAddr(b []byte, network string) (net.Addr, error) { - return nil, errNotImplemented -} - -func getsockopt(s uintptr, level, name int, b []byte) (int, error) { - return 0, errNotImplemented -} - -func setsockopt(s uintptr, level, name int, b []byte) error { - return errNotImplemented -} - -func recvmsg(s uintptr, buffers [][]byte, oob []byte, flags int, network string) (n, oobn int, recvflags int, from net.Addr, err error) { - return 0, 0, 0, nil, errNotImplemented -} - -func sendmsg(s uintptr, buffers [][]byte, oob []byte, to net.Addr, flags int) (int, error) { - return 0, errNotImplemented -} - -func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) { - return 0, errNotImplemented -} - -func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) { - return 0, errNotImplemented -} diff --git a/vendor/golang.org/x/net/internal/socket/sys_unix.go b/vendor/golang.org/x/net/internal/socket/sys_unix.go deleted file mode 100644 index 93058db5b9..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_unix.go +++ /dev/null @@ -1,121 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris - -package socket - -import ( - "net" - "unsafe" - - "golang.org/x/sys/unix" -) - -//go:linkname syscall_getsockopt syscall.getsockopt -func syscall_getsockopt(s, level, name int, val unsafe.Pointer, vallen *uint32) error - -//go:linkname syscall_setsockopt syscall.setsockopt -func syscall_setsockopt(s, level, name int, val unsafe.Pointer, vallen uintptr) error - -func getsockopt(s uintptr, level, name int, b []byte) (int, error) { - l := uint32(len(b)) - err := syscall_getsockopt(int(s), level, name, unsafe.Pointer(&b[0]), &l) - return int(l), err -} - -func setsockopt(s uintptr, level, name int, b []byte) error { - return syscall_setsockopt(int(s), level, name, unsafe.Pointer(&b[0]), uintptr(len(b))) -} - -func recvmsg(s uintptr, buffers [][]byte, oob []byte, flags int, network string) (n, oobn int, recvflags int, from net.Addr, err error) { - var unixFrom unix.Sockaddr - n, oobn, recvflags, unixFrom, err = unix.RecvmsgBuffers(int(s), buffers, oob, flags) - if unixFrom != nil { - from = sockaddrToAddr(unixFrom, network) - } - return -} - -func sendmsg(s uintptr, buffers [][]byte, oob []byte, to net.Addr, flags int) (int, error) { - var unixTo unix.Sockaddr - if to != nil { - unixTo = addrToSockaddr(to) - } - return unix.SendmsgBuffers(int(s), buffers, oob, unixTo, flags) -} - -// addrToSockaddr converts a net.Addr to a unix.Sockaddr. -func addrToSockaddr(a net.Addr) unix.Sockaddr { - var ( - ip net.IP - port int - zone string - ) - switch a := a.(type) { - case *net.TCPAddr: - ip = a.IP - port = a.Port - zone = a.Zone - case *net.UDPAddr: - ip = a.IP - port = a.Port - zone = a.Zone - case *net.IPAddr: - ip = a.IP - zone = a.Zone - default: - return nil - } - - if ip4 := ip.To4(); ip4 != nil { - sa := unix.SockaddrInet4{Port: port} - copy(sa.Addr[:], ip4) - return &sa - } - - if ip6 := ip.To16(); ip6 != nil && ip.To4() == nil { - sa := unix.SockaddrInet6{Port: port} - copy(sa.Addr[:], ip6) - if zone != "" { - sa.ZoneId = uint32(zoneCache.index(zone)) - } - return &sa - } - - return nil -} - -// sockaddrToAddr converts a unix.Sockaddr to a net.Addr. -func sockaddrToAddr(sa unix.Sockaddr, network string) net.Addr { - var ( - ip net.IP - port int - zone string - ) - switch sa := sa.(type) { - case *unix.SockaddrInet4: - ip = make(net.IP, net.IPv4len) - copy(ip, sa.Addr[:]) - port = sa.Port - case *unix.SockaddrInet6: - ip = make(net.IP, net.IPv6len) - copy(ip, sa.Addr[:]) - port = sa.Port - if sa.ZoneId > 0 { - zone = zoneCache.name(int(sa.ZoneId)) - } - default: - return nil - } - - switch network { - case "tcp", "tcp4", "tcp6": - return &net.TCPAddr{IP: ip, Port: port, Zone: zone} - case "udp", "udp4", "udp6": - return &net.UDPAddr{IP: ip, Port: port, Zone: zone} - default: - return &net.IPAddr{IP: ip, Zone: zone} - } -} diff --git a/vendor/golang.org/x/net/internal/socket/sys_windows.go b/vendor/golang.org/x/net/internal/socket/sys_windows.go deleted file mode 100644 index b738b89ddd..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_windows.go +++ /dev/null @@ -1,55 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -import ( - "net" - "syscall" - "unsafe" - - "golang.org/x/sys/windows" -) - -func probeProtocolStack() int { - var p uintptr - return int(unsafe.Sizeof(p)) -} - -const ( - sysAF_UNSPEC = windows.AF_UNSPEC - sysAF_INET = windows.AF_INET - sysAF_INET6 = windows.AF_INET6 - - sysSOCK_RAW = windows.SOCK_RAW - - sizeofSockaddrInet4 = 0x10 - sizeofSockaddrInet6 = 0x1c -) - -func getsockopt(s uintptr, level, name int, b []byte) (int, error) { - l := uint32(len(b)) - err := syscall.Getsockopt(syscall.Handle(s), int32(level), int32(name), (*byte)(unsafe.Pointer(&b[0])), (*int32)(unsafe.Pointer(&l))) - return int(l), err -} - -func setsockopt(s uintptr, level, name int, b []byte) error { - return syscall.Setsockopt(syscall.Handle(s), int32(level), int32(name), (*byte)(unsafe.Pointer(&b[0])), int32(len(b))) -} - -func recvmsg(s uintptr, buffers [][]byte, oob []byte, flags int, network string) (n, oobn int, recvflags int, from net.Addr, err error) { - return 0, 0, 0, nil, errNotImplemented -} - -func sendmsg(s uintptr, buffers [][]byte, oob []byte, to net.Addr, flags int) (int, error) { - return 0, errNotImplemented -} - -func recvmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) { - return 0, errNotImplemented -} - -func sendmmsg(s uintptr, hs []mmsghdr, flags int) (int, error) { - return 0, errNotImplemented -} diff --git a/vendor/golang.org/x/net/internal/socket/sys_zos_s390x.go b/vendor/golang.org/x/net/internal/socket/sys_zos_s390x.go deleted file mode 100644 index eaa896cb57..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_zos_s390x.go +++ /dev/null @@ -1,66 +0,0 @@ -// Copyright 2020 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -import ( - "net" - "syscall" - "unsafe" -) - -func syscall_syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) -func syscall_syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) - -func probeProtocolStack() int { - return 4 // sizeof(int) on GOOS=zos GOARCH=s390x -} - -func getsockopt(s uintptr, level, name int, b []byte) (int, error) { - l := uint32(len(b)) - _, _, errno := syscall_syscall6(syscall.SYS_GETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(unsafe.Pointer(&l)), 0) - return int(l), errnoErr(errno) -} - -func setsockopt(s uintptr, level, name int, b []byte) error { - _, _, errno := syscall_syscall6(syscall.SYS_SETSOCKOPT, s, uintptr(level), uintptr(name), uintptr(unsafe.Pointer(&b[0])), uintptr(len(b)), 0) - return errnoErr(errno) -} - -func recvmsg(s uintptr, buffers [][]byte, oob []byte, flags int, network string) (n, oobn int, recvflags int, from net.Addr, err error) { - var h msghdr - vs := make([]iovec, len(buffers)) - var sa []byte - if network != "tcp" { - sa = make([]byte, sizeofSockaddrInet6) - } - h.pack(vs, buffers, oob, sa) - sn, _, errno := syscall_syscall(syscall.SYS___RECVMSG_A, s, uintptr(unsafe.Pointer(&h)), uintptr(flags)) - n = int(sn) - oobn = h.controllen() - recvflags = h.flags() - err = errnoErr(errno) - if network != "tcp" { - var err2 error - from, err2 = parseInetAddr(sa, network) - if err2 != nil && err == nil { - err = err2 - } - } - return -} - -func sendmsg(s uintptr, buffers [][]byte, oob []byte, to net.Addr, flags int) (int, error) { - var h msghdr - vs := make([]iovec, len(buffers)) - var sa []byte - if to != nil { - var a [sizeofSockaddrInet6]byte - n := marshalInetAddr(to, a[:]) - sa = a[:n] - } - h.pack(vs, buffers, oob, sa) - n, _, errno := syscall_syscall(syscall.SYS___SENDMSG_A, s, uintptr(unsafe.Pointer(&h)), uintptr(flags)) - return int(n), errnoErr(errno) -} diff --git a/vendor/golang.org/x/net/internal/socket/sys_zos_s390x.s b/vendor/golang.org/x/net/internal/socket/sys_zos_s390x.s deleted file mode 100644 index 60d5839c25..0000000000 --- a/vendor/golang.org/x/net/internal/socket/sys_zos_s390x.s +++ /dev/null @@ -1,11 +0,0 @@ -// Copyright 2020 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -#include "textflag.h" - -TEXT ·syscall_syscall(SB),NOSPLIT,$0 - JMP syscall·_syscall(SB) - -TEXT ·syscall_syscall6(SB),NOSPLIT,$0 - JMP syscall·_syscall6(SB) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_aix_ppc64.go b/vendor/golang.org/x/net/internal/socket/zsys_aix_ppc64.go deleted file mode 100644 index 45bab004c1..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_aix_ppc64.go +++ /dev/null @@ -1,39 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_aix.go - -// Added for go1.11 compatibility -//go:build aix - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen int32 - Control *byte - Controllen uint32 - Flags int32 -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 - Pad_cgo_0 [4]byte -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x30 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_darwin_amd64.go b/vendor/golang.org/x/net/internal/socket/zsys_darwin_amd64.go deleted file mode 100644 index 98dcfe412a..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_darwin_amd64.go +++ /dev/null @@ -1,32 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_darwin.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen int32 - Pad_cgo_1 [4]byte - Control *byte - Controllen uint32 - Flags int32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x30 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_darwin_arm64.go b/vendor/golang.org/x/net/internal/socket/zsys_darwin_arm64.go deleted file mode 100644 index 98dcfe412a..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_darwin_arm64.go +++ /dev/null @@ -1,32 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_darwin.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen int32 - Pad_cgo_1 [4]byte - Control *byte - Controllen uint32 - Flags int32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x30 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_dragonfly_amd64.go b/vendor/golang.org/x/net/internal/socket/zsys_dragonfly_amd64.go deleted file mode 100644 index 636d129aee..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_dragonfly_amd64.go +++ /dev/null @@ -1,32 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_dragonfly.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen int32 - Pad_cgo_1 [4]byte - Control *byte - Controllen uint32 - Flags int32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x30 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_386.go b/vendor/golang.org/x/net/internal/socket/zsys_freebsd_386.go deleted file mode 100644 index 87707fed01..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_386.go +++ /dev/null @@ -1,30 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_freebsd.go - -package socket - -type iovec struct { - Base *byte - Len uint32 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen int32 - Control *byte - Controllen uint32 - Flags int32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x8 - sizeofMsghdr = 0x1c -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_amd64.go b/vendor/golang.org/x/net/internal/socket/zsys_freebsd_amd64.go deleted file mode 100644 index 7db7781129..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_amd64.go +++ /dev/null @@ -1,32 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_freebsd.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen int32 - Pad_cgo_1 [4]byte - Control *byte - Controllen uint32 - Flags int32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x30 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_arm.go b/vendor/golang.org/x/net/internal/socket/zsys_freebsd_arm.go deleted file mode 100644 index 87707fed01..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_arm.go +++ /dev/null @@ -1,30 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_freebsd.go - -package socket - -type iovec struct { - Base *byte - Len uint32 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen int32 - Control *byte - Controllen uint32 - Flags int32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x8 - sizeofMsghdr = 0x1c -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_arm64.go b/vendor/golang.org/x/net/internal/socket/zsys_freebsd_arm64.go deleted file mode 100644 index 7db7781129..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_arm64.go +++ /dev/null @@ -1,32 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_freebsd.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen int32 - Pad_cgo_1 [4]byte - Control *byte - Controllen uint32 - Flags int32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x30 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_riscv64.go b/vendor/golang.org/x/net/internal/socket/zsys_freebsd_riscv64.go deleted file mode 100644 index 965c0b28b5..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_freebsd_riscv64.go +++ /dev/null @@ -1,30 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_freebsd.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen int32 - Control *byte - Controllen uint32 - Flags int32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x30 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_386.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_386.go deleted file mode 100644 index 4c19269bee..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_linux_386.go +++ /dev/null @@ -1,35 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package socket - -type iovec struct { - Base *byte - Len uint32 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen uint32 - Control *byte - Controllen uint32 - Flags int32 -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x8 - sizeofMsghdr = 0x1c -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_amd64.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_amd64.go deleted file mode 100644 index 3dcd5c8eda..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_linux_amd64.go +++ /dev/null @@ -1,38 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen uint64 - Control *byte - Controllen uint64 - Flags int32 - Pad_cgo_1 [4]byte -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 - Pad_cgo_0 [4]byte -} - -type cmsghdr struct { - Len uint64 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x38 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_arm.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_arm.go deleted file mode 100644 index 4c19269bee..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_linux_arm.go +++ /dev/null @@ -1,35 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package socket - -type iovec struct { - Base *byte - Len uint32 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen uint32 - Control *byte - Controllen uint32 - Flags int32 -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x8 - sizeofMsghdr = 0x1c -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_arm64.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_arm64.go deleted file mode 100644 index 3dcd5c8eda..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_linux_arm64.go +++ /dev/null @@ -1,38 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen uint64 - Control *byte - Controllen uint64 - Flags int32 - Pad_cgo_1 [4]byte -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 - Pad_cgo_0 [4]byte -} - -type cmsghdr struct { - Len uint64 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x38 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_loong64.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_loong64.go deleted file mode 100644 index b6fc15a1a2..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_linux_loong64.go +++ /dev/null @@ -1,39 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -//go:build loong64 - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen uint64 - Control *byte - Controllen uint64 - Flags int32 - Pad_cgo_0 [4]byte -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 - Pad_cgo_0 [4]byte -} - -type cmsghdr struct { - Len uint64 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x38 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_mips.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_mips.go deleted file mode 100644 index 4c19269bee..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_linux_mips.go +++ /dev/null @@ -1,35 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package socket - -type iovec struct { - Base *byte - Len uint32 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen uint32 - Control *byte - Controllen uint32 - Flags int32 -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x8 - sizeofMsghdr = 0x1c -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_mips64.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_mips64.go deleted file mode 100644 index 3dcd5c8eda..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_linux_mips64.go +++ /dev/null @@ -1,38 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen uint64 - Control *byte - Controllen uint64 - Flags int32 - Pad_cgo_1 [4]byte -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 - Pad_cgo_0 [4]byte -} - -type cmsghdr struct { - Len uint64 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x38 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_mips64le.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_mips64le.go deleted file mode 100644 index 3dcd5c8eda..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_linux_mips64le.go +++ /dev/null @@ -1,38 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen uint64 - Control *byte - Controllen uint64 - Flags int32 - Pad_cgo_1 [4]byte -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 - Pad_cgo_0 [4]byte -} - -type cmsghdr struct { - Len uint64 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x38 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_mipsle.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_mipsle.go deleted file mode 100644 index 4c19269bee..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_linux_mipsle.go +++ /dev/null @@ -1,35 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package socket - -type iovec struct { - Base *byte - Len uint32 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen uint32 - Control *byte - Controllen uint32 - Flags int32 -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x8 - sizeofMsghdr = 0x1c -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc.go deleted file mode 100644 index 4c19269bee..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc.go +++ /dev/null @@ -1,35 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package socket - -type iovec struct { - Base *byte - Len uint32 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen uint32 - Control *byte - Controllen uint32 - Flags int32 -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x8 - sizeofMsghdr = 0x1c -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64.go deleted file mode 100644 index 3dcd5c8eda..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64.go +++ /dev/null @@ -1,38 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen uint64 - Control *byte - Controllen uint64 - Flags int32 - Pad_cgo_1 [4]byte -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 - Pad_cgo_0 [4]byte -} - -type cmsghdr struct { - Len uint64 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x38 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64le.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64le.go deleted file mode 100644 index 3dcd5c8eda..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_linux_ppc64le.go +++ /dev/null @@ -1,38 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen uint64 - Control *byte - Controllen uint64 - Flags int32 - Pad_cgo_1 [4]byte -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 - Pad_cgo_0 [4]byte -} - -type cmsghdr struct { - Len uint64 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x38 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_riscv64.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_riscv64.go deleted file mode 100644 index e67fc3cbaa..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_linux_riscv64.go +++ /dev/null @@ -1,39 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -//go:build riscv64 - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen uint64 - Control *byte - Controllen uint64 - Flags int32 - Pad_cgo_0 [4]byte -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 - Pad_cgo_0 [4]byte -} - -type cmsghdr struct { - Len uint64 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x38 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_linux_s390x.go b/vendor/golang.org/x/net/internal/socket/zsys_linux_s390x.go deleted file mode 100644 index 3dcd5c8eda..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_linux_s390x.go +++ /dev/null @@ -1,38 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen uint64 - Control *byte - Controllen uint64 - Flags int32 - Pad_cgo_1 [4]byte -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 - Pad_cgo_0 [4]byte -} - -type cmsghdr struct { - Len uint64 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x38 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_netbsd_386.go b/vendor/golang.org/x/net/internal/socket/zsys_netbsd_386.go deleted file mode 100644 index f95572dc00..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_netbsd_386.go +++ /dev/null @@ -1,35 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_netbsd.go - -package socket - -type iovec struct { - Base *byte - Len uint32 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen int32 - Control *byte - Controllen uint32 - Flags int32 -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x8 - sizeofMsghdr = 0x1c -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_netbsd_amd64.go b/vendor/golang.org/x/net/internal/socket/zsys_netbsd_amd64.go deleted file mode 100644 index a92fd60e4d..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_netbsd_amd64.go +++ /dev/null @@ -1,38 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_netbsd.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen int32 - Pad_cgo_1 [4]byte - Control *byte - Controllen uint32 - Flags int32 -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 - Pad_cgo_0 [4]byte -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x30 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_netbsd_arm.go b/vendor/golang.org/x/net/internal/socket/zsys_netbsd_arm.go deleted file mode 100644 index f95572dc00..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_netbsd_arm.go +++ /dev/null @@ -1,35 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_netbsd.go - -package socket - -type iovec struct { - Base *byte - Len uint32 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen int32 - Control *byte - Controllen uint32 - Flags int32 -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x8 - sizeofMsghdr = 0x1c -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_netbsd_arm64.go b/vendor/golang.org/x/net/internal/socket/zsys_netbsd_arm64.go deleted file mode 100644 index a92fd60e4d..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_netbsd_arm64.go +++ /dev/null @@ -1,38 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_netbsd.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen int32 - Pad_cgo_1 [4]byte - Control *byte - Controllen uint32 - Flags int32 -} - -type mmsghdr struct { - Hdr msghdr - Len uint32 - Pad_cgo_0 [4]byte -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x30 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_386.go b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_386.go deleted file mode 100644 index e792ec2115..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_386.go +++ /dev/null @@ -1,30 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_openbsd.go - -package socket - -type iovec struct { - Base *byte - Len uint32 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen uint32 - Control *byte - Controllen uint32 - Flags int32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x8 - sizeofMsghdr = 0x1c -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_amd64.go b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_amd64.go deleted file mode 100644 index b68ff2d57f..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_amd64.go +++ /dev/null @@ -1,32 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_openbsd.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen uint32 - Pad_cgo_1 [4]byte - Control *byte - Controllen uint32 - Flags int32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x30 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_arm.go b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_arm.go deleted file mode 100644 index e792ec2115..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_arm.go +++ /dev/null @@ -1,30 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_openbsd.go - -package socket - -type iovec struct { - Base *byte - Len uint32 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen uint32 - Control *byte - Controllen uint32 - Flags int32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x8 - sizeofMsghdr = 0x1c -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_arm64.go b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_arm64.go deleted file mode 100644 index b68ff2d57f..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_arm64.go +++ /dev/null @@ -1,32 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_openbsd.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen uint32 - Pad_cgo_1 [4]byte - Control *byte - Controllen uint32 - Flags int32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x30 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_mips64.go b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_mips64.go deleted file mode 100644 index 3c9576e2d8..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_mips64.go +++ /dev/null @@ -1,30 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_openbsd.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen uint32 - Control *byte - Controllen uint32 - Flags int32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x30 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_ppc64.go b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_ppc64.go deleted file mode 100644 index 3c9576e2d8..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_ppc64.go +++ /dev/null @@ -1,30 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_openbsd.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen uint32 - Control *byte - Controllen uint32 - Flags int32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x30 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_riscv64.go b/vendor/golang.org/x/net/internal/socket/zsys_openbsd_riscv64.go deleted file mode 100644 index 3c9576e2d8..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_openbsd_riscv64.go +++ /dev/null @@ -1,30 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_openbsd.go - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Iov *iovec - Iovlen uint32 - Control *byte - Controllen uint32 - Flags int32 -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x30 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_solaris_amd64.go b/vendor/golang.org/x/net/internal/socket/zsys_solaris_amd64.go deleted file mode 100644 index 359cfec40a..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_solaris_amd64.go +++ /dev/null @@ -1,32 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_solaris.go - -package socket - -type iovec struct { - Base *int8 - Len uint64 -} - -type msghdr struct { - Name *byte - Namelen uint32 - Pad_cgo_0 [4]byte - Iov *iovec - Iovlen int32 - Pad_cgo_1 [4]byte - Accrights *int8 - Accrightslen int32 - Pad_cgo_2 [4]byte -} - -type cmsghdr struct { - Len uint32 - Level int32 - Type int32 -} - -const ( - sizeofIovec = 0x10 - sizeofMsghdr = 0x30 -) diff --git a/vendor/golang.org/x/net/internal/socket/zsys_zos_s390x.go b/vendor/golang.org/x/net/internal/socket/zsys_zos_s390x.go deleted file mode 100644 index 49b62c8561..0000000000 --- a/vendor/golang.org/x/net/internal/socket/zsys_zos_s390x.go +++ /dev/null @@ -1,28 +0,0 @@ -// Copyright 2020 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socket - -type iovec struct { - Base *byte - Len uint64 -} - -type msghdr struct { - Name *byte - Iov *iovec - Control *byte - Flags int32 - Namelen uint32 - Iovlen int32 - Controllen uint32 -} - -type cmsghdr struct { - Len int32 - Level int32 - Type int32 -} - -const sizeofCmsghdr = 12 diff --git a/vendor/golang.org/x/net/ipv4/batch.go b/vendor/golang.org/x/net/ipv4/batch.go deleted file mode 100644 index 1a3a4fc0c1..0000000000 --- a/vendor/golang.org/x/net/ipv4/batch.go +++ /dev/null @@ -1,194 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "net" - "runtime" - - "golang.org/x/net/internal/socket" -) - -// BUG(mikio): On Windows, the ReadBatch and WriteBatch methods of -// PacketConn are not implemented. - -// BUG(mikio): On Windows, the ReadBatch and WriteBatch methods of -// RawConn are not implemented. - -// A Message represents an IO message. -// -// type Message struct { -// Buffers [][]byte -// OOB []byte -// Addr net.Addr -// N int -// NN int -// Flags int -// } -// -// The Buffers fields represents a list of contiguous buffers, which -// can be used for vectored IO, for example, putting a header and a -// payload in each slice. -// When writing, the Buffers field must contain at least one byte to -// write. -// When reading, the Buffers field will always contain a byte to read. -// -// The OOB field contains protocol-specific control or miscellaneous -// ancillary data known as out-of-band data. -// It can be nil when not required. -// -// The Addr field specifies a destination address when writing. -// It can be nil when the underlying protocol of the endpoint uses -// connection-oriented communication. -// After a successful read, it may contain the source address on the -// received packet. -// -// The N field indicates the number of bytes read or written from/to -// Buffers. -// -// The NN field indicates the number of bytes read or written from/to -// OOB. -// -// The Flags field contains protocol-specific information on the -// received message. -type Message = socket.Message - -// ReadBatch reads a batch of messages. -// -// The provided flags is a set of platform-dependent flags, such as -// syscall.MSG_PEEK. -// -// On a successful read it returns the number of messages received, up -// to len(ms). -// -// On Linux, a batch read will be optimized. -// On other platforms, this method will read only a single message. -// -// Unlike the ReadFrom method, it doesn't strip the IPv4 header -// followed by option headers from the received IPv4 datagram when the -// underlying transport is net.IPConn. Each Buffers field of Message -// must be large enough to accommodate an IPv4 header and option -// headers. -func (c *payloadHandler) ReadBatch(ms []Message, flags int) (int, error) { - if !c.ok() { - return 0, errInvalidConn - } - switch runtime.GOOS { - case "linux": - n, err := c.RecvMsgs([]socket.Message(ms), flags) - if err != nil { - err = &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err} - } - return n, err - default: - n := 1 - err := c.RecvMsg(&ms[0], flags) - if err != nil { - n = 0 - err = &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err} - } - if compatFreeBSD32 && ms[0].NN > 0 { - adjustFreeBSD32(&ms[0]) - } - return n, err - } -} - -// WriteBatch writes a batch of messages. -// -// The provided flags is a set of platform-dependent flags, such as -// syscall.MSG_DONTROUTE. -// -// It returns the number of messages written on a successful write. -// -// On Linux, a batch write will be optimized. -// On other platforms, this method will write only a single message. -func (c *payloadHandler) WriteBatch(ms []Message, flags int) (int, error) { - if !c.ok() { - return 0, errInvalidConn - } - switch runtime.GOOS { - case "linux": - n, err := c.SendMsgs([]socket.Message(ms), flags) - if err != nil { - err = &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err} - } - return n, err - default: - n := 1 - err := c.SendMsg(&ms[0], flags) - if err != nil { - n = 0 - err = &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err} - } - return n, err - } -} - -// ReadBatch reads a batch of messages. -// -// The provided flags is a set of platform-dependent flags, such as -// syscall.MSG_PEEK. -// -// On a successful read it returns the number of messages received, up -// to len(ms). -// -// On Linux, a batch read will be optimized. -// On other platforms, this method will read only a single message. -func (c *packetHandler) ReadBatch(ms []Message, flags int) (int, error) { - if !c.ok() { - return 0, errInvalidConn - } - switch runtime.GOOS { - case "linux": - n, err := c.RecvMsgs([]socket.Message(ms), flags) - if err != nil { - err = &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err} - } - return n, err - default: - n := 1 - err := c.RecvMsg(&ms[0], flags) - if err != nil { - n = 0 - err = &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err} - } - if compatFreeBSD32 && ms[0].NN > 0 { - adjustFreeBSD32(&ms[0]) - } - return n, err - } -} - -// WriteBatch writes a batch of messages. -// -// The provided flags is a set of platform-dependent flags, such as -// syscall.MSG_DONTROUTE. -// -// It returns the number of messages written on a successful write. -// -// On Linux, a batch write will be optimized. -// On other platforms, this method will write only a single message. -func (c *packetHandler) WriteBatch(ms []Message, flags int) (int, error) { - if !c.ok() { - return 0, errInvalidConn - } - switch runtime.GOOS { - case "linux": - n, err := c.SendMsgs([]socket.Message(ms), flags) - if err != nil { - err = &net.OpError{Op: "write", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err} - } - return n, err - default: - n := 1 - err := c.SendMsg(&ms[0], flags) - if err != nil { - n = 0 - err = &net.OpError{Op: "write", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err} - } - return n, err - } -} diff --git a/vendor/golang.org/x/net/ipv4/control.go b/vendor/golang.org/x/net/ipv4/control.go deleted file mode 100644 index a2b02ca95b..0000000000 --- a/vendor/golang.org/x/net/ipv4/control.go +++ /dev/null @@ -1,144 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "fmt" - "net" - "sync" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" -) - -type rawOpt struct { - sync.RWMutex - cflags ControlFlags -} - -func (c *rawOpt) set(f ControlFlags) { c.cflags |= f } -func (c *rawOpt) clear(f ControlFlags) { c.cflags &^= f } -func (c *rawOpt) isset(f ControlFlags) bool { return c.cflags&f != 0 } - -type ControlFlags uint - -const ( - FlagTTL ControlFlags = 1 << iota // pass the TTL on the received packet - FlagSrc // pass the source address on the received packet - FlagDst // pass the destination address on the received packet - FlagInterface // pass the interface index on the received packet -) - -// A ControlMessage represents per packet basis IP-level socket options. -type ControlMessage struct { - // Receiving socket options: SetControlMessage allows to - // receive the options from the protocol stack using ReadFrom - // method of PacketConn or RawConn. - // - // Specifying socket options: ControlMessage for WriteTo - // method of PacketConn or RawConn allows to send the options - // to the protocol stack. - // - TTL int // time-to-live, receiving only - Src net.IP // source address, specifying only - Dst net.IP // destination address, receiving only - IfIndex int // interface index, must be 1 <= value when specifying -} - -func (cm *ControlMessage) String() string { - if cm == nil { - return "" - } - return fmt.Sprintf("ttl=%d src=%v dst=%v ifindex=%d", cm.TTL, cm.Src, cm.Dst, cm.IfIndex) -} - -// Marshal returns the binary encoding of cm. -func (cm *ControlMessage) Marshal() []byte { - if cm == nil { - return nil - } - var m socket.ControlMessage - if ctlOpts[ctlPacketInfo].name > 0 && (cm.Src.To4() != nil || cm.IfIndex > 0) { - m = socket.NewControlMessage([]int{ctlOpts[ctlPacketInfo].length}) - } - if len(m) > 0 { - ctlOpts[ctlPacketInfo].marshal(m, cm) - } - return m -} - -// Parse parses b as a control message and stores the result in cm. -func (cm *ControlMessage) Parse(b []byte) error { - ms, err := socket.ControlMessage(b).Parse() - if err != nil { - return err - } - for _, m := range ms { - lvl, typ, l, err := m.ParseHeader() - if err != nil { - return err - } - if lvl != iana.ProtocolIP { - continue - } - switch { - case typ == ctlOpts[ctlTTL].name && l >= ctlOpts[ctlTTL].length: - ctlOpts[ctlTTL].parse(cm, m.Data(l)) - case typ == ctlOpts[ctlDst].name && l >= ctlOpts[ctlDst].length: - ctlOpts[ctlDst].parse(cm, m.Data(l)) - case typ == ctlOpts[ctlInterface].name && l >= ctlOpts[ctlInterface].length: - ctlOpts[ctlInterface].parse(cm, m.Data(l)) - case typ == ctlOpts[ctlPacketInfo].name && l >= ctlOpts[ctlPacketInfo].length: - ctlOpts[ctlPacketInfo].parse(cm, m.Data(l)) - } - } - return nil -} - -// NewControlMessage returns a new control message. -// -// The returned message is large enough for options specified by cf. -func NewControlMessage(cf ControlFlags) []byte { - opt := rawOpt{cflags: cf} - var l int - if opt.isset(FlagTTL) && ctlOpts[ctlTTL].name > 0 { - l += socket.ControlMessageSpace(ctlOpts[ctlTTL].length) - } - if ctlOpts[ctlPacketInfo].name > 0 { - if opt.isset(FlagSrc | FlagDst | FlagInterface) { - l += socket.ControlMessageSpace(ctlOpts[ctlPacketInfo].length) - } - } else { - if opt.isset(FlagDst) && ctlOpts[ctlDst].name > 0 { - l += socket.ControlMessageSpace(ctlOpts[ctlDst].length) - } - if opt.isset(FlagInterface) && ctlOpts[ctlInterface].name > 0 { - l += socket.ControlMessageSpace(ctlOpts[ctlInterface].length) - } - } - var b []byte - if l > 0 { - b = make([]byte, l) - } - return b -} - -// Ancillary data socket options -const ( - ctlTTL = iota // header field - ctlSrc // header field - ctlDst // header field - ctlInterface // inbound or outbound interface - ctlPacketInfo // inbound or outbound packet path - ctlMax -) - -// A ctlOpt represents a binding for ancillary data socket option. -type ctlOpt struct { - name int // option name, must be equal or greater than 1 - length int // option length - marshal func([]byte, *ControlMessage) []byte - parse func(*ControlMessage, []byte) -} diff --git a/vendor/golang.org/x/net/ipv4/control_bsd.go b/vendor/golang.org/x/net/ipv4/control_bsd.go deleted file mode 100644 index c88da8cbe7..0000000000 --- a/vendor/golang.org/x/net/ipv4/control_bsd.go +++ /dev/null @@ -1,43 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || netbsd || openbsd - -package ipv4 - -import ( - "net" - "syscall" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -func marshalDst(b []byte, cm *ControlMessage) []byte { - m := socket.ControlMessage(b) - m.MarshalHeader(iana.ProtocolIP, unix.IP_RECVDSTADDR, net.IPv4len) - return m.Next(net.IPv4len) -} - -func parseDst(cm *ControlMessage, b []byte) { - if len(cm.Dst) < net.IPv4len { - cm.Dst = make(net.IP, net.IPv4len) - } - copy(cm.Dst, b[:net.IPv4len]) -} - -func marshalInterface(b []byte, cm *ControlMessage) []byte { - m := socket.ControlMessage(b) - m.MarshalHeader(iana.ProtocolIP, sockoptReceiveInterface, syscall.SizeofSockaddrDatalink) - return m.Next(syscall.SizeofSockaddrDatalink) -} - -func parseInterface(cm *ControlMessage, b []byte) { - var sadl syscall.SockaddrDatalink - copy((*[unsafe.Sizeof(sadl)]byte)(unsafe.Pointer(&sadl))[:], b) - cm.IfIndex = int(sadl.Index) -} diff --git a/vendor/golang.org/x/net/ipv4/control_pktinfo.go b/vendor/golang.org/x/net/ipv4/control_pktinfo.go deleted file mode 100644 index 14ae2dae49..0000000000 --- a/vendor/golang.org/x/net/ipv4/control_pktinfo.go +++ /dev/null @@ -1,41 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build darwin || linux || solaris - -package ipv4 - -import ( - "net" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -func marshalPacketInfo(b []byte, cm *ControlMessage) []byte { - m := socket.ControlMessage(b) - m.MarshalHeader(iana.ProtocolIP, unix.IP_PKTINFO, sizeofInetPktinfo) - if cm != nil { - pi := (*inetPktinfo)(unsafe.Pointer(&m.Data(sizeofInetPktinfo)[0])) - if ip := cm.Src.To4(); ip != nil { - copy(pi.Spec_dst[:], ip) - } - if cm.IfIndex > 0 { - pi.setIfindex(cm.IfIndex) - } - } - return m.Next(sizeofInetPktinfo) -} - -func parsePacketInfo(cm *ControlMessage, b []byte) { - pi := (*inetPktinfo)(unsafe.Pointer(&b[0])) - cm.IfIndex = int(pi.Ifindex) - if len(cm.Dst) < net.IPv4len { - cm.Dst = make(net.IP, net.IPv4len) - } - copy(cm.Dst, pi.Addr[:]) -} diff --git a/vendor/golang.org/x/net/ipv4/control_stub.go b/vendor/golang.org/x/net/ipv4/control_stub.go deleted file mode 100644 index 3ba6611609..0000000000 --- a/vendor/golang.org/x/net/ipv4/control_stub.go +++ /dev/null @@ -1,13 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !windows && !zos - -package ipv4 - -import "golang.org/x/net/internal/socket" - -func setControlMessage(c *socket.Conn, opt *rawOpt, cf ControlFlags, on bool) error { - return errNotImplemented -} diff --git a/vendor/golang.org/x/net/ipv4/control_unix.go b/vendor/golang.org/x/net/ipv4/control_unix.go deleted file mode 100644 index 2e765548f3..0000000000 --- a/vendor/golang.org/x/net/ipv4/control_unix.go +++ /dev/null @@ -1,75 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris - -package ipv4 - -import ( - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -func setControlMessage(c *socket.Conn, opt *rawOpt, cf ControlFlags, on bool) error { - opt.Lock() - defer opt.Unlock() - if so, ok := sockOpts[ssoReceiveTTL]; ok && cf&FlagTTL != 0 { - if err := so.SetInt(c, boolint(on)); err != nil { - return err - } - if on { - opt.set(FlagTTL) - } else { - opt.clear(FlagTTL) - } - } - if so, ok := sockOpts[ssoPacketInfo]; ok { - if cf&(FlagSrc|FlagDst|FlagInterface) != 0 { - if err := so.SetInt(c, boolint(on)); err != nil { - return err - } - if on { - opt.set(cf & (FlagSrc | FlagDst | FlagInterface)) - } else { - opt.clear(cf & (FlagSrc | FlagDst | FlagInterface)) - } - } - } else { - if so, ok := sockOpts[ssoReceiveDst]; ok && cf&FlagDst != 0 { - if err := so.SetInt(c, boolint(on)); err != nil { - return err - } - if on { - opt.set(FlagDst) - } else { - opt.clear(FlagDst) - } - } - if so, ok := sockOpts[ssoReceiveInterface]; ok && cf&FlagInterface != 0 { - if err := so.SetInt(c, boolint(on)); err != nil { - return err - } - if on { - opt.set(FlagInterface) - } else { - opt.clear(FlagInterface) - } - } - } - return nil -} - -func marshalTTL(b []byte, cm *ControlMessage) []byte { - m := socket.ControlMessage(b) - m.MarshalHeader(iana.ProtocolIP, unix.IP_RECVTTL, 1) - return m.Next(1) -} - -func parseTTL(cm *ControlMessage, b []byte) { - cm.TTL = int(*(*byte)(unsafe.Pointer(&b[:1][0]))) -} diff --git a/vendor/golang.org/x/net/ipv4/control_windows.go b/vendor/golang.org/x/net/ipv4/control_windows.go deleted file mode 100644 index 82c6306421..0000000000 --- a/vendor/golang.org/x/net/ipv4/control_windows.go +++ /dev/null @@ -1,12 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import "golang.org/x/net/internal/socket" - -func setControlMessage(c *socket.Conn, opt *rawOpt, cf ControlFlags, on bool) error { - // TODO(mikio): implement this - return errNotImplemented -} diff --git a/vendor/golang.org/x/net/ipv4/control_zos.go b/vendor/golang.org/x/net/ipv4/control_zos.go deleted file mode 100644 index de11c42e55..0000000000 --- a/vendor/golang.org/x/net/ipv4/control_zos.go +++ /dev/null @@ -1,88 +0,0 @@ -// Copyright 2020 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "net" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -func marshalPacketInfo(b []byte, cm *ControlMessage) []byte { - m := socket.ControlMessage(b) - m.MarshalHeader(iana.ProtocolIP, unix.IP_PKTINFO, sizeofInetPktinfo) - if cm != nil { - pi := (*inetPktinfo)(unsafe.Pointer(&m.Data(sizeofInetPktinfo)[0])) - if ip := cm.Src.To4(); ip != nil { - copy(pi.Addr[:], ip) - } - if cm.IfIndex > 0 { - pi.setIfindex(cm.IfIndex) - } - } - return m.Next(sizeofInetPktinfo) -} - -func parsePacketInfo(cm *ControlMessage, b []byte) { - pi := (*inetPktinfo)(unsafe.Pointer(&b[0])) - cm.IfIndex = int(pi.Ifindex) - if len(cm.Dst) < net.IPv4len { - cm.Dst = make(net.IP, net.IPv4len) - } - copy(cm.Dst, pi.Addr[:]) -} - -func setControlMessage(c *socket.Conn, opt *rawOpt, cf ControlFlags, on bool) error { - opt.Lock() - defer opt.Unlock() - if so, ok := sockOpts[ssoReceiveTTL]; ok && cf&FlagTTL != 0 { - if err := so.SetInt(c, boolint(on)); err != nil { - return err - } - if on { - opt.set(FlagTTL) - } else { - opt.clear(FlagTTL) - } - } - if so, ok := sockOpts[ssoPacketInfo]; ok { - if cf&(FlagSrc|FlagDst|FlagInterface) != 0 { - if err := so.SetInt(c, boolint(on)); err != nil { - return err - } - if on { - opt.set(cf & (FlagSrc | FlagDst | FlagInterface)) - } else { - opt.clear(cf & (FlagSrc | FlagDst | FlagInterface)) - } - } - } else { - if so, ok := sockOpts[ssoReceiveDst]; ok && cf&FlagDst != 0 { - if err := so.SetInt(c, boolint(on)); err != nil { - return err - } - if on { - opt.set(FlagDst) - } else { - opt.clear(FlagDst) - } - } - if so, ok := sockOpts[ssoReceiveInterface]; ok && cf&FlagInterface != 0 { - if err := so.SetInt(c, boolint(on)); err != nil { - return err - } - if on { - opt.set(FlagInterface) - } else { - opt.clear(FlagInterface) - } - } - } - return nil -} diff --git a/vendor/golang.org/x/net/ipv4/dgramopt.go b/vendor/golang.org/x/net/ipv4/dgramopt.go deleted file mode 100644 index c191c22aba..0000000000 --- a/vendor/golang.org/x/net/ipv4/dgramopt.go +++ /dev/null @@ -1,264 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "net" - - "golang.org/x/net/bpf" -) - -// MulticastTTL returns the time-to-live field value for outgoing -// multicast packets. -func (c *dgramOpt) MulticastTTL() (int, error) { - if !c.ok() { - return 0, errInvalidConn - } - so, ok := sockOpts[ssoMulticastTTL] - if !ok { - return 0, errNotImplemented - } - return so.GetInt(c.Conn) -} - -// SetMulticastTTL sets the time-to-live field value for future -// outgoing multicast packets. -func (c *dgramOpt) SetMulticastTTL(ttl int) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoMulticastTTL] - if !ok { - return errNotImplemented - } - return so.SetInt(c.Conn, ttl) -} - -// MulticastInterface returns the default interface for multicast -// packet transmissions. -func (c *dgramOpt) MulticastInterface() (*net.Interface, error) { - if !c.ok() { - return nil, errInvalidConn - } - so, ok := sockOpts[ssoMulticastInterface] - if !ok { - return nil, errNotImplemented - } - return so.getMulticastInterface(c.Conn) -} - -// SetMulticastInterface sets the default interface for future -// multicast packet transmissions. -func (c *dgramOpt) SetMulticastInterface(ifi *net.Interface) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoMulticastInterface] - if !ok { - return errNotImplemented - } - return so.setMulticastInterface(c.Conn, ifi) -} - -// MulticastLoopback reports whether transmitted multicast packets -// should be copied and send back to the originator. -func (c *dgramOpt) MulticastLoopback() (bool, error) { - if !c.ok() { - return false, errInvalidConn - } - so, ok := sockOpts[ssoMulticastLoopback] - if !ok { - return false, errNotImplemented - } - on, err := so.GetInt(c.Conn) - if err != nil { - return false, err - } - return on == 1, nil -} - -// SetMulticastLoopback sets whether transmitted multicast packets -// should be copied and send back to the originator. -func (c *dgramOpt) SetMulticastLoopback(on bool) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoMulticastLoopback] - if !ok { - return errNotImplemented - } - return so.SetInt(c.Conn, boolint(on)) -} - -// JoinGroup joins the group address group on the interface ifi. -// By default all sources that can cast data to group are accepted. -// It's possible to mute and unmute data transmission from a specific -// source by using ExcludeSourceSpecificGroup and -// IncludeSourceSpecificGroup. -// JoinGroup uses the system assigned multicast interface when ifi is -// nil, although this is not recommended because the assignment -// depends on platforms and sometimes it might require routing -// configuration. -func (c *dgramOpt) JoinGroup(ifi *net.Interface, group net.Addr) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoJoinGroup] - if !ok { - return errNotImplemented - } - grp := netAddrToIP4(group) - if grp == nil { - return errMissingAddress - } - return so.setGroup(c.Conn, ifi, grp) -} - -// LeaveGroup leaves the group address group on the interface ifi -// regardless of whether the group is any-source group or -// source-specific group. -func (c *dgramOpt) LeaveGroup(ifi *net.Interface, group net.Addr) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoLeaveGroup] - if !ok { - return errNotImplemented - } - grp := netAddrToIP4(group) - if grp == nil { - return errMissingAddress - } - return so.setGroup(c.Conn, ifi, grp) -} - -// JoinSourceSpecificGroup joins the source-specific group comprising -// group and source on the interface ifi. -// JoinSourceSpecificGroup uses the system assigned multicast -// interface when ifi is nil, although this is not recommended because -// the assignment depends on platforms and sometimes it might require -// routing configuration. -func (c *dgramOpt) JoinSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoJoinSourceGroup] - if !ok { - return errNotImplemented - } - grp := netAddrToIP4(group) - if grp == nil { - return errMissingAddress - } - src := netAddrToIP4(source) - if src == nil { - return errMissingAddress - } - return so.setSourceGroup(c.Conn, ifi, grp, src) -} - -// LeaveSourceSpecificGroup leaves the source-specific group on the -// interface ifi. -func (c *dgramOpt) LeaveSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoLeaveSourceGroup] - if !ok { - return errNotImplemented - } - grp := netAddrToIP4(group) - if grp == nil { - return errMissingAddress - } - src := netAddrToIP4(source) - if src == nil { - return errMissingAddress - } - return so.setSourceGroup(c.Conn, ifi, grp, src) -} - -// ExcludeSourceSpecificGroup excludes the source-specific group from -// the already joined any-source groups by JoinGroup on the interface -// ifi. -func (c *dgramOpt) ExcludeSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoBlockSourceGroup] - if !ok { - return errNotImplemented - } - grp := netAddrToIP4(group) - if grp == nil { - return errMissingAddress - } - src := netAddrToIP4(source) - if src == nil { - return errMissingAddress - } - return so.setSourceGroup(c.Conn, ifi, grp, src) -} - -// IncludeSourceSpecificGroup includes the excluded source-specific -// group by ExcludeSourceSpecificGroup again on the interface ifi. -func (c *dgramOpt) IncludeSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoUnblockSourceGroup] - if !ok { - return errNotImplemented - } - grp := netAddrToIP4(group) - if grp == nil { - return errMissingAddress - } - src := netAddrToIP4(source) - if src == nil { - return errMissingAddress - } - return so.setSourceGroup(c.Conn, ifi, grp, src) -} - -// ICMPFilter returns an ICMP filter. -// Currently only Linux supports this. -func (c *dgramOpt) ICMPFilter() (*ICMPFilter, error) { - if !c.ok() { - return nil, errInvalidConn - } - so, ok := sockOpts[ssoICMPFilter] - if !ok { - return nil, errNotImplemented - } - return so.getICMPFilter(c.Conn) -} - -// SetICMPFilter deploys the ICMP filter. -// Currently only Linux supports this. -func (c *dgramOpt) SetICMPFilter(f *ICMPFilter) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoICMPFilter] - if !ok { - return errNotImplemented - } - return so.setICMPFilter(c.Conn, f) -} - -// SetBPF attaches a BPF program to the connection. -// -// Only supported on Linux. -func (c *dgramOpt) SetBPF(filter []bpf.RawInstruction) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoAttachFilter] - if !ok { - return errNotImplemented - } - return so.setBPF(c.Conn, filter) -} diff --git a/vendor/golang.org/x/net/ipv4/doc.go b/vendor/golang.org/x/net/ipv4/doc.go deleted file mode 100644 index 6fbdc52b96..0000000000 --- a/vendor/golang.org/x/net/ipv4/doc.go +++ /dev/null @@ -1,240 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package ipv4 implements IP-level socket options for the Internet -// Protocol version 4. -// -// The package provides IP-level socket options that allow -// manipulation of IPv4 facilities. -// -// The IPv4 protocol and basic host requirements for IPv4 are defined -// in RFC 791 and RFC 1122. -// Host extensions for multicasting and socket interface extensions -// for multicast source filters are defined in RFC 1112 and RFC 3678. -// IGMPv1, IGMPv2 and IGMPv3 are defined in RFC 1112, RFC 2236 and RFC -// 3376. -// Source-specific multicast is defined in RFC 4607. -// -// # Unicasting -// -// The options for unicasting are available for net.TCPConn, -// net.UDPConn and net.IPConn which are created as network connections -// that use the IPv4 transport. When a single TCP connection carrying -// a data flow of multiple packets needs to indicate the flow is -// important, Conn is used to set the type-of-service field on the -// IPv4 header for each packet. -// -// ln, err := net.Listen("tcp4", "0.0.0.0:1024") -// if err != nil { -// // error handling -// } -// defer ln.Close() -// for { -// c, err := ln.Accept() -// if err != nil { -// // error handling -// } -// go func(c net.Conn) { -// defer c.Close() -// -// The outgoing packets will be labeled DiffServ assured forwarding -// class 1 low drop precedence, known as AF11 packets. -// -// if err := ipv4.NewConn(c).SetTOS(0x28); err != nil { -// // error handling -// } -// if _, err := c.Write(data); err != nil { -// // error handling -// } -// }(c) -// } -// -// # Multicasting -// -// The options for multicasting are available for net.UDPConn and -// net.IPConn which are created as network connections that use the -// IPv4 transport. A few network facilities must be prepared before -// you begin multicasting, at a minimum joining network interfaces and -// multicast groups. -// -// en0, err := net.InterfaceByName("en0") -// if err != nil { -// // error handling -// } -// en1, err := net.InterfaceByIndex(911) -// if err != nil { -// // error handling -// } -// group := net.IPv4(224, 0, 0, 250) -// -// First, an application listens to an appropriate address with an -// appropriate service port. -// -// c, err := net.ListenPacket("udp4", "0.0.0.0:1024") -// if err != nil { -// // error handling -// } -// defer c.Close() -// -// Second, the application joins multicast groups, starts listening to -// the groups on the specified network interfaces. Note that the -// service port for transport layer protocol does not matter with this -// operation as joining groups affects only network and link layer -// protocols, such as IPv4 and Ethernet. -// -// p := ipv4.NewPacketConn(c) -// if err := p.JoinGroup(en0, &net.UDPAddr{IP: group}); err != nil { -// // error handling -// } -// if err := p.JoinGroup(en1, &net.UDPAddr{IP: group}); err != nil { -// // error handling -// } -// -// The application might set per packet control message transmissions -// between the protocol stack within the kernel. When the application -// needs a destination address on an incoming packet, -// SetControlMessage of PacketConn is used to enable control message -// transmissions. -// -// if err := p.SetControlMessage(ipv4.FlagDst, true); err != nil { -// // error handling -// } -// -// The application could identify whether the received packets are -// of interest by using the control message that contains the -// destination address of the received packet. -// -// b := make([]byte, 1500) -// for { -// n, cm, src, err := p.ReadFrom(b) -// if err != nil { -// // error handling -// } -// if cm.Dst.IsMulticast() { -// if cm.Dst.Equal(group) { -// // joined group, do something -// } else { -// // unknown group, discard -// continue -// } -// } -// -// The application can also send both unicast and multicast packets. -// -// p.SetTOS(0x0) -// p.SetTTL(16) -// if _, err := p.WriteTo(data, nil, src); err != nil { -// // error handling -// } -// dst := &net.UDPAddr{IP: group, Port: 1024} -// for _, ifi := range []*net.Interface{en0, en1} { -// if err := p.SetMulticastInterface(ifi); err != nil { -// // error handling -// } -// p.SetMulticastTTL(2) -// if _, err := p.WriteTo(data, nil, dst); err != nil { -// // error handling -// } -// } -// } -// -// # More multicasting -// -// An application that uses PacketConn or RawConn may join multiple -// multicast groups. For example, a UDP listener with port 1024 might -// join two different groups across over two different network -// interfaces by using: -// -// c, err := net.ListenPacket("udp4", "0.0.0.0:1024") -// if err != nil { -// // error handling -// } -// defer c.Close() -// p := ipv4.NewPacketConn(c) -// if err := p.JoinGroup(en0, &net.UDPAddr{IP: net.IPv4(224, 0, 0, 248)}); err != nil { -// // error handling -// } -// if err := p.JoinGroup(en0, &net.UDPAddr{IP: net.IPv4(224, 0, 0, 249)}); err != nil { -// // error handling -// } -// if err := p.JoinGroup(en1, &net.UDPAddr{IP: net.IPv4(224, 0, 0, 249)}); err != nil { -// // error handling -// } -// -// It is possible for multiple UDP listeners that listen on the same -// UDP port to join the same multicast group. The net package will -// provide a socket that listens to a wildcard address with reusable -// UDP port when an appropriate multicast address prefix is passed to -// the net.ListenPacket or net.ListenUDP. -// -// c1, err := net.ListenPacket("udp4", "224.0.0.0:1024") -// if err != nil { -// // error handling -// } -// defer c1.Close() -// c2, err := net.ListenPacket("udp4", "224.0.0.0:1024") -// if err != nil { -// // error handling -// } -// defer c2.Close() -// p1 := ipv4.NewPacketConn(c1) -// if err := p1.JoinGroup(en0, &net.UDPAddr{IP: net.IPv4(224, 0, 0, 248)}); err != nil { -// // error handling -// } -// p2 := ipv4.NewPacketConn(c2) -// if err := p2.JoinGroup(en0, &net.UDPAddr{IP: net.IPv4(224, 0, 0, 248)}); err != nil { -// // error handling -// } -// -// Also it is possible for the application to leave or rejoin a -// multicast group on the network interface. -// -// if err := p.LeaveGroup(en0, &net.UDPAddr{IP: net.IPv4(224, 0, 0, 248)}); err != nil { -// // error handling -// } -// if err := p.JoinGroup(en0, &net.UDPAddr{IP: net.IPv4(224, 0, 0, 250)}); err != nil { -// // error handling -// } -// -// # Source-specific multicasting -// -// An application that uses PacketConn or RawConn on IGMPv3 supported -// platform is able to join source-specific multicast groups. -// The application may use JoinSourceSpecificGroup and -// LeaveSourceSpecificGroup for the operation known as "include" mode, -// -// ssmgroup := net.UDPAddr{IP: net.IPv4(232, 7, 8, 9)} -// ssmsource := net.UDPAddr{IP: net.IPv4(192, 168, 0, 1)} -// if err := p.JoinSourceSpecificGroup(en0, &ssmgroup, &ssmsource); err != nil { -// // error handling -// } -// if err := p.LeaveSourceSpecificGroup(en0, &ssmgroup, &ssmsource); err != nil { -// // error handling -// } -// -// or JoinGroup, ExcludeSourceSpecificGroup, -// IncludeSourceSpecificGroup and LeaveGroup for the operation known -// as "exclude" mode. -// -// exclsource := net.UDPAddr{IP: net.IPv4(192, 168, 0, 254)} -// if err := p.JoinGroup(en0, &ssmgroup); err != nil { -// // error handling -// } -// if err := p.ExcludeSourceSpecificGroup(en0, &ssmgroup, &exclsource); err != nil { -// // error handling -// } -// if err := p.LeaveGroup(en0, &ssmgroup); err != nil { -// // error handling -// } -// -// Note that it depends on each platform implementation what happens -// when an application which runs on IGMPv3 unsupported platform uses -// JoinSourceSpecificGroup and LeaveSourceSpecificGroup. -// In general the platform tries to fall back to conversations using -// IGMPv1 or IGMPv2 and starts to listen to multicast traffic. -// In the fallback case, ExcludeSourceSpecificGroup and -// IncludeSourceSpecificGroup may return an error. -package ipv4 // import "golang.org/x/net/ipv4" - -// BUG(mikio): This package is not implemented on JS, NaCl and Plan 9. diff --git a/vendor/golang.org/x/net/ipv4/endpoint.go b/vendor/golang.org/x/net/ipv4/endpoint.go deleted file mode 100644 index 4a6d7a85ee..0000000000 --- a/vendor/golang.org/x/net/ipv4/endpoint.go +++ /dev/null @@ -1,186 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "net" - "time" - - "golang.org/x/net/internal/socket" -) - -// BUG(mikio): On Windows, the JoinSourceSpecificGroup, -// LeaveSourceSpecificGroup, ExcludeSourceSpecificGroup and -// IncludeSourceSpecificGroup methods of PacketConn and RawConn are -// not implemented. - -// A Conn represents a network endpoint that uses the IPv4 transport. -// It is used to control basic IP-level socket options such as TOS and -// TTL. -type Conn struct { - genericOpt -} - -type genericOpt struct { - *socket.Conn -} - -func (c *genericOpt) ok() bool { return c != nil && c.Conn != nil } - -// NewConn returns a new Conn. -func NewConn(c net.Conn) *Conn { - cc, _ := socket.NewConn(c) - return &Conn{ - genericOpt: genericOpt{Conn: cc}, - } -} - -// A PacketConn represents a packet network endpoint that uses the -// IPv4 transport. It is used to control several IP-level socket -// options including multicasting. It also provides datagram based -// network I/O methods specific to the IPv4 and higher layer protocols -// such as UDP. -type PacketConn struct { - genericOpt - dgramOpt - payloadHandler -} - -type dgramOpt struct { - *socket.Conn -} - -func (c *dgramOpt) ok() bool { return c != nil && c.Conn != nil } - -// SetControlMessage sets the per packet IP-level socket options. -func (c *PacketConn) SetControlMessage(cf ControlFlags, on bool) error { - if !c.payloadHandler.ok() { - return errInvalidConn - } - return setControlMessage(c.dgramOpt.Conn, &c.payloadHandler.rawOpt, cf, on) -} - -// SetDeadline sets the read and write deadlines associated with the -// endpoint. -func (c *PacketConn) SetDeadline(t time.Time) error { - if !c.payloadHandler.ok() { - return errInvalidConn - } - return c.payloadHandler.PacketConn.SetDeadline(t) -} - -// SetReadDeadline sets the read deadline associated with the -// endpoint. -func (c *PacketConn) SetReadDeadline(t time.Time) error { - if !c.payloadHandler.ok() { - return errInvalidConn - } - return c.payloadHandler.PacketConn.SetReadDeadline(t) -} - -// SetWriteDeadline sets the write deadline associated with the -// endpoint. -func (c *PacketConn) SetWriteDeadline(t time.Time) error { - if !c.payloadHandler.ok() { - return errInvalidConn - } - return c.payloadHandler.PacketConn.SetWriteDeadline(t) -} - -// Close closes the endpoint. -func (c *PacketConn) Close() error { - if !c.payloadHandler.ok() { - return errInvalidConn - } - return c.payloadHandler.PacketConn.Close() -} - -// NewPacketConn returns a new PacketConn using c as its underlying -// transport. -func NewPacketConn(c net.PacketConn) *PacketConn { - cc, _ := socket.NewConn(c.(net.Conn)) - p := &PacketConn{ - genericOpt: genericOpt{Conn: cc}, - dgramOpt: dgramOpt{Conn: cc}, - payloadHandler: payloadHandler{PacketConn: c, Conn: cc}, - } - return p -} - -// A RawConn represents a packet network endpoint that uses the IPv4 -// transport. It is used to control several IP-level socket options -// including IPv4 header manipulation. It also provides datagram -// based network I/O methods specific to the IPv4 and higher layer -// protocols that handle IPv4 datagram directly such as OSPF, GRE. -type RawConn struct { - genericOpt - dgramOpt - packetHandler -} - -// SetControlMessage sets the per packet IP-level socket options. -func (c *RawConn) SetControlMessage(cf ControlFlags, on bool) error { - if !c.packetHandler.ok() { - return errInvalidConn - } - return setControlMessage(c.dgramOpt.Conn, &c.packetHandler.rawOpt, cf, on) -} - -// SetDeadline sets the read and write deadlines associated with the -// endpoint. -func (c *RawConn) SetDeadline(t time.Time) error { - if !c.packetHandler.ok() { - return errInvalidConn - } - return c.packetHandler.IPConn.SetDeadline(t) -} - -// SetReadDeadline sets the read deadline associated with the -// endpoint. -func (c *RawConn) SetReadDeadline(t time.Time) error { - if !c.packetHandler.ok() { - return errInvalidConn - } - return c.packetHandler.IPConn.SetReadDeadline(t) -} - -// SetWriteDeadline sets the write deadline associated with the -// endpoint. -func (c *RawConn) SetWriteDeadline(t time.Time) error { - if !c.packetHandler.ok() { - return errInvalidConn - } - return c.packetHandler.IPConn.SetWriteDeadline(t) -} - -// Close closes the endpoint. -func (c *RawConn) Close() error { - if !c.packetHandler.ok() { - return errInvalidConn - } - return c.packetHandler.IPConn.Close() -} - -// NewRawConn returns a new RawConn using c as its underlying -// transport. -func NewRawConn(c net.PacketConn) (*RawConn, error) { - cc, err := socket.NewConn(c.(net.Conn)) - if err != nil { - return nil, err - } - r := &RawConn{ - genericOpt: genericOpt{Conn: cc}, - dgramOpt: dgramOpt{Conn: cc}, - packetHandler: packetHandler{IPConn: c.(*net.IPConn), Conn: cc}, - } - so, ok := sockOpts[ssoHeaderPrepend] - if !ok { - return nil, errNotImplemented - } - if err := so.SetInt(r.dgramOpt.Conn, boolint(true)); err != nil { - return nil, err - } - return r, nil -} diff --git a/vendor/golang.org/x/net/ipv4/genericopt.go b/vendor/golang.org/x/net/ipv4/genericopt.go deleted file mode 100644 index 51c12371eb..0000000000 --- a/vendor/golang.org/x/net/ipv4/genericopt.go +++ /dev/null @@ -1,55 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -// TOS returns the type-of-service field value for outgoing packets. -func (c *genericOpt) TOS() (int, error) { - if !c.ok() { - return 0, errInvalidConn - } - so, ok := sockOpts[ssoTOS] - if !ok { - return 0, errNotImplemented - } - return so.GetInt(c.Conn) -} - -// SetTOS sets the type-of-service field value for future outgoing -// packets. -func (c *genericOpt) SetTOS(tos int) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoTOS] - if !ok { - return errNotImplemented - } - return so.SetInt(c.Conn, tos) -} - -// TTL returns the time-to-live field value for outgoing packets. -func (c *genericOpt) TTL() (int, error) { - if !c.ok() { - return 0, errInvalidConn - } - so, ok := sockOpts[ssoTTL] - if !ok { - return 0, errNotImplemented - } - return so.GetInt(c.Conn) -} - -// SetTTL sets the time-to-live field value for future outgoing -// packets. -func (c *genericOpt) SetTTL(ttl int) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoTTL] - if !ok { - return errNotImplemented - } - return so.SetInt(c.Conn, ttl) -} diff --git a/vendor/golang.org/x/net/ipv4/header.go b/vendor/golang.org/x/net/ipv4/header.go deleted file mode 100644 index ee6edae14b..0000000000 --- a/vendor/golang.org/x/net/ipv4/header.go +++ /dev/null @@ -1,170 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "encoding/binary" - "fmt" - "net" - "runtime" -) - -const ( - Version = 4 // protocol version - HeaderLen = 20 // header length without extension headers -) - -type HeaderFlags int - -const ( - MoreFragments HeaderFlags = 1 << iota // more fragments flag - DontFragment // don't fragment flag -) - -// A Header represents an IPv4 header. -type Header struct { - Version int // protocol version - Len int // header length - TOS int // type-of-service - TotalLen int // packet total length - ID int // identification - Flags HeaderFlags // flags - FragOff int // fragment offset - TTL int // time-to-live - Protocol int // next protocol - Checksum int // checksum - Src net.IP // source address - Dst net.IP // destination address - Options []byte // options, extension headers -} - -func (h *Header) String() string { - if h == nil { - return "" - } - return fmt.Sprintf("ver=%d hdrlen=%d tos=%#x totallen=%d id=%#x flags=%#x fragoff=%#x ttl=%d proto=%d cksum=%#x src=%v dst=%v", h.Version, h.Len, h.TOS, h.TotalLen, h.ID, h.Flags, h.FragOff, h.TTL, h.Protocol, h.Checksum, h.Src, h.Dst) -} - -// Marshal returns the binary encoding of h. -// -// The returned slice is in the format used by a raw IP socket on the -// local system. -// This may differ from the wire format, depending on the system. -func (h *Header) Marshal() ([]byte, error) { - if h == nil { - return nil, errNilHeader - } - if h.Len < HeaderLen { - return nil, errHeaderTooShort - } - hdrlen := HeaderLen + len(h.Options) - b := make([]byte, hdrlen) - b[0] = byte(Version<<4 | (hdrlen >> 2 & 0x0f)) - b[1] = byte(h.TOS) - flagsAndFragOff := (h.FragOff & 0x1fff) | int(h.Flags<<13) - switch runtime.GOOS { - case "darwin", "ios", "dragonfly", "netbsd": - binary.NativeEndian.PutUint16(b[2:4], uint16(h.TotalLen)) - binary.NativeEndian.PutUint16(b[6:8], uint16(flagsAndFragOff)) - case "freebsd": - if freebsdVersion < 1100000 { - binary.NativeEndian.PutUint16(b[2:4], uint16(h.TotalLen)) - binary.NativeEndian.PutUint16(b[6:8], uint16(flagsAndFragOff)) - } else { - binary.BigEndian.PutUint16(b[2:4], uint16(h.TotalLen)) - binary.BigEndian.PutUint16(b[6:8], uint16(flagsAndFragOff)) - } - default: - binary.BigEndian.PutUint16(b[2:4], uint16(h.TotalLen)) - binary.BigEndian.PutUint16(b[6:8], uint16(flagsAndFragOff)) - } - binary.BigEndian.PutUint16(b[4:6], uint16(h.ID)) - b[8] = byte(h.TTL) - b[9] = byte(h.Protocol) - binary.BigEndian.PutUint16(b[10:12], uint16(h.Checksum)) - if ip := h.Src.To4(); ip != nil { - copy(b[12:16], ip[:net.IPv4len]) - } - if ip := h.Dst.To4(); ip != nil { - copy(b[16:20], ip[:net.IPv4len]) - } else { - return nil, errMissingAddress - } - if len(h.Options) > 0 { - copy(b[HeaderLen:], h.Options) - } - return b, nil -} - -// Parse parses b as an IPv4 header and stores the result in h. -// -// The provided b must be in the format used by a raw IP socket on the -// local system. -// This may differ from the wire format, depending on the system. -func (h *Header) Parse(b []byte) error { - if h == nil || b == nil { - return errNilHeader - } - if len(b) < HeaderLen { - return errHeaderTooShort - } - hdrlen := int(b[0]&0x0f) << 2 - if len(b) < hdrlen { - return errExtHeaderTooShort - } - h.Version = int(b[0] >> 4) - h.Len = hdrlen - h.TOS = int(b[1]) - h.ID = int(binary.BigEndian.Uint16(b[4:6])) - h.TTL = int(b[8]) - h.Protocol = int(b[9]) - h.Checksum = int(binary.BigEndian.Uint16(b[10:12])) - h.Src = net.IPv4(b[12], b[13], b[14], b[15]) - h.Dst = net.IPv4(b[16], b[17], b[18], b[19]) - switch runtime.GOOS { - case "darwin", "ios", "dragonfly", "netbsd": - h.TotalLen = int(binary.NativeEndian.Uint16(b[2:4])) + hdrlen - h.FragOff = int(binary.NativeEndian.Uint16(b[6:8])) - case "freebsd": - if freebsdVersion < 1100000 { - h.TotalLen = int(binary.NativeEndian.Uint16(b[2:4])) - if freebsdVersion < 1000000 { - h.TotalLen += hdrlen - } - h.FragOff = int(binary.NativeEndian.Uint16(b[6:8])) - } else { - h.TotalLen = int(binary.BigEndian.Uint16(b[2:4])) - h.FragOff = int(binary.BigEndian.Uint16(b[6:8])) - } - default: - h.TotalLen = int(binary.BigEndian.Uint16(b[2:4])) - h.FragOff = int(binary.BigEndian.Uint16(b[6:8])) - } - h.Flags = HeaderFlags(h.FragOff&0xe000) >> 13 - h.FragOff = h.FragOff & 0x1fff - optlen := hdrlen - HeaderLen - if optlen > 0 && len(b) >= hdrlen { - if cap(h.Options) < optlen { - h.Options = make([]byte, optlen) - } else { - h.Options = h.Options[:optlen] - } - copy(h.Options, b[HeaderLen:hdrlen]) - } - return nil -} - -// ParseHeader parses b as an IPv4 header. -// -// The provided b must be in the format used by a raw IP socket on the -// local system. -// This may differ from the wire format, depending on the system. -func ParseHeader(b []byte) (*Header, error) { - h := new(Header) - if err := h.Parse(b); err != nil { - return nil, err - } - return h, nil -} diff --git a/vendor/golang.org/x/net/ipv4/helper.go b/vendor/golang.org/x/net/ipv4/helper.go deleted file mode 100644 index e845a7376e..0000000000 --- a/vendor/golang.org/x/net/ipv4/helper.go +++ /dev/null @@ -1,77 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "errors" - "net" - "runtime" - - "golang.org/x/net/internal/socket" -) - -var ( - errInvalidConn = errors.New("invalid connection") - errMissingAddress = errors.New("missing address") - errNilHeader = errors.New("nil header") - errHeaderTooShort = errors.New("header too short") - errExtHeaderTooShort = errors.New("extension header too short") - errInvalidConnType = errors.New("invalid conn type") - errNotImplemented = errors.New("not implemented on " + runtime.GOOS + "/" + runtime.GOARCH) - - // See https://www.freebsd.org/doc/en/books/porters-handbook/versions.html. - freebsdVersion uint32 - compatFreeBSD32 bool // 386 emulation on amd64 -) - -// See golang.org/issue/30899. -func adjustFreeBSD32(m *socket.Message) { - // FreeBSD 12.0-RELEASE is affected by https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236737 - if 1200086 <= freebsdVersion && freebsdVersion < 1201000 { - l := (m.NN + 4 - 1) &^ (4 - 1) - if m.NN < l && l <= len(m.OOB) { - m.NN = l - } - } -} - -func boolint(b bool) int { - if b { - return 1 - } - return 0 -} - -func netAddrToIP4(a net.Addr) net.IP { - switch v := a.(type) { - case *net.UDPAddr: - if ip := v.IP.To4(); ip != nil { - return ip - } - case *net.IPAddr: - if ip := v.IP.To4(); ip != nil { - return ip - } - } - return nil -} - -func opAddr(a net.Addr) net.Addr { - switch a.(type) { - case *net.TCPAddr: - if a == nil { - return nil - } - case *net.UDPAddr: - if a == nil { - return nil - } - case *net.IPAddr: - if a == nil { - return nil - } - } - return a -} diff --git a/vendor/golang.org/x/net/ipv4/iana.go b/vendor/golang.org/x/net/ipv4/iana.go deleted file mode 100644 index 4375b4099b..0000000000 --- a/vendor/golang.org/x/net/ipv4/iana.go +++ /dev/null @@ -1,38 +0,0 @@ -// go generate gen.go -// Code generated by the command above; DO NOT EDIT. - -package ipv4 - -// Internet Control Message Protocol (ICMP) Parameters, Updated: 2018-02-26 -const ( - ICMPTypeEchoReply ICMPType = 0 // Echo Reply - ICMPTypeDestinationUnreachable ICMPType = 3 // Destination Unreachable - ICMPTypeRedirect ICMPType = 5 // Redirect - ICMPTypeEcho ICMPType = 8 // Echo - ICMPTypeRouterAdvertisement ICMPType = 9 // Router Advertisement - ICMPTypeRouterSolicitation ICMPType = 10 // Router Solicitation - ICMPTypeTimeExceeded ICMPType = 11 // Time Exceeded - ICMPTypeParameterProblem ICMPType = 12 // Parameter Problem - ICMPTypeTimestamp ICMPType = 13 // Timestamp - ICMPTypeTimestampReply ICMPType = 14 // Timestamp Reply - ICMPTypePhoturis ICMPType = 40 // Photuris - ICMPTypeExtendedEchoRequest ICMPType = 42 // Extended Echo Request - ICMPTypeExtendedEchoReply ICMPType = 43 // Extended Echo Reply -) - -// Internet Control Message Protocol (ICMP) Parameters, Updated: 2018-02-26 -var icmpTypes = map[ICMPType]string{ - 0: "echo reply", - 3: "destination unreachable", - 5: "redirect", - 8: "echo", - 9: "router advertisement", - 10: "router solicitation", - 11: "time exceeded", - 12: "parameter problem", - 13: "timestamp", - 14: "timestamp reply", - 40: "photuris", - 42: "extended echo request", - 43: "extended echo reply", -} diff --git a/vendor/golang.org/x/net/ipv4/icmp.go b/vendor/golang.org/x/net/ipv4/icmp.go deleted file mode 100644 index 9902bb3d2a..0000000000 --- a/vendor/golang.org/x/net/ipv4/icmp.go +++ /dev/null @@ -1,57 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import "golang.org/x/net/internal/iana" - -// An ICMPType represents a type of ICMP message. -type ICMPType int - -func (typ ICMPType) String() string { - s, ok := icmpTypes[typ] - if !ok { - return "" - } - return s -} - -// Protocol returns the ICMPv4 protocol number. -func (typ ICMPType) Protocol() int { - return iana.ProtocolICMP -} - -// An ICMPFilter represents an ICMP message filter for incoming -// packets. The filter belongs to a packet delivery path on a host and -// it cannot interact with forwarding packets or tunnel-outer packets. -// -// Note: RFC 8200 defines a reasonable role model and it works not -// only for IPv6 but IPv4. A node means a device that implements IP. -// A router means a node that forwards IP packets not explicitly -// addressed to itself, and a host means a node that is not a router. -type ICMPFilter struct { - icmpFilter -} - -// Accept accepts incoming ICMP packets including the type field value -// typ. -func (f *ICMPFilter) Accept(typ ICMPType) { - f.accept(typ) -} - -// Block blocks incoming ICMP packets including the type field value -// typ. -func (f *ICMPFilter) Block(typ ICMPType) { - f.block(typ) -} - -// SetAll sets the filter action to the filter. -func (f *ICMPFilter) SetAll(block bool) { - f.setAll(block) -} - -// WillBlock reports whether the ICMP type will be blocked. -func (f *ICMPFilter) WillBlock(typ ICMPType) bool { - return f.willBlock(typ) -} diff --git a/vendor/golang.org/x/net/ipv4/icmp_linux.go b/vendor/golang.org/x/net/ipv4/icmp_linux.go deleted file mode 100644 index 6e1c5c80ad..0000000000 --- a/vendor/golang.org/x/net/ipv4/icmp_linux.go +++ /dev/null @@ -1,25 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -func (f *icmpFilter) accept(typ ICMPType) { - f.Data &^= 1 << (uint32(typ) & 31) -} - -func (f *icmpFilter) block(typ ICMPType) { - f.Data |= 1 << (uint32(typ) & 31) -} - -func (f *icmpFilter) setAll(block bool) { - if block { - f.Data = 1<<32 - 1 - } else { - f.Data = 0 - } -} - -func (f *icmpFilter) willBlock(typ ICMPType) bool { - return f.Data&(1<<(uint32(typ)&31)) != 0 -} diff --git a/vendor/golang.org/x/net/ipv4/icmp_stub.go b/vendor/golang.org/x/net/ipv4/icmp_stub.go deleted file mode 100644 index c2c4ce7ff5..0000000000 --- a/vendor/golang.org/x/net/ipv4/icmp_stub.go +++ /dev/null @@ -1,25 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !linux - -package ipv4 - -const sizeofICMPFilter = 0x0 - -type icmpFilter struct { -} - -func (f *icmpFilter) accept(typ ICMPType) { -} - -func (f *icmpFilter) block(typ ICMPType) { -} - -func (f *icmpFilter) setAll(block bool) { -} - -func (f *icmpFilter) willBlock(typ ICMPType) bool { - return false -} diff --git a/vendor/golang.org/x/net/ipv4/packet.go b/vendor/golang.org/x/net/ipv4/packet.go deleted file mode 100644 index 7d784e06dd..0000000000 --- a/vendor/golang.org/x/net/ipv4/packet.go +++ /dev/null @@ -1,117 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "net" - - "golang.org/x/net/internal/socket" -) - -// BUG(mikio): On Windows, the ReadFrom and WriteTo methods of RawConn -// are not implemented. - -// A packetHandler represents the IPv4 datagram handler. -type packetHandler struct { - *net.IPConn - *socket.Conn - rawOpt -} - -func (c *packetHandler) ok() bool { return c != nil && c.IPConn != nil && c.Conn != nil } - -// ReadFrom reads an IPv4 datagram from the endpoint c, copying the -// datagram into b. It returns the received datagram as the IPv4 -// header h, the payload p and the control message cm. -func (c *packetHandler) ReadFrom(b []byte) (h *Header, p []byte, cm *ControlMessage, err error) { - if !c.ok() { - return nil, nil, nil, errInvalidConn - } - c.rawOpt.RLock() - m := socket.Message{ - Buffers: [][]byte{b}, - OOB: NewControlMessage(c.rawOpt.cflags), - } - c.rawOpt.RUnlock() - if err := c.RecvMsg(&m, 0); err != nil { - return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err} - } - var hs []byte - if hs, p, err = slicePacket(b[:m.N]); err != nil { - return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err} - } - if h, err = ParseHeader(hs); err != nil { - return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err} - } - if m.NN > 0 { - if compatFreeBSD32 { - adjustFreeBSD32(&m) - } - cm = new(ControlMessage) - if err := cm.Parse(m.OOB[:m.NN]); err != nil { - return nil, nil, nil, &net.OpError{Op: "read", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Err: err} - } - } - if src, ok := m.Addr.(*net.IPAddr); ok && cm != nil { - cm.Src = src.IP - } - return -} - -func slicePacket(b []byte) (h, p []byte, err error) { - if len(b) < HeaderLen { - return nil, nil, errHeaderTooShort - } - hdrlen := int(b[0]&0x0f) << 2 - return b[:hdrlen], b[hdrlen:], nil -} - -// WriteTo writes an IPv4 datagram through the endpoint c, copying the -// datagram from the IPv4 header h and the payload p. The control -// message cm allows the datagram path and the outgoing interface to be -// specified. Currently only Darwin and Linux support this. The cm -// may be nil if control of the outgoing datagram is not required. -// -// The IPv4 header h must contain appropriate fields that include: -// -// Version = -// Len = -// TOS = -// TotalLen = -// ID = platform sets an appropriate value if ID is zero -// FragOff = -// TTL = -// Protocol = -// Checksum = platform sets an appropriate value if Checksum is zero -// Src = platform sets an appropriate value if Src is nil -// Dst = -// Options = optional -func (c *packetHandler) WriteTo(h *Header, p []byte, cm *ControlMessage) error { - if !c.ok() { - return errInvalidConn - } - m := socket.Message{ - OOB: cm.Marshal(), - } - wh, err := h.Marshal() - if err != nil { - return err - } - m.Buffers = [][]byte{wh, p} - dst := new(net.IPAddr) - if cm != nil { - if ip := cm.Dst.To4(); ip != nil { - dst.IP = ip - } - } - if dst.IP == nil { - dst.IP = h.Dst - } - m.Addr = dst - if err := c.SendMsg(&m, 0); err != nil { - return &net.OpError{Op: "write", Net: c.IPConn.LocalAddr().Network(), Source: c.IPConn.LocalAddr(), Addr: opAddr(dst), Err: err} - } - return nil -} diff --git a/vendor/golang.org/x/net/ipv4/payload.go b/vendor/golang.org/x/net/ipv4/payload.go deleted file mode 100644 index f95f811acd..0000000000 --- a/vendor/golang.org/x/net/ipv4/payload.go +++ /dev/null @@ -1,23 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "net" - - "golang.org/x/net/internal/socket" -) - -// BUG(mikio): On Windows, the ControlMessage for ReadFrom and WriteTo -// methods of PacketConn is not implemented. - -// A payloadHandler represents the IPv4 datagram payload handler. -type payloadHandler struct { - net.PacketConn - *socket.Conn - rawOpt -} - -func (c *payloadHandler) ok() bool { return c != nil && c.PacketConn != nil && c.Conn != nil } diff --git a/vendor/golang.org/x/net/ipv4/payload_cmsg.go b/vendor/golang.org/x/net/ipv4/payload_cmsg.go deleted file mode 100644 index 91c685e8fc..0000000000 --- a/vendor/golang.org/x/net/ipv4/payload_cmsg.go +++ /dev/null @@ -1,84 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos - -package ipv4 - -import ( - "net" - - "golang.org/x/net/internal/socket" -) - -// ReadFrom reads a payload of the received IPv4 datagram, from the -// endpoint c, copying the payload into b. It returns the number of -// bytes copied into b, the control message cm and the source address -// src of the received datagram. -func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) { - if !c.ok() { - return 0, nil, nil, errInvalidConn - } - c.rawOpt.RLock() - m := socket.Message{ - OOB: NewControlMessage(c.rawOpt.cflags), - } - c.rawOpt.RUnlock() - switch c.PacketConn.(type) { - case *net.UDPConn: - m.Buffers = [][]byte{b} - if err := c.RecvMsg(&m, 0); err != nil { - return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err} - } - case *net.IPConn: - h := make([]byte, HeaderLen) - m.Buffers = [][]byte{h, b} - if err := c.RecvMsg(&m, 0); err != nil { - return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err} - } - hdrlen := int(h[0]&0x0f) << 2 - if hdrlen > len(h) { - d := hdrlen - len(h) - copy(b, b[d:]) - m.N -= d - } else { - m.N -= hdrlen - } - default: - return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: errInvalidConnType} - } - if m.NN > 0 { - if compatFreeBSD32 { - adjustFreeBSD32(&m) - } - cm = new(ControlMessage) - if err := cm.Parse(m.OOB[:m.NN]); err != nil { - return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err} - } - cm.Src = netAddrToIP4(m.Addr) - } - return m.N, cm, m.Addr, nil -} - -// WriteTo writes a payload of the IPv4 datagram, to the destination -// address dst through the endpoint c, copying the payload from b. It -// returns the number of bytes written. The control message cm allows -// the datagram path and the outgoing interface to be specified. -// Currently only Darwin and Linux support this. The cm may be nil if -// control of the outgoing datagram is not required. -func (c *payloadHandler) WriteTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) { - if !c.ok() { - return 0, errInvalidConn - } - m := socket.Message{ - Buffers: [][]byte{b}, - OOB: cm.Marshal(), - Addr: dst, - } - err = c.SendMsg(&m, 0) - if err != nil { - err = &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Addr: opAddr(dst), Err: err} - } - return m.N, err -} diff --git a/vendor/golang.org/x/net/ipv4/payload_nocmsg.go b/vendor/golang.org/x/net/ipv4/payload_nocmsg.go deleted file mode 100644 index 2afd4b50ef..0000000000 --- a/vendor/golang.org/x/net/ipv4/payload_nocmsg.go +++ /dev/null @@ -1,39 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !zos - -package ipv4 - -import "net" - -// ReadFrom reads a payload of the received IPv4 datagram, from the -// endpoint c, copying the payload into b. It returns the number of -// bytes copied into b, the control message cm and the source address -// src of the received datagram. -func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) { - if !c.ok() { - return 0, nil, nil, errInvalidConn - } - if n, src, err = c.PacketConn.ReadFrom(b); err != nil { - return 0, nil, nil, err - } - return -} - -// WriteTo writes a payload of the IPv4 datagram, to the destination -// address dst through the endpoint c, copying the payload from b. It -// returns the number of bytes written. The control message cm allows -// the datagram path and the outgoing interface to be specified. -// Currently only Darwin and Linux support this. The cm may be nil if -// control of the outgoing datagram is not required. -func (c *payloadHandler) WriteTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) { - if !c.ok() { - return 0, errInvalidConn - } - if dst == nil { - return 0, errMissingAddress - } - return c.PacketConn.WriteTo(b, dst) -} diff --git a/vendor/golang.org/x/net/ipv4/sockopt.go b/vendor/golang.org/x/net/ipv4/sockopt.go deleted file mode 100644 index 22e90c0392..0000000000 --- a/vendor/golang.org/x/net/ipv4/sockopt.go +++ /dev/null @@ -1,44 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import "golang.org/x/net/internal/socket" - -// Sticky socket options -const ( - ssoTOS = iota // header field for unicast packet - ssoTTL // header field for unicast packet - ssoMulticastTTL // header field for multicast packet - ssoMulticastInterface // outbound interface for multicast packet - ssoMulticastLoopback // loopback for multicast packet - ssoReceiveTTL // header field on received packet - ssoReceiveDst // header field on received packet - ssoReceiveInterface // inbound interface on received packet - ssoPacketInfo // incbound or outbound packet path - ssoHeaderPrepend // ipv4 header prepend - ssoStripHeader // strip ipv4 header - ssoICMPFilter // icmp filter - ssoJoinGroup // any-source multicast - ssoLeaveGroup // any-source multicast - ssoJoinSourceGroup // source-specific multicast - ssoLeaveSourceGroup // source-specific multicast - ssoBlockSourceGroup // any-source or source-specific multicast - ssoUnblockSourceGroup // any-source or source-specific multicast - ssoAttachFilter // attach BPF for filtering inbound traffic -) - -// Sticky socket option value types -const ( - ssoTypeIPMreq = iota + 1 - ssoTypeIPMreqn - ssoTypeGroupReq - ssoTypeGroupSourceReq -) - -// A sockOpt represents a binding for sticky socket option. -type sockOpt struct { - socket.Option - typ int // hint for option value type; optional -} diff --git a/vendor/golang.org/x/net/ipv4/sockopt_posix.go b/vendor/golang.org/x/net/ipv4/sockopt_posix.go deleted file mode 100644 index 82e2c37838..0000000000 --- a/vendor/golang.org/x/net/ipv4/sockopt_posix.go +++ /dev/null @@ -1,71 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || windows || zos - -package ipv4 - -import ( - "net" - "unsafe" - - "golang.org/x/net/bpf" - "golang.org/x/net/internal/socket" -) - -func (so *sockOpt) getMulticastInterface(c *socket.Conn) (*net.Interface, error) { - switch so.typ { - case ssoTypeIPMreqn: - return so.getIPMreqn(c) - default: - return so.getMulticastIf(c) - } -} - -func (so *sockOpt) setMulticastInterface(c *socket.Conn, ifi *net.Interface) error { - switch so.typ { - case ssoTypeIPMreqn: - return so.setIPMreqn(c, ifi, nil) - default: - return so.setMulticastIf(c, ifi) - } -} - -func (so *sockOpt) getICMPFilter(c *socket.Conn) (*ICMPFilter, error) { - b := make([]byte, so.Len) - n, err := so.Get(c, b) - if err != nil { - return nil, err - } - if n != sizeofICMPFilter { - return nil, errNotImplemented - } - return (*ICMPFilter)(unsafe.Pointer(&b[0])), nil -} - -func (so *sockOpt) setICMPFilter(c *socket.Conn, f *ICMPFilter) error { - b := (*[sizeofICMPFilter]byte)(unsafe.Pointer(f))[:sizeofICMPFilter] - return so.Set(c, b) -} - -func (so *sockOpt) setGroup(c *socket.Conn, ifi *net.Interface, grp net.IP) error { - switch so.typ { - case ssoTypeIPMreq: - return so.setIPMreq(c, ifi, grp) - case ssoTypeIPMreqn: - return so.setIPMreqn(c, ifi, grp) - case ssoTypeGroupReq: - return so.setGroupReq(c, ifi, grp) - default: - return errNotImplemented - } -} - -func (so *sockOpt) setSourceGroup(c *socket.Conn, ifi *net.Interface, grp, src net.IP) error { - return so.setGroupSourceReq(c, ifi, grp, src) -} - -func (so *sockOpt) setBPF(c *socket.Conn, f []bpf.RawInstruction) error { - return so.setAttachFilter(c, f) -} diff --git a/vendor/golang.org/x/net/ipv4/sockopt_stub.go b/vendor/golang.org/x/net/ipv4/sockopt_stub.go deleted file mode 100644 index 840108bf76..0000000000 --- a/vendor/golang.org/x/net/ipv4/sockopt_stub.go +++ /dev/null @@ -1,42 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !windows && !zos - -package ipv4 - -import ( - "net" - - "golang.org/x/net/bpf" - "golang.org/x/net/internal/socket" -) - -func (so *sockOpt) getMulticastInterface(c *socket.Conn) (*net.Interface, error) { - return nil, errNotImplemented -} - -func (so *sockOpt) setMulticastInterface(c *socket.Conn, ifi *net.Interface) error { - return errNotImplemented -} - -func (so *sockOpt) getICMPFilter(c *socket.Conn) (*ICMPFilter, error) { - return nil, errNotImplemented -} - -func (so *sockOpt) setICMPFilter(c *socket.Conn, f *ICMPFilter) error { - return errNotImplemented -} - -func (so *sockOpt) setGroup(c *socket.Conn, ifi *net.Interface, grp net.IP) error { - return errNotImplemented -} - -func (so *sockOpt) setSourceGroup(c *socket.Conn, ifi *net.Interface, grp, src net.IP) error { - return errNotImplemented -} - -func (so *sockOpt) setBPF(c *socket.Conn, f []bpf.RawInstruction) error { - return errNotImplemented -} diff --git a/vendor/golang.org/x/net/ipv4/sys_aix.go b/vendor/golang.org/x/net/ipv4/sys_aix.go deleted file mode 100644 index 9244a68a38..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_aix.go +++ /dev/null @@ -1,43 +0,0 @@ -// Copyright 2019 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Added for go1.11 compatibility -//go:build aix - -package ipv4 - -import ( - "net" - "syscall" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -// IP_RECVIF is defined on AIX but doesn't work. IP_RECVINTERFACE must be used instead. -const sockoptReceiveInterface = unix.IP_RECVINTERFACE - -var ( - ctlOpts = [ctlMax]ctlOpt{ - ctlTTL: {unix.IP_RECVTTL, 1, marshalTTL, parseTTL}, - ctlDst: {unix.IP_RECVDSTADDR, net.IPv4len, marshalDst, parseDst}, - ctlInterface: {unix.IP_RECVINTERFACE, syscall.SizeofSockaddrDatalink, marshalInterface, parseInterface}, - } - - sockOpts = map[int]*sockOpt{ - ssoTOS: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_TOS, Len: 4}}, - ssoTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_TTL, Len: 4}}, - ssoMulticastTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_TTL, Len: 1}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_IF, Len: 4}}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_LOOP, Len: 1}}, - ssoReceiveTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVTTL, Len: 4}}, - ssoReceiveDst: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVDSTADDR, Len: 4}}, - ssoReceiveInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVINTERFACE, Len: 4}}, - ssoHeaderPrepend: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_HDRINCL, Len: 4}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_ADD_MEMBERSHIP, Len: sizeofIPMreq}, typ: ssoTypeIPMreq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_DROP_MEMBERSHIP, Len: sizeofIPMreq}, typ: ssoTypeIPMreq}, - } -) diff --git a/vendor/golang.org/x/net/ipv4/sys_asmreq.go b/vendor/golang.org/x/net/ipv4/sys_asmreq.go deleted file mode 100644 index 645f254c6d..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_asmreq.go +++ /dev/null @@ -1,122 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || netbsd || openbsd || solaris || windows - -package ipv4 - -import ( - "errors" - "net" - "unsafe" - - "golang.org/x/net/internal/socket" -) - -var errNoSuchInterface = errors.New("no such interface") - -func (so *sockOpt) setIPMreq(c *socket.Conn, ifi *net.Interface, grp net.IP) error { - mreq := ipMreq{Multiaddr: [4]byte{grp[0], grp[1], grp[2], grp[3]}} - if err := setIPMreqInterface(&mreq, ifi); err != nil { - return err - } - b := (*[sizeofIPMreq]byte)(unsafe.Pointer(&mreq))[:sizeofIPMreq] - return so.Set(c, b) -} - -func (so *sockOpt) getMulticastIf(c *socket.Conn) (*net.Interface, error) { - var b [4]byte - if _, err := so.Get(c, b[:]); err != nil { - return nil, err - } - ifi, err := netIP4ToInterface(net.IPv4(b[0], b[1], b[2], b[3])) - if err != nil { - return nil, err - } - return ifi, nil -} - -func (so *sockOpt) setMulticastIf(c *socket.Conn, ifi *net.Interface) error { - ip, err := netInterfaceToIP4(ifi) - if err != nil { - return err - } - var b [4]byte - copy(b[:], ip) - return so.Set(c, b[:]) -} - -func setIPMreqInterface(mreq *ipMreq, ifi *net.Interface) error { - if ifi == nil { - return nil - } - ifat, err := ifi.Addrs() - if err != nil { - return err - } - for _, ifa := range ifat { - switch ifa := ifa.(type) { - case *net.IPAddr: - if ip := ifa.IP.To4(); ip != nil { - copy(mreq.Interface[:], ip) - return nil - } - case *net.IPNet: - if ip := ifa.IP.To4(); ip != nil { - copy(mreq.Interface[:], ip) - return nil - } - } - } - return errNoSuchInterface -} - -func netIP4ToInterface(ip net.IP) (*net.Interface, error) { - ift, err := net.Interfaces() - if err != nil { - return nil, err - } - for _, ifi := range ift { - ifat, err := ifi.Addrs() - if err != nil { - return nil, err - } - for _, ifa := range ifat { - switch ifa := ifa.(type) { - case *net.IPAddr: - if ip.Equal(ifa.IP) { - return &ifi, nil - } - case *net.IPNet: - if ip.Equal(ifa.IP) { - return &ifi, nil - } - } - } - } - return nil, errNoSuchInterface -} - -func netInterfaceToIP4(ifi *net.Interface) (net.IP, error) { - if ifi == nil { - return net.IPv4zero.To4(), nil - } - ifat, err := ifi.Addrs() - if err != nil { - return nil, err - } - for _, ifa := range ifat { - switch ifa := ifa.(type) { - case *net.IPAddr: - if ip := ifa.IP.To4(); ip != nil { - return ip, nil - } - case *net.IPNet: - if ip := ifa.IP.To4(); ip != nil { - return ip, nil - } - } - } - return nil, errNoSuchInterface -} diff --git a/vendor/golang.org/x/net/ipv4/sys_asmreq_stub.go b/vendor/golang.org/x/net/ipv4/sys_asmreq_stub.go deleted file mode 100644 index 48cfb6db2f..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_asmreq_stub.go +++ /dev/null @@ -1,25 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !netbsd && !openbsd && !solaris && !windows - -package ipv4 - -import ( - "net" - - "golang.org/x/net/internal/socket" -) - -func (so *sockOpt) setIPMreq(c *socket.Conn, ifi *net.Interface, grp net.IP) error { - return errNotImplemented -} - -func (so *sockOpt) getMulticastIf(c *socket.Conn) (*net.Interface, error) { - return nil, errNotImplemented -} - -func (so *sockOpt) setMulticastIf(c *socket.Conn, ifi *net.Interface) error { - return errNotImplemented -} diff --git a/vendor/golang.org/x/net/ipv4/sys_asmreqn.go b/vendor/golang.org/x/net/ipv4/sys_asmreqn.go deleted file mode 100644 index 0b27b632f1..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_asmreqn.go +++ /dev/null @@ -1,44 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build darwin || freebsd || linux - -package ipv4 - -import ( - "net" - "unsafe" - - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -func (so *sockOpt) getIPMreqn(c *socket.Conn) (*net.Interface, error) { - b := make([]byte, so.Len) - if _, err := so.Get(c, b); err != nil { - return nil, err - } - mreqn := (*unix.IPMreqn)(unsafe.Pointer(&b[0])) - if mreqn.Ifindex == 0 { - return nil, nil - } - ifi, err := net.InterfaceByIndex(int(mreqn.Ifindex)) - if err != nil { - return nil, err - } - return ifi, nil -} - -func (so *sockOpt) setIPMreqn(c *socket.Conn, ifi *net.Interface, grp net.IP) error { - var mreqn unix.IPMreqn - if ifi != nil { - mreqn.Ifindex = int32(ifi.Index) - } - if grp != nil { - mreqn.Multiaddr = [4]byte{grp[0], grp[1], grp[2], grp[3]} - } - b := (*[unix.SizeofIPMreqn]byte)(unsafe.Pointer(&mreqn))[:unix.SizeofIPMreqn] - return so.Set(c, b) -} diff --git a/vendor/golang.org/x/net/ipv4/sys_asmreqn_stub.go b/vendor/golang.org/x/net/ipv4/sys_asmreqn_stub.go deleted file mode 100644 index 303a5e2e68..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_asmreqn_stub.go +++ /dev/null @@ -1,21 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !darwin && !freebsd && !linux - -package ipv4 - -import ( - "net" - - "golang.org/x/net/internal/socket" -) - -func (so *sockOpt) getIPMreqn(c *socket.Conn) (*net.Interface, error) { - return nil, errNotImplemented -} - -func (so *sockOpt) setIPMreqn(c *socket.Conn, ifi *net.Interface, grp net.IP) error { - return errNotImplemented -} diff --git a/vendor/golang.org/x/net/ipv4/sys_bpf.go b/vendor/golang.org/x/net/ipv4/sys_bpf.go deleted file mode 100644 index 1b4780df41..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_bpf.go +++ /dev/null @@ -1,24 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build linux - -package ipv4 - -import ( - "unsafe" - - "golang.org/x/net/bpf" - "golang.org/x/net/internal/socket" - "golang.org/x/sys/unix" -) - -func (so *sockOpt) setAttachFilter(c *socket.Conn, f []bpf.RawInstruction) error { - prog := unix.SockFprog{ - Len: uint16(len(f)), - Filter: (*unix.SockFilter)(unsafe.Pointer(&f[0])), - } - b := (*[unix.SizeofSockFprog]byte)(unsafe.Pointer(&prog))[:unix.SizeofSockFprog] - return so.Set(c, b) -} diff --git a/vendor/golang.org/x/net/ipv4/sys_bpf_stub.go b/vendor/golang.org/x/net/ipv4/sys_bpf_stub.go deleted file mode 100644 index b1f779b493..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_bpf_stub.go +++ /dev/null @@ -1,16 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !linux - -package ipv4 - -import ( - "golang.org/x/net/bpf" - "golang.org/x/net/internal/socket" -) - -func (so *sockOpt) setAttachFilter(c *socket.Conn, f []bpf.RawInstruction) error { - return errNotImplemented -} diff --git a/vendor/golang.org/x/net/ipv4/sys_bsd.go b/vendor/golang.org/x/net/ipv4/sys_bsd.go deleted file mode 100644 index b7b032d260..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_bsd.go +++ /dev/null @@ -1,41 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build netbsd || openbsd - -package ipv4 - -import ( - "net" - "syscall" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -const sockoptReceiveInterface = unix.IP_RECVIF - -var ( - ctlOpts = [ctlMax]ctlOpt{ - ctlTTL: {unix.IP_RECVTTL, 1, marshalTTL, parseTTL}, - ctlDst: {unix.IP_RECVDSTADDR, net.IPv4len, marshalDst, parseDst}, - ctlInterface: {unix.IP_RECVIF, syscall.SizeofSockaddrDatalink, marshalInterface, parseInterface}, - } - - sockOpts = map[int]*sockOpt{ - ssoTOS: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_TOS, Len: 4}}, - ssoTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_TTL, Len: 4}}, - ssoMulticastTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_TTL, Len: 1}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_IF, Len: 4}}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_LOOP, Len: 1}}, - ssoReceiveTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVTTL, Len: 4}}, - ssoReceiveDst: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVDSTADDR, Len: 4}}, - ssoReceiveInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVIF, Len: 4}}, - ssoHeaderPrepend: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_HDRINCL, Len: 4}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_ADD_MEMBERSHIP, Len: sizeofIPMreq}, typ: ssoTypeIPMreq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_DROP_MEMBERSHIP, Len: sizeofIPMreq}, typ: ssoTypeIPMreq}, - } -) diff --git a/vendor/golang.org/x/net/ipv4/sys_darwin.go b/vendor/golang.org/x/net/ipv4/sys_darwin.go deleted file mode 100644 index cac6f3cace..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_darwin.go +++ /dev/null @@ -1,69 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "net" - "syscall" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -const sockoptReceiveInterface = unix.IP_RECVIF - -var ( - ctlOpts = [ctlMax]ctlOpt{ - ctlTTL: {unix.IP_RECVTTL, 1, marshalTTL, parseTTL}, - ctlDst: {unix.IP_RECVDSTADDR, net.IPv4len, marshalDst, parseDst}, - ctlInterface: {unix.IP_RECVIF, syscall.SizeofSockaddrDatalink, marshalInterface, parseInterface}, - ctlPacketInfo: {unix.IP_PKTINFO, sizeofInetPktinfo, marshalPacketInfo, parsePacketInfo}, - } - - sockOpts = map[int]*sockOpt{ - ssoTOS: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_TOS, Len: 4}}, - ssoTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_TTL, Len: 4}}, - ssoMulticastTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_TTL, Len: 1}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_IF, Len: unix.SizeofIPMreqn}, typ: ssoTypeIPMreqn}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_LOOP, Len: 4}}, - ssoReceiveTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVTTL, Len: 4}}, - ssoReceiveDst: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVDSTADDR, Len: 4}}, - ssoReceiveInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVIF, Len: 4}}, - ssoHeaderPrepend: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_HDRINCL, Len: 4}}, - ssoStripHeader: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_STRIPHDR, Len: 4}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoJoinSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoLeaveSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoBlockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoPacketInfo: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVPKTINFO, Len: 4}}, - } -) - -func (pi *inetPktinfo) setIfindex(i int) { - pi.Ifindex = uint32(i) -} - -func (gr *groupReq) setGroup(grp net.IP) { - sa := (*sockaddrInet)(unsafe.Pointer(uintptr(unsafe.Pointer(gr)) + 4)) - sa.Len = sizeofSockaddrInet - sa.Family = syscall.AF_INET - copy(sa.Addr[:], grp) -} - -func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) { - sa := (*sockaddrInet)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 4)) - sa.Len = sizeofSockaddrInet - sa.Family = syscall.AF_INET - copy(sa.Addr[:], grp) - sa = (*sockaddrInet)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 132)) - sa.Len = sizeofSockaddrInet - sa.Family = syscall.AF_INET - copy(sa.Addr[:], src) -} diff --git a/vendor/golang.org/x/net/ipv4/sys_dragonfly.go b/vendor/golang.org/x/net/ipv4/sys_dragonfly.go deleted file mode 100644 index 0620d0e1ea..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_dragonfly.go +++ /dev/null @@ -1,39 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "net" - "syscall" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -const sockoptReceiveInterface = unix.IP_RECVIF - -var ( - ctlOpts = [ctlMax]ctlOpt{ - ctlTTL: {unix.IP_RECVTTL, 1, marshalTTL, parseTTL}, - ctlDst: {unix.IP_RECVDSTADDR, net.IPv4len, marshalDst, parseDst}, - ctlInterface: {unix.IP_RECVIF, syscall.SizeofSockaddrDatalink, marshalInterface, parseInterface}, - } - - sockOpts = map[int]*sockOpt{ - ssoTOS: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_TOS, Len: 4}}, - ssoTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_TTL, Len: 4}}, - ssoMulticastTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_TTL, Len: 1}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_IF, Len: 4}}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_LOOP, Len: 4}}, - ssoReceiveTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVTTL, Len: 4}}, - ssoReceiveDst: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVDSTADDR, Len: 4}}, - ssoReceiveInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVIF, Len: 4}}, - ssoHeaderPrepend: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_HDRINCL, Len: 4}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_ADD_MEMBERSHIP, Len: sizeofIPMreq}, typ: ssoTypeIPMreq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_DROP_MEMBERSHIP, Len: sizeofIPMreq}, typ: ssoTypeIPMreq}, - } -) diff --git a/vendor/golang.org/x/net/ipv4/sys_freebsd.go b/vendor/golang.org/x/net/ipv4/sys_freebsd.go deleted file mode 100644 index 8961228759..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_freebsd.go +++ /dev/null @@ -1,80 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "net" - "runtime" - "strings" - "syscall" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -const sockoptReceiveInterface = unix.IP_RECVIF - -var ( - ctlOpts = [ctlMax]ctlOpt{ - ctlTTL: {unix.IP_RECVTTL, 1, marshalTTL, parseTTL}, - ctlDst: {unix.IP_RECVDSTADDR, net.IPv4len, marshalDst, parseDst}, - ctlInterface: {unix.IP_RECVIF, syscall.SizeofSockaddrDatalink, marshalInterface, parseInterface}, - } - - sockOpts = map[int]*sockOpt{ - ssoTOS: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_TOS, Len: 4}}, - ssoTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_TTL, Len: 4}}, - ssoMulticastTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_TTL, Len: 1}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_IF, Len: 4}}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_LOOP, Len: 4}}, - ssoReceiveTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVTTL, Len: 4}}, - ssoReceiveDst: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVDSTADDR, Len: 4}}, - ssoReceiveInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVIF, Len: 4}}, - ssoHeaderPrepend: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_HDRINCL, Len: 4}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoJoinSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoLeaveSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoBlockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - } -) - -func init() { - freebsdVersion, _ = syscall.SysctlUint32("kern.osreldate") - if freebsdVersion >= 1000000 { - sockOpts[ssoMulticastInterface] = &sockOpt{Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_IF, Len: unix.SizeofIPMreqn}, typ: ssoTypeIPMreqn} - } - if runtime.GOOS == "freebsd" && runtime.GOARCH == "386" { - archs, _ := syscall.Sysctl("kern.supported_archs") - for _, s := range strings.Fields(archs) { - if s == "amd64" { - compatFreeBSD32 = true - break - } - } - } -} - -func (gr *groupReq) setGroup(grp net.IP) { - sa := (*sockaddrInet)(unsafe.Pointer(&gr.Group)) - sa.Len = sizeofSockaddrInet - sa.Family = syscall.AF_INET - copy(sa.Addr[:], grp) -} - -func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) { - sa := (*sockaddrInet)(unsafe.Pointer(&gsr.Group)) - sa.Len = sizeofSockaddrInet - sa.Family = syscall.AF_INET - copy(sa.Addr[:], grp) - sa = (*sockaddrInet)(unsafe.Pointer(&gsr.Source)) - sa.Len = sizeofSockaddrInet - sa.Family = syscall.AF_INET - copy(sa.Addr[:], src) -} diff --git a/vendor/golang.org/x/net/ipv4/sys_linux.go b/vendor/golang.org/x/net/ipv4/sys_linux.go deleted file mode 100644 index 4588a5f3e2..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_linux.go +++ /dev/null @@ -1,61 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "net" - "syscall" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -var ( - ctlOpts = [ctlMax]ctlOpt{ - ctlTTL: {unix.IP_TTL, 1, marshalTTL, parseTTL}, - ctlPacketInfo: {unix.IP_PKTINFO, sizeofInetPktinfo, marshalPacketInfo, parsePacketInfo}, - } - - sockOpts = map[int]*sockOpt{ - ssoTOS: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_TOS, Len: 4}}, - ssoTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_TTL, Len: 4}}, - ssoMulticastTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_TTL, Len: 4}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_IF, Len: unix.SizeofIPMreqn}, typ: ssoTypeIPMreqn}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_LOOP, Len: 4}}, - ssoReceiveTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVTTL, Len: 4}}, - ssoPacketInfo: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_PKTINFO, Len: 4}}, - ssoHeaderPrepend: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_HDRINCL, Len: 4}}, - ssoICMPFilter: {Option: socket.Option{Level: iana.ProtocolReserved, Name: unix.ICMP_FILTER, Len: sizeofICMPFilter}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoJoinSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoLeaveSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoBlockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoAttachFilter: {Option: socket.Option{Level: unix.SOL_SOCKET, Name: unix.SO_ATTACH_FILTER, Len: unix.SizeofSockFprog}}, - } -) - -func (pi *inetPktinfo) setIfindex(i int) { - pi.Ifindex = int32(i) -} - -func (gr *groupReq) setGroup(grp net.IP) { - sa := (*sockaddrInet)(unsafe.Pointer(&gr.Group)) - sa.Family = syscall.AF_INET - copy(sa.Addr[:], grp) -} - -func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) { - sa := (*sockaddrInet)(unsafe.Pointer(&gsr.Group)) - sa.Family = syscall.AF_INET - copy(sa.Addr[:], grp) - sa = (*sockaddrInet)(unsafe.Pointer(&gsr.Source)) - sa.Family = syscall.AF_INET - copy(sa.Addr[:], src) -} diff --git a/vendor/golang.org/x/net/ipv4/sys_solaris.go b/vendor/golang.org/x/net/ipv4/sys_solaris.go deleted file mode 100644 index 0bb9f3e364..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_solaris.go +++ /dev/null @@ -1,61 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "net" - "syscall" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -const sockoptReceiveInterface = unix.IP_RECVIF - -var ( - ctlOpts = [ctlMax]ctlOpt{ - ctlTTL: {unix.IP_RECVTTL, 4, marshalTTL, parseTTL}, - ctlPacketInfo: {unix.IP_PKTINFO, sizeofInetPktinfo, marshalPacketInfo, parsePacketInfo}, - } - - sockOpts = map[int]sockOpt{ - ssoTOS: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_TOS, Len: 4}}, - ssoTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_TTL, Len: 4}}, - ssoMulticastTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_TTL, Len: 1}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_IF, Len: 4}}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_LOOP, Len: 1}}, - ssoReceiveTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVTTL, Len: 4}}, - ssoPacketInfo: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVPKTINFO, Len: 4}}, - ssoHeaderPrepend: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_HDRINCL, Len: 4}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoJoinSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoLeaveSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoBlockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - } -) - -func (pi *inetPktinfo) setIfindex(i int) { - pi.Ifindex = uint32(i) -} - -func (gr *groupReq) setGroup(grp net.IP) { - sa := (*sockaddrInet)(unsafe.Pointer(uintptr(unsafe.Pointer(gr)) + 4)) - sa.Family = syscall.AF_INET - copy(sa.Addr[:], grp) -} - -func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) { - sa := (*sockaddrInet)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 4)) - sa.Family = syscall.AF_INET - copy(sa.Addr[:], grp) - sa = (*sockaddrInet)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 260)) - sa.Family = syscall.AF_INET - copy(sa.Addr[:], src) -} diff --git a/vendor/golang.org/x/net/ipv4/sys_ssmreq.go b/vendor/golang.org/x/net/ipv4/sys_ssmreq.go deleted file mode 100644 index a295e15ea0..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_ssmreq.go +++ /dev/null @@ -1,52 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build darwin || freebsd || linux || solaris - -package ipv4 - -import ( - "net" - "unsafe" - - "golang.org/x/net/internal/socket" -) - -func (so *sockOpt) setGroupReq(c *socket.Conn, ifi *net.Interface, grp net.IP) error { - var gr groupReq - if ifi != nil { - gr.Interface = uint32(ifi.Index) - } - gr.setGroup(grp) - var b []byte - if compatFreeBSD32 { - var d [sizeofGroupReq + 4]byte - s := (*[sizeofGroupReq]byte)(unsafe.Pointer(&gr)) - copy(d[:4], s[:4]) - copy(d[8:], s[4:]) - b = d[:] - } else { - b = (*[sizeofGroupReq]byte)(unsafe.Pointer(&gr))[:sizeofGroupReq] - } - return so.Set(c, b) -} - -func (so *sockOpt) setGroupSourceReq(c *socket.Conn, ifi *net.Interface, grp, src net.IP) error { - var gsr groupSourceReq - if ifi != nil { - gsr.Interface = uint32(ifi.Index) - } - gsr.setSourceGroup(grp, src) - var b []byte - if compatFreeBSD32 { - var d [sizeofGroupSourceReq + 4]byte - s := (*[sizeofGroupSourceReq]byte)(unsafe.Pointer(&gsr)) - copy(d[:4], s[:4]) - copy(d[8:], s[4:]) - b = d[:] - } else { - b = (*[sizeofGroupSourceReq]byte)(unsafe.Pointer(&gsr))[:sizeofGroupSourceReq] - } - return so.Set(c, b) -} diff --git a/vendor/golang.org/x/net/ipv4/sys_ssmreq_stub.go b/vendor/golang.org/x/net/ipv4/sys_ssmreq_stub.go deleted file mode 100644 index 74bd454e25..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_ssmreq_stub.go +++ /dev/null @@ -1,21 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !darwin && !freebsd && !linux && !solaris - -package ipv4 - -import ( - "net" - - "golang.org/x/net/internal/socket" -) - -func (so *sockOpt) setGroupReq(c *socket.Conn, ifi *net.Interface, grp net.IP) error { - return errNotImplemented -} - -func (so *sockOpt) setGroupSourceReq(c *socket.Conn, ifi *net.Interface, grp, src net.IP) error { - return errNotImplemented -} diff --git a/vendor/golang.org/x/net/ipv4/sys_stub.go b/vendor/golang.org/x/net/ipv4/sys_stub.go deleted file mode 100644 index 20af4074c2..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_stub.go +++ /dev/null @@ -1,13 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !windows && !zos - -package ipv4 - -var ( - ctlOpts = [ctlMax]ctlOpt{} - - sockOpts = map[int]*sockOpt{} -) diff --git a/vendor/golang.org/x/net/ipv4/sys_windows.go b/vendor/golang.org/x/net/ipv4/sys_windows.go deleted file mode 100644 index c5e950633c..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_windows.go +++ /dev/null @@ -1,44 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/windows" -) - -const ( - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc -) - -type ipMreq struct { - Multiaddr [4]byte - Interface [4]byte -} - -type ipMreqSource struct { - Multiaddr [4]byte - Sourceaddr [4]byte - Interface [4]byte -} - -// See http://msdn.microsoft.com/en-us/library/windows/desktop/ms738586(v=vs.85).aspx -var ( - ctlOpts = [ctlMax]ctlOpt{} - - sockOpts = map[int]*sockOpt{ - ssoTOS: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_TOS, Len: 4}}, - ssoTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_TTL, Len: 4}}, - ssoMulticastTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_MULTICAST_TTL, Len: 4}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_MULTICAST_IF, Len: 4}}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_MULTICAST_LOOP, Len: 4}}, - ssoHeaderPrepend: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_HDRINCL, Len: 4}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_ADD_MEMBERSHIP, Len: sizeofIPMreq}, typ: ssoTypeIPMreq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_DROP_MEMBERSHIP, Len: sizeofIPMreq}, typ: ssoTypeIPMreq}, - } -) diff --git a/vendor/golang.org/x/net/ipv4/sys_zos.go b/vendor/golang.org/x/net/ipv4/sys_zos.go deleted file mode 100644 index be20640987..0000000000 --- a/vendor/golang.org/x/net/ipv4/sys_zos.go +++ /dev/null @@ -1,57 +0,0 @@ -// Copyright 2020 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv4 - -import ( - "net" - "syscall" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -var ( - ctlOpts = [ctlMax]ctlOpt{ - ctlPacketInfo: {unix.IP_PKTINFO, sizeofInetPktinfo, marshalPacketInfo, parsePacketInfo}, - } - - sockOpts = map[int]*sockOpt{ - ssoMulticastTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_TTL, Len: 1}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_IF, Len: 4}}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_MULTICAST_LOOP, Len: 1}}, - ssoPacketInfo: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.IP_RECVPKTINFO, Len: 4}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoJoinSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoLeaveSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoBlockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: unix.MCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - } -) - -func (pi *inetPktinfo) setIfindex(i int) { - pi.Ifindex = uint32(i) -} - -func (gr *groupReq) setGroup(grp net.IP) { - sa := (*sockaddrInet4)(unsafe.Pointer(&gr.Group)) - sa.Family = syscall.AF_INET - sa.Len = sizeofSockaddrInet4 - copy(sa.Addr[:], grp) -} - -func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) { - sa := (*sockaddrInet4)(unsafe.Pointer(&gsr.Group)) - sa.Family = syscall.AF_INET - sa.Len = sizeofSockaddrInet4 - copy(sa.Addr[:], grp) - sa = (*sockaddrInet4)(unsafe.Pointer(&gsr.Source)) - sa.Family = syscall.AF_INET - sa.Len = sizeofSockaddrInet4 - copy(sa.Addr[:], src) -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_aix_ppc64.go b/vendor/golang.org/x/net/ipv4/zsys_aix_ppc64.go deleted file mode 100644 index dd454025c7..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_aix_ppc64.go +++ /dev/null @@ -1,16 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_aix.go - -// Added for go1.11 compatibility -//go:build aix - -package ipv4 - -const ( - sizeofIPMreq = 0x8 -) - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_darwin.go b/vendor/golang.org/x/net/ipv4/zsys_darwin.go deleted file mode 100644 index 6c1b705642..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_darwin.go +++ /dev/null @@ -1,59 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_darwin.go - -package ipv4 - -const ( - sizeofSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x84 - sizeofGroupSourceReq = 0x104 -) - -type sockaddrStorage struct { - Len uint8 - Family uint8 - X__ss_pad1 [6]int8 - X__ss_align int64 - X__ss_pad2 [112]int8 -} - -type sockaddrInet struct { - Len uint8 - Family uint8 - Port uint16 - Addr [4]byte /* in_addr */ - Zero [8]int8 -} - -type inetPktinfo struct { - Ifindex uint32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr [4]byte /* in_addr */ - Sourceaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [128]byte -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [128]byte - Pad_cgo_1 [128]byte -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_dragonfly.go b/vendor/golang.org/x/net/ipv4/zsys_dragonfly.go deleted file mode 100644 index 2155df130a..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_dragonfly.go +++ /dev/null @@ -1,13 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_dragonfly.go - -package ipv4 - -const ( - sizeofIPMreq = 0x8 -) - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_freebsd_386.go b/vendor/golang.org/x/net/ipv4/zsys_freebsd_386.go deleted file mode 100644 index ae40482a8f..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_freebsd_386.go +++ /dev/null @@ -1,52 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_freebsd.go - -package ipv4 - -const ( - sizeofSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x84 - sizeofGroupSourceReq = 0x104 -) - -type sockaddrStorage struct { - Len uint8 - Family uint8 - X__ss_pad1 [6]int8 - X__ss_align int64 - X__ss_pad2 [112]int8 -} - -type sockaddrInet struct { - Len uint8 - Family uint8 - Port uint16 - Addr [4]byte /* in_addr */ - Zero [8]int8 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr [4]byte /* in_addr */ - Sourceaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type groupReq struct { - Interface uint32 - Group sockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group sockaddrStorage - Source sockaddrStorage -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_freebsd_amd64.go b/vendor/golang.org/x/net/ipv4/zsys_freebsd_amd64.go deleted file mode 100644 index 901818671b..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_freebsd_amd64.go +++ /dev/null @@ -1,54 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_freebsd.go - -package ipv4 - -const ( - sizeofSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 -) - -type sockaddrStorage struct { - Len uint8 - Family uint8 - X__ss_pad1 [6]int8 - X__ss_align int64 - X__ss_pad2 [112]int8 -} - -type sockaddrInet struct { - Len uint8 - Family uint8 - Port uint16 - Addr [4]byte /* in_addr */ - Zero [8]int8 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr [4]byte /* in_addr */ - Sourceaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group sockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group sockaddrStorage - Source sockaddrStorage -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_freebsd_arm.go b/vendor/golang.org/x/net/ipv4/zsys_freebsd_arm.go deleted file mode 100644 index 901818671b..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_freebsd_arm.go +++ /dev/null @@ -1,54 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_freebsd.go - -package ipv4 - -const ( - sizeofSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 -) - -type sockaddrStorage struct { - Len uint8 - Family uint8 - X__ss_pad1 [6]int8 - X__ss_align int64 - X__ss_pad2 [112]int8 -} - -type sockaddrInet struct { - Len uint8 - Family uint8 - Port uint16 - Addr [4]byte /* in_addr */ - Zero [8]int8 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr [4]byte /* in_addr */ - Sourceaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group sockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group sockaddrStorage - Source sockaddrStorage -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_freebsd_arm64.go b/vendor/golang.org/x/net/ipv4/zsys_freebsd_arm64.go deleted file mode 100644 index 0feb9a7536..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_freebsd_arm64.go +++ /dev/null @@ -1,52 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_freebsd.go - -package ipv4 - -const ( - sizeofSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 -) - -type sockaddrStorage struct { - Len uint8 - Family uint8 - X__ss_pad1 [6]uint8 - X__ss_align int64 - X__ss_pad2 [112]uint8 -} - -type sockaddrInet struct { - Len uint8 - Family uint8 - Port uint16 - Addr [4]byte /* in_addr */ - Zero [8]uint8 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr [4]byte /* in_addr */ - Sourceaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type groupReq struct { - Interface uint32 - Group sockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group sockaddrStorage - Source sockaddrStorage -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_freebsd_riscv64.go b/vendor/golang.org/x/net/ipv4/zsys_freebsd_riscv64.go deleted file mode 100644 index 0feb9a7536..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_freebsd_riscv64.go +++ /dev/null @@ -1,52 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_freebsd.go - -package ipv4 - -const ( - sizeofSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 -) - -type sockaddrStorage struct { - Len uint8 - Family uint8 - X__ss_pad1 [6]uint8 - X__ss_align int64 - X__ss_pad2 [112]uint8 -} - -type sockaddrInet struct { - Len uint8 - Family uint8 - Port uint16 - Addr [4]byte /* in_addr */ - Zero [8]uint8 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr [4]byte /* in_addr */ - Sourceaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type groupReq struct { - Interface uint32 - Group sockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group sockaddrStorage - Source sockaddrStorage -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_386.go b/vendor/golang.org/x/net/ipv4/zsys_linux_386.go deleted file mode 100644 index d510357ca0..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_linux_386.go +++ /dev/null @@ -1,72 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv4 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - sizeofSockExtendedErr = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x84 - sizeofGroupSourceReq = 0x104 - - sizeofICMPFilter = 0x4 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet struct { - Family uint16 - Port uint16 - Addr [4]byte /* in_addr */ - X__pad [8]uint8 -} - -type inetPktinfo struct { - Ifindex int32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type sockExtendedErr struct { - Errno uint32 - Origin uint8 - Type uint8 - Code uint8 - Pad uint8 - Info uint32 - Data uint32 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr uint32 - Interface uint32 - Sourceaddr uint32 -} - -type groupReq struct { - Interface uint32 - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpFilter struct { - Data uint32 -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_amd64.go b/vendor/golang.org/x/net/ipv4/zsys_linux_amd64.go deleted file mode 100644 index eb10cc79bd..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_linux_amd64.go +++ /dev/null @@ -1,74 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv4 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - sizeofSockExtendedErr = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPFilter = 0x4 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet struct { - Family uint16 - Port uint16 - Addr [4]byte /* in_addr */ - X__pad [8]uint8 -} - -type inetPktinfo struct { - Ifindex int32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type sockExtendedErr struct { - Errno uint32 - Origin uint8 - Type uint8 - Code uint8 - Pad uint8 - Info uint32 - Data uint32 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr uint32 - Interface uint32 - Sourceaddr uint32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpFilter struct { - Data uint32 -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_arm.go b/vendor/golang.org/x/net/ipv4/zsys_linux_arm.go deleted file mode 100644 index d510357ca0..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_linux_arm.go +++ /dev/null @@ -1,72 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv4 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - sizeofSockExtendedErr = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x84 - sizeofGroupSourceReq = 0x104 - - sizeofICMPFilter = 0x4 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet struct { - Family uint16 - Port uint16 - Addr [4]byte /* in_addr */ - X__pad [8]uint8 -} - -type inetPktinfo struct { - Ifindex int32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type sockExtendedErr struct { - Errno uint32 - Origin uint8 - Type uint8 - Code uint8 - Pad uint8 - Info uint32 - Data uint32 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr uint32 - Interface uint32 - Sourceaddr uint32 -} - -type groupReq struct { - Interface uint32 - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpFilter struct { - Data uint32 -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_arm64.go b/vendor/golang.org/x/net/ipv4/zsys_linux_arm64.go deleted file mode 100644 index eb10cc79bd..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_linux_arm64.go +++ /dev/null @@ -1,74 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv4 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - sizeofSockExtendedErr = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPFilter = 0x4 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet struct { - Family uint16 - Port uint16 - Addr [4]byte /* in_addr */ - X__pad [8]uint8 -} - -type inetPktinfo struct { - Ifindex int32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type sockExtendedErr struct { - Errno uint32 - Origin uint8 - Type uint8 - Code uint8 - Pad uint8 - Info uint32 - Data uint32 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr uint32 - Interface uint32 - Sourceaddr uint32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpFilter struct { - Data uint32 -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_loong64.go b/vendor/golang.org/x/net/ipv4/zsys_linux_loong64.go deleted file mode 100644 index 54f9e13948..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_linux_loong64.go +++ /dev/null @@ -1,76 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -//go:build loong64 - -package ipv4 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - sizeofSockExtendedErr = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPFilter = 0x4 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet struct { - Family uint16 - Port uint16 - Addr [4]byte /* in_addr */ - X__pad [8]uint8 -} - -type inetPktinfo struct { - Ifindex int32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type sockExtendedErr struct { - Errno uint32 - Origin uint8 - Type uint8 - Code uint8 - Pad uint8 - Info uint32 - Data uint32 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr uint32 - Interface uint32 - Sourceaddr uint32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpFilter struct { - Data uint32 -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_mips.go b/vendor/golang.org/x/net/ipv4/zsys_linux_mips.go deleted file mode 100644 index d510357ca0..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_linux_mips.go +++ /dev/null @@ -1,72 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv4 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - sizeofSockExtendedErr = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x84 - sizeofGroupSourceReq = 0x104 - - sizeofICMPFilter = 0x4 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet struct { - Family uint16 - Port uint16 - Addr [4]byte /* in_addr */ - X__pad [8]uint8 -} - -type inetPktinfo struct { - Ifindex int32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type sockExtendedErr struct { - Errno uint32 - Origin uint8 - Type uint8 - Code uint8 - Pad uint8 - Info uint32 - Data uint32 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr uint32 - Interface uint32 - Sourceaddr uint32 -} - -type groupReq struct { - Interface uint32 - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpFilter struct { - Data uint32 -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_mips64.go b/vendor/golang.org/x/net/ipv4/zsys_linux_mips64.go deleted file mode 100644 index eb10cc79bd..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_linux_mips64.go +++ /dev/null @@ -1,74 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv4 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - sizeofSockExtendedErr = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPFilter = 0x4 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet struct { - Family uint16 - Port uint16 - Addr [4]byte /* in_addr */ - X__pad [8]uint8 -} - -type inetPktinfo struct { - Ifindex int32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type sockExtendedErr struct { - Errno uint32 - Origin uint8 - Type uint8 - Code uint8 - Pad uint8 - Info uint32 - Data uint32 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr uint32 - Interface uint32 - Sourceaddr uint32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpFilter struct { - Data uint32 -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_mips64le.go b/vendor/golang.org/x/net/ipv4/zsys_linux_mips64le.go deleted file mode 100644 index eb10cc79bd..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_linux_mips64le.go +++ /dev/null @@ -1,74 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv4 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - sizeofSockExtendedErr = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPFilter = 0x4 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet struct { - Family uint16 - Port uint16 - Addr [4]byte /* in_addr */ - X__pad [8]uint8 -} - -type inetPktinfo struct { - Ifindex int32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type sockExtendedErr struct { - Errno uint32 - Origin uint8 - Type uint8 - Code uint8 - Pad uint8 - Info uint32 - Data uint32 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr uint32 - Interface uint32 - Sourceaddr uint32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpFilter struct { - Data uint32 -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_mipsle.go b/vendor/golang.org/x/net/ipv4/zsys_linux_mipsle.go deleted file mode 100644 index d510357ca0..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_linux_mipsle.go +++ /dev/null @@ -1,72 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv4 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - sizeofSockExtendedErr = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x84 - sizeofGroupSourceReq = 0x104 - - sizeofICMPFilter = 0x4 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet struct { - Family uint16 - Port uint16 - Addr [4]byte /* in_addr */ - X__pad [8]uint8 -} - -type inetPktinfo struct { - Ifindex int32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type sockExtendedErr struct { - Errno uint32 - Origin uint8 - Type uint8 - Code uint8 - Pad uint8 - Info uint32 - Data uint32 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr uint32 - Interface uint32 - Sourceaddr uint32 -} - -type groupReq struct { - Interface uint32 - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpFilter struct { - Data uint32 -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_ppc.go b/vendor/golang.org/x/net/ipv4/zsys_linux_ppc.go deleted file mode 100644 index 29202e4011..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_linux_ppc.go +++ /dev/null @@ -1,72 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv4 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - sizeofSockExtendedErr = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x84 - sizeofGroupSourceReq = 0x104 - - sizeofICMPFilter = 0x4 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]uint8 -} - -type sockaddrInet struct { - Family uint16 - Port uint16 - Addr [4]byte /* in_addr */ - X__pad [8]uint8 -} - -type inetPktinfo struct { - Ifindex int32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type sockExtendedErr struct { - Errno uint32 - Origin uint8 - Type uint8 - Code uint8 - Pad uint8 - Info uint32 - Data uint32 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr uint32 - Interface uint32 - Sourceaddr uint32 -} - -type groupReq struct { - Interface uint32 - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpFilter struct { - Data uint32 -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_ppc64.go b/vendor/golang.org/x/net/ipv4/zsys_linux_ppc64.go deleted file mode 100644 index eb10cc79bd..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_linux_ppc64.go +++ /dev/null @@ -1,74 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv4 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - sizeofSockExtendedErr = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPFilter = 0x4 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet struct { - Family uint16 - Port uint16 - Addr [4]byte /* in_addr */ - X__pad [8]uint8 -} - -type inetPktinfo struct { - Ifindex int32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type sockExtendedErr struct { - Errno uint32 - Origin uint8 - Type uint8 - Code uint8 - Pad uint8 - Info uint32 - Data uint32 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr uint32 - Interface uint32 - Sourceaddr uint32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpFilter struct { - Data uint32 -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_ppc64le.go b/vendor/golang.org/x/net/ipv4/zsys_linux_ppc64le.go deleted file mode 100644 index eb10cc79bd..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_linux_ppc64le.go +++ /dev/null @@ -1,74 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv4 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - sizeofSockExtendedErr = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPFilter = 0x4 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet struct { - Family uint16 - Port uint16 - Addr [4]byte /* in_addr */ - X__pad [8]uint8 -} - -type inetPktinfo struct { - Ifindex int32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type sockExtendedErr struct { - Errno uint32 - Origin uint8 - Type uint8 - Code uint8 - Pad uint8 - Info uint32 - Data uint32 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr uint32 - Interface uint32 - Sourceaddr uint32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpFilter struct { - Data uint32 -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_riscv64.go b/vendor/golang.org/x/net/ipv4/zsys_linux_riscv64.go deleted file mode 100644 index 78374a5250..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_linux_riscv64.go +++ /dev/null @@ -1,76 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -//go:build riscv64 - -package ipv4 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - sizeofSockExtendedErr = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPFilter = 0x4 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet struct { - Family uint16 - Port uint16 - Addr [4]byte /* in_addr */ - X__pad [8]uint8 -} - -type inetPktinfo struct { - Ifindex int32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type sockExtendedErr struct { - Errno uint32 - Origin uint8 - Type uint8 - Code uint8 - Pad uint8 - Info uint32 - Data uint32 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr uint32 - Interface uint32 - Sourceaddr uint32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpFilter struct { - Data uint32 -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_linux_s390x.go b/vendor/golang.org/x/net/ipv4/zsys_linux_s390x.go deleted file mode 100644 index eb10cc79bd..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_linux_s390x.go +++ /dev/null @@ -1,74 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv4 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - sizeofSockExtendedErr = 0x10 - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPFilter = 0x4 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet struct { - Family uint16 - Port uint16 - Addr [4]byte /* in_addr */ - X__pad [8]uint8 -} - -type inetPktinfo struct { - Ifindex int32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type sockExtendedErr struct { - Errno uint32 - Origin uint8 - Type uint8 - Code uint8 - Pad uint8 - Info uint32 - Data uint32 -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr uint32 - Interface uint32 - Sourceaddr uint32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpFilter struct { - Data uint32 -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_netbsd.go b/vendor/golang.org/x/net/ipv4/zsys_netbsd.go deleted file mode 100644 index a2ef2f6d6d..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_netbsd.go +++ /dev/null @@ -1,13 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_netbsd.go - -package ipv4 - -const ( - sizeofIPMreq = 0x8 -) - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_openbsd.go b/vendor/golang.org/x/net/ipv4/zsys_openbsd.go deleted file mode 100644 index b293a338f8..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_openbsd.go +++ /dev/null @@ -1,13 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_openbsd.go - -package ipv4 - -const ( - sizeofIPMreq = 0x8 -) - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_solaris.go b/vendor/golang.org/x/net/ipv4/zsys_solaris.go deleted file mode 100644 index e1a961bb61..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_solaris.go +++ /dev/null @@ -1,57 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_solaris.go - -package ipv4 - -const ( - sizeofSockaddrStorage = 0x100 - sizeofSockaddrInet = 0x10 - sizeofInetPktinfo = 0xc - - sizeofIPMreq = 0x8 - sizeofIPMreqSource = 0xc - sizeofGroupReq = 0x104 - sizeofGroupSourceReq = 0x204 -) - -type sockaddrStorage struct { - Family uint16 - X_ss_pad1 [6]int8 - X_ss_align float64 - X_ss_pad2 [240]int8 -} - -type sockaddrInet struct { - Family uint16 - Port uint16 - Addr [4]byte /* in_addr */ - Zero [8]int8 -} - -type inetPktinfo struct { - Ifindex uint32 - Spec_dst [4]byte /* in_addr */ - Addr [4]byte /* in_addr */ -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type ipMreqSource struct { - Multiaddr [4]byte /* in_addr */ - Sourceaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [256]byte -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [256]byte - Pad_cgo_1 [256]byte -} diff --git a/vendor/golang.org/x/net/ipv4/zsys_zos_s390x.go b/vendor/golang.org/x/net/ipv4/zsys_zos_s390x.go deleted file mode 100644 index 692abf6882..0000000000 --- a/vendor/golang.org/x/net/ipv4/zsys_zos_s390x.go +++ /dev/null @@ -1,56 +0,0 @@ -// Copyright 2020 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Hand edited based on zerrors_zos_s390x.go -// TODO(Bill O'Farrell): auto-generate. - -package ipv4 - -const ( - sizeofIPMreq = 8 - sizeofSockaddrInet4 = 16 - sizeofSockaddrStorage = 128 - sizeofGroupReq = 136 - sizeofGroupSourceReq = 264 - sizeofInetPktinfo = 8 -) - -type sockaddrInet4 struct { - Len uint8 - Family uint8 - Port uint16 - Addr [4]byte - Zero [8]uint8 -} - -type inetPktinfo struct { - Addr [4]byte - Ifindex uint32 -} - -type sockaddrStorage struct { - Len uint8 - Family byte - ss_pad1 [6]byte - ss_align int64 - ss_pad2 [112]byte -} - -type groupReq struct { - Interface uint32 - reserved uint32 - Group sockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - reserved uint32 - Group sockaddrStorage - Source sockaddrStorage -} - -type ipMreq struct { - Multiaddr [4]byte /* in_addr */ - Interface [4]byte /* in_addr */ -} diff --git a/vendor/golang.org/x/net/ipv6/batch.go b/vendor/golang.org/x/net/ipv6/batch.go deleted file mode 100644 index 2ccb9849c7..0000000000 --- a/vendor/golang.org/x/net/ipv6/batch.go +++ /dev/null @@ -1,116 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import ( - "net" - "runtime" - - "golang.org/x/net/internal/socket" -) - -// BUG(mikio): On Windows, the ReadBatch and WriteBatch methods of -// PacketConn are not implemented. - -// A Message represents an IO message. -// -// type Message struct { -// Buffers [][]byte -// OOB []byte -// Addr net.Addr -// N int -// NN int -// Flags int -// } -// -// The Buffers fields represents a list of contiguous buffers, which -// can be used for vectored IO, for example, putting a header and a -// payload in each slice. -// When writing, the Buffers field must contain at least one byte to -// write. -// When reading, the Buffers field will always contain a byte to read. -// -// The OOB field contains protocol-specific control or miscellaneous -// ancillary data known as out-of-band data. -// It can be nil when not required. -// -// The Addr field specifies a destination address when writing. -// It can be nil when the underlying protocol of the endpoint uses -// connection-oriented communication. -// After a successful read, it may contain the source address on the -// received packet. -// -// The N field indicates the number of bytes read or written from/to -// Buffers. -// -// The NN field indicates the number of bytes read or written from/to -// OOB. -// -// The Flags field contains protocol-specific information on the -// received message. -type Message = socket.Message - -// ReadBatch reads a batch of messages. -// -// The provided flags is a set of platform-dependent flags, such as -// syscall.MSG_PEEK. -// -// On a successful read it returns the number of messages received, up -// to len(ms). -// -// On Linux, a batch read will be optimized. -// On other platforms, this method will read only a single message. -func (c *payloadHandler) ReadBatch(ms []Message, flags int) (int, error) { - if !c.ok() { - return 0, errInvalidConn - } - switch runtime.GOOS { - case "linux": - n, err := c.RecvMsgs([]socket.Message(ms), flags) - if err != nil { - err = &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err} - } - return n, err - default: - n := 1 - err := c.RecvMsg(&ms[0], flags) - if err != nil { - n = 0 - err = &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err} - } - return n, err - } -} - -// WriteBatch writes a batch of messages. -// -// The provided flags is a set of platform-dependent flags, such as -// syscall.MSG_DONTROUTE. -// -// It returns the number of messages written on a successful write. -// -// On Linux, a batch write will be optimized. -// On other platforms, this method will write only a single message. -func (c *payloadHandler) WriteBatch(ms []Message, flags int) (int, error) { - if !c.ok() { - return 0, errInvalidConn - } - switch runtime.GOOS { - case "linux": - n, err := c.SendMsgs([]socket.Message(ms), flags) - if err != nil { - err = &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err} - } - return n, err - default: - n := 1 - err := c.SendMsg(&ms[0], flags) - if err != nil { - n = 0 - err = &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err} - } - return n, err - } -} diff --git a/vendor/golang.org/x/net/ipv6/control.go b/vendor/golang.org/x/net/ipv6/control.go deleted file mode 100644 index 2da644413b..0000000000 --- a/vendor/golang.org/x/net/ipv6/control.go +++ /dev/null @@ -1,187 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import ( - "fmt" - "net" - "sync" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" -) - -// Note that RFC 3542 obsoletes RFC 2292 but OS X Snow Leopard and the -// former still support RFC 2292 only. Please be aware that almost -// all protocol implementations prohibit using a combination of RFC -// 2292 and RFC 3542 for some practical reasons. - -type rawOpt struct { - sync.RWMutex - cflags ControlFlags -} - -func (c *rawOpt) set(f ControlFlags) { c.cflags |= f } -func (c *rawOpt) clear(f ControlFlags) { c.cflags &^= f } -func (c *rawOpt) isset(f ControlFlags) bool { return c.cflags&f != 0 } - -// A ControlFlags represents per packet basis IP-level socket option -// control flags. -type ControlFlags uint - -const ( - FlagTrafficClass ControlFlags = 1 << iota // pass the traffic class on the received packet - FlagHopLimit // pass the hop limit on the received packet - FlagSrc // pass the source address on the received packet - FlagDst // pass the destination address on the received packet - FlagInterface // pass the interface index on the received packet - FlagPathMTU // pass the path MTU on the received packet path -) - -const flagPacketInfo = FlagDst | FlagInterface - -// A ControlMessage represents per packet basis IP-level socket -// options. -type ControlMessage struct { - // Receiving socket options: SetControlMessage allows to - // receive the options from the protocol stack using ReadFrom - // method of PacketConn. - // - // Specifying socket options: ControlMessage for WriteTo - // method of PacketConn allows to send the options to the - // protocol stack. - // - TrafficClass int // traffic class, must be 1 <= value <= 255 when specifying - HopLimit int // hop limit, must be 1 <= value <= 255 when specifying - Src net.IP // source address, specifying only - Dst net.IP // destination address, receiving only - IfIndex int // interface index, must be 1 <= value when specifying - NextHop net.IP // next hop address, specifying only - MTU int // path MTU, receiving only -} - -func (cm *ControlMessage) String() string { - if cm == nil { - return "" - } - return fmt.Sprintf("tclass=%#x hoplim=%d src=%v dst=%v ifindex=%d nexthop=%v mtu=%d", cm.TrafficClass, cm.HopLimit, cm.Src, cm.Dst, cm.IfIndex, cm.NextHop, cm.MTU) -} - -// Marshal returns the binary encoding of cm. -func (cm *ControlMessage) Marshal() []byte { - if cm == nil { - return nil - } - var l int - tclass := false - if ctlOpts[ctlTrafficClass].name > 0 && cm.TrafficClass > 0 { - tclass = true - l += socket.ControlMessageSpace(ctlOpts[ctlTrafficClass].length) - } - hoplimit := false - if ctlOpts[ctlHopLimit].name > 0 && cm.HopLimit > 0 { - hoplimit = true - l += socket.ControlMessageSpace(ctlOpts[ctlHopLimit].length) - } - pktinfo := false - if ctlOpts[ctlPacketInfo].name > 0 && (cm.Src.To16() != nil && cm.Src.To4() == nil || cm.IfIndex > 0) { - pktinfo = true - l += socket.ControlMessageSpace(ctlOpts[ctlPacketInfo].length) - } - nexthop := false - if ctlOpts[ctlNextHop].name > 0 && cm.NextHop.To16() != nil && cm.NextHop.To4() == nil { - nexthop = true - l += socket.ControlMessageSpace(ctlOpts[ctlNextHop].length) - } - var b []byte - if l > 0 { - b = make([]byte, l) - bb := b - if tclass { - bb = ctlOpts[ctlTrafficClass].marshal(bb, cm) - } - if hoplimit { - bb = ctlOpts[ctlHopLimit].marshal(bb, cm) - } - if pktinfo { - bb = ctlOpts[ctlPacketInfo].marshal(bb, cm) - } - if nexthop { - bb = ctlOpts[ctlNextHop].marshal(bb, cm) - } - } - return b -} - -// Parse parses b as a control message and stores the result in cm. -func (cm *ControlMessage) Parse(b []byte) error { - ms, err := socket.ControlMessage(b).Parse() - if err != nil { - return err - } - for _, m := range ms { - lvl, typ, l, err := m.ParseHeader() - if err != nil { - return err - } - if lvl != iana.ProtocolIPv6 { - continue - } - switch { - case typ == ctlOpts[ctlTrafficClass].name && l >= ctlOpts[ctlTrafficClass].length: - ctlOpts[ctlTrafficClass].parse(cm, m.Data(l)) - case typ == ctlOpts[ctlHopLimit].name && l >= ctlOpts[ctlHopLimit].length: - ctlOpts[ctlHopLimit].parse(cm, m.Data(l)) - case typ == ctlOpts[ctlPacketInfo].name && l >= ctlOpts[ctlPacketInfo].length: - ctlOpts[ctlPacketInfo].parse(cm, m.Data(l)) - case typ == ctlOpts[ctlPathMTU].name && l >= ctlOpts[ctlPathMTU].length: - ctlOpts[ctlPathMTU].parse(cm, m.Data(l)) - } - } - return nil -} - -// NewControlMessage returns a new control message. -// -// The returned message is large enough for options specified by cf. -func NewControlMessage(cf ControlFlags) []byte { - opt := rawOpt{cflags: cf} - var l int - if opt.isset(FlagTrafficClass) && ctlOpts[ctlTrafficClass].name > 0 { - l += socket.ControlMessageSpace(ctlOpts[ctlTrafficClass].length) - } - if opt.isset(FlagHopLimit) && ctlOpts[ctlHopLimit].name > 0 { - l += socket.ControlMessageSpace(ctlOpts[ctlHopLimit].length) - } - if opt.isset(flagPacketInfo) && ctlOpts[ctlPacketInfo].name > 0 { - l += socket.ControlMessageSpace(ctlOpts[ctlPacketInfo].length) - } - if opt.isset(FlagPathMTU) && ctlOpts[ctlPathMTU].name > 0 { - l += socket.ControlMessageSpace(ctlOpts[ctlPathMTU].length) - } - var b []byte - if l > 0 { - b = make([]byte, l) - } - return b -} - -// Ancillary data socket options -const ( - ctlTrafficClass = iota // header field - ctlHopLimit // header field - ctlPacketInfo // inbound or outbound packet path - ctlNextHop // nexthop - ctlPathMTU // path mtu - ctlMax -) - -// A ctlOpt represents a binding for ancillary data socket option. -type ctlOpt struct { - name int // option name, must be equal or greater than 1 - length int // option length - marshal func([]byte, *ControlMessage) []byte - parse func(*ControlMessage, []byte) -} diff --git a/vendor/golang.org/x/net/ipv6/control_rfc2292_unix.go b/vendor/golang.org/x/net/ipv6/control_rfc2292_unix.go deleted file mode 100644 index e363a3a100..0000000000 --- a/vendor/golang.org/x/net/ipv6/control_rfc2292_unix.go +++ /dev/null @@ -1,51 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build darwin - -package ipv6 - -import ( - "encoding/binary" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -func marshal2292HopLimit(b []byte, cm *ControlMessage) []byte { - m := socket.ControlMessage(b) - m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_2292HOPLIMIT, 4) - if cm != nil { - binary.NativeEndian.PutUint32(m.Data(4), uint32(cm.HopLimit)) - } - return m.Next(4) -} - -func marshal2292PacketInfo(b []byte, cm *ControlMessage) []byte { - m := socket.ControlMessage(b) - m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_2292PKTINFO, sizeofInet6Pktinfo) - if cm != nil { - pi := (*inet6Pktinfo)(unsafe.Pointer(&m.Data(sizeofInet6Pktinfo)[0])) - if ip := cm.Src.To16(); ip != nil && ip.To4() == nil { - copy(pi.Addr[:], ip) - } - if cm.IfIndex > 0 { - pi.setIfindex(cm.IfIndex) - } - } - return m.Next(sizeofInet6Pktinfo) -} - -func marshal2292NextHop(b []byte, cm *ControlMessage) []byte { - m := socket.ControlMessage(b) - m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_2292NEXTHOP, sizeofSockaddrInet6) - if cm != nil { - sa := (*sockaddrInet6)(unsafe.Pointer(&m.Data(sizeofSockaddrInet6)[0])) - sa.setSockaddr(cm.NextHop, cm.IfIndex) - } - return m.Next(sizeofSockaddrInet6) -} diff --git a/vendor/golang.org/x/net/ipv6/control_rfc3542_unix.go b/vendor/golang.org/x/net/ipv6/control_rfc3542_unix.go deleted file mode 100644 index 95259662e3..0000000000 --- a/vendor/golang.org/x/net/ipv6/control_rfc3542_unix.go +++ /dev/null @@ -1,97 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos - -package ipv6 - -import ( - "encoding/binary" - "net" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -func marshalTrafficClass(b []byte, cm *ControlMessage) []byte { - m := socket.ControlMessage(b) - m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_TCLASS, 4) - if cm != nil { - binary.NativeEndian.PutUint32(m.Data(4), uint32(cm.TrafficClass)) - } - return m.Next(4) -} - -func parseTrafficClass(cm *ControlMessage, b []byte) { - cm.TrafficClass = int(binary.NativeEndian.Uint32(b[:4])) -} - -func marshalHopLimit(b []byte, cm *ControlMessage) []byte { - m := socket.ControlMessage(b) - m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_HOPLIMIT, 4) - if cm != nil { - binary.NativeEndian.PutUint32(m.Data(4), uint32(cm.HopLimit)) - } - return m.Next(4) -} - -func parseHopLimit(cm *ControlMessage, b []byte) { - cm.HopLimit = int(binary.NativeEndian.Uint32(b[:4])) -} - -func marshalPacketInfo(b []byte, cm *ControlMessage) []byte { - m := socket.ControlMessage(b) - m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_PKTINFO, sizeofInet6Pktinfo) - if cm != nil { - pi := (*inet6Pktinfo)(unsafe.Pointer(&m.Data(sizeofInet6Pktinfo)[0])) - if ip := cm.Src.To16(); ip != nil && ip.To4() == nil { - copy(pi.Addr[:], ip) - } - if cm.IfIndex > 0 { - pi.setIfindex(cm.IfIndex) - } - } - return m.Next(sizeofInet6Pktinfo) -} - -func parsePacketInfo(cm *ControlMessage, b []byte) { - pi := (*inet6Pktinfo)(unsafe.Pointer(&b[0])) - if len(cm.Dst) < net.IPv6len { - cm.Dst = make(net.IP, net.IPv6len) - } - copy(cm.Dst, pi.Addr[:]) - cm.IfIndex = int(pi.Ifindex) -} - -func marshalNextHop(b []byte, cm *ControlMessage) []byte { - m := socket.ControlMessage(b) - m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_NEXTHOP, sizeofSockaddrInet6) - if cm != nil { - sa := (*sockaddrInet6)(unsafe.Pointer(&m.Data(sizeofSockaddrInet6)[0])) - sa.setSockaddr(cm.NextHop, cm.IfIndex) - } - return m.Next(sizeofSockaddrInet6) -} - -func parseNextHop(cm *ControlMessage, b []byte) { -} - -func marshalPathMTU(b []byte, cm *ControlMessage) []byte { - m := socket.ControlMessage(b) - m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_PATHMTU, sizeofIPv6Mtuinfo) - return m.Next(sizeofIPv6Mtuinfo) -} - -func parsePathMTU(cm *ControlMessage, b []byte) { - mi := (*ipv6Mtuinfo)(unsafe.Pointer(&b[0])) - if len(cm.Dst) < net.IPv6len { - cm.Dst = make(net.IP, net.IPv6len) - } - copy(cm.Dst, mi.Addr.Addr[:]) - cm.IfIndex = int(mi.Addr.Scope_id) - cm.MTU = int(mi.Mtu) -} diff --git a/vendor/golang.org/x/net/ipv6/control_stub.go b/vendor/golang.org/x/net/ipv6/control_stub.go deleted file mode 100644 index eb28ce7534..0000000000 --- a/vendor/golang.org/x/net/ipv6/control_stub.go +++ /dev/null @@ -1,13 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !windows && !zos - -package ipv6 - -import "golang.org/x/net/internal/socket" - -func setControlMessage(c *socket.Conn, opt *rawOpt, cf ControlFlags, on bool) error { - return errNotImplemented -} diff --git a/vendor/golang.org/x/net/ipv6/control_unix.go b/vendor/golang.org/x/net/ipv6/control_unix.go deleted file mode 100644 index 9c73b8647e..0000000000 --- a/vendor/golang.org/x/net/ipv6/control_unix.go +++ /dev/null @@ -1,55 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos - -package ipv6 - -import "golang.org/x/net/internal/socket" - -func setControlMessage(c *socket.Conn, opt *rawOpt, cf ControlFlags, on bool) error { - opt.Lock() - defer opt.Unlock() - if so, ok := sockOpts[ssoReceiveTrafficClass]; ok && cf&FlagTrafficClass != 0 { - if err := so.SetInt(c, boolint(on)); err != nil { - return err - } - if on { - opt.set(FlagTrafficClass) - } else { - opt.clear(FlagTrafficClass) - } - } - if so, ok := sockOpts[ssoReceiveHopLimit]; ok && cf&FlagHopLimit != 0 { - if err := so.SetInt(c, boolint(on)); err != nil { - return err - } - if on { - opt.set(FlagHopLimit) - } else { - opt.clear(FlagHopLimit) - } - } - if so, ok := sockOpts[ssoReceivePacketInfo]; ok && cf&flagPacketInfo != 0 { - if err := so.SetInt(c, boolint(on)); err != nil { - return err - } - if on { - opt.set(cf & flagPacketInfo) - } else { - opt.clear(cf & flagPacketInfo) - } - } - if so, ok := sockOpts[ssoReceivePathMTU]; ok && cf&FlagPathMTU != 0 { - if err := so.SetInt(c, boolint(on)); err != nil { - return err - } - if on { - opt.set(FlagPathMTU) - } else { - opt.clear(FlagPathMTU) - } - } - return nil -} diff --git a/vendor/golang.org/x/net/ipv6/control_windows.go b/vendor/golang.org/x/net/ipv6/control_windows.go deleted file mode 100644 index 8882d81934..0000000000 --- a/vendor/golang.org/x/net/ipv6/control_windows.go +++ /dev/null @@ -1,12 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import "golang.org/x/net/internal/socket" - -func setControlMessage(c *socket.Conn, opt *rawOpt, cf ControlFlags, on bool) error { - // TODO(mikio): implement this - return errNotImplemented -} diff --git a/vendor/golang.org/x/net/ipv6/dgramopt.go b/vendor/golang.org/x/net/ipv6/dgramopt.go deleted file mode 100644 index 846f0e1f9c..0000000000 --- a/vendor/golang.org/x/net/ipv6/dgramopt.go +++ /dev/null @@ -1,301 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import ( - "net" - - "golang.org/x/net/bpf" -) - -// MulticastHopLimit returns the hop limit field value for outgoing -// multicast packets. -func (c *dgramOpt) MulticastHopLimit() (int, error) { - if !c.ok() { - return 0, errInvalidConn - } - so, ok := sockOpts[ssoMulticastHopLimit] - if !ok { - return 0, errNotImplemented - } - return so.GetInt(c.Conn) -} - -// SetMulticastHopLimit sets the hop limit field value for future -// outgoing multicast packets. -func (c *dgramOpt) SetMulticastHopLimit(hoplim int) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoMulticastHopLimit] - if !ok { - return errNotImplemented - } - return so.SetInt(c.Conn, hoplim) -} - -// MulticastInterface returns the default interface for multicast -// packet transmissions. -func (c *dgramOpt) MulticastInterface() (*net.Interface, error) { - if !c.ok() { - return nil, errInvalidConn - } - so, ok := sockOpts[ssoMulticastInterface] - if !ok { - return nil, errNotImplemented - } - return so.getMulticastInterface(c.Conn) -} - -// SetMulticastInterface sets the default interface for future -// multicast packet transmissions. -func (c *dgramOpt) SetMulticastInterface(ifi *net.Interface) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoMulticastInterface] - if !ok { - return errNotImplemented - } - return so.setMulticastInterface(c.Conn, ifi) -} - -// MulticastLoopback reports whether transmitted multicast packets -// should be copied and send back to the originator. -func (c *dgramOpt) MulticastLoopback() (bool, error) { - if !c.ok() { - return false, errInvalidConn - } - so, ok := sockOpts[ssoMulticastLoopback] - if !ok { - return false, errNotImplemented - } - on, err := so.GetInt(c.Conn) - if err != nil { - return false, err - } - return on == 1, nil -} - -// SetMulticastLoopback sets whether transmitted multicast packets -// should be copied and send back to the originator. -func (c *dgramOpt) SetMulticastLoopback(on bool) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoMulticastLoopback] - if !ok { - return errNotImplemented - } - return so.SetInt(c.Conn, boolint(on)) -} - -// JoinGroup joins the group address group on the interface ifi. -// By default all sources that can cast data to group are accepted. -// It's possible to mute and unmute data transmission from a specific -// source by using ExcludeSourceSpecificGroup and -// IncludeSourceSpecificGroup. -// JoinGroup uses the system assigned multicast interface when ifi is -// nil, although this is not recommended because the assignment -// depends on platforms and sometimes it might require routing -// configuration. -func (c *dgramOpt) JoinGroup(ifi *net.Interface, group net.Addr) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoJoinGroup] - if !ok { - return errNotImplemented - } - grp := netAddrToIP16(group) - if grp == nil { - return errMissingAddress - } - return so.setGroup(c.Conn, ifi, grp) -} - -// LeaveGroup leaves the group address group on the interface ifi -// regardless of whether the group is any-source group or -// source-specific group. -func (c *dgramOpt) LeaveGroup(ifi *net.Interface, group net.Addr) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoLeaveGroup] - if !ok { - return errNotImplemented - } - grp := netAddrToIP16(group) - if grp == nil { - return errMissingAddress - } - return so.setGroup(c.Conn, ifi, grp) -} - -// JoinSourceSpecificGroup joins the source-specific group comprising -// group and source on the interface ifi. -// JoinSourceSpecificGroup uses the system assigned multicast -// interface when ifi is nil, although this is not recommended because -// the assignment depends on platforms and sometimes it might require -// routing configuration. -func (c *dgramOpt) JoinSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoJoinSourceGroup] - if !ok { - return errNotImplemented - } - grp := netAddrToIP16(group) - if grp == nil { - return errMissingAddress - } - src := netAddrToIP16(source) - if src == nil { - return errMissingAddress - } - return so.setSourceGroup(c.Conn, ifi, grp, src) -} - -// LeaveSourceSpecificGroup leaves the source-specific group on the -// interface ifi. -func (c *dgramOpt) LeaveSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoLeaveSourceGroup] - if !ok { - return errNotImplemented - } - grp := netAddrToIP16(group) - if grp == nil { - return errMissingAddress - } - src := netAddrToIP16(source) - if src == nil { - return errMissingAddress - } - return so.setSourceGroup(c.Conn, ifi, grp, src) -} - -// ExcludeSourceSpecificGroup excludes the source-specific group from -// the already joined any-source groups by JoinGroup on the interface -// ifi. -func (c *dgramOpt) ExcludeSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoBlockSourceGroup] - if !ok { - return errNotImplemented - } - grp := netAddrToIP16(group) - if grp == nil { - return errMissingAddress - } - src := netAddrToIP16(source) - if src == nil { - return errMissingAddress - } - return so.setSourceGroup(c.Conn, ifi, grp, src) -} - -// IncludeSourceSpecificGroup includes the excluded source-specific -// group by ExcludeSourceSpecificGroup again on the interface ifi. -func (c *dgramOpt) IncludeSourceSpecificGroup(ifi *net.Interface, group, source net.Addr) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoUnblockSourceGroup] - if !ok { - return errNotImplemented - } - grp := netAddrToIP16(group) - if grp == nil { - return errMissingAddress - } - src := netAddrToIP16(source) - if src == nil { - return errMissingAddress - } - return so.setSourceGroup(c.Conn, ifi, grp, src) -} - -// Checksum reports whether the kernel will compute, store or verify a -// checksum for both incoming and outgoing packets. If on is true, it -// returns an offset in bytes into the data of where the checksum -// field is located. -func (c *dgramOpt) Checksum() (on bool, offset int, err error) { - if !c.ok() { - return false, 0, errInvalidConn - } - so, ok := sockOpts[ssoChecksum] - if !ok { - return false, 0, errNotImplemented - } - offset, err = so.GetInt(c.Conn) - if err != nil { - return false, 0, err - } - if offset < 0 { - return false, 0, nil - } - return true, offset, nil -} - -// SetChecksum enables the kernel checksum processing. If on is true, -// the offset should be an offset in bytes into the data of where the -// checksum field is located. -func (c *dgramOpt) SetChecksum(on bool, offset int) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoChecksum] - if !ok { - return errNotImplemented - } - if !on { - offset = -1 - } - return so.SetInt(c.Conn, offset) -} - -// ICMPFilter returns an ICMP filter. -func (c *dgramOpt) ICMPFilter() (*ICMPFilter, error) { - if !c.ok() { - return nil, errInvalidConn - } - so, ok := sockOpts[ssoICMPFilter] - if !ok { - return nil, errNotImplemented - } - return so.getICMPFilter(c.Conn) -} - -// SetICMPFilter deploys the ICMP filter. -func (c *dgramOpt) SetICMPFilter(f *ICMPFilter) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoICMPFilter] - if !ok { - return errNotImplemented - } - return so.setICMPFilter(c.Conn, f) -} - -// SetBPF attaches a BPF program to the connection. -// -// Only supported on Linux. -func (c *dgramOpt) SetBPF(filter []bpf.RawInstruction) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoAttachFilter] - if !ok { - return errNotImplemented - } - return so.setBPF(c.Conn, filter) -} diff --git a/vendor/golang.org/x/net/ipv6/doc.go b/vendor/golang.org/x/net/ipv6/doc.go deleted file mode 100644 index 2148b814ff..0000000000 --- a/vendor/golang.org/x/net/ipv6/doc.go +++ /dev/null @@ -1,239 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package ipv6 implements IP-level socket options for the Internet -// Protocol version 6. -// -// The package provides IP-level socket options that allow -// manipulation of IPv6 facilities. -// -// The IPv6 protocol is defined in RFC 8200. -// Socket interface extensions are defined in RFC 3493, RFC 3542 and -// RFC 3678. -// MLDv1 and MLDv2 are defined in RFC 2710 and RFC 3810. -// Source-specific multicast is defined in RFC 4607. -// -// On Darwin, this package requires OS X Mavericks version 10.9 or -// above, or equivalent. -// -// # Unicasting -// -// The options for unicasting are available for net.TCPConn, -// net.UDPConn and net.IPConn which are created as network connections -// that use the IPv6 transport. When a single TCP connection carrying -// a data flow of multiple packets needs to indicate the flow is -// important, Conn is used to set the traffic class field on the IPv6 -// header for each packet. -// -// ln, err := net.Listen("tcp6", "[::]:1024") -// if err != nil { -// // error handling -// } -// defer ln.Close() -// for { -// c, err := ln.Accept() -// if err != nil { -// // error handling -// } -// go func(c net.Conn) { -// defer c.Close() -// -// The outgoing packets will be labeled DiffServ assured forwarding -// class 1 low drop precedence, known as AF11 packets. -// -// if err := ipv6.NewConn(c).SetTrafficClass(0x28); err != nil { -// // error handling -// } -// if _, err := c.Write(data); err != nil { -// // error handling -// } -// }(c) -// } -// -// # Multicasting -// -// The options for multicasting are available for net.UDPConn and -// net.IPConn which are created as network connections that use the -// IPv6 transport. A few network facilities must be prepared before -// you begin multicasting, at a minimum joining network interfaces and -// multicast groups. -// -// en0, err := net.InterfaceByName("en0") -// if err != nil { -// // error handling -// } -// en1, err := net.InterfaceByIndex(911) -// if err != nil { -// // error handling -// } -// group := net.ParseIP("ff02::114") -// -// First, an application listens to an appropriate address with an -// appropriate service port. -// -// c, err := net.ListenPacket("udp6", "[::]:1024") -// if err != nil { -// // error handling -// } -// defer c.Close() -// -// Second, the application joins multicast groups, starts listening to -// the groups on the specified network interfaces. Note that the -// service port for transport layer protocol does not matter with this -// operation as joining groups affects only network and link layer -// protocols, such as IPv6 and Ethernet. -// -// p := ipv6.NewPacketConn(c) -// if err := p.JoinGroup(en0, &net.UDPAddr{IP: group}); err != nil { -// // error handling -// } -// if err := p.JoinGroup(en1, &net.UDPAddr{IP: group}); err != nil { -// // error handling -// } -// -// The application might set per packet control message transmissions -// between the protocol stack within the kernel. When the application -// needs a destination address on an incoming packet, -// SetControlMessage of PacketConn is used to enable control message -// transmissions. -// -// if err := p.SetControlMessage(ipv6.FlagDst, true); err != nil { -// // error handling -// } -// -// The application could identify whether the received packets are -// of interest by using the control message that contains the -// destination address of the received packet. -// -// b := make([]byte, 1500) -// for { -// n, rcm, src, err := p.ReadFrom(b) -// if err != nil { -// // error handling -// } -// if rcm.Dst.IsMulticast() { -// if rcm.Dst.Equal(group) { -// // joined group, do something -// } else { -// // unknown group, discard -// continue -// } -// } -// -// The application can also send both unicast and multicast packets. -// -// p.SetTrafficClass(0x0) -// p.SetHopLimit(16) -// if _, err := p.WriteTo(data[:n], nil, src); err != nil { -// // error handling -// } -// dst := &net.UDPAddr{IP: group, Port: 1024} -// wcm := ipv6.ControlMessage{TrafficClass: 0xe0, HopLimit: 1} -// for _, ifi := range []*net.Interface{en0, en1} { -// wcm.IfIndex = ifi.Index -// if _, err := p.WriteTo(data[:n], &wcm, dst); err != nil { -// // error handling -// } -// } -// } -// -// # More multicasting -// -// An application that uses PacketConn may join multiple multicast -// groups. For example, a UDP listener with port 1024 might join two -// different groups across over two different network interfaces by -// using: -// -// c, err := net.ListenPacket("udp6", "[::]:1024") -// if err != nil { -// // error handling -// } -// defer c.Close() -// p := ipv6.NewPacketConn(c) -// if err := p.JoinGroup(en0, &net.UDPAddr{IP: net.ParseIP("ff02::1:114")}); err != nil { -// // error handling -// } -// if err := p.JoinGroup(en0, &net.UDPAddr{IP: net.ParseIP("ff02::2:114")}); err != nil { -// // error handling -// } -// if err := p.JoinGroup(en1, &net.UDPAddr{IP: net.ParseIP("ff02::2:114")}); err != nil { -// // error handling -// } -// -// It is possible for multiple UDP listeners that listen on the same -// UDP port to join the same multicast group. The net package will -// provide a socket that listens to a wildcard address with reusable -// UDP port when an appropriate multicast address prefix is passed to -// the net.ListenPacket or net.ListenUDP. -// -// c1, err := net.ListenPacket("udp6", "[ff02::]:1024") -// if err != nil { -// // error handling -// } -// defer c1.Close() -// c2, err := net.ListenPacket("udp6", "[ff02::]:1024") -// if err != nil { -// // error handling -// } -// defer c2.Close() -// p1 := ipv6.NewPacketConn(c1) -// if err := p1.JoinGroup(en0, &net.UDPAddr{IP: net.ParseIP("ff02::114")}); err != nil { -// // error handling -// } -// p2 := ipv6.NewPacketConn(c2) -// if err := p2.JoinGroup(en0, &net.UDPAddr{IP: net.ParseIP("ff02::114")}); err != nil { -// // error handling -// } -// -// Also it is possible for the application to leave or rejoin a -// multicast group on the network interface. -// -// if err := p.LeaveGroup(en0, &net.UDPAddr{IP: net.ParseIP("ff02::114")}); err != nil { -// // error handling -// } -// if err := p.JoinGroup(en0, &net.UDPAddr{IP: net.ParseIP("ff01::114")}); err != nil { -// // error handling -// } -// -// # Source-specific multicasting -// -// An application that uses PacketConn on MLDv2 supported platform is -// able to join source-specific multicast groups. -// The application may use JoinSourceSpecificGroup and -// LeaveSourceSpecificGroup for the operation known as "include" mode, -// -// ssmgroup := net.UDPAddr{IP: net.ParseIP("ff32::8000:9")} -// ssmsource := net.UDPAddr{IP: net.ParseIP("fe80::cafe")} -// if err := p.JoinSourceSpecificGroup(en0, &ssmgroup, &ssmsource); err != nil { -// // error handling -// } -// if err := p.LeaveSourceSpecificGroup(en0, &ssmgroup, &ssmsource); err != nil { -// // error handling -// } -// -// or JoinGroup, ExcludeSourceSpecificGroup, -// IncludeSourceSpecificGroup and LeaveGroup for the operation known -// as "exclude" mode. -// -// exclsource := net.UDPAddr{IP: net.ParseIP("fe80::dead")} -// if err := p.JoinGroup(en0, &ssmgroup); err != nil { -// // error handling -// } -// if err := p.ExcludeSourceSpecificGroup(en0, &ssmgroup, &exclsource); err != nil { -// // error handling -// } -// if err := p.LeaveGroup(en0, &ssmgroup); err != nil { -// // error handling -// } -// -// Note that it depends on each platform implementation what happens -// when an application which runs on MLDv2 unsupported platform uses -// JoinSourceSpecificGroup and LeaveSourceSpecificGroup. -// In general the platform tries to fall back to conversations using -// MLDv1 and starts to listen to multicast traffic. -// In the fallback case, ExcludeSourceSpecificGroup and -// IncludeSourceSpecificGroup may return an error. -package ipv6 // import "golang.org/x/net/ipv6" - -// BUG(mikio): This package is not implemented on JS, NaCl and Plan 9. diff --git a/vendor/golang.org/x/net/ipv6/endpoint.go b/vendor/golang.org/x/net/ipv6/endpoint.go deleted file mode 100644 index f534a0bf38..0000000000 --- a/vendor/golang.org/x/net/ipv6/endpoint.go +++ /dev/null @@ -1,127 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import ( - "net" - "time" - - "golang.org/x/net/internal/socket" -) - -// BUG(mikio): On Windows, the JoinSourceSpecificGroup, -// LeaveSourceSpecificGroup, ExcludeSourceSpecificGroup and -// IncludeSourceSpecificGroup methods of PacketConn are not -// implemented. - -// A Conn represents a network endpoint that uses IPv6 transport. -// It allows to set basic IP-level socket options such as traffic -// class and hop limit. -type Conn struct { - genericOpt -} - -type genericOpt struct { - *socket.Conn -} - -func (c *genericOpt) ok() bool { return c != nil && c.Conn != nil } - -// PathMTU returns a path MTU value for the destination associated -// with the endpoint. -func (c *Conn) PathMTU() (int, error) { - if !c.ok() { - return 0, errInvalidConn - } - so, ok := sockOpts[ssoPathMTU] - if !ok { - return 0, errNotImplemented - } - _, mtu, err := so.getMTUInfo(c.Conn) - if err != nil { - return 0, err - } - return mtu, nil -} - -// NewConn returns a new Conn. -func NewConn(c net.Conn) *Conn { - cc, _ := socket.NewConn(c) - return &Conn{ - genericOpt: genericOpt{Conn: cc}, - } -} - -// A PacketConn represents a packet network endpoint that uses IPv6 -// transport. It is used to control several IP-level socket options -// including IPv6 header manipulation. It also provides datagram -// based network I/O methods specific to the IPv6 and higher layer -// protocols such as OSPF, GRE, and UDP. -type PacketConn struct { - genericOpt - dgramOpt - payloadHandler -} - -type dgramOpt struct { - *socket.Conn -} - -func (c *dgramOpt) ok() bool { return c != nil && c.Conn != nil } - -// SetControlMessage allows to receive the per packet basis IP-level -// socket options. -func (c *PacketConn) SetControlMessage(cf ControlFlags, on bool) error { - if !c.payloadHandler.ok() { - return errInvalidConn - } - return setControlMessage(c.dgramOpt.Conn, &c.payloadHandler.rawOpt, cf, on) -} - -// SetDeadline sets the read and write deadlines associated with the -// endpoint. -func (c *PacketConn) SetDeadline(t time.Time) error { - if !c.payloadHandler.ok() { - return errInvalidConn - } - return c.payloadHandler.SetDeadline(t) -} - -// SetReadDeadline sets the read deadline associated with the -// endpoint. -func (c *PacketConn) SetReadDeadline(t time.Time) error { - if !c.payloadHandler.ok() { - return errInvalidConn - } - return c.payloadHandler.SetReadDeadline(t) -} - -// SetWriteDeadline sets the write deadline associated with the -// endpoint. -func (c *PacketConn) SetWriteDeadline(t time.Time) error { - if !c.payloadHandler.ok() { - return errInvalidConn - } - return c.payloadHandler.SetWriteDeadline(t) -} - -// Close closes the endpoint. -func (c *PacketConn) Close() error { - if !c.payloadHandler.ok() { - return errInvalidConn - } - return c.payloadHandler.Close() -} - -// NewPacketConn returns a new PacketConn using c as its underlying -// transport. -func NewPacketConn(c net.PacketConn) *PacketConn { - cc, _ := socket.NewConn(c.(net.Conn)) - return &PacketConn{ - genericOpt: genericOpt{Conn: cc}, - dgramOpt: dgramOpt{Conn: cc}, - payloadHandler: payloadHandler{PacketConn: c, Conn: cc}, - } -} diff --git a/vendor/golang.org/x/net/ipv6/genericopt.go b/vendor/golang.org/x/net/ipv6/genericopt.go deleted file mode 100644 index 0326aed6de..0000000000 --- a/vendor/golang.org/x/net/ipv6/genericopt.go +++ /dev/null @@ -1,56 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -// TrafficClass returns the traffic class field value for outgoing -// packets. -func (c *genericOpt) TrafficClass() (int, error) { - if !c.ok() { - return 0, errInvalidConn - } - so, ok := sockOpts[ssoTrafficClass] - if !ok { - return 0, errNotImplemented - } - return so.GetInt(c.Conn) -} - -// SetTrafficClass sets the traffic class field value for future -// outgoing packets. -func (c *genericOpt) SetTrafficClass(tclass int) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoTrafficClass] - if !ok { - return errNotImplemented - } - return so.SetInt(c.Conn, tclass) -} - -// HopLimit returns the hop limit field value for outgoing packets. -func (c *genericOpt) HopLimit() (int, error) { - if !c.ok() { - return 0, errInvalidConn - } - so, ok := sockOpts[ssoHopLimit] - if !ok { - return 0, errNotImplemented - } - return so.GetInt(c.Conn) -} - -// SetHopLimit sets the hop limit field value for future outgoing -// packets. -func (c *genericOpt) SetHopLimit(hoplim int) error { - if !c.ok() { - return errInvalidConn - } - so, ok := sockOpts[ssoHopLimit] - if !ok { - return errNotImplemented - } - return so.SetInt(c.Conn, hoplim) -} diff --git a/vendor/golang.org/x/net/ipv6/header.go b/vendor/golang.org/x/net/ipv6/header.go deleted file mode 100644 index e05cb08b21..0000000000 --- a/vendor/golang.org/x/net/ipv6/header.go +++ /dev/null @@ -1,55 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import ( - "encoding/binary" - "fmt" - "net" -) - -const ( - Version = 6 // protocol version - HeaderLen = 40 // header length -) - -// A Header represents an IPv6 base header. -type Header struct { - Version int // protocol version - TrafficClass int // traffic class - FlowLabel int // flow label - PayloadLen int // payload length - NextHeader int // next header - HopLimit int // hop limit - Src net.IP // source address - Dst net.IP // destination address -} - -func (h *Header) String() string { - if h == nil { - return "" - } - return fmt.Sprintf("ver=%d tclass=%#x flowlbl=%#x payloadlen=%d nxthdr=%d hoplim=%d src=%v dst=%v", h.Version, h.TrafficClass, h.FlowLabel, h.PayloadLen, h.NextHeader, h.HopLimit, h.Src, h.Dst) -} - -// ParseHeader parses b as an IPv6 base header. -func ParseHeader(b []byte) (*Header, error) { - if len(b) < HeaderLen { - return nil, errHeaderTooShort - } - h := &Header{ - Version: int(b[0]) >> 4, - TrafficClass: int(b[0]&0x0f)<<4 | int(b[1])>>4, - FlowLabel: int(b[1]&0x0f)<<16 | int(b[2])<<8 | int(b[3]), - PayloadLen: int(binary.BigEndian.Uint16(b[4:6])), - NextHeader: int(b[6]), - HopLimit: int(b[7]), - } - h.Src = make(net.IP, net.IPv6len) - copy(h.Src, b[8:24]) - h.Dst = make(net.IP, net.IPv6len) - copy(h.Dst, b[24:40]) - return h, nil -} diff --git a/vendor/golang.org/x/net/ipv6/helper.go b/vendor/golang.org/x/net/ipv6/helper.go deleted file mode 100644 index c2d508f9c3..0000000000 --- a/vendor/golang.org/x/net/ipv6/helper.go +++ /dev/null @@ -1,58 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import ( - "errors" - "net" - "runtime" -) - -var ( - errInvalidConn = errors.New("invalid connection") - errMissingAddress = errors.New("missing address") - errHeaderTooShort = errors.New("header too short") - errInvalidConnType = errors.New("invalid conn type") - errNotImplemented = errors.New("not implemented on " + runtime.GOOS + "/" + runtime.GOARCH) -) - -func boolint(b bool) int { - if b { - return 1 - } - return 0 -} - -func netAddrToIP16(a net.Addr) net.IP { - switch v := a.(type) { - case *net.UDPAddr: - if ip := v.IP.To16(); ip != nil && ip.To4() == nil { - return ip - } - case *net.IPAddr: - if ip := v.IP.To16(); ip != nil && ip.To4() == nil { - return ip - } - } - return nil -} - -func opAddr(a net.Addr) net.Addr { - switch a.(type) { - case *net.TCPAddr: - if a == nil { - return nil - } - case *net.UDPAddr: - if a == nil { - return nil - } - case *net.IPAddr: - if a == nil { - return nil - } - } - return a -} diff --git a/vendor/golang.org/x/net/ipv6/iana.go b/vendor/golang.org/x/net/ipv6/iana.go deleted file mode 100644 index 32db1aa949..0000000000 --- a/vendor/golang.org/x/net/ipv6/iana.go +++ /dev/null @@ -1,86 +0,0 @@ -// go generate gen.go -// Code generated by the command above; DO NOT EDIT. - -package ipv6 - -// Internet Control Message Protocol version 6 (ICMPv6) Parameters, Updated: 2018-03-09 -const ( - ICMPTypeDestinationUnreachable ICMPType = 1 // Destination Unreachable - ICMPTypePacketTooBig ICMPType = 2 // Packet Too Big - ICMPTypeTimeExceeded ICMPType = 3 // Time Exceeded - ICMPTypeParameterProblem ICMPType = 4 // Parameter Problem - ICMPTypeEchoRequest ICMPType = 128 // Echo Request - ICMPTypeEchoReply ICMPType = 129 // Echo Reply - ICMPTypeMulticastListenerQuery ICMPType = 130 // Multicast Listener Query - ICMPTypeMulticastListenerReport ICMPType = 131 // Multicast Listener Report - ICMPTypeMulticastListenerDone ICMPType = 132 // Multicast Listener Done - ICMPTypeRouterSolicitation ICMPType = 133 // Router Solicitation - ICMPTypeRouterAdvertisement ICMPType = 134 // Router Advertisement - ICMPTypeNeighborSolicitation ICMPType = 135 // Neighbor Solicitation - ICMPTypeNeighborAdvertisement ICMPType = 136 // Neighbor Advertisement - ICMPTypeRedirect ICMPType = 137 // Redirect Message - ICMPTypeRouterRenumbering ICMPType = 138 // Router Renumbering - ICMPTypeNodeInformationQuery ICMPType = 139 // ICMP Node Information Query - ICMPTypeNodeInformationResponse ICMPType = 140 // ICMP Node Information Response - ICMPTypeInverseNeighborDiscoverySolicitation ICMPType = 141 // Inverse Neighbor Discovery Solicitation Message - ICMPTypeInverseNeighborDiscoveryAdvertisement ICMPType = 142 // Inverse Neighbor Discovery Advertisement Message - ICMPTypeVersion2MulticastListenerReport ICMPType = 143 // Version 2 Multicast Listener Report - ICMPTypeHomeAgentAddressDiscoveryRequest ICMPType = 144 // Home Agent Address Discovery Request Message - ICMPTypeHomeAgentAddressDiscoveryReply ICMPType = 145 // Home Agent Address Discovery Reply Message - ICMPTypeMobilePrefixSolicitation ICMPType = 146 // Mobile Prefix Solicitation - ICMPTypeMobilePrefixAdvertisement ICMPType = 147 // Mobile Prefix Advertisement - ICMPTypeCertificationPathSolicitation ICMPType = 148 // Certification Path Solicitation Message - ICMPTypeCertificationPathAdvertisement ICMPType = 149 // Certification Path Advertisement Message - ICMPTypeMulticastRouterAdvertisement ICMPType = 151 // Multicast Router Advertisement - ICMPTypeMulticastRouterSolicitation ICMPType = 152 // Multicast Router Solicitation - ICMPTypeMulticastRouterTermination ICMPType = 153 // Multicast Router Termination - ICMPTypeFMIPv6 ICMPType = 154 // FMIPv6 Messages - ICMPTypeRPLControl ICMPType = 155 // RPL Control Message - ICMPTypeILNPv6LocatorUpdate ICMPType = 156 // ILNPv6 Locator Update Message - ICMPTypeDuplicateAddressRequest ICMPType = 157 // Duplicate Address Request - ICMPTypeDuplicateAddressConfirmation ICMPType = 158 // Duplicate Address Confirmation - ICMPTypeMPLControl ICMPType = 159 // MPL Control Message - ICMPTypeExtendedEchoRequest ICMPType = 160 // Extended Echo Request - ICMPTypeExtendedEchoReply ICMPType = 161 // Extended Echo Reply -) - -// Internet Control Message Protocol version 6 (ICMPv6) Parameters, Updated: 2018-03-09 -var icmpTypes = map[ICMPType]string{ - 1: "destination unreachable", - 2: "packet too big", - 3: "time exceeded", - 4: "parameter problem", - 128: "echo request", - 129: "echo reply", - 130: "multicast listener query", - 131: "multicast listener report", - 132: "multicast listener done", - 133: "router solicitation", - 134: "router advertisement", - 135: "neighbor solicitation", - 136: "neighbor advertisement", - 137: "redirect message", - 138: "router renumbering", - 139: "icmp node information query", - 140: "icmp node information response", - 141: "inverse neighbor discovery solicitation message", - 142: "inverse neighbor discovery advertisement message", - 143: "version 2 multicast listener report", - 144: "home agent address discovery request message", - 145: "home agent address discovery reply message", - 146: "mobile prefix solicitation", - 147: "mobile prefix advertisement", - 148: "certification path solicitation message", - 149: "certification path advertisement message", - 151: "multicast router advertisement", - 152: "multicast router solicitation", - 153: "multicast router termination", - 154: "fmipv6 messages", - 155: "rpl control message", - 156: "ilnpv6 locator update message", - 157: "duplicate address request", - 158: "duplicate address confirmation", - 159: "mpl control message", - 160: "extended echo request", - 161: "extended echo reply", -} diff --git a/vendor/golang.org/x/net/ipv6/icmp.go b/vendor/golang.org/x/net/ipv6/icmp.go deleted file mode 100644 index b7f48e27b8..0000000000 --- a/vendor/golang.org/x/net/ipv6/icmp.go +++ /dev/null @@ -1,60 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import "golang.org/x/net/internal/iana" - -// BUG(mikio): On Windows, methods related to ICMPFilter are not -// implemented. - -// An ICMPType represents a type of ICMP message. -type ICMPType int - -func (typ ICMPType) String() string { - s, ok := icmpTypes[typ] - if !ok { - return "" - } - return s -} - -// Protocol returns the ICMPv6 protocol number. -func (typ ICMPType) Protocol() int { - return iana.ProtocolIPv6ICMP -} - -// An ICMPFilter represents an ICMP message filter for incoming -// packets. The filter belongs to a packet delivery path on a host and -// it cannot interact with forwarding packets or tunnel-outer packets. -// -// Note: RFC 8200 defines a reasonable role model. A node means a -// device that implements IP. A router means a node that forwards IP -// packets not explicitly addressed to itself, and a host means a node -// that is not a router. -type ICMPFilter struct { - icmpv6Filter -} - -// Accept accepts incoming ICMP packets including the type field value -// typ. -func (f *ICMPFilter) Accept(typ ICMPType) { - f.accept(typ) -} - -// Block blocks incoming ICMP packets including the type field value -// typ. -func (f *ICMPFilter) Block(typ ICMPType) { - f.block(typ) -} - -// SetAll sets the filter action to the filter. -func (f *ICMPFilter) SetAll(block bool) { - f.setAll(block) -} - -// WillBlock reports whether the ICMP type will be blocked. -func (f *ICMPFilter) WillBlock(typ ICMPType) bool { - return f.willBlock(typ) -} diff --git a/vendor/golang.org/x/net/ipv6/icmp_bsd.go b/vendor/golang.org/x/net/ipv6/icmp_bsd.go deleted file mode 100644 index 2814534a0b..0000000000 --- a/vendor/golang.org/x/net/ipv6/icmp_bsd.go +++ /dev/null @@ -1,29 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || netbsd || openbsd - -package ipv6 - -func (f *icmpv6Filter) accept(typ ICMPType) { - f.Filt[typ>>5] |= 1 << (uint32(typ) & 31) -} - -func (f *icmpv6Filter) block(typ ICMPType) { - f.Filt[typ>>5] &^= 1 << (uint32(typ) & 31) -} - -func (f *icmpv6Filter) setAll(block bool) { - for i := range f.Filt { - if block { - f.Filt[i] = 0 - } else { - f.Filt[i] = 1<<32 - 1 - } - } -} - -func (f *icmpv6Filter) willBlock(typ ICMPType) bool { - return f.Filt[typ>>5]&(1<<(uint32(typ)&31)) == 0 -} diff --git a/vendor/golang.org/x/net/ipv6/icmp_linux.go b/vendor/golang.org/x/net/ipv6/icmp_linux.go deleted file mode 100644 index 647f6b44ff..0000000000 --- a/vendor/golang.org/x/net/ipv6/icmp_linux.go +++ /dev/null @@ -1,27 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -func (f *icmpv6Filter) accept(typ ICMPType) { - f.Data[typ>>5] &^= 1 << (uint32(typ) & 31) -} - -func (f *icmpv6Filter) block(typ ICMPType) { - f.Data[typ>>5] |= 1 << (uint32(typ) & 31) -} - -func (f *icmpv6Filter) setAll(block bool) { - for i := range f.Data { - if block { - f.Data[i] = 1<<32 - 1 - } else { - f.Data[i] = 0 - } - } -} - -func (f *icmpv6Filter) willBlock(typ ICMPType) bool { - return f.Data[typ>>5]&(1<<(uint32(typ)&31)) != 0 -} diff --git a/vendor/golang.org/x/net/ipv6/icmp_solaris.go b/vendor/golang.org/x/net/ipv6/icmp_solaris.go deleted file mode 100644 index 7c23bb1cf6..0000000000 --- a/vendor/golang.org/x/net/ipv6/icmp_solaris.go +++ /dev/null @@ -1,27 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -func (f *icmpv6Filter) accept(typ ICMPType) { - f.X__icmp6_filt[typ>>5] |= 1 << (uint32(typ) & 31) -} - -func (f *icmpv6Filter) block(typ ICMPType) { - f.X__icmp6_filt[typ>>5] &^= 1 << (uint32(typ) & 31) -} - -func (f *icmpv6Filter) setAll(block bool) { - for i := range f.X__icmp6_filt { - if block { - f.X__icmp6_filt[i] = 0 - } else { - f.X__icmp6_filt[i] = 1<<32 - 1 - } - } -} - -func (f *icmpv6Filter) willBlock(typ ICMPType) bool { - return f.X__icmp6_filt[typ>>5]&(1<<(uint32(typ)&31)) == 0 -} diff --git a/vendor/golang.org/x/net/ipv6/icmp_stub.go b/vendor/golang.org/x/net/ipv6/icmp_stub.go deleted file mode 100644 index c92c9b51e1..0000000000 --- a/vendor/golang.org/x/net/ipv6/icmp_stub.go +++ /dev/null @@ -1,23 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !windows && !zos - -package ipv6 - -type icmpv6Filter struct { -} - -func (f *icmpv6Filter) accept(typ ICMPType) { -} - -func (f *icmpv6Filter) block(typ ICMPType) { -} - -func (f *icmpv6Filter) setAll(block bool) { -} - -func (f *icmpv6Filter) willBlock(typ ICMPType) bool { - return false -} diff --git a/vendor/golang.org/x/net/ipv6/icmp_windows.go b/vendor/golang.org/x/net/ipv6/icmp_windows.go deleted file mode 100644 index 443cd07367..0000000000 --- a/vendor/golang.org/x/net/ipv6/icmp_windows.go +++ /dev/null @@ -1,22 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -func (f *icmpv6Filter) accept(typ ICMPType) { - // TODO(mikio): implement this -} - -func (f *icmpv6Filter) block(typ ICMPType) { - // TODO(mikio): implement this -} - -func (f *icmpv6Filter) setAll(block bool) { - // TODO(mikio): implement this -} - -func (f *icmpv6Filter) willBlock(typ ICMPType) bool { - // TODO(mikio): implement this - return false -} diff --git a/vendor/golang.org/x/net/ipv6/icmp_zos.go b/vendor/golang.org/x/net/ipv6/icmp_zos.go deleted file mode 100644 index ddf8f093fc..0000000000 --- a/vendor/golang.org/x/net/ipv6/icmp_zos.go +++ /dev/null @@ -1,29 +0,0 @@ -// Copyright 2020 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -func (f *icmpv6Filter) accept(typ ICMPType) { - f.Filt[typ>>5] |= 1 << (uint32(typ) & 31) - -} - -func (f *icmpv6Filter) block(typ ICMPType) { - f.Filt[typ>>5] &^= 1 << (uint32(typ) & 31) - -} - -func (f *icmpv6Filter) setAll(block bool) { - for i := range f.Filt { - if block { - f.Filt[i] = 0 - } else { - f.Filt[i] = 1<<32 - 1 - } - } -} - -func (f *icmpv6Filter) willBlock(typ ICMPType) bool { - return f.Filt[typ>>5]&(1<<(uint32(typ)&31)) == 0 -} diff --git a/vendor/golang.org/x/net/ipv6/payload.go b/vendor/golang.org/x/net/ipv6/payload.go deleted file mode 100644 index a8197f1695..0000000000 --- a/vendor/golang.org/x/net/ipv6/payload.go +++ /dev/null @@ -1,23 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import ( - "net" - - "golang.org/x/net/internal/socket" -) - -// BUG(mikio): On Windows, the ControlMessage for ReadFrom and WriteTo -// methods of PacketConn is not implemented. - -// A payloadHandler represents the IPv6 datagram payload handler. -type payloadHandler struct { - net.PacketConn - *socket.Conn - rawOpt -} - -func (c *payloadHandler) ok() bool { return c != nil && c.PacketConn != nil && c.Conn != nil } diff --git a/vendor/golang.org/x/net/ipv6/payload_cmsg.go b/vendor/golang.org/x/net/ipv6/payload_cmsg.go deleted file mode 100644 index be04e4d6ae..0000000000 --- a/vendor/golang.org/x/net/ipv6/payload_cmsg.go +++ /dev/null @@ -1,70 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos - -package ipv6 - -import ( - "net" - - "golang.org/x/net/internal/socket" -) - -// ReadFrom reads a payload of the received IPv6 datagram, from the -// endpoint c, copying the payload into b. It returns the number of -// bytes copied into b, the control message cm and the source address -// src of the received datagram. -func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) { - if !c.ok() { - return 0, nil, nil, errInvalidConn - } - c.rawOpt.RLock() - m := socket.Message{ - Buffers: [][]byte{b}, - OOB: NewControlMessage(c.rawOpt.cflags), - } - c.rawOpt.RUnlock() - switch c.PacketConn.(type) { - case *net.UDPConn: - if err := c.RecvMsg(&m, 0); err != nil { - return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err} - } - case *net.IPConn: - if err := c.RecvMsg(&m, 0); err != nil { - return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err} - } - default: - return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: errInvalidConnType} - } - if m.NN > 0 { - cm = new(ControlMessage) - if err := cm.Parse(m.OOB[:m.NN]); err != nil { - return 0, nil, nil, &net.OpError{Op: "read", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Err: err} - } - cm.Src = netAddrToIP16(m.Addr) - } - return m.N, cm, m.Addr, nil -} - -// WriteTo writes a payload of the IPv6 datagram, to the destination -// address dst through the endpoint c, copying the payload from b. It -// returns the number of bytes written. The control message cm allows -// the IPv6 header fields and the datagram path to be specified. The -// cm may be nil if control of the outgoing datagram is not required. -func (c *payloadHandler) WriteTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) { - if !c.ok() { - return 0, errInvalidConn - } - m := socket.Message{ - Buffers: [][]byte{b}, - OOB: cm.Marshal(), - Addr: dst, - } - err = c.SendMsg(&m, 0) - if err != nil { - err = &net.OpError{Op: "write", Net: c.PacketConn.LocalAddr().Network(), Source: c.PacketConn.LocalAddr(), Addr: opAddr(dst), Err: err} - } - return m.N, err -} diff --git a/vendor/golang.org/x/net/ipv6/payload_nocmsg.go b/vendor/golang.org/x/net/ipv6/payload_nocmsg.go deleted file mode 100644 index 29b9ccf691..0000000000 --- a/vendor/golang.org/x/net/ipv6/payload_nocmsg.go +++ /dev/null @@ -1,38 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !zos - -package ipv6 - -import "net" - -// ReadFrom reads a payload of the received IPv6 datagram, from the -// endpoint c, copying the payload into b. It returns the number of -// bytes copied into b, the control message cm and the source address -// src of the received datagram. -func (c *payloadHandler) ReadFrom(b []byte) (n int, cm *ControlMessage, src net.Addr, err error) { - if !c.ok() { - return 0, nil, nil, errInvalidConn - } - if n, src, err = c.PacketConn.ReadFrom(b); err != nil { - return 0, nil, nil, err - } - return -} - -// WriteTo writes a payload of the IPv6 datagram, to the destination -// address dst through the endpoint c, copying the payload from b. It -// returns the number of bytes written. The control message cm allows -// the IPv6 header fields and the datagram path to be specified. The -// cm may be nil if control of the outgoing datagram is not required. -func (c *payloadHandler) WriteTo(b []byte, cm *ControlMessage, dst net.Addr) (n int, err error) { - if !c.ok() { - return 0, errInvalidConn - } - if dst == nil { - return 0, errMissingAddress - } - return c.PacketConn.WriteTo(b, dst) -} diff --git a/vendor/golang.org/x/net/ipv6/sockopt.go b/vendor/golang.org/x/net/ipv6/sockopt.go deleted file mode 100644 index cc3907df38..0000000000 --- a/vendor/golang.org/x/net/ipv6/sockopt.go +++ /dev/null @@ -1,43 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import "golang.org/x/net/internal/socket" - -// Sticky socket options -const ( - ssoTrafficClass = iota // header field for unicast packet, RFC 3542 - ssoHopLimit // header field for unicast packet, RFC 3493 - ssoMulticastInterface // outbound interface for multicast packet, RFC 3493 - ssoMulticastHopLimit // header field for multicast packet, RFC 3493 - ssoMulticastLoopback // loopback for multicast packet, RFC 3493 - ssoReceiveTrafficClass // header field on received packet, RFC 3542 - ssoReceiveHopLimit // header field on received packet, RFC 2292 or 3542 - ssoReceivePacketInfo // incbound or outbound packet path, RFC 2292 or 3542 - ssoReceivePathMTU // path mtu, RFC 3542 - ssoPathMTU // path mtu, RFC 3542 - ssoChecksum // packet checksum, RFC 2292 or 3542 - ssoICMPFilter // icmp filter, RFC 2292 or 3542 - ssoJoinGroup // any-source multicast, RFC 3493 - ssoLeaveGroup // any-source multicast, RFC 3493 - ssoJoinSourceGroup // source-specific multicast - ssoLeaveSourceGroup // source-specific multicast - ssoBlockSourceGroup // any-source or source-specific multicast - ssoUnblockSourceGroup // any-source or source-specific multicast - ssoAttachFilter // attach BPF for filtering inbound traffic -) - -// Sticky socket option value types -const ( - ssoTypeIPMreq = iota + 1 - ssoTypeGroupReq - ssoTypeGroupSourceReq -) - -// A sockOpt represents a binding for sticky socket option. -type sockOpt struct { - socket.Option - typ int // hint for option value type; optional -} diff --git a/vendor/golang.org/x/net/ipv6/sockopt_posix.go b/vendor/golang.org/x/net/ipv6/sockopt_posix.go deleted file mode 100644 index 34dfed588e..0000000000 --- a/vendor/golang.org/x/net/ipv6/sockopt_posix.go +++ /dev/null @@ -1,89 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || windows || zos - -package ipv6 - -import ( - "net" - "runtime" - "unsafe" - - "golang.org/x/net/bpf" - "golang.org/x/net/internal/socket" -) - -func (so *sockOpt) getMulticastInterface(c *socket.Conn) (*net.Interface, error) { - n, err := so.GetInt(c) - if err != nil { - return nil, err - } - return net.InterfaceByIndex(n) -} - -func (so *sockOpt) setMulticastInterface(c *socket.Conn, ifi *net.Interface) error { - var n int - if ifi != nil { - n = ifi.Index - } - return so.SetInt(c, n) -} - -func (so *sockOpt) getICMPFilter(c *socket.Conn) (*ICMPFilter, error) { - b := make([]byte, so.Len) - n, err := so.Get(c, b) - if err != nil { - return nil, err - } - if n != sizeofICMPv6Filter { - return nil, errNotImplemented - } - return (*ICMPFilter)(unsafe.Pointer(&b[0])), nil -} - -func (so *sockOpt) setICMPFilter(c *socket.Conn, f *ICMPFilter) error { - b := (*[sizeofICMPv6Filter]byte)(unsafe.Pointer(f))[:sizeofICMPv6Filter] - return so.Set(c, b) -} - -func (so *sockOpt) getMTUInfo(c *socket.Conn) (*net.Interface, int, error) { - b := make([]byte, so.Len) - n, err := so.Get(c, b) - if err != nil { - return nil, 0, err - } - if n != sizeofIPv6Mtuinfo { - return nil, 0, errNotImplemented - } - mi := (*ipv6Mtuinfo)(unsafe.Pointer(&b[0])) - if mi.Addr.Scope_id == 0 || runtime.GOOS == "aix" { - // AIX kernel might return a wrong address. - return nil, int(mi.Mtu), nil - } - ifi, err := net.InterfaceByIndex(int(mi.Addr.Scope_id)) - if err != nil { - return nil, 0, err - } - return ifi, int(mi.Mtu), nil -} - -func (so *sockOpt) setGroup(c *socket.Conn, ifi *net.Interface, grp net.IP) error { - switch so.typ { - case ssoTypeIPMreq: - return so.setIPMreq(c, ifi, grp) - case ssoTypeGroupReq: - return so.setGroupReq(c, ifi, grp) - default: - return errNotImplemented - } -} - -func (so *sockOpt) setSourceGroup(c *socket.Conn, ifi *net.Interface, grp, src net.IP) error { - return so.setGroupSourceReq(c, ifi, grp, src) -} - -func (so *sockOpt) setBPF(c *socket.Conn, f []bpf.RawInstruction) error { - return so.setAttachFilter(c, f) -} diff --git a/vendor/golang.org/x/net/ipv6/sockopt_stub.go b/vendor/golang.org/x/net/ipv6/sockopt_stub.go deleted file mode 100644 index a09c3aaf26..0000000000 --- a/vendor/golang.org/x/net/ipv6/sockopt_stub.go +++ /dev/null @@ -1,46 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !windows && !zos - -package ipv6 - -import ( - "net" - - "golang.org/x/net/bpf" - "golang.org/x/net/internal/socket" -) - -func (so *sockOpt) getMulticastInterface(c *socket.Conn) (*net.Interface, error) { - return nil, errNotImplemented -} - -func (so *sockOpt) setMulticastInterface(c *socket.Conn, ifi *net.Interface) error { - return errNotImplemented -} - -func (so *sockOpt) getICMPFilter(c *socket.Conn) (*ICMPFilter, error) { - return nil, errNotImplemented -} - -func (so *sockOpt) setICMPFilter(c *socket.Conn, f *ICMPFilter) error { - return errNotImplemented -} - -func (so *sockOpt) getMTUInfo(c *socket.Conn) (*net.Interface, int, error) { - return nil, 0, errNotImplemented -} - -func (so *sockOpt) setGroup(c *socket.Conn, ifi *net.Interface, grp net.IP) error { - return errNotImplemented -} - -func (so *sockOpt) setSourceGroup(c *socket.Conn, ifi *net.Interface, grp, src net.IP) error { - return errNotImplemented -} - -func (so *sockOpt) setBPF(c *socket.Conn, f []bpf.RawInstruction) error { - return errNotImplemented -} diff --git a/vendor/golang.org/x/net/ipv6/sys_aix.go b/vendor/golang.org/x/net/ipv6/sys_aix.go deleted file mode 100644 index 93c8efc468..0000000000 --- a/vendor/golang.org/x/net/ipv6/sys_aix.go +++ /dev/null @@ -1,79 +0,0 @@ -// Copyright 2019 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Added for go1.11 compatibility -//go:build aix - -package ipv6 - -import ( - "net" - "syscall" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -var ( - ctlOpts = [ctlMax]ctlOpt{ - ctlTrafficClass: {unix.IPV6_TCLASS, 4, marshalTrafficClass, parseTrafficClass}, - ctlHopLimit: {unix.IPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit}, - ctlPacketInfo: {unix.IPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo}, - ctlNextHop: {unix.IPV6_NEXTHOP, sizeofSockaddrInet6, marshalNextHop, parseNextHop}, - ctlPathMTU: {unix.IPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU}, - } - - sockOpts = map[int]*sockOpt{ - ssoTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_TCLASS, Len: 4}}, - ssoHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_UNICAST_HOPS, Len: 4}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_IF, Len: 4}}, - ssoMulticastHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_HOPS, Len: 4}}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_LOOP, Len: 4}}, - ssoReceiveTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVTCLASS, Len: 4}}, - ssoReceiveHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVHOPLIMIT, Len: 4}}, - ssoReceivePacketInfo: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPKTINFO, Len: 4}}, - ssoReceivePathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPATHMTU, Len: 4}}, - ssoPathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_PATHMTU, Len: sizeofIPv6Mtuinfo}}, - ssoChecksum: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_CHECKSUM, Len: 4}}, - ssoICMPFilter: {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: unix.ICMP6_FILTER, Len: sizeofICMPv6Filter}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_JOIN_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_LEAVE_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq}, - } -) - -func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) { - sa.Len = sizeofSockaddrInet6 - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], ip) - sa.Scope_id = uint32(i) -} - -func (pi *inet6Pktinfo) setIfindex(i int) { - pi.Ifindex = int32(i) -} - -func (mreq *ipv6Mreq) setIfindex(i int) { - mreq.Interface = uint32(i) -} - -func (gr *groupReq) setGroup(grp net.IP) { - sa := (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gr)) + 4)) - sa.Len = sizeofSockaddrInet6 - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], grp) -} - -func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) { - sa := (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 4)) - sa.Len = sizeofSockaddrInet6 - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], grp) - sa = (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 132)) - sa.Len = sizeofSockaddrInet6 - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], src) -} diff --git a/vendor/golang.org/x/net/ipv6/sys_asmreq.go b/vendor/golang.org/x/net/ipv6/sys_asmreq.go deleted file mode 100644 index 5c9cb44471..0000000000 --- a/vendor/golang.org/x/net/ipv6/sys_asmreq.go +++ /dev/null @@ -1,24 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || windows - -package ipv6 - -import ( - "net" - "unsafe" - - "golang.org/x/net/internal/socket" -) - -func (so *sockOpt) setIPMreq(c *socket.Conn, ifi *net.Interface, grp net.IP) error { - var mreq ipv6Mreq - copy(mreq.Multiaddr[:], grp) - if ifi != nil { - mreq.setIfindex(ifi.Index) - } - b := (*[sizeofIPv6Mreq]byte)(unsafe.Pointer(&mreq))[:sizeofIPv6Mreq] - return so.Set(c, b) -} diff --git a/vendor/golang.org/x/net/ipv6/sys_asmreq_stub.go b/vendor/golang.org/x/net/ipv6/sys_asmreq_stub.go deleted file mode 100644 index dc70494680..0000000000 --- a/vendor/golang.org/x/net/ipv6/sys_asmreq_stub.go +++ /dev/null @@ -1,17 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !windows - -package ipv6 - -import ( - "net" - - "golang.org/x/net/internal/socket" -) - -func (so *sockOpt) setIPMreq(c *socket.Conn, ifi *net.Interface, grp net.IP) error { - return errNotImplemented -} diff --git a/vendor/golang.org/x/net/ipv6/sys_bpf.go b/vendor/golang.org/x/net/ipv6/sys_bpf.go deleted file mode 100644 index e39f75f49f..0000000000 --- a/vendor/golang.org/x/net/ipv6/sys_bpf.go +++ /dev/null @@ -1,24 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build linux - -package ipv6 - -import ( - "unsafe" - - "golang.org/x/net/bpf" - "golang.org/x/net/internal/socket" - "golang.org/x/sys/unix" -) - -func (so *sockOpt) setAttachFilter(c *socket.Conn, f []bpf.RawInstruction) error { - prog := unix.SockFprog{ - Len: uint16(len(f)), - Filter: (*unix.SockFilter)(unsafe.Pointer(&f[0])), - } - b := (*[unix.SizeofSockFprog]byte)(unsafe.Pointer(&prog))[:unix.SizeofSockFprog] - return so.Set(c, b) -} diff --git a/vendor/golang.org/x/net/ipv6/sys_bpf_stub.go b/vendor/golang.org/x/net/ipv6/sys_bpf_stub.go deleted file mode 100644 index 8532a8f5de..0000000000 --- a/vendor/golang.org/x/net/ipv6/sys_bpf_stub.go +++ /dev/null @@ -1,16 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !linux - -package ipv6 - -import ( - "golang.org/x/net/bpf" - "golang.org/x/net/internal/socket" -) - -func (so *sockOpt) setAttachFilter(c *socket.Conn, f []bpf.RawInstruction) error { - return errNotImplemented -} diff --git a/vendor/golang.org/x/net/ipv6/sys_bsd.go b/vendor/golang.org/x/net/ipv6/sys_bsd.go deleted file mode 100644 index 9f3bc2afde..0000000000 --- a/vendor/golang.org/x/net/ipv6/sys_bsd.go +++ /dev/null @@ -1,59 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build dragonfly || netbsd || openbsd - -package ipv6 - -import ( - "net" - "syscall" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -var ( - ctlOpts = [ctlMax]ctlOpt{ - ctlTrafficClass: {unix.IPV6_TCLASS, 4, marshalTrafficClass, parseTrafficClass}, - ctlHopLimit: {unix.IPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit}, - ctlPacketInfo: {unix.IPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo}, - ctlNextHop: {unix.IPV6_NEXTHOP, sizeofSockaddrInet6, marshalNextHop, parseNextHop}, - ctlPathMTU: {unix.IPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU}, - } - - sockOpts = map[int]*sockOpt{ - ssoTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_TCLASS, Len: 4}}, - ssoHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_UNICAST_HOPS, Len: 4}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_IF, Len: 4}}, - ssoMulticastHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_HOPS, Len: 4}}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_LOOP, Len: 4}}, - ssoReceiveTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVTCLASS, Len: 4}}, - ssoReceiveHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVHOPLIMIT, Len: 4}}, - ssoReceivePacketInfo: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPKTINFO, Len: 4}}, - ssoReceivePathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPATHMTU, Len: 4}}, - ssoPathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_PATHMTU, Len: sizeofIPv6Mtuinfo}}, - ssoChecksum: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_CHECKSUM, Len: 4}}, - ssoICMPFilter: {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: unix.ICMP6_FILTER, Len: sizeofICMPv6Filter}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_JOIN_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_LEAVE_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq}, - } -) - -func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) { - sa.Len = sizeofSockaddrInet6 - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], ip) - sa.Scope_id = uint32(i) -} - -func (pi *inet6Pktinfo) setIfindex(i int) { - pi.Ifindex = uint32(i) -} - -func (mreq *ipv6Mreq) setIfindex(i int) { - mreq.Interface = uint32(i) -} diff --git a/vendor/golang.org/x/net/ipv6/sys_darwin.go b/vendor/golang.org/x/net/ipv6/sys_darwin.go deleted file mode 100644 index b80ec8064a..0000000000 --- a/vendor/golang.org/x/net/ipv6/sys_darwin.go +++ /dev/null @@ -1,80 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import ( - "net" - "syscall" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -var ( - ctlOpts = [ctlMax]ctlOpt{ - ctlTrafficClass: {unix.IPV6_TCLASS, 4, marshalTrafficClass, parseTrafficClass}, - ctlHopLimit: {unix.IPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit}, - ctlPacketInfo: {unix.IPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo}, - ctlNextHop: {unix.IPV6_NEXTHOP, sizeofSockaddrInet6, marshalNextHop, parseNextHop}, - ctlPathMTU: {unix.IPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU}, - } - - sockOpts = map[int]*sockOpt{ - ssoHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_UNICAST_HOPS, Len: 4}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_IF, Len: 4}}, - ssoMulticastHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_HOPS, Len: 4}}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_LOOP, Len: 4}}, - ssoTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_TCLASS, Len: 4}}, - ssoReceiveTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVTCLASS, Len: 4}}, - ssoReceiveHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVHOPLIMIT, Len: 4}}, - ssoReceivePacketInfo: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPKTINFO, Len: 4}}, - ssoReceivePathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPATHMTU, Len: 4}}, - ssoPathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_PATHMTU, Len: sizeofIPv6Mtuinfo}}, - ssoChecksum: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_CHECKSUM, Len: 4}}, - ssoICMPFilter: {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: unix.ICMP6_FILTER, Len: sizeofICMPv6Filter}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoJoinSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoLeaveSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoBlockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - } -) - -func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) { - sa.Len = sizeofSockaddrInet6 - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], ip) - sa.Scope_id = uint32(i) -} - -func (pi *inet6Pktinfo) setIfindex(i int) { - pi.Ifindex = uint32(i) -} - -func (mreq *ipv6Mreq) setIfindex(i int) { - mreq.Interface = uint32(i) -} - -func (gr *groupReq) setGroup(grp net.IP) { - sa := (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gr)) + 4)) - sa.Len = sizeofSockaddrInet6 - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], grp) -} - -func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) { - sa := (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 4)) - sa.Len = sizeofSockaddrInet6 - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], grp) - sa = (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 132)) - sa.Len = sizeofSockaddrInet6 - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], src) -} diff --git a/vendor/golang.org/x/net/ipv6/sys_freebsd.go b/vendor/golang.org/x/net/ipv6/sys_freebsd.go deleted file mode 100644 index 6282cf9770..0000000000 --- a/vendor/golang.org/x/net/ipv6/sys_freebsd.go +++ /dev/null @@ -1,94 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import ( - "net" - "runtime" - "strings" - "syscall" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -var ( - ctlOpts = [ctlMax]ctlOpt{ - ctlTrafficClass: {unix.IPV6_TCLASS, 4, marshalTrafficClass, parseTrafficClass}, - ctlHopLimit: {unix.IPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit}, - ctlPacketInfo: {unix.IPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo}, - ctlNextHop: {unix.IPV6_NEXTHOP, sizeofSockaddrInet6, marshalNextHop, parseNextHop}, - ctlPathMTU: {unix.IPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU}, - } - - sockOpts = map[int]sockOpt{ - ssoTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_TCLASS, Len: 4}}, - ssoHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_UNICAST_HOPS, Len: 4}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_IF, Len: 4}}, - ssoMulticastHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_HOPS, Len: 4}}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_LOOP, Len: 4}}, - ssoReceiveTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVTCLASS, Len: 4}}, - ssoReceiveHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVHOPLIMIT, Len: 4}}, - ssoReceivePacketInfo: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPKTINFO, Len: 4}}, - ssoReceivePathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPATHMTU, Len: 4}}, - ssoPathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_PATHMTU, Len: sizeofIPv6Mtuinfo}}, - ssoChecksum: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_CHECKSUM, Len: 4}}, - ssoICMPFilter: {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: unix.ICMP6_FILTER, Len: sizeofICMPv6Filter}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoJoinSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoLeaveSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoBlockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - } -) - -func init() { - if runtime.GOOS == "freebsd" && runtime.GOARCH == "386" { - archs, _ := syscall.Sysctl("kern.supported_archs") - for _, s := range strings.Fields(archs) { - if s == "amd64" { - compatFreeBSD32 = true - break - } - } - } -} - -func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) { - sa.Len = sizeofSockaddrInet6 - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], ip) - sa.Scope_id = uint32(i) -} - -func (pi *inet6Pktinfo) setIfindex(i int) { - pi.Ifindex = uint32(i) -} - -func (mreq *ipv6Mreq) setIfindex(i int) { - mreq.Interface = uint32(i) -} - -func (gr *groupReq) setGroup(grp net.IP) { - sa := (*sockaddrInet6)(unsafe.Pointer(&gr.Group)) - sa.Len = sizeofSockaddrInet6 - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], grp) -} - -func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) { - sa := (*sockaddrInet6)(unsafe.Pointer(&gsr.Group)) - sa.Len = sizeofSockaddrInet6 - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], grp) - sa = (*sockaddrInet6)(unsafe.Pointer(&gsr.Source)) - sa.Len = sizeofSockaddrInet6 - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], src) -} diff --git a/vendor/golang.org/x/net/ipv6/sys_linux.go b/vendor/golang.org/x/net/ipv6/sys_linux.go deleted file mode 100644 index 82e2121000..0000000000 --- a/vendor/golang.org/x/net/ipv6/sys_linux.go +++ /dev/null @@ -1,76 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import ( - "net" - "syscall" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -var ( - ctlOpts = [ctlMax]ctlOpt{ - ctlTrafficClass: {unix.IPV6_TCLASS, 4, marshalTrafficClass, parseTrafficClass}, - ctlHopLimit: {unix.IPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit}, - ctlPacketInfo: {unix.IPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo}, - ctlPathMTU: {unix.IPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU}, - } - - sockOpts = map[int]*sockOpt{ - ssoTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_TCLASS, Len: 4}}, - ssoHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_UNICAST_HOPS, Len: 4}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_IF, Len: 4}}, - ssoMulticastHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_HOPS, Len: 4}}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_LOOP, Len: 4}}, - ssoReceiveTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVTCLASS, Len: 4}}, - ssoReceiveHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVHOPLIMIT, Len: 4}}, - ssoReceivePacketInfo: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPKTINFO, Len: 4}}, - ssoReceivePathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPATHMTU, Len: 4}}, - ssoPathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_PATHMTU, Len: sizeofIPv6Mtuinfo}}, - ssoChecksum: {Option: socket.Option{Level: iana.ProtocolReserved, Name: unix.IPV6_CHECKSUM, Len: 4}}, - ssoICMPFilter: {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: unix.ICMPV6_FILTER, Len: sizeofICMPv6Filter}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoJoinSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoLeaveSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoBlockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoAttachFilter: {Option: socket.Option{Level: unix.SOL_SOCKET, Name: unix.SO_ATTACH_FILTER, Len: unix.SizeofSockFprog}}, - } -) - -func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) { - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], ip) - sa.Scope_id = uint32(i) -} - -func (pi *inet6Pktinfo) setIfindex(i int) { - pi.Ifindex = int32(i) -} - -func (mreq *ipv6Mreq) setIfindex(i int) { - mreq.Ifindex = int32(i) -} - -func (gr *groupReq) setGroup(grp net.IP) { - sa := (*sockaddrInet6)(unsafe.Pointer(&gr.Group)) - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], grp) -} - -func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) { - sa := (*sockaddrInet6)(unsafe.Pointer(&gsr.Group)) - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], grp) - sa = (*sockaddrInet6)(unsafe.Pointer(&gsr.Source)) - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], src) -} diff --git a/vendor/golang.org/x/net/ipv6/sys_solaris.go b/vendor/golang.org/x/net/ipv6/sys_solaris.go deleted file mode 100644 index 1fc30add4d..0000000000 --- a/vendor/golang.org/x/net/ipv6/sys_solaris.go +++ /dev/null @@ -1,76 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import ( - "net" - "syscall" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -var ( - ctlOpts = [ctlMax]ctlOpt{ - ctlTrafficClass: {unix.IPV6_TCLASS, 4, marshalTrafficClass, parseTrafficClass}, - ctlHopLimit: {unix.IPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit}, - ctlPacketInfo: {unix.IPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo}, - ctlNextHop: {unix.IPV6_NEXTHOP, sizeofSockaddrInet6, marshalNextHop, parseNextHop}, - ctlPathMTU: {unix.IPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU}, - } - - sockOpts = map[int]*sockOpt{ - ssoTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_TCLASS, Len: 4}}, - ssoHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_UNICAST_HOPS, Len: 4}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_IF, Len: 4}}, - ssoMulticastHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_HOPS, Len: 4}}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_LOOP, Len: 4}}, - ssoReceiveTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVTCLASS, Len: 4}}, - ssoReceiveHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVHOPLIMIT, Len: 4}}, - ssoReceivePacketInfo: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPKTINFO, Len: 4}}, - ssoReceivePathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPATHMTU, Len: 4}}, - ssoPathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_PATHMTU, Len: sizeofIPv6Mtuinfo}}, - ssoChecksum: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_CHECKSUM, Len: 4}}, - ssoICMPFilter: {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: unix.ICMP6_FILTER, Len: sizeofICMPv6Filter}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoJoinSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoLeaveSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoBlockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - } -) - -func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) { - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], ip) - sa.Scope_id = uint32(i) -} - -func (pi *inet6Pktinfo) setIfindex(i int) { - pi.Ifindex = uint32(i) -} - -func (mreq *ipv6Mreq) setIfindex(i int) { - mreq.Interface = uint32(i) -} - -func (gr *groupReq) setGroup(grp net.IP) { - sa := (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gr)) + 4)) - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], grp) -} - -func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) { - sa := (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 4)) - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], grp) - sa = (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 260)) - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], src) -} diff --git a/vendor/golang.org/x/net/ipv6/sys_ssmreq.go b/vendor/golang.org/x/net/ipv6/sys_ssmreq.go deleted file mode 100644 index b40f5c685b..0000000000 --- a/vendor/golang.org/x/net/ipv6/sys_ssmreq.go +++ /dev/null @@ -1,54 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build aix || darwin || freebsd || linux || solaris || zos - -package ipv6 - -import ( - "net" - "unsafe" - - "golang.org/x/net/internal/socket" -) - -var compatFreeBSD32 bool // 386 emulation on amd64 - -func (so *sockOpt) setGroupReq(c *socket.Conn, ifi *net.Interface, grp net.IP) error { - var gr groupReq - if ifi != nil { - gr.Interface = uint32(ifi.Index) - } - gr.setGroup(grp) - var b []byte - if compatFreeBSD32 { - var d [sizeofGroupReq + 4]byte - s := (*[sizeofGroupReq]byte)(unsafe.Pointer(&gr)) - copy(d[:4], s[:4]) - copy(d[8:], s[4:]) - b = d[:] - } else { - b = (*[sizeofGroupReq]byte)(unsafe.Pointer(&gr))[:sizeofGroupReq] - } - return so.Set(c, b) -} - -func (so *sockOpt) setGroupSourceReq(c *socket.Conn, ifi *net.Interface, grp, src net.IP) error { - var gsr groupSourceReq - if ifi != nil { - gsr.Interface = uint32(ifi.Index) - } - gsr.setSourceGroup(grp, src) - var b []byte - if compatFreeBSD32 { - var d [sizeofGroupSourceReq + 4]byte - s := (*[sizeofGroupSourceReq]byte)(unsafe.Pointer(&gsr)) - copy(d[:4], s[:4]) - copy(d[8:], s[4:]) - b = d[:] - } else { - b = (*[sizeofGroupSourceReq]byte)(unsafe.Pointer(&gsr))[:sizeofGroupSourceReq] - } - return so.Set(c, b) -} diff --git a/vendor/golang.org/x/net/ipv6/sys_ssmreq_stub.go b/vendor/golang.org/x/net/ipv6/sys_ssmreq_stub.go deleted file mode 100644 index 6526aad581..0000000000 --- a/vendor/golang.org/x/net/ipv6/sys_ssmreq_stub.go +++ /dev/null @@ -1,21 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !freebsd && !linux && !solaris && !zos - -package ipv6 - -import ( - "net" - - "golang.org/x/net/internal/socket" -) - -func (so *sockOpt) setGroupReq(c *socket.Conn, ifi *net.Interface, grp net.IP) error { - return errNotImplemented -} - -func (so *sockOpt) setGroupSourceReq(c *socket.Conn, ifi *net.Interface, grp, src net.IP) error { - return errNotImplemented -} diff --git a/vendor/golang.org/x/net/ipv6/sys_stub.go b/vendor/golang.org/x/net/ipv6/sys_stub.go deleted file mode 100644 index 76602c34e6..0000000000 --- a/vendor/golang.org/x/net/ipv6/sys_stub.go +++ /dev/null @@ -1,13 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !aix && !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris && !windows && !zos - -package ipv6 - -var ( - ctlOpts = [ctlMax]ctlOpt{} - - sockOpts = map[int]*sockOpt{} -) diff --git a/vendor/golang.org/x/net/ipv6/sys_windows.go b/vendor/golang.org/x/net/ipv6/sys_windows.go deleted file mode 100644 index fda8a29949..0000000000 --- a/vendor/golang.org/x/net/ipv6/sys_windows.go +++ /dev/null @@ -1,68 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import ( - "net" - "syscall" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/windows" -) - -const ( - sizeofSockaddrInet6 = 0x1c - - sizeofIPv6Mreq = 0x14 - sizeofIPv6Mtuinfo = 0x20 - sizeofICMPv6Filter = 0 -) - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Interface uint32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type icmpv6Filter struct { - // TODO(mikio): implement this -} - -var ( - ctlOpts = [ctlMax]ctlOpt{} - - sockOpts = map[int]*sockOpt{ - ssoHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: windows.IPV6_UNICAST_HOPS, Len: 4}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: windows.IPV6_MULTICAST_IF, Len: 4}}, - ssoMulticastHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: windows.IPV6_MULTICAST_HOPS, Len: 4}}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: windows.IPV6_MULTICAST_LOOP, Len: 4}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: windows.IPV6_JOIN_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: windows.IPV6_LEAVE_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq}, - } -) - -func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) { - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], ip) - sa.Scope_id = uint32(i) -} - -func (mreq *ipv6Mreq) setIfindex(i int) { - mreq.Interface = uint32(i) -} diff --git a/vendor/golang.org/x/net/ipv6/sys_zos.go b/vendor/golang.org/x/net/ipv6/sys_zos.go deleted file mode 100644 index 31adc86655..0000000000 --- a/vendor/golang.org/x/net/ipv6/sys_zos.go +++ /dev/null @@ -1,72 +0,0 @@ -// Copyright 2020 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ipv6 - -import ( - "net" - "syscall" - "unsafe" - - "golang.org/x/net/internal/iana" - "golang.org/x/net/internal/socket" - - "golang.org/x/sys/unix" -) - -var ( - ctlOpts = [ctlMax]ctlOpt{ - ctlHopLimit: {unix.IPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit}, - ctlPacketInfo: {unix.IPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo}, - ctlPathMTU: {unix.IPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU}, - } - - sockOpts = map[int]*sockOpt{ - ssoTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_TCLASS, Len: 4}}, - ssoHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_UNICAST_HOPS, Len: 4}}, - ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_IF, Len: 4}}, - ssoMulticastHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_HOPS, Len: 4}}, - ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_LOOP, Len: 4}}, - ssoReceiveTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVTCLASS, Len: 4}}, - ssoReceiveHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVHOPLIMIT, Len: 4}}, - ssoReceivePacketInfo: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPKTINFO, Len: 4}}, - ssoReceivePathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPATHMTU, Len: 4}}, - ssoChecksum: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_CHECKSUM, Len: 4}}, - ssoICMPFilter: {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: unix.ICMP6_FILTER, Len: sizeofICMPv6Filter}}, - ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, - ssoJoinSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoLeaveSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoBlockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, - } -) - -func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) { - sa.Family = syscall.AF_INET6 - copy(sa.Addr[:], ip) - sa.Scope_id = uint32(i) -} - -func (pi *inet6Pktinfo) setIfindex(i int) { - pi.Ifindex = uint32(i) -} - -func (gr *groupReq) setGroup(grp net.IP) { - sa := (*sockaddrInet6)(unsafe.Pointer(&gr.Group)) - sa.Family = syscall.AF_INET6 - sa.Len = sizeofSockaddrInet6 - copy(sa.Addr[:], grp) -} - -func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) { - sa := (*sockaddrInet6)(unsafe.Pointer(&gsr.Group)) - sa.Family = syscall.AF_INET6 - sa.Len = sizeofSockaddrInet6 - copy(sa.Addr[:], grp) - sa = (*sockaddrInet6)(unsafe.Pointer(&gsr.Source)) - sa.Family = syscall.AF_INET6 - sa.Len = sizeofSockaddrInet6 - copy(sa.Addr[:], src) -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_aix_ppc64.go b/vendor/golang.org/x/net/ipv6/zsys_aix_ppc64.go deleted file mode 100644 index 668716df4d..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_aix_ppc64.go +++ /dev/null @@ -1,68 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_aix.go - -// Added for go1.11 compatibility -//go:build aix - -package ipv6 - -const ( - sizeofSockaddrStorage = 0x508 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x510 - sizeofGroupSourceReq = 0xa18 - - sizeofICMPv6Filter = 0x20 -) - -type sockaddrStorage struct { - X__ss_len uint8 - Family uint8 - X__ss_pad1 [6]uint8 - X__ss_align int64 - X__ss_pad2 [1265]uint8 - Pad_cgo_0 [7]byte -} - -type sockaddrInet6 struct { - Len uint8 - Family uint8 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex int32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Interface uint32 -} - -type icmpv6Filter struct { - Filt [8]uint32 -} - -type groupReq struct { - Interface uint32 - Group sockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group sockaddrStorage - Source sockaddrStorage -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_darwin.go b/vendor/golang.org/x/net/ipv6/zsys_darwin.go deleted file mode 100644 index dd6f7b28ec..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_darwin.go +++ /dev/null @@ -1,64 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_darwin.go - -package ipv6 - -const ( - sizeofSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x84 - sizeofGroupSourceReq = 0x104 - - sizeofICMPv6Filter = 0x20 -) - -type sockaddrStorage struct { - Len uint8 - Family uint8 - X__ss_pad1 [6]int8 - X__ss_align int64 - X__ss_pad2 [112]int8 -} - -type sockaddrInet6 struct { - Len uint8 - Family uint8 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex uint32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Interface uint32 -} - -type icmpv6Filter struct { - Filt [8]uint32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [128]byte -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [128]byte - Pad_cgo_1 [128]byte -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_dragonfly.go b/vendor/golang.org/x/net/ipv6/zsys_dragonfly.go deleted file mode 100644 index 6b45a94fe1..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_dragonfly.go +++ /dev/null @@ -1,42 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_dragonfly.go - -package ipv6 - -const ( - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - - sizeofIPv6Mreq = 0x14 - - sizeofICMPv6Filter = 0x20 -) - -type sockaddrInet6 struct { - Len uint8 - Family uint8 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex uint32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Interface uint32 -} - -type icmpv6Filter struct { - Filt [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_freebsd_386.go b/vendor/golang.org/x/net/ipv6/zsys_freebsd_386.go deleted file mode 100644 index 8da55925f7..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_freebsd_386.go +++ /dev/null @@ -1,64 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_freebsd.go - -package ipv6 - -const ( - sizeofSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x84 - sizeofGroupSourceReq = 0x104 - - sizeofICMPv6Filter = 0x20 -) - -type sockaddrStorage struct { - Len uint8 - Family uint8 - X__ss_pad1 [6]int8 - X__ss_align int64 - X__ss_pad2 [112]int8 -} - -type sockaddrInet6 struct { - Len uint8 - Family uint8 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex uint32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Interface uint32 -} - -type groupReq struct { - Interface uint32 - Group sockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group sockaddrStorage - Source sockaddrStorage -} - -type icmpv6Filter struct { - Filt [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_freebsd_amd64.go b/vendor/golang.org/x/net/ipv6/zsys_freebsd_amd64.go deleted file mode 100644 index 72a1a65a23..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_freebsd_amd64.go +++ /dev/null @@ -1,66 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_freebsd.go - -package ipv6 - -const ( - sizeofSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPv6Filter = 0x20 -) - -type sockaddrStorage struct { - Len uint8 - Family uint8 - X__ss_pad1 [6]int8 - X__ss_align int64 - X__ss_pad2 [112]int8 -} - -type sockaddrInet6 struct { - Len uint8 - Family uint8 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex uint32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Interface uint32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group sockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group sockaddrStorage - Source sockaddrStorage -} - -type icmpv6Filter struct { - Filt [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_freebsd_arm.go b/vendor/golang.org/x/net/ipv6/zsys_freebsd_arm.go deleted file mode 100644 index 72a1a65a23..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_freebsd_arm.go +++ /dev/null @@ -1,66 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_freebsd.go - -package ipv6 - -const ( - sizeofSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPv6Filter = 0x20 -) - -type sockaddrStorage struct { - Len uint8 - Family uint8 - X__ss_pad1 [6]int8 - X__ss_align int64 - X__ss_pad2 [112]int8 -} - -type sockaddrInet6 struct { - Len uint8 - Family uint8 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex uint32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Interface uint32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group sockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group sockaddrStorage - Source sockaddrStorage -} - -type icmpv6Filter struct { - Filt [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_freebsd_arm64.go b/vendor/golang.org/x/net/ipv6/zsys_freebsd_arm64.go deleted file mode 100644 index 5b39eb8dfd..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_freebsd_arm64.go +++ /dev/null @@ -1,64 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_freebsd.go - -package ipv6 - -const ( - sizeofSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPv6Filter = 0x20 -) - -type sockaddrStorage struct { - Len uint8 - Family uint8 - X__ss_pad1 [6]uint8 - X__ss_align int64 - X__ss_pad2 [112]uint8 -} - -type sockaddrInet6 struct { - Len uint8 - Family uint8 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex uint32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Interface uint32 -} - -type groupReq struct { - Interface uint32 - Group sockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group sockaddrStorage - Source sockaddrStorage -} - -type icmpv6Filter struct { - Filt [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_freebsd_riscv64.go b/vendor/golang.org/x/net/ipv6/zsys_freebsd_riscv64.go deleted file mode 100644 index 5b39eb8dfd..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_freebsd_riscv64.go +++ /dev/null @@ -1,64 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_freebsd.go - -package ipv6 - -const ( - sizeofSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPv6Filter = 0x20 -) - -type sockaddrStorage struct { - Len uint8 - Family uint8 - X__ss_pad1 [6]uint8 - X__ss_align int64 - X__ss_pad2 [112]uint8 -} - -type sockaddrInet6 struct { - Len uint8 - Family uint8 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex uint32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Interface uint32 -} - -type groupReq struct { - Interface uint32 - Group sockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group sockaddrStorage - Source sockaddrStorage -} - -type icmpv6Filter struct { - Filt [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_386.go b/vendor/golang.org/x/net/ipv6/zsys_linux_386.go deleted file mode 100644 index ad71871b78..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_linux_386.go +++ /dev/null @@ -1,72 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv6 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - sizeofIPv6FlowlabelReq = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x84 - sizeofGroupSourceReq = 0x104 - - sizeofICMPv6Filter = 0x20 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex int32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6FlowlabelReq struct { - Dst [16]byte /* in6_addr */ - Label uint32 - Action uint8 - Share uint8 - Flags uint16 - Expires uint16 - Linger uint16 - X__flr_pad uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Ifindex int32 -} - -type groupReq struct { - Interface uint32 - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpv6Filter struct { - Data [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_amd64.go b/vendor/golang.org/x/net/ipv6/zsys_linux_amd64.go deleted file mode 100644 index 2514ab9a41..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_linux_amd64.go +++ /dev/null @@ -1,74 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv6 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - sizeofIPv6FlowlabelReq = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPv6Filter = 0x20 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex int32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6FlowlabelReq struct { - Dst [16]byte /* in6_addr */ - Label uint32 - Action uint8 - Share uint8 - Flags uint16 - Expires uint16 - Linger uint16 - X__flr_pad uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Ifindex int32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpv6Filter struct { - Data [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_arm.go b/vendor/golang.org/x/net/ipv6/zsys_linux_arm.go deleted file mode 100644 index ad71871b78..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_linux_arm.go +++ /dev/null @@ -1,72 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv6 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - sizeofIPv6FlowlabelReq = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x84 - sizeofGroupSourceReq = 0x104 - - sizeofICMPv6Filter = 0x20 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex int32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6FlowlabelReq struct { - Dst [16]byte /* in6_addr */ - Label uint32 - Action uint8 - Share uint8 - Flags uint16 - Expires uint16 - Linger uint16 - X__flr_pad uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Ifindex int32 -} - -type groupReq struct { - Interface uint32 - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpv6Filter struct { - Data [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_arm64.go b/vendor/golang.org/x/net/ipv6/zsys_linux_arm64.go deleted file mode 100644 index 2514ab9a41..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_linux_arm64.go +++ /dev/null @@ -1,74 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv6 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - sizeofIPv6FlowlabelReq = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPv6Filter = 0x20 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex int32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6FlowlabelReq struct { - Dst [16]byte /* in6_addr */ - Label uint32 - Action uint8 - Share uint8 - Flags uint16 - Expires uint16 - Linger uint16 - X__flr_pad uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Ifindex int32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpv6Filter struct { - Data [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_loong64.go b/vendor/golang.org/x/net/ipv6/zsys_linux_loong64.go deleted file mode 100644 index 6a53284dbe..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_linux_loong64.go +++ /dev/null @@ -1,76 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -//go:build loong64 - -package ipv6 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - sizeofIPv6FlowlabelReq = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPv6Filter = 0x20 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex int32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6FlowlabelReq struct { - Dst [16]byte /* in6_addr */ - Label uint32 - Action uint8 - Share uint8 - Flags uint16 - Expires uint16 - Linger uint16 - X__flr_pad uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Ifindex int32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpv6Filter struct { - Data [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_mips.go b/vendor/golang.org/x/net/ipv6/zsys_linux_mips.go deleted file mode 100644 index ad71871b78..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_linux_mips.go +++ /dev/null @@ -1,72 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv6 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - sizeofIPv6FlowlabelReq = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x84 - sizeofGroupSourceReq = 0x104 - - sizeofICMPv6Filter = 0x20 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex int32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6FlowlabelReq struct { - Dst [16]byte /* in6_addr */ - Label uint32 - Action uint8 - Share uint8 - Flags uint16 - Expires uint16 - Linger uint16 - X__flr_pad uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Ifindex int32 -} - -type groupReq struct { - Interface uint32 - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpv6Filter struct { - Data [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_mips64.go b/vendor/golang.org/x/net/ipv6/zsys_linux_mips64.go deleted file mode 100644 index 2514ab9a41..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_linux_mips64.go +++ /dev/null @@ -1,74 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv6 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - sizeofIPv6FlowlabelReq = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPv6Filter = 0x20 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex int32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6FlowlabelReq struct { - Dst [16]byte /* in6_addr */ - Label uint32 - Action uint8 - Share uint8 - Flags uint16 - Expires uint16 - Linger uint16 - X__flr_pad uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Ifindex int32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpv6Filter struct { - Data [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_mips64le.go b/vendor/golang.org/x/net/ipv6/zsys_linux_mips64le.go deleted file mode 100644 index 2514ab9a41..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_linux_mips64le.go +++ /dev/null @@ -1,74 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv6 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - sizeofIPv6FlowlabelReq = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPv6Filter = 0x20 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex int32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6FlowlabelReq struct { - Dst [16]byte /* in6_addr */ - Label uint32 - Action uint8 - Share uint8 - Flags uint16 - Expires uint16 - Linger uint16 - X__flr_pad uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Ifindex int32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpv6Filter struct { - Data [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_mipsle.go b/vendor/golang.org/x/net/ipv6/zsys_linux_mipsle.go deleted file mode 100644 index ad71871b78..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_linux_mipsle.go +++ /dev/null @@ -1,72 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv6 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - sizeofIPv6FlowlabelReq = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x84 - sizeofGroupSourceReq = 0x104 - - sizeofICMPv6Filter = 0x20 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex int32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6FlowlabelReq struct { - Dst [16]byte /* in6_addr */ - Label uint32 - Action uint8 - Share uint8 - Flags uint16 - Expires uint16 - Linger uint16 - X__flr_pad uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Ifindex int32 -} - -type groupReq struct { - Interface uint32 - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpv6Filter struct { - Data [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_ppc.go b/vendor/golang.org/x/net/ipv6/zsys_linux_ppc.go deleted file mode 100644 index d06c2adecb..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_linux_ppc.go +++ /dev/null @@ -1,72 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv6 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - sizeofIPv6FlowlabelReq = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x84 - sizeofGroupSourceReq = 0x104 - - sizeofICMPv6Filter = 0x20 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]uint8 -} - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex int32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6FlowlabelReq struct { - Dst [16]byte /* in6_addr */ - Label uint32 - Action uint8 - Share uint8 - Flags uint16 - Expires uint16 - Linger uint16 - X__flr_pad uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Ifindex int32 -} - -type groupReq struct { - Interface uint32 - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpv6Filter struct { - Data [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_ppc64.go b/vendor/golang.org/x/net/ipv6/zsys_linux_ppc64.go deleted file mode 100644 index 2514ab9a41..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_linux_ppc64.go +++ /dev/null @@ -1,74 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv6 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - sizeofIPv6FlowlabelReq = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPv6Filter = 0x20 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex int32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6FlowlabelReq struct { - Dst [16]byte /* in6_addr */ - Label uint32 - Action uint8 - Share uint8 - Flags uint16 - Expires uint16 - Linger uint16 - X__flr_pad uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Ifindex int32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpv6Filter struct { - Data [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_ppc64le.go b/vendor/golang.org/x/net/ipv6/zsys_linux_ppc64le.go deleted file mode 100644 index 2514ab9a41..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_linux_ppc64le.go +++ /dev/null @@ -1,74 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv6 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - sizeofIPv6FlowlabelReq = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPv6Filter = 0x20 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex int32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6FlowlabelReq struct { - Dst [16]byte /* in6_addr */ - Label uint32 - Action uint8 - Share uint8 - Flags uint16 - Expires uint16 - Linger uint16 - X__flr_pad uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Ifindex int32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpv6Filter struct { - Data [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_riscv64.go b/vendor/golang.org/x/net/ipv6/zsys_linux_riscv64.go deleted file mode 100644 index 13b3472057..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_linux_riscv64.go +++ /dev/null @@ -1,76 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -//go:build riscv64 - -package ipv6 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - sizeofIPv6FlowlabelReq = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPv6Filter = 0x20 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex int32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6FlowlabelReq struct { - Dst [16]byte /* in6_addr */ - Label uint32 - Action uint8 - Share uint8 - Flags uint16 - Expires uint16 - Linger uint16 - X__flr_pad uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Ifindex int32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpv6Filter struct { - Data [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_linux_s390x.go b/vendor/golang.org/x/net/ipv6/zsys_linux_s390x.go deleted file mode 100644 index 2514ab9a41..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_linux_s390x.go +++ /dev/null @@ -1,74 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_linux.go - -package ipv6 - -const ( - sizeofKernelSockaddrStorage = 0x80 - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - sizeofIPv6FlowlabelReq = 0x20 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x88 - sizeofGroupSourceReq = 0x108 - - sizeofICMPv6Filter = 0x20 -) - -type kernelSockaddrStorage struct { - Family uint16 - X__data [126]int8 -} - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex int32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6FlowlabelReq struct { - Dst [16]byte /* in6_addr */ - Label uint32 - Action uint8 - Share uint8 - Flags uint16 - Expires uint16 - Linger uint16 - X__flr_pad uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Ifindex int32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [4]byte - Group kernelSockaddrStorage - Source kernelSockaddrStorage -} - -type icmpv6Filter struct { - Data [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_netbsd.go b/vendor/golang.org/x/net/ipv6/zsys_netbsd.go deleted file mode 100644 index f7335d5ae4..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_netbsd.go +++ /dev/null @@ -1,42 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_netbsd.go - -package ipv6 - -const ( - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - - sizeofIPv6Mreq = 0x14 - - sizeofICMPv6Filter = 0x20 -) - -type sockaddrInet6 struct { - Len uint8 - Family uint8 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex uint32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Interface uint32 -} - -type icmpv6Filter struct { - Filt [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_openbsd.go b/vendor/golang.org/x/net/ipv6/zsys_openbsd.go deleted file mode 100644 index 6d15928122..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_openbsd.go +++ /dev/null @@ -1,42 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_openbsd.go - -package ipv6 - -const ( - sizeofSockaddrInet6 = 0x1c - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x20 - - sizeofIPv6Mreq = 0x14 - - sizeofICMPv6Filter = 0x20 -) - -type sockaddrInet6 struct { - Len uint8 - Family uint8 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex uint32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Interface uint32 -} - -type icmpv6Filter struct { - Filt [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_solaris.go b/vendor/golang.org/x/net/ipv6/zsys_solaris.go deleted file mode 100644 index 1716197477..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_solaris.go +++ /dev/null @@ -1,63 +0,0 @@ -// Code generated by cmd/cgo -godefs; DO NOT EDIT. -// cgo -godefs defs_solaris.go - -package ipv6 - -const ( - sizeofSockaddrStorage = 0x100 - sizeofSockaddrInet6 = 0x20 - sizeofInet6Pktinfo = 0x14 - sizeofIPv6Mtuinfo = 0x24 - - sizeofIPv6Mreq = 0x14 - sizeofGroupReq = 0x104 - sizeofGroupSourceReq = 0x204 - - sizeofICMPv6Filter = 0x20 -) - -type sockaddrStorage struct { - Family uint16 - X_ss_pad1 [6]int8 - X_ss_align float64 - X_ss_pad2 [240]int8 -} - -type sockaddrInet6 struct { - Family uint16 - Port uint16 - Flowinfo uint32 - Addr [16]byte /* in6_addr */ - Scope_id uint32 - X__sin6_src_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte /* in6_addr */ - Ifindex uint32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type ipv6Mreq struct { - Multiaddr [16]byte /* in6_addr */ - Interface uint32 -} - -type groupReq struct { - Interface uint32 - Pad_cgo_0 [256]byte -} - -type groupSourceReq struct { - Interface uint32 - Pad_cgo_0 [256]byte - Pad_cgo_1 [256]byte -} - -type icmpv6Filter struct { - X__icmp6_filt [8]uint32 -} diff --git a/vendor/golang.org/x/net/ipv6/zsys_zos_s390x.go b/vendor/golang.org/x/net/ipv6/zsys_zos_s390x.go deleted file mode 100644 index 7c75645967..0000000000 --- a/vendor/golang.org/x/net/ipv6/zsys_zos_s390x.go +++ /dev/null @@ -1,62 +0,0 @@ -// Copyright 2020 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Hand edited based on zerrors_zos_s390x.go -// TODO(Bill O'Farrell): auto-generate. - -package ipv6 - -const ( - sizeofSockaddrStorage = 128 - sizeofICMPv6Filter = 32 - sizeofInet6Pktinfo = 20 - sizeofIPv6Mtuinfo = 32 - sizeofSockaddrInet6 = 28 - sizeofGroupReq = 136 - sizeofGroupSourceReq = 264 -) - -type sockaddrStorage struct { - Len uint8 - Family byte - ss_pad1 [6]byte - ss_align int64 - ss_pad2 [112]byte -} - -type sockaddrInet6 struct { - Len uint8 - Family uint8 - Port uint16 - Flowinfo uint32 - Addr [16]byte - Scope_id uint32 -} - -type inet6Pktinfo struct { - Addr [16]byte - Ifindex uint32 -} - -type ipv6Mtuinfo struct { - Addr sockaddrInet6 - Mtu uint32 -} - -type groupReq struct { - Interface uint32 - reserved uint32 - Group sockaddrStorage -} - -type groupSourceReq struct { - Interface uint32 - reserved uint32 - Group sockaddrStorage - Source sockaddrStorage -} - -type icmpv6Filter struct { - Filt [8]uint32 -} diff --git a/vendor/gvisor.dev/gvisor/AUTHORS b/vendor/gvisor.dev/gvisor/AUTHORS deleted file mode 100644 index 01ba465676..0000000000 --- a/vendor/gvisor.dev/gvisor/AUTHORS +++ /dev/null @@ -1,8 +0,0 @@ -# This is the list of gVisor authors for copyright purposes. -# -# This does not necessarily list everyone who has contributed code, since in -# some cases, their employer may be the copyright holder. To see the full list -# of contributors, see the revision history in source control. -# -# Please send a patch if you would like to be included in this list. -Google LLC diff --git a/vendor/gvisor.dev/gvisor/LICENSE b/vendor/gvisor.dev/gvisor/LICENSE deleted file mode 100644 index 74fddbbd90..0000000000 --- a/vendor/gvisor.dev/gvisor/LICENSE +++ /dev/null @@ -1,224 +0,0 @@ - - Apache License - Version 2.0, January 2004 - http://www.apache.org/licenses/ - - TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION - - 1. Definitions. - - "License" shall mean the terms and conditions for use, reproduction, - and distribution as defined by Sections 1 through 9 of this document. - - "Licensor" shall mean the copyright owner or entity authorized by - the copyright owner that is granting the License. - - "Legal Entity" shall mean the union of the acting entity and all - other entities that control, are controlled by, or are under common - control with that entity. For the purposes of this definition, - "control" means (i) the power, direct or indirect, to cause the - direction or management of such entity, whether by contract or - otherwise, or (ii) ownership of fifty percent (50%) or more of the - outstanding shares, or (iii) beneficial ownership of such entity. - - "You" (or "Your") shall mean an individual or Legal Entity - exercising permissions granted by this License. - - "Source" form shall mean the preferred form for making modifications, - including but not limited to software source code, documentation - source, and configuration files. - - "Object" form shall mean any form resulting from mechanical - transformation or translation of a Source form, including but - not limited to compiled object code, generated documentation, - and conversions to other media types. - - "Work" shall mean the work of authorship, whether in Source or - Object form, made available under the License, as indicated by a - copyright notice that is included in or attached to the work - (an example is provided in the Appendix below). - - "Derivative Works" shall mean any work, whether in Source or Object - form, that is based on (or derived from) the Work and for which the - editorial revisions, annotations, elaborations, or other modifications - represent, as a whole, an original work of authorship. For the purposes - of this License, Derivative Works shall not include works that remain - separable from, or merely link (or bind by name) to the interfaces of, - the Work and Derivative Works thereof. - - "Contribution" shall mean any work of authorship, including - the original version of the Work and any modifications or additions - to that Work or Derivative Works thereof, that is intentionally - submitted to Licensor for inclusion in the Work by the copyright owner - or by an individual or Legal Entity authorized to submit on behalf of - the copyright owner. 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Subject to the terms and conditions of - this License, each Contributor hereby grants to You a perpetual, - worldwide, non-exclusive, no-charge, royalty-free, irrevocable - copyright license to reproduce, prepare Derivative Works of, - publicly display, publicly perform, sublicense, and distribute the - Work and such Derivative Works in Source or Object form. - - 3. Grant of Patent License. Subject to the terms and conditions of - this License, each Contributor hereby grants to You a perpetual, - worldwide, non-exclusive, no-charge, royalty-free, irrevocable - (except as stated in this section) patent license to make, have made, - use, offer to sell, sell, import, and otherwise transfer the Work, - where such license applies only to those patent claims licensable - by such Contributor that are necessarily infringed by their - Contribution(s) alone or by combination of their Contribution(s) - with the Work to which such Contribution(s) was submitted. 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We also recommend that a - file or class name and description of purpose be included on the - same "printed page" as the copyright notice for easier - identification within third-party archives. - - Copyright [yyyy] [name of copyright owner] - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. - ------------------- - -Some files carry the following license, noted at the top of each file: - - Permission is hereby granted, free of charge, to any person obtaining a copy - of this software and associated documentation files (the "Software"), to deal - in the Software without restriction, including without limitation the rights - to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - copies of the Software, and to permit persons to whom the Software is - furnished to do so, subject to the following conditions: - - The above copyright notice and this permission notice shall be included in - all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - THE SOFTWARE. \ No newline at end of file diff --git a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/32b_32bit.go b/vendor/gvisor.dev/gvisor/pkg/atomicbitops/32b_32bit.go deleted file mode 100644 index d2ab60ec70..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/32b_32bit.go +++ /dev/null @@ -1,289 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build arm || mips || mipsle || 386 -// +build arm mips mipsle 386 - -package atomicbitops - -import ( - "sync/atomic" - - "gvisor.dev/gvisor/pkg/sync" -) - -// Note that this file is *identical* to 32b_64bit.go, as go_stateify gets -// confused about build tags if these are not separated. - -// LINT.IfChange - -// Int32 is an atomic int32. -// -// The default value is zero. -// -// Don't add fields to this struct. It is important that it remain the same -// size as its builtin analogue. -// -// +stateify savable -type Int32 struct { - _ sync.NoCopy - value int32 -} - -// FromInt32 returns an Int32 initialized to value v. -// -//go:nosplit -func FromInt32(v int32) Int32 { - return Int32{value: v} -} - -// Load is analogous to atomic.LoadInt32. -// -//go:nosplit -func (i *Int32) Load() int32 { - return atomic.LoadInt32(&i.value) -} - -// RacyLoad is analogous to reading an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (i *Int32) RacyLoad() int32 { - return i.value -} - -// Store is analogous to atomic.StoreInt32. -// -//go:nosplit -func (i *Int32) Store(v int32) { - atomic.StoreInt32(&i.value, v) -} - -// RacyStore is analogous to setting an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (i *Int32) RacyStore(v int32) { - i.value = v -} - -// Add is analogous to atomic.AddInt32. -// -//go:nosplit -func (i *Int32) Add(v int32) int32 { - return atomic.AddInt32(&i.value, v) -} - -// RacyAdd is analogous to adding to an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (i *Int32) RacyAdd(v int32) int32 { - i.value += v - return i.value -} - -// Swap is analogous to atomic.SwapInt32. -// -//go:nosplit -func (i *Int32) Swap(v int32) int32 { - return atomic.SwapInt32(&i.value, v) -} - -// CompareAndSwap is analogous to atomic.CompareAndSwapInt32. -// -//go:nosplit -func (i *Int32) CompareAndSwap(oldVal, newVal int32) bool { - return atomic.CompareAndSwapInt32(&i.value, oldVal, newVal) -} - -//go:nosplit -func (i *Int32) ptr() *int32 { - return &i.value -} - -// Uint32 is an atomic uint32. -// -// Don't add fields to this struct. It is important that it remain the same -// size as its builtin analogue. -// -// See aligned_unsafe.go in this directory for justification. -// -// +stateify savable -type Uint32 struct { - _ sync.NoCopy - value uint32 -} - -// FromUint32 returns an Uint32 initialized to value v. -// -//go:nosplit -func FromUint32(v uint32) Uint32 { - return Uint32{value: v} -} - -// Load is analogous to atomic.LoadUint32. -// -//go:nosplit -func (u *Uint32) Load() uint32 { - return atomic.LoadUint32(&u.value) -} - -// RacyLoad is analogous to reading an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (u *Uint32) RacyLoad() uint32 { - return u.value -} - -// Store is analogous to atomic.StoreUint32. -// -//go:nosplit -func (u *Uint32) Store(v uint32) { - atomic.StoreUint32(&u.value, v) -} - -// RacyStore is analogous to setting an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (u *Uint32) RacyStore(v uint32) { - u.value = v -} - -// Add is analogous to atomic.AddUint32. -// -//go:nosplit -func (u *Uint32) Add(v uint32) uint32 { - return atomic.AddUint32(&u.value, v) -} - -// RacyAdd is analogous to adding to an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (u *Uint32) RacyAdd(v uint32) uint32 { - u.value += v - return u.value -} - -// Swap is analogous to atomic.SwapUint32. -// -//go:nosplit -func (u *Uint32) Swap(v uint32) uint32 { - return atomic.SwapUint32(&u.value, v) -} - -// CompareAndSwap is analogous to atomic.CompareAndSwapUint32. -// -//go:nosplit -func (u *Uint32) CompareAndSwap(oldVal, newVal uint32) bool { - return atomic.CompareAndSwapUint32(&u.value, oldVal, newVal) -} - -//go:nosplit -func (u *Uint32) ptr() *uint32 { - return &u.value -} - -// Bool is an atomic Boolean. -// -// It is implemented by a Uint32, with value 0 indicating false, and 1 -// indicating true. -// -// +stateify savable -type Bool struct { - Uint32 -} - -// b32 returns a uint32 0 or 1 representing b. -func b32(b bool) uint32 { - if b { - return 1 - } - return 0 -} - -// FromBool returns a Bool initialized to value val. -// -//go:nosplit -func FromBool(val bool) Bool { - return Bool{ - Uint32: FromUint32(b32(val)), - } -} - -// Load is analogous to atomic.LoadBool, if such a thing existed. -// -//go:nosplit -func (b *Bool) Load() bool { - return b.Uint32.Load() != 0 -} - -// RacyLoad is analogous to reading an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (b *Bool) RacyLoad() bool { - return b.Uint32.RacyLoad() != 0 -} - -// Store is analogous to atomic.StoreBool, if such a thing existed. -// -//go:nosplit -func (b *Bool) Store(val bool) { - b.Uint32.Store(b32(val)) -} - -// RacyStore is analogous to setting an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (b *Bool) RacyStore(val bool) { - b.Uint32.RacyStore(b32(val)) -} - -// Swap is analogous to atomic.SwapBool, if such a thing existed. -// -//go:nosplit -func (b *Bool) Swap(val bool) bool { - return b.Uint32.Swap(b32(val)) != 0 -} - -// CompareAndSwap is analogous to atomic.CompareAndSwapBool, if such a thing -// existed. -// -//go:nosplit -func (b *Bool) CompareAndSwap(oldVal, newVal bool) bool { - return b.Uint32.CompareAndSwap(b32(oldVal), b32(newVal)) -} - -// LINT.ThenChange(32b_64bit.go) diff --git a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/32b_64bit.go b/vendor/gvisor.dev/gvisor/pkg/atomicbitops/32b_64bit.go deleted file mode 100644 index af926eb42b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/32b_64bit.go +++ /dev/null @@ -1,289 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build !arm && !mips && !mipsle && !386 -// +build !arm,!mips,!mipsle,!386 - -package atomicbitops - -import ( - "sync/atomic" - - "gvisor.dev/gvisor/pkg/sync" -) - -// Note that this file is *identical* to 32b_32bit.go, as go_stateify gets -// confused about build tags if these are not separated. - -// LINT.IfChange - -// Int32 is an atomic int32. -// -// The default value is zero. -// -// Don't add fields to this struct. It is important that it remain the same -// size as its builtin analogue. -// -// +stateify savable -type Int32 struct { - _ sync.NoCopy - value int32 -} - -// FromInt32 returns an Int32 initialized to value v. -// -//go:nosplit -func FromInt32(v int32) Int32 { - return Int32{value: v} -} - -// Load is analogous to atomic.LoadInt32. -// -//go:nosplit -func (i *Int32) Load() int32 { - return atomic.LoadInt32(&i.value) -} - -// RacyLoad is analogous to reading an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (i *Int32) RacyLoad() int32 { - return i.value -} - -// Store is analogous to atomic.StoreInt32. -// -//go:nosplit -func (i *Int32) Store(v int32) { - atomic.StoreInt32(&i.value, v) -} - -// RacyStore is analogous to setting an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (i *Int32) RacyStore(v int32) { - i.value = v -} - -// Add is analogous to atomic.AddInt32. -// -//go:nosplit -func (i *Int32) Add(v int32) int32 { - return atomic.AddInt32(&i.value, v) -} - -// RacyAdd is analogous to adding to an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (i *Int32) RacyAdd(v int32) int32 { - i.value += v - return i.value -} - -// Swap is analogous to atomic.SwapInt32. -// -//go:nosplit -func (i *Int32) Swap(v int32) int32 { - return atomic.SwapInt32(&i.value, v) -} - -// CompareAndSwap is analogous to atomic.CompareAndSwapInt32. -// -//go:nosplit -func (i *Int32) CompareAndSwap(oldVal, newVal int32) bool { - return atomic.CompareAndSwapInt32(&i.value, oldVal, newVal) -} - -//go:nosplit -func (i *Int32) ptr() *int32 { - return &i.value -} - -// Uint32 is an atomic uint32. -// -// Don't add fields to this struct. It is important that it remain the same -// size as its builtin analogue. -// -// See aligned_unsafe.go in this directory for justification. -// -// +stateify savable -type Uint32 struct { - _ sync.NoCopy - value uint32 -} - -// FromUint32 returns an Uint32 initialized to value v. -// -//go:nosplit -func FromUint32(v uint32) Uint32 { - return Uint32{value: v} -} - -// Load is analogous to atomic.LoadUint32. -// -//go:nosplit -func (u *Uint32) Load() uint32 { - return atomic.LoadUint32(&u.value) -} - -// RacyLoad is analogous to reading an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (u *Uint32) RacyLoad() uint32 { - return u.value -} - -// Store is analogous to atomic.StoreUint32. -// -//go:nosplit -func (u *Uint32) Store(v uint32) { - atomic.StoreUint32(&u.value, v) -} - -// RacyStore is analogous to setting an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (u *Uint32) RacyStore(v uint32) { - u.value = v -} - -// Add is analogous to atomic.AddUint32. -// -//go:nosplit -func (u *Uint32) Add(v uint32) uint32 { - return atomic.AddUint32(&u.value, v) -} - -// RacyAdd is analogous to adding to an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (u *Uint32) RacyAdd(v uint32) uint32 { - u.value += v - return u.value -} - -// Swap is analogous to atomic.SwapUint32. -// -//go:nosplit -func (u *Uint32) Swap(v uint32) uint32 { - return atomic.SwapUint32(&u.value, v) -} - -// CompareAndSwap is analogous to atomic.CompareAndSwapUint32. -// -//go:nosplit -func (u *Uint32) CompareAndSwap(oldVal, newVal uint32) bool { - return atomic.CompareAndSwapUint32(&u.value, oldVal, newVal) -} - -//go:nosplit -func (u *Uint32) ptr() *uint32 { - return &u.value -} - -// Bool is an atomic Boolean. -// -// It is implemented by a Uint32, with value 0 indicating false, and 1 -// indicating true. -// -// +stateify savable -type Bool struct { - Uint32 -} - -// b32 returns a uint32 0 or 1 representing b. -func b32(b bool) uint32 { - if b { - return 1 - } - return 0 -} - -// FromBool returns a Bool initialized to value val. -// -//go:nosplit -func FromBool(val bool) Bool { - return Bool{ - Uint32: FromUint32(b32(val)), - } -} - -// Load is analogous to atomic.LoadBool, if such a thing existed. -// -//go:nosplit -func (b *Bool) Load() bool { - return b.Uint32.Load() != 0 -} - -// RacyLoad is analogous to reading an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (b *Bool) RacyLoad() bool { - return b.Uint32.RacyLoad() != 0 -} - -// Store is analogous to atomic.StoreBool, if such a thing existed. -// -//go:nosplit -func (b *Bool) Store(val bool) { - b.Uint32.Store(b32(val)) -} - -// RacyStore is analogous to setting an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (b *Bool) RacyStore(val bool) { - b.Uint32.RacyStore(b32(val)) -} - -// Swap is analogous to atomic.SwapBool, if such a thing existed. -// -//go:nosplit -func (b *Bool) Swap(val bool) bool { - return b.Uint32.Swap(b32(val)) != 0 -} - -// CompareAndSwap is analogous to atomic.CompareAndSwapBool, if such a thing -// existed. -// -//go:nosplit -func (b *Bool) CompareAndSwap(oldVal, newVal bool) bool { - return b.Uint32.CompareAndSwap(b32(oldVal), b32(newVal)) -} - -// LINT.ThenChange(32b_32bit.go) diff --git a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/aligned_32bit_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/atomicbitops/aligned_32bit_unsafe.go deleted file mode 100644 index a76c6ed30f..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/aligned_32bit_unsafe.go +++ /dev/null @@ -1,231 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build arm || mips || mipsle || 386 -// +build arm mips mipsle 386 - -package atomicbitops - -import ( - "sync/atomic" - "unsafe" - - "gvisor.dev/gvisor/pkg/sync" -) - -// Int64 is an atomic int64 that is guaranteed to be 64-bit -// aligned, even on 32-bit systems. -// -// Don't add fields to this struct. It is important that it remain the same -// size as its builtin analogue. -// -// Per https://golang.org/pkg/sync/atomic/#pkg-note-BUG: -// -// "On ARM, 386, and 32-bit MIPS, it is the caller's responsibility to arrange -// for 64-bit alignment of 64-bit words accessed atomically. The first word in -// a variable or in an allocated struct, array, or slice can be relied upon to -// be 64-bit aligned." -// -// +stateify savable -type Int64 struct { - _ sync.NoCopy - value int64 - value32 int32 -} - -//go:nosplit -func (i *Int64) ptr() *int64 { - // On 32-bit systems, i.value is guaranteed to be 32-bit aligned. It means - // that in the 12-byte i.value, there are guaranteed to be 8 contiguous bytes - // with 64-bit alignment. - return (*int64)(unsafe.Pointer((uintptr(unsafe.Pointer(&i.value)) + 4) &^ 7)) -} - -// FromInt64 returns an Int64 initialized to value v. -// -//go:nosplit -func FromInt64(v int64) Int64 { - var i Int64 - *i.ptr() = v - return i -} - -// Load is analogous to atomic.LoadInt64. -// -//go:nosplit -func (i *Int64) Load() int64 { - return atomic.LoadInt64(i.ptr()) -} - -// RacyLoad is analogous to reading an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (i *Int64) RacyLoad() int64 { - return *i.ptr() -} - -// Store is analogous to atomic.StoreInt64. -// -//go:nosplit -func (i *Int64) Store(v int64) { - atomic.StoreInt64(i.ptr(), v) -} - -// RacyStore is analogous to setting an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (i *Int64) RacyStore(v int64) { - *i.ptr() = v -} - -// Add is analogous to atomic.AddInt64. -// -//go:nosplit -func (i *Int64) Add(v int64) int64 { - return atomic.AddInt64(i.ptr(), v) -} - -// RacyAdd is analogous to adding to an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (i *Int64) RacyAdd(v int64) int64 { - *i.ptr() += v - return *i.ptr() -} - -// Swap is analogous to atomic.SwapInt64. -// -//go:nosplit -func (i *Int64) Swap(v int64) int64 { - return atomic.SwapInt64(i.ptr(), v) -} - -// CompareAndSwap is analogous to atomic.CompareAndSwapInt64. -// -//go:nosplit -func (i *Int64) CompareAndSwap(oldVal, newVal int64) bool { - return atomic.CompareAndSwapInt64(&i.value, oldVal, newVal) -} - -// Uint64 is an atomic uint64 that is guaranteed to be 64-bit -// aligned, even on 32-bit systems. -// -// Don't add fields to this struct. It is important that it remain the same -// size as its builtin analogue. -// -// Per https://golang.org/pkg/sync/atomic/#pkg-note-BUG: -// -// "On ARM, 386, and 32-bit MIPS, it is the caller's responsibility to arrange -// for 64-bit alignment of 64-bit words accessed atomically. The first word in -// a variable or in an allocated struct, array, or slice can be relied upon to -// be 64-bit aligned." -// -// +stateify savable -type Uint64 struct { - _ sync.NoCopy - value uint64 - value32 uint32 -} - -//go:nosplit -func (u *Uint64) ptr() *uint64 { - // On 32-bit systems, i.value is guaranteed to be 32-bit aligned. It means - // that in the 12-byte i.value, there are guaranteed to be 8 contiguous bytes - // with 64-bit alignment. - return (*uint64)(unsafe.Pointer((uintptr(unsafe.Pointer(&u.value)) + 4) &^ 7)) -} - -// FromUint64 returns an Uint64 initialized to value v. -// -//go:nosplit -func FromUint64(v uint64) Uint64 { - var u Uint64 - *u.ptr() = v - return u -} - -// Load is analogous to atomic.LoadUint64. -// -//go:nosplit -func (u *Uint64) Load() uint64 { - return atomic.LoadUint64(u.ptr()) -} - -// RacyLoad is analogous to reading an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (u *Uint64) RacyLoad() uint64 { - return *u.ptr() -} - -// Store is analogous to atomic.StoreUint64. -// -//go:nosplit -func (u *Uint64) Store(v uint64) { - atomic.StoreUint64(u.ptr(), v) -} - -// RacyStore is analogous to setting an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (u *Uint64) RacyStore(v uint64) { - *u.ptr() = v -} - -// Add is analogous to atomic.AddUint64. -// -//go:nosplit -func (u *Uint64) Add(v uint64) uint64 { - return atomic.AddUint64(u.ptr(), v) -} - -// RacyAdd is analogous to adding to an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (u *Uint64) RacyAdd(v uint64) uint64 { - *u.ptr() += v - return *u.ptr() -} - -// Swap is analogous to atomic.SwapUint64. -// -//go:nosplit -func (u *Uint64) Swap(v uint64) uint64 { - return atomic.SwapUint64(u.ptr(), v) -} - -// CompareAndSwap is analogous to atomic.CompareAndSwapUint64. -// -//go:nosplit -func (u *Uint64) CompareAndSwap(oldVal, newVal uint64) bool { - return atomic.CompareAndSwapUint64(u.ptr(), oldVal, newVal) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/aligned_64bit.go b/vendor/gvisor.dev/gvisor/pkg/atomicbitops/aligned_64bit.go deleted file mode 100644 index ecb37e6bbc..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/aligned_64bit.go +++ /dev/null @@ -1,212 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build !arm && !mips && !mipsle && !386 -// +build !arm,!mips,!mipsle,!386 - -package atomicbitops - -import ( - "sync/atomic" - - "gvisor.dev/gvisor/pkg/sync" -) - -// Int64 is an atomic int64 that is guaranteed to be 64-bit -// aligned, even on 32-bit systems. On most architectures, it's just a regular -// int64. -// -// The default value is zero. -// -// Don't add fields to this struct. It is important that it remain the same -// size as its builtin analogue. -// -// See aligned_32bit_unsafe.go in this directory for justification. -// -// +stateify savable -type Int64 struct { - _ sync.NoCopy - value int64 -} - -// FromInt64 returns an Int64 initialized to value v. -// -//go:nosplit -func FromInt64(v int64) Int64 { - return Int64{value: v} -} - -// Load is analogous to atomic.LoadInt64. -// -//go:nosplit -func (i *Int64) Load() int64 { - return atomic.LoadInt64(&i.value) -} - -// RacyLoad is analogous to reading an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (i *Int64) RacyLoad() int64 { - return i.value -} - -// Store is analogous to atomic.StoreInt64. -// -//go:nosplit -func (i *Int64) Store(v int64) { - atomic.StoreInt64(&i.value, v) -} - -// RacyStore is analogous to setting an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (i *Int64) RacyStore(v int64) { - i.value = v -} - -// Add is analogous to atomic.AddInt64. -// -//go:nosplit -func (i *Int64) Add(v int64) int64 { - return atomic.AddInt64(&i.value, v) -} - -// RacyAdd is analogous to adding to an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (i *Int64) RacyAdd(v int64) int64 { - i.value += v - return i.value -} - -// Swap is analogous to atomic.SwapInt64. -// -//go:nosplit -func (i *Int64) Swap(v int64) int64 { - return atomic.SwapInt64(&i.value, v) -} - -// CompareAndSwap is analogous to atomic.CompareAndSwapInt64. -// -//go:nosplit -func (i *Int64) CompareAndSwap(oldVal, newVal int64) bool { - return atomic.CompareAndSwapInt64(&i.value, oldVal, newVal) -} - -//go:nosplit -func (i *Int64) ptr() *int64 { - return &i.value -} - -// Uint64 is an atomic uint64 that is guaranteed to be 64-bit -// aligned, even on 32-bit systems. On most architectures, it's just a regular -// uint64. -// -// Don't add fields to this struct. It is important that it remain the same -// size as its builtin analogue. -// -// See aligned_unsafe.go in this directory for justification. -// -// +stateify savable -type Uint64 struct { - _ sync.NoCopy - value uint64 -} - -// FromUint64 returns an Uint64 initialized to value v. -// -//go:nosplit -func FromUint64(v uint64) Uint64 { - return Uint64{value: v} -} - -// Load is analogous to atomic.LoadUint64. -// -//go:nosplit -func (u *Uint64) Load() uint64 { - return atomic.LoadUint64(&u.value) -} - -// RacyLoad is analogous to reading an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (u *Uint64) RacyLoad() uint64 { - return u.value -} - -// Store is analogous to atomic.StoreUint64. -// -//go:nosplit -func (u *Uint64) Store(v uint64) { - atomic.StoreUint64(&u.value, v) -} - -// RacyStore is analogous to setting an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (u *Uint64) RacyStore(v uint64) { - u.value = v -} - -// Add is analogous to atomic.AddUint64. -// -//go:nosplit -func (u *Uint64) Add(v uint64) uint64 { - return atomic.AddUint64(&u.value, v) -} - -// RacyAdd is analogous to adding to an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (u *Uint64) RacyAdd(v uint64) uint64 { - u.value += v - return u.value -} - -// Swap is analogous to atomic.SwapUint64. -// -//go:nosplit -func (u *Uint64) Swap(v uint64) uint64 { - return atomic.SwapUint64(&u.value, v) -} - -// CompareAndSwap is analogous to atomic.CompareAndSwapUint64. -// -//go:nosplit -func (u *Uint64) CompareAndSwap(oldVal, newVal uint64) bool { - return atomic.CompareAndSwapUint64(&u.value, oldVal, newVal) -} - -//go:nosplit -func (u *Uint64) ptr() *uint64 { - return &u.value -} diff --git a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops.go b/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops.go deleted file mode 100644 index 36620b3cbd..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops.go +++ /dev/null @@ -1,82 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build amd64 || arm64 -// +build amd64 arm64 - -// Package atomicbitops provides extensions to the sync/atomic package. -// -// All read-modify-write operations implemented by this package have -// acquire-release memory ordering (like sync/atomic). -// -// +checkalignedignore -package atomicbitops - -// AndUint32 atomically applies bitwise AND operation to *addr with val. -func AndUint32(addr *Uint32, val uint32) { - andUint32(&addr.value, val) -} - -func andUint32(addr *uint32, val uint32) - -// OrUint32 atomically applies bitwise OR operation to *addr with val. -func OrUint32(addr *Uint32, val uint32) { - orUint32(&addr.value, val) -} - -func orUint32(addr *uint32, val uint32) - -// XorUint32 atomically applies bitwise XOR operation to *addr with val. -func XorUint32(addr *Uint32, val uint32) { - xorUint32(&addr.value, val) -} - -func xorUint32(addr *uint32, val uint32) - -// CompareAndSwapUint32 is like sync/atomic.CompareAndSwapUint32, but returns -// the value previously stored at addr. -func CompareAndSwapUint32(addr *Uint32, old, new uint32) uint32 { - return compareAndSwapUint32(&addr.value, old, new) -} - -func compareAndSwapUint32(addr *uint32, old, new uint32) uint32 - -// AndUint64 atomically applies bitwise AND operation to *addr with val. -func AndUint64(addr *Uint64, val uint64) { - andUint64(&addr.value, val) -} - -func andUint64(addr *uint64, val uint64) - -// OrUint64 atomically applies bitwise OR operation to *addr with val. -func OrUint64(addr *Uint64, val uint64) { - orUint64(&addr.value, val) -} - -func orUint64(addr *uint64, val uint64) - -// XorUint64 atomically applies bitwise XOR operation to *addr with val. -func XorUint64(addr *Uint64, val uint64) { - xorUint64(&addr.value, val) -} - -func xorUint64(addr *uint64, val uint64) - -// CompareAndSwapUint64 is like sync/atomic.CompareAndSwapUint64, but returns -// the value previously stored at addr. -func CompareAndSwapUint64(addr *Uint64, old, new uint64) uint64 { - return compareAndSwapUint64(&addr.value, old, new) -} - -func compareAndSwapUint64(addr *uint64, old, new uint64) uint64 diff --git a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_32bit_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_32bit_state_autogen.go deleted file mode 100644 index 78e501aa62..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_32bit_state_autogen.go +++ /dev/null @@ -1,93 +0,0 @@ -// automatically generated by stateify. - -//go:build arm || mips || mipsle || 386 -// +build arm mips mipsle 386 - -package atomicbitops - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (i *Int32) StateTypeName() string { - return "pkg/atomicbitops.Int32" -} - -func (i *Int32) StateFields() []string { - return []string{ - "value", - } -} - -func (i *Int32) beforeSave() {} - -// +checklocksignore -func (i *Int32) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.value) -} - -func (i *Int32) afterLoad(context.Context) {} - -// +checklocksignore -func (i *Int32) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.value) -} - -func (u *Uint32) StateTypeName() string { - return "pkg/atomicbitops.Uint32" -} - -func (u *Uint32) StateFields() []string { - return []string{ - "value", - } -} - -func (u *Uint32) beforeSave() {} - -// +checklocksignore -func (u *Uint32) StateSave(stateSinkObject state.Sink) { - u.beforeSave() - stateSinkObject.Save(0, &u.value) -} - -func (u *Uint32) afterLoad(context.Context) {} - -// +checklocksignore -func (u *Uint32) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &u.value) -} - -func (b *Bool) StateTypeName() string { - return "pkg/atomicbitops.Bool" -} - -func (b *Bool) StateFields() []string { - return []string{ - "Uint32", - } -} - -func (b *Bool) beforeSave() {} - -// +checklocksignore -func (b *Bool) StateSave(stateSinkObject state.Sink) { - b.beforeSave() - stateSinkObject.Save(0, &b.Uint32) -} - -func (b *Bool) afterLoad(context.Context) {} - -// +checklocksignore -func (b *Bool) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &b.Uint32) -} - -func init() { - state.Register((*Int32)(nil)) - state.Register((*Uint32)(nil)) - state.Register((*Bool)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_32bit_unsafe_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_32bit_unsafe_state_autogen.go deleted file mode 100644 index 606a6d0253..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_32bit_unsafe_state_autogen.go +++ /dev/null @@ -1,73 +0,0 @@ -// automatically generated by stateify. - -//go:build arm || mips || mipsle || 386 -// +build arm mips mipsle 386 - -package atomicbitops - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (i *Int64) StateTypeName() string { - return "pkg/atomicbitops.Int64" -} - -func (i *Int64) StateFields() []string { - return []string{ - "value", - "value32", - } -} - -func (i *Int64) beforeSave() {} - -// +checklocksignore -func (i *Int64) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.value) - stateSinkObject.Save(1, &i.value32) -} - -func (i *Int64) afterLoad(context.Context) {} - -// +checklocksignore -func (i *Int64) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.value) - stateSourceObject.Load(1, &i.value32) -} - -func (u *Uint64) StateTypeName() string { - return "pkg/atomicbitops.Uint64" -} - -func (u *Uint64) StateFields() []string { - return []string{ - "value", - "value32", - } -} - -func (u *Uint64) beforeSave() {} - -// +checklocksignore -func (u *Uint64) StateSave(stateSinkObject state.Sink) { - u.beforeSave() - stateSinkObject.Save(0, &u.value) - stateSinkObject.Save(1, &u.value32) -} - -func (u *Uint64) afterLoad(context.Context) {} - -// +checklocksignore -func (u *Uint64) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &u.value) - stateSourceObject.Load(1, &u.value32) -} - -func init() { - state.Register((*Int64)(nil)) - state.Register((*Uint64)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_64bit_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_64bit_state_autogen.go deleted file mode 100644 index 8e6cd37c2b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_64bit_state_autogen.go +++ /dev/null @@ -1,145 +0,0 @@ -// automatically generated by stateify. - -//go:build !arm && !mips && !mipsle && !386 && !arm && !mips && !mipsle && !386 -// +build !arm,!mips,!mipsle,!386,!arm,!mips,!mipsle,!386 - -package atomicbitops - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (i *Int32) StateTypeName() string { - return "pkg/atomicbitops.Int32" -} - -func (i *Int32) StateFields() []string { - return []string{ - "value", - } -} - -func (i *Int32) beforeSave() {} - -// +checklocksignore -func (i *Int32) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.value) -} - -func (i *Int32) afterLoad(context.Context) {} - -// +checklocksignore -func (i *Int32) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.value) -} - -func (u *Uint32) StateTypeName() string { - return "pkg/atomicbitops.Uint32" -} - -func (u *Uint32) StateFields() []string { - return []string{ - "value", - } -} - -func (u *Uint32) beforeSave() {} - -// +checklocksignore -func (u *Uint32) StateSave(stateSinkObject state.Sink) { - u.beforeSave() - stateSinkObject.Save(0, &u.value) -} - -func (u *Uint32) afterLoad(context.Context) {} - -// +checklocksignore -func (u *Uint32) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &u.value) -} - -func (b *Bool) StateTypeName() string { - return "pkg/atomicbitops.Bool" -} - -func (b *Bool) StateFields() []string { - return []string{ - "Uint32", - } -} - -func (b *Bool) beforeSave() {} - -// +checklocksignore -func (b *Bool) StateSave(stateSinkObject state.Sink) { - b.beforeSave() - stateSinkObject.Save(0, &b.Uint32) -} - -func (b *Bool) afterLoad(context.Context) {} - -// +checklocksignore -func (b *Bool) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &b.Uint32) -} - -func (i *Int64) StateTypeName() string { - return "pkg/atomicbitops.Int64" -} - -func (i *Int64) StateFields() []string { - return []string{ - "value", - } -} - -func (i *Int64) beforeSave() {} - -// +checklocksignore -func (i *Int64) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.value) -} - -func (i *Int64) afterLoad(context.Context) {} - -// +checklocksignore -func (i *Int64) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.value) -} - -func (u *Uint64) StateTypeName() string { - return "pkg/atomicbitops.Uint64" -} - -func (u *Uint64) StateFields() []string { - return []string{ - "value", - } -} - -func (u *Uint64) beforeSave() {} - -// +checklocksignore -func (u *Uint64) StateSave(stateSinkObject state.Sink) { - u.beforeSave() - stateSinkObject.Save(0, &u.value) -} - -func (u *Uint64) afterLoad(context.Context) {} - -// +checklocksignore -func (u *Uint64) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &u.value) -} - -func init() { - state.Register((*Int32)(nil)) - state.Register((*Uint32)(nil)) - state.Register((*Bool)(nil)) - state.Register((*Int64)(nil)) - state.Register((*Uint64)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_amd64.s b/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_amd64.s deleted file mode 100644 index c38f1cb661..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_amd64.s +++ /dev/null @@ -1,77 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build amd64 - -#include "textflag.h" - -TEXT ·andUint32(SB),NOSPLIT|NOFRAME,$0-12 - MOVQ addr+0(FP), BX - MOVL val+8(FP), AX - LOCK - ANDL AX, 0(BX) - RET - -TEXT ·orUint32(SB),NOSPLIT|NOFRAME,$0-12 - MOVQ addr+0(FP), BX - MOVL val+8(FP), AX - LOCK - ORL AX, 0(BX) - RET - -TEXT ·xorUint32(SB),NOSPLIT|NOFRAME,$0-12 - MOVQ addr+0(FP), BX - MOVL val+8(FP), AX - LOCK - XORL AX, 0(BX) - RET - -TEXT ·compareAndSwapUint32(SB),NOSPLIT|NOFRAME,$0-20 - MOVQ addr+0(FP), DI - MOVL old+8(FP), AX - MOVL new+12(FP), DX - LOCK - CMPXCHGL DX, 0(DI) - MOVL AX, ret+16(FP) - RET - -TEXT ·andUint64(SB),NOSPLIT|NOFRAME,$0-16 - MOVQ addr+0(FP), BX - MOVQ val+8(FP), AX - LOCK - ANDQ AX, 0(BX) - RET - -TEXT ·orUint64(SB),NOSPLIT|NOFRAME,$0-16 - MOVQ addr+0(FP), BX - MOVQ val+8(FP), AX - LOCK - ORQ AX, 0(BX) - RET - -TEXT ·xorUint64(SB),NOSPLIT|NOFRAME,$0-16 - MOVQ addr+0(FP), BX - MOVQ val+8(FP), AX - LOCK - XORQ AX, 0(BX) - RET - -TEXT ·compareAndSwapUint64(SB),NOSPLIT|NOFRAME,$0-32 - MOVQ addr+0(FP), DI - MOVQ old+8(FP), AX - MOVQ new+16(FP), DX - LOCK - CMPXCHGQ DX, 0(DI) - MOVQ AX, ret+24(FP) - RET diff --git a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_arm64.go b/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_arm64.go deleted file mode 100644 index 8cf0038fd5..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_arm64.go +++ /dev/null @@ -1,40 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build arm64 -// +build arm64 - -package atomicbitops - -import ( - "runtime" - - "golang.org/x/sys/cpu" - "gvisor.dev/gvisor/pkg/cpuid" -) - -var arm64HasATOMICS bool - -func init() { - // The gvisor cpuid package only works on Linux. - // For all other operating systems, use Go's x/sys/cpu package - // to get the one bit we care about here. - // - // See https://github.com/google/gvisor/issues/7849. - if runtime.GOOS == "linux" { - arm64HasATOMICS = cpuid.HostFeatureSet().HasFeature(cpuid.ARM64FeatureATOMICS) - } else { - arm64HasATOMICS = cpu.ARM64.HasATOMICS - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_arm64.s b/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_arm64.s deleted file mode 100644 index cf922117d8..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_arm64.s +++ /dev/null @@ -1,141 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build arm64 - -#include "textflag.h" - -TEXT ·andUint32(SB),NOSPLIT,$0-12 - MOVD addr+0(FP), R0 - MOVW val+8(FP), R1 - MOVBU ·arm64HasATOMICS(SB), R4 - CBZ R4, load_store_loop - MVN R1, R2 - LDCLRALW R2, (R0), R3 - RET -load_store_loop: - LDAXRW (R0), R2 - ANDW R1, R2 - STLXRW R2, (R0), R3 - CBNZ R3, load_store_loop - RET - -TEXT ·orUint32(SB),NOSPLIT,$0-12 - MOVD addr+0(FP), R0 - MOVW val+8(FP), R1 - MOVBU ·arm64HasATOMICS(SB), R4 - CBZ R4, load_store_loop - LDORALW R1, (R0), R2 - RET -load_store_loop: - LDAXRW (R0), R2 - ORRW R1, R2 - STLXRW R2, (R0), R3 - CBNZ R3, load_store_loop - RET - -TEXT ·xorUint32(SB),NOSPLIT,$0-12 - MOVD addr+0(FP), R0 - MOVW val+8(FP), R1 - MOVBU ·arm64HasATOMICS(SB), R4 - CBZ R4, load_store_loop - LDEORALW R1, (R0), R2 - RET -load_store_loop: - LDAXRW (R0), R2 - EORW R1, R2 - STLXRW R2, (R0), R3 - CBNZ R3, load_store_loop - RET - -TEXT ·compareAndSwapUint32(SB),NOSPLIT,$0-20 - MOVD addr+0(FP), R0 - MOVW old+8(FP), R1 - MOVW new+12(FP), R2 - MOVBU ·arm64HasATOMICS(SB), R4 - CBZ R4, load_store_loop - CASALW R1, (R0), R2 - MOVW R1, ret+16(FP) - RET -load_store_loop: - LDAXRW (R0), R3 - CMPW R1, R3 - BNE ok - STLXRW R2, (R0), R4 - CBNZ R4, load_store_loop -ok: - MOVW R3, ret+16(FP) - RET - -TEXT ·andUint64(SB),NOSPLIT,$0-16 - MOVD addr+0(FP), R0 - MOVD val+8(FP), R1 - MOVBU ·arm64HasATOMICS(SB), R4 - CBZ R4, load_store_loop - MVN R1, R2 - LDCLRALD R2, (R0), R3 - RET -load_store_loop: - LDAXR (R0), R2 - AND R1, R2 - STLXR R2, (R0), R3 - CBNZ R3, load_store_loop - RET - -TEXT ·orUint64(SB),NOSPLIT,$0-16 - MOVD addr+0(FP), R0 - MOVD val+8(FP), R1 - MOVBU ·arm64HasATOMICS(SB), R4 - CBZ R4, load_store_loop - LDORALD R1, (R0), R2 - RET -load_store_loop: - LDAXR (R0), R2 - ORR R1, R2 - STLXR R2, (R0), R3 - CBNZ R3, load_store_loop - RET - -TEXT ·xorUint64(SB),NOSPLIT,$0-16 - MOVD addr+0(FP), R0 - MOVD val+8(FP), R1 - MOVBU ·arm64HasATOMICS(SB), R4 - CBZ R4, load_store_loop - LDEORALD R1, (R0), R2 - RET -load_store_loop: - LDAXR (R0), R2 - EOR R1, R2 - STLXR R2, (R0), R3 - CBNZ R3, load_store_loop - RET - -TEXT ·compareAndSwapUint64(SB),NOSPLIT,$0-32 - MOVD addr+0(FP), R0 - MOVD old+8(FP), R1 - MOVD new+16(FP), R2 - MOVBU ·arm64HasATOMICS(SB), R4 - CBZ R4, load_store_loop - CASALD R1, (R0), R2 - MOVD R1, ret+24(FP) - RET -load_store_loop: - LDAXR (R0), R3 - CMP R1, R3 - BNE ok - STLXR R2, (R0), R4 - CBNZ R4, load_store_loop -ok: - MOVD R3, ret+24(FP) - RET diff --git a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_arm64_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_arm64_state_autogen.go deleted file mode 100644 index d134333979..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_arm64_state_autogen.go +++ /dev/null @@ -1,6 +0,0 @@ -// automatically generated by stateify. - -//go:build arm64 -// +build arm64 - -package atomicbitops diff --git a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_float64.go b/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_float64.go deleted file mode 100644 index 22e8e3b0a8..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_float64.go +++ /dev/null @@ -1,105 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package atomicbitops - -import ( - "math" - - "gvisor.dev/gvisor/pkg/sync" -) - -// Float64 is an atomic 64-bit floating-point number. -// -// +stateify savable -type Float64 struct { - _ sync.NoCopy - // bits stores the bit of a 64-bit floating point number. - // It is not (and should not be interpreted as) a real uint64. - bits Uint64 -} - -// FromFloat64 returns a Float64 initialized to value v. -// -//go:nosplit -func FromFloat64(v float64) Float64 { - return Float64{bits: FromUint64(math.Float64bits(v))} -} - -// Load loads the floating-point value. -// -//go:nosplit -func (f *Float64) Load() float64 { - return math.Float64frombits(f.bits.Load()) -} - -// RacyLoad is analogous to reading an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (f *Float64) RacyLoad() float64 { - return math.Float64frombits(f.bits.RacyLoad()) -} - -// Store stores the given floating-point value in the Float64. -// -//go:nosplit -func (f *Float64) Store(v float64) { - f.bits.Store(math.Float64bits(v)) -} - -// RacyStore is analogous to setting an atomic value without using -// synchronization. -// -// It may be helpful to document why a racy operation is permitted. -// -//go:nosplit -func (f *Float64) RacyStore(v float64) { - f.bits.RacyStore(math.Float64bits(v)) -} - -// Swap stores the given value and returns the previously-stored one. -// -//go:nosplit -func (f *Float64) Swap(v float64) float64 { - return math.Float64frombits(f.bits.Swap(math.Float64bits(v))) -} - -// CompareAndSwap does a compare-and-swap operation on the float64 value. -// Note that unlike typical IEEE 754 semantics, this function will treat NaN -// as equal to itself if all of its bits exactly match. -// -//go:nosplit -func (f *Float64) CompareAndSwap(oldVal, newVal float64) bool { - return f.bits.CompareAndSwap(math.Float64bits(oldVal), math.Float64bits(newVal)) -} - -// Add increments the float by the given value. -// Note that unlike an atomic integer, this requires spin-looping until we win -// the compare-and-swap race, so this may take an indeterminate amount of time. -// -//go:nosplit -func (f *Float64) Add(v float64) { - // We do a racy load here because we optimistically think it may pass the - // compare-and-swap operation. If it doesn't, we'll load it safely, so this - // is OK and not a race for the overall intent of the user to add a number. - sync.RaceDisable() - oldVal := f.RacyLoad() - for !f.CompareAndSwap(oldVal, oldVal+v) { - oldVal = f.Load() - } - sync.RaceEnable() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_noasm.go b/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_noasm.go deleted file mode 100644 index db8ca46f3b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_noasm.go +++ /dev/null @@ -1,112 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build !amd64 && !arm64 -// +build !amd64,!arm64 - -package atomicbitops - -import "sync/atomic" - -//go:nosplit -func AndUint32(addr *Uint32, val uint32) { - for { - o := addr.Load() - n := o & val - if atomic.CompareAndSwapUint32(&addr.value, o, n) { - break - } - } -} - -//go:nosplit -func OrUint32(addr *Uint32, val uint32) { - for { - o := addr.Load() - n := o | val - if atomic.CompareAndSwapUint32(&addr.value, o, n) { - break - } - } -} - -//go:nosplit -func XorUint32(addr *Uint32, val uint32) { - for { - o := addr.Load() - n := o ^ val - if atomic.CompareAndSwapUint32(&addr.value, o, n) { - break - } - } -} - -//go:nosplit -func CompareAndSwapUint32(addr *Uint32, old, new uint32) (prev uint32) { - for { - prev = addr.Load() - if prev != old { - return - } - if atomic.CompareAndSwapUint32(&addr.value, old, new) { - return - } - } -} - -//go:nosplit -func AndUint64(addr *Uint64, val uint64) { - for { - o := atomic.LoadUint64(addr.ptr()) - n := o & val - if atomic.CompareAndSwapUint64(addr.ptr(), o, n) { - break - } - } -} - -//go:nosplit -func OrUint64(addr *Uint64, val uint64) { - for { - o := atomic.LoadUint64(addr.ptr()) - n := o | val - if atomic.CompareAndSwapUint64(addr.ptr(), o, n) { - break - } - } -} - -//go:nosplit -func XorUint64(addr *Uint64, val uint64) { - for { - o := atomic.LoadUint64(addr.ptr()) - n := o ^ val - if atomic.CompareAndSwapUint64(addr.ptr(), o, n) { - break - } - } -} - -//go:nosplit -func CompareAndSwapUint64(addr *Uint64, old, new uint64) (prev uint64) { - for { - prev = atomic.LoadUint64(addr.ptr()) - if prev != old { - return - } - if atomic.CompareAndSwapUint64(addr.ptr(), old, new) { - return - } - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_state_autogen.go deleted file mode 100644 index ca763da6a9..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/atomicbitops/atomicbitops_state_autogen.go +++ /dev/null @@ -1,43 +0,0 @@ -// automatically generated by stateify. - -//go:build (amd64 || arm64) && !amd64 && !arm64 -// +build amd64 arm64 -// +build !amd64 -// +build !arm64 - -package atomicbitops - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (f *Float64) StateTypeName() string { - return "pkg/atomicbitops.Float64" -} - -func (f *Float64) StateFields() []string { - return []string{ - "bits", - } -} - -func (f *Float64) beforeSave() {} - -// +checklocksignore -func (f *Float64) StateSave(stateSinkObject state.Sink) { - f.beforeSave() - stateSinkObject.Save(0, &f.bits) -} - -func (f *Float64) afterLoad(context.Context) {} - -// +checklocksignore -func (f *Float64) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &f.bits) -} - -func init() { - state.Register((*Float64)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/bits/bits.go b/vendor/gvisor.dev/gvisor/pkg/bits/bits.go deleted file mode 100644 index d16448c3d6..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/bits/bits.go +++ /dev/null @@ -1,26 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package bits includes all bit related types and operations. -package bits - -// AlignUp rounds a length up to an alignment. align must be a power of 2. -func AlignUp(length int, align uint) int { - return (length + int(align) - 1) & ^(int(align) - 1) -} - -// AlignDown rounds a length down to an alignment. align must be a power of 2. -func AlignDown(length int, align uint) int { - return length & ^(int(align) - 1) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/bits/bits32.go b/vendor/gvisor.dev/gvisor/pkg/bits/bits32.go deleted file mode 100644 index 28134a9e76..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/bits/bits32.go +++ /dev/null @@ -1,33 +0,0 @@ -package bits - -// IsOn returns true if *all* bits set in 'bits' are set in 'mask'. -func IsOn32(mask, bits uint32) bool { - return mask&bits == bits -} - -// IsAnyOn returns true if *any* bit set in 'bits' is set in 'mask'. -func IsAnyOn32(mask, bits uint32) bool { - return mask&bits != 0 -} - -// Mask returns a T with all of the given bits set. -func Mask32(is ...int) uint32 { - ret := uint32(0) - for _, i := range is { - ret |= MaskOf32(i) - } - return ret -} - -// MaskOf is like Mask, but sets only a single bit (more efficiently). -func MaskOf32(i int) uint32 { - return uint32(1) << uint32(i) -} - -// IsPowerOfTwo returns true if v is power of 2. -func IsPowerOfTwo32(v uint32) bool { - if v == 0 { - return false - } - return v&(v-1) == 0 -} diff --git a/vendor/gvisor.dev/gvisor/pkg/bits/bits64.go b/vendor/gvisor.dev/gvisor/pkg/bits/bits64.go deleted file mode 100644 index 73117b19b0..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/bits/bits64.go +++ /dev/null @@ -1,33 +0,0 @@ -package bits - -// IsOn returns true if *all* bits set in 'bits' are set in 'mask'. -func IsOn64(mask, bits uint64) bool { - return mask&bits == bits -} - -// IsAnyOn returns true if *any* bit set in 'bits' is set in 'mask'. -func IsAnyOn64(mask, bits uint64) bool { - return mask&bits != 0 -} - -// Mask returns a T with all of the given bits set. -func Mask64(is ...int) uint64 { - ret := uint64(0) - for _, i := range is { - ret |= MaskOf64(i) - } - return ret -} - -// MaskOf is like Mask, but sets only a single bit (more efficiently). -func MaskOf64(i int) uint64 { - return uint64(1) << uint64(i) -} - -// IsPowerOfTwo returns true if v is power of 2. -func IsPowerOfTwo64(v uint64) bool { - if v == 0 { - return false - } - return v&(v-1) == 0 -} diff --git a/vendor/gvisor.dev/gvisor/pkg/bits/bits_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/bits/bits_state_autogen.go deleted file mode 100644 index 436c111bda..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/bits/bits_state_autogen.go +++ /dev/null @@ -1,8 +0,0 @@ -// automatically generated by stateify. - -//go:build (amd64 || arm64) && !amd64 && !arm64 -// +build amd64 arm64 -// +build !amd64 -// +build !arm64 - -package bits diff --git a/vendor/gvisor.dev/gvisor/pkg/bits/uint64_arch.go b/vendor/gvisor.dev/gvisor/pkg/bits/uint64_arch.go deleted file mode 100644 index fc56341670..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/bits/uint64_arch.go +++ /dev/null @@ -1,37 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build amd64 || arm64 -// +build amd64 arm64 - -package bits - -// TrailingZeros64 returns the number of bits before the least significant 1 -// bit in x; in other words, it returns the index of the least significant 1 -// bit in x. If x is 0, TrailingZeros64 returns 64. -func TrailingZeros64(x uint64) int - -// MostSignificantOne64 returns the index of the most significant 1 bit in -// x. If x is 0, MostSignificantOne64 returns 64. -func MostSignificantOne64(x uint64) int - -// ForEachSetBit64 calls f once for each set bit in x, with argument i equal to -// the set bit's index. -func ForEachSetBit64(x uint64, f func(i int)) { - for x != 0 { - i := TrailingZeros64(x) - f(i) - x &^= MaskOf64(i) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/bits/uint64_arch_amd64_asm.s b/vendor/gvisor.dev/gvisor/pkg/bits/uint64_arch_amd64_asm.s deleted file mode 100644 index 2931b5d56b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/bits/uint64_arch_amd64_asm.s +++ /dev/null @@ -1,32 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build amd64 -// +build amd64 - -TEXT ·TrailingZeros64(SB),$0-16 - BSFQ x+0(FP), AX - JNZ end - MOVQ $64, AX -end: - MOVQ AX, ret+8(FP) - RET - -TEXT ·MostSignificantOne64(SB),$0-16 - BSRQ x+0(FP), AX - JNZ end - MOVQ $64, AX -end: - MOVQ AX, ret+8(FP) - RET diff --git a/vendor/gvisor.dev/gvisor/pkg/bits/uint64_arch_arm64_asm.s b/vendor/gvisor.dev/gvisor/pkg/bits/uint64_arch_arm64_asm.s deleted file mode 100644 index eb8d4d2802..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/bits/uint64_arch_arm64_asm.s +++ /dev/null @@ -1,34 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build arm64 -// +build arm64 - -TEXT ·TrailingZeros64(SB),$0-16 - MOVD x+0(FP), R0 - RBIT R0, R0 - CLZ R0, R0 // return 64 if x == 0 - MOVD R0, ret+8(FP) - RET - -TEXT ·MostSignificantOne64(SB),$0-16 - MOVD x+0(FP), R0 - CLZ R0, R0 // return 64 if x == 0 - MOVD $63, R1 - SUBS R0, R1, R0 // ret = 63 - CLZ - BPL end - MOVD $64, R0 // x == 0 -end: - MOVD R0, ret+8(FP) - RET diff --git a/vendor/gvisor.dev/gvisor/pkg/bits/uint64_arch_generic.go b/vendor/gvisor.dev/gvisor/pkg/bits/uint64_arch_generic.go deleted file mode 100644 index 83b23a3fc1..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/bits/uint64_arch_generic.go +++ /dev/null @@ -1,56 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build !amd64 && !arm64 -// +build !amd64,!arm64 - -package bits - -// TrailingZeros64 returns the number of bits before the least significant 1 -// bit in x; in other words, it returns the index of the least significant 1 -// bit in x. If x is 0, TrailingZeros64 returns 64. -func TrailingZeros64(x uint64) int { - if x == 0 { - return 64 - } - i := 0 - for ; x&1 == 0; i++ { - x >>= 1 - } - return i -} - -// MostSignificantOne64 returns the index of the most significant 1 bit in -// x. If x is 0, MostSignificantOne64 returns 64. -func MostSignificantOne64(x uint64) int { - if x == 0 { - return 64 - } - i := 63 - for ; x&(1<<63) == 0; i-- { - x <<= 1 - } - return i -} - -// ForEachSetBit64 calls f once for each set bit in x, with argument i equal to -// the set bit's index. -func ForEachSetBit64(x uint64, f func(i int)) { - for i := 0; x != 0; i++ { - if x&1 != 0 { - f(i) - } - x >>= 1 - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/buffer/buffer.go b/vendor/gvisor.dev/gvisor/pkg/buffer/buffer.go deleted file mode 100644 index 3e6bc6dd13..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/buffer/buffer.go +++ /dev/null @@ -1,657 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package buffer provides the implementation of a non-contiguous buffer that -// is reference counted, pooled, and copy-on-write. It allows O(1) append, -// and prepend operations. -package buffer - -import ( - "fmt" - "io" - - "gvisor.dev/gvisor/pkg/tcpip/checksum" -) - -// Buffer is a non-linear buffer. -// -// +stateify savable -type Buffer struct { - data ViewList `state:".([]byte)"` - size int64 -} - -func (b *Buffer) removeView(v *View) { - b.data.Remove(v) - v.Release() -} - -// MakeWithData creates a new Buffer initialized with given data. This function -// should be used with caution to avoid unnecessary []byte allocations. When in -// doubt use NewWithView to maximize chunk reuse. -func MakeWithData(b []byte) Buffer { - buf := Buffer{} - if len(b) == 0 { - return buf - } - v := NewViewWithData(b) - buf.Append(v) - return buf -} - -// MakeWithView creates a new Buffer initialized with given view. This function -// takes ownership of v. -func MakeWithView(v *View) Buffer { - if v == nil { - return Buffer{} - } - b := Buffer{ - size: int64(v.Size()), - } - if b.size == 0 { - v.Release() - return b - } - b.data.PushBack(v) - return b -} - -// Release frees all resources held by b. -func (b *Buffer) Release() { - for v := b.data.Front(); v != nil; v = b.data.Front() { - b.removeView(v) - } - b.size = 0 -} - -// TrimFront removes the first count bytes from the buffer. -func (b *Buffer) TrimFront(count int64) { - if count >= b.size { - b.advanceRead(b.size) - } else { - b.advanceRead(count) - } -} - -// ReadAt implements io.ReaderAt.ReadAt. -func (b *Buffer) ReadAt(p []byte, offset int64) (int, error) { - var ( - skipped int64 - done int64 - ) - for v := b.data.Front(); v != nil && done < int64(len(p)); v = v.Next() { - needToSkip := int(offset - skipped) - if sz := v.Size(); sz <= needToSkip { - skipped += int64(sz) - continue - } - - // Actually read data. - n := copy(p[done:], v.AsSlice()[needToSkip:]) - skipped += int64(needToSkip) - done += int64(n) - } - if int(done) < len(p) || offset+done == b.size { - return int(done), io.EOF - } - return int(done), nil -} - -// advanceRead advances the Buffer's read index. -// -// Precondition: there must be sufficient bytes in the buffer. -func (b *Buffer) advanceRead(count int64) { - for v := b.data.Front(); v != nil && count > 0; { - sz := int64(v.Size()) - if sz > count { - // There is still data for reading. - v.TrimFront(int(count)) - b.size -= count - count = 0 - return - } - - // Consume the whole view. - oldView := v - v = v.Next() // Iterate. - b.removeView(oldView) - - // Update counts. - count -= sz - b.size -= sz - } - if count > 0 { - panic(fmt.Sprintf("advanceRead still has %d bytes remaining", count)) - } -} - -// Truncate truncates the Buffer to the given length. -// -// This will not grow the Buffer, only shrink it. If a length is passed that is -// greater than the current size of the Buffer, then nothing will happen. -// -// Precondition: length must be >= 0. -func (b *Buffer) Truncate(length int64) { - if length < 0 { - panic("negative length provided") - } - if length >= b.size { - return // Nothing to do. - } - for v := b.data.Back(); v != nil && b.size > length; v = b.data.Back() { - sz := int64(v.Size()) - if after := b.size - sz; after < length { - // Truncate the buffer locally. - left := (length - after) - v.write = v.read + int(left) - b.size = length - break - } - - // Drop the buffer completely; see above. - b.removeView(v) - b.size -= sz - } -} - -// GrowTo grows the given Buffer to the number of bytes, which will be appended. -// If zero is true, all these bytes will be zero. If zero is false, then this is -// the caller's responsibility. -// -// Precondition: length must be >= 0. -func (b *Buffer) GrowTo(length int64, zero bool) { - if length < 0 { - panic("negative length provided") - } - for b.size < length { - v := b.data.Back() - - // Is there some space in the last buffer? - if v.Full() { - v = NewView(int(length - b.size)) - b.data.PushBack(v) - } - - // Write up to length bytes. - sz := v.AvailableSize() - if int64(sz) > length-b.size { - sz = int(length - b.size) - } - - // Zero the written section. - if zero { - clear(v.chunk.data[v.write : v.write+sz]) - } - - // Advance the index. - v.Grow(sz) - b.size += int64(sz) - } -} - -// Prepend prepends the given data. Prepend takes ownership of src. -func (b *Buffer) Prepend(src *View) error { - if src == nil { - return nil - } - if src.Size() == 0 { - src.Release() - return nil - } - // If the first buffer does not have room just prepend the view. - v := b.data.Front() - if v == nil || v.read == 0 { - b.prependOwned(src) - return nil - } - - // If there's room at the front and we won't incur a copy by writing to this - // view, fill in the extra room first. - if !v.sharesChunk() { - avail := v.read - vStart := 0 - srcStart := src.Size() - avail - if avail > src.Size() { - vStart = avail - src.Size() - srcStart = 0 - } - // Save the write index and restore it after. - old := v.write - v.read = vStart - n, err := v.WriteAt(src.AsSlice()[srcStart:], 0) - if err != nil { - return fmt.Errorf("could not write to view during append: %w", err) - } - b.size += int64(n) - v.write = old - src.write = srcStart - - // If there's no more to be written, then we're done. - if src.Size() == 0 { - src.Release() - return nil - } - } - - // Otherwise, just prepend the view. - b.prependOwned(src) - return nil -} - -// Append appends the given data. Append takes ownership of src. -func (b *Buffer) Append(src *View) error { - if src == nil { - return nil - } - if src.Size() == 0 { - src.Release() - return nil - } - // If the last buffer is full, just append the view. - v := b.data.Back() - if v.Full() { - b.appendOwned(src) - return nil - } - - // If a write won't incur a copy, then fill the back of the existing last - // chunk. - if !v.sharesChunk() { - writeSz := src.Size() - if src.Size() > v.AvailableSize() { - writeSz = v.AvailableSize() - } - done, err := v.Write(src.AsSlice()[:writeSz]) - if err != nil { - return fmt.Errorf("could not write to view during append: %w", err) - } - src.TrimFront(done) - b.size += int64(done) - if src.Size() == 0 { - src.Release() - return nil - } - } - - // If there is still data left just append the src. - b.appendOwned(src) - return nil -} - -func (b *Buffer) appendOwned(v *View) { - b.data.PushBack(v) - b.size += int64(v.Size()) -} - -func (b *Buffer) prependOwned(v *View) { - b.data.PushFront(v) - b.size += int64(v.Size()) -} - -// PullUp makes the specified range contiguous and returns the backing memory. -func (b *Buffer) PullUp(offset, length int) (View, bool) { - if length == 0 { - return View{}, true - } - tgt := Range{begin: offset, end: offset + length} - if tgt.Intersect(Range{end: int(b.size)}).Len() != length { - return View{}, false - } - - curr := Range{} - v := b.data.Front() - for ; v != nil; v = v.Next() { - origLen := v.Size() - curr.end = curr.begin + origLen - - if x := curr.Intersect(tgt); x.Len() == tgt.Len() { - // buf covers the whole requested target range. - sub := x.Offset(-curr.begin) - // Don't increment the reference count of the underlying chunk. Views - // returned by PullUp are explicitly unowned and read only - new := View{ - read: v.read + sub.begin, - write: v.read + sub.end, - chunk: v.chunk, - } - return new, true - } else if x.Len() > 0 { - // buf is pointing at the starting buffer we want to merge. - break - } - - curr.begin += origLen - } - - // Calculate the total merged length. - totLen := 0 - for n := v; n != nil; n = n.Next() { - totLen += n.Size() - if curr.begin+totLen >= tgt.end { - break - } - } - - // Merge the buffers. - merged := NewViewSize(totLen) - off := 0 - for n := v; n != nil && off < totLen; { - merged.WriteAt(n.AsSlice(), off) - off += n.Size() - - // Remove buffers except for the first one, which will be reused. - if n == v { - n = n.Next() - } else { - old := n - n = n.Next() - b.removeView(old) - } - } - // Make data the first buffer. - b.data.InsertBefore(v, merged) - b.removeView(v) - - r := tgt.Offset(-curr.begin) - pulled := View{ - read: r.begin, - write: r.end, - chunk: merged.chunk, - } - return pulled, true -} - -// Flatten returns a flattened copy of this data. -// -// This method should not be used in any performance-sensitive paths. It may -// allocate a fresh byte slice sufficiently large to contain all the data in -// the buffer. This is principally for debugging. -// -// N.B. Tee data still belongs to this Buffer, as if there is a single buffer -// present, then it will be returned directly. This should be used for -// temporary use only, and a reference to the given slice should not be held. -func (b *Buffer) Flatten() []byte { - if v := b.data.Front(); v == nil { - return nil // No data at all. - } - data := make([]byte, 0, b.size) // Need to flatten. - for v := b.data.Front(); v != nil; v = v.Next() { - // Copy to the allocated slice. - data = append(data, v.AsSlice()...) - } - return data -} - -// Size indicates the total amount of data available in this Buffer. -func (b *Buffer) Size() int64 { - return b.size -} - -// AsViewList returns the ViewList backing b. Users may not save or modify the -// ViewList returned. -func (b *Buffer) AsViewList() ViewList { - return b.data -} - -// Clone creates a copy-on-write clone of b. The underlying chunks are shared -// until they are written to. -func (b *Buffer) Clone() Buffer { - other := Buffer{ - size: b.size, - } - for v := b.data.Front(); v != nil; v = v.Next() { - newView := v.Clone() - other.data.PushBack(newView) - } - return other -} - -// DeepClone creates a deep clone of b, copying data such that no bytes are -// shared with any other Buffers. -func (b *Buffer) DeepClone() Buffer { - newBuf := Buffer{} - buf := b.Clone() - reader := buf.AsBufferReader() - newBuf.WriteFromReader(&reader, b.size) - return newBuf -} - -// Apply applies the given function across all valid data. -func (b *Buffer) Apply(fn func(*View)) { - for v := b.data.Front(); v != nil; v = v.Next() { - d := v.Clone() - fn(d) - d.Release() - } -} - -// SubApply applies fn to a given range of data in b. Any part of the range -// outside of b is ignored. -func (b *Buffer) SubApply(offset, length int, fn func(*View)) { - for v := b.data.Front(); length > 0 && v != nil; v = v.Next() { - if offset >= v.Size() { - offset -= v.Size() - continue - } - d := v.Clone() - if offset > 0 { - d.TrimFront(offset) - offset = 0 - } - if length < d.Size() { - d.write = d.read + length - } - fn(d) - length -= d.Size() - d.Release() - } -} - -// Checksum calculates a checksum over the buffer's payload starting at offset. -func (b *Buffer) Checksum(offset int) uint16 { - if offset >= int(b.size) { - return 0 - } - var v *View - for v = b.data.Front(); v != nil && offset >= v.Size(); v = v.Next() { - offset -= v.Size() - } - - var cs checksum.Checksumer - cs.Add(v.AsSlice()[offset:]) - for v = v.Next(); v != nil; v = v.Next() { - cs.Add(v.AsSlice()) - } - return cs.Checksum() -} - -// Merge merges the provided Buffer with this one. -// -// The other Buffer will be appended to v, and other will be empty after this -// operation completes. -func (b *Buffer) Merge(other *Buffer) { - b.data.PushBackList(&other.data) - other.data = ViewList{} - - // Adjust sizes. - b.size += other.size - other.size = 0 -} - -// WriteFromReader writes to the buffer from an io.Reader. A maximum read size -// of MaxChunkSize is enforced to prevent allocating views from the heap. -func (b *Buffer) WriteFromReader(r io.Reader, count int64) (int64, error) { - return b.WriteFromReaderAndLimitedReader(r, count, nil) -} - -// WriteFromReaderAndLimitedReader is the same as WriteFromReader, but -// optimized to avoid allocations if a LimitedReader is passed in. -// -// This function clobbers the values of lr. -func (b *Buffer) WriteFromReaderAndLimitedReader(r io.Reader, count int64, lr *io.LimitedReader) (int64, error) { - if lr == nil { - lr = &io.LimitedReader{} - } - - var done int64 - for done < count { - vsize := count - done - if vsize > MaxChunkSize { - vsize = MaxChunkSize - } - v := NewView(int(vsize)) - lr.R = r - lr.N = vsize - n, err := io.Copy(v, lr) - b.Append(v) - done += n - if err == io.EOF { - break - } - if err != nil { - return done, err - } - } - return done, nil -} - -// ReadToWriter reads from the buffer into an io.Writer. -// -// N.B. This does not consume the bytes read. TrimFront should -// be called appropriately after this call in order to do so. -func (b *Buffer) ReadToWriter(w io.Writer, count int64) (int64, error) { - bytesLeft := int(count) - for v := b.data.Front(); v != nil && bytesLeft > 0; v = v.Next() { - view := v.Clone() - if view.Size() > bytesLeft { - view.CapLength(bytesLeft) - } - n, err := io.Copy(w, view) - bytesLeft -= int(n) - view.Release() - if err != nil { - return count - int64(bytesLeft), err - } - } - return count - int64(bytesLeft), nil -} - -// read implements the io.Reader interface. This method is used by BufferReader -// to consume its underlying buffer. To perform io operations on buffers -// directly, use ReadToWriter or WriteToReader. -func (b *Buffer) read(p []byte) (int, error) { - if len(p) == 0 { - return 0, nil - } - if b.Size() == 0 { - return 0, io.EOF - } - done := 0 - v := b.data.Front() - for v != nil && done < len(p) { - n, err := v.Read(p[done:]) - done += n - next := v.Next() - if v.Size() == 0 { - b.removeView(v) - } - b.size -= int64(n) - if err != nil && err != io.EOF { - return done, err - } - v = next - } - return done, nil -} - -// readByte implements the io.ByteReader interface. This method is used by -// BufferReader to consume its underlying buffer. To perform io operations on -// buffers directly, use ReadToWriter or WriteToReader. -func (b *Buffer) readByte() (byte, error) { - if b.Size() == 0 { - return 0, io.EOF - } - v := b.data.Front() - bt := v.AsSlice()[0] - b.TrimFront(1) - return bt, nil -} - -// AsBufferReader returns the Buffer as a BufferReader capable of io methods. -// The new BufferReader takes ownership of b. -func (b *Buffer) AsBufferReader() BufferReader { - return BufferReader{b} -} - -// BufferReader implements io methods on Buffer. Users must call Close() -// when finished with the buffer to free the underlying memory. -type BufferReader struct { - b *Buffer -} - -// Read implements the io.Reader interface. -func (br *BufferReader) Read(p []byte) (int, error) { - return br.b.read(p) -} - -// ReadByte implements the io.ByteReader interface. -func (br *BufferReader) ReadByte() (byte, error) { - return br.b.readByte() -} - -// Close implements the io.Closer interface. -func (br *BufferReader) Close() { - br.b.Release() -} - -// Len returns the number of bytes in the unread portion of the buffer. -func (br *BufferReader) Len() int { - return int(br.b.Size()) -} - -// Range specifies a range of buffer. -type Range struct { - begin int - end int -} - -// Intersect returns the intersection of x and y. -func (x Range) Intersect(y Range) Range { - if x.begin < y.begin { - x.begin = y.begin - } - if x.end > y.end { - x.end = y.end - } - if x.begin >= x.end { - return Range{} - } - return x -} - -// Offset returns x offset by off. -func (x Range) Offset(off int) Range { - x.begin += off - x.end += off - return x -} - -// Len returns the length of x. -func (x Range) Len() int { - l := x.end - x.begin - if l < 0 { - l = 0 - } - return l -} diff --git a/vendor/gvisor.dev/gvisor/pkg/buffer/buffer_state.go b/vendor/gvisor.dev/gvisor/pkg/buffer/buffer_state.go deleted file mode 100644 index d57dfa022e..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/buffer/buffer_state.go +++ /dev/null @@ -1,29 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package buffer - -import ( - "context" -) - -// saveData is invoked by stateify. -func (b *Buffer) saveData() []byte { - return b.Flatten() -} - -// loadData is invoked by stateify. -func (b *Buffer) loadData(_ context.Context, data []byte) { - *b = MakeWithData(data) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/buffer/buffer_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/buffer/buffer_state_autogen.go deleted file mode 100644 index 3e32338fe4..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/buffer/buffer_state_autogen.go +++ /dev/null @@ -1,187 +0,0 @@ -// automatically generated by stateify. - -package buffer - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (b *Buffer) StateTypeName() string { - return "pkg/buffer.Buffer" -} - -func (b *Buffer) StateFields() []string { - return []string{ - "data", - "size", - } -} - -func (b *Buffer) beforeSave() {} - -// +checklocksignore -func (b *Buffer) StateSave(stateSinkObject state.Sink) { - b.beforeSave() - var dataValue []byte - dataValue = b.saveData() - stateSinkObject.SaveValue(0, dataValue) - stateSinkObject.Save(1, &b.size) -} - -func (b *Buffer) afterLoad(context.Context) {} - -// +checklocksignore -func (b *Buffer) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(1, &b.size) - stateSourceObject.LoadValue(0, new([]byte), func(y any) { b.loadData(ctx, y.([]byte)) }) -} - -func (c *chunk) StateTypeName() string { - return "pkg/buffer.chunk" -} - -func (c *chunk) StateFields() []string { - return []string{ - "chunkRefs", - "data", - } -} - -func (c *chunk) beforeSave() {} - -// +checklocksignore -func (c *chunk) StateSave(stateSinkObject state.Sink) { - c.beforeSave() - stateSinkObject.Save(0, &c.chunkRefs) - stateSinkObject.Save(1, &c.data) -} - -func (c *chunk) afterLoad(context.Context) {} - -// +checklocksignore -func (c *chunk) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &c.chunkRefs) - stateSourceObject.Load(1, &c.data) -} - -func (r *chunkRefs) StateTypeName() string { - return "pkg/buffer.chunkRefs" -} - -func (r *chunkRefs) StateFields() []string { - return []string{ - "refCount", - } -} - -func (r *chunkRefs) beforeSave() {} - -// +checklocksignore -func (r *chunkRefs) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.refCount) -} - -// +checklocksignore -func (r *chunkRefs) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.refCount) - stateSourceObject.AfterLoad(func() { r.afterLoad(ctx) }) -} - -func (v *View) StateTypeName() string { - return "pkg/buffer.View" -} - -func (v *View) StateFields() []string { - return []string{ - "read", - "write", - "chunk", - } -} - -func (v *View) beforeSave() {} - -// +checklocksignore -func (v *View) StateSave(stateSinkObject state.Sink) { - v.beforeSave() - stateSinkObject.Save(0, &v.read) - stateSinkObject.Save(1, &v.write) - stateSinkObject.Save(2, &v.chunk) -} - -func (v *View) afterLoad(context.Context) {} - -// +checklocksignore -func (v *View) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &v.read) - stateSourceObject.Load(1, &v.write) - stateSourceObject.Load(2, &v.chunk) -} - -func (l *ViewList) StateTypeName() string { - return "pkg/buffer.ViewList" -} - -func (l *ViewList) StateFields() []string { - return []string{ - "head", - "tail", - } -} - -func (l *ViewList) beforeSave() {} - -// +checklocksignore -func (l *ViewList) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.head) - stateSinkObject.Save(1, &l.tail) -} - -func (l *ViewList) afterLoad(context.Context) {} - -// +checklocksignore -func (l *ViewList) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.head) - stateSourceObject.Load(1, &l.tail) -} - -func (e *ViewEntry) StateTypeName() string { - return "pkg/buffer.ViewEntry" -} - -func (e *ViewEntry) StateFields() []string { - return []string{ - "next", - "prev", - } -} - -func (e *ViewEntry) beforeSave() {} - -// +checklocksignore -func (e *ViewEntry) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.next) - stateSinkObject.Save(1, &e.prev) -} - -func (e *ViewEntry) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ViewEntry) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.next) - stateSourceObject.Load(1, &e.prev) -} - -func init() { - state.Register((*Buffer)(nil)) - state.Register((*chunk)(nil)) - state.Register((*chunkRefs)(nil)) - state.Register((*View)(nil)) - state.Register((*ViewList)(nil)) - state.Register((*ViewEntry)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/buffer/buffer_unsafe_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/buffer/buffer_unsafe_state_autogen.go deleted file mode 100644 index 5a5c407227..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/buffer/buffer_unsafe_state_autogen.go +++ /dev/null @@ -1,3 +0,0 @@ -// automatically generated by stateify. - -package buffer diff --git a/vendor/gvisor.dev/gvisor/pkg/buffer/chunk.go b/vendor/gvisor.dev/gvisor/pkg/buffer/chunk.go deleted file mode 100644 index a58eed024c..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/buffer/chunk.go +++ /dev/null @@ -1,113 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package buffer - -import ( - "fmt" - - "gvisor.dev/gvisor/pkg/bits" - "gvisor.dev/gvisor/pkg/sync" -) - -const ( - // This is log2(baseChunkSize). This number is used to calculate which pool - // to use for a payload size by right shifting the payload size by this - // number and passing the result to MostSignificantOne64. - baseChunkSizeLog2 = 6 - - // This is the size of the buffers in the first pool. Each subsequent pool - // creates payloads 2^(pool index) times larger than the first pool's - // payloads. - baseChunkSize = 1 << baseChunkSizeLog2 // 64 - - // MaxChunkSize is largest payload size that we pool. Payloads larger than - // this will be allocated from the heap and garbage collected as normal. - MaxChunkSize = baseChunkSize << (numPools - 1) // 64k - - // The number of chunk pools we have for use. - numPools = 11 -) - -// chunkPools is a collection of pools for payloads of different sizes. The -// size of the payloads doubles in each successive pool. -var chunkPools [numPools]sync.Pool - -func init() { - for i := 0; i < numPools; i++ { - chunkSize := baseChunkSize * (1 << i) - chunkPools[i].New = func() any { - return &chunk{ - data: make([]byte, chunkSize), - } - } - } -} - -// Precondition: 0 <= size <= maxChunkSize -func getChunkPool(size int) *sync.Pool { - idx := 0 - if size > baseChunkSize { - idx = bits.MostSignificantOne64(uint64(size) >> baseChunkSizeLog2) - if size > 1<<(idx+baseChunkSizeLog2) { - idx++ - } - } - if idx >= numPools { - panic(fmt.Sprintf("pool for chunk size %d does not exist", size)) - } - return &chunkPools[idx] -} - -// Chunk represents a slice of pooled memory. -// -// +stateify savable -type chunk struct { - chunkRefs - data []byte -} - -func newChunk(size int) *chunk { - var c *chunk - if size > MaxChunkSize { - c = &chunk{ - data: make([]byte, size), - } - } else { - pool := getChunkPool(size) - c = pool.Get().(*chunk) - clear(c.data) - } - c.InitRefs() - return c -} - -func (c *chunk) destroy() { - if len(c.data) > MaxChunkSize { - c.data = nil - return - } - pool := getChunkPool(len(c.data)) - pool.Put(c) -} - -func (c *chunk) DecRef() { - c.chunkRefs.DecRef(c.destroy) -} - -func (c *chunk) Clone() *chunk { - cpy := newChunk(len(c.data)) - copy(cpy.data, c.data) - return cpy -} diff --git a/vendor/gvisor.dev/gvisor/pkg/buffer/chunk_refs.go b/vendor/gvisor.dev/gvisor/pkg/buffer/chunk_refs.go deleted file mode 100644 index fa0606dbd1..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/buffer/chunk_refs.go +++ /dev/null @@ -1,142 +0,0 @@ -package buffer - -import ( - "context" - "fmt" - - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/refs" -) - -// enableLogging indicates whether reference-related events should be logged (with -// stack traces). This is false by default and should only be set to true for -// debugging purposes, as it can generate an extremely large amount of output -// and drastically degrade performance. -const chunkenableLogging = false - -// obj is used to customize logging. Note that we use a pointer to T so that -// we do not copy the entire object when passed as a format parameter. -var chunkobj *chunk - -// Refs implements refs.RefCounter. It keeps a reference count using atomic -// operations and calls the destructor when the count reaches zero. -// -// NOTE: Do not introduce additional fields to the Refs struct. It is used by -// many filesystem objects, and we want to keep it as small as possible (i.e., -// the same size as using an int64 directly) to avoid taking up extra cache -// space. In general, this template should not be extended at the cost of -// performance. If it does not offer enough flexibility for a particular object -// (example: b/187877947), we should implement the RefCounter/CheckedObject -// interfaces manually. -// -// +stateify savable -type chunkRefs struct { - // refCount is composed of two fields: - // - // [32-bit speculative references]:[32-bit real references] - // - // Speculative references are used for TryIncRef, to avoid a CompareAndSwap - // loop. See IncRef, DecRef and TryIncRef for details of how these fields are - // used. - refCount atomicbitops.Int64 -} - -// InitRefs initializes r with one reference and, if enabled, activates leak -// checking. -func (r *chunkRefs) InitRefs() { - - r.refCount.RacyStore(1) - refs.Register(r) -} - -// RefType implements refs.CheckedObject.RefType. -func (r *chunkRefs) RefType() string { - return fmt.Sprintf("%T", chunkobj)[1:] -} - -// LeakMessage implements refs.CheckedObject.LeakMessage. -func (r *chunkRefs) LeakMessage() string { - return fmt.Sprintf("[%s %p] reference count of %d instead of 0", r.RefType(), r, r.ReadRefs()) -} - -// LogRefs implements refs.CheckedObject.LogRefs. -func (r *chunkRefs) LogRefs() bool { - return chunkenableLogging -} - -// ReadRefs returns the current number of references. The returned count is -// inherently racy and is unsafe to use without external synchronization. -func (r *chunkRefs) ReadRefs() int64 { - return r.refCount.Load() -} - -// IncRef implements refs.RefCounter.IncRef. -// -//go:nosplit -func (r *chunkRefs) IncRef() { - v := r.refCount.Add(1) - if chunkenableLogging { - refs.LogIncRef(r, v) - } - if v <= 1 { - panic(fmt.Sprintf("Incrementing non-positive count %p on %s", r, r.RefType())) - } -} - -// TryIncRef implements refs.TryRefCounter.TryIncRef. -// -// To do this safely without a loop, a speculative reference is first acquired -// on the object. This allows multiple concurrent TryIncRef calls to distinguish -// other TryIncRef calls from genuine references held. -// -//go:nosplit -func (r *chunkRefs) TryIncRef() bool { - const speculativeRef = 1 << 32 - if v := r.refCount.Add(speculativeRef); int32(v) == 0 { - - r.refCount.Add(-speculativeRef) - return false - } - - v := r.refCount.Add(-speculativeRef + 1) - if chunkenableLogging { - refs.LogTryIncRef(r, v) - } - return true -} - -// DecRef implements refs.RefCounter.DecRef. -// -// Note that speculative references are counted here. Since they were added -// prior to real references reaching zero, they will successfully convert to -// real references. In other words, we see speculative references only in the -// following case: -// -// A: TryIncRef [speculative increase => sees non-negative references] -// B: DecRef [real decrease] -// A: TryIncRef [transform speculative to real] -// -//go:nosplit -func (r *chunkRefs) DecRef(destroy func()) { - v := r.refCount.Add(-1) - if chunkenableLogging { - refs.LogDecRef(r, v) - } - switch { - case v < 0: - panic(fmt.Sprintf("Decrementing non-positive ref count %p, owned by %s", r, r.RefType())) - - case v == 0: - refs.Unregister(r) - - if destroy != nil { - destroy() - } - } -} - -func (r *chunkRefs) afterLoad(context.Context) { - if r.ReadRefs() > 0 { - refs.Register(r) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/buffer/view.go b/vendor/gvisor.dev/gvisor/pkg/buffer/view.go deleted file mode 100644 index 6c8d17eff7..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/buffer/view.go +++ /dev/null @@ -1,366 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package buffer - -import ( - "fmt" - "io" - - "gvisor.dev/gvisor/pkg/sync" -) - -// ReadSize is the default amount that a View's size is increased by when an -// io.Reader has more data than a View can hold during calls to ReadFrom. -const ReadSize = 512 - -var viewPool = sync.Pool{ - New: func() any { - return &View{} - }, -} - -// View is a window into a shared chunk. Views are held by Buffers in -// viewLists to represent contiguous memory. -// -// A View must be created with NewView, NewViewWithData, or Clone. Owners are -// responsible for maintaining ownership over their views. When Views need to be -// shared or copied, the owner should create a new View with Clone. Clone must -// only ever be called on a owned View, not a borrowed one. -// -// Users are responsible for calling Release when finished with their View so -// that its resources can be returned to the pool. -// -// Users must not write directly to slices returned by AsSlice. Instead, they -// must use Write/WriteAt/CopyIn to modify the underlying View. This preserves -// the safety guarantees of copy-on-write. -// -// +stateify savable -type View struct { - ViewEntry `state:"nosave"` - read int - write int - chunk *chunk -} - -// NewView creates a new view with capacity at least as big as cap. It is -// analogous to make([]byte, 0, cap). -func NewView(cap int) *View { - c := newChunk(cap) - v := viewPool.Get().(*View) - *v = View{chunk: c} - return v -} - -// NewViewSize creates a new view with capacity at least as big as size and -// length that is exactly size. It is analogous to make([]byte, size). -func NewViewSize(size int) *View { - v := NewView(size) - v.Grow(size) - return v -} - -// NewViewWithData creates a new view and initializes it with data. This -// function should be used with caution to avoid unnecessary []byte allocations. -// When in doubt use NewWithView to maximize chunk reuse in production -// environments. -func NewViewWithData(data []byte) *View { - c := newChunk(len(data)) - v := viewPool.Get().(*View) - *v = View{chunk: c} - v.Write(data) - return v -} - -// Clone creates a shallow clone of v where the underlying chunk is shared. -// -// The caller must own the View to call Clone. It is not safe to call Clone -// on a borrowed or shared View because it can race with other View methods. -func (v *View) Clone() *View { - if v == nil { - panic("cannot clone a nil view") - } - v.chunk.IncRef() - newV := viewPool.Get().(*View) - newV.chunk = v.chunk - newV.read = v.read - newV.write = v.write - return newV -} - -// Release releases the chunk held by v and returns v to the pool. -func (v *View) Release() { - if v == nil { - panic("cannot release a nil view") - } - v.chunk.DecRef() - *v = View{} - viewPool.Put(v) -} - -// Reset sets the view's read and write indices back to zero. -func (v *View) Reset() { - if v == nil { - panic("cannot reset a nil view") - } - v.read = 0 - v.write = 0 -} - -func (v *View) sharesChunk() bool { - return v.chunk.refCount.Load() > 1 -} - -// Full indicates the chunk is full. -// -// This indicates there is no capacity left to write. -func (v *View) Full() bool { - return v == nil || v.write == len(v.chunk.data) -} - -// Capacity returns the total size of this view's chunk. -func (v *View) Capacity() int { - if v == nil { - return 0 - } - return len(v.chunk.data) -} - -// Size returns the size of data written to the view. -func (v *View) Size() int { - if v == nil { - return 0 - } - return v.write - v.read -} - -// TrimFront advances the read index by the given amount. -func (v *View) TrimFront(n int) { - if v.read+n > v.write { - panic("cannot trim past the end of a view") - } - v.read += n -} - -// AsSlice returns a slice of the data written to this view. -func (v *View) AsSlice() []byte { - if v.Size() == 0 { - return nil - } - return v.chunk.data[v.read:v.write] -} - -// ToSlice returns an owned copy of the data in this view. -func (v *View) ToSlice() []byte { - if v.Size() == 0 { - return nil - } - s := make([]byte, v.Size()) - copy(s, v.AsSlice()) - return s -} - -// AvailableSize returns the number of bytes available for writing. -func (v *View) AvailableSize() int { - if v == nil { - return 0 - } - return len(v.chunk.data) - v.write -} - -// Read reads v's data into p. -// -// Implements the io.Reader interface. -func (v *View) Read(p []byte) (int, error) { - if len(p) == 0 { - return 0, nil - } - if v.Size() == 0 { - return 0, io.EOF - } - n := copy(p, v.AsSlice()) - v.TrimFront(n) - return n, nil -} - -// ReadByte implements the io.ByteReader interface. -func (v *View) ReadByte() (byte, error) { - if v.Size() == 0 { - return 0, io.EOF - } - b := v.AsSlice()[0] - v.read++ - return b, nil -} - -// WriteTo writes data to w until the view is empty or an error occurs. The -// return value n is the number of bytes written. -// -// WriteTo implements the io.WriterTo interface. -func (v *View) WriteTo(w io.Writer) (n int64, err error) { - if v.Size() > 0 { - sz := v.Size() - m, e := w.Write(v.AsSlice()) - v.TrimFront(m) - n = int64(m) - if e != nil { - return n, e - } - if m != sz { - return n, io.ErrShortWrite - } - } - return n, nil -} - -// ReadAt reads data to the p starting at offset. -// -// Implements the io.ReaderAt interface. -func (v *View) ReadAt(p []byte, off int) (int, error) { - if off < 0 || off > v.Size() { - return 0, fmt.Errorf("ReadAt(): offset out of bounds: want 0 < off < %d, got off=%d", v.Size(), off) - } - n := copy(p, v.AsSlice()[off:]) - return n, nil -} - -// Write writes data to the view's chunk starting at the v.write index. If the -// view's chunk has a reference count greater than 1, the chunk is copied first -// and then written to. -// -// Implements the io.Writer interface. -func (v *View) Write(p []byte) (int, error) { - if v == nil { - panic("cannot write to a nil view") - } - if v.AvailableSize() < len(p) { - v.growCap(len(p) - v.AvailableSize()) - } else if v.sharesChunk() { - defer v.chunk.DecRef() - v.chunk = v.chunk.Clone() - } - n := copy(v.chunk.data[v.write:], p) - v.write += n - if n < len(p) { - return n, io.ErrShortWrite - } - return n, nil -} - -// ReadFrom reads data from r until EOF and appends it to the buffer, growing -// the buffer as needed. The return value n is the number of bytes read. Any -// error except io.EOF encountered during the read is also returned. -// -// ReadFrom implements the io.ReaderFrom interface. -func (v *View) ReadFrom(r io.Reader) (n int64, err error) { - if v == nil { - panic("cannot write to a nil view") - } - if v.sharesChunk() { - defer v.chunk.DecRef() - v.chunk = v.chunk.Clone() - } - for { - // Check for EOF to avoid an unnnecesary allocation. - if _, e := r.Read(nil); e == io.EOF { - return n, nil - } - if v.AvailableSize() == 0 { - v.growCap(ReadSize) - } - m, e := r.Read(v.availableSlice()) - v.write += m - n += int64(m) - - if e == io.EOF { - return n, nil - } - if e != nil { - return n, e - } - } -} - -// WriteAt writes data to the views's chunk starting at start. If the -// view's chunk has a reference count greater than 1, the chunk is copied first -// and then written to. -// -// Implements the io.WriterAt interface. -func (v *View) WriteAt(p []byte, off int) (int, error) { - if v == nil { - panic("cannot write to a nil view") - } - if off < 0 || off > v.Size() { - return 0, fmt.Errorf("write offset out of bounds: want 0 < off < %d, got off=%d", v.Size(), off) - } - if v.sharesChunk() { - defer v.chunk.DecRef() - v.chunk = v.chunk.Clone() - } - n := copy(v.AsSlice()[off:], p) - if n < len(p) { - return n, io.ErrShortWrite - } - return n, nil -} - -// Grow increases the size of the view. If the new size is greater than the -// view's current capacity, Grow will reallocate the view with an increased -// capacity. -func (v *View) Grow(n int) { - if v == nil { - panic("cannot grow a nil view") - } - if v.write+n > v.Capacity() { - v.growCap(n) - } - v.write += n -} - -// growCap increases the capacity of the view by at least n. -func (v *View) growCap(n int) { - if v == nil { - panic("cannot grow a nil view") - } - defer v.chunk.DecRef() - old := v.AsSlice() - v.chunk = newChunk(v.Capacity() + n) - copy(v.chunk.data, old) - v.read = 0 - v.write = len(old) -} - -// CapLength caps the length of the view's read slice to n. If n > v.Size(), -// the function is a no-op. -func (v *View) CapLength(n int) { - if v == nil { - panic("cannot resize a nil view") - } - if n < 0 { - panic("n must be >= 0") - } - if n > v.Size() { - n = v.Size() - } - v.write = v.read + n -} - -func (v *View) availableSlice() []byte { - if v.sharesChunk() { - defer v.chunk.DecRef() - c := v.chunk.Clone() - v.chunk = c - } - return v.chunk.data[v.write:] -} diff --git a/vendor/gvisor.dev/gvisor/pkg/buffer/view_list.go b/vendor/gvisor.dev/gvisor/pkg/buffer/view_list.go deleted file mode 100644 index db855dfdfe..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/buffer/view_list.go +++ /dev/null @@ -1,239 +0,0 @@ -package buffer - -// ElementMapper provides an identity mapping by default. -// -// This can be replaced to provide a struct that maps elements to linker -// objects, if they are not the same. An ElementMapper is not typically -// required if: Linker is left as is, Element is left as is, or Linker and -// Element are the same type. -type ViewElementMapper struct{} - -// linkerFor maps an Element to a Linker. -// -// This default implementation should be inlined. -// -//go:nosplit -func (ViewElementMapper) linkerFor(elem *View) *View { return elem } - -// List is an intrusive list. Entries can be added to or removed from the list -// in O(1) time and with no additional memory allocations. -// -// The zero value for List is an empty list ready to use. -// -// To iterate over a list (where l is a List): -// -// for e := l.Front(); e != nil; e = e.Next() { -// // do something with e. -// } -// -// +stateify savable -type ViewList struct { - head *View - tail *View -} - -// Reset resets list l to the empty state. -func (l *ViewList) Reset() { - l.head = nil - l.tail = nil -} - -// Empty returns true iff the list is empty. -// -//go:nosplit -func (l *ViewList) Empty() bool { - return l.head == nil -} - -// Front returns the first element of list l or nil. -// -//go:nosplit -func (l *ViewList) Front() *View { - return l.head -} - -// Back returns the last element of list l or nil. -// -//go:nosplit -func (l *ViewList) Back() *View { - return l.tail -} - -// Len returns the number of elements in the list. -// -// NOTE: This is an O(n) operation. -// -//go:nosplit -func (l *ViewList) Len() (count int) { - for e := l.Front(); e != nil; e = (ViewElementMapper{}.linkerFor(e)).Next() { - count++ - } - return count -} - -// PushFront inserts the element e at the front of list l. -// -//go:nosplit -func (l *ViewList) PushFront(e *View) { - linker := ViewElementMapper{}.linkerFor(e) - linker.SetNext(l.head) - linker.SetPrev(nil) - if l.head != nil { - ViewElementMapper{}.linkerFor(l.head).SetPrev(e) - } else { - l.tail = e - } - - l.head = e -} - -// PushFrontList inserts list m at the start of list l, emptying m. -// -//go:nosplit -func (l *ViewList) PushFrontList(m *ViewList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - ViewElementMapper{}.linkerFor(l.head).SetPrev(m.tail) - ViewElementMapper{}.linkerFor(m.tail).SetNext(l.head) - - l.head = m.head - } - m.head = nil - m.tail = nil -} - -// PushBack inserts the element e at the back of list l. -// -//go:nosplit -func (l *ViewList) PushBack(e *View) { - linker := ViewElementMapper{}.linkerFor(e) - linker.SetNext(nil) - linker.SetPrev(l.tail) - if l.tail != nil { - ViewElementMapper{}.linkerFor(l.tail).SetNext(e) - } else { - l.head = e - } - - l.tail = e -} - -// PushBackList inserts list m at the end of list l, emptying m. -// -//go:nosplit -func (l *ViewList) PushBackList(m *ViewList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - ViewElementMapper{}.linkerFor(l.tail).SetNext(m.head) - ViewElementMapper{}.linkerFor(m.head).SetPrev(l.tail) - - l.tail = m.tail - } - m.head = nil - m.tail = nil -} - -// InsertAfter inserts e after b. -// -//go:nosplit -func (l *ViewList) InsertAfter(b, e *View) { - bLinker := ViewElementMapper{}.linkerFor(b) - eLinker := ViewElementMapper{}.linkerFor(e) - - a := bLinker.Next() - - eLinker.SetNext(a) - eLinker.SetPrev(b) - bLinker.SetNext(e) - - if a != nil { - ViewElementMapper{}.linkerFor(a).SetPrev(e) - } else { - l.tail = e - } -} - -// InsertBefore inserts e before a. -// -//go:nosplit -func (l *ViewList) InsertBefore(a, e *View) { - aLinker := ViewElementMapper{}.linkerFor(a) - eLinker := ViewElementMapper{}.linkerFor(e) - - b := aLinker.Prev() - eLinker.SetNext(a) - eLinker.SetPrev(b) - aLinker.SetPrev(e) - - if b != nil { - ViewElementMapper{}.linkerFor(b).SetNext(e) - } else { - l.head = e - } -} - -// Remove removes e from l. -// -//go:nosplit -func (l *ViewList) Remove(e *View) { - linker := ViewElementMapper{}.linkerFor(e) - prev := linker.Prev() - next := linker.Next() - - if prev != nil { - ViewElementMapper{}.linkerFor(prev).SetNext(next) - } else if l.head == e { - l.head = next - } - - if next != nil { - ViewElementMapper{}.linkerFor(next).SetPrev(prev) - } else if l.tail == e { - l.tail = prev - } - - linker.SetNext(nil) - linker.SetPrev(nil) -} - -// Entry is a default implementation of Linker. Users can add anonymous fields -// of this type to their structs to make them automatically implement the -// methods needed by List. -// -// +stateify savable -type ViewEntry struct { - next *View - prev *View -} - -// Next returns the entry that follows e in the list. -// -//go:nosplit -func (e *ViewEntry) Next() *View { - return e.next -} - -// Prev returns the entry that precedes e in the list. -// -//go:nosplit -func (e *ViewEntry) Prev() *View { - return e.prev -} - -// SetNext assigns 'entry' as the entry that follows e in the list. -// -//go:nosplit -func (e *ViewEntry) SetNext(elem *View) { - e.next = elem -} - -// SetPrev assigns 'entry' as the entry that precedes e in the list. -// -//go:nosplit -func (e *ViewEntry) SetPrev(elem *View) { - e.prev = elem -} diff --git a/vendor/gvisor.dev/gvisor/pkg/buffer/view_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/buffer/view_unsafe.go deleted file mode 100644 index cef7e7ed8a..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/buffer/view_unsafe.go +++ /dev/null @@ -1,26 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package buffer - -import ( - "reflect" - "unsafe" -) - -// BasePtr returns a pointer to the view's chunk. -func (v *View) BasePtr() *byte { - hdr := (*reflect.SliceHeader)(unsafe.Pointer(&v.chunk.data)) - return (*byte)(unsafe.Pointer(hdr.Data)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/context/context.go b/vendor/gvisor.dev/gvisor/pkg/context/context.go deleted file mode 100644 index 7f94da2478..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/context/context.go +++ /dev/null @@ -1,228 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package context defines an internal context type. -// -// The given Context conforms to the standard Go context, but mandates -// additional methods that are specific to the kernel internals. Note however, -// that the Context described by this package carries additional constraints -// regarding concurrent access and retaining beyond the scope of a call. -// -// See the Context type for complete details. -package context - -import ( - "context" - "errors" - "sync" - "time" - - "gvisor.dev/gvisor/pkg/log" - "gvisor.dev/gvisor/pkg/waiter" -) - -// Blocker represents an object with control flow hooks. -// -// These may be used to perform blocking operations, sleep or otherwise -// wait, since there may be asynchronous events that require processing. -type Blocker interface { - // Interrupt interrupts any Block operations. - Interrupt() - - // Interrupted notes whether this context is Interrupted. - Interrupted() bool - - // BlockOn blocks until one of the previously registered events occurs, - // or some external interrupt (cancellation). - // - // The return value should indicate whether the wake-up occurred as a - // result of the requested event (versus an external interrupt). - BlockOn(waiter.Waitable, waiter.EventMask) bool - - // Block blocks until an event is received from C, or some external - // interrupt. It returns nil if an event is received from C and an err if t - // is interrupted. - Block(C <-chan struct{}) error - - // BlockWithTimeoutOn blocks until either the conditions of Block are - // satisfied, or the timeout is hit. Note that deadlines are not supported - // since the notion of "with respect to what clock" is not resolved. - // - // The return value is per BlockOn. - BlockWithTimeoutOn(waiter.Waitable, waiter.EventMask, time.Duration) (time.Duration, bool) - - // UninterruptibleSleepStart indicates the beginning of an uninterruptible - // sleep state (equivalent to Linux's TASK_UNINTERRUPTIBLE). If deactivate - // is true and the Context represents a Task, the Task's AddressSpace is - // deactivated. - UninterruptibleSleepStart(deactivate bool) - - // UninterruptibleSleepFinish indicates the end of an uninterruptible sleep - // state that was begun by a previous call to UninterruptibleSleepStart. If - // activate is true and the Context represents a Task, the Task's - // AddressSpace is activated. Normally activate is the same value as the - // deactivate parameter passed to UninterruptibleSleepStart. - UninterruptibleSleepFinish(activate bool) -} - -// NoTask is an implementation of Blocker that does not block. -type NoTask struct { - cancel chan struct{} -} - -// Interrupt implements Blocker.Interrupt. -func (nt *NoTask) Interrupt() { - select { - case nt.cancel <- struct{}{}: - default: - } -} - -// Interrupted implements Blocker.Interrupted. -func (nt *NoTask) Interrupted() bool { - return nt.cancel != nil && len(nt.cancel) > 0 -} - -// Block implements Blocker.Block. -func (nt *NoTask) Block(C <-chan struct{}) error { - if nt.cancel == nil { - nt.cancel = make(chan struct{}, 1) - } - select { - case <-nt.cancel: - return errors.New("interrupted system call") // Interrupted. - case <-C: - return nil - } -} - -// BlockOn implements Blocker.BlockOn. -func (nt *NoTask) BlockOn(w waiter.Waitable, mask waiter.EventMask) bool { - if nt.cancel == nil { - nt.cancel = make(chan struct{}, 1) - } - e, ch := waiter.NewChannelEntry(mask) - w.EventRegister(&e) - defer w.EventUnregister(&e) - select { - case <-nt.cancel: - return false // Interrupted. - case _, ok := <-ch: - return ok - } -} - -// BlockWithTimeoutOn implements Blocker.BlockWithTimeoutOn. -func (nt *NoTask) BlockWithTimeoutOn(w waiter.Waitable, mask waiter.EventMask, duration time.Duration) (time.Duration, bool) { - if nt.cancel == nil { - nt.cancel = make(chan struct{}, 1) - } - e, ch := waiter.NewChannelEntry(mask) - w.EventRegister(&e) - defer w.EventUnregister(&e) - start := time.Now() // In system time. - t := time.AfterFunc(duration, func() { ch <- struct{}{} }) - select { - case <-nt.cancel: - return time.Since(start), false // Interrupted. - case _, ok := <-ch: - if ok && t.Stop() { - // Timer never fired. - return time.Since(start), ok - } - // Timer fired, remain is zero. - return time.Duration(0), ok - } -} - -// UninterruptibleSleepStart implmenents Blocker.UninterruptedSleepStart. -func (*NoTask) UninterruptibleSleepStart(bool) {} - -// UninterruptibleSleepFinish implmenents Blocker.UninterruptibleSleepFinish. -func (*NoTask) UninterruptibleSleepFinish(bool) {} - -// Context represents a thread of execution (hereafter "goroutine" to reflect -// Go idiosyncrasy). It carries state associated with the goroutine across API -// boundaries. -// -// While Context exists for essentially the same reasons as Go's standard -// context.Context, the standard type represents the state of an operation -// rather than that of a goroutine. This is a critical distinction: -// -// - Unlike context.Context, which "may be passed to functions running in -// different goroutines", it is *not safe* to use the same Context in multiple -// concurrent goroutines. -// -// - It is *not safe* to retain a Context passed to a function beyond the scope -// of that function call. -// -// In both cases, values extracted from the Context should be used instead. -type Context interface { - context.Context - log.Logger - Blocker -} - -// logContext implements basic logging. -type logContext struct { - NoTask - log.Logger - context.Context -} - -// bgContext is the context returned by context.Background. -var bgContext Context -var bgOnce sync.Once - -// Background returns an empty context using the default logger. -// Generally, one should use the Task as their context when available, or avoid -// having to use a context in places where a Task is unavailable. -// -// Using a Background context for tests is fine, as long as no values are -// needed from the context in the tested code paths. -// -// The global log.SetTarget() must be called before context.Background() -func Background() Context { - bgOnce.Do(func() { - bgContext = &logContext{ - Context: context.Background(), - Logger: log.Log(), - } - }) - return bgContext -} - -// WithValue returns a copy of parent in which the value associated with key is -// val. -func WithValue(parent Context, key, val any) Context { - return &withValue{ - Context: parent, - key: key, - val: val, - } -} - -type withValue struct { - Context - key any - val any -} - -// Value implements Context.Value. -func (ctx *withValue) Value(key any) any { - if key == ctx.key { - return ctx.val - } - return ctx.Context.Value(key) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/context/context_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/context/context_state_autogen.go deleted file mode 100644 index fdc3c9fbbb..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/context/context_state_autogen.go +++ /dev/null @@ -1,3 +0,0 @@ -// automatically generated by stateify. - -package context diff --git a/vendor/gvisor.dev/gvisor/pkg/cpuid/cpuid.go b/vendor/gvisor.dev/gvisor/pkg/cpuid/cpuid.go deleted file mode 100644 index df5acf67e5..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/cpuid/cpuid.go +++ /dev/null @@ -1,264 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package cpuid provides basic functionality for creating and adjusting CPU -// feature sets. -// -// Each architecture should define its own FeatureSet type, that must be -// savable, along with an allFeatures map, appropriate arch hooks and a -// HostFeatureSet function. This file contains common functionality to all -// architectures, which is essentially string munging and some errors. -// -// Individual architectures may export methods on FeatureSet that are relevant, -// e.g. FeatureSet.Vendor(). Common to all architectures, FeatureSets include -// HasFeature, which provides a trivial mechanism to test for the presence of -// specific hardware features. The hardware features are also defined on a -// per-architecture basis. -package cpuid - -import ( - "encoding/binary" - "fmt" - "os" - "runtime" - "strings" - - "gvisor.dev/gvisor/pkg/log" - "gvisor.dev/gvisor/pkg/sync" -) - -// contextID is the package for anyContext.Context.Value keys. -type contextID int - -const ( - // CtxFeatureSet is the FeatureSet for the context. - CtxFeatureSet contextID = iota - - // hardware capability bit vector. - _AT_HWCAP = 16 - // hardware capability bit vector 2. - _AT_HWCAP2 = 26 -) - -// anyContext represents context.Context. -type anyContext interface { - Value(key any) any -} - -// FromContext returns the FeatureSet from the context, if available. -func FromContext(ctx anyContext) FeatureSet { - v := ctx.Value(CtxFeatureSet) - if v == nil { - return FeatureSet{} // Panics if used. - } - return v.(FeatureSet) -} - -// Feature is a unique identifier for a particular cpu feature. We just use an -// int as a feature number on x86 and arm64. -// -// On x86, features are numbered according to "blocks". Each block is 32 bits, and -// feature bits from the same source (cpuid leaf/level) are in the same block. -// -// On arm64, features are numbered according to the ELF HWCAP definition, from -// arch/arm64/include/uapi/asm/hwcap.h. -type Feature int - -// allFeatureInfo is the value for allFeatures. -type allFeatureInfo struct { - // displayName is the short display name for the feature. - displayName string - - // shouldAppear indicates whether the feature normally appears in - // cpuinfo. This affects FlagString only. - shouldAppear bool -} - -// String implements fmt.Stringer.String. -func (f Feature) String() string { - info, ok := allFeatures[f] - if ok { - return info.displayName - } - return fmt.Sprintf("[0x%x?]", int(f)) // No given name. -} - -// reverseMap is a map from displayName to Feature. -var reverseMap = func() map[string]Feature { - m := make(map[string]Feature) - for feature, info := range allFeatures { - if info.displayName != "" { - // Sanity check that the name is unique. - if old, ok := m[info.displayName]; ok { - panic(fmt.Sprintf("feature %v has conflicting values (0x%x vs 0x%x)", info.displayName, old, feature)) - } - m[info.displayName] = feature - } - } - return m -}() - -// FeatureFromString returns the Feature associated with the given feature -// string plus a bool to indicate if it could find the feature. -func FeatureFromString(s string) (Feature, bool) { - feature, ok := reverseMap[s] - return feature, ok -} - -// AllFeatures returns the full set of all possible features. -func AllFeatures() (features []Feature) { - archFlagOrder(func(f Feature) { - features = append(features, f) - }) - return -} - -// Subtract returns the features present in fs that are not present in other. -// If all features in fs are present in other, Subtract returns nil. -// -// This does not check for any kinds of incompatibility. -func (fs FeatureSet) Subtract(other FeatureSet) (left map[Feature]struct{}) { - for feature := range allFeatures { - thisHas := fs.HasFeature(feature) - otherHas := other.HasFeature(feature) - if thisHas && !otherHas { - if left == nil { - left = make(map[Feature]struct{}) - } - left[feature] = struct{}{} - } - } - return -} - -// FlagString prints out supported CPU flags. -func (fs FeatureSet) FlagString() string { - var s []string - archFlagOrder(func(feature Feature) { - if !fs.HasFeature(feature) { - return - } - info := allFeatures[feature] - if !info.shouldAppear { - return - } - s = append(s, info.displayName) - }) - return strings.Join(s, " ") -} - -// ErrIncompatible is returned for incompatible feature sets. -type ErrIncompatible struct { - reason string -} - -// Error implements error.Error. -func (e *ErrIncompatible) Error() string { - return fmt.Sprintf("incompatible FeatureSet: %v", e.reason) -} - -// CheckHostCompatible returns nil if fs is a subset of the host feature set. -func (fs FeatureSet) CheckHostCompatible() error { - hfs := HostFeatureSet() - - // Check that hfs is a superset of fs. - if diff := fs.Subtract(hfs); len(diff) > 0 { - return &ErrIncompatible{ - reason: fmt.Sprintf("missing features: %v", diff), - } - } - - // Make arch-specific checks. - return fs.archCheckHostCompatible(hfs) -} - -// +stateify savable -type hwCap struct { - // hwCap1 stores HWCAP bits exposed through the elf auxiliary vector. - hwCap1 uint64 - // hwCap2 stores HWCAP2 bits exposed through the elf auxiliary vector. - hwCap2 uint64 -} - -// The auxiliary vector of a process on the Linux system can be read -// from /proc/self/auxv, and tags and values are stored as 8-bytes -// decimal key-value pairs on the 64-bit system. -// -// $ od -t d8 /proc/self/auxv -// -// 0000000 33 140734615224320 -// 0000020 16 3219913727 -// 0000040 6 4096 -// 0000060 17 100 -// 0000100 3 94665627353152 -// 0000120 4 56 -// 0000140 5 9 -// 0000160 7 140425502162944 -// 0000200 8 0 -// 0000220 9 94665627365760 -// 0000240 11 1000 -// 0000260 12 1000 -// 0000300 13 1000 -// 0000320 14 1000 -// 0000340 23 0 -// 0000360 25 140734614619513 -// 0000400 26 0 -// 0000420 31 140734614626284 -// 0000440 15 140734614619529 -// 0000460 0 0 -func readHWCap(auxvFilepath string) (hwCap, error) { - c := hwCap{} - if runtime.GOOS != "linux" { - // Don't try to read Linux-specific /proc files. - return c, fmt.Errorf("readHwCap only supported on linux, not %s", runtime.GOOS) - } - - auxv, err := os.ReadFile(auxvFilepath) - if err != nil { - return c, fmt.Errorf("failed to read file %s: %w", auxvFilepath, err) - } - - l := len(auxv) / 16 - for i := 0; i < l; i++ { - tag := binary.LittleEndian.Uint64(auxv[i*16:]) - val := binary.LittleEndian.Uint64(auxv[i*16+8:]) - if tag == _AT_HWCAP { - c.hwCap1 = val - } else if tag == _AT_HWCAP2 { - c.hwCap2 = val - } - - if (c.hwCap1 != 0) && (c.hwCap2 != 0) { - break - } - } - return c, nil -} - -func initHWCap() { - c, err := readHWCap("/proc/self/auxv") - if err != nil { - log.Warningf("cpuid HWCap not initialized: %w", err) - } else { - hostFeatureSet.hwCap = c - } -} - -var initOnce sync.Once - -// Initialize initializes the global data structures used by this package. -// Must be called prior to using anything else in this package. -func Initialize() { - initOnce.Do(archInitialize) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/cpuid/cpuid_amd64.go b/vendor/gvisor.dev/gvisor/pkg/cpuid/cpuid_amd64.go deleted file mode 100644 index 829e089e99..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/cpuid/cpuid_amd64.go +++ /dev/null @@ -1,482 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build amd64 -// +build amd64 - -package cpuid - -import ( - "context" - "fmt" - "io" -) - -// FeatureSet defines features in terms of CPUID leaves and bits. -// The kernel also exposes the presence of features to userspace through -// a set of flags(HWCAP/HWCAP2) bits, exposed in the auxiliary vector, which -// are necessary to read for some features (e.g. FSGSBASE). -// -// Common references: -// -// Intel: -// - Intel SDM Volume 2, Chapter 3.2 "CPUID" (more up-to-date) -// - Intel Application Note 485 (more detailed) -// -// AMD: -// - AMD64 APM Volume 3, Appendix 3 "Obtaining Processor Information ..." -// -// +stateify savable -type FeatureSet struct { - // Function is the underlying CPUID Function. - // - // This is exported to allow direct calls of the underlying CPUID - // function, where required. - Function `state:".(Static)"` - // hwCap stores HWCAP1/2 exposed from the elf auxiliary vector. - hwCap hwCap -} - -// saveFunction saves the function as a static query. -func (fs *FeatureSet) saveFunction() Static { - if s, ok := fs.Function.(Static); ok { - return s - } - return fs.ToStatic() -} - -// loadFunction saves the function as a static query. -func (fs *FeatureSet) loadFunction(_ context.Context, s Static) { - fs.Function = s -} - -// Helper to convert 3 regs into 12-byte vendor ID. -// -//go:nosplit -func vendorIDFromRegs(bx, cx, dx uint32) (r [12]byte) { - for i := uint(0); i < 4; i++ { - b := byte(bx >> (i * 8)) - r[i] = b - } - - for i := uint(0); i < 4; i++ { - b := byte(dx >> (i * 8)) - r[4+i] = b - } - - for i := uint(0); i < 4; i++ { - b := byte(cx >> (i * 8)) - r[8+i] = b - } - - return r -} - -// Helper to merge a 12-byte vendor ID back to registers. -// -// Used by static_amd64.go. -func regsFromVendorID(r [12]byte) (bx, cx, dx uint32) { - bx |= uint32(r[0]) - bx |= uint32(r[1]) << 8 - bx |= uint32(r[2]) << 16 - bx |= uint32(r[3]) << 24 - cx |= uint32(r[4]) - cx |= uint32(r[5]) << 8 - cx |= uint32(r[6]) << 16 - cx |= uint32(r[7]) << 24 - dx |= uint32(r[8]) - dx |= uint32(r[9]) << 8 - dx |= uint32(r[10]) << 16 - dx |= uint32(r[10]) << 24 - return -} - -// VendorID is the 12-char string returned in ebx:edx:ecx for eax=0. -// -//go:nosplit -func (fs FeatureSet) VendorID() [12]byte { - _, bx, cx, dx := fs.query(vendorID) - return vendorIDFromRegs(bx, cx, dx) -} - -// Helper to deconstruct signature dword. -// -//go:nosplit -func signatureSplit(v uint32) (ef, em, pt, f, m, sid uint8) { - sid = uint8(v & 0xf) - m = uint8(v>>4) & 0xf - f = uint8(v>>8) & 0xf - pt = uint8(v>>12) & 0x3 - em = uint8(v>>16) & 0xf - ef = uint8(v >> 20) - return -} - -// ExtendedFamily is part of the processor signature. -// -//go:nosplit -func (fs FeatureSet) ExtendedFamily() uint8 { - ax, _, _, _ := fs.query(featureInfo) - ef, _, _, _, _, _ := signatureSplit(ax) - return ef -} - -// ExtendedModel is part of the processor signature. -// -//go:nosplit -func (fs FeatureSet) ExtendedModel() uint8 { - ax, _, _, _ := fs.query(featureInfo) - _, em, _, _, _, _ := signatureSplit(ax) - return em -} - -// ProcessorType is part of the processor signature. -// -//go:nosplit -func (fs FeatureSet) ProcessorType() uint8 { - ax, _, _, _ := fs.query(featureInfo) - _, _, pt, _, _, _ := signatureSplit(ax) - return pt -} - -// Family is part of the processor signature. -// -//go:nosplit -func (fs FeatureSet) Family() uint8 { - ax, _, _, _ := fs.query(featureInfo) - _, _, _, f, _, _ := signatureSplit(ax) - return f -} - -// Model is part of the processor signature. -// -//go:nosplit -func (fs FeatureSet) Model() uint8 { - ax, _, _, _ := fs.query(featureInfo) - _, _, _, _, m, _ := signatureSplit(ax) - return m -} - -// SteppingID is part of the processor signature. -// -//go:nosplit -func (fs FeatureSet) SteppingID() uint8 { - ax, _, _, _ := fs.query(featureInfo) - _, _, _, _, _, sid := signatureSplit(ax) - return sid -} - -// VirtualAddressBits returns the number of bits available for virtual -// addresses. -// -//go:nosplit -func (fs FeatureSet) VirtualAddressBits() uint32 { - ax, _, _, _ := fs.query(addressSizes) - return (ax >> 8) & 0xff -} - -// PhysicalAddressBits returns the number of bits available for physical -// addresses. -// -//go:nosplit -func (fs FeatureSet) PhysicalAddressBits() uint32 { - ax, _, _, _ := fs.query(addressSizes) - return ax & 0xff -} - -// CacheType describes the type of a cache, as returned in eax[4:0] for eax=4. -type CacheType uint8 - -const ( - // cacheNull indicates that there are no more entries. - cacheNull CacheType = iota - - // CacheData is a data cache. - CacheData - - // CacheInstruction is an instruction cache. - CacheInstruction - - // CacheUnified is a unified instruction and data cache. - CacheUnified -) - -// Cache describes the parameters of a single cache on the system. -// -// This is returned by the Caches method on FeatureSet. -type Cache struct { - // Level is the hierarchical level of this cache (L1, L2, etc). - Level uint32 - - // Type is the type of cache. - Type CacheType - - // FullyAssociative indicates that entries may be placed in any block. - FullyAssociative bool - - // Partitions is the number of physical partitions in the cache. - Partitions uint32 - - // Ways is the number of ways of associativity in the cache. - Ways uint32 - - // Sets is the number of sets in the cache. - Sets uint32 - - // InvalidateHierarchical indicates that WBINVD/INVD from threads - // sharing this cache acts upon lower level caches for threads sharing - // this cache. - InvalidateHierarchical bool - - // Inclusive indicates that this cache is inclusive of lower cache - // levels. - Inclusive bool - - // DirectMapped indicates that this cache is directly mapped from - // address, rather than using a hash function. - DirectMapped bool -} - -// Caches describes the caches on the CPU. -// -// Only supported on Intel; requires allocation. -func (fs FeatureSet) Caches() (caches []Cache) { - if !fs.Intel() { - return - } - // Check against the cache line, which should be consistent. - cacheLine := fs.CacheLine() - for i := uint32(0); ; i++ { - out := fs.Query(In{ - Eax: uint32(intelDeterministicCacheParams), - Ecx: i, - }) - t := CacheType(out.Eax & 0xf) - if t == cacheNull { - break - } - lineSize := (out.Ebx & 0xfff) + 1 - if lineSize != cacheLine { - panic(fmt.Sprintf("Mismatched cache line size: %d vs %d", lineSize, cacheLine)) - } - caches = append(caches, Cache{ - Type: t, - Level: (out.Eax >> 5) & 0x7, - FullyAssociative: ((out.Eax >> 9) & 1) == 1, - Partitions: ((out.Ebx >> 12) & 0x3ff) + 1, - Ways: ((out.Ebx >> 22) & 0x3ff) + 1, - Sets: out.Ecx + 1, - InvalidateHierarchical: (out.Edx & 1) == 0, - Inclusive: ((out.Edx >> 1) & 1) == 1, - DirectMapped: ((out.Edx >> 2) & 1) == 0, - }) - } - return -} - -// CacheLine is the size of a cache line in bytes. -// -// All caches use the same line size. This is not enforced in the CPUID -// encoding, but is true on all known x86 processors. -// -//go:nosplit -func (fs FeatureSet) CacheLine() uint32 { - _, bx, _, _ := fs.query(featureInfo) - return 8 * (bx >> 8) & 0xff -} - -// HasFeature tests whether or not a feature is in the given feature set. -// -// This function is safe to call from a nosplit context, as long as the -// FeatureSet does not have any masked features. -// -//go:nosplit -func (fs FeatureSet) HasFeature(feature Feature) bool { - return feature.check(fs) -} - -// WriteCPUInfoTo is to generate a section of one cpu in /proc/cpuinfo. This is -// a minimal /proc/cpuinfo, it is missing some fields like "microcode" that are -// not always printed in Linux. Several fields are simply made up. -func (fs FeatureSet) WriteCPUInfoTo(cpu, numCPU uint, w io.Writer) { - // Avoid many redundant calls here, since this can occasionally appear - // in the hot path. Read all basic information up front, see above. - ax, _, _, _ := fs.query(featureInfo) - ef, em, _, f, m, _ := signatureSplit(ax) - vendor := fs.VendorID() - fmt.Fprintf(w, "processor\t: %d\n", cpu) - fmt.Fprintf(w, "vendor_id\t: %s\n", string(vendor[:])) - fmt.Fprintf(w, "cpu family\t: %d\n", ((ef<<4)&0xff)|f) - fmt.Fprintf(w, "model\t\t: %d\n", ((em<<4)&0xff)|m) - fmt.Fprintf(w, "model name\t: %s\n", "unknown") // Unknown for now. - fmt.Fprintf(w, "stepping\t: %s\n", "unknown") // Unknown for now. - fmt.Fprintf(w, "cpu MHz\t\t: %.3f\n", cpuFreqMHz) - // Pretend the CPU has 8192 KB of cache. Note that real /proc/cpuinfo exposes total L3 cache - // size on Intel and per-core L2 cache size on AMD (as of Linux 6.1.0), so the value of this - // field is not really important in practice. Any value that is chosen here will be wrong - // by an order of magnitude on a significant chunk of x86 machines. - // 8192 KB is selected because it is a reasonable size that will be effectively usable on - // lightly loaded machines - most machines have 1-4MB of L3 cache per core. - fmt.Fprintf(w, "cache size\t: 8192 KB\n") - fmt.Fprintf(w, "physical id\t: 0\n") // Pretend all CPUs are in the same socket. - fmt.Fprintf(w, "siblings\t: %d\n", numCPU) - fmt.Fprintf(w, "core id\t\t: %d\n", cpu) - fmt.Fprintf(w, "cpu cores\t: %d\n", numCPU) // Pretend each CPU is a distinct core (rather than a hyperthread). - fmt.Fprintf(w, "apicid\t\t: %d\n", cpu) - fmt.Fprintf(w, "initial apicid\t: %d\n", cpu) - fmt.Fprintf(w, "fpu\t\t: yes\n") - fmt.Fprintf(w, "fpu_exception\t: yes\n") - fmt.Fprintf(w, "cpuid level\t: %d\n", uint32(xSaveInfo)) // Same as ax in vendorID. - fmt.Fprintf(w, "wp\t\t: yes\n") - fmt.Fprintf(w, "flags\t\t: %s\n", fs.FlagString()) - fmt.Fprintf(w, "bogomips\t: %.02f\n", cpuFreqMHz) // It's bogus anyway. - fmt.Fprintf(w, "clflush size\t: %d\n", fs.CacheLine()) - fmt.Fprintf(w, "cache_alignment\t: %d\n", fs.CacheLine()) - fmt.Fprintf(w, "address sizes\t: %d bits physical, %d bits virtual\n", 46, 48) - fmt.Fprintf(w, "power management:\n") // This is always here, but can be blank. - fmt.Fprintf(w, "\n") // The /proc/cpuinfo file ends with an extra newline. -} - -var ( - authenticAMD = [12]byte{'A', 'u', 't', 'h', 'e', 'n', 't', 'i', 'c', 'A', 'M', 'D'} - genuineIntel = [12]byte{'G', 'e', 'n', 'u', 'i', 'n', 'e', 'I', 'n', 't', 'e', 'l'} -) - -// AMD returns true if fs describes an AMD CPU. -// -//go:nosplit -func (fs FeatureSet) AMD() bool { - return fs.VendorID() == authenticAMD -} - -// Intel returns true if fs describes an Intel CPU. -// -//go:nosplit -func (fs FeatureSet) Intel() bool { - return fs.VendorID() == genuineIntel -} - -// Leaf 0 of xsaveinfo function returns the size for currently -// enabled xsave features in ebx, the maximum size if all valid -// features are saved with xsave in ecx, and valid XCR0 bits in -// edx:eax. -// -// If xSaveInfo isn't supported, cpuid will not fault but will -// return bogus values. -var ( - xsaveSize = native(In{Eax: uint32(xSaveInfo)}).Ebx - maxXsaveSize = native(In{Eax: uint32(xSaveInfo)}).Ecx - amxTileCfgSize = native(In{Eax: uint32(xSaveInfo), Ecx: 17}).Eax - amxTileDataSize = native(In{Eax: uint32(xSaveInfo), Ecx: 18}).Eax -) - -const ( - // XCR0AMXMask are the bits that enable xsave to operate on AMX TILECFG - // and TILEDATA. - // - // Note: TILECFG and TILEDATA are always either both enabled or both - // disabled. - // - // See Intel® 64 and IA-32 Architectures Software Developer’s Manual Vol.1 - // section 13.3 for details. - XCR0AMXMask = uint64((1 << 17) | (1 << 18)) -) - -// ExtendedStateSize returns the number of bytes needed to save the "extended -// state" for the enabled features and the boundary it must be aligned to. -// Extended state includes floating point registers, and other cpu state that's -// not associated with the normal task context. -// -// Note: the return value matches the size of signal FP state frames. -// Look at check_xstate_in_sigframe() in the kernel sources for more details. -// -//go:nosplit -func (fs FeatureSet) ExtendedStateSize() (size, align uint) { - if fs.UseXsave() { - return uint(xsaveSize), 64 - } - - // If we don't support xsave, we fall back to fxsave, which requires - // 512 bytes aligned to 16 bytes. - return 512, 16 -} - -// AMXExtendedStateSize returns the number of bytes within the "extended state" -// area that is used for AMX. -func (fs FeatureSet) AMXExtendedStateSize() uint { - if fs.UseXsave() { - xcr0 := xgetbv(0) - if (xcr0 & XCR0AMXMask) != 0 { - return uint(amxTileCfgSize + amxTileDataSize) - } - } - return 0 -} - -// ValidXCR0Mask returns the valid bits in control register XCR0. -// -// Always exclude AMX bits, because we do not support it. -// TODO(gvisor.dev/issues/9896): Implement AMX Support. -// -//go:nosplit -func (fs FeatureSet) ValidXCR0Mask() uint64 { - if !fs.HasFeature(X86FeatureXSAVE) { - return 0 - } - ax, _, _, dx := fs.query(xSaveInfo) - return (uint64(dx)<<32 | uint64(ax)) &^ XCR0AMXMask -} - -// UseXsave returns the choice of fp state saving instruction. -// -//go:nosplit -func (fs FeatureSet) UseXsave() bool { - return fs.HasFeature(X86FeatureXSAVE) && fs.HasFeature(X86FeatureOSXSAVE) -} - -// UseXsaveopt returns true if 'fs' supports the "xsaveopt" instruction. -// -//go:nosplit -func (fs FeatureSet) UseXsaveopt() bool { - return fs.UseXsave() && fs.HasFeature(X86FeatureXSAVEOPT) -} - -// UseXsavec returns true if 'fs' supports the "xsavec" instruction. -// -//go:nosplit -func (fs FeatureSet) UseXsavec() bool { - return fs.UseXsaveopt() && fs.HasFeature(X86FeatureXSAVEC) -} - -// UseFSGSBASE returns true if 'fs' supports the (RD|WR)(FS|GS)BASE instructions. -func (fs FeatureSet) UseFSGSBASE() bool { - HWCAP2_FSGSBASE := uint64(1) << 1 - return fs.HasFeature(X86FeatureFSGSBase) && ((fs.hwCap.hwCap2 & HWCAP2_FSGSBASE) != 0) -} - -// archCheckHostCompatible checks for compatibility. -func (fs FeatureSet) archCheckHostCompatible(hfs FeatureSet) error { - // The size of a cache line must match, as it is critical to correctly - // utilizing CLFLUSH. Other cache properties are allowed to change, as - // they are not important to correctness. - fsCache := fs.CacheLine() - hostCache := hfs.CacheLine() - if fsCache != hostCache { - return &ErrIncompatible{ - reason: fmt.Sprintf("CPU cache line size %d incompatible with host cache line size %d", fsCache, hostCache), - } - } - - return nil -} diff --git a/vendor/gvisor.dev/gvisor/pkg/cpuid/cpuid_amd64_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/cpuid/cpuid_amd64_state_autogen.go deleted file mode 100644 index bb416970c4..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/cpuid/cpuid_amd64_state_autogen.go +++ /dev/null @@ -1,110 +0,0 @@ -// automatically generated by stateify. - -//go:build amd64 && amd64 && amd64 && amd64 -// +build amd64,amd64,amd64,amd64 - -package cpuid - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (fs *FeatureSet) StateTypeName() string { - return "pkg/cpuid.FeatureSet" -} - -func (fs *FeatureSet) StateFields() []string { - return []string{ - "Function", - "hwCap", - } -} - -func (fs *FeatureSet) beforeSave() {} - -// +checklocksignore -func (fs *FeatureSet) StateSave(stateSinkObject state.Sink) { - fs.beforeSave() - var FunctionValue Static - FunctionValue = fs.saveFunction() - stateSinkObject.SaveValue(0, FunctionValue) - stateSinkObject.Save(1, &fs.hwCap) -} - -func (fs *FeatureSet) afterLoad(context.Context) {} - -// +checklocksignore -func (fs *FeatureSet) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(1, &fs.hwCap) - stateSourceObject.LoadValue(0, new(Static), func(y any) { fs.loadFunction(ctx, y.(Static)) }) -} - -func (i *In) StateTypeName() string { - return "pkg/cpuid.In" -} - -func (i *In) StateFields() []string { - return []string{ - "Eax", - "Ecx", - } -} - -func (i *In) beforeSave() {} - -// +checklocksignore -func (i *In) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.Eax) - stateSinkObject.Save(1, &i.Ecx) -} - -func (i *In) afterLoad(context.Context) {} - -// +checklocksignore -func (i *In) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.Eax) - stateSourceObject.Load(1, &i.Ecx) -} - -func (o *Out) StateTypeName() string { - return "pkg/cpuid.Out" -} - -func (o *Out) StateFields() []string { - return []string{ - "Eax", - "Ebx", - "Ecx", - "Edx", - } -} - -func (o *Out) beforeSave() {} - -// +checklocksignore -func (o *Out) StateSave(stateSinkObject state.Sink) { - o.beforeSave() - stateSinkObject.Save(0, &o.Eax) - stateSinkObject.Save(1, &o.Ebx) - stateSinkObject.Save(2, &o.Ecx) - stateSinkObject.Save(3, &o.Edx) -} - -func (o *Out) afterLoad(context.Context) {} - -// +checklocksignore -func (o *Out) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &o.Eax) - stateSourceObject.Load(1, &o.Ebx) - stateSourceObject.Load(2, &o.Ecx) - stateSourceObject.Load(3, &o.Edx) -} - -func init() { - state.Register((*FeatureSet)(nil)) - state.Register((*In)(nil)) - state.Register((*Out)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/cpuid/cpuid_arm64.go b/vendor/gvisor.dev/gvisor/pkg/cpuid/cpuid_arm64.go deleted file mode 100644 index 964f33acb6..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/cpuid/cpuid_arm64.go +++ /dev/null @@ -1,110 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build arm64 -// +build arm64 - -package cpuid - -import ( - "fmt" - "io" -) - -// FeatureSet for ARM64 is defined as a static set of bits. -// -// ARM64 doesn't have a CPUID equivalent, which means it has no architected -// discovery mechanism for hardware features available to userspace code at -// EL0. The kernel exposes the presence of these features to userspace through -// a set of flags(HWCAP/HWCAP2) bits, exposed in the auxiliary vector. See -// Documentation/arm64/elf_hwcaps.rst for more info. -// -// Currently, only the HWCAP bits are supported. -// -// +stateify savable -type FeatureSet struct { - hwCap hwCap - cpuFreqMHz float64 - cpuImplHex uint64 - cpuArchDec uint64 - cpuVarHex uint64 - cpuPartHex uint64 - cpuRevDec uint64 -} - -// CPUImplementer is part of the processor signature. -func (fs FeatureSet) CPUImplementer() uint8 { - return uint8(fs.cpuImplHex) -} - -// CPUArchitecture is part of the processor signature. -func (fs FeatureSet) CPUArchitecture() uint8 { - return uint8(fs.cpuArchDec) -} - -// CPUVariant is part of the processor signature. -func (fs FeatureSet) CPUVariant() uint8 { - return uint8(fs.cpuVarHex) -} - -// CPUPartnum is part of the processor signature. -func (fs FeatureSet) CPUPartnum() uint16 { - return uint16(fs.cpuPartHex) -} - -// CPURevision is part of the processor signature. -func (fs FeatureSet) CPURevision() uint8 { - return uint8(fs.cpuRevDec) -} - -// ExtendedStateSize returns the number of bytes needed to save the "extended -// state" for this processor and the boundary it must be aligned to. Extended -// state includes floating point(NEON) registers, and other cpu state that's not -// associated with the normal task context. -func (fs FeatureSet) ExtendedStateSize() (size, align uint) { - // ARMv8 provide 32x128bits NEON registers. - // - // Ref arch/arm64/include/uapi/asm/ptrace.h - // struct user_fpsimd_state { - // __uint128_t vregs[32]; - // __u32 fpsr; - // __u32 fpcr; - // __u32 __reserved[2]; - // }; - return 528, 16 -} - -// HasFeature checks for the presence of a feature. -func (fs FeatureSet) HasFeature(feature Feature) bool { - return fs.hwCap.hwCap1&(1<= uint32(extendedFeatures) { - _, _, cx, dx := fs.query(extendedFeatures) - if f.block() == 5 { - return (cx & f.bit()) != 0 - } - // Ignore features duplicated from block 1 on AMD. - // These bits are reserved on Intel. - return ((dx &^ block6DuplicateMask) & f.bit()) != 0 - } - return false - case 7: - _, _, _, dx := fs.query(extendedFeatureInfo) - return (dx & f.bit()) != 0 - default: - return false - } -} - -// Block 0 constants are all of the "basic" feature bits returned by a cpuid in -// ecx with eax=1. -const ( - X86FeatureSSE3 Feature = iota - X86FeaturePCLMULDQ - X86FeatureDTES64 - X86FeatureMONITOR - X86FeatureDSCPL - X86FeatureVMX - X86FeatureSMX - X86FeatureEST - X86FeatureTM2 - X86FeatureSSSE3 // Not a typo, "supplemental" SSE3. - X86FeatureCNXTID - X86FeatureSDBG - X86FeatureFMA - X86FeatureCX16 - X86FeatureXTPR - X86FeaturePDCM - _ // ecx bit 16 is reserved. - X86FeaturePCID - X86FeatureDCA - X86FeatureSSE4_1 - X86FeatureSSE4_2 - X86FeatureX2APIC - X86FeatureMOVBE - X86FeaturePOPCNT - X86FeatureTSCD - X86FeatureAES - X86FeatureXSAVE - X86FeatureOSXSAVE - X86FeatureAVX - X86FeatureF16C - X86FeatureRDRAND - X86FeatureHypervisor -) - -// Block 1 constants are all of the "basic" feature bits returned by a cpuid in -// edx with eax=1. -const ( - X86FeatureFPU Feature = 32 + iota - X86FeatureVME - X86FeatureDE - X86FeaturePSE - X86FeatureTSC - X86FeatureMSR - X86FeaturePAE - X86FeatureMCE - X86FeatureCX8 - X86FeatureAPIC - _ // edx bit 10 is reserved. - X86FeatureSEP - X86FeatureMTRR - X86FeaturePGE - X86FeatureMCA - X86FeatureCMOV - X86FeaturePAT - X86FeaturePSE36 - X86FeaturePSN - X86FeatureCLFSH - _ // edx bit 20 is reserved. - X86FeatureDS - X86FeatureACPI - X86FeatureMMX - X86FeatureFXSR - X86FeatureSSE - X86FeatureSSE2 - X86FeatureSS - X86FeatureHTT - X86FeatureTM - X86FeatureIA64 - X86FeaturePBE -) - -// Block 2 bits are the "structured extended" features returned in ebx for -// eax=7, ecx=0. -const ( - X86FeatureFSGSBase Feature = 2*32 + iota - X86FeatureTSC_ADJUST - _ // ebx bit 2 is reserved. - X86FeatureBMI1 - X86FeatureHLE - X86FeatureAVX2 - X86FeatureFDP_EXCPTN_ONLY - X86FeatureSMEP - X86FeatureBMI2 - X86FeatureERMS - X86FeatureINVPCID - X86FeatureRTM - X86FeatureCQM - X86FeatureFPCSDS - X86FeatureMPX - X86FeatureRDT - X86FeatureAVX512F - X86FeatureAVX512DQ - X86FeatureRDSEED - X86FeatureADX - X86FeatureSMAP - X86FeatureAVX512IFMA - X86FeaturePCOMMIT - X86FeatureCLFLUSHOPT - X86FeatureCLWB - X86FeatureIPT // Intel processor trace. - X86FeatureAVX512PF - X86FeatureAVX512ER - X86FeatureAVX512CD - X86FeatureSHA - X86FeatureAVX512BW - X86FeatureAVX512VL -) - -// Block 3 bits are the "extended" features returned in ecx for eax=7, ecx=0. -const ( - X86FeaturePREFETCHWT1 Feature = 3*32 + iota - X86FeatureAVX512VBMI - X86FeatureUMIP - X86FeaturePKU - X86FeatureOSPKE - X86FeatureWAITPKG - X86FeatureAVX512_VBMI2 - X86FeatureCET_SS - X86FeatureGFNI - X86FeatureVAES - X86FeatureVPCLMULQDQ - X86FeatureAVX512_VNNI - X86FeatureAVX512_BITALG - X86FeatureTME - X86FeatureAVX512_VPOPCNTDQ - _ // ecx bit 15 is reserved - X86FeatureLA57 - // ecx bits 17-21 are reserved - _ - _ - _ - _ - _ - X86FeatureRDPID - // ecx bits 23-24 are reserved - _ - _ - X86FeatureCLDEMOTE - _ // ecx bit 26 is reserved - X86FeatureMOVDIRI - X86FeatureMOVDIR64B -) - -// Block 4 constants are for xsave capabilities in CPUID.(EAX=0DH,ECX=01H):EAX. -// The CPUID leaf is available only if 'X86FeatureXSAVE' is present. -const ( - X86FeatureXSAVEOPT Feature = 4*32 + iota - X86FeatureXSAVEC - X86FeatureXGETBV1 - X86FeatureXSAVES - // EAX[31:4] are reserved. -) - -// Block 5 constants are the extended feature bits in -// CPUID.(EAX=0x80000001):ECX. -const ( - X86FeatureLAHF64 Feature = 5*32 + iota - X86FeatureCMP_LEGACY - X86FeatureSVM - X86FeatureEXTAPIC - X86FeatureCR8_LEGACY - X86FeatureLZCNT - X86FeatureSSE4A - X86FeatureMISALIGNSSE - X86FeaturePREFETCHW - X86FeatureOSVW - X86FeatureIBS - X86FeatureXOP - X86FeatureSKINIT - X86FeatureWDT - _ // ecx bit 14 is reserved. - X86FeatureLWP - X86FeatureFMA4 - X86FeatureTCE - _ // ecx bit 18 is reserved. - _ // ecx bit 19 is reserved. - _ // ecx bit 20 is reserved. - X86FeatureTBM - X86FeatureTOPOLOGY - X86FeaturePERFCTR_CORE - X86FeaturePERFCTR_NB - _ // ecx bit 25 is reserved. - X86FeatureBPEXT - X86FeaturePERFCTR_TSC - X86FeaturePERFCTR_LLC - X86FeatureMWAITX - X86FeatureADMSKEXTN - _ // ecx bit 31 is reserved. -) - -// Block 6 constants are the extended feature bits in -// CPUID.(EAX=0x80000001):EDX. -// -// These are sparse, and so the bit positions are assigned manually. -const ( - // On AMD, EDX[24:23] | EDX[17:12] | EDX[9:0] are duplicate features - // also defined in block 1 (in identical bit positions). Those features - // are not listed here. - block6DuplicateMask = 0x183f3ff - - X86FeatureSYSCALL Feature = 6*32 + 11 - X86FeatureNX Feature = 6*32 + 20 - X86FeatureMMXEXT Feature = 6*32 + 22 - X86FeatureFXSR_OPT Feature = 6*32 + 25 - X86FeatureGBPAGES Feature = 6*32 + 26 - X86FeatureRDTSCP Feature = 6*32 + 27 - X86FeatureLM Feature = 6*32 + 29 - X86Feature3DNOWEXT Feature = 6*32 + 30 - X86Feature3DNOW Feature = 6*32 + 31 -) - -// Block 7 constants are the extended features bits in -// CPUID.(EAX=07H,ECX=0):EDX. -const ( - _ Feature = 7*32 + iota // edx bit 0 is reserved. - _ // edx bit 1 is reserved. - X86FeatureAVX512_4VNNIW - X86FeatureAVX512_4FMAPS - X86FeatureFSRM - _ // edx bit 5 is not used in Linux. - _ // edx bit 6 is reserved. - _ // edx bit 7 is reserved. - X86FeatureAVX512_VP2INTERSECT - X86FeatureSRBDS_CTRL - X86FeatureMD_CLEAR - X86FeatureRTM_ALWAYS_ABORT - _ // edx bit 12 is reserved. - X86FeatureTSX_FORCE_ABORT - X86FeatureSERIALIZE - X86FeatureHYBRID_CPU - X86FeatureTSXLDTRK - _ // edx bit 17 is reserved. - X86FeaturePCONFIG - X86FeatureARCH_LBR - X86FeatureIBT - _ // edx bit 21 is reserved. - X86FeatureAMX_BF16 - X86FeatureAVX512_FP16 - X86FeatureAMX_TILE - X86FeatureAMX_INT8 - X86FeatureSPEC_CTRL - X86FeatureINTEL_STIBP - X86FeatureFLUSH_L1D - X86FeatureARCH_CAPABILITIES - X86FeatureCORE_CAPABILITIES - X86FeatureSPEC_CTRL_SSBD -) - -// These are the extended floating point state features. They are used to -// enumerate floating point features in XCR0, XSTATE_BV, etc. -const ( - XSAVEFeatureX87 = 1 << 0 - XSAVEFeatureSSE = 1 << 1 - XSAVEFeatureAVX = 1 << 2 - XSAVEFeatureBNDREGS = 1 << 3 - XSAVEFeatureBNDCSR = 1 << 4 - XSAVEFeatureAVX512op = 1 << 5 - XSAVEFeatureAVX512zmm0 = 1 << 6 - XSAVEFeatureAVX512zmm16 = 1 << 7 - XSAVEFeaturePKRU = 1 << 9 -) - -// allFeatures is the set of allFeatures. -// -// These match names used in arch/x86/kernel/cpu/capflags.c. -var allFeatures = map[Feature]allFeatureInfo{ - // Block 0. - X86FeatureSSE3: {"pni", true}, - X86FeaturePCLMULDQ: {"pclmulqdq", true}, - X86FeatureDTES64: {"dtes64", true}, - X86FeatureMONITOR: {"monitor", true}, - X86FeatureDSCPL: {"ds_cpl", true}, - X86FeatureVMX: {"vmx", true}, - X86FeatureSMX: {"smx", true}, - X86FeatureEST: {"est", true}, - X86FeatureTM2: {"tm2", true}, - X86FeatureSSSE3: {"ssse3", true}, - X86FeatureCNXTID: {"cid", true}, - X86FeatureSDBG: {"sdbg", true}, - X86FeatureFMA: {"fma", true}, - X86FeatureCX16: {"cx16", true}, - X86FeatureXTPR: {"xtpr", true}, - X86FeaturePDCM: {"pdcm", true}, - X86FeaturePCID: {"pcid", true}, - X86FeatureDCA: {"dca", true}, - X86FeatureSSE4_1: {"sse4_1", true}, - X86FeatureSSE4_2: {"sse4_2", true}, - X86FeatureX2APIC: {"x2apic", true}, - X86FeatureMOVBE: {"movbe", true}, - X86FeaturePOPCNT: {"popcnt", true}, - X86FeatureTSCD: {"tsc_deadline_timer", true}, - X86FeatureAES: {"aes", true}, - X86FeatureXSAVE: {"xsave", true}, - X86FeatureAVX: {"avx", true}, - X86FeatureF16C: {"f16c", true}, - X86FeatureRDRAND: {"rdrand", true}, - X86FeatureHypervisor: {"hypervisor", true}, - X86FeatureOSXSAVE: {"osxsave", false}, - - // Block 1. - X86FeatureFPU: {"fpu", true}, - X86FeatureVME: {"vme", true}, - X86FeatureDE: {"de", true}, - X86FeaturePSE: {"pse", true}, - X86FeatureTSC: {"tsc", true}, - X86FeatureMSR: {"msr", true}, - X86FeaturePAE: {"pae", true}, - X86FeatureMCE: {"mce", true}, - X86FeatureCX8: {"cx8", true}, - X86FeatureAPIC: {"apic", true}, - X86FeatureSEP: {"sep", true}, - X86FeatureMTRR: {"mtrr", true}, - X86FeaturePGE: {"pge", true}, - X86FeatureMCA: {"mca", true}, - X86FeatureCMOV: {"cmov", true}, - X86FeaturePAT: {"pat", true}, - X86FeaturePSE36: {"pse36", true}, - X86FeaturePSN: {"pn", true}, - X86FeatureCLFSH: {"clflush", true}, - X86FeatureDS: {"dts", true}, - X86FeatureACPI: {"acpi", true}, - X86FeatureMMX: {"mmx", true}, - X86FeatureFXSR: {"fxsr", true}, - X86FeatureSSE: {"sse", true}, - X86FeatureSSE2: {"sse2", true}, - X86FeatureSS: {"ss", true}, - X86FeatureHTT: {"ht", true}, - X86FeatureTM: {"tm", true}, - X86FeatureIA64: {"ia64", true}, - X86FeaturePBE: {"pbe", true}, - - // Block 2. - X86FeatureFSGSBase: {"fsgsbase", true}, - X86FeatureTSC_ADJUST: {"tsc_adjust", true}, - X86FeatureBMI1: {"bmi1", true}, - X86FeatureHLE: {"hle", true}, - X86FeatureAVX2: {"avx2", true}, - X86FeatureSMEP: {"smep", true}, - X86FeatureBMI2: {"bmi2", true}, - X86FeatureERMS: {"erms", true}, - X86FeatureINVPCID: {"invpcid", true}, - X86FeatureRTM: {"rtm", true}, - X86FeatureCQM: {"cqm", true}, - X86FeatureMPX: {"mpx", true}, - X86FeatureRDT: {"rdt_a", true}, - X86FeatureAVX512F: {"avx512f", true}, - X86FeatureAVX512DQ: {"avx512dq", true}, - X86FeatureRDSEED: {"rdseed", true}, - X86FeatureADX: {"adx", true}, - X86FeatureSMAP: {"smap", true}, - X86FeatureCLWB: {"clwb", true}, - X86FeatureAVX512PF: {"avx512pf", true}, - X86FeatureAVX512ER: {"avx512er", true}, - X86FeatureAVX512CD: {"avx512cd", true}, - X86FeatureSHA: {"sha_ni", true}, - X86FeatureAVX512BW: {"avx512bw", true}, - X86FeatureAVX512VL: {"avx512vl", true}, - X86FeatureFDP_EXCPTN_ONLY: {"fdp_excptn_only", false}, - X86FeatureFPCSDS: {"fpcsds", false}, - X86FeatureIPT: {"ipt", false}, - X86FeatureCLFLUSHOPT: {"clfushopt", false}, - - // Block 3. - X86FeatureAVX512VBMI: {"avx512vbmi", true}, - X86FeatureUMIP: {"umip", true}, - X86FeaturePKU: {"pku", true}, - X86FeatureOSPKE: {"ospke", true}, - X86FeatureWAITPKG: {"waitpkg", true}, - X86FeatureAVX512_VBMI2: {"avx512_vbmi2", true}, - X86FeatureGFNI: {"gfni", true}, - X86FeatureCET_SS: {"cet_ss", false}, - X86FeatureVAES: {"vaes", true}, - X86FeatureVPCLMULQDQ: {"vpclmulqdq", true}, - X86FeatureAVX512_VNNI: {"avx512_vnni", true}, - X86FeatureAVX512_BITALG: {"avx512_bitalg", true}, - X86FeatureTME: {"tme", true}, - X86FeatureAVX512_VPOPCNTDQ: {"avx512_vpopcntdq", true}, - X86FeatureLA57: {"la57", true}, - X86FeatureRDPID: {"rdpid", true}, - X86FeatureCLDEMOTE: {"cldemote", true}, - X86FeatureMOVDIRI: {"movdiri", true}, - X86FeatureMOVDIR64B: {"movdir64b", true}, - X86FeaturePREFETCHWT1: {"prefetchwt1", false}, - - // Block 4. - X86FeatureXSAVEOPT: {"xsaveopt", true}, - X86FeatureXSAVEC: {"xsavec", true}, - X86FeatureXGETBV1: {"xgetbv1", true}, - X86FeatureXSAVES: {"xsaves", true}, - - // Block 5. - X86FeatureLAHF64: {"lahf_lm", true}, // LAHF/SAHF in long mode. - X86FeatureCMP_LEGACY: {"cmp_legacy", true}, - X86FeatureSVM: {"svm", true}, - X86FeatureEXTAPIC: {"extapic", true}, - X86FeatureCR8_LEGACY: {"cr8_legacy", true}, - X86FeatureLZCNT: {"abm", true}, // Advanced bit manipulation. - X86FeatureSSE4A: {"sse4a", true}, - X86FeatureMISALIGNSSE: {"misalignsse", true}, - X86FeaturePREFETCHW: {"3dnowprefetch", true}, - X86FeatureOSVW: {"osvw", true}, - X86FeatureIBS: {"ibs", true}, - X86FeatureXOP: {"xop", true}, - X86FeatureSKINIT: {"skinit", true}, - X86FeatureWDT: {"wdt", true}, - X86FeatureLWP: {"lwp", true}, - X86FeatureFMA4: {"fma4", true}, - X86FeatureTCE: {"tce", true}, - X86FeatureTBM: {"tbm", true}, - X86FeatureTOPOLOGY: {"topoext", true}, - X86FeaturePERFCTR_CORE: {"perfctr_core", true}, - X86FeaturePERFCTR_NB: {"perfctr_nb", true}, - X86FeatureBPEXT: {"bpext", true}, - X86FeaturePERFCTR_TSC: {"ptsc", true}, - X86FeaturePERFCTR_LLC: {"perfctr_llc", true}, - X86FeatureMWAITX: {"mwaitx", true}, - X86FeatureADMSKEXTN: {"ad_mask_extn", false}, - - // Block 6. - X86FeatureSYSCALL: {"syscall", true}, - X86FeatureNX: {"nx", true}, - X86FeatureMMXEXT: {"mmxext", true}, - X86FeatureFXSR_OPT: {"fxsr_opt", true}, - X86FeatureGBPAGES: {"pdpe1gb", true}, - X86FeatureRDTSCP: {"rdtscp", true}, - X86FeatureLM: {"lm", true}, - X86Feature3DNOWEXT: {"3dnowext", true}, - X86Feature3DNOW: {"3dnow", true}, - - // Block 7. - X86FeatureAVX512_4VNNIW: {"avx512_4vnniw", true}, - X86FeatureAVX512_4FMAPS: {"avx512_4fmaps", true}, - X86FeatureFSRM: {"fsrm", true}, - X86FeatureAVX512_VP2INTERSECT: {"avx512_vp2intersect", true}, - X86FeatureSRBDS_CTRL: {"srbds_ctrl", false}, - X86FeatureMD_CLEAR: {"md_clear", true}, - X86FeatureRTM_ALWAYS_ABORT: {"rtm_always_abort", false}, - X86FeatureTSX_FORCE_ABORT: {"tsx_force_abort", false}, - X86FeatureSERIALIZE: {"serialize", true}, - X86FeatureHYBRID_CPU: {"hybrid_cpu", false}, - X86FeatureTSXLDTRK: {"tsxldtrk", true}, - X86FeaturePCONFIG: {"pconfig", true}, - X86FeatureARCH_LBR: {"arch_lbr", true}, - X86FeatureIBT: {"ibt", true}, - X86FeatureAMX_BF16: {"amx_bf16", true}, - X86FeatureAVX512_FP16: {"avx512_fp16", true}, - X86FeatureAMX_TILE: {"amx_tile", true}, - X86FeatureAMX_INT8: {"amx_int8", true}, - X86FeatureSPEC_CTRL: {"spec_ctrl", false}, - X86FeatureINTEL_STIBP: {"intel_stibp", false}, - X86FeatureFLUSH_L1D: {"flush_l1d", true}, - X86FeatureARCH_CAPABILITIES: {"arch_capabilities", true}, - X86FeatureCORE_CAPABILITIES: {"core_capabilities", false}, - X86FeatureSPEC_CTRL_SSBD: {"spec_ctrl_ssbd", false}, -} - -// linuxBlockOrder defines the order in which linux organizes the feature -// blocks. Linux also tracks feature bits in 32-bit blocks, but in an order -// which doesn't match well here, so for the /proc/cpuinfo generation we simply -// re-map the blocks to Linux's ordering and then go through the bits in each -// block. -var linuxBlockOrder = []block{1, 6, 0, 5, 2, 4, 3, 7} - -func archFlagOrder(fn func(Feature)) { - for _, b := range linuxBlockOrder { - for i := 0; i < blockSize; i++ { - f := featureID(b, i) - if _, ok := allFeatures[f]; ok { - fn(f) - } - } - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/cpuid/features_arm64.go b/vendor/gvisor.dev/gvisor/pkg/cpuid/features_arm64.go deleted file mode 100644 index bd39296036..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/cpuid/features_arm64.go +++ /dev/null @@ -1,147 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build arm64 -// +build arm64 - -package cpuid - -const ( - // ARM64FeatureFP indicates support for single and double precision - // float point types. - ARM64FeatureFP Feature = iota - - // ARM64FeatureASIMD indicates support for Advanced SIMD with single - // and double precision float point arithmetic. - ARM64FeatureASIMD - - // ARM64FeatureEVTSTRM indicates support for the generic timer - // configured to generate events at a frequency of approximately - // 100KHz. - ARM64FeatureEVTSTRM - - // ARM64FeatureAES indicates support for AES instructions - // (AESE/AESD/AESMC/AESIMC). - ARM64FeatureAES - - // ARM64FeaturePMULL indicates support for AES instructions - // (PMULL/PMULL2). - ARM64FeaturePMULL - - // ARM64FeatureSHA1 indicates support for SHA1 instructions - // (SHA1C/SHA1P/SHA1M etc). - ARM64FeatureSHA1 - - // ARM64FeatureSHA2 indicates support for SHA2 instructions - // (SHA256H/SHA256H2/SHA256SU0 etc). - ARM64FeatureSHA2 - - // ARM64FeatureCRC32 indicates support for CRC32 instructions - // (CRC32B/CRC32H/CRC32W etc). - ARM64FeatureCRC32 - - // ARM64FeatureATOMICS indicates support for atomic instructions - // (LDADD/LDCLR/LDEOR/LDSET etc). - ARM64FeatureATOMICS - - // ARM64FeatureFPHP indicates support for half precision float point - // arithmetic. - ARM64FeatureFPHP - - // ARM64FeatureASIMDHP indicates support for ASIMD with half precision - // float point arithmetic. - ARM64FeatureASIMDHP - - // ARM64FeatureCPUID indicates support for EL0 access to certain ID - // registers is available. - ARM64FeatureCPUID - - // ARM64FeatureASIMDRDM indicates support for SQRDMLAH and SQRDMLSH - // instructions. - ARM64FeatureASIMDRDM - - // ARM64FeatureJSCVT indicates support for the FJCVTZS instruction. - ARM64FeatureJSCVT - - // ARM64FeatureFCMA indicates support for the FCMLA and FCADD - // instructions. - ARM64FeatureFCMA - - // ARM64FeatureLRCPC indicates support for the LDAPRB/LDAPRH/LDAPR - // instructions. - ARM64FeatureLRCPC - - // ARM64FeatureDCPOP indicates support for DC instruction (DC CVAP). - ARM64FeatureDCPOP - - // ARM64FeatureSHA3 indicates support for SHA3 instructions - // (EOR3/RAX1/XAR/BCAX). - ARM64FeatureSHA3 - - // ARM64FeatureSM3 indicates support for SM3 instructions - // (SM3SS1/SM3TT1A/SM3TT1B). - ARM64FeatureSM3 - - // ARM64FeatureSM4 indicates support for SM4 instructions - // (SM4E/SM4EKEY). - ARM64FeatureSM4 - - // ARM64FeatureASIMDDP indicates support for dot product instructions - // (UDOT/SDOT). - ARM64FeatureASIMDDP - - // ARM64FeatureSHA512 indicates support for SHA2 instructions - // (SHA512H/SHA512H2/SHA512SU0). - ARM64FeatureSHA512 - - // ARM64FeatureSVE indicates support for Scalable Vector Extension. - ARM64FeatureSVE - - // ARM64FeatureASIMDFHM indicates support for FMLAL and FMLSL - // instructions. - ARM64FeatureASIMDFHM -) - -var allFeatures = map[Feature]allFeatureInfo{ - ARM64FeatureFP: {"fp", true}, - ARM64FeatureASIMD: {"asimd", true}, - ARM64FeatureEVTSTRM: {"evtstrm", true}, - ARM64FeatureAES: {"aes", true}, - ARM64FeaturePMULL: {"pmull", true}, - ARM64FeatureSHA1: {"sha1", true}, - ARM64FeatureSHA2: {"sha2", true}, - ARM64FeatureCRC32: {"crc32", true}, - ARM64FeatureATOMICS: {"atomics", true}, - ARM64FeatureFPHP: {"fphp", true}, - ARM64FeatureASIMDHP: {"asimdhp", true}, - ARM64FeatureCPUID: {"cpuid", true}, - ARM64FeatureASIMDRDM: {"asimdrdm", true}, - ARM64FeatureJSCVT: {"jscvt", true}, - ARM64FeatureFCMA: {"fcma", true}, - ARM64FeatureLRCPC: {"lrcpc", true}, - ARM64FeatureDCPOP: {"dcpop", true}, - ARM64FeatureSHA3: {"sha3", true}, - ARM64FeatureSM3: {"sm3", true}, - ARM64FeatureSM4: {"sm4", true}, - ARM64FeatureASIMDDP: {"asimddp", true}, - ARM64FeatureSHA512: {"sha512", true}, - ARM64FeatureSVE: {"sve", true}, - ARM64FeatureASIMDFHM: {"asimdfhm", true}, -} - -func archFlagOrder(fn func(Feature)) { - for i := 0; i < len(allFeatures); i++ { - fn(Feature(i)) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/cpuid/native_amd64.go b/vendor/gvisor.dev/gvisor/pkg/cpuid/native_amd64.go deleted file mode 100644 index ac2fcbbcc4..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/cpuid/native_amd64.go +++ /dev/null @@ -1,229 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build amd64 -// +build amd64 - -package cpuid - -import ( - "io/ioutil" - "strconv" - "strings" - - "gvisor.dev/gvisor/pkg/log" -) - -// cpuididFunction is a useful type wrapper. The format is eax | (ecx << 32). -type cpuidFunction uint64 - -func (f cpuidFunction) eax() uint32 { - return uint32(f) -} - -func (f cpuidFunction) ecx() uint32 { - return uint32(f >> 32) -} - -// The constants below are the lower or "standard" cpuid functions, ordered as -// defined by the hardware. Note that these may not be included in the standard -// set of functions that we are allowed to execute, which are filtered in the -// Native.Query function defined below. -const ( - vendorID cpuidFunction = 0x0 // Returns vendor ID and largest standard function. - featureInfo cpuidFunction = 0x1 // Returns basic feature bits and processor signature. - intelCacheDescriptors cpuidFunction = 0x2 // Returns list of cache descriptors. Intel only. - intelSerialNumber cpuidFunction = 0x3 // Returns processor serial number (obsolete on new hardware). Intel only. - intelDeterministicCacheParams cpuidFunction = 0x4 // Returns deterministic cache information. Intel only. - monitorMwaitParams cpuidFunction = 0x5 // Returns information about monitor/mwait instructions. - powerParams cpuidFunction = 0x6 // Returns information about power management and thermal sensors. - extendedFeatureInfo cpuidFunction = 0x7 // Returns extended feature bits. - _ // Function 0x8 is reserved. - intelDCAParams cpuidFunction = 0x9 // Returns direct cache access information. Intel only. - intelPMCInfo cpuidFunction = 0xa // Returns information about performance monitoring features. Intel only. - intelX2APICInfo cpuidFunction = 0xb // Returns core/logical processor topology. Intel only. - _ // Function 0xc is reserved. - xSaveInfo cpuidFunction = 0xd // Returns information about extended state management. - xSaveInfoSub cpuidFunction = 0xd | (0x1 << 32) // Returns information about extended state management (Sub-leaf). -) - -const xSaveInfoNumLeaves = 64 // Maximum number of xSaveInfo leaves. - -// The "extended" functions. -const ( - extendedStart cpuidFunction = 0x80000000 - extendedFunctionInfo cpuidFunction = extendedStart + 0 // Returns highest available extended function in eax. - extendedFeatures = extendedStart + 1 // Returns some extended feature bits in edx and ecx. - processorBrandString2 = extendedStart + 2 // Processor Name String Identifier. - processorBrandString3 = extendedStart + 3 // Processor Name String Identifier. - processorBrandString4 = extendedStart + 4 // Processor Name String Identifier. - l1CacheAndTLBInfo = extendedStart + 5 // Returns L2 cache information. - l2CacheInfo = extendedStart + 6 // Returns L2 cache information. - addressSizes = extendedStart + 8 // Physical and virtual address sizes. -) - -var allowedBasicFunctions = [...]bool{ - vendorID: true, - featureInfo: true, - extendedFeatureInfo: true, - intelCacheDescriptors: true, - intelDeterministicCacheParams: true, - xSaveInfo: true, -} - -var allowedExtendedFunctions = [...]bool{ - extendedFunctionInfo - extendedStart: true, - extendedFeatures - extendedStart: true, - addressSizes - extendedStart: true, - processorBrandString2 - extendedStart: true, - processorBrandString3 - extendedStart: true, - processorBrandString4 - extendedStart: true, - l1CacheAndTLBInfo - extendedStart: true, - l2CacheInfo - extendedStart: true, -} - -// Function executes a CPUID function. -// -// This is typically the native function or a Static definition. -type Function interface { - Query(In) Out -} - -// Native is a native Function. -// -// This implements Function. -type Native struct{} - -// In is input to the Query function. -// -// +stateify savable -type In struct { - Eax uint32 - Ecx uint32 -} - -// normalize drops irrelevant Ecx values. -func (i *In) normalize() { - switch cpuidFunction(i.Eax) { - case vendorID, featureInfo, intelCacheDescriptors, extendedFunctionInfo, extendedFeatures: - i.Ecx = 0 // Ignore. - case processorBrandString2, processorBrandString3, processorBrandString4, l1CacheAndTLBInfo, l2CacheInfo: - i.Ecx = 0 // Ignore. - case intelDeterministicCacheParams, extendedFeatureInfo: - // Preserve i.Ecx. - } -} - -// Out is output from the Query function. -// -// +stateify savable -type Out struct { - Eax uint32 - Ebx uint32 - Ecx uint32 - Edx uint32 -} - -// native is the native Query function. -func native(In) Out - -// Query executes CPUID natively. -// -// This implements Function. -// -//go:nosplit -func (*Native) Query(in In) Out { - if int(in.Eax) < len(allowedBasicFunctions) && allowedBasicFunctions[in.Eax] { - return native(in) - } else if in.Eax >= uint32(extendedStart) { - if l := int(in.Eax - uint32(extendedStart)); l < len(allowedExtendedFunctions) && allowedExtendedFunctions[l] { - return native(in) - } - } - return Out{} // All zeros. -} - -// query is a internal wrapper. -// -//go:nosplit -func (fs FeatureSet) query(fn cpuidFunction) (uint32, uint32, uint32, uint32) { - out := fs.Query(In{Eax: fn.eax(), Ecx: fn.ecx()}) - return out.Eax, out.Ebx, out.Ecx, out.Edx -} - -var hostFeatureSet FeatureSet - -// HostFeatureSet returns a host CPUID. -// -//go:nosplit -func HostFeatureSet() FeatureSet { - return hostFeatureSet -} - -var ( - // cpuFreqMHz is the native CPU frequency. - cpuFreqMHz float64 -) - -// Reads max cpu frequency from host /proc/cpuinfo. Must run before syscall -// filter installation. This value is used to create the fake /proc/cpuinfo -// from a FeatureSet. -func readMaxCPUFreq() { - cpuinfob, err := ioutil.ReadFile("/proc/cpuinfo") - if err != nil { - // Leave it as 0... the VDSO bails out in the same way. - log.Warningf("Could not read /proc/cpuinfo: %v", err) - return - } - cpuinfo := string(cpuinfob) - - // We get the value straight from host /proc/cpuinfo. On machines with - // frequency scaling enabled, this will only get the current value - // which will likely be inaccurate. This is fine on machines with - // frequency scaling disabled. - for _, line := range strings.Split(cpuinfo, "\n") { - if strings.Contains(line, "cpu MHz") { - splitMHz := strings.Split(line, ":") - if len(splitMHz) < 2 { - log.Warningf("Could not read /proc/cpuinfo: malformed cpu MHz line") - return - } - - // If there was a problem, leave cpuFreqMHz as 0. - var err error - cpuFreqMHz, err = strconv.ParseFloat(strings.TrimSpace(splitMHz[1]), 64) - if err != nil { - log.Warningf("Could not parse cpu MHz value %v: %v", splitMHz[1], err) - cpuFreqMHz = 0 - return - } - return - } - } - log.Warningf("Could not parse /proc/cpuinfo, it is empty or does not contain cpu MHz") - -} - -// xgetbv reads an extended control register. -func xgetbv(reg uintptr) uint64 - -// archInitialize initializes hostFeatureSet. -func archInitialize() { - hostFeatureSet = FeatureSet{ - Function: &Native{}, - }.Fixed() - - readMaxCPUFreq() - initHWCap() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/cpuid/native_amd64.s b/vendor/gvisor.dev/gvisor/pkg/cpuid/native_amd64.s deleted file mode 100644 index 04a1433a91..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/cpuid/native_amd64.s +++ /dev/null @@ -1,38 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "textflag.h" - -TEXT ·native(SB),NOSPLIT|NOFRAME,$0-24 - MOVL arg_Eax+0(FP), AX - MOVL arg_Ecx+4(FP), CX - CPUID - MOVL AX, ret_Eax+8(FP) - MOVL BX, ret_Ebx+12(FP) - MOVL CX, ret_Ecx+16(FP) - MOVL DX, ret_Edx+20(FP) - RET - -// xgetbv reads an extended control register. -// -// The code corresponds to: -// -// xgetbv -// -TEXT ·xgetbv(SB),NOSPLIT|NOFRAME,$0-16 - MOVQ reg+0(FP), CX - BYTE $0x0f; BYTE $0x01; BYTE $0xd0; - MOVL AX, ret+8(FP) - MOVL DX, ret+12(FP) - RET diff --git a/vendor/gvisor.dev/gvisor/pkg/cpuid/native_arm64.go b/vendor/gvisor.dev/gvisor/pkg/cpuid/native_arm64.go deleted file mode 100644 index f09edcecea..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/cpuid/native_arm64.go +++ /dev/null @@ -1,157 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build arm64 -// +build arm64 - -package cpuid - -import ( - "io/ioutil" - "runtime" - "strconv" - "strings" - - "gvisor.dev/gvisor/pkg/log" -) - -// hostFeatureSet is initialized at startup. -// -// This is copied for HostFeatureSet, below. -var hostFeatureSet FeatureSet - -// HostFeatureSet returns a copy of the host FeatureSet. -func HostFeatureSet() FeatureSet { - return hostFeatureSet -} - -// Fixed returns the same feature set. -func (fs FeatureSet) Fixed() FeatureSet { - return fs -} - -// Reads CPU information from host /proc/cpuinfo. -// -// Must run before syscall filter installation. This value is used to create -// the fake /proc/cpuinfo from a FeatureSet. -func initCPUInfo() { - if runtime.GOOS != "linux" { - // Don't try to read Linux-specific /proc files or - // warn about them not existing. - return - } - cpuinfob, err := ioutil.ReadFile("/proc/cpuinfo") - if err != nil { - // Leave everything at 0, nothing can be done. - log.Warningf("Could not read /proc/cpuinfo: %v", err) - return - } - cpuinfo := string(cpuinfob) - - // We get the value straight from host /proc/cpuinfo. - for _, line := range strings.Split(cpuinfo, "\n") { - switch { - case strings.Contains(line, "BogoMIPS"): - splitMHz := strings.Split(line, ":") - if len(splitMHz) < 2 { - log.Warningf("Could not read /proc/cpuinfo: malformed BogoMIPS") - break - } - - // If there was a problem, leave cpuFreqMHz as 0. - var err error - hostFeatureSet.cpuFreqMHz, err = strconv.ParseFloat(strings.TrimSpace(splitMHz[1]), 64) - if err != nil { - hostFeatureSet.cpuFreqMHz = 0.0 - log.Warningf("Could not parse BogoMIPS value %v: %v", splitMHz[1], err) - } - case strings.Contains(line, "CPU implementer"): - splitImpl := strings.Split(line, ":") - if len(splitImpl) < 2 { - log.Warningf("Could not read /proc/cpuinfo: malformed CPU implementer") - break - } - - // If there was a problem, leave cpuImplHex as 0. - var err error - hostFeatureSet.cpuImplHex, err = strconv.ParseUint(strings.TrimSpace(splitImpl[1]), 0, 64) - if err != nil { - hostFeatureSet.cpuImplHex = 0 - log.Warningf("Could not parse CPU implementer value %v: %v", splitImpl[1], err) - } - case strings.Contains(line, "CPU architecture"): - splitArch := strings.Split(line, ":") - if len(splitArch) < 2 { - log.Warningf("Could not read /proc/cpuinfo: malformed CPU architecture") - break - } - - // If there was a problem, leave cpuArchDec as 0. - var err error - hostFeatureSet.cpuArchDec, err = strconv.ParseUint(strings.TrimSpace(splitArch[1]), 0, 64) - if err != nil { - hostFeatureSet.cpuArchDec = 0 - log.Warningf("Could not parse CPU architecture value %v: %v", splitArch[1], err) - } - case strings.Contains(line, "CPU variant"): - splitVar := strings.Split(line, ":") - if len(splitVar) < 2 { - log.Warningf("Could not read /proc/cpuinfo: malformed CPU variant") - break - } - - // If there was a problem, leave cpuVarHex as 0. - var err error - hostFeatureSet.cpuVarHex, err = strconv.ParseUint(strings.TrimSpace(splitVar[1]), 0, 64) - if err != nil { - hostFeatureSet.cpuVarHex = 0 - log.Warningf("Could not parse CPU variant value %v: %v", splitVar[1], err) - } - case strings.Contains(line, "CPU part"): - splitPart := strings.Split(line, ":") - if len(splitPart) < 2 { - log.Warningf("Could not read /proc/cpuinfo: malformed CPU part") - break - } - - // If there was a problem, leave cpuPartHex as 0. - var err error - hostFeatureSet.cpuPartHex, err = strconv.ParseUint(strings.TrimSpace(splitPart[1]), 0, 64) - if err != nil { - hostFeatureSet.cpuPartHex = 0 - log.Warningf("Could not parse CPU part value %v: %v", splitPart[1], err) - } - case strings.Contains(line, "CPU revision"): - splitRev := strings.Split(line, ":") - if len(splitRev) < 2 { - log.Warningf("Could not read /proc/cpuinfo: malformed CPU revision") - break - } - - // If there was a problem, leave cpuRevDec as 0. - var err error - hostFeatureSet.cpuRevDec, err = strconv.ParseUint(strings.TrimSpace(splitRev[1]), 0, 64) - if err != nil { - hostFeatureSet.cpuRevDec = 0 - log.Warningf("Could not parse CPU revision value %v: %v", splitRev[1], err) - } - } - } -} - -// archInitialize initializes hostFeatureSet. -func archInitialize() { - initCPUInfo() - initHWCap() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/cpuid/static_amd64.go b/vendor/gvisor.dev/gvisor/pkg/cpuid/static_amd64.go deleted file mode 100644 index f21f2e4fb6..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/cpuid/static_amd64.go +++ /dev/null @@ -1,133 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build amd64 -// +build amd64 - -package cpuid - -import "context" - -// Static is a static CPUID function. -// -// +stateify savable -type Static map[In]Out - -// Fixed converts the FeatureSet to a fixed set. -func (fs FeatureSet) Fixed() FeatureSet { - return fs.ToStatic().ToFeatureSet() -} - -// ToStatic converts a FeatureSet to a Static function. -// -// You can create a new static feature set as: -// -// fs := otherFeatureSet.ToStatic().ToFeatureSet() -func (fs FeatureSet) ToStatic() Static { - s := make(Static) - - // Save all allowed top-level functions. - for fn, allowed := range allowedBasicFunctions { - if allowed { - in := In{Eax: uint32(fn)} - s[in] = fs.Query(in) - } - } - - // Save all allowed extended functions. - for fn, allowed := range allowedExtendedFunctions { - if allowed { - in := In{Eax: uint32(fn) + uint32(extendedStart)} - s[in] = fs.Query(in) - } - } - - // Save all features (may be redundant). - for feature := range allFeatures { - feature.set(s, fs.HasFeature(feature)) - } - - // Processor Extended State Enumeration. - for i := uint32(0); i < xSaveInfoNumLeaves; i++ { - in := In{Eax: uint32(xSaveInfo), Ecx: i} - s[in] = fs.Query(in) - } - - // Save all cache information. - out := fs.Query(In{Eax: uint32(featureInfo)}) - for i := uint32(0); i < out.Ecx; i++ { - in := In{Eax: uint32(intelDeterministicCacheParams), Ecx: i} - out := fs.Query(in) - s[in] = out - if CacheType(out.Eax&0xf) == cacheNull { - break - } - } - - return s -} - -// ToFeatureSet converts a static specification to a FeatureSet. -// -// This overloads some local values, where required. -func (s Static) ToFeatureSet() FeatureSet { - // Make a copy. - ns := make(Static) - for k, v := range s { - ns[k] = v - } - ns.normalize() - return FeatureSet{ns, hwCap{}} -} - -// afterLoad calls normalize. -func (s Static) afterLoad(context.Context) { - s.normalize() -} - -// normalize normalizes FPU sizes. -func (s Static) normalize() { - // Override local FPU sizes, which must be fixed. - fs := FeatureSet{s, hwCap{}} - if fs.HasFeature(X86FeatureXSAVE) { - in := In{Eax: uint32(xSaveInfo)} - out := s[in] - out.Ecx = maxXsaveSize - out.Ebx = xsaveSize - s[in] = out - } -} - -// Add adds a feature. -func (s Static) Add(feature Feature) Static { - feature.set(s, true) - return s -} - -// Remove removes a feature. -func (s Static) Remove(feature Feature) Static { - feature.set(s, false) - return s -} - -// Set implements ChangeableSet.Set. -func (s Static) Set(in In, out Out) { - s[in] = out -} - -// Query implements Function.Query. -func (s Static) Query(in In) Out { - in.normalize() - return s[in] -} diff --git a/vendor/gvisor.dev/gvisor/pkg/gohacks/linkname_go113_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/gohacks/linkname_go113_unsafe.go deleted file mode 100644 index 2e8c465294..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/gohacks/linkname_go113_unsafe.go +++ /dev/null @@ -1,51 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build go1.13 - -// //go:linkname directives type-checked by checklinkname. Any other -// non-linkname assumptions outside the Go 1 compatibility guarantee should -// have an accompanied vet check or version guard build tag. - -// Package gohacks contains utilities for subverting the Go compiler. -package gohacks - -import ( - "unsafe" -) - -// Note that go:linkname silently doesn't work if the local name is exported, -// necessitating an indirection for exported functions. - -// Memmove is runtime.memmove, exported for SeqAtomicLoad/SeqAtomicTryLoad. -// -//go:nosplit -func Memmove(to, from unsafe.Pointer, n uintptr) { - memmove(to, from, n) -} - -//go:linkname memmove runtime.memmove -//go:noescape -func memmove(to, from unsafe.Pointer, n uintptr) - -// Nanotime is runtime.nanotime. -// -//go:nosplit -func Nanotime() int64 { - return nanotime() -} - -//go:linkname nanotime runtime.nanotime -//go:noescape -func nanotime() int64 diff --git a/vendor/gvisor.dev/gvisor/pkg/gohacks/noescape_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/gohacks/noescape_unsafe.go deleted file mode 100644 index e6470e33de..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/gohacks/noescape_unsafe.go +++ /dev/null @@ -1,34 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package gohacks - -import ( - "unsafe" -) - -// Noescape hides a pointer from escape analysis. Noescape is the identity -// function but escape analysis doesn't think the output depends on the input. -// Noescape is inlined and currently compiles down to zero instructions. -// USE CAREFULLY! -// -// Noescape is copy/pasted from Go's runtime/stubs.go:noescape(), and is valid -// as of Go 1.20. It is possible that this approach stops working in future -// versions of the toolchain, at which point `p` may still escape. -// -//go:nosplit -func Noescape(p unsafe.Pointer) unsafe.Pointer { - x := uintptr(p) - return unsafe.Pointer(x ^ 0) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/gohacks/slice_go113_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/gohacks/slice_go113_unsafe.go deleted file mode 100644 index 8ee39f560f..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/gohacks/slice_go113_unsafe.go +++ /dev/null @@ -1,45 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build go1.13 && !go1.20 -// +build go1.13,!go1.20 - -// TODO(go.dev/issue/8422): Remove this once Go 1.19 is no longer supported, -// and update callers to use unsafe.Slice directly. - -package gohacks - -import ( - "unsafe" -) - -// sliceHeader is equivalent to reflect.SliceHeader, but represents the pointer -// to the underlying array as unsafe.Pointer rather than uintptr, allowing -// sliceHeaders to be directly converted to slice objects. -type sliceHeader struct { - Data unsafe.Pointer - Len int - Cap int -} - -// Slice returns a slice whose underlying array starts at ptr an which length -// and capacity are len. -func Slice[T any](ptr *T, length int) []T { - var s []T - hdr := (*sliceHeader)(unsafe.Pointer(&s)) - hdr.Data = unsafe.Pointer(ptr) - hdr.Len = length - hdr.Cap = length - return s -} diff --git a/vendor/gvisor.dev/gvisor/pkg/gohacks/slice_go120_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/gohacks/slice_go120_unsafe.go deleted file mode 100644 index 9778db863a..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/gohacks/slice_go120_unsafe.go +++ /dev/null @@ -1,30 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build go1.20 - -package gohacks - -import ( - "unsafe" -) - -// Slice returns a slice whose underlying array starts at ptr an which length -// and capacity are len. -// -// Slice is a wrapper around unsafe.Slice. Prefer to use unsafe.Slice directly -// if possible. -func Slice[T any](ptr *T, length int) []T { - return unsafe.Slice(ptr, length) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/gohacks/string_go113_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/gohacks/string_go113_unsafe.go deleted file mode 100644 index dceeaf5763..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/gohacks/string_go113_unsafe.go +++ /dev/null @@ -1,51 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build go1.13 && !go1.20 -// +build go1.13,!go1.20 - -// TODO(go.dev/issue/8422): Remove this file once Go 1.19 is no longer -// supported. - -package gohacks - -import ( - "unsafe" -) - -// stringHeader is equivalent to reflect.StringHeader, but represents the -// pointer to the underlying array as unsafe.Pointer rather than uintptr, -// allowing StringHeaders to be directly converted to strings. -type stringHeader struct { - Data unsafe.Pointer - Len int -} - -// ImmutableBytesFromString is equivalent to []byte(s), except that it uses the -// same memory backing s instead of making a heap-allocated copy. This is only -// valid if the returned slice is never mutated. -func ImmutableBytesFromString(s string) []byte { - shdr := (*stringHeader)(unsafe.Pointer(&s)) - return Slice((*byte)(shdr.Data), shdr.Len) -} - -// StringFromImmutableBytes is equivalent to string(bs), except that it uses -// the same memory backing bs instead of making a heap-allocated copy. This is -// only valid if bs is never mutated after StringFromImmutableBytes returns. -func StringFromImmutableBytes(bs []byte) string { - // This is cheaper than messing with StringHeader and SliceHeader, which as - // of this writing produces many dead stores of zeroes. Compare - // strings.Builder.String(). - return *(*string)(unsafe.Pointer(&bs)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/gohacks/string_go120_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/gohacks/string_go120_unsafe.go deleted file mode 100644 index 9005efd6a8..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/gohacks/string_go120_unsafe.go +++ /dev/null @@ -1,39 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build go1.20 - -package gohacks - -import ( - "unsafe" -) - -// ImmutableBytesFromString is equivalent to []byte(s), except that it uses the -// same memory backing s instead of making a heap-allocated copy. This is only -// valid if the returned slice is never mutated. -func ImmutableBytesFromString(s string) []byte { - b := unsafe.StringData(s) - return unsafe.Slice(b, len(s)) -} - -// StringFromImmutableBytes is equivalent to string(bs), except that it uses -// the same memory backing bs instead of making a heap-allocated copy. This is -// only valid if bs is never mutated after StringFromImmutableBytes returns. -func StringFromImmutableBytes(bs []byte) string { - if len(bs) == 0 { - return "" - } - return unsafe.String(&bs[0], len(bs)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/goid/goid.go b/vendor/gvisor.dev/gvisor/pkg/goid/goid.go deleted file mode 100644 index 1531761593..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/goid/goid.go +++ /dev/null @@ -1,28 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package goid provides the Get function. -package goid - -import ( - _ "runtime" // For facts in assembly files. -) - -// goid returns the current goid, it is defined in assembly. -func goid() int64 - -// Get returns the ID of the current goroutine. -func Get() int64 { - return goid() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/goid/goid_122_amd64.s b/vendor/gvisor.dev/gvisor/pkg/goid/goid_122_amd64.s deleted file mode 100644 index 5039f73f27..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/goid/goid_122_amd64.s +++ /dev/null @@ -1,26 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build !go1.23 - -#include "textflag.h" - -#define GOID_OFFSET 152 // +checkoffset runtime g.goid - -// func goid() int64 -TEXT ·goid(SB),NOSPLIT|NOFRAME,$0-8 - MOVQ (TLS), R14 - MOVQ GOID_OFFSET(R14), R14 - MOVQ R14, ret+0(FP) - RET diff --git a/vendor/gvisor.dev/gvisor/pkg/goid/goid_122_arm64.s b/vendor/gvisor.dev/gvisor/pkg/goid/goid_122_arm64.s deleted file mode 100644 index ec59b4beba..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/goid/goid_122_arm64.s +++ /dev/null @@ -1,26 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build !go1.23 - -#include "textflag.h" - -#define GOID_OFFSET 152 // +checkoffset runtime g.goid - -// func goid() int64 -TEXT ·goid(SB),NOSPLIT,$0-8 - MOVD g, R0 // g - MOVD GOID_OFFSET(R0), R0 - MOVD R0, ret+0(FP) - RET diff --git a/vendor/gvisor.dev/gvisor/pkg/goid/goid_123_amd64.s b/vendor/gvisor.dev/gvisor/pkg/goid/goid_123_amd64.s deleted file mode 100644 index 9f53a4e971..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/goid/goid_123_amd64.s +++ /dev/null @@ -1,26 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build go1.23 - -#include "textflag.h" - -#define GOID_OFFSET 160 // +checkoffset runtime g.goid - -// func goid() int64 -TEXT ·goid(SB),NOSPLIT|NOFRAME,$0-8 - MOVQ (TLS), R14 - MOVQ GOID_OFFSET(R14), R14 - MOVQ R14, ret+0(FP) - RET diff --git a/vendor/gvisor.dev/gvisor/pkg/goid/goid_123_arm64.s b/vendor/gvisor.dev/gvisor/pkg/goid/goid_123_arm64.s deleted file mode 100644 index 08d70578bf..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/goid/goid_123_arm64.s +++ /dev/null @@ -1,26 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build go1.23 - -#include "textflag.h" - -#define GOID_OFFSET 160 // +checkoffset runtime g.goid - -// func goid() int64 -TEXT ·goid(SB),NOSPLIT,$0-8 - MOVD g, R0 // g - MOVD GOID_OFFSET(R0), R0 - MOVD R0, ret+0(FP) - RET diff --git a/vendor/gvisor.dev/gvisor/pkg/linewriter/linewriter.go b/vendor/gvisor.dev/gvisor/pkg/linewriter/linewriter.go deleted file mode 100644 index a1b1285d48..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/linewriter/linewriter.go +++ /dev/null @@ -1,79 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package linewriter provides an io.Writer which calls an emitter on each line. -package linewriter - -import ( - "bytes" - - "gvisor.dev/gvisor/pkg/sync" -) - -// Writer is an io.Writer which buffers input, flushing -// individual lines through an emitter function. -type Writer struct { - // the mutex locks buf. - sync.Mutex - - // buf holds the data we haven't emitted yet. - buf bytes.Buffer - - // emit is used to flush individual lines. - emit func(p []byte) -} - -// NewWriter creates a Writer which emits using emitter. -// The emitter must not retain p. It may change after emitter returns. -func NewWriter(emitter func(p []byte)) *Writer { - return &Writer{emit: emitter} -} - -// Write implements io.Writer.Write. -// It calls emit on each line of input, not including the newline. -// Write may be called concurrently. -func (w *Writer) Write(p []byte) (int, error) { - w.Lock() - defer w.Unlock() - - total := 0 - for len(p) > 0 { - emit := true - i := bytes.IndexByte(p, '\n') - if i < 0 { - // No newline, we will buffer everything. - i = len(p) - emit = false - } - - n, err := w.buf.Write(p[:i]) - if err != nil { - return total, err - } - total += n - - p = p[i:] - - if emit { - // Skip the newline, but still count it. - p = p[1:] - total++ - - w.emit(w.buf.Bytes()) - w.buf.Reset() - } - } - - return total, nil -} diff --git a/vendor/gvisor.dev/gvisor/pkg/log/glog.go b/vendor/gvisor.dev/gvisor/pkg/log/glog.go deleted file mode 100644 index 553f7feb69..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/log/glog.go +++ /dev/null @@ -1,86 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package log - -import ( - "fmt" - "os" - "runtime" - "strings" - "time" -) - -// GoogleEmitter is a wrapper that emits logs in a format compatible with -// package github.com/golang/glog. -type GoogleEmitter struct { - *Writer -} - -// pid is used for the threadid component of the header. -var pid = os.Getpid() - -// Emit emits the message, google-style. -// -// Log lines have this form: -// -// Lmmdd hh:mm:ss.uuuuuu threadid file:line] msg... -// -// where the fields are defined as follows: -// -// L A single character, representing the log level (eg 'I' for INFO) -// mm The month (zero padded; ie May is '05') -// dd The day (zero padded) -// hh:mm:ss.uuuuuu Time in hours, minutes and fractional seconds -// threadid The space-padded thread ID as returned by GetTID() -// file The file name -// line The line number -// msg The user-supplied message -func (g GoogleEmitter) Emit(depth int, level Level, timestamp time.Time, format string, args ...any) { - // Log level. - prefix := byte('?') - switch level { - case Debug: - prefix = byte('D') - case Info: - prefix = byte('I') - case Warning: - prefix = byte('W') - } - - // Timestamp. - _, month, day := timestamp.Date() - hour, minute, second := timestamp.Clock() - microsecond := int(timestamp.Nanosecond() / 1000) - - // 0 = this frame. - _, file, line, ok := runtime.Caller(depth + 1) - if ok { - // Trim any directory path from the file. - slash := strings.LastIndexByte(file, byte('/')) - if slash >= 0 { - file = file[slash+1:] - } - } else { - // We don't have a filename. - file = "???" - line = 0 - } - - // Generate the message. - message := fmt.Sprintf(format, args...) - - // Emit the formatted result. - fmt.Fprintf(g.Writer, "%c%02d%02d %02d:%02d:%02d.%06d % 7d %s:%d] %s\n", prefix, int(month), day, hour, minute, second, microsecond, pid, file, line, message) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/log/json.go b/vendor/gvisor.dev/gvisor/pkg/log/json.go deleted file mode 100644 index a57bc101f6..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/log/json.go +++ /dev/null @@ -1,85 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package log - -import ( - "encoding/json" - "fmt" - "runtime" - "strings" - "time" -) - -type jsonLog struct { - Msg string `json:"msg"` - Level Level `json:"level"` - Time time.Time `json:"time"` -} - -// MarshalJSON implements json.Marshaler.MarashalJSON. -func (l Level) MarshalJSON() ([]byte, error) { - switch l { - case Warning: - return []byte(`"warning"`), nil - case Info: - return []byte(`"info"`), nil - case Debug: - return []byte(`"debug"`), nil - default: - return nil, fmt.Errorf("unknown level %v", l) - } -} - -// UnmarshalJSON implements json.Unmarshaler.UnmarshalJSON. It can unmarshal -// from both string names and integers. -func (l *Level) UnmarshalJSON(b []byte) error { - switch s := string(b); s { - case "0", `"warning"`: - *l = Warning - case "1", `"info"`: - *l = Info - case "2", `"debug"`: - *l = Debug - default: - return fmt.Errorf("unknown level %q", s) - } - return nil -} - -// JSONEmitter logs messages in json format. -type JSONEmitter struct { - *Writer -} - -// Emit implements Emitter.Emit. -func (e JSONEmitter) Emit(depth int, level Level, timestamp time.Time, format string, v ...any) { - logLine := fmt.Sprintf(format, v...) - if _, file, line, ok := runtime.Caller(depth + 1); ok { - if slash := strings.LastIndexByte(file, byte('/')); slash >= 0 { - file = file[slash+1:] // Trim any directory path from the file. - } - logLine = fmt.Sprintf("%s:%d] %s", file, line, logLine) - } - j := jsonLog{ - Msg: logLine, - Level: level, - Time: timestamp, - } - b, err := json.Marshal(j) - if err != nil { - panic(err) - } - e.Writer.Write(b) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/log/json_k8s.go b/vendor/gvisor.dev/gvisor/pkg/log/json_k8s.go deleted file mode 100644 index 8f5aab5a97..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/log/json_k8s.go +++ /dev/null @@ -1,56 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package log - -import ( - "encoding/json" - "fmt" - "runtime" - "strings" - "time" -) - -type k8sJSONLog struct { - Log string `json:"log"` - Level Level `json:"level"` - Time time.Time `json:"time"` -} - -// K8sJSONEmitter logs messages in json format that is compatible with -// Kubernetes fluent configuration. -type K8sJSONEmitter struct { - *Writer -} - -// Emit implements Emitter.Emit. -func (e K8sJSONEmitter) Emit(depth int, level Level, timestamp time.Time, format string, v ...any) { - logLine := fmt.Sprintf(format, v...) - if _, file, line, ok := runtime.Caller(depth + 1); ok { - if slash := strings.LastIndexByte(file, byte('/')); slash >= 0 { - file = file[slash+1:] // Trim any directory path from the file. - } - logLine = fmt.Sprintf("%s:%d] %s", file, line, logLine) - } - j := k8sJSONLog{ - Log: logLine, - Level: level, - Time: timestamp, - } - b, err := json.Marshal(j) - if err != nil { - panic(err) - } - e.Writer.Write(b) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/log/log.go b/vendor/gvisor.dev/gvisor/pkg/log/log.go deleted file mode 100644 index 581aa77c75..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/log/log.go +++ /dev/null @@ -1,399 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package log implements a library for logging. -// -// This is separate from the standard logging package because logging may be a -// high-impact activity, and therefore we wanted to provide as much flexibility -// as possible in the underlying implementation. -// -// Note that logging should still be considered high-impact, and should not be -// done in the hot path. If necessary, logging statements should be protected -// with guards regarding the logging level. For example, -// -// if log.IsLogging(log.Debug) { -// log.Debugf(...) -// } -// -// This is because the log.Debugf(...) statement alone will generate a -// significant amount of garbage and churn in many cases, even if no log -// message is ultimately emitted. -// -// +checkalignedignore -package log - -import ( - "fmt" - "io" - stdlog "log" - "os" - "regexp" - "runtime" - "sync/atomic" - "time" - - "gvisor.dev/gvisor/pkg/linewriter" - "gvisor.dev/gvisor/pkg/sync" -) - -// Level is the log level. -type Level uint32 - -// The following levels are fixed, and can never be changed. Since some control -// RPCs allow for changing the level as an integer, it is only possible to add -// additional levels, and the existing one cannot be removed. -const ( - // Warning indicates that output should always be emitted. - Warning Level = iota - - // Info indicates that output should normally be emitted. - Info - - // Debug indicates that output should not normally be emitted. - Debug -) - -func (l Level) String() string { - switch l { - case Warning: - return "Warning" - case Info: - return "Info" - case Debug: - return "Debug" - default: - return fmt.Sprintf("Invalid level: %d", l) - } -} - -// Emitter is the final destination for logs. -type Emitter interface { - // Emit emits the given log statement. This allows for control over the - // timestamp used for logging. - Emit(depth int, level Level, timestamp time.Time, format string, v ...any) -} - -// Writer writes the output to the given writer. -type Writer struct { - // Next is where output is written. - Next io.Writer - - // mu protects fields below. - mu sync.Mutex - - // errors counts failures to write log messages so it can be reported - // when writer start to work again. Needs to be accessed using atomics - // to make race detector happy because it's read outside the mutex. - // +checklocks - atomicErrors int32 -} - -// Write writes out the given bytes, handling non-blocking sockets. -func (l *Writer) Write(data []byte) (int, error) { - n := 0 - - for n < len(data) { - w, err := l.Next.Write(data[n:]) - n += w - - // Is it a non-blocking socket? - if pathErr, ok := err.(*os.PathError); ok && pathErr.Timeout() { - runtime.Gosched() - continue - } - - // Some other error? - if err != nil { - l.mu.Lock() - atomic.AddInt32(&l.atomicErrors, 1) - l.mu.Unlock() - return n, err - } - } - - // Do we need to end with a '\n'? - if len(data) == 0 || data[len(data)-1] != '\n' { - l.Write([]byte{'\n'}) - } - - // Dirty read in case there were errors (rare). - if atomic.LoadInt32(&l.atomicErrors) > 0 { - l.mu.Lock() - defer l.mu.Unlock() - - // Recheck condition under lock. - if e := atomic.LoadInt32(&l.atomicErrors); e > 0 { - msg := fmt.Sprintf("\n*** Dropped %d log messages ***\n", e) - if _, err := l.Next.Write([]byte(msg)); err == nil { - atomic.StoreInt32(&l.atomicErrors, 0) - } - } - } - - return n, nil -} - -// Emit emits the message. -func (l *Writer) Emit(_ int, _ Level, _ time.Time, format string, args ...any) { - fmt.Fprintf(l, format, args...) -} - -// MultiEmitter is an emitter that emits to multiple Emitters. -type MultiEmitter []Emitter - -// Emit emits to all emitters. -func (m *MultiEmitter) Emit(depth int, level Level, timestamp time.Time, format string, v ...any) { - for _, e := range *m { - e.Emit(1+depth, level, timestamp, format, v...) - } -} - -// TestLogger is implemented by testing.T and testing.B. -type TestLogger interface { - Logf(format string, v ...any) -} - -// TestEmitter may be used for wrapping tests. -type TestEmitter struct { - TestLogger -} - -// Emit emits to the TestLogger. -func (t *TestEmitter) Emit(_ int, level Level, timestamp time.Time, format string, v ...any) { - t.Logf(format, v...) -} - -// Logger is a high-level logging interface. It is in fact, not used within the -// log package. Rather it is provided for others to provide contextual loggers -// that may append some addition information to log statement. BasicLogger -// satisfies this interface, and may be passed around as a Logger. -type Logger interface { - // Debugf logs a debug statement. - Debugf(format string, v ...any) - - // Infof logs at an info level. - Infof(format string, v ...any) - - // Warningf logs at a warning level. - Warningf(format string, v ...any) - - // IsLogging returns true iff this level is being logged. This may be - // used to short-circuit expensive operations for debugging calls. - IsLogging(level Level) bool -} - -// BasicLogger is the default implementation of Logger. -type BasicLogger struct { - Level - Emitter -} - -// Debugf implements logger.Debugf. -func (l *BasicLogger) Debugf(format string, v ...any) { - l.DebugfAtDepth(1, format, v...) -} - -// Infof implements logger.Infof. -func (l *BasicLogger) Infof(format string, v ...any) { - l.InfofAtDepth(1, format, v...) -} - -// Warningf implements logger.Warningf. -func (l *BasicLogger) Warningf(format string, v ...any) { - l.WarningfAtDepth(1, format, v...) -} - -// DebugfAtDepth logs at a specific depth. -func (l *BasicLogger) DebugfAtDepth(depth int, format string, v ...any) { - if l.IsLogging(Debug) { - l.Emit(1+depth, Debug, time.Now(), format, v...) - } -} - -// InfofAtDepth logs at a specific depth. -func (l *BasicLogger) InfofAtDepth(depth int, format string, v ...any) { - if l.IsLogging(Info) { - l.Emit(1+depth, Info, time.Now(), format, v...) - } -} - -// WarningfAtDepth logs at a specific depth. -func (l *BasicLogger) WarningfAtDepth(depth int, format string, v ...any) { - if l.IsLogging(Warning) { - l.Emit(1+depth, Warning, time.Now(), format, v...) - } -} - -// IsLogging implements logger.IsLogging. -func (l *BasicLogger) IsLogging(level Level) bool { - return atomic.LoadUint32((*uint32)(&l.Level)) >= uint32(level) -} - -// SetLevel sets the logging level. -func (l *BasicLogger) SetLevel(level Level) { - atomic.StoreUint32((*uint32)(&l.Level), uint32(level)) -} - -// logMu protects Log below. We use atomic operations to read the value, but -// updates require logMu to ensure consistency. -var logMu sync.Mutex - -// log is the default logger. -var log atomic.Pointer[BasicLogger] - -// Log retrieves the global logger. -func Log() *BasicLogger { - return log.Load() -} - -// SetTarget sets the log target. -// -// This is not thread safe and shouldn't be called concurrently with any -// logging calls. -// -// SetTarget should be called before any instances of log.Log() to avoid race conditions -func SetTarget(target Emitter) { - logMu.Lock() - defer logMu.Unlock() - oldLog := Log() - log.Store(&BasicLogger{Level: oldLog.Level, Emitter: target}) -} - -// SetLevel sets the log level. -func SetLevel(newLevel Level) { - Log().SetLevel(newLevel) -} - -// Debugf logs to the global logger. -func Debugf(format string, v ...any) { - Log().DebugfAtDepth(1, format, v...) -} - -// Infof logs to the global logger. -func Infof(format string, v ...any) { - Log().InfofAtDepth(1, format, v...) -} - -// Warningf logs to the global logger. -func Warningf(format string, v ...any) { - Log().WarningfAtDepth(1, format, v...) -} - -// DebugfAtDepth logs to the global logger. -func DebugfAtDepth(depth int, format string, v ...any) { - Log().DebugfAtDepth(1+depth, format, v...) -} - -// InfofAtDepth logs to the global logger. -func InfofAtDepth(depth int, format string, v ...any) { - Log().InfofAtDepth(1+depth, format, v...) -} - -// WarningfAtDepth logs to the global logger. -func WarningfAtDepth(depth int, format string, v ...any) { - Log().WarningfAtDepth(1+depth, format, v...) -} - -// defaultStackSize is the default buffer size to allocate for stack traces. -const defaultStackSize = 1 << 16 // 64KB - -// maxStackSize is the maximum buffer size to allocate for stack traces. -const maxStackSize = 1 << 26 // 64MB - -// Stacks returns goroutine stacks, like panic. -func Stacks(all bool) []byte { - var trace []byte - for s := defaultStackSize; s <= maxStackSize; s *= 4 { - trace = make([]byte, s) - nbytes := runtime.Stack(trace, all) - if nbytes == s { - continue - } - return trace[:nbytes] - } - trace = append(trace, []byte("\n\n...")...) - return trace -} - -// stackRegexp matches one level within a stack trace. -var stackRegexp = regexp.MustCompile("(?m)^\\S+\\(.*\\)$\\r?\\n^\\t\\S+:\\d+.*$\\r?\\n") - -// LocalStack returns the local goroutine stack, excluding the top N entries. -// LocalStack's own entry is excluded by default and does not need to be counted in excludeTopN. -func LocalStack(excludeTopN int) []byte { - replaceNext := excludeTopN + 1 - return stackRegexp.ReplaceAllFunc(Stacks(false), func(s []byte) []byte { - if replaceNext > 0 { - replaceNext-- - return nil - } - return s - }) -} - -// Traceback logs the given message and dumps a stacktrace of the current -// goroutine. -// -// This will be print a traceback, tb, as Warningf(format+":\n%s", v..., tb). -func Traceback(format string, v ...any) { - v = append(v, Stacks(false)) - Warningf(format+":\n%s", v...) -} - -// TracebackAll logs the given message and dumps a stacktrace of all goroutines. -// -// This will be print a traceback, tb, as Warningf(format+":\n%s", v..., tb). -func TracebackAll(format string, v ...any) { - v = append(v, Stacks(true)) - Warningf(format+":\n%s", v...) -} - -// IsLogging returns whether the global logger is logging. -func IsLogging(level Level) bool { - return Log().IsLogging(level) -} - -// CopyStandardLogTo redirects the stdlib log package global output to the global -// logger for the specified level. -func CopyStandardLogTo(l Level) error { - var f func(string, ...any) - - switch l { - case Debug: - f = Debugf - case Info: - f = Infof - case Warning: - f = Warningf - default: - return fmt.Errorf("unknown log level %v", l) - } - - stdlog.SetOutput(linewriter.NewWriter(func(p []byte) { - // We must not retain p, but log formatting is not required to - // be synchronous (though the in-package implementations are), - // so we must make a copy. - b := make([]byte, len(p)) - copy(b, p) - - f("%s", b) - })) - - return nil -} - -func init() { - // Store the initial value for the log. - log.Store(&BasicLogger{Level: Info, Emitter: GoogleEmitter{&Writer{Next: os.Stderr}}}) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/log/rate_limited.go b/vendor/gvisor.dev/gvisor/pkg/log/rate_limited.go deleted file mode 100644 index e274238dce..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/log/rate_limited.go +++ /dev/null @@ -1,63 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package log - -import ( - "time" - - "golang.org/x/time/rate" -) - -type rateLimitedLogger struct { - logger Logger - limit *rate.Limiter -} - -func (rl *rateLimitedLogger) Debugf(format string, v ...any) { - if rl.limit.Allow() { - rl.logger.Debugf(format, v...) - } -} - -func (rl *rateLimitedLogger) Infof(format string, v ...any) { - if rl.limit.Allow() { - rl.logger.Infof(format, v...) - } -} - -func (rl *rateLimitedLogger) Warningf(format string, v ...any) { - if rl.limit.Allow() { - rl.logger.Warningf(format, v...) - } -} - -func (rl *rateLimitedLogger) IsLogging(level Level) bool { - return rl.logger.IsLogging(level) -} - -// BasicRateLimitedLogger returns a Logger that logs to the global logger no -// more than once per the provided duration. -func BasicRateLimitedLogger(every time.Duration) Logger { - return RateLimitedLogger(Log(), every) -} - -// RateLimitedLogger returns a Logger that logs to the provided logger no more -// than once per the provided duration. -func RateLimitedLogger(logger Logger, every time.Duration) Logger { - return &rateLimitedLogger{ - logger: logger, - limit: rate.NewLimiter(rate.Every(every), 1), - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/rand/rand.go b/vendor/gvisor.dev/gvisor/pkg/rand/rand.go deleted file mode 100644 index 94d2764d69..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/rand/rand.go +++ /dev/null @@ -1,28 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build !linux -// +build !linux - -package rand - -import "crypto/rand" - -// Reader is the default reader. -var Reader = rand.Reader - -// Read implements io.Reader.Read. -func Read(b []byte) (int, error) { - return rand.Read(b) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/rand/rand_linux.go b/vendor/gvisor.dev/gvisor/pkg/rand/rand_linux.go deleted file mode 100644 index 0913e8b006..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/rand/rand_linux.go +++ /dev/null @@ -1,82 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package rand - -import ( - "bufio" - "crypto/rand" - "io" - - "golang.org/x/sys/unix" - "gvisor.dev/gvisor/pkg/sync" -) - -// reader implements an io.Reader that returns pseudorandom bytes. -type reader struct { - once sync.Once - useGetrandom bool -} - -// Read implements io.Reader.Read. -func (r *reader) Read(p []byte) (int, error) { - r.once.Do(func() { - _, err := unix.Getrandom(p, 0) - if err != unix.ENOSYS { - r.useGetrandom = true - } - }) - - if r.useGetrandom { - return unix.Getrandom(p, 0) - } - return rand.Read(p) -} - -// bufferedReader implements a threadsafe buffered io.Reader. -type bufferedReader struct { - mu sync.Mutex - r *bufio.Reader -} - -// Read implements io.Reader.Read. -func (b *bufferedReader) Read(p []byte) (int, error) { - // In Linux, reads of up to page size bytes will always complete fully. - // See drivers/char/random.c:get_random_bytes_user(). - // NOTE(gvisor.dev/issue/9445): Some applications rely on this behavior. - const pageSize = 4096 - min := len(p) - if min > pageSize { - min = pageSize - } - b.mu.Lock() - defer b.mu.Unlock() - return io.ReadAtLeast(b.r, p, min) -} - -// Reader is the default reader. -var Reader io.Reader = &bufferedReader{r: bufio.NewReader(&reader{})} - -// Read reads from the default reader. -func Read(b []byte) (int, error) { - return io.ReadFull(Reader, b) -} - -// Init can be called to make sure /dev/urandom is pre-opened on kernels that -// do not support getrandom(2). -func Init() error { - p := make([]byte, 1) - _, err := Read(p) - return err -} diff --git a/vendor/gvisor.dev/gvisor/pkg/rand/rand_linux_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/rand/rand_linux_state_autogen.go deleted file mode 100644 index f727c93147..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/rand/rand_linux_state_autogen.go +++ /dev/null @@ -1,3 +0,0 @@ -// automatically generated by stateify. - -package rand diff --git a/vendor/gvisor.dev/gvisor/pkg/rand/rand_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/rand/rand_state_autogen.go deleted file mode 100644 index 4320837d66..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/rand/rand_state_autogen.go +++ /dev/null @@ -1,6 +0,0 @@ -// automatically generated by stateify. - -//go:build !linux -// +build !linux - -package rand diff --git a/vendor/gvisor.dev/gvisor/pkg/rand/rng.go b/vendor/gvisor.dev/gvisor/pkg/rand/rng.go deleted file mode 100644 index ac2d0f8da2..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/rand/rng.go +++ /dev/null @@ -1,131 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package rand implements a cryptographically secure pseudorandom number -// generator. -package rand - -import ( - "encoding/binary" - "fmt" - "io" -) - -// RNG exposes convenience functions based on a cryptographically secure -// io.Reader. -type RNG struct { - Reader io.Reader -} - -// RNGFrom returns a new RNG. r must be a cryptographically secure io.Reader. -func RNGFrom(r io.Reader) RNG { - return RNG{Reader: r} -} - -// Uint16 is analogous to the standard library's math/rand.Uint16. -func (rg *RNG) Uint16() uint16 { - var data [2]byte - if _, err := rg.Reader.Read(data[:]); err != nil { - panic(fmt.Sprintf("Read() failed: %v", err)) - } - return binary.NativeEndian.Uint16(data[:]) -} - -// Uint32 is analogous to the standard library's math/rand.Uint32. -func (rg *RNG) Uint32() uint32 { - var data [4]byte - if _, err := rg.Reader.Read(data[:]); err != nil { - panic(fmt.Sprintf("Read() failed: %v", err)) - } - return binary.NativeEndian.Uint32(data[:]) -} - -// Int63n is analogous to the standard library's math/rand.Int63n. -func (rg *RNG) Int63n(n int64) int64 { - // Based on Go's rand package implementation, but using - // cryptographically secure random numbers. - if n <= 0 { - panic(fmt.Sprintf("n must be positive, but got %d", n)) - } - - // This can be done quickly when n is a power of 2. - if n&(n-1) == 0 { - return int64(rg.Uint64()) & (n - 1) - } - - // The naive approach would be to return rg.Int63()%n, but we need the - // random number to be fair. It shouldn't be biased towards certain - // results, but simple modular math can be very biased. For example, if - // n is 40% of the maximum int64, then the output values of rg.Int63 - // map to return values as follows: - // - // - The first 40% of values map to themselves. - // - The second 40% map to themselves - maximum int64. - // - The remaining 20% map to the themselves - 2 * (maximum int64), - // i.e. the first half of possible output values. - // - // And thus 60% of results map the first half of possible output - // values, and 40% map the second half. Oops! - // - // We use the same trick as Go to deal with this: shave off the last - // segment (the 20% in our example) to make the RNG more fair. - // - // In the worst case, n is just over half of maximum int64, meaning - // that the upper half of rg.Int63 return values are bad. So each call - // to rg.Int63 has, at worst, a 50% chance of needing a retry. - maximum := int64((1 << 63) - 1 - (1<<63)%uint64(n)) - ret := rg.Int63() - for ret > maximum { - ret = rg.Int63() - } - return ret % n -} - -// Int63 is analogous to the standard library's math/rand.Int63. -func (rg *RNG) Int63() int64 { - return ((1 << 63) - 1) & int64(rg.Uint64()) -} - -// Uint64 is analogous to the standard library's math/rand.Uint64. -func (rg *RNG) Uint64() uint64 { - var data [8]byte - if _, err := rg.Reader.Read(data[:]); err != nil { - panic(fmt.Sprintf("Read() failed: %v", err)) - } - return binary.NativeEndian.Uint64(data[:]) -} - -// Uint32 is analogous to the standard library's math/rand.Uint32. -func Uint32() uint32 { - rng := RNG{Reader: Reader} - return rng.Uint32() -} - -// Int63n is analogous to the standard library's math/rand.Int63n. -func Int63n(n int64) int64 { - rng := RNG{Reader: Reader} - return rng.Int63n(n) -} - -// Int63 is analogous to the standard library's math/rand.Int63. -func Int63() int64 { - rng := RNG{Reader: Reader} - return rng.Int63() -} - -// Uint64 is analogous to the standard library's math/rand.Uint64. -func Uint64() uint64 { - rng := RNG{Reader: Reader} - return rng.Uint64() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/refs/refcounter.go b/vendor/gvisor.dev/gvisor/pkg/refs/refcounter.go deleted file mode 100644 index ec60ee1a05..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/refs/refcounter.go +++ /dev/null @@ -1,196 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package refs defines an interface for reference counted objects. -package refs - -import ( - "bytes" - "fmt" - "runtime" - - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/context" - "gvisor.dev/gvisor/pkg/sync" -) - -// RefCounter is the interface to be implemented by objects that are reference -// counted. -type RefCounter interface { - // IncRef increments the reference counter on the object. - IncRef() - - // DecRef decrements the object's reference count. Users of refs_template.Refs - // may specify a destructor to be called once the reference count reaches zero. - DecRef(ctx context.Context) -} - -// TryRefCounter is like RefCounter but allow the ref increment to be tried. -type TryRefCounter interface { - RefCounter - - // TryIncRef attempts to increment the reference count, but may fail if all - // references have already been dropped, in which case it returns false. If - // true is returned, then a valid reference is now held on the object. - TryIncRef() bool -} - -// LeakMode configures the leak checker. -type LeakMode uint32 - -const ( - // NoLeakChecking indicates that no effort should be made to check for - // leaks. - NoLeakChecking LeakMode = iota - - // LeaksLogWarning indicates that a warning should be logged when leaks - // are found. - LeaksLogWarning - - // LeaksPanic indidcates that a panic should be issued when leaks are found. - LeaksPanic -) - -// Set implements flag.Value. -func (l *LeakMode) Set(v string) error { - switch v { - case "disabled": - *l = NoLeakChecking - case "log-names": - *l = LeaksLogWarning - case "panic": - *l = LeaksPanic - default: - return fmt.Errorf("invalid ref leak mode %q", v) - } - return nil -} - -// Get implements flag.Value. -func (l *LeakMode) Get() any { - return *l -} - -// String implements flag.Value. -func (l LeakMode) String() string { - switch l { - case NoLeakChecking: - return "disabled" - case LeaksLogWarning: - return "log-names" - case LeaksPanic: - return "panic" - default: - panic(fmt.Sprintf("invalid ref leak mode %d", l)) - } -} - -// leakMode stores the current mode for the reference leak checker. -// -// Values must be one of the LeakMode values. -// -// leakMode must be accessed atomically. -var leakMode atomicbitops.Uint32 - -// SetLeakMode configures the reference leak checker. -func SetLeakMode(mode LeakMode) { - leakMode.Store(uint32(mode)) -} - -// GetLeakMode returns the current leak mode. -func GetLeakMode() LeakMode { - return LeakMode(leakMode.Load()) -} - -const maxStackFrames = 40 - -type fileLine struct { - file string - line int -} - -// A stackKey is a representation of a stack frame for use as a map key. -// -// The fileLine type is used as PC values seem to vary across collections, even -// for the same call stack. -type stackKey [maxStackFrames]fileLine - -var stackCache = struct { - sync.Mutex - entries map[stackKey][]uintptr -}{entries: map[stackKey][]uintptr{}} - -func makeStackKey(pcs []uintptr) stackKey { - frames := runtime.CallersFrames(pcs) - var key stackKey - keySlice := key[:0] - for { - frame, more := frames.Next() - keySlice = append(keySlice, fileLine{frame.File, frame.Line}) - - if !more || len(keySlice) == len(key) { - break - } - } - return key -} - -// RecordStack constructs and returns the PCs on the current stack. -func RecordStack() []uintptr { - pcs := make([]uintptr, maxStackFrames) - n := runtime.Callers(1, pcs) - if n == 0 { - // No pcs available. Stop now. - // - // This can happen if the first argument to runtime.Callers - // is large. - return nil - } - pcs = pcs[:n] - key := makeStackKey(pcs) - stackCache.Lock() - v, ok := stackCache.entries[key] - if !ok { - // Reallocate to prevent pcs from escaping. - v = append([]uintptr(nil), pcs...) - stackCache.entries[key] = v - } - stackCache.Unlock() - return v -} - -// FormatStack converts the given stack into a readable format. -func FormatStack(pcs []uintptr) string { - frames := runtime.CallersFrames(pcs) - var trace bytes.Buffer - for { - frame, more := frames.Next() - fmt.Fprintf(&trace, "%s:%d: %s\n", frame.File, frame.Line, frame.Function) - - if !more { - break - } - } - return trace.String() -} - -// OnExit is called on sandbox exit. It runs GC to enqueue refcount finalizers, -// which check for reference leaks. There is no way to guarantee that every -// finalizer will run before exiting, but this at least ensures that they will -// be discovered/enqueued by GC. -func OnExit() { - if LeakMode(leakMode.Load()) != NoLeakChecking { - runtime.GC() - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/refs/refs_map.go b/vendor/gvisor.dev/gvisor/pkg/refs/refs_map.go deleted file mode 100644 index f94fea87cc..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/refs/refs_map.go +++ /dev/null @@ -1,179 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package refs - -import ( - "fmt" - - "gvisor.dev/gvisor/pkg/log" - "gvisor.dev/gvisor/pkg/sync" -) - -var ( - // liveObjects is a global map of reference-counted objects. Objects are - // inserted when leak check is enabled, and they are removed when they are - // destroyed. It is protected by liveObjectsMu. - liveObjects map[CheckedObject]struct{} - liveObjectsMu sync.Mutex -) - -// CheckedObject represents a reference-counted object with an informative -// leak detection message. -type CheckedObject interface { - // RefType is the type of the reference-counted object. - RefType() string - - // LeakMessage supplies a warning to be printed upon leak detection. - LeakMessage() string - - // LogRefs indicates whether reference-related events should be logged. - LogRefs() bool -} - -func init() { - liveObjects = make(map[CheckedObject]struct{}) -} - -// LeakCheckEnabled returns whether leak checking is enabled. The following -// functions should only be called if it returns true. -func LeakCheckEnabled() bool { - mode := GetLeakMode() - return mode != NoLeakChecking -} - -// leakCheckPanicEnabled returns whether DoLeakCheck() should panic when leaks -// are detected. -func leakCheckPanicEnabled() bool { - return GetLeakMode() == LeaksPanic -} - -// Register adds obj to the live object map. -func Register(obj CheckedObject) { - if LeakCheckEnabled() { - liveObjectsMu.Lock() - if _, ok := liveObjects[obj]; ok { - panic(fmt.Sprintf("Unexpected entry in leak checking map: reference %p already added", obj)) - } - liveObjects[obj] = struct{}{} - liveObjectsMu.Unlock() - if LeakCheckEnabled() && obj.LogRefs() { - logEvent(obj, "registered") - } - } -} - -// Unregister removes obj from the live object map. -func Unregister(obj CheckedObject) { - if LeakCheckEnabled() { - liveObjectsMu.Lock() - defer liveObjectsMu.Unlock() - if _, ok := liveObjects[obj]; !ok { - panic(fmt.Sprintf("Expected to find entry in leak checking map for reference %p", obj)) - } - delete(liveObjects, obj) - if LeakCheckEnabled() && obj.LogRefs() { - logEvent(obj, "unregistered") - } - } -} - -// LogIncRef logs a reference increment. -func LogIncRef(obj CheckedObject, refs int64) { - if LeakCheckEnabled() && obj.LogRefs() { - logEvent(obj, fmt.Sprintf("IncRef to %d", refs)) - } -} - -// LogTryIncRef logs a successful TryIncRef call. -func LogTryIncRef(obj CheckedObject, refs int64) { - if LeakCheckEnabled() && obj.LogRefs() { - logEvent(obj, fmt.Sprintf("TryIncRef to %d", refs)) - } -} - -// LogDecRef logs a reference decrement. -func LogDecRef(obj CheckedObject, refs int64) { - if LeakCheckEnabled() && obj.LogRefs() { - logEvent(obj, fmt.Sprintf("DecRef to %d", refs)) - } -} - -// logEvent logs a message for the given reference-counted object. -// -// obj.LogRefs() should be checked before calling logEvent, in order to avoid -// calling any text processing needed to evaluate msg. -func logEvent(obj CheckedObject, msg string) { - log.Infof("[%s %p] %s:\n%s", obj.RefType(), obj, msg, FormatStack(RecordStack())) -} - -// checkOnce makes sure that leak checking is only done once. DoLeakCheck is -// called from multiple places (which may overlap) to cover different sandbox -// exit scenarios. -var checkOnce sync.Once - -// DoLeakCheck iterates through the live object map and logs a message for each -// object. It should be called when no reference-counted objects are reachable -// anymore, at which point anything left in the map is considered a leak. On -// multiple calls, only the first call will perform the leak check. -func DoLeakCheck() { - if LeakCheckEnabled() { - checkOnce.Do(doLeakCheck) - } -} - -// DoRepeatedLeakCheck is the same as DoLeakCheck except that it can be called -// multiple times by the caller to incrementally perform leak checking. -func DoRepeatedLeakCheck() { - if LeakCheckEnabled() { - doLeakCheck() - } -} - -type leakCheckDisabled interface { - LeakCheckDisabled() bool -} - -// CleanupSync is used to wait for async cleanup actions. -var CleanupSync sync.WaitGroup - -func doLeakCheck() { - CleanupSync.Wait() - liveObjectsMu.Lock() - defer liveObjectsMu.Unlock() - leaked := len(liveObjects) - if leaked > 0 { - n := 0 - msg := fmt.Sprintf("Leak checking detected %d leaked objects:\n", leaked) - for obj := range liveObjects { - skip := false - if o, ok := obj.(leakCheckDisabled); ok { - skip = o.LeakCheckDisabled() - } - if skip { - log.Debugf(obj.LeakMessage()) - continue - } - msg += obj.LeakMessage() + "\n" - n++ - } - if n == 0 { - return - } - if leakCheckPanicEnabled() { - panic(msg) - } - log.Warningf(msg) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/refs/refs_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/refs/refs_state_autogen.go deleted file mode 100644 index dfa2c1bb32..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/refs/refs_state_autogen.go +++ /dev/null @@ -1,3 +0,0 @@ -// automatically generated by stateify. - -package refs diff --git a/vendor/gvisor.dev/gvisor/pkg/sleep/sleep_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/sleep/sleep_unsafe.go deleted file mode 100644 index 9dcd78c09a..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sleep/sleep_unsafe.go +++ /dev/null @@ -1,478 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package sleep allows goroutines to efficiently sleep on multiple sources of -// notifications (wakers). It offers O(1) complexity, which is different from -// multi-channel selects which have O(n) complexity (where n is the number of -// channels) and a considerable constant factor. -// -// It is similar to edge-triggered epoll waits, where the user registers each -// object of interest once, and then can repeatedly wait on all of them. -// -// A Waker object is used to wake a sleeping goroutine (G) up, or prevent it -// from going to sleep next. A Sleeper object is used to receive notifications -// from wakers, and if no notifications are available, to optionally sleep until -// one becomes available. -// -// A Waker can be associated with at most one Sleeper, but a Sleeper can be -// associated with multiple Wakers. A Sleeper has a list of asserted (ready) -// wakers; when Fetch() is called repeatedly, elements from this list are -// returned until the list becomes empty in which case the goroutine goes to -// sleep. When Assert() is called on a Waker, it adds itself to the Sleeper's -// asserted list and wakes the G up from its sleep if needed. -// -// Sleeper objects are expected to be used as follows, with just one goroutine -// executing this code: -// -// // One time set-up. -// s := sleep.Sleeper{} -// s.AddWaker(&w1) -// s.AddWaker(&w2) -// -// // Called repeatedly. -// for { -// switch s.Fetch(true) { -// case &w1: -// // Do work triggered by w1 being asserted. -// case &w2: -// // Do work triggered by w2 being asserted. -// } -// } -// -// And Waker objects are expected to call w.Assert() when they want the sleeper -// to wake up and perform work. -// -// The notifications are edge-triggered, which means that if a Waker calls -// Assert() several times before the sleeper has the chance to wake up, it will -// only be notified once and should perform all pending work (alternatively, it -// can also call Assert() on the waker, to ensure that it will wake up again). -// -// The "unsafeness" here is in the casts to/from unsafe.Pointer, which is safe -// when only one type is used for each unsafe.Pointer (which is the case here), -// we should just make sure that this remains the case in the future. The usage -// of unsafe package could be confined to sharedWaker and sharedSleeper types -// that would hold pointers in atomic.Pointers, but the go compiler currently -// can't optimize these as well (it won't inline their method calls), which -// reduces performance. -package sleep - -import ( - "context" - "sync/atomic" - "unsafe" - - "gvisor.dev/gvisor/pkg/sync" -) - -const ( - // preparingG is stored in sleepers to indicate that they're preparing - // to sleep. - preparingG = 1 -) - -var ( - // assertedSleeper is a sentinel sleeper. A pointer to it is stored in - // wakers that are asserted. - assertedSleeper Sleeper -) - -// Sleeper allows a goroutine to sleep and receive wake up notifications from -// Wakers in an efficient way. -// -// This is similar to edge-triggered epoll in that wakers are added to the -// sleeper once and the sleeper can then repeatedly sleep in O(1) time while -// waiting on all wakers. -// -// None of the methods in a Sleeper can be called concurrently. Wakers that have -// been added to a sleeper A can only be added to another sleeper after A.Done() -// returns. These restrictions allow this to be implemented lock-free. -// -// This struct is thread-compatible. -// -// +stateify savable -type Sleeper struct { - _ sync.NoCopy - - // sharedList is a "stack" of asserted wakers. They atomically add - // themselves to the front of this list as they become asserted. - sharedList unsafe.Pointer `state:".(*Waker)"` - - // localList is a list of asserted wakers that is only accessible to the - // waiter, and thus doesn't have to be accessed atomically. When - // fetching more wakers, the waiter will first go through this list, and - // only when it's empty will it atomically fetch wakers from - // sharedList. - localList *Waker - - // allWakers is a list with all wakers that have been added to this - // sleeper. It is used during cleanup to remove associations. - allWakers *Waker - - // waitingG holds the G that is sleeping, if any. It is used by wakers - // to determine which G, if any, they should wake. - waitingG uintptr `state:"zero"` -} - -// saveSharedList is invoked by stateify. -func (s *Sleeper) saveSharedList() *Waker { - return (*Waker)(atomic.LoadPointer(&s.sharedList)) -} - -// loadSharedList is invoked by stateify. -func (s *Sleeper) loadSharedList(_ context.Context, w *Waker) { - atomic.StorePointer(&s.sharedList, unsafe.Pointer(w)) -} - -// AddWaker associates the given waker to the sleeper. -func (s *Sleeper) AddWaker(w *Waker) { - if w.allWakersNext != nil { - panic("waker has non-nil allWakersNext; owned by another sleeper?") - } - if w.next != nil { - panic("waker has non-nil next; queued in another sleeper?") - } - - // Add the waker to the list of all wakers. - w.allWakersNext = s.allWakers - s.allWakers = w - - // Try to associate the waker with the sleeper. If it's already - // asserted, we simply enqueue it in the "ready" list. - for { - p := (*Sleeper)(atomic.LoadPointer(&w.s)) - if p == &assertedSleeper { - s.enqueueAssertedWaker(w, true /* wakep */) - return - } - - if atomic.CompareAndSwapPointer(&w.s, usleeper(p), usleeper(s)) { - return - } - } -} - -// nextWaker returns the next waker in the notification list, blocking if -// needed. The parameter wakepOrSleep indicates that if the operation does not -// block, then we will need to explicitly wake a runtime P. -// -// Precondition: wakepOrSleep may be true iff block is true. -// -//go:nosplit -func (s *Sleeper) nextWaker(block, wakepOrSleep bool) *Waker { - // Attempt to replenish the local list if it's currently empty. - if s.localList == nil { - for atomic.LoadPointer(&s.sharedList) == nil { - // Fail request if caller requested that we - // don't block. - if !block { - return nil - } - - // Indicate to wakers that we're about to sleep, - // this allows them to abort the wait by setting - // waitingG back to zero (which we'll notice - // before committing the sleep). - atomic.StoreUintptr(&s.waitingG, preparingG) - - // Check if something was queued while we were - // preparing to sleep. We need this interleaving - // to avoid missing wake ups. - if atomic.LoadPointer(&s.sharedList) != nil { - atomic.StoreUintptr(&s.waitingG, 0) - break - } - - // Since we are sleeping for sure, we no longer - // need to wakep once we get a value. - wakepOrSleep = false - - // Try to commit the sleep and report it to the - // tracer as a select. - // - // gopark puts the caller to sleep and calls - // commitSleep to decide whether to immediately - // wake the caller up or to leave it sleeping. - const traceEvGoBlockSelect = 24 - // See:runtime2.go in the go runtime package for - // the values to pass as the waitReason here. - const waitReasonSelect = 9 - sync.Gopark(commitSleep, unsafe.Pointer(&s.waitingG), sync.WaitReasonSelect, sync.TraceBlockSelect, 0) - } - - // Pull the shared list out and reverse it in the local - // list. Given that wakers push themselves in reverse - // order, we fix things here. - v := (*Waker)(atomic.SwapPointer(&s.sharedList, nil)) - for v != nil { - cur := v - v = v.next - - cur.next = s.localList - s.localList = cur - } - } - - // Remove the waker in the front of the list. - w := s.localList - s.localList = w.next - - // Do we need to wake a P? - if wakepOrSleep { - sync.Wakep() - } - - return w -} - -// commitSleep signals to wakers that the given g is now sleeping. Wakers can -// then fetch it and wake it. -// -// The commit may fail if wakers have been asserted after our last check, in -// which case they will have set s.waitingG to zero. -// -//go:norace -//go:nosplit -func commitSleep(g uintptr, waitingG unsafe.Pointer) bool { - return sync.RaceUncheckedAtomicCompareAndSwapUintptr((*uintptr)(waitingG), preparingG, g) -} - -// fetch is the backing implementation for Fetch and AssertAndFetch. -// -// Preconditions are the same as nextWaker. -// -//go:nosplit -func (s *Sleeper) fetch(block, wakepOrSleep bool) *Waker { - for { - w := s.nextWaker(block, wakepOrSleep) - if w == nil { - return nil - } - - // Reassociate the waker with the sleeper. If the waker was - // still asserted we can return it, otherwise try the next one. - old := (*Sleeper)(atomic.SwapPointer(&w.s, usleeper(s))) - if old == &assertedSleeper { - return w - } - } -} - -// Fetch fetches the next wake-up notification. If a notification is -// immediately available, the asserted waker is returned immediately. -// Otherwise, the behavior depends on the value of 'block': if true, the -// current goroutine blocks until a notification arrives and returns the -// asserted waker; if false, nil will be returned. -// -// N.B. This method is *not* thread-safe. Only one goroutine at a time is -// allowed to call this method. -func (s *Sleeper) Fetch(block bool) *Waker { - return s.fetch(block, false /* wakepOrSleep */) -} - -// AssertAndFetch asserts the given waker and fetches the next wake-up notification. -// Note that this will always be blocking, since there is no value in joining a -// non-blocking operation. -// -// N.B. Like Fetch, this method is *not* thread-safe. This will also yield the current -// P to the next goroutine, avoiding associated scheduled overhead. -// -// +checkescape:all -// -//go:nosplit -func (s *Sleeper) AssertAndFetch(n *Waker) *Waker { - n.assert(false /* wakep */) - return s.fetch(true /* block */, true /* wakepOrSleep*/) -} - -// Done is used to indicate that the caller won't use this Sleeper anymore. It -// removes the association with all wakers so that they can be safely reused -// by another sleeper after Done() returns. -func (s *Sleeper) Done() { - // Remove all associations that we can, and build a list of the ones we - // could not. An association can be removed right away from waker w if - // w.s has a pointer to the sleeper, that is, the waker is not asserted - // yet. By atomically switching w.s to nil, we guarantee that - // subsequent calls to Assert() on the waker will not result in it - // being queued. - for w := s.allWakers; w != nil; w = s.allWakers { - next := w.allWakersNext // Before zapping. - if atomic.CompareAndSwapPointer(&w.s, usleeper(s), nil) { - w.allWakersNext = nil - w.next = nil - s.allWakers = next // Move ahead. - continue - } - - // Dequeue exactly one waiter from the list, it may not be - // this one but we know this one is in the process. We must - // leave it in the asserted state but drop it from our lists. - if w := s.nextWaker(true, false); w != nil { - prev := &s.allWakers - for *prev != w { - prev = &((*prev).allWakersNext) - } - *prev = (*prev).allWakersNext - w.allWakersNext = nil - w.next = nil - } - } -} - -// enqueueAssertedWaker enqueues an asserted waker to the "ready" circular list -// of wakers that want to notify the sleeper. -// -//go:nosplit -func (s *Sleeper) enqueueAssertedWaker(w *Waker, wakep bool) { - // Add the new waker to the front of the list. - for { - v := (*Waker)(atomic.LoadPointer(&s.sharedList)) - w.next = v - if atomic.CompareAndSwapPointer(&s.sharedList, uwaker(v), uwaker(w)) { - break - } - } - - // Nothing to do if there isn't a G waiting. - if atomic.LoadUintptr(&s.waitingG) == 0 { - return - } - - // Signal to the sleeper that a waker has been asserted. - switch g := atomic.SwapUintptr(&s.waitingG, 0); g { - case 0, preparingG: - default: - // We managed to get a G. Wake it up. - sync.Goready(g, 0, wakep) - } -} - -// Waker represents a source of wake-up notifications to be sent to sleepers. A -// waker can be associated with at most one sleeper at a time, and at any given -// time is either in asserted or non-asserted state. -// -// Once asserted, the waker remains so until it is manually cleared or a sleeper -// consumes its assertion (i.e., a sleeper wakes up or is prevented from going -// to sleep due to the waker). -// -// This struct is thread-safe, that is, its methods can be called concurrently -// by multiple goroutines. -// -// Note, it is not safe to copy a Waker as its fields are modified by value -// (the pointer fields are individually modified with atomic operations). -// -// +stateify savable -type Waker struct { - _ sync.NoCopy - - // s is the sleeper that this waker can wake up. Only one sleeper at a - // time is allowed. This field can have three classes of values: - // nil -- the waker is not asserted: it either is not associated with - // a sleeper, or is queued to a sleeper due to being previously - // asserted. This is the zero value. - // &assertedSleeper -- the waker is asserted. - // otherwise -- the waker is not asserted, and is associated with the - // given sleeper. Once it transitions to asserted state, the - // associated sleeper will be woken. - s unsafe.Pointer `state:".(wakerState)"` - - // next is used to form a linked list of asserted wakers in a sleeper. - next *Waker - - // allWakersNext is used to form a linked list of all wakers associated - // to a given sleeper. - allWakersNext *Waker -} - -// +stateify savable -type wakerState struct { - asserted bool - other *Sleeper -} - -// saveS is invoked by stateify. -func (w *Waker) saveS() wakerState { - s := (*Sleeper)(atomic.LoadPointer(&w.s)) - if s == &assertedSleeper { - return wakerState{asserted: true} - } - return wakerState{other: s} -} - -// loadS is invoked by stateify. -func (w *Waker) loadS(_ context.Context, ws wakerState) { - if ws.asserted { - atomic.StorePointer(&w.s, unsafe.Pointer(&assertedSleeper)) - } else { - atomic.StorePointer(&w.s, unsafe.Pointer(ws.other)) - } -} - -// assert is the implementation for Assert. -// -//go:nosplit -func (w *Waker) assert(wakep bool) { - // Nothing to do if the waker is already asserted. This check allows us - // to complete this case (already asserted) without any interlocked - // operations on x86. - if atomic.LoadPointer(&w.s) == usleeper(&assertedSleeper) { - return - } - - // Mark the waker as asserted, and wake up a sleeper if there is one. - switch s := (*Sleeper)(atomic.SwapPointer(&w.s, usleeper(&assertedSleeper))); s { - case nil: - case &assertedSleeper: - default: - s.enqueueAssertedWaker(w, wakep) - } -} - -// Assert moves the waker to an asserted state, if it isn't asserted yet. When -// asserted, the waker will cause its matching sleeper to wake up. -func (w *Waker) Assert() { - w.assert(true /* wakep */) -} - -// Clear moves the waker to then non-asserted state and returns whether it was -// asserted before being cleared. -// -// N.B. The waker isn't removed from the "ready" list of a sleeper (if it -// happens to be in one), but the sleeper will notice that it is not asserted -// anymore and won't return it to the caller. -func (w *Waker) Clear() bool { - // Nothing to do if the waker is not asserted. This check allows us to - // complete this case (already not asserted) without any interlocked - // operations on x86. - if atomic.LoadPointer(&w.s) != usleeper(&assertedSleeper) { - return false - } - - // Try to store nil in the sleeper, which indicates that the waker is - // not asserted. - return atomic.CompareAndSwapPointer(&w.s, usleeper(&assertedSleeper), nil) -} - -// IsAsserted returns whether the waker is currently asserted (i.e., if it's -// currently in a state that would cause its matching sleeper to wake up). -func (w *Waker) IsAsserted() bool { - return (*Sleeper)(atomic.LoadPointer(&w.s)) == &assertedSleeper -} - -func usleeper(s *Sleeper) unsafe.Pointer { - return unsafe.Pointer(s) -} - -func uwaker(w *Waker) unsafe.Pointer { - return unsafe.Pointer(w) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/sleep/sleep_unsafe_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/sleep/sleep_unsafe_state_autogen.go deleted file mode 100644 index c6d7cf5096..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sleep/sleep_unsafe_state_autogen.go +++ /dev/null @@ -1,109 +0,0 @@ -// automatically generated by stateify. - -package sleep - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (s *Sleeper) StateTypeName() string { - return "pkg/sleep.Sleeper" -} - -func (s *Sleeper) StateFields() []string { - return []string{ - "sharedList", - "localList", - "allWakers", - } -} - -func (s *Sleeper) beforeSave() {} - -// +checklocksignore -func (s *Sleeper) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - var sharedListValue *Waker - sharedListValue = s.saveSharedList() - stateSinkObject.SaveValue(0, sharedListValue) - stateSinkObject.Save(1, &s.localList) - stateSinkObject.Save(2, &s.allWakers) -} - -func (s *Sleeper) afterLoad(context.Context) {} - -// +checklocksignore -func (s *Sleeper) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(1, &s.localList) - stateSourceObject.Load(2, &s.allWakers) - stateSourceObject.LoadValue(0, new(*Waker), func(y any) { s.loadSharedList(ctx, y.(*Waker)) }) -} - -func (w *Waker) StateTypeName() string { - return "pkg/sleep.Waker" -} - -func (w *Waker) StateFields() []string { - return []string{ - "s", - "next", - "allWakersNext", - } -} - -func (w *Waker) beforeSave() {} - -// +checklocksignore -func (w *Waker) StateSave(stateSinkObject state.Sink) { - w.beforeSave() - var sValue wakerState - sValue = w.saveS() - stateSinkObject.SaveValue(0, sValue) - stateSinkObject.Save(1, &w.next) - stateSinkObject.Save(2, &w.allWakersNext) -} - -func (w *Waker) afterLoad(context.Context) {} - -// +checklocksignore -func (w *Waker) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(1, &w.next) - stateSourceObject.Load(2, &w.allWakersNext) - stateSourceObject.LoadValue(0, new(wakerState), func(y any) { w.loadS(ctx, y.(wakerState)) }) -} - -func (w *wakerState) StateTypeName() string { - return "pkg/sleep.wakerState" -} - -func (w *wakerState) StateFields() []string { - return []string{ - "asserted", - "other", - } -} - -func (w *wakerState) beforeSave() {} - -// +checklocksignore -func (w *wakerState) StateSave(stateSinkObject state.Sink) { - w.beforeSave() - stateSinkObject.Save(0, &w.asserted) - stateSinkObject.Save(1, &w.other) -} - -func (w *wakerState) afterLoad(context.Context) {} - -// +checklocksignore -func (w *wakerState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &w.asserted) - stateSourceObject.Load(1, &w.other) -} - -func init() { - state.Register((*Sleeper)(nil)) - state.Register((*Waker)(nil)) - state.Register((*wakerState)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/state/addr_range.go b/vendor/gvisor.dev/gvisor/pkg/state/addr_range.go deleted file mode 100644 index 0b7346e47e..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/state/addr_range.go +++ /dev/null @@ -1,76 +0,0 @@ -package state - -// A Range represents a contiguous range of T. -// -// +stateify savable -type addrRange struct { - // Start is the inclusive start of the range. - Start uintptr - - // End is the exclusive end of the range. - End uintptr -} - -// WellFormed returns true if r.Start <= r.End. All other methods on a Range -// require that the Range is well-formed. -// -//go:nosplit -func (r addrRange) WellFormed() bool { - return r.Start <= r.End -} - -// Length returns the length of the range. -// -//go:nosplit -func (r addrRange) Length() uintptr { - return r.End - r.Start -} - -// Contains returns true if r contains x. -// -//go:nosplit -func (r addrRange) Contains(x uintptr) bool { - return r.Start <= x && x < r.End -} - -// Overlaps returns true if r and r2 overlap. -// -//go:nosplit -func (r addrRange) Overlaps(r2 addrRange) bool { - return r.Start < r2.End && r2.Start < r.End -} - -// IsSupersetOf returns true if r is a superset of r2; that is, the range r2 is -// contained within r. -// -//go:nosplit -func (r addrRange) IsSupersetOf(r2 addrRange) bool { - return r.Start <= r2.Start && r.End >= r2.End -} - -// Intersect returns a range consisting of the intersection between r and r2. -// If r and r2 do not overlap, Intersect returns a range with unspecified -// bounds, but for which Length() == 0. -// -//go:nosplit -func (r addrRange) Intersect(r2 addrRange) addrRange { - if r.Start < r2.Start { - r.Start = r2.Start - } - if r.End > r2.End { - r.End = r2.End - } - if r.End < r.Start { - r.End = r.Start - } - return r -} - -// CanSplitAt returns true if it is legal to split a segment spanning the range -// r at x; that is, splitting at x would produce two ranges, both of which have -// non-zero length. -// -//go:nosplit -func (r addrRange) CanSplitAt(x uintptr) bool { - return r.Contains(x) && r.Start < x -} diff --git a/vendor/gvisor.dev/gvisor/pkg/state/addr_set.go b/vendor/gvisor.dev/gvisor/pkg/state/addr_set.go deleted file mode 100644 index 49b8bd5e01..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/state/addr_set.go +++ /dev/null @@ -1,1994 +0,0 @@ -package state - -import ( - "bytes" - "context" - "fmt" -) - -// trackGaps is an optional parameter. -// -// If trackGaps is 1, the Set will track maximum gap size recursively, -// enabling the GapIterator.{Prev,Next}LargeEnoughGap functions. In this -// case, Key must be an unsigned integer. -// -// trackGaps must be 0 or 1. -const addrtrackGaps = 0 - -var _ = uint8(addrtrackGaps << 7) // Will fail if not zero or one. - -// dynamicGap is a type that disappears if trackGaps is 0. -type addrdynamicGap [addrtrackGaps]uintptr - -// Get returns the value of the gap. -// -// Precondition: trackGaps must be non-zero. -func (d *addrdynamicGap) Get() uintptr { - return d[:][0] -} - -// Set sets the value of the gap. -// -// Precondition: trackGaps must be non-zero. -func (d *addrdynamicGap) Set(v uintptr) { - d[:][0] = v -} - -const ( - // minDegree is the minimum degree of an internal node in a Set B-tree. - // - // - Any non-root node has at least minDegree-1 segments. - // - // - Any non-root internal (non-leaf) node has at least minDegree children. - // - // - The root node may have fewer than minDegree-1 segments, but it may - // only have 0 segments if the tree is empty. - // - // Our implementation requires minDegree >= 3. Higher values of minDegree - // usually improve performance, but increase memory usage for small sets. - addrminDegree = 10 - - addrmaxDegree = 2 * addrminDegree -) - -// A Set is a mapping of segments with non-overlapping Range keys. The zero -// value for a Set is an empty set. Set values are not safely movable nor -// copyable. Set is thread-compatible. -// -// +stateify savable -type addrSet struct { - root addrnode `state:".([]addrFlatSegment)"` -} - -// IsEmpty returns true if the set contains no segments. -func (s *addrSet) IsEmpty() bool { - return s.root.nrSegments == 0 -} - -// IsEmptyRange returns true iff no segments in the set overlap the given -// range. This is semantically equivalent to s.SpanRange(r) == 0, but may be -// more efficient. -func (s *addrSet) IsEmptyRange(r addrRange) bool { - switch { - case r.Length() < 0: - panic(fmt.Sprintf("invalid range %v", r)) - case r.Length() == 0: - return true - } - _, gap := s.Find(r.Start) - if !gap.Ok() { - return false - } - return r.End <= gap.End() -} - -// Span returns the total size of all segments in the set. -func (s *addrSet) Span() uintptr { - var sz uintptr - for seg := s.FirstSegment(); seg.Ok(); seg = seg.NextSegment() { - sz += seg.Range().Length() - } - return sz -} - -// SpanRange returns the total size of the intersection of segments in the set -// with the given range. -func (s *addrSet) SpanRange(r addrRange) uintptr { - switch { - case r.Length() < 0: - panic(fmt.Sprintf("invalid range %v", r)) - case r.Length() == 0: - return 0 - } - var sz uintptr - for seg := s.LowerBoundSegment(r.Start); seg.Ok() && seg.Start() < r.End; seg = seg.NextSegment() { - sz += seg.Range().Intersect(r).Length() - } - return sz -} - -// FirstSegment returns the first segment in the set. If the set is empty, -// FirstSegment returns a terminal iterator. -func (s *addrSet) FirstSegment() addrIterator { - if s.root.nrSegments == 0 { - return addrIterator{} - } - return s.root.firstSegment() -} - -// LastSegment returns the last segment in the set. If the set is empty, -// LastSegment returns a terminal iterator. -func (s *addrSet) LastSegment() addrIterator { - if s.root.nrSegments == 0 { - return addrIterator{} - } - return s.root.lastSegment() -} - -// FirstGap returns the first gap in the set. -func (s *addrSet) FirstGap() addrGapIterator { - n := &s.root - for n.hasChildren { - n = n.children[0] - } - return addrGapIterator{n, 0} -} - -// LastGap returns the last gap in the set. -func (s *addrSet) LastGap() addrGapIterator { - n := &s.root - for n.hasChildren { - n = n.children[n.nrSegments] - } - return addrGapIterator{n, n.nrSegments} -} - -// Find returns the segment or gap whose range contains the given key. If a -// segment is found, the returned Iterator is non-terminal and the -// returned GapIterator is terminal. Otherwise, the returned Iterator is -// terminal and the returned GapIterator is non-terminal. -func (s *addrSet) Find(key uintptr) (addrIterator, addrGapIterator) { - n := &s.root - for { - - lower := 0 - upper := n.nrSegments - for lower < upper { - i := lower + (upper-lower)/2 - if r := n.keys[i]; key < r.End { - if key >= r.Start { - return addrIterator{n, i}, addrGapIterator{} - } - upper = i - } else { - lower = i + 1 - } - } - i := lower - if !n.hasChildren { - return addrIterator{}, addrGapIterator{n, i} - } - n = n.children[i] - } -} - -// FindSegment returns the segment whose range contains the given key. If no -// such segment exists, FindSegment returns a terminal iterator. -func (s *addrSet) FindSegment(key uintptr) addrIterator { - seg, _ := s.Find(key) - return seg -} - -// LowerBoundSegment returns the segment with the lowest range that contains a -// key greater than or equal to min. If no such segment exists, -// LowerBoundSegment returns a terminal iterator. -func (s *addrSet) LowerBoundSegment(min uintptr) addrIterator { - seg, gap := s.Find(min) - if seg.Ok() { - return seg - } - return gap.NextSegment() -} - -// UpperBoundSegment returns the segment with the highest range that contains a -// key less than or equal to max. If no such segment exists, UpperBoundSegment -// returns a terminal iterator. -func (s *addrSet) UpperBoundSegment(max uintptr) addrIterator { - seg, gap := s.Find(max) - if seg.Ok() { - return seg - } - return gap.PrevSegment() -} - -// FindGap returns the gap containing the given key. If no such gap exists -// (i.e. the set contains a segment containing that key), FindGap returns a -// terminal iterator. -func (s *addrSet) FindGap(key uintptr) addrGapIterator { - _, gap := s.Find(key) - return gap -} - -// LowerBoundGap returns the gap with the lowest range that is greater than or -// equal to min. -func (s *addrSet) LowerBoundGap(min uintptr) addrGapIterator { - seg, gap := s.Find(min) - if gap.Ok() { - return gap - } - return seg.NextGap() -} - -// UpperBoundGap returns the gap with the highest range that is less than or -// equal to max. -func (s *addrSet) UpperBoundGap(max uintptr) addrGapIterator { - seg, gap := s.Find(max) - if gap.Ok() { - return gap - } - return seg.PrevGap() -} - -// FirstLargeEnoughGap returns the first gap in the set with at least the given -// length. If no such gap exists, FirstLargeEnoughGap returns a terminal -// iterator. -// -// Precondition: trackGaps must be 1. -func (s *addrSet) FirstLargeEnoughGap(minSize uintptr) addrGapIterator { - if addrtrackGaps != 1 { - panic("set is not tracking gaps") - } - gap := s.FirstGap() - if gap.Range().Length() >= minSize { - return gap - } - return gap.NextLargeEnoughGap(minSize) -} - -// LastLargeEnoughGap returns the last gap in the set with at least the given -// length. If no such gap exists, LastLargeEnoughGap returns a terminal -// iterator. -// -// Precondition: trackGaps must be 1. -func (s *addrSet) LastLargeEnoughGap(minSize uintptr) addrGapIterator { - if addrtrackGaps != 1 { - panic("set is not tracking gaps") - } - gap := s.LastGap() - if gap.Range().Length() >= minSize { - return gap - } - return gap.PrevLargeEnoughGap(minSize) -} - -// LowerBoundLargeEnoughGap returns the first gap in the set with at least the -// given length and whose range contains a key greater than or equal to min. If -// no such gap exists, LowerBoundLargeEnoughGap returns a terminal iterator. -// -// Precondition: trackGaps must be 1. -func (s *addrSet) LowerBoundLargeEnoughGap(min, minSize uintptr) addrGapIterator { - if addrtrackGaps != 1 { - panic("set is not tracking gaps") - } - gap := s.LowerBoundGap(min) - if gap.Range().Length() >= minSize { - return gap - } - return gap.NextLargeEnoughGap(minSize) -} - -// UpperBoundLargeEnoughGap returns the last gap in the set with at least the -// given length and whose range contains a key less than or equal to max. If no -// such gap exists, UpperBoundLargeEnoughGap returns a terminal iterator. -// -// Precondition: trackGaps must be 1. -func (s *addrSet) UpperBoundLargeEnoughGap(max, minSize uintptr) addrGapIterator { - if addrtrackGaps != 1 { - panic("set is not tracking gaps") - } - gap := s.UpperBoundGap(max) - if gap.Range().Length() >= minSize { - return gap - } - return gap.PrevLargeEnoughGap(minSize) -} - -// Insert inserts the given segment into the given gap. If the new segment can -// be merged with adjacent segments, Insert will do so. Insert returns an -// iterator to the segment containing the inserted value (which may have been -// merged with other values). All existing iterators (including gap, but not -// including the returned iterator) are invalidated. -// -// If the gap cannot accommodate the segment, or if r is invalid, Insert panics. -// -// Insert is semantically equivalent to a InsertWithoutMerging followed by a -// Merge, but may be more efficient. Note that there is no unchecked variant of -// Insert since Insert must retrieve and inspect gap's predecessor and -// successor segments regardless. -func (s *addrSet) Insert(gap addrGapIterator, r addrRange, val *objectEncodeState) addrIterator { - if r.Length() <= 0 { - panic(fmt.Sprintf("invalid segment range %v", r)) - } - prev, next := gap.PrevSegment(), gap.NextSegment() - if prev.Ok() && prev.End() > r.Start { - panic(fmt.Sprintf("new segment %v overlaps predecessor %v", r, prev.Range())) - } - if next.Ok() && next.Start() < r.End { - panic(fmt.Sprintf("new segment %v overlaps successor %v", r, next.Range())) - } - if prev.Ok() && prev.End() == r.Start { - if mval, ok := (addrSetFunctions{}).Merge(prev.Range(), prev.Value(), r, val); ok { - shrinkMaxGap := addrtrackGaps != 0 && gap.Range().Length() == gap.node.maxGap.Get() - prev.SetEndUnchecked(r.End) - prev.SetValue(mval) - if shrinkMaxGap { - gap.node.updateMaxGapLeaf() - } - if next.Ok() && next.Start() == r.End { - val = mval - if mval, ok := (addrSetFunctions{}).Merge(prev.Range(), val, next.Range(), next.Value()); ok { - prev.SetEndUnchecked(next.End()) - prev.SetValue(mval) - return s.Remove(next).PrevSegment() - } - } - return prev - } - } - if next.Ok() && next.Start() == r.End { - if mval, ok := (addrSetFunctions{}).Merge(r, val, next.Range(), next.Value()); ok { - shrinkMaxGap := addrtrackGaps != 0 && gap.Range().Length() == gap.node.maxGap.Get() - next.SetStartUnchecked(r.Start) - next.SetValue(mval) - if shrinkMaxGap { - gap.node.updateMaxGapLeaf() - } - return next - } - } - - return s.InsertWithoutMergingUnchecked(gap, r, val) -} - -// InsertWithoutMerging inserts the given segment into the given gap and -// returns an iterator to the inserted segment. All existing iterators -// (including gap, but not including the returned iterator) are invalidated. -// -// If the gap cannot accommodate the segment, or if r is invalid, -// InsertWithoutMerging panics. -func (s *addrSet) InsertWithoutMerging(gap addrGapIterator, r addrRange, val *objectEncodeState) addrIterator { - if r.Length() <= 0 { - panic(fmt.Sprintf("invalid segment range %v", r)) - } - if gr := gap.Range(); !gr.IsSupersetOf(r) { - panic(fmt.Sprintf("cannot insert segment range %v into gap range %v", r, gr)) - } - return s.InsertWithoutMergingUnchecked(gap, r, val) -} - -// InsertWithoutMergingUnchecked inserts the given segment into the given gap -// and returns an iterator to the inserted segment. All existing iterators -// (including gap, but not including the returned iterator) are invalidated. -// -// Preconditions: -// - r.Start >= gap.Start(). -// - r.End <= gap.End(). -func (s *addrSet) InsertWithoutMergingUnchecked(gap addrGapIterator, r addrRange, val *objectEncodeState) addrIterator { - gap = gap.node.rebalanceBeforeInsert(gap) - splitMaxGap := addrtrackGaps != 0 && (gap.node.nrSegments == 0 || gap.Range().Length() == gap.node.maxGap.Get()) - copy(gap.node.keys[gap.index+1:], gap.node.keys[gap.index:gap.node.nrSegments]) - copy(gap.node.values[gap.index+1:], gap.node.values[gap.index:gap.node.nrSegments]) - gap.node.keys[gap.index] = r - gap.node.values[gap.index] = val - gap.node.nrSegments++ - if splitMaxGap { - gap.node.updateMaxGapLeaf() - } - return addrIterator{gap.node, gap.index} -} - -// InsertRange inserts the given segment into the set. If the new segment can -// be merged with adjacent segments, InsertRange will do so. InsertRange -// returns an iterator to the segment containing the inserted value (which may -// have been merged with other values). All existing iterators (excluding the -// returned iterator) are invalidated. -// -// If the new segment would overlap an existing segment, or if r is invalid, -// InsertRange panics. -// -// InsertRange searches the set to find the gap to insert into. If the caller -// already has the appropriate GapIterator, or if the caller needs to do -// additional work between finding the gap and insertion, use Insert instead. -func (s *addrSet) InsertRange(r addrRange, val *objectEncodeState) addrIterator { - if r.Length() <= 0 { - panic(fmt.Sprintf("invalid segment range %v", r)) - } - seg, gap := s.Find(r.Start) - if seg.Ok() { - panic(fmt.Sprintf("new segment %v overlaps existing segment %v", r, seg.Range())) - } - if gap.End() < r.End { - panic(fmt.Sprintf("new segment %v overlaps existing segment %v", r, gap.NextSegment().Range())) - } - return s.Insert(gap, r, val) -} - -// InsertWithoutMergingRange inserts the given segment into the set and returns -// an iterator to the inserted segment. All existing iterators (excluding the -// returned iterator) are invalidated. -// -// If the new segment would overlap an existing segment, or if r is invalid, -// InsertWithoutMergingRange panics. -// -// InsertWithoutMergingRange searches the set to find the gap to insert into. -// If the caller already has the appropriate GapIterator, or if the caller -// needs to do additional work between finding the gap and insertion, use -// InsertWithoutMerging instead. -func (s *addrSet) InsertWithoutMergingRange(r addrRange, val *objectEncodeState) addrIterator { - if r.Length() <= 0 { - panic(fmt.Sprintf("invalid segment range %v", r)) - } - seg, gap := s.Find(r.Start) - if seg.Ok() { - panic(fmt.Sprintf("new segment %v overlaps existing segment %v", r, seg.Range())) - } - if gap.End() < r.End { - panic(fmt.Sprintf("new segment %v overlaps existing segment %v", r, gap.NextSegment().Range())) - } - return s.InsertWithoutMerging(gap, r, val) -} - -// TryInsertRange attempts to insert the given segment into the set. If the new -// segment can be merged with adjacent segments, TryInsertRange will do so. -// TryInsertRange returns an iterator to the segment containing the inserted -// value (which may have been merged with other values). All existing iterators -// (excluding the returned iterator) are invalidated. -// -// If the new segment would overlap an existing segment, TryInsertRange does -// nothing and returns a terminal iterator. -// -// TryInsertRange searches the set to find the gap to insert into. If the -// caller already has the appropriate GapIterator, or if the caller needs to do -// additional work between finding the gap and insertion, use Insert instead. -func (s *addrSet) TryInsertRange(r addrRange, val *objectEncodeState) addrIterator { - if r.Length() <= 0 { - panic(fmt.Sprintf("invalid segment range %v", r)) - } - seg, gap := s.Find(r.Start) - if seg.Ok() { - return addrIterator{} - } - if gap.End() < r.End { - return addrIterator{} - } - return s.Insert(gap, r, val) -} - -// TryInsertWithoutMergingRange attempts to insert the given segment into the -// set. If successful, it returns an iterator to the inserted segment; all -// existing iterators (excluding the returned iterator) are invalidated. If the -// new segment would overlap an existing segment, TryInsertWithoutMergingRange -// does nothing and returns a terminal iterator. -// -// TryInsertWithoutMergingRange searches the set to find the gap to insert -// into. If the caller already has the appropriate GapIterator, or if the -// caller needs to do additional work between finding the gap and insertion, -// use InsertWithoutMerging instead. -func (s *addrSet) TryInsertWithoutMergingRange(r addrRange, val *objectEncodeState) addrIterator { - if r.Length() <= 0 { - panic(fmt.Sprintf("invalid segment range %v", r)) - } - seg, gap := s.Find(r.Start) - if seg.Ok() { - return addrIterator{} - } - if gap.End() < r.End { - return addrIterator{} - } - return s.InsertWithoutMerging(gap, r, val) -} - -// Remove removes the given segment and returns an iterator to the vacated gap. -// All existing iterators (including seg, but not including the returned -// iterator) are invalidated. -func (s *addrSet) Remove(seg addrIterator) addrGapIterator { - - if seg.node.hasChildren { - - victim := seg.PrevSegment() - - seg.SetRangeUnchecked(victim.Range()) - seg.SetValue(victim.Value()) - - nextAdjacentNode := seg.NextSegment().node - if addrtrackGaps != 0 { - nextAdjacentNode.updateMaxGapLeaf() - } - return s.Remove(victim).NextGap() - } - copy(seg.node.keys[seg.index:], seg.node.keys[seg.index+1:seg.node.nrSegments]) - copy(seg.node.values[seg.index:], seg.node.values[seg.index+1:seg.node.nrSegments]) - addrSetFunctions{}.ClearValue(&seg.node.values[seg.node.nrSegments-1]) - seg.node.nrSegments-- - if addrtrackGaps != 0 { - seg.node.updateMaxGapLeaf() - } - return seg.node.rebalanceAfterRemove(addrGapIterator{seg.node, seg.index}) -} - -// RemoveAll removes all segments from the set. All existing iterators are -// invalidated. -func (s *addrSet) RemoveAll() { - s.root = addrnode{} -} - -// RemoveRange removes all segments in the given range. An iterator to the -// newly formed gap is returned, and all existing iterators are invalidated. -// -// RemoveRange searches the set to find segments to remove. If the caller -// already has an iterator to either end of the range of segments to remove, or -// if the caller needs to do additional work before removing each segment, -// iterate segments and call Remove in a loop instead. -func (s *addrSet) RemoveRange(r addrRange) addrGapIterator { - seg, gap := s.Find(r.Start) - if seg.Ok() { - seg = s.Isolate(seg, r) - gap = s.Remove(seg) - } - for seg = gap.NextSegment(); seg.Ok() && seg.Start() < r.End; seg = gap.NextSegment() { - seg = s.SplitAfter(seg, r.End) - gap = s.Remove(seg) - } - return gap -} - -// RemoveFullRange is equivalent to RemoveRange, except that if any key in the -// given range does not correspond to a segment, RemoveFullRange panics. -func (s *addrSet) RemoveFullRange(r addrRange) addrGapIterator { - seg := s.FindSegment(r.Start) - if !seg.Ok() { - panic(fmt.Sprintf("missing segment at %v", r.Start)) - } - seg = s.SplitBefore(seg, r.Start) - for { - seg = s.SplitAfter(seg, r.End) - end := seg.End() - gap := s.Remove(seg) - if r.End <= end { - return gap - } - seg = gap.NextSegment() - if !seg.Ok() || seg.Start() != end { - panic(fmt.Sprintf("missing segment at %v", end)) - } - } -} - -// Merge attempts to merge two neighboring segments. If successful, Merge -// returns an iterator to the merged segment, and all existing iterators are -// invalidated. Otherwise, Merge returns a terminal iterator. -// -// If first is not the predecessor of second, Merge panics. -func (s *addrSet) Merge(first, second addrIterator) addrIterator { - if first.NextSegment() != second { - panic(fmt.Sprintf("attempt to merge non-neighboring segments %v, %v", first.Range(), second.Range())) - } - return s.MergeUnchecked(first, second) -} - -// MergeUnchecked attempts to merge two neighboring segments. If successful, -// MergeUnchecked returns an iterator to the merged segment, and all existing -// iterators are invalidated. Otherwise, MergeUnchecked returns a terminal -// iterator. -// -// Precondition: first is the predecessor of second: first.NextSegment() == -// second, first == second.PrevSegment(). -func (s *addrSet) MergeUnchecked(first, second addrIterator) addrIterator { - if first.End() == second.Start() { - if mval, ok := (addrSetFunctions{}).Merge(first.Range(), first.Value(), second.Range(), second.Value()); ok { - - first.SetEndUnchecked(second.End()) - first.SetValue(mval) - - return s.Remove(second).PrevSegment() - } - } - return addrIterator{} -} - -// MergePrev attempts to merge the given segment with its predecessor if -// possible, and returns an updated iterator to the extended segment. All -// existing iterators (including seg, but not including the returned iterator) -// are invalidated. -// -// MergePrev is usually used when mutating segments while iterating them in -// order of increasing keys, to attempt merging of each mutated segment with -// its previously-mutated predecessor. In such cases, merging a mutated segment -// with its unmutated successor would incorrectly cause the latter to be -// skipped. -func (s *addrSet) MergePrev(seg addrIterator) addrIterator { - if prev := seg.PrevSegment(); prev.Ok() { - if mseg := s.MergeUnchecked(prev, seg); mseg.Ok() { - seg = mseg - } - } - return seg -} - -// MergeNext attempts to merge the given segment with its successor if -// possible, and returns an updated iterator to the extended segment. All -// existing iterators (including seg, but not including the returned iterator) -// are invalidated. -// -// MergeNext is usually used when mutating segments while iterating them in -// order of decreasing keys, to attempt merging of each mutated segment with -// its previously-mutated successor. In such cases, merging a mutated segment -// with its unmutated predecessor would incorrectly cause the latter to be -// skipped. -func (s *addrSet) MergeNext(seg addrIterator) addrIterator { - if next := seg.NextSegment(); next.Ok() { - if mseg := s.MergeUnchecked(seg, next); mseg.Ok() { - seg = mseg - } - } - return seg -} - -// Unisolate attempts to merge the given segment with its predecessor and -// successor if possible, and returns an updated iterator to the extended -// segment. All existing iterators (including seg, but not including the -// returned iterator) are invalidated. -// -// Unisolate is usually used in conjunction with Isolate when mutating part of -// a single segment in a way that may affect its mergeability. For the reasons -// described by MergePrev and MergeNext, it is usually incorrect to use the -// return value of Unisolate in a loop variable. -func (s *addrSet) Unisolate(seg addrIterator) addrIterator { - if prev := seg.PrevSegment(); prev.Ok() { - if mseg := s.MergeUnchecked(prev, seg); mseg.Ok() { - seg = mseg - } - } - if next := seg.NextSegment(); next.Ok() { - if mseg := s.MergeUnchecked(seg, next); mseg.Ok() { - seg = mseg - } - } - return seg -} - -// MergeAll merges all mergeable adjacent segments in the set. All existing -// iterators are invalidated. -func (s *addrSet) MergeAll() { - seg := s.FirstSegment() - if !seg.Ok() { - return - } - next := seg.NextSegment() - for next.Ok() { - if mseg := s.MergeUnchecked(seg, next); mseg.Ok() { - seg, next = mseg, mseg.NextSegment() - } else { - seg, next = next, next.NextSegment() - } - } -} - -// MergeInsideRange attempts to merge all adjacent segments that contain a key -// in the specific range. All existing iterators are invalidated. -// -// MergeInsideRange only makes sense after mutating the set in a way that may -// change the mergeability of modified segments; callers should prefer to use -// MergePrev or MergeNext during the mutating loop instead (depending on the -// direction of iteration), in order to avoid a redundant search. -func (s *addrSet) MergeInsideRange(r addrRange) { - seg := s.LowerBoundSegment(r.Start) - if !seg.Ok() { - return - } - next := seg.NextSegment() - for next.Ok() && next.Start() < r.End { - if mseg := s.MergeUnchecked(seg, next); mseg.Ok() { - seg, next = mseg, mseg.NextSegment() - } else { - seg, next = next, next.NextSegment() - } - } -} - -// MergeOutsideRange attempts to merge the segment containing r.Start with its -// predecessor, and the segment containing r.End-1 with its successor. -// -// MergeOutsideRange only makes sense after mutating the set in a way that may -// change the mergeability of modified segments; callers should prefer to use -// MergePrev or MergeNext during the mutating loop instead (depending on the -// direction of iteration), in order to avoid two redundant searches. -func (s *addrSet) MergeOutsideRange(r addrRange) { - first := s.FindSegment(r.Start) - if first.Ok() { - if prev := first.PrevSegment(); prev.Ok() { - s.Merge(prev, first) - } - } - last := s.FindSegment(r.End - 1) - if last.Ok() { - if next := last.NextSegment(); next.Ok() { - s.Merge(last, next) - } - } -} - -// Split splits the given segment at the given key and returns iterators to the -// two resulting segments. All existing iterators (including seg, but not -// including the returned iterators) are invalidated. -// -// If the segment cannot be split at split (because split is at the start or -// end of the segment's range, so splitting would produce a segment with zero -// length, or because split falls outside the segment's range altogether), -// Split panics. -func (s *addrSet) Split(seg addrIterator, split uintptr) (addrIterator, addrIterator) { - if !seg.Range().CanSplitAt(split) { - panic(fmt.Sprintf("can't split %v at %v", seg.Range(), split)) - } - return s.SplitUnchecked(seg, split) -} - -// SplitUnchecked splits the given segment at the given key and returns -// iterators to the two resulting segments. All existing iterators (including -// seg, but not including the returned iterators) are invalidated. -// -// Preconditions: seg.Start() < key < seg.End(). -func (s *addrSet) SplitUnchecked(seg addrIterator, split uintptr) (addrIterator, addrIterator) { - val1, val2 := (addrSetFunctions{}).Split(seg.Range(), seg.Value(), split) - end2 := seg.End() - seg.SetEndUnchecked(split) - seg.SetValue(val1) - seg2 := s.InsertWithoutMergingUnchecked(seg.NextGap(), addrRange{split, end2}, val2) - - return seg2.PrevSegment(), seg2 -} - -// SplitBefore ensures that the given segment's start is at least start by -// splitting at start if necessary, and returns an updated iterator to the -// bounded segment. All existing iterators (including seg, but not including -// the returned iterator) are invalidated. -// -// SplitBefore is usually when mutating segments in a range. In such cases, -// when iterating segments in order of increasing keys, the first segment may -// extend beyond the start of the range to be mutated, and needs to be -// SplitBefore to ensure that only the part of the segment within the range is -// mutated. When iterating segments in order of decreasing keys, SplitBefore -// and SplitAfter; i.e. SplitBefore needs to be invoked on each segment, while -// SplitAfter only needs to be invoked on the first. -// -// Preconditions: start < seg.End(). -func (s *addrSet) SplitBefore(seg addrIterator, start uintptr) addrIterator { - if seg.Range().CanSplitAt(start) { - _, seg = s.SplitUnchecked(seg, start) - } - return seg -} - -// SplitAfter ensures that the given segment's end is at most end by splitting -// at end if necessary, and returns an updated iterator to the bounded segment. -// All existing iterators (including seg, but not including the returned -// iterator) are invalidated. -// -// SplitAfter is usually used when mutating segments in a range. In such cases, -// when iterating segments in order of increasing keys, each iterated segment -// may extend beyond the end of the range to be mutated, and needs to be -// SplitAfter to ensure that only the part of the segment within the range is -// mutated. When iterating segments in order of decreasing keys, SplitBefore -// and SplitAfter exchange roles; i.e. SplitBefore needs to be invoked on each -// segment, while SplitAfter only needs to be invoked on the first. -// -// Preconditions: seg.Start() < end. -func (s *addrSet) SplitAfter(seg addrIterator, end uintptr) addrIterator { - if seg.Range().CanSplitAt(end) { - seg, _ = s.SplitUnchecked(seg, end) - } - return seg -} - -// Isolate ensures that the given segment's range is a subset of r by splitting -// at r.Start and r.End if necessary, and returns an updated iterator to the -// bounded segment. All existing iterators (including seg, but not including -// the returned iterators) are invalidated. -// -// Isolate is usually used when mutating part of a single segment, or when -// mutating segments in a range where the first segment is not necessarily -// split, making use of SplitBefore/SplitAfter complex. -// -// Preconditions: seg.Range().Overlaps(r). -func (s *addrSet) Isolate(seg addrIterator, r addrRange) addrIterator { - if seg.Range().CanSplitAt(r.Start) { - _, seg = s.SplitUnchecked(seg, r.Start) - } - if seg.Range().CanSplitAt(r.End) { - seg, _ = s.SplitUnchecked(seg, r.End) - } - return seg -} - -// LowerBoundSegmentSplitBefore combines LowerBoundSegment and SplitBefore. -// -// LowerBoundSegmentSplitBefore is usually used when mutating segments in a -// range while iterating them in order of increasing keys. In such cases, -// LowerBoundSegmentSplitBefore provides an iterator to the first segment to be -// mutated, suitable as the initial value for a loop variable. -func (s *addrSet) LowerBoundSegmentSplitBefore(min uintptr) addrIterator { - seg := s.LowerBoundSegment(min) - if seg.Ok() { - seg = s.SplitBefore(seg, min) - } - return seg -} - -// UpperBoundSegmentSplitAfter combines UpperBoundSegment and SplitAfter. -// -// UpperBoundSegmentSplitAfter is usually used when mutating segments in a -// range while iterating them in order of decreasing keys. In such cases, -// UpperBoundSegmentSplitAfter provides an iterator to the first segment to be -// mutated, suitable as the initial value for a loop variable. -func (s *addrSet) UpperBoundSegmentSplitAfter(max uintptr) addrIterator { - seg := s.UpperBoundSegment(max) - if seg.Ok() { - seg = s.SplitAfter(seg, max) - } - return seg -} - -// VisitRange applies the function f to all segments intersecting the range r, -// in order of ascending keys. Segments will not be split, so f may be called -// on segments lying partially outside r. Non-empty gaps between segments are -// skipped. If a call to f returns false, VisitRange stops iteration -// immediately. -// -// N.B. f must not invalidate iterators into s. -func (s *addrSet) VisitRange(r addrRange, f func(seg addrIterator) bool) { - for seg := s.LowerBoundSegment(r.Start); seg.Ok() && seg.Start() < r.End; seg = seg.NextSegment() { - if !f(seg) { - return - } - } -} - -// VisitFullRange is equivalent to VisitRange, except that if any key in r that -// is visited before f returns false does not correspond to a segment, -// VisitFullRange panics. -func (s *addrSet) VisitFullRange(r addrRange, f func(seg addrIterator) bool) { - pos := r.Start - seg := s.FindSegment(r.Start) - for { - if !seg.Ok() { - panic(fmt.Sprintf("missing segment at %v", pos)) - } - if !f(seg) { - return - } - pos = seg.End() - if r.End <= pos { - return - } - seg, _ = seg.NextNonEmpty() - } -} - -// MutateRange applies the function f to all segments intersecting the range r, -// in order of ascending keys. Segments that lie partially outside r are split -// before f is called, such that f only observes segments entirely within r. -// Iterated segments are merged again after f is called. Non-empty gaps between -// segments are skipped. If a call to f returns false, MutateRange stops -// iteration immediately. -// -// MutateRange invalidates all existing iterators. -// -// N.B. f must not invalidate iterators into s. -func (s *addrSet) MutateRange(r addrRange, f func(seg addrIterator) bool) { - seg := s.LowerBoundSegmentSplitBefore(r.Start) - for seg.Ok() && seg.Start() < r.End { - seg = s.SplitAfter(seg, r.End) - cont := f(seg) - seg = s.MergePrev(seg) - if !cont { - s.MergeNext(seg) - return - } - seg = seg.NextSegment() - } - if seg.Ok() { - s.MergePrev(seg) - } -} - -// MutateFullRange is equivalent to MutateRange, except that if any key in r -// that is visited before f returns false does not correspond to a segment, -// MutateFullRange panics. -func (s *addrSet) MutateFullRange(r addrRange, f func(seg addrIterator) bool) { - seg := s.FindSegment(r.Start) - if !seg.Ok() { - panic(fmt.Sprintf("missing segment at %v", r.Start)) - } - seg = s.SplitBefore(seg, r.Start) - for { - seg = s.SplitAfter(seg, r.End) - cont := f(seg) - end := seg.End() - seg = s.MergePrev(seg) - if !cont || r.End <= end { - s.MergeNext(seg) - return - } - seg = seg.NextSegment() - if !seg.Ok() || seg.Start() != end { - panic(fmt.Sprintf("missing segment at %v", end)) - } - } -} - -// +stateify savable -type addrnode struct { - // An internal binary tree node looks like: - // - // K - // / \ - // Cl Cr - // - // where all keys in the subtree rooted by Cl (the left subtree) are less - // than K (the key of the parent node), and all keys in the subtree rooted - // by Cr (the right subtree) are greater than K. - // - // An internal B-tree node's indexes work out to look like: - // - // K0 K1 K2 ... Kn-1 - // / \/ \/ \ ... / \ - // C0 C1 C2 C3 ... Cn-1 Cn - // - // where n is nrSegments. - nrSegments int - - // parent is a pointer to this node's parent. If this node is root, parent - // is nil. - parent *addrnode - - // parentIndex is the index of this node in parent.children. - parentIndex int - - // Flag for internal nodes that is technically redundant with "children[0] - // != nil", but is stored in the first cache line. "hasChildren" rather - // than "isLeaf" because false must be the correct value for an empty root. - hasChildren bool - - // The longest gap within this node. If the node is a leaf, it's simply the - // maximum gap among all the (nrSegments+1) gaps formed by its nrSegments keys - // including the 0th and nrSegments-th gap possibly shared with its upper-level - // nodes; if it's a non-leaf node, it's the max of all children's maxGap. - maxGap addrdynamicGap - - // Nodes store keys and values in separate arrays to maximize locality in - // the common case (scanning keys for lookup). - keys [addrmaxDegree - 1]addrRange - values [addrmaxDegree - 1]*objectEncodeState - children [addrmaxDegree]*addrnode -} - -// firstSegment returns the first segment in the subtree rooted by n. -// -// Preconditions: n.nrSegments != 0. -func (n *addrnode) firstSegment() addrIterator { - for n.hasChildren { - n = n.children[0] - } - return addrIterator{n, 0} -} - -// lastSegment returns the last segment in the subtree rooted by n. -// -// Preconditions: n.nrSegments != 0. -func (n *addrnode) lastSegment() addrIterator { - for n.hasChildren { - n = n.children[n.nrSegments] - } - return addrIterator{n, n.nrSegments - 1} -} - -func (n *addrnode) prevSibling() *addrnode { - if n.parent == nil || n.parentIndex == 0 { - return nil - } - return n.parent.children[n.parentIndex-1] -} - -func (n *addrnode) nextSibling() *addrnode { - if n.parent == nil || n.parentIndex == n.parent.nrSegments { - return nil - } - return n.parent.children[n.parentIndex+1] -} - -// rebalanceBeforeInsert splits n and its ancestors if they are full, as -// required for insertion, and returns an updated iterator to the position -// represented by gap. -func (n *addrnode) rebalanceBeforeInsert(gap addrGapIterator) addrGapIterator { - if n.nrSegments < addrmaxDegree-1 { - return gap - } - if n.parent != nil { - gap = n.parent.rebalanceBeforeInsert(gap) - } - if n.parent == nil { - - left := &addrnode{ - nrSegments: addrminDegree - 1, - parent: n, - parentIndex: 0, - hasChildren: n.hasChildren, - } - right := &addrnode{ - nrSegments: addrminDegree - 1, - parent: n, - parentIndex: 1, - hasChildren: n.hasChildren, - } - copy(left.keys[:addrminDegree-1], n.keys[:addrminDegree-1]) - copy(left.values[:addrminDegree-1], n.values[:addrminDegree-1]) - copy(right.keys[:addrminDegree-1], n.keys[addrminDegree:]) - copy(right.values[:addrminDegree-1], n.values[addrminDegree:]) - n.keys[0], n.values[0] = n.keys[addrminDegree-1], n.values[addrminDegree-1] - addrzeroValueSlice(n.values[1:]) - if n.hasChildren { - copy(left.children[:addrminDegree], n.children[:addrminDegree]) - copy(right.children[:addrminDegree], n.children[addrminDegree:]) - addrzeroNodeSlice(n.children[2:]) - for i := 0; i < addrminDegree; i++ { - left.children[i].parent = left - left.children[i].parentIndex = i - right.children[i].parent = right - right.children[i].parentIndex = i - } - } - n.nrSegments = 1 - n.hasChildren = true - n.children[0] = left - n.children[1] = right - - if addrtrackGaps != 0 { - left.updateMaxGapLocal() - right.updateMaxGapLocal() - } - if gap.node != n { - return gap - } - if gap.index < addrminDegree { - return addrGapIterator{left, gap.index} - } - return addrGapIterator{right, gap.index - addrminDegree} - } - - copy(n.parent.keys[n.parentIndex+1:], n.parent.keys[n.parentIndex:n.parent.nrSegments]) - copy(n.parent.values[n.parentIndex+1:], n.parent.values[n.parentIndex:n.parent.nrSegments]) - n.parent.keys[n.parentIndex], n.parent.values[n.parentIndex] = n.keys[addrminDegree-1], n.values[addrminDegree-1] - copy(n.parent.children[n.parentIndex+2:], n.parent.children[n.parentIndex+1:n.parent.nrSegments+1]) - for i := n.parentIndex + 2; i < n.parent.nrSegments+2; i++ { - n.parent.children[i].parentIndex = i - } - sibling := &addrnode{ - nrSegments: addrminDegree - 1, - parent: n.parent, - parentIndex: n.parentIndex + 1, - hasChildren: n.hasChildren, - } - n.parent.children[n.parentIndex+1] = sibling - n.parent.nrSegments++ - copy(sibling.keys[:addrminDegree-1], n.keys[addrminDegree:]) - copy(sibling.values[:addrminDegree-1], n.values[addrminDegree:]) - addrzeroValueSlice(n.values[addrminDegree-1:]) - if n.hasChildren { - copy(sibling.children[:addrminDegree], n.children[addrminDegree:]) - addrzeroNodeSlice(n.children[addrminDegree:]) - for i := 0; i < addrminDegree; i++ { - sibling.children[i].parent = sibling - sibling.children[i].parentIndex = i - } - } - n.nrSegments = addrminDegree - 1 - - if addrtrackGaps != 0 { - n.updateMaxGapLocal() - sibling.updateMaxGapLocal() - } - - if gap.node != n { - return gap - } - if gap.index < addrminDegree { - return gap - } - return addrGapIterator{sibling, gap.index - addrminDegree} -} - -// rebalanceAfterRemove "unsplits" n and its ancestors if they are deficient -// (contain fewer segments than required by B-tree invariants), as required for -// removal, and returns an updated iterator to the position represented by gap. -// -// Precondition: n is the only node in the tree that may currently violate a -// B-tree invariant. -func (n *addrnode) rebalanceAfterRemove(gap addrGapIterator) addrGapIterator { - for { - if n.nrSegments >= addrminDegree-1 { - return gap - } - if n.parent == nil { - - return gap - } - - if sibling := n.prevSibling(); sibling != nil && sibling.nrSegments >= addrminDegree { - copy(n.keys[1:], n.keys[:n.nrSegments]) - copy(n.values[1:], n.values[:n.nrSegments]) - n.keys[0] = n.parent.keys[n.parentIndex-1] - n.values[0] = n.parent.values[n.parentIndex-1] - n.parent.keys[n.parentIndex-1] = sibling.keys[sibling.nrSegments-1] - n.parent.values[n.parentIndex-1] = sibling.values[sibling.nrSegments-1] - addrSetFunctions{}.ClearValue(&sibling.values[sibling.nrSegments-1]) - if n.hasChildren { - copy(n.children[1:], n.children[:n.nrSegments+1]) - n.children[0] = sibling.children[sibling.nrSegments] - sibling.children[sibling.nrSegments] = nil - n.children[0].parent = n - n.children[0].parentIndex = 0 - for i := 1; i < n.nrSegments+2; i++ { - n.children[i].parentIndex = i - } - } - n.nrSegments++ - sibling.nrSegments-- - - if addrtrackGaps != 0 { - n.updateMaxGapLocal() - sibling.updateMaxGapLocal() - } - if gap.node == sibling && gap.index == sibling.nrSegments { - return addrGapIterator{n, 0} - } - if gap.node == n { - return addrGapIterator{n, gap.index + 1} - } - return gap - } - if sibling := n.nextSibling(); sibling != nil && sibling.nrSegments >= addrminDegree { - n.keys[n.nrSegments] = n.parent.keys[n.parentIndex] - n.values[n.nrSegments] = n.parent.values[n.parentIndex] - n.parent.keys[n.parentIndex] = sibling.keys[0] - n.parent.values[n.parentIndex] = sibling.values[0] - copy(sibling.keys[:sibling.nrSegments-1], sibling.keys[1:]) - copy(sibling.values[:sibling.nrSegments-1], sibling.values[1:]) - addrSetFunctions{}.ClearValue(&sibling.values[sibling.nrSegments-1]) - if n.hasChildren { - n.children[n.nrSegments+1] = sibling.children[0] - copy(sibling.children[:sibling.nrSegments], sibling.children[1:]) - sibling.children[sibling.nrSegments] = nil - n.children[n.nrSegments+1].parent = n - n.children[n.nrSegments+1].parentIndex = n.nrSegments + 1 - for i := 0; i < sibling.nrSegments; i++ { - sibling.children[i].parentIndex = i - } - } - n.nrSegments++ - sibling.nrSegments-- - - if addrtrackGaps != 0 { - n.updateMaxGapLocal() - sibling.updateMaxGapLocal() - } - if gap.node == sibling { - if gap.index == 0 { - return addrGapIterator{n, n.nrSegments} - } - return addrGapIterator{sibling, gap.index - 1} - } - return gap - } - - p := n.parent - if p.nrSegments == 1 { - - left, right := p.children[0], p.children[1] - p.nrSegments = left.nrSegments + right.nrSegments + 1 - p.hasChildren = left.hasChildren - p.keys[left.nrSegments] = p.keys[0] - p.values[left.nrSegments] = p.values[0] - copy(p.keys[:left.nrSegments], left.keys[:left.nrSegments]) - copy(p.values[:left.nrSegments], left.values[:left.nrSegments]) - copy(p.keys[left.nrSegments+1:], right.keys[:right.nrSegments]) - copy(p.values[left.nrSegments+1:], right.values[:right.nrSegments]) - if left.hasChildren { - copy(p.children[:left.nrSegments+1], left.children[:left.nrSegments+1]) - copy(p.children[left.nrSegments+1:], right.children[:right.nrSegments+1]) - for i := 0; i < p.nrSegments+1; i++ { - p.children[i].parent = p - p.children[i].parentIndex = i - } - } else { - p.children[0] = nil - p.children[1] = nil - } - - if gap.node == left { - return addrGapIterator{p, gap.index} - } - if gap.node == right { - return addrGapIterator{p, gap.index + left.nrSegments + 1} - } - return gap - } - // Merge n and either sibling, along with the segment separating the - // two, into whichever of the two nodes comes first. This is the - // reverse of the non-root splitting case in - // node.rebalanceBeforeInsert. - var left, right *addrnode - if n.parentIndex > 0 { - left = n.prevSibling() - right = n - } else { - left = n - right = n.nextSibling() - } - - if gap.node == right { - gap = addrGapIterator{left, gap.index + left.nrSegments + 1} - } - left.keys[left.nrSegments] = p.keys[left.parentIndex] - left.values[left.nrSegments] = p.values[left.parentIndex] - copy(left.keys[left.nrSegments+1:], right.keys[:right.nrSegments]) - copy(left.values[left.nrSegments+1:], right.values[:right.nrSegments]) - if left.hasChildren { - copy(left.children[left.nrSegments+1:], right.children[:right.nrSegments+1]) - for i := left.nrSegments + 1; i < left.nrSegments+right.nrSegments+2; i++ { - left.children[i].parent = left - left.children[i].parentIndex = i - } - } - left.nrSegments += right.nrSegments + 1 - copy(p.keys[left.parentIndex:], p.keys[left.parentIndex+1:p.nrSegments]) - copy(p.values[left.parentIndex:], p.values[left.parentIndex+1:p.nrSegments]) - addrSetFunctions{}.ClearValue(&p.values[p.nrSegments-1]) - copy(p.children[left.parentIndex+1:], p.children[left.parentIndex+2:p.nrSegments+1]) - for i := 0; i < p.nrSegments; i++ { - p.children[i].parentIndex = i - } - p.children[p.nrSegments] = nil - p.nrSegments-- - - if addrtrackGaps != 0 { - left.updateMaxGapLocal() - } - - n = p - } -} - -// updateMaxGapLeaf updates maxGap bottom-up from the calling leaf until no -// necessary update. -// -// Preconditions: n must be a leaf node, trackGaps must be 1. -func (n *addrnode) updateMaxGapLeaf() { - if n.hasChildren { - panic(fmt.Sprintf("updateMaxGapLeaf should always be called on leaf node: %v", n)) - } - max := n.calculateMaxGapLeaf() - if max == n.maxGap.Get() { - - return - } - oldMax := n.maxGap.Get() - n.maxGap.Set(max) - if max > oldMax { - - for p := n.parent; p != nil; p = p.parent { - if p.maxGap.Get() >= max { - - break - } - - p.maxGap.Set(max) - } - return - } - - for p := n.parent; p != nil; p = p.parent { - if p.maxGap.Get() > oldMax { - - break - } - - parentNewMax := p.calculateMaxGapInternal() - if p.maxGap.Get() == parentNewMax { - - break - } - - p.maxGap.Set(parentNewMax) - } -} - -// updateMaxGapLocal updates maxGap of the calling node solely with no -// propagation to ancestor nodes. -// -// Precondition: trackGaps must be 1. -func (n *addrnode) updateMaxGapLocal() { - if !n.hasChildren { - - n.maxGap.Set(n.calculateMaxGapLeaf()) - } else { - - n.maxGap.Set(n.calculateMaxGapInternal()) - } -} - -// calculateMaxGapLeaf iterates the gaps within a leaf node and calculate the -// max. -// -// Preconditions: n must be a leaf node. -func (n *addrnode) calculateMaxGapLeaf() uintptr { - max := addrGapIterator{n, 0}.Range().Length() - for i := 1; i <= n.nrSegments; i++ { - if current := (addrGapIterator{n, i}).Range().Length(); current > max { - max = current - } - } - return max -} - -// calculateMaxGapInternal iterates children's maxGap within an internal node n -// and calculate the max. -// -// Preconditions: n must be a non-leaf node. -func (n *addrnode) calculateMaxGapInternal() uintptr { - max := n.children[0].maxGap.Get() - for i := 1; i <= n.nrSegments; i++ { - if current := n.children[i].maxGap.Get(); current > max { - max = current - } - } - return max -} - -// searchFirstLargeEnoughGap returns the first gap having at least minSize length -// in the subtree rooted by n. If not found, return a terminal gap iterator. -func (n *addrnode) searchFirstLargeEnoughGap(minSize uintptr) addrGapIterator { - if n.maxGap.Get() < minSize { - return addrGapIterator{} - } - if n.hasChildren { - for i := 0; i <= n.nrSegments; i++ { - if largeEnoughGap := n.children[i].searchFirstLargeEnoughGap(minSize); largeEnoughGap.Ok() { - return largeEnoughGap - } - } - } else { - for i := 0; i <= n.nrSegments; i++ { - currentGap := addrGapIterator{n, i} - if currentGap.Range().Length() >= minSize { - return currentGap - } - } - } - panic(fmt.Sprintf("invalid maxGap in %v", n)) -} - -// searchLastLargeEnoughGap returns the last gap having at least minSize length -// in the subtree rooted by n. If not found, return a terminal gap iterator. -func (n *addrnode) searchLastLargeEnoughGap(minSize uintptr) addrGapIterator { - if n.maxGap.Get() < minSize { - return addrGapIterator{} - } - if n.hasChildren { - for i := n.nrSegments; i >= 0; i-- { - if largeEnoughGap := n.children[i].searchLastLargeEnoughGap(minSize); largeEnoughGap.Ok() { - return largeEnoughGap - } - } - } else { - for i := n.nrSegments; i >= 0; i-- { - currentGap := addrGapIterator{n, i} - if currentGap.Range().Length() >= minSize { - return currentGap - } - } - } - panic(fmt.Sprintf("invalid maxGap in %v", n)) -} - -// A Iterator is conceptually one of: -// -// - A pointer to a segment in a set; or -// -// - A terminal iterator, which is a sentinel indicating that the end of -// iteration has been reached. -// -// Iterators are copyable values and are meaningfully equality-comparable. The -// zero value of Iterator is a terminal iterator. -// -// Unless otherwise specified, any mutation of a set invalidates all existing -// iterators into the set. -type addrIterator struct { - // node is the node containing the iterated segment. If the iterator is - // terminal, node is nil. - node *addrnode - - // index is the index of the segment in node.keys/values. - index int -} - -// Ok returns true if the iterator is not terminal. All other methods are only -// valid for non-terminal iterators. -func (seg addrIterator) Ok() bool { - return seg.node != nil -} - -// Range returns the iterated segment's range key. -func (seg addrIterator) Range() addrRange { - return seg.node.keys[seg.index] -} - -// Start is equivalent to Range().Start, but should be preferred if only the -// start of the range is needed. -func (seg addrIterator) Start() uintptr { - return seg.node.keys[seg.index].Start -} - -// End is equivalent to Range().End, but should be preferred if only the end of -// the range is needed. -func (seg addrIterator) End() uintptr { - return seg.node.keys[seg.index].End -} - -// SetRangeUnchecked mutates the iterated segment's range key. This operation -// does not invalidate any iterators. -// -// Preconditions: -// - r.Length() > 0. -// - The new range must not overlap an existing one: -// - If seg.NextSegment().Ok(), then r.end <= seg.NextSegment().Start(). -// - If seg.PrevSegment().Ok(), then r.start >= seg.PrevSegment().End(). -func (seg addrIterator) SetRangeUnchecked(r addrRange) { - seg.node.keys[seg.index] = r -} - -// SetRange mutates the iterated segment's range key. If the new range would -// cause the iterated segment to overlap another segment, or if the new range -// is invalid, SetRange panics. This operation does not invalidate any -// iterators. -func (seg addrIterator) SetRange(r addrRange) { - if r.Length() <= 0 { - panic(fmt.Sprintf("invalid segment range %v", r)) - } - if prev := seg.PrevSegment(); prev.Ok() && r.Start < prev.End() { - panic(fmt.Sprintf("new segment range %v overlaps segment range %v", r, prev.Range())) - } - if next := seg.NextSegment(); next.Ok() && r.End > next.Start() { - panic(fmt.Sprintf("new segment range %v overlaps segment range %v", r, next.Range())) - } - seg.SetRangeUnchecked(r) -} - -// SetStartUnchecked mutates the iterated segment's start. This operation does -// not invalidate any iterators. -// -// Preconditions: The new start must be valid: -// - start < seg.End() -// - If seg.PrevSegment().Ok(), then start >= seg.PrevSegment().End(). -func (seg addrIterator) SetStartUnchecked(start uintptr) { - seg.node.keys[seg.index].Start = start -} - -// SetStart mutates the iterated segment's start. If the new start value would -// cause the iterated segment to overlap another segment, or would result in an -// invalid range, SetStart panics. This operation does not invalidate any -// iterators. -func (seg addrIterator) SetStart(start uintptr) { - if start >= seg.End() { - panic(fmt.Sprintf("new start %v would invalidate segment range %v", start, seg.Range())) - } - if prev := seg.PrevSegment(); prev.Ok() && start < prev.End() { - panic(fmt.Sprintf("new start %v would cause segment range %v to overlap segment range %v", start, seg.Range(), prev.Range())) - } - seg.SetStartUnchecked(start) -} - -// SetEndUnchecked mutates the iterated segment's end. This operation does not -// invalidate any iterators. -// -// Preconditions: The new end must be valid: -// - end > seg.Start(). -// - If seg.NextSegment().Ok(), then end <= seg.NextSegment().Start(). -func (seg addrIterator) SetEndUnchecked(end uintptr) { - seg.node.keys[seg.index].End = end -} - -// SetEnd mutates the iterated segment's end. If the new end value would cause -// the iterated segment to overlap another segment, or would result in an -// invalid range, SetEnd panics. This operation does not invalidate any -// iterators. -func (seg addrIterator) SetEnd(end uintptr) { - if end <= seg.Start() { - panic(fmt.Sprintf("new end %v would invalidate segment range %v", end, seg.Range())) - } - if next := seg.NextSegment(); next.Ok() && end > next.Start() { - panic(fmt.Sprintf("new end %v would cause segment range %v to overlap segment range %v", end, seg.Range(), next.Range())) - } - seg.SetEndUnchecked(end) -} - -// Value returns a copy of the iterated segment's value. -func (seg addrIterator) Value() *objectEncodeState { - return seg.node.values[seg.index] -} - -// ValuePtr returns a pointer to the iterated segment's value. The pointer is -// invalidated if the iterator is invalidated. This operation does not -// invalidate any iterators. -func (seg addrIterator) ValuePtr() **objectEncodeState { - return &seg.node.values[seg.index] -} - -// SetValue mutates the iterated segment's value. This operation does not -// invalidate any iterators. -func (seg addrIterator) SetValue(val *objectEncodeState) { - seg.node.values[seg.index] = val -} - -// PrevSegment returns the iterated segment's predecessor. If there is no -// preceding segment, PrevSegment returns a terminal iterator. -func (seg addrIterator) PrevSegment() addrIterator { - if seg.node.hasChildren { - return seg.node.children[seg.index].lastSegment() - } - if seg.index > 0 { - return addrIterator{seg.node, seg.index - 1} - } - if seg.node.parent == nil { - return addrIterator{} - } - return addrsegmentBeforePosition(seg.node.parent, seg.node.parentIndex) -} - -// NextSegment returns the iterated segment's successor. If there is no -// succeeding segment, NextSegment returns a terminal iterator. -func (seg addrIterator) NextSegment() addrIterator { - if seg.node.hasChildren { - return seg.node.children[seg.index+1].firstSegment() - } - if seg.index < seg.node.nrSegments-1 { - return addrIterator{seg.node, seg.index + 1} - } - if seg.node.parent == nil { - return addrIterator{} - } - return addrsegmentAfterPosition(seg.node.parent, seg.node.parentIndex) -} - -// PrevGap returns the gap immediately before the iterated segment. -func (seg addrIterator) PrevGap() addrGapIterator { - if seg.node.hasChildren { - - return seg.node.children[seg.index].lastSegment().NextGap() - } - return addrGapIterator{seg.node, seg.index} -} - -// NextGap returns the gap immediately after the iterated segment. -func (seg addrIterator) NextGap() addrGapIterator { - if seg.node.hasChildren { - return seg.node.children[seg.index+1].firstSegment().PrevGap() - } - return addrGapIterator{seg.node, seg.index + 1} -} - -// PrevNonEmpty returns the iterated segment's predecessor if it is adjacent, -// or the gap before the iterated segment otherwise. If seg.Start() == -// Functions.MinKey(), PrevNonEmpty will return two terminal iterators. -// Otherwise, exactly one of the iterators returned by PrevNonEmpty will be -// non-terminal. -func (seg addrIterator) PrevNonEmpty() (addrIterator, addrGapIterator) { - if prev := seg.PrevSegment(); prev.Ok() && prev.End() == seg.Start() { - return prev, addrGapIterator{} - } - return addrIterator{}, seg.PrevGap() -} - -// NextNonEmpty returns the iterated segment's successor if it is adjacent, or -// the gap after the iterated segment otherwise. If seg.End() == -// Functions.MaxKey(), NextNonEmpty will return two terminal iterators. -// Otherwise, exactly one of the iterators returned by NextNonEmpty will be -// non-terminal. -func (seg addrIterator) NextNonEmpty() (addrIterator, addrGapIterator) { - if next := seg.NextSegment(); next.Ok() && next.Start() == seg.End() { - return next, addrGapIterator{} - } - return addrIterator{}, seg.NextGap() -} - -// A GapIterator is conceptually one of: -// -// - A pointer to a position between two segments, before the first segment, or -// after the last segment in a set, called a *gap*; or -// -// - A terminal iterator, which is a sentinel indicating that the end of -// iteration has been reached. -// -// Note that the gap between two adjacent segments exists (iterators to it are -// non-terminal), but has a length of zero. GapIterator.IsEmpty returns true -// for such gaps. An empty set contains a single gap, spanning the entire range -// of the set's keys. -// -// GapIterators are copyable values and are meaningfully equality-comparable. -// The zero value of GapIterator is a terminal iterator. -// -// Unless otherwise specified, any mutation of a set invalidates all existing -// iterators into the set. -type addrGapIterator struct { - // The representation of a GapIterator is identical to that of an Iterator, - // except that index corresponds to positions between segments in the same - // way as for node.children (see comment for node.nrSegments). - node *addrnode - index int -} - -// Ok returns true if the iterator is not terminal. All other methods are only -// valid for non-terminal iterators. -func (gap addrGapIterator) Ok() bool { - return gap.node != nil -} - -// Range returns the range spanned by the iterated gap. -func (gap addrGapIterator) Range() addrRange { - return addrRange{gap.Start(), gap.End()} -} - -// Start is equivalent to Range().Start, but should be preferred if only the -// start of the range is needed. -func (gap addrGapIterator) Start() uintptr { - if ps := gap.PrevSegment(); ps.Ok() { - return ps.End() - } - return addrSetFunctions{}.MinKey() -} - -// End is equivalent to Range().End, but should be preferred if only the end of -// the range is needed. -func (gap addrGapIterator) End() uintptr { - if ns := gap.NextSegment(); ns.Ok() { - return ns.Start() - } - return addrSetFunctions{}.MaxKey() -} - -// IsEmpty returns true if the iterated gap is empty (that is, the "gap" is -// between two adjacent segments.) -func (gap addrGapIterator) IsEmpty() bool { - return gap.Range().Length() == 0 -} - -// PrevSegment returns the segment immediately before the iterated gap. If no -// such segment exists, PrevSegment returns a terminal iterator. -func (gap addrGapIterator) PrevSegment() addrIterator { - return addrsegmentBeforePosition(gap.node, gap.index) -} - -// NextSegment returns the segment immediately after the iterated gap. If no -// such segment exists, NextSegment returns a terminal iterator. -func (gap addrGapIterator) NextSegment() addrIterator { - return addrsegmentAfterPosition(gap.node, gap.index) -} - -// PrevGap returns the iterated gap's predecessor. If no such gap exists, -// PrevGap returns a terminal iterator. -func (gap addrGapIterator) PrevGap() addrGapIterator { - seg := gap.PrevSegment() - if !seg.Ok() { - return addrGapIterator{} - } - return seg.PrevGap() -} - -// NextGap returns the iterated gap's successor. If no such gap exists, NextGap -// returns a terminal iterator. -func (gap addrGapIterator) NextGap() addrGapIterator { - seg := gap.NextSegment() - if !seg.Ok() { - return addrGapIterator{} - } - return seg.NextGap() -} - -// NextLargeEnoughGap returns the iterated gap's first next gap with larger -// length than minSize. If not found, return a terminal gap iterator (does NOT -// include this gap itself). -// -// Precondition: trackGaps must be 1. -func (gap addrGapIterator) NextLargeEnoughGap(minSize uintptr) addrGapIterator { - if addrtrackGaps != 1 { - panic("set is not tracking gaps") - } - if gap.node != nil && gap.node.hasChildren && gap.index == gap.node.nrSegments { - - gap.node = gap.NextSegment().node - gap.index = 0 - return gap.nextLargeEnoughGapHelper(minSize) - } - return gap.nextLargeEnoughGapHelper(minSize) -} - -// nextLargeEnoughGapHelper is the helper function used by NextLargeEnoughGap -// to do the real recursions. -// -// Preconditions: gap is NOT the trailing gap of a non-leaf node. -func (gap addrGapIterator) nextLargeEnoughGapHelper(minSize uintptr) addrGapIterator { - for { - - for gap.node != nil && - (gap.node.maxGap.Get() < minSize || (!gap.node.hasChildren && gap.index == gap.node.nrSegments)) { - gap.node, gap.index = gap.node.parent, gap.node.parentIndex - } - - if gap.node == nil { - return addrGapIterator{} - } - - gap.index++ - for gap.index <= gap.node.nrSegments { - if gap.node.hasChildren { - if largeEnoughGap := gap.node.children[gap.index].searchFirstLargeEnoughGap(minSize); largeEnoughGap.Ok() { - return largeEnoughGap - } - } else { - if gap.Range().Length() >= minSize { - return gap - } - } - gap.index++ - } - gap.node, gap.index = gap.node.parent, gap.node.parentIndex - if gap.node != nil && gap.index == gap.node.nrSegments { - - gap.node, gap.index = gap.node.parent, gap.node.parentIndex - } - } -} - -// PrevLargeEnoughGap returns the iterated gap's first prev gap with larger or -// equal length than minSize. If not found, return a terminal gap iterator -// (does NOT include this gap itself). -// -// Precondition: trackGaps must be 1. -func (gap addrGapIterator) PrevLargeEnoughGap(minSize uintptr) addrGapIterator { - if addrtrackGaps != 1 { - panic("set is not tracking gaps") - } - if gap.node != nil && gap.node.hasChildren && gap.index == 0 { - - gap.node = gap.PrevSegment().node - gap.index = gap.node.nrSegments - return gap.prevLargeEnoughGapHelper(minSize) - } - return gap.prevLargeEnoughGapHelper(minSize) -} - -// prevLargeEnoughGapHelper is the helper function used by PrevLargeEnoughGap -// to do the real recursions. -// -// Preconditions: gap is NOT the first gap of a non-leaf node. -func (gap addrGapIterator) prevLargeEnoughGapHelper(minSize uintptr) addrGapIterator { - for { - - for gap.node != nil && - (gap.node.maxGap.Get() < minSize || (!gap.node.hasChildren && gap.index == 0)) { - gap.node, gap.index = gap.node.parent, gap.node.parentIndex - } - - if gap.node == nil { - return addrGapIterator{} - } - - gap.index-- - for gap.index >= 0 { - if gap.node.hasChildren { - if largeEnoughGap := gap.node.children[gap.index].searchLastLargeEnoughGap(minSize); largeEnoughGap.Ok() { - return largeEnoughGap - } - } else { - if gap.Range().Length() >= minSize { - return gap - } - } - gap.index-- - } - gap.node, gap.index = gap.node.parent, gap.node.parentIndex - if gap.node != nil && gap.index == 0 { - - gap.node, gap.index = gap.node.parent, gap.node.parentIndex - } - } -} - -// segmentBeforePosition returns the predecessor segment of the position given -// by n.children[i], which may or may not contain a child. If no such segment -// exists, segmentBeforePosition returns a terminal iterator. -func addrsegmentBeforePosition(n *addrnode, i int) addrIterator { - for i == 0 { - if n.parent == nil { - return addrIterator{} - } - n, i = n.parent, n.parentIndex - } - return addrIterator{n, i - 1} -} - -// segmentAfterPosition returns the successor segment of the position given by -// n.children[i], which may or may not contain a child. If no such segment -// exists, segmentAfterPosition returns a terminal iterator. -func addrsegmentAfterPosition(n *addrnode, i int) addrIterator { - for i == n.nrSegments { - if n.parent == nil { - return addrIterator{} - } - n, i = n.parent, n.parentIndex - } - return addrIterator{n, i} -} - -func addrzeroValueSlice(slice []*objectEncodeState) { - - for i := range slice { - addrSetFunctions{}.ClearValue(&slice[i]) - } -} - -func addrzeroNodeSlice(slice []*addrnode) { - for i := range slice { - slice[i] = nil - } -} - -// String stringifies a Set for debugging. -func (s *addrSet) String() string { - return s.root.String() -} - -// String stringifies a node (and all of its children) for debugging. -func (n *addrnode) String() string { - var buf bytes.Buffer - n.writeDebugString(&buf, "") - return buf.String() -} - -func (n *addrnode) writeDebugString(buf *bytes.Buffer, prefix string) { - if n.hasChildren != (n.nrSegments > 0 && n.children[0] != nil) { - buf.WriteString(prefix) - buf.WriteString(fmt.Sprintf("WARNING: inconsistent value of hasChildren: got %v, want %v\n", n.hasChildren, !n.hasChildren)) - } - for i := 0; i < n.nrSegments; i++ { - if child := n.children[i]; child != nil { - cprefix := fmt.Sprintf("%s- % 3d ", prefix, i) - if child.parent != n || child.parentIndex != i { - buf.WriteString(cprefix) - buf.WriteString(fmt.Sprintf("WARNING: inconsistent linkage to parent: got (%p, %d), want (%p, %d)\n", child.parent, child.parentIndex, n, i)) - } - child.writeDebugString(buf, fmt.Sprintf("%s- % 3d ", prefix, i)) - } - buf.WriteString(prefix) - if n.hasChildren { - if addrtrackGaps != 0 { - buf.WriteString(fmt.Sprintf("- % 3d: %v => %v, maxGap: %d\n", i, n.keys[i], n.values[i], n.maxGap.Get())) - } else { - buf.WriteString(fmt.Sprintf("- % 3d: %v => %v\n", i, n.keys[i], n.values[i])) - } - } else { - buf.WriteString(fmt.Sprintf("- % 3d: %v => %v\n", i, n.keys[i], n.values[i])) - } - } - if child := n.children[n.nrSegments]; child != nil { - child.writeDebugString(buf, fmt.Sprintf("%s- % 3d ", prefix, n.nrSegments)) - } -} - -// FlatSegment represents a segment as a single object. FlatSegment is used as -// an intermediate representation for save/restore and tests. -// -// +stateify savable -type addrFlatSegment struct { - Start uintptr - End uintptr - Value *objectEncodeState -} - -// ExportSlice returns a copy of all segments in the given set, in ascending -// key order. -func (s *addrSet) ExportSlice() []addrFlatSegment { - var fs []addrFlatSegment - for seg := s.FirstSegment(); seg.Ok(); seg = seg.NextSegment() { - fs = append(fs, addrFlatSegment{ - Start: seg.Start(), - End: seg.End(), - Value: seg.Value(), - }) - } - return fs -} - -// ImportSlice initializes the given set from the given slice. -// -// Preconditions: -// - s must be empty. -// - fs must represent a valid set (the segments in fs must have valid -// lengths that do not overlap). -// - The segments in fs must be sorted in ascending key order. -func (s *addrSet) ImportSlice(fs []addrFlatSegment) error { - if !s.IsEmpty() { - return fmt.Errorf("cannot import into non-empty set %v", s) - } - gap := s.FirstGap() - for i := range fs { - f := &fs[i] - r := addrRange{f.Start, f.End} - if !gap.Range().IsSupersetOf(r) { - return fmt.Errorf("segment overlaps a preceding segment or is incorrectly sorted: %v => %v", r, f.Value) - } - gap = s.InsertWithoutMerging(gap, r, f.Value).NextGap() - } - return nil -} - -// segmentTestCheck returns an error if s is incorrectly sorted, does not -// contain exactly expectedSegments segments, or contains a segment which -// fails the passed check. -// -// This should be used only for testing, and has been added to this package for -// templating convenience. -func (s *addrSet) segmentTestCheck(expectedSegments int, segFunc func(int, addrRange, *objectEncodeState) error) error { - havePrev := false - prev := uintptr(0) - nrSegments := 0 - for seg := s.FirstSegment(); seg.Ok(); seg = seg.NextSegment() { - next := seg.Start() - if havePrev && prev >= next { - return fmt.Errorf("incorrect order: key %d (segment %d) >= key %d (segment %d)", prev, nrSegments-1, next, nrSegments) - } - if segFunc != nil { - if err := segFunc(nrSegments, seg.Range(), seg.Value()); err != nil { - return err - } - } - prev = next - havePrev = true - nrSegments++ - } - if nrSegments != expectedSegments { - return fmt.Errorf("incorrect number of segments: got %d, wanted %d", nrSegments, expectedSegments) - } - return nil -} - -// countSegments counts the number of segments in the set. -// -// Similar to Check, this should only be used for testing. -func (s *addrSet) countSegments() (segments int) { - for seg := s.FirstSegment(); seg.Ok(); seg = seg.NextSegment() { - segments++ - } - return segments -} -func (s *addrSet) saveRoot() []addrFlatSegment { - fs := s.ExportSlice() - - fs = fs[:len(fs):len(fs)] - return fs -} - -func (s *addrSet) loadRoot(_ context.Context, fs []addrFlatSegment) { - if err := s.ImportSlice(fs); err != nil { - panic(err) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/state/complete_list.go b/vendor/gvisor.dev/gvisor/pkg/state/complete_list.go deleted file mode 100644 index dbb738d91d..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/state/complete_list.go +++ /dev/null @@ -1,239 +0,0 @@ -package state - -// ElementMapper provides an identity mapping by default. -// -// This can be replaced to provide a struct that maps elements to linker -// objects, if they are not the same. An ElementMapper is not typically -// required if: Linker is left as is, Element is left as is, or Linker and -// Element are the same type. -type completeElementMapper struct{} - -// linkerFor maps an Element to a Linker. -// -// This default implementation should be inlined. -// -//go:nosplit -func (completeElementMapper) linkerFor(elem *objectDecodeState) *objectDecodeState { return elem } - -// List is an intrusive list. Entries can be added to or removed from the list -// in O(1) time and with no additional memory allocations. -// -// The zero value for List is an empty list ready to use. -// -// To iterate over a list (where l is a List): -// -// for e := l.Front(); e != nil; e = e.Next() { -// // do something with e. -// } -// -// +stateify savable -type completeList struct { - head *objectDecodeState - tail *objectDecodeState -} - -// Reset resets list l to the empty state. -func (l *completeList) Reset() { - l.head = nil - l.tail = nil -} - -// Empty returns true iff the list is empty. -// -//go:nosplit -func (l *completeList) Empty() bool { - return l.head == nil -} - -// Front returns the first element of list l or nil. -// -//go:nosplit -func (l *completeList) Front() *objectDecodeState { - return l.head -} - -// Back returns the last element of list l or nil. -// -//go:nosplit -func (l *completeList) Back() *objectDecodeState { - return l.tail -} - -// Len returns the number of elements in the list. -// -// NOTE: This is an O(n) operation. -// -//go:nosplit -func (l *completeList) Len() (count int) { - for e := l.Front(); e != nil; e = (completeElementMapper{}.linkerFor(e)).Next() { - count++ - } - return count -} - -// PushFront inserts the element e at the front of list l. -// -//go:nosplit -func (l *completeList) PushFront(e *objectDecodeState) { - linker := completeElementMapper{}.linkerFor(e) - linker.SetNext(l.head) - linker.SetPrev(nil) - if l.head != nil { - completeElementMapper{}.linkerFor(l.head).SetPrev(e) - } else { - l.tail = e - } - - l.head = e -} - -// PushFrontList inserts list m at the start of list l, emptying m. -// -//go:nosplit -func (l *completeList) PushFrontList(m *completeList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - completeElementMapper{}.linkerFor(l.head).SetPrev(m.tail) - completeElementMapper{}.linkerFor(m.tail).SetNext(l.head) - - l.head = m.head - } - m.head = nil - m.tail = nil -} - -// PushBack inserts the element e at the back of list l. -// -//go:nosplit -func (l *completeList) PushBack(e *objectDecodeState) { - linker := completeElementMapper{}.linkerFor(e) - linker.SetNext(nil) - linker.SetPrev(l.tail) - if l.tail != nil { - completeElementMapper{}.linkerFor(l.tail).SetNext(e) - } else { - l.head = e - } - - l.tail = e -} - -// PushBackList inserts list m at the end of list l, emptying m. -// -//go:nosplit -func (l *completeList) PushBackList(m *completeList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - completeElementMapper{}.linkerFor(l.tail).SetNext(m.head) - completeElementMapper{}.linkerFor(m.head).SetPrev(l.tail) - - l.tail = m.tail - } - m.head = nil - m.tail = nil -} - -// InsertAfter inserts e after b. -// -//go:nosplit -func (l *completeList) InsertAfter(b, e *objectDecodeState) { - bLinker := completeElementMapper{}.linkerFor(b) - eLinker := completeElementMapper{}.linkerFor(e) - - a := bLinker.Next() - - eLinker.SetNext(a) - eLinker.SetPrev(b) - bLinker.SetNext(e) - - if a != nil { - completeElementMapper{}.linkerFor(a).SetPrev(e) - } else { - l.tail = e - } -} - -// InsertBefore inserts e before a. -// -//go:nosplit -func (l *completeList) InsertBefore(a, e *objectDecodeState) { - aLinker := completeElementMapper{}.linkerFor(a) - eLinker := completeElementMapper{}.linkerFor(e) - - b := aLinker.Prev() - eLinker.SetNext(a) - eLinker.SetPrev(b) - aLinker.SetPrev(e) - - if b != nil { - completeElementMapper{}.linkerFor(b).SetNext(e) - } else { - l.head = e - } -} - -// Remove removes e from l. -// -//go:nosplit -func (l *completeList) Remove(e *objectDecodeState) { - linker := completeElementMapper{}.linkerFor(e) - prev := linker.Prev() - next := linker.Next() - - if prev != nil { - completeElementMapper{}.linkerFor(prev).SetNext(next) - } else if l.head == e { - l.head = next - } - - if next != nil { - completeElementMapper{}.linkerFor(next).SetPrev(prev) - } else if l.tail == e { - l.tail = prev - } - - linker.SetNext(nil) - linker.SetPrev(nil) -} - -// Entry is a default implementation of Linker. Users can add anonymous fields -// of this type to their structs to make them automatically implement the -// methods needed by List. -// -// +stateify savable -type completeEntry struct { - next *objectDecodeState - prev *objectDecodeState -} - -// Next returns the entry that follows e in the list. -// -//go:nosplit -func (e *completeEntry) Next() *objectDecodeState { - return e.next -} - -// Prev returns the entry that precedes e in the list. -// -//go:nosplit -func (e *completeEntry) Prev() *objectDecodeState { - return e.prev -} - -// SetNext assigns 'entry' as the entry that follows e in the list. -// -//go:nosplit -func (e *completeEntry) SetNext(elem *objectDecodeState) { - e.next = elem -} - -// SetPrev assigns 'entry' as the entry that precedes e in the list. -// -//go:nosplit -func (e *completeEntry) SetPrev(elem *objectDecodeState) { - e.prev = elem -} diff --git a/vendor/gvisor.dev/gvisor/pkg/state/decode.go b/vendor/gvisor.dev/gvisor/pkg/state/decode.go deleted file mode 100644 index fd37876847..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/state/decode.go +++ /dev/null @@ -1,736 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package state - -import ( - "bytes" - "context" - "fmt" - "math" - "reflect" - - "gvisor.dev/gvisor/pkg/state/wire" -) - -// internalCallback is a interface called on object completion. -// -// There are two implementations: objectDecodeState & userCallback. -type internalCallback interface { - // source returns the dependent object. May be nil. - source() *objectDecodeState - - // callbackRun executes the callback. - callbackRun() -} - -// userCallback is an implementation of internalCallback. -type userCallback func() - -// source implements internalCallback.source. -func (userCallback) source() *objectDecodeState { - return nil -} - -// callbackRun implements internalCallback.callbackRun. -func (uc userCallback) callbackRun() { - uc() -} - -// objectDecodeState represents an object that may be in the process of being -// decoded. Specifically, it represents either a decoded object, or an an -// interest in a future object that will be decoded. When that interest is -// registered (via register), the storage for the object will be created, but -// it will not be decoded until the object is encountered in the stream. -type objectDecodeState struct { - // id is the id for this object. - id objectID - - // typ is the id for this typeID. This may be zero if this is not a - // type-registered structure. - typ typeID - - // obj is the object. This may or may not be valid yet, depending on - // whether complete returns true. However, regardless of whether the - // object is valid, obj contains a final storage location for the - // object. This is immutable. - // - // Note that this must be addressable (obj.Addr() must not panic). - // - // The obj passed to the decode methods below will equal this obj only - // in the case of decoding the top-level object. However, the passed - // obj may represent individual fields, elements of a slice, etc. that - // are effectively embedded within the reflect.Value below but with - // distinct types. - obj reflect.Value - - // blockedBy is the number of dependencies this object has. - blockedBy int - - // callbacksInline is inline storage for callbacks. - callbacksInline [2]internalCallback - - // callbacks is a set of callbacks to execute on load. - callbacks []internalCallback - - completeEntry -} - -// addCallback adds a callback to the objectDecodeState. -func (ods *objectDecodeState) addCallback(ic internalCallback) { - if ods.callbacks == nil { - ods.callbacks = ods.callbacksInline[:0] - } - ods.callbacks = append(ods.callbacks, ic) -} - -// findCycleFor returns when the given object is found in the blocking set. -func (ods *objectDecodeState) findCycleFor(target *objectDecodeState) []*objectDecodeState { - for _, ic := range ods.callbacks { - other := ic.source() - if other != nil && other == target { - return []*objectDecodeState{target} - } else if childList := other.findCycleFor(target); childList != nil { - return append(childList, other) - } - } - - // This should not occur. - Failf("no deadlock found?") - panic("unreachable") -} - -// findCycle finds a dependency cycle. -func (ods *objectDecodeState) findCycle() []*objectDecodeState { - return append(ods.findCycleFor(ods), ods) -} - -// source implements internalCallback.source. -func (ods *objectDecodeState) source() *objectDecodeState { - return ods -} - -// callbackRun implements internalCallback.callbackRun. -func (ods *objectDecodeState) callbackRun() { - ods.blockedBy-- -} - -// decodeState is a graph of objects in the process of being decoded. -// -// The decode process involves loading the breadth-first graph generated by -// encode. This graph is read in it's entirety, ensuring that all object -// storage is complete. -// -// As the graph is being serialized, a set of completion callbacks are -// executed. These completion callbacks should form a set of acyclic subgraphs -// over the original one. After decoding is complete, the objects are scanned -// to ensure that all callbacks are executed, otherwise the callback graph was -// not acyclic. -type decodeState struct { - // ctx is the decode context. - ctx context.Context - - // r is the input stream. - r wire.Reader - - // types is the type database. - types typeDecodeDatabase - - // objectByID is the set of objects in progress. - objectsByID []*objectDecodeState - - // deferred are objects that have been read, by no interest has been - // registered yet. These will be decoded once interest in registered. - deferred map[objectID]wire.Object - - // pending is the set of objects that are not yet complete. - pending completeList - - // stats tracks time data. - stats Stats -} - -// lookup looks up an object in decodeState or returns nil if no such object -// has been previously registered. -func (ds *decodeState) lookup(id objectID) *objectDecodeState { - if len(ds.objectsByID) < int(id) { - return nil - } - return ds.objectsByID[id-1] -} - -// checkComplete checks for completion. -func (ds *decodeState) checkComplete(ods *objectDecodeState) bool { - // Still blocked? - if ods.blockedBy > 0 { - return false - } - - // Track stats if relevant. - if ods.callbacks != nil && ods.typ != 0 { - ds.stats.start(ods.typ) - defer ds.stats.done() - } - - // Fire all callbacks. - for _, ic := range ods.callbacks { - ic.callbackRun() - } - - // Mark completed. - cbs := ods.callbacks - ods.callbacks = nil - ds.pending.Remove(ods) - - // Recursively check others. - for _, ic := range cbs { - if other := ic.source(); other != nil && other.blockedBy == 0 { - ds.checkComplete(other) - } - } - - return true // All set. -} - -// wait registers a dependency on an object. -// -// As a special case, we always allow _useable_ references back to the first -// decoding object because it may have fields that are already decoded. We also -// allow trivial self reference, since they can be handled internally. -func (ds *decodeState) wait(waiter *objectDecodeState, id objectID, callback func()) { - switch id { - case waiter.id: - // Trivial self reference. - fallthrough - case 1: - // Root object; see above. - if callback != nil { - callback() - } - return - } - - // Mark as blocked. - waiter.blockedBy++ - - // No nil can be returned here. - other := ds.lookup(id) - if callback != nil { - // Add the additional user callback. - other.addCallback(userCallback(callback)) - } - - // Mark waiter as unblocked. - other.addCallback(waiter) -} - -// waitObject notes a blocking relationship. -func (ds *decodeState) waitObject(ods *objectDecodeState, encoded wire.Object, callback func()) { - if rv, ok := encoded.(*wire.Ref); ok && rv.Root != 0 { - // Refs can encode pointers and maps. - ds.wait(ods, objectID(rv.Root), callback) - } else if sv, ok := encoded.(*wire.Slice); ok && sv.Ref.Root != 0 { - // See decodeObject; we need to wait for the array (if non-nil). - ds.wait(ods, objectID(sv.Ref.Root), callback) - } else if iv, ok := encoded.(*wire.Interface); ok { - // It's an interface (wait recursively). - ds.waitObject(ods, iv.Value, callback) - } else if callback != nil { - // Nothing to wait for: execute the callback immediately. - callback() - } -} - -// walkChild returns a child object from obj, given an accessor path. This is -// the decode-side equivalent to traverse in encode.go. -// -// For the purposes of this function, a child object is either a field within a -// struct or an array element, with one such indirection per element in -// path. The returned value may be an unexported field, so it may not be -// directly assignable. See decode_unsafe.go. -func walkChild(path []wire.Dot, obj reflect.Value) reflect.Value { - // See wire.Ref.Dots. The path here is specified in reverse order. - for i := len(path) - 1; i >= 0; i-- { - switch pc := path[i].(type) { - case *wire.FieldName: // Must be a pointer. - if obj.Kind() != reflect.Struct { - Failf("next component in child path is a field name, but the current object is not a struct. Path: %v, current obj: %#v", path, obj) - } - obj = obj.FieldByName(string(*pc)) - case wire.Index: // Embedded. - if obj.Kind() != reflect.Array { - Failf("next component in child path is an array index, but the current object is not an array. Path: %v, current obj: %#v", path, obj) - } - obj = obj.Index(int(pc)) - default: - panic("unreachable: switch should be exhaustive") - } - } - return obj -} - -// register registers a decode with a type. -// -// This type is only used to instantiate a new object if it has not been -// registered previously. This depends on the type provided if none is -// available in the object itself. -func (ds *decodeState) register(r *wire.Ref, typ reflect.Type) reflect.Value { - // Grow the objectsByID slice. - id := objectID(r.Root) - if len(ds.objectsByID) < int(id) { - ds.objectsByID = append(ds.objectsByID, make([]*objectDecodeState, int(id)-len(ds.objectsByID))...) - } - - // Does this object already exist? - ods := ds.objectsByID[id-1] - if ods != nil { - return walkChild(r.Dots, ods.obj) - } - - // Create the object. - if len(r.Dots) != 0 { - typ = ds.findType(r.Type) - } - v := reflect.New(typ) - ods = &objectDecodeState{ - id: id, - obj: v.Elem(), - } - ds.objectsByID[id-1] = ods - ds.pending.PushBack(ods) - - // Process any deferred objects & callbacks. - if encoded, ok := ds.deferred[id]; ok { - delete(ds.deferred, id) - ds.decodeObject(ods, ods.obj, encoded) - } - - return walkChild(r.Dots, ods.obj) -} - -// objectDecoder is for decoding structs. -type objectDecoder struct { - // ds is decodeState. - ds *decodeState - - // ods is current object being decoded. - ods *objectDecodeState - - // reconciledTypeEntry is the reconciled type information. - rte *reconciledTypeEntry - - // encoded is the encoded object state. - encoded *wire.Struct -} - -// load is helper for the public methods on Source. -func (od *objectDecoder) load(slot int, objPtr reflect.Value, wait bool, fn func()) { - // Note that we have reconciled the type and may remap the fields here - // to match what's expected by the decoder. The "slot" parameter here - // is in terms of the local type, where the fields in the encoded - // object are in terms of the wire object's type, which might be in a - // different order (but will have the same fields). - v := *od.encoded.Field(od.rte.FieldOrder[slot]) - od.ds.decodeObject(od.ods, objPtr.Elem(), v) - if wait { - // Mark this individual object a blocker. - od.ds.waitObject(od.ods, v, fn) - } -} - -// aterLoad implements Source.AfterLoad. -func (od *objectDecoder) afterLoad(fn func()) { - // Queue the local callback; this will execute when all of the above - // data dependencies have been cleared. - od.ods.addCallback(userCallback(fn)) -} - -// decodeStruct decodes a struct value. -func (ds *decodeState) decodeStruct(ods *objectDecodeState, obj reflect.Value, encoded *wire.Struct) { - if encoded.TypeID == 0 { - // Allow anonymous empty structs, but only if the encoded - // object also has no fields. - if encoded.Fields() == 0 && obj.NumField() == 0 { - return - } - - // Propagate an error. - Failf("empty struct on wire %#v has field mismatch with type %q", encoded, obj.Type().Name()) - } - - // Lookup the object type. - rte := ds.types.Lookup(typeID(encoded.TypeID), obj.Type()) - ods.typ = typeID(encoded.TypeID) - - // Invoke the loader. - od := objectDecoder{ - ds: ds, - ods: ods, - rte: rte, - encoded: encoded, - } - ds.stats.start(ods.typ) - defer ds.stats.done() - if sl, ok := obj.Addr().Interface().(SaverLoader); ok { - // Note: may be a registered empty struct which does not - // implement the saver/loader interfaces. - sl.StateLoad(ds.ctx, Source{internal: od}) - } -} - -// decodeMap decodes a map value. -func (ds *decodeState) decodeMap(ods *objectDecodeState, obj reflect.Value, encoded *wire.Map) { - if obj.IsNil() { - // See pointerTo. - obj.Set(reflect.MakeMap(obj.Type())) - } - for i := 0; i < len(encoded.Keys); i++ { - // Decode the objects. - kv := reflect.New(obj.Type().Key()).Elem() - vv := reflect.New(obj.Type().Elem()).Elem() - ds.decodeObject(ods, kv, encoded.Keys[i]) - ds.decodeObject(ods, vv, encoded.Values[i]) - ds.waitObject(ods, encoded.Keys[i], nil) - ds.waitObject(ods, encoded.Values[i], nil) - - // Set in the map. - obj.SetMapIndex(kv, vv) - } -} - -// decodeArray decodes an array value. -func (ds *decodeState) decodeArray(ods *objectDecodeState, obj reflect.Value, encoded *wire.Array) { - if len(encoded.Contents) != obj.Len() { - Failf("mismatching array length expect=%d, actual=%d", obj.Len(), len(encoded.Contents)) - } - // Decode the contents into the array. - for i := 0; i < len(encoded.Contents); i++ { - ds.decodeObject(ods, obj.Index(i), encoded.Contents[i]) - ds.waitObject(ods, encoded.Contents[i], nil) - } -} - -// findType finds the type for the given wire.TypeSpecs. -func (ds *decodeState) findType(t wire.TypeSpec) reflect.Type { - switch x := t.(type) { - case wire.TypeID: - typ := ds.types.LookupType(typeID(x)) - rte := ds.types.Lookup(typeID(x), typ) - return rte.LocalType - case *wire.TypeSpecPointer: - return reflect.PtrTo(ds.findType(x.Type)) - case *wire.TypeSpecArray: - return reflect.ArrayOf(int(x.Count), ds.findType(x.Type)) - case *wire.TypeSpecSlice: - return reflect.SliceOf(ds.findType(x.Type)) - case *wire.TypeSpecMap: - return reflect.MapOf(ds.findType(x.Key), ds.findType(x.Value)) - default: - // Should not happen. - Failf("unknown type %#v", t) - } - panic("unreachable") -} - -// decodeInterface decodes an interface value. -func (ds *decodeState) decodeInterface(ods *objectDecodeState, obj reflect.Value, encoded *wire.Interface) { - if _, ok := encoded.Type.(wire.TypeSpecNil); ok { - // Special case; the nil object. Just decode directly, which - // will read nil from the wire (if encoded correctly). - ds.decodeObject(ods, obj, encoded.Value) - return - } - - // We now need to resolve the actual type. - typ := ds.findType(encoded.Type) - - // We need to imbue type information here, then we can proceed to - // decode normally. In order to avoid issues with setting value-types, - // we create a new non-interface version of this object. We will then - // set the interface object to be equal to whatever we decode. - origObj := obj - obj = reflect.New(typ).Elem() - defer origObj.Set(obj) - - // With the object now having sufficient type information to actually - // have Set called on it, we can proceed to decode the value. - ds.decodeObject(ods, obj, encoded.Value) -} - -// isFloatEq determines if x and y represent the same value. -func isFloatEq(x float64, y float64) bool { - switch { - case math.IsNaN(x): - return math.IsNaN(y) - case math.IsInf(x, 1): - return math.IsInf(y, 1) - case math.IsInf(x, -1): - return math.IsInf(y, -1) - default: - return x == y - } -} - -// isComplexEq determines if x and y represent the same value. -func isComplexEq(x complex128, y complex128) bool { - return isFloatEq(real(x), real(y)) && isFloatEq(imag(x), imag(y)) -} - -// decodeObject decodes a object value. -func (ds *decodeState) decodeObject(ods *objectDecodeState, obj reflect.Value, encoded wire.Object) { - switch x := encoded.(type) { - case wire.Nil: // Fast path: first. - // We leave obj alone here. That's because if obj represents an - // interface, it may have been imbued with type information in - // decodeInterface, and we don't want to destroy that. - case *wire.Ref: - // Nil pointers may be encoded in a "forceValue" context. For - // those we just leave it alone as the value will already be - // correct (nil). - if id := objectID(x.Root); id == 0 { - return - } - - // Note that if this is a map type, we go through a level of - // indirection to allow for map aliasing. - if obj.Kind() == reflect.Map { - v := ds.register(x, obj.Type()) - if v.IsNil() { - // Note that we don't want to clobber the map - // if has already been decoded by decodeMap. We - // just make it so that we have a consistent - // reference when that eventually does happen. - v.Set(reflect.MakeMap(v.Type())) - } - obj.Set(v) - return - } - - // Normal assignment: authoritative only if no dots. - v := ds.register(x, obj.Type().Elem()) - obj.Set(reflectValueRWAddr(v)) - case wire.Bool: - obj.SetBool(bool(x)) - case wire.Int: - obj.SetInt(int64(x)) - if obj.Int() != int64(x) { - Failf("signed integer truncated from %v to %v", int64(x), obj.Int()) - } - case wire.Uint: - obj.SetUint(uint64(x)) - if obj.Uint() != uint64(x) { - Failf("unsigned integer truncated from %v to %v", uint64(x), obj.Uint()) - } - case wire.Float32: - obj.SetFloat(float64(x)) - case wire.Float64: - obj.SetFloat(float64(x)) - if !isFloatEq(obj.Float(), float64(x)) { - Failf("floating point number truncated from %v to %v", float64(x), obj.Float()) - } - case *wire.Complex64: - obj.SetComplex(complex128(*x)) - case *wire.Complex128: - obj.SetComplex(complex128(*x)) - if !isComplexEq(obj.Complex(), complex128(*x)) { - Failf("complex number truncated from %v to %v", complex128(*x), obj.Complex()) - } - case *wire.String: - obj.SetString(string(*x)) - case *wire.Slice: - // See *wire.Ref above; same applies. - if id := objectID(x.Ref.Root); id == 0 { - return - } - // Note that it's fine to slice the array here and assume that - // contents will still be filled in later on. - typ := reflect.ArrayOf(int(x.Capacity), obj.Type().Elem()) // The object type. - v := ds.register(&x.Ref, typ) - obj.Set(reflectValueRWSlice3(v, 0, int(x.Length), int(x.Capacity))) - case *wire.Array: - ds.decodeArray(ods, obj, x) - case *wire.Struct: - ds.decodeStruct(ods, obj, x) - case *wire.Map: - ds.decodeMap(ods, obj, x) - case *wire.Interface: - ds.decodeInterface(ods, obj, x) - default: - // Should not happen, not propagated as an error. - Failf("unknown object %#v for %q", encoded, obj.Type().Name()) - } -} - -// Load deserializes the object graph rooted at obj. -// -// This function may panic and should be run in safely(). -func (ds *decodeState) Load(obj reflect.Value) { - ds.stats.init() - defer ds.stats.fini(func(id typeID) string { - return ds.types.LookupName(id) - }) - - // Create the root object. - rootOds := &objectDecodeState{ - id: 1, - obj: obj, - } - ds.objectsByID = append(ds.objectsByID, rootOds) - ds.pending.PushBack(rootOds) - - // Read the number of objects. - numObjects, object, err := ReadHeader(&ds.r) - if err != nil { - Failf("header error: %w", err) - } - if !object { - Failf("object missing") - } - - // Decode all objects. - var ( - encoded wire.Object - ods *objectDecodeState - id objectID - tid = typeID(1) - ) - if err := safely(func() { - // Decode all objects in the stream. - // - // Note that the structure of this decoding loop should match the raw - // decoding loop in state/pretty/pretty.printer.printStream(). - for i := uint64(0); i < numObjects; { - // Unmarshal either a type object or object ID. - encoded = wire.Load(&ds.r) - switch we := encoded.(type) { - case *wire.Type: - ds.types.Register(we) - tid++ - encoded = nil - continue - case wire.Uint: - id = objectID(we) - i++ - // Unmarshal and resolve the actual object. - encoded = wire.Load(&ds.r) - ods = ds.lookup(id) - if ods != nil { - // Decode the object. - ds.decodeObject(ods, ods.obj, encoded) - } else { - // If an object hasn't had interest registered - // previously or isn't yet valid, we deferred - // decoding until interest is registered. - ds.deferred[id] = encoded - } - // For error handling. - ods = nil - encoded = nil - default: - Failf("wanted type or object ID, got %T", encoded) - } - } - }); err != nil { - // Include as much information as we can, taking into account - // the possible state transitions above. - if ods != nil { - Failf("error decoding object ID %d (%T) from %#v: %w", id, ods.obj.Interface(), encoded, err) - } else if encoded != nil { - Failf("error decoding from %#v: %w", encoded, err) - } else { - Failf("general decoding error: %w", err) - } - } - - // Check if we have any deferred objects. - numDeferred := 0 - for id, encoded := range ds.deferred { - numDeferred++ - if s, ok := encoded.(*wire.Struct); ok && s.TypeID != 0 { - typ := ds.types.LookupType(typeID(s.TypeID)) - Failf("unused deferred object: ID %d, type %v", id, typ) - } else { - Failf("unused deferred object: ID %d, %#v", id, encoded) - } - } - if numDeferred != 0 { - Failf("still had %d deferred objects", numDeferred) - } - - // Scan and fire all callbacks. We iterate over the list of incomplete - // objects until all have been finished. We stop iterating if no - // objects become complete (there is a dependency cycle). - // - // Note that we iterate backwards here, because there will be a strong - // tendendcy for blocking relationships to go from earlier objects to - // later (deeper) objects in the graph. This will reduce the number of - // iterations required to finish all objects. - if err := safely(func() { - for ds.pending.Back() != nil { - thisCycle := false - for ods = ds.pending.Back(); ods != nil; { - if ds.checkComplete(ods) { - thisCycle = true - break - } - ods = ods.Prev() - } - if !thisCycle { - break - } - } - }); err != nil { - Failf("error executing callbacks: %w\nfor object %#v", err, ods.obj.Interface()) - } - - // Check if we have any remaining dependency cycles. If there are any - // objects left in the pending list, then it must be due to a cycle. - if ods := ds.pending.Front(); ods != nil { - // This must be the result of a dependency cycle. - cycle := ods.findCycle() - var buf bytes.Buffer - buf.WriteString("dependency cycle: {") - for i, cycleOS := range cycle { - if i > 0 { - buf.WriteString(" => ") - } - fmt.Fprintf(&buf, "%q", cycleOS.obj.Type()) - } - buf.WriteString("}") - Failf("incomplete graph: %s", string(buf.Bytes())) - } -} - -// ReadHeader reads an object header. -// -// Each object written to the statefile is prefixed with a header. See -// WriteHeader for more information; these functions are exported to allow -// non-state writes to the file to play nice with debugging tools. -func ReadHeader(r *wire.Reader) (length uint64, object bool, err error) { - // Read the header. - err = safely(func() { - length = wire.LoadUint(r) - }) - if err != nil { - // On the header, pass raw I/O errors. - if sErr, ok := err.(*ErrState); ok { - return 0, false, sErr.Unwrap() - } - } - - // Decode whether the object is valid. - object = length&objectFlag != 0 - length &^= objectFlag - return -} diff --git a/vendor/gvisor.dev/gvisor/pkg/state/decode_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/state/decode_unsafe.go deleted file mode 100644 index a2fdf117a2..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/state/decode_unsafe.go +++ /dev/null @@ -1,76 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package state - -import ( - "fmt" - "reflect" - "runtime" - "unsafe" -) - -// reflectValueRWAddr is equivalent to obj.Addr(), except that the returned -// reflect.Value is usable in assignments even if obj was obtained by the use -// of unexported struct fields. -// -// Preconditions: obj.CanAddr(). -func reflectValueRWAddr(obj reflect.Value) reflect.Value { - return reflect.NewAt(obj.Type(), unsafe.Pointer(obj.UnsafeAddr())) -} - -// reflectValueRWSlice3 is equivalent to arr.Slice3(i, j, k), except that the -// returned reflect.Value is usable in assignments even if obj was obtained by -// the use of unexported struct fields. -// -// Preconditions: -// - arr.Kind() == reflect.Array. -// - i, j, k >= 0. -// - i <= j <= k <= arr.Len(). -func reflectValueRWSlice3(arr reflect.Value, i, j, k int) reflect.Value { - if arr.Kind() != reflect.Array { - panic(fmt.Sprintf("arr has kind %v, wanted %v", arr.Kind(), reflect.Array)) - } - if i < 0 || j < 0 || k < 0 { - panic(fmt.Sprintf("negative subscripts (%d, %d, %d)", i, j, k)) - } - if i > j { - panic(fmt.Sprintf("subscript i (%d) > j (%d)", i, j)) - } - if j > k { - panic(fmt.Sprintf("subscript j (%d) > k (%d)", j, k)) - } - if k > arr.Len() { - panic(fmt.Sprintf("subscript k (%d) > array length (%d)", k, arr.Len())) - } - - sliceTyp := reflect.SliceOf(arr.Type().Elem()) - if i == arr.Len() { - // By precondition, i == j == k == arr.Len(). - return reflect.MakeSlice(sliceTyp, 0, 0) - } - slh := reflect.SliceHeader{ - // reflect.Value.CanAddr() == false for arrays, so we need to get the - // address from the first element of the array. - Data: arr.Index(i).UnsafeAddr(), - Len: j - i, - Cap: k - i, - } - slobj := reflect.NewAt(sliceTyp, unsafe.Pointer(&slh)).Elem() - // Before slobj is constructed, arr holds the only pointer-typed pointer to - // the array since reflect.SliceHeader.Data is a uintptr, so arr must be - // kept alive. - runtime.KeepAlive(arr) - return slobj -} diff --git a/vendor/gvisor.dev/gvisor/pkg/state/deferred_list.go b/vendor/gvisor.dev/gvisor/pkg/state/deferred_list.go deleted file mode 100644 index a18b8bc2fb..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/state/deferred_list.go +++ /dev/null @@ -1,239 +0,0 @@ -package state - -// ElementMapper provides an identity mapping by default. -// -// This can be replaced to provide a struct that maps elements to linker -// objects, if they are not the same. An ElementMapper is not typically -// required if: Linker is left as is, Element is left as is, or Linker and -// Element are the same type. -type deferredElementMapper struct{} - -// linkerFor maps an Element to a Linker. -// -// This default implementation should be inlined. -// -//go:nosplit -func (deferredElementMapper) linkerFor(elem *objectEncodeState) *objectEncodeState { return elem } - -// List is an intrusive list. Entries can be added to or removed from the list -// in O(1) time and with no additional memory allocations. -// -// The zero value for List is an empty list ready to use. -// -// To iterate over a list (where l is a List): -// -// for e := l.Front(); e != nil; e = e.Next() { -// // do something with e. -// } -// -// +stateify savable -type deferredList struct { - head *objectEncodeState - tail *objectEncodeState -} - -// Reset resets list l to the empty state. -func (l *deferredList) Reset() { - l.head = nil - l.tail = nil -} - -// Empty returns true iff the list is empty. -// -//go:nosplit -func (l *deferredList) Empty() bool { - return l.head == nil -} - -// Front returns the first element of list l or nil. -// -//go:nosplit -func (l *deferredList) Front() *objectEncodeState { - return l.head -} - -// Back returns the last element of list l or nil. -// -//go:nosplit -func (l *deferredList) Back() *objectEncodeState { - return l.tail -} - -// Len returns the number of elements in the list. -// -// NOTE: This is an O(n) operation. -// -//go:nosplit -func (l *deferredList) Len() (count int) { - for e := l.Front(); e != nil; e = (deferredElementMapper{}.linkerFor(e)).Next() { - count++ - } - return count -} - -// PushFront inserts the element e at the front of list l. -// -//go:nosplit -func (l *deferredList) PushFront(e *objectEncodeState) { - linker := deferredElementMapper{}.linkerFor(e) - linker.SetNext(l.head) - linker.SetPrev(nil) - if l.head != nil { - deferredElementMapper{}.linkerFor(l.head).SetPrev(e) - } else { - l.tail = e - } - - l.head = e -} - -// PushFrontList inserts list m at the start of list l, emptying m. -// -//go:nosplit -func (l *deferredList) PushFrontList(m *deferredList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - deferredElementMapper{}.linkerFor(l.head).SetPrev(m.tail) - deferredElementMapper{}.linkerFor(m.tail).SetNext(l.head) - - l.head = m.head - } - m.head = nil - m.tail = nil -} - -// PushBack inserts the element e at the back of list l. -// -//go:nosplit -func (l *deferredList) PushBack(e *objectEncodeState) { - linker := deferredElementMapper{}.linkerFor(e) - linker.SetNext(nil) - linker.SetPrev(l.tail) - if l.tail != nil { - deferredElementMapper{}.linkerFor(l.tail).SetNext(e) - } else { - l.head = e - } - - l.tail = e -} - -// PushBackList inserts list m at the end of list l, emptying m. -// -//go:nosplit -func (l *deferredList) PushBackList(m *deferredList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - deferredElementMapper{}.linkerFor(l.tail).SetNext(m.head) - deferredElementMapper{}.linkerFor(m.head).SetPrev(l.tail) - - l.tail = m.tail - } - m.head = nil - m.tail = nil -} - -// InsertAfter inserts e after b. -// -//go:nosplit -func (l *deferredList) InsertAfter(b, e *objectEncodeState) { - bLinker := deferredElementMapper{}.linkerFor(b) - eLinker := deferredElementMapper{}.linkerFor(e) - - a := bLinker.Next() - - eLinker.SetNext(a) - eLinker.SetPrev(b) - bLinker.SetNext(e) - - if a != nil { - deferredElementMapper{}.linkerFor(a).SetPrev(e) - } else { - l.tail = e - } -} - -// InsertBefore inserts e before a. -// -//go:nosplit -func (l *deferredList) InsertBefore(a, e *objectEncodeState) { - aLinker := deferredElementMapper{}.linkerFor(a) - eLinker := deferredElementMapper{}.linkerFor(e) - - b := aLinker.Prev() - eLinker.SetNext(a) - eLinker.SetPrev(b) - aLinker.SetPrev(e) - - if b != nil { - deferredElementMapper{}.linkerFor(b).SetNext(e) - } else { - l.head = e - } -} - -// Remove removes e from l. -// -//go:nosplit -func (l *deferredList) Remove(e *objectEncodeState) { - linker := deferredElementMapper{}.linkerFor(e) - prev := linker.Prev() - next := linker.Next() - - if prev != nil { - deferredElementMapper{}.linkerFor(prev).SetNext(next) - } else if l.head == e { - l.head = next - } - - if next != nil { - deferredElementMapper{}.linkerFor(next).SetPrev(prev) - } else if l.tail == e { - l.tail = prev - } - - linker.SetNext(nil) - linker.SetPrev(nil) -} - -// Entry is a default implementation of Linker. Users can add anonymous fields -// of this type to their structs to make them automatically implement the -// methods needed by List. -// -// +stateify savable -type deferredEntry struct { - next *objectEncodeState - prev *objectEncodeState -} - -// Next returns the entry that follows e in the list. -// -//go:nosplit -func (e *deferredEntry) Next() *objectEncodeState { - return e.next -} - -// Prev returns the entry that precedes e in the list. -// -//go:nosplit -func (e *deferredEntry) Prev() *objectEncodeState { - return e.prev -} - -// SetNext assigns 'entry' as the entry that follows e in the list. -// -//go:nosplit -func (e *deferredEntry) SetNext(elem *objectEncodeState) { - e.next = elem -} - -// SetPrev assigns 'entry' as the entry that precedes e in the list. -// -//go:nosplit -func (e *deferredEntry) SetPrev(elem *objectEncodeState) { - e.prev = elem -} diff --git a/vendor/gvisor.dev/gvisor/pkg/state/encode.go b/vendor/gvisor.dev/gvisor/pkg/state/encode.go deleted file mode 100644 index 861be309fc..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/state/encode.go +++ /dev/null @@ -1,873 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package state - -import ( - "context" - "reflect" - "sort" - - "gvisor.dev/gvisor/pkg/state/wire" -) - -// objectEncodeState the type and identity of an object occupying a memory -// address range. This is the value type for addrSet, and the intrusive entry -// for the deferred list. -type objectEncodeState struct { - // id is the assigned ID for this object. - id objectID - - // obj is the object value. Note that this may be replaced if we - // encounter an object that contains this object. When this happens (in - // resolve), we will update existing references appropriately, below, - // and defer a re-encoding of the object. - obj reflect.Value - - // encoded is the encoded value of this object. Note that this may not - // be up to date if this object is still in the deferred list. - encoded wire.Object - - // how indicates whether this object should be encoded as a value. This - // is used only for deferred encoding. - how encodeStrategy - - // refs are the list of reference objects used by other objects - // referring to this object. When the object is updated, these - // references may be updated directly and automatically. - refs []*wire.Ref - - deferredEntry -} - -// encodeState is state used for encoding. -// -// The encoding process constructs a representation of the in-memory graph of -// objects before a single object is serialized. This is done to ensure that -// all references can be fully disambiguated. See resolve for more details. -type encodeState struct { - // ctx is the encode context. - ctx context.Context - - // w is the output stream. - w wire.Writer - - // types is the type database. - types typeEncodeDatabase - - // lastID is the last allocated object ID. - lastID objectID - - // values tracks the address ranges occupied by objects, along with the - // types of these objects. This is used to locate pointer targets, - // including pointers to fields within another type. - // - // Multiple objects may overlap in memory iff the larger object fully - // contains the smaller one, and the type of the smaller object matches - // a field or array element's type at the appropriate offset. An - // arbitrary number of objects may be nested in this manner. - // - // Note that this does not track zero-sized objects, those are tracked - // by zeroValues below. - values addrSet - - // zeroValues tracks zero-sized objects. - zeroValues map[reflect.Type]*objectEncodeState - - // deferred is the list of objects to be encoded. - deferred deferredList - - // pendingTypes is the list of types to be serialized. Serialization - // will occur when all objects have been encoded, but before pending is - // serialized. - pendingTypes []wire.Type - - // pending maps object IDs to objects to be serialized. Serialization does - // not actually occur until the full object graph is computed. - pending map[objectID]*objectEncodeState - - // encodedStructs maps reflect.Values representing structs to previous - // encodings of those structs. This is necessary to avoid duplicate calls - // to SaverLoader.StateSave() that may result in multiple calls to - // Sink.SaveValue() for a given field, resulting in object duplication. - encodedStructs map[reflect.Value]*wire.Struct - - // stats tracks time data. - stats Stats -} - -// isSameSizeParent returns true if child is a field value or element within -// parent. Only a struct or array can have a child value. -// -// isSameSizeParent deals with objects like this: -// -// struct child { -// // fields.. -// } -// -// struct parent { -// c child -// } -// -// var p parent -// record(&p.c) -// -// Here, &p and &p.c occupy the exact same address range. -// -// Or like this: -// -// struct child { -// // fields -// } -// -// var arr [1]parent -// record(&arr[0]) -// -// Similarly, &arr[0] and &arr[0].c have the exact same address range. -// -// Precondition: parent and child must occupy the same memory. -func isSameSizeParent(parent reflect.Value, childType reflect.Type) bool { - switch parent.Kind() { - case reflect.Struct: - for i := 0; i < parent.NumField(); i++ { - field := parent.Field(i) - if field.Type() == childType { - return true - } - // Recurse through any intermediate types. - if isSameSizeParent(field, childType) { - return true - } - // Does it make sense to keep going if the first field - // doesn't match? Yes, because there might be an - // arbitrary number of zero-sized fields before we get - // a match, and childType itself can be zero-sized. - } - return false - case reflect.Array: - // The only case where an array with more than one elements can - // return true is if childType is zero-sized. In such cases, - // it's ambiguous which element contains the match since a - // zero-sized child object fully fits in any of the zero-sized - // elements in an array... However since all elements are of - // the same type, we only need to check one element. - // - // For non-zero-sized childTypes, parent.Len() must be 1, but a - // combination of the precondition and an implicit comparison - // between the array element size and childType ensures this. - return parent.Len() > 0 && isSameSizeParent(parent.Index(0), childType) - default: - return false - } -} - -// nextID returns the next valid ID. -func (es *encodeState) nextID() objectID { - es.lastID++ - return objectID(es.lastID) -} - -// dummyAddr points to the dummy zero-sized address. -var dummyAddr = reflect.ValueOf(new(struct{})).Pointer() - -// resolve records the address range occupied by an object. -func (es *encodeState) resolve(obj reflect.Value, ref *wire.Ref) { - addr := obj.Pointer() - - // Is this a map pointer? Just record the single address. It is not - // possible to take any pointers into the map internals. - if obj.Kind() == reflect.Map { - if addr == 0 { - // Just leave the nil reference alone. This is fine, we - // may need to encode as a reference in this way. We - // return nil for our objectEncodeState so that anyone - // depending on this value knows there's nothing there. - return - } - seg, gap := es.values.Find(addr) - if seg.Ok() { - // Ensure the map types match. - existing := seg.Value() - if existing.obj.Type() != obj.Type() { - Failf("overlapping map objects at 0x%x: [new object] %#v [existing object type] %s", addr, obj, existing.obj) - } - - // No sense recording refs, maps may not be replaced by - // covering objects, they are maximal. - ref.Root = wire.Uint(existing.id) - return - } - - // Record the map. - r := addrRange{addr, addr + 1} - oes := &objectEncodeState{ - id: es.nextID(), - obj: obj, - how: encodeMapAsValue, - } - // Use Insert instead of InsertWithoutMergingUnchecked when race - // detection is enabled to get additional sanity-checking from Merge. - if !raceEnabled { - es.values.InsertWithoutMergingUnchecked(gap, r, oes) - } else { - es.values.Insert(gap, r, oes) - } - es.pending[oes.id] = oes - es.deferred.PushBack(oes) - - // See above: no ref recording. - ref.Root = wire.Uint(oes.id) - return - } - - // If not a map, then the object must be a pointer. - if obj.Kind() != reflect.Ptr { - Failf("attempt to record non-map and non-pointer object %#v", obj) - } - - obj = obj.Elem() // Value from here. - - // Is this a zero-sized type? - typ := obj.Type() - size := typ.Size() - if size == 0 { - if addr == dummyAddr { - // Zero-sized objects point to a dummy byte within the - // runtime. There's no sense recording this in the - // address map. We add this to the dedicated - // zeroValues. - // - // Note that zero-sized objects must be *true* - // zero-sized objects. They cannot be part of some - // larger object. In that case, they are assigned a - // 1-byte address at the end of the object. - oes, ok := es.zeroValues[typ] - if !ok { - oes = &objectEncodeState{ - id: es.nextID(), - obj: obj, - } - es.zeroValues[typ] = oes - es.pending[oes.id] = oes - es.deferred.PushBack(oes) - } - - // There's also no sense tracking back references. We - // know that this is a true zero-sized object, and not - // part of a larger container, so it will not change. - ref.Root = wire.Uint(oes.id) - return - } - size = 1 // See above. - } - - end := addr + size - r := addrRange{addr, end} - seg := es.values.LowerBoundSegment(addr) - var ( - oes *objectEncodeState - gap addrGapIterator - ) - - // Does at least one previously-registered object overlap this one? - if seg.Ok() && seg.Start() < end { - existing := seg.Value() - - if seg.Range() == r && typ == existing.obj.Type() { - // This exact object is already registered. Avoid the traversal and - // just return directly. We don't need to encode the type - // information or any dots here. - ref.Root = wire.Uint(existing.id) - existing.refs = append(existing.refs, ref) - return - } - - if seg.Range().IsSupersetOf(r) && (seg.Range() != r || isSameSizeParent(existing.obj, typ)) { - // This object is contained within a previously-registered object. - // Perform traversal from the container to the new object. - ref.Root = wire.Uint(existing.id) - ref.Dots = traverse(existing.obj.Type(), typ, seg.Start(), addr) - ref.Type = es.findType(existing.obj.Type()) - existing.refs = append(existing.refs, ref) - return - } - - // This object contains one or more previously-registered objects. - // Remove them and update existing references to use the new one. - oes := &objectEncodeState{ - // Reuse the root ID of the first contained element. - id: existing.id, - obj: obj, - } - type elementEncodeState struct { - addr uintptr - typ reflect.Type - refs []*wire.Ref - } - var ( - elems []elementEncodeState - gap addrGapIterator - ) - for { - // Each contained object should be completely contained within - // this one. - if raceEnabled && !r.IsSupersetOf(seg.Range()) { - Failf("containing object %#v does not contain existing object %#v", obj, existing.obj) - } - elems = append(elems, elementEncodeState{ - addr: seg.Start(), - typ: existing.obj.Type(), - refs: existing.refs, - }) - delete(es.pending, existing.id) - es.deferred.Remove(existing) - gap = es.values.Remove(seg) - seg = gap.NextSegment() - if !seg.Ok() || seg.Start() >= end { - break - } - existing = seg.Value() - } - wt := es.findType(typ) - for _, elem := range elems { - dots := traverse(typ, elem.typ, addr, elem.addr) - for _, ref := range elem.refs { - ref.Root = wire.Uint(oes.id) - ref.Dots = append(ref.Dots, dots...) - ref.Type = wt - } - oes.refs = append(oes.refs, elem.refs...) - } - // Finally register the new containing object. - if !raceEnabled { - es.values.InsertWithoutMergingUnchecked(gap, r, oes) - } else { - es.values.Insert(gap, r, oes) - } - es.pending[oes.id] = oes - es.deferred.PushBack(oes) - ref.Root = wire.Uint(oes.id) - oes.refs = append(oes.refs, ref) - return - } - - // No existing object overlaps this one. Register a new object. - oes = &objectEncodeState{ - id: es.nextID(), - obj: obj, - } - if seg.Ok() { - gap = seg.PrevGap() - } else { - gap = es.values.LastGap() - } - if !raceEnabled { - es.values.InsertWithoutMergingUnchecked(gap, r, oes) - } else { - es.values.Insert(gap, r, oes) - } - es.pending[oes.id] = oes - es.deferred.PushBack(oes) - ref.Root = wire.Uint(oes.id) - oes.refs = append(oes.refs, ref) -} - -// traverse searches for a target object within a root object, where the target -// object is a struct field or array element within root, with potentially -// multiple intervening types. traverse returns the set of field or element -// traversals required to reach the target. -// -// Note that for efficiency, traverse returns the dots in the reverse order. -// That is, the first traversal required will be the last element of the list. -// -// Precondition: The target object must lie completely within the range defined -// by [rootAddr, rootAddr + sizeof(rootType)]. -func traverse(rootType, targetType reflect.Type, rootAddr, targetAddr uintptr) []wire.Dot { - // Recursion base case: the types actually match. - if targetType == rootType && targetAddr == rootAddr { - return nil - } - - switch rootType.Kind() { - case reflect.Struct: - offset := targetAddr - rootAddr - for i := rootType.NumField(); i > 0; i-- { - field := rootType.Field(i - 1) - // The first field from the end with an offset that is - // smaller than or equal to our address offset is where - // the target is located. Traverse from there. - if field.Offset <= offset { - dots := traverse(field.Type, targetType, rootAddr+field.Offset, targetAddr) - fieldName := wire.FieldName(field.Name) - return append(dots, &fieldName) - } - } - // Should never happen; the target should be reachable. - Failf("no field in root type %v contains target type %v", rootType, targetType) - - case reflect.Array: - // Since arrays have homogeneous types, all elements have the - // same size and we can compute where the target lives. This - // does not matter for the purpose of typing, but matters for - // the purpose of computing the address of the given index. - elemSize := int(rootType.Elem().Size()) - n := int(targetAddr-rootAddr) / elemSize // Relies on integer division rounding down. - if rootType.Len() < n { - Failf("traversal target of type %v @%x is beyond the end of the array type %v @%x with %v elements", - targetType, targetAddr, rootType, rootAddr, rootType.Len()) - } - dots := traverse(rootType.Elem(), targetType, rootAddr+uintptr(n*elemSize), targetAddr) - return append(dots, wire.Index(n)) - - default: - // For any other type, there's no possibility of aliasing so if - // the types didn't match earlier then we have an address - // collision which shouldn't be possible at this point. - Failf("traverse failed for root type %v and target type %v", rootType, targetType) - } - panic("unreachable") -} - -// encodeMap encodes a map. -func (es *encodeState) encodeMap(obj reflect.Value, dest *wire.Object) { - if obj.IsNil() { - // Because there is a difference between a nil map and an empty - // map, we need to not decode in the case of a truly nil map. - *dest = wire.Nil{} - return - } - l := obj.Len() - m := &wire.Map{ - Keys: make([]wire.Object, l), - Values: make([]wire.Object, l), - } - *dest = m - for i, k := range obj.MapKeys() { - v := obj.MapIndex(k) - // Map keys must be encoded using the full value because the - // type will be omitted after the first key. - es.encodeObject(k, encodeAsValue, &m.Keys[i]) - es.encodeObject(v, encodeAsValue, &m.Values[i]) - } -} - -// objectEncoder is for encoding structs. -type objectEncoder struct { - // es is encodeState. - es *encodeState - - // encoded is the encoded struct. - encoded *wire.Struct -} - -// save is called by the public methods on Sink. -func (oe *objectEncoder) save(slot int, obj reflect.Value) { - fieldValue := oe.encoded.Field(slot) - oe.es.encodeObject(obj, encodeDefault, fieldValue) -} - -// encodeStruct encodes a composite object. -func (es *encodeState) encodeStruct(obj reflect.Value, dest *wire.Object) { - if s, ok := es.encodedStructs[obj]; ok { - *dest = s - return - } - s := &wire.Struct{} - *dest = s - es.encodedStructs[obj] = s - - // Ensure that the obj is addressable. There are two cases when it is - // not. First, is when this is dispatched via SaveValue. Second, when - // this is a map key as a struct. Either way, we need to make a copy to - // obtain an addressable value. - if !obj.CanAddr() { - localObj := reflect.New(obj.Type()) - localObj.Elem().Set(obj) - obj = localObj.Elem() - } - - // Look the type up in the database. - te, ok := es.types.Lookup(obj.Type()) - if te == nil { - if obj.NumField() == 0 { - // Allow unregistered anonymous, empty structs. This - // will just return success without ever invoking the - // passed function. This uses the immutable EmptyStruct - // variable to prevent an allocation in this case. - // - // Note that this mechanism does *not* work for - // interfaces in general. So you can't dispatch - // non-registered empty structs via interfaces because - // then they can't be restored. - s.Alloc(0) - return - } - // We need a SaverLoader for struct types. - Failf("struct %T does not implement SaverLoader", obj.Interface()) - } - if !ok { - // Queue the type to be serialized. - es.pendingTypes = append(es.pendingTypes, te.Type) - } - - // Invoke the provided saver. - s.TypeID = wire.TypeID(te.ID) - s.Alloc(len(te.Fields)) - oe := objectEncoder{ - es: es, - encoded: s, - } - es.stats.start(te.ID) - defer es.stats.done() - if sl, ok := obj.Addr().Interface().(SaverLoader); ok { - // Note: may be a registered empty struct which does not - // implement the saver/loader interfaces. - sl.StateSave(Sink{internal: oe}) - } -} - -// encodeArray encodes an array. -func (es *encodeState) encodeArray(obj reflect.Value, dest *wire.Object) { - l := obj.Len() - a := &wire.Array{ - Contents: make([]wire.Object, l), - } - *dest = a - for i := 0; i < l; i++ { - // We need to encode the full value because arrays are encoded - // using the type information from only the first element. - es.encodeObject(obj.Index(i), encodeAsValue, &a.Contents[i]) - } -} - -// findType recursively finds type information. -func (es *encodeState) findType(typ reflect.Type) wire.TypeSpec { - // First: check if this is a proper type. It's possible for pointers, - // slices, arrays, maps, etc to all have some different type. - te, ok := es.types.Lookup(typ) - if te != nil { - if !ok { - // See encodeStruct. - es.pendingTypes = append(es.pendingTypes, te.Type) - } - return wire.TypeID(te.ID) - } - - switch typ.Kind() { - case reflect.Ptr: - return &wire.TypeSpecPointer{ - Type: es.findType(typ.Elem()), - } - case reflect.Slice: - return &wire.TypeSpecSlice{ - Type: es.findType(typ.Elem()), - } - case reflect.Array: - return &wire.TypeSpecArray{ - Count: wire.Uint(typ.Len()), - Type: es.findType(typ.Elem()), - } - case reflect.Map: - return &wire.TypeSpecMap{ - Key: es.findType(typ.Key()), - Value: es.findType(typ.Elem()), - } - default: - // After potentially chasing many pointers, the - // ultimate type of the object is not known. - Failf("type %q is not known", typ) - } - panic("unreachable") -} - -// encodeInterface encodes an interface. -func (es *encodeState) encodeInterface(obj reflect.Value, dest *wire.Object) { - // Dereference the object. - obj = obj.Elem() - if !obj.IsValid() { - // Special case: the nil object. - *dest = &wire.Interface{ - Type: wire.TypeSpecNil{}, - Value: wire.Nil{}, - } - return - } - - // Encode underlying object. - i := &wire.Interface{ - Type: es.findType(obj.Type()), - } - *dest = i - es.encodeObject(obj, encodeAsValue, &i.Value) -} - -// isPrimitive returns true if this is a primitive object, or a composite -// object composed entirely of primitives. -func isPrimitiveZero(typ reflect.Type) bool { - switch typ.Kind() { - case reflect.Ptr: - // Pointers are always treated as primitive types because we - // won't encode directly from here. Returning true here won't - // prevent the object from being encoded correctly. - return true - case reflect.Bool: - return true - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return true - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - return true - case reflect.Float32, reflect.Float64: - return true - case reflect.Complex64, reflect.Complex128: - return true - case reflect.String: - return true - case reflect.Slice: - // The slice itself a primitive, but not necessarily the array - // that points to. This is similar to a pointer. - return true - case reflect.Array: - // We cannot treat an array as a primitive, because it may be - // composed of structures or other things with side-effects. - return isPrimitiveZero(typ.Elem()) - case reflect.Interface: - // Since we now that this type is the zero type, the interface - // value must be zero. Therefore this is primitive. - return true - case reflect.Struct: - return false - case reflect.Map: - // The isPrimitiveZero function is called only on zero-types to - // see if it's safe to serialize. Since a zero map has no - // elements, it is safe to treat as a primitive. - return true - default: - Failf("unknown type %q", typ.Name()) - } - panic("unreachable") -} - -// encodeStrategy is the strategy used for encodeObject. -type encodeStrategy int - -const ( - // encodeDefault means types are encoded normally as references. - encodeDefault encodeStrategy = iota - - // encodeAsValue means that types will never take short-circuited and - // will always be encoded as a normal value. - encodeAsValue - - // encodeMapAsValue means that even maps will be fully encoded. - encodeMapAsValue -) - -// encodeObject encodes an object. -func (es *encodeState) encodeObject(obj reflect.Value, how encodeStrategy, dest *wire.Object) { - if how == encodeDefault && isPrimitiveZero(obj.Type()) && obj.IsZero() { - *dest = wire.Nil{} - return - } - switch obj.Kind() { - case reflect.Ptr: // Fast path: first. - r := new(wire.Ref) - *dest = r - if obj.IsNil() { - // May be in an array or elsewhere such that a value is - // required. So we encode as a reference to the zero - // object, which does not exist. Note that this has to - // be handled correctly in the decode path as well. - return - } - es.resolve(obj, r) - case reflect.Bool: - *dest = wire.Bool(obj.Bool()) - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - *dest = wire.Int(obj.Int()) - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: - *dest = wire.Uint(obj.Uint()) - case reflect.Float32: - *dest = wire.Float32(obj.Float()) - case reflect.Float64: - *dest = wire.Float64(obj.Float()) - case reflect.Complex64: - c := wire.Complex64(obj.Complex()) - *dest = &c // Needs alloc. - case reflect.Complex128: - c := wire.Complex128(obj.Complex()) - *dest = &c // Needs alloc. - case reflect.String: - s := wire.String(obj.String()) - *dest = &s // Needs alloc. - case reflect.Array: - es.encodeArray(obj, dest) - case reflect.Slice: - s := &wire.Slice{ - Capacity: wire.Uint(obj.Cap()), - Length: wire.Uint(obj.Len()), - } - *dest = s - // Note that we do need to provide a wire.Slice type here as - // how is not encodeDefault. If this were the case, then it - // would have been caught by the IsZero check above and we - // would have just used wire.Nil{}. - if obj.IsNil() { - return - } - // Slices need pointer resolution. - es.resolve(arrayFromSlice(obj), &s.Ref) - case reflect.Interface: - es.encodeInterface(obj, dest) - case reflect.Struct: - es.encodeStruct(obj, dest) - case reflect.Map: - if how == encodeMapAsValue { - es.encodeMap(obj, dest) - return - } - r := new(wire.Ref) - *dest = r - es.resolve(obj, r) - default: - Failf("unknown object %#v", obj.Interface()) - panic("unreachable") - } -} - -// Save serializes the object graph rooted at obj. -func (es *encodeState) Save(obj reflect.Value) { - es.stats.init() - defer es.stats.fini(func(id typeID) string { - return es.pendingTypes[id-1].Name - }) - - // Resolve the first object, which should queue a pile of additional - // objects on the pending list. All queued objects should be fully - // resolved, and we should be able to serialize after this call. - var root wire.Ref - es.resolve(obj.Addr(), &root) - - // Encode the graph. - var oes *objectEncodeState - if err := safely(func() { - for oes = es.deferred.Front(); oes != nil; oes = es.deferred.Front() { - // Remove and encode the object. Note that as a result - // of this encoding, the object may be enqueued on the - // deferred list yet again. That's expected, and why it - // is removed first. - es.deferred.Remove(oes) - es.encodeObject(oes.obj, oes.how, &oes.encoded) - } - }); err != nil { - // Include the object in the error message. - Failf("encoding error: %w\nfor object %#v", err, oes.obj.Interface()) - } - - // Check that we have objects to serialize. - if len(es.pending) == 0 { - Failf("pending is empty?") - } - - // Write the header with the number of objects. - if err := WriteHeader(&es.w, uint64(len(es.pending)), true); err != nil { - Failf("error writing header: %w", err) - } - - // Serialize all pending types and pending objects. Note that we don't - // bother removing from this list as we walk it because that just - // wastes time. It will not change after this point. - if err := safely(func() { - for _, wt := range es.pendingTypes { - // Encode the type. - wire.Save(&es.w, &wt) - } - // Emit objects in ID order. - ids := make([]objectID, 0, len(es.pending)) - for id := range es.pending { - ids = append(ids, id) - } - sort.Slice(ids, func(i, j int) bool { - return ids[i] < ids[j] - }) - for _, id := range ids { - // Encode the id. - wire.Save(&es.w, wire.Uint(id)) - // Marshal the object. - oes := es.pending[id] - wire.Save(&es.w, oes.encoded) - } - }); err != nil { - // Include the object and the error. - Failf("error serializing object %#v: %w", oes.encoded, err) - } -} - -// objectFlag indicates that the length is a # of objects, rather than a raw -// byte length. When this is set on a length header in the stream, it may be -// decoded appropriately. -const objectFlag uint64 = 1 << 63 - -// WriteHeader writes a header. -// -// Each object written to the statefile should be prefixed with a header. In -// order to generate statefiles that play nicely with debugging tools, raw -// writes should be prefixed with a header with object set to false and the -// appropriate length. This will allow tools to skip these regions. -func WriteHeader(w *wire.Writer, length uint64, object bool) error { - // Sanity check the length. - if length&objectFlag != 0 { - Failf("impossibly huge length: %d", length) - } - if object { - length |= objectFlag - } - - // Write a header. - return safely(func() { - wire.SaveUint(w, length) - }) -} - -// addrSetFunctions is used by addrSet. -type addrSetFunctions struct{} - -func (addrSetFunctions) MinKey() uintptr { - return 0 -} - -func (addrSetFunctions) MaxKey() uintptr { - return ^uintptr(0) -} - -func (addrSetFunctions) ClearValue(val **objectEncodeState) { - *val = nil -} - -func (addrSetFunctions) Merge(r1 addrRange, val1 *objectEncodeState, r2 addrRange, val2 *objectEncodeState) (*objectEncodeState, bool) { - if val1.obj == val2.obj { - // This, should never happen. It would indicate that the same - // object exists in two non-contiguous address ranges. Note - // that this assertion can only be triggered if the race - // detector is enabled. - Failf("unexpected merge in addrSet @ %v and %v: %#v and %#v", r1, r2, val1.obj, val2.obj) - } - // Reject the merge. - return val1, false -} - -func (addrSetFunctions) Split(r addrRange, val *objectEncodeState, _ uintptr) (*objectEncodeState, *objectEncodeState) { - // A split should never happen: we don't remove ranges. - Failf("unexpected split in addrSet @ %v: %#v", r, val.obj) - panic("unreachable") -} diff --git a/vendor/gvisor.dev/gvisor/pkg/state/encode_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/state/encode_unsafe.go deleted file mode 100644 index 78e36e76c9..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/state/encode_unsafe.go +++ /dev/null @@ -1,32 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package state - -import ( - "reflect" - "unsafe" -) - -// arrayFromSlice constructs a new pointer to the slice data. -// -// It would be similar to the following: -// -// x := make([]Foo, l, c) -// a := ([l]Foo*)(unsafe.Pointer(x[0])) -func arrayFromSlice(obj reflect.Value) reflect.Value { - return reflect.NewAt( - reflect.ArrayOf(obj.Cap(), obj.Type().Elem()), - unsafe.Pointer(obj.Pointer())) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/state/state.go b/vendor/gvisor.dev/gvisor/pkg/state/state.go deleted file mode 100644 index 6251ce2752..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/state/state.go +++ /dev/null @@ -1,324 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package state provides functionality related to saving and loading object -// graphs. For most types, it provides a set of default saving / loading logic -// that will be invoked automatically if custom logic is not defined. -// -// Kind Support -// ---- ------- -// Bool default -// Int default -// Int8 default -// Int16 default -// Int32 default -// Int64 default -// Uint default -// Uint8 default -// Uint16 default -// Uint32 default -// Uint64 default -// Float32 default -// Float64 default -// Complex64 default -// Complex128 default -// Array default -// Chan custom -// Func custom -// Interface default -// Map default -// Ptr default -// Slice default -// String default -// Struct custom (*) Unless zero-sized. -// UnsafePointer custom -// -// See README.md for an overview of how encoding and decoding works. -package state - -import ( - "context" - "fmt" - "io" - "reflect" - "runtime" - - "gvisor.dev/gvisor/pkg/state/wire" -) - -// objectID is a unique identifier assigned to each object to be serialized. -// Each instance of an object is considered separately, i.e. if there are two -// objects of the same type in the object graph being serialized, they'll be -// assigned unique objectIDs. -type objectID uint32 - -// typeID is the identifier for a type. Types are serialized and tracked -// alongside objects in order to avoid the overhead of encoding field names in -// all objects. -type typeID uint32 - -// ErrState is returned when an error is encountered during encode/decode. -type ErrState struct { - // err is the underlying error. - err error - - // trace is the stack trace. - trace string -} - -// Error returns a sensible description of the state error. -func (e *ErrState) Error() string { - return fmt.Sprintf("%v:\n%s", e.err, e.trace) -} - -// Unwrap implements standard unwrapping. -func (e *ErrState) Unwrap() error { - return e.err -} - -// Save saves the given object state. -func Save(ctx context.Context, w io.Writer, rootPtr any) (Stats, error) { - // Create the encoding state. - es := encodeState{ - ctx: ctx, - w: wire.Writer{Writer: w}, - types: makeTypeEncodeDatabase(), - zeroValues: make(map[reflect.Type]*objectEncodeState), - pending: make(map[objectID]*objectEncodeState), - encodedStructs: make(map[reflect.Value]*wire.Struct), - } - - // Perform the encoding. - err := safely(func() { - es.Save(reflect.ValueOf(rootPtr).Elem()) - }) - return es.stats, err -} - -// Load loads a checkpoint. -func Load(ctx context.Context, r io.Reader, rootPtr any) (Stats, error) { - // Create the decoding state. - ds := decodeState{ - ctx: ctx, - r: wire.Reader{Reader: r}, - types: makeTypeDecodeDatabase(), - deferred: make(map[objectID]wire.Object), - } - - // Attempt our decode. - err := safely(func() { - ds.Load(reflect.ValueOf(rootPtr).Elem()) - }) - return ds.stats, err -} - -// Sink is used for Type.StateSave. -type Sink struct { - internal objectEncoder -} - -// Save adds the given object to the map. -// -// You should pass always pointers to the object you are saving. For example: -// -// type X struct { -// A int -// B *int -// } -// -// func (x *X) StateTypeInfo(m Sink) state.TypeInfo { -// return state.TypeInfo{ -// Name: "pkg.X", -// Fields: []string{ -// "A", -// "B", -// }, -// } -// } -// -// func (x *X) StateSave(m Sink) { -// m.Save(0, &x.A) // Field is A. -// m.Save(1, &x.B) // Field is B. -// } -// -// func (x *X) StateLoad(m Source) { -// m.Load(0, &x.A) // Field is A. -// m.Load(1, &x.B) // Field is B. -// } -func (s Sink) Save(slot int, objPtr any) { - s.internal.save(slot, reflect.ValueOf(objPtr).Elem()) -} - -// SaveValue adds the given object value to the map. -// -// This should be used for values where pointers are not available, or casts -// are required during Save/Load. -// -// For example, if we want to cast external package type P.Foo to int64: -// -// func (x *X) StateSave(m Sink) { -// m.SaveValue(0, "A", int64(x.A)) -// } -// -// func (x *X) StateLoad(m Source) { -// m.LoadValue(0, new(int64), func(x any) { -// x.A = P.Foo(x.(int64)) -// }) -// } -func (s Sink) SaveValue(slot int, obj any) { - s.internal.save(slot, reflect.ValueOf(obj)) -} - -// Context returns the context object provided at save time. -func (s Sink) Context() context.Context { - return s.internal.es.ctx -} - -// Type is an interface that must be implemented by Struct objects. This allows -// these objects to be serialized while minimizing runtime reflection required. -// -// All these methods can be automatically generated by the go_statify tool. -type Type interface { - // StateTypeName returns the type's name. - // - // This is used for matching type information during encoding and - // decoding, as well as dynamic interface dispatch. This should be - // globally unique. - StateTypeName() string - - // StateFields returns information about the type. - // - // Fields is the set of fields for the object. Calls to Sink.Save and - // Source.Load must be made in-order with respect to these fields. - // - // This will be called at most once per serialization. - StateFields() []string -} - -// SaverLoader must be implemented by struct types. -type SaverLoader interface { - // StateSave saves the state of the object to the given Map. - StateSave(Sink) - - // StateLoad loads the state of the object. - StateLoad(context.Context, Source) -} - -// Source is used for Type.StateLoad. -type Source struct { - internal objectDecoder -} - -// Load loads the given object passed as a pointer.. -// -// See Sink.Save for an example. -func (s Source) Load(slot int, objPtr any) { - s.internal.load(slot, reflect.ValueOf(objPtr), false, nil) -} - -// LoadWait loads the given objects from the map, and marks it as requiring all -// AfterLoad executions to complete prior to running this object's AfterLoad. -// -// See Sink.Save for an example. -func (s Source) LoadWait(slot int, objPtr any) { - s.internal.load(slot, reflect.ValueOf(objPtr), true, nil) -} - -// LoadValue loads the given object value from the map. -// -// See Sink.SaveValue for an example. -func (s Source) LoadValue(slot int, objPtr any, fn func(any)) { - o := reflect.ValueOf(objPtr) - s.internal.load(slot, o, true, func() { fn(o.Elem().Interface()) }) -} - -// AfterLoad schedules a function execution when all objects have been -// allocated and their automated loading and customized load logic have been -// executed. fn will not be executed until all of current object's -// dependencies' AfterLoad() logic, if exist, have been executed. -func (s Source) AfterLoad(fn func()) { - s.internal.afterLoad(fn) -} - -// Context returns the context object provided at load time. -func (s Source) Context() context.Context { - return s.internal.ds.ctx -} - -// IsZeroValue checks if the given value is the zero value. -// -// This function is used by the stateify tool. -func IsZeroValue(val any) bool { - return val == nil || reflect.ValueOf(val).Elem().IsZero() -} - -// Failf is a wrapper around panic that should be used to generate errors that -// can be caught during saving and loading. -func Failf(fmtStr string, v ...any) { - panic(fmt.Errorf(fmtStr, v...)) -} - -// safely executes the given function, catching a panic and unpacking as an -// error. -// -// The error flow through the state package uses panic and recover. There are -// two important reasons for this: -// -// 1) Many of the reflection methods will already panic with invalid data or -// violated assumptions. We would want to recover anyways here. -// -// 2) It allows us to eliminate boilerplate within Save() and Load() functions. -// In nearly all cases, when the low-level serialization functions fail, you -// will want the checkpoint to fail anyways. Plumbing errors through every -// method doesn't add a lot of value. If there are specific error conditions -// that you'd like to handle, you should add appropriate functionality to -// objects themselves prior to calling Save() and Load(). -func safely(fn func()) (err error) { - defer func() { - if r := recover(); r != nil { - if es, ok := r.(*ErrState); ok { - err = es // Propagate. - return - } - - // Build a new state error. - es := new(ErrState) - if e, ok := r.(error); ok { - es.err = e - } else { - es.err = fmt.Errorf("%v", r) - } - - // Make a stack. We don't know how big it will be ahead - // of time, but want to make sure we get the whole - // thing. So we just do a stupid brute force approach. - var stack []byte - for sz := 1024; ; sz *= 2 { - stack = make([]byte, sz) - n := runtime.Stack(stack, false) - if n < sz { - es.trace = string(stack[:n]) - break - } - } - - // Set the error. - err = es - } - }() - - // Execute the function. - fn() - return nil -} diff --git a/vendor/gvisor.dev/gvisor/pkg/state/state_norace.go b/vendor/gvisor.dev/gvisor/pkg/state/state_norace.go deleted file mode 100644 index be09d61416..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/state/state_norace.go +++ /dev/null @@ -1,20 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build !race -// +build !race - -package state - -var raceEnabled = false diff --git a/vendor/gvisor.dev/gvisor/pkg/state/state_race.go b/vendor/gvisor.dev/gvisor/pkg/state/state_race.go deleted file mode 100644 index c9f4fd5cf4..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/state/state_race.go +++ /dev/null @@ -1,20 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build race -// +build race - -package state - -var raceEnabled = true diff --git a/vendor/gvisor.dev/gvisor/pkg/state/stats.go b/vendor/gvisor.dev/gvisor/pkg/state/stats.go deleted file mode 100644 index eaec664a17..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/state/stats.go +++ /dev/null @@ -1,145 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package state - -import ( - "bytes" - "fmt" - "sort" - "time" -) - -type statEntry struct { - count uint - total time.Duration -} - -// Stats tracks encode / decode timing. -// -// This currently provides a meaningful String function and no other way to -// extract stats about individual types. -// -// All exported receivers accept nil. -type Stats struct { - // byType contains a breakdown of time spent by type. - // - // This is indexed *directly* by typeID, including zero. - byType []statEntry - - // stack contains objects in progress. - stack []typeID - - // names contains type names. - // - // This is also indexed *directly* by typeID, including zero, which we - // hard-code as "state.default". This is only resolved by calling fini - // on the stats object. - names []string - - // last is the last start time. - last time.Time -} - -// init initializes statistics. -func (s *Stats) init() { - s.last = time.Now() - s.stack = append(s.stack, 0) -} - -// fini finalizes statistics. -func (s *Stats) fini(resolve func(id typeID) string) { - s.done() - - // Resolve all type names. - s.names = make([]string, len(s.byType)) - s.names[0] = "state.default" // See above. - for id := typeID(1); int(id) < len(s.names); id++ { - s.names[id] = resolve(id) - } -} - -// sample adds the samples to the given object. -func (s *Stats) sample(id typeID) { - now := time.Now() - if len(s.byType) <= int(id) { - // Allocate all the missing entries in one fell swoop. - s.byType = append(s.byType, make([]statEntry, 1+int(id)-len(s.byType))...) - } - s.byType[id].total += now.Sub(s.last) - s.last = now -} - -// start starts a sample. -func (s *Stats) start(id typeID) { - last := s.stack[len(s.stack)-1] - s.sample(last) - s.stack = append(s.stack, id) -} - -// done finishes the current sample. -func (s *Stats) done() { - last := s.stack[len(s.stack)-1] - s.sample(last) - s.byType[last].count++ - s.stack = s.stack[:len(s.stack)-1] -} - -type sliceEntry struct { - name string - entry *statEntry -} - -// String returns a table representation of the stats. -func (s *Stats) String() string { - // Build a list of stat entries. - ss := make([]sliceEntry, 0, len(s.byType)) - for id := 0; id < len(s.names); id++ { - ss = append(ss, sliceEntry{ - name: s.names[id], - entry: &s.byType[id], - }) - } - - // Sort by total time (descending). - sort.Slice(ss, func(i, j int) bool { - return ss[i].entry.total > ss[j].entry.total - }) - - // Print the stat results. - var ( - buf bytes.Buffer - count uint - total time.Duration - ) - buf.WriteString("\n") - buf.WriteString(fmt.Sprintf("% 16s | % 8s | % 16s | %s\n", "total", "count", "per", "type")) - buf.WriteString("-----------------+----------+------------------+----------------\n") - for _, se := range ss { - if se.entry.count == 0 { - // Since we store all types linearly, we are not - // guaranteed that any entry actually has time. - continue - } - count += se.entry.count - total += se.entry.total - per := se.entry.total / time.Duration(se.entry.count) - buf.WriteString(fmt.Sprintf("% 16s | %8d | % 16s | %s\n", - se.entry.total, se.entry.count, per, se.name)) - } - buf.WriteString("-----------------+----------+------------------+----------------\n") - buf.WriteString(fmt.Sprintf("% 16s | % 8d | % 16s | [all]", - total, count, total/time.Duration(count))) - return string(buf.Bytes()) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/state/types.go b/vendor/gvisor.dev/gvisor/pkg/state/types.go deleted file mode 100644 index 09f889084c..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/state/types.go +++ /dev/null @@ -1,384 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package state - -import ( - "reflect" - "sort" - - "gvisor.dev/gvisor/pkg/state/wire" -) - -// assertValidType asserts that the type is valid. -func assertValidType(name string, fields []string) { - if name == "" { - Failf("type has empty name") - } - fieldsCopy := make([]string, len(fields)) - for i := 0; i < len(fields); i++ { - if fields[i] == "" { - Failf("field has empty name for type %q", name) - } - fieldsCopy[i] = fields[i] - } - sort.Slice(fieldsCopy, func(i, j int) bool { - return fieldsCopy[i] < fieldsCopy[j] - }) - for i := range fieldsCopy { - if i > 0 && fieldsCopy[i-1] == fieldsCopy[i] { - Failf("duplicate field %q for type %s", fieldsCopy[i], name) - } - } -} - -// typeEntry is an entry in the typeDatabase. -type typeEntry struct { - ID typeID - wire.Type -} - -// reconciledTypeEntry is a reconciled entry in the typeDatabase. -type reconciledTypeEntry struct { - wire.Type - LocalType reflect.Type - FieldOrder []int -} - -// typeEncodeDatabase is an internal TypeInfo database for encoding. -type typeEncodeDatabase struct { - // byType maps by type to the typeEntry. - byType map[reflect.Type]*typeEntry - - // lastID is the last used ID. - lastID typeID -} - -// makeTypeEncodeDatabase makes a typeDatabase. -func makeTypeEncodeDatabase() typeEncodeDatabase { - return typeEncodeDatabase{ - byType: make(map[reflect.Type]*typeEntry), - } -} - -// typeDecodeDatabase is an internal TypeInfo database for decoding. -type typeDecodeDatabase struct { - // byID maps by ID to type. - byID []*reconciledTypeEntry - - // pending are entries that are pending validation by Lookup. These - // will be reconciled with actual objects. Note that these will also be - // used to lookup types by name, since they may not be reconciled and - // there's little value to deleting from this map. - pending []*wire.Type -} - -// makeTypeDecodeDatabase makes a typeDatabase. -func makeTypeDecodeDatabase() typeDecodeDatabase { - return typeDecodeDatabase{} -} - -// lookupNameFields extracts the name and fields from an object. -func lookupNameFields(typ reflect.Type) (string, []string, bool) { - v := reflect.Zero(reflect.PtrTo(typ)).Interface() - t, ok := v.(Type) - if !ok { - // Is this a primitive? - if typ.Kind() == reflect.Interface { - return interfaceType, nil, true - } - name := typ.Name() - if _, ok := primitiveTypeDatabase[name]; !ok { - // This is not a known type, and not a primitive. The - // encoder may proceed for anonymous empty structs, or - // it may deference the type pointer and try again. - return "", nil, false - } - return name, nil, true - } - // Sanity check the type. - if raceEnabled { - if _, ok := reverseTypeDatabase[typ]; !ok { - // The type was not registered? Must be an embedded - // structure or something else. - return "", nil, false - } - } - // Extract the name from the object. - name := t.StateTypeName() - fields := t.StateFields() - assertValidType(name, fields) - return name, fields, true -} - -// Lookup looks up or registers the given object. -// -// The bool indicates whether this is an existing entry: false means the entry -// did not exist, and true means the entry did exist. If this bool is false and -// the returned typeEntry are nil, then the obj did not implement the Type -// interface. -func (tdb *typeEncodeDatabase) Lookup(typ reflect.Type) (*typeEntry, bool) { - te, ok := tdb.byType[typ] - if !ok { - // Lookup the type information. - name, fields, ok := lookupNameFields(typ) - if !ok { - // Empty structs may still be encoded, so let the - // caller decide what to do from here. - return nil, false - } - - // Register the new type. - tdb.lastID++ - te = &typeEntry{ - ID: tdb.lastID, - Type: wire.Type{ - Name: name, - Fields: fields, - }, - } - - // All done. - tdb.byType[typ] = te - return te, false - } - return te, true -} - -// Register adds a typeID entry. -func (tbd *typeDecodeDatabase) Register(typ *wire.Type) { - assertValidType(typ.Name, typ.Fields) - tbd.pending = append(tbd.pending, typ) -} - -// LookupName looks up the type name by ID. -func (tbd *typeDecodeDatabase) LookupName(id typeID) string { - if len(tbd.pending) < int(id) { - // This is likely an encoder error? - Failf("type ID %d not available", id) - } - return tbd.pending[id-1].Name -} - -// LookupType looks up the type by ID. -func (tbd *typeDecodeDatabase) LookupType(id typeID) reflect.Type { - name := tbd.LookupName(id) - typ, ok := globalTypeDatabase[name] - if !ok { - // If not available, see if it's primitive. - typ, ok = primitiveTypeDatabase[name] - if !ok && name == interfaceType { - // Matches the built-in interface type. - var i any - return reflect.TypeOf(&i).Elem() - } - if !ok { - // The type is perhaps not registered? - Failf("type name %q is not available", name) - } - return typ // Primitive type. - } - return typ // Registered type. -} - -// singleFieldOrder defines the field order for a single field. -var singleFieldOrder = []int{0} - -// Lookup looks up or registers the given object. -// -// First, the typeID is searched to see if this has already been appropriately -// reconciled. If no, then a reconciliation will take place that may result in a -// field ordering. If a nil reconciledTypeEntry is returned from this method, -// then the object does not support the Type interface. -// -// This method never returns nil. -func (tbd *typeDecodeDatabase) Lookup(id typeID, typ reflect.Type) *reconciledTypeEntry { - if len(tbd.byID) >= int(id) && tbd.byID[id-1] != nil { - // Already reconciled. - return tbd.byID[id-1] - } - // The ID has not been reconciled yet. That's fine. We need to make - // sure it aligns with the current provided object. - if len(tbd.pending) < int(id) { - // This id was never registered. Probably an encoder error? - Failf("typeDatabase does not contain id %d", id) - } - // Extract the pending info. - pending := tbd.pending[id-1] - // Grow the byID list. - if len(tbd.byID) < int(id) { - tbd.byID = append(tbd.byID, make([]*reconciledTypeEntry, int(id)-len(tbd.byID))...) - } - // Reconcile the type. - name, fields, ok := lookupNameFields(typ) - if !ok { - // Empty structs are decoded only when the type is nil. Since - // this isn't the case, we fail here. - Failf("unsupported type %q during decode; can't reconcile", pending.Name) - } - if name != pending.Name { - // Are these the same type? Print a helpful message as this may - // actually happen in practice if types change. - Failf("typeDatabase contains conflicting definitions for id %d: %s->%v (current) and %s->%v (existing)", - id, name, fields, pending.Name, pending.Fields) - } - rte := &reconciledTypeEntry{ - Type: wire.Type{ - Name: name, - Fields: fields, - }, - LocalType: typ, - } - // If there are zero or one fields, then we skip allocating the field - // slice. There is special handling for decoding in this case. If the - // field name does not match, it will be caught in the general purpose - // code below. - if len(fields) != len(pending.Fields) { - Failf("type %q contains different fields: %v (decode) and %v (encode)", - name, fields, pending.Fields) - } - if len(fields) == 0 { - tbd.byID[id-1] = rte // Save. - return rte - } - if len(fields) == 1 && fields[0] == pending.Fields[0] { - tbd.byID[id-1] = rte // Save. - rte.FieldOrder = singleFieldOrder - return rte - } - // For each field in the current object's information, match it to a - // field in the destination object. We know from the assertion above - // and the insertion on insertion to pending that neither field - // contains any duplicates. - fieldOrder := make([]int, len(fields)) - for i, name := range fields { - fieldOrder[i] = -1 // Sentinel. - // Is it an exact match? - if pending.Fields[i] == name { - fieldOrder[i] = i - continue - } - // Find the matching field. - for j, otherName := range pending.Fields { - if name == otherName { - fieldOrder[i] = j - break - } - } - if fieldOrder[i] == -1 { - // The type name matches but we are lacking some common fields. - Failf("type %q has mismatched fields: %v (decode) and %v (encode)", - name, fields, pending.Fields) - } - } - // The type has been reeconciled. - rte.FieldOrder = fieldOrder - tbd.byID[id-1] = rte - return rte -} - -// interfaceType defines all interfaces. -const interfaceType = "interface" - -// primitiveTypeDatabase is a set of fixed types. -var primitiveTypeDatabase = func() map[string]reflect.Type { - r := make(map[string]reflect.Type) - for _, t := range []reflect.Type{ - reflect.TypeOf(false), - reflect.TypeOf(int(0)), - reflect.TypeOf(int8(0)), - reflect.TypeOf(int16(0)), - reflect.TypeOf(int32(0)), - reflect.TypeOf(int64(0)), - reflect.TypeOf(uint(0)), - reflect.TypeOf(uintptr(0)), - reflect.TypeOf(uint8(0)), - reflect.TypeOf(uint16(0)), - reflect.TypeOf(uint32(0)), - reflect.TypeOf(uint64(0)), - reflect.TypeOf(""), - reflect.TypeOf(float32(0.0)), - reflect.TypeOf(float64(0.0)), - reflect.TypeOf(complex64(0.0)), - reflect.TypeOf(complex128(0.0)), - } { - r[t.Name()] = t - } - return r -}() - -// globalTypeDatabase is used for dispatching interfaces on decode. -var globalTypeDatabase = map[string]reflect.Type{} - -// reverseTypeDatabase is a reverse mapping. -var reverseTypeDatabase = map[reflect.Type]string{} - -// Release releases references to global type databases. -// Must only be called in contexts where they will definitely never be used, -// in order to save memory. -func Release() { - globalTypeDatabase = nil - reverseTypeDatabase = nil -} - -// Register registers a type. -// -// This must be called on init and only done once. -func Register(t Type) { - name := t.StateTypeName() - typ := reflect.TypeOf(t) - if raceEnabled { - assertValidType(name, t.StateFields()) - // Register must always be called on pointers. - if typ.Kind() != reflect.Ptr { - Failf("Register must be called on pointers") - } - } - typ = typ.Elem() - if raceEnabled { - if typ.Kind() == reflect.Struct { - // All registered structs must implement SaverLoader. We allow - // the registration is non-struct types with just the Type - // interface, but we need to call StateSave/StateLoad methods - // on aggregate types. - if _, ok := t.(SaverLoader); !ok { - Failf("struct %T does not implement SaverLoader", t) - } - } else { - // Non-structs must not have any fields. We don't support - // calling StateSave/StateLoad methods on any non-struct types. - // If custom behavior is required, these types should be - // wrapped in a structure of some kind. - if fields := t.StateFields(); len(fields) != 0 { - Failf("non-struct %T has non-zero fields %v", t, fields) - } - // We don't allow non-structs to implement StateSave/StateLoad - // methods, because they won't be called and it's confusing. - if _, ok := t.(SaverLoader); ok { - Failf("non-struct %T implements SaverLoader", t) - } - } - if _, ok := primitiveTypeDatabase[name]; ok { - Failf("conflicting primitiveTypeDatabase entry for %T: used by primitive", t) - } - if _, ok := globalTypeDatabase[name]; ok { - Failf("conflicting globalTypeDatabase entries for %T: name conflict", t) - } - if name == interfaceType { - Failf("conflicting name for %T: matches interfaceType", t) - } - reverseTypeDatabase[typ] = name - } - globalTypeDatabase[name] = typ -} diff --git a/vendor/gvisor.dev/gvisor/pkg/state/wire/wire.go b/vendor/gvisor.dev/gvisor/pkg/state/wire/wire.go deleted file mode 100644 index f89067acd2..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/state/wire/wire.go +++ /dev/null @@ -1,983 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package wire contains a few basic types that can be composed to serialize -// graph information for the state package. This package defines the wire -// protocol. -// -// Note that these types are careful about how they implement the relevant -// interfaces (either value receiver or pointer receiver), so that native-sized -// types, such as integers and simple pointers, can fit inside the interface -// object. -// -// This package also uses panic as control flow, so called should be careful to -// wrap calls in appropriate handlers. -// -// Testing for this package is driven by the state test package. -package wire - -import ( - "fmt" - "io" - "math" - - "gvisor.dev/gvisor/pkg/gohacks" -) - -// Reader bundles an io.Reader with a buffer used to implement readByte -// efficiently. -type Reader struct { - io.Reader - - buf [1]byte -} - -// readByte reads a single byte from r.Reader without allocation. It panics on -// error. -func (r *Reader) readByte() byte { - n, err := r.Read(r.buf[:]) - if n != 1 { - panic(err) - } - return r.buf[0] -} - -// Writer bundles an io.Writer with a buffer used to implement writeByte -// efficiently. -type Writer struct { - io.Writer - - // buf is used by Uint as a scratch buffer. - buf [10]byte -} - -// readFull is a utility. The equivalent is not needed for Write, but the API -// contract dictates that it must always complete all bytes given or return an -// error. -func readFull(r *Reader, p []byte) { - for done := 0; done < len(p); { - n, err := r.Read(p[done:]) - done += n - if n == 0 && err != nil { - panic(err) - } - } -} - -// Object is a generic object. -type Object interface { - // save saves the given object. - // - // Panic is used for error control flow. - save(*Writer) - - // load loads a new object of the given type. - // - // Panic is used for error control flow. - load(*Reader) Object -} - -// Bool is a boolean. -type Bool bool - -// loadBool loads an object of type Bool. -func loadBool(r *Reader) Bool { - b := loadUint(r) - return Bool(b == 1) -} - -// save implements Object.save. -func (b Bool) save(w *Writer) { - var v Uint - if b { - v = 1 - } else { - v = 0 - } - v.save(w) -} - -// load implements Object.load. -func (Bool) load(r *Reader) Object { return loadBool(r) } - -// Int is a signed integer. -// -// This uses varint encoding. -type Int int64 - -// loadInt loads an object of type Int. -func loadInt(r *Reader) Int { - u := loadUint(r) - x := Int(u >> 1) - if u&1 != 0 { - x = ^x - } - return x -} - -// save implements Object.save. -func (i Int) save(w *Writer) { - u := Uint(i) << 1 - if i < 0 { - u = ^u - } - u.save(w) -} - -// load implements Object.load. -func (Int) load(r *Reader) Object { return loadInt(r) } - -// Uint is an unsigned integer. -type Uint uint64 - -// loadUint loads an object of type Uint. -func loadUint(r *Reader) Uint { - var ( - u Uint - s uint - ) - for i := 0; i <= 9; i++ { - b := r.readByte() - if b < 0x80 { - if i == 9 && b > 1 { - panic("overflow") - } - u |= Uint(b) << s - return u - } - u |= Uint(b&0x7f) << s - s += 7 - } - panic("unreachable") -} - -// save implements Object.save. -func (u Uint) save(w *Writer) { - i := 0 - for u >= 0x80 { - w.buf[i] = byte(u) | 0x80 - i++ - u >>= 7 - } - w.buf[i] = byte(u) - if _, err := w.Write(w.buf[:i+1]); err != nil { - panic(err) - } -} - -// load implements Object.load. -func (Uint) load(r *Reader) Object { return loadUint(r) } - -// Float32 is a 32-bit floating point number. -type Float32 float32 - -// loadFloat32 loads an object of type Float32. -func loadFloat32(r *Reader) Float32 { - n := loadUint(r) - return Float32(math.Float32frombits(uint32(n))) -} - -// save implements Object.save. -func (f Float32) save(w *Writer) { - n := Uint(math.Float32bits(float32(f))) - n.save(w) -} - -// load implements Object.load. -func (Float32) load(r *Reader) Object { return loadFloat32(r) } - -// Float64 is a 64-bit floating point number. -type Float64 float64 - -// loadFloat64 loads an object of type Float64. -func loadFloat64(r *Reader) Float64 { - n := loadUint(r) - return Float64(math.Float64frombits(uint64(n))) -} - -// save implements Object.save. -func (f Float64) save(w *Writer) { - n := Uint(math.Float64bits(float64(f))) - n.save(w) -} - -// load implements Object.load. -func (Float64) load(r *Reader) Object { return loadFloat64(r) } - -// Complex64 is a 64-bit complex number. -type Complex64 complex128 - -// loadComplex64 loads an object of type Complex64. -func loadComplex64(r *Reader) Complex64 { - re := loadFloat32(r) - im := loadFloat32(r) - return Complex64(complex(float32(re), float32(im))) -} - -// save implements Object.save. -func (c *Complex64) save(w *Writer) { - re := Float32(real(*c)) - im := Float32(imag(*c)) - re.save(w) - im.save(w) -} - -// load implements Object.load. -func (*Complex64) load(r *Reader) Object { - c := loadComplex64(r) - return &c -} - -// Complex128 is a 128-bit complex number. -type Complex128 complex128 - -// loadComplex128 loads an object of type Complex128. -func loadComplex128(r *Reader) Complex128 { - re := loadFloat64(r) - im := loadFloat64(r) - return Complex128(complex(float64(re), float64(im))) -} - -// save implements Object.save. -func (c *Complex128) save(w *Writer) { - re := Float64(real(*c)) - im := Float64(imag(*c)) - re.save(w) - im.save(w) -} - -// load implements Object.load. -func (*Complex128) load(r *Reader) Object { - c := loadComplex128(r) - return &c -} - -// String is a string. -type String string - -// loadString loads an object of type String. -func loadString(r *Reader) String { - l := loadUint(r) - p := make([]byte, l) - readFull(r, p) - return String(gohacks.StringFromImmutableBytes(p)) -} - -// save implements Object.save. -func (s *String) save(w *Writer) { - l := Uint(len(*s)) - l.save(w) - p := gohacks.ImmutableBytesFromString(string(*s)) - _, err := w.Write(p) // Must write all bytes. - if err != nil { - panic(err) - } -} - -// load implements Object.load. -func (*String) load(r *Reader) Object { - s := loadString(r) - return &s -} - -// Dot is a kind of reference: one of Index and FieldName. -type Dot interface { - isDot() -} - -// Index is a reference resolution. -type Index uint32 - -func (Index) isDot() {} - -// FieldName is a reference resolution. -type FieldName string - -func (*FieldName) isDot() {} - -// Ref is a reference to an object. -type Ref struct { - // Root is the root object. - Root Uint - - // Dots is the set of traversals required from the Root object above. - // Note that this will be stored in reverse order for efficiency. - Dots []Dot - - // Type is the base type for the root object. This is non-nil iff Dots - // is non-zero length (that is, this is a complex reference). This is - // not *strictly* necessary, but can be used to simplify decoding. - Type TypeSpec -} - -// loadRef loads an object of type Ref (abstract). -func loadRef(r *Reader) Ref { - ref := Ref{ - Root: loadUint(r), - } - l := loadUint(r) - ref.Dots = make([]Dot, l) - for i := 0; i < int(l); i++ { - // Disambiguate between an Index (non-negative) and a field - // name (negative). This does some space and avoids a dedicate - // loadDot function. See Ref.save for the other side. - d := loadInt(r) - if d >= 0 { - ref.Dots[i] = Index(d) - continue - } - p := make([]byte, -d) - readFull(r, p) - fieldName := FieldName(gohacks.StringFromImmutableBytes(p)) - ref.Dots[i] = &fieldName - } - if l != 0 { - // Only if dots is non-zero. - ref.Type = loadTypeSpec(r) - } - return ref -} - -// save implements Object.save. -func (r *Ref) save(w *Writer) { - r.Root.save(w) - l := Uint(len(r.Dots)) - l.save(w) - for _, d := range r.Dots { - // See LoadRef. We use non-negative numbers to encode Index - // objects and negative numbers to encode field lengths. - switch x := d.(type) { - case Index: - i := Int(x) - i.save(w) - case *FieldName: - d := Int(-len(*x)) - d.save(w) - p := gohacks.ImmutableBytesFromString(string(*x)) - if _, err := w.Write(p); err != nil { - panic(err) - } - default: - panic("unknown dot implementation") - } - } - if l != 0 { - // See above. - saveTypeSpec(w, r.Type) - } -} - -// load implements Object.load. -func (*Ref) load(r *Reader) Object { - ref := loadRef(r) - return &ref -} - -// Nil is a primitive zero value of any type. -type Nil struct{} - -// loadNil loads an object of type Nil. -func loadNil(r *Reader) Nil { - return Nil{} -} - -// save implements Object.save. -func (Nil) save(w *Writer) {} - -// load implements Object.load. -func (Nil) load(r *Reader) Object { return loadNil(r) } - -// Slice is a slice value. -type Slice struct { - Length Uint - Capacity Uint - Ref Ref -} - -// loadSlice loads an object of type Slice. -func loadSlice(r *Reader) Slice { - return Slice{ - Length: loadUint(r), - Capacity: loadUint(r), - Ref: loadRef(r), - } -} - -// save implements Object.save. -func (s *Slice) save(w *Writer) { - s.Length.save(w) - s.Capacity.save(w) - s.Ref.save(w) -} - -// load implements Object.load. -func (*Slice) load(r *Reader) Object { - s := loadSlice(r) - return &s -} - -// Array is an array value. -type Array struct { - Contents []Object -} - -// loadArray loads an object of type Array. -func loadArray(r *Reader) Array { - l := loadUint(r) - if l == 0 { - // Note that there isn't a single object available to encode - // the type of, so we need this additional branch. - return Array{} - } - // All the objects here have the same type, so use dynamic dispatch - // only once. All other objects will automatically take the same type - // as the first object. - contents := make([]Object, l) - v := Load(r) - contents[0] = v - for i := 1; i < int(l); i++ { - contents[i] = v.load(r) - } - return Array{ - Contents: contents, - } -} - -// save implements Object.save. -func (a *Array) save(w *Writer) { - l := Uint(len(a.Contents)) - l.save(w) - if l == 0 { - // See LoadArray. - return - } - // See above. - Save(w, a.Contents[0]) - for i := 1; i < int(l); i++ { - a.Contents[i].save(w) - } -} - -// load implements Object.load. -func (*Array) load(r *Reader) Object { - a := loadArray(r) - return &a -} - -// Map is a map value. -type Map struct { - Keys []Object - Values []Object -} - -// loadMap loads an object of type Map. -func loadMap(r *Reader) Map { - l := loadUint(r) - if l == 0 { - // See LoadArray. - return Map{} - } - // See type dispatch notes in Array. - keys := make([]Object, l) - values := make([]Object, l) - k := Load(r) - v := Load(r) - keys[0] = k - values[0] = v - for i := 1; i < int(l); i++ { - keys[i] = k.load(r) - values[i] = v.load(r) - } - return Map{ - Keys: keys, - Values: values, - } -} - -// save implements Object.save. -func (m *Map) save(w *Writer) { - l := Uint(len(m.Keys)) - if int(l) != len(m.Values) { - panic(fmt.Sprintf("mismatched keys (%d) Aand values (%d)", len(m.Keys), len(m.Values))) - } - l.save(w) - if l == 0 { - // See LoadArray. - return - } - // See above. - Save(w, m.Keys[0]) - Save(w, m.Values[0]) - for i := 1; i < int(l); i++ { - m.Keys[i].save(w) - m.Values[i].save(w) - } -} - -// load implements Object.load. -func (*Map) load(r *Reader) Object { - m := loadMap(r) - return &m -} - -// TypeSpec is a type dereference. -type TypeSpec interface { - isTypeSpec() -} - -// TypeID is a concrete type ID. -type TypeID Uint - -func (TypeID) isTypeSpec() {} - -// TypeSpecPointer is a pointer type. -type TypeSpecPointer struct { - Type TypeSpec -} - -func (*TypeSpecPointer) isTypeSpec() {} - -// TypeSpecArray is an array type. -type TypeSpecArray struct { - Count Uint - Type TypeSpec -} - -func (*TypeSpecArray) isTypeSpec() {} - -// TypeSpecSlice is a slice type. -type TypeSpecSlice struct { - Type TypeSpec -} - -func (*TypeSpecSlice) isTypeSpec() {} - -// TypeSpecMap is a map type. -type TypeSpecMap struct { - Key TypeSpec - Value TypeSpec -} - -func (*TypeSpecMap) isTypeSpec() {} - -// TypeSpecNil is an empty type. -type TypeSpecNil struct{} - -func (TypeSpecNil) isTypeSpec() {} - -// TypeSpec types. -// -// These use a distinct encoding on the wire, as they are used only in the -// interface object. They are decoded through the dedicated loadTypeSpec and -// saveTypeSpec functions. -const ( - typeSpecTypeID Uint = iota - typeSpecPointer - typeSpecArray - typeSpecSlice - typeSpecMap - typeSpecNil -) - -// loadTypeSpec loads TypeSpec values. -func loadTypeSpec(r *Reader) TypeSpec { - switch hdr := loadUint(r); hdr { - case typeSpecTypeID: - return TypeID(loadUint(r)) - case typeSpecPointer: - return &TypeSpecPointer{ - Type: loadTypeSpec(r), - } - case typeSpecArray: - return &TypeSpecArray{ - Count: loadUint(r), - Type: loadTypeSpec(r), - } - case typeSpecSlice: - return &TypeSpecSlice{ - Type: loadTypeSpec(r), - } - case typeSpecMap: - return &TypeSpecMap{ - Key: loadTypeSpec(r), - Value: loadTypeSpec(r), - } - case typeSpecNil: - return TypeSpecNil{} - default: - // This is not a valid stream? - panic(fmt.Errorf("unknown header: %d", hdr)) - } -} - -// saveTypeSpec saves TypeSpec values. -func saveTypeSpec(w *Writer, t TypeSpec) { - switch x := t.(type) { - case TypeID: - typeSpecTypeID.save(w) - Uint(x).save(w) - case *TypeSpecPointer: - typeSpecPointer.save(w) - saveTypeSpec(w, x.Type) - case *TypeSpecArray: - typeSpecArray.save(w) - x.Count.save(w) - saveTypeSpec(w, x.Type) - case *TypeSpecSlice: - typeSpecSlice.save(w) - saveTypeSpec(w, x.Type) - case *TypeSpecMap: - typeSpecMap.save(w) - saveTypeSpec(w, x.Key) - saveTypeSpec(w, x.Value) - case TypeSpecNil: - typeSpecNil.save(w) - default: - // This should not happen? - panic(fmt.Errorf("unknown type %T", t)) - } -} - -// Interface is an interface value. -type Interface struct { - Type TypeSpec - Value Object -} - -// loadInterface loads an object of type Interface. -func loadInterface(r *Reader) Interface { - return Interface{ - Type: loadTypeSpec(r), - Value: Load(r), - } -} - -// save implements Object.save. -func (i *Interface) save(w *Writer) { - saveTypeSpec(w, i.Type) - Save(w, i.Value) -} - -// load implements Object.load. -func (*Interface) load(r *Reader) Object { - i := loadInterface(r) - return &i -} - -// Type is type information. -type Type struct { - Name string - Fields []string -} - -// loadType loads an object of type Type. -func loadType(r *Reader) Type { - name := string(loadString(r)) - l := loadUint(r) - fields := make([]string, l) - for i := 0; i < int(l); i++ { - fields[i] = string(loadString(r)) - } - return Type{ - Name: name, - Fields: fields, - } -} - -// save implements Object.save. -func (t *Type) save(w *Writer) { - s := String(t.Name) - s.save(w) - l := Uint(len(t.Fields)) - l.save(w) - for i := 0; i < int(l); i++ { - s := String(t.Fields[i]) - s.save(w) - } -} - -// load implements Object.load. -func (*Type) load(r *Reader) Object { - t := loadType(r) - return &t -} - -// multipleObjects is a special type for serializing multiple objects. -type multipleObjects []Object - -// loadMultipleObjects loads a series of objects. -func loadMultipleObjects(r *Reader) multipleObjects { - l := loadUint(r) - m := make(multipleObjects, l) - for i := 0; i < int(l); i++ { - m[i] = Load(r) - } - return m -} - -// save implements Object.save. -func (m *multipleObjects) save(w *Writer) { - l := Uint(len(*m)) - l.save(w) - for i := 0; i < int(l); i++ { - Save(w, (*m)[i]) - } -} - -// load implements Object.load. -func (*multipleObjects) load(r *Reader) Object { - m := loadMultipleObjects(r) - return &m -} - -// noObjects represents no objects. -type noObjects struct{} - -// loadNoObjects loads a sentinel. -func loadNoObjects(r *Reader) noObjects { return noObjects{} } - -// save implements Object.save. -func (noObjects) save(w *Writer) {} - -// load implements Object.load. -func (noObjects) load(r *Reader) Object { return loadNoObjects(r) } - -// Struct is a basic composite value. -type Struct struct { - TypeID TypeID - fields Object // Optionally noObjects or *multipleObjects. -} - -// Field returns a pointer to the given field slot. -// -// This must be called after Alloc. -func (s *Struct) Field(i int) *Object { - if fields, ok := s.fields.(*multipleObjects); ok { - return &((*fields)[i]) - } - if _, ok := s.fields.(noObjects); ok { - // Alloc may be optionally called; can't call twice. - panic("Field called inappropriately, wrong Alloc?") - } - return &s.fields -} - -// Alloc allocates the given number of fields. -// -// This must be called before Add and Save. -// -// Precondition: slots must be positive. -func (s *Struct) Alloc(slots int) { - switch { - case slots == 0: - s.fields = noObjects{} - case slots == 1: - // Leave it alone. - case slots > 1: - fields := make(multipleObjects, slots) - s.fields = &fields - default: - // Violates precondition. - panic(fmt.Sprintf("Alloc called with negative slots %d?", slots)) - } -} - -// Fields returns the number of fields. -func (s *Struct) Fields() int { - switch x := s.fields.(type) { - case *multipleObjects: - return len(*x) - case noObjects: - return 0 - default: - return 1 - } -} - -// loadStruct loads an object of type Struct. -func loadStruct(r *Reader) Struct { - return Struct{ - TypeID: TypeID(loadUint(r)), - fields: Load(r), - } -} - -// save implements Object.save. -// -// Precondition: Alloc must have been called, and the fields all filled in -// appropriately. See Alloc and Add for more details. -func (s *Struct) save(w *Writer) { - Uint(s.TypeID).save(w) - Save(w, s.fields) -} - -// load implements Object.load. -func (*Struct) load(r *Reader) Object { - s := loadStruct(r) - return &s -} - -// Object types. -// -// N.B. Be careful about changing the order or introducing new elements in the -// middle here. This is part of the wire format and shouldn't change. -const ( - typeBool Uint = iota - typeInt - typeUint - typeFloat32 - typeFloat64 - typeNil - typeRef - typeString - typeSlice - typeArray - typeMap - typeStruct - typeNoObjects - typeMultipleObjects - typeInterface - typeComplex64 - typeComplex128 - typeType -) - -// Save saves the given object. -// -// +checkescape all -// -// N.B. This function will panic on error. -func Save(w *Writer, obj Object) { - switch x := obj.(type) { - case Bool: - typeBool.save(w) - x.save(w) - case Int: - typeInt.save(w) - x.save(w) - case Uint: - typeUint.save(w) - x.save(w) - case Float32: - typeFloat32.save(w) - x.save(w) - case Float64: - typeFloat64.save(w) - x.save(w) - case Nil: - typeNil.save(w) - x.save(w) - case *Ref: - typeRef.save(w) - x.save(w) - case *String: - typeString.save(w) - x.save(w) - case *Slice: - typeSlice.save(w) - x.save(w) - case *Array: - typeArray.save(w) - x.save(w) - case *Map: - typeMap.save(w) - x.save(w) - case *Struct: - typeStruct.save(w) - x.save(w) - case noObjects: - typeNoObjects.save(w) - x.save(w) - case *multipleObjects: - typeMultipleObjects.save(w) - x.save(w) - case *Interface: - typeInterface.save(w) - x.save(w) - case *Type: - typeType.save(w) - x.save(w) - case *Complex64: - typeComplex64.save(w) - x.save(w) - case *Complex128: - typeComplex128.save(w) - x.save(w) - default: - panic(fmt.Errorf("unknown type: %#v", obj)) - } -} - -// Load loads a new object. -// -// +checkescape all -// -// N.B. This function will panic on error. -func Load(r *Reader) Object { - switch hdr := loadUint(r); hdr { - case typeBool: - return loadBool(r) - case typeInt: - return loadInt(r) - case typeUint: - return loadUint(r) - case typeFloat32: - return loadFloat32(r) - case typeFloat64: - return loadFloat64(r) - case typeNil: - return loadNil(r) - case typeRef: - return ((*Ref)(nil)).load(r) // Escapes. - case typeString: - return ((*String)(nil)).load(r) // Escapes. - case typeSlice: - return ((*Slice)(nil)).load(r) // Escapes. - case typeArray: - return ((*Array)(nil)).load(r) // Escapes. - case typeMap: - return ((*Map)(nil)).load(r) // Escapes. - case typeStruct: - return ((*Struct)(nil)).load(r) // Escapes. - case typeNoObjects: // Special for struct. - return loadNoObjects(r) - case typeMultipleObjects: // Special for struct. - return ((*multipleObjects)(nil)).load(r) // Escapes. - case typeInterface: - return ((*Interface)(nil)).load(r) // Escapes. - case typeComplex64: - return ((*Complex64)(nil)).load(r) // Escapes. - case typeComplex128: - return ((*Complex128)(nil)).load(r) // Escapes. - case typeType: - return ((*Type)(nil)).load(r) // Escapes. - default: - // This is not a valid stream? - panic(fmt.Errorf("unknown header: %d", hdr)) - } -} - -// LoadUint loads a single unsigned integer. -// -// N.B. This function will panic on error. -func LoadUint(r *Reader) uint64 { - return uint64(loadUint(r)) -} - -// SaveUint saves a single unsigned integer. -// -// N.B. This function will panic on error. -func SaveUint(w *Writer, v uint64) { - Uint(v).save(w) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/aliases.go b/vendor/gvisor.dev/gvisor/pkg/sync/aliases.go deleted file mode 100644 index ccbac0a647..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/aliases.go +++ /dev/null @@ -1,51 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package sync - -import ( - "sync" -) - -// Aliases of standard library types. -type ( - // Cond is an alias of sync.Cond. - Cond = sync.Cond - - // Locker is an alias of sync.Locker. - Locker = sync.Locker - - // Once is an alias of sync.Once. - Once = sync.Once - - // Pool is an alias of sync.Pool. - Pool = sync.Pool - - // WaitGroup is an alias of sync.WaitGroup. - WaitGroup = sync.WaitGroup - - // Map is an alias of sync.Map. - Map = sync.Map -) - -// NewCond is a wrapper around sync.NewCond. -func NewCond(l Locker) *Cond { - return sync.NewCond(l) -} - -// OnceFunc is a wrapper around sync.OnceFunc. -func OnceFunc(f func()) func() { - return sync.OnceFunc(f) -} - -// OnceValue is a wrapper around sync.OnceValue. -func OnceValue[T any](f func() T) func() T { - return sync.OnceValue(f) -} - -// OnceValues is a wrapper around sync.OnceValues. -func OnceValues[T1, T2 any](f func() (T1, T2)) func() (T1, T2) { - return sync.OnceValues(f) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/checklocks_off_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/sync/checklocks_off_unsafe.go deleted file mode 100644 index 87c56dd121..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/checklocks_off_unsafe.go +++ /dev/null @@ -1,19 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !checklocks -// +build !checklocks - -package sync - -import ( - "unsafe" -) - -func noteLock(l unsafe.Pointer) { -} - -func noteUnlock(l unsafe.Pointer) { -} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/checklocks_on_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/sync/checklocks_on_unsafe.go deleted file mode 100644 index 16a5d3fbab..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/checklocks_on_unsafe.go +++ /dev/null @@ -1,109 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build checklocks -// +build checklocks - -package sync - -import ( - "fmt" - "strings" - "sync" - "unsafe" - - "gvisor.dev/gvisor/pkg/goid" -) - -// gLocks contains metadata about the locks held by a goroutine. -type gLocks struct { - locksHeld []unsafe.Pointer -} - -// map[goid int]*gLocks -// -// Each key may only be written by the G with the goid it refers to. -// -// Note that entries are not evicted when a G exit, causing unbounded growth -// with new G creation / destruction. If this proves problematic, entries could -// be evicted when no locks are held at the expense of more allocations when -// taking top-level locks. -var locksHeld sync.Map - -func getGLocks() *gLocks { - id := goid.Get() - - var locks *gLocks - if l, ok := locksHeld.Load(id); ok { - locks = l.(*gLocks) - } else { - locks = &gLocks{ - // Initialize space for a few locks. - locksHeld: make([]unsafe.Pointer, 0, 8), - } - locksHeld.Store(id, locks) - } - - return locks -} - -func noteLock(l unsafe.Pointer) { - locks := getGLocks() - - for _, lock := range locks.locksHeld { - if lock == l { - panic(fmt.Sprintf("Deadlock on goroutine %d! Double lock of %p: %+v", goid.Get(), l, locks)) - } - } - - // Commit only after checking for panic conditions so that this lock - // isn't on the list if the above panic is recovered. - locks.locksHeld = append(locks.locksHeld, l) -} - -func noteUnlock(l unsafe.Pointer) { - locks := getGLocks() - - if len(locks.locksHeld) == 0 { - panic(fmt.Sprintf("Unlock of %p on goroutine %d without any locks held! All locks:\n%s", l, goid.Get(), dumpLocks())) - } - - // Search backwards since callers are most likely to unlock in LIFO order. - length := len(locks.locksHeld) - for i := length - 1; i >= 0; i-- { - if l == locks.locksHeld[i] { - copy(locks.locksHeld[i:length-1], locks.locksHeld[i+1:length]) - // Clear last entry to ensure addr can be GC'd. - locks.locksHeld[length-1] = nil - locks.locksHeld = locks.locksHeld[:length-1] - return - } - } - - panic(fmt.Sprintf("Unlock of %p on goroutine %d without matching lock! All locks:\n%s", l, goid.Get(), dumpLocks())) -} - -func dumpLocks() string { - var s strings.Builder - locksHeld.Range(func(key, value any) bool { - goid := key.(int64) - locks := value.(*gLocks) - - // N.B. accessing gLocks of another G is fundamentally racy. - - fmt.Fprintf(&s, "goroutine %d:\n", goid) - if len(locks.locksHeld) == 0 { - fmt.Fprintf(&s, "\t\n") - } - for _, lock := range locks.locksHeld { - fmt.Fprintf(&s, "\t%p\n", lock) - } - fmt.Fprintf(&s, "\n") - - return true - }) - - return s.String() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/fence.go b/vendor/gvisor.dev/gvisor/pkg/sync/fence.go deleted file mode 100644 index 6706676a52..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/fence.go +++ /dev/null @@ -1,19 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package sync - -// MemoryFenceReads ensures that all preceding memory loads happen before -// following memory loads. -func MemoryFenceReads() diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/fence_amd64.s b/vendor/gvisor.dev/gvisor/pkg/sync/fence_amd64.s deleted file mode 100644 index 87766f1d3a..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/fence_amd64.s +++ /dev/null @@ -1,26 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build amd64 -// +build amd64 - -#include "textflag.h" - -// func MemoryFenceReads() -TEXT ·MemoryFenceReads(SB),NOSPLIT|NOFRAME,$0-0 - // No memory fence is required on x86. However, a compiler fence is - // required to prevent the compiler from reordering memory accesses. The Go - // compiler will not reorder memory accesses around a call to an assembly - // function; compare runtime.publicationBarrier. - RET diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/fence_arm64.s b/vendor/gvisor.dev/gvisor/pkg/sync/fence_arm64.s deleted file mode 100644 index f4f9ce9de6..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/fence_arm64.s +++ /dev/null @@ -1,23 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build arm64 -// +build arm64 - -#include "textflag.h" - -// func MemoryFenceReads() -TEXT ·MemoryFenceReads(SB),NOSPLIT|NOFRAME,$0-0 - DMB $0x9 // ISHLD - RET diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/gate_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/sync/gate_unsafe.go deleted file mode 100644 index 0f3b58dc7e..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/gate_unsafe.go +++ /dev/null @@ -1,151 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package sync - -import ( - "fmt" - "math" - "sync/atomic" - "unsafe" - - "gvisor.dev/gvisor/pkg/gohacks" -) - -// Gate is a synchronization primitive that allows concurrent goroutines to -// "enter" it as long as it hasn't been closed yet. Once it's been closed, -// goroutines cannot enter it anymore, but are allowed to leave, and the closer -// will be informed when all goroutines have left. -// -// Gate is similar to WaitGroup: -// -// - Gate.Enter() is analogous to WaitGroup.Add(1), but may be called even if -// the Gate counter is 0 and fails if Gate.Close() has been called. -// -// - Gate.Leave() is equivalent to WaitGroup.Done(). -// -// - Gate.Close() is analogous to WaitGroup.Wait(), but also causes future -// -// calls to Gate.Enter() to fail and may only be called once, from a single -// goroutine. -// -// This is useful, for example, in cases when a goroutine is trying to clean up -// an object for which multiple goroutines have pointers. In such a case, users -// would be required to enter and leave the Gate, and the cleaner would wait -// until all users are gone (and no new ones are allowed) before proceeding. -// -// Users: -// -// if !g.Enter() { -// // Gate is closed, we can't use the object. -// return -// } -// -// // Do something with object. -// [...] -// -// g.Leave() -// -// Closer: -// -// // Prevent new users from using the object, and wait for the existing -// // ones to complete. -// g.Close() -// -// // Clean up the object. -// [...] -type Gate struct { - userCount int32 - closingG uintptr -} - -const preparingG = 1 - -// Enter tries to enter the gate. It will succeed if it hasn't been closed yet, -// in which case the caller must eventually call Leave(). -// -// This function is thread-safe. -func (g *Gate) Enter() bool { - if atomic.AddInt32(&g.userCount, 1) > 0 { - return true - } - g.leaveAfterFailedEnter() - return false -} - -// leaveAfterFailedEnter is identical to Leave, but is marked noinline to -// prevent it from being inlined into Enter, since as of this writing inlining -// Leave into Enter prevents Enter from being inlined into its callers. -// -//go:noinline -func (g *Gate) leaveAfterFailedEnter() { - if atomic.AddInt32(&g.userCount, -1) == math.MinInt32 { - g.leaveClosed() - } -} - -// Leave leaves the gate. This must only be called after a successful call to -// Enter(). If the gate has been closed and this is the last one inside the -// gate, it will notify the closer that the gate is done. -// -// This function is thread-safe. -func (g *Gate) Leave() { - if atomic.AddInt32(&g.userCount, -1) == math.MinInt32 { - g.leaveClosed() - } -} - -func (g *Gate) leaveClosed() { - if atomic.LoadUintptr(&g.closingG) == 0 { - return - } - if g := atomic.SwapUintptr(&g.closingG, 0); g > preparingG { - goready(g, 0) - } -} - -// Close closes the gate, causing future calls to Enter to fail, and waits -// until all goroutines that are currently inside the gate leave before -// returning. -// -// Only one goroutine can call this function. -func (g *Gate) Close() { - if atomic.LoadInt32(&g.userCount) == math.MinInt32 { - // The gate is already closed, with no goroutines inside. For legacy - // reasons, we have to allow Close to be called again in this case. - return - } - if v := atomic.AddInt32(&g.userCount, math.MinInt32); v == math.MinInt32 { - // userCount was already 0. - return - } else if v >= 0 { - panic("concurrent Close of sync.Gate") - } - - if g := atomic.SwapUintptr(&g.closingG, preparingG); g != 0 { - panic(fmt.Sprintf("invalid sync.Gate.closingG during Close: %#x", g)) - } - if atomic.LoadInt32(&g.userCount) == math.MinInt32 { - // The last call to Leave arrived while we were setting up closingG. - return - } - // WaitReasonSemacquire/TraceBlockSync are consistent with WaitGroup. - gopark(gateCommit, gohacks.Noescape(unsafe.Pointer(&g.closingG)), WaitReasonSemacquire, TraceBlockSync, 0) -} - -//go:norace -//go:nosplit -func gateCommit(g uintptr, closingG unsafe.Pointer) bool { - return RaceUncheckedAtomicCompareAndSwapUintptr((*uintptr)(closingG), preparingG, g) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/goyield_go113_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/sync/goyield_go113_unsafe.go deleted file mode 100644 index c4b03e9aa7..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/goyield_go113_unsafe.go +++ /dev/null @@ -1,18 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build go1.13 && !go1.14 -// +build go1.13,!go1.14 - -package sync - -import ( - "runtime" -) - -func goyield() { - // goyield is not available until Go 1.14. - runtime.Gosched() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/goyield_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/sync/goyield_unsafe.go deleted file mode 100644 index 757edbaba5..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/goyield_unsafe.go +++ /dev/null @@ -1,20 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build go1.14 -// +build go1.14 - -// //go:linkname directives type-checked by checklinkname. Any other -// non-linkname assumptions outside the Go 1 compatibility guarantee should -// have an accompanied vet check or version guard build tag. - -package sync - -import ( - _ "unsafe" // for go:linkname -) - -//go:linkname goyield runtime.goyield -func goyield() diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go deleted file mode 100644 index 5e4ec51c13..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go +++ /dev/null @@ -1,445 +0,0 @@ -package locking - -import ( - "sync/atomic" - "unsafe" - - "gvisor.dev/gvisor/pkg/gohacks" - "gvisor.dev/gvisor/pkg/sync" -) - -const ( - // ShardOrder is an optional parameter specifying the base-2 log of the - // number of shards per AtomicPtrMap. Higher values of ShardOrder reduce - // unnecessary synchronization between unrelated concurrent operations, - // improving performance for write-heavy workloads, but increase memory - // usage for small maps. - ancestorsShardOrder = 0 -) - -// Hasher is an optional type parameter. If Hasher is provided, it must define -// the Init and Hash methods. One Hasher will be shared by all AtomicPtrMaps. -type ancestorsHasher struct { - ancestorsdefaultHasher -} - -// defaultHasher is the default Hasher. This indirection exists because -// defaultHasher must exist even if a custom Hasher is provided, to prevent the -// Go compiler from complaining about defaultHasher's unused imports. -type ancestorsdefaultHasher struct { - fn func(unsafe.Pointer, uintptr) uintptr - seed uintptr -} - -// Init initializes the Hasher. -func (h *ancestorsdefaultHasher) Init() { - h.fn = sync.MapKeyHasher(map[*MutexClass]*string(nil)) - h.seed = sync.RandUintptr() -} - -// Hash returns the hash value for the given Key. -func (h *ancestorsdefaultHasher) Hash(key *MutexClass) uintptr { - return h.fn(gohacks.Noescape(unsafe.Pointer(&key)), h.seed) -} - -var ancestorshasher ancestorsHasher - -func init() { - ancestorshasher.Init() -} - -// An AtomicPtrMap maps Keys to non-nil pointers to Values. AtomicPtrMap are -// safe for concurrent use from multiple goroutines without additional -// synchronization. -// -// The zero value of AtomicPtrMap is empty (maps all Keys to nil) and ready for -// use. AtomicPtrMaps must not be copied after first use. -// -// sync.Map may be faster than AtomicPtrMap if most operations on the map are -// concurrent writes to a fixed set of keys. AtomicPtrMap is usually faster in -// other circumstances. -type ancestorsAtomicPtrMap struct { - shards [1 << ancestorsShardOrder]ancestorsapmShard -} - -func (m *ancestorsAtomicPtrMap) shard(hash uintptr) *ancestorsapmShard { - // Go defines right shifts >= width of shifted unsigned operand as 0, so - // this is correct even if ShardOrder is 0 (although nogo complains because - // nogo is dumb). - const indexLSB = unsafe.Sizeof(uintptr(0))*8 - ancestorsShardOrder - index := hash >> indexLSB - return (*ancestorsapmShard)(unsafe.Pointer(uintptr(unsafe.Pointer(&m.shards)) + (index * unsafe.Sizeof(ancestorsapmShard{})))) -} - -type ancestorsapmShard struct { - ancestorsapmShardMutationData - _ [ancestorsapmShardMutationDataPadding]byte - ancestorsapmShardLookupData - _ [ancestorsapmShardLookupDataPadding]byte -} - -type ancestorsapmShardMutationData struct { - dirtyMu sync.Mutex // serializes slot transitions out of empty - dirty uintptr // # slots with val != nil - count uintptr // # slots with val != nil and val != tombstone() - rehashMu sync.Mutex // serializes rehashing -} - -type ancestorsapmShardLookupData struct { - seq sync.SeqCount // allows atomic reads of slots+mask - slots unsafe.Pointer // [mask+1]slot or nil; protected by rehashMu/seq - mask uintptr // always (a power of 2) - 1; protected by rehashMu/seq -} - -const ( - ancestorscacheLineBytes = 64 - // Cache line padding is enabled if sharding is. - ancestorsapmEnablePadding = (ancestorsShardOrder + 63) >> 6 // 0 if ShardOrder == 0, 1 otherwise - // The -1 and +1 below are required to ensure that if unsafe.Sizeof(T) % - // cacheLineBytes == 0, then padding is 0 (rather than cacheLineBytes). - ancestorsapmShardMutationDataRequiredPadding = ancestorscacheLineBytes - (((unsafe.Sizeof(ancestorsapmShardMutationData{}) - 1) % ancestorscacheLineBytes) + 1) - ancestorsapmShardMutationDataPadding = ancestorsapmEnablePadding * ancestorsapmShardMutationDataRequiredPadding - ancestorsapmShardLookupDataRequiredPadding = ancestorscacheLineBytes - (((unsafe.Sizeof(ancestorsapmShardLookupData{}) - 1) % ancestorscacheLineBytes) + 1) - ancestorsapmShardLookupDataPadding = ancestorsapmEnablePadding * ancestorsapmShardLookupDataRequiredPadding - - // These define fractional thresholds for when apmShard.rehash() is called - // (i.e. the load factor) and when it rehases to a larger table - // respectively. They are chosen such that the rehash threshold = the - // expansion threshold + 1/2, so that when reuse of deleted slots is rare - // or non-existent, rehashing occurs after the insertion of at least 1/2 - // the table's size in new entries, which is acceptably infrequent. - ancestorsapmRehashThresholdNum = 2 - ancestorsapmRehashThresholdDen = 3 - ancestorsapmExpansionThresholdNum = 1 - ancestorsapmExpansionThresholdDen = 6 -) - -type ancestorsapmSlot struct { - // slot states are indicated by val: - // - // * Empty: val == nil; key is meaningless. May transition to full or - // evacuated with dirtyMu locked. - // - // * Full: val != nil, tombstone(), or evacuated(); key is immutable. val - // is the Value mapped to key. May transition to deleted or evacuated. - // - // * Deleted: val == tombstone(); key is still immutable. key is mapped to - // no Value. May transition to full or evacuated. - // - // * Evacuated: val == evacuated(); key is immutable. Set by rehashing on - // slots that have already been moved, requiring readers to wait for - // rehashing to complete and use the new table. Terminal state. - // - // Note that once val is non-nil, it cannot become nil again. That is, the - // transition from empty to non-empty is irreversible for a given slot; - // the only way to create more empty slots is by rehashing. - val unsafe.Pointer - key *MutexClass -} - -func ancestorsapmSlotAt(slots unsafe.Pointer, pos uintptr) *ancestorsapmSlot { - return (*ancestorsapmSlot)(unsafe.Pointer(uintptr(slots) + pos*unsafe.Sizeof(ancestorsapmSlot{}))) -} - -var ancestorstombstoneObj byte - -func ancestorstombstone() unsafe.Pointer { - return unsafe.Pointer(&ancestorstombstoneObj) -} - -var ancestorsevacuatedObj byte - -func ancestorsevacuated() unsafe.Pointer { - return unsafe.Pointer(&ancestorsevacuatedObj) -} - -// Load returns the Value stored in m for key. -func (m *ancestorsAtomicPtrMap) Load(key *MutexClass) *string { - hash := ancestorshasher.Hash(key) - shard := m.shard(hash) - -retry: - epoch := shard.seq.BeginRead() - slots := atomic.LoadPointer(&shard.slots) - mask := atomic.LoadUintptr(&shard.mask) - if !shard.seq.ReadOk(epoch) { - goto retry - } - if slots == nil { - return nil - } - - i := hash & mask - inc := uintptr(1) - for { - slot := ancestorsapmSlotAt(slots, i) - slotVal := atomic.LoadPointer(&slot.val) - if slotVal == nil { - - return nil - } - if slotVal == ancestorsevacuated() { - - goto retry - } - if slot.key == key { - if slotVal == ancestorstombstone() { - return nil - } - return (*string)(slotVal) - } - i = (i + inc) & mask - inc++ - } -} - -// Store stores the Value val for key. -func (m *ancestorsAtomicPtrMap) Store(key *MutexClass, val *string) { - m.maybeCompareAndSwap(key, false, nil, val) -} - -// Swap stores the Value val for key and returns the previously-mapped Value. -func (m *ancestorsAtomicPtrMap) Swap(key *MutexClass, val *string) *string { - return m.maybeCompareAndSwap(key, false, nil, val) -} - -// CompareAndSwap checks that the Value stored for key is oldVal; if it is, it -// stores the Value newVal for key. CompareAndSwap returns the previous Value -// stored for key, whether or not it stores newVal. -func (m *ancestorsAtomicPtrMap) CompareAndSwap(key *MutexClass, oldVal, newVal *string) *string { - return m.maybeCompareAndSwap(key, true, oldVal, newVal) -} - -func (m *ancestorsAtomicPtrMap) maybeCompareAndSwap(key *MutexClass, compare bool, typedOldVal, typedNewVal *string) *string { - hash := ancestorshasher.Hash(key) - shard := m.shard(hash) - oldVal := ancestorstombstone() - if typedOldVal != nil { - oldVal = unsafe.Pointer(typedOldVal) - } - newVal := ancestorstombstone() - if typedNewVal != nil { - newVal = unsafe.Pointer(typedNewVal) - } - -retry: - epoch := shard.seq.BeginRead() - slots := atomic.LoadPointer(&shard.slots) - mask := atomic.LoadUintptr(&shard.mask) - if !shard.seq.ReadOk(epoch) { - goto retry - } - if slots == nil { - if (compare && oldVal != ancestorstombstone()) || newVal == ancestorstombstone() { - return nil - } - - shard.rehash(nil) - goto retry - } - - i := hash & mask - inc := uintptr(1) - for { - slot := ancestorsapmSlotAt(slots, i) - slotVal := atomic.LoadPointer(&slot.val) - if slotVal == nil { - if (compare && oldVal != ancestorstombstone()) || newVal == ancestorstombstone() { - return nil - } - - shard.dirtyMu.Lock() - slotVal = atomic.LoadPointer(&slot.val) - if slotVal == nil { - - if dirty, capacity := shard.dirty+1, mask+1; dirty*ancestorsapmRehashThresholdDen >= capacity*ancestorsapmRehashThresholdNum { - shard.dirtyMu.Unlock() - shard.rehash(slots) - goto retry - } - slot.key = key - atomic.StorePointer(&slot.val, newVal) - shard.dirty++ - atomic.AddUintptr(&shard.count, 1) - shard.dirtyMu.Unlock() - return nil - } - - shard.dirtyMu.Unlock() - } - if slotVal == ancestorsevacuated() { - - goto retry - } - if slot.key == key { - - for { - if (compare && oldVal != slotVal) || newVal == slotVal { - if slotVal == ancestorstombstone() { - return nil - } - return (*string)(slotVal) - } - if atomic.CompareAndSwapPointer(&slot.val, slotVal, newVal) { - if slotVal == ancestorstombstone() { - atomic.AddUintptr(&shard.count, 1) - return nil - } - if newVal == ancestorstombstone() { - atomic.AddUintptr(&shard.count, ^uintptr(0)) - } - return (*string)(slotVal) - } - slotVal = atomic.LoadPointer(&slot.val) - if slotVal == ancestorsevacuated() { - goto retry - } - } - } - - i = (i + inc) & mask - inc++ - } -} - -// rehash is marked nosplit to avoid preemption during table copying. -// -//go:nosplit -func (shard *ancestorsapmShard) rehash(oldSlots unsafe.Pointer) { - shard.rehashMu.Lock() - defer shard.rehashMu.Unlock() - - if shard.slots != oldSlots { - - return - } - - newSize := uintptr(8) - if oldSlots != nil { - oldSize := shard.mask + 1 - newSize = oldSize - if count := atomic.LoadUintptr(&shard.count) + 1; count*ancestorsapmExpansionThresholdDen > oldSize*ancestorsapmExpansionThresholdNum { - newSize *= 2 - } - } - - newSlotsSlice := make([]ancestorsapmSlot, newSize) - newSlots := unsafe.Pointer(&newSlotsSlice[0]) - newMask := newSize - 1 - - shard.dirtyMu.Lock() - shard.seq.BeginWrite() - - if oldSlots != nil { - realCount := uintptr(0) - - oldMask := shard.mask - for i := uintptr(0); i <= oldMask; i++ { - oldSlot := ancestorsapmSlotAt(oldSlots, i) - val := atomic.SwapPointer(&oldSlot.val, ancestorsevacuated()) - if val == nil || val == ancestorstombstone() { - continue - } - hash := ancestorshasher.Hash(oldSlot.key) - j := hash & newMask - inc := uintptr(1) - for { - newSlot := ancestorsapmSlotAt(newSlots, j) - if newSlot.val == nil { - newSlot.val = val - newSlot.key = oldSlot.key - break - } - j = (j + inc) & newMask - inc++ - } - realCount++ - } - - shard.dirty = realCount - } - - atomic.StorePointer(&shard.slots, newSlots) - atomic.StoreUintptr(&shard.mask, newMask) - - shard.seq.EndWrite() - shard.dirtyMu.Unlock() -} - -// Range invokes f on each Key-Value pair stored in m. If any call to f returns -// false, Range stops iteration and returns. -// -// Range does not necessarily correspond to any consistent snapshot of the -// Map's contents: no Key will be visited more than once, but if the Value for -// any Key is stored or deleted concurrently, Range may reflect any mapping for -// that Key from any point during the Range call. -// -// f must not call other methods on m. -func (m *ancestorsAtomicPtrMap) Range(f func(key *MutexClass, val *string) bool) { - for si := 0; si < len(m.shards); si++ { - shard := &m.shards[si] - if !shard.doRange(f) { - return - } - } -} - -func (shard *ancestorsapmShard) doRange(f func(key *MutexClass, val *string) bool) bool { - - shard.rehashMu.Lock() - defer shard.rehashMu.Unlock() - slots := shard.slots - if slots == nil { - return true - } - mask := shard.mask - for i := uintptr(0); i <= mask; i++ { - slot := ancestorsapmSlotAt(slots, i) - slotVal := atomic.LoadPointer(&slot.val) - if slotVal == nil || slotVal == ancestorstombstone() { - continue - } - if !f(slot.key, (*string)(slotVal)) { - return false - } - } - return true -} - -// RangeRepeatable is like Range, but: -// -// - RangeRepeatable may visit the same Key multiple times in the presence of -// concurrent mutators, possibly passing different Values to f in different -// calls. -// -// - It is safe for f to call other methods on m. -func (m *ancestorsAtomicPtrMap) RangeRepeatable(f func(key *MutexClass, val *string) bool) { - for si := 0; si < len(m.shards); si++ { - shard := &m.shards[si] - - retry: - epoch := shard.seq.BeginRead() - slots := atomic.LoadPointer(&shard.slots) - mask := atomic.LoadUintptr(&shard.mask) - if !shard.seq.ReadOk(epoch) { - goto retry - } - if slots == nil { - continue - } - - for i := uintptr(0); i <= mask; i++ { - slot := ancestorsapmSlotAt(slots, i) - slotVal := atomic.LoadPointer(&slot.val) - if slotVal == ancestorsevacuated() { - goto retry - } - if slotVal == nil || slotVal == ancestorstombstone() { - continue - } - if !f(slot.key, (*string)(slotVal)) { - return - } - } - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/locking/atomicptrmap_goroutine_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/sync/locking/atomicptrmap_goroutine_unsafe.go deleted file mode 100644 index 8ac8d98c46..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/locking/atomicptrmap_goroutine_unsafe.go +++ /dev/null @@ -1,445 +0,0 @@ -package locking - -import ( - "sync/atomic" - "unsafe" - - "gvisor.dev/gvisor/pkg/gohacks" - "gvisor.dev/gvisor/pkg/sync" -) - -const ( - // ShardOrder is an optional parameter specifying the base-2 log of the - // number of shards per AtomicPtrMap. Higher values of ShardOrder reduce - // unnecessary synchronization between unrelated concurrent operations, - // improving performance for write-heavy workloads, but increase memory - // usage for small maps. - goroutineLocksShardOrder = 0 -) - -// Hasher is an optional type parameter. If Hasher is provided, it must define -// the Init and Hash methods. One Hasher will be shared by all AtomicPtrMaps. -type goroutineLocksHasher struct { - goroutineLocksdefaultHasher -} - -// defaultHasher is the default Hasher. This indirection exists because -// defaultHasher must exist even if a custom Hasher is provided, to prevent the -// Go compiler from complaining about defaultHasher's unused imports. -type goroutineLocksdefaultHasher struct { - fn func(unsafe.Pointer, uintptr) uintptr - seed uintptr -} - -// Init initializes the Hasher. -func (h *goroutineLocksdefaultHasher) Init() { - h.fn = sync.MapKeyHasher(map[int64]*goroutineLocks(nil)) - h.seed = sync.RandUintptr() -} - -// Hash returns the hash value for the given Key. -func (h *goroutineLocksdefaultHasher) Hash(key int64) uintptr { - return h.fn(gohacks.Noescape(unsafe.Pointer(&key)), h.seed) -} - -var goroutineLockshasher goroutineLocksHasher - -func init() { - goroutineLockshasher.Init() -} - -// An AtomicPtrMap maps Keys to non-nil pointers to Values. AtomicPtrMap are -// safe for concurrent use from multiple goroutines without additional -// synchronization. -// -// The zero value of AtomicPtrMap is empty (maps all Keys to nil) and ready for -// use. AtomicPtrMaps must not be copied after first use. -// -// sync.Map may be faster than AtomicPtrMap if most operations on the map are -// concurrent writes to a fixed set of keys. AtomicPtrMap is usually faster in -// other circumstances. -type goroutineLocksAtomicPtrMap struct { - shards [1 << goroutineLocksShardOrder]goroutineLocksapmShard -} - -func (m *goroutineLocksAtomicPtrMap) shard(hash uintptr) *goroutineLocksapmShard { - // Go defines right shifts >= width of shifted unsigned operand as 0, so - // this is correct even if ShardOrder is 0 (although nogo complains because - // nogo is dumb). - const indexLSB = unsafe.Sizeof(uintptr(0))*8 - goroutineLocksShardOrder - index := hash >> indexLSB - return (*goroutineLocksapmShard)(unsafe.Pointer(uintptr(unsafe.Pointer(&m.shards)) + (index * unsafe.Sizeof(goroutineLocksapmShard{})))) -} - -type goroutineLocksapmShard struct { - goroutineLocksapmShardMutationData - _ [goroutineLocksapmShardMutationDataPadding]byte - goroutineLocksapmShardLookupData - _ [goroutineLocksapmShardLookupDataPadding]byte -} - -type goroutineLocksapmShardMutationData struct { - dirtyMu sync.Mutex // serializes slot transitions out of empty - dirty uintptr // # slots with val != nil - count uintptr // # slots with val != nil and val != tombstone() - rehashMu sync.Mutex // serializes rehashing -} - -type goroutineLocksapmShardLookupData struct { - seq sync.SeqCount // allows atomic reads of slots+mask - slots unsafe.Pointer // [mask+1]slot or nil; protected by rehashMu/seq - mask uintptr // always (a power of 2) - 1; protected by rehashMu/seq -} - -const ( - goroutineLockscacheLineBytes = 64 - // Cache line padding is enabled if sharding is. - goroutineLocksapmEnablePadding = (goroutineLocksShardOrder + 63) >> 6 // 0 if ShardOrder == 0, 1 otherwise - // The -1 and +1 below are required to ensure that if unsafe.Sizeof(T) % - // cacheLineBytes == 0, then padding is 0 (rather than cacheLineBytes). - goroutineLocksapmShardMutationDataRequiredPadding = goroutineLockscacheLineBytes - (((unsafe.Sizeof(goroutineLocksapmShardMutationData{}) - 1) % goroutineLockscacheLineBytes) + 1) - goroutineLocksapmShardMutationDataPadding = goroutineLocksapmEnablePadding * goroutineLocksapmShardMutationDataRequiredPadding - goroutineLocksapmShardLookupDataRequiredPadding = goroutineLockscacheLineBytes - (((unsafe.Sizeof(goroutineLocksapmShardLookupData{}) - 1) % goroutineLockscacheLineBytes) + 1) - goroutineLocksapmShardLookupDataPadding = goroutineLocksapmEnablePadding * goroutineLocksapmShardLookupDataRequiredPadding - - // These define fractional thresholds for when apmShard.rehash() is called - // (i.e. the load factor) and when it rehases to a larger table - // respectively. They are chosen such that the rehash threshold = the - // expansion threshold + 1/2, so that when reuse of deleted slots is rare - // or non-existent, rehashing occurs after the insertion of at least 1/2 - // the table's size in new entries, which is acceptably infrequent. - goroutineLocksapmRehashThresholdNum = 2 - goroutineLocksapmRehashThresholdDen = 3 - goroutineLocksapmExpansionThresholdNum = 1 - goroutineLocksapmExpansionThresholdDen = 6 -) - -type goroutineLocksapmSlot struct { - // slot states are indicated by val: - // - // * Empty: val == nil; key is meaningless. May transition to full or - // evacuated with dirtyMu locked. - // - // * Full: val != nil, tombstone(), or evacuated(); key is immutable. val - // is the Value mapped to key. May transition to deleted or evacuated. - // - // * Deleted: val == tombstone(); key is still immutable. key is mapped to - // no Value. May transition to full or evacuated. - // - // * Evacuated: val == evacuated(); key is immutable. Set by rehashing on - // slots that have already been moved, requiring readers to wait for - // rehashing to complete and use the new table. Terminal state. - // - // Note that once val is non-nil, it cannot become nil again. That is, the - // transition from empty to non-empty is irreversible for a given slot; - // the only way to create more empty slots is by rehashing. - val unsafe.Pointer - key int64 -} - -func goroutineLocksapmSlotAt(slots unsafe.Pointer, pos uintptr) *goroutineLocksapmSlot { - return (*goroutineLocksapmSlot)(unsafe.Pointer(uintptr(slots) + pos*unsafe.Sizeof(goroutineLocksapmSlot{}))) -} - -var goroutineLockstombstoneObj byte - -func goroutineLockstombstone() unsafe.Pointer { - return unsafe.Pointer(&goroutineLockstombstoneObj) -} - -var goroutineLocksevacuatedObj byte - -func goroutineLocksevacuated() unsafe.Pointer { - return unsafe.Pointer(&goroutineLocksevacuatedObj) -} - -// Load returns the Value stored in m for key. -func (m *goroutineLocksAtomicPtrMap) Load(key int64) *goroutineLocks { - hash := goroutineLockshasher.Hash(key) - shard := m.shard(hash) - -retry: - epoch := shard.seq.BeginRead() - slots := atomic.LoadPointer(&shard.slots) - mask := atomic.LoadUintptr(&shard.mask) - if !shard.seq.ReadOk(epoch) { - goto retry - } - if slots == nil { - return nil - } - - i := hash & mask - inc := uintptr(1) - for { - slot := goroutineLocksapmSlotAt(slots, i) - slotVal := atomic.LoadPointer(&slot.val) - if slotVal == nil { - - return nil - } - if slotVal == goroutineLocksevacuated() { - - goto retry - } - if slot.key == key { - if slotVal == goroutineLockstombstone() { - return nil - } - return (*goroutineLocks)(slotVal) - } - i = (i + inc) & mask - inc++ - } -} - -// Store stores the Value val for key. -func (m *goroutineLocksAtomicPtrMap) Store(key int64, val *goroutineLocks) { - m.maybeCompareAndSwap(key, false, nil, val) -} - -// Swap stores the Value val for key and returns the previously-mapped Value. -func (m *goroutineLocksAtomicPtrMap) Swap(key int64, val *goroutineLocks) *goroutineLocks { - return m.maybeCompareAndSwap(key, false, nil, val) -} - -// CompareAndSwap checks that the Value stored for key is oldVal; if it is, it -// stores the Value newVal for key. CompareAndSwap returns the previous Value -// stored for key, whether or not it stores newVal. -func (m *goroutineLocksAtomicPtrMap) CompareAndSwap(key int64, oldVal, newVal *goroutineLocks) *goroutineLocks { - return m.maybeCompareAndSwap(key, true, oldVal, newVal) -} - -func (m *goroutineLocksAtomicPtrMap) maybeCompareAndSwap(key int64, compare bool, typedOldVal, typedNewVal *goroutineLocks) *goroutineLocks { - hash := goroutineLockshasher.Hash(key) - shard := m.shard(hash) - oldVal := goroutineLockstombstone() - if typedOldVal != nil { - oldVal = unsafe.Pointer(typedOldVal) - } - newVal := goroutineLockstombstone() - if typedNewVal != nil { - newVal = unsafe.Pointer(typedNewVal) - } - -retry: - epoch := shard.seq.BeginRead() - slots := atomic.LoadPointer(&shard.slots) - mask := atomic.LoadUintptr(&shard.mask) - if !shard.seq.ReadOk(epoch) { - goto retry - } - if slots == nil { - if (compare && oldVal != goroutineLockstombstone()) || newVal == goroutineLockstombstone() { - return nil - } - - shard.rehash(nil) - goto retry - } - - i := hash & mask - inc := uintptr(1) - for { - slot := goroutineLocksapmSlotAt(slots, i) - slotVal := atomic.LoadPointer(&slot.val) - if slotVal == nil { - if (compare && oldVal != goroutineLockstombstone()) || newVal == goroutineLockstombstone() { - return nil - } - - shard.dirtyMu.Lock() - slotVal = atomic.LoadPointer(&slot.val) - if slotVal == nil { - - if dirty, capacity := shard.dirty+1, mask+1; dirty*goroutineLocksapmRehashThresholdDen >= capacity*goroutineLocksapmRehashThresholdNum { - shard.dirtyMu.Unlock() - shard.rehash(slots) - goto retry - } - slot.key = key - atomic.StorePointer(&slot.val, newVal) - shard.dirty++ - atomic.AddUintptr(&shard.count, 1) - shard.dirtyMu.Unlock() - return nil - } - - shard.dirtyMu.Unlock() - } - if slotVal == goroutineLocksevacuated() { - - goto retry - } - if slot.key == key { - - for { - if (compare && oldVal != slotVal) || newVal == slotVal { - if slotVal == goroutineLockstombstone() { - return nil - } - return (*goroutineLocks)(slotVal) - } - if atomic.CompareAndSwapPointer(&slot.val, slotVal, newVal) { - if slotVal == goroutineLockstombstone() { - atomic.AddUintptr(&shard.count, 1) - return nil - } - if newVal == goroutineLockstombstone() { - atomic.AddUintptr(&shard.count, ^uintptr(0)) - } - return (*goroutineLocks)(slotVal) - } - slotVal = atomic.LoadPointer(&slot.val) - if slotVal == goroutineLocksevacuated() { - goto retry - } - } - } - - i = (i + inc) & mask - inc++ - } -} - -// rehash is marked nosplit to avoid preemption during table copying. -// -//go:nosplit -func (shard *goroutineLocksapmShard) rehash(oldSlots unsafe.Pointer) { - shard.rehashMu.Lock() - defer shard.rehashMu.Unlock() - - if shard.slots != oldSlots { - - return - } - - newSize := uintptr(8) - if oldSlots != nil { - oldSize := shard.mask + 1 - newSize = oldSize - if count := atomic.LoadUintptr(&shard.count) + 1; count*goroutineLocksapmExpansionThresholdDen > oldSize*goroutineLocksapmExpansionThresholdNum { - newSize *= 2 - } - } - - newSlotsSlice := make([]goroutineLocksapmSlot, newSize) - newSlots := unsafe.Pointer(&newSlotsSlice[0]) - newMask := newSize - 1 - - shard.dirtyMu.Lock() - shard.seq.BeginWrite() - - if oldSlots != nil { - realCount := uintptr(0) - - oldMask := shard.mask - for i := uintptr(0); i <= oldMask; i++ { - oldSlot := goroutineLocksapmSlotAt(oldSlots, i) - val := atomic.SwapPointer(&oldSlot.val, goroutineLocksevacuated()) - if val == nil || val == goroutineLockstombstone() { - continue - } - hash := goroutineLockshasher.Hash(oldSlot.key) - j := hash & newMask - inc := uintptr(1) - for { - newSlot := goroutineLocksapmSlotAt(newSlots, j) - if newSlot.val == nil { - newSlot.val = val - newSlot.key = oldSlot.key - break - } - j = (j + inc) & newMask - inc++ - } - realCount++ - } - - shard.dirty = realCount - } - - atomic.StorePointer(&shard.slots, newSlots) - atomic.StoreUintptr(&shard.mask, newMask) - - shard.seq.EndWrite() - shard.dirtyMu.Unlock() -} - -// Range invokes f on each Key-Value pair stored in m. If any call to f returns -// false, Range stops iteration and returns. -// -// Range does not necessarily correspond to any consistent snapshot of the -// Map's contents: no Key will be visited more than once, but if the Value for -// any Key is stored or deleted concurrently, Range may reflect any mapping for -// that Key from any point during the Range call. -// -// f must not call other methods on m. -func (m *goroutineLocksAtomicPtrMap) Range(f func(key int64, val *goroutineLocks) bool) { - for si := 0; si < len(m.shards); si++ { - shard := &m.shards[si] - if !shard.doRange(f) { - return - } - } -} - -func (shard *goroutineLocksapmShard) doRange(f func(key int64, val *goroutineLocks) bool) bool { - - shard.rehashMu.Lock() - defer shard.rehashMu.Unlock() - slots := shard.slots - if slots == nil { - return true - } - mask := shard.mask - for i := uintptr(0); i <= mask; i++ { - slot := goroutineLocksapmSlotAt(slots, i) - slotVal := atomic.LoadPointer(&slot.val) - if slotVal == nil || slotVal == goroutineLockstombstone() { - continue - } - if !f(slot.key, (*goroutineLocks)(slotVal)) { - return false - } - } - return true -} - -// RangeRepeatable is like Range, but: -// -// - RangeRepeatable may visit the same Key multiple times in the presence of -// concurrent mutators, possibly passing different Values to f in different -// calls. -// -// - It is safe for f to call other methods on m. -func (m *goroutineLocksAtomicPtrMap) RangeRepeatable(f func(key int64, val *goroutineLocks) bool) { - for si := 0; si < len(m.shards); si++ { - shard := &m.shards[si] - - retry: - epoch := shard.seq.BeginRead() - slots := atomic.LoadPointer(&shard.slots) - mask := atomic.LoadUintptr(&shard.mask) - if !shard.seq.ReadOk(epoch) { - goto retry - } - if slots == nil { - continue - } - - for i := uintptr(0); i <= mask; i++ { - slot := goroutineLocksapmSlotAt(slots, i) - slotVal := atomic.LoadPointer(&slot.val) - if slotVal == goroutineLocksevacuated() { - goto retry - } - if slotVal == nil || slotVal == goroutineLockstombstone() { - continue - } - if !f(slot.key, (*goroutineLocks)(slotVal)) { - return - } - } - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/locking/lockdep.go b/vendor/gvisor.dev/gvisor/pkg/sync/locking/lockdep.go deleted file mode 100644 index 871466c36b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/locking/lockdep.go +++ /dev/null @@ -1,191 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build lockdep -// +build lockdep - -package locking - -import ( - "fmt" - "reflect" - "strings" - - "gvisor.dev/gvisor/pkg/goid" - "gvisor.dev/gvisor/pkg/log" -) - -// NewMutexClass allocates a new mutex class. -func NewMutexClass(t reflect.Type, lockNames []string) *MutexClass { - c := &MutexClass{ - typ: t, - nestedLockNames: lockNames, - nestedLockClasses: make([]*MutexClass, len(lockNames)), - } - for i := range lockNames { - c.nestedLockClasses[i] = NewMutexClass(t, nil) - c.nestedLockClasses[i].lockName = lockNames[i] - } - return c -} - -// MutexClass describes dependencies of a specific class. -type MutexClass struct { - // The type of the mutex. - typ reflect.Type - - // Name of the nested lock of the above type. - lockName string - - // ancestors are locks that are locked before the current class. - ancestors ancestorsAtomicPtrMap - // nestedLockNames is a list of names for nested locks which are considered difference instances - // of the same lock class. - nestedLockNames []string - // namedLockClasses is a list of MutexClass instances of the same mutex class, but that are - // considered OK to lock simultaneously with each other, as well as with this mutex class. - // This is used for nested locking, where multiple instances of the same lock class are used - // simultaneously. - // Maps one-to-one with nestedLockNames. - nestedLockClasses []*MutexClass -} - -func (m *MutexClass) String() string { - if m.lockName == "" { - return m.typ.String() - } - return fmt.Sprintf("%s[%s]", m.typ.String(), m.lockName) -} - -type goroutineLocks map[*MutexClass]bool - -var routineLocks goroutineLocksAtomicPtrMap - -// maxChainLen is the maximum length of a lock chain. -const maxChainLen = 32 - -// checkLock checks that class isn't in the ancestors of prevClass. -func checkLock(class *MutexClass, prevClass *MutexClass, chain []*MutexClass) { - chain = append(chain, prevClass) - if len(chain) >= maxChainLen { - // It can be a race condition with another thread that added - // the lock to the graph but don't complete the validation. - var b strings.Builder - fmt.Fprintf(&b, "WARNING: The maximum lock depth has been reached: %s", chain[0]) - for i := 1; i < len(chain); i++ { - fmt.Fprintf(&b, "-> %s", chain[i]) - } - log.Warningf("%s", b.String()) - return - } - if c := prevClass.ancestors.Load(class); c != nil { - var b strings.Builder - fmt.Fprintf(&b, "WARNING: circular locking detected: %s -> %s:\n%s\n", - chain[0], class, log.LocalStack(3)) - - fmt.Fprintf(&b, "known lock chain: ") - c := class - for i := len(chain) - 1; i >= 0; i-- { - fmt.Fprintf(&b, "%s -> ", c) - c = chain[i] - } - fmt.Fprintf(&b, "%s\n", chain[0]) - c = class - for i := len(chain) - 1; i >= 0; i-- { - fmt.Fprintf(&b, "\n====== %s -> %s =====\n%s", - c, chain[i], *chain[i].ancestors.Load(c)) - c = chain[i] - } - panic(b.String()) - } - prevClass.ancestors.RangeRepeatable(func(parentClass *MutexClass, stacks *string) bool { - // The recursion is fine here. If it fails, you need to reduce - // a number of nested locks. - checkLock(class, parentClass, chain) - return true - }) -} - -// AddGLock records a lock to the current goroutine and updates dependencies. -func AddGLock(class *MutexClass, lockNameIndex int) { - gid := goid.Get() - - if lockNameIndex != -1 { - class = class.nestedLockClasses[lockNameIndex] - } - currentLocks := routineLocks.Load(gid) - if currentLocks == nil { - locks := goroutineLocks(make(map[*MutexClass]bool)) - locks[class] = true - routineLocks.Store(gid, &locks) - return - } - - if (*currentLocks)[class] { - panic(fmt.Sprintf("nested locking: %s:\n%s", class, log.LocalStack(2))) - } - (*currentLocks)[class] = true - // Check dependencies and add locked mutexes to the ancestors list. - for prevClass := range *currentLocks { - if prevClass == class { - continue - } - checkLock(class, prevClass, nil) - - if c := class.ancestors.Load(prevClass); c == nil { - stacks := string(log.LocalStack(2)) - class.ancestors.Store(prevClass, &stacks) - } - } -} - -// DelGLock deletes a lock from the current goroutine. -func DelGLock(class *MutexClass, lockNameIndex int) { - if lockNameIndex != -1 { - class = class.nestedLockClasses[lockNameIndex] - } - gid := goid.Get() - currentLocks := routineLocks.Load(gid) - if currentLocks == nil { - panic("the current goroutine doesn't have locks") - } - if _, ok := (*currentLocks)[class]; !ok { - var b strings.Builder - fmt.Fprintf(&b, "Lock not held: %s:\n", class) - fmt.Fprintf(&b, "Current stack:\n%s\n", string(log.LocalStack(2))) - fmt.Fprintf(&b, "Current locks:\n") - for c := range *currentLocks { - heldToClass := class.ancestors.Load(c) - classToHeld := c.ancestors.Load(class) - if heldToClass == nil && classToHeld == nil { - fmt.Fprintf(&b, "\t- Holding lock: %s (no dependency to/from %s found)\n", c, class) - } else if heldToClass != nil && classToHeld != nil { - fmt.Fprintf(&b, "\t- Holding lock: %s (mutual dependency with %s found, this should never happen)\n", c, class) - } else if heldToClass != nil && classToHeld == nil { - fmt.Fprintf(&b, "\t- Holding lock: %s (dependency: %s -> %s)\n", c, c, class) - fmt.Fprintf(&b, "%s\n\n", *heldToClass) - } else if heldToClass == nil && classToHeld != nil { - fmt.Fprintf(&b, "\t- Holding lock: %s (dependency: %s -> %s)\n", c, class, c) - fmt.Fprintf(&b, "%s\n\n", *classToHeld) - } - } - fmt.Fprintf(&b, "** End of locks held **\n") - panic(b.String()) - } - - delete(*currentLocks, class) - if len(*currentLocks) == 0 { - routineLocks.Store(gid, nil) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/locking/lockdep_norace.go b/vendor/gvisor.dev/gvisor/pkg/sync/locking/lockdep_norace.go deleted file mode 100644 index 379dc9edf7..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/locking/lockdep_norace.go +++ /dev/null @@ -1,42 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build !lockdep -// +build !lockdep - -package locking - -import ( - "reflect" -) - -type goroutineLocks map[*MutexClass]bool - -// MutexClass is a stub class without the lockdep tag. -type MutexClass struct{} - -// NewMutexClass is no-op without the lockdep tag. -func NewMutexClass(reflect.Type, []string) *MutexClass { - return nil -} - -// AddGLock is no-op without the lockdep tag. -// -//go:inline -func AddGLock(*MutexClass, int) {} - -// DelGLock is no-op without the lockdep tag. -// -//go:inline -func DelGLock(*MutexClass, int) {} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/locking/locking.go b/vendor/gvisor.dev/gvisor/pkg/sync/locking/locking.go deleted file mode 100644 index 1b99bc3130..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/locking/locking.go +++ /dev/null @@ -1,28 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package locking implements lock primitives with the correctness validator. -// -// All mutexes are divided on classes and the validator check following conditions: -// - Mutexes of the same class are not taken more than once except cases when -// that is expected. -// - Mutexes are never locked in a reverse order. Lock dependencies are tracked -// on the class level. -// -// The validator is implemented in a very straightforward way. For each mutex -// class, we maintain the ancestors list of all classes that have ever been -// taken before the target one. For each goroutine, we have the list of -// currently locked mutexes. And finally, all lock methods check that -// ancestors of currently locked mutexes don't contain the target one. -package locking diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/mutex_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/sync/mutex_unsafe.go deleted file mode 100644 index 9bf4127003..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/mutex_unsafe.go +++ /dev/null @@ -1,79 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package sync - -import ( - "sync" - "unsafe" -) - -// CrossGoroutineMutex is equivalent to Mutex, but it need not be unlocked by a -// the same goroutine that locked the mutex. -type CrossGoroutineMutex struct { - m sync.Mutex -} - -// Lock locks the underlying Mutex. -// +checklocksignore -func (m *CrossGoroutineMutex) Lock() { - m.m.Lock() -} - -// Unlock unlocks the underlying Mutex. -// +checklocksignore -func (m *CrossGoroutineMutex) Unlock() { - m.m.Unlock() -} - -// TryLock tries to acquire the mutex. It returns true if it succeeds and false -// otherwise. TryLock does not block. -func (m *CrossGoroutineMutex) TryLock() bool { - return m.m.TryLock() -} - -// Mutex is a mutual exclusion lock. The zero value for a Mutex is an unlocked -// mutex. -// -// A Mutex must not be copied after first use. -// -// A Mutex must be unlocked by the same goroutine that locked it. This -// invariant is enforced with the 'checklocks' build tag. -type Mutex struct { - m CrossGoroutineMutex -} - -// Lock locks m. If the lock is already in use, the calling goroutine blocks -// until the mutex is available. -// +checklocksignore -func (m *Mutex) Lock() { - noteLock(unsafe.Pointer(m)) - m.m.Lock() -} - -// Unlock unlocks m. -// -// Preconditions: -// - m is locked. -// - m was locked by this goroutine. -// -// +checklocksignore -func (m *Mutex) Unlock() { - noteUnlock(unsafe.Pointer(m)) - m.m.Unlock() -} - -// TryLock tries to acquire the mutex. It returns true if it succeeds and false -// otherwise. TryLock does not block. -// +checklocksignore -func (m *Mutex) TryLock() bool { - // Note lock first to enforce proper locking even if unsuccessful. - noteLock(unsafe.Pointer(m)) - locked := m.m.TryLock() - if !locked { - noteUnlock(unsafe.Pointer(m)) - } - return locked -} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/nocopy.go b/vendor/gvisor.dev/gvisor/pkg/sync/nocopy.go deleted file mode 100644 index 722b29501c..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/nocopy.go +++ /dev/null @@ -1,28 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package sync - -// NoCopy may be embedded into structs which must not be copied -// after the first use. -// -// See https://golang.org/issues/8005#issuecomment-190753527 -// for details. -type NoCopy struct{} - -// Lock is a no-op used by -copylocks checker from `go vet`. -func (*NoCopy) Lock() {} - -// Unlock is a no-op used by -copylocks checker from `go vet`. -func (*NoCopy) Unlock() {} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/norace_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/sync/norace_unsafe.go deleted file mode 100644 index 8eca99134e..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/norace_unsafe.go +++ /dev/null @@ -1,47 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !race -// +build !race - -package sync - -import ( - "sync/atomic" - "unsafe" -) - -// RaceEnabled is true if the Go data race detector is enabled. -const RaceEnabled = false - -// RaceDisable has the same semantics as runtime.RaceDisable. -func RaceDisable() { -} - -// RaceEnable has the same semantics as runtime.RaceEnable. -func RaceEnable() { -} - -// RaceAcquire has the same semantics as runtime.RaceAcquire. -func RaceAcquire(addr unsafe.Pointer) { -} - -// RaceRelease has the same semantics as runtime.RaceRelease. -func RaceRelease(addr unsafe.Pointer) { -} - -// RaceReleaseMerge has the same semantics as runtime.RaceReleaseMerge. -func RaceReleaseMerge(addr unsafe.Pointer) { -} - -// RaceUncheckedAtomicCompareAndSwapUintptr is equivalent to -// sync/atomic.CompareAndSwapUintptr, but is not checked by the race detector. -// This is necessary when implementing gopark callbacks, since no race context -// is available during their execution. -func RaceUncheckedAtomicCompareAndSwapUintptr(ptr *uintptr, old, new uintptr) bool { - // Use atomic.CompareAndSwapUintptr outside of race builds for - // inlinability. - return atomic.CompareAndSwapUintptr(ptr, old, new) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/race_amd64.s b/vendor/gvisor.dev/gvisor/pkg/sync/race_amd64.s deleted file mode 100644 index c99481401d..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/race_amd64.s +++ /dev/null @@ -1,33 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build race && amd64 -// +build race,amd64 - -#include "textflag.h" - -// func RaceUncheckedAtomicCompareAndSwapUintptr(ptr *uintptr, old, new uintptr) bool -TEXT ·RaceUncheckedAtomicCompareAndSwapUintptr(SB),NOSPLIT|NOFRAME,$0-25 - MOVQ ptr+0(FP), DI - MOVQ old+8(FP), AX - MOVQ new+16(FP), SI - - LOCK - CMPXCHGQ SI, 0(DI) - - SETEQ AX - MOVB AX, ret+24(FP) - - RET - diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/race_arm64.s b/vendor/gvisor.dev/gvisor/pkg/sync/race_arm64.s deleted file mode 100644 index c4192e870a..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/race_arm64.s +++ /dev/null @@ -1,35 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build race && arm64 -// +build race,arm64 - -#include "textflag.h" - -// func RaceUncheckedAtomicCompareAndSwapUintptr(ptr *uintptr, old, new uintptr) bool -TEXT ·RaceUncheckedAtomicCompareAndSwapUintptr(SB),NOSPLIT,$0-25 - MOVD ptr+0(FP), R0 - MOVD old+8(FP), R1 - MOVD new+16(FP), R1 -again: - LDAXR (R0), R3 - CMP R1, R3 - BNE ok - STLXR R2, (R0), R3 - CBNZ R3, again -ok: - CSET EQ, R0 - MOVB R0, ret+24(FP) - RET - diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/race_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/sync/race_unsafe.go deleted file mode 100644 index 381163cac5..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/race_unsafe.go +++ /dev/null @@ -1,48 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build race -// +build race - -package sync - -import ( - "runtime" - "unsafe" -) - -// RaceEnabled is true if the Go data race detector is enabled. -const RaceEnabled = true - -// RaceDisable has the same semantics as runtime.RaceDisable. -func RaceDisable() { - runtime.RaceDisable() -} - -// RaceEnable has the same semantics as runtime.RaceEnable. -func RaceEnable() { - runtime.RaceEnable() -} - -// RaceAcquire has the same semantics as runtime.RaceAcquire. -func RaceAcquire(addr unsafe.Pointer) { - runtime.RaceAcquire(addr) -} - -// RaceRelease has the same semantics as runtime.RaceRelease. -func RaceRelease(addr unsafe.Pointer) { - runtime.RaceRelease(addr) -} - -// RaceReleaseMerge has the same semantics as runtime.RaceReleaseMerge. -func RaceReleaseMerge(addr unsafe.Pointer) { - runtime.RaceReleaseMerge(addr) -} - -// RaceUncheckedAtomicCompareAndSwapUintptr is equivalent to -// sync/atomic.CompareAndSwapUintptr, but is not checked by the race detector. -// This is necessary when implementing gopark callbacks, since no race context -// is available during their execution. -func RaceUncheckedAtomicCompareAndSwapUintptr(ptr *uintptr, old, new uintptr) bool diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/runtime.go b/vendor/gvisor.dev/gvisor/pkg/sync/runtime.go deleted file mode 100644 index e4604e83ed..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/runtime.go +++ /dev/null @@ -1,22 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package sync - -import ( - "runtime" -) - -// Dummy reference for facts. -const _ = runtime.Compiler diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_amd64.go b/vendor/gvisor.dev/gvisor/pkg/sync/runtime_amd64.go deleted file mode 100644 index dad10bfef2..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_amd64.go +++ /dev/null @@ -1,30 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build amd64 - -package sync - -import ( - "sync/atomic" -) - -const supportsWakeSuppression = true - -// addrOfSpinning returns the address of runtime.sched.nmspinning. -func addrOfSpinning() *int32 - -// nmspinning caches addrOfSpinning. -var nmspinning = addrOfSpinning() - -//go:nosplit -func preGoReadyWakeSuppression() { - atomic.AddInt32(nmspinning, 1) -} - -//go:nosplit -func postGoReadyWakeSuppression() { - atomic.AddInt32(nmspinning, -1) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_constants.go b/vendor/gvisor.dev/gvisor/pkg/sync/runtime_constants.go deleted file mode 100644 index d6eef328e0..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_constants.go +++ /dev/null @@ -1,22 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package sync - -// Values for the reason argument to gopark, from Go's src/runtime/runtime2.go. -const ( - WaitReasonSelect uint8 = 9 // +checkconst runtime waitReasonSelect - WaitReasonChanReceive uint8 = 14 // +checkconst runtime waitReasonChanReceive - WaitReasonSemacquire uint8 = 18 // +checkconst runtime waitReasonSemacquire -) diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_exectracer2.go b/vendor/gvisor.dev/gvisor/pkg/sync/runtime_exectracer2.go deleted file mode 100644 index 58630af23b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_exectracer2.go +++ /dev/null @@ -1,21 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package sync - -// TraceBlockReason constants, from Go's src/runtime/trace2runtime.go. -const ( - TraceBlockSelect TraceBlockReason = 3 // +checkconst runtime traceBlockSelect - TraceBlockSync TraceBlockReason = 5 // +checkconst runtime traceBlockSync -) diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_go121_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/sync/runtime_go121_unsafe.go deleted file mode 100644 index 344b55663d..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_go121_unsafe.go +++ /dev/null @@ -1,16 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build go1.21 - -package sync - -import ( - "unsafe" -) - -// Use checkoffset to assert that maptype.hasher (the only field we use) has -// the correct offset. -const maptypeHasherOffset = unsafe.Offsetof(maptype{}.Hasher) // +checkoffset internal/abi MapType.Hasher diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_not_go121_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/sync/runtime_not_go121_unsafe.go deleted file mode 100644 index 4d7e8b9fb9..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_not_go121_unsafe.go +++ /dev/null @@ -1,18 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// runtime.maptype is moved to internal/abi.MapType in Go 1.21. -// -//go:build !go1.21 - -package sync - -import ( - "unsafe" -) - -// Use checkoffset to assert that maptype.hasher (the only field we use) has -// the correct offset. -const maptypeHasherOffset = unsafe.Offsetof(maptype{}.Hasher) // +checkoffset runtime maptype.hasher diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_other.go b/vendor/gvisor.dev/gvisor/pkg/sync/runtime_other.go deleted file mode 100644 index cbd0621636..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_other.go +++ /dev/null @@ -1,14 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build !amd64 -// +build !amd64 - -package sync - -const supportsWakeSuppression = false - -func preGoReadyWakeSuppression() {} // Never called. -func postGoReadyWakeSuppression() {} // Never called. diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_spinning_amd64.s b/vendor/gvisor.dev/gvisor/pkg/sync/runtime_spinning_amd64.s deleted file mode 100644 index 37f69471fd..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_spinning_amd64.s +++ /dev/null @@ -1,25 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build amd64 - -#include "textflag.h" - -#define NMSPINNING_OFFSET 92 // +checkoffset runtime schedt.nmspinning - -TEXT ·addrOfSpinning(SB),NOSPLIT|NOFRAME,$0-8 - LEAQ runtime·sched(SB), AX - ADDQ $NMSPINNING_OFFSET, AX - MOVQ AX, ret+0(FP) - RET diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_spinning_other.s b/vendor/gvisor.dev/gvisor/pkg/sync/runtime_spinning_other.s deleted file mode 100644 index b6391d2ba7..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_spinning_other.s +++ /dev/null @@ -1,18 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build !amd64 - -// This file is intentionally left blank. Other arches don't use -// addrOfSpinning, but we still need an input to the nogo template rule. diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/sync/runtime_unsafe.go deleted file mode 100644 index 5bc0a92e07..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/runtime_unsafe.go +++ /dev/null @@ -1,140 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// //go:linkname directives type-checked by checklinkname. -// Runtime type copies checked by checkoffset. - -package sync - -import ( - "fmt" - "reflect" - "unsafe" -) - -// Goyield is runtime.goyield, which is similar to runtime.Gosched but only -// yields the processor to other goroutines already on the processor's -// runqueue. -// -//go:nosplit -func Goyield() { - goyield() -} - -// Gopark is runtime.gopark. Gopark calls unlockf(pointer to runtime.g, lock); -// if unlockf returns true, Gopark blocks until Goready(pointer to runtime.g) -// is called. unlockf and its callees must be nosplit and norace, since stack -// splitting and race context are not available where it is called. -// -//go:nosplit -func Gopark(unlockf func(uintptr, unsafe.Pointer) bool, lock unsafe.Pointer, reason uint8, traceReason TraceBlockReason, traceskip int) { - gopark(unlockf, lock, reason, traceReason, traceskip) -} - -//go:linkname gopark runtime.gopark -func gopark(unlockf func(uintptr, unsafe.Pointer) bool, lock unsafe.Pointer, reason uint8, traceReason TraceBlockReason, traceskip int) - -// TraceBlockReason is equivalent to runtime.traceBlockReason. -type TraceBlockReason uint8 - -//go:linkname wakep runtime.wakep -func wakep() - -// Wakep is runtime.wakep. -// -//go:nosplit -func Wakep() { - // This is only supported if we can suppress the wakep called - // from Goready below, which is in certain architectures only. - if supportsWakeSuppression { - wakep() - } -} - -//go:linkname goready runtime.goready -func goready(gp uintptr, traceskip int) - -// Goready is runtime.goready. -// -// The additional wakep argument controls whether a new thread will be kicked to -// execute the P. This should be true in most circumstances. However, if the -// current thread is about to sleep, then this can be false for efficiency. -// -//go:nosplit -func Goready(gp uintptr, traceskip int, wakep bool) { - if supportsWakeSuppression && !wakep { - preGoReadyWakeSuppression() - } - goready(gp, traceskip) - if supportsWakeSuppression && !wakep { - postGoReadyWakeSuppression() - } -} - -// Rand32 returns a non-cryptographically-secure random uint32. -func Rand32() uint32 { - return fastrand() -} - -// Rand64 returns a non-cryptographically-secure random uint64. -func Rand64() uint64 { - return uint64(fastrand())<<32 | uint64(fastrand()) -} - -//go:linkname fastrand runtime.fastrand -func fastrand() uint32 - -// RandUintptr returns a non-cryptographically-secure random uintptr. -func RandUintptr() uintptr { - if unsafe.Sizeof(uintptr(0)) == 4 { - return uintptr(Rand32()) - } - return uintptr(Rand64()) -} - -// MapKeyHasher returns a hash function for pointers of m's key type. -// -// Preconditions: m must be a map. -func MapKeyHasher(m any) func(unsafe.Pointer, uintptr) uintptr { - if rtyp := reflect.TypeOf(m); rtyp.Kind() != reflect.Map { - panic(fmt.Sprintf("sync.MapKeyHasher: m is %v, not map", rtyp)) - } - mtyp := *(**maptype)(unsafe.Pointer(&m)) - return mtyp.Hasher -} - -// maptype is equivalent to the beginning of internal/abi.MapType. -type maptype struct { - size uintptr - ptrdata uintptr - hash uint32 - tflag uint8 - align uint8 - fieldAlign uint8 - kind uint8 - equal func(unsafe.Pointer, unsafe.Pointer) bool - gcdata *byte - str int32 - ptrToThis int32 - key unsafe.Pointer - elem unsafe.Pointer - bucket unsafe.Pointer - Hasher func(unsafe.Pointer, uintptr) uintptr - // more fields -} - -// These functions are only used within the sync package. - -//go:linkname semacquire sync.runtime_Semacquire -func semacquire(addr *uint32) - -//go:linkname semrelease sync.runtime_Semrelease -func semrelease(addr *uint32, handoff bool, skipframes int) - -//go:linkname canSpin sync.runtime_canSpin -func canSpin(i int) bool - -//go:linkname doSpin sync.runtime_doSpin -func doSpin() diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/rwmutex_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/sync/rwmutex_unsafe.go deleted file mode 100644 index 24400bb71c..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/rwmutex_unsafe.go +++ /dev/null @@ -1,314 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Copyright 2019 The gVisor Authors. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// This is mostly copied from the standard library's sync/rwmutex.go. -// -// Happens-before relationships indicated to the race detector: -// - Unlock -> Lock (via writerSem) -// - Unlock -> RLock (via readerSem) -// - RUnlock -> Lock (via writerSem) -// - DowngradeLock -> RLock (via readerSem) - -package sync - -import ( - "sync/atomic" - "unsafe" -) - -// CrossGoroutineRWMutex is equivalent to RWMutex, but it need not be unlocked -// by a the same goroutine that locked the mutex. -type CrossGoroutineRWMutex struct { - // w is held if there are pending writers - // - // We use CrossGoroutineMutex rather than Mutex because the lock - // annotation instrumentation in Mutex will trigger false positives in - // the race detector when called inside of RaceDisable. - w CrossGoroutineMutex - writerSem uint32 // semaphore for writers to wait for completing readers - readerSem uint32 // semaphore for readers to wait for completing writers - readerCount int32 // number of pending readers - readerWait int32 // number of departing readers -} - -const rwmutexMaxReaders = 1 << 30 - -// TryRLock locks rw for reading. It returns true if it succeeds and false -// otherwise. It does not block. -// +checklocksignore -func (rw *CrossGoroutineRWMutex) TryRLock() bool { - if RaceEnabled { - RaceDisable() - } - for { - rc := atomic.LoadInt32(&rw.readerCount) - if rc < 0 { - if RaceEnabled { - RaceEnable() - } - return false - } - if !atomic.CompareAndSwapInt32(&rw.readerCount, rc, rc+1) { - continue - } - if RaceEnabled { - RaceEnable() - RaceAcquire(unsafe.Pointer(&rw.readerSem)) - } - return true - } -} - -// RLock locks rw for reading. -// -// It should not be used for recursive read locking; a blocked Lock call -// excludes new readers from acquiring the lock. See the documentation on the -// RWMutex type. -// +checklocksignore -func (rw *CrossGoroutineRWMutex) RLock() { - if RaceEnabled { - RaceDisable() - } - if atomic.AddInt32(&rw.readerCount, 1) < 0 { - // A writer is pending, wait for it. - semacquire(&rw.readerSem) - } - if RaceEnabled { - RaceEnable() - RaceAcquire(unsafe.Pointer(&rw.readerSem)) - } -} - -// RUnlock undoes a single RLock call. -// -// Preconditions: -// - rw is locked for reading. -// -// +checklocksignore -func (rw *CrossGoroutineRWMutex) RUnlock() { - if RaceEnabled { - RaceReleaseMerge(unsafe.Pointer(&rw.writerSem)) - RaceDisable() - } - if r := atomic.AddInt32(&rw.readerCount, -1); r < 0 { - if r+1 == 0 || r+1 == -rwmutexMaxReaders { - panic("RUnlock of unlocked RWMutex") - } - // A writer is pending. - if atomic.AddInt32(&rw.readerWait, -1) == 0 { - // The last reader unblocks the writer. - semrelease(&rw.writerSem, false, 0) - } - } - if RaceEnabled { - RaceEnable() - } -} - -// TryLock locks rw for writing. It returns true if it succeeds and false -// otherwise. It does not block. -// +checklocksignore -func (rw *CrossGoroutineRWMutex) TryLock() bool { - if RaceEnabled { - RaceDisable() - } - // First, resolve competition with other writers. - if !rw.w.TryLock() { - if RaceEnabled { - RaceEnable() - } - return false - } - // Only proceed if there are no readers. - if !atomic.CompareAndSwapInt32(&rw.readerCount, 0, -rwmutexMaxReaders) { - rw.w.Unlock() - if RaceEnabled { - RaceEnable() - } - return false - } - if RaceEnabled { - RaceEnable() - RaceAcquire(unsafe.Pointer(&rw.writerSem)) - } - return true -} - -// Lock locks rw for writing. If the lock is already locked for reading or -// writing, Lock blocks until the lock is available. -// +checklocksignore -func (rw *CrossGoroutineRWMutex) Lock() { - if RaceEnabled { - RaceDisable() - } - // First, resolve competition with other writers. - rw.w.Lock() - // Announce to readers there is a pending writer. - r := atomic.AddInt32(&rw.readerCount, -rwmutexMaxReaders) + rwmutexMaxReaders - // Wait for active readers. - if r != 0 && atomic.AddInt32(&rw.readerWait, r) != 0 { - semacquire(&rw.writerSem) - } - if RaceEnabled { - RaceEnable() - RaceAcquire(unsafe.Pointer(&rw.writerSem)) - } -} - -// Unlock unlocks rw for writing. -// -// Preconditions: -// - rw is locked for writing. -// -// +checklocksignore -func (rw *CrossGoroutineRWMutex) Unlock() { - if RaceEnabled { - RaceRelease(unsafe.Pointer(&rw.writerSem)) - RaceRelease(unsafe.Pointer(&rw.readerSem)) - RaceDisable() - } - // Announce to readers there is no active writer. - r := atomic.AddInt32(&rw.readerCount, rwmutexMaxReaders) - if r >= rwmutexMaxReaders { - panic("Unlock of unlocked RWMutex") - } - // Unblock blocked readers, if any. - for i := 0; i < int(r); i++ { - semrelease(&rw.readerSem, false, 0) - } - // Allow other writers to proceed. - rw.w.Unlock() - if RaceEnabled { - RaceEnable() - } -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// -// Preconditions: -// - rw is locked for writing. -// -// +checklocksignore -func (rw *CrossGoroutineRWMutex) DowngradeLock() { - if RaceEnabled { - RaceRelease(unsafe.Pointer(&rw.readerSem)) - RaceDisable() - } - // Announce to readers there is no active writer and one additional reader. - r := atomic.AddInt32(&rw.readerCount, rwmutexMaxReaders+1) - if r >= rwmutexMaxReaders+1 { - panic("DowngradeLock of unlocked RWMutex") - } - // Unblock blocked readers, if any. Note that this loop starts as 1 since r - // includes this goroutine. - for i := 1; i < int(r); i++ { - semrelease(&rw.readerSem, false, 0) - } - // Allow other writers to proceed to rw.w.Lock(). Note that they will still - // block on rw.writerSem since at least this reader exists, such that - // DowngradeLock() is atomic with the previous write lock. - rw.w.Unlock() - if RaceEnabled { - RaceEnable() - } -} - -// A RWMutex is a reader/writer mutual exclusion lock. The lock can be held by -// an arbitrary number of readers or a single writer. The zero value for a -// RWMutex is an unlocked mutex. -// -// A RWMutex must not be copied after first use. -// -// If a goroutine holds a RWMutex for reading and another goroutine might call -// Lock, no goroutine should expect to be able to acquire a read lock until the -// initial read lock is released. In particular, this prohibits recursive read -// locking. This is to ensure that the lock eventually becomes available; a -// blocked Lock call excludes new readers from acquiring the lock. -// -// A Mutex must be unlocked by the same goroutine that locked it. This -// invariant is enforced with the 'checklocks' build tag. -type RWMutex struct { - m CrossGoroutineRWMutex -} - -// TryRLock locks rw for reading. It returns true if it succeeds and false -// otherwise. It does not block. -// +checklocksignore -func (rw *RWMutex) TryRLock() bool { - // Note lock first to enforce proper locking even if unsuccessful. - noteLock(unsafe.Pointer(rw)) - locked := rw.m.TryRLock() - if !locked { - noteUnlock(unsafe.Pointer(rw)) - } - return locked -} - -// RLock locks rw for reading. -// -// It should not be used for recursive read locking; a blocked Lock call -// excludes new readers from acquiring the lock. See the documentation on the -// RWMutex type. -// +checklocksignore -func (rw *RWMutex) RLock() { - noteLock(unsafe.Pointer(rw)) - rw.m.RLock() -} - -// RUnlock undoes a single RLock call. -// -// Preconditions: -// - rw is locked for reading. -// - rw was locked by this goroutine. -// -// +checklocksignore -func (rw *RWMutex) RUnlock() { - rw.m.RUnlock() - noteUnlock(unsafe.Pointer(rw)) -} - -// TryLock locks rw for writing. It returns true if it succeeds and false -// otherwise. It does not block. -// +checklocksignore -func (rw *RWMutex) TryLock() bool { - // Note lock first to enforce proper locking even if unsuccessful. - noteLock(unsafe.Pointer(rw)) - locked := rw.m.TryLock() - if !locked { - noteUnlock(unsafe.Pointer(rw)) - } - return locked -} - -// Lock locks rw for writing. If the lock is already locked for reading or -// writing, Lock blocks until the lock is available. -// +checklocksignore -func (rw *RWMutex) Lock() { - noteLock(unsafe.Pointer(rw)) - rw.m.Lock() -} - -// Unlock unlocks rw for writing. -// -// Preconditions: -// - rw is locked for writing. -// - rw was locked by this goroutine. -// -// +checklocksignore -func (rw *RWMutex) Unlock() { - rw.m.Unlock() - noteUnlock(unsafe.Pointer(rw)) -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// -// Preconditions: -// - rw is locked for writing. -// -// +checklocksignore -func (rw *RWMutex) DowngradeLock() { - // No note change for DowngradeLock. - rw.m.DowngradeLock() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/seqcount.go b/vendor/gvisor.dev/gvisor/pkg/sync/seqcount.go deleted file mode 100644 index c90d2d9fa7..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/seqcount.go +++ /dev/null @@ -1,119 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package sync - -import ( - "sync/atomic" -) - -// SeqCount is a synchronization primitive for optimistic reader/writer -// synchronization in cases where readers can work with stale data and -// therefore do not need to block writers. -// -// Compared to sync/atomic.Value: -// -// - Mutation of SeqCount-protected data does not require memory allocation, -// whereas atomic.Value generally does. This is a significant advantage when -// writes are common. -// -// - Atomic reads of SeqCount-protected data require copying. This is a -// disadvantage when atomic reads are common. -// -// - SeqCount may be more flexible: correct use of SeqCount.ReadOk allows other -// operations to be made atomic with reads of SeqCount-protected data. -// -// - SeqCount is more cumbersome to use; atomic reads of SeqCount-protected -// data require instantiating function templates using go_generics (see -// seqatomic.go). -type SeqCount struct { - // epoch is incremented by BeginWrite and EndWrite, such that epoch is odd - // if a writer critical section is active, and a read from data protected - // by this SeqCount is atomic iff epoch is the same even value before and - // after the read. - epoch uint32 -} - -// SeqCountEpoch tracks writer critical sections in a SeqCount. -type SeqCountEpoch uint32 - -// BeginRead indicates the beginning of a reader critical section. Reader -// critical sections DO NOT BLOCK writer critical sections, so operations in a -// reader critical section MAY RACE with writer critical sections. Races are -// detected by ReadOk at the end of the reader critical section. Thus, the -// low-level structure of readers is generally: -// -// for { -// epoch := seq.BeginRead() -// // do something idempotent with seq-protected data -// if seq.ReadOk(epoch) { -// break -// } -// } -// -// However, since reader critical sections may race with writer critical -// sections, the Go race detector will (accurately) flag data races in readers -// using this pattern. Most users of SeqCount will need to use the -// SeqAtomicLoad function template in seqatomic.go. -func (s *SeqCount) BeginRead() SeqCountEpoch { - if epoch := atomic.LoadUint32(&s.epoch); epoch&1 == 0 { - return SeqCountEpoch(epoch) - } - return s.beginReadSlow() -} - -func (s *SeqCount) beginReadSlow() SeqCountEpoch { - i := 0 - for { - if canSpin(i) { - i++ - doSpin() - } else { - goyield() - } - if epoch := atomic.LoadUint32(&s.epoch); epoch&1 == 0 { - return SeqCountEpoch(epoch) - } - } -} - -// ReadOk returns true if the reader critical section initiated by a previous -// call to BeginRead() that returned epoch did not race with any writer critical -// sections. -// -// ReadOk may be called any number of times during a reader critical section. -// Reader critical sections do not need to be explicitly terminated; the last -// call to ReadOk is implicitly the end of the reader critical section. -func (s *SeqCount) ReadOk(epoch SeqCountEpoch) bool { - MemoryFenceReads() - return atomic.LoadUint32(&s.epoch) == uint32(epoch) -} - -// BeginWrite indicates the beginning of a writer critical section. -// -// SeqCount does not support concurrent writer critical sections; clients with -// concurrent writers must synchronize them using e.g. sync.Mutex. -func (s *SeqCount) BeginWrite() { - if epoch := atomic.AddUint32(&s.epoch, 1); epoch&1 == 0 { - panic("SeqCount.BeginWrite during writer critical section") - } -} - -// BeginWriteOk combines the semantics of ReadOk and BeginWrite. If the reader -// critical section initiated by a previous call to BeginRead() that returned -// epoch did not race with any writer critical sections, it begins a writer -// critical section and returns true. Otherwise it does nothing and returns -// false. -func (s *SeqCount) BeginWriteOk(epoch SeqCountEpoch) bool { - return atomic.CompareAndSwapUint32(&s.epoch, uint32(epoch), uint32(epoch)+1) -} - -// EndWrite ends the effect of a preceding BeginWrite or successful -// BeginWriteOk. -func (s *SeqCount) EndWrite() { - if epoch := atomic.AddUint32(&s.epoch, 1); epoch&1 != 0 { - panic("SeqCount.EndWrite outside writer critical section") - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/sync/sync.go b/vendor/gvisor.dev/gvisor/pkg/sync/sync.go deleted file mode 100644 index a9bf146db6..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/sync/sync.go +++ /dev/null @@ -1,9 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package sync provides synchronization primitives. -// -// +checkalignedignore -package sync diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/adapters/gonet/gonet.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/adapters/gonet/gonet.go deleted file mode 100644 index 9ad06ab276..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/adapters/gonet/gonet.go +++ /dev/null @@ -1,713 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package gonet provides a Go net package compatible wrapper for a tcpip stack. -package gonet - -import ( - "bytes" - "context" - "errors" - "fmt" - "io" - "net" - "time" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport/tcp" - "gvisor.dev/gvisor/pkg/tcpip/transport/udp" - "gvisor.dev/gvisor/pkg/waiter" -) - -var ( - errCanceled = errors.New("operation canceled") - errWouldBlock = errors.New("operation would block") -) - -// timeoutError is how the net package reports timeouts. -type timeoutError struct{} - -func (e *timeoutError) Error() string { return "i/o timeout" } -func (e *timeoutError) Timeout() bool { return true } -func (e *timeoutError) Temporary() bool { return true } - -// A TCPListener is a wrapper around a TCP tcpip.Endpoint that implements -// net.Listener. -type TCPListener struct { - stack *stack.Stack - ep tcpip.Endpoint - wq *waiter.Queue - cancelOnce sync.Once - cancel chan struct{} -} - -// NewTCPListener creates a new TCPListener from a listening tcpip.Endpoint. -func NewTCPListener(s *stack.Stack, wq *waiter.Queue, ep tcpip.Endpoint) *TCPListener { - return &TCPListener{ - stack: s, - ep: ep, - wq: wq, - cancel: make(chan struct{}), - } -} - -// maxListenBacklog is set to be reasonably high for most uses of gonet. Go net -// package uses the value in /proc/sys/net/core/somaxconn file in Linux as the -// default listen backlog. The value below matches the default in common linux -// distros. -// -// See: https://cs.opensource.google/go/go/+/refs/tags/go1.18.1:src/net/sock_linux.go;drc=refs%2Ftags%2Fgo1.18.1;l=66 -const maxListenBacklog = 4096 - -// ListenTCP creates a new TCPListener. -func ListenTCP(s *stack.Stack, addr tcpip.FullAddress, network tcpip.NetworkProtocolNumber) (*TCPListener, error) { - // Create a TCP endpoint, bind it, then start listening. - var wq waiter.Queue - ep, err := s.NewEndpoint(tcp.ProtocolNumber, network, &wq) - if err != nil { - return nil, errors.New(err.String()) - } - - if err := ep.Bind(addr); err != nil { - ep.Close() - return nil, &net.OpError{ - Op: "bind", - Net: "tcp", - Addr: fullToTCPAddr(addr), - Err: errors.New(err.String()), - } - } - - if err := ep.Listen(maxListenBacklog); err != nil { - ep.Close() - return nil, &net.OpError{ - Op: "listen", - Net: "tcp", - Addr: fullToTCPAddr(addr), - Err: errors.New(err.String()), - } - } - - return NewTCPListener(s, &wq, ep), nil -} - -// Close implements net.Listener.Close. -func (l *TCPListener) Close() error { - l.ep.Close() - return nil -} - -// Shutdown stops the HTTP server. -func (l *TCPListener) Shutdown() { - l.ep.Shutdown(tcpip.ShutdownWrite | tcpip.ShutdownRead) - l.cancelOnce.Do(func() { - close(l.cancel) // broadcast cancellation - }) -} - -// Addr implements net.Listener.Addr. -func (l *TCPListener) Addr() net.Addr { - a, err := l.ep.GetLocalAddress() - if err != nil { - return nil - } - return fullToTCPAddr(a) -} - -type deadlineTimer struct { - // mu protects the fields below. - mu sync.Mutex - - readTimer *time.Timer - readCancelCh chan struct{} - writeTimer *time.Timer - writeCancelCh chan struct{} -} - -func (d *deadlineTimer) init() { - d.readCancelCh = make(chan struct{}) - d.writeCancelCh = make(chan struct{}) -} - -func (d *deadlineTimer) readCancel() <-chan struct{} { - d.mu.Lock() - c := d.readCancelCh - d.mu.Unlock() - return c -} -func (d *deadlineTimer) writeCancel() <-chan struct{} { - d.mu.Lock() - c := d.writeCancelCh - d.mu.Unlock() - return c -} - -// setDeadline contains the shared logic for setting a deadline. -// -// cancelCh and timer must be pointers to deadlineTimer.readCancelCh and -// deadlineTimer.readTimer or deadlineTimer.writeCancelCh and -// deadlineTimer.writeTimer. -// -// setDeadline must only be called while holding d.mu. -func (d *deadlineTimer) setDeadline(cancelCh *chan struct{}, timer **time.Timer, t time.Time) { - if *timer != nil && !(*timer).Stop() { - *cancelCh = make(chan struct{}) - } - - // Create a new channel if we already closed it due to setting an already - // expired time. We won't race with the timer because we already handled - // that above. - select { - case <-*cancelCh: - *cancelCh = make(chan struct{}) - default: - } - - // "A zero value for t means I/O operations will not time out." - // - net.Conn.SetDeadline - if t.IsZero() { - *timer = nil - return - } - - timeout := t.Sub(time.Now()) - if timeout <= 0 { - close(*cancelCh) - return - } - - // Timer.Stop returns whether or not the AfterFunc has started, but - // does not indicate whether or not it has completed. Make a copy of - // the cancel channel to prevent this code from racing with the next - // call of setDeadline replacing *cancelCh. - ch := *cancelCh - *timer = time.AfterFunc(timeout, func() { - close(ch) - }) -} - -// SetReadDeadline implements net.Conn.SetReadDeadline and -// net.PacketConn.SetReadDeadline. -func (d *deadlineTimer) SetReadDeadline(t time.Time) error { - d.mu.Lock() - d.setDeadline(&d.readCancelCh, &d.readTimer, t) - d.mu.Unlock() - return nil -} - -// SetWriteDeadline implements net.Conn.SetWriteDeadline and -// net.PacketConn.SetWriteDeadline. -func (d *deadlineTimer) SetWriteDeadline(t time.Time) error { - d.mu.Lock() - d.setDeadline(&d.writeCancelCh, &d.writeTimer, t) - d.mu.Unlock() - return nil -} - -// SetDeadline implements net.Conn.SetDeadline and net.PacketConn.SetDeadline. -func (d *deadlineTimer) SetDeadline(t time.Time) error { - d.mu.Lock() - d.setDeadline(&d.readCancelCh, &d.readTimer, t) - d.setDeadline(&d.writeCancelCh, &d.writeTimer, t) - d.mu.Unlock() - return nil -} - -// A TCPConn is a wrapper around a TCP tcpip.Endpoint that implements the net.Conn -// interface. -type TCPConn struct { - deadlineTimer - - wq *waiter.Queue - ep tcpip.Endpoint - - // readMu serializes reads and implicitly protects read. - // - // Lock ordering: - // If both readMu and deadlineTimer.mu are to be used in a single - // request, readMu must be acquired before deadlineTimer.mu. - readMu sync.Mutex - - // read contains bytes that have been read from the endpoint, - // but haven't yet been returned. - read []byte -} - -// NewTCPConn creates a new TCPConn. -func NewTCPConn(wq *waiter.Queue, ep tcpip.Endpoint) *TCPConn { - c := &TCPConn{ - wq: wq, - ep: ep, - } - c.deadlineTimer.init() - return c -} - -// Accept implements net.Conn.Accept. -func (l *TCPListener) Accept() (net.Conn, error) { - n, wq, err := l.ep.Accept(nil) - - if _, ok := err.(*tcpip.ErrWouldBlock); ok { - // Create wait queue entry that notifies a channel. - waitEntry, notifyCh := waiter.NewChannelEntry(waiter.ReadableEvents) - l.wq.EventRegister(&waitEntry) - defer l.wq.EventUnregister(&waitEntry) - - for { - n, wq, err = l.ep.Accept(nil) - - if _, ok := err.(*tcpip.ErrWouldBlock); !ok { - break - } - - select { - case <-l.cancel: - return nil, errCanceled - case <-notifyCh: - } - } - } - - if err != nil { - return nil, &net.OpError{ - Op: "accept", - Net: "tcp", - Addr: l.Addr(), - Err: errors.New(err.String()), - } - } - - return NewTCPConn(wq, n), nil -} - -type opErrorer interface { - newOpError(op string, err error) *net.OpError -} - -// commonRead implements the common logic between net.Conn.Read and -// net.PacketConn.ReadFrom. -func commonRead(b []byte, ep tcpip.Endpoint, wq *waiter.Queue, deadline <-chan struct{}, addr *tcpip.FullAddress, errorer opErrorer) (int, error) { - select { - case <-deadline: - return 0, errorer.newOpError("read", &timeoutError{}) - default: - } - - w := tcpip.SliceWriter(b) - opts := tcpip.ReadOptions{NeedRemoteAddr: addr != nil} - res, err := ep.Read(&w, opts) - - if _, ok := err.(*tcpip.ErrWouldBlock); ok { - // Create wait queue entry that notifies a channel. - waitEntry, notifyCh := waiter.NewChannelEntry(waiter.ReadableEvents) - wq.EventRegister(&waitEntry) - defer wq.EventUnregister(&waitEntry) - for { - res, err = ep.Read(&w, opts) - if _, ok := err.(*tcpip.ErrWouldBlock); !ok { - break - } - select { - case <-deadline: - return 0, errorer.newOpError("read", &timeoutError{}) - case <-notifyCh: - } - } - } - - if _, ok := err.(*tcpip.ErrClosedForReceive); ok { - return 0, io.EOF - } - - if err != nil { - return 0, errorer.newOpError("read", errors.New(err.String())) - } - - if addr != nil { - *addr = res.RemoteAddr - } - return res.Count, nil -} - -// Read implements net.Conn.Read. -func (c *TCPConn) Read(b []byte) (int, error) { - c.readMu.Lock() - defer c.readMu.Unlock() - - deadline := c.readCancel() - - n, err := commonRead(b, c.ep, c.wq, deadline, nil, c) - if n != 0 { - c.ep.ModerateRecvBuf(n) - } - return n, err -} - -// Write implements net.Conn.Write. -func (c *TCPConn) Write(b []byte) (int, error) { - deadline := c.writeCancel() - - // Check if deadlineTimer has already expired. - select { - case <-deadline: - return 0, c.newOpError("write", &timeoutError{}) - default: - } - - // We must handle two soft failure conditions simultaneously: - // 1. Write may write nothing and return *tcpip.ErrWouldBlock. - // If this happens, we need to register for notifications if we have - // not already and wait to try again. - // 2. Write may write fewer than the full number of bytes and return - // without error. In this case we need to try writing the remaining - // bytes again. I do not need to register for notifications. - // - // What is more, these two soft failure conditions can be interspersed. - // There is no guarantee that all of the condition #1s will occur before - // all of the condition #2s or visa-versa. - var ( - r bytes.Reader - nbytes int - entry waiter.Entry - ch <-chan struct{} - ) - for nbytes != len(b) { - r.Reset(b[nbytes:]) - n, err := c.ep.Write(&r, tcpip.WriteOptions{}) - nbytes += int(n) - switch err.(type) { - case nil: - case *tcpip.ErrWouldBlock: - if ch == nil { - entry, ch = waiter.NewChannelEntry(waiter.WritableEvents) - c.wq.EventRegister(&entry) - defer c.wq.EventUnregister(&entry) - } else { - // Don't wait immediately after registration in case more data - // became available between when we last checked and when we setup - // the notification. - select { - case <-deadline: - return nbytes, c.newOpError("write", &timeoutError{}) - case <-ch: - continue - } - } - default: - return nbytes, c.newOpError("write", errors.New(err.String())) - } - } - return nbytes, nil -} - -// Close implements net.Conn.Close. -func (c *TCPConn) Close() error { - c.ep.Close() - return nil -} - -// CloseRead shuts down the reading side of the TCP connection. Most callers -// should just use Close. -// -// A TCP Half-Close is performed the same as CloseRead for *net.TCPConn. -func (c *TCPConn) CloseRead() error { - if terr := c.ep.Shutdown(tcpip.ShutdownRead); terr != nil { - return c.newOpError("close", errors.New(terr.String())) - } - return nil -} - -// CloseWrite shuts down the writing side of the TCP connection. Most callers -// should just use Close. -// -// A TCP Half-Close is performed the same as CloseWrite for *net.TCPConn. -func (c *TCPConn) CloseWrite() error { - if terr := c.ep.Shutdown(tcpip.ShutdownWrite); terr != nil { - return c.newOpError("close", errors.New(terr.String())) - } - return nil -} - -// LocalAddr implements net.Conn.LocalAddr. -func (c *TCPConn) LocalAddr() net.Addr { - a, err := c.ep.GetLocalAddress() - if err != nil { - return nil - } - return fullToTCPAddr(a) -} - -// RemoteAddr implements net.Conn.RemoteAddr. -func (c *TCPConn) RemoteAddr() net.Addr { - a, err := c.ep.GetRemoteAddress() - if err != nil { - return nil - } - return fullToTCPAddr(a) -} - -func (c *TCPConn) newOpError(op string, err error) *net.OpError { - return &net.OpError{ - Op: op, - Net: "tcp", - Source: c.LocalAddr(), - Addr: c.RemoteAddr(), - Err: err, - } -} - -func fullToTCPAddr(addr tcpip.FullAddress) *net.TCPAddr { - return &net.TCPAddr{IP: net.IP(addr.Addr.AsSlice()), Port: int(addr.Port)} -} - -func fullToUDPAddr(addr tcpip.FullAddress) *net.UDPAddr { - return &net.UDPAddr{IP: net.IP(addr.Addr.AsSlice()), Port: int(addr.Port)} -} - -// DialTCP creates a new TCPConn connected to the specified address. -func DialTCP(s *stack.Stack, addr tcpip.FullAddress, network tcpip.NetworkProtocolNumber) (*TCPConn, error) { - return DialContextTCP(context.Background(), s, addr, network) -} - -// DialTCPWithBind creates a new TCPConn connected to the specified -// remoteAddress with its local address bound to localAddr. -func DialTCPWithBind(ctx context.Context, s *stack.Stack, localAddr, remoteAddr tcpip.FullAddress, network tcpip.NetworkProtocolNumber) (*TCPConn, error) { - // Create TCP endpoint, then connect. - var wq waiter.Queue - ep, err := s.NewEndpoint(tcp.ProtocolNumber, network, &wq) - if err != nil { - return nil, errors.New(err.String()) - } - - // Create wait queue entry that notifies a channel. - // - // We do this unconditionally as Connect will always return an error. - waitEntry, notifyCh := waiter.NewChannelEntry(waiter.WritableEvents) - wq.EventRegister(&waitEntry) - defer wq.EventUnregister(&waitEntry) - - select { - case <-ctx.Done(): - return nil, ctx.Err() - default: - } - - // Bind before connect if requested. - if localAddr != (tcpip.FullAddress{}) { - if err = ep.Bind(localAddr); err != nil { - return nil, fmt.Errorf("ep.Bind(%+v) = %s", localAddr, err) - } - } - - err = ep.Connect(remoteAddr) - if _, ok := err.(*tcpip.ErrConnectStarted); ok { - select { - case <-ctx.Done(): - ep.Close() - return nil, ctx.Err() - case <-notifyCh: - } - - err = ep.LastError() - } - if err != nil { - ep.Close() - return nil, &net.OpError{ - Op: "connect", - Net: "tcp", - Addr: fullToTCPAddr(remoteAddr), - Err: errors.New(err.String()), - } - } - - return NewTCPConn(&wq, ep), nil -} - -// DialContextTCP creates a new TCPConn connected to the specified address -// with the option of adding cancellation and timeouts. -func DialContextTCP(ctx context.Context, s *stack.Stack, addr tcpip.FullAddress, network tcpip.NetworkProtocolNumber) (*TCPConn, error) { - return DialTCPWithBind(ctx, s, tcpip.FullAddress{} /* localAddr */, addr /* remoteAddr */, network) -} - -// A UDPConn is a wrapper around a UDP tcpip.Endpoint that implements -// net.Conn and net.PacketConn. -type UDPConn struct { - deadlineTimer - - ep tcpip.Endpoint - wq *waiter.Queue -} - -// NewUDPConn creates a new UDPConn. -func NewUDPConn(wq *waiter.Queue, ep tcpip.Endpoint) *UDPConn { - c := &UDPConn{ - ep: ep, - wq: wq, - } - c.deadlineTimer.init() - return c -} - -// DialUDP creates a new UDPConn. -// -// If laddr is nil, a local address is automatically chosen. -// -// If raddr is nil, the UDPConn is left unconnected. -func DialUDP(s *stack.Stack, laddr, raddr *tcpip.FullAddress, network tcpip.NetworkProtocolNumber) (*UDPConn, error) { - var wq waiter.Queue - ep, err := s.NewEndpoint(udp.ProtocolNumber, network, &wq) - if err != nil { - return nil, errors.New(err.String()) - } - - if laddr != nil { - if err := ep.Bind(*laddr); err != nil { - ep.Close() - return nil, &net.OpError{ - Op: "bind", - Net: "udp", - Addr: fullToUDPAddr(*laddr), - Err: errors.New(err.String()), - } - } - } - - c := NewUDPConn(&wq, ep) - - if raddr != nil { - if err := c.ep.Connect(*raddr); err != nil { - c.ep.Close() - return nil, &net.OpError{ - Op: "connect", - Net: "udp", - Addr: fullToUDPAddr(*raddr), - Err: errors.New(err.String()), - } - } - } - - return c, nil -} - -func (c *UDPConn) newOpError(op string, err error) *net.OpError { - return c.newRemoteOpError(op, nil, err) -} - -func (c *UDPConn) newRemoteOpError(op string, remote net.Addr, err error) *net.OpError { - return &net.OpError{ - Op: op, - Net: "udp", - Source: c.LocalAddr(), - Addr: remote, - Err: err, - } -} - -// RemoteAddr implements net.Conn.RemoteAddr. -func (c *UDPConn) RemoteAddr() net.Addr { - a, err := c.ep.GetRemoteAddress() - if err != nil { - return nil - } - return fullToUDPAddr(a) -} - -// Read implements net.Conn.Read -func (c *UDPConn) Read(b []byte) (int, error) { - bytesRead, _, err := c.ReadFrom(b) - return bytesRead, err -} - -// ReadFrom implements net.PacketConn.ReadFrom. -func (c *UDPConn) ReadFrom(b []byte) (int, net.Addr, error) { - deadline := c.readCancel() - - var addr tcpip.FullAddress - n, err := commonRead(b, c.ep, c.wq, deadline, &addr, c) - if err != nil { - return 0, nil, err - } - return n, fullToUDPAddr(addr), nil -} - -func (c *UDPConn) Write(b []byte) (int, error) { - return c.WriteTo(b, nil) -} - -// WriteTo implements net.PacketConn.WriteTo. -func (c *UDPConn) WriteTo(b []byte, addr net.Addr) (int, error) { - deadline := c.writeCancel() - - // Check if deadline has already expired. - select { - case <-deadline: - return 0, c.newRemoteOpError("write", addr, &timeoutError{}) - default: - } - - // If we're being called by Write, there is no addr - writeOptions := tcpip.WriteOptions{} - if addr != nil { - ua := addr.(*net.UDPAddr) - writeOptions.To = &tcpip.FullAddress{ - Addr: tcpip.AddrFromSlice(ua.IP), - Port: uint16(ua.Port), - } - } - - var r bytes.Reader - r.Reset(b) - n, err := c.ep.Write(&r, writeOptions) - if _, ok := err.(*tcpip.ErrWouldBlock); ok { - // Create wait queue entry that notifies a channel. - waitEntry, notifyCh := waiter.NewChannelEntry(waiter.WritableEvents) - c.wq.EventRegister(&waitEntry) - defer c.wq.EventUnregister(&waitEntry) - for { - select { - case <-deadline: - return int(n), c.newRemoteOpError("write", addr, &timeoutError{}) - case <-notifyCh: - } - - n, err = c.ep.Write(&r, writeOptions) - if _, ok := err.(*tcpip.ErrWouldBlock); !ok { - break - } - } - } - - if err == nil { - return int(n), nil - } - - return int(n), c.newRemoteOpError("write", addr, errors.New(err.String())) -} - -// Close implements net.PacketConn.Close. -func (c *UDPConn) Close() error { - c.ep.Close() - return nil -} - -// LocalAddr implements net.PacketConn.LocalAddr. -func (c *UDPConn) LocalAddr() net.Addr { - a, err := c.ep.GetLocalAddress() - if err != nil { - return nil - } - return fullToUDPAddr(a) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/adapters/gonet/gonet_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/adapters/gonet/gonet_state_autogen.go deleted file mode 100644 index 7a5c5419ea..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/adapters/gonet/gonet_state_autogen.go +++ /dev/null @@ -1,3 +0,0 @@ -// automatically generated by stateify. - -package gonet diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/checksum/checksum.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/checksum/checksum.go deleted file mode 100644 index 5d4e1170ef..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/checksum/checksum.go +++ /dev/null @@ -1,68 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package checksum provides the implementation of the encoding and decoding of -// network protocol headers. -package checksum - -import ( - "encoding/binary" -) - -// Size is the size of a checksum. -// -// The checksum is held in a uint16 which is 2 bytes. -const Size = 2 - -// Put puts the checksum in the provided byte slice. -func Put(b []byte, xsum uint16) { - binary.BigEndian.PutUint16(b, xsum) -} - -// Checksum calculates the checksum (as defined in RFC 1071) of the bytes in the -// given byte array. This function uses an optimized version of the checksum -// algorithm. -// -// The initial checksum must have been computed on an even number of bytes. -func Checksum(buf []byte, initial uint16) uint16 { - s, _ := calculateChecksum(buf, false, initial) - return s -} - -// Checksumer calculates checksum defined in RFC 1071. -type Checksumer struct { - sum uint16 - odd bool -} - -// Add adds b to checksum. -func (c *Checksumer) Add(b []byte) { - if len(b) > 0 { - c.sum, c.odd = calculateChecksum(b, c.odd, c.sum) - } -} - -// Checksum returns the latest checksum value. -func (c *Checksumer) Checksum() uint16 { - return c.sum -} - -// Combine combines the two uint16 to form their checksum. This is done -// by adding them and the carry. -// -// Note that checksum a must have been computed on an even number of bytes. -func Combine(a, b uint16) uint16 { - v := uint32(a) + uint32(b) - return uint16(v + v>>16) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/checksum/checksum_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/checksum/checksum_state_autogen.go deleted file mode 100644 index 936aef7495..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/checksum/checksum_state_autogen.go +++ /dev/null @@ -1,3 +0,0 @@ -// automatically generated by stateify. - -package checksum diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/checksum/checksum_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/checksum/checksum_unsafe.go deleted file mode 100644 index 66b7ab6796..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/checksum/checksum_unsafe.go +++ /dev/null @@ -1,182 +0,0 @@ -// Copyright 2023 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package checksum - -import ( - "encoding/binary" - "math/bits" - "unsafe" -) - -// Note: odd indicates whether initial is a partial checksum over an odd number -// of bytes. -func calculateChecksum(buf []byte, odd bool, initial uint16) (uint16, bool) { - // Use a larger-than-uint16 accumulator to benefit from parallel summation - // as described in RFC 1071 1.2.C. - acc := uint64(initial) - - // Handle an odd number of previously-summed bytes, and get the return - // value for odd. - if odd { - acc += uint64(buf[0]) - buf = buf[1:] - } - odd = len(buf)&1 != 0 - - // Aligning &buf[0] below is much simpler if len(buf) >= 8; special-case - // smaller bufs. - if len(buf) < 8 { - if len(buf) >= 4 { - acc += (uint64(buf[0]) << 8) + uint64(buf[1]) - acc += (uint64(buf[2]) << 8) + uint64(buf[3]) - buf = buf[4:] - } - if len(buf) >= 2 { - acc += (uint64(buf[0]) << 8) + uint64(buf[1]) - buf = buf[2:] - } - if len(buf) >= 1 { - acc += uint64(buf[0]) << 8 - // buf = buf[1:] is skipped because it's unused and nogo will - // complain. - } - return reduce(acc), odd - } - - // On little-endian architectures, multi-byte loads from buf will load - // bytes in the wrong order. Rather than byte-swap after each load (slow), - // we byte-swap the accumulator before summing any bytes and byte-swap it - // back before returning, which still produces the correct result as - // described in RFC 1071 1.2.B "Byte Order Independence". - // - // acc is at most a uint16 + a uint8, so its upper 32 bits must be 0s. We - // preserve this property by byte-swapping only the lower 32 bits of acc, - // so that additions to acc performed during alignment can't overflow. - acc = uint64(bswapIfLittleEndian32(uint32(acc))) - - // Align &buf[0] to an 8-byte boundary. - bswapped := false - if sliceAddr(buf)&1 != 0 { - // Compute the rest of the partial checksum with bytes swapped, and - // swap back before returning; see the last paragraph of - // RFC 1071 1.2.B. - acc = uint64(bits.ReverseBytes32(uint32(acc))) - bswapped = true - // No `<< 8` here due to the byte swap we just did. - acc += uint64(bswapIfLittleEndian16(uint16(buf[0]))) - buf = buf[1:] - } - if sliceAddr(buf)&2 != 0 { - acc += uint64(*(*uint16)(unsafe.Pointer(&buf[0]))) - buf = buf[2:] - } - if sliceAddr(buf)&4 != 0 { - acc += uint64(*(*uint32)(unsafe.Pointer(&buf[0]))) - buf = buf[4:] - } - - // Sum 64 bytes at a time. Beyond this point, additions to acc may - // overflow, so we have to handle carrying. - for len(buf) >= 64 { - var carry uint64 - acc, carry = bits.Add64(acc, *(*uint64)(unsafe.Pointer(&buf[0])), 0) - acc, carry = bits.Add64(acc, *(*uint64)(unsafe.Pointer(&buf[8])), carry) - acc, carry = bits.Add64(acc, *(*uint64)(unsafe.Pointer(&buf[16])), carry) - acc, carry = bits.Add64(acc, *(*uint64)(unsafe.Pointer(&buf[24])), carry) - acc, carry = bits.Add64(acc, *(*uint64)(unsafe.Pointer(&buf[32])), carry) - acc, carry = bits.Add64(acc, *(*uint64)(unsafe.Pointer(&buf[40])), carry) - acc, carry = bits.Add64(acc, *(*uint64)(unsafe.Pointer(&buf[48])), carry) - acc, carry = bits.Add64(acc, *(*uint64)(unsafe.Pointer(&buf[56])), carry) - acc, _ = bits.Add64(acc, 0, carry) - buf = buf[64:] - } - - // Sum the remaining 0-63 bytes. - if len(buf) >= 32 { - var carry uint64 - acc, carry = bits.Add64(acc, *(*uint64)(unsafe.Pointer(&buf[0])), 0) - acc, carry = bits.Add64(acc, *(*uint64)(unsafe.Pointer(&buf[8])), carry) - acc, carry = bits.Add64(acc, *(*uint64)(unsafe.Pointer(&buf[16])), carry) - acc, carry = bits.Add64(acc, *(*uint64)(unsafe.Pointer(&buf[24])), carry) - acc, _ = bits.Add64(acc, 0, carry) - buf = buf[32:] - } - if len(buf) >= 16 { - var carry uint64 - acc, carry = bits.Add64(acc, *(*uint64)(unsafe.Pointer(&buf[0])), 0) - acc, carry = bits.Add64(acc, *(*uint64)(unsafe.Pointer(&buf[8])), carry) - acc, _ = bits.Add64(acc, 0, carry) - buf = buf[16:] - } - if len(buf) >= 8 { - var carry uint64 - acc, carry = bits.Add64(acc, *(*uint64)(unsafe.Pointer(&buf[0])), 0) - acc, _ = bits.Add64(acc, 0, carry) - buf = buf[8:] - } - if len(buf) >= 4 { - var carry uint64 - acc, carry = bits.Add64(acc, uint64(*(*uint32)(unsafe.Pointer(&buf[0]))), 0) - acc, _ = bits.Add64(acc, 0, carry) - buf = buf[4:] - } - if len(buf) >= 2 { - var carry uint64 - acc, carry = bits.Add64(acc, uint64(*(*uint16)(unsafe.Pointer(&buf[0]))), 0) - acc, _ = bits.Add64(acc, 0, carry) - buf = buf[2:] - } - if len(buf) >= 1 { - // bswapIfBigEndian16(buf[0]) == bswapIfLittleEndian16(buf[0]<<8). - var carry uint64 - acc, carry = bits.Add64(acc, uint64(bswapIfBigEndian16(uint16(buf[0]))), 0) - acc, _ = bits.Add64(acc, 0, carry) - // buf = buf[1:] is skipped because it's unused and nogo will complain. - } - - // Reduce the checksum to 16 bits and undo byte swaps before returning. - acc16 := bswapIfLittleEndian16(reduce(acc)) - if bswapped { - acc16 = bits.ReverseBytes16(acc16) - } - return acc16, odd -} - -func reduce(acc uint64) uint16 { - // Ideally we would do: - // return uint16(acc>>48) +' uint16(acc>>32) +' uint16(acc>>16) +' uint16(acc) - // for more instruction-level parallelism; however, there is no - // bits.Add16(). - acc = (acc >> 32) + (acc & 0xffff_ffff) // at most 0x1_ffff_fffe - acc32 := uint32(acc>>32 + acc) // at most 0xffff_ffff - acc32 = (acc32 >> 16) + (acc32 & 0xffff) // at most 0x1_fffe - return uint16(acc32>>16 + acc32) // at most 0xffff -} - -func bswapIfLittleEndian32(val uint32) uint32 { - return binary.BigEndian.Uint32((*[4]byte)(unsafe.Pointer(&val))[:]) -} - -func bswapIfLittleEndian16(val uint16) uint16 { - return binary.BigEndian.Uint16((*[2]byte)(unsafe.Pointer(&val))[:]) -} - -func bswapIfBigEndian16(val uint16) uint16 { - return binary.LittleEndian.Uint16((*[2]byte)(unsafe.Pointer(&val))[:]) -} - -func sliceAddr(buf []byte) uintptr { - return uintptr(unsafe.Pointer(unsafe.SliceData(buf))) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/checksum/checksum_unsafe_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/checksum/checksum_unsafe_state_autogen.go deleted file mode 100644 index 936aef7495..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/checksum/checksum_unsafe_state_autogen.go +++ /dev/null @@ -1,3 +0,0 @@ -// automatically generated by stateify. - -package checksum diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/errors.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/errors.go deleted file mode 100644 index 0df3d8857d..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/errors.go +++ /dev/null @@ -1,623 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcpip - -import ( - "fmt" -) - -// Error represents an error in the netstack error space. -// -// The error interface is intentionally omitted to avoid loss of type -// information that would occur if these errors were passed as error. -type Error interface { - isError() - - // IgnoreStats indicates whether this error should be included in failure - // counts in tcpip.Stats structs. - IgnoreStats() bool - - fmt.Stringer -} - -const maxErrno = 134 - -// LINT.IfChange - -// ErrAborted indicates the operation was aborted. -// -// +stateify savable -type ErrAborted struct{} - -func (*ErrAborted) isError() {} - -// IgnoreStats implements Error. -func (*ErrAborted) IgnoreStats() bool { - return false -} -func (*ErrAborted) String() string { - return "operation aborted" -} - -// ErrAddressFamilyNotSupported indicates the operation does not support the -// given address family. -// -// +stateify savable -type ErrAddressFamilyNotSupported struct{} - -func (*ErrAddressFamilyNotSupported) isError() {} - -// IgnoreStats implements Error. -func (*ErrAddressFamilyNotSupported) IgnoreStats() bool { - return false -} -func (*ErrAddressFamilyNotSupported) String() string { - return "address family not supported by protocol" -} - -// ErrAlreadyBound indicates the endpoint is already bound. -// -// +stateify savable -type ErrAlreadyBound struct{} - -func (*ErrAlreadyBound) isError() {} - -// IgnoreStats implements Error. -func (*ErrAlreadyBound) IgnoreStats() bool { - return true -} -func (*ErrAlreadyBound) String() string { return "endpoint already bound" } - -// ErrAlreadyConnected indicates the endpoint is already connected. -// -// +stateify savable -type ErrAlreadyConnected struct{} - -func (*ErrAlreadyConnected) isError() {} - -// IgnoreStats implements Error. -func (*ErrAlreadyConnected) IgnoreStats() bool { - return true -} -func (*ErrAlreadyConnected) String() string { return "endpoint is already connected" } - -// ErrAlreadyConnecting indicates the endpoint is already connecting. -// -// +stateify savable -type ErrAlreadyConnecting struct{} - -func (*ErrAlreadyConnecting) isError() {} - -// IgnoreStats implements Error. -func (*ErrAlreadyConnecting) IgnoreStats() bool { - return true -} -func (*ErrAlreadyConnecting) String() string { return "endpoint is already connecting" } - -// ErrBadAddress indicates a bad address was provided. -// -// +stateify savable -type ErrBadAddress struct{} - -func (*ErrBadAddress) isError() {} - -// IgnoreStats implements Error. -func (*ErrBadAddress) IgnoreStats() bool { - return false -} -func (*ErrBadAddress) String() string { return "bad address" } - -// ErrBadBuffer indicates a bad buffer was provided. -// -// +stateify savable -type ErrBadBuffer struct{} - -func (*ErrBadBuffer) isError() {} - -// IgnoreStats implements Error. -func (*ErrBadBuffer) IgnoreStats() bool { - return false -} -func (*ErrBadBuffer) String() string { return "bad buffer" } - -// ErrBadLocalAddress indicates a bad local address was provided. -// -// +stateify savable -type ErrBadLocalAddress struct{} - -func (*ErrBadLocalAddress) isError() {} - -// IgnoreStats implements Error. -func (*ErrBadLocalAddress) IgnoreStats() bool { - return false -} -func (*ErrBadLocalAddress) String() string { return "bad local address" } - -// ErrBroadcastDisabled indicates broadcast is not enabled on the endpoint. -// -// +stateify savable -type ErrBroadcastDisabled struct{} - -func (*ErrBroadcastDisabled) isError() {} - -// IgnoreStats implements Error. -func (*ErrBroadcastDisabled) IgnoreStats() bool { - return false -} -func (*ErrBroadcastDisabled) String() string { return "broadcast socket option disabled" } - -// ErrClosedForReceive indicates the endpoint is closed for incoming data. -// -// +stateify savable -type ErrClosedForReceive struct{} - -func (*ErrClosedForReceive) isError() {} - -// IgnoreStats implements Error. -func (*ErrClosedForReceive) IgnoreStats() bool { - return false -} -func (*ErrClosedForReceive) String() string { return "endpoint is closed for receive" } - -// ErrClosedForSend indicates the endpoint is closed for outgoing data. -// -// +stateify savable -type ErrClosedForSend struct{} - -func (*ErrClosedForSend) isError() {} - -// IgnoreStats implements Error. -func (*ErrClosedForSend) IgnoreStats() bool { - return false -} -func (*ErrClosedForSend) String() string { return "endpoint is closed for send" } - -// ErrConnectStarted indicates the endpoint is connecting asynchronously. -// -// +stateify savable -type ErrConnectStarted struct{} - -func (*ErrConnectStarted) isError() {} - -// IgnoreStats implements Error. -func (*ErrConnectStarted) IgnoreStats() bool { - return true -} -func (*ErrConnectStarted) String() string { return "connection attempt started" } - -// ErrConnectionAborted indicates the connection was aborted. -// -// +stateify savable -type ErrConnectionAborted struct{} - -func (*ErrConnectionAborted) isError() {} - -// IgnoreStats implements Error. -func (*ErrConnectionAborted) IgnoreStats() bool { - return false -} -func (*ErrConnectionAborted) String() string { return "connection aborted" } - -// ErrConnectionRefused indicates the connection was refused. -// -// +stateify savable -type ErrConnectionRefused struct{} - -func (*ErrConnectionRefused) isError() {} - -// IgnoreStats implements Error. -func (*ErrConnectionRefused) IgnoreStats() bool { - return false -} -func (*ErrConnectionRefused) String() string { return "connection was refused" } - -// ErrConnectionReset indicates the connection was reset. -// -// +stateify savable -type ErrConnectionReset struct{} - -func (*ErrConnectionReset) isError() {} - -// IgnoreStats implements Error. -func (*ErrConnectionReset) IgnoreStats() bool { - return false -} -func (*ErrConnectionReset) String() string { return "connection reset by peer" } - -// ErrDestinationRequired indicates the operation requires a destination -// address, and one was not provided. -// -// +stateify savable -type ErrDestinationRequired struct{} - -func (*ErrDestinationRequired) isError() {} - -// IgnoreStats implements Error. -func (*ErrDestinationRequired) IgnoreStats() bool { - return false -} -func (*ErrDestinationRequired) String() string { return "destination address is required" } - -// ErrDuplicateAddress indicates the operation encountered a duplicate address. -// -// +stateify savable -type ErrDuplicateAddress struct{} - -func (*ErrDuplicateAddress) isError() {} - -// IgnoreStats implements Error. -func (*ErrDuplicateAddress) IgnoreStats() bool { - return false -} -func (*ErrDuplicateAddress) String() string { return "duplicate address" } - -// ErrDuplicateNICID indicates the operation encountered a duplicate NIC ID. -// -// +stateify savable -type ErrDuplicateNICID struct{} - -func (*ErrDuplicateNICID) isError() {} - -// IgnoreStats implements Error. -func (*ErrDuplicateNICID) IgnoreStats() bool { - return false -} -func (*ErrDuplicateNICID) String() string { return "duplicate nic id" } - -// ErrInvalidNICID indicates the operation used an invalid NIC ID. -// -// +stateify savable -type ErrInvalidNICID struct{} - -func (*ErrInvalidNICID) isError() {} - -// IgnoreStats implements Error. -func (*ErrInvalidNICID) IgnoreStats() bool { - return false -} -func (*ErrInvalidNICID) String() string { return "invalid nic id" } - -// ErrInvalidEndpointState indicates the endpoint is in an invalid state. -// -// +stateify savable -type ErrInvalidEndpointState struct{} - -func (*ErrInvalidEndpointState) isError() {} - -// IgnoreStats implements Error. -func (*ErrInvalidEndpointState) IgnoreStats() bool { - return false -} -func (*ErrInvalidEndpointState) String() string { return "endpoint is in invalid state" } - -// ErrInvalidOptionValue indicates an invalid option value was provided. -// -// +stateify savable -type ErrInvalidOptionValue struct{} - -func (*ErrInvalidOptionValue) isError() {} - -// IgnoreStats implements Error. -func (*ErrInvalidOptionValue) IgnoreStats() bool { - return false -} -func (*ErrInvalidOptionValue) String() string { return "invalid option value specified" } - -// ErrInvalidPortRange indicates an attempt to set an invalid port range. -// -// +stateify savable -type ErrInvalidPortRange struct{} - -func (*ErrInvalidPortRange) isError() {} - -// IgnoreStats implements Error. -func (*ErrInvalidPortRange) IgnoreStats() bool { - return true -} -func (*ErrInvalidPortRange) String() string { return "invalid port range" } - -// ErrMalformedHeader indicates the operation encountered a malformed header. -// -// +stateify savable -type ErrMalformedHeader struct{} - -func (*ErrMalformedHeader) isError() {} - -// IgnoreStats implements Error. -func (*ErrMalformedHeader) IgnoreStats() bool { - return false -} -func (*ErrMalformedHeader) String() string { return "header is malformed" } - -// ErrMessageTooLong indicates the operation encountered a message whose length -// exceeds the maximum permitted. -// -// +stateify savable -type ErrMessageTooLong struct{} - -func (*ErrMessageTooLong) isError() {} - -// IgnoreStats implements Error. -func (*ErrMessageTooLong) IgnoreStats() bool { - return false -} -func (*ErrMessageTooLong) String() string { return "message too long" } - -// ErrNetworkUnreachable indicates the operation is not able to reach the -// destination network. -// -// +stateify savable -type ErrNetworkUnreachable struct{} - -func (*ErrNetworkUnreachable) isError() {} - -// IgnoreStats implements Error. -func (*ErrNetworkUnreachable) IgnoreStats() bool { - return false -} -func (*ErrNetworkUnreachable) String() string { return "network is unreachable" } - -// ErrNoBufferSpace indicates no buffer space is available. -// -// +stateify savable -type ErrNoBufferSpace struct{} - -func (*ErrNoBufferSpace) isError() {} - -// IgnoreStats implements Error. -func (*ErrNoBufferSpace) IgnoreStats() bool { - return false -} -func (*ErrNoBufferSpace) String() string { return "no buffer space available" } - -// ErrNoPortAvailable indicates no port could be allocated for the operation. -// -// +stateify savable -type ErrNoPortAvailable struct{} - -func (*ErrNoPortAvailable) isError() {} - -// IgnoreStats implements Error. -func (*ErrNoPortAvailable) IgnoreStats() bool { - return false -} -func (*ErrNoPortAvailable) String() string { return "no ports are available" } - -// ErrHostUnreachable indicates that a destination host could not be -// reached. -// -// +stateify savable -type ErrHostUnreachable struct{} - -func (*ErrHostUnreachable) isError() {} - -// IgnoreStats implements Error. -func (*ErrHostUnreachable) IgnoreStats() bool { - return false -} -func (*ErrHostUnreachable) String() string { return "no route to host" } - -// ErrHostDown indicates that a destination host is down. -// -// +stateify savable -type ErrHostDown struct{} - -func (*ErrHostDown) isError() {} - -// IgnoreStats implements Error. -func (*ErrHostDown) IgnoreStats() bool { - return false -} -func (*ErrHostDown) String() string { return "host is down" } - -// ErrNoNet indicates that the host is not on the network. -// -// +stateify savable -type ErrNoNet struct{} - -func (*ErrNoNet) isError() {} - -// IgnoreStats implements Error. -func (*ErrNoNet) IgnoreStats() bool { - return false -} -func (*ErrNoNet) String() string { return "machine is not on the network" } - -// ErrNoSuchFile is used to indicate that ENOENT should be returned the to -// calling application. -// -// +stateify savable -type ErrNoSuchFile struct{} - -func (*ErrNoSuchFile) isError() {} - -// IgnoreStats implements Error. -func (*ErrNoSuchFile) IgnoreStats() bool { - return false -} -func (*ErrNoSuchFile) String() string { return "no such file" } - -// ErrNotConnected indicates the endpoint is not connected. -// -// +stateify savable -type ErrNotConnected struct{} - -func (*ErrNotConnected) isError() {} - -// IgnoreStats implements Error. -func (*ErrNotConnected) IgnoreStats() bool { - return false -} -func (*ErrNotConnected) String() string { return "endpoint not connected" } - -// ErrNotPermitted indicates the operation is not permitted. -// -// +stateify savable -type ErrNotPermitted struct{} - -func (*ErrNotPermitted) isError() {} - -// IgnoreStats implements Error. -func (*ErrNotPermitted) IgnoreStats() bool { - return false -} -func (*ErrNotPermitted) String() string { return "operation not permitted" } - -// ErrNotSupported indicates the operation is not supported. -// -// +stateify savable -type ErrNotSupported struct{} - -func (*ErrNotSupported) isError() {} - -// IgnoreStats implements Error. -func (*ErrNotSupported) IgnoreStats() bool { - return false -} -func (*ErrNotSupported) String() string { return "operation not supported" } - -// ErrPortInUse indicates the provided port is in use. -// -// +stateify savable -type ErrPortInUse struct{} - -func (*ErrPortInUse) isError() {} - -// IgnoreStats implements Error. -func (*ErrPortInUse) IgnoreStats() bool { - return false -} -func (*ErrPortInUse) String() string { return "port is in use" } - -// ErrQueueSizeNotSupported indicates the endpoint does not allow queue size -// operation. -// -// +stateify savable -type ErrQueueSizeNotSupported struct{} - -func (*ErrQueueSizeNotSupported) isError() {} - -// IgnoreStats implements Error. -func (*ErrQueueSizeNotSupported) IgnoreStats() bool { - return false -} -func (*ErrQueueSizeNotSupported) String() string { return "queue size querying not supported" } - -// ErrTimeout indicates the operation timed out. -// -// +stateify savable -type ErrTimeout struct{} - -func (*ErrTimeout) isError() {} - -// IgnoreStats implements Error. -func (*ErrTimeout) IgnoreStats() bool { - return false -} -func (*ErrTimeout) String() string { return "operation timed out" } - -// ErrUnknownDevice indicates an unknown device identifier was provided. -// -// +stateify savable -type ErrUnknownDevice struct{} - -func (*ErrUnknownDevice) isError() {} - -// IgnoreStats implements Error. -func (*ErrUnknownDevice) IgnoreStats() bool { - return false -} -func (*ErrUnknownDevice) String() string { return "unknown device" } - -// ErrUnknownNICID indicates an unknown NIC ID was provided. -// -// +stateify savable -type ErrUnknownNICID struct{} - -func (*ErrUnknownNICID) isError() {} - -// IgnoreStats implements Error. -func (*ErrUnknownNICID) IgnoreStats() bool { - return false -} -func (*ErrUnknownNICID) String() string { return "unknown nic id" } - -// ErrUnknownProtocol indicates an unknown protocol was requested. -// -// +stateify savable -type ErrUnknownProtocol struct{} - -func (*ErrUnknownProtocol) isError() {} - -// IgnoreStats implements Error. -func (*ErrUnknownProtocol) IgnoreStats() bool { - return false -} -func (*ErrUnknownProtocol) String() string { return "unknown protocol" } - -// ErrUnknownProtocolOption indicates an unknown protocol option was provided. -// -// +stateify savable -type ErrUnknownProtocolOption struct{} - -func (*ErrUnknownProtocolOption) isError() {} - -// IgnoreStats implements Error. -func (*ErrUnknownProtocolOption) IgnoreStats() bool { - return false -} -func (*ErrUnknownProtocolOption) String() string { return "unknown option for protocol" } - -// ErrWouldBlock indicates the operation would block. -// -// +stateify savable -type ErrWouldBlock struct{} - -func (*ErrWouldBlock) isError() {} - -// IgnoreStats implements Error. -func (*ErrWouldBlock) IgnoreStats() bool { - return true -} -func (*ErrWouldBlock) String() string { return "operation would block" } - -// ErrMissingRequiredFields indicates that a required field is missing. -// -// +stateify savable -type ErrMissingRequiredFields struct{} - -func (*ErrMissingRequiredFields) isError() {} - -// IgnoreStats implements Error. -func (*ErrMissingRequiredFields) IgnoreStats() bool { - return true -} -func (*ErrMissingRequiredFields) String() string { return "missing required fields" } - -// ErrMulticastInputCannotBeOutput indicates that an input interface matches an -// output interface in the same multicast route. -// -// +stateify savable -type ErrMulticastInputCannotBeOutput struct{} - -func (*ErrMulticastInputCannotBeOutput) isError() {} - -// IgnoreStats implements Error. -func (*ErrMulticastInputCannotBeOutput) IgnoreStats() bool { - return true -} -func (*ErrMulticastInputCannotBeOutput) String() string { return "output cannot contain input" } - -// LINT.ThenChange(../syserr/netstack.go) diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/errors_linux.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/errors_linux.go deleted file mode 100644 index 0073568b25..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/errors_linux.go +++ /dev/null @@ -1,74 +0,0 @@ -// Copyright 2024 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//go:build linux -// +build linux - -package tcpip - -import ( - "golang.org/x/sys/unix" -) - -// TranslateErrno translate an errno from the syscall package into a -// tcpip Error. -// -// Valid, but unrecognized errnos will be translated to -// *ErrInvalidEndpointState (EINVAL). This includes the "zero" value. -func TranslateErrno(e unix.Errno) Error { - switch e { - case unix.EEXIST: - return &ErrDuplicateAddress{} - case unix.ENETUNREACH: - return &ErrHostUnreachable{} - case unix.EINVAL: - return &ErrInvalidEndpointState{} - case unix.EALREADY: - return &ErrAlreadyConnecting{} - case unix.EISCONN: - return &ErrAlreadyConnected{} - case unix.EADDRINUSE: - return &ErrPortInUse{} - case unix.EADDRNOTAVAIL: - return &ErrBadLocalAddress{} - case unix.EPIPE: - return &ErrClosedForSend{} - case unix.EWOULDBLOCK: - return &ErrWouldBlock{} - case unix.ECONNREFUSED: - return &ErrConnectionRefused{} - case unix.ETIMEDOUT: - return &ErrTimeout{} - case unix.EINPROGRESS: - return &ErrConnectStarted{} - case unix.EDESTADDRREQ: - return &ErrDestinationRequired{} - case unix.ENOTSUP: - return &ErrNotSupported{} - case unix.ENOTTY: - return &ErrQueueSizeNotSupported{} - case unix.ENOTCONN: - return &ErrNotConnected{} - case unix.ECONNRESET: - return &ErrConnectionReset{} - case unix.ECONNABORTED: - return &ErrConnectionAborted{} - case unix.EMSGSIZE: - return &ErrMessageTooLong{} - case unix.ENOBUFS: - return &ErrNoBufferSpace{} - default: - return &ErrInvalidEndpointState{} - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/hash/jenkins/jenkins.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/hash/jenkins/jenkins.go deleted file mode 100644 index 89b20f021c..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/hash/jenkins/jenkins.go +++ /dev/null @@ -1,79 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package jenkins implements Jenkins's one_at_a_time, non-cryptographic hash -// functions created by by Bob Jenkins. -// -// See https://en.wikipedia.org/wiki/Jenkins_hash_function#cite_note-dobbsx-1 -package jenkins - -import ( - "hash" -) - -// Sum32 represents Jenkins's one_at_a_time hash. -// -// Use the Sum32 type directly (as opposed to New32 below) -// to avoid allocations. -type Sum32 uint32 - -// New32 returns a new 32-bit Jenkins's one_at_a_time hash.Hash. -// -// Its Sum method will lay the value out in big-endian byte order. -func New32() hash.Hash32 { - var s Sum32 - return &s -} - -// Reset resets the hash to its initial state. -func (s *Sum32) Reset() { *s = 0 } - -// Sum32 returns the hash value -func (s *Sum32) Sum32() uint32 { - sCopy := *s - - sCopy += sCopy << 3 - sCopy ^= sCopy >> 11 - sCopy += sCopy << 15 - - return uint32(sCopy) -} - -// Write adds more data to the running hash. -// -// It never returns an error. -func (s *Sum32) Write(data []byte) (int, error) { - sCopy := *s - for _, b := range data { - sCopy += Sum32(b) - sCopy += sCopy << 10 - sCopy ^= sCopy >> 6 - } - *s = sCopy - return len(data), nil -} - -// Size returns the number of bytes Sum will return. -func (s *Sum32) Size() int { return 4 } - -// BlockSize returns the hash's underlying block size. -func (s *Sum32) BlockSize() int { return 1 } - -// Sum appends the current hash to in and returns the resulting slice. -// -// It does not change the underlying hash state. -func (s *Sum32) Sum(in []byte) []byte { - v := s.Sum32() - return append(in, byte(v>>24), byte(v>>16), byte(v>>8), byte(v)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/hash/jenkins/jenkins_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/hash/jenkins/jenkins_state_autogen.go deleted file mode 100644 index 216cc5a2e7..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/hash/jenkins/jenkins_state_autogen.go +++ /dev/null @@ -1,3 +0,0 @@ -// automatically generated by stateify. - -package jenkins diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/arp.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/arp.go deleted file mode 100644 index 83189676ea..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/arp.go +++ /dev/null @@ -1,127 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "encoding/binary" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -const ( - // ARPProtocolNumber is the ARP network protocol number. - ARPProtocolNumber tcpip.NetworkProtocolNumber = 0x0806 - - // ARPSize is the size of an IPv4-over-Ethernet ARP packet. - ARPSize = 28 -) - -// ARPHardwareType is the hardware type for LinkEndpoint in an ARP header. -type ARPHardwareType uint16 - -// Typical ARP HardwareType values. Some of the constants have to be specific -// values as they are egressed on the wire in the HTYPE field of an ARP header. -const ( - ARPHardwareNone ARPHardwareType = 0 - // ARPHardwareEther specifically is the HTYPE for Ethernet as specified - // in the IANA list here: - // - // https://www.iana.org/assignments/arp-parameters/arp-parameters.xhtml#arp-parameters-2 - ARPHardwareEther ARPHardwareType = 1 - ARPHardwareLoopback ARPHardwareType = 2 -) - -// ARPOp is an ARP opcode. -type ARPOp uint16 - -// Typical ARP opcodes defined in RFC 826. -const ( - ARPRequest ARPOp = 1 - ARPReply ARPOp = 2 -) - -// ARP is an ARP packet stored in a byte array as described in RFC 826. -type ARP []byte - -const ( - hTypeOffset = 0 - protocolOffset = 2 - haAddressSizeOffset = 4 - protoAddressSizeOffset = 5 - opCodeOffset = 6 - senderHAAddressOffset = 8 - senderProtocolAddressOffset = senderHAAddressOffset + EthernetAddressSize - targetHAAddressOffset = senderProtocolAddressOffset + IPv4AddressSize - targetProtocolAddressOffset = targetHAAddressOffset + EthernetAddressSize -) - -func (a ARP) hardwareAddressType() ARPHardwareType { - return ARPHardwareType(binary.BigEndian.Uint16(a[hTypeOffset:])) -} - -func (a ARP) protocolAddressSpace() uint16 { return binary.BigEndian.Uint16(a[protocolOffset:]) } -func (a ARP) hardwareAddressSize() int { return int(a[haAddressSizeOffset]) } -func (a ARP) protocolAddressSize() int { return int(a[protoAddressSizeOffset]) } - -// Op is the ARP opcode. -func (a ARP) Op() ARPOp { return ARPOp(binary.BigEndian.Uint16(a[opCodeOffset:])) } - -// SetOp sets the ARP opcode. -func (a ARP) SetOp(op ARPOp) { - binary.BigEndian.PutUint16(a[opCodeOffset:], uint16(op)) -} - -// SetIPv4OverEthernet configures the ARP packet for IPv4-over-Ethernet. -func (a ARP) SetIPv4OverEthernet() { - binary.BigEndian.PutUint16(a[hTypeOffset:], uint16(ARPHardwareEther)) - binary.BigEndian.PutUint16(a[protocolOffset:], uint16(IPv4ProtocolNumber)) - a[haAddressSizeOffset] = EthernetAddressSize - a[protoAddressSizeOffset] = uint8(IPv4AddressSize) -} - -// HardwareAddressSender is the link address of the sender. -// It is a view on to the ARP packet so it can be used to set the value. -func (a ARP) HardwareAddressSender() []byte { - return a[senderHAAddressOffset : senderHAAddressOffset+EthernetAddressSize] -} - -// ProtocolAddressSender is the protocol address of the sender. -// It is a view on to the ARP packet so it can be used to set the value. -func (a ARP) ProtocolAddressSender() []byte { - return a[senderProtocolAddressOffset : senderProtocolAddressOffset+IPv4AddressSize] -} - -// HardwareAddressTarget is the link address of the target. -// It is a view on to the ARP packet so it can be used to set the value. -func (a ARP) HardwareAddressTarget() []byte { - return a[targetHAAddressOffset : targetHAAddressOffset+EthernetAddressSize] -} - -// ProtocolAddressTarget is the protocol address of the target. -// It is a view on to the ARP packet so it can be used to set the value. -func (a ARP) ProtocolAddressTarget() []byte { - return a[targetProtocolAddressOffset : targetProtocolAddressOffset+IPv4AddressSize] -} - -// IsValid reports whether this is an ARP packet for IPv4 over Ethernet. -func (a ARP) IsValid() bool { - if len(a) < ARPSize { - return false - } - return a.hardwareAddressType() == ARPHardwareEther && - a.protocolAddressSpace() == uint16(IPv4ProtocolNumber) && - a.hardwareAddressSize() == EthernetAddressSize && - a.protocolAddressSize() == IPv4AddressSize -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/checksum.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/checksum.go deleted file mode 100644 index 060b4a86cc..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/checksum.go +++ /dev/null @@ -1,107 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package header provides the implementation of the encoding and decoding of -// network protocol headers. -package header - -import ( - "encoding/binary" - "fmt" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/checksum" -) - -// PseudoHeaderChecksum calculates the pseudo-header checksum for the given -// destination protocol and network address. Pseudo-headers are needed by -// transport layers when calculating their own checksum. -func PseudoHeaderChecksum(protocol tcpip.TransportProtocolNumber, srcAddr tcpip.Address, dstAddr tcpip.Address, totalLen uint16) uint16 { - xsum := checksum.Checksum(srcAddr.AsSlice(), 0) - xsum = checksum.Checksum(dstAddr.AsSlice(), xsum) - - // Add the length portion of the checksum to the pseudo-checksum. - var tmp [2]byte - binary.BigEndian.PutUint16(tmp[:], totalLen) - xsum = checksum.Checksum(tmp[:], xsum) - - return checksum.Checksum([]byte{0, uint8(protocol)}, xsum) -} - -// checksumUpdate2ByteAlignedUint16 updates a uint16 value in a calculated -// checksum. -// -// The value MUST begin at a 2-byte boundary in the original buffer. -func checksumUpdate2ByteAlignedUint16(xsum, old, new uint16) uint16 { - // As per RFC 1071 page 4, - // (4) Incremental Update - // - // ... - // - // To update the checksum, simply add the differences of the - // sixteen bit integers that have been changed. To see why this - // works, observe that every 16-bit integer has an additive inverse - // and that addition is associative. From this it follows that - // given the original value m, the new value m', and the old - // checksum C, the new checksum C' is: - // - // C' = C + (-m) + m' = C + (m' - m) - if old == new { - return xsum - } - return checksum.Combine(xsum, checksum.Combine(new, ^old)) -} - -// checksumUpdate2ByteAlignedAddress updates an address in a calculated -// checksum. -// -// The addresses must have the same length and must contain an even number -// of bytes. The address MUST begin at a 2-byte boundary in the original buffer. -func checksumUpdate2ByteAlignedAddress(xsum uint16, old, new tcpip.Address) uint16 { - const uint16Bytes = 2 - - if old.BitLen() != new.BitLen() { - panic(fmt.Sprintf("buffer lengths are different; old = %d, new = %d", old.BitLen()/8, new.BitLen()/8)) - } - - if oldBytes := old.BitLen() % 16; oldBytes != 0 { - panic(fmt.Sprintf("buffer has an odd number of bytes; got = %d", oldBytes)) - } - - oldAddr := old.AsSlice() - newAddr := new.AsSlice() - - // As per RFC 1071 page 4, - // (4) Incremental Update - // - // ... - // - // To update the checksum, simply add the differences of the - // sixteen bit integers that have been changed. To see why this - // works, observe that every 16-bit integer has an additive inverse - // and that addition is associative. From this it follows that - // given the original value m, the new value m', and the old - // checksum C, the new checksum C' is: - // - // C' = C + (-m) + m' = C + (m' - m) - for len(oldAddr) != 0 { - // Convert the 2 byte sequences to uint16 values then apply the increment - // update. - xsum = checksumUpdate2ByteAlignedUint16(xsum, (uint16(oldAddr[0])<<8)+uint16(oldAddr[1]), (uint16(newAddr[0])<<8)+uint16(newAddr[1])) - oldAddr = oldAddr[uint16Bytes:] - newAddr = newAddr[uint16Bytes:] - } - - return xsum -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/datagram.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/datagram.go deleted file mode 100644 index 7569091c59..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/datagram.go +++ /dev/null @@ -1,18 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -// DatagramMaximumSize is the maximum supported size of a single datagram. -const DatagramMaximumSize = 0xffff // 65KB. diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/eth.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/eth.go deleted file mode 100644 index d457573084..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/eth.go +++ /dev/null @@ -1,192 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "encoding/binary" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -const ( - dstMAC = 0 - srcMAC = 6 - ethType = 12 -) - -// EthernetFields contains the fields of an ethernet frame header. It is used to -// describe the fields of a frame that needs to be encoded. -type EthernetFields struct { - // SrcAddr is the "MAC source" field of an ethernet frame header. - SrcAddr tcpip.LinkAddress - - // DstAddr is the "MAC destination" field of an ethernet frame header. - DstAddr tcpip.LinkAddress - - // Type is the "ethertype" field of an ethernet frame header. - Type tcpip.NetworkProtocolNumber -} - -// Ethernet represents an ethernet frame header stored in a byte array. -type Ethernet []byte - -const ( - // EthernetMinimumSize is the minimum size of a valid ethernet frame. - EthernetMinimumSize = 14 - - // EthernetMaximumSize is the maximum size of a valid ethernet frame. - EthernetMaximumSize = 18 - - // EthernetAddressSize is the size, in bytes, of an ethernet address. - EthernetAddressSize = 6 - - // UnspecifiedEthernetAddress is the unspecified ethernet address - // (all bits set to 0). - UnspecifiedEthernetAddress = tcpip.LinkAddress("\x00\x00\x00\x00\x00\x00") - - // EthernetBroadcastAddress is an ethernet address that addresses every node - // on a local link. - EthernetBroadcastAddress = tcpip.LinkAddress("\xff\xff\xff\xff\xff\xff") - - // unicastMulticastFlagMask is the mask of the least significant bit in - // the first octet (in network byte order) of an ethernet address that - // determines whether the ethernet address is a unicast or multicast. If - // the masked bit is a 1, then the address is a multicast, unicast - // otherwise. - // - // See the IEEE Std 802-2001 document for more details. Specifically, - // section 9.2.1 of http://ieee802.org/secmail/pdfocSP2xXA6d.pdf: - // "A 48-bit universal address consists of two parts. The first 24 bits - // correspond to the OUI as assigned by the IEEE, expect that the - // assignee may set the LSB of the first octet to 1 for group addresses - // or set it to 0 for individual addresses." - unicastMulticastFlagMask = 1 - - // unicastMulticastFlagByteIdx is the byte that holds the - // unicast/multicast flag. See unicastMulticastFlagMask. - unicastMulticastFlagByteIdx = 0 -) - -const ( - // EthernetProtocolAll is a catch-all for all protocols carried inside - // an ethernet frame. It is mainly used to create packet sockets that - // capture all traffic. - EthernetProtocolAll tcpip.NetworkProtocolNumber = 0x0003 - - // EthernetProtocolPUP is the PARC Universal Packet protocol ethertype. - EthernetProtocolPUP tcpip.NetworkProtocolNumber = 0x0200 -) - -// Ethertypes holds the protocol numbers describing the payload of an ethernet -// frame. These types aren't necessarily supported by netstack, but can be used -// to catch all traffic of a type via packet endpoints. -var Ethertypes = []tcpip.NetworkProtocolNumber{ - EthernetProtocolAll, - EthernetProtocolPUP, -} - -// SourceAddress returns the "MAC source" field of the ethernet frame header. -func (b Ethernet) SourceAddress() tcpip.LinkAddress { - return tcpip.LinkAddress(b[srcMAC:][:EthernetAddressSize]) -} - -// DestinationAddress returns the "MAC destination" field of the ethernet frame -// header. -func (b Ethernet) DestinationAddress() tcpip.LinkAddress { - return tcpip.LinkAddress(b[dstMAC:][:EthernetAddressSize]) -} - -// Type returns the "ethertype" field of the ethernet frame header. -func (b Ethernet) Type() tcpip.NetworkProtocolNumber { - return tcpip.NetworkProtocolNumber(binary.BigEndian.Uint16(b[ethType:])) -} - -// Encode encodes all the fields of the ethernet frame header. -func (b Ethernet) Encode(e *EthernetFields) { - binary.BigEndian.PutUint16(b[ethType:], uint16(e.Type)) - copy(b[srcMAC:][:EthernetAddressSize], e.SrcAddr) - copy(b[dstMAC:][:EthernetAddressSize], e.DstAddr) -} - -// IsMulticastEthernetAddress returns true if the address is a multicast -// ethernet address. -func IsMulticastEthernetAddress(addr tcpip.LinkAddress) bool { - if len(addr) != EthernetAddressSize { - return false - } - - return addr[unicastMulticastFlagByteIdx]&unicastMulticastFlagMask != 0 -} - -// IsValidUnicastEthernetAddress returns true if the address is a unicast -// ethernet address. -func IsValidUnicastEthernetAddress(addr tcpip.LinkAddress) bool { - if len(addr) != EthernetAddressSize { - return false - } - - if addr == UnspecifiedEthernetAddress { - return false - } - - if addr[unicastMulticastFlagByteIdx]&unicastMulticastFlagMask != 0 { - return false - } - - return true -} - -// EthernetAddressFromMulticastIPv4Address returns a multicast Ethernet address -// for a multicast IPv4 address. -// -// addr MUST be a multicast IPv4 address. -func EthernetAddressFromMulticastIPv4Address(addr tcpip.Address) tcpip.LinkAddress { - var linkAddrBytes [EthernetAddressSize]byte - // RFC 1112 Host Extensions for IP Multicasting - // - // 6.4. Extensions to an Ethernet Local Network Module: - // - // An IP host group address is mapped to an Ethernet multicast - // address by placing the low-order 23-bits of the IP address - // into the low-order 23 bits of the Ethernet multicast address - // 01-00-5E-00-00-00 (hex). - addrBytes := addr.As4() - linkAddrBytes[0] = 0x1 - linkAddrBytes[2] = 0x5e - linkAddrBytes[3] = addrBytes[1] & 0x7F - copy(linkAddrBytes[4:], addrBytes[IPv4AddressSize-2:]) - return tcpip.LinkAddress(linkAddrBytes[:]) -} - -// EthernetAddressFromMulticastIPv6Address returns a multicast Ethernet address -// for a multicast IPv6 address. -// -// addr MUST be a multicast IPv6 address. -func EthernetAddressFromMulticastIPv6Address(addr tcpip.Address) tcpip.LinkAddress { - // RFC 2464 Transmission of IPv6 Packets over Ethernet Networks - // - // 7. Address Mapping -- Multicast - // - // An IPv6 packet with a multicast destination address DST, - // consisting of the sixteen octets DST[1] through DST[16], is - // transmitted to the Ethernet multicast address whose first - // two octets are the value 3333 hexadecimal and whose last - // four octets are the last four octets of DST. - addrBytes := addr.As16() - linkAddrBytes := []byte(addrBytes[IPv6AddressSize-EthernetAddressSize:]) - linkAddrBytes[0] = 0x33 - linkAddrBytes[1] = 0x33 - return tcpip.LinkAddress(linkAddrBytes[:]) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/gue.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/gue.go deleted file mode 100644 index 10d358c0e2..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/gue.go +++ /dev/null @@ -1,73 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -const ( - typeHLen = 0 - encapProto = 1 -) - -// GUEFields contains the fields of a GUE packet. It is used to describe the -// fields of a packet that needs to be encoded. -type GUEFields struct { - // Type is the "type" field of the GUE header. - Type uint8 - - // Control is the "control" field of the GUE header. - Control bool - - // HeaderLength is the "header length" field of the GUE header. It must - // be at least 4 octets, and a multiple of 4 as well. - HeaderLength uint8 - - // Protocol is the "protocol" field of the GUE header. This is one of - // the IPPROTO_* values. - Protocol uint8 -} - -// GUE represents a Generic UDP Encapsulation header stored in a byte array, the -// fields are described in https://tools.ietf.org/html/draft-ietf-nvo3-gue-01. -type GUE []byte - -const ( - // GUEMinimumSize is the minimum size of a valid GUE packet. - GUEMinimumSize = 4 -) - -// TypeAndControl returns the GUE packet type (top 3 bits of the first byte, -// which includes the control bit). -func (b GUE) TypeAndControl() uint8 { - return b[typeHLen] >> 5 -} - -// HeaderLength returns the total length of the GUE header. -func (b GUE) HeaderLength() uint8 { - return 4 + 4*(b[typeHLen]&0x1f) -} - -// Protocol returns the protocol field of the GUE header. -func (b GUE) Protocol() uint8 { - return b[encapProto] -} - -// Encode encodes all the fields of the GUE header. -func (b GUE) Encode(i *GUEFields) { - ctl := uint8(0) - if i.Control { - ctl = 1 << 5 - } - b[typeHLen] = ctl | i.Type<<6 | (i.HeaderLength-4)/4 - b[encapProto] = i.Protocol -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/header_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/header_state_autogen.go deleted file mode 100644 index 743b11b669..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/header_state_autogen.go +++ /dev/null @@ -1,120 +0,0 @@ -// automatically generated by stateify. - -package header - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (t *TCPSynOptions) StateTypeName() string { - return "pkg/tcpip/header.TCPSynOptions" -} - -func (t *TCPSynOptions) StateFields() []string { - return []string{ - "MSS", - "WS", - "TS", - "TSVal", - "TSEcr", - "SACKPermitted", - "Flags", - } -} - -func (t *TCPSynOptions) beforeSave() {} - -// +checklocksignore -func (t *TCPSynOptions) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.MSS) - stateSinkObject.Save(1, &t.WS) - stateSinkObject.Save(2, &t.TS) - stateSinkObject.Save(3, &t.TSVal) - stateSinkObject.Save(4, &t.TSEcr) - stateSinkObject.Save(5, &t.SACKPermitted) - stateSinkObject.Save(6, &t.Flags) -} - -func (t *TCPSynOptions) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPSynOptions) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.MSS) - stateSourceObject.Load(1, &t.WS) - stateSourceObject.Load(2, &t.TS) - stateSourceObject.Load(3, &t.TSVal) - stateSourceObject.Load(4, &t.TSEcr) - stateSourceObject.Load(5, &t.SACKPermitted) - stateSourceObject.Load(6, &t.Flags) -} - -func (r *SACKBlock) StateTypeName() string { - return "pkg/tcpip/header.SACKBlock" -} - -func (r *SACKBlock) StateFields() []string { - return []string{ - "Start", - "End", - } -} - -func (r *SACKBlock) beforeSave() {} - -// +checklocksignore -func (r *SACKBlock) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.Start) - stateSinkObject.Save(1, &r.End) -} - -func (r *SACKBlock) afterLoad(context.Context) {} - -// +checklocksignore -func (r *SACKBlock) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.Start) - stateSourceObject.Load(1, &r.End) -} - -func (t *TCPOptions) StateTypeName() string { - return "pkg/tcpip/header.TCPOptions" -} - -func (t *TCPOptions) StateFields() []string { - return []string{ - "TS", - "TSVal", - "TSEcr", - "SACKBlocks", - } -} - -func (t *TCPOptions) beforeSave() {} - -// +checklocksignore -func (t *TCPOptions) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.TS) - stateSinkObject.Save(1, &t.TSVal) - stateSinkObject.Save(2, &t.TSEcr) - stateSinkObject.Save(3, &t.SACKBlocks) -} - -func (t *TCPOptions) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPOptions) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.TS) - stateSourceObject.Load(1, &t.TSVal) - stateSourceObject.Load(2, &t.TSEcr) - stateSourceObject.Load(3, &t.SACKBlocks) -} - -func init() { - state.Register((*TCPSynOptions)(nil)) - state.Register((*SACKBlock)(nil)) - state.Register((*TCPOptions)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/icmpv4.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/icmpv4.go deleted file mode 100644 index abb64db3be..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/icmpv4.go +++ /dev/null @@ -1,228 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "encoding/binary" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/checksum" -) - -// ICMPv4 represents an ICMPv4 header stored in a byte array. -type ICMPv4 []byte - -const ( - // ICMPv4PayloadOffset defines the start of ICMP payload. - ICMPv4PayloadOffset = 8 - - // ICMPv4MinimumSize is the minimum size of a valid ICMP packet. - ICMPv4MinimumSize = 8 - - // ICMPv4MinimumErrorPayloadSize Is the smallest number of bytes of an - // errant packet's transport layer that an ICMP error type packet should - // attempt to send as per RFC 792 (see each type) and RFC 1122 - // section 3.2.2 which states: - // Every ICMP error message includes the Internet header and at - // least the first 8 data octets of the datagram that triggered - // the error; more than 8 octets MAY be sent; this header and data - // MUST be unchanged from the received datagram. - // - // RFC 792 shows: - // 0 1 2 3 - // 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - // | Type | Code | Checksum | - // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - // | unused | - // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - // | Internet Header + 64 bits of Original Data Datagram | - // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - ICMPv4MinimumErrorPayloadSize = 8 - - // ICMPv4ProtocolNumber is the ICMP transport protocol number. - ICMPv4ProtocolNumber tcpip.TransportProtocolNumber = 1 - - // icmpv4ChecksumOffset is the offset of the checksum field - // in an ICMPv4 message. - icmpv4ChecksumOffset = 2 - - // icmpv4MTUOffset is the offset of the MTU field - // in an ICMPv4FragmentationNeeded message. - icmpv4MTUOffset = 6 - - // icmpv4IdentOffset is the offset of the ident field - // in an ICMPv4EchoRequest/Reply message. - icmpv4IdentOffset = 4 - - // icmpv4PointerOffset is the offset of the pointer field - // in an ICMPv4ParamProblem message. - icmpv4PointerOffset = 4 - - // icmpv4SequenceOffset is the offset of the sequence field - // in an ICMPv4EchoRequest/Reply message. - icmpv4SequenceOffset = 6 -) - -// ICMPv4Type is the ICMP type field described in RFC 792. -type ICMPv4Type byte - -// ICMPv4Code is the ICMP code field described in RFC 792. -type ICMPv4Code byte - -// Typical values of ICMPv4Type defined in RFC 792. -const ( - ICMPv4EchoReply ICMPv4Type = 0 - ICMPv4DstUnreachable ICMPv4Type = 3 - ICMPv4SrcQuench ICMPv4Type = 4 - ICMPv4Redirect ICMPv4Type = 5 - ICMPv4Echo ICMPv4Type = 8 - ICMPv4TimeExceeded ICMPv4Type = 11 - ICMPv4ParamProblem ICMPv4Type = 12 - ICMPv4Timestamp ICMPv4Type = 13 - ICMPv4TimestampReply ICMPv4Type = 14 - ICMPv4InfoRequest ICMPv4Type = 15 - ICMPv4InfoReply ICMPv4Type = 16 -) - -// ICMP codes for ICMPv4 Time Exceeded messages as defined in RFC 792. -const ( - ICMPv4TTLExceeded ICMPv4Code = 0 - ICMPv4ReassemblyTimeout ICMPv4Code = 1 -) - -// ICMP codes for ICMPv4 Destination Unreachable messages as defined in RFC 792, -// RFC 1122 section 3.2.2.1 and RFC 1812 section 5.2.7.1. -const ( - ICMPv4NetUnreachable ICMPv4Code = 0 - ICMPv4HostUnreachable ICMPv4Code = 1 - ICMPv4ProtoUnreachable ICMPv4Code = 2 - ICMPv4PortUnreachable ICMPv4Code = 3 - ICMPv4FragmentationNeeded ICMPv4Code = 4 - ICMPv4SourceRouteFailed ICMPv4Code = 5 - ICMPv4DestinationNetworkUnknown ICMPv4Code = 6 - ICMPv4DestinationHostUnknown ICMPv4Code = 7 - ICMPv4SourceHostIsolated ICMPv4Code = 8 - ICMPv4NetProhibited ICMPv4Code = 9 - ICMPv4HostProhibited ICMPv4Code = 10 - ICMPv4NetUnreachableForTos ICMPv4Code = 11 - ICMPv4HostUnreachableForTos ICMPv4Code = 12 - ICMPv4AdminProhibited ICMPv4Code = 13 - ICMPv4HostPrecedenceViolation ICMPv4Code = 14 - ICMPv4PrecedenceCutInEffect ICMPv4Code = 15 -) - -// ICMPv4UnusedCode is a code to use in ICMP messages where no code is needed. -const ICMPv4UnusedCode ICMPv4Code = 0 - -// Type is the ICMP type field. -func (b ICMPv4) Type() ICMPv4Type { return ICMPv4Type(b[0]) } - -// SetType sets the ICMP type field. -func (b ICMPv4) SetType(t ICMPv4Type) { b[0] = byte(t) } - -// Code is the ICMP code field. Its meaning depends on the value of Type. -func (b ICMPv4) Code() ICMPv4Code { return ICMPv4Code(b[1]) } - -// SetCode sets the ICMP code field. -func (b ICMPv4) SetCode(c ICMPv4Code) { b[1] = byte(c) } - -// Pointer returns the pointer field in a Parameter Problem packet. -func (b ICMPv4) Pointer() byte { return b[icmpv4PointerOffset] } - -// SetPointer sets the pointer field in a Parameter Problem packet. -func (b ICMPv4) SetPointer(c byte) { b[icmpv4PointerOffset] = c } - -// Checksum is the ICMP checksum field. -func (b ICMPv4) Checksum() uint16 { - return binary.BigEndian.Uint16(b[icmpv4ChecksumOffset:]) -} - -// SetChecksum sets the ICMP checksum field. -func (b ICMPv4) SetChecksum(cs uint16) { - checksum.Put(b[icmpv4ChecksumOffset:], cs) -} - -// SourcePort implements Transport.SourcePort. -func (ICMPv4) SourcePort() uint16 { - return 0 -} - -// DestinationPort implements Transport.DestinationPort. -func (ICMPv4) DestinationPort() uint16 { - return 0 -} - -// SetSourcePort implements Transport.SetSourcePort. -func (ICMPv4) SetSourcePort(uint16) { -} - -// SetDestinationPort implements Transport.SetDestinationPort. -func (ICMPv4) SetDestinationPort(uint16) { -} - -// Payload implements Transport.Payload. -func (b ICMPv4) Payload() []byte { - return b[ICMPv4PayloadOffset:] -} - -// MTU retrieves the MTU field from an ICMPv4 message. -func (b ICMPv4) MTU() uint16 { - return binary.BigEndian.Uint16(b[icmpv4MTUOffset:]) -} - -// SetMTU sets the MTU field from an ICMPv4 message. -func (b ICMPv4) SetMTU(mtu uint16) { - binary.BigEndian.PutUint16(b[icmpv4MTUOffset:], mtu) -} - -// Ident retrieves the Ident field from an ICMPv4 message. -func (b ICMPv4) Ident() uint16 { - return binary.BigEndian.Uint16(b[icmpv4IdentOffset:]) -} - -// SetIdent sets the Ident field from an ICMPv4 message. -func (b ICMPv4) SetIdent(ident uint16) { - binary.BigEndian.PutUint16(b[icmpv4IdentOffset:], ident) -} - -// SetIdentWithChecksumUpdate sets the Ident field and updates the checksum. -func (b ICMPv4) SetIdentWithChecksumUpdate(new uint16) { - old := b.Ident() - b.SetIdent(new) - b.SetChecksum(^checksumUpdate2ByteAlignedUint16(^b.Checksum(), old, new)) -} - -// Sequence retrieves the Sequence field from an ICMPv4 message. -func (b ICMPv4) Sequence() uint16 { - return binary.BigEndian.Uint16(b[icmpv4SequenceOffset:]) -} - -// SetSequence sets the Sequence field from an ICMPv4 message. -func (b ICMPv4) SetSequence(sequence uint16) { - binary.BigEndian.PutUint16(b[icmpv4SequenceOffset:], sequence) -} - -// ICMPv4Checksum calculates the ICMP checksum over the provided ICMP header, -// and payload. -func ICMPv4Checksum(h ICMPv4, payloadCsum uint16) uint16 { - xsum := payloadCsum - - // h[2:4] is the checksum itself, skip it to avoid checksumming the checksum. - xsum = checksum.Checksum(h[:2], xsum) - xsum = checksum.Checksum(h[4:], xsum) - - return ^xsum -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/icmpv6.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/icmpv6.go deleted file mode 100644 index ea1bfcd54e..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/icmpv6.go +++ /dev/null @@ -1,304 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "encoding/binary" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/checksum" -) - -// ICMPv6 represents an ICMPv6 header stored in a byte array. -type ICMPv6 []byte - -const ( - // ICMPv6HeaderSize is the size of the ICMPv6 header. That is, the - // sum of the size of the ICMPv6 Type, Code and Checksum fields, as - // per RFC 4443 section 2.1. After the ICMPv6 header, the ICMPv6 - // message body begins. - ICMPv6HeaderSize = 4 - - // ICMPv6MinimumSize is the minimum size of a valid ICMP packet. - ICMPv6MinimumSize = 8 - - // ICMPv6PayloadOffset is the offset of the payload in an - // ICMP packet. - ICMPv6PayloadOffset = 8 - - // ICMPv6ProtocolNumber is the ICMP transport protocol number. - ICMPv6ProtocolNumber tcpip.TransportProtocolNumber = 58 - - // ICMPv6NeighborSolicitMinimumSize is the minimum size of a - // neighbor solicitation packet. - ICMPv6NeighborSolicitMinimumSize = ICMPv6HeaderSize + NDPNSMinimumSize - - // ICMPv6NeighborAdvertMinimumSize is the minimum size of a - // neighbor advertisement packet. - ICMPv6NeighborAdvertMinimumSize = ICMPv6HeaderSize + NDPNAMinimumSize - - // ICMPv6EchoMinimumSize is the minimum size of a valid echo packet. - ICMPv6EchoMinimumSize = 8 - - // ICMPv6ErrorHeaderSize is the size of an ICMP error packet header, - // as per RFC 4443, Appendix A, item 4 and the errata. - // ... all ICMP error messages shall have exactly - // 32 bits of type-specific data, so that receivers can reliably find - // the embedded invoking packet even when they don't recognize the - // ICMP message Type. - ICMPv6ErrorHeaderSize = 8 - - // ICMPv6DstUnreachableMinimumSize is the minimum size of a valid ICMP - // destination unreachable packet. - ICMPv6DstUnreachableMinimumSize = ICMPv6MinimumSize - - // ICMPv6PacketTooBigMinimumSize is the minimum size of a valid ICMP - // packet-too-big packet. - ICMPv6PacketTooBigMinimumSize = ICMPv6MinimumSize - - // ICMPv6ChecksumOffset is the offset of the checksum field - // in an ICMPv6 message. - ICMPv6ChecksumOffset = 2 - - // icmpv6PointerOffset is the offset of the pointer - // in an ICMPv6 Parameter problem message. - icmpv6PointerOffset = 4 - - // icmpv6MTUOffset is the offset of the MTU field in an ICMPv6 - // PacketTooBig message. - icmpv6MTUOffset = 4 - - // icmpv6IdentOffset is the offset of the ident field - // in a ICMPv6 Echo Request/Reply message. - icmpv6IdentOffset = 4 - - // icmpv6SequenceOffset is the offset of the sequence field - // in a ICMPv6 Echo Request/Reply message. - icmpv6SequenceOffset = 6 - - // NDPHopLimit is the expected IP hop limit value of 255 for received - // NDP packets, as per RFC 4861 sections 4.1 - 4.5, 6.1.1, 6.1.2, 7.1.1, - // 7.1.2 and 8.1. If the hop limit value is not 255, nodes MUST silently - // drop the NDP packet. All outgoing NDP packets must use this value for - // its IP hop limit field. - NDPHopLimit = 255 -) - -// ICMPv6Type is the ICMP type field described in RFC 4443. -type ICMPv6Type byte - -// Values for use in the Type field of ICMPv6 packet from RFC 4433. -const ( - ICMPv6DstUnreachable ICMPv6Type = 1 - ICMPv6PacketTooBig ICMPv6Type = 2 - ICMPv6TimeExceeded ICMPv6Type = 3 - ICMPv6ParamProblem ICMPv6Type = 4 - ICMPv6EchoRequest ICMPv6Type = 128 - ICMPv6EchoReply ICMPv6Type = 129 - - // Neighbor Discovery Protocol (NDP) messages, see RFC 4861. - - ICMPv6RouterSolicit ICMPv6Type = 133 - ICMPv6RouterAdvert ICMPv6Type = 134 - ICMPv6NeighborSolicit ICMPv6Type = 135 - ICMPv6NeighborAdvert ICMPv6Type = 136 - ICMPv6RedirectMsg ICMPv6Type = 137 - - // Multicast Listener Discovery (MLD) messages, see RFC 2710. - - ICMPv6MulticastListenerQuery ICMPv6Type = 130 - ICMPv6MulticastListenerReport ICMPv6Type = 131 - ICMPv6MulticastListenerDone ICMPv6Type = 132 - - // Multicast Listener Discovert Version 2 (MLDv2) messages, see RFC 3810. - - ICMPv6MulticastListenerV2Report ICMPv6Type = 143 -) - -// IsErrorType returns true if the receiver is an ICMP error type. -func (typ ICMPv6Type) IsErrorType() bool { - // Per RFC 4443 section 2.1: - // ICMPv6 messages are grouped into two classes: error messages and - // informational messages. Error messages are identified as such by a - // zero in the high-order bit of their message Type field values. Thus, - // error messages have message types from 0 to 127; informational - // messages have message types from 128 to 255. - return typ&0x80 == 0 -} - -// ICMPv6Code is the ICMP Code field described in RFC 4443. -type ICMPv6Code byte - -// ICMP codes used with Destination Unreachable (Type 1). As per RFC 4443 -// section 3.1. -const ( - ICMPv6NetworkUnreachable ICMPv6Code = 0 - ICMPv6Prohibited ICMPv6Code = 1 - ICMPv6BeyondScope ICMPv6Code = 2 - ICMPv6AddressUnreachable ICMPv6Code = 3 - ICMPv6PortUnreachable ICMPv6Code = 4 - ICMPv6Policy ICMPv6Code = 5 - ICMPv6RejectRoute ICMPv6Code = 6 -) - -// ICMP codes used with Time Exceeded (Type 3). As per RFC 4443 section 3.3. -const ( - ICMPv6HopLimitExceeded ICMPv6Code = 0 - ICMPv6ReassemblyTimeout ICMPv6Code = 1 -) - -// ICMP codes used with Parameter Problem (Type 4). As per RFC 4443 section 3.4. -const ( - // ICMPv6ErroneousHeader indicates an erroneous header field was encountered. - ICMPv6ErroneousHeader ICMPv6Code = 0 - - // ICMPv6UnknownHeader indicates an unrecognized Next Header type encountered. - ICMPv6UnknownHeader ICMPv6Code = 1 - - // ICMPv6UnknownOption indicates an unrecognized IPv6 option was encountered. - ICMPv6UnknownOption ICMPv6Code = 2 -) - -// ICMPv6UnusedCode is the code value used with ICMPv6 messages which don't use -// the code field. (Types not mentioned above.) -const ICMPv6UnusedCode ICMPv6Code = 0 - -// Type is the ICMP type field. -func (b ICMPv6) Type() ICMPv6Type { return ICMPv6Type(b[0]) } - -// SetType sets the ICMP type field. -func (b ICMPv6) SetType(t ICMPv6Type) { b[0] = byte(t) } - -// Code is the ICMP code field. Its meaning depends on the value of Type. -func (b ICMPv6) Code() ICMPv6Code { return ICMPv6Code(b[1]) } - -// SetCode sets the ICMP code field. -func (b ICMPv6) SetCode(c ICMPv6Code) { b[1] = byte(c) } - -// TypeSpecific returns the type specific data field. -func (b ICMPv6) TypeSpecific() uint32 { - return binary.BigEndian.Uint32(b[icmpv6PointerOffset:]) -} - -// SetTypeSpecific sets the type specific data field. -func (b ICMPv6) SetTypeSpecific(val uint32) { - binary.BigEndian.PutUint32(b[icmpv6PointerOffset:], val) -} - -// Checksum is the ICMP checksum field. -func (b ICMPv6) Checksum() uint16 { - return binary.BigEndian.Uint16(b[ICMPv6ChecksumOffset:]) -} - -// SetChecksum sets the ICMP checksum field. -func (b ICMPv6) SetChecksum(cs uint16) { - checksum.Put(b[ICMPv6ChecksumOffset:], cs) -} - -// SourcePort implements Transport.SourcePort. -func (ICMPv6) SourcePort() uint16 { - return 0 -} - -// DestinationPort implements Transport.DestinationPort. -func (ICMPv6) DestinationPort() uint16 { - return 0 -} - -// SetSourcePort implements Transport.SetSourcePort. -func (ICMPv6) SetSourcePort(uint16) { -} - -// SetDestinationPort implements Transport.SetDestinationPort. -func (ICMPv6) SetDestinationPort(uint16) { -} - -// MTU retrieves the MTU field from an ICMPv6 message. -func (b ICMPv6) MTU() uint32 { - return binary.BigEndian.Uint32(b[icmpv6MTUOffset:]) -} - -// SetMTU sets the MTU field from an ICMPv6 message. -func (b ICMPv6) SetMTU(mtu uint32) { - binary.BigEndian.PutUint32(b[icmpv6MTUOffset:], mtu) -} - -// Ident retrieves the Ident field from an ICMPv6 message. -func (b ICMPv6) Ident() uint16 { - return binary.BigEndian.Uint16(b[icmpv6IdentOffset:]) -} - -// SetIdent sets the Ident field from an ICMPv6 message. -func (b ICMPv6) SetIdent(ident uint16) { - binary.BigEndian.PutUint16(b[icmpv6IdentOffset:], ident) -} - -// SetIdentWithChecksumUpdate sets the Ident field and updates the checksum. -func (b ICMPv6) SetIdentWithChecksumUpdate(new uint16) { - old := b.Ident() - b.SetIdent(new) - b.SetChecksum(^checksumUpdate2ByteAlignedUint16(^b.Checksum(), old, new)) -} - -// Sequence retrieves the Sequence field from an ICMPv6 message. -func (b ICMPv6) Sequence() uint16 { - return binary.BigEndian.Uint16(b[icmpv6SequenceOffset:]) -} - -// SetSequence sets the Sequence field from an ICMPv6 message. -func (b ICMPv6) SetSequence(sequence uint16) { - binary.BigEndian.PutUint16(b[icmpv6SequenceOffset:], sequence) -} - -// MessageBody returns the message body as defined by RFC 4443 section 2.1; the -// portion of the ICMPv6 buffer after the first ICMPv6HeaderSize bytes. -func (b ICMPv6) MessageBody() []byte { - return b[ICMPv6HeaderSize:] -} - -// Payload implements Transport.Payload. -func (b ICMPv6) Payload() []byte { - return b[ICMPv6PayloadOffset:] -} - -// ICMPv6ChecksumParams contains parameters to calculate ICMPv6 checksum. -type ICMPv6ChecksumParams struct { - Header ICMPv6 - Src tcpip.Address - Dst tcpip.Address - PayloadCsum uint16 - PayloadLen int -} - -// ICMPv6Checksum calculates the ICMP checksum over the provided ICMPv6 header, -// IPv6 src/dst addresses and the payload. -func ICMPv6Checksum(params ICMPv6ChecksumParams) uint16 { - h := params.Header - - xsum := PseudoHeaderChecksum(ICMPv6ProtocolNumber, params.Src, params.Dst, uint16(len(h)+params.PayloadLen)) - xsum = checksum.Combine(xsum, params.PayloadCsum) - - // h[2:4] is the checksum itself, skip it to avoid checksumming the checksum. - xsum = checksum.Checksum(h[:2], xsum) - xsum = checksum.Checksum(h[4:], xsum) - - return ^xsum -} - -// UpdateChecksumPseudoHeaderAddress updates the checksum to reflect an -// updated address in the pseudo header. -func (b ICMPv6) UpdateChecksumPseudoHeaderAddress(old, new tcpip.Address) { - b.SetChecksum(^checksumUpdate2ByteAlignedAddress(^b.Checksum(), old, new)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/igmp.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/igmp.go deleted file mode 100644 index 555ab52e54..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/igmp.go +++ /dev/null @@ -1,185 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "encoding/binary" - "fmt" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/checksum" -) - -// IGMP represents an IGMP header stored in a byte array. -type IGMP []byte - -// IGMP implements `Transport`. -var _ Transport = (*IGMP)(nil) - -const ( - // IGMPMinimumSize is the minimum size of a valid IGMP packet in bytes, - // as per RFC 2236, Section 2, Page 2. - IGMPMinimumSize = 8 - - // IGMPQueryMinimumSize is the minimum size of a valid Membership Query - // Message in bytes, as per RFC 2236, Section 2, Page 2. - IGMPQueryMinimumSize = 8 - - // IGMPReportMinimumSize is the minimum size of a valid Report Message in - // bytes, as per RFC 2236, Section 2, Page 2. - IGMPReportMinimumSize = 8 - - // IGMPLeaveMessageMinimumSize is the minimum size of a valid Leave Message - // in bytes, as per RFC 2236, Section 2, Page 2. - IGMPLeaveMessageMinimumSize = 8 - - // IGMPTTL is the TTL for all IGMP messages, as per RFC 2236, Section 3, Page - // 3. - IGMPTTL = 1 - - // igmpTypeOffset defines the offset of the type field in an IGMP message. - igmpTypeOffset = 0 - - // igmpMaxRespTimeOffset defines the offset of the MaxRespTime field in an - // IGMP message. - igmpMaxRespTimeOffset = 1 - - // igmpChecksumOffset defines the offset of the checksum field in an IGMP - // message. - igmpChecksumOffset = 2 - - // igmpGroupAddressOffset defines the offset of the Group Address field in an - // IGMP message. - igmpGroupAddressOffset = 4 - - // IGMPProtocolNumber is IGMP's transport protocol number. - IGMPProtocolNumber tcpip.TransportProtocolNumber = 2 -) - -// IGMPType is the IGMP type field as per RFC 2236. -type IGMPType byte - -// Values for the IGMP Type described in RFC 2236 Section 2.1, Page 2. -// Descriptions below come from there. -const ( - // IGMPMembershipQuery indicates that the message type is Membership Query. - // "There are two sub-types of Membership Query messages: - // - General Query, used to learn which groups have members on an - // attached network. - // - Group-Specific Query, used to learn if a particular group - // has any members on an attached network. - // These two messages are differentiated by the Group Address, as - // described in section 1.4 ." - IGMPMembershipQuery IGMPType = 0x11 - // IGMPv1MembershipReport indicates that the message is a Membership Report - // generated by a host using the IGMPv1 protocol: "an additional type of - // message, for backwards-compatibility with IGMPv1" - IGMPv1MembershipReport IGMPType = 0x12 - // IGMPv2MembershipReport indicates that the Message type is a Membership - // Report generated by a host using the IGMPv2 protocol. - IGMPv2MembershipReport IGMPType = 0x16 - // IGMPLeaveGroup indicates that the message type is a Leave Group - // notification message. - IGMPLeaveGroup IGMPType = 0x17 - // IGMPv3MembershipReport indicates that the message type is a IGMPv3 report. - IGMPv3MembershipReport IGMPType = 0x22 -) - -// Type is the IGMP type field. -func (b IGMP) Type() IGMPType { return IGMPType(b[igmpTypeOffset]) } - -// SetType sets the IGMP type field. -func (b IGMP) SetType(t IGMPType) { b[igmpTypeOffset] = byte(t) } - -// MaxRespTime gets the MaxRespTimeField. This is meaningful only in Membership -// Query messages, in other cases it is set to 0 by the sender and ignored by -// the receiver. -func (b IGMP) MaxRespTime() time.Duration { - // As per RFC 2236 section 2.2, - // - // The Max Response Time field is meaningful only in Membership Query - // messages, and specifies the maximum allowed time before sending a - // responding report in units of 1/10 second. In all other messages, it - // is set to zero by the sender and ignored by receivers. - return DecisecondToDuration(uint16(b[igmpMaxRespTimeOffset])) -} - -// SetMaxRespTime sets the MaxRespTimeField. -func (b IGMP) SetMaxRespTime(m byte) { b[igmpMaxRespTimeOffset] = m } - -// Checksum is the IGMP checksum field. -func (b IGMP) Checksum() uint16 { - return binary.BigEndian.Uint16(b[igmpChecksumOffset:]) -} - -// SetChecksum sets the IGMP checksum field. -func (b IGMP) SetChecksum(checksum uint16) { - binary.BigEndian.PutUint16(b[igmpChecksumOffset:], checksum) -} - -// GroupAddress gets the Group Address field. -func (b IGMP) GroupAddress() tcpip.Address { - return tcpip.AddrFrom4([4]byte(b[igmpGroupAddressOffset:][:IPv4AddressSize])) -} - -// SetGroupAddress sets the Group Address field. -func (b IGMP) SetGroupAddress(address tcpip.Address) { - addrBytes := address.As4() - if n := copy(b[igmpGroupAddressOffset:], addrBytes[:]); n != IPv4AddressSize { - panic(fmt.Sprintf("copied %d bytes, expected %d", n, IPv4AddressSize)) - } -} - -// SourcePort implements Transport.SourcePort. -func (IGMP) SourcePort() uint16 { - return 0 -} - -// DestinationPort implements Transport.DestinationPort. -func (IGMP) DestinationPort() uint16 { - return 0 -} - -// SetSourcePort implements Transport.SetSourcePort. -func (IGMP) SetSourcePort(uint16) { -} - -// SetDestinationPort implements Transport.SetDestinationPort. -func (IGMP) SetDestinationPort(uint16) { -} - -// Payload implements Transport.Payload. -func (IGMP) Payload() []byte { - return nil -} - -// IGMPCalculateChecksum calculates the IGMP checksum over the provided IGMP -// header. -func IGMPCalculateChecksum(h IGMP) uint16 { - // The header contains a checksum itself, set it aside to avoid checksumming - // the checksum and replace it afterwards. - existingXsum := h.Checksum() - h.SetChecksum(0) - xsum := ^checksum.Checksum(h, 0) - h.SetChecksum(existingXsum) - return xsum -} - -// DecisecondToDuration converts a value representing deci-seconds to a -// time.Duration. -func DecisecondToDuration(ds uint16) time.Duration { - return time.Duration(ds) * time.Second / 10 -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/igmpv3.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/igmpv3.go deleted file mode 100644 index fb6d86a31b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/igmpv3.go +++ /dev/null @@ -1,502 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "bytes" - "encoding/binary" - "fmt" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -var ( - // IGMPv3RoutersAddress is the address to send IGMPv3 reports to. - // - // As per RFC 3376 section 4.2.14, - // - // Version 3 Reports are sent with an IP destination address of - // 224.0.0.22, to which all IGMPv3-capable multicast routers listen. - IGMPv3RoutersAddress = tcpip.AddrFrom4([4]byte{0xe0, 0x00, 0x00, 0x16}) -) - -const ( - // IGMPv3QueryMinimumSize is the mimum size of a valid IGMPv3 query, - // as per RFC 3376 section 4.1. - IGMPv3QueryMinimumSize = 12 - - igmpv3QueryMaxRespCodeOffset = 1 - igmpv3QueryGroupAddressOffset = 4 - igmpv3QueryResvSQRVOffset = 8 - igmpv3QueryQRVMask = 0b111 - igmpv3QueryQQICOffset = 9 - igmpv3QueryNumberOfSourcesOffset = 10 - igmpv3QuerySourcesOffset = 12 -) - -// IGMPv3Query is an IGMPv3 query message. -// -// As per RFC 3376 section 4.1, -// -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Type = 0x11 | Max Resp Code | Checksum | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Group Address | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Resv |S| QRV | QQIC | Number of Sources (N) | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Source Address [1] | -// +- -+ -// | Source Address [2] | -// +- . -+ -// . . . -// . . . -// +- -+ -// | Source Address [N] | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -type IGMPv3Query IGMP - -// MaximumResponseCode returns the Maximum Response Code. -func (i IGMPv3Query) MaximumResponseCode() uint8 { - return i[igmpv3QueryMaxRespCodeOffset] -} - -// IGMPv3MaximumResponseDelay returns the Maximum Response Delay in an IGMPv3 -// Maximum Response Code. -// -// As per RFC 3376 section 4.1.1, -// -// The Max Resp Code field specifies the maximum time allowed before -// sending a responding report. The actual time allowed, called the Max -// Resp Time, is represented in units of 1/10 second and is derived from -// the Max Resp Code as follows: -// -// If Max Resp Code < 128, Max Resp Time = Max Resp Code -// -// If Max Resp Code >= 128, Max Resp Code represents a floating-point -// value as follows: -// -// 0 1 2 3 4 5 6 7 -// +-+-+-+-+-+-+-+-+ -// |1| exp | mant | -// +-+-+-+-+-+-+-+-+ -// -// Max Resp Time = (mant | 0x10) << (exp + 3) -// -// Small values of Max Resp Time allow IGMPv3 routers to tune the "leave -// latency" (the time between the moment the last host leaves a group -// and the moment the routing protocol is notified that there are no -// more members). Larger values, especially in the exponential range, -// allow tuning of the burstiness of IGMP traffic on a network. -func IGMPv3MaximumResponseDelay(codeRaw uint8) time.Duration { - code := uint16(codeRaw) - if code < 128 { - return DecisecondToDuration(code) - } - - const mantBits = 4 - const expMask = 0b111 - exp := (code >> mantBits) & expMask - mant := code & ((1 << mantBits) - 1) - return DecisecondToDuration((mant | 0x10) << (exp + 3)) -} - -// GroupAddress returns the group address. -func (i IGMPv3Query) GroupAddress() tcpip.Address { - return tcpip.AddrFrom4([4]byte(i[igmpv3QueryGroupAddressOffset:][:IPv4AddressSize])) -} - -// QuerierRobustnessVariable returns the querier's robustness variable. -func (i IGMPv3Query) QuerierRobustnessVariable() uint8 { - return i[igmpv3QueryResvSQRVOffset] & igmpv3QueryQRVMask -} - -// QuerierQueryInterval returns the querier's query interval. -func (i IGMPv3Query) QuerierQueryInterval() time.Duration { - return mldv2AndIGMPv3QuerierQueryCodeToInterval(i[igmpv3QueryQQICOffset]) -} - -// Sources returns an iterator over source addresses in the query. -// -// Returns false if the message cannot hold the expected number of sources. -func (i IGMPv3Query) Sources() (AddressIterator, bool) { - return makeAddressIterator( - i[igmpv3QuerySourcesOffset:], - binary.BigEndian.Uint16(i[igmpv3QueryNumberOfSourcesOffset:]), - IPv4AddressSize, - ) -} - -// IGMPv3ReportRecordType is the type of an IGMPv3 multicast address record -// found in an IGMPv3 report, as per RFC 3810 section 5.2.12. -type IGMPv3ReportRecordType int - -// IGMPv3 multicast address record types, as per RFC 3810 section 5.2.12. -const ( - IGMPv3ReportRecordModeIsInclude IGMPv3ReportRecordType = 1 - IGMPv3ReportRecordModeIsExclude IGMPv3ReportRecordType = 2 - IGMPv3ReportRecordChangeToIncludeMode IGMPv3ReportRecordType = 3 - IGMPv3ReportRecordChangeToExcludeMode IGMPv3ReportRecordType = 4 - IGMPv3ReportRecordAllowNewSources IGMPv3ReportRecordType = 5 - IGMPv3ReportRecordBlockOldSources IGMPv3ReportRecordType = 6 -) - -const ( - igmpv3ReportGroupAddressRecordMinimumSize = 8 - igmpv3ReportGroupAddressRecordTypeOffset = 0 - igmpv3ReportGroupAddressRecordAuxDataLenOffset = 1 - igmpv3ReportGroupAddressRecordAuxDataLenUnits = 4 - igmpv3ReportGroupAddressRecordNumberOfSourcesOffset = 2 - igmpv3ReportGroupAddressRecordGroupAddressOffset = 4 - igmpv3ReportGroupAddressRecordSourcesOffset = 8 -) - -// IGMPv3ReportGroupAddressRecordSerializer is an IGMPv3 Multicast Address -// Record serializer. -// -// As per RFC 3810 section 5.2, a Multicast Address Record has the following -// internal format: -// -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Record Type | Aux Data Len | Number of Sources (N) | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// * * -// | | -// * Multicast Address * -// | | -// * * -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// * * -// | | -// * Source Address [1] * -// | | -// * * -// | | -// +- -+ -// | | -// * * -// | | -// * Source Address [2] * -// | | -// * * -// | | -// +- -+ -// . . . -// . . . -// . . . -// +- -+ -// | | -// * * -// | | -// * Source Address [N] * -// | | -// * * -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Auxiliary Data . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -type IGMPv3ReportGroupAddressRecordSerializer struct { - RecordType IGMPv3ReportRecordType - GroupAddress tcpip.Address - Sources []tcpip.Address -} - -// Length returns the number of bytes this serializer would occupy. -func (s *IGMPv3ReportGroupAddressRecordSerializer) Length() int { - return igmpv3ReportGroupAddressRecordSourcesOffset + len(s.Sources)*IPv4AddressSize -} - -func copyIPv4Address(dst []byte, src tcpip.Address) { - srcBytes := src.As4() - if n := copy(dst, srcBytes[:]); n != IPv4AddressSize { - panic(fmt.Sprintf("got copy(...) = %d, want = %d", n, IPv4AddressSize)) - } -} - -// SerializeInto serializes the record into the buffer. -// -// Panics if the buffer does not have enough space to fit the record. -func (s *IGMPv3ReportGroupAddressRecordSerializer) SerializeInto(b []byte) { - b[igmpv3ReportGroupAddressRecordTypeOffset] = byte(s.RecordType) - b[igmpv3ReportGroupAddressRecordAuxDataLenOffset] = 0 - binary.BigEndian.PutUint16(b[igmpv3ReportGroupAddressRecordNumberOfSourcesOffset:], uint16(len(s.Sources))) - copyIPv4Address(b[igmpv3ReportGroupAddressRecordGroupAddressOffset:], s.GroupAddress) - b = b[igmpv3ReportGroupAddressRecordSourcesOffset:] - for _, source := range s.Sources { - copyIPv4Address(b, source) - b = b[IPv4AddressSize:] - } -} - -const ( - igmpv3ReportTypeOffset = 0 - igmpv3ReportReserved1Offset = 1 - igmpv3ReportReserved2Offset = 4 - igmpv3ReportNumberOfGroupAddressRecordsOffset = 6 - igmpv3ReportGroupAddressRecordsOffset = 8 -) - -// IGMPv3ReportSerializer is an MLD Version 2 Report serializer. -// -// As per RFC 3810 section 5.2, -// -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Type = 143 | Reserved | Checksum | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Reserved |Nr of Mcast Address Records (M)| -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Multicast Address Record [1] . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Multicast Address Record [2] . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | . | -// . . . -// | . | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Multicast Address Record [M] . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -type IGMPv3ReportSerializer struct { - Records []IGMPv3ReportGroupAddressRecordSerializer -} - -// Length returns the number of bytes this serializer would occupy. -func (s *IGMPv3ReportSerializer) Length() int { - ret := igmpv3ReportGroupAddressRecordsOffset - for _, record := range s.Records { - ret += record.Length() - } - return ret -} - -// SerializeInto serializes the report into the buffer. -// -// Panics if the buffer does not have enough space to fit the report. -func (s *IGMPv3ReportSerializer) SerializeInto(b []byte) { - b[igmpv3ReportTypeOffset] = byte(IGMPv3MembershipReport) - b[igmpv3ReportReserved1Offset] = 0 - binary.BigEndian.PutUint16(b[igmpv3ReportReserved2Offset:], 0) - binary.BigEndian.PutUint16(b[igmpv3ReportNumberOfGroupAddressRecordsOffset:], uint16(len(s.Records))) - recordsBytes := b[igmpv3ReportGroupAddressRecordsOffset:] - for _, record := range s.Records { - len := record.Length() - record.SerializeInto(recordsBytes[:len]) - recordsBytes = recordsBytes[len:] - } - binary.BigEndian.PutUint16(b[igmpChecksumOffset:], IGMPCalculateChecksum(b)) -} - -// IGMPv3ReportGroupAddressRecord is an IGMPv3 record. -// -// As per RFC 3810 section 5.2, a Multicast Address Record has the following -// internal format: -// -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Record Type | Aux Data Len | Number of Sources (N) | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// * * -// | | -// * Multicast Address * -// | | -// * * -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// * * -// | | -// * Source Address [1] * -// | | -// * * -// | | -// +- -+ -// | | -// * * -// | | -// * Source Address [2] * -// | | -// * * -// | | -// +- -+ -// . . . -// . . . -// . . . -// +- -+ -// | | -// * * -// | | -// * Source Address [N] * -// | | -// * * -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Auxiliary Data . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -type IGMPv3ReportGroupAddressRecord []byte - -// RecordType returns the type of this record. -func (r IGMPv3ReportGroupAddressRecord) RecordType() IGMPv3ReportRecordType { - return IGMPv3ReportRecordType(r[igmpv3ReportGroupAddressRecordTypeOffset]) -} - -// AuxDataLen returns the length of the auxiliary data in this record. -func (r IGMPv3ReportGroupAddressRecord) AuxDataLen() int { - return int(r[igmpv3ReportGroupAddressRecordAuxDataLenOffset]) * igmpv3ReportGroupAddressRecordAuxDataLenUnits -} - -// numberOfSources returns the number of sources in this record. -func (r IGMPv3ReportGroupAddressRecord) numberOfSources() uint16 { - return binary.BigEndian.Uint16(r[igmpv3ReportGroupAddressRecordNumberOfSourcesOffset:]) -} - -// GroupAddress returns the multicast address this record targets. -func (r IGMPv3ReportGroupAddressRecord) GroupAddress() tcpip.Address { - return tcpip.AddrFrom4([4]byte(r[igmpv3ReportGroupAddressRecordGroupAddressOffset:][:IPv4AddressSize])) -} - -// Sources returns an iterator over source addresses in the query. -// -// Returns false if the message cannot hold the expected number of sources. -func (r IGMPv3ReportGroupAddressRecord) Sources() (AddressIterator, bool) { - expectedLen := int(r.numberOfSources()) * IPv4AddressSize - b := r[igmpv3ReportGroupAddressRecordSourcesOffset:] - if len(b) < expectedLen { - return AddressIterator{}, false - } - return AddressIterator{addressSize: IPv4AddressSize, buf: bytes.NewBuffer(b[:expectedLen])}, true -} - -// IGMPv3Report is an IGMPv3 Report. -// -// As per RFC 3810 section 5.2, -// -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Type = 143 | Reserved | Checksum | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Reserved |Nr of Mcast Address Records (M)| -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Multicast Address Record [1] . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Multicast Address Record [2] . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | . | -// . . . -// | . | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Multicast Address Record [M] . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -type IGMPv3Report []byte - -// Checksum returns the checksum. -func (i IGMPv3Report) Checksum() uint16 { - return binary.BigEndian.Uint16(i[igmpChecksumOffset:]) -} - -// IGMPv3ReportGroupAddressRecordIterator is an iterator over IGMPv3 Multicast -// Address Records. -type IGMPv3ReportGroupAddressRecordIterator struct { - recordsLeft uint16 - buf *bytes.Buffer -} - -// IGMPv3ReportGroupAddressRecordIteratorNextDisposition is the possible -// return values from IGMPv3ReportGroupAddressRecordIterator.Next. -type IGMPv3ReportGroupAddressRecordIteratorNextDisposition int - -const ( - // IGMPv3ReportGroupAddressRecordIteratorNextOk indicates that a multicast - // address record was yielded. - IGMPv3ReportGroupAddressRecordIteratorNextOk IGMPv3ReportGroupAddressRecordIteratorNextDisposition = iota - - // IGMPv3ReportGroupAddressRecordIteratorNextDone indicates that the iterator - // has been exhausted. - IGMPv3ReportGroupAddressRecordIteratorNextDone - - // IGMPv3ReportGroupAddressRecordIteratorNextErrBufferTooShort indicates - // that the iterator expected another record, but the buffer ended - // prematurely. - IGMPv3ReportGroupAddressRecordIteratorNextErrBufferTooShort -) - -// Next returns the next IGMPv3 Multicast Address Record. -func (it *IGMPv3ReportGroupAddressRecordIterator) Next() (IGMPv3ReportGroupAddressRecord, IGMPv3ReportGroupAddressRecordIteratorNextDisposition) { - if it.recordsLeft == 0 { - return IGMPv3ReportGroupAddressRecord{}, IGMPv3ReportGroupAddressRecordIteratorNextDone - } - if it.buf.Len() < igmpv3ReportGroupAddressRecordMinimumSize { - return IGMPv3ReportGroupAddressRecord{}, IGMPv3ReportGroupAddressRecordIteratorNextErrBufferTooShort - } - - hdr := IGMPv3ReportGroupAddressRecord(it.buf.Bytes()) - expectedLen := igmpv3ReportGroupAddressRecordMinimumSize + - int(hdr.AuxDataLen()) + int(hdr.numberOfSources())*IPv4AddressSize - - bytes := it.buf.Next(expectedLen) - if len(bytes) < expectedLen { - return IGMPv3ReportGroupAddressRecord{}, IGMPv3ReportGroupAddressRecordIteratorNextErrBufferTooShort - } - it.recordsLeft-- - return IGMPv3ReportGroupAddressRecord(bytes), IGMPv3ReportGroupAddressRecordIteratorNextOk -} - -// GroupAddressRecords returns an iterator of IGMPv3 Multicast Address -// Records. -func (i IGMPv3Report) GroupAddressRecords() IGMPv3ReportGroupAddressRecordIterator { - return IGMPv3ReportGroupAddressRecordIterator{ - recordsLeft: binary.BigEndian.Uint16(i[igmpv3ReportNumberOfGroupAddressRecordsOffset:]), - buf: bytes.NewBuffer(i[igmpv3ReportGroupAddressRecordsOffset:]), - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/interfaces.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/interfaces.go deleted file mode 100644 index 3a41adfc4f..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/interfaces.go +++ /dev/null @@ -1,130 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "gvisor.dev/gvisor/pkg/tcpip" -) - -const ( - // MaxIPPacketSize is the maximum supported IP packet size, excluding - // jumbograms. The maximum IPv4 packet size is 64k-1 (total size must fit - // in 16 bits). For IPv6, the payload max size (excluding jumbograms) is - // 64k-1 (also needs to fit in 16 bits). So we use 64k - 1 + 2 * m, where - // m is the minimum IPv6 header size; we leave room for some potential - // IP options. - MaxIPPacketSize = 0xffff + 2*IPv6MinimumSize -) - -// Transport offers generic methods to query and/or update the fields of the -// header of a transport protocol buffer. -type Transport interface { - // SourcePort returns the value of the "source port" field. - SourcePort() uint16 - - // Destination returns the value of the "destination port" field. - DestinationPort() uint16 - - // Checksum returns the value of the "checksum" field. - Checksum() uint16 - - // SetSourcePort sets the value of the "source port" field. - SetSourcePort(uint16) - - // SetDestinationPort sets the value of the "destination port" field. - SetDestinationPort(uint16) - - // SetChecksum sets the value of the "checksum" field. - SetChecksum(uint16) - - // Payload returns the data carried in the transport buffer. - Payload() []byte -} - -// ChecksummableTransport is a Transport that supports checksumming. -type ChecksummableTransport interface { - Transport - - // SetSourcePortWithChecksumUpdate sets the source port and updates - // the checksum. - // - // The receiver's checksum must be a fully calculated checksum. - SetSourcePortWithChecksumUpdate(port uint16) - - // SetDestinationPortWithChecksumUpdate sets the destination port and updates - // the checksum. - // - // The receiver's checksum must be a fully calculated checksum. - SetDestinationPortWithChecksumUpdate(port uint16) - - // UpdateChecksumPseudoHeaderAddress updates the checksum to reflect an - // updated address in the pseudo header. - // - // If fullChecksum is true, the receiver's checksum field is assumed to hold a - // fully calculated checksum. Otherwise, it is assumed to hold a partially - // calculated checksum which only reflects the pseudo header. - UpdateChecksumPseudoHeaderAddress(old, new tcpip.Address, fullChecksum bool) -} - -// Network offers generic methods to query and/or update the fields of the -// header of a network protocol buffer. -type Network interface { - // SourceAddress returns the value of the "source address" field. - SourceAddress() tcpip.Address - - // DestinationAddress returns the value of the "destination address" - // field. - DestinationAddress() tcpip.Address - - // Checksum returns the value of the "checksum" field. - Checksum() uint16 - - // SetSourceAddress sets the value of the "source address" field. - SetSourceAddress(tcpip.Address) - - // SetDestinationAddress sets the value of the "destination address" - // field. - SetDestinationAddress(tcpip.Address) - - // SetChecksum sets the value of the "checksum" field. - SetChecksum(uint16) - - // TransportProtocol returns the number of the transport protocol - // stored in the payload. - TransportProtocol() tcpip.TransportProtocolNumber - - // Payload returns a byte slice containing the payload of the network - // packet. - Payload() []byte - - // TOS returns the values of the "type of service" and "flow label" fields. - TOS() (uint8, uint32) - - // SetTOS sets the values of the "type of service" and "flow label" fields. - SetTOS(t uint8, l uint32) -} - -// ChecksummableNetwork is a Network that supports checksumming. -type ChecksummableNetwork interface { - Network - - // SetSourceAddressAndChecksum sets the source address and updates the - // checksum to reflect the new address. - SetSourceAddressWithChecksumUpdate(tcpip.Address) - - // SetDestinationAddressAndChecksum sets the destination address and - // updates the checksum to reflect the new address. - SetDestinationAddressWithChecksumUpdate(tcpip.Address) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ipv4.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ipv4.go deleted file mode 100644 index d6801199ab..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ipv4.go +++ /dev/null @@ -1,1201 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "encoding/binary" - "fmt" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/checksum" -) - -// RFC 971 defines the fields of the IPv4 header on page 11 using the following -// diagram: ("Figure 4") -// -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// |Version| IHL |Type of Service| Total Length | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Identification |Flags| Fragment Offset | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Time to Live | Protocol | Header Checksum | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Source Address | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Destination Address | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Options | Padding | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -const ( - versIHL = 0 - tos = 1 - // IPv4TotalLenOffset is the offset of the total length field in the - // IPv4 header. - IPv4TotalLenOffset = 2 - id = 4 - flagsFO = 6 - ttl = 8 - protocol = 9 - xsum = 10 - srcAddr = 12 - dstAddr = 16 - options = 20 -) - -// IPv4Fields contains the fields of an IPv4 packet. It is used to describe the -// fields of a packet that needs to be encoded. The IHL field is not here as -// it is totally defined by the size of the options. -type IPv4Fields struct { - // TOS is the "type of service" field of an IPv4 packet. - TOS uint8 - - // TotalLength is the "total length" field of an IPv4 packet. - TotalLength uint16 - - // ID is the "identification" field of an IPv4 packet. - ID uint16 - - // Flags is the "flags" field of an IPv4 packet. - Flags uint8 - - // FragmentOffset is the "fragment offset" field of an IPv4 packet. - FragmentOffset uint16 - - // TTL is the "time to live" field of an IPv4 packet. - TTL uint8 - - // Protocol is the "protocol" field of an IPv4 packet. - Protocol uint8 - - // Checksum is the "checksum" field of an IPv4 packet. - Checksum uint16 - - // SrcAddr is the "source ip address" of an IPv4 packet. - SrcAddr tcpip.Address - - // DstAddr is the "destination ip address" of an IPv4 packet. - DstAddr tcpip.Address - - // Options must be 40 bytes or less as they must fit along with the - // rest of the IPv4 header into the maximum size describable in the - // IHL field. RFC 791 section 3.1 says: - // IHL: 4 bits - // - // Internet Header Length is the length of the internet header in 32 - // bit words, and thus points to the beginning of the data. Note that - // the minimum value for a correct header is 5. - // - // That leaves ten 32 bit (4 byte) fields for options. An attempt to encode - // more will fail. - Options IPv4OptionsSerializer -} - -// IPv4 is an IPv4 header. -// Most of the methods of IPv4 access to the underlying slice without -// checking the boundaries and could panic because of 'index out of range'. -// Always call IsValid() to validate an instance of IPv4 before using other -// methods. -type IPv4 []byte - -const ( - // IPv4MinimumSize is the minimum size of a valid IPv4 packet; - // i.e. a packet header with no options. - IPv4MinimumSize = 20 - - // IPv4MaximumHeaderSize is the maximum size of an IPv4 header. Given - // that there are only 4 bits (max 0xF (15)) to represent the header length - // in 32-bit (4 byte) units, the header cannot exceed 15*4 = 60 bytes. - IPv4MaximumHeaderSize = 60 - - // IPv4MaximumOptionsSize is the largest size the IPv4 options can be. - IPv4MaximumOptionsSize = IPv4MaximumHeaderSize - IPv4MinimumSize - - // IPv4MaximumPayloadSize is the maximum size of a valid IPv4 payload. - // - // Linux limits this to 65,515 octets (the max IP datagram size - the IPv4 - // header size). But RFC 791 section 3.2 discusses the design of the IPv4 - // fragment "allows 2**13 = 8192 fragments of 8 octets each for a total of - // 65,536 octets. Note that this is consistent with the datagram total - // length field (of course, the header is counted in the total length and not - // in the fragments)." - IPv4MaximumPayloadSize = 65536 - - // MinIPFragmentPayloadSize is the minimum number of payload bytes that - // the first fragment must carry when an IPv4 packet is fragmented. - MinIPFragmentPayloadSize = 8 - - // IPv4AddressSize is the size, in bytes, of an IPv4 address. - IPv4AddressSize = 4 - - // IPv4AddressSizeBits is the size, in bits, of an IPv4 address. - IPv4AddressSizeBits = 32 - - // IPv4ProtocolNumber is IPv4's network protocol number. - IPv4ProtocolNumber tcpip.NetworkProtocolNumber = 0x0800 - - // IPv4Version is the version of the IPv4 protocol. - IPv4Version = 4 - - // IPv4MinimumProcessableDatagramSize is the minimum size of an IP - // packet that every IPv4 capable host must be able to - // process/reassemble. - IPv4MinimumProcessableDatagramSize = 576 - - // IPv4MinimumMTU is the minimum MTU required by IPv4, per RFC 791, - // section 3.2: - // Every internet module must be able to forward a datagram of 68 octets - // without further fragmentation. This is because an internet header may be - // up to 60 octets, and the minimum fragment is 8 octets. - IPv4MinimumMTU = 68 -) - -var ( - // IPv4AllSystems is the all systems IPv4 multicast address as per - // IANA's IPv4 Multicast Address Space Registry. See - // https://www.iana.org/assignments/multicast-addresses/multicast-addresses.xhtml. - IPv4AllSystems = tcpip.AddrFrom4([4]byte{0xe0, 0x00, 0x00, 0x01}) - - // IPv4Broadcast is the broadcast address of the IPv4 procotol. - IPv4Broadcast = tcpip.AddrFrom4([4]byte{0xff, 0xff, 0xff, 0xff}) - - // IPv4Any is the non-routable IPv4 "any" meta address. - IPv4Any = tcpip.AddrFrom4([4]byte{0x00, 0x00, 0x00, 0x00}) - - // IPv4AllRoutersGroup is a multicast address for all routers. - IPv4AllRoutersGroup = tcpip.AddrFrom4([4]byte{0xe0, 0x00, 0x00, 0x02}) - - // IPv4Loopback is the loopback IPv4 address. - IPv4Loopback = tcpip.AddrFrom4([4]byte{0x7f, 0x00, 0x00, 0x01}) -) - -// Flags that may be set in an IPv4 packet. -const ( - IPv4FlagMoreFragments = 1 << iota - IPv4FlagDontFragment -) - -// ipv4LinkLocalUnicastSubnet is the IPv4 link local unicast subnet as defined -// by RFC 3927 section 1. -var ipv4LinkLocalUnicastSubnet = func() tcpip.Subnet { - subnet, err := tcpip.NewSubnet(tcpip.AddrFrom4([4]byte{0xa9, 0xfe, 0x00, 0x00}), tcpip.MaskFrom("\xff\xff\x00\x00")) - if err != nil { - panic(err) - } - return subnet -}() - -// ipv4LinkLocalMulticastSubnet is the IPv4 link local multicast subnet as -// defined by RFC 5771 section 4. -var ipv4LinkLocalMulticastSubnet = func() tcpip.Subnet { - subnet, err := tcpip.NewSubnet(tcpip.AddrFrom4([4]byte{0xe0, 0x00, 0x00, 0x00}), tcpip.MaskFrom("\xff\xff\xff\x00")) - if err != nil { - panic(err) - } - return subnet -}() - -// IPv4EmptySubnet is the empty IPv4 subnet. -var IPv4EmptySubnet = func() tcpip.Subnet { - subnet, err := tcpip.NewSubnet(IPv4Any, tcpip.MaskFrom("\x00\x00\x00\x00")) - if err != nil { - panic(err) - } - return subnet -}() - -// IPv4CurrentNetworkSubnet is the subnet of addresses for the current network, -// per RFC 6890 section 2.2.2, -// -// +----------------------+----------------------------+ -// | Attribute | Value | -// +----------------------+----------------------------+ -// | Address Block | 0.0.0.0/8 | -// | Name | "This host on this network"| -// | RFC | [RFC1122], Section 3.2.1.3 | -// | Allocation Date | September 1981 | -// | Termination Date | N/A | -// | Source | True | -// | Destination | False | -// | Forwardable | False | -// | Global | False | -// | Reserved-by-Protocol | True | -// +----------------------+----------------------------+ -var IPv4CurrentNetworkSubnet = func() tcpip.Subnet { - subnet, err := tcpip.NewSubnet(IPv4Any, tcpip.MaskFrom("\xff\x00\x00\x00")) - if err != nil { - panic(err) - } - return subnet -}() - -// IPv4LoopbackSubnet is the loopback subnet for IPv4. -var IPv4LoopbackSubnet = func() tcpip.Subnet { - subnet, err := tcpip.NewSubnet(tcpip.AddrFrom4([4]byte{0x7f, 0x00, 0x00, 0x00}), tcpip.MaskFrom("\xff\x00\x00\x00")) - if err != nil { - panic(err) - } - return subnet -}() - -// IPVersion returns the version of IP used in the given packet. It returns -1 -// if the packet is not large enough to contain the version field. -func IPVersion(b []byte) int { - // Length must be at least offset+length of version field. - if len(b) < versIHL+1 { - return -1 - } - return int(b[versIHL] >> ipVersionShift) -} - -// RFC 791 page 11 shows the header length (IHL) is in the lower 4 bits -// of the first byte, and is counted in multiples of 4 bytes. -// -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// |Version| IHL |Type of Service| Total Length | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// (...) -// Version: 4 bits -// The Version field indicates the format of the internet header. This -// document describes version 4. -// -// IHL: 4 bits -// Internet Header Length is the length of the internet header in 32 -// bit words, and thus points to the beginning of the data. Note that -// the minimum value for a correct header is 5. -const ( - ipVersionShift = 4 - ipIHLMask = 0x0f - IPv4IHLStride = 4 -) - -// HeaderLength returns the value of the "header length" field of the IPv4 -// header. The length returned is in bytes. -func (b IPv4) HeaderLength() uint8 { - return (b[versIHL] & ipIHLMask) * IPv4IHLStride -} - -// SetHeaderLength sets the value of the "Internet Header Length" field. -func (b IPv4) SetHeaderLength(hdrLen uint8) { - if hdrLen > IPv4MaximumHeaderSize { - panic(fmt.Sprintf("got IPv4 Header size = %d, want <= %d", hdrLen, IPv4MaximumHeaderSize)) - } - b[versIHL] = (IPv4Version << ipVersionShift) | ((hdrLen / IPv4IHLStride) & ipIHLMask) -} - -// ID returns the value of the identifier field of the IPv4 header. -func (b IPv4) ID() uint16 { - return binary.BigEndian.Uint16(b[id:]) -} - -// Protocol returns the value of the protocol field of the IPv4 header. -func (b IPv4) Protocol() uint8 { - return b[protocol] -} - -// Flags returns the "flags" field of the IPv4 header. -func (b IPv4) Flags() uint8 { - return uint8(binary.BigEndian.Uint16(b[flagsFO:]) >> 13) -} - -// More returns whether the more fragments flag is set. -func (b IPv4) More() bool { - return b.Flags()&IPv4FlagMoreFragments != 0 -} - -// TTL returns the "TTL" field of the IPv4 header. -func (b IPv4) TTL() uint8 { - return b[ttl] -} - -// FragmentOffset returns the "fragment offset" field of the IPv4 header. -func (b IPv4) FragmentOffset() uint16 { - return binary.BigEndian.Uint16(b[flagsFO:]) << 3 -} - -// TotalLength returns the "total length" field of the IPv4 header. -func (b IPv4) TotalLength() uint16 { - return binary.BigEndian.Uint16(b[IPv4TotalLenOffset:]) -} - -// Checksum returns the checksum field of the IPv4 header. -func (b IPv4) Checksum() uint16 { - return binary.BigEndian.Uint16(b[xsum:]) -} - -// SourceAddress returns the "source address" field of the IPv4 header. -func (b IPv4) SourceAddress() tcpip.Address { - return tcpip.AddrFrom4([4]byte(b[srcAddr : srcAddr+IPv4AddressSize])) -} - -// DestinationAddress returns the "destination address" field of the IPv4 -// header. -func (b IPv4) DestinationAddress() tcpip.Address { - return tcpip.AddrFrom4([4]byte(b[dstAddr : dstAddr+IPv4AddressSize])) -} - -// SourceAddressSlice returns the "source address" field of the IPv4 header as a -// byte slice. -func (b IPv4) SourceAddressSlice() []byte { - return []byte(b[srcAddr : srcAddr+IPv4AddressSize]) -} - -// DestinationAddressSlice returns the "destination address" field of the IPv4 -// header as a byte slice. -func (b IPv4) DestinationAddressSlice() []byte { - return []byte(b[dstAddr : dstAddr+IPv4AddressSize]) -} - -// SetSourceAddressWithChecksumUpdate implements ChecksummableNetwork. -func (b IPv4) SetSourceAddressWithChecksumUpdate(new tcpip.Address) { - b.SetChecksum(^checksumUpdate2ByteAlignedAddress(^b.Checksum(), b.SourceAddress(), new)) - b.SetSourceAddress(new) -} - -// SetDestinationAddressWithChecksumUpdate implements ChecksummableNetwork. -func (b IPv4) SetDestinationAddressWithChecksumUpdate(new tcpip.Address) { - b.SetChecksum(^checksumUpdate2ByteAlignedAddress(^b.Checksum(), b.DestinationAddress(), new)) - b.SetDestinationAddress(new) -} - -// padIPv4OptionsLength returns the total length for IPv4 options of length l -// after applying padding according to RFC 791: -// -// The internet header padding is used to ensure that the internet -// header ends on a 32 bit boundary. -func padIPv4OptionsLength(length uint8) uint8 { - return (length + IPv4IHLStride - 1) & ^uint8(IPv4IHLStride-1) -} - -// IPv4Options is a buffer that holds all the raw IP options. -type IPv4Options []byte - -// Options returns a buffer holding the options. -func (b IPv4) Options() IPv4Options { - hdrLen := b.HeaderLength() - return IPv4Options(b[options:hdrLen:hdrLen]) -} - -// TransportProtocol implements Network.TransportProtocol. -func (b IPv4) TransportProtocol() tcpip.TransportProtocolNumber { - return tcpip.TransportProtocolNumber(b.Protocol()) -} - -// Payload implements Network.Payload. -func (b IPv4) Payload() []byte { - return b[b.HeaderLength():][:b.PayloadLength()] -} - -// PayloadLength returns the length of the payload portion of the IPv4 packet. -func (b IPv4) PayloadLength() uint16 { - return b.TotalLength() - uint16(b.HeaderLength()) -} - -// TOS returns the "type of service" field of the IPv4 header. -func (b IPv4) TOS() (uint8, uint32) { - return b[tos], 0 -} - -// SetTOS sets the "type of service" field of the IPv4 header. -func (b IPv4) SetTOS(v uint8, _ uint32) { - b[tos] = v -} - -// SetTTL sets the "Time to Live" field of the IPv4 header. -func (b IPv4) SetTTL(v byte) { - b[ttl] = v -} - -// SetTotalLength sets the "total length" field of the IPv4 header. -func (b IPv4) SetTotalLength(totalLength uint16) { - binary.BigEndian.PutUint16(b[IPv4TotalLenOffset:], totalLength) -} - -// SetChecksum sets the checksum field of the IPv4 header. -func (b IPv4) SetChecksum(v uint16) { - checksum.Put(b[xsum:], v) -} - -// SetFlagsFragmentOffset sets the "flags" and "fragment offset" fields of the -// IPv4 header. -func (b IPv4) SetFlagsFragmentOffset(flags uint8, offset uint16) { - v := (uint16(flags) << 13) | (offset >> 3) - binary.BigEndian.PutUint16(b[flagsFO:], v) -} - -// SetID sets the identification field. -func (b IPv4) SetID(v uint16) { - binary.BigEndian.PutUint16(b[id:], v) -} - -// SetSourceAddress sets the "source address" field of the IPv4 header. -func (b IPv4) SetSourceAddress(addr tcpip.Address) { - copy(b[srcAddr:srcAddr+IPv4AddressSize], addr.AsSlice()) -} - -// SetDestinationAddress sets the "destination address" field of the IPv4 -// header. -func (b IPv4) SetDestinationAddress(addr tcpip.Address) { - copy(b[dstAddr:dstAddr+IPv4AddressSize], addr.AsSlice()) -} - -// CalculateChecksum calculates the checksum of the IPv4 header. -func (b IPv4) CalculateChecksum() uint16 { - return checksum.Checksum(b[:b.HeaderLength()], 0) -} - -// Encode encodes all the fields of the IPv4 header. -func (b IPv4) Encode(i *IPv4Fields) { - // The size of the options defines the size of the whole header and thus the - // IHL field. Options are rare and this is a heavily used function so it is - // worth a bit of optimisation here to keep the serializer out of the fast - // path. - hdrLen := uint8(IPv4MinimumSize) - if len(i.Options) != 0 { - hdrLen += i.Options.Serialize(b[options:]) - } - if hdrLen > IPv4MaximumHeaderSize { - panic(fmt.Sprintf("%d is larger than maximum IPv4 header size of %d", hdrLen, IPv4MaximumHeaderSize)) - } - b.SetHeaderLength(hdrLen) - b[tos] = i.TOS - b.SetTotalLength(i.TotalLength) - binary.BigEndian.PutUint16(b[id:], i.ID) - b.SetFlagsFragmentOffset(i.Flags, i.FragmentOffset) - b[ttl] = i.TTL - b[protocol] = i.Protocol - b.SetChecksum(i.Checksum) - copy(b[srcAddr:srcAddr+IPv4AddressSize], i.SrcAddr.AsSlice()) - copy(b[dstAddr:dstAddr+IPv4AddressSize], i.DstAddr.AsSlice()) -} - -// EncodePartial updates the total length and checksum fields of IPv4 header, -// taking in the partial checksum, which is the checksum of the header without -// the total length and checksum fields. It is useful in cases when similar -// packets are produced. -func (b IPv4) EncodePartial(partialChecksum, totalLength uint16) { - b.SetTotalLength(totalLength) - xsum := checksum.Checksum(b[IPv4TotalLenOffset:IPv4TotalLenOffset+2], partialChecksum) - b.SetChecksum(^xsum) -} - -// IsValid performs basic validation on the packet. -func (b IPv4) IsValid(pktSize int) bool { - if len(b) < IPv4MinimumSize { - return false - } - - hlen := int(b.HeaderLength()) - tlen := int(b.TotalLength()) - if hlen < IPv4MinimumSize || hlen > tlen || tlen > pktSize { - return false - } - - if IPVersion(b) != IPv4Version { - return false - } - - return true -} - -// IsV4LinkLocalUnicastAddress determines if the provided address is an IPv4 -// link-local unicast address. -func IsV4LinkLocalUnicastAddress(addr tcpip.Address) bool { - return ipv4LinkLocalUnicastSubnet.Contains(addr) -} - -// IsV4LinkLocalMulticastAddress determines if the provided address is an IPv4 -// link-local multicast address. -func IsV4LinkLocalMulticastAddress(addr tcpip.Address) bool { - return ipv4LinkLocalMulticastSubnet.Contains(addr) -} - -// IsChecksumValid returns true iff the IPv4 header's checksum is valid. -func (b IPv4) IsChecksumValid() bool { - // There has been some confusion regarding verifying checksums. We need - // just look for negative 0 (0xffff) as the checksum, as it's not possible to - // get positive 0 (0) for the checksum. Some bad implementations could get it - // when doing entry replacement in the early days of the Internet, - // however the lore that one needs to check for both persists. - // - // RFC 1624 section 1 describes the source of this confusion as: - // [the partial recalculation method described in RFC 1071] computes a - // result for certain cases that differs from the one obtained from - // scratch (one's complement of one's complement sum of the original - // fields). - // - // However RFC 1624 section 5 clarifies that if using the verification method - // "recommended by RFC 1071, it does not matter if an intermediate system - // generated a -0 instead of +0". - // - // RFC1071 page 1 specifies the verification method as: - // (3) To check a checksum, the 1's complement sum is computed over the - // same set of octets, including the checksum field. If the result - // is all 1 bits (-0 in 1's complement arithmetic), the check - // succeeds. - return b.CalculateChecksum() == 0xffff -} - -// IsV4MulticastAddress determines if the provided address is an IPv4 multicast -// address (range 224.0.0.0 to 239.255.255.255). The four most significant bits -// will be 1110 = 0xe0. -func IsV4MulticastAddress(addr tcpip.Address) bool { - if addr.BitLen() != IPv4AddressSizeBits { - return false - } - addrBytes := addr.As4() - return (addrBytes[0] & 0xf0) == 0xe0 -} - -// IsV4LoopbackAddress determines if the provided address is an IPv4 loopback -// address (belongs to 127.0.0.0/8 subnet). See RFC 1122 section 3.2.1.3. -func IsV4LoopbackAddress(addr tcpip.Address) bool { - if addr.BitLen() != IPv4AddressSizeBits { - return false - } - addrBytes := addr.As4() - return addrBytes[0] == 0x7f -} - -// ========================= Options ========================== - -// An IPv4OptionType can hold the value for the Type in an IPv4 option. -type IPv4OptionType byte - -// These constants are needed to identify individual options in the option list. -// While RFC 791 (page 31) says "Every internet module must be able to act on -// every option." This has not generally been adhered to and some options have -// very low rates of support. We do not support options other than those shown -// below. - -const ( - // IPv4OptionListEndType is the option type for the End Of Option List - // option. Anything following is ignored. - IPv4OptionListEndType IPv4OptionType = 0 - - // IPv4OptionNOPType is the No-Operation option. May appear between other - // options and may appear multiple times. - IPv4OptionNOPType IPv4OptionType = 1 - - // IPv4OptionRouterAlertType is the option type for the Router Alert option, - // defined in RFC 2113 Section 2.1. - IPv4OptionRouterAlertType IPv4OptionType = 20 | 0x80 - - // IPv4OptionRecordRouteType is used by each router on the path of the packet - // to record its path. It is carried over to an Echo Reply. - IPv4OptionRecordRouteType IPv4OptionType = 7 - - // IPv4OptionTimestampType is the option type for the Timestamp option. - IPv4OptionTimestampType IPv4OptionType = 68 - - // ipv4OptionTypeOffset is the offset in an option of its type field. - ipv4OptionTypeOffset = 0 - - // IPv4OptionLengthOffset is the offset in an option of its length field. - IPv4OptionLengthOffset = 1 -) - -// IPv4OptParameterProblem indicates that a Parameter Problem message -// should be generated, and gives the offset in the current entity -// that should be used in that packet. -type IPv4OptParameterProblem struct { - Pointer uint8 - NeedICMP bool -} - -// IPv4Option is an interface representing various option types. -type IPv4Option interface { - // Type returns the type identifier of the option. - Type() IPv4OptionType - - // Size returns the size of the option in bytes. - Size() uint8 - - // Contents returns a slice holding the contents of the option. - Contents() []byte -} - -var _ IPv4Option = (*IPv4OptionGeneric)(nil) - -// IPv4OptionGeneric is an IPv4 Option of unknown type. -type IPv4OptionGeneric []byte - -// Type implements IPv4Option. -func (o *IPv4OptionGeneric) Type() IPv4OptionType { - return IPv4OptionType((*o)[ipv4OptionTypeOffset]) -} - -// Size implements IPv4Option. -func (o *IPv4OptionGeneric) Size() uint8 { return uint8(len(*o)) } - -// Contents implements IPv4Option. -func (o *IPv4OptionGeneric) Contents() []byte { return *o } - -// IPv4OptionIterator is an iterator pointing to a specific IP option -// at any point of time. It also holds information as to a new options buffer -// that we are building up to hand back to the caller. -// TODO(https://gvisor.dev/issues/5513): Add unit tests for IPv4OptionIterator. -type IPv4OptionIterator struct { - options IPv4Options - // ErrCursor is where we are while parsing options. It is exported as any - // resulting ICMP packet is supposed to have a pointer to the byte within - // the IP packet where the error was detected. - ErrCursor uint8 - nextErrCursor uint8 - newOptions [IPv4MaximumOptionsSize]byte - writePoint int -} - -// MakeIterator sets up and returns an iterator of options. It also sets up the -// building of a new option set. -func (o IPv4Options) MakeIterator() IPv4OptionIterator { - return IPv4OptionIterator{ - options: o, - nextErrCursor: IPv4MinimumSize, - } -} - -// InitReplacement copies the option into the new option buffer. -func (i *IPv4OptionIterator) InitReplacement(option IPv4Option) IPv4Options { - replacementOption := i.RemainingBuffer()[:option.Size()] - if copied := copy(replacementOption, option.Contents()); copied != len(replacementOption) { - panic(fmt.Sprintf("copied %d bytes in the replacement option buffer, expected %d bytes", copied, len(replacementOption))) - } - return replacementOption -} - -// RemainingBuffer returns the remaining (unused) part of the new option buffer, -// into which a new option may be written. -func (i *IPv4OptionIterator) RemainingBuffer() IPv4Options { - return i.newOptions[i.writePoint:] -} - -// ConsumeBuffer marks a portion of the new buffer as used. -func (i *IPv4OptionIterator) ConsumeBuffer(size int) { - i.writePoint += size -} - -// PushNOPOrEnd puts one of the single byte options onto the new options. -// Only values 0 or 1 (ListEnd or NOP) are valid input. -func (i *IPv4OptionIterator) PushNOPOrEnd(val IPv4OptionType) { - if val > IPv4OptionNOPType { - panic(fmt.Sprintf("invalid option type %d pushed onto option build buffer", val)) - } - i.newOptions[i.writePoint] = byte(val) - i.writePoint++ -} - -// Finalize returns the completed replacement options buffer padded -// as needed. -func (i *IPv4OptionIterator) Finalize() IPv4Options { - // RFC 791 page 31 says: - // The options might not end on a 32-bit boundary. The internet header - // must be filled out with octets of zeros. The first of these would - // be interpreted as the end-of-options option, and the remainder as - // internet header padding. - // Since the buffer is already zero filled we just need to step the write - // pointer up to the next multiple of 4. - options := IPv4Options(i.newOptions[:(i.writePoint+0x3) & ^0x3]) - // Poison the write pointer. - i.writePoint = len(i.newOptions) - return options -} - -// Next returns the next IP option in the buffer/list of IP options. -// It returns -// - A slice of bytes holding the next option or nil if there is error. -// - A boolean which is true if parsing of all the options is complete. -// Undefined in the case of error. -// - An error indication which is non-nil if an error condition was found. -func (i *IPv4OptionIterator) Next() (IPv4Option, bool, *IPv4OptParameterProblem) { - // The opts slice gets shorter as we process the options. When we have no - // bytes left we are done. - if len(i.options) == 0 { - return nil, true, nil - } - - i.ErrCursor = i.nextErrCursor - - optType := IPv4OptionType(i.options[ipv4OptionTypeOffset]) - - if optType == IPv4OptionNOPType || optType == IPv4OptionListEndType { - optionBody := i.options[:1] - i.options = i.options[1:] - i.nextErrCursor = i.ErrCursor + 1 - retval := IPv4OptionGeneric(optionBody) - return &retval, false, nil - } - - // There are no more single byte options defined. All the rest have a length - // field so we need to sanity check it. - if len(i.options) == 1 { - return nil, false, &IPv4OptParameterProblem{ - Pointer: i.ErrCursor, - NeedICMP: true, - } - } - - optLen := i.options[IPv4OptionLengthOffset] - - if optLen <= IPv4OptionLengthOffset || optLen > uint8(len(i.options)) { - // The actual error is in the length (2nd byte of the option) but we - // return the start of the option for compatibility with Linux. - - return nil, false, &IPv4OptParameterProblem{ - Pointer: i.ErrCursor, - NeedICMP: true, - } - } - - optionBody := i.options[:optLen] - i.nextErrCursor = i.ErrCursor + optLen - i.options = i.options[optLen:] - - // Check the length of some option types that we know. - switch optType { - case IPv4OptionTimestampType: - if optLen < IPv4OptionTimestampHdrLength { - i.ErrCursor++ - return nil, false, &IPv4OptParameterProblem{ - Pointer: i.ErrCursor, - NeedICMP: true, - } - } - retval := IPv4OptionTimestamp(optionBody) - return &retval, false, nil - - case IPv4OptionRecordRouteType: - if optLen < IPv4OptionRecordRouteHdrLength { - i.ErrCursor++ - return nil, false, &IPv4OptParameterProblem{ - Pointer: i.ErrCursor, - NeedICMP: true, - } - } - retval := IPv4OptionRecordRoute(optionBody) - return &retval, false, nil - - case IPv4OptionRouterAlertType: - if optLen != IPv4OptionRouterAlertLength { - i.ErrCursor++ - return nil, false, &IPv4OptParameterProblem{ - Pointer: i.ErrCursor, - NeedICMP: true, - } - } - retval := IPv4OptionRouterAlert(optionBody) - return &retval, false, nil - } - retval := IPv4OptionGeneric(optionBody) - return &retval, false, nil -} - -// -// IP Timestamp option - RFC 791 page 22. -// +--------+--------+--------+--------+ -// |01000100| length | pointer|oflw|flg| -// +--------+--------+--------+--------+ -// | internet address | -// +--------+--------+--------+--------+ -// | timestamp | -// +--------+--------+--------+--------+ -// | ... | -// -// Type = 68 -// -// The Option Length is the number of octets in the option counting -// the type, length, pointer, and overflow/flag octets (maximum -// length 40). -// -// The Pointer is the number of octets from the beginning of this -// option to the end of timestamps plus one (i.e., it points to the -// octet beginning the space for next timestamp). The smallest -// legal value is 5. The timestamp area is full when the pointer -// is greater than the length. -// -// The Overflow (oflw) [4 bits] is the number of IP modules that -// cannot register timestamps due to lack of space. -// -// The Flag (flg) [4 bits] values are -// -// 0 -- time stamps only, stored in consecutive 32-bit words, -// -// 1 -- each timestamp is preceded with internet address of the -// registering entity, -// -// 3 -- the internet address fields are prespecified. An IP -// module only registers its timestamp if it matches its own -// address with the next specified internet address. -// -// Timestamps are defined in RFC 791 page 22 as milliseconds since midnight UTC. -// -// The Timestamp is a right-justified, 32-bit timestamp in -// milliseconds since midnight UT. If the time is not available in -// milliseconds or cannot be provided with respect to midnight UT -// then any time may be inserted as a timestamp provided the high -// order bit of the timestamp field is set to one to indicate the -// use of a non-standard value. - -// IPv4OptTSFlags sefines the values expected in the Timestamp -// option Flags field. -type IPv4OptTSFlags uint8 - -// Timestamp option specific related constants. -const ( - // IPv4OptionTimestampHdrLength is the length of the timestamp option header. - IPv4OptionTimestampHdrLength = 4 - - // IPv4OptionTimestampSize is the size of an IP timestamp. - IPv4OptionTimestampSize = 4 - - // IPv4OptionTimestampWithAddrSize is the size of an IP timestamp + Address. - IPv4OptionTimestampWithAddrSize = IPv4AddressSize + IPv4OptionTimestampSize - - // IPv4OptionTimestampMaxSize is limited by space for options - IPv4OptionTimestampMaxSize = IPv4MaximumOptionsSize - - // IPv4OptionTimestampOnlyFlag is a flag indicating that only timestamp - // is present. - IPv4OptionTimestampOnlyFlag IPv4OptTSFlags = 0 - - // IPv4OptionTimestampWithIPFlag is a flag indicating that both timestamps and - // IP are present. - IPv4OptionTimestampWithIPFlag IPv4OptTSFlags = 1 - - // IPv4OptionTimestampWithPredefinedIPFlag is a flag indicating that - // predefined IP is present. - IPv4OptionTimestampWithPredefinedIPFlag IPv4OptTSFlags = 3 -) - -// ipv4TimestampTime provides the current time as specified in RFC 791. -func ipv4TimestampTime(clock tcpip.Clock) uint32 { - // Per RFC 791 page 21: - // The Timestamp is a right-justified, 32-bit timestamp in - // milliseconds since midnight UT. - now := clock.Now().UTC() - midnight := now.Truncate(24 * time.Hour) - return uint32(now.Sub(midnight).Milliseconds()) -} - -// IP Timestamp option fields. -const ( - // IPv4OptTSPointerOffset is the offset of the Timestamp pointer field. - IPv4OptTSPointerOffset = 2 - - // IPv4OptTSPointerOffset is the offset of the combined Flag and Overflow - // fields, (each being 4 bits). - IPv4OptTSOFLWAndFLGOffset = 3 - // These constants define the sub byte fields of the Flag and OverFlow field. - ipv4OptionTimestampOverflowshift = 4 - ipv4OptionTimestampFlagsMask byte = 0x0f -) - -var _ IPv4Option = (*IPv4OptionTimestamp)(nil) - -// IPv4OptionTimestamp is a Timestamp option from RFC 791. -type IPv4OptionTimestamp []byte - -// Type implements IPv4Option.Type(). -func (ts *IPv4OptionTimestamp) Type() IPv4OptionType { return IPv4OptionTimestampType } - -// Size implements IPv4Option. -func (ts *IPv4OptionTimestamp) Size() uint8 { return uint8(len(*ts)) } - -// Contents implements IPv4Option. -func (ts *IPv4OptionTimestamp) Contents() []byte { return *ts } - -// Pointer returns the pointer field in the IP Timestamp option. -func (ts *IPv4OptionTimestamp) Pointer() uint8 { - return (*ts)[IPv4OptTSPointerOffset] -} - -// Flags returns the flags field in the IP Timestamp option. -func (ts *IPv4OptionTimestamp) Flags() IPv4OptTSFlags { - return IPv4OptTSFlags((*ts)[IPv4OptTSOFLWAndFLGOffset] & ipv4OptionTimestampFlagsMask) -} - -// Overflow returns the Overflow field in the IP Timestamp option. -func (ts *IPv4OptionTimestamp) Overflow() uint8 { - return (*ts)[IPv4OptTSOFLWAndFLGOffset] >> ipv4OptionTimestampOverflowshift -} - -// IncOverflow increments the Overflow field in the IP Timestamp option. It -// returns the incremented value. If the return value is 0 then the field -// overflowed. -func (ts *IPv4OptionTimestamp) IncOverflow() uint8 { - (*ts)[IPv4OptTSOFLWAndFLGOffset] += 1 << ipv4OptionTimestampOverflowshift - return ts.Overflow() -} - -// UpdateTimestamp updates the fields of the next free timestamp slot. -func (ts *IPv4OptionTimestamp) UpdateTimestamp(addr tcpip.Address, clock tcpip.Clock) { - slot := (*ts)[ts.Pointer()-1:] - - switch ts.Flags() { - case IPv4OptionTimestampOnlyFlag: - binary.BigEndian.PutUint32(slot, ipv4TimestampTime(clock)) - (*ts)[IPv4OptTSPointerOffset] += IPv4OptionTimestampSize - case IPv4OptionTimestampWithIPFlag: - if n := copy(slot, addr.AsSlice()); n != IPv4AddressSize { - panic(fmt.Sprintf("copied %d bytes, expected %d bytes", n, IPv4AddressSize)) - } - binary.BigEndian.PutUint32(slot[IPv4AddressSize:], ipv4TimestampTime(clock)) - (*ts)[IPv4OptTSPointerOffset] += IPv4OptionTimestampWithAddrSize - case IPv4OptionTimestampWithPredefinedIPFlag: - if tcpip.AddrFrom4([4]byte(slot[:IPv4AddressSize])) == addr { - binary.BigEndian.PutUint32(slot[IPv4AddressSize:], ipv4TimestampTime(clock)) - (*ts)[IPv4OptTSPointerOffset] += IPv4OptionTimestampWithAddrSize - } - } -} - -// RecordRoute option specific related constants. -// -// from RFC 791 page 20: -// -// Record Route -// -// +--------+--------+--------+---------//--------+ -// |00000111| length | pointer| route data | -// +--------+--------+--------+---------//--------+ -// Type=7 -// -// The record route option provides a means to record the route of -// an internet datagram. -// -// The option begins with the option type code. The second octet -// is the option length which includes the option type code and the -// length octet, the pointer octet, and length-3 octets of route -// data. The third octet is the pointer into the route data -// indicating the octet which begins the next area to store a route -// address. The pointer is relative to this option, and the -// smallest legal value for the pointer is 4. -const ( - // IPv4OptionRecordRouteHdrLength is the length of the Record Route option - // header. - IPv4OptionRecordRouteHdrLength = 3 - - // IPv4OptRRPointerOffset is the offset to the pointer field in an RR - // option, which points to the next free slot in the list of addresses. - IPv4OptRRPointerOffset = 2 -) - -var _ IPv4Option = (*IPv4OptionRecordRoute)(nil) - -// IPv4OptionRecordRoute is an IPv4 RecordRoute option defined by RFC 791. -type IPv4OptionRecordRoute []byte - -// Pointer returns the pointer field in the IP RecordRoute option. -func (rr *IPv4OptionRecordRoute) Pointer() uint8 { - return (*rr)[IPv4OptRRPointerOffset] -} - -// StoreAddress stores the given IPv4 address into the next free slot. -func (rr *IPv4OptionRecordRoute) StoreAddress(addr tcpip.Address) { - start := rr.Pointer() - 1 // A one based number. - // start and room checked by caller. - if n := copy((*rr)[start:], addr.AsSlice()); n != IPv4AddressSize { - panic(fmt.Sprintf("copied %d bytes, expected %d bytes", n, IPv4AddressSize)) - } - (*rr)[IPv4OptRRPointerOffset] += IPv4AddressSize -} - -// Type implements IPv4Option. -func (rr *IPv4OptionRecordRoute) Type() IPv4OptionType { return IPv4OptionRecordRouteType } - -// Size implements IPv4Option. -func (rr *IPv4OptionRecordRoute) Size() uint8 { return uint8(len(*rr)) } - -// Contents implements IPv4Option. -func (rr *IPv4OptionRecordRoute) Contents() []byte { return *rr } - -// Router Alert option specific related constants. -// -// from RFC 2113 section 2.1: -// -// +--------+--------+--------+--------+ -// |10010100|00000100| 2 octet value | -// +--------+--------+--------+--------+ -// -// Type: -// Copied flag: 1 (all fragments must carry the option) -// Option class: 0 (control) -// Option number: 20 (decimal) -// -// Length: 4 -// -// Value: A two octet code with the following values: -// 0 - Router shall examine packet -// 1-65535 - Reserved -const ( - // IPv4OptionRouterAlertLength is the length of a Router Alert option. - IPv4OptionRouterAlertLength = 4 - - // IPv4OptionRouterAlertValue is the only permissible value of the 16 bit - // payload of the router alert option. - IPv4OptionRouterAlertValue = 0 - - // IPv4OptionRouterAlertValueOffset is the offset for the value of a - // RouterAlert option. - IPv4OptionRouterAlertValueOffset = 2 -) - -var _ IPv4Option = (*IPv4OptionRouterAlert)(nil) - -// IPv4OptionRouterAlert is an IPv4 RouterAlert option defined by RFC 2113. -type IPv4OptionRouterAlert []byte - -// Type implements IPv4Option. -func (*IPv4OptionRouterAlert) Type() IPv4OptionType { return IPv4OptionRouterAlertType } - -// Size implements IPv4Option. -func (ra *IPv4OptionRouterAlert) Size() uint8 { return uint8(len(*ra)) } - -// Contents implements IPv4Option. -func (ra *IPv4OptionRouterAlert) Contents() []byte { return *ra } - -// Value returns the value of the IPv4OptionRouterAlert. -func (ra *IPv4OptionRouterAlert) Value() uint16 { - return binary.BigEndian.Uint16(ra.Contents()[IPv4OptionRouterAlertValueOffset:]) -} - -// IPv4SerializableOption is an interface to represent serializable IPv4 option -// types. -type IPv4SerializableOption interface { - // optionType returns the type identifier of the option. - optionType() IPv4OptionType -} - -// IPv4SerializableOptionPayload is an interface providing serialization of the -// payload of an IPv4 option. -type IPv4SerializableOptionPayload interface { - // length returns the size of the payload. - length() uint8 - - // serializeInto serializes the payload into the provided byte buffer. - // - // Note, the caller MUST provide a byte buffer with size of at least - // Length. Implementers of this function may assume that the byte buffer - // is of sufficient size. serializeInto MUST panic if the provided byte - // buffer is not of sufficient size. - // - // serializeInto will return the number of bytes that was used to - // serialize the receiver. Implementers must only use the number of - // bytes required to serialize the receiver. Callers MAY provide a - // larger buffer than required to serialize into. - serializeInto(buffer []byte) uint8 -} - -// IPv4OptionsSerializer is a serializer for IPv4 options. -type IPv4OptionsSerializer []IPv4SerializableOption - -// Length returns the total number of bytes required to serialize the options. -func (s IPv4OptionsSerializer) Length() uint8 { - var total uint8 - for _, opt := range s { - total++ - if withPayload, ok := opt.(IPv4SerializableOptionPayload); ok { - // Add 1 to reported length to account for the length byte. - total += 1 + withPayload.length() - } - } - return padIPv4OptionsLength(total) -} - -// Serialize serializes the provided list of IPV4 options into b. -// -// Note, b must be of sufficient size to hold all the options in s. See -// IPv4OptionsSerializer.Length for details on the getting the total size -// of a serialized IPv4OptionsSerializer. -// -// Serialize panics if b is not of sufficient size to hold all the options in s. -func (s IPv4OptionsSerializer) Serialize(b []byte) uint8 { - var total uint8 - for _, opt := range s { - ty := opt.optionType() - if withPayload, ok := opt.(IPv4SerializableOptionPayload); ok { - // Serialize first to reduce bounds checks. - l := 2 + withPayload.serializeInto(b[2:]) - b[0] = byte(ty) - b[1] = l - b = b[l:] - total += l - continue - } - // Options without payload consist only of the type field. - // - // NB: Repeating code from the branch above is intentional to minimize - // bounds checks. - b[0] = byte(ty) - b = b[1:] - total++ - } - - // According to RFC 791: - // - // The internet header padding is used to ensure that the internet - // header ends on a 32 bit boundary. The padding is zero. - padded := padIPv4OptionsLength(total) - b = b[:padded-total] - clear(b) - return padded -} - -var _ IPv4SerializableOptionPayload = (*IPv4SerializableRouterAlertOption)(nil) -var _ IPv4SerializableOption = (*IPv4SerializableRouterAlertOption)(nil) - -// IPv4SerializableRouterAlertOption provides serialization of the Router Alert -// IPv4 option according to RFC 2113. -type IPv4SerializableRouterAlertOption struct{} - -// Type implements IPv4SerializableOption. -func (*IPv4SerializableRouterAlertOption) optionType() IPv4OptionType { - return IPv4OptionRouterAlertType -} - -// Length implements IPv4SerializableOption. -func (*IPv4SerializableRouterAlertOption) length() uint8 { - return IPv4OptionRouterAlertLength - IPv4OptionRouterAlertValueOffset -} - -// SerializeInto implements IPv4SerializableOption. -func (o *IPv4SerializableRouterAlertOption) serializeInto(buffer []byte) uint8 { - binary.BigEndian.PutUint16(buffer, IPv4OptionRouterAlertValue) - return o.length() -} - -var _ IPv4SerializableOption = (*IPv4SerializableNOPOption)(nil) - -// IPv4SerializableNOPOption provides serialization for the IPv4 no-op option. -type IPv4SerializableNOPOption struct{} - -// Type implements IPv4SerializableOption. -func (*IPv4SerializableNOPOption) optionType() IPv4OptionType { - return IPv4OptionNOPType -} - -var _ IPv4SerializableOption = (*IPv4SerializableListEndOption)(nil) - -// IPv4SerializableListEndOption provides serialization for the IPv4 List End -// option. -type IPv4SerializableListEndOption struct{} - -// Type implements IPv4SerializableOption. -func (*IPv4SerializableListEndOption) optionType() IPv4OptionType { - return IPv4OptionListEndType -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ipv6.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ipv6.go deleted file mode 100644 index 4260095c62..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ipv6.go +++ /dev/null @@ -1,597 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "crypto/sha256" - "encoding/binary" - "fmt" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -const ( - versTCFL = 0 - // IPv6PayloadLenOffset is the offset of the PayloadLength field in - // IPv6 header. - IPv6PayloadLenOffset = 4 - // IPv6NextHeaderOffset is the offset of the NextHeader field in - // IPv6 header. - IPv6NextHeaderOffset = 6 - hopLimit = 7 - v6SrcAddr = 8 - v6DstAddr = v6SrcAddr + IPv6AddressSize - - // IPv6FixedHeaderSize is the size of the fixed header. - IPv6FixedHeaderSize = v6DstAddr + IPv6AddressSize -) - -// IPv6Fields contains the fields of an IPv6 packet. It is used to describe the -// fields of a packet that needs to be encoded. -type IPv6Fields struct { - // TrafficClass is the "traffic class" field of an IPv6 packet. - TrafficClass uint8 - - // FlowLabel is the "flow label" field of an IPv6 packet. - FlowLabel uint32 - - // PayloadLength is the "payload length" field of an IPv6 packet, including - // the length of all extension headers. - PayloadLength uint16 - - // TransportProtocol is the transport layer protocol number. Serialized in the - // last "next header" field of the IPv6 header + extension headers. - TransportProtocol tcpip.TransportProtocolNumber - - // HopLimit is the "Hop Limit" field of an IPv6 packet. - HopLimit uint8 - - // SrcAddr is the "source ip address" of an IPv6 packet. - SrcAddr tcpip.Address - - // DstAddr is the "destination ip address" of an IPv6 packet. - DstAddr tcpip.Address - - // ExtensionHeaders are the extension headers following the IPv6 header. - ExtensionHeaders IPv6ExtHdrSerializer -} - -// IPv6 represents an ipv6 header stored in a byte array. -// Most of the methods of IPv6 access to the underlying slice without -// checking the boundaries and could panic because of 'index out of range'. -// Always call IsValid() to validate an instance of IPv6 before using other methods. -type IPv6 []byte - -const ( - // IPv6MinimumSize is the minimum size of a valid IPv6 packet. - IPv6MinimumSize = IPv6FixedHeaderSize - - // IPv6AddressSize is the size, in bytes, of an IPv6 address. - IPv6AddressSize = 16 - - // IPv6AddressSizeBits is the size, in bits, of an IPv6 address. - IPv6AddressSizeBits = 128 - - // IPv6MaximumPayloadSize is the maximum size of a valid IPv6 payload per - // RFC 8200 Section 4.5. - IPv6MaximumPayloadSize = 65535 - - // IPv6ProtocolNumber is IPv6's network protocol number. - IPv6ProtocolNumber tcpip.NetworkProtocolNumber = 0x86dd - - // IPv6Version is the version of the ipv6 protocol. - IPv6Version = 6 - - // IIDSize is the size of an interface identifier (IID), in bytes, as - // defined by RFC 4291 section 2.5.1. - IIDSize = 8 - - // IPv6MinimumMTU is the minimum MTU required by IPv6, per RFC 8200, - // section 5: - // IPv6 requires that every link in the Internet have an MTU of 1280 octets - // or greater. This is known as the IPv6 minimum link MTU. - IPv6MinimumMTU = 1280 - - // IIDOffsetInIPv6Address is the offset, in bytes, from the start - // of an IPv6 address to the beginning of the interface identifier - // (IID) for auto-generated addresses. That is, all bytes before - // the IIDOffsetInIPv6Address-th byte are the prefix bytes, and all - // bytes including and after the IIDOffsetInIPv6Address-th byte are - // for the IID. - IIDOffsetInIPv6Address = 8 - - // OpaqueIIDSecretKeyMinBytes is the recommended minimum number of bytes - // for the secret key used to generate an opaque interface identifier as - // outlined by RFC 7217. - OpaqueIIDSecretKeyMinBytes = 16 - - // ipv6MulticastAddressScopeByteIdx is the byte where the scope (scop) field - // is located within a multicast IPv6 address, as per RFC 4291 section 2.7. - ipv6MulticastAddressScopeByteIdx = 1 - - // ipv6MulticastAddressScopeMask is the mask for the scope (scop) field, - // within the byte holding the field, as per RFC 4291 section 2.7. - ipv6MulticastAddressScopeMask = 0xF -) - -var ( - // IPv6AllNodesMulticastAddress is a link-local multicast group that - // all IPv6 nodes MUST join, as per RFC 4291, section 2.8. Packets - // destined to this address will reach all nodes on a link. - // - // The address is ff02::1. - IPv6AllNodesMulticastAddress = tcpip.AddrFrom16([16]byte{0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}) - - // IPv6AllRoutersInterfaceLocalMulticastAddress is an interface-local - // multicast group that all IPv6 routers MUST join, as per RFC 4291, section - // 2.8. Packets destined to this address will reach the router on an - // interface. - // - // The address is ff01::2. - IPv6AllRoutersInterfaceLocalMulticastAddress = tcpip.AddrFrom16([16]byte{0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02}) - - // IPv6AllRoutersLinkLocalMulticastAddress is a link-local multicast group - // that all IPv6 routers MUST join, as per RFC 4291, section 2.8. Packets - // destined to this address will reach all routers on a link. - // - // The address is ff02::2. - IPv6AllRoutersLinkLocalMulticastAddress = tcpip.AddrFrom16([16]byte{0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02}) - - // IPv6AllRoutersSiteLocalMulticastAddress is a site-local multicast group - // that all IPv6 routers MUST join, as per RFC 4291, section 2.8. Packets - // destined to this address will reach all routers in a site. - // - // The address is ff05::2. - IPv6AllRoutersSiteLocalMulticastAddress = tcpip.AddrFrom16([16]byte{0xff, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02}) - - // IPv6Loopback is the IPv6 Loopback address. - IPv6Loopback = tcpip.AddrFrom16([16]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}) - - // IPv6Any is the non-routable IPv6 "any" meta address. It is also - // known as the unspecified address. - IPv6Any = tcpip.AddrFrom16([16]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}) -) - -// IPv6EmptySubnet is the empty IPv6 subnet. It may also be known as the -// catch-all or wildcard subnet. That is, all IPv6 addresses are considered to -// be contained within this subnet. -var IPv6EmptySubnet = tcpip.AddressWithPrefix{ - Address: IPv6Any, - PrefixLen: 0, -}.Subnet() - -// IPv4MappedIPv6Subnet is the prefix for an IPv4 mapped IPv6 address as defined -// by RFC 4291 section 2.5.5. -var IPv4MappedIPv6Subnet = tcpip.AddressWithPrefix{ - Address: tcpip.AddrFrom16([16]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00}), - PrefixLen: 96, -}.Subnet() - -// IPv6LinkLocalPrefix is the prefix for IPv6 link-local addresses, as defined -// by RFC 4291 section 2.5.6. -// -// The prefix is fe80::/64 -var IPv6LinkLocalPrefix = tcpip.AddressWithPrefix{ - Address: tcpip.AddrFrom16([16]byte{0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}), - PrefixLen: 64, -} - -// PayloadLength returns the value of the "payload length" field of the ipv6 -// header. -func (b IPv6) PayloadLength() uint16 { - return binary.BigEndian.Uint16(b[IPv6PayloadLenOffset:]) -} - -// HopLimit returns the value of the "Hop Limit" field of the ipv6 header. -func (b IPv6) HopLimit() uint8 { - return b[hopLimit] -} - -// NextHeader returns the value of the "next header" field of the ipv6 header. -func (b IPv6) NextHeader() uint8 { - return b[IPv6NextHeaderOffset] -} - -// TransportProtocol implements Network.TransportProtocol. -func (b IPv6) TransportProtocol() tcpip.TransportProtocolNumber { - return tcpip.TransportProtocolNumber(b.NextHeader()) -} - -// Payload implements Network.Payload. -func (b IPv6) Payload() []byte { - return b[IPv6MinimumSize:][:b.PayloadLength()] -} - -// SourceAddress returns the "source address" field of the ipv6 header. -func (b IPv6) SourceAddress() tcpip.Address { - return tcpip.AddrFrom16([16]byte(b[v6SrcAddr:][:IPv6AddressSize])) -} - -// DestinationAddress returns the "destination address" field of the ipv6 -// header. -func (b IPv6) DestinationAddress() tcpip.Address { - return tcpip.AddrFrom16([16]byte(b[v6DstAddr:][:IPv6AddressSize])) -} - -// SourceAddressSlice returns the "source address" field of the ipv6 header as a -// byte slice. -func (b IPv6) SourceAddressSlice() []byte { - return []byte(b[v6SrcAddr:][:IPv6AddressSize]) -} - -// DestinationAddressSlice returns the "destination address" field of the ipv6 -// header as a byte slice. -func (b IPv6) DestinationAddressSlice() []byte { - return []byte(b[v6DstAddr:][:IPv6AddressSize]) -} - -// Checksum implements Network.Checksum. Given that IPv6 doesn't have a -// checksum, it just returns 0. -func (IPv6) Checksum() uint16 { - return 0 -} - -// TOS returns the "traffic class" and "flow label" fields of the ipv6 header. -func (b IPv6) TOS() (uint8, uint32) { - v := binary.BigEndian.Uint32(b[versTCFL:]) - return uint8(v >> 20), v & 0xfffff -} - -// SetTOS sets the "traffic class" and "flow label" fields of the ipv6 header. -func (b IPv6) SetTOS(t uint8, l uint32) { - vtf := (6 << 28) | (uint32(t) << 20) | (l & 0xfffff) - binary.BigEndian.PutUint32(b[versTCFL:], vtf) -} - -// SetPayloadLength sets the "payload length" field of the ipv6 header. -func (b IPv6) SetPayloadLength(payloadLength uint16) { - binary.BigEndian.PutUint16(b[IPv6PayloadLenOffset:], payloadLength) -} - -// SetSourceAddress sets the "source address" field of the ipv6 header. -func (b IPv6) SetSourceAddress(addr tcpip.Address) { - copy(b[v6SrcAddr:][:IPv6AddressSize], addr.AsSlice()) -} - -// SetDestinationAddress sets the "destination address" field of the ipv6 -// header. -func (b IPv6) SetDestinationAddress(addr tcpip.Address) { - copy(b[v6DstAddr:][:IPv6AddressSize], addr.AsSlice()) -} - -// SetHopLimit sets the value of the "Hop Limit" field. -func (b IPv6) SetHopLimit(v uint8) { - b[hopLimit] = v -} - -// SetNextHeader sets the value of the "next header" field of the ipv6 header. -func (b IPv6) SetNextHeader(v uint8) { - b[IPv6NextHeaderOffset] = v -} - -// SetChecksum implements Network.SetChecksum. Given that IPv6 doesn't have a -// checksum, it is empty. -func (IPv6) SetChecksum(uint16) { -} - -// Encode encodes all the fields of the ipv6 header. -func (b IPv6) Encode(i *IPv6Fields) { - extHdr := b[IPv6MinimumSize:] - b.SetTOS(i.TrafficClass, i.FlowLabel) - b.SetPayloadLength(i.PayloadLength) - b[hopLimit] = i.HopLimit - b.SetSourceAddress(i.SrcAddr) - b.SetDestinationAddress(i.DstAddr) - nextHeader, _ := i.ExtensionHeaders.Serialize(i.TransportProtocol, extHdr) - b[IPv6NextHeaderOffset] = nextHeader -} - -// IsValid performs basic validation on the packet. -func (b IPv6) IsValid(pktSize int) bool { - if len(b) < IPv6MinimumSize { - return false - } - - dlen := int(b.PayloadLength()) - if dlen > pktSize-IPv6MinimumSize { - return false - } - - if IPVersion(b) != IPv6Version { - return false - } - - return true -} - -// IsV4MappedAddress determines if the provided address is an IPv4 mapped -// address by checking if its prefix is 0:0:0:0:0:ffff::/96. -func IsV4MappedAddress(addr tcpip.Address) bool { - if addr.BitLen() != IPv6AddressSizeBits { - return false - } - - return IPv4MappedIPv6Subnet.Contains(addr) -} - -// IsV6MulticastAddress determines if the provided address is an IPv6 -// multicast address (anything starting with FF). -func IsV6MulticastAddress(addr tcpip.Address) bool { - if addr.BitLen() != IPv6AddressSizeBits { - return false - } - return addr.As16()[0] == 0xff -} - -// IsV6UnicastAddress determines if the provided address is a valid IPv6 -// unicast (and specified) address. That is, IsV6UnicastAddress returns -// true if addr contains IPv6AddressSize bytes, is not the unspecified -// address and is not a multicast address. -func IsV6UnicastAddress(addr tcpip.Address) bool { - if addr.BitLen() != IPv6AddressSizeBits { - return false - } - - // Must not be unspecified - if addr == IPv6Any { - return false - } - - // Return if not a multicast. - return addr.As16()[0] != 0xff -} - -var solicitedNodeMulticastPrefix = [13]byte{0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff} - -// SolicitedNodeAddr computes the solicited-node multicast address. This is -// used for NDP. Described in RFC 4291. The argument must be a full-length IPv6 -// address. -func SolicitedNodeAddr(addr tcpip.Address) tcpip.Address { - addrBytes := addr.As16() - return tcpip.AddrFrom16([16]byte(append(solicitedNodeMulticastPrefix[:], addrBytes[len(addrBytes)-3:]...))) -} - -// IsSolicitedNodeAddr determines whether the address is a solicited-node -// multicast address. -func IsSolicitedNodeAddr(addr tcpip.Address) bool { - addrBytes := addr.As16() - return solicitedNodeMulticastPrefix == [13]byte(addrBytes[:len(addrBytes)-3]) -} - -// EthernetAdddressToModifiedEUI64IntoBuf populates buf with a modified EUI-64 -// from a 48-bit Ethernet/MAC address, as per RFC 4291 section 2.5.1. -// -// buf MUST be at least 8 bytes. -func EthernetAdddressToModifiedEUI64IntoBuf(linkAddr tcpip.LinkAddress, buf []byte) { - buf[0] = linkAddr[0] ^ 2 - buf[1] = linkAddr[1] - buf[2] = linkAddr[2] - buf[3] = 0xFF - buf[4] = 0xFE - buf[5] = linkAddr[3] - buf[6] = linkAddr[4] - buf[7] = linkAddr[5] -} - -// EthernetAddressToModifiedEUI64 computes a modified EUI-64 from a 48-bit -// Ethernet/MAC address, as per RFC 4291 section 2.5.1. -func EthernetAddressToModifiedEUI64(linkAddr tcpip.LinkAddress) [IIDSize]byte { - var buf [IIDSize]byte - EthernetAdddressToModifiedEUI64IntoBuf(linkAddr, buf[:]) - return buf -} - -// LinkLocalAddr computes the default IPv6 link-local address from a link-layer -// (MAC) address. -func LinkLocalAddr(linkAddr tcpip.LinkAddress) tcpip.Address { - // Convert a 48-bit MAC to a modified EUI-64 and then prepend the - // link-local header, FE80::. - // - // The conversion is very nearly: - // aa:bb:cc:dd:ee:ff => FE80::Aabb:ccFF:FEdd:eeff - // Note the capital A. The conversion aa->Aa involves a bit flip. - lladdrb := [IPv6AddressSize]byte{ - 0: 0xFE, - 1: 0x80, - } - EthernetAdddressToModifiedEUI64IntoBuf(linkAddr, lladdrb[IIDOffsetInIPv6Address:]) - return tcpip.AddrFrom16(lladdrb) -} - -// IsV6LinkLocalUnicastAddress returns true iff the provided address is an IPv6 -// link-local unicast address, as defined by RFC 4291 section 2.5.6. -func IsV6LinkLocalUnicastAddress(addr tcpip.Address) bool { - if addr.BitLen() != IPv6AddressSizeBits { - return false - } - addrBytes := addr.As16() - return addrBytes[0] == 0xfe && (addrBytes[1]&0xc0) == 0x80 -} - -// IsV6LoopbackAddress returns true iff the provided address is an IPv6 loopback -// address, as defined by RFC 4291 section 2.5.3. -func IsV6LoopbackAddress(addr tcpip.Address) bool { - return addr == IPv6Loopback -} - -// IsV6LinkLocalMulticastAddress returns true iff the provided address is an -// IPv6 link-local multicast address, as defined by RFC 4291 section 2.7. -func IsV6LinkLocalMulticastAddress(addr tcpip.Address) bool { - return IsV6MulticastAddress(addr) && V6MulticastScope(addr) == IPv6LinkLocalMulticastScope -} - -// AppendOpaqueInterfaceIdentifier appends a 64 bit opaque interface identifier -// (IID) to buf as outlined by RFC 7217 and returns the extended buffer. -// -// The opaque IID is generated from the cryptographic hash of the concatenation -// of the prefix, NIC's name, DAD counter (DAD retry counter) and the secret -// key. The secret key SHOULD be at least OpaqueIIDSecretKeyMinBytes bytes and -// MUST be generated to a pseudo-random number. See RFC 4086 for randomness -// requirements for security. -// -// If buf has enough capacity for the IID (IIDSize bytes), a new underlying -// array for the buffer will not be allocated. -func AppendOpaqueInterfaceIdentifier(buf []byte, prefix tcpip.Subnet, nicName string, dadCounter uint8, secretKey []byte) []byte { - // As per RFC 7217 section 5, the opaque identifier can be generated as a - // cryptographic hash of the concatenation of each of the function parameters. - // Note, we omit the optional Network_ID field. - h := sha256.New() - // h.Write never returns an error. - prefixID := prefix.ID() - h.Write([]byte(prefixID.AsSlice()[:IIDOffsetInIPv6Address])) - h.Write([]byte(nicName)) - h.Write([]byte{dadCounter}) - h.Write(secretKey) - - var sumBuf [sha256.Size]byte - sum := h.Sum(sumBuf[:0]) - - return append(buf, sum[:IIDSize]...) -} - -// LinkLocalAddrWithOpaqueIID computes the default IPv6 link-local address with -// an opaque IID. -func LinkLocalAddrWithOpaqueIID(nicName string, dadCounter uint8, secretKey []byte) tcpip.Address { - lladdrb := [IPv6AddressSize]byte{ - 0: 0xFE, - 1: 0x80, - } - - return tcpip.AddrFrom16([16]byte(AppendOpaqueInterfaceIdentifier(lladdrb[:IIDOffsetInIPv6Address], IPv6LinkLocalPrefix.Subnet(), nicName, dadCounter, secretKey))) -} - -// IPv6AddressScope is the scope of an IPv6 address. -type IPv6AddressScope int - -const ( - // LinkLocalScope indicates a link-local address. - LinkLocalScope IPv6AddressScope = iota - - // GlobalScope indicates a global address. - GlobalScope -) - -// ScopeForIPv6Address returns the scope for an IPv6 address. -func ScopeForIPv6Address(addr tcpip.Address) (IPv6AddressScope, tcpip.Error) { - if addr.BitLen() != IPv6AddressSizeBits { - return GlobalScope, &tcpip.ErrBadAddress{} - } - - switch { - case IsV6LinkLocalMulticastAddress(addr): - return LinkLocalScope, nil - - case IsV6LinkLocalUnicastAddress(addr): - return LinkLocalScope, nil - - default: - return GlobalScope, nil - } -} - -// InitialTempIID generates the initial temporary IID history value to generate -// temporary SLAAC addresses with. -// -// Panics if initialTempIIDHistory is not at least IIDSize bytes. -func InitialTempIID(initialTempIIDHistory []byte, seed []byte, nicID tcpip.NICID) { - h := sha256.New() - // h.Write never returns an error. - h.Write(seed) - var nicIDBuf [4]byte - binary.BigEndian.PutUint32(nicIDBuf[:], uint32(nicID)) - h.Write(nicIDBuf[:]) - - var sumBuf [sha256.Size]byte - sum := h.Sum(sumBuf[:0]) - - if n := copy(initialTempIIDHistory, sum[sha256.Size-IIDSize:]); n != IIDSize { - panic(fmt.Sprintf("copied %d bytes, expected %d bytes", n, IIDSize)) - } -} - -// GenerateTempIPv6SLAACAddr generates a temporary SLAAC IPv6 address for an -// associated stable/permanent SLAAC address. -// -// GenerateTempIPv6SLAACAddr will update the temporary IID history value to be -// used when generating a new temporary IID. -// -// Panics if tempIIDHistory is not at least IIDSize bytes. -func GenerateTempIPv6SLAACAddr(tempIIDHistory []byte, stableAddr tcpip.Address) tcpip.AddressWithPrefix { - addrBytes := stableAddr.As16() - h := sha256.New() - h.Write(tempIIDHistory) - h.Write(addrBytes[IIDOffsetInIPv6Address:]) - var sumBuf [sha256.Size]byte - sum := h.Sum(sumBuf[:0]) - - // The rightmost 64 bits of sum are saved for the next iteration. - if n := copy(tempIIDHistory, sum[sha256.Size-IIDSize:]); n != IIDSize { - panic(fmt.Sprintf("copied %d bytes, expected %d bytes", n, IIDSize)) - } - - // The leftmost 64 bits of sum is used as the IID. - if n := copy(addrBytes[IIDOffsetInIPv6Address:], sum); n != IIDSize { - panic(fmt.Sprintf("copied %d IID bytes, expected %d bytes", n, IIDSize)) - } - - return tcpip.AddressWithPrefix{ - Address: tcpip.AddrFrom16(addrBytes), - PrefixLen: IIDOffsetInIPv6Address * 8, - } -} - -// IPv6MulticastScope is the scope of a multicast IPv6 address, as defined by -// RFC 7346 section 2. -type IPv6MulticastScope uint8 - -// The various values for IPv6 multicast scopes, as per RFC 7346 section 2: -// -// +------+--------------------------+-------------------------+ -// | scop | NAME | REFERENCE | -// +------+--------------------------+-------------------------+ -// | 0 | Reserved | [RFC4291], RFC 7346 | -// | 1 | Interface-Local scope | [RFC4291], RFC 7346 | -// | 2 | Link-Local scope | [RFC4291], RFC 7346 | -// | 3 | Realm-Local scope | [RFC4291], RFC 7346 | -// | 4 | Admin-Local scope | [RFC4291], RFC 7346 | -// | 5 | Site-Local scope | [RFC4291], RFC 7346 | -// | 6 | Unassigned | | -// | 7 | Unassigned | | -// | 8 | Organization-Local scope | [RFC4291], RFC 7346 | -// | 9 | Unassigned | | -// | A | Unassigned | | -// | B | Unassigned | | -// | C | Unassigned | | -// | D | Unassigned | | -// | E | Global scope | [RFC4291], RFC 7346 | -// | F | Reserved | [RFC4291], RFC 7346 | -// +------+--------------------------+-------------------------+ -const ( - IPv6Reserved0MulticastScope = IPv6MulticastScope(0x0) - IPv6InterfaceLocalMulticastScope = IPv6MulticastScope(0x1) - IPv6LinkLocalMulticastScope = IPv6MulticastScope(0x2) - IPv6RealmLocalMulticastScope = IPv6MulticastScope(0x3) - IPv6AdminLocalMulticastScope = IPv6MulticastScope(0x4) - IPv6SiteLocalMulticastScope = IPv6MulticastScope(0x5) - IPv6OrganizationLocalMulticastScope = IPv6MulticastScope(0x8) - IPv6GlobalMulticastScope = IPv6MulticastScope(0xE) - IPv6ReservedFMulticastScope = IPv6MulticastScope(0xF) -) - -// V6MulticastScope returns the scope of a multicast address. -func V6MulticastScope(addr tcpip.Address) IPv6MulticastScope { - addrBytes := addr.As16() - return IPv6MulticastScope(addrBytes[ipv6MulticastAddressScopeByteIdx] & ipv6MulticastAddressScopeMask) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ipv6_extension_headers.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ipv6_extension_headers.go deleted file mode 100644 index 7f75b82b68..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ipv6_extension_headers.go +++ /dev/null @@ -1,955 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "encoding/binary" - "errors" - "fmt" - "io" - "math" - - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/tcpip" -) - -// IPv6ExtensionHeaderIdentifier is an IPv6 extension header identifier. -type IPv6ExtensionHeaderIdentifier uint8 - -const ( - // IPv6HopByHopOptionsExtHdrIdentifier is the header identifier of a Hop by - // Hop Options extension header, as per RFC 8200 section 4.3. - IPv6HopByHopOptionsExtHdrIdentifier IPv6ExtensionHeaderIdentifier = 0 - - // IPv6RoutingExtHdrIdentifier is the header identifier of a Routing extension - // header, as per RFC 8200 section 4.4. - IPv6RoutingExtHdrIdentifier IPv6ExtensionHeaderIdentifier = 43 - - // IPv6FragmentExtHdrIdentifier is the header identifier of a Fragment - // extension header, as per RFC 8200 section 4.5. - IPv6FragmentExtHdrIdentifier IPv6ExtensionHeaderIdentifier = 44 - - // IPv6DestinationOptionsExtHdrIdentifier is the header identifier of a - // Destination Options extension header, as per RFC 8200 section 4.6. - IPv6DestinationOptionsExtHdrIdentifier IPv6ExtensionHeaderIdentifier = 60 - - // IPv6NoNextHeaderIdentifier is the header identifier used to signify the end - // of an IPv6 payload, as per RFC 8200 section 4.7. - IPv6NoNextHeaderIdentifier IPv6ExtensionHeaderIdentifier = 59 - - // IPv6UnknownExtHdrIdentifier is reserved by IANA. - // https://www.iana.org/assignments/ipv6-parameters/ipv6-parameters.xhtml#extension-header - // "254 Use for experimentation and testing [RFC3692][RFC4727]" - IPv6UnknownExtHdrIdentifier IPv6ExtensionHeaderIdentifier = 254 -) - -const ( - // ipv6UnknownExtHdrOptionActionMask is the mask of the action to take when - // a node encounters an unrecognized option. - ipv6UnknownExtHdrOptionActionMask = 192 - - // ipv6UnknownExtHdrOptionActionShift is the least significant bits to discard - // from the action value for an unrecognized option identifier. - ipv6UnknownExtHdrOptionActionShift = 6 - - // ipv6RoutingExtHdrSegmentsLeftIdx is the index to the Segments Left field - // within an IPv6RoutingExtHdr. - ipv6RoutingExtHdrSegmentsLeftIdx = 1 - - // IPv6FragmentExtHdrLength is the length of an IPv6 extension header, in - // bytes. - IPv6FragmentExtHdrLength = 8 - - // ipv6FragmentExtHdrFragmentOffsetOffset is the offset to the start of the - // Fragment Offset field within an IPv6FragmentExtHdr. - ipv6FragmentExtHdrFragmentOffsetOffset = 0 - - // ipv6FragmentExtHdrFragmentOffsetShift is the bit offset of the Fragment - // Offset field within an IPv6FragmentExtHdr. - ipv6FragmentExtHdrFragmentOffsetShift = 3 - - // ipv6FragmentExtHdrFlagsIdx is the index to the flags field within an - // IPv6FragmentExtHdr. - ipv6FragmentExtHdrFlagsIdx = 1 - - // ipv6FragmentExtHdrMFlagMask is the mask of the More (M) flag within the - // flags field of an IPv6FragmentExtHdr. - ipv6FragmentExtHdrMFlagMask = 1 - - // ipv6FragmentExtHdrIdentificationOffset is the offset to the Identification - // field within an IPv6FragmentExtHdr. - ipv6FragmentExtHdrIdentificationOffset = 2 - - // ipv6ExtHdrLenBytesPerUnit is the unit size of an extension header's length - // field. That is, given a Length field of 2, the extension header expects - // 16 bytes following the first 8 bytes (see ipv6ExtHdrLenBytesExcluded for - // details about the first 8 bytes' exclusion from the Length field). - ipv6ExtHdrLenBytesPerUnit = 8 - - // ipv6ExtHdrLenBytesExcluded is the number of bytes excluded from an - // extension header's Length field following the Length field. - // - // The Length field excludes the first 8 bytes, but the Next Header and Length - // field take up the first 2 of the 8 bytes so we expect (at minimum) 6 bytes - // after the Length field. - // - // This ensures that every extension header is at least 8 bytes. - ipv6ExtHdrLenBytesExcluded = 6 - - // IPv6FragmentExtHdrFragmentOffsetBytesPerUnit is the unit size of a Fragment - // extension header's Fragment Offset field. That is, given a Fragment Offset - // of 2, the extension header is indicating that the fragment's payload - // starts at the 16th byte in the reassembled packet. - IPv6FragmentExtHdrFragmentOffsetBytesPerUnit = 8 -) - -// padIPv6OptionsLength returns the total length for IPv6 options of length l -// considering the 8-octet alignment as stated in RFC 8200 Section 4.2. -func padIPv6OptionsLength(length int) int { - return (length + ipv6ExtHdrLenBytesPerUnit - 1) & ^(ipv6ExtHdrLenBytesPerUnit - 1) -} - -// padIPv6Option fills b with the appropriate padding options depending on its -// length. -func padIPv6Option(b []byte) { - switch len(b) { - case 0: // No padding needed. - case 1: // Pad with Pad1. - b[ipv6ExtHdrOptionTypeOffset] = uint8(ipv6Pad1ExtHdrOptionIdentifier) - default: // Pad with PadN. - s := b[ipv6ExtHdrOptionPayloadOffset:] - clear(s) - b[ipv6ExtHdrOptionTypeOffset] = uint8(ipv6PadNExtHdrOptionIdentifier) - b[ipv6ExtHdrOptionLengthOffset] = uint8(len(s)) - } -} - -// ipv6OptionsAlignmentPadding returns the number of padding bytes needed to -// serialize an option at headerOffset with alignment requirements -// [align]n + alignOffset. -func ipv6OptionsAlignmentPadding(headerOffset int, align int, alignOffset int) int { - padLen := headerOffset - alignOffset - return ((padLen + align - 1) & ^(align - 1)) - padLen -} - -// IPv6PayloadHeader is implemented by the various headers that can be found -// in an IPv6 payload. -// -// These headers include IPv6 extension headers or upper layer data. -type IPv6PayloadHeader interface { - isIPv6PayloadHeader() - - // Release frees all resources held by the header. - Release() -} - -// IPv6RawPayloadHeader the remainder of an IPv6 payload after an iterator -// encounters a Next Header field it does not recognize as an IPv6 extension -// header. The caller is responsible for releasing the underlying buffer after -// it's no longer needed. -type IPv6RawPayloadHeader struct { - Identifier IPv6ExtensionHeaderIdentifier - Buf buffer.Buffer -} - -// isIPv6PayloadHeader implements IPv6PayloadHeader.isIPv6PayloadHeader. -func (IPv6RawPayloadHeader) isIPv6PayloadHeader() {} - -// Release implements IPv6PayloadHeader.Release. -func (i IPv6RawPayloadHeader) Release() { - i.Buf.Release() -} - -// ipv6OptionsExtHdr is an IPv6 extension header that holds options. -type ipv6OptionsExtHdr struct { - buf *buffer.View -} - -// Release implements IPv6PayloadHeader.Release. -func (i ipv6OptionsExtHdr) Release() { - if i.buf != nil { - i.buf.Release() - } -} - -// Iter returns an iterator over the IPv6 extension header options held in b. -func (i ipv6OptionsExtHdr) Iter() IPv6OptionsExtHdrOptionsIterator { - it := IPv6OptionsExtHdrOptionsIterator{} - it.reader = i.buf - return it -} - -// IPv6OptionsExtHdrOptionsIterator is an iterator over IPv6 extension header -// options. -// -// Note, between when an IPv6OptionsExtHdrOptionsIterator is obtained and last -// used, no changes to the underlying buffer may happen. Doing so may cause -// undefined and unexpected behaviour. It is fine to obtain an -// IPv6OptionsExtHdrOptionsIterator, iterate over the first few options then -// modify the backing payload so long as the IPv6OptionsExtHdrOptionsIterator -// obtained before modification is no longer used. -type IPv6OptionsExtHdrOptionsIterator struct { - reader *buffer.View - - // optionOffset is the number of bytes from the first byte of the - // options field to the beginning of the current option. - optionOffset uint32 - - // nextOptionOffset is the offset of the next option. - nextOptionOffset uint32 -} - -// OptionOffset returns the number of bytes parsed while processing the -// option field of the current Extension Header. -func (i *IPv6OptionsExtHdrOptionsIterator) OptionOffset() uint32 { - return i.optionOffset -} - -// IPv6OptionUnknownAction is the action that must be taken if the processing -// IPv6 node does not recognize the option, as outlined in RFC 8200 section 4.2. -type IPv6OptionUnknownAction int - -const ( - // IPv6OptionUnknownActionSkip indicates that the unrecognized option must - // be skipped and the node should continue processing the header. - IPv6OptionUnknownActionSkip IPv6OptionUnknownAction = 0 - - // IPv6OptionUnknownActionDiscard indicates that the packet must be silently - // discarded. - IPv6OptionUnknownActionDiscard IPv6OptionUnknownAction = 1 - - // IPv6OptionUnknownActionDiscardSendICMP indicates that the packet must be - // discarded and the node must send an ICMP Parameter Problem, Code 2, message - // to the packet's source, regardless of whether or not the packet's - // Destination was a multicast address. - IPv6OptionUnknownActionDiscardSendICMP IPv6OptionUnknownAction = 2 - - // IPv6OptionUnknownActionDiscardSendICMPNoMulticastDest indicates that the - // packet must be discarded and the node must send an ICMP Parameter Problem, - // Code 2, message to the packet's source only if the packet's Destination was - // not a multicast address. - IPv6OptionUnknownActionDiscardSendICMPNoMulticastDest IPv6OptionUnknownAction = 3 -) - -// IPv6ExtHdrOption is implemented by the various IPv6 extension header options. -type IPv6ExtHdrOption interface { - // UnknownAction returns the action to take in response to an unrecognized - // option. - UnknownAction() IPv6OptionUnknownAction - - // isIPv6ExtHdrOption is used to "lock" this interface so it is not - // implemented by other packages. - isIPv6ExtHdrOption() -} - -// IPv6ExtHdrOptionIdentifier is an IPv6 extension header option identifier. -type IPv6ExtHdrOptionIdentifier uint8 - -const ( - // ipv6Pad1ExtHdrOptionIdentifier is the identifier for a padding option that - // provides 1 byte padding, as outlined in RFC 8200 section 4.2. - ipv6Pad1ExtHdrOptionIdentifier IPv6ExtHdrOptionIdentifier = 0 - - // ipv6PadNExtHdrOptionIdentifier is the identifier for a padding option that - // provides variable length byte padding, as outlined in RFC 8200 section 4.2. - ipv6PadNExtHdrOptionIdentifier IPv6ExtHdrOptionIdentifier = 1 - - // ipv6RouterAlertHopByHopOptionIdentifier is the identifier for the Router - // Alert Hop by Hop option as defined in RFC 2711 section 2.1. - ipv6RouterAlertHopByHopOptionIdentifier IPv6ExtHdrOptionIdentifier = 5 - - // ipv6ExtHdrOptionTypeOffset is the option type offset in an extension header - // option as defined in RFC 8200 section 4.2. - ipv6ExtHdrOptionTypeOffset = 0 - - // ipv6ExtHdrOptionLengthOffset is the option length offset in an extension - // header option as defined in RFC 8200 section 4.2. - ipv6ExtHdrOptionLengthOffset = 1 - - // ipv6ExtHdrOptionPayloadOffset is the option payload offset in an extension - // header option as defined in RFC 8200 section 4.2. - ipv6ExtHdrOptionPayloadOffset = 2 -) - -// ipv6UnknownActionFromIdentifier maps an extension header option's -// identifier's high bits to the action to take when the identifier is unknown. -func ipv6UnknownActionFromIdentifier(id IPv6ExtHdrOptionIdentifier) IPv6OptionUnknownAction { - return IPv6OptionUnknownAction((id & ipv6UnknownExtHdrOptionActionMask) >> ipv6UnknownExtHdrOptionActionShift) -} - -// ErrMalformedIPv6ExtHdrOption indicates that an IPv6 extension header option -// is malformed. -var ErrMalformedIPv6ExtHdrOption = errors.New("malformed IPv6 extension header option") - -// IPv6UnknownExtHdrOption holds the identifier and data for an IPv6 extension -// header option that is unknown by the parsing utilities. -type IPv6UnknownExtHdrOption struct { - Identifier IPv6ExtHdrOptionIdentifier - Data *buffer.View -} - -// UnknownAction implements IPv6OptionUnknownAction.UnknownAction. -func (o *IPv6UnknownExtHdrOption) UnknownAction() IPv6OptionUnknownAction { - return ipv6UnknownActionFromIdentifier(o.Identifier) -} - -// isIPv6ExtHdrOption implements IPv6ExtHdrOption.isIPv6ExtHdrOption. -func (*IPv6UnknownExtHdrOption) isIPv6ExtHdrOption() {} - -// Next returns the next option in the options data. -// -// If the next item is not a known extension header option, -// IPv6UnknownExtHdrOption will be returned with the option identifier and data. -// -// The return is of the format (option, done, error). done will be true when -// Next is unable to return anything because the iterator has reached the end of -// the options data, or an error occurred. -func (i *IPv6OptionsExtHdrOptionsIterator) Next() (IPv6ExtHdrOption, bool, error) { - for { - i.optionOffset = i.nextOptionOffset - temp, err := i.reader.ReadByte() - if err != nil { - // If we can't read the first byte of a new option, then we know the - // options buffer has been exhausted and we are done iterating. - return nil, true, nil - } - id := IPv6ExtHdrOptionIdentifier(temp) - - // If the option identifier indicates the option is a Pad1 option, then we - // know the option does not have Length and Data fields. End processing of - // the Pad1 option and continue processing the buffer as a new option. - if id == ipv6Pad1ExtHdrOptionIdentifier { - i.nextOptionOffset = i.optionOffset + 1 - continue - } - - length, err := i.reader.ReadByte() - if err != nil { - if err != io.EOF { - // ReadByte should only ever return nil or io.EOF. - panic(fmt.Sprintf("unexpected error when reading the option's Length field for option with id = %d: %s", id, err)) - } - - // We use io.ErrUnexpectedEOF as exhausting the buffer is unexpected once - // we start parsing an option; we expect the reader to contain enough - // bytes for the whole option. - return nil, true, fmt.Errorf("error when reading the option's Length field for option with id = %d: %w", id, io.ErrUnexpectedEOF) - } - - // Do we have enough bytes in the reader for the next option? - if n := i.reader.Size(); n < int(length) { - // Consume the remaining buffer. - i.reader.TrimFront(i.reader.Size()) - - // We return the same error as if we failed to read a non-padding option - // so consumers of this iterator don't need to differentiate between - // padding and non-padding options. - return nil, true, fmt.Errorf("read %d out of %d option data bytes for option with id = %d: %w", n, length, id, io.ErrUnexpectedEOF) - } - - i.nextOptionOffset = i.optionOffset + uint32(length) + 1 /* option ID */ + 1 /* length byte */ - - switch id { - case ipv6PadNExtHdrOptionIdentifier: - // Special-case the variable length padding option to avoid a copy. - i.reader.TrimFront(int(length)) - continue - case ipv6RouterAlertHopByHopOptionIdentifier: - var routerAlertValue [ipv6RouterAlertPayloadLength]byte - if n, err := io.ReadFull(i.reader, routerAlertValue[:]); err != nil { - switch err { - case io.EOF, io.ErrUnexpectedEOF: - return nil, true, fmt.Errorf("got invalid length (%d) for router alert option (want = %d): %w", length, ipv6RouterAlertPayloadLength, ErrMalformedIPv6ExtHdrOption) - default: - return nil, true, fmt.Errorf("read %d out of %d option data bytes for router alert option: %w", n, ipv6RouterAlertPayloadLength, err) - } - } else if n != int(length) { - return nil, true, fmt.Errorf("got invalid length (%d) for router alert option (want = %d): %w", length, ipv6RouterAlertPayloadLength, ErrMalformedIPv6ExtHdrOption) - } - return &IPv6RouterAlertOption{Value: IPv6RouterAlertValue(binary.BigEndian.Uint16(routerAlertValue[:]))}, false, nil - default: - bytes := buffer.NewView(int(length)) - if n, err := io.CopyN(bytes, i.reader, int64(length)); err != nil { - if err == io.EOF { - err = io.ErrUnexpectedEOF - } - - return nil, true, fmt.Errorf("read %d out of %d option data bytes for option with id = %d: %w", n, length, id, err) - } - return &IPv6UnknownExtHdrOption{Identifier: id, Data: bytes}, false, nil - } - } -} - -// IPv6HopByHopOptionsExtHdr is a buffer holding the Hop By Hop Options -// extension header. -type IPv6HopByHopOptionsExtHdr struct { - ipv6OptionsExtHdr -} - -// isIPv6PayloadHeader implements IPv6PayloadHeader.isIPv6PayloadHeader. -func (IPv6HopByHopOptionsExtHdr) isIPv6PayloadHeader() {} - -// IPv6DestinationOptionsExtHdr is a buffer holding the Destination Options -// extension header. -type IPv6DestinationOptionsExtHdr struct { - ipv6OptionsExtHdr -} - -// isIPv6PayloadHeader implements IPv6PayloadHeader.isIPv6PayloadHeader. -func (IPv6DestinationOptionsExtHdr) isIPv6PayloadHeader() {} - -// IPv6RoutingExtHdr is a buffer holding the Routing extension header specific -// data as outlined in RFC 8200 section 4.4. -type IPv6RoutingExtHdr struct { - Buf *buffer.View -} - -// isIPv6PayloadHeader implements IPv6PayloadHeader.isIPv6PayloadHeader. -func (IPv6RoutingExtHdr) isIPv6PayloadHeader() {} - -// Release implements IPv6PayloadHeader.Release. -func (b IPv6RoutingExtHdr) Release() { - b.Buf.Release() -} - -// SegmentsLeft returns the Segments Left field. -func (b IPv6RoutingExtHdr) SegmentsLeft() uint8 { - return b.Buf.AsSlice()[ipv6RoutingExtHdrSegmentsLeftIdx] -} - -// IPv6FragmentExtHdr is a buffer holding the Fragment extension header specific -// data as outlined in RFC 8200 section 4.5. -// -// Note, the buffer does not include the Next Header and Reserved fields. -type IPv6FragmentExtHdr [6]byte - -// isIPv6PayloadHeader implements IPv6PayloadHeader.isIPv6PayloadHeader. -func (IPv6FragmentExtHdr) isIPv6PayloadHeader() {} - -// Release implements IPv6PayloadHeader.Release. -func (IPv6FragmentExtHdr) Release() {} - -// FragmentOffset returns the Fragment Offset field. -// -// This value indicates where the buffer following the Fragment extension header -// starts in the target (reassembled) packet. -func (b IPv6FragmentExtHdr) FragmentOffset() uint16 { - return binary.BigEndian.Uint16(b[ipv6FragmentExtHdrFragmentOffsetOffset:]) >> ipv6FragmentExtHdrFragmentOffsetShift -} - -// More returns the More (M) flag. -// -// This indicates whether any fragments are expected to succeed b. -func (b IPv6FragmentExtHdr) More() bool { - return b[ipv6FragmentExtHdrFlagsIdx]&ipv6FragmentExtHdrMFlagMask != 0 -} - -// ID returns the Identification field. -// -// This value is used to uniquely identify the packet, between a -// source and destination. -func (b IPv6FragmentExtHdr) ID() uint32 { - return binary.BigEndian.Uint32(b[ipv6FragmentExtHdrIdentificationOffset:]) -} - -// IsAtomic returns whether the fragment header indicates an atomic fragment. An -// atomic fragment is a fragment that contains all the data required to -// reassemble a full packet. -func (b IPv6FragmentExtHdr) IsAtomic() bool { - return !b.More() && b.FragmentOffset() == 0 -} - -// IPv6PayloadIterator is an iterator over the contents of an IPv6 payload. -// -// The IPv6 payload may contain IPv6 extension headers before any upper layer -// data. -// -// Note, between when an IPv6PayloadIterator is obtained and last used, no -// changes to the payload may happen. Doing so may cause undefined and -// unexpected behaviour. It is fine to obtain an IPv6PayloadIterator, iterate -// over the first few headers then modify the backing payload so long as the -// IPv6PayloadIterator obtained before modification is no longer used. -type IPv6PayloadIterator struct { - // The identifier of the next header to parse. - nextHdrIdentifier IPv6ExtensionHeaderIdentifier - - payload buffer.Buffer - - // Indicates to the iterator that it should return the remaining payload as a - // raw payload on the next call to Next. - forceRaw bool - - // headerOffset is the offset of the beginning of the current extension - // header starting from the beginning of the fixed header. - headerOffset uint32 - - // parseOffset is the byte offset into the current extension header of the - // field we are currently examining. It can be added to the header offset - // if the absolute offset within the packet is required. - parseOffset uint32 - - // nextOffset is the offset of the next header. - nextOffset uint32 -} - -// HeaderOffset returns the offset to the start of the extension -// header most recently processed. -func (i IPv6PayloadIterator) HeaderOffset() uint32 { - return i.headerOffset -} - -// ParseOffset returns the number of bytes successfully parsed. -func (i IPv6PayloadIterator) ParseOffset() uint32 { - return i.headerOffset + i.parseOffset -} - -// MakeIPv6PayloadIterator returns an iterator over the IPv6 payload containing -// extension headers, or a raw payload if the payload cannot be parsed. The -// iterator takes ownership of the payload. -func MakeIPv6PayloadIterator(nextHdrIdentifier IPv6ExtensionHeaderIdentifier, payload buffer.Buffer) IPv6PayloadIterator { - return IPv6PayloadIterator{ - nextHdrIdentifier: nextHdrIdentifier, - payload: payload, - nextOffset: IPv6FixedHeaderSize, - } -} - -// Release frees the resources owned by the iterator. -func (i *IPv6PayloadIterator) Release() { - i.payload.Release() -} - -// AsRawHeader returns the remaining payload of i as a raw header and -// optionally consumes the iterator. -// -// If consume is true, calls to Next after calling AsRawHeader on i will -// indicate that the iterator is done. The returned header takes ownership of -// its payload. -func (i *IPv6PayloadIterator) AsRawHeader(consume bool) IPv6RawPayloadHeader { - identifier := i.nextHdrIdentifier - - var buf buffer.Buffer - if consume { - // Since we consume the iterator, we return the payload as is. - buf = i.payload - - // Mark i as done, but keep track of where we were for error reporting. - *i = IPv6PayloadIterator{ - nextHdrIdentifier: IPv6NoNextHeaderIdentifier, - headerOffset: i.headerOffset, - nextOffset: i.nextOffset, - } - } else { - buf = i.payload.Clone() - } - - return IPv6RawPayloadHeader{Identifier: identifier, Buf: buf} -} - -// Next returns the next item in the payload. -// -// If the next item is not a known IPv6 extension header, IPv6RawPayloadHeader -// will be returned with the remaining bytes and next header identifier. -// -// The return is of the format (header, done, error). done will be true when -// Next is unable to return anything because the iterator has reached the end of -// the payload, or an error occurred. -func (i *IPv6PayloadIterator) Next() (IPv6PayloadHeader, bool, error) { - i.headerOffset = i.nextOffset - i.parseOffset = 0 - // We could be forced to return i as a raw header when the previous header was - // a fragment extension header as the data following the fragment extension - // header may not be complete. - if i.forceRaw { - return i.AsRawHeader(true /* consume */), false, nil - } - - // Is the header we are parsing a known extension header? - switch i.nextHdrIdentifier { - case IPv6HopByHopOptionsExtHdrIdentifier: - nextHdrIdentifier, view, err := i.nextHeaderData(false /* fragmentHdr */, nil) - if err != nil { - return nil, true, err - } - - i.nextHdrIdentifier = nextHdrIdentifier - return IPv6HopByHopOptionsExtHdr{ipv6OptionsExtHdr{view}}, false, nil - case IPv6RoutingExtHdrIdentifier: - nextHdrIdentifier, view, err := i.nextHeaderData(false /* fragmentHdr */, nil) - if err != nil { - return nil, true, err - } - - i.nextHdrIdentifier = nextHdrIdentifier - return IPv6RoutingExtHdr{view}, false, nil - case IPv6FragmentExtHdrIdentifier: - var data [6]byte - // We ignore the returned bytes because we know the fragment extension - // header specific data will fit in data. - nextHdrIdentifier, _, err := i.nextHeaderData(true /* fragmentHdr */, data[:]) - if err != nil { - return nil, true, err - } - - fragmentExtHdr := IPv6FragmentExtHdr(data) - - // If the packet is not the first fragment, do not attempt to parse anything - // after the fragment extension header as the payload following the fragment - // extension header should not contain any headers; the first fragment must - // hold all the headers up to and including any upper layer headers, as per - // RFC 8200 section 4.5. - if fragmentExtHdr.FragmentOffset() != 0 { - i.forceRaw = true - } - - i.nextHdrIdentifier = nextHdrIdentifier - return fragmentExtHdr, false, nil - case IPv6DestinationOptionsExtHdrIdentifier: - nextHdrIdentifier, view, err := i.nextHeaderData(false /* fragmentHdr */, nil) - if err != nil { - return nil, true, err - } - - i.nextHdrIdentifier = nextHdrIdentifier - return IPv6DestinationOptionsExtHdr{ipv6OptionsExtHdr{view}}, false, nil - case IPv6NoNextHeaderIdentifier: - // This indicates the end of the IPv6 payload. - return nil, true, nil - - default: - // The header we are parsing is not a known extension header. Return the - // raw payload. - return i.AsRawHeader(true /* consume */), false, nil - } -} - -// NextHeaderIdentifier returns the identifier of the header next returned by -// it.Next(). -func (i *IPv6PayloadIterator) NextHeaderIdentifier() IPv6ExtensionHeaderIdentifier { - return i.nextHdrIdentifier -} - -// nextHeaderData returns the extension header's Next Header field and raw data. -// -// fragmentHdr indicates that the extension header being parsed is the Fragment -// extension header so the Length field should be ignored as it is Reserved -// for the Fragment extension header. -// -// If bytes is not nil, extension header specific data will be read into bytes -// if it has enough capacity. If bytes is provided but does not have enough -// capacity for the data, nextHeaderData will panic. -func (i *IPv6PayloadIterator) nextHeaderData(fragmentHdr bool, bytes []byte) (IPv6ExtensionHeaderIdentifier, *buffer.View, error) { - // We ignore the number of bytes read because we know we will only ever read - // at max 1 bytes since rune has a length of 1. If we read 0 bytes, the Read - // would return io.EOF to indicate that io.Reader has reached the end of the - // payload. - rdr := i.payload.AsBufferReader() - nextHdrIdentifier, err := rdr.ReadByte() - if err != nil { - return 0, nil, fmt.Errorf("error when reading the Next Header field for extension header with id = %d: %w", i.nextHdrIdentifier, err) - } - i.parseOffset++ - - var length uint8 - length, err = rdr.ReadByte() - - if err != nil { - if fragmentHdr { - return 0, nil, fmt.Errorf("error when reading the Length field for extension header with id = %d: %w", i.nextHdrIdentifier, err) - } - - return 0, nil, fmt.Errorf("error when reading the Reserved field for extension header with id = %d: %w", i.nextHdrIdentifier, err) - } - if fragmentHdr { - length = 0 - } - - // Make parseOffset point to the first byte of the Extension Header - // specific data. - i.parseOffset++ - - // length is in 8 byte chunks but doesn't include the first one. - // See RFC 8200 for each header type, sections 4.3-4.6 and the requirement - // in section 4.8 for new extension headers at the top of page 24. - // [ Hdr Ext Len ] ... Length of the Destination Options header in 8-octet - // units, not including the first 8 octets. - i.nextOffset += uint32((length + 1) * ipv6ExtHdrLenBytesPerUnit) - - bytesLen := int(length)*ipv6ExtHdrLenBytesPerUnit + ipv6ExtHdrLenBytesExcluded - if fragmentHdr { - if n := len(bytes); n < bytesLen { - panic(fmt.Sprintf("bytes only has space for %d bytes but need space for %d bytes (length = %d) for extension header with id = %d", n, bytesLen, length, i.nextHdrIdentifier)) - } - if n, err := io.ReadFull(&rdr, bytes); err != nil { - return 0, nil, fmt.Errorf("read %d out of %d extension header data bytes (length = %d) for header with id = %d: %w", n, bytesLen, length, i.nextHdrIdentifier, err) - } - return IPv6ExtensionHeaderIdentifier(nextHdrIdentifier), nil, nil - } - v := buffer.NewView(bytesLen) - if n, err := io.CopyN(v, &rdr, int64(bytesLen)); err != nil { - if err == io.EOF { - err = io.ErrUnexpectedEOF - } - v.Release() - return 0, nil, fmt.Errorf("read %d out of %d extension header data bytes (length = %d) for header with id = %d: %w", n, bytesLen, length, i.nextHdrIdentifier, err) - } - return IPv6ExtensionHeaderIdentifier(nextHdrIdentifier), v, nil -} - -// IPv6SerializableExtHdr provides serialization for IPv6 extension -// headers. -type IPv6SerializableExtHdr interface { - // identifier returns the assigned IPv6 header identifier for this extension - // header. - identifier() IPv6ExtensionHeaderIdentifier - - // length returns the total serialized length in bytes of this extension - // header, including the common next header and length fields. - length() int - - // serializeInto serializes the receiver into the provided byte - // buffer and with the provided nextHeader value. - // - // Note, the caller MUST provide a byte buffer with size of at least - // length. Implementers of this function may assume that the byte buffer - // is of sufficient size. serializeInto MAY panic if the provided byte - // buffer is not of sufficient size. - // - // serializeInto returns the number of bytes that was used to serialize the - // receiver. Implementers must only use the number of bytes required to - // serialize the receiver. Callers MAY provide a larger buffer than required - // to serialize into. - serializeInto(nextHeader uint8, b []byte) int -} - -var _ IPv6SerializableExtHdr = (*IPv6SerializableHopByHopExtHdr)(nil) - -// IPv6SerializableHopByHopExtHdr implements serialization of the Hop by Hop -// options extension header. -type IPv6SerializableHopByHopExtHdr []IPv6SerializableHopByHopOption - -const ( - // ipv6HopByHopExtHdrNextHeaderOffset is the offset of the next header field - // in a hop by hop extension header as defined in RFC 8200 section 4.3. - ipv6HopByHopExtHdrNextHeaderOffset = 0 - - // ipv6HopByHopExtHdrLengthOffset is the offset of the length field in a hop - // by hop extension header as defined in RFC 8200 section 4.3. - ipv6HopByHopExtHdrLengthOffset = 1 - - // ipv6HopByHopExtHdrPayloadOffset is the offset of the options in a hop by - // hop extension header as defined in RFC 8200 section 4.3. - ipv6HopByHopExtHdrOptionsOffset = 2 - - // ipv6HopByHopExtHdrUnaccountedLenWords is the implicit number of 8-octet - // words in a hop by hop extension header's length field, as stated in RFC - // 8200 section 4.3: - // Length of the Hop-by-Hop Options header in 8-octet units, - // not including the first 8 octets. - ipv6HopByHopExtHdrUnaccountedLenWords = 1 -) - -// identifier implements IPv6SerializableExtHdr. -func (IPv6SerializableHopByHopExtHdr) identifier() IPv6ExtensionHeaderIdentifier { - return IPv6HopByHopOptionsExtHdrIdentifier -} - -// length implements IPv6SerializableExtHdr. -func (h IPv6SerializableHopByHopExtHdr) length() int { - var total int - for _, opt := range h { - align, alignOffset := opt.alignment() - total += ipv6OptionsAlignmentPadding(total, align, alignOffset) - total += ipv6ExtHdrOptionPayloadOffset + int(opt.length()) - } - // Account for next header and total length fields and add padding. - return padIPv6OptionsLength(ipv6HopByHopExtHdrOptionsOffset + total) -} - -// serializeInto implements IPv6SerializableExtHdr. -func (h IPv6SerializableHopByHopExtHdr) serializeInto(nextHeader uint8, b []byte) int { - optBuffer := b[ipv6HopByHopExtHdrOptionsOffset:] - totalLength := ipv6HopByHopExtHdrOptionsOffset - for _, opt := range h { - // Calculate alignment requirements and pad buffer if necessary. - align, alignOffset := opt.alignment() - padLen := ipv6OptionsAlignmentPadding(totalLength, align, alignOffset) - if padLen != 0 { - padIPv6Option(optBuffer[:padLen]) - totalLength += padLen - optBuffer = optBuffer[padLen:] - } - - l := opt.serializeInto(optBuffer[ipv6ExtHdrOptionPayloadOffset:]) - optBuffer[ipv6ExtHdrOptionTypeOffset] = uint8(opt.identifier()) - optBuffer[ipv6ExtHdrOptionLengthOffset] = l - l += ipv6ExtHdrOptionPayloadOffset - totalLength += int(l) - optBuffer = optBuffer[l:] - } - padded := padIPv6OptionsLength(totalLength) - if padded != totalLength { - padIPv6Option(optBuffer[:padded-totalLength]) - totalLength = padded - } - wordsLen := totalLength/ipv6ExtHdrLenBytesPerUnit - ipv6HopByHopExtHdrUnaccountedLenWords - if wordsLen > math.MaxUint8 { - panic(fmt.Sprintf("IPv6 hop by hop options too large: %d+1 64-bit words", wordsLen)) - } - b[ipv6HopByHopExtHdrNextHeaderOffset] = nextHeader - b[ipv6HopByHopExtHdrLengthOffset] = uint8(wordsLen) - return totalLength -} - -// IPv6SerializableHopByHopOption provides serialization for hop by hop options. -type IPv6SerializableHopByHopOption interface { - // identifier returns the option identifier of this Hop by Hop option. - identifier() IPv6ExtHdrOptionIdentifier - - // length returns the *payload* size of the option (not considering the type - // and length fields). - length() uint8 - - // alignment returns the alignment requirements from this option. - // - // Alignment requirements take the form [align]n + offset as specified in - // RFC 8200 section 4.2. The alignment requirement is on the offset between - // the option type byte and the start of the hop by hop header. - // - // align must be a power of 2. - alignment() (align int, offset int) - - // serializeInto serializes the receiver into the provided byte - // buffer. - // - // Note, the caller MUST provide a byte buffer with size of at least - // length. Implementers of this function may assume that the byte buffer - // is of sufficient size. serializeInto MAY panic if the provided byte - // buffer is not of sufficient size. - // - // serializeInto will return the number of bytes that was used to - // serialize the receiver. Implementers must only use the number of - // bytes required to serialize the receiver. Callers MAY provide a - // larger buffer than required to serialize into. - serializeInto([]byte) uint8 -} - -var _ IPv6SerializableHopByHopOption = (*IPv6RouterAlertOption)(nil) - -// IPv6RouterAlertOption is the IPv6 Router alert Hop by Hop option defined in -// RFC 2711 section 2.1. -type IPv6RouterAlertOption struct { - Value IPv6RouterAlertValue -} - -// IPv6RouterAlertValue is the payload of an IPv6 Router Alert option. -type IPv6RouterAlertValue uint16 - -const ( - // IPv6RouterAlertMLD indicates a datagram containing a Multicast Listener - // Discovery message as defined in RFC 2711 section 2.1. - IPv6RouterAlertMLD IPv6RouterAlertValue = 0 - // IPv6RouterAlertRSVP indicates a datagram containing an RSVP message as - // defined in RFC 2711 section 2.1. - IPv6RouterAlertRSVP IPv6RouterAlertValue = 1 - // IPv6RouterAlertActiveNetworks indicates a datagram containing an Active - // Networks message as defined in RFC 2711 section 2.1. - IPv6RouterAlertActiveNetworks IPv6RouterAlertValue = 2 - - // ipv6RouterAlertPayloadLength is the length of the Router Alert payload - // as defined in RFC 2711. - ipv6RouterAlertPayloadLength = 2 - - // ipv6RouterAlertAlignmentRequirement is the alignment requirement for the - // Router Alert option defined as 2n+0 in RFC 2711. - ipv6RouterAlertAlignmentRequirement = 2 - - // ipv6RouterAlertAlignmentOffsetRequirement is the alignment offset - // requirement for the Router Alert option defined as 2n+0 in RFC 2711 section - // 2.1. - ipv6RouterAlertAlignmentOffsetRequirement = 0 -) - -// UnknownAction implements IPv6ExtHdrOption. -func (*IPv6RouterAlertOption) UnknownAction() IPv6OptionUnknownAction { - return ipv6UnknownActionFromIdentifier(ipv6RouterAlertHopByHopOptionIdentifier) -} - -// isIPv6ExtHdrOption implements IPv6ExtHdrOption. -func (*IPv6RouterAlertOption) isIPv6ExtHdrOption() {} - -// identifier implements IPv6SerializableHopByHopOption. -func (*IPv6RouterAlertOption) identifier() IPv6ExtHdrOptionIdentifier { - return ipv6RouterAlertHopByHopOptionIdentifier -} - -// length implements IPv6SerializableHopByHopOption. -func (*IPv6RouterAlertOption) length() uint8 { - return ipv6RouterAlertPayloadLength -} - -// alignment implements IPv6SerializableHopByHopOption. -func (*IPv6RouterAlertOption) alignment() (int, int) { - // From RFC 2711 section 2.1: - // Alignment requirement: 2n+0. - return ipv6RouterAlertAlignmentRequirement, ipv6RouterAlertAlignmentOffsetRequirement -} - -// serializeInto implements IPv6SerializableHopByHopOption. -func (o *IPv6RouterAlertOption) serializeInto(b []byte) uint8 { - binary.BigEndian.PutUint16(b, uint16(o.Value)) - return ipv6RouterAlertPayloadLength -} - -// IPv6ExtHdrSerializer provides serialization of IPv6 extension headers. -type IPv6ExtHdrSerializer []IPv6SerializableExtHdr - -// Serialize serializes the provided list of IPv6 extension headers into b. -// -// Note, b must be of sufficient size to hold all the headers in s. See -// IPv6ExtHdrSerializer.Length for details on the getting the total size of a -// serialized IPv6ExtHdrSerializer. -// -// Serialize may panic if b is not of sufficient size to hold all the options -// in s. -// -// Serialize takes the transportProtocol value to be used as the last extension -// header's Next Header value and returns the header identifier of the first -// serialized extension header and the total serialized length. -func (s IPv6ExtHdrSerializer) Serialize(transportProtocol tcpip.TransportProtocolNumber, b []byte) (uint8, int) { - nextHeader := uint8(transportProtocol) - if len(s) == 0 { - return nextHeader, 0 - } - var totalLength int - for i, h := range s[:len(s)-1] { - length := h.serializeInto(uint8(s[i+1].identifier()), b) - b = b[length:] - totalLength += length - } - totalLength += s[len(s)-1].serializeInto(nextHeader, b) - return uint8(s[0].identifier()), totalLength -} - -// Length returns the total number of bytes required to serialize the extension -// headers. -func (s IPv6ExtHdrSerializer) Length() int { - var totalLength int - for _, h := range s { - totalLength += h.length() - } - return totalLength -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ipv6_fragment.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ipv6_fragment.go deleted file mode 100644 index 9d09f32eb1..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ipv6_fragment.go +++ /dev/null @@ -1,158 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "encoding/binary" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -const ( - nextHdrFrag = 0 - fragOff = 2 - more = 3 - idV6 = 4 -) - -var _ IPv6SerializableExtHdr = (*IPv6SerializableFragmentExtHdr)(nil) - -// IPv6SerializableFragmentExtHdr is used to serialize an IPv6 fragment -// extension header as defined in RFC 8200 section 4.5. -type IPv6SerializableFragmentExtHdr struct { - // FragmentOffset is the "fragment offset" field of an IPv6 fragment. - FragmentOffset uint16 - - // M is the "more" field of an IPv6 fragment. - M bool - - // Identification is the "identification" field of an IPv6 fragment. - Identification uint32 -} - -// identifier implements IPv6SerializableFragmentExtHdr. -func (h *IPv6SerializableFragmentExtHdr) identifier() IPv6ExtensionHeaderIdentifier { - return IPv6FragmentHeader -} - -// length implements IPv6SerializableFragmentExtHdr. -func (h *IPv6SerializableFragmentExtHdr) length() int { - return IPv6FragmentHeaderSize -} - -// serializeInto implements IPv6SerializableFragmentExtHdr. -func (h *IPv6SerializableFragmentExtHdr) serializeInto(nextHeader uint8, b []byte) int { - // Prevent too many bounds checks. - _ = b[IPv6FragmentHeaderSize:] - binary.BigEndian.PutUint32(b[idV6:], h.Identification) - binary.BigEndian.PutUint16(b[fragOff:], h.FragmentOffset<= IPv6FragmentHeaderSize -} - -// NextHeader returns the value of the "next header" field of the ipv6 fragment. -func (b IPv6Fragment) NextHeader() uint8 { - return b[nextHdrFrag] -} - -// FragmentOffset returns the "fragment offset" field of the ipv6 fragment. -func (b IPv6Fragment) FragmentOffset() uint16 { - return binary.BigEndian.Uint16(b[fragOff:]) >> 3 -} - -// More returns the "more" field of the ipv6 fragment. -func (b IPv6Fragment) More() bool { - return b[more]&1 > 0 -} - -// Payload implements Network.Payload. -func (b IPv6Fragment) Payload() []byte { - return b[IPv6FragmentHeaderSize:] -} - -// ID returns the value of the identifier field of the ipv6 fragment. -func (b IPv6Fragment) ID() uint32 { - return binary.BigEndian.Uint32(b[idV6:]) -} - -// TransportProtocol implements Network.TransportProtocol. -func (b IPv6Fragment) TransportProtocol() tcpip.TransportProtocolNumber { - return tcpip.TransportProtocolNumber(b.NextHeader()) -} - -// The functions below have been added only to satisfy the Network interface. - -// Checksum is not supported by IPv6Fragment. -func (b IPv6Fragment) Checksum() uint16 { - panic("not supported") -} - -// SourceAddress is not supported by IPv6Fragment. -func (b IPv6Fragment) SourceAddress() tcpip.Address { - panic("not supported") -} - -// DestinationAddress is not supported by IPv6Fragment. -func (b IPv6Fragment) DestinationAddress() tcpip.Address { - panic("not supported") -} - -// SetSourceAddress is not supported by IPv6Fragment. -func (b IPv6Fragment) SetSourceAddress(tcpip.Address) { - panic("not supported") -} - -// SetDestinationAddress is not supported by IPv6Fragment. -func (b IPv6Fragment) SetDestinationAddress(tcpip.Address) { - panic("not supported") -} - -// SetChecksum is not supported by IPv6Fragment. -func (b IPv6Fragment) SetChecksum(uint16) { - panic("not supported") -} - -// TOS is not supported by IPv6Fragment. -func (b IPv6Fragment) TOS() (uint8, uint32) { - panic("not supported") -} - -// SetTOS is not supported by IPv6Fragment. -func (b IPv6Fragment) SetTOS(t uint8, l uint32) { - panic("not supported") -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/mld.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/mld.go deleted file mode 100644 index 861f56cff6..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/mld.go +++ /dev/null @@ -1,103 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "encoding/binary" - "fmt" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -const ( - // MLDMinimumSize is the minimum size for an MLD message. - MLDMinimumSize = 20 - - // MLDHopLimit is the Hop Limit for all IPv6 packets with an MLD message, as - // per RFC 2710 section 3. - MLDHopLimit = 1 - - // mldMaximumResponseDelayOffset is the offset to the Maximum Response Delay - // field within MLD. - mldMaximumResponseDelayOffset = 0 - - // mldMulticastAddressOffset is the offset to the Multicast Address field - // within MLD. - mldMulticastAddressOffset = 4 -) - -// MLD is a Multicast Listener Discovery message in an ICMPv6 packet. -// -// MLD will only contain the body of an ICMPv6 packet. -// -// As per RFC 2710 section 3, MLD messages have the following format (MLD only -// holds the bytes after the first four bytes in the diagram below): -// -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Type | Code | Checksum | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Maximum Response Delay | Reserved | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// + + -// | | -// + Multicast Address + -// | | -// + + -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -type MLD []byte - -// MaximumResponseDelay returns the Maximum Response Delay. -func (m MLD) MaximumResponseDelay() time.Duration { - // As per RFC 2710 section 3.4: - // - // The Maximum Response Delay field is meaningful only in Query - // messages, and specifies the maximum allowed delay before sending a - // responding Report, in units of milliseconds. In all other messages, - // it is set to zero by the sender and ignored by receivers. - return time.Duration(binary.BigEndian.Uint16(m[mldMaximumResponseDelayOffset:])) * time.Millisecond -} - -// SetMaximumResponseDelay sets the Maximum Response Delay field. -// -// maxRespDelayMS is the value in milliseconds. -func (m MLD) SetMaximumResponseDelay(maxRespDelayMS uint16) { - binary.BigEndian.PutUint16(m[mldMaximumResponseDelayOffset:], maxRespDelayMS) -} - -// MulticastAddress returns the Multicast Address. -func (m MLD) MulticastAddress() tcpip.Address { - // As per RFC 2710 section 3.5: - // - // In a Query message, the Multicast Address field is set to zero when - // sending a General Query, and set to a specific IPv6 multicast address - // when sending a Multicast-Address-Specific Query. - // - // In a Report or Done message, the Multicast Address field holds a - // specific IPv6 multicast address to which the message sender is - // listening or is ceasing to listen, respectively. - return tcpip.AddrFrom16([16]byte(m[mldMulticastAddressOffset:][:IPv6AddressSize])) -} - -// SetMulticastAddress sets the Multicast Address field. -func (m MLD) SetMulticastAddress(multicastAddress tcpip.Address) { - if n := copy(m[mldMulticastAddressOffset:], multicastAddress.AsSlice()); n != IPv6AddressSize { - panic(fmt.Sprintf("copied %d bytes, expected to copy %d bytes", n, IPv6AddressSize)) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/mldv2.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/mldv2.go deleted file mode 100644 index 3d1fbd19ce..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/mldv2.go +++ /dev/null @@ -1,541 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "bytes" - "encoding/binary" - "fmt" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -const ( - // MLDv2QueryMinimumSize is the minimum size for an MLDv2 message. - MLDv2QueryMinimumSize = 24 - - mldv2QueryMaximumResponseCodeOffset = 0 - mldv2QueryResvSQRVOffset = 20 - mldv2QueryQRVMask = 0b111 - mldv2QueryQQICOffset = 21 - // mldv2QueryNumberOfSourcesOffset is the offset to the Number of Sources - // field within MLDv2Query. - mldv2QueryNumberOfSourcesOffset = 22 - - // MLDv2ReportMinimumSize is the minimum size of an MLDv2 report. - MLDv2ReportMinimumSize = 24 - - // mldv2QuerySourcesOffset is the offset to the Sources field within - // MLDv2Query. - mldv2QuerySourcesOffset = 24 -) - -var ( - // MLDv2RoutersAddress is the address to send MLDv2 reports to. - // - // As per RFC 3810 section 5.2.14, - // - // Version 2 Multicast Listener Reports are sent with an IP destination - // address of FF02:0:0:0:0:0:0:16, to which all MLDv2-capable multicast - // routers listen (see section 11 for IANA considerations related to - // this special destination address). - MLDv2RoutersAddress = tcpip.AddrFrom16([16]byte{0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16}) -) - -// MLDv2Query is a Multicast Listener Discovery Version 2 Query message in an -// ICMPv6 packet. -// -// MLDv2Query will only contain the body of an ICMPv6 packet. -// -// As per RFC 3810 section 5.1, MLDv2 Query messages have the following format -// (MLDv2Query only holds the bytes after the first four bytes in the diagram -// below): -// -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Type = 130 | Code | Checksum | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Maximum Response Code | Reserved | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// * * -// | | -// * Multicast Address * -// | | -// * * -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Resv |S| QRV | QQIC | Number of Sources (N) | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// * * -// | | -// * Source Address [1] * -// | | -// * * -// | | -// +- -+ -// | | -// * * -// | | -// * Source Address [2] * -// | | -// * * -// | | -// +- . -+ -// . . . -// . . . -// +- -+ -// | | -// * * -// | | -// * Source Address [N] * -// | | -// * * -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -type MLDv2Query MLD - -// MaximumResponseCode returns the Maximum Response Code -func (m MLDv2Query) MaximumResponseCode() uint16 { - return binary.BigEndian.Uint16(m[mldv2QueryMaximumResponseCodeOffset:]) -} - -// MLDv2MaximumResponseDelay returns the Maximum Response Delay in an MLDv2 -// Maximum Response Code. -// -// As per RFC 3810 section 5.1.3, -// -// The Maximum Response Code field specifies the maximum time allowed -// before sending a responding Report. The actual time allowed, called -// the Maximum Response Delay, is represented in units of milliseconds, -// and is derived from the Maximum Response Code as follows: -// -// If Maximum Response Code < 32768, -// Maximum Response Delay = Maximum Response Code -// -// If Maximum Response Code >=32768, Maximum Response Code represents a -// floating-point value as follows: -// -// 0 1 2 3 4 5 6 7 8 9 A B C D E F -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// |1| exp | mant | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// -// Maximum Response Delay = (mant | 0x1000) << (exp+3) -// -// Small values of Maximum Response Delay allow MLDv2 routers to tune -// the "leave latency" (the time between the moment the last node on a -// link ceases to listen to a specific multicast address and the moment -// the routing protocol is notified that there are no more listeners for -// that address). Larger values, especially in the exponential range, -// allow the tuning of the burstiness of MLD traffic on a link. -func MLDv2MaximumResponseDelay(codeRaw uint16) time.Duration { - code := time.Duration(codeRaw) - if code < 32768 { - return code * time.Millisecond - } - - const mantBits = 12 - const expMask = 0b111 - exp := (code >> mantBits) & expMask - mant := code & ((1 << mantBits) - 1) - return (mant | 0x1000) << (exp + 3) * time.Millisecond -} - -// MulticastAddress returns the Multicast Address. -func (m MLDv2Query) MulticastAddress() tcpip.Address { - // As per RFC 2710 section 3.5: - // - // In a Query message, the Multicast Address field is set to zero when - // sending a General Query, and set to a specific IPv6 multicast address - // when sending a Multicast-Address-Specific Query. - // - // In a Report or Done message, the Multicast Address field holds a - // specific IPv6 multicast address to which the message sender is - // listening or is ceasing to listen, respectively. - return tcpip.AddrFrom16([16]byte(m[mldMulticastAddressOffset:][:IPv6AddressSize])) -} - -// QuerierRobustnessVariable returns the querier's robustness variable. -func (m MLDv2Query) QuerierRobustnessVariable() uint8 { - return m[mldv2QueryResvSQRVOffset] & mldv2QueryQRVMask -} - -// QuerierQueryInterval returns the querier's query interval. -func (m MLDv2Query) QuerierQueryInterval() time.Duration { - return mldv2AndIGMPv3QuerierQueryCodeToInterval(m[mldv2QueryQQICOffset]) -} - -// Sources returns an iterator over source addresses in the query. -// -// Returns false if the message cannot hold the expected number of sources. -func (m MLDv2Query) Sources() (AddressIterator, bool) { - return makeAddressIterator( - m[mldv2QuerySourcesOffset:], - binary.BigEndian.Uint16(m[mldv2QueryNumberOfSourcesOffset:]), - IPv6AddressSize, - ) -} - -// MLDv2ReportRecordType is the type of an MLDv2 multicast address record -// found in an MLDv2 report, as per RFC 3810 section 5.2.12. -type MLDv2ReportRecordType int - -// MLDv2 multicast address record types, as per RFC 3810 section 5.2.12. -const ( - MLDv2ReportRecordModeIsInclude MLDv2ReportRecordType = 1 - MLDv2ReportRecordModeIsExclude MLDv2ReportRecordType = 2 - MLDv2ReportRecordChangeToIncludeMode MLDv2ReportRecordType = 3 - MLDv2ReportRecordChangeToExcludeMode MLDv2ReportRecordType = 4 - MLDv2ReportRecordAllowNewSources MLDv2ReportRecordType = 5 - MLDv2ReportRecordBlockOldSources MLDv2ReportRecordType = 6 -) - -const ( - mldv2ReportMulticastAddressRecordMinimumSize = 20 - mldv2ReportMulticastAddressRecordTypeOffset = 0 - mldv2ReportMulticastAddressRecordAuxDataLenOffset = 1 - mldv2ReportMulticastAddressRecordAuxDataLenUnits = 4 - mldv2ReportMulticastAddressRecordNumberOfSourcesOffset = 2 - mldv2ReportMulticastAddressRecordMulticastAddressOffset = 4 - mldv2ReportMulticastAddressRecordSourcesOffset = 20 -) - -// MLDv2ReportMulticastAddressRecordSerializer is an MLDv2 Multicast Address -// Record serializer. -// -// As per RFC 3810 section 5.2, a Multicast Address Record has the following -// internal format: -// -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Record Type | Aux Data Len | Number of Sources (N) | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// * * -// | | -// * Multicast Address * -// | | -// * * -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// * * -// | | -// * Source Address [1] * -// | | -// * * -// | | -// +- -+ -// | | -// * * -// | | -// * Source Address [2] * -// | | -// * * -// | | -// +- -+ -// . . . -// . . . -// . . . -// +- -+ -// | | -// * * -// | | -// * Source Address [N] * -// | | -// * * -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Auxiliary Data . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -type MLDv2ReportMulticastAddressRecordSerializer struct { - RecordType MLDv2ReportRecordType - MulticastAddress tcpip.Address - Sources []tcpip.Address -} - -// Length returns the number of bytes this serializer would occupy. -func (s *MLDv2ReportMulticastAddressRecordSerializer) Length() int { - return mldv2ReportMulticastAddressRecordSourcesOffset + len(s.Sources)*IPv6AddressSize -} - -func copyIPv6Address(dst []byte, src tcpip.Address) { - if n := copy(dst, src.AsSlice()); n != IPv6AddressSize { - panic(fmt.Sprintf("got copy(...) = %d, want = %d", n, IPv6AddressSize)) - } -} - -// SerializeInto serializes the record into the buffer. -// -// Panics if the buffer does not have enough space to fit the record. -func (s *MLDv2ReportMulticastAddressRecordSerializer) SerializeInto(b []byte) { - b[mldv2ReportMulticastAddressRecordTypeOffset] = byte(s.RecordType) - b[mldv2ReportMulticastAddressRecordAuxDataLenOffset] = 0 - binary.BigEndian.PutUint16(b[mldv2ReportMulticastAddressRecordNumberOfSourcesOffset:], uint16(len(s.Sources))) - copyIPv6Address(b[mldv2ReportMulticastAddressRecordMulticastAddressOffset:], s.MulticastAddress) - b = b[mldv2ReportMulticastAddressRecordSourcesOffset:] - for _, source := range s.Sources { - copyIPv6Address(b, source) - b = b[IPv6AddressSize:] - } -} - -const ( - mldv2ReportReservedOffset = 0 - mldv2ReportNumberOfMulticastAddressRecordsOffset = 2 - mldv2ReportMulticastAddressRecordsOffset = 4 -) - -// MLDv2ReportSerializer is an MLD Version 2 Report serializer. -// -// As per RFC 3810 section 5.2, -// -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Type = 143 | Reserved | Checksum | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Reserved |Nr of Mcast Address Records (M)| -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Multicast Address Record [1] . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Multicast Address Record [2] . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | . | -// . . . -// | . | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Multicast Address Record [M] . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -type MLDv2ReportSerializer struct { - Records []MLDv2ReportMulticastAddressRecordSerializer -} - -// Length returns the number of bytes this serializer would occupy. -func (s *MLDv2ReportSerializer) Length() int { - ret := mldv2ReportMulticastAddressRecordsOffset - for _, record := range s.Records { - ret += record.Length() - } - return ret -} - -// SerializeInto serializes the report into the buffer. -// -// Panics if the buffer does not have enough space to fit the report. -func (s *MLDv2ReportSerializer) SerializeInto(b []byte) { - binary.BigEndian.PutUint16(b[mldv2ReportReservedOffset:], 0) - binary.BigEndian.PutUint16(b[mldv2ReportNumberOfMulticastAddressRecordsOffset:], uint16(len(s.Records))) - b = b[mldv2ReportMulticastAddressRecordsOffset:] - for _, record := range s.Records { - len := record.Length() - record.SerializeInto(b[:len]) - b = b[len:] - } -} - -// MLDv2ReportMulticastAddressRecord is an MLDv2 record. -// -// As per RFC 3810 section 5.2, a Multicast Address Record has the following -// internal format: -// -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Record Type | Aux Data Len | Number of Sources (N) | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// * * -// | | -// * Multicast Address * -// | | -// * * -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// * * -// | | -// * Source Address [1] * -// | | -// * * -// | | -// +- -+ -// | | -// * * -// | | -// * Source Address [2] * -// | | -// * * -// | | -// +- -+ -// . . . -// . . . -// . . . -// +- -+ -// | | -// * * -// | | -// * Source Address [N] * -// | | -// * * -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Auxiliary Data . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -type MLDv2ReportMulticastAddressRecord []byte - -// RecordType returns the type of this record. -func (r MLDv2ReportMulticastAddressRecord) RecordType() MLDv2ReportRecordType { - return MLDv2ReportRecordType(r[mldv2ReportMulticastAddressRecordTypeOffset]) -} - -// AuxDataLen returns the length of the auxiliary data in this record. -func (r MLDv2ReportMulticastAddressRecord) AuxDataLen() int { - return int(r[mldv2ReportMulticastAddressRecordAuxDataLenOffset]) * mldv2ReportMulticastAddressRecordAuxDataLenUnits -} - -// numberOfSources returns the number of sources in this record. -func (r MLDv2ReportMulticastAddressRecord) numberOfSources() uint16 { - return binary.BigEndian.Uint16(r[mldv2ReportMulticastAddressRecordNumberOfSourcesOffset:]) -} - -// MulticastAddress returns the multicast address this record targets. -func (r MLDv2ReportMulticastAddressRecord) MulticastAddress() tcpip.Address { - return tcpip.AddrFrom16([16]byte(r[mldv2ReportMulticastAddressRecordMulticastAddressOffset:][:IPv6AddressSize])) -} - -// Sources returns an iterator over source addresses in the query. -// -// Returns false if the message cannot hold the expected number of sources. -func (r MLDv2ReportMulticastAddressRecord) Sources() (AddressIterator, bool) { - expectedLen := int(r.numberOfSources()) * IPv6AddressSize - b := r[mldv2ReportMulticastAddressRecordSourcesOffset:] - if len(b) < expectedLen { - return AddressIterator{}, false - } - return AddressIterator{addressSize: IPv6AddressSize, buf: bytes.NewBuffer(b[:expectedLen])}, true -} - -// MLDv2Report is an MLDv2 Report. -// -// As per RFC 3810 section 5.2, -// -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Type = 143 | Reserved | Checksum | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Reserved |Nr of Mcast Address Records (M)| -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Multicast Address Record [1] . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Multicast Address Record [2] . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | . | -// . . . -// | . | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | | -// . . -// . Multicast Address Record [M] . -// . . -// | | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -type MLDv2Report []byte - -// MLDv2ReportMulticastAddressRecordIterator is an iterator over MLDv2 Multicast -// Address Records. -type MLDv2ReportMulticastAddressRecordIterator struct { - recordsLeft uint16 - buf *bytes.Buffer -} - -// MLDv2ReportMulticastAddressRecordIteratorNextDisposition is the possible -// return values from MLDv2ReportMulticastAddressRecordIterator.Next. -type MLDv2ReportMulticastAddressRecordIteratorNextDisposition int - -const ( - // MLDv2ReportMulticastAddressRecordIteratorNextOk indicates that a multicast - // address record was yielded. - MLDv2ReportMulticastAddressRecordIteratorNextOk MLDv2ReportMulticastAddressRecordIteratorNextDisposition = iota - - // MLDv2ReportMulticastAddressRecordIteratorNextDone indicates that the iterator - // has been exhausted. - MLDv2ReportMulticastAddressRecordIteratorNextDone - - // MLDv2ReportMulticastAddressRecordIteratorNextErrBufferTooShort indicates - // that the iterator expected another record, but the buffer ended - // prematurely. - MLDv2ReportMulticastAddressRecordIteratorNextErrBufferTooShort -) - -// Next returns the next MLDv2 Multicast Address Record. -func (it *MLDv2ReportMulticastAddressRecordIterator) Next() (MLDv2ReportMulticastAddressRecord, MLDv2ReportMulticastAddressRecordIteratorNextDisposition) { - if it.recordsLeft == 0 { - return MLDv2ReportMulticastAddressRecord{}, MLDv2ReportMulticastAddressRecordIteratorNextDone - } - if it.buf.Len() < mldv2ReportMulticastAddressRecordMinimumSize { - return MLDv2ReportMulticastAddressRecord{}, MLDv2ReportMulticastAddressRecordIteratorNextErrBufferTooShort - } - - hdr := MLDv2ReportMulticastAddressRecord(it.buf.Bytes()) - expectedLen := mldv2ReportMulticastAddressRecordMinimumSize + - int(hdr.AuxDataLen()) + int(hdr.numberOfSources())*IPv6AddressSize - - bytes := it.buf.Next(expectedLen) - if len(bytes) < expectedLen { - return MLDv2ReportMulticastAddressRecord{}, MLDv2ReportMulticastAddressRecordIteratorNextErrBufferTooShort - } - it.recordsLeft-- - return MLDv2ReportMulticastAddressRecord(bytes), MLDv2ReportMulticastAddressRecordIteratorNextOk -} - -// MulticastAddressRecords returns an iterator of MLDv2 Multicast Address -// Records. -func (m MLDv2Report) MulticastAddressRecords() MLDv2ReportMulticastAddressRecordIterator { - return MLDv2ReportMulticastAddressRecordIterator{ - recordsLeft: binary.BigEndian.Uint16(m[mldv2ReportNumberOfMulticastAddressRecordsOffset:]), - buf: bytes.NewBuffer(m[mldv2ReportMulticastAddressRecordsOffset:]), - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/mldv2_igmpv3_common.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/mldv2_igmpv3_common.go deleted file mode 100644 index 94ebc9a2f1..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/mldv2_igmpv3_common.go +++ /dev/null @@ -1,124 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "bytes" - "fmt" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -func mldv2AndIGMPv3QuerierQueryCodeToInterval(code uint8) time.Duration { - // MLDv2: As per RFC 3810 section 5.1.19, - // - // The Querier's Query Interval Code field specifies the [Query - // Interval] used by the Querier. The actual interval, called the - // Querier's Query Interval (QQI), is represented in units of seconds, - // and is derived from the Querier's Query Interval Code as follows: - // - // If QQIC < 128, QQI = QQIC - // - // If QQIC >= 128, QQIC represents a floating-point value as follows: - // - // 0 1 2 3 4 5 6 7 - // +-+-+-+-+-+-+-+-+ - // |1| exp | mant | - // +-+-+-+-+-+-+-+-+ - // - // QQI = (mant | 0x10) << (exp + 3) - // - // Multicast routers that are not the current Querier adopt the QQI - // value from the most recently received Query as their own [Query - // Interval] value, unless that most recently received QQI was zero, in - // which case the receiving routers use the default [Query Interval] - // value specified in section 9.2. - // - // IGMPv3: As per RFC 3376 section 4.1.7, - // - // The Querier's Query Interval Code field specifies the [Query - // Interval] used by the querier. The actual interval, called the - // Querier's Query Interval (QQI), is represented in units of seconds - // and is derived from the Querier's Query Interval Code as follows: - // - // If QQIC < 128, QQI = QQIC - // - // If QQIC >= 128, QQIC represents a floating-point value as follows: - // - // 0 1 2 3 4 5 6 7 - // +-+-+-+-+-+-+-+-+ - // |1| exp | mant | - // +-+-+-+-+-+-+-+-+ - // - // QQI = (mant | 0x10) << (exp + 3) - // - // Multicast routers that are not the current querier adopt the QQI - // value from the most recently received Query as their own [Query - // Interval] value, unless that most recently received QQI was zero, in - // which case the receiving routers use the default [Query Interval] - // value specified in section 8.2. - interval := time.Duration(code) - if interval < 128 { - return interval * time.Second - } - - const expMask = 0b111 - const mantBits = 4 - mant := interval & ((1 << mantBits) - 1) - exp := (interval >> mantBits) & expMask - return (mant | 0x10) << (exp + 3) * time.Second -} - -// MakeAddressIterator returns an AddressIterator. -func MakeAddressIterator(addressSize int, buf *bytes.Buffer) AddressIterator { - return AddressIterator{addressSize: addressSize, buf: buf} -} - -// AddressIterator is an iterator over IPv6 addresses. -type AddressIterator struct { - addressSize int - buf *bytes.Buffer -} - -// Done indicates that the iterator has been exhausted/has no more elements. -func (it *AddressIterator) Done() bool { - return it.buf.Len() == 0 -} - -// Next returns the next address in the iterator. -// -// Returns false if the iterator has been exhausted. -func (it *AddressIterator) Next() (tcpip.Address, bool) { - if it.Done() { - var emptyAddress tcpip.Address - return emptyAddress, false - } - - b := it.buf.Next(it.addressSize) - if len(b) != it.addressSize { - panic(fmt.Sprintf("got len(buf.Next(%d)) = %d, want = %d", it.addressSize, len(b), it.addressSize)) - } - - return tcpip.AddrFromSlice(b), true -} - -func makeAddressIterator(b []byte, expectedAddresses uint16, addressSize int) (AddressIterator, bool) { - expectedLen := int(expectedAddresses) * addressSize - if len(b) < expectedLen { - return AddressIterator{}, false - } - return MakeAddressIterator(addressSize, bytes.NewBuffer(b[:expectedLen])), true -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndp_neighbor_advert.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndp_neighbor_advert.go deleted file mode 100644 index 7af4240561..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndp_neighbor_advert.go +++ /dev/null @@ -1,110 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import "gvisor.dev/gvisor/pkg/tcpip" - -// NDPNeighborAdvert is an NDP Neighbor Advertisement message. It will -// only contain the body of an ICMPv6 packet. -// -// See RFC 4861 section 4.4 for more details. -type NDPNeighborAdvert []byte - -const ( - // NDPNAMinimumSize is the minimum size of a valid NDP Neighbor - // Advertisement message (body of an ICMPv6 packet). - NDPNAMinimumSize = 20 - - // ndpNATargetAddressOffset is the start of the Target Address - // field within an NDPNeighborAdvert. - ndpNATargetAddressOffset = 4 - - // ndpNAOptionsOffset is the start of the NDP options in an - // NDPNeighborAdvert. - ndpNAOptionsOffset = ndpNATargetAddressOffset + IPv6AddressSize - - // ndpNAFlagsOffset is the offset of the flags within an - // NDPNeighborAdvert - ndpNAFlagsOffset = 0 - - // ndpNARouterFlagMask is the mask of the Router Flag field in - // the flags byte within in an NDPNeighborAdvert. - ndpNARouterFlagMask = (1 << 7) - - // ndpNASolicitedFlagMask is the mask of the Solicited Flag field in - // the flags byte within in an NDPNeighborAdvert. - ndpNASolicitedFlagMask = (1 << 6) - - // ndpNAOverrideFlagMask is the mask of the Override Flag field in - // the flags byte within in an NDPNeighborAdvert. - ndpNAOverrideFlagMask = (1 << 5) -) - -// TargetAddress returns the value within the Target Address field. -func (b NDPNeighborAdvert) TargetAddress() tcpip.Address { - return tcpip.AddrFrom16Slice(b[ndpNATargetAddressOffset:][:IPv6AddressSize]) -} - -// SetTargetAddress sets the value within the Target Address field. -func (b NDPNeighborAdvert) SetTargetAddress(addr tcpip.Address) { - copy(b[ndpNATargetAddressOffset:][:IPv6AddressSize], addr.AsSlice()) -} - -// RouterFlag returns the value of the Router Flag field. -func (b NDPNeighborAdvert) RouterFlag() bool { - return b[ndpNAFlagsOffset]&ndpNARouterFlagMask != 0 -} - -// SetRouterFlag sets the value in the Router Flag field. -func (b NDPNeighborAdvert) SetRouterFlag(f bool) { - if f { - b[ndpNAFlagsOffset] |= ndpNARouterFlagMask - } else { - b[ndpNAFlagsOffset] &^= ndpNARouterFlagMask - } -} - -// SolicitedFlag returns the value of the Solicited Flag field. -func (b NDPNeighborAdvert) SolicitedFlag() bool { - return b[ndpNAFlagsOffset]&ndpNASolicitedFlagMask != 0 -} - -// SetSolicitedFlag sets the value in the Solicited Flag field. -func (b NDPNeighborAdvert) SetSolicitedFlag(f bool) { - if f { - b[ndpNAFlagsOffset] |= ndpNASolicitedFlagMask - } else { - b[ndpNAFlagsOffset] &^= ndpNASolicitedFlagMask - } -} - -// OverrideFlag returns the value of the Override Flag field. -func (b NDPNeighborAdvert) OverrideFlag() bool { - return b[ndpNAFlagsOffset]&ndpNAOverrideFlagMask != 0 -} - -// SetOverrideFlag sets the value in the Override Flag field. -func (b NDPNeighborAdvert) SetOverrideFlag(f bool) { - if f { - b[ndpNAFlagsOffset] |= ndpNAOverrideFlagMask - } else { - b[ndpNAFlagsOffset] &^= ndpNAOverrideFlagMask - } -} - -// Options returns an NDPOptions of the options body. -func (b NDPNeighborAdvert) Options() NDPOptions { - return NDPOptions(b[ndpNAOptionsOffset:]) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndp_neighbor_solicit.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndp_neighbor_solicit.go deleted file mode 100644 index d571f91f6d..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndp_neighbor_solicit.go +++ /dev/null @@ -1,52 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import "gvisor.dev/gvisor/pkg/tcpip" - -// NDPNeighborSolicit is an NDP Neighbor Solicitation message. It will only -// contain the body of an ICMPv6 packet. -// -// See RFC 4861 section 4.3 for more details. -type NDPNeighborSolicit []byte - -const ( - // NDPNSMinimumSize is the minimum size of a valid NDP Neighbor - // Solicitation message (body of an ICMPv6 packet). - NDPNSMinimumSize = 20 - - // ndpNSTargetAddessOffset is the start of the Target Address - // field within an NDPNeighborSolicit. - ndpNSTargetAddessOffset = 4 - - // ndpNSOptionsOffset is the start of the NDP options in an - // NDPNeighborSolicit. - ndpNSOptionsOffset = ndpNSTargetAddessOffset + IPv6AddressSize -) - -// TargetAddress returns the value within the Target Address field. -func (b NDPNeighborSolicit) TargetAddress() tcpip.Address { - return tcpip.AddrFrom16Slice(b[ndpNSTargetAddessOffset:][:IPv6AddressSize]) -} - -// SetTargetAddress sets the value within the Target Address field. -func (b NDPNeighborSolicit) SetTargetAddress(addr tcpip.Address) { - copy(b[ndpNSTargetAddessOffset:][:IPv6AddressSize], addr.AsSlice()) -} - -// Options returns an NDPOptions of the options body. -func (b NDPNeighborSolicit) Options() NDPOptions { - return NDPOptions(b[ndpNSOptionsOffset:]) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndp_options.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndp_options.go deleted file mode 100644 index 5fbae169a9..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndp_options.go +++ /dev/null @@ -1,1072 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "bytes" - "encoding/binary" - "errors" - "fmt" - "io" - "math" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -// ndpOptionIdentifier is an NDP option type identifier. -type ndpOptionIdentifier uint8 - -const ( - // ndpSourceLinkLayerAddressOptionType is the type of the Source Link Layer - // Address option, as per RFC 4861 section 4.6.1. - ndpSourceLinkLayerAddressOptionType ndpOptionIdentifier = 1 - - // ndpTargetLinkLayerAddressOptionType is the type of the Target Link Layer - // Address option, as per RFC 4861 section 4.6.1. - ndpTargetLinkLayerAddressOptionType ndpOptionIdentifier = 2 - - // ndpPrefixInformationType is the type of the Prefix Information - // option, as per RFC 4861 section 4.6.2. - ndpPrefixInformationType ndpOptionIdentifier = 3 - - // ndpNonceOptionType is the type of the Nonce option, as per - // RFC 3971 section 5.3.2. - ndpNonceOptionType ndpOptionIdentifier = 14 - - // ndpRecursiveDNSServerOptionType is the type of the Recursive DNS - // Server option, as per RFC 8106 section 5.1. - ndpRecursiveDNSServerOptionType ndpOptionIdentifier = 25 - - // ndpDNSSearchListOptionType is the type of the DNS Search List option, - // as per RFC 8106 section 5.2. - ndpDNSSearchListOptionType ndpOptionIdentifier = 31 -) - -const ( - // NDPLinkLayerAddressSize is the size of a Source or Target Link Layer - // Address option for an Ethernet address. - NDPLinkLayerAddressSize = 8 - - // ndpPrefixInformationLength is the expected length, in bytes, of the - // body of an NDP Prefix Information option, as per RFC 4861 section - // 4.6.2 which specifies that the Length field is 4. Given this, the - // expected length, in bytes, is 30 because 4 * lengthByteUnits (8) - 2 - // (Type & Length) = 30. - ndpPrefixInformationLength = 30 - - // ndpPrefixInformationPrefixLengthOffset is the offset of the Prefix - // Length field within an NDPPrefixInformation. - ndpPrefixInformationPrefixLengthOffset = 0 - - // ndpPrefixInformationFlagsOffset is the offset of the flags byte - // within an NDPPrefixInformation. - ndpPrefixInformationFlagsOffset = 1 - - // ndpPrefixInformationOnLinkFlagMask is the mask of the On-Link Flag - // field in the flags byte within an NDPPrefixInformation. - ndpPrefixInformationOnLinkFlagMask = 1 << 7 - - // ndpPrefixInformationAutoAddrConfFlagMask is the mask of the - // Autonomous Address-Configuration flag field in the flags byte within - // an NDPPrefixInformation. - ndpPrefixInformationAutoAddrConfFlagMask = 1 << 6 - - // ndpPrefixInformationReserved1FlagsMask is the mask of the Reserved1 - // field in the flags byte within an NDPPrefixInformation. - ndpPrefixInformationReserved1FlagsMask = 63 - - // ndpPrefixInformationValidLifetimeOffset is the start of the 4-byte - // Valid Lifetime field within an NDPPrefixInformation. - ndpPrefixInformationValidLifetimeOffset = 2 - - // ndpPrefixInformationPreferredLifetimeOffset is the start of the - // 4-byte Preferred Lifetime field within an NDPPrefixInformation. - ndpPrefixInformationPreferredLifetimeOffset = 6 - - // ndpPrefixInformationReserved2Offset is the start of the 4-byte - // Reserved2 field within an NDPPrefixInformation. - ndpPrefixInformationReserved2Offset = 10 - - // ndpPrefixInformationReserved2Length is the length of the Reserved2 - // field. - // - // It is 4 bytes. - ndpPrefixInformationReserved2Length = 4 - - // ndpPrefixInformationPrefixOffset is the start of the Prefix field - // within an NDPPrefixInformation. - ndpPrefixInformationPrefixOffset = 14 - - // ndpRecursiveDNSServerLifetimeOffset is the start of the 4-byte - // Lifetime field within an NDPRecursiveDNSServer. - ndpRecursiveDNSServerLifetimeOffset = 2 - - // ndpRecursiveDNSServerAddressesOffset is the start of the addresses - // for IPv6 Recursive DNS Servers within an NDPRecursiveDNSServer. - ndpRecursiveDNSServerAddressesOffset = 6 - - // minNDPRecursiveDNSServerLength is the minimum NDP Recursive DNS Server - // option's body size when it contains at least one IPv6 address, as per - // RFC 8106 section 5.3.1. - minNDPRecursiveDNSServerBodySize = 22 - - // ndpDNSSearchListLifetimeOffset is the start of the 4-byte - // Lifetime field within an NDPDNSSearchList. - ndpDNSSearchListLifetimeOffset = 2 - - // ndpDNSSearchListDomainNamesOffset is the start of the DNS search list - // domain names within an NDPDNSSearchList. - ndpDNSSearchListDomainNamesOffset = 6 - - // minNDPDNSSearchListBodySize is the minimum NDP DNS Search List option's - // body size when it contains at least one domain name, as per RFC 8106 - // section 5.3.1. - minNDPDNSSearchListBodySize = 14 - - // maxDomainNameLabelLength is the maximum length of a domain name - // label, as per RFC 1035 section 3.1. - maxDomainNameLabelLength = 63 - - // maxDomainNameLength is the maximum length of a domain name, including - // label AND label length octet, as per RFC 1035 section 3.1. - maxDomainNameLength = 255 - - // lengthByteUnits is the multiplier factor for the Length field of an - // NDP option. That is, the length field for NDP options is in units of - // 8 octets, as per RFC 4861 section 4.6. - lengthByteUnits = 8 - - // NDPInfiniteLifetime is a value that represents infinity for the - // 4-byte lifetime fields found in various NDP options. Its value is - // (2^32 - 1)s = 4294967295s. - NDPInfiniteLifetime = time.Second * math.MaxUint32 -) - -// NDPOptionIterator is an iterator of NDPOption. -// -// Note, between when an NDPOptionIterator is obtained and last used, no changes -// to the NDPOptions may happen. Doing so may cause undefined and unexpected -// behaviour. It is fine to obtain an NDPOptionIterator, iterate over the first -// few NDPOption then modify the backing NDPOptions so long as the -// NDPOptionIterator obtained before modification is no longer used. -type NDPOptionIterator struct { - opts *bytes.Buffer -} - -// Potential errors when iterating over an NDPOptions. -var ( - ErrNDPOptMalformedBody = errors.New("NDP option has a malformed body") - ErrNDPOptMalformedHeader = errors.New("NDP option has a malformed header") -) - -// Next returns the next element in the backing NDPOptions, or true if we are -// done, or false if an error occurred. -// -// The return can be read as option, done, error. Note, option should only be -// used if done is false and error is nil. -func (i *NDPOptionIterator) Next() (NDPOption, bool, error) { - for { - // Do we still have elements to look at? - if i.opts.Len() == 0 { - return nil, true, nil - } - - // Get the Type field. - temp, err := i.opts.ReadByte() - if err != nil { - if err != io.EOF { - // ReadByte should only ever return nil or io.EOF. - panic(fmt.Sprintf("unexpected error when reading the option's Type field: %s", err)) - } - - // We use io.ErrUnexpectedEOF as exhausting the buffer is unexpected once - // we start parsing an option; we expect the buffer to contain enough - // bytes for the whole option. - return nil, true, fmt.Errorf("unexpectedly exhausted buffer when reading the option's Type field: %w", io.ErrUnexpectedEOF) - } - kind := ndpOptionIdentifier(temp) - - // Get the Length field. - length, err := i.opts.ReadByte() - if err != nil { - if err != io.EOF { - panic(fmt.Sprintf("unexpected error when reading the option's Length field for %s: %s", kind, err)) - } - - return nil, true, fmt.Errorf("unexpectedly exhausted buffer when reading the option's Length field for %s: %w", kind, io.ErrUnexpectedEOF) - } - - // This would indicate an erroneous NDP option as the Length field should - // never be 0. - if length == 0 { - return nil, true, fmt.Errorf("zero valued Length field for %s: %w", kind, ErrNDPOptMalformedHeader) - } - - // Get the body. - numBytes := int(length) * lengthByteUnits - numBodyBytes := numBytes - 2 - body := i.opts.Next(numBodyBytes) - if len(body) < numBodyBytes { - return nil, true, fmt.Errorf("unexpectedly exhausted buffer when reading the option's Body for %s: %w", kind, io.ErrUnexpectedEOF) - } - - switch kind { - case ndpSourceLinkLayerAddressOptionType: - return NDPSourceLinkLayerAddressOption(body), false, nil - - case ndpTargetLinkLayerAddressOptionType: - return NDPTargetLinkLayerAddressOption(body), false, nil - - case ndpNonceOptionType: - return NDPNonceOption(body), false, nil - - case ndpRouteInformationType: - if numBodyBytes > ndpRouteInformationMaxLength { - return nil, true, fmt.Errorf("got %d bytes for NDP Route Information option's body, expected at max %d bytes: %w", numBodyBytes, ndpRouteInformationMaxLength, ErrNDPOptMalformedBody) - } - opt := NDPRouteInformation(body) - if err := opt.hasError(); err != nil { - return nil, true, err - } - - return opt, false, nil - - case ndpPrefixInformationType: - // Make sure the length of a Prefix Information option - // body is ndpPrefixInformationLength, as per RFC 4861 - // section 4.6.2. - if numBodyBytes != ndpPrefixInformationLength { - return nil, true, fmt.Errorf("got %d bytes for NDP Prefix Information option's body, expected %d bytes: %w", numBodyBytes, ndpPrefixInformationLength, ErrNDPOptMalformedBody) - } - - return NDPPrefixInformation(body), false, nil - - case ndpRecursiveDNSServerOptionType: - opt := NDPRecursiveDNSServer(body) - if err := opt.checkAddresses(); err != nil { - return nil, true, err - } - - return opt, false, nil - - case ndpDNSSearchListOptionType: - opt := NDPDNSSearchList(body) - if err := opt.checkDomainNames(); err != nil { - return nil, true, err - } - - return opt, false, nil - - default: - // We do not yet recognize the option, just skip for - // now. This is okay because RFC 4861 allows us to - // skip/ignore any unrecognized options. However, - // we MUST recognized all the options in RFC 4861. - // - // TODO(b/141487990): Handle all NDP options as defined - // by RFC 4861. - } - } -} - -// NDPOptions is a buffer of NDP options as defined by RFC 4861 section 4.6. -type NDPOptions []byte - -// Iter returns an iterator of NDPOption. -// -// If check is true, Iter will do an integrity check on the options by iterating -// over it and returning an error if detected. -// -// See NDPOptionIterator for more information. -func (b NDPOptions) Iter(check bool) (NDPOptionIterator, error) { - it := NDPOptionIterator{ - opts: bytes.NewBuffer(b), - } - - if check { - it2 := NDPOptionIterator{ - opts: bytes.NewBuffer(b), - } - - for { - if _, done, err := it2.Next(); err != nil || done { - return it, err - } - } - } - - return it, nil -} - -// Serialize serializes the provided list of NDP options into b. -// -// Note, b must be of sufficient size to hold all the options in s. See -// NDPOptionsSerializer.Length for details on the getting the total size -// of a serialized NDPOptionsSerializer. -// -// Serialize may panic if b is not of sufficient size to hold all the options -// in s. -func (b NDPOptions) Serialize(s NDPOptionsSerializer) int { - done := 0 - - for _, o := range s { - l := paddedLength(o) - - if l == 0 { - continue - } - - b[0] = byte(o.kind()) - - // We know this safe because paddedLength would have returned - // 0 if o had an invalid length (> 255 * lengthByteUnits). - b[1] = uint8(l / lengthByteUnits) - - // Serialize NDP option body. - used := o.serializeInto(b[2:]) - - // Zero out remaining (padding) bytes, if any exists. - if used+2 < l { - clear(b[used+2 : l]) - } - - b = b[l:] - done += l - } - - return done -} - -// NDPOption is the set of functions to be implemented by all NDP option types. -type NDPOption interface { - fmt.Stringer - - // kind returns the type of the receiver. - kind() ndpOptionIdentifier - - // length returns the length of the body of the receiver, in bytes. - length() int - - // serializeInto serializes the receiver into the provided byte - // buffer. - // - // Note, the caller MUST provide a byte buffer with size of at least - // Length. Implementers of this function may assume that the byte buffer - // is of sufficient size. serializeInto MAY panic if the provided byte - // buffer is not of sufficient size. - // - // serializeInto will return the number of bytes that was used to - // serialize the receiver. Implementers must only use the number of - // bytes required to serialize the receiver. Callers MAY provide a - // larger buffer than required to serialize into. - serializeInto([]byte) int -} - -// paddedLength returns the length of o, in bytes, with any padding bytes, if -// required. -func paddedLength(o NDPOption) int { - l := o.length() - - if l == 0 { - return 0 - } - - // Length excludes the 2 Type and Length bytes. - l += 2 - - // Add extra bytes if needed to make sure the option is - // lengthByteUnits-byte aligned. We do this by adding lengthByteUnits-1 - // to l and then stripping off the last few LSBits from l. This will - // make sure that l is rounded up to the nearest unit of - // lengthByteUnits. This works since lengthByteUnits is a power of 2 - // (= 8). - mask := lengthByteUnits - 1 - l += mask - l &^= mask - - if l/lengthByteUnits > 255 { - // Should never happen because an option can only have a max - // value of 255 for its Length field, so just return 0 so this - // option does not get serialized. - // - // Returning 0 here will make sure that this option does not get - // serialized when NDPOptions.Serialize is called with the - // NDPOptionsSerializer that holds this option, effectively - // skipping this option during serialization. Also note that - // a value of zero for the Length field in an NDP option is - // invalid so this is another sign to the caller that this NDP - // option is malformed, as per RFC 4861 section 4.6. - return 0 - } - - return l -} - -// NDPOptionsSerializer is a serializer for NDP options. -type NDPOptionsSerializer []NDPOption - -// Length returns the total number of bytes required to serialize. -func (b NDPOptionsSerializer) Length() int { - l := 0 - - for _, o := range b { - l += paddedLength(o) - } - - return l -} - -// NDPNonceOption is the NDP Nonce Option as defined by RFC 3971 section 5.3.2. -// -// It is the first X bytes following the NDP option's Type and Length field -// where X is the value in Length multiplied by lengthByteUnits - 2 bytes. -type NDPNonceOption []byte - -// kind implements NDPOption. -func (o NDPNonceOption) kind() ndpOptionIdentifier { - return ndpNonceOptionType -} - -// length implements NDPOption. -func (o NDPNonceOption) length() int { - return len(o) -} - -// serializeInto implements NDPOption. -func (o NDPNonceOption) serializeInto(b []byte) int { - return copy(b, o) -} - -// String implements fmt.Stringer. -func (o NDPNonceOption) String() string { - return fmt.Sprintf("%T(%x)", o, []byte(o)) -} - -// Nonce returns the nonce value this option holds. -func (o NDPNonceOption) Nonce() []byte { - return o -} - -// NDPSourceLinkLayerAddressOption is the NDP Source Link Layer Option -// as defined by RFC 4861 section 4.6.1. -// -// It is the first X bytes following the NDP option's Type and Length field -// where X is the value in Length multiplied by lengthByteUnits - 2 bytes. -type NDPSourceLinkLayerAddressOption tcpip.LinkAddress - -// kind implements NDPOption. -func (o NDPSourceLinkLayerAddressOption) kind() ndpOptionIdentifier { - return ndpSourceLinkLayerAddressOptionType -} - -// length implements NDPOption. -func (o NDPSourceLinkLayerAddressOption) length() int { - return len(o) -} - -// serializeInto implements NDPOption. -func (o NDPSourceLinkLayerAddressOption) serializeInto(b []byte) int { - return copy(b, o) -} - -// String implements fmt.Stringer. -func (o NDPSourceLinkLayerAddressOption) String() string { - return fmt.Sprintf("%T(%s)", o, tcpip.LinkAddress(o)) -} - -// EthernetAddress will return an ethernet (MAC) address if the -// NDPSourceLinkLayerAddressOption's body has at minimum EthernetAddressSize -// bytes. If the body has more than EthernetAddressSize bytes, only the first -// EthernetAddressSize bytes are returned as that is all that is needed for an -// Ethernet address. -func (o NDPSourceLinkLayerAddressOption) EthernetAddress() tcpip.LinkAddress { - if len(o) >= EthernetAddressSize { - return tcpip.LinkAddress(o[:EthernetAddressSize]) - } - - return tcpip.LinkAddress([]byte(nil)) -} - -// NDPTargetLinkLayerAddressOption is the NDP Target Link Layer Option -// as defined by RFC 4861 section 4.6.1. -// -// It is the first X bytes following the NDP option's Type and Length field -// where X is the value in Length multiplied by lengthByteUnits - 2 bytes. -type NDPTargetLinkLayerAddressOption tcpip.LinkAddress - -// kind implements NDPOption. -func (o NDPTargetLinkLayerAddressOption) kind() ndpOptionIdentifier { - return ndpTargetLinkLayerAddressOptionType -} - -// length implements NDPOption. -func (o NDPTargetLinkLayerAddressOption) length() int { - return len(o) -} - -// serializeInto implements NDPOption. -func (o NDPTargetLinkLayerAddressOption) serializeInto(b []byte) int { - return copy(b, o) -} - -// String implements fmt.Stringer. -func (o NDPTargetLinkLayerAddressOption) String() string { - return fmt.Sprintf("%T(%s)", o, tcpip.LinkAddress(o)) -} - -// EthernetAddress will return an ethernet (MAC) address if the -// NDPTargetLinkLayerAddressOption's body has at minimum EthernetAddressSize -// bytes. If the body has more than EthernetAddressSize bytes, only the first -// EthernetAddressSize bytes are returned as that is all that is needed for an -// Ethernet address. -func (o NDPTargetLinkLayerAddressOption) EthernetAddress() tcpip.LinkAddress { - if len(o) >= EthernetAddressSize { - return tcpip.LinkAddress(o[:EthernetAddressSize]) - } - - return tcpip.LinkAddress([]byte(nil)) -} - -// NDPPrefixInformation is the NDP Prefix Information option as defined by -// RFC 4861 section 4.6.2. -// -// The length, in bytes, of a valid NDP Prefix Information option body MUST be -// ndpPrefixInformationLength bytes. -type NDPPrefixInformation []byte - -// kind implements NDPOption. -func (o NDPPrefixInformation) kind() ndpOptionIdentifier { - return ndpPrefixInformationType -} - -// length implements NDPOption. -func (o NDPPrefixInformation) length() int { - return ndpPrefixInformationLength -} - -// serializeInto implements NDPOption. -func (o NDPPrefixInformation) serializeInto(b []byte) int { - used := copy(b, o) - - // Zero out the Reserved1 field. - b[ndpPrefixInformationFlagsOffset] &^= ndpPrefixInformationReserved1FlagsMask - - // Zero out the Reserved2 field. - reserved2 := b[ndpPrefixInformationReserved2Offset:][:ndpPrefixInformationReserved2Length] - clear(reserved2) - - return used -} - -// String implements fmt.Stringer. -func (o NDPPrefixInformation) String() string { - return fmt.Sprintf("%T(O=%t, A=%t, PL=%s, VL=%s, Prefix=%s)", - o, - o.OnLinkFlag(), - o.AutonomousAddressConfigurationFlag(), - o.PreferredLifetime(), - o.ValidLifetime(), - o.Subnet()) -} - -// PrefixLength returns the value in the number of leading bits in the Prefix -// that are valid. -// -// Valid values are in the range [0, 128], but o may not always contain valid -// values. It is up to the caller to valdiate the Prefix Information option. -func (o NDPPrefixInformation) PrefixLength() uint8 { - return o[ndpPrefixInformationPrefixLengthOffset] -} - -// OnLinkFlag returns true of the prefix is considered on-link. On-link means -// that a forwarding node is not needed to send packets to other nodes on the -// same prefix. -// -// Note, when this function returns false, no statement is made about the -// on-link property of a prefix. That is, if OnLinkFlag returns false, the -// caller MUST NOT conclude that the prefix is off-link and MUST NOT update any -// previously stored state for this prefix about its on-link status. -func (o NDPPrefixInformation) OnLinkFlag() bool { - return o[ndpPrefixInformationFlagsOffset]&ndpPrefixInformationOnLinkFlagMask != 0 -} - -// AutonomousAddressConfigurationFlag returns true if the prefix can be used for -// Stateless Address Auto-Configuration (as specified in RFC 4862). -func (o NDPPrefixInformation) AutonomousAddressConfigurationFlag() bool { - return o[ndpPrefixInformationFlagsOffset]&ndpPrefixInformationAutoAddrConfFlagMask != 0 -} - -// ValidLifetime returns the length of time that the prefix is valid for the -// purpose of on-link determination. This value is relative to the send time of -// the packet that the Prefix Information option was present in. -// -// Note, a value of 0 implies the prefix should not be considered as on-link, -// and a value of infinity/forever is represented by -// NDPInfiniteLifetime. -func (o NDPPrefixInformation) ValidLifetime() time.Duration { - // The field is the time in seconds, as per RFC 4861 section 4.6.2. - return time.Second * time.Duration(binary.BigEndian.Uint32(o[ndpPrefixInformationValidLifetimeOffset:])) -} - -// PreferredLifetime returns the length of time that an address generated from -// the prefix via Stateless Address Auto-Configuration remains preferred. This -// value is relative to the send time of the packet that the Prefix Information -// option was present in. -// -// Note, a value of 0 implies that addresses generated from the prefix should -// no longer remain preferred, and a value of infinity is represented by -// NDPInfiniteLifetime. -// -// Also note that the value of this field MUST NOT exceed the Valid Lifetime -// field to avoid preferring addresses that are no longer valid, for the -// purpose of Stateless Address Auto-Configuration. -func (o NDPPrefixInformation) PreferredLifetime() time.Duration { - // The field is the time in seconds, as per RFC 4861 section 4.6.2. - return time.Second * time.Duration(binary.BigEndian.Uint32(o[ndpPrefixInformationPreferredLifetimeOffset:])) -} - -// Prefix returns an IPv6 address or a prefix of an IPv6 address. The Prefix -// Length field (see NDPPrefixInformation.PrefixLength) contains the number -// of valid leading bits in the prefix. -// -// Hosts SHOULD ignore an NDP Prefix Information option where the Prefix field -// holds the link-local prefix (fe80::). -func (o NDPPrefixInformation) Prefix() tcpip.Address { - return tcpip.AddrFrom16Slice(o[ndpPrefixInformationPrefixOffset:][:IPv6AddressSize]) -} - -// Subnet returns the Prefix field and Prefix Length field represented in a -// tcpip.Subnet. -func (o NDPPrefixInformation) Subnet() tcpip.Subnet { - addrWithPrefix := tcpip.AddressWithPrefix{ - Address: o.Prefix(), - PrefixLen: int(o.PrefixLength()), - } - return addrWithPrefix.Subnet() -} - -// NDPRecursiveDNSServer is the NDP Recursive DNS Server option, as defined by -// RFC 8106 section 5.1. -// -// To make sure that the option meets its minimum length and does not end in the -// middle of a DNS server's IPv6 address, the length of a valid -// NDPRecursiveDNSServer must meet the following constraint: -// -// (Length - ndpRecursiveDNSServerAddressesOffset) % IPv6AddressSize == 0 -type NDPRecursiveDNSServer []byte - -// Type returns the type of an NDP Recursive DNS Server option. -// -// kind implements NDPOption. -func (NDPRecursiveDNSServer) kind() ndpOptionIdentifier { - return ndpRecursiveDNSServerOptionType -} - -// length implements NDPOption. -func (o NDPRecursiveDNSServer) length() int { - return len(o) -} - -// serializeInto implements NDPOption. -func (o NDPRecursiveDNSServer) serializeInto(b []byte) int { - used := copy(b, o) - - // Zero out the reserved bytes that are before the Lifetime field. - clear(b[0:ndpRecursiveDNSServerLifetimeOffset]) - - return used -} - -// String implements fmt.Stringer. -func (o NDPRecursiveDNSServer) String() string { - lt := o.Lifetime() - addrs, err := o.Addresses() - if err != nil { - return fmt.Sprintf("%T([] valid for %s; err = %s)", o, lt, err) - } - return fmt.Sprintf("%T(%s valid for %s)", o, addrs, lt) -} - -// Lifetime returns the length of time that the DNS server addresses -// in this option may be used for name resolution. -// -// Note, a value of 0 implies the addresses should no longer be used, -// and a value of infinity/forever is represented by NDPInfiniteLifetime. -// -// Lifetime may panic if o does not have enough bytes to hold the Lifetime -// field. -func (o NDPRecursiveDNSServer) Lifetime() time.Duration { - // The field is the time in seconds, as per RFC 8106 section 5.1. - return time.Second * time.Duration(binary.BigEndian.Uint32(o[ndpRecursiveDNSServerLifetimeOffset:])) -} - -// Addresses returns the recursive DNS server IPv6 addresses that may be -// used for name resolution. -// -// Note, the addresses MAY be link-local addresses. -func (o NDPRecursiveDNSServer) Addresses() ([]tcpip.Address, error) { - var addrs []tcpip.Address - return addrs, o.iterAddresses(func(addr tcpip.Address) { addrs = append(addrs, addr) }) -} - -// checkAddresses iterates over the addresses in an NDP Recursive DNS Server -// option and returns any error it encounters. -func (o NDPRecursiveDNSServer) checkAddresses() error { - return o.iterAddresses(nil) -} - -// iterAddresses iterates over the addresses in an NDP Recursive DNS Server -// option and calls a function with each valid unicast IPv6 address. -// -// Note, the addresses MAY be link-local addresses. -func (o NDPRecursiveDNSServer) iterAddresses(fn func(tcpip.Address)) error { - if l := len(o); l < minNDPRecursiveDNSServerBodySize { - return fmt.Errorf("got %d bytes for NDP Recursive DNS Server option's body, expected at least %d bytes: %w", l, minNDPRecursiveDNSServerBodySize, io.ErrUnexpectedEOF) - } - - o = o[ndpRecursiveDNSServerAddressesOffset:] - l := len(o) - if l%IPv6AddressSize != 0 { - return fmt.Errorf("NDP Recursive DNS Server option's body ends in the middle of an IPv6 address (addresses body size = %d bytes): %w", l, ErrNDPOptMalformedBody) - } - - for i := 0; len(o) != 0; i++ { - addr := tcpip.AddrFrom16Slice(o[:IPv6AddressSize]) - if !IsV6UnicastAddress(addr) { - return fmt.Errorf("%d-th address (%s) in NDP Recursive DNS Server option is not a valid unicast IPv6 address: %w", i, addr, ErrNDPOptMalformedBody) - } - - if fn != nil { - fn(addr) - } - - o = o[IPv6AddressSize:] - } - - return nil -} - -// NDPDNSSearchList is the NDP DNS Search List option, as defined by -// RFC 8106 section 5.2. -type NDPDNSSearchList []byte - -// kind implements NDPOption. -func (o NDPDNSSearchList) kind() ndpOptionIdentifier { - return ndpDNSSearchListOptionType -} - -// length implements NDPOption. -func (o NDPDNSSearchList) length() int { - return len(o) -} - -// serializeInto implements NDPOption. -func (o NDPDNSSearchList) serializeInto(b []byte) int { - used := copy(b, o) - - // Zero out the reserved bytes that are before the Lifetime field. - clear(b[0:ndpDNSSearchListLifetimeOffset]) - - return used -} - -// String implements fmt.Stringer. -func (o NDPDNSSearchList) String() string { - lt := o.Lifetime() - domainNames, err := o.DomainNames() - if err != nil { - return fmt.Sprintf("%T([] valid for %s; err = %s)", o, lt, err) - } - return fmt.Sprintf("%T(%s valid for %s)", o, domainNames, lt) -} - -// Lifetime returns the length of time that the DNS search list of domain names -// in this option may be used for name resolution. -// -// Note, a value of 0 implies the domain names should no longer be used, -// and a value of infinity/forever is represented by NDPInfiniteLifetime. -func (o NDPDNSSearchList) Lifetime() time.Duration { - // The field is the time in seconds, as per RFC 8106 section 5.1. - return time.Second * time.Duration(binary.BigEndian.Uint32(o[ndpDNSSearchListLifetimeOffset:])) -} - -// DomainNames returns a DNS search list of domain names. -// -// DomainNames will parse the backing buffer as outlined by RFC 1035 section -// 3.1 and return a list of strings, with all domain names in lower case. -func (o NDPDNSSearchList) DomainNames() ([]string, error) { - var domainNames []string - return domainNames, o.iterDomainNames(func(domainName string) { domainNames = append(domainNames, domainName) }) -} - -// checkDomainNames iterates over the domain names in an NDP DNS Search List -// option and returns any error it encounters. -func (o NDPDNSSearchList) checkDomainNames() error { - return o.iterDomainNames(nil) -} - -// iterDomainNames iterates over the domain names in an NDP DNS Search List -// option and calls a function with each valid domain name. -func (o NDPDNSSearchList) iterDomainNames(fn func(string)) error { - if l := len(o); l < minNDPDNSSearchListBodySize { - return fmt.Errorf("got %d bytes for NDP DNS Search List option's body, expected at least %d bytes: %w", l, minNDPDNSSearchListBodySize, io.ErrUnexpectedEOF) - } - - var searchList bytes.Reader - searchList.Reset(o[ndpDNSSearchListDomainNamesOffset:]) - - var scratch [maxDomainNameLength]byte - domainName := bytes.NewBuffer(scratch[:]) - - // Parse the domain names, as per RFC 1035 section 3.1. - for searchList.Len() != 0 { - domainName.Reset() - - // Parse a label within a domain name, as per RFC 1035 section 3.1. - for { - // The first byte is the label length. - labelLenByte, err := searchList.ReadByte() - if err != nil { - if err != io.EOF { - // ReadByte should only ever return nil or io.EOF. - panic(fmt.Sprintf("unexpected error when reading a label's length: %s", err)) - } - - // We use io.ErrUnexpectedEOF as exhausting the buffer is unexpected - // once we start parsing a domain name; we expect the buffer to contain - // enough bytes for the whole domain name. - return fmt.Errorf("unexpected exhausted buffer while parsing a new label for a domain from NDP Search List option: %w", io.ErrUnexpectedEOF) - } - labelLen := int(labelLenByte) - - // A zero-length label implies the end of a domain name. - if labelLen == 0 { - // If the domain name is empty or we have no callback function, do - // nothing further with the current domain name. - if domainName.Len() == 0 || fn == nil { - break - } - - // Ignore the trailing period in the parsed domain name. - domainName.Truncate(domainName.Len() - 1) - fn(domainName.String()) - break - } - - // The label's length must not exceed the maximum length for a label. - if labelLen > maxDomainNameLabelLength { - return fmt.Errorf("label length of %d bytes is greater than the max label length of %d bytes for an NDP Search List option: %w", labelLen, maxDomainNameLabelLength, ErrNDPOptMalformedBody) - } - - // The label (and trailing period) must not make the domain name too long. - if labelLen+1 > domainName.Cap()-domainName.Len() { - return fmt.Errorf("label would make an NDP Search List option's domain name longer than the max domain name length of %d bytes: %w", maxDomainNameLength, ErrNDPOptMalformedBody) - } - - // Copy the label and add a trailing period. - for i := 0; i < labelLen; i++ { - b, err := searchList.ReadByte() - if err != nil { - if err != io.EOF { - panic(fmt.Sprintf("unexpected error when reading domain name's label: %s", err)) - } - - return fmt.Errorf("read %d out of %d bytes for a domain name's label from NDP Search List option: %w", i, labelLen, io.ErrUnexpectedEOF) - } - - // As per RFC 1035 section 2.3.1: - // 1) the label must only contain ASCII include letters, digits and - // hyphens - // 2) the first character in a label must be a letter - // 3) the last letter in a label must be a letter or digit - - if !isLetter(b) { - if i == 0 { - return fmt.Errorf("first character of a domain name's label in an NDP Search List option must be a letter, got character code = %d: %w", b, ErrNDPOptMalformedBody) - } - - if b == '-' { - if i == labelLen-1 { - return fmt.Errorf("last character of a domain name's label in an NDP Search List option must not be a hyphen (-): %w", ErrNDPOptMalformedBody) - } - } else if !isDigit(b) { - return fmt.Errorf("domain name's label in an NDP Search List option may only contain letters, digits and hyphens, got character code = %d: %w", b, ErrNDPOptMalformedBody) - } - } - - // If b is an upper case character, make it lower case. - if isUpperLetter(b) { - b = b - 'A' + 'a' - } - - if err := domainName.WriteByte(b); err != nil { - panic(fmt.Sprintf("unexpected error writing label to domain name buffer: %s", err)) - } - } - if err := domainName.WriteByte('.'); err != nil { - panic(fmt.Sprintf("unexpected error writing trailing period to domain name buffer: %s", err)) - } - } - } - - return nil -} - -func isLetter(b byte) bool { - return b >= 'a' && b <= 'z' || isUpperLetter(b) -} - -func isUpperLetter(b byte) bool { - return b >= 'A' && b <= 'Z' -} - -func isDigit(b byte) bool { - return b >= '0' && b <= '9' -} - -// As per RFC 4191 section 2.3, -// -// 2.3. Route Information Option -// -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Type | Length | Prefix Length |Resvd|Prf|Resvd| -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Route Lifetime | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Prefix (Variable Length) | -// . . -// . . -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// -// Fields: -// -// Type 24 -// -// -// Length 8-bit unsigned integer. The length of the option -// (including the Type and Length fields) in units of 8 -// octets. The Length field is 1, 2, or 3 depending on the -// Prefix Length. If Prefix Length is greater than 64, then -// Length must be 3. If Prefix Length is greater than 0, -// then Length must be 2 or 3. If Prefix Length is zero, -// then Length must be 1, 2, or 3. -const ( - ndpRouteInformationType = ndpOptionIdentifier(24) - ndpRouteInformationMaxLength = 22 - - ndpRouteInformationPrefixLengthIdx = 0 - ndpRouteInformationFlagsIdx = 1 - ndpRouteInformationPrfShift = 3 - ndpRouteInformationPrfMask = 3 << ndpRouteInformationPrfShift - ndpRouteInformationRouteLifetimeIdx = 2 - ndpRouteInformationRoutePrefixIdx = 6 -) - -// NDPRouteInformation is the NDP Router Information option, as defined by -// RFC 4191 section 2.3. -type NDPRouteInformation []byte - -func (NDPRouteInformation) kind() ndpOptionIdentifier { - return ndpRouteInformationType -} - -func (o NDPRouteInformation) length() int { - return len(o) -} - -func (o NDPRouteInformation) serializeInto(b []byte) int { - return copy(b, o) -} - -// String implements fmt.Stringer. -func (o NDPRouteInformation) String() string { - return fmt.Sprintf("%T", o) -} - -// PrefixLength returns the length of the prefix. -func (o NDPRouteInformation) PrefixLength() uint8 { - return o[ndpRouteInformationPrefixLengthIdx] -} - -// RoutePreference returns the preference of the route over other routes to the -// same destination but through a different router. -func (o NDPRouteInformation) RoutePreference() NDPRoutePreference { - return NDPRoutePreference((o[ndpRouteInformationFlagsIdx] & ndpRouteInformationPrfMask) >> ndpRouteInformationPrfShift) -} - -// RouteLifetime returns the lifetime of the route. -// -// Note, a value of 0 implies the route is now invalid and a value of -// infinity/forever is represented by NDPInfiniteLifetime. -func (o NDPRouteInformation) RouteLifetime() time.Duration { - return time.Second * time.Duration(binary.BigEndian.Uint32(o[ndpRouteInformationRouteLifetimeIdx:])) -} - -// Prefix returns the prefix of the destination subnet this route is for. -func (o NDPRouteInformation) Prefix() (tcpip.Subnet, error) { - prefixLength := int(o.PrefixLength()) - if max := IPv6AddressSize * 8; prefixLength > max { - return tcpip.Subnet{}, fmt.Errorf("got prefix length = %d, want <= %d", prefixLength, max) - } - - prefix := o[ndpRouteInformationRoutePrefixIdx:] - var addrBytes [IPv6AddressSize]byte - if n := copy(addrBytes[:], prefix); n != len(prefix) { - panic(fmt.Sprintf("got copy(addrBytes, prefix) = %d, want = %d", n, len(prefix))) - } - - return tcpip.AddressWithPrefix{ - Address: tcpip.AddrFrom16(addrBytes), - PrefixLen: prefixLength, - }.Subnet(), nil -} - -func (o NDPRouteInformation) hasError() error { - l := len(o) - if l < ndpRouteInformationRoutePrefixIdx { - return fmt.Errorf("%T too small, got = %d bytes: %w", o, l, ErrNDPOptMalformedBody) - } - - prefixLength := int(o.PrefixLength()) - if max := IPv6AddressSize * 8; prefixLength > max { - return fmt.Errorf("got prefix length = %d, want <= %d: %w", prefixLength, max, ErrNDPOptMalformedBody) - } - - // Length 8-bit unsigned integer. The length of the option - // (including the Type and Length fields) in units of 8 - // octets. The Length field is 1, 2, or 3 depending on the - // Prefix Length. If Prefix Length is greater than 64, then - // Length must be 3. If Prefix Length is greater than 0, - // then Length must be 2 or 3. If Prefix Length is zero, - // then Length must be 1, 2, or 3. - l += 2 // Add 2 bytes for the type and length bytes. - lengthField := l / lengthByteUnits - if prefixLength > 64 { - if lengthField != 3 { - return fmt.Errorf("Length field must be 3 when Prefix Length (%d) is > 64 (got = %d): %w", prefixLength, lengthField, ErrNDPOptMalformedBody) - } - } else if prefixLength > 0 { - if lengthField != 2 && lengthField != 3 { - return fmt.Errorf("Length field must be 2 or 3 when Prefix Length (%d) is between 0 and 64 (got = %d): %w", prefixLength, lengthField, ErrNDPOptMalformedBody) - } - } else if lengthField == 0 || lengthField > 3 { - return fmt.Errorf("Length field must be 1, 2, or 3 when Prefix Length is zero (got = %d): %w", lengthField, ErrNDPOptMalformedBody) - } - - return nil -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndp_router_advert.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndp_router_advert.go deleted file mode 100644 index e2456c0077..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndp_router_advert.go +++ /dev/null @@ -1,204 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "encoding/binary" - "fmt" - "time" -) - -var _ fmt.Stringer = NDPRoutePreference(0) - -// NDPRoutePreference is the preference values for default routers or -// more-specific routes. -// -// As per RFC 4191 section 2.1, -// -// Default router preferences and preferences for more-specific routes -// are encoded the same way. -// -// Preference values are encoded as a two-bit signed integer, as -// follows: -// -// 01 High -// 00 Medium (default) -// 11 Low -// 10 Reserved - MUST NOT be sent -// -// Note that implementations can treat the value as a two-bit signed -// integer. -// -// Having just three values reinforces that they are not metrics and -// more values do not appear to be necessary for reasonable scenarios. -type NDPRoutePreference uint8 - -const ( - // HighRoutePreference indicates a high preference, as per - // RFC 4191 section 2.1. - HighRoutePreference NDPRoutePreference = 0b01 - - // MediumRoutePreference indicates a medium preference, as per - // RFC 4191 section 2.1. - // - // This is the default preference value. - MediumRoutePreference = 0b00 - - // LowRoutePreference indicates a low preference, as per - // RFC 4191 section 2.1. - LowRoutePreference = 0b11 - - // ReservedRoutePreference is a reserved preference value, as per - // RFC 4191 section 2.1. - // - // It MUST NOT be sent. - ReservedRoutePreference = 0b10 -) - -// String implements fmt.Stringer. -func (p NDPRoutePreference) String() string { - switch p { - case HighRoutePreference: - return "HighRoutePreference" - case MediumRoutePreference: - return "MediumRoutePreference" - case LowRoutePreference: - return "LowRoutePreference" - case ReservedRoutePreference: - return "ReservedRoutePreference" - default: - return fmt.Sprintf("NDPRoutePreference(%d)", p) - } -} - -// NDPRouterAdvert is an NDP Router Advertisement message. It will only contain -// the body of an ICMPv6 packet. -// -// See RFC 4861 section 4.2 and RFC 4191 section 2.2 for more details. -type NDPRouterAdvert []byte - -// As per RFC 4191 section 2.2, -// -// 0 1 2 3 -// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Type | Code | Checksum | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Cur Hop Limit |M|O|H|Prf|Resvd| Router Lifetime | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Reachable Time | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Retrans Timer | -// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -// | Options ... -// +-+-+-+-+-+-+-+-+-+-+-+- -const ( - // NDPRAMinimumSize is the minimum size of a valid NDP Router - // Advertisement message (body of an ICMPv6 packet). - NDPRAMinimumSize = 12 - - // ndpRACurrHopLimitOffset is the byte of the Curr Hop Limit field - // within an NDPRouterAdvert. - ndpRACurrHopLimitOffset = 0 - - // ndpRAFlagsOffset is the byte with the NDP RA bit-fields/flags - // within an NDPRouterAdvert. - ndpRAFlagsOffset = 1 - - // ndpRAManagedAddrConfFlagMask is the mask of the Managed Address - // Configuration flag within the bit-field/flags byte of an - // NDPRouterAdvert. - ndpRAManagedAddrConfFlagMask = (1 << 7) - - // ndpRAOtherConfFlagMask is the mask of the Other Configuration flag - // within the bit-field/flags byte of an NDPRouterAdvert. - ndpRAOtherConfFlagMask = (1 << 6) - - // ndpDefaultRouterPreferenceShift is the shift of the Prf (Default Router - // Preference) field within the flags byte of an NDPRouterAdvert. - ndpDefaultRouterPreferenceShift = 3 - - // ndpDefaultRouterPreferenceMask is the mask of the Prf (Default Router - // Preference) field within the flags byte of an NDPRouterAdvert. - ndpDefaultRouterPreferenceMask = (0b11 << ndpDefaultRouterPreferenceShift) - - // ndpRARouterLifetimeOffset is the start of the 2-byte Router Lifetime - // field within an NDPRouterAdvert. - ndpRARouterLifetimeOffset = 2 - - // ndpRAReachableTimeOffset is the start of the 4-byte Reachable Time - // field within an NDPRouterAdvert. - ndpRAReachableTimeOffset = 4 - - // ndpRARetransTimerOffset is the start of the 4-byte Retrans Timer - // field within an NDPRouterAdvert. - ndpRARetransTimerOffset = 8 - - // ndpRAOptionsOffset is the start of the NDP options in an - // NDPRouterAdvert. - ndpRAOptionsOffset = 12 -) - -// CurrHopLimit returns the value of the Curr Hop Limit field. -func (b NDPRouterAdvert) CurrHopLimit() uint8 { - return b[ndpRACurrHopLimitOffset] -} - -// ManagedAddrConfFlag returns the value of the Managed Address Configuration -// flag. -func (b NDPRouterAdvert) ManagedAddrConfFlag() bool { - return b[ndpRAFlagsOffset]&ndpRAManagedAddrConfFlagMask != 0 -} - -// OtherConfFlag returns the value of the Other Configuration flag. -func (b NDPRouterAdvert) OtherConfFlag() bool { - return b[ndpRAFlagsOffset]&ndpRAOtherConfFlagMask != 0 -} - -// DefaultRouterPreference returns the Default Router Preference field. -func (b NDPRouterAdvert) DefaultRouterPreference() NDPRoutePreference { - return NDPRoutePreference((b[ndpRAFlagsOffset] & ndpDefaultRouterPreferenceMask) >> ndpDefaultRouterPreferenceShift) -} - -// RouterLifetime returns the lifetime associated with the default router. A -// value of 0 means the source of the Router Advertisement is not a default -// router and SHOULD NOT appear on the default router list. Note, a value of 0 -// only means that the router should not be used as a default router, it does -// not apply to other information contained in the Router Advertisement. -func (b NDPRouterAdvert) RouterLifetime() time.Duration { - // The field is the time in seconds, as per RFC 4861 section 4.2. - return time.Second * time.Duration(binary.BigEndian.Uint16(b[ndpRARouterLifetimeOffset:])) -} - -// ReachableTime returns the time that a node assumes a neighbor is reachable -// after having received a reachability confirmation. A value of 0 means -// that it is unspecified by the source of the Router Advertisement message. -func (b NDPRouterAdvert) ReachableTime() time.Duration { - // The field is the time in milliseconds, as per RFC 4861 section 4.2. - return time.Millisecond * time.Duration(binary.BigEndian.Uint32(b[ndpRAReachableTimeOffset:])) -} - -// RetransTimer returns the time between retransmitted Neighbor Solicitation -// messages. A value of 0 means that it is unspecified by the source of the -// Router Advertisement message. -func (b NDPRouterAdvert) RetransTimer() time.Duration { - // The field is the time in milliseconds, as per RFC 4861 section 4.2. - return time.Millisecond * time.Duration(binary.BigEndian.Uint32(b[ndpRARetransTimerOffset:])) -} - -// Options returns an NDPOptions of the options body. -func (b NDPRouterAdvert) Options() NDPOptions { - return NDPOptions(b[ndpRAOptionsOffset:]) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndp_router_solicit.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndp_router_solicit.go deleted file mode 100644 index 5ca2e5cf4b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndp_router_solicit.go +++ /dev/null @@ -1,36 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -// NDPRouterSolicit is an NDP Router Solicitation message. It will only contain -// the body of an ICMPv6 packet. -// -// See RFC 4861 section 4.1 for more details. -type NDPRouterSolicit []byte - -const ( - // NDPRSMinimumSize is the minimum size of a valid NDP Router - // Solicitation message (body of an ICMPv6 packet). - NDPRSMinimumSize = 4 - - // ndpRSOptionsOffset is the start of the NDP options in an - // NDPRouterSolicit. - ndpRSOptionsOffset = 4 -) - -// Options returns an NDPOptions of the options body. -func (b NDPRouterSolicit) Options() NDPOptions { - return NDPOptions(b[ndpRSOptionsOffset:]) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndpoptionidentifier_string.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndpoptionidentifier_string.go deleted file mode 100644 index 55ab1d7cf3..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/ndpoptionidentifier_string.go +++ /dev/null @@ -1,58 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Code generated by "stringer -type ndpOptionIdentifier"; DO NOT EDIT. - -package header - -import "strconv" - -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[ndpSourceLinkLayerAddressOptionType-1] - _ = x[ndpTargetLinkLayerAddressOptionType-2] - _ = x[ndpPrefixInformationType-3] - _ = x[ndpNonceOptionType-14] - _ = x[ndpRecursiveDNSServerOptionType-25] - _ = x[ndpDNSSearchListOptionType-31] -} - -const ( - _ndpOptionIdentifier_name_0 = "ndpSourceLinkLayerAddressOptionTypendpTargetLinkLayerAddressOptionTypendpPrefixInformationType" - _ndpOptionIdentifier_name_1 = "ndpNonceOptionType" - _ndpOptionIdentifier_name_2 = "ndpRecursiveDNSServerOptionType" - _ndpOptionIdentifier_name_3 = "ndpDNSSearchListOptionType" -) - -var ( - _ndpOptionIdentifier_index_0 = [...]uint8{0, 35, 70, 94} -) - -func (i ndpOptionIdentifier) String() string { - switch { - case 1 <= i && i <= 3: - i -= 1 - return _ndpOptionIdentifier_name_0[_ndpOptionIdentifier_index_0[i]:_ndpOptionIdentifier_index_0[i+1]] - case i == 14: - return _ndpOptionIdentifier_name_1 - case i == 25: - return _ndpOptionIdentifier_name_2 - case i == 31: - return _ndpOptionIdentifier_name_3 - default: - return "ndpOptionIdentifier(" + strconv.FormatInt(int64(i), 10) + ")" - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/parse/parse.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/parse/parse.go deleted file mode 100644 index adcfd77c72..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/parse/parse.go +++ /dev/null @@ -1,243 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package parse provides utilities to parse packets. -package parse - -import ( - "fmt" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -// ARP populates pkt's network header with an ARP header found in -// pkt.Data. -// -// Returns true if the header was successfully parsed. -func ARP(pkt *stack.PacketBuffer) bool { - _, ok := pkt.NetworkHeader().Consume(header.ARPSize) - if ok { - pkt.NetworkProtocolNumber = header.ARPProtocolNumber - } - return ok -} - -// IPv4 parses an IPv4 packet found in pkt.Data and populates pkt's network -// header with the IPv4 header. -// -// Returns true if the header was successfully parsed. -func IPv4(pkt *stack.PacketBuffer) bool { - hdr, ok := pkt.Data().PullUp(header.IPv4MinimumSize) - if !ok { - return false - } - ipHdr := header.IPv4(hdr) - - // Header may have options, determine the true header length. - headerLen := int(ipHdr.HeaderLength()) - if headerLen < header.IPv4MinimumSize { - // TODO(gvisor.dev/issue/2404): Per RFC 791, IHL needs to be at least 5 in - // order for the packet to be valid. Figure out if we want to reject this - // case. - headerLen = header.IPv4MinimumSize - } - hdr, ok = pkt.NetworkHeader().Consume(headerLen) - if !ok { - return false - } - ipHdr = header.IPv4(hdr) - length := int(ipHdr.TotalLength()) - len(hdr) - if length < 0 { - return false - } - - pkt.NetworkProtocolNumber = header.IPv4ProtocolNumber - pkt.Data().CapLength(length) - return true -} - -// IPv6 parses an IPv6 packet found in pkt.Data and populates pkt's network -// header with the IPv6 header. -func IPv6(pkt *stack.PacketBuffer) (proto tcpip.TransportProtocolNumber, fragID uint32, fragOffset uint16, fragMore bool, ok bool) { - hdr, ok := pkt.Data().PullUp(header.IPv6MinimumSize) - if !ok { - return 0, 0, 0, false, false - } - ipHdr := header.IPv6(hdr) - - // Create a VV to parse the packet. We don't plan to modify anything here. - // dataVV consists of: - // - Any IPv6 header bytes after the first 40 (i.e. extensions). - // - The transport header, if present. - // - Any other payload data. - dataBuf := pkt.Data().ToBuffer() - dataBuf.TrimFront(header.IPv6MinimumSize) - it := header.MakeIPv6PayloadIterator(header.IPv6ExtensionHeaderIdentifier(ipHdr.NextHeader()), dataBuf) - defer it.Release() - - // Iterate over the IPv6 extensions to find their length. - var nextHdr tcpip.TransportProtocolNumber - var extensionsSize int64 - -traverseExtensions: - for { - extHdr, done, err := it.Next() - if err != nil { - break - } - - // If we exhaust the extension list, the entire packet is the IPv6 header - // and (possibly) extensions. - if done { - extensionsSize = dataBuf.Size() - break - } - - switch extHdr := extHdr.(type) { - case header.IPv6FragmentExtHdr: - if extHdr.IsAtomic() { - // This fragment extension header indicates that this packet is an - // atomic fragment. An atomic fragment is a fragment that contains - // all the data required to reassemble a full packet. As per RFC 6946, - // atomic fragments must not interfere with "normal" fragmented traffic - // so we skip processing the fragment instead of feeding it through the - // reassembly process below. - continue - } - - if fragID == 0 && fragOffset == 0 && !fragMore { - fragID = extHdr.ID() - fragOffset = extHdr.FragmentOffset() - fragMore = extHdr.More() - } - rawPayload := it.AsRawHeader(true /* consume */) - extensionsSize = dataBuf.Size() - rawPayload.Buf.Size() - rawPayload.Release() - extHdr.Release() - break traverseExtensions - - case header.IPv6RawPayloadHeader: - // We've found the payload after any extensions. - extensionsSize = dataBuf.Size() - extHdr.Buf.Size() - nextHdr = tcpip.TransportProtocolNumber(extHdr.Identifier) - extHdr.Release() - break traverseExtensions - default: - extHdr.Release() - // Any other extension is a no-op, keep looping until we find the payload. - } - } - - // Put the IPv6 header with extensions in pkt.NetworkHeader(). - hdr, ok = pkt.NetworkHeader().Consume(header.IPv6MinimumSize + int(extensionsSize)) - if !ok { - panic(fmt.Sprintf("pkt.Data should have at least %d bytes, but only has %d.", header.IPv6MinimumSize+extensionsSize, pkt.Data().Size())) - } - ipHdr = header.IPv6(hdr) - pkt.Data().CapLength(int(ipHdr.PayloadLength())) - pkt.NetworkProtocolNumber = header.IPv6ProtocolNumber - - return nextHdr, fragID, fragOffset, fragMore, true -} - -// UDP parses a UDP packet found in pkt.Data and populates pkt's transport -// header with the UDP header. -// -// Returns true if the header was successfully parsed. -func UDP(pkt *stack.PacketBuffer) bool { - _, ok := pkt.TransportHeader().Consume(header.UDPMinimumSize) - pkt.TransportProtocolNumber = header.UDPProtocolNumber - return ok -} - -// TCP parses a TCP packet found in pkt.Data and populates pkt's transport -// header with the TCP header. -// -// Returns true if the header was successfully parsed. -func TCP(pkt *stack.PacketBuffer) bool { - // TCP header is variable length, peek at it first. - hdrLen := header.TCPMinimumSize - hdr, ok := pkt.Data().PullUp(hdrLen) - if !ok { - return false - } - - // If the header has options, pull those up as well. - if offset := int(header.TCP(hdr).DataOffset()); offset > header.TCPMinimumSize && offset <= pkt.Data().Size() { - // TODO(gvisor.dev/issue/2404): Figure out whether to reject this kind of - // packets. - hdrLen = offset - } - - _, ok = pkt.TransportHeader().Consume(hdrLen) - pkt.TransportProtocolNumber = header.TCPProtocolNumber - return ok -} - -// ICMPv4 populates the packet buffer's transport header with an ICMPv4 header, -// if present. -// -// Returns true if an ICMPv4 header was successfully parsed. -func ICMPv4(pkt *stack.PacketBuffer) bool { - if _, ok := pkt.TransportHeader().Consume(header.ICMPv4MinimumSize); ok { - pkt.TransportProtocolNumber = header.ICMPv4ProtocolNumber - return true - } - return false -} - -// ICMPv6 populates the packet buffer's transport header with an ICMPv4 header, -// if present. -// -// Returns true if an ICMPv6 header was successfully parsed. -func ICMPv6(pkt *stack.PacketBuffer) bool { - hdr, ok := pkt.Data().PullUp(header.ICMPv6MinimumSize) - if !ok { - return false - } - - h := header.ICMPv6(hdr) - switch h.Type() { - case header.ICMPv6RouterSolicit, - header.ICMPv6RouterAdvert, - header.ICMPv6NeighborSolicit, - header.ICMPv6NeighborAdvert, - header.ICMPv6RedirectMsg, - header.ICMPv6MulticastListenerQuery, - header.ICMPv6MulticastListenerReport, - header.ICMPv6MulticastListenerV2Report, - header.ICMPv6MulticastListenerDone: - size := pkt.Data().Size() - if _, ok := pkt.TransportHeader().Consume(size); !ok { - panic(fmt.Sprintf("expected to consume the full data of size = %d bytes into transport header", size)) - } - case header.ICMPv6DstUnreachable, - header.ICMPv6PacketTooBig, - header.ICMPv6TimeExceeded, - header.ICMPv6ParamProblem, - header.ICMPv6EchoRequest, - header.ICMPv6EchoReply: - fallthrough - default: - if _, ok := pkt.TransportHeader().Consume(header.ICMPv6MinimumSize); !ok { - // Checked above if the packet buffer holds at least the minimum size for - // an ICMPv6 packet. - panic(fmt.Sprintf("expected to consume %d bytes", header.ICMPv6MinimumSize)) - } - } - pkt.TransportProtocolNumber = header.ICMPv6ProtocolNumber - return true -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/parse/parse_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/parse/parse_state_autogen.go deleted file mode 100644 index ad047be328..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/parse/parse_state_autogen.go +++ /dev/null @@ -1,3 +0,0 @@ -// automatically generated by stateify. - -package parse diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/tcp.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/tcp.go deleted file mode 100644 index fe41e8d49d..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/tcp.go +++ /dev/null @@ -1,726 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "encoding/binary" - - "github.com/google/btree" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/checksum" - "gvisor.dev/gvisor/pkg/tcpip/seqnum" -) - -// These constants are the offsets of the respective fields in the TCP header. -const ( - TCPSrcPortOffset = 0 - TCPDstPortOffset = 2 - TCPSeqNumOffset = 4 - TCPAckNumOffset = 8 - TCPDataOffset = 12 - TCPFlagsOffset = 13 - TCPWinSizeOffset = 14 - TCPChecksumOffset = 16 - TCPUrgentPtrOffset = 18 -) - -const ( - // MaxWndScale is maximum allowed window scaling, as described in - // RFC 1323, section 2.3, page 11. - MaxWndScale = 14 - - // TCPMaxSACKBlocks is the maximum number of SACK blocks that can - // be encoded in a TCP option field. - TCPMaxSACKBlocks = 4 -) - -// TCPFlags is the dedicated type for TCP flags. -type TCPFlags uint8 - -// Intersects returns true iff there are flags common to both f and o. -func (f TCPFlags) Intersects(o TCPFlags) bool { - return f&o != 0 -} - -// Contains returns true iff all the flags in o are contained within f. -func (f TCPFlags) Contains(o TCPFlags) bool { - return f&o == o -} - -// String implements Stringer.String. -func (f TCPFlags) String() string { - flagsStr := []byte("FSRPAUEC") - for i := range flagsStr { - if f&(1<> 4) * 4 -} - -// Payload returns the data in the TCP packet. -func (b TCP) Payload() []byte { - return b[b.DataOffset():] -} - -// Flags returns the flags field of the TCP header. -func (b TCP) Flags() TCPFlags { - return TCPFlags(b[TCPFlagsOffset]) -} - -// WindowSize returns the "window size" field of the TCP header. -func (b TCP) WindowSize() uint16 { - return binary.BigEndian.Uint16(b[TCPWinSizeOffset:]) -} - -// Checksum returns the "checksum" field of the TCP header. -func (b TCP) Checksum() uint16 { - return binary.BigEndian.Uint16(b[TCPChecksumOffset:]) -} - -// UrgentPointer returns the "urgent pointer" field of the TCP header. -func (b TCP) UrgentPointer() uint16 { - return binary.BigEndian.Uint16(b[TCPUrgentPtrOffset:]) -} - -// SetSourcePort sets the "source port" field of the TCP header. -func (b TCP) SetSourcePort(port uint16) { - binary.BigEndian.PutUint16(b[TCPSrcPortOffset:], port) -} - -// SetDestinationPort sets the "destination port" field of the TCP header. -func (b TCP) SetDestinationPort(port uint16) { - binary.BigEndian.PutUint16(b[TCPDstPortOffset:], port) -} - -// SetChecksum sets the checksum field of the TCP header. -func (b TCP) SetChecksum(xsum uint16) { - checksum.Put(b[TCPChecksumOffset:], xsum) -} - -// SetDataOffset sets the data offset field of the TCP header. headerLen should -// be the length of the TCP header in bytes. -func (b TCP) SetDataOffset(headerLen uint8) { - b[TCPDataOffset] = (headerLen / 4) << 4 -} - -// SetSequenceNumber sets the sequence number field of the TCP header. -func (b TCP) SetSequenceNumber(seqNum uint32) { - binary.BigEndian.PutUint32(b[TCPSeqNumOffset:], seqNum) -} - -// SetAckNumber sets the ack number field of the TCP header. -func (b TCP) SetAckNumber(ackNum uint32) { - binary.BigEndian.PutUint32(b[TCPAckNumOffset:], ackNum) -} - -// SetFlags sets the flags field of the TCP header. -func (b TCP) SetFlags(flags uint8) { - b[TCPFlagsOffset] = flags -} - -// SetWindowSize sets the window size field of the TCP header. -func (b TCP) SetWindowSize(rcvwnd uint16) { - binary.BigEndian.PutUint16(b[TCPWinSizeOffset:], rcvwnd) -} - -// SetUrgentPointer sets the window size field of the TCP header. -func (b TCP) SetUrgentPointer(urgentPointer uint16) { - binary.BigEndian.PutUint16(b[TCPUrgentPtrOffset:], urgentPointer) -} - -// CalculateChecksum calculates the checksum of the TCP segment. -// partialChecksum is the checksum of the network-layer pseudo-header -// and the checksum of the segment data. -func (b TCP) CalculateChecksum(partialChecksum uint16) uint16 { - // Calculate the rest of the checksum. - return checksum.Checksum(b[:b.DataOffset()], partialChecksum) -} - -// IsChecksumValid returns true iff the TCP header's checksum is valid. -func (b TCP) IsChecksumValid(src, dst tcpip.Address, payloadChecksum, payloadLength uint16) bool { - xsum := PseudoHeaderChecksum(TCPProtocolNumber, src, dst, uint16(b.DataOffset())+payloadLength) - xsum = checksum.Combine(xsum, payloadChecksum) - return b.CalculateChecksum(xsum) == 0xffff -} - -// Options returns a slice that holds the unparsed TCP options in the segment. -func (b TCP) Options() []byte { - return b[TCPMinimumSize:b.DataOffset()] -} - -// ParsedOptions returns a TCPOptions structure which parses and caches the TCP -// option values in the TCP segment. NOTE: Invoking this function repeatedly is -// expensive as it reparses the options on each invocation. -func (b TCP) ParsedOptions() TCPOptions { - return ParseTCPOptions(b.Options()) -} - -func (b TCP) encodeSubset(seq, ack uint32, flags TCPFlags, rcvwnd uint16) { - binary.BigEndian.PutUint32(b[TCPSeqNumOffset:], seq) - binary.BigEndian.PutUint32(b[TCPAckNumOffset:], ack) - b[TCPFlagsOffset] = uint8(flags) - binary.BigEndian.PutUint16(b[TCPWinSizeOffset:], rcvwnd) -} - -// Encode encodes all the fields of the TCP header. -func (b TCP) Encode(t *TCPFields) { - b.encodeSubset(t.SeqNum, t.AckNum, t.Flags, t.WindowSize) - b.SetSourcePort(t.SrcPort) - b.SetDestinationPort(t.DstPort) - b.SetDataOffset(t.DataOffset) - b.SetChecksum(t.Checksum) - b.SetUrgentPointer(t.UrgentPointer) -} - -// EncodePartial updates a subset of the fields of the TCP header. It is useful -// in cases when similar segments are produced. -func (b TCP) EncodePartial(partialChecksum, length uint16, seqnum, acknum uint32, flags TCPFlags, rcvwnd uint16) { - // Add the total length and "flags" field contributions to the checksum. - // We don't use the flags field directly from the header because it's a - // one-byte field with an odd offset, so it would be accounted for - // incorrectly by the Checksum routine. - tmp := make([]byte, 4) - binary.BigEndian.PutUint16(tmp, length) - binary.BigEndian.PutUint16(tmp[2:], uint16(flags)) - xsum := checksum.Checksum(tmp, partialChecksum) - - // Encode the passed-in fields. - b.encodeSubset(seqnum, acknum, flags, rcvwnd) - - // Add the contributions of the passed-in fields to the checksum. - xsum = checksum.Checksum(b[TCPSeqNumOffset:TCPSeqNumOffset+8], xsum) - xsum = checksum.Checksum(b[TCPWinSizeOffset:TCPWinSizeOffset+2], xsum) - - // Encode the checksum. - b.SetChecksum(^xsum) -} - -// SetSourcePortWithChecksumUpdate implements ChecksummableTransport. -func (b TCP) SetSourcePortWithChecksumUpdate(new uint16) { - old := b.SourcePort() - b.SetSourcePort(new) - b.SetChecksum(^checksumUpdate2ByteAlignedUint16(^b.Checksum(), old, new)) -} - -// SetDestinationPortWithChecksumUpdate implements ChecksummableTransport. -func (b TCP) SetDestinationPortWithChecksumUpdate(new uint16) { - old := b.DestinationPort() - b.SetDestinationPort(new) - b.SetChecksum(^checksumUpdate2ByteAlignedUint16(^b.Checksum(), old, new)) -} - -// UpdateChecksumPseudoHeaderAddress implements ChecksummableTransport. -func (b TCP) UpdateChecksumPseudoHeaderAddress(old, new tcpip.Address, fullChecksum bool) { - xsum := b.Checksum() - if fullChecksum { - xsum = ^xsum - } - - xsum = checksumUpdate2ByteAlignedAddress(xsum, old, new) - if fullChecksum { - xsum = ^xsum - } - - b.SetChecksum(xsum) -} - -// ParseSynOptions parses the options received in a SYN segment and returns the -// relevant ones. opts should point to the option part of the TCP header. -func ParseSynOptions(opts []byte, isAck bool) TCPSynOptions { - limit := len(opts) - - synOpts := TCPSynOptions{ - // Per RFC 1122, page 85: "If an MSS option is not received at - // connection setup, TCP MUST assume a default send MSS of 536." - MSS: TCPDefaultMSS, - // If no window scale option is specified, WS in options is - // returned as -1; this is because the absence of the option - // indicates that the we cannot use window scaling on the - // receive end either. - WS: -1, - } - - for i := 0; i < limit; { - switch opts[i] { - case TCPOptionEOL: - i = limit - case TCPOptionNOP: - i++ - case TCPOptionMSS: - if i+4 > limit || opts[i+1] != 4 { - return synOpts - } - mss := uint16(opts[i+2])<<8 | uint16(opts[i+3]) - if mss == 0 { - return synOpts - } - synOpts.MSS = mss - if mss < TCPMinimumSendMSS { - synOpts.MSS = TCPMinimumSendMSS - } - i += 4 - - case TCPOptionWS: - if i+3 > limit || opts[i+1] != 3 { - return synOpts - } - ws := int(opts[i+2]) - if ws > MaxWndScale { - ws = MaxWndScale - } - synOpts.WS = ws - i += 3 - - case TCPOptionTS: - if i+10 > limit || opts[i+1] != 10 { - return synOpts - } - synOpts.TSVal = binary.BigEndian.Uint32(opts[i+2:]) - if isAck { - // If the segment is a SYN-ACK then store the Timestamp Echo Reply - // in the segment. - synOpts.TSEcr = binary.BigEndian.Uint32(opts[i+6:]) - } - synOpts.TS = true - i += 10 - case TCPOptionSACKPermitted: - if i+2 > limit || opts[i+1] != 2 { - return synOpts - } - synOpts.SACKPermitted = true - i += 2 - - default: - // We don't recognize this option, just skip over it. - if i+2 > limit { - return synOpts - } - l := int(opts[i+1]) - // If the length is incorrect or if l+i overflows the - // total options length then return false. - if l < 2 || i+l > limit { - return synOpts - } - i += l - } - } - - return synOpts -} - -// ParseTCPOptions extracts and stores all known options in the provided byte -// slice in a TCPOptions structure. -func ParseTCPOptions(b []byte) TCPOptions { - opts := TCPOptions{} - limit := len(b) - for i := 0; i < limit; { - switch b[i] { - case TCPOptionEOL: - i = limit - case TCPOptionNOP: - i++ - case TCPOptionTS: - if i+10 > limit || (b[i+1] != 10) { - return opts - } - opts.TS = true - opts.TSVal = binary.BigEndian.Uint32(b[i+2:]) - opts.TSEcr = binary.BigEndian.Uint32(b[i+6:]) - i += 10 - case TCPOptionSACK: - if i+2 > limit { - // Malformed SACK block, just return and stop parsing. - return opts - } - sackOptionLen := int(b[i+1]) - if i+sackOptionLen > limit || (sackOptionLen-2)%8 != 0 { - // Malformed SACK block, just return and stop parsing. - return opts - } - numBlocks := (sackOptionLen - 2) / 8 - opts.SACKBlocks = []SACKBlock{} - for j := 0; j < numBlocks; j++ { - start := binary.BigEndian.Uint32(b[i+2+j*8:]) - end := binary.BigEndian.Uint32(b[i+2+j*8+4:]) - opts.SACKBlocks = append(opts.SACKBlocks, SACKBlock{ - Start: seqnum.Value(start), - End: seqnum.Value(end), - }) - } - i += sackOptionLen - default: - // We don't recognize this option, just skip over it. - if i+2 > limit { - return opts - } - l := int(b[i+1]) - // If the length is incorrect or if l+i overflows the - // total options length then return false. - if l < 2 || i+l > limit { - return opts - } - i += l - } - } - return opts -} - -// EncodeMSSOption encodes the MSS TCP option with the provided MSS values in -// the supplied buffer. If the provided buffer is not large enough then it just -// returns without encoding anything. It returns the number of bytes written to -// the provided buffer. -func EncodeMSSOption(mss uint32, b []byte) int { - if len(b) < TCPOptionMSSLength { - return 0 - } - b[0], b[1], b[2], b[3] = TCPOptionMSS, TCPOptionMSSLength, byte(mss>>8), byte(mss) - return TCPOptionMSSLength -} - -// EncodeWSOption encodes the WS TCP option with the WS value in the -// provided buffer. If the provided buffer is not large enough then it just -// returns without encoding anything. It returns the number of bytes written to -// the provided buffer. -func EncodeWSOption(ws int, b []byte) int { - if len(b) < TCPOptionWSLength { - return 0 - } - b[0], b[1], b[2] = TCPOptionWS, TCPOptionWSLength, uint8(ws) - return int(b[1]) -} - -// EncodeTSOption encodes the provided tsVal and tsEcr values as a TCP timestamp -// option into the provided buffer. If the buffer is smaller than expected it -// just returns without encoding anything. It returns the number of bytes -// written to the provided buffer. -func EncodeTSOption(tsVal, tsEcr uint32, b []byte) int { - if len(b) < TCPOptionTSLength { - return 0 - } - b[0], b[1] = TCPOptionTS, TCPOptionTSLength - binary.BigEndian.PutUint32(b[2:], tsVal) - binary.BigEndian.PutUint32(b[6:], tsEcr) - return int(b[1]) -} - -// EncodeSACKPermittedOption encodes a SACKPermitted option into the provided -// buffer. If the buffer is smaller than required it just returns without -// encoding anything. It returns the number of bytes written to the provided -// buffer. -func EncodeSACKPermittedOption(b []byte) int { - if len(b) < TCPOptionSackPermittedLength { - return 0 - } - - b[0], b[1] = TCPOptionSACKPermitted, TCPOptionSackPermittedLength - return int(b[1]) -} - -// EncodeSACKBlocks encodes the provided SACK blocks as a TCP SACK option block -// in the provided slice. It tries to fit in as many blocks as possible based on -// number of bytes available in the provided buffer. It returns the number of -// bytes written to the provided buffer. -func EncodeSACKBlocks(sackBlocks []SACKBlock, b []byte) int { - if len(sackBlocks) == 0 { - return 0 - } - l := len(sackBlocks) - if l > TCPMaxSACKBlocks { - l = TCPMaxSACKBlocks - } - if ll := (len(b) - 2) / 8; ll < l { - l = ll - } - if l == 0 { - // There is not enough space in the provided buffer to add - // any SACK blocks. - return 0 - } - b[0] = TCPOptionSACK - b[1] = byte(l*8 + 2) - for i := 0; i < l; i++ { - binary.BigEndian.PutUint32(b[i*8+2:], uint32(sackBlocks[i].Start)) - binary.BigEndian.PutUint32(b[i*8+6:], uint32(sackBlocks[i].End)) - } - return int(b[1]) -} - -// EncodeNOP adds an explicit NOP to the option list. -func EncodeNOP(b []byte) int { - if len(b) == 0 { - return 0 - } - b[0] = TCPOptionNOP - return 1 -} - -// AddTCPOptionPadding adds the required number of TCPOptionNOP to quad align -// the option buffer. It adds padding bytes after the offset specified and -// returns the number of padding bytes added. The passed in options slice -// must have space for the padding bytes. -func AddTCPOptionPadding(options []byte, offset int) int { - paddingToAdd := -offset & 3 - // Now add any padding bytes that might be required to quad align the - // options. - for i := offset; i < offset+paddingToAdd; i++ { - options[i] = TCPOptionNOP - } - return paddingToAdd -} - -// Acceptable checks if a segment that starts at segSeq and has length segLen is -// "acceptable" for arriving in a receive window that starts at rcvNxt and ends -// before rcvAcc, according to the table on page 26 and 69 of RFC 793. -func Acceptable(segSeq seqnum.Value, segLen seqnum.Size, rcvNxt, rcvAcc seqnum.Value) bool { - if rcvNxt == rcvAcc { - return segLen == 0 && segSeq == rcvNxt - } - if segLen == 0 { - // rcvWnd is incremented by 1 because that is Linux's behavior despite the - // RFC. - return segSeq.InRange(rcvNxt, rcvAcc.Add(1)) - } - // Page 70 of RFC 793 allows packets that can be made "acceptable" by trimming - // the payload, so we'll accept any payload that overlaps the receive window. - // segSeq < rcvAcc is more correct according to RFC, however, Linux does it - // differently, it uses segSeq <= rcvAcc, we'd want to keep the same behavior - // as Linux. - return rcvNxt.LessThan(segSeq.Add(segLen)) && segSeq.LessThanEq(rcvAcc) -} - -// TCPValid returns true if the pkt has a valid TCP header. It checks whether: -// - The data offset is too small. -// - The data offset is too large. -// - The checksum is invalid. -// -// TCPValid corresponds to net/netfilter/nf_conntrack_proto_tcp.c:tcp_error. -func TCPValid(hdr TCP, payloadChecksum func() uint16, payloadSize uint16, srcAddr, dstAddr tcpip.Address, skipChecksumValidation bool) (csum uint16, csumValid, ok bool) { - if offset := int(hdr.DataOffset()); offset < TCPMinimumSize || offset > len(hdr) { - return - } - - if skipChecksumValidation { - csumValid = true - } else { - csum = hdr.Checksum() - csumValid = hdr.IsChecksumValid(srcAddr, dstAddr, payloadChecksum(), payloadSize) - } - return csum, csumValid, true -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/udp.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/udp.go deleted file mode 100644 index 036838dbb2..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/udp.go +++ /dev/null @@ -1,195 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import ( - "encoding/binary" - "math" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/checksum" -) - -const ( - udpSrcPort = 0 - udpDstPort = 2 - udpLength = 4 - udpChecksum = 6 -) - -const ( - // UDPMaximumPacketSize is the largest possible UDP packet. - UDPMaximumPacketSize = 0xffff -) - -// UDPFields contains the fields of a UDP packet. It is used to describe the -// fields of a packet that needs to be encoded. -type UDPFields struct { - // SrcPort is the "source port" field of a UDP packet. - SrcPort uint16 - - // DstPort is the "destination port" field of a UDP packet. - DstPort uint16 - - // Length is the "length" field of a UDP packet. - Length uint16 - - // Checksum is the "checksum" field of a UDP packet. - Checksum uint16 -} - -// UDP represents a UDP header stored in a byte array. -type UDP []byte - -const ( - // UDPMinimumSize is the minimum size of a valid UDP packet. - UDPMinimumSize = 8 - - // UDPMaximumSize is the maximum size of a valid UDP packet. The length field - // in the UDP header is 16 bits as per RFC 768. - UDPMaximumSize = math.MaxUint16 - - // UDPProtocolNumber is UDP's transport protocol number. - UDPProtocolNumber tcpip.TransportProtocolNumber = 17 -) - -// SourcePort returns the "source port" field of the UDP header. -func (b UDP) SourcePort() uint16 { - return binary.BigEndian.Uint16(b[udpSrcPort:]) -} - -// DestinationPort returns the "destination port" field of the UDP header. -func (b UDP) DestinationPort() uint16 { - return binary.BigEndian.Uint16(b[udpDstPort:]) -} - -// Length returns the "length" field of the UDP header. -func (b UDP) Length() uint16 { - return binary.BigEndian.Uint16(b[udpLength:]) -} - -// Payload returns the data contained in the UDP datagram. -func (b UDP) Payload() []byte { - return b[UDPMinimumSize:] -} - -// Checksum returns the "checksum" field of the UDP header. -func (b UDP) Checksum() uint16 { - return binary.BigEndian.Uint16(b[udpChecksum:]) -} - -// SetSourcePort sets the "source port" field of the UDP header. -func (b UDP) SetSourcePort(port uint16) { - binary.BigEndian.PutUint16(b[udpSrcPort:], port) -} - -// SetDestinationPort sets the "destination port" field of the UDP header. -func (b UDP) SetDestinationPort(port uint16) { - binary.BigEndian.PutUint16(b[udpDstPort:], port) -} - -// SetChecksum sets the "checksum" field of the UDP header. -func (b UDP) SetChecksum(xsum uint16) { - checksum.Put(b[udpChecksum:], xsum) -} - -// SetLength sets the "length" field of the UDP header. -func (b UDP) SetLength(length uint16) { - binary.BigEndian.PutUint16(b[udpLength:], length) -} - -// CalculateChecksum calculates the checksum of the UDP packet, given the -// checksum of the network-layer pseudo-header and the checksum of the payload. -func (b UDP) CalculateChecksum(partialChecksum uint16) uint16 { - // Calculate the rest of the checksum. - return checksum.Checksum(b[:UDPMinimumSize], partialChecksum) -} - -// IsChecksumValid returns true iff the UDP header's checksum is valid. -func (b UDP) IsChecksumValid(src, dst tcpip.Address, payloadChecksum uint16) bool { - xsum := PseudoHeaderChecksum(UDPProtocolNumber, dst, src, b.Length()) - xsum = checksum.Combine(xsum, payloadChecksum) - return b.CalculateChecksum(xsum) == 0xffff -} - -// Encode encodes all the fields of the UDP header. -func (b UDP) Encode(u *UDPFields) { - b.SetSourcePort(u.SrcPort) - b.SetDestinationPort(u.DstPort) - b.SetLength(u.Length) - b.SetChecksum(u.Checksum) -} - -// SetSourcePortWithChecksumUpdate implements ChecksummableTransport. -func (b UDP) SetSourcePortWithChecksumUpdate(new uint16) { - old := b.SourcePort() - b.SetSourcePort(new) - b.SetChecksum(^checksumUpdate2ByteAlignedUint16(^b.Checksum(), old, new)) -} - -// SetDestinationPortWithChecksumUpdate implements ChecksummableTransport. -func (b UDP) SetDestinationPortWithChecksumUpdate(new uint16) { - old := b.DestinationPort() - b.SetDestinationPort(new) - b.SetChecksum(^checksumUpdate2ByteAlignedUint16(^b.Checksum(), old, new)) -} - -// UpdateChecksumPseudoHeaderAddress implements ChecksummableTransport. -func (b UDP) UpdateChecksumPseudoHeaderAddress(old, new tcpip.Address, fullChecksum bool) { - xsum := b.Checksum() - if fullChecksum { - xsum = ^xsum - } - - xsum = checksumUpdate2ByteAlignedAddress(xsum, old, new) - if fullChecksum { - xsum = ^xsum - } - - b.SetChecksum(xsum) -} - -// UDPValid returns true if the pkt has a valid UDP header. It checks whether: -// - The length field is too small. -// - The length field is too large. -// - The checksum is invalid. -// -// UDPValid corresponds to net/netfilter/nf_conntrack_proto_udp.c:udp_error. -func UDPValid(hdr UDP, payloadChecksum func() uint16, payloadSize uint16, netProto tcpip.NetworkProtocolNumber, srcAddr, dstAddr tcpip.Address, skipChecksumValidation bool) (lengthValid, csumValid bool) { - if length := hdr.Length(); length > payloadSize+UDPMinimumSize || length < UDPMinimumSize { - return false, false - } - - if skipChecksumValidation { - return true, true - } - - // On IPv4, UDP checksum is optional, and a zero value means the transmitter - // omitted the checksum generation, as per RFC 768: - // - // An all zero transmitted checksum value means that the transmitter - // generated no checksum (for debugging or for higher level protocols that - // don't care). - // - // On IPv6, UDP checksum is not optional, as per RFC 2460 Section 8.1: - // - // Unlike IPv4, when UDP packets are originated by an IPv6 node, the UDP - // checksum is not optional. - if netProto == IPv4ProtocolNumber && hdr.Checksum() == 0 { - return true, true - } - - return true, hdr.IsChecksumValid(srcAddr, dstAddr, payloadChecksum()) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/virtionet.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/header/virtionet.go deleted file mode 100644 index e6b0c71bb5..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/header/virtionet.go +++ /dev/null @@ -1,94 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package header - -import "encoding/binary" - -// These constants are declared in linux/virtio_net.h. -const ( - _VIRTIO_NET_HDR_F_NEEDS_CSUM = 1 - _VIRTIO_NET_HDR_GSO_NONE = 0 - _VIRTIO_NET_HDR_GSO_TCPV4 = 1 - _VIRTIO_NET_HDR_GSO_TCPV6 = 4 -) - -const ( - // VirtioNetHeaderSize is the size of VirtioNetHeader in bytes. - VirtioNetHeaderSize = 10 -) - -// Offsets for fields in the virtio net header. -const ( - flags = 0 - gsoType = 1 - hdrLen = 2 - gsoSize = 4 - csumStart = 6 - csumOffset = 8 -) - -// VirtioNetHeaderFields is the Go equivalent of the struct declared in -// linux/virtio_net.h. -type VirtioNetHeaderFields struct { - Flags uint8 - GSOType uint8 - HdrLen uint16 - GSOSize uint16 - CSumStart uint16 - CSumOffset uint16 -} - -// VirtioNetHeader represents a virtio net header stored in a byte array. -type VirtioNetHeader []byte - -// Flags returns the "flags" field of the virtio net header. -func (v VirtioNetHeader) Flags() uint8 { - return uint8(v[flags]) -} - -// GSOType returns the "gsoType" field of the virtio net header. -func (v VirtioNetHeader) GSOType() uint8 { - return uint8(v[gsoType]) -} - -// HdrLen returns the "hdrLen" field of the virtio net header. -func (v VirtioNetHeader) HdrLen() uint16 { - return binary.BigEndian.Uint16(v[hdrLen:]) -} - -// GSOSize returns the "gsoSize" field of the virtio net header. -func (v VirtioNetHeader) GSOSize() uint16 { - return binary.BigEndian.Uint16(v[gsoSize:]) -} - -// CSumStart returns the "csumStart" field of the virtio net header. -func (v VirtioNetHeader) CSumStart() uint16 { - return binary.BigEndian.Uint16(v[csumStart:]) -} - -// CSumOffset returns the "csumOffset" field of the virtio net header. -func (v VirtioNetHeader) CSumOffset() uint16 { - return binary.BigEndian.Uint16(v[csumOffset:]) -} - -// Encode encodes all the fields of the virtio net header. -func (v VirtioNetHeader) Encode(f *VirtioNetHeaderFields) { - v[flags] = uint8(f.Flags) - v[gsoType] = uint8(f.GSOType) - binary.BigEndian.PutUint16(v[hdrLen:], f.HdrLen) - binary.BigEndian.PutUint16(v[gsoSize:], f.GSOSize) - binary.BigEndian.PutUint16(v[csumStart:], f.CSumStart) - binary.BigEndian.PutUint16(v[csumOffset:], f.CSumOffset) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/internal/tcp/tcp.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/internal/tcp/tcp.go deleted file mode 100644 index 0616d368c8..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/internal/tcp/tcp.go +++ /dev/null @@ -1,48 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package tcp contains internal type definitions that are not expected to be -// used by anyone else outside pkg/tcpip. -package tcp - -import ( - "time" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -// TSOffset is an offset applied to the value of the TSVal field in the TCP -// Timestamp option. -// -// +stateify savable -type TSOffset struct { - milliseconds uint32 -} - -// NewTSOffset creates a new TSOffset from milliseconds. -func NewTSOffset(milliseconds uint32) TSOffset { - return TSOffset{ - milliseconds: milliseconds, - } -} - -// TSVal applies the offset to now and returns the timestamp in milliseconds. -func (offset TSOffset) TSVal(now tcpip.MonotonicTime) uint32 { - return uint32(now.Sub(tcpip.MonotonicTime{}).Milliseconds()) + offset.milliseconds -} - -// Elapsed calculates the elapsed time given now and the echoed back timestamp. -func (offset TSOffset) Elapsed(now tcpip.MonotonicTime, tsEcr uint32) time.Duration { - return time.Duration(offset.TSVal(now)-tsEcr) * time.Millisecond -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/internal/tcp/tcp_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/internal/tcp/tcp_state_autogen.go deleted file mode 100644 index 9aa457fedb..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/internal/tcp/tcp_state_autogen.go +++ /dev/null @@ -1,38 +0,0 @@ -// automatically generated by stateify. - -package tcp - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (offset *TSOffset) StateTypeName() string { - return "pkg/tcpip/internal/tcp.TSOffset" -} - -func (offset *TSOffset) StateFields() []string { - return []string{ - "milliseconds", - } -} - -func (offset *TSOffset) beforeSave() {} - -// +checklocksignore -func (offset *TSOffset) StateSave(stateSinkObject state.Sink) { - offset.beforeSave() - stateSinkObject.Save(0, &offset.milliseconds) -} - -func (offset *TSOffset) afterLoad(context.Context) {} - -// +checklocksignore -func (offset *TSOffset) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &offset.milliseconds) -} - -func init() { - state.Register((*TSOffset)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/link/nested/nested.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/link/nested/nested.go deleted file mode 100644 index 66c95689a7..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/link/nested/nested.go +++ /dev/null @@ -1,178 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package nested provides helpers to implement the pattern of nested -// stack.LinkEndpoints. -package nested - -import ( - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -// Endpoint is a wrapper around stack.LinkEndpoint and stack.NetworkDispatcher -// that can be used to implement nesting safely by providing lifecycle -// concurrency guards. -// -// See the tests in this package for example usage. -// -// +stateify savable -type Endpoint struct { - child stack.LinkEndpoint - embedder stack.NetworkDispatcher - - // mu protects dispatcher. - mu sync.RWMutex `state:"nosave"` - dispatcher stack.NetworkDispatcher -} - -var _ stack.GSOEndpoint = (*Endpoint)(nil) -var _ stack.LinkEndpoint = (*Endpoint)(nil) -var _ stack.NetworkDispatcher = (*Endpoint)(nil) - -// Init initializes a nested.Endpoint that uses embedder as the dispatcher for -// child on Attach. -// -// See the tests in this package for example usage. -func (e *Endpoint) Init(child stack.LinkEndpoint, embedder stack.NetworkDispatcher) { - e.child = child - e.embedder = embedder -} - -// DeliverNetworkPacket implements stack.NetworkDispatcher. -func (e *Endpoint) DeliverNetworkPacket(protocol tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer) { - e.mu.RLock() - d := e.dispatcher - e.mu.RUnlock() - if d != nil { - d.DeliverNetworkPacket(protocol, pkt) - } -} - -// DeliverLinkPacket implements stack.NetworkDispatcher. -func (e *Endpoint) DeliverLinkPacket(protocol tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer) { - e.mu.RLock() - d := e.dispatcher - e.mu.RUnlock() - if d != nil { - d.DeliverLinkPacket(protocol, pkt) - } -} - -// Attach implements stack.LinkEndpoint. -func (e *Endpoint) Attach(dispatcher stack.NetworkDispatcher) { - e.mu.Lock() - e.dispatcher = dispatcher - e.mu.Unlock() - // If we're attaching to a valid dispatcher, pass embedder as the dispatcher - // to our child, otherwise detach the child by giving it a nil dispatcher. - var pass stack.NetworkDispatcher - if dispatcher != nil { - pass = e.embedder - } - e.child.Attach(pass) -} - -// IsAttached implements stack.LinkEndpoint. -func (e *Endpoint) IsAttached() bool { - e.mu.RLock() - isAttached := e.dispatcher != nil - e.mu.RUnlock() - return isAttached -} - -// MTU implements stack.LinkEndpoint. -func (e *Endpoint) MTU() uint32 { - return e.child.MTU() -} - -// SetMTU implements stack.LinkEndpoint. -func (e *Endpoint) SetMTU(mtu uint32) { - e.child.SetMTU(mtu) -} - -// Capabilities implements stack.LinkEndpoint. -func (e *Endpoint) Capabilities() stack.LinkEndpointCapabilities { - return e.child.Capabilities() -} - -// MaxHeaderLength implements stack.LinkEndpoint. -func (e *Endpoint) MaxHeaderLength() uint16 { - return e.child.MaxHeaderLength() -} - -// LinkAddress implements stack.LinkEndpoint. -func (e *Endpoint) LinkAddress() tcpip.LinkAddress { - return e.child.LinkAddress() -} - -// SetLinkAddress implements stack.LinkEndpoint.SetLinkAddress. -func (e *Endpoint) SetLinkAddress(addr tcpip.LinkAddress) { - e.mu.Lock() - defer e.mu.Unlock() - e.child.SetLinkAddress(addr) -} - -// WritePackets implements stack.LinkEndpoint. -func (e *Endpoint) WritePackets(pkts stack.PacketBufferList) (int, tcpip.Error) { - return e.child.WritePackets(pkts) -} - -// Wait implements stack.LinkEndpoint. -func (e *Endpoint) Wait() { - e.child.Wait() -} - -// GSOMaxSize implements stack.GSOEndpoint. -func (e *Endpoint) GSOMaxSize() uint32 { - if e, ok := e.child.(stack.GSOEndpoint); ok { - return e.GSOMaxSize() - } - return 0 -} - -// SupportedGSO implements stack.GSOEndpoint. -func (e *Endpoint) SupportedGSO() stack.SupportedGSO { - if e, ok := e.child.(stack.GSOEndpoint); ok { - return e.SupportedGSO() - } - return stack.GSONotSupported -} - -// ARPHardwareType implements stack.LinkEndpoint.ARPHardwareType -func (e *Endpoint) ARPHardwareType() header.ARPHardwareType { - return e.child.ARPHardwareType() -} - -// AddHeader implements stack.LinkEndpoint.AddHeader. -func (e *Endpoint) AddHeader(pkt *stack.PacketBuffer) { - e.child.AddHeader(pkt) -} - -// ParseHeader implements stack.LinkEndpoint.ParseHeader. -func (e *Endpoint) ParseHeader(pkt *stack.PacketBuffer) bool { - return e.child.ParseHeader(pkt) -} - -// Close implements stack.LinkEndpoint. -func (e *Endpoint) Close() { - e.child.Close() -} - -// SetOnCloseAction implement stack.LinkEndpoints. -func (e *Endpoint) SetOnCloseAction(action func()) { - e.child.SetOnCloseAction(action) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/link/nested/nested_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/link/nested/nested_state_autogen.go deleted file mode 100644 index f53eb8e106..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/link/nested/nested_state_autogen.go +++ /dev/null @@ -1,44 +0,0 @@ -// automatically generated by stateify. - -package nested - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (e *Endpoint) StateTypeName() string { - return "pkg/tcpip/link/nested.Endpoint" -} - -func (e *Endpoint) StateFields() []string { - return []string{ - "child", - "embedder", - "dispatcher", - } -} - -func (e *Endpoint) beforeSave() {} - -// +checklocksignore -func (e *Endpoint) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.child) - stateSinkObject.Save(1, &e.embedder) - stateSinkObject.Save(2, &e.dispatcher) -} - -func (e *Endpoint) afterLoad(context.Context) {} - -// +checklocksignore -func (e *Endpoint) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.child) - stateSourceObject.Load(1, &e.embedder) - stateSourceObject.Load(2, &e.dispatcher) -} - -func init() { - state.Register((*Endpoint)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/link/sniffer/pcap.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/link/sniffer/pcap.go deleted file mode 100644 index 491957ac8c..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/link/sniffer/pcap.go +++ /dev/null @@ -1,85 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package sniffer - -import ( - "encoding" - "encoding/binary" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -type pcapHeader struct { - // MagicNumber is the file magic number. - MagicNumber uint32 - - // VersionMajor is the major version number. - VersionMajor uint16 - - // VersionMinor is the minor version number. - VersionMinor uint16 - - // Thiszone is the GMT to local correction. - Thiszone int32 - - // Sigfigs is the accuracy of timestamps. - Sigfigs uint32 - - // Snaplen is the max length of captured packets, in octets. - Snaplen uint32 - - // Network is the data link type. - Network uint32 -} - -var _ encoding.BinaryMarshaler = (*pcapPacket)(nil) - -type pcapPacket struct { - timestamp time.Time - packet *stack.PacketBuffer - maxCaptureLen int -} - -func (p *pcapPacket) MarshalBinary() ([]byte, error) { - pkt := trimmedClone(p.packet) - defer pkt.DecRef() - packetSize := pkt.Size() - captureLen := p.maxCaptureLen - if packetSize < captureLen { - captureLen = packetSize - } - b := make([]byte, 16+captureLen) - binary.LittleEndian.PutUint32(b[0:4], uint32(p.timestamp.Unix())) - binary.LittleEndian.PutUint32(b[4:8], uint32(p.timestamp.Nanosecond()/1000)) - binary.LittleEndian.PutUint32(b[8:12], uint32(captureLen)) - binary.LittleEndian.PutUint32(b[12:16], uint32(packetSize)) - w := tcpip.SliceWriter(b[16:]) - for _, v := range pkt.AsSlices() { - if captureLen == 0 { - break - } - if len(v) > captureLen { - v = v[:captureLen] - } - n, err := w.Write(v) - if err != nil { - panic(err) - } - captureLen -= n - } - return b, nil -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/link/sniffer/sniffer.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/link/sniffer/sniffer.go deleted file mode 100644 index 583e7d899e..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/link/sniffer/sniffer.go +++ /dev/null @@ -1,403 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package sniffer provides the implementation of data-link layer endpoints that -// wrap another endpoint and logs inbound and outbound packets. -// -// Sniffer endpoints can be used in the networking stack by calling New(eID) to -// create a new endpoint, where eID is the ID of the endpoint being wrapped, -// and then passing it as an argument to Stack.CreateNIC(). -package sniffer - -import ( - "encoding/binary" - "fmt" - "io" - "time" - - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/log" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/header/parse" - "gvisor.dev/gvisor/pkg/tcpip/link/nested" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -// LogPackets is a flag used to enable or disable packet logging via the log -// package. Valid values are 0 or 1. -var LogPackets atomicbitops.Uint32 = atomicbitops.FromUint32(1) - -// LogPacketsToPCAP is a flag used to enable or disable logging packets to a -// pcap writer. Valid values are 0 or 1. A writer must have been specified when the -// sniffer was created for this flag to have effect. -var LogPacketsToPCAP atomicbitops.Uint32 = atomicbitops.FromUint32(1) - -// Endpoint is used to sniff and log network traffic. -// -// +stateify savable -type Endpoint struct { - nested.Endpoint - writer io.Writer - maxPCAPLen uint32 - logPrefix string -} - -var _ stack.GSOEndpoint = (*Endpoint)(nil) -var _ stack.LinkEndpoint = (*Endpoint)(nil) -var _ stack.NetworkDispatcher = (*Endpoint)(nil) - -// A Direction indicates whether the packing is being sent or received. -type Direction int - -const ( - // DirectionSend indicates a sent packet. - DirectionSend = iota - // DirectionRecv indicates a received packet. - DirectionRecv -) - -func (dr Direction) String() string { - switch dr { - case DirectionSend: - return "send" - case DirectionRecv: - return "recv" - default: - panic(fmt.Sprintf("invalid Direction %d", dr)) - } -} - -// New creates a new sniffer link-layer endpoint. It wraps around another -// endpoint and logs packets and they traverse the endpoint. -func New(lower stack.LinkEndpoint) *Endpoint { - return NewWithPrefix(lower, "") -} - -// NewWithPrefix creates a new sniffer link-layer endpoint. It wraps around -// another endpoint and logs packets prefixed with logPrefix as they traverse -// the endpoint. -// -// logPrefix is prepended to the log line without any separators. -// E.g. logPrefix = "NIC:en0/" will produce log lines like -// "NIC:en0/send udp [...]". -func NewWithPrefix(lower stack.LinkEndpoint, logPrefix string) *Endpoint { - sniffer := &Endpoint{logPrefix: logPrefix} - sniffer.Endpoint.Init(lower, sniffer) - return sniffer -} - -func zoneOffset() (int32, error) { - date := time.Date(0, 0, 0, 0, 0, 0, 0, time.Local) - _, offset := date.Zone() - return int32(offset), nil -} - -func writePCAPHeader(w io.Writer, maxLen uint32) error { - offset, err := zoneOffset() - if err != nil { - return err - } - return binary.Write(w, binary.LittleEndian, pcapHeader{ - // From https://wiki.wireshark.org/Development/LibpcapFileFormat - MagicNumber: 0xa1b2c3d4, - - VersionMajor: 2, - VersionMinor: 4, - Thiszone: offset, - Sigfigs: 0, - Snaplen: maxLen, - Network: 101, // LINKTYPE_RAW - }) -} - -// NewWithWriter creates a new sniffer link-layer endpoint. It wraps around -// another endpoint and logs packets as they traverse the endpoint. -// -// Each packet is written to writer in the pcap format in a single Write call -// without synchronization. A sniffer created with this function will not emit -// packets using the standard log package. -// -// snapLen is the maximum amount of a packet to be saved. Packets with a length -// less than or equal to snapLen will be saved in their entirety. Longer -// packets will be truncated to snapLen. -func NewWithWriter(lower stack.LinkEndpoint, writer io.Writer, snapLen uint32) (*Endpoint, error) { - if err := writePCAPHeader(writer, snapLen); err != nil { - return nil, err - } - sniffer := &Endpoint{ - writer: writer, - maxPCAPLen: snapLen, - } - sniffer.Endpoint.Init(lower, sniffer) - return sniffer, nil -} - -// DeliverNetworkPacket implements the stack.NetworkDispatcher interface. It is -// called by the link-layer endpoint being wrapped when a packet arrives, and -// logs the packet before forwarding to the actual dispatcher. -func (e *Endpoint) DeliverNetworkPacket(protocol tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer) { - e.DumpPacket(DirectionRecv, protocol, pkt, nil) - e.Endpoint.DeliverNetworkPacket(protocol, pkt) -} - -// DumpPacket logs a packet, depending on configuration, to stderr and/or a -// pcap file. ts is an optional timestamp for the packet. -func (e *Endpoint) DumpPacket(dir Direction, protocol tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer, ts *time.Time) { - writer := e.writer - if LogPackets.Load() == 1 { - LogPacket(e.logPrefix, dir, protocol, pkt) - } - if writer != nil && LogPacketsToPCAP.Load() == 1 { - packet := pcapPacket{ - packet: pkt, - maxCaptureLen: int(e.maxPCAPLen), - } - if ts == nil { - packet.timestamp = time.Now() - } else { - packet.timestamp = *ts - } - b, err := packet.MarshalBinary() - if err != nil { - panic(err) - } - if _, err := writer.Write(b); err != nil { - panic(err) - } - } -} - -// WritePackets implements the stack.LinkEndpoint interface. It is called by -// higher-level protocols to write packets; it just logs the packet and -// forwards the request to the lower endpoint. -func (e *Endpoint) WritePackets(pkts stack.PacketBufferList) (int, tcpip.Error) { - for _, pkt := range pkts.AsSlice() { - e.DumpPacket(DirectionSend, pkt.NetworkProtocolNumber, pkt, nil) - } - return e.Endpoint.WritePackets(pkts) -} - -// LogPacket logs a packet to stdout. -func LogPacket(prefix string, dir Direction, protocol tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer) { - // Figure out the network layer info. - var transProto uint8 - var src tcpip.Address - var dst tcpip.Address - var size uint16 - var id uint32 - var fragmentOffset uint16 - var moreFragments bool - - clone := trimmedClone(pkt) - defer clone.DecRef() - switch protocol { - case header.IPv4ProtocolNumber: - if ok := parse.IPv4(clone); !ok { - return - } - - ipv4 := header.IPv4(clone.NetworkHeader().Slice()) - fragmentOffset = ipv4.FragmentOffset() - moreFragments = ipv4.Flags()&header.IPv4FlagMoreFragments == header.IPv4FlagMoreFragments - src = ipv4.SourceAddress() - dst = ipv4.DestinationAddress() - transProto = ipv4.Protocol() - size = ipv4.TotalLength() - uint16(ipv4.HeaderLength()) - id = uint32(ipv4.ID()) - - case header.IPv6ProtocolNumber: - proto, fragID, fragOffset, fragMore, ok := parse.IPv6(clone) - if !ok { - return - } - - ipv6 := header.IPv6(clone.NetworkHeader().Slice()) - src = ipv6.SourceAddress() - dst = ipv6.DestinationAddress() - transProto = uint8(proto) - size = ipv6.PayloadLength() - id = fragID - moreFragments = fragMore - fragmentOffset = fragOffset - - case header.ARPProtocolNumber: - if !parse.ARP(clone) { - return - } - - arp := header.ARP(clone.NetworkHeader().Slice()) - log.Infof( - "%s%s arp %s (%s) -> %s (%s) valid:%t", - prefix, - dir, - tcpip.AddrFromSlice(arp.ProtocolAddressSender()), tcpip.LinkAddress(arp.HardwareAddressSender()), - tcpip.AddrFromSlice(arp.ProtocolAddressTarget()), tcpip.LinkAddress(arp.HardwareAddressTarget()), - arp.IsValid(), - ) - return - default: - log.Infof("%s%s unknown network protocol: %d", prefix, dir, protocol) - return - } - - // Figure out the transport layer info. - transName := "unknown" - srcPort := uint16(0) - dstPort := uint16(0) - details := "" - switch tcpip.TransportProtocolNumber(transProto) { - case header.ICMPv4ProtocolNumber: - transName = "icmp" - hdr, ok := clone.Data().PullUp(header.ICMPv4MinimumSize) - if !ok { - break - } - icmp := header.ICMPv4(hdr) - icmpType := "unknown" - if fragmentOffset == 0 { - switch icmp.Type() { - case header.ICMPv4EchoReply: - icmpType = "echo reply" - case header.ICMPv4DstUnreachable: - icmpType = "destination unreachable" - case header.ICMPv4SrcQuench: - icmpType = "source quench" - case header.ICMPv4Redirect: - icmpType = "redirect" - case header.ICMPv4Echo: - icmpType = "echo" - case header.ICMPv4TimeExceeded: - icmpType = "time exceeded" - case header.ICMPv4ParamProblem: - icmpType = "param problem" - case header.ICMPv4Timestamp: - icmpType = "timestamp" - case header.ICMPv4TimestampReply: - icmpType = "timestamp reply" - case header.ICMPv4InfoRequest: - icmpType = "info request" - case header.ICMPv4InfoReply: - icmpType = "info reply" - } - } - log.Infof("%s%s %s %s -> %s %s len:%d id:%04x code:%d", prefix, dir, transName, src, dst, icmpType, size, id, icmp.Code()) - return - - case header.ICMPv6ProtocolNumber: - transName = "icmp" - hdr, ok := clone.Data().PullUp(header.ICMPv6MinimumSize) - if !ok { - break - } - icmp := header.ICMPv6(hdr) - icmpType := "unknown" - switch icmp.Type() { - case header.ICMPv6DstUnreachable: - icmpType = "destination unreachable" - case header.ICMPv6PacketTooBig: - icmpType = "packet too big" - case header.ICMPv6TimeExceeded: - icmpType = "time exceeded" - case header.ICMPv6ParamProblem: - icmpType = "param problem" - case header.ICMPv6EchoRequest: - icmpType = "echo request" - case header.ICMPv6EchoReply: - icmpType = "echo reply" - case header.ICMPv6RouterSolicit: - icmpType = "router solicit" - case header.ICMPv6RouterAdvert: - icmpType = "router advert" - case header.ICMPv6NeighborSolicit: - icmpType = "neighbor solicit" - case header.ICMPv6NeighborAdvert: - icmpType = "neighbor advert" - case header.ICMPv6RedirectMsg: - icmpType = "redirect message" - } - log.Infof("%s%s %s %s -> %s %s len:%d id:%04x code:%d", prefix, dir, transName, src, dst, icmpType, size, id, icmp.Code()) - return - - case header.UDPProtocolNumber: - transName = "udp" - if ok := parse.UDP(clone); !ok { - break - } - - udp := header.UDP(clone.TransportHeader().Slice()) - if fragmentOffset == 0 { - srcPort = udp.SourcePort() - dstPort = udp.DestinationPort() - details = fmt.Sprintf("xsum: 0x%x", udp.Checksum()) - size -= header.UDPMinimumSize - } - - case header.TCPProtocolNumber: - transName = "tcp" - if ok := parse.TCP(clone); !ok { - break - } - - tcp := header.TCP(clone.TransportHeader().Slice()) - if fragmentOffset == 0 { - offset := int(tcp.DataOffset()) - if offset < header.TCPMinimumSize { - details += fmt.Sprintf("invalid packet: tcp data offset too small %d", offset) - break - } - if size := clone.Data().Size() + len(tcp); offset > size && !moreFragments { - details += fmt.Sprintf("invalid packet: tcp data offset %d larger than tcp packet length %d", offset, size) - break - } - - srcPort = tcp.SourcePort() - dstPort = tcp.DestinationPort() - size -= uint16(offset) - - // Initialize the TCP flags. - flags := tcp.Flags() - details = fmt.Sprintf("flags:%s seqnum:%d ack:%d win:%d xsum:0x%x", flags, tcp.SequenceNumber(), tcp.AckNumber(), tcp.WindowSize(), tcp.Checksum()) - if flags&header.TCPFlagSyn != 0 { - details += fmt.Sprintf(" options:%+v", header.ParseSynOptions(tcp.Options(), flags&header.TCPFlagAck != 0)) - } else { - details += fmt.Sprintf(" options:%+v", tcp.ParsedOptions()) - } - } - - default: - log.Infof("%s%s %s -> %s unknown transport protocol: %d", prefix, dir, src, dst, transProto) - return - } - - if pkt.GSOOptions.Type != stack.GSONone { - details += fmt.Sprintf(" gso:%#v", pkt.GSOOptions) - } - - log.Infof("%s%s %s %s:%d -> %s:%d len:%d id:0x%04x %s", prefix, dir, transName, src, srcPort, dst, dstPort, size, id, details) -} - -// trimmedClone clones the packet buffer to not modify the original. It trims -// anything before the network header. -func trimmedClone(pkt *stack.PacketBuffer) *stack.PacketBuffer { - // We don't clone the original packet buffer so that the new packet buffer - // does not have any of its headers set. - // - // We trim the link headers from the cloned buffer as the sniffer doesn't - // handle link headers. - buf := pkt.ToBuffer() - buf.TrimFront(int64(len(pkt.VirtioNetHeader().Slice()))) - buf.TrimFront(int64(len(pkt.LinkHeader().Slice()))) - return stack.NewPacketBuffer(stack.PacketBufferOptions{Payload: buf}) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/link/sniffer/sniffer_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/link/sniffer/sniffer_state_autogen.go deleted file mode 100644 index ed843f12b4..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/link/sniffer/sniffer_state_autogen.go +++ /dev/null @@ -1,47 +0,0 @@ -// automatically generated by stateify. - -package sniffer - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (e *Endpoint) StateTypeName() string { - return "pkg/tcpip/link/sniffer.Endpoint" -} - -func (e *Endpoint) StateFields() []string { - return []string{ - "Endpoint", - "writer", - "maxPCAPLen", - "logPrefix", - } -} - -func (e *Endpoint) beforeSave() {} - -// +checklocksignore -func (e *Endpoint) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.Endpoint) - stateSinkObject.Save(1, &e.writer) - stateSinkObject.Save(2, &e.maxPCAPLen) - stateSinkObject.Save(3, &e.logPrefix) -} - -func (e *Endpoint) afterLoad(context.Context) {} - -// +checklocksignore -func (e *Endpoint) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.Endpoint) - stateSourceObject.Load(1, &e.writer) - stateSourceObject.Load(2, &e.maxPCAPLen) - stateSourceObject.Load(3, &e.logPrefix) -} - -func init() { - state.Register((*Endpoint)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/arp/arp.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/arp/arp.go deleted file mode 100644 index e05f188990..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/arp/arp.go +++ /dev/null @@ -1,414 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package arp implements the ARP network protocol. It is used to resolve -// IPv4 addresses into link-local MAC addresses, and advertises IPv4 -// addresses of its stack with the local network. -package arp - -import ( - "fmt" - "reflect" - - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/header/parse" - "gvisor.dev/gvisor/pkg/tcpip/network/internal/ip" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -const ( - // ProtocolNumber is the ARP protocol number. - ProtocolNumber = header.ARPProtocolNumber -) - -var _ stack.DuplicateAddressDetector = (*endpoint)(nil) -var _ stack.LinkAddressResolver = (*endpoint)(nil) -var _ ip.DADProtocol = (*endpoint)(nil) - -// ARP endpoints need to implement stack.NetworkEndpoint because the stack -// considers the layer above the link-layer a network layer; the only -// facility provided by the stack to deliver packets to a layer above -// the link-layer is via stack.NetworkEndpoint.HandlePacket. -var _ stack.NetworkEndpoint = (*endpoint)(nil) - -// +stateify savable -type endpoint struct { - protocol *protocol - - // enabled is set to 1 when the NIC is enabled and 0 when it is disabled. - enabled atomicbitops.Uint32 - - nic stack.NetworkInterface - stats sharedStats - - // mu protects annotated fields below. - mu sync.Mutex `state:"nosave"` - - // +checklocks:mu - dad ip.DAD -} - -// CheckDuplicateAddress implements stack.DuplicateAddressDetector. -func (e *endpoint) CheckDuplicateAddress(addr tcpip.Address, h stack.DADCompletionHandler) stack.DADCheckAddressDisposition { - e.mu.Lock() - defer e.mu.Unlock() - return e.dad.CheckDuplicateAddressLocked(addr, h) -} - -// SetDADConfigurations implements stack.DuplicateAddressDetector. -func (e *endpoint) SetDADConfigurations(c stack.DADConfigurations) { - e.mu.Lock() - defer e.mu.Unlock() - e.dad.SetConfigsLocked(c) -} - -// DuplicateAddressProtocol implements stack.DuplicateAddressDetector. -func (*endpoint) DuplicateAddressProtocol() tcpip.NetworkProtocolNumber { - return header.IPv4ProtocolNumber -} - -// SendDADMessage implements ip.DADProtocol. -func (e *endpoint) SendDADMessage(addr tcpip.Address, _ []byte) tcpip.Error { - return e.sendARPRequest(header.IPv4Any, addr, header.EthernetBroadcastAddress) -} - -func (e *endpoint) Enable() tcpip.Error { - if !e.nic.Enabled() { - return &tcpip.ErrNotPermitted{} - } - - e.setEnabled(true) - return nil -} - -func (e *endpoint) Enabled() bool { - return e.nic.Enabled() && e.isEnabled() -} - -// isEnabled returns true if the endpoint is enabled, regardless of the -// enabled status of the NIC. -func (e *endpoint) isEnabled() bool { - return e.enabled.Load() == 1 -} - -// setEnabled sets the enabled status for the endpoint. -func (e *endpoint) setEnabled(v bool) { - if v { - e.enabled.Store(1) - } else { - e.enabled.Store(0) - } -} - -func (e *endpoint) Disable() { - e.setEnabled(false) -} - -// DefaultTTL is unused for ARP. It implements stack.NetworkEndpoint. -func (*endpoint) DefaultTTL() uint8 { - return 0 -} - -func (e *endpoint) MTU() uint32 { - lmtu := e.nic.MTU() - return lmtu - uint32(e.MaxHeaderLength()) -} - -func (e *endpoint) MaxHeaderLength() uint16 { - return e.nic.MaxHeaderLength() + header.ARPSize -} - -func (*endpoint) Close() {} - -func (*endpoint) WritePacket(*stack.Route, stack.NetworkHeaderParams, *stack.PacketBuffer) tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -// NetworkProtocolNumber implements stack.NetworkEndpoint.NetworkProtocolNumber. -func (*endpoint) NetworkProtocolNumber() tcpip.NetworkProtocolNumber { - return ProtocolNumber -} - -func (*endpoint) WriteHeaderIncludedPacket(*stack.Route, *stack.PacketBuffer) tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -func (e *endpoint) HandlePacket(pkt *stack.PacketBuffer) { - stats := e.stats.arp - stats.packetsReceived.Increment() - - if !e.isEnabled() { - stats.disabledPacketsReceived.Increment() - return - } - - if _, _, ok := e.protocol.Parse(pkt); !ok { - stats.malformedPacketsReceived.Increment() - return - } - - h := header.ARP(pkt.NetworkHeader().Slice()) - if !h.IsValid() { - stats.malformedPacketsReceived.Increment() - return - } - - switch h.Op() { - case header.ARPRequest: - stats.requestsReceived.Increment() - localAddr := tcpip.AddrFrom4Slice(h.ProtocolAddressTarget()) - - if !e.nic.CheckLocalAddress(header.IPv4ProtocolNumber, localAddr) { - stats.requestsReceivedUnknownTargetAddress.Increment() - return // we have no useful answer, ignore the request - } - - remoteAddr := tcpip.AddrFrom4Slice(h.ProtocolAddressSender()) - remoteLinkAddr := tcpip.LinkAddress(h.HardwareAddressSender()) - - switch err := e.nic.HandleNeighborProbe(header.IPv4ProtocolNumber, remoteAddr, remoteLinkAddr); err.(type) { - case nil: - case *tcpip.ErrNotSupported: - // The stack may support ARP but the NIC may not need link resolution. - default: - panic(fmt.Sprintf("unexpected error when informing NIC of neighbor probe message: %s", err)) - } - - respPkt := stack.NewPacketBuffer(stack.PacketBufferOptions{ - ReserveHeaderBytes: int(e.nic.MaxHeaderLength()) + header.ARPSize, - }) - defer respPkt.DecRef() - packet := header.ARP(respPkt.NetworkHeader().Push(header.ARPSize)) - respPkt.NetworkProtocolNumber = ProtocolNumber - packet.SetIPv4OverEthernet() - packet.SetOp(header.ARPReply) - // TODO(gvisor.dev/issue/4582): check copied length once TAP devices have a - // link address. - _ = copy(packet.HardwareAddressSender(), e.nic.LinkAddress()) - if n := copy(packet.ProtocolAddressSender(), h.ProtocolAddressTarget()); n != header.IPv4AddressSize { - panic(fmt.Sprintf("copied %d bytes, expected %d bytes", n, header.IPv4AddressSize)) - } - origSender := h.HardwareAddressSender() - if n := copy(packet.HardwareAddressTarget(), origSender); n != header.EthernetAddressSize { - panic(fmt.Sprintf("copied %d bytes, expected %d bytes", n, header.EthernetAddressSize)) - } - if n := copy(packet.ProtocolAddressTarget(), h.ProtocolAddressSender()); n != header.IPv4AddressSize { - panic(fmt.Sprintf("copied %d bytes, expected %d bytes", n, header.IPv4AddressSize)) - } - - // As per RFC 826, under Packet Reception: - // Swap hardware and protocol fields, putting the local hardware and - // protocol addresses in the sender fields. - // - // Send the packet to the (new) target hardware address on the same - // hardware on which the request was received. - if err := e.nic.WritePacketToRemote(tcpip.LinkAddress(origSender), respPkt); err != nil { - stats.outgoingRepliesDropped.Increment() - } else { - stats.outgoingRepliesSent.Increment() - } - - case header.ARPReply: - stats.repliesReceived.Increment() - addr := tcpip.AddrFrom4Slice(h.ProtocolAddressSender()) - linkAddr := tcpip.LinkAddress(h.HardwareAddressSender()) - - e.mu.Lock() - e.dad.StopLocked(addr, &stack.DADDupAddrDetected{HolderLinkAddress: linkAddr}) - e.mu.Unlock() - - switch err := e.nic.HandleNeighborConfirmation(header.IPv4ProtocolNumber, addr, linkAddr, stack.ReachabilityConfirmationFlags{ - // Only unicast ARP replies are considered solicited. Broadcast replies - // are gratuitous ARP replies and should not move neighbor entries to the - // reachable state. - Solicited: pkt.PktType == tcpip.PacketHost, - // If a different link address is received than the one cached, the entry - // should always go to Stale. - Override: false, - // ARP does not distinguish between router and non-router hosts. - IsRouter: false, - }); err.(type) { - case nil: - case *tcpip.ErrNotSupported: - // The stack may support ARP but the NIC may not need link resolution. - default: - panic(fmt.Sprintf("unexpected error when informing NIC of neighbor confirmation message: %s", err)) - } - } -} - -// Stats implements stack.NetworkEndpoint. -func (e *endpoint) Stats() stack.NetworkEndpointStats { - return &e.stats.localStats -} - -var _ stack.NetworkProtocol = (*protocol)(nil) - -// +stateify savable -type protocol struct { - stack *stack.Stack - options Options -} - -func (p *protocol) Number() tcpip.NetworkProtocolNumber { return ProtocolNumber } -func (p *protocol) MinimumPacketSize() int { return header.ARPSize } - -func (*protocol) ParseAddresses([]byte) (src, dst tcpip.Address) { - return tcpip.Address{}, tcpip.Address{} -} - -func (p *protocol) NewEndpoint(nic stack.NetworkInterface, _ stack.TransportDispatcher) stack.NetworkEndpoint { - e := &endpoint{ - protocol: p, - nic: nic, - } - - e.mu.Lock() - e.dad.Init(&e.mu, p.options.DADConfigs, ip.DADOptions{ - Clock: p.stack.Clock(), - SecureRNG: p.stack.SecureRNG().Reader, - // ARP does not support sending nonce values. - NonceSize: 0, - Protocol: e, - NICID: nic.ID(), - }) - e.mu.Unlock() - - tcpip.InitStatCounters(reflect.ValueOf(&e.stats.localStats).Elem()) - - stackStats := p.stack.Stats() - e.stats.arp.init(&e.stats.localStats.ARP, &stackStats.ARP) - - return e -} - -// LinkAddressProtocol implements stack.LinkAddressResolver.LinkAddressProtocol. -func (*endpoint) LinkAddressProtocol() tcpip.NetworkProtocolNumber { - return header.IPv4ProtocolNumber -} - -// LinkAddressRequest implements stack.LinkAddressResolver.LinkAddressRequest. -func (e *endpoint) LinkAddressRequest(targetAddr, localAddr tcpip.Address, remoteLinkAddr tcpip.LinkAddress) tcpip.Error { - stats := e.stats.arp - - if len(remoteLinkAddr) == 0 { - remoteLinkAddr = header.EthernetBroadcastAddress - } - - if localAddr.BitLen() == 0 { - addr, err := e.nic.PrimaryAddress(header.IPv4ProtocolNumber) - if err != nil { - return err - } - - if addr.Address.BitLen() == 0 { - stats.outgoingRequestInterfaceHasNoLocalAddressErrors.Increment() - return &tcpip.ErrNetworkUnreachable{} - } - - localAddr = addr.Address - } else if !e.nic.CheckLocalAddress(header.IPv4ProtocolNumber, localAddr) { - stats.outgoingRequestBadLocalAddressErrors.Increment() - return &tcpip.ErrBadLocalAddress{} - } - - return e.sendARPRequest(localAddr, targetAddr, remoteLinkAddr) -} - -func (e *endpoint) sendARPRequest(localAddr, targetAddr tcpip.Address, remoteLinkAddr tcpip.LinkAddress) tcpip.Error { - pkt := stack.NewPacketBuffer(stack.PacketBufferOptions{ - ReserveHeaderBytes: int(e.MaxHeaderLength()), - }) - defer pkt.DecRef() - h := header.ARP(pkt.NetworkHeader().Push(header.ARPSize)) - pkt.NetworkProtocolNumber = ProtocolNumber - h.SetIPv4OverEthernet() - h.SetOp(header.ARPRequest) - // TODO(gvisor.dev/issue/4582): check copied length once TAP devices have a - // link address. - _ = copy(h.HardwareAddressSender(), e.nic.LinkAddress()) - if n := copy(h.ProtocolAddressSender(), localAddr.AsSlice()); n != header.IPv4AddressSize { - panic(fmt.Sprintf("copied %d bytes, expected %d bytes", n, header.IPv4AddressSize)) - } - if n := copy(h.ProtocolAddressTarget(), targetAddr.AsSlice()); n != header.IPv4AddressSize { - panic(fmt.Sprintf("copied %d bytes, expected %d bytes", n, header.IPv4AddressSize)) - } - - stats := e.stats.arp - if err := e.nic.WritePacketToRemote(remoteLinkAddr, pkt); err != nil { - stats.outgoingRequestsDropped.Increment() - return err - } - stats.outgoingRequestsSent.Increment() - return nil -} - -// ResolveStaticAddress implements stack.LinkAddressResolver.ResolveStaticAddress. -func (*endpoint) ResolveStaticAddress(addr tcpip.Address) (tcpip.LinkAddress, bool) { - if addr == header.IPv4Broadcast { - return header.EthernetBroadcastAddress, true - } - if header.IsV4MulticastAddress(addr) { - return header.EthernetAddressFromMulticastIPv4Address(addr), true - } - return tcpip.LinkAddress([]byte(nil)), false -} - -// SetOption implements stack.NetworkProtocol.SetOption. -func (*protocol) SetOption(tcpip.SettableNetworkProtocolOption) tcpip.Error { - return &tcpip.ErrUnknownProtocolOption{} -} - -// Option implements stack.NetworkProtocol.Option. -func (*protocol) Option(tcpip.GettableNetworkProtocolOption) tcpip.Error { - return &tcpip.ErrUnknownProtocolOption{} -} - -// Close implements stack.TransportProtocol.Close. -func (*protocol) Close() {} - -// Wait implements stack.TransportProtocol.Wait. -func (*protocol) Wait() {} - -// Parse implements stack.NetworkProtocol.Parse. -func (*protocol) Parse(pkt *stack.PacketBuffer) (proto tcpip.TransportProtocolNumber, hasTransportHdr bool, ok bool) { - return 0, false, parse.ARP(pkt) -} - -// Options holds options to configure a protocol. -// -// +stateify savable -type Options struct { - // DADConfigs is the default DAD configurations used by ARP endpoints. - DADConfigs stack.DADConfigurations -} - -// NewProtocolWithOptions returns an ARP network protocol factory that -// will return an ARP network protocol with the provided options. -func NewProtocolWithOptions(opts Options) stack.NetworkProtocolFactory { - return func(s *stack.Stack) stack.NetworkProtocol { - return &protocol{ - stack: s, - options: opts, - } - } -} - -// NewProtocol returns an ARP network protocol. -func NewProtocol(s *stack.Stack) stack.NetworkProtocol { - return NewProtocolWithOptions(Options{})(s) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/arp/arp_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/arp/arp_state_autogen.go deleted file mode 100644 index 69ace2ea61..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/arp/arp_state_autogen.go +++ /dev/null @@ -1,219 +0,0 @@ -// automatically generated by stateify. - -package arp - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (e *endpoint) StateTypeName() string { - return "pkg/tcpip/network/arp.endpoint" -} - -func (e *endpoint) StateFields() []string { - return []string{ - "protocol", - "enabled", - "nic", - "stats", - "dad", - } -} - -func (e *endpoint) beforeSave() {} - -// +checklocksignore -func (e *endpoint) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.protocol) - stateSinkObject.Save(1, &e.enabled) - stateSinkObject.Save(2, &e.nic) - stateSinkObject.Save(3, &e.stats) - stateSinkObject.Save(4, &e.dad) -} - -func (e *endpoint) afterLoad(context.Context) {} - -// +checklocksignore -func (e *endpoint) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.protocol) - stateSourceObject.Load(1, &e.enabled) - stateSourceObject.Load(2, &e.nic) - stateSourceObject.Load(3, &e.stats) - stateSourceObject.Load(4, &e.dad) -} - -func (p *protocol) StateTypeName() string { - return "pkg/tcpip/network/arp.protocol" -} - -func (p *protocol) StateFields() []string { - return []string{ - "stack", - "options", - } -} - -func (p *protocol) beforeSave() {} - -// +checklocksignore -func (p *protocol) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - stateSinkObject.Save(0, &p.stack) - stateSinkObject.Save(1, &p.options) -} - -func (p *protocol) afterLoad(context.Context) {} - -// +checklocksignore -func (p *protocol) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.stack) - stateSourceObject.Load(1, &p.options) -} - -func (o *Options) StateTypeName() string { - return "pkg/tcpip/network/arp.Options" -} - -func (o *Options) StateFields() []string { - return []string{ - "DADConfigs", - } -} - -func (o *Options) beforeSave() {} - -// +checklocksignore -func (o *Options) StateSave(stateSinkObject state.Sink) { - o.beforeSave() - stateSinkObject.Save(0, &o.DADConfigs) -} - -func (o *Options) afterLoad(context.Context) {} - -// +checklocksignore -func (o *Options) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &o.DADConfigs) -} - -func (s *Stats) StateTypeName() string { - return "pkg/tcpip/network/arp.Stats" -} - -func (s *Stats) StateFields() []string { - return []string{ - "ARP", - } -} - -func (s *Stats) beforeSave() {} - -// +checklocksignore -func (s *Stats) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.ARP) -} - -func (s *Stats) afterLoad(context.Context) {} - -// +checklocksignore -func (s *Stats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.ARP) -} - -func (s *sharedStats) StateTypeName() string { - return "pkg/tcpip/network/arp.sharedStats" -} - -func (s *sharedStats) StateFields() []string { - return []string{ - "localStats", - "arp", - } -} - -func (s *sharedStats) beforeSave() {} - -// +checklocksignore -func (s *sharedStats) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.localStats) - stateSinkObject.Save(1, &s.arp) -} - -func (s *sharedStats) afterLoad(context.Context) {} - -// +checklocksignore -func (s *sharedStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.localStats) - stateSourceObject.Load(1, &s.arp) -} - -func (m *multiCounterARPStats) StateTypeName() string { - return "pkg/tcpip/network/arp.multiCounterARPStats" -} - -func (m *multiCounterARPStats) StateFields() []string { - return []string{ - "packetsReceived", - "disabledPacketsReceived", - "malformedPacketsReceived", - "requestsReceived", - "requestsReceivedUnknownTargetAddress", - "outgoingRequestInterfaceHasNoLocalAddressErrors", - "outgoingRequestBadLocalAddressErrors", - "outgoingRequestsDropped", - "outgoingRequestsSent", - "repliesReceived", - "outgoingRepliesDropped", - "outgoingRepliesSent", - } -} - -func (m *multiCounterARPStats) beforeSave() {} - -// +checklocksignore -func (m *multiCounterARPStats) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.packetsReceived) - stateSinkObject.Save(1, &m.disabledPacketsReceived) - stateSinkObject.Save(2, &m.malformedPacketsReceived) - stateSinkObject.Save(3, &m.requestsReceived) - stateSinkObject.Save(4, &m.requestsReceivedUnknownTargetAddress) - stateSinkObject.Save(5, &m.outgoingRequestInterfaceHasNoLocalAddressErrors) - stateSinkObject.Save(6, &m.outgoingRequestBadLocalAddressErrors) - stateSinkObject.Save(7, &m.outgoingRequestsDropped) - stateSinkObject.Save(8, &m.outgoingRequestsSent) - stateSinkObject.Save(9, &m.repliesReceived) - stateSinkObject.Save(10, &m.outgoingRepliesDropped) - stateSinkObject.Save(11, &m.outgoingRepliesSent) -} - -func (m *multiCounterARPStats) afterLoad(context.Context) {} - -// +checklocksignore -func (m *multiCounterARPStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.packetsReceived) - stateSourceObject.Load(1, &m.disabledPacketsReceived) - stateSourceObject.Load(2, &m.malformedPacketsReceived) - stateSourceObject.Load(3, &m.requestsReceived) - stateSourceObject.Load(4, &m.requestsReceivedUnknownTargetAddress) - stateSourceObject.Load(5, &m.outgoingRequestInterfaceHasNoLocalAddressErrors) - stateSourceObject.Load(6, &m.outgoingRequestBadLocalAddressErrors) - stateSourceObject.Load(7, &m.outgoingRequestsDropped) - stateSourceObject.Load(8, &m.outgoingRequestsSent) - stateSourceObject.Load(9, &m.repliesReceived) - stateSourceObject.Load(10, &m.outgoingRepliesDropped) - stateSourceObject.Load(11, &m.outgoingRepliesSent) -} - -func init() { - state.Register((*endpoint)(nil)) - state.Register((*protocol)(nil)) - state.Register((*Options)(nil)) - state.Register((*Stats)(nil)) - state.Register((*sharedStats)(nil)) - state.Register((*multiCounterARPStats)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/arp/stats.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/arp/stats.go deleted file mode 100644 index f49742178e..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/arp/stats.go +++ /dev/null @@ -1,74 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package arp - -import ( - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -var _ stack.NetworkEndpointStats = (*Stats)(nil) - -// Stats holds statistics related to ARP. -// -// +stateify savable -type Stats struct { - // ARP holds ARP statistics. - ARP tcpip.ARPStats -} - -// IsNetworkEndpointStats implements stack.NetworkEndpointStats. -func (*Stats) IsNetworkEndpointStats() {} - -// +stateify savable -type sharedStats struct { - localStats Stats - arp multiCounterARPStats -} - -// LINT.IfChange(multiCounterARPStats) - -// +stateify savable -type multiCounterARPStats struct { - packetsReceived tcpip.MultiCounterStat - disabledPacketsReceived tcpip.MultiCounterStat - malformedPacketsReceived tcpip.MultiCounterStat - requestsReceived tcpip.MultiCounterStat - requestsReceivedUnknownTargetAddress tcpip.MultiCounterStat - outgoingRequestInterfaceHasNoLocalAddressErrors tcpip.MultiCounterStat - outgoingRequestBadLocalAddressErrors tcpip.MultiCounterStat - outgoingRequestsDropped tcpip.MultiCounterStat - outgoingRequestsSent tcpip.MultiCounterStat - repliesReceived tcpip.MultiCounterStat - outgoingRepliesDropped tcpip.MultiCounterStat - outgoingRepliesSent tcpip.MultiCounterStat -} - -func (m *multiCounterARPStats) init(a, b *tcpip.ARPStats) { - m.packetsReceived.Init(a.PacketsReceived, b.PacketsReceived) - m.disabledPacketsReceived.Init(a.DisabledPacketsReceived, b.DisabledPacketsReceived) - m.malformedPacketsReceived.Init(a.MalformedPacketsReceived, b.MalformedPacketsReceived) - m.requestsReceived.Init(a.RequestsReceived, b.RequestsReceived) - m.requestsReceivedUnknownTargetAddress.Init(a.RequestsReceivedUnknownTargetAddress, b.RequestsReceivedUnknownTargetAddress) - m.outgoingRequestInterfaceHasNoLocalAddressErrors.Init(a.OutgoingRequestInterfaceHasNoLocalAddressErrors, b.OutgoingRequestInterfaceHasNoLocalAddressErrors) - m.outgoingRequestBadLocalAddressErrors.Init(a.OutgoingRequestBadLocalAddressErrors, b.OutgoingRequestBadLocalAddressErrors) - m.outgoingRequestsDropped.Init(a.OutgoingRequestsDropped, b.OutgoingRequestsDropped) - m.outgoingRequestsSent.Init(a.OutgoingRequestsSent, b.OutgoingRequestsSent) - m.repliesReceived.Init(a.RepliesReceived, b.RepliesReceived) - m.outgoingRepliesDropped.Init(a.OutgoingRepliesDropped, b.OutgoingRepliesDropped) - m.outgoingRepliesSent.Init(a.OutgoingRepliesSent, b.OutgoingRepliesSent) -} - -// LINT.ThenChange(../../tcpip.go:ARPStats) diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/hash/hash.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/hash/hash.go deleted file mode 100644 index ff80187a6a..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/hash/hash.go +++ /dev/null @@ -1,93 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package hash contains utility functions for hashing. -package hash - -import ( - "encoding/binary" - - "gvisor.dev/gvisor/pkg/rand" - "gvisor.dev/gvisor/pkg/tcpip/header" -) - -var hashIV = RandN32(1)[0] - -// RandN32 generates a slice of n cryptographic random 32-bit numbers. -func RandN32(n int) []uint32 { - b := make([]byte, 4*n) - if _, err := rand.Read(b); err != nil { - panic("unable to get random numbers: " + err.Error()) - } - r := make([]uint32, n) - for i := range r { - r[i] = binary.LittleEndian.Uint32(b[4*i : (4*i + 4)]) - } - return r -} - -// Hash3Words calculates the Jenkins hash of 3 32-bit words. This is adapted -// from linux. -func Hash3Words(a, b, c, initval uint32) uint32 { - const iv = 0xdeadbeef + (3 << 2) - initval += iv - - a += initval - b += initval - c += initval - - c ^= b - c -= rol32(b, 14) - a ^= c - a -= rol32(c, 11) - b ^= a - b -= rol32(a, 25) - c ^= b - c -= rol32(b, 16) - a ^= c - a -= rol32(c, 4) - b ^= a - b -= rol32(a, 14) - c ^= b - c -= rol32(b, 24) - - return c -} - -// IPv4FragmentHash computes the hash of the IPv4 fragment as suggested in RFC 791. -func IPv4FragmentHash(h header.IPv4) uint32 { - x := uint32(h.ID())<<16 | uint32(h.Protocol()) - t := h.SourceAddress().As4() - y := uint32(t[0]) | uint32(t[1])<<8 | uint32(t[2])<<16 | uint32(t[3])<<24 - t = h.DestinationAddress().As4() - z := uint32(t[0]) | uint32(t[1])<<8 | uint32(t[2])<<16 | uint32(t[3])<<24 - return Hash3Words(x, y, z, hashIV) -} - -// IPv6FragmentHash computes the hash of the ipv6 fragment. -// Unlike IPv4, the protocol is not used to compute the hash. -// RFC 2640 (sec 4.5) is not very sharp on this aspect. -// As a reference, also Linux ignores the protocol to compute -// the hash (inet6_hash_frag). -func IPv6FragmentHash(h header.IPv6, id uint32) uint32 { - t := h.SourceAddress().As16() - y := uint32(t[0]) | uint32(t[1])<<8 | uint32(t[2])<<16 | uint32(t[3])<<24 - t = h.DestinationAddress().As16() - z := uint32(t[0]) | uint32(t[1])<<8 | uint32(t[2])<<16 | uint32(t[3])<<24 - return Hash3Words(id, y, z, hashIV) -} - -func rol32(v, shift uint32) uint32 { - return (v << shift) | (v >> ((-shift) & 31)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/hash/hash_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/hash/hash_state_autogen.go deleted file mode 100644 index 9467fe2986..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/hash/hash_state_autogen.go +++ /dev/null @@ -1,3 +0,0 @@ -// automatically generated by stateify. - -package hash diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/fragmentation/fragmentation.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/fragmentation/fragmentation.go deleted file mode 100644 index 8697d4e4c9..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/fragmentation/fragmentation.go +++ /dev/null @@ -1,374 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package fragmentation contains the implementation of IP fragmentation. -// It is based on RFC 791, RFC 815 and RFC 8200. -package fragmentation - -import ( - "errors" - "fmt" - "time" - - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/log" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -const ( - // HighFragThreshold is the threshold at which we start trimming old - // fragmented packets. Linux uses a default value of 4 MB. See - // net.ipv4.ipfrag_high_thresh for more information. - HighFragThreshold = 4 << 20 // 4MB - - // LowFragThreshold is the threshold we reach to when we start dropping - // older fragmented packets. It's important that we keep enough room for newer - // packets to be re-assembled. Hence, this needs to be lower than - // HighFragThreshold enough. Linux uses a default value of 3 MB. See - // net.ipv4.ipfrag_low_thresh for more information. - LowFragThreshold = 3 << 20 // 3MB - - // minBlockSize is the minimum block size for fragments. - minBlockSize = 1 -) - -var ( - // ErrInvalidArgs indicates to the caller that an invalid argument was - // provided. - ErrInvalidArgs = errors.New("invalid args") - - // ErrFragmentOverlap indicates that, during reassembly, a fragment overlaps - // with another one. - ErrFragmentOverlap = errors.New("overlapping fragments") - - // ErrFragmentConflict indicates that, during reassembly, some fragments are - // in conflict with one another. - ErrFragmentConflict = errors.New("conflicting fragments") -) - -// FragmentID is the identifier for a fragment. -// -// +stateify savable -type FragmentID struct { - // Source is the source address of the fragment. - Source tcpip.Address - - // Destination is the destination address of the fragment. - Destination tcpip.Address - - // ID is the identification value of the fragment. - // - // This is a uint32 because IPv6 uses a 32-bit identification value. - ID uint32 - - // The protocol for the packet. - Protocol uint8 -} - -// Fragmentation is the main structure that other modules -// of the stack should use to implement IP Fragmentation. -// -// +stateify savable -type Fragmentation struct { - mu sync.Mutex `state:"nosave"` - highLimit int - lowLimit int - reassemblers map[FragmentID]*reassembler - rList reassemblerList - memSize int - timeout time.Duration - blockSize uint16 - clock tcpip.Clock - releaseJob *tcpip.Job - timeoutHandler TimeoutHandler -} - -// TimeoutHandler is consulted if a packet reassembly has timed out. -type TimeoutHandler interface { - // OnReassemblyTimeout will be called with the first fragment (or nil, if the - // first fragment has not been received) of a packet whose reassembly has - // timed out. - OnReassemblyTimeout(pkt *stack.PacketBuffer) -} - -// NewFragmentation creates a new Fragmentation. -// -// blockSize specifies the fragment block size, in bytes. -// -// highMemoryLimit specifies the limit on the memory consumed -// by the fragments stored by Fragmentation (overhead of internal data-structures -// is not accounted). Fragments are dropped when the limit is reached. -// -// lowMemoryLimit specifies the limit on which we will reach by dropping -// fragments after reaching highMemoryLimit. -// -// reassemblingTimeout specifies the maximum time allowed to reassemble a packet. -// Fragments are lazily evicted only when a new a packet with an -// already existing fragmentation-id arrives after the timeout. -func NewFragmentation(blockSize uint16, highMemoryLimit, lowMemoryLimit int, reassemblingTimeout time.Duration, clock tcpip.Clock, timeoutHandler TimeoutHandler) *Fragmentation { - if lowMemoryLimit >= highMemoryLimit { - lowMemoryLimit = highMemoryLimit - } - - if lowMemoryLimit < 0 { - lowMemoryLimit = 0 - } - - if blockSize < minBlockSize { - blockSize = minBlockSize - } - - f := &Fragmentation{ - reassemblers: make(map[FragmentID]*reassembler), - highLimit: highMemoryLimit, - lowLimit: lowMemoryLimit, - timeout: reassemblingTimeout, - blockSize: blockSize, - clock: clock, - timeoutHandler: timeoutHandler, - } - f.releaseJob = tcpip.NewJob(f.clock, &f.mu, f.releaseReassemblersLocked) - - return f -} - -// Process processes an incoming fragment belonging to an ID and returns a -// complete packet and its protocol number when all the packets belonging to -// that ID have been received. -// -// [first, last] is the range of the fragment bytes. -// -// first must be a multiple of the block size f is configured with. The size -// of the fragment data must be a multiple of the block size, unless there are -// no fragments following this fragment (more set to false). -// -// proto is the protocol number marked in the fragment being processed. It has -// to be given here outside of the FragmentID struct because IPv6 should not use -// the protocol to identify a fragment. -func (f *Fragmentation) Process( - id FragmentID, first, last uint16, more bool, proto uint8, pkt *stack.PacketBuffer) ( - *stack.PacketBuffer, uint8, bool, error) { - if first > last { - return nil, 0, false, fmt.Errorf("first=%d is greater than last=%d: %w", first, last, ErrInvalidArgs) - } - - if first%f.blockSize != 0 { - return nil, 0, false, fmt.Errorf("first=%d is not a multiple of block size=%d: %w", first, f.blockSize, ErrInvalidArgs) - } - - fragmentSize := last - first + 1 - if more && fragmentSize%f.blockSize != 0 { - return nil, 0, false, fmt.Errorf("fragment size=%d bytes is not a multiple of block size=%d on non-final fragment: %w", fragmentSize, f.blockSize, ErrInvalidArgs) - } - - if l := pkt.Data().Size(); l != int(fragmentSize) { - return nil, 0, false, fmt.Errorf("got fragment size=%d bytes not equal to the expected fragment size=%d bytes (first=%d last=%d): %w", l, fragmentSize, first, last, ErrInvalidArgs) - } - - f.mu.Lock() - if f.reassemblers == nil { - return nil, 0, false, fmt.Errorf("Release() called before fragmentation processing could finish") - } - - r, ok := f.reassemblers[id] - if !ok { - r = newReassembler(id, f.clock) - f.reassemblers[id] = r - wasEmpty := f.rList.Empty() - f.rList.PushFront(r) - if wasEmpty { - // If we have just pushed a first reassembler into an empty list, we - // should kickstart the release job. The release job will keep - // rescheduling itself until the list becomes empty. - f.releaseReassemblersLocked() - } - } - f.mu.Unlock() - - resPkt, firstFragmentProto, done, memConsumed, err := r.process(first, last, more, proto, pkt) - if err != nil { - // We probably got an invalid sequence of fragments. Just - // discard the reassembler and move on. - f.mu.Lock() - f.release(r, false /* timedOut */) - f.mu.Unlock() - return nil, 0, false, fmt.Errorf("fragmentation processing error: %w", err) - } - f.mu.Lock() - f.memSize += memConsumed - if done { - f.release(r, false /* timedOut */) - } - // Evict reassemblers if we are consuming more memory than highLimit until - // we reach lowLimit. - if f.memSize > f.highLimit { - for f.memSize > f.lowLimit { - tail := f.rList.Back() - if tail == nil { - break - } - f.release(tail, false /* timedOut */) - } - } - f.mu.Unlock() - return resPkt, firstFragmentProto, done, nil -} - -// Release releases all underlying resources. -func (f *Fragmentation) Release() { - f.mu.Lock() - defer f.mu.Unlock() - for _, r := range f.reassemblers { - f.release(r, false /* timedOut */) - } - f.reassemblers = nil -} - -func (f *Fragmentation) release(r *reassembler, timedOut bool) { - // Before releasing a fragment we need to check if r is already marked as done. - // Otherwise, we would delete it twice. - if r.checkDoneOrMark() { - return - } - - delete(f.reassemblers, r.id) - f.rList.Remove(r) - f.memSize -= r.memSize - if f.memSize < 0 { - log.Warningf("memory counter < 0 (%d), this is an accounting bug that requires investigation", f.memSize) - f.memSize = 0 - } - - if h := f.timeoutHandler; timedOut && h != nil { - h.OnReassemblyTimeout(r.pkt) - } - if r.pkt != nil { - r.pkt.DecRef() - r.pkt = nil - } - for _, h := range r.holes { - if h.pkt != nil { - h.pkt.DecRef() - h.pkt = nil - } - } - r.holes = nil -} - -// releaseReassemblersLocked releases already-expired reassemblers, then -// schedules the job to call back itself for the remaining reassemblers if -// any. This function must be called with f.mu locked. -func (f *Fragmentation) releaseReassemblersLocked() { - now := f.clock.NowMonotonic() - for { - // The reassembler at the end of the list is the oldest. - r := f.rList.Back() - if r == nil { - // The list is empty. - break - } - elapsed := now.Sub(r.createdAt) - if f.timeout > elapsed { - // If the oldest reassembler has not expired, schedule the release - // job so that this function is called back when it has expired. - f.releaseJob.Schedule(f.timeout - elapsed) - break - } - // If the oldest reassembler has already expired, release it. - f.release(r, true /* timedOut*/) - } -} - -// PacketFragmenter is the book-keeping struct for packet fragmentation. -type PacketFragmenter struct { - transportHeader []byte - data buffer.Buffer - reserve int - fragmentPayloadLen int - fragmentCount int - currentFragment int - fragmentOffset int -} - -// MakePacketFragmenter prepares the struct needed for packet fragmentation. -// -// pkt is the packet to be fragmented. -// -// fragmentPayloadLen is the maximum number of bytes of fragmentable data a fragment can -// have. -// -// reserve is the number of bytes that should be reserved for the headers in -// each generated fragment. -func MakePacketFragmenter(pkt *stack.PacketBuffer, fragmentPayloadLen uint32, reserve int) PacketFragmenter { - // As per RFC 8200 Section 4.5, some IPv6 extension headers should not be - // repeated in each fragment. However we do not currently support any header - // of that kind yet, so the following computation is valid for both IPv4 and - // IPv6. - // TODO(gvisor.dev/issue/3912): Once Authentication or ESP Headers are - // supported for outbound packets, the fragmentable data should not include - // these headers. - var fragmentableData buffer.Buffer - fragmentableData.Append(pkt.TransportHeader().View()) - pktBuf := pkt.Data().ToBuffer() - fragmentableData.Merge(&pktBuf) - fragmentCount := (uint32(fragmentableData.Size()) + fragmentPayloadLen - 1) / fragmentPayloadLen - - return PacketFragmenter{ - data: fragmentableData, - reserve: reserve, - fragmentPayloadLen: int(fragmentPayloadLen), - fragmentCount: int(fragmentCount), - } -} - -// BuildNextFragment returns a packet with the payload of the next fragment, -// along with the fragment's offset, the number of bytes copied and a boolean -// indicating if there are more fragments left or not. If this function is -// called again after it indicated that no more fragments were left, it will -// panic. -// -// Note that the returned packet will not have its network and link headers -// populated, but space for them will be reserved. The transport header will be -// stored in the packet's data. -func (pf *PacketFragmenter) BuildNextFragment() (*stack.PacketBuffer, int, int, bool) { - if pf.currentFragment >= pf.fragmentCount { - panic("BuildNextFragment should not be called again after the last fragment was returned") - } - - fragPkt := stack.NewPacketBuffer(stack.PacketBufferOptions{ - ReserveHeaderBytes: pf.reserve, - }) - - // Copy data for the fragment. - copied := fragPkt.Data().ReadFrom(&pf.data, pf.fragmentPayloadLen) - - offset := pf.fragmentOffset - pf.fragmentOffset += copied - pf.currentFragment++ - more := pf.currentFragment != pf.fragmentCount - - return fragPkt, offset, copied, more -} - -// RemainingFragmentCount returns the number of fragments left to be built. -func (pf *PacketFragmenter) RemainingFragmentCount() int { - return pf.fragmentCount - pf.currentFragment -} - -// Release frees resources owned by the packet fragmenter. -func (pf *PacketFragmenter) Release() { - pf.data.Release() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/fragmentation/fragmentation_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/fragmentation/fragmentation_state_autogen.go deleted file mode 100644 index 2697d9a459..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/fragmentation/fragmentation_state_autogen.go +++ /dev/null @@ -1,246 +0,0 @@ -// automatically generated by stateify. - -package fragmentation - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (f *FragmentID) StateTypeName() string { - return "pkg/tcpip/network/internal/fragmentation.FragmentID" -} - -func (f *FragmentID) StateFields() []string { - return []string{ - "Source", - "Destination", - "ID", - "Protocol", - } -} - -func (f *FragmentID) beforeSave() {} - -// +checklocksignore -func (f *FragmentID) StateSave(stateSinkObject state.Sink) { - f.beforeSave() - stateSinkObject.Save(0, &f.Source) - stateSinkObject.Save(1, &f.Destination) - stateSinkObject.Save(2, &f.ID) - stateSinkObject.Save(3, &f.Protocol) -} - -func (f *FragmentID) afterLoad(context.Context) {} - -// +checklocksignore -func (f *FragmentID) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &f.Source) - stateSourceObject.Load(1, &f.Destination) - stateSourceObject.Load(2, &f.ID) - stateSourceObject.Load(3, &f.Protocol) -} - -func (f *Fragmentation) StateTypeName() string { - return "pkg/tcpip/network/internal/fragmentation.Fragmentation" -} - -func (f *Fragmentation) StateFields() []string { - return []string{ - "highLimit", - "lowLimit", - "reassemblers", - "rList", - "memSize", - "timeout", - "blockSize", - "clock", - "releaseJob", - "timeoutHandler", - } -} - -func (f *Fragmentation) beforeSave() {} - -// +checklocksignore -func (f *Fragmentation) StateSave(stateSinkObject state.Sink) { - f.beforeSave() - stateSinkObject.Save(0, &f.highLimit) - stateSinkObject.Save(1, &f.lowLimit) - stateSinkObject.Save(2, &f.reassemblers) - stateSinkObject.Save(3, &f.rList) - stateSinkObject.Save(4, &f.memSize) - stateSinkObject.Save(5, &f.timeout) - stateSinkObject.Save(6, &f.blockSize) - stateSinkObject.Save(7, &f.clock) - stateSinkObject.Save(8, &f.releaseJob) - stateSinkObject.Save(9, &f.timeoutHandler) -} - -func (f *Fragmentation) afterLoad(context.Context) {} - -// +checklocksignore -func (f *Fragmentation) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &f.highLimit) - stateSourceObject.Load(1, &f.lowLimit) - stateSourceObject.Load(2, &f.reassemblers) - stateSourceObject.Load(3, &f.rList) - stateSourceObject.Load(4, &f.memSize) - stateSourceObject.Load(5, &f.timeout) - stateSourceObject.Load(6, &f.blockSize) - stateSourceObject.Load(7, &f.clock) - stateSourceObject.Load(8, &f.releaseJob) - stateSourceObject.Load(9, &f.timeoutHandler) -} - -func (h *hole) StateTypeName() string { - return "pkg/tcpip/network/internal/fragmentation.hole" -} - -func (h *hole) StateFields() []string { - return []string{ - "first", - "last", - "filled", - "final", - "pkt", - } -} - -func (h *hole) beforeSave() {} - -// +checklocksignore -func (h *hole) StateSave(stateSinkObject state.Sink) { - h.beforeSave() - stateSinkObject.Save(0, &h.first) - stateSinkObject.Save(1, &h.last) - stateSinkObject.Save(2, &h.filled) - stateSinkObject.Save(3, &h.final) - stateSinkObject.Save(4, &h.pkt) -} - -func (h *hole) afterLoad(context.Context) {} - -// +checklocksignore -func (h *hole) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &h.first) - stateSourceObject.Load(1, &h.last) - stateSourceObject.Load(2, &h.filled) - stateSourceObject.Load(3, &h.final) - stateSourceObject.Load(4, &h.pkt) -} - -func (r *reassembler) StateTypeName() string { - return "pkg/tcpip/network/internal/fragmentation.reassembler" -} - -func (r *reassembler) StateFields() []string { - return []string{ - "reassemblerEntry", - "id", - "memSize", - "proto", - "holes", - "filled", - "done", - "createdAt", - "pkt", - } -} - -func (r *reassembler) beforeSave() {} - -// +checklocksignore -func (r *reassembler) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.reassemblerEntry) - stateSinkObject.Save(1, &r.id) - stateSinkObject.Save(2, &r.memSize) - stateSinkObject.Save(3, &r.proto) - stateSinkObject.Save(4, &r.holes) - stateSinkObject.Save(5, &r.filled) - stateSinkObject.Save(6, &r.done) - stateSinkObject.Save(7, &r.createdAt) - stateSinkObject.Save(8, &r.pkt) -} - -func (r *reassembler) afterLoad(context.Context) {} - -// +checklocksignore -func (r *reassembler) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.reassemblerEntry) - stateSourceObject.Load(1, &r.id) - stateSourceObject.Load(2, &r.memSize) - stateSourceObject.Load(3, &r.proto) - stateSourceObject.Load(4, &r.holes) - stateSourceObject.Load(5, &r.filled) - stateSourceObject.Load(6, &r.done) - stateSourceObject.Load(7, &r.createdAt) - stateSourceObject.Load(8, &r.pkt) -} - -func (l *reassemblerList) StateTypeName() string { - return "pkg/tcpip/network/internal/fragmentation.reassemblerList" -} - -func (l *reassemblerList) StateFields() []string { - return []string{ - "head", - "tail", - } -} - -func (l *reassemblerList) beforeSave() {} - -// +checklocksignore -func (l *reassemblerList) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.head) - stateSinkObject.Save(1, &l.tail) -} - -func (l *reassemblerList) afterLoad(context.Context) {} - -// +checklocksignore -func (l *reassemblerList) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.head) - stateSourceObject.Load(1, &l.tail) -} - -func (e *reassemblerEntry) StateTypeName() string { - return "pkg/tcpip/network/internal/fragmentation.reassemblerEntry" -} - -func (e *reassemblerEntry) StateFields() []string { - return []string{ - "next", - "prev", - } -} - -func (e *reassemblerEntry) beforeSave() {} - -// +checklocksignore -func (e *reassemblerEntry) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.next) - stateSinkObject.Save(1, &e.prev) -} - -func (e *reassemblerEntry) afterLoad(context.Context) {} - -// +checklocksignore -func (e *reassemblerEntry) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.next) - stateSourceObject.Load(1, &e.prev) -} - -func init() { - state.Register((*FragmentID)(nil)) - state.Register((*Fragmentation)(nil)) - state.Register((*hole)(nil)) - state.Register((*reassembler)(nil)) - state.Register((*reassemblerList)(nil)) - state.Register((*reassemblerEntry)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/fragmentation/reassembler.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/fragmentation/reassembler.go deleted file mode 100644 index 9aaad76320..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/fragmentation/reassembler.go +++ /dev/null @@ -1,185 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package fragmentation - -import ( - "math" - "sort" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -// +stateify savable -type hole struct { - first uint16 - last uint16 - filled bool - final bool - // pkt is the fragment packet if hole is filled. We keep the whole pkt rather - // than the fragmented payload to prevent binding to specific buffer types. - pkt *stack.PacketBuffer -} - -// +stateify savable -type reassembler struct { - reassemblerEntry - id FragmentID - memSize int - proto uint8 - mu sync.Mutex `state:"nosave"` - holes []hole - filled int - done bool - createdAt tcpip.MonotonicTime - pkt *stack.PacketBuffer -} - -func newReassembler(id FragmentID, clock tcpip.Clock) *reassembler { - r := &reassembler{ - id: id, - createdAt: clock.NowMonotonic(), - } - r.holes = append(r.holes, hole{ - first: 0, - last: math.MaxUint16, - filled: false, - final: true, - }) - return r -} - -func (r *reassembler) process(first, last uint16, more bool, proto uint8, pkt *stack.PacketBuffer) (*stack.PacketBuffer, uint8, bool, int, error) { - r.mu.Lock() - defer r.mu.Unlock() - if r.done { - // A concurrent goroutine might have already reassembled - // the packet and emptied the heap while this goroutine - // was waiting on the mutex. We don't have to do anything in this case. - return nil, 0, false, 0, nil - } - - var holeFound bool - var memConsumed int - for i := range r.holes { - currentHole := &r.holes[i] - - if last < currentHole.first || currentHole.last < first { - continue - } - // For IPv6, overlaps with an existing fragment are explicitly forbidden by - // RFC 8200 section 4.5: - // If any of the fragments being reassembled overlap with any other - // fragments being reassembled for the same packet, reassembly of that - // packet must be abandoned and all the fragments that have been received - // for that packet must be discarded, and no ICMP error messages should be - // sent. - // - // It is not explicitly forbidden for IPv4, but to keep parity with Linux we - // disallow it as well: - // https://github.com/torvalds/linux/blob/38525c6/net/ipv4/inet_fragment.c#L349 - if first < currentHole.first || currentHole.last < last { - // Incoming fragment only partially fits in the free hole. - return nil, 0, false, 0, ErrFragmentOverlap - } - if !more { - if !currentHole.final || currentHole.filled && currentHole.last != last { - // We have another final fragment, which does not perfectly overlap. - return nil, 0, false, 0, ErrFragmentConflict - } - } - - holeFound = true - if currentHole.filled { - // Incoming fragment is a duplicate. - continue - } - - // We are populating the current hole with the payload and creating a new - // hole for any unfilled ranges on either end. - if first > currentHole.first { - r.holes = append(r.holes, hole{ - first: currentHole.first, - last: first - 1, - filled: false, - final: false, - }) - } - if last < currentHole.last && more { - r.holes = append(r.holes, hole{ - first: last + 1, - last: currentHole.last, - filled: false, - final: currentHole.final, - }) - currentHole.final = false - } - memConsumed = pkt.MemSize() - r.memSize += memConsumed - // Update the current hole to precisely match the incoming fragment. - r.holes[i] = hole{ - first: first, - last: last, - filled: true, - final: currentHole.final, - pkt: pkt.IncRef(), - } - r.filled++ - // For IPv6, it is possible to have different Protocol values between - // fragments of a packet (because, unlike IPv4, the Protocol is not used to - // identify a fragment). In this case, only the Protocol of the first - // fragment must be used as per RFC 8200 Section 4.5. - // - // TODO(gvisor.dev/issue/3648): During reassembly of an IPv6 packet, IP - // options received in the first fragment should be used - and they should - // override options from following fragments. - if first == 0 { - if r.pkt != nil { - r.pkt.DecRef() - } - r.pkt = pkt.IncRef() - r.proto = proto - } - break - } - if !holeFound { - // Incoming fragment is beyond end. - return nil, 0, false, 0, ErrFragmentConflict - } - - // Check if all the holes have been filled and we are ready to reassemble. - if r.filled < len(r.holes) { - return nil, 0, false, memConsumed, nil - } - - sort.Slice(r.holes, func(i, j int) bool { - return r.holes[i].first < r.holes[j].first - }) - - resPkt := r.holes[0].pkt.Clone() - for i := 1; i < len(r.holes); i++ { - stack.MergeFragment(resPkt, r.holes[i].pkt) - } - return resPkt, r.proto, true /* done */, memConsumed, nil -} - -func (r *reassembler) checkDoneOrMark() bool { - r.mu.Lock() - prev := r.done - r.done = true - r.mu.Unlock() - return prev -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/fragmentation/reassembler_list.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/fragmentation/reassembler_list.go deleted file mode 100644 index 949a0accff..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/fragmentation/reassembler_list.go +++ /dev/null @@ -1,239 +0,0 @@ -package fragmentation - -// ElementMapper provides an identity mapping by default. -// -// This can be replaced to provide a struct that maps elements to linker -// objects, if they are not the same. An ElementMapper is not typically -// required if: Linker is left as is, Element is left as is, or Linker and -// Element are the same type. -type reassemblerElementMapper struct{} - -// linkerFor maps an Element to a Linker. -// -// This default implementation should be inlined. -// -//go:nosplit -func (reassemblerElementMapper) linkerFor(elem *reassembler) *reassembler { return elem } - -// List is an intrusive list. Entries can be added to or removed from the list -// in O(1) time and with no additional memory allocations. -// -// The zero value for List is an empty list ready to use. -// -// To iterate over a list (where l is a List): -// -// for e := l.Front(); e != nil; e = e.Next() { -// // do something with e. -// } -// -// +stateify savable -type reassemblerList struct { - head *reassembler - tail *reassembler -} - -// Reset resets list l to the empty state. -func (l *reassemblerList) Reset() { - l.head = nil - l.tail = nil -} - -// Empty returns true iff the list is empty. -// -//go:nosplit -func (l *reassemblerList) Empty() bool { - return l.head == nil -} - -// Front returns the first element of list l or nil. -// -//go:nosplit -func (l *reassemblerList) Front() *reassembler { - return l.head -} - -// Back returns the last element of list l or nil. -// -//go:nosplit -func (l *reassemblerList) Back() *reassembler { - return l.tail -} - -// Len returns the number of elements in the list. -// -// NOTE: This is an O(n) operation. -// -//go:nosplit -func (l *reassemblerList) Len() (count int) { - for e := l.Front(); e != nil; e = (reassemblerElementMapper{}.linkerFor(e)).Next() { - count++ - } - return count -} - -// PushFront inserts the element e at the front of list l. -// -//go:nosplit -func (l *reassemblerList) PushFront(e *reassembler) { - linker := reassemblerElementMapper{}.linkerFor(e) - linker.SetNext(l.head) - linker.SetPrev(nil) - if l.head != nil { - reassemblerElementMapper{}.linkerFor(l.head).SetPrev(e) - } else { - l.tail = e - } - - l.head = e -} - -// PushFrontList inserts list m at the start of list l, emptying m. -// -//go:nosplit -func (l *reassemblerList) PushFrontList(m *reassemblerList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - reassemblerElementMapper{}.linkerFor(l.head).SetPrev(m.tail) - reassemblerElementMapper{}.linkerFor(m.tail).SetNext(l.head) - - l.head = m.head - } - m.head = nil - m.tail = nil -} - -// PushBack inserts the element e at the back of list l. -// -//go:nosplit -func (l *reassemblerList) PushBack(e *reassembler) { - linker := reassemblerElementMapper{}.linkerFor(e) - linker.SetNext(nil) - linker.SetPrev(l.tail) - if l.tail != nil { - reassemblerElementMapper{}.linkerFor(l.tail).SetNext(e) - } else { - l.head = e - } - - l.tail = e -} - -// PushBackList inserts list m at the end of list l, emptying m. -// -//go:nosplit -func (l *reassemblerList) PushBackList(m *reassemblerList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - reassemblerElementMapper{}.linkerFor(l.tail).SetNext(m.head) - reassemblerElementMapper{}.linkerFor(m.head).SetPrev(l.tail) - - l.tail = m.tail - } - m.head = nil - m.tail = nil -} - -// InsertAfter inserts e after b. -// -//go:nosplit -func (l *reassemblerList) InsertAfter(b, e *reassembler) { - bLinker := reassemblerElementMapper{}.linkerFor(b) - eLinker := reassemblerElementMapper{}.linkerFor(e) - - a := bLinker.Next() - - eLinker.SetNext(a) - eLinker.SetPrev(b) - bLinker.SetNext(e) - - if a != nil { - reassemblerElementMapper{}.linkerFor(a).SetPrev(e) - } else { - l.tail = e - } -} - -// InsertBefore inserts e before a. -// -//go:nosplit -func (l *reassemblerList) InsertBefore(a, e *reassembler) { - aLinker := reassemblerElementMapper{}.linkerFor(a) - eLinker := reassemblerElementMapper{}.linkerFor(e) - - b := aLinker.Prev() - eLinker.SetNext(a) - eLinker.SetPrev(b) - aLinker.SetPrev(e) - - if b != nil { - reassemblerElementMapper{}.linkerFor(b).SetNext(e) - } else { - l.head = e - } -} - -// Remove removes e from l. -// -//go:nosplit -func (l *reassemblerList) Remove(e *reassembler) { - linker := reassemblerElementMapper{}.linkerFor(e) - prev := linker.Prev() - next := linker.Next() - - if prev != nil { - reassemblerElementMapper{}.linkerFor(prev).SetNext(next) - } else if l.head == e { - l.head = next - } - - if next != nil { - reassemblerElementMapper{}.linkerFor(next).SetPrev(prev) - } else if l.tail == e { - l.tail = prev - } - - linker.SetNext(nil) - linker.SetPrev(nil) -} - -// Entry is a default implementation of Linker. Users can add anonymous fields -// of this type to their structs to make them automatically implement the -// methods needed by List. -// -// +stateify savable -type reassemblerEntry struct { - next *reassembler - prev *reassembler -} - -// Next returns the entry that follows e in the list. -// -//go:nosplit -func (e *reassemblerEntry) Next() *reassembler { - return e.next -} - -// Prev returns the entry that precedes e in the list. -// -//go:nosplit -func (e *reassemblerEntry) Prev() *reassembler { - return e.prev -} - -// SetNext assigns 'entry' as the entry that follows e in the list. -// -//go:nosplit -func (e *reassemblerEntry) SetNext(elem *reassembler) { - e.next = elem -} - -// SetPrev assigns 'entry' as the entry that precedes e in the list. -// -//go:nosplit -func (e *reassemblerEntry) SetPrev(elem *reassembler) { - e.prev = elem -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/ip/duplicate_address_detection.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/ip/duplicate_address_detection.go deleted file mode 100644 index 66661f3c94..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/ip/duplicate_address_detection.go +++ /dev/null @@ -1,304 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package ip holds IPv4/IPv6 common utilities. -package ip - -import ( - "bytes" - "fmt" - "io" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -type extendRequest int - -const ( - notRequested extendRequest = iota - requested - extended -) - -// +stateify savable -type dadState struct { - nonce []byte - extendRequest extendRequest - - done *bool - timer tcpip.Timer - - completionHandlers []stack.DADCompletionHandler -} - -// DADProtocol is a protocol whose core state machine can be represented by DAD. -type DADProtocol interface { - // SendDADMessage attempts to send a DAD probe message. - SendDADMessage(tcpip.Address, []byte) tcpip.Error -} - -// DADOptions holds options for DAD. -// -// +stateify savable -type DADOptions struct { - Clock tcpip.Clock - // TODO(b/341946753): Restore when netstack is savable. - SecureRNG io.Reader `state:"nosave"` - NonceSize uint8 - ExtendDADTransmits uint8 - Protocol DADProtocol - NICID tcpip.NICID -} - -// DAD performs duplicate address detection for addresses. -// -// +stateify savable -type DAD struct { - opts DADOptions - configs stack.DADConfigurations - - protocolMU sync.Locker `state:"nosave"` - addresses map[tcpip.Address]dadState -} - -// Init initializes the DAD state. -// -// Must only be called once for the lifetime of d; Init will panic if it is -// called twice. -// -// The lock will only be taken when timers fire. -func (d *DAD) Init(protocolMU sync.Locker, configs stack.DADConfigurations, opts DADOptions) { - if d.addresses != nil { - panic("attempted to initialize DAD state twice") - } - - if opts.NonceSize != 0 && opts.ExtendDADTransmits == 0 { - panic(fmt.Sprintf("given a non-zero value for NonceSize (%d) but zero for ExtendDADTransmits", opts.NonceSize)) - } - - configs.Validate() - - *d = DAD{ - opts: opts, - configs: configs, - protocolMU: protocolMU, - addresses: make(map[tcpip.Address]dadState), - } -} - -// CheckDuplicateAddressLocked performs DAD for an address, calling the -// completion handler once DAD resolves. -// -// If DAD is already performing for the provided address, h will be called when -// the currently running process completes. -// -// Precondition: d.protocolMU must be locked. -func (d *DAD) CheckDuplicateAddressLocked(addr tcpip.Address, h stack.DADCompletionHandler) stack.DADCheckAddressDisposition { - if d.configs.DupAddrDetectTransmits == 0 { - return stack.DADDisabled - } - - ret := stack.DADAlreadyRunning - s, ok := d.addresses[addr] - if !ok { - ret = stack.DADStarting - - remaining := d.configs.DupAddrDetectTransmits - - // Protected by d.protocolMU. - done := false - - s = dadState{ - done: &done, - timer: d.opts.Clock.AfterFunc(0, func() { - dadDone := remaining == 0 - - nonce, earlyReturn := func() ([]byte, bool) { - d.protocolMU.Lock() - defer d.protocolMU.Unlock() - - if done { - return nil, true - } - - s, ok := d.addresses[addr] - if !ok { - panic(fmt.Sprintf("dad: timer fired but missing state for %s on NIC(%d)", addr, d.opts.NICID)) - } - - // As per RFC 7527 section 4 - // - // If any probe is looped back within RetransTimer milliseconds - // after having sent DupAddrDetectTransmits NS(DAD) messages, the - // interface continues with another MAX_MULTICAST_SOLICIT number of - // NS(DAD) messages transmitted RetransTimer milliseconds apart. - if dadDone && s.extendRequest == requested { - dadDone = false - remaining = d.opts.ExtendDADTransmits - s.extendRequest = extended - } - - if !dadDone && d.opts.NonceSize != 0 { - if s.nonce == nil { - s.nonce = make([]byte, d.opts.NonceSize) - } - - if n, err := io.ReadFull(d.opts.SecureRNG, s.nonce); err != nil { - panic(fmt.Sprintf("SecureRNG.Read(...): %s", err)) - } else if n != len(s.nonce) { - panic(fmt.Sprintf("expected to read %d bytes from secure RNG, only read %d bytes", len(s.nonce), n)) - } - } - - d.addresses[addr] = s - return s.nonce, false - }() - if earlyReturn { - return - } - - var err tcpip.Error - if !dadDone { - err = d.opts.Protocol.SendDADMessage(addr, nonce) - } - - d.protocolMU.Lock() - defer d.protocolMU.Unlock() - - if done { - return - } - - s, ok := d.addresses[addr] - if !ok { - panic(fmt.Sprintf("dad: timer fired but missing state for %s on NIC(%d)", addr, d.opts.NICID)) - } - - if !dadDone && err == nil { - remaining-- - s.timer.Reset(d.configs.RetransmitTimer) - return - } - - // At this point we know that either DAD has resolved or we hit an error - // sending the last DAD message. Either way, clear the DAD state. - done = false - s.timer.Stop() - delete(d.addresses, addr) - - var res stack.DADResult = &stack.DADSucceeded{} - if err != nil { - res = &stack.DADError{Err: err} - } - for _, h := range s.completionHandlers { - h(res) - } - }), - } - } - - s.completionHandlers = append(s.completionHandlers, h) - d.addresses[addr] = s - return ret -} - -// ExtendIfNonceEqualLockedDisposition enumerates the possible results from -// ExtendIfNonceEqualLocked. -type ExtendIfNonceEqualLockedDisposition int - -const ( - // Extended indicates that the DAD process was extended. - Extended ExtendIfNonceEqualLockedDisposition = iota - - // AlreadyExtended indicates that the DAD process was already extended. - AlreadyExtended - - // NoDADStateFound indicates that DAD state was not found for the address. - NoDADStateFound - - // NonceDisabled indicates that nonce values are not sent with DAD messages. - NonceDisabled - - // NonceNotEqual indicates that the nonce value passed and the nonce in the - // last send DAD message are not equal. - NonceNotEqual -) - -// ExtendIfNonceEqualLocked extends the DAD process if the provided nonce is the -// same as the nonce sent in the last DAD message. -// -// Precondition: d.protocolMU must be locked. -func (d *DAD) ExtendIfNonceEqualLocked(addr tcpip.Address, nonce []byte) ExtendIfNonceEqualLockedDisposition { - s, ok := d.addresses[addr] - if !ok { - return NoDADStateFound - } - - if d.opts.NonceSize == 0 { - return NonceDisabled - } - - if s.extendRequest != notRequested { - return AlreadyExtended - } - - // As per RFC 7527 section 4 - // - // If any probe is looped back within RetransTimer milliseconds after having - // sent DupAddrDetectTransmits NS(DAD) messages, the interface continues - // with another MAX_MULTICAST_SOLICIT number of NS(DAD) messages transmitted - // RetransTimer milliseconds apart. - // - // If a DAD message has already been sent and the nonce value we observed is - // the same as the nonce value we last sent, then we assume our probe was - // looped back and request an extension to the DAD process. - // - // Note, the first DAD message is sent asynchronously so we need to make sure - // that we sent a DAD message by checking if we have a nonce value set. - if s.nonce != nil && bytes.Equal(s.nonce, nonce) { - s.extendRequest = requested - d.addresses[addr] = s - return Extended - } - - return NonceNotEqual -} - -// StopLocked stops a currently running DAD process. -// -// Precondition: d.protocolMU must be locked. -func (d *DAD) StopLocked(addr tcpip.Address, reason stack.DADResult) { - s, ok := d.addresses[addr] - if !ok { - return - } - - *s.done = true - s.timer.Stop() - delete(d.addresses, addr) - - for _, h := range s.completionHandlers { - h(reason) - } -} - -// SetConfigsLocked sets the DAD configurations. -// -// Precondition: d.protocolMU must be locked. -func (d *DAD) SetConfigsLocked(c stack.DADConfigurations) { - c.Validate() - d.configs = c -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/ip/errors.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/ip/errors.go deleted file mode 100644 index c99a4fe20b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/ip/errors.go +++ /dev/null @@ -1,129 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package ip - -import ( - "fmt" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -// ForwardingError represents an error that occurred while trying to forward -// a packet. -type ForwardingError interface { - isForwardingError() - fmt.Stringer -} - -// ErrTTLExceeded indicates that the received packet's TTL has been exceeded. -type ErrTTLExceeded struct{} - -func (*ErrTTLExceeded) isForwardingError() {} - -func (*ErrTTLExceeded) String() string { return "ttl exceeded" } - -// ErrOutgoingDeviceNoBufferSpace indicates that the outgoing device does not -// have enough space to hold a buffer. -type ErrOutgoingDeviceNoBufferSpace struct{} - -func (*ErrOutgoingDeviceNoBufferSpace) isForwardingError() {} - -func (*ErrOutgoingDeviceNoBufferSpace) String() string { return "no device buffer space" } - -// ErrParameterProblem indicates the received packet had a problem with an IP -// parameter. -type ErrParameterProblem struct{} - -func (*ErrParameterProblem) isForwardingError() {} - -func (*ErrParameterProblem) String() string { return "parameter problem" } - -// ErrInitializingSourceAddress indicates the received packet had a source -// address that may only be used on the local network as part of initialization -// work. -type ErrInitializingSourceAddress struct{} - -func (*ErrInitializingSourceAddress) isForwardingError() {} - -func (*ErrInitializingSourceAddress) String() string { return "initializing source address" } - -// ErrLinkLocalSourceAddress indicates the received packet had a link-local -// source address. -type ErrLinkLocalSourceAddress struct{} - -func (*ErrLinkLocalSourceAddress) isForwardingError() {} - -func (*ErrLinkLocalSourceAddress) String() string { return "link local source address" } - -// ErrLinkLocalDestinationAddress indicates the received packet had a link-local -// destination address. -type ErrLinkLocalDestinationAddress struct{} - -func (*ErrLinkLocalDestinationAddress) isForwardingError() {} - -func (*ErrLinkLocalDestinationAddress) String() string { return "link local destination address" } - -// ErrHostUnreachable indicates that the destination host could not be reached. -type ErrHostUnreachable struct{} - -func (*ErrHostUnreachable) isForwardingError() {} - -func (*ErrHostUnreachable) String() string { return "no route to host" } - -// ErrMessageTooLong indicates the packet was too big for the outgoing MTU. -// -// +stateify savable -type ErrMessageTooLong struct{} - -func (*ErrMessageTooLong) isForwardingError() {} - -func (*ErrMessageTooLong) String() string { return "message too long" } - -// ErrNoMulticastPendingQueueBufferSpace indicates that a multicast packet -// could not be added to the pending packet queue due to insufficient buffer -// space. -// -// +stateify savable -type ErrNoMulticastPendingQueueBufferSpace struct{} - -func (*ErrNoMulticastPendingQueueBufferSpace) isForwardingError() {} - -func (*ErrNoMulticastPendingQueueBufferSpace) String() string { return "no buffer space" } - -// ErrUnexpectedMulticastInputInterface indicates that the interface that the -// packet arrived on did not match the routes expected input interface. -type ErrUnexpectedMulticastInputInterface struct{} - -func (*ErrUnexpectedMulticastInputInterface) isForwardingError() {} - -func (*ErrUnexpectedMulticastInputInterface) String() string { return "unexpected input interface" } - -// ErrUnknownOutputEndpoint indicates that the output endpoint associated with -// a route could not be found. -type ErrUnknownOutputEndpoint struct{} - -func (*ErrUnknownOutputEndpoint) isForwardingError() {} - -func (*ErrUnknownOutputEndpoint) String() string { return "unknown endpoint" } - -// ErrOther indicates the packet coould not be forwarded for a reason -// captured by the contained error. -type ErrOther struct { - Err tcpip.Error -} - -func (*ErrOther) isForwardingError() {} - -func (e *ErrOther) String() string { return fmt.Sprintf("other tcpip error: %s", e.Err) } diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/ip/generic_multicast_protocol.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/ip/generic_multicast_protocol.go deleted file mode 100644 index 3e7ca67e5b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/ip/generic_multicast_protocol.go +++ /dev/null @@ -1,1192 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package ip - -import ( - "fmt" - "math/rand" - "time" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" -) - -const ( - // As per RFC 2236 section 3, - // - // When a host joins a multicast group, it should immediately transmit - // an unsolicited Version 2 Membership Report for that group, in case it - // is the first member of that group on the network. To cover the - // possibility of the initial Membership Report being lost or damaged, - // it is recommended that it be repeated once or twice after short - // delays [Unsolicited Report Interval]. (A simple way to accomplish - // this is to send the initial Version 2 Membership Report and then act - // as if a Group-Specific Query was received for that group, and set a - // timer appropriately). - // - // As per RFC 2710 section 4, - // - // When a node starts listening to a multicast address on an interface, - // it should immediately transmit an unsolicited Report for that address - // on that interface, in case it is the first listener on the link. To - // cover the possibility of the initial Report being lost or damaged, it - // is recommended that it be repeated once or twice after short delays - // [Unsolicited Report Interval]. (A simple way to accomplish this is - // to send the initial Report and then act as if a Multicast-Address- - // Specific Query was received for that address, and set a timer - // appropriately). - unsolicitedTransmissionCount = 2 - - // Responses to queries may be delayed, but we only send a response to a - // query once. A response to a query can be handled by any pending - // unsolicited transmission count, but we should send at least one report - // after sending a query. - // - // As per RFC 2236 section 3, - // - // When a host receives a General Query, it sets delay timers for each - // group (excluding the all-systems group) of which it is a member on - // the interface from which it received the query. - // - // As per RFC 2710 section 4, - // - // When a node receives a General Query, it sets a delay timer for each - // multicast address to which it is listening on the interface from - // which it received the Query, EXCLUDING the link-scope all-nodes - // address and any multicast addresses of scope 0 (reserved) or 1 - // (node-local). - minQueryResponseTransmissionCount = 1 - - // DefaultRobustnessVariable is the default robustness variable - // - // As per RFC 3810 section 9.1 (for MLDv2), - // - // The Robustness Variable allows tuning for the expected packet loss on - // a link. If a link is expected to be lossy, the value of the - // Robustness Variable may be increased. MLD is robust to [Robustness - // Variable] - 1 packet losses. The value of the Robustness Variable - // MUST NOT be zero, and SHOULD NOT be one. Default value: 2. - // - // As per RFC 3376 section 8.1 (for IGMPv3), - // - // The Robustness Variable allows tuning for the expected packet loss on - // a network. If a network is expected to be lossy, the Robustness - // Variable may be increased. IGMP is robust to (Robustness Variable - - // 1) packet losses. The Robustness Variable MUST NOT be zero, and - // SHOULD NOT be one. Default: 2 - DefaultRobustnessVariable = 2 - - // DefaultQueryInterval is the default query interval. - // - // As per RFC 3810 section 9.2 (for MLDv2), - // - // The Query Interval variable denotes the interval between General - // Queries sent by the Querier. Default value: 125 seconds. - // - // As per RFC 3376 section 8.2 (for IGMPv3), - // - // The Query Interval is the interval between General Queries sent by - // the Querier. Default: 125 seconds. - DefaultQueryInterval = 125 * time.Second -) - -// multicastGroupState holds the Generic Multicast Protocol state for a -// multicast group. -// -// +stateify savable -type multicastGroupState struct { - // joins is the number of times the group has been joined. - joins uint64 - - // transmissionLeft is the number of transmissions left to send. - transmissionLeft uint8 - - // lastToSendReport is true if we sent the last report for the group. It is - // used to track whether there are other hosts on the subnet that are also - // members of the group. - // - // Defined in RFC 2236 section 6 page 9 for IGMPv2 and RFC 2710 section 5 page - // 8 for MLDv1. - lastToSendReport bool - - // delayedReportJob is used to delay sending responses to membership report - // messages in order to reduce duplicate reports from multiple hosts on the - // interface. - // - // Must not be nil. - delayedReportJob *tcpip.Job - - // delyedReportJobFiresAt is the time when the delayed report job will fire. - // - // A zero value indicates that the job is not scheduled. - // TODO(b/341946753): Restore when netstack is savable. - delayedReportJobFiresAt time.Time `state:"nosave"` - - // queriedIncludeSources holds sources that were queried for. - // - // Indicates that there is a pending source-specific query response for the - // multicast address. - queriedIncludeSources map[tcpip.Address]struct{} - - deleteScheduled bool -} - -func (m *multicastGroupState) cancelDelayedReportJob() { - m.delayedReportJob.Cancel() - m.delayedReportJobFiresAt = time.Time{} - m.transmissionLeft = 0 -} - -func (m *multicastGroupState) clearQueriedIncludeSources() { - for source := range m.queriedIncludeSources { - delete(m.queriedIncludeSources, source) - } -} - -// GenericMulticastProtocolOptions holds options for the generic multicast -// protocol. -// -// +stateify savable -type GenericMulticastProtocolOptions struct { - // Rand is the source of random numbers. - // TODO(b/341946753): Restore when netstack is savable. - Rand *rand.Rand `state:"nosave"` - - // Clock is the clock used to create timers. - Clock tcpip.Clock - - // Protocol is the implementation of the variant of multicast group protocol - // in use. - Protocol MulticastGroupProtocol - - // MaxUnsolicitedReportDelay is the maximum amount of time to wait between - // transmitting unsolicited reports. - // - // Unsolicited reports are transmitted when a group is newly joined. - MaxUnsolicitedReportDelay time.Duration -} - -// MulticastGroupProtocolV2ReportRecordType is the type of a -// MulticastGroupProtocolv2 multicast address record. -type MulticastGroupProtocolV2ReportRecordType int - -// MulticastGroupProtocolv2 multicast address record types. -const ( - _ MulticastGroupProtocolV2ReportRecordType = iota - MulticastGroupProtocolV2ReportRecordModeIsInclude - MulticastGroupProtocolV2ReportRecordModeIsExclude - MulticastGroupProtocolV2ReportRecordChangeToIncludeMode - MulticastGroupProtocolV2ReportRecordChangeToExcludeMode - MulticastGroupProtocolV2ReportRecordAllowNewSources - MulticastGroupProtocolV2ReportRecordBlockOldSources -) - -// MulticastGroupProtocolV2ReportBuilder is a builder for a V2 report. -type MulticastGroupProtocolV2ReportBuilder interface { - // AddRecord adds a record to the report. - AddRecord(recordType MulticastGroupProtocolV2ReportRecordType, groupAddress tcpip.Address) - - // Send sends the report. - // - // Does nothing if no records were added. - // - // It is invalid to use this builder after this method is called. - Send() (sent bool, err tcpip.Error) -} - -// MulticastGroupProtocol is a multicast group protocol whose core state machine -// can be represented by GenericMulticastProtocolState. -type MulticastGroupProtocol interface { - // Enabled indicates whether the generic multicast protocol will be - // performed. - // - // When enabled, the protocol may transmit report and leave messages when - // joining and leaving multicast groups respectively, and handle incoming - // packets. - // - // When disabled, the protocol will still keep track of locally joined groups, - // it just won't transmit and handle packets, or update groups' state. - Enabled() bool - - // SendReport sends a multicast report for the specified group address. - // - // Returns false if the caller should queue the report to be sent later. Note, - // returning false does not mean that the receiver hit an error. - SendReport(groupAddress tcpip.Address) (sent bool, err tcpip.Error) - - // SendLeave sends a multicast leave for the specified group address. - SendLeave(groupAddress tcpip.Address) tcpip.Error - - // ShouldPerformProtocol returns true iff the protocol should be performed for - // the specified group. - ShouldPerformProtocol(tcpip.Address) bool - - // NewReportV2Builder creates a new V2 builder. - NewReportV2Builder() MulticastGroupProtocolV2ReportBuilder - - // V2QueryMaxRespCodeToV2Delay takes a V2 query's maximum response code and - // returns the V2 delay. - V2QueryMaxRespCodeToV2Delay(code uint16) time.Duration - - // V2QueryMaxRespCodeToV1Delay takes a V2 query's maximum response code and - // returns the V1 delay. - V2QueryMaxRespCodeToV1Delay(code uint16) time.Duration -} - -type protocolMode int - -const ( - protocolModeV2 protocolMode = iota - protocolModeV1 - protocolModeV1Compatibility -) - -// GenericMulticastProtocolState is the per interface generic multicast protocol -// state. -// -// There is actually no protocol named "Generic Multicast Protocol". Instead, -// the term used to refer to a generic multicast protocol that applies to both -// IPv4 and IPv6. Specifically, Generic Multicast Protocol is the core state -// machine of IGMPv2 as defined by RFC 2236 and MLDv1 as defined by RFC 2710. -// -// Callers must synchronize accesses to the generic multicast protocol state; -// GenericMulticastProtocolState obtains no locks in any of its methods. The -// only exception to this is GenericMulticastProtocolState's timer/job callbacks -// which will obtain the lock provided to the GenericMulticastProtocolState when -// it is initialized. -// -// GenericMulticastProtocolState.Init MUST be called before calling any of -// the methods on GenericMulticastProtocolState. -// -// GenericMulticastProtocolState.MakeAllNonMemberLocked MUST be called when the -// multicast group protocol is disabled so that leave messages may be sent. -// -// +stateify savable -type GenericMulticastProtocolState struct { - // Do not allow overwriting this state. - _ sync.NoCopy `state:"nosave"` - - opts GenericMulticastProtocolOptions - - // memberships holds group addresses and their associated state. - memberships map[tcpip.Address]multicastGroupState - - // protocolMU is the mutex used to protect the protocol. - protocolMU *sync.RWMutex `state:"nosave"` - - // V2 state. - robustnessVariable uint8 - queryInterval time.Duration - mode protocolMode - modeTimer tcpip.Timer - - generalQueryV2Timer tcpip.Timer - // TODO(b/341946753): Restore when netstack is savable. - generalQueryV2TimerFiresAt time.Time `state:"nosave"` - - stateChangedReportV2Timer tcpip.Timer - stateChangedReportV2TimerSet bool -} - -// GetV1ModeLocked returns the V1 configuration. -// -// Precondition: g.protocolMU must be read locked. -func (g *GenericMulticastProtocolState) GetV1ModeLocked() bool { - switch g.mode { - case protocolModeV2, protocolModeV1Compatibility: - return false - case protocolModeV1: - return true - default: - panic(fmt.Sprintf("unrecognized mode = %d", g.mode)) - } -} - -func (g *GenericMulticastProtocolState) stopModeTimer() { - if g.modeTimer != nil { - g.modeTimer.Stop() - } -} - -// SetV1ModeLocked sets the V1 configuration. -// -// Returns the previous configuration. -// -// Precondition: g.protocolMU must be locked. -func (g *GenericMulticastProtocolState) SetV1ModeLocked(v bool) bool { - if g.GetV1ModeLocked() == v { - return v - } - - if v { - g.stopModeTimer() - g.cancelV2ReportTimers() - g.mode = protocolModeV1 - return false - } - - g.mode = protocolModeV2 - return true -} - -func (g *GenericMulticastProtocolState) cancelV2ReportTimers() { - if g.generalQueryV2Timer != nil { - g.generalQueryV2Timer.Stop() - g.generalQueryV2TimerFiresAt = time.Time{} - } - - if g.stateChangedReportV2Timer != nil { - g.stateChangedReportV2Timer.Stop() - g.stateChangedReportV2TimerSet = false - } -} - -// Init initializes the Generic Multicast Protocol state. -// -// Must only be called once for the lifetime of g; Init will panic if it is -// called twice. -// -// The GenericMulticastProtocolState will only grab the lock when timers/jobs -// fire. -// -// Note: the methods on opts.Protocol will always be called while protocolMU is -// held. -func (g *GenericMulticastProtocolState) Init(protocolMU *sync.RWMutex, opts GenericMulticastProtocolOptions) { - if g.memberships != nil { - panic("attempted to initialize generic membership protocol state twice") - } - - *g = GenericMulticastProtocolState{ - opts: opts, - memberships: make(map[tcpip.Address]multicastGroupState), - protocolMU: protocolMU, - robustnessVariable: DefaultRobustnessVariable, - queryInterval: DefaultQueryInterval, - mode: protocolModeV2, - } -} - -// MakeAllNonMemberLocked transitions all groups to the non-member state. -// -// The groups will still be considered joined locally. -// -// MUST be called when the multicast group protocol is disabled. -// -// Precondition: g.protocolMU must be locked. -func (g *GenericMulticastProtocolState) MakeAllNonMemberLocked() { - if !g.opts.Protocol.Enabled() { - return - } - - g.stopModeTimer() - g.cancelV2ReportTimers() - - var v2ReportBuilder MulticastGroupProtocolV2ReportBuilder - var handler func(tcpip.Address, *multicastGroupState) - switch g.mode { - case protocolModeV2: - v2ReportBuilder = g.opts.Protocol.NewReportV2Builder() - handler = func(groupAddress tcpip.Address, info *multicastGroupState) { - info.cancelDelayedReportJob() - - // Send a report immediately to announce us leaving the group. - v2ReportBuilder.AddRecord( - MulticastGroupProtocolV2ReportRecordChangeToIncludeMode, - groupAddress, - ) - } - case protocolModeV1Compatibility: - g.mode = protocolModeV2 - fallthrough - case protocolModeV1: - handler = g.transitionToNonMemberLocked - default: - panic(fmt.Sprintf("unrecognized mode = %d", g.mode)) - } - - for groupAddress, info := range g.memberships { - if !g.shouldPerformForGroup(groupAddress) { - continue - } - - handler(groupAddress, &info) - - if info.deleteScheduled { - delete(g.memberships, groupAddress) - } else { - info.transmissionLeft = 0 - g.memberships[groupAddress] = info - } - } - - if v2ReportBuilder != nil { - // Nothing meaningful we can do with the error here - this method may be - // called when an interface is being disabled when we expect sends to - // fail. - _, _ = v2ReportBuilder.Send() - } -} - -// InitializeGroupsLocked initializes each group, as if they were newly joined -// but without affecting the groups' join count. -// -// Must only be called after calling MakeAllNonMember as a group should not be -// initialized while it is not in the non-member state. -// -// Precondition: g.protocolMU must be locked. -func (g *GenericMulticastProtocolState) InitializeGroupsLocked() { - if !g.opts.Protocol.Enabled() { - return - } - - var v2ReportBuilder MulticastGroupProtocolV2ReportBuilder - switch g.mode { - case protocolModeV2: - v2ReportBuilder = g.opts.Protocol.NewReportV2Builder() - case protocolModeV1Compatibility, protocolModeV1: - default: - panic(fmt.Sprintf("unrecognized mode = %d", g.mode)) - } - - for groupAddress, info := range g.memberships { - g.initializeNewMemberLocked(groupAddress, &info, v2ReportBuilder) - g.memberships[groupAddress] = info - } - - if v2ReportBuilder == nil { - return - } - - if sent, err := v2ReportBuilder.Send(); sent && err == nil { - g.scheduleStateChangedTimer() - } else { - // Nothing meaningful we could do with the error here - the interface may - // not yet have an address. This is okay because we would either schedule a - // report to be sent later or we will be notified when an address is added, - // at which point we will try to send messages again. - for groupAddress, info := range g.memberships { - if !g.shouldPerformForGroup(groupAddress) { - continue - } - - // Revert the transmissions count since we did not successfully send. - info.transmissionLeft++ - g.memberships[groupAddress] = info - } - } -} - -// SendQueuedReportsLocked attempts to send reports for groups that failed to -// send reports during their last attempt. -// -// Precondition: g.protocolMU must be locked. -func (g *GenericMulticastProtocolState) SendQueuedReportsLocked() { - if g.stateChangedReportV2TimerSet { - return - } - - for groupAddress, info := range g.memberships { - if info.delayedReportJobFiresAt.IsZero() { - switch g.mode { - case protocolModeV2: - g.sendV2ReportAndMaybeScheduleChangedTimer(groupAddress, &info, MulticastGroupProtocolV2ReportRecordChangeToExcludeMode) - case protocolModeV1Compatibility, protocolModeV1: - g.maybeSendReportLocked(groupAddress, &info) - default: - panic(fmt.Sprintf("unrecognized mode = %d", g.mode)) - } - - g.memberships[groupAddress] = info - } - } -} - -// JoinGroupLocked handles joining a new group. -// -// Precondition: g.protocolMU must be locked. -func (g *GenericMulticastProtocolState) JoinGroupLocked(groupAddress tcpip.Address) { - info, ok := g.memberships[groupAddress] - if ok { - info.joins++ - if info.joins > 1 { - // The group has already been joined. - g.memberships[groupAddress] = info - return - } - } else { - info = multicastGroupState{ - // Since we just joined the group, its count is 1. - joins: 1, - lastToSendReport: false, - delayedReportJob: tcpip.NewJob(g.opts.Clock, g.protocolMU, func() { - if !g.opts.Protocol.Enabled() { - panic(fmt.Sprintf("delayed report job fired for group %s while the multicast group protocol is disabled", groupAddress)) - } - - info, ok := g.memberships[groupAddress] - if !ok { - panic(fmt.Sprintf("expected to find group state for group = %s", groupAddress)) - } - - info.delayedReportJobFiresAt = time.Time{} - - switch g.mode { - case protocolModeV2: - reportBuilder := g.opts.Protocol.NewReportV2Builder() - reportBuilder.AddRecord(MulticastGroupProtocolV2ReportRecordModeIsExclude, groupAddress) - // Nothing meaningful we can do with the error here - we only try to - // send a delayed report once. - _, _ = reportBuilder.Send() - case protocolModeV1Compatibility, protocolModeV1: - g.maybeSendReportLocked(groupAddress, &info) - default: - panic(fmt.Sprintf("unrecognized mode = %d", g.mode)) - } - - info.clearQueriedIncludeSources() - g.memberships[groupAddress] = info - }), - queriedIncludeSources: make(map[tcpip.Address]struct{}), - } - } - - info.deleteScheduled = false - info.clearQueriedIncludeSources() - info.delayedReportJobFiresAt = time.Time{} - info.lastToSendReport = false - g.initializeNewMemberLocked(groupAddress, &info, nil /* callersV2ReportBuilder */) - g.memberships[groupAddress] = info -} - -// IsLocallyJoinedRLocked returns true if the group is locally joined. -// -// Precondition: g.protocolMU must be read locked. -func (g *GenericMulticastProtocolState) IsLocallyJoinedRLocked(groupAddress tcpip.Address) bool { - info, ok := g.memberships[groupAddress] - return ok && !info.deleteScheduled -} - -func (g *GenericMulticastProtocolState) sendV2ReportAndMaybeScheduleChangedTimer( - groupAddress tcpip.Address, - info *multicastGroupState, - recordType MulticastGroupProtocolV2ReportRecordType, -) bool { - if info.transmissionLeft == 0 { - return false - } - - successfullySentAndHasMore := false - - // Send a report immediately to announce us leaving the group. - reportBuilder := g.opts.Protocol.NewReportV2Builder() - reportBuilder.AddRecord(recordType, groupAddress) - if sent, err := reportBuilder.Send(); sent && err == nil { - info.transmissionLeft-- - - successfullySentAndHasMore = info.transmissionLeft != 0 - - // Use the interface-wide state changed report for further transmissions. - if successfullySentAndHasMore { - g.scheduleStateChangedTimer() - } - } - - return successfullySentAndHasMore -} - -func (g *GenericMulticastProtocolState) scheduleStateChangedTimer() { - if g.stateChangedReportV2TimerSet { - return - } - - delay := g.calculateDelayTimerDuration(g.opts.MaxUnsolicitedReportDelay) - if g.stateChangedReportV2Timer == nil { - // TODO(https://issuetracker.google.com/264799098): Create timer on - // initialization instead of lazily creating the timer since the timer - // does not change after being created. - g.stateChangedReportV2Timer = g.opts.Clock.AfterFunc(delay, func() { - g.protocolMU.Lock() - defer g.protocolMU.Unlock() - - reportBuilder := g.opts.Protocol.NewReportV2Builder() - nonEmptyReport := false - for groupAddress, info := range g.memberships { - if info.transmissionLeft == 0 || !g.shouldPerformForGroup(groupAddress) { - continue - } - - info.transmissionLeft-- - nonEmptyReport = true - - mode := MulticastGroupProtocolV2ReportRecordChangeToExcludeMode - if info.deleteScheduled { - mode = MulticastGroupProtocolV2ReportRecordChangeToIncludeMode - } - reportBuilder.AddRecord(mode, groupAddress) - - if info.deleteScheduled && info.transmissionLeft == 0 { - // No more transmissions left so we can actually delete the - // membership. - delete(g.memberships, groupAddress) - } else { - g.memberships[groupAddress] = info - } - } - - // Nothing meaningful we can do with the error here. We will retry - // sending a state changed report again anyways. - _, _ = reportBuilder.Send() - - if nonEmptyReport { - g.stateChangedReportV2Timer.Reset(g.calculateDelayTimerDuration(g.opts.MaxUnsolicitedReportDelay)) - } else { - g.stateChangedReportV2TimerSet = false - } - }) - } else { - g.stateChangedReportV2Timer.Reset(delay) - } - g.stateChangedReportV2TimerSet = true -} - -// LeaveGroupLocked handles leaving the group. -// -// Returns false if the group is not currently joined. -// -// Precondition: g.protocolMU must be locked. -func (g *GenericMulticastProtocolState) LeaveGroupLocked(groupAddress tcpip.Address) bool { - info, ok := g.memberships[groupAddress] - if !ok || info.joins == 0 { - return false - } - - info.joins-- - if info.joins != 0 { - // If we still have outstanding joins, then do nothing further. - g.memberships[groupAddress] = info - return true - } - - info.deleteScheduled = true - info.cancelDelayedReportJob() - - if !g.shouldPerformForGroup(groupAddress) { - delete(g.memberships, groupAddress) - return true - } - - switch g.mode { - case protocolModeV2: - info.transmissionLeft = g.robustnessVariable - if g.sendV2ReportAndMaybeScheduleChangedTimer(groupAddress, &info, MulticastGroupProtocolV2ReportRecordChangeToIncludeMode) { - g.memberships[groupAddress] = info - } else { - delete(g.memberships, groupAddress) - } - case protocolModeV1Compatibility, protocolModeV1: - g.transitionToNonMemberLocked(groupAddress, &info) - delete(g.memberships, groupAddress) - default: - panic(fmt.Sprintf("unrecognized mode = %d", g.mode)) - } - - return true -} - -// HandleQueryV2Locked handles a V2 query. -// -// Precondition: g.protocolMU must be locked. -func (g *GenericMulticastProtocolState) HandleQueryV2Locked(groupAddress tcpip.Address, maxResponseCode uint16, sources header.AddressIterator, robustnessVariable uint8, queryInterval time.Duration) { - if !g.opts.Protocol.Enabled() { - return - } - - switch g.mode { - case protocolModeV1Compatibility, protocolModeV1: - g.handleQueryInnerLocked(groupAddress, g.opts.Protocol.V2QueryMaxRespCodeToV1Delay(maxResponseCode)) - return - case protocolModeV2: - default: - panic(fmt.Sprintf("unrecognized mode = %d", g.mode)) - } - - if robustnessVariable != 0 { - g.robustnessVariable = robustnessVariable - } - - if queryInterval != 0 { - g.queryInterval = queryInterval - } - - maxResponseTime := g.calculateDelayTimerDuration(g.opts.Protocol.V2QueryMaxRespCodeToV2Delay(maxResponseCode)) - - // As per RFC 3376 section 5.2, - // - // 1. If there is a pending response to a previous General Query - // scheduled sooner than the selected delay, no additional response - // needs to be scheduled. - // - // 2. If the received Query is a General Query, the interface timer is - // used to schedule a response to the General Query after the - // selected delay. Any previously pending response to a General - // Query is canceled. - // - // 3. If the received Query is a Group-Specific Query or a Group-and- - // Source-Specific Query and there is no pending response to a - // previous Query for this group, then the group timer is used to - // schedule a report. If the received Query is a Group-and-Source- - // Specific Query, the list of queried sources is recorded to be used - // when generating a response. - // - // 4. If there already is a pending response to a previous Query - // scheduled for this group, and either the new Query is a Group- - // Specific Query or the recorded source-list associated with the - // group is empty, then the group source-list is cleared and a single - // response is scheduled using the group timer. The new response is - // scheduled to be sent at the earliest of the remaining time for the - // pending report and the selected delay. - // - // 5. If the received Query is a Group-and-Source-Specific Query and - // there is a pending response for this group with a non-empty - // source-list, then the group source list is augmented to contain - // the list of sources in the new Query and a single response is - // scheduled using the group timer. The new response is scheduled to - // be sent at the earliest of the remaining time for the pending - // report and the selected delay. - // - // As per RFC 3810 section 6.2, - // - // 1. If there is a pending response to a previous General Query - // scheduled sooner than the selected delay, no additional response - // needs to be scheduled. - // - // 2. If the received Query is a General Query, the Interface Timer is - // used to schedule a response to the General Query after the - // selected delay. Any previously pending response to a General - // Query is canceled. - // - // 3. If the received Query is a Multicast Address Specific Query or a - // Multicast Address and Source Specific Query and there is no - // pending response to a previous Query for this multicast address, - // then the Multicast Address Timer is used to schedule a report. If - // the received Query is a Multicast Address and Source Specific - // Query, the list of queried sources is recorded to be used when - // generating a response. - // - // 4. If there is already a pending response to a previous Query - // scheduled for this multicast address, and either the new Query is - // a Multicast Address Specific Query or the recorded source list - // associated with the multicast address is empty, then the multicast - // address source list is cleared and a single response is scheduled, - // using the Multicast Address Timer. The new response is scheduled - // to be sent at the earliest of the remaining time for the pending - // report and the selected delay. - // - // 5. If the received Query is a Multicast Address and Source Specific - // Query and there is a pending response for this multicast address - // with a non-empty source list, then the multicast address source - // list is augmented to contain the list of sources in the new Query, - // and a single response is scheduled using the Multicast Address - // Timer. The new response is scheduled to be sent at the earliest - // of the remaining time for the pending report and the selected - // delay. - now := g.opts.Clock.Now() - if !g.generalQueryV2TimerFiresAt.IsZero() && g.generalQueryV2TimerFiresAt.Sub(now) <= maxResponseTime { - return - } - - if groupAddress.Unspecified() { - if g.generalQueryV2Timer == nil { - // TODO(https://issuetracker.google.com/264799098): Create timer on - // initialization instead of lazily creating the timer since the timer - // does not change after being created. - g.generalQueryV2Timer = g.opts.Clock.AfterFunc(maxResponseTime, func() { - g.protocolMU.Lock() - defer g.protocolMU.Unlock() - - g.generalQueryV2TimerFiresAt = time.Time{} - - // As per RFC 3810 section 6.3, - // - // If the expired timer is the Interface Timer (i.e., there is a - // pending response to a General Query), then one Current State - // Record is sent for each multicast address for which the specified - // interface has listening state, as described in section 4.2. The - // Current State Record carries the multicast address and its - // associated filter mode (MODE_IS_INCLUDE or MODE_IS_EXCLUDE) and - // Source list. Multiple Current State Records are packed into - // individual Report messages, to the extent possible. - // - // As per RFC 3376 section 5.2, - // - // If the expired timer is the interface timer (i.e., it is a pending - // response to a General Query), then one Current-State Record is - // sent for each multicast address for which the specified interface - // has reception state, as described in section 3.2. The Current- - // State Record carries the multicast address and its associated - // filter mode (MODE_IS_INCLUDE or MODE_IS_EXCLUDE) and source list. - // Multiple Current-State Records are packed into individual Report - // messages, to the extent possible. - reportBuilder := g.opts.Protocol.NewReportV2Builder() - for groupAddress, info := range g.memberships { - if info.deleteScheduled || !g.shouldPerformForGroup(groupAddress) { - continue - } - - // A MODE_IS_EXCLUDE record without any sources indicates that we are - // interested in traffic from all sources for the group. - // - // We currently only hold groups if we have an active interest in the - // group. - reportBuilder.AddRecord( - MulticastGroupProtocolV2ReportRecordModeIsExclude, - groupAddress, - ) - } - - _, _ = reportBuilder.Send() - }) - } else { - g.generalQueryV2Timer.Reset(maxResponseTime) - } - g.generalQueryV2TimerFiresAt = now.Add(maxResponseTime) - return - } - - if info, ok := g.memberships[groupAddress]; ok && !info.deleteScheduled && g.shouldPerformForGroup(groupAddress) { - if info.delayedReportJobFiresAt.IsZero() || (!sources.Done() && len(info.queriedIncludeSources) != 0) { - for { - source, ok := sources.Next() - if !ok { - break - } - - info.queriedIncludeSources[source] = struct{}{} - } - } else { - info.clearQueriedIncludeSources() - } - g.setDelayTimerForAddressLocked(groupAddress, &info, maxResponseTime) - g.memberships[groupAddress] = info - } -} - -// HandleQueryLocked handles a query message with the specified maximum response -// time. -// -// If the group address is unspecified, then reports will be scheduled for all -// joined groups. -// -// Report(s) will be scheduled to be sent after a random duration between 0 and -// the maximum response time. -// -// Precondition: g.protocolMU must be locked. -func (g *GenericMulticastProtocolState) HandleQueryLocked(groupAddress tcpip.Address, maxResponseTime time.Duration) { - if !g.opts.Protocol.Enabled() { - return - } - - switch g.mode { - case protocolModeV2, protocolModeV1Compatibility: - // As per 3376 section 8.12 (for IGMPv3), - // - // The Older Version Querier Interval is the time-out for transitioning - // a host back to IGMPv3 mode once an older version query is heard. - // When an older version query is received, hosts set their Older - // Version Querier Present Timer to Older Version Querier Interval. - // - // This value MUST be ((the Robustness Variable) times (the Query - // Interval in the last Query received)) plus (one Query Response - // Interval). - // - // As per RFC 3810 section 9.12 (for MLDv2), - // - // The Older Version Querier Present Timeout is the time-out for - // transitioning a host back to MLDv2 Host Compatibility Mode. When an - // MLDv1 query is received, MLDv2 hosts set their Older Version Querier - // Present Timer to [Older Version Querier Present Timeout]. - // - // This value MUST be ([Robustness Variable] times (the [Query Interval] - // in the last Query received)) plus ([Query Response Interval]). - modeRevertDelay := time.Duration(g.robustnessVariable) * g.queryInterval - if g.modeTimer == nil { - // TODO(https://issuetracker.google.com/264799098): Create timer on - // initialization instead of lazily creating the timer since the timer - // does not change after being created. - g.modeTimer = g.opts.Clock.AfterFunc(modeRevertDelay, func() { - g.protocolMU.Lock() - defer g.protocolMU.Unlock() - g.mode = protocolModeV2 - }) - } else { - g.modeTimer.Reset(modeRevertDelay) - } - g.mode = protocolModeV1Compatibility - g.cancelV2ReportTimers() - case protocolModeV1: - default: - panic(fmt.Sprintf("unrecognized mode = %d", g.mode)) - } - g.handleQueryInnerLocked(groupAddress, maxResponseTime) -} - -func (g *GenericMulticastProtocolState) handleQueryInnerLocked(groupAddress tcpip.Address, maxResponseTime time.Duration) { - maxResponseTime = g.calculateDelayTimerDuration(maxResponseTime) - - // As per RFC 2236 section 2.4 (for IGMPv2), - // - // In a Membership Query message, the group address field is set to zero - // when sending a General Query, and set to the group address being - // queried when sending a Group-Specific Query. - // - // As per RFC 2710 section 3.6 (for MLDv1), - // - // In a Query message, the Multicast Address field is set to zero when - // sending a General Query, and set to a specific IPv6 multicast address - // when sending a Multicast-Address-Specific Query. - if groupAddress.Unspecified() { - // This is a general query as the group address is unspecified. - for groupAddress, info := range g.memberships { - g.setDelayTimerForAddressLocked(groupAddress, &info, maxResponseTime) - g.memberships[groupAddress] = info - } - } else if info, ok := g.memberships[groupAddress]; ok && !info.deleteScheduled { - g.setDelayTimerForAddressLocked(groupAddress, &info, maxResponseTime) - g.memberships[groupAddress] = info - } -} - -// HandleReportLocked handles a report message. -// -// If the report is for a joined group, any active delayed report will be -// cancelled and the host state for the group transitions to idle. -// -// Precondition: g.protocolMU must be locked. -func (g *GenericMulticastProtocolState) HandleReportLocked(groupAddress tcpip.Address) { - if !g.opts.Protocol.Enabled() { - return - } - - // As per RFC 2236 section 3 pages 3-4 (for IGMPv2), - // - // If the host receives another host's Report (version 1 or 2) while it has - // a timer running, it stops its timer for the specified group and does not - // send a Report - // - // As per RFC 2710 section 4 page 6 (for MLDv1), - // - // If a node receives another node's Report from an interface for a - // multicast address while it has a timer running for that same address - // on that interface, it stops its timer and does not send a Report for - // that address, thus suppressing duplicate reports on the link. - if info, ok := g.memberships[groupAddress]; ok { - info.cancelDelayedReportJob() - info.lastToSendReport = false - g.memberships[groupAddress] = info - } -} - -// initializeNewMemberLocked initializes a new group membership. -// -// Precondition: g.protocolMU must be locked. -func (g *GenericMulticastProtocolState) initializeNewMemberLocked(groupAddress tcpip.Address, info *multicastGroupState, callersV2ReportBuilder MulticastGroupProtocolV2ReportBuilder) { - if !g.shouldPerformForGroup(groupAddress) { - return - } - - info.lastToSendReport = false - - switch g.mode { - case protocolModeV2: - info.transmissionLeft = g.robustnessVariable - if callersV2ReportBuilder == nil { - g.sendV2ReportAndMaybeScheduleChangedTimer(groupAddress, info, MulticastGroupProtocolV2ReportRecordChangeToExcludeMode) - } else { - callersV2ReportBuilder.AddRecord(MulticastGroupProtocolV2ReportRecordChangeToExcludeMode, groupAddress) - info.transmissionLeft-- - } - case protocolModeV1Compatibility, protocolModeV1: - info.transmissionLeft = unsolicitedTransmissionCount - g.maybeSendReportLocked(groupAddress, info) - default: - panic(fmt.Sprintf("unrecognized mode = %d", g.mode)) - } -} - -func (g *GenericMulticastProtocolState) shouldPerformForGroup(groupAddress tcpip.Address) bool { - return g.opts.Protocol.ShouldPerformProtocol(groupAddress) && g.opts.Protocol.Enabled() -} - -// maybeSendReportLocked attempts to send a report for a group. -// -// Precondition: g.protocolMU must be locked. -func (g *GenericMulticastProtocolState) maybeSendReportLocked(groupAddress tcpip.Address, info *multicastGroupState) { - if info.transmissionLeft == 0 { - return - } - - // As per RFC 2236 section 3 page 5 (for IGMPv2), - // - // When a host joins a multicast group, it should immediately transmit an - // unsolicited Version 2 Membership Report for that group" ... "it is - // recommended that it be repeated". - // - // As per RFC 2710 section 4 page 6 (for MLDv1), - // - // When a node starts listening to a multicast address on an interface, - // it should immediately transmit an unsolicited Report for that address - // on that interface, in case it is the first listener on the link. To - // cover the possibility of the initial Report being lost or damaged, it - // is recommended that it be repeated once or twice after short delays - // [Unsolicited Report Interval]. - // - // TODO(gvisor.dev/issue/4901): Support a configurable number of initial - // unsolicited reports. - sent, err := g.opts.Protocol.SendReport(groupAddress) - if err == nil && sent { - info.lastToSendReport = true - - info.transmissionLeft-- - if info.transmissionLeft > 0 { - g.setDelayTimerForAddressLocked( - groupAddress, - info, - g.calculateDelayTimerDuration(g.opts.MaxUnsolicitedReportDelay), - ) - } - } -} - -// maybeSendLeave attempts to send a leave message. -func (g *GenericMulticastProtocolState) maybeSendLeave(groupAddress tcpip.Address, lastToSendReport bool) { - if !g.shouldPerformForGroup(groupAddress) || !lastToSendReport { - return - } - - // Okay to ignore the error here as if packet write failed, the multicast - // routers will eventually drop our membership anyways. If the interface is - // being disabled or removed, the generic multicast protocol's should be - // cleared eventually. - // - // As per RFC 2236 section 3 page 5 (for IGMPv2), - // - // When a router receives a Report, it adds the group being reported to - // the list of multicast group memberships on the network on which it - // received the Report and sets the timer for the membership to the - // [Group Membership Interval]. Repeated Reports refresh the timer. If - // no Reports are received for a particular group before this timer has - // expired, the router assumes that the group has no local members and - // that it need not forward remotely-originated multicasts for that - // group onto the attached network. - // - // As per RFC 2710 section 4 page 5 (for MLDv1), - // - // When a router receives a Report from a link, if the reported address - // is not already present in the router's list of multicast address - // having listeners on that link, the reported address is added to the - // list, its timer is set to [Multicast Listener Interval], and its - // appearance is made known to the router's multicast routing component. - // If a Report is received for a multicast address that is already - // present in the router's list, the timer for that address is reset to - // [Multicast Listener Interval]. If an address's timer expires, it is - // assumed that there are no longer any listeners for that address - // present on the link, so it is deleted from the list and its - // disappearance is made known to the multicast routing component. - // - // The requirement to send a leave message is also optional (it MAY be - // skipped): - // - // As per RFC 2236 section 6 page 8 (for IGMPv2), - // - // "send leave" for the group on the interface. If the interface - // state says the Querier is running IGMPv1, this action SHOULD be - // skipped. If the flag saying we were the last host to report is - // cleared, this action MAY be skipped. The Leave Message is sent to - // the ALL-ROUTERS group (224.0.0.2). - // - // As per RFC 2710 section 5 page 8 (for MLDv1), - // - // "send done" for the address on the interface. If the flag saying - // we were the last node to report is cleared, this action MAY be - // skipped. The Done message is sent to the link-scope all-routers - // address (FF02::2). - _ = g.opts.Protocol.SendLeave(groupAddress) -} - -// transitionToNonMemberLocked transitions the given multicast group the the -// non-member/listener state. -// -// Precondition: g.protocolMU must be locked. -func (g *GenericMulticastProtocolState) transitionToNonMemberLocked(groupAddress tcpip.Address, info *multicastGroupState) { - info.cancelDelayedReportJob() - g.maybeSendLeave(groupAddress, info.lastToSendReport) - info.lastToSendReport = false -} - -// setDelayTimerForAddressLocked sets timer to send a delayed report. -// -// Precondition: g.protocolMU MUST be locked. -func (g *GenericMulticastProtocolState) setDelayTimerForAddressLocked(groupAddress tcpip.Address, info *multicastGroupState, maxResponseTime time.Duration) { - if !g.shouldPerformForGroup(groupAddress) { - return - } - - if info.transmissionLeft < minQueryResponseTransmissionCount { - info.transmissionLeft = minQueryResponseTransmissionCount - } - - // As per RFC 2236 section 3 page 3 (for IGMPv2), - // - // If a timer for the group is already running, it is reset to the random - // value only if the requested Max Response Time is less than the remaining - // value of the running timer. - // - // As per RFC 2710 section 4 page 5 (for MLDv1), - // - // If a timer for any address is already running, it is reset to the new - // random value only if the requested Maximum Response Delay is less than - // the remaining value of the running timer. - now := g.opts.Clock.Now() - if !info.delayedReportJobFiresAt.IsZero() && info.delayedReportJobFiresAt.Sub(now) <= maxResponseTime { - // The timer is scheduled to fire before the maximum response time so we - // leave our timer as is. - return - } - - info.delayedReportJob.Cancel() - info.delayedReportJob.Schedule(maxResponseTime) - info.delayedReportJobFiresAt = now.Add(maxResponseTime) -} - -// calculateDelayTimerDuration returns a random time between (0, maxRespTime]. -func (g *GenericMulticastProtocolState) calculateDelayTimerDuration(maxRespTime time.Duration) time.Duration { - // As per RFC 2236 section 3 page 3 (for IGMPv2), - // - // When a host receives a Group-Specific Query, it sets a delay timer to a - // random value selected from the range (0, Max Response Time]... - // - // As per RFC 2710 section 4 page 6 (for MLDv1), - // - // When a node receives a Multicast-Address-Specific Query, if it is - // listening to the queried Multicast Address on the interface from - // which the Query was received, it sets a delay timer for that address - // to a random value selected from the range [0, Maximum Response Delay], - // as above. - if maxRespTime == 0 { - return 0 - } - return time.Duration(g.opts.Rand.Int63n(int64(maxRespTime))) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/ip/ip_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/ip/ip_state_autogen.go deleted file mode 100644 index 96a7a77a54..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/ip/ip_state_autogen.go +++ /dev/null @@ -1,432 +0,0 @@ -// automatically generated by stateify. - -package ip - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (d *dadState) StateTypeName() string { - return "pkg/tcpip/network/internal/ip.dadState" -} - -func (d *dadState) StateFields() []string { - return []string{ - "nonce", - "extendRequest", - "done", - "timer", - "completionHandlers", - } -} - -func (d *dadState) beforeSave() {} - -// +checklocksignore -func (d *dadState) StateSave(stateSinkObject state.Sink) { - d.beforeSave() - stateSinkObject.Save(0, &d.nonce) - stateSinkObject.Save(1, &d.extendRequest) - stateSinkObject.Save(2, &d.done) - stateSinkObject.Save(3, &d.timer) - stateSinkObject.Save(4, &d.completionHandlers) -} - -func (d *dadState) afterLoad(context.Context) {} - -// +checklocksignore -func (d *dadState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &d.nonce) - stateSourceObject.Load(1, &d.extendRequest) - stateSourceObject.Load(2, &d.done) - stateSourceObject.Load(3, &d.timer) - stateSourceObject.Load(4, &d.completionHandlers) -} - -func (d *DADOptions) StateTypeName() string { - return "pkg/tcpip/network/internal/ip.DADOptions" -} - -func (d *DADOptions) StateFields() []string { - return []string{ - "Clock", - "NonceSize", - "ExtendDADTransmits", - "Protocol", - "NICID", - } -} - -func (d *DADOptions) beforeSave() {} - -// +checklocksignore -func (d *DADOptions) StateSave(stateSinkObject state.Sink) { - d.beforeSave() - stateSinkObject.Save(0, &d.Clock) - stateSinkObject.Save(1, &d.NonceSize) - stateSinkObject.Save(2, &d.ExtendDADTransmits) - stateSinkObject.Save(3, &d.Protocol) - stateSinkObject.Save(4, &d.NICID) -} - -func (d *DADOptions) afterLoad(context.Context) {} - -// +checklocksignore -func (d *DADOptions) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &d.Clock) - stateSourceObject.Load(1, &d.NonceSize) - stateSourceObject.Load(2, &d.ExtendDADTransmits) - stateSourceObject.Load(3, &d.Protocol) - stateSourceObject.Load(4, &d.NICID) -} - -func (d *DAD) StateTypeName() string { - return "pkg/tcpip/network/internal/ip.DAD" -} - -func (d *DAD) StateFields() []string { - return []string{ - "opts", - "configs", - "addresses", - } -} - -func (d *DAD) beforeSave() {} - -// +checklocksignore -func (d *DAD) StateSave(stateSinkObject state.Sink) { - d.beforeSave() - stateSinkObject.Save(0, &d.opts) - stateSinkObject.Save(1, &d.configs) - stateSinkObject.Save(2, &d.addresses) -} - -func (d *DAD) afterLoad(context.Context) {} - -// +checklocksignore -func (d *DAD) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &d.opts) - stateSourceObject.Load(1, &d.configs) - stateSourceObject.Load(2, &d.addresses) -} - -func (e *ErrMessageTooLong) StateTypeName() string { - return "pkg/tcpip/network/internal/ip.ErrMessageTooLong" -} - -func (e *ErrMessageTooLong) StateFields() []string { - return []string{} -} - -func (e *ErrMessageTooLong) beforeSave() {} - -// +checklocksignore -func (e *ErrMessageTooLong) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrMessageTooLong) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrMessageTooLong) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrNoMulticastPendingQueueBufferSpace) StateTypeName() string { - return "pkg/tcpip/network/internal/ip.ErrNoMulticastPendingQueueBufferSpace" -} - -func (e *ErrNoMulticastPendingQueueBufferSpace) StateFields() []string { - return []string{} -} - -func (e *ErrNoMulticastPendingQueueBufferSpace) beforeSave() {} - -// +checklocksignore -func (e *ErrNoMulticastPendingQueueBufferSpace) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrNoMulticastPendingQueueBufferSpace) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrNoMulticastPendingQueueBufferSpace) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (m *multicastGroupState) StateTypeName() string { - return "pkg/tcpip/network/internal/ip.multicastGroupState" -} - -func (m *multicastGroupState) StateFields() []string { - return []string{ - "joins", - "transmissionLeft", - "lastToSendReport", - "delayedReportJob", - "queriedIncludeSources", - "deleteScheduled", - } -} - -func (m *multicastGroupState) beforeSave() {} - -// +checklocksignore -func (m *multicastGroupState) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.joins) - stateSinkObject.Save(1, &m.transmissionLeft) - stateSinkObject.Save(2, &m.lastToSendReport) - stateSinkObject.Save(3, &m.delayedReportJob) - stateSinkObject.Save(4, &m.queriedIncludeSources) - stateSinkObject.Save(5, &m.deleteScheduled) -} - -func (m *multicastGroupState) afterLoad(context.Context) {} - -// +checklocksignore -func (m *multicastGroupState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.joins) - stateSourceObject.Load(1, &m.transmissionLeft) - stateSourceObject.Load(2, &m.lastToSendReport) - stateSourceObject.Load(3, &m.delayedReportJob) - stateSourceObject.Load(4, &m.queriedIncludeSources) - stateSourceObject.Load(5, &m.deleteScheduled) -} - -func (g *GenericMulticastProtocolOptions) StateTypeName() string { - return "pkg/tcpip/network/internal/ip.GenericMulticastProtocolOptions" -} - -func (g *GenericMulticastProtocolOptions) StateFields() []string { - return []string{ - "Clock", - "Protocol", - "MaxUnsolicitedReportDelay", - } -} - -func (g *GenericMulticastProtocolOptions) beforeSave() {} - -// +checklocksignore -func (g *GenericMulticastProtocolOptions) StateSave(stateSinkObject state.Sink) { - g.beforeSave() - stateSinkObject.Save(0, &g.Clock) - stateSinkObject.Save(1, &g.Protocol) - stateSinkObject.Save(2, &g.MaxUnsolicitedReportDelay) -} - -func (g *GenericMulticastProtocolOptions) afterLoad(context.Context) {} - -// +checklocksignore -func (g *GenericMulticastProtocolOptions) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &g.Clock) - stateSourceObject.Load(1, &g.Protocol) - stateSourceObject.Load(2, &g.MaxUnsolicitedReportDelay) -} - -func (g *GenericMulticastProtocolState) StateTypeName() string { - return "pkg/tcpip/network/internal/ip.GenericMulticastProtocolState" -} - -func (g *GenericMulticastProtocolState) StateFields() []string { - return []string{ - "opts", - "memberships", - "robustnessVariable", - "queryInterval", - "mode", - "modeTimer", - "generalQueryV2Timer", - "stateChangedReportV2Timer", - "stateChangedReportV2TimerSet", - } -} - -func (g *GenericMulticastProtocolState) beforeSave() {} - -// +checklocksignore -func (g *GenericMulticastProtocolState) StateSave(stateSinkObject state.Sink) { - g.beforeSave() - stateSinkObject.Save(0, &g.opts) - stateSinkObject.Save(1, &g.memberships) - stateSinkObject.Save(2, &g.robustnessVariable) - stateSinkObject.Save(3, &g.queryInterval) - stateSinkObject.Save(4, &g.mode) - stateSinkObject.Save(5, &g.modeTimer) - stateSinkObject.Save(6, &g.generalQueryV2Timer) - stateSinkObject.Save(7, &g.stateChangedReportV2Timer) - stateSinkObject.Save(8, &g.stateChangedReportV2TimerSet) -} - -func (g *GenericMulticastProtocolState) afterLoad(context.Context) {} - -// +checklocksignore -func (g *GenericMulticastProtocolState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &g.opts) - stateSourceObject.Load(1, &g.memberships) - stateSourceObject.Load(2, &g.robustnessVariable) - stateSourceObject.Load(3, &g.queryInterval) - stateSourceObject.Load(4, &g.mode) - stateSourceObject.Load(5, &g.modeTimer) - stateSourceObject.Load(6, &g.generalQueryV2Timer) - stateSourceObject.Load(7, &g.stateChangedReportV2Timer) - stateSourceObject.Load(8, &g.stateChangedReportV2TimerSet) -} - -func (m *MultiCounterIPForwardingStats) StateTypeName() string { - return "pkg/tcpip/network/internal/ip.MultiCounterIPForwardingStats" -} - -func (m *MultiCounterIPForwardingStats) StateFields() []string { - return []string{ - "Unrouteable", - "ExhaustedTTL", - "InitializingSource", - "LinkLocalSource", - "LinkLocalDestination", - "PacketTooBig", - "HostUnreachable", - "ExtensionHeaderProblem", - "UnexpectedMulticastInputInterface", - "UnknownOutputEndpoint", - "NoMulticastPendingQueueBufferSpace", - "OutgoingDeviceNoBufferSpace", - "Errors", - } -} - -func (m *MultiCounterIPForwardingStats) beforeSave() {} - -// +checklocksignore -func (m *MultiCounterIPForwardingStats) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.Unrouteable) - stateSinkObject.Save(1, &m.ExhaustedTTL) - stateSinkObject.Save(2, &m.InitializingSource) - stateSinkObject.Save(3, &m.LinkLocalSource) - stateSinkObject.Save(4, &m.LinkLocalDestination) - stateSinkObject.Save(5, &m.PacketTooBig) - stateSinkObject.Save(6, &m.HostUnreachable) - stateSinkObject.Save(7, &m.ExtensionHeaderProblem) - stateSinkObject.Save(8, &m.UnexpectedMulticastInputInterface) - stateSinkObject.Save(9, &m.UnknownOutputEndpoint) - stateSinkObject.Save(10, &m.NoMulticastPendingQueueBufferSpace) - stateSinkObject.Save(11, &m.OutgoingDeviceNoBufferSpace) - stateSinkObject.Save(12, &m.Errors) -} - -func (m *MultiCounterIPForwardingStats) afterLoad(context.Context) {} - -// +checklocksignore -func (m *MultiCounterIPForwardingStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.Unrouteable) - stateSourceObject.Load(1, &m.ExhaustedTTL) - stateSourceObject.Load(2, &m.InitializingSource) - stateSourceObject.Load(3, &m.LinkLocalSource) - stateSourceObject.Load(4, &m.LinkLocalDestination) - stateSourceObject.Load(5, &m.PacketTooBig) - stateSourceObject.Load(6, &m.HostUnreachable) - stateSourceObject.Load(7, &m.ExtensionHeaderProblem) - stateSourceObject.Load(8, &m.UnexpectedMulticastInputInterface) - stateSourceObject.Load(9, &m.UnknownOutputEndpoint) - stateSourceObject.Load(10, &m.NoMulticastPendingQueueBufferSpace) - stateSourceObject.Load(11, &m.OutgoingDeviceNoBufferSpace) - stateSourceObject.Load(12, &m.Errors) -} - -func (m *MultiCounterIPStats) StateTypeName() string { - return "pkg/tcpip/network/internal/ip.MultiCounterIPStats" -} - -func (m *MultiCounterIPStats) StateFields() []string { - return []string{ - "PacketsReceived", - "ValidPacketsReceived", - "DisabledPacketsReceived", - "InvalidDestinationAddressesReceived", - "InvalidSourceAddressesReceived", - "PacketsDelivered", - "PacketsSent", - "OutgoingPacketErrors", - "MalformedPacketsReceived", - "MalformedFragmentsReceived", - "IPTablesPreroutingDropped", - "IPTablesInputDropped", - "IPTablesForwardDropped", - "IPTablesOutputDropped", - "IPTablesPostroutingDropped", - "OptionTimestampReceived", - "OptionRecordRouteReceived", - "OptionRouterAlertReceived", - "OptionUnknownReceived", - "Forwarding", - } -} - -func (m *MultiCounterIPStats) beforeSave() {} - -// +checklocksignore -func (m *MultiCounterIPStats) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.PacketsReceived) - stateSinkObject.Save(1, &m.ValidPacketsReceived) - stateSinkObject.Save(2, &m.DisabledPacketsReceived) - stateSinkObject.Save(3, &m.InvalidDestinationAddressesReceived) - stateSinkObject.Save(4, &m.InvalidSourceAddressesReceived) - stateSinkObject.Save(5, &m.PacketsDelivered) - stateSinkObject.Save(6, &m.PacketsSent) - stateSinkObject.Save(7, &m.OutgoingPacketErrors) - stateSinkObject.Save(8, &m.MalformedPacketsReceived) - stateSinkObject.Save(9, &m.MalformedFragmentsReceived) - stateSinkObject.Save(10, &m.IPTablesPreroutingDropped) - stateSinkObject.Save(11, &m.IPTablesInputDropped) - stateSinkObject.Save(12, &m.IPTablesForwardDropped) - stateSinkObject.Save(13, &m.IPTablesOutputDropped) - stateSinkObject.Save(14, &m.IPTablesPostroutingDropped) - stateSinkObject.Save(15, &m.OptionTimestampReceived) - stateSinkObject.Save(16, &m.OptionRecordRouteReceived) - stateSinkObject.Save(17, &m.OptionRouterAlertReceived) - stateSinkObject.Save(18, &m.OptionUnknownReceived) - stateSinkObject.Save(19, &m.Forwarding) -} - -func (m *MultiCounterIPStats) afterLoad(context.Context) {} - -// +checklocksignore -func (m *MultiCounterIPStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.PacketsReceived) - stateSourceObject.Load(1, &m.ValidPacketsReceived) - stateSourceObject.Load(2, &m.DisabledPacketsReceived) - stateSourceObject.Load(3, &m.InvalidDestinationAddressesReceived) - stateSourceObject.Load(4, &m.InvalidSourceAddressesReceived) - stateSourceObject.Load(5, &m.PacketsDelivered) - stateSourceObject.Load(6, &m.PacketsSent) - stateSourceObject.Load(7, &m.OutgoingPacketErrors) - stateSourceObject.Load(8, &m.MalformedPacketsReceived) - stateSourceObject.Load(9, &m.MalformedFragmentsReceived) - stateSourceObject.Load(10, &m.IPTablesPreroutingDropped) - stateSourceObject.Load(11, &m.IPTablesInputDropped) - stateSourceObject.Load(12, &m.IPTablesForwardDropped) - stateSourceObject.Load(13, &m.IPTablesOutputDropped) - stateSourceObject.Load(14, &m.IPTablesPostroutingDropped) - stateSourceObject.Load(15, &m.OptionTimestampReceived) - stateSourceObject.Load(16, &m.OptionRecordRouteReceived) - stateSourceObject.Load(17, &m.OptionRouterAlertReceived) - stateSourceObject.Load(18, &m.OptionUnknownReceived) - stateSourceObject.Load(19, &m.Forwarding) -} - -func init() { - state.Register((*dadState)(nil)) - state.Register((*DADOptions)(nil)) - state.Register((*DAD)(nil)) - state.Register((*ErrMessageTooLong)(nil)) - state.Register((*ErrNoMulticastPendingQueueBufferSpace)(nil)) - state.Register((*multicastGroupState)(nil)) - state.Register((*GenericMulticastProtocolOptions)(nil)) - state.Register((*GenericMulticastProtocolState)(nil)) - state.Register((*MultiCounterIPForwardingStats)(nil)) - state.Register((*MultiCounterIPStats)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/ip/stats.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/ip/stats.go deleted file mode 100644 index 85990f5da7..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/ip/stats.go +++ /dev/null @@ -1,214 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package ip - -import "gvisor.dev/gvisor/pkg/tcpip" - -// LINT.IfChange(MultiCounterIPForwardingStats) - -// MultiCounterIPForwardingStats holds IP forwarding statistics. Each counter -// may have several versions. -// -// +stateify savable -type MultiCounterIPForwardingStats struct { - // Unrouteable is the number of IP packets received which were dropped - // because the netstack could not construct a route to their - // destination. - Unrouteable tcpip.MultiCounterStat - - // ExhaustedTTL is the number of IP packets received which were dropped - // because their TTL was exhausted. - ExhaustedTTL tcpip.MultiCounterStat - - // InitializingSource is the number of IP packets which were dropped - // because they contained a source address that may only be used on the local - // network as part of initialization work. - InitializingSource tcpip.MultiCounterStat - - // LinkLocalSource is the number of IP packets which were dropped - // because they contained a link-local source address. - LinkLocalSource tcpip.MultiCounterStat - - // LinkLocalDestination is the number of IP packets which were dropped - // because they contained a link-local destination address. - LinkLocalDestination tcpip.MultiCounterStat - - // PacketTooBig is the number of IP packets which were dropped because they - // were too big for the outgoing MTU. - PacketTooBig tcpip.MultiCounterStat - - // HostUnreachable is the number of IP packets received which could not be - // successfully forwarded due to an unresolvable next hop. - HostUnreachable tcpip.MultiCounterStat - - // ExtensionHeaderProblem is the number of IP packets which were dropped - // because of a problem encountered when processing an IPv6 extension - // header. - ExtensionHeaderProblem tcpip.MultiCounterStat - - // UnexpectedMulticastInputInterface is the number of multicast packets that - // were received on an interface that did not match the corresponding route's - // expected input interface. - UnexpectedMulticastInputInterface tcpip.MultiCounterStat - - // UnknownOutputEndpoint is the number of packets that could not be forwarded - // because the output endpoint could not be found. - UnknownOutputEndpoint tcpip.MultiCounterStat - - // NoMulticastPendingQueueBufferSpace is the number of multicast packets that - // were dropped due to insufficient buffer space in the pending packet queue. - NoMulticastPendingQueueBufferSpace tcpip.MultiCounterStat - - // OutgoingDeviceNoBufferSpace is the number of packets that were dropped due - // to insufficient space in the outgoing device. - OutgoingDeviceNoBufferSpace tcpip.MultiCounterStat - - // Errors is the number of IP packets received which could not be - // successfully forwarded. - Errors tcpip.MultiCounterStat -} - -// Init sets internal counters to track a and b counters. -func (m *MultiCounterIPForwardingStats) Init(a, b *tcpip.IPForwardingStats) { - m.Unrouteable.Init(a.Unrouteable, b.Unrouteable) - m.Errors.Init(a.Errors, b.Errors) - m.InitializingSource.Init(a.InitializingSource, b.InitializingSource) - m.LinkLocalSource.Init(a.LinkLocalSource, b.LinkLocalSource) - m.LinkLocalDestination.Init(a.LinkLocalDestination, b.LinkLocalDestination) - m.ExtensionHeaderProblem.Init(a.ExtensionHeaderProblem, b.ExtensionHeaderProblem) - m.PacketTooBig.Init(a.PacketTooBig, b.PacketTooBig) - m.ExhaustedTTL.Init(a.ExhaustedTTL, b.ExhaustedTTL) - m.HostUnreachable.Init(a.HostUnreachable, b.HostUnreachable) - m.UnexpectedMulticastInputInterface.Init(a.UnexpectedMulticastInputInterface, b.UnexpectedMulticastInputInterface) - m.UnknownOutputEndpoint.Init(a.UnknownOutputEndpoint, b.UnknownOutputEndpoint) - m.NoMulticastPendingQueueBufferSpace.Init(a.NoMulticastPendingQueueBufferSpace, b.NoMulticastPendingQueueBufferSpace) - m.OutgoingDeviceNoBufferSpace.Init(a.OutgoingDeviceNoBufferSpace, b.OutgoingDeviceNoBufferSpace) -} - -// LINT.ThenChange(:MultiCounterIPForwardingStats, ../../../tcpip.go:IPForwardingStats) - -// LINT.IfChange(MultiCounterIPStats) - -// MultiCounterIPStats holds IP statistics, each counter may have several -// versions. -// -// +stateify savable -type MultiCounterIPStats struct { - // PacketsReceived is the number of IP packets received from the link - // layer. - PacketsReceived tcpip.MultiCounterStat - - // ValidPacketsReceived is the number of valid IP packets that reached the IP - // layer. - ValidPacketsReceived tcpip.MultiCounterStat - - // DisabledPacketsReceived is the number of IP packets received from - // the link layer when the IP layer is disabled. - DisabledPacketsReceived tcpip.MultiCounterStat - - // InvalidDestinationAddressesReceived is the number of IP packets - // received with an unknown or invalid destination address. - InvalidDestinationAddressesReceived tcpip.MultiCounterStat - - // InvalidSourceAddressesReceived is the number of IP packets received - // with a source address that should never have been received on the - // wire. - InvalidSourceAddressesReceived tcpip.MultiCounterStat - - // PacketsDelivered is the number of incoming IP packets successfully - // delivered to the transport layer. - PacketsDelivered tcpip.MultiCounterStat - - // PacketsSent is the number of IP packets sent via WritePacket. - PacketsSent tcpip.MultiCounterStat - - // OutgoingPacketErrors is the number of IP packets which failed to - // write to a link-layer endpoint. - OutgoingPacketErrors tcpip.MultiCounterStat - - // MalformedPacketsReceived is the number of IP Packets that were - // dropped due to the IP packet header failing validation checks. - MalformedPacketsReceived tcpip.MultiCounterStat - - // MalformedFragmentsReceived is the number of IP Fragments that were - // dropped due to the fragment failing validation checks. - MalformedFragmentsReceived tcpip.MultiCounterStat - - // IPTablesPreroutingDropped is the number of IP packets dropped in the - // Prerouting chain. - IPTablesPreroutingDropped tcpip.MultiCounterStat - - // IPTablesInputDropped is the number of IP packets dropped in the - // Input chain. - IPTablesInputDropped tcpip.MultiCounterStat - - // IPTablesForwardDropped is the number of IP packets dropped in the - // Forward chain. - IPTablesForwardDropped tcpip.MultiCounterStat - - // IPTablesOutputDropped is the number of IP packets dropped in the - // Output chain. - IPTablesOutputDropped tcpip.MultiCounterStat - - // IPTablesPostroutingDropped is the number of IP packets dropped in - // the Postrouting chain. - IPTablesPostroutingDropped tcpip.MultiCounterStat - - // TODO(https://gvisor.dev/issues/5529): Move the IPv4-only option - // stats out of IPStats. - - // OptionTimestampReceived is the number of Timestamp options seen. - OptionTimestampReceived tcpip.MultiCounterStat - - // OptionRecordRouteReceived is the number of Record Route options - // seen. - OptionRecordRouteReceived tcpip.MultiCounterStat - - // OptionRouterAlertReceived is the number of Router Alert options - // seen. - OptionRouterAlertReceived tcpip.MultiCounterStat - - // OptionUnknownReceived is the number of unknown IP options seen. - OptionUnknownReceived tcpip.MultiCounterStat - - // Forwarding collects stats related to IP forwarding. - Forwarding MultiCounterIPForwardingStats -} - -// Init sets internal counters to track a and b counters. -func (m *MultiCounterIPStats) Init(a, b *tcpip.IPStats) { - m.PacketsReceived.Init(a.PacketsReceived, b.PacketsReceived) - m.ValidPacketsReceived.Init(a.ValidPacketsReceived, b.ValidPacketsReceived) - m.DisabledPacketsReceived.Init(a.DisabledPacketsReceived, b.DisabledPacketsReceived) - m.InvalidDestinationAddressesReceived.Init(a.InvalidDestinationAddressesReceived, b.InvalidDestinationAddressesReceived) - m.InvalidSourceAddressesReceived.Init(a.InvalidSourceAddressesReceived, b.InvalidSourceAddressesReceived) - m.PacketsDelivered.Init(a.PacketsDelivered, b.PacketsDelivered) - m.PacketsSent.Init(a.PacketsSent, b.PacketsSent) - m.OutgoingPacketErrors.Init(a.OutgoingPacketErrors, b.OutgoingPacketErrors) - m.MalformedPacketsReceived.Init(a.MalformedPacketsReceived, b.MalformedPacketsReceived) - m.MalformedFragmentsReceived.Init(a.MalformedFragmentsReceived, b.MalformedFragmentsReceived) - m.IPTablesPreroutingDropped.Init(a.IPTablesPreroutingDropped, b.IPTablesPreroutingDropped) - m.IPTablesInputDropped.Init(a.IPTablesInputDropped, b.IPTablesInputDropped) - m.IPTablesForwardDropped.Init(a.IPTablesForwardDropped, b.IPTablesForwardDropped) - m.IPTablesOutputDropped.Init(a.IPTablesOutputDropped, b.IPTablesOutputDropped) - m.IPTablesPostroutingDropped.Init(a.IPTablesPostroutingDropped, b.IPTablesPostroutingDropped) - m.OptionTimestampReceived.Init(a.OptionTimestampReceived, b.OptionTimestampReceived) - m.OptionRecordRouteReceived.Init(a.OptionRecordRouteReceived, b.OptionRecordRouteReceived) - m.OptionRouterAlertReceived.Init(a.OptionRouterAlertReceived, b.OptionRouterAlertReceived) - m.OptionUnknownReceived.Init(a.OptionUnknownReceived, b.OptionUnknownReceived) - m.Forwarding.Init(&a.Forwarding, &b.Forwarding) -} - -// LINT.ThenChange(:MultiCounterIPStats, ../../../tcpip.go:IPStats) diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/multicast/multicast_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/multicast/multicast_state_autogen.go deleted file mode 100644 index ecf8fc26c2..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/multicast/multicast_state_autogen.go +++ /dev/null @@ -1,137 +0,0 @@ -// automatically generated by stateify. - -package multicast - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (r *RouteTable) StateTypeName() string { - return "pkg/tcpip/network/internal/multicast.RouteTable" -} - -func (r *RouteTable) StateFields() []string { - return []string{ - "installedRoutes", - "pendingRoutes", - "cleanupPendingRoutesTimer", - "isCleanupRoutineRunning", - "config", - } -} - -func (r *RouteTable) beforeSave() {} - -// +checklocksignore -func (r *RouteTable) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.installedRoutes) - stateSinkObject.Save(1, &r.pendingRoutes) - stateSinkObject.Save(2, &r.cleanupPendingRoutesTimer) - stateSinkObject.Save(3, &r.isCleanupRoutineRunning) - stateSinkObject.Save(4, &r.config) -} - -func (r *RouteTable) afterLoad(context.Context) {} - -// +checklocksignore -func (r *RouteTable) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.installedRoutes) - stateSourceObject.Load(1, &r.pendingRoutes) - stateSourceObject.Load(2, &r.cleanupPendingRoutesTimer) - stateSourceObject.Load(3, &r.isCleanupRoutineRunning) - stateSourceObject.Load(4, &r.config) -} - -func (r *InstalledRoute) StateTypeName() string { - return "pkg/tcpip/network/internal/multicast.InstalledRoute" -} - -func (r *InstalledRoute) StateFields() []string { - return []string{ - "MulticastRoute", - "lastUsedTimestamp", - } -} - -func (r *InstalledRoute) beforeSave() {} - -// +checklocksignore -func (r *InstalledRoute) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.MulticastRoute) - stateSinkObject.Save(1, &r.lastUsedTimestamp) -} - -func (r *InstalledRoute) afterLoad(context.Context) {} - -// +checklocksignore -func (r *InstalledRoute) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.MulticastRoute) - stateSourceObject.Load(1, &r.lastUsedTimestamp) -} - -func (p *PendingRoute) StateTypeName() string { - return "pkg/tcpip/network/internal/multicast.PendingRoute" -} - -func (p *PendingRoute) StateFields() []string { - return []string{ - "packets", - "expiration", - } -} - -func (p *PendingRoute) beforeSave() {} - -// +checklocksignore -func (p *PendingRoute) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - stateSinkObject.Save(0, &p.packets) - stateSinkObject.Save(1, &p.expiration) -} - -func (p *PendingRoute) afterLoad(context.Context) {} - -// +checklocksignore -func (p *PendingRoute) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.packets) - stateSourceObject.Load(1, &p.expiration) -} - -func (c *Config) StateTypeName() string { - return "pkg/tcpip/network/internal/multicast.Config" -} - -func (c *Config) StateFields() []string { - return []string{ - "MaxPendingQueueSize", - "Clock", - } -} - -func (c *Config) beforeSave() {} - -// +checklocksignore -func (c *Config) StateSave(stateSinkObject state.Sink) { - c.beforeSave() - stateSinkObject.Save(0, &c.MaxPendingQueueSize) - stateSinkObject.Save(1, &c.Clock) -} - -func (c *Config) afterLoad(context.Context) {} - -// +checklocksignore -func (c *Config) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &c.MaxPendingQueueSize) - stateSourceObject.Load(1, &c.Clock) -} - -func init() { - state.Register((*RouteTable)(nil)) - state.Register((*InstalledRoute)(nil)) - state.Register((*PendingRoute)(nil)) - state.Register((*Config)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/multicast/route_table.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/multicast/route_table.go deleted file mode 100644 index d74aa31fd6..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/internal/multicast/route_table.go +++ /dev/null @@ -1,446 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package multicast contains utilities for supporting multicast routing. -package multicast - -import ( - "errors" - "fmt" - "sync" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -// RouteTable represents a multicast routing table. -// -// +stateify savable -type RouteTable struct { - // Internally, installed and pending routes are stored and locked separately - // A couple of reasons for structuring the table this way: - // - // 1. We can avoid write locking installed routes when pending packets are - // being queued. In other words, the happy path of reading installed - // routes doesn't require an exclusive lock. - // 2. The cleanup process for expired routes only needs to operate on pending - // routes. Like above, a write lock on the installed routes can be - // avoided. - // 3. This structure is similar to the Linux implementation: - // https://github.com/torvalds/linux/blob/cffb2b72d3e/include/linux/mroute_base.h#L250 - - // The installedMu lock should typically be acquired before the pendingMu - // lock. This ensures that installed routes can continue to be read even when - // the pending routes are write locked. - - installedMu sync.RWMutex `state:"nosave"` - // Maintaining pointers ensures that the installed routes are exclusively - // locked only when a route is being installed. - // +checklocks:installedMu - installedRoutes map[stack.UnicastSourceAndMulticastDestination]*InstalledRoute - - pendingMu sync.RWMutex `state:"nosave"` - // +checklocks:pendingMu - pendingRoutes map[stack.UnicastSourceAndMulticastDestination]PendingRoute - // cleanupPendingRoutesTimer is a timer that triggers a routine to remove - // pending routes that are expired. - // +checklocks:pendingMu - cleanupPendingRoutesTimer tcpip.Timer - // +checklocks:pendingMu - isCleanupRoutineRunning bool - - config Config -} - -var ( - // ErrNoBufferSpace indicates that no buffer space is available in the - // pending route packet queue. - ErrNoBufferSpace = errors.New("unable to queue packet, no buffer space available") - - // ErrMissingClock indicates that a clock was not provided as part of the - // Config, but is required. - ErrMissingClock = errors.New("clock must not be nil") - - // ErrAlreadyInitialized indicates that RouteTable.Init was already invoked. - ErrAlreadyInitialized = errors.New("table is already initialized") -) - -// InstalledRoute represents a route that is in the installed state. -// -// If a route is in the installed state, then it may be used to forward -// multicast packets. -// -// +stateify savable -type InstalledRoute struct { - stack.MulticastRoute - - lastUsedTimestampMu sync.RWMutex `state:"nosave"` - // +checklocks:lastUsedTimestampMu - lastUsedTimestamp tcpip.MonotonicTime -} - -// LastUsedTimestamp returns a monotonic timestamp that corresponds to the last -// time the route was used or updated. -func (r *InstalledRoute) LastUsedTimestamp() tcpip.MonotonicTime { - r.lastUsedTimestampMu.RLock() - defer r.lastUsedTimestampMu.RUnlock() - - return r.lastUsedTimestamp -} - -// SetLastUsedTimestamp sets the time that the route was last used. -// -// The timestamp is only updated if it occurs after the currently set -// timestamp. Callers should invoke this anytime the route is used to forward a -// packet. -func (r *InstalledRoute) SetLastUsedTimestamp(monotonicTime tcpip.MonotonicTime) { - r.lastUsedTimestampMu.Lock() - defer r.lastUsedTimestampMu.Unlock() - - if monotonicTime.After(r.lastUsedTimestamp) { - r.lastUsedTimestamp = monotonicTime - } -} - -// PendingRoute represents a route that is in the "pending" state. -// -// A route is in the pending state if an installed route does not yet exist -// for the entry. For such routes, packets are added to an expiring queue until -// a route is installed. -// -// +stateify savable -type PendingRoute struct { - packets []*stack.PacketBuffer - - // expiration is the timestamp at which the pending route should be expired. - // - // If this value is before the current time, then this pending route will - // be dropped. - expiration tcpip.MonotonicTime -} - -func (p *PendingRoute) releasePackets() { - for _, pkt := range p.packets { - pkt.DecRef() - } -} - -func (p *PendingRoute) isExpired(currentTime tcpip.MonotonicTime) bool { - return currentTime.After(p.expiration) -} - -const ( - // DefaultMaxPendingQueueSize corresponds to the number of elements that can - // be in the packet queue for a pending route. - // - // Matches the Linux default queue size: - // https://github.com/torvalds/linux/blob/26291c54e11/net/ipv6/ip6mr.c#L1186 - DefaultMaxPendingQueueSize uint8 = 3 - - // DefaultPendingRouteExpiration is the default maximum lifetime of a pending - // route. - // - // Matches the Linux default: - // https://github.com/torvalds/linux/blob/26291c54e11/net/ipv6/ip6mr.c#L991 - DefaultPendingRouteExpiration time.Duration = 10 * time.Second - - // DefaultCleanupInterval is the default frequency of the routine that - // expires pending routes. - // - // Matches the Linux default: - // https://github.com/torvalds/linux/blob/26291c54e11/net/ipv6/ip6mr.c#L793 - DefaultCleanupInterval time.Duration = 10 * time.Second -) - -// Config represents the options for configuring a RouteTable. -// -// +stateify savable -type Config struct { - // MaxPendingQueueSize corresponds to the maximum number of queued packets - // for a pending route. - // - // If the caller attempts to queue a packet and the queue already contains - // MaxPendingQueueSize elements, then the packet will be rejected and should - // not be forwarded. - MaxPendingQueueSize uint8 - - // Clock represents the clock that should be used to obtain the current time. - // - // This field is required and must have a non-nil value. - Clock tcpip.Clock -} - -// DefaultConfig returns the default configuration for the table. -func DefaultConfig(clock tcpip.Clock) Config { - return Config{ - MaxPendingQueueSize: DefaultMaxPendingQueueSize, - Clock: clock, - } -} - -// Init initializes the RouteTable with the provided config. -// -// An error is returned if the config is not valid. -// -// Must be called before any other function on the table. -func (r *RouteTable) Init(config Config) error { - r.installedMu.Lock() - defer r.installedMu.Unlock() - r.pendingMu.Lock() - defer r.pendingMu.Unlock() - - if r.installedRoutes != nil { - return ErrAlreadyInitialized - } - - if config.Clock == nil { - return ErrMissingClock - } - - r.config = config - r.installedRoutes = make(map[stack.UnicastSourceAndMulticastDestination]*InstalledRoute) - r.pendingRoutes = make(map[stack.UnicastSourceAndMulticastDestination]PendingRoute) - - return nil -} - -// Close cleans up resources held by the table. -// -// Calling this will stop the cleanup routine and release any packets owned by -// the table. -func (r *RouteTable) Close() { - r.pendingMu.Lock() - defer r.pendingMu.Unlock() - - if r.cleanupPendingRoutesTimer != nil { - r.cleanupPendingRoutesTimer.Stop() - } - - for key, route := range r.pendingRoutes { - delete(r.pendingRoutes, key) - route.releasePackets() - } -} - -// maybeStopCleanupRoutine stops the pending routes cleanup routine if no -// pending routes exist. -// -// Returns true if the timer is not running. Otherwise, returns false. -// -// +checklocks:r.pendingMu -func (r *RouteTable) maybeStopCleanupRoutineLocked() bool { - if !r.isCleanupRoutineRunning { - return true - } - - if len(r.pendingRoutes) == 0 { - r.cleanupPendingRoutesTimer.Stop() - r.isCleanupRoutineRunning = false - return true - } - - return false -} - -func (r *RouteTable) cleanupPendingRoutes() { - currentTime := r.config.Clock.NowMonotonic() - r.pendingMu.Lock() - defer r.pendingMu.Unlock() - - for key, route := range r.pendingRoutes { - if route.isExpired(currentTime) { - delete(r.pendingRoutes, key) - route.releasePackets() - } - } - - if stopped := r.maybeStopCleanupRoutineLocked(); !stopped { - r.cleanupPendingRoutesTimer.Reset(DefaultCleanupInterval) - } -} - -func (r *RouteTable) newPendingRoute() PendingRoute { - return PendingRoute{ - packets: make([]*stack.PacketBuffer, 0, r.config.MaxPendingQueueSize), - expiration: r.config.Clock.NowMonotonic().Add(DefaultPendingRouteExpiration), - } -} - -// NewInstalledRoute instantiates an installed route for the table. -func (r *RouteTable) NewInstalledRoute(route stack.MulticastRoute) *InstalledRoute { - return &InstalledRoute{ - MulticastRoute: route, - lastUsedTimestamp: r.config.Clock.NowMonotonic(), - } -} - -// GetRouteResult represents the result of calling GetRouteOrInsertPending. -type GetRouteResult struct { - // GetRouteResultState signals the result of calling GetRouteOrInsertPending. - GetRouteResultState GetRouteResultState - - // InstalledRoute represents the existing installed route. This field will - // only be populated if the GetRouteResultState is InstalledRouteFound. - InstalledRoute *InstalledRoute -} - -// GetRouteResultState signals the result of calling GetRouteOrInsertPending. -type GetRouteResultState uint8 - -const ( - // InstalledRouteFound indicates that an InstalledRoute was found. - InstalledRouteFound GetRouteResultState = iota - - // PacketQueuedInPendingRoute indicates that the packet was queued in an - // existing pending route. - PacketQueuedInPendingRoute - - // NoRouteFoundAndPendingInserted indicates that no route was found and that - // a pending route was newly inserted into the RouteTable. - NoRouteFoundAndPendingInserted -) - -func (e GetRouteResultState) String() string { - switch e { - case InstalledRouteFound: - return "InstalledRouteFound" - case PacketQueuedInPendingRoute: - return "PacketQueuedInPendingRoute" - case NoRouteFoundAndPendingInserted: - return "NoRouteFoundAndPendingInserted" - default: - return fmt.Sprintf("%d", uint8(e)) - } -} - -// GetRouteOrInsertPending attempts to fetch the installed route that matches -// the provided key. -// -// If no matching installed route is found, then the pkt is cloned and queued -// in a pending route. The GetRouteResult.GetRouteResultState will indicate -// whether the pkt was queued in a new pending route or an existing one. -// -// If the relevant pending route queue is at max capacity, then returns false. -// Otherwise, returns true. -func (r *RouteTable) GetRouteOrInsertPending(key stack.UnicastSourceAndMulticastDestination, pkt *stack.PacketBuffer) (GetRouteResult, bool) { - r.installedMu.RLock() - defer r.installedMu.RUnlock() - - if route, ok := r.installedRoutes[key]; ok { - return GetRouteResult{GetRouteResultState: InstalledRouteFound, InstalledRoute: route}, true - } - - r.pendingMu.Lock() - defer r.pendingMu.Unlock() - - pendingRoute, getRouteResultState := r.getOrCreatePendingRouteRLocked(key) - if len(pendingRoute.packets) >= int(r.config.MaxPendingQueueSize) { - // The incoming packet is rejected if the pending queue is already at max - // capacity. This behavior matches the Linux implementation: - // https://github.com/torvalds/linux/blob/ae085d7f936/net/ipv4/ipmr.c#L1147 - return GetRouteResult{}, false - } - pendingRoute.packets = append(pendingRoute.packets, pkt.Clone()) - r.pendingRoutes[key] = pendingRoute - - if !r.isCleanupRoutineRunning { - // The cleanup routine isn't running, but should be. Start it. - if r.cleanupPendingRoutesTimer == nil { - r.cleanupPendingRoutesTimer = r.config.Clock.AfterFunc(DefaultCleanupInterval, r.cleanupPendingRoutes) - } else { - r.cleanupPendingRoutesTimer.Reset(DefaultCleanupInterval) - } - r.isCleanupRoutineRunning = true - } - - return GetRouteResult{GetRouteResultState: getRouteResultState, InstalledRoute: nil}, true -} - -// +checklocks:r.pendingMu -func (r *RouteTable) getOrCreatePendingRouteRLocked(key stack.UnicastSourceAndMulticastDestination) (PendingRoute, GetRouteResultState) { - if pendingRoute, ok := r.pendingRoutes[key]; ok { - return pendingRoute, PacketQueuedInPendingRoute - } - return r.newPendingRoute(), NoRouteFoundAndPendingInserted -} - -// AddInstalledRoute adds the provided route to the table. -// -// Packets that were queued while the route was in the pending state are -// returned. The caller assumes ownership of these packets and is responsible -// for forwarding and releasing them. If an installed route already exists for -// the provided key, then it is overwritten. -func (r *RouteTable) AddInstalledRoute(key stack.UnicastSourceAndMulticastDestination, route *InstalledRoute) []*stack.PacketBuffer { - r.installedMu.Lock() - defer r.installedMu.Unlock() - r.installedRoutes[key] = route - - r.pendingMu.Lock() - pendingRoute, ok := r.pendingRoutes[key] - delete(r.pendingRoutes, key) - // No need to reset the timer here. The cleanup routine is responsible for - // doing so. - _ = r.maybeStopCleanupRoutineLocked() - r.pendingMu.Unlock() - - // Ignore the pending route if it is expired. It may be in this state since - // the cleanup process is only run periodically. - if !ok || pendingRoute.isExpired(r.config.Clock.NowMonotonic()) { - pendingRoute.releasePackets() - return nil - } - - return pendingRoute.packets -} - -// RemoveInstalledRoute deletes any installed route that matches the provided -// key. -// -// Returns true if a route was removed. Otherwise returns false. -func (r *RouteTable) RemoveInstalledRoute(key stack.UnicastSourceAndMulticastDestination) bool { - r.installedMu.Lock() - defer r.installedMu.Unlock() - - if _, ok := r.installedRoutes[key]; ok { - delete(r.installedRoutes, key) - return true - } - - return false -} - -// RemoveAllInstalledRoutes removes all installed routes from the table. -func (r *RouteTable) RemoveAllInstalledRoutes() { - r.installedMu.Lock() - defer r.installedMu.Unlock() - - for key := range r.installedRoutes { - delete(r.installedRoutes, key) - } -} - -// GetLastUsedTimestamp returns a monotonic timestamp that represents the last -// time the route that matches the provided key was used or updated. -// -// Returns true if a matching route was found. Otherwise returns false. -func (r *RouteTable) GetLastUsedTimestamp(key stack.UnicastSourceAndMulticastDestination) (tcpip.MonotonicTime, bool) { - r.installedMu.RLock() - defer r.installedMu.RUnlock() - - if route, ok := r.installedRoutes[key]; ok { - return route.LastUsedTimestamp(), true - } - return tcpip.MonotonicTime{}, false -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/ipv4/icmp.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/ipv4/icmp.go deleted file mode 100644 index 8e96ca8031..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/ipv4/icmp.go +++ /dev/null @@ -1,821 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package ipv4 - -import ( - "fmt" - - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/checksum" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/header/parse" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -// icmpv4DestinationUnreachableSockError is a general ICMPv4 Destination -// Unreachable error. -// -// +stateify savable -type icmpv4DestinationUnreachableSockError struct{} - -// Origin implements tcpip.SockErrorCause. -func (*icmpv4DestinationUnreachableSockError) Origin() tcpip.SockErrOrigin { - return tcpip.SockExtErrorOriginICMP -} - -// Type implements tcpip.SockErrorCause. -func (*icmpv4DestinationUnreachableSockError) Type() uint8 { - return uint8(header.ICMPv4DstUnreachable) -} - -// Info implements tcpip.SockErrorCause. -func (*icmpv4DestinationUnreachableSockError) Info() uint32 { - return 0 -} - -var _ stack.TransportError = (*icmpv4DestinationHostUnreachableSockError)(nil) - -// icmpv4DestinationHostUnreachableSockError is an ICMPv4 Destination Host -// Unreachable error. -// -// It indicates that a packet was not able to reach the destination host. -// -// +stateify savable -type icmpv4DestinationHostUnreachableSockError struct { - icmpv4DestinationUnreachableSockError -} - -// Code implements tcpip.SockErrorCause. -func (*icmpv4DestinationHostUnreachableSockError) Code() uint8 { - return uint8(header.ICMPv4HostUnreachable) -} - -// Kind implements stack.TransportError. -func (*icmpv4DestinationHostUnreachableSockError) Kind() stack.TransportErrorKind { - return stack.DestinationHostUnreachableTransportError -} - -var _ stack.TransportError = (*icmpv4DestinationNetUnreachableSockError)(nil) - -// icmpv4DestinationNetUnreachableSockError is an ICMPv4 Destination Net -// Unreachable error. -// -// It indicates that a packet was not able to reach the destination network. -// -// +stateify savable -type icmpv4DestinationNetUnreachableSockError struct { - icmpv4DestinationUnreachableSockError -} - -// Code implements tcpip.SockErrorCause. -func (*icmpv4DestinationNetUnreachableSockError) Code() uint8 { - return uint8(header.ICMPv4NetUnreachable) -} - -// Kind implements stack.TransportError. -func (*icmpv4DestinationNetUnreachableSockError) Kind() stack.TransportErrorKind { - return stack.DestinationNetworkUnreachableTransportError -} - -var _ stack.TransportError = (*icmpv4DestinationPortUnreachableSockError)(nil) - -// icmpv4DestinationPortUnreachableSockError is an ICMPv4 Destination Port -// Unreachable error. -// -// It indicates that a packet reached the destination host, but the transport -// protocol was not active on the destination port. -// -// +stateify savable -type icmpv4DestinationPortUnreachableSockError struct { - icmpv4DestinationUnreachableSockError -} - -// Code implements tcpip.SockErrorCause. -func (*icmpv4DestinationPortUnreachableSockError) Code() uint8 { - return uint8(header.ICMPv4PortUnreachable) -} - -// Kind implements stack.TransportError. -func (*icmpv4DestinationPortUnreachableSockError) Kind() stack.TransportErrorKind { - return stack.DestinationPortUnreachableTransportError -} - -var _ stack.TransportError = (*icmpv4DestinationProtoUnreachableSockError)(nil) - -// icmpv4DestinationProtoUnreachableSockError is an ICMPv4 Destination Protocol -// Unreachable error. -// -// It indicates that a packet reached the destination host, but the transport -// protocol was not reachable -// -// +stateify savable -type icmpv4DestinationProtoUnreachableSockError struct { - icmpv4DestinationUnreachableSockError -} - -// Code implements tcpip.SockErrorCause. -func (*icmpv4DestinationProtoUnreachableSockError) Code() uint8 { - return uint8(header.ICMPv4ProtoUnreachable) -} - -// Kind implements stack.TransportError. -func (*icmpv4DestinationProtoUnreachableSockError) Kind() stack.TransportErrorKind { - return stack.DestinationProtoUnreachableTransportError -} - -var _ stack.TransportError = (*icmpv4SourceRouteFailedSockError)(nil) - -// icmpv4SourceRouteFailedSockError is an ICMPv4 Destination Unreachable error -// due to source route failed. -// -// +stateify savable -type icmpv4SourceRouteFailedSockError struct { - icmpv4DestinationUnreachableSockError -} - -// Code implements tcpip.SockErrorCause. -func (*icmpv4SourceRouteFailedSockError) Code() uint8 { - return uint8(header.ICMPv4SourceRouteFailed) -} - -// Kind implements stack.TransportError. -func (*icmpv4SourceRouteFailedSockError) Kind() stack.TransportErrorKind { - return stack.SourceRouteFailedTransportError -} - -var _ stack.TransportError = (*icmpv4SourceHostIsolatedSockError)(nil) - -// icmpv4SourceHostIsolatedSockError is an ICMPv4 Destination Unreachable error -// due to source host isolated (not on the network). -// -// +stateify savable -type icmpv4SourceHostIsolatedSockError struct { - icmpv4DestinationUnreachableSockError -} - -// Code implements tcpip.SockErrorCause. -func (*icmpv4SourceHostIsolatedSockError) Code() uint8 { - return uint8(header.ICMPv4SourceHostIsolated) -} - -// Kind implements stack.TransportError. -func (*icmpv4SourceHostIsolatedSockError) Kind() stack.TransportErrorKind { - return stack.SourceHostIsolatedTransportError -} - -var _ stack.TransportError = (*icmpv4DestinationHostUnknownSockError)(nil) - -// icmpv4DestinationHostUnknownSockError is an ICMPv4 Destination Unreachable -// error due to destination host unknown/down. -// -// +stateify savable -type icmpv4DestinationHostUnknownSockError struct { - icmpv4DestinationUnreachableSockError -} - -// Code implements tcpip.SockErrorCause. -func (*icmpv4DestinationHostUnknownSockError) Code() uint8 { - return uint8(header.ICMPv4DestinationHostUnknown) -} - -// Kind implements stack.TransportError. -func (*icmpv4DestinationHostUnknownSockError) Kind() stack.TransportErrorKind { - return stack.DestinationHostDownTransportError -} - -var _ stack.TransportError = (*icmpv4FragmentationNeededSockError)(nil) - -// icmpv4FragmentationNeededSockError is an ICMPv4 Destination Unreachable error -// due to fragmentation being required but the packet was set to not be -// fragmented. -// -// It indicates that a link exists on the path to the destination with an MTU -// that is too small to carry the packet. -// -// +stateify savable -type icmpv4FragmentationNeededSockError struct { - icmpv4DestinationUnreachableSockError - - mtu uint32 -} - -// Code implements tcpip.SockErrorCause. -func (*icmpv4FragmentationNeededSockError) Code() uint8 { - return uint8(header.ICMPv4FragmentationNeeded) -} - -// Info implements tcpip.SockErrorCause. -func (e *icmpv4FragmentationNeededSockError) Info() uint32 { - return e.mtu -} - -// Kind implements stack.TransportError. -func (*icmpv4FragmentationNeededSockError) Kind() stack.TransportErrorKind { - return stack.PacketTooBigTransportError -} - -func (e *endpoint) checkLocalAddress(addr tcpip.Address) bool { - if e.nic.Spoofing() { - return true - } - - if addressEndpoint := e.AcquireAssignedAddress(addr, false, stack.NeverPrimaryEndpoint, true /* readOnly */); addressEndpoint != nil { - return true - } - return false -} - -// handleControl handles the case when an ICMP error packet contains the headers -// of the original packet that caused the ICMP one to be sent. This information -// is used to find out which transport endpoint must be notified about the ICMP -// packet. We only expect the payload, not the enclosing ICMP packet. -func (e *endpoint) handleControl(errInfo stack.TransportError, pkt *stack.PacketBuffer) { - h, ok := pkt.Data().PullUp(header.IPv4MinimumSize) - if !ok { - return - } - hdr := header.IPv4(h) - - // We don't use IsValid() here because ICMP only requires that the IP - // header plus 8 bytes of the transport header be included. So it's - // likely that it is truncated, which would cause IsValid to return - // false. - // - // Drop packet if it doesn't have the basic IPv4 header or if the - // original source address doesn't match an address we own. - srcAddr := hdr.SourceAddress() - if !e.checkLocalAddress(srcAddr) { - return - } - - hlen := int(hdr.HeaderLength()) - if pkt.Data().Size() < hlen || hdr.FragmentOffset() != 0 { - // We won't be able to handle this if it doesn't contain the - // full IPv4 header, or if it's a fragment not at offset 0 - // (because it won't have the transport header). - return - } - - // Keep needed information before trimming header. - p := hdr.TransportProtocol() - dstAddr := hdr.DestinationAddress() - // Skip the ip header, then deliver the error. - if _, ok := pkt.Data().Consume(hlen); !ok { - panic(fmt.Sprintf("could not consume the IP header of %d bytes", hlen)) - } - e.dispatcher.DeliverTransportError(srcAddr, dstAddr, ProtocolNumber, p, errInfo, pkt) -} - -func (e *endpoint) handleICMP(pkt *stack.PacketBuffer) { - received := e.stats.icmp.packetsReceived - h := header.ICMPv4(pkt.TransportHeader().Slice()) - if len(h) < header.ICMPv4MinimumSize { - received.invalid.Increment() - return - } - - // Only do in-stack processing if the checksum is correct. - if checksum.Checksum(h, pkt.Data().Checksum()) != 0xffff { - received.invalid.Increment() - // It's possible that a raw socket expects to receive this regardless - // of checksum errors. If it's an echo request we know it's safe because - // we are the only handler, however other types do not cope well with - // packets with checksum errors. - switch h.Type() { - case header.ICMPv4Echo: - e.dispatcher.DeliverTransportPacket(header.ICMPv4ProtocolNumber, pkt) - } - return - } - - iph := header.IPv4(pkt.NetworkHeader().Slice()) - var newOptions header.IPv4Options - if opts := iph.Options(); len(opts) != 0 { - // RFC 1122 section 3.2.2.6 (page 43) (and similar for other round trip - // type ICMP packets): - // If a Record Route and/or Time Stamp option is received in an - // ICMP Echo Request, this option (these options) SHOULD be - // updated to include the current host and included in the IP - // header of the Echo Reply message, without "truncation". - // Thus, the recorded route will be for the entire round trip. - // - // So we need to let the option processor know how it should handle them. - var op optionsUsage - if h.Type() == header.ICMPv4Echo { - op = &optionUsageEcho{} - } else { - op = &optionUsageReceive{} - } - var optProblem *header.IPv4OptParameterProblem - newOptions, _, optProblem = e.processIPOptions(pkt, opts, op) - if optProblem != nil { - if optProblem.NeedICMP { - _ = e.protocol.returnError(&icmpReasonParamProblem{ - pointer: optProblem.Pointer, - }, pkt, true /* deliveredLocally */) - e.stats.ip.MalformedPacketsReceived.Increment() - } - return - } - copied := copy(opts, newOptions) - if copied != len(newOptions) { - panic(fmt.Sprintf("copied %d bytes of new options, expected %d bytes", copied, len(newOptions))) - } - for i := copied; i < len(opts); i++ { - // Pad with 0 (EOL). RFC 791 page 23 says "The padding is zero". - opts[i] = byte(header.IPv4OptionListEndType) - } - } - - // TODO(b/112892170): Meaningfully handle all ICMP types. - switch h.Type() { - case header.ICMPv4Echo: - received.echoRequest.Increment() - - // DeliverTransportPacket may modify pkt so don't use it beyond - // this point. Make a deep copy of the data before pkt gets sent as we will - // be modifying fields. Both the ICMP header (with its type modified to - // EchoReply) and payload are reused in the reply packet. - // - // TODO(gvisor.dev/issue/4399): The copy may not be needed if there are no - // waiting endpoints. Consider moving responsibility for doing the copy to - // DeliverTransportPacket so that is is only done when needed. - replyData := stack.PayloadSince(pkt.TransportHeader()) - defer replyData.Release() - ipHdr := header.IPv4(pkt.NetworkHeader().Slice()) - localAddressBroadcast := pkt.NetworkPacketInfo.LocalAddressBroadcast - - // It's possible that a raw socket expects to receive this. - e.dispatcher.DeliverTransportPacket(header.ICMPv4ProtocolNumber, pkt) - pkt = nil - - sent := e.stats.icmp.packetsSent - if !e.protocol.allowICMPReply(header.ICMPv4EchoReply, header.ICMPv4UnusedCode) { - sent.rateLimited.Increment() - return - } - - // As per RFC 1122 section 3.2.1.3, when a host sends any datagram, the IP - // source address MUST be one of its own IP addresses (but not a broadcast - // or multicast address). - localAddr := ipHdr.DestinationAddress() - if localAddressBroadcast || header.IsV4MulticastAddress(localAddr) { - localAddr = tcpip.Address{} - } - - r, err := e.protocol.stack.FindRoute(e.nic.ID(), localAddr, ipHdr.SourceAddress(), ProtocolNumber, false /* multicastLoop */) - if err != nil { - // If we cannot find a route to the destination, silently drop the packet. - return - } - defer r.Release() - - outgoingEP, ok := e.protocol.getEndpointForNIC(r.NICID()) - if !ok { - // The outgoing NIC went away. - sent.dropped.Increment() - return - } - - // Because IP and ICMP are so closely intertwined, we need to handcraft our - // IP header to be able to follow RFC 792. The wording on page 13 is as - // follows: - // IP Fields: - // Addresses - // The address of the source in an echo message will be the - // destination of the echo reply message. To form an echo reply - // message, the source and destination addresses are simply reversed, - // the type code changed to 0, and the checksum recomputed. - // - // This was interpreted by early implementors to mean that all options must - // be copied from the echo request IP header to the echo reply IP header - // and this behaviour is still relied upon by some applications. - // - // Create a copy of the IP header we received, options and all, and change - // The fields we need to alter. - // - // We need to produce the entire packet in the data segment in order to - // use WriteHeaderIncludedPacket(). WriteHeaderIncludedPacket sets the - // total length and the header checksum so we don't need to set those here. - // - // Take the base of the incoming request IP header but replace the options. - replyHeaderLength := uint8(header.IPv4MinimumSize + len(newOptions)) - replyIPHdrView := buffer.NewView(int(replyHeaderLength)) - replyIPHdrView.Write(iph[:header.IPv4MinimumSize]) - replyIPHdrView.Write(newOptions) - replyIPHdr := header.IPv4(replyIPHdrView.AsSlice()) - replyIPHdr.SetHeaderLength(replyHeaderLength) - replyIPHdr.SetSourceAddress(r.LocalAddress()) - replyIPHdr.SetDestinationAddress(r.RemoteAddress()) - replyIPHdr.SetTTL(r.DefaultTTL()) - replyIPHdr.SetTotalLength(uint16(len(replyIPHdr) + len(replyData.AsSlice()))) - replyIPHdr.SetChecksum(0) - replyIPHdr.SetChecksum(^replyIPHdr.CalculateChecksum()) - - replyICMPHdr := header.ICMPv4(replyData.AsSlice()) - replyICMPHdr.SetType(header.ICMPv4EchoReply) - replyICMPHdr.SetChecksum(0) - replyICMPHdr.SetChecksum(^checksum.Checksum(replyData.AsSlice(), 0)) - - replyBuf := buffer.MakeWithView(replyIPHdrView) - replyBuf.Append(replyData.Clone()) - replyPkt := stack.NewPacketBuffer(stack.PacketBufferOptions{ - ReserveHeaderBytes: int(r.MaxHeaderLength()), - Payload: replyBuf, - }) - defer replyPkt.DecRef() - // Populate the network/transport headers in the packet buffer so the - // ICMP packet goes through IPTables. - if ok := parse.IPv4(replyPkt); !ok { - panic("expected to parse IPv4 header we just created") - } - if ok := parse.ICMPv4(replyPkt); !ok { - panic("expected to parse ICMPv4 header we just created") - } - - if err := outgoingEP.writePacket(r, replyPkt); err != nil { - sent.dropped.Increment() - return - } - sent.echoReply.Increment() - - case header.ICMPv4EchoReply: - received.echoReply.Increment() - - // ICMP sockets expect the ICMP header to be present, so we don't consume - // the ICMP header. - e.dispatcher.DeliverTransportPacket(header.ICMPv4ProtocolNumber, pkt) - - case header.ICMPv4DstUnreachable: - received.dstUnreachable.Increment() - - mtu := h.MTU() - code := h.Code() - switch code { - case header.ICMPv4NetUnreachable, - header.ICMPv4DestinationNetworkUnknown, - header.ICMPv4NetUnreachableForTos, - header.ICMPv4NetProhibited: - e.handleControl(&icmpv4DestinationNetUnreachableSockError{}, pkt) - case header.ICMPv4HostUnreachable, - header.ICMPv4HostProhibited, - header.ICMPv4AdminProhibited, - header.ICMPv4HostUnreachableForTos, - header.ICMPv4HostPrecedenceViolation, - header.ICMPv4PrecedenceCutInEffect: - e.handleControl(&icmpv4DestinationHostUnreachableSockError{}, pkt) - case header.ICMPv4PortUnreachable: - e.handleControl(&icmpv4DestinationPortUnreachableSockError{}, pkt) - case header.ICMPv4FragmentationNeeded: - networkMTU, err := calculateNetworkMTU(uint32(mtu), header.IPv4MinimumSize) - if err != nil { - networkMTU = 0 - } - e.handleControl(&icmpv4FragmentationNeededSockError{mtu: networkMTU}, pkt) - case header.ICMPv4ProtoUnreachable: - e.handleControl(&icmpv4DestinationProtoUnreachableSockError{}, pkt) - case header.ICMPv4SourceRouteFailed: - e.handleControl(&icmpv4SourceRouteFailedSockError{}, pkt) - case header.ICMPv4SourceHostIsolated: - e.handleControl(&icmpv4SourceHostIsolatedSockError{}, pkt) - case header.ICMPv4DestinationHostUnknown: - e.handleControl(&icmpv4DestinationHostUnknownSockError{}, pkt) - } - case header.ICMPv4SrcQuench: - received.srcQuench.Increment() - - case header.ICMPv4Redirect: - received.redirect.Increment() - - case header.ICMPv4TimeExceeded: - received.timeExceeded.Increment() - - case header.ICMPv4ParamProblem: - received.paramProblem.Increment() - - case header.ICMPv4Timestamp: - received.timestamp.Increment() - - case header.ICMPv4TimestampReply: - received.timestampReply.Increment() - - case header.ICMPv4InfoRequest: - received.infoRequest.Increment() - - case header.ICMPv4InfoReply: - received.infoReply.Increment() - - default: - received.invalid.Increment() - } -} - -// ======= ICMP Error packet generation ========= - -// icmpReason is a marker interface for IPv4 specific ICMP errors. -type icmpReason interface { - isICMPReason() -} - -// icmpReasonNetworkProhibited is an error where the destination network is -// prohibited. -type icmpReasonNetworkProhibited struct{} - -func (*icmpReasonNetworkProhibited) isICMPReason() {} - -// icmpReasonHostProhibited is an error where the destination host is -// prohibited. -type icmpReasonHostProhibited struct{} - -func (*icmpReasonHostProhibited) isICMPReason() {} - -// icmpReasonAdministrativelyProhibited is an error where the destination is -// administratively prohibited. -type icmpReasonAdministrativelyProhibited struct{} - -func (*icmpReasonAdministrativelyProhibited) isICMPReason() {} - -// icmpReasonPortUnreachable is an error where the transport protocol has no -// listener and no alternative means to inform the sender. -type icmpReasonPortUnreachable struct{} - -func (*icmpReasonPortUnreachable) isICMPReason() {} - -// icmpReasonProtoUnreachable is an error where the transport protocol is -// not supported. -type icmpReasonProtoUnreachable struct{} - -func (*icmpReasonProtoUnreachable) isICMPReason() {} - -// icmpReasonTTLExceeded is an error where a packet's time to live exceeded in -// transit to its final destination, as per RFC 792 page 6, Time Exceeded -// Message. -type icmpReasonTTLExceeded struct{} - -func (*icmpReasonTTLExceeded) isICMPReason() {} - -// icmpReasonReassemblyTimeout is an error where insufficient fragments are -// received to complete reassembly of a packet within a configured time after -// the reception of the first-arriving fragment of that packet. -type icmpReasonReassemblyTimeout struct{} - -func (*icmpReasonReassemblyTimeout) isICMPReason() {} - -// icmpReasonParamProblem is an error to use to request a Parameter Problem -// message to be sent. -type icmpReasonParamProblem struct { - pointer byte -} - -func (*icmpReasonParamProblem) isICMPReason() {} - -// icmpReasonNetworkUnreachable is an error in which the network specified in -// the internet destination field of the datagram is unreachable. -type icmpReasonNetworkUnreachable struct{} - -func (*icmpReasonNetworkUnreachable) isICMPReason() {} - -// icmpReasonFragmentationNeeded is an error where a packet requires -// fragmentation while also having the Don't Fragment flag set, as per RFC 792 -// page 3, Destination Unreachable Message. -type icmpReasonFragmentationNeeded struct{} - -func (*icmpReasonFragmentationNeeded) isICMPReason() {} - -// icmpReasonHostUnreachable is an error in which the host specified in the -// internet destination field of the datagram is unreachable. -type icmpReasonHostUnreachable struct{} - -func (*icmpReasonHostUnreachable) isICMPReason() {} - -// returnError takes an error descriptor and generates the appropriate ICMP -// error packet for IPv4 and sends it back to the remote device that sent -// the problematic packet. It incorporates as much of that packet as -// possible as well as any error metadata as is available. returnError -// expects pkt to hold a valid IPv4 packet as per the wire format. -func (p *protocol) returnError(reason icmpReason, pkt *stack.PacketBuffer, deliveredLocally bool) tcpip.Error { - origIPHdr := header.IPv4(pkt.NetworkHeader().Slice()) - origIPHdrSrc := origIPHdr.SourceAddress() - origIPHdrDst := origIPHdr.DestinationAddress() - - // We check we are responding only when we are allowed to. - // See RFC 1812 section 4.3.2.7 (shown below). - // - // ========= - // 4.3.2.7 When Not to Send ICMP Errors - // - // An ICMP error message MUST NOT be sent as the result of receiving: - // - // o An ICMP error message, or - // - // o A packet which fails the IP header validation tests described in - // Section [5.2.2] (except where that section specifically permits - // the sending of an ICMP error message), or - // - // o A packet destined to an IP broadcast or IP multicast address, or - // - // o A packet sent as a Link Layer broadcast or multicast, or - // - // o Any fragment of a datagram other then the first fragment (i.e., a - // packet for which the fragment offset in the IP header is nonzero). - // - // TODO(gvisor.dev/issues/4058): Make sure we don't send ICMP errors in - // response to a non-initial fragment, but it currently can not happen. - if pkt.NetworkPacketInfo.LocalAddressBroadcast || header.IsV4MulticastAddress(origIPHdrDst) || origIPHdrSrc == header.IPv4Any { - return nil - } - - // If the packet wasn't delivered locally, do not use the packet's destination - // address as the response's source address as we should not not own the - // destination address of a packet we are forwarding. - localAddr := origIPHdrDst - if !deliveredLocally { - localAddr = tcpip.Address{} - } - - // Even if we were able to receive a packet from some remote, we may not have - // a route to it - the remote may be blocked via routing rules. We must always - // consult our routing table and find a route to the remote before sending any - // packet. - route, err := p.stack.FindRoute(pkt.NICID, localAddr, origIPHdrSrc, ProtocolNumber, false /* multicastLoop */) - if err != nil { - return err - } - defer route.Release() - - p.mu.Lock() - // We retrieve an endpoint using the newly constructed route's NICID rather - // than the packet's NICID. The packet's NICID corresponds to the NIC on - // which it arrived, which isn't necessarily the same as the NIC on which it - // will be transmitted. On the other hand, the route's NIC *is* guaranteed - // to be the NIC on which the packet will be transmitted. - netEP, ok := p.eps[route.NICID()] - p.mu.Unlock() - if !ok { - return &tcpip.ErrNotConnected{} - } - - transportHeader := pkt.TransportHeader().Slice() - - // Don't respond to icmp error packets. - if origIPHdr.Protocol() == uint8(header.ICMPv4ProtocolNumber) { - // We need to decide to explicitly name the packets we can respond to or - // the ones we can not respond to. The decision is somewhat arbitrary and - // if problems arise this could be reversed. It was judged less of a breach - // of protocol to not respond to unknown non-error packets than to respond - // to unknown error packets so we take the first approach. - if len(transportHeader) < header.ICMPv4MinimumSize { - // The packet is malformed. - return nil - } - switch header.ICMPv4(transportHeader).Type() { - case - header.ICMPv4EchoReply, - header.ICMPv4Echo, - header.ICMPv4Timestamp, - header.ICMPv4TimestampReply, - header.ICMPv4InfoRequest, - header.ICMPv4InfoReply: - default: - // Assume any type we don't know about may be an error type. - return nil - } - } - - sent := netEP.stats.icmp.packetsSent - icmpType, icmpCode, counter, pointer := func() (header.ICMPv4Type, header.ICMPv4Code, tcpip.MultiCounterStat, byte) { - switch reason := reason.(type) { - case *icmpReasonNetworkProhibited: - return header.ICMPv4DstUnreachable, header.ICMPv4NetProhibited, sent.dstUnreachable, 0 - case *icmpReasonHostProhibited: - return header.ICMPv4DstUnreachable, header.ICMPv4HostProhibited, sent.dstUnreachable, 0 - case *icmpReasonAdministrativelyProhibited: - return header.ICMPv4DstUnreachable, header.ICMPv4AdminProhibited, sent.dstUnreachable, 0 - case *icmpReasonPortUnreachable: - return header.ICMPv4DstUnreachable, header.ICMPv4PortUnreachable, sent.dstUnreachable, 0 - case *icmpReasonProtoUnreachable: - return header.ICMPv4DstUnreachable, header.ICMPv4ProtoUnreachable, sent.dstUnreachable, 0 - case *icmpReasonNetworkUnreachable: - return header.ICMPv4DstUnreachable, header.ICMPv4NetUnreachable, sent.dstUnreachable, 0 - case *icmpReasonHostUnreachable: - return header.ICMPv4DstUnreachable, header.ICMPv4HostUnreachable, sent.dstUnreachable, 0 - case *icmpReasonFragmentationNeeded: - return header.ICMPv4DstUnreachable, header.ICMPv4FragmentationNeeded, sent.dstUnreachable, 0 - case *icmpReasonTTLExceeded: - return header.ICMPv4TimeExceeded, header.ICMPv4TTLExceeded, sent.timeExceeded, 0 - case *icmpReasonReassemblyTimeout: - return header.ICMPv4TimeExceeded, header.ICMPv4ReassemblyTimeout, sent.timeExceeded, 0 - case *icmpReasonParamProblem: - return header.ICMPv4ParamProblem, header.ICMPv4UnusedCode, sent.paramProblem, reason.pointer - default: - panic(fmt.Sprintf("unsupported ICMP type %T", reason)) - } - }() - - if !p.allowICMPReply(icmpType, icmpCode) { - sent.rateLimited.Increment() - return nil - } - - // Now work out how much of the triggering packet we should return. - // As per RFC 1812 Section 4.3.2.3 - // - // ICMP datagram SHOULD contain as much of the original - // datagram as possible without the length of the ICMP - // datagram exceeding 576 bytes. - // - // NOTE: The above RFC referenced is different from the original - // recommendation in RFC 1122 and RFC 792 where it mentioned that at - // least 8 bytes of the payload must be included. Today linux and other - // systems implement the RFC 1812 definition and not the original - // requirement. We treat 8 bytes as the minimum but will try send more. - mtu := int(route.MTU()) - const maxIPData = header.IPv4MinimumProcessableDatagramSize - header.IPv4MinimumSize - if mtu > maxIPData { - mtu = maxIPData - } - available := mtu - header.ICMPv4MinimumSize - - if available < len(origIPHdr)+header.ICMPv4MinimumErrorPayloadSize { - return nil - } - - payloadLen := len(origIPHdr) + len(transportHeader) + pkt.Data().Size() - if payloadLen > available { - payloadLen = available - } - - // The buffers used by pkt may be used elsewhere in the system. - // For example, an AF_RAW or AF_PACKET socket may use what the transport - // protocol considers an unreachable destination. Thus we deep copy pkt to - // prevent multiple ownership and SR errors. The new copy is a vectorized - // view with the entire incoming IP packet reassembled and truncated as - // required. This is now the payload of the new ICMP packet and no longer - // considered a packet in its own right. - - payload := buffer.MakeWithView(pkt.NetworkHeader().View()) - payload.Append(pkt.TransportHeader().View()) - if dataCap := payloadLen - int(payload.Size()); dataCap > 0 { - buf := pkt.Data().ToBuffer() - buf.Truncate(int64(dataCap)) - payload.Merge(&buf) - } else { - payload.Truncate(int64(payloadLen)) - } - - icmpPkt := stack.NewPacketBuffer(stack.PacketBufferOptions{ - ReserveHeaderBytes: int(route.MaxHeaderLength()) + header.ICMPv4MinimumSize, - Payload: payload, - }) - defer icmpPkt.DecRef() - - icmpPkt.TransportProtocolNumber = header.ICMPv4ProtocolNumber - - icmpHdr := header.ICMPv4(icmpPkt.TransportHeader().Push(header.ICMPv4MinimumSize)) - icmpHdr.SetCode(icmpCode) - icmpHdr.SetType(icmpType) - icmpHdr.SetPointer(pointer) - icmpHdr.SetChecksum(header.ICMPv4Checksum(icmpHdr, icmpPkt.Data().Checksum())) - - if err := route.WritePacket( - stack.NetworkHeaderParams{ - Protocol: header.ICMPv4ProtocolNumber, - TTL: route.DefaultTTL(), - TOS: stack.DefaultTOS, - }, - icmpPkt, - ); err != nil { - sent.dropped.Increment() - return err - } - counter.Increment() - return nil -} - -// OnReassemblyTimeout implements fragmentation.TimeoutHandler. -func (p *protocol) OnReassemblyTimeout(pkt *stack.PacketBuffer) { - // OnReassemblyTimeout sends a Time Exceeded Message, as per RFC 792: - // - // If a host reassembling a fragmented datagram cannot complete the - // reassembly due to missing fragments within its time limit it discards the - // datagram, and it may send a time exceeded message. - // - // If fragment zero is not available then no time exceeded need be sent at - // all. - if pkt != nil { - p.returnError(&icmpReasonReassemblyTimeout{}, pkt, true /* deliveredLocally */) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/ipv4/igmp.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/ipv4/igmp.go deleted file mode 100644 index b7a3ce290b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/ipv4/igmp.go +++ /dev/null @@ -1,654 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package ipv4 - -import ( - "fmt" - "math" - "time" - - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/network/internal/ip" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -const ( - // v1RouterPresentTimeout from RFC 2236 Section 8.11, Page 18 - // See note on igmpState.igmpV1Present for more detail. - v1RouterPresentTimeout = 400 * time.Second - - // v1MaxRespTime from RFC 2236 Section 4, Page 5. "The IGMPv1 router - // will send General Queries with the Max Response Time set to 0. This MUST - // be interpreted as a value of 100 (10 seconds)." - // - // Note that the Max Response Time field is a value in units of deciseconds. - v1MaxRespTime = 10 * time.Second - - // UnsolicitedReportIntervalMax is the maximum delay between sending - // unsolicited IGMP reports. - // - // Obtained from RFC 2236 Section 8.10, Page 19. - UnsolicitedReportIntervalMax = 10 * time.Second -) - -type protocolMode int - -const ( - protocolModeV2OrV3 protocolMode = iota - protocolModeV1 - // protocolModeV1Compatibility is for maintaining compatibility with IGMPv1 - // Routers. - // - // Per RFC 2236 Section 4 Page 6: "The IGMPv1 router expects Version 1 - // Membership Reports in response to its Queries, and will not pay - // attention to Version 2 Membership Reports. Therefore, a state variable - // MUST be kept for each interface, describing whether the multicast - // Querier on that interface is running IGMPv1 or IGMPv2. This variable - // MUST be based upon whether or not an IGMPv1 query was heard in the last - // [Version 1 Router Present Timeout] seconds". - protocolModeV1Compatibility -) - -// IGMPVersion is the forced version of IGMP. -type IGMPVersion int - -const ( - _ IGMPVersion = iota - // IGMPVersion1 indicates IGMPv1. - IGMPVersion1 - // IGMPVersion2 indicates IGMPv2. Note that IGMP may still fallback to V1 - // compatibility mode as required by IGMPv2. - IGMPVersion2 - // IGMPVersion3 indicates IGMPv3. Note that IGMP may still fallback to V2 - // compatibility mode as required by IGMPv3. - IGMPVersion3 -) - -// IGMPEndpoint is a network endpoint that supports IGMP. -type IGMPEndpoint interface { - // SetIGMPVersion sets the IGMP version. - // - // Returns the previous IGMP version. - SetIGMPVersion(IGMPVersion) IGMPVersion - - // GetIGMPVersion returns the IGMP version. - GetIGMPVersion() IGMPVersion -} - -// IGMPOptions holds options for IGMP. -// -// +stateify savable -type IGMPOptions struct { - // Enabled indicates whether IGMP will be performed. - // - // When enabled, IGMP may transmit IGMP report and leave messages when - // joining and leaving multicast groups respectively, and handle incoming - // IGMP packets. - // - // This field is ignored and is always assumed to be false for interfaces - // without neighbouring nodes (e.g. loopback). - Enabled bool -} - -var _ ip.MulticastGroupProtocol = (*igmpState)(nil) - -// igmpState is the per-interface IGMP state. -// -// igmpState.init() MUST be called after creating an IGMP state. -// -// +stateify savable -type igmpState struct { - // The IPv4 endpoint this igmpState is for. - ep *endpoint - - genericMulticastProtocol ip.GenericMulticastProtocolState - - // mode is used to configure the version of IGMP to perform. - mode protocolMode - - // igmpV1Job is scheduled when this interface receives an IGMPv1 style - // message, upon expiration the igmpV1Present flag is cleared. - // igmpV1Job may not be nil once igmpState is initialized. - igmpV1Job *tcpip.Job -} - -// Enabled implements ip.MulticastGroupProtocol. -func (igmp *igmpState) Enabled() bool { - // No need to perform IGMP on loopback interfaces since they don't have - // neighbouring nodes. - return igmp.ep.protocol.options.IGMP.Enabled && !igmp.ep.nic.IsLoopback() && igmp.ep.Enabled() -} - -// SendReport implements ip.MulticastGroupProtocol. -// -// +checklocksread:igmp.ep.mu -func (igmp *igmpState) SendReport(groupAddress tcpip.Address) (bool, tcpip.Error) { - igmpType := header.IGMPv2MembershipReport - switch igmp.mode { - case protocolModeV2OrV3: - case protocolModeV1, protocolModeV1Compatibility: - igmpType = header.IGMPv1MembershipReport - default: - panic(fmt.Sprintf("unrecognized mode = %d", igmp.mode)) - } - return igmp.writePacket(groupAddress, groupAddress, igmpType) -} - -// SendLeave implements ip.MulticastGroupProtocol. -// -// +checklocksread:igmp.ep.mu -func (igmp *igmpState) SendLeave(groupAddress tcpip.Address) tcpip.Error { - // As per RFC 2236 Section 6, Page 8: "If the interface state says the - // Querier is running IGMPv1, this action SHOULD be skipped. If the flag - // saying we were the last host to report is cleared, this action MAY be - // skipped." - switch igmp.mode { - case protocolModeV2OrV3: - _, err := igmp.writePacket(header.IPv4AllRoutersGroup, groupAddress, header.IGMPLeaveGroup) - return err - case protocolModeV1, protocolModeV1Compatibility: - return nil - default: - panic(fmt.Sprintf("unrecognized mode = %d", igmp.mode)) - } -} - -// ShouldPerformProtocol implements ip.MulticastGroupProtocol. -func (igmp *igmpState) ShouldPerformProtocol(groupAddress tcpip.Address) bool { - // As per RFC 2236 section 6 page 10, - // - // The all-systems group (address 224.0.0.1) is handled as a special - // case. The host starts in Idle Member state for that group on every - // interface, never transitions to another state, and never sends a - // report for that group. - return groupAddress != header.IPv4AllSystems -} - -type igmpv3ReportBuilder struct { - igmp *igmpState - - records []header.IGMPv3ReportGroupAddressRecordSerializer -} - -// AddRecord implements ip.MulticastGroupProtocolV2ReportBuilder. -func (b *igmpv3ReportBuilder) AddRecord(genericRecordType ip.MulticastGroupProtocolV2ReportRecordType, groupAddress tcpip.Address) { - var recordType header.IGMPv3ReportRecordType - switch genericRecordType { - case ip.MulticastGroupProtocolV2ReportRecordModeIsInclude: - recordType = header.IGMPv3ReportRecordModeIsInclude - case ip.MulticastGroupProtocolV2ReportRecordModeIsExclude: - recordType = header.IGMPv3ReportRecordModeIsExclude - case ip.MulticastGroupProtocolV2ReportRecordChangeToIncludeMode: - recordType = header.IGMPv3ReportRecordChangeToIncludeMode - case ip.MulticastGroupProtocolV2ReportRecordChangeToExcludeMode: - recordType = header.IGMPv3ReportRecordChangeToExcludeMode - case ip.MulticastGroupProtocolV2ReportRecordAllowNewSources: - recordType = header.IGMPv3ReportRecordAllowNewSources - case ip.MulticastGroupProtocolV2ReportRecordBlockOldSources: - recordType = header.IGMPv3ReportRecordBlockOldSources - default: - panic(fmt.Sprintf("unrecognied genericRecordType = %d", genericRecordType)) - } - - b.records = append(b.records, header.IGMPv3ReportGroupAddressRecordSerializer{ - RecordType: recordType, - GroupAddress: groupAddress, - Sources: nil, - }) -} - -// Send implements ip.MulticastGroupProtocolV2ReportBuilder. -// -// +checklocksread:b.igmp.ep.mu -func (b *igmpv3ReportBuilder) Send() (sent bool, err tcpip.Error) { - if len(b.records) == 0 { - return false, err - } - - options := header.IPv4OptionsSerializer{ - &header.IPv4SerializableRouterAlertOption{}, - } - mtu := int(b.igmp.ep.MTU()) - int(options.Length()) - - allSentWithSpecifiedAddress := true - var firstErr tcpip.Error - for records := b.records; len(records) != 0; { - spaceLeft := mtu - maxRecords := 0 - - for ; maxRecords < len(records); maxRecords++ { - tmp := spaceLeft - records[maxRecords].Length() - if tmp > 0 { - spaceLeft = tmp - } else { - break - } - } - - serializer := header.IGMPv3ReportSerializer{Records: records[:maxRecords]} - records = records[maxRecords:] - - icmpView := buffer.NewViewSize(serializer.Length()) - serializer.SerializeInto(icmpView.AsSlice()) - if sentWithSpecifiedAddress, err := b.igmp.writePacketInner( - icmpView, - b.igmp.ep.stats.igmp.packetsSent.v3MembershipReport, - options, - header.IGMPv3RoutersAddress, - ); err != nil { - if firstErr != nil { - firstErr = nil - } - allSentWithSpecifiedAddress = false - } else if !sentWithSpecifiedAddress { - allSentWithSpecifiedAddress = false - } - } - - return allSentWithSpecifiedAddress, firstErr -} - -// NewReportV2Builder implements ip.MulticastGroupProtocol. -func (igmp *igmpState) NewReportV2Builder() ip.MulticastGroupProtocolV2ReportBuilder { - return &igmpv3ReportBuilder{igmp: igmp} -} - -// V2QueryMaxRespCodeToV2Delay implements ip.MulticastGroupProtocol. -func (*igmpState) V2QueryMaxRespCodeToV2Delay(code uint16) time.Duration { - if code > math.MaxUint8 { - panic(fmt.Sprintf("got IGMPv3 MaxRespCode = %d, want <= %d", code, math.MaxUint8)) - } - return header.IGMPv3MaximumResponseDelay(uint8(code)) -} - -// V2QueryMaxRespCodeToV1Delay implements ip.MulticastGroupProtocol. -func (*igmpState) V2QueryMaxRespCodeToV1Delay(code uint16) time.Duration { - return time.Duration(code) * time.Millisecond -} - -// init sets up an igmpState struct, and is required to be called before using -// a new igmpState. -// -// Must only be called once for the lifetime of igmp. -func (igmp *igmpState) init(ep *endpoint) { - igmp.ep = ep - igmp.genericMulticastProtocol.Init(&ep.mu, ip.GenericMulticastProtocolOptions{ - Rand: ep.protocol.stack.InsecureRNG(), - Clock: ep.protocol.stack.Clock(), - Protocol: igmp, - MaxUnsolicitedReportDelay: UnsolicitedReportIntervalMax, - }) - // As per RFC 2236 Page 9 says "No IGMPv1 Router Present ... is - // the initial state. - igmp.mode = protocolModeV2OrV3 - igmp.igmpV1Job = tcpip.NewJob(ep.protocol.stack.Clock(), &ep.mu, func() { - igmp.mode = protocolModeV2OrV3 - }) -} - -// +checklocks:igmp.ep.mu -func (igmp *igmpState) isSourceIPValidLocked(src tcpip.Address, messageType header.IGMPType) bool { - if messageType == header.IGMPMembershipQuery { - // RFC 2236 does not require the IGMP implementation to check the source IP - // for Membership Query messages. - return true - } - - // As per RFC 2236 section 10, - // - // Ignore the Report if you cannot identify the source address of the - // packet as belonging to a subnet assigned to the interface on which the - // packet was received. - // - // Ignore the Leave message if you cannot identify the source address of - // the packet as belonging to a subnet assigned to the interface on which - // the packet was received. - // - // Note: this rule applies to both V1 and V2 Membership Reports. - var isSourceIPValid bool - igmp.ep.addressableEndpointState.ForEachPrimaryEndpoint(func(addressEndpoint stack.AddressEndpoint) bool { - if subnet := addressEndpoint.Subnet(); subnet.Contains(src) { - isSourceIPValid = true - return false - } - return true - }) - - return isSourceIPValid -} - -// +checklocks:igmp.ep.mu -func (igmp *igmpState) isPacketValidLocked(pkt *stack.PacketBuffer, messageType header.IGMPType, hasRouterAlertOption bool) bool { - // We can safely assume that the IP header is valid if we got this far. - iph := header.IPv4(pkt.NetworkHeader().Slice()) - - // As per RFC 2236 section 2, - // - // All IGMP messages described in this document are sent with IP TTL 1, and - // contain the IP Router Alert option [RFC 2113] in their IP header. - if !hasRouterAlertOption || iph.TTL() != header.IGMPTTL { - return false - } - - return igmp.isSourceIPValidLocked(iph.SourceAddress(), messageType) -} - -// handleIGMP handles an IGMP packet. -// -// +checklocks:igmp.ep.mu -func (igmp *igmpState) handleIGMP(pkt *stack.PacketBuffer, hasRouterAlertOption bool) { - received := igmp.ep.stats.igmp.packetsReceived - hdr, ok := pkt.Data().PullUp(pkt.Data().Size()) - if !ok { - received.invalid.Increment() - return - } - h := header.IGMP(hdr) - if len(h) < header.IGMPMinimumSize { - received.invalid.Increment() - return - } - - // As per RFC 1071 section 1.3, - // - // To check a checksum, the 1's complement sum is computed over the - // same set of octets, including the checksum field. If the result - // is all 1 bits (-0 in 1's complement arithmetic), the check - // succeeds. - if pkt.Data().Checksum() != 0xFFFF { - received.checksumErrors.Increment() - return - } - - isValid := func(minimumSize int) bool { - return len(hdr) >= minimumSize && igmp.isPacketValidLocked(pkt, h.Type(), hasRouterAlertOption) - } - - switch h.Type() { - case header.IGMPMembershipQuery: - received.membershipQuery.Increment() - if len(h) >= header.IGMPv3QueryMinimumSize { - if isValid(header.IGMPv3QueryMinimumSize) { - igmp.handleMembershipQueryV3(header.IGMPv3Query(h)) - } else { - received.invalid.Increment() - } - return - } else if !isValid(header.IGMPQueryMinimumSize) { - received.invalid.Increment() - return - } - igmp.handleMembershipQuery(h.GroupAddress(), h.MaxRespTime()) - case header.IGMPv1MembershipReport: - received.v1MembershipReport.Increment() - if !isValid(header.IGMPReportMinimumSize) { - received.invalid.Increment() - return - } - igmp.handleMembershipReport(h.GroupAddress()) - case header.IGMPv2MembershipReport: - received.v2MembershipReport.Increment() - if !isValid(header.IGMPReportMinimumSize) { - received.invalid.Increment() - return - } - igmp.handleMembershipReport(h.GroupAddress()) - case header.IGMPLeaveGroup: - received.leaveGroup.Increment() - if !isValid(header.IGMPLeaveMessageMinimumSize) { - received.invalid.Increment() - return - } - // As per RFC 2236 Section 6, Page 7: "IGMP messages other than Query or - // Report, are ignored in all states" - - default: - // As per RFC 2236 Section 2.1 Page 3: "Unrecognized message types should - // be silently ignored. New message types may be used by newer versions of - // IGMP, by multicast routing protocols, or other uses." - received.unrecognized.Increment() - } -} - -func (igmp *igmpState) resetV1Present() { - igmp.igmpV1Job.Cancel() - switch igmp.mode { - case protocolModeV2OrV3, protocolModeV1: - case protocolModeV1Compatibility: - igmp.mode = protocolModeV2OrV3 - default: - panic(fmt.Sprintf("unrecognized mode = %d", igmp.mode)) - } -} - -// handleMembershipQuery handles a membership query. -// -// +checklocks:igmp.ep.mu -func (igmp *igmpState) handleMembershipQuery(groupAddress tcpip.Address, maxRespTime time.Duration) { - // As per RFC 2236 Section 6, Page 10: If the maximum response time is zero - // then change the state to note that an IGMPv1 router is present and - // schedule the query received Job. - if maxRespTime == 0 && igmp.Enabled() { - switch igmp.mode { - case protocolModeV2OrV3, protocolModeV1Compatibility: - igmp.igmpV1Job.Cancel() - igmp.igmpV1Job.Schedule(v1RouterPresentTimeout) - igmp.mode = protocolModeV1Compatibility - case protocolModeV1: - default: - panic(fmt.Sprintf("unrecognized mode = %d", igmp.mode)) - } - - maxRespTime = v1MaxRespTime - } - - igmp.genericMulticastProtocol.HandleQueryLocked(groupAddress, maxRespTime) -} - -// handleMembershipQueryV3 handles a membership query. -// -// +checklocks:igmp.ep.mu -func (igmp *igmpState) handleMembershipQueryV3(igmpHdr header.IGMPv3Query) { - sources, ok := igmpHdr.Sources() - if !ok { - return - } - - igmp.genericMulticastProtocol.HandleQueryV2Locked( - igmpHdr.GroupAddress(), - uint16(igmpHdr.MaximumResponseCode()), - sources, - igmpHdr.QuerierRobustnessVariable(), - igmpHdr.QuerierQueryInterval(), - ) -} - -// handleMembershipReport handles a membership report. -// -// +checklocks:igmp.ep.mu -func (igmp *igmpState) handleMembershipReport(groupAddress tcpip.Address) { - igmp.genericMulticastProtocol.HandleReportLocked(groupAddress) -} - -// writePacket assembles and sends an IGMP packet. -// -// +checklocksread:igmp.ep.mu -func (igmp *igmpState) writePacket(destAddress tcpip.Address, groupAddress tcpip.Address, igmpType header.IGMPType) (bool, tcpip.Error) { - igmpView := buffer.NewViewSize(header.IGMPReportMinimumSize) - igmpData := header.IGMP(igmpView.AsSlice()) - igmpData.SetType(igmpType) - igmpData.SetGroupAddress(groupAddress) - igmpData.SetChecksum(header.IGMPCalculateChecksum(igmpData)) - - var reportType tcpip.MultiCounterStat - sentStats := igmp.ep.stats.igmp.packetsSent - switch igmpType { - case header.IGMPv1MembershipReport: - reportType = sentStats.v1MembershipReport - case header.IGMPv2MembershipReport: - reportType = sentStats.v2MembershipReport - case header.IGMPLeaveGroup: - reportType = sentStats.leaveGroup - default: - panic(fmt.Sprintf("unrecognized igmp type = %d", igmpType)) - } - - return igmp.writePacketInner( - igmpView, - reportType, - header.IPv4OptionsSerializer{ - &header.IPv4SerializableRouterAlertOption{}, - }, - destAddress, - ) -} - -// +checklocksread:igmp.ep.mu -func (igmp *igmpState) writePacketInner(buf *buffer.View, reportStat tcpip.MultiCounterStat, options header.IPv4OptionsSerializer, destAddress tcpip.Address) (bool, tcpip.Error) { - pkt := stack.NewPacketBuffer(stack.PacketBufferOptions{ - ReserveHeaderBytes: int(igmp.ep.MaxHeaderLength()), - Payload: buffer.MakeWithView(buf), - }) - defer pkt.DecRef() - - addressEndpoint := igmp.ep.acquireOutgoingPrimaryAddressRLocked(destAddress, tcpip.Address{} /* srcHint */, false /* allowExpired */) - if addressEndpoint == nil { - return false, nil - } - localAddr := addressEndpoint.AddressWithPrefix().Address - addressEndpoint.DecRef() - addressEndpoint = nil - if err := igmp.ep.addIPHeader(localAddr, destAddress, pkt, stack.NetworkHeaderParams{ - Protocol: header.IGMPProtocolNumber, - TTL: header.IGMPTTL, - TOS: stack.DefaultTOS, - }, options); err != nil { - panic(fmt.Sprintf("failed to add IP header: %s", err)) - } - - sentStats := igmp.ep.stats.igmp.packetsSent - if err := igmp.ep.nic.WritePacketToRemote(header.EthernetAddressFromMulticastIPv4Address(destAddress), pkt); err != nil { - sentStats.dropped.Increment() - return false, err - } - reportStat.Increment() - return true, nil -} - -// joinGroup handles adding a new group to the membership map, setting up the -// IGMP state for the group, and sending and scheduling the required -// messages. -// -// If the group already exists in the membership map, returns -// *tcpip.ErrDuplicateAddress. -// -// +checklocks:igmp.ep.mu -func (igmp *igmpState) joinGroup(groupAddress tcpip.Address) { - igmp.genericMulticastProtocol.JoinGroupLocked(groupAddress) -} - -// isInGroup returns true if the specified group has been joined locally. -// -// +checklocksread:igmp.ep.mu -func (igmp *igmpState) isInGroup(groupAddress tcpip.Address) bool { - return igmp.genericMulticastProtocol.IsLocallyJoinedRLocked(groupAddress) -} - -// leaveGroup handles removing the group from the membership map, cancels any -// delay timers associated with that group, and sends the Leave Group message -// if required. -// -// +checklocks:igmp.ep.mu -func (igmp *igmpState) leaveGroup(groupAddress tcpip.Address) tcpip.Error { - // LeaveGroup returns false only if the group was not joined. - if igmp.genericMulticastProtocol.LeaveGroupLocked(groupAddress) { - return nil - } - - return &tcpip.ErrBadLocalAddress{} -} - -// softLeaveAll leaves all groups from the perspective of IGMP, but remains -// joined locally. -// -// +checklocks:igmp.ep.mu -func (igmp *igmpState) softLeaveAll() { - igmp.genericMulticastProtocol.MakeAllNonMemberLocked() -} - -// initializeAll attempts to initialize the IGMP state for each group that has -// been joined locally. -// -// +checklocks:igmp.ep.mu -func (igmp *igmpState) initializeAll() { - igmp.genericMulticastProtocol.InitializeGroupsLocked() -} - -// sendQueuedReports attempts to send any reports that are queued for sending. -// -// +checklocks:igmp.ep.mu -func (igmp *igmpState) sendQueuedReports() { - igmp.genericMulticastProtocol.SendQueuedReportsLocked() -} - -// setVersion sets the IGMP version. -// -// +checklocks:igmp.ep.mu -func (igmp *igmpState) setVersion(v IGMPVersion) IGMPVersion { - prev := igmp.mode - igmp.igmpV1Job.Cancel() - - var prevGenericModeV1 bool - switch v { - case IGMPVersion3: - prevGenericModeV1 = igmp.genericMulticastProtocol.SetV1ModeLocked(false) - igmp.mode = protocolModeV2OrV3 - case IGMPVersion2: - // IGMPv1 and IGMPv2 map to V1 of the generic multicast protocol. - prevGenericModeV1 = igmp.genericMulticastProtocol.SetV1ModeLocked(true) - igmp.mode = protocolModeV2OrV3 - case IGMPVersion1: - // IGMPv1 and IGMPv2 map to V1 of the generic multicast protocol. - prevGenericModeV1 = igmp.genericMulticastProtocol.SetV1ModeLocked(true) - igmp.mode = protocolModeV1 - default: - panic(fmt.Sprintf("unrecognized version = %d", v)) - } - - return toIGMPVersion(prev, prevGenericModeV1) -} - -func toIGMPVersion(mode protocolMode, genericV1 bool) IGMPVersion { - switch mode { - case protocolModeV2OrV3, protocolModeV1Compatibility: - if genericV1 { - return IGMPVersion2 - } - return IGMPVersion3 - case protocolModeV1: - return IGMPVersion1 - default: - panic(fmt.Sprintf("unrecognized mode = %d", mode)) - } -} - -// getVersion returns the IGMP version. -// -// +checklocksread:igmp.ep.mu -func (igmp *igmpState) getVersion() IGMPVersion { - return toIGMPVersion(igmp.mode, igmp.genericMulticastProtocol.GetV1ModeLocked()) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/ipv4/ipv4.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/ipv4/ipv4.go deleted file mode 100644 index e2721a4db6..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/ipv4/ipv4.go +++ /dev/null @@ -1,2401 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package ipv4 contains the implementation of the ipv4 network protocol. -package ipv4 - -import ( - "fmt" - "math" - "reflect" - "time" - - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/header/parse" - "gvisor.dev/gvisor/pkg/tcpip/network/hash" - "gvisor.dev/gvisor/pkg/tcpip/network/internal/fragmentation" - "gvisor.dev/gvisor/pkg/tcpip/network/internal/ip" - "gvisor.dev/gvisor/pkg/tcpip/network/internal/multicast" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -const ( - // ReassembleTimeout is the time a packet stays in the reassembly - // system before being evicted. - // As per RFC 791 section 3.2: - // The current recommendation for the initial timer setting is 15 seconds. - // This may be changed as experience with this protocol accumulates. - // - // Considering that it is an old recommendation, we use the same reassembly - // timeout that linux defines, which is 30 seconds: - // https://github.com/torvalds/linux/blob/47ec5303d73ea344e84f46660fff693c57641386/include/net/ip.h#L138 - ReassembleTimeout = 30 * time.Second - - // ProtocolNumber is the ipv4 protocol number. - ProtocolNumber = header.IPv4ProtocolNumber - - // MaxTotalSize is maximum size that can be encoded in the 16-bit - // TotalLength field of the ipv4 header. - MaxTotalSize = 0xffff - - // DefaultTTL is the default time-to-live value for this endpoint. - DefaultTTL = 64 - - // buckets is the number of identifier buckets. - buckets = 2048 - - // The size of a fragment block, in bytes, as per RFC 791 section 3.1, - // page 14. - fragmentblockSize = 8 -) - -const ( - forwardingDisabled = 0 - forwardingEnabled = 1 -) - -var ipv4BroadcastAddr = header.IPv4Broadcast.WithPrefix() - -var _ stack.LinkResolvableNetworkEndpoint = (*endpoint)(nil) -var _ stack.ForwardingNetworkEndpoint = (*endpoint)(nil) -var _ stack.MulticastForwardingNetworkEndpoint = (*endpoint)(nil) -var _ stack.GroupAddressableEndpoint = (*endpoint)(nil) -var _ stack.AddressableEndpoint = (*endpoint)(nil) -var _ stack.NetworkEndpoint = (*endpoint)(nil) -var _ IGMPEndpoint = (*endpoint)(nil) - -// +stateify savable -type endpoint struct { - nic stack.NetworkInterface - dispatcher stack.TransportDispatcher - protocol *protocol - stats sharedStats - - // enabled is set to 1 when the endpoint is enabled and 0 when it is - // disabled. - enabled atomicbitops.Uint32 - - // forwarding is set to forwardingEnabled when the endpoint has forwarding - // enabled and forwardingDisabled when it is disabled. - forwarding atomicbitops.Uint32 - - // multicastForwarding is set to forwardingEnabled when the endpoint has - // forwarding enabled and forwardingDisabled when it is disabled. - multicastForwarding atomicbitops.Uint32 - - // mu protects below. - mu sync.RWMutex `state:"nosave"` - - // +checklocks:mu - addressableEndpointState stack.AddressableEndpointState - - // +checklocks:mu - igmp igmpState -} - -// SetIGMPVersion implements IGMPEndpoint. -func (e *endpoint) SetIGMPVersion(v IGMPVersion) IGMPVersion { - e.mu.Lock() - defer e.mu.Unlock() - return e.setIGMPVersionLocked(v) -} - -// GetIGMPVersion implements IGMPEndpoint. -func (e *endpoint) GetIGMPVersion() IGMPVersion { - e.mu.RLock() - defer e.mu.RUnlock() - return e.getIGMPVersionLocked() -} - -// +checklocks:e.mu -// +checklocksalias:e.igmp.ep.mu=e.mu -func (e *endpoint) setIGMPVersionLocked(v IGMPVersion) IGMPVersion { - return e.igmp.setVersion(v) -} - -// +checklocksread:e.mu -// +checklocksalias:e.igmp.ep.mu=e.mu -func (e *endpoint) getIGMPVersionLocked() IGMPVersion { - return e.igmp.getVersion() -} - -// HandleLinkResolutionFailure implements stack.LinkResolvableNetworkEndpoint. -func (e *endpoint) HandleLinkResolutionFailure(pkt *stack.PacketBuffer) { - // If we are operating as a router, return an ICMP error to the original - // packet's sender. - if pkt.NetworkPacketInfo.IsForwardedPacket { - // TODO(gvisor.dev/issue/6005): Propagate asynchronously generated ICMP - // errors to local endpoints. - e.protocol.returnError(&icmpReasonHostUnreachable{}, pkt, false /* deliveredLocally */) - e.stats.ip.Forwarding.Errors.Increment() - e.stats.ip.Forwarding.HostUnreachable.Increment() - return - } - // handleControl expects the entire offending packet to be in the packet - // buffer's data field. - pkt = stack.NewPacketBuffer(stack.PacketBufferOptions{ - Payload: pkt.ToBuffer(), - }) - defer pkt.DecRef() - pkt.NICID = e.nic.ID() - pkt.NetworkProtocolNumber = ProtocolNumber - // Use the same control type as an ICMPv4 destination host unreachable error - // since the host is considered unreachable if we cannot resolve the link - // address to the next hop. - e.handleControl(&icmpv4DestinationHostUnreachableSockError{}, pkt) -} - -// NewEndpoint creates a new ipv4 endpoint. -func (p *protocol) NewEndpoint(nic stack.NetworkInterface, dispatcher stack.TransportDispatcher) stack.NetworkEndpoint { - e := &endpoint{ - nic: nic, - dispatcher: dispatcher, - protocol: p, - } - e.mu.Lock() - e.addressableEndpointState.Init(e, stack.AddressableEndpointStateOptions{HiddenWhileDisabled: false}) - e.igmp.init(e) - e.mu.Unlock() - - tcpip.InitStatCounters(reflect.ValueOf(&e.stats.localStats).Elem()) - - stackStats := p.stack.Stats() - e.stats.ip.Init(&e.stats.localStats.IP, &stackStats.IP) - e.stats.icmp.init(&e.stats.localStats.ICMP, &stackStats.ICMP.V4) - e.stats.igmp.init(&e.stats.localStats.IGMP, &stackStats.IGMP) - - p.mu.Lock() - p.eps[nic.ID()] = e - p.mu.Unlock() - - return e -} - -func (p *protocol) findEndpointWithAddress(addr tcpip.Address) *endpoint { - p.mu.RLock() - defer p.mu.RUnlock() - - for _, e := range p.eps { - if addressEndpoint := e.AcquireAssignedAddress(addr, false /* allowTemp */, stack.NeverPrimaryEndpoint, true /* readOnly */); addressEndpoint != nil { - return e - } - } - - return nil -} - -func (p *protocol) getEndpointForNIC(id tcpip.NICID) (*endpoint, bool) { - p.mu.RLock() - defer p.mu.RUnlock() - ep, ok := p.eps[id] - return ep, ok -} - -func (p *protocol) forgetEndpoint(nicID tcpip.NICID) { - p.mu.Lock() - defer p.mu.Unlock() - delete(p.eps, nicID) -} - -// Forwarding implements stack.ForwardingNetworkEndpoint. -func (e *endpoint) Forwarding() bool { - return e.forwarding.Load() == forwardingEnabled -} - -// setForwarding sets the forwarding status for the endpoint. -// -// Returns the previous forwarding status. -func (e *endpoint) setForwarding(v bool) bool { - forwarding := uint32(forwardingDisabled) - if v { - forwarding = forwardingEnabled - } - - return e.forwarding.Swap(forwarding) != forwardingDisabled -} - -// SetForwarding implements stack.ForwardingNetworkEndpoint. -func (e *endpoint) SetForwarding(forwarding bool) bool { - e.mu.Lock() - defer e.mu.Unlock() - - prevForwarding := e.setForwarding(forwarding) - if prevForwarding == forwarding { - return prevForwarding - } - - if forwarding { - // There does not seem to be an RFC requirement for a node to join the all - // routers multicast address but - // https://www.iana.org/assignments/multicast-addresses/multicast-addresses.xhtml - // specifies the address as a group for all routers on a subnet so we join - // the group here. - if err := e.joinGroupLocked(header.IPv4AllRoutersGroup); err != nil { - // joinGroupLocked only returns an error if the group address is not a - // valid IPv4 multicast address. - panic(fmt.Sprintf("e.joinGroupLocked(%s): %s", header.IPv4AllRoutersGroup, err)) - } - - return prevForwarding - } - - switch err := e.leaveGroupLocked(header.IPv4AllRoutersGroup).(type) { - case nil: - case *tcpip.ErrBadLocalAddress: - // The endpoint may have already left the multicast group. - default: - panic(fmt.Sprintf("e.leaveGroupLocked(%s): %s", header.IPv4AllRoutersGroup, err)) - } - - return prevForwarding -} - -// MulticastForwarding implements stack.MulticastForwardingNetworkEndpoint. -func (e *endpoint) MulticastForwarding() bool { - return e.multicastForwarding.Load() == forwardingEnabled -} - -// SetMulticastForwarding implements stack.MulticastForwardingNetworkEndpoint. -func (e *endpoint) SetMulticastForwarding(forwarding bool) bool { - updatedForwarding := uint32(forwardingDisabled) - if forwarding { - updatedForwarding = forwardingEnabled - } - - return e.multicastForwarding.Swap(updatedForwarding) != forwardingDisabled -} - -// Enable implements stack.NetworkEndpoint. -func (e *endpoint) Enable() tcpip.Error { - e.mu.Lock() - defer e.mu.Unlock() - return e.enableLocked() -} - -// +checklocks:e.mu -// +checklocksalias:e.igmp.ep.mu=e.mu -func (e *endpoint) enableLocked() tcpip.Error { - // If the NIC is not enabled, the endpoint can't do anything meaningful so - // don't enable the endpoint. - if !e.nic.Enabled() { - return &tcpip.ErrNotPermitted{} - } - - // If the endpoint is already enabled, there is nothing for it to do. - if !e.setEnabled(true) { - return nil - } - - // Must be called after Enabled has already been set. - e.addressableEndpointState.OnNetworkEndpointEnabledChanged() - - // Create an endpoint to receive broadcast packets on this interface. - ep, err := e.addressableEndpointState.AddAndAcquirePermanentAddress(ipv4BroadcastAddr, stack.AddressProperties{PEB: stack.NeverPrimaryEndpoint}) - if err != nil { - return err - } - // We have no need for the address endpoint. - ep.DecRef() - - // Groups may have been joined while the endpoint was disabled, or the - // endpoint may have left groups from the perspective of IGMP when the - // endpoint was disabled. Either way, we need to let routers know to - // send us multicast traffic. - e.igmp.initializeAll() - - // As per RFC 1122 section 3.3.7, all hosts should join the all-hosts - // multicast group. Note, the IANA calls the all-hosts multicast group the - // all-systems multicast group. - if err := e.joinGroupLocked(header.IPv4AllSystems); err != nil { - // joinGroupLocked only returns an error if the group address is not a valid - // IPv4 multicast address. - panic(fmt.Sprintf("e.joinGroupLocked(%s): %s", header.IPv4AllSystems, err)) - } - - return nil -} - -// Enabled implements stack.NetworkEndpoint. -func (e *endpoint) Enabled() bool { - return e.nic.Enabled() && e.isEnabled() -} - -// isEnabled returns true if the endpoint is enabled, regardless of the -// enabled status of the NIC. -func (e *endpoint) isEnabled() bool { - return e.enabled.Load() == 1 -} - -// setEnabled sets the enabled status for the endpoint. -// -// Returns true if the enabled status was updated. -func (e *endpoint) setEnabled(v bool) bool { - if v { - return e.enabled.Swap(1) == 0 - } - return e.enabled.Swap(0) == 1 -} - -// Disable implements stack.NetworkEndpoint. -func (e *endpoint) Disable() { - e.mu.Lock() - defer e.mu.Unlock() - e.disableLocked() -} - -// +checklocks:e.mu -// +checklocksalias:e.igmp.ep.mu=e.mu -func (e *endpoint) disableLocked() { - if !e.isEnabled() { - return - } - - // The endpoint may have already left the multicast group. - switch err := e.leaveGroupLocked(header.IPv4AllSystems).(type) { - case nil, *tcpip.ErrBadLocalAddress: - default: - panic(fmt.Sprintf("unexpected error when leaving group = %s: %s", header.IPv4AllSystems, err)) - } - - // Leave groups from the perspective of IGMP so that routers know that - // we are no longer interested in the group. - e.igmp.softLeaveAll() - - // The address may have already been removed. - switch err := e.addressableEndpointState.RemovePermanentAddress(ipv4BroadcastAddr.Address); err.(type) { - case nil, *tcpip.ErrBadLocalAddress: - default: - panic(fmt.Sprintf("unexpected error when removing address = %s: %s", ipv4BroadcastAddr.Address, err)) - } - - // Reset the IGMP V1 present flag. - // - // If the node comes back up on the same network, it will re-learn that it - // needs to perform IGMPv1. - e.igmp.resetV1Present() - - if !e.setEnabled(false) { - panic("should have only done work to disable the endpoint if it was enabled") - } - - // Must be called after Enabled has been set. - e.addressableEndpointState.OnNetworkEndpointEnabledChanged() -} - -// emitMulticastEvent emits a multicast forwarding event using the provided -// generator if a valid event dispatcher exists. -func (e *endpoint) emitMulticastEvent(eventGenerator func(stack.MulticastForwardingEventDispatcher)) { - e.protocol.mu.RLock() - defer e.protocol.mu.RUnlock() - - if mcastDisp := e.protocol.multicastForwardingDisp; mcastDisp != nil { - eventGenerator(mcastDisp) - } -} - -// DefaultTTL is the default time-to-live value for this endpoint. -func (e *endpoint) DefaultTTL() uint8 { - return e.protocol.DefaultTTL() -} - -// MTU implements stack.NetworkEndpoint. It returns the link-layer MTU minus the -// network layer max header length. -func (e *endpoint) MTU() uint32 { - networkMTU, err := calculateNetworkMTU(e.nic.MTU(), header.IPv4MinimumSize) - if err != nil { - return 0 - } - return networkMTU -} - -// MaxHeaderLength returns the maximum length needed by ipv4 headers (and -// underlying protocols). -func (e *endpoint) MaxHeaderLength() uint16 { - return e.nic.MaxHeaderLength() + header.IPv4MaximumHeaderSize -} - -// NetworkProtocolNumber implements stack.NetworkEndpoint. -func (e *endpoint) NetworkProtocolNumber() tcpip.NetworkProtocolNumber { - return e.protocol.Number() -} - -// getID returns a random uint16 number (other than zero) to be used as ID in -// the IPv4 header. -func (e *endpoint) getID() uint16 { - rng := e.protocol.stack.SecureRNG() - id := rng.Uint16() - for id == 0 { - id = rng.Uint16() - } - return id -} - -func (e *endpoint) addIPHeader(srcAddr, dstAddr tcpip.Address, pkt *stack.PacketBuffer, params stack.NetworkHeaderParams, options header.IPv4OptionsSerializer) tcpip.Error { - hdrLen := header.IPv4MinimumSize - var optLen int - if options != nil { - optLen = int(options.Length()) - } - hdrLen += optLen - if hdrLen > header.IPv4MaximumHeaderSize { - return &tcpip.ErrMessageTooLong{} - } - ipH := header.IPv4(pkt.NetworkHeader().Push(hdrLen)) - length := pkt.Size() - if length > math.MaxUint16 { - return &tcpip.ErrMessageTooLong{} - } - - fields := header.IPv4Fields{ - TotalLength: uint16(length), - TTL: params.TTL, - TOS: params.TOS, - Protocol: uint8(params.Protocol), - SrcAddr: srcAddr, - DstAddr: dstAddr, - Options: options, - } - if params.DF { - // Treat want and do the same. - fields.Flags = header.IPv4FlagDontFragment - } else { - // RFC 6864 section 4.3 mandates uniqueness of ID values for - // non-atomic datagrams. - fields.ID = e.getID() - } - ipH.Encode(&fields) - - ipH.SetChecksum(^ipH.CalculateChecksum()) - pkt.NetworkProtocolNumber = ProtocolNumber - return nil -} - -// handleFragments fragments pkt and calls the handler function on each -// fragment. It returns the number of fragments handled and the number of -// fragments left to be processed. The IP header must already be present in the -// original packet. -func (e *endpoint) handleFragments(_ *stack.Route, networkMTU uint32, pkt *stack.PacketBuffer, handler func(*stack.PacketBuffer) tcpip.Error) (int, int, tcpip.Error) { - // Round the MTU down to align to 8 bytes. - fragmentPayloadSize := networkMTU &^ 7 - networkHeader := header.IPv4(pkt.NetworkHeader().Slice()) - pf := fragmentation.MakePacketFragmenter(pkt, fragmentPayloadSize, pkt.AvailableHeaderBytes()+len(networkHeader)) - defer pf.Release() - - var n int - for { - fragPkt, more := buildNextFragment(&pf, networkHeader) - err := handler(fragPkt) - fragPkt.DecRef() - if err != nil { - return n, pf.RemainingFragmentCount() + 1, err - } - n++ - if !more { - return n, pf.RemainingFragmentCount(), nil - } - } -} - -// WritePacket writes a packet to the given destination address and protocol. -func (e *endpoint) WritePacket(r *stack.Route, params stack.NetworkHeaderParams, pkt *stack.PacketBuffer) tcpip.Error { - if err := e.addIPHeader(r.LocalAddress(), r.RemoteAddress(), pkt, params, nil /* options */); err != nil { - return err - } - - return e.writePacket(r, pkt) -} - -func (e *endpoint) writePacket(r *stack.Route, pkt *stack.PacketBuffer) tcpip.Error { - netHeader := header.IPv4(pkt.NetworkHeader().Slice()) - dstAddr := netHeader.DestinationAddress() - - // iptables filtering. All packets that reach here are locally - // generated. - outNicName := e.protocol.stack.FindNICNameFromID(e.nic.ID()) - if ok := e.protocol.stack.IPTables().CheckOutput(pkt, r, outNicName); !ok { - // iptables is telling us to drop the packet. - e.stats.ip.IPTablesOutputDropped.Increment() - return nil - } - - // If the packet is manipulated as per DNAT Output rules, handle packet - // based on destination address and do not send the packet to link - // layer. - // - // We should do this for every packet, rather than only DNATted packets, but - // removing this check short circuits broadcasts before they are sent out to - // other hosts. - if newDstAddr := netHeader.DestinationAddress(); dstAddr != newDstAddr { - if ep := e.protocol.findEndpointWithAddress(newDstAddr); ep != nil { - // Since we rewrote the packet but it is being routed back to us, we - // can safely assume the checksum is valid. - ep.handleLocalPacket(pkt, true /* canSkipRXChecksum */) - return nil - } - } - - return e.writePacketPostRouting(r, pkt, false /* headerIncluded */) -} - -func (e *endpoint) writePacketPostRouting(r *stack.Route, pkt *stack.PacketBuffer, headerIncluded bool) tcpip.Error { - if r.Loop()&stack.PacketLoop != 0 { - // If the packet was generated by the stack (not a raw/packet endpoint - // where a packet may be written with the header included), then we can - // safely assume the checksum is valid. - e.handleLocalPacket(pkt, !headerIncluded /* canSkipRXChecksum */) - } - if r.Loop()&stack.PacketOut == 0 { - return nil - } - - // Postrouting NAT can only change the source address, and does not alter the - // route or outgoing interface of the packet. - outNicName := e.protocol.stack.FindNICNameFromID(e.nic.ID()) - if ok := e.protocol.stack.IPTables().CheckPostrouting(pkt, r, e, outNicName); !ok { - // iptables is telling us to drop the packet. - e.stats.ip.IPTablesPostroutingDropped.Increment() - return nil - } - - stats := e.stats.ip - - networkMTU, err := calculateNetworkMTU(e.nic.MTU(), uint32(len(pkt.NetworkHeader().Slice()))) - if err != nil { - stats.OutgoingPacketErrors.Increment() - return err - } - - if packetMustBeFragmented(pkt, networkMTU) { - h := header.IPv4(pkt.NetworkHeader().Slice()) - if h.Flags()&header.IPv4FlagDontFragment != 0 && pkt.NetworkPacketInfo.IsForwardedPacket { - // TODO(gvisor.dev/issue/5919): Handle error condition in which DontFragment - // is set but the packet must be fragmented for the non-forwarding case. - return &tcpip.ErrMessageTooLong{} - } - sent, remain, err := e.handleFragments(r, networkMTU, pkt, func(fragPkt *stack.PacketBuffer) tcpip.Error { - // TODO(gvisor.dev/issue/3884): Evaluate whether we want to send each - // fragment one by one using WritePacket() (current strategy) or if we - // want to create a PacketBufferList from the fragments and feed it to - // WritePackets(). It'll be faster but cost more memory. - return e.nic.WritePacket(r, fragPkt) - }) - stats.PacketsSent.IncrementBy(uint64(sent)) - stats.OutgoingPacketErrors.IncrementBy(uint64(remain)) - return err - } - - if err := e.nic.WritePacket(r, pkt); err != nil { - stats.OutgoingPacketErrors.Increment() - return err - } - stats.PacketsSent.Increment() - return nil -} - -// WriteHeaderIncludedPacket implements stack.NetworkEndpoint. -func (e *endpoint) WriteHeaderIncludedPacket(r *stack.Route, pkt *stack.PacketBuffer) tcpip.Error { - // The packet already has an IP header, but there are a few required - // checks. - h, ok := pkt.Data().PullUp(header.IPv4MinimumSize) - if !ok { - return &tcpip.ErrMalformedHeader{} - } - - hdrLen := header.IPv4(h).HeaderLength() - if hdrLen < header.IPv4MinimumSize { - return &tcpip.ErrMalformedHeader{} - } - - h, ok = pkt.Data().PullUp(int(hdrLen)) - if !ok { - return &tcpip.ErrMalformedHeader{} - } - ipH := header.IPv4(h) - - // Always set the total length. - pktSize := pkt.Data().Size() - ipH.SetTotalLength(uint16(pktSize)) - - // Set the source address when zero. - if ipH.SourceAddress() == header.IPv4Any { - ipH.SetSourceAddress(r.LocalAddress()) - } - - // Set the packet ID when zero. - if ipH.ID() == 0 { - // RFC 6864 section 4.3 mandates uniqueness of ID values for - // non-atomic datagrams, so assign an ID to all such datagrams - // according to the definition given in RFC 6864 section 4. - if ipH.Flags()&header.IPv4FlagDontFragment == 0 || ipH.Flags()&header.IPv4FlagMoreFragments != 0 || ipH.FragmentOffset() > 0 { - ipH.SetID(e.getID()) - } - } - - // Always set the checksum. - ipH.SetChecksum(0) - ipH.SetChecksum(^ipH.CalculateChecksum()) - - // Populate the packet buffer's network header and don't allow an invalid - // packet to be sent. - // - // Note that parsing only makes sure that the packet is well formed as per the - // wire format. We also want to check if the header's fields are valid before - // sending the packet. - if !parse.IPv4(pkt) || !header.IPv4(pkt.NetworkHeader().Slice()).IsValid(pktSize) { - return &tcpip.ErrMalformedHeader{} - } - - return e.writePacketPostRouting(r, pkt, true /* headerIncluded */) -} - -// forwardPacketWithRoute emits the pkt using the provided route. -// -// If updateOptions is true, then the IP options will be updated in the copied -// pkt using the outgoing endpoint. Otherwise, the caller is responsible for -// updating the options. -// -// This method should be invoked by the endpoint that received the pkt. -func (e *endpoint) forwardPacketWithRoute(route *stack.Route, pkt *stack.PacketBuffer, updateOptions bool) ip.ForwardingError { - h := header.IPv4(pkt.NetworkHeader().Slice()) - stk := e.protocol.stack - - inNicName := stk.FindNICNameFromID(e.nic.ID()) - outNicName := stk.FindNICNameFromID(route.NICID()) - if ok := stk.IPTables().CheckForward(pkt, inNicName, outNicName); !ok { - // iptables is telling us to drop the packet. - e.stats.ip.IPTablesForwardDropped.Increment() - return nil - } - - // We need to do a deep copy of the IP packet because - // WriteHeaderIncludedPacket may modify the packet buffer, but we do - // not own it. - // - // TODO(https://gvisor.dev/issue/7473): For multicast, only create one deep - // copy and then clone. - newPkt := pkt.DeepCopyForForwarding(int(route.MaxHeaderLength())) - newHdr := header.IPv4(newPkt.NetworkHeader().Slice()) - defer newPkt.DecRef() - - forwardToEp, ok := e.protocol.getEndpointForNIC(route.NICID()) - if !ok { - return &ip.ErrUnknownOutputEndpoint{} - } - - if updateOptions { - if err := forwardToEp.updateOptionsForForwarding(newPkt); err != nil { - return err - } - } - - ttl := h.TTL() - // As per RFC 791 page 30, Time to Live, - // - // This field must be decreased at each point that the internet header - // is processed to reflect the time spent processing the datagram. - // Even if no local information is available on the time actually - // spent, the field must be decremented by 1. - newHdr.SetTTL(ttl - 1) - // We perform a full checksum as we may have updated options above. The IP - // header is relatively small so this is not expected to be an expensive - // operation. - newHdr.SetChecksum(0) - newHdr.SetChecksum(^newHdr.CalculateChecksum()) - - switch err := forwardToEp.writePacketPostRouting(route, newPkt, true /* headerIncluded */); err.(type) { - case nil: - return nil - case *tcpip.ErrMessageTooLong: - // As per RFC 792, page 4, Destination Unreachable: - // - // Another case is when a datagram must be fragmented to be forwarded by a - // gateway yet the Don't Fragment flag is on. In this case the gateway must - // discard the datagram and may return a destination unreachable message. - // - // WriteHeaderIncludedPacket checks for the presence of the Don't Fragment bit - // while sending the packet and returns this error iff fragmentation is - // necessary and the bit is also set. - _ = e.protocol.returnError(&icmpReasonFragmentationNeeded{}, pkt, false /* deliveredLocally */) - return &ip.ErrMessageTooLong{} - case *tcpip.ErrNoBufferSpace: - return &ip.ErrOutgoingDeviceNoBufferSpace{} - default: - return &ip.ErrOther{Err: err} - } -} - -// forwardUnicastPacket attempts to forward a packet to its final destination. -func (e *endpoint) forwardUnicastPacket(pkt *stack.PacketBuffer) ip.ForwardingError { - hView := pkt.NetworkHeader().View() - defer hView.Release() - h := header.IPv4(hView.AsSlice()) - - dstAddr := h.DestinationAddress() - - if err := validateAddressesForForwarding(h); err != nil { - return err - } - - ttl := h.TTL() - if ttl == 0 { - // As per RFC 792 page 6, Time Exceeded Message, - // - // If the gateway processing a datagram finds the time to live field - // is zero it must discard the datagram. The gateway may also notify - // the source host via the time exceeded message. - // - // We return the original error rather than the result of returning - // the ICMP packet because the original error is more relevant to - // the caller. - _ = e.protocol.returnError(&icmpReasonTTLExceeded{}, pkt, false /* deliveredLocally */) - return &ip.ErrTTLExceeded{} - } - - if err := e.updateOptionsForForwarding(pkt); err != nil { - return err - } - - stk := e.protocol.stack - - // Check if the destination is owned by the stack. - if ep := e.protocol.findEndpointWithAddress(dstAddr); ep != nil { - inNicName := stk.FindNICNameFromID(e.nic.ID()) - outNicName := stk.FindNICNameFromID(ep.nic.ID()) - if ok := stk.IPTables().CheckForward(pkt, inNicName, outNicName); !ok { - // iptables is telling us to drop the packet. - e.stats.ip.IPTablesForwardDropped.Increment() - return nil - } - - // The packet originally arrived on e so provide its NIC as the input NIC. - ep.handleValidatedPacket(h, pkt, e.nic.Name() /* inNICName */) - return nil - } - - r, err := stk.FindRoute(0, tcpip.Address{}, dstAddr, ProtocolNumber, false /* multicastLoop */) - switch err.(type) { - case nil: - // TODO(https://gvisor.dev/issues/8105): We should not observe ErrHostUnreachable from route - // lookups. - case *tcpip.ErrHostUnreachable, *tcpip.ErrNetworkUnreachable: - // We return the original error rather than the result of returning - // the ICMP packet because the original error is more relevant to - // the caller. - _ = e.protocol.returnError(&icmpReasonNetworkUnreachable{}, pkt, false /* deliveredLocally */) - return &ip.ErrHostUnreachable{} - default: - return &ip.ErrOther{Err: err} - } - defer r.Release() - - // TODO(https://gvisor.dev/issue/7472): Unicast IP options should be updated - // using the output endpoint (instead of the input endpoint). In particular, - // RFC 1812 section 5.2.1 states the following: - // - // Processing of certain IP options requires that the router insert its IP - // address into the option. As noted in Section [5.2.4], the address - // inserted MUST be the address of the logical interface on which the - // packet is sent or the router's router-id if the packet is sent over an - // unnumbered interface. Thus, processing of these options cannot be - // completed until after the output interface is chosen. - return e.forwardPacketWithRoute(r, pkt, false /* updateOptions */) -} - -// HandlePacket is called by the link layer when new ipv4 packets arrive for -// this endpoint. -func (e *endpoint) HandlePacket(pkt *stack.PacketBuffer) { - stats := e.stats.ip - - stats.PacketsReceived.Increment() - - if !e.isEnabled() { - stats.DisabledPacketsReceived.Increment() - return - } - - hView, ok := e.protocol.parseAndValidate(pkt) - if !ok { - stats.MalformedPacketsReceived.Increment() - return - } - h := header.IPv4(hView.AsSlice()) - defer hView.Release() - - if !e.nic.IsLoopback() { - if !e.protocol.options.AllowExternalLoopbackTraffic { - if header.IsV4LoopbackAddress(h.SourceAddress()) { - stats.InvalidSourceAddressesReceived.Increment() - return - } - - if header.IsV4LoopbackAddress(h.DestinationAddress()) { - stats.InvalidDestinationAddressesReceived.Increment() - return - } - } - - if e.protocol.stack.HandleLocal() { - addressEndpoint := e.AcquireAssignedAddress(header.IPv4(pkt.NetworkHeader().Slice()).SourceAddress(), e.nic.Promiscuous(), stack.CanBePrimaryEndpoint, true /* readOnly */) - if addressEndpoint != nil { - // The source address is one of our own, so we never should have gotten - // a packet like this unless HandleLocal is false or our NIC is the - // loopback interface. - stats.InvalidSourceAddressesReceived.Increment() - return - } - } - - // Loopback traffic skips the prerouting chain. - inNicName := e.protocol.stack.FindNICNameFromID(e.nic.ID()) - if ok := e.protocol.stack.IPTables().CheckPrerouting(pkt, e, inNicName); !ok { - // iptables is telling us to drop the packet. - stats.IPTablesPreroutingDropped.Increment() - return - } - } - - e.handleValidatedPacket(h, pkt, e.nic.Name() /* inNICName */) -} - -// handleLocalPacket is like HandlePacket except it does not perform the -// prerouting iptables hook or check for loopback traffic that originated from -// outside of the netstack (i.e. martian loopback packets). -func (e *endpoint) handleLocalPacket(pkt *stack.PacketBuffer, canSkipRXChecksum bool) { - stats := e.stats.ip - stats.PacketsReceived.Increment() - - pkt = pkt.CloneToInbound() - defer pkt.DecRef() - pkt.RXChecksumValidated = canSkipRXChecksum - - hView, ok := e.protocol.parseAndValidate(pkt) - if !ok { - stats.MalformedPacketsReceived.Increment() - return - } - h := header.IPv4(hView.AsSlice()) - defer hView.Release() - - e.handleValidatedPacket(h, pkt, e.nic.Name() /* inNICName */) -} - -func validateAddressesForForwarding(h header.IPv4) ip.ForwardingError { - srcAddr := h.SourceAddress() - - // As per RFC 5735 section 3, - // - // 0.0.0.0/8 - Addresses in this block refer to source hosts on "this" - // network. Address 0.0.0.0/32 may be used as a source address for this - // host on this network; other addresses within 0.0.0.0/8 may be used to - // refer to specified hosts on this network ([RFC1122], Section 3.2.1.3). - // - // And RFC 6890 section 2.2.2, - // - // +----------------------+----------------------------+ - // | Attribute | Value | - // +----------------------+----------------------------+ - // | Address Block | 0.0.0.0/8 | - // | Name | "This host on this network"| - // | RFC | [RFC1122], Section 3.2.1.3 | - // | Allocation Date | September 1981 | - // | Termination Date | N/A | - // | Source | True | - // | Destination | False | - // | Forwardable | False | - // | Global | False | - // | Reserved-by-Protocol | True | - // +----------------------+----------------------------+ - if header.IPv4CurrentNetworkSubnet.Contains(srcAddr) { - return &ip.ErrInitializingSourceAddress{} - } - - // As per RFC 3927 section 7, - // - // A router MUST NOT forward a packet with an IPv4 Link-Local source or - // destination address, irrespective of the router's default route - // configuration or routes obtained from dynamic routing protocols. - // - // A router which receives a packet with an IPv4 Link-Local source or - // destination address MUST NOT forward the packet. This prevents - // forwarding of packets back onto the network segment from which they - // originated, or to any other segment. - if header.IsV4LinkLocalUnicastAddress(srcAddr) { - return &ip.ErrLinkLocalSourceAddress{} - } - if dstAddr := h.DestinationAddress(); header.IsV4LinkLocalUnicastAddress(dstAddr) || header.IsV4LinkLocalMulticastAddress(dstAddr) { - return &ip.ErrLinkLocalDestinationAddress{} - } - return nil -} - -// forwardMulticastPacket validates a multicast pkt and attempts to forward it. -// -// This method should be invoked for incoming multicast packets using the -// endpoint that received the packet. -func (e *endpoint) forwardMulticastPacket(h header.IPv4, pkt *stack.PacketBuffer) ip.ForwardingError { - if err := validateAddressesForForwarding(h); err != nil { - return err - } - - if opts := h.Options(); len(opts) != 0 { - // Check if the options are valid, but don't mutate them. This corresponds - // to step 3 of RFC 1812 section 5.2.1.1. - if _, _, optProblem := e.processIPOptions(pkt, opts, &optionUsageVerify{}); optProblem != nil { - // Per RFC 1812 section 4.3.2.7, an ICMP error message should not be - // sent for: - // - // A packet destined to an IP broadcast or IP multicast address. - // - // Note that protocol.returnError also enforces this requirement. - // However, we intentionally omit it here since this path is multicast - // only. - return &ip.ErrParameterProblem{} - } - } - - routeKey := stack.UnicastSourceAndMulticastDestination{ - Source: h.SourceAddress(), - Destination: h.DestinationAddress(), - } - - // The pkt has been validated. Consequently, if a route is not found, then - // the pkt can safely be queued. - result, hasBufferSpace := e.protocol.multicastRouteTable.GetRouteOrInsertPending(routeKey, pkt) - - if !hasBufferSpace { - // Unable to queue the pkt. Silently drop it. - return &ip.ErrNoMulticastPendingQueueBufferSpace{} - } - - switch result.GetRouteResultState { - case multicast.InstalledRouteFound: - // Attempt to forward the pkt using an existing route. - return e.forwardValidatedMulticastPacket(pkt, result.InstalledRoute) - case multicast.NoRouteFoundAndPendingInserted: - e.emitMulticastEvent(func(disp stack.MulticastForwardingEventDispatcher) { - disp.OnMissingRoute(stack.MulticastPacketContext{ - stack.UnicastSourceAndMulticastDestination{h.SourceAddress(), h.DestinationAddress()}, - e.nic.ID(), - }) - }) - case multicast.PacketQueuedInPendingRoute: - default: - panic(fmt.Sprintf("unexpected GetRouteResultState: %s", result.GetRouteResultState)) - } - return &ip.ErrHostUnreachable{} -} - -func (e *endpoint) updateOptionsForForwarding(pkt *stack.PacketBuffer) ip.ForwardingError { - h := header.IPv4(pkt.NetworkHeader().Slice()) - if opts := h.Options(); len(opts) != 0 { - newOpts, _, optProblem := e.processIPOptions(pkt, opts, &optionUsageForward{}) - if optProblem != nil { - if optProblem.NeedICMP { - // Note that this will not emit an ICMP error if the destination is - // multicast. - _ = e.protocol.returnError(&icmpReasonParamProblem{ - pointer: optProblem.Pointer, - }, pkt, false /* deliveredLocally */) - } - return &ip.ErrParameterProblem{} - } - copied := copy(opts, newOpts) - if copied != len(newOpts) { - panic(fmt.Sprintf("copied %d bytes of new options, expected %d bytes", copied, len(newOpts))) - } - // Since in forwarding we handle all options, including copying those we - // do not recognise, the options region should remain the same size which - // simplifies processing. As we MAY receive a packet with a lot of padded - // bytes after the "end of options list" byte, make sure we copy - // them as the legal padding value (0). - for i := copied; i < len(opts); i++ { - // Pad with 0 (EOL). RFC 791 page 23 says "The padding is zero". - opts[i] = byte(header.IPv4OptionListEndType) - } - } - return nil -} - -// forwardValidatedMulticastPacket attempts to forward the pkt using the -// provided installedRoute. -// -// This method should be invoked by the endpoint that received the pkt. -func (e *endpoint) forwardValidatedMulticastPacket(pkt *stack.PacketBuffer, installedRoute *multicast.InstalledRoute) ip.ForwardingError { - // Per RFC 1812 section 5.2.1.3, - // - // Based on the IP source and destination addresses found in the datagram - // header, the router determines whether the datagram has been received - // on the proper interface for forwarding. If not, the datagram is - // dropped silently. - if e.nic.ID() != installedRoute.ExpectedInputInterface { - h := header.IPv4(pkt.NetworkHeader().Slice()) - e.emitMulticastEvent(func(disp stack.MulticastForwardingEventDispatcher) { - disp.OnUnexpectedInputInterface(stack.MulticastPacketContext{ - stack.UnicastSourceAndMulticastDestination{h.SourceAddress(), h.DestinationAddress()}, - e.nic.ID(), - }, installedRoute.ExpectedInputInterface) - }) - return &ip.ErrUnexpectedMulticastInputInterface{} - } - - for _, outgoingInterface := range installedRoute.OutgoingInterfaces { - if err := e.forwardMulticastPacketForOutgoingInterface(pkt, outgoingInterface); err != nil { - e.handleForwardingError(err) - continue - } - // The pkt was successfully forwarded. Mark the route as used. - installedRoute.SetLastUsedTimestamp(e.protocol.stack.Clock().NowMonotonic()) - } - return nil -} - -// forwardMulticastPacketForOutgoingInterface attempts to forward the pkt out -// of the provided outgoingInterface. -// -// This method should be invoked by the endpoint that received the pkt. -func (e *endpoint) forwardMulticastPacketForOutgoingInterface(pkt *stack.PacketBuffer, outgoingInterface stack.MulticastRouteOutgoingInterface) ip.ForwardingError { - h := header.IPv4(pkt.NetworkHeader().Slice()) - - // Per RFC 1812 section 5.2.1.3, - // - // A copy of the multicast datagram is forwarded out each outgoing - // interface whose minimum TTL value is less than or equal to the TTL - // value in the datagram header. - // - // Copying of the packet is deferred to forwardPacketWithRoute since unicast - // and multicast both require a copy. - if outgoingInterface.MinTTL > h.TTL() { - return &ip.ErrTTLExceeded{} - } - - route := e.protocol.stack.NewRouteForMulticast(outgoingInterface.ID, h.DestinationAddress(), e.NetworkProtocolNumber()) - - if route == nil { - // Failed to convert to a stack.Route. This likely means that the outgoing - // endpoint no longer exists. - return &ip.ErrHostUnreachable{} - } - defer route.Release() - - return e.forwardPacketWithRoute(route, pkt, true /* updateOptions */) -} - -func (e *endpoint) handleValidatedPacket(h header.IPv4, pkt *stack.PacketBuffer, inNICName string) { - pkt.NICID = e.nic.ID() - - // Raw socket packets are delivered based solely on the transport protocol - // number. We only require that the packet be valid IPv4, and that they not - // be fragmented. - if !h.More() && h.FragmentOffset() == 0 { - e.dispatcher.DeliverRawPacket(h.TransportProtocol(), pkt) - } - - stats := e.stats - stats.ip.ValidPacketsReceived.Increment() - - srcAddr := h.SourceAddress() - dstAddr := h.DestinationAddress() - - // As per RFC 1122 section 3.2.1.3: - // When a host sends any datagram, the IP source address MUST - // be one of its own IP addresses (but not a broadcast or - // multicast address). - if srcAddr == header.IPv4Broadcast || header.IsV4MulticastAddress(srcAddr) { - stats.ip.InvalidSourceAddressesReceived.Increment() - return - } - // Make sure the source address is not a subnet-local broadcast address. - if addressEndpoint := e.AcquireAssignedAddress(srcAddr, false /* createTemp */, stack.NeverPrimaryEndpoint, true /* readOnly */); addressEndpoint != nil { - subnet := addressEndpoint.Subnet() - if subnet.IsBroadcast(srcAddr) { - stats.ip.InvalidSourceAddressesReceived.Increment() - return - } - } - - if header.IsV4MulticastAddress(dstAddr) { - // Handle all packets destined to a multicast address separately. Unlike - // unicast, these packets can be both delivered locally and forwarded. See - // RFC 1812 section 5.2.3 for details regarding the forwarding/local - // delivery decision. - - multicastForwarding := e.MulticastForwarding() && e.protocol.multicastForwarding() - - if multicastForwarding { - e.handleForwardingError(e.forwardMulticastPacket(h, pkt)) - } - - if e.IsInGroup(dstAddr) { - e.deliverPacketLocally(h, pkt, inNICName) - return - } - - if !multicastForwarding { - // Only consider the destination address invalid if we didn't attempt to - // forward the pkt and it was not delivered locally. - stats.ip.InvalidDestinationAddressesReceived.Increment() - } - return - } - - // Before we do any processing, check if the packet was received as some - // sort of broadcast. - // - // If the packet is destined for this device, then it should be delivered - // locally. Otherwise, if forwarding is enabled, it should be forwarded. - if addressEndpoint := e.AcquireAssignedAddress(dstAddr, e.nic.Promiscuous(), stack.CanBePrimaryEndpoint, true /* readOnly */); addressEndpoint != nil { - subnet := addressEndpoint.AddressWithPrefix().Subnet() - pkt.NetworkPacketInfo.LocalAddressBroadcast = subnet.IsBroadcast(dstAddr) || dstAddr == header.IPv4Broadcast - e.deliverPacketLocally(h, pkt, inNICName) - } else if e.Forwarding() { - e.handleForwardingError(e.forwardUnicastPacket(pkt)) - } else { - stats.ip.InvalidDestinationAddressesReceived.Increment() - } -} - -// handleForwardingError processes the provided err and increments any relevant -// counters. -func (e *endpoint) handleForwardingError(err ip.ForwardingError) { - stats := e.stats.ip - switch err := err.(type) { - case nil: - return - case *ip.ErrInitializingSourceAddress: - stats.Forwarding.InitializingSource.Increment() - case *ip.ErrLinkLocalSourceAddress: - stats.Forwarding.LinkLocalSource.Increment() - case *ip.ErrLinkLocalDestinationAddress: - stats.Forwarding.LinkLocalDestination.Increment() - case *ip.ErrTTLExceeded: - stats.Forwarding.ExhaustedTTL.Increment() - case *ip.ErrHostUnreachable: - stats.Forwarding.Unrouteable.Increment() - case *ip.ErrParameterProblem: - stats.MalformedPacketsReceived.Increment() - case *ip.ErrMessageTooLong: - stats.Forwarding.PacketTooBig.Increment() - case *ip.ErrNoMulticastPendingQueueBufferSpace: - stats.Forwarding.NoMulticastPendingQueueBufferSpace.Increment() - case *ip.ErrUnexpectedMulticastInputInterface: - stats.Forwarding.UnexpectedMulticastInputInterface.Increment() - case *ip.ErrUnknownOutputEndpoint: - stats.Forwarding.UnknownOutputEndpoint.Increment() - case *ip.ErrOutgoingDeviceNoBufferSpace: - stats.Forwarding.OutgoingDeviceNoBufferSpace.Increment() - default: - panic(fmt.Sprintf("unrecognized forwarding error: %s", err)) - } - stats.Forwarding.Errors.Increment() -} - -func (e *endpoint) deliverPacketLocally(h header.IPv4, pkt *stack.PacketBuffer, inNICName string) { - stats := e.stats - // iptables filtering. All packets that reach here are intended for - // this machine and will not be forwarded. - if ok := e.protocol.stack.IPTables().CheckInput(pkt, inNICName); !ok { - // iptables is telling us to drop the packet. - stats.ip.IPTablesInputDropped.Increment() - return - } - - if h.More() || h.FragmentOffset() != 0 { - if pkt.Data().Size()+len(pkt.TransportHeader().Slice()) == 0 { - // Drop the packet as it's marked as a fragment but has - // no payload. - stats.ip.MalformedPacketsReceived.Increment() - stats.ip.MalformedFragmentsReceived.Increment() - return - } - if opts := h.Options(); len(opts) != 0 { - // If there are options we need to check them before we do assembly - // or we could be assembling errant packets. However we do not change the - // options as that could lead to double processing later. - if _, _, optProblem := e.processIPOptions(pkt, opts, &optionUsageVerify{}); optProblem != nil { - if optProblem.NeedICMP { - _ = e.protocol.returnError(&icmpReasonParamProblem{ - pointer: optProblem.Pointer, - }, pkt, true /* deliveredLocally */) - e.stats.ip.MalformedPacketsReceived.Increment() - } - return - } - } - // The packet is a fragment, let's try to reassemble it. - start := h.FragmentOffset() - // Drop the fragment if the size of the reassembled payload would exceed the - // maximum payload size. - // - // Note that this addition doesn't overflow even on 32bit architecture - // because pkt.Data().Size() should not exceed 65535 (the max IP datagram - // size). Otherwise the packet would've been rejected as invalid before - // reaching here. - if int(start)+pkt.Data().Size() > header.IPv4MaximumPayloadSize { - stats.ip.MalformedPacketsReceived.Increment() - stats.ip.MalformedFragmentsReceived.Increment() - return - } - - proto := h.Protocol() - resPkt, transProtoNum, ready, err := e.protocol.fragmentation.Process( - // As per RFC 791 section 2.3, the identification value is unique - // for a source-destination pair and protocol. - fragmentation.FragmentID{ - Source: h.SourceAddress(), - Destination: h.DestinationAddress(), - ID: uint32(h.ID()), - Protocol: proto, - }, - start, - start+uint16(pkt.Data().Size())-1, - h.More(), - proto, - pkt, - ) - if err != nil { - stats.ip.MalformedPacketsReceived.Increment() - stats.ip.MalformedFragmentsReceived.Increment() - return - } - if !ready { - return - } - defer resPkt.DecRef() - pkt = resPkt - h = header.IPv4(pkt.NetworkHeader().Slice()) - - // The reassembler doesn't take care of fixing up the header, so we need - // to do it here. - h.SetTotalLength(uint16(pkt.Data().Size() + len(h))) - h.SetFlagsFragmentOffset(0, 0) - - e.protocol.parseTransport(pkt, tcpip.TransportProtocolNumber(transProtoNum)) - - // Now that the packet is reassembled, it can be sent to raw sockets. - e.dispatcher.DeliverRawPacket(h.TransportProtocol(), pkt) - } - stats.ip.PacketsDelivered.Increment() - - p := h.TransportProtocol() - if p == header.ICMPv4ProtocolNumber { - // TODO(gvisor.dev/issues/3810): when we sort out ICMP and transport - // headers, the setting of the transport number here should be - // unnecessary and removed. - pkt.TransportProtocolNumber = p - e.handleICMP(pkt) - return - } - // ICMP handles options itself but do it here for all remaining destinations. - var hasRouterAlertOption bool - if opts := h.Options(); len(opts) != 0 { - newOpts, processedOpts, optProblem := e.processIPOptions(pkt, opts, &optionUsageReceive{}) - if optProblem != nil { - if optProblem.NeedICMP { - _ = e.protocol.returnError(&icmpReasonParamProblem{ - pointer: optProblem.Pointer, - }, pkt, true /* deliveredLocally */) - stats.ip.MalformedPacketsReceived.Increment() - } - return - } - hasRouterAlertOption = processedOpts.routerAlert - copied := copy(opts, newOpts) - if copied != len(newOpts) { - panic(fmt.Sprintf("copied %d bytes of new options, expected %d bytes", copied, len(newOpts))) - } - for i := copied; i < len(opts); i++ { - // Pad with 0 (EOL). RFC 791 page 23 says "The padding is zero". - opts[i] = byte(header.IPv4OptionListEndType) - } - } - if p == header.IGMPProtocolNumber { - e.mu.Lock() - e.igmp.handleIGMP(pkt, hasRouterAlertOption) // +checklocksforce: e == e.igmp.ep. - e.mu.Unlock() - return - } - - switch res := e.dispatcher.DeliverTransportPacket(p, pkt); res { - case stack.TransportPacketHandled: - case stack.TransportPacketDestinationPortUnreachable: - // As per RFC: 1122 Section 3.2.2.1 A host SHOULD generate Destination - // Unreachable messages with code: - // 3 (Port Unreachable), when the designated transport protocol - // (e.g., UDP) is unable to demultiplex the datagram but has no - // protocol mechanism to inform the sender. - _ = e.protocol.returnError(&icmpReasonPortUnreachable{}, pkt, true /* deliveredLocally */) - case stack.TransportPacketProtocolUnreachable: - // As per RFC: 1122 Section 3.2.2.1 - // A host SHOULD generate Destination Unreachable messages with code: - // 2 (Protocol Unreachable), when the designated transport protocol - // is not supported - _ = e.protocol.returnError(&icmpReasonProtoUnreachable{}, pkt, true /* deliveredLocally */) - default: - panic(fmt.Sprintf("unrecognized result from DeliverTransportPacket = %d", res)) - } -} - -// Close cleans up resources associated with the endpoint. -func (e *endpoint) Close() { - e.mu.Lock() - e.disableLocked() - e.addressableEndpointState.Cleanup() - e.mu.Unlock() - - e.protocol.forgetEndpoint(e.nic.ID()) -} - -// AddAndAcquirePermanentAddress implements stack.AddressableEndpoint. -func (e *endpoint) AddAndAcquirePermanentAddress(addr tcpip.AddressWithPrefix, properties stack.AddressProperties) (stack.AddressEndpoint, tcpip.Error) { - e.mu.Lock() - defer e.mu.Unlock() - - ep, err := e.addressableEndpointState.AddAndAcquireAddress(addr, properties, stack.Permanent) - if err == nil { - e.sendQueuedReports() - } - return ep, err -} - -// sendQueuedReports sends queued igmp reports. -// -// +checklocks:e.mu -// +checklocksalias:e.igmp.ep.mu=e.mu -func (e *endpoint) sendQueuedReports() { - e.igmp.sendQueuedReports() -} - -// RemovePermanentAddress implements stack.AddressableEndpoint. -func (e *endpoint) RemovePermanentAddress(addr tcpip.Address) tcpip.Error { - e.mu.RLock() - defer e.mu.RUnlock() - return e.addressableEndpointState.RemovePermanentAddress(addr) -} - -// SetDeprecated implements stack.AddressableEndpoint. -func (e *endpoint) SetDeprecated(addr tcpip.Address, deprecated bool) tcpip.Error { - e.mu.RLock() - defer e.mu.RUnlock() - return e.addressableEndpointState.SetDeprecated(addr, deprecated) -} - -// SetLifetimes implements stack.AddressableEndpoint. -func (e *endpoint) SetLifetimes(addr tcpip.Address, lifetimes stack.AddressLifetimes) tcpip.Error { - e.mu.RLock() - defer e.mu.RUnlock() - return e.addressableEndpointState.SetLifetimes(addr, lifetimes) -} - -// MainAddress implements stack.AddressableEndpoint. -func (e *endpoint) MainAddress() tcpip.AddressWithPrefix { - e.mu.RLock() - defer e.mu.RUnlock() - return e.addressableEndpointState.MainAddress() -} - -// AcquireAssignedAddress implements stack.AddressableEndpoint. -func (e *endpoint) AcquireAssignedAddress(localAddr tcpip.Address, allowTemp bool, tempPEB stack.PrimaryEndpointBehavior, readOnly bool) stack.AddressEndpoint { - e.mu.RLock() - defer e.mu.RUnlock() - - loopback := e.nic.IsLoopback() - return e.addressableEndpointState.AcquireAssignedAddressOrMatching(localAddr, func(addressEndpoint stack.AddressEndpoint) bool { - subnet := addressEndpoint.Subnet() - // IPv4 has a notion of a subnet broadcast address and considers the - // loopback interface bound to an address's whole subnet (on linux). - return subnet.IsBroadcast(localAddr) || (loopback && subnet.Contains(localAddr)) - }, allowTemp, tempPEB, readOnly) -} - -// AcquireOutgoingPrimaryAddress implements stack.AddressableEndpoint. -func (e *endpoint) AcquireOutgoingPrimaryAddress(remoteAddr, srcHint tcpip.Address, allowExpired bool) stack.AddressEndpoint { - e.mu.RLock() - defer e.mu.RUnlock() - return e.acquireOutgoingPrimaryAddressRLocked(remoteAddr, srcHint, allowExpired) -} - -// acquireOutgoingPrimaryAddressRLocked is like AcquireOutgoingPrimaryAddress -// but with locking requirements -// -// +checklocksread:e.mu -func (e *endpoint) acquireOutgoingPrimaryAddressRLocked(remoteAddr, srcHint tcpip.Address, allowExpired bool) stack.AddressEndpoint { - return e.addressableEndpointState.AcquireOutgoingPrimaryAddress(remoteAddr, srcHint, allowExpired) -} - -// PrimaryAddresses implements stack.AddressableEndpoint. -func (e *endpoint) PrimaryAddresses() []tcpip.AddressWithPrefix { - e.mu.RLock() - defer e.mu.RUnlock() - return e.addressableEndpointState.PrimaryAddresses() -} - -// PermanentAddresses implements stack.AddressableEndpoint. -func (e *endpoint) PermanentAddresses() []tcpip.AddressWithPrefix { - e.mu.RLock() - defer e.mu.RUnlock() - return e.addressableEndpointState.PermanentAddresses() -} - -// JoinGroup implements stack.GroupAddressableEndpoint. -func (e *endpoint) JoinGroup(addr tcpip.Address) tcpip.Error { - e.mu.Lock() - defer e.mu.Unlock() - return e.joinGroupLocked(addr) -} - -// joinGroupLocked is like JoinGroup but with locking requirements. -// -// +checklocks:e.mu -// +checklocksalias:e.igmp.ep.mu=e.mu -func (e *endpoint) joinGroupLocked(addr tcpip.Address) tcpip.Error { - if !header.IsV4MulticastAddress(addr) { - return &tcpip.ErrBadAddress{} - } - - e.igmp.joinGroup(addr) - return nil -} - -// LeaveGroup implements stack.GroupAddressableEndpoint. -func (e *endpoint) LeaveGroup(addr tcpip.Address) tcpip.Error { - e.mu.Lock() - defer e.mu.Unlock() - return e.leaveGroupLocked(addr) -} - -// leaveGroupLocked is like LeaveGroup but with locking requirements. -// -// +checklocks:e.mu -// +checklocksalias:e.igmp.ep.mu=e.mu -func (e *endpoint) leaveGroupLocked(addr tcpip.Address) tcpip.Error { - return e.igmp.leaveGroup(addr) -} - -// IsInGroup implements stack.GroupAddressableEndpoint. -func (e *endpoint) IsInGroup(addr tcpip.Address) bool { - e.mu.RLock() - defer e.mu.RUnlock() - return e.igmp.isInGroup(addr) // +checklocksforce: e.mu==e.igmp.ep.mu. -} - -// Stats implements stack.NetworkEndpoint. -func (e *endpoint) Stats() stack.NetworkEndpointStats { - return &e.stats.localStats -} - -var _ stack.NetworkProtocol = (*protocol)(nil) -var _ stack.MulticastForwardingNetworkProtocol = (*protocol)(nil) -var _ stack.RejectIPv4WithHandler = (*protocol)(nil) -var _ fragmentation.TimeoutHandler = (*protocol)(nil) - -// +stateify savable -type protocol struct { - stack *stack.Stack - - // mu protects annotated fields below. - mu sync.RWMutex `state:"nosave"` - - // eps is keyed by NICID to allow protocol methods to retrieve an endpoint - // when handling a packet, by looking at which NIC handled the packet. - // +checklocks:mu - eps map[tcpip.NICID]*endpoint - - // ICMP types for which the stack's global rate limiting must apply. - // +checklocks:mu - icmpRateLimitedTypes map[header.ICMPv4Type]struct{} - - // defaultTTL is the current default TTL for the protocol. Only the - // uint8 portion of it is meaningful. - defaultTTL atomicbitops.Uint32 - - ids []atomicbitops.Uint32 - hashIV uint32 - // idTS is the unix timestamp in milliseconds 'ids' was last accessed. - idTS atomicbitops.Int64 - - fragmentation *fragmentation.Fragmentation - - options Options - - multicastRouteTable multicast.RouteTable - // multicastForwardingDisp is the multicast forwarding event dispatcher that - // an integrator can provide to receive multicast forwarding events. Note - // that multicast packets will only be forwarded if this is non-nil. - // +checklocks:mu - multicastForwardingDisp stack.MulticastForwardingEventDispatcher -} - -// Number returns the ipv4 protocol number. -func (p *protocol) Number() tcpip.NetworkProtocolNumber { - return ProtocolNumber -} - -// MinimumPacketSize returns the minimum valid ipv4 packet size. -func (p *protocol) MinimumPacketSize() int { - return header.IPv4MinimumSize -} - -// ParseAddresses implements stack.NetworkProtocol. -func (*protocol) ParseAddresses(v []byte) (src, dst tcpip.Address) { - h := header.IPv4(v) - return h.SourceAddress(), h.DestinationAddress() -} - -// SetOption implements stack.NetworkProtocol. -func (p *protocol) SetOption(option tcpip.SettableNetworkProtocolOption) tcpip.Error { - switch v := option.(type) { - case *tcpip.DefaultTTLOption: - p.SetDefaultTTL(uint8(*v)) - return nil - default: - return &tcpip.ErrUnknownProtocolOption{} - } -} - -// Option implements stack.NetworkProtocol. -func (p *protocol) Option(option tcpip.GettableNetworkProtocolOption) tcpip.Error { - switch v := option.(type) { - case *tcpip.DefaultTTLOption: - *v = tcpip.DefaultTTLOption(p.DefaultTTL()) - return nil - default: - return &tcpip.ErrUnknownProtocolOption{} - } -} - -// SetDefaultTTL sets the default TTL for endpoints created with this protocol. -func (p *protocol) SetDefaultTTL(ttl uint8) { - p.defaultTTL.Store(uint32(ttl)) -} - -// DefaultTTL returns the default TTL for endpoints created with this protocol. -func (p *protocol) DefaultTTL() uint8 { - return uint8(p.defaultTTL.Load()) -} - -// Close implements stack.TransportProtocol. -func (p *protocol) Close() { - p.fragmentation.Release() - p.multicastRouteTable.Close() -} - -// Wait implements stack.TransportProtocol. -func (*protocol) Wait() {} - -func (p *protocol) validateUnicastSourceAndMulticastDestination(addresses stack.UnicastSourceAndMulticastDestination) tcpip.Error { - if !p.isUnicastAddress(addresses.Source) || header.IsV4LinkLocalUnicastAddress(addresses.Source) { - return &tcpip.ErrBadAddress{} - } - - if !header.IsV4MulticastAddress(addresses.Destination) || header.IsV4LinkLocalMulticastAddress(addresses.Destination) { - return &tcpip.ErrBadAddress{} - } - - return nil -} - -func (p *protocol) multicastForwarding() bool { - p.mu.RLock() - defer p.mu.RUnlock() - return p.multicastForwardingDisp != nil -} - -func (p *protocol) newInstalledRoute(route stack.MulticastRoute) (*multicast.InstalledRoute, tcpip.Error) { - if len(route.OutgoingInterfaces) == 0 { - return nil, &tcpip.ErrMissingRequiredFields{} - } - - if !p.stack.HasNIC(route.ExpectedInputInterface) { - return nil, &tcpip.ErrUnknownNICID{} - } - - for _, outgoingInterface := range route.OutgoingInterfaces { - if route.ExpectedInputInterface == outgoingInterface.ID { - return nil, &tcpip.ErrMulticastInputCannotBeOutput{} - } - - if !p.stack.HasNIC(outgoingInterface.ID) { - return nil, &tcpip.ErrUnknownNICID{} - } - } - return p.multicastRouteTable.NewInstalledRoute(route), nil -} - -// AddMulticastRoute implements stack.MulticastForwardingNetworkProtocol. -func (p *protocol) AddMulticastRoute(addresses stack.UnicastSourceAndMulticastDestination, route stack.MulticastRoute) tcpip.Error { - if !p.multicastForwarding() { - return &tcpip.ErrNotPermitted{} - } - - if err := p.validateUnicastSourceAndMulticastDestination(addresses); err != nil { - return err - } - - installedRoute, err := p.newInstalledRoute(route) - if err != nil { - return err - } - - pendingPackets := p.multicastRouteTable.AddInstalledRoute(addresses, installedRoute) - - for _, pkt := range pendingPackets { - p.forwardPendingMulticastPacket(pkt, installedRoute) - } - return nil -} - -// RemoveMulticastRoute implements -// stack.MulticastForwardingNetworkProtocol.RemoveMulticastRoute. -func (p *protocol) RemoveMulticastRoute(addresses stack.UnicastSourceAndMulticastDestination) tcpip.Error { - if err := p.validateUnicastSourceAndMulticastDestination(addresses); err != nil { - return err - } - - if removed := p.multicastRouteTable.RemoveInstalledRoute(addresses); !removed { - return &tcpip.ErrHostUnreachable{} - } - - return nil -} - -// EnableMulticastForwarding implements -// stack.MulticastForwardingNetworkProtocol.EnableMulticastForwarding. -func (p *protocol) EnableMulticastForwarding(disp stack.MulticastForwardingEventDispatcher) (bool, tcpip.Error) { - p.mu.Lock() - defer p.mu.Unlock() - - if p.multicastForwardingDisp != nil { - return true, nil - } - - if disp == nil { - return false, &tcpip.ErrInvalidOptionValue{} - } - - p.multicastForwardingDisp = disp - return false, nil -} - -// DisableMulticastForwarding implements -// stack.MulticastForwardingNetworkProtocol.DisableMulticastForwarding. -func (p *protocol) DisableMulticastForwarding() { - p.mu.Lock() - defer p.mu.Unlock() - - p.multicastForwardingDisp = nil - p.multicastRouteTable.RemoveAllInstalledRoutes() -} - -// MulticastRouteLastUsedTime implements -// stack.MulticastForwardingNetworkProtocol. -func (p *protocol) MulticastRouteLastUsedTime(addresses stack.UnicastSourceAndMulticastDestination) (tcpip.MonotonicTime, tcpip.Error) { - if err := p.validateUnicastSourceAndMulticastDestination(addresses); err != nil { - return tcpip.MonotonicTime{}, err - } - - timestamp, found := p.multicastRouteTable.GetLastUsedTimestamp(addresses) - - if !found { - return tcpip.MonotonicTime{}, &tcpip.ErrHostUnreachable{} - } - - return timestamp, nil -} - -func (p *protocol) forwardPendingMulticastPacket(pkt *stack.PacketBuffer, installedRoute *multicast.InstalledRoute) { - defer pkt.DecRef() - - // Attempt to forward the packet using the endpoint that it originally - // arrived on. This ensures that the packet is only forwarded if it - // matches the route's expected input interface (see 5a of RFC 1812 section - // 5.2.1.3). - ep, ok := p.getEndpointForNIC(pkt.NICID) - - if !ok { - // The endpoint that the packet arrived on no longer exists. Silently - // drop the pkt. - return - } - - if !ep.MulticastForwarding() { - return - } - - ep.handleForwardingError(ep.forwardValidatedMulticastPacket(pkt, installedRoute)) -} - -func (p *protocol) isUnicastAddress(addr tcpip.Address) bool { - if addr.BitLen() != header.IPv4AddressSizeBits { - return false - } - - if addr == header.IPv4Any || addr == header.IPv4Broadcast { - return false - } - - if p.isSubnetLocalBroadcastAddress(addr) { - return false - } - return !header.IsV4MulticastAddress(addr) -} - -func (p *protocol) isSubnetLocalBroadcastAddress(addr tcpip.Address) bool { - p.mu.RLock() - defer p.mu.RUnlock() - - for _, e := range p.eps { - if addressEndpoint := e.AcquireAssignedAddress(addr, false /* createTemp */, stack.NeverPrimaryEndpoint, true /* readOnly */); addressEndpoint != nil { - subnet := addressEndpoint.Subnet() - if subnet.IsBroadcast(addr) { - return true - } - } - } - return false -} - -// parseAndValidate parses the packet (including its transport layer header) and -// returns the parsed IP header. -// -// Returns true if the IP header was successfully parsed. -func (p *protocol) parseAndValidate(pkt *stack.PacketBuffer) (*buffer.View, bool) { - transProtoNum, hasTransportHdr, ok := p.Parse(pkt) - if !ok { - return nil, false - } - - h := header.IPv4(pkt.NetworkHeader().Slice()) - // Do not include the link header's size when calculating the size of the IP - // packet. - if !h.IsValid(pkt.Size() - len(pkt.LinkHeader().Slice())) { - return nil, false - } - - if !pkt.RXChecksumValidated && !h.IsChecksumValid() { - return nil, false - } - - if hasTransportHdr { - p.parseTransport(pkt, transProtoNum) - } - - return pkt.NetworkHeader().View(), true -} - -func (p *protocol) parseTransport(pkt *stack.PacketBuffer, transProtoNum tcpip.TransportProtocolNumber) { - if transProtoNum == header.ICMPv4ProtocolNumber { - // The transport layer will handle transport layer parsing errors. - _ = parse.ICMPv4(pkt) - return - } - - switch err := p.stack.ParsePacketBufferTransport(transProtoNum, pkt); err { - case stack.ParsedOK: - case stack.UnknownTransportProtocol, stack.TransportLayerParseError: - // The transport layer will handle unknown protocols and transport layer - // parsing errors. - default: - panic(fmt.Sprintf("unexpected error parsing transport header = %d", err)) - } -} - -// Parse implements stack.NetworkProtocol. -func (*protocol) Parse(pkt *stack.PacketBuffer) (proto tcpip.TransportProtocolNumber, hasTransportHdr bool, ok bool) { - if ok := parse.IPv4(pkt); !ok { - return 0, false, false - } - - ipHdr := header.IPv4(pkt.NetworkHeader().Slice()) - return ipHdr.TransportProtocol(), !ipHdr.More() && ipHdr.FragmentOffset() == 0, true -} - -// allowICMPReply reports whether an ICMP reply with provided type and code may -// be sent following the rate mask options and global ICMP rate limiter. -func (p *protocol) allowICMPReply(icmpType header.ICMPv4Type, code header.ICMPv4Code) bool { - // Mimic linux and never rate limit for PMTU discovery. - // https://github.com/torvalds/linux/blob/9e9fb7655ed585da8f468e29221f0ba194a5f613/net/ipv4/icmp.c#L288 - if icmpType == header.ICMPv4DstUnreachable && code == header.ICMPv4FragmentationNeeded { - return true - } - p.mu.RLock() - defer p.mu.RUnlock() - - if _, ok := p.icmpRateLimitedTypes[icmpType]; ok { - return p.stack.AllowICMPMessage() - } - return true -} - -// SendRejectionError implements stack.RejectIPv4WithHandler. -func (p *protocol) SendRejectionError(pkt *stack.PacketBuffer, rejectWith stack.RejectIPv4WithICMPType, inputHook bool) tcpip.Error { - switch rejectWith { - case stack.RejectIPv4WithICMPNetUnreachable: - return p.returnError(&icmpReasonNetworkUnreachable{}, pkt, inputHook) - case stack.RejectIPv4WithICMPHostUnreachable: - return p.returnError(&icmpReasonHostUnreachable{}, pkt, inputHook) - case stack.RejectIPv4WithICMPPortUnreachable: - return p.returnError(&icmpReasonPortUnreachable{}, pkt, inputHook) - case stack.RejectIPv4WithICMPNetProhibited: - return p.returnError(&icmpReasonNetworkProhibited{}, pkt, inputHook) - case stack.RejectIPv4WithICMPHostProhibited: - return p.returnError(&icmpReasonHostProhibited{}, pkt, inputHook) - case stack.RejectIPv4WithICMPAdminProhibited: - return p.returnError(&icmpReasonAdministrativelyProhibited{}, pkt, inputHook) - default: - panic(fmt.Sprintf("unhandled %[1]T = %[1]d", rejectWith)) - } -} - -// calculateNetworkMTU calculates the network-layer payload MTU based on the -// link-layer payload mtu. -func calculateNetworkMTU(linkMTU, networkHeaderSize uint32) (uint32, tcpip.Error) { - if linkMTU < header.IPv4MinimumMTU { - return 0, &tcpip.ErrInvalidEndpointState{} - } - - // As per RFC 791 section 3.1, an IPv4 header cannot exceed 60 bytes in - // length: - // The maximal internet header is 60 octets, and a typical internet header - // is 20 octets, allowing a margin for headers of higher level protocols. - if networkHeaderSize > header.IPv4MaximumHeaderSize { - return 0, &tcpip.ErrMalformedHeader{} - } - - networkMTU := linkMTU - if networkMTU > MaxTotalSize { - networkMTU = MaxTotalSize - } - - return networkMTU - networkHeaderSize, nil -} - -func packetMustBeFragmented(pkt *stack.PacketBuffer, networkMTU uint32) bool { - payload := len(pkt.TransportHeader().Slice()) + pkt.Data().Size() - return pkt.GSOOptions.Type == stack.GSONone && uint32(payload) > networkMTU -} - -// addressToUint32 translates an IPv4 address into its little endian uint32 -// representation. -// -// This function does the same thing as binary.LittleEndian.Uint32 but operates -// on a tcpip.Address (a string) without the need to convert it to a byte slice, -// which would cause an allocation. -func addressToUint32(addr tcpip.Address) uint32 { - addrBytes := addr.As4() - _ = addrBytes[3] // bounds check hint to compiler - return uint32(addrBytes[0]) | uint32(addrBytes[1])<<8 | uint32(addrBytes[2])<<16 | uint32(addrBytes[3])<<24 -} - -// hashRoute calculates a hash value for the given source/destination pair using -// the addresses, transport protocol number and a 32-bit number to generate the -// hash. -func hashRoute(srcAddr, dstAddr tcpip.Address, protocol tcpip.TransportProtocolNumber, hashIV uint32) uint32 { - a := addressToUint32(srcAddr) - b := addressToUint32(dstAddr) - return hash.Hash3Words(a, b, uint32(protocol), hashIV) -} - -// Options holds options to configure a new protocol. -// -// +stateify savable -type Options struct { - // IGMP holds options for IGMP. - IGMP IGMPOptions - - // AllowExternalLoopbackTraffic indicates that inbound loopback packets (i.e. - // martian loopback packets) should be accepted. - AllowExternalLoopbackTraffic bool -} - -// NewProtocolWithOptions returns an IPv4 network protocol. -func NewProtocolWithOptions(opts Options) stack.NetworkProtocolFactory { - ids := make([]atomicbitops.Uint32, buckets) - - // Randomly initialize hashIV and the ids. - r := hash.RandN32(1 + buckets) - for i := range ids { - ids[i] = atomicbitops.FromUint32(r[i]) - } - hashIV := r[buckets] - - return func(s *stack.Stack) stack.NetworkProtocol { - p := &protocol{ - stack: s, - ids: ids, - hashIV: hashIV, - defaultTTL: atomicbitops.FromUint32(DefaultTTL), - options: opts, - } - p.fragmentation = fragmentation.NewFragmentation(fragmentblockSize, fragmentation.HighFragThreshold, fragmentation.LowFragThreshold, ReassembleTimeout, s.Clock(), p) - p.eps = make(map[tcpip.NICID]*endpoint) - // Set ICMP rate limiting to Linux defaults. - // See https://man7.org/linux/man-pages/man7/icmp.7.html. - p.icmpRateLimitedTypes = map[header.ICMPv4Type]struct{}{ - header.ICMPv4DstUnreachable: {}, - header.ICMPv4SrcQuench: {}, - header.ICMPv4TimeExceeded: {}, - header.ICMPv4ParamProblem: {}, - } - if err := p.multicastRouteTable.Init(multicast.DefaultConfig(s.Clock())); err != nil { - panic(fmt.Sprintf("p.multicastRouteTable.Init(_): %s", err)) - } - return p - } -} - -// NewProtocol is equivalent to NewProtocolWithOptions with an empty Options. -func NewProtocol(s *stack.Stack) stack.NetworkProtocol { - return NewProtocolWithOptions(Options{})(s) -} - -func buildNextFragment(pf *fragmentation.PacketFragmenter, originalIPHeader header.IPv4) (*stack.PacketBuffer, bool) { - fragPkt, offset, copied, more := pf.BuildNextFragment() - fragPkt.NetworkProtocolNumber = ProtocolNumber - - originalIPHeaderLength := len(originalIPHeader) - nextFragIPHeader := header.IPv4(fragPkt.NetworkHeader().Push(originalIPHeaderLength)) - fragPkt.NetworkProtocolNumber = ProtocolNumber - - if copied := copy(nextFragIPHeader, originalIPHeader); copied != len(originalIPHeader) { - panic(fmt.Sprintf("wrong number of bytes copied into fragmentIPHeaders: got = %d, want = %d", copied, originalIPHeaderLength)) - } - - flags := originalIPHeader.Flags() - if more { - flags |= header.IPv4FlagMoreFragments - } - nextFragIPHeader.SetFlagsFragmentOffset(flags, uint16(offset)) - nextFragIPHeader.SetTotalLength(uint16(nextFragIPHeader.HeaderLength()) + uint16(copied)) - nextFragIPHeader.SetChecksum(0) - nextFragIPHeader.SetChecksum(^nextFragIPHeader.CalculateChecksum()) - - return fragPkt, more -} - -// optionAction describes possible actions that may be taken on an option -// while processing it. -type optionAction uint8 - -const ( - // optionRemove says that the option should not be in the output option set. - optionRemove optionAction = iota - - // optionProcess says that the option should be fully processed. - optionProcess - - // optionVerify says the option should be checked and passed unchanged. - optionVerify - - // optionPass says to pass the output set without checking. - optionPass -) - -// optionActions list what to do for each option in a given scenario. -type optionActions struct { - // timestamp controls what to do with a Timestamp option. - timestamp optionAction - - // recordRoute controls what to do with a Record Route option. - recordRoute optionAction - - // routerAlert controls what to do with a Router Alert option. - routerAlert optionAction - - // unknown controls what to do with an unknown option. - unknown optionAction -} - -// optionsUsage specifies the ways options may be operated upon for a given -// scenario during packet processing. -type optionsUsage interface { - actions() optionActions -} - -// optionUsageVerify implements optionsUsage for when we just want to check -// fragments. Don't change anything, just check and reject if bad. No -// replacement options are generated. -type optionUsageVerify struct{} - -// actions implements optionsUsage. -func (*optionUsageVerify) actions() optionActions { - return optionActions{ - timestamp: optionVerify, - recordRoute: optionVerify, - routerAlert: optionVerify, - unknown: optionRemove, - } -} - -// optionUsageReceive implements optionsUsage for packets we will pass -// to the transport layer (with the exception of Echo requests). -type optionUsageReceive struct{} - -// actions implements optionsUsage. -func (*optionUsageReceive) actions() optionActions { - return optionActions{ - timestamp: optionProcess, - recordRoute: optionProcess, - routerAlert: optionVerify, - unknown: optionPass, - } -} - -// optionUsageForward implements optionsUsage for packets about to be forwarded. -// All options are passed on regardless of whether we recognise them, however -// we do process the Timestamp and Record Route options. -type optionUsageForward struct{} - -// actions implements optionsUsage. -func (*optionUsageForward) actions() optionActions { - return optionActions{ - timestamp: optionProcess, - recordRoute: optionProcess, - routerAlert: optionVerify, - unknown: optionPass, - } -} - -// optionUsageEcho implements optionsUsage for echo packet processing. -// Only Timestamp and RecordRoute are processed and sent back. -type optionUsageEcho struct{} - -// actions implements optionsUsage. -func (*optionUsageEcho) actions() optionActions { - return optionActions{ - timestamp: optionProcess, - recordRoute: optionProcess, - routerAlert: optionVerify, - unknown: optionRemove, - } -} - -// handleTimestamp does any required processing on a Timestamp option -// in place. -func handleTimestamp(tsOpt header.IPv4OptionTimestamp, localAddress tcpip.Address, clock tcpip.Clock, usage optionsUsage) *header.IPv4OptParameterProblem { - flags := tsOpt.Flags() - var entrySize uint8 - switch flags { - case header.IPv4OptionTimestampOnlyFlag: - entrySize = header.IPv4OptionTimestampSize - case - header.IPv4OptionTimestampWithIPFlag, - header.IPv4OptionTimestampWithPredefinedIPFlag: - entrySize = header.IPv4OptionTimestampWithAddrSize - default: - return &header.IPv4OptParameterProblem{ - Pointer: header.IPv4OptTSOFLWAndFLGOffset, - NeedICMP: true, - } - } - - pointer := tsOpt.Pointer() - // RFC 791 page 22 states: "The smallest legal value is 5." - // Since the pointer is 1 based, and the header is 4 bytes long the - // pointer must point beyond the header therefore 4 or less is bad. - if pointer <= header.IPv4OptionTimestampHdrLength { - return &header.IPv4OptParameterProblem{ - Pointer: header.IPv4OptTSPointerOffset, - NeedICMP: true, - } - } - // To simplify processing below, base further work on the array of timestamps - // beyond the header, rather than on the whole option. Also to aid - // calculations set 'nextSlot' to be 0 based as in the packet it is 1 based. - nextSlot := pointer - (header.IPv4OptionTimestampHdrLength + 1) - optLen := tsOpt.Size() - dataLength := optLen - header.IPv4OptionTimestampHdrLength - - // In the section below, we verify the pointer, length and overflow counter - // fields of the option. The distinction is in which byte you return as being - // in error in the ICMP packet. Offsets 1 (length), 2 pointer) - // or 3 (overflowed counter). - // - // The following RFC sections cover this section: - // - // RFC 791 (page 22): - // If there is some room but not enough room for a full timestamp - // to be inserted, or the overflow count itself overflows, the - // original datagram is considered to be in error and is discarded. - // In either case an ICMP parameter problem message may be sent to - // the source host [3]. - // - // You can get this situation in two ways. Firstly if the data area is not - // a multiple of the entry size or secondly, if the pointer is not at a - // multiple of the entry size. The wording of the RFC suggests that - // this is not an error until you actually run out of space. - if pointer > optLen { - // RFC 791 (page 22) says we should switch to using the overflow count. - // If the timestamp data area is already full (the pointer exceeds - // the length) the datagram is forwarded without inserting the - // timestamp, but the overflow count is incremented by one. - if flags == header.IPv4OptionTimestampWithPredefinedIPFlag { - // By definition we have nothing to do. - return nil - } - - if tsOpt.IncOverflow() != 0 { - return nil - } - // The overflow count is also full. - return &header.IPv4OptParameterProblem{ - Pointer: header.IPv4OptTSOFLWAndFLGOffset, - NeedICMP: true, - } - } - if nextSlot+entrySize > dataLength { - // The data area isn't full but there isn't room for a new entry. - // Either Length or Pointer could be bad. - if false { - // We must select Pointer for Linux compatibility, even if - // only the length is bad. - // The Linux code is at (in October 2020) - // https://github.com/torvalds/linux/blob/bbf5c979011a099af5dc76498918ed7df445635b/net/ipv4/ip_options.c#L367-L370 - // if (optptr[2]+3 > optlen) { - // pp_ptr = optptr + 2; - // goto error; - // } - // which doesn't distinguish between which of optptr[2] or optlen - // is wrong, but just arbitrarily decides on optptr+2. - if dataLength%entrySize != 0 { - // The Data section size should be a multiple of the expected - // timestamp entry size. - return &header.IPv4OptParameterProblem{ - Pointer: header.IPv4OptionLengthOffset, - NeedICMP: false, - } - } - // If the size is OK, the pointer must be corrupted. - } - return &header.IPv4OptParameterProblem{ - Pointer: header.IPv4OptTSPointerOffset, - NeedICMP: true, - } - } - - if usage.actions().timestamp == optionProcess { - tsOpt.UpdateTimestamp(localAddress, clock) - } - return nil -} - -// handleRecordRoute checks and processes a Record route option. It is much -// like the timestamp type 1 option, but without timestamps. The passed in -// address is stored in the option in the correct spot if possible. -func handleRecordRoute(rrOpt header.IPv4OptionRecordRoute, localAddress tcpip.Address, usage optionsUsage) *header.IPv4OptParameterProblem { - optlen := rrOpt.Size() - - if optlen < header.IPv4AddressSize+header.IPv4OptionRecordRouteHdrLength { - return &header.IPv4OptParameterProblem{ - Pointer: header.IPv4OptionLengthOffset, - NeedICMP: true, - } - } - - pointer := rrOpt.Pointer() - // RFC 791 page 20 states: - // The pointer is relative to this option, and the - // smallest legal value for the pointer is 4. - // Since the pointer is 1 based, and the header is 3 bytes long the - // pointer must point beyond the header therefore 3 or less is bad. - if pointer <= header.IPv4OptionRecordRouteHdrLength { - return &header.IPv4OptParameterProblem{ - Pointer: header.IPv4OptRRPointerOffset, - NeedICMP: true, - } - } - - // RFC 791 page 21 says - // If the route data area is already full (the pointer exceeds the - // length) the datagram is forwarded without inserting the address - // into the recorded route. If there is some room but not enough - // room for a full address to be inserted, the original datagram is - // considered to be in error and is discarded. In either case an - // ICMP parameter problem message may be sent to the source - // host. - // The use of the words "In either case" suggests that a 'full' RR option - // could generate an ICMP at every hop after it fills up. We chose to not - // do this (as do most implementations). It is probable that the inclusion - // of these words is a copy/paste error from the timestamp option where - // there are two failure reasons given. - if pointer > optlen { - return nil - } - - // The data area isn't full but there isn't room for a new entry. - // Either Length or Pointer could be bad. We must select Pointer for Linux - // compatibility, even if only the length is bad. NB. pointer is 1 based. - if pointer+header.IPv4AddressSize > optlen+1 { - if false { - // This is what we would do if we were not being Linux compatible. - // Check for bad pointer or length value. Must be a multiple of 4 after - // accounting for the 3 byte header and not within that header. - // RFC 791, page 20 says: - // The pointer is relative to this option, and the - // smallest legal value for the pointer is 4. - // - // A recorded route is composed of a series of internet addresses. - // Each internet address is 32 bits or 4 octets. - // Linux skips this test so we must too. See Linux code at: - // https://github.com/torvalds/linux/blob/bbf5c979011a099af5dc76498918ed7df445635b/net/ipv4/ip_options.c#L338-L341 - // if (optptr[2]+3 > optlen) { - // pp_ptr = optptr + 2; - // goto error; - // } - if (optlen-header.IPv4OptionRecordRouteHdrLength)%header.IPv4AddressSize != 0 { - // Length is bad, not on integral number of slots. - return &header.IPv4OptParameterProblem{ - Pointer: header.IPv4OptionLengthOffset, - NeedICMP: true, - } - } - // If not length, the fault must be with the pointer. - } - return &header.IPv4OptParameterProblem{ - Pointer: header.IPv4OptRRPointerOffset, - NeedICMP: true, - } - } - if usage.actions().recordRoute == optionVerify { - return nil - } - rrOpt.StoreAddress(localAddress) - return nil -} - -// handleRouterAlert performs sanity checks on a Router Alert option. -func handleRouterAlert(raOpt header.IPv4OptionRouterAlert) *header.IPv4OptParameterProblem { - // Only the zero value is acceptable, as per RFC 2113, section 2.1: - // Value: A two octet code with the following values: - // 0 - Router shall examine packet - // 1-65535 - Reserved - if raOpt.Value() != header.IPv4OptionRouterAlertValue { - return &header.IPv4OptParameterProblem{ - Pointer: header.IPv4OptionRouterAlertValueOffset, - NeedICMP: true, - } - } - return nil -} - -type optionTracker struct { - timestamp bool - recordRoute bool - routerAlert bool -} - -// processIPOptions parses the IPv4 options and produces a new set of options -// suitable for use in the next step of packet processing as informed by usage. -// The original will not be touched. -// -// If there were no errors during parsing, the new set of options is returned as -// a new buffer. -func (e *endpoint) processIPOptions(pkt *stack.PacketBuffer, opts header.IPv4Options, usage optionsUsage) (header.IPv4Options, optionTracker, *header.IPv4OptParameterProblem) { - stats := e.stats.ip - optIter := opts.MakeIterator() - - // Except NOP, each option must only appear at most once (RFC 791 section 3.1, - // at the definition of every type). - // Keep track of each option we find to enable duplicate option detection. - var seenOptions [math.MaxUint8 + 1]bool - - // TODO(https://gvisor.dev/issue/4586): This will need tweaking when we start - // really forwarding packets as we may need to get two addresses, for rx and - // tx interfaces. We will also have to take usage into account. - localAddress := e.MainAddress().Address - if localAddress.BitLen() == 0 { - h := header.IPv4(pkt.NetworkHeader().Slice()) - dstAddr := h.DestinationAddress() - if pkt.NetworkPacketInfo.LocalAddressBroadcast || header.IsV4MulticastAddress(dstAddr) { - return nil, optionTracker{}, &header.IPv4OptParameterProblem{ - NeedICMP: false, - } - } - localAddress = dstAddr - } - - var optionsProcessed optionTracker - for { - option, done, optProblem := optIter.Next() - if done || optProblem != nil { - return optIter.Finalize(), optionsProcessed, optProblem - } - optType := option.Type() - if optType == header.IPv4OptionNOPType { - optIter.PushNOPOrEnd(optType) - continue - } - if optType == header.IPv4OptionListEndType { - optIter.PushNOPOrEnd(optType) - return optIter.Finalize(), optionsProcessed, nil - } - - // check for repeating options (multiple NOPs are OK) - if seenOptions[optType] { - return nil, optionTracker{}, &header.IPv4OptParameterProblem{ - Pointer: optIter.ErrCursor, - NeedICMP: true, - } - } - seenOptions[optType] = true - - optLen, optProblem := func() (int, *header.IPv4OptParameterProblem) { - switch option := option.(type) { - case *header.IPv4OptionTimestamp: - stats.OptionTimestampReceived.Increment() - optionsProcessed.timestamp = true - if usage.actions().timestamp != optionRemove { - clock := e.protocol.stack.Clock() - newBuffer := optIter.InitReplacement(option) - optProblem := handleTimestamp(header.IPv4OptionTimestamp(newBuffer), localAddress, clock, usage) - return len(newBuffer), optProblem - } - - case *header.IPv4OptionRecordRoute: - stats.OptionRecordRouteReceived.Increment() - optionsProcessed.recordRoute = true - if usage.actions().recordRoute != optionRemove { - newBuffer := optIter.InitReplacement(option) - optProblem := handleRecordRoute(header.IPv4OptionRecordRoute(newBuffer), localAddress, usage) - return len(newBuffer), optProblem - } - - case *header.IPv4OptionRouterAlert: - stats.OptionRouterAlertReceived.Increment() - optionsProcessed.routerAlert = true - if usage.actions().routerAlert != optionRemove { - newBuffer := optIter.InitReplacement(option) - optProblem := handleRouterAlert(header.IPv4OptionRouterAlert(newBuffer)) - return len(newBuffer), optProblem - } - - default: - stats.OptionUnknownReceived.Increment() - if usage.actions().unknown == optionPass { - return len(optIter.InitReplacement(option)), nil - } - } - return 0, nil - }() - - if optProblem != nil { - optProblem.Pointer += optIter.ErrCursor - return nil, optionTracker{}, optProblem - } - optIter.ConsumeBuffer(optLen) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/ipv4/ipv4_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/ipv4/ipv4_state_autogen.go deleted file mode 100644 index 88e13bf6d2..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/ipv4/ipv4_state_autogen.go +++ /dev/null @@ -1,785 +0,0 @@ -// automatically generated by stateify. - -package ipv4 - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (i *icmpv4DestinationUnreachableSockError) StateTypeName() string { - return "pkg/tcpip/network/ipv4.icmpv4DestinationUnreachableSockError" -} - -func (i *icmpv4DestinationUnreachableSockError) StateFields() []string { - return []string{} -} - -func (i *icmpv4DestinationUnreachableSockError) beforeSave() {} - -// +checklocksignore -func (i *icmpv4DestinationUnreachableSockError) StateSave(stateSinkObject state.Sink) { - i.beforeSave() -} - -func (i *icmpv4DestinationUnreachableSockError) afterLoad(context.Context) {} - -// +checklocksignore -func (i *icmpv4DestinationUnreachableSockError) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (i *icmpv4DestinationHostUnreachableSockError) StateTypeName() string { - return "pkg/tcpip/network/ipv4.icmpv4DestinationHostUnreachableSockError" -} - -func (i *icmpv4DestinationHostUnreachableSockError) StateFields() []string { - return []string{ - "icmpv4DestinationUnreachableSockError", - } -} - -func (i *icmpv4DestinationHostUnreachableSockError) beforeSave() {} - -// +checklocksignore -func (i *icmpv4DestinationHostUnreachableSockError) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.icmpv4DestinationUnreachableSockError) -} - -func (i *icmpv4DestinationHostUnreachableSockError) afterLoad(context.Context) {} - -// +checklocksignore -func (i *icmpv4DestinationHostUnreachableSockError) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.icmpv4DestinationUnreachableSockError) -} - -func (i *icmpv4DestinationNetUnreachableSockError) StateTypeName() string { - return "pkg/tcpip/network/ipv4.icmpv4DestinationNetUnreachableSockError" -} - -func (i *icmpv4DestinationNetUnreachableSockError) StateFields() []string { - return []string{ - "icmpv4DestinationUnreachableSockError", - } -} - -func (i *icmpv4DestinationNetUnreachableSockError) beforeSave() {} - -// +checklocksignore -func (i *icmpv4DestinationNetUnreachableSockError) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.icmpv4DestinationUnreachableSockError) -} - -func (i *icmpv4DestinationNetUnreachableSockError) afterLoad(context.Context) {} - -// +checklocksignore -func (i *icmpv4DestinationNetUnreachableSockError) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.icmpv4DestinationUnreachableSockError) -} - -func (i *icmpv4DestinationPortUnreachableSockError) StateTypeName() string { - return "pkg/tcpip/network/ipv4.icmpv4DestinationPortUnreachableSockError" -} - -func (i *icmpv4DestinationPortUnreachableSockError) StateFields() []string { - return []string{ - "icmpv4DestinationUnreachableSockError", - } -} - -func (i *icmpv4DestinationPortUnreachableSockError) beforeSave() {} - -// +checklocksignore -func (i *icmpv4DestinationPortUnreachableSockError) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.icmpv4DestinationUnreachableSockError) -} - -func (i *icmpv4DestinationPortUnreachableSockError) afterLoad(context.Context) {} - -// +checklocksignore -func (i *icmpv4DestinationPortUnreachableSockError) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.icmpv4DestinationUnreachableSockError) -} - -func (i *icmpv4DestinationProtoUnreachableSockError) StateTypeName() string { - return "pkg/tcpip/network/ipv4.icmpv4DestinationProtoUnreachableSockError" -} - -func (i *icmpv4DestinationProtoUnreachableSockError) StateFields() []string { - return []string{ - "icmpv4DestinationUnreachableSockError", - } -} - -func (i *icmpv4DestinationProtoUnreachableSockError) beforeSave() {} - -// +checklocksignore -func (i *icmpv4DestinationProtoUnreachableSockError) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.icmpv4DestinationUnreachableSockError) -} - -func (i *icmpv4DestinationProtoUnreachableSockError) afterLoad(context.Context) {} - -// +checklocksignore -func (i *icmpv4DestinationProtoUnreachableSockError) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.icmpv4DestinationUnreachableSockError) -} - -func (i *icmpv4SourceRouteFailedSockError) StateTypeName() string { - return "pkg/tcpip/network/ipv4.icmpv4SourceRouteFailedSockError" -} - -func (i *icmpv4SourceRouteFailedSockError) StateFields() []string { - return []string{ - "icmpv4DestinationUnreachableSockError", - } -} - -func (i *icmpv4SourceRouteFailedSockError) beforeSave() {} - -// +checklocksignore -func (i *icmpv4SourceRouteFailedSockError) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.icmpv4DestinationUnreachableSockError) -} - -func (i *icmpv4SourceRouteFailedSockError) afterLoad(context.Context) {} - -// +checklocksignore -func (i *icmpv4SourceRouteFailedSockError) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.icmpv4DestinationUnreachableSockError) -} - -func (i *icmpv4SourceHostIsolatedSockError) StateTypeName() string { - return "pkg/tcpip/network/ipv4.icmpv4SourceHostIsolatedSockError" -} - -func (i *icmpv4SourceHostIsolatedSockError) StateFields() []string { - return []string{ - "icmpv4DestinationUnreachableSockError", - } -} - -func (i *icmpv4SourceHostIsolatedSockError) beforeSave() {} - -// +checklocksignore -func (i *icmpv4SourceHostIsolatedSockError) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.icmpv4DestinationUnreachableSockError) -} - -func (i *icmpv4SourceHostIsolatedSockError) afterLoad(context.Context) {} - -// +checklocksignore -func (i *icmpv4SourceHostIsolatedSockError) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.icmpv4DestinationUnreachableSockError) -} - -func (i *icmpv4DestinationHostUnknownSockError) StateTypeName() string { - return "pkg/tcpip/network/ipv4.icmpv4DestinationHostUnknownSockError" -} - -func (i *icmpv4DestinationHostUnknownSockError) StateFields() []string { - return []string{ - "icmpv4DestinationUnreachableSockError", - } -} - -func (i *icmpv4DestinationHostUnknownSockError) beforeSave() {} - -// +checklocksignore -func (i *icmpv4DestinationHostUnknownSockError) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.icmpv4DestinationUnreachableSockError) -} - -func (i *icmpv4DestinationHostUnknownSockError) afterLoad(context.Context) {} - -// +checklocksignore -func (i *icmpv4DestinationHostUnknownSockError) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.icmpv4DestinationUnreachableSockError) -} - -func (e *icmpv4FragmentationNeededSockError) StateTypeName() string { - return "pkg/tcpip/network/ipv4.icmpv4FragmentationNeededSockError" -} - -func (e *icmpv4FragmentationNeededSockError) StateFields() []string { - return []string{ - "icmpv4DestinationUnreachableSockError", - "mtu", - } -} - -func (e *icmpv4FragmentationNeededSockError) beforeSave() {} - -// +checklocksignore -func (e *icmpv4FragmentationNeededSockError) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.icmpv4DestinationUnreachableSockError) - stateSinkObject.Save(1, &e.mtu) -} - -func (e *icmpv4FragmentationNeededSockError) afterLoad(context.Context) {} - -// +checklocksignore -func (e *icmpv4FragmentationNeededSockError) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.icmpv4DestinationUnreachableSockError) - stateSourceObject.Load(1, &e.mtu) -} - -func (i *IGMPOptions) StateTypeName() string { - return "pkg/tcpip/network/ipv4.IGMPOptions" -} - -func (i *IGMPOptions) StateFields() []string { - return []string{ - "Enabled", - } -} - -func (i *IGMPOptions) beforeSave() {} - -// +checklocksignore -func (i *IGMPOptions) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.Enabled) -} - -func (i *IGMPOptions) afterLoad(context.Context) {} - -// +checklocksignore -func (i *IGMPOptions) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.Enabled) -} - -func (igmp *igmpState) StateTypeName() string { - return "pkg/tcpip/network/ipv4.igmpState" -} - -func (igmp *igmpState) StateFields() []string { - return []string{ - "ep", - "genericMulticastProtocol", - "mode", - "igmpV1Job", - } -} - -func (igmp *igmpState) beforeSave() {} - -// +checklocksignore -func (igmp *igmpState) StateSave(stateSinkObject state.Sink) { - igmp.beforeSave() - stateSinkObject.Save(0, &igmp.ep) - stateSinkObject.Save(1, &igmp.genericMulticastProtocol) - stateSinkObject.Save(2, &igmp.mode) - stateSinkObject.Save(3, &igmp.igmpV1Job) -} - -func (igmp *igmpState) afterLoad(context.Context) {} - -// +checklocksignore -func (igmp *igmpState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &igmp.ep) - stateSourceObject.Load(1, &igmp.genericMulticastProtocol) - stateSourceObject.Load(2, &igmp.mode) - stateSourceObject.Load(3, &igmp.igmpV1Job) -} - -func (e *endpoint) StateTypeName() string { - return "pkg/tcpip/network/ipv4.endpoint" -} - -func (e *endpoint) StateFields() []string { - return []string{ - "nic", - "dispatcher", - "protocol", - "stats", - "enabled", - "forwarding", - "multicastForwarding", - "addressableEndpointState", - "igmp", - } -} - -func (e *endpoint) beforeSave() {} - -// +checklocksignore -func (e *endpoint) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.nic) - stateSinkObject.Save(1, &e.dispatcher) - stateSinkObject.Save(2, &e.protocol) - stateSinkObject.Save(3, &e.stats) - stateSinkObject.Save(4, &e.enabled) - stateSinkObject.Save(5, &e.forwarding) - stateSinkObject.Save(6, &e.multicastForwarding) - stateSinkObject.Save(7, &e.addressableEndpointState) - stateSinkObject.Save(8, &e.igmp) -} - -func (e *endpoint) afterLoad(context.Context) {} - -// +checklocksignore -func (e *endpoint) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.nic) - stateSourceObject.Load(1, &e.dispatcher) - stateSourceObject.Load(2, &e.protocol) - stateSourceObject.Load(3, &e.stats) - stateSourceObject.Load(4, &e.enabled) - stateSourceObject.Load(5, &e.forwarding) - stateSourceObject.Load(6, &e.multicastForwarding) - stateSourceObject.Load(7, &e.addressableEndpointState) - stateSourceObject.Load(8, &e.igmp) -} - -func (p *protocol) StateTypeName() string { - return "pkg/tcpip/network/ipv4.protocol" -} - -func (p *protocol) StateFields() []string { - return []string{ - "stack", - "eps", - "icmpRateLimitedTypes", - "defaultTTL", - "ids", - "hashIV", - "idTS", - "fragmentation", - "options", - "multicastRouteTable", - "multicastForwardingDisp", - } -} - -func (p *protocol) beforeSave() {} - -// +checklocksignore -func (p *protocol) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - stateSinkObject.Save(0, &p.stack) - stateSinkObject.Save(1, &p.eps) - stateSinkObject.Save(2, &p.icmpRateLimitedTypes) - stateSinkObject.Save(3, &p.defaultTTL) - stateSinkObject.Save(4, &p.ids) - stateSinkObject.Save(5, &p.hashIV) - stateSinkObject.Save(6, &p.idTS) - stateSinkObject.Save(7, &p.fragmentation) - stateSinkObject.Save(8, &p.options) - stateSinkObject.Save(9, &p.multicastRouteTable) - stateSinkObject.Save(10, &p.multicastForwardingDisp) -} - -func (p *protocol) afterLoad(context.Context) {} - -// +checklocksignore -func (p *protocol) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.stack) - stateSourceObject.Load(1, &p.eps) - stateSourceObject.Load(2, &p.icmpRateLimitedTypes) - stateSourceObject.Load(3, &p.defaultTTL) - stateSourceObject.Load(4, &p.ids) - stateSourceObject.Load(5, &p.hashIV) - stateSourceObject.Load(6, &p.idTS) - stateSourceObject.Load(7, &p.fragmentation) - stateSourceObject.Load(8, &p.options) - stateSourceObject.Load(9, &p.multicastRouteTable) - stateSourceObject.Load(10, &p.multicastForwardingDisp) -} - -func (o *Options) StateTypeName() string { - return "pkg/tcpip/network/ipv4.Options" -} - -func (o *Options) StateFields() []string { - return []string{ - "IGMP", - "AllowExternalLoopbackTraffic", - } -} - -func (o *Options) beforeSave() {} - -// +checklocksignore -func (o *Options) StateSave(stateSinkObject state.Sink) { - o.beforeSave() - stateSinkObject.Save(0, &o.IGMP) - stateSinkObject.Save(1, &o.AllowExternalLoopbackTraffic) -} - -func (o *Options) afterLoad(context.Context) {} - -// +checklocksignore -func (o *Options) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &o.IGMP) - stateSourceObject.Load(1, &o.AllowExternalLoopbackTraffic) -} - -func (s *Stats) StateTypeName() string { - return "pkg/tcpip/network/ipv4.Stats" -} - -func (s *Stats) StateFields() []string { - return []string{ - "IP", - "IGMP", - "ICMP", - } -} - -func (s *Stats) beforeSave() {} - -// +checklocksignore -func (s *Stats) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.IP) - stateSinkObject.Save(1, &s.IGMP) - stateSinkObject.Save(2, &s.ICMP) -} - -func (s *Stats) afterLoad(context.Context) {} - -// +checklocksignore -func (s *Stats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.IP) - stateSourceObject.Load(1, &s.IGMP) - stateSourceObject.Load(2, &s.ICMP) -} - -func (s *sharedStats) StateTypeName() string { - return "pkg/tcpip/network/ipv4.sharedStats" -} - -func (s *sharedStats) StateFields() []string { - return []string{ - "localStats", - "ip", - "icmp", - "igmp", - } -} - -func (s *sharedStats) beforeSave() {} - -// +checklocksignore -func (s *sharedStats) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.localStats) - stateSinkObject.Save(1, &s.ip) - stateSinkObject.Save(2, &s.icmp) - stateSinkObject.Save(3, &s.igmp) -} - -func (s *sharedStats) afterLoad(context.Context) {} - -// +checklocksignore -func (s *sharedStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.localStats) - stateSourceObject.Load(1, &s.ip) - stateSourceObject.Load(2, &s.icmp) - stateSourceObject.Load(3, &s.igmp) -} - -func (m *multiCounterICMPv4PacketStats) StateTypeName() string { - return "pkg/tcpip/network/ipv4.multiCounterICMPv4PacketStats" -} - -func (m *multiCounterICMPv4PacketStats) StateFields() []string { - return []string{ - "echoRequest", - "echoReply", - "dstUnreachable", - "srcQuench", - "redirect", - "timeExceeded", - "paramProblem", - "timestamp", - "timestampReply", - "infoRequest", - "infoReply", - } -} - -func (m *multiCounterICMPv4PacketStats) beforeSave() {} - -// +checklocksignore -func (m *multiCounterICMPv4PacketStats) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.echoRequest) - stateSinkObject.Save(1, &m.echoReply) - stateSinkObject.Save(2, &m.dstUnreachable) - stateSinkObject.Save(3, &m.srcQuench) - stateSinkObject.Save(4, &m.redirect) - stateSinkObject.Save(5, &m.timeExceeded) - stateSinkObject.Save(6, &m.paramProblem) - stateSinkObject.Save(7, &m.timestamp) - stateSinkObject.Save(8, &m.timestampReply) - stateSinkObject.Save(9, &m.infoRequest) - stateSinkObject.Save(10, &m.infoReply) -} - -func (m *multiCounterICMPv4PacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (m *multiCounterICMPv4PacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.echoRequest) - stateSourceObject.Load(1, &m.echoReply) - stateSourceObject.Load(2, &m.dstUnreachable) - stateSourceObject.Load(3, &m.srcQuench) - stateSourceObject.Load(4, &m.redirect) - stateSourceObject.Load(5, &m.timeExceeded) - stateSourceObject.Load(6, &m.paramProblem) - stateSourceObject.Load(7, &m.timestamp) - stateSourceObject.Load(8, &m.timestampReply) - stateSourceObject.Load(9, &m.infoRequest) - stateSourceObject.Load(10, &m.infoReply) -} - -func (m *multiCounterICMPv4SentPacketStats) StateTypeName() string { - return "pkg/tcpip/network/ipv4.multiCounterICMPv4SentPacketStats" -} - -func (m *multiCounterICMPv4SentPacketStats) StateFields() []string { - return []string{ - "multiCounterICMPv4PacketStats", - "dropped", - "rateLimited", - } -} - -func (m *multiCounterICMPv4SentPacketStats) beforeSave() {} - -// +checklocksignore -func (m *multiCounterICMPv4SentPacketStats) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.multiCounterICMPv4PacketStats) - stateSinkObject.Save(1, &m.dropped) - stateSinkObject.Save(2, &m.rateLimited) -} - -func (m *multiCounterICMPv4SentPacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (m *multiCounterICMPv4SentPacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.multiCounterICMPv4PacketStats) - stateSourceObject.Load(1, &m.dropped) - stateSourceObject.Load(2, &m.rateLimited) -} - -func (m *multiCounterICMPv4ReceivedPacketStats) StateTypeName() string { - return "pkg/tcpip/network/ipv4.multiCounterICMPv4ReceivedPacketStats" -} - -func (m *multiCounterICMPv4ReceivedPacketStats) StateFields() []string { - return []string{ - "multiCounterICMPv4PacketStats", - "invalid", - } -} - -func (m *multiCounterICMPv4ReceivedPacketStats) beforeSave() {} - -// +checklocksignore -func (m *multiCounterICMPv4ReceivedPacketStats) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.multiCounterICMPv4PacketStats) - stateSinkObject.Save(1, &m.invalid) -} - -func (m *multiCounterICMPv4ReceivedPacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (m *multiCounterICMPv4ReceivedPacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.multiCounterICMPv4PacketStats) - stateSourceObject.Load(1, &m.invalid) -} - -func (m *multiCounterICMPv4Stats) StateTypeName() string { - return "pkg/tcpip/network/ipv4.multiCounterICMPv4Stats" -} - -func (m *multiCounterICMPv4Stats) StateFields() []string { - return []string{ - "packetsSent", - "packetsReceived", - } -} - -func (m *multiCounterICMPv4Stats) beforeSave() {} - -// +checklocksignore -func (m *multiCounterICMPv4Stats) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.packetsSent) - stateSinkObject.Save(1, &m.packetsReceived) -} - -func (m *multiCounterICMPv4Stats) afterLoad(context.Context) {} - -// +checklocksignore -func (m *multiCounterICMPv4Stats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.packetsSent) - stateSourceObject.Load(1, &m.packetsReceived) -} - -func (m *multiCounterIGMPPacketStats) StateTypeName() string { - return "pkg/tcpip/network/ipv4.multiCounterIGMPPacketStats" -} - -func (m *multiCounterIGMPPacketStats) StateFields() []string { - return []string{ - "membershipQuery", - "v1MembershipReport", - "v2MembershipReport", - "v3MembershipReport", - "leaveGroup", - } -} - -func (m *multiCounterIGMPPacketStats) beforeSave() {} - -// +checklocksignore -func (m *multiCounterIGMPPacketStats) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.membershipQuery) - stateSinkObject.Save(1, &m.v1MembershipReport) - stateSinkObject.Save(2, &m.v2MembershipReport) - stateSinkObject.Save(3, &m.v3MembershipReport) - stateSinkObject.Save(4, &m.leaveGroup) -} - -func (m *multiCounterIGMPPacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (m *multiCounterIGMPPacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.membershipQuery) - stateSourceObject.Load(1, &m.v1MembershipReport) - stateSourceObject.Load(2, &m.v2MembershipReport) - stateSourceObject.Load(3, &m.v3MembershipReport) - stateSourceObject.Load(4, &m.leaveGroup) -} - -func (m *multiCounterIGMPSentPacketStats) StateTypeName() string { - return "pkg/tcpip/network/ipv4.multiCounterIGMPSentPacketStats" -} - -func (m *multiCounterIGMPSentPacketStats) StateFields() []string { - return []string{ - "multiCounterIGMPPacketStats", - "dropped", - } -} - -func (m *multiCounterIGMPSentPacketStats) beforeSave() {} - -// +checklocksignore -func (m *multiCounterIGMPSentPacketStats) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.multiCounterIGMPPacketStats) - stateSinkObject.Save(1, &m.dropped) -} - -func (m *multiCounterIGMPSentPacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (m *multiCounterIGMPSentPacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.multiCounterIGMPPacketStats) - stateSourceObject.Load(1, &m.dropped) -} - -func (m *multiCounterIGMPReceivedPacketStats) StateTypeName() string { - return "pkg/tcpip/network/ipv4.multiCounterIGMPReceivedPacketStats" -} - -func (m *multiCounterIGMPReceivedPacketStats) StateFields() []string { - return []string{ - "multiCounterIGMPPacketStats", - "invalid", - "checksumErrors", - "unrecognized", - } -} - -func (m *multiCounterIGMPReceivedPacketStats) beforeSave() {} - -// +checklocksignore -func (m *multiCounterIGMPReceivedPacketStats) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.multiCounterIGMPPacketStats) - stateSinkObject.Save(1, &m.invalid) - stateSinkObject.Save(2, &m.checksumErrors) - stateSinkObject.Save(3, &m.unrecognized) -} - -func (m *multiCounterIGMPReceivedPacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (m *multiCounterIGMPReceivedPacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.multiCounterIGMPPacketStats) - stateSourceObject.Load(1, &m.invalid) - stateSourceObject.Load(2, &m.checksumErrors) - stateSourceObject.Load(3, &m.unrecognized) -} - -func (m *multiCounterIGMPStats) StateTypeName() string { - return "pkg/tcpip/network/ipv4.multiCounterIGMPStats" -} - -func (m *multiCounterIGMPStats) StateFields() []string { - return []string{ - "packetsSent", - "packetsReceived", - } -} - -func (m *multiCounterIGMPStats) beforeSave() {} - -// +checklocksignore -func (m *multiCounterIGMPStats) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.packetsSent) - stateSinkObject.Save(1, &m.packetsReceived) -} - -func (m *multiCounterIGMPStats) afterLoad(context.Context) {} - -// +checklocksignore -func (m *multiCounterIGMPStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.packetsSent) - stateSourceObject.Load(1, &m.packetsReceived) -} - -func init() { - state.Register((*icmpv4DestinationUnreachableSockError)(nil)) - state.Register((*icmpv4DestinationHostUnreachableSockError)(nil)) - state.Register((*icmpv4DestinationNetUnreachableSockError)(nil)) - state.Register((*icmpv4DestinationPortUnreachableSockError)(nil)) - state.Register((*icmpv4DestinationProtoUnreachableSockError)(nil)) - state.Register((*icmpv4SourceRouteFailedSockError)(nil)) - state.Register((*icmpv4SourceHostIsolatedSockError)(nil)) - state.Register((*icmpv4DestinationHostUnknownSockError)(nil)) - state.Register((*icmpv4FragmentationNeededSockError)(nil)) - state.Register((*IGMPOptions)(nil)) - state.Register((*igmpState)(nil)) - state.Register((*endpoint)(nil)) - state.Register((*protocol)(nil)) - state.Register((*Options)(nil)) - state.Register((*Stats)(nil)) - state.Register((*sharedStats)(nil)) - state.Register((*multiCounterICMPv4PacketStats)(nil)) - state.Register((*multiCounterICMPv4SentPacketStats)(nil)) - state.Register((*multiCounterICMPv4ReceivedPacketStats)(nil)) - state.Register((*multiCounterICMPv4Stats)(nil)) - state.Register((*multiCounterIGMPPacketStats)(nil)) - state.Register((*multiCounterIGMPSentPacketStats)(nil)) - state.Register((*multiCounterIGMPReceivedPacketStats)(nil)) - state.Register((*multiCounterIGMPStats)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/ipv4/stats.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/network/ipv4/stats.go deleted file mode 100644 index 5b59ff5c62..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/network/ipv4/stats.go +++ /dev/null @@ -1,203 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package ipv4 - -import ( - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/network/internal/ip" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -var _ stack.IPNetworkEndpointStats = (*Stats)(nil) - -// Stats holds statistics related to the IPv4 protocol family. -// -// +stateify savable -type Stats struct { - // IP holds IPv4 statistics. - IP tcpip.IPStats - - // IGMP holds IGMP statistics. - IGMP tcpip.IGMPStats - - // ICMP holds ICMPv4 statistics. - ICMP tcpip.ICMPv4Stats -} - -// IsNetworkEndpointStats implements stack.NetworkEndpointStats. -func (*Stats) IsNetworkEndpointStats() {} - -// IPStats implements stack.IPNetworkEndointStats -func (s *Stats) IPStats() *tcpip.IPStats { - return &s.IP -} - -// +stateify savable -type sharedStats struct { - localStats Stats - ip ip.MultiCounterIPStats - icmp multiCounterICMPv4Stats - igmp multiCounterIGMPStats -} - -// LINT.IfChange(multiCounterICMPv4PacketStats) - -// +stateify savable -type multiCounterICMPv4PacketStats struct { - echoRequest tcpip.MultiCounterStat - echoReply tcpip.MultiCounterStat - dstUnreachable tcpip.MultiCounterStat - srcQuench tcpip.MultiCounterStat - redirect tcpip.MultiCounterStat - timeExceeded tcpip.MultiCounterStat - paramProblem tcpip.MultiCounterStat - timestamp tcpip.MultiCounterStat - timestampReply tcpip.MultiCounterStat - infoRequest tcpip.MultiCounterStat - infoReply tcpip.MultiCounterStat -} - -func (m *multiCounterICMPv4PacketStats) init(a, b *tcpip.ICMPv4PacketStats) { - m.echoRequest.Init(a.EchoRequest, b.EchoRequest) - m.echoReply.Init(a.EchoReply, b.EchoReply) - m.dstUnreachable.Init(a.DstUnreachable, b.DstUnreachable) - m.srcQuench.Init(a.SrcQuench, b.SrcQuench) - m.redirect.Init(a.Redirect, b.Redirect) - m.timeExceeded.Init(a.TimeExceeded, b.TimeExceeded) - m.paramProblem.Init(a.ParamProblem, b.ParamProblem) - m.timestamp.Init(a.Timestamp, b.Timestamp) - m.timestampReply.Init(a.TimestampReply, b.TimestampReply) - m.infoRequest.Init(a.InfoRequest, b.InfoRequest) - m.infoReply.Init(a.InfoReply, b.InfoReply) -} - -// LINT.ThenChange(../../tcpip.go:ICMPv4PacketStats) - -// LINT.IfChange(multiCounterICMPv4SentPacketStats) - -// +stateify savable -type multiCounterICMPv4SentPacketStats struct { - multiCounterICMPv4PacketStats - dropped tcpip.MultiCounterStat - rateLimited tcpip.MultiCounterStat -} - -func (m *multiCounterICMPv4SentPacketStats) init(a, b *tcpip.ICMPv4SentPacketStats) { - m.multiCounterICMPv4PacketStats.init(&a.ICMPv4PacketStats, &b.ICMPv4PacketStats) - m.dropped.Init(a.Dropped, b.Dropped) - m.rateLimited.Init(a.RateLimited, b.RateLimited) -} - -// LINT.ThenChange(../../tcpip.go:ICMPv4SentPacketStats) - -// LINT.IfChange(multiCounterICMPv4ReceivedPacketStats) - -// +stateify savable -type multiCounterICMPv4ReceivedPacketStats struct { - multiCounterICMPv4PacketStats - invalid tcpip.MultiCounterStat -} - -func (m *multiCounterICMPv4ReceivedPacketStats) init(a, b *tcpip.ICMPv4ReceivedPacketStats) { - m.multiCounterICMPv4PacketStats.init(&a.ICMPv4PacketStats, &b.ICMPv4PacketStats) - m.invalid.Init(a.Invalid, b.Invalid) -} - -// LINT.ThenChange(../../tcpip.go:ICMPv4ReceivedPacketStats) - -// LINT.IfChange(multiCounterICMPv4Stats) - -// +stateify savable -type multiCounterICMPv4Stats struct { - packetsSent multiCounterICMPv4SentPacketStats - packetsReceived multiCounterICMPv4ReceivedPacketStats -} - -func (m *multiCounterICMPv4Stats) init(a, b *tcpip.ICMPv4Stats) { - m.packetsSent.init(&a.PacketsSent, &b.PacketsSent) - m.packetsReceived.init(&a.PacketsReceived, &b.PacketsReceived) -} - -// LINT.ThenChange(../../tcpip.go:ICMPv4Stats) - -// LINT.IfChange(multiCounterIGMPPacketStats) - -// +stateify savable -type multiCounterIGMPPacketStats struct { - membershipQuery tcpip.MultiCounterStat - v1MembershipReport tcpip.MultiCounterStat - v2MembershipReport tcpip.MultiCounterStat - v3MembershipReport tcpip.MultiCounterStat - leaveGroup tcpip.MultiCounterStat -} - -func (m *multiCounterIGMPPacketStats) init(a, b *tcpip.IGMPPacketStats) { - m.membershipQuery.Init(a.MembershipQuery, b.MembershipQuery) - m.v1MembershipReport.Init(a.V1MembershipReport, b.V1MembershipReport) - m.v2MembershipReport.Init(a.V2MembershipReport, b.V2MembershipReport) - m.v3MembershipReport.Init(a.V3MembershipReport, b.V3MembershipReport) - m.leaveGroup.Init(a.LeaveGroup, b.LeaveGroup) -} - -// LINT.ThenChange(../../tcpip.go:IGMPPacketStats) - -// LINT.IfChange(multiCounterIGMPSentPacketStats) - -// +stateify savable -type multiCounterIGMPSentPacketStats struct { - multiCounterIGMPPacketStats - dropped tcpip.MultiCounterStat -} - -func (m *multiCounterIGMPSentPacketStats) init(a, b *tcpip.IGMPSentPacketStats) { - m.multiCounterIGMPPacketStats.init(&a.IGMPPacketStats, &b.IGMPPacketStats) - m.dropped.Init(a.Dropped, b.Dropped) -} - -// LINT.ThenChange(../../tcpip.go:IGMPSentPacketStats) - -// LINT.IfChange(multiCounterIGMPReceivedPacketStats) - -// +stateify savable -type multiCounterIGMPReceivedPacketStats struct { - multiCounterIGMPPacketStats - invalid tcpip.MultiCounterStat - checksumErrors tcpip.MultiCounterStat - unrecognized tcpip.MultiCounterStat -} - -func (m *multiCounterIGMPReceivedPacketStats) init(a, b *tcpip.IGMPReceivedPacketStats) { - m.multiCounterIGMPPacketStats.init(&a.IGMPPacketStats, &b.IGMPPacketStats) - m.invalid.Init(a.Invalid, b.Invalid) - m.checksumErrors.Init(a.ChecksumErrors, b.ChecksumErrors) - m.unrecognized.Init(a.Unrecognized, b.Unrecognized) -} - -// LINT.ThenChange(../../tcpip.go:IGMPReceivedPacketStats) - -// LINT.IfChange(multiCounterIGMPStats) - -// +stateify savable -type multiCounterIGMPStats struct { - packetsSent multiCounterIGMPSentPacketStats - packetsReceived multiCounterIGMPReceivedPacketStats -} - -func (m *multiCounterIGMPStats) init(a, b *tcpip.IGMPStats) { - m.packetsSent.init(&a.PacketsSent, &b.PacketsSent) - m.packetsReceived.init(&a.PacketsReceived, &b.PacketsReceived) -} - -// LINT.ThenChange(../../tcpip.go:IGMPStats) diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/ports/flags.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/ports/flags.go deleted file mode 100644 index 251b82e96a..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/ports/flags.go +++ /dev/null @@ -1,152 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package ports - -// Flags represents the type of port reservation. -// -// +stateify savable -type Flags struct { - // MostRecent represents UDP SO_REUSEADDR. - MostRecent bool - - // LoadBalanced indicates SO_REUSEPORT. - // - // LoadBalanced takes precedence over MostRecent. - LoadBalanced bool - - // TupleOnly represents TCP SO_REUSEADDR. - TupleOnly bool -} - -// Bits converts the Flags to their bitset form. -func (f Flags) Bits() BitFlags { - var rf BitFlags - if f.MostRecent { - rf |= MostRecentFlag - } - if f.LoadBalanced { - rf |= LoadBalancedFlag - } - if f.TupleOnly { - rf |= TupleOnlyFlag - } - return rf -} - -// Effective returns the effective behavior of a flag config. -func (f Flags) Effective() Flags { - e := f - if e.LoadBalanced && e.MostRecent { - e.MostRecent = false - } - return e -} - -// BitFlags is a bitset representation of Flags. -type BitFlags uint32 - -const ( - // MostRecentFlag represents Flags.MostRecent. - MostRecentFlag BitFlags = 1 << iota - - // LoadBalancedFlag represents Flags.LoadBalanced. - LoadBalancedFlag - - // TupleOnlyFlag represents Flags.TupleOnly. - TupleOnlyFlag - - // nextFlag is the value that the next added flag will have. - // - // It is used to calculate FlagMask below. It is also the number of - // valid flag states. - nextFlag - - // FlagMask is a bit mask for BitFlags. - FlagMask = nextFlag - 1 - - // MultiBindFlagMask contains the flags that allow binding the same - // tuple multiple times. - MultiBindFlagMask = MostRecentFlag | LoadBalancedFlag -) - -// ToFlags converts the bitset into a Flags struct. -func (f BitFlags) ToFlags() Flags { - return Flags{ - MostRecent: f&MostRecentFlag != 0, - LoadBalanced: f&LoadBalancedFlag != 0, - TupleOnly: f&TupleOnlyFlag != 0, - } -} - -// FlagCounter counts how many references each flag combination has. -// -// +stateify savable -type FlagCounter struct { - // refs stores the count for each possible flag combination, (0 though - // FlagMask). - refs [nextFlag]int -} - -// AddRef increases the reference count for a specific flag combination. -func (c *FlagCounter) AddRef(flags BitFlags) { - c.refs[flags]++ -} - -// DropRef decreases the reference count for a specific flag combination. -func (c *FlagCounter) DropRef(flags BitFlags) { - c.refs[flags]-- -} - -// TotalRefs calculates the total number of references for all flag -// combinations. -func (c FlagCounter) TotalRefs() int { - var total int - for _, r := range c.refs { - total += r - } - return total -} - -// FlagRefs returns the number of references with all specified flags. -func (c FlagCounter) FlagRefs(flags BitFlags) int { - var total int - for i, r := range c.refs { - if BitFlags(i)&flags == flags { - total += r - } - } - return total -} - -// AllRefsHave returns if all references have all specified flags. -func (c FlagCounter) AllRefsHave(flags BitFlags) bool { - for i, r := range c.refs { - if BitFlags(i)&flags != flags && r > 0 { - return false - } - } - return true -} - -// SharedFlags returns the set of flags shared by all references. -func (c FlagCounter) SharedFlags() BitFlags { - intersection := FlagMask - for i, r := range c.refs { - if r > 0 { - intersection &= BitFlags(i) - } - } - return intersection -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/ports/ports.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/ports/ports.go deleted file mode 100644 index b2feca1231..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/ports/ports.go +++ /dev/null @@ -1,498 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package ports provides PortManager that manages allocating, reserving and -// releasing ports. -package ports - -import ( - "math" - - "gvisor.dev/gvisor/pkg/rand" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" -) - -const ( - firstEphemeral = 16000 -) - -var ( - anyIPAddress = tcpip.Address{} -) - -// Reservation describes a port reservation. -type Reservation struct { - // Networks is a list of network protocols to which the reservation - // applies. Can be IPv4, IPv6, or both. - Networks []tcpip.NetworkProtocolNumber - - // Transport is the transport protocol to which the reservation applies. - Transport tcpip.TransportProtocolNumber - - // Addr is the address of the local endpoint. - Addr tcpip.Address - - // Port is the local port number. - Port uint16 - - // Flags describe features of the reservation. - Flags Flags - - // BindToDevice is the NIC to which the reservation applies. - BindToDevice tcpip.NICID - - // Dest is the destination address. - Dest tcpip.FullAddress -} - -func (rs Reservation) dst() destination { - return destination{ - rs.Dest.Addr, - rs.Dest.Port, - } -} - -// +stateify savable -type portDescriptor struct { - network tcpip.NetworkProtocolNumber - transport tcpip.TransportProtocolNumber - port uint16 -} - -// +stateify savable -type destination struct { - addr tcpip.Address - port uint16 -} - -// destToCounter maps each destination to the FlagCounter that represents -// endpoints to that destination. -// -// destToCounter is never empty. When it has no elements, it is removed from -// the map that references it. -type destToCounter map[destination]FlagCounter - -// intersectionFlags calculates the intersection of flag bit values which affect -// the specified destination. -// -// If no destinations are present, all flag values are returned as there are no -// entries to limit possible flag values of a new entry. -// -// In addition to the intersection, the number of intersecting refs is -// returned. -func (dc destToCounter) intersectionFlags(res Reservation) (BitFlags, int) { - intersection := FlagMask - var count int - - for dest, counter := range dc { - if dest == res.dst() { - intersection &= counter.SharedFlags() - count++ - continue - } - // Wildcard destinations affect all destinations for TupleOnly. - if dest.addr == anyIPAddress || res.Dest.Addr == anyIPAddress { - // Only bitwise and the TupleOnlyFlag. - intersection &= (^TupleOnlyFlag) | counter.SharedFlags() - count++ - } - } - - return intersection, count -} - -// deviceToDest maps NICs to destinations for which there are port reservations. -// -// deviceToDest is never empty. When it has no elements, it is removed from the -// map that references it. -type deviceToDest map[tcpip.NICID]destToCounter - -// isAvailable checks whether binding is possible by device. If not binding to -// a device, check against all FlagCounters. If binding to a specific device, -// check against the unspecified device and the provided device. -// -// If either of the port reuse flags is enabled on any of the nodes, all nodes -// sharing a port must share at least one reuse flag. This matches Linux's -// behavior. -func (dd deviceToDest) isAvailable(res Reservation, portSpecified bool) bool { - flagBits := res.Flags.Bits() - if res.BindToDevice == 0 { - intersection := FlagMask - for _, dest := range dd { - flags, count := dest.intersectionFlags(res) - if count == 0 { - continue - } - intersection &= flags - if intersection&flagBits == 0 { - // Can't bind because the (addr,port) was - // previously bound without reuse. - return false - } - } - if !portSpecified && res.Transport == header.TCPProtocolNumber { - return false - } - return true - } - - intersection := FlagMask - - if dests, ok := dd[0]; ok { - var count int - intersection, count = dests.intersectionFlags(res) - if count > 0 { - if intersection&flagBits == 0 { - return false - } - if !portSpecified && res.Transport == header.TCPProtocolNumber { - return false - } - } - } - - if dests, ok := dd[res.BindToDevice]; ok { - flags, count := dests.intersectionFlags(res) - intersection &= flags - if count > 0 { - if intersection&flagBits == 0 { - return false - } - if !portSpecified && res.Transport == header.TCPProtocolNumber { - return false - } - } - } - - return true -} - -// addrToDevice maps IP addresses to NICs that have port reservations. -type addrToDevice map[tcpip.Address]deviceToDest - -// isAvailable checks whether an IP address is available to bind to. If the -// address is the "any" address, check all other addresses. Otherwise, just -// check against the "any" address and the provided address. -func (ad addrToDevice) isAvailable(res Reservation, portSpecified bool) bool { - if res.Addr == anyIPAddress { - // If binding to the "any" address then check that there are no - // conflicts with all addresses. - for _, devices := range ad { - if !devices.isAvailable(res, portSpecified) { - return false - } - } - return true - } - - // Check that there is no conflict with the "any" address. - if devices, ok := ad[anyIPAddress]; ok { - if !devices.isAvailable(res, portSpecified) { - return false - } - } - - // Check that this is no conflict with the provided address. - if devices, ok := ad[res.Addr]; ok { - if !devices.isAvailable(res, portSpecified) { - return false - } - } - - return true -} - -// PortManager manages allocating, reserving and releasing ports. -// -// +stateify savable -type PortManager struct { - // mu protects allocatedPorts. - // LOCK ORDERING: mu > ephemeralMu. - mu sync.RWMutex `state:"nosave"` - // allocatedPorts is a nesting of maps that ultimately map Reservations - // to FlagCounters describing whether the Reservation is valid and can - // be reused. - allocatedPorts map[portDescriptor]addrToDevice - - // ephemeralMu protects firstEphemeral and numEphemeral. - ephemeralMu sync.RWMutex `state:"nosave"` - firstEphemeral uint16 - numEphemeral uint16 -} - -// NewPortManager creates new PortManager. -func NewPortManager() *PortManager { - return &PortManager{ - allocatedPorts: make(map[portDescriptor]addrToDevice), - firstEphemeral: firstEphemeral, - numEphemeral: math.MaxUint16 - firstEphemeral + 1, - } -} - -// PortTester indicates whether the passed in port is suitable. Returning an -// error causes the function to which the PortTester is passed to return that -// error. -type PortTester func(port uint16) (good bool, err tcpip.Error) - -// PickEphemeralPort randomly chooses a starting point and iterates over all -// possible ephemeral ports, allowing the caller to decide whether a given port -// is suitable for its needs, and stopping when a port is found or an error -// occurs. -func (pm *PortManager) PickEphemeralPort(rng rand.RNG, testPort PortTester) (port uint16, err tcpip.Error) { - pm.ephemeralMu.RLock() - firstEphemeral := pm.firstEphemeral - numEphemeral := pm.numEphemeral - pm.ephemeralMu.RUnlock() - - return pickEphemeralPort(rng.Uint32(), firstEphemeral, numEphemeral, testPort) -} - -// pickEphemeralPort starts at the offset specified from the FirstEphemeral port -// and iterates over the number of ports specified by count and allows the -// caller to decide whether a given port is suitable for its needs, and stopping -// when a port is found or an error occurs. -func pickEphemeralPort(offset uint32, first, count uint16, testPort PortTester) (port uint16, err tcpip.Error) { - // This implements Algorithm 1 as per RFC 6056 Section 3.3.1. - for i := uint32(0); i < uint32(count); i++ { - port := uint16(uint32(first) + (offset+i)%uint32(count)) - ok, err := testPort(port) - if err != nil { - return 0, err - } - - if ok { - return port, nil - } - } - - return 0, &tcpip.ErrNoPortAvailable{} -} - -// ReservePort marks a port/IP combination as reserved so that it cannot be -// reserved by another endpoint. If port is zero, ReservePort will search for -// an unreserved ephemeral port and reserve it, returning its value in the -// "port" return value. -// -// An optional PortTester can be passed in which if provided will be used to -// test if the picked port can be used. The function should return true if the -// port is safe to use, false otherwise. -func (pm *PortManager) ReservePort(rng rand.RNG, res Reservation, testPort PortTester) (reservedPort uint16, err tcpip.Error) { - pm.mu.Lock() - defer pm.mu.Unlock() - - // If a port is specified, just try to reserve it for all network - // protocols. - if res.Port != 0 { - if !pm.reserveSpecificPortLocked(res, true /* portSpecified */) { - return 0, &tcpip.ErrPortInUse{} - } - if testPort != nil { - ok, err := testPort(res.Port) - if err != nil { - pm.releasePortLocked(res) - return 0, err - } - if !ok { - pm.releasePortLocked(res) - return 0, &tcpip.ErrPortInUse{} - } - } - return res.Port, nil - } - - // A port wasn't specified, so try to find one. - return pm.PickEphemeralPort(rng, func(p uint16) (bool, tcpip.Error) { - res.Port = p - if !pm.reserveSpecificPortLocked(res, false /* portSpecified */) { - return false, nil - } - if testPort != nil { - ok, err := testPort(p) - if err != nil { - pm.releasePortLocked(res) - return false, err - } - if !ok { - pm.releasePortLocked(res) - return false, nil - } - } - return true, nil - }) -} - -// reserveSpecificPortLocked tries to reserve the given port on all given -// protocols. -func (pm *PortManager) reserveSpecificPortLocked(res Reservation, portSpecified bool) bool { - // Make sure the port is available. - for _, network := range res.Networks { - desc := portDescriptor{network, res.Transport, res.Port} - if addrs, ok := pm.allocatedPorts[desc]; ok { - if !addrs.isAvailable(res, portSpecified) { - return false - } - } - } - - // Reserve port on all network protocols. - flagBits := res.Flags.Bits() - dst := res.dst() - for _, network := range res.Networks { - desc := portDescriptor{network, res.Transport, res.Port} - addrToDev, ok := pm.allocatedPorts[desc] - if !ok { - addrToDev = make(addrToDevice) - pm.allocatedPorts[desc] = addrToDev - } - devToDest, ok := addrToDev[res.Addr] - if !ok { - devToDest = make(deviceToDest) - addrToDev[res.Addr] = devToDest - } - destToCntr := devToDest[res.BindToDevice] - if destToCntr == nil { - destToCntr = make(destToCounter) - } - counter := destToCntr[dst] - counter.AddRef(flagBits) - destToCntr[dst] = counter - devToDest[res.BindToDevice] = destToCntr - } - - return true -} - -// ReserveTuple adds a port reservation for the tuple on all given protocol. -func (pm *PortManager) ReserveTuple(res Reservation) bool { - flagBits := res.Flags.Bits() - dst := res.dst() - - pm.mu.Lock() - defer pm.mu.Unlock() - - // It is easier to undo the entire reservation, so if we find that the - // tuple can't be fully added, finish and undo the whole thing. - undo := false - - // Reserve port on all network protocols. - for _, network := range res.Networks { - desc := portDescriptor{network, res.Transport, res.Port} - addrToDev, ok := pm.allocatedPorts[desc] - if !ok { - addrToDev = make(addrToDevice) - pm.allocatedPorts[desc] = addrToDev - } - devToDest, ok := addrToDev[res.Addr] - if !ok { - devToDest = make(deviceToDest) - addrToDev[res.Addr] = devToDest - } - destToCntr := devToDest[res.BindToDevice] - if destToCntr == nil { - destToCntr = make(destToCounter) - } - - counter := destToCntr[dst] - if counter.TotalRefs() != 0 && counter.SharedFlags()&flagBits == 0 { - // Tuple already exists. - undo = true - } - counter.AddRef(flagBits) - destToCntr[dst] = counter - devToDest[res.BindToDevice] = destToCntr - } - - if undo { - // releasePortLocked decrements the counts (rather than setting - // them to zero), so it will undo the incorrect incrementing - // above. - pm.releasePortLocked(res) - return false - } - - return true -} - -// ReleasePort releases the reservation on a port/IP combination so that it can -// be reserved by other endpoints. -func (pm *PortManager) ReleasePort(res Reservation) { - pm.mu.Lock() - defer pm.mu.Unlock() - - pm.releasePortLocked(res) -} - -func (pm *PortManager) releasePortLocked(res Reservation) { - dst := res.dst() - for _, network := range res.Networks { - desc := portDescriptor{network, res.Transport, res.Port} - addrToDev, ok := pm.allocatedPorts[desc] - if !ok { - continue - } - devToDest, ok := addrToDev[res.Addr] - if !ok { - continue - } - destToCounter, ok := devToDest[res.BindToDevice] - if !ok { - continue - } - counter, ok := destToCounter[dst] - if !ok { - continue - } - counter.DropRef(res.Flags.Bits()) - if counter.TotalRefs() > 0 { - destToCounter[dst] = counter - continue - } - delete(destToCounter, dst) - if len(destToCounter) > 0 { - continue - } - delete(devToDest, res.BindToDevice) - if len(devToDest) > 0 { - continue - } - delete(addrToDev, res.Addr) - if len(addrToDev) > 0 { - continue - } - delete(pm.allocatedPorts, desc) - } -} - -// PortRange returns the UDP and TCP inclusive range of ephemeral ports used in -// both IPv4 and IPv6. -func (pm *PortManager) PortRange() (uint16, uint16) { - pm.ephemeralMu.RLock() - defer pm.ephemeralMu.RUnlock() - return pm.firstEphemeral, pm.firstEphemeral + pm.numEphemeral - 1 -} - -// SetPortRange sets the UDP and TCP IPv4 and IPv6 ephemeral port range -// (inclusive). -func (pm *PortManager) SetPortRange(start uint16, end uint16) tcpip.Error { - if start > end { - return &tcpip.ErrInvalidPortRange{} - } - pm.ephemeralMu.Lock() - defer pm.ephemeralMu.Unlock() - pm.firstEphemeral = start - pm.numEphemeral = end - start + 1 - return nil -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/ports/ports_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/ports/ports_state_autogen.go deleted file mode 100644 index 1a3ae2ad98..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/ports/ports_state_autogen.go +++ /dev/null @@ -1,163 +0,0 @@ -// automatically generated by stateify. - -package ports - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (f *Flags) StateTypeName() string { - return "pkg/tcpip/ports.Flags" -} - -func (f *Flags) StateFields() []string { - return []string{ - "MostRecent", - "LoadBalanced", - "TupleOnly", - } -} - -func (f *Flags) beforeSave() {} - -// +checklocksignore -func (f *Flags) StateSave(stateSinkObject state.Sink) { - f.beforeSave() - stateSinkObject.Save(0, &f.MostRecent) - stateSinkObject.Save(1, &f.LoadBalanced) - stateSinkObject.Save(2, &f.TupleOnly) -} - -func (f *Flags) afterLoad(context.Context) {} - -// +checklocksignore -func (f *Flags) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &f.MostRecent) - stateSourceObject.Load(1, &f.LoadBalanced) - stateSourceObject.Load(2, &f.TupleOnly) -} - -func (c *FlagCounter) StateTypeName() string { - return "pkg/tcpip/ports.FlagCounter" -} - -func (c *FlagCounter) StateFields() []string { - return []string{ - "refs", - } -} - -func (c *FlagCounter) beforeSave() {} - -// +checklocksignore -func (c *FlagCounter) StateSave(stateSinkObject state.Sink) { - c.beforeSave() - stateSinkObject.Save(0, &c.refs) -} - -func (c *FlagCounter) afterLoad(context.Context) {} - -// +checklocksignore -func (c *FlagCounter) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &c.refs) -} - -func (p *portDescriptor) StateTypeName() string { - return "pkg/tcpip/ports.portDescriptor" -} - -func (p *portDescriptor) StateFields() []string { - return []string{ - "network", - "transport", - "port", - } -} - -func (p *portDescriptor) beforeSave() {} - -// +checklocksignore -func (p *portDescriptor) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - stateSinkObject.Save(0, &p.network) - stateSinkObject.Save(1, &p.transport) - stateSinkObject.Save(2, &p.port) -} - -func (p *portDescriptor) afterLoad(context.Context) {} - -// +checklocksignore -func (p *portDescriptor) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.network) - stateSourceObject.Load(1, &p.transport) - stateSourceObject.Load(2, &p.port) -} - -func (d *destination) StateTypeName() string { - return "pkg/tcpip/ports.destination" -} - -func (d *destination) StateFields() []string { - return []string{ - "addr", - "port", - } -} - -func (d *destination) beforeSave() {} - -// +checklocksignore -func (d *destination) StateSave(stateSinkObject state.Sink) { - d.beforeSave() - stateSinkObject.Save(0, &d.addr) - stateSinkObject.Save(1, &d.port) -} - -func (d *destination) afterLoad(context.Context) {} - -// +checklocksignore -func (d *destination) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &d.addr) - stateSourceObject.Load(1, &d.port) -} - -func (pm *PortManager) StateTypeName() string { - return "pkg/tcpip/ports.PortManager" -} - -func (pm *PortManager) StateFields() []string { - return []string{ - "allocatedPorts", - "firstEphemeral", - "numEphemeral", - } -} - -func (pm *PortManager) beforeSave() {} - -// +checklocksignore -func (pm *PortManager) StateSave(stateSinkObject state.Sink) { - pm.beforeSave() - stateSinkObject.Save(0, &pm.allocatedPorts) - stateSinkObject.Save(1, &pm.firstEphemeral) - stateSinkObject.Save(2, &pm.numEphemeral) -} - -func (pm *PortManager) afterLoad(context.Context) {} - -// +checklocksignore -func (pm *PortManager) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &pm.allocatedPorts) - stateSourceObject.Load(1, &pm.firstEphemeral) - stateSourceObject.Load(2, &pm.numEphemeral) -} - -func init() { - state.Register((*Flags)(nil)) - state.Register((*FlagCounter)(nil)) - state.Register((*portDescriptor)(nil)) - state.Register((*destination)(nil)) - state.Register((*PortManager)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/route_list.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/route_list.go deleted file mode 100644 index ddc7c23fd5..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/route_list.go +++ /dev/null @@ -1,239 +0,0 @@ -package tcpip - -// ElementMapper provides an identity mapping by default. -// -// This can be replaced to provide a struct that maps elements to linker -// objects, if they are not the same. An ElementMapper is not typically -// required if: Linker is left as is, Element is left as is, or Linker and -// Element are the same type. -type RouteElementMapper struct{} - -// linkerFor maps an Element to a Linker. -// -// This default implementation should be inlined. -// -//go:nosplit -func (RouteElementMapper) linkerFor(elem *Route) *Route { return elem } - -// List is an intrusive list. Entries can be added to or removed from the list -// in O(1) time and with no additional memory allocations. -// -// The zero value for List is an empty list ready to use. -// -// To iterate over a list (where l is a List): -// -// for e := l.Front(); e != nil; e = e.Next() { -// // do something with e. -// } -// -// +stateify savable -type RouteList struct { - head *Route - tail *Route -} - -// Reset resets list l to the empty state. -func (l *RouteList) Reset() { - l.head = nil - l.tail = nil -} - -// Empty returns true iff the list is empty. -// -//go:nosplit -func (l *RouteList) Empty() bool { - return l.head == nil -} - -// Front returns the first element of list l or nil. -// -//go:nosplit -func (l *RouteList) Front() *Route { - return l.head -} - -// Back returns the last element of list l or nil. -// -//go:nosplit -func (l *RouteList) Back() *Route { - return l.tail -} - -// Len returns the number of elements in the list. -// -// NOTE: This is an O(n) operation. -// -//go:nosplit -func (l *RouteList) Len() (count int) { - for e := l.Front(); e != nil; e = (RouteElementMapper{}.linkerFor(e)).Next() { - count++ - } - return count -} - -// PushFront inserts the element e at the front of list l. -// -//go:nosplit -func (l *RouteList) PushFront(e *Route) { - linker := RouteElementMapper{}.linkerFor(e) - linker.SetNext(l.head) - linker.SetPrev(nil) - if l.head != nil { - RouteElementMapper{}.linkerFor(l.head).SetPrev(e) - } else { - l.tail = e - } - - l.head = e -} - -// PushFrontList inserts list m at the start of list l, emptying m. -// -//go:nosplit -func (l *RouteList) PushFrontList(m *RouteList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - RouteElementMapper{}.linkerFor(l.head).SetPrev(m.tail) - RouteElementMapper{}.linkerFor(m.tail).SetNext(l.head) - - l.head = m.head - } - m.head = nil - m.tail = nil -} - -// PushBack inserts the element e at the back of list l. -// -//go:nosplit -func (l *RouteList) PushBack(e *Route) { - linker := RouteElementMapper{}.linkerFor(e) - linker.SetNext(nil) - linker.SetPrev(l.tail) - if l.tail != nil { - RouteElementMapper{}.linkerFor(l.tail).SetNext(e) - } else { - l.head = e - } - - l.tail = e -} - -// PushBackList inserts list m at the end of list l, emptying m. -// -//go:nosplit -func (l *RouteList) PushBackList(m *RouteList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - RouteElementMapper{}.linkerFor(l.tail).SetNext(m.head) - RouteElementMapper{}.linkerFor(m.head).SetPrev(l.tail) - - l.tail = m.tail - } - m.head = nil - m.tail = nil -} - -// InsertAfter inserts e after b. -// -//go:nosplit -func (l *RouteList) InsertAfter(b, e *Route) { - bLinker := RouteElementMapper{}.linkerFor(b) - eLinker := RouteElementMapper{}.linkerFor(e) - - a := bLinker.Next() - - eLinker.SetNext(a) - eLinker.SetPrev(b) - bLinker.SetNext(e) - - if a != nil { - RouteElementMapper{}.linkerFor(a).SetPrev(e) - } else { - l.tail = e - } -} - -// InsertBefore inserts e before a. -// -//go:nosplit -func (l *RouteList) InsertBefore(a, e *Route) { - aLinker := RouteElementMapper{}.linkerFor(a) - eLinker := RouteElementMapper{}.linkerFor(e) - - b := aLinker.Prev() - eLinker.SetNext(a) - eLinker.SetPrev(b) - aLinker.SetPrev(e) - - if b != nil { - RouteElementMapper{}.linkerFor(b).SetNext(e) - } else { - l.head = e - } -} - -// Remove removes e from l. -// -//go:nosplit -func (l *RouteList) Remove(e *Route) { - linker := RouteElementMapper{}.linkerFor(e) - prev := linker.Prev() - next := linker.Next() - - if prev != nil { - RouteElementMapper{}.linkerFor(prev).SetNext(next) - } else if l.head == e { - l.head = next - } - - if next != nil { - RouteElementMapper{}.linkerFor(next).SetPrev(prev) - } else if l.tail == e { - l.tail = prev - } - - linker.SetNext(nil) - linker.SetPrev(nil) -} - -// Entry is a default implementation of Linker. Users can add anonymous fields -// of this type to their structs to make them automatically implement the -// methods needed by List. -// -// +stateify savable -type RouteEntry struct { - next *Route - prev *Route -} - -// Next returns the entry that follows e in the list. -// -//go:nosplit -func (e *RouteEntry) Next() *Route { - return e.next -} - -// Prev returns the entry that precedes e in the list. -// -//go:nosplit -func (e *RouteEntry) Prev() *Route { - return e.prev -} - -// SetNext assigns 'entry' as the entry that follows e in the list. -// -//go:nosplit -func (e *RouteEntry) SetNext(elem *Route) { - e.next = elem -} - -// SetPrev assigns 'entry' as the entry that precedes e in the list. -// -//go:nosplit -func (e *RouteEntry) SetPrev(elem *Route) { - e.prev = elem -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/seqnum/seqnum.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/seqnum/seqnum.go deleted file mode 100644 index d3bea7de4e..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/seqnum/seqnum.go +++ /dev/null @@ -1,62 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package seqnum defines the types and methods for TCP sequence numbers such -// that they fit in 32-bit words and work properly when overflows occur. -package seqnum - -// Value represents the value of a sequence number. -type Value uint32 - -// Size represents the size (length) of a sequence number window. -type Size uint32 - -// LessThan checks if v is before w, i.e., v < w. -func (v Value) LessThan(w Value) bool { - return int32(v-w) < 0 -} - -// LessThanEq returns true if v==w or v is before i.e., v < w. -func (v Value) LessThanEq(w Value) bool { - if v == w { - return true - } - return v.LessThan(w) -} - -// InRange checks if v is in the range [a,b), i.e., a <= v < b. -func (v Value) InRange(a, b Value) bool { - return v-a < b-a -} - -// InWindow checks if v is in the window that starts at 'first' and spans 'size' -// sequence numbers. -func (v Value) InWindow(first Value, size Size) bool { - return v.InRange(first, first.Add(size)) -} - -// Add calculates the sequence number following the [v, v+s) window. -func (v Value) Add(s Size) Value { - return v + Value(s) -} - -// Size calculates the size of the window defined by [v, w). -func (v Value) Size(w Value) Size { - return Size(w - v) -} - -// UpdateForward updates v such that it becomes v + s. -func (v *Value) UpdateForward(s Size) { - *v += Value(s) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/seqnum/seqnum_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/seqnum/seqnum_state_autogen.go deleted file mode 100644 index 23e79811da..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/seqnum/seqnum_state_autogen.go +++ /dev/null @@ -1,3 +0,0 @@ -// automatically generated by stateify. - -package seqnum diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/sock_err_list.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/sock_err_list.go deleted file mode 100644 index 47d8716c59..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/sock_err_list.go +++ /dev/null @@ -1,239 +0,0 @@ -package tcpip - -// ElementMapper provides an identity mapping by default. -// -// This can be replaced to provide a struct that maps elements to linker -// objects, if they are not the same. An ElementMapper is not typically -// required if: Linker is left as is, Element is left as is, or Linker and -// Element are the same type. -type sockErrorElementMapper struct{} - -// linkerFor maps an Element to a Linker. -// -// This default implementation should be inlined. -// -//go:nosplit -func (sockErrorElementMapper) linkerFor(elem *SockError) *SockError { return elem } - -// List is an intrusive list. Entries can be added to or removed from the list -// in O(1) time and with no additional memory allocations. -// -// The zero value for List is an empty list ready to use. -// -// To iterate over a list (where l is a List): -// -// for e := l.Front(); e != nil; e = e.Next() { -// // do something with e. -// } -// -// +stateify savable -type sockErrorList struct { - head *SockError - tail *SockError -} - -// Reset resets list l to the empty state. -func (l *sockErrorList) Reset() { - l.head = nil - l.tail = nil -} - -// Empty returns true iff the list is empty. -// -//go:nosplit -func (l *sockErrorList) Empty() bool { - return l.head == nil -} - -// Front returns the first element of list l or nil. -// -//go:nosplit -func (l *sockErrorList) Front() *SockError { - return l.head -} - -// Back returns the last element of list l or nil. -// -//go:nosplit -func (l *sockErrorList) Back() *SockError { - return l.tail -} - -// Len returns the number of elements in the list. -// -// NOTE: This is an O(n) operation. -// -//go:nosplit -func (l *sockErrorList) Len() (count int) { - for e := l.Front(); e != nil; e = (sockErrorElementMapper{}.linkerFor(e)).Next() { - count++ - } - return count -} - -// PushFront inserts the element e at the front of list l. -// -//go:nosplit -func (l *sockErrorList) PushFront(e *SockError) { - linker := sockErrorElementMapper{}.linkerFor(e) - linker.SetNext(l.head) - linker.SetPrev(nil) - if l.head != nil { - sockErrorElementMapper{}.linkerFor(l.head).SetPrev(e) - } else { - l.tail = e - } - - l.head = e -} - -// PushFrontList inserts list m at the start of list l, emptying m. -// -//go:nosplit -func (l *sockErrorList) PushFrontList(m *sockErrorList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - sockErrorElementMapper{}.linkerFor(l.head).SetPrev(m.tail) - sockErrorElementMapper{}.linkerFor(m.tail).SetNext(l.head) - - l.head = m.head - } - m.head = nil - m.tail = nil -} - -// PushBack inserts the element e at the back of list l. -// -//go:nosplit -func (l *sockErrorList) PushBack(e *SockError) { - linker := sockErrorElementMapper{}.linkerFor(e) - linker.SetNext(nil) - linker.SetPrev(l.tail) - if l.tail != nil { - sockErrorElementMapper{}.linkerFor(l.tail).SetNext(e) - } else { - l.head = e - } - - l.tail = e -} - -// PushBackList inserts list m at the end of list l, emptying m. -// -//go:nosplit -func (l *sockErrorList) PushBackList(m *sockErrorList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - sockErrorElementMapper{}.linkerFor(l.tail).SetNext(m.head) - sockErrorElementMapper{}.linkerFor(m.head).SetPrev(l.tail) - - l.tail = m.tail - } - m.head = nil - m.tail = nil -} - -// InsertAfter inserts e after b. -// -//go:nosplit -func (l *sockErrorList) InsertAfter(b, e *SockError) { - bLinker := sockErrorElementMapper{}.linkerFor(b) - eLinker := sockErrorElementMapper{}.linkerFor(e) - - a := bLinker.Next() - - eLinker.SetNext(a) - eLinker.SetPrev(b) - bLinker.SetNext(e) - - if a != nil { - sockErrorElementMapper{}.linkerFor(a).SetPrev(e) - } else { - l.tail = e - } -} - -// InsertBefore inserts e before a. -// -//go:nosplit -func (l *sockErrorList) InsertBefore(a, e *SockError) { - aLinker := sockErrorElementMapper{}.linkerFor(a) - eLinker := sockErrorElementMapper{}.linkerFor(e) - - b := aLinker.Prev() - eLinker.SetNext(a) - eLinker.SetPrev(b) - aLinker.SetPrev(e) - - if b != nil { - sockErrorElementMapper{}.linkerFor(b).SetNext(e) - } else { - l.head = e - } -} - -// Remove removes e from l. -// -//go:nosplit -func (l *sockErrorList) Remove(e *SockError) { - linker := sockErrorElementMapper{}.linkerFor(e) - prev := linker.Prev() - next := linker.Next() - - if prev != nil { - sockErrorElementMapper{}.linkerFor(prev).SetNext(next) - } else if l.head == e { - l.head = next - } - - if next != nil { - sockErrorElementMapper{}.linkerFor(next).SetPrev(prev) - } else if l.tail == e { - l.tail = prev - } - - linker.SetNext(nil) - linker.SetPrev(nil) -} - -// Entry is a default implementation of Linker. Users can add anonymous fields -// of this type to their structs to make them automatically implement the -// methods needed by List. -// -// +stateify savable -type sockErrorEntry struct { - next *SockError - prev *SockError -} - -// Next returns the entry that follows e in the list. -// -//go:nosplit -func (e *sockErrorEntry) Next() *SockError { - return e.next -} - -// Prev returns the entry that precedes e in the list. -// -//go:nosplit -func (e *sockErrorEntry) Prev() *SockError { - return e.prev -} - -// SetNext assigns 'entry' as the entry that follows e in the list. -// -//go:nosplit -func (e *sockErrorEntry) SetNext(elem *SockError) { - e.next = elem -} - -// SetPrev assigns 'entry' as the entry that precedes e in the list. -// -//go:nosplit -func (e *sockErrorEntry) SetPrev(elem *SockError) { - e.prev = elem -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/socketops.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/socketops.go deleted file mode 100644 index b8196912f8..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/socketops.go +++ /dev/null @@ -1,758 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcpip - -import ( - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/sync" -) - -// SocketOptionsHandler holds methods that help define endpoint specific -// behavior for socket level socket options. These must be implemented by -// endpoints to get notified when socket level options are set. -type SocketOptionsHandler interface { - // OnReuseAddressSet is invoked when SO_REUSEADDR is set for an endpoint. - OnReuseAddressSet(v bool) - - // OnReusePortSet is invoked when SO_REUSEPORT is set for an endpoint. - OnReusePortSet(v bool) - - // OnKeepAliveSet is invoked when SO_KEEPALIVE is set for an endpoint. - OnKeepAliveSet(v bool) - - // OnDelayOptionSet is invoked when TCP_NODELAY is set for an endpoint. - // Note that v will be the inverse of TCP_NODELAY option. - OnDelayOptionSet(v bool) - - // OnCorkOptionSet is invoked when TCP_CORK is set for an endpoint. - OnCorkOptionSet(v bool) - - // LastError is invoked when SO_ERROR is read for an endpoint. - LastError() Error - - // UpdateLastError updates the endpoint specific last error field. - UpdateLastError(err Error) - - // HasNIC is invoked to check if the NIC is valid for SO_BINDTODEVICE. - HasNIC(v int32) bool - - // OnSetSendBufferSize is invoked when the send buffer size for an endpoint is - // changed. The handler is invoked with the new value for the socket send - // buffer size. It also returns the newly set value. - OnSetSendBufferSize(v int64) (newSz int64) - - // OnSetReceiveBufferSize is invoked by SO_RCVBUF and SO_RCVBUFFORCE. The - // handler can optionally return a callback which will be called after - // the buffer size is updated to newSz. - OnSetReceiveBufferSize(v, oldSz int64) (newSz int64, postSet func()) - - // WakeupWriters is invoked when the send buffer size for an endpoint is - // changed. The handler notifies the writers if the send buffer size is - // increased with setsockopt(2) for TCP endpoints. - WakeupWriters() - - // GetAcceptConn returns true if the socket is a TCP socket and is in - // listening state. - GetAcceptConn() bool -} - -// DefaultSocketOptionsHandler is an embeddable type that implements no-op -// implementations for SocketOptionsHandler methods. -type DefaultSocketOptionsHandler struct{} - -var _ SocketOptionsHandler = (*DefaultSocketOptionsHandler)(nil) - -// OnReuseAddressSet implements SocketOptionsHandler.OnReuseAddressSet. -func (*DefaultSocketOptionsHandler) OnReuseAddressSet(bool) {} - -// OnReusePortSet implements SocketOptionsHandler.OnReusePortSet. -func (*DefaultSocketOptionsHandler) OnReusePortSet(bool) {} - -// OnKeepAliveSet implements SocketOptionsHandler.OnKeepAliveSet. -func (*DefaultSocketOptionsHandler) OnKeepAliveSet(bool) {} - -// OnDelayOptionSet implements SocketOptionsHandler.OnDelayOptionSet. -func (*DefaultSocketOptionsHandler) OnDelayOptionSet(bool) {} - -// OnCorkOptionSet implements SocketOptionsHandler.OnCorkOptionSet. -func (*DefaultSocketOptionsHandler) OnCorkOptionSet(bool) {} - -// LastError implements SocketOptionsHandler.LastError. -func (*DefaultSocketOptionsHandler) LastError() Error { - return nil -} - -// UpdateLastError implements SocketOptionsHandler.UpdateLastError. -func (*DefaultSocketOptionsHandler) UpdateLastError(Error) {} - -// HasNIC implements SocketOptionsHandler.HasNIC. -func (*DefaultSocketOptionsHandler) HasNIC(int32) bool { - return false -} - -// OnSetSendBufferSize implements SocketOptionsHandler.OnSetSendBufferSize. -func (*DefaultSocketOptionsHandler) OnSetSendBufferSize(v int64) (newSz int64) { - return v -} - -// WakeupWriters implements SocketOptionsHandler.WakeupWriters. -func (*DefaultSocketOptionsHandler) WakeupWriters() {} - -// OnSetReceiveBufferSize implements SocketOptionsHandler.OnSetReceiveBufferSize. -func (*DefaultSocketOptionsHandler) OnSetReceiveBufferSize(v, oldSz int64) (newSz int64, postSet func()) { - return v, nil -} - -// GetAcceptConn implements SocketOptionsHandler.GetAcceptConn. -func (*DefaultSocketOptionsHandler) GetAcceptConn() bool { - return false -} - -// StackHandler holds methods to access the stack options. These must be -// implemented by the stack. -type StackHandler interface { - // Option allows retrieving stack wide options. - Option(option any) Error - - // TransportProtocolOption allows retrieving individual protocol level - // option values. - TransportProtocolOption(proto TransportProtocolNumber, option GettableTransportProtocolOption) Error -} - -// SocketOptions contains all the variables which store values for SOL_SOCKET, -// SOL_IP, SOL_IPV6 and SOL_TCP level options. -// -// +stateify savable -type SocketOptions struct { - handler SocketOptionsHandler - - // StackHandler is initialized at the creation time and will not change. - stackHandler StackHandler `state:"manual"` - - // These fields are accessed and modified using atomic operations. - - // broadcastEnabled determines whether datagram sockets are allowed to - // send packets to a broadcast address. - broadcastEnabled atomicbitops.Uint32 - - // passCredEnabled determines whether SCM_CREDENTIALS socket control - // messages are enabled. - passCredEnabled atomicbitops.Uint32 - - // noChecksumEnabled determines whether UDP checksum is disabled while - // transmitting for this socket. - noChecksumEnabled atomicbitops.Uint32 - - // reuseAddressEnabled determines whether Bind() should allow reuse of - // local address. - reuseAddressEnabled atomicbitops.Uint32 - - // reusePortEnabled determines whether to permit multiple sockets to be - // bound to an identical socket address. - reusePortEnabled atomicbitops.Uint32 - - // keepAliveEnabled determines whether TCP keepalive is enabled for this - // socket. - keepAliveEnabled atomicbitops.Uint32 - - // multicastLoopEnabled determines whether multicast packets sent over a - // non-loopback interface will be looped back. - multicastLoopEnabled atomicbitops.Uint32 - - // receiveTOSEnabled is used to specify if the TOS ancillary message is - // passed with incoming packets. - receiveTOSEnabled atomicbitops.Uint32 - - // receiveTTLEnabled is used to specify if the TTL ancillary message is passed - // with incoming packets. - receiveTTLEnabled atomicbitops.Uint32 - - // receiveHopLimitEnabled is used to specify if the HopLimit ancillary message - // is passed with incoming packets. - receiveHopLimitEnabled atomicbitops.Uint32 - - // receiveTClassEnabled is used to specify if the IPV6_TCLASS ancillary - // message is passed with incoming packets. - receiveTClassEnabled atomicbitops.Uint32 - - // receivePacketInfoEnabled is used to specify if more information is - // provided with incoming IPv4 packets. - receivePacketInfoEnabled atomicbitops.Uint32 - - // receivePacketInfoEnabled is used to specify if more information is - // provided with incoming IPv6 packets. - receiveIPv6PacketInfoEnabled atomicbitops.Uint32 - - // hdrIncludeEnabled is used to indicate for a raw endpoint that all packets - // being written have an IP header and the endpoint should not attach an IP - // header. - hdrIncludedEnabled atomicbitops.Uint32 - - // v6OnlyEnabled is used to determine whether an IPv6 socket is to be - // restricted to sending and receiving IPv6 packets only. - v6OnlyEnabled atomicbitops.Uint32 - - // quickAckEnabled is used to represent the value of TCP_QUICKACK option. - // It currently does not have any effect on the TCP endpoint. - quickAckEnabled atomicbitops.Uint32 - - // delayOptionEnabled is used to specify if data should be sent out immediately - // by the transport protocol. For TCP, it determines if the Nagle algorithm - // is on or off. - delayOptionEnabled atomicbitops.Uint32 - - // corkOptionEnabled is used to specify if data should be held until segments - // are full by the TCP transport protocol. - corkOptionEnabled atomicbitops.Uint32 - - // receiveOriginalDstAddress is used to specify if the original destination of - // the incoming packet should be returned as an ancillary message. - receiveOriginalDstAddress atomicbitops.Uint32 - - // ipv4RecvErrEnabled determines whether extended reliable error message - // passing is enabled for IPv4. - ipv4RecvErrEnabled atomicbitops.Uint32 - - // ipv6RecvErrEnabled determines whether extended reliable error message - // passing is enabled for IPv6. - ipv6RecvErrEnabled atomicbitops.Uint32 - - // errQueue is the per-socket error queue. It is protected by errQueueMu. - errQueueMu sync.Mutex `state:"nosave"` - errQueue sockErrorList - - // bindToDevice determines the device to which the socket is bound. - bindToDevice atomicbitops.Int32 - - // getSendBufferLimits provides the handler to get the min, default and max - // size for send buffer. It is initialized at the creation time and will not - // change. - getSendBufferLimits GetSendBufferLimits `state:"manual"` - - // sendBufferSize determines the send buffer size for this socket. - sendBufferSize atomicbitops.Int64 - - // getReceiveBufferLimits provides the handler to get the min, default and - // max size for receive buffer. It is initialized at the creation time and - // will not change. - getReceiveBufferLimits GetReceiveBufferLimits `state:"manual"` - - // receiveBufferSize determines the receive buffer size for this socket. - receiveBufferSize atomicbitops.Int64 - - // mu protects the access to the below fields. - mu sync.Mutex `state:"nosave"` - - // linger determines the amount of time the socket should linger before - // close. We currently implement this option for TCP socket only. - linger LingerOption - - // rcvlowat specifies the minimum number of bytes which should be - // received to indicate the socket as readable. - rcvlowat atomicbitops.Int32 -} - -// InitHandler initializes the handler. This must be called before using the -// socket options utility. -func (so *SocketOptions) InitHandler(handler SocketOptionsHandler, stack StackHandler, getSendBufferLimits GetSendBufferLimits, getReceiveBufferLimits GetReceiveBufferLimits) { - so.handler = handler - so.stackHandler = stack - so.getSendBufferLimits = getSendBufferLimits - so.getReceiveBufferLimits = getReceiveBufferLimits -} - -func storeAtomicBool(addr *atomicbitops.Uint32, v bool) { - var val uint32 - if v { - val = 1 - } - addr.Store(val) -} - -// SetLastError sets the last error for a socket. -func (so *SocketOptions) SetLastError(err Error) { - so.handler.UpdateLastError(err) -} - -// GetBroadcast gets value for SO_BROADCAST option. -func (so *SocketOptions) GetBroadcast() bool { - return so.broadcastEnabled.Load() != 0 -} - -// SetBroadcast sets value for SO_BROADCAST option. -func (so *SocketOptions) SetBroadcast(v bool) { - storeAtomicBool(&so.broadcastEnabled, v) -} - -// GetPassCred gets value for SO_PASSCRED option. -func (so *SocketOptions) GetPassCred() bool { - return so.passCredEnabled.Load() != 0 -} - -// SetPassCred sets value for SO_PASSCRED option. -func (so *SocketOptions) SetPassCred(v bool) { - storeAtomicBool(&so.passCredEnabled, v) -} - -// GetNoChecksum gets value for SO_NO_CHECK option. -func (so *SocketOptions) GetNoChecksum() bool { - return so.noChecksumEnabled.Load() != 0 -} - -// SetNoChecksum sets value for SO_NO_CHECK option. -func (so *SocketOptions) SetNoChecksum(v bool) { - storeAtomicBool(&so.noChecksumEnabled, v) -} - -// GetReuseAddress gets value for SO_REUSEADDR option. -func (so *SocketOptions) GetReuseAddress() bool { - return so.reuseAddressEnabled.Load() != 0 -} - -// SetReuseAddress sets value for SO_REUSEADDR option. -func (so *SocketOptions) SetReuseAddress(v bool) { - storeAtomicBool(&so.reuseAddressEnabled, v) - so.handler.OnReuseAddressSet(v) -} - -// GetReusePort gets value for SO_REUSEPORT option. -func (so *SocketOptions) GetReusePort() bool { - return so.reusePortEnabled.Load() != 0 -} - -// SetReusePort sets value for SO_REUSEPORT option. -func (so *SocketOptions) SetReusePort(v bool) { - storeAtomicBool(&so.reusePortEnabled, v) - so.handler.OnReusePortSet(v) -} - -// GetKeepAlive gets value for SO_KEEPALIVE option. -func (so *SocketOptions) GetKeepAlive() bool { - return so.keepAliveEnabled.Load() != 0 -} - -// SetKeepAlive sets value for SO_KEEPALIVE option. -func (so *SocketOptions) SetKeepAlive(v bool) { - storeAtomicBool(&so.keepAliveEnabled, v) - so.handler.OnKeepAliveSet(v) -} - -// GetMulticastLoop gets value for IP_MULTICAST_LOOP option. -func (so *SocketOptions) GetMulticastLoop() bool { - return so.multicastLoopEnabled.Load() != 0 -} - -// SetMulticastLoop sets value for IP_MULTICAST_LOOP option. -func (so *SocketOptions) SetMulticastLoop(v bool) { - storeAtomicBool(&so.multicastLoopEnabled, v) -} - -// GetReceiveTOS gets value for IP_RECVTOS option. -func (so *SocketOptions) GetReceiveTOS() bool { - return so.receiveTOSEnabled.Load() != 0 -} - -// SetReceiveTOS sets value for IP_RECVTOS option. -func (so *SocketOptions) SetReceiveTOS(v bool) { - storeAtomicBool(&so.receiveTOSEnabled, v) -} - -// GetReceiveTTL gets value for IP_RECVTTL option. -func (so *SocketOptions) GetReceiveTTL() bool { - return so.receiveTTLEnabled.Load() != 0 -} - -// SetReceiveTTL sets value for IP_RECVTTL option. -func (so *SocketOptions) SetReceiveTTL(v bool) { - storeAtomicBool(&so.receiveTTLEnabled, v) -} - -// GetReceiveHopLimit gets value for IP_RECVHOPLIMIT option. -func (so *SocketOptions) GetReceiveHopLimit() bool { - return so.receiveHopLimitEnabled.Load() != 0 -} - -// SetReceiveHopLimit sets value for IP_RECVHOPLIMIT option. -func (so *SocketOptions) SetReceiveHopLimit(v bool) { - storeAtomicBool(&so.receiveHopLimitEnabled, v) -} - -// GetReceiveTClass gets value for IPV6_RECVTCLASS option. -func (so *SocketOptions) GetReceiveTClass() bool { - return so.receiveTClassEnabled.Load() != 0 -} - -// SetReceiveTClass sets value for IPV6_RECVTCLASS option. -func (so *SocketOptions) SetReceiveTClass(v bool) { - storeAtomicBool(&so.receiveTClassEnabled, v) -} - -// GetReceivePacketInfo gets value for IP_PKTINFO option. -func (so *SocketOptions) GetReceivePacketInfo() bool { - return so.receivePacketInfoEnabled.Load() != 0 -} - -// SetReceivePacketInfo sets value for IP_PKTINFO option. -func (so *SocketOptions) SetReceivePacketInfo(v bool) { - storeAtomicBool(&so.receivePacketInfoEnabled, v) -} - -// GetIPv6ReceivePacketInfo gets value for IPV6_RECVPKTINFO option. -func (so *SocketOptions) GetIPv6ReceivePacketInfo() bool { - return so.receiveIPv6PacketInfoEnabled.Load() != 0 -} - -// SetIPv6ReceivePacketInfo sets value for IPV6_RECVPKTINFO option. -func (so *SocketOptions) SetIPv6ReceivePacketInfo(v bool) { - storeAtomicBool(&so.receiveIPv6PacketInfoEnabled, v) -} - -// GetHeaderIncluded gets value for IP_HDRINCL option. -func (so *SocketOptions) GetHeaderIncluded() bool { - return so.hdrIncludedEnabled.Load() != 0 -} - -// SetHeaderIncluded sets value for IP_HDRINCL option. -func (so *SocketOptions) SetHeaderIncluded(v bool) { - storeAtomicBool(&so.hdrIncludedEnabled, v) -} - -// GetV6Only gets value for IPV6_V6ONLY option. -func (so *SocketOptions) GetV6Only() bool { - return so.v6OnlyEnabled.Load() != 0 -} - -// SetV6Only sets value for IPV6_V6ONLY option. -// -// Preconditions: the backing TCP or UDP endpoint must be in initial state. -func (so *SocketOptions) SetV6Only(v bool) { - storeAtomicBool(&so.v6OnlyEnabled, v) -} - -// GetQuickAck gets value for TCP_QUICKACK option. -func (so *SocketOptions) GetQuickAck() bool { - return so.quickAckEnabled.Load() != 0 -} - -// SetQuickAck sets value for TCP_QUICKACK option. -func (so *SocketOptions) SetQuickAck(v bool) { - storeAtomicBool(&so.quickAckEnabled, v) -} - -// GetDelayOption gets inverted value for TCP_NODELAY option. -func (so *SocketOptions) GetDelayOption() bool { - return so.delayOptionEnabled.Load() != 0 -} - -// SetDelayOption sets inverted value for TCP_NODELAY option. -func (so *SocketOptions) SetDelayOption(v bool) { - storeAtomicBool(&so.delayOptionEnabled, v) - so.handler.OnDelayOptionSet(v) -} - -// GetCorkOption gets value for TCP_CORK option. -func (so *SocketOptions) GetCorkOption() bool { - return so.corkOptionEnabled.Load() != 0 -} - -// SetCorkOption sets value for TCP_CORK option. -func (so *SocketOptions) SetCorkOption(v bool) { - storeAtomicBool(&so.corkOptionEnabled, v) - so.handler.OnCorkOptionSet(v) -} - -// GetReceiveOriginalDstAddress gets value for IP(V6)_RECVORIGDSTADDR option. -func (so *SocketOptions) GetReceiveOriginalDstAddress() bool { - return so.receiveOriginalDstAddress.Load() != 0 -} - -// SetReceiveOriginalDstAddress sets value for IP(V6)_RECVORIGDSTADDR option. -func (so *SocketOptions) SetReceiveOriginalDstAddress(v bool) { - storeAtomicBool(&so.receiveOriginalDstAddress, v) -} - -// GetIPv4RecvError gets value for IP_RECVERR option. -func (so *SocketOptions) GetIPv4RecvError() bool { - return so.ipv4RecvErrEnabled.Load() != 0 -} - -// SetIPv4RecvError sets value for IP_RECVERR option. -func (so *SocketOptions) SetIPv4RecvError(v bool) { - storeAtomicBool(&so.ipv4RecvErrEnabled, v) - if !v { - so.pruneErrQueue() - } -} - -// GetIPv6RecvError gets value for IPV6_RECVERR option. -func (so *SocketOptions) GetIPv6RecvError() bool { - return so.ipv6RecvErrEnabled.Load() != 0 -} - -// SetIPv6RecvError sets value for IPV6_RECVERR option. -func (so *SocketOptions) SetIPv6RecvError(v bool) { - storeAtomicBool(&so.ipv6RecvErrEnabled, v) - if !v { - so.pruneErrQueue() - } -} - -// GetLastError gets value for SO_ERROR option. -func (so *SocketOptions) GetLastError() Error { - return so.handler.LastError() -} - -// GetOutOfBandInline gets value for SO_OOBINLINE option. -func (*SocketOptions) GetOutOfBandInline() bool { - return true -} - -// SetOutOfBandInline sets value for SO_OOBINLINE option. We currently do not -// support disabling this option. -func (*SocketOptions) SetOutOfBandInline(bool) {} - -// GetLinger gets value for SO_LINGER option. -func (so *SocketOptions) GetLinger() LingerOption { - so.mu.Lock() - linger := so.linger - so.mu.Unlock() - return linger -} - -// SetLinger sets value for SO_LINGER option. -func (so *SocketOptions) SetLinger(linger LingerOption) { - so.mu.Lock() - so.linger = linger - so.mu.Unlock() -} - -// SockErrOrigin represents the constants for error origin. -type SockErrOrigin uint8 - -const ( - // SockExtErrorOriginNone represents an unknown error origin. - SockExtErrorOriginNone SockErrOrigin = iota - - // SockExtErrorOriginLocal indicates a local error. - SockExtErrorOriginLocal - - // SockExtErrorOriginICMP indicates an IPv4 ICMP error. - SockExtErrorOriginICMP - - // SockExtErrorOriginICMP6 indicates an IPv6 ICMP error. - SockExtErrorOriginICMP6 -) - -// IsICMPErr indicates if the error originated from an ICMP error. -func (origin SockErrOrigin) IsICMPErr() bool { - return origin == SockExtErrorOriginICMP || origin == SockExtErrorOriginICMP6 -} - -// SockErrorCause is the cause of a socket error. -type SockErrorCause interface { - // Origin is the source of the error. - Origin() SockErrOrigin - - // Type is the origin specific type of error. - Type() uint8 - - // Code is the origin and type specific error code. - Code() uint8 - - // Info is any extra information about the error. - Info() uint32 -} - -// LocalSockError is a socket error that originated from the local host. -// -// +stateify savable -type LocalSockError struct { - info uint32 -} - -// Origin implements SockErrorCause. -func (*LocalSockError) Origin() SockErrOrigin { - return SockExtErrorOriginLocal -} - -// Type implements SockErrorCause. -func (*LocalSockError) Type() uint8 { - return 0 -} - -// Code implements SockErrorCause. -func (*LocalSockError) Code() uint8 { - return 0 -} - -// Info implements SockErrorCause. -func (l *LocalSockError) Info() uint32 { - return l.info -} - -// SockError represents a queue entry in the per-socket error queue. -// -// +stateify savable -type SockError struct { - sockErrorEntry - - // Err is the error caused by the errant packet. - Err Error - // Cause is the detailed cause of the error. - Cause SockErrorCause - - // Payload is the errant packet's payload. - Payload *buffer.View - // Dst is the original destination address of the errant packet. - Dst FullAddress - // Offender is the original sender address of the errant packet. - Offender FullAddress - // NetProto is the network protocol being used to transmit the packet. - NetProto NetworkProtocolNumber -} - -// pruneErrQueue resets the queue. -func (so *SocketOptions) pruneErrQueue() { - so.errQueueMu.Lock() - so.errQueue.Reset() - so.errQueueMu.Unlock() -} - -// DequeueErr dequeues a socket extended error from the error queue and returns -// it. Returns nil if queue is empty. -func (so *SocketOptions) DequeueErr() *SockError { - so.errQueueMu.Lock() - defer so.errQueueMu.Unlock() - - err := so.errQueue.Front() - if err != nil { - so.errQueue.Remove(err) - } - return err -} - -// PeekErr returns the error in the front of the error queue. Returns nil if -// the error queue is empty. -func (so *SocketOptions) PeekErr() *SockError { - so.errQueueMu.Lock() - defer so.errQueueMu.Unlock() - return so.errQueue.Front() -} - -// QueueErr inserts the error at the back of the error queue. -// -// Preconditions: so.GetIPv4RecvError() or so.GetIPv6RecvError() is true. -func (so *SocketOptions) QueueErr(err *SockError) { - so.errQueueMu.Lock() - defer so.errQueueMu.Unlock() - so.errQueue.PushBack(err) -} - -// QueueLocalErr queues a local error onto the local queue. -func (so *SocketOptions) QueueLocalErr(err Error, net NetworkProtocolNumber, info uint32, dst FullAddress, payload *buffer.View) { - so.QueueErr(&SockError{ - Err: err, - Cause: &LocalSockError{info: info}, - Payload: payload, - Dst: dst, - NetProto: net, - }) -} - -// GetBindToDevice gets value for SO_BINDTODEVICE option. -func (so *SocketOptions) GetBindToDevice() int32 { - return so.bindToDevice.Load() -} - -// SetBindToDevice sets value for SO_BINDTODEVICE option. If bindToDevice is -// zero, the socket device binding is removed. -func (so *SocketOptions) SetBindToDevice(bindToDevice int32) Error { - if bindToDevice != 0 && !so.handler.HasNIC(bindToDevice) { - return &ErrUnknownDevice{} - } - - so.bindToDevice.Store(bindToDevice) - return nil -} - -// GetSendBufferSize gets value for SO_SNDBUF option. -func (so *SocketOptions) GetSendBufferSize() int64 { - return so.sendBufferSize.Load() -} - -// SendBufferLimits returns the [min, max) range of allowable send buffer -// sizes. -func (so *SocketOptions) SendBufferLimits() (min, max int64) { - limits := so.getSendBufferLimits(so.stackHandler) - return int64(limits.Min), int64(limits.Max) -} - -// SetSendBufferSize sets value for SO_SNDBUF option. notify indicates if the -// stack handler should be invoked to set the send buffer size. -func (so *SocketOptions) SetSendBufferSize(sendBufferSize int64, notify bool) { - if notify { - sendBufferSize = so.handler.OnSetSendBufferSize(sendBufferSize) - } - so.sendBufferSize.Store(sendBufferSize) - if notify { - so.handler.WakeupWriters() - } -} - -// GetReceiveBufferSize gets value for SO_RCVBUF option. -func (so *SocketOptions) GetReceiveBufferSize() int64 { - return so.receiveBufferSize.Load() -} - -// ReceiveBufferLimits returns the [min, max) range of allowable receive buffer -// sizes. -func (so *SocketOptions) ReceiveBufferLimits() (min, max int64) { - limits := so.getReceiveBufferLimits(so.stackHandler) - return int64(limits.Min), int64(limits.Max) -} - -// SetReceiveBufferSize sets the value of the SO_RCVBUF option, optionally -// notifying the owning endpoint. -func (so *SocketOptions) SetReceiveBufferSize(receiveBufferSize int64, notify bool) { - var postSet func() - if notify { - oldSz := so.receiveBufferSize.Load() - receiveBufferSize, postSet = so.handler.OnSetReceiveBufferSize(receiveBufferSize, oldSz) - } - so.receiveBufferSize.Store(receiveBufferSize) - if postSet != nil { - postSet() - } -} - -// GetRcvlowat gets value for SO_RCVLOWAT option. -func (so *SocketOptions) GetRcvlowat() int32 { - // TODO(b/226603727): Return so.rcvlowat after adding complete support - // for SO_RCVLOWAT option. For now, return the default value of 1. - defaultRcvlowat := int32(1) - return defaultRcvlowat -} - -// SetRcvlowat sets value for SO_RCVLOWAT option. -func (so *SocketOptions) SetRcvlowat(rcvlowat int32) Error { - so.rcvlowat.Store(rcvlowat) - return nil -} - -// GetAcceptConn gets value for SO_ACCEPTCONN option. -func (so *SocketOptions) GetAcceptConn() bool { - return so.handler.GetAcceptConn() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/address_state_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/address_state_mutex.go deleted file mode 100644 index 8373da7eb6..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/address_state_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type addressStateRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var addressStatelockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type addressStatelockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *addressStateRWMutex) Lock() { - locking.AddGLock(addressStateprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *addressStateRWMutex) NestedLock(i addressStatelockNameIndex) { - locking.AddGLock(addressStateprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *addressStateRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(addressStateprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *addressStateRWMutex) NestedUnlock(i addressStatelockNameIndex) { - m.mu.Unlock() - locking.DelGLock(addressStateprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *addressStateRWMutex) RLock() { - locking.AddGLock(addressStateprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *addressStateRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(addressStateprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *addressStateRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *addressStateRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *addressStateRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var addressStateprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func addressStateinitLockNames() {} - -func init() { - addressStateinitLockNames() - addressStateprefixIndex = locking.NewMutexClass(reflect.TypeOf(addressStateRWMutex{}), addressStatelockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/address_state_refs.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/address_state_refs.go deleted file mode 100644 index 3be2d55b3e..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/address_state_refs.go +++ /dev/null @@ -1,142 +0,0 @@ -package stack - -import ( - "context" - "fmt" - - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/refs" -) - -// enableLogging indicates whether reference-related events should be logged (with -// stack traces). This is false by default and should only be set to true for -// debugging purposes, as it can generate an extremely large amount of output -// and drastically degrade performance. -const addressStateenableLogging = false - -// obj is used to customize logging. Note that we use a pointer to T so that -// we do not copy the entire object when passed as a format parameter. -var addressStateobj *addressState - -// Refs implements refs.RefCounter. It keeps a reference count using atomic -// operations and calls the destructor when the count reaches zero. -// -// NOTE: Do not introduce additional fields to the Refs struct. It is used by -// many filesystem objects, and we want to keep it as small as possible (i.e., -// the same size as using an int64 directly) to avoid taking up extra cache -// space. In general, this template should not be extended at the cost of -// performance. If it does not offer enough flexibility for a particular object -// (example: b/187877947), we should implement the RefCounter/CheckedObject -// interfaces manually. -// -// +stateify savable -type addressStateRefs struct { - // refCount is composed of two fields: - // - // [32-bit speculative references]:[32-bit real references] - // - // Speculative references are used for TryIncRef, to avoid a CompareAndSwap - // loop. See IncRef, DecRef and TryIncRef for details of how these fields are - // used. - refCount atomicbitops.Int64 -} - -// InitRefs initializes r with one reference and, if enabled, activates leak -// checking. -func (r *addressStateRefs) InitRefs() { - - r.refCount.RacyStore(1) - refs.Register(r) -} - -// RefType implements refs.CheckedObject.RefType. -func (r *addressStateRefs) RefType() string { - return fmt.Sprintf("%T", addressStateobj)[1:] -} - -// LeakMessage implements refs.CheckedObject.LeakMessage. -func (r *addressStateRefs) LeakMessage() string { - return fmt.Sprintf("[%s %p] reference count of %d instead of 0", r.RefType(), r, r.ReadRefs()) -} - -// LogRefs implements refs.CheckedObject.LogRefs. -func (r *addressStateRefs) LogRefs() bool { - return addressStateenableLogging -} - -// ReadRefs returns the current number of references. The returned count is -// inherently racy and is unsafe to use without external synchronization. -func (r *addressStateRefs) ReadRefs() int64 { - return r.refCount.Load() -} - -// IncRef implements refs.RefCounter.IncRef. -// -//go:nosplit -func (r *addressStateRefs) IncRef() { - v := r.refCount.Add(1) - if addressStateenableLogging { - refs.LogIncRef(r, v) - } - if v <= 1 { - panic(fmt.Sprintf("Incrementing non-positive count %p on %s", r, r.RefType())) - } -} - -// TryIncRef implements refs.TryRefCounter.TryIncRef. -// -// To do this safely without a loop, a speculative reference is first acquired -// on the object. This allows multiple concurrent TryIncRef calls to distinguish -// other TryIncRef calls from genuine references held. -// -//go:nosplit -func (r *addressStateRefs) TryIncRef() bool { - const speculativeRef = 1 << 32 - if v := r.refCount.Add(speculativeRef); int32(v) == 0 { - - r.refCount.Add(-speculativeRef) - return false - } - - v := r.refCount.Add(-speculativeRef + 1) - if addressStateenableLogging { - refs.LogTryIncRef(r, v) - } - return true -} - -// DecRef implements refs.RefCounter.DecRef. -// -// Note that speculative references are counted here. Since they were added -// prior to real references reaching zero, they will successfully convert to -// real references. In other words, we see speculative references only in the -// following case: -// -// A: TryIncRef [speculative increase => sees non-negative references] -// B: DecRef [real decrease] -// A: TryIncRef [transform speculative to real] -// -//go:nosplit -func (r *addressStateRefs) DecRef(destroy func()) { - v := r.refCount.Add(-1) - if addressStateenableLogging { - refs.LogDecRef(r, v) - } - switch { - case v < 0: - panic(fmt.Sprintf("Decrementing non-positive ref count %p, owned by %s", r, r.RefType())) - - case v == 0: - refs.Unregister(r) - - if destroy != nil { - destroy() - } - } -} - -func (r *addressStateRefs) afterLoad(context.Context) { - if r.ReadRefs() > 0 { - refs.Register(r) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/addressable_endpoint_state.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/addressable_endpoint_state.go deleted file mode 100644 index bb2e0faf0f..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/addressable_endpoint_state.go +++ /dev/null @@ -1,952 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "fmt" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" -) - -func (lifetimes *AddressLifetimes) sanitize() { - if lifetimes.Deprecated { - lifetimes.PreferredUntil = tcpip.MonotonicTime{} - } -} - -var _ AddressableEndpoint = (*AddressableEndpointState)(nil) - -// AddressableEndpointState is an implementation of an AddressableEndpoint. -// -// +stateify savable -type AddressableEndpointState struct { - networkEndpoint NetworkEndpoint - options AddressableEndpointStateOptions - - // Lock ordering (from outer to inner lock ordering): - // - // AddressableEndpointState.mu - // addressState.mu - mu addressableEndpointStateRWMutex `state:"nosave"` - // TODO(b/361075310): Enable s/r for the below fields. - // - // +checklocks:mu - endpoints map[tcpip.Address]*addressState `state:"nosave"` - // +checklocks:mu - primary []*addressState `state:"nosave"` -} - -// AddressableEndpointStateOptions contains options used to configure an -// AddressableEndpointState. -// -// +stateify savable -type AddressableEndpointStateOptions struct { - // HiddenWhileDisabled determines whether addresses should be returned to - // callers while the NetworkEndpoint this AddressableEndpointState belongs - // to is disabled. - HiddenWhileDisabled bool -} - -// Init initializes the AddressableEndpointState with networkEndpoint. -// -// Must be called before calling any other function on m. -func (a *AddressableEndpointState) Init(networkEndpoint NetworkEndpoint, options AddressableEndpointStateOptions) { - a.networkEndpoint = networkEndpoint - a.options = options - - a.mu.Lock() - defer a.mu.Unlock() - a.endpoints = make(map[tcpip.Address]*addressState) -} - -// OnNetworkEndpointEnabledChanged must be called every time the -// NetworkEndpoint this AddressableEndpointState belongs to is enabled or -// disabled so that any AddressDispatchers can be notified of the NIC enabled -// change. -func (a *AddressableEndpointState) OnNetworkEndpointEnabledChanged() { - a.mu.RLock() - defer a.mu.RUnlock() - - for _, ep := range a.endpoints { - ep.mu.Lock() - ep.notifyChangedLocked() - ep.mu.Unlock() - } -} - -// GetAddress returns the AddressEndpoint for the passed address. -// -// GetAddress does not increment the address's reference count or check if the -// address is considered bound to the endpoint. -// -// Returns nil if the passed address is not associated with the endpoint. -func (a *AddressableEndpointState) GetAddress(addr tcpip.Address) AddressEndpoint { - a.mu.RLock() - defer a.mu.RUnlock() - - ep, ok := a.endpoints[addr] - if !ok { - return nil - } - return ep -} - -// ForEachEndpoint calls f for each address. -// -// Once f returns false, f will no longer be called. -func (a *AddressableEndpointState) ForEachEndpoint(f func(AddressEndpoint) bool) { - a.mu.RLock() - defer a.mu.RUnlock() - - for _, ep := range a.endpoints { - if !f(ep) { - return - } - } -} - -// ForEachPrimaryEndpoint calls f for each primary address. -// -// Once f returns false, f will no longer be called. -func (a *AddressableEndpointState) ForEachPrimaryEndpoint(f func(AddressEndpoint) bool) { - a.mu.RLock() - defer a.mu.RUnlock() - - for _, ep := range a.primary { - if !f(ep) { - return - } - } -} - -func (a *AddressableEndpointState) releaseAddressState(addrState *addressState) { - a.mu.Lock() - defer a.mu.Unlock() - a.releaseAddressStateLocked(addrState) -} - -// releaseAddressStateLocked removes addrState from a's address state -// (primary and endpoints list). -// -// +checklocks:a.mu -func (a *AddressableEndpointState) releaseAddressStateLocked(addrState *addressState) { - oldPrimary := a.primary - for i, s := range a.primary { - if s == addrState { - a.primary = append(a.primary[:i], a.primary[i+1:]...) - oldPrimary[len(oldPrimary)-1] = nil - break - } - } - delete(a.endpoints, addrState.addr.Address) -} - -// AddAndAcquirePermanentAddress implements AddressableEndpoint. -func (a *AddressableEndpointState) AddAndAcquirePermanentAddress(addr tcpip.AddressWithPrefix, properties AddressProperties) (AddressEndpoint, tcpip.Error) { - return a.AddAndAcquireAddress(addr, properties, Permanent) -} - -// AddAndAcquireTemporaryAddress adds a temporary address. -// -// Returns *tcpip.ErrDuplicateAddress if the address exists. -// -// The temporary address's endpoint is acquired and returned. -func (a *AddressableEndpointState) AddAndAcquireTemporaryAddress(addr tcpip.AddressWithPrefix, peb PrimaryEndpointBehavior) (AddressEndpoint, tcpip.Error) { - return a.AddAndAcquireAddress(addr, AddressProperties{PEB: peb}, Temporary) -} - -// AddAndAcquireAddress adds an address with the specified kind. -// -// Returns *tcpip.ErrDuplicateAddress if the address exists. -func (a *AddressableEndpointState) AddAndAcquireAddress(addr tcpip.AddressWithPrefix, properties AddressProperties, kind AddressKind) (AddressEndpoint, tcpip.Error) { - a.mu.Lock() - defer a.mu.Unlock() - ep, err := a.addAndAcquireAddressLocked(addr, properties, kind) - // From https://golang.org/doc/faq#nil_error: - // - // Under the covers, interfaces are implemented as two elements, a type T and - // a value V. - // - // An interface value is nil only if the V and T are both unset, (T=nil, V is - // not set), In particular, a nil interface will always hold a nil type. If we - // store a nil pointer of type *int inside an interface value, the inner type - // will be *int regardless of the value of the pointer: (T=*int, V=nil). Such - // an interface value will therefore be non-nil even when the pointer value V - // inside is nil. - // - // Since addAndAcquireAddressLocked returns a nil value with a non-nil type, - // we need to explicitly return nil below if ep is (a typed) nil. - if ep == nil { - return nil, err - } - return ep, err -} - -// addAndAcquireAddressLocked adds, acquires and returns a permanent or -// temporary address. -// -// If the addressable endpoint already has the address in a non-permanent state, -// and addAndAcquireAddressLocked is adding a permanent address, that address is -// promoted in place and its properties set to the properties provided. If the -// address already exists in any other state, then *tcpip.ErrDuplicateAddress is -// returned, regardless the kind of address that is being added. -// -// +checklocks:a.mu -func (a *AddressableEndpointState) addAndAcquireAddressLocked(addr tcpip.AddressWithPrefix, properties AddressProperties, kind AddressKind) (*addressState, tcpip.Error) { - var permanent bool - switch kind { - case PermanentExpired: - panic(fmt.Sprintf("cannot add address %s in PermanentExpired state", addr)) - case Permanent, PermanentTentative: - permanent = true - case Temporary: - default: - panic(fmt.Sprintf("unknown address kind: %d", kind)) - } - // attemptAddToPrimary is false when the address is already in the primary - // address list. - attemptAddToPrimary := true - addrState, ok := a.endpoints[addr.Address] - if ok { - if !permanent { - // We are adding a non-permanent address but the address exists. No need - // to go any further since we can only promote existing temporary/expired - // addresses to permanent. - return nil, &tcpip.ErrDuplicateAddress{} - } - - addrState.mu.RLock() - if addrState.refs.ReadRefs() == 0 { - panic(fmt.Sprintf("found an address that should have been released (ref count == 0); address = %s", addrState.addr)) - } - isPermanent := addrState.kind.IsPermanent() - addrState.mu.RUnlock() - - if isPermanent { - // We are adding a permanent address but a permanent address already - // exists. - return nil, &tcpip.ErrDuplicateAddress{} - } - - // We now promote the address. - for i, s := range a.primary { - if s == addrState { - switch properties.PEB { - case CanBePrimaryEndpoint: - // The address is already in the primary address list. - attemptAddToPrimary = false - case FirstPrimaryEndpoint: - if i == 0 { - // The address is already first in the primary address list. - attemptAddToPrimary = false - } else { - a.primary = append(a.primary[:i], a.primary[i+1:]...) - } - case NeverPrimaryEndpoint: - a.primary = append(a.primary[:i], a.primary[i+1:]...) - default: - panic(fmt.Sprintf("unrecognized primary endpoint behaviour = %d", properties.PEB)) - } - break - } - } - addrState.refs.IncRef() - } else { - addrState = &addressState{ - addressableEndpointState: a, - addr: addr, - temporary: properties.Temporary, - // Cache the subnet in addrState to avoid calls to addr.Subnet() as that - // results in allocations on every call. - subnet: addr.Subnet(), - } - addrState.refs.InitRefs() - a.endpoints[addr.Address] = addrState - // We never promote an address to temporary - it can only be added as such. - // If we are actually adding a permanent address, it is promoted below. - addrState.kind = Temporary - } - - // At this point we have an address we are either promoting from an expired or - // temporary address to permanent, promoting an expired address to temporary, - // or we are adding a new temporary or permanent address. - // - // The address MUST be write locked at this point. - addrState.mu.Lock() - defer addrState.mu.Unlock() - - if permanent { - if addrState.kind.IsPermanent() { - panic(fmt.Sprintf("only non-permanent addresses should be promoted to permanent; address = %s", addrState.addr)) - } - - // Primary addresses are biased by 1. - addrState.refs.IncRef() - addrState.kind = kind - } - addrState.configType = properties.ConfigType - lifetimes := properties.Lifetimes - lifetimes.sanitize() - addrState.lifetimes = lifetimes - addrState.disp = properties.Disp - - if attemptAddToPrimary { - switch properties.PEB { - case NeverPrimaryEndpoint: - case CanBePrimaryEndpoint: - a.primary = append(a.primary, addrState) - case FirstPrimaryEndpoint: - if cap(a.primary) == len(a.primary) { - a.primary = append([]*addressState{addrState}, a.primary...) - } else { - // Shift all the endpoints by 1 to make room for the new address at the - // front. We could have just created a new slice but this saves - // allocations when the slice has capacity for the new address. - primaryCount := len(a.primary) - a.primary = append(a.primary, nil) - if n := copy(a.primary[1:], a.primary); n != primaryCount { - panic(fmt.Sprintf("copied %d elements; expected = %d elements", n, primaryCount)) - } - a.primary[0] = addrState - } - default: - panic(fmt.Sprintf("unrecognized primary endpoint behaviour = %d", properties.PEB)) - } - } - - addrState.notifyChangedLocked() - return addrState, nil -} - -// RemovePermanentAddress implements AddressableEndpoint. -func (a *AddressableEndpointState) RemovePermanentAddress(addr tcpip.Address) tcpip.Error { - a.mu.Lock() - defer a.mu.Unlock() - return a.removePermanentAddressLocked(addr) -} - -// removePermanentAddressLocked is like RemovePermanentAddress but with locking -// requirements. -// -// +checklocks:a.mu -func (a *AddressableEndpointState) removePermanentAddressLocked(addr tcpip.Address) tcpip.Error { - addrState, ok := a.endpoints[addr] - if !ok { - return &tcpip.ErrBadLocalAddress{} - } - - return a.removePermanentEndpointLocked(addrState, AddressRemovalManualAction) -} - -// RemovePermanentEndpoint removes the passed endpoint if it is associated with -// a and permanent. -func (a *AddressableEndpointState) RemovePermanentEndpoint(ep AddressEndpoint, reason AddressRemovalReason) tcpip.Error { - addrState, ok := ep.(*addressState) - if !ok || addrState.addressableEndpointState != a { - return &tcpip.ErrInvalidEndpointState{} - } - - a.mu.Lock() - defer a.mu.Unlock() - return a.removePermanentEndpointLocked(addrState, reason) -} - -// removePermanentAddressLocked is like RemovePermanentAddress but with locking -// requirements. -// -// +checklocks:a.mu -func (a *AddressableEndpointState) removePermanentEndpointLocked(addrState *addressState, reason AddressRemovalReason) tcpip.Error { - if !addrState.GetKind().IsPermanent() { - return &tcpip.ErrBadLocalAddress{} - } - - addrState.remove(reason) - a.decAddressRefLocked(addrState) - return nil -} - -// decAddressRef decrements the address's reference count and releases it once -// the reference count hits 0. -func (a *AddressableEndpointState) decAddressRef(addrState *addressState) { - a.mu.Lock() - defer a.mu.Unlock() - a.decAddressRefLocked(addrState) -} - -// decAddressRefLocked is like decAddressRef but with locking requirements. -// -// +checklocks:a.mu -func (a *AddressableEndpointState) decAddressRefLocked(addrState *addressState) { - destroy := false - addrState.refs.DecRef(func() { - destroy = true - }) - - if !destroy { - return - } - addrState.mu.Lock() - defer addrState.mu.Unlock() - // A non-expired permanent address must not have its reference count dropped - // to 0. - if addrState.kind.IsPermanent() { - panic(fmt.Sprintf("permanent addresses should be removed through the AddressableEndpoint: addr = %s, kind = %d", addrState.addr, addrState.kind)) - } - - a.releaseAddressStateLocked(addrState) -} - -// SetDeprecated implements stack.AddressableEndpoint. -func (a *AddressableEndpointState) SetDeprecated(addr tcpip.Address, deprecated bool) tcpip.Error { - a.mu.RLock() - defer a.mu.RUnlock() - - addrState, ok := a.endpoints[addr] - if !ok { - return &tcpip.ErrBadLocalAddress{} - } - addrState.SetDeprecated(deprecated) - return nil -} - -// SetLifetimes implements stack.AddressableEndpoint. -func (a *AddressableEndpointState) SetLifetimes(addr tcpip.Address, lifetimes AddressLifetimes) tcpip.Error { - a.mu.RLock() - defer a.mu.RUnlock() - - addrState, ok := a.endpoints[addr] - if !ok { - return &tcpip.ErrBadLocalAddress{} - } - addrState.SetLifetimes(lifetimes) - return nil -} - -// MainAddress implements AddressableEndpoint. -func (a *AddressableEndpointState) MainAddress() tcpip.AddressWithPrefix { - a.mu.RLock() - defer a.mu.RUnlock() - - ep := a.acquirePrimaryAddressRLocked(tcpip.Address{}, tcpip.Address{} /* srcHint */, func(ep *addressState) bool { - switch kind := ep.GetKind(); kind { - case Permanent: - return a.networkEndpoint.Enabled() || !a.options.HiddenWhileDisabled - case PermanentTentative, PermanentExpired, Temporary: - return false - default: - panic(fmt.Sprintf("unknown address kind: %d", kind)) - } - }) - if ep == nil { - return tcpip.AddressWithPrefix{} - } - addr := ep.AddressWithPrefix() - // Note that when ep must have a ref count >=2, because its ref count - // must be >=1 in order to be found and the ref count was incremented - // when a reference was acquired. The only way for the ref count to - // drop below 2 is for the endpoint to be removed, which requires a - // write lock; so we're guaranteed to be able to decrement the ref - // count and not need to remove the endpoint from a.primary. - ep.decRefMustNotFree() - return addr -} - -// acquirePrimaryAddressRLocked returns an acquired primary address that is -// valid according to isValid. -// -// +checklocksread:a.mu -func (a *AddressableEndpointState) acquirePrimaryAddressRLocked(remoteAddr, srcHint tcpip.Address, isValid func(*addressState) bool) *addressState { - // TODO: Move this out into IPv4-specific code. - // IPv6 handles source IP selection elsewhere. We have to do source - // selection only for IPv4, in which case ep is never deprecated. Thus - // we don't have to worry about refcounts. - if remoteAddr.Len() == header.IPv4AddressSize && remoteAddr != (tcpip.Address{}) { - var best *addressState - var bestLen uint8 - for _, state := range a.primary { - if !isValid(state) { - continue - } - // Source hint takes precedent over prefix matching. - if state.addr.Address == srcHint && srcHint != (tcpip.Address{}) { - best = state - break - } - stateLen := state.addr.Address.MatchingPrefix(remoteAddr) - if best == nil || bestLen < stateLen { - best = state - bestLen = stateLen - } - } - if best != nil && best.TryIncRef() { - return best - } - } - - var deprecatedEndpoint *addressState - for _, ep := range a.primary { - if !isValid(ep) { - continue - } - - if !ep.Deprecated() { - if ep.TryIncRef() { - // ep is not deprecated, so return it immediately. - // - // If we kept track of a deprecated endpoint, decrement its reference - // count since it was incremented when we decided to keep track of it. - if deprecatedEndpoint != nil { - // Note that when deprecatedEndpoint was found, its ref count - // must have necessarily been >=1, and after incrementing it - // must be >=2. The only way for the ref count to drop below 2 is - // for the endpoint to be removed, which requires a write lock; - // so we're guaranteed to be able to decrement the ref count - // and not need to remove the endpoint from a.primary. - deprecatedEndpoint.decRefMustNotFree() - } - - return ep - } - } else if deprecatedEndpoint == nil && ep.TryIncRef() { - // We prefer an endpoint that is not deprecated, but we keep track of - // ep in case a doesn't have any non-deprecated endpoints. - // - // If we end up finding a more preferred endpoint, ep's reference count - // will be decremented. - deprecatedEndpoint = ep - } - } - - return deprecatedEndpoint -} - -// AcquireAssignedAddressOrMatching returns an address endpoint that is -// considered assigned to the addressable endpoint. -// -// If the address is an exact match with an existing address, that address is -// returned. Otherwise, if f is provided, f is called with each address and -// the address that f returns true for is returned. -// -// If there is no matching address, a temporary address will be returned if -// allowTemp is true. -// -// If readOnly is true, the address will be returned without an extra reference. -// In this case it is not safe to modify the endpoint, only read attributes like -// subnet. -// -// Regardless how the address was obtained, it will be acquired before it is -// returned. -func (a *AddressableEndpointState) AcquireAssignedAddressOrMatching(localAddr tcpip.Address, f func(AddressEndpoint) bool, allowTemp bool, tempPEB PrimaryEndpointBehavior, readOnly bool) AddressEndpoint { - lookup := func() *addressState { - if addrState, ok := a.endpoints[localAddr]; ok { - if !addrState.IsAssigned(allowTemp) { - return nil - } - - if !readOnly && !addrState.TryIncRef() { - panic(fmt.Sprintf("failed to increase the reference count for address = %s", addrState.addr)) - } - - return addrState - } - - if f != nil { - for _, addrState := range a.endpoints { - if addrState.IsAssigned(allowTemp) && f(addrState) { - if !readOnly && !addrState.TryIncRef() { - continue - } - return addrState - } - } - } - return nil - } - // Avoid exclusive lock on mu unless we need to add a new address. - a.mu.RLock() - ep := lookup() - a.mu.RUnlock() - - if ep != nil { - return ep - } - - if !allowTemp { - return nil - } - - // Acquire state lock in exclusive mode as we need to add a new temporary - // endpoint. - a.mu.Lock() - defer a.mu.Unlock() - - // Do the lookup again in case another goroutine added the address in the time - // we released and acquired the lock. - ep = lookup() - if ep != nil { - return ep - } - - // Proceed to add a new temporary endpoint. - addr := localAddr.WithPrefix() - ep, err := a.addAndAcquireAddressLocked(addr, AddressProperties{PEB: tempPEB}, Temporary) - if err != nil { - // addAndAcquireAddressLocked only returns an error if the address is - // already assigned but we just checked above if the address exists so we - // expect no error. - panic(fmt.Sprintf("a.addAndAcquireAddressLocked(%s, AddressProperties{PEB: %s}, false): %s", addr, tempPEB, err)) - } - - // From https://golang.org/doc/faq#nil_error: - // - // Under the covers, interfaces are implemented as two elements, a type T and - // a value V. - // - // An interface value is nil only if the V and T are both unset, (T=nil, V is - // not set), In particular, a nil interface will always hold a nil type. If we - // store a nil pointer of type *int inside an interface value, the inner type - // will be *int regardless of the value of the pointer: (T=*int, V=nil). Such - // an interface value will therefore be non-nil even when the pointer value V - // inside is nil. - // - // Since addAndAcquireAddressLocked returns a nil value with a non-nil type, - // we need to explicitly return nil below if ep is (a typed) nil. - if ep == nil { - return nil - } - if readOnly { - if ep.addressableEndpointState == a { - // Checklocks doesn't understand that we are logically guaranteed to have - // ep.mu locked already. We need to use checklocksignore to appease the - // analyzer. - ep.addressableEndpointState.decAddressRefLocked(ep) // +checklocksignore - } else { - ep.DecRef() - } - } - return ep -} - -// AcquireAssignedAddress implements AddressableEndpoint. -func (a *AddressableEndpointState) AcquireAssignedAddress(localAddr tcpip.Address, allowTemp bool, tempPEB PrimaryEndpointBehavior, readOnly bool) AddressEndpoint { - return a.AcquireAssignedAddressOrMatching(localAddr, nil, allowTemp, tempPEB, readOnly) -} - -// AcquireOutgoingPrimaryAddress implements AddressableEndpoint. -func (a *AddressableEndpointState) AcquireOutgoingPrimaryAddress(remoteAddr tcpip.Address, srcHint tcpip.Address, allowExpired bool) AddressEndpoint { - a.mu.Lock() - defer a.mu.Unlock() - - ep := a.acquirePrimaryAddressRLocked(remoteAddr, srcHint, func(ep *addressState) bool { - return ep.IsAssigned(allowExpired) - }) - - // From https://golang.org/doc/faq#nil_error: - // - // Under the covers, interfaces are implemented as two elements, a type T and - // a value V. - // - // An interface value is nil only if the V and T are both unset, (T=nil, V is - // not set), In particular, a nil interface will always hold a nil type. If we - // store a nil pointer of type *int inside an interface value, the inner type - // will be *int regardless of the value of the pointer: (T=*int, V=nil). Such - // an interface value will therefore be non-nil even when the pointer value V - // inside is nil. - // - // Since acquirePrimaryAddressLocked returns a nil value with a non-nil type, - // we need to explicitly return nil below if ep is (a typed) nil. - if ep == nil { - return nil - } - - return ep -} - -// PrimaryAddresses implements AddressableEndpoint. -func (a *AddressableEndpointState) PrimaryAddresses() []tcpip.AddressWithPrefix { - a.mu.RLock() - defer a.mu.RUnlock() - - var addrs []tcpip.AddressWithPrefix - if a.options.HiddenWhileDisabled && !a.networkEndpoint.Enabled() { - return addrs - } - for _, ep := range a.primary { - switch kind := ep.GetKind(); kind { - // Don't include tentative, expired or temporary endpoints - // to avoid confusion and prevent the caller from using - // those. - case PermanentTentative, PermanentExpired, Temporary: - continue - case Permanent: - default: - panic(fmt.Sprintf("address %s has unknown kind %d", ep.AddressWithPrefix(), kind)) - } - - addrs = append(addrs, ep.AddressWithPrefix()) - } - - return addrs -} - -// PermanentAddresses implements AddressableEndpoint. -func (a *AddressableEndpointState) PermanentAddresses() []tcpip.AddressWithPrefix { - a.mu.RLock() - defer a.mu.RUnlock() - - var addrs []tcpip.AddressWithPrefix - for _, ep := range a.endpoints { - if !ep.GetKind().IsPermanent() { - continue - } - - addrs = append(addrs, ep.AddressWithPrefix()) - } - - return addrs -} - -// Cleanup forcefully leaves all groups and removes all permanent addresses. -func (a *AddressableEndpointState) Cleanup() { - a.mu.Lock() - defer a.mu.Unlock() - - for _, ep := range a.endpoints { - // removePermanentEndpointLocked returns *tcpip.ErrBadLocalAddress if ep is - // not a permanent address. - switch err := a.removePermanentEndpointLocked(ep, AddressRemovalInterfaceRemoved); err.(type) { - case nil, *tcpip.ErrBadLocalAddress: - default: - panic(fmt.Sprintf("unexpected error from removePermanentEndpointLocked(%s): %s", ep.addr, err)) - } - } -} - -var _ AddressEndpoint = (*addressState)(nil) - -// addressState holds state for an address. -// -// +stateify savable -type addressState struct { - addressableEndpointState *AddressableEndpointState - addr tcpip.AddressWithPrefix - subnet tcpip.Subnet - temporary bool - - // Lock ordering (from outer to inner lock ordering): - // - // AddressableEndpointState.mu - // addressState.mu - mu addressStateRWMutex `state:"nosave"` - refs addressStateRefs - // checklocks:mu - kind AddressKind - // checklocks:mu - configType AddressConfigType - // lifetimes holds this address' lifetimes. - // - // Invariant: if lifetimes.deprecated is true, then lifetimes.PreferredUntil - // must be the zero value. Note that the converse does not need to be - // upheld! - // - // checklocks:mu - lifetimes AddressLifetimes - // The enclosing mutex must be write-locked before calling methods on the - // dispatcher. - // - // checklocks:mu - disp AddressDispatcher -} - -// AddressWithPrefix implements AddressEndpoint. -func (a *addressState) AddressWithPrefix() tcpip.AddressWithPrefix { - return a.addr -} - -// Subnet implements AddressEndpoint. -func (a *addressState) Subnet() tcpip.Subnet { - return a.subnet -} - -// GetKind implements AddressEndpoint. -func (a *addressState) GetKind() AddressKind { - a.mu.RLock() - defer a.mu.RUnlock() - return a.kind -} - -// SetKind implements AddressEndpoint. -func (a *addressState) SetKind(kind AddressKind) { - a.mu.Lock() - defer a.mu.Unlock() - - prevKind := a.kind - a.kind = kind - if kind == PermanentExpired { - a.notifyRemovedLocked(AddressRemovalManualAction) - } else if prevKind != kind && a.addressableEndpointState.networkEndpoint.Enabled() { - a.notifyChangedLocked() - } -} - -// notifyRemovedLocked notifies integrators of address removal. -// -// +checklocks:a.mu -func (a *addressState) notifyRemovedLocked(reason AddressRemovalReason) { - if disp := a.disp; disp != nil { - a.disp.OnRemoved(reason) - a.disp = nil - } -} - -func (a *addressState) remove(reason AddressRemovalReason) { - a.mu.Lock() - defer a.mu.Unlock() - - a.kind = PermanentExpired - a.notifyRemovedLocked(reason) -} - -// IsAssigned implements AddressEndpoint. -func (a *addressState) IsAssigned(allowExpired bool) bool { - switch kind := a.GetKind(); kind { - case PermanentTentative: - return false - case PermanentExpired: - return allowExpired - case Permanent, Temporary: - return true - default: - panic(fmt.Sprintf("address %s has unknown kind %d", a.AddressWithPrefix(), kind)) - } -} - -// IncRef implements AddressEndpoint. -func (a *addressState) TryIncRef() bool { - return a.refs.TryIncRef() -} - -// DecRef implements AddressEndpoint. -func (a *addressState) DecRef() { - a.addressableEndpointState.decAddressRef(a) -} - -// decRefMustNotFree decreases the reference count with the guarantee that the -// reference count will be greater than 0 after the decrement. -// -// Panics if the ref count is less than 2 after acquiring the lock in this -// function. -func (a *addressState) decRefMustNotFree() { - a.refs.DecRef(func() { - panic(fmt.Sprintf("cannot decrease addressState %s without freeing the endpoint", a.addr)) - }) -} - -// ConfigType implements AddressEndpoint. -func (a *addressState) ConfigType() AddressConfigType { - a.mu.RLock() - defer a.mu.RUnlock() - return a.configType -} - -// notifyChangedLocked notifies integrators of address property changes. -// -// +checklocks:a.mu -func (a *addressState) notifyChangedLocked() { - if a.disp == nil { - return - } - - state := AddressDisabled - if a.addressableEndpointState.networkEndpoint.Enabled() { - switch a.kind { - case Permanent: - state = AddressAssigned - case PermanentTentative: - state = AddressTentative - case Temporary, PermanentExpired: - return - default: - panic(fmt.Sprintf("unrecognized address kind = %d", a.kind)) - } - } - - a.disp.OnChanged(a.lifetimes, state) -} - -// SetDeprecated implements AddressEndpoint. -func (a *addressState) SetDeprecated(d bool) { - a.mu.Lock() - defer a.mu.Unlock() - - var changed bool - if a.lifetimes.Deprecated != d { - a.lifetimes.Deprecated = d - changed = true - } - if d { - a.lifetimes.PreferredUntil = tcpip.MonotonicTime{} - } - if changed { - a.notifyChangedLocked() - } -} - -// Deprecated implements AddressEndpoint. -func (a *addressState) Deprecated() bool { - a.mu.RLock() - defer a.mu.RUnlock() - return a.lifetimes.Deprecated -} - -// SetLifetimes implements AddressEndpoint. -func (a *addressState) SetLifetimes(lifetimes AddressLifetimes) { - a.mu.Lock() - defer a.mu.Unlock() - - lifetimes.sanitize() - - var changed bool - if a.lifetimes != lifetimes { - changed = true - } - a.lifetimes = lifetimes - if changed { - a.notifyChangedLocked() - } -} - -// Lifetimes implements AddressEndpoint. -func (a *addressState) Lifetimes() AddressLifetimes { - a.mu.RLock() - defer a.mu.RUnlock() - return a.lifetimes -} - -// Temporary implements AddressEndpoint. -func (a *addressState) Temporary() bool { - return a.temporary -} - -// RegisterDispatcher implements AddressEndpoint. -func (a *addressState) RegisterDispatcher(disp AddressDispatcher) { - a.mu.Lock() - defer a.mu.Unlock() - if disp != nil { - a.disp = disp - a.notifyChangedLocked() - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/addressable_endpoint_state_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/addressable_endpoint_state_mutex.go deleted file mode 100644 index 56ea53e379..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/addressable_endpoint_state_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type addressableEndpointStateRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var addressableEndpointStatelockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type addressableEndpointStatelockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *addressableEndpointStateRWMutex) Lock() { - locking.AddGLock(addressableEndpointStateprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *addressableEndpointStateRWMutex) NestedLock(i addressableEndpointStatelockNameIndex) { - locking.AddGLock(addressableEndpointStateprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *addressableEndpointStateRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(addressableEndpointStateprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *addressableEndpointStateRWMutex) NestedUnlock(i addressableEndpointStatelockNameIndex) { - m.mu.Unlock() - locking.DelGLock(addressableEndpointStateprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *addressableEndpointStateRWMutex) RLock() { - locking.AddGLock(addressableEndpointStateprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *addressableEndpointStateRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(addressableEndpointStateprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *addressableEndpointStateRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *addressableEndpointStateRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *addressableEndpointStateRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var addressableEndpointStateprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func addressableEndpointStateinitLockNames() {} - -func init() { - addressableEndpointStateinitLockNames() - addressableEndpointStateprefixIndex = locking.NewMutexClass(reflect.TypeOf(addressableEndpointStateRWMutex{}), addressableEndpointStatelockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/bridge.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/bridge.go deleted file mode 100644 index 50c8f96401..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/bridge.go +++ /dev/null @@ -1,232 +0,0 @@ -// Copyright 2024 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" -) - -var _ NetworkLinkEndpoint = (*BridgeEndpoint)(nil) - -// +stateify savable -type bridgePort struct { - bridge *BridgeEndpoint - nic *nic -} - -// ParseHeader implements stack.LinkEndpoint. -func (p *bridgePort) ParseHeader(pkt *PacketBuffer) bool { - _, ok := pkt.LinkHeader().Consume(header.EthernetMinimumSize) - return ok -} - -// DeliverNetworkPacket implements stack.NetworkDispatcher. -func (p *bridgePort) DeliverNetworkPacket(protocol tcpip.NetworkProtocolNumber, pkt *PacketBuffer) { - bridge := p.bridge - bridge.mu.RLock() - - // Send the packet to all other ports. - for _, port := range bridge.ports { - if p == port { - continue - } - newPkt := NewPacketBuffer(PacketBufferOptions{ - ReserveHeaderBytes: int(port.nic.MaxHeaderLength()), - Payload: pkt.ToBuffer(), - }) - port.nic.writeRawPacket(newPkt) - newPkt.DecRef() - } - - d := bridge.dispatcher - bridge.mu.RUnlock() - if d != nil { - // The dispatcher may acquire Stack.mu in DeliverNetworkPacket(), which is - // ordered above bridge.mu. So call DeliverNetworkPacket() without holding - // bridge.mu to avoid circular locking. - d.DeliverNetworkPacket(protocol, pkt) - } -} - -func (p *bridgePort) DeliverLinkPacket(protocol tcpip.NetworkProtocolNumber, pkt *PacketBuffer) { -} - -// NewBridgeEndpoint creates a new bridge endpoint. -func NewBridgeEndpoint(mtu uint32) *BridgeEndpoint { - b := &BridgeEndpoint{ - mtu: mtu, - addr: tcpip.GetRandMacAddr(), - } - b.ports = make(map[tcpip.NICID]*bridgePort) - return b -} - -// BridgeEndpoint is a bridge endpoint. -// -// +stateify savable -type BridgeEndpoint struct { - mu bridgeRWMutex `state:"nosave"` - // +checklocks:mu - ports map[tcpip.NICID]*bridgePort - // +checklocks:mu - dispatcher NetworkDispatcher - // +checklocks:mu - addr tcpip.LinkAddress - // +checklocks:mu - attached bool - // +checklocks:mu - mtu uint32 - maxHeaderLength atomicbitops.Uint32 -} - -// WritePackets implements stack.LinkEndpoint.WritePackets. -func (b *BridgeEndpoint) WritePackets(pkts PacketBufferList) (int, tcpip.Error) { - b.mu.RLock() - defer b.mu.RUnlock() - - pktsSlice := pkts.AsSlice() - n := len(pktsSlice) - for _, p := range b.ports { - for _, pkt := range pktsSlice { - // In order to properly loop back to the inbound side we must create a - // fresh packet that only contains the underlying payload with no headers - // or struct fields set. - newPkt := NewPacketBuffer(PacketBufferOptions{ - Payload: pkt.ToBuffer(), - ReserveHeaderBytes: int(p.nic.MaxHeaderLength()), - }) - newPkt.EgressRoute = pkt.EgressRoute - newPkt.NetworkProtocolNumber = pkt.NetworkProtocolNumber - p.nic.writePacket(newPkt) - newPkt.DecRef() - } - } - - return n, nil -} - -// AddNIC adds the specified NIC to the bridge. -func (b *BridgeEndpoint) AddNIC(n *nic) tcpip.Error { - b.mu.Lock() - defer b.mu.Unlock() - - port := &bridgePort{ - nic: n, - bridge: b, - } - n.NetworkLinkEndpoint.Attach(port) - b.ports[n.id] = port - - if b.maxHeaderLength.Load() < uint32(n.MaxHeaderLength()) { - b.maxHeaderLength.Store(uint32(n.MaxHeaderLength())) - } - - return nil -} - -// DelNIC remove the specified NIC from the bridge. -func (b *BridgeEndpoint) DelNIC(nic *nic) tcpip.Error { - b.mu.Lock() - defer b.mu.Unlock() - - delete(b.ports, nic.id) - nic.NetworkLinkEndpoint.Attach(nic) - return nil -} - -// MTU implements stack.LinkEndpoint.MTU. -func (b *BridgeEndpoint) MTU() uint32 { - b.mu.RLock() - defer b.mu.RUnlock() - if b.mtu > header.EthernetMinimumSize { - return b.mtu - header.EthernetMinimumSize - } - return 0 -} - -// SetMTU implements stack.LinkEndpoint.SetMTU. -func (b *BridgeEndpoint) SetMTU(mtu uint32) { - b.mu.Lock() - defer b.mu.Unlock() - b.mtu = mtu -} - -// MaxHeaderLength implements stack.LinkEndpoint. -func (b *BridgeEndpoint) MaxHeaderLength() uint16 { - return uint16(b.maxHeaderLength.Load()) -} - -// LinkAddress implements stack.LinkEndpoint.LinkAddress. -func (b *BridgeEndpoint) LinkAddress() tcpip.LinkAddress { - b.mu.Lock() - defer b.mu.Unlock() - return b.addr -} - -// SetLinkAddress implements stack.LinkEndpoint.SetLinkAddress. -func (b *BridgeEndpoint) SetLinkAddress(addr tcpip.LinkAddress) { - b.mu.Lock() - defer b.mu.Unlock() - b.addr = addr -} - -// Capabilities implements stack.LinkEndpoint.Capabilities. -func (b *BridgeEndpoint) Capabilities() LinkEndpointCapabilities { - return CapabilityRXChecksumOffload | CapabilitySaveRestore | CapabilityResolutionRequired -} - -// Attach implements stack.LinkEndpoint.Attach. -func (b *BridgeEndpoint) Attach(dispatcher NetworkDispatcher) { - b.mu.Lock() - defer b.mu.Unlock() - for _, p := range b.ports { - p.nic.Primary = nil - } - b.dispatcher = dispatcher - b.ports = make(map[tcpip.NICID]*bridgePort) -} - -// IsAttached implements stack.LinkEndpoint.IsAttached. -func (b *BridgeEndpoint) IsAttached() bool { - b.mu.RLock() - defer b.mu.RUnlock() - return b.dispatcher != nil -} - -// Wait implements stack.LinkEndpoint.Wait. -func (b *BridgeEndpoint) Wait() { -} - -// ARPHardwareType implements stack.LinkEndpoint.ARPHardwareType. -func (b *BridgeEndpoint) ARPHardwareType() header.ARPHardwareType { - return header.ARPHardwareEther -} - -// AddHeader implements stack.LinkEndpoint.AddHeader. -func (b *BridgeEndpoint) AddHeader(pkt *PacketBuffer) { -} - -// ParseHeader implements stack.LinkEndpoint.ParseHeader. -func (b *BridgeEndpoint) ParseHeader(*PacketBuffer) bool { - return true -} - -// Close implements stack.LinkEndpoint.Close. -func (b *BridgeEndpoint) Close() {} - -// SetOnCloseAction implements stack.LinkEndpoint.Close. -func (b *BridgeEndpoint) SetOnCloseAction(func()) {} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/bridge_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/bridge_mutex.go deleted file mode 100644 index 33d6693600..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/bridge_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type bridgeRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var bridgelockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type bridgelockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *bridgeRWMutex) Lock() { - locking.AddGLock(bridgeprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *bridgeRWMutex) NestedLock(i bridgelockNameIndex) { - locking.AddGLock(bridgeprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *bridgeRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(bridgeprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *bridgeRWMutex) NestedUnlock(i bridgelockNameIndex) { - m.mu.Unlock() - locking.DelGLock(bridgeprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *bridgeRWMutex) RLock() { - locking.AddGLock(bridgeprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *bridgeRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(bridgeprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *bridgeRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *bridgeRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *bridgeRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var bridgeprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func bridgeinitLockNames() {} - -func init() { - bridgeinitLockNames() - bridgeprefixIndex = locking.NewMutexClass(reflect.TypeOf(bridgeRWMutex{}), bridgelockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/bucket_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/bucket_mutex.go deleted file mode 100644 index 3cee9c8273..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/bucket_mutex.go +++ /dev/null @@ -1,98 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type bucketRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var bucketlockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type bucketlockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -const ( - bucketLockOthertuple = bucketlockNameIndex(0) -) -const () - -// Lock locks m. -// +checklocksignore -func (m *bucketRWMutex) Lock() { - locking.AddGLock(bucketprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *bucketRWMutex) NestedLock(i bucketlockNameIndex) { - locking.AddGLock(bucketprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *bucketRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(bucketprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *bucketRWMutex) NestedUnlock(i bucketlockNameIndex) { - m.mu.Unlock() - locking.DelGLock(bucketprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *bucketRWMutex) RLock() { - locking.AddGLock(bucketprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *bucketRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(bucketprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *bucketRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *bucketRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *bucketRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var bucketprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func bucketinitLockNames() { bucketlockNames = []string{"otherTuple"} } - -func init() { - bucketinitLockNames() - bucketprefixIndex = locking.NewMutexClass(reflect.TypeOf(bucketRWMutex{}), bucketlockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/cleanup_endpoints_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/cleanup_endpoints_mutex.go deleted file mode 100644 index 0516e7b08e..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/cleanup_endpoints_mutex.go +++ /dev/null @@ -1,64 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// Mutex is sync.Mutex with the correctness validator. -type cleanupEndpointsMutex struct { - mu sync.Mutex -} - -var cleanupEndpointsprefixIndex *locking.MutexClass - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var cleanupEndpointslockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type cleanupEndpointslockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *cleanupEndpointsMutex) Lock() { - locking.AddGLock(cleanupEndpointsprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *cleanupEndpointsMutex) NestedLock(i cleanupEndpointslockNameIndex) { - locking.AddGLock(cleanupEndpointsprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *cleanupEndpointsMutex) Unlock() { - locking.DelGLock(cleanupEndpointsprefixIndex, -1) - m.mu.Unlock() -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *cleanupEndpointsMutex) NestedUnlock(i cleanupEndpointslockNameIndex) { - locking.DelGLock(cleanupEndpointsprefixIndex, int(i)) - m.mu.Unlock() -} - -// DO NOT REMOVE: The following function is automatically replaced. -func cleanupEndpointsinitLockNames() {} - -func init() { - cleanupEndpointsinitLockNames() - cleanupEndpointsprefixIndex = locking.NewMutexClass(reflect.TypeOf(cleanupEndpointsMutex{}), cleanupEndpointslockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/conn_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/conn_mutex.go deleted file mode 100644 index 6a9905edcd..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/conn_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type connRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var connlockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type connlockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *connRWMutex) Lock() { - locking.AddGLock(connprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *connRWMutex) NestedLock(i connlockNameIndex) { - locking.AddGLock(connprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *connRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(connprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *connRWMutex) NestedUnlock(i connlockNameIndex) { - m.mu.Unlock() - locking.DelGLock(connprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *connRWMutex) RLock() { - locking.AddGLock(connprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *connRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(connprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *connRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *connRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *connRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var connprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func conninitLockNames() {} - -func init() { - conninitLockNames() - connprefixIndex = locking.NewMutexClass(reflect.TypeOf(connRWMutex{}), connlockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/conn_track_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/conn_track_mutex.go deleted file mode 100644 index b416fda790..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/conn_track_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type connTrackRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var connTracklockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type connTracklockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *connTrackRWMutex) Lock() { - locking.AddGLock(connTrackprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *connTrackRWMutex) NestedLock(i connTracklockNameIndex) { - locking.AddGLock(connTrackprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *connTrackRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(connTrackprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *connTrackRWMutex) NestedUnlock(i connTracklockNameIndex) { - m.mu.Unlock() - locking.DelGLock(connTrackprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *connTrackRWMutex) RLock() { - locking.AddGLock(connTrackprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *connTrackRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(connTrackprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *connTrackRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *connTrackRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *connTrackRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var connTrackprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func connTrackinitLockNames() {} - -func init() { - connTrackinitLockNames() - connTrackprefixIndex = locking.NewMutexClass(reflect.TypeOf(connTrackRWMutex{}), connTracklockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/conntrack.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/conntrack.go deleted file mode 100644 index ba11e38124..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/conntrack.go +++ /dev/null @@ -1,1169 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "encoding/binary" - "fmt" - "math" - "math/rand" - "sync" - "time" - - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/hash/jenkins" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/transport/tcpconntrack" -) - -// Connection tracking is used to track and manipulate packets for NAT rules. -// The connection is created for a packet if it does not exist. Every -// connection contains two tuples (original and reply). The tuples are -// manipulated if there is a matching NAT rule. The packet is modified by -// looking at the tuples in each hook. -// -// Currently, only TCP tracking is supported. - -// Our hash table has 16K buckets. -const numBuckets = 1 << 14 - -const ( - establishedTimeout time.Duration = 5 * 24 * time.Hour - unestablishedTimeout time.Duration = 120 * time.Second -) - -// tuple holds a connection's identifying and manipulating data in one -// direction. It is immutable. -// -// +stateify savable -type tuple struct { - // tupleEntry is used to build an intrusive list of tuples. - tupleEntry - - // conn is the connection tracking entry this tuple belongs to. - conn *conn - - // reply is true iff the tuple's direction is opposite that of the first - // packet seen on the connection. - reply bool - - // tupleID is set at initialization and is immutable. - tupleID tupleID -} - -// tupleID uniquely identifies a trackable connection in one direction. -// -// +stateify savable -type tupleID struct { - srcAddr tcpip.Address - // The source port of a packet in the original direction is overloaded with - // the ident of an Echo Request packet. - // - // This also matches the behaviour of sending packets on Linux where the - // socket's source port value is used for the source port of outgoing packets - // for TCP/UDP and the ident field for outgoing Echo Requests on Ping sockets: - // - // IPv4: https://github.com/torvalds/linux/blob/c5c17547b778975b3d83a73c8d84e8fb5ecf3ba5/net/ipv4/ping.c#L810 - // IPv6: https://github.com/torvalds/linux/blob/c5c17547b778975b3d83a73c8d84e8fb5ecf3ba5/net/ipv6/ping.c#L133 - srcPortOrEchoRequestIdent uint16 - dstAddr tcpip.Address - // The opposite of srcPortOrEchoRequestIdent; the destination port of a packet - // in the reply direction is overloaded with the ident of an Echo Reply. - dstPortOrEchoReplyIdent uint16 - transProto tcpip.TransportProtocolNumber - netProto tcpip.NetworkProtocolNumber -} - -// reply creates the reply tupleID. -func (ti tupleID) reply() tupleID { - return tupleID{ - srcAddr: ti.dstAddr, - srcPortOrEchoRequestIdent: ti.dstPortOrEchoReplyIdent, - dstAddr: ti.srcAddr, - dstPortOrEchoReplyIdent: ti.srcPortOrEchoRequestIdent, - transProto: ti.transProto, - netProto: ti.netProto, - } -} - -type manipType int - -const ( - // manipNotPerformed indicates that NAT has not been performed. - manipNotPerformed manipType = iota - - // manipPerformed indicates that NAT was performed. - manipPerformed - - // manipPerformedNoop indicates that NAT was performed but it was a no-op. - manipPerformedNoop -) - -type finalizeResult uint32 - -const ( - // A finalizeResult must be explicitly set so we don't make use of the zero - // value. - _ finalizeResult = iota - - finalizeResultSuccess - finalizeResultConflict -) - -// conn is a tracked connection. -// -// +stateify savable -type conn struct { - ct *ConnTrack - - // original is the tuple in original direction. It is immutable. - original tuple - - // reply is the tuple in reply direction. - reply tuple - - // TODO(b/341946753): Restore when netstack is savable. - finalizeOnce sync.Once `state:"nosave"` - // Holds a finalizeResult. - finalizeResult atomicbitops.Uint32 - - mu connRWMutex `state:"nosave"` - // sourceManip indicates the source manipulation type. - // - // +checklocks:mu - sourceManip manipType - // destinationManip indicates the destination's manipulation type. - // - // +checklocks:mu - destinationManip manipType - - stateMu stateConnRWMutex `state:"nosave"` - // tcb is TCB control block. It is used to keep track of states - // of tcp connection. - // - // +checklocks:stateMu - tcb tcpconntrack.TCB - // lastUsed is the last time the connection saw a relevant packet, and - // is updated by each packet on the connection. - // - // +checklocks:stateMu - lastUsed tcpip.MonotonicTime -} - -// timedOut returns whether the connection timed out based on its state. -func (cn *conn) timedOut(now tcpip.MonotonicTime) bool { - cn.stateMu.RLock() - defer cn.stateMu.RUnlock() - if cn.tcb.State() == tcpconntrack.ResultAlive { - // Use the same default as Linux, which doesn't delete - // established connections for 5(!) days. - return now.Sub(cn.lastUsed) > establishedTimeout - } - // Use the same default as Linux, which lets connections in most states - // other than established remain for <= 120 seconds. - return now.Sub(cn.lastUsed) > unestablishedTimeout -} - -// update the connection tracking state. -func (cn *conn) update(pkt *PacketBuffer, reply bool) { - cn.stateMu.Lock() - defer cn.stateMu.Unlock() - - // Mark the connection as having been used recently so it isn't reaped. - cn.lastUsed = cn.ct.clock.NowMonotonic() - - if pkt.TransportProtocolNumber != header.TCPProtocolNumber { - return - } - - tcpHeader := header.TCP(pkt.TransportHeader().Slice()) - - // Update the state of tcb. tcb assumes it's always initialized on the - // client. However, we only need to know whether the connection is - // established or not, so the client/server distinction isn't important. - if cn.tcb.IsEmpty() { - cn.tcb.Init(tcpHeader, pkt.Data().Size()) - return - } - - if reply { - cn.tcb.UpdateStateReply(tcpHeader, pkt.Data().Size()) - } else { - cn.tcb.UpdateStateOriginal(tcpHeader, pkt.Data().Size()) - } -} - -// ConnTrack tracks all connections created for NAT rules. Most users are -// expected to only call handlePacket, insertRedirectConn, and maybeInsertNoop. -// -// ConnTrack keeps all connections in a slice of buckets, each of which holds a -// linked list of tuples. This gives us some desirable properties: -// - Each bucket has its own lock, lessening lock contention. -// - The slice is large enough that lists stay short (<10 elements on average). -// Thus traversal is fast. -// - During linked list traversal we reap expired connections. This amortizes -// the cost of reaping them and makes reapUnused faster. -// -// Locks are ordered by their location in the buckets slice. That is, a -// goroutine that locks buckets[i] can only lock buckets[j] s.t. i < j. -// -// +stateify savable -type ConnTrack struct { - // seed is a one-time random value initialized at stack startup - // and is used in the calculation of hash keys for the list of buckets. - // It is immutable. - seed uint32 - - // clock provides timing used to determine conntrack reapings. - clock tcpip.Clock - // TODO(b/341946753): Restore when netstack is savable. - rand *rand.Rand `state:"nosave"` - - mu connTrackRWMutex `state:"nosave"` - // mu protects the buckets slice, but not buckets' contents. Only take - // the write lock if you are modifying the slice or saving for S/R. - // - // +checklocks:mu - buckets []bucket -} - -// +stateify savable -type bucket struct { - mu bucketRWMutex `state:"nosave"` - // +checklocks:mu - tuples tupleList -} - -// A netAndTransHeadersFunc returns the network and transport headers found -// in an ICMP payload. The transport layer's payload will not be returned. -// -// May panic if the packet does not hold the transport header. -type netAndTransHeadersFunc func(icmpPayload []byte, minTransHdrLen int) (netHdr header.Network, transHdrBytes []byte) - -func v4NetAndTransHdr(icmpPayload []byte, minTransHdrLen int) (header.Network, []byte) { - netHdr := header.IPv4(icmpPayload) - // Do not use netHdr.Payload() as we might not hold the full packet - // in the ICMP error; Payload() panics if the buffer is smaller than - // the total length specified in the IPv4 header. - transHdr := icmpPayload[netHdr.HeaderLength():] - return netHdr, transHdr[:minTransHdrLen] -} - -func v6NetAndTransHdr(icmpPayload []byte, minTransHdrLen int) (header.Network, []byte) { - netHdr := header.IPv6(icmpPayload) - // Do not use netHdr.Payload() as we might not hold the full packet - // in the ICMP error; Payload() panics if the IP payload is smaller than - // the payload length specified in the IPv6 header. - transHdr := icmpPayload[header.IPv6MinimumSize:] - return netHdr, transHdr[:minTransHdrLen] -} - -func getEmbeddedNetAndTransHeaders(pkt *PacketBuffer, netHdrLength int, getNetAndTransHdr netAndTransHeadersFunc, transProto tcpip.TransportProtocolNumber) (header.Network, header.ChecksummableTransport, bool) { - switch transProto { - case header.TCPProtocolNumber: - if netAndTransHeader, ok := pkt.Data().PullUp(netHdrLength + header.TCPMinimumSize); ok { - netHeader, transHeaderBytes := getNetAndTransHdr(netAndTransHeader, header.TCPMinimumSize) - return netHeader, header.TCP(transHeaderBytes), true - } - case header.UDPProtocolNumber: - if netAndTransHeader, ok := pkt.Data().PullUp(netHdrLength + header.UDPMinimumSize); ok { - netHeader, transHeaderBytes := getNetAndTransHdr(netAndTransHeader, header.UDPMinimumSize) - return netHeader, header.UDP(transHeaderBytes), true - } - } - return nil, nil, false -} - -func getHeaders(pkt *PacketBuffer) (netHdr header.Network, transHdr header.Transport, isICMPError bool, ok bool) { - switch pkt.TransportProtocolNumber { - case header.TCPProtocolNumber: - if tcpHeader := header.TCP(pkt.TransportHeader().Slice()); len(tcpHeader) >= header.TCPMinimumSize { - return pkt.Network(), tcpHeader, false, true - } - return nil, nil, false, false - case header.UDPProtocolNumber: - if udpHeader := header.UDP(pkt.TransportHeader().Slice()); len(udpHeader) >= header.UDPMinimumSize { - return pkt.Network(), udpHeader, false, true - } - return nil, nil, false, false - case header.ICMPv4ProtocolNumber: - icmpHeader := header.ICMPv4(pkt.TransportHeader().Slice()) - if len(icmpHeader) < header.ICMPv4MinimumSize { - return nil, nil, false, false - } - - switch icmpType := icmpHeader.Type(); icmpType { - case header.ICMPv4Echo, header.ICMPv4EchoReply: - return pkt.Network(), icmpHeader, false, true - case header.ICMPv4DstUnreachable, header.ICMPv4TimeExceeded, header.ICMPv4ParamProblem: - default: - panic(fmt.Sprintf("unexpected ICMPv4 type = %d", icmpType)) - } - - h, ok := pkt.Data().PullUp(header.IPv4MinimumSize) - if !ok { - panic(fmt.Sprintf("should have a valid IPv4 packet; only have %d bytes, want at least %d bytes", pkt.Data().Size(), header.IPv4MinimumSize)) - } - - if header.IPv4(h).HeaderLength() > header.IPv4MinimumSize { - // TODO(https://gvisor.dev/issue/6765): Handle IPv4 options. - panic("should have dropped packets with IPv4 options") - } - - if netHdr, transHdr, ok := getEmbeddedNetAndTransHeaders(pkt, header.IPv4MinimumSize, v4NetAndTransHdr, pkt.tuple.tupleID.transProto); ok { - return netHdr, transHdr, true, true - } - return nil, nil, false, false - case header.ICMPv6ProtocolNumber: - icmpHeader := header.ICMPv6(pkt.TransportHeader().Slice()) - if len(icmpHeader) < header.ICMPv6MinimumSize { - return nil, nil, false, false - } - - switch icmpType := icmpHeader.Type(); icmpType { - case header.ICMPv6EchoRequest, header.ICMPv6EchoReply: - return pkt.Network(), icmpHeader, false, true - case header.ICMPv6DstUnreachable, header.ICMPv6PacketTooBig, header.ICMPv6TimeExceeded, header.ICMPv6ParamProblem: - default: - panic(fmt.Sprintf("unexpected ICMPv6 type = %d", icmpType)) - } - - h, ok := pkt.Data().PullUp(header.IPv6MinimumSize) - if !ok { - panic(fmt.Sprintf("should have a valid IPv6 packet; only have %d bytes, want at least %d bytes", pkt.Data().Size(), header.IPv6MinimumSize)) - } - - // We do not support extension headers in ICMP errors so the next header - // in the IPv6 packet should be a tracked protocol if we reach this point. - // - // TODO(https://gvisor.dev/issue/6789): Support extension headers. - transProto := pkt.tuple.tupleID.transProto - if got := header.IPv6(h).TransportProtocol(); got != transProto { - panic(fmt.Sprintf("got TransportProtocol() = %d, want = %d", got, transProto)) - } - - if netHdr, transHdr, ok := getEmbeddedNetAndTransHeaders(pkt, header.IPv6MinimumSize, v6NetAndTransHdr, transProto); ok { - return netHdr, transHdr, true, true - } - return nil, nil, false, false - default: - panic(fmt.Sprintf("unexpected transport protocol = %d", pkt.TransportProtocolNumber)) - } -} - -func getTupleIDForRegularPacket(netHdr header.Network, netProto tcpip.NetworkProtocolNumber, transHdr header.Transport, transProto tcpip.TransportProtocolNumber) tupleID { - return tupleID{ - srcAddr: netHdr.SourceAddress(), - srcPortOrEchoRequestIdent: transHdr.SourcePort(), - dstAddr: netHdr.DestinationAddress(), - dstPortOrEchoReplyIdent: transHdr.DestinationPort(), - transProto: transProto, - netProto: netProto, - } -} - -func getTupleIDForPacketInICMPError(pkt *PacketBuffer, getNetAndTransHdr netAndTransHeadersFunc, netProto tcpip.NetworkProtocolNumber, netLen int, transProto tcpip.TransportProtocolNumber) (tupleID, bool) { - if netHdr, transHdr, ok := getEmbeddedNetAndTransHeaders(pkt, netLen, getNetAndTransHdr, transProto); ok { - return tupleID{ - srcAddr: netHdr.DestinationAddress(), - srcPortOrEchoRequestIdent: transHdr.DestinationPort(), - dstAddr: netHdr.SourceAddress(), - dstPortOrEchoReplyIdent: transHdr.SourcePort(), - transProto: transProto, - netProto: netProto, - }, true - } - - return tupleID{}, false -} - -type getTupleIDDisposition int - -const ( - getTupleIDNotOK getTupleIDDisposition = iota - getTupleIDOKAndAllowNewConn - getTupleIDOKAndDontAllowNewConn -) - -func getTupleIDForEchoPacket(pkt *PacketBuffer, ident uint16, request bool) tupleID { - netHdr := pkt.Network() - tid := tupleID{ - srcAddr: netHdr.SourceAddress(), - dstAddr: netHdr.DestinationAddress(), - transProto: pkt.TransportProtocolNumber, - netProto: pkt.NetworkProtocolNumber, - } - - if request { - tid.srcPortOrEchoRequestIdent = ident - } else { - tid.dstPortOrEchoReplyIdent = ident - } - - return tid -} - -func getTupleID(pkt *PacketBuffer) (tupleID, getTupleIDDisposition) { - switch pkt.TransportProtocolNumber { - case header.TCPProtocolNumber: - if transHeader := header.TCP(pkt.TransportHeader().Slice()); len(transHeader) >= header.TCPMinimumSize { - return getTupleIDForRegularPacket(pkt.Network(), pkt.NetworkProtocolNumber, transHeader, pkt.TransportProtocolNumber), getTupleIDOKAndAllowNewConn - } - case header.UDPProtocolNumber: - if transHeader := header.UDP(pkt.TransportHeader().Slice()); len(transHeader) >= header.UDPMinimumSize { - return getTupleIDForRegularPacket(pkt.Network(), pkt.NetworkProtocolNumber, transHeader, pkt.TransportProtocolNumber), getTupleIDOKAndAllowNewConn - } - case header.ICMPv4ProtocolNumber: - icmp := header.ICMPv4(pkt.TransportHeader().Slice()) - if len(icmp) < header.ICMPv4MinimumSize { - return tupleID{}, getTupleIDNotOK - } - - switch icmp.Type() { - case header.ICMPv4Echo: - return getTupleIDForEchoPacket(pkt, icmp.Ident(), true /* request */), getTupleIDOKAndAllowNewConn - case header.ICMPv4EchoReply: - // Do not create a new connection in response to a reply packet as only - // the first packet of a connection should create a conntrack entry but - // a reply is never the first packet sent for a connection. - return getTupleIDForEchoPacket(pkt, icmp.Ident(), false /* request */), getTupleIDOKAndDontAllowNewConn - case header.ICMPv4DstUnreachable, header.ICMPv4TimeExceeded, header.ICMPv4ParamProblem: - default: - // Unsupported ICMP type for NAT-ing. - return tupleID{}, getTupleIDNotOK - } - - h, ok := pkt.Data().PullUp(header.IPv4MinimumSize) - if !ok { - return tupleID{}, getTupleIDNotOK - } - - ipv4 := header.IPv4(h) - if ipv4.HeaderLength() > header.IPv4MinimumSize { - // TODO(https://gvisor.dev/issue/6765): Handle IPv4 options. - return tupleID{}, getTupleIDNotOK - } - - if tid, ok := getTupleIDForPacketInICMPError(pkt, v4NetAndTransHdr, header.IPv4ProtocolNumber, header.IPv4MinimumSize, ipv4.TransportProtocol()); ok { - // Do not create a new connection in response to an ICMP error. - return tid, getTupleIDOKAndDontAllowNewConn - } - case header.ICMPv6ProtocolNumber: - icmp := header.ICMPv6(pkt.TransportHeader().Slice()) - if len(icmp) < header.ICMPv6MinimumSize { - return tupleID{}, getTupleIDNotOK - } - - switch icmp.Type() { - case header.ICMPv6EchoRequest: - return getTupleIDForEchoPacket(pkt, icmp.Ident(), true /* request */), getTupleIDOKAndAllowNewConn - case header.ICMPv6EchoReply: - // Do not create a new connection in response to a reply packet as only - // the first packet of a connection should create a conntrack entry but - // a reply is never the first packet sent for a connection. - return getTupleIDForEchoPacket(pkt, icmp.Ident(), false /* request */), getTupleIDOKAndDontAllowNewConn - case header.ICMPv6DstUnreachable, header.ICMPv6PacketTooBig, header.ICMPv6TimeExceeded, header.ICMPv6ParamProblem: - default: - return tupleID{}, getTupleIDNotOK - } - - h, ok := pkt.Data().PullUp(header.IPv6MinimumSize) - if !ok { - return tupleID{}, getTupleIDNotOK - } - - // TODO(https://gvisor.dev/issue/6789): Handle extension headers. - if tid, ok := getTupleIDForPacketInICMPError(pkt, v6NetAndTransHdr, header.IPv6ProtocolNumber, header.IPv6MinimumSize, header.IPv6(h).TransportProtocol()); ok { - // Do not create a new connection in response to an ICMP error. - return tid, getTupleIDOKAndDontAllowNewConn - } - } - - return tupleID{}, getTupleIDNotOK -} - -func (ct *ConnTrack) init() { - ct.mu.Lock() - defer ct.mu.Unlock() - ct.buckets = make([]bucket, numBuckets) -} - -// getConnAndUpdate attempts to get a connection or creates one if no -// connection exists for the packet and packet's protocol is trackable. -// -// If the packet's protocol is trackable, the connection's state is updated to -// match the contents of the packet. -func (ct *ConnTrack) getConnAndUpdate(pkt *PacketBuffer, skipChecksumValidation bool) *tuple { - // Get or (maybe) create a connection. - t := func() *tuple { - var allowNewConn bool - tid, res := getTupleID(pkt) - switch res { - case getTupleIDNotOK: - return nil - case getTupleIDOKAndAllowNewConn: - allowNewConn = true - case getTupleIDOKAndDontAllowNewConn: - allowNewConn = false - default: - panic(fmt.Sprintf("unhandled %[1]T = %[1]d", res)) - } - - // Just skip bad packets. They'll be rejected later by the appropriate - // protocol package. - switch pkt.TransportProtocolNumber { - case header.TCPProtocolNumber: - _, csumValid, ok := header.TCPValid( - header.TCP(pkt.TransportHeader().Slice()), - func() uint16 { return pkt.Data().Checksum() }, - uint16(pkt.Data().Size()), - tid.srcAddr, - tid.dstAddr, - pkt.RXChecksumValidated || skipChecksumValidation) - if !csumValid || !ok { - return nil - } - case header.UDPProtocolNumber: - lengthValid, csumValid := header.UDPValid( - header.UDP(pkt.TransportHeader().Slice()), - func() uint16 { return pkt.Data().Checksum() }, - uint16(pkt.Data().Size()), - pkt.NetworkProtocolNumber, - tid.srcAddr, - tid.dstAddr, - pkt.RXChecksumValidated || skipChecksumValidation) - if !lengthValid || !csumValid { - return nil - } - } - - ct.mu.RLock() - bkt := &ct.buckets[ct.bucket(tid)] - ct.mu.RUnlock() - - now := ct.clock.NowMonotonic() - if t := bkt.connForTID(tid, now); t != nil { - return t - } - - if !allowNewConn { - return nil - } - - bkt.mu.Lock() - defer bkt.mu.Unlock() - - // Make sure a connection wasn't added between when we last checked the - // bucket and acquired the bucket's write lock. - if t := bkt.connForTIDRLocked(tid, now); t != nil { - return t - } - - // This is the first packet we're seeing for the connection. Create an entry - // for this new connection. - conn := &conn{ - ct: ct, - original: tuple{tupleID: tid}, - reply: tuple{tupleID: tid.reply(), reply: true}, - lastUsed: now, - } - conn.original.conn = conn - conn.reply.conn = conn - - // For now, we only map an entry for the packet's original tuple as NAT may be - // performed on this connection. Until the packet goes through all the hooks - // and its final address/port is known, we cannot know what the response - // packet's addresses/ports will look like. - // - // This is okay because the destination cannot send its response until it - // receives the packet; the packet will only be received once all the hooks - // have been performed. - // - // See (*conn).finalize. - bkt.tuples.PushFront(&conn.original) - return &conn.original - }() - if t != nil { - t.conn.update(pkt, t.reply) - } - return t -} - -func (ct *ConnTrack) connForTID(tid tupleID) *tuple { - ct.mu.RLock() - bkt := &ct.buckets[ct.bucket(tid)] - ct.mu.RUnlock() - - return bkt.connForTID(tid, ct.clock.NowMonotonic()) -} - -func (bkt *bucket) connForTID(tid tupleID, now tcpip.MonotonicTime) *tuple { - bkt.mu.RLock() - defer bkt.mu.RUnlock() - return bkt.connForTIDRLocked(tid, now) -} - -// +checklocksread:bkt.mu -func (bkt *bucket) connForTIDRLocked(tid tupleID, now tcpip.MonotonicTime) *tuple { - for other := bkt.tuples.Front(); other != nil; other = other.Next() { - if tid == other.tupleID && !other.conn.timedOut(now) { - return other - } - } - return nil -} - -func (ct *ConnTrack) finalize(cn *conn) finalizeResult { - ct.mu.RLock() - buckets := ct.buckets - ct.mu.RUnlock() - - { - tid := cn.reply.tupleID - id := ct.bucketWithTableLength(tid, len(buckets)) - - bkt := &buckets[id] - bkt.mu.Lock() - t := bkt.connForTIDRLocked(tid, ct.clock.NowMonotonic()) - if t == nil { - bkt.tuples.PushFront(&cn.reply) - bkt.mu.Unlock() - return finalizeResultSuccess - } - bkt.mu.Unlock() - - if t.conn == cn { - // We already have an entry for the reply tuple. - // - // This can occur when the source address/port is the same as the - // destination address/port. In this scenario, tid == tid.reply(). - return finalizeResultSuccess - } - } - - // Another connection for the reply already exists. Remove the original and - // let the caller know we failed. - // - // TODO(https://gvisor.dev/issue/6850): Investigate handling this clash - // better. - - tid := cn.original.tupleID - id := ct.bucketWithTableLength(tid, len(buckets)) - bkt := &buckets[id] - bkt.mu.Lock() - defer bkt.mu.Unlock() - bkt.tuples.Remove(&cn.original) - return finalizeResultConflict -} - -func (cn *conn) getFinalizeResult() finalizeResult { - return finalizeResult(cn.finalizeResult.Load()) -} - -// finalize attempts to finalize the connection and returns true iff the -// connection was successfully finalized. -// -// If the connection failed to finalize, the caller should drop the packet -// associated with the connection. -// -// If multiple goroutines attempt to finalize at the same time, only one -// goroutine will perform the work to finalize the connection, but all -// goroutines will block until the finalizing goroutine finishes finalizing. -func (cn *conn) finalize() bool { - cn.finalizeOnce.Do(func() { - cn.finalizeResult.Store(uint32(cn.ct.finalize(cn))) - }) - - switch res := cn.getFinalizeResult(); res { - case finalizeResultSuccess: - return true - case finalizeResultConflict: - return false - default: - panic(fmt.Sprintf("unhandled result = %d", res)) - } -} - -// If NAT has not been configured for this connection, either mark the -// connection as configured for "no-op NAT", in the case of DNAT, or, in the -// case of SNAT, perform source port remapping so that source ports used by -// locally-generated traffic do not conflict with ports occupied by existing NAT -// bindings. -// -// Note that in the typical case this is also a no-op, because `snatAction` -// will do nothing if the original tuple is already unique. -func (cn *conn) maybePerformNoopNAT(pkt *PacketBuffer, hook Hook, r *Route, dnat bool) { - cn.mu.Lock() - var manip *manipType - if dnat { - manip = &cn.destinationManip - } else { - manip = &cn.sourceManip - } - if *manip != manipNotPerformed { - cn.mu.Unlock() - _ = cn.handlePacket(pkt, hook, r) - return - } - if dnat { - *manip = manipPerformedNoop - cn.mu.Unlock() - _ = cn.handlePacket(pkt, hook, r) - return - } - cn.mu.Unlock() - - // At this point, we know that NAT has not yet been performed on this - // connection, and the DNAT case has been handled with a no-op. For SNAT, we - // simply perform source port remapping to ensure that source ports for - // locally generated traffic do not clash with ports used by existing NAT - // bindings. - _, _ = snatAction(pkt, hook, r, 0, tcpip.Address{}, true /* changePort */, false /* changeAddress */) -} - -type portOrIdentRange struct { - start uint16 - size uint32 -} - -// performNAT setups up the connection for the specified NAT and rewrites the -// packet. -// -// If NAT has already been performed on the connection, then the packet will -// be rewritten with the NAT performed on the connection, ignoring the passed -// address and port range. -// -// Generally, only the first packet of a connection reaches this method; other -// packets will be manipulated without needing to modify the connection. -func (cn *conn) performNAT(pkt *PacketBuffer, hook Hook, r *Route, portsOrIdents portOrIdentRange, natAddress tcpip.Address, dnat, changePort, changeAddress bool) { - lastPortOrIdent := func() uint16 { - lastPortOrIdent := uint32(portsOrIdents.start) + portsOrIdents.size - 1 - if lastPortOrIdent > math.MaxUint16 { - panic(fmt.Sprintf("got lastPortOrIdent = %d, want <= MaxUint16(=%d); portsOrIdents=%#v", lastPortOrIdent, math.MaxUint16, portsOrIdents)) - } - return uint16(lastPortOrIdent) - }() - - // Make sure the packet is re-written after performing NAT. - defer func() { - // handlePacket returns true if the packet may skip the NAT table as the - // connection is already NATed, but if we reach this point we must be in the - // NAT table, so the return value is useless for us. - _ = cn.handlePacket(pkt, hook, r) - }() - - cn.mu.Lock() - defer cn.mu.Unlock() - - var manip *manipType - var address *tcpip.Address - var portOrIdent *uint16 - if dnat { - manip = &cn.destinationManip - address = &cn.reply.tupleID.srcAddr - portOrIdent = &cn.reply.tupleID.srcPortOrEchoRequestIdent - } else { - manip = &cn.sourceManip - address = &cn.reply.tupleID.dstAddr - portOrIdent = &cn.reply.tupleID.dstPortOrEchoReplyIdent - } - - if *manip != manipNotPerformed { - return - } - *manip = manipPerformed - if changeAddress { - *address = natAddress - } - - // Everything below here is port-fiddling. - if !changePort { - return - } - - // Does the current port/ident fit in the range? - if portsOrIdents.start <= *portOrIdent && *portOrIdent <= lastPortOrIdent { - // Yes, is the current reply tuple unique? - // - // Or, does the reply tuple refer to the same connection as the current one that - // we are NATing? This would apply, for example, to a self-connected socket, - // where the original and reply tuples are identical. - other := cn.ct.connForTID(cn.reply.tupleID) - if other == nil || other.conn == cn { - // Yes! No need to change the port. - return - } - } - - // Try our best to find a port/ident that results in a unique reply tuple. - // - // We limit the number of attempts to find a unique tuple to not waste a lot - // of time looking for a unique tuple. - // - // Matches linux behaviour introduced in - // https://github.com/torvalds/linux/commit/a504b703bb1da526a01593da0e4be2af9d9f5fa8. - const maxAttemptsForInitialRound uint32 = 128 - const minAttemptsToContinue = 16 - - allowedInitialAttempts := maxAttemptsForInitialRound - if allowedInitialAttempts > portsOrIdents.size { - allowedInitialAttempts = portsOrIdents.size - } - - for maxAttempts := allowedInitialAttempts; ; maxAttempts /= 2 { - // Start reach round with a random initial port/ident offset. - randOffset := cn.ct.rand.Uint32() - - for i := uint32(0); i < maxAttempts; i++ { - newPortOrIdentU32 := uint32(portsOrIdents.start) + (randOffset+i)%portsOrIdents.size - if newPortOrIdentU32 > math.MaxUint16 { - panic(fmt.Sprintf("got newPortOrIdentU32 = %d, want <= MaxUint16(=%d); portsOrIdents=%#v, randOffset=%d", newPortOrIdentU32, math.MaxUint16, portsOrIdents, randOffset)) - } - - *portOrIdent = uint16(newPortOrIdentU32) - - if other := cn.ct.connForTID(cn.reply.tupleID); other == nil { - // We found a unique tuple! - return - } - } - - if maxAttempts == portsOrIdents.size { - // We already tried all the ports/idents in the range so no need to keep - // trying. - return - } - - if maxAttempts < minAttemptsToContinue { - return - } - } - - // We did not find a unique tuple, use the last used port anyways. - // TODO(https://gvisor.dev/issue/6850): Handle not finding a unique tuple - // better (e.g. remove the connection and drop the packet). -} - -// handlePacket attempts to handle a packet and perform NAT if the connection -// has had NAT performed on it. -// -// Returns true if the packet can skip the NAT table. -func (cn *conn) handlePacket(pkt *PacketBuffer, hook Hook, rt *Route) bool { - netHdr, transHdr, isICMPError, ok := getHeaders(pkt) - if !ok { - return false - } - - fullChecksum := false - updatePseudoHeader := false - natDone := &pkt.snatDone - dnat := false - switch hook { - case Prerouting: - // Packet came from outside the stack so it must have a checksum set - // already. - fullChecksum = true - updatePseudoHeader = true - - natDone = &pkt.dnatDone - dnat = true - case Input: - case Forward: - panic("should not handle packet in the forwarding hook") - case Output: - natDone = &pkt.dnatDone - dnat = true - fallthrough - case Postrouting: - if pkt.TransportProtocolNumber == header.TCPProtocolNumber && pkt.GSOOptions.Type != GSONone && pkt.GSOOptions.NeedsCsum { - updatePseudoHeader = true - } else if rt.RequiresTXTransportChecksum() { - fullChecksum = true - updatePseudoHeader = true - } - default: - panic(fmt.Sprintf("unrecognized hook = %d", hook)) - } - - if *natDone { - panic(fmt.Sprintf("packet already had NAT(dnat=%t) performed at hook=%s; pkt=%#v", dnat, hook, pkt)) - } - - // TODO(gvisor.dev/issue/5748): TCP checksums on inbound packets should be - // validated if checksum offloading is off. It may require IP defrag if the - // packets are fragmented. - - reply := pkt.tuple.reply - - tid, manip := func() (tupleID, manipType) { - cn.mu.RLock() - defer cn.mu.RUnlock() - - if reply { - tid := cn.original.tupleID - - if dnat { - return tid, cn.sourceManip - } - return tid, cn.destinationManip - } - - tid := cn.reply.tupleID - if dnat { - return tid, cn.destinationManip - } - return tid, cn.sourceManip - }() - switch manip { - case manipNotPerformed: - return false - case manipPerformedNoop: - *natDone = true - return true - case manipPerformed: - default: - panic(fmt.Sprintf("unhandled manip = %d", manip)) - } - - newPort := tid.dstPortOrEchoReplyIdent - newAddr := tid.dstAddr - if dnat { - newPort = tid.srcPortOrEchoRequestIdent - newAddr = tid.srcAddr - } - - rewritePacket( - netHdr, - transHdr, - !dnat != isICMPError, - fullChecksum, - updatePseudoHeader, - newPort, - newAddr, - ) - - *natDone = true - - if !isICMPError { - return true - } - - // We performed NAT on (erroneous) packet that triggered an ICMP response, but - // not the ICMP packet itself. - switch pkt.TransportProtocolNumber { - case header.ICMPv4ProtocolNumber: - icmp := header.ICMPv4(pkt.TransportHeader().Slice()) - // TODO(https://gvisor.dev/issue/6788): Incrementally update ICMP checksum. - icmp.SetChecksum(0) - icmp.SetChecksum(header.ICMPv4Checksum(icmp, pkt.Data().Checksum())) - - network := header.IPv4(pkt.NetworkHeader().Slice()) - if dnat { - network.SetDestinationAddressWithChecksumUpdate(tid.srcAddr) - } else { - network.SetSourceAddressWithChecksumUpdate(tid.dstAddr) - } - case header.ICMPv6ProtocolNumber: - network := header.IPv6(pkt.NetworkHeader().Slice()) - srcAddr := network.SourceAddress() - dstAddr := network.DestinationAddress() - if dnat { - dstAddr = tid.srcAddr - } else { - srcAddr = tid.dstAddr - } - - icmp := header.ICMPv6(pkt.TransportHeader().Slice()) - // TODO(https://gvisor.dev/issue/6788): Incrementally update ICMP checksum. - icmp.SetChecksum(0) - payload := pkt.Data() - icmp.SetChecksum(header.ICMPv6Checksum(header.ICMPv6ChecksumParams{ - Header: icmp, - Src: srcAddr, - Dst: dstAddr, - PayloadCsum: payload.Checksum(), - PayloadLen: payload.Size(), - })) - - if dnat { - network.SetDestinationAddress(dstAddr) - } else { - network.SetSourceAddress(srcAddr) - } - } - - return true -} - -// bucket gets the conntrack bucket for a tupleID. -// +checklocksread:ct.mu -func (ct *ConnTrack) bucket(id tupleID) int { - return ct.bucketWithTableLength(id, len(ct.buckets)) -} - -func (ct *ConnTrack) bucketWithTableLength(id tupleID, tableLength int) int { - h := jenkins.Sum32(ct.seed) - h.Write(id.srcAddr.AsSlice()) - h.Write(id.dstAddr.AsSlice()) - shortBuf := make([]byte, 2) - binary.LittleEndian.PutUint16(shortBuf, id.srcPortOrEchoRequestIdent) - h.Write([]byte(shortBuf)) - binary.LittleEndian.PutUint16(shortBuf, id.dstPortOrEchoReplyIdent) - h.Write([]byte(shortBuf)) - binary.LittleEndian.PutUint16(shortBuf, uint16(id.transProto)) - h.Write([]byte(shortBuf)) - binary.LittleEndian.PutUint16(shortBuf, uint16(id.netProto)) - h.Write([]byte(shortBuf)) - return int(h.Sum32()) % tableLength -} - -// reapUnused deletes timed out entries from the conntrack map. The rules for -// reaping are: -// - Each call to reapUnused traverses a fraction of the conntrack table. -// Specifically, it traverses len(ct.buckets)/fractionPerReaping. -// - After reaping, reapUnused decides when it should next run based on the -// ratio of expired connections to examined connections. If the ratio is -// greater than maxExpiredPct, it schedules the next run quickly. Otherwise it -// slightly increases the interval between runs. -// - maxFullTraversal caps the time it takes to traverse the entire table. -// -// reapUnused returns the next bucket that should be checked and the time after -// which it should be called again. -func (ct *ConnTrack) reapUnused(start int, prevInterval time.Duration) (int, time.Duration) { - const fractionPerReaping = 128 - const maxExpiredPct = 50 - const maxFullTraversal = 60 * time.Second - const minInterval = 10 * time.Millisecond - const maxInterval = maxFullTraversal / fractionPerReaping - - now := ct.clock.NowMonotonic() - checked := 0 - expired := 0 - var idx int - ct.mu.RLock() - defer ct.mu.RUnlock() - for i := 0; i < len(ct.buckets)/fractionPerReaping; i++ { - idx = (i + start) % len(ct.buckets) - bkt := &ct.buckets[idx] - bkt.mu.Lock() - for tuple := bkt.tuples.Front(); tuple != nil; { - // reapTupleLocked updates tuple's next pointer so we grab it here. - nextTuple := tuple.Next() - - checked++ - if ct.reapTupleLocked(tuple, idx, bkt, now) { - expired++ - } - - tuple = nextTuple - } - bkt.mu.Unlock() - } - // We already checked buckets[idx]. - idx++ - - // If half or more of the connections are expired, the table has gotten - // stale. Reschedule quickly. - expiredPct := 0 - if checked != 0 { - expiredPct = expired * 100 / checked - } - if expiredPct > maxExpiredPct { - return idx, minInterval - } - if interval := prevInterval + minInterval; interval <= maxInterval { - // Increment the interval between runs. - return idx, interval - } - // We've hit the maximum interval. - return idx, maxInterval -} - -// reapTupleLocked tries to remove tuple and its reply from the table. It -// returns whether the tuple's connection has timed out. -// -// Precondition: ct.mu is read locked and bkt.mu is write locked. -// +checklocksread:ct.mu -// +checklocks:bkt.mu -func (ct *ConnTrack) reapTupleLocked(reapingTuple *tuple, bktID int, bkt *bucket, now tcpip.MonotonicTime) bool { - if !reapingTuple.conn.timedOut(now) { - return false - } - - var otherTuple *tuple - if reapingTuple.reply { - otherTuple = &reapingTuple.conn.original - } else { - otherTuple = &reapingTuple.conn.reply - } - - otherTupleBktID := ct.bucket(otherTuple.tupleID) - replyTupleInserted := reapingTuple.conn.getFinalizeResult() == finalizeResultSuccess - - // To maintain lock order, we can only reap both tuples if the tuple for the - // other direction appears later in the table. - if bktID > otherTupleBktID && replyTupleInserted { - return true - } - - bkt.tuples.Remove(reapingTuple) - - if !replyTupleInserted { - // The other tuple is the reply which has not yet been inserted. - return true - } - - // Reap the other connection. - if bktID == otherTupleBktID { - // Don't re-lock if both tuples are in the same bucket. - bkt.tuples.Remove(otherTuple) - } else { - otherTupleBkt := &ct.buckets[otherTupleBktID] - otherTupleBkt.mu.NestedLock(bucketLockOthertuple) - otherTupleBkt.tuples.Remove(otherTuple) - otherTupleBkt.mu.NestedUnlock(bucketLockOthertuple) - } - - return true -} - -func (ct *ConnTrack) originalDst(epID TransportEndpointID, netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber) (tcpip.Address, uint16, tcpip.Error) { - // Lookup the connection. The reply's original destination - // describes the original address. - tid := tupleID{ - srcAddr: epID.LocalAddress, - srcPortOrEchoRequestIdent: epID.LocalPort, - dstAddr: epID.RemoteAddress, - dstPortOrEchoReplyIdent: epID.RemotePort, - transProto: transProto, - netProto: netProto, - } - t := ct.connForTID(tid) - if t == nil { - // Not a tracked connection. - return tcpip.Address{}, 0, &tcpip.ErrNotConnected{} - } - - t.conn.mu.RLock() - defer t.conn.mu.RUnlock() - if t.conn.destinationManip == manipNotPerformed { - // Unmanipulated destination. - return tcpip.Address{}, 0, &tcpip.ErrInvalidOptionValue{} - } - - id := t.conn.original.tupleID - return id.dstAddr, id.dstPortOrEchoReplyIdent, nil -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/endpoints_by_nic_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/endpoints_by_nic_mutex.go deleted file mode 100644 index 60642030f4..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/endpoints_by_nic_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type endpointsByNICRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var endpointsByNIClockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type endpointsByNIClockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *endpointsByNICRWMutex) Lock() { - locking.AddGLock(endpointsByNICprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *endpointsByNICRWMutex) NestedLock(i endpointsByNIClockNameIndex) { - locking.AddGLock(endpointsByNICprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *endpointsByNICRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(endpointsByNICprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *endpointsByNICRWMutex) NestedUnlock(i endpointsByNIClockNameIndex) { - m.mu.Unlock() - locking.DelGLock(endpointsByNICprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *endpointsByNICRWMutex) RLock() { - locking.AddGLock(endpointsByNICprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *endpointsByNICRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(endpointsByNICprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *endpointsByNICRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *endpointsByNICRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *endpointsByNICRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var endpointsByNICprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func endpointsByNICinitLockNames() {} - -func init() { - endpointsByNICinitLockNames() - endpointsByNICprefixIndex = locking.NewMutexClass(reflect.TypeOf(endpointsByNICRWMutex{}), endpointsByNIClockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/headertype_string.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/headertype_string.go deleted file mode 100644 index cd80de0cd3..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/headertype_string.go +++ /dev/null @@ -1,40 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at // -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Code generated by "stringer -type headerType ."; DO NOT EDIT. - -package stack - -import "strconv" - -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[virtioNetHeader-0] - _ = x[linkHeader-1] - _ = x[networkHeader-2] - _ = x[transportHeader-3] - _ = x[numHeaderType-4] -} - -const _headerType_name = "virtioNetHeaderlinkHeadernetworkHeadertransportHeadernumHeaderType" - -var _headerType_index = [...]uint8{0, 10, 23, 38, 51} - -func (i headerType) String() string { - if i < 0 || i >= headerType(len(_headerType_index)-1) { - return "headerType(" + strconv.FormatInt(int64(i), 10) + ")" - } - return _headerType_name[_headerType_index[i]:_headerType_index[i+1]] -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/hook_string.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/hook_string.go deleted file mode 100644 index 3dc8a7b023..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/hook_string.go +++ /dev/null @@ -1,41 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at // -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Code generated by "stringer -type Hook ."; DO NOT EDIT. - -package stack - -import "strconv" - -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[Prerouting-0] - _ = x[Input-1] - _ = x[Forward-2] - _ = x[Output-3] - _ = x[Postrouting-4] - _ = x[NumHooks-5] -} - -const _Hook_name = "PreroutingInputForwardOutputPostroutingNumHooks" - -var _Hook_index = [...]uint8{0, 10, 15, 22, 28, 39, 47} - -func (i Hook) String() string { - if i >= Hook(len(_Hook_index)-1) { - return "Hook(" + strconv.FormatInt(int64(i), 10) + ")" - } - return _Hook_name[_Hook_index[i]:_Hook_index[i+1]] -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/icmp_rate_limit.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/icmp_rate_limit.go deleted file mode 100644 index 560543db44..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/icmp_rate_limit.go +++ /dev/null @@ -1,75 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "golang.org/x/time/rate" - "gvisor.dev/gvisor/pkg/tcpip" -) - -const ( - // icmpLimit is the default maximum number of ICMP messages permitted by this - // rate limiter. - icmpLimit = 1000 - - // icmpBurst is the default number of ICMP messages that can be sent in a single - // burst. - icmpBurst = 50 -) - -// ICMPRateLimiter is a global rate limiter that controls the generation of -// ICMP messages generated by the stack. -// -// +stateify savable -type ICMPRateLimiter struct { - // TODO(b/341946753): Restore when netstack is savable. - limiter *rate.Limiter `state:"nosave"` - clock tcpip.Clock -} - -// NewICMPRateLimiter returns a global rate limiter for controlling the rate -// at which ICMP messages are generated by the stack. The returned limiter -// does not apply limits to any ICMP types by default. -func NewICMPRateLimiter(clock tcpip.Clock) *ICMPRateLimiter { - return &ICMPRateLimiter{ - clock: clock, - limiter: rate.NewLimiter(icmpLimit, icmpBurst), - } -} - -// SetLimit sets a new Limit for the limiter. -func (l *ICMPRateLimiter) SetLimit(limit rate.Limit) { - l.limiter.SetLimitAt(l.clock.Now(), limit) -} - -// Limit returns the maximum overall event rate. -func (l *ICMPRateLimiter) Limit() rate.Limit { - return l.limiter.Limit() -} - -// SetBurst sets a new burst size for the limiter. -func (l *ICMPRateLimiter) SetBurst(burst int) { - l.limiter.SetBurstAt(l.clock.Now(), burst) -} - -// Burst returns the maximum burst size. -func (l *ICMPRateLimiter) Burst() int { - return l.limiter.Burst() -} - -// Allow reports whether one ICMP message may be sent now. -func (l *ICMPRateLimiter) Allow() bool { - return l.limiter.AllowN(l.clock.Now(), 1) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/iptables.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/iptables.go deleted file mode 100644 index a28ea90ccc..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/iptables.go +++ /dev/null @@ -1,717 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "context" - "fmt" - "math/rand" - "reflect" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" -) - -// TableID identifies a specific table. -type TableID int - -// Each value identifies a specific table. -const ( - NATID TableID = iota - MangleID - FilterID - NumTables -) - -// HookUnset indicates that there is no hook set for an entrypoint or -// underflow. -const HookUnset = -1 - -// reaperDelay is how long to wait before starting to reap connections. -const reaperDelay = 5 * time.Second - -// DefaultTables returns a default set of tables. Each chain is set to accept -// all packets. -func DefaultTables(clock tcpip.Clock, rand *rand.Rand) *IPTables { - return &IPTables{ - v4Tables: [NumTables]Table{ - NATID: { - Rules: []Rule{ - {Filter: EmptyFilter4(), Target: &AcceptTarget{NetworkProtocol: header.IPv4ProtocolNumber}}, - {Filter: EmptyFilter4(), Target: &AcceptTarget{NetworkProtocol: header.IPv4ProtocolNumber}}, - {Filter: EmptyFilter4(), Target: &AcceptTarget{NetworkProtocol: header.IPv4ProtocolNumber}}, - {Filter: EmptyFilter4(), Target: &AcceptTarget{NetworkProtocol: header.IPv4ProtocolNumber}}, - {Filter: EmptyFilter4(), Target: &ErrorTarget{NetworkProtocol: header.IPv4ProtocolNumber}}, - }, - BuiltinChains: [NumHooks]int{ - Prerouting: 0, - Input: 1, - Forward: HookUnset, - Output: 2, - Postrouting: 3, - }, - Underflows: [NumHooks]int{ - Prerouting: 0, - Input: 1, - Forward: HookUnset, - Output: 2, - Postrouting: 3, - }, - }, - MangleID: { - Rules: []Rule{ - {Filter: EmptyFilter4(), Target: &AcceptTarget{NetworkProtocol: header.IPv4ProtocolNumber}}, - {Filter: EmptyFilter4(), Target: &AcceptTarget{NetworkProtocol: header.IPv4ProtocolNumber}}, - {Filter: EmptyFilter4(), Target: &ErrorTarget{NetworkProtocol: header.IPv4ProtocolNumber}}, - }, - BuiltinChains: [NumHooks]int{ - Prerouting: 0, - Output: 1, - }, - Underflows: [NumHooks]int{ - Prerouting: 0, - Input: HookUnset, - Forward: HookUnset, - Output: 1, - Postrouting: HookUnset, - }, - }, - FilterID: { - Rules: []Rule{ - {Filter: EmptyFilter4(), Target: &AcceptTarget{NetworkProtocol: header.IPv4ProtocolNumber}}, - {Filter: EmptyFilter4(), Target: &AcceptTarget{NetworkProtocol: header.IPv4ProtocolNumber}}, - {Filter: EmptyFilter4(), Target: &AcceptTarget{NetworkProtocol: header.IPv4ProtocolNumber}}, - {Filter: EmptyFilter4(), Target: &ErrorTarget{NetworkProtocol: header.IPv4ProtocolNumber}}, - }, - BuiltinChains: [NumHooks]int{ - Prerouting: HookUnset, - Input: 0, - Forward: 1, - Output: 2, - Postrouting: HookUnset, - }, - Underflows: [NumHooks]int{ - Prerouting: HookUnset, - Input: 0, - Forward: 1, - Output: 2, - Postrouting: HookUnset, - }, - }, - }, - v6Tables: [NumTables]Table{ - NATID: { - Rules: []Rule{ - {Filter: EmptyFilter6(), Target: &AcceptTarget{NetworkProtocol: header.IPv6ProtocolNumber}}, - {Filter: EmptyFilter6(), Target: &AcceptTarget{NetworkProtocol: header.IPv6ProtocolNumber}}, - {Filter: EmptyFilter6(), Target: &AcceptTarget{NetworkProtocol: header.IPv6ProtocolNumber}}, - {Filter: EmptyFilter6(), Target: &AcceptTarget{NetworkProtocol: header.IPv6ProtocolNumber}}, - {Filter: EmptyFilter6(), Target: &ErrorTarget{NetworkProtocol: header.IPv6ProtocolNumber}}, - }, - BuiltinChains: [NumHooks]int{ - Prerouting: 0, - Input: 1, - Forward: HookUnset, - Output: 2, - Postrouting: 3, - }, - Underflows: [NumHooks]int{ - Prerouting: 0, - Input: 1, - Forward: HookUnset, - Output: 2, - Postrouting: 3, - }, - }, - MangleID: { - Rules: []Rule{ - {Filter: EmptyFilter6(), Target: &AcceptTarget{NetworkProtocol: header.IPv6ProtocolNumber}}, - {Filter: EmptyFilter6(), Target: &AcceptTarget{NetworkProtocol: header.IPv6ProtocolNumber}}, - {Filter: EmptyFilter6(), Target: &ErrorTarget{NetworkProtocol: header.IPv6ProtocolNumber}}, - }, - BuiltinChains: [NumHooks]int{ - Prerouting: 0, - Output: 1, - }, - Underflows: [NumHooks]int{ - Prerouting: 0, - Input: HookUnset, - Forward: HookUnset, - Output: 1, - Postrouting: HookUnset, - }, - }, - FilterID: { - Rules: []Rule{ - {Filter: EmptyFilter6(), Target: &AcceptTarget{NetworkProtocol: header.IPv6ProtocolNumber}}, - {Filter: EmptyFilter6(), Target: &AcceptTarget{NetworkProtocol: header.IPv6ProtocolNumber}}, - {Filter: EmptyFilter6(), Target: &AcceptTarget{NetworkProtocol: header.IPv6ProtocolNumber}}, - {Filter: EmptyFilter6(), Target: &ErrorTarget{NetworkProtocol: header.IPv6ProtocolNumber}}, - }, - BuiltinChains: [NumHooks]int{ - Prerouting: HookUnset, - Input: 0, - Forward: 1, - Output: 2, - Postrouting: HookUnset, - }, - Underflows: [NumHooks]int{ - Prerouting: HookUnset, - Input: 0, - Forward: 1, - Output: 2, - Postrouting: HookUnset, - }, - }, - }, - connections: ConnTrack{ - seed: rand.Uint32(), - clock: clock, - rand: rand, - }, - } -} - -// EmptyFilterTable returns a Table with no rules and the filter table chains -// mapped to HookUnset. -func EmptyFilterTable() Table { - return Table{ - Rules: []Rule{}, - BuiltinChains: [NumHooks]int{ - Prerouting: HookUnset, - Postrouting: HookUnset, - }, - Underflows: [NumHooks]int{ - Prerouting: HookUnset, - Postrouting: HookUnset, - }, - } -} - -// EmptyNATTable returns a Table with no rules and the filter table chains -// mapped to HookUnset. -func EmptyNATTable() Table { - return Table{ - Rules: []Rule{}, - BuiltinChains: [NumHooks]int{ - Forward: HookUnset, - }, - Underflows: [NumHooks]int{ - Forward: HookUnset, - }, - } -} - -// GetTable returns a table with the given id and IP version. It panics when an -// invalid id is provided. -func (it *IPTables) GetTable(id TableID, ipv6 bool) Table { - it.mu.RLock() - defer it.mu.RUnlock() - return it.getTableRLocked(id, ipv6) -} - -// +checklocksread:it.mu -func (it *IPTables) getTableRLocked(id TableID, ipv6 bool) Table { - if ipv6 { - return it.v6Tables[id] - } - return it.v4Tables[id] -} - -// ReplaceTable replaces or inserts table by name. It panics when an invalid id -// is provided. -func (it *IPTables) ReplaceTable(id TableID, table Table, ipv6 bool) { - it.replaceTable(id, table, ipv6, false /* force */) -} - -// ForceReplaceTable replaces or inserts table by name. It panics when an invalid id -// is provided. It enables iptables even when the inserted table is all -// conditionless ACCEPT, skipping our optimization that disables iptables until -// they're modified. -func (it *IPTables) ForceReplaceTable(id TableID, table Table, ipv6 bool) { - it.replaceTable(id, table, ipv6, true /* force */) -} - -func (it *IPTables) replaceTable(id TableID, table Table, ipv6, force bool) { - it.mu.Lock() - defer it.mu.Unlock() - - // If iptables is being enabled, initialize the conntrack table and - // reaper. - if !it.modified { - // Don't do anything if the table is identical. - if ((ipv6 && reflect.DeepEqual(table, it.v6Tables[id])) || (!ipv6 && reflect.DeepEqual(table, it.v4Tables[id]))) && !force { - return - } - - it.connections.init() - it.startReaper(reaperDelay) - } - it.modified = true - if ipv6 { - it.v6Tables[id] = table - } else { - it.v4Tables[id] = table - } -} - -// A chainVerdict is what a table decides should be done with a packet. -type chainVerdict int - -const ( - // chainAccept indicates the packet should continue through netstack. - chainAccept chainVerdict = iota - - // chainDrop indicates the packet should be dropped. - chainDrop - - // chainReturn indicates the packet should return to the calling chain - // or the underflow rule of a builtin chain. - chainReturn -) - -type checkTable struct { - fn checkTableFn - tableID TableID - table Table -} - -// shouldSkipOrPopulateTables returns true iff IPTables should be skipped. -// -// If IPTables should not be skipped, tables will be updated with the -// specified table. -// -// This is called in the hot path even when iptables are disabled, so we ensure -// it does not allocate. We check recursively for heap allocations, but not for: -// - Stack splitting, which can allocate. -// - Calls to interfaces, which can allocate. -// - Calls to dynamic functions, which can allocate. -// -// +checkescape:hard -func (it *IPTables) shouldSkipOrPopulateTables(tables []checkTable, pkt *PacketBuffer) bool { - switch pkt.NetworkProtocolNumber { - case header.IPv4ProtocolNumber, header.IPv6ProtocolNumber: - default: - // IPTables only supports IPv4/IPv6. - return true - } - - it.mu.RLock() - defer it.mu.RUnlock() - - if !it.modified { - // Many users never configure iptables. Spare them the cost of rule - // traversal if rules have never been set. - return true - } - - for i := range tables { - table := &tables[i] - table.table = it.getTableRLocked(table.tableID, pkt.NetworkProtocolNumber == header.IPv6ProtocolNumber) - } - return false -} - -// CheckPrerouting performs the prerouting hook on the packet. -// -// Returns true iff the packet may continue traversing the stack; the packet -// must be dropped if false is returned. -// -// Precondition: The packet's network and transport header must be set. -// -// This is called in the hot path even when iptables are disabled, so we ensure -// that it does not allocate. Note that called functions (e.g. -// getConnAndUpdate) can allocate. -// TODO(b/233951539): checkescape fails on arm sometimes. Fix and re-add. -func (it *IPTables) CheckPrerouting(pkt *PacketBuffer, addressEP AddressableEndpoint, inNicName string) bool { - tables := [...]checkTable{ - { - fn: check, - tableID: MangleID, - }, - { - fn: checkNAT, - tableID: NATID, - }, - } - - if it.shouldSkipOrPopulateTables(tables[:], pkt) { - return true - } - - pkt.tuple = it.connections.getConnAndUpdate(pkt, false /* skipChecksumValidation */) - - for _, table := range tables { - if !table.fn(it, table.table, Prerouting, pkt, nil /* route */, addressEP, inNicName, "" /* outNicName */) { - return false - } - } - - return true -} - -// CheckInput performs the input hook on the packet. -// -// Returns true iff the packet may continue traversing the stack; the packet -// must be dropped if false is returned. -// -// Precondition: The packet's network and transport header must be set. -// -// This is called in the hot path even when iptables are disabled, so we ensure -// that it does not allocate. Note that called functions (e.g. -// getConnAndUpdate) can allocate. -// TODO(b/233951539): checkescape fails on arm sometimes. Fix and re-add. -func (it *IPTables) CheckInput(pkt *PacketBuffer, inNicName string) bool { - tables := [...]checkTable{ - { - fn: checkNAT, - tableID: NATID, - }, - { - fn: check, - tableID: FilterID, - }, - } - - if it.shouldSkipOrPopulateTables(tables[:], pkt) { - return true - } - - for _, table := range tables { - if !table.fn(it, table.table, Input, pkt, nil /* route */, nil /* addressEP */, inNicName, "" /* outNicName */) { - return false - } - } - - if t := pkt.tuple; t != nil { - pkt.tuple = nil - return t.conn.finalize() - } - return true -} - -// CheckForward performs the forward hook on the packet. -// -// Returns true iff the packet may continue traversing the stack; the packet -// must be dropped if false is returned. -// -// Precondition: The packet's network and transport header must be set. -// -// This is called in the hot path even when iptables are disabled, so we ensure -// that it does not allocate. Note that called functions (e.g. -// getConnAndUpdate) can allocate. -// TODO(b/233951539): checkescape fails on arm sometimes. Fix and re-add. -func (it *IPTables) CheckForward(pkt *PacketBuffer, inNicName, outNicName string) bool { - tables := [...]checkTable{ - { - fn: check, - tableID: FilterID, - }, - } - - if it.shouldSkipOrPopulateTables(tables[:], pkt) { - return true - } - - for _, table := range tables { - if !table.fn(it, table.table, Forward, pkt, nil /* route */, nil /* addressEP */, inNicName, outNicName) { - return false - } - } - - return true -} - -// CheckOutput performs the output hook on the packet. -// -// Returns true iff the packet may continue traversing the stack; the packet -// must be dropped if false is returned. -// -// Precondition: The packet's network and transport header must be set. -// -// This is called in the hot path even when iptables are disabled, so we ensure -// that it does not allocate. Note that called functions (e.g. -// getConnAndUpdate) can allocate. -// TODO(b/233951539): checkescape fails on arm sometimes. Fix and re-add. -func (it *IPTables) CheckOutput(pkt *PacketBuffer, r *Route, outNicName string) bool { - tables := [...]checkTable{ - { - fn: check, - tableID: MangleID, - }, - { - fn: checkNAT, - tableID: NATID, - }, - { - fn: check, - tableID: FilterID, - }, - } - - if it.shouldSkipOrPopulateTables(tables[:], pkt) { - return true - } - - // We don't need to validate the checksum in the Output path: we can assume - // we calculate it correctly, plus checksumming may be deferred due to GSO. - pkt.tuple = it.connections.getConnAndUpdate(pkt, true /* skipChecksumValidation */) - - for _, table := range tables { - if !table.fn(it, table.table, Output, pkt, r, nil /* addressEP */, "" /* inNicName */, outNicName) { - return false - } - } - - return true -} - -// CheckPostrouting performs the postrouting hook on the packet. -// -// Returns true iff the packet may continue traversing the stack; the packet -// must be dropped if false is returned. -// -// Precondition: The packet's network and transport header must be set. -// -// This is called in the hot path even when iptables are disabled, so we ensure -// that it does not allocate. Note that called functions (e.g. -// getConnAndUpdate) can allocate. -// TODO(b/233951539): checkescape fails on arm sometimes. Fix and re-add. -func (it *IPTables) CheckPostrouting(pkt *PacketBuffer, r *Route, addressEP AddressableEndpoint, outNicName string) bool { - tables := [...]checkTable{ - { - fn: check, - tableID: MangleID, - }, - { - fn: checkNAT, - tableID: NATID, - }, - } - - if it.shouldSkipOrPopulateTables(tables[:], pkt) { - return true - } - - for _, table := range tables { - if !table.fn(it, table.table, Postrouting, pkt, r, addressEP, "" /* inNicName */, outNicName) { - return false - } - } - - if t := pkt.tuple; t != nil { - pkt.tuple = nil - return t.conn.finalize() - } - return true -} - -// Note: this used to omit the *IPTables parameter, but doing so caused -// unnecessary allocations. -type checkTableFn func(it *IPTables, table Table, hook Hook, pkt *PacketBuffer, r *Route, addressEP AddressableEndpoint, inNicName, outNicName string) bool - -func checkNAT(it *IPTables, table Table, hook Hook, pkt *PacketBuffer, r *Route, addressEP AddressableEndpoint, inNicName, outNicName string) bool { - return it.checkNAT(table, hook, pkt, r, addressEP, inNicName, outNicName) -} - -// checkNAT runs the packet through the NAT table. -// -// See check. -func (it *IPTables) checkNAT(table Table, hook Hook, pkt *PacketBuffer, r *Route, addressEP AddressableEndpoint, inNicName, outNicName string) bool { - t := pkt.tuple - if t != nil && t.conn.handlePacket(pkt, hook, r) { - return true - } - - if !it.check(table, hook, pkt, r, addressEP, inNicName, outNicName) { - return false - } - - if t == nil { - return true - } - - dnat, natDone := func() (bool, bool) { - switch hook { - case Prerouting, Output: - return true, pkt.dnatDone - case Input, Postrouting: - return false, pkt.snatDone - case Forward: - panic("should not attempt NAT in forwarding") - default: - panic(fmt.Sprintf("unhandled hook = %d", hook)) - } - }() - - // Make sure the connection is NATed. - // - // If the packet was already NATed, the connection must be NATed. - if !natDone { - t.conn.maybePerformNoopNAT(pkt, hook, r, dnat) - } - - return true -} - -func check(it *IPTables, table Table, hook Hook, pkt *PacketBuffer, r *Route, addressEP AddressableEndpoint, inNicName, outNicName string) bool { - return it.check(table, hook, pkt, r, addressEP, inNicName, outNicName) -} - -// check runs the packet through the rules in the specified table for the -// hook. It returns true if the packet should continue to traverse through the -// network stack or tables, or false when it must be dropped. -// -// Precondition: The packet's network and transport header must be set. -func (it *IPTables) check(table Table, hook Hook, pkt *PacketBuffer, r *Route, addressEP AddressableEndpoint, inNicName, outNicName string) bool { - ruleIdx := table.BuiltinChains[hook] - switch verdict := it.checkChain(hook, pkt, table, ruleIdx, r, addressEP, inNicName, outNicName); verdict { - // If the table returns Accept, move on to the next table. - case chainAccept: - return true - // The Drop verdict is final. - case chainDrop: - return false - case chainReturn: - // Any Return from a built-in chain means we have to - // call the underflow. - underflow := table.Rules[table.Underflows[hook]] - switch v, _ := underflow.Target.Action(pkt, hook, r, addressEP); v { - case RuleAccept: - return true - case RuleDrop: - return false - case RuleJump, RuleReturn: - panic("Underflows should only return RuleAccept or RuleDrop.") - default: - panic(fmt.Sprintf("Unknown verdict: %d", v)) - } - default: - panic(fmt.Sprintf("Unknown verdict %v.", verdict)) - } -} - -// beforeSave is invoked by stateify. -func (it *IPTables) beforeSave() { - // Ensure the reaper exits cleanly. - it.reaper.Stop() - // Prevent others from modifying the connection table. - it.connections.mu.Lock() -} - -// afterLoad is invoked by stateify. -func (it *IPTables) afterLoad(context.Context) { - it.startReaper(reaperDelay) -} - -// startReaper periodically reaps timed out connections. -func (it *IPTables) startReaper(interval time.Duration) { - bucket := 0 - it.reaper = it.connections.clock.AfterFunc(interval, func() { - bucket, interval = it.connections.reapUnused(bucket, interval) - it.reaper.Reset(interval) - }) -} - -// Preconditions: -// - pkt is a IPv4 packet of at least length header.IPv4MinimumSize. -// - pkt.NetworkHeader is not nil. -func (it *IPTables) checkChain(hook Hook, pkt *PacketBuffer, table Table, ruleIdx int, r *Route, addressEP AddressableEndpoint, inNicName, outNicName string) chainVerdict { - // Start from ruleIdx and walk the list of rules until a rule gives us - // a verdict. - for ruleIdx < len(table.Rules) { - switch verdict, jumpTo := it.checkRule(hook, pkt, table, ruleIdx, r, addressEP, inNicName, outNicName); verdict { - case RuleAccept: - return chainAccept - - case RuleDrop: - return chainDrop - - case RuleReturn: - return chainReturn - - case RuleJump: - // "Jumping" to the next rule just means we're - // continuing on down the list. - if jumpTo == ruleIdx+1 { - ruleIdx++ - continue - } - switch verdict := it.checkChain(hook, pkt, table, jumpTo, r, addressEP, inNicName, outNicName); verdict { - case chainAccept: - return chainAccept - case chainDrop: - return chainDrop - case chainReturn: - ruleIdx++ - continue - default: - panic(fmt.Sprintf("Unknown verdict: %d", verdict)) - } - - default: - panic(fmt.Sprintf("Unknown verdict: %d", verdict)) - } - - } - - // We got through the entire table without a decision. Default to DROP - // for safety. - return chainDrop -} - -// Preconditions: -// - pkt is a IPv4 packet of at least length header.IPv4MinimumSize. -// - pkt.NetworkHeader is not nil. -// -// * pkt is a IPv4 packet of at least length header.IPv4MinimumSize. -// * pkt.NetworkHeader is not nil. -func (it *IPTables) checkRule(hook Hook, pkt *PacketBuffer, table Table, ruleIdx int, r *Route, addressEP AddressableEndpoint, inNicName, outNicName string) (RuleVerdict, int) { - rule := table.Rules[ruleIdx] - - // Check whether the packet matches the IP header filter. - if !rule.Filter.match(pkt, hook, inNicName, outNicName) { - // Continue on to the next rule. - return RuleJump, ruleIdx + 1 - } - - // Go through each rule matcher. If they all match, run - // the rule target. - for _, matcher := range rule.Matchers { - matches, hotdrop := matcher.Match(hook, pkt, inNicName, outNicName) - if hotdrop { - return RuleDrop, 0 - } - if !matches { - // Continue on to the next rule. - return RuleJump, ruleIdx + 1 - } - } - - // All the matchers matched, so run the target. - return rule.Target.Action(pkt, hook, r, addressEP) -} - -// OriginalDst returns the original destination of redirected connections. It -// returns an error if the connection doesn't exist or isn't redirected. -func (it *IPTables) OriginalDst(epID TransportEndpointID, netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber) (tcpip.Address, uint16, tcpip.Error) { - it.mu.RLock() - defer it.mu.RUnlock() - if !it.modified { - return tcpip.Address{}, 0, &tcpip.ErrNotConnected{} - } - return it.connections.originalDst(epID, netProto, transProto) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/iptables_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/iptables_mutex.go deleted file mode 100644 index 9a2b97f0d9..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/iptables_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type ipTablesRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var ipTableslockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type ipTableslockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *ipTablesRWMutex) Lock() { - locking.AddGLock(ipTablesprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *ipTablesRWMutex) NestedLock(i ipTableslockNameIndex) { - locking.AddGLock(ipTablesprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *ipTablesRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(ipTablesprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *ipTablesRWMutex) NestedUnlock(i ipTableslockNameIndex) { - m.mu.Unlock() - locking.DelGLock(ipTablesprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *ipTablesRWMutex) RLock() { - locking.AddGLock(ipTablesprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *ipTablesRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(ipTablesprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *ipTablesRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *ipTablesRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *ipTablesRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var ipTablesprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func ipTablesinitLockNames() {} - -func init() { - ipTablesinitLockNames() - ipTablesprefixIndex = locking.NewMutexClass(reflect.TypeOf(ipTablesRWMutex{}), ipTableslockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/iptables_targets.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/iptables_targets.go deleted file mode 100644 index 3ddc5d9870..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/iptables_targets.go +++ /dev/null @@ -1,493 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "fmt" - "math" - - "gvisor.dev/gvisor/pkg/log" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" -) - -// AcceptTarget accepts packets. -// -// +stateify savable -type AcceptTarget struct { - // NetworkProtocol is the network protocol the target is used with. - NetworkProtocol tcpip.NetworkProtocolNumber -} - -// Action implements Target.Action. -func (*AcceptTarget) Action(*PacketBuffer, Hook, *Route, AddressableEndpoint) (RuleVerdict, int) { - return RuleAccept, 0 -} - -// DropTarget drops packets. -// -// +stateify savable -type DropTarget struct { - // NetworkProtocol is the network protocol the target is used with. - NetworkProtocol tcpip.NetworkProtocolNumber -} - -// Action implements Target.Action. -func (*DropTarget) Action(*PacketBuffer, Hook, *Route, AddressableEndpoint) (RuleVerdict, int) { - return RuleDrop, 0 -} - -// RejectIPv4WithHandler handles rejecting a packet. -type RejectIPv4WithHandler interface { - // SendRejectionError sends an error packet in response to the packet. - SendRejectionError(pkt *PacketBuffer, rejectWith RejectIPv4WithICMPType, inputHook bool) tcpip.Error -} - -// RejectIPv4WithICMPType indicates the type of ICMP error that should be sent. -type RejectIPv4WithICMPType int - -// The types of errors that may be returned when rejecting IPv4 packets. -const ( - _ RejectIPv4WithICMPType = iota - RejectIPv4WithICMPNetUnreachable - RejectIPv4WithICMPHostUnreachable - RejectIPv4WithICMPPortUnreachable - RejectIPv4WithICMPNetProhibited - RejectIPv4WithICMPHostProhibited - RejectIPv4WithICMPAdminProhibited -) - -// RejectIPv4Target drops packets and sends back an error packet in response to the -// matched packet. -// -// +stateify savable -type RejectIPv4Target struct { - Handler RejectIPv4WithHandler - RejectWith RejectIPv4WithICMPType -} - -// Action implements Target.Action. -func (rt *RejectIPv4Target) Action(pkt *PacketBuffer, hook Hook, _ *Route, _ AddressableEndpoint) (RuleVerdict, int) { - switch hook { - case Input, Forward, Output: - // There is nothing reasonable for us to do in response to an error here; - // we already drop the packet. - _ = rt.Handler.SendRejectionError(pkt, rt.RejectWith, hook == Input) - return RuleDrop, 0 - case Prerouting, Postrouting: - panic(fmt.Sprintf("%s hook not supported for REDIRECT", hook)) - default: - panic(fmt.Sprintf("unhandled hook = %s", hook)) - } -} - -// RejectIPv6WithHandler handles rejecting a packet. -type RejectIPv6WithHandler interface { - // SendRejectionError sends an error packet in response to the packet. - SendRejectionError(pkt *PacketBuffer, rejectWith RejectIPv6WithICMPType, forwardingHook bool) tcpip.Error -} - -// RejectIPv6WithICMPType indicates the type of ICMP error that should be sent. -type RejectIPv6WithICMPType int - -// The types of errors that may be returned when rejecting IPv6 packets. -const ( - _ RejectIPv6WithICMPType = iota - RejectIPv6WithICMPNoRoute - RejectIPv6WithICMPAddrUnreachable - RejectIPv6WithICMPPortUnreachable - RejectIPv6WithICMPAdminProhibited -) - -// RejectIPv6Target drops packets and sends back an error packet in response to the -// matched packet. -// -// +stateify savable -type RejectIPv6Target struct { - Handler RejectIPv6WithHandler - RejectWith RejectIPv6WithICMPType -} - -// Action implements Target.Action. -func (rt *RejectIPv6Target) Action(pkt *PacketBuffer, hook Hook, _ *Route, _ AddressableEndpoint) (RuleVerdict, int) { - switch hook { - case Input, Forward, Output: - // There is nothing reasonable for us to do in response to an error here; - // we already drop the packet. - _ = rt.Handler.SendRejectionError(pkt, rt.RejectWith, hook == Input) - return RuleDrop, 0 - case Prerouting, Postrouting: - panic(fmt.Sprintf("%s hook not supported for REDIRECT", hook)) - default: - panic(fmt.Sprintf("unhandled hook = %s", hook)) - } -} - -// ErrorTarget logs an error and drops the packet. It represents a target that -// should be unreachable. -// -// +stateify savable -type ErrorTarget struct { - // NetworkProtocol is the network protocol the target is used with. - NetworkProtocol tcpip.NetworkProtocolNumber -} - -// Action implements Target.Action. -func (*ErrorTarget) Action(*PacketBuffer, Hook, *Route, AddressableEndpoint) (RuleVerdict, int) { - log.Debugf("ErrorTarget triggered.") - return RuleDrop, 0 -} - -// UserChainTarget marks a rule as the beginning of a user chain. -// -// +stateify savable -type UserChainTarget struct { - // Name is the chain name. - Name string - - // NetworkProtocol is the network protocol the target is used with. - NetworkProtocol tcpip.NetworkProtocolNumber -} - -// Action implements Target.Action. -func (*UserChainTarget) Action(*PacketBuffer, Hook, *Route, AddressableEndpoint) (RuleVerdict, int) { - panic("UserChainTarget should never be called.") -} - -// ReturnTarget returns from the current chain. If the chain is a built-in, the -// hook's underflow should be called. -// -// +stateify savable -type ReturnTarget struct { - // NetworkProtocol is the network protocol the target is used with. - NetworkProtocol tcpip.NetworkProtocolNumber -} - -// Action implements Target.Action. -func (*ReturnTarget) Action(*PacketBuffer, Hook, *Route, AddressableEndpoint) (RuleVerdict, int) { - return RuleReturn, 0 -} - -// DNATTarget modifies the destination port/IP of packets. -// -// +stateify savable -type DNATTarget struct { - // The new destination address for packets. - // - // Immutable. - Addr tcpip.Address - - // The new destination port for packets. - // - // Immutable. - Port uint16 - - // NetworkProtocol is the network protocol the target is used with. - // - // Immutable. - NetworkProtocol tcpip.NetworkProtocolNumber - - // ChangeAddress indicates whether we should check addresses. - // - // Immutable. - ChangeAddress bool - - // ChangePort indicates whether we should check ports. - // - // Immutable. - ChangePort bool -} - -// Action implements Target.Action. -func (rt *DNATTarget) Action(pkt *PacketBuffer, hook Hook, r *Route, addressEP AddressableEndpoint) (RuleVerdict, int) { - // Sanity check. - if rt.NetworkProtocol != pkt.NetworkProtocolNumber { - panic(fmt.Sprintf( - "DNATTarget.Action with NetworkProtocol %d called on packet with NetworkProtocolNumber %d", - rt.NetworkProtocol, pkt.NetworkProtocolNumber)) - } - - switch hook { - case Prerouting, Output: - case Input, Forward, Postrouting: - panic(fmt.Sprintf("%s not supported for DNAT", hook)) - default: - panic(fmt.Sprintf("%s unrecognized", hook)) - } - - return dnatAction(pkt, hook, r, rt.Port, rt.Addr, rt.ChangePort, rt.ChangeAddress) - -} - -// RedirectTarget redirects the packet to this machine by modifying the -// destination port/IP. Outgoing packets are redirected to the loopback device, -// and incoming packets are redirected to the incoming interface (rather than -// forwarded). -// -// +stateify savable -type RedirectTarget struct { - // Port indicates port used to redirect. It is immutable. - Port uint16 - - // NetworkProtocol is the network protocol the target is used with. It - // is immutable. - NetworkProtocol tcpip.NetworkProtocolNumber -} - -// Action implements Target.Action. -func (rt *RedirectTarget) Action(pkt *PacketBuffer, hook Hook, r *Route, addressEP AddressableEndpoint) (RuleVerdict, int) { - // Sanity check. - if rt.NetworkProtocol != pkt.NetworkProtocolNumber { - panic(fmt.Sprintf( - "RedirectTarget.Action with NetworkProtocol %d called on packet with NetworkProtocolNumber %d", - rt.NetworkProtocol, pkt.NetworkProtocolNumber)) - } - - // Change the address to loopback (127.0.0.1 or ::1) in Output and to - // the primary address of the incoming interface in Prerouting. - var address tcpip.Address - switch hook { - case Output: - if pkt.NetworkProtocolNumber == header.IPv4ProtocolNumber { - address = tcpip.AddrFrom4([4]byte{127, 0, 0, 1}) - } else { - address = header.IPv6Loopback - } - case Prerouting: - // addressEP is expected to be set for the prerouting hook. - address = addressEP.MainAddress().Address - default: - panic("redirect target is supported only on output and prerouting hooks") - } - - return dnatAction(pkt, hook, r, rt.Port, address, true /* changePort */, true /* changeAddress */) -} - -// SNATTarget modifies the source port/IP in the outgoing packets. -// -// +stateify savable -type SNATTarget struct { - Addr tcpip.Address - Port uint16 - - // NetworkProtocol is the network protocol the target is used with. It - // is immutable. - NetworkProtocol tcpip.NetworkProtocolNumber - - // ChangeAddress indicates whether we should check addresses. - // - // Immutable. - ChangeAddress bool - - // ChangePort indicates whether we should check ports. - // - // Immutable. - ChangePort bool -} - -func dnatAction(pkt *PacketBuffer, hook Hook, r *Route, port uint16, address tcpip.Address, changePort, changeAddress bool) (RuleVerdict, int) { - return natAction(pkt, hook, r, portOrIdentRange{start: port, size: 1}, address, true /* dnat */, changePort, changeAddress) -} - -func targetPortRangeForTCPAndUDP(originalSrcPort uint16) portOrIdentRange { - // As per iptables(8), - // - // If no port range is specified, then source ports below 512 will be - // mapped to other ports below 512: those between 512 and 1023 inclusive - // will be mapped to ports below 1024, and other ports will be mapped to - // 1024 or above. - switch { - case originalSrcPort < 512: - return portOrIdentRange{start: 1, size: 511} - case originalSrcPort < 1024: - return portOrIdentRange{start: 1, size: 1023} - default: - return portOrIdentRange{start: 1024, size: math.MaxUint16 - 1023} - } -} - -func snatAction(pkt *PacketBuffer, hook Hook, r *Route, port uint16, address tcpip.Address, changePort, changeAddress bool) (RuleVerdict, int) { - portsOrIdents := portOrIdentRange{start: port, size: 1} - - switch pkt.TransportProtocolNumber { - case header.UDPProtocolNumber: - if port == 0 { - portsOrIdents = targetPortRangeForTCPAndUDP(header.UDP(pkt.TransportHeader().Slice()).SourcePort()) - } - case header.TCPProtocolNumber: - if port == 0 { - portsOrIdents = targetPortRangeForTCPAndUDP(header.TCP(pkt.TransportHeader().Slice()).SourcePort()) - } - case header.ICMPv4ProtocolNumber, header.ICMPv6ProtocolNumber: - // Allow NAT-ing to any 16-bit value for ICMP's Ident field to match Linux - // behaviour. - // - // https://github.com/torvalds/linux/blob/58e1100fdc5990b0cc0d4beaf2562a92e621ac7d/net/netfilter/nf_nat_core.c#L391 - portsOrIdents = portOrIdentRange{start: 0, size: math.MaxUint16 + 1} - } - - return natAction(pkt, hook, r, portsOrIdents, address, false /* dnat */, changePort, changeAddress) -} - -func natAction(pkt *PacketBuffer, hook Hook, r *Route, portsOrIdents portOrIdentRange, address tcpip.Address, dnat, changePort, changeAddress bool) (RuleVerdict, int) { - // Drop the packet if network and transport header are not set. - if len(pkt.NetworkHeader().Slice()) == 0 || len(pkt.TransportHeader().Slice()) == 0 { - return RuleDrop, 0 - } - - if t := pkt.tuple; t != nil { - t.conn.performNAT(pkt, hook, r, portsOrIdents, address, dnat, changePort, changeAddress) - return RuleAccept, 0 - } - - return RuleDrop, 0 -} - -// Action implements Target.Action. -func (st *SNATTarget) Action(pkt *PacketBuffer, hook Hook, r *Route, _ AddressableEndpoint) (RuleVerdict, int) { - // Sanity check. - if st.NetworkProtocol != pkt.NetworkProtocolNumber { - panic(fmt.Sprintf( - "SNATTarget.Action with NetworkProtocol %d called on packet with NetworkProtocolNumber %d", - st.NetworkProtocol, pkt.NetworkProtocolNumber)) - } - - switch hook { - case Postrouting, Input: - case Prerouting, Output, Forward: - panic(fmt.Sprintf("%s not supported", hook)) - default: - panic(fmt.Sprintf("%s unrecognized", hook)) - } - - return snatAction(pkt, hook, r, st.Port, st.Addr, st.ChangePort, st.ChangeAddress) -} - -// MasqueradeTarget modifies the source port/IP in the outgoing packets. -// -// +stateify savable -type MasqueradeTarget struct { - // NetworkProtocol is the network protocol the target is used with. It - // is immutable. - NetworkProtocol tcpip.NetworkProtocolNumber -} - -// Action implements Target.Action. -func (mt *MasqueradeTarget) Action(pkt *PacketBuffer, hook Hook, r *Route, addressEP AddressableEndpoint) (RuleVerdict, int) { - // Sanity check. - if mt.NetworkProtocol != pkt.NetworkProtocolNumber { - panic(fmt.Sprintf( - "MasqueradeTarget.Action with NetworkProtocol %d called on packet with NetworkProtocolNumber %d", - mt.NetworkProtocol, pkt.NetworkProtocolNumber)) - } - - switch hook { - case Postrouting: - case Prerouting, Input, Forward, Output: - panic(fmt.Sprintf("masquerade target is supported only on postrouting hook; hook = %d", hook)) - default: - panic(fmt.Sprintf("%s unrecognized", hook)) - } - - // addressEP is expected to be set for the postrouting hook. - ep := addressEP.AcquireOutgoingPrimaryAddress(pkt.Network().DestinationAddress(), tcpip.Address{} /* srcHint */, false /* allowExpired */) - if ep == nil { - // No address exists that we can use as a source address. - return RuleDrop, 0 - } - - address := ep.AddressWithPrefix().Address - ep.DecRef() - return snatAction(pkt, hook, r, 0 /* port */, address, true /* changePort */, true /* changeAddress */) -} - -func rewritePacket(n header.Network, t header.Transport, updateSRCFields, fullChecksum, updatePseudoHeader bool, newPortOrIdent uint16, newAddr tcpip.Address) { - switch t := t.(type) { - case header.ChecksummableTransport: - if updateSRCFields { - if fullChecksum { - t.SetSourcePortWithChecksumUpdate(newPortOrIdent) - } else { - t.SetSourcePort(newPortOrIdent) - } - } else { - if fullChecksum { - t.SetDestinationPortWithChecksumUpdate(newPortOrIdent) - } else { - t.SetDestinationPort(newPortOrIdent) - } - } - - if updatePseudoHeader { - var oldAddr tcpip.Address - if updateSRCFields { - oldAddr = n.SourceAddress() - } else { - oldAddr = n.DestinationAddress() - } - - t.UpdateChecksumPseudoHeaderAddress(oldAddr, newAddr, fullChecksum) - } - case header.ICMPv4: - switch icmpType := t.Type(); icmpType { - case header.ICMPv4Echo: - if updateSRCFields { - t.SetIdentWithChecksumUpdate(newPortOrIdent) - } - case header.ICMPv4EchoReply: - if !updateSRCFields { - t.SetIdentWithChecksumUpdate(newPortOrIdent) - } - default: - panic(fmt.Sprintf("unexpected ICMPv4 type = %d", icmpType)) - } - case header.ICMPv6: - switch icmpType := t.Type(); icmpType { - case header.ICMPv6EchoRequest: - if updateSRCFields { - t.SetIdentWithChecksumUpdate(newPortOrIdent) - } - case header.ICMPv6EchoReply: - if !updateSRCFields { - t.SetIdentWithChecksumUpdate(newPortOrIdent) - } - default: - panic(fmt.Sprintf("unexpected ICMPv4 type = %d", icmpType)) - } - - var oldAddr tcpip.Address - if updateSRCFields { - oldAddr = n.SourceAddress() - } else { - oldAddr = n.DestinationAddress() - } - - t.UpdateChecksumPseudoHeaderAddress(oldAddr, newAddr) - default: - panic(fmt.Sprintf("unhandled transport = %#v", t)) - } - - if checksummableNetHeader, ok := n.(header.ChecksummableNetwork); ok { - if updateSRCFields { - checksummableNetHeader.SetSourceAddressWithChecksumUpdate(newAddr) - } else { - checksummableNetHeader.SetDestinationAddressWithChecksumUpdate(newAddr) - } - } else if updateSRCFields { - n.SetSourceAddress(newAddr) - } else { - n.SetDestinationAddress(newAddr) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/iptables_types.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/iptables_types.go deleted file mode 100644 index 0c7ce686e5..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/iptables_types.go +++ /dev/null @@ -1,387 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "fmt" - "strings" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" -) - -// A Hook specifies one of the hooks built into the network stack. -// -// Userspace app Userspace app -// ^ | -// | v -// [Input] [Output] -// ^ | -// | v -// | routing -// | | -// | v -// ----->[Prerouting]----->routing----->[Forward]---------[Postrouting]-----> -type Hook uint - -const ( - // Prerouting happens before a packet is routed to applications or to - // be forwarded. - Prerouting Hook = iota - - // Input happens before a packet reaches an application. - Input - - // Forward happens once it's decided that a packet should be forwarded - // to another host. - Forward - - // Output happens after a packet is written by an application to be - // sent out. - Output - - // Postrouting happens just before a packet goes out on the wire. - Postrouting - - // NumHooks is the total number of hooks. - NumHooks -) - -// A RuleVerdict is what a rule decides should be done with a packet. -type RuleVerdict int - -const ( - // RuleAccept indicates the packet should continue through netstack. - RuleAccept RuleVerdict = iota - - // RuleDrop indicates the packet should be dropped. - RuleDrop - - // RuleJump indicates the packet should jump to another chain. - RuleJump - - // RuleReturn indicates the packet should return to the previous chain. - RuleReturn -) - -// IPTables holds all the tables for a netstack. -// -// +stateify savable -type IPTables struct { - connections ConnTrack - - reaper tcpip.Timer - - mu ipTablesRWMutex `state:"nosave"` - // v4Tables and v6tables map tableIDs to tables. They hold builtin - // tables only, not user tables. - // - // mu protects the array of tables, but not the tables themselves. - // +checklocks:mu - v4Tables [NumTables]Table - // - // mu protects the array of tables, but not the tables themselves. - // +checklocks:mu - v6Tables [NumTables]Table - // modified is whether tables have been modified at least once. It is - // used to elide the iptables performance overhead for workloads that - // don't utilize iptables. - // - // +checklocks:mu - modified bool -} - -// Modified returns whether iptables has been modified. It is inherently racy -// and intended for use only in tests. -func (it *IPTables) Modified() bool { - it.mu.Lock() - defer it.mu.Unlock() - return it.modified -} - -// VisitTargets traverses all the targets of all tables and replaces each with -// transform(target). -func (it *IPTables) VisitTargets(transform func(Target) Target) { - it.mu.Lock() - defer it.mu.Unlock() - - for tid := range it.v4Tables { - for i, rule := range it.v4Tables[tid].Rules { - it.v4Tables[tid].Rules[i].Target = transform(rule.Target) - } - } - for tid := range it.v6Tables { - for i, rule := range it.v6Tables[tid].Rules { - it.v6Tables[tid].Rules[i].Target = transform(rule.Target) - } - } -} - -// A Table defines a set of chains and hooks into the network stack. -// -// It is a list of Rules, entry points (BuiltinChains), and error handlers -// (Underflows). As packets traverse netstack, they hit hooks. When a packet -// hits a hook, iptables compares it to Rules starting from that hook's entry -// point. So if a packet hits the Input hook, we look up the corresponding -// entry point in BuiltinChains and jump to that point. -// -// If the Rule doesn't match the packet, iptables continues to the next Rule. -// If a Rule does match, it can issue a verdict on the packet (e.g. RuleAccept -// or RuleDrop) that causes the packet to stop traversing iptables. It can also -// jump to other rules or perform custom actions based on Rule.Target. -// -// Underflow Rules are invoked when a chain returns without reaching a verdict. -// -// +stateify savable -type Table struct { - // Rules holds the rules that make up the table. - Rules []Rule - - // BuiltinChains maps builtin chains to their entrypoint rule in Rules. - BuiltinChains [NumHooks]int - - // Underflows maps builtin chains to their underflow rule in Rules - // (i.e. the rule to execute if the chain returns without a verdict). - Underflows [NumHooks]int -} - -// ValidHooks returns a bitmap of the builtin hooks for the given table. -func (table *Table) ValidHooks() uint32 { - hooks := uint32(0) - for hook, ruleIdx := range table.BuiltinChains { - if ruleIdx != HookUnset { - hooks |= 1 << hook - } - } - return hooks -} - -// A Rule is a packet processing rule. It consists of two pieces. First it -// contains zero or more matchers, each of which is a specification of which -// packets this rule applies to. If there are no matchers in the rule, it -// applies to any packet. -// -// +stateify savable -type Rule struct { - // Filter holds basic IP filtering fields common to every rule. - Filter IPHeaderFilter - - // Matchers is the list of matchers for this rule. - Matchers []Matcher - - // Target is the action to invoke if all the matchers match the packet. - Target Target -} - -// IPHeaderFilter performs basic IP header matching common to every rule. -// -// +stateify savable -type IPHeaderFilter struct { - // Protocol matches the transport protocol. - Protocol tcpip.TransportProtocolNumber - - // CheckProtocol determines whether the Protocol field should be - // checked during matching. - CheckProtocol bool - - // Dst matches the destination IP address. - Dst tcpip.Address - - // DstMask masks bits of the destination IP address when comparing with - // Dst. - DstMask tcpip.Address - - // DstInvert inverts the meaning of the destination IP check, i.e. when - // true the filter will match packets that fail the destination - // comparison. - DstInvert bool - - // Src matches the source IP address. - Src tcpip.Address - - // SrcMask masks bits of the source IP address when comparing with Src. - SrcMask tcpip.Address - - // SrcInvert inverts the meaning of the source IP check, i.e. when true the - // filter will match packets that fail the source comparison. - SrcInvert bool - - // InputInterface matches the name of the incoming interface for the packet. - InputInterface string - - // InputInterfaceMask masks the characters of the interface name when - // comparing with InputInterface. - InputInterfaceMask string - - // InputInterfaceInvert inverts the meaning of incoming interface check, - // i.e. when true the filter will match packets that fail the incoming - // interface comparison. - InputInterfaceInvert bool - - // OutputInterface matches the name of the outgoing interface for the packet. - OutputInterface string - - // OutputInterfaceMask masks the characters of the interface name when - // comparing with OutputInterface. - OutputInterfaceMask string - - // OutputInterfaceInvert inverts the meaning of outgoing interface check, - // i.e. when true the filter will match packets that fail the outgoing - // interface comparison. - OutputInterfaceInvert bool -} - -// EmptyFilter4 returns an initialized IPv4 header filter. -func EmptyFilter4() IPHeaderFilter { - return IPHeaderFilter{ - Dst: tcpip.AddrFrom4([4]byte{}), - DstMask: tcpip.AddrFrom4([4]byte{}), - Src: tcpip.AddrFrom4([4]byte{}), - SrcMask: tcpip.AddrFrom4([4]byte{}), - } -} - -// EmptyFilter6 returns an initialized IPv6 header filter. -func EmptyFilter6() IPHeaderFilter { - return IPHeaderFilter{ - Dst: tcpip.AddrFrom16([16]byte{}), - DstMask: tcpip.AddrFrom16([16]byte{}), - Src: tcpip.AddrFrom16([16]byte{}), - SrcMask: tcpip.AddrFrom16([16]byte{}), - } -} - -// match returns whether pkt matches the filter. -// -// Preconditions: pkt.NetworkHeader is set and is at least of the minimal IPv4 -// or IPv6 header length. -func (fl IPHeaderFilter) match(pkt *PacketBuffer, hook Hook, inNicName, outNicName string) bool { - // Extract header fields. - var ( - transProto tcpip.TransportProtocolNumber - dstAddr tcpip.Address - srcAddr tcpip.Address - ) - switch proto := pkt.NetworkProtocolNumber; proto { - case header.IPv4ProtocolNumber: - hdr := header.IPv4(pkt.NetworkHeader().Slice()) - transProto = hdr.TransportProtocol() - dstAddr = hdr.DestinationAddress() - srcAddr = hdr.SourceAddress() - - case header.IPv6ProtocolNumber: - hdr := header.IPv6(pkt.NetworkHeader().Slice()) - transProto = hdr.TransportProtocol() - dstAddr = hdr.DestinationAddress() - srcAddr = hdr.SourceAddress() - - default: - panic(fmt.Sprintf("unknown network protocol with EtherType: %d", proto)) - } - - // Check the transport protocol. - if fl.CheckProtocol && fl.Protocol != transProto { - return false - } - - // Check the addresses. - if !filterAddress(dstAddr, fl.DstMask, fl.Dst, fl.DstInvert) || - !filterAddress(srcAddr, fl.SrcMask, fl.Src, fl.SrcInvert) { - return false - } - - switch hook { - case Prerouting, Input: - return matchIfName(inNicName, fl.InputInterface, fl.InputInterfaceInvert) - case Output: - return matchIfName(outNicName, fl.OutputInterface, fl.OutputInterfaceInvert) - case Forward: - if !matchIfName(inNicName, fl.InputInterface, fl.InputInterfaceInvert) { - return false - } - - if !matchIfName(outNicName, fl.OutputInterface, fl.OutputInterfaceInvert) { - return false - } - - return true - case Postrouting: - return true - default: - panic(fmt.Sprintf("unknown hook: %d", hook)) - } -} - -func matchIfName(nicName string, ifName string, invert bool) bool { - n := len(ifName) - if n == 0 { - // If the interface name is omitted in the filter, any interface will match. - return true - } - // If the interface name ends with '+', any interface which begins with the - // name should be matched. - var matches bool - if strings.HasSuffix(ifName, "+") { - matches = strings.HasPrefix(nicName, ifName[:n-1]) - } else { - matches = nicName == ifName - } - return matches != invert -} - -// NetworkProtocol returns the protocol (IPv4 or IPv6) on to which the header -// applies. -func (fl IPHeaderFilter) NetworkProtocol() tcpip.NetworkProtocolNumber { - switch fl.Src.BitLen() { - case header.IPv4AddressSizeBits: - return header.IPv4ProtocolNumber - case header.IPv6AddressSizeBits: - return header.IPv6ProtocolNumber - } - panic(fmt.Sprintf("invalid address in IPHeaderFilter: %s", fl.Src)) -} - -// filterAddress returns whether addr matches the filter. -func filterAddress(addr, mask, filterAddr tcpip.Address, invert bool) bool { - matches := true - addrBytes := addr.AsSlice() - maskBytes := mask.AsSlice() - filterBytes := filterAddr.AsSlice() - for i := range filterAddr.AsSlice() { - if addrBytes[i]&maskBytes[i] != filterBytes[i] { - matches = false - break - } - } - return matches != invert -} - -// A Matcher is the interface for matching packets. -type Matcher interface { - // Match returns whether the packet matches and whether the packet - // should be "hotdropped", i.e. dropped immediately. This is usually - // used for suspicious packets. - // - // Precondition: packet.NetworkHeader is set. - Match(hook Hook, packet *PacketBuffer, inputInterfaceName, outputInterfaceName string) (matches bool, hotdrop bool) -} - -// A Target is the interface for taking an action for a packet. -type Target interface { - // Action takes an action on the packet and returns a verdict on how - // traversal should (or should not) continue. If the return value is - // Jump, it also returns the index of the rule to jump to. - Action(*PacketBuffer, Hook, *Route, AddressableEndpoint) (RuleVerdict, int) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/multi_port_endpoint_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/multi_port_endpoint_mutex.go deleted file mode 100644 index 1038997be8..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/multi_port_endpoint_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type multiPortEndpointRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var multiPortEndpointlockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type multiPortEndpointlockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *multiPortEndpointRWMutex) Lock() { - locking.AddGLock(multiPortEndpointprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *multiPortEndpointRWMutex) NestedLock(i multiPortEndpointlockNameIndex) { - locking.AddGLock(multiPortEndpointprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *multiPortEndpointRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(multiPortEndpointprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *multiPortEndpointRWMutex) NestedUnlock(i multiPortEndpointlockNameIndex) { - m.mu.Unlock() - locking.DelGLock(multiPortEndpointprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *multiPortEndpointRWMutex) RLock() { - locking.AddGLock(multiPortEndpointprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *multiPortEndpointRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(multiPortEndpointprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *multiPortEndpointRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *multiPortEndpointRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *multiPortEndpointRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var multiPortEndpointprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func multiPortEndpointinitLockNames() {} - -func init() { - multiPortEndpointinitLockNames() - multiPortEndpointprefixIndex = locking.NewMutexClass(reflect.TypeOf(multiPortEndpointRWMutex{}), multiPortEndpointlockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighbor_cache.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighbor_cache.go deleted file mode 100644 index fb01e3058b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighbor_cache.go +++ /dev/null @@ -1,314 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "fmt" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -// NeighborCacheSize is the size of the neighborCache. Exceeding this size will -// result in the least recently used entry being evicted. -const NeighborCacheSize = 512 // max entries per interface - -// NeighborStats holds metrics for the neighbor table. -type NeighborStats struct { - // UnreachableEntryLookups counts the number of lookups performed on an - // entry in Unreachable state. - UnreachableEntryLookups *tcpip.StatCounter -} - -// +stateify savable -type dynamicCacheEntry struct { - lru neighborEntryList - - // count tracks the amount of dynamic entries in the cache. This is - // needed since static entries do not count towards the LRU cache - // eviction strategy. - count uint16 -} - -// +stateify savable -type neighborCacheMu struct { - neighborCacheRWMutex `state:"nosave"` - - cache map[tcpip.Address]*neighborEntry - dynamic dynamicCacheEntry -} - -// neighborCache maps IP addresses to link addresses. It uses the Least -// Recently Used (LRU) eviction strategy to implement a bounded cache for -// dynamically acquired entries. It contains the state machine and configuration -// for running Neighbor Unreachability Detection (NUD). -// -// There are two types of entries in the neighbor cache: -// 1. Dynamic entries are discovered automatically by neighbor discovery -// protocols (e.g. ARP, NDP). These protocols will attempt to reconfirm -// reachability with the device once the entry's state becomes Stale. -// 2. Static entries are explicitly added by a user and have no expiration. -// Their state is always Static. The amount of static entries stored in the -// cache is unbounded. -// -// +stateify savable -type neighborCache struct { - nic *nic - state *NUDState - linkRes LinkAddressResolver - mu neighborCacheMu -} - -// getOrCreateEntry retrieves a cache entry associated with addr. The -// returned entry is always refreshed in the cache (it is reachable via the -// map, and its place is bumped in LRU). -// -// If a matching entry exists in the cache, it is returned. If no matching -// entry exists and the cache is full, an existing entry is evicted via LRU, -// reset to state incomplete, and returned. If no matching entry exists and the -// cache is not full, a new entry with state incomplete is allocated and -// returned. -func (n *neighborCache) getOrCreateEntry(remoteAddr tcpip.Address) *neighborEntry { - n.mu.Lock() - defer n.mu.Unlock() - - if entry, ok := n.mu.cache[remoteAddr]; ok { - entry.mu.RLock() - if entry.mu.neigh.State != Static { - n.mu.dynamic.lru.Remove(entry) - n.mu.dynamic.lru.PushFront(entry) - } - entry.mu.RUnlock() - return entry - } - - // The entry that needs to be created must be dynamic since all static - // entries are directly added to the cache via addStaticEntry. - entry := newNeighborEntry(n, remoteAddr, n.state) - if n.mu.dynamic.count == NeighborCacheSize { - e := n.mu.dynamic.lru.Back() - e.mu.Lock() - - delete(n.mu.cache, e.mu.neigh.Addr) - n.mu.dynamic.lru.Remove(e) - n.mu.dynamic.count-- - - e.removeLocked() - e.mu.Unlock() - } - n.mu.cache[remoteAddr] = entry - n.mu.dynamic.lru.PushFront(entry) - n.mu.dynamic.count++ - return entry -} - -// entry looks up neighbor information matching the remote address, and returns -// it if readily available. -// -// Returns ErrWouldBlock if the link address is not readily available, along -// with a notification channel for the caller to block on. Triggers address -// resolution asynchronously. -// -// If onResolve is provided, it will be called either immediately, if resolution -// is not required, or when address resolution is complete, with the resolved -// link address and whether resolution succeeded. After any callbacks have been -// called, the returned notification channel is closed. -// -// NB: if a callback is provided, it should not call into the neighbor cache. -// -// If specified, the local address must be an address local to the interface the -// neighbor cache belongs to. The local address is the source address of a -// packet prompting NUD/link address resolution. -func (n *neighborCache) entry(remoteAddr, localAddr tcpip.Address, onResolve func(LinkResolutionResult)) (*neighborEntry, <-chan struct{}, tcpip.Error) { - entry := n.getOrCreateEntry(remoteAddr) - entry.mu.Lock() - defer entry.mu.Unlock() - - switch s := entry.mu.neigh.State; s { - case Stale: - entry.handlePacketQueuedLocked(localAddr) - fallthrough - case Reachable, Static, Delay, Probe: - // As per RFC 4861 section 7.3.3: - // "Neighbor Unreachability Detection operates in parallel with the sending - // of packets to a neighbor. While reasserting a neighbor's reachability, - // a node continues sending packets to that neighbor using the cached - // link-layer address." - if onResolve != nil { - onResolve(LinkResolutionResult{LinkAddress: entry.mu.neigh.LinkAddr, Err: nil}) - } - return entry, nil, nil - case Unknown, Incomplete, Unreachable: - if onResolve != nil { - entry.mu.onResolve = append(entry.mu.onResolve, onResolve) - } - if entry.mu.done == nil { - // Address resolution needs to be initiated. - entry.mu.done = make(chan struct{}) - } - entry.handlePacketQueuedLocked(localAddr) - return entry, entry.mu.done, &tcpip.ErrWouldBlock{} - default: - panic(fmt.Sprintf("Invalid cache entry state: %s", s)) - } -} - -// entries returns all entries in the neighbor cache. -func (n *neighborCache) entries() []NeighborEntry { - n.mu.RLock() - defer n.mu.RUnlock() - - entries := make([]NeighborEntry, 0, len(n.mu.cache)) - for _, entry := range n.mu.cache { - entry.mu.RLock() - entries = append(entries, entry.mu.neigh) - entry.mu.RUnlock() - } - return entries -} - -// addStaticEntry adds a static entry to the neighbor cache, mapping an IP -// address to a link address. If a dynamic entry exists in the neighbor cache -// with the same address, it will be replaced with this static entry. If a -// static entry exists with the same address but different link address, it -// will be updated with the new link address. If a static entry exists with the -// same address and link address, nothing will happen. -func (n *neighborCache) addStaticEntry(addr tcpip.Address, linkAddr tcpip.LinkAddress) { - n.mu.Lock() - defer n.mu.Unlock() - - if entry, ok := n.mu.cache[addr]; ok { - entry.mu.Lock() - if entry.mu.neigh.State != Static { - // Dynamic entry found with the same address. - n.mu.dynamic.lru.Remove(entry) - n.mu.dynamic.count-- - } else if entry.mu.neigh.LinkAddr == linkAddr { - // Static entry found with the same address and link address. - entry.mu.Unlock() - return - } else { - // Static entry found with the same address but different link address. - entry.mu.neigh.LinkAddr = linkAddr - entry.dispatchChangeEventLocked() - entry.mu.Unlock() - return - } - - entry.removeLocked() - entry.mu.Unlock() - } - - entry := newStaticNeighborEntry(n, addr, linkAddr, n.state) - n.mu.cache[addr] = entry - - entry.mu.Lock() - defer entry.mu.Unlock() - entry.dispatchAddEventLocked() -} - -// removeEntry removes a dynamic or static entry by address from the neighbor -// cache. Returns true if the entry was found and deleted. -func (n *neighborCache) removeEntry(addr tcpip.Address) bool { - n.mu.Lock() - defer n.mu.Unlock() - - entry, ok := n.mu.cache[addr] - if !ok { - return false - } - - entry.mu.Lock() - defer entry.mu.Unlock() - - if entry.mu.neigh.State != Static { - n.mu.dynamic.lru.Remove(entry) - n.mu.dynamic.count-- - } - - entry.removeLocked() - delete(n.mu.cache, entry.mu.neigh.Addr) - return true -} - -// clear removes all dynamic and static entries from the neighbor cache. -func (n *neighborCache) clear() { - n.mu.Lock() - defer n.mu.Unlock() - - for _, entry := range n.mu.cache { - entry.mu.Lock() - entry.removeLocked() - entry.mu.Unlock() - } - - n.mu.dynamic.lru = neighborEntryList{} - clear(n.mu.cache) - n.mu.dynamic.count = 0 -} - -// config returns the NUD configuration. -func (n *neighborCache) config() NUDConfigurations { - return n.state.Config() -} - -// setConfig changes the NUD configuration. -// -// If config contains invalid NUD configuration values, it will be fixed to -// use default values for the erroneous values. -func (n *neighborCache) setConfig(config NUDConfigurations) { - config.resetInvalidFields() - n.state.SetConfig(config) -} - -// handleProbe handles a neighbor probe as defined by RFC 4861 section 7.2.3. -// -// Validation of the probe is expected to be handled by the caller. -func (n *neighborCache) handleProbe(remoteAddr tcpip.Address, remoteLinkAddr tcpip.LinkAddress) { - entry := n.getOrCreateEntry(remoteAddr) - entry.mu.Lock() - entry.handleProbeLocked(remoteLinkAddr) - entry.mu.Unlock() -} - -// handleConfirmation handles a neighbor confirmation as defined by -// RFC 4861 section 7.2.5. -// -// Validation of the confirmation is expected to be handled by the caller. -func (n *neighborCache) handleConfirmation(addr tcpip.Address, linkAddr tcpip.LinkAddress, flags ReachabilityConfirmationFlags) { - n.mu.RLock() - entry, ok := n.mu.cache[addr] - n.mu.RUnlock() - if ok { - entry.mu.Lock() - entry.handleConfirmationLocked(linkAddr, flags) - entry.mu.Unlock() - } else { - // The confirmation SHOULD be silently discarded if the recipient did not - // initiate any communication with the target. This is indicated if there is - // no matching entry for the remote address. - n.nic.stats.neighbor.droppedConfirmationForNoninitiatedNeighbor.Increment() - } -} - -func (n *neighborCache) init(nic *nic, r LinkAddressResolver) { - *n = neighborCache{ - nic: nic, - state: NewNUDState(nic.stack.nudConfigs, nic.stack.clock, nic.stack.insecureRNG), - linkRes: r, - } - n.mu.Lock() - n.mu.cache = make(map[tcpip.Address]*neighborEntry, NeighborCacheSize) - n.mu.Unlock() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighbor_cache_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighbor_cache_mutex.go deleted file mode 100644 index 0de0fea650..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighbor_cache_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type neighborCacheRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var neighborCachelockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type neighborCachelockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *neighborCacheRWMutex) Lock() { - locking.AddGLock(neighborCacheprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *neighborCacheRWMutex) NestedLock(i neighborCachelockNameIndex) { - locking.AddGLock(neighborCacheprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *neighborCacheRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(neighborCacheprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *neighborCacheRWMutex) NestedUnlock(i neighborCachelockNameIndex) { - m.mu.Unlock() - locking.DelGLock(neighborCacheprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *neighborCacheRWMutex) RLock() { - locking.AddGLock(neighborCacheprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *neighborCacheRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(neighborCacheprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *neighborCacheRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *neighborCacheRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *neighborCacheRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var neighborCacheprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func neighborCacheinitLockNames() {} - -func init() { - neighborCacheinitLockNames() - neighborCacheprefixIndex = locking.NewMutexClass(reflect.TypeOf(neighborCacheRWMutex{}), neighborCachelockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighbor_entry.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighbor_entry.go deleted file mode 100644 index baa62f112a..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighbor_entry.go +++ /dev/null @@ -1,646 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "fmt" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" -) - -const ( - // immediateDuration is a duration of zero for scheduling work that needs to - // be done immediately but asynchronously to avoid deadlock. - immediateDuration time.Duration = 0 -) - -// NeighborEntry describes a neighboring device in the local network. -type NeighborEntry struct { - Addr tcpip.Address - LinkAddr tcpip.LinkAddress - State NeighborState - UpdatedAt tcpip.MonotonicTime -} - -// NeighborState defines the state of a NeighborEntry within the Neighbor -// Unreachability Detection state machine, as per RFC 4861 section 7.3.2 and -// RFC 7048. -type NeighborState uint8 - -const ( - // Unknown means reachability has not been verified yet. This is the initial - // state of entries that have been created automatically by the Neighbor - // Unreachability Detection state machine. - Unknown NeighborState = iota - // Incomplete means that there is an outstanding request to resolve the - // address. - Incomplete - // Reachable means the path to the neighbor is functioning properly for both - // receive and transmit paths. - Reachable - // Stale means reachability to the neighbor is unknown, but packets are still - // able to be transmitted to the possibly stale link address. - Stale - // Delay means reachability to the neighbor is unknown and pending - // confirmation from an upper-level protocol like TCP, but packets are still - // able to be transmitted to the possibly stale link address. - Delay - // Probe means a reachability confirmation is actively being sought by - // periodically retransmitting reachability probes until a reachability - // confirmation is received, or until the maximum number of probes has been - // sent. - Probe - // Static describes entries that have been explicitly added by the user. They - // do not expire and are not deleted until explicitly removed. - Static - // Unreachable means reachability confirmation failed; the maximum number of - // reachability probes has been sent and no replies have been received. - // - // TODO(gvisor.dev/issue/5472): Add the following sentence when we implement - // RFC 7048: "Packets continue to be sent to the neighbor while - // re-attempting to resolve the address." - Unreachable -) - -type timer struct { - // done indicates to the timer that the timer was stopped. - done *bool - - timer tcpip.Timer -} - -// neighborEntry implements a neighbor entry's individual node behavior, as per -// RFC 4861 section 7.3.3. Neighbor Unreachability Detection operates in -// parallel with the sending of packets to a neighbor, necessitating the -// entry's lock to be acquired for all operations. -type neighborEntry struct { - neighborEntryEntry - - cache *neighborCache - - // nudState points to the Neighbor Unreachability Detection configuration. - nudState *NUDState - - mu struct { - neighborEntryRWMutex - - neigh NeighborEntry - - // done is closed when address resolution is complete. It is nil iff s is - // incomplete and resolution is not yet in progress. - done chan struct{} - - // onResolve is called with the result of address resolution. - onResolve []func(LinkResolutionResult) - - isRouter bool - - timer timer - } -} - -// newNeighborEntry creates a neighbor cache entry starting at the default -// state, Unknown. Transition out of Unknown by calling either -// `handlePacketQueuedLocked` or `handleProbeLocked` on the newly created -// neighborEntry. -func newNeighborEntry(cache *neighborCache, remoteAddr tcpip.Address, nudState *NUDState) *neighborEntry { - n := &neighborEntry{ - cache: cache, - nudState: nudState, - } - n.mu.Lock() - n.mu.neigh = NeighborEntry{ - Addr: remoteAddr, - State: Unknown, - } - n.mu.Unlock() - return n - -} - -// newStaticNeighborEntry creates a neighbor cache entry starting at the -// Static state. The entry can only transition out of Static by directly -// calling `setStateLocked`. -func newStaticNeighborEntry(cache *neighborCache, addr tcpip.Address, linkAddr tcpip.LinkAddress, state *NUDState) *neighborEntry { - entry := NeighborEntry{ - Addr: addr, - LinkAddr: linkAddr, - State: Static, - UpdatedAt: cache.nic.stack.clock.NowMonotonic(), - } - n := &neighborEntry{ - cache: cache, - nudState: state, - } - n.mu.Lock() - n.mu.neigh = entry - n.mu.Unlock() - return n -} - -// notifyCompletionLocked notifies those waiting for address resolution, with -// the link address if resolution completed successfully. -// -// Precondition: e.mu MUST be locked. -func (e *neighborEntry) notifyCompletionLocked(err tcpip.Error) { - res := LinkResolutionResult{LinkAddress: e.mu.neigh.LinkAddr, Err: err} - for _, callback := range e.mu.onResolve { - callback(res) - } - e.mu.onResolve = nil - if ch := e.mu.done; ch != nil { - close(ch) - e.mu.done = nil - // Dequeue the pending packets asynchronously to not hold up the current - // goroutine as writing packets may be a costly operation. - // - // At the time of writing, when writing packets, a neighbor's link address - // is resolved (which ends up obtaining the entry's lock) while holding the - // link resolution queue's lock. Dequeuing packets asynchronously avoids a - // lock ordering violation. - // - // NB: this is equivalent to spawning a goroutine directly using the go - // keyword but allows tests that use manual clocks to deterministically - // wait for this work to complete. - e.cache.nic.stack.clock.AfterFunc(0, func() { - e.cache.nic.linkResQueue.dequeue(ch, e.mu.neigh.LinkAddr, err) - }) - } -} - -// dispatchAddEventLocked signals to stack's NUD Dispatcher that the entry has -// been added. -// -// Precondition: e.mu MUST be locked. -func (e *neighborEntry) dispatchAddEventLocked() { - if nudDisp := e.cache.nic.stack.nudDisp; nudDisp != nil { - nudDisp.OnNeighborAdded(e.cache.nic.id, e.mu.neigh) - } -} - -// dispatchChangeEventLocked signals to stack's NUD Dispatcher that the entry -// has changed state or link-layer address. -// -// Precondition: e.mu MUST be locked. -func (e *neighborEntry) dispatchChangeEventLocked() { - if nudDisp := e.cache.nic.stack.nudDisp; nudDisp != nil { - nudDisp.OnNeighborChanged(e.cache.nic.id, e.mu.neigh) - } -} - -// dispatchRemoveEventLocked signals to stack's NUD Dispatcher that the entry -// has been removed. -// -// Precondition: e.mu MUST be locked. -func (e *neighborEntry) dispatchRemoveEventLocked() { - if nudDisp := e.cache.nic.stack.nudDisp; nudDisp != nil { - nudDisp.OnNeighborRemoved(e.cache.nic.id, e.mu.neigh) - } -} - -// cancelTimerLocked cancels the currently scheduled action, if there is one. -// Entries in Unknown, Stale, or Static state do not have a scheduled action. -// -// Precondition: e.mu MUST be locked. -func (e *neighborEntry) cancelTimerLocked() { - if e.mu.timer.timer != nil { - e.mu.timer.timer.Stop() - *e.mu.timer.done = true - - e.mu.timer = timer{} - } -} - -// removeLocked prepares the entry for removal. -// -// Precondition: e.mu MUST be locked. -func (e *neighborEntry) removeLocked() { - e.mu.neigh.UpdatedAt = e.cache.nic.stack.clock.NowMonotonic() - e.dispatchRemoveEventLocked() - // Set state to unknown to invalidate this entry if it's cached in a Route. - e.setStateLocked(Unknown) - e.cancelTimerLocked() - // TODO(https://gvisor.dev/issues/5583): test the case where this function is - // called during resolution; that can happen in at least these scenarios: - // - // - manual address removal during resolution - // - // - neighbor cache eviction during resolution - e.notifyCompletionLocked(&tcpip.ErrAborted{}) -} - -// setStateLocked transitions the entry to the specified state immediately. -// -// Follows the logic defined in RFC 4861 section 7.3.3. -// -// Precondition: e.mu MUST be locked. -func (e *neighborEntry) setStateLocked(next NeighborState) { - e.cancelTimerLocked() - - prev := e.mu.neigh.State - e.mu.neigh.State = next - e.mu.neigh.UpdatedAt = e.cache.nic.stack.clock.NowMonotonic() - config := e.nudState.Config() - - switch next { - case Incomplete: - panic(fmt.Sprintf("should never transition to Incomplete with setStateLocked; neigh = %#v, prev state = %s", e.mu.neigh, prev)) - - case Reachable: - // Protected by e.mu. - done := false - - e.mu.timer = timer{ - done: &done, - timer: e.cache.nic.stack.Clock().AfterFunc(e.nudState.ReachableTime(), func() { - e.mu.Lock() - defer e.mu.Unlock() - - if done { - // The timer was stopped because the entry changed state. - return - } - - e.setStateLocked(Stale) - e.dispatchChangeEventLocked() - }), - } - - case Delay: - // Protected by e.mu. - done := false - - e.mu.timer = timer{ - done: &done, - timer: e.cache.nic.stack.Clock().AfterFunc(config.DelayFirstProbeTime, func() { - e.mu.Lock() - defer e.mu.Unlock() - - if done { - // The timer was stopped because the entry changed state. - return - } - - e.setStateLocked(Probe) - e.dispatchChangeEventLocked() - }), - } - - case Probe: - // Protected by e.mu. - done := false - - remaining := config.MaxUnicastProbes - addr := e.mu.neigh.Addr - linkAddr := e.mu.neigh.LinkAddr - - // Send a probe in another gorountine to free this thread of execution - // for finishing the state transition. This is necessary to escape the - // currently held lock so we can send the probe message without holding - // a shared lock. - e.mu.timer = timer{ - done: &done, - timer: e.cache.nic.stack.Clock().AfterFunc(immediateDuration, func() { - var err tcpip.Error = &tcpip.ErrTimeout{} - if remaining != 0 { - err = e.cache.linkRes.LinkAddressRequest(addr, tcpip.Address{} /* localAddr */, linkAddr) - } - - e.mu.Lock() - defer e.mu.Unlock() - - if done { - // The timer was stopped because the entry changed state. - return - } - - if err != nil { - e.setStateLocked(Unreachable) - e.notifyCompletionLocked(err) - e.dispatchChangeEventLocked() - return - } - - remaining-- - e.mu.timer.timer.Reset(config.RetransmitTimer) - }), - } - - case Unreachable: - - case Unknown, Stale, Static: - // Do nothing - - default: - panic(fmt.Sprintf("Invalid state transition from %q to %q", prev, next)) - } -} - -// handlePacketQueuedLocked advances the state machine according to a packet -// being queued for outgoing transmission. -// -// Follows the logic defined in RFC 4861 section 7.3.3. -// -// Precondition: e.mu MUST be locked. -func (e *neighborEntry) handlePacketQueuedLocked(localAddr tcpip.Address) { - switch e.mu.neigh.State { - case Unknown, Unreachable: - prev := e.mu.neigh.State - e.mu.neigh.State = Incomplete - e.mu.neigh.UpdatedAt = e.cache.nic.stack.clock.NowMonotonic() - - switch prev { - case Unknown: - e.dispatchAddEventLocked() - case Unreachable: - e.dispatchChangeEventLocked() - e.cache.nic.stats.neighbor.unreachableEntryLookups.Increment() - } - - config := e.nudState.Config() - - // Protected by e.mu. - done := false - - remaining := config.MaxMulticastProbes - addr := e.mu.neigh.Addr - - // Send a probe in another gorountine to free this thread of execution - // for finishing the state transition. This is necessary to escape the - // currently held lock so we can send the probe message without holding - // a shared lock. - e.mu.timer = timer{ - done: &done, - timer: e.cache.nic.stack.Clock().AfterFunc(immediateDuration, func() { - var err tcpip.Error = &tcpip.ErrTimeout{} - if remaining != 0 { - // As per RFC 4861 section 7.2.2: - // - // If the source address of the packet prompting the solicitation is - // the same as one of the addresses assigned to the outgoing interface, - // that address SHOULD be placed in the IP Source Address of the - // outgoing solicitation. - // - err = e.cache.linkRes.LinkAddressRequest(addr, localAddr, "" /* linkAddr */) - } - - e.mu.Lock() - defer e.mu.Unlock() - - if done { - // The timer was stopped because the entry changed state. - return - } - - if err != nil { - e.setStateLocked(Unreachable) - e.notifyCompletionLocked(err) - e.dispatchChangeEventLocked() - return - } - - remaining-- - e.mu.timer.timer.Reset(config.RetransmitTimer) - }), - } - - case Stale: - e.setStateLocked(Delay) - e.dispatchChangeEventLocked() - - case Incomplete, Reachable, Delay, Probe, Static: - // Do nothing - default: - panic(fmt.Sprintf("Invalid cache entry state: %s", e.mu.neigh.State)) - } -} - -// handleProbeLocked processes an incoming neighbor probe (e.g. ARP request or -// Neighbor Solicitation for ARP or NDP, respectively). -// -// Follows the logic defined in RFC 4861 section 7.2.3. -// -// Precondition: e.mu MUST be locked. -func (e *neighborEntry) handleProbeLocked(remoteLinkAddr tcpip.LinkAddress) { - // Probes MUST be silently discarded if the target address is tentative, does - // not exist, or not bound to the NIC as per RFC 4861 section 7.2.3. These - // checks MUST be done by the NetworkEndpoint. - - switch e.mu.neigh.State { - case Unknown: - e.mu.neigh.LinkAddr = remoteLinkAddr - e.setStateLocked(Stale) - e.dispatchAddEventLocked() - - case Incomplete: - // "If an entry already exists, and the cached link-layer address - // differs from the one in the received Source Link-Layer option, the - // cached address should be replaced by the received address, and the - // entry's reachability state MUST be set to STALE." - // - RFC 4861 section 7.2.3 - e.mu.neigh.LinkAddr = remoteLinkAddr - e.setStateLocked(Stale) - e.notifyCompletionLocked(nil) - e.dispatchChangeEventLocked() - - case Reachable, Delay, Probe: - if e.mu.neigh.LinkAddr != remoteLinkAddr { - e.mu.neigh.LinkAddr = remoteLinkAddr - e.setStateLocked(Stale) - e.dispatchChangeEventLocked() - } - - case Stale: - if e.mu.neigh.LinkAddr != remoteLinkAddr { - e.mu.neigh.LinkAddr = remoteLinkAddr - e.dispatchChangeEventLocked() - } - - case Unreachable: - // TODO(gvisor.dev/issue/5472): Do not change the entry if the link - // address is the same, as per RFC 7048. - e.mu.neigh.LinkAddr = remoteLinkAddr - e.setStateLocked(Stale) - e.dispatchChangeEventLocked() - - case Static: - // Do nothing - - default: - panic(fmt.Sprintf("Invalid cache entry state: %s", e.mu.neigh.State)) - } -} - -// handleConfirmationLocked processes an incoming neighbor confirmation -// (e.g. ARP reply or Neighbor Advertisement for ARP or NDP, respectively). -// -// Follows the state machine defined by RFC 4861 section 7.2.5. -// -// TODO(gvisor.dev/issue/2277): To protect against ARP poisoning and other -// attacks against NDP functions, Secure Neighbor Discovery (SEND) Protocol -// should be deployed where preventing access to the broadcast segment might -// not be possible. SEND uses RSA key pairs to produce Cryptographically -// Generated Addresses (CGA), as defined in RFC 3972. This ensures that the -// claimed source of an NDP message is the owner of the claimed address. -// -// Precondition: e.mu MUST be locked. -func (e *neighborEntry) handleConfirmationLocked(linkAddr tcpip.LinkAddress, flags ReachabilityConfirmationFlags) { - switch e.mu.neigh.State { - case Incomplete: - if len(linkAddr) == 0 { - // "If the link layer has addresses and no Target Link-Layer Address - // option is included, the receiving node SHOULD silently discard the - // received advertisement." - RFC 4861 section 7.2.5 - e.cache.nic.stats.neighbor.droppedInvalidLinkAddressConfirmations.Increment() - break - } - - e.mu.neigh.LinkAddr = linkAddr - if flags.Solicited { - e.setStateLocked(Reachable) - } else { - e.setStateLocked(Stale) - } - e.dispatchChangeEventLocked() - e.mu.isRouter = flags.IsRouter - e.notifyCompletionLocked(nil) - - // "Note that the Override flag is ignored if the entry is in the - // INCOMPLETE state." - RFC 4861 section 7.2.5 - - case Reachable, Stale, Delay, Probe: - isLinkAddrDifferent := len(linkAddr) != 0 && e.mu.neigh.LinkAddr != linkAddr - - if isLinkAddrDifferent { - if !flags.Override { - if e.mu.neigh.State == Reachable { - e.setStateLocked(Stale) - e.dispatchChangeEventLocked() - } - break - } - - e.mu.neigh.LinkAddr = linkAddr - - if !flags.Solicited { - if e.mu.neigh.State != Stale { - e.setStateLocked(Stale) - e.dispatchChangeEventLocked() - } else { - // Notify the LinkAddr change, even though NUD state hasn't changed. - e.dispatchChangeEventLocked() - } - break - } - } - - if flags.Solicited && (flags.Override || !isLinkAddrDifferent) { - wasReachable := e.mu.neigh.State == Reachable - // Set state to Reachable again to refresh timers. - e.setStateLocked(Reachable) - e.notifyCompletionLocked(nil) - if !wasReachable { - e.dispatchChangeEventLocked() - } - } - - if e.mu.isRouter && !flags.IsRouter && header.IsV6UnicastAddress(e.mu.neigh.Addr) { - // "In those cases where the IsRouter flag changes from TRUE to FALSE as - // a result of this update, the node MUST remove that router from the - // Default Router List and update the Destination Cache entries for all - // destinations using that neighbor as a router as specified in Section - // 7.3.3. This is needed to detect when a node that is used as a router - // stops forwarding packets due to being configured as a host." - // - RFC 4861 section 7.2.5 - // - // TODO(gvisor.dev/issue/4085): Remove the special casing we do for IPv6 - // here. - ep := e.cache.nic.getNetworkEndpoint(header.IPv6ProtocolNumber) - if ep == nil { - panic(fmt.Sprintf("have a neighbor entry for an IPv6 router but no IPv6 network endpoint")) - } - - if ndpEP, ok := ep.(NDPEndpoint); ok { - ndpEP.InvalidateDefaultRouter(e.mu.neigh.Addr) - } - } - e.mu.isRouter = flags.IsRouter - - case Unknown, Unreachable, Static: - // Do nothing - - default: - panic(fmt.Sprintf("Invalid cache entry state: %s", e.mu.neigh.State)) - } -} - -// handleUpperLevelConfirmation processes an incoming upper-level protocol -// (e.g. TCP acknowledgements) reachability confirmation. -func (e *neighborEntry) handleUpperLevelConfirmation() { - tryHandleConfirmation := func() bool { - switch e.mu.neigh.State { - case Stale, Delay, Probe: - return true - case Reachable: - // Avoid setStateLocked; Timer.Reset is cheaper. - // - // Note that setting the timer does not need to be protected by the - // entry's write lock since we do not modify the timer pointer, but the - // time the timer should fire. The timer should have internal locks to - // synchronize timer resets changes with the clock. - e.mu.timer.timer.Reset(e.nudState.ReachableTime()) - return false - case Unknown, Incomplete, Unreachable, Static: - // Do nothing - return false - default: - panic(fmt.Sprintf("Invalid cache entry state: %s", e.mu.neigh.State)) - } - } - - e.mu.RLock() - needsTransition := tryHandleConfirmation() - e.mu.RUnlock() - if !needsTransition { - return - } - - // We need to transition the neighbor to Reachable so take the write lock and - // perform the transition, but only if we still need the transition since the - // state could have changed since we dropped the read lock above. - e.mu.Lock() - defer e.mu.Unlock() - if needsTransition := tryHandleConfirmation(); needsTransition { - e.setStateLocked(Reachable) - e.dispatchChangeEventLocked() - } -} - -// getRemoteLinkAddress returns the entry's link address and whether that link -// address is valid. -func (e *neighborEntry) getRemoteLinkAddress() (tcpip.LinkAddress, bool) { - e.mu.RLock() - defer e.mu.RUnlock() - switch e.mu.neigh.State { - case Reachable, Static, Delay, Probe: - return e.mu.neigh.LinkAddr, true - case Unknown, Incomplete, Unreachable, Stale: - return "", false - default: - panic(fmt.Sprintf("invalid state for neighbor entry %v: %v", e.mu.neigh, e.mu.neigh.State)) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighbor_entry_list.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighbor_entry_list.go deleted file mode 100644 index 3973d7c4c9..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighbor_entry_list.go +++ /dev/null @@ -1,239 +0,0 @@ -package stack - -// ElementMapper provides an identity mapping by default. -// -// This can be replaced to provide a struct that maps elements to linker -// objects, if they are not the same. An ElementMapper is not typically -// required if: Linker is left as is, Element is left as is, or Linker and -// Element are the same type. -type neighborEntryElementMapper struct{} - -// linkerFor maps an Element to a Linker. -// -// This default implementation should be inlined. -// -//go:nosplit -func (neighborEntryElementMapper) linkerFor(elem *neighborEntry) *neighborEntry { return elem } - -// List is an intrusive list. Entries can be added to or removed from the list -// in O(1) time and with no additional memory allocations. -// -// The zero value for List is an empty list ready to use. -// -// To iterate over a list (where l is a List): -// -// for e := l.Front(); e != nil; e = e.Next() { -// // do something with e. -// } -// -// +stateify savable -type neighborEntryList struct { - head *neighborEntry - tail *neighborEntry -} - -// Reset resets list l to the empty state. -func (l *neighborEntryList) Reset() { - l.head = nil - l.tail = nil -} - -// Empty returns true iff the list is empty. -// -//go:nosplit -func (l *neighborEntryList) Empty() bool { - return l.head == nil -} - -// Front returns the first element of list l or nil. -// -//go:nosplit -func (l *neighborEntryList) Front() *neighborEntry { - return l.head -} - -// Back returns the last element of list l or nil. -// -//go:nosplit -func (l *neighborEntryList) Back() *neighborEntry { - return l.tail -} - -// Len returns the number of elements in the list. -// -// NOTE: This is an O(n) operation. -// -//go:nosplit -func (l *neighborEntryList) Len() (count int) { - for e := l.Front(); e != nil; e = (neighborEntryElementMapper{}.linkerFor(e)).Next() { - count++ - } - return count -} - -// PushFront inserts the element e at the front of list l. -// -//go:nosplit -func (l *neighborEntryList) PushFront(e *neighborEntry) { - linker := neighborEntryElementMapper{}.linkerFor(e) - linker.SetNext(l.head) - linker.SetPrev(nil) - if l.head != nil { - neighborEntryElementMapper{}.linkerFor(l.head).SetPrev(e) - } else { - l.tail = e - } - - l.head = e -} - -// PushFrontList inserts list m at the start of list l, emptying m. -// -//go:nosplit -func (l *neighborEntryList) PushFrontList(m *neighborEntryList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - neighborEntryElementMapper{}.linkerFor(l.head).SetPrev(m.tail) - neighborEntryElementMapper{}.linkerFor(m.tail).SetNext(l.head) - - l.head = m.head - } - m.head = nil - m.tail = nil -} - -// PushBack inserts the element e at the back of list l. -// -//go:nosplit -func (l *neighborEntryList) PushBack(e *neighborEntry) { - linker := neighborEntryElementMapper{}.linkerFor(e) - linker.SetNext(nil) - linker.SetPrev(l.tail) - if l.tail != nil { - neighborEntryElementMapper{}.linkerFor(l.tail).SetNext(e) - } else { - l.head = e - } - - l.tail = e -} - -// PushBackList inserts list m at the end of list l, emptying m. -// -//go:nosplit -func (l *neighborEntryList) PushBackList(m *neighborEntryList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - neighborEntryElementMapper{}.linkerFor(l.tail).SetNext(m.head) - neighborEntryElementMapper{}.linkerFor(m.head).SetPrev(l.tail) - - l.tail = m.tail - } - m.head = nil - m.tail = nil -} - -// InsertAfter inserts e after b. -// -//go:nosplit -func (l *neighborEntryList) InsertAfter(b, e *neighborEntry) { - bLinker := neighborEntryElementMapper{}.linkerFor(b) - eLinker := neighborEntryElementMapper{}.linkerFor(e) - - a := bLinker.Next() - - eLinker.SetNext(a) - eLinker.SetPrev(b) - bLinker.SetNext(e) - - if a != nil { - neighborEntryElementMapper{}.linkerFor(a).SetPrev(e) - } else { - l.tail = e - } -} - -// InsertBefore inserts e before a. -// -//go:nosplit -func (l *neighborEntryList) InsertBefore(a, e *neighborEntry) { - aLinker := neighborEntryElementMapper{}.linkerFor(a) - eLinker := neighborEntryElementMapper{}.linkerFor(e) - - b := aLinker.Prev() - eLinker.SetNext(a) - eLinker.SetPrev(b) - aLinker.SetPrev(e) - - if b != nil { - neighborEntryElementMapper{}.linkerFor(b).SetNext(e) - } else { - l.head = e - } -} - -// Remove removes e from l. -// -//go:nosplit -func (l *neighborEntryList) Remove(e *neighborEntry) { - linker := neighborEntryElementMapper{}.linkerFor(e) - prev := linker.Prev() - next := linker.Next() - - if prev != nil { - neighborEntryElementMapper{}.linkerFor(prev).SetNext(next) - } else if l.head == e { - l.head = next - } - - if next != nil { - neighborEntryElementMapper{}.linkerFor(next).SetPrev(prev) - } else if l.tail == e { - l.tail = prev - } - - linker.SetNext(nil) - linker.SetPrev(nil) -} - -// Entry is a default implementation of Linker. Users can add anonymous fields -// of this type to their structs to make them automatically implement the -// methods needed by List. -// -// +stateify savable -type neighborEntryEntry struct { - next *neighborEntry - prev *neighborEntry -} - -// Next returns the entry that follows e in the list. -// -//go:nosplit -func (e *neighborEntryEntry) Next() *neighborEntry { - return e.next -} - -// Prev returns the entry that precedes e in the list. -// -//go:nosplit -func (e *neighborEntryEntry) Prev() *neighborEntry { - return e.prev -} - -// SetNext assigns 'entry' as the entry that follows e in the list. -// -//go:nosplit -func (e *neighborEntryEntry) SetNext(elem *neighborEntry) { - e.next = elem -} - -// SetPrev assigns 'entry' as the entry that precedes e in the list. -// -//go:nosplit -func (e *neighborEntryEntry) SetPrev(elem *neighborEntry) { - e.prev = elem -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighbor_entry_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighbor_entry_mutex.go deleted file mode 100644 index c6b08eb823..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighbor_entry_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type neighborEntryRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var neighborEntrylockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type neighborEntrylockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *neighborEntryRWMutex) Lock() { - locking.AddGLock(neighborEntryprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *neighborEntryRWMutex) NestedLock(i neighborEntrylockNameIndex) { - locking.AddGLock(neighborEntryprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *neighborEntryRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(neighborEntryprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *neighborEntryRWMutex) NestedUnlock(i neighborEntrylockNameIndex) { - m.mu.Unlock() - locking.DelGLock(neighborEntryprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *neighborEntryRWMutex) RLock() { - locking.AddGLock(neighborEntryprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *neighborEntryRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(neighborEntryprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *neighborEntryRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *neighborEntryRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *neighborEntryRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var neighborEntryprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func neighborEntryinitLockNames() {} - -func init() { - neighborEntryinitLockNames() - neighborEntryprefixIndex = locking.NewMutexClass(reflect.TypeOf(neighborEntryRWMutex{}), neighborEntrylockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighborstate_string.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighborstate_string.go deleted file mode 100644 index cc5060e144..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/neighborstate_string.go +++ /dev/null @@ -1,44 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Code generated by "stringer -type NeighborState"; DO NOT EDIT. - -package stack - -import "strconv" - -func _() { - // An "invalid array index" compiler error signifies that the constant values have changed. - // Re-run the stringer command to generate them again. - var x [1]struct{} - _ = x[Unknown-0] - _ = x[Incomplete-1] - _ = x[Reachable-2] - _ = x[Stale-3] - _ = x[Delay-4] - _ = x[Probe-5] - _ = x[Static-6] - _ = x[Unreachable-7] -} - -const _NeighborState_name = "UnknownIncompleteReachableStaleDelayProbeStaticUnreachable" - -var _NeighborState_index = [...]uint8{0, 7, 17, 26, 31, 36, 41, 47, 58} - -func (i NeighborState) String() string { - if i >= NeighborState(len(_NeighborState_index)-1) { - return "NeighborState(" + strconv.FormatInt(int64(i), 10) + ")" - } - return _NeighborState_name[_NeighborState_index[i]:_NeighborState_index[i+1]] -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/nic.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/nic.go deleted file mode 100644 index 9625f6bb4b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/nic.go +++ /dev/null @@ -1,1104 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "fmt" - "reflect" - - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" -) - -// +stateify savable -type linkResolver struct { - resolver LinkAddressResolver - - neigh neighborCache -} - -var _ NetworkInterface = (*nic)(nil) -var _ NetworkDispatcher = (*nic)(nil) - -// nic represents a "network interface card" to which the networking stack is -// attached. -// -// +stateify savable -type nic struct { - NetworkLinkEndpoint - - stack *Stack - id tcpip.NICID - name string - context NICContext - - stats sharedStats - - // enableDisableMu is used to synchronize attempts to enable/disable the NIC. - // Without this mutex, calls to enable/disable the NIC may interleave and - // leave the NIC in an inconsistent state. - enableDisableMu nicRWMutex `state:"nosave"` - - // The network endpoints themselves may be modified by calling the interface's - // methods, but the map reference and entries must be constant. - networkEndpoints map[tcpip.NetworkProtocolNumber]NetworkEndpoint - linkAddrResolvers map[tcpip.NetworkProtocolNumber]*linkResolver - duplicateAddressDetectors map[tcpip.NetworkProtocolNumber]DuplicateAddressDetector - - // enabled indicates whether the NIC is enabled. - enabled atomicbitops.Bool - - // spoofing indicates whether the NIC is spoofing. - spoofing atomicbitops.Bool - - // promiscuous indicates whether the NIC is promiscuous. - promiscuous atomicbitops.Bool - - // linkResQueue holds packets that are waiting for link resolution to - // complete. - linkResQueue packetsPendingLinkResolution - - // packetEPsMu protects annotated fields below. - packetEPsMu packetEPsRWMutex `state:"nosave"` - - // eps is protected by the mutex, but the values contained in it are not. - // - // +checklocks:packetEPsMu - packetEPs map[tcpip.NetworkProtocolNumber]*packetEndpointList - - qDisc QueueingDiscipline - - // deliverLinkPackets specifies whether this NIC delivers packets to - // packet sockets. It is immutable. - // - // deliverLinkPackets is off by default because some users already - // deliver link packets by explicitly calling nic.DeliverLinkPackets. - deliverLinkPackets bool - - // Primary is the main controlling interface in a bonded setup. - Primary *nic -} - -// makeNICStats initializes the NIC statistics and associates them to the global -// NIC statistics. -func makeNICStats(global tcpip.NICStats) sharedStats { - var stats sharedStats - tcpip.InitStatCounters(reflect.ValueOf(&stats.local).Elem()) - stats.init(&stats.local, &global) - return stats -} - -// +stateify savable -type packetEndpointList struct { - mu packetEndpointListRWMutex `state:"nosave"` - - // eps is protected by mu, but the contained PacketEndpoint values are not. - // - // +checklocks:mu - eps []PacketEndpoint -} - -func (p *packetEndpointList) add(ep PacketEndpoint) { - p.mu.Lock() - defer p.mu.Unlock() - p.eps = append(p.eps, ep) -} - -func (p *packetEndpointList) remove(ep PacketEndpoint) { - p.mu.Lock() - defer p.mu.Unlock() - for i, epOther := range p.eps { - if epOther == ep { - p.eps = append(p.eps[:i], p.eps[i+1:]...) - break - } - } -} - -func (p *packetEndpointList) len() int { - p.mu.RLock() - defer p.mu.RUnlock() - return len(p.eps) -} - -// forEach calls fn with each endpoints in p while holding the read lock on p. -func (p *packetEndpointList) forEach(fn func(PacketEndpoint)) { - p.mu.RLock() - defer p.mu.RUnlock() - for _, ep := range p.eps { - fn(ep) - } -} - -var _ QueueingDiscipline = (*delegatingQueueingDiscipline)(nil) - -// +stateify savable -type delegatingQueueingDiscipline struct { - LinkWriter -} - -func (*delegatingQueueingDiscipline) Close() {} - -// WritePacket passes the packet through to the underlying LinkWriter's WritePackets. -func (qDisc *delegatingQueueingDiscipline) WritePacket(pkt *PacketBuffer) tcpip.Error { - var pkts PacketBufferList - pkts.PushBack(pkt) - _, err := qDisc.LinkWriter.WritePackets(pkts) - return err -} - -// newNIC returns a new NIC using the default NDP configurations from stack. -func newNIC(stack *Stack, id tcpip.NICID, ep LinkEndpoint, opts NICOptions) *nic { - // TODO(b/141011931): Validate a LinkEndpoint (ep) is valid. For - // example, make sure that the link address it provides is a valid - // unicast ethernet address. - - // If no queueing discipline was specified provide a stub implementation that - // just delegates to the lower link endpoint. - qDisc := opts.QDisc - if qDisc == nil { - qDisc = &delegatingQueueingDiscipline{LinkWriter: ep} - } - - // TODO(b/143357959): RFC 8200 section 5 requires that IPv6 endpoints - // observe an MTU of at least 1280 bytes. Ensure that this requirement - // of IPv6 is supported on this endpoint's LinkEndpoint. - nic := &nic{ - NetworkLinkEndpoint: ep, - stack: stack, - id: id, - name: opts.Name, - context: opts.Context, - stats: makeNICStats(stack.Stats().NICs), - networkEndpoints: make(map[tcpip.NetworkProtocolNumber]NetworkEndpoint), - linkAddrResolvers: make(map[tcpip.NetworkProtocolNumber]*linkResolver), - duplicateAddressDetectors: make(map[tcpip.NetworkProtocolNumber]DuplicateAddressDetector), - qDisc: qDisc, - deliverLinkPackets: opts.DeliverLinkPackets, - } - nic.linkResQueue.init(nic) - - nic.packetEPsMu.Lock() - defer nic.packetEPsMu.Unlock() - - nic.packetEPs = make(map[tcpip.NetworkProtocolNumber]*packetEndpointList) - - resolutionRequired := ep.Capabilities()&CapabilityResolutionRequired != 0 - - for _, netProto := range stack.networkProtocols { - netNum := netProto.Number() - netEP := netProto.NewEndpoint(nic, nic) - nic.networkEndpoints[netNum] = netEP - - if resolutionRequired { - if r, ok := netEP.(LinkAddressResolver); ok { - l := &linkResolver{resolver: r} - l.neigh.init(nic, r) - nic.linkAddrResolvers[r.LinkAddressProtocol()] = l - } - } - - if d, ok := netEP.(DuplicateAddressDetector); ok { - nic.duplicateAddressDetectors[d.DuplicateAddressProtocol()] = d - } - } - - nic.NetworkLinkEndpoint.Attach(nic) - - return nic -} - -func (n *nic) getNetworkEndpoint(proto tcpip.NetworkProtocolNumber) NetworkEndpoint { - return n.networkEndpoints[proto] -} - -// Enabled implements NetworkInterface. -func (n *nic) Enabled() bool { - return n.enabled.Load() -} - -// setEnabled sets the enabled status for the NIC. -// -// Returns true if the enabled status was updated. -// -// +checklocks:n.enableDisableMu -func (n *nic) setEnabled(v bool) bool { - return n.enabled.Swap(v) != v -} - -// disable disables n. -// -// It undoes the work done by enable. -func (n *nic) disable() { - n.enableDisableMu.Lock() - defer n.enableDisableMu.Unlock() - n.disableLocked() -} - -// disableLocked disables n. -// -// It undoes the work done by enable. -// -// +checklocks:n.enableDisableMu -func (n *nic) disableLocked() { - if !n.Enabled() { - return - } - - // TODO(gvisor.dev/issue/1491): Should Routes that are currently bound to n be - // invalidated? Currently, Routes will continue to work when a NIC is enabled - // again, and applications may not know that the underlying NIC was ever - // disabled. - - for _, ep := range n.networkEndpoints { - ep.Disable() - - // Clear the neighbour table (including static entries) as we cannot - // guarantee that the current neighbour table will be valid when the NIC is - // enabled again. - // - // This matches linux's behaviour at the time of writing: - // https://github.com/torvalds/linux/blob/71c061d2443814de15e177489d5cc00a4a253ef3/net/core/neighbour.c#L371 - netProto := ep.NetworkProtocolNumber() - switch err := n.clearNeighbors(netProto); err.(type) { - case nil, *tcpip.ErrNotSupported: - default: - panic(fmt.Sprintf("n.clearNeighbors(%d): %s", netProto, err)) - } - } - - if !n.setEnabled(false) { - panic("should have only done work to disable the NIC if it was enabled") - } -} - -// enable enables n. -// -// If the stack has IPv6 enabled, enable will join the IPv6 All-Nodes Multicast -// address (ff02::1), start DAD for permanent addresses, and start soliciting -// routers if the stack is not operating as a router. If the stack is also -// configured to auto-generate a link-local address, one will be generated. -func (n *nic) enable() tcpip.Error { - n.enableDisableMu.Lock() - defer n.enableDisableMu.Unlock() - - if !n.setEnabled(true) { - return nil - } - - for _, ep := range n.networkEndpoints { - if err := ep.Enable(); err != nil { - return err - } - } - - return nil -} - -// remove detaches NIC from the link endpoint and releases network endpoint -// resources. This guarantees no packets between this NIC and the network -// stack. -// -// It returns an action that has to be excuted after releasing the Stack lock -// and any error encountered. -func (n *nic) remove(closeLinkEndpoint bool) (func(), tcpip.Error) { - n.enableDisableMu.Lock() - - n.disableLocked() - - for _, ep := range n.networkEndpoints { - ep.Close() - } - - n.enableDisableMu.Unlock() - - // Drain and drop any packets pending link resolution. - // We must not hold n.enableDisableMu here. - n.linkResQueue.cancel() - - var deferAct func() - // Prevent packets from going down to the link before shutting the link down. - n.qDisc.Close() - n.NetworkLinkEndpoint.Attach(nil) - if closeLinkEndpoint { - ep := n.NetworkLinkEndpoint - ep.SetOnCloseAction(nil) - // The link endpoint has to be closed without holding a - // netstack lock, because it can trigger other netstack - // operations. - deferAct = ep.Close - } - - return deferAct, nil -} - -// setPromiscuousMode enables or disables promiscuous mode. -func (n *nic) setPromiscuousMode(enable bool) { - n.promiscuous.Store(enable) -} - -// Promiscuous implements NetworkInterface. -func (n *nic) Promiscuous() bool { - return n.promiscuous.Load() -} - -// IsLoopback implements NetworkInterface. -func (n *nic) IsLoopback() bool { - return n.NetworkLinkEndpoint.Capabilities()&CapabilityLoopback != 0 -} - -// WritePacket implements NetworkEndpoint. -func (n *nic) WritePacket(r *Route, pkt *PacketBuffer) tcpip.Error { - routeInfo, _, err := r.resolvedFields(nil) - switch err.(type) { - case nil: - pkt.EgressRoute = routeInfo - return n.writePacket(pkt) - case *tcpip.ErrWouldBlock: - // As per relevant RFCs, we should queue packets while we wait for link - // resolution to complete. - // - // RFC 1122 section 2.3.2.2 (for IPv4): - // The link layer SHOULD save (rather than discard) at least - // one (the latest) packet of each set of packets destined to - // the same unresolved IP address, and transmit the saved - // packet when the address has been resolved. - // - // RFC 4861 section 7.2.2 (for IPv6): - // While waiting for address resolution to complete, the sender MUST, for - // each neighbor, retain a small queue of packets waiting for address - // resolution to complete. The queue MUST hold at least one packet, and - // MAY contain more. However, the number of queued packets per neighbor - // SHOULD be limited to some small value. When a queue overflows, the new - // arrival SHOULD replace the oldest entry. Once address resolution - // completes, the node transmits any queued packets. - return n.linkResQueue.enqueue(r, pkt) - default: - return err - } -} - -// WritePacketToRemote implements NetworkInterface. -func (n *nic) WritePacketToRemote(remoteLinkAddr tcpip.LinkAddress, pkt *PacketBuffer) tcpip.Error { - pkt.EgressRoute = RouteInfo{ - routeInfo: routeInfo{ - NetProto: pkt.NetworkProtocolNumber, - LocalLinkAddress: n.LinkAddress(), - }, - RemoteLinkAddress: remoteLinkAddr, - } - return n.writePacket(pkt) -} - -func (n *nic) writePacket(pkt *PacketBuffer) tcpip.Error { - n.NetworkLinkEndpoint.AddHeader(pkt) - return n.writeRawPacket(pkt) -} - -func (n *nic) writeRawPacketWithLinkHeaderInPayload(pkt *PacketBuffer) tcpip.Error { - if !n.NetworkLinkEndpoint.ParseHeader(pkt) { - return &tcpip.ErrMalformedHeader{} - } - return n.writeRawPacket(pkt) -} - -func (n *nic) writeRawPacket(pkt *PacketBuffer) tcpip.Error { - // Always an outgoing packet. - pkt.PktType = tcpip.PacketOutgoing - - if n.deliverLinkPackets { - n.DeliverLinkPacket(pkt.NetworkProtocolNumber, pkt) - } - - if err := n.qDisc.WritePacket(pkt); err != nil { - if _, ok := err.(*tcpip.ErrNoBufferSpace); ok { - n.stats.txPacketsDroppedNoBufferSpace.Increment() - } - return err - } - - n.stats.tx.packets.Increment() - n.stats.tx.bytes.IncrementBy(uint64(pkt.Size())) - return nil -} - -// setSpoofing enables or disables address spoofing. -func (n *nic) setSpoofing(enable bool) { - n.spoofing.Store(enable) -} - -// Spoofing implements NetworkInterface. -func (n *nic) Spoofing() bool { - return n.spoofing.Load() -} - -// primaryAddress returns an address that can be used to communicate with -// remoteAddr. -func (n *nic) primaryEndpoint(protocol tcpip.NetworkProtocolNumber, remoteAddr, srcHint tcpip.Address) AssignableAddressEndpoint { - ep := n.getNetworkEndpoint(protocol) - if ep == nil { - return nil - } - - addressableEndpoint, ok := ep.(AddressableEndpoint) - if !ok { - return nil - } - - return addressableEndpoint.AcquireOutgoingPrimaryAddress(remoteAddr, srcHint, n.Spoofing()) -} - -type getAddressBehaviour int - -const ( - // spoofing indicates that the NIC's spoofing flag should be observed when - // getting a NIC's address endpoint. - spoofing getAddressBehaviour = iota - - // promiscuous indicates that the NIC's promiscuous flag should be observed - // when getting a NIC's address endpoint. - promiscuous -) - -func (n *nic) getAddress(protocol tcpip.NetworkProtocolNumber, dst tcpip.Address) AssignableAddressEndpoint { - return n.getAddressOrCreateTemp(protocol, dst, CanBePrimaryEndpoint, promiscuous) -} - -func (n *nic) hasAddress(protocol tcpip.NetworkProtocolNumber, addr tcpip.Address) bool { - ep := n.getAddressOrCreateTempInner(protocol, addr, false, NeverPrimaryEndpoint) - if ep != nil { - ep.DecRef() - return true - } - - return false -} - -// findEndpoint finds the endpoint, if any, with the given address. -func (n *nic) findEndpoint(protocol tcpip.NetworkProtocolNumber, address tcpip.Address, peb PrimaryEndpointBehavior) AssignableAddressEndpoint { - return n.getAddressOrCreateTemp(protocol, address, peb, spoofing) -} - -// getAddressEpOrCreateTemp returns the address endpoint for the given protocol -// and address. -// -// If none exists a temporary one may be created if we are in promiscuous mode -// or spoofing. Promiscuous mode will only be checked if promiscuous is true. -// Similarly, spoofing will only be checked if spoofing is true. -// -// If the address is the IPv4 broadcast address for an endpoint's network, that -// endpoint will be returned. -func (n *nic) getAddressOrCreateTemp(protocol tcpip.NetworkProtocolNumber, address tcpip.Address, peb PrimaryEndpointBehavior, tempRef getAddressBehaviour) AssignableAddressEndpoint { - var spoofingOrPromiscuous bool - switch tempRef { - case spoofing: - spoofingOrPromiscuous = n.Spoofing() - case promiscuous: - spoofingOrPromiscuous = n.Promiscuous() - } - return n.getAddressOrCreateTempInner(protocol, address, spoofingOrPromiscuous, peb) -} - -// getAddressOrCreateTempInner is like getAddressEpOrCreateTemp except a boolean -// is passed to indicate whether or not we should generate temporary endpoints. -func (n *nic) getAddressOrCreateTempInner(protocol tcpip.NetworkProtocolNumber, address tcpip.Address, createTemp bool, peb PrimaryEndpointBehavior) AssignableAddressEndpoint { - ep := n.getNetworkEndpoint(protocol) - if ep == nil { - return nil - } - - addressableEndpoint, ok := ep.(AddressableEndpoint) - if !ok { - return nil - } - - return addressableEndpoint.AcquireAssignedAddress(address, createTemp, peb, false) -} - -// addAddress adds a new address to n, so that it starts accepting packets -// targeted at the given address (and network protocol). -func (n *nic) addAddress(protocolAddress tcpip.ProtocolAddress, properties AddressProperties) tcpip.Error { - ep := n.getNetworkEndpoint(protocolAddress.Protocol) - if ep == nil { - return &tcpip.ErrUnknownProtocol{} - } - - addressableEndpoint, ok := ep.(AddressableEndpoint) - if !ok { - return &tcpip.ErrNotSupported{} - } - - addressEndpoint, err := addressableEndpoint.AddAndAcquirePermanentAddress(protocolAddress.AddressWithPrefix, properties) - if err == nil { - // We have no need for the address endpoint. - addressEndpoint.DecRef() - } - return err -} - -// allPermanentAddresses returns all permanent addresses associated with -// this NIC. -func (n *nic) allPermanentAddresses() []tcpip.ProtocolAddress { - var addrs []tcpip.ProtocolAddress - for p, ep := range n.networkEndpoints { - addressableEndpoint, ok := ep.(AddressableEndpoint) - if !ok { - continue - } - - for _, a := range addressableEndpoint.PermanentAddresses() { - addrs = append(addrs, tcpip.ProtocolAddress{Protocol: p, AddressWithPrefix: a}) - } - } - return addrs -} - -// primaryAddresses returns the primary addresses associated with this NIC. -func (n *nic) primaryAddresses() []tcpip.ProtocolAddress { - var addrs []tcpip.ProtocolAddress - for p, ep := range n.networkEndpoints { - addressableEndpoint, ok := ep.(AddressableEndpoint) - if !ok { - continue - } - - for _, a := range addressableEndpoint.PrimaryAddresses() { - addrs = append(addrs, tcpip.ProtocolAddress{Protocol: p, AddressWithPrefix: a}) - } - } - return addrs -} - -// PrimaryAddress implements NetworkInterface. -func (n *nic) PrimaryAddress(proto tcpip.NetworkProtocolNumber) (tcpip.AddressWithPrefix, tcpip.Error) { - ep := n.getNetworkEndpoint(proto) - if ep == nil { - return tcpip.AddressWithPrefix{}, &tcpip.ErrUnknownProtocol{} - } - - addressableEndpoint, ok := ep.(AddressableEndpoint) - if !ok { - return tcpip.AddressWithPrefix{}, &tcpip.ErrNotSupported{} - } - - return addressableEndpoint.MainAddress(), nil -} - -// removeAddress removes an address from n. -func (n *nic) removeAddress(addr tcpip.Address) tcpip.Error { - for _, ep := range n.networkEndpoints { - addressableEndpoint, ok := ep.(AddressableEndpoint) - if !ok { - continue - } - - switch err := addressableEndpoint.RemovePermanentAddress(addr); err.(type) { - case *tcpip.ErrBadLocalAddress: - continue - default: - return err - } - } - - return &tcpip.ErrBadLocalAddress{} -} - -func (n *nic) setAddressLifetimes(addr tcpip.Address, lifetimes AddressLifetimes) tcpip.Error { - for _, ep := range n.networkEndpoints { - ep, ok := ep.(AddressableEndpoint) - if !ok { - continue - } - - switch err := ep.SetLifetimes(addr, lifetimes); err.(type) { - case *tcpip.ErrBadLocalAddress: - continue - default: - return err - } - } - - return &tcpip.ErrBadLocalAddress{} -} - -func (n *nic) getLinkAddress(addr, localAddr tcpip.Address, protocol tcpip.NetworkProtocolNumber, onResolve func(LinkResolutionResult)) tcpip.Error { - linkRes, ok := n.linkAddrResolvers[protocol] - if !ok { - return &tcpip.ErrNotSupported{} - } - - if linkAddr, ok := linkRes.resolver.ResolveStaticAddress(addr); ok { - onResolve(LinkResolutionResult{LinkAddress: linkAddr, Err: nil}) - return nil - } - - _, _, err := linkRes.neigh.entry(addr, localAddr, onResolve) - return err -} - -func (n *nic) neighbors(protocol tcpip.NetworkProtocolNumber) ([]NeighborEntry, tcpip.Error) { - if linkRes, ok := n.linkAddrResolvers[protocol]; ok { - return linkRes.neigh.entries(), nil - } - - return nil, &tcpip.ErrNotSupported{} -} - -func (n *nic) addStaticNeighbor(addr tcpip.Address, protocol tcpip.NetworkProtocolNumber, linkAddress tcpip.LinkAddress) tcpip.Error { - if linkRes, ok := n.linkAddrResolvers[protocol]; ok { - linkRes.neigh.addStaticEntry(addr, linkAddress) - return nil - } - - return &tcpip.ErrNotSupported{} -} - -func (n *nic) removeNeighbor(protocol tcpip.NetworkProtocolNumber, addr tcpip.Address) tcpip.Error { - if linkRes, ok := n.linkAddrResolvers[protocol]; ok { - if !linkRes.neigh.removeEntry(addr) { - return &tcpip.ErrBadAddress{} - } - return nil - } - - return &tcpip.ErrNotSupported{} -} - -func (n *nic) clearNeighbors(protocol tcpip.NetworkProtocolNumber) tcpip.Error { - if linkRes, ok := n.linkAddrResolvers[protocol]; ok { - linkRes.neigh.clear() - return nil - } - - return &tcpip.ErrNotSupported{} -} - -// joinGroup adds a new endpoint for the given multicast address, if none -// exists yet. Otherwise it just increments its count. -func (n *nic) joinGroup(protocol tcpip.NetworkProtocolNumber, addr tcpip.Address) tcpip.Error { - // TODO(b/143102137): When implementing MLD, make sure MLD packets are - // not sent unless a valid link-local address is available for use on n - // as an MLD packet's source address must be a link-local address as - // outlined in RFC 3810 section 5. - - ep := n.getNetworkEndpoint(protocol) - if ep == nil { - return &tcpip.ErrNotSupported{} - } - - gep, ok := ep.(GroupAddressableEndpoint) - if !ok { - return &tcpip.ErrNotSupported{} - } - - return gep.JoinGroup(addr) -} - -// leaveGroup decrements the count for the given multicast address, and when it -// reaches zero removes the endpoint for this address. -func (n *nic) leaveGroup(protocol tcpip.NetworkProtocolNumber, addr tcpip.Address) tcpip.Error { - ep := n.getNetworkEndpoint(protocol) - if ep == nil { - return &tcpip.ErrNotSupported{} - } - - gep, ok := ep.(GroupAddressableEndpoint) - if !ok { - return &tcpip.ErrNotSupported{} - } - - return gep.LeaveGroup(addr) -} - -// isInGroup returns true if n has joined the multicast group addr. -func (n *nic) isInGroup(addr tcpip.Address) bool { - for _, ep := range n.networkEndpoints { - gep, ok := ep.(GroupAddressableEndpoint) - if !ok { - continue - } - - if gep.IsInGroup(addr) { - return true - } - } - - return false -} - -// DeliverNetworkPacket finds the appropriate network protocol endpoint and -// hands the packet over for further processing. This function is called when -// the NIC receives a packet from the link endpoint. -func (n *nic) DeliverNetworkPacket(protocol tcpip.NetworkProtocolNumber, pkt *PacketBuffer) { - enabled := n.Enabled() - // If the NIC is not yet enabled, don't receive any packets. - if !enabled { - n.stats.disabledRx.packets.Increment() - n.stats.disabledRx.bytes.IncrementBy(uint64(pkt.Data().Size())) - return - } - - n.stats.rx.packets.Increment() - n.stats.rx.bytes.IncrementBy(uint64(pkt.Data().Size())) - - networkEndpoint := n.getNetworkEndpoint(protocol) - if networkEndpoint == nil { - n.stats.unknownL3ProtocolRcvdPacketCounts.Increment(uint64(protocol)) - return - } - - pkt.RXChecksumValidated = n.NetworkLinkEndpoint.Capabilities()&CapabilityRXChecksumOffload != 0 - - if n.deliverLinkPackets { - n.DeliverLinkPacket(protocol, pkt) - } - - networkEndpoint.HandlePacket(pkt) -} - -func (n *nic) DeliverLinkPacket(protocol tcpip.NetworkProtocolNumber, pkt *PacketBuffer) { - // Deliver to interested packet endpoints without holding NIC lock. - var packetEPPkt *PacketBuffer - defer func() { - if packetEPPkt != nil { - packetEPPkt.DecRef() - } - }() - deliverPacketEPs := func(ep PacketEndpoint) { - if packetEPPkt == nil { - // Packet endpoints hold the full packet. - // - // We perform a deep copy because higher-level endpoints may point to - // the middle of a view that is held by a packet endpoint. Save/Restore - // does not support overlapping slices and will panic in this case. - // - // TODO(https://gvisor.dev/issue/6517): Avoid this copy once S/R supports - // overlapping slices (e.g. by passing a shallow copy of pkt to the packet - // endpoint). - packetEPPkt = NewPacketBuffer(PacketBufferOptions{ - Payload: BufferSince(pkt.LinkHeader()), - }) - // If a link header was populated in the original packet buffer, then - // populate it in the packet buffer we provide to packet endpoints as - // packet endpoints inspect link headers. - packetEPPkt.LinkHeader().Consume(len(pkt.LinkHeader().Slice())) - packetEPPkt.PktType = pkt.PktType - // Assume the packet is for us if the packet type is unset. - // The packet type is set to PacketOutgoing when sending packets so - // this may only be unset for incoming packets where link endpoints - // have not set it. - if packetEPPkt.PktType == 0 { - packetEPPkt.PktType = tcpip.PacketHost - } - } - - clone := packetEPPkt.Clone() - defer clone.DecRef() - ep.HandlePacket(n.id, protocol, clone) - } - - n.packetEPsMu.Lock() - // Are any packet type sockets listening for this network protocol? - protoEPs, protoEPsOK := n.packetEPs[protocol] - // Other packet type sockets that are listening for all protocols. - anyEPs, anyEPsOK := n.packetEPs[header.EthernetProtocolAll] - n.packetEPsMu.Unlock() - - // On Linux, only ETH_P_ALL endpoints get outbound packets. - if pkt.PktType != tcpip.PacketOutgoing && protoEPsOK { - protoEPs.forEach(deliverPacketEPs) - } - if anyEPsOK { - anyEPs.forEach(deliverPacketEPs) - } -} - -// DeliverTransportPacket delivers the packets to the appropriate transport -// protocol endpoint. -func (n *nic) DeliverTransportPacket(protocol tcpip.TransportProtocolNumber, pkt *PacketBuffer) TransportPacketDisposition { - state, ok := n.stack.transportProtocols[protocol] - if !ok { - n.stats.unknownL4ProtocolRcvdPacketCounts.Increment(uint64(protocol)) - return TransportPacketProtocolUnreachable - } - - transProto := state.proto - - if len(pkt.TransportHeader().Slice()) == 0 { - n.stats.malformedL4RcvdPackets.Increment() - return TransportPacketHandled - } - - srcPort, dstPort, err := transProto.ParsePorts(pkt.TransportHeader().Slice()) - if err != nil { - n.stats.malformedL4RcvdPackets.Increment() - return TransportPacketHandled - } - - netProto, ok := n.stack.networkProtocols[pkt.NetworkProtocolNumber] - if !ok { - panic(fmt.Sprintf("expected network protocol = %d, have = %#v", pkt.NetworkProtocolNumber, n.stack.networkProtocolNumbers())) - } - - src, dst := netProto.ParseAddresses(pkt.NetworkHeader().Slice()) - id := TransportEndpointID{ - LocalPort: dstPort, - LocalAddress: dst, - RemotePort: srcPort, - RemoteAddress: src, - } - if n.stack.demux.deliverPacket(protocol, pkt, id) { - return TransportPacketHandled - } - - // Try to deliver to per-stack default handler. - if state.defaultHandler != nil { - if state.defaultHandler(id, pkt) { - return TransportPacketHandled - } - } - - // We could not find an appropriate destination for this packet so - // give the protocol specific error handler a chance to handle it. - // If it doesn't handle it then we should do so. - switch res := transProto.HandleUnknownDestinationPacket(id, pkt); res { - case UnknownDestinationPacketMalformed: - n.stats.malformedL4RcvdPackets.Increment() - return TransportPacketHandled - case UnknownDestinationPacketUnhandled: - return TransportPacketDestinationPortUnreachable - case UnknownDestinationPacketHandled: - return TransportPacketHandled - default: - panic(fmt.Sprintf("unrecognized result from HandleUnknownDestinationPacket = %d", res)) - } -} - -// DeliverTransportError implements TransportDispatcher. -func (n *nic) DeliverTransportError(local, remote tcpip.Address, net tcpip.NetworkProtocolNumber, trans tcpip.TransportProtocolNumber, transErr TransportError, pkt *PacketBuffer) { - state, ok := n.stack.transportProtocols[trans] - if !ok { - return - } - - transProto := state.proto - - // ICMPv4 only guarantees that 8 bytes of the transport protocol will - // be present in the payload. We know that the ports are within the - // first 8 bytes for all known transport protocols. - transHeader, ok := pkt.Data().PullUp(8) - if !ok { - return - } - - srcPort, dstPort, err := transProto.ParsePorts(transHeader) - if err != nil { - return - } - - id := TransportEndpointID{srcPort, local, dstPort, remote} - if n.stack.demux.deliverError(n, net, trans, transErr, pkt, id) { - return - } -} - -// DeliverRawPacket implements TransportDispatcher. -func (n *nic) DeliverRawPacket(protocol tcpip.TransportProtocolNumber, pkt *PacketBuffer) { - // For ICMPv4 only we validate the header length for compatibility with - // raw(7) ICMP_FILTER. The same check is made in Linux here: - // https://github.com/torvalds/linux/blob/70585216/net/ipv4/raw.c#L189. - if protocol == header.ICMPv4ProtocolNumber && len(pkt.TransportHeader().Slice())+pkt.Data().Size() < header.ICMPv4MinimumSize { - return - } - n.stack.demux.deliverRawPacket(protocol, pkt) -} - -// ID implements NetworkInterface. -func (n *nic) ID() tcpip.NICID { - return n.id -} - -// Name implements NetworkInterface. -func (n *nic) Name() string { - return n.name -} - -// nudConfigs gets the NUD configurations for n. -func (n *nic) nudConfigs(protocol tcpip.NetworkProtocolNumber) (NUDConfigurations, tcpip.Error) { - if linkRes, ok := n.linkAddrResolvers[protocol]; ok { - return linkRes.neigh.config(), nil - } - - return NUDConfigurations{}, &tcpip.ErrNotSupported{} -} - -// setNUDConfigs sets the NUD configurations for n. -// -// Note, if c contains invalid NUD configuration values, it will be fixed to -// use default values for the erroneous values. -func (n *nic) setNUDConfigs(protocol tcpip.NetworkProtocolNumber, c NUDConfigurations) tcpip.Error { - if linkRes, ok := n.linkAddrResolvers[protocol]; ok { - c.resetInvalidFields() - linkRes.neigh.setConfig(c) - return nil - } - - return &tcpip.ErrNotSupported{} -} - -func (n *nic) registerPacketEndpoint(netProto tcpip.NetworkProtocolNumber, ep PacketEndpoint) { - n.packetEPsMu.Lock() - defer n.packetEPsMu.Unlock() - - eps, ok := n.packetEPs[netProto] - if !ok { - eps = new(packetEndpointList) - n.packetEPs[netProto] = eps - } - eps.add(ep) -} - -func (n *nic) unregisterPacketEndpoint(netProto tcpip.NetworkProtocolNumber, ep PacketEndpoint) { - n.packetEPsMu.Lock() - defer n.packetEPsMu.Unlock() - - eps, ok := n.packetEPs[netProto] - if !ok { - return - } - eps.remove(ep) - if eps.len() == 0 { - delete(n.packetEPs, netProto) - } -} - -// isValidForOutgoing returns true if the endpoint can be used to send out a -// packet. It requires the endpoint to not be marked expired (i.e., its address -// has been removed) unless the NIC is in spoofing mode, or temporary. -func (n *nic) isValidForOutgoing(ep AssignableAddressEndpoint) bool { - return n.Enabled() && ep.IsAssigned(n.Spoofing()) -} - -// HandleNeighborProbe implements NetworkInterface. -func (n *nic) HandleNeighborProbe(protocol tcpip.NetworkProtocolNumber, addr tcpip.Address, linkAddr tcpip.LinkAddress) tcpip.Error { - if l, ok := n.linkAddrResolvers[protocol]; ok { - l.neigh.handleProbe(addr, linkAddr) - return nil - } - - return &tcpip.ErrNotSupported{} -} - -// HandleNeighborConfirmation implements NetworkInterface. -func (n *nic) HandleNeighborConfirmation(protocol tcpip.NetworkProtocolNumber, addr tcpip.Address, linkAddr tcpip.LinkAddress, flags ReachabilityConfirmationFlags) tcpip.Error { - if l, ok := n.linkAddrResolvers[protocol]; ok { - l.neigh.handleConfirmation(addr, linkAddr, flags) - return nil - } - - return &tcpip.ErrNotSupported{} -} - -// CheckLocalAddress implements NetworkInterface. -func (n *nic) CheckLocalAddress(protocol tcpip.NetworkProtocolNumber, addr tcpip.Address) bool { - if n.Spoofing() { - return true - } - - if addressEndpoint := n.getAddressOrCreateTempInner(protocol, addr, false /* createTemp */, NeverPrimaryEndpoint); addressEndpoint != nil { - addressEndpoint.DecRef() - return true - } - - return false -} - -func (n *nic) checkDuplicateAddress(protocol tcpip.NetworkProtocolNumber, addr tcpip.Address, h DADCompletionHandler) (DADCheckAddressDisposition, tcpip.Error) { - d, ok := n.duplicateAddressDetectors[protocol] - if !ok { - return 0, &tcpip.ErrNotSupported{} - } - - return d.CheckDuplicateAddress(addr, h), nil -} - -func (n *nic) setForwarding(protocol tcpip.NetworkProtocolNumber, enable bool) (bool, tcpip.Error) { - ep := n.getNetworkEndpoint(protocol) - if ep == nil { - return false, &tcpip.ErrUnknownProtocol{} - } - - forwardingEP, ok := ep.(ForwardingNetworkEndpoint) - if !ok { - return false, &tcpip.ErrNotSupported{} - } - - return forwardingEP.SetForwarding(enable), nil -} - -func (n *nic) forwarding(protocol tcpip.NetworkProtocolNumber) (bool, tcpip.Error) { - ep := n.getNetworkEndpoint(protocol) - if ep == nil { - return false, &tcpip.ErrUnknownProtocol{} - } - - forwardingEP, ok := ep.(ForwardingNetworkEndpoint) - if !ok { - return false, &tcpip.ErrNotSupported{} - } - - return forwardingEP.Forwarding(), nil -} - -func (n *nic) multicastForwardingEndpoint(protocol tcpip.NetworkProtocolNumber) (MulticastForwardingNetworkEndpoint, tcpip.Error) { - ep := n.getNetworkEndpoint(protocol) - if ep == nil { - return nil, &tcpip.ErrUnknownProtocol{} - } - - forwardingEP, ok := ep.(MulticastForwardingNetworkEndpoint) - if !ok { - return nil, &tcpip.ErrNotSupported{} - } - - return forwardingEP, nil -} - -func (n *nic) setMulticastForwarding(protocol tcpip.NetworkProtocolNumber, enable bool) (bool, tcpip.Error) { - ep, err := n.multicastForwardingEndpoint(protocol) - if err != nil { - return false, err - } - - return ep.SetMulticastForwarding(enable), nil -} - -func (n *nic) multicastForwarding(protocol tcpip.NetworkProtocolNumber) (bool, tcpip.Error) { - ep, err := n.multicastForwardingEndpoint(protocol) - if err != nil { - return false, err - } - - return ep.MulticastForwarding(), nil -} - -// CoordinatorNIC represents NetworkLinkEndpoint that can join multiple network devices. -type CoordinatorNIC interface { - // AddNIC adds the specified NIC device. - AddNIC(n *nic) tcpip.Error - // DelNIC deletes the specified NIC device. - DelNIC(n *nic) tcpip.Error -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/nic_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/nic_mutex.go deleted file mode 100644 index e3b2332abd..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/nic_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type nicRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var niclockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type niclockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *nicRWMutex) Lock() { - locking.AddGLock(nicprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *nicRWMutex) NestedLock(i niclockNameIndex) { - locking.AddGLock(nicprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *nicRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(nicprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *nicRWMutex) NestedUnlock(i niclockNameIndex) { - m.mu.Unlock() - locking.DelGLock(nicprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *nicRWMutex) RLock() { - locking.AddGLock(nicprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *nicRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(nicprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *nicRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *nicRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *nicRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var nicprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func nicinitLockNames() {} - -func init() { - nicinitLockNames() - nicprefixIndex = locking.NewMutexClass(reflect.TypeOf(nicRWMutex{}), niclockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/nic_stats.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/nic_stats.go deleted file mode 100644 index 38081682af..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/nic_stats.go +++ /dev/null @@ -1,84 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "gvisor.dev/gvisor/pkg/tcpip" -) - -// +stateify savable -type sharedStats struct { - local tcpip.NICStats - multiCounterNICStats -} - -// LINT.IfChange(multiCounterNICPacketStats) - -// +stateify savable -type multiCounterNICPacketStats struct { - packets tcpip.MultiCounterStat - bytes tcpip.MultiCounterStat -} - -func (m *multiCounterNICPacketStats) init(a, b *tcpip.NICPacketStats) { - m.packets.Init(a.Packets, b.Packets) - m.bytes.Init(a.Bytes, b.Bytes) -} - -// LINT.ThenChange(../tcpip.go:NICPacketStats) - -// LINT.IfChange(multiCounterNICNeighborStats) - -// +stateify savable -type multiCounterNICNeighborStats struct { - unreachableEntryLookups tcpip.MultiCounterStat - droppedConfirmationForNoninitiatedNeighbor tcpip.MultiCounterStat - droppedInvalidLinkAddressConfirmations tcpip.MultiCounterStat -} - -func (m *multiCounterNICNeighborStats) init(a, b *tcpip.NICNeighborStats) { - m.unreachableEntryLookups.Init(a.UnreachableEntryLookups, b.UnreachableEntryLookups) - m.droppedConfirmationForNoninitiatedNeighbor.Init(a.DroppedConfirmationForNoninitiatedNeighbor, b.DroppedConfirmationForNoninitiatedNeighbor) - m.droppedInvalidLinkAddressConfirmations.Init(a.DroppedInvalidLinkAddressConfirmations, b.DroppedInvalidLinkAddressConfirmations) -} - -// LINT.ThenChange(../tcpip.go:NICNeighborStats) - -// LINT.IfChange(multiCounterNICStats) - -// +stateify savable -type multiCounterNICStats struct { - unknownL3ProtocolRcvdPacketCounts tcpip.MultiIntegralStatCounterMap - unknownL4ProtocolRcvdPacketCounts tcpip.MultiIntegralStatCounterMap - malformedL4RcvdPackets tcpip.MultiCounterStat - tx multiCounterNICPacketStats - txPacketsDroppedNoBufferSpace tcpip.MultiCounterStat - rx multiCounterNICPacketStats - disabledRx multiCounterNICPacketStats - neighbor multiCounterNICNeighborStats -} - -func (m *multiCounterNICStats) init(a, b *tcpip.NICStats) { - m.unknownL3ProtocolRcvdPacketCounts.Init(a.UnknownL3ProtocolRcvdPacketCounts, b.UnknownL3ProtocolRcvdPacketCounts) - m.unknownL4ProtocolRcvdPacketCounts.Init(a.UnknownL4ProtocolRcvdPacketCounts, b.UnknownL4ProtocolRcvdPacketCounts) - m.malformedL4RcvdPackets.Init(a.MalformedL4RcvdPackets, b.MalformedL4RcvdPackets) - m.tx.init(&a.Tx, &b.Tx) - m.txPacketsDroppedNoBufferSpace.Init(a.TxPacketsDroppedNoBufferSpace, b.TxPacketsDroppedNoBufferSpace) - m.rx.init(&a.Rx, &b.Rx) - m.disabledRx.init(&a.DisabledRx, &b.DisabledRx) - m.neighbor.init(&a.Neighbor, &b.Neighbor) -} - -// LINT.ThenChange(../tcpip.go:NICStats) diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/nud.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/nud.go deleted file mode 100644 index 0c9c6cc8fa..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/nud.go +++ /dev/null @@ -1,429 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "math" - "math/rand" - "sync" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -const ( - // defaultBaseReachableTime is the default base duration for computing the - // random reachable time. - // - // Reachable time is the duration for which a neighbor is considered - // reachable after a positive reachability confirmation is received. It is a - // function of a uniformly distributed random value between the minimum and - // maximum random factors, multiplied by the base reachable time. Using a - // random component eliminates the possibility that Neighbor Unreachability - // Detection messages will synchronize with each other. - // - // Default taken from REACHABLE_TIME of RFC 4861 section 10. - defaultBaseReachableTime = 30 * time.Second - - // minimumBaseReachableTime is the minimum base duration for computing the - // random reachable time. - // - // Minimum = 1ms - minimumBaseReachableTime = time.Millisecond - - // defaultMinRandomFactor is the default minimum value of the random factor - // used for computing reachable time. - // - // Default taken from MIN_RANDOM_FACTOR of RFC 4861 section 10. - defaultMinRandomFactor = 0.5 - - // defaultMaxRandomFactor is the default maximum value of the random factor - // used for computing reachable time. - // - // The default value depends on the value of MinRandomFactor. - // If MinRandomFactor is less than MAX_RANDOM_FACTOR of RFC 4861 section 10, - // the value from the RFC will be used; otherwise, the default is - // MinRandomFactor multiplied by three. - defaultMaxRandomFactor = 1.5 - - // defaultRetransmitTimer is the default amount of time to wait between - // sending reachability probes. - // - // Default taken from RETRANS_TIMER of RFC 4861 section 10. - defaultRetransmitTimer = time.Second - - // minimumRetransmitTimer is the minimum amount of time to wait between - // sending reachability probes. - // - // Note, RFC 4861 does not impose a minimum Retransmit Timer, but we do here - // to make sure the messages are not sent all at once. We also come to this - // value because in the RetransmitTimer field of a Router Advertisement, a - // value of 0 means unspecified, so the smallest valid value is 1. Note, the - // unit of the RetransmitTimer field in the Router Advertisement is - // milliseconds. - minimumRetransmitTimer = time.Millisecond - - // defaultDelayFirstProbeTime is the default duration to wait for a - // non-Neighbor-Discovery related protocol to reconfirm reachability after - // entering the DELAY state. After this time, a reachability probe will be - // sent and the entry will transition to the PROBE state. - // - // Default taken from DELAY_FIRST_PROBE_TIME of RFC 4861 section 10. - defaultDelayFirstProbeTime = 5 * time.Second - - // defaultMaxMulticastProbes is the default number of reachabililty probes - // to send before concluding negative reachability and deleting the neighbor - // entry from the INCOMPLETE state. - // - // Default taken from MAX_MULTICAST_SOLICIT of RFC 4861 section 10. - defaultMaxMulticastProbes = 3 - - // defaultMaxUnicastProbes is the default number of reachability probes to - // send before concluding retransmission from within the PROBE state should - // cease and the entry SHOULD be deleted. - // - // Default taken from MAX_UNICASE_SOLICIT of RFC 4861 section 10. - defaultMaxUnicastProbes = 3 - - // defaultMaxAnycastDelayTime is the default time in which the stack SHOULD - // delay sending a response for a random time between 0 and this time, if the - // target address is an anycast address. - // - // Default taken from MAX_ANYCAST_DELAY_TIME of RFC 4861 section 10. - defaultMaxAnycastDelayTime = time.Second - - // defaultMaxReachbilityConfirmations is the default amount of unsolicited - // reachability confirmation messages a node MAY send to all-node multicast - // address when it determines its link-layer address has changed. - // - // Default taken from MAX_NEIGHBOR_ADVERTISEMENT of RFC 4861 section 10. - defaultMaxReachbilityConfirmations = 3 -) - -// NUDDispatcher is the interface integrators of netstack must implement to -// receive and handle NUD related events. -type NUDDispatcher interface { - // OnNeighborAdded will be called when a new entry is added to a NIC's (with - // ID nicID) neighbor table. - // - // This function is permitted to block indefinitely without interfering with - // the stack's operation. - // - // May be called concurrently. - OnNeighborAdded(tcpip.NICID, NeighborEntry) - - // OnNeighborChanged will be called when an entry in a NIC's (with ID nicID) - // neighbor table changes state and/or link address. - // - // This function is permitted to block indefinitely without interfering with - // the stack's operation. - // - // May be called concurrently. - OnNeighborChanged(tcpip.NICID, NeighborEntry) - - // OnNeighborRemoved will be called when an entry is removed from a NIC's - // (with ID nicID) neighbor table. - // - // This function is permitted to block indefinitely without interfering with - // the stack's operation. - // - // May be called concurrently. - OnNeighborRemoved(tcpip.NICID, NeighborEntry) -} - -// ReachabilityConfirmationFlags describes the flags used within a reachability -// confirmation (e.g. ARP reply or Neighbor Advertisement for ARP or NDP, -// respectively). -type ReachabilityConfirmationFlags struct { - // Solicited indicates that the advertisement was sent in response to a - // reachability probe. - Solicited bool - - // Override indicates that the reachability confirmation should override an - // existing neighbor cache entry and update the cached link-layer address. - // When Override is not set the confirmation will not update a cached - // link-layer address, but will update an existing neighbor cache entry for - // which no link-layer address is known. - Override bool - - // IsRouter indicates that the sender is a router. - IsRouter bool -} - -// NUDConfigurations is the NUD configurations for the netstack. This is used -// by the neighbor cache to operate the NUD state machine on each device in the -// local network. -// -// +stateify savable -type NUDConfigurations struct { - // BaseReachableTime is the base duration for computing the random reachable - // time. - // - // Reachable time is the duration for which a neighbor is considered - // reachable after a positive reachability confirmation is received. It is a - // function of uniformly distributed random value between minRandomFactor and - // maxRandomFactor multiplied by baseReachableTime. Using a random component - // eliminates the possibility that Neighbor Unreachability Detection messages - // will synchronize with each other. - // - // After this time, a neighbor entry will transition from REACHABLE to STALE - // state. - // - // Must be greater than 0. - BaseReachableTime time.Duration - - // LearnBaseReachableTime enables learning BaseReachableTime during runtime - // from the neighbor discovery protocol, if supported. - // - // TODO(gvisor.dev/issue/2240): Implement this NUD configuration option. - LearnBaseReachableTime bool - - // MinRandomFactor is the minimum value of the random factor used for - // computing reachable time. - // - // See BaseReachbleTime for more information on computing the reachable time. - // - // Must be greater than 0. - MinRandomFactor float32 - - // MaxRandomFactor is the maximum value of the random factor used for - // computing reachabile time. - // - // See BaseReachbleTime for more information on computing the reachable time. - // - // Must be great than or equal to MinRandomFactor. - MaxRandomFactor float32 - - // RetransmitTimer is the duration between retransmission of reachability - // probes in the PROBE state. - RetransmitTimer time.Duration - - // LearnRetransmitTimer enables learning RetransmitTimer during runtime from - // the neighbor discovery protocol, if supported. - // - // TODO(gvisor.dev/issue/2241): Implement this NUD configuration option. - LearnRetransmitTimer bool - - // DelayFirstProbeTime is the duration to wait for a non-Neighbor-Discovery - // related protocol to reconfirm reachability after entering the DELAY state. - // After this time, a reachability probe will be sent and the entry will - // transition to the PROBE state. - // - // Must be greater than 0. - DelayFirstProbeTime time.Duration - - // MaxMulticastProbes is the number of reachability probes to send before - // concluding negative reachability and deleting the neighbor entry from the - // INCOMPLETE state. - // - // Must be greater than 0. - MaxMulticastProbes uint32 - - // MaxUnicastProbes is the number of reachability probes to send before - // concluding retransmission from within the PROBE state should cease and - // entry SHOULD be deleted. - // - // Must be greater than 0. - MaxUnicastProbes uint32 - - // MaxAnycastDelayTime is the time in which the stack SHOULD delay sending a - // response for a random time between 0 and this time, if the target address - // is an anycast address. - // - // TODO(gvisor.dev/issue/2242): Use this option when sending solicited - // neighbor confirmations to anycast addresses and proxying neighbor - // confirmations. - MaxAnycastDelayTime time.Duration - - // MaxReachabilityConfirmations is the number of unsolicited reachability - // confirmation messages a node MAY send to all-node multicast address when - // it determines its link-layer address has changed. - // - // TODO(gvisor.dev/issue/2246): Discuss if implementation of this NUD - // configuration option is necessary. - MaxReachabilityConfirmations uint32 -} - -// DefaultNUDConfigurations returns a NUDConfigurations populated with default -// values defined by RFC 4861 section 10. -func DefaultNUDConfigurations() NUDConfigurations { - return NUDConfigurations{ - BaseReachableTime: defaultBaseReachableTime, - LearnBaseReachableTime: true, - MinRandomFactor: defaultMinRandomFactor, - MaxRandomFactor: defaultMaxRandomFactor, - RetransmitTimer: defaultRetransmitTimer, - LearnRetransmitTimer: true, - DelayFirstProbeTime: defaultDelayFirstProbeTime, - MaxMulticastProbes: defaultMaxMulticastProbes, - MaxUnicastProbes: defaultMaxUnicastProbes, - MaxAnycastDelayTime: defaultMaxAnycastDelayTime, - MaxReachabilityConfirmations: defaultMaxReachbilityConfirmations, - } -} - -// resetInvalidFields modifies an invalid NDPConfigurations with valid values. -// If invalid values are present in c, the corresponding default values will be -// used instead. This is needed to check, and conditionally fix, user-specified -// NUDConfigurations. -func (c *NUDConfigurations) resetInvalidFields() { - if c.BaseReachableTime < minimumBaseReachableTime { - c.BaseReachableTime = defaultBaseReachableTime - } - if c.MinRandomFactor <= 0 { - c.MinRandomFactor = defaultMinRandomFactor - } - if c.MaxRandomFactor < c.MinRandomFactor { - c.MaxRandomFactor = calcMaxRandomFactor(c.MinRandomFactor) - } - if c.RetransmitTimer < minimumRetransmitTimer { - c.RetransmitTimer = defaultRetransmitTimer - } - if c.DelayFirstProbeTime == 0 { - c.DelayFirstProbeTime = defaultDelayFirstProbeTime - } - if c.MaxMulticastProbes == 0 { - c.MaxMulticastProbes = defaultMaxMulticastProbes - } - if c.MaxUnicastProbes == 0 { - c.MaxUnicastProbes = defaultMaxUnicastProbes - } -} - -// calcMaxRandomFactor calculates the maximum value of the random factor used -// for computing reachable time. This function is necessary for when the -// default specified in RFC 4861 section 10 is less than the current -// MinRandomFactor. -// -// Assumes minRandomFactor is positive since validation of the minimum value -// should come before the validation of the maximum. -func calcMaxRandomFactor(minRandomFactor float32) float32 { - if minRandomFactor > defaultMaxRandomFactor { - return minRandomFactor * 3 - } - return defaultMaxRandomFactor -} - -// +stateify savable -type nudStateMu struct { - sync.RWMutex `state:"nosave"` - - config NUDConfigurations - - // reachableTime is the duration to wait for a REACHABLE entry to - // transition into STALE after inactivity. This value is calculated with - // the algorithm defined in RFC 4861 section 6.3.2. - reachableTime time.Duration - - expiration tcpip.MonotonicTime - prevBaseReachableTime time.Duration - prevMinRandomFactor float32 - prevMaxRandomFactor float32 -} - -// NUDState stores states needed for calculating reachable time. -// -// +stateify savable -type NUDState struct { - clock tcpip.Clock - // TODO(b/341946753): Restore when netstack is savable. - rng *rand.Rand `state:"nosave"` - mu nudStateMu -} - -// NewNUDState returns new NUDState using c as configuration and the specified -// random number generator for use in recomputing ReachableTime. -func NewNUDState(c NUDConfigurations, clock tcpip.Clock, rng *rand.Rand) *NUDState { - s := &NUDState{ - clock: clock, - rng: rng, - } - s.mu.config = c - return s -} - -// Config returns the NUD configuration. -func (s *NUDState) Config() NUDConfigurations { - s.mu.RLock() - defer s.mu.RUnlock() - return s.mu.config -} - -// SetConfig replaces the existing NUD configurations with c. -func (s *NUDState) SetConfig(c NUDConfigurations) { - s.mu.Lock() - defer s.mu.Unlock() - s.mu.config = c -} - -// ReachableTime returns the duration to wait for a REACHABLE entry to -// transition into STALE after inactivity. This value is recalculated for new -// values of BaseReachableTime, MinRandomFactor, and MaxRandomFactor using the -// algorithm defined in RFC 4861 section 6.3.2. -func (s *NUDState) ReachableTime() time.Duration { - s.mu.Lock() - defer s.mu.Unlock() - - if s.clock.NowMonotonic().After(s.mu.expiration) || - s.mu.config.BaseReachableTime != s.mu.prevBaseReachableTime || - s.mu.config.MinRandomFactor != s.mu.prevMinRandomFactor || - s.mu.config.MaxRandomFactor != s.mu.prevMaxRandomFactor { - s.recomputeReachableTimeLocked() - } - return s.mu.reachableTime -} - -// recomputeReachableTimeLocked forces a recalculation of ReachableTime using -// the algorithm defined in RFC 4861 section 6.3.2. -// -// This SHOULD automatically be invoked during certain situations, as per -// RFC 4861 section 6.3.4: -// -// If the received Reachable Time value is non-zero, the host SHOULD set its -// BaseReachableTime variable to the received value. If the new value -// differs from the previous value, the host SHOULD re-compute a new random -// ReachableTime value. ReachableTime is computed as a uniformly -// distributed random value between MIN_RANDOM_FACTOR and MAX_RANDOM_FACTOR -// times the BaseReachableTime. Using a random component eliminates the -// possibility that Neighbor Unreachability Detection messages will -// synchronize with each other. -// -// In most cases, the advertised Reachable Time value will be the same in -// consecutive Router Advertisements, and a host's BaseReachableTime rarely -// changes. In such cases, an implementation SHOULD ensure that a new -// random value gets re-computed at least once every few hours. -// -// s.mu MUST be locked for writing. -func (s *NUDState) recomputeReachableTimeLocked() { - s.mu.prevBaseReachableTime = s.mu.config.BaseReachableTime - s.mu.prevMinRandomFactor = s.mu.config.MinRandomFactor - s.mu.prevMaxRandomFactor = s.mu.config.MaxRandomFactor - - randomFactor := s.mu.config.MinRandomFactor + s.rng.Float32()*(s.mu.config.MaxRandomFactor-s.mu.config.MinRandomFactor) - - // Check for overflow, given that minRandomFactor and maxRandomFactor are - // guaranteed to be positive numbers. - if math.MaxInt64/randomFactor < float32(s.mu.config.BaseReachableTime) { - s.mu.reachableTime = time.Duration(math.MaxInt64) - } else if randomFactor == 1 { - // Avoid loss of precision when a large base reachable time is used. - s.mu.reachableTime = s.mu.config.BaseReachableTime - } else { - reachableTime := int64(float32(s.mu.config.BaseReachableTime) * randomFactor) - s.mu.reachableTime = time.Duration(reachableTime) - } - - s.mu.expiration = s.clock.NowMonotonic().Add(2 * time.Hour) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_buffer.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_buffer.go deleted file mode 100644 index 24956e71be..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_buffer.go +++ /dev/null @@ -1,769 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at // -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "fmt" - "io" - - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" -) - -type headerType int - -const ( - virtioNetHeader headerType = iota - linkHeader - networkHeader - transportHeader - numHeaderType -) - -var pkPool = sync.Pool{ - New: func() any { - return &PacketBuffer{} - }, -} - -// PacketBufferOptions specifies options for PacketBuffer creation. -type PacketBufferOptions struct { - // ReserveHeaderBytes is the number of bytes to reserve for headers. Total - // number of bytes pushed onto the headers must not exceed this value. - ReserveHeaderBytes int - - // Payload is the initial unparsed data for the new packet. If set, it will - // be owned by the new packet. - Payload buffer.Buffer - - // IsForwardedPacket identifies that the PacketBuffer being created is for a - // forwarded packet. - IsForwardedPacket bool - - // OnRelease is a function to be run when the packet buffer is no longer - // referenced (released back to the pool). - OnRelease func() -} - -// A PacketBuffer contains all the data of a network packet. -// -// As a PacketBuffer traverses up the stack, it may be necessary to pass it to -// multiple endpoints. -// -// The whole packet is expected to be a series of bytes in the following order: -// LinkHeader, NetworkHeader, TransportHeader, and Data. Any of them can be -// empty. Use of PacketBuffer in any other order is unsupported. -// -// PacketBuffer must be created with NewPacketBuffer, which sets the initial -// reference count to 1. Owners should call `DecRef()` when they are finished -// with the buffer to return it to the pool. -// -// Internal structure: A PacketBuffer holds a pointer to buffer.Buffer, which -// exposes a logically-contiguous byte storage. The underlying storage structure -// is abstracted out, and should not be a concern here for most of the time. -// -// |- reserved ->| -// |--->| consumed (incoming) -// 0 V V -// +--------+----+----+--------------------+ -// | | | | current data ... | (buf) -// +--------+----+----+--------------------+ -// ^ | -// |<---| pushed (outgoing) -// -// When a PacketBuffer is created, a `reserved` header region can be specified, -// which stack pushes headers in this region for an outgoing packet. There could -// be no such region for an incoming packet, and `reserved` is 0. The value of -// `reserved` never changes in the entire lifetime of the packet. -// -// Outgoing Packet: When a header is pushed, `pushed` gets incremented by the -// pushed length, and the current value is stored for each header. PacketBuffer -// subtracts this value from `reserved` to compute the starting offset of each -// header in `buf`. -// -// Incoming Packet: When a header is consumed (a.k.a. parsed), the current -// `consumed` value is stored for each header, and it gets incremented by the -// consumed length. PacketBuffer adds this value to `reserved` to compute the -// starting offset of each header in `buf`. -// -// +stateify savable -type PacketBuffer struct { - _ sync.NoCopy - - packetBufferRefs - - // buf is the underlying buffer for the packet. See struct level docs for - // details. - buf buffer.Buffer - reserved int - pushed int - consumed int - - // headers stores metadata about each header. - headers [numHeaderType]headerInfo - - // NetworkProtocolNumber is only valid when NetworkHeader().View().IsEmpty() - // returns false. - // TODO(gvisor.dev/issue/3574): Remove the separately passed protocol - // numbers in registration APIs that take a PacketBuffer. - NetworkProtocolNumber tcpip.NetworkProtocolNumber - - // TransportProtocol is only valid if it is non zero. - // TODO(gvisor.dev/issue/3810): This and the network protocol number should - // be moved into the headerinfo. This should resolve the validity issue. - TransportProtocolNumber tcpip.TransportProtocolNumber - - // Hash is the transport layer hash of this packet. A value of zero - // indicates no valid hash has been set. - Hash uint32 - - // Owner is implemented by task to get the uid and gid. - // Only set for locally generated packets. - Owner tcpip.PacketOwner - - // The following fields are only set by the qdisc layer when the packet - // is added to a queue. - EgressRoute RouteInfo - GSOOptions GSO - - // snatDone indicates if the packet's source has been manipulated as per - // iptables NAT table. - snatDone bool - - // dnatDone indicates if the packet's destination has been manipulated as per - // iptables NAT table. - dnatDone bool - - // PktType indicates the SockAddrLink.PacketType of the packet as defined in - // https://www.man7.org/linux/man-pages/man7/packet.7.html. - PktType tcpip.PacketType - - // NICID is the ID of the last interface the network packet was handled at. - NICID tcpip.NICID - - // RXChecksumValidated indicates that checksum verification may be - // safely skipped. - RXChecksumValidated bool - - // NetworkPacketInfo holds an incoming packet's network-layer information. - NetworkPacketInfo NetworkPacketInfo - - tuple *tuple - - // onRelease is a function to be run when the packet buffer is no longer - // referenced (released back to the pool). - onRelease func() `state:"nosave"` -} - -// NewPacketBuffer creates a new PacketBuffer with opts. -func NewPacketBuffer(opts PacketBufferOptions) *PacketBuffer { - pk := pkPool.Get().(*PacketBuffer) - pk.reset() - if opts.ReserveHeaderBytes != 0 { - v := buffer.NewViewSize(opts.ReserveHeaderBytes) - pk.buf.Append(v) - pk.reserved = opts.ReserveHeaderBytes - } - if opts.Payload.Size() > 0 { - pk.buf.Merge(&opts.Payload) - } - pk.NetworkPacketInfo.IsForwardedPacket = opts.IsForwardedPacket - pk.onRelease = opts.OnRelease - pk.InitRefs() - return pk -} - -// IncRef increments the PacketBuffer's refcount. -func (pk *PacketBuffer) IncRef() *PacketBuffer { - pk.packetBufferRefs.IncRef() - return pk -} - -// DecRef decrements the PacketBuffer's refcount. If the refcount is -// decremented to zero, the PacketBuffer is returned to the PacketBuffer -// pool. -func (pk *PacketBuffer) DecRef() { - pk.packetBufferRefs.DecRef(func() { - if pk.onRelease != nil { - pk.onRelease() - } - - pk.buf.Release() - pkPool.Put(pk) - }) -} - -func (pk *PacketBuffer) reset() { - *pk = PacketBuffer{} -} - -// ReservedHeaderBytes returns the number of bytes initially reserved for -// headers. -func (pk *PacketBuffer) ReservedHeaderBytes() int { - return pk.reserved -} - -// AvailableHeaderBytes returns the number of bytes currently available for -// headers. This is relevant to PacketHeader.Push method only. -func (pk *PacketBuffer) AvailableHeaderBytes() int { - return pk.reserved - pk.pushed -} - -// VirtioNetHeader returns the handle to virtio-layer header. -func (pk *PacketBuffer) VirtioNetHeader() PacketHeader { - return PacketHeader{ - pk: pk, - typ: virtioNetHeader, - } -} - -// LinkHeader returns the handle to link-layer header. -func (pk *PacketBuffer) LinkHeader() PacketHeader { - return PacketHeader{ - pk: pk, - typ: linkHeader, - } -} - -// NetworkHeader returns the handle to network-layer header. -func (pk *PacketBuffer) NetworkHeader() PacketHeader { - return PacketHeader{ - pk: pk, - typ: networkHeader, - } -} - -// TransportHeader returns the handle to transport-layer header. -func (pk *PacketBuffer) TransportHeader() PacketHeader { - return PacketHeader{ - pk: pk, - typ: transportHeader, - } -} - -// HeaderSize returns the total size of all headers in bytes. -func (pk *PacketBuffer) HeaderSize() int { - return pk.pushed + pk.consumed -} - -// Size returns the size of packet in bytes. -func (pk *PacketBuffer) Size() int { - return int(pk.buf.Size()) - pk.headerOffset() -} - -// MemSize returns the estimation size of the pk in memory, including backing -// buffer data. -func (pk *PacketBuffer) MemSize() int { - return int(pk.buf.Size()) + PacketBufferStructSize -} - -// Data returns the handle to data portion of pk. -func (pk *PacketBuffer) Data() PacketData { - return PacketData{pk: pk} -} - -// AsSlices returns the underlying storage of the whole packet. -// -// Note that AsSlices can allocate a lot. In hot paths it may be preferable to -// iterate over a PacketBuffer's data via AsViewList. -func (pk *PacketBuffer) AsSlices() [][]byte { - vl := pk.buf.AsViewList() - views := make([][]byte, 0, vl.Len()) - offset := pk.headerOffset() - pk.buf.SubApply(offset, int(pk.buf.Size())-offset, func(v *buffer.View) { - views = append(views, v.AsSlice()) - }) - return views -} - -// AsViewList returns the list of Views backing the PacketBuffer along with the -// header offset into them. Users may not save or modify the ViewList returned. -func (pk *PacketBuffer) AsViewList() (buffer.ViewList, int) { - return pk.buf.AsViewList(), pk.headerOffset() -} - -// ToBuffer returns a caller-owned copy of the underlying storage of the whole -// packet. -func (pk *PacketBuffer) ToBuffer() buffer.Buffer { - b := pk.buf.Clone() - b.TrimFront(int64(pk.headerOffset())) - return b -} - -// ToView returns a caller-owned copy of the underlying storage of the whole -// packet as a view. -func (pk *PacketBuffer) ToView() *buffer.View { - p := buffer.NewView(int(pk.buf.Size())) - offset := pk.headerOffset() - pk.buf.SubApply(offset, int(pk.buf.Size())-offset, func(v *buffer.View) { - p.Write(v.AsSlice()) - }) - return p -} - -func (pk *PacketBuffer) headerOffset() int { - return pk.reserved - pk.pushed -} - -func (pk *PacketBuffer) headerOffsetOf(typ headerType) int { - return pk.reserved + pk.headers[typ].offset -} - -func (pk *PacketBuffer) dataOffset() int { - return pk.reserved + pk.consumed -} - -func (pk *PacketBuffer) push(typ headerType, size int) []byte { - h := &pk.headers[typ] - if h.length > 0 { - panic(fmt.Sprintf("push(%s, %d) called after previous push", typ, size)) - } - if pk.pushed+size > pk.reserved { - panic(fmt.Sprintf("push(%s, %d) overflows; pushed=%d reserved=%d", typ, size, pk.pushed, pk.reserved)) - } - pk.pushed += size - h.offset = -pk.pushed - h.length = size - view := pk.headerView(typ) - return view.AsSlice() -} - -func (pk *PacketBuffer) consume(typ headerType, size int) (v []byte, consumed bool) { - h := &pk.headers[typ] - if h.length > 0 { - panic(fmt.Sprintf("consume must not be called twice: type %s", typ)) - } - if pk.reserved+pk.consumed+size > int(pk.buf.Size()) { - return nil, false - } - h.offset = pk.consumed - h.length = size - pk.consumed += size - view := pk.headerView(typ) - return view.AsSlice(), true -} - -func (pk *PacketBuffer) headerView(typ headerType) buffer.View { - h := &pk.headers[typ] - if h.length == 0 { - return buffer.View{} - } - v, ok := pk.buf.PullUp(pk.headerOffsetOf(typ), h.length) - if !ok { - panic("PullUp failed") - } - return v -} - -// Clone makes a semi-deep copy of pk. The underlying packet payload is -// shared. Hence, no modifications is done to underlying packet payload. -func (pk *PacketBuffer) Clone() *PacketBuffer { - newPk := pkPool.Get().(*PacketBuffer) - newPk.reset() - newPk.buf = pk.buf.Clone() - newPk.reserved = pk.reserved - newPk.pushed = pk.pushed - newPk.consumed = pk.consumed - newPk.headers = pk.headers - newPk.Hash = pk.Hash - newPk.Owner = pk.Owner - newPk.GSOOptions = pk.GSOOptions - newPk.NetworkProtocolNumber = pk.NetworkProtocolNumber - newPk.dnatDone = pk.dnatDone - newPk.snatDone = pk.snatDone - newPk.TransportProtocolNumber = pk.TransportProtocolNumber - newPk.PktType = pk.PktType - newPk.NICID = pk.NICID - newPk.RXChecksumValidated = pk.RXChecksumValidated - newPk.NetworkPacketInfo = pk.NetworkPacketInfo - newPk.tuple = pk.tuple - newPk.InitRefs() - return newPk -} - -// ReserveHeaderBytes prepends reserved space for headers at the front -// of the underlying buf. Can only be called once per packet. -func (pk *PacketBuffer) ReserveHeaderBytes(reserved int) { - if pk.reserved != 0 { - panic(fmt.Sprintf("ReserveHeaderBytes(...) called on packet with reserved=%d, want reserved=0", pk.reserved)) - } - pk.reserved = reserved - pk.buf.Prepend(buffer.NewViewSize(reserved)) -} - -// Network returns the network header as a header.Network. -// -// Network should only be called when NetworkHeader has been set. -func (pk *PacketBuffer) Network() header.Network { - switch netProto := pk.NetworkProtocolNumber; netProto { - case header.IPv4ProtocolNumber: - return header.IPv4(pk.NetworkHeader().Slice()) - case header.IPv6ProtocolNumber: - return header.IPv6(pk.NetworkHeader().Slice()) - default: - panic(fmt.Sprintf("unknown network protocol number %d", netProto)) - } -} - -// CloneToInbound makes a semi-deep copy of the packet buffer (similar to -// Clone) to be used as an inbound packet. -// -// See PacketBuffer.Data for details about how a packet buffer holds an inbound -// packet. -func (pk *PacketBuffer) CloneToInbound() *PacketBuffer { - newPk := pkPool.Get().(*PacketBuffer) - newPk.reset() - newPk.buf = pk.buf.Clone() - newPk.InitRefs() - // Treat unfilled header portion as reserved. - newPk.reserved = pk.AvailableHeaderBytes() - newPk.tuple = pk.tuple - return newPk -} - -// DeepCopyForForwarding creates a deep copy of the packet buffer for -// forwarding. -// -// The returned packet buffer will have the network and transport headers -// set if the original packet buffer did. -func (pk *PacketBuffer) DeepCopyForForwarding(reservedHeaderBytes int) *PacketBuffer { - payload := BufferSince(pk.NetworkHeader()) - defer payload.Release() - newPk := NewPacketBuffer(PacketBufferOptions{ - ReserveHeaderBytes: reservedHeaderBytes, - Payload: payload.DeepClone(), - IsForwardedPacket: true, - }) - - { - consumeBytes := len(pk.NetworkHeader().Slice()) - if _, consumed := newPk.NetworkHeader().Consume(consumeBytes); !consumed { - panic(fmt.Sprintf("expected to consume network header %d bytes from new packet", consumeBytes)) - } - newPk.NetworkProtocolNumber = pk.NetworkProtocolNumber - } - - { - consumeBytes := len(pk.TransportHeader().Slice()) - if _, consumed := newPk.TransportHeader().Consume(consumeBytes); !consumed { - panic(fmt.Sprintf("expected to consume transport header %d bytes from new packet", consumeBytes)) - } - newPk.TransportProtocolNumber = pk.TransportProtocolNumber - } - - newPk.tuple = pk.tuple - - return newPk -} - -// headerInfo stores metadata about a header in a packet. -// -// +stateify savable -type headerInfo struct { - // offset is the offset of the header in pk.buf relative to - // pk.buf[pk.reserved]. See the PacketBuffer struct for details. - offset int - - // length is the length of this header. - length int -} - -// PacketHeader is a handle object to a header in the underlying packet. -type PacketHeader struct { - pk *PacketBuffer - typ headerType -} - -// View returns an caller-owned copy of the underlying storage of h as a -// *buffer.View. -func (h PacketHeader) View() *buffer.View { - view := h.pk.headerView(h.typ) - if view.Size() == 0 { - return nil - } - return view.Clone() -} - -// Slice returns the underlying storage of h as a []byte. The returned slice -// should not be modified if the underlying packet could be shared, cloned, or -// borrowed. -func (h PacketHeader) Slice() []byte { - view := h.pk.headerView(h.typ) - return view.AsSlice() -} - -// Push pushes size bytes in the front of its residing packet, and returns the -// backing storage. Callers may only call one of Push or Consume once on each -// header in the lifetime of the underlying packet. -func (h PacketHeader) Push(size int) []byte { - return h.pk.push(h.typ, size) -} - -// Consume moves the first size bytes of the unparsed data portion in the packet -// to h, and returns the backing storage. In the case of data is shorter than -// size, consumed will be false, and the state of h will not be affected. -// Callers may only call one of Push or Consume once on each header in the -// lifetime of the underlying packet. -func (h PacketHeader) Consume(size int) (v []byte, consumed bool) { - return h.pk.consume(h.typ, size) -} - -// PacketData represents the data portion of a PacketBuffer. -// -// +stateify savable -type PacketData struct { - pk *PacketBuffer -} - -// PullUp returns a contiguous slice of size bytes from the beginning of d. -// Callers should not keep the view for later use. Callers can write to the -// returned slice if they have singular ownership over the underlying -// Buffer. -func (d PacketData) PullUp(size int) (b []byte, ok bool) { - view, ok := d.pk.buf.PullUp(d.pk.dataOffset(), size) - return view.AsSlice(), ok -} - -// Consume is the same as PullUp except that is additionally consumes the -// returned bytes. Subsequent PullUp or Consume will not return these bytes. -func (d PacketData) Consume(size int) ([]byte, bool) { - v, ok := d.PullUp(size) - if ok { - d.pk.consumed += size - } - return v, ok -} - -// ReadTo reads bytes from d to dst. It also removes these bytes from d -// unless peek is true. -func (d PacketData) ReadTo(dst io.Writer, peek bool) (int, error) { - var ( - err error - done int - ) - offset := d.pk.dataOffset() - d.pk.buf.SubApply(offset, int(d.pk.buf.Size())-offset, func(v *buffer.View) { - if err != nil { - return - } - var n int - n, err = dst.Write(v.AsSlice()) - done += n - if err != nil { - return - } - if n != v.Size() { - panic(fmt.Sprintf("io.Writer.Write succeeded with incomplete write: %d != %d", n, v.Size())) - } - }) - if !peek { - d.pk.buf.TrimFront(int64(done)) - } - return done, err -} - -// CapLength reduces d to at most length bytes. -func (d PacketData) CapLength(length int) { - if length < 0 { - panic("length < 0") - } - d.pk.buf.Truncate(int64(length + d.pk.dataOffset())) -} - -// ToBuffer returns the underlying storage of d in a buffer.Buffer. -func (d PacketData) ToBuffer() buffer.Buffer { - buf := d.pk.buf.Clone() - offset := d.pk.dataOffset() - buf.TrimFront(int64(offset)) - return buf -} - -// AppendView appends v into d, taking the ownership of v. -func (d PacketData) AppendView(v *buffer.View) { - d.pk.buf.Append(v) -} - -// MergeBuffer merges b into d and clears b. -func (d PacketData) MergeBuffer(b *buffer.Buffer) { - d.pk.buf.Merge(b) -} - -// MergeFragment appends the data portion of frag to dst. It modifies -// frag and frag should not be used again. -func MergeFragment(dst, frag *PacketBuffer) { - frag.buf.TrimFront(int64(frag.dataOffset())) - dst.buf.Merge(&frag.buf) -} - -// ReadFrom moves at most count bytes from the beginning of src to the end -// of d and returns the number of bytes moved. -func (d PacketData) ReadFrom(src *buffer.Buffer, count int) int { - toRead := int64(count) - if toRead > src.Size() { - toRead = src.Size() - } - clone := src.Clone() - clone.Truncate(toRead) - d.pk.buf.Merge(&clone) - src.TrimFront(toRead) - return int(toRead) -} - -// ReadFromPacketData moves count bytes from the beginning of oth to the end of -// d. -func (d PacketData) ReadFromPacketData(oth PacketData, count int) { - buf := oth.ToBuffer() - buf.Truncate(int64(count)) - d.MergeBuffer(&buf) - oth.TrimFront(count) - buf.Release() -} - -// Merge clears headers in oth and merges its data with d. -func (d PacketData) Merge(oth PacketData) { - oth.pk.buf.TrimFront(int64(oth.pk.dataOffset())) - d.pk.buf.Merge(&oth.pk.buf) -} - -// TrimFront removes up to count bytes from the front of d's payload. -func (d PacketData) TrimFront(count int) { - if count > d.Size() { - count = d.Size() - } - buf := d.pk.Data().ToBuffer() - buf.TrimFront(int64(count)) - d.pk.buf.Truncate(int64(d.pk.dataOffset())) - d.pk.buf.Merge(&buf) -} - -// Size returns the number of bytes in the data payload of the packet. -func (d PacketData) Size() int { - return int(d.pk.buf.Size()) - d.pk.dataOffset() -} - -// AsRange returns a Range representing the current data payload of the packet. -func (d PacketData) AsRange() Range { - return Range{ - pk: d.pk, - offset: d.pk.dataOffset(), - length: d.Size(), - } -} - -// Checksum returns a checksum over the data payload of the packet. -func (d PacketData) Checksum() uint16 { - return d.pk.buf.Checksum(d.pk.dataOffset()) -} - -// ChecksumAtOffset returns a checksum over the data payload of the packet -// starting from offset. -func (d PacketData) ChecksumAtOffset(offset int) uint16 { - return d.pk.buf.Checksum(offset) -} - -// Range represents a contiguous subportion of a PacketBuffer. -type Range struct { - pk *PacketBuffer - offset int - length int -} - -// Size returns the number of bytes in r. -func (r Range) Size() int { - return r.length -} - -// SubRange returns a new Range starting at off bytes of r. It returns an empty -// range if off is out-of-bounds. -func (r Range) SubRange(off int) Range { - if off > r.length { - return Range{pk: r.pk} - } - return Range{ - pk: r.pk, - offset: r.offset + off, - length: r.length - off, - } -} - -// Capped returns a new Range with the same starting point of r and length -// capped at max. -func (r Range) Capped(max int) Range { - if r.length <= max { - return r - } - return Range{ - pk: r.pk, - offset: r.offset, - length: max, - } -} - -// ToSlice returns a caller-owned copy of data in r. -func (r Range) ToSlice() []byte { - if r.length == 0 { - return nil - } - all := make([]byte, 0, r.length) - r.iterate(func(v *buffer.View) { - all = append(all, v.AsSlice()...) - }) - return all -} - -// ToView returns a caller-owned copy of data in r. -func (r Range) ToView() *buffer.View { - if r.length == 0 { - return nil - } - newV := buffer.NewView(r.length) - r.iterate(func(v *buffer.View) { - newV.Write(v.AsSlice()) - }) - return newV -} - -// iterate calls fn for each piece in r. fn is always called with a non-empty -// slice. -func (r Range) iterate(fn func(*buffer.View)) { - r.pk.buf.SubApply(r.offset, r.length, fn) -} - -// PayloadSince returns a caller-owned view containing the payload starting from -// and including a particular header. -func PayloadSince(h PacketHeader) *buffer.View { - offset := h.pk.headerOffset() - for i := headerType(0); i < h.typ; i++ { - offset += h.pk.headers[i].length - } - return Range{ - pk: h.pk, - offset: offset, - length: int(h.pk.buf.Size()) - offset, - }.ToView() -} - -// BufferSince returns a caller-owned view containing the packet payload -// starting from and including a particular header. -func BufferSince(h PacketHeader) buffer.Buffer { - offset := h.pk.headerOffset() - for i := headerType(0); i < h.typ; i++ { - offset += h.pk.headers[i].length - } - clone := h.pk.buf.Clone() - clone.TrimFront(int64(offset)) - return clone -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_buffer_list.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_buffer_list.go deleted file mode 100644 index 363059a9b3..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_buffer_list.go +++ /dev/null @@ -1,87 +0,0 @@ -// Copyright 2022 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at // -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -// PacketBufferList is a slice-backed list. All operations are O(1) unless -// otherwise noted. -// -// Note: this is intentionally backed by a slice, not an intrusive list. We've -// switched PacketBufferList back-and-forth between intrusive list and -// slice-backed implementations, and the latter has proven to be preferable: -// -// - Intrusive lists are a refcounting nightmare, as modifying the list -// sometimes-but-not-always modifies the list for others. -// - The slice-backed implementation has been benchmarked and is slightly more -// performant. -// -// +stateify savable -type PacketBufferList struct { - pbs []*PacketBuffer -} - -// AsSlice returns a slice containing the packets in the list. -// -//go:nosplit -func (pl *PacketBufferList) AsSlice() []*PacketBuffer { - return pl.pbs -} - -// Reset decrements all elements and resets the list to the empty state. -// -//go:nosplit -func (pl *PacketBufferList) Reset() { - for i, pb := range pl.pbs { - pb.DecRef() - pl.pbs[i] = nil - } - pl.pbs = pl.pbs[:0] -} - -// Len returns the number of elements in the list. -// -//go:nosplit -func (pl *PacketBufferList) Len() int { - return len(pl.pbs) -} - -// PushBack inserts the PacketBuffer at the back of the list. -// -//go:nosplit -func (pl *PacketBufferList) PushBack(pb *PacketBuffer) { - pl.pbs = append(pl.pbs, pb) -} - -// PopFront removes the first element in the list if it exists and returns it. -// -//go:nosplit -func (pl *PacketBufferList) PopFront() *PacketBuffer { - if len(pl.pbs) == 0 { - return nil - } - pkt := pl.pbs[0] - pl.pbs = pl.pbs[1:] - return pkt -} - -// DecRef decreases the reference count on each PacketBuffer -// stored in the list. -// -// NOTE: runs in O(n) time. -// -//go:nosplit -func (pl PacketBufferList) DecRef() { - for _, pb := range pl.pbs { - pb.DecRef() - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_buffer_refs.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_buffer_refs.go deleted file mode 100644 index a3a856933d..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_buffer_refs.go +++ /dev/null @@ -1,142 +0,0 @@ -package stack - -import ( - "context" - "fmt" - - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/refs" -) - -// enableLogging indicates whether reference-related events should be logged (with -// stack traces). This is false by default and should only be set to true for -// debugging purposes, as it can generate an extremely large amount of output -// and drastically degrade performance. -const packetBufferenableLogging = false - -// obj is used to customize logging. Note that we use a pointer to T so that -// we do not copy the entire object when passed as a format parameter. -var packetBufferobj *PacketBuffer - -// Refs implements refs.RefCounter. It keeps a reference count using atomic -// operations and calls the destructor when the count reaches zero. -// -// NOTE: Do not introduce additional fields to the Refs struct. It is used by -// many filesystem objects, and we want to keep it as small as possible (i.e., -// the same size as using an int64 directly) to avoid taking up extra cache -// space. In general, this template should not be extended at the cost of -// performance. If it does not offer enough flexibility for a particular object -// (example: b/187877947), we should implement the RefCounter/CheckedObject -// interfaces manually. -// -// +stateify savable -type packetBufferRefs struct { - // refCount is composed of two fields: - // - // [32-bit speculative references]:[32-bit real references] - // - // Speculative references are used for TryIncRef, to avoid a CompareAndSwap - // loop. See IncRef, DecRef and TryIncRef for details of how these fields are - // used. - refCount atomicbitops.Int64 -} - -// InitRefs initializes r with one reference and, if enabled, activates leak -// checking. -func (r *packetBufferRefs) InitRefs() { - - r.refCount.RacyStore(1) - refs.Register(r) -} - -// RefType implements refs.CheckedObject.RefType. -func (r *packetBufferRefs) RefType() string { - return fmt.Sprintf("%T", packetBufferobj)[1:] -} - -// LeakMessage implements refs.CheckedObject.LeakMessage. -func (r *packetBufferRefs) LeakMessage() string { - return fmt.Sprintf("[%s %p] reference count of %d instead of 0", r.RefType(), r, r.ReadRefs()) -} - -// LogRefs implements refs.CheckedObject.LogRefs. -func (r *packetBufferRefs) LogRefs() bool { - return packetBufferenableLogging -} - -// ReadRefs returns the current number of references. The returned count is -// inherently racy and is unsafe to use without external synchronization. -func (r *packetBufferRefs) ReadRefs() int64 { - return r.refCount.Load() -} - -// IncRef implements refs.RefCounter.IncRef. -// -//go:nosplit -func (r *packetBufferRefs) IncRef() { - v := r.refCount.Add(1) - if packetBufferenableLogging { - refs.LogIncRef(r, v) - } - if v <= 1 { - panic(fmt.Sprintf("Incrementing non-positive count %p on %s", r, r.RefType())) - } -} - -// TryIncRef implements refs.TryRefCounter.TryIncRef. -// -// To do this safely without a loop, a speculative reference is first acquired -// on the object. This allows multiple concurrent TryIncRef calls to distinguish -// other TryIncRef calls from genuine references held. -// -//go:nosplit -func (r *packetBufferRefs) TryIncRef() bool { - const speculativeRef = 1 << 32 - if v := r.refCount.Add(speculativeRef); int32(v) == 0 { - - r.refCount.Add(-speculativeRef) - return false - } - - v := r.refCount.Add(-speculativeRef + 1) - if packetBufferenableLogging { - refs.LogTryIncRef(r, v) - } - return true -} - -// DecRef implements refs.RefCounter.DecRef. -// -// Note that speculative references are counted here. Since they were added -// prior to real references reaching zero, they will successfully convert to -// real references. In other words, we see speculative references only in the -// following case: -// -// A: TryIncRef [speculative increase => sees non-negative references] -// B: DecRef [real decrease] -// A: TryIncRef [transform speculative to real] -// -//go:nosplit -func (r *packetBufferRefs) DecRef(destroy func()) { - v := r.refCount.Add(-1) - if packetBufferenableLogging { - refs.LogDecRef(r, v) - } - switch { - case v < 0: - panic(fmt.Sprintf("Decrementing non-positive ref count %p, owned by %s", r, r.RefType())) - - case v == 0: - refs.Unregister(r) - - if destroy != nil { - destroy() - } - } -} - -func (r *packetBufferRefs) afterLoad(context.Context) { - if r.ReadRefs() > 0 { - refs.Register(r) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_buffer_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_buffer_unsafe.go deleted file mode 100644 index 9d1105b290..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_buffer_unsafe.go +++ /dev/null @@ -1,28 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import "unsafe" - -// PacketBufferStructSize is the minimal size of the packet buffer overhead. -const PacketBufferStructSize = int(unsafe.Sizeof(PacketBuffer{})) - -// ID returns a unique ID for the underlying storage of the packet. -// -// Two *PacketBuffers have the same IDs if and only if they point to the same -// location in memory. -func (pk *PacketBuffer) ID() uintptr { - return uintptr(unsafe.Pointer(pk)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_endpoint_list_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_endpoint_list_mutex.go deleted file mode 100644 index ad3e0b28db..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_endpoint_list_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type packetEndpointListRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var packetEndpointListlockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type packetEndpointListlockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *packetEndpointListRWMutex) Lock() { - locking.AddGLock(packetEndpointListprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *packetEndpointListRWMutex) NestedLock(i packetEndpointListlockNameIndex) { - locking.AddGLock(packetEndpointListprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *packetEndpointListRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(packetEndpointListprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *packetEndpointListRWMutex) NestedUnlock(i packetEndpointListlockNameIndex) { - m.mu.Unlock() - locking.DelGLock(packetEndpointListprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *packetEndpointListRWMutex) RLock() { - locking.AddGLock(packetEndpointListprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *packetEndpointListRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(packetEndpointListprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *packetEndpointListRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *packetEndpointListRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *packetEndpointListRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var packetEndpointListprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func packetEndpointListinitLockNames() {} - -func init() { - packetEndpointListinitLockNames() - packetEndpointListprefixIndex = locking.NewMutexClass(reflect.TypeOf(packetEndpointListRWMutex{}), packetEndpointListlockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_eps_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_eps_mutex.go deleted file mode 100644 index 4e9dda8b0d..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packet_eps_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type packetEPsRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var packetEPslockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type packetEPslockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *packetEPsRWMutex) Lock() { - locking.AddGLock(packetEPsprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *packetEPsRWMutex) NestedLock(i packetEPslockNameIndex) { - locking.AddGLock(packetEPsprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *packetEPsRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(packetEPsprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *packetEPsRWMutex) NestedUnlock(i packetEPslockNameIndex) { - m.mu.Unlock() - locking.DelGLock(packetEPsprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *packetEPsRWMutex) RLock() { - locking.AddGLock(packetEPsprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *packetEPsRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(packetEPsprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *packetEPsRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *packetEPsRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *packetEPsRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var packetEPsprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func packetEPsinitLockNames() {} - -func init() { - packetEPsinitLockNames() - packetEPsprefixIndex = locking.NewMutexClass(reflect.TypeOf(packetEPsRWMutex{}), packetEPslockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packets_pending_link_resolution_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packets_pending_link_resolution_mutex.go deleted file mode 100644 index ac47a79e26..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/packets_pending_link_resolution_mutex.go +++ /dev/null @@ -1,64 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// Mutex is sync.Mutex with the correctness validator. -type packetsPendingLinkResolutionMutex struct { - mu sync.Mutex -} - -var packetsPendingLinkResolutionprefixIndex *locking.MutexClass - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var packetsPendingLinkResolutionlockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type packetsPendingLinkResolutionlockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *packetsPendingLinkResolutionMutex) Lock() { - locking.AddGLock(packetsPendingLinkResolutionprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *packetsPendingLinkResolutionMutex) NestedLock(i packetsPendingLinkResolutionlockNameIndex) { - locking.AddGLock(packetsPendingLinkResolutionprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *packetsPendingLinkResolutionMutex) Unlock() { - locking.DelGLock(packetsPendingLinkResolutionprefixIndex, -1) - m.mu.Unlock() -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *packetsPendingLinkResolutionMutex) NestedUnlock(i packetsPendingLinkResolutionlockNameIndex) { - locking.DelGLock(packetsPendingLinkResolutionprefixIndex, int(i)) - m.mu.Unlock() -} - -// DO NOT REMOVE: The following function is automatically replaced. -func packetsPendingLinkResolutioninitLockNames() {} - -func init() { - packetsPendingLinkResolutioninitLockNames() - packetsPendingLinkResolutionprefixIndex = locking.NewMutexClass(reflect.TypeOf(packetsPendingLinkResolutionMutex{}), packetsPendingLinkResolutionlockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/pending_packets.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/pending_packets.go deleted file mode 100644 index b95c3cf0cb..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/pending_packets.go +++ /dev/null @@ -1,224 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "fmt" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -const ( - // maxPendingResolutions is the maximum number of pending link-address - // resolutions. - maxPendingResolutions = 64 - maxPendingPacketsPerResolution = 256 -) - -// +stateify savable -type pendingPacket struct { - routeInfo RouteInfo - pkt *PacketBuffer -} - -// +stateify savable -type packetsPendingLinkResolutionMu struct { - packetsPendingLinkResolutionMutex `state:"nosave"` - - // The packets to send once the resolver completes. - // - // The link resolution channel is used as the key for this map. - packets map[<-chan struct{}][]pendingPacket - - // FIFO of channels used to cancel the oldest goroutine waiting for - // link-address resolution. - // - // cancelChans holds the same channels that are used as keys to packets. - cancelChans []<-chan struct{} -} - -// packetsPendingLinkResolution is a queue of packets pending link resolution. -// -// Once link resolution completes successfully, the packets will be written. -// -// +stateify savable -type packetsPendingLinkResolution struct { - nic *nic - mu packetsPendingLinkResolutionMu -} - -func (f *packetsPendingLinkResolution) incrementOutgoingPacketErrors(pkt *PacketBuffer) { - f.nic.stack.stats.IP.OutgoingPacketErrors.Increment() - - if ipEndpointStats, ok := f.nic.getNetworkEndpoint(pkt.NetworkProtocolNumber).Stats().(IPNetworkEndpointStats); ok { - ipEndpointStats.IPStats().OutgoingPacketErrors.Increment() - } -} - -func (f *packetsPendingLinkResolution) init(nic *nic) { - f.mu.Lock() - defer f.mu.Unlock() - f.nic = nic - f.mu.packets = make(map[<-chan struct{}][]pendingPacket) -} - -// cancel drains all pending packet queues and release all packet -// references. -func (f *packetsPendingLinkResolution) cancel() { - f.mu.Lock() - defer f.mu.Unlock() - for ch, pendingPackets := range f.mu.packets { - for _, p := range pendingPackets { - p.pkt.DecRef() - } - delete(f.mu.packets, ch) - } - f.mu.cancelChans = nil -} - -// dequeue any pending packets associated with ch. -// -// If err is nil, packets will be written and sent to the given remote link -// address. -func (f *packetsPendingLinkResolution) dequeue(ch <-chan struct{}, linkAddr tcpip.LinkAddress, err tcpip.Error) { - f.mu.Lock() - packets, ok := f.mu.packets[ch] - delete(f.mu.packets, ch) - - if ok { - for i, cancelChan := range f.mu.cancelChans { - if cancelChan == ch { - f.mu.cancelChans = append(f.mu.cancelChans[:i], f.mu.cancelChans[i+1:]...) - break - } - } - } - - f.mu.Unlock() - - if ok { - f.dequeuePackets(packets, linkAddr, err) - } -} - -// enqueue a packet to be sent once link resolution completes. -// -// If the maximum number of pending resolutions is reached, the packets -// associated with the oldest link resolution will be dequeued as if they failed -// link resolution. -func (f *packetsPendingLinkResolution) enqueue(r *Route, pkt *PacketBuffer) tcpip.Error { - f.mu.Lock() - // Make sure we attempt resolution while holding f's lock so that we avoid - // a race where link resolution completes before we enqueue the packets. - // - // A @ T1: Call ResolvedFields (get link resolution channel) - // B @ T2: Complete link resolution, dequeue pending packets - // C @ T1: Enqueue packet that already completed link resolution (which will - // never dequeue) - // - // To make sure B does not interleave with A and C, we make sure A and C are - // done while holding the lock. - routeInfo, ch, err := r.resolvedFields(nil) - switch err.(type) { - case nil: - // The route resolved immediately, so we don't need to wait for link - // resolution to send the packet. - f.mu.Unlock() - pkt.EgressRoute = routeInfo - return f.nic.writePacket(pkt) - case *tcpip.ErrWouldBlock: - // We need to wait for link resolution to complete. - default: - f.mu.Unlock() - return err - } - - defer f.mu.Unlock() - - packets, ok := f.mu.packets[ch] - packets = append(packets, pendingPacket{ - routeInfo: routeInfo, - pkt: pkt.IncRef(), - }) - - if len(packets) > maxPendingPacketsPerResolution { - f.incrementOutgoingPacketErrors(packets[0].pkt) - packets[0].pkt.DecRef() - packets[0] = pendingPacket{} - packets = packets[1:] - - if numPackets := len(packets); numPackets != maxPendingPacketsPerResolution { - panic(fmt.Sprintf("holding more queued packets than expected; got = %d, want <= %d", numPackets, maxPendingPacketsPerResolution)) - } - } - - f.mu.packets[ch] = packets - - if ok { - return nil - } - - cancelledPackets := f.newCancelChannelLocked(ch) - - if len(cancelledPackets) != 0 { - // Dequeue the pending packets in a new goroutine to not hold up the current - // goroutine as handing link resolution failures may be a costly operation. - go f.dequeuePackets(cancelledPackets, "" /* linkAddr */, &tcpip.ErrAborted{}) - } - - return nil -} - -// newCancelChannelLocked appends the link resolution channel to a FIFO. If the -// maximum number of pending resolutions is reached, the oldest channel will be -// removed and its associated pending packets will be returned. -func (f *packetsPendingLinkResolution) newCancelChannelLocked(newCH <-chan struct{}) []pendingPacket { - f.mu.cancelChans = append(f.mu.cancelChans, newCH) - if len(f.mu.cancelChans) <= maxPendingResolutions { - return nil - } - - ch := f.mu.cancelChans[0] - f.mu.cancelChans[0] = nil - f.mu.cancelChans = f.mu.cancelChans[1:] - if l := len(f.mu.cancelChans); l > maxPendingResolutions { - panic(fmt.Sprintf("max pending resolutions reached; got %d active resolutions, max = %d", l, maxPendingResolutions)) - } - - packets, ok := f.mu.packets[ch] - if !ok { - panic("must have a packet queue for an uncancelled channel") - } - delete(f.mu.packets, ch) - - return packets -} - -func (f *packetsPendingLinkResolution) dequeuePackets(packets []pendingPacket, linkAddr tcpip.LinkAddress, err tcpip.Error) { - for _, p := range packets { - if err == nil { - p.routeInfo.RemoteLinkAddress = linkAddr - p.pkt.EgressRoute = p.routeInfo - _ = f.nic.writePacket(p.pkt) - } else { - f.incrementOutgoingPacketErrors(p.pkt) - - if linkResolvableEP, ok := f.nic.getNetworkEndpoint(p.pkt.NetworkProtocolNumber).(LinkResolvableNetworkEndpoint); ok { - linkResolvableEP.HandleLinkResolutionFailure(p.pkt) - } - } - p.pkt.DecRef() - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/rand.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/rand.go deleted file mode 100644 index c8294eb6ec..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/rand.go +++ /dev/null @@ -1,40 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "math/rand" - - "gvisor.dev/gvisor/pkg/sync" -) - -// lockedRandomSource provides a threadsafe rand.Source. -type lockedRandomSource struct { - mu sync.Mutex - src rand.Source -} - -func (r *lockedRandomSource) Int63() (n int64) { - r.mu.Lock() - n = r.src.Int63() - r.mu.Unlock() - return n -} - -func (r *lockedRandomSource) Seed(seed int64) { - r.mu.Lock() - r.src.Seed(seed) - r.mu.Unlock() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/registration.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/registration.go deleted file mode 100644 index 24f0391b69..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/registration.go +++ /dev/null @@ -1,1411 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "fmt" - "time" - - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/waiter" -) - -// NetworkEndpointID is the identifier of a network layer protocol endpoint. -// Currently the local address is sufficient because all supported protocols -// (i.e., IPv4 and IPv6) have different sizes for their addresses. -type NetworkEndpointID struct { - LocalAddress tcpip.Address -} - -// TransportEndpointID is the identifier of a transport layer protocol endpoint. -// -// +stateify savable -type TransportEndpointID struct { - // LocalPort is the local port associated with the endpoint. - LocalPort uint16 - - // LocalAddress is the local [network layer] address associated with - // the endpoint. - LocalAddress tcpip.Address - - // RemotePort is the remote port associated with the endpoint. - RemotePort uint16 - - // RemoteAddress it the remote [network layer] address associated with - // the endpoint. - RemoteAddress tcpip.Address -} - -// NetworkPacketInfo holds information about a network layer packet. -// -// +stateify savable -type NetworkPacketInfo struct { - // LocalAddressBroadcast is true if the packet's local address is a broadcast - // address. - LocalAddressBroadcast bool - - // IsForwardedPacket is true if the packet is being forwarded. - IsForwardedPacket bool -} - -// TransportErrorKind enumerates error types that are handled by the transport -// layer. -type TransportErrorKind int - -const ( - // PacketTooBigTransportError indicates that a packet did not reach its - // destination because a link on the path to the destination had an MTU that - // was too small to carry the packet. - PacketTooBigTransportError TransportErrorKind = iota - - // DestinationHostUnreachableTransportError indicates that the destination - // host was unreachable. - DestinationHostUnreachableTransportError - - // DestinationPortUnreachableTransportError indicates that a packet reached - // the destination host, but the transport protocol was not active on the - // destination port. - DestinationPortUnreachableTransportError - - // DestinationNetworkUnreachableTransportError indicates that the destination - // network was unreachable. - DestinationNetworkUnreachableTransportError - - // DestinationProtoUnreachableTransportError indicates that the destination - // protocol was unreachable. - DestinationProtoUnreachableTransportError - - // SourceRouteFailedTransportError indicates that the source route failed. - SourceRouteFailedTransportError - - // SourceHostIsolatedTransportError indicates that the source machine is not - // on the network. - SourceHostIsolatedTransportError - - // DestinationHostDownTransportError indicates that the destination host is - // down. - DestinationHostDownTransportError -) - -// TransportError is a marker interface for errors that may be handled by the -// transport layer. -type TransportError interface { - tcpip.SockErrorCause - - // Kind returns the type of the transport error. - Kind() TransportErrorKind -} - -// TransportEndpoint is the interface that needs to be implemented by transport -// protocol (e.g., tcp, udp) endpoints that can handle packets. -type TransportEndpoint interface { - // HandlePacket is called by the stack when new packets arrive to this - // transport endpoint. It sets the packet buffer's transport header. - // - // HandlePacket may modify the packet. - HandlePacket(TransportEndpointID, *PacketBuffer) - - // HandleError is called when the transport endpoint receives an error. - // - // HandleError takes may modify the packet buffer. - HandleError(TransportError, *PacketBuffer) - - // Abort initiates an expedited endpoint teardown. It puts the endpoint - // in a closed state and frees all resources associated with it. This - // cleanup may happen asynchronously. Wait can be used to block on this - // asynchronous cleanup. - Abort() - - // Wait waits for any worker goroutines owned by the endpoint to stop. - // - // An endpoint can be requested to stop its worker goroutines by calling - // its Close method. - // - // Wait will not block if the endpoint hasn't started any goroutines - // yet, even if it might later. - Wait() -} - -// RawTransportEndpoint is the interface that needs to be implemented by raw -// transport protocol endpoints. RawTransportEndpoints receive the entire -// packet - including the network and transport headers - as delivered to -// netstack. -type RawTransportEndpoint interface { - // HandlePacket is called by the stack when new packets arrive to - // this transport endpoint. The packet contains all data from the link - // layer up. - // - // HandlePacket may modify the packet. - HandlePacket(*PacketBuffer) -} - -// PacketEndpoint is the interface that needs to be implemented by packet -// transport protocol endpoints. These endpoints receive link layer headers in -// addition to whatever they contain (usually network and transport layer -// headers and a payload). -type PacketEndpoint interface { - // HandlePacket is called by the stack when new packets arrive that - // match the endpoint. - // - // Implementers should treat packet as immutable and should copy it - // before before modification. - // - // linkHeader may have a length of 0, in which case the PacketEndpoint - // should construct its own ethernet header for applications. - // - // HandlePacket may modify pkt. - HandlePacket(nicID tcpip.NICID, netProto tcpip.NetworkProtocolNumber, pkt *PacketBuffer) -} - -// UnknownDestinationPacketDisposition enumerates the possible return values from -// HandleUnknownDestinationPacket(). -type UnknownDestinationPacketDisposition int - -const ( - // UnknownDestinationPacketMalformed denotes that the packet was malformed - // and no further processing should be attempted other than updating - // statistics. - UnknownDestinationPacketMalformed UnknownDestinationPacketDisposition = iota - - // UnknownDestinationPacketUnhandled tells the caller that the packet was - // well formed but that the issue was not handled and the stack should take - // the default action. - UnknownDestinationPacketUnhandled - - // UnknownDestinationPacketHandled tells the caller that it should do - // no further processing. - UnknownDestinationPacketHandled -) - -// TransportProtocol is the interface that needs to be implemented by transport -// protocols (e.g., tcp, udp) that want to be part of the networking stack. -type TransportProtocol interface { - // Number returns the transport protocol number. - Number() tcpip.TransportProtocolNumber - - // NewEndpoint creates a new endpoint of the transport protocol. - NewEndpoint(netProto tcpip.NetworkProtocolNumber, waitQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) - - // NewRawEndpoint creates a new raw endpoint of the transport protocol. - NewRawEndpoint(netProto tcpip.NetworkProtocolNumber, waitQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) - - // MinimumPacketSize returns the minimum valid packet size of this - // transport protocol. The stack automatically drops any packets smaller - // than this targeted at this protocol. - MinimumPacketSize() int - - // ParsePorts returns the source and destination ports stored in a - // packet of this protocol. - ParsePorts(b []byte) (src, dst uint16, err tcpip.Error) - - // HandleUnknownDestinationPacket handles packets targeted at this - // protocol that don't match any existing endpoint. For example, - // it is targeted at a port that has no listeners. - // - // HandleUnknownDestinationPacket may modify the packet if it handles - // the issue. - HandleUnknownDestinationPacket(TransportEndpointID, *PacketBuffer) UnknownDestinationPacketDisposition - - // SetOption allows enabling/disabling protocol specific features. - // SetOption returns an error if the option is not supported or the - // provided option value is invalid. - SetOption(option tcpip.SettableTransportProtocolOption) tcpip.Error - - // Option allows retrieving protocol specific option values. - // Option returns an error if the option is not supported or the - // provided option value is invalid. - Option(option tcpip.GettableTransportProtocolOption) tcpip.Error - - // Close requests that any worker goroutines owned by the protocol - // stop. - Close() - - // Wait waits for any worker goroutines owned by the protocol to stop. - Wait() - - // Pause requests that any protocol level background workers pause. - Pause() - - // Resume resumes any protocol level background workers that were - // previously paused by Pause. - Resume() - - // Parse sets pkt.TransportHeader and trims pkt.Data appropriately. It does - // neither and returns false if pkt.Data is too small, i.e. pkt.Data.Size() < - // MinimumPacketSize() - Parse(pkt *PacketBuffer) (ok bool) -} - -// TransportPacketDisposition is the result from attempting to deliver a packet -// to the transport layer. -type TransportPacketDisposition int - -const ( - // TransportPacketHandled indicates that a transport packet was handled by the - // transport layer and callers need not take any further action. - TransportPacketHandled TransportPacketDisposition = iota - - // TransportPacketProtocolUnreachable indicates that the transport - // protocol requested in the packet is not supported. - TransportPacketProtocolUnreachable - - // TransportPacketDestinationPortUnreachable indicates that there weren't any - // listeners interested in the packet and the transport protocol has no means - // to notify the sender. - TransportPacketDestinationPortUnreachable -) - -// TransportDispatcher contains the methods used by the network stack to deliver -// packets to the appropriate transport endpoint after it has been handled by -// the network layer. -type TransportDispatcher interface { - // DeliverTransportPacket delivers packets to the appropriate - // transport protocol endpoint. - // - // pkt.NetworkHeader must be set before calling DeliverTransportPacket. - // - // DeliverTransportPacket may modify the packet. - DeliverTransportPacket(tcpip.TransportProtocolNumber, *PacketBuffer) TransportPacketDisposition - - // DeliverTransportError delivers an error to the appropriate transport - // endpoint. - // - // DeliverTransportError may modify the packet buffer. - DeliverTransportError(local, remote tcpip.Address, _ tcpip.NetworkProtocolNumber, _ tcpip.TransportProtocolNumber, _ TransportError, _ *PacketBuffer) - - // DeliverRawPacket delivers a packet to any subscribed raw sockets. - // - // DeliverRawPacket does NOT take ownership of the packet buffer. - DeliverRawPacket(tcpip.TransportProtocolNumber, *PacketBuffer) -} - -// PacketLooping specifies where an outbound packet should be sent. -type PacketLooping byte - -const ( - // PacketOut indicates that the packet should be passed to the link - // endpoint. - PacketOut PacketLooping = 1 << iota - - // PacketLoop indicates that the packet should be handled locally. - PacketLoop -) - -// NetworkHeaderParams are the header parameters given as input by the -// transport endpoint to the network. -type NetworkHeaderParams struct { - // Protocol refers to the transport protocol number. - Protocol tcpip.TransportProtocolNumber - - // TTL refers to Time To Live field of the IP-header. - TTL uint8 - - // TOS refers to TypeOfService or TrafficClass field of the IP-header. - TOS uint8 - - // DF indicates whether the DF bit should be set. - DF bool -} - -// GroupAddressableEndpoint is an endpoint that supports group addressing. -// -// An endpoint is considered to support group addressing when one or more -// endpoints may associate themselves with the same identifier (group address). -type GroupAddressableEndpoint interface { - // JoinGroup joins the specified group. - JoinGroup(group tcpip.Address) tcpip.Error - - // LeaveGroup attempts to leave the specified group. - LeaveGroup(group tcpip.Address) tcpip.Error - - // IsInGroup returns true if the endpoint is a member of the specified group. - IsInGroup(group tcpip.Address) bool -} - -// PrimaryEndpointBehavior is an enumeration of an AddressEndpoint's primary -// behavior. -type PrimaryEndpointBehavior int - -const ( - // CanBePrimaryEndpoint indicates the endpoint can be used as a primary - // endpoint for new connections with no local address. - CanBePrimaryEndpoint PrimaryEndpointBehavior = iota - - // FirstPrimaryEndpoint indicates the endpoint should be the first - // primary endpoint considered. If there are multiple endpoints with - // this behavior, they are ordered by recency. - FirstPrimaryEndpoint - - // NeverPrimaryEndpoint indicates the endpoint should never be a - // primary endpoint. - NeverPrimaryEndpoint -) - -func (peb PrimaryEndpointBehavior) String() string { - switch peb { - case CanBePrimaryEndpoint: - return "CanBePrimaryEndpoint" - case FirstPrimaryEndpoint: - return "FirstPrimaryEndpoint" - case NeverPrimaryEndpoint: - return "NeverPrimaryEndpoint" - default: - panic(fmt.Sprintf("unknown primary endpoint behavior: %d", peb)) - } -} - -// AddressConfigType is the method used to add an address. -type AddressConfigType int - -const ( - // AddressConfigStatic is a statically configured address endpoint that was - // added by some user-specified action (adding an explicit address, joining a - // multicast group). - AddressConfigStatic AddressConfigType = iota - - // AddressConfigSlaac is an address endpoint added by SLAAC, as per RFC 4862 - // section 5.5.3. - AddressConfigSlaac -) - -// AddressLifetimes encodes an address' preferred and valid lifetimes, as well -// as if the address is deprecated. -// -// +stateify savable -type AddressLifetimes struct { - // Deprecated is whether the address is deprecated. - Deprecated bool - - // PreferredUntil is the time at which the address will be deprecated. - // - // Note that for certain addresses, deprecating the address at the - // PreferredUntil time is not handled as a scheduled job by the stack, but - // is information provided by the owner as an indication of when it will - // deprecate the address. - // - // PreferredUntil should be ignored if Deprecated is true. If Deprecated - // is false, and PreferredUntil is the zero value, no information about - // the preferred lifetime can be inferred. - PreferredUntil tcpip.MonotonicTime - - // ValidUntil is the time at which the address will be invalidated. - // - // Note that for certain addresses, invalidating the address at the - // ValidUntil time is not handled as a scheduled job by the stack, but - // is information provided by the owner as an indication of when it will - // invalidate the address. - // - // If ValidUntil is the zero value, no information about the valid lifetime - // can be inferred. - ValidUntil tcpip.MonotonicTime -} - -// AddressProperties contains additional properties that can be configured when -// adding an address. -type AddressProperties struct { - PEB PrimaryEndpointBehavior - ConfigType AddressConfigType - // Lifetimes encodes the address' lifetimes. - // - // Lifetimes.PreferredUntil and Lifetimes.ValidUntil are informational, i.e. - // the stack will not deprecated nor invalidate the address upon reaching - // these timestamps. - // - // If Lifetimes.Deprecated is true, the address will be added as deprecated. - Lifetimes AddressLifetimes - // Temporary is as defined in RFC 4941, but applies not only to addresses - // added via SLAAC, e.g. DHCPv6 can also add temporary addresses. Temporary - // addresses are short-lived and are not to be valid (or preferred) - // forever; hence the term temporary. - Temporary bool - Disp AddressDispatcher -} - -// AddressAssignmentState is an address' assignment state. -type AddressAssignmentState int - -const ( - _ AddressAssignmentState = iota - - // AddressDisabled indicates the NIC the address is assigned to is disabled. - AddressDisabled - - // AddressTentative indicates an address is yet to pass DAD (IPv4 addresses - // are never tentative). - AddressTentative - - // AddressAssigned indicates an address is assigned. - AddressAssigned -) - -func (state AddressAssignmentState) String() string { - switch state { - case AddressDisabled: - return "Disabled" - case AddressTentative: - return "Tentative" - case AddressAssigned: - return "Assigned" - default: - panic(fmt.Sprintf("unknown address assignment state: %d", state)) - } -} - -// AddressRemovalReason is the reason an address was removed. -type AddressRemovalReason int - -const ( - _ AddressRemovalReason = iota - - // AddressRemovalManualAction indicates the address was removed explicitly - // using the stack API. - AddressRemovalManualAction - - // AddressRemovalInterfaceRemoved indicates the address was removed because - // the NIC it is assigned to was removed. - AddressRemovalInterfaceRemoved - - // AddressRemovalDADFailed indicates the address was removed because DAD - // failed. - AddressRemovalDADFailed - - // AddressRemovalInvalidated indicates the address was removed because it - // was invalidated. - AddressRemovalInvalidated -) - -func (reason AddressRemovalReason) String() string { - switch reason { - case AddressRemovalManualAction: - return "ManualAction" - case AddressRemovalInterfaceRemoved: - return "InterfaceRemoved" - case AddressRemovalDADFailed: - return "DADFailed" - case AddressRemovalInvalidated: - return "Invalidated" - default: - panic(fmt.Sprintf("unknown address removal reason: %d", reason)) - } -} - -// AddressDispatcher is the interface integrators can implement to receive -// address-related events. -type AddressDispatcher interface { - // OnChanged is called with an address' properties when they change. - // - // OnChanged is called once when the address is added with the initial state, - // and every time a property changes. - // - // The PreferredUntil and ValidUntil fields in AddressLifetimes must be - // considered informational, i.e. one must not consider an address to be - // deprecated/invalid even if the monotonic clock timestamp is past these - // deadlines. The Deprecated field indicates whether an address is - // preferred or not; and OnRemoved will be called when an address is - // removed due to invalidation. - OnChanged(AddressLifetimes, AddressAssignmentState) - - // OnRemoved is called when an address is removed with the removal reason. - OnRemoved(AddressRemovalReason) -} - -// AssignableAddressEndpoint is a reference counted address endpoint that may be -// assigned to a NetworkEndpoint. -type AssignableAddressEndpoint interface { - // AddressWithPrefix returns the endpoint's address. - AddressWithPrefix() tcpip.AddressWithPrefix - - // Subnet returns the subnet of the endpoint's address. - Subnet() tcpip.Subnet - - // IsAssigned returns whether or not the endpoint is considered bound - // to its NetworkEndpoint. - IsAssigned(allowExpired bool) bool - - // TryIncRef tries to increment this endpoint's reference count. - // - // Returns true if it was successfully incremented. If it returns false, then - // the endpoint is considered expired and should no longer be used. - TryIncRef() bool - - // DecRef decrements this endpoint's reference count. - DecRef() -} - -// AddressEndpoint is an endpoint representing an address assigned to an -// AddressableEndpoint. -type AddressEndpoint interface { - AssignableAddressEndpoint - - // GetKind returns the address kind for this endpoint. - GetKind() AddressKind - - // SetKind sets the address kind for this endpoint. - SetKind(AddressKind) - - // ConfigType returns the method used to add the address. - ConfigType() AddressConfigType - - // Deprecated returns whether or not this endpoint is deprecated. - Deprecated() bool - - // SetDeprecated sets this endpoint's deprecated status. - SetDeprecated(bool) - - // Lifetimes returns this endpoint's lifetimes. - Lifetimes() AddressLifetimes - - // SetLifetimes sets this endpoint's lifetimes. - // - // Note that setting preferred-until and valid-until times do not result in - // deprecation/invalidation jobs to be scheduled by the stack. - SetLifetimes(AddressLifetimes) - - // Temporary returns whether or not this endpoint is temporary. - Temporary() bool - - // RegisterDispatcher registers an address dispatcher. - // - // OnChanged will be called immediately on the provided address dispatcher - // with this endpoint's current state. - RegisterDispatcher(AddressDispatcher) -} - -// AddressKind is the kind of an address. -// -// See the values of AddressKind for more details. -type AddressKind int - -const ( - // PermanentTentative is a permanent address endpoint that is not yet - // considered to be fully bound to an interface in the traditional - // sense. That is, the address is associated with a NIC, but packets - // destined to the address MUST NOT be accepted and MUST be silently - // dropped, and the address MUST NOT be used as a source address for - // outgoing packets. For IPv6, addresses are of this kind until NDP's - // Duplicate Address Detection (DAD) resolves. If DAD fails, the address - // is removed. - PermanentTentative AddressKind = iota - - // Permanent is a permanent endpoint (vs. a temporary one) assigned to the - // NIC. Its reference count is biased by 1 to avoid removal when no route - // holds a reference to it. It is removed by explicitly removing the address - // from the NIC. - Permanent - - // PermanentExpired is a permanent endpoint that had its address removed from - // the NIC, and it is waiting to be removed once no references to it are held. - // - // If the address is re-added before the endpoint is removed, its type - // changes back to Permanent. - PermanentExpired - - // Temporary is an endpoint, created on a one-off basis to temporarily - // consider the NIC bound an an address that it is not explicitly bound to - // (such as a permanent address). Its reference count must not be biased by 1 - // so that the address is removed immediately when references to it are no - // longer held. - // - // A temporary endpoint may be promoted to permanent if the address is added - // permanently. - Temporary -) - -// IsPermanent returns true if the AddressKind represents a permanent address. -func (k AddressKind) IsPermanent() bool { - switch k { - case Permanent, PermanentTentative: - return true - case Temporary, PermanentExpired: - return false - default: - panic(fmt.Sprintf("unrecognized address kind = %d", k)) - } -} - -// AddressableEndpoint is an endpoint that supports addressing. -// -// An endpoint is considered to support addressing when the endpoint may -// associate itself with an identifier (address). -type AddressableEndpoint interface { - // AddAndAcquirePermanentAddress adds the passed permanent address. - // - // Returns *tcpip.ErrDuplicateAddress if the address exists. - // - // Acquires and returns the AddressEndpoint for the added address. - AddAndAcquirePermanentAddress(addr tcpip.AddressWithPrefix, properties AddressProperties) (AddressEndpoint, tcpip.Error) - - // RemovePermanentAddress removes the passed address if it is a permanent - // address. - // - // Returns *tcpip.ErrBadLocalAddress if the endpoint does not have the passed - // permanent address. - RemovePermanentAddress(addr tcpip.Address) tcpip.Error - - // SetLifetimes sets an address' lifetimes (strictly informational) and - // whether it should be deprecated or preferred. - // - // Returns *tcpip.ErrBadLocalAddress if the endpoint does not have the passed - // address. - SetLifetimes(addr tcpip.Address, lifetimes AddressLifetimes) tcpip.Error - - // MainAddress returns the endpoint's primary permanent address. - MainAddress() tcpip.AddressWithPrefix - - // AcquireAssignedAddress returns an address endpoint for the passed address - // that is considered bound to the endpoint, optionally creating a temporary - // endpoint if requested and no existing address exists. - // - // The returned endpoint's reference count is incremented if readOnly is - // false. - // - // Returns nil if the specified address is not local to this endpoint. - AcquireAssignedAddress(localAddr tcpip.Address, allowTemp bool, tempPEB PrimaryEndpointBehavior, readOnly bool) AddressEndpoint - - // AcquireOutgoingPrimaryAddress returns a primary address that may be used as - // a source address when sending packets to the passed remote address. - // - // If allowExpired is true, expired addresses may be returned. - // - // The returned endpoint's reference count is incremented. - // - // Returns nil if a primary address is not available. - AcquireOutgoingPrimaryAddress(remoteAddr, srcHint tcpip.Address, allowExpired bool) AddressEndpoint - - // PrimaryAddresses returns the primary addresses. - PrimaryAddresses() []tcpip.AddressWithPrefix - - // PermanentAddresses returns all the permanent addresses. - PermanentAddresses() []tcpip.AddressWithPrefix -} - -// NDPEndpoint is a network endpoint that supports NDP. -type NDPEndpoint interface { - NetworkEndpoint - - // InvalidateDefaultRouter invalidates a default router discovered through - // NDP. - InvalidateDefaultRouter(tcpip.Address) -} - -// NetworkInterface is a network interface. -type NetworkInterface interface { - NetworkLinkEndpoint - - // ID returns the interface's ID. - ID() tcpip.NICID - - // IsLoopback returns true if the interface is a loopback interface. - IsLoopback() bool - - // Name returns the name of the interface. - // - // May return an empty string if the interface is not configured with a name. - Name() string - - // Enabled returns true if the interface is enabled. - Enabled() bool - - // Promiscuous returns true if the interface is in promiscuous mode. - // - // When in promiscuous mode, the interface should accept all packets. - Promiscuous() bool - - // Spoofing returns true if the interface is in spoofing mode. - // - // When in spoofing mode, the interface should consider all addresses as - // assigned to it. - Spoofing() bool - - // PrimaryAddress returns the primary address associated with the interface. - // - // PrimaryAddress will return the first non-deprecated address if such an - // address exists. If no non-deprecated addresses exist, the first deprecated - // address will be returned. If no deprecated addresses exist, the zero value - // will be returned. - PrimaryAddress(tcpip.NetworkProtocolNumber) (tcpip.AddressWithPrefix, tcpip.Error) - - // CheckLocalAddress returns true if the address exists on the interface. - CheckLocalAddress(tcpip.NetworkProtocolNumber, tcpip.Address) bool - - // WritePacketToRemote writes the packet to the given remote link address. - WritePacketToRemote(tcpip.LinkAddress, *PacketBuffer) tcpip.Error - - // WritePacket writes a packet through the given route. - // - // WritePacket may modify the packet buffer. The packet buffer's - // network and transport header must be set. - WritePacket(*Route, *PacketBuffer) tcpip.Error - - // HandleNeighborProbe processes an incoming neighbor probe (e.g. ARP - // request or NDP Neighbor Solicitation). - // - // HandleNeighborProbe assumes that the probe is valid for the network - // interface the probe was received on. - HandleNeighborProbe(tcpip.NetworkProtocolNumber, tcpip.Address, tcpip.LinkAddress) tcpip.Error - - // HandleNeighborConfirmation processes an incoming neighbor confirmation - // (e.g. ARP reply or NDP Neighbor Advertisement). - HandleNeighborConfirmation(tcpip.NetworkProtocolNumber, tcpip.Address, tcpip.LinkAddress, ReachabilityConfirmationFlags) tcpip.Error -} - -// LinkResolvableNetworkEndpoint handles link resolution events. -type LinkResolvableNetworkEndpoint interface { - // HandleLinkResolutionFailure is called when link resolution prevents the - // argument from having been sent. - HandleLinkResolutionFailure(*PacketBuffer) -} - -// NetworkEndpoint is the interface that needs to be implemented by endpoints -// of network layer protocols (e.g., ipv4, ipv6). -type NetworkEndpoint interface { - // Enable enables the endpoint. - // - // Must only be called when the stack is in a state that allows the endpoint - // to send and receive packets. - // - // Returns *tcpip.ErrNotPermitted if the endpoint cannot be enabled. - Enable() tcpip.Error - - // Enabled returns true if the endpoint is enabled. - Enabled() bool - - // Disable disables the endpoint. - Disable() - - // DefaultTTL is the default time-to-live value (or hop limit, in ipv6) - // for this endpoint. - DefaultTTL() uint8 - - // MTU is the maximum transmission unit for this endpoint. This is - // generally calculated as the MTU of the underlying data link endpoint - // minus the network endpoint max header length. - MTU() uint32 - - // MaxHeaderLength returns the maximum size the network (and lower - // level layers combined) headers can have. Higher levels use this - // information to reserve space in the front of the packets they're - // building. - MaxHeaderLength() uint16 - - // WritePacket writes a packet to the given destination address and - // protocol. It may modify pkt. pkt.TransportHeader must have - // already been set. - WritePacket(r *Route, params NetworkHeaderParams, pkt *PacketBuffer) tcpip.Error - - // WriteHeaderIncludedPacket writes a packet that includes a network - // header to the given destination address. It may modify pkt. - WriteHeaderIncludedPacket(r *Route, pkt *PacketBuffer) tcpip.Error - - // HandlePacket is called by the link layer when new packets arrive to - // this network endpoint. It sets pkt.NetworkHeader. - // - // HandlePacket may modify pkt. - HandlePacket(pkt *PacketBuffer) - - // Close is called when the endpoint is removed from a stack. - Close() - - // NetworkProtocolNumber returns the tcpip.NetworkProtocolNumber for - // this endpoint. - NetworkProtocolNumber() tcpip.NetworkProtocolNumber - - // Stats returns a reference to the network endpoint stats. - Stats() NetworkEndpointStats -} - -// NetworkEndpointStats is the interface implemented by each network endpoint -// stats struct. -type NetworkEndpointStats interface { - // IsNetworkEndpointStats is an empty method to implement the - // NetworkEndpointStats marker interface. - IsNetworkEndpointStats() -} - -// IPNetworkEndpointStats is a NetworkEndpointStats that tracks IP-related -// statistics. -type IPNetworkEndpointStats interface { - NetworkEndpointStats - - // IPStats returns the IP statistics of a network endpoint. - IPStats() *tcpip.IPStats -} - -// ForwardingNetworkEndpoint is a network endpoint that may forward packets. -type ForwardingNetworkEndpoint interface { - NetworkEndpoint - - // Forwarding returns the forwarding configuration. - Forwarding() bool - - // SetForwarding sets the forwarding configuration. - // - // Returns the previous forwarding configuration. - SetForwarding(bool) bool -} - -// MulticastForwardingNetworkEndpoint is a network endpoint that may forward -// multicast packets. -type MulticastForwardingNetworkEndpoint interface { - ForwardingNetworkEndpoint - - // MulticastForwarding returns true if multicast forwarding is enabled. - // Otherwise, returns false. - MulticastForwarding() bool - - // SetMulticastForwarding sets the multicast forwarding configuration. - // - // Returns the previous forwarding configuration. - SetMulticastForwarding(bool) bool -} - -// NetworkProtocol is the interface that needs to be implemented by network -// protocols (e.g., ipv4, ipv6) that want to be part of the networking stack. -type NetworkProtocol interface { - // Number returns the network protocol number. - Number() tcpip.NetworkProtocolNumber - - // MinimumPacketSize returns the minimum valid packet size of this - // network protocol. The stack automatically drops any packets smaller - // than this targeted at this protocol. - MinimumPacketSize() int - - // ParseAddresses returns the source and destination addresses stored in a - // packet of this protocol. - ParseAddresses(b []byte) (src, dst tcpip.Address) - - // NewEndpoint creates a new endpoint of this protocol. - NewEndpoint(nic NetworkInterface, dispatcher TransportDispatcher) NetworkEndpoint - - // SetOption allows enabling/disabling protocol specific features. - // SetOption returns an error if the option is not supported or the - // provided option value is invalid. - SetOption(option tcpip.SettableNetworkProtocolOption) tcpip.Error - - // Option allows retrieving protocol specific option values. - // Option returns an error if the option is not supported or the - // provided option value is invalid. - Option(option tcpip.GettableNetworkProtocolOption) tcpip.Error - - // Close requests that any worker goroutines owned by the protocol - // stop. - Close() - - // Wait waits for any worker goroutines owned by the protocol to stop. - Wait() - - // Parse sets pkt.NetworkHeader and trims pkt.Data appropriately. It - // returns: - // - The encapsulated protocol, if present. - // - Whether there is an encapsulated transport protocol payload (e.g. ARP - // does not encapsulate anything). - // - Whether pkt.Data was large enough to parse and set pkt.NetworkHeader. - Parse(pkt *PacketBuffer) (proto tcpip.TransportProtocolNumber, hasTransportHdr bool, ok bool) -} - -// UnicastSourceAndMulticastDestination is a tuple that represents a unicast -// source address and a multicast destination address. -// -// +stateify savable -type UnicastSourceAndMulticastDestination struct { - // Source represents a unicast source address. - Source tcpip.Address - // Destination represents a multicast destination address. - Destination tcpip.Address -} - -// MulticastRouteOutgoingInterface represents an outgoing interface in a -// multicast route. -type MulticastRouteOutgoingInterface struct { - // ID corresponds to the outgoing NIC. - ID tcpip.NICID - - // MinTTL represents the minimum TTL/HopLimit a multicast packet must have to - // be sent through the outgoing interface. - // - // Note: a value of 0 allows all packets to be forwarded. - MinTTL uint8 -} - -// MulticastRoute is a multicast route. -type MulticastRoute struct { - // ExpectedInputInterface is the interface on which packets using this route - // are expected to ingress. - ExpectedInputInterface tcpip.NICID - - // OutgoingInterfaces is the set of interfaces that a multicast packet should - // be forwarded out of. - // - // This field should not be empty. - OutgoingInterfaces []MulticastRouteOutgoingInterface -} - -// MulticastForwardingNetworkProtocol is the interface that needs to be -// implemented by the network protocols that support multicast forwarding. -type MulticastForwardingNetworkProtocol interface { - NetworkProtocol - - // AddMulticastRoute adds a route to the multicast routing table such that - // packets matching the addresses will be forwarded using the provided route. - // - // Returns an error if the addresses or route is invalid. - AddMulticastRoute(UnicastSourceAndMulticastDestination, MulticastRoute) tcpip.Error - - // RemoveMulticastRoute removes the route matching the provided addresses - // from the multicast routing table. - // - // Returns an error if the addresses are invalid or a matching route is not - // found. - RemoveMulticastRoute(UnicastSourceAndMulticastDestination) tcpip.Error - - // MulticastRouteLastUsedTime returns a monotonic timestamp that - // represents the last time that the route matching the provided addresses - // was used or updated. - // - // Returns an error if the addresses are invalid or a matching route was not - // found. - MulticastRouteLastUsedTime(UnicastSourceAndMulticastDestination) (tcpip.MonotonicTime, tcpip.Error) - - // EnableMulticastForwarding enables multicast forwarding for the protocol. - // - // Returns an error if the provided multicast forwarding event dispatcher is - // nil. Otherwise, returns true if the multicast forwarding was already - // enabled. - EnableMulticastForwarding(MulticastForwardingEventDispatcher) (bool, tcpip.Error) - - // DisableMulticastForwarding disables multicast forwarding for the protocol. - DisableMulticastForwarding() -} - -// MulticastPacketContext is the context in which a multicast packet triggered -// a multicast forwarding event. -type MulticastPacketContext struct { - // SourceAndDestination contains the unicast source address and the multicast - // destination address found in the relevant multicast packet. - SourceAndDestination UnicastSourceAndMulticastDestination - // InputInterface is the interface on which the relevant multicast packet - // arrived. - InputInterface tcpip.NICID -} - -// MulticastForwardingEventDispatcher is the interface that integrators should -// implement to handle multicast routing events. -type MulticastForwardingEventDispatcher interface { - // OnMissingRoute is called when an incoming multicast packet does not match - // any installed route. - // - // The packet that triggered this event may be queued so that it can be - // transmitted once a route is installed. Even then, it may still be dropped - // as per the routing table's GC/eviction policy. - OnMissingRoute(MulticastPacketContext) - - // OnUnexpectedInputInterface is called when a multicast packet arrives at an - // interface that does not match the installed route's expected input - // interface. - // - // This may be an indication of a routing loop. The packet that triggered - // this event is dropped without being forwarded. - OnUnexpectedInputInterface(context MulticastPacketContext, expectedInputInterface tcpip.NICID) -} - -// NetworkDispatcher contains the methods used by the network stack to deliver -// inbound/outbound packets to the appropriate network/packet(if any) endpoints. -type NetworkDispatcher interface { - // DeliverNetworkPacket finds the appropriate network protocol endpoint - // and hands the packet over for further processing. - // - // - // If the link-layer has a header, the packet's link header must be populated. - // - // DeliverNetworkPacket may modify pkt. - DeliverNetworkPacket(protocol tcpip.NetworkProtocolNumber, pkt *PacketBuffer) - - // DeliverLinkPacket delivers a packet to any interested packet endpoints. - // - // This method should be called with both incoming and outgoing packets. - // - // If the link-layer has a header, the packet's link header must be populated. - DeliverLinkPacket(protocol tcpip.NetworkProtocolNumber, pkt *PacketBuffer) -} - -// LinkEndpointCapabilities is the type associated with the capabilities -// supported by a link-layer endpoint. It is a set of bitfields. -type LinkEndpointCapabilities uint - -// The following are the supported link endpoint capabilities. -const ( - CapabilityNone LinkEndpointCapabilities = 0 - // CapabilityTXChecksumOffload indicates that the link endpoint supports - // checksum computation for outgoing packets and the stack can skip - // computing checksums when sending packets. - CapabilityTXChecksumOffload LinkEndpointCapabilities = 1 << iota - // CapabilityRXChecksumOffload indicates that the link endpoint supports - // checksum verification on received packets and that it's safe for the - // stack to skip checksum verification. - CapabilityRXChecksumOffload - CapabilityResolutionRequired - CapabilitySaveRestore - CapabilityDisconnectOk - CapabilityLoopback -) - -// LinkWriter is an interface that supports sending packets via a data-link -// layer endpoint. It is used with QueueingDiscipline to batch writes from -// upper layer endpoints. -type LinkWriter interface { - // WritePackets writes packets. Must not be called with an empty list of - // packet buffers. - // - // Each packet must have the link-layer header set, if the link requires - // one. - // - // WritePackets may modify the packet buffers, and takes ownership of the PacketBufferList. - // it is not safe to use the PacketBufferList after a call to WritePackets. - WritePackets(PacketBufferList) (int, tcpip.Error) -} - -// NetworkLinkEndpoint is a data-link layer that supports sending network -// layer packets. -type NetworkLinkEndpoint interface { - // MTU is the maximum transmission unit for this endpoint. This is - // usually dictated by the backing physical network; when such a - // physical network doesn't exist, the limit is generally 64k, which - // includes the maximum size of an IP packet. - MTU() uint32 - - // SetMTU update the maximum transmission unit for the endpoint. - SetMTU(mtu uint32) - - // MaxHeaderLength returns the maximum size the data link (and - // lower level layers combined) headers can have. Higher levels use this - // information to reserve space in the front of the packets they're - // building. - MaxHeaderLength() uint16 - - // LinkAddress returns the link address (typically a MAC) of the - // endpoint. - LinkAddress() tcpip.LinkAddress - - // SetLinkAddress updated the endpoint's link address (typically a MAC). - SetLinkAddress(addr tcpip.LinkAddress) - - // Capabilities returns the set of capabilities supported by the - // endpoint. - Capabilities() LinkEndpointCapabilities - - // Attach attaches the data link layer endpoint to the network-layer - // dispatcher of the stack. - // - // Attach is called with a nil dispatcher when the endpoint's NIC is being - // removed. - Attach(dispatcher NetworkDispatcher) - - // IsAttached returns whether a NetworkDispatcher is attached to the - // endpoint. - IsAttached() bool - - // Wait waits for any worker goroutines owned by the endpoint to stop. - // - // For now, requesting that an endpoint's worker goroutine(s) stop is - // implementation specific. - // - // Wait will not block if the endpoint hasn't started any goroutines - // yet, even if it might later. - Wait() - - // ARPHardwareType returns the ARPHRD_TYPE of the link endpoint. - // - // See: - // https://github.com/torvalds/linux/blob/aa0c9086b40c17a7ad94425b3b70dd1fdd7497bf/include/uapi/linux/if_arp.h#L30 - ARPHardwareType() header.ARPHardwareType - - // AddHeader adds a link layer header to the packet if required. - AddHeader(*PacketBuffer) - - // ParseHeader parses the link layer header to the packet. - ParseHeader(*PacketBuffer) bool - - // Close is called when the endpoint is removed from a stack. - Close() - - // SetOnCloseAction sets the action that will be exected before closing the - // endpoint. It is used to destroy a network device when its endpoint - // is closed. Endpoints that are closed only after destroying their - // network devices can implement this method as no-op. - SetOnCloseAction(func()) -} - -// QueueingDiscipline provides a queueing strategy for outgoing packets (e.g -// FIFO, LIFO, Random Early Drop etc). -type QueueingDiscipline interface { - // WritePacket writes a packet. - // - // WritePacket may modify the packet buffer. The packet buffer's - // network and transport header must be set. - // - // To participate in transparent bridging, a LinkEndpoint implementation - // should call eth.Encode with header.EthernetFields.SrcAddr set to - // pkg.EgressRoute.LocalLinkAddress if it is provided. - WritePacket(*PacketBuffer) tcpip.Error - - Close() -} - -// LinkEndpoint is the interface implemented by data link layer protocols (e.g., -// ethernet, loopback, raw) and used by network layer protocols to send packets -// out through the implementer's data link endpoint. When a link header exists, -// it sets each PacketBuffer's LinkHeader field before passing it up the -// stack. -type LinkEndpoint interface { - NetworkLinkEndpoint - LinkWriter -} - -// InjectableLinkEndpoint is a LinkEndpoint where inbound packets are -// delivered via the Inject method. -type InjectableLinkEndpoint interface { - LinkEndpoint - - // InjectInbound injects an inbound packet. - InjectInbound(protocol tcpip.NetworkProtocolNumber, pkt *PacketBuffer) - - // InjectOutbound writes a fully formed outbound packet directly to the - // link. - // - // dest is used by endpoints with multiple raw destinations. - InjectOutbound(dest tcpip.Address, packet *buffer.View) tcpip.Error -} - -// DADResult is a marker interface for the result of a duplicate address -// detection process. -type DADResult interface { - isDADResult() -} - -var _ DADResult = (*DADSucceeded)(nil) - -// DADSucceeded indicates DAD completed without finding any duplicate addresses. -type DADSucceeded struct{} - -func (*DADSucceeded) isDADResult() {} - -var _ DADResult = (*DADError)(nil) - -// DADError indicates DAD hit an error. -type DADError struct { - Err tcpip.Error -} - -func (*DADError) isDADResult() {} - -var _ DADResult = (*DADAborted)(nil) - -// DADAborted indicates DAD was aborted. -type DADAborted struct{} - -func (*DADAborted) isDADResult() {} - -var _ DADResult = (*DADDupAddrDetected)(nil) - -// DADDupAddrDetected indicates DAD detected a duplicate address. -type DADDupAddrDetected struct { - // HolderLinkAddress is the link address of the node that holds the duplicate - // address. - HolderLinkAddress tcpip.LinkAddress -} - -func (*DADDupAddrDetected) isDADResult() {} - -// DADCompletionHandler is a handler for DAD completion. -type DADCompletionHandler func(DADResult) - -// DADCheckAddressDisposition enumerates the possible return values from -// DAD.CheckDuplicateAddress. -type DADCheckAddressDisposition int - -const ( - _ DADCheckAddressDisposition = iota - - // DADDisabled indicates that DAD is disabled. - DADDisabled - - // DADStarting indicates that DAD is starting for an address. - DADStarting - - // DADAlreadyRunning indicates that DAD was already started for an address. - DADAlreadyRunning -) - -const ( - // defaultDupAddrDetectTransmits is the default number of NDP Neighbor - // Solicitation messages to send when doing Duplicate Address Detection - // for a tentative address. - // - // Default = 1 (from RFC 4862 section 5.1) - defaultDupAddrDetectTransmits = 1 -) - -// DADConfigurations holds configurations for duplicate address detection. -// -// +stateify savable -type DADConfigurations struct { - // The number of Neighbor Solicitation messages to send when doing - // Duplicate Address Detection for a tentative address. - // - // Note, a value of zero effectively disables DAD. - DupAddrDetectTransmits uint8 - - // The amount of time to wait between sending Neighbor Solicitation - // messages. - // - // Must be greater than or equal to 1ms. - RetransmitTimer time.Duration -} - -// DefaultDADConfigurations returns the default DAD configurations. -func DefaultDADConfigurations() DADConfigurations { - return DADConfigurations{ - DupAddrDetectTransmits: defaultDupAddrDetectTransmits, - RetransmitTimer: defaultRetransmitTimer, - } -} - -// Validate modifies the configuration with valid values. If invalid values are -// present in the configurations, the corresponding default values are used -// instead. -func (c *DADConfigurations) Validate() { - if c.RetransmitTimer < minimumRetransmitTimer { - c.RetransmitTimer = defaultRetransmitTimer - } -} - -// DuplicateAddressDetector handles checking if an address is already assigned -// to some neighboring node on the link. -type DuplicateAddressDetector interface { - // CheckDuplicateAddress checks if an address is assigned to a neighbor. - // - // If DAD is already being performed for the address, the handler will be - // called with the result of the original DAD request. - CheckDuplicateAddress(tcpip.Address, DADCompletionHandler) DADCheckAddressDisposition - - // SetDADConfigurations sets the configurations for DAD. - SetDADConfigurations(c DADConfigurations) - - // DuplicateAddressProtocol returns the network protocol the receiver can - // perform duplicate address detection for. - DuplicateAddressProtocol() tcpip.NetworkProtocolNumber -} - -// LinkAddressResolver handles link address resolution for a network protocol. -type LinkAddressResolver interface { - // LinkAddressRequest sends a request for the link address of the target - // address. The request is broadcast on the local network if a remote link - // address is not provided. - LinkAddressRequest(targetAddr, localAddr tcpip.Address, remoteLinkAddr tcpip.LinkAddress) tcpip.Error - - // ResolveStaticAddress attempts to resolve address without sending - // requests. It either resolves the name immediately or returns the - // empty LinkAddress. - // - // It can be used to resolve broadcast addresses for example. - ResolveStaticAddress(addr tcpip.Address) (tcpip.LinkAddress, bool) - - // LinkAddressProtocol returns the network protocol of the - // addresses this resolver can resolve. - LinkAddressProtocol() tcpip.NetworkProtocolNumber -} - -// RawFactory produces endpoints for writing various types of raw packets. -type RawFactory interface { - // NewUnassociatedEndpoint produces endpoints for writing packets not - // associated with a particular transport protocol. Such endpoints can - // be used to write arbitrary packets that include the network header. - NewUnassociatedEndpoint(stack *Stack, netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) - - // NewPacketEndpoint produces endpoints for reading and writing packets - // that include network and (when cooked is false) link layer headers. - NewPacketEndpoint(stack *Stack, cooked bool, netProto tcpip.NetworkProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) -} - -// GSOType is the type of GSO segments. -// -// +stateify savable -type GSOType int - -// Types of gso segments. -const ( - GSONone GSOType = iota - - // Hardware GSO types: - GSOTCPv4 - GSOTCPv6 - - // GSOGvisor is used for gVisor GSO segments which have to be sent by - // endpoint.WritePackets. - GSOGvisor -) - -// GSO contains generic segmentation offload properties. -// -// +stateify savable -type GSO struct { - // Type is one of GSONone, GSOTCPv4, etc. - Type GSOType - // NeedsCsum is set if the checksum offload is enabled. - NeedsCsum bool - // CsumOffset is offset after that to place checksum. - CsumOffset uint16 - - // Mss is maximum segment size. - MSS uint16 - // L3Len is L3 (IP) header length. - L3HdrLen uint16 - - // MaxSize is maximum GSO packet size. - MaxSize uint32 -} - -// SupportedGSO is the type of segmentation offloading supported. -type SupportedGSO int - -const ( - // GSONotSupported indicates that segmentation offloading is not supported. - GSONotSupported SupportedGSO = iota - - // HostGSOSupported indicates that segmentation offloading may be performed - // by the host. This is typically true when netstack is attached to a host - // AF_PACKET socket, and not true when attached to a unix socket or other - // non-networking data layer. - HostGSOSupported - - // GVisorGSOSupported indicates that segmentation offloading may be performed - // in gVisor. - GVisorGSOSupported -) - -// GSOEndpoint provides access to GSO properties. -type GSOEndpoint interface { - // GSOMaxSize returns the maximum GSO packet size. - GSOMaxSize() uint32 - - // SupportedGSO returns the supported segmentation offloading. - SupportedGSO() SupportedGSO -} - -// GVisorGSOMaxSize is a maximum allowed size of a software GSO segment. -// This isn't a hard limit, because it is never set into packet headers. -const GVisorGSOMaxSize = 1 << 16 diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/route.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/route.go deleted file mode 100644 index e571e8a1f9..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/route.go +++ /dev/null @@ -1,598 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "fmt" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" -) - -// Route represents a route through the networking stack to a given destination. -// -// It is safe to call Route's methods from multiple goroutines. -type Route struct { - routeInfo routeInfo - - // localAddressNIC is the interface the address is associated with. - // TODO(gvisor.dev/issue/4548): Remove this field once we can query the - // address's assigned status without the NIC. - localAddressNIC *nic - - // mu protects annotated fields below. - mu routeRWMutex - - // localAddressEndpoint is the local address this route is associated with. - // +checklocks:mu - localAddressEndpoint AssignableAddressEndpoint - - // remoteLinkAddress is the link-layer (MAC) address of the next hop. - // +checklocks:mu - remoteLinkAddress tcpip.LinkAddress - - // outgoingNIC is the interface this route uses to write packets. - outgoingNIC *nic - - // linkRes is set if link address resolution is enabled for this protocol on - // the route's NIC. - linkRes *linkResolver - - // neighborEntry is the cached result of fetching a neighbor entry from the - // neighbor cache. - // +checklocks:mu - neighborEntry *neighborEntry - - // mtu is the maximum transmission unit to use for this route. - // If mtu is 0, this field is ignored and the MTU of the outgoing NIC - // is used for egress packets. - mtu uint32 -} - -// +stateify savable -type routeInfo struct { - RemoteAddress tcpip.Address - - LocalAddress tcpip.Address - - LocalLinkAddress tcpip.LinkAddress - - NextHop tcpip.Address - - NetProto tcpip.NetworkProtocolNumber - - Loop PacketLooping -} - -// RemoteAddress returns the route's destination. -func (r *Route) RemoteAddress() tcpip.Address { - return r.routeInfo.RemoteAddress -} - -// LocalAddress returns the route's local address. -func (r *Route) LocalAddress() tcpip.Address { - return r.routeInfo.LocalAddress -} - -// LocalLinkAddress returns the route's local link-layer address. -func (r *Route) LocalLinkAddress() tcpip.LinkAddress { - return r.routeInfo.LocalLinkAddress -} - -// NextHop returns the next node in the route's path to the destination. -func (r *Route) NextHop() tcpip.Address { - return r.routeInfo.NextHop -} - -// NetProto returns the route's network-layer protocol number. -func (r *Route) NetProto() tcpip.NetworkProtocolNumber { - return r.routeInfo.NetProto -} - -// Loop returns the route's required packet looping. -func (r *Route) Loop() PacketLooping { - return r.routeInfo.Loop -} - -// OutgoingNIC returns the route's outgoing NIC. -func (r *Route) OutgoingNIC() tcpip.NICID { - return r.outgoingNIC.id -} - -// RouteInfo contains all of Route's exported fields. -// -// +stateify savable -type RouteInfo struct { - routeInfo - - // RemoteLinkAddress is the link-layer (MAC) address of the next hop in the - // route. - RemoteLinkAddress tcpip.LinkAddress -} - -// Fields returns a RouteInfo with all of the known values for the route's -// fields. -// -// If any fields are unknown (e.g. remote link address when it is waiting for -// link address resolution), they will be unset. -func (r *Route) Fields() RouteInfo { - r.mu.RLock() - defer r.mu.RUnlock() - return r.fieldsLocked() -} - -// +checklocksread:r.mu -func (r *Route) fieldsLocked() RouteInfo { - return RouteInfo{ - routeInfo: r.routeInfo, - RemoteLinkAddress: r.remoteLinkAddress, - } -} - -// constructAndValidateRoute validates and initializes a route. It takes -// ownership of the provided local address. -// -// Returns an empty route if validation fails. -func constructAndValidateRoute(netProto tcpip.NetworkProtocolNumber, addressEndpoint AssignableAddressEndpoint, localAddressNIC, outgoingNIC *nic, gateway, localAddr, remoteAddr tcpip.Address, handleLocal, multicastLoop bool, mtu uint32) *Route { - if localAddr.BitLen() == 0 { - localAddr = addressEndpoint.AddressWithPrefix().Address - } - - if localAddressNIC != outgoingNIC && header.IsV6LinkLocalUnicastAddress(localAddr) { - addressEndpoint.DecRef() - return nil - } - - // If no remote address is provided, use the local address. - if remoteAddr.BitLen() == 0 { - remoteAddr = localAddr - } - - r := makeRoute( - netProto, - gateway, - localAddr, - remoteAddr, - outgoingNIC, - localAddressNIC, - addressEndpoint, - handleLocal, - multicastLoop, - mtu, - ) - - return r -} - -// makeRoute initializes a new route. It takes ownership of the provided -// AssignableAddressEndpoint. -func makeRoute(netProto tcpip.NetworkProtocolNumber, gateway, localAddr, remoteAddr tcpip.Address, outgoingNIC, localAddressNIC *nic, localAddressEndpoint AssignableAddressEndpoint, handleLocal, multicastLoop bool, mtu uint32) *Route { - if localAddressNIC.stack != outgoingNIC.stack { - panic(fmt.Sprintf("cannot create a route with NICs from different stacks")) - } - - if localAddr.BitLen() == 0 { - localAddr = localAddressEndpoint.AddressWithPrefix().Address - } - - loop := PacketOut - - // Loopback interface loops back packets at the link endpoint level. We - // could remove this check if loopback interfaces looped back packets - // at the network layer. - if !outgoingNIC.IsLoopback() { - if handleLocal && localAddr != (tcpip.Address{}) && remoteAddr == localAddr { - loop = PacketLoop - } else if multicastLoop && (header.IsV4MulticastAddress(remoteAddr) || header.IsV6MulticastAddress(remoteAddr)) { - loop |= PacketLoop - } else if remoteAddr == header.IPv4Broadcast { - loop |= PacketLoop - } else if subnet := localAddressEndpoint.AddressWithPrefix().Subnet(); subnet.IsBroadcast(remoteAddr) { - loop |= PacketLoop - } - } - - r := makeRouteInner(netProto, localAddr, remoteAddr, outgoingNIC, localAddressNIC, localAddressEndpoint, loop, mtu) - if r.Loop()&PacketOut == 0 { - // Packet will not leave the stack, no need for a gateway or a remote link - // address. - return r - } - - if r.outgoingNIC.NetworkLinkEndpoint.Capabilities()&CapabilityResolutionRequired != 0 { - if linkRes, ok := r.outgoingNIC.linkAddrResolvers[r.NetProto()]; ok { - r.linkRes = linkRes - } - } - - if gateway.BitLen() > 0 { - r.routeInfo.NextHop = gateway - return r - } - - if r.linkRes == nil { - return r - } - - if linkAddr, ok := r.linkRes.resolver.ResolveStaticAddress(r.RemoteAddress()); ok { - r.ResolveWith(linkAddr) - return r - } - - if subnet := localAddressEndpoint.Subnet(); subnet.IsBroadcast(remoteAddr) { - r.ResolveWith(header.EthernetBroadcastAddress) - return r - } - - if r.RemoteAddress() == r.LocalAddress() { - // Local link address is already known. - r.ResolveWith(r.LocalLinkAddress()) - } - - return r -} - -func makeRouteInner(netProto tcpip.NetworkProtocolNumber, localAddr, remoteAddr tcpip.Address, outgoingNIC, localAddressNIC *nic, localAddressEndpoint AssignableAddressEndpoint, loop PacketLooping, mtu uint32) *Route { - r := &Route{ - routeInfo: routeInfo{ - NetProto: netProto, - LocalAddress: localAddr, - LocalLinkAddress: outgoingNIC.NetworkLinkEndpoint.LinkAddress(), - RemoteAddress: remoteAddr, - Loop: loop, - }, - localAddressNIC: localAddressNIC, - outgoingNIC: outgoingNIC, - mtu: mtu, - } - - r.mu.Lock() - r.localAddressEndpoint = localAddressEndpoint - r.mu.Unlock() - - return r -} - -// makeLocalRoute initializes a new local route. It takes ownership of the -// provided AssignableAddressEndpoint. -// -// A local route is a route to a destination that is local to the stack. -func makeLocalRoute(netProto tcpip.NetworkProtocolNumber, localAddr, remoteAddr tcpip.Address, outgoingNIC, localAddressNIC *nic, localAddressEndpoint AssignableAddressEndpoint) *Route { - loop := PacketLoop - // Loopback interface loops back packets at the link endpoint level. We - // could remove this check if loopback interfaces looped back packets - // at the network layer. - if outgoingNIC.IsLoopback() { - loop = PacketOut - } - return makeRouteInner(netProto, localAddr, remoteAddr, outgoingNIC, localAddressNIC, localAddressEndpoint, loop, 0 /* mtu */) -} - -// RemoteLinkAddress returns the link-layer (MAC) address of the next hop in -// the route. -func (r *Route) RemoteLinkAddress() tcpip.LinkAddress { - r.mu.RLock() - defer r.mu.RUnlock() - return r.remoteLinkAddress -} - -// NICID returns the id of the NIC from which this route originates. -func (r *Route) NICID() tcpip.NICID { - return r.outgoingNIC.ID() -} - -// MaxHeaderLength forwards the call to the network endpoint's implementation. -func (r *Route) MaxHeaderLength() uint16 { - return r.outgoingNIC.getNetworkEndpoint(r.NetProto()).MaxHeaderLength() -} - -// Stats returns a mutable copy of current stats. -func (r *Route) Stats() tcpip.Stats { - return r.outgoingNIC.stack.Stats() -} - -// PseudoHeaderChecksum forwards the call to the network endpoint's -// implementation. -func (r *Route) PseudoHeaderChecksum(protocol tcpip.TransportProtocolNumber, totalLen uint16) uint16 { - return header.PseudoHeaderChecksum(protocol, r.LocalAddress(), r.RemoteAddress(), totalLen) -} - -// RequiresTXTransportChecksum returns false if the route does not require -// transport checksums to be populated. -func (r *Route) RequiresTXTransportChecksum() bool { - if r.local() { - return false - } - return r.outgoingNIC.NetworkLinkEndpoint.Capabilities()&CapabilityTXChecksumOffload == 0 -} - -// HasGVisorGSOCapability returns true if the route supports gVisor GSO. -func (r *Route) HasGVisorGSOCapability() bool { - if gso, ok := r.outgoingNIC.NetworkLinkEndpoint.(GSOEndpoint); ok { - return gso.SupportedGSO() == GVisorGSOSupported - } - return false -} - -// HasHostGSOCapability returns true if the route supports host GSO. -func (r *Route) HasHostGSOCapability() bool { - if gso, ok := r.outgoingNIC.NetworkLinkEndpoint.(GSOEndpoint); ok { - return gso.SupportedGSO() == HostGSOSupported - } - return false -} - -// HasSaveRestoreCapability returns true if the route supports save/restore. -func (r *Route) HasSaveRestoreCapability() bool { - return r.outgoingNIC.NetworkLinkEndpoint.Capabilities()&CapabilitySaveRestore != 0 -} - -// HasDisconnectOkCapability returns true if the route supports disconnecting. -func (r *Route) HasDisconnectOkCapability() bool { - return r.outgoingNIC.NetworkLinkEndpoint.Capabilities()&CapabilityDisconnectOk != 0 -} - -// GSOMaxSize returns the maximum GSO packet size. -func (r *Route) GSOMaxSize() uint32 { - if gso, ok := r.outgoingNIC.NetworkLinkEndpoint.(GSOEndpoint); ok { - return gso.GSOMaxSize() - } - return 0 -} - -// ResolveWith immediately resolves a route with the specified remote link -// address. -func (r *Route) ResolveWith(addr tcpip.LinkAddress) { - r.mu.Lock() - defer r.mu.Unlock() - r.remoteLinkAddress = addr -} - -// ResolvedFieldsResult is the result of a route resolution attempt. -type ResolvedFieldsResult struct { - RouteInfo RouteInfo - Err tcpip.Error -} - -// ResolvedFields attempts to resolve the remote link address if it is not -// known. -// -// If a callback is provided, it will be called before ResolvedFields returns -// when address resolution is not required. If address resolution is required, -// the callback will be called once address resolution is complete, regardless -// of success or failure. -// -// Note, the route will not cache the remote link address when address -// resolution completes. -func (r *Route) ResolvedFields(afterResolve func(ResolvedFieldsResult)) tcpip.Error { - _, _, err := r.resolvedFields(afterResolve) - return err -} - -// resolvedFields is like ResolvedFields but also returns a notification channel -// when address resolution is required. This channel will become readable once -// address resolution is complete. -// -// The route's fields will also be returned, regardless of whether address -// resolution is required or not. -func (r *Route) resolvedFields(afterResolve func(ResolvedFieldsResult)) (RouteInfo, <-chan struct{}, tcpip.Error) { - r.mu.RLock() - fields := r.fieldsLocked() - resolutionRequired := r.isResolutionRequiredRLocked() - r.mu.RUnlock() - if !resolutionRequired { - if afterResolve != nil { - afterResolve(ResolvedFieldsResult{RouteInfo: fields, Err: nil}) - } - return fields, nil, nil - } - - // If specified, the local address used for link address resolution must be an - // address on the outgoing interface. - var linkAddressResolutionRequestLocalAddr tcpip.Address - if r.localAddressNIC == r.outgoingNIC { - linkAddressResolutionRequestLocalAddr = r.LocalAddress() - } - - nEntry := r.getCachedNeighborEntry() - if nEntry != nil { - if addr, ok := nEntry.getRemoteLinkAddress(); ok { - fields.RemoteLinkAddress = addr - if afterResolve != nil { - afterResolve(ResolvedFieldsResult{RouteInfo: fields, Err: nil}) - } - return fields, nil, nil - } - } - afterResolveFields := fields - entry, ch, err := r.linkRes.neigh.entry(r.nextHop(), linkAddressResolutionRequestLocalAddr, func(lrr LinkResolutionResult) { - if afterResolve != nil { - if lrr.Err == nil { - afterResolveFields.RemoteLinkAddress = lrr.LinkAddress - } - - afterResolve(ResolvedFieldsResult{RouteInfo: afterResolveFields, Err: lrr.Err}) - } - }) - if err == nil { - fields.RemoteLinkAddress, _ = entry.getRemoteLinkAddress() - } - r.setCachedNeighborEntry(entry) - return fields, ch, err -} - -func (r *Route) getCachedNeighborEntry() *neighborEntry { - r.mu.RLock() - defer r.mu.RUnlock() - return r.neighborEntry -} - -func (r *Route) setCachedNeighborEntry(entry *neighborEntry) { - r.mu.Lock() - defer r.mu.Unlock() - r.neighborEntry = entry -} - -func (r *Route) nextHop() tcpip.Address { - if r.NextHop().BitLen() == 0 { - return r.RemoteAddress() - } - return r.NextHop() -} - -// local returns true if the route is a local route. -func (r *Route) local() bool { - return r.Loop() == PacketLoop || r.outgoingNIC.IsLoopback() -} - -// IsResolutionRequired returns true if Resolve() must be called to resolve -// the link address before the route can be written to. -// -// The NICs the route is associated with must not be locked. -func (r *Route) IsResolutionRequired() bool { - r.mu.RLock() - defer r.mu.RUnlock() - return r.isResolutionRequiredRLocked() -} - -// +checklocksread:r.mu -func (r *Route) isResolutionRequiredRLocked() bool { - return len(r.remoteLinkAddress) == 0 && r.linkRes != nil && r.isValidForOutgoingRLocked() && !r.local() -} - -func (r *Route) isValidForOutgoing() bool { - r.mu.RLock() - defer r.mu.RUnlock() - return r.isValidForOutgoingRLocked() -} - -// +checklocksread:r.mu -func (r *Route) isValidForOutgoingRLocked() bool { - if !r.outgoingNIC.Enabled() { - return false - } - - localAddressEndpoint := r.localAddressEndpoint - if localAddressEndpoint == nil || !r.localAddressNIC.isValidForOutgoing(localAddressEndpoint) { - return false - } - - // If the source NIC and outgoing NIC are different, make sure the stack has - // forwarding enabled, or the packet will be handled locally. - if r.outgoingNIC != r.localAddressNIC && !isNICForwarding(r.localAddressNIC, r.NetProto()) && (!r.outgoingNIC.stack.handleLocal || !r.outgoingNIC.hasAddress(r.NetProto(), r.RemoteAddress())) { - return false - } - - return true -} - -// WritePacket writes the packet through the given route. -func (r *Route) WritePacket(params NetworkHeaderParams, pkt *PacketBuffer) tcpip.Error { - if !r.isValidForOutgoing() { - return &tcpip.ErrInvalidEndpointState{} - } - - return r.outgoingNIC.getNetworkEndpoint(r.NetProto()).WritePacket(r, params, pkt) -} - -// WriteHeaderIncludedPacket writes a packet already containing a network -// header through the given route. -func (r *Route) WriteHeaderIncludedPacket(pkt *PacketBuffer) tcpip.Error { - if !r.isValidForOutgoing() { - return &tcpip.ErrInvalidEndpointState{} - } - - return r.outgoingNIC.getNetworkEndpoint(r.NetProto()).WriteHeaderIncludedPacket(r, pkt) -} - -// DefaultTTL returns the default TTL of the underlying network endpoint. -func (r *Route) DefaultTTL() uint8 { - return r.outgoingNIC.getNetworkEndpoint(r.NetProto()).DefaultTTL() -} - -// MTU returns the MTU of the route if present, otherwise the MTU of the underlying network endpoint. -func (r *Route) MTU() uint32 { - if r.mtu > 0 { - return r.mtu - } - return r.outgoingNIC.getNetworkEndpoint(r.NetProto()).MTU() -} - -// Release decrements the reference counter of the resources associated with the -// route. -func (r *Route) Release() { - r.mu.Lock() - defer r.mu.Unlock() - - if ep := r.localAddressEndpoint; ep != nil { - ep.DecRef() - } -} - -// Acquire increments the reference counter of the resources associated with the -// route. -func (r *Route) Acquire() { - r.mu.RLock() - defer r.mu.RUnlock() - r.acquireLocked() -} - -// +checklocksread:r.mu -func (r *Route) acquireLocked() { - if ep := r.localAddressEndpoint; ep != nil { - if !ep.TryIncRef() { - panic(fmt.Sprintf("failed to increment reference count for local address endpoint = %s", r.LocalAddress())) - } - } -} - -// Stack returns the instance of the Stack that owns this route. -func (r *Route) Stack() *Stack { - return r.outgoingNIC.stack -} - -func (r *Route) isV4Broadcast(addr tcpip.Address) bool { - if addr == header.IPv4Broadcast { - return true - } - - r.mu.RLock() - localAddressEndpoint := r.localAddressEndpoint - r.mu.RUnlock() - if localAddressEndpoint == nil { - return false - } - - subnet := localAddressEndpoint.Subnet() - return subnet.IsBroadcast(addr) -} - -// IsOutboundBroadcast returns true if the route is for an outbound broadcast -// packet. -func (r *Route) IsOutboundBroadcast() bool { - // Only IPv4 has a notion of broadcast. - return r.isV4Broadcast(r.RemoteAddress()) -} - -// ConfirmReachable informs the network/link layer that the neighbour used for -// the route is reachable. -// -// "Reachable" is defined as having full-duplex communication between the -// local and remote ends of the route. -func (r *Route) ConfirmReachable() { - if entry := r.getCachedNeighborEntry(); entry != nil { - entry.handleUpperLevelConfirmation() - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/route_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/route_mutex.go deleted file mode 100644 index 28a5e86909..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/route_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type routeRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var routelockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type routelockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *routeRWMutex) Lock() { - locking.AddGLock(routeprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *routeRWMutex) NestedLock(i routelockNameIndex) { - locking.AddGLock(routeprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *routeRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(routeprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *routeRWMutex) NestedUnlock(i routelockNameIndex) { - m.mu.Unlock() - locking.DelGLock(routeprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *routeRWMutex) RLock() { - locking.AddGLock(routeprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *routeRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(routeprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *routeRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *routeRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *routeRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var routeprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func routeinitLockNames() {} - -func init() { - routeinitLockNames() - routeprefixIndex = locking.NewMutexClass(reflect.TypeOf(routeRWMutex{}), routelockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/route_stack_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/route_stack_mutex.go deleted file mode 100644 index ec3796c32d..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/route_stack_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type routeStackRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var routeStacklockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type routeStacklockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *routeStackRWMutex) Lock() { - locking.AddGLock(routeStackprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *routeStackRWMutex) NestedLock(i routeStacklockNameIndex) { - locking.AddGLock(routeStackprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *routeStackRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(routeStackprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *routeStackRWMutex) NestedUnlock(i routeStacklockNameIndex) { - m.mu.Unlock() - locking.DelGLock(routeStackprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *routeStackRWMutex) RLock() { - locking.AddGLock(routeStackprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *routeStackRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(routeStackprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *routeStackRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *routeStackRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *routeStackRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var routeStackprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func routeStackinitLockNames() {} - -func init() { - routeStackinitLockNames() - routeStackprefixIndex = locking.NewMutexClass(reflect.TypeOf(routeStackRWMutex{}), routeStacklockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/stack.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/stack.go deleted file mode 100644 index 7dc7cd3575..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/stack.go +++ /dev/null @@ -1,2401 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package stack provides the glue between networking protocols and the -// consumers of the networking stack. -// -// For consumers, the only function of interest is New(), everything else is -// provided by the tcpip/public package. -package stack - -import ( - "encoding/binary" - "fmt" - "io" - "math/rand" - "sync/atomic" - "time" - - "golang.org/x/time/rate" - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/log" - cryptorand "gvisor.dev/gvisor/pkg/rand" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/ports" - "gvisor.dev/gvisor/pkg/waiter" -) - -const ( - // DefaultTOS is the default type of service value for network endpoints. - DefaultTOS = 0 -) - -// +stateify savable -type transportProtocolState struct { - proto TransportProtocol - defaultHandler func(id TransportEndpointID, pkt *PacketBuffer) bool `state:"nosave"` -} - -// RestoredEndpoint is an endpoint that needs to be restored. -type RestoredEndpoint interface { - // Restore restores an endpoint. This can be used to restart background - // workers such as protocol goroutines. This must be called after all - // indirect dependencies of the endpoint has been restored, which - // generally implies at the end of the restore process. - Restore(*Stack) -} - -// ResumableEndpoint is an endpoint that needs to be resumed after save. -type ResumableEndpoint interface { - // Resume resumes an endpoint. - Resume() -} - -var netRawMissingLogger = log.BasicRateLimitedLogger(time.Minute) - -// Stack is a networking stack, with all supported protocols, NICs, and route -// table. -// -// LOCK ORDERING: mu > routeMu. -// -// +stateify savable -type Stack struct { - transportProtocols map[tcpip.TransportProtocolNumber]*transportProtocolState - networkProtocols map[tcpip.NetworkProtocolNumber]NetworkProtocol - - // rawFactory creates raw endpoints. If nil, raw endpoints are - // disabled. It is set during Stack creation and is immutable. - rawFactory RawFactory - packetEndpointWriteSupported bool - - demux *transportDemuxer - - stats tcpip.Stats - - // routeMu protects annotated fields below. - routeMu routeStackRWMutex `state:"nosave"` - - // routeTable is a list of routes sorted by prefix length, longest (most specific) first. - // +checklocks:routeMu - routeTable tcpip.RouteList - - mu stackRWMutex `state:"nosave"` - // +checklocks:mu - nics map[tcpip.NICID]*nic - // +checklocks:mu - defaultForwardingEnabled map[tcpip.NetworkProtocolNumber]struct{} - - // nicIDGen is used to generate NIC IDs. - nicIDGen atomicbitops.Int32 - - // cleanupEndpointsMu protects cleanupEndpoints. - cleanupEndpointsMu cleanupEndpointsMutex `state:"nosave"` - // +checklocks:cleanupEndpointsMu - cleanupEndpoints map[TransportEndpoint]struct{} - - *ports.PortManager - - // If not nil, then any new endpoints will have this probe function - // invoked everytime they receive a TCP segment. - // TODO(b/341946753): Restore them when netstack is savable. - tcpProbeFunc atomic.Value `state:"nosave"` // TCPProbeFunc - - // clock is used to generate user-visible times. - clock tcpip.Clock - - // handleLocal allows non-loopback interfaces to loop packets. - handleLocal bool - - // tables are the iptables packet filtering and manipulation rules. - // TODO(gvisor.dev/issue/4595): S/R this field. - tables *IPTables `state:"nosave"` - - // restoredEndpoints is a list of endpoints that need to be restored if the - // stack is being restored. - restoredEndpoints []RestoredEndpoint - - // resumableEndpoints is a list of endpoints that need to be resumed - // after save. - resumableEndpoints []ResumableEndpoint - - // icmpRateLimiter is a global rate limiter for all ICMP messages generated - // by the stack. - icmpRateLimiter *ICMPRateLimiter - - // seed is a one-time random value initialized at stack startup. - // - // TODO(gvisor.dev/issue/940): S/R this field. - seed uint32 - - // nudConfigs is the default NUD configurations used by interfaces. - nudConfigs NUDConfigurations - - // nudDisp is the NUD event dispatcher that is used to send the netstack - // integrator NUD related events. - nudDisp NUDDispatcher - - // randomGenerator is an injectable pseudo random generator that can be - // used when a random number is required. It must not be used in - // security-sensitive contexts. - // TODO(b/341946753): Restore them when netstack is savable. - insecureRNG *rand.Rand `state:"nosave"` - - // secureRNG is a cryptographically secure random number generator. - // TODO(b/341946753): Restore them when netstack is savable. - secureRNG cryptorand.RNG `state:"nosave"` - - // sendBufferSize holds the min/default/max send buffer sizes for - // endpoints other than TCP. - sendBufferSize tcpip.SendBufferSizeOption - - // receiveBufferSize holds the min/default/max receive buffer sizes for - // endpoints other than TCP. - receiveBufferSize tcpip.ReceiveBufferSizeOption - - // tcpInvalidRateLimit is the maximal rate for sending duplicate - // acknowledgements in response to incoming TCP packets that are for an existing - // connection but that are invalid due to any of the following reasons: - // - // a) out-of-window sequence number. - // b) out-of-window acknowledgement number. - // c) PAWS check failure (when implemented). - // - // This is required to prevent potential ACK loops. - // Setting this to 0 will disable all rate limiting. - tcpInvalidRateLimit time.Duration - - // tsOffsetSecret is the secret key for generating timestamp offsets - // initialized at stack startup. - tsOffsetSecret uint32 -} - -// NetworkProtocolFactory instantiates a network protocol. -// -// NetworkProtocolFactory must not attempt to modify the stack, it may only -// query the stack. -type NetworkProtocolFactory func(*Stack) NetworkProtocol - -// TransportProtocolFactory instantiates a transport protocol. -// -// TransportProtocolFactory must not attempt to modify the stack, it may only -// query the stack. -type TransportProtocolFactory func(*Stack) TransportProtocol - -// Options contains optional Stack configuration. -type Options struct { - // NetworkProtocols lists the network protocols to enable. - NetworkProtocols []NetworkProtocolFactory - - // TransportProtocols lists the transport protocols to enable. - TransportProtocols []TransportProtocolFactory - - // Clock is an optional clock used for timekeeping. - // - // If Clock is nil, tcpip.NewStdClock() will be used. - Clock tcpip.Clock - - // Stats are optional statistic counters. - Stats tcpip.Stats - - // HandleLocal indicates whether packets destined to their source - // should be handled by the stack internally (true) or outside the - // stack (false). - HandleLocal bool - - // NUDConfigs is the default NUD configurations used by interfaces. - NUDConfigs NUDConfigurations - - // NUDDisp is the NUD event dispatcher that an integrator can provide to - // receive NUD related events. - NUDDisp NUDDispatcher - - // RawFactory produces raw endpoints. Raw endpoints are enabled only if - // this is non-nil. - RawFactory RawFactory - - // AllowPacketEndpointWrite determines if packet endpoints support write - // operations. - AllowPacketEndpointWrite bool - - // RandSource is an optional source to use to generate random - // numbers. If omitted it defaults to a Source seeded by the data - // returned by the stack secure RNG. - // - // RandSource must be thread-safe. - RandSource rand.Source - - // IPTables are the initial iptables rules. If nil, DefaultIPTables will be - // used to construct the initial iptables rules. - // all traffic. - IPTables *IPTables - - // DefaultIPTables is an optional iptables rules constructor that is called - // if IPTables is nil. If both fields are nil, iptables will allow all - // traffic. - DefaultIPTables func(clock tcpip.Clock, rand *rand.Rand) *IPTables - - // SecureRNG is a cryptographically secure random number generator. - SecureRNG io.Reader -} - -// TransportEndpointInfo holds useful information about a transport endpoint -// which can be queried by monitoring tools. -// -// +stateify savable -type TransportEndpointInfo struct { - // The following fields are initialized at creation time and are - // immutable. - - NetProto tcpip.NetworkProtocolNumber - TransProto tcpip.TransportProtocolNumber - - // The following fields are protected by endpoint mu. - - ID TransportEndpointID - // BindNICID and bindAddr are set via calls to Bind(). They are used to - // reject attempts to send data or connect via a different NIC or - // address - BindNICID tcpip.NICID - BindAddr tcpip.Address - // RegisterNICID is the default NICID registered as a side-effect of - // connect or datagram write. - RegisterNICID tcpip.NICID -} - -// AddrNetProtoLocked unwraps the specified address if it is a V4-mapped V6 -// address and returns the network protocol number to be used to communicate -// with the specified address. It returns an error if the passed address is -// incompatible with the receiver. -// -// Preconditon: the parent endpoint mu must be held while calling this method. -func (t *TransportEndpointInfo) AddrNetProtoLocked(addr tcpip.FullAddress, v6only bool, bind bool) (tcpip.FullAddress, tcpip.NetworkProtocolNumber, tcpip.Error) { - netProto := t.NetProto - switch addr.Addr.BitLen() { - case header.IPv4AddressSizeBits: - netProto = header.IPv4ProtocolNumber - case header.IPv6AddressSizeBits: - if header.IsV4MappedAddress(addr.Addr) { - netProto = header.IPv4ProtocolNumber - addr.Addr = tcpip.AddrFrom4Slice(addr.Addr.AsSlice()[header.IPv6AddressSize-header.IPv4AddressSize:]) - if addr.Addr == header.IPv4Any { - addr.Addr = tcpip.Address{} - } - } - } - - switch t.ID.LocalAddress.BitLen() { - case header.IPv4AddressSizeBits: - if addr.Addr.BitLen() == header.IPv6AddressSizeBits { - return tcpip.FullAddress{}, 0, &tcpip.ErrInvalidEndpointState{} - } - case header.IPv6AddressSizeBits: - if addr.Addr.BitLen() == header.IPv4AddressSizeBits { - return tcpip.FullAddress{}, 0, &tcpip.ErrNetworkUnreachable{} - } - } - - if !bind && addr.Addr.Unspecified() { - // If the destination address isn't set, Linux sets it to the - // source address. If a source address isn't set either, it - // sets both to the loopback address. - if t.ID.LocalAddress.Unspecified() { - switch netProto { - case header.IPv4ProtocolNumber: - addr.Addr = header.IPv4Loopback - case header.IPv6ProtocolNumber: - addr.Addr = header.IPv6Loopback - } - } else { - addr.Addr = t.ID.LocalAddress - } - } - - switch { - case netProto == t.NetProto: - case netProto == header.IPv4ProtocolNumber && t.NetProto == header.IPv6ProtocolNumber: - if v6only { - return tcpip.FullAddress{}, 0, &tcpip.ErrHostUnreachable{} - } - default: - return tcpip.FullAddress{}, 0, &tcpip.ErrInvalidEndpointState{} - } - - return addr, netProto, nil -} - -// IsEndpointInfo is an empty method to implement the tcpip.EndpointInfo -// marker interface. -func (*TransportEndpointInfo) IsEndpointInfo() {} - -// New allocates a new networking stack with only the requested networking and -// transport protocols configured with default options. -// -// Note, NDPConfigurations will be fixed before being used by the Stack. That -// is, if an invalid value was provided, it will be reset to the default value. -// -// Protocol options can be changed by calling the -// SetNetworkProtocolOption/SetTransportProtocolOption methods provided by the -// stack. Please refer to individual protocol implementations as to what options -// are supported. -func New(opts Options) *Stack { - clock := opts.Clock - if clock == nil { - clock = tcpip.NewStdClock() - } - - if opts.SecureRNG == nil { - opts.SecureRNG = cryptorand.Reader - } - secureRNG := cryptorand.RNGFrom(opts.SecureRNG) - - randSrc := opts.RandSource - if randSrc == nil { - var v int64 - if err := binary.Read(opts.SecureRNG, binary.LittleEndian, &v); err != nil { - panic(err) - } - // Source provided by rand.NewSource is not thread-safe so - // we wrap it in a simple thread-safe version. - randSrc = &lockedRandomSource{src: rand.NewSource(v)} - } - insecureRNG := rand.New(randSrc) - - if opts.IPTables == nil { - if opts.DefaultIPTables == nil { - opts.DefaultIPTables = DefaultTables - } - opts.IPTables = opts.DefaultIPTables(clock, insecureRNG) - } - - opts.NUDConfigs.resetInvalidFields() - - s := &Stack{ - transportProtocols: make(map[tcpip.TransportProtocolNumber]*transportProtocolState), - networkProtocols: make(map[tcpip.NetworkProtocolNumber]NetworkProtocol), - nics: make(map[tcpip.NICID]*nic), - packetEndpointWriteSupported: opts.AllowPacketEndpointWrite, - defaultForwardingEnabled: make(map[tcpip.NetworkProtocolNumber]struct{}), - cleanupEndpoints: make(map[TransportEndpoint]struct{}), - PortManager: ports.NewPortManager(), - clock: clock, - stats: opts.Stats.FillIn(), - handleLocal: opts.HandleLocal, - tables: opts.IPTables, - icmpRateLimiter: NewICMPRateLimiter(clock), - seed: secureRNG.Uint32(), - nudConfigs: opts.NUDConfigs, - nudDisp: opts.NUDDisp, - insecureRNG: insecureRNG, - secureRNG: secureRNG, - sendBufferSize: tcpip.SendBufferSizeOption{ - Min: MinBufferSize, - Default: DefaultBufferSize, - Max: DefaultMaxBufferSize, - }, - receiveBufferSize: tcpip.ReceiveBufferSizeOption{ - Min: MinBufferSize, - Default: DefaultBufferSize, - Max: DefaultMaxBufferSize, - }, - tcpInvalidRateLimit: defaultTCPInvalidRateLimit, - tsOffsetSecret: secureRNG.Uint32(), - } - - // Add specified network protocols. - for _, netProtoFactory := range opts.NetworkProtocols { - netProto := netProtoFactory(s) - s.networkProtocols[netProto.Number()] = netProto - } - - // Add specified transport protocols. - for _, transProtoFactory := range opts.TransportProtocols { - transProto := transProtoFactory(s) - s.transportProtocols[transProto.Number()] = &transportProtocolState{ - proto: transProto, - } - } - - // Add the factory for raw endpoints, if present. - s.rawFactory = opts.RawFactory - - // Create the global transport demuxer. - s.demux = newTransportDemuxer(s) - - return s -} - -// NextNICID allocates the next available NIC ID and returns it. -func (s *Stack) NextNICID() tcpip.NICID { - next := s.nicIDGen.Add(1) - if next < 0 { - panic("NICID overflow") - } - return tcpip.NICID(next) -} - -// SetNetworkProtocolOption allows configuring individual protocol level -// options. This method returns an error if the protocol is not supported or -// option is not supported by the protocol implementation or the provided value -// is incorrect. -func (s *Stack) SetNetworkProtocolOption(network tcpip.NetworkProtocolNumber, option tcpip.SettableNetworkProtocolOption) tcpip.Error { - netProto, ok := s.networkProtocols[network] - if !ok { - return &tcpip.ErrUnknownProtocol{} - } - return netProto.SetOption(option) -} - -// NetworkProtocolOption allows retrieving individual protocol level option -// values. This method returns an error if the protocol is not supported or -// option is not supported by the protocol implementation. E.g.: -// -// var v ipv4.MyOption -// err := s.NetworkProtocolOption(tcpip.IPv4ProtocolNumber, &v) -// if err != nil { -// ... -// } -func (s *Stack) NetworkProtocolOption(network tcpip.NetworkProtocolNumber, option tcpip.GettableNetworkProtocolOption) tcpip.Error { - netProto, ok := s.networkProtocols[network] - if !ok { - return &tcpip.ErrUnknownProtocol{} - } - return netProto.Option(option) -} - -// SetTransportProtocolOption allows configuring individual protocol level -// options. This method returns an error if the protocol is not supported or -// option is not supported by the protocol implementation or the provided value -// is incorrect. -func (s *Stack) SetTransportProtocolOption(transport tcpip.TransportProtocolNumber, option tcpip.SettableTransportProtocolOption) tcpip.Error { - transProtoState, ok := s.transportProtocols[transport] - if !ok { - return &tcpip.ErrUnknownProtocol{} - } - return transProtoState.proto.SetOption(option) -} - -// TransportProtocolOption allows retrieving individual protocol level option -// values. This method returns an error if the protocol is not supported or -// option is not supported by the protocol implementation. -// -// var v tcp.SACKEnabled -// if err := s.TransportProtocolOption(tcpip.TCPProtocolNumber, &v); err != nil { -// ... -// } -func (s *Stack) TransportProtocolOption(transport tcpip.TransportProtocolNumber, option tcpip.GettableTransportProtocolOption) tcpip.Error { - transProtoState, ok := s.transportProtocols[transport] - if !ok { - return &tcpip.ErrUnknownProtocol{} - } - return transProtoState.proto.Option(option) -} - -// SendBufSizeProto is a protocol that can return its send buffer size. -type SendBufSizeProto interface { - SendBufferSize() tcpip.TCPSendBufferSizeRangeOption -} - -// TCPSendBufferLimits returns the TCP send buffer size limit. -func (s *Stack) TCPSendBufferLimits() tcpip.TCPSendBufferSizeRangeOption { - return s.transportProtocols[header.TCPProtocolNumber].proto.(SendBufSizeProto).SendBufferSize() -} - -// SetTransportProtocolHandler sets the per-stack default handler for the given -// protocol. -// -// It must be called only during initialization of the stack. Changing it as the -// stack is operating is not supported. -func (s *Stack) SetTransportProtocolHandler(p tcpip.TransportProtocolNumber, h func(TransportEndpointID, *PacketBuffer) bool) { - state := s.transportProtocols[p] - if state != nil { - state.defaultHandler = h - } -} - -// Clock returns the Stack's clock for retrieving the current time and -// scheduling work. -func (s *Stack) Clock() tcpip.Clock { - return s.clock -} - -// Stats returns a mutable copy of the current stats. -// -// This is not generally exported via the public interface, but is available -// internally. -func (s *Stack) Stats() tcpip.Stats { - return s.stats -} - -// SetNICForwarding enables or disables packet forwarding on the specified NIC -// for the passed protocol. -// -// Returns the previous configuration on the NIC. -func (s *Stack) SetNICForwarding(id tcpip.NICID, protocol tcpip.NetworkProtocolNumber, enable bool) (bool, tcpip.Error) { - s.mu.RLock() - defer s.mu.RUnlock() - - nic, ok := s.nics[id] - if !ok { - return false, &tcpip.ErrUnknownNICID{} - } - - return nic.setForwarding(protocol, enable) -} - -// NICForwarding returns the forwarding configuration for the specified NIC. -func (s *Stack) NICForwarding(id tcpip.NICID, protocol tcpip.NetworkProtocolNumber) (bool, tcpip.Error) { - s.mu.RLock() - defer s.mu.RUnlock() - - nic, ok := s.nics[id] - if !ok { - return false, &tcpip.ErrUnknownNICID{} - } - - return nic.forwarding(protocol) -} - -// SetForwardingDefaultAndAllNICs sets packet forwarding for all NICs for the -// passed protocol and sets the default setting for newly created NICs. -func (s *Stack) SetForwardingDefaultAndAllNICs(protocol tcpip.NetworkProtocolNumber, enable bool) tcpip.Error { - s.mu.Lock() - defer s.mu.Unlock() - - doneOnce := false - for id, nic := range s.nics { - if _, err := nic.setForwarding(protocol, enable); err != nil { - // Expect forwarding to be settable on all interfaces if it was set on - // one. - if doneOnce { - panic(fmt.Sprintf("nic(id=%d).setForwarding(%d, %t): %s", id, protocol, enable, err)) - } - - return err - } - - doneOnce = true - } - - if enable { - s.defaultForwardingEnabled[protocol] = struct{}{} - } else { - delete(s.defaultForwardingEnabled, protocol) - } - - return nil -} - -// AddMulticastRoute adds a multicast route to be used for the specified -// addresses and protocol. -func (s *Stack) AddMulticastRoute(protocol tcpip.NetworkProtocolNumber, addresses UnicastSourceAndMulticastDestination, route MulticastRoute) tcpip.Error { - netProto, ok := s.networkProtocols[protocol] - if !ok { - return &tcpip.ErrUnknownProtocol{} - } - - forwardingNetProto, ok := netProto.(MulticastForwardingNetworkProtocol) - if !ok { - return &tcpip.ErrNotSupported{} - } - - return forwardingNetProto.AddMulticastRoute(addresses, route) -} - -// RemoveMulticastRoute removes a multicast route that matches the specified -// addresses and protocol. -func (s *Stack) RemoveMulticastRoute(protocol tcpip.NetworkProtocolNumber, addresses UnicastSourceAndMulticastDestination) tcpip.Error { - netProto, ok := s.networkProtocols[protocol] - if !ok { - return &tcpip.ErrUnknownProtocol{} - } - - forwardingNetProto, ok := netProto.(MulticastForwardingNetworkProtocol) - if !ok { - return &tcpip.ErrNotSupported{} - } - - return forwardingNetProto.RemoveMulticastRoute(addresses) -} - -// MulticastRouteLastUsedTime returns a monotonic timestamp that represents the -// last time that the route that matches the provided addresses and protocol -// was used or updated. -func (s *Stack) MulticastRouteLastUsedTime(protocol tcpip.NetworkProtocolNumber, addresses UnicastSourceAndMulticastDestination) (tcpip.MonotonicTime, tcpip.Error) { - netProto, ok := s.networkProtocols[protocol] - if !ok { - return tcpip.MonotonicTime{}, &tcpip.ErrUnknownProtocol{} - } - - forwardingNetProto, ok := netProto.(MulticastForwardingNetworkProtocol) - if !ok { - return tcpip.MonotonicTime{}, &tcpip.ErrNotSupported{} - } - - return forwardingNetProto.MulticastRouteLastUsedTime(addresses) -} - -// EnableMulticastForwardingForProtocol enables multicast forwarding for the -// provided protocol. -// -// Returns true if forwarding was already enabled on the protocol. -// Additionally, returns an error if: -// -// - The protocol is not found. -// - The protocol doesn't support multicast forwarding. -// - The multicast forwarding event dispatcher is nil. -// -// If successful, future multicast forwarding events will be sent to the -// provided event dispatcher. -func (s *Stack) EnableMulticastForwardingForProtocol(protocol tcpip.NetworkProtocolNumber, disp MulticastForwardingEventDispatcher) (bool, tcpip.Error) { - netProto, ok := s.networkProtocols[protocol] - if !ok { - return false, &tcpip.ErrUnknownProtocol{} - } - - forwardingNetProto, ok := netProto.(MulticastForwardingNetworkProtocol) - if !ok { - return false, &tcpip.ErrNotSupported{} - } - - return forwardingNetProto.EnableMulticastForwarding(disp) -} - -// DisableMulticastForwardingForProtocol disables multicast forwarding for the -// provided protocol. -// -// Returns an error if the provided protocol is not found or if it does not -// support multicast forwarding. -func (s *Stack) DisableMulticastForwardingForProtocol(protocol tcpip.NetworkProtocolNumber) tcpip.Error { - netProto, ok := s.networkProtocols[protocol] - if !ok { - return &tcpip.ErrUnknownProtocol{} - } - - forwardingNetProto, ok := netProto.(MulticastForwardingNetworkProtocol) - if !ok { - return &tcpip.ErrNotSupported{} - } - - forwardingNetProto.DisableMulticastForwarding() - return nil -} - -// SetNICMulticastForwarding enables or disables multicast packet forwarding on -// the specified NIC for the passed protocol. -// -// Returns the previous configuration on the NIC. -func (s *Stack) SetNICMulticastForwarding(id tcpip.NICID, protocol tcpip.NetworkProtocolNumber, enable bool) (bool, tcpip.Error) { - s.mu.RLock() - defer s.mu.RUnlock() - - nic, ok := s.nics[id] - if !ok { - return false, &tcpip.ErrUnknownNICID{} - } - - return nic.setMulticastForwarding(protocol, enable) -} - -// NICMulticastForwarding returns the multicast forwarding configuration for -// the specified NIC. -func (s *Stack) NICMulticastForwarding(id tcpip.NICID, protocol tcpip.NetworkProtocolNumber) (bool, tcpip.Error) { - s.mu.RLock() - defer s.mu.RUnlock() - - nic, ok := s.nics[id] - if !ok { - return false, &tcpip.ErrUnknownNICID{} - } - - return nic.multicastForwarding(protocol) -} - -// PortRange returns the UDP and TCP inclusive range of ephemeral ports used in -// both IPv4 and IPv6. -func (s *Stack) PortRange() (uint16, uint16) { - return s.PortManager.PortRange() -} - -// SetPortRange sets the UDP and TCP IPv4 and IPv6 ephemeral port range -// (inclusive). -func (s *Stack) SetPortRange(start uint16, end uint16) tcpip.Error { - return s.PortManager.SetPortRange(start, end) -} - -// SetRouteTable assigns the route table to be used by this stack. It -// specifies which NIC to use for given destination address ranges. -// -// This method takes ownership of the table. -func (s *Stack) SetRouteTable(table []tcpip.Route) { - s.routeMu.Lock() - defer s.routeMu.Unlock() - s.routeTable.Reset() - for _, r := range table { - s.addRouteLocked(&r) - } -} - -// GetRouteTable returns the route table which is currently in use. -func (s *Stack) GetRouteTable() []tcpip.Route { - s.routeMu.RLock() - defer s.routeMu.RUnlock() - table := make([]tcpip.Route, 0) - for r := s.routeTable.Front(); r != nil; r = r.Next() { - table = append(table, *r) - } - return table -} - -// AddRoute appends a route to the route table. -func (s *Stack) AddRoute(route tcpip.Route) { - s.routeMu.Lock() - defer s.routeMu.Unlock() - s.addRouteLocked(&route) -} - -// +checklocks:s.routeMu -func (s *Stack) addRouteLocked(route *tcpip.Route) { - routePrefix := route.Destination.Prefix() - n := s.routeTable.Front() - for ; n != nil; n = n.Next() { - if n.Destination.Prefix() < routePrefix { - s.routeTable.InsertBefore(n, route) - return - } - } - s.routeTable.PushBack(route) -} - -// RemoveRoutes removes matching routes from the route table. -func (s *Stack) RemoveRoutes(match func(tcpip.Route) bool) { - s.routeMu.Lock() - defer s.routeMu.Unlock() - - s.removeRoutesLocked(match) -} - -// +checklocks:s.routeMu -func (s *Stack) removeRoutesLocked(match func(tcpip.Route) bool) { - for route := s.routeTable.Front(); route != nil; { - next := route.Next() - if match(*route) { - s.routeTable.Remove(route) - } - route = next - } -} - -// ReplaceRoute replaces the route in the routing table which matchse -// the lookup key for the routing table. If there is no match, the given -// route will still be added to the routing table. -// The lookup key consists of destination, ToS, scope and output interface. -func (s *Stack) ReplaceRoute(route tcpip.Route) { - s.routeMu.Lock() - defer s.routeMu.Unlock() - - s.removeRoutesLocked(func(rt tcpip.Route) bool { - return rt.Equal(route) - }) - s.addRouteLocked(&route) -} - -// NewEndpoint creates a new transport layer endpoint of the given protocol. -func (s *Stack) NewEndpoint(transport tcpip.TransportProtocolNumber, network tcpip.NetworkProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - t, ok := s.transportProtocols[transport] - if !ok { - return nil, &tcpip.ErrUnknownProtocol{} - } - - return t.proto.NewEndpoint(network, waiterQueue) -} - -// NewRawEndpoint creates a new raw transport layer endpoint of the given -// protocol. Raw endpoints receive all traffic for a given protocol regardless -// of address. -func (s *Stack) NewRawEndpoint(transport tcpip.TransportProtocolNumber, network tcpip.NetworkProtocolNumber, waiterQueue *waiter.Queue, associated bool) (tcpip.Endpoint, tcpip.Error) { - if s.rawFactory == nil { - netRawMissingLogger.Infof("A process tried to create a raw socket, but --net-raw was not specified. Should runsc be run with --net-raw?") - return nil, &tcpip.ErrNotPermitted{} - } - - if !associated { - return s.rawFactory.NewUnassociatedEndpoint(s, network, transport, waiterQueue) - } - - t, ok := s.transportProtocols[transport] - if !ok { - return nil, &tcpip.ErrUnknownProtocol{} - } - - return t.proto.NewRawEndpoint(network, waiterQueue) -} - -// NewPacketEndpoint creates a new packet endpoint listening for the given -// netProto. -func (s *Stack) NewPacketEndpoint(cooked bool, netProto tcpip.NetworkProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - if s.rawFactory == nil { - return nil, &tcpip.ErrNotPermitted{} - } - - return s.rawFactory.NewPacketEndpoint(s, cooked, netProto, waiterQueue) -} - -// NICContext is an opaque pointer used to store client-supplied NIC metadata. -type NICContext any - -// NICOptions specifies the configuration of a NIC as it is being created. -// The zero value creates an enabled, unnamed NIC. -type NICOptions struct { - // Name specifies the name of the NIC. - Name string - - // Disabled specifies whether to avoid calling Attach on the passed - // LinkEndpoint. - Disabled bool - - // Context specifies user-defined data that will be returned in stack.NICInfo - // for the NIC. Clients of this library can use it to add metadata that - // should be tracked alongside a NIC, to avoid having to keep a - // map[tcpip.NICID]metadata mirroring stack.Stack's nic map. - Context NICContext - - // QDisc is the queue discipline to use for this NIC. - QDisc QueueingDiscipline - - // DeliverLinkPackets specifies whether the NIC is responsible for - // delivering raw packets to packet sockets. - DeliverLinkPackets bool -} - -// GetNICByID return a network device associated with the specified ID. -func (s *Stack) GetNICByID(id tcpip.NICID) (*nic, tcpip.Error) { - s.mu.Lock() - defer s.mu.Unlock() - - n, ok := s.nics[id] - if !ok { - return nil, &tcpip.ErrNoSuchFile{} - } - return n, nil -} - -// CreateNICWithOptions creates a NIC with the provided id, LinkEndpoint, and -// NICOptions. See the documentation on type NICOptions for details on how -// NICs can be configured. -// -// LinkEndpoint.Attach will be called to bind ep with a NetworkDispatcher. -func (s *Stack) CreateNICWithOptions(id tcpip.NICID, ep LinkEndpoint, opts NICOptions) tcpip.Error { - s.mu.Lock() - defer s.mu.Unlock() - - if id == 0 { - return &tcpip.ErrInvalidNICID{} - } - // Make sure id is unique. - if _, ok := s.nics[id]; ok { - return &tcpip.ErrDuplicateNICID{} - } - - // Make sure name is unique, unless unnamed. - if opts.Name != "" { - for _, n := range s.nics { - if n.Name() == opts.Name { - return &tcpip.ErrDuplicateNICID{} - } - } - } - - n := newNIC(s, id, ep, opts) - for proto := range s.defaultForwardingEnabled { - if _, err := n.setForwarding(proto, true); err != nil { - panic(fmt.Sprintf("newNIC(%d, ...).setForwarding(%d, true): %s", id, proto, err)) - } - } - s.nics[id] = n - ep.SetOnCloseAction(func() { - s.RemoveNIC(id) - }) - if !opts.Disabled { - return n.enable() - } - - return nil -} - -// CreateNIC creates a NIC with the provided id and LinkEndpoint and calls -// LinkEndpoint.Attach to bind ep with a NetworkDispatcher. -func (s *Stack) CreateNIC(id tcpip.NICID, ep LinkEndpoint) tcpip.Error { - return s.CreateNICWithOptions(id, ep, NICOptions{}) -} - -// GetLinkEndpointByName gets the link endpoint specified by name. -func (s *Stack) GetLinkEndpointByName(name string) LinkEndpoint { - s.mu.RLock() - defer s.mu.RUnlock() - for _, nic := range s.nics { - if nic.Name() == name { - linkEP, ok := nic.NetworkLinkEndpoint.(LinkEndpoint) - if !ok { - panic(fmt.Sprintf("unexpected NetworkLinkEndpoint(%#v) is not a LinkEndpoint", nic.NetworkLinkEndpoint)) - } - return linkEP - } - } - return nil -} - -// EnableNIC enables the given NIC so that the link-layer endpoint can start -// delivering packets to it. -func (s *Stack) EnableNIC(id tcpip.NICID) tcpip.Error { - s.mu.RLock() - defer s.mu.RUnlock() - - nic, ok := s.nics[id] - if !ok { - return &tcpip.ErrUnknownNICID{} - } - - return nic.enable() -} - -// DisableNIC disables the given NIC. -func (s *Stack) DisableNIC(id tcpip.NICID) tcpip.Error { - s.mu.RLock() - defer s.mu.RUnlock() - - nic, ok := s.nics[id] - if !ok { - return &tcpip.ErrUnknownNICID{} - } - - nic.disable() - return nil -} - -// CheckNIC checks if a NIC is usable. -func (s *Stack) CheckNIC(id tcpip.NICID) bool { - s.mu.RLock() - defer s.mu.RUnlock() - - nic, ok := s.nics[id] - if !ok { - return false - } - - return nic.Enabled() -} - -// RemoveNIC removes NIC and all related routes from the network stack. -func (s *Stack) RemoveNIC(id tcpip.NICID) tcpip.Error { - s.mu.Lock() - deferAct, err := s.removeNICLocked(id) - s.mu.Unlock() - if deferAct != nil { - deferAct() - } - return err -} - -// removeNICLocked removes NIC and all related routes from the network stack. -// -// +checklocks:s.mu -func (s *Stack) removeNICLocked(id tcpip.NICID) (func(), tcpip.Error) { - nic, ok := s.nics[id] - if !ok { - return nil, &tcpip.ErrUnknownNICID{} - } - delete(s.nics, id) - - if nic.Primary != nil { - b := nic.Primary.NetworkLinkEndpoint.(CoordinatorNIC) - if err := b.DelNIC(nic); err != nil { - return nil, err - } - } - - // Remove routes in-place. n tracks the number of routes written. - s.routeMu.Lock() - for r := s.routeTable.Front(); r != nil; { - next := r.Next() - if r.NIC == id { - s.routeTable.Remove(r) - } - r = next - } - s.routeMu.Unlock() - - return nic.remove(true /* closeLinkEndpoint */) -} - -// SetNICCoordinator sets a coordinator device. -func (s *Stack) SetNICCoordinator(id tcpip.NICID, mid tcpip.NICID) tcpip.Error { - s.mu.Lock() - defer s.mu.Unlock() - - nic, ok := s.nics[id] - if !ok { - return &tcpip.ErrUnknownNICID{} - } - - m, ok := s.nics[mid] - if !ok { - return &tcpip.ErrUnknownNICID{} - } - b, ok := m.NetworkLinkEndpoint.(CoordinatorNIC) - if !ok { - return &tcpip.ErrNotSupported{} - } - if err := b.AddNIC(nic); err != nil { - return err - } - nic.Primary = m - return nil -} - -// SetNICAddress sets the hardware address which is identified by the nic ID. -func (s *Stack) SetNICAddress(id tcpip.NICID, addr tcpip.LinkAddress) tcpip.Error { - s.mu.Lock() - defer s.mu.Unlock() - - nic, ok := s.nics[id] - if !ok { - return &tcpip.ErrUnknownNICID{} - } - nic.NetworkLinkEndpoint.SetLinkAddress(addr) - return nil -} - -// SetNICName sets a NIC's name. -func (s *Stack) SetNICName(id tcpip.NICID, name string) tcpip.Error { - s.mu.Lock() - defer s.mu.Unlock() - - nic, ok := s.nics[id] - if !ok { - return &tcpip.ErrUnknownNICID{} - } - nic.name = name - return nil -} - -// SetNICMTU sets a NIC's MTU. -func (s *Stack) SetNICMTU(id tcpip.NICID, mtu uint32) tcpip.Error { - s.mu.Lock() - defer s.mu.Unlock() - - nic, ok := s.nics[id] - if !ok { - return &tcpip.ErrUnknownNICID{} - } - nic.NetworkLinkEndpoint.SetMTU(mtu) - return nil -} - -// NICInfo captures the name and addresses assigned to a NIC. -type NICInfo struct { - Name string - LinkAddress tcpip.LinkAddress - ProtocolAddresses []tcpip.ProtocolAddress - - // Flags indicate the state of the NIC. - Flags NICStateFlags - - // MTU is the maximum transmission unit. - MTU uint32 - - Stats tcpip.NICStats - - // NetworkStats holds the stats of each NetworkEndpoint bound to the NIC. - NetworkStats map[tcpip.NetworkProtocolNumber]NetworkEndpointStats - - // Context is user-supplied data optionally supplied in CreateNICWithOptions. - // See type NICOptions for more details. - Context NICContext - - // ARPHardwareType holds the ARP Hardware type of the NIC. This is the - // value sent in haType field of an ARP Request sent by this NIC and the - // value expected in the haType field of an ARP response. - ARPHardwareType header.ARPHardwareType - - // Forwarding holds the forwarding status for each network endpoint that - // supports forwarding. - Forwarding map[tcpip.NetworkProtocolNumber]bool - - // MulticastForwarding holds the forwarding status for each network endpoint - // that supports multicast forwarding. - MulticastForwarding map[tcpip.NetworkProtocolNumber]bool -} - -// HasNIC returns true if the NICID is defined in the stack. -func (s *Stack) HasNIC(id tcpip.NICID) bool { - s.mu.RLock() - _, ok := s.nics[id] - s.mu.RUnlock() - return ok -} - -// NICInfo returns a map of NICIDs to their associated information. -func (s *Stack) NICInfo() map[tcpip.NICID]NICInfo { - s.mu.RLock() - defer s.mu.RUnlock() - - type forwardingFn func(tcpip.NetworkProtocolNumber) (bool, tcpip.Error) - forwardingValue := func(forwardingFn forwardingFn, proto tcpip.NetworkProtocolNumber, nicID tcpip.NICID, fnName string) (forward bool, ok bool) { - switch forwarding, err := forwardingFn(proto); err.(type) { - case nil: - return forwarding, true - case *tcpip.ErrUnknownProtocol: - panic(fmt.Sprintf("expected network protocol %d to be available on NIC %d", proto, nicID)) - case *tcpip.ErrNotSupported: - // Not all network protocols support forwarding. - default: - panic(fmt.Sprintf("nic(id=%d).%s(%d): %s", nicID, fnName, proto, err)) - } - return false, false - } - - nics := make(map[tcpip.NICID]NICInfo) - for id, nic := range s.nics { - flags := NICStateFlags{ - Up: true, // Netstack interfaces are always up. - Running: nic.Enabled(), - Promiscuous: nic.Promiscuous(), - Loopback: nic.IsLoopback(), - } - - netStats := make(map[tcpip.NetworkProtocolNumber]NetworkEndpointStats) - for proto, netEP := range nic.networkEndpoints { - netStats[proto] = netEP.Stats() - } - - info := NICInfo{ - Name: nic.name, - LinkAddress: nic.NetworkLinkEndpoint.LinkAddress(), - ProtocolAddresses: nic.primaryAddresses(), - Flags: flags, - MTU: nic.NetworkLinkEndpoint.MTU(), - Stats: nic.stats.local, - NetworkStats: netStats, - Context: nic.context, - ARPHardwareType: nic.NetworkLinkEndpoint.ARPHardwareType(), - Forwarding: make(map[tcpip.NetworkProtocolNumber]bool), - MulticastForwarding: make(map[tcpip.NetworkProtocolNumber]bool), - } - - for proto := range s.networkProtocols { - if forwarding, ok := forwardingValue(nic.forwarding, proto, id, "forwarding"); ok { - info.Forwarding[proto] = forwarding - } - - if multicastForwarding, ok := forwardingValue(nic.multicastForwarding, proto, id, "multicastForwarding"); ok { - info.MulticastForwarding[proto] = multicastForwarding - } - } - - nics[id] = info - } - return nics -} - -// NICStateFlags holds information about the state of an NIC. -type NICStateFlags struct { - // Up indicates whether the interface is running. - Up bool - - // Running indicates whether resources are allocated. - Running bool - - // Promiscuous indicates whether the interface is in promiscuous mode. - Promiscuous bool - - // Loopback indicates whether the interface is a loopback. - Loopback bool -} - -// AddProtocolAddress adds an address to the specified NIC, possibly with extra -// properties. -func (s *Stack) AddProtocolAddress(id tcpip.NICID, protocolAddress tcpip.ProtocolAddress, properties AddressProperties) tcpip.Error { - s.mu.RLock() - defer s.mu.RUnlock() - - nic, ok := s.nics[id] - if !ok { - return &tcpip.ErrUnknownNICID{} - } - - return nic.addAddress(protocolAddress, properties) -} - -// RemoveAddress removes an existing network-layer address from the specified -// NIC. -func (s *Stack) RemoveAddress(id tcpip.NICID, addr tcpip.Address) tcpip.Error { - s.mu.RLock() - defer s.mu.RUnlock() - - if nic, ok := s.nics[id]; ok { - return nic.removeAddress(addr) - } - - return &tcpip.ErrUnknownNICID{} -} - -// SetAddressLifetimes sets informational preferred and valid lifetimes, and -// whether the address should be preferred or deprecated. -func (s *Stack) SetAddressLifetimes(id tcpip.NICID, addr tcpip.Address, lifetimes AddressLifetimes) tcpip.Error { - s.mu.RLock() - defer s.mu.RUnlock() - - if nic, ok := s.nics[id]; ok { - return nic.setAddressLifetimes(addr, lifetimes) - } - - return &tcpip.ErrUnknownNICID{} -} - -// AllAddresses returns a map of NICIDs to their protocol addresses (primary -// and non-primary). -func (s *Stack) AllAddresses() map[tcpip.NICID][]tcpip.ProtocolAddress { - s.mu.RLock() - defer s.mu.RUnlock() - - nics := make(map[tcpip.NICID][]tcpip.ProtocolAddress) - for id, nic := range s.nics { - nics[id] = nic.allPermanentAddresses() - } - return nics -} - -// GetMainNICAddress returns the first non-deprecated primary address and prefix -// for the given NIC and protocol. If no non-deprecated primary addresses exist, -// a deprecated address will be returned. If no deprecated addresses exist, the -// zero value will be returned. -func (s *Stack) GetMainNICAddress(id tcpip.NICID, protocol tcpip.NetworkProtocolNumber) (tcpip.AddressWithPrefix, tcpip.Error) { - s.mu.RLock() - defer s.mu.RUnlock() - - nic, ok := s.nics[id] - if !ok { - return tcpip.AddressWithPrefix{}, &tcpip.ErrUnknownNICID{} - } - - return nic.PrimaryAddress(protocol) -} - -func (s *Stack) getAddressEP(nic *nic, localAddr, remoteAddr, srcHint tcpip.Address, netProto tcpip.NetworkProtocolNumber) AssignableAddressEndpoint { - if localAddr.BitLen() == 0 { - return nic.primaryEndpoint(netProto, remoteAddr, srcHint) - } - return nic.findEndpoint(netProto, localAddr, CanBePrimaryEndpoint) -} - -// NewRouteForMulticast returns a Route that may be used to forward multicast -// packets. -// -// Returns nil if validation fails. -func (s *Stack) NewRouteForMulticast(nicID tcpip.NICID, remoteAddr tcpip.Address, netProto tcpip.NetworkProtocolNumber) *Route { - s.mu.RLock() - defer s.mu.RUnlock() - - nic, ok := s.nics[nicID] - if !ok || !nic.Enabled() { - return nil - } - - if addressEndpoint := s.getAddressEP(nic, tcpip.Address{} /* localAddr */, remoteAddr, tcpip.Address{} /* srcHint */, netProto); addressEndpoint != nil { - return constructAndValidateRoute(netProto, addressEndpoint, nic, nic, tcpip.Address{} /* gateway */, tcpip.Address{} /* localAddr */, remoteAddr, s.handleLocal, false /* multicastLoop */, 0 /* mtu */) - } - return nil -} - -// findLocalRouteFromNICRLocked is like findLocalRouteRLocked but finds a route -// from the specified NIC. -// -// +checklocksread:s.mu -func (s *Stack) findLocalRouteFromNICRLocked(localAddressNIC *nic, localAddr, remoteAddr tcpip.Address, netProto tcpip.NetworkProtocolNumber) *Route { - localAddressEndpoint := localAddressNIC.getAddressOrCreateTempInner(netProto, localAddr, false /* createTemp */, NeverPrimaryEndpoint) - if localAddressEndpoint == nil { - return nil - } - - var outgoingNIC *nic - // Prefer a local route to the same interface as the local address. - if localAddressNIC.hasAddress(netProto, remoteAddr) { - outgoingNIC = localAddressNIC - } - - // If the remote address isn't owned by the local address's NIC, check all - // NICs. - if outgoingNIC == nil { - for _, nic := range s.nics { - if nic.hasAddress(netProto, remoteAddr) { - outgoingNIC = nic - break - } - } - } - - // If the remote address is not owned by the stack, we can't return a local - // route. - if outgoingNIC == nil { - localAddressEndpoint.DecRef() - return nil - } - - r := makeLocalRoute( - netProto, - localAddr, - remoteAddr, - outgoingNIC, - localAddressNIC, - localAddressEndpoint, - ) - - if r.IsOutboundBroadcast() { - r.Release() - return nil - } - - return r -} - -// findLocalRouteRLocked returns a local route. -// -// A local route is a route to some remote address which the stack owns. That -// is, a local route is a route where packets never have to leave the stack. -// -// +checklocksread:s.mu -func (s *Stack) findLocalRouteRLocked(localAddressNICID tcpip.NICID, localAddr, remoteAddr tcpip.Address, netProto tcpip.NetworkProtocolNumber) *Route { - if localAddr.BitLen() == 0 { - localAddr = remoteAddr - } - - if localAddressNICID == 0 { - for _, localAddressNIC := range s.nics { - if r := s.findLocalRouteFromNICRLocked(localAddressNIC, localAddr, remoteAddr, netProto); r != nil { - return r - } - } - - return nil - } - - if localAddressNIC, ok := s.nics[localAddressNICID]; ok { - return s.findLocalRouteFromNICRLocked(localAddressNIC, localAddr, remoteAddr, netProto) - } - - return nil -} - -// HandleLocal returns true if non-loopback interfaces are allowed to loop packets. -func (s *Stack) HandleLocal() bool { - return s.handleLocal -} - -func isNICForwarding(nic *nic, proto tcpip.NetworkProtocolNumber) bool { - switch forwarding, err := nic.forwarding(proto); err.(type) { - case nil: - return forwarding - case *tcpip.ErrUnknownProtocol: - panic(fmt.Sprintf("expected network protocol %d to be available on NIC %d", proto, nic.ID())) - case *tcpip.ErrNotSupported: - // Not all network protocols support forwarding. - return false - default: - panic(fmt.Sprintf("nic(id=%d).forwarding(%d): %s", nic.ID(), proto, err)) - } -} - -// findRouteWithLocalAddrFromAnyInterfaceRLocked returns a route to the given -// destination address, leaving through the given NIC. -// -// Rather than preferring to find a route that uses a local address assigned to -// the outgoing interface, it finds any NIC that holds a matching local address -// endpoint. -// -// +checklocksread:s.mu -func (s *Stack) findRouteWithLocalAddrFromAnyInterfaceRLocked(outgoingNIC *nic, localAddr, remoteAddr, srcHint, gateway tcpip.Address, netProto tcpip.NetworkProtocolNumber, multicastLoop bool, mtu uint32) *Route { - for _, aNIC := range s.nics { - addressEndpoint := s.getAddressEP(aNIC, localAddr, remoteAddr, srcHint, netProto) - if addressEndpoint == nil { - continue - } - - if r := constructAndValidateRoute(netProto, addressEndpoint, aNIC /* localAddressNIC */, outgoingNIC, gateway, localAddr, remoteAddr, s.handleLocal, multicastLoop, mtu); r != nil { - return r - } - } - return nil -} - -// FindRoute creates a route to the given destination address, leaving through -// the given NIC and local address (if provided). -// -// If a NIC is not specified, the returned route will leave through the same -// NIC as the NIC that has the local address assigned when forwarding is -// disabled. If forwarding is enabled and the NIC is unspecified, the route may -// leave through any interface unless the route is link-local. -// -// If no local address is provided, the stack will select a local address. If no -// remote address is provided, the stack will use a remote address equal to the -// local address. -func (s *Stack) FindRoute(id tcpip.NICID, localAddr, remoteAddr tcpip.Address, netProto tcpip.NetworkProtocolNumber, multicastLoop bool) (*Route, tcpip.Error) { - s.mu.RLock() - defer s.mu.RUnlock() - - // Reject attempts to use unsupported protocols. - if !s.CheckNetworkProtocol(netProto) { - return nil, &tcpip.ErrUnknownProtocol{} - } - - isLinkLocal := header.IsV6LinkLocalUnicastAddress(remoteAddr) || header.IsV6LinkLocalMulticastAddress(remoteAddr) - isLocalBroadcast := remoteAddr == header.IPv4Broadcast - isMulticast := header.IsV4MulticastAddress(remoteAddr) || header.IsV6MulticastAddress(remoteAddr) - isLoopback := header.IsV4LoopbackAddress(remoteAddr) || header.IsV6LoopbackAddress(remoteAddr) - needRoute := !(isLocalBroadcast || isMulticast || isLinkLocal || isLoopback) - - if s.handleLocal && !isMulticast && !isLocalBroadcast { - if r := s.findLocalRouteRLocked(id, localAddr, remoteAddr, netProto); r != nil { - return r, nil - } - } - - // If the interface is specified and we do not need a route, return a route - // through the interface if the interface is valid and enabled. - if id != 0 && !needRoute { - if nic, ok := s.nics[id]; ok && nic.Enabled() { - if addressEndpoint := s.getAddressEP(nic, localAddr, remoteAddr, tcpip.Address{} /* srcHint */, netProto); addressEndpoint != nil { - return makeRoute( - netProto, - tcpip.Address{}, /* gateway */ - localAddr, - remoteAddr, - nic, /* outgoingNIC */ - nic, /* localAddressNIC*/ - addressEndpoint, - s.handleLocal, - multicastLoop, - 0, /* mtu */ - ), nil - } - } - - if isLoopback { - return nil, &tcpip.ErrBadLocalAddress{} - } - return nil, &tcpip.ErrNetworkUnreachable{} - } - - onlyGlobalAddresses := !header.IsV6LinkLocalUnicastAddress(localAddr) && !isLinkLocal - - // Find a route to the remote with the route table. - var chosenRoute tcpip.Route - if r := func() *Route { - s.routeMu.RLock() - defer s.routeMu.RUnlock() - - for route := s.routeTable.Front(); route != nil; route = route.Next() { - if remoteAddr.BitLen() != 0 && !route.Destination.Contains(remoteAddr) { - continue - } - - nic, ok := s.nics[route.NIC] - if !ok || !nic.Enabled() { - continue - } - - if id == 0 || id == route.NIC { - if addressEndpoint := s.getAddressEP(nic, localAddr, remoteAddr, route.SourceHint, netProto); addressEndpoint != nil { - var gateway tcpip.Address - if needRoute { - gateway = route.Gateway - } - r := constructAndValidateRoute(netProto, addressEndpoint, nic /* outgoingNIC */, nic /* outgoingNIC */, gateway, localAddr, remoteAddr, s.handleLocal, multicastLoop, route.MTU) - if r == nil { - panic(fmt.Sprintf("non-forwarding route validation failed with route table entry = %#v, id = %d, localAddr = %s, remoteAddr = %s", route, id, localAddr, remoteAddr)) - } - return r - } - } - - // If the stack has forwarding enabled, we haven't found a valid route to - // the remote address yet, and we are routing locally generated traffic, - // keep track of the first valid route. We keep iterating because we - // prefer routes that let us use a local address that is assigned to the - // outgoing interface. There is no requirement to do this from any RFC - // but simply a choice made to better follow a strong host model which - // the netstack follows at the time of writing. - // - // Note that for incoming traffic that we are forwarding (for which the - // NIC and local address are unspecified), we do not keep iterating, as - // there is no reason to prefer routes that let us use a local address - // when routing forwarded (as opposed to locally-generated) traffic. - locallyGenerated := (id != 0 || localAddr != tcpip.Address{}) - if onlyGlobalAddresses && chosenRoute.Equal(tcpip.Route{}) && isNICForwarding(nic, netProto) { - if locallyGenerated { - chosenRoute = *route - continue - } - - if r := s.findRouteWithLocalAddrFromAnyInterfaceRLocked(nic, localAddr, remoteAddr, route.SourceHint, route.Gateway, netProto, multicastLoop, route.MTU); r != nil { - return r - } - } - } - - return nil - }(); r != nil { - return r, nil - } - - if !chosenRoute.Equal(tcpip.Route{}) { - // At this point we know the stack has forwarding enabled since chosenRoute is - // only set when forwarding is enabled. - nic, ok := s.nics[chosenRoute.NIC] - if !ok { - // If the route's NIC was invalid, we should not have chosen the route. - panic(fmt.Sprintf("chosen route must have a valid NIC with ID = %d", chosenRoute.NIC)) - } - - var gateway tcpip.Address - if needRoute { - gateway = chosenRoute.Gateway - } - - // Use the specified NIC to get the local address endpoint. - if id != 0 { - if aNIC, ok := s.nics[id]; ok { - if addressEndpoint := s.getAddressEP(aNIC, localAddr, remoteAddr, chosenRoute.SourceHint, netProto); addressEndpoint != nil { - if r := constructAndValidateRoute(netProto, addressEndpoint, aNIC /* localAddressNIC */, nic /* outgoingNIC */, gateway, localAddr, remoteAddr, s.handleLocal, multicastLoop, chosenRoute.MTU); r != nil { - return r, nil - } - } - } - - // TODO(https://gvisor.dev/issues/8105): This should be ErrNetworkUnreachable. - return nil, &tcpip.ErrHostUnreachable{} - } - - if id == 0 { - // If an interface is not specified, try to find a NIC that holds the local - // address endpoint to construct a route. - if r := s.findRouteWithLocalAddrFromAnyInterfaceRLocked(nic, localAddr, remoteAddr, chosenRoute.SourceHint, gateway, netProto, multicastLoop, chosenRoute.MTU); r != nil { - return r, nil - } - } - } - - if needRoute { - // TODO(https://gvisor.dev/issues/8105): This should be ErrNetworkUnreachable. - return nil, &tcpip.ErrHostUnreachable{} - } - if header.IsV6LoopbackAddress(remoteAddr) { - return nil, &tcpip.ErrBadLocalAddress{} - } - // TODO(https://gvisor.dev/issues/8105): This should be ErrNetworkUnreachable. - return nil, &tcpip.ErrNetworkUnreachable{} -} - -// CheckNetworkProtocol checks if a given network protocol is enabled in the -// stack. -func (s *Stack) CheckNetworkProtocol(protocol tcpip.NetworkProtocolNumber) bool { - _, ok := s.networkProtocols[protocol] - return ok -} - -// CheckDuplicateAddress performs duplicate address detection for the address on -// the specified interface. -func (s *Stack) CheckDuplicateAddress(nicID tcpip.NICID, protocol tcpip.NetworkProtocolNumber, addr tcpip.Address, h DADCompletionHandler) (DADCheckAddressDisposition, tcpip.Error) { - s.mu.RLock() - nic, ok := s.nics[nicID] - s.mu.RUnlock() - - if !ok { - return 0, &tcpip.ErrUnknownNICID{} - } - - return nic.checkDuplicateAddress(protocol, addr, h) -} - -// CheckLocalAddress determines if the given local address exists, and if it -// does, returns the id of the NIC it's bound to. Returns 0 if the address -// does not exist. -func (s *Stack) CheckLocalAddress(nicID tcpip.NICID, protocol tcpip.NetworkProtocolNumber, addr tcpip.Address) tcpip.NICID { - s.mu.RLock() - defer s.mu.RUnlock() - - // If a NIC is specified, use its NIC id. - if nicID != 0 { - nic, ok := s.nics[nicID] - if !ok { - return 0 - } - // In IPv4, linux only checks the interface. If it matches, then it does - // not bother with the address. - // https://github.com/torvalds/linux/blob/15205c2829ca2cbb5ece5ceaafe1171a8470e62b/net/ipv4/igmp.c#L1829-L1837 - if protocol == header.IPv4ProtocolNumber { - return nic.id - } - if nic.CheckLocalAddress(protocol, addr) { - return nic.id - } - return 0 - } - - // Go through all the NICs. - for _, nic := range s.nics { - if nic.CheckLocalAddress(protocol, addr) { - return nic.id - } - } - - return 0 -} - -// SetPromiscuousMode enables or disables promiscuous mode in the given NIC. -func (s *Stack) SetPromiscuousMode(nicID tcpip.NICID, enable bool) tcpip.Error { - s.mu.RLock() - defer s.mu.RUnlock() - - nic, ok := s.nics[nicID] - if !ok { - return &tcpip.ErrUnknownNICID{} - } - - nic.setPromiscuousMode(enable) - - return nil -} - -// SetSpoofing enables or disables address spoofing in the given NIC, allowing -// endpoints to bind to any address in the NIC. -func (s *Stack) SetSpoofing(nicID tcpip.NICID, enable bool) tcpip.Error { - s.mu.RLock() - defer s.mu.RUnlock() - - nic, ok := s.nics[nicID] - if !ok { - return &tcpip.ErrUnknownNICID{} - } - - nic.setSpoofing(enable) - - return nil -} - -// LinkResolutionResult is the result of a link address resolution attempt. -type LinkResolutionResult struct { - LinkAddress tcpip.LinkAddress - Err tcpip.Error -} - -// GetLinkAddress finds the link address corresponding to a network address. -// -// Returns ErrNotSupported if the stack is not configured with a link address -// resolver for the specified network protocol. -// -// Returns ErrWouldBlock if the link address is not readily available, along -// with a notification channel for the caller to block on. Triggers address -// resolution asynchronously. -// -// onResolve will be called either immediately, if resolution is not required, -// or when address resolution is complete, with the resolved link address and -// whether resolution succeeded. -// -// If specified, the local address must be an address local to the interface -// the neighbor cache belongs to. The local address is the source address of -// a packet prompting NUD/link address resolution. -func (s *Stack) GetLinkAddress(nicID tcpip.NICID, addr, localAddr tcpip.Address, protocol tcpip.NetworkProtocolNumber, onResolve func(LinkResolutionResult)) tcpip.Error { - s.mu.RLock() - nic, ok := s.nics[nicID] - s.mu.RUnlock() - if !ok { - return &tcpip.ErrUnknownNICID{} - } - - return nic.getLinkAddress(addr, localAddr, protocol, onResolve) -} - -// Neighbors returns all IP to MAC address associations. -func (s *Stack) Neighbors(nicID tcpip.NICID, protocol tcpip.NetworkProtocolNumber) ([]NeighborEntry, tcpip.Error) { - s.mu.RLock() - nic, ok := s.nics[nicID] - s.mu.RUnlock() - - if !ok { - return nil, &tcpip.ErrUnknownNICID{} - } - - return nic.neighbors(protocol) -} - -// AddStaticNeighbor statically associates an IP address to a MAC address. -func (s *Stack) AddStaticNeighbor(nicID tcpip.NICID, protocol tcpip.NetworkProtocolNumber, addr tcpip.Address, linkAddr tcpip.LinkAddress) tcpip.Error { - s.mu.RLock() - nic, ok := s.nics[nicID] - s.mu.RUnlock() - - if !ok { - return &tcpip.ErrUnknownNICID{} - } - - return nic.addStaticNeighbor(addr, protocol, linkAddr) -} - -// RemoveNeighbor removes an IP to MAC address association previously created -// either automatically or by AddStaticNeighbor. Returns ErrBadAddress if there -// is no association with the provided address. -func (s *Stack) RemoveNeighbor(nicID tcpip.NICID, protocol tcpip.NetworkProtocolNumber, addr tcpip.Address) tcpip.Error { - s.mu.RLock() - nic, ok := s.nics[nicID] - s.mu.RUnlock() - - if !ok { - return &tcpip.ErrUnknownNICID{} - } - - return nic.removeNeighbor(protocol, addr) -} - -// ClearNeighbors removes all IP to MAC address associations. -func (s *Stack) ClearNeighbors(nicID tcpip.NICID, protocol tcpip.NetworkProtocolNumber) tcpip.Error { - s.mu.RLock() - nic, ok := s.nics[nicID] - s.mu.RUnlock() - - if !ok { - return &tcpip.ErrUnknownNICID{} - } - - return nic.clearNeighbors(protocol) -} - -// RegisterTransportEndpoint registers the given endpoint with the stack -// transport dispatcher. Received packets that match the provided id will be -// delivered to the given endpoint; specifying a nic is optional, but -// nic-specific IDs have precedence over global ones. -func (s *Stack) RegisterTransportEndpoint(netProtos []tcpip.NetworkProtocolNumber, protocol tcpip.TransportProtocolNumber, id TransportEndpointID, ep TransportEndpoint, flags ports.Flags, bindToDevice tcpip.NICID) tcpip.Error { - return s.demux.registerEndpoint(netProtos, protocol, id, ep, flags, bindToDevice) -} - -// CheckRegisterTransportEndpoint checks if an endpoint can be registered with -// the stack transport dispatcher. -func (s *Stack) CheckRegisterTransportEndpoint(netProtos []tcpip.NetworkProtocolNumber, protocol tcpip.TransportProtocolNumber, id TransportEndpointID, flags ports.Flags, bindToDevice tcpip.NICID) tcpip.Error { - return s.demux.checkEndpoint(netProtos, protocol, id, flags, bindToDevice) -} - -// UnregisterTransportEndpoint removes the endpoint with the given id from the -// stack transport dispatcher. -func (s *Stack) UnregisterTransportEndpoint(netProtos []tcpip.NetworkProtocolNumber, protocol tcpip.TransportProtocolNumber, id TransportEndpointID, ep TransportEndpoint, flags ports.Flags, bindToDevice tcpip.NICID) { - s.demux.unregisterEndpoint(netProtos, protocol, id, ep, flags, bindToDevice) -} - -// StartTransportEndpointCleanup removes the endpoint with the given id from -// the stack transport dispatcher. It also transitions it to the cleanup stage. -func (s *Stack) StartTransportEndpointCleanup(netProtos []tcpip.NetworkProtocolNumber, protocol tcpip.TransportProtocolNumber, id TransportEndpointID, ep TransportEndpoint, flags ports.Flags, bindToDevice tcpip.NICID) { - s.cleanupEndpointsMu.Lock() - s.cleanupEndpoints[ep] = struct{}{} - s.cleanupEndpointsMu.Unlock() - - s.demux.unregisterEndpoint(netProtos, protocol, id, ep, flags, bindToDevice) -} - -// CompleteTransportEndpointCleanup removes the endpoint from the cleanup -// stage. -func (s *Stack) CompleteTransportEndpointCleanup(ep TransportEndpoint) { - s.cleanupEndpointsMu.Lock() - delete(s.cleanupEndpoints, ep) - s.cleanupEndpointsMu.Unlock() -} - -// FindTransportEndpoint finds an endpoint that most closely matches the provided -// id. If no endpoint is found it returns nil. -func (s *Stack) FindTransportEndpoint(netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber, id TransportEndpointID, nicID tcpip.NICID) TransportEndpoint { - return s.demux.findTransportEndpoint(netProto, transProto, id, nicID) -} - -// RegisterRawTransportEndpoint registers the given endpoint with the stack -// transport dispatcher. Received packets that match the provided transport -// protocol will be delivered to the given endpoint. -func (s *Stack) RegisterRawTransportEndpoint(netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber, ep RawTransportEndpoint) tcpip.Error { - return s.demux.registerRawEndpoint(netProto, transProto, ep) -} - -// UnregisterRawTransportEndpoint removes the endpoint for the transport -// protocol from the stack transport dispatcher. -func (s *Stack) UnregisterRawTransportEndpoint(netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber, ep RawTransportEndpoint) { - s.demux.unregisterRawEndpoint(netProto, transProto, ep) -} - -// RegisterRestoredEndpoint records e as an endpoint that has been restored on -// this stack. -func (s *Stack) RegisterRestoredEndpoint(e RestoredEndpoint) { - s.mu.Lock() - defer s.mu.Unlock() - - s.restoredEndpoints = append(s.restoredEndpoints, e) -} - -// RegisterResumableEndpoint records e as an endpoint that has to be resumed. -func (s *Stack) RegisterResumableEndpoint(e ResumableEndpoint) { - s.mu.Lock() - defer s.mu.Unlock() - - s.resumableEndpoints = append(s.resumableEndpoints, e) -} - -// RegisteredEndpoints returns all endpoints which are currently registered. -func (s *Stack) RegisteredEndpoints() []TransportEndpoint { - s.mu.Lock() - defer s.mu.Unlock() - - var es []TransportEndpoint - for _, e := range s.demux.protocol { - es = append(es, e.transportEndpoints()...) - } - return es -} - -// CleanupEndpoints returns endpoints currently in the cleanup state. -func (s *Stack) CleanupEndpoints() []TransportEndpoint { - s.cleanupEndpointsMu.Lock() - defer s.cleanupEndpointsMu.Unlock() - - es := make([]TransportEndpoint, 0, len(s.cleanupEndpoints)) - for e := range s.cleanupEndpoints { - es = append(es, e) - } - return es -} - -// RestoreCleanupEndpoints adds endpoints to cleanup tracking. This is useful -// for restoring a stack after a save. -func (s *Stack) RestoreCleanupEndpoints(es []TransportEndpoint) { - s.cleanupEndpointsMu.Lock() - defer s.cleanupEndpointsMu.Unlock() - - for _, e := range es { - s.cleanupEndpoints[e] = struct{}{} - } -} - -// Close closes all currently registered transport endpoints. -// -// Endpoints created or modified during this call may not get closed. -func (s *Stack) Close() { - for _, e := range s.RegisteredEndpoints() { - e.Abort() - } - for _, p := range s.transportProtocols { - p.proto.Close() - } - for _, p := range s.networkProtocols { - p.Close() - } -} - -// Wait waits for all transport and link endpoints to halt their worker -// goroutines. -// -// Endpoints created or modified during this call may not get waited on. -// -// Note that link endpoints must be stopped via an implementation specific -// mechanism. -func (s *Stack) Wait() { - for _, e := range s.RegisteredEndpoints() { - e.Wait() - } - for _, e := range s.CleanupEndpoints() { - e.Wait() - } - for _, p := range s.transportProtocols { - p.proto.Wait() - } - for _, p := range s.networkProtocols { - p.Wait() - } - - deferActs := make([]func(), 0) - - s.mu.Lock() - for id, n := range s.nics { - // Remove NIC to ensure that qDisc goroutines are correctly - // terminated on stack teardown. - act, _ := s.removeNICLocked(id) - n.NetworkLinkEndpoint.Wait() - if act != nil { - deferActs = append(deferActs, act) - } - } - s.mu.Unlock() - - for _, act := range deferActs { - act() - } -} - -// Destroy destroys the stack with all endpoints. -func (s *Stack) Destroy() { - s.Close() - s.Wait() -} - -// Pause pauses any protocol level background workers. -func (s *Stack) Pause() { - for _, p := range s.transportProtocols { - p.proto.Pause() - } -} - -// Restore restarts the stack after a restore. This must be called after the -// entire system has been restored. -func (s *Stack) Restore() { - // RestoredEndpoint.Restore() may call other methods on s, so we can't hold - // s.mu while restoring the endpoints. - s.mu.Lock() - eps := s.restoredEndpoints - s.restoredEndpoints = nil - s.mu.Unlock() - for _, e := range eps { - e.Restore(s) - } - // Now resume any protocol level background workers. - for _, p := range s.transportProtocols { - p.proto.Resume() - } -} - -// Resume resumes the stack after a save. -func (s *Stack) Resume() { - s.mu.Lock() - eps := s.resumableEndpoints - s.resumableEndpoints = nil - s.mu.Unlock() - for _, e := range eps { - e.Resume() - } - // Now resume any protocol level background workers. - for _, p := range s.transportProtocols { - p.proto.Resume() - } -} - -// RegisterPacketEndpoint registers ep with the stack, causing it to receive -// all traffic of the specified netProto on the given NIC. If nicID is 0, it -// receives traffic from every NIC. -func (s *Stack) RegisterPacketEndpoint(nicID tcpip.NICID, netProto tcpip.NetworkProtocolNumber, ep PacketEndpoint) tcpip.Error { - s.mu.Lock() - defer s.mu.Unlock() - - // If no NIC is specified, capture on all devices. - if nicID == 0 { - // Register with each NIC. - for _, nic := range s.nics { - nic.registerPacketEndpoint(netProto, ep) - } - return nil - } - - // Capture on a specific device. - nic, ok := s.nics[nicID] - if !ok { - return &tcpip.ErrUnknownNICID{} - } - nic.registerPacketEndpoint(netProto, ep) - - return nil -} - -// UnregisterPacketEndpoint unregisters ep for packets of the specified -// netProto from the specified NIC. If nicID is 0, ep is unregistered from all -// NICs. -func (s *Stack) UnregisterPacketEndpoint(nicID tcpip.NICID, netProto tcpip.NetworkProtocolNumber, ep PacketEndpoint) { - s.mu.Lock() - defer s.mu.Unlock() - s.unregisterPacketEndpointLocked(nicID, netProto, ep) -} - -// +checklocks:s.mu -func (s *Stack) unregisterPacketEndpointLocked(nicID tcpip.NICID, netProto tcpip.NetworkProtocolNumber, ep PacketEndpoint) { - // If no NIC is specified, unregister on all devices. - if nicID == 0 { - // Unregister with each NIC. - for _, nic := range s.nics { - nic.unregisterPacketEndpoint(netProto, ep) - } - return - } - - // Unregister in a single device. - nic, ok := s.nics[nicID] - if !ok { - return - } - nic.unregisterPacketEndpoint(netProto, ep) -} - -// WritePacketToRemote writes a payload on the specified NIC using the provided -// network protocol and remote link address. -func (s *Stack) WritePacketToRemote(nicID tcpip.NICID, remote tcpip.LinkAddress, netProto tcpip.NetworkProtocolNumber, payload buffer.Buffer) tcpip.Error { - s.mu.Lock() - nic, ok := s.nics[nicID] - s.mu.Unlock() - if !ok { - return &tcpip.ErrUnknownDevice{} - } - pkt := NewPacketBuffer(PacketBufferOptions{ - ReserveHeaderBytes: int(nic.MaxHeaderLength()), - Payload: payload, - }) - defer pkt.DecRef() - pkt.NetworkProtocolNumber = netProto - return nic.WritePacketToRemote(remote, pkt) -} - -// WriteRawPacket writes data directly to the specified NIC without adding any -// headers. -func (s *Stack) WriteRawPacket(nicID tcpip.NICID, proto tcpip.NetworkProtocolNumber, payload buffer.Buffer) tcpip.Error { - s.mu.RLock() - nic, ok := s.nics[nicID] - s.mu.RUnlock() - if !ok { - return &tcpip.ErrUnknownNICID{} - } - - pkt := NewPacketBuffer(PacketBufferOptions{ - Payload: payload, - }) - defer pkt.DecRef() - pkt.NetworkProtocolNumber = proto - return nic.writeRawPacketWithLinkHeaderInPayload(pkt) -} - -// NetworkProtocolInstance returns the protocol instance in the stack for the -// specified network protocol. This method is public for protocol implementers -// and tests to use. -func (s *Stack) NetworkProtocolInstance(num tcpip.NetworkProtocolNumber) NetworkProtocol { - if p, ok := s.networkProtocols[num]; ok { - return p - } - return nil -} - -// TransportProtocolInstance returns the protocol instance in the stack for the -// specified transport protocol. This method is public for protocol implementers -// and tests to use. -func (s *Stack) TransportProtocolInstance(num tcpip.TransportProtocolNumber) TransportProtocol { - if pState, ok := s.transportProtocols[num]; ok { - return pState.proto - } - return nil -} - -// AddTCPProbe installs a probe function that will be invoked on every segment -// received by a given TCP endpoint. The probe function is passed a copy of the -// TCP endpoint state before and after processing of the segment. -// -// NOTE: TCPProbe is added only to endpoints created after this call. Endpoints -// created prior to this call will not call the probe function. -// -// Further, installing two different probes back to back can result in some -// endpoints calling the first one and some the second one. There is no -// guarantee provided on which probe will be invoked. Ideally this should only -// be called once per stack. -func (s *Stack) AddTCPProbe(probe TCPProbeFunc) { - s.tcpProbeFunc.Store(probe) -} - -// GetTCPProbe returns the TCPProbeFunc if installed with AddTCPProbe, nil -// otherwise. -func (s *Stack) GetTCPProbe() TCPProbeFunc { - p := s.tcpProbeFunc.Load() - if p == nil { - return nil - } - return p.(TCPProbeFunc) -} - -// RemoveTCPProbe removes an installed TCP probe. -// -// NOTE: This only ensures that endpoints created after this call do not -// have a probe attached. Endpoints already created will continue to invoke -// TCP probe. -func (s *Stack) RemoveTCPProbe() { - // This must be TCPProbeFunc(nil) because atomic.Value.Store(nil) panics. - s.tcpProbeFunc.Store(TCPProbeFunc(nil)) -} - -// JoinGroup joins the given multicast group on the given NIC. -func (s *Stack) JoinGroup(protocol tcpip.NetworkProtocolNumber, nicID tcpip.NICID, multicastAddr tcpip.Address) tcpip.Error { - s.mu.RLock() - defer s.mu.RUnlock() - - if nic, ok := s.nics[nicID]; ok { - return nic.joinGroup(protocol, multicastAddr) - } - return &tcpip.ErrUnknownNICID{} -} - -// LeaveGroup leaves the given multicast group on the given NIC. -func (s *Stack) LeaveGroup(protocol tcpip.NetworkProtocolNumber, nicID tcpip.NICID, multicastAddr tcpip.Address) tcpip.Error { - s.mu.RLock() - defer s.mu.RUnlock() - - if nic, ok := s.nics[nicID]; ok { - return nic.leaveGroup(protocol, multicastAddr) - } - return &tcpip.ErrUnknownNICID{} -} - -// IsInGroup returns true if the NIC with ID nicID has joined the multicast -// group multicastAddr. -func (s *Stack) IsInGroup(nicID tcpip.NICID, multicastAddr tcpip.Address) (bool, tcpip.Error) { - s.mu.RLock() - defer s.mu.RUnlock() - - if nic, ok := s.nics[nicID]; ok { - return nic.isInGroup(multicastAddr), nil - } - return false, &tcpip.ErrUnknownNICID{} -} - -// IPTables returns the stack's iptables. -func (s *Stack) IPTables() *IPTables { - return s.tables -} - -// ICMPLimit returns the maximum number of ICMP messages that can be sent -// in one second. -func (s *Stack) ICMPLimit() rate.Limit { - return s.icmpRateLimiter.Limit() -} - -// SetICMPLimit sets the maximum number of ICMP messages that be sent -// in one second. -func (s *Stack) SetICMPLimit(newLimit rate.Limit) { - s.icmpRateLimiter.SetLimit(newLimit) -} - -// ICMPBurst returns the maximum number of ICMP messages that can be sent -// in a single burst. -func (s *Stack) ICMPBurst() int { - return s.icmpRateLimiter.Burst() -} - -// SetICMPBurst sets the maximum number of ICMP messages that can be sent -// in a single burst. -func (s *Stack) SetICMPBurst(burst int) { - s.icmpRateLimiter.SetBurst(burst) -} - -// AllowICMPMessage returns true if we the rate limiter allows at least one -// ICMP message to be sent at this instant. -func (s *Stack) AllowICMPMessage() bool { - return s.icmpRateLimiter.Allow() -} - -// GetNetworkEndpoint returns the NetworkEndpoint with the specified protocol -// number installed on the specified NIC. -func (s *Stack) GetNetworkEndpoint(nicID tcpip.NICID, proto tcpip.NetworkProtocolNumber) (NetworkEndpoint, tcpip.Error) { - s.mu.Lock() - defer s.mu.Unlock() - - nic, ok := s.nics[nicID] - if !ok { - return nil, &tcpip.ErrUnknownNICID{} - } - - return nic.getNetworkEndpoint(proto), nil -} - -// NUDConfigurations gets the per-interface NUD configurations. -func (s *Stack) NUDConfigurations(id tcpip.NICID, proto tcpip.NetworkProtocolNumber) (NUDConfigurations, tcpip.Error) { - s.mu.RLock() - nic, ok := s.nics[id] - s.mu.RUnlock() - - if !ok { - return NUDConfigurations{}, &tcpip.ErrUnknownNICID{} - } - - return nic.nudConfigs(proto) -} - -// SetNUDConfigurations sets the per-interface NUD configurations. -// -// Note, if c contains invalid NUD configuration values, it will be fixed to -// use default values for the erroneous values. -func (s *Stack) SetNUDConfigurations(id tcpip.NICID, proto tcpip.NetworkProtocolNumber, c NUDConfigurations) tcpip.Error { - s.mu.RLock() - nic, ok := s.nics[id] - s.mu.RUnlock() - - if !ok { - return &tcpip.ErrUnknownNICID{} - } - - return nic.setNUDConfigs(proto, c) -} - -// Seed returns a 32 bit value that can be used as a seed value. -// -// NOTE: The seed is generated once during stack initialization only. -func (s *Stack) Seed() uint32 { - return s.seed -} - -// InsecureRNG returns a reference to a pseudo random generator that can be used -// to generate random numbers as required. It is not cryptographically secure -// and should not be used for security sensitive work. -func (s *Stack) InsecureRNG() *rand.Rand { - return s.insecureRNG -} - -// SecureRNG returns the stack's cryptographically secure random number -// generator. -func (s *Stack) SecureRNG() cryptorand.RNG { - return s.secureRNG -} - -// FindNICNameFromID returns the name of the NIC for the given NICID. -func (s *Stack) FindNICNameFromID(id tcpip.NICID) string { - s.mu.RLock() - defer s.mu.RUnlock() - - nic, ok := s.nics[id] - if !ok { - return "" - } - - return nic.Name() -} - -// ParseResult indicates the result of a parsing attempt. -type ParseResult int - -const ( - // ParsedOK indicates that a packet was successfully parsed. - ParsedOK ParseResult = iota - - // UnknownTransportProtocol indicates that the transport protocol is unknown. - UnknownTransportProtocol - - // TransportLayerParseError indicates that the transport packet was not - // successfully parsed. - TransportLayerParseError -) - -// ParsePacketBufferTransport parses the provided packet buffer's transport -// header. -func (s *Stack) ParsePacketBufferTransport(protocol tcpip.TransportProtocolNumber, pkt *PacketBuffer) ParseResult { - pkt.TransportProtocolNumber = protocol - // Parse the transport header if present. - state, ok := s.transportProtocols[protocol] - if !ok { - return UnknownTransportProtocol - } - - if !state.proto.Parse(pkt) { - return TransportLayerParseError - } - - return ParsedOK -} - -// networkProtocolNumbers returns the network protocol numbers the stack is -// configured with. -func (s *Stack) networkProtocolNumbers() []tcpip.NetworkProtocolNumber { - protos := make([]tcpip.NetworkProtocolNumber, 0, len(s.networkProtocols)) - for p := range s.networkProtocols { - protos = append(protos, p) - } - return protos -} - -func isSubnetBroadcastOnNIC(nic *nic, protocol tcpip.NetworkProtocolNumber, addr tcpip.Address) bool { - addressEndpoint := nic.getAddressOrCreateTempInner(protocol, addr, false /* createTemp */, NeverPrimaryEndpoint) - if addressEndpoint == nil { - return false - } - - subnet := addressEndpoint.Subnet() - addressEndpoint.DecRef() - return subnet.IsBroadcast(addr) -} - -// IsSubnetBroadcast returns true if the provided address is a subnet-local -// broadcast address on the specified NIC and protocol. -// -// Returns false if the NIC is unknown or if the protocol is unknown or does -// not support addressing. -// -// If the NIC is not specified, the stack will check all NICs. -func (s *Stack) IsSubnetBroadcast(nicID tcpip.NICID, protocol tcpip.NetworkProtocolNumber, addr tcpip.Address) bool { - s.mu.RLock() - defer s.mu.RUnlock() - - if nicID != 0 { - nic, ok := s.nics[nicID] - if !ok { - return false - } - - return isSubnetBroadcastOnNIC(nic, protocol, addr) - } - - for _, nic := range s.nics { - if isSubnetBroadcastOnNIC(nic, protocol, addr) { - return true - } - } - - return false -} - -// PacketEndpointWriteSupported returns true iff packet endpoints support write -// operations. -func (s *Stack) PacketEndpointWriteSupported() bool { - return s.packetEndpointWriteSupported -} - -// SetNICStack moves the network device to the specified network namespace. -func (s *Stack) SetNICStack(id tcpip.NICID, peer *Stack) (tcpip.NICID, tcpip.Error) { - s.mu.Lock() - nic, ok := s.nics[id] - if !ok { - s.mu.Unlock() - return 0, &tcpip.ErrUnknownNICID{} - } - if s == peer { - s.mu.Unlock() - return id, nil - } - delete(s.nics, id) - - // Remove routes in-place. n tracks the number of routes written. - s.RemoveRoutes(func(r tcpip.Route) bool { return r.NIC == id }) - ne := nic.NetworkLinkEndpoint.(LinkEndpoint) - deferAct, err := nic.remove(false /* closeLinkEndpoint */) - s.mu.Unlock() - if deferAct != nil { - deferAct() - } - if err != nil { - return 0, err - } - - id = tcpip.NICID(peer.NextNICID()) - return id, peer.CreateNICWithOptions(id, ne, NICOptions{Name: nic.Name()}) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/stack_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/stack_mutex.go deleted file mode 100644 index ef67287332..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/stack_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type stackRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var stacklockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type stacklockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *stackRWMutex) Lock() { - locking.AddGLock(stackprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *stackRWMutex) NestedLock(i stacklockNameIndex) { - locking.AddGLock(stackprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *stackRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(stackprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *stackRWMutex) NestedUnlock(i stacklockNameIndex) { - m.mu.Unlock() - locking.DelGLock(stackprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *stackRWMutex) RLock() { - locking.AddGLock(stackprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *stackRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(stackprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *stackRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *stackRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *stackRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var stackprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func stackinitLockNames() {} - -func init() { - stackinitLockNames() - stackprefixIndex = locking.NewMutexClass(reflect.TypeOf(stackRWMutex{}), stacklockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/stack_options.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/stack_options.go deleted file mode 100644 index 57af874a7f..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/stack_options.go +++ /dev/null @@ -1,125 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "time" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -const ( - // MinBufferSize is the smallest size of a receive or send buffer. - MinBufferSize = 4 << 10 // 4 KiB - - // DefaultBufferSize is the default size of the send/recv buffer for a - // transport endpoint. - DefaultBufferSize = 212 << 10 // 212 KiB - - // DefaultMaxBufferSize is the default maximum permitted size of a - // send/receive buffer. - DefaultMaxBufferSize = 4 << 20 // 4 MiB - - // defaultTCPInvalidRateLimit is the default value for - // stack.TCPInvalidRateLimit. - defaultTCPInvalidRateLimit = 500 * time.Millisecond -) - -// ReceiveBufferSizeOption is used by stack.(Stack*).Option/SetOption to -// get/set the default, min and max receive buffer sizes. -type ReceiveBufferSizeOption struct { - Min int - Default int - Max int -} - -// TCPInvalidRateLimitOption is used by stack.(Stack*).Option/SetOption to get/set -// stack.tcpInvalidRateLimit. -type TCPInvalidRateLimitOption time.Duration - -// SetOption allows setting stack wide options. -func (s *Stack) SetOption(option any) tcpip.Error { - switch v := option.(type) { - case tcpip.SendBufferSizeOption: - // Make sure we don't allow lowering the buffer below minimum - // required for stack to work. - if v.Min < MinBufferSize { - return &tcpip.ErrInvalidOptionValue{} - } - - if v.Default < v.Min || v.Default > v.Max { - return &tcpip.ErrInvalidOptionValue{} - } - - s.mu.Lock() - s.sendBufferSize = v - s.mu.Unlock() - return nil - - case tcpip.ReceiveBufferSizeOption: - // Make sure we don't allow lowering the buffer below minimum - // required for stack to work. - if v.Min < MinBufferSize { - return &tcpip.ErrInvalidOptionValue{} - } - - if v.Default < v.Min || v.Default > v.Max { - return &tcpip.ErrInvalidOptionValue{} - } - - s.mu.Lock() - s.receiveBufferSize = v - s.mu.Unlock() - return nil - - case TCPInvalidRateLimitOption: - if v < 0 { - return &tcpip.ErrInvalidOptionValue{} - } - s.mu.Lock() - s.tcpInvalidRateLimit = time.Duration(v) - s.mu.Unlock() - return nil - - default: - return &tcpip.ErrUnknownProtocolOption{} - } -} - -// Option allows retrieving stack wide options. -func (s *Stack) Option(option any) tcpip.Error { - switch v := option.(type) { - case *tcpip.SendBufferSizeOption: - s.mu.RLock() - *v = s.sendBufferSize - s.mu.RUnlock() - return nil - - case *tcpip.ReceiveBufferSizeOption: - s.mu.RLock() - *v = s.receiveBufferSize - s.mu.RUnlock() - return nil - - case *TCPInvalidRateLimitOption: - s.mu.RLock() - *v = TCPInvalidRateLimitOption(s.tcpInvalidRateLimit) - s.mu.RUnlock() - return nil - - default: - return &tcpip.ErrUnknownProtocolOption{} - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/stack_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/stack_state_autogen.go deleted file mode 100644 index b3f89110d8..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/stack_state_autogen.go +++ /dev/null @@ -1,2991 +0,0 @@ -// automatically generated by stateify. - -package stack - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (r *addressStateRefs) StateTypeName() string { - return "pkg/tcpip/stack.addressStateRefs" -} - -func (r *addressStateRefs) StateFields() []string { - return []string{ - "refCount", - } -} - -func (r *addressStateRefs) beforeSave() {} - -// +checklocksignore -func (r *addressStateRefs) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.refCount) -} - -// +checklocksignore -func (r *addressStateRefs) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.refCount) - stateSourceObject.AfterLoad(func() { r.afterLoad(ctx) }) -} - -func (a *AddressableEndpointState) StateTypeName() string { - return "pkg/tcpip/stack.AddressableEndpointState" -} - -func (a *AddressableEndpointState) StateFields() []string { - return []string{ - "networkEndpoint", - "options", - } -} - -func (a *AddressableEndpointState) beforeSave() {} - -// +checklocksignore -func (a *AddressableEndpointState) StateSave(stateSinkObject state.Sink) { - a.beforeSave() - stateSinkObject.Save(0, &a.networkEndpoint) - stateSinkObject.Save(1, &a.options) -} - -func (a *AddressableEndpointState) afterLoad(context.Context) {} - -// +checklocksignore -func (a *AddressableEndpointState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &a.networkEndpoint) - stateSourceObject.Load(1, &a.options) -} - -func (a *AddressableEndpointStateOptions) StateTypeName() string { - return "pkg/tcpip/stack.AddressableEndpointStateOptions" -} - -func (a *AddressableEndpointStateOptions) StateFields() []string { - return []string{ - "HiddenWhileDisabled", - } -} - -func (a *AddressableEndpointStateOptions) beforeSave() {} - -// +checklocksignore -func (a *AddressableEndpointStateOptions) StateSave(stateSinkObject state.Sink) { - a.beforeSave() - stateSinkObject.Save(0, &a.HiddenWhileDisabled) -} - -func (a *AddressableEndpointStateOptions) afterLoad(context.Context) {} - -// +checklocksignore -func (a *AddressableEndpointStateOptions) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &a.HiddenWhileDisabled) -} - -func (a *addressState) StateTypeName() string { - return "pkg/tcpip/stack.addressState" -} - -func (a *addressState) StateFields() []string { - return []string{ - "addressableEndpointState", - "addr", - "subnet", - "temporary", - "refs", - "kind", - "configType", - "lifetimes", - "disp", - } -} - -func (a *addressState) beforeSave() {} - -// +checklocksignore -func (a *addressState) StateSave(stateSinkObject state.Sink) { - a.beforeSave() - stateSinkObject.Save(0, &a.addressableEndpointState) - stateSinkObject.Save(1, &a.addr) - stateSinkObject.Save(2, &a.subnet) - stateSinkObject.Save(3, &a.temporary) - stateSinkObject.Save(4, &a.refs) - stateSinkObject.Save(5, &a.kind) - stateSinkObject.Save(6, &a.configType) - stateSinkObject.Save(7, &a.lifetimes) - stateSinkObject.Save(8, &a.disp) -} - -func (a *addressState) afterLoad(context.Context) {} - -// +checklocksignore -func (a *addressState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &a.addressableEndpointState) - stateSourceObject.Load(1, &a.addr) - stateSourceObject.Load(2, &a.subnet) - stateSourceObject.Load(3, &a.temporary) - stateSourceObject.Load(4, &a.refs) - stateSourceObject.Load(5, &a.kind) - stateSourceObject.Load(6, &a.configType) - stateSourceObject.Load(7, &a.lifetimes) - stateSourceObject.Load(8, &a.disp) -} - -func (p *bridgePort) StateTypeName() string { - return "pkg/tcpip/stack.bridgePort" -} - -func (p *bridgePort) StateFields() []string { - return []string{ - "bridge", - "nic", - } -} - -func (p *bridgePort) beforeSave() {} - -// +checklocksignore -func (p *bridgePort) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - stateSinkObject.Save(0, &p.bridge) - stateSinkObject.Save(1, &p.nic) -} - -func (p *bridgePort) afterLoad(context.Context) {} - -// +checklocksignore -func (p *bridgePort) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.bridge) - stateSourceObject.Load(1, &p.nic) -} - -func (b *BridgeEndpoint) StateTypeName() string { - return "pkg/tcpip/stack.BridgeEndpoint" -} - -func (b *BridgeEndpoint) StateFields() []string { - return []string{ - "ports", - "dispatcher", - "addr", - "attached", - "mtu", - "maxHeaderLength", - } -} - -func (b *BridgeEndpoint) beforeSave() {} - -// +checklocksignore -func (b *BridgeEndpoint) StateSave(stateSinkObject state.Sink) { - b.beforeSave() - stateSinkObject.Save(0, &b.ports) - stateSinkObject.Save(1, &b.dispatcher) - stateSinkObject.Save(2, &b.addr) - stateSinkObject.Save(3, &b.attached) - stateSinkObject.Save(4, &b.mtu) - stateSinkObject.Save(5, &b.maxHeaderLength) -} - -func (b *BridgeEndpoint) afterLoad(context.Context) {} - -// +checklocksignore -func (b *BridgeEndpoint) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &b.ports) - stateSourceObject.Load(1, &b.dispatcher) - stateSourceObject.Load(2, &b.addr) - stateSourceObject.Load(3, &b.attached) - stateSourceObject.Load(4, &b.mtu) - stateSourceObject.Load(5, &b.maxHeaderLength) -} - -func (t *tuple) StateTypeName() string { - return "pkg/tcpip/stack.tuple" -} - -func (t *tuple) StateFields() []string { - return []string{ - "tupleEntry", - "conn", - "reply", - "tupleID", - } -} - -func (t *tuple) beforeSave() {} - -// +checklocksignore -func (t *tuple) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.tupleEntry) - stateSinkObject.Save(1, &t.conn) - stateSinkObject.Save(2, &t.reply) - stateSinkObject.Save(3, &t.tupleID) -} - -func (t *tuple) afterLoad(context.Context) {} - -// +checklocksignore -func (t *tuple) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.tupleEntry) - stateSourceObject.Load(1, &t.conn) - stateSourceObject.Load(2, &t.reply) - stateSourceObject.Load(3, &t.tupleID) -} - -func (ti *tupleID) StateTypeName() string { - return "pkg/tcpip/stack.tupleID" -} - -func (ti *tupleID) StateFields() []string { - return []string{ - "srcAddr", - "srcPortOrEchoRequestIdent", - "dstAddr", - "dstPortOrEchoReplyIdent", - "transProto", - "netProto", - } -} - -func (ti *tupleID) beforeSave() {} - -// +checklocksignore -func (ti *tupleID) StateSave(stateSinkObject state.Sink) { - ti.beforeSave() - stateSinkObject.Save(0, &ti.srcAddr) - stateSinkObject.Save(1, &ti.srcPortOrEchoRequestIdent) - stateSinkObject.Save(2, &ti.dstAddr) - stateSinkObject.Save(3, &ti.dstPortOrEchoReplyIdent) - stateSinkObject.Save(4, &ti.transProto) - stateSinkObject.Save(5, &ti.netProto) -} - -func (ti *tupleID) afterLoad(context.Context) {} - -// +checklocksignore -func (ti *tupleID) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &ti.srcAddr) - stateSourceObject.Load(1, &ti.srcPortOrEchoRequestIdent) - stateSourceObject.Load(2, &ti.dstAddr) - stateSourceObject.Load(3, &ti.dstPortOrEchoReplyIdent) - stateSourceObject.Load(4, &ti.transProto) - stateSourceObject.Load(5, &ti.netProto) -} - -func (cn *conn) StateTypeName() string { - return "pkg/tcpip/stack.conn" -} - -func (cn *conn) StateFields() []string { - return []string{ - "ct", - "original", - "reply", - "finalizeResult", - "sourceManip", - "destinationManip", - "tcb", - "lastUsed", - } -} - -func (cn *conn) beforeSave() {} - -// +checklocksignore -func (cn *conn) StateSave(stateSinkObject state.Sink) { - cn.beforeSave() - stateSinkObject.Save(0, &cn.ct) - stateSinkObject.Save(1, &cn.original) - stateSinkObject.Save(2, &cn.reply) - stateSinkObject.Save(3, &cn.finalizeResult) - stateSinkObject.Save(4, &cn.sourceManip) - stateSinkObject.Save(5, &cn.destinationManip) - stateSinkObject.Save(6, &cn.tcb) - stateSinkObject.Save(7, &cn.lastUsed) -} - -func (cn *conn) afterLoad(context.Context) {} - -// +checklocksignore -func (cn *conn) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &cn.ct) - stateSourceObject.Load(1, &cn.original) - stateSourceObject.Load(2, &cn.reply) - stateSourceObject.Load(3, &cn.finalizeResult) - stateSourceObject.Load(4, &cn.sourceManip) - stateSourceObject.Load(5, &cn.destinationManip) - stateSourceObject.Load(6, &cn.tcb) - stateSourceObject.Load(7, &cn.lastUsed) -} - -func (ct *ConnTrack) StateTypeName() string { - return "pkg/tcpip/stack.ConnTrack" -} - -func (ct *ConnTrack) StateFields() []string { - return []string{ - "seed", - "clock", - "buckets", - } -} - -func (ct *ConnTrack) beforeSave() {} - -// +checklocksignore -func (ct *ConnTrack) StateSave(stateSinkObject state.Sink) { - ct.beforeSave() - stateSinkObject.Save(0, &ct.seed) - stateSinkObject.Save(1, &ct.clock) - stateSinkObject.Save(2, &ct.buckets) -} - -func (ct *ConnTrack) afterLoad(context.Context) {} - -// +checklocksignore -func (ct *ConnTrack) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &ct.seed) - stateSourceObject.Load(1, &ct.clock) - stateSourceObject.Load(2, &ct.buckets) -} - -func (bkt *bucket) StateTypeName() string { - return "pkg/tcpip/stack.bucket" -} - -func (bkt *bucket) StateFields() []string { - return []string{ - "tuples", - } -} - -func (bkt *bucket) beforeSave() {} - -// +checklocksignore -func (bkt *bucket) StateSave(stateSinkObject state.Sink) { - bkt.beforeSave() - stateSinkObject.Save(0, &bkt.tuples) -} - -func (bkt *bucket) afterLoad(context.Context) {} - -// +checklocksignore -func (bkt *bucket) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &bkt.tuples) -} - -func (l *ICMPRateLimiter) StateTypeName() string { - return "pkg/tcpip/stack.ICMPRateLimiter" -} - -func (l *ICMPRateLimiter) StateFields() []string { - return []string{ - "clock", - } -} - -func (l *ICMPRateLimiter) beforeSave() {} - -// +checklocksignore -func (l *ICMPRateLimiter) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.clock) -} - -func (l *ICMPRateLimiter) afterLoad(context.Context) {} - -// +checklocksignore -func (l *ICMPRateLimiter) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.clock) -} - -func (a *AcceptTarget) StateTypeName() string { - return "pkg/tcpip/stack.AcceptTarget" -} - -func (a *AcceptTarget) StateFields() []string { - return []string{ - "NetworkProtocol", - } -} - -func (a *AcceptTarget) beforeSave() {} - -// +checklocksignore -func (a *AcceptTarget) StateSave(stateSinkObject state.Sink) { - a.beforeSave() - stateSinkObject.Save(0, &a.NetworkProtocol) -} - -func (a *AcceptTarget) afterLoad(context.Context) {} - -// +checklocksignore -func (a *AcceptTarget) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &a.NetworkProtocol) -} - -func (d *DropTarget) StateTypeName() string { - return "pkg/tcpip/stack.DropTarget" -} - -func (d *DropTarget) StateFields() []string { - return []string{ - "NetworkProtocol", - } -} - -func (d *DropTarget) beforeSave() {} - -// +checklocksignore -func (d *DropTarget) StateSave(stateSinkObject state.Sink) { - d.beforeSave() - stateSinkObject.Save(0, &d.NetworkProtocol) -} - -func (d *DropTarget) afterLoad(context.Context) {} - -// +checklocksignore -func (d *DropTarget) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &d.NetworkProtocol) -} - -func (rt *RejectIPv4Target) StateTypeName() string { - return "pkg/tcpip/stack.RejectIPv4Target" -} - -func (rt *RejectIPv4Target) StateFields() []string { - return []string{ - "Handler", - "RejectWith", - } -} - -func (rt *RejectIPv4Target) beforeSave() {} - -// +checklocksignore -func (rt *RejectIPv4Target) StateSave(stateSinkObject state.Sink) { - rt.beforeSave() - stateSinkObject.Save(0, &rt.Handler) - stateSinkObject.Save(1, &rt.RejectWith) -} - -func (rt *RejectIPv4Target) afterLoad(context.Context) {} - -// +checklocksignore -func (rt *RejectIPv4Target) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &rt.Handler) - stateSourceObject.Load(1, &rt.RejectWith) -} - -func (rt *RejectIPv6Target) StateTypeName() string { - return "pkg/tcpip/stack.RejectIPv6Target" -} - -func (rt *RejectIPv6Target) StateFields() []string { - return []string{ - "Handler", - "RejectWith", - } -} - -func (rt *RejectIPv6Target) beforeSave() {} - -// +checklocksignore -func (rt *RejectIPv6Target) StateSave(stateSinkObject state.Sink) { - rt.beforeSave() - stateSinkObject.Save(0, &rt.Handler) - stateSinkObject.Save(1, &rt.RejectWith) -} - -func (rt *RejectIPv6Target) afterLoad(context.Context) {} - -// +checklocksignore -func (rt *RejectIPv6Target) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &rt.Handler) - stateSourceObject.Load(1, &rt.RejectWith) -} - -func (e *ErrorTarget) StateTypeName() string { - return "pkg/tcpip/stack.ErrorTarget" -} - -func (e *ErrorTarget) StateFields() []string { - return []string{ - "NetworkProtocol", - } -} - -func (e *ErrorTarget) beforeSave() {} - -// +checklocksignore -func (e *ErrorTarget) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.NetworkProtocol) -} - -func (e *ErrorTarget) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrorTarget) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.NetworkProtocol) -} - -func (u *UserChainTarget) StateTypeName() string { - return "pkg/tcpip/stack.UserChainTarget" -} - -func (u *UserChainTarget) StateFields() []string { - return []string{ - "Name", - "NetworkProtocol", - } -} - -func (u *UserChainTarget) beforeSave() {} - -// +checklocksignore -func (u *UserChainTarget) StateSave(stateSinkObject state.Sink) { - u.beforeSave() - stateSinkObject.Save(0, &u.Name) - stateSinkObject.Save(1, &u.NetworkProtocol) -} - -func (u *UserChainTarget) afterLoad(context.Context) {} - -// +checklocksignore -func (u *UserChainTarget) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &u.Name) - stateSourceObject.Load(1, &u.NetworkProtocol) -} - -func (r *ReturnTarget) StateTypeName() string { - return "pkg/tcpip/stack.ReturnTarget" -} - -func (r *ReturnTarget) StateFields() []string { - return []string{ - "NetworkProtocol", - } -} - -func (r *ReturnTarget) beforeSave() {} - -// +checklocksignore -func (r *ReturnTarget) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.NetworkProtocol) -} - -func (r *ReturnTarget) afterLoad(context.Context) {} - -// +checklocksignore -func (r *ReturnTarget) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.NetworkProtocol) -} - -func (rt *DNATTarget) StateTypeName() string { - return "pkg/tcpip/stack.DNATTarget" -} - -func (rt *DNATTarget) StateFields() []string { - return []string{ - "Addr", - "Port", - "NetworkProtocol", - "ChangeAddress", - "ChangePort", - } -} - -func (rt *DNATTarget) beforeSave() {} - -// +checklocksignore -func (rt *DNATTarget) StateSave(stateSinkObject state.Sink) { - rt.beforeSave() - stateSinkObject.Save(0, &rt.Addr) - stateSinkObject.Save(1, &rt.Port) - stateSinkObject.Save(2, &rt.NetworkProtocol) - stateSinkObject.Save(3, &rt.ChangeAddress) - stateSinkObject.Save(4, &rt.ChangePort) -} - -func (rt *DNATTarget) afterLoad(context.Context) {} - -// +checklocksignore -func (rt *DNATTarget) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &rt.Addr) - stateSourceObject.Load(1, &rt.Port) - stateSourceObject.Load(2, &rt.NetworkProtocol) - stateSourceObject.Load(3, &rt.ChangeAddress) - stateSourceObject.Load(4, &rt.ChangePort) -} - -func (rt *RedirectTarget) StateTypeName() string { - return "pkg/tcpip/stack.RedirectTarget" -} - -func (rt *RedirectTarget) StateFields() []string { - return []string{ - "Port", - "NetworkProtocol", - } -} - -func (rt *RedirectTarget) beforeSave() {} - -// +checklocksignore -func (rt *RedirectTarget) StateSave(stateSinkObject state.Sink) { - rt.beforeSave() - stateSinkObject.Save(0, &rt.Port) - stateSinkObject.Save(1, &rt.NetworkProtocol) -} - -func (rt *RedirectTarget) afterLoad(context.Context) {} - -// +checklocksignore -func (rt *RedirectTarget) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &rt.Port) - stateSourceObject.Load(1, &rt.NetworkProtocol) -} - -func (st *SNATTarget) StateTypeName() string { - return "pkg/tcpip/stack.SNATTarget" -} - -func (st *SNATTarget) StateFields() []string { - return []string{ - "Addr", - "Port", - "NetworkProtocol", - "ChangeAddress", - "ChangePort", - } -} - -func (st *SNATTarget) beforeSave() {} - -// +checklocksignore -func (st *SNATTarget) StateSave(stateSinkObject state.Sink) { - st.beforeSave() - stateSinkObject.Save(0, &st.Addr) - stateSinkObject.Save(1, &st.Port) - stateSinkObject.Save(2, &st.NetworkProtocol) - stateSinkObject.Save(3, &st.ChangeAddress) - stateSinkObject.Save(4, &st.ChangePort) -} - -func (st *SNATTarget) afterLoad(context.Context) {} - -// +checklocksignore -func (st *SNATTarget) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &st.Addr) - stateSourceObject.Load(1, &st.Port) - stateSourceObject.Load(2, &st.NetworkProtocol) - stateSourceObject.Load(3, &st.ChangeAddress) - stateSourceObject.Load(4, &st.ChangePort) -} - -func (mt *MasqueradeTarget) StateTypeName() string { - return "pkg/tcpip/stack.MasqueradeTarget" -} - -func (mt *MasqueradeTarget) StateFields() []string { - return []string{ - "NetworkProtocol", - } -} - -func (mt *MasqueradeTarget) beforeSave() {} - -// +checklocksignore -func (mt *MasqueradeTarget) StateSave(stateSinkObject state.Sink) { - mt.beforeSave() - stateSinkObject.Save(0, &mt.NetworkProtocol) -} - -func (mt *MasqueradeTarget) afterLoad(context.Context) {} - -// +checklocksignore -func (mt *MasqueradeTarget) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &mt.NetworkProtocol) -} - -func (it *IPTables) StateTypeName() string { - return "pkg/tcpip/stack.IPTables" -} - -func (it *IPTables) StateFields() []string { - return []string{ - "connections", - "reaper", - "v4Tables", - "v6Tables", - "modified", - } -} - -// +checklocksignore -func (it *IPTables) StateSave(stateSinkObject state.Sink) { - it.beforeSave() - stateSinkObject.Save(0, &it.connections) - stateSinkObject.Save(1, &it.reaper) - stateSinkObject.Save(2, &it.v4Tables) - stateSinkObject.Save(3, &it.v6Tables) - stateSinkObject.Save(4, &it.modified) -} - -// +checklocksignore -func (it *IPTables) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &it.connections) - stateSourceObject.Load(1, &it.reaper) - stateSourceObject.Load(2, &it.v4Tables) - stateSourceObject.Load(3, &it.v6Tables) - stateSourceObject.Load(4, &it.modified) - stateSourceObject.AfterLoad(func() { it.afterLoad(ctx) }) -} - -func (table *Table) StateTypeName() string { - return "pkg/tcpip/stack.Table" -} - -func (table *Table) StateFields() []string { - return []string{ - "Rules", - "BuiltinChains", - "Underflows", - } -} - -func (table *Table) beforeSave() {} - -// +checklocksignore -func (table *Table) StateSave(stateSinkObject state.Sink) { - table.beforeSave() - stateSinkObject.Save(0, &table.Rules) - stateSinkObject.Save(1, &table.BuiltinChains) - stateSinkObject.Save(2, &table.Underflows) -} - -func (table *Table) afterLoad(context.Context) {} - -// +checklocksignore -func (table *Table) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &table.Rules) - stateSourceObject.Load(1, &table.BuiltinChains) - stateSourceObject.Load(2, &table.Underflows) -} - -func (r *Rule) StateTypeName() string { - return "pkg/tcpip/stack.Rule" -} - -func (r *Rule) StateFields() []string { - return []string{ - "Filter", - "Matchers", - "Target", - } -} - -func (r *Rule) beforeSave() {} - -// +checklocksignore -func (r *Rule) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.Filter) - stateSinkObject.Save(1, &r.Matchers) - stateSinkObject.Save(2, &r.Target) -} - -func (r *Rule) afterLoad(context.Context) {} - -// +checklocksignore -func (r *Rule) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.Filter) - stateSourceObject.Load(1, &r.Matchers) - stateSourceObject.Load(2, &r.Target) -} - -func (fl *IPHeaderFilter) StateTypeName() string { - return "pkg/tcpip/stack.IPHeaderFilter" -} - -func (fl *IPHeaderFilter) StateFields() []string { - return []string{ - "Protocol", - "CheckProtocol", - "Dst", - "DstMask", - "DstInvert", - "Src", - "SrcMask", - "SrcInvert", - "InputInterface", - "InputInterfaceMask", - "InputInterfaceInvert", - "OutputInterface", - "OutputInterfaceMask", - "OutputInterfaceInvert", - } -} - -func (fl *IPHeaderFilter) beforeSave() {} - -// +checklocksignore -func (fl *IPHeaderFilter) StateSave(stateSinkObject state.Sink) { - fl.beforeSave() - stateSinkObject.Save(0, &fl.Protocol) - stateSinkObject.Save(1, &fl.CheckProtocol) - stateSinkObject.Save(2, &fl.Dst) - stateSinkObject.Save(3, &fl.DstMask) - stateSinkObject.Save(4, &fl.DstInvert) - stateSinkObject.Save(5, &fl.Src) - stateSinkObject.Save(6, &fl.SrcMask) - stateSinkObject.Save(7, &fl.SrcInvert) - stateSinkObject.Save(8, &fl.InputInterface) - stateSinkObject.Save(9, &fl.InputInterfaceMask) - stateSinkObject.Save(10, &fl.InputInterfaceInvert) - stateSinkObject.Save(11, &fl.OutputInterface) - stateSinkObject.Save(12, &fl.OutputInterfaceMask) - stateSinkObject.Save(13, &fl.OutputInterfaceInvert) -} - -func (fl *IPHeaderFilter) afterLoad(context.Context) {} - -// +checklocksignore -func (fl *IPHeaderFilter) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &fl.Protocol) - stateSourceObject.Load(1, &fl.CheckProtocol) - stateSourceObject.Load(2, &fl.Dst) - stateSourceObject.Load(3, &fl.DstMask) - stateSourceObject.Load(4, &fl.DstInvert) - stateSourceObject.Load(5, &fl.Src) - stateSourceObject.Load(6, &fl.SrcMask) - stateSourceObject.Load(7, &fl.SrcInvert) - stateSourceObject.Load(8, &fl.InputInterface) - stateSourceObject.Load(9, &fl.InputInterfaceMask) - stateSourceObject.Load(10, &fl.InputInterfaceInvert) - stateSourceObject.Load(11, &fl.OutputInterface) - stateSourceObject.Load(12, &fl.OutputInterfaceMask) - stateSourceObject.Load(13, &fl.OutputInterfaceInvert) -} - -func (d *dynamicCacheEntry) StateTypeName() string { - return "pkg/tcpip/stack.dynamicCacheEntry" -} - -func (d *dynamicCacheEntry) StateFields() []string { - return []string{ - "lru", - "count", - } -} - -func (d *dynamicCacheEntry) beforeSave() {} - -// +checklocksignore -func (d *dynamicCacheEntry) StateSave(stateSinkObject state.Sink) { - d.beforeSave() - stateSinkObject.Save(0, &d.lru) - stateSinkObject.Save(1, &d.count) -} - -func (d *dynamicCacheEntry) afterLoad(context.Context) {} - -// +checklocksignore -func (d *dynamicCacheEntry) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &d.lru) - stateSourceObject.Load(1, &d.count) -} - -func (n *neighborCacheMu) StateTypeName() string { - return "pkg/tcpip/stack.neighborCacheMu" -} - -func (n *neighborCacheMu) StateFields() []string { - return []string{ - "cache", - "dynamic", - } -} - -func (n *neighborCacheMu) beforeSave() {} - -// +checklocksignore -func (n *neighborCacheMu) StateSave(stateSinkObject state.Sink) { - n.beforeSave() - stateSinkObject.Save(0, &n.cache) - stateSinkObject.Save(1, &n.dynamic) -} - -func (n *neighborCacheMu) afterLoad(context.Context) {} - -// +checklocksignore -func (n *neighborCacheMu) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &n.cache) - stateSourceObject.Load(1, &n.dynamic) -} - -func (n *neighborCache) StateTypeName() string { - return "pkg/tcpip/stack.neighborCache" -} - -func (n *neighborCache) StateFields() []string { - return []string{ - "nic", - "state", - "linkRes", - "mu", - } -} - -func (n *neighborCache) beforeSave() {} - -// +checklocksignore -func (n *neighborCache) StateSave(stateSinkObject state.Sink) { - n.beforeSave() - stateSinkObject.Save(0, &n.nic) - stateSinkObject.Save(1, &n.state) - stateSinkObject.Save(2, &n.linkRes) - stateSinkObject.Save(3, &n.mu) -} - -func (n *neighborCache) afterLoad(context.Context) {} - -// +checklocksignore -func (n *neighborCache) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &n.nic) - stateSourceObject.Load(1, &n.state) - stateSourceObject.Load(2, &n.linkRes) - stateSourceObject.Load(3, &n.mu) -} - -func (l *neighborEntryList) StateTypeName() string { - return "pkg/tcpip/stack.neighborEntryList" -} - -func (l *neighborEntryList) StateFields() []string { - return []string{ - "head", - "tail", - } -} - -func (l *neighborEntryList) beforeSave() {} - -// +checklocksignore -func (l *neighborEntryList) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.head) - stateSinkObject.Save(1, &l.tail) -} - -func (l *neighborEntryList) afterLoad(context.Context) {} - -// +checklocksignore -func (l *neighborEntryList) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.head) - stateSourceObject.Load(1, &l.tail) -} - -func (e *neighborEntryEntry) StateTypeName() string { - return "pkg/tcpip/stack.neighborEntryEntry" -} - -func (e *neighborEntryEntry) StateFields() []string { - return []string{ - "next", - "prev", - } -} - -func (e *neighborEntryEntry) beforeSave() {} - -// +checklocksignore -func (e *neighborEntryEntry) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.next) - stateSinkObject.Save(1, &e.prev) -} - -func (e *neighborEntryEntry) afterLoad(context.Context) {} - -// +checklocksignore -func (e *neighborEntryEntry) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.next) - stateSourceObject.Load(1, &e.prev) -} - -func (l *linkResolver) StateTypeName() string { - return "pkg/tcpip/stack.linkResolver" -} - -func (l *linkResolver) StateFields() []string { - return []string{ - "resolver", - "neigh", - } -} - -func (l *linkResolver) beforeSave() {} - -// +checklocksignore -func (l *linkResolver) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.resolver) - stateSinkObject.Save(1, &l.neigh) -} - -func (l *linkResolver) afterLoad(context.Context) {} - -// +checklocksignore -func (l *linkResolver) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.resolver) - stateSourceObject.Load(1, &l.neigh) -} - -func (n *nic) StateTypeName() string { - return "pkg/tcpip/stack.nic" -} - -func (n *nic) StateFields() []string { - return []string{ - "NetworkLinkEndpoint", - "stack", - "id", - "name", - "context", - "stats", - "networkEndpoints", - "linkAddrResolvers", - "duplicateAddressDetectors", - "enabled", - "spoofing", - "promiscuous", - "linkResQueue", - "packetEPs", - "qDisc", - "deliverLinkPackets", - "Primary", - } -} - -func (n *nic) beforeSave() {} - -// +checklocksignore -func (n *nic) StateSave(stateSinkObject state.Sink) { - n.beforeSave() - stateSinkObject.Save(0, &n.NetworkLinkEndpoint) - stateSinkObject.Save(1, &n.stack) - stateSinkObject.Save(2, &n.id) - stateSinkObject.Save(3, &n.name) - stateSinkObject.Save(4, &n.context) - stateSinkObject.Save(5, &n.stats) - stateSinkObject.Save(6, &n.networkEndpoints) - stateSinkObject.Save(7, &n.linkAddrResolvers) - stateSinkObject.Save(8, &n.duplicateAddressDetectors) - stateSinkObject.Save(9, &n.enabled) - stateSinkObject.Save(10, &n.spoofing) - stateSinkObject.Save(11, &n.promiscuous) - stateSinkObject.Save(12, &n.linkResQueue) - stateSinkObject.Save(13, &n.packetEPs) - stateSinkObject.Save(14, &n.qDisc) - stateSinkObject.Save(15, &n.deliverLinkPackets) - stateSinkObject.Save(16, &n.Primary) -} - -func (n *nic) afterLoad(context.Context) {} - -// +checklocksignore -func (n *nic) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &n.NetworkLinkEndpoint) - stateSourceObject.Load(1, &n.stack) - stateSourceObject.Load(2, &n.id) - stateSourceObject.Load(3, &n.name) - stateSourceObject.Load(4, &n.context) - stateSourceObject.Load(5, &n.stats) - stateSourceObject.Load(6, &n.networkEndpoints) - stateSourceObject.Load(7, &n.linkAddrResolvers) - stateSourceObject.Load(8, &n.duplicateAddressDetectors) - stateSourceObject.Load(9, &n.enabled) - stateSourceObject.Load(10, &n.spoofing) - stateSourceObject.Load(11, &n.promiscuous) - stateSourceObject.Load(12, &n.linkResQueue) - stateSourceObject.Load(13, &n.packetEPs) - stateSourceObject.Load(14, &n.qDisc) - stateSourceObject.Load(15, &n.deliverLinkPackets) - stateSourceObject.Load(16, &n.Primary) -} - -func (p *packetEndpointList) StateTypeName() string { - return "pkg/tcpip/stack.packetEndpointList" -} - -func (p *packetEndpointList) StateFields() []string { - return []string{ - "eps", - } -} - -func (p *packetEndpointList) beforeSave() {} - -// +checklocksignore -func (p *packetEndpointList) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - stateSinkObject.Save(0, &p.eps) -} - -func (p *packetEndpointList) afterLoad(context.Context) {} - -// +checklocksignore -func (p *packetEndpointList) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.eps) -} - -func (qDisc *delegatingQueueingDiscipline) StateTypeName() string { - return "pkg/tcpip/stack.delegatingQueueingDiscipline" -} - -func (qDisc *delegatingQueueingDiscipline) StateFields() []string { - return []string{ - "LinkWriter", - } -} - -func (qDisc *delegatingQueueingDiscipline) beforeSave() {} - -// +checklocksignore -func (qDisc *delegatingQueueingDiscipline) StateSave(stateSinkObject state.Sink) { - qDisc.beforeSave() - stateSinkObject.Save(0, &qDisc.LinkWriter) -} - -func (qDisc *delegatingQueueingDiscipline) afterLoad(context.Context) {} - -// +checklocksignore -func (qDisc *delegatingQueueingDiscipline) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &qDisc.LinkWriter) -} - -func (s *sharedStats) StateTypeName() string { - return "pkg/tcpip/stack.sharedStats" -} - -func (s *sharedStats) StateFields() []string { - return []string{ - "local", - "multiCounterNICStats", - } -} - -func (s *sharedStats) beforeSave() {} - -// +checklocksignore -func (s *sharedStats) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.local) - stateSinkObject.Save(1, &s.multiCounterNICStats) -} - -func (s *sharedStats) afterLoad(context.Context) {} - -// +checklocksignore -func (s *sharedStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.local) - stateSourceObject.Load(1, &s.multiCounterNICStats) -} - -func (m *multiCounterNICPacketStats) StateTypeName() string { - return "pkg/tcpip/stack.multiCounterNICPacketStats" -} - -func (m *multiCounterNICPacketStats) StateFields() []string { - return []string{ - "packets", - "bytes", - } -} - -func (m *multiCounterNICPacketStats) beforeSave() {} - -// +checklocksignore -func (m *multiCounterNICPacketStats) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.packets) - stateSinkObject.Save(1, &m.bytes) -} - -func (m *multiCounterNICPacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (m *multiCounterNICPacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.packets) - stateSourceObject.Load(1, &m.bytes) -} - -func (m *multiCounterNICNeighborStats) StateTypeName() string { - return "pkg/tcpip/stack.multiCounterNICNeighborStats" -} - -func (m *multiCounterNICNeighborStats) StateFields() []string { - return []string{ - "unreachableEntryLookups", - "droppedConfirmationForNoninitiatedNeighbor", - "droppedInvalidLinkAddressConfirmations", - } -} - -func (m *multiCounterNICNeighborStats) beforeSave() {} - -// +checklocksignore -func (m *multiCounterNICNeighborStats) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.unreachableEntryLookups) - stateSinkObject.Save(1, &m.droppedConfirmationForNoninitiatedNeighbor) - stateSinkObject.Save(2, &m.droppedInvalidLinkAddressConfirmations) -} - -func (m *multiCounterNICNeighborStats) afterLoad(context.Context) {} - -// +checklocksignore -func (m *multiCounterNICNeighborStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.unreachableEntryLookups) - stateSourceObject.Load(1, &m.droppedConfirmationForNoninitiatedNeighbor) - stateSourceObject.Load(2, &m.droppedInvalidLinkAddressConfirmations) -} - -func (m *multiCounterNICStats) StateTypeName() string { - return "pkg/tcpip/stack.multiCounterNICStats" -} - -func (m *multiCounterNICStats) StateFields() []string { - return []string{ - "unknownL3ProtocolRcvdPacketCounts", - "unknownL4ProtocolRcvdPacketCounts", - "malformedL4RcvdPackets", - "tx", - "txPacketsDroppedNoBufferSpace", - "rx", - "disabledRx", - "neighbor", - } -} - -func (m *multiCounterNICStats) beforeSave() {} - -// +checklocksignore -func (m *multiCounterNICStats) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.unknownL3ProtocolRcvdPacketCounts) - stateSinkObject.Save(1, &m.unknownL4ProtocolRcvdPacketCounts) - stateSinkObject.Save(2, &m.malformedL4RcvdPackets) - stateSinkObject.Save(3, &m.tx) - stateSinkObject.Save(4, &m.txPacketsDroppedNoBufferSpace) - stateSinkObject.Save(5, &m.rx) - stateSinkObject.Save(6, &m.disabledRx) - stateSinkObject.Save(7, &m.neighbor) -} - -func (m *multiCounterNICStats) afterLoad(context.Context) {} - -// +checklocksignore -func (m *multiCounterNICStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.unknownL3ProtocolRcvdPacketCounts) - stateSourceObject.Load(1, &m.unknownL4ProtocolRcvdPacketCounts) - stateSourceObject.Load(2, &m.malformedL4RcvdPackets) - stateSourceObject.Load(3, &m.tx) - stateSourceObject.Load(4, &m.txPacketsDroppedNoBufferSpace) - stateSourceObject.Load(5, &m.rx) - stateSourceObject.Load(6, &m.disabledRx) - stateSourceObject.Load(7, &m.neighbor) -} - -func (c *NUDConfigurations) StateTypeName() string { - return "pkg/tcpip/stack.NUDConfigurations" -} - -func (c *NUDConfigurations) StateFields() []string { - return []string{ - "BaseReachableTime", - "LearnBaseReachableTime", - "MinRandomFactor", - "MaxRandomFactor", - "RetransmitTimer", - "LearnRetransmitTimer", - "DelayFirstProbeTime", - "MaxMulticastProbes", - "MaxUnicastProbes", - "MaxAnycastDelayTime", - "MaxReachabilityConfirmations", - } -} - -func (c *NUDConfigurations) beforeSave() {} - -// +checklocksignore -func (c *NUDConfigurations) StateSave(stateSinkObject state.Sink) { - c.beforeSave() - stateSinkObject.Save(0, &c.BaseReachableTime) - stateSinkObject.Save(1, &c.LearnBaseReachableTime) - stateSinkObject.Save(2, &c.MinRandomFactor) - stateSinkObject.Save(3, &c.MaxRandomFactor) - stateSinkObject.Save(4, &c.RetransmitTimer) - stateSinkObject.Save(5, &c.LearnRetransmitTimer) - stateSinkObject.Save(6, &c.DelayFirstProbeTime) - stateSinkObject.Save(7, &c.MaxMulticastProbes) - stateSinkObject.Save(8, &c.MaxUnicastProbes) - stateSinkObject.Save(9, &c.MaxAnycastDelayTime) - stateSinkObject.Save(10, &c.MaxReachabilityConfirmations) -} - -func (c *NUDConfigurations) afterLoad(context.Context) {} - -// +checklocksignore -func (c *NUDConfigurations) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &c.BaseReachableTime) - stateSourceObject.Load(1, &c.LearnBaseReachableTime) - stateSourceObject.Load(2, &c.MinRandomFactor) - stateSourceObject.Load(3, &c.MaxRandomFactor) - stateSourceObject.Load(4, &c.RetransmitTimer) - stateSourceObject.Load(5, &c.LearnRetransmitTimer) - stateSourceObject.Load(6, &c.DelayFirstProbeTime) - stateSourceObject.Load(7, &c.MaxMulticastProbes) - stateSourceObject.Load(8, &c.MaxUnicastProbes) - stateSourceObject.Load(9, &c.MaxAnycastDelayTime) - stateSourceObject.Load(10, &c.MaxReachabilityConfirmations) -} - -func (n *nudStateMu) StateTypeName() string { - return "pkg/tcpip/stack.nudStateMu" -} - -func (n *nudStateMu) StateFields() []string { - return []string{ - "config", - "reachableTime", - "expiration", - "prevBaseReachableTime", - "prevMinRandomFactor", - "prevMaxRandomFactor", - } -} - -func (n *nudStateMu) beforeSave() {} - -// +checklocksignore -func (n *nudStateMu) StateSave(stateSinkObject state.Sink) { - n.beforeSave() - stateSinkObject.Save(0, &n.config) - stateSinkObject.Save(1, &n.reachableTime) - stateSinkObject.Save(2, &n.expiration) - stateSinkObject.Save(3, &n.prevBaseReachableTime) - stateSinkObject.Save(4, &n.prevMinRandomFactor) - stateSinkObject.Save(5, &n.prevMaxRandomFactor) -} - -func (n *nudStateMu) afterLoad(context.Context) {} - -// +checklocksignore -func (n *nudStateMu) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &n.config) - stateSourceObject.Load(1, &n.reachableTime) - stateSourceObject.Load(2, &n.expiration) - stateSourceObject.Load(3, &n.prevBaseReachableTime) - stateSourceObject.Load(4, &n.prevMinRandomFactor) - stateSourceObject.Load(5, &n.prevMaxRandomFactor) -} - -func (s *NUDState) StateTypeName() string { - return "pkg/tcpip/stack.NUDState" -} - -func (s *NUDState) StateFields() []string { - return []string{ - "clock", - "mu", - } -} - -func (s *NUDState) beforeSave() {} - -// +checklocksignore -func (s *NUDState) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.clock) - stateSinkObject.Save(1, &s.mu) -} - -func (s *NUDState) afterLoad(context.Context) {} - -// +checklocksignore -func (s *NUDState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.clock) - stateSourceObject.Load(1, &s.mu) -} - -func (pk *PacketBuffer) StateTypeName() string { - return "pkg/tcpip/stack.PacketBuffer" -} - -func (pk *PacketBuffer) StateFields() []string { - return []string{ - "packetBufferRefs", - "buf", - "reserved", - "pushed", - "consumed", - "headers", - "NetworkProtocolNumber", - "TransportProtocolNumber", - "Hash", - "Owner", - "EgressRoute", - "GSOOptions", - "snatDone", - "dnatDone", - "PktType", - "NICID", - "RXChecksumValidated", - "NetworkPacketInfo", - "tuple", - } -} - -func (pk *PacketBuffer) beforeSave() {} - -// +checklocksignore -func (pk *PacketBuffer) StateSave(stateSinkObject state.Sink) { - pk.beforeSave() - stateSinkObject.Save(0, &pk.packetBufferRefs) - stateSinkObject.Save(1, &pk.buf) - stateSinkObject.Save(2, &pk.reserved) - stateSinkObject.Save(3, &pk.pushed) - stateSinkObject.Save(4, &pk.consumed) - stateSinkObject.Save(5, &pk.headers) - stateSinkObject.Save(6, &pk.NetworkProtocolNumber) - stateSinkObject.Save(7, &pk.TransportProtocolNumber) - stateSinkObject.Save(8, &pk.Hash) - stateSinkObject.Save(9, &pk.Owner) - stateSinkObject.Save(10, &pk.EgressRoute) - stateSinkObject.Save(11, &pk.GSOOptions) - stateSinkObject.Save(12, &pk.snatDone) - stateSinkObject.Save(13, &pk.dnatDone) - stateSinkObject.Save(14, &pk.PktType) - stateSinkObject.Save(15, &pk.NICID) - stateSinkObject.Save(16, &pk.RXChecksumValidated) - stateSinkObject.Save(17, &pk.NetworkPacketInfo) - stateSinkObject.Save(18, &pk.tuple) -} - -func (pk *PacketBuffer) afterLoad(context.Context) {} - -// +checklocksignore -func (pk *PacketBuffer) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &pk.packetBufferRefs) - stateSourceObject.Load(1, &pk.buf) - stateSourceObject.Load(2, &pk.reserved) - stateSourceObject.Load(3, &pk.pushed) - stateSourceObject.Load(4, &pk.consumed) - stateSourceObject.Load(5, &pk.headers) - stateSourceObject.Load(6, &pk.NetworkProtocolNumber) - stateSourceObject.Load(7, &pk.TransportProtocolNumber) - stateSourceObject.Load(8, &pk.Hash) - stateSourceObject.Load(9, &pk.Owner) - stateSourceObject.Load(10, &pk.EgressRoute) - stateSourceObject.Load(11, &pk.GSOOptions) - stateSourceObject.Load(12, &pk.snatDone) - stateSourceObject.Load(13, &pk.dnatDone) - stateSourceObject.Load(14, &pk.PktType) - stateSourceObject.Load(15, &pk.NICID) - stateSourceObject.Load(16, &pk.RXChecksumValidated) - stateSourceObject.Load(17, &pk.NetworkPacketInfo) - stateSourceObject.Load(18, &pk.tuple) -} - -func (h *headerInfo) StateTypeName() string { - return "pkg/tcpip/stack.headerInfo" -} - -func (h *headerInfo) StateFields() []string { - return []string{ - "offset", - "length", - } -} - -func (h *headerInfo) beforeSave() {} - -// +checklocksignore -func (h *headerInfo) StateSave(stateSinkObject state.Sink) { - h.beforeSave() - stateSinkObject.Save(0, &h.offset) - stateSinkObject.Save(1, &h.length) -} - -func (h *headerInfo) afterLoad(context.Context) {} - -// +checklocksignore -func (h *headerInfo) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &h.offset) - stateSourceObject.Load(1, &h.length) -} - -func (d *PacketData) StateTypeName() string { - return "pkg/tcpip/stack.PacketData" -} - -func (d *PacketData) StateFields() []string { - return []string{ - "pk", - } -} - -func (d *PacketData) beforeSave() {} - -// +checklocksignore -func (d *PacketData) StateSave(stateSinkObject state.Sink) { - d.beforeSave() - stateSinkObject.Save(0, &d.pk) -} - -func (d *PacketData) afterLoad(context.Context) {} - -// +checklocksignore -func (d *PacketData) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &d.pk) -} - -func (pl *PacketBufferList) StateTypeName() string { - return "pkg/tcpip/stack.PacketBufferList" -} - -func (pl *PacketBufferList) StateFields() []string { - return []string{ - "pbs", - } -} - -func (pl *PacketBufferList) beforeSave() {} - -// +checklocksignore -func (pl *PacketBufferList) StateSave(stateSinkObject state.Sink) { - pl.beforeSave() - stateSinkObject.Save(0, &pl.pbs) -} - -func (pl *PacketBufferList) afterLoad(context.Context) {} - -// +checklocksignore -func (pl *PacketBufferList) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &pl.pbs) -} - -func (r *packetBufferRefs) StateTypeName() string { - return "pkg/tcpip/stack.packetBufferRefs" -} - -func (r *packetBufferRefs) StateFields() []string { - return []string{ - "refCount", - } -} - -func (r *packetBufferRefs) beforeSave() {} - -// +checklocksignore -func (r *packetBufferRefs) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.refCount) -} - -// +checklocksignore -func (r *packetBufferRefs) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.refCount) - stateSourceObject.AfterLoad(func() { r.afterLoad(ctx) }) -} - -func (p *pendingPacket) StateTypeName() string { - return "pkg/tcpip/stack.pendingPacket" -} - -func (p *pendingPacket) StateFields() []string { - return []string{ - "routeInfo", - "pkt", - } -} - -func (p *pendingPacket) beforeSave() {} - -// +checklocksignore -func (p *pendingPacket) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - stateSinkObject.Save(0, &p.routeInfo) - stateSinkObject.Save(1, &p.pkt) -} - -func (p *pendingPacket) afterLoad(context.Context) {} - -// +checklocksignore -func (p *pendingPacket) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.routeInfo) - stateSourceObject.Load(1, &p.pkt) -} - -func (p *packetsPendingLinkResolutionMu) StateTypeName() string { - return "pkg/tcpip/stack.packetsPendingLinkResolutionMu" -} - -func (p *packetsPendingLinkResolutionMu) StateFields() []string { - return []string{ - "packets", - "cancelChans", - } -} - -func (p *packetsPendingLinkResolutionMu) beforeSave() {} - -// +checklocksignore -func (p *packetsPendingLinkResolutionMu) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - stateSinkObject.Save(0, &p.packets) - stateSinkObject.Save(1, &p.cancelChans) -} - -func (p *packetsPendingLinkResolutionMu) afterLoad(context.Context) {} - -// +checklocksignore -func (p *packetsPendingLinkResolutionMu) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.packets) - stateSourceObject.Load(1, &p.cancelChans) -} - -func (f *packetsPendingLinkResolution) StateTypeName() string { - return "pkg/tcpip/stack.packetsPendingLinkResolution" -} - -func (f *packetsPendingLinkResolution) StateFields() []string { - return []string{ - "nic", - "mu", - } -} - -func (f *packetsPendingLinkResolution) beforeSave() {} - -// +checklocksignore -func (f *packetsPendingLinkResolution) StateSave(stateSinkObject state.Sink) { - f.beforeSave() - stateSinkObject.Save(0, &f.nic) - stateSinkObject.Save(1, &f.mu) -} - -func (f *packetsPendingLinkResolution) afterLoad(context.Context) {} - -// +checklocksignore -func (f *packetsPendingLinkResolution) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &f.nic) - stateSourceObject.Load(1, &f.mu) -} - -func (t *TransportEndpointID) StateTypeName() string { - return "pkg/tcpip/stack.TransportEndpointID" -} - -func (t *TransportEndpointID) StateFields() []string { - return []string{ - "LocalPort", - "LocalAddress", - "RemotePort", - "RemoteAddress", - } -} - -func (t *TransportEndpointID) beforeSave() {} - -// +checklocksignore -func (t *TransportEndpointID) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.LocalPort) - stateSinkObject.Save(1, &t.LocalAddress) - stateSinkObject.Save(2, &t.RemotePort) - stateSinkObject.Save(3, &t.RemoteAddress) -} - -func (t *TransportEndpointID) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TransportEndpointID) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.LocalPort) - stateSourceObject.Load(1, &t.LocalAddress) - stateSourceObject.Load(2, &t.RemotePort) - stateSourceObject.Load(3, &t.RemoteAddress) -} - -func (n *NetworkPacketInfo) StateTypeName() string { - return "pkg/tcpip/stack.NetworkPacketInfo" -} - -func (n *NetworkPacketInfo) StateFields() []string { - return []string{ - "LocalAddressBroadcast", - "IsForwardedPacket", - } -} - -func (n *NetworkPacketInfo) beforeSave() {} - -// +checklocksignore -func (n *NetworkPacketInfo) StateSave(stateSinkObject state.Sink) { - n.beforeSave() - stateSinkObject.Save(0, &n.LocalAddressBroadcast) - stateSinkObject.Save(1, &n.IsForwardedPacket) -} - -func (n *NetworkPacketInfo) afterLoad(context.Context) {} - -// +checklocksignore -func (n *NetworkPacketInfo) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &n.LocalAddressBroadcast) - stateSourceObject.Load(1, &n.IsForwardedPacket) -} - -func (lifetimes *AddressLifetimes) StateTypeName() string { - return "pkg/tcpip/stack.AddressLifetimes" -} - -func (lifetimes *AddressLifetimes) StateFields() []string { - return []string{ - "Deprecated", - "PreferredUntil", - "ValidUntil", - } -} - -func (lifetimes *AddressLifetimes) beforeSave() {} - -// +checklocksignore -func (lifetimes *AddressLifetimes) StateSave(stateSinkObject state.Sink) { - lifetimes.beforeSave() - stateSinkObject.Save(0, &lifetimes.Deprecated) - stateSinkObject.Save(1, &lifetimes.PreferredUntil) - stateSinkObject.Save(2, &lifetimes.ValidUntil) -} - -func (lifetimes *AddressLifetimes) afterLoad(context.Context) {} - -// +checklocksignore -func (lifetimes *AddressLifetimes) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &lifetimes.Deprecated) - stateSourceObject.Load(1, &lifetimes.PreferredUntil) - stateSourceObject.Load(2, &lifetimes.ValidUntil) -} - -func (u *UnicastSourceAndMulticastDestination) StateTypeName() string { - return "pkg/tcpip/stack.UnicastSourceAndMulticastDestination" -} - -func (u *UnicastSourceAndMulticastDestination) StateFields() []string { - return []string{ - "Source", - "Destination", - } -} - -func (u *UnicastSourceAndMulticastDestination) beforeSave() {} - -// +checklocksignore -func (u *UnicastSourceAndMulticastDestination) StateSave(stateSinkObject state.Sink) { - u.beforeSave() - stateSinkObject.Save(0, &u.Source) - stateSinkObject.Save(1, &u.Destination) -} - -func (u *UnicastSourceAndMulticastDestination) afterLoad(context.Context) {} - -// +checklocksignore -func (u *UnicastSourceAndMulticastDestination) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &u.Source) - stateSourceObject.Load(1, &u.Destination) -} - -func (c *DADConfigurations) StateTypeName() string { - return "pkg/tcpip/stack.DADConfigurations" -} - -func (c *DADConfigurations) StateFields() []string { - return []string{ - "DupAddrDetectTransmits", - "RetransmitTimer", - } -} - -func (c *DADConfigurations) beforeSave() {} - -// +checklocksignore -func (c *DADConfigurations) StateSave(stateSinkObject state.Sink) { - c.beforeSave() - stateSinkObject.Save(0, &c.DupAddrDetectTransmits) - stateSinkObject.Save(1, &c.RetransmitTimer) -} - -func (c *DADConfigurations) afterLoad(context.Context) {} - -// +checklocksignore -func (c *DADConfigurations) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &c.DupAddrDetectTransmits) - stateSourceObject.Load(1, &c.RetransmitTimer) -} - -func (g *GSOType) StateTypeName() string { - return "pkg/tcpip/stack.GSOType" -} - -func (g *GSOType) StateFields() []string { - return nil -} - -func (g *GSO) StateTypeName() string { - return "pkg/tcpip/stack.GSO" -} - -func (g *GSO) StateFields() []string { - return []string{ - "Type", - "NeedsCsum", - "CsumOffset", - "MSS", - "L3HdrLen", - "MaxSize", - } -} - -func (g *GSO) beforeSave() {} - -// +checklocksignore -func (g *GSO) StateSave(stateSinkObject state.Sink) { - g.beforeSave() - stateSinkObject.Save(0, &g.Type) - stateSinkObject.Save(1, &g.NeedsCsum) - stateSinkObject.Save(2, &g.CsumOffset) - stateSinkObject.Save(3, &g.MSS) - stateSinkObject.Save(4, &g.L3HdrLen) - stateSinkObject.Save(5, &g.MaxSize) -} - -func (g *GSO) afterLoad(context.Context) {} - -// +checklocksignore -func (g *GSO) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &g.Type) - stateSourceObject.Load(1, &g.NeedsCsum) - stateSourceObject.Load(2, &g.CsumOffset) - stateSourceObject.Load(3, &g.MSS) - stateSourceObject.Load(4, &g.L3HdrLen) - stateSourceObject.Load(5, &g.MaxSize) -} - -func (r *routeInfo) StateTypeName() string { - return "pkg/tcpip/stack.routeInfo" -} - -func (r *routeInfo) StateFields() []string { - return []string{ - "RemoteAddress", - "LocalAddress", - "LocalLinkAddress", - "NextHop", - "NetProto", - "Loop", - } -} - -func (r *routeInfo) beforeSave() {} - -// +checklocksignore -func (r *routeInfo) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.RemoteAddress) - stateSinkObject.Save(1, &r.LocalAddress) - stateSinkObject.Save(2, &r.LocalLinkAddress) - stateSinkObject.Save(3, &r.NextHop) - stateSinkObject.Save(4, &r.NetProto) - stateSinkObject.Save(5, &r.Loop) -} - -func (r *routeInfo) afterLoad(context.Context) {} - -// +checklocksignore -func (r *routeInfo) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.RemoteAddress) - stateSourceObject.Load(1, &r.LocalAddress) - stateSourceObject.Load(2, &r.LocalLinkAddress) - stateSourceObject.Load(3, &r.NextHop) - stateSourceObject.Load(4, &r.NetProto) - stateSourceObject.Load(5, &r.Loop) -} - -func (r *RouteInfo) StateTypeName() string { - return "pkg/tcpip/stack.RouteInfo" -} - -func (r *RouteInfo) StateFields() []string { - return []string{ - "routeInfo", - "RemoteLinkAddress", - } -} - -func (r *RouteInfo) beforeSave() {} - -// +checklocksignore -func (r *RouteInfo) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.routeInfo) - stateSinkObject.Save(1, &r.RemoteLinkAddress) -} - -func (r *RouteInfo) afterLoad(context.Context) {} - -// +checklocksignore -func (r *RouteInfo) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.routeInfo) - stateSourceObject.Load(1, &r.RemoteLinkAddress) -} - -func (t *transportProtocolState) StateTypeName() string { - return "pkg/tcpip/stack.transportProtocolState" -} - -func (t *transportProtocolState) StateFields() []string { - return []string{ - "proto", - } -} - -func (t *transportProtocolState) beforeSave() {} - -// +checklocksignore -func (t *transportProtocolState) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.proto) -} - -func (t *transportProtocolState) afterLoad(context.Context) {} - -// +checklocksignore -func (t *transportProtocolState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.proto) -} - -func (s *Stack) StateTypeName() string { - return "pkg/tcpip/stack.Stack" -} - -func (s *Stack) StateFields() []string { - return []string{ - "transportProtocols", - "networkProtocols", - "rawFactory", - "packetEndpointWriteSupported", - "demux", - "stats", - "routeTable", - "nics", - "defaultForwardingEnabled", - "nicIDGen", - "cleanupEndpoints", - "PortManager", - "clock", - "handleLocal", - "restoredEndpoints", - "resumableEndpoints", - "icmpRateLimiter", - "seed", - "nudConfigs", - "nudDisp", - "sendBufferSize", - "receiveBufferSize", - "tcpInvalidRateLimit", - "tsOffsetSecret", - } -} - -func (s *Stack) beforeSave() {} - -// +checklocksignore -func (s *Stack) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.transportProtocols) - stateSinkObject.Save(1, &s.networkProtocols) - stateSinkObject.Save(2, &s.rawFactory) - stateSinkObject.Save(3, &s.packetEndpointWriteSupported) - stateSinkObject.Save(4, &s.demux) - stateSinkObject.Save(5, &s.stats) - stateSinkObject.Save(6, &s.routeTable) - stateSinkObject.Save(7, &s.nics) - stateSinkObject.Save(8, &s.defaultForwardingEnabled) - stateSinkObject.Save(9, &s.nicIDGen) - stateSinkObject.Save(10, &s.cleanupEndpoints) - stateSinkObject.Save(11, &s.PortManager) - stateSinkObject.Save(12, &s.clock) - stateSinkObject.Save(13, &s.handleLocal) - stateSinkObject.Save(14, &s.restoredEndpoints) - stateSinkObject.Save(15, &s.resumableEndpoints) - stateSinkObject.Save(16, &s.icmpRateLimiter) - stateSinkObject.Save(17, &s.seed) - stateSinkObject.Save(18, &s.nudConfigs) - stateSinkObject.Save(19, &s.nudDisp) - stateSinkObject.Save(20, &s.sendBufferSize) - stateSinkObject.Save(21, &s.receiveBufferSize) - stateSinkObject.Save(22, &s.tcpInvalidRateLimit) - stateSinkObject.Save(23, &s.tsOffsetSecret) -} - -func (s *Stack) afterLoad(context.Context) {} - -// +checklocksignore -func (s *Stack) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.transportProtocols) - stateSourceObject.Load(1, &s.networkProtocols) - stateSourceObject.Load(2, &s.rawFactory) - stateSourceObject.Load(3, &s.packetEndpointWriteSupported) - stateSourceObject.Load(4, &s.demux) - stateSourceObject.Load(5, &s.stats) - stateSourceObject.Load(6, &s.routeTable) - stateSourceObject.Load(7, &s.nics) - stateSourceObject.Load(8, &s.defaultForwardingEnabled) - stateSourceObject.Load(9, &s.nicIDGen) - stateSourceObject.Load(10, &s.cleanupEndpoints) - stateSourceObject.Load(11, &s.PortManager) - stateSourceObject.Load(12, &s.clock) - stateSourceObject.Load(13, &s.handleLocal) - stateSourceObject.Load(14, &s.restoredEndpoints) - stateSourceObject.Load(15, &s.resumableEndpoints) - stateSourceObject.Load(16, &s.icmpRateLimiter) - stateSourceObject.Load(17, &s.seed) - stateSourceObject.Load(18, &s.nudConfigs) - stateSourceObject.Load(19, &s.nudDisp) - stateSourceObject.Load(20, &s.sendBufferSize) - stateSourceObject.Load(21, &s.receiveBufferSize) - stateSourceObject.Load(22, &s.tcpInvalidRateLimit) - stateSourceObject.Load(23, &s.tsOffsetSecret) -} - -func (t *TransportEndpointInfo) StateTypeName() string { - return "pkg/tcpip/stack.TransportEndpointInfo" -} - -func (t *TransportEndpointInfo) StateFields() []string { - return []string{ - "NetProto", - "TransProto", - "ID", - "BindNICID", - "BindAddr", - "RegisterNICID", - } -} - -func (t *TransportEndpointInfo) beforeSave() {} - -// +checklocksignore -func (t *TransportEndpointInfo) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.NetProto) - stateSinkObject.Save(1, &t.TransProto) - stateSinkObject.Save(2, &t.ID) - stateSinkObject.Save(3, &t.BindNICID) - stateSinkObject.Save(4, &t.BindAddr) - stateSinkObject.Save(5, &t.RegisterNICID) -} - -func (t *TransportEndpointInfo) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TransportEndpointInfo) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.NetProto) - stateSourceObject.Load(1, &t.TransProto) - stateSourceObject.Load(2, &t.ID) - stateSourceObject.Load(3, &t.BindNICID) - stateSourceObject.Load(4, &t.BindAddr) - stateSourceObject.Load(5, &t.RegisterNICID) -} - -func (t *TCPCubicState) StateTypeName() string { - return "pkg/tcpip/stack.TCPCubicState" -} - -func (t *TCPCubicState) StateFields() []string { - return []string{ - "WLastMax", - "WMax", - "T", - "TimeSinceLastCongestion", - "C", - "K", - "Beta", - "WC", - "WEst", - "EndSeq", - "CurrRTT", - "LastRTT", - "SampleCount", - "LastAck", - "RoundStart", - } -} - -func (t *TCPCubicState) beforeSave() {} - -// +checklocksignore -func (t *TCPCubicState) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.WLastMax) - stateSinkObject.Save(1, &t.WMax) - stateSinkObject.Save(2, &t.T) - stateSinkObject.Save(3, &t.TimeSinceLastCongestion) - stateSinkObject.Save(4, &t.C) - stateSinkObject.Save(5, &t.K) - stateSinkObject.Save(6, &t.Beta) - stateSinkObject.Save(7, &t.WC) - stateSinkObject.Save(8, &t.WEst) - stateSinkObject.Save(9, &t.EndSeq) - stateSinkObject.Save(10, &t.CurrRTT) - stateSinkObject.Save(11, &t.LastRTT) - stateSinkObject.Save(12, &t.SampleCount) - stateSinkObject.Save(13, &t.LastAck) - stateSinkObject.Save(14, &t.RoundStart) -} - -func (t *TCPCubicState) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPCubicState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.WLastMax) - stateSourceObject.Load(1, &t.WMax) - stateSourceObject.Load(2, &t.T) - stateSourceObject.Load(3, &t.TimeSinceLastCongestion) - stateSourceObject.Load(4, &t.C) - stateSourceObject.Load(5, &t.K) - stateSourceObject.Load(6, &t.Beta) - stateSourceObject.Load(7, &t.WC) - stateSourceObject.Load(8, &t.WEst) - stateSourceObject.Load(9, &t.EndSeq) - stateSourceObject.Load(10, &t.CurrRTT) - stateSourceObject.Load(11, &t.LastRTT) - stateSourceObject.Load(12, &t.SampleCount) - stateSourceObject.Load(13, &t.LastAck) - stateSourceObject.Load(14, &t.RoundStart) -} - -func (t *TCPRACKState) StateTypeName() string { - return "pkg/tcpip/stack.TCPRACKState" -} - -func (t *TCPRACKState) StateFields() []string { - return []string{ - "XmitTime", - "EndSequence", - "FACK", - "RTT", - "Reord", - "DSACKSeen", - "ReoWnd", - "ReoWndIncr", - "ReoWndPersist", - "RTTSeq", - } -} - -func (t *TCPRACKState) beforeSave() {} - -// +checklocksignore -func (t *TCPRACKState) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.XmitTime) - stateSinkObject.Save(1, &t.EndSequence) - stateSinkObject.Save(2, &t.FACK) - stateSinkObject.Save(3, &t.RTT) - stateSinkObject.Save(4, &t.Reord) - stateSinkObject.Save(5, &t.DSACKSeen) - stateSinkObject.Save(6, &t.ReoWnd) - stateSinkObject.Save(7, &t.ReoWndIncr) - stateSinkObject.Save(8, &t.ReoWndPersist) - stateSinkObject.Save(9, &t.RTTSeq) -} - -func (t *TCPRACKState) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPRACKState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.XmitTime) - stateSourceObject.Load(1, &t.EndSequence) - stateSourceObject.Load(2, &t.FACK) - stateSourceObject.Load(3, &t.RTT) - stateSourceObject.Load(4, &t.Reord) - stateSourceObject.Load(5, &t.DSACKSeen) - stateSourceObject.Load(6, &t.ReoWnd) - stateSourceObject.Load(7, &t.ReoWndIncr) - stateSourceObject.Load(8, &t.ReoWndPersist) - stateSourceObject.Load(9, &t.RTTSeq) -} - -func (t *TCPEndpointID) StateTypeName() string { - return "pkg/tcpip/stack.TCPEndpointID" -} - -func (t *TCPEndpointID) StateFields() []string { - return []string{ - "LocalPort", - "LocalAddress", - "RemotePort", - "RemoteAddress", - } -} - -func (t *TCPEndpointID) beforeSave() {} - -// +checklocksignore -func (t *TCPEndpointID) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.LocalPort) - stateSinkObject.Save(1, &t.LocalAddress) - stateSinkObject.Save(2, &t.RemotePort) - stateSinkObject.Save(3, &t.RemoteAddress) -} - -func (t *TCPEndpointID) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPEndpointID) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.LocalPort) - stateSourceObject.Load(1, &t.LocalAddress) - stateSourceObject.Load(2, &t.RemotePort) - stateSourceObject.Load(3, &t.RemoteAddress) -} - -func (t *TCPFastRecoveryState) StateTypeName() string { - return "pkg/tcpip/stack.TCPFastRecoveryState" -} - -func (t *TCPFastRecoveryState) StateFields() []string { - return []string{ - "Active", - "First", - "Last", - "MaxCwnd", - "HighRxt", - "RescueRxt", - } -} - -func (t *TCPFastRecoveryState) beforeSave() {} - -// +checklocksignore -func (t *TCPFastRecoveryState) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.Active) - stateSinkObject.Save(1, &t.First) - stateSinkObject.Save(2, &t.Last) - stateSinkObject.Save(3, &t.MaxCwnd) - stateSinkObject.Save(4, &t.HighRxt) - stateSinkObject.Save(5, &t.RescueRxt) -} - -func (t *TCPFastRecoveryState) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPFastRecoveryState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.Active) - stateSourceObject.Load(1, &t.First) - stateSourceObject.Load(2, &t.Last) - stateSourceObject.Load(3, &t.MaxCwnd) - stateSourceObject.Load(4, &t.HighRxt) - stateSourceObject.Load(5, &t.RescueRxt) -} - -func (t *TCPReceiverState) StateTypeName() string { - return "pkg/tcpip/stack.TCPReceiverState" -} - -func (t *TCPReceiverState) StateFields() []string { - return []string{ - "RcvNxt", - "RcvAcc", - "RcvWndScale", - "PendingBufUsed", - } -} - -func (t *TCPReceiverState) beforeSave() {} - -// +checklocksignore -func (t *TCPReceiverState) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.RcvNxt) - stateSinkObject.Save(1, &t.RcvAcc) - stateSinkObject.Save(2, &t.RcvWndScale) - stateSinkObject.Save(3, &t.PendingBufUsed) -} - -func (t *TCPReceiverState) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPReceiverState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.RcvNxt) - stateSourceObject.Load(1, &t.RcvAcc) - stateSourceObject.Load(2, &t.RcvWndScale) - stateSourceObject.Load(3, &t.PendingBufUsed) -} - -func (t *TCPRTTState) StateTypeName() string { - return "pkg/tcpip/stack.TCPRTTState" -} - -func (t *TCPRTTState) StateFields() []string { - return []string{ - "SRTT", - "RTTVar", - "SRTTInited", - } -} - -func (t *TCPRTTState) beforeSave() {} - -// +checklocksignore -func (t *TCPRTTState) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.SRTT) - stateSinkObject.Save(1, &t.RTTVar) - stateSinkObject.Save(2, &t.SRTTInited) -} - -func (t *TCPRTTState) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPRTTState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.SRTT) - stateSourceObject.Load(1, &t.RTTVar) - stateSourceObject.Load(2, &t.SRTTInited) -} - -func (t *TCPSenderState) StateTypeName() string { - return "pkg/tcpip/stack.TCPSenderState" -} - -func (t *TCPSenderState) StateFields() []string { - return []string{ - "LastSendTime", - "DupAckCount", - "SndCwnd", - "Ssthresh", - "SndCAAckCount", - "Outstanding", - "SackedOut", - "SndWnd", - "SndUna", - "SndNxt", - "RTTMeasureSeqNum", - "RTTMeasureTime", - "Closed", - "RTO", - "RTTState", - "MaxPayloadSize", - "SndWndScale", - "MaxSentAck", - "FastRecovery", - "Cubic", - "RACKState", - "RetransmitTS", - "SpuriousRecovery", - } -} - -func (t *TCPSenderState) beforeSave() {} - -// +checklocksignore -func (t *TCPSenderState) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.LastSendTime) - stateSinkObject.Save(1, &t.DupAckCount) - stateSinkObject.Save(2, &t.SndCwnd) - stateSinkObject.Save(3, &t.Ssthresh) - stateSinkObject.Save(4, &t.SndCAAckCount) - stateSinkObject.Save(5, &t.Outstanding) - stateSinkObject.Save(6, &t.SackedOut) - stateSinkObject.Save(7, &t.SndWnd) - stateSinkObject.Save(8, &t.SndUna) - stateSinkObject.Save(9, &t.SndNxt) - stateSinkObject.Save(10, &t.RTTMeasureSeqNum) - stateSinkObject.Save(11, &t.RTTMeasureTime) - stateSinkObject.Save(12, &t.Closed) - stateSinkObject.Save(13, &t.RTO) - stateSinkObject.Save(14, &t.RTTState) - stateSinkObject.Save(15, &t.MaxPayloadSize) - stateSinkObject.Save(16, &t.SndWndScale) - stateSinkObject.Save(17, &t.MaxSentAck) - stateSinkObject.Save(18, &t.FastRecovery) - stateSinkObject.Save(19, &t.Cubic) - stateSinkObject.Save(20, &t.RACKState) - stateSinkObject.Save(21, &t.RetransmitTS) - stateSinkObject.Save(22, &t.SpuriousRecovery) -} - -func (t *TCPSenderState) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPSenderState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.LastSendTime) - stateSourceObject.Load(1, &t.DupAckCount) - stateSourceObject.Load(2, &t.SndCwnd) - stateSourceObject.Load(3, &t.Ssthresh) - stateSourceObject.Load(4, &t.SndCAAckCount) - stateSourceObject.Load(5, &t.Outstanding) - stateSourceObject.Load(6, &t.SackedOut) - stateSourceObject.Load(7, &t.SndWnd) - stateSourceObject.Load(8, &t.SndUna) - stateSourceObject.Load(9, &t.SndNxt) - stateSourceObject.Load(10, &t.RTTMeasureSeqNum) - stateSourceObject.Load(11, &t.RTTMeasureTime) - stateSourceObject.Load(12, &t.Closed) - stateSourceObject.Load(13, &t.RTO) - stateSourceObject.Load(14, &t.RTTState) - stateSourceObject.Load(15, &t.MaxPayloadSize) - stateSourceObject.Load(16, &t.SndWndScale) - stateSourceObject.Load(17, &t.MaxSentAck) - stateSourceObject.Load(18, &t.FastRecovery) - stateSourceObject.Load(19, &t.Cubic) - stateSourceObject.Load(20, &t.RACKState) - stateSourceObject.Load(21, &t.RetransmitTS) - stateSourceObject.Load(22, &t.SpuriousRecovery) -} - -func (t *TCPSACKInfo) StateTypeName() string { - return "pkg/tcpip/stack.TCPSACKInfo" -} - -func (t *TCPSACKInfo) StateFields() []string { - return []string{ - "Blocks", - "ReceivedBlocks", - "MaxSACKED", - } -} - -func (t *TCPSACKInfo) beforeSave() {} - -// +checklocksignore -func (t *TCPSACKInfo) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.Blocks) - stateSinkObject.Save(1, &t.ReceivedBlocks) - stateSinkObject.Save(2, &t.MaxSACKED) -} - -func (t *TCPSACKInfo) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPSACKInfo) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.Blocks) - stateSourceObject.Load(1, &t.ReceivedBlocks) - stateSourceObject.Load(2, &t.MaxSACKED) -} - -func (r *RcvBufAutoTuneParams) StateTypeName() string { - return "pkg/tcpip/stack.RcvBufAutoTuneParams" -} - -func (r *RcvBufAutoTuneParams) StateFields() []string { - return []string{ - "MeasureTime", - "CopiedBytes", - "PrevCopiedBytes", - "RcvBufSize", - "RTT", - "RTTVar", - "RTTMeasureSeqNumber", - "RTTMeasureTime", - "Disabled", - } -} - -func (r *RcvBufAutoTuneParams) beforeSave() {} - -// +checklocksignore -func (r *RcvBufAutoTuneParams) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.MeasureTime) - stateSinkObject.Save(1, &r.CopiedBytes) - stateSinkObject.Save(2, &r.PrevCopiedBytes) - stateSinkObject.Save(3, &r.RcvBufSize) - stateSinkObject.Save(4, &r.RTT) - stateSinkObject.Save(5, &r.RTTVar) - stateSinkObject.Save(6, &r.RTTMeasureSeqNumber) - stateSinkObject.Save(7, &r.RTTMeasureTime) - stateSinkObject.Save(8, &r.Disabled) -} - -func (r *RcvBufAutoTuneParams) afterLoad(context.Context) {} - -// +checklocksignore -func (r *RcvBufAutoTuneParams) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.MeasureTime) - stateSourceObject.Load(1, &r.CopiedBytes) - stateSourceObject.Load(2, &r.PrevCopiedBytes) - stateSourceObject.Load(3, &r.RcvBufSize) - stateSourceObject.Load(4, &r.RTT) - stateSourceObject.Load(5, &r.RTTVar) - stateSourceObject.Load(6, &r.RTTMeasureSeqNumber) - stateSourceObject.Load(7, &r.RTTMeasureTime) - stateSourceObject.Load(8, &r.Disabled) -} - -func (t *TCPRcvBufState) StateTypeName() string { - return "pkg/tcpip/stack.TCPRcvBufState" -} - -func (t *TCPRcvBufState) StateFields() []string { - return []string{ - "RcvBufUsed", - "RcvAutoParams", - "RcvClosed", - } -} - -func (t *TCPRcvBufState) beforeSave() {} - -// +checklocksignore -func (t *TCPRcvBufState) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.RcvBufUsed) - stateSinkObject.Save(1, &t.RcvAutoParams) - stateSinkObject.Save(2, &t.RcvClosed) -} - -func (t *TCPRcvBufState) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPRcvBufState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.RcvBufUsed) - stateSourceObject.Load(1, &t.RcvAutoParams) - stateSourceObject.Load(2, &t.RcvClosed) -} - -func (t *TCPSndBufState) StateTypeName() string { - return "pkg/tcpip/stack.TCPSndBufState" -} - -func (t *TCPSndBufState) StateFields() []string { - return []string{ - "SndBufSize", - "SndBufUsed", - "SndClosed", - "PacketTooBigCount", - "SndMTU", - "AutoTuneSndBufDisabled", - } -} - -func (t *TCPSndBufState) beforeSave() {} - -// +checklocksignore -func (t *TCPSndBufState) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.SndBufSize) - stateSinkObject.Save(1, &t.SndBufUsed) - stateSinkObject.Save(2, &t.SndClosed) - stateSinkObject.Save(3, &t.PacketTooBigCount) - stateSinkObject.Save(4, &t.SndMTU) - stateSinkObject.Save(5, &t.AutoTuneSndBufDisabled) -} - -func (t *TCPSndBufState) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPSndBufState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.SndBufSize) - stateSourceObject.Load(1, &t.SndBufUsed) - stateSourceObject.Load(2, &t.SndClosed) - stateSourceObject.Load(3, &t.PacketTooBigCount) - stateSourceObject.Load(4, &t.SndMTU) - stateSourceObject.Load(5, &t.AutoTuneSndBufDisabled) -} - -func (t *TCPEndpointStateInner) StateTypeName() string { - return "pkg/tcpip/stack.TCPEndpointStateInner" -} - -func (t *TCPEndpointStateInner) StateFields() []string { - return []string{ - "TSOffset", - "SACKPermitted", - "SendTSOk", - "RecentTS", - } -} - -func (t *TCPEndpointStateInner) beforeSave() {} - -// +checklocksignore -func (t *TCPEndpointStateInner) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.TSOffset) - stateSinkObject.Save(1, &t.SACKPermitted) - stateSinkObject.Save(2, &t.SendTSOk) - stateSinkObject.Save(3, &t.RecentTS) -} - -func (t *TCPEndpointStateInner) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPEndpointStateInner) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.TSOffset) - stateSourceObject.Load(1, &t.SACKPermitted) - stateSourceObject.Load(2, &t.SendTSOk) - stateSourceObject.Load(3, &t.RecentTS) -} - -func (t *TCPEndpointState) StateTypeName() string { - return "pkg/tcpip/stack.TCPEndpointState" -} - -func (t *TCPEndpointState) StateFields() []string { - return []string{ - "TCPEndpointStateInner", - "ID", - "SegTime", - "RcvBufState", - "SndBufState", - "SACK", - "Receiver", - "Sender", - } -} - -func (t *TCPEndpointState) beforeSave() {} - -// +checklocksignore -func (t *TCPEndpointState) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.TCPEndpointStateInner) - stateSinkObject.Save(1, &t.ID) - stateSinkObject.Save(2, &t.SegTime) - stateSinkObject.Save(3, &t.RcvBufState) - stateSinkObject.Save(4, &t.SndBufState) - stateSinkObject.Save(5, &t.SACK) - stateSinkObject.Save(6, &t.Receiver) - stateSinkObject.Save(7, &t.Sender) -} - -func (t *TCPEndpointState) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPEndpointState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.TCPEndpointStateInner) - stateSourceObject.Load(1, &t.ID) - stateSourceObject.Load(2, &t.SegTime) - stateSourceObject.Load(3, &t.RcvBufState) - stateSourceObject.Load(4, &t.SndBufState) - stateSourceObject.Load(5, &t.SACK) - stateSourceObject.Load(6, &t.Receiver) - stateSourceObject.Load(7, &t.Sender) -} - -func (p *protocolIDs) StateTypeName() string { - return "pkg/tcpip/stack.protocolIDs" -} - -func (p *protocolIDs) StateFields() []string { - return []string{ - "network", - "transport", - } -} - -func (p *protocolIDs) beforeSave() {} - -// +checklocksignore -func (p *protocolIDs) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - stateSinkObject.Save(0, &p.network) - stateSinkObject.Save(1, &p.transport) -} - -func (p *protocolIDs) afterLoad(context.Context) {} - -// +checklocksignore -func (p *protocolIDs) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.network) - stateSourceObject.Load(1, &p.transport) -} - -func (eps *transportEndpoints) StateTypeName() string { - return "pkg/tcpip/stack.transportEndpoints" -} - -func (eps *transportEndpoints) StateFields() []string { - return []string{ - "endpoints", - "rawEndpoints", - } -} - -func (eps *transportEndpoints) beforeSave() {} - -// +checklocksignore -func (eps *transportEndpoints) StateSave(stateSinkObject state.Sink) { - eps.beforeSave() - stateSinkObject.Save(0, &eps.endpoints) - stateSinkObject.Save(1, &eps.rawEndpoints) -} - -func (eps *transportEndpoints) afterLoad(context.Context) {} - -// +checklocksignore -func (eps *transportEndpoints) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &eps.endpoints) - stateSourceObject.Load(1, &eps.rawEndpoints) -} - -func (epsByNIC *endpointsByNIC) StateTypeName() string { - return "pkg/tcpip/stack.endpointsByNIC" -} - -func (epsByNIC *endpointsByNIC) StateFields() []string { - return []string{ - "seed", - "endpoints", - } -} - -func (epsByNIC *endpointsByNIC) beforeSave() {} - -// +checklocksignore -func (epsByNIC *endpointsByNIC) StateSave(stateSinkObject state.Sink) { - epsByNIC.beforeSave() - stateSinkObject.Save(0, &epsByNIC.seed) - stateSinkObject.Save(1, &epsByNIC.endpoints) -} - -func (epsByNIC *endpointsByNIC) afterLoad(context.Context) {} - -// +checklocksignore -func (epsByNIC *endpointsByNIC) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &epsByNIC.seed) - stateSourceObject.Load(1, &epsByNIC.endpoints) -} - -func (d *transportDemuxer) StateTypeName() string { - return "pkg/tcpip/stack.transportDemuxer" -} - -func (d *transportDemuxer) StateFields() []string { - return []string{ - "stack", - "protocol", - "queuedProtocols", - } -} - -func (d *transportDemuxer) beforeSave() {} - -// +checklocksignore -func (d *transportDemuxer) StateSave(stateSinkObject state.Sink) { - d.beforeSave() - stateSinkObject.Save(0, &d.stack) - stateSinkObject.Save(1, &d.protocol) - stateSinkObject.Save(2, &d.queuedProtocols) -} - -func (d *transportDemuxer) afterLoad(context.Context) {} - -// +checklocksignore -func (d *transportDemuxer) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &d.stack) - stateSourceObject.Load(1, &d.protocol) - stateSourceObject.Load(2, &d.queuedProtocols) -} - -func (ep *multiPortEndpoint) StateTypeName() string { - return "pkg/tcpip/stack.multiPortEndpoint" -} - -func (ep *multiPortEndpoint) StateFields() []string { - return []string{ - "demux", - "netProto", - "transProto", - "flags", - "endpoints", - } -} - -func (ep *multiPortEndpoint) beforeSave() {} - -// +checklocksignore -func (ep *multiPortEndpoint) StateSave(stateSinkObject state.Sink) { - ep.beforeSave() - stateSinkObject.Save(0, &ep.demux) - stateSinkObject.Save(1, &ep.netProto) - stateSinkObject.Save(2, &ep.transProto) - stateSinkObject.Save(3, &ep.flags) - stateSinkObject.Save(4, &ep.endpoints) -} - -func (ep *multiPortEndpoint) afterLoad(context.Context) {} - -// +checklocksignore -func (ep *multiPortEndpoint) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &ep.demux) - stateSourceObject.Load(1, &ep.netProto) - stateSourceObject.Load(2, &ep.transProto) - stateSourceObject.Load(3, &ep.flags) - stateSourceObject.Load(4, &ep.endpoints) -} - -func (l *tupleList) StateTypeName() string { - return "pkg/tcpip/stack.tupleList" -} - -func (l *tupleList) StateFields() []string { - return []string{ - "head", - "tail", - } -} - -func (l *tupleList) beforeSave() {} - -// +checklocksignore -func (l *tupleList) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.head) - stateSinkObject.Save(1, &l.tail) -} - -func (l *tupleList) afterLoad(context.Context) {} - -// +checklocksignore -func (l *tupleList) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.head) - stateSourceObject.Load(1, &l.tail) -} - -func (e *tupleEntry) StateTypeName() string { - return "pkg/tcpip/stack.tupleEntry" -} - -func (e *tupleEntry) StateFields() []string { - return []string{ - "next", - "prev", - } -} - -func (e *tupleEntry) beforeSave() {} - -// +checklocksignore -func (e *tupleEntry) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.next) - stateSinkObject.Save(1, &e.prev) -} - -func (e *tupleEntry) afterLoad(context.Context) {} - -// +checklocksignore -func (e *tupleEntry) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.next) - stateSourceObject.Load(1, &e.prev) -} - -func init() { - state.Register((*addressStateRefs)(nil)) - state.Register((*AddressableEndpointState)(nil)) - state.Register((*AddressableEndpointStateOptions)(nil)) - state.Register((*addressState)(nil)) - state.Register((*bridgePort)(nil)) - state.Register((*BridgeEndpoint)(nil)) - state.Register((*tuple)(nil)) - state.Register((*tupleID)(nil)) - state.Register((*conn)(nil)) - state.Register((*ConnTrack)(nil)) - state.Register((*bucket)(nil)) - state.Register((*ICMPRateLimiter)(nil)) - state.Register((*AcceptTarget)(nil)) - state.Register((*DropTarget)(nil)) - state.Register((*RejectIPv4Target)(nil)) - state.Register((*RejectIPv6Target)(nil)) - state.Register((*ErrorTarget)(nil)) - state.Register((*UserChainTarget)(nil)) - state.Register((*ReturnTarget)(nil)) - state.Register((*DNATTarget)(nil)) - state.Register((*RedirectTarget)(nil)) - state.Register((*SNATTarget)(nil)) - state.Register((*MasqueradeTarget)(nil)) - state.Register((*IPTables)(nil)) - state.Register((*Table)(nil)) - state.Register((*Rule)(nil)) - state.Register((*IPHeaderFilter)(nil)) - state.Register((*dynamicCacheEntry)(nil)) - state.Register((*neighborCacheMu)(nil)) - state.Register((*neighborCache)(nil)) - state.Register((*neighborEntryList)(nil)) - state.Register((*neighborEntryEntry)(nil)) - state.Register((*linkResolver)(nil)) - state.Register((*nic)(nil)) - state.Register((*packetEndpointList)(nil)) - state.Register((*delegatingQueueingDiscipline)(nil)) - state.Register((*sharedStats)(nil)) - state.Register((*multiCounterNICPacketStats)(nil)) - state.Register((*multiCounterNICNeighborStats)(nil)) - state.Register((*multiCounterNICStats)(nil)) - state.Register((*NUDConfigurations)(nil)) - state.Register((*nudStateMu)(nil)) - state.Register((*NUDState)(nil)) - state.Register((*PacketBuffer)(nil)) - state.Register((*headerInfo)(nil)) - state.Register((*PacketData)(nil)) - state.Register((*PacketBufferList)(nil)) - state.Register((*packetBufferRefs)(nil)) - state.Register((*pendingPacket)(nil)) - state.Register((*packetsPendingLinkResolutionMu)(nil)) - state.Register((*packetsPendingLinkResolution)(nil)) - state.Register((*TransportEndpointID)(nil)) - state.Register((*NetworkPacketInfo)(nil)) - state.Register((*AddressLifetimes)(nil)) - state.Register((*UnicastSourceAndMulticastDestination)(nil)) - state.Register((*DADConfigurations)(nil)) - state.Register((*GSOType)(nil)) - state.Register((*GSO)(nil)) - state.Register((*routeInfo)(nil)) - state.Register((*RouteInfo)(nil)) - state.Register((*transportProtocolState)(nil)) - state.Register((*Stack)(nil)) - state.Register((*TransportEndpointInfo)(nil)) - state.Register((*TCPCubicState)(nil)) - state.Register((*TCPRACKState)(nil)) - state.Register((*TCPEndpointID)(nil)) - state.Register((*TCPFastRecoveryState)(nil)) - state.Register((*TCPReceiverState)(nil)) - state.Register((*TCPRTTState)(nil)) - state.Register((*TCPSenderState)(nil)) - state.Register((*TCPSACKInfo)(nil)) - state.Register((*RcvBufAutoTuneParams)(nil)) - state.Register((*TCPRcvBufState)(nil)) - state.Register((*TCPSndBufState)(nil)) - state.Register((*TCPEndpointStateInner)(nil)) - state.Register((*TCPEndpointState)(nil)) - state.Register((*protocolIDs)(nil)) - state.Register((*transportEndpoints)(nil)) - state.Register((*endpointsByNIC)(nil)) - state.Register((*transportDemuxer)(nil)) - state.Register((*multiPortEndpoint)(nil)) - state.Register((*tupleList)(nil)) - state.Register((*tupleEntry)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/stack_unsafe_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/stack_unsafe_state_autogen.go deleted file mode 100644 index 758ab3457f..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/stack_unsafe_state_autogen.go +++ /dev/null @@ -1,3 +0,0 @@ -// automatically generated by stateify. - -package stack diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/state_conn_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/state_conn_mutex.go deleted file mode 100644 index 6f9075b509..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/state_conn_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type stateConnRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var stateConnlockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type stateConnlockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *stateConnRWMutex) Lock() { - locking.AddGLock(stateConnprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *stateConnRWMutex) NestedLock(i stateConnlockNameIndex) { - locking.AddGLock(stateConnprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *stateConnRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(stateConnprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *stateConnRWMutex) NestedUnlock(i stateConnlockNameIndex) { - m.mu.Unlock() - locking.DelGLock(stateConnprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *stateConnRWMutex) RLock() { - locking.AddGLock(stateConnprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *stateConnRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(stateConnprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *stateConnRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *stateConnRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *stateConnRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var stateConnprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func stateConninitLockNames() {} - -func init() { - stateConninitLockNames() - stateConnprefixIndex = locking.NewMutexClass(reflect.TypeOf(stateConnRWMutex{}), stateConnlockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/tcp.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/tcp.go deleted file mode 100644 index f5273405ec..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/tcp.go +++ /dev/null @@ -1,494 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "context" - "time" - - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/internal/tcp" - "gvisor.dev/gvisor/pkg/tcpip/seqnum" -) - -// contextID is this package's type for context.Context.Value keys. -type contextID int - -const ( - // CtxRestoreStack is a Context.Value key for the stack to be used in restore. - CtxRestoreStack contextID = iota -) - -// RestoreStackFromContext returns the stack to be used during restore. -func RestoreStackFromContext(ctx context.Context) *Stack { - return ctx.Value(CtxRestoreStack).(*Stack) -} - -// TCPProbeFunc is the expected function type for a TCP probe function to be -// passed to stack.AddTCPProbe. -type TCPProbeFunc func(s *TCPEndpointState) - -// TCPCubicState is used to hold a copy of the internal cubic state when the -// TCPProbeFunc is invoked. -// -// +stateify savable -type TCPCubicState struct { - // WLastMax is the previous wMax value. - WLastMax float64 - - // WMax is the value of the congestion window at the time of the last - // congestion event. - WMax float64 - - // T is the time when the current congestion avoidance was entered. - T tcpip.MonotonicTime - - // TimeSinceLastCongestion denotes the time since the current - // congestion avoidance was entered. - TimeSinceLastCongestion time.Duration - - // C is the cubic constant as specified in RFC8312, page 11. - C float64 - - // K is the time period (in seconds) that the above function takes to - // increase the current window size to WMax if there are no further - // congestion events and is calculated using the following equation: - // - // K = cubic_root(WMax*(1-beta_cubic)/C) (Eq. 2, page 5) - K float64 - - // Beta is the CUBIC multiplication decrease factor. That is, when a - // congestion event is detected, CUBIC reduces its cwnd to - // WC(0)=WMax*beta_cubic. - Beta float64 - - // WC is window computed by CUBIC at time TimeSinceLastCongestion. It's - // calculated using the formula: - // - // WC(TimeSinceLastCongestion) = C*(t-K)^3 + WMax (Eq. 1) - WC float64 - - // WEst is the window computed by CUBIC at time - // TimeSinceLastCongestion+RTT i.e WC(TimeSinceLastCongestion+RTT). - WEst float64 - - // EndSeq is the sequence number that, when cumulatively ACK'd, ends the - // HyStart round. - EndSeq seqnum.Value - - // CurrRTT is the minimum round-trip time from the current round. - CurrRTT time.Duration - - // LastRTT is the minimum round-trip time from the previous round. - LastRTT time.Duration - - // SampleCount is the number of samples from the current round. - SampleCount uint - - // LastAck is the time we received the most recent ACK (or start of round if - // more recent). - LastAck tcpip.MonotonicTime - - // RoundStart is the time we started the most recent HyStart round. - RoundStart tcpip.MonotonicTime -} - -// TCPRACKState is used to hold a copy of the internal RACK state when the -// TCPProbeFunc is invoked. -// -// +stateify savable -type TCPRACKState struct { - // XmitTime is the transmission timestamp of the most recent - // acknowledged segment. - XmitTime tcpip.MonotonicTime - - // EndSequence is the ending TCP sequence number of the most recent - // acknowledged segment. - EndSequence seqnum.Value - - // FACK is the highest selectively or cumulatively acknowledged - // sequence. - FACK seqnum.Value - - // RTT is the round trip time of the most recently delivered packet on - // the connection (either cumulatively acknowledged or selectively - // acknowledged) that was not marked invalid as a possible spurious - // retransmission. - RTT time.Duration - - // Reord is true iff reordering has been detected on this connection. - Reord bool - - // DSACKSeen is true iff the connection has seen a DSACK. - DSACKSeen bool - - // ReoWnd is the reordering window time used for recording packet - // transmission times. It is used to defer the moment at which RACK - // marks a packet lost. - ReoWnd time.Duration - - // ReoWndIncr is the multiplier applied to adjust reorder window. - ReoWndIncr uint8 - - // ReoWndPersist is the number of loss recoveries before resetting - // reorder window. - ReoWndPersist int8 - - // RTTSeq is the SND.NXT when RTT is updated. - RTTSeq seqnum.Value -} - -// TCPEndpointID is the unique 4 tuple that identifies a given endpoint. -// -// +stateify savable -type TCPEndpointID struct { - // LocalPort is the local port associated with the endpoint. - LocalPort uint16 - - // LocalAddress is the local [network layer] address associated with - // the endpoint. - LocalAddress tcpip.Address - - // RemotePort is the remote port associated with the endpoint. - RemotePort uint16 - - // RemoteAddress it the remote [network layer] address associated with - // the endpoint. - RemoteAddress tcpip.Address -} - -// TCPFastRecoveryState holds a copy of the internal fast recovery state of a -// TCP endpoint. -// -// +stateify savable -type TCPFastRecoveryState struct { - // Active if true indicates the endpoint is in fast recovery. The - // following fields are only meaningful when Active is true. - Active bool - - // First is the first unacknowledged sequence number being recovered. - First seqnum.Value - - // Last is the 'recover' sequence number that indicates the point at - // which we should exit recovery barring any timeouts etc. - Last seqnum.Value - - // MaxCwnd is the maximum value we are permitted to grow the congestion - // window during recovery. This is set at the time we enter recovery. - // It exists to avoid attacks where the receiver intentionally sends - // duplicate acks to artificially inflate the sender's cwnd. - MaxCwnd int - - // HighRxt is the highest sequence number which has been retransmitted - // during the current loss recovery phase. See: RFC 6675 Section 2 for - // details. - HighRxt seqnum.Value - - // RescueRxt is the highest sequence number which has been - // optimistically retransmitted to prevent stalling of the ACK clock - // when there is loss at the end of the window and no new data is - // available for transmission. See: RFC 6675 Section 2 for details. - RescueRxt seqnum.Value -} - -// TCPReceiverState holds a copy of the internal state of the receiver for a -// given TCP endpoint. -// -// +stateify savable -type TCPReceiverState struct { - // RcvNxt is the TCP variable RCV.NXT. - RcvNxt seqnum.Value - - // RcvAcc is one beyond the last acceptable sequence number. That is, - // the "largest" sequence value that the receiver has announced to its - // peer that it's willing to accept. This may be different than RcvNxt - // + (last advertised receive window) if the receive window is reduced; - // in that case we have to reduce the window as we receive more data - // instead of shrinking it. - RcvAcc seqnum.Value - - // RcvWndScale is the window scaling to use for inbound segments. - RcvWndScale uint8 - - // PendingBufUsed is the number of bytes pending in the receive queue. - PendingBufUsed int -} - -// TCPRTTState holds a copy of information about the endpoint's round trip -// time. -// -// +stateify savable -type TCPRTTState struct { - // SRTT is the smoothed round trip time defined in section 2 of RFC - // 6298. - SRTT time.Duration - - // RTTVar is the round-trip time variation as defined in section 2 of - // RFC 6298. - RTTVar time.Duration - - // SRTTInited if true indicates that a valid RTT measurement has been - // completed. - SRTTInited bool -} - -// TCPSenderState holds a copy of the internal state of the sender for a given -// TCP Endpoint. -// -// +stateify savable -type TCPSenderState struct { - // LastSendTime is the timestamp at which we sent the last segment. - LastSendTime tcpip.MonotonicTime - - // DupAckCount is the number of Duplicate ACKs received. It is used for - // fast retransmit. - DupAckCount int - - // SndCwnd is the size of the sending congestion window in packets. - SndCwnd int - - // Ssthresh is the threshold between slow start and congestion - // avoidance. - Ssthresh int - - // SndCAAckCount is the number of packets acknowledged during - // congestion avoidance. When enough packets have been ack'd (typically - // cwnd packets), the congestion window is incremented by one. - SndCAAckCount int - - // Outstanding is the number of packets that have been sent but not yet - // acknowledged. - Outstanding int - - // SackedOut is the number of packets which have been selectively - // acked. - SackedOut int - - // SndWnd is the send window size in bytes. - SndWnd seqnum.Size - - // SndUna is the next unacknowledged sequence number. - SndUna seqnum.Value - - // SndNxt is the sequence number of the next segment to be sent. - SndNxt seqnum.Value - - // RTTMeasureSeqNum is the sequence number being used for the latest - // RTT measurement. - RTTMeasureSeqNum seqnum.Value - - // RTTMeasureTime is the time when the RTTMeasureSeqNum was sent. - RTTMeasureTime tcpip.MonotonicTime - - // Closed indicates that the caller has closed the endpoint for - // sending. - Closed bool - - // RTO is the retransmit timeout as defined in section of 2 of RFC - // 6298. - RTO time.Duration - - // RTTState holds information about the endpoint's round trip time. - RTTState TCPRTTState - - // MaxPayloadSize is the maximum size of the payload of a given - // segment. It is initialized on demand. - MaxPayloadSize int - - // SndWndScale is the number of bits to shift left when reading the - // send window size from a segment. - SndWndScale uint8 - - // MaxSentAck is the highest acknowledgement number sent till now. - MaxSentAck seqnum.Value - - // FastRecovery holds the fast recovery state for the endpoint. - FastRecovery TCPFastRecoveryState - - // Cubic holds the state related to CUBIC congestion control. - Cubic TCPCubicState - - // RACKState holds the state related to RACK loss detection algorithm. - RACKState TCPRACKState - - // RetransmitTS records the timestamp used to detect spurious recovery. - RetransmitTS uint32 - - // SpuriousRecovery indicates if the sender entered recovery spuriously. - SpuriousRecovery bool -} - -// TCPSACKInfo holds TCP SACK related information for a given TCP endpoint. -// -// +stateify savable -type TCPSACKInfo struct { - // Blocks is the list of SACK Blocks that identify the out of order - // segments held by a given TCP endpoint. - Blocks []header.SACKBlock - - // ReceivedBlocks are the SACK blocks received by this endpoint from - // the peer endpoint. - ReceivedBlocks []header.SACKBlock - - // MaxSACKED is the highest sequence number that has been SACKED by the - // peer. - MaxSACKED seqnum.Value -} - -// RcvBufAutoTuneParams holds state related to TCP receive buffer auto-tuning. -// -// +stateify savable -type RcvBufAutoTuneParams struct { - // MeasureTime is the time at which the current measurement was - // started. - MeasureTime tcpip.MonotonicTime - - // CopiedBytes is the number of bytes copied to user space since this - // measure began. - CopiedBytes int - - // PrevCopiedBytes is the number of bytes copied to userspace in the - // previous RTT period. - PrevCopiedBytes int - - // RcvBufSize is the auto tuned receive buffer size. - RcvBufSize int - - // RTT is the smoothed RTT as measured by observing the time between - // when a byte is first acknowledged and the receipt of data that is at - // least one window beyond the sequence number that was acknowledged. - RTT time.Duration - - // RTTVar is the "round-trip time variation" as defined in section 2 of - // RFC6298. - RTTVar time.Duration - - // RTTMeasureSeqNumber is the highest acceptable sequence number at the - // time this RTT measurement period began. - RTTMeasureSeqNumber seqnum.Value - - // RTTMeasureTime is the absolute time at which the current RTT - // measurement period began. - RTTMeasureTime tcpip.MonotonicTime - - // Disabled is true if an explicit receive buffer is set for the - // endpoint. - Disabled bool -} - -// TCPRcvBufState contains information about the state of an endpoint's receive -// socket buffer. -// -// +stateify savable -type TCPRcvBufState struct { - // RcvBufUsed is the amount of bytes actually held in the receive - // socket buffer for the endpoint. - RcvBufUsed int - - // RcvBufAutoTuneParams is used to hold state variables to compute the - // auto tuned receive buffer size. - RcvAutoParams RcvBufAutoTuneParams - - // RcvClosed if true, indicates the endpoint has been closed for - // reading. - RcvClosed bool -} - -// TCPSndBufState contains information about the state of an endpoint's send -// socket buffer. -// -// +stateify savable -type TCPSndBufState struct { - // SndBufSize is the size of the socket send buffer. - SndBufSize int - - // SndBufUsed is the number of bytes held in the socket send buffer. - SndBufUsed int - - // SndClosed indicates that the endpoint has been closed for sends. - SndClosed bool - - // PacketTooBigCount is used to notify the main protocol routine how - // many times a "packet too big" control packet is received. - PacketTooBigCount int - - // SndMTU is the smallest MTU seen in the control packets received. - SndMTU int - - // AutoTuneSndBufDisabled indicates that the auto tuning of send buffer - // is disabled. - AutoTuneSndBufDisabled atomicbitops.Uint32 -} - -// TCPEndpointStateInner contains the members of TCPEndpointState used directly -// (that is, not within another containing struct) within the endpoint's -// internal implementation. -// -// +stateify savable -type TCPEndpointStateInner struct { - // TSOffset is a randomized offset added to the value of the TSVal - // field in the timestamp option. - TSOffset tcp.TSOffset - - // SACKPermitted is set to true if the peer sends the TCPSACKPermitted - // option in the SYN/SYN-ACK. - SACKPermitted bool - - // SendTSOk is used to indicate when the TS Option has been negotiated. - // When sendTSOk is true every non-RST segment should carry a TS as per - // RFC7323#section-1.1. - SendTSOk bool - - // RecentTS is the timestamp that should be sent in the TSEcr field of - // the timestamp for future segments sent by the endpoint. This field - // is updated if required when a new segment is received by this - // endpoint. - RecentTS uint32 -} - -// TCPEndpointState is a copy of the internal state of a TCP endpoint. -// -// +stateify savable -type TCPEndpointState struct { - // TCPEndpointStateInner contains the members of TCPEndpointState used - // by the endpoint's internal implementation. - TCPEndpointStateInner - - // ID is a copy of the TransportEndpointID for the endpoint. - ID TCPEndpointID - - // SegTime denotes the absolute time when this segment was received. - SegTime tcpip.MonotonicTime - - // RcvBufState contains information about the state of the endpoint's - // receive socket buffer. - RcvBufState TCPRcvBufState - - // SndBufState contains information about the state of the endpoint's - // send socket buffer. - SndBufState TCPSndBufState - - // SACK holds TCP SACK related information for this endpoint. - SACK TCPSACKInfo - - // Receiver holds variables related to the TCP receiver for the - // endpoint. - Receiver TCPReceiverState - - // Sender holds state related to the TCP Sender for the endpoint. - Sender TCPSenderState -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/transport_demuxer.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/transport_demuxer.go deleted file mode 100644 index 98e5b1df7c..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/transport_demuxer.go +++ /dev/null @@ -1,733 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package stack - -import ( - "fmt" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/hash/jenkins" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/ports" -) - -// +stateify savable -type protocolIDs struct { - network tcpip.NetworkProtocolNumber - transport tcpip.TransportProtocolNumber -} - -// transportEndpoints manages all endpoints of a given protocol. It has its own -// mutex so as to reduce interference between protocols. -// -// +stateify savable -type transportEndpoints struct { - mu transportEndpointsRWMutex `state:"nosave"` - // +checklocks:mu - endpoints map[TransportEndpointID]*endpointsByNIC - // rawEndpoints contains endpoints for raw sockets, which receive all - // traffic of a given protocol regardless of port. - // - // +checklocks:mu - rawEndpoints []RawTransportEndpoint -} - -// unregisterEndpoint unregisters the endpoint with the given id such that it -// won't receive any more packets. -func (eps *transportEndpoints) unregisterEndpoint(id TransportEndpointID, ep TransportEndpoint, flags ports.Flags, bindToDevice tcpip.NICID) { - eps.mu.Lock() - defer eps.mu.Unlock() - epsByNIC, ok := eps.endpoints[id] - if !ok { - return - } - if !epsByNIC.unregisterEndpoint(bindToDevice, ep, flags) { - return - } - delete(eps.endpoints, id) -} - -func (eps *transportEndpoints) transportEndpoints() []TransportEndpoint { - eps.mu.RLock() - defer eps.mu.RUnlock() - es := make([]TransportEndpoint, 0, len(eps.endpoints)) - for _, e := range eps.endpoints { - es = append(es, e.transportEndpoints()...) - } - return es -} - -// iterEndpointsLocked yields all endpointsByNIC in eps that match id, in -// descending order of match quality. If a call to yield returns false, -// iterEndpointsLocked stops iteration and returns immediately. -// -// +checklocksread:eps.mu -func (eps *transportEndpoints) iterEndpointsLocked(id TransportEndpointID, yield func(*endpointsByNIC) bool) { - // Try to find a match with the id as provided. - if ep, ok := eps.endpoints[id]; ok { - if !yield(ep) { - return - } - } - - // Try to find a match with the id minus the local address. - nid := id - - nid.LocalAddress = tcpip.Address{} - if ep, ok := eps.endpoints[nid]; ok { - if !yield(ep) { - return - } - } - - // Try to find a match with the id minus the remote part. - nid.LocalAddress = id.LocalAddress - nid.RemoteAddress = tcpip.Address{} - nid.RemotePort = 0 - if ep, ok := eps.endpoints[nid]; ok { - if !yield(ep) { - return - } - } - - // Try to find a match with only the local port. - nid.LocalAddress = tcpip.Address{} - if ep, ok := eps.endpoints[nid]; ok { - if !yield(ep) { - return - } - } -} - -// findAllEndpointsLocked returns all endpointsByNIC in eps that match id, in -// descending order of match quality. -// -// +checklocksread:eps.mu -func (eps *transportEndpoints) findAllEndpointsLocked(id TransportEndpointID) []*endpointsByNIC { - var matchedEPs []*endpointsByNIC - eps.iterEndpointsLocked(id, func(ep *endpointsByNIC) bool { - matchedEPs = append(matchedEPs, ep) - return true - }) - return matchedEPs -} - -// findEndpointLocked returns the endpoint that most closely matches the given id. -// -// +checklocksread:eps.mu -func (eps *transportEndpoints) findEndpointLocked(id TransportEndpointID) *endpointsByNIC { - var matchedEP *endpointsByNIC - eps.iterEndpointsLocked(id, func(ep *endpointsByNIC) bool { - matchedEP = ep - return false - }) - return matchedEP -} - -// +stateify savable -type endpointsByNIC struct { - // seed is a random secret for a jenkins hash. - seed uint32 - - mu endpointsByNICRWMutex `state:"nosave"` - // +checklocks:mu - endpoints map[tcpip.NICID]*multiPortEndpoint -} - -func (epsByNIC *endpointsByNIC) transportEndpoints() []TransportEndpoint { - epsByNIC.mu.RLock() - defer epsByNIC.mu.RUnlock() - var eps []TransportEndpoint - for _, ep := range epsByNIC.endpoints { - eps = append(eps, ep.transportEndpoints()...) - } - return eps -} - -// handlePacket is called by the stack when new packets arrive to this transport -// endpoint. It returns false if the packet could not be matched to any -// transport endpoint, true otherwise. -func (epsByNIC *endpointsByNIC) handlePacket(id TransportEndpointID, pkt *PacketBuffer) bool { - epsByNIC.mu.RLock() - - mpep, ok := epsByNIC.endpoints[pkt.NICID] - if !ok { - if mpep, ok = epsByNIC.endpoints[0]; !ok { - epsByNIC.mu.RUnlock() // Don't use defer for performance reasons. - return false - } - } - - // If this is a broadcast or multicast datagram, deliver the datagram to all - // endpoints bound to the right device. - if isInboundMulticastOrBroadcast(pkt, id.LocalAddress) { - mpep.handlePacketAll(id, pkt) - epsByNIC.mu.RUnlock() // Don't use defer for performance reasons. - return true - } - // multiPortEndpoints are guaranteed to have at least one element. - transEP := mpep.selectEndpoint(id, epsByNIC.seed) - if queuedProtocol, mustQueue := mpep.demux.queuedProtocols[protocolIDs{mpep.netProto, mpep.transProto}]; mustQueue { - queuedProtocol.QueuePacket(transEP, id, pkt) - epsByNIC.mu.RUnlock() - return true - } - epsByNIC.mu.RUnlock() - - transEP.HandlePacket(id, pkt) - return true -} - -// handleError delivers an error to the transport endpoint identified by id. -func (epsByNIC *endpointsByNIC) handleError(n *nic, id TransportEndpointID, transErr TransportError, pkt *PacketBuffer) { - epsByNIC.mu.RLock() - - mpep, ok := epsByNIC.endpoints[n.ID()] - if !ok { - mpep, ok = epsByNIC.endpoints[0] - } - if !ok { - epsByNIC.mu.RUnlock() - return - } - - // TODO(eyalsoha): Why don't we look at id to see if this packet needs to - // broadcast like we are doing with handlePacket above? - - // multiPortEndpoints are guaranteed to have at least one element. - transEP := mpep.selectEndpoint(id, epsByNIC.seed) - epsByNIC.mu.RUnlock() - - transEP.HandleError(transErr, pkt) -} - -// registerEndpoint returns true if it succeeds. It fails and returns -// false if ep already has an element with the same key. -func (epsByNIC *endpointsByNIC) registerEndpoint(d *transportDemuxer, netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber, t TransportEndpoint, flags ports.Flags, bindToDevice tcpip.NICID) tcpip.Error { - epsByNIC.mu.Lock() - defer epsByNIC.mu.Unlock() - - multiPortEp, ok := epsByNIC.endpoints[bindToDevice] - if !ok { - multiPortEp = &multiPortEndpoint{ - demux: d, - netProto: netProto, - transProto: transProto, - } - } - - if err := multiPortEp.singleRegisterEndpoint(t, flags); err != nil { - return err - } - // Only add this newly created multiportEndpoint if the singleRegisterEndpoint - // succeeded. - if !ok { - epsByNIC.endpoints[bindToDevice] = multiPortEp - } - return nil -} - -func (epsByNIC *endpointsByNIC) checkEndpoint(flags ports.Flags, bindToDevice tcpip.NICID) tcpip.Error { - epsByNIC.mu.RLock() - defer epsByNIC.mu.RUnlock() - - multiPortEp, ok := epsByNIC.endpoints[bindToDevice] - if !ok { - return nil - } - - return multiPortEp.singleCheckEndpoint(flags) -} - -// unregisterEndpoint returns true if endpointsByNIC has to be unregistered. -func (epsByNIC *endpointsByNIC) unregisterEndpoint(bindToDevice tcpip.NICID, t TransportEndpoint, flags ports.Flags) bool { - epsByNIC.mu.Lock() - defer epsByNIC.mu.Unlock() - multiPortEp, ok := epsByNIC.endpoints[bindToDevice] - if !ok { - return false - } - if multiPortEp.unregisterEndpoint(t, flags) { - delete(epsByNIC.endpoints, bindToDevice) - } - return len(epsByNIC.endpoints) == 0 -} - -// transportDemuxer demultiplexes packets targeted at a transport endpoint -// (i.e., after they've been parsed by the network layer). It does two levels -// of demultiplexing: first based on the network and transport protocols, then -// based on endpoints IDs. It should only be instantiated via -// newTransportDemuxer. -// -// +stateify savable -type transportDemuxer struct { - stack *Stack - - // protocol is immutable. - protocol map[protocolIDs]*transportEndpoints - queuedProtocols map[protocolIDs]queuedTransportProtocol -} - -// queuedTransportProtocol if supported by a protocol implementation will cause -// the dispatcher to delivery packets to the QueuePacket method instead of -// calling HandlePacket directly on the endpoint. -type queuedTransportProtocol interface { - QueuePacket(ep TransportEndpoint, id TransportEndpointID, pkt *PacketBuffer) -} - -func newTransportDemuxer(stack *Stack) *transportDemuxer { - d := &transportDemuxer{ - stack: stack, - protocol: make(map[protocolIDs]*transportEndpoints), - queuedProtocols: make(map[protocolIDs]queuedTransportProtocol), - } - - // Add each network and transport pair to the demuxer. - for netProto := range stack.networkProtocols { - for proto := range stack.transportProtocols { - protoIDs := protocolIDs{netProto, proto} - d.protocol[protoIDs] = &transportEndpoints{ - endpoints: make(map[TransportEndpointID]*endpointsByNIC), - } - qTransProto, isQueued := (stack.transportProtocols[proto].proto).(queuedTransportProtocol) - if isQueued { - d.queuedProtocols[protoIDs] = qTransProto - } - } - } - - return d -} - -// registerEndpoint registers the given endpoint with the dispatcher such that -// packets that match the endpoint ID are delivered to it. -func (d *transportDemuxer) registerEndpoint(netProtos []tcpip.NetworkProtocolNumber, protocol tcpip.TransportProtocolNumber, id TransportEndpointID, ep TransportEndpoint, flags ports.Flags, bindToDevice tcpip.NICID) tcpip.Error { - for i, n := range netProtos { - if err := d.singleRegisterEndpoint(n, protocol, id, ep, flags, bindToDevice); err != nil { - d.unregisterEndpoint(netProtos[:i], protocol, id, ep, flags, bindToDevice) - return err - } - } - - return nil -} - -// checkEndpoint checks if an endpoint can be registered with the dispatcher. -func (d *transportDemuxer) checkEndpoint(netProtos []tcpip.NetworkProtocolNumber, protocol tcpip.TransportProtocolNumber, id TransportEndpointID, flags ports.Flags, bindToDevice tcpip.NICID) tcpip.Error { - for _, n := range netProtos { - if err := d.singleCheckEndpoint(n, protocol, id, flags, bindToDevice); err != nil { - return err - } - } - - return nil -} - -// multiPortEndpoint is a container for TransportEndpoints which are bound to -// the same pair of address and port. endpointsArr always has at least one -// element. -// -// FIXME(gvisor.dev/issue/873): Restore this properly. Currently, we just save -// this to ensure that the underlying endpoints get saved/restored, but not not -// use the restored copy. -// -// +stateify savable -type multiPortEndpoint struct { - demux *transportDemuxer - netProto tcpip.NetworkProtocolNumber - transProto tcpip.TransportProtocolNumber - - flags ports.FlagCounter - - mu multiPortEndpointRWMutex `state:"nosave"` - // endpoints stores the transport endpoints in the order in which they - // were bound. This is required for UDP SO_REUSEADDR. - // - // +checklocks:mu - endpoints []TransportEndpoint -} - -func (ep *multiPortEndpoint) transportEndpoints() []TransportEndpoint { - ep.mu.RLock() - eps := append([]TransportEndpoint(nil), ep.endpoints...) - ep.mu.RUnlock() - return eps -} - -// reciprocalScale scales a value into range [0, n). -// -// This is similar to val % n, but faster. -// See http://lemire.me/blog/2016/06/27/a-fast-alternative-to-the-modulo-reduction/ -func reciprocalScale(val, n uint32) uint32 { - return uint32((uint64(val) * uint64(n)) >> 32) -} - -// selectEndpoint calculates a hash of destination and source addresses and -// ports then uses it to select a socket. In this case, all packets from one -// address will be sent to same endpoint. -func (ep *multiPortEndpoint) selectEndpoint(id TransportEndpointID, seed uint32) TransportEndpoint { - ep.mu.RLock() - defer ep.mu.RUnlock() - - if len(ep.endpoints) == 1 { - return ep.endpoints[0] - } - - if ep.flags.SharedFlags().ToFlags().Effective().MostRecent { - return ep.endpoints[len(ep.endpoints)-1] - } - - payload := []byte{ - byte(id.LocalPort), - byte(id.LocalPort >> 8), - byte(id.RemotePort), - byte(id.RemotePort >> 8), - } - - h := jenkins.Sum32(seed) - h.Write(payload) - h.Write(id.LocalAddress.AsSlice()) - h.Write(id.RemoteAddress.AsSlice()) - hash := h.Sum32() - - idx := reciprocalScale(hash, uint32(len(ep.endpoints))) - return ep.endpoints[idx] -} - -func (ep *multiPortEndpoint) handlePacketAll(id TransportEndpointID, pkt *PacketBuffer) { - ep.mu.RLock() - queuedProtocol, mustQueue := ep.demux.queuedProtocols[protocolIDs{ep.netProto, ep.transProto}] - // HandlePacket may modify pkt, so each endpoint needs - // its own copy except for the final one. - for _, endpoint := range ep.endpoints[:len(ep.endpoints)-1] { - clone := pkt.Clone() - if mustQueue { - queuedProtocol.QueuePacket(endpoint, id, clone) - } else { - endpoint.HandlePacket(id, clone) - } - clone.DecRef() - } - if endpoint := ep.endpoints[len(ep.endpoints)-1]; mustQueue { - queuedProtocol.QueuePacket(endpoint, id, pkt) - } else { - endpoint.HandlePacket(id, pkt) - } - ep.mu.RUnlock() // Don't use defer for performance reasons. -} - -// singleRegisterEndpoint tries to add an endpoint to the multiPortEndpoint -// list. The list might be empty already. -func (ep *multiPortEndpoint) singleRegisterEndpoint(t TransportEndpoint, flags ports.Flags) tcpip.Error { - ep.mu.Lock() - defer ep.mu.Unlock() - bits := flags.Bits() & ports.MultiBindFlagMask - - if len(ep.endpoints) != 0 { - // If it was previously bound, we need to check if we can bind again. - if ep.flags.TotalRefs() > 0 && bits&ep.flags.SharedFlags() == 0 { - return &tcpip.ErrPortInUse{} - } - } - - ep.endpoints = append(ep.endpoints, t) - ep.flags.AddRef(bits) - - return nil -} - -func (ep *multiPortEndpoint) singleCheckEndpoint(flags ports.Flags) tcpip.Error { - ep.mu.RLock() - defer ep.mu.RUnlock() - - bits := flags.Bits() & ports.MultiBindFlagMask - - if len(ep.endpoints) != 0 { - // If it was previously bound, we need to check if we can bind again. - if ep.flags.TotalRefs() > 0 && bits&ep.flags.SharedFlags() == 0 { - return &tcpip.ErrPortInUse{} - } - } - - return nil -} - -// unregisterEndpoint returns true if multiPortEndpoint has to be unregistered. -func (ep *multiPortEndpoint) unregisterEndpoint(t TransportEndpoint, flags ports.Flags) bool { - ep.mu.Lock() - defer ep.mu.Unlock() - - for i, endpoint := range ep.endpoints { - if endpoint == t { - copy(ep.endpoints[i:], ep.endpoints[i+1:]) - ep.endpoints[len(ep.endpoints)-1] = nil - ep.endpoints = ep.endpoints[:len(ep.endpoints)-1] - - ep.flags.DropRef(flags.Bits() & ports.MultiBindFlagMask) - break - } - } - return len(ep.endpoints) == 0 -} - -func (d *transportDemuxer) singleRegisterEndpoint(netProto tcpip.NetworkProtocolNumber, protocol tcpip.TransportProtocolNumber, id TransportEndpointID, ep TransportEndpoint, flags ports.Flags, bindToDevice tcpip.NICID) tcpip.Error { - if id.RemotePort != 0 { - // SO_REUSEPORT only applies to bound/listening endpoints. - flags.LoadBalanced = false - } - - eps, ok := d.protocol[protocolIDs{netProto, protocol}] - if !ok { - return &tcpip.ErrUnknownProtocol{} - } - - eps.mu.Lock() - defer eps.mu.Unlock() - epsByNIC, ok := eps.endpoints[id] - if !ok { - epsByNIC = &endpointsByNIC{ - endpoints: make(map[tcpip.NICID]*multiPortEndpoint), - seed: d.stack.seed, - } - } - if err := epsByNIC.registerEndpoint(d, netProto, protocol, ep, flags, bindToDevice); err != nil { - return err - } - // Only add this newly created epsByNIC if registerEndpoint succeeded. - if !ok { - eps.endpoints[id] = epsByNIC - } - return nil -} - -func (d *transportDemuxer) singleCheckEndpoint(netProto tcpip.NetworkProtocolNumber, protocol tcpip.TransportProtocolNumber, id TransportEndpointID, flags ports.Flags, bindToDevice tcpip.NICID) tcpip.Error { - if id.RemotePort != 0 { - // SO_REUSEPORT only applies to bound/listening endpoints. - flags.LoadBalanced = false - } - - eps, ok := d.protocol[protocolIDs{netProto, protocol}] - if !ok { - return &tcpip.ErrUnknownProtocol{} - } - - eps.mu.RLock() - defer eps.mu.RUnlock() - - epsByNIC, ok := eps.endpoints[id] - if !ok { - return nil - } - - return epsByNIC.checkEndpoint(flags, bindToDevice) -} - -// unregisterEndpoint unregisters the endpoint with the given id such that it -// won't receive any more packets. -func (d *transportDemuxer) unregisterEndpoint(netProtos []tcpip.NetworkProtocolNumber, protocol tcpip.TransportProtocolNumber, id TransportEndpointID, ep TransportEndpoint, flags ports.Flags, bindToDevice tcpip.NICID) { - if id.RemotePort != 0 { - // SO_REUSEPORT only applies to bound/listening endpoints. - flags.LoadBalanced = false - } - - for _, n := range netProtos { - if eps, ok := d.protocol[protocolIDs{n, protocol}]; ok { - eps.unregisterEndpoint(id, ep, flags, bindToDevice) - } - } -} - -// deliverPacket attempts to find one or more matching transport endpoints, and -// then, if matches are found, delivers the packet to them. Returns true if -// the packet no longer needs to be handled. -func (d *transportDemuxer) deliverPacket(protocol tcpip.TransportProtocolNumber, pkt *PacketBuffer, id TransportEndpointID) bool { - eps, ok := d.protocol[protocolIDs{pkt.NetworkProtocolNumber, protocol}] - if !ok { - return false - } - - // If the packet is a UDP broadcast or multicast, then find all matching - // transport endpoints. - if protocol == header.UDPProtocolNumber && isInboundMulticastOrBroadcast(pkt, id.LocalAddress) { - eps.mu.RLock() - destEPs := eps.findAllEndpointsLocked(id) - eps.mu.RUnlock() - // Fail if we didn't find at least one matching transport endpoint. - if len(destEPs) == 0 { - d.stack.stats.UDP.UnknownPortErrors.Increment() - return false - } - // handlePacket takes may modify pkt, so each endpoint needs its own - // copy except for the final one. - for _, ep := range destEPs[:len(destEPs)-1] { - clone := pkt.Clone() - ep.handlePacket(id, clone) - clone.DecRef() - } - destEPs[len(destEPs)-1].handlePacket(id, pkt) - return true - } - - // If the packet is a TCP packet with a unspecified source or non-unicast - // destination address, then do nothing further and instruct the caller to do - // the same. The network layer handles address validation for specified source - // addresses. - if protocol == header.TCPProtocolNumber && (!isSpecified(id.LocalAddress) || !isSpecified(id.RemoteAddress) || isInboundMulticastOrBroadcast(pkt, id.LocalAddress)) { - // TCP can only be used to communicate between a single source and a - // single destination; the addresses must be unicast.e - d.stack.stats.TCP.InvalidSegmentsReceived.Increment() - return true - } - - eps.mu.RLock() - ep := eps.findEndpointLocked(id) - eps.mu.RUnlock() - if ep == nil { - if protocol == header.UDPProtocolNumber { - d.stack.stats.UDP.UnknownPortErrors.Increment() - } - return false - } - return ep.handlePacket(id, pkt) -} - -// deliverRawPacket attempts to deliver the given packet and returns whether it -// was delivered successfully. -func (d *transportDemuxer) deliverRawPacket(protocol tcpip.TransportProtocolNumber, pkt *PacketBuffer) bool { - eps, ok := d.protocol[protocolIDs{pkt.NetworkProtocolNumber, protocol}] - if !ok { - return false - } - - // As in net/ipv4/ip_input.c:ip_local_deliver, attempt to deliver via - // raw endpoint first. If there are multiple raw endpoints, they all - // receive the packet. - eps.mu.RLock() - // Copy the list of raw endpoints to avoid packet handling under lock. - var rawEPs []RawTransportEndpoint - if n := len(eps.rawEndpoints); n != 0 { - rawEPs = make([]RawTransportEndpoint, n) - if m := copy(rawEPs, eps.rawEndpoints); m != n { - panic(fmt.Sprintf("unexpected copy = %d, want %d", m, n)) - } - } - eps.mu.RUnlock() - for _, rawEP := range rawEPs { - // Each endpoint gets its own copy of the packet for the sake - // of save/restore. - clone := pkt.Clone() - rawEP.HandlePacket(clone) - clone.DecRef() - } - - return len(rawEPs) != 0 -} - -// deliverError attempts to deliver the given error to the appropriate transport -// endpoint. -// -// Returns true if the error was delivered. -func (d *transportDemuxer) deliverError(n *nic, net tcpip.NetworkProtocolNumber, trans tcpip.TransportProtocolNumber, transErr TransportError, pkt *PacketBuffer, id TransportEndpointID) bool { - eps, ok := d.protocol[protocolIDs{net, trans}] - if !ok { - return false - } - - eps.mu.RLock() - ep := eps.findEndpointLocked(id) - eps.mu.RUnlock() - if ep == nil { - return false - } - - ep.handleError(n, id, transErr, pkt) - return true -} - -// findTransportEndpoint find a single endpoint that most closely matches the provided id. -func (d *transportDemuxer) findTransportEndpoint(netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber, id TransportEndpointID, nicID tcpip.NICID) TransportEndpoint { - eps, ok := d.protocol[protocolIDs{netProto, transProto}] - if !ok { - return nil - } - - eps.mu.RLock() - epsByNIC := eps.findEndpointLocked(id) - if epsByNIC == nil { - eps.mu.RUnlock() - return nil - } - - epsByNIC.mu.RLock() - eps.mu.RUnlock() - - mpep, ok := epsByNIC.endpoints[nicID] - if !ok { - if mpep, ok = epsByNIC.endpoints[0]; !ok { - epsByNIC.mu.RUnlock() // Don't use defer for performance reasons. - return nil - } - } - - ep := mpep.selectEndpoint(id, epsByNIC.seed) - epsByNIC.mu.RUnlock() - return ep -} - -// registerRawEndpoint registers the given endpoint with the dispatcher such -// that packets of the appropriate protocol are delivered to it. A single -// packet can be sent to one or more raw endpoints along with a non-raw -// endpoint. -func (d *transportDemuxer) registerRawEndpoint(netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber, ep RawTransportEndpoint) tcpip.Error { - eps, ok := d.protocol[protocolIDs{netProto, transProto}] - if !ok { - return &tcpip.ErrNotSupported{} - } - - eps.mu.Lock() - eps.rawEndpoints = append(eps.rawEndpoints, ep) - eps.mu.Unlock() - - return nil -} - -// unregisterRawEndpoint unregisters the raw endpoint for the given transport -// protocol such that it won't receive any more packets. -func (d *transportDemuxer) unregisterRawEndpoint(netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber, ep RawTransportEndpoint) { - eps, ok := d.protocol[protocolIDs{netProto, transProto}] - if !ok { - panic(fmt.Errorf("tried to unregister endpoint with unsupported network and transport protocol pair: %d, %d", netProto, transProto)) - } - - eps.mu.Lock() - for i, rawEP := range eps.rawEndpoints { - if rawEP == ep { - lastIdx := len(eps.rawEndpoints) - 1 - eps.rawEndpoints[i] = eps.rawEndpoints[lastIdx] - eps.rawEndpoints[lastIdx] = nil - eps.rawEndpoints = eps.rawEndpoints[:lastIdx] - break - } - } - eps.mu.Unlock() -} - -func isInboundMulticastOrBroadcast(pkt *PacketBuffer, localAddr tcpip.Address) bool { - return pkt.NetworkPacketInfo.LocalAddressBroadcast || header.IsV4MulticastAddress(localAddr) || header.IsV6MulticastAddress(localAddr) -} - -func isSpecified(addr tcpip.Address) bool { - return addr != header.IPv4Any && addr != header.IPv6Any -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/transport_endpoints_mutex.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/transport_endpoints_mutex.go deleted file mode 100644 index cb6f13d7ae..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/transport_endpoints_mutex.go +++ /dev/null @@ -1,96 +0,0 @@ -package stack - -import ( - "reflect" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/sync/locking" -) - -// RWMutex is sync.RWMutex with the correctness validator. -type transportEndpointsRWMutex struct { - mu sync.RWMutex -} - -// lockNames is a list of user-friendly lock names. -// Populated in init. -var transportEndpointslockNames []string - -// lockNameIndex is used as an index passed to NestedLock and NestedUnlock, -// referring to an index within lockNames. -// Values are specified using the "consts" field of go_template_instance. -type transportEndpointslockNameIndex int - -// DO NOT REMOVE: The following function automatically replaced with lock index constants. -// LOCK_NAME_INDEX_CONSTANTS -const () - -// Lock locks m. -// +checklocksignore -func (m *transportEndpointsRWMutex) Lock() { - locking.AddGLock(transportEndpointsprefixIndex, -1) - m.mu.Lock() -} - -// NestedLock locks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *transportEndpointsRWMutex) NestedLock(i transportEndpointslockNameIndex) { - locking.AddGLock(transportEndpointsprefixIndex, int(i)) - m.mu.Lock() -} - -// Unlock unlocks m. -// +checklocksignore -func (m *transportEndpointsRWMutex) Unlock() { - m.mu.Unlock() - locking.DelGLock(transportEndpointsprefixIndex, -1) -} - -// NestedUnlock unlocks m knowing that another lock of the same type is held. -// +checklocksignore -func (m *transportEndpointsRWMutex) NestedUnlock(i transportEndpointslockNameIndex) { - m.mu.Unlock() - locking.DelGLock(transportEndpointsprefixIndex, int(i)) -} - -// RLock locks m for reading. -// +checklocksignore -func (m *transportEndpointsRWMutex) RLock() { - locking.AddGLock(transportEndpointsprefixIndex, -1) - m.mu.RLock() -} - -// RUnlock undoes a single RLock call. -// +checklocksignore -func (m *transportEndpointsRWMutex) RUnlock() { - m.mu.RUnlock() - locking.DelGLock(transportEndpointsprefixIndex, -1) -} - -// RLockBypass locks m for reading without executing the validator. -// +checklocksignore -func (m *transportEndpointsRWMutex) RLockBypass() { - m.mu.RLock() -} - -// RUnlockBypass undoes a single RLockBypass call. -// +checklocksignore -func (m *transportEndpointsRWMutex) RUnlockBypass() { - m.mu.RUnlock() -} - -// DowngradeLock atomically unlocks rw for writing and locks it for reading. -// +checklocksignore -func (m *transportEndpointsRWMutex) DowngradeLock() { - m.mu.DowngradeLock() -} - -var transportEndpointsprefixIndex *locking.MutexClass - -// DO NOT REMOVE: The following function is automatically replaced. -func transportEndpointsinitLockNames() {} - -func init() { - transportEndpointsinitLockNames() - transportEndpointsprefixIndex = locking.NewMutexClass(reflect.TypeOf(transportEndpointsRWMutex{}), transportEndpointslockNames) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/tuple_list.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/tuple_list.go deleted file mode 100644 index f7f919635b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stack/tuple_list.go +++ /dev/null @@ -1,239 +0,0 @@ -package stack - -// ElementMapper provides an identity mapping by default. -// -// This can be replaced to provide a struct that maps elements to linker -// objects, if they are not the same. An ElementMapper is not typically -// required if: Linker is left as is, Element is left as is, or Linker and -// Element are the same type. -type tupleElementMapper struct{} - -// linkerFor maps an Element to a Linker. -// -// This default implementation should be inlined. -// -//go:nosplit -func (tupleElementMapper) linkerFor(elem *tuple) *tuple { return elem } - -// List is an intrusive list. Entries can be added to or removed from the list -// in O(1) time and with no additional memory allocations. -// -// The zero value for List is an empty list ready to use. -// -// To iterate over a list (where l is a List): -// -// for e := l.Front(); e != nil; e = e.Next() { -// // do something with e. -// } -// -// +stateify savable -type tupleList struct { - head *tuple - tail *tuple -} - -// Reset resets list l to the empty state. -func (l *tupleList) Reset() { - l.head = nil - l.tail = nil -} - -// Empty returns true iff the list is empty. -// -//go:nosplit -func (l *tupleList) Empty() bool { - return l.head == nil -} - -// Front returns the first element of list l or nil. -// -//go:nosplit -func (l *tupleList) Front() *tuple { - return l.head -} - -// Back returns the last element of list l or nil. -// -//go:nosplit -func (l *tupleList) Back() *tuple { - return l.tail -} - -// Len returns the number of elements in the list. -// -// NOTE: This is an O(n) operation. -// -//go:nosplit -func (l *tupleList) Len() (count int) { - for e := l.Front(); e != nil; e = (tupleElementMapper{}.linkerFor(e)).Next() { - count++ - } - return count -} - -// PushFront inserts the element e at the front of list l. -// -//go:nosplit -func (l *tupleList) PushFront(e *tuple) { - linker := tupleElementMapper{}.linkerFor(e) - linker.SetNext(l.head) - linker.SetPrev(nil) - if l.head != nil { - tupleElementMapper{}.linkerFor(l.head).SetPrev(e) - } else { - l.tail = e - } - - l.head = e -} - -// PushFrontList inserts list m at the start of list l, emptying m. -// -//go:nosplit -func (l *tupleList) PushFrontList(m *tupleList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - tupleElementMapper{}.linkerFor(l.head).SetPrev(m.tail) - tupleElementMapper{}.linkerFor(m.tail).SetNext(l.head) - - l.head = m.head - } - m.head = nil - m.tail = nil -} - -// PushBack inserts the element e at the back of list l. -// -//go:nosplit -func (l *tupleList) PushBack(e *tuple) { - linker := tupleElementMapper{}.linkerFor(e) - linker.SetNext(nil) - linker.SetPrev(l.tail) - if l.tail != nil { - tupleElementMapper{}.linkerFor(l.tail).SetNext(e) - } else { - l.head = e - } - - l.tail = e -} - -// PushBackList inserts list m at the end of list l, emptying m. -// -//go:nosplit -func (l *tupleList) PushBackList(m *tupleList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - tupleElementMapper{}.linkerFor(l.tail).SetNext(m.head) - tupleElementMapper{}.linkerFor(m.head).SetPrev(l.tail) - - l.tail = m.tail - } - m.head = nil - m.tail = nil -} - -// InsertAfter inserts e after b. -// -//go:nosplit -func (l *tupleList) InsertAfter(b, e *tuple) { - bLinker := tupleElementMapper{}.linkerFor(b) - eLinker := tupleElementMapper{}.linkerFor(e) - - a := bLinker.Next() - - eLinker.SetNext(a) - eLinker.SetPrev(b) - bLinker.SetNext(e) - - if a != nil { - tupleElementMapper{}.linkerFor(a).SetPrev(e) - } else { - l.tail = e - } -} - -// InsertBefore inserts e before a. -// -//go:nosplit -func (l *tupleList) InsertBefore(a, e *tuple) { - aLinker := tupleElementMapper{}.linkerFor(a) - eLinker := tupleElementMapper{}.linkerFor(e) - - b := aLinker.Prev() - eLinker.SetNext(a) - eLinker.SetPrev(b) - aLinker.SetPrev(e) - - if b != nil { - tupleElementMapper{}.linkerFor(b).SetNext(e) - } else { - l.head = e - } -} - -// Remove removes e from l. -// -//go:nosplit -func (l *tupleList) Remove(e *tuple) { - linker := tupleElementMapper{}.linkerFor(e) - prev := linker.Prev() - next := linker.Next() - - if prev != nil { - tupleElementMapper{}.linkerFor(prev).SetNext(next) - } else if l.head == e { - l.head = next - } - - if next != nil { - tupleElementMapper{}.linkerFor(next).SetPrev(prev) - } else if l.tail == e { - l.tail = prev - } - - linker.SetNext(nil) - linker.SetPrev(nil) -} - -// Entry is a default implementation of Linker. Users can add anonymous fields -// of this type to their structs to make them automatically implement the -// methods needed by List. -// -// +stateify savable -type tupleEntry struct { - next *tuple - prev *tuple -} - -// Next returns the entry that follows e in the list. -// -//go:nosplit -func (e *tupleEntry) Next() *tuple { - return e.next -} - -// Prev returns the entry that precedes e in the list. -// -//go:nosplit -func (e *tupleEntry) Prev() *tuple { - return e.prev -} - -// SetNext assigns 'entry' as the entry that follows e in the list. -// -//go:nosplit -func (e *tupleEntry) SetNext(elem *tuple) { - e.next = elem -} - -// SetPrev assigns 'entry' as the entry that precedes e in the list. -// -//go:nosplit -func (e *tupleEntry) SetPrev(elem *tuple) { - e.prev = elem -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stdclock.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stdclock.go deleted file mode 100644 index e80e7c4b1c..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stdclock.go +++ /dev/null @@ -1,114 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcpip - -import ( - "fmt" - "time" -) - -// stdClock implements Clock with the time package. -// -// +stateify savable -type stdClock struct { - // baseTime holds the time when the clock was constructed. - // - // This value is used to calculate the monotonic time from the time package. - // As per https://golang.org/pkg/time/#hdr-Monotonic_Clocks, - // - // Operating systems provide both a “wall clock,” which is subject to - // changes for clock synchronization, and a “monotonic clock,” which is not. - // The general rule is that the wall clock is for telling time and the - // monotonic clock is for measuring time. Rather than split the API, in this - // package the Time returned by time.Now contains both a wall clock reading - // and a monotonic clock reading; later time-telling operations use the wall - // clock reading, but later time-measuring operations, specifically - // comparisons and subtractions, use the monotonic clock reading. - // - // ... - // - // If Times t and u both contain monotonic clock readings, the operations - // t.After(u), t.Before(u), t.Equal(u), and t.Sub(u) are carried out using - // the monotonic clock readings alone, ignoring the wall clock readings. If - // either t or u contains no monotonic clock reading, these operations fall - // back to using the wall clock readings. - // - // Given the above, we can safely conclude that time.Since(baseTime) will - // return monotonically increasing values if we use time.Now() to set baseTime - // at the time of clock construction. - // - // Note that time.Since(t) is shorthand for time.Now().Sub(t), as per - // https://golang.org/pkg/time/#Since. - baseTime time.Time `state:"nosave"` - - // monotonicOffset is the offset applied to the calculated monotonic time. - // - // monotonicOffset is assigned after restore so that the monotonic time - // will continue from where it "left off" before saving as part of S/R. - monotonicOffset MonotonicTime -} - -// NewStdClock returns an instance of a clock that uses the time package. -func NewStdClock() Clock { - return &stdClock{ - baseTime: time.Now(), - } -} - -var _ Clock = (*stdClock)(nil) - -// Now implements Clock.Now. -func (*stdClock) Now() time.Time { - return time.Now() -} - -// NowMonotonic implements Clock.NowMonotonic. -func (s *stdClock) NowMonotonic() MonotonicTime { - sinceBase := time.Since(s.baseTime) - if sinceBase < 0 { - panic(fmt.Sprintf("got negative duration = %s since base time = %s", sinceBase, s.baseTime)) - } - - return s.monotonicOffset.Add(sinceBase) -} - -// AfterFunc implements Clock.AfterFunc. -func (*stdClock) AfterFunc(d time.Duration, f func()) Timer { - return &stdTimer{ - t: time.AfterFunc(d, f), - } -} - -// +stateify savable -type stdTimer struct { - t *time.Timer -} - -var _ Timer = (*stdTimer)(nil) - -// Stop implements Timer.Stop. -func (st *stdTimer) Stop() bool { - return st.t.Stop() -} - -// Reset implements Timer.Reset. -func (st *stdTimer) Reset(d time.Duration) { - st.t.Reset(d) -} - -// NewStdTimer returns a Timer implemented with the time package. -func NewStdTimer(t *time.Timer) Timer { - return &stdTimer{t: t} -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/stdclock_state.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/stdclock_state.go deleted file mode 100644 index 530b46ecf6..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/stdclock_state.go +++ /dev/null @@ -1,30 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcpip - -import ( - "context" - "time" -) - -// beforeSave is invoked by stateify. -func (s *stdClock) beforeSave() { - s.monotonicOffset = s.NowMonotonic() -} - -// afterLoad is invoked by stateify. -func (s *stdClock) afterLoad(context.Context) { - s.baseTime = time.Now() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/tcpip.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/tcpip.go deleted file mode 100644 index b89481733f..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/tcpip.go +++ /dev/null @@ -1,2862 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package tcpip provides the interfaces and related types that users of the -// tcpip stack will use in order to create endpoints used to send and receive -// data over the network stack. -// -// The starting point is the creation and configuration of a stack. A stack can -// be created by calling the New() function of the tcpip/stack/stack package; -// configuring a stack involves creating NICs (via calls to Stack.CreateNIC()), -// adding network addresses (via calls to Stack.AddProtocolAddress()), and -// setting a route table (via a call to Stack.SetRouteTable()). -// -// Once a stack is configured, endpoints can be created by calling -// Stack.NewEndpoint(). Such endpoints can be used to send/receive data, connect -// to peers, listen for connections, accept connections, etc., depending on the -// transport protocol selected. -package tcpip - -import ( - "bytes" - "errors" - "fmt" - "io" - "math" - "math/bits" - "math/rand" - "net" - "reflect" - "strconv" - "strings" - "time" - - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/waiter" -) - -// Using the header package here would cause an import cycle. -const ( - ipv4AddressSize = 4 - ipv4ProtocolNumber = 0x0800 - ipv6AddressSize = 16 - ipv6ProtocolNumber = 0x86dd -) - -const ( - // LinkAddressSize is the size of a MAC address. - LinkAddressSize = 6 -) - -// Known IP address. -var ( - IPv4Zero = []byte{0, 0, 0, 0} - IPv6Zero = []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} -) - -// Errors related to Subnet -var ( - errSubnetLengthMismatch = errors.New("subnet length of address and mask differ") - errSubnetAddressMasked = errors.New("subnet address has bits set outside the mask") -) - -// ErrSaveRejection indicates a failed save due to unsupported networking state. -// This type of errors is only used for save logic. -type ErrSaveRejection struct { - Err error -} - -// Error returns a sensible description of the save rejection error. -func (e *ErrSaveRejection) Error() string { - return "save rejected due to unsupported networking state: " + e.Err.Error() -} - -// MonotonicTime is a monotonic clock reading. -// -// +stateify savable -type MonotonicTime struct { - nanoseconds int64 -} - -// String implements Stringer. -func (mt MonotonicTime) String() string { - return strconv.FormatInt(mt.nanoseconds, 10) -} - -// MonotonicTimeInfinite returns the monotonic timestamp as far away in the -// future as possible. -func MonotonicTimeInfinite() MonotonicTime { - return MonotonicTime{nanoseconds: math.MaxInt64} -} - -// Before reports whether the monotonic clock reading mt is before u. -func (mt MonotonicTime) Before(u MonotonicTime) bool { - return mt.nanoseconds < u.nanoseconds -} - -// After reports whether the monotonic clock reading mt is after u. -func (mt MonotonicTime) After(u MonotonicTime) bool { - return mt.nanoseconds > u.nanoseconds -} - -// Add returns the monotonic clock reading mt+d. -func (mt MonotonicTime) Add(d time.Duration) MonotonicTime { - return MonotonicTime{ - nanoseconds: time.Unix(0, mt.nanoseconds).Add(d).Sub(time.Unix(0, 0)).Nanoseconds(), - } -} - -// Sub returns the duration mt-u. If the result exceeds the maximum (or minimum) -// value that can be stored in a Duration, the maximum (or minimum) duration -// will be returned. To compute t-d for a duration d, use t.Add(-d). -func (mt MonotonicTime) Sub(u MonotonicTime) time.Duration { - return time.Unix(0, mt.nanoseconds).Sub(time.Unix(0, u.nanoseconds)) -} - -// Milliseconds returns the time in milliseconds. -func (mt MonotonicTime) Milliseconds() int64 { - return mt.nanoseconds / 1e6 -} - -// A Clock provides the current time and schedules work for execution. -// -// Times returned by a Clock should always be used for application-visible -// time. Only monotonic times should be used for netstack internal timekeeping. -type Clock interface { - // Now returns the current local time. - Now() time.Time - - // NowMonotonic returns the current monotonic clock reading. - NowMonotonic() MonotonicTime - - // AfterFunc waits for the duration to elapse and then calls f in its own - // goroutine. It returns a Timer that can be used to cancel the call using - // its Stop method. - AfterFunc(d time.Duration, f func()) Timer -} - -// Timer represents a single event. A Timer must be created with -// Clock.AfterFunc. -type Timer interface { - // Stop prevents the Timer from firing. It returns true if the call stops the - // timer, false if the timer has already expired or been stopped. - // - // If Stop returns false, then the timer has already expired and the function - // f of Clock.AfterFunc(d, f) has been started in its own goroutine; Stop - // does not wait for f to complete before returning. If the caller needs to - // know whether f is completed, it must coordinate with f explicitly. - Stop() bool - - // Reset changes the timer to expire after duration d. - // - // Reset should be invoked only on stopped or expired timers. If the timer is - // known to have expired, Reset can be used directly. Otherwise, the caller - // must coordinate with the function f of Clock.AfterFunc(d, f). - Reset(d time.Duration) -} - -// Address is a byte slice cast as a string that represents the address of a -// network node. Or, in the case of unix endpoints, it may represent a path. -// -// +stateify savable -type Address struct { - addr [16]byte - length int -} - -// AddrFrom4 converts addr to an Address. -func AddrFrom4(addr [4]byte) Address { - ret := Address{ - length: 4, - } - // It's guaranteed that copy will return 4. - copy(ret.addr[:], addr[:]) - return ret -} - -// AddrFrom4Slice converts addr to an Address. It panics if len(addr) != 4. -func AddrFrom4Slice(addr []byte) Address { - if len(addr) != 4 { - panic(fmt.Sprintf("bad address length for address %v", addr)) - } - ret := Address{ - length: 4, - } - // It's guaranteed that copy will return 4. - copy(ret.addr[:], addr) - return ret -} - -// AddrFrom16 converts addr to an Address. -func AddrFrom16(addr [16]byte) Address { - ret := Address{ - length: 16, - } - // It's guaranteed that copy will return 16. - copy(ret.addr[:], addr[:]) - return ret -} - -// AddrFrom16Slice converts addr to an Address. It panics if len(addr) != 16. -func AddrFrom16Slice(addr []byte) Address { - if len(addr) != 16 { - panic(fmt.Sprintf("bad address length for address %v", addr)) - } - ret := Address{ - length: 16, - } - // It's guaranteed that copy will return 16. - copy(ret.addr[:], addr) - return ret -} - -// AddrFromSlice converts addr to an Address. It returns the Address zero value -// if len(addr) != 4 or 16. -func AddrFromSlice(addr []byte) Address { - switch len(addr) { - case ipv4AddressSize: - return AddrFrom4Slice(addr) - case ipv6AddressSize: - return AddrFrom16Slice(addr) - } - return Address{} -} - -// As4 returns a as a 4 byte array. It panics if the address length is not 4. -func (a Address) As4() [4]byte { - if a.Len() != 4 { - panic(fmt.Sprintf("bad address length for address %v", a.addr)) - } - return [4]byte(a.addr[:4]) -} - -// As16 returns a as a 16 byte array. It panics if the address length is not 16. -func (a Address) As16() [16]byte { - if a.Len() != 16 { - panic(fmt.Sprintf("bad address length for address %v", a.addr)) - } - return [16]byte(a.addr[:16]) -} - -// AsSlice returns a as a byte slice. Callers should be careful as it can -// return a window into existing memory. -// -// +checkescape -func (a *Address) AsSlice() []byte { - return a.addr[:a.length] -} - -// BitLen returns the length in bits of a. -func (a Address) BitLen() int { - return a.Len() * 8 -} - -// Len returns the length in bytes of a. -func (a Address) Len() int { - return a.length -} - -// WithPrefix returns the address with a prefix that represents a point subnet. -func (a Address) WithPrefix() AddressWithPrefix { - return AddressWithPrefix{ - Address: a, - PrefixLen: a.BitLen(), - } -} - -// Unspecified returns true if the address is unspecified. -func (a Address) Unspecified() bool { - for _, b := range a.addr { - if b != 0 { - return false - } - } - return true -} - -// Equal returns whether a and other are equal. It exists for use by the cmp -// library. -func (a Address) Equal(other Address) bool { - return a == other -} - -// MatchingPrefix returns the matching prefix length in bits. -// -// Panics if b and a have different lengths. -func (a Address) MatchingPrefix(b Address) uint8 { - const bitsInAByte = 8 - - if a.Len() != b.Len() { - panic(fmt.Sprintf("addresses %s and %s do not have the same length", a, b)) - } - - var prefix uint8 - for i := 0; i < a.length; i++ { - aByte := a.addr[i] - bByte := b.addr[i] - - if aByte == bByte { - prefix += bitsInAByte - continue - } - - // Count the remaining matching bits in the byte from MSbit to LSBbit. - mask := uint8(1) << (bitsInAByte - 1) - for { - if aByte&mask == bByte&mask { - prefix++ - mask >>= 1 - continue - } - - break - } - - break - } - - return prefix -} - -// AddressMask is a bitmask for an address. -// -// +stateify savable -type AddressMask struct { - mask [16]byte - length int -} - -// MaskFrom returns a Mask based on str. -// -// MaskFrom may allocate, and so should not be in hot paths. -func MaskFrom(str string) AddressMask { - mask := AddressMask{length: len(str)} - copy(mask.mask[:], str) - return mask -} - -// MaskFromBytes returns a Mask based on bs. -func MaskFromBytes(bs []byte) AddressMask { - mask := AddressMask{length: len(bs)} - copy(mask.mask[:], bs) - return mask -} - -// String implements Stringer. -func (m AddressMask) String() string { - return fmt.Sprintf("%x", m.mask) -} - -// AsSlice returns a as a byte slice. Callers should be careful as it can -// return a window into existing memory. -func (m *AddressMask) AsSlice() []byte { - return []byte(m.mask[:m.length]) -} - -// BitLen returns the length of the mask in bits. -func (m AddressMask) BitLen() int { - return m.length * 8 -} - -// Len returns the length of the mask in bytes. -func (m AddressMask) Len() int { - return m.length -} - -// Prefix returns the number of bits before the first host bit. -func (m AddressMask) Prefix() int { - p := 0 - for _, b := range m.mask[:m.length] { - p += bits.LeadingZeros8(^b) - } - return p -} - -// Equal returns whether m and other are equal. It exists for use by the cmp -// library. -func (m AddressMask) Equal(other AddressMask) bool { - return m == other -} - -// Subnet is a subnet defined by its address and mask. -// -// +stateify savable -type Subnet struct { - address Address - mask AddressMask -} - -// NewSubnet creates a new Subnet, checking that the address and mask are the same length. -func NewSubnet(a Address, m AddressMask) (Subnet, error) { - if a.Len() != m.Len() { - return Subnet{}, errSubnetLengthMismatch - } - for i := 0; i < a.Len(); i++ { - if a.addr[i]&^m.mask[i] != 0 { - return Subnet{}, errSubnetAddressMasked - } - } - return Subnet{a, m}, nil -} - -// String implements Stringer. -func (s Subnet) String() string { - return fmt.Sprintf("%s/%d", s.ID(), s.Prefix()) -} - -// Contains returns true iff the address is of the same length and matches the -// subnet address and mask. -func (s *Subnet) Contains(a Address) bool { - if a.Len() != s.address.Len() { - return false - } - for i := 0; i < a.Len(); i++ { - if a.addr[i]&s.mask.mask[i] != s.address.addr[i] { - return false - } - } - return true -} - -// ID returns the subnet ID. -func (s *Subnet) ID() Address { - return s.address -} - -// Bits returns the number of ones (network bits) and zeros (host bits) in the -// subnet mask. -func (s *Subnet) Bits() (ones int, zeros int) { - ones = s.mask.Prefix() - return ones, s.mask.BitLen() - ones -} - -// Prefix returns the number of bits before the first host bit. -func (s *Subnet) Prefix() int { - return s.mask.Prefix() -} - -// Mask returns the subnet mask. -func (s *Subnet) Mask() AddressMask { - return s.mask -} - -// Broadcast returns the subnet's broadcast address. -func (s *Subnet) Broadcast() Address { - addrCopy := s.address - for i := 0; i < addrCopy.Len(); i++ { - addrCopy.addr[i] |= ^s.mask.mask[i] - } - return addrCopy -} - -// IsBroadcast returns true if the address is considered a broadcast address. -func (s *Subnet) IsBroadcast(address Address) bool { - // Only IPv4 supports the notion of a broadcast address. - if address.Len() != ipv4AddressSize { - return false - } - - // Normally, we would just compare address with the subnet's broadcast - // address but there is an exception where a simple comparison is not - // correct. This exception is for /31 and /32 IPv4 subnets where all - // addresses are considered valid host addresses. - // - // For /31 subnets, the case is easy. RFC 3021 Section 2.1 states that - // both addresses in a /31 subnet "MUST be interpreted as host addresses." - // - // For /32, the case is a bit more vague. RFC 3021 makes no mention of /32 - // subnets. However, the same reasoning applies - if an exception is not - // made, then there do not exist any host addresses in a /32 subnet. RFC - // 4632 Section 3.1 also vaguely implies this interpretation by referring - // to addresses in /32 subnets as "host routes." - return s.Prefix() <= 30 && s.Broadcast() == address -} - -// Equal returns true if this Subnet is equal to the given Subnet. -func (s Subnet) Equal(o Subnet) bool { - // If this changes, update Route.Equal accordingly. - return s == o -} - -// NICID is a number that uniquely identifies a NIC. -type NICID int32 - -// ShutdownFlags represents flags that can be passed to the Shutdown() method -// of the Endpoint interface. -type ShutdownFlags int - -// Values of the flags that can be passed to the Shutdown() method. They can -// be OR'ed together. -const ( - ShutdownRead ShutdownFlags = 1 << iota - ShutdownWrite -) - -// PacketType is used to indicate the destination of the packet. -type PacketType uint8 - -const ( - // PacketHost indicates a packet addressed to the local host. - PacketHost PacketType = iota - - // PacketOtherHost indicates an outgoing packet addressed to - // another host caught by a NIC in promiscuous mode. - PacketOtherHost - - // PacketOutgoing for a packet originating from the local host - // that is looped back to a packet socket. - PacketOutgoing - - // PacketBroadcast indicates a link layer broadcast packet. - PacketBroadcast - - // PacketMulticast indicates a link layer multicast packet. - PacketMulticast -) - -// FullAddress represents a full transport node address, as required by the -// Connect() and Bind() methods. -// -// +stateify savable -type FullAddress struct { - // NIC is the ID of the NIC this address refers to. - // - // This may not be used by all endpoint types. - NIC NICID - - // Addr is the network address. - Addr Address - - // Port is the transport port. - // - // This may not be used by all endpoint types. - Port uint16 - - // LinkAddr is the link layer address. - LinkAddr LinkAddress -} - -// Payloader is an interface that provides data. -// -// This interface allows the endpoint to request the amount of data it needs -// based on internal buffers without exposing them. -type Payloader interface { - io.Reader - - // Len returns the number of bytes of the unread portion of the - // Reader. - Len() int -} - -var _ Payloader = (*bytes.Buffer)(nil) -var _ Payloader = (*bytes.Reader)(nil) - -var _ io.Writer = (*SliceWriter)(nil) - -// SliceWriter implements io.Writer for slices. -type SliceWriter []byte - -// Write implements io.Writer.Write. -func (s *SliceWriter) Write(b []byte) (int, error) { - n := copy(*s, b) - *s = (*s)[n:] - var err error - if n != len(b) { - err = io.ErrShortWrite - } - return n, err -} - -var _ io.Writer = (*LimitedWriter)(nil) - -// A LimitedWriter writes to W but limits the amount of data copied to just N -// bytes. Each call to Write updates N to reflect the new amount remaining. -type LimitedWriter struct { - W io.Writer - N int64 -} - -func (l *LimitedWriter) Write(p []byte) (int, error) { - pLen := int64(len(p)) - if pLen > l.N { - p = p[:l.N] - } - n, err := l.W.Write(p) - n64 := int64(n) - if err == nil && n64 != pLen { - err = io.ErrShortWrite - } - l.N -= n64 - return n, err -} - -// SendableControlMessages contains socket control messages that can be written. -// -// +stateify savable -type SendableControlMessages struct { - // HasTTL indicates whether TTL is valid/set. - HasTTL bool - - // TTL is the IPv4 Time To Live of the associated packet. - TTL uint8 - - // HasHopLimit indicates whether HopLimit is valid/set. - HasHopLimit bool - - // HopLimit is the IPv6 Hop Limit of the associated packet. - HopLimit uint8 - - // HasIPv6PacketInfo indicates whether IPv6PacketInfo is set. - HasIPv6PacketInfo bool - - // IPv6PacketInfo holds interface and address data on an incoming packet. - IPv6PacketInfo IPv6PacketInfo -} - -// ReceivableControlMessages contains socket control messages that can be -// received. -// -// +stateify savable -type ReceivableControlMessages struct { - // Timestamp is the time that the last packet used to create the read data - // was received. - Timestamp time.Time `state:".(int64)"` - - // HasInq indicates whether Inq is valid/set. - HasInq bool - - // Inq is the number of bytes ready to be received. - Inq int32 - - // HasTOS indicates whether TOS is valid/set. - HasTOS bool - - // TOS is the IPv4 type of service of the associated packet. - TOS uint8 - - // HasTTL indicates whether TTL is valid/set. - HasTTL bool - - // TTL is the IPv4 Time To Live of the associated packet. - TTL uint8 - - // HasHopLimit indicates whether HopLimit is valid/set. - HasHopLimit bool - - // HopLimit is the IPv6 Hop Limit of the associated packet. - HopLimit uint8 - - // HasTimestamp indicates whether Timestamp is valid/set. - HasTimestamp bool - - // HasTClass indicates whether TClass is valid/set. - HasTClass bool - - // TClass is the IPv6 traffic class of the associated packet. - TClass uint32 - - // HasIPPacketInfo indicates whether PacketInfo is set. - HasIPPacketInfo bool - - // PacketInfo holds interface and address data on an incoming packet. - PacketInfo IPPacketInfo - - // HasIPv6PacketInfo indicates whether IPv6PacketInfo is set. - HasIPv6PacketInfo bool - - // IPv6PacketInfo holds interface and address data on an incoming packet. - IPv6PacketInfo IPv6PacketInfo - - // HasOriginalDestinationAddress indicates whether OriginalDstAddress is - // set. - HasOriginalDstAddress bool - - // OriginalDestinationAddress holds the original destination address - // and port of the incoming packet. - OriginalDstAddress FullAddress - - // SockErr is the dequeued socket error on recvmsg(MSG_ERRQUEUE). - SockErr *SockError -} - -// PacketOwner is used to get UID and GID of the packet. -type PacketOwner interface { - // KUID returns KUID of the packet. - KUID() uint32 - - // KGID returns KGID of the packet. - KGID() uint32 -} - -// ReadOptions contains options for Endpoint.Read. -type ReadOptions struct { - // Peek indicates whether this read is a peek. - Peek bool - - // NeedRemoteAddr indicates whether to return the remote address, if - // supported. - NeedRemoteAddr bool - - // NeedLinkPacketInfo indicates whether to return the link-layer information, - // if supported. - NeedLinkPacketInfo bool -} - -// ReadResult represents result for a successful Endpoint.Read. -type ReadResult struct { - // Count is the number of bytes received and written to the buffer. - Count int - - // Total is the number of bytes of the received packet. This can be used to - // determine whether the read is truncated. - Total int - - // ControlMessages is the control messages received. - ControlMessages ReceivableControlMessages - - // RemoteAddr is the remote address if ReadOptions.NeedAddr is true. - RemoteAddr FullAddress - - // LinkPacketInfo is the link-layer information of the received packet if - // ReadOptions.NeedLinkPacketInfo is true. - LinkPacketInfo LinkPacketInfo -} - -// Endpoint is the interface implemented by transport protocols (e.g., tcp, udp) -// that exposes functionality like read, write, connect, etc. to users of the -// networking stack. -type Endpoint interface { - // Close puts the endpoint in a closed state and frees all resources - // associated with it. Close initiates the teardown process, the - // Endpoint may not be fully closed when Close returns. - Close() - - // Abort initiates an expedited endpoint teardown. As compared to - // Close, Abort prioritizes closing the Endpoint quickly over cleanly. - // Abort is best effort; implementing Abort with Close is acceptable. - Abort() - - // Read reads data from the endpoint and optionally writes to dst. - // - // This method does not block if there is no data pending; in this case, - // ErrWouldBlock is returned. - // - // If non-zero number of bytes are successfully read and written to dst, err - // must be nil. Otherwise, if dst failed to write anything, ErrBadBuffer - // should be returned. - Read(io.Writer, ReadOptions) (ReadResult, Error) - - // Write writes data to the endpoint's peer. This method does not block if - // the data cannot be written. - // - // Unlike io.Writer.Write, Endpoint.Write transfers ownership of any bytes - // successfully written to the Endpoint. That is, if a call to - // Write(SlicePayload{data}) returns (n, err), it may retain data[:n], and - // the caller should not use data[:n] after Write returns. - // - // Note that unlike io.Writer.Write, it is not an error for Write to - // perform a partial write (if n > 0, no error may be returned). Only - // stream (TCP) Endpoints may return partial writes, and even then only - // in the case where writing additional data would block. Other Endpoints - // will either write the entire message or return an error. - Write(Payloader, WriteOptions) (int64, Error) - - // Connect connects the endpoint to its peer. Specifying a NIC is - // optional. - // - // There are three classes of return values: - // nil -- the attempt to connect succeeded. - // ErrConnectStarted/ErrAlreadyConnecting -- the connect attempt started - // but hasn't completed yet. In this case, the caller must call Connect - // or GetSockOpt(ErrorOption) when the endpoint becomes writable to - // get the actual result. The first call to Connect after the socket has - // connected returns nil. Calling connect again results in ErrAlreadyConnected. - // Anything else -- the attempt to connect failed. - // - // If address.Addr is empty, this means that Endpoint has to be - // disconnected if this is supported, otherwise - // ErrAddressFamilyNotSupported must be returned. - Connect(address FullAddress) Error - - // Disconnect disconnects the endpoint from its peer. - Disconnect() Error - - // Shutdown closes the read and/or write end of the endpoint connection - // to its peer. - Shutdown(flags ShutdownFlags) Error - - // Listen puts the endpoint in "listen" mode, which allows it to accept - // new connections. - Listen(backlog int) Error - - // Accept returns a new endpoint if a peer has established a connection - // to an endpoint previously set to listen mode. This method does not - // block if no new connections are available. - // - // The returned Queue is the wait queue for the newly created endpoint. - // - // If peerAddr is not nil then it is populated with the peer address of the - // returned endpoint. - Accept(peerAddr *FullAddress) (Endpoint, *waiter.Queue, Error) - - // Bind binds the endpoint to a specific local address and port. - // Specifying a NIC is optional. - Bind(address FullAddress) Error - - // GetLocalAddress returns the address to which the endpoint is bound. - GetLocalAddress() (FullAddress, Error) - - // GetRemoteAddress returns the address to which the endpoint is - // connected. - GetRemoteAddress() (FullAddress, Error) - - // Readiness returns the current readiness of the endpoint. For example, - // if waiter.EventIn is set, the endpoint is immediately readable. - Readiness(mask waiter.EventMask) waiter.EventMask - - // SetSockOpt sets a socket option. - SetSockOpt(opt SettableSocketOption) Error - - // SetSockOptInt sets a socket option, for simple cases where a value - // has the int type. - SetSockOptInt(opt SockOptInt, v int) Error - - // GetSockOpt gets a socket option. - GetSockOpt(opt GettableSocketOption) Error - - // GetSockOptInt gets a socket option for simple cases where a return - // value has the int type. - GetSockOptInt(SockOptInt) (int, Error) - - // State returns a socket's lifecycle state. The returned value is - // protocol-specific and is primarily used for diagnostics. - State() uint32 - - // ModerateRecvBuf should be called everytime data is copied to the user - // space. This allows for dynamic tuning of recv buffer space for a - // given socket. - // - // NOTE: This method is a no-op for sockets other than TCP. - ModerateRecvBuf(copied int) - - // Info returns a copy to the transport endpoint info. - Info() EndpointInfo - - // Stats returns a reference to the endpoint stats. - Stats() EndpointStats - - // SetOwner sets the task owner to the endpoint owner. - SetOwner(owner PacketOwner) - - // LastError clears and returns the last error reported by the endpoint. - LastError() Error - - // SocketOptions returns the structure which contains all the socket - // level options. - SocketOptions() *SocketOptions -} - -// EndpointWithPreflight is the interface implemented by endpoints that need -// to expose the `Preflight` method for preparing the endpoint prior to -// calling `Write`. -type EndpointWithPreflight interface { - // Prepares the endpoint for writes using the provided WriteOptions, - // returning an error if the options were incompatible with the endpoint's - // current state. - Preflight(WriteOptions) Error -} - -// LinkPacketInfo holds Link layer information for a received packet. -// -// +stateify savable -type LinkPacketInfo struct { - // Protocol is the NetworkProtocolNumber for the packet. - Protocol NetworkProtocolNumber - - // PktType is used to indicate the destination of the packet. - PktType PacketType -} - -// EndpointInfo is the interface implemented by each endpoint info struct. -type EndpointInfo interface { - // IsEndpointInfo is an empty method to implement the tcpip.EndpointInfo - // marker interface. - IsEndpointInfo() -} - -// EndpointStats is the interface implemented by each endpoint stats struct. -type EndpointStats interface { - // IsEndpointStats is an empty method to implement the tcpip.EndpointStats - // marker interface. - IsEndpointStats() -} - -// WriteOptions contains options for Endpoint.Write. -type WriteOptions struct { - // If To is not nil, write to the given address instead of the endpoint's - // peer. - To *FullAddress - - // More has the same semantics as Linux's MSG_MORE. - More bool - - // EndOfRecord has the same semantics as Linux's MSG_EOR. - EndOfRecord bool - - // Atomic means that all data fetched from Payloader must be written to the - // endpoint. If Atomic is false, then data fetched from the Payloader may be - // discarded if available endpoint buffer space is insufficient. - Atomic bool - - // ControlMessages contains optional overrides used when writing a packet. - ControlMessages SendableControlMessages -} - -// SockOptInt represents socket options which values have the int type. -type SockOptInt int - -const ( - // KeepaliveCountOption is used by SetSockOptInt/GetSockOptInt to - // specify the number of un-ACKed TCP keepalives that will be sent - // before the connection is closed. - KeepaliveCountOption SockOptInt = iota - - // IPv4TOSOption is used by SetSockOptInt/GetSockOptInt to specify TOS - // for all subsequent outgoing IPv4 packets from the endpoint. - IPv4TOSOption - - // IPv6TrafficClassOption is used by SetSockOptInt/GetSockOptInt to - // specify TOS for all subsequent outgoing IPv6 packets from the - // endpoint. - IPv6TrafficClassOption - - // MaxSegOption is used by SetSockOptInt/GetSockOptInt to set/get the - // current Maximum Segment Size(MSS) value as specified using the - // TCP_MAXSEG option. - MaxSegOption - - // MTUDiscoverOption is used to set/get the path MTU discovery setting. - // - // NOTE: Setting this option to any other value than PMTUDiscoveryDont - // is not supported and will fail as such, and getting this option will - // always return PMTUDiscoveryDont. - MTUDiscoverOption - - // MulticastTTLOption is used by SetSockOptInt/GetSockOptInt to control - // the default TTL value for multicast messages. The default is 1. - MulticastTTLOption - - // ReceiveQueueSizeOption is used in GetSockOptInt to specify that the - // number of unread bytes in the input buffer should be returned. - ReceiveQueueSizeOption - - // SendQueueSizeOption is used in GetSockOptInt to specify that the - // number of unread bytes in the output buffer should be returned. - SendQueueSizeOption - - // IPv4TTLOption is used by SetSockOptInt/GetSockOptInt to control the default - // TTL value for unicast messages. - // - // The default is configured by DefaultTTLOption. A UseDefaultIPv4TTL value - // configures the endpoint to use the default. - IPv4TTLOption - - // IPv6HopLimitOption is used by SetSockOptInt/GetSockOptInt to control the - // default hop limit value for unicast messages. - // - // The default is configured by DefaultTTLOption. A UseDefaultIPv6HopLimit - // value configures the endpoint to use the default. - IPv6HopLimitOption - - // TCPSynCountOption is used by SetSockOptInt/GetSockOptInt to specify - // the number of SYN retransmits that TCP should send before aborting - // the attempt to connect. It cannot exceed 255. - // - // NOTE: This option is currently only stubbed out and is no-op. - TCPSynCountOption - - // TCPWindowClampOption is used by SetSockOptInt/GetSockOptInt to bound - // the size of the advertised window to this value. - // - // NOTE: This option is currently only stubed out and is a no-op - TCPWindowClampOption - - // IPv6Checksum is used to request the stack to populate and validate the IPv6 - // checksum for transport level headers. - IPv6Checksum -) - -const ( - // UseDefaultIPv4TTL is the IPv4TTLOption value that configures an endpoint to - // use the default ttl currently configured by the IPv4 protocol (see - // DefaultTTLOption). - UseDefaultIPv4TTL = 0 - - // UseDefaultIPv6HopLimit is the IPv6HopLimitOption value that configures an - // endpoint to use the default hop limit currently configured by the IPv6 - // protocol (see DefaultTTLOption). - UseDefaultIPv6HopLimit = -1 -) - -// PMTUDStrategy is the kind of PMTUD to perform. -type PMTUDStrategy int - -const ( - // PMTUDiscoveryWant is a setting of the MTUDiscoverOption to use - // per-route settings. - PMTUDiscoveryWant PMTUDStrategy = iota - - // PMTUDiscoveryDont is a setting of the MTUDiscoverOption to disable - // path MTU discovery. - PMTUDiscoveryDont - - // PMTUDiscoveryDo is a setting of the MTUDiscoverOption to always do - // path MTU discovery. - PMTUDiscoveryDo - - // PMTUDiscoveryProbe is a setting of the MTUDiscoverOption to set DF - // but ignore path MTU. - PMTUDiscoveryProbe -) - -// GettableNetworkProtocolOption is a marker interface for network protocol -// options that may be queried. -type GettableNetworkProtocolOption interface { - isGettableNetworkProtocolOption() -} - -// SettableNetworkProtocolOption is a marker interface for network protocol -// options that may be set. -type SettableNetworkProtocolOption interface { - isSettableNetworkProtocolOption() -} - -// DefaultTTLOption is used by stack.(*Stack).NetworkProtocolOption to specify -// a default TTL. -type DefaultTTLOption uint8 - -func (*DefaultTTLOption) isGettableNetworkProtocolOption() {} - -func (*DefaultTTLOption) isSettableNetworkProtocolOption() {} - -// GettableTransportProtocolOption is a marker interface for transport protocol -// options that may be queried. -type GettableTransportProtocolOption interface { - isGettableTransportProtocolOption() -} - -// SettableTransportProtocolOption is a marker interface for transport protocol -// options that may be set. -type SettableTransportProtocolOption interface { - isSettableTransportProtocolOption() -} - -// TCPSACKEnabled the SACK option for TCP. -// -// See: https://tools.ietf.org/html/rfc2018. -type TCPSACKEnabled bool - -func (*TCPSACKEnabled) isGettableTransportProtocolOption() {} - -func (*TCPSACKEnabled) isSettableTransportProtocolOption() {} - -// TCPRecovery is the loss deteoction algorithm used by TCP. -type TCPRecovery int32 - -func (*TCPRecovery) isGettableTransportProtocolOption() {} - -func (*TCPRecovery) isSettableTransportProtocolOption() {} - -// TCPAlwaysUseSynCookies indicates unconditional usage of syncookies. -type TCPAlwaysUseSynCookies bool - -func (*TCPAlwaysUseSynCookies) isGettableTransportProtocolOption() {} - -func (*TCPAlwaysUseSynCookies) isSettableTransportProtocolOption() {} - -const ( - // TCPRACKLossDetection indicates RACK is used for loss detection and - // recovery. - TCPRACKLossDetection TCPRecovery = 1 << iota - - // TCPRACKStaticReoWnd indicates the reordering window should not be - // adjusted when DSACK is received. - TCPRACKStaticReoWnd - - // TCPRACKNoDupTh indicates RACK should not consider the classic three - // duplicate acknowledgements rule to mark the segments as lost. This - // is used when reordering is not detected. - TCPRACKNoDupTh -) - -// TCPDelayEnabled enables/disables Nagle's algorithm in TCP. -type TCPDelayEnabled bool - -func (*TCPDelayEnabled) isGettableTransportProtocolOption() {} - -func (*TCPDelayEnabled) isSettableTransportProtocolOption() {} - -// TCPSendBufferSizeRangeOption is the send buffer size range for TCP. -// -// +stateify savable -type TCPSendBufferSizeRangeOption struct { - Min int - Default int - Max int -} - -func (*TCPSendBufferSizeRangeOption) isGettableTransportProtocolOption() {} - -func (*TCPSendBufferSizeRangeOption) isSettableTransportProtocolOption() {} - -// TCPReceiveBufferSizeRangeOption is the receive buffer size range for TCP. -// -// +stateify savable -type TCPReceiveBufferSizeRangeOption struct { - Min int - Default int - Max int -} - -func (*TCPReceiveBufferSizeRangeOption) isGettableTransportProtocolOption() {} - -func (*TCPReceiveBufferSizeRangeOption) isSettableTransportProtocolOption() {} - -// TCPAvailableCongestionControlOption is the supported congestion control -// algorithms for TCP -type TCPAvailableCongestionControlOption string - -func (*TCPAvailableCongestionControlOption) isGettableTransportProtocolOption() {} - -func (*TCPAvailableCongestionControlOption) isSettableTransportProtocolOption() {} - -// TCPModerateReceiveBufferOption enables/disables receive buffer moderation -// for TCP. -type TCPModerateReceiveBufferOption bool - -func (*TCPModerateReceiveBufferOption) isGettableTransportProtocolOption() {} - -func (*TCPModerateReceiveBufferOption) isSettableTransportProtocolOption() {} - -// GettableSocketOption is a marker interface for socket options that may be -// queried. -type GettableSocketOption interface { - isGettableSocketOption() -} - -// SettableSocketOption is a marker interface for socket options that may be -// configured. -type SettableSocketOption interface { - isSettableSocketOption() -} - -// ICMPv6Filter specifies a filter for ICMPv6 types. -// -// +stateify savable -type ICMPv6Filter struct { - // DenyType indicates if an ICMP type should be blocked. - // - // The ICMPv6 type field is 8 bits so there are up to 256 different ICMPv6 - // types. - DenyType [8]uint32 -} - -// ShouldDeny returns true iff the ICMPv6 Type should be denied. -func (f *ICMPv6Filter) ShouldDeny(icmpType uint8) bool { - const bitsInUint32 = 32 - i := icmpType / bitsInUint32 - b := icmpType % bitsInUint32 - return f.DenyType[i]&(1< 0 { - _, _ = fmt.Fprintf(&out, " via %s", r.Gateway) - } - _, _ = fmt.Fprintf(&out, " nic %d", r.NIC) - return out.String() -} - -// Equal returns true if the given Route is equal to this Route. -func (r Route) Equal(to Route) bool { - // NOTE: This relies on the fact that r.Destination == to.Destination - return r.Destination.Equal(to.Destination) && r.NIC == to.NIC -} - -// TransportProtocolNumber is the number of a transport protocol. -type TransportProtocolNumber uint32 - -// NetworkProtocolNumber is the EtherType of a network protocol in an Ethernet -// frame. -// -// See: https://www.iana.org/assignments/ieee-802-numbers/ieee-802-numbers.xhtml -type NetworkProtocolNumber uint32 - -// A StatCounter keeps track of a statistic. -// -// +stateify savable -type StatCounter struct { - count atomicbitops.Uint64 -} - -// Increment adds one to the counter. -func (s *StatCounter) Increment() { - s.IncrementBy(1) -} - -// Decrement minuses one to the counter. -func (s *StatCounter) Decrement() { - s.IncrementBy(^uint64(0)) -} - -// Value returns the current value of the counter. -func (s *StatCounter) Value() uint64 { - return s.count.Load() -} - -// IncrementBy increments the counter by v. -func (s *StatCounter) IncrementBy(v uint64) { - s.count.Add(v) -} - -func (s *StatCounter) String() string { - return strconv.FormatUint(s.Value(), 10) -} - -// A MultiCounterStat keeps track of two counters at once. -// -// +stateify savable -type MultiCounterStat struct { - a *StatCounter - b *StatCounter -} - -// Init sets both internal counters to point to a and b. -func (m *MultiCounterStat) Init(a, b *StatCounter) { - m.a = a - m.b = b -} - -// Increment adds one to the counters. -func (m *MultiCounterStat) Increment() { - m.a.Increment() - m.b.Increment() -} - -// IncrementBy increments the counters by v. -func (m *MultiCounterStat) IncrementBy(v uint64) { - m.a.IncrementBy(v) - m.b.IncrementBy(v) -} - -// ICMPv4PacketStats enumerates counts for all ICMPv4 packet types. -// -// +stateify savable -type ICMPv4PacketStats struct { - // LINT.IfChange(ICMPv4PacketStats) - - // EchoRequest is the number of ICMPv4 echo packets counted. - EchoRequest *StatCounter - - // EchoReply is the number of ICMPv4 echo reply packets counted. - EchoReply *StatCounter - - // DstUnreachable is the number of ICMPv4 destination unreachable packets - // counted. - DstUnreachable *StatCounter - - // SrcQuench is the number of ICMPv4 source quench packets counted. - SrcQuench *StatCounter - - // Redirect is the number of ICMPv4 redirect packets counted. - Redirect *StatCounter - - // TimeExceeded is the number of ICMPv4 time exceeded packets counted. - TimeExceeded *StatCounter - - // ParamProblem is the number of ICMPv4 parameter problem packets counted. - ParamProblem *StatCounter - - // Timestamp is the number of ICMPv4 timestamp packets counted. - Timestamp *StatCounter - - // TimestampReply is the number of ICMPv4 timestamp reply packets counted. - TimestampReply *StatCounter - - // InfoRequest is the number of ICMPv4 information request packets counted. - InfoRequest *StatCounter - - // InfoReply is the number of ICMPv4 information reply packets counted. - InfoReply *StatCounter - - // LINT.ThenChange(network/ipv4/stats.go:multiCounterICMPv4PacketStats) -} - -// ICMPv4SentPacketStats collects outbound ICMPv4-specific stats. -// -// +stateify savable -type ICMPv4SentPacketStats struct { - // LINT.IfChange(ICMPv4SentPacketStats) - - ICMPv4PacketStats - - // Dropped is the number of ICMPv4 packets dropped due to link layer errors. - Dropped *StatCounter - - // RateLimited is the number of ICMPv4 packets dropped due to rate limit being - // exceeded. - RateLimited *StatCounter - - // LINT.ThenChange(network/ipv4/stats.go:multiCounterICMPv4SentPacketStats) -} - -// ICMPv4ReceivedPacketStats collects inbound ICMPv4-specific stats. -// -// +stateify savable -type ICMPv4ReceivedPacketStats struct { - // LINT.IfChange(ICMPv4ReceivedPacketStats) - - ICMPv4PacketStats - - // Invalid is the number of invalid ICMPv4 packets received. - Invalid *StatCounter - - // LINT.ThenChange(network/ipv4/stats.go:multiCounterICMPv4ReceivedPacketStats) -} - -// ICMPv4Stats collects ICMPv4-specific stats. -// -// +stateify savable -type ICMPv4Stats struct { - // LINT.IfChange(ICMPv4Stats) - - // PacketsSent contains statistics about sent packets. - PacketsSent ICMPv4SentPacketStats - - // PacketsReceived contains statistics about received packets. - PacketsReceived ICMPv4ReceivedPacketStats - - // LINT.ThenChange(network/ipv4/stats.go:multiCounterICMPv4Stats) -} - -// ICMPv6PacketStats enumerates counts for all ICMPv6 packet types. -// -// +stateify savable -type ICMPv6PacketStats struct { - // LINT.IfChange(ICMPv6PacketStats) - - // EchoRequest is the number of ICMPv6 echo request packets counted. - EchoRequest *StatCounter - - // EchoReply is the number of ICMPv6 echo reply packets counted. - EchoReply *StatCounter - - // DstUnreachable is the number of ICMPv6 destination unreachable packets - // counted. - DstUnreachable *StatCounter - - // PacketTooBig is the number of ICMPv6 packet too big packets counted. - PacketTooBig *StatCounter - - // TimeExceeded is the number of ICMPv6 time exceeded packets counted. - TimeExceeded *StatCounter - - // ParamProblem is the number of ICMPv6 parameter problem packets counted. - ParamProblem *StatCounter - - // RouterSolicit is the number of ICMPv6 router solicit packets counted. - RouterSolicit *StatCounter - - // RouterAdvert is the number of ICMPv6 router advert packets counted. - RouterAdvert *StatCounter - - // NeighborSolicit is the number of ICMPv6 neighbor solicit packets counted. - NeighborSolicit *StatCounter - - // NeighborAdvert is the number of ICMPv6 neighbor advert packets counted. - NeighborAdvert *StatCounter - - // RedirectMsg is the number of ICMPv6 redirect message packets counted. - RedirectMsg *StatCounter - - // MulticastListenerQuery is the number of Multicast Listener Query messages - // counted. - MulticastListenerQuery *StatCounter - - // MulticastListenerReport is the number of Multicast Listener Report messages - // counted. - MulticastListenerReport *StatCounter - - // MulticastListenerReportV2 is the number of Multicast Listener Report - // messages counted. - MulticastListenerReportV2 *StatCounter - - // MulticastListenerDone is the number of Multicast Listener Done messages - // counted. - MulticastListenerDone *StatCounter - - // LINT.ThenChange(network/ipv6/stats.go:multiCounterICMPv6PacketStats) -} - -// ICMPv6SentPacketStats collects outbound ICMPv6-specific stats. -// -// +stateify savable -type ICMPv6SentPacketStats struct { - // LINT.IfChange(ICMPv6SentPacketStats) - - ICMPv6PacketStats - - // Dropped is the number of ICMPv6 packets dropped due to link layer errors. - Dropped *StatCounter - - // RateLimited is the number of ICMPv6 packets dropped due to rate limit being - // exceeded. - RateLimited *StatCounter - - // LINT.ThenChange(network/ipv6/stats.go:multiCounterICMPv6SentPacketStats) -} - -// ICMPv6ReceivedPacketStats collects inbound ICMPv6-specific stats. -// -// +stateify savable -type ICMPv6ReceivedPacketStats struct { - // LINT.IfChange(ICMPv6ReceivedPacketStats) - - ICMPv6PacketStats - - // Unrecognized is the number of ICMPv6 packets received that the transport - // layer does not know how to parse. - Unrecognized *StatCounter - - // Invalid is the number of invalid ICMPv6 packets received. - Invalid *StatCounter - - // RouterOnlyPacketsDroppedByHost is the number of ICMPv6 packets dropped due - // to being router-specific packets. - RouterOnlyPacketsDroppedByHost *StatCounter - - // LINT.ThenChange(network/ipv6/stats.go:multiCounterICMPv6ReceivedPacketStats) -} - -// ICMPv6Stats collects ICMPv6-specific stats. -// -// +stateify savable -type ICMPv6Stats struct { - // LINT.IfChange(ICMPv6Stats) - - // PacketsSent contains statistics about sent packets. - PacketsSent ICMPv6SentPacketStats - - // PacketsReceived contains statistics about received packets. - PacketsReceived ICMPv6ReceivedPacketStats - - // LINT.ThenChange(network/ipv6/stats.go:multiCounterICMPv6Stats) -} - -// ICMPStats collects ICMP-specific stats (both v4 and v6). -// -// +stateify savable -type ICMPStats struct { - // V4 contains the ICMPv4-specifics stats. - V4 ICMPv4Stats - - // V6 contains the ICMPv4-specifics stats. - V6 ICMPv6Stats -} - -// IGMPPacketStats enumerates counts for all IGMP packet types. -// -// +stateify savable -type IGMPPacketStats struct { - // LINT.IfChange(IGMPPacketStats) - - // MembershipQuery is the number of Membership Query messages counted. - MembershipQuery *StatCounter - - // V1MembershipReport is the number of Version 1 Membership Report messages - // counted. - V1MembershipReport *StatCounter - - // V2MembershipReport is the number of Version 2 Membership Report messages - // counted. - V2MembershipReport *StatCounter - - // V3MembershipReport is the number of Version 3 Membership Report messages - // counted. - V3MembershipReport *StatCounter - - // LeaveGroup is the number of Leave Group messages counted. - LeaveGroup *StatCounter - - // LINT.ThenChange(network/ipv4/stats.go:multiCounterIGMPPacketStats) -} - -// IGMPSentPacketStats collects outbound IGMP-specific stats. -// -// +stateify savable -type IGMPSentPacketStats struct { - // LINT.IfChange(IGMPSentPacketStats) - - IGMPPacketStats - - // Dropped is the number of IGMP packets dropped. - Dropped *StatCounter - - // LINT.ThenChange(network/ipv4/stats.go:multiCounterIGMPSentPacketStats) -} - -// IGMPReceivedPacketStats collects inbound IGMP-specific stats. -// -// +stateify savable -type IGMPReceivedPacketStats struct { - // LINT.IfChange(IGMPReceivedPacketStats) - - IGMPPacketStats - - // Invalid is the number of invalid IGMP packets received. - Invalid *StatCounter - - // ChecksumErrors is the number of IGMP packets dropped due to bad checksums. - ChecksumErrors *StatCounter - - // Unrecognized is the number of unrecognized messages counted, these are - // silently ignored for forward-compatibility. - Unrecognized *StatCounter - - // LINT.ThenChange(network/ipv4/stats.go:multiCounterIGMPReceivedPacketStats) -} - -// IGMPStats collects IGMP-specific stats. -// -// +stateify savable -type IGMPStats struct { - // LINT.IfChange(IGMPStats) - - // PacketsSent contains statistics about sent packets. - PacketsSent IGMPSentPacketStats - - // PacketsReceived contains statistics about received packets. - PacketsReceived IGMPReceivedPacketStats - - // LINT.ThenChange(network/ipv4/stats.go:multiCounterIGMPStats) -} - -// IPForwardingStats collects stats related to IP forwarding (both v4 and v6). -// -// +stateify savable -type IPForwardingStats struct { - // LINT.IfChange(IPForwardingStats) - - // Unrouteable is the number of IP packets received which were dropped - // because a route to their destination could not be constructed. - Unrouteable *StatCounter - - // ExhaustedTTL is the number of IP packets received which were dropped - // because their TTL was exhausted. - ExhaustedTTL *StatCounter - - // InitializingSource is the number of IP packets which were dropped - // because they contained a source address that may only be used on the local - // network as part of initialization work. - InitializingSource *StatCounter - - // LinkLocalSource is the number of IP packets which were dropped - // because they contained a link-local source address. - LinkLocalSource *StatCounter - - // LinkLocalDestination is the number of IP packets which were dropped - // because they contained a link-local destination address. - LinkLocalDestination *StatCounter - - // PacketTooBig is the number of IP packets which were dropped because they - // were too big for the outgoing MTU. - PacketTooBig *StatCounter - - // HostUnreachable is the number of IP packets received which could not be - // successfully forwarded due to an unresolvable next hop. - HostUnreachable *StatCounter - - // ExtensionHeaderProblem is the number of IP packets which were dropped - // because of a problem encountered when processing an IPv6 extension - // header. - ExtensionHeaderProblem *StatCounter - - // UnexpectedMulticastInputInterface is the number of multicast packets that - // were received on an interface that did not match the corresponding route's - // expected input interface. - UnexpectedMulticastInputInterface *StatCounter - - // UnknownOutputEndpoint is the number of packets that could not be forwarded - // because the output endpoint could not be found. - UnknownOutputEndpoint *StatCounter - - // NoMulticastPendingQueueBufferSpace is the number of multicast packets that - // were dropped due to insufficient buffer space in the pending packet queue. - NoMulticastPendingQueueBufferSpace *StatCounter - - // OutgoingDeviceNoBufferSpace is the number of packets that were dropped due - // to insufficient space in the outgoing device. - OutgoingDeviceNoBufferSpace *StatCounter - - // Errors is the number of IP packets received which could not be - // successfully forwarded. - Errors *StatCounter - - // LINT.ThenChange(network/internal/ip/stats.go:MultiCounterIPForwardingStats) -} - -// IPStats collects IP-specific stats (both v4 and v6). -// -// +stateify savable -type IPStats struct { - // LINT.IfChange(IPStats) - - // PacketsReceived is the number of IP packets received from the link layer. - PacketsReceived *StatCounter - - // ValidPacketsReceived is the number of valid IP packets that reached the IP - // layer. - ValidPacketsReceived *StatCounter - - // DisabledPacketsReceived is the number of IP packets received from the link - // layer when the IP layer is disabled. - DisabledPacketsReceived *StatCounter - - // InvalidDestinationAddressesReceived is the number of IP packets received - // with an unknown or invalid destination address. - InvalidDestinationAddressesReceived *StatCounter - - // InvalidSourceAddressesReceived is the number of IP packets received with a - // source address that should never have been received on the wire. - InvalidSourceAddressesReceived *StatCounter - - // PacketsDelivered is the number of incoming IP packets that are successfully - // delivered to the transport layer. - PacketsDelivered *StatCounter - - // PacketsSent is the number of IP packets sent via WritePacket. - PacketsSent *StatCounter - - // OutgoingPacketErrors is the number of IP packets which failed to write to a - // link-layer endpoint. - OutgoingPacketErrors *StatCounter - - // MalformedPacketsReceived is the number of IP Packets that were dropped due - // to the IP packet header failing validation checks. - MalformedPacketsReceived *StatCounter - - // MalformedFragmentsReceived is the number of IP Fragments that were dropped - // due to the fragment failing validation checks. - MalformedFragmentsReceived *StatCounter - - // IPTablesPreroutingDropped is the number of IP packets dropped in the - // Prerouting chain. - IPTablesPreroutingDropped *StatCounter - - // IPTablesInputDropped is the number of IP packets dropped in the Input - // chain. - IPTablesInputDropped *StatCounter - - // IPTablesForwardDropped is the number of IP packets dropped in the Forward - // chain. - IPTablesForwardDropped *StatCounter - - // IPTablesOutputDropped is the number of IP packets dropped in the Output - // chain. - IPTablesOutputDropped *StatCounter - - // IPTablesPostroutingDropped is the number of IP packets dropped in the - // Postrouting chain. - IPTablesPostroutingDropped *StatCounter - - // TODO(https://gvisor.dev/issues/5529): Move the IPv4-only option stats out - // of IPStats. - // OptionTimestampReceived is the number of Timestamp options seen. - OptionTimestampReceived *StatCounter - - // OptionRecordRouteReceived is the number of Record Route options seen. - OptionRecordRouteReceived *StatCounter - - // OptionRouterAlertReceived is the number of Router Alert options seen. - OptionRouterAlertReceived *StatCounter - - // OptionUnknownReceived is the number of unknown IP options seen. - OptionUnknownReceived *StatCounter - - // Forwarding collects stats related to IP forwarding. - Forwarding IPForwardingStats - - // LINT.ThenChange(network/internal/ip/stats.go:MultiCounterIPStats) -} - -// ARPStats collects ARP-specific stats. -// -// +stateify savable -type ARPStats struct { - // LINT.IfChange(ARPStats) - - // PacketsReceived is the number of ARP packets received from the link layer. - PacketsReceived *StatCounter - - // DisabledPacketsReceived is the number of ARP packets received from the link - // layer when the ARP layer is disabled. - DisabledPacketsReceived *StatCounter - - // MalformedPacketsReceived is the number of ARP packets that were dropped due - // to being malformed. - MalformedPacketsReceived *StatCounter - - // RequestsReceived is the number of ARP requests received. - RequestsReceived *StatCounter - - // RequestsReceivedUnknownTargetAddress is the number of ARP requests that - // were targeted to an interface different from the one it was received on. - RequestsReceivedUnknownTargetAddress *StatCounter - - // OutgoingRequestInterfaceHasNoLocalAddressErrors is the number of failures - // to send an ARP request because the interface has no network address - // assigned to it. - OutgoingRequestInterfaceHasNoLocalAddressErrors *StatCounter - - // OutgoingRequestBadLocalAddressErrors is the number of failures to send an - // ARP request with a bad local address. - OutgoingRequestBadLocalAddressErrors *StatCounter - - // OutgoingRequestsDropped is the number of ARP requests which failed to write - // to a link-layer endpoint. - OutgoingRequestsDropped *StatCounter - - // OutgoingRequestSent is the number of ARP requests successfully written to a - // link-layer endpoint. - OutgoingRequestsSent *StatCounter - - // RepliesReceived is the number of ARP replies received. - RepliesReceived *StatCounter - - // OutgoingRepliesDropped is the number of ARP replies which failed to write - // to a link-layer endpoint. - OutgoingRepliesDropped *StatCounter - - // OutgoingRepliesSent is the number of ARP replies successfully written to a - // link-layer endpoint. - OutgoingRepliesSent *StatCounter - - // LINT.ThenChange(network/arp/stats.go:multiCounterARPStats) -} - -// TCPStats collects TCP-specific stats. -// -// +stateify savable -type TCPStats struct { - // ActiveConnectionOpenings is the number of connections opened - // successfully via Connect. - ActiveConnectionOpenings *StatCounter - - // PassiveConnectionOpenings is the number of connections opened - // successfully via Listen. - PassiveConnectionOpenings *StatCounter - - // CurrentEstablished is the number of TCP connections for which the - // current state is ESTABLISHED. - CurrentEstablished *StatCounter - - // CurrentConnected is the number of TCP connections that - // are in connected state. - CurrentConnected *StatCounter - - // EstablishedResets is the number of times TCP connections have made - // a direct transition to the CLOSED state from either the - // ESTABLISHED state or the CLOSE-WAIT state. - EstablishedResets *StatCounter - - // EstablishedClosed is the number of times established TCP connections - // made a transition to CLOSED state. - EstablishedClosed *StatCounter - - // EstablishedTimedout is the number of times an established connection - // was reset because of keep-alive time out. - EstablishedTimedout *StatCounter - - // ListenOverflowSynDrop is the number of times the listen queue overflowed - // and a SYN was dropped. - ListenOverflowSynDrop *StatCounter - - // ListenOverflowAckDrop is the number of times the final ACK - // in the handshake was dropped due to overflow. - ListenOverflowAckDrop *StatCounter - - // ListenOverflowCookieSent is the number of times a SYN cookie was sent. - ListenOverflowSynCookieSent *StatCounter - - // ListenOverflowSynCookieRcvd is the number of times a valid SYN - // cookie was received. - ListenOverflowSynCookieRcvd *StatCounter - - // ListenOverflowInvalidSynCookieRcvd is the number of times an invalid SYN cookie - // was received. - ListenOverflowInvalidSynCookieRcvd *StatCounter - - // FailedConnectionAttempts is the number of calls to Connect or Listen - // (active and passive openings, respectively) that end in an error. - FailedConnectionAttempts *StatCounter - - // ValidSegmentsReceived is the number of TCP segments received that - // the transport layer successfully parsed. - ValidSegmentsReceived *StatCounter - - // InvalidSegmentsReceived is the number of TCP segments received that - // the transport layer could not parse. - InvalidSegmentsReceived *StatCounter - - // SegmentsSent is the number of TCP segments sent. - SegmentsSent *StatCounter - - // SegmentSendErrors is the number of TCP segments failed to be sent. - SegmentSendErrors *StatCounter - - // ResetsSent is the number of TCP resets sent. - ResetsSent *StatCounter - - // ResetsReceived is the number of TCP resets received. - ResetsReceived *StatCounter - - // Retransmits is the number of TCP segments retransmitted. - Retransmits *StatCounter - - // FastRecovery is the number of times Fast Recovery was used to - // recover from packet loss. - FastRecovery *StatCounter - - // SACKRecovery is the number of times SACK Recovery was used to - // recover from packet loss. - SACKRecovery *StatCounter - - // TLPRecovery is the number of times recovery was accomplished by the tail - // loss probe. - TLPRecovery *StatCounter - - // SlowStartRetransmits is the number of segments retransmitted in slow - // start. - SlowStartRetransmits *StatCounter - - // FastRetransmit is the number of segments retransmitted in fast - // recovery. - FastRetransmit *StatCounter - - // Timeouts is the number of times the RTO expired. - Timeouts *StatCounter - - // ChecksumErrors is the number of segments dropped due to bad checksums. - ChecksumErrors *StatCounter - - // FailedPortReservations is the number of times TCP failed to reserve - // a port. - FailedPortReservations *StatCounter - - // SegmentsAckedWithDSACK is the number of segments acknowledged with - // DSACK. - SegmentsAckedWithDSACK *StatCounter - - // SpuriousRecovery is the number of times the connection entered loss - // recovery spuriously. - SpuriousRecovery *StatCounter - - // SpuriousRTORecovery is the number of spurious RTOs. - SpuriousRTORecovery *StatCounter - - // ForwardMaxInFlightDrop is the number of connection requests that are - // dropped due to exceeding the maximum number of in-flight connection - // requests. - ForwardMaxInFlightDrop *StatCounter -} - -// UDPStats collects UDP-specific stats. -// -// +stateify savable -type UDPStats struct { - // PacketsReceived is the number of UDP datagrams received via - // HandlePacket. - PacketsReceived *StatCounter - - // UnknownPortErrors is the number of incoming UDP datagrams dropped - // because they did not have a known destination port. - UnknownPortErrors *StatCounter - - // ReceiveBufferErrors is the number of incoming UDP datagrams dropped - // due to the receiving buffer being in an invalid state. - ReceiveBufferErrors *StatCounter - - // MalformedPacketsReceived is the number of incoming UDP datagrams - // dropped due to the UDP header being in a malformed state. - MalformedPacketsReceived *StatCounter - - // PacketsSent is the number of UDP datagrams sent via sendUDP. - PacketsSent *StatCounter - - // PacketSendErrors is the number of datagrams failed to be sent. - PacketSendErrors *StatCounter - - // ChecksumErrors is the number of datagrams dropped due to bad checksums. - ChecksumErrors *StatCounter -} - -// NICNeighborStats holds metrics for the neighbor table. -// -// +stateify savable -type NICNeighborStats struct { - // LINT.IfChange(NICNeighborStats) - - // UnreachableEntryLookups counts the number of lookups performed on an - // entry in Unreachable state. - UnreachableEntryLookups *StatCounter - - // DroppedConfirmationForNoninitiatedNeighbor counts the number of neighbor - // responses that were dropped because they didn't match an entry in the - // cache. - DroppedConfirmationForNoninitiatedNeighbor *StatCounter - - // DroppedInvalidLinkAddressConfirmations counts the number of neighbor - // responses that were ignored because they had an invalid source link-layer - // address. - DroppedInvalidLinkAddressConfirmations *StatCounter - - // LINT.ThenChange(stack/nic_stats.go:multiCounterNICNeighborStats) -} - -// NICPacketStats holds basic packet statistics. -// -// +stateify savable -type NICPacketStats struct { - // LINT.IfChange(NICPacketStats) - - // Packets is the number of packets counted. - Packets *StatCounter - - // Bytes is the number of bytes counted. - Bytes *StatCounter - - // LINT.ThenChange(stack/nic_stats.go:multiCounterNICPacketStats) -} - -// IntegralStatCounterMap holds a map associating integral keys with -// StatCounters. -// -// +stateify savable -type IntegralStatCounterMap struct { - mu sync.RWMutex `state:"nosave"` - // +checklocks:mu - counterMap map[uint64]*StatCounter -} - -// Keys returns all keys present in the map. -func (m *IntegralStatCounterMap) Keys() []uint64 { - m.mu.RLock() - defer m.mu.RUnlock() - var keys []uint64 - for k := range m.counterMap { - keys = append(keys, k) - } - return keys -} - -// Get returns the counter mapped by the provided key. -func (m *IntegralStatCounterMap) Get(key uint64) (*StatCounter, bool) { - m.mu.RLock() - defer m.mu.RUnlock() - counter, ok := m.counterMap[key] - return counter, ok -} - -// Init initializes the map. -func (m *IntegralStatCounterMap) Init() { - m.mu.Lock() - defer m.mu.Unlock() - m.counterMap = make(map[uint64]*StatCounter) -} - -// Increment increments the counter associated with the provided key. -func (m *IntegralStatCounterMap) Increment(key uint64) { - m.mu.RLock() - counter, ok := m.counterMap[key] - m.mu.RUnlock() - - if !ok { - m.mu.Lock() - counter, ok = m.counterMap[key] - if !ok { - counter = new(StatCounter) - m.counterMap[key] = counter - } - m.mu.Unlock() - } - counter.Increment() -} - -// A MultiIntegralStatCounterMap keeps track of two integral counter maps at -// once. -// -// +stateify savable -type MultiIntegralStatCounterMap struct { - a *IntegralStatCounterMap - b *IntegralStatCounterMap -} - -// Init sets the internal integral counter maps to point to a and b. -func (m *MultiIntegralStatCounterMap) Init(a, b *IntegralStatCounterMap) { - m.a = a - m.b = b -} - -// Increment increments the counter in each map corresponding to the -// provided key. -func (m *MultiIntegralStatCounterMap) Increment(key uint64) { - m.a.Increment(key) - m.b.Increment(key) -} - -// NICStats holds NIC statistics. -// -// +stateify savable -type NICStats struct { - // LINT.IfChange(NICStats) - - // UnknownL3ProtocolRcvdPacketCounts records the number of packets received - // for each unknown or unsupported network protocol number. - UnknownL3ProtocolRcvdPacketCounts *IntegralStatCounterMap - - // UnknownL4ProtocolRcvdPacketCounts records the number of packets received - // for each unknown or unsupported transport protocol number. - UnknownL4ProtocolRcvdPacketCounts *IntegralStatCounterMap - - // MalformedL4RcvdPackets is the number of packets received by a NIC that - // could not be delivered to a transport endpoint because the L4 header could - // not be parsed. - MalformedL4RcvdPackets *StatCounter - - // Tx contains statistics about transmitted packets. - Tx NICPacketStats - - // TxPacketsDroppedNoBufferSpace is the number of packets dropepd due to the - // NIC not having enough buffer space to send the packet. - // - // Packets may be dropped with a no buffer space error when the device TX - // queue is full. - TxPacketsDroppedNoBufferSpace *StatCounter - - // Rx contains statistics about received packets. - Rx NICPacketStats - - // DisabledRx contains statistics about received packets on disabled NICs. - DisabledRx NICPacketStats - - // Neighbor contains statistics about neighbor entries. - Neighbor NICNeighborStats - - // LINT.ThenChange(stack/nic_stats.go:multiCounterNICStats) -} - -// FillIn returns a copy of s with nil fields initialized to new StatCounters. -func (s NICStats) FillIn() NICStats { - InitStatCounters(reflect.ValueOf(&s).Elem()) - return s -} - -// Stats holds statistics about the networking stack. -// -// +stateify savable -type Stats struct { - // TODO(https://gvisor.dev/issues/5986): Make the DroppedPackets stat less - // ambiguous. - - // DroppedPackets is the number of packets dropped at the transport layer. - DroppedPackets *StatCounter - - // NICs is an aggregation of every NIC's statistics. These should not be - // incremented using this field, but using the relevant NIC multicounters. - NICs NICStats - - // ICMP is an aggregation of every NetworkEndpoint's ICMP statistics (both v4 - // and v6). These should not be incremented using this field, but using the - // relevant NetworkEndpoint ICMP multicounters. - ICMP ICMPStats - - // IGMP is an aggregation of every NetworkEndpoint's IGMP statistics. These - // should not be incremented using this field, but using the relevant - // NetworkEndpoint IGMP multicounters. - IGMP IGMPStats - - // IP is an aggregation of every NetworkEndpoint's IP statistics. These should - // not be incremented using this field, but using the relevant NetworkEndpoint - // IP multicounters. - IP IPStats - - // ARP is an aggregation of every NetworkEndpoint's ARP statistics. These - // should not be incremented using this field, but using the relevant - // NetworkEndpoint ARP multicounters. - ARP ARPStats - - // TCP holds TCP-specific stats. - TCP TCPStats - - // UDP holds UDP-specific stats. - UDP UDPStats -} - -// ReceiveErrors collects packet receive errors within transport endpoint. -// -// +stateify savable -type ReceiveErrors struct { - // ReceiveBufferOverflow is the number of received packets dropped - // due to the receive buffer being full. - ReceiveBufferOverflow StatCounter - - // MalformedPacketsReceived is the number of incoming packets - // dropped due to the packet header being in a malformed state. - MalformedPacketsReceived StatCounter - - // ClosedReceiver is the number of received packets dropped because - // of receiving endpoint state being closed. - ClosedReceiver StatCounter - - // ChecksumErrors is the number of packets dropped due to bad checksums. - ChecksumErrors StatCounter -} - -// SendErrors collects packet send errors within the transport layer for an -// endpoint. -// -// +stateify savable -type SendErrors struct { - // SendToNetworkFailed is the number of packets failed to be written to - // the network endpoint. - SendToNetworkFailed StatCounter - - // NoRoute is the number of times we failed to resolve IP route. - NoRoute StatCounter -} - -// ReadErrors collects segment read errors from an endpoint read call. -// -// +stateify savable -type ReadErrors struct { - // ReadClosed is the number of received packet drops because the endpoint - // was shutdown for read. - ReadClosed StatCounter - - // InvalidEndpointState is the number of times we found the endpoint state - // to be unexpected. - InvalidEndpointState StatCounter - - // NotConnected is the number of times we tried to read but found that the - // endpoint was not connected. - NotConnected StatCounter -} - -// WriteErrors collects packet write errors from an endpoint write call. -// -// +stateify savable -type WriteErrors struct { - // WriteClosed is the number of packet drops because the endpoint - // was shutdown for write. - WriteClosed StatCounter - - // InvalidEndpointState is the number of times we found the endpoint state - // to be unexpected. - InvalidEndpointState StatCounter - - // InvalidArgs is the number of times invalid input arguments were - // provided for endpoint Write call. - InvalidArgs StatCounter -} - -// TransportEndpointStats collects statistics about the endpoint. -// -// +stateify savable -type TransportEndpointStats struct { - // PacketsReceived is the number of successful packet receives. - PacketsReceived StatCounter - - // PacketsSent is the number of successful packet sends. - PacketsSent StatCounter - - // ReceiveErrors collects packet receive errors within transport layer. - ReceiveErrors ReceiveErrors - - // ReadErrors collects packet read errors from an endpoint read call. - ReadErrors ReadErrors - - // SendErrors collects packet send errors within the transport layer. - SendErrors SendErrors - - // WriteErrors collects packet write errors from an endpoint write call. - WriteErrors WriteErrors -} - -// IsEndpointStats is an empty method to implement the tcpip.EndpointStats -// marker interface. -func (*TransportEndpointStats) IsEndpointStats() {} - -// InitStatCounters initializes v's fields with nil StatCounter fields to new -// StatCounters. -func InitStatCounters(v reflect.Value) { - for i := 0; i < v.NumField(); i++ { - v := v.Field(i) - if s, ok := v.Addr().Interface().(**StatCounter); ok { - if *s == nil { - *s = new(StatCounter) - } - } else if s, ok := v.Addr().Interface().(**IntegralStatCounterMap); ok { - if *s == nil { - *s = new(IntegralStatCounterMap) - (*s).Init() - } - } else { - InitStatCounters(v) - } - } -} - -// FillIn returns a copy of s with nil fields initialized to new StatCounters. -func (s Stats) FillIn() Stats { - InitStatCounters(reflect.ValueOf(&s).Elem()) - return s -} - -// Clone clones a copy of the TransportEndpointStats into dst by atomically -// reading each field. -func (src *TransportEndpointStats) Clone(dst *TransportEndpointStats) { - clone(reflect.ValueOf(dst).Elem(), reflect.ValueOf(src).Elem()) -} - -func clone(dst reflect.Value, src reflect.Value) { - for i := 0; i < dst.NumField(); i++ { - d := dst.Field(i) - s := src.Field(i) - if c, ok := s.Addr().Interface().(*StatCounter); ok { - d.Addr().Interface().(*StatCounter).IncrementBy(c.Value()) - } else { - clone(d, s) - } - } -} - -// String implements the fmt.Stringer interface. -func (a Address) String() string { - switch l := a.Len(); l { - case 4: - return fmt.Sprintf("%d.%d.%d.%d", int(a.addr[0]), int(a.addr[1]), int(a.addr[2]), int(a.addr[3])) - case 16: - // Find the longest subsequence of hexadecimal zeros. - start, end := -1, -1 - for i := 0; i < a.Len(); i += 2 { - j := i - for j < a.Len() && a.addr[j] == 0 && a.addr[j+1] == 0 { - j += 2 - } - if j > i+2 && j-i > end-start { - start, end = i, j - } - } - - var b strings.Builder - for i := 0; i < a.Len(); i += 2 { - if i == start { - b.WriteString("::") - i = end - if end >= a.Len() { - break - } - } else if i > 0 { - b.WriteByte(':') - } - v := uint16(a.addr[i+0])<<8 | uint16(a.addr[i+1]) - if v == 0 { - b.WriteByte('0') - } else { - const digits = "0123456789abcdef" - for i := uint(3); i < 4; i-- { - if v := v >> (i * 4); v != 0 { - b.WriteByte(digits[v&0xf]) - } - } - } - } - return b.String() - default: - return fmt.Sprintf("%x", a.addr[:l]) - } -} - -// To4 converts the IPv4 address to a 4-byte representation. -// If the address is not an IPv4 address, To4 returns the empty Address. -func (a Address) To4() Address { - const ( - ipv4len = 4 - ipv6len = 16 - ) - if a.Len() == ipv4len { - return a - } - if a.Len() == ipv6len && - isZeros(a.addr[:10]) && - a.addr[10] == 0xff && - a.addr[11] == 0xff { - return AddrFrom4Slice(a.addr[12:16]) - } - return Address{} -} - -// isZeros reports whether addr is all zeros. -func isZeros(addr []byte) bool { - for _, b := range addr { - if b != 0 { - return false - } - } - return true -} - -// LinkAddress is a byte slice cast as a string that represents a link address. -// It is typically a 6-byte MAC address. -type LinkAddress string - -// String implements the fmt.Stringer interface. -func (a LinkAddress) String() string { - switch len(a) { - case 6: - return fmt.Sprintf("%02x:%02x:%02x:%02x:%02x:%02x", a[0], a[1], a[2], a[3], a[4], a[5]) - default: - return fmt.Sprintf("%x", []byte(a)) - } -} - -// ParseMACAddress parses an IEEE 802 address. -// -// It must be in the format aa:bb:cc:dd:ee:ff or aa-bb-cc-dd-ee-ff. -func ParseMACAddress(s string) (LinkAddress, error) { - parts := strings.FieldsFunc(s, func(c rune) bool { - return c == ':' || c == '-' - }) - if len(parts) != LinkAddressSize { - return "", fmt.Errorf("inconsistent parts: %s", s) - } - addr := make([]byte, 0, len(parts)) - for _, part := range parts { - u, err := strconv.ParseUint(part, 16, 8) - if err != nil { - return "", fmt.Errorf("invalid hex digits: %s", s) - } - addr = append(addr, byte(u)) - } - return LinkAddress(addr), nil -} - -// GetRandMacAddr returns a mac address that can be used for local virtual devices. -func GetRandMacAddr() LinkAddress { - mac := make(net.HardwareAddr, LinkAddressSize) - rand.Read(mac) // Fill with random data. - mac[0] &^= 0x1 // Clear multicast bit. - mac[0] |= 0x2 // Set local assignment bit (IEEE802). - return LinkAddress(mac) -} - -// AddressWithPrefix is an address with its subnet prefix length. -// -// +stateify savable -type AddressWithPrefix struct { - // Address is a network address. - Address Address - - // PrefixLen is the subnet prefix length. - PrefixLen int -} - -// String implements the fmt.Stringer interface. -func (a AddressWithPrefix) String() string { - return fmt.Sprintf("%s/%d", a.Address, a.PrefixLen) -} - -// Subnet converts the address and prefix into a Subnet value and returns it. -func (a AddressWithPrefix) Subnet() Subnet { - addrLen := a.Address.length - if a.PrefixLen <= 0 { - return Subnet{ - address: Address{length: addrLen}, - mask: AddressMask{length: addrLen}, - } - } - if a.PrefixLen >= addrLen*8 { - sub := Subnet{ - address: a.Address, - mask: AddressMask{length: addrLen}, - } - for i := 0; i < addrLen; i++ { - sub.mask.mask[i] = 0xff - } - return sub - } - - sa := Address{length: addrLen} - sm := AddressMask{length: addrLen} - n := uint(a.PrefixLen) - for i := 0; i < addrLen; i++ { - if n >= 8 { - sa.addr[i] = a.Address.addr[i] - sm.mask[i] = 0xff - n -= 8 - continue - } - sm.mask[i] = ^byte(0xff >> n) - sa.addr[i] = a.Address.addr[i] & sm.mask[i] - n = 0 - } - - // For extra caution, call NewSubnet rather than directly creating the Subnet - // value. If that fails it indicates a serious bug in this code, so panic is - // in order. - s, err := NewSubnet(sa, sm) - if err != nil { - panic("invalid subnet: " + err.Error()) - } - return s -} - -// ProtocolAddress is an address and the network protocol it is associated -// with. -// -// +stateify savable -type ProtocolAddress struct { - // Protocol is the protocol of the address. - Protocol NetworkProtocolNumber - - // AddressWithPrefix is a network address with its subnet prefix length. - AddressWithPrefix AddressWithPrefix -} - -var ( - // danglingEndpointsMu protects access to danglingEndpoints. - danglingEndpointsMu sync.Mutex - - // danglingEndpoints tracks all dangling endpoints no longer owned by the app. - danglingEndpoints = make(map[Endpoint]struct{}) -) - -// GetDanglingEndpoints returns all dangling endpoints. -func GetDanglingEndpoints() []Endpoint { - danglingEndpointsMu.Lock() - es := make([]Endpoint, 0, len(danglingEndpoints)) - for e := range danglingEndpoints { - es = append(es, e) - } - danglingEndpointsMu.Unlock() - return es -} - -// ReleaseDanglingEndpoints clears out all all reference counted objects held by -// dangling endpoints. -func ReleaseDanglingEndpoints() { - // Get the dangling endpoints first to avoid locking around Release(), which - // can cause a lock inversion with endpoint.mu and danglingEndpointsMu. - // Calling Release on a dangling endpoint that has been deleted is a noop. - eps := GetDanglingEndpoints() - for _, ep := range eps { - ep.Abort() - } -} - -// AddDanglingEndpoint adds a dangling endpoint. -func AddDanglingEndpoint(e Endpoint) { - danglingEndpointsMu.Lock() - danglingEndpoints[e] = struct{}{} - danglingEndpointsMu.Unlock() -} - -// DeleteDanglingEndpoint removes a dangling endpoint. -func DeleteDanglingEndpoint(e Endpoint) { - danglingEndpointsMu.Lock() - delete(danglingEndpoints, e) - danglingEndpointsMu.Unlock() -} - -// AsyncLoading is the global barrier for asynchronous endpoint loading -// activities. -var AsyncLoading sync.WaitGroup diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/tcpip_linux_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/tcpip_linux_state_autogen.go deleted file mode 100644 index cbd75faa3f..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/tcpip_linux_state_autogen.go +++ /dev/null @@ -1,6 +0,0 @@ -// automatically generated by stateify. - -//go:build linux -// +build linux - -package tcpip diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/tcpip_state.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/tcpip_state.go deleted file mode 100644 index 0603ff049e..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/tcpip_state.go +++ /dev/null @@ -1,28 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcpip - -import ( - "context" - "time" -) - -func (c *ReceivableControlMessages) saveTimestamp() int64 { - return c.Timestamp.UnixNano() -} - -func (c *ReceivableControlMessages) loadTimestamp(_ context.Context, nsec int64) { - c.Timestamp = time.Unix(0, nsec) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/tcpip_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/tcpip_state_autogen.go deleted file mode 100644 index 7a75e88653..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/tcpip_state_autogen.go +++ /dev/null @@ -1,3294 +0,0 @@ -// automatically generated by stateify. - -package tcpip - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (e *ErrAborted) StateTypeName() string { - return "pkg/tcpip.ErrAborted" -} - -func (e *ErrAborted) StateFields() []string { - return []string{} -} - -func (e *ErrAborted) beforeSave() {} - -// +checklocksignore -func (e *ErrAborted) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrAborted) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrAborted) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrAddressFamilyNotSupported) StateTypeName() string { - return "pkg/tcpip.ErrAddressFamilyNotSupported" -} - -func (e *ErrAddressFamilyNotSupported) StateFields() []string { - return []string{} -} - -func (e *ErrAddressFamilyNotSupported) beforeSave() {} - -// +checklocksignore -func (e *ErrAddressFamilyNotSupported) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrAddressFamilyNotSupported) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrAddressFamilyNotSupported) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrAlreadyBound) StateTypeName() string { - return "pkg/tcpip.ErrAlreadyBound" -} - -func (e *ErrAlreadyBound) StateFields() []string { - return []string{} -} - -func (e *ErrAlreadyBound) beforeSave() {} - -// +checklocksignore -func (e *ErrAlreadyBound) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrAlreadyBound) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrAlreadyBound) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrAlreadyConnected) StateTypeName() string { - return "pkg/tcpip.ErrAlreadyConnected" -} - -func (e *ErrAlreadyConnected) StateFields() []string { - return []string{} -} - -func (e *ErrAlreadyConnected) beforeSave() {} - -// +checklocksignore -func (e *ErrAlreadyConnected) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrAlreadyConnected) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrAlreadyConnected) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrAlreadyConnecting) StateTypeName() string { - return "pkg/tcpip.ErrAlreadyConnecting" -} - -func (e *ErrAlreadyConnecting) StateFields() []string { - return []string{} -} - -func (e *ErrAlreadyConnecting) beforeSave() {} - -// +checklocksignore -func (e *ErrAlreadyConnecting) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrAlreadyConnecting) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrAlreadyConnecting) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrBadAddress) StateTypeName() string { - return "pkg/tcpip.ErrBadAddress" -} - -func (e *ErrBadAddress) StateFields() []string { - return []string{} -} - -func (e *ErrBadAddress) beforeSave() {} - -// +checklocksignore -func (e *ErrBadAddress) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrBadAddress) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrBadAddress) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrBadBuffer) StateTypeName() string { - return "pkg/tcpip.ErrBadBuffer" -} - -func (e *ErrBadBuffer) StateFields() []string { - return []string{} -} - -func (e *ErrBadBuffer) beforeSave() {} - -// +checklocksignore -func (e *ErrBadBuffer) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrBadBuffer) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrBadBuffer) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrBadLocalAddress) StateTypeName() string { - return "pkg/tcpip.ErrBadLocalAddress" -} - -func (e *ErrBadLocalAddress) StateFields() []string { - return []string{} -} - -func (e *ErrBadLocalAddress) beforeSave() {} - -// +checklocksignore -func (e *ErrBadLocalAddress) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrBadLocalAddress) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrBadLocalAddress) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrBroadcastDisabled) StateTypeName() string { - return "pkg/tcpip.ErrBroadcastDisabled" -} - -func (e *ErrBroadcastDisabled) StateFields() []string { - return []string{} -} - -func (e *ErrBroadcastDisabled) beforeSave() {} - -// +checklocksignore -func (e *ErrBroadcastDisabled) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrBroadcastDisabled) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrBroadcastDisabled) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrClosedForReceive) StateTypeName() string { - return "pkg/tcpip.ErrClosedForReceive" -} - -func (e *ErrClosedForReceive) StateFields() []string { - return []string{} -} - -func (e *ErrClosedForReceive) beforeSave() {} - -// +checklocksignore -func (e *ErrClosedForReceive) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrClosedForReceive) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrClosedForReceive) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrClosedForSend) StateTypeName() string { - return "pkg/tcpip.ErrClosedForSend" -} - -func (e *ErrClosedForSend) StateFields() []string { - return []string{} -} - -func (e *ErrClosedForSend) beforeSave() {} - -// +checklocksignore -func (e *ErrClosedForSend) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrClosedForSend) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrClosedForSend) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrConnectStarted) StateTypeName() string { - return "pkg/tcpip.ErrConnectStarted" -} - -func (e *ErrConnectStarted) StateFields() []string { - return []string{} -} - -func (e *ErrConnectStarted) beforeSave() {} - -// +checklocksignore -func (e *ErrConnectStarted) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrConnectStarted) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrConnectStarted) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrConnectionAborted) StateTypeName() string { - return "pkg/tcpip.ErrConnectionAborted" -} - -func (e *ErrConnectionAborted) StateFields() []string { - return []string{} -} - -func (e *ErrConnectionAborted) beforeSave() {} - -// +checklocksignore -func (e *ErrConnectionAborted) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrConnectionAborted) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrConnectionAborted) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrConnectionRefused) StateTypeName() string { - return "pkg/tcpip.ErrConnectionRefused" -} - -func (e *ErrConnectionRefused) StateFields() []string { - return []string{} -} - -func (e *ErrConnectionRefused) beforeSave() {} - -// +checklocksignore -func (e *ErrConnectionRefused) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrConnectionRefused) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrConnectionRefused) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrConnectionReset) StateTypeName() string { - return "pkg/tcpip.ErrConnectionReset" -} - -func (e *ErrConnectionReset) StateFields() []string { - return []string{} -} - -func (e *ErrConnectionReset) beforeSave() {} - -// +checklocksignore -func (e *ErrConnectionReset) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrConnectionReset) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrConnectionReset) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrDestinationRequired) StateTypeName() string { - return "pkg/tcpip.ErrDestinationRequired" -} - -func (e *ErrDestinationRequired) StateFields() []string { - return []string{} -} - -func (e *ErrDestinationRequired) beforeSave() {} - -// +checklocksignore -func (e *ErrDestinationRequired) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrDestinationRequired) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrDestinationRequired) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrDuplicateAddress) StateTypeName() string { - return "pkg/tcpip.ErrDuplicateAddress" -} - -func (e *ErrDuplicateAddress) StateFields() []string { - return []string{} -} - -func (e *ErrDuplicateAddress) beforeSave() {} - -// +checklocksignore -func (e *ErrDuplicateAddress) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrDuplicateAddress) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrDuplicateAddress) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrDuplicateNICID) StateTypeName() string { - return "pkg/tcpip.ErrDuplicateNICID" -} - -func (e *ErrDuplicateNICID) StateFields() []string { - return []string{} -} - -func (e *ErrDuplicateNICID) beforeSave() {} - -// +checklocksignore -func (e *ErrDuplicateNICID) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrDuplicateNICID) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrDuplicateNICID) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrInvalidNICID) StateTypeName() string { - return "pkg/tcpip.ErrInvalidNICID" -} - -func (e *ErrInvalidNICID) StateFields() []string { - return []string{} -} - -func (e *ErrInvalidNICID) beforeSave() {} - -// +checklocksignore -func (e *ErrInvalidNICID) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrInvalidNICID) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrInvalidNICID) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrInvalidEndpointState) StateTypeName() string { - return "pkg/tcpip.ErrInvalidEndpointState" -} - -func (e *ErrInvalidEndpointState) StateFields() []string { - return []string{} -} - -func (e *ErrInvalidEndpointState) beforeSave() {} - -// +checklocksignore -func (e *ErrInvalidEndpointState) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrInvalidEndpointState) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrInvalidEndpointState) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrInvalidOptionValue) StateTypeName() string { - return "pkg/tcpip.ErrInvalidOptionValue" -} - -func (e *ErrInvalidOptionValue) StateFields() []string { - return []string{} -} - -func (e *ErrInvalidOptionValue) beforeSave() {} - -// +checklocksignore -func (e *ErrInvalidOptionValue) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrInvalidOptionValue) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrInvalidOptionValue) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrInvalidPortRange) StateTypeName() string { - return "pkg/tcpip.ErrInvalidPortRange" -} - -func (e *ErrInvalidPortRange) StateFields() []string { - return []string{} -} - -func (e *ErrInvalidPortRange) beforeSave() {} - -// +checklocksignore -func (e *ErrInvalidPortRange) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrInvalidPortRange) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrInvalidPortRange) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrMalformedHeader) StateTypeName() string { - return "pkg/tcpip.ErrMalformedHeader" -} - -func (e *ErrMalformedHeader) StateFields() []string { - return []string{} -} - -func (e *ErrMalformedHeader) beforeSave() {} - -// +checklocksignore -func (e *ErrMalformedHeader) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrMalformedHeader) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrMalformedHeader) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrMessageTooLong) StateTypeName() string { - return "pkg/tcpip.ErrMessageTooLong" -} - -func (e *ErrMessageTooLong) StateFields() []string { - return []string{} -} - -func (e *ErrMessageTooLong) beforeSave() {} - -// +checklocksignore -func (e *ErrMessageTooLong) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrMessageTooLong) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrMessageTooLong) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrNetworkUnreachable) StateTypeName() string { - return "pkg/tcpip.ErrNetworkUnreachable" -} - -func (e *ErrNetworkUnreachable) StateFields() []string { - return []string{} -} - -func (e *ErrNetworkUnreachable) beforeSave() {} - -// +checklocksignore -func (e *ErrNetworkUnreachable) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrNetworkUnreachable) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrNetworkUnreachable) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrNoBufferSpace) StateTypeName() string { - return "pkg/tcpip.ErrNoBufferSpace" -} - -func (e *ErrNoBufferSpace) StateFields() []string { - return []string{} -} - -func (e *ErrNoBufferSpace) beforeSave() {} - -// +checklocksignore -func (e *ErrNoBufferSpace) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrNoBufferSpace) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrNoBufferSpace) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrNoPortAvailable) StateTypeName() string { - return "pkg/tcpip.ErrNoPortAvailable" -} - -func (e *ErrNoPortAvailable) StateFields() []string { - return []string{} -} - -func (e *ErrNoPortAvailable) beforeSave() {} - -// +checklocksignore -func (e *ErrNoPortAvailable) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrNoPortAvailable) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrNoPortAvailable) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrHostUnreachable) StateTypeName() string { - return "pkg/tcpip.ErrHostUnreachable" -} - -func (e *ErrHostUnreachable) StateFields() []string { - return []string{} -} - -func (e *ErrHostUnreachable) beforeSave() {} - -// +checklocksignore -func (e *ErrHostUnreachable) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrHostUnreachable) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrHostUnreachable) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrHostDown) StateTypeName() string { - return "pkg/tcpip.ErrHostDown" -} - -func (e *ErrHostDown) StateFields() []string { - return []string{} -} - -func (e *ErrHostDown) beforeSave() {} - -// +checklocksignore -func (e *ErrHostDown) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrHostDown) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrHostDown) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrNoNet) StateTypeName() string { - return "pkg/tcpip.ErrNoNet" -} - -func (e *ErrNoNet) StateFields() []string { - return []string{} -} - -func (e *ErrNoNet) beforeSave() {} - -// +checklocksignore -func (e *ErrNoNet) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrNoNet) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrNoNet) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrNoSuchFile) StateTypeName() string { - return "pkg/tcpip.ErrNoSuchFile" -} - -func (e *ErrNoSuchFile) StateFields() []string { - return []string{} -} - -func (e *ErrNoSuchFile) beforeSave() {} - -// +checklocksignore -func (e *ErrNoSuchFile) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrNoSuchFile) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrNoSuchFile) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrNotConnected) StateTypeName() string { - return "pkg/tcpip.ErrNotConnected" -} - -func (e *ErrNotConnected) StateFields() []string { - return []string{} -} - -func (e *ErrNotConnected) beforeSave() {} - -// +checklocksignore -func (e *ErrNotConnected) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrNotConnected) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrNotConnected) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrNotPermitted) StateTypeName() string { - return "pkg/tcpip.ErrNotPermitted" -} - -func (e *ErrNotPermitted) StateFields() []string { - return []string{} -} - -func (e *ErrNotPermitted) beforeSave() {} - -// +checklocksignore -func (e *ErrNotPermitted) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrNotPermitted) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrNotPermitted) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrNotSupported) StateTypeName() string { - return "pkg/tcpip.ErrNotSupported" -} - -func (e *ErrNotSupported) StateFields() []string { - return []string{} -} - -func (e *ErrNotSupported) beforeSave() {} - -// +checklocksignore -func (e *ErrNotSupported) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrNotSupported) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrNotSupported) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrPortInUse) StateTypeName() string { - return "pkg/tcpip.ErrPortInUse" -} - -func (e *ErrPortInUse) StateFields() []string { - return []string{} -} - -func (e *ErrPortInUse) beforeSave() {} - -// +checklocksignore -func (e *ErrPortInUse) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrPortInUse) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrPortInUse) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrQueueSizeNotSupported) StateTypeName() string { - return "pkg/tcpip.ErrQueueSizeNotSupported" -} - -func (e *ErrQueueSizeNotSupported) StateFields() []string { - return []string{} -} - -func (e *ErrQueueSizeNotSupported) beforeSave() {} - -// +checklocksignore -func (e *ErrQueueSizeNotSupported) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrQueueSizeNotSupported) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrQueueSizeNotSupported) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrTimeout) StateTypeName() string { - return "pkg/tcpip.ErrTimeout" -} - -func (e *ErrTimeout) StateFields() []string { - return []string{} -} - -func (e *ErrTimeout) beforeSave() {} - -// +checklocksignore -func (e *ErrTimeout) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrTimeout) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrTimeout) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrUnknownDevice) StateTypeName() string { - return "pkg/tcpip.ErrUnknownDevice" -} - -func (e *ErrUnknownDevice) StateFields() []string { - return []string{} -} - -func (e *ErrUnknownDevice) beforeSave() {} - -// +checklocksignore -func (e *ErrUnknownDevice) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrUnknownDevice) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrUnknownDevice) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrUnknownNICID) StateTypeName() string { - return "pkg/tcpip.ErrUnknownNICID" -} - -func (e *ErrUnknownNICID) StateFields() []string { - return []string{} -} - -func (e *ErrUnknownNICID) beforeSave() {} - -// +checklocksignore -func (e *ErrUnknownNICID) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrUnknownNICID) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrUnknownNICID) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrUnknownProtocol) StateTypeName() string { - return "pkg/tcpip.ErrUnknownProtocol" -} - -func (e *ErrUnknownProtocol) StateFields() []string { - return []string{} -} - -func (e *ErrUnknownProtocol) beforeSave() {} - -// +checklocksignore -func (e *ErrUnknownProtocol) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrUnknownProtocol) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrUnknownProtocol) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrUnknownProtocolOption) StateTypeName() string { - return "pkg/tcpip.ErrUnknownProtocolOption" -} - -func (e *ErrUnknownProtocolOption) StateFields() []string { - return []string{} -} - -func (e *ErrUnknownProtocolOption) beforeSave() {} - -// +checklocksignore -func (e *ErrUnknownProtocolOption) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrUnknownProtocolOption) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrUnknownProtocolOption) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrWouldBlock) StateTypeName() string { - return "pkg/tcpip.ErrWouldBlock" -} - -func (e *ErrWouldBlock) StateFields() []string { - return []string{} -} - -func (e *ErrWouldBlock) beforeSave() {} - -// +checklocksignore -func (e *ErrWouldBlock) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrWouldBlock) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrWouldBlock) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrMissingRequiredFields) StateTypeName() string { - return "pkg/tcpip.ErrMissingRequiredFields" -} - -func (e *ErrMissingRequiredFields) StateFields() []string { - return []string{} -} - -func (e *ErrMissingRequiredFields) beforeSave() {} - -// +checklocksignore -func (e *ErrMissingRequiredFields) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrMissingRequiredFields) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrMissingRequiredFields) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (e *ErrMulticastInputCannotBeOutput) StateTypeName() string { - return "pkg/tcpip.ErrMulticastInputCannotBeOutput" -} - -func (e *ErrMulticastInputCannotBeOutput) StateFields() []string { - return []string{} -} - -func (e *ErrMulticastInputCannotBeOutput) beforeSave() {} - -// +checklocksignore -func (e *ErrMulticastInputCannotBeOutput) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *ErrMulticastInputCannotBeOutput) afterLoad(context.Context) {} - -// +checklocksignore -func (e *ErrMulticastInputCannotBeOutput) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (l *RouteList) StateTypeName() string { - return "pkg/tcpip.RouteList" -} - -func (l *RouteList) StateFields() []string { - return []string{ - "head", - "tail", - } -} - -func (l *RouteList) beforeSave() {} - -// +checklocksignore -func (l *RouteList) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.head) - stateSinkObject.Save(1, &l.tail) -} - -func (l *RouteList) afterLoad(context.Context) {} - -// +checklocksignore -func (l *RouteList) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.head) - stateSourceObject.Load(1, &l.tail) -} - -func (e *RouteEntry) StateTypeName() string { - return "pkg/tcpip.RouteEntry" -} - -func (e *RouteEntry) StateFields() []string { - return []string{ - "next", - "prev", - } -} - -func (e *RouteEntry) beforeSave() {} - -// +checklocksignore -func (e *RouteEntry) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.next) - stateSinkObject.Save(1, &e.prev) -} - -func (e *RouteEntry) afterLoad(context.Context) {} - -// +checklocksignore -func (e *RouteEntry) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.next) - stateSourceObject.Load(1, &e.prev) -} - -func (l *sockErrorList) StateTypeName() string { - return "pkg/tcpip.sockErrorList" -} - -func (l *sockErrorList) StateFields() []string { - return []string{ - "head", - "tail", - } -} - -func (l *sockErrorList) beforeSave() {} - -// +checklocksignore -func (l *sockErrorList) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.head) - stateSinkObject.Save(1, &l.tail) -} - -func (l *sockErrorList) afterLoad(context.Context) {} - -// +checklocksignore -func (l *sockErrorList) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.head) - stateSourceObject.Load(1, &l.tail) -} - -func (e *sockErrorEntry) StateTypeName() string { - return "pkg/tcpip.sockErrorEntry" -} - -func (e *sockErrorEntry) StateFields() []string { - return []string{ - "next", - "prev", - } -} - -func (e *sockErrorEntry) beforeSave() {} - -// +checklocksignore -func (e *sockErrorEntry) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.next) - stateSinkObject.Save(1, &e.prev) -} - -func (e *sockErrorEntry) afterLoad(context.Context) {} - -// +checklocksignore -func (e *sockErrorEntry) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.next) - stateSourceObject.Load(1, &e.prev) -} - -func (so *SocketOptions) StateTypeName() string { - return "pkg/tcpip.SocketOptions" -} - -func (so *SocketOptions) StateFields() []string { - return []string{ - "handler", - "broadcastEnabled", - "passCredEnabled", - "noChecksumEnabled", - "reuseAddressEnabled", - "reusePortEnabled", - "keepAliveEnabled", - "multicastLoopEnabled", - "receiveTOSEnabled", - "receiveTTLEnabled", - "receiveHopLimitEnabled", - "receiveTClassEnabled", - "receivePacketInfoEnabled", - "receiveIPv6PacketInfoEnabled", - "hdrIncludedEnabled", - "v6OnlyEnabled", - "quickAckEnabled", - "delayOptionEnabled", - "corkOptionEnabled", - "receiveOriginalDstAddress", - "ipv4RecvErrEnabled", - "ipv6RecvErrEnabled", - "errQueue", - "bindToDevice", - "sendBufferSize", - "receiveBufferSize", - "linger", - "rcvlowat", - } -} - -func (so *SocketOptions) beforeSave() {} - -// +checklocksignore -func (so *SocketOptions) StateSave(stateSinkObject state.Sink) { - so.beforeSave() - stateSinkObject.Save(0, &so.handler) - stateSinkObject.Save(1, &so.broadcastEnabled) - stateSinkObject.Save(2, &so.passCredEnabled) - stateSinkObject.Save(3, &so.noChecksumEnabled) - stateSinkObject.Save(4, &so.reuseAddressEnabled) - stateSinkObject.Save(5, &so.reusePortEnabled) - stateSinkObject.Save(6, &so.keepAliveEnabled) - stateSinkObject.Save(7, &so.multicastLoopEnabled) - stateSinkObject.Save(8, &so.receiveTOSEnabled) - stateSinkObject.Save(9, &so.receiveTTLEnabled) - stateSinkObject.Save(10, &so.receiveHopLimitEnabled) - stateSinkObject.Save(11, &so.receiveTClassEnabled) - stateSinkObject.Save(12, &so.receivePacketInfoEnabled) - stateSinkObject.Save(13, &so.receiveIPv6PacketInfoEnabled) - stateSinkObject.Save(14, &so.hdrIncludedEnabled) - stateSinkObject.Save(15, &so.v6OnlyEnabled) - stateSinkObject.Save(16, &so.quickAckEnabled) - stateSinkObject.Save(17, &so.delayOptionEnabled) - stateSinkObject.Save(18, &so.corkOptionEnabled) - stateSinkObject.Save(19, &so.receiveOriginalDstAddress) - stateSinkObject.Save(20, &so.ipv4RecvErrEnabled) - stateSinkObject.Save(21, &so.ipv6RecvErrEnabled) - stateSinkObject.Save(22, &so.errQueue) - stateSinkObject.Save(23, &so.bindToDevice) - stateSinkObject.Save(24, &so.sendBufferSize) - stateSinkObject.Save(25, &so.receiveBufferSize) - stateSinkObject.Save(26, &so.linger) - stateSinkObject.Save(27, &so.rcvlowat) -} - -func (so *SocketOptions) afterLoad(context.Context) {} - -// +checklocksignore -func (so *SocketOptions) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &so.handler) - stateSourceObject.Load(1, &so.broadcastEnabled) - stateSourceObject.Load(2, &so.passCredEnabled) - stateSourceObject.Load(3, &so.noChecksumEnabled) - stateSourceObject.Load(4, &so.reuseAddressEnabled) - stateSourceObject.Load(5, &so.reusePortEnabled) - stateSourceObject.Load(6, &so.keepAliveEnabled) - stateSourceObject.Load(7, &so.multicastLoopEnabled) - stateSourceObject.Load(8, &so.receiveTOSEnabled) - stateSourceObject.Load(9, &so.receiveTTLEnabled) - stateSourceObject.Load(10, &so.receiveHopLimitEnabled) - stateSourceObject.Load(11, &so.receiveTClassEnabled) - stateSourceObject.Load(12, &so.receivePacketInfoEnabled) - stateSourceObject.Load(13, &so.receiveIPv6PacketInfoEnabled) - stateSourceObject.Load(14, &so.hdrIncludedEnabled) - stateSourceObject.Load(15, &so.v6OnlyEnabled) - stateSourceObject.Load(16, &so.quickAckEnabled) - stateSourceObject.Load(17, &so.delayOptionEnabled) - stateSourceObject.Load(18, &so.corkOptionEnabled) - stateSourceObject.Load(19, &so.receiveOriginalDstAddress) - stateSourceObject.Load(20, &so.ipv4RecvErrEnabled) - stateSourceObject.Load(21, &so.ipv6RecvErrEnabled) - stateSourceObject.Load(22, &so.errQueue) - stateSourceObject.Load(23, &so.bindToDevice) - stateSourceObject.Load(24, &so.sendBufferSize) - stateSourceObject.Load(25, &so.receiveBufferSize) - stateSourceObject.Load(26, &so.linger) - stateSourceObject.Load(27, &so.rcvlowat) -} - -func (l *LocalSockError) StateTypeName() string { - return "pkg/tcpip.LocalSockError" -} - -func (l *LocalSockError) StateFields() []string { - return []string{ - "info", - } -} - -func (l *LocalSockError) beforeSave() {} - -// +checklocksignore -func (l *LocalSockError) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.info) -} - -func (l *LocalSockError) afterLoad(context.Context) {} - -// +checklocksignore -func (l *LocalSockError) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.info) -} - -func (s *SockError) StateTypeName() string { - return "pkg/tcpip.SockError" -} - -func (s *SockError) StateFields() []string { - return []string{ - "sockErrorEntry", - "Err", - "Cause", - "Payload", - "Dst", - "Offender", - "NetProto", - } -} - -func (s *SockError) beforeSave() {} - -// +checklocksignore -func (s *SockError) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.sockErrorEntry) - stateSinkObject.Save(1, &s.Err) - stateSinkObject.Save(2, &s.Cause) - stateSinkObject.Save(3, &s.Payload) - stateSinkObject.Save(4, &s.Dst) - stateSinkObject.Save(5, &s.Offender) - stateSinkObject.Save(6, &s.NetProto) -} - -func (s *SockError) afterLoad(context.Context) {} - -// +checklocksignore -func (s *SockError) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.sockErrorEntry) - stateSourceObject.Load(1, &s.Err) - stateSourceObject.Load(2, &s.Cause) - stateSourceObject.Load(3, &s.Payload) - stateSourceObject.Load(4, &s.Dst) - stateSourceObject.Load(5, &s.Offender) - stateSourceObject.Load(6, &s.NetProto) -} - -func (s *stdClock) StateTypeName() string { - return "pkg/tcpip.stdClock" -} - -func (s *stdClock) StateFields() []string { - return []string{ - "monotonicOffset", - } -} - -// +checklocksignore -func (s *stdClock) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.monotonicOffset) -} - -// +checklocksignore -func (s *stdClock) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.monotonicOffset) - stateSourceObject.AfterLoad(func() { s.afterLoad(ctx) }) -} - -func (st *stdTimer) StateTypeName() string { - return "pkg/tcpip.stdTimer" -} - -func (st *stdTimer) StateFields() []string { - return []string{ - "t", - } -} - -func (st *stdTimer) beforeSave() {} - -// +checklocksignore -func (st *stdTimer) StateSave(stateSinkObject state.Sink) { - st.beforeSave() - stateSinkObject.Save(0, &st.t) -} - -func (st *stdTimer) afterLoad(context.Context) {} - -// +checklocksignore -func (st *stdTimer) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &st.t) -} - -func (mt *MonotonicTime) StateTypeName() string { - return "pkg/tcpip.MonotonicTime" -} - -func (mt *MonotonicTime) StateFields() []string { - return []string{ - "nanoseconds", - } -} - -func (mt *MonotonicTime) beforeSave() {} - -// +checklocksignore -func (mt *MonotonicTime) StateSave(stateSinkObject state.Sink) { - mt.beforeSave() - stateSinkObject.Save(0, &mt.nanoseconds) -} - -func (mt *MonotonicTime) afterLoad(context.Context) {} - -// +checklocksignore -func (mt *MonotonicTime) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &mt.nanoseconds) -} - -func (a *Address) StateTypeName() string { - return "pkg/tcpip.Address" -} - -func (a *Address) StateFields() []string { - return []string{ - "addr", - "length", - } -} - -func (a *Address) beforeSave() {} - -// +checklocksignore -func (a *Address) StateSave(stateSinkObject state.Sink) { - a.beforeSave() - stateSinkObject.Save(0, &a.addr) - stateSinkObject.Save(1, &a.length) -} - -func (a *Address) afterLoad(context.Context) {} - -// +checklocksignore -func (a *Address) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &a.addr) - stateSourceObject.Load(1, &a.length) -} - -func (m *AddressMask) StateTypeName() string { - return "pkg/tcpip.AddressMask" -} - -func (m *AddressMask) StateFields() []string { - return []string{ - "mask", - "length", - } -} - -func (m *AddressMask) beforeSave() {} - -// +checklocksignore -func (m *AddressMask) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.mask) - stateSinkObject.Save(1, &m.length) -} - -func (m *AddressMask) afterLoad(context.Context) {} - -// +checklocksignore -func (m *AddressMask) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.mask) - stateSourceObject.Load(1, &m.length) -} - -func (s *Subnet) StateTypeName() string { - return "pkg/tcpip.Subnet" -} - -func (s *Subnet) StateFields() []string { - return []string{ - "address", - "mask", - } -} - -func (s *Subnet) beforeSave() {} - -// +checklocksignore -func (s *Subnet) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.address) - stateSinkObject.Save(1, &s.mask) -} - -func (s *Subnet) afterLoad(context.Context) {} - -// +checklocksignore -func (s *Subnet) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.address) - stateSourceObject.Load(1, &s.mask) -} - -func (f *FullAddress) StateTypeName() string { - return "pkg/tcpip.FullAddress" -} - -func (f *FullAddress) StateFields() []string { - return []string{ - "NIC", - "Addr", - "Port", - "LinkAddr", - } -} - -func (f *FullAddress) beforeSave() {} - -// +checklocksignore -func (f *FullAddress) StateSave(stateSinkObject state.Sink) { - f.beforeSave() - stateSinkObject.Save(0, &f.NIC) - stateSinkObject.Save(1, &f.Addr) - stateSinkObject.Save(2, &f.Port) - stateSinkObject.Save(3, &f.LinkAddr) -} - -func (f *FullAddress) afterLoad(context.Context) {} - -// +checklocksignore -func (f *FullAddress) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &f.NIC) - stateSourceObject.Load(1, &f.Addr) - stateSourceObject.Load(2, &f.Port) - stateSourceObject.Load(3, &f.LinkAddr) -} - -func (s *SendableControlMessages) StateTypeName() string { - return "pkg/tcpip.SendableControlMessages" -} - -func (s *SendableControlMessages) StateFields() []string { - return []string{ - "HasTTL", - "TTL", - "HasHopLimit", - "HopLimit", - "HasIPv6PacketInfo", - "IPv6PacketInfo", - } -} - -func (s *SendableControlMessages) beforeSave() {} - -// +checklocksignore -func (s *SendableControlMessages) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.HasTTL) - stateSinkObject.Save(1, &s.TTL) - stateSinkObject.Save(2, &s.HasHopLimit) - stateSinkObject.Save(3, &s.HopLimit) - stateSinkObject.Save(4, &s.HasIPv6PacketInfo) - stateSinkObject.Save(5, &s.IPv6PacketInfo) -} - -func (s *SendableControlMessages) afterLoad(context.Context) {} - -// +checklocksignore -func (s *SendableControlMessages) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.HasTTL) - stateSourceObject.Load(1, &s.TTL) - stateSourceObject.Load(2, &s.HasHopLimit) - stateSourceObject.Load(3, &s.HopLimit) - stateSourceObject.Load(4, &s.HasIPv6PacketInfo) - stateSourceObject.Load(5, &s.IPv6PacketInfo) -} - -func (c *ReceivableControlMessages) StateTypeName() string { - return "pkg/tcpip.ReceivableControlMessages" -} - -func (c *ReceivableControlMessages) StateFields() []string { - return []string{ - "Timestamp", - "HasInq", - "Inq", - "HasTOS", - "TOS", - "HasTTL", - "TTL", - "HasHopLimit", - "HopLimit", - "HasTimestamp", - "HasTClass", - "TClass", - "HasIPPacketInfo", - "PacketInfo", - "HasIPv6PacketInfo", - "IPv6PacketInfo", - "HasOriginalDstAddress", - "OriginalDstAddress", - "SockErr", - } -} - -func (c *ReceivableControlMessages) beforeSave() {} - -// +checklocksignore -func (c *ReceivableControlMessages) StateSave(stateSinkObject state.Sink) { - c.beforeSave() - var TimestampValue int64 - TimestampValue = c.saveTimestamp() - stateSinkObject.SaveValue(0, TimestampValue) - stateSinkObject.Save(1, &c.HasInq) - stateSinkObject.Save(2, &c.Inq) - stateSinkObject.Save(3, &c.HasTOS) - stateSinkObject.Save(4, &c.TOS) - stateSinkObject.Save(5, &c.HasTTL) - stateSinkObject.Save(6, &c.TTL) - stateSinkObject.Save(7, &c.HasHopLimit) - stateSinkObject.Save(8, &c.HopLimit) - stateSinkObject.Save(9, &c.HasTimestamp) - stateSinkObject.Save(10, &c.HasTClass) - stateSinkObject.Save(11, &c.TClass) - stateSinkObject.Save(12, &c.HasIPPacketInfo) - stateSinkObject.Save(13, &c.PacketInfo) - stateSinkObject.Save(14, &c.HasIPv6PacketInfo) - stateSinkObject.Save(15, &c.IPv6PacketInfo) - stateSinkObject.Save(16, &c.HasOriginalDstAddress) - stateSinkObject.Save(17, &c.OriginalDstAddress) - stateSinkObject.Save(18, &c.SockErr) -} - -func (c *ReceivableControlMessages) afterLoad(context.Context) {} - -// +checklocksignore -func (c *ReceivableControlMessages) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(1, &c.HasInq) - stateSourceObject.Load(2, &c.Inq) - stateSourceObject.Load(3, &c.HasTOS) - stateSourceObject.Load(4, &c.TOS) - stateSourceObject.Load(5, &c.HasTTL) - stateSourceObject.Load(6, &c.TTL) - stateSourceObject.Load(7, &c.HasHopLimit) - stateSourceObject.Load(8, &c.HopLimit) - stateSourceObject.Load(9, &c.HasTimestamp) - stateSourceObject.Load(10, &c.HasTClass) - stateSourceObject.Load(11, &c.TClass) - stateSourceObject.Load(12, &c.HasIPPacketInfo) - stateSourceObject.Load(13, &c.PacketInfo) - stateSourceObject.Load(14, &c.HasIPv6PacketInfo) - stateSourceObject.Load(15, &c.IPv6PacketInfo) - stateSourceObject.Load(16, &c.HasOriginalDstAddress) - stateSourceObject.Load(17, &c.OriginalDstAddress) - stateSourceObject.Load(18, &c.SockErr) - stateSourceObject.LoadValue(0, new(int64), func(y any) { c.loadTimestamp(ctx, y.(int64)) }) -} - -func (l *LinkPacketInfo) StateTypeName() string { - return "pkg/tcpip.LinkPacketInfo" -} - -func (l *LinkPacketInfo) StateFields() []string { - return []string{ - "Protocol", - "PktType", - } -} - -func (l *LinkPacketInfo) beforeSave() {} - -// +checklocksignore -func (l *LinkPacketInfo) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.Protocol) - stateSinkObject.Save(1, &l.PktType) -} - -func (l *LinkPacketInfo) afterLoad(context.Context) {} - -// +checklocksignore -func (l *LinkPacketInfo) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.Protocol) - stateSourceObject.Load(1, &l.PktType) -} - -func (t *TCPSendBufferSizeRangeOption) StateTypeName() string { - return "pkg/tcpip.TCPSendBufferSizeRangeOption" -} - -func (t *TCPSendBufferSizeRangeOption) StateFields() []string { - return []string{ - "Min", - "Default", - "Max", - } -} - -func (t *TCPSendBufferSizeRangeOption) beforeSave() {} - -// +checklocksignore -func (t *TCPSendBufferSizeRangeOption) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.Min) - stateSinkObject.Save(1, &t.Default) - stateSinkObject.Save(2, &t.Max) -} - -func (t *TCPSendBufferSizeRangeOption) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPSendBufferSizeRangeOption) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.Min) - stateSourceObject.Load(1, &t.Default) - stateSourceObject.Load(2, &t.Max) -} - -func (t *TCPReceiveBufferSizeRangeOption) StateTypeName() string { - return "pkg/tcpip.TCPReceiveBufferSizeRangeOption" -} - -func (t *TCPReceiveBufferSizeRangeOption) StateFields() []string { - return []string{ - "Min", - "Default", - "Max", - } -} - -func (t *TCPReceiveBufferSizeRangeOption) beforeSave() {} - -// +checklocksignore -func (t *TCPReceiveBufferSizeRangeOption) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.Min) - stateSinkObject.Save(1, &t.Default) - stateSinkObject.Save(2, &t.Max) -} - -func (t *TCPReceiveBufferSizeRangeOption) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPReceiveBufferSizeRangeOption) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.Min) - stateSourceObject.Load(1, &t.Default) - stateSourceObject.Load(2, &t.Max) -} - -func (f *ICMPv6Filter) StateTypeName() string { - return "pkg/tcpip.ICMPv6Filter" -} - -func (f *ICMPv6Filter) StateFields() []string { - return []string{ - "DenyType", - } -} - -func (f *ICMPv6Filter) beforeSave() {} - -// +checklocksignore -func (f *ICMPv6Filter) StateSave(stateSinkObject state.Sink) { - f.beforeSave() - stateSinkObject.Save(0, &f.DenyType) -} - -func (f *ICMPv6Filter) afterLoad(context.Context) {} - -// +checklocksignore -func (f *ICMPv6Filter) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &f.DenyType) -} - -func (l *LingerOption) StateTypeName() string { - return "pkg/tcpip.LingerOption" -} - -func (l *LingerOption) StateFields() []string { - return []string{ - "Enabled", - "Timeout", - } -} - -func (l *LingerOption) beforeSave() {} - -// +checklocksignore -func (l *LingerOption) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.Enabled) - stateSinkObject.Save(1, &l.Timeout) -} - -func (l *LingerOption) afterLoad(context.Context) {} - -// +checklocksignore -func (l *LingerOption) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.Enabled) - stateSourceObject.Load(1, &l.Timeout) -} - -func (i *IPPacketInfo) StateTypeName() string { - return "pkg/tcpip.IPPacketInfo" -} - -func (i *IPPacketInfo) StateFields() []string { - return []string{ - "NIC", - "LocalAddr", - "DestinationAddr", - } -} - -func (i *IPPacketInfo) beforeSave() {} - -// +checklocksignore -func (i *IPPacketInfo) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.NIC) - stateSinkObject.Save(1, &i.LocalAddr) - stateSinkObject.Save(2, &i.DestinationAddr) -} - -func (i *IPPacketInfo) afterLoad(context.Context) {} - -// +checklocksignore -func (i *IPPacketInfo) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.NIC) - stateSourceObject.Load(1, &i.LocalAddr) - stateSourceObject.Load(2, &i.DestinationAddr) -} - -func (i *IPv6PacketInfo) StateTypeName() string { - return "pkg/tcpip.IPv6PacketInfo" -} - -func (i *IPv6PacketInfo) StateFields() []string { - return []string{ - "Addr", - "NIC", - } -} - -func (i *IPv6PacketInfo) beforeSave() {} - -// +checklocksignore -func (i *IPv6PacketInfo) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.Addr) - stateSinkObject.Save(1, &i.NIC) -} - -func (i *IPv6PacketInfo) afterLoad(context.Context) {} - -// +checklocksignore -func (i *IPv6PacketInfo) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.Addr) - stateSourceObject.Load(1, &i.NIC) -} - -func (s *SendBufferSizeOption) StateTypeName() string { - return "pkg/tcpip.SendBufferSizeOption" -} - -func (s *SendBufferSizeOption) StateFields() []string { - return []string{ - "Min", - "Default", - "Max", - } -} - -func (s *SendBufferSizeOption) beforeSave() {} - -// +checklocksignore -func (s *SendBufferSizeOption) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.Min) - stateSinkObject.Save(1, &s.Default) - stateSinkObject.Save(2, &s.Max) -} - -func (s *SendBufferSizeOption) afterLoad(context.Context) {} - -// +checklocksignore -func (s *SendBufferSizeOption) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.Min) - stateSourceObject.Load(1, &s.Default) - stateSourceObject.Load(2, &s.Max) -} - -func (r *ReceiveBufferSizeOption) StateTypeName() string { - return "pkg/tcpip.ReceiveBufferSizeOption" -} - -func (r *ReceiveBufferSizeOption) StateFields() []string { - return []string{ - "Min", - "Default", - "Max", - } -} - -func (r *ReceiveBufferSizeOption) beforeSave() {} - -// +checklocksignore -func (r *ReceiveBufferSizeOption) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.Min) - stateSinkObject.Save(1, &r.Default) - stateSinkObject.Save(2, &r.Max) -} - -func (r *ReceiveBufferSizeOption) afterLoad(context.Context) {} - -// +checklocksignore -func (r *ReceiveBufferSizeOption) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.Min) - stateSourceObject.Load(1, &r.Default) - stateSourceObject.Load(2, &r.Max) -} - -func (r *Route) StateTypeName() string { - return "pkg/tcpip.Route" -} - -func (r *Route) StateFields() []string { - return []string{ - "RouteEntry", - "Destination", - "Gateway", - "NIC", - "SourceHint", - "MTU", - } -} - -func (r *Route) beforeSave() {} - -// +checklocksignore -func (r *Route) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.RouteEntry) - stateSinkObject.Save(1, &r.Destination) - stateSinkObject.Save(2, &r.Gateway) - stateSinkObject.Save(3, &r.NIC) - stateSinkObject.Save(4, &r.SourceHint) - stateSinkObject.Save(5, &r.MTU) -} - -func (r *Route) afterLoad(context.Context) {} - -// +checklocksignore -func (r *Route) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.RouteEntry) - stateSourceObject.Load(1, &r.Destination) - stateSourceObject.Load(2, &r.Gateway) - stateSourceObject.Load(3, &r.NIC) - stateSourceObject.Load(4, &r.SourceHint) - stateSourceObject.Load(5, &r.MTU) -} - -func (s *StatCounter) StateTypeName() string { - return "pkg/tcpip.StatCounter" -} - -func (s *StatCounter) StateFields() []string { - return []string{ - "count", - } -} - -func (s *StatCounter) beforeSave() {} - -// +checklocksignore -func (s *StatCounter) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.count) -} - -func (s *StatCounter) afterLoad(context.Context) {} - -// +checklocksignore -func (s *StatCounter) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.count) -} - -func (m *MultiCounterStat) StateTypeName() string { - return "pkg/tcpip.MultiCounterStat" -} - -func (m *MultiCounterStat) StateFields() []string { - return []string{ - "a", - "b", - } -} - -func (m *MultiCounterStat) beforeSave() {} - -// +checklocksignore -func (m *MultiCounterStat) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.a) - stateSinkObject.Save(1, &m.b) -} - -func (m *MultiCounterStat) afterLoad(context.Context) {} - -// +checklocksignore -func (m *MultiCounterStat) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.a) - stateSourceObject.Load(1, &m.b) -} - -func (i *ICMPv4PacketStats) StateTypeName() string { - return "pkg/tcpip.ICMPv4PacketStats" -} - -func (i *ICMPv4PacketStats) StateFields() []string { - return []string{ - "EchoRequest", - "EchoReply", - "DstUnreachable", - "SrcQuench", - "Redirect", - "TimeExceeded", - "ParamProblem", - "Timestamp", - "TimestampReply", - "InfoRequest", - "InfoReply", - } -} - -func (i *ICMPv4PacketStats) beforeSave() {} - -// +checklocksignore -func (i *ICMPv4PacketStats) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.EchoRequest) - stateSinkObject.Save(1, &i.EchoReply) - stateSinkObject.Save(2, &i.DstUnreachable) - stateSinkObject.Save(3, &i.SrcQuench) - stateSinkObject.Save(4, &i.Redirect) - stateSinkObject.Save(5, &i.TimeExceeded) - stateSinkObject.Save(6, &i.ParamProblem) - stateSinkObject.Save(7, &i.Timestamp) - stateSinkObject.Save(8, &i.TimestampReply) - stateSinkObject.Save(9, &i.InfoRequest) - stateSinkObject.Save(10, &i.InfoReply) -} - -func (i *ICMPv4PacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (i *ICMPv4PacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.EchoRequest) - stateSourceObject.Load(1, &i.EchoReply) - stateSourceObject.Load(2, &i.DstUnreachable) - stateSourceObject.Load(3, &i.SrcQuench) - stateSourceObject.Load(4, &i.Redirect) - stateSourceObject.Load(5, &i.TimeExceeded) - stateSourceObject.Load(6, &i.ParamProblem) - stateSourceObject.Load(7, &i.Timestamp) - stateSourceObject.Load(8, &i.TimestampReply) - stateSourceObject.Load(9, &i.InfoRequest) - stateSourceObject.Load(10, &i.InfoReply) -} - -func (i *ICMPv4SentPacketStats) StateTypeName() string { - return "pkg/tcpip.ICMPv4SentPacketStats" -} - -func (i *ICMPv4SentPacketStats) StateFields() []string { - return []string{ - "ICMPv4PacketStats", - "Dropped", - "RateLimited", - } -} - -func (i *ICMPv4SentPacketStats) beforeSave() {} - -// +checklocksignore -func (i *ICMPv4SentPacketStats) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.ICMPv4PacketStats) - stateSinkObject.Save(1, &i.Dropped) - stateSinkObject.Save(2, &i.RateLimited) -} - -func (i *ICMPv4SentPacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (i *ICMPv4SentPacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.ICMPv4PacketStats) - stateSourceObject.Load(1, &i.Dropped) - stateSourceObject.Load(2, &i.RateLimited) -} - -func (i *ICMPv4ReceivedPacketStats) StateTypeName() string { - return "pkg/tcpip.ICMPv4ReceivedPacketStats" -} - -func (i *ICMPv4ReceivedPacketStats) StateFields() []string { - return []string{ - "ICMPv4PacketStats", - "Invalid", - } -} - -func (i *ICMPv4ReceivedPacketStats) beforeSave() {} - -// +checklocksignore -func (i *ICMPv4ReceivedPacketStats) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.ICMPv4PacketStats) - stateSinkObject.Save(1, &i.Invalid) -} - -func (i *ICMPv4ReceivedPacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (i *ICMPv4ReceivedPacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.ICMPv4PacketStats) - stateSourceObject.Load(1, &i.Invalid) -} - -func (i *ICMPv4Stats) StateTypeName() string { - return "pkg/tcpip.ICMPv4Stats" -} - -func (i *ICMPv4Stats) StateFields() []string { - return []string{ - "PacketsSent", - "PacketsReceived", - } -} - -func (i *ICMPv4Stats) beforeSave() {} - -// +checklocksignore -func (i *ICMPv4Stats) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.PacketsSent) - stateSinkObject.Save(1, &i.PacketsReceived) -} - -func (i *ICMPv4Stats) afterLoad(context.Context) {} - -// +checklocksignore -func (i *ICMPv4Stats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.PacketsSent) - stateSourceObject.Load(1, &i.PacketsReceived) -} - -func (i *ICMPv6PacketStats) StateTypeName() string { - return "pkg/tcpip.ICMPv6PacketStats" -} - -func (i *ICMPv6PacketStats) StateFields() []string { - return []string{ - "EchoRequest", - "EchoReply", - "DstUnreachable", - "PacketTooBig", - "TimeExceeded", - "ParamProblem", - "RouterSolicit", - "RouterAdvert", - "NeighborSolicit", - "NeighborAdvert", - "RedirectMsg", - "MulticastListenerQuery", - "MulticastListenerReport", - "MulticastListenerReportV2", - "MulticastListenerDone", - } -} - -func (i *ICMPv6PacketStats) beforeSave() {} - -// +checklocksignore -func (i *ICMPv6PacketStats) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.EchoRequest) - stateSinkObject.Save(1, &i.EchoReply) - stateSinkObject.Save(2, &i.DstUnreachable) - stateSinkObject.Save(3, &i.PacketTooBig) - stateSinkObject.Save(4, &i.TimeExceeded) - stateSinkObject.Save(5, &i.ParamProblem) - stateSinkObject.Save(6, &i.RouterSolicit) - stateSinkObject.Save(7, &i.RouterAdvert) - stateSinkObject.Save(8, &i.NeighborSolicit) - stateSinkObject.Save(9, &i.NeighborAdvert) - stateSinkObject.Save(10, &i.RedirectMsg) - stateSinkObject.Save(11, &i.MulticastListenerQuery) - stateSinkObject.Save(12, &i.MulticastListenerReport) - stateSinkObject.Save(13, &i.MulticastListenerReportV2) - stateSinkObject.Save(14, &i.MulticastListenerDone) -} - -func (i *ICMPv6PacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (i *ICMPv6PacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.EchoRequest) - stateSourceObject.Load(1, &i.EchoReply) - stateSourceObject.Load(2, &i.DstUnreachable) - stateSourceObject.Load(3, &i.PacketTooBig) - stateSourceObject.Load(4, &i.TimeExceeded) - stateSourceObject.Load(5, &i.ParamProblem) - stateSourceObject.Load(6, &i.RouterSolicit) - stateSourceObject.Load(7, &i.RouterAdvert) - stateSourceObject.Load(8, &i.NeighborSolicit) - stateSourceObject.Load(9, &i.NeighborAdvert) - stateSourceObject.Load(10, &i.RedirectMsg) - stateSourceObject.Load(11, &i.MulticastListenerQuery) - stateSourceObject.Load(12, &i.MulticastListenerReport) - stateSourceObject.Load(13, &i.MulticastListenerReportV2) - stateSourceObject.Load(14, &i.MulticastListenerDone) -} - -func (i *ICMPv6SentPacketStats) StateTypeName() string { - return "pkg/tcpip.ICMPv6SentPacketStats" -} - -func (i *ICMPv6SentPacketStats) StateFields() []string { - return []string{ - "ICMPv6PacketStats", - "Dropped", - "RateLimited", - } -} - -func (i *ICMPv6SentPacketStats) beforeSave() {} - -// +checklocksignore -func (i *ICMPv6SentPacketStats) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.ICMPv6PacketStats) - stateSinkObject.Save(1, &i.Dropped) - stateSinkObject.Save(2, &i.RateLimited) -} - -func (i *ICMPv6SentPacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (i *ICMPv6SentPacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.ICMPv6PacketStats) - stateSourceObject.Load(1, &i.Dropped) - stateSourceObject.Load(2, &i.RateLimited) -} - -func (i *ICMPv6ReceivedPacketStats) StateTypeName() string { - return "pkg/tcpip.ICMPv6ReceivedPacketStats" -} - -func (i *ICMPv6ReceivedPacketStats) StateFields() []string { - return []string{ - "ICMPv6PacketStats", - "Unrecognized", - "Invalid", - "RouterOnlyPacketsDroppedByHost", - } -} - -func (i *ICMPv6ReceivedPacketStats) beforeSave() {} - -// +checklocksignore -func (i *ICMPv6ReceivedPacketStats) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.ICMPv6PacketStats) - stateSinkObject.Save(1, &i.Unrecognized) - stateSinkObject.Save(2, &i.Invalid) - stateSinkObject.Save(3, &i.RouterOnlyPacketsDroppedByHost) -} - -func (i *ICMPv6ReceivedPacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (i *ICMPv6ReceivedPacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.ICMPv6PacketStats) - stateSourceObject.Load(1, &i.Unrecognized) - stateSourceObject.Load(2, &i.Invalid) - stateSourceObject.Load(3, &i.RouterOnlyPacketsDroppedByHost) -} - -func (i *ICMPv6Stats) StateTypeName() string { - return "pkg/tcpip.ICMPv6Stats" -} - -func (i *ICMPv6Stats) StateFields() []string { - return []string{ - "PacketsSent", - "PacketsReceived", - } -} - -func (i *ICMPv6Stats) beforeSave() {} - -// +checklocksignore -func (i *ICMPv6Stats) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.PacketsSent) - stateSinkObject.Save(1, &i.PacketsReceived) -} - -func (i *ICMPv6Stats) afterLoad(context.Context) {} - -// +checklocksignore -func (i *ICMPv6Stats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.PacketsSent) - stateSourceObject.Load(1, &i.PacketsReceived) -} - -func (i *ICMPStats) StateTypeName() string { - return "pkg/tcpip.ICMPStats" -} - -func (i *ICMPStats) StateFields() []string { - return []string{ - "V4", - "V6", - } -} - -func (i *ICMPStats) beforeSave() {} - -// +checklocksignore -func (i *ICMPStats) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.V4) - stateSinkObject.Save(1, &i.V6) -} - -func (i *ICMPStats) afterLoad(context.Context) {} - -// +checklocksignore -func (i *ICMPStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.V4) - stateSourceObject.Load(1, &i.V6) -} - -func (i *IGMPPacketStats) StateTypeName() string { - return "pkg/tcpip.IGMPPacketStats" -} - -func (i *IGMPPacketStats) StateFields() []string { - return []string{ - "MembershipQuery", - "V1MembershipReport", - "V2MembershipReport", - "V3MembershipReport", - "LeaveGroup", - } -} - -func (i *IGMPPacketStats) beforeSave() {} - -// +checklocksignore -func (i *IGMPPacketStats) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.MembershipQuery) - stateSinkObject.Save(1, &i.V1MembershipReport) - stateSinkObject.Save(2, &i.V2MembershipReport) - stateSinkObject.Save(3, &i.V3MembershipReport) - stateSinkObject.Save(4, &i.LeaveGroup) -} - -func (i *IGMPPacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (i *IGMPPacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.MembershipQuery) - stateSourceObject.Load(1, &i.V1MembershipReport) - stateSourceObject.Load(2, &i.V2MembershipReport) - stateSourceObject.Load(3, &i.V3MembershipReport) - stateSourceObject.Load(4, &i.LeaveGroup) -} - -func (i *IGMPSentPacketStats) StateTypeName() string { - return "pkg/tcpip.IGMPSentPacketStats" -} - -func (i *IGMPSentPacketStats) StateFields() []string { - return []string{ - "IGMPPacketStats", - "Dropped", - } -} - -func (i *IGMPSentPacketStats) beforeSave() {} - -// +checklocksignore -func (i *IGMPSentPacketStats) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.IGMPPacketStats) - stateSinkObject.Save(1, &i.Dropped) -} - -func (i *IGMPSentPacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (i *IGMPSentPacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.IGMPPacketStats) - stateSourceObject.Load(1, &i.Dropped) -} - -func (i *IGMPReceivedPacketStats) StateTypeName() string { - return "pkg/tcpip.IGMPReceivedPacketStats" -} - -func (i *IGMPReceivedPacketStats) StateFields() []string { - return []string{ - "IGMPPacketStats", - "Invalid", - "ChecksumErrors", - "Unrecognized", - } -} - -func (i *IGMPReceivedPacketStats) beforeSave() {} - -// +checklocksignore -func (i *IGMPReceivedPacketStats) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.IGMPPacketStats) - stateSinkObject.Save(1, &i.Invalid) - stateSinkObject.Save(2, &i.ChecksumErrors) - stateSinkObject.Save(3, &i.Unrecognized) -} - -func (i *IGMPReceivedPacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (i *IGMPReceivedPacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.IGMPPacketStats) - stateSourceObject.Load(1, &i.Invalid) - stateSourceObject.Load(2, &i.ChecksumErrors) - stateSourceObject.Load(3, &i.Unrecognized) -} - -func (i *IGMPStats) StateTypeName() string { - return "pkg/tcpip.IGMPStats" -} - -func (i *IGMPStats) StateFields() []string { - return []string{ - "PacketsSent", - "PacketsReceived", - } -} - -func (i *IGMPStats) beforeSave() {} - -// +checklocksignore -func (i *IGMPStats) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.PacketsSent) - stateSinkObject.Save(1, &i.PacketsReceived) -} - -func (i *IGMPStats) afterLoad(context.Context) {} - -// +checklocksignore -func (i *IGMPStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.PacketsSent) - stateSourceObject.Load(1, &i.PacketsReceived) -} - -func (i *IPForwardingStats) StateTypeName() string { - return "pkg/tcpip.IPForwardingStats" -} - -func (i *IPForwardingStats) StateFields() []string { - return []string{ - "Unrouteable", - "ExhaustedTTL", - "InitializingSource", - "LinkLocalSource", - "LinkLocalDestination", - "PacketTooBig", - "HostUnreachable", - "ExtensionHeaderProblem", - "UnexpectedMulticastInputInterface", - "UnknownOutputEndpoint", - "NoMulticastPendingQueueBufferSpace", - "OutgoingDeviceNoBufferSpace", - "Errors", - } -} - -func (i *IPForwardingStats) beforeSave() {} - -// +checklocksignore -func (i *IPForwardingStats) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.Unrouteable) - stateSinkObject.Save(1, &i.ExhaustedTTL) - stateSinkObject.Save(2, &i.InitializingSource) - stateSinkObject.Save(3, &i.LinkLocalSource) - stateSinkObject.Save(4, &i.LinkLocalDestination) - stateSinkObject.Save(5, &i.PacketTooBig) - stateSinkObject.Save(6, &i.HostUnreachable) - stateSinkObject.Save(7, &i.ExtensionHeaderProblem) - stateSinkObject.Save(8, &i.UnexpectedMulticastInputInterface) - stateSinkObject.Save(9, &i.UnknownOutputEndpoint) - stateSinkObject.Save(10, &i.NoMulticastPendingQueueBufferSpace) - stateSinkObject.Save(11, &i.OutgoingDeviceNoBufferSpace) - stateSinkObject.Save(12, &i.Errors) -} - -func (i *IPForwardingStats) afterLoad(context.Context) {} - -// +checklocksignore -func (i *IPForwardingStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.Unrouteable) - stateSourceObject.Load(1, &i.ExhaustedTTL) - stateSourceObject.Load(2, &i.InitializingSource) - stateSourceObject.Load(3, &i.LinkLocalSource) - stateSourceObject.Load(4, &i.LinkLocalDestination) - stateSourceObject.Load(5, &i.PacketTooBig) - stateSourceObject.Load(6, &i.HostUnreachable) - stateSourceObject.Load(7, &i.ExtensionHeaderProblem) - stateSourceObject.Load(8, &i.UnexpectedMulticastInputInterface) - stateSourceObject.Load(9, &i.UnknownOutputEndpoint) - stateSourceObject.Load(10, &i.NoMulticastPendingQueueBufferSpace) - stateSourceObject.Load(11, &i.OutgoingDeviceNoBufferSpace) - stateSourceObject.Load(12, &i.Errors) -} - -func (i *IPStats) StateTypeName() string { - return "pkg/tcpip.IPStats" -} - -func (i *IPStats) StateFields() []string { - return []string{ - "PacketsReceived", - "ValidPacketsReceived", - "DisabledPacketsReceived", - "InvalidDestinationAddressesReceived", - "InvalidSourceAddressesReceived", - "PacketsDelivered", - "PacketsSent", - "OutgoingPacketErrors", - "MalformedPacketsReceived", - "MalformedFragmentsReceived", - "IPTablesPreroutingDropped", - "IPTablesInputDropped", - "IPTablesForwardDropped", - "IPTablesOutputDropped", - "IPTablesPostroutingDropped", - "OptionTimestampReceived", - "OptionRecordRouteReceived", - "OptionRouterAlertReceived", - "OptionUnknownReceived", - "Forwarding", - } -} - -func (i *IPStats) beforeSave() {} - -// +checklocksignore -func (i *IPStats) StateSave(stateSinkObject state.Sink) { - i.beforeSave() - stateSinkObject.Save(0, &i.PacketsReceived) - stateSinkObject.Save(1, &i.ValidPacketsReceived) - stateSinkObject.Save(2, &i.DisabledPacketsReceived) - stateSinkObject.Save(3, &i.InvalidDestinationAddressesReceived) - stateSinkObject.Save(4, &i.InvalidSourceAddressesReceived) - stateSinkObject.Save(5, &i.PacketsDelivered) - stateSinkObject.Save(6, &i.PacketsSent) - stateSinkObject.Save(7, &i.OutgoingPacketErrors) - stateSinkObject.Save(8, &i.MalformedPacketsReceived) - stateSinkObject.Save(9, &i.MalformedFragmentsReceived) - stateSinkObject.Save(10, &i.IPTablesPreroutingDropped) - stateSinkObject.Save(11, &i.IPTablesInputDropped) - stateSinkObject.Save(12, &i.IPTablesForwardDropped) - stateSinkObject.Save(13, &i.IPTablesOutputDropped) - stateSinkObject.Save(14, &i.IPTablesPostroutingDropped) - stateSinkObject.Save(15, &i.OptionTimestampReceived) - stateSinkObject.Save(16, &i.OptionRecordRouteReceived) - stateSinkObject.Save(17, &i.OptionRouterAlertReceived) - stateSinkObject.Save(18, &i.OptionUnknownReceived) - stateSinkObject.Save(19, &i.Forwarding) -} - -func (i *IPStats) afterLoad(context.Context) {} - -// +checklocksignore -func (i *IPStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &i.PacketsReceived) - stateSourceObject.Load(1, &i.ValidPacketsReceived) - stateSourceObject.Load(2, &i.DisabledPacketsReceived) - stateSourceObject.Load(3, &i.InvalidDestinationAddressesReceived) - stateSourceObject.Load(4, &i.InvalidSourceAddressesReceived) - stateSourceObject.Load(5, &i.PacketsDelivered) - stateSourceObject.Load(6, &i.PacketsSent) - stateSourceObject.Load(7, &i.OutgoingPacketErrors) - stateSourceObject.Load(8, &i.MalformedPacketsReceived) - stateSourceObject.Load(9, &i.MalformedFragmentsReceived) - stateSourceObject.Load(10, &i.IPTablesPreroutingDropped) - stateSourceObject.Load(11, &i.IPTablesInputDropped) - stateSourceObject.Load(12, &i.IPTablesForwardDropped) - stateSourceObject.Load(13, &i.IPTablesOutputDropped) - stateSourceObject.Load(14, &i.IPTablesPostroutingDropped) - stateSourceObject.Load(15, &i.OptionTimestampReceived) - stateSourceObject.Load(16, &i.OptionRecordRouteReceived) - stateSourceObject.Load(17, &i.OptionRouterAlertReceived) - stateSourceObject.Load(18, &i.OptionUnknownReceived) - stateSourceObject.Load(19, &i.Forwarding) -} - -func (a *ARPStats) StateTypeName() string { - return "pkg/tcpip.ARPStats" -} - -func (a *ARPStats) StateFields() []string { - return []string{ - "PacketsReceived", - "DisabledPacketsReceived", - "MalformedPacketsReceived", - "RequestsReceived", - "RequestsReceivedUnknownTargetAddress", - "OutgoingRequestInterfaceHasNoLocalAddressErrors", - "OutgoingRequestBadLocalAddressErrors", - "OutgoingRequestsDropped", - "OutgoingRequestsSent", - "RepliesReceived", - "OutgoingRepliesDropped", - "OutgoingRepliesSent", - } -} - -func (a *ARPStats) beforeSave() {} - -// +checklocksignore -func (a *ARPStats) StateSave(stateSinkObject state.Sink) { - a.beforeSave() - stateSinkObject.Save(0, &a.PacketsReceived) - stateSinkObject.Save(1, &a.DisabledPacketsReceived) - stateSinkObject.Save(2, &a.MalformedPacketsReceived) - stateSinkObject.Save(3, &a.RequestsReceived) - stateSinkObject.Save(4, &a.RequestsReceivedUnknownTargetAddress) - stateSinkObject.Save(5, &a.OutgoingRequestInterfaceHasNoLocalAddressErrors) - stateSinkObject.Save(6, &a.OutgoingRequestBadLocalAddressErrors) - stateSinkObject.Save(7, &a.OutgoingRequestsDropped) - stateSinkObject.Save(8, &a.OutgoingRequestsSent) - stateSinkObject.Save(9, &a.RepliesReceived) - stateSinkObject.Save(10, &a.OutgoingRepliesDropped) - stateSinkObject.Save(11, &a.OutgoingRepliesSent) -} - -func (a *ARPStats) afterLoad(context.Context) {} - -// +checklocksignore -func (a *ARPStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &a.PacketsReceived) - stateSourceObject.Load(1, &a.DisabledPacketsReceived) - stateSourceObject.Load(2, &a.MalformedPacketsReceived) - stateSourceObject.Load(3, &a.RequestsReceived) - stateSourceObject.Load(4, &a.RequestsReceivedUnknownTargetAddress) - stateSourceObject.Load(5, &a.OutgoingRequestInterfaceHasNoLocalAddressErrors) - stateSourceObject.Load(6, &a.OutgoingRequestBadLocalAddressErrors) - stateSourceObject.Load(7, &a.OutgoingRequestsDropped) - stateSourceObject.Load(8, &a.OutgoingRequestsSent) - stateSourceObject.Load(9, &a.RepliesReceived) - stateSourceObject.Load(10, &a.OutgoingRepliesDropped) - stateSourceObject.Load(11, &a.OutgoingRepliesSent) -} - -func (t *TCPStats) StateTypeName() string { - return "pkg/tcpip.TCPStats" -} - -func (t *TCPStats) StateFields() []string { - return []string{ - "ActiveConnectionOpenings", - "PassiveConnectionOpenings", - "CurrentEstablished", - "CurrentConnected", - "EstablishedResets", - "EstablishedClosed", - "EstablishedTimedout", - "ListenOverflowSynDrop", - "ListenOverflowAckDrop", - "ListenOverflowSynCookieSent", - "ListenOverflowSynCookieRcvd", - "ListenOverflowInvalidSynCookieRcvd", - "FailedConnectionAttempts", - "ValidSegmentsReceived", - "InvalidSegmentsReceived", - "SegmentsSent", - "SegmentSendErrors", - "ResetsSent", - "ResetsReceived", - "Retransmits", - "FastRecovery", - "SACKRecovery", - "TLPRecovery", - "SlowStartRetransmits", - "FastRetransmit", - "Timeouts", - "ChecksumErrors", - "FailedPortReservations", - "SegmentsAckedWithDSACK", - "SpuriousRecovery", - "SpuriousRTORecovery", - "ForwardMaxInFlightDrop", - } -} - -func (t *TCPStats) beforeSave() {} - -// +checklocksignore -func (t *TCPStats) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.ActiveConnectionOpenings) - stateSinkObject.Save(1, &t.PassiveConnectionOpenings) - stateSinkObject.Save(2, &t.CurrentEstablished) - stateSinkObject.Save(3, &t.CurrentConnected) - stateSinkObject.Save(4, &t.EstablishedResets) - stateSinkObject.Save(5, &t.EstablishedClosed) - stateSinkObject.Save(6, &t.EstablishedTimedout) - stateSinkObject.Save(7, &t.ListenOverflowSynDrop) - stateSinkObject.Save(8, &t.ListenOverflowAckDrop) - stateSinkObject.Save(9, &t.ListenOverflowSynCookieSent) - stateSinkObject.Save(10, &t.ListenOverflowSynCookieRcvd) - stateSinkObject.Save(11, &t.ListenOverflowInvalidSynCookieRcvd) - stateSinkObject.Save(12, &t.FailedConnectionAttempts) - stateSinkObject.Save(13, &t.ValidSegmentsReceived) - stateSinkObject.Save(14, &t.InvalidSegmentsReceived) - stateSinkObject.Save(15, &t.SegmentsSent) - stateSinkObject.Save(16, &t.SegmentSendErrors) - stateSinkObject.Save(17, &t.ResetsSent) - stateSinkObject.Save(18, &t.ResetsReceived) - stateSinkObject.Save(19, &t.Retransmits) - stateSinkObject.Save(20, &t.FastRecovery) - stateSinkObject.Save(21, &t.SACKRecovery) - stateSinkObject.Save(22, &t.TLPRecovery) - stateSinkObject.Save(23, &t.SlowStartRetransmits) - stateSinkObject.Save(24, &t.FastRetransmit) - stateSinkObject.Save(25, &t.Timeouts) - stateSinkObject.Save(26, &t.ChecksumErrors) - stateSinkObject.Save(27, &t.FailedPortReservations) - stateSinkObject.Save(28, &t.SegmentsAckedWithDSACK) - stateSinkObject.Save(29, &t.SpuriousRecovery) - stateSinkObject.Save(30, &t.SpuriousRTORecovery) - stateSinkObject.Save(31, &t.ForwardMaxInFlightDrop) -} - -func (t *TCPStats) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCPStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.ActiveConnectionOpenings) - stateSourceObject.Load(1, &t.PassiveConnectionOpenings) - stateSourceObject.Load(2, &t.CurrentEstablished) - stateSourceObject.Load(3, &t.CurrentConnected) - stateSourceObject.Load(4, &t.EstablishedResets) - stateSourceObject.Load(5, &t.EstablishedClosed) - stateSourceObject.Load(6, &t.EstablishedTimedout) - stateSourceObject.Load(7, &t.ListenOverflowSynDrop) - stateSourceObject.Load(8, &t.ListenOverflowAckDrop) - stateSourceObject.Load(9, &t.ListenOverflowSynCookieSent) - stateSourceObject.Load(10, &t.ListenOverflowSynCookieRcvd) - stateSourceObject.Load(11, &t.ListenOverflowInvalidSynCookieRcvd) - stateSourceObject.Load(12, &t.FailedConnectionAttempts) - stateSourceObject.Load(13, &t.ValidSegmentsReceived) - stateSourceObject.Load(14, &t.InvalidSegmentsReceived) - stateSourceObject.Load(15, &t.SegmentsSent) - stateSourceObject.Load(16, &t.SegmentSendErrors) - stateSourceObject.Load(17, &t.ResetsSent) - stateSourceObject.Load(18, &t.ResetsReceived) - stateSourceObject.Load(19, &t.Retransmits) - stateSourceObject.Load(20, &t.FastRecovery) - stateSourceObject.Load(21, &t.SACKRecovery) - stateSourceObject.Load(22, &t.TLPRecovery) - stateSourceObject.Load(23, &t.SlowStartRetransmits) - stateSourceObject.Load(24, &t.FastRetransmit) - stateSourceObject.Load(25, &t.Timeouts) - stateSourceObject.Load(26, &t.ChecksumErrors) - stateSourceObject.Load(27, &t.FailedPortReservations) - stateSourceObject.Load(28, &t.SegmentsAckedWithDSACK) - stateSourceObject.Load(29, &t.SpuriousRecovery) - stateSourceObject.Load(30, &t.SpuriousRTORecovery) - stateSourceObject.Load(31, &t.ForwardMaxInFlightDrop) -} - -func (u *UDPStats) StateTypeName() string { - return "pkg/tcpip.UDPStats" -} - -func (u *UDPStats) StateFields() []string { - return []string{ - "PacketsReceived", - "UnknownPortErrors", - "ReceiveBufferErrors", - "MalformedPacketsReceived", - "PacketsSent", - "PacketSendErrors", - "ChecksumErrors", - } -} - -func (u *UDPStats) beforeSave() {} - -// +checklocksignore -func (u *UDPStats) StateSave(stateSinkObject state.Sink) { - u.beforeSave() - stateSinkObject.Save(0, &u.PacketsReceived) - stateSinkObject.Save(1, &u.UnknownPortErrors) - stateSinkObject.Save(2, &u.ReceiveBufferErrors) - stateSinkObject.Save(3, &u.MalformedPacketsReceived) - stateSinkObject.Save(4, &u.PacketsSent) - stateSinkObject.Save(5, &u.PacketSendErrors) - stateSinkObject.Save(6, &u.ChecksumErrors) -} - -func (u *UDPStats) afterLoad(context.Context) {} - -// +checklocksignore -func (u *UDPStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &u.PacketsReceived) - stateSourceObject.Load(1, &u.UnknownPortErrors) - stateSourceObject.Load(2, &u.ReceiveBufferErrors) - stateSourceObject.Load(3, &u.MalformedPacketsReceived) - stateSourceObject.Load(4, &u.PacketsSent) - stateSourceObject.Load(5, &u.PacketSendErrors) - stateSourceObject.Load(6, &u.ChecksumErrors) -} - -func (n *NICNeighborStats) StateTypeName() string { - return "pkg/tcpip.NICNeighborStats" -} - -func (n *NICNeighborStats) StateFields() []string { - return []string{ - "UnreachableEntryLookups", - "DroppedConfirmationForNoninitiatedNeighbor", - "DroppedInvalidLinkAddressConfirmations", - } -} - -func (n *NICNeighborStats) beforeSave() {} - -// +checklocksignore -func (n *NICNeighborStats) StateSave(stateSinkObject state.Sink) { - n.beforeSave() - stateSinkObject.Save(0, &n.UnreachableEntryLookups) - stateSinkObject.Save(1, &n.DroppedConfirmationForNoninitiatedNeighbor) - stateSinkObject.Save(2, &n.DroppedInvalidLinkAddressConfirmations) -} - -func (n *NICNeighborStats) afterLoad(context.Context) {} - -// +checklocksignore -func (n *NICNeighborStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &n.UnreachableEntryLookups) - stateSourceObject.Load(1, &n.DroppedConfirmationForNoninitiatedNeighbor) - stateSourceObject.Load(2, &n.DroppedInvalidLinkAddressConfirmations) -} - -func (n *NICPacketStats) StateTypeName() string { - return "pkg/tcpip.NICPacketStats" -} - -func (n *NICPacketStats) StateFields() []string { - return []string{ - "Packets", - "Bytes", - } -} - -func (n *NICPacketStats) beforeSave() {} - -// +checklocksignore -func (n *NICPacketStats) StateSave(stateSinkObject state.Sink) { - n.beforeSave() - stateSinkObject.Save(0, &n.Packets) - stateSinkObject.Save(1, &n.Bytes) -} - -func (n *NICPacketStats) afterLoad(context.Context) {} - -// +checklocksignore -func (n *NICPacketStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &n.Packets) - stateSourceObject.Load(1, &n.Bytes) -} - -func (m *IntegralStatCounterMap) StateTypeName() string { - return "pkg/tcpip.IntegralStatCounterMap" -} - -func (m *IntegralStatCounterMap) StateFields() []string { - return []string{ - "counterMap", - } -} - -func (m *IntegralStatCounterMap) beforeSave() {} - -// +checklocksignore -func (m *IntegralStatCounterMap) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.counterMap) -} - -func (m *IntegralStatCounterMap) afterLoad(context.Context) {} - -// +checklocksignore -func (m *IntegralStatCounterMap) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.counterMap) -} - -func (m *MultiIntegralStatCounterMap) StateTypeName() string { - return "pkg/tcpip.MultiIntegralStatCounterMap" -} - -func (m *MultiIntegralStatCounterMap) StateFields() []string { - return []string{ - "a", - "b", - } -} - -func (m *MultiIntegralStatCounterMap) beforeSave() {} - -// +checklocksignore -func (m *MultiIntegralStatCounterMap) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.a) - stateSinkObject.Save(1, &m.b) -} - -func (m *MultiIntegralStatCounterMap) afterLoad(context.Context) {} - -// +checklocksignore -func (m *MultiIntegralStatCounterMap) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.a) - stateSourceObject.Load(1, &m.b) -} - -func (s *NICStats) StateTypeName() string { - return "pkg/tcpip.NICStats" -} - -func (s *NICStats) StateFields() []string { - return []string{ - "UnknownL3ProtocolRcvdPacketCounts", - "UnknownL4ProtocolRcvdPacketCounts", - "MalformedL4RcvdPackets", - "Tx", - "TxPacketsDroppedNoBufferSpace", - "Rx", - "DisabledRx", - "Neighbor", - } -} - -func (s *NICStats) beforeSave() {} - -// +checklocksignore -func (s *NICStats) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.UnknownL3ProtocolRcvdPacketCounts) - stateSinkObject.Save(1, &s.UnknownL4ProtocolRcvdPacketCounts) - stateSinkObject.Save(2, &s.MalformedL4RcvdPackets) - stateSinkObject.Save(3, &s.Tx) - stateSinkObject.Save(4, &s.TxPacketsDroppedNoBufferSpace) - stateSinkObject.Save(5, &s.Rx) - stateSinkObject.Save(6, &s.DisabledRx) - stateSinkObject.Save(7, &s.Neighbor) -} - -func (s *NICStats) afterLoad(context.Context) {} - -// +checklocksignore -func (s *NICStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.UnknownL3ProtocolRcvdPacketCounts) - stateSourceObject.Load(1, &s.UnknownL4ProtocolRcvdPacketCounts) - stateSourceObject.Load(2, &s.MalformedL4RcvdPackets) - stateSourceObject.Load(3, &s.Tx) - stateSourceObject.Load(4, &s.TxPacketsDroppedNoBufferSpace) - stateSourceObject.Load(5, &s.Rx) - stateSourceObject.Load(6, &s.DisabledRx) - stateSourceObject.Load(7, &s.Neighbor) -} - -func (s *Stats) StateTypeName() string { - return "pkg/tcpip.Stats" -} - -func (s *Stats) StateFields() []string { - return []string{ - "DroppedPackets", - "NICs", - "ICMP", - "IGMP", - "IP", - "ARP", - "TCP", - "UDP", - } -} - -func (s *Stats) beforeSave() {} - -// +checklocksignore -func (s *Stats) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.DroppedPackets) - stateSinkObject.Save(1, &s.NICs) - stateSinkObject.Save(2, &s.ICMP) - stateSinkObject.Save(3, &s.IGMP) - stateSinkObject.Save(4, &s.IP) - stateSinkObject.Save(5, &s.ARP) - stateSinkObject.Save(6, &s.TCP) - stateSinkObject.Save(7, &s.UDP) -} - -func (s *Stats) afterLoad(context.Context) {} - -// +checklocksignore -func (s *Stats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.DroppedPackets) - stateSourceObject.Load(1, &s.NICs) - stateSourceObject.Load(2, &s.ICMP) - stateSourceObject.Load(3, &s.IGMP) - stateSourceObject.Load(4, &s.IP) - stateSourceObject.Load(5, &s.ARP) - stateSourceObject.Load(6, &s.TCP) - stateSourceObject.Load(7, &s.UDP) -} - -func (r *ReceiveErrors) StateTypeName() string { - return "pkg/tcpip.ReceiveErrors" -} - -func (r *ReceiveErrors) StateFields() []string { - return []string{ - "ReceiveBufferOverflow", - "MalformedPacketsReceived", - "ClosedReceiver", - "ChecksumErrors", - } -} - -func (r *ReceiveErrors) beforeSave() {} - -// +checklocksignore -func (r *ReceiveErrors) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.ReceiveBufferOverflow) - stateSinkObject.Save(1, &r.MalformedPacketsReceived) - stateSinkObject.Save(2, &r.ClosedReceiver) - stateSinkObject.Save(3, &r.ChecksumErrors) -} - -func (r *ReceiveErrors) afterLoad(context.Context) {} - -// +checklocksignore -func (r *ReceiveErrors) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.ReceiveBufferOverflow) - stateSourceObject.Load(1, &r.MalformedPacketsReceived) - stateSourceObject.Load(2, &r.ClosedReceiver) - stateSourceObject.Load(3, &r.ChecksumErrors) -} - -func (s *SendErrors) StateTypeName() string { - return "pkg/tcpip.SendErrors" -} - -func (s *SendErrors) StateFields() []string { - return []string{ - "SendToNetworkFailed", - "NoRoute", - } -} - -func (s *SendErrors) beforeSave() {} - -// +checklocksignore -func (s *SendErrors) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.SendToNetworkFailed) - stateSinkObject.Save(1, &s.NoRoute) -} - -func (s *SendErrors) afterLoad(context.Context) {} - -// +checklocksignore -func (s *SendErrors) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.SendToNetworkFailed) - stateSourceObject.Load(1, &s.NoRoute) -} - -func (r *ReadErrors) StateTypeName() string { - return "pkg/tcpip.ReadErrors" -} - -func (r *ReadErrors) StateFields() []string { - return []string{ - "ReadClosed", - "InvalidEndpointState", - "NotConnected", - } -} - -func (r *ReadErrors) beforeSave() {} - -// +checklocksignore -func (r *ReadErrors) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.ReadClosed) - stateSinkObject.Save(1, &r.InvalidEndpointState) - stateSinkObject.Save(2, &r.NotConnected) -} - -func (r *ReadErrors) afterLoad(context.Context) {} - -// +checklocksignore -func (r *ReadErrors) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.ReadClosed) - stateSourceObject.Load(1, &r.InvalidEndpointState) - stateSourceObject.Load(2, &r.NotConnected) -} - -func (w *WriteErrors) StateTypeName() string { - return "pkg/tcpip.WriteErrors" -} - -func (w *WriteErrors) StateFields() []string { - return []string{ - "WriteClosed", - "InvalidEndpointState", - "InvalidArgs", - } -} - -func (w *WriteErrors) beforeSave() {} - -// +checklocksignore -func (w *WriteErrors) StateSave(stateSinkObject state.Sink) { - w.beforeSave() - stateSinkObject.Save(0, &w.WriteClosed) - stateSinkObject.Save(1, &w.InvalidEndpointState) - stateSinkObject.Save(2, &w.InvalidArgs) -} - -func (w *WriteErrors) afterLoad(context.Context) {} - -// +checklocksignore -func (w *WriteErrors) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &w.WriteClosed) - stateSourceObject.Load(1, &w.InvalidEndpointState) - stateSourceObject.Load(2, &w.InvalidArgs) -} - -func (src *TransportEndpointStats) StateTypeName() string { - return "pkg/tcpip.TransportEndpointStats" -} - -func (src *TransportEndpointStats) StateFields() []string { - return []string{ - "PacketsReceived", - "PacketsSent", - "ReceiveErrors", - "ReadErrors", - "SendErrors", - "WriteErrors", - } -} - -func (src *TransportEndpointStats) beforeSave() {} - -// +checklocksignore -func (src *TransportEndpointStats) StateSave(stateSinkObject state.Sink) { - src.beforeSave() - stateSinkObject.Save(0, &src.PacketsReceived) - stateSinkObject.Save(1, &src.PacketsSent) - stateSinkObject.Save(2, &src.ReceiveErrors) - stateSinkObject.Save(3, &src.ReadErrors) - stateSinkObject.Save(4, &src.SendErrors) - stateSinkObject.Save(5, &src.WriteErrors) -} - -func (src *TransportEndpointStats) afterLoad(context.Context) {} - -// +checklocksignore -func (src *TransportEndpointStats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &src.PacketsReceived) - stateSourceObject.Load(1, &src.PacketsSent) - stateSourceObject.Load(2, &src.ReceiveErrors) - stateSourceObject.Load(3, &src.ReadErrors) - stateSourceObject.Load(4, &src.SendErrors) - stateSourceObject.Load(5, &src.WriteErrors) -} - -func (a *AddressWithPrefix) StateTypeName() string { - return "pkg/tcpip.AddressWithPrefix" -} - -func (a *AddressWithPrefix) StateFields() []string { - return []string{ - "Address", - "PrefixLen", - } -} - -func (a *AddressWithPrefix) beforeSave() {} - -// +checklocksignore -func (a *AddressWithPrefix) StateSave(stateSinkObject state.Sink) { - a.beforeSave() - stateSinkObject.Save(0, &a.Address) - stateSinkObject.Save(1, &a.PrefixLen) -} - -func (a *AddressWithPrefix) afterLoad(context.Context) {} - -// +checklocksignore -func (a *AddressWithPrefix) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &a.Address) - stateSourceObject.Load(1, &a.PrefixLen) -} - -func (p *ProtocolAddress) StateTypeName() string { - return "pkg/tcpip.ProtocolAddress" -} - -func (p *ProtocolAddress) StateFields() []string { - return []string{ - "Protocol", - "AddressWithPrefix", - } -} - -func (p *ProtocolAddress) beforeSave() {} - -// +checklocksignore -func (p *ProtocolAddress) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - stateSinkObject.Save(0, &p.Protocol) - stateSinkObject.Save(1, &p.AddressWithPrefix) -} - -func (p *ProtocolAddress) afterLoad(context.Context) {} - -// +checklocksignore -func (p *ProtocolAddress) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.Protocol) - stateSourceObject.Load(1, &p.AddressWithPrefix) -} - -func (j *jobInstance) StateTypeName() string { - return "pkg/tcpip.jobInstance" -} - -func (j *jobInstance) StateFields() []string { - return []string{ - "timer", - "earlyReturn", - } -} - -func (j *jobInstance) beforeSave() {} - -// +checklocksignore -func (j *jobInstance) StateSave(stateSinkObject state.Sink) { - j.beforeSave() - stateSinkObject.Save(0, &j.timer) - stateSinkObject.Save(1, &j.earlyReturn) -} - -func (j *jobInstance) afterLoad(context.Context) {} - -// +checklocksignore -func (j *jobInstance) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &j.timer) - stateSourceObject.Load(1, &j.earlyReturn) -} - -func (j *Job) StateTypeName() string { - return "pkg/tcpip.Job" -} - -func (j *Job) StateFields() []string { - return []string{ - "clock", - "instance", - } -} - -func (j *Job) beforeSave() {} - -// +checklocksignore -func (j *Job) StateSave(stateSinkObject state.Sink) { - j.beforeSave() - stateSinkObject.Save(0, &j.clock) - stateSinkObject.Save(1, &j.instance) -} - -func (j *Job) afterLoad(context.Context) {} - -// +checklocksignore -func (j *Job) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &j.clock) - stateSourceObject.Load(1, &j.instance) -} - -func init() { - state.Register((*ErrAborted)(nil)) - state.Register((*ErrAddressFamilyNotSupported)(nil)) - state.Register((*ErrAlreadyBound)(nil)) - state.Register((*ErrAlreadyConnected)(nil)) - state.Register((*ErrAlreadyConnecting)(nil)) - state.Register((*ErrBadAddress)(nil)) - state.Register((*ErrBadBuffer)(nil)) - state.Register((*ErrBadLocalAddress)(nil)) - state.Register((*ErrBroadcastDisabled)(nil)) - state.Register((*ErrClosedForReceive)(nil)) - state.Register((*ErrClosedForSend)(nil)) - state.Register((*ErrConnectStarted)(nil)) - state.Register((*ErrConnectionAborted)(nil)) - state.Register((*ErrConnectionRefused)(nil)) - state.Register((*ErrConnectionReset)(nil)) - state.Register((*ErrDestinationRequired)(nil)) - state.Register((*ErrDuplicateAddress)(nil)) - state.Register((*ErrDuplicateNICID)(nil)) - state.Register((*ErrInvalidNICID)(nil)) - state.Register((*ErrInvalidEndpointState)(nil)) - state.Register((*ErrInvalidOptionValue)(nil)) - state.Register((*ErrInvalidPortRange)(nil)) - state.Register((*ErrMalformedHeader)(nil)) - state.Register((*ErrMessageTooLong)(nil)) - state.Register((*ErrNetworkUnreachable)(nil)) - state.Register((*ErrNoBufferSpace)(nil)) - state.Register((*ErrNoPortAvailable)(nil)) - state.Register((*ErrHostUnreachable)(nil)) - state.Register((*ErrHostDown)(nil)) - state.Register((*ErrNoNet)(nil)) - state.Register((*ErrNoSuchFile)(nil)) - state.Register((*ErrNotConnected)(nil)) - state.Register((*ErrNotPermitted)(nil)) - state.Register((*ErrNotSupported)(nil)) - state.Register((*ErrPortInUse)(nil)) - state.Register((*ErrQueueSizeNotSupported)(nil)) - state.Register((*ErrTimeout)(nil)) - state.Register((*ErrUnknownDevice)(nil)) - state.Register((*ErrUnknownNICID)(nil)) - state.Register((*ErrUnknownProtocol)(nil)) - state.Register((*ErrUnknownProtocolOption)(nil)) - state.Register((*ErrWouldBlock)(nil)) - state.Register((*ErrMissingRequiredFields)(nil)) - state.Register((*ErrMulticastInputCannotBeOutput)(nil)) - state.Register((*RouteList)(nil)) - state.Register((*RouteEntry)(nil)) - state.Register((*sockErrorList)(nil)) - state.Register((*sockErrorEntry)(nil)) - state.Register((*SocketOptions)(nil)) - state.Register((*LocalSockError)(nil)) - state.Register((*SockError)(nil)) - state.Register((*stdClock)(nil)) - state.Register((*stdTimer)(nil)) - state.Register((*MonotonicTime)(nil)) - state.Register((*Address)(nil)) - state.Register((*AddressMask)(nil)) - state.Register((*Subnet)(nil)) - state.Register((*FullAddress)(nil)) - state.Register((*SendableControlMessages)(nil)) - state.Register((*ReceivableControlMessages)(nil)) - state.Register((*LinkPacketInfo)(nil)) - state.Register((*TCPSendBufferSizeRangeOption)(nil)) - state.Register((*TCPReceiveBufferSizeRangeOption)(nil)) - state.Register((*ICMPv6Filter)(nil)) - state.Register((*LingerOption)(nil)) - state.Register((*IPPacketInfo)(nil)) - state.Register((*IPv6PacketInfo)(nil)) - state.Register((*SendBufferSizeOption)(nil)) - state.Register((*ReceiveBufferSizeOption)(nil)) - state.Register((*Route)(nil)) - state.Register((*StatCounter)(nil)) - state.Register((*MultiCounterStat)(nil)) - state.Register((*ICMPv4PacketStats)(nil)) - state.Register((*ICMPv4SentPacketStats)(nil)) - state.Register((*ICMPv4ReceivedPacketStats)(nil)) - state.Register((*ICMPv4Stats)(nil)) - state.Register((*ICMPv6PacketStats)(nil)) - state.Register((*ICMPv6SentPacketStats)(nil)) - state.Register((*ICMPv6ReceivedPacketStats)(nil)) - state.Register((*ICMPv6Stats)(nil)) - state.Register((*ICMPStats)(nil)) - state.Register((*IGMPPacketStats)(nil)) - state.Register((*IGMPSentPacketStats)(nil)) - state.Register((*IGMPReceivedPacketStats)(nil)) - state.Register((*IGMPStats)(nil)) - state.Register((*IPForwardingStats)(nil)) - state.Register((*IPStats)(nil)) - state.Register((*ARPStats)(nil)) - state.Register((*TCPStats)(nil)) - state.Register((*UDPStats)(nil)) - state.Register((*NICNeighborStats)(nil)) - state.Register((*NICPacketStats)(nil)) - state.Register((*IntegralStatCounterMap)(nil)) - state.Register((*MultiIntegralStatCounterMap)(nil)) - state.Register((*NICStats)(nil)) - state.Register((*Stats)(nil)) - state.Register((*ReceiveErrors)(nil)) - state.Register((*SendErrors)(nil)) - state.Register((*ReadErrors)(nil)) - state.Register((*WriteErrors)(nil)) - state.Register((*TransportEndpointStats)(nil)) - state.Register((*AddressWithPrefix)(nil)) - state.Register((*ProtocolAddress)(nil)) - state.Register((*jobInstance)(nil)) - state.Register((*Job)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/timer.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/timer.go deleted file mode 100644 index 28bc2897ba..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/timer.go +++ /dev/null @@ -1,212 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcpip - -import ( - "time" - - "gvisor.dev/gvisor/pkg/sync" -) - -// jobInstance is a specific instance of Job. -// -// Different instances are created each time Job is scheduled so each timer has -// its own earlyReturn signal. This is to address a bug when a Job is stopped -// and reset in quick succession resulting in a timer instance's earlyReturn -// signal being affected or seen by another timer instance. -// -// Consider the following sceneario where timer instances share a common -// earlyReturn signal (T1 creates, stops and resets a Cancellable timer under a -// lock L; T2, T3, T4 and T5 are goroutines that handle the first (A), second -// (B), third (C), and fourth (D) instance of the timer firing, respectively): -// -// T1: Obtain L -// T1: Create a new Job w/ lock L (create instance A) -// T2: instance A fires, blocked trying to obtain L. -// T1: Attempt to stop instance A (set earlyReturn = true) -// T1: Schedule timer (create instance B) -// T3: instance B fires, blocked trying to obtain L. -// T1: Attempt to stop instance B (set earlyReturn = true) -// T1: Schedule timer (create instance C) -// T4: instance C fires, blocked trying to obtain L. -// T1: Attempt to stop instance C (set earlyReturn = true) -// T1: Schedule timer (create instance D) -// T5: instance D fires, blocked trying to obtain L. -// T1: Release L -// -// Now that T1 has released L, any of the 4 timer instances can take L and -// check earlyReturn. If the timers simply check earlyReturn and then do -// nothing further, then instance D will never early return even though it was -// not requested to stop. If the timers reset earlyReturn before early -// returning, then all but one of the timers will do work when only one was -// expected to. If Job resets earlyReturn when resetting, then all the timers -// will fire (again, when only one was expected to). -// -// To address the above concerns the simplest solution was to give each timer -// its own earlyReturn signal. -// -// +stateify savable -type jobInstance struct { - timer Timer - - // Used to inform the timer to early return when it gets stopped while the - // lock the timer tries to obtain when fired is held (T1 is a goroutine that - // tries to cancel the timer and T2 is the goroutine that handles the timer - // firing): - // T1: Obtain the lock, then call Cancel() - // T2: timer fires, and gets blocked on obtaining the lock - // T1: Releases lock - // T2: Obtains lock does unintended work - // - // To resolve this, T1 will check to see if the timer already fired, and - // inform the timer using earlyReturn to return early so that once T2 obtains - // the lock, it will see that it is set to true and do nothing further. - earlyReturn *bool -} - -// stop stops the job instance j from firing if it hasn't fired already. If it -// has fired and is blocked at obtaining the lock, earlyReturn will be set to -// true so that it will early return when it obtains the lock. -func (j *jobInstance) stop() { - if j.timer != nil { - j.timer.Stop() - *j.earlyReturn = true - } -} - -// Job represents some work that can be scheduled for execution. The work can -// be safely cancelled when it fires at the same time some "related work" is -// being done. -// -// The term "related work" is defined as some work that needs to be done while -// holding some lock that the timer must also hold while doing some work. -// -// Note, it is not safe to copy a Job as its timer instance creates -// a closure over the address of the Job. -// -// +stateify savable -type Job struct { - _ sync.NoCopy - - // The clock used to schedule the backing timer - clock Clock - - // The active instance of a cancellable timer. - instance jobInstance - - // locker is the lock taken by the timer immediately after it fires and must - // be held when attempting to stop the timer. - // - // Must never change after being assigned. - locker sync.Locker `state:"nosave"` - - // fn is the function that will be called when a timer fires and has not been - // signaled to early return. - // - // fn MUST NOT attempt to lock locker. - // - // Must never change after being assigned. - // TODO(b/341946753): Restore when netstack is savable. - fn func() `state:"nosave"` -} - -// Cancel prevents the Job from executing if it has not executed already. -// -// Cancel requires appropriate locking to be in place for any resources managed -// by the Job. If the Job is blocked on obtaining the lock when Cancel is -// called, it will early return. -// -// Note, t will be modified. -// -// j.locker MUST be locked. -func (j *Job) Cancel() { - j.instance.stop() - - // Nothing to do with the stopped instance anymore. - j.instance = jobInstance{} -} - -// Schedule schedules the Job for execution after duration d. This can be -// called on cancelled or completed Jobs to schedule them again. -// -// Schedule should be invoked only on unscheduled, cancelled, or completed -// Jobs. To be safe, callers should always call Cancel before calling Schedule. -// -// Note, j will be modified. -func (j *Job) Schedule(d time.Duration) { - // Create a new instance. - earlyReturn := false - - // Capture the locker so that updating the timer does not cause a data race - // when a timer fires and tries to obtain the lock (read the timer's locker). - locker := j.locker - j.instance = jobInstance{ - timer: j.clock.AfterFunc(d, func() { - locker.Lock() - defer locker.Unlock() - - if earlyReturn { - // If we reach this point, it means that the timer fired while another - // goroutine called Cancel while it had the lock. Simply return here - // and do nothing further. - earlyReturn = false - return - } - - j.fn() - }), - earlyReturn: &earlyReturn, - } -} - -// NewJob returns a new Job that can be used to schedule f to run in its own -// gorountine. l will be locked before calling f then unlocked after f returns. -// -// var clock tcpip.StdClock -// var mu sync.Mutex -// message := "foo" -// job := tcpip.NewJob(&clock, &mu, func() { -// fmt.Println(message) -// }) -// job.Schedule(time.Second) -// -// mu.Lock() -// message = "bar" -// mu.Unlock() -// -// // Output: bar -// -// f MUST NOT attempt to lock l. -// -// l MUST be locked prior to calling the returned job's Cancel(). -// -// var clock tcpip.StdClock -// var mu sync.Mutex -// message := "foo" -// job := tcpip.NewJob(&clock, &mu, func() { -// fmt.Println(message) -// }) -// job.Schedule(time.Second) -// -// mu.Lock() -// job.Cancel() -// mu.Unlock() -func NewJob(c Clock, l sync.Locker, f func()) *Job { - return &Job{ - clock: c, - locker: l, - fn: f, - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/datagram.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/datagram.go deleted file mode 100644 index dfce72c69d..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/datagram.go +++ /dev/null @@ -1,49 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package transport - -import ( - "fmt" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -// DatagramEndpointState is the state of a datagram-based endpoint. -type DatagramEndpointState tcpip.EndpointState - -// The states a datagram-based endpoint may be in. -const ( - _ DatagramEndpointState = iota - DatagramEndpointStateInitial - DatagramEndpointStateBound - DatagramEndpointStateConnected - DatagramEndpointStateClosed -) - -// String implements fmt.Stringer. -func (s DatagramEndpointState) String() string { - switch s { - case DatagramEndpointStateInitial: - return "INITIAL" - case DatagramEndpointStateBound: - return "BOUND" - case DatagramEndpointStateConnected: - return "CONNECTED" - case DatagramEndpointStateClosed: - return "CLOSED" - default: - panic(fmt.Sprintf("unhandled %[1]T variant = %[1]d", s)) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/icmp/endpoint.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/icmp/endpoint.go deleted file mode 100644 index 988604fcd4..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/icmp/endpoint.go +++ /dev/null @@ -1,828 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package icmp - -import ( - "fmt" - "io" - "time" - - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/checksum" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/ports" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport" - "gvisor.dev/gvisor/pkg/tcpip/transport/internal/network" - "gvisor.dev/gvisor/pkg/waiter" -) - -// +stateify savable -type icmpPacket struct { - icmpPacketEntry - senderAddress tcpip.FullAddress - packetInfo tcpip.IPPacketInfo - data *stack.PacketBuffer - receivedAt time.Time `state:".(int64)"` - - // tosOrTClass stores either the Type of Service for IPv4 or the Traffic Class - // for IPv6. - tosOrTClass uint8 - // ttlOrHopLimit stores either the TTL for IPv4 or the HopLimit for IPv6 - ttlOrHopLimit uint8 -} - -// endpoint represents an ICMP endpoint. This struct serves as the interface -// between users of the endpoint and the protocol implementation; it is legal to -// have concurrent goroutines make calls into the endpoint, they are properly -// synchronized. -// -// +stateify savable -type endpoint struct { - tcpip.DefaultSocketOptionsHandler - - // The following fields are initialized at creation time and are - // immutable. - stack *stack.Stack `state:"manual"` - transProto tcpip.TransportProtocolNumber - waiterQueue *waiter.Queue - net network.Endpoint - stats tcpip.TransportEndpointStats - ops tcpip.SocketOptions - - // The following fields are used to manage the receive queue, and are - // protected by rcvMu. - rcvMu sync.Mutex `state:"nosave"` - rcvReady bool - rcvList icmpPacketList - rcvBufSize int - rcvClosed bool - - // The following fields are protected by the mu mutex. - mu sync.RWMutex `state:"nosave"` - // frozen indicates if the packets should be delivered to the endpoint - // during restore. - frozen bool - ident uint16 -} - -func newEndpoint(s *stack.Stack, netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - ep := &endpoint{ - stack: s, - transProto: transProto, - waiterQueue: waiterQueue, - } - ep.ops.InitHandler(ep, ep.stack, tcpip.GetStackSendBufferLimits, tcpip.GetStackReceiveBufferLimits) - ep.ops.SetSendBufferSize(32*1024, false /* notify */) - ep.ops.SetReceiveBufferSize(32*1024, false /* notify */) - ep.net.Init(s, netProto, transProto, &ep.ops, waiterQueue) - - // Override with stack defaults. - var ss tcpip.SendBufferSizeOption - if err := s.Option(&ss); err == nil { - ep.ops.SetSendBufferSize(int64(ss.Default), false /* notify */) - } - var rs tcpip.ReceiveBufferSizeOption - if err := s.Option(&rs); err == nil { - ep.ops.SetReceiveBufferSize(int64(rs.Default), false /* notify */) - } - return ep, nil -} - -// WakeupWriters implements tcpip.SocketOptionsHandler. -func (e *endpoint) WakeupWriters() { - e.net.MaybeSignalWritable() -} - -// Abort implements stack.TransportEndpoint.Abort. -func (e *endpoint) Abort() { - e.Close() -} - -// Close puts the endpoint in a closed state and frees all resources -// associated with it. -func (e *endpoint) Close() { - notify := func() bool { - e.mu.Lock() - defer e.mu.Unlock() - - switch state := e.net.State(); state { - case transport.DatagramEndpointStateInitial: - case transport.DatagramEndpointStateClosed: - return false - case transport.DatagramEndpointStateBound, transport.DatagramEndpointStateConnected: - info := e.net.Info() - info.ID.LocalPort = e.ident - e.stack.UnregisterTransportEndpoint([]tcpip.NetworkProtocolNumber{info.NetProto}, e.transProto, info.ID, e, ports.Flags{}, tcpip.NICID(e.ops.GetBindToDevice())) - default: - panic(fmt.Sprintf("unhandled state = %s", state)) - } - - e.net.Shutdown() - e.net.Close() - - e.rcvMu.Lock() - defer e.rcvMu.Unlock() - e.rcvClosed = true - e.rcvBufSize = 0 - for !e.rcvList.Empty() { - p := e.rcvList.Front() - e.rcvList.Remove(p) - p.data.DecRef() - } - - return true - }() - - if notify { - e.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) - } -} - -// ModerateRecvBuf implements tcpip.Endpoint.ModerateRecvBuf. -func (*endpoint) ModerateRecvBuf(int) {} - -// SetOwner implements tcpip.Endpoint.SetOwner. -func (e *endpoint) SetOwner(owner tcpip.PacketOwner) { - e.net.SetOwner(owner) -} - -// Read implements tcpip.Endpoint.Read. -func (e *endpoint) Read(dst io.Writer, opts tcpip.ReadOptions) (tcpip.ReadResult, tcpip.Error) { - e.rcvMu.Lock() - - if e.rcvList.Empty() { - var err tcpip.Error = &tcpip.ErrWouldBlock{} - if e.rcvClosed { - e.stats.ReadErrors.ReadClosed.Increment() - err = &tcpip.ErrClosedForReceive{} - } - e.rcvMu.Unlock() - return tcpip.ReadResult{}, err - } - - p := e.rcvList.Front() - if !opts.Peek { - e.rcvList.Remove(p) - defer p.data.DecRef() - e.rcvBufSize -= p.data.Data().Size() - } - - e.rcvMu.Unlock() - - // Control Messages - // TODO(https://gvisor.dev/issue/7012): Share control message code with other - // network endpoints. - cm := tcpip.ReceivableControlMessages{ - HasTimestamp: true, - Timestamp: p.receivedAt, - } - switch netProto := e.net.NetProto(); netProto { - case header.IPv4ProtocolNumber: - if e.ops.GetReceiveTOS() { - cm.HasTOS = true - cm.TOS = p.tosOrTClass - } - if e.ops.GetReceivePacketInfo() { - cm.HasIPPacketInfo = true - cm.PacketInfo = p.packetInfo - } - if e.ops.GetReceiveTTL() { - cm.HasTTL = true - cm.TTL = p.ttlOrHopLimit - } - case header.IPv6ProtocolNumber: - if e.ops.GetReceiveTClass() { - cm.HasTClass = true - // Although TClass is an 8-bit value it's read in the CMsg as a uint32. - cm.TClass = uint32(p.tosOrTClass) - } - if e.ops.GetIPv6ReceivePacketInfo() { - cm.HasIPv6PacketInfo = true - cm.IPv6PacketInfo = tcpip.IPv6PacketInfo{ - NIC: p.packetInfo.NIC, - Addr: p.packetInfo.DestinationAddr, - } - } - if e.ops.GetReceiveHopLimit() { - cm.HasHopLimit = true - cm.HopLimit = p.ttlOrHopLimit - } - default: - panic(fmt.Sprintf("unrecognized network protocol = %d", netProto)) - } - - res := tcpip.ReadResult{ - Total: p.data.Data().Size(), - ControlMessages: cm, - } - if opts.NeedRemoteAddr { - res.RemoteAddr = p.senderAddress - } - - n, err := p.data.Data().ReadTo(dst, opts.Peek) - if n == 0 && err != nil { - return res, &tcpip.ErrBadBuffer{} - } - res.Count = n - return res, nil -} - -// prepareForWrite prepares the endpoint for sending data. In particular, it -// binds it if it's still in the initial state. To do so, it must first -// reacquire the mutex in exclusive mode. -// -// Returns true for retry if preparation should be retried. -// +checklocksread:e.mu -func (e *endpoint) prepareForWriteInner(to *tcpip.FullAddress) (retry bool, err tcpip.Error) { - switch e.net.State() { - case transport.DatagramEndpointStateInitial: - case transport.DatagramEndpointStateConnected: - return false, nil - case transport.DatagramEndpointStateBound: - if to == nil { - return false, &tcpip.ErrDestinationRequired{} - } - return false, nil - default: - return false, &tcpip.ErrInvalidEndpointState{} - } - - e.mu.RUnlock() - e.mu.Lock() - defer e.mu.DowngradeLock() - - // The state changed when we released the shared locked and re-acquired - // it in exclusive mode. Try again. - if e.net.State() != transport.DatagramEndpointStateInitial { - return true, nil - } - - // The state is still 'initial', so try to bind the endpoint. - if err := e.bindLocked(tcpip.FullAddress{}); err != nil { - return false, err - } - - return true, nil -} - -// Write writes data to the endpoint's peer. This method does not block -// if the data cannot be written. -func (e *endpoint) Write(p tcpip.Payloader, opts tcpip.WriteOptions) (int64, tcpip.Error) { - n, err := e.write(p, opts) - switch err.(type) { - case nil: - e.stats.PacketsSent.Increment() - case *tcpip.ErrMessageTooLong, *tcpip.ErrInvalidOptionValue: - e.stats.WriteErrors.InvalidArgs.Increment() - case *tcpip.ErrClosedForSend: - e.stats.WriteErrors.WriteClosed.Increment() - case *tcpip.ErrInvalidEndpointState: - e.stats.WriteErrors.InvalidEndpointState.Increment() - case *tcpip.ErrHostUnreachable, *tcpip.ErrBroadcastDisabled, *tcpip.ErrNetworkUnreachable: - // Errors indicating any problem with IP routing of the packet. - e.stats.SendErrors.NoRoute.Increment() - default: - // For all other errors when writing to the network layer. - e.stats.SendErrors.SendToNetworkFailed.Increment() - } - return n, err -} - -func (e *endpoint) prepareForWrite(opts tcpip.WriteOptions) (network.WriteContext, uint16, tcpip.Error) { - e.mu.RLock() - defer e.mu.RUnlock() - - // Prepare for write. - for { - retry, err := e.prepareForWriteInner(opts.To) - if err != nil { - return network.WriteContext{}, 0, err - } - - if !retry { - break - } - } - - ctx, err := e.net.AcquireContextForWrite(opts) - return ctx, e.ident, err -} - -func (e *endpoint) write(p tcpip.Payloader, opts tcpip.WriteOptions) (int64, tcpip.Error) { - ctx, ident, err := e.prepareForWrite(opts) - if err != nil { - return 0, err - } - defer ctx.Release() - - // Prevents giant buffer allocations. - if p.Len() > header.DatagramMaximumSize { - return 0, &tcpip.ErrMessageTooLong{} - } - - v := buffer.NewView(p.Len()) - defer v.Release() - if _, err := io.CopyN(v, p, int64(p.Len())); err != nil { - return 0, &tcpip.ErrBadBuffer{} - } - n := v.Size() - - switch netProto, pktInfo := e.net.NetProto(), ctx.PacketInfo(); netProto { - case header.IPv4ProtocolNumber: - if err := send4(e.stack, &ctx, ident, v, pktInfo.MaxHeaderLength); err != nil { - return 0, err - } - - case header.IPv6ProtocolNumber: - if err := send6(e.stack, &ctx, ident, v, pktInfo.LocalAddress, pktInfo.RemoteAddress, pktInfo.MaxHeaderLength); err != nil { - return 0, err - } - default: - panic(fmt.Sprintf("unhandled network protocol = %d", netProto)) - } - - return int64(n), nil -} - -var _ tcpip.SocketOptionsHandler = (*endpoint)(nil) - -// HasNIC implements tcpip.SocketOptionsHandler. -func (e *endpoint) HasNIC(id int32) bool { - return e.stack.HasNIC(tcpip.NICID(id)) -} - -// SetSockOpt implements tcpip.Endpoint. -func (e *endpoint) SetSockOpt(opt tcpip.SettableSocketOption) tcpip.Error { - return e.net.SetSockOpt(opt) -} - -// SetSockOptInt implements tcpip.Endpoint. -func (e *endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) tcpip.Error { - return e.net.SetSockOptInt(opt, v) -} - -// GetSockOptInt implements tcpip.Endpoint. -func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, tcpip.Error) { - switch opt { - case tcpip.ReceiveQueueSizeOption: - v := 0 - e.rcvMu.Lock() - if !e.rcvList.Empty() { - p := e.rcvList.Front() - v = p.data.Data().Size() - } - e.rcvMu.Unlock() - return v, nil - - default: - return e.net.GetSockOptInt(opt) - } -} - -// GetSockOpt implements tcpip.Endpoint. -func (e *endpoint) GetSockOpt(opt tcpip.GettableSocketOption) tcpip.Error { - return e.net.GetSockOpt(opt) -} - -func send4(s *stack.Stack, ctx *network.WriteContext, ident uint16, data *buffer.View, maxHeaderLength uint16) tcpip.Error { - if data.Size() < header.ICMPv4MinimumSize { - return &tcpip.ErrInvalidEndpointState{} - } - - pkt := ctx.TryNewPacketBuffer(header.ICMPv4MinimumSize+int(maxHeaderLength), buffer.Buffer{}) - if pkt == nil { - return &tcpip.ErrWouldBlock{} - } - defer pkt.DecRef() - - icmpv4 := header.ICMPv4(pkt.TransportHeader().Push(header.ICMPv4MinimumSize)) - pkt.TransportProtocolNumber = header.ICMPv4ProtocolNumber - copy(icmpv4, data.AsSlice()) - // Set the ident to the user-specified port. Sequence number should - // already be set by the user. - icmpv4.SetIdent(ident) - data.TrimFront(header.ICMPv4MinimumSize) - - // Linux performs these basic checks. - if icmpv4.Type() != header.ICMPv4Echo || icmpv4.Code() != 0 { - return &tcpip.ErrInvalidEndpointState{} - } - - icmpv4.SetChecksum(0) - icmpv4.SetChecksum(^checksum.Checksum(icmpv4, checksum.Checksum(data.AsSlice(), 0))) - pkt.Data().AppendView(data.Clone()) - - // Because this icmp endpoint is implemented in the transport layer, we can - // only increment the 'stack-wide' stats but we can't increment the - // 'per-NetworkEndpoint' stats. - stats := s.Stats().ICMP.V4.PacketsSent - - if err := ctx.WritePacket(pkt, false /* headerIncluded */); err != nil { - stats.Dropped.Increment() - return err - } - - stats.EchoRequest.Increment() - return nil -} - -func send6(s *stack.Stack, ctx *network.WriteContext, ident uint16, data *buffer.View, src, dst tcpip.Address, maxHeaderLength uint16) tcpip.Error { - if data.Size() < header.ICMPv6EchoMinimumSize { - return &tcpip.ErrInvalidEndpointState{} - } - - pkt := ctx.TryNewPacketBuffer(header.ICMPv6MinimumSize+int(maxHeaderLength), buffer.Buffer{}) - if pkt == nil { - return &tcpip.ErrWouldBlock{} - } - defer pkt.DecRef() - - icmpv6 := header.ICMPv6(pkt.TransportHeader().Push(header.ICMPv6MinimumSize)) - pkt.TransportProtocolNumber = header.ICMPv6ProtocolNumber - copy(icmpv6, data.AsSlice()) - // Set the ident. Sequence number is provided by the user. - icmpv6.SetIdent(ident) - data.TrimFront(header.ICMPv6MinimumSize) - - if icmpv6.Type() != header.ICMPv6EchoRequest || icmpv6.Code() != 0 { - return &tcpip.ErrInvalidEndpointState{} - } - - pkt.Data().AppendView(data.Clone()) - pktData := pkt.Data() - icmpv6.SetChecksum(header.ICMPv6Checksum(header.ICMPv6ChecksumParams{ - Header: icmpv6, - Src: src, - Dst: dst, - PayloadCsum: pktData.Checksum(), - PayloadLen: pktData.Size(), - })) - - // Because this icmp endpoint is implemented in the transport layer, we can - // only increment the 'stack-wide' stats but we can't increment the - // 'per-NetworkEndpoint' stats. - stats := s.Stats().ICMP.V6.PacketsSent - - if err := ctx.WritePacket(pkt, false /* headerIncluded */); err != nil { - stats.Dropped.Increment() - return err - } - - stats.EchoRequest.Increment() - return nil -} - -// Disconnect implements tcpip.Endpoint.Disconnect. -func (*endpoint) Disconnect() tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -// Connect connects the endpoint to its peer. Specifying a NIC is optional. -func (e *endpoint) Connect(addr tcpip.FullAddress) tcpip.Error { - e.mu.Lock() - defer e.mu.Unlock() - - err := e.net.ConnectAndThen(addr, func(netProto tcpip.NetworkProtocolNumber, previousID, nextID stack.TransportEndpointID) tcpip.Error { - nextID.LocalPort = e.ident - - nextID, err := e.registerWithStack(netProto, nextID) - if err != nil { - return err - } - - e.ident = nextID.LocalPort - return nil - }) - if err != nil { - return err - } - - e.rcvMu.Lock() - e.rcvReady = true - e.rcvMu.Unlock() - - return nil -} - -// ConnectEndpoint is not supported. -func (*endpoint) ConnectEndpoint(tcpip.Endpoint) tcpip.Error { - return &tcpip.ErrInvalidEndpointState{} -} - -// Shutdown closes the read and/or write end of the endpoint connection -// to its peer. -func (e *endpoint) Shutdown(flags tcpip.ShutdownFlags) tcpip.Error { - e.mu.Lock() - defer e.mu.Unlock() - - switch state := e.net.State(); state { - case transport.DatagramEndpointStateInitial, transport.DatagramEndpointStateClosed: - return &tcpip.ErrNotConnected{} - case transport.DatagramEndpointStateBound, transport.DatagramEndpointStateConnected: - default: - panic(fmt.Sprintf("unhandled state = %s", state)) - } - - if flags&tcpip.ShutdownWrite != 0 { - if err := e.net.Shutdown(); err != nil { - return err - } - } - - if flags&tcpip.ShutdownRead != 0 { - e.rcvMu.Lock() - wasClosed := e.rcvClosed - e.rcvClosed = true - e.rcvMu.Unlock() - - if !wasClosed { - e.waiterQueue.Notify(waiter.ReadableEvents) - } - } - - return nil -} - -// Listen is not supported by UDP, it just fails. -func (*endpoint) Listen(int) tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -// Accept is not supported by UDP, it just fails. -func (*endpoint) Accept(*tcpip.FullAddress) (tcpip.Endpoint, *waiter.Queue, tcpip.Error) { - return nil, nil, &tcpip.ErrNotSupported{} -} - -func (e *endpoint) registerWithStack(netProto tcpip.NetworkProtocolNumber, id stack.TransportEndpointID) (stack.TransportEndpointID, tcpip.Error) { - bindToDevice := tcpip.NICID(e.ops.GetBindToDevice()) - if id.LocalPort != 0 { - // The endpoint already has a local port, just attempt to - // register it. - return id, e.stack.RegisterTransportEndpoint([]tcpip.NetworkProtocolNumber{netProto}, e.transProto, id, e, ports.Flags{}, bindToDevice) - } - - // We need to find a port for the endpoint. - _, err := e.stack.PickEphemeralPort(e.stack.SecureRNG(), func(p uint16) (bool, tcpip.Error) { - id.LocalPort = p - err := e.stack.RegisterTransportEndpoint([]tcpip.NetworkProtocolNumber{netProto}, e.transProto, id, e, ports.Flags{}, bindToDevice) - switch err.(type) { - case nil: - return true, nil - case *tcpip.ErrPortInUse: - return false, nil - default: - return false, err - } - }) - - return id, err -} - -func (e *endpoint) bindLocked(addr tcpip.FullAddress) tcpip.Error { - // Don't allow binding once endpoint is not in the initial state - // anymore. - if e.net.State() != transport.DatagramEndpointStateInitial { - return &tcpip.ErrInvalidEndpointState{} - } - - err := e.net.BindAndThen(addr, func(boundNetProto tcpip.NetworkProtocolNumber, boundAddr tcpip.Address) tcpip.Error { - id := stack.TransportEndpointID{ - LocalPort: addr.Port, - LocalAddress: addr.Addr, - } - id, err := e.registerWithStack(boundNetProto, id) - if err != nil { - return err - } - - e.ident = id.LocalPort - return nil - }) - if err != nil { - return err - } - - e.rcvMu.Lock() - e.rcvReady = true - e.rcvMu.Unlock() - - return nil -} - -func (e *endpoint) isBroadcastOrMulticast(nicID tcpip.NICID, addr tcpip.Address) bool { - return addr == header.IPv4Broadcast || - header.IsV4MulticastAddress(addr) || - header.IsV6MulticastAddress(addr) || - e.stack.IsSubnetBroadcast(nicID, e.net.NetProto(), addr) -} - -// Bind binds the endpoint to a specific local address and port. -// Specifying a NIC is optional. -func (e *endpoint) Bind(addr tcpip.FullAddress) tcpip.Error { - if addr.Addr.BitLen() != 0 && e.isBroadcastOrMulticast(addr.NIC, addr.Addr) { - return &tcpip.ErrBadLocalAddress{} - } - - e.mu.Lock() - defer e.mu.Unlock() - - return e.bindLocked(addr) -} - -// GetLocalAddress returns the address to which the endpoint is bound. -func (e *endpoint) GetLocalAddress() (tcpip.FullAddress, tcpip.Error) { - e.mu.RLock() - defer e.mu.RUnlock() - - addr := e.net.GetLocalAddress() - addr.Port = e.ident - return addr, nil -} - -// GetRemoteAddress returns the address to which the endpoint is connected. -func (e *endpoint) GetRemoteAddress() (tcpip.FullAddress, tcpip.Error) { - e.mu.RLock() - defer e.mu.RUnlock() - - if addr, connected := e.net.GetRemoteAddress(); connected { - return addr, nil - } - - return tcpip.FullAddress{}, &tcpip.ErrNotConnected{} -} - -// Readiness returns the current readiness of the endpoint. For example, if -// waiter.EventIn is set, the endpoint is immediately readable. -func (e *endpoint) Readiness(mask waiter.EventMask) waiter.EventMask { - var result waiter.EventMask - - if e.net.HasSendSpace() { - result |= waiter.WritableEvents & mask - } - - // Determine if the endpoint is readable if requested. - if (mask & waiter.ReadableEvents) != 0 { - e.rcvMu.Lock() - if !e.rcvList.Empty() || e.rcvClosed { - result |= waiter.ReadableEvents - } - e.rcvMu.Unlock() - } - - return result -} - -// HandlePacket is called by the stack when new packets arrive to this transport -// endpoint. -func (e *endpoint) HandlePacket(id stack.TransportEndpointID, pkt *stack.PacketBuffer) { - // Only accept echo replies. - switch e.net.NetProto() { - case header.IPv4ProtocolNumber: - h := header.ICMPv4(pkt.TransportHeader().Slice()) - if len(h) < header.ICMPv4MinimumSize || h.Type() != header.ICMPv4EchoReply { - e.stack.Stats().DroppedPackets.Increment() - e.stats.ReceiveErrors.MalformedPacketsReceived.Increment() - return - } - case header.IPv6ProtocolNumber: - h := header.ICMPv6(pkt.TransportHeader().Slice()) - if len(h) < header.ICMPv6MinimumSize || h.Type() != header.ICMPv6EchoReply { - e.stack.Stats().DroppedPackets.Increment() - e.stats.ReceiveErrors.MalformedPacketsReceived.Increment() - return - } - } - - e.rcvMu.Lock() - - // Drop the packet if our buffer is currently full. - if !e.rcvReady || e.rcvClosed { - e.rcvMu.Unlock() - e.stack.Stats().DroppedPackets.Increment() - e.stats.ReceiveErrors.ClosedReceiver.Increment() - return - } - - rcvBufSize := e.ops.GetReceiveBufferSize() - if e.frozen || e.rcvBufSize >= int(rcvBufSize) { - e.rcvMu.Unlock() - e.stack.Stats().DroppedPackets.Increment() - e.stats.ReceiveErrors.ReceiveBufferOverflow.Increment() - return - } - - wasEmpty := e.rcvBufSize == 0 - - net := pkt.Network() - dstAddr := net.DestinationAddress() - // Push new packet into receive list and increment the buffer size. - packet := &icmpPacket{ - senderAddress: tcpip.FullAddress{ - NIC: pkt.NICID, - Addr: id.RemoteAddress, - }, - packetInfo: tcpip.IPPacketInfo{ - // Linux does not 'prepare' [1] in_pktinfo on socket buffers destined to - // ping sockets (unlike UDP/RAW sockets). However the interface index [2] - // and the Header Destination Address [3] are always filled. - // [1] https://github.com/torvalds/linux/blob/dcb85f85fa6/net/ipv4/ip_sockglue.c#L1392 - // [2] https://github.com/torvalds/linux/blob/dcb85f85fa6/net/ipv4/ip_input.c#L510 - // [3] https://github.com/torvalds/linux/blob/dcb85f85fa6/net/ipv4/ip_sockglue.c#L60 - NIC: pkt.NICID, - DestinationAddr: dstAddr, - }, - } - - // Save any useful information from the network header to the packet. - packet.tosOrTClass, _ = net.TOS() - switch pkt.NetworkProtocolNumber { - case header.IPv4ProtocolNumber: - packet.ttlOrHopLimit = header.IPv4(pkt.NetworkHeader().Slice()).TTL() - case header.IPv6ProtocolNumber: - packet.ttlOrHopLimit = header.IPv6(pkt.NetworkHeader().Slice()).HopLimit() - } - - // ICMP socket's data includes ICMP header but no others. Trim all other - // headers from the front of the packet. - pktBuf := pkt.ToBuffer() - pktBuf.TrimFront(int64(pkt.HeaderSize() - len(pkt.TransportHeader().Slice()))) - packet.data = stack.NewPacketBuffer(stack.PacketBufferOptions{Payload: pktBuf}) - - e.rcvList.PushBack(packet) - e.rcvBufSize += packet.data.Data().Size() - - packet.receivedAt = e.stack.Clock().Now() - - e.rcvMu.Unlock() - e.stats.PacketsReceived.Increment() - // Notify any waiters that there's data to be read now. - if wasEmpty { - e.waiterQueue.Notify(waiter.ReadableEvents) - } -} - -// HandleError implements stack.TransportEndpoint. -func (*endpoint) HandleError(stack.TransportError, *stack.PacketBuffer) {} - -// State implements tcpip.Endpoint.State. The ICMP endpoint currently doesn't -// expose internal socket state. -func (e *endpoint) State() uint32 { - return uint32(e.net.State()) -} - -// Info returns a copy of the endpoint info. -func (e *endpoint) Info() tcpip.EndpointInfo { - e.mu.RLock() - defer e.mu.RUnlock() - ret := e.net.Info() - ret.ID.LocalPort = e.ident - return &ret -} - -// Stats returns a pointer to the endpoint stats. -func (e *endpoint) Stats() tcpip.EndpointStats { - return &e.stats -} - -// Wait implements stack.TransportEndpoint.Wait. -func (*endpoint) Wait() {} - -// LastError implements tcpip.Endpoint.LastError. -func (*endpoint) LastError() tcpip.Error { - return nil -} - -// SocketOptions implements tcpip.Endpoint.SocketOptions. -func (e *endpoint) SocketOptions() *tcpip.SocketOptions { - return &e.ops -} - -// freeze prevents any more packets from being delivered to the endpoint. -func (e *endpoint) freeze() { - e.mu.Lock() - e.frozen = true - e.mu.Unlock() -} - -// thaw unfreezes a previously frozen endpoint using endpoint.freeze() allows -// new packets to be delivered again. -func (e *endpoint) thaw() { - e.mu.Lock() - e.frozen = false - e.mu.Unlock() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/icmp/endpoint_state.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/icmp/endpoint_state.go deleted file mode 100644 index 134797e8b0..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/icmp/endpoint_state.go +++ /dev/null @@ -1,76 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package icmp - -import ( - "context" - "fmt" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport" -) - -// saveReceivedAt is invoked by stateify. -func (p *icmpPacket) saveReceivedAt() int64 { - return p.receivedAt.UnixNano() -} - -// loadReceivedAt is invoked by stateify. -func (p *icmpPacket) loadReceivedAt(_ context.Context, nsec int64) { - p.receivedAt = time.Unix(0, nsec) -} - -// afterLoad is invoked by stateify. -func (e *endpoint) afterLoad(ctx context.Context) { - stack.RestoreStackFromContext(ctx).RegisterRestoredEndpoint(e) -} - -// beforeSave is invoked by stateify. -func (e *endpoint) beforeSave() { - e.freeze() - e.stack.RegisterResumableEndpoint(e) -} - -// Restore implements tcpip.RestoredEndpoint.Restore. -func (e *endpoint) Restore(s *stack.Stack) { - e.thaw() - - e.net.Resume(s) - - e.stack = s - e.ops.InitHandler(e, e.stack, tcpip.GetStackSendBufferLimits, tcpip.GetStackReceiveBufferLimits) - - switch state := e.net.State(); state { - case transport.DatagramEndpointStateInitial, transport.DatagramEndpointStateClosed: - case transport.DatagramEndpointStateBound, transport.DatagramEndpointStateConnected: - var err tcpip.Error - info := e.net.Info() - info.ID.LocalPort = e.ident - info.ID, err = e.registerWithStack(info.NetProto, info.ID) - if err != nil { - panic(fmt.Sprintf("e.registerWithStack(%d, %#v): %s", info.NetProto, info.ID, err)) - } - e.ident = info.ID.LocalPort - default: - panic(fmt.Sprintf("unhandled state = %s", state)) - } -} - -// Resume implements tcpip.ResumableEndpoint.Resume. -func (e *endpoint) Resume() { - e.thaw() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/icmp/icmp_packet_list.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/icmp/icmp_packet_list.go deleted file mode 100644 index 59de9946b5..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/icmp/icmp_packet_list.go +++ /dev/null @@ -1,239 +0,0 @@ -package icmp - -// ElementMapper provides an identity mapping by default. -// -// This can be replaced to provide a struct that maps elements to linker -// objects, if they are not the same. An ElementMapper is not typically -// required if: Linker is left as is, Element is left as is, or Linker and -// Element are the same type. -type icmpPacketElementMapper struct{} - -// linkerFor maps an Element to a Linker. -// -// This default implementation should be inlined. -// -//go:nosplit -func (icmpPacketElementMapper) linkerFor(elem *icmpPacket) *icmpPacket { return elem } - -// List is an intrusive list. Entries can be added to or removed from the list -// in O(1) time and with no additional memory allocations. -// -// The zero value for List is an empty list ready to use. -// -// To iterate over a list (where l is a List): -// -// for e := l.Front(); e != nil; e = e.Next() { -// // do something with e. -// } -// -// +stateify savable -type icmpPacketList struct { - head *icmpPacket - tail *icmpPacket -} - -// Reset resets list l to the empty state. -func (l *icmpPacketList) Reset() { - l.head = nil - l.tail = nil -} - -// Empty returns true iff the list is empty. -// -//go:nosplit -func (l *icmpPacketList) Empty() bool { - return l.head == nil -} - -// Front returns the first element of list l or nil. -// -//go:nosplit -func (l *icmpPacketList) Front() *icmpPacket { - return l.head -} - -// Back returns the last element of list l or nil. -// -//go:nosplit -func (l *icmpPacketList) Back() *icmpPacket { - return l.tail -} - -// Len returns the number of elements in the list. -// -// NOTE: This is an O(n) operation. -// -//go:nosplit -func (l *icmpPacketList) Len() (count int) { - for e := l.Front(); e != nil; e = (icmpPacketElementMapper{}.linkerFor(e)).Next() { - count++ - } - return count -} - -// PushFront inserts the element e at the front of list l. -// -//go:nosplit -func (l *icmpPacketList) PushFront(e *icmpPacket) { - linker := icmpPacketElementMapper{}.linkerFor(e) - linker.SetNext(l.head) - linker.SetPrev(nil) - if l.head != nil { - icmpPacketElementMapper{}.linkerFor(l.head).SetPrev(e) - } else { - l.tail = e - } - - l.head = e -} - -// PushFrontList inserts list m at the start of list l, emptying m. -// -//go:nosplit -func (l *icmpPacketList) PushFrontList(m *icmpPacketList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - icmpPacketElementMapper{}.linkerFor(l.head).SetPrev(m.tail) - icmpPacketElementMapper{}.linkerFor(m.tail).SetNext(l.head) - - l.head = m.head - } - m.head = nil - m.tail = nil -} - -// PushBack inserts the element e at the back of list l. -// -//go:nosplit -func (l *icmpPacketList) PushBack(e *icmpPacket) { - linker := icmpPacketElementMapper{}.linkerFor(e) - linker.SetNext(nil) - linker.SetPrev(l.tail) - if l.tail != nil { - icmpPacketElementMapper{}.linkerFor(l.tail).SetNext(e) - } else { - l.head = e - } - - l.tail = e -} - -// PushBackList inserts list m at the end of list l, emptying m. -// -//go:nosplit -func (l *icmpPacketList) PushBackList(m *icmpPacketList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - icmpPacketElementMapper{}.linkerFor(l.tail).SetNext(m.head) - icmpPacketElementMapper{}.linkerFor(m.head).SetPrev(l.tail) - - l.tail = m.tail - } - m.head = nil - m.tail = nil -} - -// InsertAfter inserts e after b. -// -//go:nosplit -func (l *icmpPacketList) InsertAfter(b, e *icmpPacket) { - bLinker := icmpPacketElementMapper{}.linkerFor(b) - eLinker := icmpPacketElementMapper{}.linkerFor(e) - - a := bLinker.Next() - - eLinker.SetNext(a) - eLinker.SetPrev(b) - bLinker.SetNext(e) - - if a != nil { - icmpPacketElementMapper{}.linkerFor(a).SetPrev(e) - } else { - l.tail = e - } -} - -// InsertBefore inserts e before a. -// -//go:nosplit -func (l *icmpPacketList) InsertBefore(a, e *icmpPacket) { - aLinker := icmpPacketElementMapper{}.linkerFor(a) - eLinker := icmpPacketElementMapper{}.linkerFor(e) - - b := aLinker.Prev() - eLinker.SetNext(a) - eLinker.SetPrev(b) - aLinker.SetPrev(e) - - if b != nil { - icmpPacketElementMapper{}.linkerFor(b).SetNext(e) - } else { - l.head = e - } -} - -// Remove removes e from l. -// -//go:nosplit -func (l *icmpPacketList) Remove(e *icmpPacket) { - linker := icmpPacketElementMapper{}.linkerFor(e) - prev := linker.Prev() - next := linker.Next() - - if prev != nil { - icmpPacketElementMapper{}.linkerFor(prev).SetNext(next) - } else if l.head == e { - l.head = next - } - - if next != nil { - icmpPacketElementMapper{}.linkerFor(next).SetPrev(prev) - } else if l.tail == e { - l.tail = prev - } - - linker.SetNext(nil) - linker.SetPrev(nil) -} - -// Entry is a default implementation of Linker. Users can add anonymous fields -// of this type to their structs to make them automatically implement the -// methods needed by List. -// -// +stateify savable -type icmpPacketEntry struct { - next *icmpPacket - prev *icmpPacket -} - -// Next returns the entry that follows e in the list. -// -//go:nosplit -func (e *icmpPacketEntry) Next() *icmpPacket { - return e.next -} - -// Prev returns the entry that precedes e in the list. -// -//go:nosplit -func (e *icmpPacketEntry) Prev() *icmpPacket { - return e.prev -} - -// SetNext assigns 'entry' as the entry that follows e in the list. -// -//go:nosplit -func (e *icmpPacketEntry) SetNext(elem *icmpPacket) { - e.next = elem -} - -// SetPrev assigns 'entry' as the entry that precedes e in the list. -// -//go:nosplit -func (e *icmpPacketEntry) SetPrev(elem *icmpPacket) { - e.prev = elem -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/icmp/icmp_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/icmp/icmp_state_autogen.go deleted file mode 100644 index ee6a8c2ecb..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/icmp/icmp_state_autogen.go +++ /dev/null @@ -1,201 +0,0 @@ -// automatically generated by stateify. - -package icmp - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (p *icmpPacket) StateTypeName() string { - return "pkg/tcpip/transport/icmp.icmpPacket" -} - -func (p *icmpPacket) StateFields() []string { - return []string{ - "icmpPacketEntry", - "senderAddress", - "packetInfo", - "data", - "receivedAt", - "tosOrTClass", - "ttlOrHopLimit", - } -} - -func (p *icmpPacket) beforeSave() {} - -// +checklocksignore -func (p *icmpPacket) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - var receivedAtValue int64 - receivedAtValue = p.saveReceivedAt() - stateSinkObject.SaveValue(4, receivedAtValue) - stateSinkObject.Save(0, &p.icmpPacketEntry) - stateSinkObject.Save(1, &p.senderAddress) - stateSinkObject.Save(2, &p.packetInfo) - stateSinkObject.Save(3, &p.data) - stateSinkObject.Save(5, &p.tosOrTClass) - stateSinkObject.Save(6, &p.ttlOrHopLimit) -} - -func (p *icmpPacket) afterLoad(context.Context) {} - -// +checklocksignore -func (p *icmpPacket) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.icmpPacketEntry) - stateSourceObject.Load(1, &p.senderAddress) - stateSourceObject.Load(2, &p.packetInfo) - stateSourceObject.Load(3, &p.data) - stateSourceObject.Load(5, &p.tosOrTClass) - stateSourceObject.Load(6, &p.ttlOrHopLimit) - stateSourceObject.LoadValue(4, new(int64), func(y any) { p.loadReceivedAt(ctx, y.(int64)) }) -} - -func (e *endpoint) StateTypeName() string { - return "pkg/tcpip/transport/icmp.endpoint" -} - -func (e *endpoint) StateFields() []string { - return []string{ - "DefaultSocketOptionsHandler", - "transProto", - "waiterQueue", - "net", - "stats", - "ops", - "rcvReady", - "rcvList", - "rcvBufSize", - "rcvClosed", - "frozen", - "ident", - } -} - -// +checklocksignore -func (e *endpoint) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.DefaultSocketOptionsHandler) - stateSinkObject.Save(1, &e.transProto) - stateSinkObject.Save(2, &e.waiterQueue) - stateSinkObject.Save(3, &e.net) - stateSinkObject.Save(4, &e.stats) - stateSinkObject.Save(5, &e.ops) - stateSinkObject.Save(6, &e.rcvReady) - stateSinkObject.Save(7, &e.rcvList) - stateSinkObject.Save(8, &e.rcvBufSize) - stateSinkObject.Save(9, &e.rcvClosed) - stateSinkObject.Save(10, &e.frozen) - stateSinkObject.Save(11, &e.ident) -} - -// +checklocksignore -func (e *endpoint) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.DefaultSocketOptionsHandler) - stateSourceObject.Load(1, &e.transProto) - stateSourceObject.Load(2, &e.waiterQueue) - stateSourceObject.Load(3, &e.net) - stateSourceObject.Load(4, &e.stats) - stateSourceObject.Load(5, &e.ops) - stateSourceObject.Load(6, &e.rcvReady) - stateSourceObject.Load(7, &e.rcvList) - stateSourceObject.Load(8, &e.rcvBufSize) - stateSourceObject.Load(9, &e.rcvClosed) - stateSourceObject.Load(10, &e.frozen) - stateSourceObject.Load(11, &e.ident) - stateSourceObject.AfterLoad(func() { e.afterLoad(ctx) }) -} - -func (l *icmpPacketList) StateTypeName() string { - return "pkg/tcpip/transport/icmp.icmpPacketList" -} - -func (l *icmpPacketList) StateFields() []string { - return []string{ - "head", - "tail", - } -} - -func (l *icmpPacketList) beforeSave() {} - -// +checklocksignore -func (l *icmpPacketList) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.head) - stateSinkObject.Save(1, &l.tail) -} - -func (l *icmpPacketList) afterLoad(context.Context) {} - -// +checklocksignore -func (l *icmpPacketList) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.head) - stateSourceObject.Load(1, &l.tail) -} - -func (e *icmpPacketEntry) StateTypeName() string { - return "pkg/tcpip/transport/icmp.icmpPacketEntry" -} - -func (e *icmpPacketEntry) StateFields() []string { - return []string{ - "next", - "prev", - } -} - -func (e *icmpPacketEntry) beforeSave() {} - -// +checklocksignore -func (e *icmpPacketEntry) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.next) - stateSinkObject.Save(1, &e.prev) -} - -func (e *icmpPacketEntry) afterLoad(context.Context) {} - -// +checklocksignore -func (e *icmpPacketEntry) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.next) - stateSourceObject.Load(1, &e.prev) -} - -func (p *protocol) StateTypeName() string { - return "pkg/tcpip/transport/icmp.protocol" -} - -func (p *protocol) StateFields() []string { - return []string{ - "stack", - "number", - } -} - -func (p *protocol) beforeSave() {} - -// +checklocksignore -func (p *protocol) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - stateSinkObject.Save(0, &p.stack) - stateSinkObject.Save(1, &p.number) -} - -func (p *protocol) afterLoad(context.Context) {} - -// +checklocksignore -func (p *protocol) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.stack) - stateSourceObject.Load(1, &p.number) -} - -func init() { - state.Register((*icmpPacket)(nil)) - state.Register((*endpoint)(nil)) - state.Register((*icmpPacketList)(nil)) - state.Register((*icmpPacketEntry)(nil)) - state.Register((*protocol)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/icmp/protocol.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/icmp/protocol.go deleted file mode 100644 index 8bca0fa5a9..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/icmp/protocol.go +++ /dev/null @@ -1,147 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package icmp contains the implementation of the ICMP and IPv6-ICMP transport -// protocols for use in ping. -package icmp - -import ( - "fmt" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport/raw" - "gvisor.dev/gvisor/pkg/waiter" -) - -const ( - // ProtocolNumber4 is the ICMP protocol number. - ProtocolNumber4 = header.ICMPv4ProtocolNumber - - // ProtocolNumber6 is the IPv6-ICMP protocol number. - ProtocolNumber6 = header.ICMPv6ProtocolNumber -) - -// protocol implements stack.TransportProtocol. -// -// +stateify savable -type protocol struct { - stack *stack.Stack - - number tcpip.TransportProtocolNumber -} - -// Number returns the ICMP protocol number. -func (p *protocol) Number() tcpip.TransportProtocolNumber { - return p.number -} - -func (p *protocol) netProto() tcpip.NetworkProtocolNumber { - switch p.number { - case ProtocolNumber4: - return header.IPv4ProtocolNumber - case ProtocolNumber6: - return header.IPv6ProtocolNumber - } - panic(fmt.Sprint("unknown protocol number: ", p.number)) -} - -// NewEndpoint creates a new icmp endpoint. It implements -// stack.TransportProtocol.NewEndpoint. -func (p *protocol) NewEndpoint(netProto tcpip.NetworkProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - if netProto != p.netProto() { - return nil, &tcpip.ErrUnknownProtocol{} - } - return newEndpoint(p.stack, netProto, p.number, waiterQueue) -} - -// NewRawEndpoint creates a new raw icmp endpoint. It implements -// stack.TransportProtocol.NewRawEndpoint. -func (p *protocol) NewRawEndpoint(netProto tcpip.NetworkProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - if netProto != p.netProto() { - return nil, &tcpip.ErrUnknownProtocol{} - } - return raw.NewEndpoint(p.stack, netProto, p.number, waiterQueue) -} - -// MinimumPacketSize returns the minimum valid icmp packet size. -func (p *protocol) MinimumPacketSize() int { - switch p.number { - case ProtocolNumber4: - return header.ICMPv4MinimumSize - case ProtocolNumber6: - return header.ICMPv6MinimumSize - } - panic(fmt.Sprint("unknown protocol number: ", p.number)) -} - -// ParsePorts in case of ICMP sets src to 0, dst to ICMP ID, and err to nil. -func (p *protocol) ParsePorts(v []byte) (src, dst uint16, err tcpip.Error) { - switch p.number { - case ProtocolNumber4: - hdr := header.ICMPv4(v) - return 0, hdr.Ident(), nil - case ProtocolNumber6: - hdr := header.ICMPv6(v) - return 0, hdr.Ident(), nil - } - panic(fmt.Sprint("unknown protocol number: ", p.number)) -} - -// HandleUnknownDestinationPacket handles packets targeted at this protocol but -// that don't match any existing endpoint. -func (*protocol) HandleUnknownDestinationPacket(stack.TransportEndpointID, *stack.PacketBuffer) stack.UnknownDestinationPacketDisposition { - return stack.UnknownDestinationPacketHandled -} - -// SetOption implements stack.TransportProtocol.SetOption. -func (*protocol) SetOption(tcpip.SettableTransportProtocolOption) tcpip.Error { - return &tcpip.ErrUnknownProtocolOption{} -} - -// Option implements stack.TransportProtocol.Option. -func (*protocol) Option(tcpip.GettableTransportProtocolOption) tcpip.Error { - return &tcpip.ErrUnknownProtocolOption{} -} - -// Close implements stack.TransportProtocol.Close. -func (*protocol) Close() {} - -// Wait implements stack.TransportProtocol.Wait. -func (*protocol) Wait() {} - -// Pause implements stack.TransportProtocol.Pause. -func (*protocol) Pause() {} - -// Resume implements stack.TransportProtocol.Resume. -func (*protocol) Resume() {} - -// Parse implements stack.TransportProtocol.Parse. -func (*protocol) Parse(pkt *stack.PacketBuffer) bool { - // Right now, the Parse() method is tied to enabled protocols passed into - // stack.New. This works for UDP and TCP, but we handle ICMP traffic even - // when netstack users don't pass ICMP as a supported protocol. - return false -} - -// NewProtocol4 returns an ICMPv4 transport protocol. -func NewProtocol4(s *stack.Stack) stack.TransportProtocol { - return &protocol{stack: s, number: ProtocolNumber4} -} - -// NewProtocol6 returns an ICMPv6 transport protocol. -func NewProtocol6(s *stack.Stack) stack.TransportProtocol { - return &protocol{stack: s, number: ProtocolNumber6} -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/internal/network/endpoint.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/internal/network/endpoint.go deleted file mode 100644 index 9b77ae36d2..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/internal/network/endpoint.go +++ /dev/null @@ -1,1052 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package network provides facilities to support tcpip.Endpoints that operate -// at the network layer or above. -package network - -import ( - "fmt" - - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport" - "gvisor.dev/gvisor/pkg/waiter" -) - -// Endpoint is a datagram-based endpoint. It only supports sending datagrams to -// a peer. -// -// +stateify savable -type Endpoint struct { - // The following fields must only be set once then never changed. - stack *stack.Stack `state:"manual"` - ops *tcpip.SocketOptions - netProto tcpip.NetworkProtocolNumber - transProto tcpip.TransportProtocolNumber - waiterQueue *waiter.Queue - - mu sync.RWMutex `state:"nosave"` - // +checklocks:mu - wasBound bool - // owner is the owner of transmitted packets. - // - // +checklocks:mu - owner tcpip.PacketOwner - // +checklocks:mu - writeShutdown bool - // +checklocks:mu - effectiveNetProto tcpip.NetworkProtocolNumber - // +checklocks:mu - connectedRoute *stack.Route `state:"manual"` - // +checklocks:mu - multicastMemberships map[multicastMembership]struct{} - // +checklocks:mu - ipv4TTL uint8 - // +checklocks:mu - ipv6HopLimit int16 - // TODO(https://gvisor.dev/issue/6389): Use different fields for IPv4/IPv6. - // +checklocks:mu - multicastTTL uint8 - // TODO(https://gvisor.dev/issue/6389): Use different fields for IPv4/IPv6. - // +checklocks:mu - multicastAddr tcpip.Address - // TODO(https://gvisor.dev/issue/6389): Use different fields for IPv4/IPv6. - // +checklocks:mu - multicastNICID tcpip.NICID - // +checklocks:mu - ipv4TOS uint8 - // +checklocks:mu - ipv6TClass uint8 - - // Lock ordering: mu > infoMu. - infoMu sync.RWMutex `state:"nosave"` - // info has a dedicated mutex so that we can avoid lock ordering violations - // when reading the endpoint's info. If we used mu, we need to guarantee - // that any lock taken while mu is held is not held when calling Info() - // which is not true as of writing (we hold mu while registering transport - // endpoints (taking the transport demuxer lock but we also hold the demuxer - // lock when delivering packets/errors to endpoints). - // - // Writes must be performed through setInfo. - // - // +checklocks:infoMu - info stack.TransportEndpointInfo - - // state holds a transport.DatagramBasedEndpointState. - // - // state must be accessed with atomics so that we can avoid lock ordering - // violations when reading the state. If we used mu, we need to guarantee - // that any lock taken while mu is held is not held when calling State() - // which is not true as of writing (we hold mu while registering transport - // endpoints (taking the transport demuxer lock but we also hold the demuxer - // lock when delivering packets/errors to endpoints). - // - // Writes must be performed through setEndpointState. - state atomicbitops.Uint32 - - // Callers should not attempt to obtain sendBufferSizeInUseMu while holding - // another lock on Endpoint. - sendBufferSizeInUseMu sync.RWMutex `state:"nosave"` - // sendBufferSizeInUse keeps track of the bytes in use by in-flight packets. - // - // +checklocks:sendBufferSizeInUseMu - sendBufferSizeInUse int64 `state:"nosave"` -} - -// +stateify savable -type multicastMembership struct { - nicID tcpip.NICID - multicastAddr tcpip.Address -} - -// Init initializes the endpoint. -func (e *Endpoint) Init(s *stack.Stack, netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber, ops *tcpip.SocketOptions, waiterQueue *waiter.Queue) { - e.mu.Lock() - defer e.mu.Unlock() - if e.multicastMemberships != nil { - panic(fmt.Sprintf("endpoint is already initialized; got e.multicastMemberships = %#v, want = nil", e.multicastMemberships)) - } - - switch netProto { - case header.IPv4ProtocolNumber, header.IPv6ProtocolNumber: - default: - panic(fmt.Sprintf("invalid protocol number = %d", netProto)) - } - - e.stack = s - e.ops = ops - e.netProto = netProto - e.transProto = transProto - e.waiterQueue = waiterQueue - e.infoMu.Lock() - e.info = stack.TransportEndpointInfo{ - NetProto: netProto, - TransProto: transProto, - } - e.infoMu.Unlock() - e.effectiveNetProto = netProto - e.ipv4TTL = tcpip.UseDefaultIPv4TTL - e.ipv6HopLimit = tcpip.UseDefaultIPv6HopLimit - - // Linux defaults to TTL=1. - e.multicastTTL = 1 - e.multicastMemberships = make(map[multicastMembership]struct{}) - e.setEndpointState(transport.DatagramEndpointStateInitial) -} - -// NetProto returns the network protocol the endpoint was initialized with. -func (e *Endpoint) NetProto() tcpip.NetworkProtocolNumber { - return e.netProto -} - -// setEndpointState sets the state of the endpoint. -// -// e.mu must be held to synchronize changes to state with the rest of the -// endpoint. -// -// +checklocks:e.mu -func (e *Endpoint) setEndpointState(state transport.DatagramEndpointState) { - e.state.Store(uint32(state)) -} - -// State returns the state of the endpoint. -func (e *Endpoint) State() transport.DatagramEndpointState { - return transport.DatagramEndpointState(e.state.Load()) -} - -// Close cleans the endpoint's resources and leaves the endpoint in a closed -// state. -func (e *Endpoint) Close() { - e.mu.Lock() - defer e.mu.Unlock() - - if e.State() == transport.DatagramEndpointStateClosed { - return - } - - for mem := range e.multicastMemberships { - e.stack.LeaveGroup(e.netProto, mem.nicID, mem.multicastAddr) - } - e.multicastMemberships = nil - - if e.connectedRoute != nil { - e.connectedRoute.Release() - e.connectedRoute = nil - } - - e.setEndpointState(transport.DatagramEndpointStateClosed) -} - -// SetOwner sets the owner of transmitted packets. -func (e *Endpoint) SetOwner(owner tcpip.PacketOwner) { - e.mu.Lock() - defer e.mu.Unlock() - e.owner = owner -} - -// +checklocksread:e.mu -func (e *Endpoint) calculateTTL(route *stack.Route) uint8 { - remoteAddress := route.RemoteAddress() - if header.IsV4MulticastAddress(remoteAddress) || header.IsV6MulticastAddress(remoteAddress) { - return e.multicastTTL - } - - switch netProto := route.NetProto(); netProto { - case header.IPv4ProtocolNumber: - if e.ipv4TTL == 0 { - return route.DefaultTTL() - } - return e.ipv4TTL - case header.IPv6ProtocolNumber: - if e.ipv6HopLimit == -1 { - return route.DefaultTTL() - } - return uint8(e.ipv6HopLimit) - default: - panic(fmt.Sprintf("invalid protocol number = %d", netProto)) - } -} - -// WriteContext holds the context for a write. -type WriteContext struct { - e *Endpoint - route *stack.Route - ttl uint8 - tos uint8 -} - -func (c *WriteContext) MTU() uint32 { - return c.route.MTU() -} - -// Release releases held resources. -func (c *WriteContext) Release() { - c.route.Release() - *c = WriteContext{} -} - -// WritePacketInfo is the properties of a packet that may be written. -type WritePacketInfo struct { - NetProto tcpip.NetworkProtocolNumber - LocalAddress, RemoteAddress tcpip.Address - MaxHeaderLength uint16 - RequiresTXTransportChecksum bool -} - -// PacketInfo returns the properties of a packet that will be written. -func (c *WriteContext) PacketInfo() WritePacketInfo { - return WritePacketInfo{ - NetProto: c.route.NetProto(), - LocalAddress: c.route.LocalAddress(), - RemoteAddress: c.route.RemoteAddress(), - MaxHeaderLength: c.route.MaxHeaderLength(), - RequiresTXTransportChecksum: c.route.RequiresTXTransportChecksum(), - } -} - -// TryNewPacketBuffer returns a new packet buffer iff the endpoint's send buffer -// is not full. -// -// If this method returns nil, the caller should wait for the endpoint to become -// writable. -func (c *WriteContext) TryNewPacketBuffer(reserveHdrBytes int, data buffer.Buffer) *stack.PacketBuffer { - e := c.e - - e.sendBufferSizeInUseMu.Lock() - defer e.sendBufferSizeInUseMu.Unlock() - - if !e.hasSendSpaceRLocked() { - return nil - } - return c.newPacketBufferLocked(reserveHdrBytes, data) -} - -// TryNewPacketBufferFromPayloader returns a new packet buffer iff the endpoint's send buffer -// is not full. Otherwise, data from `payloader` isn't read. -// -// If this method returns nil, the caller should wait for the endpoint to become -// writable. -func (c *WriteContext) TryNewPacketBufferFromPayloader(reserveHdrBytes int, payloader tcpip.Payloader) *stack.PacketBuffer { - e := c.e - - e.sendBufferSizeInUseMu.Lock() - defer e.sendBufferSizeInUseMu.Unlock() - - if !e.hasSendSpaceRLocked() { - return nil - } - var data buffer.Buffer - if _, err := data.WriteFromReader(payloader, int64(payloader.Len())); err != nil { - data.Release() - return nil - } - return c.newPacketBufferLocked(reserveHdrBytes, data) -} - -// +checklocks:c.e.sendBufferSizeInUseMu -func (c *WriteContext) newPacketBufferLocked(reserveHdrBytes int, data buffer.Buffer) *stack.PacketBuffer { - e := c.e - // Note that we allow oversubscription - if there is any space at all in the - // send buffer, we accept the full packet which may be larger than the space - // available. This is because if the endpoint reports that it is writable, - // a write operation should succeed. - // - // This matches Linux behaviour: - // https://github.com/torvalds/linux/blob/38d741cb70b/include/net/sock.h#L2519 - // https://github.com/torvalds/linux/blob/38d741cb70b/net/core/sock.c#L2588 - pktSize := int64(reserveHdrBytes) + int64(data.Size()) - e.sendBufferSizeInUse += pktSize - - return stack.NewPacketBuffer(stack.PacketBufferOptions{ - ReserveHeaderBytes: reserveHdrBytes, - Payload: data, - OnRelease: func() { - e.sendBufferSizeInUseMu.Lock() - if got := e.sendBufferSizeInUse; got < pktSize { - e.sendBufferSizeInUseMu.Unlock() - panic(fmt.Sprintf("e.sendBufferSizeInUse=(%d) < pktSize(=%d)", got, pktSize)) - } - e.sendBufferSizeInUse -= pktSize - signal := e.hasSendSpaceRLocked() - e.sendBufferSizeInUseMu.Unlock() - - // Let waiters know if we now have space in the send buffer. - if signal { - e.waiterQueue.Notify(waiter.WritableEvents) - } - }, - }) -} - -// WritePacket attempts to write the packet. -func (c *WriteContext) WritePacket(pkt *stack.PacketBuffer, headerIncluded bool) tcpip.Error { - c.e.mu.RLock() - pkt.Owner = c.e.owner - c.e.mu.RUnlock() - - if headerIncluded { - return c.route.WriteHeaderIncludedPacket(pkt) - } - - err := c.route.WritePacket(stack.NetworkHeaderParams{ - Protocol: c.e.transProto, - TTL: c.ttl, - TOS: c.tos, - }, pkt) - - if _, ok := err.(*tcpip.ErrNoBufferSpace); ok { - var recvErr bool - switch netProto := c.route.NetProto(); netProto { - case header.IPv4ProtocolNumber: - recvErr = c.e.ops.GetIPv4RecvError() - case header.IPv6ProtocolNumber: - recvErr = c.e.ops.GetIPv6RecvError() - default: - panic(fmt.Sprintf("unhandled network protocol number = %d", netProto)) - } - - // Linux only returns ENOBUFS to the caller if IP{,V6}_RECVERR is set. - // - // https://github.com/torvalds/linux/blob/3e71713c9e75c/net/ipv4/udp.c#L969 - // https://github.com/torvalds/linux/blob/3e71713c9e75c/net/ipv6/udp.c#L1260 - if !recvErr { - err = nil - } - } - - return err -} - -// MaybeSignalWritable signals waiters with writable events if the send buffer -// has space. -func (e *Endpoint) MaybeSignalWritable() { - e.sendBufferSizeInUseMu.RLock() - signal := e.hasSendSpaceRLocked() - e.sendBufferSizeInUseMu.RUnlock() - - if signal { - e.waiterQueue.Notify(waiter.WritableEvents) - } -} - -// HasSendSpace returns whether or not the send buffer has space. -func (e *Endpoint) HasSendSpace() bool { - e.sendBufferSizeInUseMu.RLock() - defer e.sendBufferSizeInUseMu.RUnlock() - return e.hasSendSpaceRLocked() -} - -// +checklocksread:e.sendBufferSizeInUseMu -func (e *Endpoint) hasSendSpaceRLocked() bool { - return e.ops.GetSendBufferSize() > e.sendBufferSizeInUse -} - -// AcquireContextForWrite acquires a WriteContext. -func (e *Endpoint) AcquireContextForWrite(opts tcpip.WriteOptions) (WriteContext, tcpip.Error) { - e.mu.RLock() - defer e.mu.RUnlock() - - // MSG_MORE is unimplemented. This also means that MSG_EOR is a no-op. - if opts.More { - return WriteContext{}, &tcpip.ErrInvalidOptionValue{} - } - - if e.State() == transport.DatagramEndpointStateClosed { - return WriteContext{}, &tcpip.ErrInvalidEndpointState{} - } - - if e.writeShutdown { - return WriteContext{}, &tcpip.ErrClosedForSend{} - } - - ipv6PktInfoValid := e.effectiveNetProto == header.IPv6ProtocolNumber && opts.ControlMessages.HasIPv6PacketInfo - - route := e.connectedRoute - to := opts.To - info := e.Info() - switch { - case to == nil: - // If the user doesn't specify a destination, they should have - // connected to another address. - if e.State() != transport.DatagramEndpointStateConnected { - return WriteContext{}, &tcpip.ErrDestinationRequired{} - } - - if !ipv6PktInfoValid { - route.Acquire() - break - } - - // We are connected and the caller did not specify the destination but - // we have an IPv6 packet info structure which may change our local - // interface/address used to send the packet so we need to construct - // a new route instead of using the connected route. - // - // Construct a destination matching the remote the endpoint is connected - // to. - to = &tcpip.FullAddress{ - // RegisterNICID is set when the endpoint is connected. It is usually - // only set for link-local addresses or multicast addresses if the - // multicast interface was specified (see e.multicastNICID, - // e.connectRouteRLocked and e.ConnectAndThen). - NIC: info.RegisterNICID, - Addr: info.ID.RemoteAddress, - } - fallthrough - default: - // Reject destination address if it goes through a different - // NIC than the endpoint was bound to. - nicID := to.NIC - if nicID == 0 { - nicID = tcpip.NICID(e.ops.GetBindToDevice()) - } - - var localAddr tcpip.Address - if ipv6PktInfoValid { - // Uphold strong-host semantics since (as of writing) the stack follows - // the strong host model. - - pktInfoNICID := opts.ControlMessages.IPv6PacketInfo.NIC - pktInfoAddr := opts.ControlMessages.IPv6PacketInfo.Addr - - if pktInfoNICID != 0 { - // If we are bound to an interface or specified the destination - // interface (usually when using link-local addresses), make sure the - // interface matches the specified local interface. - if nicID != 0 && nicID != pktInfoNICID { - return WriteContext{}, &tcpip.ErrHostUnreachable{} - } - - // If a local address is not specified, then we need to make sure the - // bound address belongs to the specified local interface. - if pktInfoAddr.BitLen() == 0 { - // If the bound interface is different from the specified local - // interface, the bound address obviously does not belong to the - // specified local interface. - // - // The bound interface is usually only set for link-local addresses. - if info.BindNICID != 0 && info.BindNICID != pktInfoNICID { - return WriteContext{}, &tcpip.ErrHostUnreachable{} - } - if info.ID.LocalAddress.BitLen() != 0 && e.stack.CheckLocalAddress(pktInfoNICID, header.IPv6ProtocolNumber, info.ID.LocalAddress) == 0 { - return WriteContext{}, &tcpip.ErrBadLocalAddress{} - } - } - - nicID = pktInfoNICID - } - - if pktInfoAddr.BitLen() != 0 { - // The local address must belong to the stack. If an outgoing interface - // is specified as a result of binding the endpoint to a device, or - // specifying the outgoing interface in the destination address/pkt info - // structure, the address must belong to that interface. - if e.stack.CheckLocalAddress(nicID, header.IPv6ProtocolNumber, pktInfoAddr) == 0 { - return WriteContext{}, &tcpip.ErrBadLocalAddress{} - } - - localAddr = pktInfoAddr - } - } else { - if info.BindNICID != 0 { - if nicID != 0 && nicID != info.BindNICID { - return WriteContext{}, &tcpip.ErrHostUnreachable{} - } - - nicID = info.BindNICID - } - if nicID == 0 { - nicID = info.RegisterNICID - } - } - - dst, netProto, err := e.checkV4Mapped(*to, false /* bind */) - if err != nil { - return WriteContext{}, err - } - - route, _, err = e.connectRouteRLocked(nicID, localAddr, dst, netProto) - if err != nil { - return WriteContext{}, err - } - } - - if !e.ops.GetBroadcast() && route.IsOutboundBroadcast() { - route.Release() - return WriteContext{}, &tcpip.ErrBroadcastDisabled{} - } - - var tos uint8 - var ttl uint8 - switch netProto := route.NetProto(); netProto { - case header.IPv4ProtocolNumber: - tos = e.ipv4TOS - if opts.ControlMessages.HasTTL { - ttl = opts.ControlMessages.TTL - } else { - ttl = e.calculateTTL(route) - } - case header.IPv6ProtocolNumber: - tos = e.ipv6TClass - if opts.ControlMessages.HasHopLimit { - ttl = opts.ControlMessages.HopLimit - } else { - ttl = e.calculateTTL(route) - } - default: - panic(fmt.Sprintf("invalid protocol number = %d", netProto)) - } - - return WriteContext{ - e: e, - route: route, - ttl: ttl, - tos: tos, - }, nil -} - -// Disconnect disconnects the endpoint from its peer. -func (e *Endpoint) Disconnect() { - e.mu.Lock() - defer e.mu.Unlock() - - if e.State() != transport.DatagramEndpointStateConnected { - return - } - - info := e.Info() - // Exclude ephemerally bound endpoints. - if e.wasBound { - info.ID = stack.TransportEndpointID{ - LocalAddress: info.BindAddr, - } - e.setEndpointState(transport.DatagramEndpointStateBound) - } else { - info.ID = stack.TransportEndpointID{} - e.setEndpointState(transport.DatagramEndpointStateInitial) - } - e.setInfo(info) - - e.connectedRoute.Release() - e.connectedRoute = nil -} - -// connectRouteRLocked establishes a route to the specified interface or the -// configured multicast interface if no interface is specified and the -// specified address is a multicast address. -// -// +checklocksread:e.mu -func (e *Endpoint) connectRouteRLocked(nicID tcpip.NICID, localAddr tcpip.Address, addr tcpip.FullAddress, netProto tcpip.NetworkProtocolNumber) (*stack.Route, tcpip.NICID, tcpip.Error) { - if localAddr.BitLen() == 0 { - localAddr = e.Info().ID.LocalAddress - if e.isBroadcastOrMulticast(nicID, netProto, localAddr) { - // A packet can only originate from a unicast address (i.e., an interface). - localAddr = tcpip.Address{} - } - - if header.IsV4MulticastAddress(addr.Addr) || header.IsV6MulticastAddress(addr.Addr) { - if nicID == 0 { - nicID = e.multicastNICID - } - if localAddr == (tcpip.Address{}) && nicID == 0 { - localAddr = e.multicastAddr - } - } - } - - // Find a route to the desired destination. - r, err := e.stack.FindRoute(nicID, localAddr, addr.Addr, netProto, e.ops.GetMulticastLoop()) - if err != nil { - return nil, 0, err - } - return r, nicID, nil -} - -// Connect connects the endpoint to the address. -func (e *Endpoint) Connect(addr tcpip.FullAddress) tcpip.Error { - return e.ConnectAndThen(addr, func(_ tcpip.NetworkProtocolNumber, _, _ stack.TransportEndpointID) tcpip.Error { - return nil - }) -} - -// ConnectAndThen connects the endpoint to the address and then calls the -// provided function. -// -// If the function returns an error, the endpoint's state does not change. The -// function will be called with the network protocol used to connect to the peer -// and the source and destination addresses that will be used to send traffic to -// the peer. -func (e *Endpoint) ConnectAndThen(addr tcpip.FullAddress, f func(netProto tcpip.NetworkProtocolNumber, previousID, nextID stack.TransportEndpointID) tcpip.Error) tcpip.Error { - addr.Port = 0 - - e.mu.Lock() - defer e.mu.Unlock() - - info := e.Info() - nicID := addr.NIC - switch e.State() { - case transport.DatagramEndpointStateInitial: - case transport.DatagramEndpointStateBound, transport.DatagramEndpointStateConnected: - if info.BindNICID == 0 { - break - } - - if nicID != 0 && nicID != info.BindNICID { - return &tcpip.ErrInvalidEndpointState{} - } - - nicID = info.BindNICID - default: - return &tcpip.ErrInvalidEndpointState{} - } - - addr, netProto, err := e.checkV4Mapped(addr, false /* bind */) - if err != nil { - return err - } - - r, nicID, err := e.connectRouteRLocked(nicID, tcpip.Address{}, addr, netProto) - if err != nil { - return err - } - - id := stack.TransportEndpointID{ - LocalAddress: info.ID.LocalAddress, - RemoteAddress: r.RemoteAddress(), - } - if e.State() == transport.DatagramEndpointStateInitial { - id.LocalAddress = r.LocalAddress() - } - - if err := f(r.NetProto(), info.ID, id); err != nil { - r.Release() - return err - } - - if e.connectedRoute != nil { - // If the endpoint was previously connected then release any previous route. - e.connectedRoute.Release() - } - e.connectedRoute = r - info.ID = id - info.RegisterNICID = nicID - e.setInfo(info) - e.effectiveNetProto = netProto - e.setEndpointState(transport.DatagramEndpointStateConnected) - return nil -} - -// Shutdown shutsdown the endpoint. -func (e *Endpoint) Shutdown() tcpip.Error { - e.mu.Lock() - defer e.mu.Unlock() - - switch state := e.State(); state { - case transport.DatagramEndpointStateInitial, transport.DatagramEndpointStateClosed: - return &tcpip.ErrNotConnected{} - case transport.DatagramEndpointStateBound, transport.DatagramEndpointStateConnected: - e.writeShutdown = true - return nil - default: - panic(fmt.Sprintf("unhandled state = %s", state)) - } -} - -// checkV4MappedRLocked determines the effective network protocol and converts -// addr to its canonical form. -func (e *Endpoint) checkV4Mapped(addr tcpip.FullAddress, bind bool) (tcpip.FullAddress, tcpip.NetworkProtocolNumber, tcpip.Error) { - info := e.Info() - unwrapped, netProto, err := info.AddrNetProtoLocked(addr, e.ops.GetV6Only(), bind) - if err != nil { - return tcpip.FullAddress{}, 0, err - } - return unwrapped, netProto, nil -} - -func (e *Endpoint) isBroadcastOrMulticast(nicID tcpip.NICID, netProto tcpip.NetworkProtocolNumber, addr tcpip.Address) bool { - return addr == header.IPv4Broadcast || header.IsV4MulticastAddress(addr) || header.IsV6MulticastAddress(addr) || e.stack.IsSubnetBroadcast(nicID, netProto, addr) -} - -// Bind binds the endpoint to the address. -func (e *Endpoint) Bind(addr tcpip.FullAddress) tcpip.Error { - return e.BindAndThen(addr, func(tcpip.NetworkProtocolNumber, tcpip.Address) tcpip.Error { - return nil - }) -} - -// BindAndThen binds the endpoint to the address and then calls the provided -// function. -// -// If the function returns an error, the endpoint's state does not change. The -// function will be called with the bound network protocol and address. -func (e *Endpoint) BindAndThen(addr tcpip.FullAddress, f func(tcpip.NetworkProtocolNumber, tcpip.Address) tcpip.Error) tcpip.Error { - addr.Port = 0 - - e.mu.Lock() - defer e.mu.Unlock() - - // Don't allow binding once endpoint is not in the initial state - // anymore. - if e.State() != transport.DatagramEndpointStateInitial { - return &tcpip.ErrInvalidEndpointState{} - } - - addr, netProto, err := e.checkV4Mapped(addr, true /* bind */) - if err != nil { - return err - } - - nicID := addr.NIC - if addr.Addr.BitLen() != 0 && !e.isBroadcastOrMulticast(addr.NIC, netProto, addr.Addr) { - nicID = e.stack.CheckLocalAddress(nicID, netProto, addr.Addr) - if nicID == 0 { - return &tcpip.ErrBadLocalAddress{} - } - } - - if err := f(netProto, addr.Addr); err != nil { - return err - } - - e.wasBound = true - - info := e.Info() - info.ID = stack.TransportEndpointID{ - LocalAddress: addr.Addr, - } - info.BindNICID = addr.NIC - info.RegisterNICID = nicID - info.BindAddr = addr.Addr - e.setInfo(info) - e.effectiveNetProto = netProto - e.setEndpointState(transport.DatagramEndpointStateBound) - return nil -} - -// WasBound returns true iff the endpoint was ever bound. -func (e *Endpoint) WasBound() bool { - e.mu.RLock() - defer e.mu.RUnlock() - return e.wasBound -} - -// GetLocalAddress returns the address that the endpoint is bound to. -func (e *Endpoint) GetLocalAddress() tcpip.FullAddress { - e.mu.RLock() - defer e.mu.RUnlock() - - info := e.Info() - addr := info.BindAddr - if e.State() == transport.DatagramEndpointStateConnected { - addr = e.connectedRoute.LocalAddress() - } - - return tcpip.FullAddress{ - NIC: info.RegisterNICID, - Addr: addr, - } -} - -// GetRemoteAddress returns the address that the endpoint is connected to. -func (e *Endpoint) GetRemoteAddress() (tcpip.FullAddress, bool) { - e.mu.RLock() - defer e.mu.RUnlock() - - if e.State() != transport.DatagramEndpointStateConnected { - return tcpip.FullAddress{}, false - } - - return tcpip.FullAddress{ - Addr: e.connectedRoute.RemoteAddress(), - NIC: e.Info().RegisterNICID, - }, true -} - -// SetSockOptInt sets the socket option. -func (e *Endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) tcpip.Error { - switch opt { - case tcpip.MTUDiscoverOption: - // Return not supported if the value is not disabling path - // MTU discovery. - if tcpip.PMTUDStrategy(v) != tcpip.PMTUDiscoveryDont { - return &tcpip.ErrNotSupported{} - } - - case tcpip.MulticastTTLOption: - e.mu.Lock() - e.multicastTTL = uint8(v) - e.mu.Unlock() - - case tcpip.IPv4TTLOption: - e.mu.Lock() - e.ipv4TTL = uint8(v) - e.mu.Unlock() - - case tcpip.IPv6HopLimitOption: - e.mu.Lock() - e.ipv6HopLimit = int16(v) - e.mu.Unlock() - - case tcpip.IPv4TOSOption: - e.mu.Lock() - e.ipv4TOS = uint8(v) - e.mu.Unlock() - - case tcpip.IPv6TrafficClassOption: - e.mu.Lock() - e.ipv6TClass = uint8(v) - e.mu.Unlock() - } - - return nil -} - -// GetSockOptInt returns the socket option. -func (e *Endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, tcpip.Error) { - switch opt { - case tcpip.MTUDiscoverOption: - // The only supported setting is path MTU discovery disabled. - return int(tcpip.PMTUDiscoveryDont), nil - - case tcpip.MulticastTTLOption: - e.mu.Lock() - v := int(e.multicastTTL) - e.mu.Unlock() - return v, nil - - case tcpip.IPv4TTLOption: - e.mu.Lock() - v := int(e.ipv4TTL) - e.mu.Unlock() - return v, nil - - case tcpip.IPv6HopLimitOption: - e.mu.Lock() - v := int(e.ipv6HopLimit) - e.mu.Unlock() - return v, nil - - case tcpip.IPv4TOSOption: - e.mu.RLock() - v := int(e.ipv4TOS) - e.mu.RUnlock() - return v, nil - - case tcpip.IPv6TrafficClassOption: - e.mu.RLock() - v := int(e.ipv6TClass) - e.mu.RUnlock() - return v, nil - - default: - return -1, &tcpip.ErrUnknownProtocolOption{} - } -} - -// SetSockOpt sets the socket option. -func (e *Endpoint) SetSockOpt(opt tcpip.SettableSocketOption) tcpip.Error { - switch v := opt.(type) { - case *tcpip.MulticastInterfaceOption: - e.mu.Lock() - defer e.mu.Unlock() - - fa := tcpip.FullAddress{Addr: v.InterfaceAddr} - fa, netProto, err := e.checkV4Mapped(fa, true /* bind */) - if err != nil { - return err - } - nic := v.NIC - addr := fa.Addr - - if nic == 0 && addr == (tcpip.Address{}) { - e.multicastAddr = tcpip.Address{} - e.multicastNICID = 0 - break - } - - if nic != 0 { - if !e.stack.CheckNIC(nic) { - return &tcpip.ErrBadLocalAddress{} - } - } else { - nic = e.stack.CheckLocalAddress(0, netProto, addr) - if nic == 0 { - return &tcpip.ErrBadLocalAddress{} - } - } - - if info := e.Info(); info.BindNICID != 0 && info.BindNICID != nic { - return &tcpip.ErrInvalidEndpointState{} - } - - e.multicastNICID = nic - e.multicastAddr = addr - - case *tcpip.AddMembershipOption: - if !(header.IsV4MulticastAddress(v.MulticastAddr) && e.netProto == header.IPv4ProtocolNumber) && !(header.IsV6MulticastAddress(v.MulticastAddr) && e.netProto == header.IPv6ProtocolNumber) { - return &tcpip.ErrInvalidOptionValue{} - } - - nicID := v.NIC - - if v.InterfaceAddr.Unspecified() { - if nicID == 0 { - if r, err := e.stack.FindRoute(0, tcpip.Address{}, v.MulticastAddr, e.netProto, false /* multicastLoop */); err == nil { - nicID = r.NICID() - r.Release() - } - } - } else { - nicID = e.stack.CheckLocalAddress(nicID, e.netProto, v.InterfaceAddr) - } - if nicID == 0 { - return &tcpip.ErrUnknownDevice{} - } - - memToInsert := multicastMembership{nicID: nicID, multicastAddr: v.MulticastAddr} - - e.mu.Lock() - defer e.mu.Unlock() - - if _, ok := e.multicastMemberships[memToInsert]; ok { - return &tcpip.ErrPortInUse{} - } - - if err := e.stack.JoinGroup(e.netProto, nicID, v.MulticastAddr); err != nil { - return err - } - - e.multicastMemberships[memToInsert] = struct{}{} - - case *tcpip.RemoveMembershipOption: - if !(header.IsV4MulticastAddress(v.MulticastAddr) && e.netProto == header.IPv4ProtocolNumber) && !(header.IsV6MulticastAddress(v.MulticastAddr) && e.netProto == header.IPv6ProtocolNumber) { - return &tcpip.ErrInvalidOptionValue{} - } - - nicID := v.NIC - if v.InterfaceAddr.Unspecified() { - if nicID == 0 { - if r, err := e.stack.FindRoute(0, tcpip.Address{}, v.MulticastAddr, e.netProto, false /* multicastLoop */); err == nil { - nicID = r.NICID() - r.Release() - } - } - } else { - nicID = e.stack.CheckLocalAddress(nicID, e.netProto, v.InterfaceAddr) - } - if nicID == 0 { - return &tcpip.ErrUnknownDevice{} - } - - memToRemove := multicastMembership{nicID: nicID, multicastAddr: v.MulticastAddr} - - e.mu.Lock() - defer e.mu.Unlock() - - if _, ok := e.multicastMemberships[memToRemove]; !ok { - return &tcpip.ErrBadLocalAddress{} - } - - if err := e.stack.LeaveGroup(e.netProto, nicID, v.MulticastAddr); err != nil { - return err - } - - delete(e.multicastMemberships, memToRemove) - - case *tcpip.SocketDetachFilterOption: - return nil - } - return nil -} - -// GetSockOpt returns the socket option. -func (e *Endpoint) GetSockOpt(opt tcpip.GettableSocketOption) tcpip.Error { - switch o := opt.(type) { - case *tcpip.MulticastInterfaceOption: - e.mu.Lock() - *o = tcpip.MulticastInterfaceOption{ - NIC: e.multicastNICID, - InterfaceAddr: e.multicastAddr, - } - e.mu.Unlock() - - default: - return &tcpip.ErrUnknownProtocolOption{} - } - return nil -} - -// Info returns a copy of the endpoint info. -func (e *Endpoint) Info() stack.TransportEndpointInfo { - e.infoMu.RLock() - defer e.infoMu.RUnlock() - return e.info -} - -// setInfo sets the endpoint's info. -// -// e.mu must be held to synchronize changes to info with the rest of the -// endpoint. -// -// +checklocks:e.mu -func (e *Endpoint) setInfo(info stack.TransportEndpointInfo) { - e.infoMu.Lock() - defer e.infoMu.Unlock() - e.info = info -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/internal/network/endpoint_state.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/internal/network/endpoint_state.go deleted file mode 100644 index d495029671..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/internal/network/endpoint_state.go +++ /dev/null @@ -1,58 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package network - -import ( - "fmt" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport" -) - -// Resume implements tcpip.ResumableEndpoint.Resume. -func (e *Endpoint) Resume(s *stack.Stack) { - e.mu.Lock() - defer e.mu.Unlock() - - e.stack = s - - for m := range e.multicastMemberships { - if err := e.stack.JoinGroup(e.netProto, m.nicID, m.multicastAddr); err != nil { - panic(fmt.Sprintf("e.stack.JoinGroup(%d, %d, %s): %s", e.netProto, m.nicID, m.multicastAddr, err)) - } - } - - info := e.Info() - - switch state := e.State(); state { - case transport.DatagramEndpointStateInitial, transport.DatagramEndpointStateClosed: - case transport.DatagramEndpointStateBound: - if info.ID.LocalAddress.BitLen() != 0 && !e.isBroadcastOrMulticast(info.RegisterNICID, e.effectiveNetProto, info.ID.LocalAddress) { - if e.stack.CheckLocalAddress(info.RegisterNICID, e.effectiveNetProto, info.ID.LocalAddress) == 0 { - panic(fmt.Sprintf("got e.stack.CheckLocalAddress(%d, %d, %s) = 0, want != 0", info.RegisterNICID, e.effectiveNetProto, info.ID.LocalAddress)) - } - } - case transport.DatagramEndpointStateConnected: - var err tcpip.Error - multicastLoop := e.ops.GetMulticastLoop() - e.connectedRoute, err = e.stack.FindRoute(info.RegisterNICID, info.ID.LocalAddress, info.ID.RemoteAddress, e.effectiveNetProto, multicastLoop) - if err != nil { - panic(fmt.Sprintf("e.stack.FindRoute(%d, %s, %s, %d, %t): %s", info.RegisterNICID, info.ID.LocalAddress, info.ID.RemoteAddress, e.effectiveNetProto, multicastLoop, err)) - } - default: - panic(fmt.Sprintf("unhandled state = %s", state)) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/internal/network/network_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/internal/network/network_state_autogen.go deleted file mode 100644 index f3e38fc867..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/internal/network/network_state_autogen.go +++ /dev/null @@ -1,118 +0,0 @@ -// automatically generated by stateify. - -package network - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (e *Endpoint) StateTypeName() string { - return "pkg/tcpip/transport/internal/network.Endpoint" -} - -func (e *Endpoint) StateFields() []string { - return []string{ - "ops", - "netProto", - "transProto", - "waiterQueue", - "wasBound", - "owner", - "writeShutdown", - "effectiveNetProto", - "multicastMemberships", - "ipv4TTL", - "ipv6HopLimit", - "multicastTTL", - "multicastAddr", - "multicastNICID", - "ipv4TOS", - "ipv6TClass", - "info", - "state", - } -} - -func (e *Endpoint) beforeSave() {} - -// +checklocksignore -func (e *Endpoint) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.ops) - stateSinkObject.Save(1, &e.netProto) - stateSinkObject.Save(2, &e.transProto) - stateSinkObject.Save(3, &e.waiterQueue) - stateSinkObject.Save(4, &e.wasBound) - stateSinkObject.Save(5, &e.owner) - stateSinkObject.Save(6, &e.writeShutdown) - stateSinkObject.Save(7, &e.effectiveNetProto) - stateSinkObject.Save(8, &e.multicastMemberships) - stateSinkObject.Save(9, &e.ipv4TTL) - stateSinkObject.Save(10, &e.ipv6HopLimit) - stateSinkObject.Save(11, &e.multicastTTL) - stateSinkObject.Save(12, &e.multicastAddr) - stateSinkObject.Save(13, &e.multicastNICID) - stateSinkObject.Save(14, &e.ipv4TOS) - stateSinkObject.Save(15, &e.ipv6TClass) - stateSinkObject.Save(16, &e.info) - stateSinkObject.Save(17, &e.state) -} - -func (e *Endpoint) afterLoad(context.Context) {} - -// +checklocksignore -func (e *Endpoint) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.ops) - stateSourceObject.Load(1, &e.netProto) - stateSourceObject.Load(2, &e.transProto) - stateSourceObject.Load(3, &e.waiterQueue) - stateSourceObject.Load(4, &e.wasBound) - stateSourceObject.Load(5, &e.owner) - stateSourceObject.Load(6, &e.writeShutdown) - stateSourceObject.Load(7, &e.effectiveNetProto) - stateSourceObject.Load(8, &e.multicastMemberships) - stateSourceObject.Load(9, &e.ipv4TTL) - stateSourceObject.Load(10, &e.ipv6HopLimit) - stateSourceObject.Load(11, &e.multicastTTL) - stateSourceObject.Load(12, &e.multicastAddr) - stateSourceObject.Load(13, &e.multicastNICID) - stateSourceObject.Load(14, &e.ipv4TOS) - stateSourceObject.Load(15, &e.ipv6TClass) - stateSourceObject.Load(16, &e.info) - stateSourceObject.Load(17, &e.state) -} - -func (m *multicastMembership) StateTypeName() string { - return "pkg/tcpip/transport/internal/network.multicastMembership" -} - -func (m *multicastMembership) StateFields() []string { - return []string{ - "nicID", - "multicastAddr", - } -} - -func (m *multicastMembership) beforeSave() {} - -// +checklocksignore -func (m *multicastMembership) StateSave(stateSinkObject state.Sink) { - m.beforeSave() - stateSinkObject.Save(0, &m.nicID) - stateSinkObject.Save(1, &m.multicastAddr) -} - -func (m *multicastMembership) afterLoad(context.Context) {} - -// +checklocksignore -func (m *multicastMembership) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &m.nicID) - stateSourceObject.Load(1, &m.multicastAddr) -} - -func init() { - state.Register((*Endpoint)(nil)) - state.Register((*multicastMembership)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/internal/noop/endpoint.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/internal/noop/endpoint.go deleted file mode 100644 index be2adae1c5..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/internal/noop/endpoint.go +++ /dev/null @@ -1,177 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package noop contains an endpoint that implements all tcpip.Endpoint -// functions as noops. -package noop - -import ( - "fmt" - "io" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/waiter" -) - -// endpoint can be created, but all interactions have no effect or -// return errors. -// -// +stateify savable -type endpoint struct { - tcpip.DefaultSocketOptionsHandler - ops tcpip.SocketOptions -} - -// New returns an initialized noop endpoint. -func New(stk *stack.Stack) tcpip.Endpoint { - // ep.ops must be in a valid, initialized state for callers of - // ep.SocketOptions. - var ep endpoint - ep.ops.InitHandler(&ep, stk, tcpip.GetStackSendBufferLimits, tcpip.GetStackReceiveBufferLimits) - return &ep -} - -// Abort implements stack.TransportEndpoint.Abort. -func (*endpoint) Abort() { - // No-op. -} - -// Close implements tcpip.Endpoint.Close. -func (*endpoint) Close() { - // No-op. -} - -// ModerateRecvBuf implements tcpip.Endpoint.ModerateRecvBuf. -func (*endpoint) ModerateRecvBuf(int) { - // No-op. -} - -func (*endpoint) SetOwner(tcpip.PacketOwner) { - // No-op. -} - -// Read implements tcpip.Endpoint.Read. -func (*endpoint) Read(io.Writer, tcpip.ReadOptions) (tcpip.ReadResult, tcpip.Error) { - return tcpip.ReadResult{}, &tcpip.ErrNotPermitted{} -} - -// Write implements tcpip.Endpoint.Write. -func (*endpoint) Write(tcpip.Payloader, tcpip.WriteOptions) (int64, tcpip.Error) { - return 0, &tcpip.ErrNotPermitted{} -} - -// Disconnect implements tcpip.Endpoint.Disconnect. -func (*endpoint) Disconnect() tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -// Connect implements tcpip.Endpoint.Connect. -func (*endpoint) Connect(tcpip.FullAddress) tcpip.Error { - return &tcpip.ErrNotPermitted{} -} - -// Shutdown implements tcpip.Endpoint.Shutdown. -func (*endpoint) Shutdown(tcpip.ShutdownFlags) tcpip.Error { - return &tcpip.ErrNotPermitted{} -} - -// Listen implements tcpip.Endpoint.Listen. -func (*endpoint) Listen(int) tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -// Accept implements tcpip.Endpoint.Accept. -func (*endpoint) Accept(*tcpip.FullAddress) (tcpip.Endpoint, *waiter.Queue, tcpip.Error) { - return nil, nil, &tcpip.ErrNotSupported{} -} - -// Bind implements tcpip.Endpoint.Bind. -func (*endpoint) Bind(tcpip.FullAddress) tcpip.Error { - return &tcpip.ErrNotPermitted{} -} - -// GetLocalAddress implements tcpip.Endpoint.GetLocalAddress. -func (*endpoint) GetLocalAddress() (tcpip.FullAddress, tcpip.Error) { - return tcpip.FullAddress{}, &tcpip.ErrNotSupported{} -} - -// GetRemoteAddress implements tcpip.Endpoint.GetRemoteAddress. -func (*endpoint) GetRemoteAddress() (tcpip.FullAddress, tcpip.Error) { - return tcpip.FullAddress{}, &tcpip.ErrNotConnected{} -} - -// Readiness implements tcpip.Endpoint.Readiness. -func (*endpoint) Readiness(waiter.EventMask) waiter.EventMask { - return 0 -} - -// SetSockOpt implements tcpip.Endpoint.SetSockOpt. -func (*endpoint) SetSockOpt(tcpip.SettableSocketOption) tcpip.Error { - return &tcpip.ErrUnknownProtocolOption{} -} - -func (*endpoint) SetSockOptInt(tcpip.SockOptInt, int) tcpip.Error { - return &tcpip.ErrUnknownProtocolOption{} -} - -// GetSockOpt implements tcpip.Endpoint.GetSockOpt. -func (*endpoint) GetSockOpt(tcpip.GettableSocketOption) tcpip.Error { - return &tcpip.ErrUnknownProtocolOption{} -} - -// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt. -func (*endpoint) GetSockOptInt(tcpip.SockOptInt) (int, tcpip.Error) { - return 0, &tcpip.ErrUnknownProtocolOption{} -} - -// HandlePacket implements stack.RawTransportEndpoint.HandlePacket. -func (*endpoint) HandlePacket(pkt *stack.PacketBuffer) { - panic(fmt.Sprintf("unreachable: noop.endpoint should never be registered, but got packet: %+v", pkt)) -} - -// State implements socket.Socket.State. -func (*endpoint) State() uint32 { - return 0 -} - -// Wait implements stack.TransportEndpoint.Wait. -func (*endpoint) Wait() { - // No-op. -} - -// Release implements stack.TransportEndpoint.Release. -func (*endpoint) Release() { - // No-op. -} - -// LastError implements tcpip.Endpoint.LastError. -func (*endpoint) LastError() tcpip.Error { - return nil -} - -// SocketOptions implements tcpip.Endpoint.SocketOptions. -func (ep *endpoint) SocketOptions() *tcpip.SocketOptions { - return &ep.ops -} - -// Info implements tcpip.Endpoint.Info. -func (*endpoint) Info() tcpip.EndpointInfo { - return &stack.TransportEndpointInfo{} -} - -// Stats returns a pointer to the endpoint stats. -func (*endpoint) Stats() tcpip.EndpointStats { - return &tcpip.TransportEndpointStats{} -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/internal/noop/noop_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/internal/noop/noop_state_autogen.go deleted file mode 100644 index ac5a86119e..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/internal/noop/noop_state_autogen.go +++ /dev/null @@ -1,41 +0,0 @@ -// automatically generated by stateify. - -package noop - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (ep *endpoint) StateTypeName() string { - return "pkg/tcpip/transport/internal/noop.endpoint" -} - -func (ep *endpoint) StateFields() []string { - return []string{ - "DefaultSocketOptionsHandler", - "ops", - } -} - -func (ep *endpoint) beforeSave() {} - -// +checklocksignore -func (ep *endpoint) StateSave(stateSinkObject state.Sink) { - ep.beforeSave() - stateSinkObject.Save(0, &ep.DefaultSocketOptionsHandler) - stateSinkObject.Save(1, &ep.ops) -} - -func (ep *endpoint) afterLoad(context.Context) {} - -// +checklocksignore -func (ep *endpoint) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &ep.DefaultSocketOptionsHandler) - stateSourceObject.Load(1, &ep.ops) -} - -func init() { - state.Register((*endpoint)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/packet/endpoint.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/packet/endpoint.go deleted file mode 100644 index 9166bca6cc..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/packet/endpoint.go +++ /dev/null @@ -1,499 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package packet provides the implementation of packet sockets (see -// packet(7)). Packet sockets allow applications to: -// -// - manually write and inspect link, network, and transport headers -// - receive all traffic of a given network protocol, or all protocols -// -// Packet sockets are similar to raw sockets, but provide even more power to -// users, letting them effectively talk directly to the network device. -// -// Packet sockets skip the input and output iptables chains. -package packet - -import ( - "io" - "time" - - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/waiter" -) - -// +stateify savable -type packet struct { - packetEntry - // data holds the actual packet data, including any headers and payload. - data *stack.PacketBuffer - receivedAt time.Time `state:".(int64)"` - // senderAddr is the network address of the sender. - senderAddr tcpip.FullAddress - // packetInfo holds additional information like the protocol - // of the packet etc. - packetInfo tcpip.LinkPacketInfo -} - -// endpoint is the packet socket implementation of tcpip.Endpoint. It is legal -// to have goroutines make concurrent calls into the endpoint. -// -// Lock order: -// -// endpoint.mu -// endpoint.rcvMu -// -// +stateify savable -type endpoint struct { - tcpip.DefaultSocketOptionsHandler - - // The following fields are initialized at creation time and are - // immutable. - stack *stack.Stack `state:"manual"` - waiterQueue *waiter.Queue - cooked bool - ops tcpip.SocketOptions - stats tcpip.TransportEndpointStats - - // The following fields are used to manage the receive queue. - rcvMu sync.Mutex `state:"nosave"` - // +checklocks:rcvMu - rcvList packetList - // +checklocks:rcvMu - rcvBufSize int - // +checklocks:rcvMu - rcvClosed bool - // +checklocks:rcvMu - rcvDisabled bool - - mu sync.RWMutex `state:"nosave"` - // +checklocks:mu - closed bool - // +checklocks:mu - boundNetProto tcpip.NetworkProtocolNumber - // +checklocks:mu - boundNIC tcpip.NICID - - lastErrorMu sync.Mutex `state:"nosave"` - // +checklocks:lastErrorMu - lastError tcpip.Error -} - -// NewEndpoint returns a new packet endpoint. -func NewEndpoint(s *stack.Stack, cooked bool, netProto tcpip.NetworkProtocolNumber, waiterQueue *waiter.Queue) tcpip.Endpoint { - ep := &endpoint{ - stack: s, - cooked: cooked, - boundNetProto: netProto, - waiterQueue: waiterQueue, - } - ep.ops.InitHandler(ep, ep.stack, tcpip.GetStackSendBufferLimits, tcpip.GetStackReceiveBufferLimits) - ep.ops.SetReceiveBufferSize(32*1024, false /* notify */) - - // Override with stack defaults. - var ss tcpip.SendBufferSizeOption - if err := s.Option(&ss); err == nil { - ep.ops.SetSendBufferSize(int64(ss.Default), false /* notify */) - } - - var rs tcpip.ReceiveBufferSizeOption - if err := s.Option(&rs); err == nil { - ep.ops.SetReceiveBufferSize(int64(rs.Default), false /* notify */) - } - - s.RegisterPacketEndpoint(0, netProto, ep) - - return ep -} - -// Abort implements stack.TransportEndpoint.Abort. -func (ep *endpoint) Abort() { - ep.Close() -} - -// Close implements tcpip.Endpoint.Close. -func (ep *endpoint) Close() { - ep.mu.Lock() - defer ep.mu.Unlock() - - if ep.closed { - return - } - - ep.stack.UnregisterPacketEndpoint(ep.boundNIC, ep.boundNetProto, ep) - - ep.rcvMu.Lock() - defer ep.rcvMu.Unlock() - - // Clear the receive list. - ep.rcvClosed = true - ep.rcvBufSize = 0 - for !ep.rcvList.Empty() { - p := ep.rcvList.Front() - ep.rcvList.Remove(p) - p.data.DecRef() - } - - ep.closed = true - ep.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) -} - -// ModerateRecvBuf implements tcpip.Endpoint.ModerateRecvBuf. -func (*endpoint) ModerateRecvBuf(int) {} - -// Read implements tcpip.Endpoint.Read. -func (ep *endpoint) Read(dst io.Writer, opts tcpip.ReadOptions) (tcpip.ReadResult, tcpip.Error) { - ep.rcvMu.Lock() - - // If there's no data to read, return that read would block or that the - // endpoint is closed. - if ep.rcvList.Empty() { - var err tcpip.Error = &tcpip.ErrWouldBlock{} - if ep.rcvClosed { - ep.stats.ReadErrors.ReadClosed.Increment() - err = &tcpip.ErrClosedForReceive{} - } - ep.rcvMu.Unlock() - return tcpip.ReadResult{}, err - } - - packet := ep.rcvList.Front() - if !opts.Peek { - ep.rcvList.Remove(packet) - defer packet.data.DecRef() - ep.rcvBufSize -= packet.data.Size() - } - - ep.rcvMu.Unlock() - - res := tcpip.ReadResult{ - Total: packet.data.Size(), - ControlMessages: tcpip.ReceivableControlMessages{ - HasTimestamp: true, - Timestamp: packet.receivedAt, - }, - } - if opts.NeedRemoteAddr { - res.RemoteAddr = packet.senderAddr - } - if opts.NeedLinkPacketInfo { - res.LinkPacketInfo = packet.packetInfo - } - - n, err := packet.data.Data().ReadTo(dst, opts.Peek) - if n == 0 && err != nil { - return res, &tcpip.ErrBadBuffer{} - } - res.Count = n - return res, nil -} - -func (ep *endpoint) Write(p tcpip.Payloader, opts tcpip.WriteOptions) (int64, tcpip.Error) { - if !ep.stack.PacketEndpointWriteSupported() { - return 0, &tcpip.ErrNotSupported{} - } - - ep.mu.Lock() - closed := ep.closed - nicID := ep.boundNIC - proto := ep.boundNetProto - ep.mu.Unlock() - if closed { - return 0, &tcpip.ErrClosedForSend{} - } - - var remote tcpip.LinkAddress - if to := opts.To; to != nil { - remote = to.LinkAddr - - if n := to.NIC; n != 0 { - nicID = n - } - - if p := to.Port; p != 0 { - proto = tcpip.NetworkProtocolNumber(p) - } - } - - if nicID == 0 { - return 0, &tcpip.ErrInvalidOptionValue{} - } - - // Prevents giant buffer allocations. - if p.Len() > header.DatagramMaximumSize { - return 0, &tcpip.ErrMessageTooLong{} - } - - var payload buffer.Buffer - if _, err := payload.WriteFromReader(p, int64(p.Len())); err != nil { - return 0, &tcpip.ErrBadBuffer{} - } - payloadSz := payload.Size() - - if err := func() tcpip.Error { - if ep.cooked { - return ep.stack.WritePacketToRemote(nicID, remote, proto, payload) - } - return ep.stack.WriteRawPacket(nicID, proto, payload) - }(); err != nil { - return 0, err - } - return payloadSz, nil -} - -// Disconnect implements tcpip.Endpoint.Disconnect. Packet sockets cannot be -// disconnected, and this function always returns tpcip.ErrNotSupported. -func (*endpoint) Disconnect() tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -// Connect implements tcpip.Endpoint.Connect. Packet sockets cannot be -// connected, and this function always returns *tcpip.ErrNotSupported. -func (*endpoint) Connect(tcpip.FullAddress) tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -// Shutdown implements tcpip.Endpoint.Shutdown. Packet sockets cannot be used -// with Shutdown, and this function always returns *tcpip.ErrNotSupported. -func (*endpoint) Shutdown(tcpip.ShutdownFlags) tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -// Listen implements tcpip.Endpoint.Listen. Packet sockets cannot be used with -// Listen, and this function always returns *tcpip.ErrNotSupported. -func (*endpoint) Listen(int) tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -// Accept implements tcpip.Endpoint.Accept. Packet sockets cannot be used with -// Accept, and this function always returns *tcpip.ErrNotSupported. -func (*endpoint) Accept(*tcpip.FullAddress) (tcpip.Endpoint, *waiter.Queue, tcpip.Error) { - return nil, nil, &tcpip.ErrNotSupported{} -} - -// Bind implements tcpip.Endpoint.Bind. -func (ep *endpoint) Bind(addr tcpip.FullAddress) tcpip.Error { - // "By default, all packets of the specified protocol type are passed - // to a packet socket. To get packets only from a specific interface - // use bind(2) specifying an address in a struct sockaddr_ll to bind - // the packet socket to an interface. Fields used for binding are - // sll_family (should be AF_PACKET), sll_protocol, and sll_ifindex." - // - packet(7). - - ep.mu.Lock() - defer ep.mu.Unlock() - - netProto := tcpip.NetworkProtocolNumber(addr.Port) - if netProto == 0 { - // Do not allow unbinding the network protocol. - netProto = ep.boundNetProto - } - - if ep.boundNIC == addr.NIC && ep.boundNetProto == netProto { - // Already bound to the requested NIC and network protocol. - return nil - } - - // TODO(https://gvisor.dev/issue/6618): Unregister after registering the new - // binding. - ep.stack.UnregisterPacketEndpoint(ep.boundNIC, ep.boundNetProto, ep) - ep.boundNIC = 0 - ep.boundNetProto = 0 - - // Bind endpoint to receive packets from specific interface. - if err := ep.stack.RegisterPacketEndpoint(addr.NIC, netProto, ep); err != nil { - return err - } - - ep.boundNIC = addr.NIC - ep.boundNetProto = netProto - return nil -} - -// GetLocalAddress implements tcpip.Endpoint.GetLocalAddress. -func (ep *endpoint) GetLocalAddress() (tcpip.FullAddress, tcpip.Error) { - ep.mu.RLock() - defer ep.mu.RUnlock() - - return tcpip.FullAddress{ - NIC: ep.boundNIC, - Port: uint16(ep.boundNetProto), - }, nil -} - -// GetRemoteAddress implements tcpip.Endpoint.GetRemoteAddress. -func (*endpoint) GetRemoteAddress() (tcpip.FullAddress, tcpip.Error) { - // Even a connected socket doesn't return a remote address. - return tcpip.FullAddress{}, &tcpip.ErrNotConnected{} -} - -// Readiness implements tcpip.Endpoint.Readiness. -func (ep *endpoint) Readiness(mask waiter.EventMask) waiter.EventMask { - // The endpoint is always writable. - result := waiter.WritableEvents & mask - - // Determine whether the endpoint is readable. - if (mask & waiter.ReadableEvents) != 0 { - ep.rcvMu.Lock() - if !ep.rcvList.Empty() || ep.rcvClosed { - result |= waiter.ReadableEvents - } - ep.rcvMu.Unlock() - } - - return result -} - -// SetSockOpt implements tcpip.Endpoint.SetSockOpt. Packet sockets cannot be -// used with SetSockOpt, and this function always returns -// *tcpip.ErrNotSupported. -func (ep *endpoint) SetSockOpt(opt tcpip.SettableSocketOption) tcpip.Error { - switch opt.(type) { - case *tcpip.SocketDetachFilterOption: - return nil - - default: - return &tcpip.ErrUnknownProtocolOption{} - } -} - -// SetSockOptInt implements tcpip.Endpoint.SetSockOptInt. -func (*endpoint) SetSockOptInt(tcpip.SockOptInt, int) tcpip.Error { - return &tcpip.ErrUnknownProtocolOption{} -} - -func (ep *endpoint) LastError() tcpip.Error { - ep.lastErrorMu.Lock() - defer ep.lastErrorMu.Unlock() - - err := ep.lastError - ep.lastError = nil - return err -} - -// UpdateLastError implements tcpip.SocketOptionsHandler.UpdateLastError. -func (ep *endpoint) UpdateLastError(err tcpip.Error) { - ep.lastErrorMu.Lock() - ep.lastError = err - ep.lastErrorMu.Unlock() -} - -// GetSockOpt implements tcpip.Endpoint.GetSockOpt. -func (*endpoint) GetSockOpt(tcpip.GettableSocketOption) tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt. -func (ep *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, tcpip.Error) { - switch opt { - case tcpip.ReceiveQueueSizeOption: - v := 0 - ep.rcvMu.Lock() - if !ep.rcvList.Empty() { - p := ep.rcvList.Front() - v = p.data.Size() - } - ep.rcvMu.Unlock() - return v, nil - - default: - return -1, &tcpip.ErrUnknownProtocolOption{} - } -} - -// HandlePacket implements stack.PacketEndpoint.HandlePacket. -func (ep *endpoint) HandlePacket(nicID tcpip.NICID, netProto tcpip.NetworkProtocolNumber, pkt *stack.PacketBuffer) { - ep.rcvMu.Lock() - - // Drop the packet if our buffer is currently full. - if ep.rcvClosed { - ep.rcvMu.Unlock() - ep.stack.Stats().DroppedPackets.Increment() - ep.stats.ReceiveErrors.ClosedReceiver.Increment() - return - } - - rcvBufSize := ep.ops.GetReceiveBufferSize() - if ep.rcvDisabled || ep.rcvBufSize >= int(rcvBufSize) { - ep.rcvMu.Unlock() - ep.stack.Stats().DroppedPackets.Increment() - ep.stats.ReceiveErrors.ReceiveBufferOverflow.Increment() - return - } - - wasEmpty := ep.rcvBufSize == 0 - - rcvdPkt := packet{ - packetInfo: tcpip.LinkPacketInfo{ - Protocol: netProto, - PktType: pkt.PktType, - }, - senderAddr: tcpip.FullAddress{ - NIC: nicID, - }, - receivedAt: ep.stack.Clock().Now(), - } - - if len(pkt.LinkHeader().Slice()) != 0 { - hdr := header.Ethernet(pkt.LinkHeader().Slice()) - rcvdPkt.senderAddr.LinkAddr = hdr.SourceAddress() - } - - // Raw packet endpoints include link-headers in received packets. - pktBuf := pkt.ToBuffer() - if ep.cooked { - // Cooked packet endpoints don't include the link-headers in received - // packets. - pktBuf.TrimFront(int64(len(pkt.LinkHeader().Slice()) + len(pkt.VirtioNetHeader().Slice()))) - } - rcvdPkt.data = stack.NewPacketBuffer(stack.PacketBufferOptions{Payload: pktBuf}) - - ep.rcvList.PushBack(&rcvdPkt) - ep.rcvBufSize += rcvdPkt.data.Size() - - ep.rcvMu.Unlock() - ep.stats.PacketsReceived.Increment() - // Notify waiters that there's data to be read. - if wasEmpty { - ep.waiterQueue.Notify(waiter.ReadableEvents) - } -} - -// State implements socket.Socket.State. -func (*endpoint) State() uint32 { - return 0 -} - -// Info returns a copy of the endpoint info. -func (ep *endpoint) Info() tcpip.EndpointInfo { - ep.mu.RLock() - defer ep.mu.RUnlock() - return &stack.TransportEndpointInfo{NetProto: ep.boundNetProto} -} - -// Stats returns a pointer to the endpoint stats. -func (ep *endpoint) Stats() tcpip.EndpointStats { - return &ep.stats -} - -// SetOwner implements tcpip.Endpoint.SetOwner. -func (*endpoint) SetOwner(tcpip.PacketOwner) {} - -// SocketOptions implements tcpip.Endpoint.SocketOptions. -func (ep *endpoint) SocketOptions() *tcpip.SocketOptions { - return &ep.ops -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/packet/endpoint_state.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/packet/endpoint_state.go deleted file mode 100644 index 16be7d6b3a..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/packet/endpoint_state.go +++ /dev/null @@ -1,66 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package packet - -import ( - "context" - "fmt" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -// saveReceivedAt is invoked by stateify. -func (p *packet) saveReceivedAt() int64 { - return p.receivedAt.UnixNano() -} - -// loadReceivedAt is invoked by stateify. -func (p *packet) loadReceivedAt(_ context.Context, nsec int64) { - p.receivedAt = time.Unix(0, nsec) -} - -// beforeSave is invoked by stateify. -func (ep *endpoint) beforeSave() { - ep.rcvMu.Lock() - defer ep.rcvMu.Unlock() - ep.rcvDisabled = true - ep.stack.RegisterResumableEndpoint(ep) -} - -// afterLoad is invoked by stateify. -func (ep *endpoint) afterLoad(ctx context.Context) { - ep.mu.Lock() - defer ep.mu.Unlock() - - ep.stack = stack.RestoreStackFromContext(ctx) - ep.ops.InitHandler(ep, ep.stack, tcpip.GetStackSendBufferLimits, tcpip.GetStackReceiveBufferLimits) - - if err := ep.stack.RegisterPacketEndpoint(ep.boundNIC, ep.boundNetProto, ep); err != nil { - panic(fmt.Sprintf("RegisterPacketEndpoint(%d, %d, _): %s", ep.boundNIC, ep.boundNetProto, err)) - } - - ep.rcvMu.Lock() - ep.rcvDisabled = false - ep.rcvMu.Unlock() -} - -// Resume implements tcpip.ResumableEndpoint.Resume. -func (ep *endpoint) Resume() { - ep.rcvMu.Lock() - defer ep.rcvMu.Unlock() - ep.rcvDisabled = false -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/packet/packet_list.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/packet/packet_list.go deleted file mode 100644 index 74bed447c7..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/packet/packet_list.go +++ /dev/null @@ -1,239 +0,0 @@ -package packet - -// ElementMapper provides an identity mapping by default. -// -// This can be replaced to provide a struct that maps elements to linker -// objects, if they are not the same. An ElementMapper is not typically -// required if: Linker is left as is, Element is left as is, or Linker and -// Element are the same type. -type packetElementMapper struct{} - -// linkerFor maps an Element to a Linker. -// -// This default implementation should be inlined. -// -//go:nosplit -func (packetElementMapper) linkerFor(elem *packet) *packet { return elem } - -// List is an intrusive list. Entries can be added to or removed from the list -// in O(1) time and with no additional memory allocations. -// -// The zero value for List is an empty list ready to use. -// -// To iterate over a list (where l is a List): -// -// for e := l.Front(); e != nil; e = e.Next() { -// // do something with e. -// } -// -// +stateify savable -type packetList struct { - head *packet - tail *packet -} - -// Reset resets list l to the empty state. -func (l *packetList) Reset() { - l.head = nil - l.tail = nil -} - -// Empty returns true iff the list is empty. -// -//go:nosplit -func (l *packetList) Empty() bool { - return l.head == nil -} - -// Front returns the first element of list l or nil. -// -//go:nosplit -func (l *packetList) Front() *packet { - return l.head -} - -// Back returns the last element of list l or nil. -// -//go:nosplit -func (l *packetList) Back() *packet { - return l.tail -} - -// Len returns the number of elements in the list. -// -// NOTE: This is an O(n) operation. -// -//go:nosplit -func (l *packetList) Len() (count int) { - for e := l.Front(); e != nil; e = (packetElementMapper{}.linkerFor(e)).Next() { - count++ - } - return count -} - -// PushFront inserts the element e at the front of list l. -// -//go:nosplit -func (l *packetList) PushFront(e *packet) { - linker := packetElementMapper{}.linkerFor(e) - linker.SetNext(l.head) - linker.SetPrev(nil) - if l.head != nil { - packetElementMapper{}.linkerFor(l.head).SetPrev(e) - } else { - l.tail = e - } - - l.head = e -} - -// PushFrontList inserts list m at the start of list l, emptying m. -// -//go:nosplit -func (l *packetList) PushFrontList(m *packetList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - packetElementMapper{}.linkerFor(l.head).SetPrev(m.tail) - packetElementMapper{}.linkerFor(m.tail).SetNext(l.head) - - l.head = m.head - } - m.head = nil - m.tail = nil -} - -// PushBack inserts the element e at the back of list l. -// -//go:nosplit -func (l *packetList) PushBack(e *packet) { - linker := packetElementMapper{}.linkerFor(e) - linker.SetNext(nil) - linker.SetPrev(l.tail) - if l.tail != nil { - packetElementMapper{}.linkerFor(l.tail).SetNext(e) - } else { - l.head = e - } - - l.tail = e -} - -// PushBackList inserts list m at the end of list l, emptying m. -// -//go:nosplit -func (l *packetList) PushBackList(m *packetList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - packetElementMapper{}.linkerFor(l.tail).SetNext(m.head) - packetElementMapper{}.linkerFor(m.head).SetPrev(l.tail) - - l.tail = m.tail - } - m.head = nil - m.tail = nil -} - -// InsertAfter inserts e after b. -// -//go:nosplit -func (l *packetList) InsertAfter(b, e *packet) { - bLinker := packetElementMapper{}.linkerFor(b) - eLinker := packetElementMapper{}.linkerFor(e) - - a := bLinker.Next() - - eLinker.SetNext(a) - eLinker.SetPrev(b) - bLinker.SetNext(e) - - if a != nil { - packetElementMapper{}.linkerFor(a).SetPrev(e) - } else { - l.tail = e - } -} - -// InsertBefore inserts e before a. -// -//go:nosplit -func (l *packetList) InsertBefore(a, e *packet) { - aLinker := packetElementMapper{}.linkerFor(a) - eLinker := packetElementMapper{}.linkerFor(e) - - b := aLinker.Prev() - eLinker.SetNext(a) - eLinker.SetPrev(b) - aLinker.SetPrev(e) - - if b != nil { - packetElementMapper{}.linkerFor(b).SetNext(e) - } else { - l.head = e - } -} - -// Remove removes e from l. -// -//go:nosplit -func (l *packetList) Remove(e *packet) { - linker := packetElementMapper{}.linkerFor(e) - prev := linker.Prev() - next := linker.Next() - - if prev != nil { - packetElementMapper{}.linkerFor(prev).SetNext(next) - } else if l.head == e { - l.head = next - } - - if next != nil { - packetElementMapper{}.linkerFor(next).SetPrev(prev) - } else if l.tail == e { - l.tail = prev - } - - linker.SetNext(nil) - linker.SetPrev(nil) -} - -// Entry is a default implementation of Linker. Users can add anonymous fields -// of this type to their structs to make them automatically implement the -// methods needed by List. -// -// +stateify savable -type packetEntry struct { - next *packet - prev *packet -} - -// Next returns the entry that follows e in the list. -// -//go:nosplit -func (e *packetEntry) Next() *packet { - return e.next -} - -// Prev returns the entry that precedes e in the list. -// -//go:nosplit -func (e *packetEntry) Prev() *packet { - return e.prev -} - -// SetNext assigns 'entry' as the entry that follows e in the list. -// -//go:nosplit -func (e *packetEntry) SetNext(elem *packet) { - e.next = elem -} - -// SetPrev assigns 'entry' as the entry that precedes e in the list. -// -//go:nosplit -func (e *packetEntry) SetPrev(elem *packet) { - e.prev = elem -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/packet/packet_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/packet/packet_state_autogen.go deleted file mode 100644 index 7e2f7fda7d..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/packet/packet_state_autogen.go +++ /dev/null @@ -1,169 +0,0 @@ -// automatically generated by stateify. - -package packet - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (p *packet) StateTypeName() string { - return "pkg/tcpip/transport/packet.packet" -} - -func (p *packet) StateFields() []string { - return []string{ - "packetEntry", - "data", - "receivedAt", - "senderAddr", - "packetInfo", - } -} - -func (p *packet) beforeSave() {} - -// +checklocksignore -func (p *packet) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - var receivedAtValue int64 - receivedAtValue = p.saveReceivedAt() - stateSinkObject.SaveValue(2, receivedAtValue) - stateSinkObject.Save(0, &p.packetEntry) - stateSinkObject.Save(1, &p.data) - stateSinkObject.Save(3, &p.senderAddr) - stateSinkObject.Save(4, &p.packetInfo) -} - -func (p *packet) afterLoad(context.Context) {} - -// +checklocksignore -func (p *packet) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.packetEntry) - stateSourceObject.Load(1, &p.data) - stateSourceObject.Load(3, &p.senderAddr) - stateSourceObject.Load(4, &p.packetInfo) - stateSourceObject.LoadValue(2, new(int64), func(y any) { p.loadReceivedAt(ctx, y.(int64)) }) -} - -func (ep *endpoint) StateTypeName() string { - return "pkg/tcpip/transport/packet.endpoint" -} - -func (ep *endpoint) StateFields() []string { - return []string{ - "DefaultSocketOptionsHandler", - "waiterQueue", - "cooked", - "ops", - "stats", - "rcvList", - "rcvBufSize", - "rcvClosed", - "rcvDisabled", - "closed", - "boundNetProto", - "boundNIC", - "lastError", - } -} - -// +checklocksignore -func (ep *endpoint) StateSave(stateSinkObject state.Sink) { - ep.beforeSave() - stateSinkObject.Save(0, &ep.DefaultSocketOptionsHandler) - stateSinkObject.Save(1, &ep.waiterQueue) - stateSinkObject.Save(2, &ep.cooked) - stateSinkObject.Save(3, &ep.ops) - stateSinkObject.Save(4, &ep.stats) - stateSinkObject.Save(5, &ep.rcvList) - stateSinkObject.Save(6, &ep.rcvBufSize) - stateSinkObject.Save(7, &ep.rcvClosed) - stateSinkObject.Save(8, &ep.rcvDisabled) - stateSinkObject.Save(9, &ep.closed) - stateSinkObject.Save(10, &ep.boundNetProto) - stateSinkObject.Save(11, &ep.boundNIC) - stateSinkObject.Save(12, &ep.lastError) -} - -// +checklocksignore -func (ep *endpoint) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &ep.DefaultSocketOptionsHandler) - stateSourceObject.Load(1, &ep.waiterQueue) - stateSourceObject.Load(2, &ep.cooked) - stateSourceObject.Load(3, &ep.ops) - stateSourceObject.Load(4, &ep.stats) - stateSourceObject.Load(5, &ep.rcvList) - stateSourceObject.Load(6, &ep.rcvBufSize) - stateSourceObject.Load(7, &ep.rcvClosed) - stateSourceObject.Load(8, &ep.rcvDisabled) - stateSourceObject.Load(9, &ep.closed) - stateSourceObject.Load(10, &ep.boundNetProto) - stateSourceObject.Load(11, &ep.boundNIC) - stateSourceObject.Load(12, &ep.lastError) - stateSourceObject.AfterLoad(func() { ep.afterLoad(ctx) }) -} - -func (l *packetList) StateTypeName() string { - return "pkg/tcpip/transport/packet.packetList" -} - -func (l *packetList) StateFields() []string { - return []string{ - "head", - "tail", - } -} - -func (l *packetList) beforeSave() {} - -// +checklocksignore -func (l *packetList) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.head) - stateSinkObject.Save(1, &l.tail) -} - -func (l *packetList) afterLoad(context.Context) {} - -// +checklocksignore -func (l *packetList) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.head) - stateSourceObject.Load(1, &l.tail) -} - -func (e *packetEntry) StateTypeName() string { - return "pkg/tcpip/transport/packet.packetEntry" -} - -func (e *packetEntry) StateFields() []string { - return []string{ - "next", - "prev", - } -} - -func (e *packetEntry) beforeSave() {} - -// +checklocksignore -func (e *packetEntry) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.next) - stateSinkObject.Save(1, &e.prev) -} - -func (e *packetEntry) afterLoad(context.Context) {} - -// +checklocksignore -func (e *packetEntry) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.next) - stateSourceObject.Load(1, &e.prev) -} - -func init() { - state.Register((*packet)(nil)) - state.Register((*endpoint)(nil)) - state.Register((*packetList)(nil)) - state.Register((*packetEntry)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/raw/endpoint.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/raw/endpoint.go deleted file mode 100644 index 1eaedc1979..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/raw/endpoint.go +++ /dev/null @@ -1,776 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package raw provides the implementation of raw sockets (see raw(7)). Raw -// sockets allow applications to: -// -// - manually write and inspect transport layer headers and payloads -// - receive all traffic of a given transport protocol (e.g. ICMP or UDP) -// - optionally write and inspect network layer headers of packets -// -// Raw sockets don't have any notion of ports, and incoming packets are -// demultiplexed solely by protocol number. Thus, a raw UDP endpoint will -// receive every UDP packet received by netstack. bind(2) and connect(2) can be -// used to filter incoming packets by source and destination. -package raw - -import ( - "fmt" - "io" - "time" - - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/checksum" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport" - "gvisor.dev/gvisor/pkg/tcpip/transport/internal/network" - "gvisor.dev/gvisor/pkg/waiter" -) - -// +stateify savable -type rawPacket struct { - rawPacketEntry - // data holds the actual packet data, including any headers and - // payload. - data *stack.PacketBuffer - receivedAt time.Time `state:".(int64)"` - // senderAddr is the network address of the sender. - senderAddr tcpip.FullAddress - packetInfo tcpip.IPPacketInfo - - // tosOrTClass stores either the Type of Service for IPv4 or the Traffic Class - // for IPv6. - tosOrTClass uint8 - // ttlOrHopLimit stores either the TTL for IPv4 or the HopLimit for IPv6 - ttlOrHopLimit uint8 -} - -// endpoint is the raw socket implementation of tcpip.Endpoint. It is legal to -// have goroutines make concurrent calls into the endpoint. -// -// Lock order: -// -// endpoint.mu -// endpoint.rcvMu -// -// +stateify savable -type endpoint struct { - tcpip.DefaultSocketOptionsHandler - - // The following fields are initialized at creation time and are - // immutable. - stack *stack.Stack `state:"manual"` - transProto tcpip.TransportProtocolNumber - waiterQueue *waiter.Queue - associated bool - - net network.Endpoint - stats tcpip.TransportEndpointStats - ops tcpip.SocketOptions - - rcvMu sync.Mutex `state:"nosave"` - // +checklocks:rcvMu - rcvList rawPacketList - // +checklocks:rcvMu - rcvBufSize int - // +checklocks:rcvMu - rcvClosed bool - // +checklocks:rcvMu - rcvDisabled bool - - mu sync.RWMutex `state:"nosave"` - - // ipv6ChecksumOffset indicates the offset to populate the IPv6 checksum at. - // - // A negative value indicates no checksum should be calculated. - // - // +checklocks:mu - ipv6ChecksumOffset int - // icmp6Filter holds the filter for ICMPv6 packets. - // - // +checklocks:mu - icmpv6Filter tcpip.ICMPv6Filter -} - -// NewEndpoint returns a raw endpoint for the given protocols. -func NewEndpoint(stack *stack.Stack, netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - return newEndpoint(stack, netProto, transProto, waiterQueue, true /* associated */) -} - -func newEndpoint(s *stack.Stack, netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber, waiterQueue *waiter.Queue, associated bool) (tcpip.Endpoint, tcpip.Error) { - // Calculating the upper-layer checksum is disabled by default for raw IPv6 - // endpoints, unless the upper-layer protocol is ICMPv6. - // - // As per RFC 3542 section 3.1, - // - // The kernel will calculate and insert the ICMPv6 checksum for ICMPv6 - // raw sockets, since this checksum is mandatory. - ipv6ChecksumOffset := -1 - if netProto == header.IPv6ProtocolNumber && transProto == header.ICMPv6ProtocolNumber { - ipv6ChecksumOffset = header.ICMPv6ChecksumOffset - } - - e := &endpoint{ - stack: s, - transProto: transProto, - waiterQueue: waiterQueue, - associated: associated, - ipv6ChecksumOffset: ipv6ChecksumOffset, - } - e.ops.InitHandler(e, e.stack, tcpip.GetStackSendBufferLimits, tcpip.GetStackReceiveBufferLimits) - e.ops.SetMulticastLoop(true) - e.ops.SetHeaderIncluded(!associated) - e.ops.SetSendBufferSize(32*1024, false /* notify */) - e.ops.SetReceiveBufferSize(32*1024, false /* notify */) - e.net.Init(s, netProto, transProto, &e.ops, waiterQueue) - - // Override with stack defaults. - var ss tcpip.SendBufferSizeOption - if err := s.Option(&ss); err == nil { - e.ops.SetSendBufferSize(int64(ss.Default), false /* notify */) - } - - var rs tcpip.ReceiveBufferSizeOption - if err := s.Option(&rs); err == nil { - e.ops.SetReceiveBufferSize(int64(rs.Default), false /* notify */) - } - - // Unassociated endpoints are write-only and users call Write() with IP - // headers included. Because they're write-only, We don't need to - // register with the stack. - if !associated { - e.ops.SetReceiveBufferSize(0, false /* notify */) - e.waiterQueue = nil - return e, nil - } - - if err := e.stack.RegisterRawTransportEndpoint(netProto, e.transProto, e); err != nil { - return nil, err - } - - return e, nil -} - -// WakeupWriters implements tcpip.SocketOptionsHandler. -func (e *endpoint) WakeupWriters() { - e.net.MaybeSignalWritable() -} - -// HasNIC implements tcpip.SocketOptionsHandler. -func (e *endpoint) HasNIC(id int32) bool { - return e.stack.HasNIC(tcpip.NICID(id)) -} - -// Abort implements stack.TransportEndpoint.Abort. -func (e *endpoint) Abort() { - e.Close() -} - -// Close implements tcpip.Endpoint.Close. -func (e *endpoint) Close() { - e.mu.Lock() - defer e.mu.Unlock() - - if e.net.State() == transport.DatagramEndpointStateClosed { - return - } - - e.net.Close() - - if !e.associated { - return - } - - e.stack.UnregisterRawTransportEndpoint(e.net.NetProto(), e.transProto, e) - - e.rcvMu.Lock() - defer e.rcvMu.Unlock() - - // Clear the receive list. - e.rcvClosed = true - e.rcvBufSize = 0 - for !e.rcvList.Empty() { - p := e.rcvList.Front() - e.rcvList.Remove(p) - p.data.DecRef() - } - - e.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) -} - -// ModerateRecvBuf implements tcpip.Endpoint.ModerateRecvBuf. -func (*endpoint) ModerateRecvBuf(int) {} - -func (e *endpoint) SetOwner(owner tcpip.PacketOwner) { - e.net.SetOwner(owner) -} - -// Read implements tcpip.Endpoint.Read. -func (e *endpoint) Read(dst io.Writer, opts tcpip.ReadOptions) (tcpip.ReadResult, tcpip.Error) { - e.rcvMu.Lock() - - // If there's no data to read, return that read would block or that the - // endpoint is closed. - if e.rcvList.Empty() { - var err tcpip.Error = &tcpip.ErrWouldBlock{} - if e.rcvClosed { - e.stats.ReadErrors.ReadClosed.Increment() - err = &tcpip.ErrClosedForReceive{} - } - e.rcvMu.Unlock() - return tcpip.ReadResult{}, err - } - - pkt := e.rcvList.Front() - if !opts.Peek { - e.rcvList.Remove(pkt) - defer pkt.data.DecRef() - e.rcvBufSize -= pkt.data.Data().Size() - } - - e.rcvMu.Unlock() - - // Control Messages - // TODO(https://gvisor.dev/issue/7012): Share control message code with other - // network endpoints. - cm := tcpip.ReceivableControlMessages{ - HasTimestamp: true, - Timestamp: pkt.receivedAt, - } - switch netProto := e.net.NetProto(); netProto { - case header.IPv4ProtocolNumber: - if e.ops.GetReceiveTOS() { - cm.HasTOS = true - cm.TOS = pkt.tosOrTClass - } - if e.ops.GetReceiveTTL() { - cm.HasTTL = true - cm.TTL = pkt.ttlOrHopLimit - } - if e.ops.GetReceivePacketInfo() { - cm.HasIPPacketInfo = true - cm.PacketInfo = pkt.packetInfo - } - case header.IPv6ProtocolNumber: - if e.ops.GetReceiveTClass() { - cm.HasTClass = true - // Although TClass is an 8-bit value it's read in the CMsg as a uint32. - cm.TClass = uint32(pkt.tosOrTClass) - } - if e.ops.GetReceiveHopLimit() { - cm.HasHopLimit = true - cm.HopLimit = pkt.ttlOrHopLimit - } - if e.ops.GetIPv6ReceivePacketInfo() { - cm.HasIPv6PacketInfo = true - cm.IPv6PacketInfo = tcpip.IPv6PacketInfo{ - NIC: pkt.packetInfo.NIC, - Addr: pkt.packetInfo.DestinationAddr, - } - } - default: - panic(fmt.Sprintf("unrecognized network protocol = %d", netProto)) - } - - res := tcpip.ReadResult{ - Total: pkt.data.Data().Size(), - ControlMessages: cm, - } - if opts.NeedRemoteAddr { - res.RemoteAddr = pkt.senderAddr - } - - n, err := pkt.data.Data().ReadTo(dst, opts.Peek) - if n == 0 && err != nil { - return res, &tcpip.ErrBadBuffer{} - } - res.Count = n - return res, nil -} - -// Write implements tcpip.Endpoint.Write. -func (e *endpoint) Write(p tcpip.Payloader, opts tcpip.WriteOptions) (int64, tcpip.Error) { - netProto := e.net.NetProto() - // We can create, but not write to, unassociated IPv6 endpoints. - if !e.associated && netProto == header.IPv6ProtocolNumber { - return 0, &tcpip.ErrInvalidOptionValue{} - } - - if opts.To != nil { - // Raw sockets do not support sending to a IPv4 address on a IPv6 endpoint. - if netProto == header.IPv6ProtocolNumber && opts.To.Addr.BitLen() != header.IPv6AddressSizeBits { - return 0, &tcpip.ErrInvalidOptionValue{} - } - } - - n, err := e.write(p, opts) - switch err.(type) { - case nil: - e.stats.PacketsSent.Increment() - case *tcpip.ErrMessageTooLong, *tcpip.ErrInvalidOptionValue: - e.stats.WriteErrors.InvalidArgs.Increment() - case *tcpip.ErrClosedForSend: - e.stats.WriteErrors.WriteClosed.Increment() - case *tcpip.ErrInvalidEndpointState: - e.stats.WriteErrors.InvalidEndpointState.Increment() - case *tcpip.ErrHostUnreachable, *tcpip.ErrBroadcastDisabled, *tcpip.ErrNetworkUnreachable: - // Errors indicating any problem with IP routing of the packet. - e.stats.SendErrors.NoRoute.Increment() - default: - // For all other errors when writing to the network layer. - e.stats.SendErrors.SendToNetworkFailed.Increment() - } - return n, err -} - -func (e *endpoint) write(p tcpip.Payloader, opts tcpip.WriteOptions) (int64, tcpip.Error) { - e.mu.Lock() - ctx, err := e.net.AcquireContextForWrite(opts) - ipv6ChecksumOffset := e.ipv6ChecksumOffset - e.mu.Unlock() - if err != nil { - return 0, err - } - defer ctx.Release() - - if p.Len() > int(ctx.MTU()) { - return 0, &tcpip.ErrMessageTooLong{} - } - - // Prevents giant buffer allocations. - if p.Len() > header.DatagramMaximumSize { - return 0, &tcpip.ErrMessageTooLong{} - } - - var payload buffer.Buffer - defer payload.Release() - if _, err := payload.WriteFromReader(p, int64(p.Len())); err != nil { - return 0, &tcpip.ErrBadBuffer{} - } - payloadSz := payload.Size() - - if packetInfo := ctx.PacketInfo(); packetInfo.NetProto == header.IPv6ProtocolNumber && ipv6ChecksumOffset >= 0 { - // Make sure we can fit the checksum. - if payload.Size() < int64(ipv6ChecksumOffset+checksum.Size) { - return 0, &tcpip.ErrInvalidOptionValue{} - } - - payloadView, _ := payload.PullUp(ipv6ChecksumOffset, int(payload.Size())-ipv6ChecksumOffset) - xsum := header.PseudoHeaderChecksum(e.transProto, packetInfo.LocalAddress, packetInfo.RemoteAddress, uint16(payload.Size())) - checksum.Put(payloadView.AsSlice(), 0) - xsum = checksum.Combine(payload.Checksum(0), xsum) - checksum.Put(payloadView.AsSlice(), ^xsum) - } - - pkt := ctx.TryNewPacketBuffer(int(ctx.PacketInfo().MaxHeaderLength), payload.Clone()) - if pkt == nil { - return 0, &tcpip.ErrWouldBlock{} - } - defer pkt.DecRef() - - if err := ctx.WritePacket(pkt, e.ops.GetHeaderIncluded()); err != nil { - return 0, err - } - - return payloadSz, nil -} - -// Disconnect implements tcpip.Endpoint.Disconnect. -func (*endpoint) Disconnect() tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -// Connect implements tcpip.Endpoint.Connect. -func (e *endpoint) Connect(addr tcpip.FullAddress) tcpip.Error { - netProto := e.net.NetProto() - - // Raw sockets do not support connecting to a IPv4 address on a IPv6 endpoint. - if netProto == header.IPv6ProtocolNumber && addr.Addr.BitLen() != header.IPv6AddressSizeBits { - return &tcpip.ErrAddressFamilyNotSupported{} - } - - return e.net.ConnectAndThen(addr, func(_ tcpip.NetworkProtocolNumber, _, _ stack.TransportEndpointID) tcpip.Error { - if e.associated { - // Re-register the endpoint with the appropriate NIC. - if err := e.stack.RegisterRawTransportEndpoint(netProto, e.transProto, e); err != nil { - return err - } - e.stack.UnregisterRawTransportEndpoint(netProto, e.transProto, e) - } - - return nil - }) -} - -// Shutdown implements tcpip.Endpoint.Shutdown. It's a noop for raw sockets. -func (e *endpoint) Shutdown(tcpip.ShutdownFlags) tcpip.Error { - if e.net.State() != transport.DatagramEndpointStateConnected { - return &tcpip.ErrNotConnected{} - } - return nil -} - -// Listen implements tcpip.Endpoint.Listen. -func (*endpoint) Listen(int) tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -// Accept implements tcpip.Endpoint.Accept. -func (*endpoint) Accept(*tcpip.FullAddress) (tcpip.Endpoint, *waiter.Queue, tcpip.Error) { - return nil, nil, &tcpip.ErrNotSupported{} -} - -// Bind implements tcpip.Endpoint.Bind. -func (e *endpoint) Bind(addr tcpip.FullAddress) tcpip.Error { - return e.net.BindAndThen(addr, func(netProto tcpip.NetworkProtocolNumber, _ tcpip.Address) tcpip.Error { - if !e.associated { - return nil - } - - // Re-register the endpoint with the appropriate NIC. - if err := e.stack.RegisterRawTransportEndpoint(netProto, e.transProto, e); err != nil { - return err - } - e.stack.UnregisterRawTransportEndpoint(netProto, e.transProto, e) - return nil - }) -} - -// GetLocalAddress implements tcpip.Endpoint.GetLocalAddress. -func (e *endpoint) GetLocalAddress() (tcpip.FullAddress, tcpip.Error) { - a := e.net.GetLocalAddress() - // Linux returns the protocol in the port field. - a.Port = uint16(e.transProto) - return a, nil -} - -// GetRemoteAddress implements tcpip.Endpoint.GetRemoteAddress. -func (*endpoint) GetRemoteAddress() (tcpip.FullAddress, tcpip.Error) { - // Even a connected socket doesn't return a remote address. - return tcpip.FullAddress{}, &tcpip.ErrNotConnected{} -} - -// Readiness implements tcpip.Endpoint.Readiness. -func (e *endpoint) Readiness(mask waiter.EventMask) waiter.EventMask { - var result waiter.EventMask - - if e.net.HasSendSpace() { - result |= waiter.WritableEvents & mask - } - - // Determine whether the endpoint is readable. - if (mask & waiter.ReadableEvents) != 0 { - e.rcvMu.Lock() - if !e.rcvList.Empty() || e.rcvClosed { - result |= waiter.ReadableEvents - } - e.rcvMu.Unlock() - } - - return result -} - -// SetSockOpt implements tcpip.Endpoint.SetSockOpt. -func (e *endpoint) SetSockOpt(opt tcpip.SettableSocketOption) tcpip.Error { - switch opt := opt.(type) { - case *tcpip.SocketDetachFilterOption: - return nil - - case *tcpip.ICMPv6Filter: - if e.net.NetProto() != header.IPv6ProtocolNumber { - return &tcpip.ErrUnknownProtocolOption{} - } - - if e.transProto != header.ICMPv6ProtocolNumber { - return &tcpip.ErrInvalidOptionValue{} - } - - e.mu.Lock() - defer e.mu.Unlock() - e.icmpv6Filter = *opt - return nil - default: - return e.net.SetSockOpt(opt) - } -} - -func (e *endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) tcpip.Error { - switch opt { - case tcpip.IPv6Checksum: - if e.net.NetProto() != header.IPv6ProtocolNumber { - return &tcpip.ErrUnknownProtocolOption{} - } - - if e.transProto == header.ICMPv6ProtocolNumber { - // As per RFC 3542 section 3.1, - // - // An attempt to set IPV6_CHECKSUM for an ICMPv6 socket will fail. - return &tcpip.ErrInvalidOptionValue{} - } - - // Make sure the offset is aligned properly if checksum is requested. - if v > 0 && v%checksum.Size != 0 { - return &tcpip.ErrInvalidOptionValue{} - } - - e.mu.Lock() - defer e.mu.Unlock() - e.ipv6ChecksumOffset = v - return nil - default: - return e.net.SetSockOptInt(opt, v) - } -} - -// GetSockOpt implements tcpip.Endpoint.GetSockOpt. -func (e *endpoint) GetSockOpt(opt tcpip.GettableSocketOption) tcpip.Error { - switch opt := opt.(type) { - case *tcpip.ICMPv6Filter: - if e.net.NetProto() != header.IPv6ProtocolNumber { - return &tcpip.ErrUnknownProtocolOption{} - } - - if e.transProto != header.ICMPv6ProtocolNumber { - return &tcpip.ErrInvalidOptionValue{} - } - - e.mu.RLock() - defer e.mu.RUnlock() - *opt = e.icmpv6Filter - return nil - - default: - return e.net.GetSockOpt(opt) - } -} - -// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt. -func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, tcpip.Error) { - switch opt { - case tcpip.ReceiveQueueSizeOption: - v := 0 - e.rcvMu.Lock() - if !e.rcvList.Empty() { - p := e.rcvList.Front() - v = p.data.Data().Size() - } - e.rcvMu.Unlock() - return v, nil - - case tcpip.IPv6Checksum: - if e.net.NetProto() != header.IPv6ProtocolNumber { - return 0, &tcpip.ErrUnknownProtocolOption{} - } - - e.mu.Lock() - defer e.mu.Unlock() - return e.ipv6ChecksumOffset, nil - - default: - return e.net.GetSockOptInt(opt) - } -} - -// HandlePacket implements stack.RawTransportEndpoint.HandlePacket. -func (e *endpoint) HandlePacket(pkt *stack.PacketBuffer) { - notifyReadableEvents := func() bool { - e.mu.RLock() - defer e.mu.RUnlock() - e.rcvMu.Lock() - defer e.rcvMu.Unlock() - - // Drop the packet if our buffer is currently full or if this is an unassociated - // endpoint (i.e endpoint created w/ IPPROTO_RAW). Such endpoints are send only - // See: https://man7.org/linux/man-pages/man7/raw.7.html - // - // An IPPROTO_RAW socket is send only. If you really want to receive - // all IP packets, use a packet(7) socket with the ETH_P_IP protocol. - // Note that packet sockets don't reassemble IP fragments, unlike raw - // sockets. - if e.rcvClosed || !e.associated { - e.stack.Stats().DroppedPackets.Increment() - e.stats.ReceiveErrors.ClosedReceiver.Increment() - return false - } - - rcvBufSize := e.ops.GetReceiveBufferSize() - if e.rcvDisabled || e.rcvBufSize >= int(rcvBufSize) { - e.stack.Stats().DroppedPackets.Increment() - e.stats.ReceiveErrors.ReceiveBufferOverflow.Increment() - return false - } - - net := pkt.Network() - dstAddr := net.DestinationAddress() - srcAddr := net.SourceAddress() - info := e.net.Info() - - switch state := e.net.State(); state { - case transport.DatagramEndpointStateInitial: - case transport.DatagramEndpointStateConnected: - // If connected, only accept packets from the remote address we - // connected to. - if info.ID.RemoteAddress != srcAddr { - return false - } - - // Connected sockets may also have been bound to a specific - // address/NIC. - fallthrough - case transport.DatagramEndpointStateBound: - // If bound to a NIC, only accept data for that NIC. - if info.BindNICID != 0 && info.BindNICID != pkt.NICID { - return false - } - - // If bound to an address, only accept data for that address. - if info.BindAddr != (tcpip.Address{}) && info.BindAddr != dstAddr { - return false - } - default: - panic(fmt.Sprintf("unhandled state = %s", state)) - } - - wasEmpty := e.rcvBufSize == 0 - - // Push new packet into receive list and increment the buffer size. - packet := &rawPacket{ - senderAddr: tcpip.FullAddress{ - NIC: pkt.NICID, - Addr: srcAddr, - }, - packetInfo: tcpip.IPPacketInfo{ - // TODO(gvisor.dev/issue/3556): dstAddr may be a multicast or broadcast - // address. LocalAddr should hold a unicast address that can be - // used to respond to the incoming packet. - LocalAddr: dstAddr, - DestinationAddr: dstAddr, - NIC: pkt.NICID, - }, - } - - // Save any useful information from the network header to the packet. - packet.tosOrTClass, _ = pkt.Network().TOS() - switch pkt.NetworkProtocolNumber { - case header.IPv4ProtocolNumber: - packet.ttlOrHopLimit = header.IPv4(pkt.NetworkHeader().Slice()).TTL() - case header.IPv6ProtocolNumber: - packet.ttlOrHopLimit = header.IPv6(pkt.NetworkHeader().Slice()).HopLimit() - } - - // Raw IPv4 endpoints return the IP header, but IPv6 endpoints do not. - // We copy headers' underlying bytes because pkt.*Header may point to - // the middle of a slice, and another struct may point to the "outer" - // slice. Save/restore doesn't support overlapping slices and will fail. - // - // TODO(https://gvisor.dev/issue/6517): Avoid the copy once S/R supports - // overlapping slices. - transportHeader := pkt.TransportHeader().Slice() - var combinedBuf buffer.Buffer - defer combinedBuf.Release() - switch info.NetProto { - case header.IPv4ProtocolNumber: - networkHeader := pkt.NetworkHeader().Slice() - headers := buffer.NewView(len(networkHeader) + len(transportHeader)) - headers.Write(networkHeader) - headers.Write(transportHeader) - combinedBuf = buffer.MakeWithView(headers) - pktBuf := pkt.Data().ToBuffer() - combinedBuf.Merge(&pktBuf) - case header.IPv6ProtocolNumber: - if e.transProto == header.ICMPv6ProtocolNumber { - if len(transportHeader) < header.ICMPv6MinimumSize { - return false - } - - if e.icmpv6Filter.ShouldDeny(uint8(header.ICMPv6(transportHeader).Type())) { - return false - } - } - - combinedBuf = buffer.MakeWithView(pkt.TransportHeader().View()) - pktBuf := pkt.Data().ToBuffer() - combinedBuf.Merge(&pktBuf) - - if checksumOffset := e.ipv6ChecksumOffset; checksumOffset >= 0 { - bufSize := int(combinedBuf.Size()) - if bufSize < checksumOffset+checksum.Size { - // Message too small to fit checksum. - return false - } - - xsum := header.PseudoHeaderChecksum(e.transProto, srcAddr, dstAddr, uint16(bufSize)) - xsum = checksum.Combine(combinedBuf.Checksum(0), xsum) - if xsum != 0xFFFF { - // Invalid checksum. - return false - } - } - default: - panic(fmt.Sprintf("unrecognized protocol number = %d", info.NetProto)) - } - - packet.data = stack.NewPacketBuffer(stack.PacketBufferOptions{Payload: combinedBuf.Clone()}) - packet.receivedAt = e.stack.Clock().Now() - - e.rcvList.PushBack(packet) - e.rcvBufSize += packet.data.Data().Size() - e.stats.PacketsReceived.Increment() - - // Notify waiters that there is data to be read now. - return wasEmpty - }() - - if notifyReadableEvents { - e.waiterQueue.Notify(waiter.ReadableEvents) - } -} - -// State implements socket.Socket.State. -func (e *endpoint) State() uint32 { - return uint32(e.net.State()) -} - -// Info returns a copy of the endpoint info. -func (e *endpoint) Info() tcpip.EndpointInfo { - ret := e.net.Info() - return &ret -} - -// Stats returns a pointer to the endpoint stats. -func (e *endpoint) Stats() tcpip.EndpointStats { - return &e.stats -} - -// Wait implements stack.TransportEndpoint.Wait. -func (*endpoint) Wait() {} - -// LastError implements tcpip.Endpoint.LastError. -func (*endpoint) LastError() tcpip.Error { - return nil -} - -// SocketOptions implements tcpip.Endpoint.SocketOptions. -func (e *endpoint) SocketOptions() *tcpip.SocketOptions { - return &e.ops -} - -func (e *endpoint) setReceiveDisabled(v bool) { - e.rcvMu.Lock() - defer e.rcvMu.Unlock() - e.rcvDisabled = v -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/raw/endpoint_state.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/raw/endpoint_state.go deleted file mode 100644 index d915ade2e1..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/raw/endpoint_state.go +++ /dev/null @@ -1,66 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package raw - -import ( - "context" - "fmt" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -// saveReceivedAt is invoked by stateify. -func (p *rawPacket) saveReceivedAt() int64 { - return p.receivedAt.UnixNano() -} - -// loadReceivedAt is invoked by stateify. -func (p *rawPacket) loadReceivedAt(_ context.Context, nsec int64) { - p.receivedAt = time.Unix(0, nsec) -} - -// afterLoad is invoked by stateify. -func (e *endpoint) afterLoad(ctx context.Context) { - stack.RestoreStackFromContext(ctx).RegisterRestoredEndpoint(e) -} - -// beforeSave is invoked by stateify. -func (e *endpoint) beforeSave() { - e.setReceiveDisabled(true) - e.stack.RegisterResumableEndpoint(e) -} - -// Restore implements tcpip.RestoredEndpoint.Restore. -func (e *endpoint) Restore(s *stack.Stack) { - e.net.Resume(s) - - e.setReceiveDisabled(false) - e.stack = s - e.ops.InitHandler(e, e.stack, tcpip.GetStackSendBufferLimits, tcpip.GetStackReceiveBufferLimits) - - if e.associated { - netProto := e.net.NetProto() - if err := e.stack.RegisterRawTransportEndpoint(netProto, e.transProto, e); err != nil { - panic(fmt.Sprintf("e.stack.RegisterRawTransportEndpoint(%d, %d, _): %s", netProto, e.transProto, err)) - } - } -} - -// Resume implements tcpip.ResumableEndpoint.Resume. -func (e *endpoint) Resume() { - e.setReceiveDisabled(false) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/raw/protocol.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/raw/protocol.go deleted file mode 100644 index 786f0896d1..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/raw/protocol.go +++ /dev/null @@ -1,55 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package raw - -import ( - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport/internal/noop" - "gvisor.dev/gvisor/pkg/tcpip/transport/packet" - "gvisor.dev/gvisor/pkg/waiter" -) - -// EndpointFactory implements stack.RawFactory. -// -// +stateify savable -type EndpointFactory struct{} - -// NewUnassociatedEndpoint implements stack.RawFactory.NewUnassociatedEndpoint. -func (EndpointFactory) NewUnassociatedEndpoint(stack *stack.Stack, netProto tcpip.NetworkProtocolNumber, transProto tcpip.TransportProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - return newEndpoint(stack, netProto, transProto, waiterQueue, false /* associated */) -} - -// NewPacketEndpoint implements stack.RawFactory.NewPacketEndpoint. -func (EndpointFactory) NewPacketEndpoint(stack *stack.Stack, cooked bool, netProto tcpip.NetworkProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - return packet.NewEndpoint(stack, cooked, netProto, waiterQueue), nil -} - -// CreateOnlyFactory implements stack.RawFactory. It allows creation of raw -// endpoints that do not support reading, writing, binding, etc. -// -// +stateify savable -type CreateOnlyFactory struct{} - -// NewUnassociatedEndpoint implements stack.RawFactory.NewUnassociatedEndpoint. -func (CreateOnlyFactory) NewUnassociatedEndpoint(stk *stack.Stack, _ tcpip.NetworkProtocolNumber, _ tcpip.TransportProtocolNumber, _ *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - return noop.New(stk), nil -} - -// NewPacketEndpoint implements stack.RawFactory.NewPacketEndpoint. -func (CreateOnlyFactory) NewPacketEndpoint(*stack.Stack, bool, tcpip.NetworkProtocolNumber, *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - // This isn't needed by anything, so it isn't implemented. - return nil, &tcpip.ErrNotPermitted{} -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/raw/raw_packet_list.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/raw/raw_packet_list.go deleted file mode 100644 index fda4702eb2..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/raw/raw_packet_list.go +++ /dev/null @@ -1,239 +0,0 @@ -package raw - -// ElementMapper provides an identity mapping by default. -// -// This can be replaced to provide a struct that maps elements to linker -// objects, if they are not the same. An ElementMapper is not typically -// required if: Linker is left as is, Element is left as is, or Linker and -// Element are the same type. -type rawPacketElementMapper struct{} - -// linkerFor maps an Element to a Linker. -// -// This default implementation should be inlined. -// -//go:nosplit -func (rawPacketElementMapper) linkerFor(elem *rawPacket) *rawPacket { return elem } - -// List is an intrusive list. Entries can be added to or removed from the list -// in O(1) time and with no additional memory allocations. -// -// The zero value for List is an empty list ready to use. -// -// To iterate over a list (where l is a List): -// -// for e := l.Front(); e != nil; e = e.Next() { -// // do something with e. -// } -// -// +stateify savable -type rawPacketList struct { - head *rawPacket - tail *rawPacket -} - -// Reset resets list l to the empty state. -func (l *rawPacketList) Reset() { - l.head = nil - l.tail = nil -} - -// Empty returns true iff the list is empty. -// -//go:nosplit -func (l *rawPacketList) Empty() bool { - return l.head == nil -} - -// Front returns the first element of list l or nil. -// -//go:nosplit -func (l *rawPacketList) Front() *rawPacket { - return l.head -} - -// Back returns the last element of list l or nil. -// -//go:nosplit -func (l *rawPacketList) Back() *rawPacket { - return l.tail -} - -// Len returns the number of elements in the list. -// -// NOTE: This is an O(n) operation. -// -//go:nosplit -func (l *rawPacketList) Len() (count int) { - for e := l.Front(); e != nil; e = (rawPacketElementMapper{}.linkerFor(e)).Next() { - count++ - } - return count -} - -// PushFront inserts the element e at the front of list l. -// -//go:nosplit -func (l *rawPacketList) PushFront(e *rawPacket) { - linker := rawPacketElementMapper{}.linkerFor(e) - linker.SetNext(l.head) - linker.SetPrev(nil) - if l.head != nil { - rawPacketElementMapper{}.linkerFor(l.head).SetPrev(e) - } else { - l.tail = e - } - - l.head = e -} - -// PushFrontList inserts list m at the start of list l, emptying m. -// -//go:nosplit -func (l *rawPacketList) PushFrontList(m *rawPacketList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - rawPacketElementMapper{}.linkerFor(l.head).SetPrev(m.tail) - rawPacketElementMapper{}.linkerFor(m.tail).SetNext(l.head) - - l.head = m.head - } - m.head = nil - m.tail = nil -} - -// PushBack inserts the element e at the back of list l. -// -//go:nosplit -func (l *rawPacketList) PushBack(e *rawPacket) { - linker := rawPacketElementMapper{}.linkerFor(e) - linker.SetNext(nil) - linker.SetPrev(l.tail) - if l.tail != nil { - rawPacketElementMapper{}.linkerFor(l.tail).SetNext(e) - } else { - l.head = e - } - - l.tail = e -} - -// PushBackList inserts list m at the end of list l, emptying m. -// -//go:nosplit -func (l *rawPacketList) PushBackList(m *rawPacketList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - rawPacketElementMapper{}.linkerFor(l.tail).SetNext(m.head) - rawPacketElementMapper{}.linkerFor(m.head).SetPrev(l.tail) - - l.tail = m.tail - } - m.head = nil - m.tail = nil -} - -// InsertAfter inserts e after b. -// -//go:nosplit -func (l *rawPacketList) InsertAfter(b, e *rawPacket) { - bLinker := rawPacketElementMapper{}.linkerFor(b) - eLinker := rawPacketElementMapper{}.linkerFor(e) - - a := bLinker.Next() - - eLinker.SetNext(a) - eLinker.SetPrev(b) - bLinker.SetNext(e) - - if a != nil { - rawPacketElementMapper{}.linkerFor(a).SetPrev(e) - } else { - l.tail = e - } -} - -// InsertBefore inserts e before a. -// -//go:nosplit -func (l *rawPacketList) InsertBefore(a, e *rawPacket) { - aLinker := rawPacketElementMapper{}.linkerFor(a) - eLinker := rawPacketElementMapper{}.linkerFor(e) - - b := aLinker.Prev() - eLinker.SetNext(a) - eLinker.SetPrev(b) - aLinker.SetPrev(e) - - if b != nil { - rawPacketElementMapper{}.linkerFor(b).SetNext(e) - } else { - l.head = e - } -} - -// Remove removes e from l. -// -//go:nosplit -func (l *rawPacketList) Remove(e *rawPacket) { - linker := rawPacketElementMapper{}.linkerFor(e) - prev := linker.Prev() - next := linker.Next() - - if prev != nil { - rawPacketElementMapper{}.linkerFor(prev).SetNext(next) - } else if l.head == e { - l.head = next - } - - if next != nil { - rawPacketElementMapper{}.linkerFor(next).SetPrev(prev) - } else if l.tail == e { - l.tail = prev - } - - linker.SetNext(nil) - linker.SetPrev(nil) -} - -// Entry is a default implementation of Linker. Users can add anonymous fields -// of this type to their structs to make them automatically implement the -// methods needed by List. -// -// +stateify savable -type rawPacketEntry struct { - next *rawPacket - prev *rawPacket -} - -// Next returns the entry that follows e in the list. -// -//go:nosplit -func (e *rawPacketEntry) Next() *rawPacket { - return e.next -} - -// Prev returns the entry that precedes e in the list. -// -//go:nosplit -func (e *rawPacketEntry) Prev() *rawPacket { - return e.prev -} - -// SetNext assigns 'entry' as the entry that follows e in the list. -// -//go:nosplit -func (e *rawPacketEntry) SetNext(elem *rawPacket) { - e.next = elem -} - -// SetPrev assigns 'entry' as the entry that precedes e in the list. -// -//go:nosplit -func (e *rawPacketEntry) SetPrev(elem *rawPacket) { - e.prev = elem -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/raw/raw_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/raw/raw_state_autogen.go deleted file mode 100644 index 0793ad18c0..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/raw/raw_state_autogen.go +++ /dev/null @@ -1,219 +0,0 @@ -// automatically generated by stateify. - -package raw - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (p *rawPacket) StateTypeName() string { - return "pkg/tcpip/transport/raw.rawPacket" -} - -func (p *rawPacket) StateFields() []string { - return []string{ - "rawPacketEntry", - "data", - "receivedAt", - "senderAddr", - "packetInfo", - "tosOrTClass", - "ttlOrHopLimit", - } -} - -func (p *rawPacket) beforeSave() {} - -// +checklocksignore -func (p *rawPacket) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - var receivedAtValue int64 - receivedAtValue = p.saveReceivedAt() - stateSinkObject.SaveValue(2, receivedAtValue) - stateSinkObject.Save(0, &p.rawPacketEntry) - stateSinkObject.Save(1, &p.data) - stateSinkObject.Save(3, &p.senderAddr) - stateSinkObject.Save(4, &p.packetInfo) - stateSinkObject.Save(5, &p.tosOrTClass) - stateSinkObject.Save(6, &p.ttlOrHopLimit) -} - -func (p *rawPacket) afterLoad(context.Context) {} - -// +checklocksignore -func (p *rawPacket) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.rawPacketEntry) - stateSourceObject.Load(1, &p.data) - stateSourceObject.Load(3, &p.senderAddr) - stateSourceObject.Load(4, &p.packetInfo) - stateSourceObject.Load(5, &p.tosOrTClass) - stateSourceObject.Load(6, &p.ttlOrHopLimit) - stateSourceObject.LoadValue(2, new(int64), func(y any) { p.loadReceivedAt(ctx, y.(int64)) }) -} - -func (e *endpoint) StateTypeName() string { - return "pkg/tcpip/transport/raw.endpoint" -} - -func (e *endpoint) StateFields() []string { - return []string{ - "DefaultSocketOptionsHandler", - "transProto", - "waiterQueue", - "associated", - "net", - "stats", - "ops", - "rcvList", - "rcvBufSize", - "rcvClosed", - "rcvDisabled", - "ipv6ChecksumOffset", - "icmpv6Filter", - } -} - -// +checklocksignore -func (e *endpoint) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.DefaultSocketOptionsHandler) - stateSinkObject.Save(1, &e.transProto) - stateSinkObject.Save(2, &e.waiterQueue) - stateSinkObject.Save(3, &e.associated) - stateSinkObject.Save(4, &e.net) - stateSinkObject.Save(5, &e.stats) - stateSinkObject.Save(6, &e.ops) - stateSinkObject.Save(7, &e.rcvList) - stateSinkObject.Save(8, &e.rcvBufSize) - stateSinkObject.Save(9, &e.rcvClosed) - stateSinkObject.Save(10, &e.rcvDisabled) - stateSinkObject.Save(11, &e.ipv6ChecksumOffset) - stateSinkObject.Save(12, &e.icmpv6Filter) -} - -// +checklocksignore -func (e *endpoint) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.DefaultSocketOptionsHandler) - stateSourceObject.Load(1, &e.transProto) - stateSourceObject.Load(2, &e.waiterQueue) - stateSourceObject.Load(3, &e.associated) - stateSourceObject.Load(4, &e.net) - stateSourceObject.Load(5, &e.stats) - stateSourceObject.Load(6, &e.ops) - stateSourceObject.Load(7, &e.rcvList) - stateSourceObject.Load(8, &e.rcvBufSize) - stateSourceObject.Load(9, &e.rcvClosed) - stateSourceObject.Load(10, &e.rcvDisabled) - stateSourceObject.Load(11, &e.ipv6ChecksumOffset) - stateSourceObject.Load(12, &e.icmpv6Filter) - stateSourceObject.AfterLoad(func() { e.afterLoad(ctx) }) -} - -func (e *EndpointFactory) StateTypeName() string { - return "pkg/tcpip/transport/raw.EndpointFactory" -} - -func (e *EndpointFactory) StateFields() []string { - return []string{} -} - -func (e *EndpointFactory) beforeSave() {} - -// +checklocksignore -func (e *EndpointFactory) StateSave(stateSinkObject state.Sink) { - e.beforeSave() -} - -func (e *EndpointFactory) afterLoad(context.Context) {} - -// +checklocksignore -func (e *EndpointFactory) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (c *CreateOnlyFactory) StateTypeName() string { - return "pkg/tcpip/transport/raw.CreateOnlyFactory" -} - -func (c *CreateOnlyFactory) StateFields() []string { - return []string{} -} - -func (c *CreateOnlyFactory) beforeSave() {} - -// +checklocksignore -func (c *CreateOnlyFactory) StateSave(stateSinkObject state.Sink) { - c.beforeSave() -} - -func (c *CreateOnlyFactory) afterLoad(context.Context) {} - -// +checklocksignore -func (c *CreateOnlyFactory) StateLoad(ctx context.Context, stateSourceObject state.Source) { -} - -func (l *rawPacketList) StateTypeName() string { - return "pkg/tcpip/transport/raw.rawPacketList" -} - -func (l *rawPacketList) StateFields() []string { - return []string{ - "head", - "tail", - } -} - -func (l *rawPacketList) beforeSave() {} - -// +checklocksignore -func (l *rawPacketList) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.head) - stateSinkObject.Save(1, &l.tail) -} - -func (l *rawPacketList) afterLoad(context.Context) {} - -// +checklocksignore -func (l *rawPacketList) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.head) - stateSourceObject.Load(1, &l.tail) -} - -func (e *rawPacketEntry) StateTypeName() string { - return "pkg/tcpip/transport/raw.rawPacketEntry" -} - -func (e *rawPacketEntry) StateFields() []string { - return []string{ - "next", - "prev", - } -} - -func (e *rawPacketEntry) beforeSave() {} - -// +checklocksignore -func (e *rawPacketEntry) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.next) - stateSinkObject.Save(1, &e.prev) -} - -func (e *rawPacketEntry) afterLoad(context.Context) {} - -// +checklocksignore -func (e *rawPacketEntry) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.next) - stateSourceObject.Load(1, &e.prev) -} - -func init() { - state.Register((*rawPacket)(nil)) - state.Register((*endpoint)(nil)) - state.Register((*EndpointFactory)(nil)) - state.Register((*CreateOnlyFactory)(nil)) - state.Register((*rawPacketList)(nil)) - state.Register((*rawPacketEntry)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/accept.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/accept.go deleted file mode 100644 index adcfdcfd52..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/accept.go +++ /dev/null @@ -1,727 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "container/list" - "crypto/sha1" - "encoding/binary" - "fmt" - "hash" - "io" - "time" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/ports" - "gvisor.dev/gvisor/pkg/tcpip/seqnum" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/waiter" -) - -const ( - // tsLen is the length, in bits, of the timestamp in the SYN cookie. - tsLen = 8 - - // tsMask is a mask for timestamp values (i.e., tsLen bits). - tsMask = (1 << tsLen) - 1 - - // tsOffset is the offset, in bits, of the timestamp in the SYN cookie. - tsOffset = 24 - - // hashMask is the mask for hash values (i.e., tsOffset bits). - hashMask = (1 << tsOffset) - 1 - - // maxTSDiff is the maximum allowed difference between a received cookie - // timestamp and the current timestamp. If the difference is greater - // than maxTSDiff, the cookie is expired. - maxTSDiff = 2 -) - -var ( - // mssTable is a slice containing the possible MSS values that we - // encode in the SYN cookie with two bits. - mssTable = []uint16{536, 1300, 1440, 1460} -) - -func encodeMSS(mss uint16) uint32 { - for i := len(mssTable) - 1; i > 0; i-- { - if mss >= mssTable[i] { - return uint32(i) - } - } - return 0 -} - -// listenContext is used by a listening endpoint to store state used while -// listening for connections. This struct is allocated by the listen goroutine -// and must not be accessed or have its methods called concurrently as they -// may mutate the stored objects. -type listenContext struct { - stack *stack.Stack - protocol *protocol - - // rcvWnd is the receive window that is sent by this listening context - // in the initial SYN-ACK. - rcvWnd seqnum.Size - - // nonce are random bytes that are initialized once when the context - // is created and used to seed the hash function when generating - // the SYN cookie. - nonce [2][sha1.BlockSize]byte - - // listenEP is a reference to the listening endpoint associated with - // this context. Can be nil if the context is created by the forwarder. - listenEP *Endpoint - - // hasherMu protects hasher. - hasherMu sync.Mutex - // hasher is the hash function used to generate a SYN cookie. - hasher hash.Hash - - // v6Only is true if listenEP is a dual stack socket and has the - // IPV6_V6ONLY option set. - v6Only bool - - // netProto indicates the network protocol(IPv4/v6) for the listening - // endpoint. - netProto tcpip.NetworkProtocolNumber -} - -// timeStamp returns an 8-bit timestamp with a granularity of 64 seconds. -func timeStamp(clock tcpip.Clock) uint32 { - return uint32(clock.NowMonotonic().Sub(tcpip.MonotonicTime{}).Seconds()) >> 6 & tsMask -} - -// newListenContext creates a new listen context. -func newListenContext(stk *stack.Stack, protocol *protocol, listenEP *Endpoint, rcvWnd seqnum.Size, v6Only bool, netProto tcpip.NetworkProtocolNumber) *listenContext { - l := &listenContext{ - stack: stk, - protocol: protocol, - rcvWnd: rcvWnd, - hasher: sha1.New(), - v6Only: v6Only, - netProto: netProto, - listenEP: listenEP, - } - - for i := range l.nonce { - if _, err := io.ReadFull(stk.SecureRNG().Reader, l.nonce[i][:]); err != nil { - panic(err) - } - } - - return l -} - -// cookieHash calculates the cookieHash for the given id, timestamp and nonce -// index. The hash is used to create and validate cookies. -func (l *listenContext) cookieHash(id stack.TransportEndpointID, ts uint32, nonceIndex int) uint32 { - - // Initialize block with fixed-size data: local ports and v. - var payload [8]byte - binary.BigEndian.PutUint16(payload[0:], id.LocalPort) - binary.BigEndian.PutUint16(payload[2:], id.RemotePort) - binary.BigEndian.PutUint32(payload[4:], ts) - - // Feed everything to the hasher. - l.hasherMu.Lock() - l.hasher.Reset() - - // Per hash.Hash.Writer: - // - // It never returns an error. - l.hasher.Write(payload[:]) - l.hasher.Write(l.nonce[nonceIndex][:]) - l.hasher.Write(id.LocalAddress.AsSlice()) - l.hasher.Write(id.RemoteAddress.AsSlice()) - - // Finalize the calculation of the hash and return the first 4 bytes. - h := l.hasher.Sum(nil) - l.hasherMu.Unlock() - - return binary.BigEndian.Uint32(h[:]) -} - -// createCookie creates a SYN cookie for the given id and incoming sequence -// number. -func (l *listenContext) createCookie(id stack.TransportEndpointID, seq seqnum.Value, data uint32) seqnum.Value { - ts := timeStamp(l.stack.Clock()) - v := l.cookieHash(id, 0, 0) + uint32(seq) + (ts << tsOffset) - v += (l.cookieHash(id, ts, 1) + data) & hashMask - return seqnum.Value(v) -} - -// isCookieValid checks if the supplied cookie is valid for the given id and -// sequence number. If it is, it also returns the data originally encoded in the -// cookie when createCookie was called. -func (l *listenContext) isCookieValid(id stack.TransportEndpointID, cookie seqnum.Value, seq seqnum.Value) (uint32, bool) { - ts := timeStamp(l.stack.Clock()) - v := uint32(cookie) - l.cookieHash(id, 0, 0) - uint32(seq) - cookieTS := v >> tsOffset - if ((ts - cookieTS) & tsMask) > maxTSDiff { - return 0, false - } - - return (v - l.cookieHash(id, cookieTS, 1)) & hashMask, true -} - -// createConnectingEndpoint creates a new endpoint in a connecting state, with -// the connection parameters given by the arguments. The newly created endpoint -// will be locked. -// +checklocksacquire:n.mu -func (l *listenContext) createConnectingEndpoint(s *segment, rcvdSynOpts header.TCPSynOptions, queue *waiter.Queue) (n *Endpoint, _ tcpip.Error) { - // Create a new endpoint. - netProto := l.netProto - if netProto == 0 { - netProto = s.pkt.NetworkProtocolNumber - } - - route, err := l.stack.FindRoute(s.pkt.NICID, s.pkt.Network().DestinationAddress(), s.pkt.Network().SourceAddress(), s.pkt.NetworkProtocolNumber, false /* multicastLoop */) - if err != nil { - return nil, err // +checklocksignore - } - - n = newEndpoint(l.stack, l.protocol, netProto, queue) - n.mu.Lock() - n.ops.SetV6Only(l.v6Only) - n.TransportEndpointInfo.ID = s.id - n.boundNICID = s.pkt.NICID - n.route = route - n.effectiveNetProtos = []tcpip.NetworkProtocolNumber{s.pkt.NetworkProtocolNumber} - n.ops.SetReceiveBufferSize(int64(l.rcvWnd), false /* notify */) - n.amss = calculateAdvertisedMSS(n.userMSS, n.route) - n.setEndpointState(StateConnecting) - - n.maybeEnableTimestamp(rcvdSynOpts) - n.maybeEnableSACKPermitted(rcvdSynOpts) - - n.initGSO() - - // Bootstrap the auto tuning algorithm. Starting at zero will result in - // a large step function on the first window adjustment causing the - // window to grow to a really large value. - initWnd := n.initialReceiveWindow() - n.rcvQueueMu.Lock() - n.RcvAutoParams.PrevCopiedBytes = initWnd - n.rcvQueueMu.Unlock() - - return n, nil -} - -// startHandshake creates a new endpoint in connecting state and then sends -// the SYN-ACK for the TCP 3-way handshake. It returns the state of the -// handshake in progress, which includes the new endpoint in the SYN-RCVD -// state. -// -// On success, a handshake h is returned. -// -// NOTE: h.ep.mu is not held and must be acquired if any state needs to be -// modified. -// -// Precondition: if l.listenEP != nil, l.listenEP.mu must be locked. -func (l *listenContext) startHandshake(s *segment, opts header.TCPSynOptions, queue *waiter.Queue, owner tcpip.PacketOwner) (h *handshake, _ tcpip.Error) { - // Create new endpoint. - irs := s.sequenceNumber - isn := generateSecureISN(s.id, l.stack.Clock(), l.protocol.seqnumSecret) - ep, err := l.createConnectingEndpoint(s, opts, queue) - if err != nil { - return nil, err // +checklocksignore - } - - ep.owner = owner - - // listenEP is nil when listenContext is used by tcp.Forwarder. - deferAccept := time.Duration(0) - if l.listenEP != nil { - if l.listenEP.EndpointState() != StateListen { - - // Ensure we release any registrations done by the newly - // created endpoint. - ep.mu.Unlock() - ep.Close() - - return nil, &tcpip.ErrConnectionAborted{} // +checklocksignore - } - - // Propagate any inheritable options from the listening endpoint - // to the newly created endpoint. - l.listenEP.propagateInheritableOptionsLocked(ep) // +checklocksforce - - if !ep.reserveTupleLocked() { - ep.mu.Unlock() - ep.Close() - - return nil, &tcpip.ErrConnectionAborted{} // +checklocksignore - } - - deferAccept = l.listenEP.deferAccept - } - - // Register new endpoint so that packets are routed to it. - if err := ep.stack.RegisterTransportEndpoint( - ep.effectiveNetProtos, - ProtocolNumber, - ep.TransportEndpointInfo.ID, - ep, - ep.boundPortFlags, - ep.boundBindToDevice, - ); err != nil { - ep.mu.Unlock() - ep.Close() - - ep.drainClosingSegmentQueue() - - return nil, err // +checklocksignore - } - - ep.isRegistered = true - - // Initialize and start the handshake. - h = ep.newPassiveHandshake(isn, irs, opts, deferAccept) - h.listenEP = l.listenEP - h.start() - h.ep.mu.Unlock() - return h, nil -} - -// performHandshake performs a TCP 3-way handshake. On success, the new -// established endpoint is returned. -// -// Precondition: if l.listenEP != nil, l.listenEP.mu must be locked. -func (l *listenContext) performHandshake(s *segment, opts header.TCPSynOptions, queue *waiter.Queue, owner tcpip.PacketOwner) (*Endpoint, tcpip.Error) { - waitEntry, notifyCh := waiter.NewChannelEntry(waiter.WritableEvents) - queue.EventRegister(&waitEntry) - defer queue.EventUnregister(&waitEntry) - - h, err := l.startHandshake(s, opts, queue, owner) - if err != nil { - return nil, err - } - - // performHandshake is used by the Forwarder which will block till the - // handshake either succeeds or fails. We do this by registering for - // events above and block on the notification channel. - <-notifyCh - - ep := h.ep - ep.mu.Lock() - if !ep.EndpointState().connected() { - ep.stack.Stats().TCP.FailedConnectionAttempts.Increment() - ep.stats.FailedConnectionAttempts.Increment() - ep.h = nil - ep.mu.Unlock() - ep.Close() - ep.notifyAborted() - ep.drainClosingSegmentQueue() - err := ep.LastError() - if err == nil { - // If err was nil then return the best error we can to indicate - // a connection failure. - err = &tcpip.ErrConnectionAborted{} - } - return nil, err - } - - ep.isConnectNotified = true - - // Transfer any state from the completed handshake to the endpoint. - // - // Update the receive window scaling. We can't do it before the - // handshake because it's possible that the peer doesn't support window - // scaling. - ep.rcv.RcvWndScale = ep.h.effectiveRcvWndScale() - - // Clean up handshake state stored in the endpoint so that it can be - // GCed. - ep.h = nil - ep.mu.Unlock() - return ep, nil -} - -// propagateInheritableOptionsLocked propagates any options set on the listening -// endpoint to the newly created endpoint. -// -// +checklocks:e.mu -// +checklocks:n.mu -func (e *Endpoint) propagateInheritableOptionsLocked(n *Endpoint) { - n.userTimeout = e.userTimeout - n.portFlags = e.portFlags - n.boundBindToDevice = e.boundBindToDevice - n.boundPortFlags = e.boundPortFlags - n.userMSS = e.userMSS -} - -// reserveTupleLocked reserves an accepted endpoint's tuple. -// -// Precondition: e.propagateInheritableOptionsLocked has been called. -// -// +checklocks:e.mu -func (e *Endpoint) reserveTupleLocked() bool { - dest := tcpip.FullAddress{ - Addr: e.TransportEndpointInfo.ID.RemoteAddress, - Port: e.TransportEndpointInfo.ID.RemotePort, - } - portRes := ports.Reservation{ - Networks: e.effectiveNetProtos, - Transport: ProtocolNumber, - Addr: e.TransportEndpointInfo.ID.LocalAddress, - Port: e.TransportEndpointInfo.ID.LocalPort, - Flags: e.boundPortFlags, - BindToDevice: e.boundBindToDevice, - Dest: dest, - } - if !e.stack.ReserveTuple(portRes) { - e.stack.Stats().TCP.FailedPortReservations.Increment() - return false - } - - e.isPortReserved = true - e.boundDest = dest - return true -} - -// notifyAborted wakes up any waiters on registered, but not accepted -// endpoints. -// -// This is strictly not required normally as a socket that was never accepted -// can't really have any registered waiters except when stack.Wait() is called -// which waits for all registered endpoints to stop and expects an EventHUp. -func (e *Endpoint) notifyAborted() { - e.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) -} - -func (e *Endpoint) acceptQueueIsFull() bool { - e.acceptMu.Lock() - full := e.acceptQueue.isFull() - e.acceptMu.Unlock() - return full -} - -// +stateify savable -type acceptQueue struct { - // NB: this could be an endpointList, but ilist only permits endpoints to - // belong to one list at a time, and endpoints are already stored in the - // dispatcher's list. - endpoints list.List `state:".([]*Endpoint)"` - - // pendingEndpoints is a set of all endpoints for which a handshake is - // in progress. - pendingEndpoints map[*Endpoint]struct{} - - // capacity is the maximum number of endpoints that can be in endpoints. - capacity int -} - -func (a *acceptQueue) isFull() bool { - return a.endpoints.Len() >= a.capacity -} - -// handleListenSegment is called when a listening endpoint receives a segment -// and needs to handle it. -// -// +checklocks:e.mu -func (e *Endpoint) handleListenSegment(ctx *listenContext, s *segment) tcpip.Error { - e.rcvQueueMu.Lock() - rcvClosed := e.RcvClosed - e.rcvQueueMu.Unlock() - if rcvClosed || s.flags.Contains(header.TCPFlagSyn|header.TCPFlagAck) { - // If the endpoint is shutdown, reply with reset. - // - // RFC 793 section 3.4 page 35 (figure 12) outlines that a RST - // must be sent in response to a SYN-ACK while in the listen - // state to prevent completing a handshake from an old SYN. - return replyWithReset(e.stack, s, e.sendTOS, e.ipv4TTL, e.ipv6HopLimit) - } - - switch { - case s.flags.Contains(header.TCPFlagRst): - e.stack.Stats().DroppedPackets.Increment() - return nil - - case s.flags.Contains(header.TCPFlagSyn): - if e.acceptQueueIsFull() { - e.stack.Stats().TCP.ListenOverflowSynDrop.Increment() - e.stats.ReceiveErrors.ListenOverflowSynDrop.Increment() - e.stack.Stats().DroppedPackets.Increment() - return nil - } - - opts := parseSynSegmentOptions(s) - - useSynCookies, err := func() (bool, tcpip.Error) { - var alwaysUseSynCookies tcpip.TCPAlwaysUseSynCookies - if err := e.stack.TransportProtocolOption(header.TCPProtocolNumber, &alwaysUseSynCookies); err != nil { - panic(fmt.Sprintf("TransportProtocolOption(%d, %T) = %s", header.TCPProtocolNumber, alwaysUseSynCookies, err)) - } - if alwaysUseSynCookies { - return true, nil - } - e.acceptMu.Lock() - defer e.acceptMu.Unlock() - - // The capacity of the accepted queue would always be one greater than the - // listen backlog. But, the SYNRCVD connections count is always checked - // against the listen backlog value for Linux parity reason. - // https://github.com/torvalds/linux/blob/7acac4b3196/include/net/inet_connection_sock.h#L280 - if len(e.acceptQueue.pendingEndpoints) == e.acceptQueue.capacity-1 { - return true, nil - } - - h, err := ctx.startHandshake(s, opts, &waiter.Queue{}, e.owner) - if err != nil { - e.stack.Stats().TCP.FailedConnectionAttempts.Increment() - e.stats.FailedConnectionAttempts.Increment() - return false, err - } - e.acceptQueue.pendingEndpoints[h.ep] = struct{}{} - - return false, nil - }() - if err != nil { - return err - } - if !useSynCookies { - return nil - } - - net := s.pkt.Network() - route, err := e.stack.FindRoute(s.pkt.NICID, net.DestinationAddress(), net.SourceAddress(), s.pkt.NetworkProtocolNumber, false /* multicastLoop */) - if err != nil { - return err - } - defer route.Release() - - // Send SYN without window scaling because we currently - // don't encode this information in the cookie. - // - // Enable Timestamp option if the original syn did have - // the timestamp option specified. - // - // Use the user supplied MSS on the listening socket for - // new connections, if available. - synOpts := header.TCPSynOptions{ - WS: -1, - TS: opts.TS, - TSEcr: opts.TSVal, - MSS: calculateAdvertisedMSS(e.userMSS, route), - } - if opts.TS { - offset := e.protocol.tsOffset(net.DestinationAddress(), net.SourceAddress()) - now := e.stack.Clock().NowMonotonic() - synOpts.TSVal = offset.TSVal(now) - } - cookie := ctx.createCookie(s.id, s.sequenceNumber, encodeMSS(opts.MSS)) - fields := tcpFields{ - id: s.id, - ttl: calculateTTL(route, e.ipv4TTL, e.ipv6HopLimit), - tos: e.sendTOS, - flags: header.TCPFlagSyn | header.TCPFlagAck, - seq: cookie, - ack: s.sequenceNumber + 1, - rcvWnd: ctx.rcvWnd, - } - if err := e.sendSynTCP(route, fields, synOpts); err != nil { - return err - } - e.stack.Stats().TCP.ListenOverflowSynCookieSent.Increment() - return nil - - case s.flags.Contains(header.TCPFlagAck): - iss := s.ackNumber - 1 - irs := s.sequenceNumber - 1 - - // As an edge case when SYN-COOKIES are in use and we receive a - // segment that has data and is valid we should check if it - // already matches a created endpoint and redirect the segment - // rather than try and create a new endpoint. This can happen - // where the final ACK for the handshake and other data packets - // arrive at the same time and are queued to the listening - // endpoint before the listening endpoint has had time to - // process the first ACK and create the endpoint that matches - // the incoming packet's full 5 tuple. - netProtos := []tcpip.NetworkProtocolNumber{s.pkt.NetworkProtocolNumber} - // If the local address is an IPv4 Address then also look for IPv6 - // dual stack endpoints. - if s.id.LocalAddress.To4() != (tcpip.Address{}) { - netProtos = []tcpip.NetworkProtocolNumber{header.IPv4ProtocolNumber, header.IPv6ProtocolNumber} - } - for _, netProto := range netProtos { - if newEP := e.stack.FindTransportEndpoint(netProto, ProtocolNumber, s.id, s.pkt.NICID); newEP != nil && newEP != e { - tcpEP := newEP.(*Endpoint) - if !tcpEP.EndpointState().connected() { - continue - } - if !tcpEP.enqueueSegment(s) { - // Just silently drop the segment as we failed - // to queue, we don't want to generate a RST - // further below or try and create a new - // endpoint etc. - return nil - } - tcpEP.notifyProcessor() - return nil - } - } - - // Since SYN cookies are in use this is potentially an ACK to a - // SYN-ACK we sent but don't have a half open connection state - // as cookies are being used to protect against a potential SYN - // flood. In such cases validate the cookie and if valid create - // a fully connected endpoint and deliver to the accept queue. - // - // If not, silently drop the ACK to avoid leaking information - // when under a potential syn flood attack. - // - // Validate the cookie. - data, ok := ctx.isCookieValid(s.id, iss, irs) - if !ok || int(data) >= len(mssTable) { - e.stack.Stats().TCP.ListenOverflowInvalidSynCookieRcvd.Increment() - e.stack.Stats().DroppedPackets.Increment() - - // When not using SYN cookies, as per RFC 793, section 3.9, page 64: - // Any acknowledgment is bad if it arrives on a connection still in - // the LISTEN state. An acceptable reset segment should be formed - // for any arriving ACK-bearing segment. The RST should be - // formatted as follows: - // - // - // - // Send a reset as this is an ACK for which there is no - // half open connections and we are not using cookies - // yet. - // - // The only time we should reach here when a connection - // was opened and closed really quickly and a delayed - // ACK was received from the sender. - return replyWithReset(e.stack, s, e.sendTOS, e.ipv4TTL, e.ipv6HopLimit) - } - - // Keep hold of acceptMu until the new endpoint is in the accept queue (or - // if there is an error), to guarantee that we will keep our spot in the - // queue even if another handshake from the syn queue completes. - e.acceptMu.Lock() - if e.acceptQueue.isFull() { - // Silently drop the ack as the application can't accept - // the connection at this point. The ack will be - // retransmitted by the sender anyway and we can - // complete the connection at the time of retransmit if - // the backlog has space. - e.acceptMu.Unlock() - e.stack.Stats().TCP.ListenOverflowAckDrop.Increment() - e.stats.ReceiveErrors.ListenOverflowAckDrop.Increment() - e.stack.Stats().DroppedPackets.Increment() - return nil - } - - e.stack.Stats().TCP.ListenOverflowSynCookieRcvd.Increment() - // Create newly accepted endpoint and deliver it. - rcvdSynOptions := header.TCPSynOptions{ - MSS: mssTable[data], - // Disable Window scaling as original SYN is - // lost. - WS: -1, - } - - // When syn cookies are in use we enable timestamp only - // if the ack specifies the timestamp option assuming - // that the other end did in fact negotiate the - // timestamp option in the original SYN. - if s.parsedOptions.TS { - rcvdSynOptions.TS = true - rcvdSynOptions.TSVal = s.parsedOptions.TSVal - rcvdSynOptions.TSEcr = s.parsedOptions.TSEcr - } - - n, err := ctx.createConnectingEndpoint(s, rcvdSynOptions, &waiter.Queue{}) - if err != nil { - e.acceptMu.Unlock() - return err - } - - // Propagate any inheritable options from the listening endpoint - // to the newly created endpoint. - e.propagateInheritableOptionsLocked(n) - - if !n.reserveTupleLocked() { - n.mu.Unlock() - e.acceptMu.Unlock() - n.Close() - - e.stack.Stats().TCP.FailedConnectionAttempts.Increment() - e.stats.FailedConnectionAttempts.Increment() - return nil - } - - // Register new endpoint so that packets are routed to it. - if err := n.stack.RegisterTransportEndpoint( - n.effectiveNetProtos, - ProtocolNumber, - n.TransportEndpointInfo.ID, - n, - n.boundPortFlags, - n.boundBindToDevice, - ); err != nil { - n.mu.Unlock() - e.acceptMu.Unlock() - n.Close() - - e.stack.Stats().TCP.FailedConnectionAttempts.Increment() - e.stats.FailedConnectionAttempts.Increment() - return err - } - - n.isRegistered = true - net := s.pkt.Network() - n.TSOffset = n.protocol.tsOffset(net.DestinationAddress(), net.SourceAddress()) - - // Switch state to connected. - n.isConnectNotified = true - h := handshake{ - ep: n, - iss: iss, - ackNum: irs + 1, - rcvWnd: seqnum.Size(n.initialReceiveWindow()), - sndWnd: s.window, - rcvWndScale: e.rcvWndScaleForHandshake(), - sndWndScale: rcvdSynOptions.WS, - mss: rcvdSynOptions.MSS, - sampleRTTWithTSOnly: true, - } - h.ep.AssertLockHeld(n) - h.transitionToStateEstablishedLocked(s) - n.mu.Unlock() - - // Requeue the segment if the ACK completing the handshake has more info - // to be processed by the newly established endpoint. - if (s.flags.Contains(header.TCPFlagFin) || s.payloadSize() > 0) && n.enqueueSegment(s) { - n.notifyProcessor() - } - - e.stack.Stats().TCP.PassiveConnectionOpenings.Increment() - - // Deliver the endpoint to the accept queue. - e.acceptQueue.endpoints.PushBack(n) - e.acceptMu.Unlock() - - e.waiterQueue.Notify(waiter.ReadableEvents) - return nil - - default: - e.stack.Stats().DroppedPackets.Increment() - return nil - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/connect.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/connect.go deleted file mode 100644 index 4125af98ca..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/connect.go +++ /dev/null @@ -1,1503 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "crypto/sha256" - "encoding/binary" - "fmt" - "math" - "time" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/checksum" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/seqnum" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/waiter" -) - -const ( - // tcpMinTimeout is the minimum timeout for a SYN retransmit. - // This mirrors the TCP_TIMEOUT_MIN variable in Linux. - // See: https://github.com/torvalds/linux/blob/249aca0d3d631660aa3583c6a3559b75b6e971b4/include/net/tcp.h#L143 - tcpMinTimeout = 2 * time.Microsecond - - // InitialRTO is the initial retransmission timeout. - // https://github.com/torvalds/linux/blob/7c636d4d20f/include/net/tcp.h#L142 - InitialRTO = time.Second - - // maxSegmentsPerWake is the maximum number of segments to process in the main - // protocol goroutine per wake-up. Yielding [after this number of segments are - // processed] allows other events to be processed as well (e.g., timeouts, - // resets, etc.). - maxSegmentsPerWake = 100 -) - -type handshakeState int - -// The following are the possible states of the TCP connection during a 3-way -// handshake. A depiction of the states and transitions can be found in RFC 793, -// page 23. -const ( - handshakeSynSent handshakeState = iota - handshakeSynRcvd - handshakeCompleted -) - -const ( - // Maximum space available for options. - maxOptionSize = 40 -) - -// handshake holds the state used during a TCP 3-way handshake. -// -// NOTE: handshake.ep.mu is held during handshake processing. It is released if -// we are going to block and reacquired when we start processing an event. -// -// +stateify savable -type handshake struct { - ep *Endpoint - listenEP *Endpoint - state handshakeState - active bool - flags header.TCPFlags - ackNum seqnum.Value - - // iss is the initial send sequence number, as defined in RFC 793. - iss seqnum.Value - - // rcvWnd is the receive window, as defined in RFC 793. - rcvWnd seqnum.Size - - // sndWnd is the send window, as defined in RFC 793. - sndWnd seqnum.Size - - // mss is the maximum segment size received from the peer. - mss uint16 - - // sndWndScale is the send window scale, as defined in RFC 1323. A - // negative value means no scaling is supported by the peer. - sndWndScale int - - // rcvWndScale is the receive window scale, as defined in RFC 1323. - rcvWndScale int - - // startTime is the time at which the first SYN/SYN-ACK was sent. - startTime tcpip.MonotonicTime - - // deferAccept if non-zero will drop the final ACK for a passive - // handshake till an ACK segment with data is received or the timeout is - // hit. - deferAccept time.Duration - - // acked is true if the final ACK for a 3-way handshake has - // been received. This is required to stop retransmitting the - // original SYN-ACK when deferAccept is enabled. - acked bool - - // sendSYNOpts is the cached values for the SYN options to be sent. - sendSYNOpts header.TCPSynOptions - - // sampleRTTWithTSOnly is true when the segment was retransmitted or we can't - // tell; then RTT can only be sampled when the incoming segment has timestamp - // options enabled. - sampleRTTWithTSOnly bool - - // retransmitTimer is used to retransmit SYN/SYN-ACK with exponential backoff - // till handshake is either completed or timesout. - retransmitTimer *backoffTimer `state:"nosave"` -} - -// timerHandler takes a handler function for a timer and returns a function that -// will invoke the provided handler with the endpoint mutex held. In addition -// the returned function will perform any cleanup that may be required if the -// timer handler returns an error. In the case of no errors it will notify the -// processor if there are pending segments that need to be processed. -// -// NOTE: e.mu is held for the duration of the call to f(). -func timerHandler(e *Endpoint, f func() tcpip.Error) func() { - return func() { - e.mu.Lock() - if err := f(); err != nil { - e.lastErrorMu.Lock() - // If the handler timed out and we have a lastError recorded (maybe due - // to an ICMP message received), promote it to be the hard error. - if _, isTimeout := err.(*tcpip.ErrTimeout); e.lastError != nil && isTimeout { - e.hardError = e.lastError - } else { - e.hardError = err - } - e.lastError = err - e.lastErrorMu.Unlock() - e.cleanupLocked() - e.setEndpointState(StateError) - e.mu.Unlock() - e.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) - return - } - processor := e.protocol.dispatcher.selectProcessor(e.ID) - e.mu.Unlock() - - // notify processor if there are pending segments to be - // processed. - if !e.segmentQueue.empty() { - processor.queueEndpoint(e) - } - } -} - -// +checklocks:e.mu -// +checklocksacquire:h.ep.mu -func (e *Endpoint) newHandshake() (h *handshake) { - h = &handshake{ - ep: e, - active: true, - rcvWnd: seqnum.Size(e.initialReceiveWindow()), - rcvWndScale: e.rcvWndScaleForHandshake(), - } - h.ep.AssertLockHeld(e) - h.resetState() - // Store reference to handshake state in endpoint. - e.h = h - // By the time handshake is created, e.ID is already initialized. - e.TSOffset = e.protocol.tsOffset(e.ID.LocalAddress, e.ID.RemoteAddress) - timer, err := newBackoffTimer(h.ep.stack.Clock(), InitialRTO, MaxRTO, timerHandler(e, h.retransmitHandlerLocked)) - if err != nil { - panic(fmt.Sprintf("newBackOffTimer(_, %s, %s, _) failed: %s", InitialRTO, MaxRTO, err)) - } - h.retransmitTimer = timer - return h -} - -// +checklocks:e.mu -// +checklocksacquire:h.ep.mu -func (e *Endpoint) newPassiveHandshake(isn, irs seqnum.Value, opts header.TCPSynOptions, deferAccept time.Duration) (h *handshake) { - h = e.newHandshake() - h.resetToSynRcvd(isn, irs, opts, deferAccept) - return h -} - -// FindWndScale determines the window scale to use for the given maximum window -// size. -func FindWndScale(wnd seqnum.Size) int { - if wnd < 0x10000 { - return 0 - } - - max := seqnum.Size(math.MaxUint16) - s := 0 - for wnd > max && s < header.MaxWndScale { - s++ - max <<= 1 - } - - return s -} - -// resetState resets the state of the handshake object such that it becomes -// ready for a new 3-way handshake. -func (h *handshake) resetState() { - h.state = handshakeSynSent - h.flags = header.TCPFlagSyn - h.ackNum = 0 - h.mss = 0 - h.iss = generateSecureISN(h.ep.TransportEndpointInfo.ID, h.ep.stack.Clock(), h.ep.protocol.seqnumSecret) -} - -// generateSecureISN generates a secure Initial Sequence number based on the -// recommendation here https://tools.ietf.org/html/rfc6528#page-3. -func generateSecureISN(id stack.TransportEndpointID, clock tcpip.Clock, seed [16]byte) seqnum.Value { - isnHasher := sha256.New() - - // Per hash.Hash.Writer: - // - // It never returns an error. - _, _ = isnHasher.Write(seed[:]) - _, _ = isnHasher.Write(id.LocalAddress.AsSlice()) - _, _ = isnHasher.Write(id.RemoteAddress.AsSlice()) - portBuf := make([]byte, 2) - binary.LittleEndian.PutUint16(portBuf, id.LocalPort) - _, _ = isnHasher.Write(portBuf) - binary.LittleEndian.PutUint16(portBuf, id.RemotePort) - _, _ = isnHasher.Write(portBuf) - // The time period here is 64ns. This is similar to what linux uses - // generate a sequence number that overlaps less than one - // time per MSL (2 minutes). - // - // A 64ns clock ticks 10^9/64 = 15625000) times in a second. - // To wrap the whole 32 bit space would require - // 2^32/1562500 ~ 274 seconds. - // - // Which sort of guarantees that we won't reuse the ISN for a new - // connection for the same tuple for at least 274s. - hash := binary.LittleEndian.Uint32(isnHasher.Sum(nil)[:4]) - isn := hash + uint32(clock.NowMonotonic().Sub(tcpip.MonotonicTime{}).Nanoseconds()>>6) - return seqnum.Value(isn) -} - -// effectiveRcvWndScale returns the effective receive window scale to be used. -// If the peer doesn't support window scaling, the effective rcv wnd scale is -// zero; otherwise it's the value calculated based on the initial rcv wnd. -func (h *handshake) effectiveRcvWndScale() uint8 { - if h.sndWndScale < 0 { - return 0 - } - return uint8(h.rcvWndScale) -} - -// resetToSynRcvd resets the state of the handshake object to the SYN-RCVD -// state. -// +checklocks:h.ep.mu -func (h *handshake) resetToSynRcvd(iss seqnum.Value, irs seqnum.Value, opts header.TCPSynOptions, deferAccept time.Duration) { - h.active = false - h.state = handshakeSynRcvd - h.flags = header.TCPFlagSyn | header.TCPFlagAck - h.iss = iss - h.ackNum = irs + 1 - h.mss = opts.MSS - h.sndWndScale = opts.WS - h.deferAccept = deferAccept - h.ep.setEndpointState(StateSynRecv) -} - -// checkAck checks if the ACK number, if present, of a segment received during -// a TCP 3-way handshake is valid. -func (h *handshake) checkAck(s *segment) bool { - return !(s.flags.Contains(header.TCPFlagAck) && s.ackNumber != h.iss+1) -} - -// synSentState handles a segment received when the TCP 3-way handshake is in -// the SYN-SENT state. -// +checklocks:h.ep.mu -func (h *handshake) synSentState(s *segment) tcpip.Error { - // RFC 793, page 37, states that in the SYN-SENT state, a reset is - // acceptable if the ack field acknowledges the SYN. - if s.flags.Contains(header.TCPFlagRst) { - if s.flags.Contains(header.TCPFlagAck) && s.ackNumber == h.iss+1 { - // RFC 793, page 67, states that "If the RST bit is set [and] If the ACK - // was acceptable then signal the user "error: connection reset", drop - // the segment, enter CLOSED state, delete TCB, and return." - // Although the RFC above calls out ECONNRESET, Linux actually returns - // ECONNREFUSED here so we do as well. - return &tcpip.ErrConnectionRefused{} - } - return nil - } - - if !h.checkAck(s) { - // RFC 793, page 72 (https://datatracker.ietf.org/doc/html/rfc793#page-72): - // If the segment acknowledgment is not acceptable, form a reset segment, - // - // and send it. - h.ep.sendEmptyRaw(header.TCPFlagRst, s.ackNumber, 0, 0) - // Since this was a challenge ACK reschedule the retransmit timer to fire - // soon so that the SYN is retransmitted quickly. - h.retransmitTimer.reinit(tcpMinTimeout) - return nil - } - - // We are in the SYN-SENT state. We only care about segments that have - // the SYN flag. - if !s.flags.Contains(header.TCPFlagSyn) { - return nil - } - - // Parse the SYN options. - rcvSynOpts := parseSynSegmentOptions(s) - - // Remember if the Timestamp option was negotiated. - h.ep.maybeEnableTimestamp(rcvSynOpts) - - // Remember if the SACKPermitted option was negotiated. - h.ep.maybeEnableSACKPermitted(rcvSynOpts) - - // Remember the sequence we'll ack from now on. - h.ackNum = s.sequenceNumber + 1 - h.flags |= header.TCPFlagAck - h.mss = rcvSynOpts.MSS - h.sndWndScale = rcvSynOpts.WS - - // If this is a SYN ACK response, we only need to acknowledge the SYN - // and the handshake is completed. - if s.flags.Contains(header.TCPFlagAck) { - h.state = handshakeCompleted - h.transitionToStateEstablishedLocked(s) - - h.ep.sendEmptyRaw(header.TCPFlagAck, h.iss+1, h.ackNum, h.rcvWnd>>h.effectiveRcvWndScale()) - return nil - } - - // A SYN segment was received, but no ACK in it. We acknowledge the SYN - // but resend our own SYN and wait for it to be acknowledged in the - // SYN-RCVD state. - h.state = handshakeSynRcvd - ttl := calculateTTL(h.ep.route, h.ep.ipv4TTL, h.ep.ipv6HopLimit) - amss := h.ep.amss - h.ep.setEndpointState(StateSynRecv) - synOpts := header.TCPSynOptions{ - WS: int(h.effectiveRcvWndScale()), - TS: rcvSynOpts.TS, - TSVal: h.ep.tsValNow(), - TSEcr: h.ep.recentTimestamp(), - - // We only send SACKPermitted if the other side indicated it - // permits SACK. This is not explicitly defined in the RFC but - // this is the behaviour implemented by Linux. - SACKPermitted: rcvSynOpts.SACKPermitted, - MSS: amss, - } - if ttl == 0 { - ttl = h.ep.route.DefaultTTL() - } - h.ep.sendSynTCP(h.ep.route, tcpFields{ - id: h.ep.TransportEndpointInfo.ID, - ttl: ttl, - tos: h.ep.sendTOS, - flags: h.flags, - seq: h.iss, - ack: h.ackNum, - rcvWnd: h.rcvWnd, - }, synOpts) - return nil -} - -// synRcvdState handles a segment received when the TCP 3-way handshake is in -// the SYN-RCVD state. -// +checklocks:h.ep.mu -func (h *handshake) synRcvdState(s *segment) tcpip.Error { - if s.flags.Contains(header.TCPFlagRst) { - // RFC 793, page 37, states that in the SYN-RCVD state, a reset - // is acceptable if the sequence number is in the window. - if s.sequenceNumber.InWindow(h.ackNum, h.rcvWnd) { - return &tcpip.ErrConnectionRefused{} - } - return nil - } - - // It's possible that s is an ACK of a SYN cookie. This can happen if: - // - // - We receive a SYN while under load and issue a SYN/ACK with - // cookie S. - // - We receive a retransmitted SYN while space exists in the SYN - // queue, and issue a SYN/ACK with seqnum S'. - // - We receive the ACK based on S. - // - // If we receive a SYN cookie ACK, just use the cookie seqnum. - if !h.checkAck(s) && h.listenEP != nil { - iss := s.ackNumber - 1 - data, ok := h.listenEP.listenCtx.isCookieValid(s.id, iss, s.sequenceNumber-1) - if !ok || int(data) >= len(mssTable) { - // This isn't a valid cookie. - // RFC 793, page 72 (https://datatracker.ietf.org/doc/html/rfc793#page-72): - // If the segment acknowledgment is not acceptable, form a reset segment, - // - // and send it. - h.ep.sendEmptyRaw(header.TCPFlagRst, s.ackNumber, 0, 0) - return nil - } - // This is a cookie that snuck its way in after we stopped using them. - h.mss = mssTable[data] - h.iss = iss - } - - // RFC 793, Section 3.9, page 69, states that in the SYN-RCVD state, a - // sequence number outside of the window causes an ACK with the proper seq - // number and "After sending the acknowledgment, drop the unacceptable - // segment and return." - if !s.sequenceNumber.InWindow(h.ackNum, h.rcvWnd) { - if h.ep.allowOutOfWindowAck() { - h.ep.sendEmptyRaw(header.TCPFlagAck, h.iss+1, h.ackNum, h.rcvWnd) - } - return nil - } - - if s.flags.Contains(header.TCPFlagSyn) && s.sequenceNumber != h.ackNum-1 { - // We received two SYN segments with different sequence - // numbers, so we reset this and restart the whole - // process, except that we don't reset the timer. - ack := s.sequenceNumber.Add(s.logicalLen()) - seq := seqnum.Value(0) - if s.flags.Contains(header.TCPFlagAck) { - seq = s.ackNumber - } - h.ep.sendEmptyRaw(header.TCPFlagRst|header.TCPFlagAck, seq, ack, 0) - - if !h.active { - return &tcpip.ErrInvalidEndpointState{} - } - - h.resetState() - synOpts := header.TCPSynOptions{ - WS: h.rcvWndScale, - TS: h.ep.SendTSOk, - TSVal: h.ep.tsValNow(), - TSEcr: h.ep.recentTimestamp(), - SACKPermitted: h.ep.SACKPermitted, - MSS: h.ep.amss, - } - h.ep.sendSynTCP(h.ep.route, tcpFields{ - id: h.ep.TransportEndpointInfo.ID, - ttl: calculateTTL(h.ep.route, h.ep.ipv4TTL, h.ep.ipv6HopLimit), - tos: h.ep.sendTOS, - flags: h.flags, - seq: h.iss, - ack: h.ackNum, - rcvWnd: h.rcvWnd, - }, synOpts) - return nil - } - - // We have previously received (and acknowledged) the peer's SYN. If the - // peer acknowledges our SYN, the handshake is completed. - if s.flags.Contains(header.TCPFlagAck) { - // If deferAccept is not zero and this is a bare ACK and the - // timeout is not hit then drop the ACK. - if h.deferAccept != 0 && s.payloadSize() == 0 && h.ep.stack.Clock().NowMonotonic().Sub(h.startTime) < h.deferAccept { - h.acked = true - h.ep.stack.Stats().DroppedPackets.Increment() - return nil - } - - // If the timestamp option is negotiated and the segment does - // not carry a timestamp option then the segment must be dropped - // as per https://tools.ietf.org/html/rfc7323#section-3.2. - if h.ep.SendTSOk && !s.parsedOptions.TS { - h.ep.stack.Stats().DroppedPackets.Increment() - return nil - } - - // Drop the ACK if the accept queue is full. - // https://github.com/torvalds/linux/blob/7acac4b3196/net/ipv4/tcp_ipv4.c#L1523 - // We could abort the connection as well with a tunable as in - // https://github.com/torvalds/linux/blob/7acac4b3196/net/ipv4/tcp_minisocks.c#L788 - if listenEP := h.listenEP; listenEP != nil && listenEP.acceptQueueIsFull() { - listenEP.stack.Stats().DroppedPackets.Increment() - return nil - } - - // Update timestamp if required. See RFC7323, section-4.3. - if h.ep.SendTSOk && s.parsedOptions.TS { - h.ep.updateRecentTimestamp(s.parsedOptions.TSVal, h.ackNum, s.sequenceNumber) - } - - h.state = handshakeCompleted - h.transitionToStateEstablishedLocked(s) - - // Requeue the segment if the ACK completing the handshake has more info - // to be processed by the newly established endpoint. - if (s.flags.Contains(header.TCPFlagFin) || s.payloadSize() > 0) && h.ep.enqueueSegment(s) { - h.ep.protocol.dispatcher.selectProcessor(h.ep.ID).queueEndpoint(h.ep) - - } - return nil - } - - return nil -} - -// +checklocks:h.ep.mu -func (h *handshake) handleSegment(s *segment) tcpip.Error { - h.sndWnd = s.window - if !s.flags.Contains(header.TCPFlagSyn) && h.sndWndScale > 0 { - h.sndWnd <<= uint8(h.sndWndScale) - } - - switch h.state { - case handshakeSynRcvd: - return h.synRcvdState(s) - case handshakeSynSent: - return h.synSentState(s) - } - return nil -} - -// processSegments goes through the segment queue and processes up to -// maxSegmentsPerWake (if they're available). -// +checklocks:h.ep.mu -func (h *handshake) processSegments() tcpip.Error { - for i := 0; i < maxSegmentsPerWake; i++ { - s := h.ep.segmentQueue.dequeue() - if s == nil { - return nil - } - - err := h.handleSegment(s) - s.DecRef() - if err != nil { - return err - } - - // We stop processing packets once the handshake is completed, - // otherwise we may process packets meant to be processed by - // the main protocol goroutine. - if h.state == handshakeCompleted { - break - } - } - - return nil -} - -// start sends the first SYN/SYN-ACK. It does not block, even if link address -// resolution is required. -func (h *handshake) start() { - h.startTime = h.ep.stack.Clock().NowMonotonic() - h.ep.amss = calculateAdvertisedMSS(h.ep.userMSS, h.ep.route) - var sackEnabled tcpip.TCPSACKEnabled - if err := h.ep.stack.TransportProtocolOption(ProtocolNumber, &sackEnabled); err != nil { - // If stack returned an error when checking for SACKEnabled - // status then just default to switching off SACK negotiation. - sackEnabled = false - } - - synOpts := header.TCPSynOptions{ - WS: h.rcvWndScale, - TS: true, - TSVal: h.ep.tsValNow(), - TSEcr: h.ep.recentTimestamp(), - SACKPermitted: bool(sackEnabled), - MSS: h.ep.amss, - } - - // start() is also called in a listen context so we want to make sure we only - // send the TS/SACK option when we received the TS/SACK in the initial SYN. - if h.state == handshakeSynRcvd { - synOpts.TS = h.ep.SendTSOk - synOpts.SACKPermitted = h.ep.SACKPermitted && bool(sackEnabled) - if h.sndWndScale < 0 { - // Disable window scaling if the peer did not send us - // the window scaling option. - synOpts.WS = -1 - } - } - - h.sendSYNOpts = synOpts - h.ep.sendSynTCP(h.ep.route, tcpFields{ - id: h.ep.TransportEndpointInfo.ID, - ttl: calculateTTL(h.ep.route, h.ep.ipv4TTL, h.ep.ipv6HopLimit), - tos: h.ep.sendTOS, - flags: h.flags, - seq: h.iss, - ack: h.ackNum, - rcvWnd: h.rcvWnd, - }, synOpts) -} - -// retransmitHandler handles retransmissions of un-acked SYNs. -// +checklocks:h.ep.mu -func (h *handshake) retransmitHandlerLocked() tcpip.Error { - e := h.ep - // If the endpoint has already transition out of a connecting state due - // to say an error (e.g) peer send RST or an ICMP error. Then just - // return. Any required cleanup should have been done when the RST/error - // was handled. - if !e.EndpointState().connecting() { - return nil - } - - if err := h.retransmitTimer.reset(); err != nil { - return err - } - - // Resend the SYN/SYN-ACK only if the following conditions hold. - // - It's an active handshake (deferAccept does not apply) - // - It's a passive handshake and we have not yet got the final-ACK. - // - It's a passive handshake and we got an ACK but deferAccept is - // enabled and we are now past the deferAccept duration. - // The last is required to provide a way for the peer to complete - // the connection with another ACK or data (as ACKs are never - // retransmitted on their own). - if h.active || !h.acked || h.deferAccept != 0 && e.stack.Clock().NowMonotonic().Sub(h.startTime) > h.deferAccept { - e.sendSynTCP(e.route, tcpFields{ - id: e.TransportEndpointInfo.ID, - ttl: calculateTTL(e.route, e.ipv4TTL, e.ipv6HopLimit), - tos: e.sendTOS, - flags: h.flags, - seq: h.iss, - ack: h.ackNum, - rcvWnd: h.rcvWnd, - }, h.sendSYNOpts) - // If we have ever retransmitted the SYN-ACK or - // SYN segment, we should only measure RTT if - // TS option is present. - h.sampleRTTWithTSOnly = true - } - return nil -} - -// transitionToStateEstablisedLocked transitions the endpoint of the handshake -// to an established state given the last segment received from peer. It also -// initializes sender/receiver. -// +checklocks:h.ep.mu -func (h *handshake) transitionToStateEstablishedLocked(s *segment) { - // Stop the SYN retransmissions now that handshake is complete. - if h.retransmitTimer != nil { - h.retransmitTimer.stop() - } - - // Transfer handshake state to TCP connection. We disable - // receive window scaling if the peer doesn't support it - // (indicated by a negative send window scale). - h.ep.snd = newSender(h.ep, h.iss, h.ackNum-1, h.sndWnd, h.mss, h.sndWndScale) - - now := h.ep.stack.Clock().NowMonotonic() - - var rtt time.Duration - if h.ep.SendTSOk && s.parsedOptions.TSEcr != 0 { - rtt = h.ep.elapsed(now, s.parsedOptions.TSEcr) - } - if !h.sampleRTTWithTSOnly && rtt == 0 { - rtt = now.Sub(h.startTime) - } - - if rtt > 0 { - h.ep.snd.updateRTO(rtt) - } - - h.ep.rcvQueueMu.Lock() - h.ep.rcv = newReceiver(h.ep, h.ackNum-1, h.rcvWnd, h.effectiveRcvWndScale()) - // Bootstrap the auto tuning algorithm. Starting at zero will - // result in a really large receive window after the first auto - // tuning adjustment. - h.ep.RcvAutoParams.PrevCopiedBytes = int(h.rcvWnd) - h.ep.rcvQueueMu.Unlock() - - h.ep.setEndpointState(StateEstablished) - - // Completing the 3-way handshake is an indication that the route is valid - // and the remote is reachable as the only way we can complete a handshake - // is if our SYN reached the remote and their ACK reached us. - h.ep.route.ConfirmReachable() - - // Tell waiters that the endpoint is connected and writable. - h.ep.waiterQueue.Notify(waiter.WritableEvents) -} - -type backoffTimer struct { - timeout time.Duration - maxTimeout time.Duration - t tcpip.Timer -} - -func newBackoffTimer(clock tcpip.Clock, timeout, maxTimeout time.Duration, f func()) (*backoffTimer, tcpip.Error) { - if timeout > maxTimeout { - return nil, &tcpip.ErrTimeout{} - } - bt := &backoffTimer{timeout: timeout, maxTimeout: maxTimeout} - bt.t = clock.AfterFunc(timeout, f) - return bt, nil -} - -func (bt *backoffTimer) reset() tcpip.Error { - bt.timeout *= 2 - if bt.timeout > bt.maxTimeout { - return &tcpip.ErrTimeout{} - } - bt.t.Reset(bt.timeout) - return nil -} - -func (bt *backoffTimer) reinit(timeout time.Duration) { - bt.timeout = timeout - bt.t.Reset(bt.timeout) -} - -func (bt *backoffTimer) stop() { - bt.t.Stop() -} - -func parseSynSegmentOptions(s *segment) header.TCPSynOptions { - synOpts := header.ParseSynOptions(s.options, s.flags.Contains(header.TCPFlagAck)) - if synOpts.TS { - s.parsedOptions.TSVal = synOpts.TSVal - s.parsedOptions.TSEcr = synOpts.TSEcr - } - return synOpts -} - -var optionPool = sync.Pool{ - New: func() any { - return &[maxOptionSize]byte{} - }, -} - -func getOptions() []byte { - return (*optionPool.Get().(*[maxOptionSize]byte))[:] -} - -func putOptions(options []byte) { - // Reslice to full capacity. - optionPool.Put(optionsToArray(options)) -} - -func makeSynOptions(opts header.TCPSynOptions) []byte { - // Emulate linux option order. This is as follows: - // - // if md5: NOP NOP MD5SIG 18 md5sig(16) - // if mss: MSS 4 mss(2) - // if ts and sack_advertise: - // SACK 2 TIMESTAMP 2 timestamp(8) - // elif ts: NOP NOP TIMESTAMP 10 timestamp(8) - // elif sack: NOP NOP SACK 2 - // if wscale: NOP WINDOW 3 ws(1) - // if sack_blocks: NOP NOP SACK ((2 + (#blocks * 8)) - // [for each block] start_seq(4) end_seq(4) - // if fastopen_cookie: - // if exp: EXP (4 + len(cookie)) FASTOPEN_MAGIC(2) - // else: FASTOPEN (2 + len(cookie)) - // cookie(variable) [padding to four bytes] - // - options := getOptions() - - // Always encode the mss. - offset := header.EncodeMSSOption(uint32(opts.MSS), options) - - // Special ordering is required here. If both TS and SACK are enabled, - // then the SACK option precedes TS, with no padding. If they are - // enabled individually, then we see padding before the option. - if opts.TS && opts.SACKPermitted { - offset += header.EncodeSACKPermittedOption(options[offset:]) - offset += header.EncodeTSOption(opts.TSVal, opts.TSEcr, options[offset:]) - } else if opts.TS { - offset += header.EncodeNOP(options[offset:]) - offset += header.EncodeNOP(options[offset:]) - offset += header.EncodeTSOption(opts.TSVal, opts.TSEcr, options[offset:]) - } else if opts.SACKPermitted { - offset += header.EncodeNOP(options[offset:]) - offset += header.EncodeNOP(options[offset:]) - offset += header.EncodeSACKPermittedOption(options[offset:]) - } - - // Initialize the WS option. - if opts.WS >= 0 { - offset += header.EncodeNOP(options[offset:]) - offset += header.EncodeWSOption(opts.WS, options[offset:]) - } - - // Padding to the end; note that this never apply unless we add a - // fastopen option, we always expect the offset to remain the same. - if delta := header.AddTCPOptionPadding(options, offset); delta != 0 { - panic("unexpected option encoding") - } - - return options[:offset] -} - -// tcpFields is a struct to carry different parameters required by the -// send*TCP variant functions below. -type tcpFields struct { - id stack.TransportEndpointID - ttl uint8 - tos uint8 - flags header.TCPFlags - seq seqnum.Value - ack seqnum.Value - rcvWnd seqnum.Size - opts []byte - txHash uint32 - df bool -} - -func (e *Endpoint) sendSynTCP(r *stack.Route, tf tcpFields, opts header.TCPSynOptions) tcpip.Error { - tf.opts = makeSynOptions(opts) - // We ignore SYN send errors and let the callers re-attempt send. - p := stack.NewPacketBuffer(stack.PacketBufferOptions{ReserveHeaderBytes: header.TCPMinimumSize + int(r.MaxHeaderLength()) + len(tf.opts)}) - defer p.DecRef() - if err := e.sendTCP(r, tf, p, stack.GSO{}); err != nil { - e.stats.SendErrors.SynSendToNetworkFailed.Increment() - } - putOptions(tf.opts) - return nil -} - -// This method takes ownership of pkt. -func (e *Endpoint) sendTCP(r *stack.Route, tf tcpFields, pkt *stack.PacketBuffer, gso stack.GSO) tcpip.Error { - tf.txHash = e.txHash - if err := sendTCP(r, tf, pkt, gso, e.owner); err != nil { - e.stats.SendErrors.SegmentSendToNetworkFailed.Increment() - return err - } - e.stats.SegmentsSent.Increment() - return nil -} - -func buildTCPHdr(r *stack.Route, tf tcpFields, pkt *stack.PacketBuffer, gso stack.GSO) { - optLen := len(tf.opts) - tcp := header.TCP(pkt.TransportHeader().Push(header.TCPMinimumSize + optLen)) - pkt.TransportProtocolNumber = header.TCPProtocolNumber - tcp.Encode(&header.TCPFields{ - SrcPort: tf.id.LocalPort, - DstPort: tf.id.RemotePort, - SeqNum: uint32(tf.seq), - AckNum: uint32(tf.ack), - DataOffset: uint8(header.TCPMinimumSize + optLen), - Flags: tf.flags, - WindowSize: uint16(tf.rcvWnd), - }) - copy(tcp[header.TCPMinimumSize:], tf.opts) - - xsum := r.PseudoHeaderChecksum(ProtocolNumber, uint16(pkt.Size())) - // Only calculate the checksum if offloading isn't supported. - if gso.Type != stack.GSONone && gso.NeedsCsum { - // This is called CHECKSUM_PARTIAL in the Linux kernel. We - // calculate a checksum of the pseudo-header and save it in the - // TCP header, then the kernel calculate a checksum of the - // header and data and get the right sum of the TCP packet. - tcp.SetChecksum(xsum) - } else if r.RequiresTXTransportChecksum() { - xsum = checksum.Combine(xsum, pkt.Data().Checksum()) - tcp.SetChecksum(^tcp.CalculateChecksum(xsum)) - } -} - -func sendTCPBatch(r *stack.Route, tf tcpFields, pkt *stack.PacketBuffer, gso stack.GSO, owner tcpip.PacketOwner) tcpip.Error { - optLen := len(tf.opts) - if tf.rcvWnd > math.MaxUint16 { - tf.rcvWnd = math.MaxUint16 - } - - mss := int(gso.MSS) - n := (pkt.Data().Size() + mss - 1) / mss - - size := pkt.Data().Size() - hdrSize := header.TCPMinimumSize + int(r.MaxHeaderLength()) + optLen - for i := 0; i < n; i++ { - packetSize := mss - if packetSize > size { - packetSize = size - } - size -= packetSize - - pkt := pkt - // No need to split the packet in the final iteration. The original - // packet already has the truncated data. - shouldSplitPacket := i != n-1 - if shouldSplitPacket { - splitPkt := stack.NewPacketBuffer(stack.PacketBufferOptions{ReserveHeaderBytes: hdrSize}) - splitPkt.Data().ReadFromPacketData(pkt.Data(), packetSize) - pkt = splitPkt - } - pkt.Hash = tf.txHash - pkt.Owner = owner - - buildTCPHdr(r, tf, pkt, gso) - tf.seq = tf.seq.Add(seqnum.Size(packetSize)) - pkt.GSOOptions = gso - if err := r.WritePacket(stack.NetworkHeaderParams{Protocol: ProtocolNumber, TTL: tf.ttl, TOS: tf.tos, DF: tf.df}, pkt); err != nil { - r.Stats().TCP.SegmentSendErrors.Increment() - if shouldSplitPacket { - pkt.DecRef() - } - return err - } - r.Stats().TCP.SegmentsSent.Increment() - if shouldSplitPacket { - pkt.DecRef() - } - } - return nil -} - -// sendTCP sends a TCP segment with the provided options via the provided -// network endpoint and under the provided identity. This method takes -// ownership of pkt. -func sendTCP(r *stack.Route, tf tcpFields, pkt *stack.PacketBuffer, gso stack.GSO, owner tcpip.PacketOwner) tcpip.Error { - if tf.rcvWnd > math.MaxUint16 { - tf.rcvWnd = math.MaxUint16 - } - - if r.Loop()&stack.PacketLoop == 0 && gso.Type == stack.GSOGvisor && int(gso.MSS) < pkt.Data().Size() { - return sendTCPBatch(r, tf, pkt, gso, owner) - } - - pkt.GSOOptions = gso - pkt.Hash = tf.txHash - pkt.Owner = owner - buildTCPHdr(r, tf, pkt, gso) - - if err := r.WritePacket(stack.NetworkHeaderParams{Protocol: ProtocolNumber, TTL: tf.ttl, TOS: tf.tos, DF: tf.df}, pkt); err != nil { - r.Stats().TCP.SegmentSendErrors.Increment() - return err - } - r.Stats().TCP.SegmentsSent.Increment() - if (tf.flags & header.TCPFlagRst) != 0 { - r.Stats().TCP.ResetsSent.Increment() - } - return nil -} - -// makeOptions makes an options slice. -func (e *Endpoint) makeOptions(sackBlocks []header.SACKBlock) []byte { - options := getOptions() - offset := 0 - - // N.B. the ordering here matches the ordering used by Linux internally - // and described in the raw makeOptions function. We don't include - // unnecessary cases here (post connection.) - if e.SendTSOk { - // Embed the timestamp if timestamp has been enabled. - // - // We only use the lower 32 bits of the unix time in - // milliseconds. This is similar to what Linux does where it - // uses the lower 32 bits of the jiffies value in the tsVal - // field of the timestamp option. - // - // Further, RFC7323 section-5.4 recommends millisecond - // resolution as the lowest recommended resolution for the - // timestamp clock. - // - // Ref: https://tools.ietf.org/html/rfc7323#section-5.4. - offset += header.EncodeNOP(options[offset:]) - offset += header.EncodeNOP(options[offset:]) - offset += header.EncodeTSOption(e.tsValNow(), e.recentTimestamp(), options[offset:]) - } - if e.SACKPermitted && len(sackBlocks) > 0 { - offset += header.EncodeNOP(options[offset:]) - offset += header.EncodeNOP(options[offset:]) - offset += header.EncodeSACKBlocks(sackBlocks, options[offset:]) - } - - // We expect the above to produce an aligned offset. - if delta := header.AddTCPOptionPadding(options, offset); delta != 0 { - panic("unexpected option encoding") - } - - return options[:offset] -} - -// sendEmptyRaw sends a TCP segment with no payload to the endpoint's peer. -// -// +checklocks:e.mu -// +checklocksalias:e.snd.ep.mu=e.mu -func (e *Endpoint) sendEmptyRaw(flags header.TCPFlags, seq, ack seqnum.Value, rcvWnd seqnum.Size) tcpip.Error { - pkt := stack.NewPacketBuffer(stack.PacketBufferOptions{}) - defer pkt.DecRef() - return e.sendRaw(pkt, flags, seq, ack, rcvWnd) -} - -// sendRaw sends a TCP segment to the endpoint's peer. This method takes -// ownership of pkt. pkt must not have any headers set. -// -// +checklocks:e.mu -// +checklocksalias:e.snd.ep.mu=e.mu -func (e *Endpoint) sendRaw(pkt *stack.PacketBuffer, flags header.TCPFlags, seq, ack seqnum.Value, rcvWnd seqnum.Size) tcpip.Error { - var sackBlocks []header.SACKBlock - if e.EndpointState() == StateEstablished && e.rcv.pendingRcvdSegments.Len() > 0 && (flags&header.TCPFlagAck != 0) { - sackBlocks = e.sack.Blocks[:e.sack.NumBlocks] - } - options := e.makeOptions(sackBlocks) - defer putOptions(options) - pkt.ReserveHeaderBytes(header.TCPMinimumSize + int(e.route.MaxHeaderLength()) + len(options)) - return e.sendTCP(e.route, tcpFields{ - id: e.TransportEndpointInfo.ID, - ttl: calculateTTL(e.route, e.ipv4TTL, e.ipv6HopLimit), - tos: e.sendTOS, - flags: flags, - seq: seq, - ack: ack, - rcvWnd: rcvWnd, - opts: options, - df: e.pmtud == tcpip.PMTUDiscoveryWant || e.pmtud == tcpip.PMTUDiscoveryDo, - }, pkt, e.gso) -} - -// +checklocks:e.mu -// +checklocksalias:e.snd.ep.mu=e.mu -func (e *Endpoint) sendData(next *segment) { - // Initialize the next segment to write if it's currently nil. - if e.snd.writeNext == nil { - if next == nil { - return - } - e.snd.updateWriteNext(next) - } - - // Push out any new packets. - e.snd.sendData() -} - -// resetConnectionLocked puts the endpoint in an error state with the given -// error code and sends a RST if and only if the error is not ErrConnectionReset -// indicating that the connection is being reset due to receiving a RST. This -// method must only be called from the protocol goroutine. -// +checklocks:e.mu -func (e *Endpoint) resetConnectionLocked(err tcpip.Error) { - // Only send a reset if the connection is being aborted for a reason - // other than receiving a reset. - e.hardError = err - switch err.(type) { - case *tcpip.ErrConnectionReset, *tcpip.ErrTimeout: - default: - // The exact sequence number to be used for the RST is the same as the - // one used by Linux. We need to handle the case of window being shrunk - // which can cause sndNxt to be outside the acceptable window on the - // receiver. - // - // See: https://www.snellman.net/blog/archive/2016-02-01-tcp-rst/ for more - // information. - sndWndEnd := e.snd.SndUna.Add(e.snd.SndWnd) - resetSeqNum := sndWndEnd - if !sndWndEnd.LessThan(e.snd.SndNxt) || e.snd.SndNxt.Size(sndWndEnd) < (1< - // - // After sending the acknowledgment, TCP MUST drop the unacceptable - // segment and stop processing further. - // - // By sending an ACK, the remote peer is challenged to confirm the loss - // of the previous connection and the request to start a new connection. - // A legitimate peer, after restart, would not have a TCB in the - // synchronized state. Thus, when the ACK arrives, the peer should send - // a RST segment back with the sequence number derived from the ACK - // field that caused the RST. - - // This RST will confirm that the remote peer has indeed closed the - // previous connection. Upon receipt of a valid RST, the local TCP - // endpoint MUST terminate its connection. The local TCP endpoint - // should then rely on SYN retransmission from the remote end to - // re-establish the connection. - e.snd.maybeSendOutOfWindowAck(s) - } else if s.flags.Contains(header.TCPFlagAck) { - // Patch the window size in the segment according to the - // send window scale. - s.window <<= e.snd.SndWndScale - - // RFC 793, page 41 states that "once in the ESTABLISHED - // state all segments must carry current acknowledgment - // information." - drop, err := e.rcv.handleRcvdSegment(s) - if err != nil { - return false, err - } - if drop { - return true, nil - } - - // Now check if the received segment has caused us to transition - // to a CLOSED state, if yes then terminate processing and do - // not invoke the sender. - state := e.EndpointState() - if state == StateClose { - // When we get into StateClose while processing from the queue, - // return immediately and let the protocolMainloop handle it. - // - // We can reach StateClose only while processing a previous segment - // or a notification from the protocolMainLoop (caller goroutine). - // This means that with this return, the segment dequeue below can - // never occur on a closed endpoint. - return false, nil - } - - e.snd.handleRcvdSegment(s) - } - - return true, nil -} - -// keepaliveTimerExpired is called when the keepaliveTimer fires. We send TCP -// keepalive packets periodically when the connection is idle. If we don't hear -// from the other side after a number of tries, we terminate the connection. -// +checklocks:e.mu -// +checklocksalias:e.snd.ep.mu=e.mu -func (e *Endpoint) keepaliveTimerExpired() tcpip.Error { - userTimeout := e.userTimeout - - // If the route is not ready or already cleaned up, then we don't need to - // send keepalives. - if e.route == nil { - return nil - } - e.keepalive.Lock() - if !e.SocketOptions().GetKeepAlive() || e.keepalive.timer.isUninitialized() || !e.keepalive.timer.checkExpiration() { - e.keepalive.Unlock() - return nil - } - - // If a userTimeout is set then abort the connection if it is - // exceeded. - if userTimeout != 0 && e.stack.Clock().NowMonotonic().Sub(e.rcv.lastRcvdAckTime) >= userTimeout && e.keepalive.unacked > 0 { - e.keepalive.Unlock() - e.stack.Stats().TCP.EstablishedTimedout.Increment() - return &tcpip.ErrTimeout{} - } - - if e.keepalive.unacked >= e.keepalive.count { - e.keepalive.Unlock() - e.stack.Stats().TCP.EstablishedTimedout.Increment() - return &tcpip.ErrTimeout{} - } - - // RFC1122 4.2.3.6: TCP keepalive is a dataless ACK with - // seg.seq = snd.nxt-1. - e.keepalive.unacked++ - e.keepalive.Unlock() - e.snd.sendEmptySegment(header.TCPFlagAck, e.snd.SndNxt-1) - e.resetKeepaliveTimer(false) - return nil -} - -// resetKeepaliveTimer restarts or stops the keepalive timer, depending on -// whether it is enabled for this endpoint. -func (e *Endpoint) resetKeepaliveTimer(receivedData bool) { - e.keepalive.Lock() - defer e.keepalive.Unlock() - if e.keepalive.timer.isUninitialized() { - if state := e.EndpointState(); !state.closed() { - panic(fmt.Sprintf("Unexpected state when the keepalive time is cleaned up, got %s, want %s or %s", state, StateClose, StateError)) - } - return - } - if receivedData { - e.keepalive.unacked = 0 - } - // Start the keepalive timer IFF it's enabled and there is no pending - // data to send. - if !e.SocketOptions().GetKeepAlive() || e.snd == nil || e.snd.SndUna != e.snd.SndNxt { - e.keepalive.timer.disable() - return - } - if e.keepalive.unacked > 0 { - e.keepalive.timer.enable(e.keepalive.interval) - } else { - e.keepalive.timer.enable(e.keepalive.idle) - } -} - -// disableKeepaliveTimer stops the keepalive timer. -func (e *Endpoint) disableKeepaliveTimer() { - e.keepalive.Lock() - e.keepalive.timer.disable() - e.keepalive.Unlock() -} - -// finWait2TimerExpired is called when the FIN-WAIT-2 timeout is hit -// and the peer hasn't sent us a FIN. -func (e *Endpoint) finWait2TimerExpired() { - e.mu.Lock() - e.transitionToStateCloseLocked() - e.mu.Unlock() - e.drainClosingSegmentQueue() - e.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) -} - -// +checklocks:e.mu -func (e *Endpoint) handshakeFailed(err tcpip.Error) { - e.lastErrorMu.Lock() - e.lastError = err - e.lastErrorMu.Unlock() - // handshakeFailed is also called from startHandshake when a listener - // transitions out of Listen state by the time the SYN is processed. In - // such cases the handshake is never initialized and the newly created - // endpoint is closed right away. - if e.h != nil && e.h.retransmitTimer != nil { - e.h.retransmitTimer.stop() - } - e.hardError = err - e.cleanupLocked() - e.setEndpointState(StateError) -} - -// handleTimeWaitSegments processes segments received during TIME_WAIT -// state. -// +checklocks:e.mu -// +checklocksalias:e.rcv.ep.mu=e.mu -func (e *Endpoint) handleTimeWaitSegments() (extendTimeWait bool, reuseTW func()) { - for i := 0; i < maxSegmentsPerWake; i++ { - s := e.segmentQueue.dequeue() - if s == nil { - break - } - extTW, newSyn := e.rcv.handleTimeWaitSegment(s) - if newSyn { - info := e.TransportEndpointInfo - newID := info.ID - newID.RemoteAddress = tcpip.Address{} - newID.RemotePort = 0 - netProtos := []tcpip.NetworkProtocolNumber{info.NetProto} - // If the local address is an IPv4 address then also - // look for IPv6 dual stack endpoints that might be - // listening on the local address. - if newID.LocalAddress.To4() != (tcpip.Address{}) { - netProtos = []tcpip.NetworkProtocolNumber{header.IPv4ProtocolNumber, header.IPv6ProtocolNumber} - } - for _, netProto := range netProtos { - if listenEP := e.stack.FindTransportEndpoint(netProto, info.TransProto, newID, s.pkt.NICID); listenEP != nil { - tcpEP := listenEP.(*Endpoint) - if EndpointState(tcpEP.State()) == StateListen { - reuseTW = func() { - if !tcpEP.enqueueSegment(s) { - return - } - tcpEP.notifyProcessor() - s.DecRef() - } - // We explicitly do not DecRef the segment as it's still valid and - // being reflected to a listening endpoint. - return false, reuseTW - } - } - } - } - if extTW { - extendTimeWait = true - } - s.DecRef() - } - return extendTimeWait, nil -} - -// +checklocks:e.mu -func (e *Endpoint) getTimeWaitDuration() time.Duration { - timeWaitDuration := DefaultTCPTimeWaitTimeout - - // Get the stack wide configuration. - var tcpTW tcpip.TCPTimeWaitTimeoutOption - if err := e.stack.TransportProtocolOption(ProtocolNumber, &tcpTW); err == nil { - timeWaitDuration = time.Duration(tcpTW) - } - return timeWaitDuration -} - -// timeWaitTimerExpired is called when an endpoint completes the required time -// (typically 2 * MSL unless configured to something else at a stack level) in -// TIME-WAIT state. -func (e *Endpoint) timeWaitTimerExpired() { - e.mu.Lock() - if e.EndpointState() != StateTimeWait { - e.mu.Unlock() - return - } - e.transitionToStateCloseLocked() - e.mu.Unlock() - e.drainClosingSegmentQueue() - e.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) -} - -// notifyProcessor queues this endpoint for processing to its TCP processor. -func (e *Endpoint) notifyProcessor() { - // We use TryLock here to avoid deadlocks in cases where a listening endpoint that is being - // closed tries to abort half completed connections which in turn try to queue any segments - // queued to that endpoint back to the same listening endpoint (because it may have got - // segments that matched its id but were either a RST or a new SYN which must be handled - // by a listening endpoint). In such cases the Close() on the listening endpoint will handle - // any queued segments after it releases the lock. - if !e.mu.TryLock() { - return - } - processor := e.protocol.dispatcher.selectProcessor(e.ID) - e.mu.Unlock() - processor.queueEndpoint(e) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/connect_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/connect_unsafe.go deleted file mode 100644 index cfc304616c..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/connect_unsafe.go +++ /dev/null @@ -1,30 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "reflect" - "unsafe" -) - -// optionsToArray converts a slice of capacity >-= maxOptionSize to an array. -// -// optionsToArray panics if the capacity of options is smaller than -// maxOptionSize. -func optionsToArray(options []byte) *[maxOptionSize]byte { - // Reslice to full capacity. - options = options[0:maxOptionSize] - return (*[maxOptionSize]byte)(unsafe.Pointer((*reflect.SliceHeader)(unsafe.Pointer(&options)).Data)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/cubic.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/cubic.go deleted file mode 100644 index 0b4e9c0ca3..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/cubic.go +++ /dev/null @@ -1,302 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "math" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -// effectivelyInfinity is an initialization value used for round-trip times -// that are then set using min. It is equal to approximately 100 years: large -// enough that it will always be greater than a real TCP round-trip time, and -// small enough that it fits in time.Duration. -const effectivelyInfinity = time.Duration(math.MaxInt64) - -const ( - // RTT = round-trip time. - - // The delay increase sensitivity is determined by minRTTThresh and - // maxRTTThresh. Smaller values of minRTTThresh may cause spurious exits - // from slow start. Larger values of maxRTTThresh may result in slow start - // not exiting until loss is encountered for connections on large RTT paths. - minRTTThresh = 4 * time.Millisecond - maxRTTThresh = 16 * time.Millisecond - - // minRTTDivisor is a fraction of RTT to compute the delay threshold. A - // smaller value would mean a larger threshold and thus less sensitivity to - // delay increase, and vice versa. - minRTTDivisor = 8 - - // nRTTSample is the minimum number of RTT samples in the round before - // considering whether to exit the round due to increased RTT. - nRTTSample = 8 - - // ackDelta is the maximum time between ACKs for them to be considered part - // of the same ACK Train during HyStart - ackDelta = 2 * time.Millisecond -) - -// cubicState stores the variables related to TCP CUBIC congestion -// control algorithm state. -// -// See: https://tools.ietf.org/html/rfc8312. -// +stateify savable -type cubicState struct { - stack.TCPCubicState - - // numCongestionEvents tracks the number of congestion events since last - // RTO. - numCongestionEvents int - - s *sender -} - -// newCubicCC returns a partially initialized cubic state with the constants -// beta and c set and t set to current time. -func newCubicCC(s *sender) *cubicState { - now := s.ep.stack.Clock().NowMonotonic() - return &cubicState{ - TCPCubicState: stack.TCPCubicState{ - T: now, - Beta: 0.7, - C: 0.4, - // By this point, the sender has initialized it's initial sequence - // number. - EndSeq: s.SndNxt, - LastRTT: effectivelyInfinity, - CurrRTT: effectivelyInfinity, - LastAck: now, - RoundStart: now, - }, - s: s, - } -} - -// enterCongestionAvoidance is used to initialize cubic in cases where we exit -// SlowStart without a real congestion event taking place. This can happen when -// a connection goes back to slow start due to a retransmit and we exceed the -// previously lowered ssThresh without experiencing packet loss. -// -// Refer: https://tools.ietf.org/html/rfc8312#section-4.8 -func (c *cubicState) enterCongestionAvoidance() { - // See: https://tools.ietf.org/html/rfc8312#section-4.7 & - // https://tools.ietf.org/html/rfc8312#section-4.8 - if c.numCongestionEvents == 0 { - c.K = 0 - c.T = c.s.ep.stack.Clock().NowMonotonic() - c.WLastMax = c.WMax - c.WMax = float64(c.s.SndCwnd) - } -} - -// updateHyStart tracks packet round-trip time (rtt) to find a safe threshold -// to exit slow start without triggering packet loss. It updates the SSThresh -// when it does. -// -// Implementation of HyStart follows the algorithm from the Linux kernel, rather -// than RFC 9406 (https://www.rfc-editor.org/rfc/rfc9406.html). Briefly, the -// Linux kernel algorithm is based directly on the original HyStart paper -// (https://doi.org/10.1016/j.comnet.2011.01.014), and differs from the RFC in -// that two detection algorithms run in parallel ('ACK train' and 'Delay -// increase'). The RFC version includes only the latter algorithm and adds an -// intermediate phase called Conservative Slow Start, which is not implemented -// here. -func (c *cubicState) updateHyStart(rtt time.Duration) { - if rtt < 0 { - // negative indicates unknown - return - } - now := c.s.ep.stack.Clock().NowMonotonic() - if c.EndSeq.LessThan(c.s.SndUna) { - c.beginHyStartRound(now) - } - // ACK train - if now.Sub(c.LastAck) < ackDelta && // ensures acks are part of the same "train" - c.LastRTT < effectivelyInfinity { - c.LastAck = now - if thresh := c.LastRTT / 2; now.Sub(c.RoundStart) > thresh { - c.s.Ssthresh = c.s.SndCwnd - } - } - - // Delay increase - c.CurrRTT = min(c.CurrRTT, rtt) - c.SampleCount++ - - if c.SampleCount >= nRTTSample && c.LastRTT < effectivelyInfinity { - // i.e. LastRTT/minRTTDivisor, but clamped to minRTTThresh & maxRTTThresh - thresh := max( - minRTTThresh, - min(maxRTTThresh, c.LastRTT/minRTTDivisor), - ) - if c.CurrRTT >= (c.LastRTT + thresh) { - // Triggered HyStart safe exit threshold - c.s.Ssthresh = c.s.SndCwnd - } - } -} - -func (c *cubicState) beginHyStartRound(now tcpip.MonotonicTime) { - c.EndSeq = c.s.SndNxt - c.SampleCount = 0 - c.LastRTT = c.CurrRTT - c.CurrRTT = effectivelyInfinity - c.LastAck = now - c.RoundStart = now -} - -// updateSlowStart will update the congestion window as per the slow-start -// algorithm used by NewReno. If after adjusting the congestion window we cross -// the ssThresh then it will return the number of packets that must be consumed -// in congestion avoidance mode. -func (c *cubicState) updateSlowStart(packetsAcked int) int { - // Don't let the congestion window cross into the congestion - // avoidance range. - newcwnd := c.s.SndCwnd + packetsAcked - enterCA := false - if newcwnd >= c.s.Ssthresh { - newcwnd = c.s.Ssthresh - c.s.SndCAAckCount = 0 - enterCA = true - } - - packetsAcked -= newcwnd - c.s.SndCwnd - c.s.SndCwnd = newcwnd - if enterCA { - c.enterCongestionAvoidance() - } - return packetsAcked -} - -// Update updates cubic's internal state variables. It must be called on every -// ACK received. -// Refer: https://tools.ietf.org/html/rfc8312#section-4 -func (c *cubicState) Update(packetsAcked int, rtt time.Duration) { - if c.s.Ssthresh == InitialSsthresh && c.s.SndCwnd < c.s.Ssthresh { - c.updateHyStart(rtt) - } - if c.s.SndCwnd < c.s.Ssthresh { - packetsAcked = c.updateSlowStart(packetsAcked) - if packetsAcked == 0 { - return - } - } else { - c.s.rtt.Lock() - srtt := c.s.rtt.TCPRTTState.SRTT - c.s.rtt.Unlock() - c.s.SndCwnd = c.getCwnd(packetsAcked, c.s.SndCwnd, srtt) - } -} - -// cubicCwnd computes the CUBIC congestion window after t seconds from last -// congestion event. -func (c *cubicState) cubicCwnd(t float64) float64 { - return c.C*math.Pow(t, 3.0) + c.WMax -} - -// getCwnd returns the current congestion window as computed by CUBIC. -// Refer: https://tools.ietf.org/html/rfc8312#section-4 -func (c *cubicState) getCwnd(packetsAcked, sndCwnd int, srtt time.Duration) int { - elapsed := c.s.ep.stack.Clock().NowMonotonic().Sub(c.T) - elapsedSeconds := elapsed.Seconds() - - // Compute the window as per Cubic after 'elapsed' time - // since last congestion event. - c.WC = c.cubicCwnd(elapsedSeconds - c.K) - - // Compute the TCP friendly estimate of the congestion window. - c.WEst = c.WMax*c.Beta + (3.0*((1.0-c.Beta)/(1.0+c.Beta)))*(elapsedSeconds/srtt.Seconds()) - - // Make sure in the TCP friendly region CUBIC performs at least - // as well as Reno. - if c.WC < c.WEst && float64(sndCwnd) < c.WEst { - // TCP Friendly region of cubic. - return int(c.WEst) - } - - // In Concave/Convex region of CUBIC, calculate what CUBIC window - // will be after 1 RTT and use that to grow congestion window - // for every ack. - tEst := (elapsed + srtt).Seconds() - wtRtt := c.cubicCwnd(tEst - c.K) - // As per 4.3 for each received ACK cwnd must be incremented - // by (w_cubic(t+RTT) - cwnd/cwnd. - cwnd := float64(sndCwnd) - for i := 0; i < packetsAcked; i++ { - // Concave/Convex regions of cubic have the same formulas. - // See: https://tools.ietf.org/html/rfc8312#section-4.3 - cwnd += (wtRtt - cwnd) / cwnd - } - return int(cwnd) -} - -// HandleLossDetected implements congestionControl.HandleLossDetected. -func (c *cubicState) HandleLossDetected() { - // See: https://tools.ietf.org/html/rfc8312#section-4.5 - c.numCongestionEvents++ - c.T = c.s.ep.stack.Clock().NowMonotonic() - c.WLastMax = c.WMax - c.WMax = float64(c.s.SndCwnd) - - c.fastConvergence() - c.reduceSlowStartThreshold() -} - -// HandleRTOExpired implements congestionContrl.HandleRTOExpired. -func (c *cubicState) HandleRTOExpired() { - // See: https://tools.ietf.org/html/rfc8312#section-4.6 - c.T = c.s.ep.stack.Clock().NowMonotonic() - c.numCongestionEvents = 0 - c.WLastMax = c.WMax - c.WMax = float64(c.s.SndCwnd) - - c.fastConvergence() - - // We lost a packet, so reduce ssthresh. - c.reduceSlowStartThreshold() - - // Reduce the congestion window to 1, i.e., enter slow-start. Per - // RFC 5681, page 7, we must use 1 regardless of the value of the - // initial congestion window. - c.s.SndCwnd = 1 -} - -// fastConvergence implements the logic for Fast Convergence algorithm as -// described in https://tools.ietf.org/html/rfc8312#section-4.6. -func (c *cubicState) fastConvergence() { - if c.WMax < c.WLastMax { - c.WLastMax = c.WMax - c.WMax = c.WMax * (1.0 + c.Beta) / 2.0 - } else { - c.WLastMax = c.WMax - } - // Recompute k as wMax may have changed. - c.K = math.Cbrt(c.WMax * (1 - c.Beta) / c.C) -} - -// PostRecovery implements congestionControl.PostRecovery. -func (c *cubicState) PostRecovery() { - c.T = c.s.ep.stack.Clock().NowMonotonic() -} - -// reduceSlowStartThreshold returns new SsThresh as described in -// https://tools.ietf.org/html/rfc8312#section-4.7. -func (c *cubicState) reduceSlowStartThreshold() { - c.s.Ssthresh = int(math.Max(float64(c.s.SndCwnd)*c.Beta, 2.0)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/dispatcher.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/dispatcher.go deleted file mode 100644 index aeebbd641d..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/dispatcher.go +++ /dev/null @@ -1,519 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "encoding/binary" - "fmt" - "math/rand" - - "gvisor.dev/gvisor/pkg/sleep" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/hash/jenkins" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/waiter" -) - -// epQueue is a queue of endpoints. -// -// +stateify savable -type epQueue struct { - mu sync.Mutex `state:"nosave"` - list endpointList -} - -// enqueue adds e to the queue if the endpoint is not already on the queue. -func (q *epQueue) enqueue(e *Endpoint) { - q.mu.Lock() - defer q.mu.Unlock() - e.pendingProcessingMu.Lock() - defer e.pendingProcessingMu.Unlock() - - if e.pendingProcessing { - return - } - q.list.PushBack(e) - e.pendingProcessing = true -} - -// dequeue removes and returns the first element from the queue if available, -// returns nil otherwise. -func (q *epQueue) dequeue() *Endpoint { - q.mu.Lock() - if e := q.list.Front(); e != nil { - q.list.Remove(e) - e.pendingProcessingMu.Lock() - e.pendingProcessing = false - e.pendingProcessingMu.Unlock() - q.mu.Unlock() - return e - } - q.mu.Unlock() - return nil -} - -// empty returns true if the queue is empty, false otherwise. -func (q *epQueue) empty() bool { - q.mu.Lock() - v := q.list.Empty() - q.mu.Unlock() - return v -} - -// processor is responsible for processing packets queued to a tcp endpoint. -// -// +stateify savable -type processor struct { - epQ epQueue - sleeper sleep.Sleeper - // TODO(b/341946753): Restore them when netstack is savable. - newEndpointWaker sleep.Waker `state:"nosave"` - closeWaker sleep.Waker `state:"nosave"` - pauseWaker sleep.Waker `state:"nosave"` - pauseChan chan struct{} `state:"nosave"` - resumeChan chan struct{} `state:"nosave"` -} - -func (p *processor) close() { - p.closeWaker.Assert() -} - -func (p *processor) queueEndpoint(ep *Endpoint) { - // Queue an endpoint for processing by the processor goroutine. - p.epQ.enqueue(ep) - p.newEndpointWaker.Assert() -} - -// deliverAccepted delivers a passively connected endpoint to the accept queue -// of its associated listening endpoint. -// -// +checklocks:ep.mu -func deliverAccepted(ep *Endpoint) bool { - lEP := ep.h.listenEP - lEP.acceptMu.Lock() - - // Remove endpoint from list of pendingEndpoints as the handshake is now - // complete. - delete(lEP.acceptQueue.pendingEndpoints, ep) - // Deliver this endpoint to the listening socket's accept queue. - if lEP.acceptQueue.capacity == 0 { - lEP.acceptMu.Unlock() - return false - } - - // NOTE: We always queue the endpoint and on purpose do not check if - // accept queue is full at this point. This is similar to linux because - // two racing incoming ACK's can both pass the acceptQueue.isFull check - // and proceed to ESTABLISHED state. In such a case its better to - // deliver both even if it temporarily exceeds the queue limit rather - // than drop a connection that is fully connected. - // - // For reference see: - // https://github.com/torvalds/linux/blob/169e77764adc041b1dacba84ea90516a895d43b2/net/ipv4/tcp_minisocks.c#L764 - // https://github.com/torvalds/linux/blob/169e77764adc041b1dacba84ea90516a895d43b2/net/ipv4/tcp_ipv4.c#L1500 - lEP.acceptQueue.endpoints.PushBack(ep) - lEP.acceptMu.Unlock() - ep.h.listenEP.waiterQueue.Notify(waiter.ReadableEvents) - - return true -} - -// handleConnecting is responsible for TCP processing for an endpoint in one of -// the connecting states. -func handleConnecting(ep *Endpoint) { - if !ep.TryLock() { - return - } - cleanup := func() { - ep.mu.Unlock() - ep.drainClosingSegmentQueue() - ep.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) - } - if !ep.EndpointState().connecting() { - // If the endpoint has already transitioned out of a connecting - // stage then just return (only possible if it was closed or - // timed out by the time we got around to processing the wakeup. - ep.mu.Unlock() - return - } - if err := ep.h.processSegments(); err != nil { // +checklocksforce:ep.h.ep.mu - // handshake failed. clean up the tcp endpoint and handshake - // state. - if lEP := ep.h.listenEP; lEP != nil { - lEP.acceptMu.Lock() - delete(lEP.acceptQueue.pendingEndpoints, ep) - lEP.acceptMu.Unlock() - } - ep.handshakeFailed(err) - cleanup() - return - } - - if ep.EndpointState() == StateEstablished && ep.h.listenEP != nil { - ep.isConnectNotified = true - ep.stack.Stats().TCP.PassiveConnectionOpenings.Increment() - if !deliverAccepted(ep) { - ep.resetConnectionLocked(&tcpip.ErrConnectionAborted{}) - cleanup() - return - } - } - ep.mu.Unlock() -} - -// handleConnected is responsible for TCP processing for an endpoint in one of -// the connected states(StateEstablished, StateFinWait1 etc.) -func handleConnected(ep *Endpoint) { - if !ep.TryLock() { - return - } - - if !ep.EndpointState().connected() { - // If the endpoint has already transitioned out of a connected - // state then just return (only possible if it was closed or - // timed out by the time we got around to processing the wakeup. - ep.mu.Unlock() - return - } - - // NOTE: We read this outside of e.mu lock which means that by the time - // we get to handleSegments the endpoint may not be in ESTABLISHED. But - // this should be fine as all normal shutdown states are handled by - // handleSegmentsLocked. - switch err := ep.handleSegmentsLocked(); { - case err != nil: - // Send any active resets if required. - ep.resetConnectionLocked(err) - fallthrough - case ep.EndpointState() == StateClose: - ep.mu.Unlock() - ep.drainClosingSegmentQueue() - ep.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) - return - case ep.EndpointState() == StateTimeWait: - startTimeWait(ep) - } - ep.mu.Unlock() -} - -// startTimeWait starts a new goroutine to handle TIME-WAIT. -// -// +checklocks:ep.mu -func startTimeWait(ep *Endpoint) { - // Disable close timer as we are now entering real TIME_WAIT. - if ep.finWait2Timer != nil { - ep.finWait2Timer.Stop() - } - // Wake up any waiters before we start TIME-WAIT. - ep.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) - timeWaitDuration := ep.getTimeWaitDuration() - ep.timeWaitTimer = ep.stack.Clock().AfterFunc(timeWaitDuration, ep.timeWaitTimerExpired) -} - -// handleTimeWait is responsible for TCP processing for an endpoint in TIME-WAIT -// state. -func handleTimeWait(ep *Endpoint) { - if !ep.TryLock() { - return - } - - if ep.EndpointState() != StateTimeWait { - // If the endpoint has already transitioned out of a TIME-WAIT - // state then just return (only possible if it was closed or - // timed out by the time we got around to processing the wakeup. - ep.mu.Unlock() - return - } - - extendTimeWait, reuseTW := ep.handleTimeWaitSegments() - if reuseTW != nil { - ep.transitionToStateCloseLocked() - ep.mu.Unlock() - ep.drainClosingSegmentQueue() - ep.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) - reuseTW() - return - } - if extendTimeWait { - ep.timeWaitTimer.Reset(ep.getTimeWaitDuration()) - } - ep.mu.Unlock() -} - -// handleListen is responsible for TCP processing for an endpoint in LISTEN -// state. -func handleListen(ep *Endpoint) { - if !ep.TryLock() { - return - } - defer ep.mu.Unlock() - - if ep.EndpointState() != StateListen { - // If the endpoint has already transitioned out of a LISTEN - // state then just return (only possible if it was closed or - // shutdown). - return - } - - for i := 0; i < maxSegmentsPerWake; i++ { - s := ep.segmentQueue.dequeue() - if s == nil { - break - } - - // TODO(gvisor.dev/issue/4690): Better handle errors instead of - // silently dropping. - _ = ep.handleListenSegment(ep.listenCtx, s) - s.DecRef() - } -} - -// start runs the main loop for a processor which is responsible for all TCP -// processing for TCP endpoints. -func (p *processor) start(wg *sync.WaitGroup) { - defer wg.Done() - defer p.sleeper.Done() - - for { - switch w := p.sleeper.Fetch(true); { - case w == &p.closeWaker: - return - case w == &p.pauseWaker: - if !p.epQ.empty() { - p.newEndpointWaker.Assert() - p.pauseWaker.Assert() - continue - } else { - p.pauseChan <- struct{}{} - <-p.resumeChan - } - case w == &p.newEndpointWaker: - for { - ep := p.epQ.dequeue() - if ep == nil { - break - } - if ep.segmentQueue.empty() { - continue - } - switch state := ep.EndpointState(); { - case state.connecting(): - handleConnecting(ep) - case state.connected() && state != StateTimeWait: - handleConnected(ep) - case state == StateTimeWait: - handleTimeWait(ep) - case state == StateListen: - handleListen(ep) - case state == StateError || state == StateClose: - // Try to redeliver any still queued - // packets to another endpoint or send a - // RST if it can't be delivered. - ep.mu.Lock() - if st := ep.EndpointState(); st == StateError || st == StateClose { - ep.drainClosingSegmentQueue() - } - ep.mu.Unlock() - default: - panic(fmt.Sprintf("unexpected tcp state in processor: %v", state)) - } - // If there are more segments to process and the - // endpoint lock is not held by user then - // requeue this endpoint for processing. - if !ep.segmentQueue.empty() && !ep.isOwnedByUser() { - p.epQ.enqueue(ep) - } - } - } - } -} - -// pause pauses the processor loop. -func (p *processor) pause() chan struct{} { - p.pauseWaker.Assert() - return p.pauseChan -} - -// resume resumes a previously paused loop. -// -// Precondition: Pause must have been called previously. -func (p *processor) resume() { - p.resumeChan <- struct{}{} -} - -// dispatcher manages a pool of TCP endpoint processors which are responsible -// for the processing of inbound segments. This fixed pool of processor -// goroutines do full tcp processing. The processor is selected based on the -// hash of the endpoint id to ensure that delivery for the same endpoint happens -// in-order. -// -// +stateify savable -type dispatcher struct { - processors []processor - wg sync.WaitGroup `state:"nosave"` - hasher jenkinsHasher - mu sync.Mutex `state:"nosave"` - // +checklocks:mu - paused bool - // +checklocks:mu - closed bool -} - -// init initializes a dispatcher and starts the main loop for all the processors -// owned by this dispatcher. -func (d *dispatcher) init(rng *rand.Rand, nProcessors int) { - d.close() - d.wait() - - d.mu.Lock() - defer d.mu.Unlock() - d.closed = false - d.processors = make([]processor, nProcessors) - d.hasher = jenkinsHasher{seed: rng.Uint32()} - for i := range d.processors { - p := &d.processors[i] - p.sleeper.AddWaker(&p.newEndpointWaker) - p.sleeper.AddWaker(&p.closeWaker) - p.sleeper.AddWaker(&p.pauseWaker) - p.pauseChan = make(chan struct{}) - p.resumeChan = make(chan struct{}) - d.wg.Add(1) - // NB: sleeper-waker registration must happen synchronously to avoid races - // with `close`. It's possible to pull all this logic into `start`, but - // that results in a heap-allocated function literal. - go p.start(&d.wg) - } -} - -// close closes a dispatcher and its processors. -func (d *dispatcher) close() { - d.mu.Lock() - d.closed = true - d.mu.Unlock() - for i := range d.processors { - d.processors[i].close() - } -} - -// wait waits for all processor goroutines to end. -func (d *dispatcher) wait() { - d.wg.Wait() -} - -// queuePacket queues an incoming packet to the matching tcp endpoint and -// also queues the endpoint to a processor queue for processing. -func (d *dispatcher) queuePacket(stackEP stack.TransportEndpoint, id stack.TransportEndpointID, clock tcpip.Clock, pkt *stack.PacketBuffer) { - d.mu.Lock() - closed := d.closed - d.mu.Unlock() - - if closed { - return - } - - ep := stackEP.(*Endpoint) - - s, err := newIncomingSegment(id, clock, pkt) - if err != nil { - ep.stack.Stats().TCP.InvalidSegmentsReceived.Increment() - ep.stats.ReceiveErrors.MalformedPacketsReceived.Increment() - return - } - defer s.DecRef() - - if !s.csumValid { - ep.stack.Stats().TCP.ChecksumErrors.Increment() - ep.stats.ReceiveErrors.ChecksumErrors.Increment() - return - } - - ep.stack.Stats().TCP.ValidSegmentsReceived.Increment() - ep.stats.SegmentsReceived.Increment() - if (s.flags & header.TCPFlagRst) != 0 { - ep.stack.Stats().TCP.ResetsReceived.Increment() - } - - if !ep.enqueueSegment(s) { - return - } - - // Only wakeup the processor if endpoint lock is not held by a user - // goroutine as endpoint.UnlockUser will wake up the processor if the - // segment queue is not empty. - if !ep.isOwnedByUser() { - d.selectProcessor(id).queueEndpoint(ep) - } -} - -// selectProcessor uses a hash of the transport endpoint ID to queue the -// endpoint to a specific processor. This is required to main TCP ordering as -// queueing the same endpoint to multiple processors can *potentially* result in -// out of order processing of incoming segments. It also ensures that a dispatcher -// evenly loads the processor goroutines. -func (d *dispatcher) selectProcessor(id stack.TransportEndpointID) *processor { - return &d.processors[d.hasher.hash(id)%uint32(len(d.processors))] -} - -// pause pauses a dispatcher and all its processor goroutines. -func (d *dispatcher) pause() { - d.mu.Lock() - d.paused = true - d.mu.Unlock() - for i := range d.processors { - <-d.processors[i].pause() - } -} - -// resume resumes a previously paused dispatcher and its processor goroutines. -// Calling resume on a dispatcher that was never paused is a no-op. -func (d *dispatcher) resume() { - d.mu.Lock() - - if !d.paused { - // If this was a restore run the stack is a new instance and - // it was never paused, so just return as there is nothing to - // resume. - d.mu.Unlock() - return - } - d.paused = false - d.mu.Unlock() - for i := range d.processors { - d.processors[i].resume() - } -} - -// jenkinsHasher contains state needed to for a jenkins hash. -// -// +stateify savable -type jenkinsHasher struct { - seed uint32 -} - -// hash hashes the provided TransportEndpointID using the jenkins hash -// algorithm. -func (j jenkinsHasher) hash(id stack.TransportEndpointID) uint32 { - var payload [4]byte - binary.LittleEndian.PutUint16(payload[0:], id.LocalPort) - binary.LittleEndian.PutUint16(payload[2:], id.RemotePort) - - h := jenkins.Sum32(j.seed) - h.Write(payload[:]) - h.Write(id.LocalAddress.AsSlice()) - h.Write(id.RemoteAddress.AsSlice()) - return h.Sum32() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/endpoint.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/endpoint.go deleted file mode 100644 index 5cd028b48a..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/endpoint.go +++ /dev/null @@ -1,3332 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "container/heap" - "fmt" - "io" - "math" - "runtime" - "strings" - "time" - - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/sleep" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/ports" - "gvisor.dev/gvisor/pkg/tcpip/seqnum" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/waiter" -) - -// EndpointState represents the state of a TCP endpoint. -type EndpointState tcpip.EndpointState - -// Endpoint states. Note that are represented in a netstack-specific manner and -// may not be meaningful externally. Specifically, they need to be translated to -// Linux's representation for these states if presented to userspace. -const ( - _ EndpointState = iota - // TCP protocol states in sync with the definitions in - // https://github.com/torvalds/linux/blob/7acac4b3196/include/net/tcp_states.h#L13 - StateEstablished - StateSynSent - StateSynRecv - StateFinWait1 - StateFinWait2 - StateTimeWait - StateClose - StateCloseWait - StateLastAck - StateListen - StateClosing - - // Endpoint states internal to netstack. - StateInitial - StateBound - StateConnecting // Connect() called, but the initial SYN hasn't been sent. - StateError -) - -const ( - // rcvAdvWndScale is used to split the available socket buffer into - // application buffer and the window to be advertised to the peer. This is - // currently hard coded to split the available space equally. - rcvAdvWndScale = 1 - - // SegOverheadFactor is used to multiply the value provided by the - // user on a SetSockOpt for setting the socket send/receive buffer sizes. - SegOverheadFactor = 2 -) - -type connDirectionState uint32 - -// Connection direction states used for directionState checks in endpoint struct -// to detect half-closed connection and deliver POLLRDHUP -const ( - connDirectionStateOpen connDirectionState = 0 - connDirectionStateRcvClosed connDirectionState = 1 - connDirectionStateSndClosed connDirectionState = 2 - connDirectionStateAll connDirectionState = connDirectionStateOpen | connDirectionStateRcvClosed | connDirectionStateSndClosed -) - -// connected returns true when s is one of the states representing an -// endpoint connected to a peer. -func (s EndpointState) connected() bool { - switch s { - case StateEstablished, StateFinWait1, StateFinWait2, StateTimeWait, StateCloseWait, StateLastAck, StateClosing: - return true - default: - return false - } -} - -// connecting returns true when s is one of the states representing a -// connection in progress, but not yet fully established. -func (s EndpointState) connecting() bool { - switch s { - case StateConnecting, StateSynSent, StateSynRecv: - return true - default: - return false - } -} - -// internal returns true when the state is netstack internal. -func (s EndpointState) internal() bool { - switch s { - case StateInitial, StateBound, StateConnecting, StateError: - return true - default: - return false - } -} - -// handshake returns true when s is one of the states representing an endpoint -// in the middle of a TCP handshake. -func (s EndpointState) handshake() bool { - switch s { - case StateSynSent, StateSynRecv: - return true - default: - return false - } -} - -// closed returns true when s is one of the states an endpoint transitions to -// when closed or when it encounters an error. This is distinct from a newly -// initialized endpoint that was never connected. -func (s EndpointState) closed() bool { - switch s { - case StateClose, StateError: - return true - default: - return false - } -} - -// String implements fmt.Stringer.String. -func (s EndpointState) String() string { - switch s { - case StateInitial: - return "INITIAL" - case StateBound: - return "BOUND" - case StateConnecting: - return "CONNECTING" - case StateError: - return "ERROR" - case StateEstablished: - return "ESTABLISHED" - case StateSynSent: - return "SYN-SENT" - case StateSynRecv: - return "SYN-RCVD" - case StateFinWait1: - return "FIN-WAIT1" - case StateFinWait2: - return "FIN-WAIT2" - case StateTimeWait: - return "TIME-WAIT" - case StateClose: - return "CLOSED" - case StateCloseWait: - return "CLOSE-WAIT" - case StateLastAck: - return "LAST-ACK" - case StateListen: - return "LISTEN" - case StateClosing: - return "CLOSING" - default: - panic("unreachable") - } -} - -// SACKInfo holds TCP SACK related information for a given endpoint. -// -// +stateify savable -type SACKInfo struct { - // Blocks is the maximum number of SACK blocks we track - // per endpoint. - Blocks [MaxSACKBlocks]header.SACKBlock - - // NumBlocks is the number of valid SACK blocks stored in the - // blocks array above. - NumBlocks int -} - -// ReceiveErrors collect segment receive errors within transport layer. -// -// +stateify savable -type ReceiveErrors struct { - tcpip.ReceiveErrors - - // SegmentQueueDropped is the number of segments dropped due to - // a full segment queue. - SegmentQueueDropped tcpip.StatCounter - - // ChecksumErrors is the number of segments dropped due to bad checksums. - ChecksumErrors tcpip.StatCounter - - // ListenOverflowSynDrop is the number of times the listen queue overflowed - // and a SYN was dropped. - ListenOverflowSynDrop tcpip.StatCounter - - // ListenOverflowAckDrop is the number of times the final ACK - // in the handshake was dropped due to overflow. - ListenOverflowAckDrop tcpip.StatCounter - - // ZeroRcvWindowState is the number of times we advertised - // a zero receive window when rcvQueue is full. - ZeroRcvWindowState tcpip.StatCounter - - // WantZeroWindow is the number of times we wanted to advertise a - // zero receive window but couldn't because it would have caused - // the receive window's right edge to shrink. - WantZeroRcvWindow tcpip.StatCounter -} - -// SendErrors collect segment send errors within the transport layer. -// -// +stateify savable -type SendErrors struct { - tcpip.SendErrors - - // SegmentSendToNetworkFailed is the number of TCP segments failed to be sent - // to the network endpoint. - SegmentSendToNetworkFailed tcpip.StatCounter - - // SynSendToNetworkFailed is the number of TCP SYNs failed to be sent - // to the network endpoint. - SynSendToNetworkFailed tcpip.StatCounter - - // Retransmits is the number of TCP segments retransmitted. - Retransmits tcpip.StatCounter - - // FastRetransmit is the number of segments retransmitted in fast - // recovery. - FastRetransmit tcpip.StatCounter - - // Timeouts is the number of times the RTO expired. - Timeouts tcpip.StatCounter -} - -// Stats holds statistics about the endpoint. -// -// +stateify savable -type Stats struct { - // SegmentsReceived is the number of TCP segments received that - // the transport layer successfully parsed. - SegmentsReceived tcpip.StatCounter - - // SegmentsSent is the number of TCP segments sent. - SegmentsSent tcpip.StatCounter - - // FailedConnectionAttempts is the number of times we saw Connect and - // Accept errors. - FailedConnectionAttempts tcpip.StatCounter - - // ReceiveErrors collects segment receive errors within the - // transport layer. - ReceiveErrors ReceiveErrors - - // ReadErrors collects segment read errors from an endpoint read call. - ReadErrors tcpip.ReadErrors - - // SendErrors collects segment send errors within the transport layer. - SendErrors SendErrors - - // WriteErrors collects segment write errors from an endpoint write call. - WriteErrors tcpip.WriteErrors -} - -// IsEndpointStats is an empty method to implement the tcpip.EndpointStats -// marker interface. -func (*Stats) IsEndpointStats() {} - -// sndQueueInfo implements a send queue. -// -// +stateify savable -type sndQueueInfo struct { - sndQueueMu sync.Mutex `state:"nosave"` - stack.TCPSndBufState - - // sndWaker is used to signal the protocol goroutine when there may be - // segments that need to be sent. - sndWaker sleep.Waker `state:"manual"` -} - -// CloneState clones sq into other. It is not thread safe -func (sq *sndQueueInfo) CloneState(other *stack.TCPSndBufState) { - other.SndBufSize = sq.SndBufSize - other.SndBufUsed = sq.SndBufUsed - other.SndClosed = sq.SndClosed - other.PacketTooBigCount = sq.PacketTooBigCount - other.SndMTU = sq.SndMTU - other.AutoTuneSndBufDisabled = atomicbitops.FromUint32(sq.AutoTuneSndBufDisabled.RacyLoad()) -} - -// Endpoint represents a TCP endpoint. This struct serves as the interface -// between users of the endpoint and the protocol implementation; it is legal to -// have concurrent goroutines make calls into the endpoint, they are properly -// synchronized. The protocol implementation, however, runs in a single -// goroutine. -// -// Each endpoint has a few mutexes: -// -// e.mu -> Primary mutex for an endpoint must be held for all operations except -// in e.Readiness where acquiring it will result in a deadlock in epoll -// implementation. -// -// The following three mutexes can be acquired independent of e.mu but if -// acquired with e.mu then e.mu must be acquired first. -// -// e.acceptMu -> Protects e.acceptQueue. -// e.rcvQueueMu -> Protects e.rcvQueue's associated fields but not e.rcvQueue -// itself. -// e.sndQueueMu -> Protects the e.sndQueue and associated fields. -// e.lastErrorMu -> Protects the lastError field. -// -// LOCKING/UNLOCKING of the endpoint. The locking of an endpoint is different -// based on the context in which the lock is acquired. In the syscall context -// e.LockUser/e.UnlockUser should be used and when doing background processing -// e.mu.Lock/e.mu.Unlock should be used. The distinction is described below -// in brief. -// -// The reason for this locking behaviour is to avoid wakeups to handle packets. -// In cases where the endpoint is already locked the background processor can -// queue the packet up and go its merry way and the lock owner will eventually -// process the backlog when releasing the lock. Similarly when acquiring the -// lock from say a syscall goroutine we can implement a bit of spinning if we -// know that the lock is not held by another syscall goroutine. Background -// processors should never hold the lock for long and we can avoid an expensive -// sleep/wakeup by spinning for a shortwhile. -// -// For more details please see the detailed documentation on -// e.LockUser/e.UnlockUser methods. -// -// +stateify savable -type Endpoint struct { - stack.TCPEndpointStateInner - stack.TransportEndpointInfo - tcpip.DefaultSocketOptionsHandler - - // EndpointEntry is used to queue endpoints for processing to the - // a given tcp processor goroutine. - // - // Precondition: epQueue.mu must be held to read/write this field.. - endpointEntry `state:"nosave"` - - // pendingProcessingMu protects pendingProcessing. - pendingProcessingMu sync.Mutex `state:"nosave"` - - // pendingProcessing is true if this endpoint is queued for processing - // to a TCP processor. - // +checklocks:pendingProcessingMu - pendingProcessing bool `state:"nosave"` - - // The following fields are initialized at creation time and do not - // change throughout the lifetime of the endpoint. - stack *stack.Stack `state:"manual"` - protocol *protocol `state:"manual"` - waiterQueue *waiter.Queue `state:"wait"` - - // hardError is meaningful only when state is stateError. It stores the - // error to be returned when read/write syscalls are called and the - // endpoint is in this state. hardError is protected by endpoint mu. - hardError tcpip.Error - - // lastError represents the last error that the endpoint reported; - // access to it is protected by the following mutex. - lastErrorMu sync.Mutex `state:"nosave"` - lastError tcpip.Error - - rcvQueueMu sync.Mutex `state:"nosave"` - - // +checklocks:rcvQueueMu - stack.TCPRcvBufState - - // rcvMemUsed tracks the total amount of memory in use by received segments - // held in rcvQueue, pendingRcvdSegments and the segment queue. This is used to - // compute the window and the actual available buffer space. This is distinct - // from rcvBufUsed above which is the actual number of payload bytes held in - // the buffer not including any segment overheads. - rcvMemUsed atomicbitops.Int32 - - // mu protects all endpoint fields unless documented otherwise. mu must - // be acquired before interacting with the endpoint fields. - // - // During handshake, mu is locked by the protocol listen goroutine and - // released by the handshake completion goroutine. - mu sync.CrossGoroutineMutex `state:"nosave"` - ownedByUser atomicbitops.Uint32 - - // rcvQueue is the queue for ready-for-delivery segments. - // - // +checklocks:mu - rcvQueue segmentList `state:"wait"` - - // state must be read/set using the EndpointState()/setEndpointState() - // methods. - state atomicbitops.Uint32 `state:".(EndpointState)"` - - // connectionDirectionState holds current state of send and receive, - // accessed atomically - connectionDirectionState atomicbitops.Uint32 - - // origEndpointState is only used during a restore phase to save the - // endpoint state at restore time as the socket is moved to it's correct - // state. - origEndpointState uint32 `state:"nosave"` - - isPortReserved bool `state:"manual"` - isRegistered bool `state:"manual"` - boundNICID tcpip.NICID - route *stack.Route `state:"manual"` - ipv4TTL uint8 - ipv6HopLimit int16 - isConnectNotified bool - - // h stores a reference to the current handshake state if the endpoint is in - // the SYN-SENT or SYN-RECV states, in which case endpoint == endpoint.h.ep. - // nil otherwise. - // +checklocks:mu - h *handshake - - // portFlags stores the current values of port related flags. - portFlags ports.Flags - - // Values used to reserve a port or register a transport endpoint - // (which ever happens first). - boundBindToDevice tcpip.NICID - boundPortFlags ports.Flags - boundDest tcpip.FullAddress - - // effectiveNetProtos contains the network protocols actually in use. In - // most cases it will only contain "netProto", but in cases like IPv6 - // endpoints with v6only set to false, this could include multiple - // protocols (e.g., IPv6 and IPv4) or a single different protocol (e.g., - // IPv4 when IPv6 endpoint is bound or connected to an IPv4 mapped - // address). - effectiveNetProtos []tcpip.NetworkProtocolNumber - - // recentTSTime is the unix time when we last updated - // TCPEndpointStateInner.RecentTS. - recentTSTime tcpip.MonotonicTime - - // shutdownFlags represent the current shutdown state of the endpoint. - shutdownFlags tcpip.ShutdownFlags - - // tcpRecovery is the loss recovery algorithm used by TCP. - tcpRecovery tcpip.TCPRecovery - - // sack holds TCP SACK related information for this endpoint. - sack SACKInfo - - // delay enables Nagle's algorithm. - // - // delay is a boolean (0 is false) and must be accessed atomically. - delay uint32 - - // scoreboard holds TCP SACK Scoreboard information for this endpoint. - scoreboard *SACKScoreboard - - // segmentQueue is used to hand received segments to the protocol - // goroutine. Segments are queued as long as the queue is not full, - // and dropped when it is. - segmentQueue segmentQueue `state:"wait"` - - // userMSS if non-zero is the MSS value explicitly set by the user - // for this endpoint using the TCP_MAXSEG setsockopt. - userMSS uint16 - - // maxSynRetries is the maximum number of SYN retransmits that TCP should - // send before aborting the attempt to connect. It cannot exceed 255. - // - // NOTE: This is currently a no-op and does not change the SYN - // retransmissions. - maxSynRetries uint8 - - // windowClamp is used to bound the size of the advertised window to - // this value. - windowClamp uint32 - - // sndQueueInfo contains the implementation of the endpoint's send queue. - sndQueueInfo sndQueueInfo - - // cc stores the name of the Congestion Control algorithm to use for - // this endpoint. - cc tcpip.CongestionControlOption - - // keepalive manages TCP keepalive state. When the connection is idle - // (no data sent or received) for keepaliveIdle, we start sending - // keepalives every keepalive.interval. If we send keepalive.count - // without hearing a response, the connection is closed. - keepalive keepalive - - // userTimeout if non-zero specifies a user specified timeout for - // a connection w/ pending data to send. A connection that has pending - // unacked data will be forcibily aborted if the timeout is reached - // without any data being acked. - userTimeout time.Duration - - // deferAccept if non-zero specifies a user specified time during - // which the final ACK of a handshake will be dropped provided the - // ACK is a bare ACK and carries no data. If the timeout is crossed then - // the bare ACK is accepted and the connection is delivered to the - // listener. - deferAccept time.Duration - - // acceptMu protects accepQueue - acceptMu sync.Mutex `state:"nosave"` - - // acceptQueue is used by a listening endpoint to send newly accepted - // connections to the endpoint so that they can be read by Accept() - // calls. - // - // +checklocks:acceptMu - acceptQueue acceptQueue - - // The following are only used from the protocol goroutine, and - // therefore don't need locks to protect them. - rcv *receiver `state:"wait"` - snd *sender `state:"wait"` - - // The goroutine drain completion notification channel. - drainDone chan struct{} `state:"nosave"` - - // The goroutine undrain notification channel. This is currently used as - // a way to block the worker goroutines. Today nothing closes/writes - // this channel and this causes any goroutines waiting on this to just - // block. This is used during save/restore to prevent worker goroutines - // from mutating state as it's being saved. - undrain chan struct{} `state:"nosave"` - - // probe if not nil is invoked on every received segment. It is passed - // a copy of the current state of the endpoint. - probe stack.TCPProbeFunc `state:"nosave"` - - // The following are only used to assist the restore run to re-connect. - connectingAddress tcpip.Address - - // amss is the advertised MSS to the peer by this endpoint. - amss uint16 - - // sendTOS represents IPv4 TOS or IPv6 TrafficClass, - // applied while sending packets. Defaults to 0 as on Linux. - sendTOS uint8 - - gso stack.GSO - - stats Stats - - // tcpLingerTimeout is the maximum amount of a time a socket - // a socket stays in TIME_WAIT state before being marked - // closed. - tcpLingerTimeout time.Duration - - // closed indicates that the user has called closed on the - // endpoint and at this point the endpoint is only around - // to complete the TCP shutdown. - closed bool - - // txHash is the transport layer hash to be set on outbound packets - // emitted by this endpoint. - txHash uint32 - - // owner is used to get uid and gid of the packet. - owner tcpip.PacketOwner - - // ops is used to get socket level options. - ops tcpip.SocketOptions - - // lastOutOfWindowAckTime is the time at which the an ACK was sent in response - // to an out of window segment being received by this endpoint. - lastOutOfWindowAckTime tcpip.MonotonicTime - - // finWait2Timer is used to reap orphaned sockets in FIN-WAIT-2 where the peer - // is yet to send a FIN but on our end the socket is fully closed i.e. endpoint.Close() - // has been called on the socket. This timer is not started for sockets that - // are waiting for a peer FIN but are not closed. - finWait2Timer tcpip.Timer `state:"nosave"` - - // timeWaitTimer is used to reap a socket once a socket has been in TIME-WAIT state - // for tcp.DefaultTCPTimeWaitTimeout seconds. - timeWaitTimer tcpip.Timer `state:"nosave"` - - // listenCtx is used by listening endpoints to store state used while listening for - // connections. Nil otherwise. - listenCtx *listenContext `state:"nosave"` - - // limRdr is reused to avoid allocations. - // - // +checklocks:mu - limRdr *io.LimitedReader `state:"nosave"` - - // pmtud is the PMTUD strategy to use. - // - // +checklocks:mu - pmtud tcpip.PMTUDStrategy -} - -// calculateAdvertisedMSS calculates the MSS to advertise. -// -// If userMSS is non-zero and is not greater than the maximum possible MSS for -// r, it will be used; otherwise, the maximum possible MSS will be used. -func calculateAdvertisedMSS(userMSS uint16, r *stack.Route) uint16 { - // The maximum possible MSS is dependent on the route. - // TODO(b/143359391): Respect TCP Min and Max size. - maxMSS := uint16(r.MTU() - header.TCPMinimumSize) - - if userMSS != 0 && userMSS < maxMSS { - return userMSS - } - - return maxMSS -} - -// isOwnedByUser() returns true if the endpoint lock is currently -// held by a user(syscall) goroutine. -func (e *Endpoint) isOwnedByUser() bool { - return e.ownedByUser.Load() == 1 -} - -// LockUser tries to lock e.mu and if it fails it will check if the lock is held -// by another syscall goroutine. If yes, then it will goto sleep waiting for the -// lock to be released, if not then it will spin till it acquires the lock or -// another syscall goroutine acquires it in which case it will goto sleep as -// described above. -// -// The assumption behind spinning here being that background packet processing -// should not be holding the lock for long and spinning reduces latency as we -// avoid an expensive sleep/wakeup of the syscall goroutine). -// +checklocksacquire:e.mu -func (e *Endpoint) LockUser() { - const iterations = 5 - for i := 0; i < iterations; i++ { - // Try first if the sock is locked then check if it's owned - // by another user goroutine if not then we spin, otherwise - // we just go to sleep on the Lock() and wait. - if !e.TryLock() { - // If socket is owned by the user then just go to sleep - // as the lock could be held for a reasonably long time. - if e.ownedByUser.Load() == 1 { - e.mu.Lock() - e.ownedByUser.Store(1) - return - } - // Spin but don't yield the processor since the lower half - // should yield the lock soon. - continue - } - e.ownedByUser.Store(1) - return - } - - for i := 0; i < iterations; i++ { - // Try first if the sock is locked then check if it's owned - // by another user goroutine if not then we spin, otherwise - // we just go to sleep on the Lock() and wait. - if !e.TryLock() { - // If socket is owned by the user then just go to sleep - // as the lock could be held for a reasonably long time. - if e.ownedByUser.Load() == 1 { - e.mu.Lock() - e.ownedByUser.Store(1) - return - } - // Spin but yield the processor since the lower half - // should yield the lock soon. - runtime.Gosched() - continue - } - e.ownedByUser.Store(1) - return - } - - // Finally just give up and wait for the Lock. - e.mu.Lock() - e.ownedByUser.Store(1) -} - -// UnlockUser will check if there are any segments already queued for processing -// and wake up a processor goroutine to process them before unlocking e.mu. -// This is required because we when packets arrive and endpoint lock is already -// held then such packets are queued up to be processed. -// -// Precondition: e.LockUser() must have been called before calling e.UnlockUser() -// +checklocksrelease:e.mu -func (e *Endpoint) UnlockUser() { - // Lock segment queue before checking so that we avoid a race where - // segments can be queued between the time we check if queue is empty - // and actually unlock the endpoint mutex. - e.segmentQueue.mu.Lock() - if e.segmentQueue.emptyLocked() { - if e.ownedByUser.Swap(0) != 1 { - panic("e.UnlockUser() called without calling e.LockUser()") - } - e.mu.Unlock() - e.segmentQueue.mu.Unlock() - return - } - e.segmentQueue.mu.Unlock() - - // Since we are waking the processor goroutine here just unlock - // and let it process the queued segments. - if e.ownedByUser.Swap(0) != 1 { - panic("e.UnlockUser() called without calling e.LockUser()") - } - processor := e.protocol.dispatcher.selectProcessor(e.ID) - e.mu.Unlock() - - // Wake up the processor for this endpoint to process any queued - // segments after releasing the lock to avoid the case where if the - // processor goroutine starts running before we release the lock here - // then it will fail to process as TryLock() will fail. - processor.queueEndpoint(e) - return -} - -// StopWork halts packet processing. Only to be used in tests. -// +checklocksacquire:e.mu -func (e *Endpoint) StopWork() { - e.mu.Lock() -} - -// ResumeWork resumes packet processing. Only to be used in tests. -// +checklocksrelease:e.mu -func (e *Endpoint) ResumeWork() { - e.mu.Unlock() -} - -// AssertLockHeld forces the checklocks analyzer to consider e.mu held. This is -// used in places where we know that e.mu is held, but checklocks does not, -// which can happen when creating new locked objects. You must pass the known -// locked endpoint to this function and it must be the same as the caller -// endpoint. -// TODO(b/226403629): Remove this function once checklocks understands local -// variable locks. -// +checklocks:locked.mu -// +checklocksacquire:e.mu -func (e *Endpoint) AssertLockHeld(locked *Endpoint) { - if e != locked { - panic("AssertLockHeld failed: locked endpoint != asserting endpoint") - } -} - -// TryLock is a helper that calls TryLock on the endpoint's mutex and -// adds the necessary checklocks annotations. -// TODO(b/226403629): Remove this once checklocks understands TryLock. -// +checklocksacquire:e.mu -func (e *Endpoint) TryLock() bool { - if e.mu.TryLock() { - return true // +checklocksforce - } - return false // +checklocksignore -} - -// setEndpointState updates the state of the endpoint to state atomically. This -// method is unexported as the only place we should update the state is in this -// package but we allow the state to be read freely without holding e.mu. -// -// +checklocks:e.mu -func (e *Endpoint) setEndpointState(state EndpointState) { - oldstate := EndpointState(e.state.Swap(uint32(state))) - switch state { - case StateEstablished: - e.stack.Stats().TCP.CurrentEstablished.Increment() - e.stack.Stats().TCP.CurrentConnected.Increment() - case StateError: - fallthrough - case StateClose: - if oldstate == StateCloseWait || oldstate == StateEstablished { - e.stack.Stats().TCP.EstablishedResets.Increment() - } - if oldstate.connected() { - e.stack.Stats().TCP.CurrentConnected.Decrement() - } - fallthrough - default: - if oldstate == StateEstablished { - e.stack.Stats().TCP.CurrentEstablished.Decrement() - } - } -} - -// EndpointState returns the current state of the endpoint. -func (e *Endpoint) EndpointState() EndpointState { - return EndpointState(e.state.Load()) -} - -// setRecentTimestamp sets the recentTS field to the provided value. -func (e *Endpoint) setRecentTimestamp(recentTS uint32) { - e.RecentTS = recentTS - e.recentTSTime = e.stack.Clock().NowMonotonic() -} - -// recentTimestamp returns the value of the recentTS field. -func (e *Endpoint) recentTimestamp() uint32 { - return e.RecentTS -} - -// TODO(gvisor.dev/issue/6974): Remove once tcp endpoints are composed with a -// network.Endpoint, which also defines this function. -func calculateTTL(route *stack.Route, ipv4TTL uint8, ipv6HopLimit int16) uint8 { - switch netProto := route.NetProto(); netProto { - case header.IPv4ProtocolNumber: - if ipv4TTL == tcpip.UseDefaultIPv4TTL { - return route.DefaultTTL() - } - return ipv4TTL - case header.IPv6ProtocolNumber: - if ipv6HopLimit == tcpip.UseDefaultIPv6HopLimit { - return route.DefaultTTL() - } - return uint8(ipv6HopLimit) - default: - panic(fmt.Sprintf("invalid protocol number = %d", netProto)) - } -} - -// keepalive is a synchronization wrapper used to appease stateify. See the -// comment in endpoint, where it is used. -// -// +stateify savable -type keepalive struct { - sync.Mutex `state:"nosave"` - idle time.Duration - interval time.Duration - count int - unacked int - // should never be a zero timer if the endpoint is not closed. - timer timer `state:"nosave"` - waker sleep.Waker `state:"nosave"` -} - -func newEndpoint(s *stack.Stack, protocol *protocol, netProto tcpip.NetworkProtocolNumber, waiterQueue *waiter.Queue) *Endpoint { - e := &Endpoint{ - stack: s, - protocol: protocol, - TransportEndpointInfo: stack.TransportEndpointInfo{ - NetProto: netProto, - TransProto: header.TCPProtocolNumber, - }, - sndQueueInfo: sndQueueInfo{ - TCPSndBufState: stack.TCPSndBufState{ - SndMTU: math.MaxInt32, - }, - }, - waiterQueue: waiterQueue, - state: atomicbitops.FromUint32(uint32(StateInitial)), - keepalive: keepalive{ - idle: DefaultKeepaliveIdle, - interval: DefaultKeepaliveInterval, - count: DefaultKeepaliveCount, - }, - ipv4TTL: tcpip.UseDefaultIPv4TTL, - ipv6HopLimit: tcpip.UseDefaultIPv6HopLimit, - // txHash only determines which outgoing queue to use, so - // InsecureRNG is fine. - txHash: s.InsecureRNG().Uint32(), - windowClamp: DefaultReceiveBufferSize, - maxSynRetries: DefaultSynRetries, - limRdr: &io.LimitedReader{}, - } - e.ops.InitHandler(e, e.stack, GetTCPSendBufferLimits, GetTCPReceiveBufferLimits) - e.ops.SetMulticastLoop(true) - e.ops.SetQuickAck(true) - e.ops.SetSendBufferSize(DefaultSendBufferSize, false /* notify */) - e.ops.SetReceiveBufferSize(DefaultReceiveBufferSize, false /* notify */) - - var ss tcpip.TCPSendBufferSizeRangeOption - if err := s.TransportProtocolOption(ProtocolNumber, &ss); err == nil { - e.ops.SetSendBufferSize(int64(ss.Default), false /* notify */) - } - - var rs tcpip.TCPReceiveBufferSizeRangeOption - if err := s.TransportProtocolOption(ProtocolNumber, &rs); err == nil { - e.ops.SetReceiveBufferSize(int64(rs.Default), false /* notify */) - } - - var cs tcpip.CongestionControlOption - if err := s.TransportProtocolOption(ProtocolNumber, &cs); err == nil { - e.cc = cs - } - - var mrb tcpip.TCPModerateReceiveBufferOption - if err := s.TransportProtocolOption(ProtocolNumber, &mrb); err == nil { - e.RcvAutoParams.Disabled = !bool(mrb) - } - - var de tcpip.TCPDelayEnabled - if err := s.TransportProtocolOption(ProtocolNumber, &de); err == nil && de { - e.ops.SetDelayOption(true) - } - - var tcpLT tcpip.TCPLingerTimeoutOption - if err := s.TransportProtocolOption(ProtocolNumber, &tcpLT); err == nil { - e.tcpLingerTimeout = time.Duration(tcpLT) - } - - var synRetries tcpip.TCPSynRetriesOption - if err := s.TransportProtocolOption(ProtocolNumber, &synRetries); err == nil { - e.maxSynRetries = uint8(synRetries) - } - - if p := s.GetTCPProbe(); p != nil { - e.probe = p - } - - e.segmentQueue.ep = e - - // TODO(https://gvisor.dev/issues/7493): Defer creating the timer until TCP connection becomes - // established. - e.keepalive.timer.init(e.stack.Clock(), timerHandler(e, e.keepaliveTimerExpired)) - - return e -} - -// Readiness returns the current readiness of the endpoint. For example, if -// waiter.EventIn is set, the endpoint is immediately readable. -func (e *Endpoint) Readiness(mask waiter.EventMask) waiter.EventMask { - result := waiter.EventMask(0) - - switch e.EndpointState() { - case StateInitial, StateBound: - // This prevents blocking of new sockets which are not - // connected when SO_LINGER is set. - result |= waiter.EventHUp - - case StateConnecting, StateSynSent, StateSynRecv: - // Ready for nothing. - - case StateClose, StateError, StateTimeWait: - // Ready for anything. - result = mask - - case StateListen: - // Check if there's anything in the accepted queue. - if (mask & waiter.ReadableEvents) != 0 { - e.acceptMu.Lock() - if e.acceptQueue.endpoints.Len() != 0 { - result |= waiter.ReadableEvents - } - e.acceptMu.Unlock() - } - } - if e.EndpointState().connected() { - // Determine if the endpoint is writable if requested. - if (mask & waiter.WritableEvents) != 0 { - e.sndQueueInfo.sndQueueMu.Lock() - sndBufSize := e.getSendBufferSize() - if e.sndQueueInfo.SndClosed || e.sndQueueInfo.SndBufUsed < sndBufSize { - result |= waiter.WritableEvents - } - if e.sndQueueInfo.SndClosed { - e.updateConnDirectionState(connDirectionStateSndClosed) - } - e.sndQueueInfo.sndQueueMu.Unlock() - } - - // Determine if the endpoint is readable if requested. - if (mask & waiter.ReadableEvents) != 0 { - e.rcvQueueMu.Lock() - if e.RcvBufUsed > 0 || e.RcvClosed { - result |= waiter.ReadableEvents - } - if e.RcvClosed { - e.updateConnDirectionState(connDirectionStateRcvClosed) - } - e.rcvQueueMu.Unlock() - } - } - - // Determine whether endpoint is half-closed with rcv shutdown - if e.connDirectionState() == connDirectionStateRcvClosed { - result |= waiter.EventRdHUp - } - - return result -} - -// Purging pending rcv segments is only necessary on RST. -func (e *Endpoint) purgePendingRcvQueue() { - if e.rcv != nil { - for e.rcv.pendingRcvdSegments.Len() > 0 { - s := heap.Pop(&e.rcv.pendingRcvdSegments).(*segment) - s.DecRef() - } - } -} - -// +checklocks:e.mu -func (e *Endpoint) purgeReadQueue() { - if e.rcv != nil { - e.rcvQueueMu.Lock() - defer e.rcvQueueMu.Unlock() - for { - s := e.rcvQueue.Front() - if s == nil { - break - } - e.rcvQueue.Remove(s) - s.DecRef() - } - e.RcvBufUsed = 0 - } -} - -// +checklocks:e.mu -func (e *Endpoint) purgeWriteQueue() { - if e.snd != nil { - e.sndQueueInfo.sndQueueMu.Lock() - defer e.sndQueueInfo.sndQueueMu.Unlock() - e.snd.updateWriteNext(nil) - for { - s := e.snd.writeList.Front() - if s == nil { - break - } - e.snd.writeList.Remove(s) - s.DecRef() - } - e.sndQueueInfo.SndBufUsed = 0 - e.sndQueueInfo.SndClosed = true - } -} - -// Abort implements stack.TransportEndpoint.Abort. -func (e *Endpoint) Abort() { - defer e.drainClosingSegmentQueue() - e.LockUser() - defer e.UnlockUser() - defer e.purgeReadQueue() - // Reset all connected endpoints. - switch state := e.EndpointState(); { - case state.connected(): - e.resetConnectionLocked(&tcpip.ErrAborted{}) - e.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) - return - } - e.closeLocked() -} - -// Close puts the endpoint in a closed state and frees all resources associated -// with it. It must be called only once and with no other concurrent calls to -// the endpoint. -func (e *Endpoint) Close() { - e.LockUser() - if e.closed { - e.UnlockUser() - return - } - - // We always want to purge the read queue, but do so after the checks in - // shutdownLocked. - e.closeLocked() - e.purgeReadQueue() - if e.EndpointState() == StateClose || e.EndpointState() == StateError { - // It should be safe to purge the read queue now as the endpoint - // is now closed or in an error state and further reads are not - // permitted. - e.UnlockUser() - e.drainClosingSegmentQueue() - e.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) - return - } - e.UnlockUser() -} - -// +checklocks:e.mu -func (e *Endpoint) closeLocked() { - linger := e.SocketOptions().GetLinger() - if linger.Enabled && linger.Timeout == 0 { - s := e.EndpointState() - isResetState := s == StateEstablished || s == StateCloseWait || s == StateFinWait1 || s == StateFinWait2 || s == StateSynRecv - if isResetState { - // Close the endpoint without doing full shutdown and - // send a RST. - e.resetConnectionLocked(&tcpip.ErrConnectionAborted{}) - return - } - } - - // Issue a shutdown so that the peer knows we won't send any more data - // if we're connected, or stop accepting if we're listening. - e.shutdownLocked(tcpip.ShutdownWrite | tcpip.ShutdownRead) - e.closeNoShutdownLocked() -} - -// closeNoShutdown closes the endpoint without doing a full shutdown. -// +checklocks:e.mu -func (e *Endpoint) closeNoShutdownLocked() { - // For listening sockets, we always release ports inline so that they - // are immediately available for reuse after Close() is called. If also - // registered, we unregister as well otherwise the next user would fail - // in Listen() when trying to register. - if e.EndpointState() == StateListen && e.isPortReserved { - if e.isRegistered { - e.stack.StartTransportEndpointCleanup(e.effectiveNetProtos, ProtocolNumber, e.TransportEndpointInfo.ID, e, e.boundPortFlags, e.boundBindToDevice) - e.isRegistered = false - } - - portRes := ports.Reservation{ - Networks: e.effectiveNetProtos, - Transport: ProtocolNumber, - Addr: e.TransportEndpointInfo.ID.LocalAddress, - Port: e.TransportEndpointInfo.ID.LocalPort, - Flags: e.boundPortFlags, - BindToDevice: e.boundBindToDevice, - Dest: e.boundDest, - } - e.stack.ReleasePort(portRes) - e.isPortReserved = false - e.boundBindToDevice = 0 - e.boundPortFlags = ports.Flags{} - e.boundDest = tcpip.FullAddress{} - } - - // Mark endpoint as closed. - e.closed = true - tcpip.AddDanglingEndpoint(e) - - eventMask := waiter.ReadableEvents | waiter.WritableEvents - - switch e.EndpointState() { - case StateInitial, StateBound, StateListen: - e.setEndpointState(StateClose) - fallthrough - case StateClose, StateError: - eventMask |= waiter.EventHUp - e.cleanupLocked() - case StateConnecting, StateSynSent, StateSynRecv: - // Abort the handshake and set the error. - // Notify that the endpoint is closed. - eventMask |= waiter.EventHUp - e.handshakeFailed(&tcpip.ErrAborted{}) - // Notify that the endpoint is closed. - eventMask |= waiter.EventHUp - case StateFinWait2: - // The socket has been closed and we are in FIN-WAIT-2 so start - // the FIN-WAIT-2 timer. - if e.finWait2Timer == nil { - e.finWait2Timer = e.stack.Clock().AfterFunc(e.tcpLingerTimeout, e.finWait2TimerExpired) - } - } - - e.waiterQueue.Notify(eventMask) -} - -// closePendingAcceptableConnections closes all connections that have completed -// handshake but not yet been delivered to the application. -func (e *Endpoint) closePendingAcceptableConnectionsLocked() { - e.acceptMu.Lock() - - pendingEndpoints := e.acceptQueue.pendingEndpoints - e.acceptQueue.pendingEndpoints = nil - - completedEndpoints := make([]*Endpoint, 0, e.acceptQueue.endpoints.Len()) - for n := e.acceptQueue.endpoints.Front(); n != nil; n = n.Next() { - completedEndpoints = append(completedEndpoints, n.Value.(*Endpoint)) - } - e.acceptQueue.endpoints.Init() - e.acceptQueue.capacity = 0 - e.acceptMu.Unlock() - - // Close any endpoints in SYN-RCVD state. - for n := range pendingEndpoints { - n.Abort() - } - - // Reset all connections that are waiting to be accepted. - for _, n := range completedEndpoints { - n.Abort() - } -} - -// cleanupLocked frees all resources associated with the endpoint. -// +checklocks:e.mu -func (e *Endpoint) cleanupLocked() { - if e.snd != nil { - e.snd.resendTimer.cleanup() - e.snd.probeTimer.cleanup() - e.snd.reorderTimer.cleanup() - e.snd.corkTimer.cleanup() - } - - if e.finWait2Timer != nil { - e.finWait2Timer.Stop() - } - - if e.timeWaitTimer != nil { - e.timeWaitTimer.Stop() - } - - // Close all endpoints that might have been accepted by TCP but not by - // the client. - e.closePendingAcceptableConnectionsLocked() - e.keepalive.timer.cleanup() - - if e.isRegistered { - e.stack.StartTransportEndpointCleanup(e.effectiveNetProtos, ProtocolNumber, e.TransportEndpointInfo.ID, e, e.boundPortFlags, e.boundBindToDevice) - e.isRegistered = false - } - - if e.isPortReserved { - portRes := ports.Reservation{ - Networks: e.effectiveNetProtos, - Transport: ProtocolNumber, - Addr: e.TransportEndpointInfo.ID.LocalAddress, - Port: e.TransportEndpointInfo.ID.LocalPort, - Flags: e.boundPortFlags, - BindToDevice: e.boundBindToDevice, - Dest: e.boundDest, - } - e.stack.ReleasePort(portRes) - e.isPortReserved = false - } - e.boundBindToDevice = 0 - e.boundPortFlags = ports.Flags{} - e.boundDest = tcpip.FullAddress{} - - if e.route != nil { - e.route.Release() - e.route = nil - } - - e.purgeWriteQueue() - // Only purge the read queue here if the socket is fully closed by the - // user. - if e.closed { - e.purgeReadQueue() - } - e.stack.CompleteTransportEndpointCleanup(e) - tcpip.DeleteDanglingEndpoint(e) -} - -// wndFromSpace returns the window that we can advertise based on the available -// receive buffer space. -func wndFromSpace(space int) int { - return space >> rcvAdvWndScale -} - -// initialReceiveWindow returns the initial receive window to advertise in the -// SYN/SYN-ACK. -func (e *Endpoint) initialReceiveWindow() int { - rcvWnd := wndFromSpace(e.receiveBufferAvailable()) - if rcvWnd > math.MaxUint16 { - rcvWnd = math.MaxUint16 - } - - // Use the user supplied MSS, if available. - routeWnd := InitialCwnd * int(calculateAdvertisedMSS(e.userMSS, e.route)) * 2 - if rcvWnd > routeWnd { - rcvWnd = routeWnd - } - rcvWndScale := e.rcvWndScaleForHandshake() - - // Round-down the rcvWnd to a multiple of wndScale. This ensures that the - // window offered in SYN won't be reduced due to the loss of precision if - // window scaling is enabled after the handshake. - rcvWnd = (rcvWnd >> uint8(rcvWndScale)) << uint8(rcvWndScale) - - // Ensure we can always accept at least 1 byte if the scale specified - // was too high for the provided rcvWnd. - if rcvWnd == 0 { - rcvWnd = 1 - } - - return rcvWnd -} - -// ModerateRecvBuf adjusts the receive buffer and the advertised window -// based on the number of bytes copied to userspace. -func (e *Endpoint) ModerateRecvBuf(copied int) { - e.LockUser() - defer e.UnlockUser() - - sendNonZeroWindowUpdate := false - - e.rcvQueueMu.Lock() - if e.RcvAutoParams.Disabled { - e.rcvQueueMu.Unlock() - return - } - now := e.stack.Clock().NowMonotonic() - if rtt := e.RcvAutoParams.RTT; rtt == 0 || now.Sub(e.RcvAutoParams.MeasureTime) < rtt { - e.RcvAutoParams.CopiedBytes += copied - e.rcvQueueMu.Unlock() - return - } - prevRTTCopied := e.RcvAutoParams.CopiedBytes + copied - prevCopied := e.RcvAutoParams.PrevCopiedBytes - rcvWnd := 0 - if prevRTTCopied > prevCopied { - // The minimal receive window based on what was copied by the app - // in the immediate preceding RTT and some extra buffer for 16 - // segments to account for variations. - // We multiply by 2 to account for packet losses. - rcvWnd = prevRTTCopied*2 + 16*int(e.amss) - - // Scale for slow start based on bytes copied in this RTT vs previous. - grow := (rcvWnd * (prevRTTCopied - prevCopied)) / prevCopied - - // Multiply growth factor by 2 again to account for sender being - // in slow-start where the sender grows it's congestion window - // by 100% per RTT. - rcvWnd += grow * 2 - - // Make sure auto tuned buffer size can always receive upto 2x - // the initial window of 10 segments. - if minRcvWnd := int(e.amss) * InitialCwnd * 2; rcvWnd < minRcvWnd { - rcvWnd = minRcvWnd - } - - // Cap the auto tuned buffer size by the maximum permissible - // receive buffer size. - if max := e.maxReceiveBufferSize(); rcvWnd > max { - rcvWnd = max - } - - // We do not adjust downwards as that can cause the receiver to - // reject valid data that might already be in flight as the - // acceptable window will shrink. - rcvBufSize := int(e.ops.GetReceiveBufferSize()) - if rcvWnd > rcvBufSize { - availBefore := wndFromSpace(e.receiveBufferAvailableLocked(rcvBufSize)) - e.ops.SetReceiveBufferSize(int64(rcvWnd), false /* notify */) - availAfter := wndFromSpace(e.receiveBufferAvailableLocked(rcvWnd)) - if crossed, above := e.windowCrossedACKThresholdLocked(availAfter-availBefore, rcvBufSize); crossed && above { - sendNonZeroWindowUpdate = true - } - } - - // We only update PrevCopiedBytes when we grow the buffer because in cases - // where PrevCopiedBytes > prevRTTCopied the existing buffer is already big - // enough to handle the current rate and we don't need to do any - // adjustments. - e.RcvAutoParams.PrevCopiedBytes = prevRTTCopied - } - e.RcvAutoParams.MeasureTime = now - e.RcvAutoParams.CopiedBytes = 0 - e.rcvQueueMu.Unlock() - - // Send the update after unlocking rcvQueueMu as sending a segment acquires - // the lock to calculate the window to be sent. - if e.EndpointState().connected() && sendNonZeroWindowUpdate { - e.rcv.nonZeroWindow() // +checklocksforce:e.rcv.ep.mu - } -} - -// SetOwner implements tcpip.Endpoint.SetOwner. -func (e *Endpoint) SetOwner(owner tcpip.PacketOwner) { - e.owner = owner -} - -// +checklocks:e.mu -func (e *Endpoint) hardErrorLocked() tcpip.Error { - err := e.hardError - e.hardError = nil - return err -} - -// +checklocks:e.mu -func (e *Endpoint) lastErrorLocked() tcpip.Error { - e.lastErrorMu.Lock() - defer e.lastErrorMu.Unlock() - err := e.lastError - e.lastError = nil - return err -} - -// LastError implements tcpip.Endpoint.LastError. -func (e *Endpoint) LastError() tcpip.Error { - e.LockUser() - defer e.UnlockUser() - if err := e.hardErrorLocked(); err != nil { - return err - } - return e.lastErrorLocked() -} - -// LastErrorLocked reads and clears lastError. -// Only to be used in tests. -// +checklocks:e.mu -func (e *Endpoint) LastErrorLocked() tcpip.Error { - return e.lastErrorLocked() -} - -// UpdateLastError implements tcpip.SocketOptionsHandler.UpdateLastError. -func (e *Endpoint) UpdateLastError(err tcpip.Error) { - e.LockUser() - e.lastErrorMu.Lock() - e.lastError = err - e.lastErrorMu.Unlock() - e.UnlockUser() -} - -// Read implements tcpip.Endpoint.Read. -func (e *Endpoint) Read(dst io.Writer, opts tcpip.ReadOptions) (tcpip.ReadResult, tcpip.Error) { - e.LockUser() - defer e.UnlockUser() - - if err := e.checkReadLocked(); err != nil { - if _, ok := err.(*tcpip.ErrClosedForReceive); ok { - e.stats.ReadErrors.ReadClosed.Increment() - } - return tcpip.ReadResult{}, err - } - - var err error - done := 0 - // N.B. Here we get the first segment to be processed. It is safe to not - // hold rcvQueueMu when processing, since we hold e.mu to ensure we only - // remove segments from the list through Read() and that new segments - // cannot be appended. - s := e.rcvQueue.Front() - for s != nil { - var n int - n, err = s.ReadTo(dst, opts.Peek) - // Book keeping first then error handling. - done += n - - if opts.Peek { - s = s.Next() - } else { - sendNonZeroWindowUpdate := false - memDelta := 0 - for { - seg := e.rcvQueue.Front() - if seg == nil || seg.payloadSize() != 0 { - break - } - e.rcvQueue.Remove(seg) - // Memory is only considered released when the whole segment has been - // read. - memDelta += seg.segMemSize() - seg.DecRef() - } - e.rcvQueueMu.Lock() - e.RcvBufUsed -= n - s = e.rcvQueue.Front() - - if memDelta > 0 { - // If the window was small before this read and if the read freed up - // enough buffer space, to either fit an aMSS or half a receive buffer - // (whichever smaller), then notify the protocol goroutine to send a - // window update. - if crossed, above := e.windowCrossedACKThresholdLocked(memDelta, int(e.ops.GetReceiveBufferSize())); crossed && above { - sendNonZeroWindowUpdate = true - } - } - e.rcvQueueMu.Unlock() - - if e.EndpointState().connected() && sendNonZeroWindowUpdate { - e.rcv.nonZeroWindow() // +checklocksforce:e.rcv.ep.mu - } - } - - if err != nil { - break - } - } - - // If something is read, we must report it. Report error when nothing is read. - if done == 0 && err != nil { - return tcpip.ReadResult{}, &tcpip.ErrBadBuffer{} - } - return tcpip.ReadResult{ - Count: done, - Total: done, - }, nil -} - -// checkRead checks that endpoint is in a readable state. -// -// +checklocks:e.mu -func (e *Endpoint) checkReadLocked() tcpip.Error { - e.rcvQueueMu.Lock() - defer e.rcvQueueMu.Unlock() - // When in SYN-SENT state, let the caller block on the receive. - // An application can initiate a non-blocking connect and then block - // on a receive. It can expect to read any data after the handshake - // is complete. RFC793, section 3.9, p58. - if e.EndpointState() == StateSynSent { - return &tcpip.ErrWouldBlock{} - } - - // The endpoint can be read if it's connected, or if it's already closed - // but has some pending unread data. Also note that a RST being received - // would cause the state to become StateError so we should allow the - // reads to proceed before returning a ECONNRESET. - bufUsed := e.RcvBufUsed - if s := e.EndpointState(); !s.connected() && s != StateClose && bufUsed == 0 { - if s == StateError { - if err := e.hardErrorLocked(); err != nil { - return err - } - return &tcpip.ErrClosedForReceive{} - } - e.stats.ReadErrors.NotConnected.Increment() - return &tcpip.ErrNotConnected{} - } - - if e.RcvBufUsed == 0 { - if e.RcvClosed || !e.EndpointState().connected() { - return &tcpip.ErrClosedForReceive{} - } - return &tcpip.ErrWouldBlock{} - } - - return nil -} - -// isEndpointWritableLocked checks if a given endpoint is writable -// and also returns the number of bytes that can be written at this -// moment. If the endpoint is not writable then it returns an error -// indicating the reason why it's not writable. -// +checklocks:e.mu -// +checklocks:e.sndQueueInfo.sndQueueMu -func (e *Endpoint) isEndpointWritableLocked() (int, tcpip.Error) { - // The endpoint cannot be written to if it's not connected. - switch s := e.EndpointState(); { - case s == StateError: - if err := e.hardErrorLocked(); err != nil { - return 0, err - } - return 0, &tcpip.ErrClosedForSend{} - case !s.connecting() && !s.connected(): - return 0, &tcpip.ErrClosedForSend{} - case s.connecting(): - // As per RFC793, page 56, a send request arriving when in connecting - // state, can be queued to be completed after the state becomes - // connected. Return an error code for the caller of endpoint Write to - // try again, until the connection handshake is complete. - return 0, &tcpip.ErrWouldBlock{} - } - - // Check if the connection has already been closed for sends. - if e.sndQueueInfo.SndClosed { - return 0, &tcpip.ErrClosedForSend{} - } - - sndBufSize := e.getSendBufferSize() - avail := sndBufSize - e.sndQueueInfo.SndBufUsed - if avail <= 0 { - return 0, &tcpip.ErrWouldBlock{} - } - return avail, nil -} - -// readFromPayloader reads a slice from the Payloader. -// +checklocks:e.mu -// +checklocks:e.sndQueueInfo.sndQueueMu -func (e *Endpoint) readFromPayloader(p tcpip.Payloader, opts tcpip.WriteOptions, avail int) (buffer.Buffer, tcpip.Error) { - // We can release locks while copying data. - // - // This is not possible if atomic is set, because we can't allow the - // available buffer space to be consumed by some other caller while we - // are copying data in. - limRdr := e.limRdr - if !opts.Atomic { - defer func() { - e.limRdr = limRdr - }() - e.limRdr = nil - - e.sndQueueInfo.sndQueueMu.Unlock() - defer e.sndQueueInfo.sndQueueMu.Lock() - - e.UnlockUser() - defer e.LockUser() - } - - // Fetch data. - var payload buffer.Buffer - if l := p.Len(); l < avail { - avail = l - } - if avail == 0 { - return payload, nil - } - if _, err := payload.WriteFromReaderAndLimitedReader(p, int64(avail), limRdr); err != nil { - payload.Release() - return buffer.Buffer{}, &tcpip.ErrBadBuffer{} - } - return payload, nil -} - -// queueSegment reads data from the payloader and returns a segment to be sent. -// +checklocks:e.mu -func (e *Endpoint) queueSegment(p tcpip.Payloader, opts tcpip.WriteOptions) (*segment, int, tcpip.Error) { - e.sndQueueInfo.sndQueueMu.Lock() - defer e.sndQueueInfo.sndQueueMu.Unlock() - - avail, err := e.isEndpointWritableLocked() - if err != nil { - e.stats.WriteErrors.WriteClosed.Increment() - return nil, 0, err - } - - buf, err := e.readFromPayloader(p, opts, avail) - if err != nil { - return nil, 0, err - } - - // Do not queue zero length segments. - if buf.Size() == 0 { - return nil, 0, nil - } - - if !opts.Atomic { - // Since we released locks in between it's possible that the - // endpoint transitioned to a CLOSED/ERROR states so make - // sure endpoint is still writable before trying to write. - avail, err := e.isEndpointWritableLocked() - if err != nil { - e.stats.WriteErrors.WriteClosed.Increment() - buf.Release() - return nil, 0, err - } - - // A simultaneous call to write on the socket can reduce avail. Discard - // excess data copied if this is the case. - if int64(avail) < buf.Size() { - buf.Truncate(int64(avail)) - } - } - - // Add data to the send queue. - size := int(buf.Size()) - s := newOutgoingSegment(e.TransportEndpointInfo.ID, e.stack.Clock(), buf) - e.sndQueueInfo.SndBufUsed += size - e.snd.writeList.PushBack(s) - - return s, size, nil -} - -// Write writes data to the endpoint's peer. -func (e *Endpoint) Write(p tcpip.Payloader, opts tcpip.WriteOptions) (int64, tcpip.Error) { - // Linux completely ignores any address passed to sendto(2) for TCP sockets - // (without the MSG_FASTOPEN flag). Corking is unimplemented, so opts.More - // and opts.EndOfRecord are also ignored. - - e.LockUser() - defer e.UnlockUser() - - // Return if either we didn't queue anything or if an error occurred while - // attempting to queue data. - nextSeg, n, err := e.queueSegment(p, opts) - if n == 0 || err != nil { - return 0, err - } - - e.sendData(nextSeg) - return int64(n), nil -} - -// selectWindowLocked returns the new window without checking for shrinking or scaling -// applied. -// +checklocks:e.mu -// +checklocks:e.rcvQueueMu -func (e *Endpoint) selectWindowLocked(rcvBufSize int) (wnd seqnum.Size) { - wndFromAvailable := wndFromSpace(e.receiveBufferAvailableLocked(rcvBufSize)) - maxWindow := wndFromSpace(rcvBufSize) - wndFromUsedBytes := maxWindow - e.RcvBufUsed - - // We take the lesser of the wndFromAvailable and wndFromUsedBytes because in - // cases where we receive a lot of small segments the segment overhead is a - // lot higher and we can run out socket buffer space before we can fill the - // previous window we advertised. In cases where we receive MSS sized or close - // MSS sized segments we will probably run out of window space before we - // exhaust receive buffer. - newWnd := wndFromAvailable - if newWnd > wndFromUsedBytes { - newWnd = wndFromUsedBytes - } - if newWnd < 0 { - newWnd = 0 - } - return seqnum.Size(newWnd) -} - -// selectWindow invokes selectWindowLocked after acquiring e.rcvQueueMu. -// +checklocks:e.mu -func (e *Endpoint) selectWindow() (wnd seqnum.Size) { - e.rcvQueueMu.Lock() - wnd = e.selectWindowLocked(int(e.ops.GetReceiveBufferSize())) - e.rcvQueueMu.Unlock() - return wnd -} - -// windowCrossedACKThresholdLocked checks if the receive window to be announced -// would be under aMSS or under the window derived from half receive buffer, -// whichever smaller. This is useful as a receive side silly window syndrome -// prevention mechanism. If window grows to reasonable value, we should send ACK -// to the sender to inform the rx space is now large. We also want ensure a -// series of small read()'s won't trigger a flood of spurious tiny ACK's. -// -// For large receive buffers, the threshold is aMSS - once reader reads more -// than aMSS we'll send ACK. For tiny receive buffers, the threshold is half of -// receive buffer size. This is chosen arbitrarily. -// crossed will be true if the window size crossed the ACK threshold. -// above will be true if the new window is >= ACK threshold and false -// otherwise. -// -// +checklocks:e.mu -// +checklocks:e.rcvQueueMu -func (e *Endpoint) windowCrossedACKThresholdLocked(deltaBefore int, rcvBufSize int) (crossed bool, above bool) { - newAvail := int(e.selectWindowLocked(rcvBufSize)) - oldAvail := newAvail - deltaBefore - if oldAvail < 0 { - oldAvail = 0 - } - threshold := int(e.amss) - // rcvBufFraction is the inverse of the fraction of receive buffer size that - // is used to decide if the available buffer space is now above it. - const rcvBufFraction = 2 - if wndThreshold := wndFromSpace(rcvBufSize / rcvBufFraction); threshold > wndThreshold { - threshold = wndThreshold - } - - switch { - case oldAvail < threshold && newAvail >= threshold: - return true, true - case oldAvail >= threshold && newAvail < threshold: - return true, false - } - return false, false -} - -// OnReuseAddressSet implements tcpip.SocketOptionsHandler.OnReuseAddressSet. -func (e *Endpoint) OnReuseAddressSet(v bool) { - e.LockUser() - e.portFlags.TupleOnly = v - e.UnlockUser() -} - -// OnReusePortSet implements tcpip.SocketOptionsHandler.OnReusePortSet. -func (e *Endpoint) OnReusePortSet(v bool) { - e.LockUser() - e.portFlags.LoadBalanced = v - e.UnlockUser() -} - -// OnKeepAliveSet implements tcpip.SocketOptionsHandler.OnKeepAliveSet. -func (e *Endpoint) OnKeepAliveSet(bool) { - e.LockUser() - e.resetKeepaliveTimer(true /* receivedData */) - e.UnlockUser() -} - -// OnDelayOptionSet implements tcpip.SocketOptionsHandler.OnDelayOptionSet. -func (e *Endpoint) OnDelayOptionSet(v bool) { - if !v { - e.LockUser() - defer e.UnlockUser() - // Handle delayed data. - if e.EndpointState().connected() { - e.sendData(nil /* next */) - } - } -} - -// OnCorkOptionSet implements tcpip.SocketOptionsHandler.OnCorkOptionSet. -func (e *Endpoint) OnCorkOptionSet(v bool) { - if !v { - e.LockUser() - defer e.UnlockUser() - if e.snd != nil { - e.snd.corkTimer.disable() - } - // Handle the corked data. - if e.EndpointState().connected() { - e.sendData(nil /* next */) - } - } -} - -func (e *Endpoint) getSendBufferSize() int { - return int(e.ops.GetSendBufferSize()) -} - -// OnSetReceiveBufferSize implements tcpip.SocketOptionsHandler.OnSetReceiveBufferSize. -func (e *Endpoint) OnSetReceiveBufferSize(rcvBufSz, oldSz int64) (newSz int64, postSet func()) { - e.LockUser() - - sendNonZeroWindowUpdate := false - e.rcvQueueMu.Lock() - - // Make sure the receive buffer size allows us to send a - // non-zero window size. - scale := uint8(0) - if e.rcv != nil { - scale = e.rcv.RcvWndScale - } - if rcvBufSz>>scale == 0 { - rcvBufSz = 1 << scale - } - - availBefore := wndFromSpace(e.receiveBufferAvailableLocked(int(oldSz))) - availAfter := wndFromSpace(e.receiveBufferAvailableLocked(int(rcvBufSz))) - e.RcvAutoParams.Disabled = true - - // Immediately send an ACK to uncork the sender silly window - // syndrome prevetion, when our available space grows above aMSS - // or half receive buffer, whichever smaller. - if crossed, above := e.windowCrossedACKThresholdLocked(availAfter-availBefore, int(rcvBufSz)); crossed && above { - sendNonZeroWindowUpdate = true - } - - e.rcvQueueMu.Unlock() - - postSet = func() { - e.LockUser() - defer e.UnlockUser() - if e.EndpointState().connected() && sendNonZeroWindowUpdate { - e.rcv.nonZeroWindow() // +checklocksforce:e.rcv.ep.mu - } - - } - e.UnlockUser() - return rcvBufSz, postSet -} - -// OnSetSendBufferSize implements tcpip.SocketOptionsHandler.OnSetSendBufferSize. -func (e *Endpoint) OnSetSendBufferSize(sz int64) int64 { - e.sndQueueInfo.TCPSndBufState.AutoTuneSndBufDisabled.Store(1) - return sz -} - -// WakeupWriters implements tcpip.SocketOptionsHandler.WakeupWriters. -func (e *Endpoint) WakeupWriters() { - e.LockUser() - defer e.UnlockUser() - - sendBufferSize := e.getSendBufferSize() - e.sndQueueInfo.sndQueueMu.Lock() - notify := (sendBufferSize - e.sndQueueInfo.SndBufUsed) >= e.sndQueueInfo.SndBufUsed>>1 - e.sndQueueInfo.sndQueueMu.Unlock() - - if notify { - e.waiterQueue.Notify(waiter.WritableEvents) - } -} - -// SetSockOptInt sets a socket option. -func (e *Endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) tcpip.Error { - // Lower 2 bits represents ECN bits. RFC 3168, section 23.1 - const inetECNMask = 3 - - switch opt { - case tcpip.KeepaliveCountOption: - e.LockUser() - e.keepalive.Lock() - e.keepalive.count = v - e.keepalive.Unlock() - e.resetKeepaliveTimer(true /* receivedData */) - e.UnlockUser() - - case tcpip.IPv4TOSOption: - e.LockUser() - // TODO(gvisor.dev/issue/995): ECN is not currently supported, - // ignore the bits for now. - e.sendTOS = uint8(v) & ^uint8(inetECNMask) - e.UnlockUser() - - case tcpip.IPv6TrafficClassOption: - e.LockUser() - // TODO(gvisor.dev/issue/995): ECN is not currently supported, - // ignore the bits for now. - e.sendTOS = uint8(v) & ^uint8(inetECNMask) - e.UnlockUser() - - case tcpip.MaxSegOption: - userMSS := v - if userMSS < header.TCPMinimumMSS || userMSS > header.TCPMaximumMSS { - return &tcpip.ErrInvalidOptionValue{} - } - e.LockUser() - e.userMSS = uint16(userMSS) - e.UnlockUser() - - case tcpip.MTUDiscoverOption: - switch v := tcpip.PMTUDStrategy(v); v { - case tcpip.PMTUDiscoveryWant, tcpip.PMTUDiscoveryDont, tcpip.PMTUDiscoveryDo: - e.LockUser() - e.pmtud = v - e.UnlockUser() - case tcpip.PMTUDiscoveryProbe: - // We don't support a way to ignore MTU updates; it's - // either on or it's off. - return &tcpip.ErrNotSupported{} - default: - return &tcpip.ErrNotSupported{} - } - - case tcpip.IPv4TTLOption: - e.LockUser() - e.ipv4TTL = uint8(v) - e.UnlockUser() - - case tcpip.IPv6HopLimitOption: - e.LockUser() - e.ipv6HopLimit = int16(v) - e.UnlockUser() - - case tcpip.TCPSynCountOption: - if v < 1 || v > 255 { - return &tcpip.ErrInvalidOptionValue{} - } - e.LockUser() - e.maxSynRetries = uint8(v) - e.UnlockUser() - - case tcpip.TCPWindowClampOption: - if v == 0 { - e.LockUser() - switch e.EndpointState() { - case StateClose, StateInitial: - e.windowClamp = 0 - e.UnlockUser() - return nil - default: - e.UnlockUser() - return &tcpip.ErrInvalidOptionValue{} - } - } - var rs tcpip.TCPReceiveBufferSizeRangeOption - if err := e.stack.TransportProtocolOption(ProtocolNumber, &rs); err == nil { - if v < rs.Min/2 { - v = rs.Min / 2 - } - } - e.LockUser() - e.windowClamp = uint32(v) - e.UnlockUser() - } - return nil -} - -// HasNIC returns true if the NICID is defined in the stack or id is 0. -func (e *Endpoint) HasNIC(id int32) bool { - return id == 0 || e.stack.HasNIC(tcpip.NICID(id)) -} - -// SetSockOpt sets a socket option. -func (e *Endpoint) SetSockOpt(opt tcpip.SettableSocketOption) tcpip.Error { - switch v := opt.(type) { - case *tcpip.KeepaliveIdleOption: - e.LockUser() - e.keepalive.Lock() - e.keepalive.idle = time.Duration(*v) - e.keepalive.Unlock() - e.resetKeepaliveTimer(true /* receivedData */) - e.UnlockUser() - - case *tcpip.KeepaliveIntervalOption: - e.LockUser() - e.keepalive.Lock() - e.keepalive.interval = time.Duration(*v) - e.keepalive.Unlock() - e.resetKeepaliveTimer(true /* receivedData */) - e.UnlockUser() - - case *tcpip.TCPUserTimeoutOption: - e.LockUser() - e.userTimeout = time.Duration(*v) - e.UnlockUser() - - case *tcpip.CongestionControlOption: - // Query the available cc algorithms in the stack and - // validate that the specified algorithm is actually - // supported in the stack. - var avail tcpip.TCPAvailableCongestionControlOption - if err := e.stack.TransportProtocolOption(ProtocolNumber, &avail); err != nil { - return err - } - availCC := strings.Split(string(avail), " ") - for _, cc := range availCC { - if *v == tcpip.CongestionControlOption(cc) { - e.LockUser() - state := e.EndpointState() - e.cc = *v - switch state { - case StateEstablished: - if e.EndpointState() == state { - e.snd.cc = e.snd.initCongestionControl(e.cc) - } - } - e.UnlockUser() - return nil - } - } - - // Linux returns ENOENT when an invalid congestion - // control algorithm is specified. - return &tcpip.ErrNoSuchFile{} - - case *tcpip.TCPLingerTimeoutOption: - e.LockUser() - - switch { - case *v < 0: - // Same as effectively disabling TCPLinger timeout. - *v = -1 - case *v == 0: - // Same as the stack default. - var stackLingerTimeout tcpip.TCPLingerTimeoutOption - if err := e.stack.TransportProtocolOption(ProtocolNumber, &stackLingerTimeout); err != nil { - panic(fmt.Sprintf("e.stack.TransportProtocolOption(%d, %+v) = %v", ProtocolNumber, &stackLingerTimeout, err)) - } - *v = stackLingerTimeout - case *v > tcpip.TCPLingerTimeoutOption(MaxTCPLingerTimeout): - // Cap it to Stack's default TCP_LINGER2 timeout. - *v = tcpip.TCPLingerTimeoutOption(MaxTCPLingerTimeout) - default: - } - - e.tcpLingerTimeout = time.Duration(*v) - e.UnlockUser() - - case *tcpip.TCPDeferAcceptOption: - e.LockUser() - if time.Duration(*v) > MaxRTO { - *v = tcpip.TCPDeferAcceptOption(MaxRTO) - } - e.deferAccept = time.Duration(*v) - e.UnlockUser() - - case *tcpip.SocketDetachFilterOption: - return nil - - default: - return nil - } - return nil -} - -// readyReceiveSize returns the number of bytes ready to be received. -func (e *Endpoint) readyReceiveSize() (int, tcpip.Error) { - e.LockUser() - defer e.UnlockUser() - - // The endpoint cannot be in listen state. - if e.EndpointState() == StateListen { - return 0, &tcpip.ErrInvalidEndpointState{} - } - - e.rcvQueueMu.Lock() - defer e.rcvQueueMu.Unlock() - - return e.RcvBufUsed, nil -} - -// GetSockOptInt implements tcpip.Endpoint.GetSockOptInt. -func (e *Endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, tcpip.Error) { - switch opt { - case tcpip.KeepaliveCountOption: - e.keepalive.Lock() - v := e.keepalive.count - e.keepalive.Unlock() - return v, nil - - case tcpip.IPv4TOSOption: - e.LockUser() - v := int(e.sendTOS) - e.UnlockUser() - return v, nil - - case tcpip.IPv6TrafficClassOption: - e.LockUser() - v := int(e.sendTOS) - e.UnlockUser() - return v, nil - - case tcpip.MaxSegOption: - // Linux only returns user_mss value if user_mss is set and the socket is - // unconnected. Otherwise Linux returns the actual current MSS. Netstack - // mimics the user_mss behavior, but otherwise just returns the defaultMSS - // for now. - v := header.TCPDefaultMSS - e.LockUser() - if state := e.EndpointState(); e.userMSS > 0 && (state.internal() || state == StateClose || state == StateListen) { - v = int(e.userMSS) - } - e.UnlockUser() - return v, nil - - case tcpip.MTUDiscoverOption: - e.LockUser() - v := e.pmtud - e.UnlockUser() - return int(v), nil - - case tcpip.ReceiveQueueSizeOption: - return e.readyReceiveSize() - - case tcpip.IPv4TTLOption: - e.LockUser() - v := int(e.ipv4TTL) - e.UnlockUser() - return v, nil - - case tcpip.IPv6HopLimitOption: - e.LockUser() - v := int(e.ipv6HopLimit) - e.UnlockUser() - return v, nil - - case tcpip.TCPSynCountOption: - e.LockUser() - v := int(e.maxSynRetries) - e.UnlockUser() - return v, nil - - case tcpip.TCPWindowClampOption: - e.LockUser() - v := int(e.windowClamp) - e.UnlockUser() - return v, nil - - case tcpip.MulticastTTLOption: - return 1, nil - - default: - return -1, &tcpip.ErrUnknownProtocolOption{} - } -} - -func (e *Endpoint) getTCPInfo() tcpip.TCPInfoOption { - info := tcpip.TCPInfoOption{} - e.LockUser() - if state := e.EndpointState(); state.internal() { - info.State = tcpip.EndpointState(StateClose) - } else { - info.State = tcpip.EndpointState(state) - } - snd := e.snd - if snd != nil { - // We do not calculate RTT before sending the data packets. If - // the connection did not send and receive data, then RTT will - // be zero. - snd.rtt.Lock() - info.RTT = snd.rtt.TCPRTTState.SRTT - info.RTTVar = snd.rtt.TCPRTTState.RTTVar - snd.rtt.Unlock() - - info.RTO = snd.RTO - info.CcState = snd.state - info.SndSsthresh = uint32(snd.Ssthresh) - info.SndCwnd = uint32(snd.SndCwnd) - info.ReorderSeen = snd.rc.Reord - } - e.UnlockUser() - return info -} - -// GetSockOpt implements tcpip.Endpoint.GetSockOpt. -func (e *Endpoint) GetSockOpt(opt tcpip.GettableSocketOption) tcpip.Error { - switch o := opt.(type) { - case *tcpip.TCPInfoOption: - *o = e.getTCPInfo() - - case *tcpip.KeepaliveIdleOption: - e.keepalive.Lock() - *o = tcpip.KeepaliveIdleOption(e.keepalive.idle) - e.keepalive.Unlock() - - case *tcpip.KeepaliveIntervalOption: - e.keepalive.Lock() - *o = tcpip.KeepaliveIntervalOption(e.keepalive.interval) - e.keepalive.Unlock() - - case *tcpip.TCPUserTimeoutOption: - e.LockUser() - *o = tcpip.TCPUserTimeoutOption(e.userTimeout) - e.UnlockUser() - - case *tcpip.CongestionControlOption: - e.LockUser() - *o = e.cc - e.UnlockUser() - - case *tcpip.TCPLingerTimeoutOption: - e.LockUser() - *o = tcpip.TCPLingerTimeoutOption(e.tcpLingerTimeout) - e.UnlockUser() - - case *tcpip.TCPDeferAcceptOption: - e.LockUser() - *o = tcpip.TCPDeferAcceptOption(e.deferAccept) - e.UnlockUser() - - case *tcpip.OriginalDestinationOption: - e.LockUser() - ipt := e.stack.IPTables() - addr, port, err := ipt.OriginalDst(e.TransportEndpointInfo.ID, e.NetProto, ProtocolNumber) - e.UnlockUser() - if err != nil { - return err - } - *o = tcpip.OriginalDestinationOption{ - Addr: addr, - Port: port, - } - - default: - return &tcpip.ErrUnknownProtocolOption{} - } - return nil -} - -// checkV4MappedLocked determines the effective network protocol and converts -// addr to its canonical form. -// +checklocks:e.mu -func (e *Endpoint) checkV4MappedLocked(addr tcpip.FullAddress, bind bool) (tcpip.FullAddress, tcpip.NetworkProtocolNumber, tcpip.Error) { - unwrapped, netProto, err := e.TransportEndpointInfo.AddrNetProtoLocked(addr, e.ops.GetV6Only(), bind) - if err != nil { - return tcpip.FullAddress{}, 0, err - } - return unwrapped, netProto, nil -} - -// Disconnect implements tcpip.Endpoint.Disconnect. -func (*Endpoint) Disconnect() tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -// Connect connects the endpoint to its peer. -func (e *Endpoint) Connect(addr tcpip.FullAddress) tcpip.Error { - e.LockUser() - defer e.UnlockUser() - err := e.connect(addr, true) - if err != nil { - if !err.IgnoreStats() { - // Connect failed. Let's wake up any waiters. - e.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) - e.stack.Stats().TCP.FailedConnectionAttempts.Increment() - e.stats.FailedConnectionAttempts.Increment() - } - } - return err -} - -// registerEndpoint registers the endpoint with the provided address. -// -// +checklocks:e.mu -func (e *Endpoint) registerEndpoint(addr tcpip.FullAddress, netProto tcpip.NetworkProtocolNumber, nicID tcpip.NICID) tcpip.Error { - netProtos := []tcpip.NetworkProtocolNumber{netProto} - if e.TransportEndpointInfo.ID.LocalPort != 0 { - // The endpoint is bound to a port, attempt to register it. - err := e.stack.RegisterTransportEndpoint(netProtos, ProtocolNumber, e.TransportEndpointInfo.ID, e, e.boundPortFlags, e.boundBindToDevice) - if err != nil { - return err - } - } else { - // The endpoint doesn't have a local port yet, so try to get - // one. Make sure that it isn't one that will result in the same - // address/port for both local and remote (otherwise this - // endpoint would be trying to connect to itself). - sameAddr := e.TransportEndpointInfo.ID.LocalAddress == e.TransportEndpointInfo.ID.RemoteAddress - - var twReuse tcpip.TCPTimeWaitReuseOption - if err := e.stack.TransportProtocolOption(ProtocolNumber, &twReuse); err != nil { - panic(fmt.Sprintf("e.stack.TransportProtocolOption(%d, %#v) = %s", ProtocolNumber, &twReuse, err)) - } - - reuse := twReuse == tcpip.TCPTimeWaitReuseGlobal - if twReuse == tcpip.TCPTimeWaitReuseLoopbackOnly { - switch netProto { - case header.IPv4ProtocolNumber: - reuse = header.IsV4LoopbackAddress(e.TransportEndpointInfo.ID.LocalAddress) && header.IsV4LoopbackAddress(e.TransportEndpointInfo.ID.RemoteAddress) - case header.IPv6ProtocolNumber: - reuse = e.TransportEndpointInfo.ID.LocalAddress == header.IPv6Loopback && e.TransportEndpointInfo.ID.RemoteAddress == header.IPv6Loopback - } - } - - bindToDevice := tcpip.NICID(e.ops.GetBindToDevice()) - if _, err := e.stack.PickEphemeralPort(e.stack.SecureRNG(), func(p uint16) (bool, tcpip.Error) { - if sameAddr && p == e.TransportEndpointInfo.ID.RemotePort { - return false, nil - } - portRes := ports.Reservation{ - Networks: netProtos, - Transport: ProtocolNumber, - Addr: e.TransportEndpointInfo.ID.LocalAddress, - Port: p, - Flags: e.portFlags, - BindToDevice: bindToDevice, - Dest: addr, - } - if _, err := e.stack.ReservePort(e.stack.SecureRNG(), portRes, nil /* testPort */); err != nil { - if _, ok := err.(*tcpip.ErrPortInUse); !ok || !reuse { - return false, nil - } - transEPID := e.TransportEndpointInfo.ID - transEPID.LocalPort = p - // Check if an endpoint is registered with demuxer in TIME-WAIT and if - // we can reuse it. If we can't find a transport endpoint then we just - // skip using this port as it's possible that either an endpoint has - // bound the port but not registered with demuxer yet (no listen/connect - // done yet) or the reservation was freed between the check above and - // the FindTransportEndpoint below. But rather than retry the same port - // we just skip it and move on. - transEP := e.stack.FindTransportEndpoint(netProto, ProtocolNumber, transEPID, nicID) - if transEP == nil { - // ReservePort failed but there is no registered endpoint with - // demuxer. Which indicates there is at least some endpoint that has - // bound the port. - return false, nil - } - - tcpEP := transEP.(*Endpoint) - tcpEP.LockUser() - // If the endpoint is not in TIME-WAIT or if it is in TIME-WAIT but - // less than 1 second has elapsed since its recentTS was updated then - // we cannot reuse the port. - if tcpEP.EndpointState() != StateTimeWait || e.stack.Clock().NowMonotonic().Sub(tcpEP.recentTSTime) < 1*time.Second { - tcpEP.UnlockUser() - return false, nil - } - // Since the endpoint is in TIME-WAIT it should be safe to acquire its - // Lock while holding the lock for this endpoint as endpoints in - // TIME-WAIT do not acquire locks on other endpoints. - tcpEP.transitionToStateCloseLocked() - tcpEP.drainClosingSegmentQueue() - tcpEP.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) - tcpEP.UnlockUser() - // Now try and Reserve again if it fails then we skip. - portRes := ports.Reservation{ - Networks: netProtos, - Transport: ProtocolNumber, - Addr: e.TransportEndpointInfo.ID.LocalAddress, - Port: p, - Flags: e.portFlags, - BindToDevice: bindToDevice, - Dest: addr, - } - if _, err := e.stack.ReservePort(e.stack.SecureRNG(), portRes, nil /* testPort */); err != nil { - return false, nil - } - } - - id := e.TransportEndpointInfo.ID - id.LocalPort = p - if err := e.stack.RegisterTransportEndpoint(netProtos, ProtocolNumber, id, e, e.portFlags, bindToDevice); err != nil { - portRes := ports.Reservation{ - Networks: netProtos, - Transport: ProtocolNumber, - Addr: e.TransportEndpointInfo.ID.LocalAddress, - Port: p, - Flags: e.portFlags, - BindToDevice: bindToDevice, - Dest: addr, - } - e.stack.ReleasePort(portRes) - if _, ok := err.(*tcpip.ErrPortInUse); ok { - return false, nil - } - return false, err - } - - // Port picking successful. Save the details of - // the selected port. - e.TransportEndpointInfo.ID = id - e.isPortReserved = true - e.boundBindToDevice = bindToDevice - e.boundPortFlags = e.portFlags - e.boundDest = addr - return true, nil - }); err != nil { - e.stack.Stats().TCP.FailedPortReservations.Increment() - return err - } - } - return nil -} - -// connect connects the endpoint to its peer. -// +checklocks:e.mu -func (e *Endpoint) connect(addr tcpip.FullAddress, handshake bool) tcpip.Error { - connectingAddr := addr.Addr - - addr, netProto, err := e.checkV4MappedLocked(addr, false /* bind */) - if err != nil { - return err - } - - if e.EndpointState().connected() { - // The endpoint is already connected. If caller hasn't been - // notified yet, return success. - if !e.isConnectNotified { - e.isConnectNotified = true - return nil - } - // Otherwise return that it's already connected. - return &tcpip.ErrAlreadyConnected{} - } - - nicID := addr.NIC - switch e.EndpointState() { - case StateBound: - // If we're already bound to a NIC but the caller is requesting - // that we use a different one now, we cannot proceed. - if e.boundNICID == 0 { - break - } - - if nicID != 0 && nicID != e.boundNICID { - return &tcpip.ErrHostUnreachable{} - } - - nicID = e.boundNICID - - case StateInitial: - // Nothing to do. We'll eventually fill-in the gaps in the ID (if any) - // when we find a route. - - case StateConnecting, StateSynSent, StateSynRecv: - // A connection request has already been issued but hasn't completed - // yet. - return &tcpip.ErrAlreadyConnecting{} - - case StateError: - if err := e.hardErrorLocked(); err != nil { - return err - } - return &tcpip.ErrConnectionAborted{} - - default: - return &tcpip.ErrInvalidEndpointState{} - } - - // Find a route to the desired destination. - r, err := e.stack.FindRoute(nicID, e.TransportEndpointInfo.ID.LocalAddress, addr.Addr, netProto, false /* multicastLoop */) - if err != nil { - return err - } - defer r.Release() - - e.TransportEndpointInfo.ID.LocalAddress = r.LocalAddress() - e.TransportEndpointInfo.ID.RemoteAddress = r.RemoteAddress() - e.TransportEndpointInfo.ID.RemotePort = addr.Port - - oldState := e.EndpointState() - e.setEndpointState(StateConnecting) - if err := e.registerEndpoint(addr, netProto, r.NICID()); err != nil { - e.setEndpointState(oldState) - if _, ok := err.(*tcpip.ErrPortInUse); ok { - return &tcpip.ErrBadLocalAddress{} - } - return err - } - - e.isRegistered = true - r.Acquire() - e.route = r - e.boundNICID = nicID - e.effectiveNetProtos = []tcpip.NetworkProtocolNumber{netProto} - e.connectingAddress = connectingAddr - - e.initGSO() - - // Connect in the restore phase does not perform handshake. Restore its - // connection setting here. - if !handshake { - e.segmentQueue.mu.Lock() - for _, l := range []segmentList{e.segmentQueue.list, e.snd.writeList} { - for s := l.Front(); s != nil; s = s.Next() { - s.id = e.TransportEndpointInfo.ID - e.sndQueueInfo.sndWaker.Assert() - } - } - e.segmentQueue.mu.Unlock() - e.snd.ep.AssertLockHeld(e) - e.snd.updateMaxPayloadSize(int(e.route.MTU()), 0) - e.setEndpointState(StateEstablished) - // Set the new auto tuned send buffer size after entering - // established state. - e.ops.SetSendBufferSize(e.computeTCPSendBufferSize(), false /* notify */) - return &tcpip.ErrConnectStarted{} - } - - // Start a new handshake. - h := e.newHandshake() - e.setEndpointState(StateSynSent) - h.start() - e.stack.Stats().TCP.ActiveConnectionOpenings.Increment() - - return &tcpip.ErrConnectStarted{} -} - -// ConnectEndpoint is not supported. -func (*Endpoint) ConnectEndpoint(tcpip.Endpoint) tcpip.Error { - return &tcpip.ErrInvalidEndpointState{} -} - -// Shutdown closes the read and/or write end of the endpoint connection to its -// peer. -func (e *Endpoint) Shutdown(flags tcpip.ShutdownFlags) tcpip.Error { - e.LockUser() - defer e.UnlockUser() - - if e.EndpointState().connecting() { - // When calling shutdown(2) on a connecting socket, the endpoint must - // enter the error state. But this logic cannot belong to the shutdownLocked - // method because that method is called during a close(2) (and closing a - // connecting socket is not an error). - e.handshakeFailed(&tcpip.ErrConnectionReset{}) - e.waiterQueue.Notify(waiter.WritableEvents | waiter.EventHUp | waiter.EventErr) - return nil - } - - return e.shutdownLocked(flags) -} - -// +checklocks:e.mu -func (e *Endpoint) shutdownLocked(flags tcpip.ShutdownFlags) tcpip.Error { - e.shutdownFlags |= flags - switch { - case e.EndpointState().connected(): - // Close for read. - if e.shutdownFlags&tcpip.ShutdownRead != 0 { - // Mark read side as closed. - e.rcvQueueMu.Lock() - e.RcvClosed = true - rcvBufUsed := e.RcvBufUsed - e.rcvQueueMu.Unlock() - // If we're fully closed and we have unread data we need to abort - // the connection with a RST. - if e.shutdownFlags&tcpip.ShutdownWrite != 0 && rcvBufUsed > 0 { - e.resetConnectionLocked(&tcpip.ErrConnectionAborted{}) - return nil - } - // Wake up any readers that maybe waiting for the stream to become - // readable. - events := waiter.ReadableEvents - if e.shutdownFlags&tcpip.ShutdownWrite == 0 { - // If ShutdownWrite is not set, write end won't close and - // we end up with a half-closed connection - events |= waiter.EventRdHUp - } - e.waiterQueue.Notify(events) - } - - // Close for write. - if e.shutdownFlags&tcpip.ShutdownWrite != 0 { - e.sndQueueInfo.sndQueueMu.Lock() - if e.sndQueueInfo.SndClosed { - // Already closed. - e.sndQueueInfo.sndQueueMu.Unlock() - if e.EndpointState() == StateTimeWait { - return &tcpip.ErrNotConnected{} - } - return nil - } - - // Queue fin segment. - s := newOutgoingSegment(e.TransportEndpointInfo.ID, e.stack.Clock(), buffer.Buffer{}) - e.snd.writeList.PushBack(s) - // Mark endpoint as closed. - e.sndQueueInfo.SndClosed = true - e.sndQueueInfo.sndQueueMu.Unlock() - - // Drain the send queue. - e.sendData(s) - - // Mark send side as closed. - e.snd.Closed = true - - // Wake up any writers that maybe waiting for the stream to become - // writable. - e.waiterQueue.Notify(waiter.WritableEvents) - } - - return nil - case e.EndpointState() == StateListen: - if e.shutdownFlags&tcpip.ShutdownRead != 0 { - // Reset all connections from the accept queue and keep the - // worker running so that it can continue handling incoming - // segments by replying with RST. - // - // By not removing this endpoint from the demuxer mapping, we - // ensure that any other bind to the same port fails, as on Linux. - e.rcvQueueMu.Lock() - e.RcvClosed = true - e.rcvQueueMu.Unlock() - e.closePendingAcceptableConnectionsLocked() - // Notify waiters that the endpoint is shutdown. - e.waiterQueue.Notify(waiter.ReadableEvents | waiter.WritableEvents | waiter.EventHUp | waiter.EventErr) - } - return nil - default: - return &tcpip.ErrNotConnected{} - } -} - -// Listen puts the endpoint in "listen" mode, which allows it to accept -// new connections. -func (e *Endpoint) Listen(backlog int) tcpip.Error { - if err := e.listen(backlog); err != nil { - if !err.IgnoreStats() { - e.stack.Stats().TCP.FailedConnectionAttempts.Increment() - e.stats.FailedConnectionAttempts.Increment() - } - return err - } - return nil -} - -func (e *Endpoint) listen(backlog int) tcpip.Error { - e.LockUser() - defer e.UnlockUser() - - if e.EndpointState() == StateListen && !e.closed { - e.acceptMu.Lock() - defer e.acceptMu.Unlock() - - // Adjust the size of the backlog iff we can fit - // existing pending connections into the new one. - if e.acceptQueue.endpoints.Len() > backlog { - return &tcpip.ErrInvalidEndpointState{} - } - e.acceptQueue.capacity = backlog - - if e.acceptQueue.pendingEndpoints == nil { - e.acceptQueue.pendingEndpoints = make(map[*Endpoint]struct{}) - } - - e.shutdownFlags = 0 - e.updateConnDirectionState(connDirectionStateOpen) - e.rcvQueueMu.Lock() - e.RcvClosed = false - e.rcvQueueMu.Unlock() - - return nil - } - - if e.EndpointState() == StateInitial { - // The listen is called on an unbound socket, the socket is - // automatically bound to a random free port with the local - // address set to INADDR_ANY. - if err := e.bindLocked(tcpip.FullAddress{}); err != nil { - return err - } - } - - // Endpoint must be bound before it can transition to listen mode. - if e.EndpointState() != StateBound { - e.stats.ReadErrors.InvalidEndpointState.Increment() - return &tcpip.ErrInvalidEndpointState{} - } - - // Setting this state after RegisterTransportEndpoint will result in a - // race where the endpoint is in Bound but reachable via the demuxer. Instead - // we set it to listen so that incoming packets will just be queued to the - // inbound segment queue by the TCP processor. - e.setEndpointState(StateListen) - // Register the endpoint. - if err := e.stack.RegisterTransportEndpoint(e.effectiveNetProtos, ProtocolNumber, e.TransportEndpointInfo.ID, e, e.boundPortFlags, e.boundBindToDevice); err != nil { - e.transitionToStateCloseLocked() - return err - } - - e.isRegistered = true - - // The queue may be non-zero when we're restoring the endpoint, and it - // may be pre-populated with some previously accepted (but not Accepted) - // endpoints. - e.acceptMu.Lock() - if e.acceptQueue.pendingEndpoints == nil { - e.acceptQueue.pendingEndpoints = make(map[*Endpoint]struct{}) - } - if e.acceptQueue.capacity == 0 { - e.acceptQueue.capacity = backlog - } - e.acceptMu.Unlock() - - // Initialize the listening context. - rcvWnd := seqnum.Size(e.receiveBufferAvailable()) - e.listenCtx = newListenContext(e.stack, e.protocol, e, rcvWnd, e.ops.GetV6Only(), e.NetProto) - - return nil -} - -// Accept returns a new endpoint if a peer has established a connection -// to an endpoint previously set to listen mode. -// -// addr if not-nil will contain the peer address of the returned endpoint. -func (e *Endpoint) Accept(peerAddr *tcpip.FullAddress) (tcpip.Endpoint, *waiter.Queue, tcpip.Error) { - e.LockUser() - defer e.UnlockUser() - - e.rcvQueueMu.Lock() - rcvClosed := e.RcvClosed - e.rcvQueueMu.Unlock() - // Endpoint must be in listen state before it can accept connections. - if rcvClosed || e.EndpointState() != StateListen { - return nil, nil, &tcpip.ErrInvalidEndpointState{} - } - - // Get the new accepted endpoint. - var n *Endpoint - e.acceptMu.Lock() - if element := e.acceptQueue.endpoints.Front(); element != nil { - n = e.acceptQueue.endpoints.Remove(element).(*Endpoint) - } - e.acceptMu.Unlock() - if n == nil { - return nil, nil, &tcpip.ErrWouldBlock{} - } - if peerAddr != nil { - *peerAddr = n.getRemoteAddress() - } - return n, n.waiterQueue, nil -} - -// Bind binds the endpoint to a specific local port and optionally address. -func (e *Endpoint) Bind(addr tcpip.FullAddress) (err tcpip.Error) { - e.LockUser() - defer e.UnlockUser() - - return e.bindLocked(addr) -} - -// +checklocks:e.mu -func (e *Endpoint) bindLocked(addr tcpip.FullAddress) (err tcpip.Error) { - // Don't allow binding once endpoint is not in the initial state - // anymore. This is because once the endpoint goes into a connected or - // listen state, it is already bound. - if e.EndpointState() != StateInitial { - return &tcpip.ErrAlreadyBound{} - } - - e.BindAddr = addr.Addr - addr, netProto, err := e.checkV4MappedLocked(addr, true /* bind */) - if err != nil { - return err - } - - netProtos := []tcpip.NetworkProtocolNumber{netProto} - - // Expand netProtos to include v4 and v6 under dual-stack if the caller is - // binding to a wildcard (empty) address, and this is an IPv6 endpoint with - // v6only set to false. - if netProto == header.IPv6ProtocolNumber { - stackHasV4 := e.stack.CheckNetworkProtocol(header.IPv4ProtocolNumber) - alsoBindToV4 := !e.ops.GetV6Only() && addr.Addr == tcpip.Address{} && stackHasV4 - if alsoBindToV4 { - netProtos = append(netProtos, header.IPv4ProtocolNumber) - } - } - - var nic tcpip.NICID - // If an address is specified, we must ensure that it's one of our - // local addresses. - if addr.Addr.Len() != 0 { - nic = e.stack.CheckLocalAddress(addr.NIC, netProto, addr.Addr) - if nic == 0 { - return &tcpip.ErrBadLocalAddress{} - } - e.TransportEndpointInfo.ID.LocalAddress = addr.Addr - } - - bindToDevice := tcpip.NICID(e.ops.GetBindToDevice()) - portRes := ports.Reservation{ - Networks: netProtos, - Transport: ProtocolNumber, - Addr: addr.Addr, - Port: addr.Port, - Flags: e.portFlags, - BindToDevice: bindToDevice, - Dest: tcpip.FullAddress{}, - } - port, err := e.stack.ReservePort(e.stack.SecureRNG(), portRes, func(p uint16) (bool, tcpip.Error) { - id := e.TransportEndpointInfo.ID - id.LocalPort = p - // CheckRegisterTransportEndpoint should only return an error if there is a - // listening endpoint bound with the same id and portFlags and bindToDevice - // options. - // - // NOTE: Only listening and connected endpoint register with - // demuxer. Further connected endpoints always have a remote - // address/port. Hence this will only return an error if there is a matching - // listening endpoint. - if err := e.stack.CheckRegisterTransportEndpoint(netProtos, ProtocolNumber, id, e.portFlags, bindToDevice); err != nil { - return false, nil - } - return true, nil - }) - if err != nil { - e.stack.Stats().TCP.FailedPortReservations.Increment() - return err - } - - e.boundBindToDevice = bindToDevice - e.boundPortFlags = e.portFlags - // TODO(gvisor.dev/issue/3691): Add test to verify boundNICID is correct. - e.boundNICID = nic - e.isPortReserved = true - e.effectiveNetProtos = netProtos - e.TransportEndpointInfo.ID.LocalPort = port - - // Mark endpoint as bound. - e.setEndpointState(StateBound) - - return nil -} - -// GetLocalAddress returns the address to which the endpoint is bound. -func (e *Endpoint) GetLocalAddress() (tcpip.FullAddress, tcpip.Error) { - e.LockUser() - defer e.UnlockUser() - - return tcpip.FullAddress{ - Addr: e.TransportEndpointInfo.ID.LocalAddress, - Port: e.TransportEndpointInfo.ID.LocalPort, - NIC: e.boundNICID, - }, nil -} - -// GetRemoteAddress returns the address to which the endpoint is connected. -func (e *Endpoint) GetRemoteAddress() (tcpip.FullAddress, tcpip.Error) { - e.LockUser() - defer e.UnlockUser() - - if !e.EndpointState().connected() { - return tcpip.FullAddress{}, &tcpip.ErrNotConnected{} - } - - return e.getRemoteAddress(), nil -} - -func (e *Endpoint) getRemoteAddress() tcpip.FullAddress { - return tcpip.FullAddress{ - Addr: e.TransportEndpointInfo.ID.RemoteAddress, - Port: e.TransportEndpointInfo.ID.RemotePort, - NIC: e.boundNICID, - } -} - -// HandlePacket implements stack.TransportEndpoint.HandlePacket. -func (*Endpoint) HandlePacket(stack.TransportEndpointID, *stack.PacketBuffer) { - // TCP HandlePacket is not required anymore as inbound packets first - // land at the Dispatcher which then can either deliver using the - // worker go routine or directly do the invoke the tcp processing inline - // based on the state of the endpoint. -} - -func (e *Endpoint) enqueueSegment(s *segment) bool { - // Send packet to worker goroutine. - if !e.segmentQueue.enqueue(s) { - // The queue is full, so we drop the segment. - e.stack.Stats().DroppedPackets.Increment() - e.stats.ReceiveErrors.SegmentQueueDropped.Increment() - return false - } - return true -} - -func (e *Endpoint) onICMPError(err tcpip.Error, transErr stack.TransportError, pkt *stack.PacketBuffer) { - // Update last error first. - e.lastErrorMu.Lock() - e.lastError = err - e.lastErrorMu.Unlock() - - var recvErr bool - switch pkt.NetworkProtocolNumber { - case header.IPv4ProtocolNumber: - recvErr = e.SocketOptions().GetIPv4RecvError() - case header.IPv6ProtocolNumber: - recvErr = e.SocketOptions().GetIPv6RecvError() - default: - panic(fmt.Sprintf("unhandled network protocol number = %d", pkt.NetworkProtocolNumber)) - } - - if recvErr { - e.SocketOptions().QueueErr(&tcpip.SockError{ - Err: err, - Cause: transErr, - // Linux passes the payload with the TCP header. We don't know if the TCP - // header even exists, it may not for fragmented packets. - Payload: pkt.Data().AsRange().ToView(), - Dst: tcpip.FullAddress{ - NIC: pkt.NICID, - Addr: e.TransportEndpointInfo.ID.RemoteAddress, - Port: e.TransportEndpointInfo.ID.RemotePort, - }, - Offender: tcpip.FullAddress{ - NIC: pkt.NICID, - Addr: e.TransportEndpointInfo.ID.LocalAddress, - Port: e.TransportEndpointInfo.ID.LocalPort, - }, - NetProto: pkt.NetworkProtocolNumber, - }) - } - - if e.EndpointState().connecting() { - e.mu.Lock() - if lEP := e.h.listenEP; lEP != nil { - // Remove from listening endpoints pending list. - lEP.acceptMu.Lock() - delete(lEP.acceptQueue.pendingEndpoints, e) - lEP.acceptMu.Unlock() - lEP.stats.FailedConnectionAttempts.Increment() - } - e.stack.Stats().TCP.FailedConnectionAttempts.Increment() - e.cleanupLocked() - e.hardError = err - e.setEndpointState(StateError) - e.mu.Unlock() - e.drainClosingSegmentQueue() - e.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) - } -} - -// HandleError implements stack.TransportEndpoint. -func (e *Endpoint) HandleError(transErr stack.TransportError, pkt *stack.PacketBuffer) { - handlePacketTooBig := func(mtu uint32) { - e.sndQueueInfo.sndQueueMu.Lock() - update := false - if v := int(mtu); v < e.sndQueueInfo.SndMTU { - e.sndQueueInfo.SndMTU = v - update = true - } - newMTU := e.sndQueueInfo.SndMTU - e.sndQueueInfo.sndQueueMu.Unlock() - if update { - e.mu.Lock() - defer e.mu.Unlock() - if e.snd != nil { - e.snd.updateMaxPayloadSize(newMTU, 1 /* count */) // +checklocksforce:e.snd.ep.mu - } - } - } - - // TODO(gvisor.dev/issues/5270): Handle all transport errors. - switch transErr.Kind() { - case stack.PacketTooBigTransportError: - handlePacketTooBig(transErr.Info()) - case stack.DestinationHostUnreachableTransportError: - e.onICMPError(&tcpip.ErrHostUnreachable{}, transErr, pkt) - case stack.DestinationNetworkUnreachableTransportError: - e.onICMPError(&tcpip.ErrNetworkUnreachable{}, transErr, pkt) - case stack.DestinationPortUnreachableTransportError: - e.onICMPError(&tcpip.ErrConnectionRefused{}, transErr, pkt) - case stack.DestinationProtoUnreachableTransportError: - e.onICMPError(&tcpip.ErrUnknownProtocolOption{}, transErr, pkt) - case stack.SourceRouteFailedTransportError: - e.onICMPError(&tcpip.ErrNotSupported{}, transErr, pkt) - case stack.SourceHostIsolatedTransportError: - e.onICMPError(&tcpip.ErrNoNet{}, transErr, pkt) - case stack.DestinationHostDownTransportError: - e.onICMPError(&tcpip.ErrHostDown{}, transErr, pkt) - } -} - -// updateSndBufferUsage is called by the protocol goroutine when room opens up -// in the send buffer. The number of newly available bytes is v. -func (e *Endpoint) updateSndBufferUsage(v int) { - sendBufferSize := e.getSendBufferSize() - e.sndQueueInfo.sndQueueMu.Lock() - notify := e.sndQueueInfo.SndBufUsed >= sendBufferSize>>1 - e.sndQueueInfo.SndBufUsed -= v - - // Get the new send buffer size with auto tuning, but do not set it - // unless we decide to notify the writers. - newSndBufSz := e.computeTCPSendBufferSize() - - // We only notify when there is half the sendBufferSize available after - // a full buffer event occurs. This ensures that we don't wake up - // writers to queue just 1-2 segments and go back to sleep. - notify = notify && e.sndQueueInfo.SndBufUsed < int(newSndBufSz)>>1 - e.sndQueueInfo.sndQueueMu.Unlock() - - if notify { - // Set the new send buffer size calculated from auto tuning. - e.ops.SetSendBufferSize(newSndBufSz, false /* notify */) - e.waiterQueue.Notify(waiter.WritableEvents) - } -} - -// readyToRead is called by the protocol goroutine when a new segment is ready -// to be read, or when the connection is closed for receiving (in which case -// s will be nil). -// -// +checklocks:e.mu -func (e *Endpoint) readyToRead(s *segment) { - e.rcvQueueMu.Lock() - if s != nil { - e.RcvBufUsed += s.payloadSize() - s.IncRef() - e.rcvQueue.PushBack(s) - } else { - e.RcvClosed = true - } - e.rcvQueueMu.Unlock() - e.waiterQueue.Notify(waiter.ReadableEvents) -} - -// receiveBufferAvailableLocked calculates how many bytes are still available -// in the receive buffer. -// +checklocks:e.rcvQueueMu -func (e *Endpoint) receiveBufferAvailableLocked(rcvBufSize int) int { - // We may use more bytes than the buffer size when the receive buffer - // shrinks. - memUsed := e.receiveMemUsed() - if memUsed >= rcvBufSize { - return 0 - } - - return rcvBufSize - memUsed -} - -// receiveBufferAvailable calculates how many bytes are still available in the -// receive buffer based on the actual memory used by all segments held in -// receive buffer/pending and segment queue. -func (e *Endpoint) receiveBufferAvailable() int { - e.rcvQueueMu.Lock() - available := e.receiveBufferAvailableLocked(int(e.ops.GetReceiveBufferSize())) - e.rcvQueueMu.Unlock() - return available -} - -// receiveBufferUsed returns the amount of in-use receive buffer. -func (e *Endpoint) receiveBufferUsed() int { - e.rcvQueueMu.Lock() - used := e.RcvBufUsed - e.rcvQueueMu.Unlock() - return used -} - -// receiveMemUsed returns the total memory in use by segments held by this -// endpoint. -func (e *Endpoint) receiveMemUsed() int { - return int(e.rcvMemUsed.Load()) -} - -// updateReceiveMemUsed adds the provided delta to e.rcvMemUsed. -func (e *Endpoint) updateReceiveMemUsed(delta int) { - e.rcvMemUsed.Add(int32(delta)) -} - -// maxReceiveBufferSize returns the stack wide maximum receive buffer size for -// an endpoint. -func (e *Endpoint) maxReceiveBufferSize() int { - var rs tcpip.TCPReceiveBufferSizeRangeOption - if err := e.stack.TransportProtocolOption(ProtocolNumber, &rs); err != nil { - // As a fallback return the hardcoded max buffer size. - return MaxBufferSize - } - return rs.Max -} - -// directionState returns the close state of send and receive part of the endpoint -func (e *Endpoint) connDirectionState() connDirectionState { - return connDirectionState(e.connectionDirectionState.Load()) -} - -// updateDirectionState updates the close state of send and receive part of the endpoint -func (e *Endpoint) updateConnDirectionState(state connDirectionState) connDirectionState { - return connDirectionState(e.connectionDirectionState.Swap(uint32(e.connDirectionState() | state))) -} - -// rcvWndScaleForHandshake computes the receive window scale to offer to the -// peer when window scaling is enabled (true by default). If auto-tuning is -// disabled then the window scaling factor is based on the size of the -// receiveBuffer otherwise we use the max permissible receive buffer size to -// compute the scale. -func (e *Endpoint) rcvWndScaleForHandshake() int { - bufSizeForScale := e.ops.GetReceiveBufferSize() - - e.rcvQueueMu.Lock() - autoTuningDisabled := e.RcvAutoParams.Disabled - e.rcvQueueMu.Unlock() - if autoTuningDisabled { - return FindWndScale(seqnum.Size(bufSizeForScale)) - } - - return FindWndScale(seqnum.Size(e.maxReceiveBufferSize())) -} - -// updateRecentTimestamp updates the recent timestamp using the algorithm -// described in https://tools.ietf.org/html/rfc7323#section-4.3 -func (e *Endpoint) updateRecentTimestamp(tsVal uint32, maxSentAck seqnum.Value, segSeq seqnum.Value) { - if e.SendTSOk && seqnum.Value(e.recentTimestamp()).LessThan(seqnum.Value(tsVal)) && segSeq.LessThanEq(maxSentAck) { - e.setRecentTimestamp(tsVal) - } -} - -// maybeEnableTimestamp marks the timestamp option enabled for this endpoint if -// the SYN options indicate that timestamp option was negotiated. It also -// initializes the recentTS with the value provided in synOpts.TSval. -func (e *Endpoint) maybeEnableTimestamp(synOpts header.TCPSynOptions) { - if synOpts.TS { - e.SendTSOk = true - e.setRecentTimestamp(synOpts.TSVal) - } -} - -func (e *Endpoint) tsVal(now tcpip.MonotonicTime) uint32 { - return e.TSOffset.TSVal(now) -} - -func (e *Endpoint) tsValNow() uint32 { - return e.tsVal(e.stack.Clock().NowMonotonic()) -} - -func (e *Endpoint) elapsed(now tcpip.MonotonicTime, tsEcr uint32) time.Duration { - return e.TSOffset.Elapsed(now, tsEcr) -} - -// maybeEnableSACKPermitted marks the SACKPermitted option enabled for this endpoint -// if the SYN options indicate that the SACK option was negotiated and the TCP -// stack is configured to enable TCP SACK option. -func (e *Endpoint) maybeEnableSACKPermitted(synOpts header.TCPSynOptions) { - var v tcpip.TCPSACKEnabled - if err := e.stack.TransportProtocolOption(ProtocolNumber, &v); err != nil { - // Stack doesn't support SACK. So just return. - return - } - if bool(v) && synOpts.SACKPermitted { - e.SACKPermitted = true - e.stack.TransportProtocolOption(ProtocolNumber, &e.tcpRecovery) - } -} - -// maxOptionSize return the maximum size of TCP options. -func (e *Endpoint) maxOptionSize() (size int) { - var maxSackBlocks [header.TCPMaxSACKBlocks]header.SACKBlock - options := e.makeOptions(maxSackBlocks[:]) - size = len(options) - putOptions(options) - - return size -} - -// completeStateLocked makes a full copy of the endpoint and returns it. This is -// used before invoking the probe. -// -// +checklocks:e.mu -func (e *Endpoint) completeStateLocked(s *stack.TCPEndpointState) { - s.TCPEndpointStateInner = e.TCPEndpointStateInner - s.ID = stack.TCPEndpointID(e.TransportEndpointInfo.ID) - s.SegTime = e.stack.Clock().NowMonotonic() - s.Receiver = e.rcv.TCPReceiverState - s.Sender = e.snd.TCPSenderState - - sndBufSize := e.getSendBufferSize() - // Copy the send buffer atomically. - e.sndQueueInfo.sndQueueMu.Lock() - e.sndQueueInfo.CloneState(&s.SndBufState) - s.SndBufState.SndBufSize = sndBufSize - e.sndQueueInfo.sndQueueMu.Unlock() - - // Copy the receive buffer atomically. - e.rcvQueueMu.Lock() - s.RcvBufState = e.TCPRcvBufState - e.rcvQueueMu.Unlock() - - // Copy the endpoint TCP Option state. - s.SACK.Blocks = make([]header.SACKBlock, e.sack.NumBlocks) - copy(s.SACK.Blocks, e.sack.Blocks[:e.sack.NumBlocks]) - s.SACK.ReceivedBlocks, s.SACK.MaxSACKED = e.scoreboard.Copy() - - e.snd.rtt.Lock() - s.Sender.RTTState = e.snd.rtt.TCPRTTState - e.snd.rtt.Unlock() - - if cubic, ok := e.snd.cc.(*cubicState); ok { - s.Sender.Cubic = cubic.TCPCubicState - s.Sender.Cubic.TimeSinceLastCongestion = e.stack.Clock().NowMonotonic().Sub(s.Sender.Cubic.T) - } - - s.Sender.RACKState = e.snd.rc.TCPRACKState - s.Sender.RetransmitTS = e.snd.retransmitTS - s.Sender.SpuriousRecovery = e.snd.spuriousRecovery -} - -func (e *Endpoint) initHostGSO() { - switch e.route.NetProto() { - case header.IPv4ProtocolNumber: - e.gso.Type = stack.GSOTCPv4 - e.gso.L3HdrLen = header.IPv4MinimumSize - case header.IPv6ProtocolNumber: - e.gso.Type = stack.GSOTCPv6 - e.gso.L3HdrLen = header.IPv6MinimumSize - default: - panic(fmt.Sprintf("Unknown netProto: %v", e.NetProto)) - } - e.gso.NeedsCsum = true - e.gso.CsumOffset = header.TCPChecksumOffset - e.gso.MaxSize = e.route.GSOMaxSize() -} - -func (e *Endpoint) initGSO() { - if e.route.HasHostGSOCapability() { - e.initHostGSO() - } else if e.route.HasGVisorGSOCapability() { - e.gso = stack.GSO{ - MaxSize: e.route.GSOMaxSize(), - Type: stack.GSOGvisor, - NeedsCsum: false, - } - } -} - -// State implements tcpip.Endpoint.State. It exports the endpoint's protocol -// state for diagnostics. -func (e *Endpoint) State() uint32 { - return uint32(e.EndpointState()) -} - -// Info returns a copy of the endpoint info. -func (e *Endpoint) Info() tcpip.EndpointInfo { - e.LockUser() - // Make a copy of the endpoint info. - ret := e.TransportEndpointInfo - e.UnlockUser() - return &ret -} - -// Stats returns a pointer to the endpoint stats. -func (e *Endpoint) Stats() tcpip.EndpointStats { - return &e.stats -} - -// Wait implements stack.TransportEndpoint.Wait. -func (e *Endpoint) Wait() { - waitEntry, notifyCh := waiter.NewChannelEntry(waiter.EventHUp) - e.waiterQueue.EventRegister(&waitEntry) - defer e.waiterQueue.EventUnregister(&waitEntry) - switch e.EndpointState() { - case StateClose, StateError: - return - } - <-notifyCh -} - -// SocketOptions implements tcpip.Endpoint.SocketOptions. -func (e *Endpoint) SocketOptions() *tcpip.SocketOptions { - return &e.ops -} - -// GetTCPSendBufferLimits is used to get send buffer size limits for TCP. -func GetTCPSendBufferLimits(sh tcpip.StackHandler) tcpip.SendBufferSizeOption { - // This type assertion is safe because only the TCP stack calls this - // function. - ss := sh.(*stack.Stack).TCPSendBufferLimits() - return tcpip.SendBufferSizeOption{ - Min: ss.Min, - Default: ss.Default, - Max: ss.Max, - } -} - -// allowOutOfWindowAck returns true if an out-of-window ACK can be sent now. -func (e *Endpoint) allowOutOfWindowAck() bool { - now := e.stack.Clock().NowMonotonic() - - if e.lastOutOfWindowAckTime != (tcpip.MonotonicTime{}) { - var limit stack.TCPInvalidRateLimitOption - if err := e.stack.Option(&limit); err != nil { - panic(fmt.Sprintf("e.stack.Option(%+v) failed with error: %s", limit, err)) - } - if now.Sub(e.lastOutOfWindowAckTime) < time.Duration(limit) { - return false - } - } - - e.lastOutOfWindowAckTime = now - return true -} - -// GetTCPReceiveBufferLimits is used to get send buffer size limits for TCP. -func GetTCPReceiveBufferLimits(s tcpip.StackHandler) tcpip.ReceiveBufferSizeOption { - var ss tcpip.TCPReceiveBufferSizeRangeOption - if err := s.TransportProtocolOption(header.TCPProtocolNumber, &ss); err != nil { - panic(fmt.Sprintf("s.TransportProtocolOption(%d, %#v) = %s", header.TCPProtocolNumber, ss, err)) - } - - return tcpip.ReceiveBufferSizeOption{ - Min: ss.Min, - Default: ss.Default, - Max: ss.Max, - } -} - -// computeTCPSendBufferSize implements auto tuning of send buffer size and -// returns the new send buffer size. -func (e *Endpoint) computeTCPSendBufferSize() int64 { - curSndBufSz := int64(e.getSendBufferSize()) - - // Auto tuning is disabled when the user explicitly sets the send - // buffer size with SO_SNDBUF option. - if disabled := e.sndQueueInfo.TCPSndBufState.AutoTuneSndBufDisabled.Load(); disabled == 1 { - return curSndBufSz - } - - const packetOverheadFactor = 2 - curMSS := e.snd.MaxPayloadSize - numSeg := InitialCwnd - if numSeg < e.snd.SndCwnd { - numSeg = e.snd.SndCwnd - } - - // SndCwnd indicates the number of segments that can be sent. This means - // that the sender can send upto #SndCwnd segments and the send buffer - // size should be set to SndCwnd*MSS to accommodate sending of all the - // segments. - newSndBufSz := int64(numSeg * curMSS * packetOverheadFactor) - if newSndBufSz < curSndBufSz { - return curSndBufSz - } - if ss := GetTCPSendBufferLimits(e.stack); int64(ss.Max) < newSndBufSz { - newSndBufSz = int64(ss.Max) - } - - return newSndBufSz -} - -// GetAcceptConn implements tcpip.SocketOptionsHandler. -func (e *Endpoint) GetAcceptConn() bool { - return EndpointState(e.State()) == StateListen -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/endpoint_state.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/endpoint_state.go deleted file mode 100644 index 63457f7f84..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/endpoint_state.go +++ /dev/null @@ -1,285 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "context" - "fmt" - - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/ports" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -// beforeSave is invoked by stateify. -func (e *Endpoint) beforeSave() { - // Stop incoming packets. - e.segmentQueue.freeze() - - e.mu.Lock() - defer e.mu.Unlock() - - epState := e.EndpointState() - switch { - case epState == StateInitial || epState == StateBound: - case epState.connected() || epState.handshake(): - if !e.route.HasSaveRestoreCapability() { - if !e.route.HasDisconnectOkCapability() { - panic(&tcpip.ErrSaveRejection{ - Err: fmt.Errorf("endpoint cannot be saved in connected state: local %s:%d, remote %s:%d", e.TransportEndpointInfo.ID.LocalAddress, e.TransportEndpointInfo.ID.LocalPort, e.TransportEndpointInfo.ID.RemoteAddress, e.TransportEndpointInfo.ID.RemotePort), - }) - } - e.resetConnectionLocked(&tcpip.ErrConnectionAborted{}) - e.mu.Unlock() - e.Close() - e.mu.Lock() - } - fallthrough - case epState == StateListen: - // Nothing to do. - case epState.closed(): - // Nothing to do. - default: - panic(fmt.Sprintf("endpoint in unknown state %v", e.EndpointState())) - } - - e.stack.RegisterResumableEndpoint(e) -} - -// saveEndpoints is invoked by stateify. -func (a *acceptQueue) saveEndpoints() []*Endpoint { - acceptedEndpoints := make([]*Endpoint, a.endpoints.Len()) - for i, e := 0, a.endpoints.Front(); e != nil; i, e = i+1, e.Next() { - acceptedEndpoints[i] = e.Value.(*Endpoint) - } - return acceptedEndpoints -} - -// loadEndpoints is invoked by stateify. -func (a *acceptQueue) loadEndpoints(_ context.Context, acceptedEndpoints []*Endpoint) { - for _, ep := range acceptedEndpoints { - a.endpoints.PushBack(ep) - } -} - -// saveState is invoked by stateify. -func (e *Endpoint) saveState() EndpointState { - return e.EndpointState() -} - -// Endpoint loading must be done in the following ordering by their state, to -// avoid dangling connecting w/o listening peer, and to avoid conflicts in port -// reservation. -var connectedLoading sync.WaitGroup -var listenLoading sync.WaitGroup -var connectingLoading sync.WaitGroup - -// Bound endpoint loading happens last. - -// loadState is invoked by stateify. -func (e *Endpoint) loadState(_ context.Context, epState EndpointState) { - // This is to ensure that the loading wait groups include all applicable - // endpoints before any asynchronous calls to the Wait() methods. - // For restore purposes we treat TimeWait like a connected endpoint. - if epState.connected() || epState == StateTimeWait { - connectedLoading.Add(1) - } - switch { - case epState == StateListen: - listenLoading.Add(1) - case epState.connecting(): - connectingLoading.Add(1) - } - // Directly update the state here rather than using e.setEndpointState - // as the endpoint is still being loaded and the stack reference is not - // yet initialized. - e.state.Store(uint32(epState)) -} - -// afterLoad is invoked by stateify. -func (e *Endpoint) afterLoad(ctx context.Context) { - // RacyLoad() can be used because we are initializing e. - e.origEndpointState = e.state.RacyLoad() - // Restore the endpoint to InitialState as it will be moved to - // its origEndpointState during Restore. - e.state = atomicbitops.FromUint32(uint32(StateInitial)) - stack.RestoreStackFromContext(ctx).RegisterRestoredEndpoint(e) -} - -// Restore implements tcpip.RestoredEndpoint.Restore. -func (e *Endpoint) Restore(s *stack.Stack) { - if !e.EndpointState().closed() { - e.keepalive.timer.init(s.Clock(), timerHandler(e, e.keepaliveTimerExpired)) - } - if snd := e.snd; snd != nil { - snd.resendTimer.init(s.Clock(), timerHandler(e, e.snd.retransmitTimerExpired)) - snd.reorderTimer.init(s.Clock(), timerHandler(e, e.snd.rc.reorderTimerExpired)) - snd.probeTimer.init(s.Clock(), timerHandler(e, e.snd.probeTimerExpired)) - snd.corkTimer.init(s.Clock(), timerHandler(e, e.snd.corkTimerExpired)) - } - e.stack = s - e.protocol = protocolFromStack(s) - e.ops.InitHandler(e, e.stack, GetTCPSendBufferLimits, GetTCPReceiveBufferLimits) - e.segmentQueue.thaw() - - bind := func() { - e.mu.Lock() - defer e.mu.Unlock() - addr, _, err := e.checkV4MappedLocked(tcpip.FullAddress{Addr: e.BindAddr, Port: e.TransportEndpointInfo.ID.LocalPort}, true /* bind */) - if err != nil { - panic("unable to parse BindAddr: " + err.String()) - } - portRes := ports.Reservation{ - Networks: e.effectiveNetProtos, - Transport: ProtocolNumber, - Addr: addr.Addr, - Port: addr.Port, - Flags: e.boundPortFlags, - BindToDevice: e.boundBindToDevice, - Dest: e.boundDest, - } - if ok := e.stack.ReserveTuple(portRes); !ok { - panic(fmt.Sprintf("unable to re-reserve tuple (%v, %q, %d, %+v, %d, %v)", e.effectiveNetProtos, addr.Addr, addr.Port, e.boundPortFlags, e.boundBindToDevice, e.boundDest)) - } - e.isPortReserved = true - - // Mark endpoint as bound. - e.setEndpointState(StateBound) - } - - epState := EndpointState(e.origEndpointState) - switch { - case epState.connected(): - bind() - if e.connectingAddress.BitLen() == 0 { - e.connectingAddress = e.TransportEndpointInfo.ID.RemoteAddress - // This endpoint is accepted by netstack but not yet by - // the app. If the endpoint is IPv6 but the remote - // address is IPv4, we need to connect as IPv6 so that - // dual-stack mode can be properly activated. - if e.NetProto == header.IPv6ProtocolNumber && e.TransportEndpointInfo.ID.RemoteAddress.BitLen() != header.IPv6AddressSizeBits { - e.connectingAddress = tcpip.AddrFrom16Slice(append( - []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff}, - e.TransportEndpointInfo.ID.RemoteAddress.AsSlice()..., - )) - } - } - // Reset the scoreboard to reinitialize the sack information as - // we do not restore SACK information. - e.scoreboard.Reset() - e.mu.Lock() - err := e.connect(tcpip.FullAddress{NIC: e.boundNICID, Addr: e.connectingAddress, Port: e.TransportEndpointInfo.ID.RemotePort}, false /* handshake */) - if _, ok := err.(*tcpip.ErrConnectStarted); !ok { - panic("endpoint connecting failed: " + err.String()) - } - e.state.Store(e.origEndpointState) - // For FIN-WAIT-2 and TIME-WAIT we need to start the appropriate timers so - // that the socket is closed correctly. - switch epState { - case StateFinWait2: - e.finWait2Timer = e.stack.Clock().AfterFunc(e.tcpLingerTimeout, e.finWait2TimerExpired) - case StateTimeWait: - e.timeWaitTimer = e.stack.Clock().AfterFunc(e.getTimeWaitDuration(), e.timeWaitTimerExpired) - } - - if e.ops.GetCorkOption() { - // Rearm the timer if TCP_CORK is enabled which will - // drain all the segments in the queue after restore. - e.snd.corkTimer.enable(MinRTO) - } - e.mu.Unlock() - connectedLoading.Done() - case epState == StateListen: - tcpip.AsyncLoading.Add(1) - go func() { - connectedLoading.Wait() - bind() - e.acceptMu.Lock() - backlog := e.acceptQueue.capacity - e.acceptMu.Unlock() - if err := e.Listen(backlog); err != nil { - panic("endpoint listening failed: " + err.String()) - } - e.LockUser() - if e.shutdownFlags != 0 { - e.shutdownLocked(e.shutdownFlags) - } - e.UnlockUser() - listenLoading.Done() - tcpip.AsyncLoading.Done() - }() - case epState == StateConnecting: - // Initial SYN hasn't been sent yet so initiate a connect. - tcpip.AsyncLoading.Add(1) - go func() { - connectedLoading.Wait() - listenLoading.Wait() - bind() - err := e.Connect(tcpip.FullAddress{NIC: e.boundNICID, Addr: e.connectingAddress, Port: e.TransportEndpointInfo.ID.RemotePort}) - if _, ok := err.(*tcpip.ErrConnectStarted); !ok { - panic("endpoint connecting failed: " + err.String()) - } - connectingLoading.Done() - tcpip.AsyncLoading.Done() - }() - case epState == StateSynSent || epState == StateSynRecv: - connectedLoading.Wait() - listenLoading.Wait() - // Initial SYN has been sent/received so we should bind the - // ports start the retransmit timer for the SYNs and let it - // naturally complete the connection. - bind() - e.mu.Lock() - defer e.mu.Unlock() - e.setEndpointState(epState) - r, err := e.stack.FindRoute(e.boundNICID, e.TransportEndpointInfo.ID.LocalAddress, e.TransportEndpointInfo.ID.RemoteAddress, e.effectiveNetProtos[0], false /* multicastLoop */) - if err != nil { - panic(fmt.Sprintf("FindRoute failed when restoring endpoint w/ ID: %+v", e.ID)) - } - e.route = r - timer, err := newBackoffTimer(e.stack.Clock(), InitialRTO, MaxRTO, timerHandler(e, e.h.retransmitHandlerLocked)) - if err != nil { - panic(fmt.Sprintf("newBackOffTimer(_, %s, %s, _) failed: %s", InitialRTO, MaxRTO, err)) - } - e.h.retransmitTimer = timer - connectingLoading.Done() - case epState == StateBound: - tcpip.AsyncLoading.Add(1) - go func() { - connectedLoading.Wait() - listenLoading.Wait() - connectingLoading.Wait() - bind() - tcpip.AsyncLoading.Done() - }() - case epState == StateClose: - e.isPortReserved = false - e.state.Store(uint32(StateClose)) - e.stack.CompleteTransportEndpointCleanup(e) - tcpip.DeleteDanglingEndpoint(e) - case epState == StateError: - e.state.Store(uint32(StateError)) - e.stack.CompleteTransportEndpointCleanup(e) - tcpip.DeleteDanglingEndpoint(e) - } -} - -// Resume implements tcpip.ResumableEndpoint.Resume. -func (e *Endpoint) Resume() { - e.segmentQueue.thaw() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/forwarder.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/forwarder.go deleted file mode 100644 index 39a5221563..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/forwarder.go +++ /dev/null @@ -1,172 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/seqnum" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/waiter" -) - -// Forwarder is a connection request forwarder, which allows clients to decide -// what to do with a connection request, for example: ignore it, send a RST, or -// attempt to complete the 3-way handshake. -// -// The canonical way of using it is to pass the Forwarder.HandlePacket function -// to stack.SetTransportProtocolHandler. -type Forwarder struct { - stack *stack.Stack - - maxInFlight int - handler func(*ForwarderRequest) - - mu sync.Mutex - inFlight map[stack.TransportEndpointID]struct{} - listen *listenContext -} - -// NewForwarder allocates and initializes a new forwarder with the given -// maximum number of in-flight connection attempts. Once the maximum is reached -// new incoming connection requests will be ignored. -// -// If rcvWnd is set to zero, the default buffer size is used instead. -func NewForwarder(s *stack.Stack, rcvWnd, maxInFlight int, handler func(*ForwarderRequest)) *Forwarder { - if rcvWnd == 0 { - rcvWnd = DefaultReceiveBufferSize - } - return &Forwarder{ - stack: s, - maxInFlight: maxInFlight, - handler: handler, - inFlight: make(map[stack.TransportEndpointID]struct{}), - listen: newListenContext(s, protocolFromStack(s), nil /* listenEP */, seqnum.Size(rcvWnd), true, 0), - } -} - -// HandlePacket handles a packet if it is of interest to the forwarder (i.e., if -// it's a SYN packet), returning true if it's the case. Otherwise the packet -// is not handled and false is returned. -// -// This function is expected to be passed as an argument to the -// stack.SetTransportProtocolHandler function. -func (f *Forwarder) HandlePacket(id stack.TransportEndpointID, pkt *stack.PacketBuffer) bool { - s, err := newIncomingSegment(id, f.stack.Clock(), pkt) - if err != nil { - return false - } - defer s.DecRef() - - // We only care about well-formed SYN packets (not SYN-ACK) packets. - if !s.csumValid || !s.flags.Contains(header.TCPFlagSyn) || s.flags.Contains(header.TCPFlagAck) { - return false - } - - opts := parseSynSegmentOptions(s) - - f.mu.Lock() - defer f.mu.Unlock() - - // We have an inflight request for this id, ignore this one for now. - if _, ok := f.inFlight[id]; ok { - return true - } - - // Ignore the segment if we're beyond the limit. - if len(f.inFlight) >= f.maxInFlight { - f.stack.Stats().TCP.ForwardMaxInFlightDrop.Increment() - return true - } - - // Launch a new goroutine to handle the request. - f.inFlight[id] = struct{}{} - s.IncRef() - go f.handler(&ForwarderRequest{ // S/R-SAFE: not used by Sentry. - forwarder: f, - segment: s, - synOptions: opts, - }) - - return true -} - -// ForwarderRequest represents a connection request received by the forwarder -// and passed to the client. Clients must eventually call Complete() on it, and -// may optionally create an endpoint to represent it via CreateEndpoint. -type ForwarderRequest struct { - mu sync.Mutex - forwarder *Forwarder - segment *segment - synOptions header.TCPSynOptions -} - -// ID returns the 4-tuple (src address, src port, dst address, dst port) that -// represents the connection request. -func (r *ForwarderRequest) ID() stack.TransportEndpointID { - return r.segment.id -} - -// Complete completes the request, and optionally sends a RST segment back to the -// sender. -func (r *ForwarderRequest) Complete(sendReset bool) { - r.mu.Lock() - defer r.mu.Unlock() - - if r.segment == nil { - panic("Completing already completed forwarder request") - } - - // Remove request from the forwarder. - r.forwarder.mu.Lock() - delete(r.forwarder.inFlight, r.segment.id) - r.forwarder.mu.Unlock() - - if sendReset { - replyWithReset(r.forwarder.stack, r.segment, stack.DefaultTOS, tcpip.UseDefaultIPv4TTL, tcpip.UseDefaultIPv6HopLimit) - } - - // Release all resources. - r.segment.DecRef() - r.segment = nil - r.forwarder = nil -} - -// CreateEndpoint creates a TCP endpoint for the connection request, performing -// the 3-way handshake in the process. -func (r *ForwarderRequest) CreateEndpoint(queue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - r.mu.Lock() - defer r.mu.Unlock() - - if r.segment == nil { - return nil, &tcpip.ErrInvalidEndpointState{} - } - - f := r.forwarder - ep, err := f.listen.performHandshake(r.segment, header.TCPSynOptions{ - MSS: r.synOptions.MSS, - WS: r.synOptions.WS, - TS: r.synOptions.TS, - TSVal: r.synOptions.TSVal, - TSEcr: r.synOptions.TSEcr, - SACKPermitted: r.synOptions.SACKPermitted, - }, queue, nil) - if err != nil { - return nil, err - } - - return ep, nil -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/protocol.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/protocol.go deleted file mode 100644 index 73829ac488..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/protocol.go +++ /dev/null @@ -1,573 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package tcp contains the implementation of the TCP transport protocol. -package tcp - -import ( - "crypto/sha256" - "encoding/binary" - "fmt" - "runtime" - "strings" - "time" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/header/parse" - "gvisor.dev/gvisor/pkg/tcpip/internal/tcp" - "gvisor.dev/gvisor/pkg/tcpip/seqnum" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport/raw" - "gvisor.dev/gvisor/pkg/waiter" -) - -const ( - // ProtocolNumber is the tcp protocol number. - ProtocolNumber = header.TCPProtocolNumber - - // MinBufferSize is the smallest size of a receive or send buffer. - MinBufferSize = 4 << 10 // 4096 bytes. - - // DefaultSendBufferSize is the default size of the send buffer for - // an endpoint. - DefaultSendBufferSize = 1 << 20 // 1MB - - // DefaultReceiveBufferSize is the default size of the receive buffer - // for an endpoint. - DefaultReceiveBufferSize = 1 << 20 // 1MB - - // MaxBufferSize is the largest size a receive/send buffer can grow to. - MaxBufferSize = 4 << 20 // 4MB - - // DefaultTCPLingerTimeout is the amount of time that sockets linger in - // FIN_WAIT_2 state before being marked closed. - DefaultTCPLingerTimeout = 60 * time.Second - - // MaxTCPLingerTimeout is the maximum amount of time that sockets - // linger in FIN_WAIT_2 state before being marked closed. - MaxTCPLingerTimeout = 120 * time.Second - - // DefaultTCPTimeWaitTimeout is the amount of time that sockets linger - // in TIME_WAIT state before being marked closed. - DefaultTCPTimeWaitTimeout = 60 * time.Second - - // DefaultSynRetries is the default value for the number of SYN retransmits - // before a connect is aborted. - DefaultSynRetries = 6 - - // DefaultKeepaliveIdle is the idle time for a connection before keep-alive - // probes are sent. - DefaultKeepaliveIdle = 2 * time.Hour - - // DefaultKeepaliveInterval is the time between two successive keep-alive - // probes. - DefaultKeepaliveInterval = 75 * time.Second - - // DefaultKeepaliveCount is the number of keep-alive probes that are sent - // before declaring the connection dead. - DefaultKeepaliveCount = 9 -) - -const ( - ccReno = "reno" - ccCubic = "cubic" -) - -// +stateify savable -type protocol struct { - stack *stack.Stack - - mu sync.RWMutex `state:"nosave"` - sackEnabled bool - recovery tcpip.TCPRecovery - delayEnabled bool - alwaysUseSynCookies bool - sendBufferSize tcpip.TCPSendBufferSizeRangeOption - recvBufferSize tcpip.TCPReceiveBufferSizeRangeOption - congestionControl string - availableCongestionControl []string - moderateReceiveBuffer bool - lingerTimeout time.Duration - timeWaitTimeout time.Duration - timeWaitReuse tcpip.TCPTimeWaitReuseOption - minRTO time.Duration - maxRTO time.Duration - maxRetries uint32 - synRetries uint8 - dispatcher dispatcher - - // The following secrets are initialized once and stay unchanged after. - seqnumSecret [16]byte - tsOffsetSecret [16]byte -} - -// Number returns the tcp protocol number. -func (*protocol) Number() tcpip.TransportProtocolNumber { - return ProtocolNumber -} - -// NewEndpoint creates a new tcp endpoint. -func (p *protocol) NewEndpoint(netProto tcpip.NetworkProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - return newEndpoint(p.stack, p, netProto, waiterQueue), nil -} - -// NewRawEndpoint creates a new raw TCP endpoint. Raw TCP sockets are currently -// unsupported. It implements stack.TransportProtocol.NewRawEndpoint. -func (p *protocol) NewRawEndpoint(netProto tcpip.NetworkProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - return raw.NewEndpoint(p.stack, netProto, header.TCPProtocolNumber, waiterQueue) -} - -// MinimumPacketSize returns the minimum valid tcp packet size. -func (*protocol) MinimumPacketSize() int { - return header.TCPMinimumSize -} - -// ParsePorts returns the source and destination ports stored in the given tcp -// packet. -func (*protocol) ParsePorts(v []byte) (src, dst uint16, err tcpip.Error) { - h := header.TCP(v) - return h.SourcePort(), h.DestinationPort(), nil -} - -// QueuePacket queues packets targeted at an endpoint after hashing the packet -// to a specific processing queue. Each queue is serviced by its own processor -// goroutine which is responsible for dequeuing and doing full TCP dispatch of -// the packet. -func (p *protocol) QueuePacket(ep stack.TransportEndpoint, id stack.TransportEndpointID, pkt *stack.PacketBuffer) { - p.dispatcher.queuePacket(ep, id, p.stack.Clock(), pkt) -} - -// HandleUnknownDestinationPacket handles packets targeted at this protocol but -// that don't match any existing endpoint. -// -// RFC 793, page 36, states that "If the connection does not exist (CLOSED) then -// a reset is sent in response to any incoming segment except another reset. In -// particular, SYNs addressed to a non-existent connection are rejected by this -// means." -func (p *protocol) HandleUnknownDestinationPacket(id stack.TransportEndpointID, pkt *stack.PacketBuffer) stack.UnknownDestinationPacketDisposition { - s, err := newIncomingSegment(id, p.stack.Clock(), pkt) - if err != nil { - return stack.UnknownDestinationPacketMalformed - } - defer s.DecRef() - if !s.csumValid { - return stack.UnknownDestinationPacketMalformed - } - - if !s.flags.Contains(header.TCPFlagRst) { - replyWithReset(p.stack, s, stack.DefaultTOS, tcpip.UseDefaultIPv4TTL, tcpip.UseDefaultIPv6HopLimit) - } - - return stack.UnknownDestinationPacketHandled -} - -func (p *protocol) tsOffset(src, dst tcpip.Address) tcp.TSOffset { - // Initialize a random tsOffset that will be added to the recentTS - // everytime the timestamp is sent when the Timestamp option is enabled. - // - // See https://tools.ietf.org/html/rfc7323#section-5.4 for details on - // why this is required. - h := sha256.New() - - // Per hash.Hash.Writer: - // - // It never returns an error. - _, _ = h.Write(p.tsOffsetSecret[:]) - _, _ = h.Write(src.AsSlice()) - _, _ = h.Write(dst.AsSlice()) - return tcp.NewTSOffset(binary.LittleEndian.Uint32(h.Sum(nil)[:4])) -} - -// replyWithReset replies to the given segment with a reset segment. -// -// If the relevant TTL has its reset value (0 for ipv4TTL, -1 for ipv6HopLimit), -// then the route's default TTL will be used. -func replyWithReset(st *stack.Stack, s *segment, tos, ipv4TTL uint8, ipv6HopLimit int16) tcpip.Error { - net := s.pkt.Network() - route, err := st.FindRoute(s.pkt.NICID, net.DestinationAddress(), net.SourceAddress(), s.pkt.NetworkProtocolNumber, false /* multicastLoop */) - if err != nil { - return err - } - defer route.Release() - - ttl := calculateTTL(route, ipv4TTL, ipv6HopLimit) - - // Get the seqnum from the packet if the ack flag is set. - seq := seqnum.Value(0) - ack := seqnum.Value(0) - flags := header.TCPFlagRst - // As per RFC 793 page 35 (Reset Generation) - // 1. If the connection does not exist (CLOSED) then a reset is sent - // in response to any incoming segment except another reset. In - // particular, SYNs addressed to a non-existent connection are rejected - // by this means. - - // If the incoming segment has an ACK field, the reset takes its - // sequence number from the ACK field of the segment, otherwise the - // reset has sequence number zero and the ACK field is set to the sum - // of the sequence number and segment length of the incoming segment. - // The connection remains in the CLOSED state. - if s.flags.Contains(header.TCPFlagAck) { - seq = s.ackNumber - } else { - flags |= header.TCPFlagAck - ack = s.sequenceNumber.Add(s.logicalLen()) - } - - p := stack.NewPacketBuffer(stack.PacketBufferOptions{ReserveHeaderBytes: header.TCPMinimumSize + int(route.MaxHeaderLength())}) - defer p.DecRef() - return sendTCP(route, tcpFields{ - id: s.id, - ttl: ttl, - tos: tos, - flags: flags, - seq: seq, - ack: ack, - rcvWnd: 0, - }, p, stack.GSO{}, nil /* PacketOwner */) -} - -// SetOption implements stack.TransportProtocol.SetOption. -func (p *protocol) SetOption(option tcpip.SettableTransportProtocolOption) tcpip.Error { - switch v := option.(type) { - case *tcpip.TCPSACKEnabled: - p.mu.Lock() - p.sackEnabled = bool(*v) - p.mu.Unlock() - return nil - - case *tcpip.TCPRecovery: - p.mu.Lock() - p.recovery = *v - p.mu.Unlock() - return nil - - case *tcpip.TCPDelayEnabled: - p.mu.Lock() - p.delayEnabled = bool(*v) - p.mu.Unlock() - return nil - - case *tcpip.TCPSendBufferSizeRangeOption: - if v.Min <= 0 || v.Default < v.Min || v.Default > v.Max { - return &tcpip.ErrInvalidOptionValue{} - } - p.mu.Lock() - p.sendBufferSize = *v - p.mu.Unlock() - return nil - - case *tcpip.TCPReceiveBufferSizeRangeOption: - if v.Min <= 0 || v.Default < v.Min || v.Default > v.Max { - return &tcpip.ErrInvalidOptionValue{} - } - p.mu.Lock() - p.recvBufferSize = *v - p.mu.Unlock() - return nil - - case *tcpip.CongestionControlOption: - for _, c := range p.availableCongestionControl { - if string(*v) == c { - p.mu.Lock() - p.congestionControl = string(*v) - p.mu.Unlock() - return nil - } - } - // linux returns ENOENT when an invalid congestion control - // is specified. - return &tcpip.ErrNoSuchFile{} - - case *tcpip.TCPModerateReceiveBufferOption: - p.mu.Lock() - p.moderateReceiveBuffer = bool(*v) - p.mu.Unlock() - return nil - - case *tcpip.TCPLingerTimeoutOption: - p.mu.Lock() - if *v < 0 { - p.lingerTimeout = 0 - } else { - p.lingerTimeout = time.Duration(*v) - } - p.mu.Unlock() - return nil - - case *tcpip.TCPTimeWaitTimeoutOption: - p.mu.Lock() - if *v < 0 { - p.timeWaitTimeout = 0 - } else { - p.timeWaitTimeout = time.Duration(*v) - } - p.mu.Unlock() - return nil - - case *tcpip.TCPTimeWaitReuseOption: - if *v < tcpip.TCPTimeWaitReuseDisabled || *v > tcpip.TCPTimeWaitReuseLoopbackOnly { - return &tcpip.ErrInvalidOptionValue{} - } - p.mu.Lock() - p.timeWaitReuse = *v - p.mu.Unlock() - return nil - - case *tcpip.TCPMinRTOOption: - p.mu.Lock() - defer p.mu.Unlock() - if *v < 0 { - p.minRTO = MinRTO - } else if minRTO := time.Duration(*v); minRTO <= p.maxRTO { - p.minRTO = minRTO - } else { - return &tcpip.ErrInvalidOptionValue{} - } - return nil - - case *tcpip.TCPMaxRTOOption: - p.mu.Lock() - defer p.mu.Unlock() - if *v < 0 { - p.maxRTO = MaxRTO - } else if maxRTO := time.Duration(*v); maxRTO >= p.minRTO { - p.maxRTO = maxRTO - } else { - return &tcpip.ErrInvalidOptionValue{} - } - return nil - - case *tcpip.TCPMaxRetriesOption: - p.mu.Lock() - p.maxRetries = uint32(*v) - p.mu.Unlock() - return nil - - case *tcpip.TCPAlwaysUseSynCookies: - p.mu.Lock() - p.alwaysUseSynCookies = bool(*v) - p.mu.Unlock() - return nil - - case *tcpip.TCPSynRetriesOption: - if *v < 1 { - return &tcpip.ErrInvalidOptionValue{} - } - p.mu.Lock() - p.synRetries = uint8(*v) - p.mu.Unlock() - return nil - - default: - return &tcpip.ErrUnknownProtocolOption{} - } -} - -// Option implements stack.TransportProtocol.Option. -func (p *protocol) Option(option tcpip.GettableTransportProtocolOption) tcpip.Error { - switch v := option.(type) { - case *tcpip.TCPSACKEnabled: - p.mu.RLock() - *v = tcpip.TCPSACKEnabled(p.sackEnabled) - p.mu.RUnlock() - return nil - - case *tcpip.TCPRecovery: - p.mu.RLock() - *v = p.recovery - p.mu.RUnlock() - return nil - - case *tcpip.TCPDelayEnabled: - p.mu.RLock() - *v = tcpip.TCPDelayEnabled(p.delayEnabled) - p.mu.RUnlock() - return nil - - case *tcpip.TCPSendBufferSizeRangeOption: - p.mu.RLock() - *v = p.sendBufferSize - p.mu.RUnlock() - return nil - - case *tcpip.TCPReceiveBufferSizeRangeOption: - p.mu.RLock() - *v = p.recvBufferSize - p.mu.RUnlock() - return nil - - case *tcpip.CongestionControlOption: - p.mu.RLock() - *v = tcpip.CongestionControlOption(p.congestionControl) - p.mu.RUnlock() - return nil - - case *tcpip.TCPAvailableCongestionControlOption: - p.mu.RLock() - *v = tcpip.TCPAvailableCongestionControlOption(strings.Join(p.availableCongestionControl, " ")) - p.mu.RUnlock() - return nil - - case *tcpip.TCPModerateReceiveBufferOption: - p.mu.RLock() - *v = tcpip.TCPModerateReceiveBufferOption(p.moderateReceiveBuffer) - p.mu.RUnlock() - return nil - - case *tcpip.TCPLingerTimeoutOption: - p.mu.RLock() - *v = tcpip.TCPLingerTimeoutOption(p.lingerTimeout) - p.mu.RUnlock() - return nil - - case *tcpip.TCPTimeWaitTimeoutOption: - p.mu.RLock() - *v = tcpip.TCPTimeWaitTimeoutOption(p.timeWaitTimeout) - p.mu.RUnlock() - return nil - - case *tcpip.TCPTimeWaitReuseOption: - p.mu.RLock() - *v = p.timeWaitReuse - p.mu.RUnlock() - return nil - - case *tcpip.TCPMinRTOOption: - p.mu.RLock() - *v = tcpip.TCPMinRTOOption(p.minRTO) - p.mu.RUnlock() - return nil - - case *tcpip.TCPMaxRTOOption: - p.mu.RLock() - *v = tcpip.TCPMaxRTOOption(p.maxRTO) - p.mu.RUnlock() - return nil - - case *tcpip.TCPMaxRetriesOption: - p.mu.RLock() - *v = tcpip.TCPMaxRetriesOption(p.maxRetries) - p.mu.RUnlock() - return nil - - case *tcpip.TCPAlwaysUseSynCookies: - p.mu.RLock() - *v = tcpip.TCPAlwaysUseSynCookies(p.alwaysUseSynCookies) - p.mu.RUnlock() - return nil - - case *tcpip.TCPSynRetriesOption: - p.mu.RLock() - *v = tcpip.TCPSynRetriesOption(p.synRetries) - p.mu.RUnlock() - return nil - - default: - return &tcpip.ErrUnknownProtocolOption{} - } -} - -// SendBufferSize implements stack.SendBufSizeProto. -func (p *protocol) SendBufferSize() tcpip.TCPSendBufferSizeRangeOption { - p.mu.RLock() - defer p.mu.RUnlock() - return p.sendBufferSize -} - -// Close implements stack.TransportProtocol.Close. -func (p *protocol) Close() { - p.dispatcher.close() -} - -// Wait implements stack.TransportProtocol.Wait. -func (p *protocol) Wait() { - p.dispatcher.wait() -} - -// Pause implements stack.TransportProtocol.Pause. -func (p *protocol) Pause() { - p.dispatcher.pause() -} - -// Resume implements stack.TransportProtocol.Resume. -func (p *protocol) Resume() { - p.dispatcher.resume() -} - -// Parse implements stack.TransportProtocol.Parse. -func (*protocol) Parse(pkt *stack.PacketBuffer) bool { - return parse.TCP(pkt) -} - -// NewProtocol returns a TCP transport protocol with Reno congestion control. -func NewProtocol(s *stack.Stack) stack.TransportProtocol { - return newProtocol(s, ccReno) -} - -// NewProtocolCUBIC returns a TCP transport protocol with CUBIC congestion -// control. -// -// TODO(b/345835636): Remove this and make CUBIC the default across the board. -func NewProtocolCUBIC(s *stack.Stack) stack.TransportProtocol { - return newProtocol(s, ccCubic) -} - -func newProtocol(s *stack.Stack, cc string) stack.TransportProtocol { - rng := s.SecureRNG() - var seqnumSecret [16]byte - var tsOffsetSecret [16]byte - if n, err := rng.Reader.Read(seqnumSecret[:]); err != nil || n != len(seqnumSecret) { - panic(fmt.Sprintf("Read() failed: %v", err)) - } - if n, err := rng.Reader.Read(tsOffsetSecret[:]); err != nil || n != len(tsOffsetSecret) { - panic(fmt.Sprintf("Read() failed: %v", err)) - } - p := protocol{ - stack: s, - sendBufferSize: tcpip.TCPSendBufferSizeRangeOption{ - Min: MinBufferSize, - Default: DefaultSendBufferSize, - Max: MaxBufferSize, - }, - recvBufferSize: tcpip.TCPReceiveBufferSizeRangeOption{ - Min: MinBufferSize, - Default: DefaultReceiveBufferSize, - Max: MaxBufferSize, - }, - sackEnabled: true, - congestionControl: cc, - availableCongestionControl: []string{ccReno, ccCubic}, - moderateReceiveBuffer: true, - lingerTimeout: DefaultTCPLingerTimeout, - timeWaitTimeout: DefaultTCPTimeWaitTimeout, - timeWaitReuse: tcpip.TCPTimeWaitReuseLoopbackOnly, - synRetries: DefaultSynRetries, - minRTO: MinRTO, - maxRTO: MaxRTO, - maxRetries: MaxRetries, - recovery: tcpip.TCPRACKLossDetection, - seqnumSecret: seqnumSecret, - tsOffsetSecret: tsOffsetSecret, - } - p.dispatcher.init(s.InsecureRNG(), runtime.GOMAXPROCS(0)) - return &p -} - -// protocolFromStack retrieves the tcp.protocol instance from stack s. -func protocolFromStack(s *stack.Stack) *protocol { - return s.TransportProtocolInstance(ProtocolNumber).(*protocol) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/rack.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/rack.go deleted file mode 100644 index 66ea6e5b0a..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/rack.go +++ /dev/null @@ -1,452 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "time" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/seqnum" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -const ( - // wcDelayedACKTimeout is the recommended maximum delayed ACK timer - // value as defined in the RFC. It stands for worst case delayed ACK - // timer (WCDelAckT). When FlightSize is 1, PTO is inflated by - // WCDelAckT time to compensate for a potential long delayed ACK timer - // at the receiver. - // See: https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.5. - wcDelayedACKTimeout = 200 * time.Millisecond - - // tcpRACKRecoveryThreshold is the number of loss recoveries for which - // the reorder window is inflated and after that the reorder window is - // reset to its initial value of minRTT/4. - // See: https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.2. - tcpRACKRecoveryThreshold = 16 -) - -// RACK is a loss detection algorithm used in TCP to detect packet loss and -// reordering using transmission timestamp of the packets instead of packet or -// sequence counts. To use RACK, SACK should be enabled on the connection. - -// rackControl stores the rack related fields. -// See: https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-6.1 -// -// +stateify savable -type rackControl struct { - stack.TCPRACKState - - // exitedRecovery indicates if the connection is exiting loss recovery. - // This flag is set if the sender is leaving the recovery after - // receiving an ACK and is reset during updating of reorder window. - exitedRecovery bool - - // minRTT is the estimated minimum RTT of the connection. - minRTT time.Duration - - // tlpRxtOut indicates whether there is an unacknowledged - // TLP retransmission. - tlpRxtOut bool - - // tlpHighRxt the value of sender.sndNxt at the time of sending - // a TLP retransmission. - tlpHighRxt seqnum.Value - - // snd is a reference to the sender. - snd *sender -} - -// init initializes RACK specific fields. -func (rc *rackControl) init(snd *sender, iss seqnum.Value) { - rc.FACK = iss - rc.ReoWndIncr = 1 - rc.snd = snd -} - -// update will update the RACK related fields when an ACK has been received. -// See: https://tools.ietf.org/html/draft-ietf-tcpm-rack-09#section-6.2 -func (rc *rackControl) update(seg *segment, ackSeg *segment) { - rtt := rc.snd.ep.stack.Clock().NowMonotonic().Sub(seg.xmitTime) - - // If the ACK is for a retransmitted packet, do not update if it is a - // spurious inference which is determined by below checks: - // 1. When Timestamping option is available, if the TSVal is less than - // the transmit time of the most recent retransmitted packet. - // 2. When RTT calculated for the packet is less than the smoothed RTT - // for the connection. - // See: https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.2 - // step 2 - if seg.xmitCount > 1 { - if ackSeg.parsedOptions.TS && ackSeg.parsedOptions.TSEcr != 0 { - if ackSeg.parsedOptions.TSEcr < rc.snd.ep.tsVal(seg.xmitTime) { - return - } - } - if rtt < rc.minRTT { - return - } - } - - rc.RTT = rtt - - // The sender can either track a simple global minimum of all RTT - // measurements from the connection, or a windowed min-filtered value - // of recent RTT measurements. This implementation keeps track of the - // simple global minimum of all RTTs for the connection. - if rtt < rc.minRTT || rc.minRTT == 0 { - rc.minRTT = rtt - } - - // Update rc.xmitTime and rc.endSequence to the transmit time and - // ending sequence number of the packet which has been acknowledged - // most recently. - endSeq := seg.sequenceNumber.Add(seqnum.Size(seg.payloadSize())) - if rc.XmitTime.Before(seg.xmitTime) || (seg.xmitTime == rc.XmitTime && rc.EndSequence.LessThan(endSeq)) { - rc.XmitTime = seg.xmitTime - rc.EndSequence = endSeq - } -} - -// detectReorder detects if packet reordering has been observed. -// See: https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.2 -// - Step 3: Detect data segment reordering. -// To detect reordering, the sender looks for original data segments being -// delivered out of order. To detect such cases, the sender tracks the -// highest sequence selectively or cumulatively acknowledged in the RACK.fack -// variable. The name "fack" stands for the most "Forward ACK" (this term is -// adopted from [FACK]). If a never retransmitted segment that's below -// RACK.fack is (selectively or cumulatively) acknowledged, it has been -// delivered out of order. The sender sets RACK.reord to TRUE if such segment -// is identified. -func (rc *rackControl) detectReorder(seg *segment) { - endSeq := seg.sequenceNumber.Add(seqnum.Size(seg.payloadSize())) - if rc.FACK.LessThan(endSeq) { - rc.FACK = endSeq - return - } - - if endSeq.LessThan(rc.FACK) && seg.xmitCount == 1 { - rc.Reord = true - } -} - -func (rc *rackControl) setDSACKSeen(dsackSeen bool) { - rc.DSACKSeen = dsackSeen -} - -// shouldSchedulePTO dictates whether we should schedule a PTO or not. -// See https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.5.1. -func (s *sender) shouldSchedulePTO() bool { - // Schedule PTO only if RACK loss detection is enabled. - return s.ep.tcpRecovery&tcpip.TCPRACKLossDetection != 0 && - // The connection supports SACK. - s.ep.SACKPermitted && - // The connection is not in loss recovery. - (s.state != tcpip.RTORecovery && s.state != tcpip.SACKRecovery) && - // The connection has no SACKed sequences in the SACK scoreboard. - s.ep.scoreboard.Sacked() == 0 -} - -// schedulePTO schedules the probe timeout as defined in -// https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.5.1. -func (s *sender) schedulePTO() { - pto := time.Second - s.rtt.Lock() - if s.rtt.TCPRTTState.SRTTInited && s.rtt.TCPRTTState.SRTT > 0 { - pto = s.rtt.TCPRTTState.SRTT * 2 - if s.Outstanding == 1 { - pto += wcDelayedACKTimeout - } - } - s.rtt.Unlock() - - now := s.ep.stack.Clock().NowMonotonic() - if s.resendTimer.enabled() { - if now.Add(pto).After(s.resendTimer.target) { - pto = s.resendTimer.target.Sub(now) - } - s.resendTimer.disable() - } - - s.probeTimer.enable(pto) -} - -// probeTimerExpired is the same as TLP_send_probe() as defined in -// https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.5.2. -// -// +checklocks:s.ep.mu -func (s *sender) probeTimerExpired() tcpip.Error { - if s.probeTimer.isUninitialized() || !s.probeTimer.checkExpiration() { - return nil - } - - var dataSent bool - if s.writeNext != nil && s.writeNext.xmitCount == 0 && s.Outstanding < s.SndCwnd { - dataSent = s.maybeSendSegment(s.writeNext, int(s.ep.scoreboard.SMSS()), s.SndUna.Add(s.SndWnd)) - if dataSent { - s.Outstanding += s.pCount(s.writeNext, s.MaxPayloadSize) - s.updateWriteNext(s.writeNext.Next()) - } - } - - if !dataSent && !s.rc.tlpRxtOut { - var highestSeqXmit *segment - for highestSeqXmit = s.writeList.Front(); highestSeqXmit != nil; highestSeqXmit = highestSeqXmit.Next() { - if highestSeqXmit.xmitCount == 0 { - // Nothing in writeList is transmitted, no need to send a probe. - highestSeqXmit = nil - break - } - if highestSeqXmit.Next() == nil || highestSeqXmit.Next().xmitCount == 0 { - // Either everything in writeList has been transmitted or the next - // sequence has not been transmitted. Either way this is the highest - // sequence segment that was transmitted. - break - } - } - - if highestSeqXmit != nil { - dataSent = s.maybeSendSegment(highestSeqXmit, int(s.ep.scoreboard.SMSS()), s.SndUna.Add(s.SndWnd)) - if dataSent { - s.rc.tlpRxtOut = true - s.rc.tlpHighRxt = s.SndNxt - } - } - } - - // Whether or not the probe was sent, the sender must arm the resend timer, - // not the probe timer. This ensures that the sender does not send repeated, - // back-to-back tail loss probes. - s.postXmit(dataSent, false /* shouldScheduleProbe */) - return nil -} - -// detectTLPRecovery detects if recovery was accomplished by the loss probes -// and updates TLP state accordingly. -// See https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.6.3. -func (s *sender) detectTLPRecovery(ack seqnum.Value, rcvdSeg *segment) { - if !(s.ep.SACKPermitted && s.rc.tlpRxtOut) { - return - } - - // Step 1. - if s.isDupAck(rcvdSeg) && ack == s.rc.tlpHighRxt { - var sbAboveTLPHighRxt bool - for _, sb := range rcvdSeg.parsedOptions.SACKBlocks { - if s.rc.tlpHighRxt.LessThan(sb.End) { - sbAboveTLPHighRxt = true - break - } - } - if !sbAboveTLPHighRxt { - // TLP episode is complete. - s.rc.tlpRxtOut = false - } - } - - if s.rc.tlpRxtOut && s.rc.tlpHighRxt.LessThanEq(ack) { - // TLP episode is complete. - s.rc.tlpRxtOut = false - if !checkDSACK(rcvdSeg) { - // Step 2. Either the original packet or the retransmission (in the - // form of a probe) was lost. Invoke a congestion control response - // equivalent to fast recovery. - s.cc.HandleLossDetected() - s.enterRecovery() - s.leaveRecovery() - } - } -} - -// updateRACKReorderWindow updates the reorder window. -// See: https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.2 -// - Step 4: Update RACK reordering window -// To handle the prevalent small degree of reordering, RACK.reo_wnd serves as -// an allowance for settling time before marking a packet lost. RACK starts -// initially with a conservative window of min_RTT/4. If no reordering has -// been observed RACK uses reo_wnd of zero during loss recovery, in order to -// retransmit quickly, or when the number of DUPACKs exceeds the classic -// DUPACKthreshold. -func (rc *rackControl) updateRACKReorderWindow() { - dsackSeen := rc.DSACKSeen - snd := rc.snd - - // React to DSACK once per round trip. - // If SND.UNA < RACK.rtt_seq: - // RACK.dsack = false - if snd.SndUna.LessThan(rc.RTTSeq) { - dsackSeen = false - } - - // If RACK.dsack: - // RACK.reo_wnd_incr += 1 - // RACK.dsack = false - // RACK.rtt_seq = SND.NXT - // RACK.reo_wnd_persist = 16 - if dsackSeen { - rc.ReoWndIncr++ - dsackSeen = false - rc.RTTSeq = snd.SndNxt - rc.ReoWndPersist = tcpRACKRecoveryThreshold - } else if rc.exitedRecovery { - // Else if exiting loss recovery: - // RACK.reo_wnd_persist -= 1 - // If RACK.reo_wnd_persist <= 0: - // RACK.reo_wnd_incr = 1 - rc.ReoWndPersist-- - if rc.ReoWndPersist <= 0 { - rc.ReoWndIncr = 1 - } - rc.exitedRecovery = false - } - - // Reorder window is zero during loss recovery, or when the number of - // DUPACKs exceeds the classic DUPACKthreshold. - // If RACK.reord is FALSE: - // If in loss recovery: (If in fast or timeout recovery) - // RACK.reo_wnd = 0 - // Return - // Else if RACK.pkts_sacked >= RACK.dupthresh: - // RACK.reo_wnd = 0 - // return - if !rc.Reord { - if snd.state == tcpip.RTORecovery || snd.state == tcpip.SACKRecovery { - rc.ReoWnd = 0 - return - } - - if snd.SackedOut >= nDupAckThreshold { - rc.ReoWnd = 0 - return - } - } - - // Calculate reorder window. - // RACK.reo_wnd = RACK.min_RTT / 4 * RACK.reo_wnd_incr - // RACK.reo_wnd = min(RACK.reo_wnd, SRTT) - snd.rtt.Lock() - srtt := snd.rtt.TCPRTTState.SRTT - snd.rtt.Unlock() - rc.ReoWnd = time.Duration((int64(rc.minRTT) / 4) * int64(rc.ReoWndIncr)) - if srtt < rc.ReoWnd { - rc.ReoWnd = srtt - } -} - -func (rc *rackControl) exitRecovery() { - rc.exitedRecovery = true -} - -// detectLoss marks the segment as lost if the reordering window has elapsed -// and the ACK is not received. It will also arm the reorder timer. -// See: https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.2 Step 5. -func (rc *rackControl) detectLoss(rcvTime tcpip.MonotonicTime) int { - var timeout time.Duration - numLost := 0 - for seg := rc.snd.writeList.Front(); seg != nil && seg.xmitCount != 0; seg = seg.Next() { - if rc.snd.ep.scoreboard.IsSACKED(seg.sackBlock()) { - continue - } - - if seg.lost && seg.xmitCount == 1 { - numLost++ - continue - } - - endSeq := seg.sequenceNumber.Add(seqnum.Size(seg.payloadSize())) - if seg.xmitTime.Before(rc.XmitTime) || (seg.xmitTime == rc.XmitTime && rc.EndSequence.LessThan(endSeq)) { - timeRemaining := seg.xmitTime.Sub(rcvTime) + rc.RTT + rc.ReoWnd - if timeRemaining <= 0 { - seg.lost = true - numLost++ - } else if timeRemaining > timeout { - timeout = timeRemaining - } - } - } - - if timeout != 0 && !rc.snd.reorderTimer.enabled() { - rc.snd.reorderTimer.enable(timeout) - } - return numLost -} - -// reorderTimerExpired will retransmit the segments which have not been acked -// before the reorder timer expired. -// -// +checklocks:rc.snd.ep.mu -func (rc *rackControl) reorderTimerExpired() tcpip.Error { - if rc.snd.reorderTimer.isUninitialized() || !rc.snd.reorderTimer.checkExpiration() { - return nil - } - - numLost := rc.detectLoss(rc.snd.ep.stack.Clock().NowMonotonic()) - if numLost == 0 { - return nil - } - - fastRetransmit := false - if !rc.snd.FastRecovery.Active { - rc.snd.cc.HandleLossDetected() - rc.snd.enterRecovery() - fastRetransmit = true - } - - rc.DoRecovery(nil, fastRetransmit) - return nil -} - -// DoRecovery implements lossRecovery.DoRecovery. -// -// +checklocks:rc.snd.ep.mu -func (rc *rackControl) DoRecovery(_ *segment, fastRetransmit bool) { - snd := rc.snd - if fastRetransmit { - snd.resendSegment() - } - - var dataSent bool - // Iterate the writeList and retransmit the segments which are marked - // as lost by RACK. - for seg := snd.writeList.Front(); seg != nil && seg.xmitCount > 0; seg = seg.Next() { - if seg == snd.writeNext { - break - } - - if !seg.lost { - continue - } - - // Reset seg.lost as it is already SACKed. - if snd.ep.scoreboard.IsSACKED(seg.sackBlock()) { - seg.lost = false - continue - } - - // Check the congestion window after entering recovery. - if snd.Outstanding >= snd.SndCwnd { - break - } - - if sent := snd.maybeSendSegment(seg, int(snd.ep.scoreboard.SMSS()), snd.SndUna.Add(snd.SndWnd)); !sent { - break - } - dataSent = true - snd.Outstanding += snd.pCount(seg, snd.MaxPayloadSize) - } - - snd.postXmit(dataSent, true /* shouldScheduleProbe */) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/rcv.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/rcv.go deleted file mode 100644 index 349f950f1f..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/rcv.go +++ /dev/null @@ -1,616 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "container/heap" - "math" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/seqnum" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -// receiver holds the state necessary to receive TCP segments and turn them -// into a stream of bytes. -// -// +stateify savable -type receiver struct { - stack.TCPReceiverState - ep *Endpoint - - // rcvWnd is the non-scaled receive window last advertised to the peer. - rcvWnd seqnum.Size - - // rcvWUP is the RcvNxt value at the last window update sent. - rcvWUP seqnum.Value - - // prevBufused is the snapshot of endpoint rcvBufUsed taken when we - // advertise a receive window. - prevBufUsed int - - closed bool - - // pendingRcvdSegments is bounded by the receive buffer size of the - // endpoint. - pendingRcvdSegments segmentHeap - - // Time when the last ack was received. - lastRcvdAckTime tcpip.MonotonicTime -} - -func newReceiver(ep *Endpoint, irs seqnum.Value, rcvWnd seqnum.Size, rcvWndScale uint8) *receiver { - return &receiver{ - ep: ep, - TCPReceiverState: stack.TCPReceiverState{ - RcvNxt: irs + 1, - RcvAcc: irs.Add(rcvWnd + 1), - RcvWndScale: rcvWndScale, - }, - rcvWnd: rcvWnd, - rcvWUP: irs + 1, - lastRcvdAckTime: ep.stack.Clock().NowMonotonic(), - } -} - -// acceptable checks if the segment sequence number range is acceptable -// according to the table on page 26 of RFC 793. -func (r *receiver) acceptable(segSeq seqnum.Value, segLen seqnum.Size) bool { - // r.rcvWnd could be much larger than the window size we advertised in our - // outgoing packets, we should use what we have advertised for acceptability - // test. - scaledWindowSize := r.rcvWnd >> r.RcvWndScale - if scaledWindowSize > math.MaxUint16 { - // This is what we actually put in the Window field. - scaledWindowSize = math.MaxUint16 - } - advertisedWindowSize := scaledWindowSize << r.RcvWndScale - return header.Acceptable(segSeq, segLen, r.RcvNxt, r.RcvNxt.Add(advertisedWindowSize)) -} - -// currentWindow returns the available space in the window that was advertised -// last to our peer. -func (r *receiver) currentWindow() (curWnd seqnum.Size) { - endOfWnd := r.rcvWUP.Add(r.rcvWnd) - if endOfWnd.LessThan(r.RcvNxt) { - // return 0 if r.RcvNxt is past the end of the previously advertised window. - // This can happen because we accept a large segment completely even if - // accepting it causes it to partially exceed the advertised window. - return 0 - } - return r.RcvNxt.Size(endOfWnd) -} - -// getSendParams returns the parameters needed by the sender when building -// segments to send. -// +checklocks:r.ep.mu -func (r *receiver) getSendParams() (RcvNxt seqnum.Value, rcvWnd seqnum.Size) { - newWnd := r.ep.selectWindow() - curWnd := r.currentWindow() - unackLen := int(r.ep.snd.MaxSentAck.Size(r.RcvNxt)) - bufUsed := r.ep.receiveBufferUsed() - - // Grow the right edge of the window only for payloads larger than the - // the segment overhead OR if the application is actively consuming data. - // - // Avoiding growing the right edge otherwise, addresses a situation below: - // An application has been slow in reading data and we have burst of - // incoming segments lengths < segment overhead. Here, our available free - // memory would reduce drastically when compared to the advertised receive - // window. - // - // For example: With incoming 512 bytes segments, segment overhead of - // 552 bytes (at the time of writing this comment), with receive window - // starting from 1MB and with rcvAdvWndScale being 1, buffer would reach 0 - // when the curWnd is still 19436 bytes, because for every incoming segment - // newWnd would reduce by (552+512) >> rcvAdvWndScale (current value 1), - // while curWnd would reduce by 512 bytes. - // Such a situation causes us to keep tail dropping the incoming segments - // and never advertise zero receive window to the peer. - // - // Linux does a similar check for minimal sk_buff size (128): - // https://github.com/torvalds/linux/blob/d5beb3140f91b1c8a3d41b14d729aefa4dcc58bc/net/ipv4/tcp_input.c#L783 - // - // Also, if the application is reading the data, we keep growing the right - // edge, as we are still advertising a window that we think can be serviced. - toGrow := unackLen >= SegOverheadSize || bufUsed <= r.prevBufUsed - - // Update RcvAcc only if new window is > previously advertised window. We - // should never shrink the acceptable sequence space once it has been - // advertised the peer. If we shrink the acceptable sequence space then we - // would end up dropping bytes that might already be in flight. - // ==================================================== sequence space. - // ^ ^ ^ ^ - // rcvWUP RcvNxt RcvAcc new RcvAcc - // <=====curWnd ===> - // <========= newWnd > curWnd ========= > - if r.RcvNxt.Add(curWnd).LessThan(r.RcvNxt.Add(newWnd)) && toGrow { - // If the new window moves the right edge, then update RcvAcc. - r.RcvAcc = r.RcvNxt.Add(newWnd) - } else { - if newWnd == 0 { - // newWnd is zero but we can't advertise a zero as it would cause window - // to shrink so just increment a metric to record this event. - r.ep.stats.ReceiveErrors.WantZeroRcvWindow.Increment() - } - newWnd = curWnd - } - - // Apply silly-window avoidance when recovering from zero-window situation. - // Keep advertising zero receive window up until the new window reaches a - // threshold. - if r.rcvWnd == 0 && newWnd != 0 { - r.ep.rcvQueueMu.Lock() - if crossed, above := r.ep.windowCrossedACKThresholdLocked(int(newWnd), int(r.ep.ops.GetReceiveBufferSize())); !crossed && !above { - newWnd = 0 - } - r.ep.rcvQueueMu.Unlock() - } - - // Stash away the non-scaled receive window as we use it for measuring - // receiver's estimated RTT. - r.rcvWnd = newWnd - r.rcvWUP = r.RcvNxt - r.prevBufUsed = bufUsed - scaledWnd := r.rcvWnd >> r.RcvWndScale - if scaledWnd == 0 { - // Increment a metric if we are advertising an actual zero window. - r.ep.stats.ReceiveErrors.ZeroRcvWindowState.Increment() - } - - // If we started off with a window larger than what can he held in - // the 16bit window field, we ceil the value to the max value. - if scaledWnd > math.MaxUint16 { - scaledWnd = seqnum.Size(math.MaxUint16) - - // Ensure that the stashed receive window always reflects what - // is being advertised. - r.rcvWnd = scaledWnd << r.RcvWndScale - } - return r.RcvNxt, scaledWnd -} - -// nonZeroWindow is called when the receive window grows from zero to nonzero; -// in such cases we may need to send an ack to indicate to our peer that it can -// resume sending data. -// +checklocks:r.ep.mu -// +checklocksalias:r.ep.snd.ep.mu=r.ep.mu -func (r *receiver) nonZeroWindow() { - // Immediately send an ack. - r.ep.snd.sendAck() -} - -// consumeSegment attempts to consume a segment that was received by r. The -// segment may have just been received or may have been received earlier but -// wasn't ready to be consumed then. -// -// Returns true if the segment was consumed, false if it cannot be consumed -// yet because of a missing segment. -// +checklocks:r.ep.mu -// +checklocksalias:r.ep.snd.ep.mu=r.ep.mu -func (r *receiver) consumeSegment(s *segment, segSeq seqnum.Value, segLen seqnum.Size) bool { - if segLen > 0 { - // If the segment doesn't include the seqnum we're expecting to - // consume now, we're missing a segment. We cannot proceed until - // we receive that segment though. - if !r.RcvNxt.InWindow(segSeq, segLen) { - return false - } - - // Trim segment to eliminate already acknowledged data. - if segSeq.LessThan(r.RcvNxt) { - diff := segSeq.Size(r.RcvNxt) - segLen -= diff - segSeq.UpdateForward(diff) - s.sequenceNumber.UpdateForward(diff) - s.TrimFront(diff) - } - - // Move segment to ready-to-deliver list. Wakeup any waiters. - r.ep.readyToRead(s) - - } else if segSeq != r.RcvNxt { - return false - } - - // Update the segment that we're expecting to consume. - r.RcvNxt = segSeq.Add(segLen) - - // In cases of a misbehaving sender which could send more than the - // advertised window, we could end up in a situation where we get a - // segment that exceeds the window advertised. Instead of partially - // accepting the segment and discarding bytes beyond the advertised - // window, we accept the whole segment and make sure r.RcvAcc is moved - // forward to match r.RcvNxt to indicate that the window is now closed. - // - // In absence of this check the r.acceptable() check fails and accepts - // segments that should be dropped because rcvWnd is calculated as - // the size of the interval (RcvNxt, RcvAcc] which becomes extremely - // large if RcvAcc is ever less than RcvNxt. - if r.RcvAcc.LessThan(r.RcvNxt) { - r.RcvAcc = r.RcvNxt - } - - // Trim SACK Blocks to remove any SACK information that covers - // sequence numbers that have been consumed. - TrimSACKBlockList(&r.ep.sack, r.RcvNxt) - - // Handle FIN or FIN-ACK. - if s.flags.Contains(header.TCPFlagFin) { - r.RcvNxt++ - - // Send ACK immediately. - r.ep.snd.sendAck() - - // Tell any readers that no more data will come. - r.closed = true - r.ep.readyToRead(nil) - - // We just received a FIN, our next state depends on whether we sent a - // FIN already or not. - switch r.ep.EndpointState() { - case StateEstablished: - r.ep.setEndpointState(StateCloseWait) - case StateFinWait1: - if s.flags.Contains(header.TCPFlagAck) && s.ackNumber == r.ep.snd.SndNxt { - // FIN-ACK, transition to TIME-WAIT. - r.ep.setEndpointState(StateTimeWait) - } else { - // Simultaneous close, expecting a final ACK. - r.ep.setEndpointState(StateClosing) - } - case StateFinWait2: - r.ep.setEndpointState(StateTimeWait) - } - - // Flush out any pending segments, except the very first one if - // it happens to be the one we're handling now because the - // caller is using it. - first := 0 - if len(r.pendingRcvdSegments) != 0 && r.pendingRcvdSegments[0] == s { - first = 1 - } - - for i := first; i < len(r.pendingRcvdSegments); i++ { - r.PendingBufUsed -= r.pendingRcvdSegments[i].segMemSize() - r.pendingRcvdSegments[i].DecRef() - // Note that slice truncation does not allow garbage - // collection of truncated items, thus truncated items - // must be set to nil to avoid memory leaks. - r.pendingRcvdSegments[i] = nil - } - r.pendingRcvdSegments = r.pendingRcvdSegments[:first] - r.ep.updateConnDirectionState(connDirectionStateRcvClosed) - - return true - } - - // Handle ACK (not FIN-ACK, which we handled above) during one of the - // shutdown states. - if s.flags.Contains(header.TCPFlagAck) && s.ackNumber == r.ep.snd.SndNxt { - switch r.ep.EndpointState() { - case StateFinWait1: - r.ep.setEndpointState(StateFinWait2) - if e := r.ep; e.closed { - // The socket has been closed and we are in - // FIN-WAIT-2 so start the FIN-WAIT-2 timer. - e.finWait2Timer = e.stack.Clock().AfterFunc(e.tcpLingerTimeout, e.finWait2TimerExpired) - } - - case StateClosing: - r.ep.setEndpointState(StateTimeWait) - case StateLastAck: - r.ep.transitionToStateCloseLocked() - } - } - - return true -} - -// updateRTT updates the receiver RTT measurement based on the sequence number -// of the received segment. -func (r *receiver) updateRTT() { - // From: https://public.lanl.gov/radiant/pubs/drs/sc2001-poster.pdf - // - // A system that is only transmitting acknowledgements can still - // estimate the round-trip time by observing the time between when a byte - // is first acknowledged and the receipt of data that is at least one - // window beyond the sequence number that was acknowledged. - r.ep.rcvQueueMu.Lock() - if r.ep.RcvAutoParams.RTTMeasureTime == (tcpip.MonotonicTime{}) { - // New measurement. - r.ep.RcvAutoParams.RTTMeasureTime = r.ep.stack.Clock().NowMonotonic() - r.ep.RcvAutoParams.RTTMeasureSeqNumber = r.RcvNxt.Add(r.rcvWnd) - r.ep.rcvQueueMu.Unlock() - return - } - if r.RcvNxt.LessThan(r.ep.RcvAutoParams.RTTMeasureSeqNumber) { - r.ep.rcvQueueMu.Unlock() - return - } - rtt := r.ep.stack.Clock().NowMonotonic().Sub(r.ep.RcvAutoParams.RTTMeasureTime) - // We only store the minimum observed RTT here as this is only used in - // absence of a SRTT available from either timestamps or a sender - // measurement of RTT. - if r.ep.RcvAutoParams.RTT == 0 || rtt < r.ep.RcvAutoParams.RTT { - r.ep.RcvAutoParams.RTT = rtt - } - r.ep.RcvAutoParams.RTTMeasureTime = r.ep.stack.Clock().NowMonotonic() - r.ep.RcvAutoParams.RTTMeasureSeqNumber = r.RcvNxt.Add(r.rcvWnd) - r.ep.rcvQueueMu.Unlock() -} - -// +checklocks:r.ep.mu -// +checklocksalias:r.ep.snd.ep.mu=r.ep.mu -func (r *receiver) handleRcvdSegmentClosing(s *segment, state EndpointState, closed bool) (drop bool, err tcpip.Error) { - r.ep.rcvQueueMu.Lock() - rcvClosed := r.ep.RcvClosed || r.closed - r.ep.rcvQueueMu.Unlock() - - // If we are in one of the shutdown states then we need to do - // additional checks before we try and process the segment. - switch state { - case StateCloseWait, StateClosing, StateLastAck: - if !s.sequenceNumber.LessThanEq(r.RcvNxt) { - // Just drop the segment as we have - // already received a FIN and this - // segment is after the sequence number - // for the FIN. - return true, nil - } - fallthrough - case StateFinWait1, StateFinWait2: - // If the ACK acks something not yet sent then we send an ACK. - // - // RFC793, page 37: If the connection is in a synchronized state, - // (ESTABLISHED, FIN-WAIT-1, FIN-WAIT-2, CLOSE-WAIT, CLOSING, LAST-ACK, - // TIME-WAIT), any unacceptable segment (out of window sequence number - // or unacceptable acknowledgment number) must elicit only an empty - // acknowledgment segment containing the current send-sequence number - // and an acknowledgment indicating the next sequence number expected - // to be received, and the connection remains in the same state. - // - // Just as on Linux, we do not apply this behavior when state is - // ESTABLISHED. - // Linux receive processing for all states except ESTABLISHED and - // TIME_WAIT is here where if the ACK check fails, we attempt to - // reply back with an ACK with correct seq/ack numbers. - // https://github.com/torvalds/linux/blob/v5.8/net/ipv4/tcp_input.c#L6186 - // The ESTABLISHED state processing is here where if the ACK check - // fails, we ignore the packet: - // https://github.com/torvalds/linux/blob/v5.8/net/ipv4/tcp_input.c#L5591 - if r.ep.snd.SndNxt.LessThan(s.ackNumber) { - r.ep.snd.maybeSendOutOfWindowAck(s) - return true, nil - } - - // If we are closed for reads (either due to an - // incoming FIN or the user calling shutdown(.., - // SHUT_RD) then any data past the RcvNxt should - // trigger a RST. - endDataSeq := s.sequenceNumber.Add(seqnum.Size(s.payloadSize())) - if state != StateCloseWait && rcvClosed && r.RcvNxt.LessThan(endDataSeq) { - return true, &tcpip.ErrConnectionAborted{} - } - if state == StateFinWait1 { - break - } - - // If it's a retransmission of an old data segment - // or a pure ACK then allow it. - if s.sequenceNumber.Add(s.logicalLen()).LessThanEq(r.RcvNxt) || - s.logicalLen() == 0 { - break - } - - // In FIN-WAIT2 if the socket is fully - // closed(not owned by application on our end - // then the only acceptable segment is a - // FIN. Since FIN can technically also carry - // data we verify that the segment carrying a - // FIN ends at exactly e.RcvNxt+1. - // - // From RFC793 page 25. - // - // For sequence number purposes, the SYN is - // considered to occur before the first actual - // data octet of the segment in which it occurs, - // while the FIN is considered to occur after - // the last actual data octet in a segment in - // which it occurs. - if closed && (!s.flags.Contains(header.TCPFlagFin) || s.sequenceNumber.Add(s.logicalLen()) != r.RcvNxt+1) { - return true, &tcpip.ErrConnectionAborted{} - } - } - - // We don't care about receive processing anymore if the receive side - // is closed. - // - // NOTE: We still want to permit a FIN as it's possible only our - // end has closed and the peer is yet to send a FIN. Hence we - // compare only the payload. - segEnd := s.sequenceNumber.Add(seqnum.Size(s.payloadSize())) - if rcvClosed && !segEnd.LessThanEq(r.RcvNxt) { - return true, nil - } - return false, nil -} - -// handleRcvdSegment handles TCP segments directed at the connection managed by -// r as they arrive. It is called by the protocol main loop. -// +checklocks:r.ep.mu -// +checklocksalias:r.ep.snd.ep.mu=r.ep.mu -func (r *receiver) handleRcvdSegment(s *segment) (drop bool, err tcpip.Error) { - state := r.ep.EndpointState() - closed := r.ep.closed - - segLen := seqnum.Size(s.payloadSize()) - segSeq := s.sequenceNumber - - // If the sequence number range is outside the acceptable range, just - // send an ACK and stop further processing of the segment. - // This is according to RFC 793, page 68. - if !r.acceptable(segSeq, segLen) { - r.ep.snd.maybeSendOutOfWindowAck(s) - return true, nil - } - - if state != StateEstablished { - drop, err := r.handleRcvdSegmentClosing(s, state, closed) - if drop || err != nil { - return drop, err - } - } - - // Store the time of the last ack. - r.lastRcvdAckTime = r.ep.stack.Clock().NowMonotonic() - - // Defer segment processing if it can't be consumed now. - if !r.consumeSegment(s, segSeq, segLen) { - if segLen > 0 || s.flags.Contains(header.TCPFlagFin) { - // We only store the segment if it's within our buffer - // size limit. - // - // Only use 75% of the receive buffer queue for - // out-of-order segments. This ensures that we always - // leave some space for the inorder segments to arrive - // allowing pending segments to be processed and - // delivered to the user. - // - // The ratio must be at least 50% (the size of rwnd) to - // leave space for retransmitted dropped packets. 51% - // would make recovery slow when there are multiple - // drops by necessitating multiple round trips. 100% - // would enable the buffer to be totally full of - // out-of-order data and stall the connection. - // - // An ideal solution is to ensure that there are at - // least N bytes free when N bytes are missing, but we - // don't have that computed at this point in the stack. - if rcvBufSize := r.ep.ops.GetReceiveBufferSize(); rcvBufSize > 0 && (r.PendingBufUsed+int(segLen)) < int(rcvBufSize-rcvBufSize/4) { - r.ep.rcvQueueMu.Lock() - r.PendingBufUsed += s.segMemSize() - r.ep.rcvQueueMu.Unlock() - s.IncRef() - heap.Push(&r.pendingRcvdSegments, s) - UpdateSACKBlocks(&r.ep.sack, segSeq, segSeq.Add(segLen), r.RcvNxt) - } - - // Immediately send an ack so that the peer knows it may - // have to retransmit. - r.ep.snd.sendAck() - } - return false, nil - } - - // Since we consumed a segment update the receiver's RTT estimate - // if required. - if segLen > 0 { - r.updateRTT() - } - - // By consuming the current segment, we may have filled a gap in the - // sequence number domain that allows pending segments to be consumed - // now. So try to do it. - for !r.closed && r.pendingRcvdSegments.Len() > 0 { - s := r.pendingRcvdSegments[0] - segLen := seqnum.Size(s.payloadSize()) - segSeq := s.sequenceNumber - - // Skip segment altogether if it has already been acknowledged. - if !segSeq.Add(segLen-1).LessThan(r.RcvNxt) && - !r.consumeSegment(s, segSeq, segLen) { - break - } - - heap.Pop(&r.pendingRcvdSegments) - r.ep.rcvQueueMu.Lock() - r.PendingBufUsed -= s.segMemSize() - r.ep.rcvQueueMu.Unlock() - s.DecRef() - } - return false, nil -} - -// handleTimeWaitSegment handles inbound segments received when the endpoint -// has entered the TIME_WAIT state. -// +checklocks:r.ep.mu -// +checklocksalias:r.ep.snd.ep.mu=r.ep.mu -func (r *receiver) handleTimeWaitSegment(s *segment) (resetTimeWait bool, newSyn bool) { - segSeq := s.sequenceNumber - segLen := seqnum.Size(s.payloadSize()) - - // Just silently drop any RST packets in TIME_WAIT. We do not support - // TIME_WAIT assassination as a result we confirm w/ fix 1 as described - // in https://tools.ietf.org/html/rfc1337#section-3. - // - // This behavior overrides RFC793 page 70 where we transition to CLOSED - // on receiving RST, which is also default Linux behavior. - // On Linux the RST can be ignored by setting sysctl net.ipv4.tcp_rfc1337. - // - // As we do not yet support PAWS, we are being conservative in ignoring - // RSTs by default. - if s.flags.Contains(header.TCPFlagRst) { - return false, false - } - - // If it's a SYN and the sequence number is higher than any seen before - // for this connection then try and redirect it to a listening endpoint - // if available. - // - // RFC 1122: - // "When a connection is [...] on TIME-WAIT state [...] - // [a TCP] MAY accept a new SYN from the remote TCP to - // reopen the connection directly, if it: - - // (1) assigns its initial sequence number for the new - // connection to be larger than the largest sequence - // number it used on the previous connection incarnation, - // and - - // (2) returns to TIME-WAIT state if the SYN turns out - // to be an old duplicate". - if s.flags.Contains(header.TCPFlagSyn) && r.RcvNxt.LessThan(segSeq) { - return false, true - } - - // Drop the segment if it does not contain an ACK. - if !s.flags.Contains(header.TCPFlagAck) { - return false, false - } - - // Update Timestamp if required. See RFC7323, section-4.3. - if r.ep.SendTSOk && s.parsedOptions.TS { - r.ep.updateRecentTimestamp(s.parsedOptions.TSVal, r.ep.snd.MaxSentAck, segSeq) - } - - if segSeq.Add(1) == r.RcvNxt && s.flags.Contains(header.TCPFlagFin) { - // If it's a FIN-ACK then resetTimeWait and send an ACK, as it - // indicates our final ACK could have been lost. - r.ep.snd.sendAck() - return true, false - } - - // If the sequence number range is outside the acceptable range or - // carries data then just send an ACK. This is according to RFC 793, - // page 37. - // - // NOTE: In TIME_WAIT the only acceptable sequence number is RcvNxt. - if segSeq != r.RcvNxt || segLen != 0 { - r.ep.snd.sendAck() - } - return false, false -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/reno.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/reno.go deleted file mode 100644 index 2d1b011db2..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/reno.go +++ /dev/null @@ -1,107 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "time" -) - -// renoState stores the variables related to TCP New Reno congestion -// control algorithm. -// -// +stateify savable -type renoState struct { - s *sender -} - -// newRenoCC initializes the state for the NewReno congestion control algorithm. -func newRenoCC(s *sender) *renoState { - return &renoState{s: s} -} - -// updateSlowStart will update the congestion window as per the slow-start -// algorithm used by NewReno. If after adjusting the congestion window -// we cross the SSthreshold then it will return the number of packets that -// must be consumed in congestion avoidance mode. -func (r *renoState) updateSlowStart(packetsAcked int) int { - // Don't let the congestion window cross into the congestion - // avoidance range. - newcwnd := r.s.SndCwnd + packetsAcked - if newcwnd >= r.s.Ssthresh { - newcwnd = r.s.Ssthresh - r.s.SndCAAckCount = 0 - } - - packetsAcked -= newcwnd - r.s.SndCwnd - r.s.SndCwnd = newcwnd - return packetsAcked -} - -// updateCongestionAvoidance will update congestion window in congestion -// avoidance mode as described in RFC5681 section 3.1 -func (r *renoState) updateCongestionAvoidance(packetsAcked int) { - // Consume the packets in congestion avoidance mode. - r.s.SndCAAckCount += packetsAcked - if r.s.SndCAAckCount >= r.s.SndCwnd { - r.s.SndCwnd += r.s.SndCAAckCount / r.s.SndCwnd - r.s.SndCAAckCount = r.s.SndCAAckCount % r.s.SndCwnd - } -} - -// reduceSlowStartThreshold reduces the slow-start threshold per RFC 5681, -// page 6, eq. 4. It is called when we detect congestion in the network. -func (r *renoState) reduceSlowStartThreshold() { - r.s.Ssthresh = r.s.Outstanding / 2 - if r.s.Ssthresh < 2 { - r.s.Ssthresh = 2 - } - -} - -// Update updates the congestion state based on the number of packets that -// were acknowledged. -// Update implements congestionControl.Update. -func (r *renoState) Update(packetsAcked int, _ time.Duration) { - if r.s.SndCwnd < r.s.Ssthresh { - packetsAcked = r.updateSlowStart(packetsAcked) - if packetsAcked == 0 { - return - } - } - r.updateCongestionAvoidance(packetsAcked) -} - -// HandleLossDetected implements congestionControl.HandleLossDetected. -func (r *renoState) HandleLossDetected() { - // A retransmit was triggered due to nDupAckThreshold or when RACK - // detected loss. Reduce our slow start threshold. - r.reduceSlowStartThreshold() -} - -// HandleRTOExpired implements congestionControl.HandleRTOExpired. -func (r *renoState) HandleRTOExpired() { - // We lost a packet, so reduce ssthresh. - r.reduceSlowStartThreshold() - - // Reduce the congestion window to 1, i.e., enter slow-start. Per - // RFC 5681, page 7, we must use 1 regardless of the value of the - // initial congestion window. - r.s.SndCwnd = 1 -} - -// PostRecovery implements congestionControl.PostRecovery. -func (r *renoState) PostRecovery() { - // noop. -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/reno_recovery.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/reno_recovery.go deleted file mode 100644 index e387dfaf79..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/reno_recovery.go +++ /dev/null @@ -1,68 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -// renoRecovery stores the variables related to TCP Reno loss recovery -// algorithm. -// -// +stateify savable -type renoRecovery struct { - s *sender -} - -func newRenoRecovery(s *sender) *renoRecovery { - return &renoRecovery{s: s} -} - -// +checklocks:rr.s.ep.mu -func (rr *renoRecovery) DoRecovery(rcvdSeg *segment, fastRetransmit bool) { - ack := rcvdSeg.ackNumber - snd := rr.s - - // We are in fast recovery mode. Ignore the ack if it's out of range. - if !ack.InRange(snd.SndUna, snd.SndNxt+1) { - return - } - - // Don't count this as a duplicate if it is carrying data or - // updating the window. - if rcvdSeg.logicalLen() != 0 || snd.SndWnd != rcvdSeg.window { - return - } - - // Inflate the congestion window if we're getting duplicate acks - // for the packet we retransmitted. - if !fastRetransmit && ack == snd.FastRecovery.First { - // We received a dup, inflate the congestion window by 1 packet - // if we're not at the max yet. Only inflate the window if - // regular FastRecovery is in use, RFC6675 does not require - // inflating cwnd on duplicate ACKs. - if snd.SndCwnd < snd.FastRecovery.MaxCwnd { - snd.SndCwnd++ - } - return - } - - // A partial ack was received. Retransmit this packet and remember it - // so that we don't retransmit it again. - // - // We don't inflate the window because we're putting the same packet - // back onto the wire. - // - // N.B. The retransmit timer will be reset by the caller. - snd.FastRecovery.First = ack - snd.DupAckCount = 0 - snd.resendSegment() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/sack.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/sack.go deleted file mode 100644 index 7be86d68e8..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/sack.go +++ /dev/null @@ -1,105 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/seqnum" -) - -const ( - // MaxSACKBlocks is the maximum number of SACK blocks stored - // at receiver side. - MaxSACKBlocks = 6 -) - -// UpdateSACKBlocks updates the list of SACK blocks to include the segment -// specified by segStart->segEnd. If the segment happens to be an out of order -// delivery then the first block in the sack.blocks always includes the -// segment identified by segStart->segEnd. -func UpdateSACKBlocks(sack *SACKInfo, segStart seqnum.Value, segEnd seqnum.Value, rcvNxt seqnum.Value) { - newSB := header.SACKBlock{Start: segStart, End: segEnd} - - // Ignore any invalid SACK blocks or blocks that are before rcvNxt as - // those bytes have already been acked. - if newSB.End.LessThanEq(newSB.Start) || newSB.End.LessThan(rcvNxt) { - return - } - - if sack.NumBlocks == 0 { - sack.Blocks[0] = newSB - sack.NumBlocks = 1 - return - } - var n = 0 - for i := 0; i < sack.NumBlocks; i++ { - start, end := sack.Blocks[i].Start, sack.Blocks[i].End - if end.LessThanEq(rcvNxt) { - // Discard any sack blocks that are before rcvNxt as - // those have already been acked. - continue - } - if newSB.Start.LessThanEq(end) && start.LessThanEq(newSB.End) { - // Merge this SACK block into newSB and discard this SACK - // block. - if start.LessThan(newSB.Start) { - newSB.Start = start - } - if newSB.End.LessThan(end) { - newSB.End = end - } - } else { - // Save this block. - sack.Blocks[n] = sack.Blocks[i] - n++ - } - } - if rcvNxt.LessThan(newSB.Start) { - // If this was an out of order segment then make sure that the - // first SACK block is the one that includes the segment. - // - // See the first bullet point in - // https://tools.ietf.org/html/rfc2018#section-4 - if n == MaxSACKBlocks { - // If the number of SACK blocks is equal to - // MaxSACKBlocks then discard the last SACK block. - n-- - } - for i := n - 1; i >= 0; i-- { - sack.Blocks[i+1] = sack.Blocks[i] - } - sack.Blocks[0] = newSB - n++ - } - sack.NumBlocks = n -} - -// TrimSACKBlockList updates the sack block list by removing/modifying any block -// where start is < rcvNxt. -func TrimSACKBlockList(sack *SACKInfo, rcvNxt seqnum.Value) { - n := 0 - for i := 0; i < sack.NumBlocks; i++ { - if sack.Blocks[i].End.LessThanEq(rcvNxt) { - continue - } - if sack.Blocks[i].Start.LessThan(rcvNxt) { - // Shrink this SACK block. - sack.Blocks[i].Start = rcvNxt - } - sack.Blocks[n] = sack.Blocks[i] - n++ - } - sack.NumBlocks = n -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/sack_recovery.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/sack_recovery.go deleted file mode 100644 index 74f1698d78..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/sack_recovery.go +++ /dev/null @@ -1,122 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import "gvisor.dev/gvisor/pkg/tcpip/seqnum" - -// sackRecovery stores the variables related to TCP SACK loss recovery -// algorithm. -// -// +stateify savable -type sackRecovery struct { - s *sender -} - -func newSACKRecovery(s *sender) *sackRecovery { - return &sackRecovery{s: s} -} - -// handleSACKRecovery implements the loss recovery phase as described in RFC6675 -// section 5, step C. -// +checklocks:sr.s.ep.mu -func (sr *sackRecovery) handleSACKRecovery(limit int, end seqnum.Value) (dataSent bool) { - snd := sr.s - snd.SetPipe() - - if smss := int(snd.ep.scoreboard.SMSS()); limit > smss { - // Cap segment size limit to s.smss as SACK recovery requires - // that all retransmissions or new segments send during recovery - // be of <= SMSS. - limit = smss - } - - nextSegHint := snd.writeList.Front() - for snd.Outstanding < snd.SndCwnd { - var nextSeg *segment - var rescueRtx bool - nextSeg, nextSegHint, rescueRtx = snd.NextSeg(nextSegHint) - if nextSeg == nil { - return dataSent - } - if !snd.isAssignedSequenceNumber(nextSeg) || snd.SndNxt.LessThanEq(nextSeg.sequenceNumber) { - // New data being sent. - - // Step C.3 described below is handled by - // maybeSendSegment which increments sndNxt when - // a segment is transmitted. - // - // Step C.3 "If any of the data octets sent in - // (C.1) are above HighData, HighData must be - // updated to reflect the transmission of - // previously unsent data." - // - // We pass s.smss as the limit as the Step 2) requires that - // new data sent should be of size s.smss or less. - if sent := snd.maybeSendSegment(nextSeg, limit, end); !sent { - return dataSent - } - dataSent = true - snd.Outstanding++ - snd.updateWriteNext(nextSeg.Next()) - continue - } - - // Now handle the retransmission case where we matched either step 1,3 or 4 - // of the NextSeg algorithm. - // RFC 6675, Step C.4. - // - // "The estimate of the amount of data outstanding in the network - // must be updated by incrementing pipe by the number of octets - // transmitted in (C.1)." - snd.Outstanding++ - dataSent = true - snd.sendSegment(nextSeg) - - segEnd := nextSeg.sequenceNumber.Add(nextSeg.logicalLen()) - if rescueRtx { - // We do the last part of rule (4) of NextSeg here to update - // RescueRxt as until this point we don't know if we are going - // to use the rescue transmission. - snd.FastRecovery.RescueRxt = snd.FastRecovery.Last - } else { - // RFC 6675, Step C.2 - // - // "If any of the data octets sent in (C.1) are below - // HighData, HighRxt MUST be set to the highest sequence - // number of the retransmitted segment unless NextSeg () - // rule (4) was invoked for this retransmission." - snd.FastRecovery.HighRxt = segEnd - 1 - } - } - return dataSent -} - -// +checklocks:sr.s.ep.mu -func (sr *sackRecovery) DoRecovery(rcvdSeg *segment, fastRetransmit bool) { - snd := sr.s - if fastRetransmit { - snd.resendSegment() - } - - // We are in fast recovery mode. Ignore the ack if it's out of range. - if ack := rcvdSeg.ackNumber; !ack.InRange(snd.SndUna, snd.SndNxt+1) { - return - } - - // RFC 6675 recovery algorithm step C 1-5. - end := snd.SndUna.Add(snd.SndWnd) - dataSent := sr.handleSACKRecovery(snd.MaxPayloadSize, end) - snd.postXmit(dataSent, true /* shouldScheduleProbe */) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/sack_scoreboard.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/sack_scoreboard.go deleted file mode 100644 index fb7f4e3ff3..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/sack_scoreboard.go +++ /dev/null @@ -1,306 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "fmt" - "strings" - - "github.com/google/btree" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/seqnum" -) - -const ( - // maxSACKBlocks is the maximum number of distinct SACKBlocks the - // scoreboard will track. Once there are 100 distinct blocks, new - // insertions will fail. - maxSACKBlocks = 100 - - // defaultBtreeDegree is set to 2 as btree.New(2) results in a 2-3-4 - // tree. - defaultBtreeDegree = 2 -) - -// SACKScoreboard stores a set of disjoint SACK ranges. -// -// +stateify savable -type SACKScoreboard struct { - // smss is defined in RFC5681 as following: - // - // The SMSS is the size of the largest segment that the sender can - // transmit. This value can be based on the maximum transmission unit - // of the network, the path MTU discovery [RFC1191, RFC4821] algorithm, - // RMSS (see next item), or other factors. The size does not include - // the TCP/IP headers and options. - smss uint16 - maxSACKED seqnum.Value - sacked seqnum.Size `state:"nosave"` - ranges *btree.BTree `state:"nosave"` -} - -// NewSACKScoreboard returns a new SACK Scoreboard. -func NewSACKScoreboard(smss uint16, iss seqnum.Value) *SACKScoreboard { - return &SACKScoreboard{ - smss: smss, - ranges: btree.New(defaultBtreeDegree), - maxSACKED: iss, - } -} - -// Reset erases all known range information from the SACK scoreboard. -func (s *SACKScoreboard) Reset() { - s.ranges = btree.New(defaultBtreeDegree) - s.sacked = 0 -} - -// Insert inserts/merges the provided SACKBlock into the scoreboard. -func (s *SACKScoreboard) Insert(r header.SACKBlock) { - if s.ranges.Len() >= maxSACKBlocks { - return - } - - // Check if we can merge the new range with a range before or after it. - var toDelete []btree.Item - if s.maxSACKED.LessThan(r.End - 1) { - s.maxSACKED = r.End - 1 - } - s.ranges.AscendGreaterOrEqual(r, func(i btree.Item) bool { - if i == r { - return true - } - sacked := i.(header.SACKBlock) - // There is a hole between these two SACK blocks, so we can't - // merge anymore. - if r.End.LessThan(sacked.Start) { - return false - } - // There is some overlap at this point, merge the blocks and - // delete the other one. - // - // ----sS--------sE - // r.S---------------rE - // -------sE - if sacked.End.LessThan(r.End) { - // sacked is contained in the newly inserted range. - // Delete this block. - toDelete = append(toDelete, i) - return true - } - // sacked covers a range past end of the newly inserted - // block. - r.End = sacked.End - toDelete = append(toDelete, i) - return true - }) - - s.ranges.DescendLessOrEqual(r, func(i btree.Item) bool { - if i == r { - return true - } - sacked := i.(header.SACKBlock) - // sA------sE - // rA----rE - if sacked.End.LessThan(r.Start) { - return false - } - // The previous range extends into the current block. Merge it - // into the newly inserted range and delete the other one. - // - // <-rA---rE----<---rE---> - // sA--------------sE - r.Start = sacked.Start - // Extend r to cover sacked if sacked extends past r. - if r.End.LessThan(sacked.End) { - r.End = sacked.End - } - toDelete = append(toDelete, i) - return true - }) - for _, i := range toDelete { - if sb := s.ranges.Delete(i); sb != nil { - sb := i.(header.SACKBlock) - s.sacked -= sb.Start.Size(sb.End) - } - } - - replaced := s.ranges.ReplaceOrInsert(r) - if replaced == nil { - s.sacked += r.Start.Size(r.End) - } -} - -// IsSACKED returns true if the a given range of sequence numbers denoted by r -// are already covered by SACK information in the scoreboard. -func (s *SACKScoreboard) IsSACKED(r header.SACKBlock) bool { - if s.Empty() { - return false - } - - found := false - s.ranges.DescendLessOrEqual(r, func(i btree.Item) bool { - sacked := i.(header.SACKBlock) - if sacked.End.LessThan(r.Start) { - return false - } - if sacked.Contains(r) { - found = true - return false - } - return true - }) - return found -} - -// String returns human-readable state of the scoreboard structure. -func (s *SACKScoreboard) String() string { - var str strings.Builder - str.WriteString("SACKScoreboard: {") - s.ranges.Ascend(func(i btree.Item) bool { - str.WriteString(fmt.Sprintf("%v,", i)) - return true - }) - str.WriteString("}\n") - return str.String() -} - -// Delete removes all SACK information prior to seq. -func (s *SACKScoreboard) Delete(seq seqnum.Value) { - if s.Empty() { - return - } - toDelete := []btree.Item{} - toInsert := []btree.Item{} - r := header.SACKBlock{seq, seq.Add(1)} - s.ranges.DescendLessOrEqual(r, func(i btree.Item) bool { - if i == r { - return true - } - sb := i.(header.SACKBlock) - toDelete = append(toDelete, i) - if sb.End.LessThanEq(seq) { - s.sacked -= sb.Start.Size(sb.End) - } else { - newSB := header.SACKBlock{seq, sb.End} - toInsert = append(toInsert, newSB) - s.sacked -= sb.Start.Size(seq) - } - return true - }) - for _, sb := range toDelete { - s.ranges.Delete(sb) - } - for _, sb := range toInsert { - s.ranges.ReplaceOrInsert(sb) - } -} - -// Copy provides a copy of the SACK scoreboard. -func (s *SACKScoreboard) Copy() (sackBlocks []header.SACKBlock, maxSACKED seqnum.Value) { - s.ranges.Ascend(func(i btree.Item) bool { - sackBlocks = append(sackBlocks, i.(header.SACKBlock)) - return true - }) - return sackBlocks, s.maxSACKED -} - -// IsRangeLost implements the IsLost(SeqNum) operation defined in RFC 6675 -// section 4 but operates on a range of sequence numbers and returns true if -// there are at least nDupAckThreshold SACK blocks greater than the range being -// checked or if at least (nDupAckThreshold-1)*s.smss bytes have been SACKED -// with sequence numbers greater than the block being checked. -func (s *SACKScoreboard) IsRangeLost(r header.SACKBlock) bool { - if s.Empty() { - return false - } - nDupSACK := 0 - nDupSACKBytes := seqnum.Size(0) - isLost := false - - // We need to check if the immediate lower (if any) sacked - // range contains or partially overlaps with r. - searchMore := true - s.ranges.DescendLessOrEqual(r, func(i btree.Item) bool { - sacked := i.(header.SACKBlock) - if sacked.Contains(r) { - searchMore = false - return false - } - if sacked.End.LessThanEq(r.Start) { - // all sequence numbers covered by sacked are below - // r so we continue searching. - return false - } - // There is a partial overlap. In this case we r.Start is - // between sacked.Start & sacked.End and r.End extends beyond - // sacked.End. - // Move r.Start to sacked.End and continuing searching blocks - // above r.Start. - r.Start = sacked.End - return false - }) - - if !searchMore { - return isLost - } - - s.ranges.AscendGreaterOrEqual(r, func(i btree.Item) bool { - sacked := i.(header.SACKBlock) - if sacked.Contains(r) { - return false - } - nDupSACKBytes += sacked.Start.Size(sacked.End) - nDupSACK++ - if nDupSACK >= nDupAckThreshold || nDupSACKBytes >= seqnum.Size((nDupAckThreshold-1)*s.smss) { - isLost = true - return false - } - return true - }) - return isLost -} - -// IsLost implements the IsLost(SeqNum) operation defined in RFC3517 section -// 4. -// -// This routine returns whether the given sequence number is considered to be -// lost. The routine returns true when either nDupAckThreshold discontiguous -// SACKed sequences have arrived above 'SeqNum' or (nDupAckThreshold * SMSS) -// bytes with sequence numbers greater than 'SeqNum' have been SACKed. -// Otherwise, the routine returns false. -func (s *SACKScoreboard) IsLost(seq seqnum.Value) bool { - return s.IsRangeLost(header.SACKBlock{seq, seq.Add(1)}) -} - -// Empty returns true if the SACK scoreboard has no entries, false otherwise. -func (s *SACKScoreboard) Empty() bool { - return s.ranges.Len() == 0 -} - -// Sacked returns the current number of bytes held in the SACK scoreboard. -func (s *SACKScoreboard) Sacked() seqnum.Size { - return s.sacked -} - -// MaxSACKED returns the highest sequence number ever inserted in the SACK -// scoreboard. -func (s *SACKScoreboard) MaxSACKED() seqnum.Value { - return s.maxSACKED -} - -// SMSS returns the sender's MSS as held by the SACK scoreboard. -func (s *SACKScoreboard) SMSS() uint16 { - return s.smss -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/segment.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/segment.go deleted file mode 100644 index 6de583daf5..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/segment.go +++ /dev/null @@ -1,251 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "fmt" - "io" - - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/seqnum" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -// queueFlags are used to indicate which queue of an endpoint a particular segment -// belongs to. This is used to track memory accounting correctly. -type queueFlags uint8 - -const ( - // SegOverheadSize is the size of an empty seg in memory including packet - // buffer overhead. It is advised to use SegOverheadSize instead of segSize - // in all cases where accounting for segment memory overhead is important. - SegOverheadSize = segSize + stack.PacketBufferStructSize + header.IPv4MaximumHeaderSize - - recvQ queueFlags = 1 << iota - sendQ -) - -var segmentPool = sync.Pool{ - New: func() any { - return &segment{} - }, -} - -// segment represents a TCP segment. It holds the payload and parsed TCP segment -// information, and can be added to intrusive lists. -// segment is mostly immutable, the only field allowed to change is data. -// -// +stateify savable -type segment struct { - segmentEntry - segmentRefs - - ep *Endpoint - qFlags queueFlags - id stack.TransportEndpointID `state:"manual"` - - pkt *stack.PacketBuffer - - sequenceNumber seqnum.Value - ackNumber seqnum.Value - flags header.TCPFlags - window seqnum.Size - // csum is only populated for received segments. - csum uint16 - // csumValid is true if the csum in the received segment is valid. - csumValid bool - - // parsedOptions stores the parsed values from the options in the segment. - parsedOptions header.TCPOptions - options []byte `state:".([]byte)"` - hasNewSACKInfo bool - rcvdTime tcpip.MonotonicTime - // xmitTime is the last transmit time of this segment. - xmitTime tcpip.MonotonicTime - xmitCount uint32 - - // acked indicates if the segment has already been SACKed. - acked bool - - // dataMemSize is the memory used by pkt initially. The value is used for - // memory accounting in the receive buffer instead of pkt.MemSize() because - // packet contents can be modified, so relying on the computed memory size - // to "free" reserved bytes could leak memory in the receiver. - dataMemSize int - - // lost indicates if the segment is marked as lost by RACK. - lost bool -} - -func newIncomingSegment(id stack.TransportEndpointID, clock tcpip.Clock, pkt *stack.PacketBuffer) (*segment, error) { - hdr := header.TCP(pkt.TransportHeader().Slice()) - var srcAddr tcpip.Address - var dstAddr tcpip.Address - switch netProto := pkt.NetworkProtocolNumber; netProto { - case header.IPv4ProtocolNumber: - hdr := header.IPv4(pkt.NetworkHeader().Slice()) - srcAddr = hdr.SourceAddress() - dstAddr = hdr.DestinationAddress() - case header.IPv6ProtocolNumber: - hdr := header.IPv6(pkt.NetworkHeader().Slice()) - srcAddr = hdr.SourceAddress() - dstAddr = hdr.DestinationAddress() - default: - panic(fmt.Sprintf("unknown network protocol number %d", netProto)) - } - - csum, csumValid, ok := header.TCPValid( - hdr, - func() uint16 { return pkt.Data().Checksum() }, - uint16(pkt.Data().Size()), - srcAddr, - dstAddr, - pkt.RXChecksumValidated) - if !ok { - return nil, fmt.Errorf("header data offset does not respect size constraints: %d < offset < %d, got offset=%d", header.TCPMinimumSize, len(hdr), hdr.DataOffset()) - } - - s := newSegment() - s.id = id - s.options = hdr[header.TCPMinimumSize:] - s.parsedOptions = header.ParseTCPOptions(hdr[header.TCPMinimumSize:]) - s.sequenceNumber = seqnum.Value(hdr.SequenceNumber()) - s.ackNumber = seqnum.Value(hdr.AckNumber()) - s.flags = hdr.Flags() - s.window = seqnum.Size(hdr.WindowSize()) - s.rcvdTime = clock.NowMonotonic() - s.dataMemSize = pkt.MemSize() - s.pkt = pkt.IncRef() - s.csumValid = csumValid - - if !s.pkt.RXChecksumValidated { - s.csum = csum - } - return s, nil -} - -func newOutgoingSegment(id stack.TransportEndpointID, clock tcpip.Clock, buf buffer.Buffer) *segment { - s := newSegment() - s.id = id - s.rcvdTime = clock.NowMonotonic() - s.pkt = stack.NewPacketBuffer(stack.PacketBufferOptions{Payload: buf}) - s.dataMemSize = s.pkt.MemSize() - return s -} - -func (s *segment) clone() *segment { - t := newSegment() - t.id = s.id - t.sequenceNumber = s.sequenceNumber - t.ackNumber = s.ackNumber - t.flags = s.flags - t.window = s.window - t.rcvdTime = s.rcvdTime - t.xmitTime = s.xmitTime - t.xmitCount = s.xmitCount - t.ep = s.ep - t.qFlags = s.qFlags - t.dataMemSize = s.dataMemSize - t.pkt = s.pkt.Clone() - return t -} - -func newSegment() *segment { - s := segmentPool.Get().(*segment) - *s = segment{} - s.InitRefs() - return s -} - -// merge merges data in oth and clears oth. -func (s *segment) merge(oth *segment) { - s.pkt.Data().Merge(oth.pkt.Data()) - s.dataMemSize = s.pkt.MemSize() - oth.dataMemSize = oth.pkt.MemSize() -} - -// setOwner sets the owning endpoint for this segment. Its required -// to be called to ensure memory accounting for receive/send buffer -// queues is done properly. -func (s *segment) setOwner(ep *Endpoint, qFlags queueFlags) { - switch qFlags { - case recvQ: - ep.updateReceiveMemUsed(s.segMemSize()) - case sendQ: - // no memory account for sendQ yet. - default: - panic(fmt.Sprintf("unexpected queue flag %b", qFlags)) - } - s.ep = ep - s.qFlags = qFlags -} - -func (s *segment) DecRef() { - s.segmentRefs.DecRef(func() { - if s.ep != nil { - switch s.qFlags { - case recvQ: - s.ep.updateReceiveMemUsed(-s.segMemSize()) - case sendQ: - // no memory accounting for sendQ yet. - default: - panic(fmt.Sprintf("unexpected queue flag %b set for segment", s.qFlags)) - } - } - s.pkt.DecRef() - s.pkt = nil - segmentPool.Put(s) - }) -} - -// logicalLen is the segment length in the sequence number space. It's defined -// as the data length plus one for each of the SYN and FIN bits set. -func (s *segment) logicalLen() seqnum.Size { - l := seqnum.Size(s.payloadSize()) - if s.flags.Contains(header.TCPFlagSyn) { - l++ - } - if s.flags.Contains(header.TCPFlagFin) { - l++ - } - return l -} - -// payloadSize is the size of s.data. -func (s *segment) payloadSize() int { - return s.pkt.Data().Size() -} - -// segMemSize is the amount of memory used to hold the segment data and -// the associated metadata. -func (s *segment) segMemSize() int { - return segSize + s.dataMemSize -} - -// sackBlock returns a header.SACKBlock that represents this segment. -func (s *segment) sackBlock() header.SACKBlock { - return header.SACKBlock{Start: s.sequenceNumber, End: s.sequenceNumber.Add(s.logicalLen())} -} - -func (s *segment) TrimFront(ackLeft seqnum.Size) { - s.pkt.Data().TrimFront(int(ackLeft)) -} - -func (s *segment) ReadTo(dst io.Writer, peek bool) (int, error) { - return s.pkt.Data().ReadTo(dst, peek) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/segment_heap.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/segment_heap.go deleted file mode 100644 index 33dcc090a4..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/segment_heap.go +++ /dev/null @@ -1,51 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import "container/heap" - -type segmentHeap []*segment - -var _ heap.Interface = (*segmentHeap)(nil) - -// Len returns the length of h. -func (h *segmentHeap) Len() int { - return len(*h) -} - -// Less determines whether the i-th element of h is less than the j-th element. -func (h *segmentHeap) Less(i, j int) bool { - return (*h)[i].sequenceNumber.LessThan((*h)[j].sequenceNumber) -} - -// Swap swaps the i-th and j-th elements of h. -func (h *segmentHeap) Swap(i, j int) { - (*h)[i], (*h)[j] = (*h)[j], (*h)[i] -} - -// Push adds x as the last element of h. -func (h *segmentHeap) Push(x any) { - *h = append(*h, x.(*segment)) -} - -// Pop removes the last element of h and returns it. -func (h *segmentHeap) Pop() any { - old := *h - n := len(old) - x := old[n-1] - old[n-1] = nil - *h = old[:n-1] - return x -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/segment_queue.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/segment_queue.go deleted file mode 100644 index 6f003efc04..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/segment_queue.go +++ /dev/null @@ -1,103 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "gvisor.dev/gvisor/pkg/sync" -) - -// segmentQueue is a bounded, thread-safe queue of TCP segments. -// -// +stateify savable -type segmentQueue struct { - mu sync.Mutex `state:"nosave"` - list segmentList `state:"wait"` - ep *Endpoint - frozen bool -} - -// emptyLocked determines if the queue is empty. -// Preconditions: q.mu must be held. -func (q *segmentQueue) emptyLocked() bool { - return q.list.Empty() -} - -// empty determines if the queue is empty. -func (q *segmentQueue) empty() bool { - q.mu.Lock() - defer q.mu.Unlock() - return q.emptyLocked() -} - -// enqueue adds the given segment to the queue. -// -// Returns true when the segment is successfully added to the queue, in which -// case ownership of the reference is transferred to the queue. And returns -// false if the queue is full, in which case ownership is retained by the -// caller. -func (q *segmentQueue) enqueue(s *segment) bool { - // q.ep.receiveBufferParams() must be called without holding q.mu to - // avoid lock order inversion. - bufSz := q.ep.ops.GetReceiveBufferSize() - used := q.ep.receiveMemUsed() - - q.mu.Lock() - defer q.mu.Unlock() - - // Allow zero sized segments (ACK/FIN/RSTs etc even if the segment queue - // is currently full). - allow := (used <= int(bufSz) || s.payloadSize() == 0) && !q.frozen - - if allow { - s.IncRef() - q.list.PushBack(s) - // Set the owner now that the endpoint owns the segment. - s.setOwner(q.ep, recvQ) - } - - return allow -} - -// dequeue removes and returns the next segment from queue, if one exists. -// Ownership is transferred to the caller, who is responsible for decrementing -// the ref count when done. -func (q *segmentQueue) dequeue() *segment { - q.mu.Lock() - defer q.mu.Unlock() - - s := q.list.Front() - if s != nil { - q.list.Remove(s) - } - - return s -} - -// freeze prevents any more segments from being added to the queue. i.e all -// future segmentQueue.enqueue will return false and not add the segment to the -// queue till the queue is unfroze with a corresponding segmentQueue.thaw call. -func (q *segmentQueue) freeze() { - q.mu.Lock() - defer q.mu.Unlock() - q.frozen = true -} - -// thaw unfreezes a previously frozen queue using segmentQueue.freeze() and -// allows new segments to be queued again. -func (q *segmentQueue) thaw() { - q.mu.Lock() - defer q.mu.Unlock() - q.frozen = false -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/segment_state.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/segment_state.go deleted file mode 100644 index 76ab56294e..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/segment_state.go +++ /dev/null @@ -1,35 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "context" -) - -// saveOptions is invoked by stateify. -func (s *segment) saveOptions() []byte { - // We cannot save s.options directly as it may point to s.data's trimmed - // tail, which is not allowed by state framework (in-struct pointer). - b := make([]byte, 0, cap(s.options)) - return append(b, s.options...) -} - -// loadOptions is invoked by stateify. -func (s *segment) loadOptions(_ context.Context, options []byte) { - // NOTE: We cannot point s.options back into s.data's trimmed tail. But - // it is OK as they do not need to aliased. Plus, options is already - // allocated so there is no cost here. - s.options = options -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/segment_unsafe.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/segment_unsafe.go deleted file mode 100644 index 0ab7b8f56b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/segment_unsafe.go +++ /dev/null @@ -1,23 +0,0 @@ -// Copyright 2020 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "unsafe" -) - -const ( - segSize = int(unsafe.Sizeof(segment{})) -) diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/snd.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/snd.go deleted file mode 100644 index eb5beea04d..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/snd.go +++ /dev/null @@ -1,1814 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "fmt" - "math" - "sort" - "time" - - "gvisor.dev/gvisor/pkg/buffer" - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/seqnum" - "gvisor.dev/gvisor/pkg/tcpip/stack" -) - -const ( - // MinRTO is the minimum allowed value for the retransmit timeout. - MinRTO = 200 * time.Millisecond - - // MaxRTO is the maximum allowed value for the retransmit timeout. - MaxRTO = 120 * time.Second - - // MinSRTT is the minimum allowed value for smoothed RTT. - MinSRTT = 1 * time.Millisecond - - // InitialCwnd is the initial congestion window. - InitialCwnd = 10 - - // nDupAckThreshold is the number of duplicate ACK's required - // before fast-retransmit is entered. - nDupAckThreshold = 3 - - // MaxRetries is the maximum number of probe retries sender does - // before timing out the connection. - // Linux default TCP_RETR2, net.ipv4.tcp_retries2. - MaxRetries = 15 - - // InitialSsthresh is the the maximum int value, which depends on the - // platform. - InitialSsthresh = math.MaxInt - - // unknownRTT is used to indicate to congestion control algorithms that we - // were unable to measure the round-trip time when processing ACKs. - // Algorithms (such as HyStart) that use the round-trip time should ignore - // such Updates. - unknownRTT = time.Duration(-1) -) - -// congestionControl is an interface that must be implemented by any supported -// congestion control algorithm. -type congestionControl interface { - // HandleLossDetected is invoked when the loss is detected by RACK or - // sender.dupAckCount >= nDupAckThreshold just before entering fast - // retransmit. - HandleLossDetected() - - // HandleRTOExpired is invoked when the retransmit timer expires. - HandleRTOExpired() - - // Update is invoked when processing inbound acks. It's passed the - // number of packet's that were acked by the most recent cumulative - // acknowledgement. rtt is the round-trip time, or is set to unknownRTT - // (above) to indicate the time is unknown. - Update(packetsAcked int, rtt time.Duration) - - // PostRecovery is invoked when the sender is exiting a fast retransmit/ - // recovery phase. This provides congestion control algorithms a way - // to adjust their state when exiting recovery. - PostRecovery() -} - -// lossRecovery is an interface that must be implemented by any supported -// loss recovery algorithm. -type lossRecovery interface { - // DoRecovery is invoked when loss is detected and segments need - // to be retransmitted. The cumulative or selective ACK is passed along - // with the flag which identifies whether the connection entered fast - // retransmit with this ACK and to retransmit the first unacknowledged - // segment. - DoRecovery(rcvdSeg *segment, fastRetransmit bool) -} - -// sender holds the state necessary to send TCP segments. -// -// +stateify savable -type sender struct { - stack.TCPSenderState - ep *Endpoint - - // lr is the loss recovery algorithm used by the sender. - lr lossRecovery - - // firstRetransmittedSegXmitTime is the original transmit time of - // the first segment that was retransmitted due to RTO expiration. - firstRetransmittedSegXmitTime tcpip.MonotonicTime - - // zeroWindowProbing is set if the sender is currently probing - // for zero receive window. - zeroWindowProbing bool `state:"nosave"` - - // unackZeroWindowProbes is the number of unacknowledged zero - // window probes. - unackZeroWindowProbes uint32 `state:"nosave"` - - // writeNext is the next segment to write that hasn't already been - // written, i.e. the first payload starting at SND.NXT. - writeNext *segment - - // writeList holds all writable data: both unsent data and - // sent-but-unacknowledged data. Alternatively: it holds all bytes - // starting from SND.UNA. - writeList segmentList - - // resendTimer is used for RTOs. - resendTimer timer `state:"nosave"` - - // rtt.TCPRTTState.SRTT and rtt.TCPRTTState.RTTVar are the "smoothed - // round-trip time", and "round-trip time variation", as defined in - // section 2 of RFC 6298. - rtt rtt - - // minRTO is the minimum permitted value for sender.rto. - minRTO time.Duration - - // maxRTO is the maximum permitted value for sender.rto. - maxRTO time.Duration - - // maxRetries is the maximum permitted retransmissions. - maxRetries uint32 - - // gso is set if generic segmentation offload is enabled. - gso bool - - // state is the current state of congestion control for this endpoint. - state tcpip.CongestionControlState - - // cc is the congestion control algorithm in use for this sender. - cc congestionControl - - // rc has the fields needed for implementing RACK loss detection - // algorithm. - rc rackControl - - // reorderTimer is the timer used to retransmit the segments after RACK - // detects them as lost. - reorderTimer timer `state:"nosave"` - - // probeTimer is used to schedule PTO for RACK TLP algorithm. - probeTimer timer `state:"nosave"` - - // spuriousRecovery indicates whether the sender entered recovery - // spuriously as described in RFC3522 Section 3.2. - spuriousRecovery bool - - // retransmitTS is the timestamp at which the sender sends retransmitted - // segment after entering an RTO for the first time as described in - // RFC3522 Section 3.2. - retransmitTS uint32 - - // startCork start corking the segments. - startCork bool - - // corkTimer is used to drain the segments which are held when TCP_CORK - // option is enabled. - corkTimer timer `state:"nosave"` -} - -// rtt is a synchronization wrapper used to appease stateify. See the comment -// in sender, where it is used. -// -// +stateify savable -type rtt struct { - sync.Mutex `state:"nosave"` - - stack.TCPRTTState -} - -// +checklocks:ep.mu -func newSender(ep *Endpoint, iss, irs seqnum.Value, sndWnd seqnum.Size, mss uint16, sndWndScale int) *sender { - // The sender MUST reduce the TCP data length to account for any IP or - // TCP options that it is including in the packets that it sends. - // See: https://tools.ietf.org/html/rfc6691#section-2 - maxPayloadSize := int(mss) - ep.maxOptionSize() - - s := &sender{ - ep: ep, - TCPSenderState: stack.TCPSenderState{ - SndWnd: sndWnd, - SndUna: iss + 1, - SndNxt: iss + 1, - RTTMeasureSeqNum: iss + 1, - LastSendTime: ep.stack.Clock().NowMonotonic(), - MaxPayloadSize: maxPayloadSize, - MaxSentAck: irs + 1, - FastRecovery: stack.TCPFastRecoveryState{ - // See: https://tools.ietf.org/html/rfc6582#section-3.2 Step 1. - Last: iss, - HighRxt: iss, - RescueRxt: iss, - }, - RTO: 1 * time.Second, - }, - gso: ep.gso.Type != stack.GSONone, - } - - if s.gso { - s.ep.gso.MSS = uint16(maxPayloadSize) - } - - s.cc = s.initCongestionControl(ep.cc) - s.lr = s.initLossRecovery() - s.rc.init(s, iss) - - // A negative sndWndScale means that no scaling is in use, otherwise we - // store the scaling value. - if sndWndScale > 0 { - s.SndWndScale = uint8(sndWndScale) - } - - s.resendTimer.init(s.ep.stack.Clock(), timerHandler(s.ep, s.retransmitTimerExpired)) - s.reorderTimer.init(s.ep.stack.Clock(), timerHandler(s.ep, s.rc.reorderTimerExpired)) - s.probeTimer.init(s.ep.stack.Clock(), timerHandler(s.ep, s.probeTimerExpired)) - s.corkTimer.init(s.ep.stack.Clock(), timerHandler(s.ep, s.corkTimerExpired)) - - s.ep.AssertLockHeld(ep) - s.updateMaxPayloadSize(int(ep.route.MTU()), 0) - // Initialize SACK Scoreboard after updating max payload size as we use - // the maxPayloadSize as the smss when determining if a segment is lost - // etc. - s.ep.scoreboard = NewSACKScoreboard(uint16(s.MaxPayloadSize), iss) - - // Get Stack wide config. - var minRTO tcpip.TCPMinRTOOption - if err := ep.stack.TransportProtocolOption(ProtocolNumber, &minRTO); err != nil { - panic(fmt.Sprintf("unable to get minRTO from stack: %s", err)) - } - s.minRTO = time.Duration(minRTO) - - var maxRTO tcpip.TCPMaxRTOOption - if err := ep.stack.TransportProtocolOption(ProtocolNumber, &maxRTO); err != nil { - panic(fmt.Sprintf("unable to get maxRTO from stack: %s", err)) - } - s.maxRTO = time.Duration(maxRTO) - - var maxRetries tcpip.TCPMaxRetriesOption - if err := ep.stack.TransportProtocolOption(ProtocolNumber, &maxRetries); err != nil { - panic(fmt.Sprintf("unable to get maxRetries from stack: %s", err)) - } - s.maxRetries = uint32(maxRetries) - - return s -} - -// initCongestionControl initializes the specified congestion control module and -// returns a handle to it. It also initializes the sndCwnd and sndSsThresh to -// their initial values. -func (s *sender) initCongestionControl(congestionControlName tcpip.CongestionControlOption) congestionControl { - s.SndCwnd = InitialCwnd - s.Ssthresh = InitialSsthresh - - switch congestionControlName { - case ccCubic: - return newCubicCC(s) - case ccReno: - fallthrough - default: - return newRenoCC(s) - } -} - -// initLossRecovery initiates the loss recovery algorithm for the sender. -func (s *sender) initLossRecovery() lossRecovery { - if s.ep.SACKPermitted { - return newSACKRecovery(s) - } - return newRenoRecovery(s) -} - -// updateMaxPayloadSize updates the maximum payload size based on the given -// MTU. If this is in response to "packet too big" control packets (indicated -// by the count argument), it also reduces the number of outstanding packets and -// attempts to retransmit the first packet above the MTU size. -// +checklocks:s.ep.mu -func (s *sender) updateMaxPayloadSize(mtu, count int) { - m := mtu - header.TCPMinimumSize - - m -= s.ep.maxOptionSize() - - // We don't adjust up for now. - if m >= s.MaxPayloadSize { - return - } - - // Make sure we can transmit at least one byte. - if m <= 0 { - m = 1 - } - - oldMSS := s.MaxPayloadSize - s.MaxPayloadSize = m - if s.gso { - s.ep.gso.MSS = uint16(m) - } - - if count == 0 { - // updateMaxPayloadSize is also called when the sender is created. - // and there is no data to send in such cases. Return immediately. - return - } - - // Update the scoreboard's smss to reflect the new lowered - // maxPayloadSize. - s.ep.scoreboard.smss = uint16(m) - - s.Outstanding -= count - if s.Outstanding < 0 { - s.Outstanding = 0 - } - - // Rewind writeNext to the first segment exceeding the MTU. Do nothing - // if it is already before such a packet. - nextSeg := s.writeNext - for seg := s.writeList.Front(); seg != nil; seg = seg.Next() { - if seg == s.writeNext { - // We got to writeNext before we could find a segment - // exceeding the MTU. - break - } - - if nextSeg == s.writeNext && seg.payloadSize() > m { - // We found a segment exceeding the MTU. Rewind - // writeNext and try to retransmit it. - nextSeg = seg - } - - if s.ep.SACKPermitted && s.ep.scoreboard.IsSACKED(seg.sackBlock()) { - // Update sackedOut for new maximum payload size. - s.SackedOut -= s.pCount(seg, oldMSS) - s.SackedOut += s.pCount(seg, s.MaxPayloadSize) - } - } - - // Since we likely reduced the number of outstanding packets, we may be - // ready to send some more. - s.updateWriteNext(nextSeg) - s.sendData() -} - -// sendAck sends an ACK segment. -// +checklocks:s.ep.mu -func (s *sender) sendAck() { - s.sendEmptySegment(header.TCPFlagAck, s.SndNxt) -} - -// updateRTO updates the retransmit timeout when a new roud-trip time is -// available. This is done in accordance with section 2 of RFC 6298. -func (s *sender) updateRTO(rtt time.Duration) { - s.rtt.Lock() - if !s.rtt.TCPRTTState.SRTTInited { - s.rtt.TCPRTTState.RTTVar = rtt / 2 - s.rtt.TCPRTTState.SRTT = rtt - s.rtt.TCPRTTState.SRTTInited = true - } else { - diff := s.rtt.TCPRTTState.SRTT - rtt - if diff < 0 { - diff = -diff - } - // Use RFC6298 standard algorithm to update TCPRTTState.RTTVar and TCPRTTState.SRTT when - // no timestamps are available. - if !s.ep.SendTSOk { - s.rtt.TCPRTTState.RTTVar = (3*s.rtt.TCPRTTState.RTTVar + diff) / 4 - s.rtt.TCPRTTState.SRTT = (7*s.rtt.TCPRTTState.SRTT + rtt) / 8 - } else { - // When we are taking RTT measurements of every ACK then - // we need to use a modified method as specified in - // https://tools.ietf.org/html/rfc7323#appendix-G - if s.Outstanding == 0 { - s.rtt.Unlock() - return - } - // Netstack measures congestion window/inflight all in - // terms of packets and not bytes. This is similar to - // how linux also does cwnd and inflight. In practice - // this approximation works as expected. - expectedSamples := math.Ceil(float64(s.Outstanding) / 2) - - // alpha & beta values are the original values as recommended in - // https://tools.ietf.org/html/rfc6298#section-2.3. - const alpha = 0.125 - const beta = 0.25 - - alphaPrime := alpha / expectedSamples - betaPrime := beta / expectedSamples - rttVar := (1-betaPrime)*s.rtt.TCPRTTState.RTTVar.Seconds() + betaPrime*diff.Seconds() - srtt := (1-alphaPrime)*s.rtt.TCPRTTState.SRTT.Seconds() + alphaPrime*rtt.Seconds() - s.rtt.TCPRTTState.RTTVar = time.Duration(rttVar * float64(time.Second)) - s.rtt.TCPRTTState.SRTT = time.Duration(srtt * float64(time.Second)) - } - } - - if s.rtt.TCPRTTState.SRTT < MinSRTT { - s.rtt.TCPRTTState.SRTT = MinSRTT - } - - s.RTO = s.rtt.TCPRTTState.SRTT + 4*s.rtt.TCPRTTState.RTTVar - s.rtt.Unlock() - if s.RTO < s.minRTO { - s.RTO = s.minRTO - } - if s.RTO > s.maxRTO { - s.RTO = s.maxRTO - } -} - -// resendSegment resends the first unacknowledged segment. -// +checklocks:s.ep.mu -func (s *sender) resendSegment() { - // Don't use any segments we already sent to measure RTT as they may - // have been affected by packets being lost. - s.RTTMeasureSeqNum = s.SndNxt - - // Resend the segment. - if seg := s.writeList.Front(); seg != nil { - if seg.payloadSize() > s.MaxPayloadSize { - s.splitSeg(seg, s.MaxPayloadSize) - } - - // See: RFC 6675 section 5 Step 4.3 - // - // To prevent retransmission, set both the HighRXT and RescueRXT - // to the highest sequence number in the retransmitted segment. - s.FastRecovery.HighRxt = seg.sequenceNumber.Add(seqnum.Size(seg.payloadSize())) - 1 - s.FastRecovery.RescueRxt = seg.sequenceNumber.Add(seqnum.Size(seg.payloadSize())) - 1 - s.sendSegment(seg) - s.ep.stack.Stats().TCP.FastRetransmit.Increment() - s.ep.stats.SendErrors.FastRetransmit.Increment() - - // Run SetPipe() as per RFC 6675 section 5 Step 4.4 - s.SetPipe() - } -} - -// retransmitTimerExpired is called when the retransmit timer expires, and -// unacknowledged segments are assumed lost, and thus need to be resent. -// Returns true if the connection is still usable, or false if the connection -// is deemed lost. -// +checklocks:s.ep.mu -func (s *sender) retransmitTimerExpired() tcpip.Error { - // Check if the timer actually expired or if it's a spurious wake due - // to a previously orphaned runtime timer. - if s.resendTimer.isUninitialized() || !s.resendTimer.checkExpiration() { - return nil - } - - // Initialize the variables used to detect spurious recovery after - // entering RTO. - // - // See: https://www.rfc-editor.org/rfc/rfc3522.html#section-3.2 Step 1. - s.spuriousRecovery = false - s.retransmitTS = 0 - - // TODO(b/147297758): Band-aid fix, retransmitTimer can fire in some edge cases - // when writeList is empty. Remove this once we have a proper fix for this - // issue. - if s.writeList.Front() == nil { - return nil - } - - s.ep.stack.Stats().TCP.Timeouts.Increment() - s.ep.stats.SendErrors.Timeouts.Increment() - - // Set TLPRxtOut to false according to - // https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.6.1. - s.rc.tlpRxtOut = false - - // Give up if we've waited more than a minute since the last resend or - // if a user time out is set and we have exceeded the user specified - // timeout since the first retransmission. - uto := s.ep.userTimeout - - if s.firstRetransmittedSegXmitTime == (tcpip.MonotonicTime{}) { - // We store the original xmitTime of the segment that we are - // about to retransmit as the retransmission time. This is - // required as by the time the retransmitTimer has expired the - // segment has already been sent and unacked for the RTO at the - // time the segment was sent. - s.firstRetransmittedSegXmitTime = s.writeList.Front().xmitTime - } - - elapsed := s.ep.stack.Clock().NowMonotonic().Sub(s.firstRetransmittedSegXmitTime) - remaining := s.maxRTO - if uto != 0 { - // Cap to the user specified timeout if one is specified. - remaining = uto - elapsed - } - - // Always honor the user-timeout irrespective of whether the zero - // window probes were acknowledged. - // net/ipv4/tcp_timer.c::tcp_probe_timer() - if remaining <= 0 || s.unackZeroWindowProbes >= s.maxRetries { - s.ep.stack.Stats().TCP.EstablishedTimedout.Increment() - return &tcpip.ErrTimeout{} - } - - // Set new timeout. The timer will be restarted by the call to sendData - // below. - s.RTO *= 2 - // Cap the RTO as per RFC 1122 4.2.3.1, RFC 6298 5.5 - if s.RTO > s.maxRTO { - s.RTO = s.maxRTO - } - - // Cap RTO to remaining time. - if s.RTO > remaining { - s.RTO = remaining - } - - // See: https://tools.ietf.org/html/rfc6582#section-3.2 Step 4. - // - // Retransmit timeouts: - // After a retransmit timeout, record the highest sequence number - // transmitted in the variable recover, and exit the fast recovery - // procedure if applicable. - s.FastRecovery.Last = s.SndNxt - 1 - - if s.FastRecovery.Active { - // We were attempting fast recovery but were not successful. - // Leave the state. We don't need to update ssthresh because it - // has already been updated when entered fast-recovery. - s.leaveRecovery() - } - - // Record retransmitTS if the sender is not in recovery as per: - // https://datatracker.ietf.org/doc/html/rfc3522#section-3.2 Step 2 - s.recordRetransmitTS() - - s.state = tcpip.RTORecovery - s.cc.HandleRTOExpired() - - // Mark the next segment to be sent as the first unacknowledged one and - // start sending again. Set the number of outstanding packets to 0 so - // that we'll be able to retransmit. - // - // We'll keep on transmitting (or retransmitting) as we get acks for - // the data we transmit. - s.Outstanding = 0 - - // Expunge all SACK information as per https://tools.ietf.org/html/rfc6675#section-5.1 - // - // In order to avoid memory deadlocks, the TCP receiver is allowed to - // discard data that has already been selectively acknowledged. As a - // result, [RFC2018] suggests that a TCP sender SHOULD expunge the SACK - // information gathered from a receiver upon a retransmission timeout - // (RTO) "since the timeout might indicate that the data receiver has - // reneged." Additionally, a TCP sender MUST "ignore prior SACK - // information in determining which data to retransmit." - // - // NOTE: We take the stricter interpretation and just expunge all - // information as we lack more rigorous checks to validate if the SACK - // information is usable after an RTO. - s.ep.scoreboard.Reset() - s.updateWriteNext(s.writeList.Front()) - - // RFC 1122 4.2.2.17: Start sending zero window probes when we still see a - // zero receive window after retransmission interval and we have data to - // send. - if s.zeroWindowProbing { - s.sendZeroWindowProbe() - // RFC 1122 4.2.2.17: A TCP MAY keep its offered receive window closed - // indefinitely. As long as the receiving TCP continues to send - // acknowledgments in response to the probe segments, the sending TCP - // MUST allow the connection to stay open. - return nil - } - - seg := s.writeNext - // RFC 1122 4.2.3.5: Close the connection when the number of - // retransmissions for this segment is beyond a limit. - if seg != nil && seg.xmitCount > s.maxRetries { - s.ep.stack.Stats().TCP.EstablishedTimedout.Increment() - return &tcpip.ErrTimeout{} - } - - s.sendData() - - return nil -} - -// pCount returns the number of packets in the segment. Due to GSO, a segment -// can be composed of multiple packets. -func (s *sender) pCount(seg *segment, maxPayloadSize int) int { - size := seg.payloadSize() - if size == 0 { - return 1 - } - - return (size-1)/maxPayloadSize + 1 -} - -// splitSeg splits a given segment at the size specified and inserts the -// remainder as a new segment after the current one in the write list. -func (s *sender) splitSeg(seg *segment, size int) { - if seg.payloadSize() <= size { - return - } - // Split this segment up. - nSeg := seg.clone() - nSeg.pkt.Data().TrimFront(size) - nSeg.sequenceNumber.UpdateForward(seqnum.Size(size)) - s.writeList.InsertAfter(seg, nSeg) - - // The segment being split does not carry PUSH flag because it is - // followed by the newly split segment. - // RFC1122 section 4.2.2.2: MUST set the PSH bit in the last buffered - // segment (i.e., when there is no more queued data to be sent). - // Linux removes PSH flag only when the segment is being split over MSS - // and retains it when we are splitting the segment over lack of sender - // window space. - // ref: net/ipv4/tcp_output.c::tcp_write_xmit(), tcp_mss_split_point() - // ref: net/ipv4/tcp_output.c::tcp_write_wakeup(), tcp_snd_wnd_test() - if seg.payloadSize() > s.MaxPayloadSize { - seg.flags ^= header.TCPFlagPsh - } - seg.pkt.Data().CapLength(size) -} - -// NextSeg implements the RFC6675 NextSeg() operation. -// -// NextSeg starts scanning the writeList starting from nextSegHint and returns -// the hint to be passed on the next call to NextSeg. This is required to avoid -// iterating the write list repeatedly when NextSeg is invoked in a loop during -// recovery. The returned hint will be nil if there are no more segments that -// can match rules defined by NextSeg operation in RFC6675. -// -// rescueRtx will be true only if nextSeg is a rescue retransmission as -// described by Step 4) of the NextSeg algorithm. -func (s *sender) NextSeg(nextSegHint *segment) (nextSeg, hint *segment, rescueRtx bool) { - var s3 *segment - var s4 *segment - // Step 1. - for seg := nextSegHint; seg != nil; seg = seg.Next() { - // Stop iteration if we hit a segment that has never been - // transmitted (i.e. either it has no assigned sequence number - // or if it does have one, it's >= the next sequence number - // to be sent [i.e. >= s.sndNxt]). - if !s.isAssignedSequenceNumber(seg) || s.SndNxt.LessThanEq(seg.sequenceNumber) { - hint = nil - break - } - segSeq := seg.sequenceNumber - if smss := s.ep.scoreboard.SMSS(); seg.payloadSize() > int(smss) { - s.splitSeg(seg, int(smss)) - } - - // See RFC 6675 Section 4 - // - // 1. If there exists a smallest unSACKED sequence number - // 'S2' that meets the following 3 criteria for determinig - // loss, the sequence range of one segment of up to SMSS - // octets starting with S2 MUST be returned. - if !s.ep.scoreboard.IsSACKED(header.SACKBlock{Start: segSeq, End: segSeq.Add(1)}) { - // NextSeg(): - // - // (1.a) S2 is greater than HighRxt - // (1.b) S2 is less than highest octet covered by - // any received SACK. - if s.FastRecovery.HighRxt.LessThan(segSeq) && segSeq.LessThan(s.ep.scoreboard.maxSACKED) { - // NextSeg(): - // (1.c) IsLost(S2) returns true. - if s.ep.scoreboard.IsLost(segSeq) { - return seg, seg.Next(), false - } - - // NextSeg(): - // - // (3): If the conditions for rules (1) and (2) - // fail, but there exists an unSACKed sequence - // number S3 that meets the criteria for - // detecting loss given in steps 1.a and 1.b - // above (specifically excluding (1.c)) then one - // segment of upto SMSS octets starting with S3 - // SHOULD be returned. - if s3 == nil { - s3 = seg - hint = seg.Next() - } - } - // NextSeg(): - // - // (4) If the conditions for (1), (2) and (3) fail, - // but there exists outstanding unSACKED data, we - // provide the opportunity for a single "rescue" - // retransmission per entry into loss recovery. If - // HighACK is greater than RescueRxt (or RescueRxt - // is undefined), then one segment of upto SMSS - // octets that MUST include the highest outstanding - // unSACKed sequence number SHOULD be returned, and - // RescueRxt set to RecoveryPoint. HighRxt MUST NOT - // be updated. - if s.FastRecovery.RescueRxt.LessThan(s.SndUna - 1) { - if s4 != nil { - if s4.sequenceNumber.LessThan(segSeq) { - s4 = seg - } - } else { - s4 = seg - } - } - } - } - - // If we got here then no segment matched step (1). - // Step (2): "If no sequence number 'S2' per rule (1) - // exists but there exists available unsent data and the - // receiver's advertised window allows, the sequence - // range of one segment of up to SMSS octets of - // previously unsent data starting with sequence number - // HighData+1 MUST be returned." - for seg := s.writeNext; seg != nil; seg = seg.Next() { - if s.isAssignedSequenceNumber(seg) && seg.sequenceNumber.LessThan(s.SndNxt) { - continue - } - // We do not split the segment here to <= smss as it has - // potentially not been assigned a sequence number yet. - return seg, nil, false - } - - if s3 != nil { - return s3, hint, false - } - - return s4, nil, true -} - -// maybeSendSegment tries to send the specified segment and either coalesces -// other segments into this one or splits the specified segment based on the -// lower of the specified limit value or the receivers window size specified by -// end. -// +checklocks:s.ep.mu -func (s *sender) maybeSendSegment(seg *segment, limit int, end seqnum.Value) (sent bool) { - // We abuse the flags field to determine if we have already - // assigned a sequence number to this segment. - if !s.isAssignedSequenceNumber(seg) { - // Merge segments if allowed. - if seg.payloadSize() != 0 { - available := int(s.SndNxt.Size(end)) - if available > limit { - available = limit - } - - // nextTooBig indicates that the next segment was too - // large to entirely fit in the current segment. It - // would be possible to split the next segment and merge - // the portion that fits, but unexpectedly splitting - // segments can have user visible side-effects which can - // break applications. For example, RFC 7766 section 8 - // says that the length and data of a DNS response - // should be sent in the same TCP segment to avoid - // triggering bugs in poorly written DNS - // implementations. - var nextTooBig bool - for nSeg := seg.Next(); nSeg != nil && nSeg.payloadSize() != 0; nSeg = seg.Next() { - if seg.payloadSize()+nSeg.payloadSize() > available { - nextTooBig = true - break - } - seg.merge(nSeg) - s.writeList.Remove(nSeg) - nSeg.DecRef() - } - if !nextTooBig && seg.payloadSize() < available { - // Segment is not full. - if s.Outstanding > 0 && s.ep.ops.GetDelayOption() { - // Nagle's algorithm. From Wikipedia: - // Nagle's algorithm works by - // combining a number of small - // outgoing messages and sending them - // all at once. Specifically, as long - // as there is a sent packet for which - // the sender has received no - // acknowledgment, the sender should - // keep buffering its output until it - // has a full packet's worth of - // output, thus allowing output to be - // sent all at once. - return false - } - // With TCP_CORK, hold back until minimum of the available - // send space and MSS. - if s.ep.ops.GetCorkOption() { - if seg.payloadSize() < s.MaxPayloadSize { - if !s.startCork { - s.startCork = true - // Enable the timer for - // 200ms, after which - // the segments are drained. - s.corkTimer.enable(MinRTO) - } - return false - } - // Disable the TCP_CORK timer. - s.startCork = false - s.corkTimer.disable() - } - } - } - - // Assign flags. We don't do it above so that we can merge - // additional data if Nagle holds the segment. - seg.sequenceNumber = s.SndNxt - seg.flags = header.TCPFlagAck | header.TCPFlagPsh - } - - var segEnd seqnum.Value - if seg.payloadSize() == 0 { - if s.writeList.Back() != seg { - panic("FIN segments must be the final segment in the write list.") - } - seg.flags = header.TCPFlagAck | header.TCPFlagFin - segEnd = seg.sequenceNumber.Add(1) - // Update the state to reflect that we have now - // queued a FIN. - s.ep.updateConnDirectionState(connDirectionStateSndClosed) - switch s.ep.EndpointState() { - case StateCloseWait: - s.ep.setEndpointState(StateLastAck) - default: - s.ep.setEndpointState(StateFinWait1) - } - } else { - // We're sending a non-FIN segment. - if seg.flags&header.TCPFlagFin != 0 { - panic("Netstack queues FIN segments without data.") - } - - if !seg.sequenceNumber.LessThan(end) { - return false - } - - available := int(seg.sequenceNumber.Size(end)) - if available == 0 { - return false - } - - // If the whole segment or at least 1MSS sized segment cannot - // be accommodated in the receiver advertised window, skip - // splitting and sending of the segment. ref: - // net/ipv4/tcp_output.c::tcp_snd_wnd_test() - // - // Linux checks this for all segment transmits not triggered by - // a probe timer. On this condition, it defers the segment split - // and transmit to a short probe timer. - // - // ref: include/net/tcp.h::tcp_check_probe_timer() - // ref: net/ipv4/tcp_output.c::tcp_write_wakeup() - // - // Instead of defining a new transmit timer, we attempt to split - // the segment right here if there are no pending segments. If - // there are pending segments, segment transmits are deferred to - // the retransmit timer handler. - if s.SndUna != s.SndNxt { - switch { - case available >= seg.payloadSize(): - // OK to send, the whole segments fits in the - // receiver's advertised window. - case available >= s.MaxPayloadSize: - // OK to send, at least 1 MSS sized segment fits - // in the receiver's advertised window. - default: - return false - } - } - - // The segment size limit is computed as a function of sender - // congestion window and MSS. When sender congestion window is > - // 1, this limit can be larger than MSS. Ensure that the - // currently available send space is not greater than minimum of - // this limit and MSS. - if available > limit { - available = limit - } - - // If GSO is not in use then cap available to - // maxPayloadSize. When GSO is in use the gVisor GSO logic or - // the host GSO logic will cap the segment to the correct size. - if s.ep.gso.Type == stack.GSONone && available > s.MaxPayloadSize { - available = s.MaxPayloadSize - } - - if seg.payloadSize() > available { - // A negative value causes splitSeg to panic anyways, so just panic - // earlier to get more information about the cause. - // TOOD(b/357457079): Remove this panic once the cause of negative values - // of "available" is understood. - if available < 0 { - panic(fmt.Sprintf("got available=%d, want available>=0. limit %d, s.MaxPayloadSize %d, seg.payloadSize() %d, gso.MaxSize %d, gso.MSS %d", available, limit, s.MaxPayloadSize, seg.payloadSize(), s.ep.gso.MaxSize, s.ep.gso.MSS)) - } - s.splitSeg(seg, available) - } - - segEnd = seg.sequenceNumber.Add(seqnum.Size(seg.payloadSize())) - } - - s.sendSegment(seg) - - // Update sndNxt if we actually sent new data (as opposed to - // retransmitting some previously sent data). - if s.SndNxt.LessThan(segEnd) { - s.SndNxt = segEnd - } - - return true -} - -// zeroProbeJunk is data sent during zero window probes. Its value is -// irrelevant; since the sequence number has already been acknowledged it will -// be discarded. It's only here to avoid allocating. -var zeroProbeJunk = []byte{0} - -// +checklocks:s.ep.mu -func (s *sender) sendZeroWindowProbe() { - s.unackZeroWindowProbes++ - - // Send a zero window probe with sequence number pointing to the last - // acknowledged byte. Note that, like Linux, this isn't quite what RFC - // 9293 3.8.6.1 describes: we don't send the next byte in the stream, - // we re-send an ACKed byte to goad the receiver into responding. - pkt := stack.NewPacketBuffer(stack.PacketBufferOptions{ - Payload: buffer.MakeWithData(zeroProbeJunk), - }) - defer pkt.DecRef() - s.sendSegmentFromPacketBuffer(pkt, header.TCPFlagAck, s.SndUna-1) - - // Rearm the timer to continue probing. - s.resendTimer.enable(s.RTO) -} - -func (s *sender) enableZeroWindowProbing() { - s.zeroWindowProbing = true - // We piggyback the probing on the retransmit timer with the - // current retranmission interval, as we may start probing while - // segment retransmissions. - if s.firstRetransmittedSegXmitTime == (tcpip.MonotonicTime{}) { - s.firstRetransmittedSegXmitTime = s.ep.stack.Clock().NowMonotonic() - } - s.resendTimer.enable(s.RTO) -} - -func (s *sender) disableZeroWindowProbing() { - s.zeroWindowProbing = false - s.unackZeroWindowProbes = 0 - s.firstRetransmittedSegXmitTime = tcpip.MonotonicTime{} - s.resendTimer.disable() -} - -func (s *sender) postXmit(dataSent bool, shouldScheduleProbe bool) { - if dataSent { - // We sent data, so we should stop the keepalive timer to ensure - // that no keepalives are sent while there is pending data. - s.ep.disableKeepaliveTimer() - } - - // If the sender has advertised zero receive window and we have - // data to be sent out, start zero window probing to query the - // the remote for it's receive window size. - if s.writeNext != nil && s.SndWnd == 0 { - s.enableZeroWindowProbing() - } - - // If we have no more pending data, start the keepalive timer. - if s.SndUna == s.SndNxt { - s.ep.resetKeepaliveTimer(false) - } else { - // Enable timers if we have pending data. - if shouldScheduleProbe && s.shouldSchedulePTO() { - // Schedule PTO after transmitting new data that wasn't itself a TLP probe. - s.schedulePTO() - } else if !s.resendTimer.enabled() { - s.probeTimer.disable() - if s.Outstanding > 0 { - // Enable the resend timer if it's not enabled yet and there is - // outstanding data. - s.resendTimer.enable(s.RTO) - } - } - } -} - -// sendData sends new data segments. It is called when data becomes available or -// when the send window opens up. -// +checklocks:s.ep.mu -func (s *sender) sendData() { - limit := s.MaxPayloadSize - if s.gso { - limit = int(s.ep.gso.MaxSize - header.TCPTotalHeaderMaximumSize - 1) - } - end := s.SndUna.Add(s.SndWnd) - - // Reduce the congestion window to min(IW, cwnd) per RFC 5681, page 10. - // "A TCP SHOULD set cwnd to no more than RW before beginning - // transmission if the TCP has not sent data in the interval exceeding - // the retrasmission timeout." - if !s.FastRecovery.Active && s.state != tcpip.RTORecovery && s.ep.stack.Clock().NowMonotonic().Sub(s.LastSendTime) > s.RTO { - if s.SndCwnd > InitialCwnd { - s.SndCwnd = InitialCwnd - } - } - - var dataSent bool - for seg := s.writeNext; seg != nil && s.Outstanding < s.SndCwnd; seg = seg.Next() { - cwndLimit := (s.SndCwnd - s.Outstanding) * s.MaxPayloadSize - if cwndLimit < limit { - limit = cwndLimit - } - if s.isAssignedSequenceNumber(seg) && s.ep.SACKPermitted && s.ep.scoreboard.IsSACKED(seg.sackBlock()) { - // Move writeNext along so that we don't try and scan data that - // has already been SACKED. - s.updateWriteNext(seg.Next()) - continue - } - if sent := s.maybeSendSegment(seg, limit, end); !sent { - break - } - dataSent = true - s.Outstanding += s.pCount(seg, s.MaxPayloadSize) - s.updateWriteNext(seg.Next()) - } - - s.postXmit(dataSent, true /* shouldScheduleProbe */) -} - -func (s *sender) enterRecovery() { - // Initialize the variables used to detect spurious recovery after - // entering recovery. - // - // See: https://www.rfc-editor.org/rfc/rfc3522.html#section-3.2 Step 1. - s.spuriousRecovery = false - s.retransmitTS = 0 - - s.FastRecovery.Active = true - // Save state to reflect we're now in fast recovery. - // - // See : https://tools.ietf.org/html/rfc5681#section-3.2 Step 3. - // We inflate the cwnd by 3 to account for the 3 packets which triggered - // the 3 duplicate ACKs and are now not in flight. - s.SndCwnd = s.Ssthresh + 3 - s.SackedOut = 0 - s.DupAckCount = 0 - s.FastRecovery.First = s.SndUna - s.FastRecovery.Last = s.SndNxt - 1 - s.FastRecovery.MaxCwnd = s.SndCwnd + s.Outstanding - s.FastRecovery.HighRxt = s.SndUna - s.FastRecovery.RescueRxt = s.SndUna - - // Record retransmitTS if the sender is not in recovery as per: - // https://datatracker.ietf.org/doc/html/rfc3522#section-3.2 Step 2 - s.recordRetransmitTS() - - if s.ep.SACKPermitted { - s.state = tcpip.SACKRecovery - s.ep.stack.Stats().TCP.SACKRecovery.Increment() - // Set TLPRxtOut to false according to - // https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.6.1. - if s.rc.tlpRxtOut { - // The tail loss probe triggered recovery. - s.ep.stack.Stats().TCP.TLPRecovery.Increment() - } - s.rc.tlpRxtOut = false - return - } - s.state = tcpip.FastRecovery - s.ep.stack.Stats().TCP.FastRecovery.Increment() -} - -func (s *sender) leaveRecovery() { - s.FastRecovery.Active = false - s.FastRecovery.MaxCwnd = 0 - s.DupAckCount = 0 - - // Deflate cwnd. It had been artificially inflated when new dups arrived. - s.SndCwnd = s.Ssthresh - s.cc.PostRecovery() -} - -// isAssignedSequenceNumber relies on the fact that we only set flags once a -// sequencenumber is assigned and that is only done right before we send the -// segment. As a result any segment that has a non-zero flag has a valid -// sequence number assigned to it. -func (s *sender) isAssignedSequenceNumber(seg *segment) bool { - return seg.flags != 0 -} - -// SetPipe implements the SetPipe() function described in RFC6675. Netstack -// maintains the congestion window in number of packets and not bytes, so -// SetPipe() here measures number of outstanding packets rather than actual -// outstanding bytes in the network. -func (s *sender) SetPipe() { - // If SACK isn't permitted or it is permitted but recovery is not active - // then ignore pipe calculations. - if !s.ep.SACKPermitted || !s.FastRecovery.Active { - return - } - pipe := 0 - smss := seqnum.Size(s.ep.scoreboard.SMSS()) - for s1 := s.writeList.Front(); s1 != nil && s1.payloadSize() != 0 && s.isAssignedSequenceNumber(s1); s1 = s1.Next() { - // With GSO each segment can be much larger than SMSS. So check the segment - // in SMSS sized ranges. - segEnd := s1.sequenceNumber.Add(seqnum.Size(s1.payloadSize())) - for startSeq := s1.sequenceNumber; startSeq.LessThan(segEnd); startSeq = startSeq.Add(smss) { - endSeq := startSeq.Add(smss) - if segEnd.LessThan(endSeq) { - endSeq = segEnd - } - sb := header.SACKBlock{Start: startSeq, End: endSeq} - // SetPipe(): - // - // After initializing pipe to zero, the following steps are - // taken for each octet 'S1' in the sequence space between - // HighACK and HighData that has not been SACKed: - if !s1.sequenceNumber.LessThan(s.SndNxt) { - break - } - if s.ep.scoreboard.IsSACKED(sb) { - continue - } - - // SetPipe(): - // - // (a) If IsLost(S1) returns false, Pipe is incremened by 1. - // - // NOTE: here we mark the whole segment as lost. We do not try - // and test every byte in our write buffer as we maintain our - // pipe in terms of outstanding packets and not bytes. - if !s.ep.scoreboard.IsRangeLost(sb) { - pipe++ - } - // SetPipe(): - // (b) If S1 <= HighRxt, Pipe is incremented by 1. - if s1.sequenceNumber.LessThanEq(s.FastRecovery.HighRxt) { - pipe++ - } - } - } - s.Outstanding = pipe -} - -// shouldEnterRecovery returns true if the sender should enter fast recovery -// based on dupAck count and sack scoreboard. -// See RFC 6675 section 5. -func (s *sender) shouldEnterRecovery() bool { - return s.DupAckCount >= nDupAckThreshold || - (s.ep.SACKPermitted && s.ep.tcpRecovery&tcpip.TCPRACKLossDetection == 0 && s.ep.scoreboard.IsLost(s.SndUna)) -} - -// detectLoss is called when an ack is received and returns whether a loss is -// detected. It manages the state related to duplicate acks and determines if -// a retransmit is needed according to the rules in RFC 6582 (NewReno). -func (s *sender) detectLoss(seg *segment) (fastRetransmit bool) { - // We're not in fast recovery yet. - - // If RACK is enabled and there is no reordering we should honor the - // three duplicate ACK rule to enter recovery. - // See: https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-4 - if s.ep.SACKPermitted && s.ep.tcpRecovery&tcpip.TCPRACKLossDetection != 0 { - if s.rc.Reord { - return false - } - } - - if !s.isDupAck(seg) { - s.DupAckCount = 0 - return false - } - - s.DupAckCount++ - - // Do not enter fast recovery until we reach nDupAckThreshold or the - // first unacknowledged byte is considered lost as per SACK scoreboard. - if !s.shouldEnterRecovery() { - // RFC 6675 Step 3. - s.FastRecovery.HighRxt = s.SndUna - 1 - // Do run SetPipe() to calculate the outstanding segments. - s.SetPipe() - s.state = tcpip.Disorder - return false - } - - // See: https://tools.ietf.org/html/rfc6582#section-3.2 Step 2 - // - // We only do the check here, the incrementing of last to the highest - // sequence number transmitted till now is done when enterRecovery - // is invoked. - // - // Note that we only enter recovery when at least one more byte of data - // beyond s.fr.last (the highest byte that was outstanding when fast - // retransmit was last entered) is acked. - if !s.FastRecovery.Last.LessThan(seg.ackNumber - 1) { - s.DupAckCount = 0 - return false - } - s.cc.HandleLossDetected() - s.enterRecovery() - return true -} - -// isDupAck determines if seg is a duplicate ack as defined in -// https://tools.ietf.org/html/rfc5681#section-2. -func (s *sender) isDupAck(seg *segment) bool { - // A TCP that utilizes selective acknowledgments (SACKs) [RFC2018, RFC2883] - // can leverage the SACK information to determine when an incoming ACK is a - // "duplicate" (e.g., if the ACK contains previously unknown SACK - // information). - if s.ep.SACKPermitted && !seg.hasNewSACKInfo { - return false - } - - // (a) The receiver of the ACK has outstanding data. - return s.SndUna != s.SndNxt && - // (b) The incoming acknowledgment carries no data. - seg.logicalLen() == 0 && - // (c) The SYN and FIN bits are both off. - !seg.flags.Intersects(header.TCPFlagFin|header.TCPFlagSyn) && - // (d) the ACK number is equal to the greatest acknowledgment received on - // the given connection (TCP.UNA from RFC793). - seg.ackNumber == s.SndUna && - // (e) the advertised window in the incoming acknowledgment equals the - // advertised window in the last incoming acknowledgment. - s.SndWnd == seg.window -} - -// Iterate the writeList and update RACK for each segment which is newly acked -// either cumulatively or selectively. Loop through the segments which are -// sacked, and update the RACK related variables and check for reordering. -// Returns true when the DSACK block has been detected in the received ACK. -// -// See: https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.2 -// steps 2 and 3. -func (s *sender) walkSACK(rcvdSeg *segment) bool { - s.rc.setDSACKSeen(false) - - // Look for DSACK block. - hasDSACK := false - idx := 0 - n := len(rcvdSeg.parsedOptions.SACKBlocks) - if checkDSACK(rcvdSeg) { - dsackBlock := rcvdSeg.parsedOptions.SACKBlocks[0] - numDSACK := uint64(dsackBlock.End-dsackBlock.Start) / uint64(s.MaxPayloadSize) - // numDSACK can be zero when DSACK is sent for subsegments. - if numDSACK < 1 { - numDSACK = 1 - } - s.ep.stack.Stats().TCP.SegmentsAckedWithDSACK.IncrementBy(numDSACK) - s.rc.setDSACKSeen(true) - idx = 1 - n-- - hasDSACK = true - } - - if n == 0 { - return hasDSACK - } - - // Sort the SACK blocks. The first block is the most recent unacked - // block. The following blocks can be in arbitrary order. - sackBlocks := make([]header.SACKBlock, n) - copy(sackBlocks, rcvdSeg.parsedOptions.SACKBlocks[idx:]) - sort.Slice(sackBlocks, func(i, j int) bool { - return sackBlocks[j].Start.LessThan(sackBlocks[i].Start) - }) - - seg := s.writeList.Front() - for _, sb := range sackBlocks { - for seg != nil && seg.sequenceNumber.LessThan(sb.End) && seg.xmitCount != 0 { - if sb.Start.LessThanEq(seg.sequenceNumber) && !seg.acked { - s.rc.update(seg, rcvdSeg) - s.rc.detectReorder(seg) - seg.acked = true - s.SackedOut += s.pCount(seg, s.MaxPayloadSize) - } - seg = seg.Next() - } - } - return hasDSACK -} - -// checkDSACK checks if a DSACK is reported. -func checkDSACK(rcvdSeg *segment) bool { - n := len(rcvdSeg.parsedOptions.SACKBlocks) - if n == 0 { - return false - } - - sb := rcvdSeg.parsedOptions.SACKBlocks[0] - // Check if SACK block is invalid. - if sb.End.LessThan(sb.Start) { - return false - } - - // See: https://tools.ietf.org/html/rfc2883#section-5 DSACK is sent in - // at most one SACK block. DSACK is detected in the below two cases: - // * If the SACK sequence space is less than this cumulative ACK, it is - // an indication that the segment identified by the SACK block has - // been received more than once by the receiver. - // * If the sequence space in the first SACK block is greater than the - // cumulative ACK, then the sender next compares the sequence space - // in the first SACK block with the sequence space in the second SACK - // block, if there is one. This comparison can determine if the first - // SACK block is reporting duplicate data that lies above the - // cumulative ACK. - if sb.Start.LessThan(rcvdSeg.ackNumber) { - return true - } - - if n > 1 { - sb1 := rcvdSeg.parsedOptions.SACKBlocks[1] - if sb1.End.LessThan(sb1.Start) { - return false - } - - // If the first SACK block is fully covered by second SACK - // block, then the first block is a DSACK block. - if sb.End.LessThanEq(sb1.End) && sb1.Start.LessThanEq(sb.Start) { - return true - } - } - - return false -} - -func (s *sender) recordRetransmitTS() { - // See: https://datatracker.ietf.org/doc/html/rfc3522#section-3.2 - // - // The Eifel detection algorithm is used, only upon initiation of loss - // recovery, i.e., when either the timeout-based retransmit or the fast - // retransmit is sent. The Eifel detection algorithm MUST NOT be - // reinitiated after loss recovery has already started. In particular, - // it must not be reinitiated upon subsequent timeouts for the same - // segment, and not upon retransmitting segments other than the oldest - // outstanding segment, e.g., during selective loss recovery. - if s.inRecovery() { - return - } - - // See: https://datatracker.ietf.org/doc/html/rfc3522#section-3.2 Step 2 - // - // Set a "RetransmitTS" variable to the value of the Timestamp Value - // field of the Timestamps option included in the retransmit sent when - // loss recovery is initiated. A TCP sender must ensure that - // RetransmitTS does not get overwritten as loss recovery progresses, - // e.g., in case of a second timeout and subsequent second retransmit of - // the same octet. - s.retransmitTS = s.ep.tsValNow() -} - -func (s *sender) detectSpuriousRecovery(hasDSACK bool, tsEchoReply uint32) { - // Return if the sender has already detected spurious recovery. - if s.spuriousRecovery { - return - } - - // See: https://datatracker.ietf.org/doc/html/rfc3522#section-3.2 Step 4 - // - // If the value of the Timestamp Echo Reply field of the acceptable ACK's - // Timestamps option is smaller than the value of RetransmitTS, then - // proceed to next step, else return. - if tsEchoReply >= s.retransmitTS { - return - } - - // See: https://datatracker.ietf.org/doc/html/rfc3522#section-3.2 Step 5 - // - // If the acceptable ACK carries a DSACK option [RFC2883], then return. - if hasDSACK { - return - } - - // See: https://datatracker.ietf.org/doc/html/rfc3522#section-3.2 Step 5 - // - // If during the lifetime of the TCP connection the TCP sender has - // previously received an ACK with a DSACK option, or the acceptable ACK - // does not acknowledge all outstanding data, then proceed to next step, - // else return. - numDSACK := s.ep.stack.Stats().TCP.SegmentsAckedWithDSACK.Value() - if numDSACK == 0 && s.SndUna == s.SndNxt { - return - } - - // See: https://datatracker.ietf.org/doc/html/rfc3522#section-3.2 Step 6 - // - // If the loss recovery has been initiated with a timeout-based - // retransmit, then set - // SpuriousRecovery <- SPUR_TO (equal 1), - // else set - // SpuriousRecovery <- dupacks+1 - // Set the spurious recovery variable to true as we do not differentiate - // between fast, SACK or RTO recovery. - s.spuriousRecovery = true - s.ep.stack.Stats().TCP.SpuriousRecovery.Increment() - - // RFC 3522 will detect all kinds of spurious recoveries (fast, SACK and - // timeout). Increment the metric for RTO only as we want to track the - // number of timeout recoveries. - if s.state == tcpip.RTORecovery { - s.ep.stack.Stats().TCP.SpuriousRTORecovery.Increment() - } -} - -// Check if the sender is in RTORecovery, FastRecovery or SACKRecovery state. -func (s *sender) inRecovery() bool { - if s.state == tcpip.RTORecovery || s.state == tcpip.FastRecovery || s.state == tcpip.SACKRecovery { - return true - } - return false -} - -// handleRcvdSegment is called when a segment is received; it is responsible for -// updating the send-related state. -// +checklocks:s.ep.mu -// +checklocksalias:s.rc.snd.ep.mu=s.ep.mu -func (s *sender) handleRcvdSegment(rcvdSeg *segment) { - bestRTT := unknownRTT - - // Check if we can extract an RTT measurement from this ack. - if !rcvdSeg.parsedOptions.TS && s.RTTMeasureSeqNum.LessThan(rcvdSeg.ackNumber) { - bestRTT = s.ep.stack.Clock().NowMonotonic().Sub(s.RTTMeasureTime) - s.updateRTO(bestRTT) - s.RTTMeasureSeqNum = s.SndNxt - } - - // Update Timestamp if required. See RFC7323, section-4.3. - if s.ep.SendTSOk && rcvdSeg.parsedOptions.TS { - s.ep.updateRecentTimestamp(rcvdSeg.parsedOptions.TSVal, s.MaxSentAck, rcvdSeg.sequenceNumber) - } - - // Insert SACKBlock information into our scoreboard. - hasDSACK := false - if s.ep.SACKPermitted { - for _, sb := range rcvdSeg.parsedOptions.SACKBlocks { - // Only insert the SACK block if the following holds - // true: - // * SACK block acks data after the ack number in the - // current segment. - // * SACK block represents a sequence - // between sndUna and sndNxt (i.e. data that is - // currently unacked and in-flight). - // * SACK block that has not been SACKed already. - // - // NOTE: This check specifically excludes DSACK blocks - // which have start/end before sndUna and are used to - // indicate spurious retransmissions. - if rcvdSeg.ackNumber.LessThan(sb.Start) && s.SndUna.LessThan(sb.Start) && sb.End.LessThanEq(s.SndNxt) && !s.ep.scoreboard.IsSACKED(sb) { - s.ep.scoreboard.Insert(sb) - rcvdSeg.hasNewSACKInfo = true - } - } - - // See: https://tools.ietf.org/html/draft-ietf-tcpm-rack-08 - // section-7.2 - // * Step 2: Update RACK stats. - // If the ACK is not ignored as invalid, update the RACK.rtt - // to be the RTT sample calculated using this ACK, and - // continue. If this ACK or SACK was for the most recently - // sent packet, then record the RACK.xmit_ts timestamp and - // RACK.end_seq sequence implied by this ACK. - // * Step 3: Detect packet reordering. - // If the ACK selectively or cumulatively acknowledges an - // unacknowledged and also never retransmitted sequence below - // RACK.fack, then the corresponding packet has been - // reordered and RACK.reord is set to TRUE. - if s.ep.tcpRecovery&tcpip.TCPRACKLossDetection != 0 { - hasDSACK = s.walkSACK(rcvdSeg) - } - s.SetPipe() - } - - ack := rcvdSeg.ackNumber - fastRetransmit := false - // Do not leave fast recovery, if the ACK is out of range. - if s.FastRecovery.Active { - // Leave fast recovery if it acknowledges all the data covered by - // this fast recovery session. - if (ack-1).InRange(s.SndUna, s.SndNxt) && s.FastRecovery.Last.LessThan(ack) { - s.leaveRecovery() - } - } else { - // Detect loss by counting the duplicates and enter recovery. - fastRetransmit = s.detectLoss(rcvdSeg) - } - - // See if TLP based recovery was successful. - if s.ep.tcpRecovery&tcpip.TCPRACKLossDetection != 0 { - s.detectTLPRecovery(ack, rcvdSeg) - } - - // Stash away the current window size. - s.SndWnd = rcvdSeg.window - - // Disable zero window probing if remote advertises a non-zero receive - // window. This can be with an ACK to the zero window probe (where the - // acknumber refers to the already acknowledged byte) OR to any previously - // unacknowledged segment. - if s.zeroWindowProbing && rcvdSeg.window > 0 && - (ack == s.SndUna || (ack-1).InRange(s.SndUna, s.SndNxt)) { - s.disableZeroWindowProbing() - } - - // On receiving the ACK for the zero window probe, account for it and - // skip trying to send any segment as we are still probing for - // receive window to become non-zero. - if s.zeroWindowProbing && s.unackZeroWindowProbes > 0 && ack == s.SndUna { - s.unackZeroWindowProbes-- - return - } - - // Ignore ack if it doesn't acknowledge any new data. - if (ack - 1).InRange(s.SndUna, s.SndNxt) { - s.DupAckCount = 0 - - // See : https://tools.ietf.org/html/rfc1323#section-3.3. - // Specifically we should only update the RTO using TSEcr if the - // following condition holds: - // - // A TSecr value received in a segment is used to update the - // averaged RTT measurement only if the segment acknowledges - // some new data, i.e., only if it advances the left edge of - // the send window. - if s.ep.SendTSOk && rcvdSeg.parsedOptions.TSEcr != 0 { - tsRTT := s.ep.elapsed(s.ep.stack.Clock().NowMonotonic(), rcvdSeg.parsedOptions.TSEcr) - s.updateRTO(tsRTT) - // Following Linux, prefer RTT computed from ACKs to TSEcr because, - // "broken middle-boxes or peers may corrupt TS-ECR fields" - // https://github.com/torvalds/linux/blob/39cd87c4eb2b893354f3b850f916353f2658ae6f/net/ipv4/tcp_input.c#L3141C1-L3144C24 - if bestRTT == unknownRTT { - bestRTT = tsRTT - } - } - - if s.shouldSchedulePTO() { - // Schedule PTO upon receiving an ACK that cumulatively acknowledges data. - // See https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.5.1. - s.schedulePTO() - } else { - // When an ack is received we must rearm the timer. - // RFC 6298 5.3 - s.probeTimer.disable() - s.resendTimer.enable(s.RTO) - } - - // Remove all acknowledged data from the write list. - acked := s.SndUna.Size(ack) - s.SndUna = ack - ackLeft := acked - originalOutstanding := s.Outstanding - for ackLeft > 0 { - // We use logicalLen here because we can have FIN - // segments (which are always at the end of list) that - // have no data, but do consume a sequence number. - seg := s.writeList.Front() - if seg == nil { - panic(fmt.Sprintf("invalid state: there are %d unacknowledged bytes left, but the write list is empty:\n%+v", ackLeft, s.TCPSenderState)) - } - - datalen := seg.logicalLen() - if datalen > ackLeft { - prevCount := s.pCount(seg, s.MaxPayloadSize) - seg.TrimFront(ackLeft) - seg.sequenceNumber.UpdateForward(ackLeft) - s.Outstanding -= prevCount - s.pCount(seg, s.MaxPayloadSize) - break - } - - if s.writeNext == seg { - s.updateWriteNext(seg.Next()) - } - - // Update the RACK fields if SACK is enabled. - if s.ep.SACKPermitted && !seg.acked && s.ep.tcpRecovery&tcpip.TCPRACKLossDetection != 0 { - s.rc.update(seg, rcvdSeg) - s.rc.detectReorder(seg) - } - - s.writeList.Remove(seg) - - // If SACK is enabled then only reduce outstanding if - // the segment was not previously SACKED as these have - // already been accounted for in SetPipe(). - if !s.ep.SACKPermitted || !s.ep.scoreboard.IsSACKED(seg.sackBlock()) { - s.Outstanding -= s.pCount(seg, s.MaxPayloadSize) - } else { - s.SackedOut -= s.pCount(seg, s.MaxPayloadSize) - } - seg.DecRef() - ackLeft -= datalen - } - - // Clear SACK information for all acked data. - s.ep.scoreboard.Delete(s.SndUna) - - // Detect if the sender entered recovery spuriously. - if s.inRecovery() { - s.detectSpuriousRecovery(hasDSACK, rcvdSeg.parsedOptions.TSEcr) - } - - // If we are not in fast recovery then update the congestion - // window based on the number of acknowledged packets. - if !s.FastRecovery.Active { - s.cc.Update(originalOutstanding-s.Outstanding, bestRTT) - if s.FastRecovery.Last.LessThan(s.SndUna) { - s.state = tcpip.Open - // Update RACK when we are exiting fast or RTO - // recovery as described in the RFC - // draft-ietf-tcpm-rack-08 Section-7.2 Step 4. - if s.ep.tcpRecovery&tcpip.TCPRACKLossDetection != 0 { - s.rc.exitRecovery() - } - s.reorderTimer.disable() - } - } - - // Update the send buffer usage and notify potential waiters. - s.ep.updateSndBufferUsage(int(acked)) - - // It is possible for s.outstanding to drop below zero if we get - // a retransmit timeout, reset outstanding to zero but later - // get an ack that cover previously sent data. - if s.Outstanding < 0 { - s.Outstanding = 0 - } - - s.SetPipe() - - // If all outstanding data was acknowledged the disable the timer. - // RFC 6298 Rule 5.3 - if s.SndUna == s.SndNxt { - s.Outstanding = 0 - // Reset firstRetransmittedSegXmitTime to the zero value. - s.firstRetransmittedSegXmitTime = tcpip.MonotonicTime{} - s.resendTimer.disable() - s.probeTimer.disable() - } - } - - if s.ep.SACKPermitted && s.ep.tcpRecovery&tcpip.TCPRACKLossDetection != 0 { - // Update RACK reorder window. - // See: https://tools.ietf.org/html/draft-ietf-tcpm-rack-08#section-7.2 - // * Upon receiving an ACK: - // * Step 4: Update RACK reordering window - s.rc.updateRACKReorderWindow() - - // After the reorder window is calculated, detect any loss by checking - // if the time elapsed after the segments are sent is greater than the - // reorder window. - if numLost := s.rc.detectLoss(rcvdSeg.rcvdTime); numLost > 0 && !s.FastRecovery.Active { - // If any segment is marked as lost by - // RACK, enter recovery and retransmit - // the lost segments. - s.cc.HandleLossDetected() - s.enterRecovery() - fastRetransmit = true - } - - if s.FastRecovery.Active { - s.rc.DoRecovery(nil, fastRetransmit) - } - } - - // Now that we've popped all acknowledged data from the retransmit - // queue, retransmit if needed. - if s.FastRecovery.Active && s.ep.tcpRecovery&tcpip.TCPRACKLossDetection == 0 { - s.lr.DoRecovery(rcvdSeg, fastRetransmit) - // When SACK is enabled data sending is governed by steps in - // RFC 6675 Section 5 recovery steps A-C. - // See: https://tools.ietf.org/html/rfc6675#section-5. - if s.ep.SACKPermitted { - return - } - } - - // Send more data now that some of the pending data has been ack'd, or - // that the window opened up, or the congestion window was inflated due - // to a duplicate ack during fast recovery. This will also re-enable - // the retransmit timer if needed. - s.sendData() -} - -// sendSegment sends the specified segment. -// +checklocks:s.ep.mu -func (s *sender) sendSegment(seg *segment) tcpip.Error { - if seg.xmitCount > 0 { - s.ep.stack.Stats().TCP.Retransmits.Increment() - s.ep.stats.SendErrors.Retransmits.Increment() - if s.SndCwnd < s.Ssthresh { - s.ep.stack.Stats().TCP.SlowStartRetransmits.Increment() - } - } - seg.xmitTime = s.ep.stack.Clock().NowMonotonic() - seg.xmitCount++ - seg.lost = false - - err := s.sendSegmentFromPacketBuffer(seg.pkt, seg.flags, seg.sequenceNumber) - - // Every time a packet containing data is sent (including a - // retransmission), if SACK is enabled and we are retransmitting data - // then use the conservative timer described in RFC6675 Section 6.0, - // otherwise follow the standard time described in RFC6298 Section 5.1. - if err != nil && seg.payloadSize() != 0 { - if s.FastRecovery.Active && seg.xmitCount > 1 && s.ep.SACKPermitted { - s.resendTimer.enable(s.RTO) - } else { - if !s.resendTimer.enabled() { - s.resendTimer.enable(s.RTO) - } - } - } - - return err -} - -// sendSegmentFromPacketBuffer sends a new segment containing the given payload, -// flags and sequence number. -// +checklocks:s.ep.mu -// +checklocksalias:s.ep.rcv.ep.mu=s.ep.mu -func (s *sender) sendSegmentFromPacketBuffer(pkt *stack.PacketBuffer, flags header.TCPFlags, seq seqnum.Value) tcpip.Error { - s.LastSendTime = s.ep.stack.Clock().NowMonotonic() - if seq == s.RTTMeasureSeqNum { - s.RTTMeasureTime = s.LastSendTime - } - - rcvNxt, rcvWnd := s.ep.rcv.getSendParams() - - // Remember the max sent ack. - s.MaxSentAck = rcvNxt - - // We need to clone the packet because sendRaw takes ownership of pkt, - // and pkt could be reprocessed later on (i.e retrasmission). - pkt = pkt.Clone() - defer pkt.DecRef() - - return s.ep.sendRaw(pkt, flags, seq, rcvNxt, rcvWnd) -} - -// sendEmptySegment sends a new empty segment, flags and sequence number. -// +checklocks:s.ep.mu -// +checklocksalias:s.ep.rcv.ep.mu=s.ep.mu -func (s *sender) sendEmptySegment(flags header.TCPFlags, seq seqnum.Value) tcpip.Error { - s.LastSendTime = s.ep.stack.Clock().NowMonotonic() - if seq == s.RTTMeasureSeqNum { - s.RTTMeasureTime = s.LastSendTime - } - - rcvNxt, rcvWnd := s.ep.rcv.getSendParams() - - // Remember the max sent ack. - s.MaxSentAck = rcvNxt - - return s.ep.sendEmptyRaw(flags, seq, rcvNxt, rcvWnd) -} - -// maybeSendOutOfWindowAck sends an ACK if we are not being rate limited -// currently. -// +checklocks:s.ep.mu -func (s *sender) maybeSendOutOfWindowAck(seg *segment) { - // Data packets are unlikely to be part of an ACK loop. So always send - // an ACK for a packet w/ data. - if seg.payloadSize() > 0 || s.ep.allowOutOfWindowAck() { - s.sendAck() - } -} - -func (s *sender) updateWriteNext(seg *segment) { - if s.writeNext != nil { - s.writeNext.DecRef() - } - if seg != nil { - seg.IncRef() - } - s.writeNext = seg -} - -// corkTimerExpired drains all the segments when TCP_CORK is enabled. -// +checklocks:s.ep.mu -func (s *sender) corkTimerExpired() tcpip.Error { - // Check if the timer actually expired or if it's a spurious wake due - // to a previously orphaned runtime timer. - if s.corkTimer.isUninitialized() || !s.corkTimer.checkExpiration() { - return nil - } - - // Assign sequence number and flags to the segment. - seg := s.writeNext - if seg == nil { - return nil - } - seg.sequenceNumber = s.SndNxt - seg.flags = header.TCPFlagAck | header.TCPFlagPsh - // Drain all the segments. - s.sendData() - return nil -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/tcp_endpoint_list.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/tcp_endpoint_list.go deleted file mode 100644 index 67bfa99960..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/tcp_endpoint_list.go +++ /dev/null @@ -1,239 +0,0 @@ -package tcp - -// ElementMapper provides an identity mapping by default. -// -// This can be replaced to provide a struct that maps elements to linker -// objects, if they are not the same. An ElementMapper is not typically -// required if: Linker is left as is, Element is left as is, or Linker and -// Element are the same type. -type endpointElementMapper struct{} - -// linkerFor maps an Element to a Linker. -// -// This default implementation should be inlined. -// -//go:nosplit -func (endpointElementMapper) linkerFor(elem *Endpoint) *Endpoint { return elem } - -// List is an intrusive list. Entries can be added to or removed from the list -// in O(1) time and with no additional memory allocations. -// -// The zero value for List is an empty list ready to use. -// -// To iterate over a list (where l is a List): -// -// for e := l.Front(); e != nil; e = e.Next() { -// // do something with e. -// } -// -// +stateify savable -type endpointList struct { - head *Endpoint - tail *Endpoint -} - -// Reset resets list l to the empty state. -func (l *endpointList) Reset() { - l.head = nil - l.tail = nil -} - -// Empty returns true iff the list is empty. -// -//go:nosplit -func (l *endpointList) Empty() bool { - return l.head == nil -} - -// Front returns the first element of list l or nil. -// -//go:nosplit -func (l *endpointList) Front() *Endpoint { - return l.head -} - -// Back returns the last element of list l or nil. -// -//go:nosplit -func (l *endpointList) Back() *Endpoint { - return l.tail -} - -// Len returns the number of elements in the list. -// -// NOTE: This is an O(n) operation. -// -//go:nosplit -func (l *endpointList) Len() (count int) { - for e := l.Front(); e != nil; e = (endpointElementMapper{}.linkerFor(e)).Next() { - count++ - } - return count -} - -// PushFront inserts the element e at the front of list l. -// -//go:nosplit -func (l *endpointList) PushFront(e *Endpoint) { - linker := endpointElementMapper{}.linkerFor(e) - linker.SetNext(l.head) - linker.SetPrev(nil) - if l.head != nil { - endpointElementMapper{}.linkerFor(l.head).SetPrev(e) - } else { - l.tail = e - } - - l.head = e -} - -// PushFrontList inserts list m at the start of list l, emptying m. -// -//go:nosplit -func (l *endpointList) PushFrontList(m *endpointList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - endpointElementMapper{}.linkerFor(l.head).SetPrev(m.tail) - endpointElementMapper{}.linkerFor(m.tail).SetNext(l.head) - - l.head = m.head - } - m.head = nil - m.tail = nil -} - -// PushBack inserts the element e at the back of list l. -// -//go:nosplit -func (l *endpointList) PushBack(e *Endpoint) { - linker := endpointElementMapper{}.linkerFor(e) - linker.SetNext(nil) - linker.SetPrev(l.tail) - if l.tail != nil { - endpointElementMapper{}.linkerFor(l.tail).SetNext(e) - } else { - l.head = e - } - - l.tail = e -} - -// PushBackList inserts list m at the end of list l, emptying m. -// -//go:nosplit -func (l *endpointList) PushBackList(m *endpointList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - endpointElementMapper{}.linkerFor(l.tail).SetNext(m.head) - endpointElementMapper{}.linkerFor(m.head).SetPrev(l.tail) - - l.tail = m.tail - } - m.head = nil - m.tail = nil -} - -// InsertAfter inserts e after b. -// -//go:nosplit -func (l *endpointList) InsertAfter(b, e *Endpoint) { - bLinker := endpointElementMapper{}.linkerFor(b) - eLinker := endpointElementMapper{}.linkerFor(e) - - a := bLinker.Next() - - eLinker.SetNext(a) - eLinker.SetPrev(b) - bLinker.SetNext(e) - - if a != nil { - endpointElementMapper{}.linkerFor(a).SetPrev(e) - } else { - l.tail = e - } -} - -// InsertBefore inserts e before a. -// -//go:nosplit -func (l *endpointList) InsertBefore(a, e *Endpoint) { - aLinker := endpointElementMapper{}.linkerFor(a) - eLinker := endpointElementMapper{}.linkerFor(e) - - b := aLinker.Prev() - eLinker.SetNext(a) - eLinker.SetPrev(b) - aLinker.SetPrev(e) - - if b != nil { - endpointElementMapper{}.linkerFor(b).SetNext(e) - } else { - l.head = e - } -} - -// Remove removes e from l. -// -//go:nosplit -func (l *endpointList) Remove(e *Endpoint) { - linker := endpointElementMapper{}.linkerFor(e) - prev := linker.Prev() - next := linker.Next() - - if prev != nil { - endpointElementMapper{}.linkerFor(prev).SetNext(next) - } else if l.head == e { - l.head = next - } - - if next != nil { - endpointElementMapper{}.linkerFor(next).SetPrev(prev) - } else if l.tail == e { - l.tail = prev - } - - linker.SetNext(nil) - linker.SetPrev(nil) -} - -// Entry is a default implementation of Linker. Users can add anonymous fields -// of this type to their structs to make them automatically implement the -// methods needed by List. -// -// +stateify savable -type endpointEntry struct { - next *Endpoint - prev *Endpoint -} - -// Next returns the entry that follows e in the list. -// -//go:nosplit -func (e *endpointEntry) Next() *Endpoint { - return e.next -} - -// Prev returns the entry that precedes e in the list. -// -//go:nosplit -func (e *endpointEntry) Prev() *Endpoint { - return e.prev -} - -// SetNext assigns 'entry' as the entry that follows e in the list. -// -//go:nosplit -func (e *endpointEntry) SetNext(elem *Endpoint) { - e.next = elem -} - -// SetPrev assigns 'entry' as the entry that precedes e in the list. -// -//go:nosplit -func (e *endpointEntry) SetPrev(elem *Endpoint) { - e.prev = elem -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/tcp_segment_list.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/tcp_segment_list.go deleted file mode 100644 index 770adb4574..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/tcp_segment_list.go +++ /dev/null @@ -1,239 +0,0 @@ -package tcp - -// ElementMapper provides an identity mapping by default. -// -// This can be replaced to provide a struct that maps elements to linker -// objects, if they are not the same. An ElementMapper is not typically -// required if: Linker is left as is, Element is left as is, or Linker and -// Element are the same type. -type segmentElementMapper struct{} - -// linkerFor maps an Element to a Linker. -// -// This default implementation should be inlined. -// -//go:nosplit -func (segmentElementMapper) linkerFor(elem *segment) *segment { return elem } - -// List is an intrusive list. Entries can be added to or removed from the list -// in O(1) time and with no additional memory allocations. -// -// The zero value for List is an empty list ready to use. -// -// To iterate over a list (where l is a List): -// -// for e := l.Front(); e != nil; e = e.Next() { -// // do something with e. -// } -// -// +stateify savable -type segmentList struct { - head *segment - tail *segment -} - -// Reset resets list l to the empty state. -func (l *segmentList) Reset() { - l.head = nil - l.tail = nil -} - -// Empty returns true iff the list is empty. -// -//go:nosplit -func (l *segmentList) Empty() bool { - return l.head == nil -} - -// Front returns the first element of list l or nil. -// -//go:nosplit -func (l *segmentList) Front() *segment { - return l.head -} - -// Back returns the last element of list l or nil. -// -//go:nosplit -func (l *segmentList) Back() *segment { - return l.tail -} - -// Len returns the number of elements in the list. -// -// NOTE: This is an O(n) operation. -// -//go:nosplit -func (l *segmentList) Len() (count int) { - for e := l.Front(); e != nil; e = (segmentElementMapper{}.linkerFor(e)).Next() { - count++ - } - return count -} - -// PushFront inserts the element e at the front of list l. -// -//go:nosplit -func (l *segmentList) PushFront(e *segment) { - linker := segmentElementMapper{}.linkerFor(e) - linker.SetNext(l.head) - linker.SetPrev(nil) - if l.head != nil { - segmentElementMapper{}.linkerFor(l.head).SetPrev(e) - } else { - l.tail = e - } - - l.head = e -} - -// PushFrontList inserts list m at the start of list l, emptying m. -// -//go:nosplit -func (l *segmentList) PushFrontList(m *segmentList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - segmentElementMapper{}.linkerFor(l.head).SetPrev(m.tail) - segmentElementMapper{}.linkerFor(m.tail).SetNext(l.head) - - l.head = m.head - } - m.head = nil - m.tail = nil -} - -// PushBack inserts the element e at the back of list l. -// -//go:nosplit -func (l *segmentList) PushBack(e *segment) { - linker := segmentElementMapper{}.linkerFor(e) - linker.SetNext(nil) - linker.SetPrev(l.tail) - if l.tail != nil { - segmentElementMapper{}.linkerFor(l.tail).SetNext(e) - } else { - l.head = e - } - - l.tail = e -} - -// PushBackList inserts list m at the end of list l, emptying m. -// -//go:nosplit -func (l *segmentList) PushBackList(m *segmentList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - segmentElementMapper{}.linkerFor(l.tail).SetNext(m.head) - segmentElementMapper{}.linkerFor(m.head).SetPrev(l.tail) - - l.tail = m.tail - } - m.head = nil - m.tail = nil -} - -// InsertAfter inserts e after b. -// -//go:nosplit -func (l *segmentList) InsertAfter(b, e *segment) { - bLinker := segmentElementMapper{}.linkerFor(b) - eLinker := segmentElementMapper{}.linkerFor(e) - - a := bLinker.Next() - - eLinker.SetNext(a) - eLinker.SetPrev(b) - bLinker.SetNext(e) - - if a != nil { - segmentElementMapper{}.linkerFor(a).SetPrev(e) - } else { - l.tail = e - } -} - -// InsertBefore inserts e before a. -// -//go:nosplit -func (l *segmentList) InsertBefore(a, e *segment) { - aLinker := segmentElementMapper{}.linkerFor(a) - eLinker := segmentElementMapper{}.linkerFor(e) - - b := aLinker.Prev() - eLinker.SetNext(a) - eLinker.SetPrev(b) - aLinker.SetPrev(e) - - if b != nil { - segmentElementMapper{}.linkerFor(b).SetNext(e) - } else { - l.head = e - } -} - -// Remove removes e from l. -// -//go:nosplit -func (l *segmentList) Remove(e *segment) { - linker := segmentElementMapper{}.linkerFor(e) - prev := linker.Prev() - next := linker.Next() - - if prev != nil { - segmentElementMapper{}.linkerFor(prev).SetNext(next) - } else if l.head == e { - l.head = next - } - - if next != nil { - segmentElementMapper{}.linkerFor(next).SetPrev(prev) - } else if l.tail == e { - l.tail = prev - } - - linker.SetNext(nil) - linker.SetPrev(nil) -} - -// Entry is a default implementation of Linker. Users can add anonymous fields -// of this type to their structs to make them automatically implement the -// methods needed by List. -// -// +stateify savable -type segmentEntry struct { - next *segment - prev *segment -} - -// Next returns the entry that follows e in the list. -// -//go:nosplit -func (e *segmentEntry) Next() *segment { - return e.next -} - -// Prev returns the entry that precedes e in the list. -// -//go:nosplit -func (e *segmentEntry) Prev() *segment { - return e.prev -} - -// SetNext assigns 'entry' as the entry that follows e in the list. -// -//go:nosplit -func (e *segmentEntry) SetNext(elem *segment) { - e.next = elem -} - -// SetPrev assigns 'entry' as the entry that precedes e in the list. -// -//go:nosplit -func (e *segmentEntry) SetPrev(elem *segment) { - e.prev = elem -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/tcp_segment_refs.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/tcp_segment_refs.go deleted file mode 100644 index a06b3f35f5..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/tcp_segment_refs.go +++ /dev/null @@ -1,142 +0,0 @@ -package tcp - -import ( - "context" - "fmt" - - "gvisor.dev/gvisor/pkg/atomicbitops" - "gvisor.dev/gvisor/pkg/refs" -) - -// enableLogging indicates whether reference-related events should be logged (with -// stack traces). This is false by default and should only be set to true for -// debugging purposes, as it can generate an extremely large amount of output -// and drastically degrade performance. -const segmentenableLogging = false - -// obj is used to customize logging. Note that we use a pointer to T so that -// we do not copy the entire object when passed as a format parameter. -var segmentobj *segment - -// Refs implements refs.RefCounter. It keeps a reference count using atomic -// operations and calls the destructor when the count reaches zero. -// -// NOTE: Do not introduce additional fields to the Refs struct. It is used by -// many filesystem objects, and we want to keep it as small as possible (i.e., -// the same size as using an int64 directly) to avoid taking up extra cache -// space. In general, this template should not be extended at the cost of -// performance. If it does not offer enough flexibility for a particular object -// (example: b/187877947), we should implement the RefCounter/CheckedObject -// interfaces manually. -// -// +stateify savable -type segmentRefs struct { - // refCount is composed of two fields: - // - // [32-bit speculative references]:[32-bit real references] - // - // Speculative references are used for TryIncRef, to avoid a CompareAndSwap - // loop. See IncRef, DecRef and TryIncRef for details of how these fields are - // used. - refCount atomicbitops.Int64 -} - -// InitRefs initializes r with one reference and, if enabled, activates leak -// checking. -func (r *segmentRefs) InitRefs() { - - r.refCount.RacyStore(1) - refs.Register(r) -} - -// RefType implements refs.CheckedObject.RefType. -func (r *segmentRefs) RefType() string { - return fmt.Sprintf("%T", segmentobj)[1:] -} - -// LeakMessage implements refs.CheckedObject.LeakMessage. -func (r *segmentRefs) LeakMessage() string { - return fmt.Sprintf("[%s %p] reference count of %d instead of 0", r.RefType(), r, r.ReadRefs()) -} - -// LogRefs implements refs.CheckedObject.LogRefs. -func (r *segmentRefs) LogRefs() bool { - return segmentenableLogging -} - -// ReadRefs returns the current number of references. The returned count is -// inherently racy and is unsafe to use without external synchronization. -func (r *segmentRefs) ReadRefs() int64 { - return r.refCount.Load() -} - -// IncRef implements refs.RefCounter.IncRef. -// -//go:nosplit -func (r *segmentRefs) IncRef() { - v := r.refCount.Add(1) - if segmentenableLogging { - refs.LogIncRef(r, v) - } - if v <= 1 { - panic(fmt.Sprintf("Incrementing non-positive count %p on %s", r, r.RefType())) - } -} - -// TryIncRef implements refs.TryRefCounter.TryIncRef. -// -// To do this safely without a loop, a speculative reference is first acquired -// on the object. This allows multiple concurrent TryIncRef calls to distinguish -// other TryIncRef calls from genuine references held. -// -//go:nosplit -func (r *segmentRefs) TryIncRef() bool { - const speculativeRef = 1 << 32 - if v := r.refCount.Add(speculativeRef); int32(v) == 0 { - - r.refCount.Add(-speculativeRef) - return false - } - - v := r.refCount.Add(-speculativeRef + 1) - if segmentenableLogging { - refs.LogTryIncRef(r, v) - } - return true -} - -// DecRef implements refs.RefCounter.DecRef. -// -// Note that speculative references are counted here. Since they were added -// prior to real references reaching zero, they will successfully convert to -// real references. In other words, we see speculative references only in the -// following case: -// -// A: TryIncRef [speculative increase => sees non-negative references] -// B: DecRef [real decrease] -// A: TryIncRef [transform speculative to real] -// -//go:nosplit -func (r *segmentRefs) DecRef(destroy func()) { - v := r.refCount.Add(-1) - if segmentenableLogging { - refs.LogDecRef(r, v) - } - switch { - case v < 0: - panic(fmt.Sprintf("Decrementing non-positive ref count %p, owned by %s", r, r.RefType())) - - case v == 0: - refs.Unregister(r) - - if destroy != nil { - destroy() - } - } -} - -func (r *segmentRefs) afterLoad(context.Context) { - if r.ReadRefs() > 0 { - refs.Register(r) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/tcp_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/tcp_state_autogen.go deleted file mode 100644 index 7bfef39e66..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/tcp_state_autogen.go +++ /dev/null @@ -1,1301 +0,0 @@ -// automatically generated by stateify. - -package tcp - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (a *acceptQueue) StateTypeName() string { - return "pkg/tcpip/transport/tcp.acceptQueue" -} - -func (a *acceptQueue) StateFields() []string { - return []string{ - "endpoints", - "pendingEndpoints", - "capacity", - } -} - -func (a *acceptQueue) beforeSave() {} - -// +checklocksignore -func (a *acceptQueue) StateSave(stateSinkObject state.Sink) { - a.beforeSave() - var endpointsValue []*Endpoint - endpointsValue = a.saveEndpoints() - stateSinkObject.SaveValue(0, endpointsValue) - stateSinkObject.Save(1, &a.pendingEndpoints) - stateSinkObject.Save(2, &a.capacity) -} - -func (a *acceptQueue) afterLoad(context.Context) {} - -// +checklocksignore -func (a *acceptQueue) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(1, &a.pendingEndpoints) - stateSourceObject.Load(2, &a.capacity) - stateSourceObject.LoadValue(0, new([]*Endpoint), func(y any) { a.loadEndpoints(ctx, y.([]*Endpoint)) }) -} - -func (h *handshake) StateTypeName() string { - return "pkg/tcpip/transport/tcp.handshake" -} - -func (h *handshake) StateFields() []string { - return []string{ - "ep", - "listenEP", - "state", - "active", - "flags", - "ackNum", - "iss", - "rcvWnd", - "sndWnd", - "mss", - "sndWndScale", - "rcvWndScale", - "startTime", - "deferAccept", - "acked", - "sendSYNOpts", - "sampleRTTWithTSOnly", - } -} - -func (h *handshake) beforeSave() {} - -// +checklocksignore -func (h *handshake) StateSave(stateSinkObject state.Sink) { - h.beforeSave() - stateSinkObject.Save(0, &h.ep) - stateSinkObject.Save(1, &h.listenEP) - stateSinkObject.Save(2, &h.state) - stateSinkObject.Save(3, &h.active) - stateSinkObject.Save(4, &h.flags) - stateSinkObject.Save(5, &h.ackNum) - stateSinkObject.Save(6, &h.iss) - stateSinkObject.Save(7, &h.rcvWnd) - stateSinkObject.Save(8, &h.sndWnd) - stateSinkObject.Save(9, &h.mss) - stateSinkObject.Save(10, &h.sndWndScale) - stateSinkObject.Save(11, &h.rcvWndScale) - stateSinkObject.Save(12, &h.startTime) - stateSinkObject.Save(13, &h.deferAccept) - stateSinkObject.Save(14, &h.acked) - stateSinkObject.Save(15, &h.sendSYNOpts) - stateSinkObject.Save(16, &h.sampleRTTWithTSOnly) -} - -func (h *handshake) afterLoad(context.Context) {} - -// +checklocksignore -func (h *handshake) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &h.ep) - stateSourceObject.Load(1, &h.listenEP) - stateSourceObject.Load(2, &h.state) - stateSourceObject.Load(3, &h.active) - stateSourceObject.Load(4, &h.flags) - stateSourceObject.Load(5, &h.ackNum) - stateSourceObject.Load(6, &h.iss) - stateSourceObject.Load(7, &h.rcvWnd) - stateSourceObject.Load(8, &h.sndWnd) - stateSourceObject.Load(9, &h.mss) - stateSourceObject.Load(10, &h.sndWndScale) - stateSourceObject.Load(11, &h.rcvWndScale) - stateSourceObject.Load(12, &h.startTime) - stateSourceObject.Load(13, &h.deferAccept) - stateSourceObject.Load(14, &h.acked) - stateSourceObject.Load(15, &h.sendSYNOpts) - stateSourceObject.Load(16, &h.sampleRTTWithTSOnly) -} - -func (c *cubicState) StateTypeName() string { - return "pkg/tcpip/transport/tcp.cubicState" -} - -func (c *cubicState) StateFields() []string { - return []string{ - "TCPCubicState", - "numCongestionEvents", - "s", - } -} - -func (c *cubicState) beforeSave() {} - -// +checklocksignore -func (c *cubicState) StateSave(stateSinkObject state.Sink) { - c.beforeSave() - stateSinkObject.Save(0, &c.TCPCubicState) - stateSinkObject.Save(1, &c.numCongestionEvents) - stateSinkObject.Save(2, &c.s) -} - -func (c *cubicState) afterLoad(context.Context) {} - -// +checklocksignore -func (c *cubicState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &c.TCPCubicState) - stateSourceObject.Load(1, &c.numCongestionEvents) - stateSourceObject.Load(2, &c.s) -} - -func (q *epQueue) StateTypeName() string { - return "pkg/tcpip/transport/tcp.epQueue" -} - -func (q *epQueue) StateFields() []string { - return []string{ - "list", - } -} - -func (q *epQueue) beforeSave() {} - -// +checklocksignore -func (q *epQueue) StateSave(stateSinkObject state.Sink) { - q.beforeSave() - stateSinkObject.Save(0, &q.list) -} - -func (q *epQueue) afterLoad(context.Context) {} - -// +checklocksignore -func (q *epQueue) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &q.list) -} - -func (p *processor) StateTypeName() string { - return "pkg/tcpip/transport/tcp.processor" -} - -func (p *processor) StateFields() []string { - return []string{ - "epQ", - "sleeper", - } -} - -func (p *processor) beforeSave() {} - -// +checklocksignore -func (p *processor) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - stateSinkObject.Save(0, &p.epQ) - stateSinkObject.Save(1, &p.sleeper) -} - -func (p *processor) afterLoad(context.Context) {} - -// +checklocksignore -func (p *processor) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.epQ) - stateSourceObject.Load(1, &p.sleeper) -} - -func (d *dispatcher) StateTypeName() string { - return "pkg/tcpip/transport/tcp.dispatcher" -} - -func (d *dispatcher) StateFields() []string { - return []string{ - "processors", - "hasher", - "paused", - "closed", - } -} - -func (d *dispatcher) beforeSave() {} - -// +checklocksignore -func (d *dispatcher) StateSave(stateSinkObject state.Sink) { - d.beforeSave() - stateSinkObject.Save(0, &d.processors) - stateSinkObject.Save(1, &d.hasher) - stateSinkObject.Save(2, &d.paused) - stateSinkObject.Save(3, &d.closed) -} - -func (d *dispatcher) afterLoad(context.Context) {} - -// +checklocksignore -func (d *dispatcher) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &d.processors) - stateSourceObject.Load(1, &d.hasher) - stateSourceObject.Load(2, &d.paused) - stateSourceObject.Load(3, &d.closed) -} - -func (j *jenkinsHasher) StateTypeName() string { - return "pkg/tcpip/transport/tcp.jenkinsHasher" -} - -func (j *jenkinsHasher) StateFields() []string { - return []string{ - "seed", - } -} - -func (j *jenkinsHasher) beforeSave() {} - -// +checklocksignore -func (j *jenkinsHasher) StateSave(stateSinkObject state.Sink) { - j.beforeSave() - stateSinkObject.Save(0, &j.seed) -} - -func (j *jenkinsHasher) afterLoad(context.Context) {} - -// +checklocksignore -func (j *jenkinsHasher) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &j.seed) -} - -func (s *SACKInfo) StateTypeName() string { - return "pkg/tcpip/transport/tcp.SACKInfo" -} - -func (s *SACKInfo) StateFields() []string { - return []string{ - "Blocks", - "NumBlocks", - } -} - -func (s *SACKInfo) beforeSave() {} - -// +checklocksignore -func (s *SACKInfo) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.Blocks) - stateSinkObject.Save(1, &s.NumBlocks) -} - -func (s *SACKInfo) afterLoad(context.Context) {} - -// +checklocksignore -func (s *SACKInfo) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.Blocks) - stateSourceObject.Load(1, &s.NumBlocks) -} - -func (r *ReceiveErrors) StateTypeName() string { - return "pkg/tcpip/transport/tcp.ReceiveErrors" -} - -func (r *ReceiveErrors) StateFields() []string { - return []string{ - "ReceiveErrors", - "SegmentQueueDropped", - "ChecksumErrors", - "ListenOverflowSynDrop", - "ListenOverflowAckDrop", - "ZeroRcvWindowState", - "WantZeroRcvWindow", - } -} - -func (r *ReceiveErrors) beforeSave() {} - -// +checklocksignore -func (r *ReceiveErrors) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.ReceiveErrors) - stateSinkObject.Save(1, &r.SegmentQueueDropped) - stateSinkObject.Save(2, &r.ChecksumErrors) - stateSinkObject.Save(3, &r.ListenOverflowSynDrop) - stateSinkObject.Save(4, &r.ListenOverflowAckDrop) - stateSinkObject.Save(5, &r.ZeroRcvWindowState) - stateSinkObject.Save(6, &r.WantZeroRcvWindow) -} - -func (r *ReceiveErrors) afterLoad(context.Context) {} - -// +checklocksignore -func (r *ReceiveErrors) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.ReceiveErrors) - stateSourceObject.Load(1, &r.SegmentQueueDropped) - stateSourceObject.Load(2, &r.ChecksumErrors) - stateSourceObject.Load(3, &r.ListenOverflowSynDrop) - stateSourceObject.Load(4, &r.ListenOverflowAckDrop) - stateSourceObject.Load(5, &r.ZeroRcvWindowState) - stateSourceObject.Load(6, &r.WantZeroRcvWindow) -} - -func (s *SendErrors) StateTypeName() string { - return "pkg/tcpip/transport/tcp.SendErrors" -} - -func (s *SendErrors) StateFields() []string { - return []string{ - "SendErrors", - "SegmentSendToNetworkFailed", - "SynSendToNetworkFailed", - "Retransmits", - "FastRetransmit", - "Timeouts", - } -} - -func (s *SendErrors) beforeSave() {} - -// +checklocksignore -func (s *SendErrors) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.SendErrors) - stateSinkObject.Save(1, &s.SegmentSendToNetworkFailed) - stateSinkObject.Save(2, &s.SynSendToNetworkFailed) - stateSinkObject.Save(3, &s.Retransmits) - stateSinkObject.Save(4, &s.FastRetransmit) - stateSinkObject.Save(5, &s.Timeouts) -} - -func (s *SendErrors) afterLoad(context.Context) {} - -// +checklocksignore -func (s *SendErrors) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.SendErrors) - stateSourceObject.Load(1, &s.SegmentSendToNetworkFailed) - stateSourceObject.Load(2, &s.SynSendToNetworkFailed) - stateSourceObject.Load(3, &s.Retransmits) - stateSourceObject.Load(4, &s.FastRetransmit) - stateSourceObject.Load(5, &s.Timeouts) -} - -func (s *Stats) StateTypeName() string { - return "pkg/tcpip/transport/tcp.Stats" -} - -func (s *Stats) StateFields() []string { - return []string{ - "SegmentsReceived", - "SegmentsSent", - "FailedConnectionAttempts", - "ReceiveErrors", - "ReadErrors", - "SendErrors", - "WriteErrors", - } -} - -func (s *Stats) beforeSave() {} - -// +checklocksignore -func (s *Stats) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.SegmentsReceived) - stateSinkObject.Save(1, &s.SegmentsSent) - stateSinkObject.Save(2, &s.FailedConnectionAttempts) - stateSinkObject.Save(3, &s.ReceiveErrors) - stateSinkObject.Save(4, &s.ReadErrors) - stateSinkObject.Save(5, &s.SendErrors) - stateSinkObject.Save(6, &s.WriteErrors) -} - -func (s *Stats) afterLoad(context.Context) {} - -// +checklocksignore -func (s *Stats) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.SegmentsReceived) - stateSourceObject.Load(1, &s.SegmentsSent) - stateSourceObject.Load(2, &s.FailedConnectionAttempts) - stateSourceObject.Load(3, &s.ReceiveErrors) - stateSourceObject.Load(4, &s.ReadErrors) - stateSourceObject.Load(5, &s.SendErrors) - stateSourceObject.Load(6, &s.WriteErrors) -} - -func (sq *sndQueueInfo) StateTypeName() string { - return "pkg/tcpip/transport/tcp.sndQueueInfo" -} - -func (sq *sndQueueInfo) StateFields() []string { - return []string{ - "TCPSndBufState", - } -} - -func (sq *sndQueueInfo) beforeSave() {} - -// +checklocksignore -func (sq *sndQueueInfo) StateSave(stateSinkObject state.Sink) { - sq.beforeSave() - stateSinkObject.Save(0, &sq.TCPSndBufState) -} - -func (sq *sndQueueInfo) afterLoad(context.Context) {} - -// +checklocksignore -func (sq *sndQueueInfo) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &sq.TCPSndBufState) -} - -func (e *Endpoint) StateTypeName() string { - return "pkg/tcpip/transport/tcp.Endpoint" -} - -func (e *Endpoint) StateFields() []string { - return []string{ - "TCPEndpointStateInner", - "TransportEndpointInfo", - "DefaultSocketOptionsHandler", - "waiterQueue", - "hardError", - "lastError", - "TCPRcvBufState", - "rcvMemUsed", - "ownedByUser", - "rcvQueue", - "state", - "connectionDirectionState", - "boundNICID", - "ipv4TTL", - "ipv6HopLimit", - "isConnectNotified", - "h", - "portFlags", - "boundBindToDevice", - "boundPortFlags", - "boundDest", - "effectiveNetProtos", - "recentTSTime", - "shutdownFlags", - "tcpRecovery", - "sack", - "delay", - "scoreboard", - "segmentQueue", - "userMSS", - "maxSynRetries", - "windowClamp", - "sndQueueInfo", - "cc", - "keepalive", - "userTimeout", - "deferAccept", - "acceptQueue", - "rcv", - "snd", - "connectingAddress", - "amss", - "sendTOS", - "gso", - "stats", - "tcpLingerTimeout", - "closed", - "txHash", - "owner", - "ops", - "lastOutOfWindowAckTime", - "pmtud", - } -} - -// +checklocksignore -func (e *Endpoint) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - var stateValue EndpointState - stateValue = e.saveState() - stateSinkObject.SaveValue(10, stateValue) - stateSinkObject.Save(0, &e.TCPEndpointStateInner) - stateSinkObject.Save(1, &e.TransportEndpointInfo) - stateSinkObject.Save(2, &e.DefaultSocketOptionsHandler) - stateSinkObject.Save(3, &e.waiterQueue) - stateSinkObject.Save(4, &e.hardError) - stateSinkObject.Save(5, &e.lastError) - stateSinkObject.Save(6, &e.TCPRcvBufState) - stateSinkObject.Save(7, &e.rcvMemUsed) - stateSinkObject.Save(8, &e.ownedByUser) - stateSinkObject.Save(9, &e.rcvQueue) - stateSinkObject.Save(11, &e.connectionDirectionState) - stateSinkObject.Save(12, &e.boundNICID) - stateSinkObject.Save(13, &e.ipv4TTL) - stateSinkObject.Save(14, &e.ipv6HopLimit) - stateSinkObject.Save(15, &e.isConnectNotified) - stateSinkObject.Save(16, &e.h) - stateSinkObject.Save(17, &e.portFlags) - stateSinkObject.Save(18, &e.boundBindToDevice) - stateSinkObject.Save(19, &e.boundPortFlags) - stateSinkObject.Save(20, &e.boundDest) - stateSinkObject.Save(21, &e.effectiveNetProtos) - stateSinkObject.Save(22, &e.recentTSTime) - stateSinkObject.Save(23, &e.shutdownFlags) - stateSinkObject.Save(24, &e.tcpRecovery) - stateSinkObject.Save(25, &e.sack) - stateSinkObject.Save(26, &e.delay) - stateSinkObject.Save(27, &e.scoreboard) - stateSinkObject.Save(28, &e.segmentQueue) - stateSinkObject.Save(29, &e.userMSS) - stateSinkObject.Save(30, &e.maxSynRetries) - stateSinkObject.Save(31, &e.windowClamp) - stateSinkObject.Save(32, &e.sndQueueInfo) - stateSinkObject.Save(33, &e.cc) - stateSinkObject.Save(34, &e.keepalive) - stateSinkObject.Save(35, &e.userTimeout) - stateSinkObject.Save(36, &e.deferAccept) - stateSinkObject.Save(37, &e.acceptQueue) - stateSinkObject.Save(38, &e.rcv) - stateSinkObject.Save(39, &e.snd) - stateSinkObject.Save(40, &e.connectingAddress) - stateSinkObject.Save(41, &e.amss) - stateSinkObject.Save(42, &e.sendTOS) - stateSinkObject.Save(43, &e.gso) - stateSinkObject.Save(44, &e.stats) - stateSinkObject.Save(45, &e.tcpLingerTimeout) - stateSinkObject.Save(46, &e.closed) - stateSinkObject.Save(47, &e.txHash) - stateSinkObject.Save(48, &e.owner) - stateSinkObject.Save(49, &e.ops) - stateSinkObject.Save(50, &e.lastOutOfWindowAckTime) - stateSinkObject.Save(51, &e.pmtud) -} - -// +checklocksignore -func (e *Endpoint) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.TCPEndpointStateInner) - stateSourceObject.Load(1, &e.TransportEndpointInfo) - stateSourceObject.Load(2, &e.DefaultSocketOptionsHandler) - stateSourceObject.LoadWait(3, &e.waiterQueue) - stateSourceObject.Load(4, &e.hardError) - stateSourceObject.Load(5, &e.lastError) - stateSourceObject.Load(6, &e.TCPRcvBufState) - stateSourceObject.Load(7, &e.rcvMemUsed) - stateSourceObject.Load(8, &e.ownedByUser) - stateSourceObject.LoadWait(9, &e.rcvQueue) - stateSourceObject.Load(11, &e.connectionDirectionState) - stateSourceObject.Load(12, &e.boundNICID) - stateSourceObject.Load(13, &e.ipv4TTL) - stateSourceObject.Load(14, &e.ipv6HopLimit) - stateSourceObject.Load(15, &e.isConnectNotified) - stateSourceObject.Load(16, &e.h) - stateSourceObject.Load(17, &e.portFlags) - stateSourceObject.Load(18, &e.boundBindToDevice) - stateSourceObject.Load(19, &e.boundPortFlags) - stateSourceObject.Load(20, &e.boundDest) - stateSourceObject.Load(21, &e.effectiveNetProtos) - stateSourceObject.Load(22, &e.recentTSTime) - stateSourceObject.Load(23, &e.shutdownFlags) - stateSourceObject.Load(24, &e.tcpRecovery) - stateSourceObject.Load(25, &e.sack) - stateSourceObject.Load(26, &e.delay) - stateSourceObject.Load(27, &e.scoreboard) - stateSourceObject.LoadWait(28, &e.segmentQueue) - stateSourceObject.Load(29, &e.userMSS) - stateSourceObject.Load(30, &e.maxSynRetries) - stateSourceObject.Load(31, &e.windowClamp) - stateSourceObject.Load(32, &e.sndQueueInfo) - stateSourceObject.Load(33, &e.cc) - stateSourceObject.Load(34, &e.keepalive) - stateSourceObject.Load(35, &e.userTimeout) - stateSourceObject.Load(36, &e.deferAccept) - stateSourceObject.Load(37, &e.acceptQueue) - stateSourceObject.LoadWait(38, &e.rcv) - stateSourceObject.LoadWait(39, &e.snd) - stateSourceObject.Load(40, &e.connectingAddress) - stateSourceObject.Load(41, &e.amss) - stateSourceObject.Load(42, &e.sendTOS) - stateSourceObject.Load(43, &e.gso) - stateSourceObject.Load(44, &e.stats) - stateSourceObject.Load(45, &e.tcpLingerTimeout) - stateSourceObject.Load(46, &e.closed) - stateSourceObject.Load(47, &e.txHash) - stateSourceObject.Load(48, &e.owner) - stateSourceObject.Load(49, &e.ops) - stateSourceObject.Load(50, &e.lastOutOfWindowAckTime) - stateSourceObject.Load(51, &e.pmtud) - stateSourceObject.LoadValue(10, new(EndpointState), func(y any) { e.loadState(ctx, y.(EndpointState)) }) - stateSourceObject.AfterLoad(func() { e.afterLoad(ctx) }) -} - -func (k *keepalive) StateTypeName() string { - return "pkg/tcpip/transport/tcp.keepalive" -} - -func (k *keepalive) StateFields() []string { - return []string{ - "idle", - "interval", - "count", - "unacked", - } -} - -func (k *keepalive) beforeSave() {} - -// +checklocksignore -func (k *keepalive) StateSave(stateSinkObject state.Sink) { - k.beforeSave() - stateSinkObject.Save(0, &k.idle) - stateSinkObject.Save(1, &k.interval) - stateSinkObject.Save(2, &k.count) - stateSinkObject.Save(3, &k.unacked) -} - -func (k *keepalive) afterLoad(context.Context) {} - -// +checklocksignore -func (k *keepalive) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &k.idle) - stateSourceObject.Load(1, &k.interval) - stateSourceObject.Load(2, &k.count) - stateSourceObject.Load(3, &k.unacked) -} - -func (p *protocol) StateTypeName() string { - return "pkg/tcpip/transport/tcp.protocol" -} - -func (p *protocol) StateFields() []string { - return []string{ - "stack", - "sackEnabled", - "recovery", - "delayEnabled", - "alwaysUseSynCookies", - "sendBufferSize", - "recvBufferSize", - "congestionControl", - "availableCongestionControl", - "moderateReceiveBuffer", - "lingerTimeout", - "timeWaitTimeout", - "timeWaitReuse", - "minRTO", - "maxRTO", - "maxRetries", - "synRetries", - "dispatcher", - "seqnumSecret", - "tsOffsetSecret", - } -} - -func (p *protocol) beforeSave() {} - -// +checklocksignore -func (p *protocol) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - stateSinkObject.Save(0, &p.stack) - stateSinkObject.Save(1, &p.sackEnabled) - stateSinkObject.Save(2, &p.recovery) - stateSinkObject.Save(3, &p.delayEnabled) - stateSinkObject.Save(4, &p.alwaysUseSynCookies) - stateSinkObject.Save(5, &p.sendBufferSize) - stateSinkObject.Save(6, &p.recvBufferSize) - stateSinkObject.Save(7, &p.congestionControl) - stateSinkObject.Save(8, &p.availableCongestionControl) - stateSinkObject.Save(9, &p.moderateReceiveBuffer) - stateSinkObject.Save(10, &p.lingerTimeout) - stateSinkObject.Save(11, &p.timeWaitTimeout) - stateSinkObject.Save(12, &p.timeWaitReuse) - stateSinkObject.Save(13, &p.minRTO) - stateSinkObject.Save(14, &p.maxRTO) - stateSinkObject.Save(15, &p.maxRetries) - stateSinkObject.Save(16, &p.synRetries) - stateSinkObject.Save(17, &p.dispatcher) - stateSinkObject.Save(18, &p.seqnumSecret) - stateSinkObject.Save(19, &p.tsOffsetSecret) -} - -func (p *protocol) afterLoad(context.Context) {} - -// +checklocksignore -func (p *protocol) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.stack) - stateSourceObject.Load(1, &p.sackEnabled) - stateSourceObject.Load(2, &p.recovery) - stateSourceObject.Load(3, &p.delayEnabled) - stateSourceObject.Load(4, &p.alwaysUseSynCookies) - stateSourceObject.Load(5, &p.sendBufferSize) - stateSourceObject.Load(6, &p.recvBufferSize) - stateSourceObject.Load(7, &p.congestionControl) - stateSourceObject.Load(8, &p.availableCongestionControl) - stateSourceObject.Load(9, &p.moderateReceiveBuffer) - stateSourceObject.Load(10, &p.lingerTimeout) - stateSourceObject.Load(11, &p.timeWaitTimeout) - stateSourceObject.Load(12, &p.timeWaitReuse) - stateSourceObject.Load(13, &p.minRTO) - stateSourceObject.Load(14, &p.maxRTO) - stateSourceObject.Load(15, &p.maxRetries) - stateSourceObject.Load(16, &p.synRetries) - stateSourceObject.Load(17, &p.dispatcher) - stateSourceObject.Load(18, &p.seqnumSecret) - stateSourceObject.Load(19, &p.tsOffsetSecret) -} - -func (rc *rackControl) StateTypeName() string { - return "pkg/tcpip/transport/tcp.rackControl" -} - -func (rc *rackControl) StateFields() []string { - return []string{ - "TCPRACKState", - "exitedRecovery", - "minRTT", - "tlpRxtOut", - "tlpHighRxt", - "snd", - } -} - -func (rc *rackControl) beforeSave() {} - -// +checklocksignore -func (rc *rackControl) StateSave(stateSinkObject state.Sink) { - rc.beforeSave() - stateSinkObject.Save(0, &rc.TCPRACKState) - stateSinkObject.Save(1, &rc.exitedRecovery) - stateSinkObject.Save(2, &rc.minRTT) - stateSinkObject.Save(3, &rc.tlpRxtOut) - stateSinkObject.Save(4, &rc.tlpHighRxt) - stateSinkObject.Save(5, &rc.snd) -} - -func (rc *rackControl) afterLoad(context.Context) {} - -// +checklocksignore -func (rc *rackControl) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &rc.TCPRACKState) - stateSourceObject.Load(1, &rc.exitedRecovery) - stateSourceObject.Load(2, &rc.minRTT) - stateSourceObject.Load(3, &rc.tlpRxtOut) - stateSourceObject.Load(4, &rc.tlpHighRxt) - stateSourceObject.Load(5, &rc.snd) -} - -func (r *receiver) StateTypeName() string { - return "pkg/tcpip/transport/tcp.receiver" -} - -func (r *receiver) StateFields() []string { - return []string{ - "TCPReceiverState", - "ep", - "rcvWnd", - "rcvWUP", - "prevBufUsed", - "closed", - "pendingRcvdSegments", - "lastRcvdAckTime", - } -} - -func (r *receiver) beforeSave() {} - -// +checklocksignore -func (r *receiver) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.TCPReceiverState) - stateSinkObject.Save(1, &r.ep) - stateSinkObject.Save(2, &r.rcvWnd) - stateSinkObject.Save(3, &r.rcvWUP) - stateSinkObject.Save(4, &r.prevBufUsed) - stateSinkObject.Save(5, &r.closed) - stateSinkObject.Save(6, &r.pendingRcvdSegments) - stateSinkObject.Save(7, &r.lastRcvdAckTime) -} - -func (r *receiver) afterLoad(context.Context) {} - -// +checklocksignore -func (r *receiver) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.TCPReceiverState) - stateSourceObject.Load(1, &r.ep) - stateSourceObject.Load(2, &r.rcvWnd) - stateSourceObject.Load(3, &r.rcvWUP) - stateSourceObject.Load(4, &r.prevBufUsed) - stateSourceObject.Load(5, &r.closed) - stateSourceObject.Load(6, &r.pendingRcvdSegments) - stateSourceObject.Load(7, &r.lastRcvdAckTime) -} - -func (r *renoState) StateTypeName() string { - return "pkg/tcpip/transport/tcp.renoState" -} - -func (r *renoState) StateFields() []string { - return []string{ - "s", - } -} - -func (r *renoState) beforeSave() {} - -// +checklocksignore -func (r *renoState) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.s) -} - -func (r *renoState) afterLoad(context.Context) {} - -// +checklocksignore -func (r *renoState) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.s) -} - -func (rr *renoRecovery) StateTypeName() string { - return "pkg/tcpip/transport/tcp.renoRecovery" -} - -func (rr *renoRecovery) StateFields() []string { - return []string{ - "s", - } -} - -func (rr *renoRecovery) beforeSave() {} - -// +checklocksignore -func (rr *renoRecovery) StateSave(stateSinkObject state.Sink) { - rr.beforeSave() - stateSinkObject.Save(0, &rr.s) -} - -func (rr *renoRecovery) afterLoad(context.Context) {} - -// +checklocksignore -func (rr *renoRecovery) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &rr.s) -} - -func (sr *sackRecovery) StateTypeName() string { - return "pkg/tcpip/transport/tcp.sackRecovery" -} - -func (sr *sackRecovery) StateFields() []string { - return []string{ - "s", - } -} - -func (sr *sackRecovery) beforeSave() {} - -// +checklocksignore -func (sr *sackRecovery) StateSave(stateSinkObject state.Sink) { - sr.beforeSave() - stateSinkObject.Save(0, &sr.s) -} - -func (sr *sackRecovery) afterLoad(context.Context) {} - -// +checklocksignore -func (sr *sackRecovery) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &sr.s) -} - -func (s *SACKScoreboard) StateTypeName() string { - return "pkg/tcpip/transport/tcp.SACKScoreboard" -} - -func (s *SACKScoreboard) StateFields() []string { - return []string{ - "smss", - "maxSACKED", - } -} - -func (s *SACKScoreboard) beforeSave() {} - -// +checklocksignore -func (s *SACKScoreboard) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.smss) - stateSinkObject.Save(1, &s.maxSACKED) -} - -func (s *SACKScoreboard) afterLoad(context.Context) {} - -// +checklocksignore -func (s *SACKScoreboard) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.smss) - stateSourceObject.Load(1, &s.maxSACKED) -} - -func (s *segment) StateTypeName() string { - return "pkg/tcpip/transport/tcp.segment" -} - -func (s *segment) StateFields() []string { - return []string{ - "segmentEntry", - "segmentRefs", - "ep", - "qFlags", - "pkt", - "sequenceNumber", - "ackNumber", - "flags", - "window", - "csum", - "csumValid", - "parsedOptions", - "options", - "hasNewSACKInfo", - "rcvdTime", - "xmitTime", - "xmitCount", - "acked", - "dataMemSize", - "lost", - } -} - -func (s *segment) beforeSave() {} - -// +checklocksignore -func (s *segment) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - var optionsValue []byte - optionsValue = s.saveOptions() - stateSinkObject.SaveValue(12, optionsValue) - stateSinkObject.Save(0, &s.segmentEntry) - stateSinkObject.Save(1, &s.segmentRefs) - stateSinkObject.Save(2, &s.ep) - stateSinkObject.Save(3, &s.qFlags) - stateSinkObject.Save(4, &s.pkt) - stateSinkObject.Save(5, &s.sequenceNumber) - stateSinkObject.Save(6, &s.ackNumber) - stateSinkObject.Save(7, &s.flags) - stateSinkObject.Save(8, &s.window) - stateSinkObject.Save(9, &s.csum) - stateSinkObject.Save(10, &s.csumValid) - stateSinkObject.Save(11, &s.parsedOptions) - stateSinkObject.Save(13, &s.hasNewSACKInfo) - stateSinkObject.Save(14, &s.rcvdTime) - stateSinkObject.Save(15, &s.xmitTime) - stateSinkObject.Save(16, &s.xmitCount) - stateSinkObject.Save(17, &s.acked) - stateSinkObject.Save(18, &s.dataMemSize) - stateSinkObject.Save(19, &s.lost) -} - -func (s *segment) afterLoad(context.Context) {} - -// +checklocksignore -func (s *segment) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.segmentEntry) - stateSourceObject.Load(1, &s.segmentRefs) - stateSourceObject.Load(2, &s.ep) - stateSourceObject.Load(3, &s.qFlags) - stateSourceObject.Load(4, &s.pkt) - stateSourceObject.Load(5, &s.sequenceNumber) - stateSourceObject.Load(6, &s.ackNumber) - stateSourceObject.Load(7, &s.flags) - stateSourceObject.Load(8, &s.window) - stateSourceObject.Load(9, &s.csum) - stateSourceObject.Load(10, &s.csumValid) - stateSourceObject.Load(11, &s.parsedOptions) - stateSourceObject.Load(13, &s.hasNewSACKInfo) - stateSourceObject.Load(14, &s.rcvdTime) - stateSourceObject.Load(15, &s.xmitTime) - stateSourceObject.Load(16, &s.xmitCount) - stateSourceObject.Load(17, &s.acked) - stateSourceObject.Load(18, &s.dataMemSize) - stateSourceObject.Load(19, &s.lost) - stateSourceObject.LoadValue(12, new([]byte), func(y any) { s.loadOptions(ctx, y.([]byte)) }) -} - -func (q *segmentQueue) StateTypeName() string { - return "pkg/tcpip/transport/tcp.segmentQueue" -} - -func (q *segmentQueue) StateFields() []string { - return []string{ - "list", - "ep", - "frozen", - } -} - -func (q *segmentQueue) beforeSave() {} - -// +checklocksignore -func (q *segmentQueue) StateSave(stateSinkObject state.Sink) { - q.beforeSave() - stateSinkObject.Save(0, &q.list) - stateSinkObject.Save(1, &q.ep) - stateSinkObject.Save(2, &q.frozen) -} - -func (q *segmentQueue) afterLoad(context.Context) {} - -// +checklocksignore -func (q *segmentQueue) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.LoadWait(0, &q.list) - stateSourceObject.Load(1, &q.ep) - stateSourceObject.Load(2, &q.frozen) -} - -func (s *sender) StateTypeName() string { - return "pkg/tcpip/transport/tcp.sender" -} - -func (s *sender) StateFields() []string { - return []string{ - "TCPSenderState", - "ep", - "lr", - "firstRetransmittedSegXmitTime", - "writeNext", - "writeList", - "rtt", - "minRTO", - "maxRTO", - "maxRetries", - "gso", - "state", - "cc", - "rc", - "spuriousRecovery", - "retransmitTS", - "startCork", - } -} - -func (s *sender) beforeSave() {} - -// +checklocksignore -func (s *sender) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.TCPSenderState) - stateSinkObject.Save(1, &s.ep) - stateSinkObject.Save(2, &s.lr) - stateSinkObject.Save(3, &s.firstRetransmittedSegXmitTime) - stateSinkObject.Save(4, &s.writeNext) - stateSinkObject.Save(5, &s.writeList) - stateSinkObject.Save(6, &s.rtt) - stateSinkObject.Save(7, &s.minRTO) - stateSinkObject.Save(8, &s.maxRTO) - stateSinkObject.Save(9, &s.maxRetries) - stateSinkObject.Save(10, &s.gso) - stateSinkObject.Save(11, &s.state) - stateSinkObject.Save(12, &s.cc) - stateSinkObject.Save(13, &s.rc) - stateSinkObject.Save(14, &s.spuriousRecovery) - stateSinkObject.Save(15, &s.retransmitTS) - stateSinkObject.Save(16, &s.startCork) -} - -func (s *sender) afterLoad(context.Context) {} - -// +checklocksignore -func (s *sender) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.TCPSenderState) - stateSourceObject.Load(1, &s.ep) - stateSourceObject.Load(2, &s.lr) - stateSourceObject.Load(3, &s.firstRetransmittedSegXmitTime) - stateSourceObject.Load(4, &s.writeNext) - stateSourceObject.Load(5, &s.writeList) - stateSourceObject.Load(6, &s.rtt) - stateSourceObject.Load(7, &s.minRTO) - stateSourceObject.Load(8, &s.maxRTO) - stateSourceObject.Load(9, &s.maxRetries) - stateSourceObject.Load(10, &s.gso) - stateSourceObject.Load(11, &s.state) - stateSourceObject.Load(12, &s.cc) - stateSourceObject.Load(13, &s.rc) - stateSourceObject.Load(14, &s.spuriousRecovery) - stateSourceObject.Load(15, &s.retransmitTS) - stateSourceObject.Load(16, &s.startCork) -} - -func (r *rtt) StateTypeName() string { - return "pkg/tcpip/transport/tcp.rtt" -} - -func (r *rtt) StateFields() []string { - return []string{ - "TCPRTTState", - } -} - -func (r *rtt) beforeSave() {} - -// +checklocksignore -func (r *rtt) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.TCPRTTState) -} - -func (r *rtt) afterLoad(context.Context) {} - -// +checklocksignore -func (r *rtt) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.TCPRTTState) -} - -func (l *endpointList) StateTypeName() string { - return "pkg/tcpip/transport/tcp.endpointList" -} - -func (l *endpointList) StateFields() []string { - return []string{ - "head", - "tail", - } -} - -func (l *endpointList) beforeSave() {} - -// +checklocksignore -func (l *endpointList) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.head) - stateSinkObject.Save(1, &l.tail) -} - -func (l *endpointList) afterLoad(context.Context) {} - -// +checklocksignore -func (l *endpointList) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.head) - stateSourceObject.Load(1, &l.tail) -} - -func (e *endpointEntry) StateTypeName() string { - return "pkg/tcpip/transport/tcp.endpointEntry" -} - -func (e *endpointEntry) StateFields() []string { - return []string{ - "next", - "prev", - } -} - -func (e *endpointEntry) beforeSave() {} - -// +checklocksignore -func (e *endpointEntry) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.next) - stateSinkObject.Save(1, &e.prev) -} - -func (e *endpointEntry) afterLoad(context.Context) {} - -// +checklocksignore -func (e *endpointEntry) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.next) - stateSourceObject.Load(1, &e.prev) -} - -func (l *segmentList) StateTypeName() string { - return "pkg/tcpip/transport/tcp.segmentList" -} - -func (l *segmentList) StateFields() []string { - return []string{ - "head", - "tail", - } -} - -func (l *segmentList) beforeSave() {} - -// +checklocksignore -func (l *segmentList) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.head) - stateSinkObject.Save(1, &l.tail) -} - -func (l *segmentList) afterLoad(context.Context) {} - -// +checklocksignore -func (l *segmentList) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.head) - stateSourceObject.Load(1, &l.tail) -} - -func (e *segmentEntry) StateTypeName() string { - return "pkg/tcpip/transport/tcp.segmentEntry" -} - -func (e *segmentEntry) StateFields() []string { - return []string{ - "next", - "prev", - } -} - -func (e *segmentEntry) beforeSave() {} - -// +checklocksignore -func (e *segmentEntry) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.next) - stateSinkObject.Save(1, &e.prev) -} - -func (e *segmentEntry) afterLoad(context.Context) {} - -// +checklocksignore -func (e *segmentEntry) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.next) - stateSourceObject.Load(1, &e.prev) -} - -func (r *segmentRefs) StateTypeName() string { - return "pkg/tcpip/transport/tcp.segmentRefs" -} - -func (r *segmentRefs) StateFields() []string { - return []string{ - "refCount", - } -} - -func (r *segmentRefs) beforeSave() {} - -// +checklocksignore -func (r *segmentRefs) StateSave(stateSinkObject state.Sink) { - r.beforeSave() - stateSinkObject.Save(0, &r.refCount) -} - -// +checklocksignore -func (r *segmentRefs) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &r.refCount) - stateSourceObject.AfterLoad(func() { r.afterLoad(ctx) }) -} - -func init() { - state.Register((*acceptQueue)(nil)) - state.Register((*handshake)(nil)) - state.Register((*cubicState)(nil)) - state.Register((*epQueue)(nil)) - state.Register((*processor)(nil)) - state.Register((*dispatcher)(nil)) - state.Register((*jenkinsHasher)(nil)) - state.Register((*SACKInfo)(nil)) - state.Register((*ReceiveErrors)(nil)) - state.Register((*SendErrors)(nil)) - state.Register((*Stats)(nil)) - state.Register((*sndQueueInfo)(nil)) - state.Register((*Endpoint)(nil)) - state.Register((*keepalive)(nil)) - state.Register((*protocol)(nil)) - state.Register((*rackControl)(nil)) - state.Register((*receiver)(nil)) - state.Register((*renoState)(nil)) - state.Register((*renoRecovery)(nil)) - state.Register((*sackRecovery)(nil)) - state.Register((*SACKScoreboard)(nil)) - state.Register((*segment)(nil)) - state.Register((*segmentQueue)(nil)) - state.Register((*sender)(nil)) - state.Register((*rtt)(nil)) - state.Register((*endpointList)(nil)) - state.Register((*endpointEntry)(nil)) - state.Register((*segmentList)(nil)) - state.Register((*segmentEntry)(nil)) - state.Register((*segmentRefs)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/tcp_unsafe_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/tcp_unsafe_state_autogen.go deleted file mode 100644 index 4cb82fcc9c..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/tcp_unsafe_state_autogen.go +++ /dev/null @@ -1,3 +0,0 @@ -// automatically generated by stateify. - -package tcp diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/timer.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/timer.go deleted file mode 100644 index 7111789d5c..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcp/timer.go +++ /dev/null @@ -1,160 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcp - -import ( - "time" - - "gvisor.dev/gvisor/pkg/tcpip" -) - -type timerState int - -const ( - // The timer has not been initialized yet or has been cleaned up. - timerUninitialized timerState = iota - // The timer is disabled. - timerStateDisabled - // The timer is enabled, but the clock timer may be set to an earlier - // expiration time due to a previous orphaned state. - timerStateEnabled - // The timer is disabled, but the clock timer is enabled, which means that - // it will cause a spurious wakeup unless the timer is enabled before the - // clock timer fires. - timerStateOrphaned -) - -// timer is a timer implementation that reduces the interactions with the -// clock timer infrastructure by letting timers run (and potentially -// eventually expire) even if they are stopped. It makes it cheaper to -// disable/reenable timers at the expense of spurious wakes. This is useful for -// cases when the same timer is disabled/reenabled repeatedly with relatively -// long timeouts farther into the future. -// -// TCP retransmit timers benefit from this because they the timeouts are long -// (currently at least 200ms), and get disabled when acks are received, and -// reenabled when new pending segments are sent. -// -// It is advantageous to avoid interacting with the clock because it acquires -// a global mutex and performs O(log n) operations, where n is the global number -// of timers, whenever a timer is enabled or disabled, and may make a syscall. -// -// This struct is thread-compatible. -type timer struct { - state timerState - - clock tcpip.Clock - - // target is the expiration time of the current timer. It is only - // meaningful in the enabled state. - target tcpip.MonotonicTime - - // clockTarget is the expiration time of the clock timer. It is - // meaningful in the enabled and orphaned states. - clockTarget tcpip.MonotonicTime - - // timer is the clock timer used to wait on. - timer tcpip.Timer - - // callback is the function that's called when the timer expires. - callback func() -} - -// init initializes the timer. Once it expires the function callback -// passed will be called. -func (t *timer) init(clock tcpip.Clock, f func()) { - t.state = timerStateDisabled - t.clock = clock - t.callback = f -} - -// cleanup frees all resources associated with the timer. -func (t *timer) cleanup() { - if t.timer == nil { - // No cleanup needed. - return - } - t.timer.Stop() - *t = timer{} -} - -// isUninitialized returns true if the timer is in the uninitialized state. This -// is only true if init() has never been called or if cleanup has been called. -func (t *timer) isUninitialized() bool { - return t.state == timerUninitialized -} - -// checkExpiration checks if the given timer has actually expired, it should be -// called whenever the callback function is called, and is used to check if it's -// a spurious timer expiration (due to a previously orphaned timer) or a -// legitimate one. -func (t *timer) checkExpiration() bool { - // Transition to fully disabled state if we're just consuming an - // orphaned timer. - if t.state == timerStateOrphaned { - t.state = timerStateDisabled - return false - } - - // The timer is enabled, but it may have expired early. Check if that's - // the case, and if so, reset the runtime timer to the correct time. - now := t.clock.NowMonotonic() - if now.Before(t.target) { - t.clockTarget = t.target - t.timer.Reset(t.target.Sub(now)) - return false - } - - // The timer has actually expired, disable it for now and inform the - // caller. - t.state = timerStateDisabled - return true -} - -// disable disables the timer, leaving it in an orphaned state if it wasn't -// already disabled. -func (t *timer) disable() { - if t.state != timerStateDisabled { - t.state = timerStateOrphaned - } -} - -// enabled returns true if the timer is currently enabled, false otherwise. -func (t *timer) enabled() bool { - return t.state == timerStateEnabled -} - -// enable enables the timer, programming the runtime timer if necessary. -func (t *timer) enable(d time.Duration) { - t.target = t.clock.NowMonotonic().Add(d) - - // Check if we need to set the runtime timer. - if t.state == timerStateDisabled || t.target.Before(t.clockTarget) { - t.clockTarget = t.target - t.resetOrStart(d) - } - - t.state = timerStateEnabled -} - -// resetOrStart creates the timer if it doesn't already exist or resets it with -// the given duration if it does. -func (t *timer) resetOrStart(d time.Duration) { - if t.timer == nil { - t.timer = t.clock.AfterFunc(d, t.callback) - } else { - t.timer.Reset(d) - } -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcpconntrack/tcp_conntrack.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcpconntrack/tcp_conntrack.go deleted file mode 100644 index 4d74a6dd8c..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcpconntrack/tcp_conntrack.go +++ /dev/null @@ -1,417 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package tcpconntrack implements a TCP connection tracking object. It allows -// users with access to a segment stream to figure out when a connection is -// established, reset, and closed (and in the last case, who closed first). -package tcpconntrack - -import ( - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/seqnum" -) - -// Result is returned when the state of a TCB is updated in response to a -// segment. -type Result int - -const ( - // ResultDrop indicates that the segment should be dropped. - ResultDrop Result = iota - - // ResultConnecting indicates that the connection remains in a - // connecting state. - ResultConnecting - - // ResultAlive indicates that the connection remains alive (connected). - ResultAlive - - // ResultReset indicates that the connection was reset. - ResultReset - - // ResultClosedByResponder indicates that the connection was gracefully - // closed, and the reply stream was closed first. - ResultClosedByResponder - - // ResultClosedByOriginator indicates that the connection was gracefully - // closed, and the original stream was closed first. - ResultClosedByOriginator -) - -// maxWindowShift is the maximum shift value of the per the windows scale -// option defined by RFC 1323. -const maxWindowShift = 14 - -// TCB is a TCP Control Block. It holds state necessary to keep track of a TCP -// connection and inform the caller when the connection has been closed. -// -// +stateify savable -type TCB struct { - reply stream - original stream - - // State handlers. hdr is not guaranteed to contain bytes beyond the TCP - // header itself, i.e. it may not contain the payload. - // TODO(b/341946753): Restore them when netstack is savable. - handlerReply func(tcb *TCB, hdr header.TCP, dataLen int) Result `state:"nosave"` - handlerOriginal func(tcb *TCB, hdr header.TCP, dataLen int) Result `state:"nosave"` - - // firstFin holds a pointer to the first stream to send a FIN. - firstFin *stream - - // state is the current state of the stream. - state Result -} - -// Init initializes the state of the TCB according to the initial SYN. -func (t *TCB) Init(initialSyn header.TCP, dataLen int) Result { - t.handlerReply = synSentStateReply - t.handlerOriginal = synSentStateOriginal - - iss := seqnum.Value(initialSyn.SequenceNumber()) - t.original.una = iss - t.original.nxt = iss.Add(logicalLenSyn(initialSyn, dataLen)) - t.original.end = t.original.nxt - // TODO(gvisor.dev/issue/6734): Cache TCP options instead of re-parsing them. - // Because original and reply are streams, scale applies to the reply; it is - // the receive window in the reply direction. - t.reply.shiftCnt = header.ParseSynOptions(initialSyn.Options(), false /* isAck */).WS - - // Even though "end" is a sequence number, we don't know the initial - // receive sequence number yet, so we store the window size until we get - // a SYN from the server. - t.reply.una = 0 - t.reply.nxt = 0 - t.reply.end = seqnum.Value(initialSyn.WindowSize()) - t.state = ResultConnecting - return t.state -} - -// UpdateStateReply updates the state of the TCB based on the supplied reply -// segment. -func (t *TCB) UpdateStateReply(tcp header.TCP, dataLen int) Result { - st := t.handlerReply(t, tcp, dataLen) - if st != ResultDrop { - t.state = st - } - return st -} - -// UpdateStateOriginal updates the state of the TCB based on the supplied -// original segment. -func (t *TCB) UpdateStateOriginal(tcp header.TCP, dataLen int) Result { - st := t.handlerOriginal(t, tcp, dataLen) - if st != ResultDrop { - t.state = st - } - return st -} - -// State returns the current state of the TCB. -func (t *TCB) State() Result { - return t.state -} - -// IsAlive returns true as long as the connection is established(Alive) -// or connecting state. -func (t *TCB) IsAlive() bool { - return !t.reply.rstSeen && !t.original.rstSeen && (!t.reply.closed() || !t.original.closed()) -} - -// OriginalSendSequenceNumber returns the snd.NXT for the original stream. -func (t *TCB) OriginalSendSequenceNumber() seqnum.Value { - return t.original.nxt -} - -// ReplySendSequenceNumber returns the snd.NXT for the reply stream. -func (t *TCB) ReplySendSequenceNumber() seqnum.Value { - return t.reply.nxt -} - -// adapResult modifies the supplied "Result" according to the state of the TCB; -// if r is anything other than "Alive", or if one of the streams isn't closed -// yet, it is returned unmodified. Otherwise it's converted to either -// ClosedByOriginator or ClosedByResponder depending on which stream was closed -// first. -func (t *TCB) adaptResult(r Result) Result { - // Check the unmodified case. - if r != ResultAlive || !t.reply.closed() || !t.original.closed() { - return r - } - - // Find out which was closed first. - if t.firstFin == &t.original { - return ResultClosedByOriginator - } - - return ResultClosedByResponder -} - -// synSentStateReply is the state handler for reply segments when the -// connection is in SYN-SENT state. -func synSentStateReply(t *TCB, tcp header.TCP, dataLen int) Result { - flags := tcp.Flags() - ackPresent := flags&header.TCPFlagAck != 0 - ack := seqnum.Value(tcp.AckNumber()) - - // Ignore segment if ack is present but not acceptable. - if ackPresent && !(ack-1).InRange(t.original.una, t.original.nxt) { - return ResultConnecting - } - - // If reset is specified, we will let the packet through no matter what - // but we will also destroy the connection if the ACK is present (and - // implicitly acceptable). - if flags&header.TCPFlagRst != 0 { - if ackPresent { - t.reply.rstSeen = true - return ResultReset - } - return ResultConnecting - } - - // Ignore segment if SYN is not set. - if flags&header.TCPFlagSyn == 0 { - return ResultConnecting - } - - // TODO(gvisor.dev/issue/6734): Cache TCP options instead of re-parsing them. - // Because original and reply are streams, scale applies to the reply; it is - // the receive window in the original direction. - t.original.shiftCnt = header.ParseSynOptions(tcp.Options(), ackPresent).WS - - // Window scaling works only when both ends use the scale option. - if t.original.shiftCnt != -1 && t.reply.shiftCnt != -1 { - // Per RFC 1323 section 2.3: - // - // "If a Window Scale option is received with a shift.cnt value exceeding - // 14, the TCP should log the error but use 14 instead of the specified - // value." - if t.original.shiftCnt > maxWindowShift { - t.original.shiftCnt = maxWindowShift - } - if t.reply.shiftCnt > maxWindowShift { - t.original.shiftCnt = maxWindowShift - } - } else { - t.original.shiftCnt = 0 - t.reply.shiftCnt = 0 - } - // Update state informed by this SYN. - irs := seqnum.Value(tcp.SequenceNumber()) - t.reply.una = irs - t.reply.nxt = irs.Add(logicalLen(tcp, dataLen, seqnum.Size(t.reply.end) /* end currently holds the receive window size */)) - t.reply.end <<= t.reply.shiftCnt - t.reply.end.UpdateForward(seqnum.Size(irs)) - - windowSize := t.original.windowSize(tcp) - t.original.end = t.original.una.Add(windowSize) - - // If the ACK was set (it is acceptable), update our unacknowledgement - // tracking. - if ackPresent { - // Advance the "una" and "end" indices of the original stream. - if t.original.una.LessThan(ack) { - t.original.una = ack - } - - if end := ack.Add(seqnum.Size(windowSize)); t.original.end.LessThan(end) { - t.original.end = end - } - } - - // Update handlers so that new calls will be handled by new state. - t.handlerReply = allOtherReply - t.handlerOriginal = allOtherOriginal - - return ResultAlive -} - -// synSentStateOriginal is the state handler for original segments when the -// connection is in SYN-SENT state. -func synSentStateOriginal(t *TCB, tcp header.TCP, _ int) Result { - // Drop original segments that aren't retransmits of the original one. - if tcp.Flags() != header.TCPFlagSyn || tcp.SequenceNumber() != uint32(t.original.una) { - return ResultDrop - } - - // Update the receive window. We only remember the largest value seen. - if wnd := seqnum.Value(tcp.WindowSize()); wnd > t.reply.end { - t.reply.end = wnd - } - - return ResultConnecting -} - -// update updates the state of reply and original streams, given the supplied -// reply segment. For original segments, this same function can be called with -// swapped reply/original streams. -func update(tcp header.TCP, reply, original *stream, firstFin **stream, dataLen int) Result { - // Ignore segments out of the window. - s := seqnum.Value(tcp.SequenceNumber()) - if !reply.acceptable(s, seqnum.Size(dataLen)) { - return ResultAlive - } - - flags := tcp.Flags() - if flags&header.TCPFlagRst != 0 { - reply.rstSeen = true - return ResultReset - } - - // Ignore segments that don't have the ACK flag, and those with the SYN - // flag. - if flags&header.TCPFlagAck == 0 || flags&header.TCPFlagSyn != 0 { - return ResultAlive - } - - // Ignore segments that acknowledge not yet sent data. - ack := seqnum.Value(tcp.AckNumber()) - if original.nxt.LessThan(ack) { - return ResultAlive - } - - // Advance the "una" and "end" indices of the original stream. - if original.una.LessThan(ack) { - original.una = ack - } - - if end := ack.Add(original.windowSize(tcp)); original.end.LessThan(end) { - original.end = end - } - - // Advance the "nxt" index of the reply stream. - end := s.Add(logicalLen(tcp, dataLen, reply.rwndSize())) - if reply.nxt.LessThan(end) { - reply.nxt = end - } - - // Note the index of the FIN segment. And stash away a pointer to the - // first stream to see a FIN. - if flags&header.TCPFlagFin != 0 && !reply.finSeen { - reply.finSeen = true - reply.fin = end - 1 - - if *firstFin == nil { - *firstFin = reply - } - } - - return ResultAlive -} - -// allOtherReply is the state handler for reply segments in all states -// except SYN-SENT. -func allOtherReply(t *TCB, tcp header.TCP, dataLen int) Result { - return t.adaptResult(update(tcp, &t.reply, &t.original, &t.firstFin, dataLen)) -} - -// allOtherOriginal is the state handler for original segments in all states -// except SYN-SENT. -func allOtherOriginal(t *TCB, tcp header.TCP, dataLen int) Result { - return t.adaptResult(update(tcp, &t.original, &t.reply, &t.firstFin, dataLen)) -} - -// streams holds the state of a TCP unidirectional stream. -// -// +stateify savable -type stream struct { - // The interval [una, end) is the allowed interval as defined by the - // receiver, i.e., anything less than una has already been acknowledged - // and anything greater than or equal to end is beyond the receiver - // window. The interval [una, nxt) is the acknowledgable range, whose - // right edge indicates the sequence number of the next byte to be sent - // by the sender, i.e., anything greater than or equal to nxt hasn't - // been sent yet. - una seqnum.Value - nxt seqnum.Value - end seqnum.Value - - // finSeen indicates if a FIN has already been sent on this stream. - finSeen bool - - // fin is the sequence number of the FIN. It is only valid after finSeen - // is set to true. - fin seqnum.Value - - // rstSeen indicates if a RST has already been sent on this stream. - rstSeen bool - - // shiftCnt is the shift of the window scale of the receiver of the stream, - // i.e. in a stream from A to B it is B's receive window scale. It cannot be - // greater than maxWindowScale. - shiftCnt int -} - -// acceptable determines if the segment with the given sequence number and data -// length is acceptable, i.e., if it's within the [una, end) window or, in case -// the window is zero, if it's a packet with no payload and sequence number -// equal to una. -func (s *stream) acceptable(segSeq seqnum.Value, segLen seqnum.Size) bool { - return header.Acceptable(segSeq, segLen, s.una, s.end) -} - -// closed determines if the stream has already been closed. This happens when -// a FIN has been set by the sender and acknowledged by the receiver. -func (s *stream) closed() bool { - return s.finSeen && s.fin.LessThan(s.una) -} - -// rwndSize returns the stream's receive window size. -func (s *stream) rwndSize() seqnum.Size { - return s.una.Size(s.end) -} - -// windowSize returns the stream's window size accounting for scale. -func (s *stream) windowSize(tcp header.TCP) seqnum.Size { - return seqnum.Size(tcp.WindowSize()) << s.shiftCnt -} - -// logicalLenSyn calculates the logical length of a SYN (without ACK) segment. -// It is similar to logicalLen, but does not impose a window size requirement -// because of the SYN. -func logicalLenSyn(tcp header.TCP, dataLen int) seqnum.Size { - length := seqnum.Size(dataLen) - flags := tcp.Flags() - if flags&header.TCPFlagSyn != 0 { - length++ - } - if flags&header.TCPFlagFin != 0 { - length++ - } - return length -} - -// logicalLen calculates the logical length of the TCP segment. -func logicalLen(tcp header.TCP, dataLen int, windowSize seqnum.Size) seqnum.Size { - // If the segment is too large, TCP trims the payload per RFC 793 page 70. - length := logicalLenSyn(tcp, dataLen) - if length > windowSize { - length = windowSize - } - return length -} - -// IsEmpty returns true if tcb is not initialized. -func (t *TCB) IsEmpty() bool { - if t.reply != (stream{}) || t.original != (stream{}) { - return false - } - - if t.firstFin != nil || t.state != ResultDrop { - return false - } - - return true -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcpconntrack/tcpconntrack_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcpconntrack/tcpconntrack_state_autogen.go deleted file mode 100644 index fbf84e64dc..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/tcpconntrack/tcpconntrack_state_autogen.go +++ /dev/null @@ -1,91 +0,0 @@ -// automatically generated by stateify. - -package tcpconntrack - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (t *TCB) StateTypeName() string { - return "pkg/tcpip/transport/tcpconntrack.TCB" -} - -func (t *TCB) StateFields() []string { - return []string{ - "reply", - "original", - "firstFin", - "state", - } -} - -func (t *TCB) beforeSave() {} - -// +checklocksignore -func (t *TCB) StateSave(stateSinkObject state.Sink) { - t.beforeSave() - stateSinkObject.Save(0, &t.reply) - stateSinkObject.Save(1, &t.original) - stateSinkObject.Save(2, &t.firstFin) - stateSinkObject.Save(3, &t.state) -} - -func (t *TCB) afterLoad(context.Context) {} - -// +checklocksignore -func (t *TCB) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &t.reply) - stateSourceObject.Load(1, &t.original) - stateSourceObject.Load(2, &t.firstFin) - stateSourceObject.Load(3, &t.state) -} - -func (s *stream) StateTypeName() string { - return "pkg/tcpip/transport/tcpconntrack.stream" -} - -func (s *stream) StateFields() []string { - return []string{ - "una", - "nxt", - "end", - "finSeen", - "fin", - "rstSeen", - "shiftCnt", - } -} - -func (s *stream) beforeSave() {} - -// +checklocksignore -func (s *stream) StateSave(stateSinkObject state.Sink) { - s.beforeSave() - stateSinkObject.Save(0, &s.una) - stateSinkObject.Save(1, &s.nxt) - stateSinkObject.Save(2, &s.end) - stateSinkObject.Save(3, &s.finSeen) - stateSinkObject.Save(4, &s.fin) - stateSinkObject.Save(5, &s.rstSeen) - stateSinkObject.Save(6, &s.shiftCnt) -} - -func (s *stream) afterLoad(context.Context) {} - -// +checklocksignore -func (s *stream) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &s.una) - stateSourceObject.Load(1, &s.nxt) - stateSourceObject.Load(2, &s.end) - stateSourceObject.Load(3, &s.finSeen) - stateSourceObject.Load(4, &s.fin) - stateSourceObject.Load(5, &s.rstSeen) - stateSourceObject.Load(6, &s.shiftCnt) -} - -func init() { - state.Register((*TCB)(nil)) - state.Register((*stream)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/transport.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/transport.go deleted file mode 100644 index 4c2ae87f42..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/transport.go +++ /dev/null @@ -1,16 +0,0 @@ -// Copyright 2021 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package transport supports transport protocols. -package transport diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/transport_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/transport_state_autogen.go deleted file mode 100644 index c023165ec6..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/transport_state_autogen.go +++ /dev/null @@ -1,3 +0,0 @@ -// automatically generated by stateify. - -package transport diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/endpoint.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/endpoint.go deleted file mode 100644 index f8e3057970..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/endpoint.go +++ /dev/null @@ -1,1092 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package udp - -import ( - "bytes" - "fmt" - "io" - "math" - "time" - - "gvisor.dev/gvisor/pkg/sync" - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/checksum" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/ports" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport" - "gvisor.dev/gvisor/pkg/tcpip/transport/internal/network" - "gvisor.dev/gvisor/pkg/waiter" -) - -// +stateify savable -type udpPacket struct { - udpPacketEntry - netProto tcpip.NetworkProtocolNumber - senderAddress tcpip.FullAddress - destinationAddress tcpip.FullAddress - packetInfo tcpip.IPPacketInfo - pkt *stack.PacketBuffer - receivedAt time.Time `state:".(int64)"` - // tosOrTClass stores either the Type of Service for IPv4 or the Traffic Class - // for IPv6. - tosOrTClass uint8 - // ttlOrHopLimit stores either the TTL for IPv4 or the HopLimit for IPv6 - ttlOrHopLimit uint8 -} - -// endpoint represents a UDP endpoint. This struct serves as the interface -// between users of the endpoint and the protocol implementation; it is legal to -// have concurrent goroutines make calls into the endpoint, they are properly -// synchronized. -// -// It implements tcpip.Endpoint. -// -// +stateify savable -type endpoint struct { - tcpip.DefaultSocketOptionsHandler - - // The following fields are initialized at creation time and do not - // change throughout the lifetime of the endpoint. - stack *stack.Stack `state:"manual"` - waiterQueue *waiter.Queue - net network.Endpoint - stats tcpip.TransportEndpointStats - ops tcpip.SocketOptions - - // The following fields are used to manage the receive queue, and are - // protected by rcvMu. - rcvMu sync.Mutex `state:"nosave"` - rcvReady bool - rcvList udpPacketList - rcvBufSize int - rcvClosed bool - - lastErrorMu sync.Mutex `state:"nosave"` - lastError tcpip.Error - - // The following fields are protected by the mu mutex. - mu sync.RWMutex `state:"nosave"` - portFlags ports.Flags - - // Values used to reserve a port or register a transport endpoint. - // (which ever happens first). - boundBindToDevice tcpip.NICID - boundPortFlags ports.Flags - - readShutdown bool - - // effectiveNetProtos contains the network protocols actually in use. In - // most cases it will only contain "netProto", but in cases like IPv6 - // endpoints with v6only set to false, this could include multiple - // protocols (e.g., IPv6 and IPv4) or a single different protocol (e.g., - // IPv4 when IPv6 endpoint is bound or connected to an IPv4 mapped - // address). - effectiveNetProtos []tcpip.NetworkProtocolNumber - - // frozen indicates if the packets should be delivered to the endpoint - // during restore. - frozen bool - - localPort uint16 - remotePort uint16 -} - -func newEndpoint(s *stack.Stack, netProto tcpip.NetworkProtocolNumber, waiterQueue *waiter.Queue) *endpoint { - e := &endpoint{ - stack: s, - waiterQueue: waiterQueue, - } - e.ops.InitHandler(e, e.stack, tcpip.GetStackSendBufferLimits, tcpip.GetStackReceiveBufferLimits) - e.ops.SetMulticastLoop(true) - e.ops.SetSendBufferSize(32*1024, false /* notify */) - e.ops.SetReceiveBufferSize(32*1024, false /* notify */) - e.net.Init(s, netProto, header.UDPProtocolNumber, &e.ops, waiterQueue) - - // Override with stack defaults. - var ss tcpip.SendBufferSizeOption - if err := s.Option(&ss); err == nil { - e.ops.SetSendBufferSize(int64(ss.Default), false /* notify */) - } - - var rs tcpip.ReceiveBufferSizeOption - if err := s.Option(&rs); err == nil { - e.ops.SetReceiveBufferSize(int64(rs.Default), false /* notify */) - } - - return e -} - -// WakeupWriters implements tcpip.SocketOptionsHandler. -func (e *endpoint) WakeupWriters() { - e.net.MaybeSignalWritable() -} - -func (e *endpoint) LastError() tcpip.Error { - e.lastErrorMu.Lock() - defer e.lastErrorMu.Unlock() - - err := e.lastError - e.lastError = nil - return err -} - -// UpdateLastError implements tcpip.SocketOptionsHandler. -func (e *endpoint) UpdateLastError(err tcpip.Error) { - e.lastErrorMu.Lock() - e.lastError = err - e.lastErrorMu.Unlock() -} - -// Abort implements stack.TransportEndpoint. -func (e *endpoint) Abort() { - e.Close() -} - -// Close puts the endpoint in a closed state and frees all resources -// associated with it. -func (e *endpoint) Close() { - e.mu.Lock() - - switch state := e.net.State(); state { - case transport.DatagramEndpointStateInitial: - case transport.DatagramEndpointStateClosed: - e.mu.Unlock() - return - case transport.DatagramEndpointStateBound, transport.DatagramEndpointStateConnected: - id := e.net.Info().ID - id.LocalPort = e.localPort - id.RemotePort = e.remotePort - e.stack.UnregisterTransportEndpoint(e.effectiveNetProtos, ProtocolNumber, id, e, e.boundPortFlags, e.boundBindToDevice) - portRes := ports.Reservation{ - Networks: e.effectiveNetProtos, - Transport: ProtocolNumber, - Addr: id.LocalAddress, - Port: id.LocalPort, - Flags: e.boundPortFlags, - BindToDevice: e.boundBindToDevice, - Dest: tcpip.FullAddress{}, - } - e.stack.ReleasePort(portRes) - e.boundBindToDevice = 0 - e.boundPortFlags = ports.Flags{} - default: - panic(fmt.Sprintf("unhandled state = %s", state)) - } - - // Close the receive list and drain it. - e.rcvMu.Lock() - e.rcvClosed = true - e.rcvBufSize = 0 - for !e.rcvList.Empty() { - p := e.rcvList.Front() - e.rcvList.Remove(p) - p.pkt.DecRef() - } - e.rcvMu.Unlock() - - e.net.Shutdown() - e.net.Close() - e.readShutdown = true - e.mu.Unlock() - - e.waiterQueue.Notify(waiter.EventHUp | waiter.EventErr | waiter.ReadableEvents | waiter.WritableEvents) -} - -// ModerateRecvBuf implements tcpip.Endpoint. -func (*endpoint) ModerateRecvBuf(int) {} - -// Read implements tcpip.Endpoint. -func (e *endpoint) Read(dst io.Writer, opts tcpip.ReadOptions) (tcpip.ReadResult, tcpip.Error) { - if err := e.LastError(); err != nil { - return tcpip.ReadResult{}, err - } - - e.rcvMu.Lock() - - if e.rcvList.Empty() { - var err tcpip.Error = &tcpip.ErrWouldBlock{} - if e.rcvClosed { - e.stats.ReadErrors.ReadClosed.Increment() - err = &tcpip.ErrClosedForReceive{} - } - e.rcvMu.Unlock() - return tcpip.ReadResult{}, err - } - - p := e.rcvList.Front() - if !opts.Peek { - e.rcvList.Remove(p) - defer p.pkt.DecRef() - e.rcvBufSize -= p.pkt.Data().Size() - } - e.rcvMu.Unlock() - - // Control Messages - // TODO(https://gvisor.dev/issue/7012): Share control message code with other - // network endpoints. - cm := tcpip.ReceivableControlMessages{ - HasTimestamp: true, - Timestamp: p.receivedAt, - } - switch p.netProto { - case header.IPv4ProtocolNumber: - if e.ops.GetReceiveTOS() { - cm.HasTOS = true - cm.TOS = p.tosOrTClass - } - if e.ops.GetReceiveTTL() { - cm.HasTTL = true - cm.TTL = p.ttlOrHopLimit - } - if e.ops.GetReceivePacketInfo() { - cm.HasIPPacketInfo = true - cm.PacketInfo = p.packetInfo - } - case header.IPv6ProtocolNumber: - if e.ops.GetReceiveTClass() { - cm.HasTClass = true - // Although TClass is an 8-bit value it's read in the CMsg as a uint32. - cm.TClass = uint32(p.tosOrTClass) - } - if e.ops.GetReceiveHopLimit() { - cm.HasHopLimit = true - cm.HopLimit = p.ttlOrHopLimit - } - if e.ops.GetIPv6ReceivePacketInfo() { - cm.HasIPv6PacketInfo = true - cm.IPv6PacketInfo = tcpip.IPv6PacketInfo{ - NIC: p.packetInfo.NIC, - Addr: p.packetInfo.DestinationAddr, - } - } - default: - panic(fmt.Sprintf("unrecognized network protocol = %d", p.netProto)) - } - - if e.ops.GetReceiveOriginalDstAddress() { - cm.HasOriginalDstAddress = true - cm.OriginalDstAddress = p.destinationAddress - } - - // Read Result - res := tcpip.ReadResult{ - Total: p.pkt.Data().Size(), - ControlMessages: cm, - } - if opts.NeedRemoteAddr { - res.RemoteAddr = p.senderAddress - } - - n, err := p.pkt.Data().ReadTo(dst, opts.Peek) - if n == 0 && err != nil { - return res, &tcpip.ErrBadBuffer{} - } - res.Count = n - return res, nil -} - -// prepareForWriteInner prepares the endpoint for sending data. In particular, -// it binds it if it's still in the initial state. To do so, it must first -// reacquire the mutex in exclusive mode. -// -// Returns true for retry if preparation should be retried. -// +checklocksread:e.mu -func (e *endpoint) prepareForWriteInner(to *tcpip.FullAddress) (retry bool, err tcpip.Error) { - switch e.net.State() { - case transport.DatagramEndpointStateInitial: - case transport.DatagramEndpointStateConnected: - return false, nil - - case transport.DatagramEndpointStateBound: - if to == nil { - return false, &tcpip.ErrDestinationRequired{} - } - return false, nil - default: - return false, &tcpip.ErrInvalidEndpointState{} - } - - e.mu.RUnlock() - e.mu.Lock() - defer e.mu.DowngradeLock() - - // The state changed when we released the shared locked and re-acquired - // it in exclusive mode. Try again. - if e.net.State() != transport.DatagramEndpointStateInitial { - return true, nil - } - - // The state is still 'initial', so try to bind the endpoint. - if err := e.bindLocked(tcpip.FullAddress{}); err != nil { - return false, err - } - - return true, nil -} - -var _ tcpip.EndpointWithPreflight = (*endpoint)(nil) - -// Validates the passed WriteOptions and prepares the endpoint for writes -// using those options. If the endpoint is unbound and the `To` address -// is specified, binds the endpoint to that address. -func (e *endpoint) Preflight(opts tcpip.WriteOptions) tcpip.Error { - var r bytes.Reader - udpInfo, err := e.prepareForWrite(&r, opts) - if err == nil { - udpInfo.ctx.Release() - } - return err -} - -// Write writes data to the endpoint's peer. This method does not block -// if the data cannot be written. -func (e *endpoint) Write(p tcpip.Payloader, opts tcpip.WriteOptions) (int64, tcpip.Error) { - n, err := e.write(p, opts) - switch err.(type) { - case nil: - e.stats.PacketsSent.Increment() - case *tcpip.ErrMessageTooLong, *tcpip.ErrInvalidOptionValue: - e.stats.WriteErrors.InvalidArgs.Increment() - case *tcpip.ErrClosedForSend: - e.stats.WriteErrors.WriteClosed.Increment() - case *tcpip.ErrInvalidEndpointState: - e.stats.WriteErrors.InvalidEndpointState.Increment() - case *tcpip.ErrHostUnreachable, *tcpip.ErrBroadcastDisabled, *tcpip.ErrNetworkUnreachable: - // Errors indicating any problem with IP routing of the packet. - e.stats.SendErrors.NoRoute.Increment() - default: - // For all other errors when writing to the network layer. - e.stats.SendErrors.SendToNetworkFailed.Increment() - } - return n, err -} - -func (e *endpoint) prepareForWrite(p tcpip.Payloader, opts tcpip.WriteOptions) (udpPacketInfo, tcpip.Error) { - e.mu.RLock() - defer e.mu.RUnlock() - - // Prepare for write. - for { - retry, err := e.prepareForWriteInner(opts.To) - if err != nil { - return udpPacketInfo{}, err - } - - if !retry { - break - } - } - - dst, connected := e.net.GetRemoteAddress() - dst.Port = e.remotePort - if opts.To != nil { - if opts.To.Port == 0 { - // Port 0 is an invalid port to send to. - return udpPacketInfo{}, &tcpip.ErrInvalidEndpointState{} - } - - dst = *opts.To - } else if !connected { - return udpPacketInfo{}, &tcpip.ErrDestinationRequired{} - } - - ctx, err := e.net.AcquireContextForWrite(opts) - if err != nil { - return udpPacketInfo{}, err - } - - if p.Len() > header.UDPMaximumPacketSize { - // Native linux behaviour differs for IPv4 and IPv6 packets; IPv4 packet - // errors aren't report to the error queue at all. - if ctx.PacketInfo().NetProto == header.IPv6ProtocolNumber { - so := e.SocketOptions() - if so.GetIPv6RecvError() { - so.QueueLocalErr( - &tcpip.ErrMessageTooLong{}, - e.net.NetProto(), - uint32(p.Len()), - dst, - nil, - ) - } - } - ctx.Release() - return udpPacketInfo{}, &tcpip.ErrMessageTooLong{} - } - - return udpPacketInfo{ - ctx: ctx, - localPort: e.localPort, - remotePort: dst.Port, - }, nil -} - -func (e *endpoint) write(p tcpip.Payloader, opts tcpip.WriteOptions) (int64, tcpip.Error) { - // Do not hold lock when sending as loopback is synchronous and if the UDP - // datagram ends up generating an ICMP response then it can result in a - // deadlock where the ICMP response handling ends up acquiring this endpoint's - // mutex using e.mu.RLock() in endpoint.HandleControlPacket which can cause a - // deadlock if another caller is trying to acquire e.mu in exclusive mode w/ - // e.mu.Lock(). Since e.mu.Lock() prevents any new read locks to ensure the - // lock can be eventually acquired. - // - // See: https://golang.org/pkg/sync/#RWMutex for details on why recursive read - // locking is prohibited. - - if err := e.LastError(); err != nil { - return 0, err - } - - udpInfo, err := e.prepareForWrite(p, opts) - if err != nil { - return 0, err - } - defer udpInfo.ctx.Release() - - dataSz := p.Len() - pktInfo := udpInfo.ctx.PacketInfo() - pkt := udpInfo.ctx.TryNewPacketBufferFromPayloader(header.UDPMinimumSize+int(pktInfo.MaxHeaderLength), p) - if pkt == nil { - return 0, &tcpip.ErrWouldBlock{} - } - defer pkt.DecRef() - - // Initialize the UDP header. - udp := header.UDP(pkt.TransportHeader().Push(header.UDPMinimumSize)) - pkt.TransportProtocolNumber = ProtocolNumber - - length := uint16(pkt.Size()) - udp.Encode(&header.UDPFields{ - SrcPort: udpInfo.localPort, - DstPort: udpInfo.remotePort, - Length: length, - }) - - // Set the checksum field unless TX checksum offload is enabled. - // On IPv4, UDP checksum is optional, and a zero value indicates the - // transmitter skipped the checksum generation (RFC768). - // On IPv6, UDP checksum is not optional (RFC2460 Section 8.1). - if pktInfo.RequiresTXTransportChecksum && - (!e.ops.GetNoChecksum() || pktInfo.NetProto == header.IPv6ProtocolNumber) { - xsum := udp.CalculateChecksum(checksum.Combine( - header.PseudoHeaderChecksum(ProtocolNumber, pktInfo.LocalAddress, pktInfo.RemoteAddress, length), - pkt.Data().Checksum(), - )) - // As per RFC 768 page 2, - // - // Checksum is the 16-bit one's complement of the one's complement sum of - // a pseudo header of information from the IP header, the UDP header, and - // the data, padded with zero octets at the end (if necessary) to make a - // multiple of two octets. - // - // The pseudo header conceptually prefixed to the UDP header contains the - // source address, the destination address, the protocol, and the UDP - // length. This information gives protection against misrouted datagrams. - // This checksum procedure is the same as is used in TCP. - // - // If the computed checksum is zero, it is transmitted as all ones (the - // equivalent in one's complement arithmetic). An all zero transmitted - // checksum value means that the transmitter generated no checksum (for - // debugging or for higher level protocols that don't care). - // - // To avoid the zero value, we only calculate the one's complement of the - // one's complement sum if the sum is not all ones. - if xsum != math.MaxUint16 { - xsum = ^xsum - } - udp.SetChecksum(xsum) - } - if err := udpInfo.ctx.WritePacket(pkt, false /* headerIncluded */); err != nil { - e.stack.Stats().UDP.PacketSendErrors.Increment() - return 0, err - } - - // Track count of packets sent. - e.stack.Stats().UDP.PacketsSent.Increment() - return int64(dataSz), nil -} - -// OnReuseAddressSet implements tcpip.SocketOptionsHandler. -func (e *endpoint) OnReuseAddressSet(v bool) { - e.mu.Lock() - e.portFlags.MostRecent = v - e.mu.Unlock() -} - -// OnReusePortSet implements tcpip.SocketOptionsHandler. -func (e *endpoint) OnReusePortSet(v bool) { - e.mu.Lock() - e.portFlags.LoadBalanced = v - e.mu.Unlock() -} - -// SetSockOptInt implements tcpip.Endpoint. -func (e *endpoint) SetSockOptInt(opt tcpip.SockOptInt, v int) tcpip.Error { - return e.net.SetSockOptInt(opt, v) -} - -var _ tcpip.SocketOptionsHandler = (*endpoint)(nil) - -// HasNIC implements tcpip.SocketOptionsHandler. -func (e *endpoint) HasNIC(id int32) bool { - return e.stack.HasNIC(tcpip.NICID(id)) -} - -// SetSockOpt implements tcpip.Endpoint. -func (e *endpoint) SetSockOpt(opt tcpip.SettableSocketOption) tcpip.Error { - return e.net.SetSockOpt(opt) -} - -// GetSockOptInt implements tcpip.Endpoint. -func (e *endpoint) GetSockOptInt(opt tcpip.SockOptInt) (int, tcpip.Error) { - switch opt { - case tcpip.ReceiveQueueSizeOption: - v := 0 - e.rcvMu.Lock() - if !e.rcvList.Empty() { - p := e.rcvList.Front() - v = p.pkt.Data().Size() - } - e.rcvMu.Unlock() - return v, nil - - default: - return e.net.GetSockOptInt(opt) - } -} - -// GetSockOpt implements tcpip.Endpoint. -func (e *endpoint) GetSockOpt(opt tcpip.GettableSocketOption) tcpip.Error { - return e.net.GetSockOpt(opt) -} - -// udpPacketInfo holds information needed to send a UDP packet. -type udpPacketInfo struct { - ctx network.WriteContext - localPort uint16 - remotePort uint16 -} - -// Disconnect implements tcpip.Endpoint. -func (e *endpoint) Disconnect() tcpip.Error { - e.mu.Lock() - defer e.mu.Unlock() - - if e.net.State() != transport.DatagramEndpointStateConnected { - return nil - } - var ( - id stack.TransportEndpointID - btd tcpip.NICID - ) - - // We change this value below and we need the old value to unregister - // the endpoint. - boundPortFlags := e.boundPortFlags - - // Exclude ephemerally bound endpoints. - info := e.net.Info() - info.ID.LocalPort = e.localPort - info.ID.RemotePort = e.remotePort - if e.net.WasBound() { - var err tcpip.Error - id = stack.TransportEndpointID{ - LocalPort: info.ID.LocalPort, - LocalAddress: info.ID.LocalAddress, - } - id, btd, err = e.registerWithStack(e.effectiveNetProtos, id) - if err != nil { - return err - } - boundPortFlags = e.boundPortFlags - } else { - if info.ID.LocalPort != 0 { - // Release the ephemeral port. - portRes := ports.Reservation{ - Networks: e.effectiveNetProtos, - Transport: ProtocolNumber, - Addr: info.ID.LocalAddress, - Port: info.ID.LocalPort, - Flags: boundPortFlags, - BindToDevice: e.boundBindToDevice, - Dest: tcpip.FullAddress{}, - } - e.stack.ReleasePort(portRes) - e.boundPortFlags = ports.Flags{} - } - } - - e.stack.UnregisterTransportEndpoint(e.effectiveNetProtos, ProtocolNumber, info.ID, e, boundPortFlags, e.boundBindToDevice) - e.boundBindToDevice = btd - e.localPort = id.LocalPort - e.remotePort = id.RemotePort - - e.net.Disconnect() - - return nil -} - -// Connect connects the endpoint to its peer. Specifying a NIC is optional. -func (e *endpoint) Connect(addr tcpip.FullAddress) tcpip.Error { - e.mu.Lock() - defer e.mu.Unlock() - - err := e.net.ConnectAndThen(addr, func(netProto tcpip.NetworkProtocolNumber, previousID, nextID stack.TransportEndpointID) tcpip.Error { - nextID.LocalPort = e.localPort - nextID.RemotePort = addr.Port - - // Even if we're connected, this endpoint can still be used to send - // packets on a different network protocol, so we register both even if - // v6only is set to false and this is an ipv6 endpoint. - netProtos := []tcpip.NetworkProtocolNumber{netProto} - if netProto == header.IPv6ProtocolNumber && !e.ops.GetV6Only() && e.stack.CheckNetworkProtocol(header.IPv4ProtocolNumber) { - netProtos = []tcpip.NetworkProtocolNumber{ - header.IPv4ProtocolNumber, - header.IPv6ProtocolNumber, - } - } - - oldPortFlags := e.boundPortFlags - - // Remove the old registration. - if e.localPort != 0 { - previousID.LocalPort = e.localPort - previousID.RemotePort = e.remotePort - e.stack.UnregisterTransportEndpoint(e.effectiveNetProtos, ProtocolNumber, previousID, e, oldPortFlags, e.boundBindToDevice) - } - - nextID, btd, err := e.registerWithStack(netProtos, nextID) - if err != nil { - return err - } - - e.localPort = nextID.LocalPort - e.remotePort = nextID.RemotePort - e.boundBindToDevice = btd - e.effectiveNetProtos = netProtos - return nil - }) - if err != nil { - return err - } - - e.rcvMu.Lock() - e.rcvReady = true - e.rcvMu.Unlock() - return nil -} - -// ConnectEndpoint is not supported. -func (*endpoint) ConnectEndpoint(tcpip.Endpoint) tcpip.Error { - return &tcpip.ErrInvalidEndpointState{} -} - -// Shutdown closes the read and/or write end of the endpoint connection -// to its peer. -func (e *endpoint) Shutdown(flags tcpip.ShutdownFlags) tcpip.Error { - e.mu.Lock() - defer e.mu.Unlock() - - switch state := e.net.State(); state { - case transport.DatagramEndpointStateInitial, transport.DatagramEndpointStateClosed: - return &tcpip.ErrNotConnected{} - case transport.DatagramEndpointStateBound, transport.DatagramEndpointStateConnected: - default: - panic(fmt.Sprintf("unhandled state = %s", state)) - } - - if flags&tcpip.ShutdownWrite != 0 { - if err := e.net.Shutdown(); err != nil { - return err - } - } - - if flags&tcpip.ShutdownRead != 0 { - e.readShutdown = true - - e.rcvMu.Lock() - wasClosed := e.rcvClosed - e.rcvClosed = true - e.rcvMu.Unlock() - - if !wasClosed { - e.waiterQueue.Notify(waiter.ReadableEvents) - } - } - - if e.net.State() == transport.DatagramEndpointStateBound { - return &tcpip.ErrNotConnected{} - } - return nil -} - -// Listen is not supported by UDP, it just fails. -func (*endpoint) Listen(int) tcpip.Error { - return &tcpip.ErrNotSupported{} -} - -// Accept is not supported by UDP, it just fails. -func (*endpoint) Accept(*tcpip.FullAddress) (tcpip.Endpoint, *waiter.Queue, tcpip.Error) { - return nil, nil, &tcpip.ErrNotSupported{} -} - -func (e *endpoint) registerWithStack(netProtos []tcpip.NetworkProtocolNumber, id stack.TransportEndpointID) (stack.TransportEndpointID, tcpip.NICID, tcpip.Error) { - bindToDevice := tcpip.NICID(e.ops.GetBindToDevice()) - if e.localPort == 0 { - portRes := ports.Reservation{ - Networks: netProtos, - Transport: ProtocolNumber, - Addr: id.LocalAddress, - Port: id.LocalPort, - Flags: e.portFlags, - BindToDevice: bindToDevice, - Dest: tcpip.FullAddress{}, - } - port, err := e.stack.ReservePort(e.stack.SecureRNG(), portRes, nil /* testPort */) - if err != nil { - return id, bindToDevice, err - } - id.LocalPort = port - } - e.boundPortFlags = e.portFlags - - err := e.stack.RegisterTransportEndpoint(netProtos, ProtocolNumber, id, e, e.boundPortFlags, bindToDevice) - if err != nil { - portRes := ports.Reservation{ - Networks: netProtos, - Transport: ProtocolNumber, - Addr: id.LocalAddress, - Port: id.LocalPort, - Flags: e.boundPortFlags, - BindToDevice: bindToDevice, - Dest: tcpip.FullAddress{}, - } - e.stack.ReleasePort(portRes) - e.boundPortFlags = ports.Flags{} - } - return id, bindToDevice, err -} - -func (e *endpoint) bindLocked(addr tcpip.FullAddress) tcpip.Error { - // Don't allow binding once endpoint is not in the initial state - // anymore. - if e.net.State() != transport.DatagramEndpointStateInitial { - return &tcpip.ErrInvalidEndpointState{} - } - - err := e.net.BindAndThen(addr, func(boundNetProto tcpip.NetworkProtocolNumber, boundAddr tcpip.Address) tcpip.Error { - // Expand netProtos to include v4 and v6 if the caller is binding to a - // wildcard (empty) address, and this is an IPv6 endpoint with v6only - // set to false. - netProtos := []tcpip.NetworkProtocolNumber{boundNetProto} - if boundNetProto == header.IPv6ProtocolNumber && !e.ops.GetV6Only() && boundAddr == (tcpip.Address{}) && e.stack.CheckNetworkProtocol(header.IPv4ProtocolNumber) { - netProtos = []tcpip.NetworkProtocolNumber{ - header.IPv6ProtocolNumber, - header.IPv4ProtocolNumber, - } - } - - id := stack.TransportEndpointID{ - LocalPort: addr.Port, - LocalAddress: boundAddr, - } - id, btd, err := e.registerWithStack(netProtos, id) - if err != nil { - return err - } - - e.localPort = id.LocalPort - e.boundBindToDevice = btd - e.effectiveNetProtos = netProtos - return nil - }) - if err != nil { - return err - } - - e.rcvMu.Lock() - e.rcvReady = true - e.rcvMu.Unlock() - return nil -} - -// Bind binds the endpoint to a specific local address and port. -// Specifying a NIC is optional. -func (e *endpoint) Bind(addr tcpip.FullAddress) tcpip.Error { - e.mu.Lock() - defer e.mu.Unlock() - - err := e.bindLocked(addr) - if err != nil { - return err - } - - return nil -} - -// GetLocalAddress returns the address to which the endpoint is bound. -func (e *endpoint) GetLocalAddress() (tcpip.FullAddress, tcpip.Error) { - e.mu.RLock() - defer e.mu.RUnlock() - - addr := e.net.GetLocalAddress() - addr.Port = e.localPort - return addr, nil -} - -// GetRemoteAddress returns the address to which the endpoint is connected. -func (e *endpoint) GetRemoteAddress() (tcpip.FullAddress, tcpip.Error) { - e.mu.RLock() - defer e.mu.RUnlock() - - addr, connected := e.net.GetRemoteAddress() - if !connected || e.remotePort == 0 { - return tcpip.FullAddress{}, &tcpip.ErrNotConnected{} - } - - addr.Port = e.remotePort - return addr, nil -} - -// Readiness returns the current readiness of the endpoint. For example, if -// waiter.EventIn is set, the endpoint is immediately readable. -func (e *endpoint) Readiness(mask waiter.EventMask) waiter.EventMask { - var result waiter.EventMask - - if e.net.HasSendSpace() { - result |= waiter.WritableEvents & mask - } - - // Determine if the endpoint is readable if requested. - if mask&waiter.ReadableEvents != 0 { - e.rcvMu.Lock() - if !e.rcvList.Empty() || e.rcvClosed { - result |= waiter.ReadableEvents - } - e.rcvMu.Unlock() - } - - e.lastErrorMu.Lock() - hasError := e.lastError != nil - e.lastErrorMu.Unlock() - if hasError { - result |= waiter.EventErr - } - return result -} - -// HandlePacket is called by the stack when new packets arrive to this transport -// endpoint. -func (e *endpoint) HandlePacket(id stack.TransportEndpointID, pkt *stack.PacketBuffer) { - // Get the header then trim it from the view. - hdr := header.UDP(pkt.TransportHeader().Slice()) - netHdr := pkt.Network() - lengthValid, csumValid := header.UDPValid( - hdr, - func() uint16 { return pkt.Data().Checksum() }, - uint16(pkt.Data().Size()), - pkt.NetworkProtocolNumber, - netHdr.SourceAddress(), - netHdr.DestinationAddress(), - pkt.RXChecksumValidated) - if !lengthValid { - // Malformed packet. - e.stack.Stats().UDP.MalformedPacketsReceived.Increment() - e.stats.ReceiveErrors.MalformedPacketsReceived.Increment() - return - } - - if !csumValid { - e.stack.Stats().UDP.ChecksumErrors.Increment() - e.stats.ReceiveErrors.ChecksumErrors.Increment() - return - } - - e.stack.Stats().UDP.PacketsReceived.Increment() - e.stats.PacketsReceived.Increment() - - e.rcvMu.Lock() - // Drop the packet if our buffer is not ready to receive packets. - if !e.rcvReady || e.rcvClosed { - e.rcvMu.Unlock() - e.stack.Stats().UDP.ReceiveBufferErrors.Increment() - e.stats.ReceiveErrors.ClosedReceiver.Increment() - return - } - - rcvBufSize := e.ops.GetReceiveBufferSize() - // Drop the packet if our buffer is currently full. - if e.frozen || e.rcvBufSize >= int(rcvBufSize) { - e.rcvMu.Unlock() - e.stack.Stats().UDP.ReceiveBufferErrors.Increment() - e.stats.ReceiveErrors.ReceiveBufferOverflow.Increment() - return - } - - wasEmpty := e.rcvBufSize == 0 - - // Push new packet into receive list and increment the buffer size. - packet := &udpPacket{ - netProto: pkt.NetworkProtocolNumber, - senderAddress: tcpip.FullAddress{ - NIC: pkt.NICID, - Addr: id.RemoteAddress, - Port: hdr.SourcePort(), - }, - destinationAddress: tcpip.FullAddress{ - NIC: pkt.NICID, - Addr: id.LocalAddress, - Port: hdr.DestinationPort(), - }, - pkt: pkt.IncRef(), - } - e.rcvList.PushBack(packet) - e.rcvBufSize += pkt.Data().Size() - - // Save any useful information from the network header to the packet. - packet.tosOrTClass, _ = pkt.Network().TOS() - switch pkt.NetworkProtocolNumber { - case header.IPv4ProtocolNumber: - packet.ttlOrHopLimit = header.IPv4(pkt.NetworkHeader().Slice()).TTL() - case header.IPv6ProtocolNumber: - packet.ttlOrHopLimit = header.IPv6(pkt.NetworkHeader().Slice()).HopLimit() - } - - // TODO(gvisor.dev/issue/3556): r.LocalAddress may be a multicast or broadcast - // address. packetInfo.LocalAddr should hold a unicast address that can be - // used to respond to the incoming packet. - localAddr := pkt.Network().DestinationAddress() - packet.packetInfo.LocalAddr = localAddr - packet.packetInfo.DestinationAddr = localAddr - packet.packetInfo.NIC = pkt.NICID - packet.receivedAt = e.stack.Clock().Now() - - e.rcvMu.Unlock() - - // Notify any waiters that there's data to be read now. - if wasEmpty { - e.waiterQueue.Notify(waiter.ReadableEvents) - } -} - -func (e *endpoint) onICMPError(err tcpip.Error, transErr stack.TransportError, pkt *stack.PacketBuffer) { - // Update last error first. - e.lastErrorMu.Lock() - e.lastError = err - e.lastErrorMu.Unlock() - - var recvErr bool - switch pkt.NetworkProtocolNumber { - case header.IPv4ProtocolNumber: - recvErr = e.SocketOptions().GetIPv4RecvError() - case header.IPv6ProtocolNumber: - recvErr = e.SocketOptions().GetIPv6RecvError() - default: - panic(fmt.Sprintf("unhandled network protocol number = %d", pkt.NetworkProtocolNumber)) - } - - if recvErr { - // Linux passes the payload without the UDP header. - payload := pkt.Data().AsRange().ToView() - udp := header.UDP(payload.AsSlice()) - if len(udp) >= header.UDPMinimumSize { - payload.TrimFront(header.UDPMinimumSize) - } - - id := e.net.Info().ID - e.mu.RLock() - e.SocketOptions().QueueErr(&tcpip.SockError{ - Err: err, - Cause: transErr, - Payload: payload, - Dst: tcpip.FullAddress{ - NIC: pkt.NICID, - Addr: id.RemoteAddress, - Port: e.remotePort, - }, - Offender: tcpip.FullAddress{ - NIC: pkt.NICID, - Addr: id.LocalAddress, - Port: e.localPort, - }, - NetProto: pkt.NetworkProtocolNumber, - }) - e.mu.RUnlock() - } - - // Notify of the error. - e.waiterQueue.Notify(waiter.EventErr) -} - -// HandleError implements stack.TransportEndpoint. -func (e *endpoint) HandleError(transErr stack.TransportError, pkt *stack.PacketBuffer) { - // TODO(gvisor.dev/issues/5270): Handle all transport errors. - switch transErr.Kind() { - case stack.DestinationPortUnreachableTransportError: - if e.net.State() == transport.DatagramEndpointStateConnected { - e.onICMPError(&tcpip.ErrConnectionRefused{}, transErr, pkt) - } - } -} - -// State implements tcpip.Endpoint. -func (e *endpoint) State() uint32 { - return uint32(e.net.State()) -} - -// Info returns a copy of the endpoint info. -func (e *endpoint) Info() tcpip.EndpointInfo { - e.mu.RLock() - defer e.mu.RUnlock() - info := e.net.Info() - info.ID.LocalPort = e.localPort - info.ID.RemotePort = e.remotePort - return &info -} - -// Stats returns a pointer to the endpoint stats. -func (e *endpoint) Stats() tcpip.EndpointStats { - return &e.stats -} - -// Wait implements tcpip.Endpoint. -func (*endpoint) Wait() {} - -// SetOwner implements tcpip.Endpoint. -func (e *endpoint) SetOwner(owner tcpip.PacketOwner) { - e.net.SetOwner(owner) -} - -// SocketOptions implements tcpip.Endpoint. -func (e *endpoint) SocketOptions() *tcpip.SocketOptions { - return &e.ops -} - -// freeze prevents any more packets from being delivered to the endpoint. -func (e *endpoint) freeze() { - e.mu.Lock() - e.frozen = true - e.mu.Unlock() -} - -// thaw unfreezes a previously frozen endpoint using endpoint.freeze() allows -// new packets to be delivered again. -func (e *endpoint) thaw() { - e.mu.Lock() - e.frozen = false - e.mu.Unlock() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/endpoint_state.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/endpoint_state.go deleted file mode 100644 index 488e46600d..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/endpoint_state.go +++ /dev/null @@ -1,84 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package udp - -import ( - "context" - "fmt" - "time" - - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport" -) - -// saveReceivedAt is invoked by stateify. -func (p *udpPacket) saveReceivedAt() int64 { - return p.receivedAt.UnixNano() -} - -// loadReceivedAt is invoked by stateify. -func (p *udpPacket) loadReceivedAt(_ context.Context, nsec int64) { - p.receivedAt = time.Unix(0, nsec) -} - -// afterLoad is invoked by stateify. -func (e *endpoint) afterLoad(ctx context.Context) { - stack.RestoreStackFromContext(ctx).RegisterRestoredEndpoint(e) -} - -// beforeSave is invoked by stateify. -func (e *endpoint) beforeSave() { - e.freeze() - e.stack.RegisterResumableEndpoint(e) -} - -// Restore implements tcpip.RestoredEndpoint.Restore. -func (e *endpoint) Restore(s *stack.Stack) { - e.thaw() - - e.mu.Lock() - defer e.mu.Unlock() - - e.net.Resume(s) - - e.stack = s - e.ops.InitHandler(e, e.stack, tcpip.GetStackSendBufferLimits, tcpip.GetStackReceiveBufferLimits) - - switch state := e.net.State(); state { - case transport.DatagramEndpointStateInitial, transport.DatagramEndpointStateClosed: - case transport.DatagramEndpointStateBound, transport.DatagramEndpointStateConnected: - // Our saved state had a port, but we don't actually have a - // reservation. We need to remove the port from our state, but still - // pass it to the reservation machinery. - var err tcpip.Error - id := e.net.Info().ID - id.LocalPort = e.localPort - id.RemotePort = e.remotePort - id, e.boundBindToDevice, err = e.registerWithStack(e.effectiveNetProtos, id) - if err != nil { - panic(err) - } - e.localPort = id.LocalPort - e.remotePort = id.RemotePort - default: - panic(fmt.Sprintf("unhandled state = %s", state)) - } -} - -// Resume implements tcpip.ResumableEndpoint.Resume. -func (e *endpoint) Resume() { - e.thaw() -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/forwarder.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/forwarder.go deleted file mode 100644 index 7950abe58b..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/forwarder.go +++ /dev/null @@ -1,103 +0,0 @@ -// Copyright 2019 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package udp - -import ( - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/waiter" -) - -// Forwarder is a session request forwarder, which allows clients to decide -// what to do with a session request, for example: ignore it, or process it. -// -// The canonical way of using it is to pass the Forwarder.HandlePacket function -// to stack.SetTransportProtocolHandler. -type Forwarder struct { - handler func(*ForwarderRequest) - - stack *stack.Stack -} - -// NewForwarder allocates and initializes a new forwarder. -func NewForwarder(s *stack.Stack, handler func(*ForwarderRequest)) *Forwarder { - return &Forwarder{ - stack: s, - handler: handler, - } -} - -// HandlePacket handles all packets. -// -// This function is expected to be passed as an argument to the -// stack.SetTransportProtocolHandler function. -func (f *Forwarder) HandlePacket(id stack.TransportEndpointID, pkt *stack.PacketBuffer) bool { - f.handler(&ForwarderRequest{ - stack: f.stack, - id: id, - pkt: pkt.IncRef(), - }) - - return true -} - -// ForwarderRequest represents a session request received by the forwarder and -// passed to the client. Clients may optionally create an endpoint to represent -// it via CreateEndpoint. -type ForwarderRequest struct { - stack *stack.Stack - id stack.TransportEndpointID - pkt *stack.PacketBuffer -} - -// ID returns the 4-tuple (src address, src port, dst address, dst port) that -// represents the session request. -func (r *ForwarderRequest) ID() stack.TransportEndpointID { - return r.id -} - -// CreateEndpoint creates a connected UDP endpoint for the session request. -func (r *ForwarderRequest) CreateEndpoint(queue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - ep := newEndpoint(r.stack, r.pkt.NetworkProtocolNumber, queue) - ep.mu.Lock() - defer ep.mu.Unlock() - - netHdr := r.pkt.Network() - if err := ep.net.Bind(tcpip.FullAddress{NIC: r.pkt.NICID, Addr: netHdr.DestinationAddress(), Port: r.id.LocalPort}); err != nil { - return nil, err - } - - if err := ep.net.Connect(tcpip.FullAddress{NIC: r.pkt.NICID, Addr: netHdr.SourceAddress(), Port: r.id.RemotePort}); err != nil { - return nil, err - } - - if err := r.stack.RegisterTransportEndpoint([]tcpip.NetworkProtocolNumber{r.pkt.NetworkProtocolNumber}, ProtocolNumber, r.id, ep, ep.portFlags, tcpip.NICID(ep.ops.GetBindToDevice())); err != nil { - ep.Close() - return nil, err - } - - ep.localPort = r.id.LocalPort - ep.remotePort = r.id.RemotePort - ep.effectiveNetProtos = []tcpip.NetworkProtocolNumber{r.pkt.NetworkProtocolNumber} - ep.boundPortFlags = ep.portFlags - - ep.rcvMu.Lock() - ep.rcvReady = true - ep.rcvMu.Unlock() - - ep.HandlePacket(r.id, r.pkt) - - return ep, nil -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/protocol.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/protocol.go deleted file mode 100644 index 49870ab895..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/protocol.go +++ /dev/null @@ -1,135 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package udp contains the implementation of the UDP transport protocol. -package udp - -import ( - "gvisor.dev/gvisor/pkg/tcpip" - "gvisor.dev/gvisor/pkg/tcpip/header" - "gvisor.dev/gvisor/pkg/tcpip/header/parse" - "gvisor.dev/gvisor/pkg/tcpip/stack" - "gvisor.dev/gvisor/pkg/tcpip/transport/raw" - "gvisor.dev/gvisor/pkg/waiter" -) - -const ( - // ProtocolNumber is the udp protocol number. - ProtocolNumber = header.UDPProtocolNumber - - // MinBufferSize is the smallest size of a receive or send buffer. - MinBufferSize = 4 << 10 // 4KiB bytes. - - // DefaultSendBufferSize is the default size of the send buffer for - // an endpoint. - DefaultSendBufferSize = 32 << 10 // 32KiB - - // DefaultReceiveBufferSize is the default size of the receive buffer - // for an endpoint. - DefaultReceiveBufferSize = 32 << 10 // 32KiB - - // MaxBufferSize is the largest size a receive/send buffer can grow to. - MaxBufferSize = 4 << 20 // 4MiB -) - -// +stateify savable -type protocol struct { - stack *stack.Stack -} - -// Number returns the udp protocol number. -func (*protocol) Number() tcpip.TransportProtocolNumber { - return ProtocolNumber -} - -// NewEndpoint creates a new udp endpoint. -func (p *protocol) NewEndpoint(netProto tcpip.NetworkProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - return newEndpoint(p.stack, netProto, waiterQueue), nil -} - -// NewRawEndpoint creates a new raw UDP endpoint. It implements -// stack.TransportProtocol.NewRawEndpoint. -func (p *protocol) NewRawEndpoint(netProto tcpip.NetworkProtocolNumber, waiterQueue *waiter.Queue) (tcpip.Endpoint, tcpip.Error) { - return raw.NewEndpoint(p.stack, netProto, header.UDPProtocolNumber, waiterQueue) -} - -// MinimumPacketSize returns the minimum valid udp packet size. -func (*protocol) MinimumPacketSize() int { - return header.UDPMinimumSize -} - -// ParsePorts returns the source and destination ports stored in the given udp -// packet. -func (*protocol) ParsePorts(v []byte) (src, dst uint16, err tcpip.Error) { - h := header.UDP(v) - return h.SourcePort(), h.DestinationPort(), nil -} - -// HandleUnknownDestinationPacket handles packets that are targeted at this -// protocol but don't match any existing endpoint. -func (p *protocol) HandleUnknownDestinationPacket(id stack.TransportEndpointID, pkt *stack.PacketBuffer) stack.UnknownDestinationPacketDisposition { - hdr := header.UDP(pkt.TransportHeader().Slice()) - netHdr := pkt.Network() - lengthValid, csumValid := header.UDPValid( - hdr, - func() uint16 { return pkt.Data().Checksum() }, - uint16(pkt.Data().Size()), - pkt.NetworkProtocolNumber, - netHdr.SourceAddress(), - netHdr.DestinationAddress(), - pkt.RXChecksumValidated) - if !lengthValid { - p.stack.Stats().UDP.MalformedPacketsReceived.Increment() - return stack.UnknownDestinationPacketMalformed - } - - if !csumValid { - p.stack.Stats().UDP.ChecksumErrors.Increment() - return stack.UnknownDestinationPacketMalformed - } - - return stack.UnknownDestinationPacketUnhandled -} - -// SetOption implements stack.TransportProtocol.SetOption. -func (*protocol) SetOption(tcpip.SettableTransportProtocolOption) tcpip.Error { - return &tcpip.ErrUnknownProtocolOption{} -} - -// Option implements stack.TransportProtocol.Option. -func (*protocol) Option(tcpip.GettableTransportProtocolOption) tcpip.Error { - return &tcpip.ErrUnknownProtocolOption{} -} - -// Close implements stack.TransportProtocol.Close. -func (*protocol) Close() {} - -// Wait implements stack.TransportProtocol.Wait. -func (*protocol) Wait() {} - -// Pause implements stack.TransportProtocol.Pause. -func (*protocol) Pause() {} - -// Resume implements stack.TransportProtocol.Resume. -func (*protocol) Resume() {} - -// Parse implements stack.TransportProtocol.Parse. -func (*protocol) Parse(pkt *stack.PacketBuffer) bool { - return parse.UDP(pkt) -} - -// NewProtocol returns a UDP transport protocol. -func NewProtocol(s *stack.Stack) stack.TransportProtocol { - return &protocol{stack: s} -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/udp_packet_list.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/udp_packet_list.go deleted file mode 100644 index ff855efeca..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/udp_packet_list.go +++ /dev/null @@ -1,239 +0,0 @@ -package udp - -// ElementMapper provides an identity mapping by default. -// -// This can be replaced to provide a struct that maps elements to linker -// objects, if they are not the same. An ElementMapper is not typically -// required if: Linker is left as is, Element is left as is, or Linker and -// Element are the same type. -type udpPacketElementMapper struct{} - -// linkerFor maps an Element to a Linker. -// -// This default implementation should be inlined. -// -//go:nosplit -func (udpPacketElementMapper) linkerFor(elem *udpPacket) *udpPacket { return elem } - -// List is an intrusive list. Entries can be added to or removed from the list -// in O(1) time and with no additional memory allocations. -// -// The zero value for List is an empty list ready to use. -// -// To iterate over a list (where l is a List): -// -// for e := l.Front(); e != nil; e = e.Next() { -// // do something with e. -// } -// -// +stateify savable -type udpPacketList struct { - head *udpPacket - tail *udpPacket -} - -// Reset resets list l to the empty state. -func (l *udpPacketList) Reset() { - l.head = nil - l.tail = nil -} - -// Empty returns true iff the list is empty. -// -//go:nosplit -func (l *udpPacketList) Empty() bool { - return l.head == nil -} - -// Front returns the first element of list l or nil. -// -//go:nosplit -func (l *udpPacketList) Front() *udpPacket { - return l.head -} - -// Back returns the last element of list l or nil. -// -//go:nosplit -func (l *udpPacketList) Back() *udpPacket { - return l.tail -} - -// Len returns the number of elements in the list. -// -// NOTE: This is an O(n) operation. -// -//go:nosplit -func (l *udpPacketList) Len() (count int) { - for e := l.Front(); e != nil; e = (udpPacketElementMapper{}.linkerFor(e)).Next() { - count++ - } - return count -} - -// PushFront inserts the element e at the front of list l. -// -//go:nosplit -func (l *udpPacketList) PushFront(e *udpPacket) { - linker := udpPacketElementMapper{}.linkerFor(e) - linker.SetNext(l.head) - linker.SetPrev(nil) - if l.head != nil { - udpPacketElementMapper{}.linkerFor(l.head).SetPrev(e) - } else { - l.tail = e - } - - l.head = e -} - -// PushFrontList inserts list m at the start of list l, emptying m. -// -//go:nosplit -func (l *udpPacketList) PushFrontList(m *udpPacketList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - udpPacketElementMapper{}.linkerFor(l.head).SetPrev(m.tail) - udpPacketElementMapper{}.linkerFor(m.tail).SetNext(l.head) - - l.head = m.head - } - m.head = nil - m.tail = nil -} - -// PushBack inserts the element e at the back of list l. -// -//go:nosplit -func (l *udpPacketList) PushBack(e *udpPacket) { - linker := udpPacketElementMapper{}.linkerFor(e) - linker.SetNext(nil) - linker.SetPrev(l.tail) - if l.tail != nil { - udpPacketElementMapper{}.linkerFor(l.tail).SetNext(e) - } else { - l.head = e - } - - l.tail = e -} - -// PushBackList inserts list m at the end of list l, emptying m. -// -//go:nosplit -func (l *udpPacketList) PushBackList(m *udpPacketList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - udpPacketElementMapper{}.linkerFor(l.tail).SetNext(m.head) - udpPacketElementMapper{}.linkerFor(m.head).SetPrev(l.tail) - - l.tail = m.tail - } - m.head = nil - m.tail = nil -} - -// InsertAfter inserts e after b. -// -//go:nosplit -func (l *udpPacketList) InsertAfter(b, e *udpPacket) { - bLinker := udpPacketElementMapper{}.linkerFor(b) - eLinker := udpPacketElementMapper{}.linkerFor(e) - - a := bLinker.Next() - - eLinker.SetNext(a) - eLinker.SetPrev(b) - bLinker.SetNext(e) - - if a != nil { - udpPacketElementMapper{}.linkerFor(a).SetPrev(e) - } else { - l.tail = e - } -} - -// InsertBefore inserts e before a. -// -//go:nosplit -func (l *udpPacketList) InsertBefore(a, e *udpPacket) { - aLinker := udpPacketElementMapper{}.linkerFor(a) - eLinker := udpPacketElementMapper{}.linkerFor(e) - - b := aLinker.Prev() - eLinker.SetNext(a) - eLinker.SetPrev(b) - aLinker.SetPrev(e) - - if b != nil { - udpPacketElementMapper{}.linkerFor(b).SetNext(e) - } else { - l.head = e - } -} - -// Remove removes e from l. -// -//go:nosplit -func (l *udpPacketList) Remove(e *udpPacket) { - linker := udpPacketElementMapper{}.linkerFor(e) - prev := linker.Prev() - next := linker.Next() - - if prev != nil { - udpPacketElementMapper{}.linkerFor(prev).SetNext(next) - } else if l.head == e { - l.head = next - } - - if next != nil { - udpPacketElementMapper{}.linkerFor(next).SetPrev(prev) - } else if l.tail == e { - l.tail = prev - } - - linker.SetNext(nil) - linker.SetPrev(nil) -} - -// Entry is a default implementation of Linker. Users can add anonymous fields -// of this type to their structs to make them automatically implement the -// methods needed by List. -// -// +stateify savable -type udpPacketEntry struct { - next *udpPacket - prev *udpPacket -} - -// Next returns the entry that follows e in the list. -// -//go:nosplit -func (e *udpPacketEntry) Next() *udpPacket { - return e.next -} - -// Prev returns the entry that precedes e in the list. -// -//go:nosplit -func (e *udpPacketEntry) Prev() *udpPacket { - return e.prev -} - -// SetNext assigns 'entry' as the entry that follows e in the list. -// -//go:nosplit -func (e *udpPacketEntry) SetNext(elem *udpPacket) { - e.next = elem -} - -// SetPrev assigns 'entry' as the entry that precedes e in the list. -// -//go:nosplit -func (e *udpPacketEntry) SetPrev(elem *udpPacket) { - e.prev = elem -} diff --git a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/udp_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/udp_state_autogen.go deleted file mode 100644 index e10d21cd41..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/tcpip/transport/udp/udp_state_autogen.go +++ /dev/null @@ -1,222 +0,0 @@ -// automatically generated by stateify. - -package udp - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (p *udpPacket) StateTypeName() string { - return "pkg/tcpip/transport/udp.udpPacket" -} - -func (p *udpPacket) StateFields() []string { - return []string{ - "udpPacketEntry", - "netProto", - "senderAddress", - "destinationAddress", - "packetInfo", - "pkt", - "receivedAt", - "tosOrTClass", - "ttlOrHopLimit", - } -} - -func (p *udpPacket) beforeSave() {} - -// +checklocksignore -func (p *udpPacket) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - var receivedAtValue int64 - receivedAtValue = p.saveReceivedAt() - stateSinkObject.SaveValue(6, receivedAtValue) - stateSinkObject.Save(0, &p.udpPacketEntry) - stateSinkObject.Save(1, &p.netProto) - stateSinkObject.Save(2, &p.senderAddress) - stateSinkObject.Save(3, &p.destinationAddress) - stateSinkObject.Save(4, &p.packetInfo) - stateSinkObject.Save(5, &p.pkt) - stateSinkObject.Save(7, &p.tosOrTClass) - stateSinkObject.Save(8, &p.ttlOrHopLimit) -} - -func (p *udpPacket) afterLoad(context.Context) {} - -// +checklocksignore -func (p *udpPacket) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.udpPacketEntry) - stateSourceObject.Load(1, &p.netProto) - stateSourceObject.Load(2, &p.senderAddress) - stateSourceObject.Load(3, &p.destinationAddress) - stateSourceObject.Load(4, &p.packetInfo) - stateSourceObject.Load(5, &p.pkt) - stateSourceObject.Load(7, &p.tosOrTClass) - stateSourceObject.Load(8, &p.ttlOrHopLimit) - stateSourceObject.LoadValue(6, new(int64), func(y any) { p.loadReceivedAt(ctx, y.(int64)) }) -} - -func (e *endpoint) StateTypeName() string { - return "pkg/tcpip/transport/udp.endpoint" -} - -func (e *endpoint) StateFields() []string { - return []string{ - "DefaultSocketOptionsHandler", - "waiterQueue", - "net", - "stats", - "ops", - "rcvReady", - "rcvList", - "rcvBufSize", - "rcvClosed", - "lastError", - "portFlags", - "boundBindToDevice", - "boundPortFlags", - "readShutdown", - "effectiveNetProtos", - "frozen", - "localPort", - "remotePort", - } -} - -// +checklocksignore -func (e *endpoint) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.DefaultSocketOptionsHandler) - stateSinkObject.Save(1, &e.waiterQueue) - stateSinkObject.Save(2, &e.net) - stateSinkObject.Save(3, &e.stats) - stateSinkObject.Save(4, &e.ops) - stateSinkObject.Save(5, &e.rcvReady) - stateSinkObject.Save(6, &e.rcvList) - stateSinkObject.Save(7, &e.rcvBufSize) - stateSinkObject.Save(8, &e.rcvClosed) - stateSinkObject.Save(9, &e.lastError) - stateSinkObject.Save(10, &e.portFlags) - stateSinkObject.Save(11, &e.boundBindToDevice) - stateSinkObject.Save(12, &e.boundPortFlags) - stateSinkObject.Save(13, &e.readShutdown) - stateSinkObject.Save(14, &e.effectiveNetProtos) - stateSinkObject.Save(15, &e.frozen) - stateSinkObject.Save(16, &e.localPort) - stateSinkObject.Save(17, &e.remotePort) -} - -// +checklocksignore -func (e *endpoint) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.DefaultSocketOptionsHandler) - stateSourceObject.Load(1, &e.waiterQueue) - stateSourceObject.Load(2, &e.net) - stateSourceObject.Load(3, &e.stats) - stateSourceObject.Load(4, &e.ops) - stateSourceObject.Load(5, &e.rcvReady) - stateSourceObject.Load(6, &e.rcvList) - stateSourceObject.Load(7, &e.rcvBufSize) - stateSourceObject.Load(8, &e.rcvClosed) - stateSourceObject.Load(9, &e.lastError) - stateSourceObject.Load(10, &e.portFlags) - stateSourceObject.Load(11, &e.boundBindToDevice) - stateSourceObject.Load(12, &e.boundPortFlags) - stateSourceObject.Load(13, &e.readShutdown) - stateSourceObject.Load(14, &e.effectiveNetProtos) - stateSourceObject.Load(15, &e.frozen) - stateSourceObject.Load(16, &e.localPort) - stateSourceObject.Load(17, &e.remotePort) - stateSourceObject.AfterLoad(func() { e.afterLoad(ctx) }) -} - -func (p *protocol) StateTypeName() string { - return "pkg/tcpip/transport/udp.protocol" -} - -func (p *protocol) StateFields() []string { - return []string{ - "stack", - } -} - -func (p *protocol) beforeSave() {} - -// +checklocksignore -func (p *protocol) StateSave(stateSinkObject state.Sink) { - p.beforeSave() - stateSinkObject.Save(0, &p.stack) -} - -func (p *protocol) afterLoad(context.Context) {} - -// +checklocksignore -func (p *protocol) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &p.stack) -} - -func (l *udpPacketList) StateTypeName() string { - return "pkg/tcpip/transport/udp.udpPacketList" -} - -func (l *udpPacketList) StateFields() []string { - return []string{ - "head", - "tail", - } -} - -func (l *udpPacketList) beforeSave() {} - -// +checklocksignore -func (l *udpPacketList) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.head) - stateSinkObject.Save(1, &l.tail) -} - -func (l *udpPacketList) afterLoad(context.Context) {} - -// +checklocksignore -func (l *udpPacketList) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.head) - stateSourceObject.Load(1, &l.tail) -} - -func (e *udpPacketEntry) StateTypeName() string { - return "pkg/tcpip/transport/udp.udpPacketEntry" -} - -func (e *udpPacketEntry) StateFields() []string { - return []string{ - "next", - "prev", - } -} - -func (e *udpPacketEntry) beforeSave() {} - -// +checklocksignore -func (e *udpPacketEntry) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.next) - stateSinkObject.Save(1, &e.prev) -} - -func (e *udpPacketEntry) afterLoad(context.Context) {} - -// +checklocksignore -func (e *udpPacketEntry) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.next) - stateSourceObject.Load(1, &e.prev) -} - -func init() { - state.Register((*udpPacket)(nil)) - state.Register((*endpoint)(nil)) - state.Register((*protocol)(nil)) - state.Register((*udpPacketList)(nil)) - state.Register((*udpPacketEntry)(nil)) -} diff --git a/vendor/gvisor.dev/gvisor/pkg/waiter/waiter.go b/vendor/gvisor.dev/gvisor/pkg/waiter/waiter.go deleted file mode 100644 index 1b47ae1b72..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/waiter/waiter.go +++ /dev/null @@ -1,303 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Package waiter provides the implementation of a wait queue, where waiters can -// be enqueued to be notified when an event of interest happens. -// -// Becoming readable and/or writable are examples of events. Waiters are -// expected to use a pattern similar to this to make a blocking function out of -// a non-blocking one: -// -// func (o *object) blockingRead(...) error { -// err := o.nonBlockingRead(...) -// if err != ErrAgain { -// // Completed with no need to wait! -// return err -// } -// -// e := createOrGetWaiterEntry(...) -// o.EventRegister(&e, waiter.EventIn) -// defer o.EventUnregister(&e) -// -// // We need to try to read again after registration because the -// // object may have become readable between the last attempt to -// // read and read registration. -// err = o.nonBlockingRead(...) -// for err == ErrAgain { -// wait() -// err = o.nonBlockingRead(...) -// } -// -// return err -// } -// -// Another goroutine needs to notify waiters when events happen. For example: -// -// func (o *object) Write(...) ... { -// // Do write work. -// [...] -// -// if oldDataAvailableSize == 0 && dataAvailableSize > 0 { -// // If no data was available and now some data is -// // available, the object became readable, so notify -// // potential waiters about this. -// o.Notify(waiter.EventIn) -// } -// } -package waiter - -import ( - "gvisor.dev/gvisor/pkg/sync" -) - -// EventMask represents io events as used in the poll() syscall. -type EventMask uint64 - -// Events that waiters can wait on. The meaning is the same as those in the -// poll() syscall. -const ( - EventIn EventMask = 0x01 // POLLIN - EventPri EventMask = 0x02 // POLLPRI - EventOut EventMask = 0x04 // POLLOUT - EventErr EventMask = 0x08 // POLLERR - EventHUp EventMask = 0x10 // POLLHUP - EventRdNorm EventMask = 0x0040 // POLLRDNORM - EventWrNorm EventMask = 0x0100 // POLLWRNORM - EventInternal EventMask = 0x1000 - EventRdHUp EventMask = 0x2000 // POLLRDHUP - - AllEvents EventMask = 0x1f | EventRdNorm | EventWrNorm | EventRdHUp - ReadableEvents EventMask = EventIn | EventRdNorm - WritableEvents EventMask = EventOut | EventWrNorm -) - -// EventMaskFromLinux returns an EventMask representing the supported events -// from the Linux events e, which is in the format used by poll(2). -func EventMaskFromLinux(e uint32) EventMask { - // Our flag definitions are currently identical to Linux. - return EventMask(e) & AllEvents -} - -// ToLinux returns e in the format used by Linux poll(2). -func (e EventMask) ToLinux() uint32 { - // Our flag definitions are currently identical to Linux. - return uint32(e) -} - -// Waitable contains the methods that need to be implemented by waitable -// objects. -type Waitable interface { - // Readiness returns what the object is currently ready for. If it's - // not ready for a desired purpose, the caller may use EventRegister and - // EventUnregister to get notifications once the object becomes ready. - // - // Implementations should allow for events like EventHUp and EventErr - // to be returned regardless of whether they are in the input EventMask. - Readiness(mask EventMask) EventMask - - // EventRegister registers the given waiter entry to receive - // notifications when an event occurs that makes the object ready for - // at least one of the events in mask. - EventRegister(e *Entry) error - - // EventUnregister unregisters a waiter entry previously registered with - // EventRegister(). - EventUnregister(e *Entry) -} - -// EventListener provides a notify callback. -type EventListener interface { - // NotifyEvent is the function to be called when the waiter entry is - // notified. It is responsible for doing whatever is needed to wake up - // the waiter. - // - // The callback is supposed to perform minimal work, and cannot call - // any method on the queue itself because it will be locked while the - // callback is running. - // - // The mask indicates the events that occurred and that the entry is - // interested in. - NotifyEvent(mask EventMask) -} - -// Entry represents a waiter that can be add to the a wait queue. It can -// only be in one queue at a time, and is added "intrusively" to the queue with -// no extra memory allocations. -// -// +stateify savable -type Entry struct { - waiterEntry - - // eventListener receives the notification. - eventListener EventListener - - // mask should be immutable once queued. - mask EventMask -} - -// Init initializes the Entry. -// -// This must only be called when unregistered. -func (e *Entry) Init(eventListener EventListener, mask EventMask) { - e.eventListener = eventListener - e.mask = mask -} - -// Mask returns the entry mask. -func (e *Entry) Mask() EventMask { - return e.mask -} - -// NotifyEvent notifies the event listener. -// -// Mask should be the full set of active events. -func (e *Entry) NotifyEvent(mask EventMask) { - if m := mask & e.mask; m != 0 { - e.eventListener.NotifyEvent(m) - } -} - -// ChannelNotifier is a simple channel-based notification. -type ChannelNotifier chan struct{} - -// NotifyEvent implements waiter.EventListener.NotifyEvent. -func (c ChannelNotifier) NotifyEvent(EventMask) { - select { - case c <- struct{}{}: - default: - } -} - -// NewChannelEntry initializes a new Entry that does a non-blocking write to a -// struct{} channel when the callback is called. It returns the new Entry -// instance and the channel being used. -func NewChannelEntry(mask EventMask) (e Entry, ch chan struct{}) { - ch = make(chan struct{}, 1) - e.Init(ChannelNotifier(ch), mask) - return e, ch -} - -type functionNotifier func(EventMask) - -// NotifyEvent implements waiter.EventListener.NotifyEvent. -func (f functionNotifier) NotifyEvent(mask EventMask) { - f(mask) -} - -// NewFunctionEntry initializes a new Entry that calls the given function. -func NewFunctionEntry(mask EventMask, fn func(EventMask)) (e Entry) { - e.Init(functionNotifier(fn), mask) - return e -} - -// Queue represents the wait queue where waiters can be added and -// notifiers can notify them when events happen. -// -// The zero value for waiter.Queue is an empty queue ready for use. -// -// +stateify savable -type Queue struct { - list waiterList - mu sync.RWMutex `state:"nosave"` -} - -// EventRegister adds a waiter to the wait queue. -func (q *Queue) EventRegister(e *Entry) { - q.mu.Lock() - q.list.PushBack(e) - q.mu.Unlock() -} - -// EventUnregister removes the given waiter entry from the wait queue. -func (q *Queue) EventUnregister(e *Entry) { - q.mu.Lock() - q.list.Remove(e) - q.mu.Unlock() -} - -// Notify notifies all waiters in the queue whose masks have at least one bit -// in common with the notification mask. -func (q *Queue) Notify(mask EventMask) { - q.mu.RLock() - for e := q.list.Front(); e != nil; e = e.Next() { - m := mask & e.mask - if m == 0 { - continue - } - e.eventListener.NotifyEvent(m) // Skip intermediate call. - } - q.mu.RUnlock() -} - -// Events returns the set of events being waited on. It is the union of the -// masks of all registered entries. -func (q *Queue) Events() EventMask { - q.mu.RLock() - defer q.mu.RUnlock() - ret := EventMask(0) - for e := q.list.Front(); e != nil; e = e.Next() { - ret |= e.mask - } - return ret -} - -// IsEmpty returns if the wait queue is empty or not. -func (q *Queue) IsEmpty() bool { - q.mu.RLock() - defer q.mu.RUnlock() - return q.list.Front() == nil -} - -// AlwaysReady implements the Waitable interface but is always ready. Embedding -// this struct into another struct makes it implement the boilerplate empty -// functions automatically. -type AlwaysReady struct { -} - -// Readiness always returns the input mask because this object is always ready. -func (*AlwaysReady) Readiness(mask EventMask) EventMask { - return mask -} - -// EventRegister doesn't do anything because this object doesn't need to issue -// notifications because its readiness never changes. -func (*AlwaysReady) EventRegister(*Entry) error { - return nil -} - -// EventUnregister doesn't do anything because this object doesn't need to issue -// notifications because its readiness never changes. -func (*AlwaysReady) EventUnregister(e *Entry) { -} - -// NeverReady implements the Waitable interface but is never ready. Otherwise, -// this is exactly the same as AlwaysReady. -type NeverReady struct { -} - -// Readiness always returns the input mask because this object is always ready. -func (*NeverReady) Readiness(mask EventMask) EventMask { - return mask -} - -// EventRegister doesn't do anything because this object doesn't need to issue -// notifications because its readiness never changes. -func (*NeverReady) EventRegister(e *Entry) error { - return nil -} - -// EventUnregister doesn't do anything because this object doesn't need to issue -// notifications because its readiness never changes. -func (*NeverReady) EventUnregister(e *Entry) { -} diff --git a/vendor/gvisor.dev/gvisor/pkg/waiter/waiter_list.go b/vendor/gvisor.dev/gvisor/pkg/waiter/waiter_list.go deleted file mode 100644 index f2e2193c91..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/waiter/waiter_list.go +++ /dev/null @@ -1,239 +0,0 @@ -package waiter - -// ElementMapper provides an identity mapping by default. -// -// This can be replaced to provide a struct that maps elements to linker -// objects, if they are not the same. An ElementMapper is not typically -// required if: Linker is left as is, Element is left as is, or Linker and -// Element are the same type. -type waiterElementMapper struct{} - -// linkerFor maps an Element to a Linker. -// -// This default implementation should be inlined. -// -//go:nosplit -func (waiterElementMapper) linkerFor(elem *Entry) *Entry { return elem } - -// List is an intrusive list. Entries can be added to or removed from the list -// in O(1) time and with no additional memory allocations. -// -// The zero value for List is an empty list ready to use. -// -// To iterate over a list (where l is a List): -// -// for e := l.Front(); e != nil; e = e.Next() { -// // do something with e. -// } -// -// +stateify savable -type waiterList struct { - head *Entry - tail *Entry -} - -// Reset resets list l to the empty state. -func (l *waiterList) Reset() { - l.head = nil - l.tail = nil -} - -// Empty returns true iff the list is empty. -// -//go:nosplit -func (l *waiterList) Empty() bool { - return l.head == nil -} - -// Front returns the first element of list l or nil. -// -//go:nosplit -func (l *waiterList) Front() *Entry { - return l.head -} - -// Back returns the last element of list l or nil. -// -//go:nosplit -func (l *waiterList) Back() *Entry { - return l.tail -} - -// Len returns the number of elements in the list. -// -// NOTE: This is an O(n) operation. -// -//go:nosplit -func (l *waiterList) Len() (count int) { - for e := l.Front(); e != nil; e = (waiterElementMapper{}.linkerFor(e)).Next() { - count++ - } - return count -} - -// PushFront inserts the element e at the front of list l. -// -//go:nosplit -func (l *waiterList) PushFront(e *Entry) { - linker := waiterElementMapper{}.linkerFor(e) - linker.SetNext(l.head) - linker.SetPrev(nil) - if l.head != nil { - waiterElementMapper{}.linkerFor(l.head).SetPrev(e) - } else { - l.tail = e - } - - l.head = e -} - -// PushFrontList inserts list m at the start of list l, emptying m. -// -//go:nosplit -func (l *waiterList) PushFrontList(m *waiterList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - waiterElementMapper{}.linkerFor(l.head).SetPrev(m.tail) - waiterElementMapper{}.linkerFor(m.tail).SetNext(l.head) - - l.head = m.head - } - m.head = nil - m.tail = nil -} - -// PushBack inserts the element e at the back of list l. -// -//go:nosplit -func (l *waiterList) PushBack(e *Entry) { - linker := waiterElementMapper{}.linkerFor(e) - linker.SetNext(nil) - linker.SetPrev(l.tail) - if l.tail != nil { - waiterElementMapper{}.linkerFor(l.tail).SetNext(e) - } else { - l.head = e - } - - l.tail = e -} - -// PushBackList inserts list m at the end of list l, emptying m. -// -//go:nosplit -func (l *waiterList) PushBackList(m *waiterList) { - if l.head == nil { - l.head = m.head - l.tail = m.tail - } else if m.head != nil { - waiterElementMapper{}.linkerFor(l.tail).SetNext(m.head) - waiterElementMapper{}.linkerFor(m.head).SetPrev(l.tail) - - l.tail = m.tail - } - m.head = nil - m.tail = nil -} - -// InsertAfter inserts e after b. -// -//go:nosplit -func (l *waiterList) InsertAfter(b, e *Entry) { - bLinker := waiterElementMapper{}.linkerFor(b) - eLinker := waiterElementMapper{}.linkerFor(e) - - a := bLinker.Next() - - eLinker.SetNext(a) - eLinker.SetPrev(b) - bLinker.SetNext(e) - - if a != nil { - waiterElementMapper{}.linkerFor(a).SetPrev(e) - } else { - l.tail = e - } -} - -// InsertBefore inserts e before a. -// -//go:nosplit -func (l *waiterList) InsertBefore(a, e *Entry) { - aLinker := waiterElementMapper{}.linkerFor(a) - eLinker := waiterElementMapper{}.linkerFor(e) - - b := aLinker.Prev() - eLinker.SetNext(a) - eLinker.SetPrev(b) - aLinker.SetPrev(e) - - if b != nil { - waiterElementMapper{}.linkerFor(b).SetNext(e) - } else { - l.head = e - } -} - -// Remove removes e from l. -// -//go:nosplit -func (l *waiterList) Remove(e *Entry) { - linker := waiterElementMapper{}.linkerFor(e) - prev := linker.Prev() - next := linker.Next() - - if prev != nil { - waiterElementMapper{}.linkerFor(prev).SetNext(next) - } else if l.head == e { - l.head = next - } - - if next != nil { - waiterElementMapper{}.linkerFor(next).SetPrev(prev) - } else if l.tail == e { - l.tail = prev - } - - linker.SetNext(nil) - linker.SetPrev(nil) -} - -// Entry is a default implementation of Linker. Users can add anonymous fields -// of this type to their structs to make them automatically implement the -// methods needed by List. -// -// +stateify savable -type waiterEntry struct { - next *Entry - prev *Entry -} - -// Next returns the entry that follows e in the list. -// -//go:nosplit -func (e *waiterEntry) Next() *Entry { - return e.next -} - -// Prev returns the entry that precedes e in the list. -// -//go:nosplit -func (e *waiterEntry) Prev() *Entry { - return e.prev -} - -// SetNext assigns 'entry' as the entry that follows e in the list. -// -//go:nosplit -func (e *waiterEntry) SetNext(elem *Entry) { - e.next = elem -} - -// SetPrev assigns 'entry' as the entry that precedes e in the list. -// -//go:nosplit -func (e *waiterEntry) SetPrev(elem *Entry) { - e.prev = elem -} diff --git a/vendor/gvisor.dev/gvisor/pkg/waiter/waiter_state_autogen.go b/vendor/gvisor.dev/gvisor/pkg/waiter/waiter_state_autogen.go deleted file mode 100644 index 91d35041c9..0000000000 --- a/vendor/gvisor.dev/gvisor/pkg/waiter/waiter_state_autogen.go +++ /dev/null @@ -1,128 +0,0 @@ -// automatically generated by stateify. - -package waiter - -import ( - "context" - - "gvisor.dev/gvisor/pkg/state" -) - -func (e *Entry) StateTypeName() string { - return "pkg/waiter.Entry" -} - -func (e *Entry) StateFields() []string { - return []string{ - "waiterEntry", - "eventListener", - "mask", - } -} - -func (e *Entry) beforeSave() {} - -// +checklocksignore -func (e *Entry) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.waiterEntry) - stateSinkObject.Save(1, &e.eventListener) - stateSinkObject.Save(2, &e.mask) -} - -func (e *Entry) afterLoad(context.Context) {} - -// +checklocksignore -func (e *Entry) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.waiterEntry) - stateSourceObject.Load(1, &e.eventListener) - stateSourceObject.Load(2, &e.mask) -} - -func (q *Queue) StateTypeName() string { - return "pkg/waiter.Queue" -} - -func (q *Queue) StateFields() []string { - return []string{ - "list", - } -} - -func (q *Queue) beforeSave() {} - -// +checklocksignore -func (q *Queue) StateSave(stateSinkObject state.Sink) { - q.beforeSave() - stateSinkObject.Save(0, &q.list) -} - -func (q *Queue) afterLoad(context.Context) {} - -// +checklocksignore -func (q *Queue) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &q.list) -} - -func (l *waiterList) StateTypeName() string { - return "pkg/waiter.waiterList" -} - -func (l *waiterList) StateFields() []string { - return []string{ - "head", - "tail", - } -} - -func (l *waiterList) beforeSave() {} - -// +checklocksignore -func (l *waiterList) StateSave(stateSinkObject state.Sink) { - l.beforeSave() - stateSinkObject.Save(0, &l.head) - stateSinkObject.Save(1, &l.tail) -} - -func (l *waiterList) afterLoad(context.Context) {} - -// +checklocksignore -func (l *waiterList) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &l.head) - stateSourceObject.Load(1, &l.tail) -} - -func (e *waiterEntry) StateTypeName() string { - return "pkg/waiter.waiterEntry" -} - -func (e *waiterEntry) StateFields() []string { - return []string{ - "next", - "prev", - } -} - -func (e *waiterEntry) beforeSave() {} - -// +checklocksignore -func (e *waiterEntry) StateSave(stateSinkObject state.Sink) { - e.beforeSave() - stateSinkObject.Save(0, &e.next) - stateSinkObject.Save(1, &e.prev) -} - -func (e *waiterEntry) afterLoad(context.Context) {} - -// +checklocksignore -func (e *waiterEntry) StateLoad(ctx context.Context, stateSourceObject state.Source) { - stateSourceObject.Load(0, &e.next) - stateSourceObject.Load(1, &e.prev) -} - -func init() { - state.Register((*Entry)(nil)) - state.Register((*Queue)(nil)) - state.Register((*waiterList)(nil)) - state.Register((*waiterEntry)(nil)) -} diff --git a/vendor/libvirt.org/go/libvirtxml/.gitignore b/vendor/libvirt.org/go/libvirtxml/.gitignore deleted file mode 100644 index 6632312560..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/.gitignore +++ /dev/null @@ -1,4 +0,0 @@ -*~ -*.bak -.\#* -testdata/ diff --git a/vendor/libvirt.org/go/libvirtxml/.gitlab-ci.yml b/vendor/libvirt.org/go/libvirtxml/.gitlab-ci.yml deleted file mode 100644 index 3de6046aac..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/.gitlab-ci.yml +++ /dev/null @@ -1,43 +0,0 @@ - -stages: - - prebuild - - build - -# Check that all commits are signed-off for the DCO. -# Skip on "libvirt" namespace, since we only need to run -# this test on developer's personal forks from which -# merge requests are submitted -check-dco: - stage: prebuild - image: registry.gitlab.com/libvirt/libvirt-ci/check-dco:latest - script: - - /check-dco - except: - variables: - - $CI_PROJECT_NAMESPACE == 'libvirt' - -go-fmt: - stage: prebuild - image: registry.gitlab.com/libvirt/libvirt-ci/go-fmt:latest - script: - - /go-fmt - artifacts: - paths: - - go-fmt.patch - expire_in: 1 week - when: on_failure - -.go_build: &go_build - stage: build - script: - - apk add git - - go test -timeout 10m -tags xmlroundtrip -v - - -go_1_11: - <<: *go_build - image: golang:1.11-alpine - -go_1_24: - <<: *go_build - image: golang:1.16-alpine diff --git a/vendor/libvirt.org/go/libvirtxml/.gitmodules b/vendor/libvirt.org/go/libvirtxml/.gitmodules deleted file mode 100644 index e69de29bb2..0000000000 diff --git a/vendor/libvirt.org/go/libvirtxml/CONTRIBUTING.rst b/vendor/libvirt.org/go/libvirtxml/CONTRIBUTING.rst deleted file mode 100644 index ee3a2fcfcf..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/CONTRIBUTING.rst +++ /dev/null @@ -1,28 +0,0 @@ -===================================== -Contributing to libvirt-go-xml-module -===================================== - -The libvirt Go API binding accepts code contributions via merge requests -on the GitLab project: - -https://gitlab.com/libvirt/libvirt-go-xml-module/-/merge_requests - -It is required that automated CI pipelines succeed before a merge request -will be accepted. The global pipeline status for the ``master`` branch is -visible at: - -https://gitlab.com/libvirt/libvirt-go-xml-module/pipelines - -CI pipeline results for merge requests will be visible via the contributors' -own private repository fork: - -https://gitlab.com/yourusername/libvirt-go-xml-module/pipelines - -Contributions submitted to the project must be in compliance with the -Developer Certificate of Origin Version 1.1. This is documented at: - -https://developercertificate.org/ - -To indicate compliance, each commit in a series must have a "Signed-off-by" -tag with the submitter's name and email address. This can be added by passing -the ``-s`` flag to ``git commit`` when creating the patches. diff --git a/vendor/libvirt.org/go/libvirtxml/LICENSE b/vendor/libvirt.org/go/libvirtxml/LICENSE deleted file mode 100644 index 8e49eed08f..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/LICENSE +++ /dev/null @@ -1,19 +0,0 @@ -The MIT License - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -THE SOFTWARE. \ No newline at end of file diff --git a/vendor/libvirt.org/go/libvirtxml/README.rst b/vendor/libvirt.org/go/libvirtxml/README.rst deleted file mode 100644 index d53e9308d4..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/README.rst +++ /dev/null @@ -1,61 +0,0 @@ -===================== -libvirt-go-xml-module -===================== - -.. image:: https://gitlab.com/libvirt/libvirt-go-xml-module/badges/master/pipeline.svg - :target: https://gitlab.com/libvirt/libvirt-go-xml-module/pipelines - :alt: Build Status -.. image:: https://img.shields.io/static/v1?label=godev&message=reference&color=00add8 - :target: https://pkg.go.dev/libvirt.org/go/libvirtxml - :alt: API Documentation - -Go API for manipulating libvirt XML documents - -This package provides a Go API that defines a set of structs, annotated for use -with "encoding/xml", that can represent libvirt XML documents. There is no -dependency on the libvirt library itself, so this can be used regardless of -the way in which the application talks to libvirt. - - -Development status -================== - -This API is considered to be production ready; note however that, -while unnecessary changes will be avoided, there are overall no -strong stability guarantees. - -Please see the `VERSIONING `_ file for information -about release schedule and versioning scheme. - - -Documentation -============= - -* `API documentation for the bindings `_ - -* `Libvirt XML schema documentation `_ - - * `capabilities `_ - * `domain `_ - * `domain capabilities `_ - * `domain snapshot `_ - * `network `_ - * `node device `_ - * `nwfilter `_ - * `secret `_ - * `storage `_ - * `storage encryption `_ - - -Contributing -============ - -The libvirt project aims to add support for new XML elements to -libvirt-go-xml-module as soon as they are added to the main libvirt C -library. If you are submitting changes to the libvirt C library -that introduce new XML elements, please submit a libvirt-go-xml-module -change at the same time. Bug fixes and other improvements to the -libvirt-go-xml-module library are welcome at any time. - -For more information, see the `CONTRIBUTING `_ -file. diff --git a/vendor/libvirt.org/go/libvirtxml/VERSIONING.rst b/vendor/libvirt.org/go/libvirtxml/VERSIONING.rst deleted file mode 100644 index f8030fe3ee..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/VERSIONING.rst +++ /dev/null @@ -1,68 +0,0 @@ -================================================ -Versioning information for libvirt-go-xml-module -================================================ - -Release schedule -================ - -The XML manipulation library follows the same `release schedule`_ as -the main C library, with new releases of both usually being tagged at -the same time. - -.. _release schedule: https://libvirt.org/downloads.html#schedule - - -Versioning scheme -================= - -Despite the release schedule being the same, the XML manipulation -library do **not** follow the same `versioning scheme`_ as the main C -library. - -The XML manipulation library has adopted `semantic versioning`_, -which is both expected in the Go ecosystem and extremly important in -order to work correctly within the Go module system. - -When it's time to tag a new release, the logic described below is -followed: in this example, we will assume that the most recent -release of the XML manipulation library is ``v0.7005.0`` (made along -libvirt 7.5.0) and that libvirt 7.6.0 has just been tagged. - -* if libvirt 7.6.0 introduces changes to the XML schema - - * make sure the XML manipulation library is aware of them and tag - the result as ``v0.7006.0`` - -* if libvirt 7.6.0 doesn't introduce changes to the XML schema - - * if there have been other tweaks and changes to the XML - manipulation library since ``v0.7005.0`` - - * tag the current code as ``v0.7005.1`` - - * if the XML manipulation library is completely unchanged from - ``v0.7005.0`` - - * do nothing - -This versioning scheme has the following desirable properties: - -* it complies with the semantic versioning specification; - -* it contains an encoded version of the libvirt XML schema it - implements, making it easy to tell at a glance whether or not the - libvirt functionality you're interested in will be available to - your Go application; - -* it removes the need for users to update their import paths once per - year even though the XML manipulation library has retained complete - backwards compatibility; - -* it avoids the situation where a new version of the XML manipulation - library is tagged even though it contains no actual changes, as - well as the opposite scenario where fixes made to the XML - manipulation library cannot make it into a release until the C - library introduces a new XML element or attribute. - -.. _versioning scheme: https://libvirt.org/downloads.html#numbering -.. _semantic versioning: https://semver.org/ diff --git a/vendor/libvirt.org/go/libvirtxml/capabilities.go b/vendor/libvirt.org/go/libvirtxml/capabilities.go deleted file mode 100644 index 20d131edf0..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/capabilities.go +++ /dev/null @@ -1,411 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2016 Red Hat, Inc. - * - */ - -package libvirtxml - -import ( - "encoding/xml" -) - -type CapsHostCPUTopology struct { - Sockets int `xml:"sockets,attr"` - Dies int `xml:"dies,attr,omitempty"` - Clusters int `xml:"clusters,attr,omitempty"` - Cores int `xml:"cores,attr"` - Threads int `xml:"threads,attr"` -} - -type CapsHostCPUFeatureFlag struct { - Name string `xml:"name,attr"` -} - -type CapsHostCPUPageSize struct { - Size int `xml:"size,attr"` - Unit string `xml:"unit,attr"` -} - -type CapsHostCPUMicrocode struct { - Version int `xml:"version,attr"` -} - -type CapsHostCPUSignature struct { - Family int `xml:"family,attr"` - Model int `xml:"model,attr"` - Stepping int `xml:"stepping,attr"` -} - -type CapsHostCPUCounter struct { - Name string `xml:"name,attr"` - Frequency uint `xml:"frequency,attr"` - Scaling string `xml:"scaling,attr,omitempty"` -} - -type CapsHostCPUCache struct { - Level *uint `xml:"level,attr,omitempty"` - Mode string `xml:"mode,attr"` -} - -type CapsHostCPUMaxPhysAddr struct { - Mode string `xml:"mode,attr"` - Bits uint `xml:"bits,attr,omitempty"` -} - -type CapsHostCPU struct { - XMLName xml.Name `xml:"cpu"` - Arch string `xml:"arch,omitempty"` - Model string `xml:"model,omitempty"` - Vendor string `xml:"vendor,omitempty"` - Microcode *CapsHostCPUMicrocode `xml:"microcode"` - Signature *CapsHostCPUSignature `xml:"signature"` - Counter *CapsHostCPUCounter `xml:"counter"` - Topology *CapsHostCPUTopology `xml:"topology"` - Cache *CapsHostCPUCache `xml:"cache"` - MaxPhysAddr *CapsHostCPUMaxPhysAddr `xml:"maxphysaddr"` - FeatureFlags []CapsHostCPUFeatureFlag `xml:"feature"` - Features *CapsHostCPUFeatures `xml:"features"` - PageSizes []CapsHostCPUPageSize `xml:"pages"` -} - -type CapsHostCPUFeature struct { -} - -type CapsHostCPUFeatures struct { - PAE *CapsHostCPUFeature `xml:"pae"` - NonPAE *CapsHostCPUFeature `xml:"nonpae"` - SVM *CapsHostCPUFeature `xml:"svm"` - VMX *CapsHostCPUFeature `xml:"vmx"` -} - -type CapsHostNUMAMemory struct { - Size uint64 `xml:",chardata"` - Unit string `xml:"unit,attr"` -} - -type CapsHostNUMAPageInfo struct { - Size int `xml:"size,attr"` - Unit string `xml:"unit,attr"` - Count uint64 `xml:",chardata"` -} - -type CapsHostNUMACPU struct { - ID int `xml:"id,attr"` - SocketID *int `xml:"socket_id,attr"` - DieID *int `xml:"die_id,attr"` - ClusterID *int `xml:"cluster_id,attr"` - CoreID *int `xml:"core_id,attr"` - Siblings string `xml:"siblings,attr,omitempty"` -} - -type CapsHostNUMASibling struct { - ID int `xml:"id,attr"` - Value int `xml:"value,attr"` -} - -type CapsHostNUMACacheSize struct { - Value uint `xml:"value,attr,omitempty"` - Unit string `xml:"unit,attr,omitempty"` -} - -type CapsHostNUMACacheLine struct { - Value uint `xml:"value,attr,omitempty"` - Unit string `xml:"unit,attr,omitempty"` -} - -type CapsHostNUMACache struct { - Level int `xml:"level,attr,omitempty"` - Associativity string `xml:"associativity,attr,omitempty"` - Policy string `xml:"policy,attr,omitempty"` - Size *CapsHostNUMACacheSize `xml:"size"` - Line *CapsHostNUMACacheLine `xml:"line"` -} - -type CapsHostNUMACell struct { - ID int `xml:"id,attr"` - Memory *CapsHostNUMAMemory `xml:"memory"` - PageInfo []CapsHostNUMAPageInfo `xml:"pages"` - Distances *CapsHostNUMADistances `xml:"distances"` - Cache []CapsHostNUMACache `xml:"cache"` - CPUS *CapsHostNUMACPUs `xml:"cpus"` -} - -type CapsHostNUMADistances struct { - Siblings []CapsHostNUMASibling `xml:"sibling"` -} - -type CapsHostNUMACPUs struct { - Num uint `xml:"num,attr"` - CPUs []CapsHostNUMACPU `xml:"cpu"` -} - -type CapsHostNUMAInterconnects struct { - Latency []CapsHostNUMAInterconnectLatency `xml:"latency"` - Bandwidth []CapsHostNUMAInterconnectBandwidth `xml:"bandwidth"` -} - -type CapsHostNUMAInterconnectLatency struct { - Initiator uint `xml:"initiator,attr"` - Target uint `xml:"target,attr"` - Type string `xml:"type,attr"` - Value uint `xml:"value,attr"` -} - -type CapsHostNUMAInterconnectBandwidth struct { - Initiator uint `xml:"initiator,attr"` - Target uint `xml:"target,attr"` - Type string `xml:"type,attr"` - Value uint `xml:"value,attr"` - Unit string `xml:"unit,attr"` -} - -type CapsHostNUMATopology struct { - Cells *CapsHostNUMACells `xml:"cells"` - Interconnects *CapsHostNUMAInterconnects `xml:"interconnects"` -} - -type CapsHostNUMACells struct { - Num uint `xml:"num,attr,omitempty"` - Cells []CapsHostNUMACell `xml:"cell"` -} - -type CapsHostSecModelLabel struct { - Type string `xml:"type,attr"` - Value string `xml:",chardata"` -} - -type CapsHostSecModel struct { - Name string `xml:"model"` - DOI string `xml:"doi"` - Labels []CapsHostSecModelLabel `xml:"baselabel"` -} - -type CapsHostMigrationFeatures struct { - Live *CapsHostMigrationLive `xml:"live"` - URITransports *CapsHostMigrationURITransports `xml:"uri_transports"` -} - -type CapsHostMigrationLive struct { -} - -type CapsHostMigrationURITransports struct { - URI []string `xml:"uri_transport"` -} - -type CapsHost struct { - UUID string `xml:"uuid,omitempty"` - CPU *CapsHostCPU `xml:"cpu"` - PowerManagement *CapsHostPowerManagement `xml:"power_management"` - IOMMU *CapsHostIOMMU `xml:"iommu"` - MigrationFeatures *CapsHostMigrationFeatures `xml:"migration_features"` - NUMA *CapsHostNUMATopology `xml:"topology"` - Cache *CapsHostCache `xml:"cache"` - MemoryBandwidth *CapsHostMemoryBandwidth `xml:"memory_bandwidth"` - Energy *CapsHostEnergy `xml:"energy"` - SecModel []CapsHostSecModel `xml:"secmodel"` -} - -type CapsHostPowerManagement struct { - SuspendMem *CapsHostPowerManagementMode `xml:"suspend_mem"` - SuspendDisk *CapsHostPowerManagementMode `xml:"suspend_disk"` - SuspendHybrid *CapsHostPowerManagementMode `xml:"suspend_hybrid"` -} - -type CapsHostPowerManagementMode struct { -} - -type CapsHostIOMMU struct { - Support string `xml:"support,attr"` -} - -type CapsHostCache struct { - Banks []CapsHostCacheBank `xml:"bank"` - Monitor *CapsHostCacheMonitor `xml:"monitor"` -} - -type CapsHostCacheBank struct { - ID uint `xml:"id,attr"` - Level uint `xml:"level,attr"` - Type string `xml:"type,attr"` - Size uint `xml:"size,attr"` - Unit string `xml:"unit,attr"` - CPUs string `xml:"cpus,attr"` - Control []CapsHostCacheControl `xml:"control"` -} - -type CapsHostCacheMonitor struct { - Level uint `xml:"level,attr,omitempty"` - ResueThreshold uint `xml:"reuseThreshold,attr,omitempty"` - MaxMonitors uint `xml:"maxMonitors,attr"` - Features []CapsHostCacheMonitorFeature `xml:"feature"` -} - -type CapsHostCacheMonitorFeature struct { - Name string `xml:"name,attr"` -} - -type CapsHostCacheControl struct { - Granularity uint `xml:"granularity,attr"` - Min uint `xml:"min,attr,omitempty"` - Unit string `xml:"unit,attr"` - Type string `xml:"type,attr"` - MaxAllows uint `xml:"maxAllocs,attr"` -} - -type CapsHostMemoryBandwidth struct { - Nodes []CapsHostMemoryBandwidthNode `xml:"node"` - Monitor *CapsHostMemoryBandwidthMonitor `xml:"monitor"` -} - -type CapsHostMemoryBandwidthNode struct { - ID uint `xml:"id,attr"` - CPUs string `xml:"cpus,attr"` - Control *CapsHostMemoryBandwidthNodeControl `xml:"control"` -} - -type CapsHostMemoryBandwidthNodeControl struct { - Granularity uint `xml:"granularity,attr"` - Min uint `xml:"min,attr"` - MaxAllocs uint `xml:"maxAllocs,attr"` -} - -type CapsHostMemoryBandwidthMonitor struct { - MaxMonitors uint `xml:"maxMonitors,attr"` - Features []CapsHostMemoryBandwidthMonitorFeature `xml:"feature"` -} - -type CapsHostMemoryBandwidthMonitorFeature struct { - Name string `xml:"name,attr"` -} - -type CapsHostEnergy struct { - Monitor *CapsHostEnergyMonitor `xml:"monitor"` -} - -type CapsHostEnergyMonitor struct { - MaxMonitors uint `xml:"maxMonitors,attr"` - Features []CapsHostEnergyMonitorFeature `xml:"feature"` -} - -type CapsHostEnergyMonitorFeature struct { - Name string `xml:"name,attr"` -} - -type CapsGuestMachine struct { - Name string `xml:",chardata"` - MaxCPUs int `xml:"maxCpus,attr,omitempty"` - Deprecated string `xml:"deprecated,attr,omitempty"` - Canonical string `xml:"canonical,attr,omitempty"` -} - -type CapsGuestDomain struct { - Type string `xml:"type,attr"` - Emulator string `xml:"emulator,omitempty"` - Machines []CapsGuestMachine `xml:"machine"` -} - -type CapsGuestArch struct { - Name string `xml:"name,attr"` - WordSize string `xml:"wordsize"` - Emulator string `xml:"emulator"` - Loader string `xml:"loader,omitempty"` - Machines []CapsGuestMachine `xml:"machine"` - Domains []CapsGuestDomain `xml:"domain"` -} - -type CapsGuestFeatureCPUSelection struct { -} - -type CapsGuestFeatureDeviceBoot struct { -} - -type CapsGuestFeaturePAE struct { -} - -type CapsGuestFeatureNonPAE struct { -} - -type CapsGuestFeatureDiskSnapshot struct { - Default string `xml:"default,attr,omitempty"` - Toggle string `xml:"toggle,attr,omitempty"` -} - -type CapsGuestFeatureAPIC struct { - Default string `xml:"default,attr,omitempty"` - Toggle string `xml:"toggle,attr,omitempty"` -} - -type CapsGuestFeatureACPI struct { - Default string `xml:"default,attr,omitempty"` - Toggle string `xml:"toggle,attr,omitempty"` -} - -type CapsGuestFeatureIA64BE struct { -} - -type CapsGuestFeatures struct { - CPUSelection *CapsGuestFeatureCPUSelection `xml:"cpuselection"` - DeviceBoot *CapsGuestFeatureDeviceBoot `xml:"deviceboot"` - DiskSnapshot *CapsGuestFeatureDiskSnapshot `xml:"disksnapshot"` - PAE *CapsGuestFeaturePAE `xml:"pae"` - NonPAE *CapsGuestFeatureNonPAE `xml:"nonpae"` - APIC *CapsGuestFeatureAPIC `xml:"apic"` - ACPI *CapsGuestFeatureACPI `xml:"acpi"` - IA64BE *CapsGuestFeatureIA64BE `xml:"ia64_be"` -} - -type CapsGuest struct { - OSType string `xml:"os_type"` - Arch CapsGuestArch `xml:"arch"` - Features *CapsGuestFeatures `xml:"features"` -} - -type Caps struct { - XMLName xml.Name `xml:"capabilities"` - Host CapsHost `xml:"host"` - Guests []CapsGuest `xml:"guest"` -} - -func (c *CapsHostCPU) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), c) -} - -func (c *CapsHostCPU) Marshal() (string, error) { - doc, err := xml.MarshalIndent(c, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (c *Caps) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), c) -} - -func (c *Caps) Marshal() (string, error) { - doc, err := xml.MarshalIndent(c, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} diff --git a/vendor/libvirt.org/go/libvirtxml/doc.go b/vendor/libvirt.org/go/libvirtxml/doc.go deleted file mode 100644 index 3f8a20ea64..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/doc.go +++ /dev/null @@ -1,69 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2017 Red Hat, Inc. - * - */ - -// Package libvirt-go-xml-module defines structs for parsing libvirt XML schemas -// -// The libvirt API uses XML schemas/documents to describe the configuration -// of many of its managed objects. Thus when using the libvirt-go package, -// it is often neccessary to either parse or format XML documents. This -// package defines a set of Go structs which have been annotated for use -// with the encoding/xml API to manage libvirt XML documents. -// -// Example creating a domain XML document from configuration: -// -// package main -// -// import ( -// "libvirt.org/go/libvirtxml" -// ) -// -// func main() { -// domcfg := &libvirtxml.Domain{Type: "kvm", Name: "demo", -// UUID: "8f99e332-06c4-463a-9099-330fb244e1b3", -// ....} -// xmldoc, err := domcfg.Marshal() -// } -// -// Example parsing a domainXML document, in combination with libvirt-go -// -// package main -// -// import ( -// "libvirt.org/go/libvirt" -// "libvirt.org/go/libvirtxml" -// "fmt" -// ) -// -// func main() { -// conn, err := libvirt.NewConnect("qemu:///system") -// dom, err := conn.LookupDomainByName("demo") -// xmldoc, err := dom.GetXMLDesc(0) -// -// domcfg := &libvirtxml.Domain{} -// err = domcfg.Unmarshal(xmldoc) -// -// fmt.Printf("Virt type %s\n", domcfg.Type) -// } -package libvirtxml diff --git a/vendor/libvirt.org/go/libvirtxml/document.go b/vendor/libvirt.org/go/libvirtxml/document.go deleted file mode 100644 index 9b4cf36d85..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/document.go +++ /dev/null @@ -1,6 +0,0 @@ -package libvirtxml - -type Document interface { - Unmarshal(doc string) error - Marshal() (string, error) -} diff --git a/vendor/libvirt.org/go/libvirtxml/domain.go b/vendor/libvirt.org/go/libvirtxml/domain.go deleted file mode 100644 index 48569d942a..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/domain.go +++ /dev/null @@ -1,7669 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2016 Red Hat, Inc. - * - */ - -package libvirtxml - -import ( - "encoding/xml" - "fmt" - "io" - "reflect" - "strconv" - "strings" -) - -type DomainControllerPCIHole64 struct { - Size uint64 `xml:",chardata"` - Unit string `xml:"unit,attr,omitempty"` -} - -type DomainControllerPCIModel struct { - Name string `xml:"name,attr"` -} - -type DomainControllerPCITarget struct { - ChassisNr *uint - Chassis *uint - Port *uint - BusNr *uint - Index *uint - NUMANode *uint - Hotplug string - MemReserve *uint64 -} - -type DomainControllerPCI struct { - Model *DomainControllerPCIModel `xml:"model"` - Target *DomainControllerPCITarget `xml:"target"` - Hole64 *DomainControllerPCIHole64 `xml:"pcihole64"` -} - -type DomainControllerUSBMaster struct { - StartPort uint `xml:"startport,attr"` -} - -type DomainControllerUSB struct { - Port *uint `xml:"ports,attr"` - Master *DomainControllerUSBMaster `xml:"master"` -} - -type DomainControllerVirtIOSerial struct { - Ports *uint `xml:"ports,attr"` - Vectors *uint `xml:"vectors,attr"` -} - -type DomainControllerXenBus struct { - MaxGrantFrames uint `xml:"maxGrantFrames,attr,omitempty"` - MaxEventChannels uint `xml:"maxEventChannels,attr,omitempty"` -} - -type DomainControllerNVME struct { - Serial string `xml:"serial,omitempty"` -} - -type DomainControllerDriverIOThreads struct { - IOThread []DomainControllerDriverIOThread `xml:"iothread"` -} - -type DomainControllerDriverIOThread struct { - ID uint `xml:"id,attr"` - Queues []DomainControllerDriverIOThreadQueue `xml:"queue"` -} - -type DomainControllerDriverIOThreadQueue struct { - ID uint `xml:"id,attr"` -} - -type DomainControllerDriver struct { - Queues *uint `xml:"queues,attr"` - CmdPerLUN *uint `xml:"cmd_per_lun,attr"` - MaxSectors *uint `xml:"max_sectors,attr"` - IOEventFD string `xml:"ioeventfd,attr,omitempty"` - IOThread uint `xml:"iothread,attr,omitempty"` - IOMMU string `xml:"iommu,attr,omitempty"` - ATS string `xml:"ats,attr,omitempty"` - Packed string `xml:"packed,attr,omitempty"` - PagePerVQ string `xml:"page_per_vq,attr,omitempty"` - IOThreads *DomainControllerDriverIOThreads `xml:"iothreads"` -} - -type DomainController struct { - XMLName xml.Name `xml:"controller"` - Type string `xml:"type,attr"` - Index *uint `xml:"index,attr"` - Model string `xml:"model,attr,omitempty"` - Driver *DomainControllerDriver `xml:"driver"` - PCI *DomainControllerPCI `xml:"-"` - USB *DomainControllerUSB `xml:"-"` - VirtIOSerial *DomainControllerVirtIOSerial `xml:"-"` - XenBus *DomainControllerXenBus `xml:"-"` - NVME *DomainControllerNVME `xml:"-"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainDiskSecret struct { - Type string `xml:"type,attr,omitempty"` - Usage string `xml:"usage,attr,omitempty"` - UUID string `xml:"uuid,attr,omitempty"` -} - -type DomainDiskAuth struct { - Username string `xml:"username,attr,omitempty"` - Secret *DomainDiskSecret `xml:"secret"` -} - -type DomainDiskSourceHost struct { - Transport string `xml:"transport,attr,omitempty"` - Name string `xml:"name,attr,omitempty"` - Port string `xml:"port,attr,omitempty"` - Socket string `xml:"socket,attr,omitempty"` -} - -type DomainDiskSourceSSL struct { - Verify string `xml:"verify,attr"` -} - -type DomainDiskCookie struct { - Name string `xml:"name,attr"` - Value string `xml:",chardata"` -} - -type DomainDiskCookies struct { - Cookies []DomainDiskCookie `xml:"cookie"` -} - -type DomainDiskSourceReadahead struct { - Size string `xml:"size,attr"` -} - -type DomainDiskSourceTimeout struct { - Seconds string `xml:"seconds,attr"` -} - -type DomainDiskReservationsSource DomainChardevSource - -type DomainDiskReservations struct { - Enabled string `xml:"enabled,attr,omitempty"` - Managed string `xml:"managed,attr,omitempty"` - Migration string `xml:"migration,attr,omitempty"` - Source *DomainDiskReservationsSource `xml:"source"` -} - -type DomainDiskSource struct { - File *DomainDiskSourceFile `xml:"-"` - Block *DomainDiskSourceBlock `xml:"-"` - Dir *DomainDiskSourceDir `xml:"-"` - Network *DomainDiskSourceNetwork `xml:"-"` - Volume *DomainDiskSourceVolume `xml:"-"` - NVME *DomainDiskSourceNVME `xml:"-"` - VHostUser *DomainDiskSourceVHostUser `xml:"-"` - VHostVDPA *DomainDiskSourceVHostVDPA `xml:"-"` - Ctl *DomainDiskSourceCtl `xml:"-"` - StartupPolicy string `xml:"startupPolicy,attr,omitempty"` - Index uint `xml:"index,attr,omitempty"` - Encryption *DomainDiskEncryption `xml:"encryption"` - Reservations *DomainDiskReservations `xml:"reservations"` - Slices *DomainDiskSlices `xml:"slices"` - SSL *DomainDiskSourceSSL `xml:"ssl"` - Cookies *DomainDiskCookies `xml:"cookies"` - Readahead *DomainDiskSourceReadahead `xml:"readahead"` - Timeout *DomainDiskSourceTimeout `xml:"timeout"` - DataStore *DomainDiskDataStore `xml:"dataStore"` -} - -type DomainDiskDataStore struct { - Format *DomainDiskFormat `xml:"format"` - Source *DomainDiskSource `xml:"source"` -} - -type DomainDiskSlices struct { - Slices []DomainDiskSlice `xml:"slice"` -} - -type DomainDiskSlice struct { - Type string `xml:"type,attr"` - Offset uint `xml:"offset,attr"` - Size uint `xml:"size,attr"` -} - -type DomainDiskSourceFile struct { - File string `xml:"file,attr,omitempty"` - FDGroup string `xml:"fdgroup,attr,omitempty"` - SecLabel []DomainDeviceSecLabel `xml:"seclabel"` -} - -type DomainDiskSourceNVME struct { - PCI *DomainDiskSourceNVMEPCI -} - -type DomainDiskSourceNVMEPCI struct { - Managed string `xml:"managed,attr,omitempty"` - Namespace uint64 `xml:"namespace,attr,omitempty"` - Address *DomainAddressPCI `xml:"address"` -} - -type DomainDiskSourceBlock struct { - Dev string `xml:"dev,attr,omitempty"` - SecLabel []DomainDeviceSecLabel `xml:"seclabel"` -} - -type DomainDiskSourceDir struct { - Dir string `xml:"dir,attr,omitempty"` -} - -type DomainDiskSourceNetwork struct { - Protocol string `xml:"protocol,attr,omitempty"` - Name string `xml:"name,attr,omitempty"` - Query string `xml:"query,attr,omitempty"` - TLS string `xml:"tls,attr,omitempty"` - TLSHostname string `xml:"tlsHostname,attr,omitempty"` - Hosts []DomainDiskSourceHost `xml:"host"` - Identity *DomainDiskSourceNetworkIdentity `xml:"identity"` - KnownHosts *DomainDiskSourceNetworkKnownHosts `xml:"knownHosts"` - Initiator *DomainDiskSourceNetworkInitiator `xml:"initiator"` - Snapshot *DomainDiskSourceNetworkSnapshot `xml:"snapshot"` - Config *DomainDiskSourceNetworkConfig `xml:"config"` - Reconnect *DomainDiskSourceNetworkReconnect `xml:"reconnect"` - Auth *DomainDiskAuth `xml:"auth"` -} - -type DomainDiskSourceNetworkKnownHosts struct { - Path string `xml:"path,attr"` -} - -type DomainDiskSourceNetworkIdentity struct { - User string `xml:"user,attr,omitempty"` - Group string `xml:"group,attr,omitempty"` - UserName string `xml:"username,attr,omitempty"` - Keyfile string `xml:"keyfile,attr,omitempty"` - AgentSock string `xml:"agentsock,attr,omitempty"` -} - -type DomainDiskSourceNetworkInitiator struct { - IQN *DomainDiskSourceNetworkIQN `xml:"iqn"` -} - -type DomainDiskSourceNetworkIQN struct { - Name string `xml:"name,attr,omitempty"` -} - -type DomainDiskSourceNetworkSnapshot struct { - Name string `xml:"name,attr"` -} - -type DomainDiskSourceNetworkConfig struct { - File string `xml:"file,attr"` -} - -type DomainDiskSourceNetworkReconnect struct { - Delay string `xml:"delay,attr"` -} - -type DomainDiskSourceVolume struct { - Pool string `xml:"pool,attr,omitempty"` - Volume string `xml:"volume,attr,omitempty"` - Mode string `xml:"mode,attr,omitempty"` - SecLabel []DomainDeviceSecLabel `xml:"seclabel"` -} - -type DomainDiskSourceVHostUser DomainChardevSource - -type DomainDiskSourceVHostVDPA struct { - Dev string `xml:"dev,attr"` -} - -type DomainDiskSourceCtl struct { - Dev string `xml:"dev,attr"` -} - -type DomainDiskMetadataCache struct { - MaxSize *DomainDiskMetadataCacheSize `xml:"max_size"` -} - -type DomainDiskMetadataCacheSize struct { - Unit string `xml:"unit,attr,omitempty"` - Value int `xml:",cdata"` -} - -type DomainDiskIOThreads struct { - IOThread []DomainDiskIOThread `xml:"iothread"` -} - -type DomainDiskIOThread struct { - ID uint `xml:"id,attr"` - Queues []DomainDiskIOThreadQueue `xml:"queue"` -} - -type DomainDiskIOThreadQueue struct { - ID uint `xml:"id,attr"` -} - -type DomainDiskStatistics struct { - Statistic []DomainDiskStatistic `xml:"statistic"` - LatencyHistogram []DomainDiskLatencyHistogram `xml:"latency-histogram"` -} - -type DomainDiskStatistic struct { - Interval uint `xml:"interval,attr"` -} - -type DomainDiskLatencyHistogram struct { - Type string `xml:"type,attr,omitempty"` - Bin []DomainDiskLatencyHistogramBin `xml:"bin"` -} - -type DomainDiskLatencyHistogramBin struct { - Start uint `xml:"start,attr"` -} - -type DomainDiskDriver struct { - Name string `xml:"name,attr,omitempty"` - Type string `xml:"type,attr,omitempty"` - Cache string `xml:"cache,attr,omitempty"` - ErrorPolicy string `xml:"error_policy,attr,omitempty"` - RErrorPolicy string `xml:"rerror_policy,attr,omitempty"` - IO string `xml:"io,attr,omitempty"` - IOEventFD string `xml:"ioeventfd,attr,omitempty"` - EventIDX string `xml:"event_idx,attr,omitempty"` - CopyOnRead string `xml:"copy_on_read,attr,omitempty"` - Discard string `xml:"discard,attr,omitempty"` - DiscardNoUnref string `xml:"discard_no_unref,attr,omitempty"` - IOThread *uint `xml:"iothread,attr"` - IOThreads *DomainDiskIOThreads `xml:"iothreads"` - DetectZeros string `xml:"detect_zeroes,attr,omitempty"` - Queues *uint `xml:"queues,attr"` - QueueSize *uint `xml:"queue_size,attr"` - IOMMU string `xml:"iommu,attr,omitempty"` - ATS string `xml:"ats,attr,omitempty"` - Packed string `xml:"packed,attr,omitempty"` - PagePerVQ string `xml:"page_per_vq,attr,omitempty"` - MetadataCache *DomainDiskMetadataCache `xml:"metadata_cache"` - Statistics *DomainDiskStatistics `xml:"statistics"` -} - -type DomainDiskTarget struct { - Dev string `xml:"dev,attr,omitempty"` - Bus string `xml:"bus,attr,omitempty"` - Tray string `xml:"tray,attr,omitempty"` - Removable string `xml:"removable,attr,omitempty"` - RotationRate uint `xml:"rotation_rate,attr,omitempty"` - DPOFUA string `xml:"dpofua,attr,omitempty"` -} - -type DomainDiskEncryption struct { - Format string `xml:"format,attr,omitempty"` - Engine string `xml:"engine,attr,omitempty"` - Secrets []DomainDiskSecret `xml:"secret"` -} - -type DomainDiskReadOnly struct { -} - -type DomainDiskShareable struct { -} - -type DomainDiskTransient struct { - ShareBacking string `xml:"shareBacking,attr,omitempty"` -} - -type DomainDiskIOTune struct { - TotalBytesSec uint64 `xml:"total_bytes_sec,omitempty"` - ReadBytesSec uint64 `xml:"read_bytes_sec,omitempty"` - WriteBytesSec uint64 `xml:"write_bytes_sec,omitempty"` - TotalIopsSec uint64 `xml:"total_iops_sec,omitempty"` - ReadIopsSec uint64 `xml:"read_iops_sec,omitempty"` - WriteIopsSec uint64 `xml:"write_iops_sec,omitempty"` - TotalBytesSecMax uint64 `xml:"total_bytes_sec_max,omitempty"` - ReadBytesSecMax uint64 `xml:"read_bytes_sec_max,omitempty"` - WriteBytesSecMax uint64 `xml:"write_bytes_sec_max,omitempty"` - TotalIopsSecMax uint64 `xml:"total_iops_sec_max,omitempty"` - ReadIopsSecMax uint64 `xml:"read_iops_sec_max,omitempty"` - WriteIopsSecMax uint64 `xml:"write_iops_sec_max,omitempty"` - TotalBytesSecMaxLength uint64 `xml:"total_bytes_sec_max_length,omitempty"` - ReadBytesSecMaxLength uint64 `xml:"read_bytes_sec_max_length,omitempty"` - WriteBytesSecMaxLength uint64 `xml:"write_bytes_sec_max_length,omitempty"` - TotalIopsSecMaxLength uint64 `xml:"total_iops_sec_max_length,omitempty"` - ReadIopsSecMaxLength uint64 `xml:"read_iops_sec_max_length,omitempty"` - WriteIopsSecMaxLength uint64 `xml:"write_iops_sec_max_length,omitempty"` - SizeIopsSec uint64 `xml:"size_iops_sec,omitempty"` - GroupName string `xml:"group_name,omitempty"` -} - -type ThrottleFilter struct { - Group string `xml:"group,attr"` -} - -type ThrottleFilters struct { - ThrottleFilter []ThrottleFilter `xml:"throttlefilter"` -} - -type DomainDiskGeometry struct { - Cylinders uint `xml:"cyls,attr"` - Headers uint `xml:"heads,attr"` - Sectors uint `xml:"secs,attr"` - Trans string `xml:"trans,attr,omitempty"` -} - -type DomainDiskBlockIO struct { - LogicalBlockSize uint `xml:"logical_block_size,attr,omitempty"` - PhysicalBlockSize uint `xml:"physical_block_size,attr,omitempty"` - DiscardGranularity *uint `xml:"discard_granularity,attr"` -} - -type DomainDiskFormat struct { - Type string `xml:"type,attr"` - MetadataCache *DomainDiskMetadataCache `xml:"metadata_cache"` -} - -type DomainDiskBackingStore struct { - Index uint `xml:"index,attr,omitempty"` - Format *DomainDiskFormat `xml:"format"` - Source *DomainDiskSource `xml:"source"` - BackingStore *DomainDiskBackingStore `xml:"backingStore"` -} - -type DomainDiskMirror struct { - Job string `xml:"job,attr,omitempty"` - Ready string `xml:"ready,attr,omitempty"` - Format *DomainDiskFormat `xml:"format"` - Source *DomainDiskSource `xml:"source"` - BackingStore *DomainDiskBackingStore `xml:"backingStore"` -} - -type DomainBackendDomain struct { - Name string `xml:"name,attr"` -} - -type DomainDisk struct { - XMLName xml.Name `xml:"disk"` - Device string `xml:"device,attr,omitempty"` - RawIO string `xml:"rawio,attr,omitempty"` - SGIO string `xml:"sgio,attr,omitempty"` - Snapshot string `xml:"snapshot,attr,omitempty"` - Model string `xml:"model,attr,omitempty"` - Driver *DomainDiskDriver `xml:"driver"` - Auth *DomainDiskAuth `xml:"auth"` - Source *DomainDiskSource `xml:"source"` - BackingStore *DomainDiskBackingStore `xml:"backingStore"` - BackendDomain *DomainBackendDomain `xml:"backenddomain"` - Geometry *DomainDiskGeometry `xml:"geometry"` - BlockIO *DomainDiskBlockIO `xml:"blockio"` - Mirror *DomainDiskMirror `xml:"mirror"` - Target *DomainDiskTarget `xml:"target"` - IOTune *DomainDiskIOTune `xml:"iotune"` - ThrottleFilters *ThrottleFilters `xml:"throttlefilters"` - ReadOnly *DomainDiskReadOnly `xml:"readonly"` - Shareable *DomainDiskShareable `xml:"shareable"` - Transient *DomainDiskTransient `xml:"transient"` - Serial string `xml:"serial,omitempty"` - WWN string `xml:"wwn,omitempty"` - Vendor string `xml:"vendor,omitempty"` - Product string `xml:"product,omitempty"` - Encryption *DomainDiskEncryption `xml:"encryption"` - Boot *DomainDeviceBoot `xml:"boot"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainFilesystemDriver struct { - Type string `xml:"type,attr,omitempty"` - Format string `xml:"format,attr,omitempty"` - Name string `xml:"name,attr,omitempty"` - WRPolicy string `xml:"wrpolicy,attr,omitempty"` - IOMMU string `xml:"iommu,attr,omitempty"` - ATS string `xml:"ats,attr,omitempty"` - Packed string `xml:"packed,attr,omitempty"` - PagePerVQ string `xml:"page_per_vq,attr,omitempty"` - Queue uint `xml:"queue,attr,omitempty"` -} - -type DomainFilesystemSource struct { - Mount *DomainFilesystemSourceMount `xml:"-"` - Block *DomainFilesystemSourceBlock `xml:"-"` - File *DomainFilesystemSourceFile `xml:"-"` - Template *DomainFilesystemSourceTemplate `xml:"-"` - RAM *DomainFilesystemSourceRAM `xml:"-"` - Bind *DomainFilesystemSourceBind `xml:"-"` - Volume *DomainFilesystemSourceVolume `xml:"-"` -} - -type DomainFilesystemSourceMount struct { - Dir string `xml:"dir,attr,omitempty"` - Socket string `xml:"socket,attr,omitempty"` -} - -type DomainFilesystemSourceBlock struct { - Dev string `xml:"dev,attr"` -} - -type DomainFilesystemSourceFile struct { - File string `xml:"file,attr"` -} - -type DomainFilesystemSourceTemplate struct { - Name string `xml:"name,attr"` -} - -type DomainFilesystemSourceRAM struct { - Usage uint `xml:"usage,attr"` - Units string `xml:"units,attr,omitempty"` -} - -type DomainFilesystemSourceBind struct { - Dir string `xml:"dir,attr"` -} - -type DomainFilesystemSourceVolume struct { - Pool string `xml:"pool,attr"` - Volume string `xml:"volume,attr"` -} - -type DomainFilesystemTarget struct { - Dir string `xml:"dir,attr"` -} - -type DomainFilesystemReadOnly struct { -} - -type DomainFilesystemSpaceHardLimit struct { - Value uint `xml:",chardata"` - Unit string `xml:"unit,attr,omitempty"` -} - -type DomainFilesystemSpaceSoftLimit struct { - Value uint `xml:",chardata"` - Unit string `xml:"unit,attr,omitempty"` -} - -type DomainFilesystemBinaryCache struct { - Mode string `xml:"mode,attr"` -} - -type DomainFilesystemBinarySandbox struct { - Mode string `xml:"mode,attr"` -} - -type DomainFilesystemBinaryLock struct { - POSIX string `xml:"posix,attr,omitempty"` - Flock string `xml:"flock,attr,omitempty"` -} - -type DomainFilesystemBinaryThreadPool struct { - Size uint `xml:"size,attr,omitempty"` -} - -type DomainFilesystemBinaryOpenFiles struct { - Max uint `xml:"max,attr,"` -} - -type DomainFilesystemBinary struct { - Path string `xml:"path,attr,omitempty"` - XAttr string `xml:"xattr,attr,omitempty"` - Cache *DomainFilesystemBinaryCache `xml:"cache"` - Sandbox *DomainFilesystemBinarySandbox `xml:"sandbox"` - Lock *DomainFilesystemBinaryLock `xml:"lock"` - ThreadPool *DomainFilesystemBinaryThreadPool `xml:"thread_pool"` - OpenFiles *DomainFilesystemBinaryOpenFiles `xml:"openfiles"` -} - -type DomainFilesystemIDMapEntry struct { - Start uint `xml:"start,attr"` - Target uint `xml:"target,attr"` - Count uint `xml:"count,attr"` -} - -type DomainFilesystemIDMap struct { - UID []DomainFilesystemIDMapEntry `xml:"uid"` - GID []DomainFilesystemIDMapEntry `xml:"gid"` -} - -type DomainFilesystem struct { - XMLName xml.Name `xml:"filesystem"` - AccessMode string `xml:"accessmode,attr,omitempty"` - Model string `xml:"model,attr,omitempty"` - MultiDevs string `xml:"multidevs,attr,omitempty"` - FMode string `xml:"fmode,attr,omitempty"` - DMode string `xml:"dmode,attr,omitempty"` - Driver *DomainFilesystemDriver `xml:"driver"` - Binary *DomainFilesystemBinary `xml:"binary"` - IDMap *DomainFilesystemIDMap `xml:"idmap"` - Source *DomainFilesystemSource `xml:"source"` - Target *DomainFilesystemTarget `xml:"target"` - ReadOnly *DomainFilesystemReadOnly `xml:"readonly"` - SpaceHardLimit *DomainFilesystemSpaceHardLimit `xml:"space_hard_limit"` - SpaceSoftLimit *DomainFilesystemSpaceSoftLimit `xml:"space_soft_limit"` - Boot *DomainDeviceBoot `xml:"boot"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainInterfaceMAC struct { - Address string `xml:"address,attr"` - Type string `xml:"type,attr,omitempty"` - Check string `xml:"check,attr,omitempty"` -} - -type DomainInterfaceModel struct { - Type string `xml:"type,attr"` -} - -type DomainInterfaceSourceVHostUser struct { - Chardev *DomainChardevSource `xml:"-"` - Dev string `xml:"-"` -} - -type DomainInterfaceSource struct { - User *DomainInterfaceSourceUser `xml:"-"` - Ethernet *DomainInterfaceSourceEthernet `xml:"-"` - VHostUser *DomainInterfaceSourceVHostUser `xml:"-"` - Server *DomainInterfaceSourceServer `xml:"-"` - Client *DomainInterfaceSourceClient `xml:"-"` - MCast *DomainInterfaceSourceMCast `xml:"-"` - Network *DomainInterfaceSourceNetwork `xml:"-"` - Bridge *DomainInterfaceSourceBridge `xml:"-"` - Internal *DomainInterfaceSourceInternal `xml:"-"` - Direct *DomainInterfaceSourceDirect `xml:"-"` - Hostdev *DomainInterfaceSourceHostdev `xml:"-"` - UDP *DomainInterfaceSourceUDP `xml:"-"` - VDPA *DomainInterfaceSourceVDPA `xml:"-"` - Null *DomainInterfaceSourceNull `xml:"-"` - VDS *DomainInterfaceSourceVDS `xml:"-"` -} - -type DomainInterfaceSourceUser struct { - Dev string `xml:"dev,attr,omitempty"` -} - -type DomainInterfaceSourcePortForward struct { - Proto string `xml:"proto,attr"` - Address string `xml:"address,attr,omitempty"` - Dev string `xml:"dev,attr,omitempty"` - Ranges []DomainInterfaceSourcePortForwardRange `xml:"range"` -} - -type DomainInterfaceSourcePortForwardRange struct { - Start uint `xml:"start,attr"` - End uint `xml:"end,attr,omitempty"` - To uint `xml:"to,attr,omitempty"` - Exclude string `xml:"exclude,attr,omitempty"` -} - -type DomainInterfaceSourceEthernet struct { - IP []DomainInterfaceIP `xml:"ip"` - Route []DomainInterfaceRoute `xml:"route"` -} - -type DomainInterfaceSourceServer struct { - Address string `xml:"address,attr,omitempty"` - Port uint `xml:"port,attr,omitempty"` - Local *DomainInterfaceSourceLocal `xml:"local"` -} - -type DomainInterfaceSourceClient struct { - Address string `xml:"address,attr,omitempty"` - Port uint `xml:"port,attr,omitempty"` - Local *DomainInterfaceSourceLocal `xml:"local"` -} - -type DomainInterfaceSourceMCast struct { - Address string `xml:"address,attr,omitempty"` - Port uint `xml:"port,attr,omitempty"` - Local *DomainInterfaceSourceLocal `xml:"local"` -} - -type DomainInterfaceSourceNetwork struct { - Network string `xml:"network,attr,omitempty"` - PortGroup string `xml:"portgroup,attr,omitempty"` - Bridge string `xml:"bridge,attr,omitempty"` - PortID string `xml:"portid,attr,omitempty"` -} - -type DomainInterfaceSourceBridge struct { - Bridge string `xml:"bridge,attr"` -} - -type DomainInterfaceSourceInternal struct { - Name string `xml:"name,attr,omitempty"` -} - -type DomainInterfaceSourceDirect struct { - Dev string `xml:"dev,attr,omitempty"` - Mode string `xml:"mode,attr,omitempty"` -} - -type DomainInterfaceSourceHostdev struct { - PCI *DomainHostdevSubsysPCISource `xml:"-"` - USB *DomainHostdevSubsysUSBSource `xml:"-"` -} - -type DomainInterfaceSourceUDP struct { - Address string `xml:"address,attr,omitempty"` - Port uint `xml:"port,attr,omitempty"` - Local *DomainInterfaceSourceLocal `xml:"local"` -} - -type DomainInterfaceSourceVDPA struct { - Device string `xml:"dev,attr,omitempty"` -} - -type DomainInterfaceSourceNull struct { -} - -type DomainInterfaceSourceVDS struct { - SwitchID string `xml:"switchid,attr"` - PortID int `xml:"portid,attr,omitempty"` - PortGroupID string `xml:"portgroupid,attr,omitempty"` - ConnectionID int `xml:"connectionid,attr,omitempty"` -} - -type DomainInterfaceSourceLocal struct { - Address string `xml:"address,attr,omitempty"` - Port uint `xml:"port,attr,omitempty"` -} - -type DomainInterfaceTarget struct { - Dev string `xml:"dev,attr"` - Managed string `xml:"managed,attr,omitempty"` -} - -type DomainInterfaceLink struct { - State string `xml:"state,attr"` -} - -type DomainDeviceBoot struct { - Order uint `xml:"order,attr"` - LoadParm string `xml:"loadparm,attr,omitempty"` -} - -type DomainInterfaceScript struct { - Path string `xml:"path,attr"` -} - -type DomainInterfaceDriver struct { - Name string `xml:"name,attr,omitempty"` - TXMode string `xml:"txmode,attr,omitempty"` - IOEventFD string `xml:"ioeventfd,attr,omitempty"` - EventIDX string `xml:"event_idx,attr,omitempty"` - Queues uint `xml:"queues,attr,omitempty"` - RXQueueSize uint `xml:"rx_queue_size,attr,omitempty"` - TXQueueSize uint `xml:"tx_queue_size,attr,omitempty"` - IOMMU string `xml:"iommu,attr,omitempty"` - ATS string `xml:"ats,attr,omitempty"` - Packed string `xml:"packed,attr,omitempty"` - PagePerVQ string `xml:"page_per_vq,attr,omitempty"` - RSS string `xml:"rss,attr,omitempty"` - RSSHashReport string `xml:"rss_hash_report,attr,omitempty"` - Host *DomainInterfaceDriverHost `xml:"host"` - Guest *DomainInterfaceDriverGuest `xml:"guest"` -} - -type DomainInterfaceDriverHost struct { - CSum string `xml:"csum,attr,omitempty"` - GSO string `xml:"gso,attr,omitempty"` - TSO4 string `xml:"tso4,attr,omitempty"` - TSO6 string `xml:"tso6,attr,omitempty"` - ECN string `xml:"ecn,attr,omitempty"` - UFO string `xml:"ufo,attr,omitempty"` - MrgRXBuf string `xml:"mrg_rxbuf,attr,omitempty"` -} - -type DomainInterfaceDriverGuest struct { - CSum string `xml:"csum,attr,omitempty"` - TSO4 string `xml:"tso4,attr,omitempty"` - TSO6 string `xml:"tso6,attr,omitempty"` - ECN string `xml:"ecn,attr,omitempty"` - UFO string `xml:"ufo,attr,omitempty"` -} - -type DomainInterfaceVirtualPort struct { - Params *DomainInterfaceVirtualPortParams `xml:"parameters"` -} - -type DomainInterfaceVirtualPortParams struct { - Any *DomainInterfaceVirtualPortParamsAny `xml:"-"` - VEPA8021QBG *DomainInterfaceVirtualPortParamsVEPA8021QBG `xml:"-"` - VNTag8011QBH *DomainInterfaceVirtualPortParamsVNTag8021QBH `xml:"-"` - OpenVSwitch *DomainInterfaceVirtualPortParamsOpenVSwitch `xml:"-"` - MidoNet *DomainInterfaceVirtualPortParamsMidoNet `xml:"-"` -} - -type DomainInterfaceVirtualPortParamsAny struct { - ManagerID *uint `xml:"managerid,attr"` - TypeID *uint `xml:"typeid,attr"` - TypeIDVersion *uint `xml:"typeidversion,attr"` - InstanceID string `xml:"instanceid,attr,omitempty"` - ProfileID string `xml:"profileid,attr,omitempty"` - InterfaceID string `xml:"interfaceid,attr,omitempty"` -} - -type DomainInterfaceVirtualPortParamsVEPA8021QBG struct { - ManagerID *uint `xml:"managerid,attr"` - TypeID *uint `xml:"typeid,attr"` - TypeIDVersion *uint `xml:"typeidversion,attr"` - InstanceID string `xml:"instanceid,attr,omitempty"` -} - -type DomainInterfaceVirtualPortParamsVNTag8021QBH struct { - ProfileID string `xml:"profileid,attr,omitempty"` -} - -type DomainInterfaceVirtualPortParamsOpenVSwitch struct { - InterfaceID string `xml:"interfaceid,attr,omitempty"` - ProfileID string `xml:"profileid,attr,omitempty"` -} - -type DomainInterfaceVirtualPortParamsMidoNet struct { - InterfaceID string `xml:"interfaceid,attr,omitempty"` -} - -type DomainInterfaceBandwidthParams struct { - Average *int `xml:"average,attr"` - Peak *int `xml:"peak,attr"` - Burst *int `xml:"burst,attr"` - Floor *int `xml:"floor,attr"` -} - -type DomainInterfaceBandwidth struct { - Inbound *DomainInterfaceBandwidthParams `xml:"inbound"` - Outbound *DomainInterfaceBandwidthParams `xml:"outbound"` -} - -type DomainInterfaceVLan struct { - Trunk string `xml:"trunk,attr,omitempty"` - Tags []DomainInterfaceVLanTag `xml:"tag"` -} - -type DomainInterfaceVLanTag struct { - ID uint `xml:"id,attr"` - NativeMode string `xml:"nativeMode,attr,omitempty"` -} - -type DomainInterfaceGuest struct { - Dev string `xml:"dev,attr,omitempty"` - Actual string `xml:"actual,attr,omitempty"` -} - -type DomainInterfaceFilterRef struct { - Filter string `xml:"filter,attr"` - Parameters []DomainInterfaceFilterParam `xml:"parameter"` -} - -type DomainInterfaceFilterParam struct { - Name string `xml:"name,attr"` - Value string `xml:"value,attr"` -} - -type DomainInterfaceBackend struct { - Type string `xml:"type,attr,omitempty"` - Tap string `xml:"tap,attr,omitempty"` - VHost string `xml:"vhost,attr,omitempty"` - LogFile string `xml:"logFile,attr,omitempty"` - Hostname string `xml:"hostname,attr,omitempty"` - FQDN string `xml:"fqdn,attr,omitempty"` -} - -type DomainInterfaceTune struct { - SndBuf uint `xml:"sndbuf"` -} - -type DomainInterfaceMTU struct { - Size uint `xml:"size,attr"` -} - -type DomainInterfaceCoalesce struct { - RX *DomainInterfaceCoalesceRX `xml:"rx"` -} - -type DomainInterfaceCoalesceRX struct { - Frames *DomainInterfaceCoalesceRXFrames `xml:"frames"` -} - -type DomainInterfaceCoalesceRXFrames struct { - Max *uint `xml:"max,attr"` -} - -type DomainROM struct { - Bar string `xml:"bar,attr,omitempty"` - File *string `xml:"file,attr"` - Enabled string `xml:"enabled,attr,omitempty"` -} - -type DomainInterfaceIP struct { - Address string `xml:"address,attr"` - Family string `xml:"family,attr,omitempty"` - Prefix uint `xml:"prefix,attr,omitempty"` - Peer string `xml:"peer,attr,omitempty"` -} - -type DomainInterfaceRoute struct { - Family string `xml:"family,attr,omitempty"` - Address string `xml:"address,attr,omitempty"` - Netmask string `xml:"netmask,attr,omitempty"` - Prefix uint `xml:"prefix,attr,omitempty"` - Gateway string `xml:"gateway,attr"` - Metric uint `xml:"metric,attr,omitempty"` -} - -type DomainInterfaceTeaming struct { - Type string `xml:"type,attr"` - Persistent string `xml:"persistent,attr,omitempty"` -} - -type DomainInterfacePortOptions struct { - Isolated string `xml:"isolated,attr,omitempty"` -} - -type DomainInterface struct { - XMLName xml.Name `xml:"interface"` - Managed string `xml:"managed,attr,omitempty"` - TrustGuestRXFilters string `xml:"trustGuestRxFilters,attr,omitempty"` - MAC *DomainInterfaceMAC `xml:"mac"` - Source *DomainInterfaceSource `xml:"source"` - Boot *DomainDeviceBoot `xml:"boot"` - VLan *DomainInterfaceVLan `xml:"vlan"` - VirtualPort *DomainInterfaceVirtualPort `xml:"virtualport"` - IP []DomainInterfaceIP `xml:"ip"` - Route []DomainInterfaceRoute `xml:"route"` - PortForward []DomainInterfaceSourcePortForward `xml:"portForward"` - Script *DomainInterfaceScript `xml:"script"` - DownScript *DomainInterfaceScript `xml:"downscript"` - BackendDomain *DomainBackendDomain `xml:"backenddomain"` - Target *DomainInterfaceTarget `xml:"target"` - Guest *DomainInterfaceGuest `xml:"guest"` - Model *DomainInterfaceModel `xml:"model"` - Driver *DomainInterfaceDriver `xml:"driver"` - Backend *DomainInterfaceBackend `xml:"backend"` - FilterRef *DomainInterfaceFilterRef `xml:"filterref"` - Tune *DomainInterfaceTune `xml:"tune"` - Teaming *DomainInterfaceTeaming `xml:"teaming"` - Link *DomainInterfaceLink `xml:"link"` - MTU *DomainInterfaceMTU `xml:"mtu"` - Bandwidth *DomainInterfaceBandwidth `xml:"bandwidth"` - PortOptions *DomainInterfacePortOptions `xml:"port"` - Coalesce *DomainInterfaceCoalesce `xml:"coalesce"` - ROM *DomainROM `xml:"rom"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainChardevSource struct { - Null *DomainChardevSourceNull `xml:"-"` - VC *DomainChardevSourceVC `xml:"-"` - Pty *DomainChardevSourcePty `xml:"-"` - Dev *DomainChardevSourceDev `xml:"-"` - File *DomainChardevSourceFile `xml:"-"` - Pipe *DomainChardevSourcePipe `xml:"-"` - StdIO *DomainChardevSourceStdIO `xml:"-"` - UDP *DomainChardevSourceUDP `xml:"-"` - TCP *DomainChardevSourceTCP `xml:"-"` - UNIX *DomainChardevSourceUNIX `xml:"-"` - SpiceVMC *DomainChardevSourceSpiceVMC `xml:"-"` - SpicePort *DomainChardevSourceSpicePort `xml:"-"` - NMDM *DomainChardevSourceNMDM `xml:"-"` - QEMUVDAgent *DomainChardevSourceQEMUVDAgent `xml:"-"` - DBus *DomainChardevSourceDBus `xml:"-"` -} - -type DomainChardevSourceNull struct { -} - -type DomainChardevSourceVC struct { -} - -type DomainChardevSourcePty struct { - Path string `xml:"path,attr"` - SecLabel []DomainDeviceSecLabel `xml:"seclabel"` -} - -type DomainChardevSourceDev struct { - Path string `xml:"path,attr"` - SecLabel []DomainDeviceSecLabel `xml:"seclabel"` -} - -type DomainChardevSourceFile struct { - Path string `xml:"path,attr"` - Append string `xml:"append,attr,omitempty"` - SecLabel []DomainDeviceSecLabel `xml:"seclabel"` -} - -type DomainChardevSourcePipe struct { - Path string `xml:"path,attr"` - SecLabel []DomainDeviceSecLabel `xml:"seclabel"` -} - -type DomainChardevSourceStdIO struct { -} - -type DomainChardevSourceUDP struct { - BindHost string `xml:"-"` - BindService string `xml:"-"` - ConnectHost string `xml:"-"` - ConnectService string `xml:"-"` -} - -type DomainChardevSourceReconnect struct { - Enabled string `xml:"enabled,attr"` - Timeout *uint `xml:"timeout,attr"` -} - -type DomainChardevSourceTCP struct { - Mode string `xml:"mode,attr,omitempty"` - Host string `xml:"host,attr,omitempty"` - Service string `xml:"service,attr,omitempty"` - TLS string `xml:"tls,attr,omitempty"` - Reconnect *DomainChardevSourceReconnect `xml:"reconnect"` -} - -type DomainChardevSourceUNIX struct { - Mode string `xml:"mode,attr,omitempty"` - Path string `xml:"path,attr,omitempty"` - Reconnect *DomainChardevSourceReconnect `xml:"reconnect"` - SecLabel []DomainDeviceSecLabel `xml:"seclabel"` -} - -type DomainChardevSourceSpiceVMC struct { -} - -type DomainChardevSourceSpicePort struct { - Channel string `xml:"channel,attr"` -} - -type DomainChardevSourceNMDM struct { - Master string `xml:"master,attr"` - Slave string `xml:"slave,attr"` -} - -type DomainChardevSourceQEMUVDAgentMouse struct { - Mode string `xml:"mode,attr"` -} - -type DomainChardevSourceQEMUVDAgentClipBoard struct { - CopyPaste string `xml:"copypaste,attr"` -} - -type DomainChardevSourceQEMUVDAgent struct { - Mouse *DomainChardevSourceQEMUVDAgentMouse `xml:"mouse"` - ClipBoard *DomainChardevSourceQEMUVDAgentClipBoard `xml:"clipboard"` -} - -type DomainChardevSourceDBus struct { - Channel string `xml:"channel,attr,omitempty"` -} - -type DomainChardevTarget struct { - Type string `xml:"type,attr,omitempty"` - Name string `xml:"name,attr,omitempty"` - State string `xml:"state,attr,omitempty"` // is guest agent connected? - Port *uint `xml:"port,attr"` -} - -type DomainConsoleTarget struct { - Type string `xml:"type,attr,omitempty"` - Port *uint `xml:"port,attr"` -} - -type DomainSerialTarget struct { - Type string `xml:"type,attr,omitempty"` - Port *uint `xml:"port,attr"` - Model *DomainSerialTargetModel `xml:"model"` -} - -type DomainSerialTargetModel struct { - Name string `xml:"name,attr,omitempty"` -} - -type DomainParallelTarget struct { - Type string `xml:"type,attr,omitempty"` - Port *uint `xml:"port,attr"` -} - -type DomainChannelTarget struct { - VirtIO *DomainChannelTargetVirtIO `xml:"-"` - Xen *DomainChannelTargetXen `xml:"-"` - GuestFWD *DomainChannelTargetGuestFWD `xml:"-"` -} - -type DomainChannelTargetVirtIO struct { - Name string `xml:"name,attr,omitempty"` - State string `xml:"state,attr,omitempty"` // is guest agent connected? -} - -type DomainChannelTargetXen struct { - Name string `xml:"name,attr,omitempty"` - State string `xml:"state,attr,omitempty"` // is guest agent connected? -} - -type DomainChannelTargetGuestFWD struct { - Address string `xml:"address,attr,omitempty"` - Port string `xml:"port,attr,omitempty"` -} - -type DomainAlias struct { - Name string `xml:"name,attr"` -} - -type DomainDeviceACPI struct { - Index uint `xml:"index,attr,omitempty"` - Nodeset string `xml:"nodeset,attr,omitempty"` -} - -type DomainAddressPCI struct { - Domain *uint `xml:"domain,attr"` - Bus *uint `xml:"bus,attr"` - Slot *uint `xml:"slot,attr"` - Function *uint `xml:"function,attr"` - MultiFunction string `xml:"multifunction,attr,omitempty"` - ZPCI *DomainAddressZPCI `xml:"zpci"` -} - -type DomainAddressZPCI struct { - UID *uint `xml:"uid,attr,omitempty"` - FID *uint `xml:"fid,attr,omitempty"` -} - -type DomainAddressUSB struct { - Bus *uint `xml:"bus,attr"` - Port string `xml:"port,attr,omitempty"` - Device *uint `xml:"device,attr"` -} - -type DomainAddressDrive struct { - Controller *uint `xml:"controller,attr"` - Bus *uint `xml:"bus,attr"` - Target *uint `xml:"target,attr"` - Unit *uint `xml:"unit,attr"` -} - -type DomainAddressDIMM struct { - Slot *uint `xml:"slot,attr"` - Base *uint64 `xml:"base,attr"` -} - -type DomainAddressISA struct { - IOBase *uint `xml:"iobase,attr"` - IRQ *uint `xml:"irq,attr"` -} - -type DomainAddressVirtioMMIO struct { -} - -type DomainAddressCCW struct { - CSSID *uint `xml:"cssid,attr"` - SSID *uint `xml:"ssid,attr"` - DevNo *uint `xml:"devno,attr"` -} - -type DomainAddressVirtioSerial struct { - Controller *uint `xml:"controller,attr"` - Bus *uint `xml:"bus,attr"` - Port *uint `xml:"port,attr"` -} - -type DomainAddressSpaprVIO struct { - Reg *uint64 `xml:"reg,attr"` -} - -type DomainAddressCCID struct { - Controller *uint `xml:"controller,attr"` - Slot *uint `xml:"slot,attr"` -} - -type DomainAddressVirtioS390 struct { -} - -type DomainAddressUnassigned struct { -} - -type DomainAddress struct { - PCI *DomainAddressPCI - Drive *DomainAddressDrive - VirtioSerial *DomainAddressVirtioSerial - CCID *DomainAddressCCID - USB *DomainAddressUSB - SpaprVIO *DomainAddressSpaprVIO - VirtioS390 *DomainAddressVirtioS390 - CCW *DomainAddressCCW - VirtioMMIO *DomainAddressVirtioMMIO - ISA *DomainAddressISA - DIMM *DomainAddressDIMM - Unassigned *DomainAddressUnassigned -} - -type DomainChardevLog struct { - File string `xml:"file,attr"` - Append string `xml:"append,attr,omitempty"` -} - -type DomainConsole struct { - XMLName xml.Name `xml:"console"` - TTY string `xml:"tty,attr,omitempty"` - Source *DomainChardevSource `xml:"source"` - Protocol *DomainChardevProtocol `xml:"protocol"` - Target *DomainConsoleTarget `xml:"target"` - Log *DomainChardevLog `xml:"log"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainSerial struct { - XMLName xml.Name `xml:"serial"` - Source *DomainChardevSource `xml:"source"` - Protocol *DomainChardevProtocol `xml:"protocol"` - Target *DomainSerialTarget `xml:"target"` - Log *DomainChardevLog `xml:"log"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainParallel struct { - XMLName xml.Name `xml:"parallel"` - Source *DomainChardevSource `xml:"source"` - Protocol *DomainChardevProtocol `xml:"protocol"` - Target *DomainParallelTarget `xml:"target"` - Log *DomainChardevLog `xml:"log"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainChardevProtocol struct { - Type string `xml:"type,attr"` -} - -type DomainChannel struct { - XMLName xml.Name `xml:"channel"` - Source *DomainChardevSource `xml:"source"` - Protocol *DomainChardevProtocol `xml:"protocol"` - Target *DomainChannelTarget `xml:"target"` - Log *DomainChardevLog `xml:"log"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainRedirDev struct { - XMLName xml.Name `xml:"redirdev"` - Bus string `xml:"bus,attr,omitempty"` - Source *DomainChardevSource `xml:"source"` - Protocol *DomainChardevProtocol `xml:"protocol"` - Boot *DomainDeviceBoot `xml:"boot"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainRedirFilter struct { - USB []DomainRedirFilterUSB `xml:"usbdev"` -} - -type DomainRedirFilterUSB struct { - Class *uint `xml:"class,attr"` - Vendor *uint `xml:"vendor,attr"` - Product *uint `xml:"product,attr"` - Version string `xml:"version,attr,omitempty"` - Allow string `xml:"allow,attr"` -} - -type DomainInput struct { - XMLName xml.Name `xml:"input"` - Type string `xml:"type,attr"` - Bus string `xml:"bus,attr,omitempty"` - Model string `xml:"model,attr,omitempty"` - Driver *DomainInputDriver `xml:"driver"` - Source *DomainInputSource `xml:"source"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainInputDriver struct { - IOMMU string `xml:"iommu,attr,omitempty"` - ATS string `xml:"ats,attr,omitempty"` - Packed string `xml:"packed,attr,omitempty"` - PagePerVQ string `xml:"page_per_vq,attr,omitempty"` -} - -type DomainInputSource struct { - Passthrough *DomainInputSourcePassthrough `xml:"-"` - EVDev *DomainInputSourceEVDev `xml:"-"` -} - -type DomainInputSourcePassthrough struct { - EVDev string `xml:"evdev,attr"` -} - -type DomainInputSourceEVDev struct { - Dev string `xml:"dev,attr"` - Grab string `xml:"grab,attr,omitempty"` - GrabToggle string `xml:"grabToggle,attr,omitempty"` - Repeat string `xml:"repeat,attr,omitempty"` -} - -type DomainGraphicListenerAddress struct { - Address string `xml:"address,attr,omitempty"` -} - -type DomainGraphicListenerNetwork struct { - Address string `xml:"address,attr,omitempty"` - Network string `xml:"network,attr,omitempty"` -} - -type DomainGraphicListenerSocket struct { - Socket string `xml:"socket,attr,omitempty"` -} - -type DomainGraphicListener struct { - Address *DomainGraphicListenerAddress `xml:"-"` - Network *DomainGraphicListenerNetwork `xml:"-"` - Socket *DomainGraphicListenerSocket `xml:"-"` -} - -type DomainGraphicChannel struct { - Name string `xml:"name,attr,omitempty"` - Mode string `xml:"mode,attr,omitempty"` -} - -type DomainGraphicFileTransfer struct { - Enable string `xml:"enable,attr,omitempty"` -} - -type DomainGraphicsSDLGL struct { - Enable string `xml:"enable,attr,omitempty"` -} - -type DomainGraphicSDL struct { - Display string `xml:"display,attr,omitempty"` - XAuth string `xml:"xauth,attr,omitempty"` - FullScreen string `xml:"fullscreen,attr,omitempty"` - GL *DomainGraphicsSDLGL `xml:"gl"` -} - -type DomainGraphicVNC struct { - Socket string `xml:"socket,attr,omitempty"` - Port int `xml:"port,attr,omitempty"` - AutoPort string `xml:"autoport,attr,omitempty"` - WebSocket int `xml:"websocket,attr,omitempty"` - Keymap string `xml:"keymap,attr,omitempty"` - SharePolicy string `xml:"sharePolicy,attr,omitempty"` - Passwd string `xml:"passwd,attr,omitempty"` - PasswdValidTo string `xml:"passwdValidTo,attr,omitempty"` - Connected string `xml:"connected,attr,omitempty"` - PowerControl string `xml:"powerControl,attr,omitempty"` - Listen string `xml:"listen,attr,omitempty"` - Wait string `xml:"wait,attr,omitempty"` - Listeners []DomainGraphicListener `xml:"listen"` -} - -type DomainGraphicRDP struct { - Port int `xml:"port,attr,omitempty"` - AutoPort string `xml:"autoport,attr,omitempty"` - ReplaceUser string `xml:"replaceUser,attr,omitempty"` - MultiUser string `xml:"multiUser,attr,omitempty"` - Username string `xml:"username,attr,omitempty"` - Passwd string `xml:"passwd,attr,omitempty"` - Listen string `xml:"listen,attr,omitempty"` - Listeners []DomainGraphicListener `xml:"listen"` -} - -type DomainGraphicDesktop struct { - Display string `xml:"display,attr,omitempty"` - FullScreen string `xml:"fullscreen,attr,omitempty"` -} - -type DomainGraphicSpiceChannel struct { - Name string `xml:"name,attr"` - Mode string `xml:"mode,attr"` -} - -type DomainGraphicSpiceImage struct { - Compression string `xml:"compression,attr"` -} - -type DomainGraphicSpiceJPEG struct { - Compression string `xml:"compression,attr"` -} - -type DomainGraphicSpiceZLib struct { - Compression string `xml:"compression,attr"` -} - -type DomainGraphicSpicePlayback struct { - Compression string `xml:"compression,attr"` -} - -type DomainGraphicSpiceStreaming struct { - Mode string `xml:"mode,attr"` -} - -type DomainGraphicSpiceMouse struct { - Mode string `xml:"mode,attr"` -} - -type DomainGraphicSpiceClipBoard struct { - CopyPaste string `xml:"copypaste,attr"` -} - -type DomainGraphicSpiceFileTransfer struct { - Enable string `xml:"enable,attr"` -} - -type DomainGraphicSpiceGL struct { - Enable string `xml:"enable,attr,omitempty"` - RenderNode string `xml:"rendernode,attr,omitempty"` -} - -type DomainGraphicSpice struct { - Port int `xml:"port,attr,omitempty"` - TLSPort int `xml:"tlsPort,attr,omitempty"` - AutoPort string `xml:"autoport,attr,omitempty"` - Listen string `xml:"listen,attr,omitempty"` - Keymap string `xml:"keymap,attr,omitempty"` - DefaultMode string `xml:"defaultMode,attr,omitempty"` - Passwd string `xml:"passwd,attr,omitempty"` - PasswdValidTo string `xml:"passwdValidTo,attr,omitempty"` - Connected string `xml:"connected,attr,omitempty"` - Listeners []DomainGraphicListener `xml:"listen"` - Channel []DomainGraphicSpiceChannel `xml:"channel"` - Image *DomainGraphicSpiceImage `xml:"image"` - JPEG *DomainGraphicSpiceJPEG `xml:"jpeg"` - ZLib *DomainGraphicSpiceZLib `xml:"zlib"` - Playback *DomainGraphicSpicePlayback `xml:"playback"` - Streaming *DomainGraphicSpiceStreaming `xml:"streaming"` - Mouse *DomainGraphicSpiceMouse `xml:"mouse"` - ClipBoard *DomainGraphicSpiceClipBoard `xml:"clipboard"` - FileTransfer *DomainGraphicSpiceFileTransfer `xml:"filetransfer"` - GL *DomainGraphicSpiceGL `xml:"gl"` -} - -type DomainGraphicEGLHeadlessGL struct { - RenderNode string `xml:"rendernode,attr,omitempty"` -} - -type DomainGraphicEGLHeadless struct { - GL *DomainGraphicEGLHeadlessGL `xml:"gl"` -} - -type DomainGraphicDBusGL struct { - Enable string `xml:"enable,attr,omitempty"` - RenderNode string `xml:"rendernode,attr,omitempty"` -} - -type DomainGraphicDBus struct { - Address string `xml:"address,attr,omitempty"` - P2P string `xml:"p2p,attr,omitempty"` - GL *DomainGraphicDBusGL `xml:"gl"` -} - -type DomainGraphicAudio struct { - ID uint `xml:"id,attr,omitempty"` -} - -type DomainGraphic struct { - XMLName xml.Name `xml:"graphics"` - SDL *DomainGraphicSDL `xml:"-"` - VNC *DomainGraphicVNC `xml:"-"` - RDP *DomainGraphicRDP `xml:"-"` - Desktop *DomainGraphicDesktop `xml:"-"` - Spice *DomainGraphicSpice `xml:"-"` - EGLHeadless *DomainGraphicEGLHeadless `xml:"-"` - DBus *DomainGraphicDBus `xml:"-"` - Audio *DomainGraphicAudio `xml:"audio"` -} - -type DomainVideoAccel struct { - Accel3D string `xml:"accel3d,attr,omitempty"` - Accel2D string `xml:"accel2d,attr,omitempty"` - RenderNode string `xml:"rendernode,attr,omitempty"` -} - -type DomainVideoResolution struct { - X uint `xml:"x,attr"` - Y uint `xml:"y,attr"` -} - -type DomainVideoModel struct { - Type string `xml:"type,attr,omitempty"` - Heads uint `xml:"heads,attr,omitempty"` - Ram uint `xml:"ram,attr,omitempty"` - VRam uint `xml:"vram,attr,omitempty"` - VRam64 uint `xml:"vram64,attr,omitempty"` - VGAMem uint `xml:"vgamem,attr,omitempty"` - Primary string `xml:"primary,attr,omitempty"` - Blob string `xml:"blob,attr,omitempty"` - EDID string `xml:"edid,attr,omitempty"` - Device string `xml:"device,attr,omitempty"` - Accel *DomainVideoAccel `xml:"acceleration"` - Resolution *DomainVideoResolution `xml:"resolution"` -} - -type DomainVideo struct { - XMLName xml.Name `xml:"video"` - Model DomainVideoModel `xml:"model"` - Driver *DomainVideoDriver `xml:"driver"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainVideoDriver struct { - Name string `xml:"name,attr,omitempty"` - VGAConf string `xml:"vgaconf,attr,omitempty"` - IOMMU string `xml:"iommu,attr,omitempty"` - ATS string `xml:"ats,attr,omitempty"` - Packed string `xml:"packed,attr,omitempty"` - PagePerVQ string `xml:"page_per_vq,attr,omitempty"` -} - -type DomainMemBalloonStats struct { - Period uint `xml:"period,attr"` -} - -type DomainMemBalloon struct { - XMLName xml.Name `xml:"memballoon"` - Model string `xml:"model,attr"` - AutoDeflate string `xml:"autodeflate,attr,omitempty"` - FreePageReporting string `xml:"freePageReporting,attr,omitempty"` - Driver *DomainMemBalloonDriver `xml:"driver"` - Stats *DomainMemBalloonStats `xml:"stats"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainVSockCID struct { - Auto string `xml:"auto,attr,omitempty"` - Address string `xml:"address,attr,omitempty"` -} - -type DomainVSockDriver struct { - IOMMU string `xml:"iommu,attr,omitempty"` - ATS string `xml:"ats,attr,omitempty"` - Packed string `xml:"packed,attr,omitempty"` - PagePerVQ string `xml:"page_per_vq,attr,omitempty"` -} - -type DomainVSock struct { - XMLName xml.Name `xml:"vsock"` - Model string `xml:"model,attr,omitempty"` - CID *DomainVSockCID `xml:"cid"` - Driver *DomainVSockDriver `xml:"driver"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainMemBalloonDriver struct { - IOMMU string `xml:"iommu,attr,omitempty"` - ATS string `xml:"ats,attr,omitempty"` - Packed string `xml:"packed,attr,omitempty"` - PagePerVQ string `xml:"page_per_vq,attr,omitempty"` -} - -type DomainPanic struct { - XMLName xml.Name `xml:"panic"` - Model string `xml:"model,attr,omitempty"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainSoundDriver struct { - IOMMU string `xml:"iommu,attr,omitempty"` - ATS string `xml:"ats,attr,omitempty"` - Packed string `xml:"packed,attr,omitempty"` - PagePerVQ string `xml:"page_per_vq,attr,omitempty"` -} - -type DomainSoundCodec struct { - Type string `xml:"type,attr"` -} - -type DomainSound struct { - XMLName xml.Name `xml:"sound"` - Model string `xml:"model,attr"` - MultiChannel string `xml:"multichannel,attr,omitempty"` - Streams uint `xml:"streams,attr,omitempty"` - Codec []DomainSoundCodec `xml:"codec"` - Audio *DomainSoundAudio `xml:"audio"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Driver *DomainSoundDriver `xml:"driver"` - Address *DomainAddress `xml:"address"` -} - -type DomainSoundAudio struct { - ID uint `xml:"id,attr"` -} - -type DomainAudio struct { - XMLName xml.Name `xml:"audio"` - ID int `xml:"id,attr"` - TimerPeriod uint `xml:"timerPeriod,attr,omitempty"` - None *DomainAudioNone `xml:"-"` - ALSA *DomainAudioALSA `xml:"-"` - CoreAudio *DomainAudioCoreAudio `xml:"-"` - Jack *DomainAudioJack `xml:"-"` - OSS *DomainAudioOSS `xml:"-"` - PulseAudio *DomainAudioPulseAudio `xml:"-"` - SDL *DomainAudioSDL `xml:"-"` - SPICE *DomainAudioSPICE `xml:"-"` - File *DomainAudioFile `xml:"-"` - DBus *DomainAudioDBus `xml:"-"` - PipeWire *DomainAudioPipeWire `xml:"-"` -} - -type DomainAudioChannel struct { - MixingEngine string `xml:"mixingEngine,attr,omitempty"` - FixedSettings string `xml:"fixedSettings,attr,omitempty"` - Voices uint `xml:"voices,attr,omitempty"` - Settings *DomainAudioChannelSettings `xml:"settings"` - BufferLength uint `xml:"bufferLength,attr,omitempty"` -} - -type DomainAudioChannelSettings struct { - Frequency uint `xml:"frequency,attr,omitempty"` - Channels uint `xml:"channels,attr,omitempty"` - Format string `xml:"format,attr,omitempty"` -} - -type DomainAudioNone struct { - Input *DomainAudioNoneChannel `xml:"input"` - Output *DomainAudioNoneChannel `xml:"output"` -} - -type DomainAudioNoneChannel struct { - DomainAudioChannel -} - -type DomainAudioALSA struct { - Input *DomainAudioALSAChannel `xml:"input"` - Output *DomainAudioALSAChannel `xml:"output"` -} - -type DomainAudioALSAChannel struct { - DomainAudioChannel - Dev string `xml:"dev,attr,omitempty"` -} - -type DomainAudioCoreAudio struct { - Input *DomainAudioCoreAudioChannel `xml:"input"` - Output *DomainAudioCoreAudioChannel `xml:"output"` -} - -type DomainAudioCoreAudioChannel struct { - DomainAudioChannel - BufferCount uint `xml:"bufferCount,attr,omitempty"` -} - -type DomainAudioJack struct { - Input *DomainAudioJackChannel `xml:"input"` - Output *DomainAudioJackChannel `xml:"output"` -} - -type DomainAudioJackChannel struct { - DomainAudioChannel - ServerName string `xml:"serverName,attr,omitempty"` - ClientName string `xml:"clientName,attr,omitempty"` - ConnectPorts string `xml:"connectPorts,attr,omitempty"` - ExactName string `xml:"exactName,attr,omitempty"` -} - -type DomainAudioOSS struct { - TryMMap string `xml:"tryMMap,attr,omitempty"` - Exclusive string `xml:"exclusive,attr,omitempty"` - DSPPolicy *int `xml:"dspPolicy,attr"` - - Input *DomainAudioOSSChannel `xml:"input"` - Output *DomainAudioOSSChannel `xml:"output"` -} - -type DomainAudioOSSChannel struct { - DomainAudioChannel - Dev string `xml:"dev,attr,omitempty"` - BufferCount uint `xml:"bufferCount,attr,omitempty"` - TryPoll string `xml:"tryPoll,attr,omitempty"` -} - -type DomainAudioPulseAudio struct { - ServerName string `xml:"serverName,attr,omitempty"` - Input *DomainAudioPulseAudioChannel `xml:"input"` - Output *DomainAudioPulseAudioChannel `xml:"output"` -} - -type DomainAudioPulseAudioChannel struct { - DomainAudioChannel - Name string `xml:"name,attr,omitempty"` - StreamName string `xml:"streamName,attr,omitempty"` - Latency uint `xml:"latency,attr,omitempty"` -} - -type DomainAudioPipeWire struct { - RuntimeDir string `xml:"runtimeDir,attr,omitempty"` - Input *DomainAudioPulseAudioChannel `xml:"input"` - Output *DomainAudioPulseAudioChannel `xml:"output"` -} - -type DomainAudioPipeWireChannel struct { - DomainAudioChannel - Name string `xml:"name,attr,omitempty"` - StreamName string `xml:"streamName,attr,omitempty"` - Latency uint `xml:"latency,attr,omitempty"` -} - -type DomainAudioSDL struct { - Driver string `xml:"driver,attr,omitempty"` - Input *DomainAudioSDLChannel `xml:"input"` - Output *DomainAudioSDLChannel `xml:"output"` -} - -type DomainAudioSDLChannel struct { - DomainAudioChannel - BufferCount uint `xml:"bufferCount,attr,omitempty"` -} - -type DomainAudioSPICE struct { - Input *DomainAudioSPICEChannel `xml:"input"` - Output *DomainAudioSPICEChannel `xml:"output"` -} - -type DomainAudioSPICEChannel struct { - DomainAudioChannel -} - -type DomainAudioFile struct { - Path string `xml:"path,attr,omitempty"` - Input *DomainAudioFileChannel `xml:"input"` - Output *DomainAudioFileChannel `xml:"output"` -} - -type DomainAudioFileChannel struct { - DomainAudioChannel -} - -type DomainAudioDBus struct { - Input *DomainAudioDBusChannel `xml:"input"` - Output *DomainAudioDBusChannel `xml:"output"` -} - -type DomainAudioDBusChannel struct { - DomainAudioChannel -} - -type DomainRNGRate struct { - Bytes uint `xml:"bytes,attr"` - Period uint `xml:"period,attr,omitempty"` -} - -type DomainRNGBackend struct { - Random *DomainRNGBackendRandom `xml:"-"` - EGD *DomainRNGBackendEGD `xml:"-"` - BuiltIn *DomainRNGBackendBuiltIn `xml:"-"` -} - -type DomainRNGBackendEGD struct { - Source *DomainChardevSource `xml:"source"` - Protocol *DomainChardevProtocol `xml:"protocol"` -} - -type DomainRNGBackendRandom struct { - Device string `xml:",chardata"` -} - -type DomainRNGBackendBuiltIn struct { -} - -type DomainRNG struct { - XMLName xml.Name `xml:"rng"` - Model string `xml:"model,attr"` - Driver *DomainRNGDriver `xml:"driver"` - Rate *DomainRNGRate `xml:"rate"` - Backend *DomainRNGBackend `xml:"backend"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainRNGDriver struct { - IOMMU string `xml:"iommu,attr,omitempty"` - ATS string `xml:"ats,attr,omitempty"` - Packed string `xml:"packed,attr,omitempty"` - PagePerVQ string `xml:"page_per_vq,attr,omitempty"` -} - -type DomainHostdevSubsysUSB struct { - Source *DomainHostdevSubsysUSBSource `xml:"source"` -} - -type DomainHostdevSubsysUSBSource struct { - GuestReset string `xml:"guestReset,attr,omitempty"` - StartUpPolicy string `xml:"startupPolicy,attr,omitempty"` - Address *DomainAddressUSB `xml:"address"` - Product *DomainHostDevProductVendorID `xml:"product"` - Vendor *DomainHostDevProductVendorID `xml:"vendor"` -} - -type DomainHostDevProductVendorID struct { - ID string `xml:"id,attr,omitempty"` -} - -type DomainHostdevSubsysSCSI struct { - SGIO string `xml:"sgio,attr,omitempty"` - RawIO string `xml:"rawio,attr,omitempty"` - Source *DomainHostdevSubsysSCSISource `xml:"source"` - ReadOnly *DomainDiskReadOnly `xml:"readonly"` - Shareable *DomainDiskShareable `xml:"shareable"` -} - -type DomainHostdevSubsysSCSISource struct { - Host *DomainHostdevSubsysSCSISourceHost `xml:"-"` - ISCSI *DomainHostdevSubsysSCSISourceISCSI `xml:"-"` -} - -type DomainHostdevSubsysSCSIAdapter struct { - Name string `xml:"name,attr"` -} - -type DomainHostdevSubsysSCSISourceHost struct { - Adapter *DomainHostdevSubsysSCSIAdapter `xml:"adapter"` - Address *DomainAddressDrive `xml:"address"` -} - -type DomainHostdevSubsysSCSISourceISCSI struct { - Name string `xml:"name,attr"` - Host []DomainDiskSourceHost `xml:"host"` - Auth *DomainDiskAuth `xml:"auth"` - Initiator *DomainHostdevSubsysSCSISourceInitiator `xml:"initiator"` -} - -type DomainHostdevSubsysSCSISourceInitiator struct { - IQN DomainHostdevSubsysSCSISourceIQN `xml:"iqn"` -} - -type DomainHostdevSubsysSCSISourceIQN struct { - Name string `xml:"name,attr"` -} - -type DomainHostdevSubsysSCSIHost struct { - Model string `xml:"model,attr,omitempty"` - Source *DomainHostdevSubsysSCSIHostSource `xml:"source"` -} - -type DomainHostdevSubsysSCSIHostSource struct { - Protocol string `xml:"protocol,attr,omitempty"` - WWPN string `xml:"wwpn,attr,omitempty"` -} - -type DomainHostdevSubsysPCISource struct { - WriteFiltering string `xml:"writeFiltering,attr,omitempty"` - Address *DomainAddressPCI `xml:"address"` -} - -type DomainHostdevSubsysPCIDriver struct { - Name string `xml:"name,attr,omitempty"` - Model string `xml:"model,attr,omitempty"` - IommuFD string `xml:"iommufd,attr,omitempty"` -} - -type DomainHostdevSubsysPCI struct { - Display string `xml:"display,attr,omitempty"` - RamFB string `xml:"ramfb,attr,omitempty"` - Driver *DomainHostdevSubsysPCIDriver `xml:"driver"` - Source *DomainHostdevSubsysPCISource `xml:"source"` - Teaming *DomainInterfaceTeaming `xml:"teaming"` -} - -type DomainAddressMDev struct { - UUID string `xml:"uuid,attr"` -} - -type DomainHostdevSubsysMDevSource struct { - Address *DomainAddressMDev `xml:"address"` -} - -type DomainHostdevSubsysMDev struct { - Model string `xml:"model,attr,omitempty"` - Display string `xml:"display,attr,omitempty"` - RamFB string `xml:"ramfb,attr,omitempty"` - Source *DomainHostdevSubsysMDevSource `xml:"source"` -} - -type DomainHostdevCapsStorage struct { - Source *DomainHostdevCapsStorageSource `xml:"source"` -} - -type DomainHostdevCapsStorageSource struct { - Block string `xml:"block"` -} - -type DomainHostdevCapsMisc struct { - Source *DomainHostdevCapsMiscSource `xml:"source"` -} - -type DomainHostdevCapsMiscSource struct { - Char string `xml:"char"` -} - -type DomainIP struct { - Address string `xml:"address,attr,omitempty"` - Family string `xml:"family,attr,omitempty"` - Prefix *uint `xml:"prefix,attr"` -} - -type DomainRoute struct { - Family string `xml:"family,attr,omitempty"` - Address string `xml:"address,attr,omitempty"` - Gateway string `xml:"gateway,attr,omitempty"` -} - -type DomainHostdevCapsNet struct { - Source *DomainHostdevCapsNetSource `xml:"source"` - IP []DomainIP `xml:"ip"` - Route []DomainRoute `xml:"route"` -} - -type DomainHostdevCapsNetSource struct { - Interface string `xml:"interface"` -} - -type DomainHostdev struct { - Managed string `xml:"managed,attr,omitempty"` - SubsysUSB *DomainHostdevSubsysUSB `xml:"-"` - SubsysSCSI *DomainHostdevSubsysSCSI `xml:"-"` - SubsysSCSIHost *DomainHostdevSubsysSCSIHost `xml:"-"` - SubsysPCI *DomainHostdevSubsysPCI `xml:"-"` - SubsysMDev *DomainHostdevSubsysMDev `xml:"-"` - CapsStorage *DomainHostdevCapsStorage `xml:"-"` - CapsMisc *DomainHostdevCapsMisc `xml:"-"` - CapsNet *DomainHostdevCapsNet `xml:"-"` - Boot *DomainDeviceBoot `xml:"boot"` - ROM *DomainROM `xml:"rom"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainMemorydevSource struct { - NodeMask string `xml:"nodemask,omitempty"` - PageSize *DomainMemorydevSourcePagesize `xml:"pagesize"` - Path string `xml:"path,omitempty"` - AlignSize *DomainMemorydevSourceAlignsize `xml:"alignsize"` - PMem *DomainMemorydevSourcePMem `xml:"pmem"` -} - -type DomainMemorydevSourcePMem struct { -} - -type DomainMemorydevSourcePagesize struct { - Value uint64 `xml:",chardata"` - Unit string `xml:"unit,attr,omitempty"` -} - -type DomainMemorydevSourceAlignsize struct { - Value uint64 `xml:",chardata"` - Unit string `xml:"unit,attr,omitempty"` -} - -type DomainMemorydevTargetNode struct { - Value uint `xml:",chardata"` -} - -type DomainMemorydevTargetReadOnly struct { -} - -type DomainMemorydevTargetSize struct { - Value uint `xml:",chardata"` - Unit string `xml:"unit,attr,omitempty"` -} - -type DomainMemorydevTargetBlock struct { - Value uint `xml:",chardata"` - Unit string `xml:"unit,attr,omitempty"` -} - -type DomainMemorydevTargetRequested struct { - Value uint `xml:",chardata"` - Unit string `xml:"unit,attr,omitempty"` -} - -type DomainMemorydevTargetLabel struct { - Size *DomainMemorydevTargetSize `xml:"size"` -} - -type DomainMemorydevTargetAddress struct { - Base *uint `xml:"base,attr"` -} - -type DomainMemorydevTarget struct { - DynamicMemslots string `xml:"dynamicMemslots,attr,omitempty"` - Size *DomainMemorydevTargetSize `xml:"size"` - Node *DomainMemorydevTargetNode `xml:"node"` - Label *DomainMemorydevTargetLabel `xml:"label"` - Block *DomainMemorydevTargetBlock `xml:"block"` - Requested *DomainMemorydevTargetRequested `xml:"requested"` - ReadOnly *DomainMemorydevTargetReadOnly `xml:"readonly"` - Address *DomainMemorydevTargetAddress `xml:"address"` -} - -type DomainMemorydevDriver struct { - IOMMU string `xml:"iommu,attr,omitempty"` - ATS string `xml:"ats,attr,omitempty"` - Packed string `xml:"packed,attr,omitempty"` - PagePerVQ string `xml:"page_per_vq,attr,omitempty"` -} - -type DomainMemorydev struct { - XMLName xml.Name `xml:"memory"` - Model string `xml:"model,attr"` - Access string `xml:"access,attr,omitempty"` - Discard string `xml:"discard,attr,omitempty"` - Driver *DomainMemorydevDriver `xml:"driver"` - UUID string `xml:"uuid,omitempty"` - Source *DomainMemorydevSource `xml:"source"` - Target *DomainMemorydevTarget `xml:"target"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainWatchdog struct { - XMLName xml.Name `xml:"watchdog"` - Model string `xml:"model,attr"` - Action string `xml:"action,attr,omitempty"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainHub struct { - Type string `xml:"type,attr"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainIOMMU struct { - Model string `xml:"model,attr"` - Driver *DomainIOMMUDriver `xml:"driver"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainIOMMUDriver struct { - IntRemap string `xml:"intremap,attr,omitempty"` - CachingMode string `xml:"caching_mode,attr,omitempty"` - EIM string `xml:"eim,attr,omitempty"` - IOTLB string `xml:"iotlb,attr,omitempty"` - AWBits uint `xml:"aw_bits,attr,omitempty"` - DMATranslation string `xml:"dma_translation,attr,omitempty"` - Passthrough string `xml:"passthrough,attr,omitempty"` - XTSup string `xml:"xtsup,attr,omitempty"` - PCIBus uint `xml:"pciBus,attr,omitempty"` - Granule *DomainIOMMUDriverGranule `xml:"granule"` -} - -type DomainIOMMUDriverGranule struct { - Size uint `xml:"size,attr,omitempty"` - Unit string `xml:"unit,attr,omitempty"` - Mode string `xml:"mode,attr,omitempty"` -} - -type DomainNVRAM struct { - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainLease struct { - Lockspace string `xml:"lockspace"` - Key string `xml:"key"` - Target *DomainLeaseTarget `xml:"target"` -} - -type DomainLeaseTarget struct { - Path string `xml:"path,attr"` - Offset uint64 `xml:"offset,attr,omitempty"` -} - -type DomainSmartcard struct { - XMLName xml.Name `xml:"smartcard"` - Passthrough *DomainChardevSource `xml:"source"` - Protocol *DomainChardevProtocol `xml:"protocol"` - Host *DomainSmartcardHost `xml:"-"` - HostCerts []DomainSmartcardHostCert `xml:"certificate"` - Database string `xml:"database,omitempty"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainSmartcardHost struct { -} - -type DomainSmartcardHostCert struct { - File string `xml:",chardata"` -} - -type DomainTPM struct { - XMLName xml.Name `xml:"tpm"` - Model string `xml:"model,attr,omitempty"` - Backend *DomainTPMBackend `xml:"backend"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainTPMBackend struct { - Passthrough *DomainTPMBackendPassthrough `xml:"-"` - Emulator *DomainTPMBackendEmulator `xml:"-"` - External *DomainTPMBackendExternal `xml:"-"` -} - -type DomainTPMBackendPassthrough struct { - Device *DomainTPMBackendDevice `xml:"device"` -} - -type DomainTPMBackendEmulator struct { - Version string `xml:"version,attr,omitempty"` - Encryption *DomainTPMBackendEncryption `xml:"encryption"` - PersistentState string `xml:"persistent_state,attr,omitempty"` - Debug uint `xml:"debug,attr,omitempty"` - ActivePCRBanks *DomainTPMBackendPCRBanks `xml:"active_pcr_banks"` - Source *DomainTPMBackendSource `xml:"source"` - Profile *DomainTPMBackendProfile `xml:"profile"` -} - -type DomainTPMBackendProfile struct { - Source string `xml:"source,attr,omitempty"` - RemoveDisabled string `xml:"removeDisabled,attr,omitempty"` - Name string `xml:"name,attr,omitempty"` -} - -type DomainTPMBackendSource struct { - File *DomainTPMBackendSourceFile `xml:"-"` - Dir *DomainTPMBackendSourceDir `xml:"-"` -} - -type DomainTPMBackendSourceFile struct { - Path string `xml:"path,attr,omitempty"` -} - -type DomainTPMBackendSourceDir struct { - Path string `xml:"path,attr,omitempty"` -} - -type DomainTPMBackendPCRBanks struct { - SHA1 *DomainTPMBackendPCRBank `xml:"sha1"` - SHA256 *DomainTPMBackendPCRBank `xml:"sha256"` - SHA384 *DomainTPMBackendPCRBank `xml:"sha384"` - SHA512 *DomainTPMBackendPCRBank `xml:"sha512"` -} - -type DomainTPMBackendPCRBank struct { -} - -type DomainTPMBackendEncryption struct { - Secret string `xml:"secret,attr"` -} - -type DomainTPMBackendDevice struct { - Path string `xml:"path,attr"` -} - -type DomainTPMBackendExternalSource DomainChardevSource - -type DomainTPMBackendExternal struct { - Source *DomainTPMBackendExternalSource `xml:"source"` -} - -type DomainShmem struct { - XMLName xml.Name `xml:"shmem"` - Name string `xml:"name,attr"` - Role string `xml:"role,attr,omitempty"` - Size *DomainShmemSize `xml:"size"` - Model *DomainShmemModel `xml:"model"` - Server *DomainShmemServer `xml:"server"` - MSI *DomainShmemMSI `xml:"msi"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainShmemSize struct { - Value uint `xml:",chardata"` - Unit string `xml:"unit,attr,omitempty"` -} - -type DomainShmemModel struct { - Type string `xml:"type,attr"` -} - -type DomainShmemServer struct { - Path string `xml:"path,attr,omitempty"` -} - -type DomainShmemMSI struct { - Enabled string `xml:"enabled,attr,omitempty"` - Vectors uint `xml:"vectors,attr,omitempty"` - IOEventFD string `xml:"ioeventfd,attr,omitempty"` -} - -type DomainCrypto struct { - Model string `xml:"model,attr,omitempty"` - Type string `xml:"type,attr,omitempty"` - Backend *DomainCryptoBackend `xml:"backend"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainCryptoBackend struct { - BuiltIn *DomainCryptoBackendBuiltIn `xml:"-"` - LKCF *DomainCryptoBackendLKCF `xml:"-"` - Queues uint `xml:"queues,attr,omitempty"` -} - -type DomainCryptoBackendBuiltIn struct { -} - -type DomainCryptoBackendLKCF struct { -} - -type DomainPStore struct { - Backend string `xml:"backend,attr"` - Path string `xml:"path"` - Size DomainPStoreSize `xml:"size"` - ACPI *DomainDeviceACPI `xml:"acpi"` - Alias *DomainAlias `xml:"alias"` - Address *DomainAddress `xml:"address"` -} - -type DomainPStoreSize struct { - Size uint64 `xml:",chardata"` - Unit string `xml:"unit,attr"` -} - -type DomainDeviceList struct { - Emulator string `xml:"emulator,omitempty"` - Disks []DomainDisk `xml:"disk"` - Controllers []DomainController `xml:"controller"` - Leases []DomainLease `xml:"lease"` - Filesystems []DomainFilesystem `xml:"filesystem"` - Interfaces []DomainInterface `xml:"interface"` - Smartcards []DomainSmartcard `xml:"smartcard"` - Serials []DomainSerial `xml:"serial"` - Parallels []DomainParallel `xml:"parallel"` - Consoles []DomainConsole `xml:"console"` - Channels []DomainChannel `xml:"channel"` - Inputs []DomainInput `xml:"input"` - TPMs []DomainTPM `xml:"tpm"` - Graphics []DomainGraphic `xml:"graphics"` - Sounds []DomainSound `xml:"sound"` - Audios []DomainAudio `xml:"audio"` - Videos []DomainVideo `xml:"video"` - Hostdevs []DomainHostdev `xml:"hostdev"` - RedirDevs []DomainRedirDev `xml:"redirdev"` - RedirFilters []DomainRedirFilter `xml:"redirfilter"` - Hubs []DomainHub `xml:"hub"` - Watchdogs []DomainWatchdog `xml:"watchdog"` - MemBalloon *DomainMemBalloon `xml:"memballoon"` - RNGs []DomainRNG `xml:"rng"` - NVRAM *DomainNVRAM `xml:"nvram"` - Panics []DomainPanic `xml:"panic"` - Shmems []DomainShmem `xml:"shmem"` - Memorydevs []DomainMemorydev `xml:"memory"` - IOMMU *DomainIOMMU `xml:"-"` - IOMMUs []DomainIOMMU `xml:"iommu"` - VSock *DomainVSock `xml:"vsock"` - Crypto []DomainCrypto `xml:"crypto"` - PStore *DomainPStore `xml:"pstore"` -} - -type DomainMemory struct { - Value uint `xml:",chardata"` - Unit string `xml:"unit,attr,omitempty"` - DumpCore string `xml:"dumpCore,attr,omitempty"` -} - -type DomainCurrentMemory struct { - Value uint `xml:",chardata"` - Unit string `xml:"unit,attr,omitempty"` -} - -type DomainMaxMemory struct { - Value uint `xml:",chardata"` - Unit string `xml:"unit,attr,omitempty"` - Slots uint `xml:"slots,attr,omitempty"` -} - -type DomainMemoryHugepage struct { - Size uint `xml:"size,attr"` - Unit string `xml:"unit,attr,omitempty"` - Nodeset string `xml:"nodeset,attr,omitempty"` -} - -type DomainMemoryHugepages struct { - Hugepages []DomainMemoryHugepage `xml:"page"` -} - -type DomainMemoryNosharepages struct { -} - -type DomainMemoryLocked struct { -} - -type DomainMemorySource struct { - Type string `xml:"type,attr,omitempty"` -} - -type DomainMemoryAccess struct { - Mode string `xml:"mode,attr,omitempty"` -} - -type DomainMemoryAllocation struct { - Mode string `xml:"mode,attr,omitempty"` - Threads uint `xml:"threads,attr,omitempty"` -} - -type DomainMemoryDiscard struct { -} - -type DomainMemoryBacking struct { - MemoryHugePages *DomainMemoryHugepages `xml:"hugepages"` - MemoryNosharepages *DomainMemoryNosharepages `xml:"nosharepages"` - MemoryLocked *DomainMemoryLocked `xml:"locked"` - MemorySource *DomainMemorySource `xml:"source"` - MemoryAccess *DomainMemoryAccess `xml:"access"` - MemoryAllocation *DomainMemoryAllocation `xml:"allocation"` - MemoryDiscard *DomainMemoryDiscard `xml:"discard"` -} - -type DomainOSType struct { - Arch string `xml:"arch,attr,omitempty"` - Machine string `xml:"machine,attr,omitempty"` - Type string `xml:",chardata"` -} - -type DomainSMBios struct { - Mode string `xml:"mode,attr"` -} - -type DomainNVRam struct { - NVRam string `xml:",chardata"` - Source *DomainDiskSource `xml:"source"` - Template string `xml:"template,attr,omitempty"` - Format string `xml:"format,attr,omitempty"` - TemplateFormat string `xml:"templateFormat,attr,omitempty"` -} - -type DomainVarStore struct { - Path string `xml:"path,attr,omitempty"` - Template string `xml:"template,attr,omitempty"` -} - -type DomainBootDevice struct { - Dev string `xml:"dev,attr"` -} - -type DomainBootMenu struct { - Enable string `xml:"enable,attr,omitempty"` - Timeout string `xml:"timeout,attr,omitempty"` -} - -type DomainSysInfoBIOS struct { - Entry []DomainSysInfoEntry `xml:"entry"` -} - -type DomainSysInfoSystem struct { - Entry []DomainSysInfoEntry `xml:"entry"` -} - -type DomainSysInfoBaseBoard struct { - Entry []DomainSysInfoEntry `xml:"entry"` -} - -type DomainSysInfoProcessor struct { - Entry []DomainSysInfoEntry `xml:"entry"` -} - -type DomainSysInfoMemory struct { - Entry []DomainSysInfoEntry `xml:"entry"` -} - -type DomainSysInfoChassis struct { - Entry []DomainSysInfoEntry `xml:"entry"` -} - -type DomainSysInfoOEMStrings struct { - Entry []string `xml:"entry"` -} - -type DomainSysInfoSMBIOS struct { - BIOS *DomainSysInfoBIOS `xml:"bios"` - System *DomainSysInfoSystem `xml:"system"` - BaseBoard []DomainSysInfoBaseBoard `xml:"baseBoard"` - Chassis *DomainSysInfoChassis `xml:"chassis"` - Processor []DomainSysInfoProcessor `xml:"processor"` - Memory []DomainSysInfoMemory `xml:"memory"` - OEMStrings *DomainSysInfoOEMStrings `xml:"oemStrings"` -} - -type DomainSysInfoFWCfg struct { - Entry []DomainSysInfoEntry `xml:"entry"` -} - -type DomainSysInfo struct { - SMBIOS *DomainSysInfoSMBIOS `xml:"-"` - FWCfg *DomainSysInfoFWCfg `xml:"-"` -} - -type DomainSysInfoEntry struct { - Name string `xml:"name,attr"` - File string `xml:"file,attr,omitempty"` - Value string `xml:",chardata"` -} - -type DomainBIOS struct { - UseSerial string `xml:"useserial,attr,omitempty"` - RebootTimeout *int `xml:"rebootTimeout,attr"` -} - -type DomainLoader struct { - Path string `xml:",chardata"` - Readonly string `xml:"readonly,attr,omitempty"` - Secure string `xml:"secure,attr,omitempty"` - Stateless string `xml:"stateless,attr,omitempty"` - Type string `xml:"type,attr,omitempty"` - Format string `xml:"format,attr,omitempty"` -} - -type DomainACPI struct { - Tables []DomainACPITable `xml:"table"` -} - -type DomainACPITable struct { - Type string `xml:"type,attr"` - Path string `xml:",chardata"` -} - -type DomainOSInitEnv struct { - Name string `xml:"name,attr"` - Value string `xml:",chardata"` -} - -type DomainOSFirmwareInfo struct { - Features []DomainOSFirmwareFeature `xml:"feature"` -} - -type DomainOSFirmwareFeature struct { - Enabled string `xml:"enabled,attr,omitempty"` - Name string `xml:"name,attr,omitempty"` -} - -type DomainOS struct { - Type *DomainOSType `xml:"type"` - Firmware string `xml:"firmware,attr,omitempty"` - FirmwareInfo *DomainOSFirmwareInfo `xml:"firmware"` - Init string `xml:"init,omitempty"` - InitArgs []string `xml:"initarg"` - InitEnv []DomainOSInitEnv `xml:"initenv"` - InitDir string `xml:"initdir,omitempty"` - InitUser string `xml:"inituser,omitempty"` - InitGroup string `xml:"initgroup,omitempty"` - Loader *DomainLoader `xml:"loader"` - NVRam *DomainNVRam `xml:"nvram"` - VarStore *DomainVarStore `xml:"varstore"` - Kernel string `xml:"kernel,omitempty"` - Initrd string `xml:"initrd,omitempty"` - Cmdline string `xml:"cmdline,omitempty"` - Shim string `xml:"shim,omitempty"` - DTB string `xml:"dtb,omitempty"` - ACPI *DomainACPI `xml:"acpi"` - BootDevices []DomainBootDevice `xml:"boot"` - BootMenu *DomainBootMenu `xml:"bootmenu"` - BIOS *DomainBIOS `xml:"bios"` - SMBios *DomainSMBios `xml:"smbios"` -} - -type DomainResource struct { - Partition string `xml:"partition,omitempty"` - FibreChannel *DomainResourceFibreChannel `xml:"fibrechannel"` -} - -type DomainResourceFibreChannel struct { - AppID string `xml:"appid,attr"` -} - -type DomainIOMMUFD struct { - Enabled string `xml:"enabled,attr"` - FDGroup string `xml:"fdgroup,attr,omitempty"` -} - -type DomainVCPU struct { - Placement string `xml:"placement,attr,omitempty"` - CPUSet string `xml:"cpuset,attr,omitempty"` - Current uint `xml:"current,attr,omitempty"` - Value uint `xml:",chardata"` -} - -type DomainVCPUsVCPU struct { - Id *uint `xml:"id,attr"` - Enabled string `xml:"enabled,attr,omitempty"` - Hotpluggable string `xml:"hotpluggable,attr,omitempty"` - Order *uint `xml:"order,attr"` -} - -type DomainVCPUs struct { - VCPU []DomainVCPUsVCPU `xml:"vcpu"` -} - -type DomainCPUModel struct { - Fallback string `xml:"fallback,attr,omitempty"` - Value string `xml:",chardata"` - VendorID string `xml:"vendor_id,attr,omitempty"` -} - -type DomainCPUTopology struct { - Sockets int `xml:"sockets,attr,omitempty"` - Dies int `xml:"dies,attr,omitempty"` - Clusters int `xml:"clusters,attr,omitempty"` - Cores int `xml:"cores,attr,omitempty"` - Threads int `xml:"threads,attr,omitempty"` -} - -type DomainCPUFeature struct { - Policy string `xml:"policy,attr,omitempty"` - Name string `xml:"name,attr,omitempty"` -} - -type DomainCPUCache struct { - Level uint `xml:"level,attr,omitempty"` - Mode string `xml:"mode,attr"` -} - -type DomainCPUMaxPhysAddr struct { - Mode string `xml:"mode,attr"` - Bits uint `xml:"bits,attr,omitempty"` - Limit uint `xml:"limit,attr,omitempty"` -} - -type DomainCPU struct { - XMLName xml.Name `xml:"cpu"` - Match string `xml:"match,attr,omitempty"` - Mode string `xml:"mode,attr,omitempty"` - Check string `xml:"check,attr,omitempty"` - Migratable string `xml:"migratable,attr,omitempty"` - DeprecatedFeatures string `xml:"deprecated_features,attr,omitempty"` - Model *DomainCPUModel `xml:"model"` - Vendor string `xml:"vendor,omitempty"` - Topology *DomainCPUTopology `xml:"topology"` - Cache *DomainCPUCache `xml:"cache"` - MaxPhysAddr *DomainCPUMaxPhysAddr `xml:"maxphysaddr"` - Features []DomainCPUFeature `xml:"feature"` - Numa *DomainNuma `xml:"numa"` -} - -type DomainNuma struct { - Cell []DomainCell `xml:"cell"` - Interconnects *DomainNUMAInterconnects `xml:"interconnects"` -} - -type DomainCell struct { - ID *uint `xml:"id,attr"` - CPUs string `xml:"cpus,attr,omitempty"` - Memory uint `xml:"memory,attr"` - Unit string `xml:"unit,attr,omitempty"` - MemAccess string `xml:"memAccess,attr,omitempty"` - Discard string `xml:"discard,attr,omitempty"` - Distances *DomainCellDistances `xml:"distances"` - Caches []DomainCellCache `xml:"cache"` -} - -type DomainCellDistances struct { - Siblings []DomainCellSibling `xml:"sibling"` -} - -type DomainCellSibling struct { - ID uint `xml:"id,attr"` - Value uint `xml:"value,attr"` -} - -type DomainCellCache struct { - Level uint `xml:"level,attr"` - Associativity string `xml:"associativity,attr"` - Policy string `xml:"policy,attr"` - Size DomainCellCacheSize `xml:"size"` - Line DomainCellCacheLine `xml:"line"` -} - -type DomainCellCacheSize struct { - Value string `xml:"value,attr"` - Unit string `xml:"unit,attr"` -} - -type DomainCellCacheLine struct { - Value string `xml:"value,attr"` - Unit string `xml:"unit,attr"` -} - -type DomainNUMAInterconnects struct { - Latencies []DomainNUMAInterconnectLatency `xml:"latency"` - Bandwidths []DomainNUMAInterconnectBandwidth `xml:"bandwidth"` -} - -type DomainNUMAInterconnectLatency struct { - Initiator uint `xml:"initiator,attr"` - Target uint `xml:"target,attr"` - Cache uint `xml:"cache,attr,omitempty"` - Type string `xml:"type,attr"` - Value uint `xml:"value,attr"` -} - -type DomainNUMAInterconnectBandwidth struct { - Initiator uint `xml:"initiator,attr"` - Target uint `xml:"target,attr"` - Cache uint `xml:"cache,attr,omitempty"` - Type string `xml:"type,attr"` - Value uint `xml:"value,attr"` - Unit string `xml:"unit,attr"` -} - -type DomainClock struct { - Offset string `xml:"offset,attr,omitempty"` - Basis string `xml:"basis,attr,omitempty"` - Adjustment string `xml:"adjustment,attr,omitempty"` - TimeZone string `xml:"timezone,attr,omitempty"` - Start uint `xml:"start,attr,omitempty"` - Timer []DomainTimer `xml:"timer"` -} - -type DomainTimer struct { - Name string `xml:"name,attr"` - Track string `xml:"track,attr,omitempty"` - TickPolicy string `xml:"tickpolicy,attr,omitempty"` - CatchUp *DomainTimerCatchUp `xml:"catchup"` - Frequency uint64 `xml:"frequency,attr,omitempty"` - Mode string `xml:"mode,attr,omitempty"` - Present string `xml:"present,attr,omitempty"` -} - -type DomainTimerCatchUp struct { - Threshold uint `xml:"threshold,attr,omitempty"` - Slew uint `xml:"slew,attr,omitempty"` - Limit uint `xml:"limit,attr,omitempty"` -} - -type DomainFeature struct { -} - -type DomainFeatureState struct { - State string `xml:"state,attr,omitempty"` -} - -type DomainFeatureAPIC struct { - EOI string `xml:"eoi,attr,omitempty"` -} - -type DomainFeatureHyperVVendorId struct { - DomainFeatureState - Value string `xml:"value,attr,omitempty"` -} - -type DomainFeatureHyperVSpinlocks struct { - DomainFeatureState - Retries uint `xml:"retries,attr,omitempty"` -} - -type DomainFeatureHyperVSTimer struct { - DomainFeatureState - Direct *DomainFeatureState `xml:"direct"` -} - -type DomainFeatureHyperVTLBFlush struct { - DomainFeatureState - Direct *DomainFeatureState `xml:"direct"` - Extended *DomainFeatureState `xml:"extended"` -} - -type DomainFeatureHyperV struct { - DomainFeature - Mode string `xml:"mode,attr,omitempty"` - Relaxed *DomainFeatureState `xml:"relaxed"` - VAPIC *DomainFeatureState `xml:"vapic"` - Spinlocks *DomainFeatureHyperVSpinlocks `xml:"spinlocks"` - VPIndex *DomainFeatureState `xml:"vpindex"` - Runtime *DomainFeatureState `xml:"runtime"` - Synic *DomainFeatureState `xml:"synic"` - STimer *DomainFeatureHyperVSTimer `xml:"stimer"` - Reset *DomainFeatureState `xml:"reset"` - VendorId *DomainFeatureHyperVVendorId `xml:"vendor_id"` - Frequencies *DomainFeatureState `xml:"frequencies"` - ReEnlightenment *DomainFeatureState `xml:"reenlightenment"` - TLBFlush *DomainFeatureHyperVTLBFlush `xml:"tlbflush"` - IPI *DomainFeatureState `xml:"ipi"` - EVMCS *DomainFeatureState `xml:"evmcs"` - AVIC *DomainFeatureState `xml:"avic"` - EMSRBitmap *DomainFeatureState `xml:"emsr_bitmap"` - XMMInput *DomainFeatureState `xml:"xmm_input"` -} - -type DomainFeatureKVMDirtyRing struct { - DomainFeatureState - Size uint `xml:"size,attr,omitempty"` -} - -type DomainFeatureKVM struct { - Hidden *DomainFeatureState `xml:"hidden"` - HintDedicated *DomainFeatureState `xml:"hint-dedicated"` - PollControl *DomainFeatureState `xml:"poll-control"` - PVIPI *DomainFeatureState `xml:"pv-ipi"` - DirtyRing *DomainFeatureKVMDirtyRing `xml:"dirty-ring"` -} - -type DomainFeatureTCGTBCache struct { - Unit string `xml:"unit,attr,omitempty"` - Size uint `xml:",chardata"` -} - -type DomainFeatureTCG struct { - TBCache *DomainFeatureTCGTBCache `xml:"tb-cache"` -} - -type DomainFeatureXenPassthrough struct { - State string `xml:"state,attr,omitempty"` - Mode string `xml:"mode,attr,omitempty"` -} - -type DomainFeatureXenE820Host struct { - State string `xml:"state,attr"` -} - -type DomainFeatureXen struct { - E820Host *DomainFeatureXenE820Host `xml:"e820_host"` - Passthrough *DomainFeatureXenPassthrough `xml:"passthrough"` -} - -type DomainFeatureGIC struct { - Version string `xml:"version,attr,omitempty"` -} - -type DomainFeatureIOAPIC struct { - Driver string `xml:"driver,attr,omitempty"` -} - -type DomainFeatureHPT struct { - Resizing string `xml:"resizing,attr,omitempty"` - MaxPageSize *DomainFeatureHPTPageSize `xml:"maxpagesize"` -} - -type DomainFeatureHPTPageSize struct { - Unit string `xml:"unit,attr,omitempty"` - Value string `xml:",chardata"` -} - -type DomainFeatureSMM struct { - State string `xml:"state,attr,omitempty"` - TSeg *DomainFeatureSMMTSeg `xml:"tseg"` -} - -type DomainFeatureSMMTSeg struct { - Unit string `xml:"unit,attr,omitempty"` - Value uint `xml:",chardata"` -} - -type DomainFeatureCapability struct { - State string `xml:"state,attr,omitempty"` -} - -type DomainLaunchSecurity struct { - SEV *DomainLaunchSecuritySEV `xml:"-"` - SEVSNP *DomainLaunchSecuritySEVSNP `xml:"-"` - S390PV *DomainLaunchSecurityS390PV `xml:"-"` - TDX *DomainLaunchSecurityTDX `xml:"-"` -} - -type DomainLaunchSecuritySEV struct { - KernelHashes string `xml:"kernelHashes,attr,omitempty"` - CBitPos *uint `xml:"cbitpos"` - ReducedPhysBits *uint `xml:"reducedPhysBits"` - Policy *uint `xml:"policy"` - DHCert string `xml:"dhCert"` - Session string `xml:"sesion"` -} - -type DomainLaunchSecuritySEVSNP struct { - KernelHashes string `xml:"kernelHashes,attr,omitempty"` - AuthorKey string `xml:"authorKey,attr,omitempty"` - VCEK string `xml:"vcek,attr,omitempty"` - CBitPos *uint `xml:"cbitpos"` - ReducedPhysBits *uint `xml:"reducedPhysBits"` - Policy *uint64 `xml:"policy"` - GuestVisibleWorkarounds string `xml:"guestVisibleWorkarounds,omitempty"` - IDBlock string `xml:"idBlock,omitempty"` - IDAuth string `xml:"idAuth,omitempty"` - HostData string `xml:"hostData,omitempty"` -} - -type DomainLaunchSecurityS390PV struct { -} - -type DomainLaunchSecurityTDX struct { - Policy *uint `xml:"policy"` - MrConfigId string `xml:"mrConfigId,omitempty"` - MrOwner string `xml:"mrOwner,omitempty"` - MrOwnerConfig string `xml:"mrOwnerConfig,omitempty"` - QuoteGenerationService *DomainLaunchSecurityTDXQGS `xml:"quoteGenerationService"` -} - -type DomainLaunchSecurityTDXQGS struct { - Path string `xml:"path,attr,omitempty"` -} - -type DomainFeatureCapabilities struct { - Policy string `xml:"policy,attr,omitempty"` - AuditControl *DomainFeatureCapability `xml:"audit_control"` - AuditWrite *DomainFeatureCapability `xml:"audit_write"` - BlockSuspend *DomainFeatureCapability `xml:"block_suspend"` - Chown *DomainFeatureCapability `xml:"chown"` - DACOverride *DomainFeatureCapability `xml:"dac_override"` - DACReadSearch *DomainFeatureCapability `xml:"dac_read_Search"` - FOwner *DomainFeatureCapability `xml:"fowner"` - FSetID *DomainFeatureCapability `xml:"fsetid"` - IPCLock *DomainFeatureCapability `xml:"ipc_lock"` - IPCOwner *DomainFeatureCapability `xml:"ipc_owner"` - Kill *DomainFeatureCapability `xml:"kill"` - Lease *DomainFeatureCapability `xml:"lease"` - LinuxImmutable *DomainFeatureCapability `xml:"linux_immutable"` - MACAdmin *DomainFeatureCapability `xml:"mac_admin"` - MACOverride *DomainFeatureCapability `xml:"mac_override"` - MkNod *DomainFeatureCapability `xml:"mknod"` - NetAdmin *DomainFeatureCapability `xml:"net_admin"` - NetBindService *DomainFeatureCapability `xml:"net_bind_service"` - NetBroadcast *DomainFeatureCapability `xml:"net_broadcast"` - NetRaw *DomainFeatureCapability `xml:"net_raw"` - SetGID *DomainFeatureCapability `xml:"setgid"` - SetFCap *DomainFeatureCapability `xml:"setfcap"` - SetPCap *DomainFeatureCapability `xml:"setpcap"` - SetUID *DomainFeatureCapability `xml:"setuid"` - SysAdmin *DomainFeatureCapability `xml:"sys_admin"` - SysBoot *DomainFeatureCapability `xml:"sys_boot"` - SysChRoot *DomainFeatureCapability `xml:"sys_chroot"` - SysModule *DomainFeatureCapability `xml:"sys_module"` - SysNice *DomainFeatureCapability `xml:"sys_nice"` - SysPAcct *DomainFeatureCapability `xml:"sys_pacct"` - SysPTrace *DomainFeatureCapability `xml:"sys_ptrace"` - SysRawIO *DomainFeatureCapability `xml:"sys_rawio"` - SysResource *DomainFeatureCapability `xml:"sys_resource"` - SysTime *DomainFeatureCapability `xml:"sys_time"` - SysTTYCnofig *DomainFeatureCapability `xml:"sys_tty_config"` - SysLog *DomainFeatureCapability `xml:"syslog"` - WakeAlarm *DomainFeatureCapability `xml:"wake_alarm"` -} - -type DomainFeatureMSRS struct { - Unknown string `xml:"unknown,attr"` -} - -type DomainFeatureCFPC struct { - Value string `xml:"value,attr"` -} - -type DomainFeatureSBBC struct { - Value string `xml:"value,attr"` -} - -type DomainFeatureIBS struct { - Value string `xml:"value,attr"` -} - -type DomainFeatureAsyncTeardown struct { - Enabled string `xml:"enabled,attr,omitempty"` -} - -type DomainFeatureAIA struct { - Value string `xml:"value,attr"` -} - -type DomainFeatureList struct { - PAE *DomainFeature `xml:"pae"` - ACPI *DomainFeature `xml:"acpi"` - APIC *DomainFeatureAPIC `xml:"apic"` - HAP *DomainFeatureState `xml:"hap"` - Viridian *DomainFeature `xml:"viridian"` - PrivNet *DomainFeature `xml:"privnet"` - HyperV *DomainFeatureHyperV `xml:"hyperv"` - KVM *DomainFeatureKVM `xml:"kvm"` - Xen *DomainFeatureXen `xml:"xen"` - PVSpinlock *DomainFeatureState `xml:"pvspinlock"` - PMU *DomainFeatureState `xml:"pmu"` - VMPort *DomainFeatureState `xml:"vmport"` - GIC *DomainFeatureGIC `xml:"gic"` - SMM *DomainFeatureSMM `xml:"smm"` - IOAPIC *DomainFeatureIOAPIC `xml:"ioapic"` - HPT *DomainFeatureHPT `xml:"hpt"` - HTM *DomainFeatureState `xml:"htm"` - NestedHV *DomainFeatureState `xml:"nested-hv"` - Capabilities *DomainFeatureCapabilities `xml:"capabilities"` - VMCoreInfo *DomainFeatureState `xml:"vmcoreinfo"` - MSRS *DomainFeatureMSRS `xml:"msrs"` - CCFAssist *DomainFeatureState `xml:"ccf-assist"` - CFPC *DomainFeatureCFPC `xml:"cfpc"` - SBBC *DomainFeatureSBBC `xml:"sbbc"` - IBS *DomainFeatureIBS `xml:"ibs"` - TCG *DomainFeatureTCG `xml:"tcg"` - AsyncTeardown *DomainFeatureAsyncTeardown `xml:"async-teardown"` - RAS *DomainFeatureState `xml:"ras"` - PS2 *DomainFeatureState `xml:"ps2"` - AIA *DomainFeatureAIA `xml:"aia"` - Virtualization *DomainFeature `xml:"virtualization"` -} - -type DomainCPUTuneShares struct { - Value uint `xml:",chardata"` -} - -type DomainCPUTunePeriod struct { - Value uint64 `xml:",chardata"` -} - -type DomainCPUTuneQuota struct { - Value int64 `xml:",chardata"` -} - -type DomainCPUTuneVCPUPin struct { - VCPU uint `xml:"vcpu,attr"` - CPUSet string `xml:"cpuset,attr"` -} - -type DomainCPUTuneEmulatorPin struct { - CPUSet string `xml:"cpuset,attr"` -} - -type DomainCPUTuneIOThreadPin struct { - IOThread uint `xml:"iothread,attr"` - CPUSet string `xml:"cpuset,attr"` -} - -type DomainCPUTuneVCPUSched struct { - VCPUs string `xml:"vcpus,attr"` - Scheduler string `xml:"scheduler,attr,omitempty"` - Priority *int `xml:"priority,attr"` -} - -type DomainCPUTuneIOThreadSched struct { - IOThreads string `xml:"iothreads,attr"` - Scheduler string `xml:"scheduler,attr,omitempty"` - Priority *int `xml:"priority,attr"` -} - -type DomainCPUTuneEmulatorSched struct { - Scheduler string `xml:"scheduler,attr,omitempty"` - Priority *int `xml:"priority,attr"` -} - -type DomainCPUCacheTune struct { - VCPUs string `xml:"vcpus,attr,omitempty"` - ID string `xml:"id,attr,omitempty"` - Cache []DomainCPUCacheTuneCache `xml:"cache"` - Monitor []DomainCPUCacheTuneMonitor `xml:"monitor"` -} - -type DomainCPUCacheTuneCache struct { - ID uint `xml:"id,attr"` - Level uint `xml:"level,attr"` - Type string `xml:"type,attr"` - Size uint `xml:"size,attr"` - Unit string `xml:"unit,attr"` -} - -type DomainCPUCacheTuneMonitor struct { - Level uint `xml:"level,attr,omitempty"` - VCPUs string `xml:"vcpus,attr,omitempty"` -} - -type DomainCPUMemoryTune struct { - VCPUs string `xml:"vcpus,attr"` - Nodes []DomainCPUMemoryTuneNode `xml:"node"` - Monitor []DomainCPUMemoryTuneMonitor `xml:"monitor"` -} - -type DomainCPUMemoryTuneNode struct { - ID uint `xml:"id,attr"` - Bandwidth uint `xml:"bandwidth,attr"` -} - -type DomainCPUMemoryTuneMonitor struct { - Level uint `xml:"level,attr,omitempty"` - VCPUs string `xml:"vcpus,attr,omitempty"` -} - -type DomainCPUEnergyTuneMonitor struct { - VCPUs string `xml:"vcpus,attr"` -} - -type DomainCPUEnergyTune struct { - VCPUs string `xml:"vcpus,attr"` - ID string `xml:"id,attr,omitempty"` - Monitor []DomainCPUEnergyTuneMonitor `xml:"monitor"` -} - -type DomainCPUTune struct { - Shares *DomainCPUTuneShares `xml:"shares"` - Period *DomainCPUTunePeriod `xml:"period"` - Quota *DomainCPUTuneQuota `xml:"quota"` - GlobalPeriod *DomainCPUTunePeriod `xml:"global_period"` - GlobalQuota *DomainCPUTuneQuota `xml:"global_quota"` - EmulatorPeriod *DomainCPUTunePeriod `xml:"emulator_period"` - EmulatorQuota *DomainCPUTuneQuota `xml:"emulator_quota"` - IOThreadPeriod *DomainCPUTunePeriod `xml:"iothread_period"` - IOThreadQuota *DomainCPUTuneQuota `xml:"iothread_quota"` - VCPUPin []DomainCPUTuneVCPUPin `xml:"vcpupin"` - EmulatorPin *DomainCPUTuneEmulatorPin `xml:"emulatorpin"` - IOThreadPin []DomainCPUTuneIOThreadPin `xml:"iothreadpin"` - VCPUSched []DomainCPUTuneVCPUSched `xml:"vcpusched"` - EmulatorSched *DomainCPUTuneEmulatorSched `xml:"emulatorsched"` - IOThreadSched []DomainCPUTuneIOThreadSched `xml:"iothreadsched"` - CacheTune []DomainCPUCacheTune `xml:"cachetune"` - MemoryTune []DomainCPUMemoryTune `xml:"memorytune"` - EnergyTune []DomainCPUEnergyTune `xml:"energytune"` -} - -type DomainQEMUCommandlineArg struct { - Value string `xml:"value,attr"` -} - -type DomainQEMUCommandlineEnv struct { - Name string `xml:"name,attr"` - Value string `xml:"value,attr,omitempty"` -} - -type DomainQEMUCommandline struct { - XMLName xml.Name `xml:"http://libvirt.org/schemas/domain/qemu/1.0 commandline"` - Args []DomainQEMUCommandlineArg `xml:"arg"` - Envs []DomainQEMUCommandlineEnv `xml:"env"` -} - -type DomainQEMUCapabilitiesEntry struct { - Name string `xml:"capability,attr"` -} -type DomainQEMUCapabilities struct { - XMLName xml.Name `xml:"http://libvirt.org/schemas/domain/qemu/1.0 capabilities"` - Add []DomainQEMUCapabilitiesEntry `xml:"add"` - Del []DomainQEMUCapabilitiesEntry `xml:"del"` -} - -type DomainQEMUDeprecation struct { - XMLName xml.Name `xml:"http://libvirt.org/schemas/domain/qemu/1.0 deprecation"` - Behavior string `xml:"behavior,attr,omitempty"` -} - -type DomainQEMUOverride struct { - XMLName xml.Name `xml:"http://libvirt.org/schemas/domain/qemu/1.0 override"` - Devices []DomainQEMUOverrideDevice `xml:"device"` -} - -type DomainQEMUOverrideDevice struct { - Alias string `xml:"alias,attr"` - Frontend DomainQEMUOverrideFrontend `xml:"frontend"` -} - -type DomainQEMUOverrideFrontend struct { - Properties []DomainQEMUOverrideProperty `xml:"property"` -} - -type DomainQEMUOverrideProperty struct { - Name string `xml:"name,attr"` - Type string `xml:"type,attr,omitempty"` - Value string `xml:"value,attr,omitempty"` -} - -type DomainLXCNamespace struct { - XMLName xml.Name `xml:"http://libvirt.org/schemas/domain/lxc/1.0 namespace"` - ShareNet *DomainLXCNamespaceMap `xml:"sharenet"` - ShareIPC *DomainLXCNamespaceMap `xml:"shareipc"` - ShareUTS *DomainLXCNamespaceMap `xml:"shareuts"` -} - -type DomainLXCNamespaceMap struct { - Type string `xml:"type,attr"` - Value string `xml:"value,attr"` -} - -type DomainBHyveCommandlineArg struct { - Value string `xml:"value,attr"` -} - -type DomainBHyveCommandlineEnv struct { - Name string `xml:"name,attr"` - Value string `xml:"value,attr,omitempty"` -} - -type DomainBHyveCommandline struct { - XMLName xml.Name `xml:"http://libvirt.org/schemas/domain/bhyve/1.0 commandline"` - Args []DomainBHyveCommandlineArg `xml:"arg"` - Envs []DomainBHyveCommandlineEnv `xml:"env"` -} - -type DomainXenCommandlineArg struct { - Value string `xml:"value,attr"` -} - -type DomainXenCommandline struct { - XMLName xml.Name `xml:"http://libvirt.org/schemas/domain/xen/1.0 commandline"` - Args []DomainXenCommandlineArg `xml:"arg"` -} - -type DomainBlockIOTune struct { - Weight uint `xml:"weight,omitempty"` - Device []DomainBlockIOTuneDevice `xml:"device"` -} - -type DomainBlockIOTuneDevice struct { - Path string `xml:"path"` - Weight uint `xml:"weight,omitempty"` - ReadIopsSec uint `xml:"read_iops_sec,omitempty"` - WriteIopsSec uint `xml:"write_iops_sec,omitempty"` - ReadBytesSec uint `xml:"read_bytes_sec,omitempty"` - WriteBytesSec uint `xml:"write_bytes_sec,omitempty"` -} - -type DomainPM struct { - SuspendToMem *DomainPMPolicy `xml:"suspend-to-mem"` - SuspendToDisk *DomainPMPolicy `xml:"suspend-to-disk"` -} - -type DomainPMPolicy struct { - Enabled string `xml:"enabled,attr"` -} - -type DomainSecLabel struct { - Type string `xml:"type,attr,omitempty"` - Model string `xml:"model,attr,omitempty"` - Relabel string `xml:"relabel,attr,omitempty"` - Label string `xml:"label,omitempty"` - ImageLabel string `xml:"imagelabel,omitempty"` - BaseLabel string `xml:"baselabel,omitempty"` -} - -type DomainDeviceSecLabel struct { - Model string `xml:"model,attr,omitempty"` - LabelSkip string `xml:"labelskip,attr,omitempty"` - Relabel string `xml:"relabel,attr,omitempty"` - Label string `xml:"label,omitempty"` -} - -type DomainNUMATune struct { - Memory *DomainNUMATuneMemory `xml:"memory"` - MemNodes []DomainNUMATuneMemNode `xml:"memnode"` -} - -type DomainNUMATuneMemory struct { - Mode string `xml:"mode,attr,omitempty"` - Nodeset string `xml:"nodeset,attr,omitempty"` - Placement string `xml:"placement,attr,omitempty"` -} - -type DomainNUMATuneMemNode struct { - CellID uint `xml:"cellid,attr"` - Mode string `xml:"mode,attr"` - Nodeset string `xml:"nodeset,attr"` -} - -type DomainIOThreadIDs struct { - IOThreads []DomainIOThread `xml:"iothread"` -} - -type DomainIOThreadPoll struct { - Max *uint `xml:"max,attr"` - Grow *uint `xml:"grow,attr"` - Shrink *uint `xml:"shrink,attr"` -} - -type DomainIOThread struct { - ID uint `xml:"id,attr"` - PoolMin *uint `xml:"thread_pool_min,attr"` - PoolMax *uint `xml:"thread_pool_max,attr"` - Poll *DomainIOThreadPoll `xml:"poll"` -} - -type DomainDefaultIOThread struct { - PoolMin *uint `xml:"thread_pool_min,attr"` - PoolMax *uint `xml:"thread_pool_max,attr"` -} - -type DomainKeyWrap struct { - Ciphers []DomainKeyWrapCipher `xml:"cipher"` -} - -type DomainKeyWrapCipher struct { - Name string `xml:"name,attr"` - State string `xml:"state,attr"` -} - -type DomainIDMap struct { - UIDs []DomainIDMapRange `xml:"uid"` - GIDs []DomainIDMapRange `xml:"gid"` -} - -type DomainIDMapRange struct { - Start uint `xml:"start,attr"` - Target uint `xml:"target,attr"` - Count uint `xml:"count,attr"` -} - -type DomainMemoryTuneLimit struct { - Value uint64 `xml:",chardata"` - Unit string `xml:"unit,attr,omitempty"` -} - -type DomainMemoryTune struct { - HardLimit *DomainMemoryTuneLimit `xml:"hard_limit"` - SoftLimit *DomainMemoryTuneLimit `xml:"soft_limit"` - MinGuarantee *DomainMemoryTuneLimit `xml:"min_guarantee"` - SwapHardLimit *DomainMemoryTuneLimit `xml:"swap_hard_limit"` -} - -type DomainMetadata struct { - XML string `xml:",innerxml"` -} - -type DomainVMWareDataCenterPath struct { - XMLName xml.Name `xml:"http://libvirt.org/schemas/domain/vmware/1.0 datacenterpath"` - Value string `xml:",chardata"` -} - -type DomainPerf struct { - Events []DomainPerfEvent `xml:"event"` -} - -type DomainPerfEvent struct { - Name string `xml:"name,attr"` - Enabled string `xml:"enabled,attr"` -} - -type DomainGenID struct { - Value string `xml:",chardata"` -} - -type DomainThrottleGroups struct { - ThrottleGroups []ThrottleGroup `xml:"throttlegroup"` -} - -type ThrottleGroup DomainDiskIOTune - -// NB, try to keep the order of fields in this struct -// matching the order of XML elements that libvirt -// will generate when dumping XML. -type Domain struct { - XMLName xml.Name `xml:"domain"` - Type string `xml:"type,attr,omitempty"` - ID *int `xml:"id,attr"` - Name string `xml:"name,omitempty"` - UUID string `xml:"uuid,omitempty"` - HWUUID string `xml:"hwuuid,omitempty"` - GenID *DomainGenID `xml:"genid"` - Title string `xml:"title,omitempty"` - Description string `xml:"description,omitempty"` - Metadata *DomainMetadata `xml:"metadata"` - MaximumMemory *DomainMaxMemory `xml:"maxMemory"` - Memory *DomainMemory `xml:"memory"` - CurrentMemory *DomainCurrentMemory `xml:"currentMemory"` - BlockIOTune *DomainBlockIOTune `xml:"blkiotune"` - MemoryTune *DomainMemoryTune `xml:"memtune"` - MemoryBacking *DomainMemoryBacking `xml:"memoryBacking"` - VCPU *DomainVCPU `xml:"vcpu"` - VCPUs *DomainVCPUs `xml:"vcpus"` - IOThreads uint `xml:"iothreads,omitempty"` - IOThreadIDs *DomainIOThreadIDs `xml:"iothreadids"` - DefaultIOThread *DomainDefaultIOThread `xml:"defaultiothread"` - CPUTune *DomainCPUTune `xml:"cputune"` - NUMATune *DomainNUMATune `xml:"numatune"` - IOMMUFD *DomainIOMMUFD `xml:"iommufd"` - Resource *DomainResource `xml:"resource"` - SysInfo []DomainSysInfo `xml:"sysinfo"` - Bootloader string `xml:"bootloader,omitempty"` - BootloaderArgs string `xml:"bootloader_args,omitempty"` - OS *DomainOS `xml:"os"` - IDMap *DomainIDMap `xml:"idmap"` - ThrottleGroups *DomainThrottleGroups `xml:"throttlegroups"` - Features *DomainFeatureList `xml:"features"` - CPU *DomainCPU `xml:"cpu"` - Clock *DomainClock `xml:"clock"` - OnPoweroff string `xml:"on_poweroff,omitempty"` - OnReboot string `xml:"on_reboot,omitempty"` - OnCrash string `xml:"on_crash,omitempty"` - PM *DomainPM `xml:"pm"` - Perf *DomainPerf `xml:"perf"` - Devices *DomainDeviceList `xml:"devices"` - SecLabel []DomainSecLabel `xml:"seclabel"` - KeyWrap *DomainKeyWrap `xml:"keywrap"` - LaunchSecurity *DomainLaunchSecurity `xml:"launchSecurity"` - - /* Hypervisor namespaces must all be last */ - QEMUCommandline *DomainQEMUCommandline - QEMUCapabilities *DomainQEMUCapabilities - QEMUOverride *DomainQEMUOverride - QEMUDeprecation *DomainQEMUDeprecation - LXCNamespace *DomainLXCNamespace - BHyveCommandline *DomainBHyveCommandline - VMWareDataCenterPath *DomainVMWareDataCenterPath - XenCommandline *DomainXenCommandline -} - -func (d *Domain) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *Domain) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -type domainController DomainController - -type domainControllerPCI struct { - DomainControllerPCI - domainController -} - -type domainControllerUSB struct { - DomainControllerUSB - domainController -} - -type domainControllerVirtIOSerial struct { - DomainControllerVirtIOSerial - domainController -} - -type domainControllerXenBus struct { - DomainControllerXenBus - domainController -} - -type domainControllerNVME struct { - DomainControllerNVME - domainController -} - -func (a *DomainControllerPCITarget) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "chassisNr", a.ChassisNr, "%d") - marshalUintAttr(&start, "chassis", a.Chassis, "%d") - marshalUintAttr(&start, "port", a.Port, "%d") - marshalUintAttr(&start, "busNr", a.BusNr, "%d") - marshalUintAttr(&start, "index", a.Index, "%d") - marshalUint64Attr(&start, "memReserve", a.MemReserve, "%d") - if a.Hotplug != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "hotplug"}, a.Hotplug, - }) - } - e.EncodeToken(start) - if a.NUMANode != nil { - node := xml.StartElement{ - Name: xml.Name{Local: "node"}, - } - e.EncodeToken(node) - e.EncodeToken(xml.CharData(fmt.Sprintf("%d", *a.NUMANode))) - e.EncodeToken(node.End()) - } - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainControllerPCITarget) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "chassisNr" { - if err := unmarshalUintAttr(attr.Value, &a.ChassisNr, 10); err != nil { - return err - } - } else if attr.Name.Local == "chassis" { - if err := unmarshalUintAttr(attr.Value, &a.Chassis, 10); err != nil { - return err - } - } else if attr.Name.Local == "port" { - if err := unmarshalUintAttr(attr.Value, &a.Port, 0); err != nil { - return err - } - } else if attr.Name.Local == "busNr" { - if err := unmarshalUintAttr(attr.Value, &a.BusNr, 10); err != nil { - return err - } - } else if attr.Name.Local == "index" { - if err := unmarshalUintAttr(attr.Value, &a.Index, 10); err != nil { - return err - } - } else if attr.Name.Local == "memReserve" { - if err := unmarshalUint64Attr(attr.Value, &a.MemReserve, 10); err != nil { - return err - } - } else if attr.Name.Local == "hotplug" { - a.Hotplug = attr.Value - } - } - for { - tok, err := d.Token() - if err == io.EOF { - break - } - if err != nil { - return err - } - - switch tok := tok.(type) { - case xml.StartElement: - if tok.Name.Local == "node" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - val, err := strconv.ParseUint(string(data), 10, 64) - if err != nil { - return err - } - vali := uint(val) - a.NUMANode = &vali - } - } - } - } - return nil -} - -func (a *DomainController) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "controller" - if a.Type == "pci" { - pci := domainControllerPCI{} - pci.domainController = domainController(*a) - if a.PCI != nil { - pci.DomainControllerPCI = *a.PCI - } - return e.EncodeElement(pci, start) - } else if a.Type == "usb" { - usb := domainControllerUSB{} - usb.domainController = domainController(*a) - if a.USB != nil { - usb.DomainControllerUSB = *a.USB - } - return e.EncodeElement(usb, start) - } else if a.Type == "virtio-serial" { - vioserial := domainControllerVirtIOSerial{} - vioserial.domainController = domainController(*a) - if a.VirtIOSerial != nil { - vioserial.DomainControllerVirtIOSerial = *a.VirtIOSerial - } - return e.EncodeElement(vioserial, start) - } else if a.Type == "xenbus" { - xenbus := domainControllerXenBus{} - xenbus.domainController = domainController(*a) - if a.XenBus != nil { - xenbus.DomainControllerXenBus = *a.XenBus - } - return e.EncodeElement(xenbus, start) - } else if a.Type == "nvme" { - nvme := domainControllerNVME{} - nvme.domainController = domainController(*a) - if a.NVME != nil { - nvme.DomainControllerNVME = *a.NVME - } - return e.EncodeElement(nvme, start) - } else { - gen := domainController(*a) - return e.EncodeElement(gen, start) - } -} - -func getAttr(attrs []xml.Attr, name string) (string, bool) { - for _, attr := range attrs { - if attr.Name.Local == name { - return attr.Value, true - } - } - return "", false -} - -func (a *DomainController) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing 'type' attribute on domain controller") - } - if typ == "pci" { - var pci domainControllerPCI - err := d.DecodeElement(&pci, &start) - if err != nil { - return err - } - *a = DomainController(pci.domainController) - a.PCI = &pci.DomainControllerPCI - return nil - } else if typ == "usb" { - var usb domainControllerUSB - err := d.DecodeElement(&usb, &start) - if err != nil { - return err - } - *a = DomainController(usb.domainController) - a.USB = &usb.DomainControllerUSB - return nil - } else if typ == "virtio-serial" { - var vioserial domainControllerVirtIOSerial - err := d.DecodeElement(&vioserial, &start) - if err != nil { - return err - } - *a = DomainController(vioserial.domainController) - a.VirtIOSerial = &vioserial.DomainControllerVirtIOSerial - return nil - } else if typ == "xenbus" { - var xenbus domainControllerXenBus - err := d.DecodeElement(&xenbus, &start) - if err != nil { - return err - } - *a = DomainController(xenbus.domainController) - a.XenBus = &xenbus.DomainControllerXenBus - return nil - } else if typ == "nvme" { - var nvme domainControllerNVME - err := d.DecodeElement(&nvme, &start) - if err != nil { - return err - } - *a = DomainController(nvme.domainController) - a.NVME = &nvme.DomainControllerNVME - return nil - } else { - var gen domainController - err := d.DecodeElement(&gen, &start) - if err != nil { - return err - } - *a = DomainController(gen) - return nil - } -} - -func (d *DomainGraphic) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainGraphic) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (d *DomainController) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainController) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (a *DomainDiskReservationsSource) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "source" - src := DomainChardevSource(*a) - typ := getChardevSourceType(&src) - if typ != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, typ, - }) - } - return e.EncodeElement(&src, start) -} - -func (a *DomainDiskReservationsSource) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "unix" - } - src := createChardevSource(typ) - err := d.DecodeElement(&src, &start) - if err != nil { - return err - } - *a = DomainDiskReservationsSource(*src) - return nil -} - -func (a *DomainDiskSourceVHostUser) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "source" - src := DomainChardevSource(*a) - typ := getChardevSourceType(&src) - if typ != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, typ, - }) - } - return e.EncodeElement(&src, start) -} - -func (a *DomainDiskSourceVHostUser) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "unix" - } - src := createChardevSource(typ) - err := d.DecodeElement(&src, &start) - if err != nil { - return err - } - *a = DomainDiskSourceVHostUser(*src) - return nil -} - -type domainDiskSource DomainDiskSource - -type domainDiskSourceFile struct { - DomainDiskSourceFile - domainDiskSource -} - -type domainDiskSourceBlock struct { - DomainDiskSourceBlock - domainDiskSource -} - -type domainDiskSourceDir struct { - DomainDiskSourceDir - domainDiskSource -} - -type domainDiskSourceNetwork struct { - DomainDiskSourceNetwork - domainDiskSource -} - -type domainDiskSourceVolume struct { - DomainDiskSourceVolume - domainDiskSource -} - -type domainDiskSourceNVMEPCI struct { - DomainDiskSourceNVMEPCI - domainDiskSource -} - -type domainDiskSourceVHostUser struct { - DomainDiskSourceVHostUser - domainDiskSource -} - -type domainDiskSourceVHostVDPA struct { - DomainDiskSourceVHostVDPA - domainDiskSource -} - -type domainDiskSourceCtl struct { - DomainDiskSourceCtl - domainDiskSource -} - -func (a *DomainDiskSource) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if a.File != nil { - if a.StartupPolicy == "" && a.Encryption == nil && a.File.File == "" { - return nil - } - file := domainDiskSourceFile{ - *a.File, domainDiskSource(*a), - } - return e.EncodeElement(&file, start) - } else if a.Block != nil { - if a.StartupPolicy == "" && a.Encryption == nil && a.Block.Dev == "" { - return nil - } - block := domainDiskSourceBlock{ - *a.Block, domainDiskSource(*a), - } - return e.EncodeElement(&block, start) - } else if a.Dir != nil { - dir := domainDiskSourceDir{ - *a.Dir, domainDiskSource(*a), - } - return e.EncodeElement(&dir, start) - } else if a.Network != nil { - network := domainDiskSourceNetwork{ - *a.Network, domainDiskSource(*a), - } - return e.EncodeElement(&network, start) - } else if a.Volume != nil { - if a.StartupPolicy == "" && a.Encryption == nil && a.Volume.Pool == "" && a.Volume.Volume == "" { - return nil - } - volume := domainDiskSourceVolume{ - *a.Volume, domainDiskSource(*a), - } - return e.EncodeElement(&volume, start) - } else if a.NVME != nil { - if a.NVME.PCI != nil { - nvme := domainDiskSourceNVMEPCI{ - *a.NVME.PCI, domainDiskSource(*a), - } - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "pci", - }) - return e.EncodeElement(&nvme, start) - } - } else if a.VHostUser != nil { - vhost := domainDiskSourceVHostUser{ - *a.VHostUser, domainDiskSource(*a), - } - return e.EncodeElement(&vhost, start) - } else if a.VHostVDPA != nil { - vhost := domainDiskSourceVHostVDPA{ - *a.VHostVDPA, domainDiskSource(*a), - } - return e.EncodeElement(&vhost, start) - } else if a.Ctl != nil { - vhost := domainDiskSourceCtl{ - *a.Ctl, domainDiskSource(*a), - } - return e.EncodeElement(&vhost, start) - } - return nil -} - -func (a *DomainDiskSource) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - if a.File != nil { - file := domainDiskSourceFile{ - *a.File, domainDiskSource(*a), - } - err := d.DecodeElement(&file, &start) - if err != nil { - return err - } - *a = DomainDiskSource(file.domainDiskSource) - a.File = &file.DomainDiskSourceFile - } else if a.Block != nil { - block := domainDiskSourceBlock{ - *a.Block, domainDiskSource(*a), - } - err := d.DecodeElement(&block, &start) - if err != nil { - return err - } - *a = DomainDiskSource(block.domainDiskSource) - a.Block = &block.DomainDiskSourceBlock - } else if a.Dir != nil { - dir := domainDiskSourceDir{ - *a.Dir, domainDiskSource(*a), - } - err := d.DecodeElement(&dir, &start) - if err != nil { - return err - } - *a = DomainDiskSource(dir.domainDiskSource) - a.Dir = &dir.DomainDiskSourceDir - } else if a.Network != nil { - network := domainDiskSourceNetwork{ - *a.Network, domainDiskSource(*a), - } - err := d.DecodeElement(&network, &start) - if err != nil { - return err - } - *a = DomainDiskSource(network.domainDiskSource) - a.Network = &network.DomainDiskSourceNetwork - } else if a.Volume != nil { - volume := domainDiskSourceVolume{ - *a.Volume, domainDiskSource(*a), - } - err := d.DecodeElement(&volume, &start) - if err != nil { - return err - } - *a = DomainDiskSource(volume.domainDiskSource) - a.Volume = &volume.DomainDiskSourceVolume - } else if a.NVME != nil { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing nvme source type") - } - if typ == "pci" { - a.NVME.PCI = &DomainDiskSourceNVMEPCI{} - nvme := domainDiskSourceNVMEPCI{ - *a.NVME.PCI, domainDiskSource(*a), - } - err := d.DecodeElement(&nvme, &start) - if err != nil { - return err - } - *a = DomainDiskSource(nvme.domainDiskSource) - a.NVME.PCI = &nvme.DomainDiskSourceNVMEPCI - } - } else if a.VHostUser != nil { - vhost := domainDiskSourceVHostUser{ - *a.VHostUser, domainDiskSource(*a), - } - err := d.DecodeElement(&vhost, &start) - if err != nil { - return err - } - *a = DomainDiskSource(vhost.domainDiskSource) - a.VHostUser = &vhost.DomainDiskSourceVHostUser - } else if a.VHostVDPA != nil { - vhost := domainDiskSourceVHostVDPA{ - *a.VHostVDPA, domainDiskSource(*a), - } - err := d.DecodeElement(&vhost, &start) - if err != nil { - return err - } - *a = DomainDiskSource(vhost.domainDiskSource) - a.VHostVDPA = &vhost.DomainDiskSourceVHostVDPA - } else if a.Ctl != nil { - vhost := domainDiskSourceCtl{ - *a.Ctl, domainDiskSource(*a), - } - err := d.DecodeElement(&vhost, &start) - if err != nil { - return err - } - *a = DomainDiskSource(vhost.domainDiskSource) - a.Ctl = &vhost.DomainDiskSourceCtl - } - return nil -} - -type domainDiskBackingStore DomainDiskBackingStore - -func (a *DomainDiskBackingStore) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "backingStore" - if a.Source != nil { - if a.Source.File != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "file", - }) - } else if a.Source.Block != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "block", - }) - } else if a.Source.Dir != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "dir", - }) - } else if a.Source.Network != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "network", - }) - } else if a.Source.Volume != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "volume", - }) - } else if a.Source.VHostUser != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vhostuser", - }) - } else if a.Source.VHostVDPA != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vhostvdpa", - }) - } else if a.Source.Ctl != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "ctl", - }) - } - } - disk := domainDiskBackingStore(*a) - return e.EncodeElement(disk, start) -} - -func (a *DomainDiskBackingStore) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "file" - } - a.Source = &DomainDiskSource{} - if typ == "file" { - a.Source.File = &DomainDiskSourceFile{} - } else if typ == "block" { - a.Source.Block = &DomainDiskSourceBlock{} - } else if typ == "network" { - a.Source.Network = &DomainDiskSourceNetwork{} - } else if typ == "dir" { - a.Source.Dir = &DomainDiskSourceDir{} - } else if typ == "volume" { - a.Source.Volume = &DomainDiskSourceVolume{} - } else if typ == "vhostuser" { - a.Source.VHostUser = &DomainDiskSourceVHostUser{} - } else if typ == "vhostvdpa" { - a.Source.VHostVDPA = &DomainDiskSourceVHostVDPA{} - } else if typ == "ctl" { - a.Source.Ctl = &DomainDiskSourceCtl{} - } - disk := domainDiskBackingStore(*a) - err := d.DecodeElement(&disk, &start) - if err != nil { - return err - } - *a = DomainDiskBackingStore(disk) - if !ok && a.Source.File.File == "" { - a.Source.File = nil - } - return nil -} - -type domainDiskDataStore DomainDiskDataStore - -func (a *DomainDiskDataStore) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "dataStore" - if a.Source != nil { - if a.Source.File != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "file", - }) - } else if a.Source.Block != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "block", - }) - } else if a.Source.Dir != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "dir", - }) - } else if a.Source.Network != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "network", - }) - } else if a.Source.Volume != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "volume", - }) - } else if a.Source.VHostUser != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vhostuser", - }) - } else if a.Source.VHostVDPA != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vhostvdpa", - }) - } else if a.Source.Ctl != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "ctl", - }) - } - } - disk := domainDiskDataStore(*a) - return e.EncodeElement(disk, start) -} - -func (a *DomainDiskDataStore) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "file" - } - a.Source = &DomainDiskSource{} - if typ == "file" { - a.Source.File = &DomainDiskSourceFile{} - } else if typ == "block" { - a.Source.Block = &DomainDiskSourceBlock{} - } else if typ == "network" { - a.Source.Network = &DomainDiskSourceNetwork{} - } else if typ == "dir" { - a.Source.Dir = &DomainDiskSourceDir{} - } else if typ == "volume" { - a.Source.Volume = &DomainDiskSourceVolume{} - } else if typ == "vhostuser" { - a.Source.VHostUser = &DomainDiskSourceVHostUser{} - } else if typ == "vhostvdpa" { - a.Source.VHostVDPA = &DomainDiskSourceVHostVDPA{} - } else if typ == "ctl" { - a.Source.Ctl = &DomainDiskSourceCtl{} - } - disk := domainDiskDataStore(*a) - err := d.DecodeElement(&disk, &start) - if err != nil { - return err - } - *a = DomainDiskDataStore(disk) - if !ok && a.Source.File.File == "" { - a.Source.File = nil - } - return nil -} - -type domainDiskMirror DomainDiskMirror - -func (a *DomainDiskMirror) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "mirror" - if a.Source != nil { - if a.Source.File != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "file", - }) - if a.Source.File.File != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "file"}, a.Source.File.File, - }) - } - if a.Format != nil && a.Format.Type != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "format"}, a.Format.Type, - }) - } - } else if a.Source.Block != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "block", - }) - } else if a.Source.Dir != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "dir", - }) - } else if a.Source.Network != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "network", - }) - } else if a.Source.Volume != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "volume", - }) - } else if a.Source.VHostUser != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vhostuser", - }) - } else if a.Source.VHostVDPA != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vhostvdpa", - }) - } else if a.Source.Ctl != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "ctl", - }) - } - } - disk := domainDiskMirror(*a) - return e.EncodeElement(disk, start) -} - -func (a *DomainDiskMirror) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "file" - } - a.Source = &DomainDiskSource{} - if typ == "file" { - a.Source.File = &DomainDiskSourceFile{} - } else if typ == "block" { - a.Source.Block = &DomainDiskSourceBlock{} - } else if typ == "network" { - a.Source.Network = &DomainDiskSourceNetwork{} - } else if typ == "dir" { - a.Source.Dir = &DomainDiskSourceDir{} - } else if typ == "volume" { - a.Source.Volume = &DomainDiskSourceVolume{} - } else if typ == "vhostuser" { - a.Source.VHostUser = &DomainDiskSourceVHostUser{} - } else if typ == "vhostvdpa" { - a.Source.VHostVDPA = &DomainDiskSourceVHostVDPA{} - } else if typ == "ctl" { - a.Source.Ctl = &DomainDiskSourceCtl{} - } - disk := domainDiskMirror(*a) - err := d.DecodeElement(&disk, &start) - if err != nil { - return err - } - *a = DomainDiskMirror(disk) - if !ok { - if a.Source.File.File == "" { - file, ok := getAttr(start.Attr, "file") - if ok { - a.Source.File.File = file - } else { - a.Source.File = nil - } - } - if a.Format == nil { - format, ok := getAttr(start.Attr, "format") - if ok { - a.Format = &DomainDiskFormat{ - Type: format, - } - } - } - } - return nil -} - -type domainDisk DomainDisk - -func (a *DomainDisk) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "disk" - if a.Source != nil { - if a.Source.File != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "file", - }) - } else if a.Source.Block != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "block", - }) - } else if a.Source.Dir != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "dir", - }) - } else if a.Source.Network != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "network", - }) - } else if a.Source.Volume != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "volume", - }) - } else if a.Source.NVME != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "nvme", - }) - } else if a.Source.VHostUser != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vhostuser", - }) - } else if a.Source.VHostVDPA != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vhostvdpa", - }) - } else if a.Source.Ctl != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "ctl", - }) - } - } - disk := domainDisk(*a) - return e.EncodeElement(disk, start) -} - -func (a *DomainDisk) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "file" - } - a.Source = &DomainDiskSource{} - if typ == "file" { - a.Source.File = &DomainDiskSourceFile{} - } else if typ == "block" { - a.Source.Block = &DomainDiskSourceBlock{} - } else if typ == "network" { - a.Source.Network = &DomainDiskSourceNetwork{} - } else if typ == "dir" { - a.Source.Dir = &DomainDiskSourceDir{} - } else if typ == "volume" { - a.Source.Volume = &DomainDiskSourceVolume{} - } else if typ == "nvme" { - a.Source.NVME = &DomainDiskSourceNVME{} - } else if typ == "vhostuser" { - a.Source.VHostUser = &DomainDiskSourceVHostUser{} - } else if typ == "vhostvdpa" { - a.Source.VHostVDPA = &DomainDiskSourceVHostVDPA{} - } else if typ == "ctl" { - a.Source.Ctl = &DomainDiskSourceCtl{} - } - disk := domainDisk(*a) - err := d.DecodeElement(&disk, &start) - if err != nil { - return err - } - *a = DomainDisk(disk) - return nil -} - -func (d *DomainDisk) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainDisk) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -type domainInputSource DomainInputSource - -type domainInputSourcePassthrough struct { - DomainInputSourcePassthrough - domainInputSource -} - -type domainInputSourceEVDev struct { - DomainInputSourceEVDev - domainInputSource -} - -func (a *DomainInputSource) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if a.Passthrough != nil { - passthrough := domainInputSourcePassthrough{ - *a.Passthrough, domainInputSource(*a), - } - return e.EncodeElement(&passthrough, start) - } else if a.EVDev != nil { - evdev := domainInputSourceEVDev{ - *a.EVDev, domainInputSource(*a), - } - return e.EncodeElement(&evdev, start) - } - return nil -} - -func (a *DomainInputSource) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - if a.Passthrough != nil { - passthrough := domainInputSourcePassthrough{ - *a.Passthrough, domainInputSource(*a), - } - err := d.DecodeElement(&passthrough, &start) - if err != nil { - return err - } - *a = DomainInputSource(passthrough.domainInputSource) - a.Passthrough = &passthrough.DomainInputSourcePassthrough - } else if a.EVDev != nil { - evdev := domainInputSourceEVDev{ - *a.EVDev, domainInputSource(*a), - } - err := d.DecodeElement(&evdev, &start) - if err != nil { - return err - } - *a = DomainInputSource(evdev.domainInputSource) - a.EVDev = &evdev.DomainInputSourceEVDev - } - return nil -} - -type domainInput DomainInput - -func (a *DomainInput) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "input" - input := domainInput(*a) - return e.EncodeElement(input, start) -} - -func (a *DomainInput) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if ok { - a.Source = &DomainInputSource{} - if typ == "passthrough" { - a.Source.Passthrough = &DomainInputSourcePassthrough{} - } else if typ == "evdev" { - a.Source.EVDev = &DomainInputSourceEVDev{} - } - } - input := domainInput(*a) - err := d.DecodeElement(&input, &start) - if err != nil { - return err - } - *a = DomainInput(input) - return nil -} - -func (a *DomainFilesystemSource) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if a.Mount != nil { - return e.EncodeElement(a.Mount, start) - } else if a.Block != nil { - return e.EncodeElement(a.Block, start) - } else if a.File != nil { - return e.EncodeElement(a.File, start) - } else if a.Template != nil { - return e.EncodeElement(a.Template, start) - } else if a.RAM != nil { - return e.EncodeElement(a.RAM, start) - } else if a.Bind != nil { - return e.EncodeElement(a.Bind, start) - } else if a.Volume != nil { - return e.EncodeElement(a.Volume, start) - } - return nil -} - -func (a *DomainFilesystemSource) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - if a.Mount != nil { - return d.DecodeElement(a.Mount, &start) - } else if a.Block != nil { - return d.DecodeElement(a.Block, &start) - } else if a.File != nil { - return d.DecodeElement(a.File, &start) - } else if a.Template != nil { - return d.DecodeElement(a.Template, &start) - } else if a.RAM != nil { - return d.DecodeElement(a.RAM, &start) - } else if a.Bind != nil { - return d.DecodeElement(a.Bind, &start) - } else if a.Volume != nil { - return d.DecodeElement(a.Volume, &start) - } - return nil -} - -type domainFilesystem DomainFilesystem - -func (a *DomainFilesystem) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "filesystem" - if a.Source != nil { - if a.Source.Mount != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "mount", - }) - } else if a.Source.Block != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "block", - }) - } else if a.Source.File != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "file", - }) - } else if a.Source.Template != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "template", - }) - } else if a.Source.RAM != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "ram", - }) - } else if a.Source.Bind != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "bind", - }) - } else if a.Source.Volume != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "volume", - }) - } - } - fs := domainFilesystem(*a) - return e.EncodeElement(fs, start) -} - -func (a *DomainFilesystem) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "mount" - } - a.Source = &DomainFilesystemSource{} - if typ == "mount" { - a.Source.Mount = &DomainFilesystemSourceMount{} - } else if typ == "block" { - a.Source.Block = &DomainFilesystemSourceBlock{} - } else if typ == "file" { - a.Source.File = &DomainFilesystemSourceFile{} - } else if typ == "template" { - a.Source.Template = &DomainFilesystemSourceTemplate{} - } else if typ == "ram" { - a.Source.RAM = &DomainFilesystemSourceRAM{} - } else if typ == "bind" { - a.Source.Bind = &DomainFilesystemSourceBind{} - } else if typ == "volume" { - a.Source.Volume = &DomainFilesystemSourceVolume{} - } - fs := domainFilesystem(*a) - err := d.DecodeElement(&fs, &start) - if err != nil { - return err - } - *a = DomainFilesystem(fs) - return nil -} - -func (d *DomainFilesystem) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainFilesystem) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (a *DomainInterfaceVirtualPortParams) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "parameters" - if a.Any != nil { - return e.EncodeElement(a.Any, start) - } else if a.VEPA8021QBG != nil { - return e.EncodeElement(a.VEPA8021QBG, start) - } else if a.VNTag8011QBH != nil { - return e.EncodeElement(a.VNTag8011QBH, start) - } else if a.OpenVSwitch != nil { - return e.EncodeElement(a.OpenVSwitch, start) - } else if a.MidoNet != nil { - return e.EncodeElement(a.MidoNet, start) - } - return nil -} - -func (a *DomainInterfaceVirtualPortParams) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - if a.Any != nil { - return d.DecodeElement(a.Any, &start) - } else if a.VEPA8021QBG != nil { - return d.DecodeElement(a.VEPA8021QBG, &start) - } else if a.VNTag8011QBH != nil { - return d.DecodeElement(a.VNTag8011QBH, &start) - } else if a.OpenVSwitch != nil { - return d.DecodeElement(a.OpenVSwitch, &start) - } else if a.MidoNet != nil { - return d.DecodeElement(a.MidoNet, &start) - } - return nil -} - -type domainInterfaceVirtualPort DomainInterfaceVirtualPort - -func (a *DomainInterfaceVirtualPort) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "virtualport" - if a.Params != nil { - if a.Params.Any != nil { - /* no type attr wanted */ - } else if a.Params.VEPA8021QBG != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "802.1Qbg", - }) - } else if a.Params.VNTag8011QBH != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "802.1Qbh", - }) - } else if a.Params.OpenVSwitch != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "openvswitch", - }) - } else if a.Params.MidoNet != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "midonet", - }) - } - } - vp := domainInterfaceVirtualPort(*a) - return e.EncodeElement(&vp, start) -} - -func (a *DomainInterfaceVirtualPort) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - a.Params = &DomainInterfaceVirtualPortParams{} - if !ok { - var any DomainInterfaceVirtualPortParamsAny - a.Params.Any = &any - } else if typ == "802.1Qbg" { - var vepa DomainInterfaceVirtualPortParamsVEPA8021QBG - a.Params.VEPA8021QBG = &vepa - } else if typ == "802.1Qbh" { - var vntag DomainInterfaceVirtualPortParamsVNTag8021QBH - a.Params.VNTag8011QBH = &vntag - } else if typ == "openvswitch" { - var ovs DomainInterfaceVirtualPortParamsOpenVSwitch - a.Params.OpenVSwitch = &ovs - } else if typ == "midonet" { - var mido DomainInterfaceVirtualPortParamsMidoNet - a.Params.MidoNet = &mido - } - - vp := domainInterfaceVirtualPort(*a) - err := d.DecodeElement(&vp, &start) - if err != nil { - return err - } - *a = DomainInterfaceVirtualPort(vp) - return nil -} - -func (a *DomainInterfaceSourceHostdev) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - e.EncodeToken(start) - if a.PCI != nil { - addr := xml.StartElement{ - Name: xml.Name{Local: "address"}, - } - addr.Attr = append(addr.Attr, xml.Attr{ - xml.Name{Local: "type"}, "pci", - }) - e.EncodeElement(a.PCI.Address, addr) - } else if a.USB != nil { - addr := xml.StartElement{ - Name: xml.Name{Local: "address"}, - } - addr.Attr = append(addr.Attr, xml.Attr{ - xml.Name{Local: "type"}, "usb", - }) - e.EncodeElement(a.USB.Address, addr) - } - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainInterfaceSourceHostdev) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for { - tok, err := d.Token() - if err != nil { - if err == io.EOF { - break - } - return err - } - - switch tok := tok.(type) { - case xml.StartElement: - if tok.Name.Local == "address" { - typ, ok := getAttr(tok.Attr, "type") - if !ok { - return fmt.Errorf("Missing hostdev address type attribute") - } - - if typ == "pci" { - a.PCI = &DomainHostdevSubsysPCISource{ - "", - &DomainAddressPCI{}, - } - err := d.DecodeElement(a.PCI.Address, &tok) - if err != nil { - return err - } - } else if typ == "usb" { - a.USB = &DomainHostdevSubsysUSBSource{ - "", - "", - &DomainAddressUSB{}, - &DomainHostDevProductVendorID{}, - &DomainHostDevProductVendorID{}, - } - err := d.DecodeElement(a.USB, &tok) - if err != nil { - return err - } - } - } - } - } - d.Skip() - return nil -} - -func (a *DomainInterfaceSourceVHostUser) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if a.Chardev != nil { - typ := getChardevSourceType(a.Chardev) - if typ != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, typ, - }) - } - return e.EncodeElement(a.Chardev, start) - } else if a.Dev != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "dev"}, a.Dev, - }) - e.EncodeToken(start) - e.EncodeToken(start.End()) - e.Flush() - } - return nil -} - -func (a *DomainInterfaceSourceVHostUser) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - dev, ok := getAttr(start.Attr, "dev") - if ok { - a.Dev = dev - d.Skip() - return nil - } else { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "unix" - } - a.Chardev = createChardevSource(typ) - d.DecodeElement(a.Chardev, &start) - } - return nil -} - -func (a *DomainInterfaceSource) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if a.User != nil { - if a.User.Dev != "" { - return e.EncodeElement(a.User, start) - } else { - return nil - } - } else if a.Ethernet != nil { - if len(a.Ethernet.IP) > 0 && len(a.Ethernet.Route) > 0 { - return e.EncodeElement(a.Ethernet, start) - } - return nil - } else if a.VHostUser != nil { - return e.EncodeElement(a.VHostUser, start) - } else if a.Server != nil { - return e.EncodeElement(a.Server, start) - } else if a.Client != nil { - return e.EncodeElement(a.Client, start) - } else if a.MCast != nil { - return e.EncodeElement(a.MCast, start) - } else if a.Network != nil { - return e.EncodeElement(a.Network, start) - } else if a.Bridge != nil { - return e.EncodeElement(a.Bridge, start) - } else if a.Internal != nil { - return e.EncodeElement(a.Internal, start) - } else if a.Direct != nil { - return e.EncodeElement(a.Direct, start) - } else if a.Hostdev != nil { - return e.EncodeElement(a.Hostdev, start) - } else if a.UDP != nil { - return e.EncodeElement(a.UDP, start) - } else if a.VDPA != nil { - return e.EncodeElement(a.VDPA, start) - } else if a.Null != nil { - return e.EncodeElement(a.Null, start) - } else if a.VDS != nil { - return e.EncodeElement(a.VDS, start) - } - return nil -} - -func (a *DomainInterfaceSource) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - if a.User != nil { - return d.DecodeElement(a.User, &start) - } else if a.Ethernet != nil { - return d.DecodeElement(a.Ethernet, &start) - } else if a.VHostUser != nil { - return d.DecodeElement(a.VHostUser, &start) - } else if a.Server != nil { - return d.DecodeElement(a.Server, &start) - } else if a.Client != nil { - return d.DecodeElement(a.Client, &start) - } else if a.MCast != nil { - return d.DecodeElement(a.MCast, &start) - } else if a.Network != nil { - return d.DecodeElement(a.Network, &start) - } else if a.Bridge != nil { - return d.DecodeElement(a.Bridge, &start) - } else if a.Internal != nil { - return d.DecodeElement(a.Internal, &start) - } else if a.Direct != nil { - return d.DecodeElement(a.Direct, &start) - } else if a.Hostdev != nil { - return d.DecodeElement(a.Hostdev, &start) - } else if a.UDP != nil { - return d.DecodeElement(a.UDP, &start) - } else if a.VDPA != nil { - return d.DecodeElement(a.VDPA, &start) - } else if a.Null != nil { - return d.DecodeElement(a.Null, &start) - } else if a.VDS != nil { - return d.DecodeElement(a.VDS, &start) - } - return nil -} - -type domainInterface DomainInterface - -func (a *DomainInterface) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "interface" - if a.Source != nil { - if a.Source.User != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "user", - }) - } else if a.Source.Ethernet != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "ethernet", - }) - } else if a.Source.VHostUser != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vhostuser", - }) - } else if a.Source.Server != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "server", - }) - } else if a.Source.Client != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "client", - }) - } else if a.Source.MCast != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "mcast", - }) - } else if a.Source.Network != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "network", - }) - } else if a.Source.Bridge != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "bridge", - }) - } else if a.Source.Internal != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "internal", - }) - } else if a.Source.Direct != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "direct", - }) - } else if a.Source.Hostdev != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "hostdev", - }) - } else if a.Source.UDP != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "udp", - }) - } else if a.Source.VDPA != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vdpa", - }) - } else if a.Source.Null != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "null", - }) - } else if a.Source.VDS != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vds", - }) - } - } - fs := domainInterface(*a) - return e.EncodeElement(fs, start) -} - -func (a *DomainInterface) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing interface type attribute") - } - a.Source = &DomainInterfaceSource{} - if typ == "user" { - a.Source.User = &DomainInterfaceSourceUser{} - } else if typ == "ethernet" { - a.Source.Ethernet = &DomainInterfaceSourceEthernet{} - } else if typ == "vhostuser" { - a.Source.VHostUser = &DomainInterfaceSourceVHostUser{} - } else if typ == "server" { - a.Source.Server = &DomainInterfaceSourceServer{} - } else if typ == "client" { - a.Source.Client = &DomainInterfaceSourceClient{} - } else if typ == "mcast" { - a.Source.MCast = &DomainInterfaceSourceMCast{} - } else if typ == "network" { - a.Source.Network = &DomainInterfaceSourceNetwork{} - } else if typ == "bridge" { - a.Source.Bridge = &DomainInterfaceSourceBridge{} - } else if typ == "internal" { - a.Source.Internal = &DomainInterfaceSourceInternal{} - } else if typ == "direct" { - a.Source.Direct = &DomainInterfaceSourceDirect{} - } else if typ == "hostdev" { - a.Source.Hostdev = &DomainInterfaceSourceHostdev{} - } else if typ == "udp" { - a.Source.UDP = &DomainInterfaceSourceUDP{} - } else if typ == "vdpa" { - a.Source.VDPA = &DomainInterfaceSourceVDPA{} - } else if typ == "null" { - a.Source.Null = &DomainInterfaceSourceNull{} - } else if typ == "vds" { - a.Source.VDS = &DomainInterfaceSourceVDS{} - } - fs := domainInterface(*a) - err := d.DecodeElement(&fs, &start) - if err != nil { - return err - } - *a = DomainInterface(fs) - return nil -} - -func (d *DomainInterface) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainInterface) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -type domainSmartcard DomainSmartcard - -func (a *DomainSmartcard) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "smartcard" - if a.Passthrough != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "mode"}, "passthrough", - }) - typ := getChardevSourceType(a.Passthrough) - if typ != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, typ, - }) - } - } else if a.Host != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "mode"}, "host", - }) - } else if len(a.HostCerts) != 0 { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "mode"}, "host-certificates", - }) - } - smartcard := domainSmartcard(*a) - return e.EncodeElement(smartcard, start) -} - -func (a *DomainSmartcard) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - mode, ok := getAttr(start.Attr, "mode") - if !ok { - return fmt.Errorf("Missing mode on smartcard device") - } - if mode == "host" { - a.Host = &DomainSmartcardHost{} - } else if mode == "passthrough" { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "pty" - } - a.Passthrough = createChardevSource(typ) - } - smartcard := domainSmartcard(*a) - err := d.DecodeElement(&smartcard, &start) - if err != nil { - return err - } - *a = DomainSmartcard(smartcard) - return nil -} - -func (d *DomainSmartcard) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainSmartcard) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (a *DomainTPMBackendExternalSource) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "source" - src := DomainChardevSource(*a) - typ := getChardevSourceType(&src) - if typ != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, typ, - }) - } - return e.EncodeElement(&src, start) -} - -func (a *DomainTPMBackendExternalSource) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "unix" - } - src := createChardevSource(typ) - err := d.DecodeElement(&src, &start) - if err != nil { - return err - } - *a = DomainTPMBackendExternalSource(*src) - return nil -} - -func (a *DomainTPMBackend) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "backend" - if a.Passthrough != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "passthrough", - }) - err := e.EncodeElement(a.Passthrough, start) - if err != nil { - return err - } - } else if a.Emulator != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "emulator", - }) - err := e.EncodeElement(a.Emulator, start) - if err != nil { - return err - } - } else if a.External != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "external", - }) - err := e.EncodeElement(a.External, start) - if err != nil { - return err - } - } - return nil -} - -func (a *DomainTPMBackend) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing TPM backend type") - } - if typ == "passthrough" { - a.Passthrough = &DomainTPMBackendPassthrough{} - err := d.DecodeElement(a.Passthrough, &start) - if err != nil { - return err - } - } else if typ == "emulator" { - a.Emulator = &DomainTPMBackendEmulator{} - err := d.DecodeElement(a.Emulator, &start) - if err != nil { - return err - } - } else if typ == "external" { - a.External = &DomainTPMBackendExternal{} - err := d.DecodeElement(a.External, &start) - if err != nil { - return err - } - } else { - d.Skip() - } - return nil -} - -func (a *DomainTPMBackendSource) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "source" - if a.File != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "file", - }) - err := e.EncodeElement(a.File, start) - if err != nil { - return err - } - } else if a.Dir != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "dir", - }) - err := e.EncodeElement(a.Dir, start) - if err != nil { - return err - } - } - return nil -} - -func (a *DomainTPMBackendSource) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing TPM source type") - } - if typ == "file" { - a.File = &DomainTPMBackendSourceFile{} - err := d.DecodeElement(a.File, &start) - if err != nil { - return err - } - } else if typ == "dir" { - a.Dir = &DomainTPMBackendSourceDir{} - err := d.DecodeElement(a.Dir, &start) - if err != nil { - return err - } - } else { - d.Skip() - } - return nil -} - -func (d *DomainTPM) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainTPM) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (d *DomainShmem) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainShmem) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func getChardevSourceType(s *DomainChardevSource) string { - if s.Null != nil { - return "null" - } else if s.VC != nil { - return "vc" - } else if s.Pty != nil { - return "pty" - } else if s.Dev != nil { - return "dev" - } else if s.File != nil { - return "file" - } else if s.Pipe != nil { - return "pipe" - } else if s.StdIO != nil { - return "stdio" - } else if s.UDP != nil { - return "udp" - } else if s.TCP != nil { - return "tcp" - } else if s.UNIX != nil { - return "unix" - } else if s.SpiceVMC != nil { - return "spicevmc" - } else if s.SpicePort != nil { - return "spiceport" - } else if s.NMDM != nil { - return "nmdm" - } else if s.QEMUVDAgent != nil { - return "qemu-vdagent" - } else if s.DBus != nil { - return "dbus" - } - return "" -} - -func createChardevSource(typ string) *DomainChardevSource { - switch typ { - case "null": - return &DomainChardevSource{ - Null: &DomainChardevSourceNull{}, - } - case "vc": - return &DomainChardevSource{ - VC: &DomainChardevSourceVC{}, - } - case "pty": - return &DomainChardevSource{ - Pty: &DomainChardevSourcePty{}, - } - case "dev": - return &DomainChardevSource{ - Dev: &DomainChardevSourceDev{}, - } - case "file": - return &DomainChardevSource{ - File: &DomainChardevSourceFile{}, - } - case "pipe": - return &DomainChardevSource{ - Pipe: &DomainChardevSourcePipe{}, - } - case "stdio": - return &DomainChardevSource{ - StdIO: &DomainChardevSourceStdIO{}, - } - case "udp": - return &DomainChardevSource{ - UDP: &DomainChardevSourceUDP{}, - } - case "tcp": - return &DomainChardevSource{ - TCP: &DomainChardevSourceTCP{}, - } - case "unix": - return &DomainChardevSource{ - UNIX: &DomainChardevSourceUNIX{}, - } - case "spicevmc": - return &DomainChardevSource{ - SpiceVMC: &DomainChardevSourceSpiceVMC{}, - } - case "spiceport": - return &DomainChardevSource{ - SpicePort: &DomainChardevSourceSpicePort{}, - } - case "nmdm": - return &DomainChardevSource{ - NMDM: &DomainChardevSourceNMDM{}, - } - case "qemu-vdagent": - return &DomainChardevSource{ - QEMUVDAgent: &DomainChardevSourceQEMUVDAgent{}, - } - case "dbus": - return &DomainChardevSource{ - DBus: &DomainChardevSourceDBus{}, - } - } - - return nil -} - -type domainChardevSourceUDPFlat struct { - Mode string `xml:"mode,attr"` - Host string `xml:"host,attr,omitempty"` - Service string `xml:"service,attr,omitempty"` -} - -func (a *DomainChardevSource) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if a.Null != nil { - return nil - } else if a.VC != nil { - return nil - } else if a.Pty != nil { - if a.Pty.Path != "" { - return e.EncodeElement(a.Pty, start) - } - return nil - } else if a.Dev != nil { - return e.EncodeElement(a.Dev, start) - } else if a.File != nil { - return e.EncodeElement(a.File, start) - } else if a.Pipe != nil { - return e.EncodeElement(a.Pipe, start) - } else if a.StdIO != nil { - return nil - } else if a.UDP != nil { - srcs := []domainChardevSourceUDPFlat{ - domainChardevSourceUDPFlat{ - Mode: "bind", - Host: a.UDP.BindHost, - Service: a.UDP.BindService, - }, - domainChardevSourceUDPFlat{ - Mode: "connect", - Host: a.UDP.ConnectHost, - Service: a.UDP.ConnectService, - }, - } - if srcs[0].Host != "" || srcs[0].Service != "" { - err := e.EncodeElement(&srcs[0], start) - if err != nil { - return err - } - } - if srcs[1].Host != "" || srcs[1].Service != "" { - err := e.EncodeElement(&srcs[1], start) - if err != nil { - return err - } - } - } else if a.TCP != nil { - return e.EncodeElement(a.TCP, start) - } else if a.UNIX != nil { - if a.UNIX.Path == "" && a.UNIX.Mode == "" { - return nil - } - return e.EncodeElement(a.UNIX, start) - } else if a.SpiceVMC != nil { - return nil - } else if a.SpicePort != nil { - return e.EncodeElement(a.SpicePort, start) - } else if a.NMDM != nil { - if a.NMDM.Master != "" && a.NMDM.Slave != "" { - return e.EncodeElement(a.NMDM, start) - } - } else if a.QEMUVDAgent != nil { - return e.EncodeElement(a.QEMUVDAgent, start) - } else if a.DBus != nil { - return e.EncodeElement(a.DBus, start) - } - return nil -} - -func (a *DomainChardevSource) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - if a.Null != nil { - d.Skip() - return nil - } else if a.VC != nil { - d.Skip() - return nil - } else if a.Pty != nil { - return d.DecodeElement(a.Pty, &start) - } else if a.Dev != nil { - return d.DecodeElement(a.Dev, &start) - } else if a.File != nil { - return d.DecodeElement(a.File, &start) - } else if a.Pipe != nil { - return d.DecodeElement(a.Pipe, &start) - } else if a.StdIO != nil { - d.Skip() - return nil - } else if a.UDP != nil { - src := domainChardevSourceUDPFlat{} - err := d.DecodeElement(&src, &start) - if src.Mode == "connect" { - a.UDP.ConnectHost = src.Host - a.UDP.ConnectService = src.Service - } else { - a.UDP.BindHost = src.Host - a.UDP.BindService = src.Service - } - return err - } else if a.TCP != nil { - return d.DecodeElement(a.TCP, &start) - } else if a.UNIX != nil { - return d.DecodeElement(a.UNIX, &start) - } else if a.SpiceVMC != nil { - d.Skip() - return nil - } else if a.SpicePort != nil { - return d.DecodeElement(a.SpicePort, &start) - } else if a.NMDM != nil { - return d.DecodeElement(a.NMDM, &start) - } else if a.QEMUVDAgent != nil { - return d.DecodeElement(a.QEMUVDAgent, &start) - } else if a.DBus != nil { - return d.DecodeElement(a.DBus, &start) - } - return nil -} - -type domainConsole DomainConsole - -func (a *DomainConsole) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "console" - if a.Source != nil { - typ := getChardevSourceType(a.Source) - if typ != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, typ, - }) - } - } - fs := domainConsole(*a) - return e.EncodeElement(fs, start) -} - -func (a *DomainConsole) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "pty" - } - a.Source = createChardevSource(typ) - con := domainConsole(*a) - err := d.DecodeElement(&con, &start) - if err != nil { - return err - } - *a = DomainConsole(con) - return nil -} - -func (d *DomainConsole) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainConsole) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -type domainSerial DomainSerial - -func (a *DomainSerial) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "serial" - if a.Source != nil { - typ := getChardevSourceType(a.Source) - if typ != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, typ, - }) - } - } - s := domainSerial(*a) - return e.EncodeElement(s, start) -} - -func (a *DomainSerial) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "pty" - } - a.Source = createChardevSource(typ) - con := domainSerial(*a) - err := d.DecodeElement(&con, &start) - if err != nil { - return err - } - *a = DomainSerial(con) - return nil -} - -func (d *DomainSerial) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainSerial) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -type domainParallel DomainParallel - -func (a *DomainParallel) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "parallel" - if a.Source != nil { - typ := getChardevSourceType(a.Source) - if typ != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, typ, - }) - } - } - s := domainParallel(*a) - return e.EncodeElement(s, start) -} - -func (a *DomainParallel) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "pty" - } - a.Source = createChardevSource(typ) - con := domainParallel(*a) - err := d.DecodeElement(&con, &start) - if err != nil { - return err - } - *a = DomainParallel(con) - return nil -} - -func (d *DomainParallel) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainParallel) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (d *DomainInput) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainInput) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (d *DomainVideo) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainVideo) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -type domainChannelTarget DomainChannelTarget - -func (a *DomainChannelTarget) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if a.VirtIO != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "virtio", - }) - return e.EncodeElement(a.VirtIO, start) - } else if a.Xen != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "xen", - }) - return e.EncodeElement(a.Xen, start) - } else if a.GuestFWD != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "guestfwd", - }) - return e.EncodeElement(a.GuestFWD, start) - } - return nil -} - -func (a *DomainChannelTarget) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing channel target type") - } - if typ == "virtio" { - a.VirtIO = &DomainChannelTargetVirtIO{} - return d.DecodeElement(a.VirtIO, &start) - } else if typ == "xen" { - a.Xen = &DomainChannelTargetXen{} - return d.DecodeElement(a.Xen, &start) - } else if typ == "guestfwd" { - a.GuestFWD = &DomainChannelTargetGuestFWD{} - return d.DecodeElement(a.GuestFWD, &start) - } - d.Skip() - return nil -} - -type domainChannel DomainChannel - -func (a *DomainChannel) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "channel" - if a.Source != nil { - typ := getChardevSourceType(a.Source) - if typ != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, typ, - }) - } - } - fs := domainChannel(*a) - return e.EncodeElement(fs, start) -} - -func (a *DomainChannel) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "pty" - } - a.Source = createChardevSource(typ) - con := domainChannel(*a) - err := d.DecodeElement(&con, &start) - if err != nil { - return err - } - *a = DomainChannel(con) - return nil -} - -func (d *DomainChannel) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainChannel) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (a *DomainRedirFilterUSB) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "class", a.Class, "0x%02x") - marshalUintAttr(&start, "vendor", a.Vendor, "0x%04x") - marshalUintAttr(&start, "product", a.Product, "0x%04x") - if a.Version != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "version"}, a.Version, - }) - } - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "allow"}, a.Allow, - }) - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainRedirFilterUSB) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "class" && attr.Value != "-1" { - if err := unmarshalUintAttr(attr.Value, &a.Class, 0); err != nil { - return err - } - } else if attr.Name.Local == "product" && attr.Value != "-1" { - if err := unmarshalUintAttr(attr.Value, &a.Product, 0); err != nil { - return err - } - } else if attr.Name.Local == "vendor" && attr.Value != "-1" { - if err := unmarshalUintAttr(attr.Value, &a.Vendor, 0); err != nil { - return err - } - } else if attr.Name.Local == "version" && attr.Value != "-1" { - a.Version = attr.Value - } else if attr.Name.Local == "allow" { - a.Allow = attr.Value - } - } - d.Skip() - return nil -} - -type domainRedirDev DomainRedirDev - -func (a *DomainRedirDev) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "redirdev" - if a.Source != nil { - typ := getChardevSourceType(a.Source) - if typ != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, typ, - }) - } - } - fs := domainRedirDev(*a) - return e.EncodeElement(fs, start) -} - -func (a *DomainRedirDev) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "pty" - } - a.Source = createChardevSource(typ) - con := domainRedirDev(*a) - err := d.DecodeElement(&con, &start) - if err != nil { - return err - } - *a = DomainRedirDev(con) - return nil -} - -func (d *DomainRedirDev) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainRedirDev) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (d *DomainMemBalloon) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainMemBalloon) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (d *DomainVSock) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainVSock) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (d *DomainSound) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainSound) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -type domainRNGBackendEGD DomainRNGBackendEGD - -func (a *DomainRNGBackendEGD) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "backend" - if a.Source != nil { - typ := getChardevSourceType(a.Source) - if typ != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, typ, - }) - } - } - egd := domainRNGBackendEGD(*a) - return e.EncodeElement(egd, start) -} - -func (a *DomainRNGBackendEGD) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "pty" - } - a.Source = createChardevSource(typ) - con := domainRNGBackendEGD(*a) - err := d.DecodeElement(&con, &start) - if err != nil { - return err - } - *a = DomainRNGBackendEGD(con) - return nil -} - -func (a *DomainRNGBackend) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if a.Random != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "model"}, "random", - }) - return e.EncodeElement(a.Random, start) - } else if a.EGD != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "model"}, "egd", - }) - return e.EncodeElement(a.EGD, start) - } else if a.BuiltIn != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "model"}, "builtin", - }) - return e.EncodeElement(a.BuiltIn, start) - } - return nil -} - -func (a *DomainRNGBackend) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - model, ok := getAttr(start.Attr, "model") - if !ok { - return nil - } - if model == "random" { - a.Random = &DomainRNGBackendRandom{} - err := d.DecodeElement(a.Random, &start) - if err != nil { - return err - } - } else if model == "egd" { - a.EGD = &DomainRNGBackendEGD{} - err := d.DecodeElement(a.EGD, &start) - if err != nil { - return err - } - } else if model == "builtin" { - a.BuiltIn = &DomainRNGBackendBuiltIn{} - err := d.DecodeElement(a.BuiltIn, &start) - if err != nil { - return err - } - } - d.Skip() - return nil -} - -func (d *DomainRNG) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainRNG) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (a *DomainHostdevSubsysSCSISource) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if a.Host != nil { - return e.EncodeElement(a.Host, start) - } else if a.ISCSI != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "protocol"}, "iscsi", - }) - return e.EncodeElement(a.ISCSI, start) - } - return nil -} - -func (a *DomainHostdevSubsysSCSISource) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - proto, ok := getAttr(start.Attr, "protocol") - if !ok { - a.Host = &DomainHostdevSubsysSCSISourceHost{} - err := d.DecodeElement(a.Host, &start) - if err != nil { - return err - } - } - if proto == "iscsi" { - a.ISCSI = &DomainHostdevSubsysSCSISourceISCSI{} - err := d.DecodeElement(a.ISCSI, &start) - if err != nil { - return err - } - } - d.Skip() - return nil -} - -type domainHostdev DomainHostdev - -type domainHostdevSubsysSCSI struct { - DomainHostdevSubsysSCSI - domainHostdev -} - -type domainHostdevSubsysSCSIHost struct { - DomainHostdevSubsysSCSIHost - domainHostdev -} - -type domainHostdevSubsysUSB struct { - DomainHostdevSubsysUSB - domainHostdev -} - -type domainHostdevSubsysPCI struct { - DomainHostdevSubsysPCI - domainHostdev -} - -type domainHostdevSubsysMDev struct { - DomainHostdevSubsysMDev - domainHostdev -} - -type domainHostdevCapsStorage struct { - DomainHostdevCapsStorage - domainHostdev -} - -type domainHostdevCapsMisc struct { - DomainHostdevCapsMisc - domainHostdev -} - -type domainHostdevCapsNet struct { - DomainHostdevCapsNet - domainHostdev -} - -func (a *DomainHostdev) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "hostdev" - if a.SubsysSCSI != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "mode"}, "subsystem", - }) - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "scsi", - }) - scsi := domainHostdevSubsysSCSI{} - scsi.domainHostdev = domainHostdev(*a) - scsi.DomainHostdevSubsysSCSI = *a.SubsysSCSI - return e.EncodeElement(scsi, start) - } else if a.SubsysSCSIHost != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "mode"}, "subsystem", - }) - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "scsi_host", - }) - scsi_host := domainHostdevSubsysSCSIHost{} - scsi_host.domainHostdev = domainHostdev(*a) - scsi_host.DomainHostdevSubsysSCSIHost = *a.SubsysSCSIHost - return e.EncodeElement(scsi_host, start) - } else if a.SubsysUSB != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "mode"}, "subsystem", - }) - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "usb", - }) - usb := domainHostdevSubsysUSB{} - usb.domainHostdev = domainHostdev(*a) - usb.DomainHostdevSubsysUSB = *a.SubsysUSB - return e.EncodeElement(usb, start) - } else if a.SubsysPCI != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "mode"}, "subsystem", - }) - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "pci", - }) - pci := domainHostdevSubsysPCI{} - pci.domainHostdev = domainHostdev(*a) - pci.DomainHostdevSubsysPCI = *a.SubsysPCI - return e.EncodeElement(pci, start) - } else if a.SubsysMDev != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "mode"}, "subsystem", - }) - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "mdev", - }) - mdev := domainHostdevSubsysMDev{} - mdev.domainHostdev = domainHostdev(*a) - mdev.DomainHostdevSubsysMDev = *a.SubsysMDev - return e.EncodeElement(mdev, start) - } else if a.CapsStorage != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "mode"}, "capabilities", - }) - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "storage", - }) - storage := domainHostdevCapsStorage{} - storage.domainHostdev = domainHostdev(*a) - storage.DomainHostdevCapsStorage = *a.CapsStorage - return e.EncodeElement(storage, start) - } else if a.CapsMisc != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "mode"}, "capabilities", - }) - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "misc", - }) - misc := domainHostdevCapsMisc{} - misc.domainHostdev = domainHostdev(*a) - misc.DomainHostdevCapsMisc = *a.CapsMisc - return e.EncodeElement(misc, start) - } else if a.CapsNet != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "mode"}, "capabilities", - }) - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "net", - }) - net := domainHostdevCapsNet{} - net.domainHostdev = domainHostdev(*a) - net.DomainHostdevCapsNet = *a.CapsNet - return e.EncodeElement(net, start) - } else { - gen := domainHostdev(*a) - return e.EncodeElement(gen, start) - } -} - -func (a *DomainHostdev) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - mode, ok := getAttr(start.Attr, "mode") - if !ok { - return fmt.Errorf("Missing 'mode' attribute on domain hostdev") - } - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing 'type' attribute on domain controller") - } - if mode == "subsystem" { - if typ == "scsi" { - var scsi domainHostdevSubsysSCSI - err := d.DecodeElement(&scsi, &start) - if err != nil { - return err - } - *a = DomainHostdev(scsi.domainHostdev) - a.SubsysSCSI = &scsi.DomainHostdevSubsysSCSI - return nil - } else if typ == "scsi_host" { - var scsi_host domainHostdevSubsysSCSIHost - err := d.DecodeElement(&scsi_host, &start) - if err != nil { - return err - } - *a = DomainHostdev(scsi_host.domainHostdev) - a.SubsysSCSIHost = &scsi_host.DomainHostdevSubsysSCSIHost - return nil - } else if typ == "usb" { - var usb domainHostdevSubsysUSB - err := d.DecodeElement(&usb, &start) - if err != nil { - return err - } - *a = DomainHostdev(usb.domainHostdev) - a.SubsysUSB = &usb.DomainHostdevSubsysUSB - return nil - } else if typ == "pci" { - var pci domainHostdevSubsysPCI - err := d.DecodeElement(&pci, &start) - if err != nil { - return err - } - *a = DomainHostdev(pci.domainHostdev) - a.SubsysPCI = &pci.DomainHostdevSubsysPCI - return nil - } else if typ == "mdev" { - var mdev domainHostdevSubsysMDev - err := d.DecodeElement(&mdev, &start) - if err != nil { - return err - } - *a = DomainHostdev(mdev.domainHostdev) - a.SubsysMDev = &mdev.DomainHostdevSubsysMDev - return nil - } - } else if mode == "capabilities" { - if typ == "storage" { - var storage domainHostdevCapsStorage - err := d.DecodeElement(&storage, &start) - if err != nil { - return err - } - *a = DomainHostdev(storage.domainHostdev) - a.CapsStorage = &storage.DomainHostdevCapsStorage - return nil - } else if typ == "misc" { - var misc domainHostdevCapsMisc - err := d.DecodeElement(&misc, &start) - if err != nil { - return err - } - *a = DomainHostdev(misc.domainHostdev) - a.CapsMisc = &misc.DomainHostdevCapsMisc - return nil - } else if typ == "net" { - var net domainHostdevCapsNet - err := d.DecodeElement(&net, &start) - if err != nil { - return err - } - *a = DomainHostdev(net.domainHostdev) - a.CapsNet = &net.DomainHostdevCapsNet - return nil - } - } - var gen domainHostdev - err := d.DecodeElement(&gen, &start) - if err != nil { - return err - } - *a = DomainHostdev(gen) - return nil -} - -func (d *DomainHostdev) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainHostdev) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (a *DomainGraphicListener) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "listen" - if a.Address != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "address", - }) - return e.EncodeElement(a.Address, start) - } else if a.Network != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "network", - }) - return e.EncodeElement(a.Network, start) - } else if a.Socket != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "socket", - }) - return e.EncodeElement(a.Socket, start) - } else { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "none", - }) - e.EncodeToken(start) - e.EncodeToken(start.End()) - } - return nil -} - -func (a *DomainGraphicListener) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing 'type' attribute on domain graphics listen") - } - if typ == "address" { - var addr DomainGraphicListenerAddress - err := d.DecodeElement(&addr, &start) - if err != nil { - return err - } - a.Address = &addr - return nil - } else if typ == "network" { - var net DomainGraphicListenerNetwork - err := d.DecodeElement(&net, &start) - if err != nil { - return err - } - a.Network = &net - return nil - } else if typ == "socket" { - var sock DomainGraphicListenerSocket - err := d.DecodeElement(&sock, &start) - if err != nil { - return err - } - a.Socket = &sock - return nil - } else if typ == "none" { - d.Skip() - } - return nil -} - -type domainGraphicSDL struct { - DomainGraphicSDL - Audio *DomainGraphicAudio `xml:"audio"` -} - -type domainGraphicVNC struct { - DomainGraphicVNC - Audio *DomainGraphicAudio `xml:"audio"` -} - -type domainGraphicRDP struct { - DomainGraphicRDP - Audio *DomainGraphicAudio `xml:"audio"` -} - -type domainGraphicDesktop struct { - DomainGraphicDesktop - Audio *DomainGraphicAudio `xml:"audio"` -} - -type domainGraphicSpice struct { - DomainGraphicSpice - Audio *DomainGraphicAudio `xml:"audio"` -} - -type domainGraphicEGLHeadless struct { - DomainGraphicEGLHeadless - Audio *DomainGraphicAudio `xml:"audio"` -} - -type domainGraphicDBus struct { - DomainGraphicDBus - Audio *DomainGraphicAudio `xml:"audio"` -} - -func (a *DomainGraphic) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "graphics" - if a.SDL != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "sdl", - }) - sdl := domainGraphicSDL{*a.SDL, a.Audio} - return e.EncodeElement(sdl, start) - } else if a.VNC != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vnc", - }) - vnc := domainGraphicVNC{*a.VNC, a.Audio} - return e.EncodeElement(vnc, start) - } else if a.RDP != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "rdp", - }) - rdp := domainGraphicRDP{*a.RDP, a.Audio} - return e.EncodeElement(rdp, start) - } else if a.Desktop != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "desktop", - }) - desktop := domainGraphicDesktop{*a.Desktop, a.Audio} - return e.EncodeElement(desktop, start) - } else if a.Spice != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "spice", - }) - spice := domainGraphicSpice{*a.Spice, a.Audio} - return e.EncodeElement(spice, start) - } else if a.EGLHeadless != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "egl-headless", - }) - egl := domainGraphicEGLHeadless{*a.EGLHeadless, a.Audio} - return e.EncodeElement(egl, start) - } else if a.DBus != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "dbus", - }) - dbus := domainGraphicDBus{*a.DBus, a.Audio} - return e.EncodeElement(dbus, start) - } - return nil -} - -func (a *DomainGraphic) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing 'type' attribute on domain graphics") - } - if typ == "sdl" { - var sdl domainGraphicSDL - err := d.DecodeElement(&sdl, &start) - if err != nil { - return err - } - a.SDL = &sdl.DomainGraphicSDL - a.Audio = sdl.Audio - return nil - } else if typ == "vnc" { - var vnc domainGraphicVNC - err := d.DecodeElement(&vnc, &start) - if err != nil { - return err - } - a.VNC = &vnc.DomainGraphicVNC - a.Audio = vnc.Audio - return nil - } else if typ == "rdp" { - var rdp domainGraphicRDP - err := d.DecodeElement(&rdp, &start) - if err != nil { - return err - } - a.RDP = &rdp.DomainGraphicRDP - a.Audio = rdp.Audio - return nil - } else if typ == "desktop" { - var desktop domainGraphicDesktop - err := d.DecodeElement(&desktop, &start) - if err != nil { - return err - } - a.Desktop = &desktop.DomainGraphicDesktop - a.Audio = desktop.Audio - return nil - } else if typ == "spice" { - var spice domainGraphicSpice - err := d.DecodeElement(&spice, &start) - if err != nil { - return err - } - a.Spice = &spice.DomainGraphicSpice - a.Audio = spice.Audio - return nil - } else if typ == "egl-headless" { - var egl domainGraphicEGLHeadless - err := d.DecodeElement(&egl, &start) - if err != nil { - return err - } - a.EGLHeadless = &egl.DomainGraphicEGLHeadless - a.Audio = egl.Audio - return nil - } else if typ == "dbus" { - var dbus domainGraphicDBus - err := d.DecodeElement(&dbus, &start) - if err != nil { - return err - } - a.DBus = &dbus.DomainGraphicDBus - a.Audio = dbus.Audio - return nil - } - return nil -} - -func (a *DomainAudio) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "audio" - if a.ID != 0 { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "id"}, fmt.Sprintf("%d", a.ID), - }) - } - if a.TimerPeriod != 0 { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "timerPeriod"}, fmt.Sprintf("%d", a.TimerPeriod), - }) - } - if a.None != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "none", - }) - return e.EncodeElement(a.None, start) - } else if a.ALSA != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "alsa", - }) - return e.EncodeElement(a.ALSA, start) - } else if a.CoreAudio != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "coreaudio", - }) - return e.EncodeElement(a.CoreAudio, start) - } else if a.Jack != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "jack", - }) - return e.EncodeElement(a.Jack, start) - } else if a.OSS != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "oss", - }) - return e.EncodeElement(a.OSS, start) - } else if a.PulseAudio != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "pulseaudio", - }) - return e.EncodeElement(a.PulseAudio, start) - } else if a.SDL != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "sdl", - }) - return e.EncodeElement(a.SDL, start) - } else if a.SPICE != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "spice", - }) - return e.EncodeElement(a.SPICE, start) - } else if a.File != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "file", - }) - return e.EncodeElement(a.File, start) - } else if a.DBus != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "dbus", - }) - return e.EncodeElement(a.DBus, start) - } else if a.PipeWire != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "pipewire", - }) - return e.EncodeElement(a.PipeWire, start) - } - return nil -} - -func (a *DomainAudio) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing 'type' attribute on domain audio") - } - id, ok := getAttr(start.Attr, "id") - if ok { - idval, err := strconv.ParseInt(id, 10, 32) - if err != nil { - return err - } - a.ID = int(idval) - } - - period, ok := getAttr(start.Attr, "timerPeriod") - if ok { - periodval, err := strconv.ParseUint(period, 10, 32) - if err != nil { - return err - } - a.TimerPeriod = uint(periodval) - } - - if typ == "none" { - var none DomainAudioNone - err := d.DecodeElement(&none, &start) - if err != nil { - return err - } - a.None = &none - return nil - } else if typ == "alsa" { - var alsa DomainAudioALSA - err := d.DecodeElement(&alsa, &start) - if err != nil { - return err - } - a.ALSA = &alsa - return nil - } else if typ == "coreaudio" { - var coreaudio DomainAudioCoreAudio - err := d.DecodeElement(&coreaudio, &start) - if err != nil { - return err - } - a.CoreAudio = &coreaudio - return nil - } else if typ == "jack" { - var jack DomainAudioJack - err := d.DecodeElement(&jack, &start) - if err != nil { - return err - } - a.Jack = &jack - return nil - } else if typ == "oss" { - var oss DomainAudioOSS - err := d.DecodeElement(&oss, &start) - if err != nil { - return err - } - a.OSS = &oss - return nil - } else if typ == "pulseaudio" { - var pulseaudio DomainAudioPulseAudio - err := d.DecodeElement(&pulseaudio, &start) - if err != nil { - return err - } - a.PulseAudio = &pulseaudio - return nil - } else if typ == "sdl" { - var sdl DomainAudioSDL - err := d.DecodeElement(&sdl, &start) - if err != nil { - return err - } - a.SDL = &sdl - return nil - } else if typ == "spice" { - var spice DomainAudioSPICE - err := d.DecodeElement(&spice, &start) - if err != nil { - return err - } - a.SPICE = &spice - return nil - } else if typ == "file" { - var file DomainAudioFile - err := d.DecodeElement(&file, &start) - if err != nil { - return err - } - a.File = &file - return nil - } else if typ == "dbus" { - var dbus DomainAudioDBus - err := d.DecodeElement(&dbus, &start) - if err != nil { - return err - } - a.DBus = &dbus - return nil - } else if typ == "pipewire" { - var pipewire DomainAudioPipeWire - err := d.DecodeElement(&pipewire, &start) - if err != nil { - return err - } - a.PipeWire = &pipewire - return nil - } - return nil -} - -func (d *DomainMemorydev) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainMemorydev) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (d *DomainWatchdog) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainWatchdog) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (a *DomainCryptoBackend) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "backend" - if a.BuiltIn != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "model"}, "builtin", - }) - } else if a.LKCF != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "model"}, "lkcf", - }) - } - marshalUintAttr(&start, "queues", &a.Queues, "%d") - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainCryptoBackend) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "model") - if !ok { - return fmt.Errorf("Missing 'model' attribute on domain crypto backend") - } - for _, attr := range start.Attr { - if attr.Name.Local == "queues" { - var v *uint - if err := unmarshalUintAttr(attr.Value, &v, 10); err != nil { - return err - } - if v != nil { - a.Queues = *v - } - } - } - - if typ == "builtin" { - var builtin DomainCryptoBackendBuiltIn - a.BuiltIn = &builtin - d.Skip() - return nil - } else if typ == "lkcf" { - var lkcf DomainCryptoBackendLKCF - a.LKCF = &lkcf - d.Skip() - return nil - } - - return nil -} - -func marshalUintAttr(start *xml.StartElement, name string, val *uint, format string) { - if val != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: name}, fmt.Sprintf(format, *val), - }) - } -} - -func marshalUint64Attr(start *xml.StartElement, name string, val *uint64, format string) { - if val != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: name}, fmt.Sprintf(format, *val), - }) - } -} - -func (a *DomainMemorydevTargetAddress) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "base", a.Base, "0x%08x") - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainAddressPCI) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "domain", a.Domain, "0x%04x") - marshalUintAttr(&start, "bus", a.Bus, "0x%02x") - marshalUintAttr(&start, "slot", a.Slot, "0x%02x") - marshalUintAttr(&start, "function", a.Function, "0x%x") - if a.MultiFunction != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "multifunction"}, a.MultiFunction, - }) - } - e.EncodeToken(start) - if a.ZPCI != nil { - zpci := xml.StartElement{} - zpci.Name.Local = "zpci" - err := e.EncodeElement(a.ZPCI, zpci) - if err != nil { - return err - } - } - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainAddressZPCI) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "uid", a.UID, "0x%04x") - marshalUintAttr(&start, "fid", a.FID, "0x%04x") - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainAddressUSB) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "bus", a.Bus, "%d") - if a.Port != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "port"}, a.Port, - }) - } - marshalUintAttr(&start, "device", a.Device, "%d") - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainAddressDrive) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "controller", a.Controller, "%d") - marshalUintAttr(&start, "bus", a.Bus, "%d") - marshalUintAttr(&start, "target", a.Target, "%d") - marshalUintAttr(&start, "unit", a.Unit, "%d") - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainAddressDIMM) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "slot", a.Slot, "%d") - marshalUint64Attr(&start, "base", a.Base, "0x%x") - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainAddressISA) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "iobase", a.IOBase, "0x%x") - marshalUintAttr(&start, "irq", a.IRQ, "0x%x") - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainAddressVirtioMMIO) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainAddressCCW) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "cssid", a.CSSID, "0x%x") - marshalUintAttr(&start, "ssid", a.SSID, "0x%x") - marshalUintAttr(&start, "devno", a.DevNo, "0x%04x") - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainAddressVirtioSerial) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "controller", a.Controller, "%d") - marshalUintAttr(&start, "bus", a.Bus, "%d") - marshalUintAttr(&start, "port", a.Port, "%d") - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainAddressSpaprVIO) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUint64Attr(&start, "reg", a.Reg, "0x%x") - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainAddressCCID) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "controller", a.Controller, "%d") - marshalUintAttr(&start, "slot", a.Slot, "%d") - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainAddressVirtioS390) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainAddressUnassigned) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *DomainAddress) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if a.USB != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "usb", - }) - return e.EncodeElement(a.USB, start) - } else if a.PCI != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "pci", - }) - return e.EncodeElement(a.PCI, start) - } else if a.Drive != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "drive", - }) - return e.EncodeElement(a.Drive, start) - } else if a.DIMM != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "dimm", - }) - return e.EncodeElement(a.DIMM, start) - } else if a.ISA != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "isa", - }) - return e.EncodeElement(a.ISA, start) - } else if a.VirtioMMIO != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "virtio-mmio", - }) - return e.EncodeElement(a.VirtioMMIO, start) - } else if a.CCW != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "ccw", - }) - return e.EncodeElement(a.CCW, start) - } else if a.VirtioSerial != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "virtio-serial", - }) - return e.EncodeElement(a.VirtioSerial, start) - } else if a.SpaprVIO != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "spapr-vio", - }) - return e.EncodeElement(a.SpaprVIO, start) - } else if a.CCID != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "ccid", - }) - return e.EncodeElement(a.CCID, start) - } else if a.VirtioS390 != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "virtio-s390", - }) - return e.EncodeElement(a.VirtioS390, start) - } else if a.Unassigned != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "unassigned", - }) - return e.EncodeElement(a.Unassigned, start) - } else { - return nil - } -} - -func unmarshalUint64Attr(valstr string, valptr **uint64, base int) error { - if base == 16 { - valstr = strings.TrimPrefix(valstr, "0x") - } - val, err := strconv.ParseUint(valstr, base, 64) - if err != nil { - return err - } - *valptr = &val - return nil -} - -func unmarshalUintAttr(valstr string, valptr **uint, base int) error { - if base == 16 { - valstr = strings.TrimPrefix(valstr, "0x") - } - val, err := strconv.ParseUint(valstr, base, 64) - if err != nil { - return err - } - vali := uint(val) - *valptr = &vali - return nil -} - -func (a *DomainMemorydevTargetAddress) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "base" { - if err := unmarshalUintAttr(attr.Value, &a.Base, 0); err != nil { - return err - } - } - } - - d.Skip() - return nil -} - -func (a *DomainAddressUSB) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "bus" { - if err := unmarshalUintAttr(attr.Value, &a.Bus, 10); err != nil { - return err - } - } else if attr.Name.Local == "port" { - a.Port = attr.Value - } else if attr.Name.Local == "device" { - if err := unmarshalUintAttr(attr.Value, &a.Device, 10); err != nil { - return err - } - } - } - d.Skip() - return nil -} - -func (a *DomainAddressPCI) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "domain" { - if err := unmarshalUintAttr(attr.Value, &a.Domain, 0); err != nil { - return err - } - } else if attr.Name.Local == "bus" { - if err := unmarshalUintAttr(attr.Value, &a.Bus, 0); err != nil { - return err - } - } else if attr.Name.Local == "slot" { - if err := unmarshalUintAttr(attr.Value, &a.Slot, 0); err != nil { - return err - } - } else if attr.Name.Local == "function" { - if err := unmarshalUintAttr(attr.Value, &a.Function, 0); err != nil { - return err - } - } else if attr.Name.Local == "multifunction" { - a.MultiFunction = attr.Value - } - } - - for { - tok, err := d.Token() - if err == io.EOF { - break - } - if err != nil { - return err - } - - switch tok := tok.(type) { - case xml.StartElement: - if tok.Name.Local == "zpci" { - a.ZPCI = &DomainAddressZPCI{} - err = d.DecodeElement(a.ZPCI, &tok) - if err != nil { - return err - } - } - } - } - return nil -} - -func (a *DomainAddressZPCI) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "fid" { - if err := unmarshalUintAttr(attr.Value, &a.FID, 0); err != nil { - return err - } - } else if attr.Name.Local == "uid" { - if err := unmarshalUintAttr(attr.Value, &a.UID, 0); err != nil { - return err - } - } - } - - d.Skip() - return nil -} - -func (a *DomainAddressDrive) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "controller" { - if err := unmarshalUintAttr(attr.Value, &a.Controller, 10); err != nil { - return err - } - } else if attr.Name.Local == "bus" { - if err := unmarshalUintAttr(attr.Value, &a.Bus, 10); err != nil { - return err - } - } else if attr.Name.Local == "target" { - if err := unmarshalUintAttr(attr.Value, &a.Target, 10); err != nil { - return err - } - } else if attr.Name.Local == "unit" { - if err := unmarshalUintAttr(attr.Value, &a.Unit, 10); err != nil { - return err - } - } - } - d.Skip() - return nil -} - -func (a *DomainAddressDIMM) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "slot" { - if err := unmarshalUintAttr(attr.Value, &a.Slot, 10); err != nil { - return err - } - } else if attr.Name.Local == "base" { - if err := unmarshalUint64Attr(attr.Value, &a.Base, 16); err != nil { - return err - } - } - } - d.Skip() - return nil -} - -func (a *DomainAddressISA) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "iobase" { - if err := unmarshalUintAttr(attr.Value, &a.IOBase, 16); err != nil { - return err - } - } else if attr.Name.Local == "irq" { - if err := unmarshalUintAttr(attr.Value, &a.IRQ, 16); err != nil { - return err - } - } - } - d.Skip() - return nil -} - -func (a *DomainAddressVirtioMMIO) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - d.Skip() - return nil -} - -func (a *DomainAddressCCW) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "cssid" { - if err := unmarshalUintAttr(attr.Value, &a.CSSID, 0); err != nil { - return err - } - } else if attr.Name.Local == "ssid" { - if err := unmarshalUintAttr(attr.Value, &a.SSID, 0); err != nil { - return err - } - } else if attr.Name.Local == "devno" { - if err := unmarshalUintAttr(attr.Value, &a.DevNo, 0); err != nil { - return err - } - } - } - d.Skip() - return nil -} - -func (a *DomainAddressVirtioSerial) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "controller" { - if err := unmarshalUintAttr(attr.Value, &a.Controller, 10); err != nil { - return err - } - } else if attr.Name.Local == "bus" { - if err := unmarshalUintAttr(attr.Value, &a.Bus, 10); err != nil { - return err - } - } else if attr.Name.Local == "port" { - if err := unmarshalUintAttr(attr.Value, &a.Port, 10); err != nil { - return err - } - } - } - d.Skip() - return nil -} - -func (a *DomainAddressSpaprVIO) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "reg" { - if err := unmarshalUint64Attr(attr.Value, &a.Reg, 16); err != nil { - return err - } - } - } - d.Skip() - return nil -} - -func (a *DomainAddressCCID) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "controller" { - if err := unmarshalUintAttr(attr.Value, &a.Controller, 10); err != nil { - return err - } - } else if attr.Name.Local == "slot" { - if err := unmarshalUintAttr(attr.Value, &a.Slot, 10); err != nil { - return err - } - } - } - d.Skip() - return nil -} - -func (a *DomainAddressVirtioS390) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - d.Skip() - return nil -} - -func (a *DomainAddressUnassigned) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - d.Skip() - return nil -} - -func (a *DomainAddress) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - var typ string - for _, attr := range start.Attr { - if attr.Name.Local == "type" { - typ = attr.Value - break - } - } - if typ == "" { - d.Skip() - return nil - } - - if typ == "usb" { - a.USB = &DomainAddressUSB{} - return d.DecodeElement(a.USB, &start) - } else if typ == "pci" { - a.PCI = &DomainAddressPCI{} - return d.DecodeElement(a.PCI, &start) - } else if typ == "drive" { - a.Drive = &DomainAddressDrive{} - return d.DecodeElement(a.Drive, &start) - } else if typ == "dimm" { - a.DIMM = &DomainAddressDIMM{} - return d.DecodeElement(a.DIMM, &start) - } else if typ == "isa" { - a.ISA = &DomainAddressISA{} - return d.DecodeElement(a.ISA, &start) - } else if typ == "virtio-mmio" { - a.VirtioMMIO = &DomainAddressVirtioMMIO{} - return d.DecodeElement(a.VirtioMMIO, &start) - } else if typ == "ccw" { - a.CCW = &DomainAddressCCW{} - return d.DecodeElement(a.CCW, &start) - } else if typ == "virtio-serial" { - a.VirtioSerial = &DomainAddressVirtioSerial{} - return d.DecodeElement(a.VirtioSerial, &start) - } else if typ == "spapr-vio" { - a.SpaprVIO = &DomainAddressSpaprVIO{} - return d.DecodeElement(a.SpaprVIO, &start) - } else if typ == "ccid" { - a.CCID = &DomainAddressCCID{} - return d.DecodeElement(a.CCID, &start) - } else if typ == "virtio-s390" { - a.VirtioS390 = &DomainAddressVirtioS390{} - return d.DecodeElement(a.VirtioS390, &start) - } else if typ == "unassigned" { - a.Unassigned = &DomainAddressUnassigned{} - return d.DecodeElement(a.Unassigned, &start) - } - - return nil -} - -func (d *DomainCPU) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), d) -} - -func (d *DomainCPU) Marshal() (string, error) { - doc, err := xml.MarshalIndent(d, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (a *DomainLaunchSecuritySEV) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - - if a.KernelHashes != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "kernelHashes"}, a.KernelHashes, - }) - } - - e.EncodeToken(start) - - if a.CBitPos != nil { - cbitpos := xml.StartElement{ - Name: xml.Name{Local: "cbitpos"}, - } - e.EncodeToken(cbitpos) - e.EncodeToken(xml.CharData(fmt.Sprintf("%d", *a.CBitPos))) - e.EncodeToken(cbitpos.End()) - } - - if a.ReducedPhysBits != nil { - reducedPhysBits := xml.StartElement{ - Name: xml.Name{Local: "reducedPhysBits"}, - } - e.EncodeToken(reducedPhysBits) - e.EncodeToken(xml.CharData(fmt.Sprintf("%d", *a.ReducedPhysBits))) - e.EncodeToken(reducedPhysBits.End()) - } - - if a.Policy != nil { - policy := xml.StartElement{ - Name: xml.Name{Local: "policy"}, - } - e.EncodeToken(policy) - e.EncodeToken(xml.CharData(fmt.Sprintf("0x%04x", *a.Policy))) - e.EncodeToken(policy.End()) - } - - if a.DHCert != "" { - dhcert := xml.StartElement{ - Name: xml.Name{Local: "dhCert"}, - } - e.EncodeToken(dhcert) - e.EncodeToken(xml.CharData(fmt.Sprintf("%s", a.DHCert))) - e.EncodeToken(dhcert.End()) - } - - if a.Session != "" { - session := xml.StartElement{ - Name: xml.Name{Local: "session"}, - } - e.EncodeToken(session) - e.EncodeToken(xml.CharData(fmt.Sprintf("%s", a.Session))) - e.EncodeToken(session.End()) - } - - e.EncodeToken(start.End()) - - return nil -} - -func (a *DomainLaunchSecuritySEV) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "kernelHashes" { - a.KernelHashes = attr.Value - } - } - - for { - tok, err := d.Token() - if err == io.EOF { - break - } - if err != nil { - return err - } - - switch tok := tok.(type) { - case xml.StartElement: - if tok.Name.Local == "policy" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - if err := unmarshalUintAttr(string(data), &a.Policy, 16); err != nil { - return err - } - } - } else if tok.Name.Local == "cbitpos" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - if err := unmarshalUintAttr(string(data), &a.CBitPos, 10); err != nil { - return err - } - } - } else if tok.Name.Local == "reducedPhysBits" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - if err := unmarshalUintAttr(string(data), &a.ReducedPhysBits, 10); err != nil { - return err - } - } - } else if tok.Name.Local == "dhCert" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - a.DHCert = string(data) - } - } else if tok.Name.Local == "session" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - a.Session = string(data) - } - } - } - } - return nil -} - -func (a *DomainLaunchSecuritySEVSNP) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - - if a.KernelHashes != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "kernelHashes"}, a.KernelHashes, - }) - } - - if a.AuthorKey != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "authorKey"}, a.AuthorKey, - }) - } - - if a.VCEK != "" { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "vcek"}, a.VCEK, - }) - } - - e.EncodeToken(start) - - if a.CBitPos != nil { - cbitpos := xml.StartElement{ - Name: xml.Name{Local: "cbitpos"}, - } - e.EncodeToken(cbitpos) - e.EncodeToken(xml.CharData(fmt.Sprintf("%d", *a.CBitPos))) - e.EncodeToken(cbitpos.End()) - } - - if a.ReducedPhysBits != nil { - reducedPhysBits := xml.StartElement{ - Name: xml.Name{Local: "reducedPhysBits"}, - } - e.EncodeToken(reducedPhysBits) - e.EncodeToken(xml.CharData(fmt.Sprintf("%d", *a.ReducedPhysBits))) - e.EncodeToken(reducedPhysBits.End()) - } - - if a.Policy != nil { - policy := xml.StartElement{ - Name: xml.Name{Local: "policy"}, - } - e.EncodeToken(policy) - e.EncodeToken(xml.CharData(fmt.Sprintf("0x%08x", *a.Policy))) - e.EncodeToken(policy.End()) - } - - if a.GuestVisibleWorkarounds != "" { - gvwo := xml.StartElement{ - Name: xml.Name{Local: "guestVisibleWorkarounds"}, - } - e.EncodeToken(gvwo) - e.EncodeToken(xml.CharData(fmt.Sprintf("%s", a.GuestVisibleWorkarounds))) - e.EncodeToken(gvwo.End()) - } - - if a.IDBlock != "" { - idBlock := xml.StartElement{ - Name: xml.Name{Local: "idBlock"}, - } - e.EncodeToken(idBlock) - e.EncodeToken(xml.CharData(fmt.Sprintf("%s", a.IDBlock))) - e.EncodeToken(idBlock.End()) - } - - if a.IDAuth != "" { - idAuth := xml.StartElement{ - Name: xml.Name{Local: "idAuth"}, - } - e.EncodeToken(idAuth) - e.EncodeToken(xml.CharData(fmt.Sprintf("%s", a.IDAuth))) - e.EncodeToken(idAuth.End()) - } - - if a.HostData != "" { - hostData := xml.StartElement{ - Name: xml.Name{Local: "hostData"}, - } - e.EncodeToken(hostData) - e.EncodeToken(xml.CharData(fmt.Sprintf("%s", a.HostData))) - e.EncodeToken(hostData.End()) - } - - e.EncodeToken(start.End()) - - return nil -} - -func (a *DomainLaunchSecuritySEVSNP) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "kernelHashes" { - a.KernelHashes = attr.Value - } else if attr.Name.Local == "authorKey" { - a.AuthorKey = attr.Value - } else if attr.Name.Local == "vcek" { - a.VCEK = attr.Value - } - } - - for { - tok, err := d.Token() - if err == io.EOF { - break - } - if err != nil { - return err - } - - switch tok := tok.(type) { - case xml.StartElement: - if tok.Name.Local == "policy" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - if err := unmarshalUint64Attr(string(data), &a.Policy, 16); err != nil { - return err - } - } - } else if tok.Name.Local == "cbitpos" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - if err := unmarshalUintAttr(string(data), &a.CBitPos, 10); err != nil { - return err - } - } - } else if tok.Name.Local == "reducedPhysBits" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - if err := unmarshalUintAttr(string(data), &a.ReducedPhysBits, 10); err != nil { - return err - } - } - } else if tok.Name.Local == "guestVisibleWorkarounds" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - a.GuestVisibleWorkarounds = string(data) - } - } else if tok.Name.Local == "idBlock" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - a.IDBlock = string(data) - } - } else if tok.Name.Local == "idAuth" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - a.IDAuth = string(data) - } - } else if tok.Name.Local == "hostData" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - a.HostData = string(data) - } - } - } - } - return nil -} - -func (a *DomainLaunchSecurityTDX) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - - e.EncodeToken(start) - - if a.Policy != nil { - policy := xml.StartElement{ - Name: xml.Name{Local: "policy"}, - } - e.EncodeToken(policy) - e.EncodeToken(xml.CharData(fmt.Sprintf("0x%08x", *a.Policy))) - e.EncodeToken(policy.End()) - } - - mrConfigId := xml.StartElement{ - Name: xml.Name{Local: "mrConfigId"}, - } - e.EncodeToken(mrConfigId) - e.EncodeToken(xml.CharData(fmt.Sprintf("%s", a.MrConfigId))) - e.EncodeToken(mrConfigId.End()) - - mrOwner := xml.StartElement{ - Name: xml.Name{Local: "mrOwner"}, - } - e.EncodeToken(mrOwner) - e.EncodeToken(xml.CharData(fmt.Sprintf("%s", a.MrOwner))) - e.EncodeToken(mrOwner.End()) - - mrOwnerConfig := xml.StartElement{ - Name: xml.Name{Local: "mrOwnerConfig"}, - } - e.EncodeToken(mrOwnerConfig) - e.EncodeToken(xml.CharData(fmt.Sprintf("%s", a.MrOwnerConfig))) - e.EncodeToken(mrOwnerConfig.End()) - - if a.QuoteGenerationService != nil { - qgs := xml.StartElement{ - Name: xml.Name{Local: "quoteGenerationService"}, - } - if a.QuoteGenerationService.Path != "" { - qgs.Attr = append(qgs.Attr, xml.Attr{ - xml.Name{Local: "path"}, a.QuoteGenerationService.Path, - }) - } - - e.EncodeToken(qgs) - e.EncodeToken(qgs.End()) - } - - e.EncodeToken(start.End()) - - return nil -} - -func (a *DomainLaunchSecurityTDX) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for { - tok, err := d.Token() - if err == io.EOF { - break - } - if err != nil { - return err - } - - switch tok := tok.(type) { - case xml.StartElement: - if tok.Name.Local == "policy" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - if err := unmarshalUintAttr(string(data), &a.Policy, 16); err != nil { - return err - } - } - } else if tok.Name.Local == "mrConfigId" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - a.MrConfigId = string(data) - } - } else if tok.Name.Local == "mrOwner" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - a.MrOwner = string(data) - } - } else if tok.Name.Local == "mrOwnerConfig" { - data, err := d.Token() - if err != nil { - return err - } - switch data := data.(type) { - case xml.CharData: - a.MrOwnerConfig = string(data) - } - } else if tok.Name.Local == "quoteGenerationService" { - a.QuoteGenerationService = &DomainLaunchSecurityTDXQGS{} - err = d.DecodeElement(&a.QuoteGenerationService, &tok) - if err != nil { - return err - } - } - } - } - return nil -} - -func (a *DomainLaunchSecurity) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - - if a.SEV != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "sev", - }) - return e.EncodeElement(a.SEV, start) - } else if a.SEVSNP != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "sev-snp", - }) - return e.EncodeElement(a.SEVSNP, start) - } else if a.S390PV != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "s390-pv", - }) - return e.EncodeElement(a.S390PV, start) - } else if a.TDX != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "tdx", - }) - return e.EncodeElement(a.TDX, start) - } else { - return nil - } - -} - -func (a *DomainLaunchSecurity) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - var typ string - for _, attr := range start.Attr { - if attr.Name.Local == "type" { - typ = attr.Value - } - } - - if typ == "" { - d.Skip() - return nil - } - - if typ == "sev" { - a.SEV = &DomainLaunchSecuritySEV{} - return d.DecodeElement(a.SEV, &start) - } else if typ == "sev-snp" { - a.SEVSNP = &DomainLaunchSecuritySEVSNP{} - return d.DecodeElement(a.SEVSNP, &start) - } else if typ == "s390-pv" { - a.S390PV = &DomainLaunchSecurityS390PV{} - return d.DecodeElement(a.S390PV, &start) - } else if typ == "tdx" { - a.TDX = &DomainLaunchSecurityTDX{} - return d.DecodeElement(a.TDX, &start) - } - - return nil -} - -type domainSysInfo DomainSysInfo - -type domainSysInfoSMBIOS struct { - DomainSysInfoSMBIOS - domainSysInfo -} - -type domainSysInfoFWCfg struct { - DomainSysInfoFWCfg - domainSysInfo -} - -func (a *DomainSysInfo) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "sysinfo" - if a.SMBIOS != nil { - smbios := domainSysInfoSMBIOS{} - smbios.domainSysInfo = domainSysInfo(*a) - smbios.DomainSysInfoSMBIOS = *a.SMBIOS - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "smbios", - }) - return e.EncodeElement(smbios, start) - } else if a.FWCfg != nil { - fwcfg := domainSysInfoFWCfg{} - fwcfg.domainSysInfo = domainSysInfo(*a) - fwcfg.DomainSysInfoFWCfg = *a.FWCfg - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "fwcfg", - }) - return e.EncodeElement(fwcfg, start) - } else { - gen := domainSysInfo(*a) - return e.EncodeElement(gen, start) - } -} - -func (a *DomainSysInfo) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing 'type' attribute on domain controller") - } - if typ == "smbios" { - var smbios domainSysInfoSMBIOS - err := d.DecodeElement(&smbios, &start) - if err != nil { - return err - } - *a = DomainSysInfo(smbios.domainSysInfo) - a.SMBIOS = &smbios.DomainSysInfoSMBIOS - return nil - } else if typ == "fwcfg" { - var fwcfg domainSysInfoFWCfg - err := d.DecodeElement(&fwcfg, &start) - if err != nil { - return err - } - *a = DomainSysInfo(fwcfg.domainSysInfo) - a.FWCfg = &fwcfg.DomainSysInfoFWCfg - return nil - } else { - var gen domainSysInfo - err := d.DecodeElement(&gen, &start) - if err != nil { - return err - } - *a = DomainSysInfo(gen) - return nil - } -} - -type domainNVRam DomainNVRam - -func (a *DomainNVRam) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "nvram" - if a.Source != nil { - if a.Source.File != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "file", - }) - } else if a.Source.Block != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "block", - }) - } else if a.Source.Dir != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "dir", - }) - } else if a.Source.Network != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "network", - }) - } else if a.Source.Volume != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "volume", - }) - } else if a.Source.NVME != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "nvme", - }) - } else if a.Source.VHostUser != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vhostuser", - }) - } else if a.Source.VHostVDPA != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vhostvdpa", - }) - } else if a.Source.Ctl != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "ctl", - }) - } - } - disk := domainNVRam(*a) - return e.EncodeElement(disk, start) -} - -func (a *DomainNVRam) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - - if ok { - a.Source = &DomainDiskSource{} - if typ == "file" { - a.Source.File = &DomainDiskSourceFile{} - } else if typ == "block" { - a.Source.Block = &DomainDiskSourceBlock{} - } else if typ == "network" { - a.Source.Network = &DomainDiskSourceNetwork{} - } else if typ == "dir" { - a.Source.Dir = &DomainDiskSourceDir{} - } else if typ == "volume" { - a.Source.Volume = &DomainDiskSourceVolume{} - } else if typ == "nvme" { - a.Source.NVME = &DomainDiskSourceNVME{} - } else if typ == "vhostuser" { - a.Source.VHostUser = &DomainDiskSourceVHostUser{} - } else if typ == "vhostvdpa" { - a.Source.VHostVDPA = &DomainDiskSourceVHostVDPA{} - } else if typ == "ctl" { - a.Source.Ctl = &DomainDiskSourceCtl{} - } - } - disk := domainNVRam(*a) - err := d.DecodeElement(&disk, &start) - if err != nil { - return err - } - if a.Source != nil { - a.NVRam = "" - } - *a = DomainNVRam(disk) - return nil -} - -type domainDeviceList DomainDeviceList - -func (a *DomainDeviceList) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - devs := domainDeviceList(*a) - if devs.IOMMU != nil { - if len(devs.IOMMUs) != 0 { - if !reflect.DeepEqual(*devs.IOMMU, devs.IOMMUs[0]) { - return fmt.Errorf("IOMMU field must match first element in IOMMUs list") - } - } else { - devs.IOMMUs = []DomainIOMMU{*devs.IOMMU} - } - } - return e.EncodeElement(devs, start) -} - -func (a *DomainDeviceList) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - devs := domainDeviceList(*a) - err := d.DecodeElement(&devs, &start) - if err != nil { - return err - } - if len(devs.IOMMUs) > 0 { - devs.IOMMU = &devs.IOMMUs[0] - } - *a = DomainDeviceList(devs) - return nil -} diff --git a/vendor/libvirt.org/go/libvirtxml/domain_backup.go b/vendor/libvirt.org/go/libvirtxml/domain_backup.go deleted file mode 100644 index c8e39f3bd8..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/domain_backup.go +++ /dev/null @@ -1,348 +0,0 @@ -/* SPDX-License-Identifier: MIT */ - -package libvirtxml - -import "encoding/xml" - -type DomainBackupPullServerTCP struct { - Name string `xml:"name,attr"` - Port uint `xml:"port,attr,omitempty"` -} - -type DomainBackupPullServerUNIX struct { - Socket string `xml:"socket,attr"` -} -type DomainBackupPullServerFD struct { - FDGroup string `xml:"fdgroup,attr"` -} - -type DomainBackupPullServer struct { - TLS string `xml:"tls,attr,omitempty"` - TCP *DomainBackupPullServerTCP `xml:"-"` - UNIX *DomainBackupPullServerUNIX `xml:"-"` - FD *DomainBackupPullServerFD `xml:"-"` -} - -type DomainBackupDiskDriver struct { - Type string `xml:"type,attr,omitempty"` -} - -type DomainBackupPushDisk struct { - Name string `xml:"name,attr"` - Backup string `xml:"backup,attr,omitempty"` - BackupMode string `xml:"backupmode,attr,omitempty"` - Incremental string `xml:"incremental,attr,omitempty"` - Driver *DomainBackupDiskDriver `xml:"driver"` - Target *DomainDiskSource `xml:"target"` -} - -type DomainBackupPushDisks struct { - Disks []DomainBackupPushDisk `xml:"disk"` -} - -type DomainBackupPullDisk struct { - Name string `xml:"name,attr"` - Backup string `xml:"backup,attr,omitempty"` - BackupMode string `xml:"backupmode,attr,omitempty"` - Incremental string `xml:"incremental,attr,omitempty"` - ExportName string `xml:"exportname,attr,omitempty"` - ExportBitmap string `xml:"exportbitmap,attr,omitempty"` - Driver *DomainBackupDiskDriver `xml:"driver"` - Scratch *DomainDiskSource `xml:"scratch"` -} - -type DomainBackupPullDisks struct { - Disks []DomainBackupPullDisk `xml:"disk"` -} - -type DomainBackupPush struct { - Disks *DomainBackupPushDisks `xml:"disks"` -} - -type DomainBackupPull struct { - Server *DomainBackupPullServer `xml:"server"` - Disks *DomainBackupPullDisks `xml:"disks"` -} - -type DomainBackup struct { - XMLName xml.Name `xml:"domainbackup"` - Incremental string `xml:"incremental,omitempty"` - Push *DomainBackupPush `xml:"-"` - Pull *DomainBackupPull `xml:"-"` -} - -type domainBackupPullServer DomainBackupPullServer - -type domainBackupPullServerTCP struct { - DomainBackupPullServerTCP - domainBackupPullServer -} - -type domainBackupPullServerUNIX struct { - DomainBackupPullServerUNIX - domainBackupPullServer -} - -type domainBackupPullServerFD struct { - DomainBackupPullServerFD - domainBackupPullServer -} - -func (a *DomainBackupPullServer) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if a.TCP != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "transport"}, "tcp", - }) - tmp := domainBackupPullServerTCP{} - tmp.domainBackupPullServer = domainBackupPullServer(*a) - tmp.DomainBackupPullServerTCP = *a.TCP - return e.EncodeElement(tmp, start) - } else if a.UNIX != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "transport"}, "unix", - }) - tmp := domainBackupPullServerUNIX{} - tmp.domainBackupPullServer = domainBackupPullServer(*a) - tmp.DomainBackupPullServerUNIX = *a.UNIX - return e.EncodeElement(tmp, start) - } else if a.FD != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "transport"}, "fd", - }) - tmp := domainBackupPullServerFD{} - tmp.domainBackupPullServer = domainBackupPullServer(*a) - tmp.DomainBackupPullServerFD = *a.FD - return e.EncodeElement(tmp, start) - } - - return nil -} - -func (a *DomainBackupPullServer) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - transport, ok := getAttr(start.Attr, "transport") - if !ok { - transport = "tcp" - } - - if transport == "tcp" { - var tmp domainBackupPullServerTCP - err := d.DecodeElement(&tmp, &start) - if err != nil { - return err - } - *a = DomainBackupPullServer(tmp.domainBackupPullServer) - a.TCP = &tmp.DomainBackupPullServerTCP - return nil - } else if transport == "unix" { - var tmp domainBackupPullServerUNIX - err := d.DecodeElement(&tmp, &start) - if err != nil { - return err - } - *a = DomainBackupPullServer(tmp.domainBackupPullServer) - a.UNIX = &tmp.DomainBackupPullServerUNIX - return nil - } else if transport == "fd" { - var tmp domainBackupPullServerFD - err := d.DecodeElement(&tmp, &start) - if err != nil { - return err - } - *a = DomainBackupPullServer(tmp.domainBackupPullServer) - a.FD = &tmp.DomainBackupPullServerFD - return nil - } - return nil -} - -type domainBackupPushDisk DomainBackupPushDisk - -func (a *DomainBackupPushDisk) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "disk" - - if a.Target != nil { - if a.Target.File != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "file", - }) - } else if a.Target.Block != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "block", - }) - } else if a.Target.Dir != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "dir", - }) - } else if a.Target.Network != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "network", - }) - } else if a.Target.Volume != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "volume", - }) - } - } - disk := domainBackupPushDisk(*a) - return e.EncodeElement(disk, start) -} - -func (a *DomainBackupPushDisk) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if ok { - a.Target = &DomainDiskSource{} - if typ == "file" { - a.Target.File = &DomainDiskSourceFile{} - } else if typ == "block" { - a.Target.Block = &DomainDiskSourceBlock{} - } else if typ == "network" { - a.Target.Network = &DomainDiskSourceNetwork{} - } else if typ == "dir" { - a.Target.Dir = &DomainDiskSourceDir{} - } else if typ == "volume" { - a.Target.Volume = &DomainDiskSourceVolume{} - } - } - disk := domainBackupPushDisk(*a) - err := d.DecodeElement(&disk, &start) - if err != nil { - return err - } - *a = DomainBackupPushDisk(disk) - return nil -} - -type domainBackupPullDisk DomainBackupPullDisk - -func (a *DomainBackupPullDisk) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "disk" - - if a.Scratch != nil { - if a.Scratch.File != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "file", - }) - } else if a.Scratch.Block != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "block", - }) - } else if a.Scratch.Dir != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "dir", - }) - } else if a.Scratch.Network != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "network", - }) - } else if a.Scratch.Volume != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "volume", - }) - } - } - - disk := domainBackupPullDisk(*a) - return e.EncodeElement(disk, start) -} - -func (a *DomainBackupPullDisk) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if ok { - a.Scratch = &DomainDiskSource{} - if typ == "file" { - a.Scratch.File = &DomainDiskSourceFile{} - } else if typ == "block" { - a.Scratch.Block = &DomainDiskSourceBlock{} - } else if typ == "network" { - a.Scratch.Network = &DomainDiskSourceNetwork{} - } else if typ == "dir" { - a.Scratch.Dir = &DomainDiskSourceDir{} - } else if typ == "volume" { - a.Scratch.Volume = &DomainDiskSourceVolume{} - } - } - - disk := domainBackupPullDisk(*a) - err := d.DecodeElement(&disk, &start) - if err != nil { - return err - } - *a = DomainBackupPullDisk(disk) - return nil -} - -type domainBackup DomainBackup - -type domainBackupPull struct { - DomainBackupPull - domainBackup -} - -type domainBackupPush struct { - DomainBackupPush - domainBackup -} - -func (a *DomainBackup) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "domainbackup" - - if a.Push != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "mode"}, "push", - }) - tmp := domainBackupPush{} - tmp.domainBackup = domainBackup(*a) - tmp.DomainBackupPush = *a.Push - return e.EncodeElement(tmp, start) - } else if a.Pull != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "mode"}, "pull", - }) - tmp := domainBackupPull{} - tmp.domainBackup = domainBackup(*a) - tmp.DomainBackupPull = *a.Pull - return e.EncodeElement(tmp, start) - } - - return nil -} - -func (a *DomainBackup) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - mode, ok := getAttr(start.Attr, "mode") - if !ok { - mode = "push" - } - - if mode == "push" { - var tmp domainBackupPush - err := d.DecodeElement(&tmp, &start) - if err != nil { - return err - } - *a = DomainBackup(tmp.domainBackup) - a.Push = &tmp.DomainBackupPush - return nil - } else if mode == "pull" { - var tmp domainBackupPull - err := d.DecodeElement(&tmp, &start) - if err != nil { - return err - } - *a = DomainBackup(tmp.domainBackup) - a.Pull = &tmp.DomainBackupPull - return nil - } - return nil -} - -func (s *DomainBackup) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *DomainBackup) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} diff --git a/vendor/libvirt.org/go/libvirtxml/domain_capabilities.go b/vendor/libvirt.org/go/libvirtxml/domain_capabilities.go deleted file mode 100644 index 3064cf4faa..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/domain_capabilities.go +++ /dev/null @@ -1,267 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2016 Red Hat, Inc. - * - */ - -package libvirtxml - -import ( - "encoding/xml" -) - -type DomainCaps struct { - XMLName xml.Name `xml:"domainCapabilities"` - Path string `xml:"path"` - Domain string `xml:"domain"` - Machine string `xml:"machine,omitempty"` - Arch string `xml:"arch"` - VCPU *DomainCapsVCPU `xml:"vcpu"` - IOThreads *DomainCapsIOThreads `xml:"iothreads"` - OS *DomainCapsOS `xml:"os"` - CPU *DomainCapsCPU `xml:"cpu"` - MemoryBacking *DomainCapsMemoryBacking `xml:"memoryBacking"` - Devices *DomainCapsDevices `xml:"devices"` - Features *DomainCapsFeatures `xml:"features"` -} - -type DomainCapsVCPU struct { - Max uint `xml:"max,attr"` -} - -type DomainCapsOS struct { - Supported string `xml:"supported,attr"` - Loader *DomainCapsOSLoader `xml:"loader"` - VarStore *DomainCapsOSVarStore `xml:"varstore"` - FirmwareFeatures *DomainCapsOSFirmwareFeatures `xml:"firmwareFeatures"` - Enums []DomainCapsEnum `xml:"enum"` -} - -type DomainCapsOSLoader struct { - Supported string `xml:"supported,attr"` - Values []string `xml:"value"` - Enums []DomainCapsEnum `xml:"enum"` -} - -type DomainCapsOSVarStore struct { - Supported string `xml:"supported,attr"` -} - -type DomainCapsOSFirmwareFeatures struct { - Supported string `xml:"supported,attr"` - Enums []DomainCapsEnum `xml:"enum"` -} - -type DomainCapsIOThreads struct { - Supported string `xml:"supported,attr"` -} - -type DomainCapsCPU struct { - Modes []DomainCapsCPUMode `xml:"mode"` -} - -type DomainCapsCPUMaxPhysAddr struct { - Mode string `xml:"mode,attr"` - Limit uint `xml:"limit,attr"` -} - -type DomainCapsCPUMode struct { - Name string `xml:"name,attr"` - Supported string `xml:"supported,attr"` - Models []DomainCapsCPUModel `xml:"model"` - Vendor string `xml:"vendor,omitempty"` - MaxPhysAddr *DomainCapsCPUMaxPhysAddr `xml:"maxphysaddr"` - Features []DomainCapsCPUFeature `xml:"feature"` - Blockers []DomainCapsCPUBlockers `xml:"blockers"` - Enums []DomainCapsEnum `xml:"enum"` -} - -type DomainCapsCPUModel struct { - Name string `xml:",chardata"` - Usable string `xml:"usable,attr,omitempty"` - Fallback string `xml:"fallback,attr,omitempty"` - Deprecated string `xml:"deprecated,attr,omitempty"` - Vendor string `xml:"vendor,attr,omitempty"` - Canonical string `xml:"canonical,attr,omitempty"` -} - -type DomainCapsCPUFeature struct { - Policy string `xml:"policy,attr,omitempty"` - Name string `xml:"name,attr"` -} - -type DomainCapsCPUBlockers struct { - Model string `xml:"model,attr"` - Features []DomainCapsCPUBlockedFeature `xml:"feature"` -} - -type DomainCapsCPUBlockedFeature struct { - Name string `xml:"name,attr"` -} - -type DomainCapsEnum struct { - Name string `xml:"name,attr"` - Values []string `xml:"value"` -} - -type DomainCapsMemoryBacking struct { - Supported string `xml:"supported,attr"` - Enums []DomainCapsEnum `xml:"enum"` -} - -type DomainCapsDevices struct { - Disk *DomainCapsDevice `xml:"disk"` - Graphics *DomainCapsDevice `xml:"graphics"` - Video *DomainCapsDevice `xml:"video"` - HostDev *DomainCapsDevice `xml:"hostdev"` - RNG *DomainCapsDevice `xml:"rng"` - FileSystem *DomainCapsDevice `xml:"filesystem"` - TPM *DomainCapsDevice `xml:"tpm"` - Redirdev *DomainCapsDevice `xml:"redirdev"` - Channel *DomainCapsDevice `xml:"channel"` - Crypto *DomainCapsDevice `xml:"crypto"` - Interface *DomainCapsDevice `xml:"interface"` - Panic *DomainCapsDevice `xml:"panic"` - Console *DomainCapsDevice `xml:"console"` -} - -type DomainCapsDevice struct { - Supported string `xml:"supported,attr"` - Enums []DomainCapsEnum `xml:"enum"` -} - -type DomainCapsFeatures struct { - GIC *DomainCapsFeatureGIC `xml:"gic"` - VMCoreInfo *DomainCapsFeatureVMCoreInfo `xml:"vmcoreinfo"` - GenID *DomainCapsFeatureGenID `xml:"genid"` - BackingStoreInput *DomainCapsFeatureBackingStoreInput `xml:"backingStoreInput"` - Backup *DomainCapsFeatureBackup `xml:"backup"` - AsyncTeardown *DomainCapsFeatureAsyncTeardown `xml:"async-teardown"` - S390PV *DomainCapsFeatureS390PV `xml:"s390-pv"` - PS2 *DomainCapsFeaturePS2 `xml:"ps2"` - TDX *DomainCapsFeatureTDX `xml:"tdx"` - SEV *DomainCapsFeatureSEV `xml:"sev"` - SGX *DomainCapsFeatureSGX `xml:"sgx"` - HyperV *DomainCapsFeatureHyperV `xml:"hyperv"` - LaunchSecurity *DomainCapsFeatureLaunchSecurity `xml:"launchSecurity"` -} - -type DomainCapsFeatureGIC struct { - Supported string `xml:"supported,attr"` - Enums []DomainCapsEnum `xml:"enum"` -} - -type DomainCapsFeatureVMCoreInfo struct { - Supported string `xml:"supported,attr"` -} - -type DomainCapsFeatureGenID struct { - Supported string `xml:"supported,attr"` -} - -type DomainCapsFeatureBackingStoreInput struct { - Supported string `xml:"supported,attr"` -} - -type DomainCapsFeatureBackup struct { - Supported string `xml:"supported,attr"` -} - -type DomainCapsFeatureAsyncTeardown struct { - Supported string `xml:"supported,attr"` -} - -type DomainCapsFeatureS390PV struct { - Supported string `xml:"supported,attr"` -} - -type DomainCapsFeaturePS2 struct { - Supported string `xml:"supported,attr"` -} - -type DomainCapsFeatureTDX struct { - Supported string `xml:"supported,attr"` -} - -type DomainCapsFeatureSEV struct { - Supported string `xml:"supported,attr"` - CBitPos uint `xml:"cbitpos,omitempty"` - ReducedPhysBits uint `xml:"reducedPhysBits,omitempty"` - MaxGuests uint `xml:"maxGuests,omitempty"` - MaxESGuests uint `xml:"maxESGuests,omitempty"` - Cpu0ID string `xml:"cpu0Id,omitempty"` -} - -type DomainCapsFeatureSGX struct { - Supported string `xml:"supported,attr"` - FLC *DomainCapsFeatureSGXFeature `xml:"flc"` - SGX1 *DomainCapsFeatureSGXFeature `xml:"sgx1"` - SGX2 *DomainCapsFeatureSGXFeature `xml:"sgx2"` - SectionSize *DomainCapsFeatureSGXSectionSize `xml:"section_size"` - Sections *[]DomainCapsFeatureSGXSection `xml:"sections>section"` -} - -type DomainCapsFeatureSGXFeature struct { - Supported string `xml:",chardata"` -} - -type DomainCapsFeatureSGXSectionSize struct { - Value uint `xml:",chardata"` - Unit string `xml:"unit,attr,omitempty"` -} - -type DomainCapsFeatureSGXSection struct { - Node uint `xml:"node,attr"` - Size uint `xml:"size,attr"` - Unit string `xml:"unit,attr"` -} - -type DomainCapsFeatureHyperVDefaults struct { - Spinlocks uint `xml:"spinlocks,omitempty"` - STimerDirect string `xml:"stimer_direct,omitempty"` - TLBFlushDirect string `xml:"tlbflush_direct,omitempty"` - TLBFlushExtended string `xml:"tlbflush_extended,omitempty"` - VendorID string `xml:"vendor_id,omitempty"` -} - -type DomainCapsFeatureHyperV struct { - Supported string `xml:"supported,attr"` - Enums []DomainCapsEnum `xml:"enum"` - Defaults *DomainCapsFeatureHyperVDefaults `xml:"defaults"` -} - -type DomainCapsFeatureLaunchSecurity struct { - Supported string `xml:"supported,attr"` - Enums []DomainCapsEnum `xml:"enum"` -} - -func (c *DomainCaps) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), c) -} - -func (c *DomainCaps) Marshal() (string, error) { - doc, err := xml.MarshalIndent(c, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} diff --git a/vendor/libvirt.org/go/libvirtxml/domain_checkpoint.go b/vendor/libvirt.org/go/libvirtxml/domain_checkpoint.go deleted file mode 100644 index 9d93579212..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/domain_checkpoint.go +++ /dev/null @@ -1,43 +0,0 @@ -/* SPDX-License-Identifier: MIT */ - -package libvirtxml - -import "encoding/xml" - -type DomainCheckpointParent struct { - Name string `xml:"name"` -} - -type DomainCheckpointDisk struct { - Name string `xml:"name,attr"` - Checkpoint string `xml:"checkpoint,attr,omitempty"` - Bitmap string `xml:"bitmap,attr,omitempty"` - Size uint64 `xml:"size,attr,omitempty"` -} - -type DomainCheckpointDisks struct { - Disks []DomainCheckpointDisk `xml:"disk"` -} - -type DomainCheckpoint struct { - XMLName xml.Name `xml:"domaincheckpoint"` - Name string `xml:"name,omitempty"` - Description string `xml:"description,omitempty"` - State string `xml:"state,omitempty"` - CreationTime string `xml:"creationTime,omitempty"` - Parent *DomainCheckpointParent `xml:"parent"` - Disks *DomainCheckpointDisks `xml:"disks"` - Domain *Domain `xml:"domain"` -} - -func (s *DomainCheckpoint) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *DomainCheckpoint) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} diff --git a/vendor/libvirt.org/go/libvirtxml/domain_snapshot.go b/vendor/libvirt.org/go/libvirtxml/domain_snapshot.go deleted file mode 100644 index 776ce459d8..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/domain_snapshot.go +++ /dev/null @@ -1,141 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2017 Red Hat, Inc. - * - */ - -package libvirtxml - -import "encoding/xml" - -type DomainSnapshotDisk struct { - Name string `xml:"name,attr"` - Snapshot string `xml:"snapshot,attr,omitempty"` - Driver *DomainDiskDriver `xml:"driver"` - Source *DomainDiskSource `xml:"source"` -} - -type DomainSnapshotDisks struct { - Disks []DomainSnapshotDisk `xml:"disk"` -} - -type DomainSnapshotMemory struct { - Snapshot string `xml:"snapshot,attr"` - File string `xml:"file,attr,omitempty"` -} - -type DomainSnapshotParent struct { - Name string `xml:"name"` -} - -type DomainSnapshotInactiveDomain struct { - XMLName xml.Name `xml:"inactiveDomain"` - Domain -} - -type DomainSnapshotCookie struct { - XML string `xml:",innerxml"` -} - -type DomainSnapshot struct { - XMLName xml.Name `xml:"domainsnapshot"` - Name string `xml:"name,omitempty"` - Description string `xml:"description,omitempty"` - State string `xml:"state,omitempty"` - CreationTime string `xml:"creationTime,omitempty"` - Parent *DomainSnapshotParent `xml:"parent"` - Memory *DomainSnapshotMemory `xml:"memory"` - Disks *DomainSnapshotDisks `xml:"disks"` - Domain *Domain `xml:"domain"` - InactiveDomain *DomainSnapshotInactiveDomain `xml:"inactiveDomain"` - Active *uint `xml:"active"` - Cookie *DomainSnapshotCookie `xml:"cookie"` -} - -type domainSnapshotDisk DomainSnapshotDisk - -func (a *DomainSnapshotDisk) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "disk" - if a.Source != nil { - if a.Source.File != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "file", - }) - } else if a.Source.Block != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "block", - }) - } else if a.Source.Dir != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "dir", - }) - } else if a.Source.Network != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "network", - }) - } else if a.Source.Volume != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "volume", - }) - } - } - disk := domainSnapshotDisk(*a) - return e.EncodeElement(disk, start) -} - -func (a *DomainSnapshotDisk) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - typ = "file" - } - a.Source = &DomainDiskSource{} - if typ == "file" { - a.Source.File = &DomainDiskSourceFile{} - } else if typ == "block" { - a.Source.Block = &DomainDiskSourceBlock{} - } else if typ == "network" { - a.Source.Network = &DomainDiskSourceNetwork{} - } else if typ == "dir" { - a.Source.Dir = &DomainDiskSourceDir{} - } else if typ == "volume" { - a.Source.Volume = &DomainDiskSourceVolume{} - } - disk := domainSnapshotDisk(*a) - err := d.DecodeElement(&disk, &start) - if err != nil { - return err - } - *a = DomainSnapshotDisk(disk) - return nil -} - -func (s *DomainSnapshot) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *DomainSnapshot) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} diff --git a/vendor/libvirt.org/go/libvirtxml/interface.go b/vendor/libvirt.org/go/libvirtxml/interface.go deleted file mode 100644 index ba9da20851..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/interface.go +++ /dev/null @@ -1,150 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2017 Lian Duan - * - */ - -package libvirtxml - -import ( - "encoding/xml" -) - -type Interface struct { - XMLName xml.Name `xml:"interface"` - Name string `xml:"name,attr,omitempty"` - Start *InterfaceStart `xml:"start"` - MTU *InterfaceMTU `xml:"mtu"` - Protocol []InterfaceProtocol `xml:"protocol"` - Link *InterfaceLink `xml:"link"` - MAC *InterfaceMAC `xml:"mac"` - Bond *InterfaceBond `xml:"bond"` - Bridge *InterfaceBridge `xml:"bridge"` - VLAN *InterfaceVLAN `xml:"vlan"` -} - -type InterfaceStart struct { - Mode string `xml:"mode,attr"` -} - -type InterfaceMTU struct { - Size uint `xml:"size,attr"` -} - -type InterfaceProtocol struct { - Family string `xml:"family,attr,omitempty"` - AutoConf *InterfaceAutoConf `xml:"autoconf"` - DHCP *InterfaceDHCP `xml:"dhcp"` - IPs []InterfaceIP `xml:"ip"` - Route []InterfaceRoute `xml:"route"` -} - -type InterfaceAutoConf struct { -} - -type InterfaceDHCP struct { - PeerDNS string `xml:"peerdns,attr,omitempty"` -} - -type InterfaceIP struct { - Address string `xml:"address,attr"` - Prefix uint `xml:"prefix,attr,omitempty"` -} - -type InterfaceRoute struct { - Gateway string `xml:"gateway,attr"` -} - -type InterfaceLink struct { - Speed uint `xml:"speed,attr,omitempty"` - State string `xml:"state,attr,omitempty"` -} - -type InterfaceMAC struct { - Address string `xml:"address,attr"` -} - -type InterfaceBond struct { - Mode string `xml:"mode,attr,omitempty"` - ARPMon *InterfaceBondARPMon `xml:"arpmon"` - MIIMon *InterfaceBondMIIMon `xml:"miimon"` - Interfaces []Interface `xml:"interface"` -} - -type InterfaceBondARPMon struct { - Interval uint `xml:"interval,attr,omitempty"` - Target string `xml:"target,attr,omitempty"` - Validate string `xml:"validate,attr,omitempty"` -} - -type InterfaceBondMIIMon struct { - Freq uint `xml:"freq,attr,omitempty"` - UpDelay uint `xml:"updelay,attr,omitempty"` - Carrier string `xml:"carrier,attr,omitempty"` -} - -type InterfaceBridge struct { - STP string `xml:"stp,attr,omitempty"` - Delay *float64 `xml:"delay,attr"` - Interfaces []Interface `xml:"interface"` -} - -type InterfaceVLAN struct { - Tag *uint `xml:"tag,attr"` - Interface *Interface `xml:"interface"` -} - -type interfaceDup Interface - -func (s *Interface) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "interface" - - typ := "ethernet" - if s.Bond != nil { - typ = "bond" - } else if s.Bridge != nil { - typ = "bridge" - } else if s.VLAN != nil { - typ = "vlan" - } - - start.Attr = append(start.Attr, xml.Attr{ - Name: xml.Name{Local: "type"}, - Value: typ, - }) - - i := interfaceDup(*s) - - return e.EncodeElement(i, start) -} - -func (s *Interface) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *Interface) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} diff --git a/vendor/libvirt.org/go/libvirtxml/network.go b/vendor/libvirt.org/go/libvirtxml/network.go deleted file mode 100644 index b456e2ec44..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/network.go +++ /dev/null @@ -1,566 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2017 Lian Duan - * - */ - -package libvirtxml - -import ( - "encoding/xml" -) - -type NetworkBridge struct { - Name string `xml:"name,attr,omitempty"` - STP string `xml:"stp,attr,omitempty"` - Delay string `xml:"delay,attr,omitempty"` - MACTableManager string `xml:"macTableManager,attr,omitempty"` - Zone string `xml:"zone,attr,omitempty"` -} - -type NetworkVirtualPort struct { - Params *NetworkVirtualPortParams `xml:"parameters"` -} - -type NetworkVirtualPortParams struct { - Any *NetworkVirtualPortParamsAny `xml:"-"` - VEPA8021QBG *NetworkVirtualPortParamsVEPA8021QBG `xml:"-"` - VNTag8011QBH *NetworkVirtualPortParamsVNTag8021QBH `xml:"-"` - OpenVSwitch *NetworkVirtualPortParamsOpenVSwitch `xml:"-"` - MidoNet *NetworkVirtualPortParamsMidoNet `xml:"-"` -} - -type NetworkVirtualPortParamsAny struct { - ManagerID *uint `xml:"managerid,attr"` - TypeID *uint `xml:"typeid,attr"` - TypeIDVersion *uint `xml:"typeidversion,attr"` - InstanceID string `xml:"instanceid,attr,omitempty"` - ProfileID string `xml:"profileid,attr,omitempty"` - InterfaceID string `xml:"interfaceid,attr,omitempty"` -} - -type NetworkVirtualPortParamsVEPA8021QBG struct { - ManagerID *uint `xml:"managerid,attr"` - TypeID *uint `xml:"typeid,attr"` - TypeIDVersion *uint `xml:"typeidversion,attr"` - InstanceID string `xml:"instanceid,attr,omitempty"` -} - -type NetworkVirtualPortParamsVNTag8021QBH struct { - ProfileID string `xml:"profileid,attr,omitempty"` -} - -type NetworkVirtualPortParamsOpenVSwitch struct { - InterfaceID string `xml:"interfaceid,attr,omitempty"` - ProfileID string `xml:"profileid,attr,omitempty"` -} - -type NetworkVirtualPortParamsMidoNet struct { - InterfaceID string `xml:"interfaceid,attr,omitempty"` -} - -type NetworkDomain struct { - Name string `xml:"name,attr,omitempty"` - LocalOnly string `xml:"localOnly,attr,omitempty"` - Register string `xml:"register,attr,omitempty"` -} - -type NetworkForwardNATAddress struct { - Start string `xml:"start,attr"` - End string `xml:"end,attr"` -} - -type NetworkForwardNATPort struct { - Start uint `xml:"start,attr"` - End uint `xml:"end,attr"` -} - -type NetworkForwardNAT struct { - IPv6 string `xml:"ipv6,attr,omitempty"` - Addresses []NetworkForwardNATAddress `xml:"address"` - Ports []NetworkForwardNATPort `xml:"port"` -} - -type NetworkForward struct { - Mode string `xml:"mode,attr,omitempty"` - Dev string `xml:"dev,attr,omitempty"` - Managed string `xml:"managed,attr,omitempty"` - Driver *NetworkForwardDriver `xml:"driver"` - PFs []NetworkForwardPF `xml:"pf"` - NAT *NetworkForwardNAT `xml:"nat"` - Interfaces []NetworkForwardInterface `xml:"interface"` - Addresses []NetworkForwardAddress `xml:"address"` -} - -type NetworkForwardDriver struct { - Name string `xml:"name,attr,omitempty"` - Model string `xml:"model,attr,omitempty"` -} - -type NetworkForwardPF struct { - Dev string `xml:"dev,attr"` -} - -type NetworkForwardAddress struct { - PCI *NetworkForwardAddressPCI `xml:"-"` -} - -type NetworkForwardAddressPCI struct { - Domain *uint `xml:"domain,attr"` - Bus *uint `xml:"bus,attr"` - Slot *uint `xml:"slot,attr"` - Function *uint `xml:"function,attr"` -} - -type NetworkForwardInterface struct { - XMLName xml.Name `xml:"interface"` - Dev string `xml:"dev,attr,omitempty"` -} - -type NetworkMAC struct { - Address string `xml:"address,attr,omitempty"` -} - -type NetworkDHCPRange struct { - XMLName xml.Name `xml:"range"` - Start string `xml:"start,attr,omitempty"` - End string `xml:"end,attr,omitempty"` - Lease *NetworkDHCPLease `xml:"lease"` -} - -type NetworkDHCPLease struct { - Expiry uint `xml:"expiry,attr"` - Unit string `xml:"unit,attr,omitempty"` -} - -type NetworkDHCPHost struct { - XMLName xml.Name `xml:"host"` - ID string `xml:"id,attr,omitempty"` - MAC string `xml:"mac,attr,omitempty"` - Name string `xml:"name,attr,omitempty"` - IP string `xml:"ip,attr,omitempty"` - Lease *NetworkDHCPLease `xml:"lease"` -} - -type NetworkBootp struct { - File string `xml:"file,attr,omitempty"` - Server string `xml:"server,attr,omitempty"` -} - -type NetworkDHCP struct { - Ranges []NetworkDHCPRange `xml:"range"` - Hosts []NetworkDHCPHost `xml:"host"` - Bootp []NetworkBootp `xml:"bootp"` -} - -type NetworkIP struct { - Address string `xml:"address,attr,omitempty"` - Family string `xml:"family,attr,omitempty"` - Netmask string `xml:"netmask,attr,omitempty"` - Prefix uint `xml:"prefix,attr,omitempty"` - LocalPtr string `xml:"localPtr,attr,omitempty"` - DHCP *NetworkDHCP `xml:"dhcp"` - TFTP *NetworkTFTP `xml:"tftp"` -} - -type NetworkTFTP struct { - Root string `xml:"root,attr,omitempty"` -} - -type NetworkRoute struct { - Family string `xml:"family,attr,omitempty"` - Address string `xml:"address,attr,omitempty"` - Netmask string `xml:"netmask,attr,omitempty"` - Prefix uint `xml:"prefix,attr,omitempty"` - Gateway string `xml:"gateway,attr,omitempty"` - Metric string `xml:"metric,attr,omitempty"` -} - -type NetworkDNSForwarder struct { - Domain string `xml:"domain,attr,omitempty"` - Addr string `xml:"addr,attr,omitempty"` - Port uint `xml:"port,attr,omitempty"` -} - -type NetworkDNSTXT struct { - XMLName xml.Name `xml:"txt"` - Name string `xml:"name,attr"` - Value string `xml:"value,attr"` -} - -type NetworkDNSHostHostname struct { - Hostname string `xml:",chardata"` -} - -type NetworkDNSHost struct { - XMLName xml.Name `xml:"host"` - IP string `xml:"ip,attr"` - Hostnames []NetworkDNSHostHostname `xml:"hostname"` -} - -type NetworkDNSSRV struct { - XMLName xml.Name `xml:"srv"` - Service string `xml:"service,attr,omitempty"` - Protocol string `xml:"protocol,attr,omitempty"` - Target string `xml:"target,attr,omitempty"` - Port uint `xml:"port,attr,omitempty"` - Priority uint `xml:"priority,attr,omitempty"` - Weight uint `xml:"weight,attr,omitempty"` - Domain string `xml:"domain,attr,omitempty"` -} - -type NetworkDNS struct { - Enable string `xml:"enable,attr,omitempty"` - ForwardPlainNames string `xml:"forwardPlainNames,attr,omitempty"` - Forwarders []NetworkDNSForwarder `xml:"forwarder"` - TXTs []NetworkDNSTXT `xml:"txt"` - Host []NetworkDNSHost `xml:"host"` - SRVs []NetworkDNSSRV `xml:"srv"` -} - -type NetworkMetadata struct { - XML string `xml:",innerxml"` -} - -type NetworkMTU struct { - Size uint `xml:"size,attr"` -} - -type Network struct { - XMLName xml.Name `xml:"network"` - IPv6 string `xml:"ipv6,attr,omitempty"` - TrustGuestRxFilters string `xml:"trustGuestRxFilters,attr,omitempty"` - Name string `xml:"name,omitempty"` - UUID string `xml:"uuid,omitempty"` - Metadata *NetworkMetadata `xml:"metadata"` - Forward *NetworkForward `xml:"forward"` - Bridge *NetworkBridge `xml:"bridge"` - MTU *NetworkMTU `xml:"mtu"` - MAC *NetworkMAC `xml:"mac"` - Domain *NetworkDomain `xml:"domain"` - DNS *NetworkDNS `xml:"dns"` - VLAN *NetworkVLAN `xml:"vlan"` - Bandwidth *NetworkBandwidth `xml:"bandwidth"` - PortOptions *NetworkPortOptions `xml:"port"` - IPs []NetworkIP `xml:"ip"` - Routes []NetworkRoute `xml:"route"` - VirtualPort *NetworkVirtualPort `xml:"virtualport"` - PortGroups []NetworkPortGroup `xml:"portgroup"` - - DnsmasqOptions *NetworkDnsmasqOptions -} - -type NetworkPortOptions struct { - Isolated string `xml:"isolated,attr,omitempty"` -} - -type NetworkPortGroup struct { - XMLName xml.Name `xml:"portgroup"` - Name string `xml:"name,attr,omitempty"` - Default string `xml:"default,attr,omitempty"` - TrustGuestRxFilters string `xml:"trustGuestRxFilters,attr,omitempty"` - VLAN *NetworkVLAN `xml:"vlan"` - VirtualPort *NetworkVirtualPort `xml:"virtualport"` -} - -type NetworkVLAN struct { - Trunk string `xml:"trunk,attr,omitempty"` - Tags []NetworkVLANTag `xml:"tag"` -} - -type NetworkVLANTag struct { - ID uint `xml:"id,attr"` - NativeMode string `xml:"nativeMode,attr,omitempty"` -} - -type NetworkBandwidthParams struct { - Average *uint `xml:"average,attr"` - Peak *uint `xml:"peak,attr"` - Burst *uint `xml:"burst,attr"` - Floor *uint `xml:"floor,attr"` -} - -type NetworkBandwidth struct { - ClassID uint `xml:"classID,attr,omitempty"` - Inbound *NetworkBandwidthParams `xml:"inbound"` - Outbound *NetworkBandwidthParams `xml:"outbound"` -} - -type NetworkDnsmasqOptions struct { - XMLName xml.Name `xml:"http://libvirt.org/schemas/network/dnsmasq/1.0 options"` - Option []NetworkDnsmasqOption `xml:"option"` -} - -type NetworkDnsmasqOption struct { - Value string `xml:"value,attr"` -} - -func (a *NetworkVirtualPortParams) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "parameters" - if a.Any != nil { - return e.EncodeElement(a.Any, start) - } else if a.VEPA8021QBG != nil { - return e.EncodeElement(a.VEPA8021QBG, start) - } else if a.VNTag8011QBH != nil { - return e.EncodeElement(a.VNTag8011QBH, start) - } else if a.OpenVSwitch != nil { - return e.EncodeElement(a.OpenVSwitch, start) - } else if a.MidoNet != nil { - return e.EncodeElement(a.MidoNet, start) - } - return nil -} - -func (a *NetworkVirtualPortParams) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - if a.Any != nil { - return d.DecodeElement(a.Any, &start) - } else if a.VEPA8021QBG != nil { - return d.DecodeElement(a.VEPA8021QBG, &start) - } else if a.VNTag8011QBH != nil { - return d.DecodeElement(a.VNTag8011QBH, &start) - } else if a.OpenVSwitch != nil { - return d.DecodeElement(a.OpenVSwitch, &start) - } else if a.MidoNet != nil { - return d.DecodeElement(a.MidoNet, &start) - } - return nil -} - -type networkVirtualPort NetworkVirtualPort - -func (a *NetworkVirtualPort) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "virtualport" - if a.Params != nil { - if a.Params.Any != nil { - /* no type attr wanted */ - } else if a.Params.VEPA8021QBG != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "802.1Qbg", - }) - } else if a.Params.VNTag8011QBH != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "802.1Qbh", - }) - } else if a.Params.OpenVSwitch != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "openvswitch", - }) - } else if a.Params.MidoNet != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "midonet", - }) - } - } - vp := networkVirtualPort(*a) - return e.EncodeElement(&vp, start) -} - -func (a *NetworkVirtualPort) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - a.Params = &NetworkVirtualPortParams{} - if !ok { - var any NetworkVirtualPortParamsAny - a.Params.Any = &any - } else if typ == "802.1Qbg" { - var vepa NetworkVirtualPortParamsVEPA8021QBG - a.Params.VEPA8021QBG = &vepa - } else if typ == "802.1Qbh" { - var vntag NetworkVirtualPortParamsVNTag8021QBH - a.Params.VNTag8011QBH = &vntag - } else if typ == "openvswitch" { - var ovs NetworkVirtualPortParamsOpenVSwitch - a.Params.OpenVSwitch = &ovs - } else if typ == "midonet" { - var mido NetworkVirtualPortParamsMidoNet - a.Params.MidoNet = &mido - } - - vp := networkVirtualPort(*a) - err := d.DecodeElement(&vp, &start) - if err != nil { - return err - } - *a = NetworkVirtualPort(vp) - return nil -} - -func (a *NetworkForwardAddressPCI) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "domain", a.Domain, "0x%04x") - marshalUintAttr(&start, "bus", a.Bus, "0x%02x") - marshalUintAttr(&start, "slot", a.Slot, "0x%02x") - marshalUintAttr(&start, "function", a.Function, "0x%x") - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *NetworkForwardAddressPCI) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "domain" { - if err := unmarshalUintAttr(attr.Value, &a.Domain, 0); err != nil { - return err - } - } else if attr.Name.Local == "bus" { - if err := unmarshalUintAttr(attr.Value, &a.Bus, 0); err != nil { - return err - } - } else if attr.Name.Local == "slot" { - if err := unmarshalUintAttr(attr.Value, &a.Slot, 0); err != nil { - return err - } - } else if attr.Name.Local == "function" { - if err := unmarshalUintAttr(attr.Value, &a.Function, 0); err != nil { - return err - } - } - } - d.Skip() - return nil -} - -func (a *NetworkForwardAddress) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if a.PCI != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "pci", - }) - return e.EncodeElement(a.PCI, start) - } else { - return nil - } -} - -func (a *NetworkForwardAddress) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - var typ string - for _, attr := range start.Attr { - if attr.Name.Local == "type" { - typ = attr.Value - break - } - } - if typ == "" { - d.Skip() - return nil - } - - if typ == "pci" { - a.PCI = &NetworkForwardAddressPCI{} - return d.DecodeElement(a.PCI, &start) - } - - return nil -} - -func (s *NetworkDHCPHost) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *NetworkDHCPHost) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (s *NetworkDNSHost) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *NetworkDNSHost) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (s *NetworkPortGroup) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *NetworkPortGroup) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (s *NetworkDNSTXT) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *NetworkDNSTXT) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (s *NetworkDNSSRV) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *NetworkDNSSRV) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (s *NetworkDHCPRange) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *NetworkDHCPRange) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (s *NetworkForwardInterface) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *NetworkForwardInterface) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} - -func (s *Network) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *Network) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} diff --git a/vendor/libvirt.org/go/libvirtxml/network_port.go b/vendor/libvirt.org/go/libvirtxml/network_port.go deleted file mode 100644 index 286270a2a6..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/network_port.go +++ /dev/null @@ -1,216 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2019 Red Hat, Inc. - * - */ - -package libvirtxml - -import ( - "encoding/xml" - "fmt" -) - -type NetworkPort struct { - XMLName xml.Name `xml:"networkport"` - UUID string `xml:"uuid,omitempty"` - Owner *NetworkPortOwner `xml:"owner",` - MAC *NetworkPortMAC `xml:"mac"` - Group string `xml:"group,omitempty"` - Bandwidth *NetworkBandwidth `xml:"bandwidth"` - VLAN *NetworkPortVLAN `xml:"vlan"` - PortOptions *NetworkPortPortOptions `xml:"port"` - VirtualPort *NetworkVirtualPort `xml:"virtualport"` - RXFilters *NetworkPortRXFilters `xml:"rxfilters"` - Plug *NetworkPortPlug `xml:"plug"` -} - -type NetworkPortPortOptions struct { - Isolated string `xml:"isolated,attr,omitempty"` -} - -type NetworkPortVLAN struct { - Trunk string `xml:"trunk,attr,omitempty"` - Tags []NetworkPortVLANTag `xml:"tag"` -} - -type NetworkPortVLANTag struct { - ID uint `xml:"id,attr"` - NativeMode string `xml:"nativeMode,attr,omitempty"` -} - -type NetworkPortOwner struct { - UUID string `xml:"uuid,omitempty"` - Name string `xml:"name,omitempty"` -} - -type NetworkPortMAC struct { - Address string `xml:"address,attr"` -} - -type NetworkPortRXFilters struct { - TrustGuest string `xml:"trustGuest,attr"` -} - -type NetworkPortPlug struct { - Bridge *NetworkPortPlugBridge `xml:"-"` - Network *NetworkPortPlugNetwork `xml:"-"` - Direct *NetworkPortPlugDirect `xml:"-"` - HostDevPCI *NetworkPortPlugHostDevPCI `xml:"-"` -} - -type NetworkPortPlugBridge struct { - Bridge string `xml:"bridge,attr"` - MacTableManager string `xml:"macTableManager,attr,omitempty"` -} - -type NetworkPortPlugNetwork struct { - Bridge string `xml:"bridge,attr"` - MacTableManager string `xml:"macTableManager,attr,omitempty"` -} - -type NetworkPortPlugDirect struct { - Dev string `xml:"dev,attr"` - Mode string `xml:"mode,attr"` -} - -type NetworkPortPlugHostDevPCI struct { - Managed string `xml:"managed,attr,omitempty"` - Driver *NetworkPortPlugHostDevPCIDriver `xml:"driver"` - Address *NetworkPortPlugHostDevPCIAddress `xml:"address"` -} - -type NetworkPortPlugHostDevPCIDriver struct { - Name string `xml:"name,attr"` -} - -type NetworkPortPlugHostDevPCIAddress struct { - Domain *uint `xml:"domain,attr"` - Bus *uint `xml:"bus,attr"` - Slot *uint `xml:"slot,attr"` - Function *uint `xml:"function,attr"` -} - -func (a *NetworkPortPlugHostDevPCIAddress) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "domain", a.Domain, "0x%04x") - marshalUintAttr(&start, "bus", a.Bus, "0x%02x") - marshalUintAttr(&start, "slot", a.Slot, "0x%02x") - marshalUintAttr(&start, "function", a.Function, "0x%x") - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *NetworkPortPlugHostDevPCIAddress) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "domain" { - if err := unmarshalUintAttr(attr.Value, &a.Domain, 0); err != nil { - return err - } - } else if attr.Name.Local == "bus" { - if err := unmarshalUintAttr(attr.Value, &a.Bus, 0); err != nil { - return err - } - } else if attr.Name.Local == "slot" { - if err := unmarshalUintAttr(attr.Value, &a.Slot, 0); err != nil { - return err - } - } else if attr.Name.Local == "function" { - if err := unmarshalUintAttr(attr.Value, &a.Function, 0); err != nil { - return err - } - } - } - d.Skip() - return nil -} - -func (p *NetworkPortPlug) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "plug" - if p.Bridge != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "bridge", - }) - return e.EncodeElement(p.Bridge, start) - } else if p.Network != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "network", - }) - return e.EncodeElement(p.Network, start) - } else if p.Direct != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "direct", - }) - return e.EncodeElement(p.Direct, start) - } else if p.HostDevPCI != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "hostdev-pci", - }) - return e.EncodeElement(p.HostDevPCI, start) - } - return nil -} - -func (p *NetworkPortPlug) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing type attribute on plug") - } else if typ == "bridge" { - var pb NetworkPortPlugBridge - if err := d.DecodeElement(&pb, &start); err != nil { - return err - } - p.Bridge = &pb - } else if typ == "network" { - var pn NetworkPortPlugNetwork - if err := d.DecodeElement(&pn, &start); err != nil { - return err - } - p.Network = &pn - } else if typ == "direct" { - var pd NetworkPortPlugDirect - if err := d.DecodeElement(&pd, &start); err != nil { - return err - } - p.Direct = &pd - } else if typ == "hostdev-pci" { - var ph NetworkPortPlugHostDevPCI - if err := d.DecodeElement(&ph, &start); err != nil { - return err - } - p.HostDevPCI = &ph - } - d.Skip() - return nil -} - -func (s *NetworkPort) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *NetworkPort) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} diff --git a/vendor/libvirt.org/go/libvirtxml/node_device.go b/vendor/libvirt.org/go/libvirtxml/node_device.go deleted file mode 100644 index 41073fb9a9..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/node_device.go +++ /dev/null @@ -1,1462 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2017 Red Hat, Inc. - * - */ - -package libvirtxml - -import ( - "encoding/xml" - "fmt" - "io" - "strconv" - "strings" -) - -type NodeDevice struct { - XMLName xml.Name `xml:"device"` - Name string `xml:"name"` - Path string `xml:"path,omitempty"` - DevNodes []NodeDeviceDevNode `xml:"devnode"` - Parent string `xml:"parent,omitempty"` - Driver *NodeDeviceDriver `xml:"driver"` - Capability NodeDeviceCapability `xml:"capability"` -} - -type NodeDeviceDevNode struct { - Type string `xml:"type,attr,omitempty"` - Path string `xml:",chardata"` -} - -type NodeDeviceDriver struct { - Name string `xml:"name"` -} - -type NodeDeviceCapability struct { - System *NodeDeviceSystemCapability - PCI *NodeDevicePCICapability - USB *NodeDeviceUSBCapability - USBDevice *NodeDeviceUSBDeviceCapability - Net *NodeDeviceNetCapability - SCSIHost *NodeDeviceSCSIHostCapability - SCSITarget *NodeDeviceSCSITargetCapability - SCSI *NodeDeviceSCSICapability - Storage *NodeDeviceStorageCapability - DRM *NodeDeviceDRMCapability - CCW *NodeDeviceCCWCapability - MDev *NodeDeviceMDevCapability - CSS *NodeDeviceCSSCapability - APQueue *NodeDeviceAPQueueCapability - APCard *NodeDeviceAPCardCapability - APMatrix *NodeDeviceAPMatrixCapability - CCWGroup *NodeDeviceCCWGroupCapability -} - -type NodeDeviceIDName struct { - ID string `xml:"id,attr"` - Name string `xml:",chardata"` -} - -type NodeDevicePCIExpress struct { - Links []NodeDevicePCIExpressLink `xml:"link"` -} - -type NodeDevicePCIExpressLink struct { - Validity string `xml:"validity,attr,omitempty"` - Speed float64 `xml:"speed,attr,omitempty"` - Port *uint `xml:"port,attr"` - Width *uint `xml:"width,attr"` -} - -type NodeDeviceIOMMUGroup struct { - Number int `xml:"number,attr"` - Address []NodeDevicePCIAddress `xml:"address"` -} - -type NodeDeviceNUMA struct { - Node int `xml:"node,attr"` -} - -type NodeDevicePCICapability struct { - Class string `xml:"class,omitempty"` - Domain *uint `xml:"domain"` - Bus *uint `xml:"bus"` - Slot *uint `xml:"slot"` - Function *uint `xml:"function"` - Product NodeDeviceIDName `xml:"product,omitempty"` - Vendor NodeDeviceIDName `xml:"vendor,omitempty"` - IOMMUGroup *NodeDeviceIOMMUGroup `xml:"iommuGroup"` - NUMA *NodeDeviceNUMA `xml:"numa"` - PCIExpress *NodeDevicePCIExpress `xml:"pci-express"` - Capabilities []NodeDevicePCISubCapability `xml:"capability"` -} - -type NodeDevicePCIAddress struct { - Domain *uint `xml:"domain,attr"` - Bus *uint `xml:"bus,attr"` - Slot *uint `xml:"slot,attr"` - Function *uint `xml:"function,attr"` -} - -type NodeDevicePCISubCapability struct { - VirtFunctions *NodeDevicePCIVirtFunctionsCapability - PhysFunction *NodeDevicePCIPhysFunctionCapability - MDevTypes *NodeDevicePCIMDevTypesCapability - Bridge *NodeDevicePCIBridgeCapability - VPD *NodeDevicePCIVPDCapability -} - -type NodeDevicePCIVirtFunctionsCapability struct { - Address []NodeDevicePCIAddress `xml:"address,omitempty"` - MaxCount int `xml:"maxCount,attr,omitempty"` -} - -type NodeDevicePCIPhysFunctionCapability struct { - Address NodeDevicePCIAddress `xml:"address,omitempty"` -} - -type NodeDevicePCIMDevTypesCapability struct { - Types []NodeDeviceMDevType `xml:"type"` -} - -type NodeDeviceMDevType struct { - ID string `xml:"id,attr"` - Name string `xml:"name"` - DeviceAPI string `xml:"deviceAPI"` - AvailableInstances uint `xml:"availableInstances"` -} - -type NodeDevicePCIBridgeCapability struct { -} - -type NodeDevicePCIVPDCapability struct { - Name string `xml:"name,omitempty"` - ReadOnly *NodeDevicePCIVPDFieldsRO `xml:"-"` - ReadWrite *NodeDevicePCIVPDFieldsRW `xml:"-"` -} - -type NodeDevicePCIVPDFieldsRO struct { - ChangeLevel string `xml:"change_level,omitempty"` - ManufactureID string `xml:"manufacture_id,omitempty"` - PartNumber string `xml:"part_number,omitempty"` - SerialNumber string `xml:"serial_number,omitempty"` - VendorFields []NodeDevicePCIVPDCustomField `xml:"vendor_field"` -} - -type NodeDevicePCIVPDFieldsRW struct { - AssetTag string `xml:"asset_tag,omitempty"` - VendorFields []NodeDevicePCIVPDCustomField `xml:"vendor_field"` - SystemFields []NodeDevicePCIVPDCustomField `xml:"system_field"` -} - -type NodeDevicePCIVPDCustomField struct { - Index string `xml:"index,attr"` - Value string `xml:",chardata"` -} - -type NodeDeviceSystemHardware struct { - Vendor string `xml:"vendor"` - Version string `xml:"version"` - Serial string `xml:"serial"` - UUID string `xml:"uuid"` -} - -type NodeDeviceSystemFirmware struct { - Vendor string `xml:"vendor"` - Version string `xml:"version"` - ReleaseData string `xml:"release_date"` -} - -type NodeDeviceSystemCapability struct { - Product string `xml:"product,omitempty"` - Hardware *NodeDeviceSystemHardware `xml:"hardware"` - Firmware *NodeDeviceSystemFirmware `xml:"firmware"` -} - -type NodeDeviceUSBDeviceCapability struct { - Bus int `xml:"bus"` - Device int `xml:"device"` - Port int `xml:"port"` - Product NodeDeviceIDName `xml:"product,omitempty"` - Vendor NodeDeviceIDName `xml:"vendor,omitempty"` -} - -type NodeDeviceUSBCapability struct { - Number int `xml:"number"` - Class int `xml:"class"` - Subclass int `xml:"subclass"` - Protocol int `xml:"protocol"` - Description string `xml:"description,omitempty"` -} - -type NodeDeviceNetOffloadFeatures struct { - Name string `xml:"name,attr"` -} - -type NodeDeviceNetLink struct { - State string `xml:"state,attr"` - Speed string `xml:"speed,attr,omitempty"` -} - -type NodeDeviceNetSubCapability struct { - Wireless80211 *NodeDeviceNet80211Capability - Ethernet80203 *NodeDeviceNet80203Capability -} - -type NodeDeviceNet80211Capability struct { -} - -type NodeDeviceNet80203Capability struct { -} - -type NodeDeviceNetCapability struct { - Interface string `xml:"interface"` - Address string `xml:"address"` - Link *NodeDeviceNetLink `xml:"link"` - Features []NodeDeviceNetOffloadFeatures `xml:"feature,omitempty"` - Capability []NodeDeviceNetSubCapability `xml:"capability"` -} - -type NodeDeviceSCSIVPortOpsCapability struct { - VPorts int `xml:"vports"` - MaxVPorts int `xml:"max_vports"` -} - -type NodeDeviceSCSIFCHostCapability struct { - WWNN string `xml:"wwnn,omitempty"` - WWPN string `xml:"wwpn,omitempty"` - FabricWWN string `xml:"fabric_wwn,omitempty"` -} - -type NodeDeviceSCSIHostSubCapability struct { - VPortOps *NodeDeviceSCSIVPortOpsCapability - FCHost *NodeDeviceSCSIFCHostCapability -} - -type NodeDeviceSCSIHostCapability struct { - Host uint `xml:"host"` - UniqueID *uint `xml:"unique_id"` - Capability []NodeDeviceSCSIHostSubCapability `xml:"capability"` -} - -type NodeDeviceSCSITargetCapability struct { - Target string `xml:"target"` - Capability []NodeDeviceSCSITargetSubCapability `xml:"capability"` -} - -type NodeDeviceSCSITargetSubCapability struct { - FCRemotePort *NodeDeviceSCSIFCRemotePortCapability -} - -type NodeDeviceSCSIFCRemotePortCapability struct { - RPort string `xml:"rport"` - WWPN string `xml:"wwpn"` -} - -type NodeDeviceSCSICapability struct { - Host int `xml:"host"` - Bus int `xml:"bus"` - Target int `xml:"target"` - Lun int `xml:"lun"` - Type string `xml:"type"` -} - -type NodeDeviceStorageSubCapability struct { - Removable *NodeDeviceStorageRemovableCapability -} - -type NodeDeviceStorageRemovableCapability struct { - MediaAvailable *uint `xml:"media_available"` - MediaSize *uint `xml:"media_size"` - MediaLabel string `xml:"media_label,omitempty"` - LogicalBlockSize *uint `xml:"logical_block_size"` - NumBlocks *uint `xml:"num_blocks"` -} - -type NodeDeviceStorageCapability struct { - Block string `xml:"block,omitempty"` - Bus string `xml:"bus,omitempty"` - DriverType string `xml:"drive_type,omitempty"` - Model string `xml:"model,omitempty"` - Vendor string `xml:"vendor,omitempty"` - Serial string `xml:"serial,omitempty"` - Size *uint `xml:"size"` - LogicalBlockSize *uint `xml:"logical_block_size"` - NumBlocks *uint `xml:"num_blocks"` - Capability []NodeDeviceStorageSubCapability `xml:"capability"` -} - -type NodeDeviceDRMCapability struct { - Type string `xml:"type"` -} - -type NodeDeviceCCWSubCapability struct { - GroupMember *NodeDeviceCCWGroupMemberCapability -} - -type NodeDeviceCCWGroupMemberCapability struct { - GroupDevice string `xml:"group_device"` -} - -type NodeDeviceCCWCapability struct { - CSSID *uint `xml:"cssid"` - SSID *uint `xml:"ssid"` - DevNo *uint `xml:"devno"` - Capabilities []NodeDeviceCCWSubCapability `xml:"capability"` -} - -type NodeDeviceMDevCapability struct { - Type *NodeDeviceMDevCapabilityType `xml:"type"` - IOMMUGroup *NodeDeviceIOMMUGroup `xml:"iommuGroup"` - UUID string `xml:"uuid,omitempty"` - ParentAddr string `xml:"parent_addr,omitempty"` - Attrs []NodeDeviceMDevCapabilityAttrs `xml:"attr,omitempty"` -} - -type NodeDeviceMDevCapabilityType struct { - ID string `xml:"id,attr"` -} - -type NodeDeviceMDevCapabilityAttrs struct { - Name string `xml:"name,attr"` - Value string `xml:"value,attr"` -} - -type NodeDeviceCSSCapability struct { - CSSID *uint `xml:"cssid"` - SSID *uint `xml:"ssid"` - DevNo *uint `xml:"devno"` - ChannelDevAddr *NodeDeviceCSSChannelDevAddr `xml:"channel_dev_addr"` - Capabilities []NodeDeviceCSSSubCapability `xml:"capability"` -} - -type NodeDeviceCSSChannelDevAddr struct { - CSSID *uint `xml:"cssid"` - SSID *uint `xml:"ssid"` - DevNo *uint `xml:"devno"` -} - -type NodeDeviceCSSSubCapability struct { - MDevTypes *NodeDeviceCSSMDevTypesCapability -} - -type NodeDeviceCSSMDevTypesCapability struct { - Types []NodeDeviceMDevType `xml:"type"` -} - -type NodeDeviceAPQueueCapability struct { - APAdapter string `xml:"ap-adapter"` - APDomain string `xml:"ap-domain"` -} - -type NodeDeviceAPCardCapability struct { - APAdapter string `xml:"ap-adapter"` -} - -type NodeDeviceAPMatrixCapability struct { - Capabilities []NodeDeviceAPMatrixSubCapability `xml:"capability"` -} - -type NodeDeviceAPMatrixSubCapability struct { - MDevTypes *NodeDeviceAPMatrixMDevTypesCapability -} - -type NodeDeviceAPMatrixMDevTypesCapability struct { - Types []NodeDeviceMDevType `xml:"type"` -} - -type NodeDeviceCCWGroupCapability struct { - State string `xml:"state",omitempty` - CSSID *uint `xml:"cssid"` - SSID *uint `xml:"ssid"` - DevNo *uint `xml:"devno"` - Members *NodeDeviceCCWGroupMembers `xml:"members"` - Capabilities []NodeDeviceCCWGroupSubCapability `xml:"capability"` -} - -type NodeDeviceCCWGroupMembers struct { - CCWDevice []NodeDeviceCCWGroupMembersDevice `xml:"ccw_device"` -} - -type NodeDeviceCCWGroupMembersDevice struct { - Ref string `xml:"ref,attr,omitempty"` - Name string `xml:",chardata"` -} - -type NodeDeviceCCWGroupSubCapability struct { - QEthGeneric *NodeDeviceCCWGroupSubCapabilityQEthGeneric `xml:"-"` -} - -type NodeDeviceCCWGroupSubCapabilityQEthGeneric struct { - CardType string `xml:"card_type"` - ChpID string `xml:"chpid"` -} - -func (a *NodeDevicePCIAddress) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "domain", a.Domain, "0x%04x") - marshalUintAttr(&start, "bus", a.Bus, "0x%02x") - marshalUintAttr(&start, "slot", a.Slot, "0x%02x") - marshalUintAttr(&start, "function", a.Function, "0x%x") - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *NodeDevicePCIAddress) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "domain" { - if err := unmarshalUintAttr(attr.Value, &a.Domain, 0); err != nil { - return err - } - } else if attr.Name.Local == "bus" { - if err := unmarshalUintAttr(attr.Value, &a.Bus, 0); err != nil { - return err - } - } else if attr.Name.Local == "slot" { - if err := unmarshalUintAttr(attr.Value, &a.Slot, 0); err != nil { - return err - } - } else if attr.Name.Local == "function" { - if err := unmarshalUintAttr(attr.Value, &a.Function, 0); err != nil { - return err - } - } - } - d.Skip() - return nil -} - -func (c *NodeDeviceCSSSubCapability) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing node device capability type") - } - - switch typ { - case "mdev_types": - var mdevTypesCaps NodeDeviceCSSMDevTypesCapability - if err := d.DecodeElement(&mdevTypesCaps, &start); err != nil { - return err - } - c.MDevTypes = &mdevTypesCaps - } - d.Skip() - return nil -} - -func (c *NodeDeviceCSSSubCapability) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if c.MDevTypes != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "mdev_types", - }) - return e.EncodeElement(c.MDevTypes, start) - } - return nil -} - -func (c *NodeDeviceCCWCapability) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - e.EncodeToken(start) - if c.CSSID != nil { - cssid := xml.StartElement{ - Name: xml.Name{Local: "cssid"}, - } - e.EncodeToken(cssid) - e.EncodeToken(xml.CharData(fmt.Sprintf("0x%x", *c.CSSID))) - e.EncodeToken(cssid.End()) - } - if c.SSID != nil { - ssid := xml.StartElement{ - Name: xml.Name{Local: "ssid"}, - } - e.EncodeToken(ssid) - e.EncodeToken(xml.CharData(fmt.Sprintf("0x%x", *c.SSID))) - e.EncodeToken(ssid.End()) - } - if c.DevNo != nil { - devno := xml.StartElement{ - Name: xml.Name{Local: "devno"}, - } - e.EncodeToken(devno) - e.EncodeToken(xml.CharData(fmt.Sprintf("0x%04x", *c.DevNo))) - e.EncodeToken(devno.End()) - } - if c.Capabilities != nil { - for _, subcap := range c.Capabilities { - start := xml.StartElement{ - Name: xml.Name{Local: "capability"}, - } - e.EncodeElement(&subcap, start) - } - } - e.EncodeToken(start.End()) - return nil -} - -func (c *NodeDeviceCCWCapability) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for { - tok, err := d.Token() - if err == io.EOF { - break - } - if err != nil { - return err - } - - switch tok := tok.(type) { - case xml.StartElement: - cdata, err := d.Token() - if err != nil { - return err - } - - if tok.Name.Local == "cssid" || - tok.Name.Local == "ssid" || - tok.Name.Local == "devno" { - chardata, ok := cdata.(xml.CharData) - if !ok { - return fmt.Errorf("Expected text for CCW '%s'", tok.Name.Local) - } - - valstr := strings.TrimPrefix(string(chardata), "0x") - val, err := strconv.ParseUint(valstr, 16, 64) - if err != nil { - return err - } - - vali := uint(val) - if tok.Name.Local == "cssid" { - c.CSSID = &vali - } else if tok.Name.Local == "ssid" { - c.SSID = &vali - } else if tok.Name.Local == "devno" { - c.DevNo = &vali - } - } else if tok.Name.Local == "capability" { - subcap := &NodeDeviceCCWSubCapability{} - err := d.DecodeElement(subcap, &tok) - if err != nil { - return err - } - c.Capabilities = append(c.Capabilities, *subcap) - continue - } else { - continue - } - } - } - return nil -} - -func (c *NodeDeviceCSSCapability) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - e.EncodeToken(start) - if c.CSSID != nil { - cssid := xml.StartElement{ - Name: xml.Name{Local: "cssid"}, - } - e.EncodeToken(cssid) - e.EncodeToken(xml.CharData(fmt.Sprintf("0x%x", *c.CSSID))) - e.EncodeToken(cssid.End()) - } - if c.SSID != nil { - ssid := xml.StartElement{ - Name: xml.Name{Local: "ssid"}, - } - e.EncodeToken(ssid) - e.EncodeToken(xml.CharData(fmt.Sprintf("0x%x", *c.SSID))) - e.EncodeToken(ssid.End()) - } - if c.DevNo != nil { - devno := xml.StartElement{ - Name: xml.Name{Local: "devno"}, - } - e.EncodeToken(devno) - e.EncodeToken(xml.CharData(fmt.Sprintf("0x%04x", *c.DevNo))) - e.EncodeToken(devno.End()) - } - if c.ChannelDevAddr != nil { - start := xml.StartElement{ - Name: xml.Name{Local: "channel_dev_addr"}, - } - e.EncodeElement(c.ChannelDevAddr, start) - } - if c.Capabilities != nil { - for _, subcap := range c.Capabilities { - start := xml.StartElement{ - Name: xml.Name{Local: "capability"}, - } - e.EncodeElement(&subcap, start) - } - } - e.EncodeToken(start.End()) - return nil -} - -func (c *NodeDeviceCSSCapability) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for { - tok, err := d.Token() - if err == io.EOF { - break - } - if err != nil { - return err - } - - switch tok := tok.(type) { - case xml.StartElement: - cdata, err := d.Token() - if err != nil { - return err - } - - if tok.Name.Local == "capability" { - subcap := &NodeDeviceCSSSubCapability{} - err := d.DecodeElement(subcap, &tok) - if err != nil { - return err - } - c.Capabilities = append(c.Capabilities, *subcap) - continue - } else if tok.Name.Local == "channel_dev_addr" { - chandev := &NodeDeviceCSSChannelDevAddr{} - err := d.DecodeElement(chandev, &tok) - if err != nil { - return err - } - c.ChannelDevAddr = chandev - continue - } - - if tok.Name.Local != "cssid" && - tok.Name.Local != "ssid" && - tok.Name.Local != "devno" { - continue - } - - chardata, ok := cdata.(xml.CharData) - if !ok { - return fmt.Errorf("Expected text for CSS '%s'", tok.Name.Local) - } - - valstr := strings.TrimPrefix(string(chardata), "0x") - val, err := strconv.ParseUint(valstr, 16, 64) - if err != nil { - return err - } - - vali := uint(val) - if tok.Name.Local == "cssid" { - c.CSSID = &vali - } else if tok.Name.Local == "ssid" { - c.SSID = &vali - } else if tok.Name.Local == "devno" { - c.DevNo = &vali - } - } - } - return nil -} - -func (c *NodeDeviceCSSChannelDevAddr) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - e.EncodeToken(start) - if c.CSSID != nil { - cssid := xml.StartElement{ - Name: xml.Name{Local: "cssid"}, - } - e.EncodeToken(cssid) - e.EncodeToken(xml.CharData(fmt.Sprintf("0x%x", *c.CSSID))) - e.EncodeToken(cssid.End()) - } - if c.SSID != nil { - ssid := xml.StartElement{ - Name: xml.Name{Local: "ssid"}, - } - e.EncodeToken(ssid) - e.EncodeToken(xml.CharData(fmt.Sprintf("0x%x", *c.SSID))) - e.EncodeToken(ssid.End()) - } - if c.DevNo != nil { - devno := xml.StartElement{ - Name: xml.Name{Local: "devno"}, - } - e.EncodeToken(devno) - e.EncodeToken(xml.CharData(fmt.Sprintf("0x%04x", *c.DevNo))) - e.EncodeToken(devno.End()) - } - e.EncodeToken(start.End()) - return nil -} - -func (c *NodeDeviceCSSChannelDevAddr) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for { - tok, err := d.Token() - if err == io.EOF { - break - } - if err != nil { - return err - } - - switch tok := tok.(type) { - case xml.StartElement: - cdata, err := d.Token() - if err != nil { - return err - } - - if tok.Name.Local != "cssid" && - tok.Name.Local != "ssid" && - tok.Name.Local != "devno" { - continue - } - - chardata, ok := cdata.(xml.CharData) - if !ok { - return fmt.Errorf("Expected text for CSS '%s'", tok.Name.Local) - } - - valstr := strings.TrimPrefix(string(chardata), "0x") - val, err := strconv.ParseUint(valstr, 16, 64) - if err != nil { - return err - } - - vali := uint(val) - if tok.Name.Local == "cssid" { - c.CSSID = &vali - } else if tok.Name.Local == "ssid" { - c.SSID = &vali - } else if tok.Name.Local == "devno" { - c.DevNo = &vali - } - } - } - return nil -} - -func (c *NodeDevicePCISubCapability) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing node device capability type") - } - - switch typ { - case "virt_functions": - var virtFuncCaps NodeDevicePCIVirtFunctionsCapability - if err := d.DecodeElement(&virtFuncCaps, &start); err != nil { - return err - } - c.VirtFunctions = &virtFuncCaps - case "phys_function": - var physFuncCaps NodeDevicePCIPhysFunctionCapability - if err := d.DecodeElement(&physFuncCaps, &start); err != nil { - return err - } - c.PhysFunction = &physFuncCaps - case "mdev_types": - var mdevTypeCaps NodeDevicePCIMDevTypesCapability - if err := d.DecodeElement(&mdevTypeCaps, &start); err != nil { - return err - } - c.MDevTypes = &mdevTypeCaps - case "pci-bridge": - var bridgeCaps NodeDevicePCIBridgeCapability - if err := d.DecodeElement(&bridgeCaps, &start); err != nil { - return err - } - c.Bridge = &bridgeCaps - case "vpd": - var vpdCaps NodeDevicePCIVPDCapability - if err := d.DecodeElement(&vpdCaps, &start); err != nil { - return err - } - c.VPD = &vpdCaps - } - d.Skip() - return nil -} - -func (c *NodeDevicePCISubCapability) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if c.VirtFunctions != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "virt_functions", - }) - return e.EncodeElement(c.VirtFunctions, start) - } else if c.PhysFunction != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "phys_function", - }) - return e.EncodeElement(c.PhysFunction, start) - } else if c.MDevTypes != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "mdev_types", - }) - return e.EncodeElement(c.MDevTypes, start) - } else if c.Bridge != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "pci-bridge", - }) - return e.EncodeElement(c.Bridge, start) - } else if c.VPD != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vpd", - }) - return e.EncodeElement(c.VPD, start) - } - return nil -} - -func (c *NodeDeviceSCSITargetSubCapability) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing node device capability type") - } - - switch typ { - case "fc_remote_port": - var fcCaps NodeDeviceSCSIFCRemotePortCapability - if err := d.DecodeElement(&fcCaps, &start); err != nil { - return err - } - c.FCRemotePort = &fcCaps - } - d.Skip() - return nil -} - -func (c *NodeDeviceSCSITargetSubCapability) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if c.FCRemotePort != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "fc_remote_port", - }) - return e.EncodeElement(c.FCRemotePort, start) - } - return nil -} - -func (c *NodeDeviceSCSIHostSubCapability) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing node device capability type") - } - - switch typ { - case "fc_host": - var fcCaps NodeDeviceSCSIFCHostCapability - if err := d.DecodeElement(&fcCaps, &start); err != nil { - return err - } - c.FCHost = &fcCaps - case "vport_ops": - var vportCaps NodeDeviceSCSIVPortOpsCapability - if err := d.DecodeElement(&vportCaps, &start); err != nil { - return err - } - c.VPortOps = &vportCaps - } - d.Skip() - return nil -} - -func (c *NodeDeviceSCSIHostSubCapability) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if c.FCHost != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "fc_host", - }) - return e.EncodeElement(c.FCHost, start) - } else if c.VPortOps != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "vport_ops", - }) - return e.EncodeElement(c.VPortOps, start) - } - return nil -} - -func (c *NodeDeviceStorageSubCapability) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing node device capability type") - } - - switch typ { - case "removable": - var removeCaps NodeDeviceStorageRemovableCapability - if err := d.DecodeElement(&removeCaps, &start); err != nil { - return err - } - c.Removable = &removeCaps - } - d.Skip() - return nil -} - -func (c *NodeDeviceCCWSubCapability) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if c.GroupMember != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "ccwgroup_member", - }) - return e.EncodeElement(c.GroupMember, start) - } - return nil -} - -func (c *NodeDeviceCCWSubCapability) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing node device capability type") - } - - switch typ { - case "ccwgroup_member": - var groupMemberCaps NodeDeviceCCWGroupMemberCapability - if err := d.DecodeElement(&groupMemberCaps, &start); err != nil { - return err - } - c.GroupMember = &groupMemberCaps - } - d.Skip() - return nil -} - -func (c *NodeDeviceStorageSubCapability) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if c.Removable != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "removable", - }) - return e.EncodeElement(c.Removable, start) - } - return nil -} - -func (c *NodeDeviceNetSubCapability) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing node device capability type") - } - - switch typ { - case "80211": - var wlanCaps NodeDeviceNet80211Capability - if err := d.DecodeElement(&wlanCaps, &start); err != nil { - return err - } - c.Wireless80211 = &wlanCaps - case "80203": - var ethCaps NodeDeviceNet80203Capability - if err := d.DecodeElement(ðCaps, &start); err != nil { - return err - } - c.Ethernet80203 = ðCaps - } - d.Skip() - return nil -} - -func (c *NodeDeviceNetSubCapability) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if c.Wireless80211 != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "80211", - }) - return e.EncodeElement(c.Wireless80211, start) - } else if c.Ethernet80203 != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "80203", - }) - return e.EncodeElement(c.Ethernet80203, start) - } - return nil -} - -func (c *NodeDeviceAPMatrixSubCapability) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing node device capability type") - } - - switch typ { - case "mdev_types": - var mdevTypeCaps NodeDeviceAPMatrixMDevTypesCapability - if err := d.DecodeElement(&mdevTypeCaps, &start); err != nil { - return err - } - c.MDevTypes = &mdevTypeCaps - } - d.Skip() - return nil -} - -func (c *NodeDeviceAPMatrixSubCapability) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if c.MDevTypes != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "mdev_types", - }) - return e.EncodeElement(c.MDevTypes, start) - } - return nil -} - -type nodeDevicePCIVPDFields struct { - ReadOnly *NodeDevicePCIVPDFieldsRO - ReadWrite *NodeDevicePCIVPDFieldsRW -} - -type nodeDevicePCIVPDCapability struct { - Name string `xml:"name,omitempty"` - Fields []nodeDevicePCIVPDFields `xml:"fields"` -} - -func (c *nodeDevicePCIVPDFields) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - acc, ok := getAttr(start.Attr, "access") - if !ok { - return fmt.Errorf("Missing node device PCI VPD capability access") - } - - switch acc { - case "readonly": - var ro NodeDevicePCIVPDFieldsRO - if err := d.DecodeElement(&ro, &start); err != nil { - return err - } - c.ReadOnly = &ro - case "readwrite": - var rw NodeDevicePCIVPDFieldsRW - if err := d.DecodeElement(&rw, &start); err != nil { - return err - } - c.ReadWrite = &rw - } - d.Skip() - return nil -} - -func (c *NodeDevicePCIVPDCapability) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - var ccopy nodeDevicePCIVPDCapability - ccopy.Name = c.Name - if c.ReadOnly != nil { - ccopy.Fields = append(ccopy.Fields, nodeDevicePCIVPDFields{ - ReadOnly: c.ReadOnly, - }) - } - if c.ReadWrite != nil { - ccopy.Fields = append(ccopy.Fields, nodeDevicePCIVPDFields{ - ReadWrite: c.ReadWrite, - }) - } - e.EncodeElement(&ccopy, start) - return nil -} - -func (c *NodeDevicePCIVPDCapability) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - var ccopy nodeDevicePCIVPDCapability - if err := d.DecodeElement(&ccopy, &start); err != nil { - return err - } - c.Name = ccopy.Name - for _, field := range ccopy.Fields { - if field.ReadOnly != nil { - c.ReadOnly = field.ReadOnly - } else if field.ReadWrite != nil { - c.ReadWrite = field.ReadWrite - } - } - return nil -} - -func (c *nodeDevicePCIVPDFields) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if c.ReadOnly != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "access"}, "readonly", - }) - return e.EncodeElement(c.ReadOnly, start) - } else if c.ReadWrite != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "access"}, "readwrite", - }) - return e.EncodeElement(c.ReadWrite, start) - } - return nil -} - -func (c *NodeDeviceCCWGroupCapability) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - e.EncodeToken(start) - if c.State != "" { - state := xml.StartElement{ - Name: xml.Name{Local: "state"}, - } - e.EncodeToken(state) - e.EncodeToken(xml.CharData(c.State)) - e.EncodeToken(state.End()) - } - if c.CSSID != nil { - cssid := xml.StartElement{ - Name: xml.Name{Local: "cssid"}, - } - e.EncodeToken(cssid) - e.EncodeToken(xml.CharData(fmt.Sprintf("0x%x", *c.CSSID))) - e.EncodeToken(cssid.End()) - } - if c.SSID != nil { - ssid := xml.StartElement{ - Name: xml.Name{Local: "ssid"}, - } - e.EncodeToken(ssid) - e.EncodeToken(xml.CharData(fmt.Sprintf("0x%x", *c.SSID))) - e.EncodeToken(ssid.End()) - } - if c.DevNo != nil { - devno := xml.StartElement{ - Name: xml.Name{Local: "devno"}, - } - e.EncodeToken(devno) - e.EncodeToken(xml.CharData(fmt.Sprintf("0x%04x", *c.DevNo))) - e.EncodeToken(devno.End()) - } - if c.Members != nil { - start := xml.StartElement{ - Name: xml.Name{Local: "members"}, - } - e.EncodeElement(&c.Members, start) - } - if c.Capabilities != nil { - for _, subcap := range c.Capabilities { - start := xml.StartElement{ - Name: xml.Name{Local: "capability"}, - } - e.EncodeElement(&subcap, start) - } - } - e.EncodeToken(start.End()) - return nil -} - -func (c *NodeDeviceCCWGroupCapability) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for { - tok, err := d.Token() - if err == io.EOF { - break - } - if err != nil { - return err - } - - switch tok := tok.(type) { - case xml.StartElement: - cdata, err := d.Token() - if err != nil { - return err - } - - if tok.Name.Local == "cssid" || - tok.Name.Local == "ssid" || - tok.Name.Local == "devno" { - chardata, ok := cdata.(xml.CharData) - if !ok { - return fmt.Errorf("Expected text for CCW '%s'", tok.Name.Local) - } - - valstr := strings.TrimPrefix(string(chardata), "0x") - val, err := strconv.ParseUint(valstr, 16, 64) - if err != nil { - return err - } - - vali := uint(val) - if tok.Name.Local == "cssid" { - c.CSSID = &vali - } else if tok.Name.Local == "ssid" { - c.SSID = &vali - } else if tok.Name.Local == "devno" { - c.DevNo = &vali - } - } else if tok.Name.Local == "state" { - chardata, ok := cdata.(xml.CharData) - if !ok { - return fmt.Errorf("Expected text for CCW '%s'", tok.Name.Local) - } - - c.State = string(chardata) - } else if tok.Name.Local == "members" { - members := &NodeDeviceCCWGroupMembers{} - err := d.DecodeElement(members, &tok) - if err != nil { - return err - } - c.Members = members - } else if tok.Name.Local == "capability" { - subcap := &NodeDeviceCCWGroupSubCapability{} - err := d.DecodeElement(subcap, &tok) - if err != nil { - return err - } - c.Capabilities = append(c.Capabilities, *subcap) - } else { - continue - } - } - } - return nil -} - -func (c *NodeDeviceCCWGroupSubCapability) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if c.QEthGeneric != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "qeth_generic", - }) - return e.EncodeElement(c.QEthGeneric, start) - } - return nil -} - -func (c *NodeDeviceCCWGroupSubCapability) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing node device capability type") - } - - switch typ { - case "qeth_generic": - var qethCaps NodeDeviceCCWGroupSubCapabilityQEthGeneric - if err := d.DecodeElement(&qethCaps, &start); err != nil { - return err - } - c.QEthGeneric = &qethCaps - } - d.Skip() - return nil -} - -func (c *NodeDeviceCapability) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - typ, ok := getAttr(start.Attr, "type") - if !ok { - return fmt.Errorf("Missing node device capability type") - } - - switch typ { - case "pci": - var pciCaps NodeDevicePCICapability - if err := d.DecodeElement(&pciCaps, &start); err != nil { - return err - } - c.PCI = &pciCaps - case "system": - var systemCaps NodeDeviceSystemCapability - if err := d.DecodeElement(&systemCaps, &start); err != nil { - return err - } - c.System = &systemCaps - case "usb_device": - var usbdevCaps NodeDeviceUSBDeviceCapability - if err := d.DecodeElement(&usbdevCaps, &start); err != nil { - return err - } - c.USBDevice = &usbdevCaps - case "usb": - var usbCaps NodeDeviceUSBCapability - if err := d.DecodeElement(&usbCaps, &start); err != nil { - return err - } - c.USB = &usbCaps - case "net": - var netCaps NodeDeviceNetCapability - if err := d.DecodeElement(&netCaps, &start); err != nil { - return err - } - c.Net = &netCaps - case "scsi_host": - var scsiHostCaps NodeDeviceSCSIHostCapability - if err := d.DecodeElement(&scsiHostCaps, &start); err != nil { - return err - } - c.SCSIHost = &scsiHostCaps - case "scsi_target": - var scsiTargetCaps NodeDeviceSCSITargetCapability - if err := d.DecodeElement(&scsiTargetCaps, &start); err != nil { - return err - } - c.SCSITarget = &scsiTargetCaps - case "scsi": - var scsiCaps NodeDeviceSCSICapability - if err := d.DecodeElement(&scsiCaps, &start); err != nil { - return err - } - c.SCSI = &scsiCaps - case "storage": - var storageCaps NodeDeviceStorageCapability - if err := d.DecodeElement(&storageCaps, &start); err != nil { - return err - } - c.Storage = &storageCaps - case "drm": - var drmCaps NodeDeviceDRMCapability - if err := d.DecodeElement(&drmCaps, &start); err != nil { - return err - } - c.DRM = &drmCaps - case "ccw": - var ccwCaps NodeDeviceCCWCapability - if err := d.DecodeElement(&ccwCaps, &start); err != nil { - return err - } - c.CCW = &ccwCaps - case "mdev": - var mdevCaps NodeDeviceMDevCapability - if err := d.DecodeElement(&mdevCaps, &start); err != nil { - return err - } - c.MDev = &mdevCaps - case "css": - var cssCaps NodeDeviceCSSCapability - if err := d.DecodeElement(&cssCaps, &start); err != nil { - return err - } - c.CSS = &cssCaps - case "ap_queue": - var apCaps NodeDeviceAPQueueCapability - if err := d.DecodeElement(&apCaps, &start); err != nil { - return err - } - c.APQueue = &apCaps - case "ap_matrix": - var apCaps NodeDeviceAPMatrixCapability - if err := d.DecodeElement(&apCaps, &start); err != nil { - return err - } - c.APMatrix = &apCaps - case "ap_card": - var apCaps NodeDeviceAPCardCapability - if err := d.DecodeElement(&apCaps, &start); err != nil { - return err - } - c.APCard = &apCaps - case "ccwgroup": - var ccwGroupCaps NodeDeviceCCWGroupCapability - if err := d.DecodeElement(&ccwGroupCaps, &start); err != nil { - return err - } - c.CCWGroup = &ccwGroupCaps - } - d.Skip() - return nil -} - -func (c *NodeDeviceCapability) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - if c.PCI != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "pci", - }) - return e.EncodeElement(c.PCI, start) - } else if c.System != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "system", - }) - return e.EncodeElement(c.System, start) - } else if c.USB != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "usb", - }) - return e.EncodeElement(c.USB, start) - } else if c.USBDevice != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "usb_device", - }) - return e.EncodeElement(c.USBDevice, start) - } else if c.Net != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "net", - }) - return e.EncodeElement(c.Net, start) - } else if c.SCSI != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "scsi", - }) - return e.EncodeElement(c.SCSI, start) - } else if c.SCSIHost != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "scsi_host", - }) - return e.EncodeElement(c.SCSIHost, start) - } else if c.SCSITarget != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "scsi_target", - }) - return e.EncodeElement(c.SCSITarget, start) - } else if c.Storage != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "storage", - }) - return e.EncodeElement(c.Storage, start) - } else if c.DRM != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "drm", - }) - return e.EncodeElement(c.DRM, start) - } else if c.CCW != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "ccw", - }) - return e.EncodeElement(c.CCW, start) - } else if c.MDev != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "mdev", - }) - return e.EncodeElement(c.MDev, start) - } else if c.CSS != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "css", - }) - return e.EncodeElement(c.CSS, start) - } else if c.APQueue != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "ap_queue", - }) - return e.EncodeElement(c.APQueue, start) - } else if c.APCard != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "ap_card", - }) - return e.EncodeElement(c.APCard, start) - } else if c.APMatrix != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "ap_matrix", - }) - return e.EncodeElement(c.APMatrix, start) - } else if c.CCWGroup != nil { - start.Attr = append(start.Attr, xml.Attr{ - xml.Name{Local: "type"}, "ccwgroup", - }) - return e.EncodeElement(c.CCWGroup, start) - } - return nil -} - -func (c *NodeDevice) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), c) -} - -func (c *NodeDevice) Marshal() (string, error) { - doc, err := xml.MarshalIndent(c, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} diff --git a/vendor/libvirt.org/go/libvirtxml/nwfilter.go b/vendor/libvirt.org/go/libvirtxml/nwfilter.go deleted file mode 100644 index 44c7f08c3a..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/nwfilter.go +++ /dev/null @@ -1,514 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2017 Lian Duan - * - */ - -package libvirtxml - -import ( - "encoding/xml" - "fmt" - "io" - "strconv" - "strings" -) - -type NWFilter struct { - XMLName xml.Name `xml:"filter"` - Name string `xml:"name,attr"` - UUID string `xml:"uuid,omitempty"` - Chain string `xml:"chain,attr,omitempty"` - Priority int `xml:"priority,attr,omitempty"` - Entries []NWFilterEntry -} - -type NWFilterEntry struct { - Rule *NWFilterRule - Ref *NWFilterRef -} - -type NWFilterRef struct { - Filter string `xml:"filter,attr"` - Parameters []NWFilterParameter `xml:"parameter"` -} - -type NWFilterParameter struct { - Name string `xml:"name,attr"` - Value string `xml:"value,attr"` -} - -type NWFilterField struct { - Var string - Str string - Uint *uint -} - -type NWFilterRule struct { - Action string `xml:"action,attr,omitempty"` - Direction string `xml:"direction,attr,omitempty"` - Priority int `xml:"priority,attr,omitempty"` - StateMatch string `xml:"statematch,attr,omitempty"` - - ARP *NWFilterRuleARP `xml:"arp"` - RARP *NWFilterRuleRARP `xml:"rarp"` - MAC *NWFilterRuleMAC `xml:"mac"` - VLAN *NWFilterRuleVLAN `xml:"vlan"` - STP *NWFilterRuleSTP `xml:"stp"` - IP *NWFilterRuleIP `xml:"ip"` - IPv6 *NWFilterRuleIPv6 `xml:"ipv6"` - TCP *NWFilterRuleTCP `xml:"tcp"` - UDP *NWFilterRuleUDP `xml:"udp"` - UDPLite *NWFilterRuleUDPLite `xml:"udplite"` - ESP *NWFilterRuleESP `xml:"esp"` - AH *NWFilterRuleAH `xml:"ah"` - SCTP *NWFilterRuleSCTP `xml:"sctp"` - ICMP *NWFilterRuleICMP `xml:"icmp"` - All *NWFilterRuleAll `xml:"all"` - IGMP *NWFilterRuleIGMP `xml:"igmp"` - TCPIPv6 *NWFilterRuleTCPIPv6 `xml:"tcp-ipv6"` - UDPIPv6 *NWFilterRuleUDPIPv6 `xml:"udp-ipv6"` - UDPLiteIPv6 *NWFilterRuleUDPLiteIPv6 `xml:"udplite-ipv6"` - ESPIPv6 *NWFilterRuleESPIPv6 `xml:"esp-ipv6"` - AHIPv6 *NWFilterRuleAHIPv6 `xml:"ah-ipv6"` - SCTPIPv6 *NWFilterRuleSCTPIPv6 `xml:"sctp-ipv6"` - ICMPv6 *NWFilterRuleICMPIPv6 `xml:"icmpv6"` - AllIPv6 *NWFilterRuleAllIPv6 `xml:"all-ipv6"` -} - -type NWFilterRuleCommonMAC struct { - SrcMACAddr NWFilterField `xml:"srcmacaddr,attr,omitempty"` - SrcMACMask NWFilterField `xml:"srcmacmask,attr,omitempty"` - DstMACAddr NWFilterField `xml:"dstmacaddr,attr,omitempty"` - DstMACMask NWFilterField `xml:"dstmacmask,attr,omitempty"` -} - -type NWFilterRuleCommonIP struct { - SrcMACAddr NWFilterField `xml:"srcmacaddr,attr,omitempty"` - SrcIPAddr NWFilterField `xml:"srcipaddr,attr,omitempty"` - SrcIPMask NWFilterField `xml:"srcipmask,attr,omitempty"` - DstIPAddr NWFilterField `xml:"dstipaddr,attr,omitempty"` - DstIPMask NWFilterField `xml:"dstipmask,attr,omitempty"` - SrcIPFrom NWFilterField `xml:"srcipfrom,attr,omitempty"` - SrcIPTo NWFilterField `xml:"srcipto,attr,omitempty"` - DstIPFrom NWFilterField `xml:"dstipfrom,attr,omitempty"` - DstIPTo NWFilterField `xml:"dstipto,attr,omitempty"` - DSCP NWFilterField `xml:"dscp,attr"` - ConnLimitAbove NWFilterField `xml:"connlimit-above,attr"` - State NWFilterField `xml:"state,attr,omitempty"` - IPSet NWFilterField `xml:"ipset,attr,omitempty"` - IPSetFlags NWFilterField `xml:"ipsetflags,attr,omitempty"` -} - -type NWFilterRuleCommonPort struct { - SrcPortStart NWFilterField `xml:"srcportstart,attr"` - SrcPortEnd NWFilterField `xml:"srcportend,attr"` - DstPortStart NWFilterField `xml:"dstportstart,attr"` - DstPortEnd NWFilterField `xml:"dstportend,attr"` -} - -type NWFilterRuleARP struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonMAC - HWType NWFilterField `xml:"hwtype,attr"` - ProtocolType NWFilterField `xml:"protocoltype,attr"` - OpCode NWFilterField `xml:"opcode,attr,omitempty"` - ARPSrcMACAddr NWFilterField `xml:"arpsrcmacaddr,attr,omitempty"` - ARPDstMACAddr NWFilterField `xml:"arpdstmacaddr,attr,omitempty"` - ARPSrcIPAddr NWFilterField `xml:"arpsrcipaddr,attr,omitempty"` - ARPSrcIPMask NWFilterField `xml:"arpsrcipmask,attr,omitempty"` - ARPDstIPAddr NWFilterField `xml:"arpdstipaddr,attr,omitempty"` - ARPDstIPMask NWFilterField `xml:"arpdstipmask,attr,omitempty"` - Gratuitous NWFilterField `xml:"gratuitous,attr,omitempty"` - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleRARP struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonMAC - HWType NWFilterField `xml:"hwtype,attr"` - ProtocolType NWFilterField `xml:"protocoltype,attr"` - OpCode NWFilterField `xml:"opcode,attr,omitempty"` - ARPSrcMACAddr NWFilterField `xml:"arpsrcmacaddr,attr,omitempty"` - ARPDstMACAddr NWFilterField `xml:"arpdstmacaddr,attr,omitempty"` - ARPSrcIPAddr NWFilterField `xml:"arpsrcipaddr,attr,omitempty"` - ARPSrcIPMask NWFilterField `xml:"arpsrcipmask,attr,omitempty"` - ARPDstIPAddr NWFilterField `xml:"arpdstipaddr,attr,omitempty"` - ARPDstIPMask NWFilterField `xml:"arpdstipmask,attr,omitempty"` - Gratuitous NWFilterField `xml:"gratuitous,attr,omitempty"` - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleMAC struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonMAC - ProtocolID NWFilterField `xml:"protocolid,attr,omitempty"` - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleVLAN struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonMAC - VLANID NWFilterField `xml:"vlanid,attr,omitempty"` - EncapProtocol NWFilterField `xml:"encap-protocol,attr,omitempty"` - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleSTP struct { - Match NWFilterField `xml:"match,attr,omitempty"` - SrcMACAddr NWFilterField `xml:"srcmacaddr,attr,omitempty"` - SrcMACMask NWFilterField `xml:"srcmacmask,attr,omitempty"` - Type NWFilterField `xml:"type,attr"` - Flags NWFilterField `xml:"flags,attr"` - RootPriority NWFilterField `xml:"root-priority,attr"` - RootPriorityHi NWFilterField `xml:"root-priority-hi,attr"` - RootAddress NWFilterField `xml:"root-address,attr,omitempty"` - RootAddressMask NWFilterField `xml:"root-address-mask,attr,omitempty"` - RootCost NWFilterField `xml:"root-cost,attr"` - RootCostHi NWFilterField `xml:"root-cost-hi,attr"` - SenderPriority NWFilterField `xml:"sender-priority,attr"` - SenderPriorityHi NWFilterField `xml:"sender-priority-hi,attr"` - SenderAddress NWFilterField `xml:"sender-address,attr,omitempty"` - SenderAddressMask NWFilterField `xml:"sender-address-mask,attr,omitempty"` - Port NWFilterField `xml:"port,attr"` - PortHi NWFilterField `xml:"port-hi,attr"` - Age NWFilterField `xml:"age,attr"` - AgeHi NWFilterField `xml:"age-hi,attr"` - MaxAge NWFilterField `xml:"max-age,attr"` - MaxAgeHi NWFilterField `xml:"max-age-hi,attr"` - HelloTime NWFilterField `xml:"hello-time,attr"` - HelloTimeHi NWFilterField `xml:"hello-time-hi,attr"` - ForwardDelay NWFilterField `xml:"forward-delay,attr"` - ForwardDelayHi NWFilterField `xml:"forward-delay-hi,attr"` - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleIP struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonMAC - SrcIPAddr NWFilterField `xml:"srcipaddr,attr,omitempty"` - SrcIPMask NWFilterField `xml:"srcipmask,attr,omitempty"` - DstIPAddr NWFilterField `xml:"dstipaddr,attr,omitempty"` - DstIPMask NWFilterField `xml:"dstipmask,attr,omitempty"` - Protocol NWFilterField `xml:"protocol,attr,omitempty"` - NWFilterRuleCommonPort - DSCP NWFilterField `xml:"dscp,attr"` - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleIPv6 struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonMAC - SrcIPAddr NWFilterField `xml:"srcipaddr,attr,omitempty"` - SrcIPMask NWFilterField `xml:"srcipmask,attr,omitempty"` - DstIPAddr NWFilterField `xml:"dstipaddr,attr,omitempty"` - DstIPMask NWFilterField `xml:"dstipmask,attr,omitempty"` - Protocol NWFilterField `xml:"protocol,attr,omitempty"` - NWFilterRuleCommonPort - Type NWFilterField `xml:"type,attr"` - TypeEnd NWFilterField `xml:"typeend,attr"` - Code NWFilterField `xml:"code,attr"` - CodeEnd NWFilterField `xml:"codeend,attr"` - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleTCP struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - NWFilterRuleCommonPort - Option NWFilterField `xml:"option,attr"` - Flags NWFilterField `xml:"flags,attr,omitempty"` - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleUDP struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - NWFilterRuleCommonPort - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleUDPLite struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleESP struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleAH struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleSCTP struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - NWFilterRuleCommonPort - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleICMP struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - Type NWFilterField `xml:"type,attr"` - Code NWFilterField `xml:"code,attr"` - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleAll struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleIGMP struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleTCPIPv6 struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - NWFilterRuleCommonPort - Option NWFilterField `xml:"option,attr"` - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleUDPIPv6 struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - NWFilterRuleCommonPort - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleUDPLiteIPv6 struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleESPIPv6 struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleAHIPv6 struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleSCTPIPv6 struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - NWFilterRuleCommonPort - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleICMPIPv6 struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - Type NWFilterField `xml:"type,attr"` - Code NWFilterField `xml:"code,attr"` - Comment string `xml:"comment,attr,omitempty"` -} - -type NWFilterRuleAllIPv6 struct { - Match string `xml:"match,attr,omitempty"` - NWFilterRuleCommonIP - Comment string `xml:"comment,attr,omitempty"` -} - -func (s *NWFilterField) MarshalXMLAttr(name xml.Name) (xml.Attr, error) { - if s == nil { - return xml.Attr{}, nil - } - if s.Str != "" { - return xml.Attr{ - Name: name, - Value: s.Str, - }, nil - } else if s.Var != "" { - return xml.Attr{ - Name: name, - Value: "$" + s.Str, - }, nil - } else if s.Uint != nil { - return xml.Attr{ - Name: name, - Value: fmt.Sprintf("0x%x", *s.Uint), - }, nil - } else { - return xml.Attr{}, nil - } -} - -func (s *NWFilterField) UnmarshalXMLAttr(attr xml.Attr) error { - if attr.Value == "" { - return nil - } - if attr.Value[0] == '$' { - s.Var = attr.Value[1:] - } - if strings.HasPrefix(attr.Value, "0x") { - val, err := strconv.ParseUint(attr.Value[2:], 16, 64) - if err != nil { - return err - } - uval := uint(val) - s.Uint = &uval - } - s.Str = attr.Value - return nil -} - -func (a *NWFilter) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - start.Name.Local = "filter" - start.Attr = append(start.Attr, xml.Attr{ - Name: xml.Name{Local: "name"}, - Value: a.Name, - }) - if a.Chain != "" { - start.Attr = append(start.Attr, xml.Attr{ - Name: xml.Name{Local: "chain"}, - Value: a.Chain, - }) - } - if a.Priority != 0 { - start.Attr = append(start.Attr, xml.Attr{ - Name: xml.Name{Local: "priority"}, - Value: fmt.Sprintf("%d", a.Priority), - }) - } - err := e.EncodeToken(start) - if err != nil { - return err - } - if a.UUID != "" { - uuid := xml.StartElement{ - Name: xml.Name{Local: "uuid"}, - } - e.EncodeToken(uuid) - e.EncodeToken(xml.CharData(a.UUID)) - e.EncodeToken(uuid.End()) - } - - for _, entry := range a.Entries { - if entry.Rule != nil { - rule := xml.StartElement{ - Name: xml.Name{Local: "rule"}, - } - e.EncodeElement(entry.Rule, rule) - } else if entry.Ref != nil { - ref := xml.StartElement{ - Name: xml.Name{Local: "filterref"}, - } - e.EncodeElement(entry.Ref, ref) - } - } - - err = e.EncodeToken(start.End()) - if err != nil { - return err - } - return nil -} - -func (a *NWFilter) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - name, ok := getAttr(start.Attr, "name") - if !ok { - return fmt.Errorf("Missing filter name") - } - a.Name = name - a.Chain, _ = getAttr(start.Attr, "chain") - prio, ok := getAttr(start.Attr, "priority") - if ok { - val, err := strconv.ParseInt(prio, 10, 64) - if err != nil { - return err - } - a.Priority = int(val) - } - - for { - tok, err := d.Token() - if err == io.EOF { - break - } - - switch tok := tok.(type) { - case xml.StartElement: - { - if tok.Name.Local == "uuid" { - txt, err := d.Token() - if err != nil { - return err - } - - txt2, ok := txt.(xml.CharData) - if !ok { - return fmt.Errorf("Expected UUID string") - } - a.UUID = string(txt2) - } else if tok.Name.Local == "rule" { - entry := NWFilterEntry{ - Rule: &NWFilterRule{}, - } - - d.DecodeElement(entry.Rule, &tok) - - a.Entries = append(a.Entries, entry) - } else if tok.Name.Local == "filterref" { - entry := NWFilterEntry{ - Ref: &NWFilterRef{}, - } - - d.DecodeElement(entry.Ref, &tok) - - a.Entries = append(a.Entries, entry) - } - } - } - - } - return nil -} - -func (s *NWFilter) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *NWFilter) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} diff --git a/vendor/libvirt.org/go/libvirtxml/nwfilter_binding.go b/vendor/libvirt.org/go/libvirtxml/nwfilter_binding.go deleted file mode 100644 index b9bdfa0320..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/nwfilter_binding.go +++ /dev/null @@ -1,73 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2017 Lian Duan - * - */ - -package libvirtxml - -import ( - "encoding/xml" -) - -type NWFilterBinding struct { - XMLName xml.Name `xml:"filterbinding"` - Owner *NWFilterBindingOwner `xml:"owner"` - PortDev *NWFilterBindingPortDev `xml:"portdev"` - MAC *NWFilterBindingMAC `xml:"mac"` - FilterRef *NWFilterBindingFilterRef `xml:"filterref"` -} - -type NWFilterBindingOwner struct { - UUID string `xml:"uuid,omitempty"` - Name string `xml:"name,omitempty"` -} - -type NWFilterBindingPortDev struct { - Name string `xml:"name,attr"` -} - -type NWFilterBindingMAC struct { - Address string `xml:"address,attr"` -} - -type NWFilterBindingFilterRef struct { - Filter string `xml:"filter,attr"` - Parameters []NWFilterBindingFilterParam `xml:"parameter"` -} - -type NWFilterBindingFilterParam struct { - Name string `xml:"name,attr"` - Value string `xml:"value,attr"` -} - -func (s *NWFilterBinding) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *NWFilterBinding) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} diff --git a/vendor/libvirt.org/go/libvirtxml/secret.go b/vendor/libvirt.org/go/libvirtxml/secret.go deleted file mode 100644 index 969466562e..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/secret.go +++ /dev/null @@ -1,58 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2016 Red Hat, Inc. - * - */ - -package libvirtxml - -import ( - "encoding/xml" -) - -type SecretUsage struct { - Type string `xml:"type,attr"` - Volume string `xml:"volume,omitempty"` - Name string `xml:"name,omitempty"` - Target string `xml:"target,omitempty"` -} - -type Secret struct { - XMLName xml.Name `xml:"secret"` - Ephemeral string `xml:"ephemeral,attr,omitempty"` - Private string `xml:"private,attr,omitempty"` - Description string `xml:"description,omitempty"` - UUID string `xml:"uuid,omitempty"` - Usage *SecretUsage `xml:"usage"` -} - -func (s *Secret) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *Secret) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} diff --git a/vendor/libvirt.org/go/libvirtxml/storage_encryption.go b/vendor/libvirt.org/go/libvirtxml/storage_encryption.go deleted file mode 100644 index 5066536d7a..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/storage_encryption.go +++ /dev/null @@ -1,50 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2017 Red Hat, Inc. - * - */ - -package libvirtxml - -type StorageEncryptionSecret struct { - Type string `xml:"type,attr"` - UUID string `xml:"uuid,attr"` -} - -type StorageEncryptionCipher struct { - Name string `xml:"name,attr"` - Size uint64 `xml:"size,attr"` - Mode string `xml:"mode,attr"` - Hash string `xml:"hash,attr"` -} - -type StorageEncryptionIvgen struct { - Name string `xml:"name,attr"` - Hash string `xml:"hash,attr"` -} - -type StorageEncryption struct { - Format string `xml:"format,attr"` - Secret *StorageEncryptionSecret `xml:"secret"` - Cipher *StorageEncryptionCipher `xml:"cipher"` - Ivgen *StorageEncryptionIvgen `xml:"ivgen"` -} diff --git a/vendor/libvirt.org/go/libvirtxml/storage_pool.go b/vendor/libvirt.org/go/libvirtxml/storage_pool.go deleted file mode 100644 index bc65ea8046..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/storage_pool.go +++ /dev/null @@ -1,243 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2017 Red Hat, Inc. - * - */ - -package libvirtxml - -import "encoding/xml" - -type StoragePoolSize struct { - Unit string `xml:"unit,attr,omitempty"` - Value uint64 `xml:",chardata"` -} - -type StoragePoolTargetPermissions struct { - Owner string `xml:"owner,omitempty"` - Group string `xml:"group,omitempty"` - Mode string `xml:"mode,omitempty"` - Label string `xml:"label,omitempty"` -} - -type StoragePoolTargetTimestamps struct { - Atime string `xml:"atime"` - Mtime string `xml:"mtime"` - Ctime string `xml:"ctime"` -} - -type StoragePoolTarget struct { - Path string `xml:"path,omitempty"` - Permissions *StoragePoolTargetPermissions `xml:"permissions"` - Timestamps *StoragePoolTargetTimestamps `xml:"timestamps"` - Encryption *StorageEncryption `xml:"encryption"` -} - -type StoragePoolSourceFormat struct { - Type string `xml:"type,attr"` -} - -type StoragePoolSourceProtocol struct { - Version string `xml:"ver,attr"` -} - -type StoragePoolSourceHost struct { - Name string `xml:"name,attr"` - Port string `xml:"port,attr,omitempty"` -} - -type StoragePoolSourceDevice struct { - Path string `xml:"path,attr"` - PartSeparator string `xml:"part_separator,attr,omitempty"` - FreeExtents []StoragePoolSourceDeviceFreeExtent `xml:"freeExtent"` -} - -type StoragePoolSourceDeviceFreeExtent struct { - Start uint64 `xml:"start,attr"` - End uint64 `xml:"end,attr"` -} - -type StoragePoolSourceAuthSecret struct { - Usage string `xml:"usage,attr,omitempty"` - UUID string `xml:"uuid,attr,omitempty"` -} - -type StoragePoolSourceAuth struct { - Type string `xml:"type,attr"` - Username string `xml:"username,attr"` - Secret *StoragePoolSourceAuthSecret `xml:"secret"` -} - -type StoragePoolSourceVendor struct { - Name string `xml:"name,attr"` -} - -type StoragePoolSourceProduct struct { - Name string `xml:"name,attr"` -} - -type StoragePoolPCIAddress struct { - Domain *uint `xml:"domain,attr"` - Bus *uint `xml:"bus,attr"` - Slot *uint `xml:"slot,attr"` - Function *uint `xml:"function,attr"` -} - -type StoragePoolSourceAdapterParentAddr struct { - UniqueID uint64 `xml:"unique_id,attr"` - Address *StoragePoolPCIAddress `xml:"address"` -} - -type StoragePoolSourceAdapter struct { - Type string `xml:"type,attr,omitempty"` - Name string `xml:"name,attr,omitempty"` - Parent string `xml:"parent,attr,omitempty"` - Managed string `xml:"managed,attr,omitempty"` - WWNN string `xml:"wwnn,attr,omitempty"` - WWPN string `xml:"wwpn,attr,omitempty"` - ParentAddr *StoragePoolSourceAdapterParentAddr `xml:"parentaddr"` -} - -type StoragePoolSourceDir struct { - Path string `xml:"path,attr"` -} - -type StoragePoolSourceInitiator struct { - IQN StoragePoolSourceInitiatorIQN `xml:"iqn"` -} - -type StoragePoolSourceInitiatorIQN struct { - Name string `xml:"name,attr,omitempty"` -} - -type StoragePoolSource struct { - Name string `xml:"name,omitempty"` - Dir *StoragePoolSourceDir `xml:"dir"` - Host []StoragePoolSourceHost `xml:"host"` - Device []StoragePoolSourceDevice `xml:"device"` - Auth *StoragePoolSourceAuth `xml:"auth"` - Vendor *StoragePoolSourceVendor `xml:"vendor"` - Product *StoragePoolSourceProduct `xml:"product"` - Format *StoragePoolSourceFormat `xml:"format"` - Protocol *StoragePoolSourceProtocol `xml:"protocol"` - Adapter *StoragePoolSourceAdapter `xml:"adapter"` - Initiator *StoragePoolSourceInitiator `xml:"initiator"` -} - -type StoragePoolRefreshVol struct { - Allocation string `xml:"allocation,attr"` -} - -type StoragePoolRefresh struct { - Volume StoragePoolRefreshVol `xml:"volume"` -} - -type StoragePoolFeatures struct { - COW StoragePoolFeatureCOW `xml:"cow"` -} - -type StoragePoolFeatureCOW struct { - State string `xml:"state,attr"` -} - -type StoragePool struct { - XMLName xml.Name `xml:"pool"` - Type string `xml:"type,attr"` - Name string `xml:"name,omitempty"` - UUID string `xml:"uuid,omitempty"` - Allocation *StoragePoolSize `xml:"allocation"` - Capacity *StoragePoolSize `xml:"capacity"` - Available *StoragePoolSize `xml:"available"` - Features *StoragePoolFeatures `xml:"features"` - Target *StoragePoolTarget `xml:"target"` - Source *StoragePoolSource `xml:"source"` - Refresh *StoragePoolRefresh `xml:"refresh"` - - /* Pool backend namespcaes must be last */ - FSCommandline *StoragePoolFSCommandline - RBDCommandline *StoragePoolRBDCommandline -} - -type StoragePoolFSCommandlineOption struct { - Name string `xml:"name,attr"` -} - -type StoragePoolFSCommandline struct { - XMLName xml.Name `xml:"http://libvirt.org/schemas/storagepool/fs/1.0 mount_opts"` - Options []StoragePoolFSCommandlineOption `xml:"option"` -} - -type StoragePoolRBDCommandlineOption struct { - Name string `xml:"name,attr"` - Value string `xml:"value,attr"` -} - -type StoragePoolRBDCommandline struct { - XMLName xml.Name `xml:"http://libvirt.org/schemas/storagepool/rbd/1.0 config_opts"` - Options []StoragePoolRBDCommandlineOption `xml:"option"` -} - -func (a *StoragePoolPCIAddress) MarshalXML(e *xml.Encoder, start xml.StartElement) error { - marshalUintAttr(&start, "domain", a.Domain, "0x%04x") - marshalUintAttr(&start, "bus", a.Bus, "0x%02x") - marshalUintAttr(&start, "slot", a.Slot, "0x%02x") - marshalUintAttr(&start, "function", a.Function, "0x%x") - e.EncodeToken(start) - e.EncodeToken(start.End()) - return nil -} - -func (a *StoragePoolPCIAddress) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error { - for _, attr := range start.Attr { - if attr.Name.Local == "domain" { - if err := unmarshalUintAttr(attr.Value, &a.Domain, 0); err != nil { - return err - } - } else if attr.Name.Local == "bus" { - if err := unmarshalUintAttr(attr.Value, &a.Bus, 0); err != nil { - return err - } - } else if attr.Name.Local == "slot" { - if err := unmarshalUintAttr(attr.Value, &a.Slot, 0); err != nil { - return err - } - } else if attr.Name.Local == "function" { - if err := unmarshalUintAttr(attr.Value, &a.Function, 0); err != nil { - return err - } - } - } - d.Skip() - return nil -} - -func (s *StoragePool) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *StoragePool) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} diff --git a/vendor/libvirt.org/go/libvirtxml/storage_vol.go b/vendor/libvirt.org/go/libvirtxml/storage_vol.go deleted file mode 100644 index 926783a0e1..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/storage_vol.go +++ /dev/null @@ -1,102 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2017 Red Hat, Inc. - * - */ - -package libvirtxml - -import "encoding/xml" - -type StorageVolumeSize struct { - Unit string `xml:"unit,attr,omitempty"` - Value uint64 `xml:",chardata"` -} - -type StorageVolumeTargetPermissions struct { - Owner string `xml:"owner,omitempty"` - Group string `xml:"group,omitempty"` - Mode string `xml:"mode,omitempty"` - Label string `xml:"label,omitempty"` -} - -type StorageVolumeTargetFeature struct { - LazyRefcounts *struct{} `xml:"lazy_refcounts"` - ExtendedL2 *struct{} `xml:"extended_l2"` -} - -type StorageVolumeTargetFormat struct { - Type string `xml:"type,attr"` -} - -type StorageVolumeTargetTimestamps struct { - Atime string `xml:"atime"` - Mtime string `xml:"mtime"` - Ctime string `xml:"ctime"` -} - -type StorageVolumeTargetClusterSize struct { - Unit string `xml:"unit,attr,omitempty"` - Value uint64 `xml:",chardata"` -} - -type StorageVolumeTarget struct { - Path string `xml:"path,omitempty"` - Format *StorageVolumeTargetFormat `xml:"format"` - Permissions *StorageVolumeTargetPermissions `xml:"permissions"` - Timestamps *StorageVolumeTargetTimestamps `xml:"timestamps"` - Compat string `xml:"compat,omitempty"` - ClusterSize *StorageVolumeTargetClusterSize `xml:"clusterSize"` - NoCOW *struct{} `xml:"nocow"` - Features []StorageVolumeTargetFeature `xml:"features"` - Encryption *StorageEncryption `xml:"encryption"` -} - -type StorageVolumeBackingStore struct { - Path string `xml:"path"` - Format *StorageVolumeTargetFormat `xml:"format"` - Permissions *StorageVolumeTargetPermissions `xml:"permissions"` -} - -type StorageVolume struct { - XMLName xml.Name `xml:"volume"` - Type string `xml:"type,attr,omitempty"` - Name string `xml:"name"` - Key string `xml:"key,omitempty"` - Allocation *StorageVolumeSize `xml:"allocation"` - Capacity *StorageVolumeSize `xml:"capacity"` - Physical *StorageVolumeSize `xml:"physical"` - Target *StorageVolumeTarget `xml:"target"` - BackingStore *StorageVolumeBackingStore `xml:"backingStore"` -} - -func (s *StorageVolume) Unmarshal(doc string) error { - return xml.Unmarshal([]byte(doc), s) -} - -func (s *StorageVolume) Marshal() (string, error) { - doc, err := xml.MarshalIndent(s, "", " ") - if err != nil { - return "", err - } - return string(doc), nil -} diff --git a/vendor/libvirt.org/go/libvirtxml/xmlutil.go b/vendor/libvirt.org/go/libvirtxml/xmlutil.go deleted file mode 100644 index 3d039719e0..0000000000 --- a/vendor/libvirt.org/go/libvirtxml/xmlutil.go +++ /dev/null @@ -1,291 +0,0 @@ -/* - * This file is part of the libvirt-go-xml-module project - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * Copyright (C) 2017 Red Hat, Inc. - * - */ - -package libvirtxml - -import ( - "encoding/xml" - "fmt" - "strconv" - "strings" -) - -type element struct { - XMLNS string - Name string - Attrs map[string]string - Content string - Children []*element -} - -type elementstack []*element - -func (s *elementstack) push(v *element) { - *s = append(*s, v) -} - -func (s *elementstack) pop() *element { - res := (*s)[len(*s)-1] - *s = (*s)[:len(*s)-1] - return res -} - -func getNamespaceURI(xmlnsMap map[string]string, xmlns string, name xml.Name) string { - if name.Space != "" { - uri, ok := xmlnsMap[name.Space] - if !ok { - return "undefined://" + name.Space - } else { - return uri - } - } else { - return xmlns - } -} - -func xmlName(xmlns string, name xml.Name) string { - if xmlns == "" { - return name.Local - } - return name.Local + "(" + xmlns + ")" -} - -func loadXML(xmlstr string, ignoreNSDecl bool) (*element, error) { - xmlnsMap := make(map[string]string) - xmlr := strings.NewReader(xmlstr) - - d := xml.NewDecoder(xmlr) - var root *element - stack := elementstack{} - for { - t, err := d.RawToken() - if err != nil { - return nil, err - } - - var parent *element - if root != nil { - if len(stack) == 0 { - return nil, fmt.Errorf("Unexpectedly empty stack") - } - parent = stack[len(stack)-1] - } - - switch t := t.(type) { - case xml.StartElement: - xmlns := "" - if parent != nil { - xmlns = parent.XMLNS - } - for _, a := range t.Attr { - if a.Name.Space == "xmlns" { - xmlnsMap[a.Name.Local] = a.Value - } else if a.Name.Space == "" && a.Name.Local == "xmlns" { - xmlns = a.Value - } - } - xmlns = getNamespaceURI(xmlnsMap, xmlns, t.Name) - child := &element{ - XMLNS: xmlns, - Name: xmlName(xmlns, t.Name), - Attrs: make(map[string]string), - } - - for _, a := range t.Attr { - if a.Name.Space == "xmlns" { - continue - } - if a.Name.Space == "" && a.Name.Local == "xmlns" { - continue - } - attrNS := getNamespaceURI(xmlnsMap, "", a.Name) - child.Attrs[xmlName(attrNS, a.Name)] = a.Value - } - stack.push(child) - if root == nil { - root = child - } else { - parent.Children = append(parent.Children, child) - parent.Content = "" - } - case xml.EndElement: - stack.pop() - case xml.CharData: - if parent != nil && len(parent.Children) == 0 { - val := string(t) - if strings.TrimSpace(val) != "" { - parent.Content = val - } - } - } - - if root != nil && len(stack) == 0 { - break - } - } - - return root, nil -} - -func testCompareValue(filename, path, key, expected, actual string) error { - if expected == actual { - return nil - } - - i1, err1 := strconv.ParseInt(expected, 0, 64) - i2, err2 := strconv.ParseInt(actual, 0, 64) - if err1 == nil && err2 == nil && i1 == i2 { - return nil - } - path = path + "/@" + key - return fmt.Errorf("%s: %s: attribute actual value '%s' does not match expected value '%s'", - filename, path, actual, expected) -} - -func testCompareElement(filename, expectPath, actualPath string, expect, actual *element, extraExpectNodes, extraActualNodes map[string]bool) error { - if expect.Name != actual.Name { - return fmt.Errorf("%s: name '%s' doesn't match '%s'", - expectPath, expect.Name, actual.Name) - } - - expectAttr := expect.Attrs - for key, val := range actual.Attrs { - expectval, ok := expectAttr[key] - if !ok { - attrPath := actualPath + "/@" + key - if _, ok := extraActualNodes[attrPath]; ok { - continue - } - return fmt.Errorf("%s: %s: attribute in actual XML missing in expected XML", - filename, attrPath) - } - err := testCompareValue(filename, actualPath, key, expectval, val) - if err != nil { - return err - } - delete(expectAttr, key) - } - for key, _ := range expectAttr { - attrPath := expectPath + "/@" + key - if _, ok := extraExpectNodes[attrPath]; ok { - continue - } - return fmt.Errorf("%s: %s: attribute '%s' in expected XML missing in actual XML", - filename, attrPath, expectAttr[key]) - } - - if expect.Content != actual.Content { - return fmt.Errorf("%s: %s: actual content '%s' does not match expected '%s'", - filename, actualPath, actual.Content, expect.Content) - } - - used := make([]bool, len(actual.Children)) - expectChildIndexes := make(map[string]uint) - actualChildIndexes := make(map[string]uint) - for _, expectChild := range expect.Children { - expectIndex, _ := expectChildIndexes[expectChild.Name] - expectChildIndexes[expectChild.Name] = expectIndex + 1 - subExpectPath := fmt.Sprintf("%s/%s[%d]", expectPath, expectChild.Name, expectIndex) - - var actualChild *element = nil - for i := 0; i < len(used); i++ { - if !used[i] && actual.Children[i].Name == expectChild.Name { - actualChild = actual.Children[i] - used[i] = true - break - } - } - if actualChild == nil { - if _, ok := extraExpectNodes[subExpectPath]; ok { - continue - } - return fmt.Errorf("%s: %s: element in expected XML missing in actual XML", - filename, subExpectPath) - } - - actualIndex, _ := actualChildIndexes[actualChild.Name] - actualChildIndexes[actualChild.Name] = actualIndex + 1 - subActualPath := fmt.Sprintf("%s/%s[%d]", actualPath, actualChild.Name, actualIndex) - - err := testCompareElement(filename, subExpectPath, subActualPath, expectChild, actualChild, extraExpectNodes, extraActualNodes) - if err != nil { - return err - } - } - - actualChildIndexes = make(map[string]uint) - for i, actualChild := range actual.Children { - actualIndex, _ := actualChildIndexes[actualChild.Name] - actualChildIndexes[actualChild.Name] = actualIndex + 1 - if used[i] { - continue - } - subActualPath := fmt.Sprintf("%s/%s[%d]", actualPath, actualChild.Name, actualIndex) - - if _, ok := extraActualNodes[subActualPath]; ok { - continue - } - return fmt.Errorf("%s: %s: element in actual XML missing in expected XML", - filename, subActualPath) - } - - return nil -} - -func makeExtraNodeMap(nodes []string) map[string]bool { - ret := make(map[string]bool) - for _, node := range nodes { - ret[node] = true - } - return ret -} - -func testCompareXML(filename, expectStr, actualStr string, extraExpectNodes, extraActualNodes []string) error { - extraExpectNodeMap := makeExtraNodeMap(extraExpectNodes) - extraActualNodeMap := makeExtraNodeMap(extraActualNodes) - - //fmt.Printf("%s\n", expectedstr) - expectRoot, err := loadXML(expectStr, true) - if err != nil { - return err - } - //fmt.Printf("%s\n", actualstr) - actualRoot, err := loadXML(actualStr, true) - if err != nil { - return err - } - - if expectRoot.Name != actualRoot.Name { - return fmt.Errorf("%s: /: expected root element '%s' does not match actual '%s'", - filename, expectRoot.Name, actualRoot.Name) - } - - err = testCompareElement(filename, "/"+expectRoot.Name+"[0]", "/"+actualRoot.Name+"[0]", expectRoot, actualRoot, extraExpectNodeMap, extraActualNodeMap) - if err != nil { - return err - } - - return nil -} diff --git a/vendor/modules.txt b/vendor/modules.txt index 83562f5e32..1b43ed74c3 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -59,9 +59,6 @@ github.com/YourFin/binappend # github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d ## explicit github.com/acarl005/stripansi -# github.com/apparentlymart/go-cidr v1.1.1 -## explicit -github.com/apparentlymart/go-cidr/cidr # github.com/areYouLazy/libhosty v1.1.0 ## explicit; go 1.16 github.com/areYouLazy/libhosty @@ -94,18 +91,7 @@ github.com/cloudflare/circl/sign/ed448 # github.com/containers/gvisor-tap-vsock v0.8.9 ## explicit; go 1.25.0 github.com/containers/gvisor-tap-vsock/pkg/client -github.com/containers/gvisor-tap-vsock/pkg/fs -github.com/containers/gvisor-tap-vsock/pkg/net/stdio -github.com/containers/gvisor-tap-vsock/pkg/notification -github.com/containers/gvisor-tap-vsock/pkg/services/dhcp -github.com/containers/gvisor-tap-vsock/pkg/services/dns -github.com/containers/gvisor-tap-vsock/pkg/services/forwarder -github.com/containers/gvisor-tap-vsock/pkg/sshclient -github.com/containers/gvisor-tap-vsock/pkg/tap -github.com/containers/gvisor-tap-vsock/pkg/transport github.com/containers/gvisor-tap-vsock/pkg/types -github.com/containers/gvisor-tap-vsock/pkg/utils -github.com/containers/gvisor-tap-vsock/pkg/virtualnetwork # github.com/containers/libhvee v0.11.0 ## explicit; go 1.25.0 github.com/containers/libhvee/pkg/hypervctl @@ -144,7 +130,6 @@ github.com/crc-org/admin-helper/pkg/hosts github.com/crc-org/admin-helper/pkg/types # github.com/crc-org/machine v0.0.0-20260721135927-5bcb8a00e0f1 ## explicit; go 1.17 -github.com/crc-org/machine/drivers/libvirt github.com/crc-org/machine/libmachine/drivers github.com/crc-org/machine/libmachine/drivers/plugin/localbinary github.com/crc-org/machine/libmachine/drivers/rpc @@ -273,9 +258,6 @@ github.com/gogo/protobuf/proto # github.com/golang/protobuf v1.5.4 ## explicit; go 1.17 github.com/golang/protobuf/proto -# github.com/google/btree v1.1.3 -## explicit; go 1.18 -github.com/google/btree # github.com/google/gnostic-models v0.7.0 ## explicit; go 1.22 github.com/google/gnostic-models/compiler @@ -293,10 +275,6 @@ github.com/google/go-cmp/cmp/internal/value # github.com/google/go-containerregistry v0.21.5 ## explicit; go 1.25.0 github.com/google/go-containerregistry/pkg/name -# github.com/google/gopacket v1.1.19 -## explicit; go 1.12 -github.com/google/gopacket -github.com/google/gopacket/layers # github.com/google/pprof v0.0.0-20260402051712-545e8a4df936 ## explicit; go 1.24.0 github.com/google/pprof/profile @@ -331,16 +309,6 @@ github.com/hectane/go-acl/api # github.com/inconshreveable/mousetrap v1.1.0 ## explicit; go 1.18 github.com/inconshreveable/mousetrap -# github.com/inetaf/tcpproxy v0.0.0-20250222171855-c4b9df066048 -## explicit; go 1.16 -github.com/inetaf/tcpproxy -# github.com/insomniacslk/dhcp v0.0.0-20240710054256-ddd8a41251c9 -## explicit; go 1.20 -github.com/insomniacslk/dhcp/dhcpv4 -github.com/insomniacslk/dhcp/dhcpv4/server4 -github.com/insomniacslk/dhcp/iana -github.com/insomniacslk/dhcp/interfaces -github.com/insomniacslk/dhcp/rfc1035label # github.com/jinzhu/copier v0.4.0 ## explicit; go 1.13 github.com/jinzhu/copier @@ -396,18 +364,9 @@ github.com/mattn/go-runewidth # github.com/mattn/go-sqlite3 v1.14.44 ## explicit; go 1.21 github.com/mattn/go-sqlite3 -# github.com/mdlayher/socket v0.6.0 -## explicit; go 1.25.0 -github.com/mdlayher/socket -# github.com/mdlayher/vsock v1.3.0 -## explicit; go 1.25.0 -github.com/mdlayher/vsock # github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d ## explicit github.com/mgutz/ansi -# github.com/miekg/dns v1.1.72 -## explicit; go 1.24.0 -github.com/miekg/dns # github.com/miekg/pkcs11 v1.1.1 ## explicit; go 1.12 github.com/miekg/pkcs11 @@ -432,8 +391,6 @@ github.com/modern-go/reflect2 # github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 ## explicit github.com/munnerz/goautoneg -# github.com/nxadm/tail v1.4.11 -## explicit; go 1.13 # github.com/onsi/ginkgo/v2 v2.32.0 ## explicit; go 1.25.0 github.com/onsi/ginkgo/v2 @@ -518,13 +475,6 @@ github.com/pelletier/go-toml/v2/internal/characters github.com/pelletier/go-toml/v2/internal/danger github.com/pelletier/go-toml/v2/internal/tracker github.com/pelletier/go-toml/v2/unstable -# github.com/pierrec/lz4/v4 v4.1.14 -## explicit; go 1.14 -github.com/pierrec/lz4/v4 -github.com/pierrec/lz4/v4/internal/lz4block -github.com/pierrec/lz4/v4/internal/lz4errors -github.com/pierrec/lz4/v4/internal/lz4stream -github.com/pierrec/lz4/v4/internal/xxh32 # github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c ## explicit; go 1.14 github.com/pkg/browser @@ -638,10 +588,6 @@ github.com/tklauser/go-sysconf # github.com/tklauser/numcpus v0.11.0 ## explicit; go 1.24.0 github.com/tklauser/numcpus -# github.com/u-root/uio v0.0.0-20240224005618-d2acac8f3701 -## explicit; go 1.21 -github.com/u-root/uio/rand -github.com/u-root/uio/uio # github.com/ulikunitz/xz v0.5.15 ## explicit; go 1.12 github.com/ulikunitz/xz @@ -786,13 +732,11 @@ golang.org/x/crypto/scrypt golang.org/x/crypto/sha3 golang.org/x/crypto/ssh golang.org/x/crypto/ssh/internal/bcrypt_pbkdf -golang.org/x/crypto/ssh/knownhosts # golang.org/x/mod v0.37.0 ## explicit; go 1.25.0 golang.org/x/mod/semver # golang.org/x/net v0.57.0 ## explicit; go 1.25.0 -golang.org/x/net/bpf golang.org/x/net/context golang.org/x/net/html golang.org/x/net/html/atom @@ -804,11 +748,7 @@ golang.org/x/net/http2/hpack golang.org/x/net/idna golang.org/x/net/internal/httpcommon golang.org/x/net/internal/httpsfv -golang.org/x/net/internal/iana -golang.org/x/net/internal/socket golang.org/x/net/internal/timeseries -golang.org/x/net/ipv4 -golang.org/x/net/ipv6 golang.org/x/net/trace # golang.org/x/oauth2 v0.36.0 ## explicit; go 1.25.0 @@ -1006,52 +946,6 @@ gopkg.in/natefinch/lumberjack.v2 # gopkg.in/yaml.v3 v3.0.1 ## explicit gopkg.in/yaml.v3 -# gvisor.dev/gvisor v0.0.0-20240916094835-a174eb65023f -## explicit; go 1.22.0 -gvisor.dev/gvisor/pkg/atomicbitops -gvisor.dev/gvisor/pkg/bits -gvisor.dev/gvisor/pkg/buffer -gvisor.dev/gvisor/pkg/context -gvisor.dev/gvisor/pkg/cpuid -gvisor.dev/gvisor/pkg/gohacks -gvisor.dev/gvisor/pkg/goid -gvisor.dev/gvisor/pkg/linewriter -gvisor.dev/gvisor/pkg/log -gvisor.dev/gvisor/pkg/rand -gvisor.dev/gvisor/pkg/refs -gvisor.dev/gvisor/pkg/sleep -gvisor.dev/gvisor/pkg/state -gvisor.dev/gvisor/pkg/state/wire -gvisor.dev/gvisor/pkg/sync -gvisor.dev/gvisor/pkg/sync/locking -gvisor.dev/gvisor/pkg/tcpip -gvisor.dev/gvisor/pkg/tcpip/adapters/gonet -gvisor.dev/gvisor/pkg/tcpip/checksum -gvisor.dev/gvisor/pkg/tcpip/hash/jenkins -gvisor.dev/gvisor/pkg/tcpip/header -gvisor.dev/gvisor/pkg/tcpip/header/parse -gvisor.dev/gvisor/pkg/tcpip/internal/tcp -gvisor.dev/gvisor/pkg/tcpip/link/nested -gvisor.dev/gvisor/pkg/tcpip/link/sniffer -gvisor.dev/gvisor/pkg/tcpip/network/arp -gvisor.dev/gvisor/pkg/tcpip/network/hash -gvisor.dev/gvisor/pkg/tcpip/network/internal/fragmentation -gvisor.dev/gvisor/pkg/tcpip/network/internal/ip -gvisor.dev/gvisor/pkg/tcpip/network/internal/multicast -gvisor.dev/gvisor/pkg/tcpip/network/ipv4 -gvisor.dev/gvisor/pkg/tcpip/ports -gvisor.dev/gvisor/pkg/tcpip/seqnum -gvisor.dev/gvisor/pkg/tcpip/stack -gvisor.dev/gvisor/pkg/tcpip/transport -gvisor.dev/gvisor/pkg/tcpip/transport/icmp -gvisor.dev/gvisor/pkg/tcpip/transport/internal/network -gvisor.dev/gvisor/pkg/tcpip/transport/internal/noop -gvisor.dev/gvisor/pkg/tcpip/transport/packet -gvisor.dev/gvisor/pkg/tcpip/transport/raw -gvisor.dev/gvisor/pkg/tcpip/transport/tcp -gvisor.dev/gvisor/pkg/tcpip/transport/tcpconntrack -gvisor.dev/gvisor/pkg/tcpip/transport/udp -gvisor.dev/gvisor/pkg/waiter # k8s.io/api v0.35.1 ## explicit; go 1.25.0 k8s.io/api/admissionregistration/v1 @@ -1334,9 +1228,6 @@ k8s.io/utils/clock k8s.io/utils/internal/third_party/forked/golang/net k8s.io/utils/net k8s.io/utils/ptr -# libvirt.org/go/libvirtxml v1.12005.0 -## explicit; go 1.11 -libvirt.org/go/libvirtxml # sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730 ## explicit; go 1.23 sigs.k8s.io/json